Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage...

499
Government of Meghalaya SEPTAGE WASTE MANAGEMENT FOR SHILLONG UNDER AMRUT BIDDING DOCUMENTS Issued on: For A Contract Contract Package no. NCB/SWM/SMB/01 NATIONAL COMPETITIVE BIDDING Septage Management in Shillong covering Shillong Municipal area. The work includes (i) design and build Septage waste treatment plant of capacity 115m3/day and all appurtenant structures and allied works complete including testing, Trial run for 3 Months and commissioning of the plant to the satisfaction of the Engineer (period of completion - 12 months); (ii) operation & maintenance of the complete works of septage waste treatment plant and allied works for a period of 5 years at Mawiong, Shillong, State of Meghalaya, India. Chief Executive Officer Shillong Municipal Board, Bishop Cotton Road Shillong, Meghalaya – 793 001 Phone No., +91-364-2224702; Fax No., +91-364-2224850 Email:, [email protected] Website: http://smb.gov.in 28 th April,2017

Transcript of Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage...

Page 1: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Government of Meghalaya SEPTAGE WASTE MANAGEMENT FOR SHILLONG

UNDER

AMRUT

BIDDING DOCUMENTS Issued on:

For A Contract Contract Package no. NCB/SWM/SMB/01

NATIONAL COMPETITIVE BIDDING

Septage Management in Shillong covering Shillong Municipal area. The work includes (i) design and build Septage waste treatment plant of capacity 115m3/day and all appurtenant structures and

allied works complete including testing, Trial run for 3 Months and commissioning of the plant to the satisfaction of the Engineer

(period of completion - 12 months); (ii) operation & maintenance of the complete works of septage waste treatment plant and allied

works for a period of 5 years at Mawiong, Shillong, State of Meghalaya, India.

Chief Executive Officer Shillong Municipal Board, Bishop Cotton Road

Shillong, Meghalaya – 793 001 Phone No., +91-364-2224702; Fax No., +91-364-2224850

Email:, [email protected] Website: http://smb.gov.in

28th April,2017

Page 2: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

INDEX

Bidding Documents

Appendix to ITB – Qualification Criteria

Annex A to Bidding Documents

Bidder’s Bid Form

Bidder’s Price Schedules

Form of Bid Security

Form of Performance Security

Form of Bank Guarantee – Advance Payment

Format of Curriculum Vitae for Proposed Key Staff

Form for Clarification Questions

Appendix to Annex A - Information Forms

Annex B to Bidding Documents

Form of Contract

General Conditions of Contract

Appendix 1: Special Conditions of Contract Appendix

Appendix 2: Technical Specifications Appendix

2A: Design-Build Services Appendix

2B: Operations Service Appendix

2C: Technical Standards Appendix

Appendix 3: Drawings Appendix 4: Operator’s Bid including the Technical Proposal, Price Proposal

Page 3: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

SEPTAGE WASTE MANAGEMENT for Shillong UNDER AMRUT

BIDDING DOCUMENTS

FOR A CONTRACT TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY

AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER

(PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT

MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

28th April, 2017

Page 4: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Invitation for Bids

CONTRACT TO

SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY AND

ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE

WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA

Page 5: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

No. SMB/PW/1/17-18/30 Dated Shillong the 28th April,2017

I NV I T A T I ON F OR B I D (NCB)

Contract Title:

Septage Management in Shillong covering Shillong Municipal area. The work includes (i) design and build115m3/day and all appurtenant structures and allied works complete including testing, Trial run for 3 Months and commissioning of the plant to the satisfaction of the Engineer (period of completion - 12 months ); (ii) operation & maintenance of the complete works of septage waste treatment plant and allied works for a period of 5 years at Mawiong, Shillong, State of Meghalaya, India.

Dead line for the Bid– 23-05-2017 at 14.00hrs

1. The Government of Meghalaya, under AMRUT proposed to have a Septage waste Management system and Shillong Municipal board intends to apply a part of the proceeds towards payments under the contract for work detailed below. Bidders are advised to note the minimum qualification criteria specified in Appendix to the ITB (Instructions to Bidders) in the bidding documents, to qualify for the award of contract.

2. Bidding will be conducted through the National Competitive Bidding Procedure as specified and is open to all eligible bidders as defined in the Guidelines.

3. The Chief Executive officer, Shillong Municipal Board in the State of Meghalaya India invites sealed bids from eligible bidders for the works detailed in the table below. The bidders may submit bids for the following work as per Instructions to Bidders and the Appendix thereto

Name of the Work Estimated cost put to bid

Bid Security Cost of Bidding

Document Period

Design, Construction , Operation, Test and Commission of 115m3/day capacity Septage/ sewage treatment plant (STP) at Shillong with appropriate technology on DBOT Basis, including 5 years of post-commissioning operation and maintenance

Rs 16.00 million including provisional sum of 1.0 million

Rs 3,20,000/-

Rs.3000 Part A: Design, Construction,

Commissioning of 115m3/day capacity STP with 1 year Defect Liability Period

Part B.

Post Commissioning O& M of STP for a period of 5 Years

Page 6: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

4. Interested eligible bidders may obtain further information from and inspect the bidding

documents at the office of the Chief Executive officer, Shillong Municipal Board, Bishop cotton

road, Shillong-793001, at the address given below during office hours i.e. 11.00 to 1600 hours on

all working day from 01-05-17

5. A complete set of Bidding documents will be available on the State Government website

http://meghalaya.nic.in. & Shillong Municipal Board website http://smb.gov.in from 1st May, 2017. The

bidders who are interested to participate in the bidding process can download the bid documents

from the website for their use. The bidders who download the documents shall have to pay along

with their bid submission, then on refundable cost of Rs. 3,000/- (Rupees Three Thousand only)

in the form of a Demand Draft issued by a nationalized bank / foreign bank listed with the

Reserve Bank of India having its branches in Shillong, India, payable to the Chief Executive

officer, Shillong Municipal Board Payable at Shillong. In this case the bid should be submitted

along with required non refundable fees. In absence of this fee, bid will not be accepted

6. Bidders can also purchase the bid documents commencing from 1st May, 2017 on payment of Rs.

3,000/- (Rupees Three thousand only) in the form of a Demand Draft issued by a nationalized

bank / foreign bank listed with the Reserve Bank of India having its branches in India, payable to

the Chief Executive officer, Shillong Municipal Board, Payable at Shillong. Bid documents

requested by shall be sent through speed post / registered post on payment of an extra amount of

Rs. 500/- (Rupees Five hundred only). The Chief Executive officer will not be held responsible

for the postal delay if any, in the delivery of the documents or non-receipt of the same.

7. A pre-bid meeting will be organized for the interested bidders on the dates and timings as

mentioned in the table below.

8. Date and time of Pre-bid meeting – 15/05/2017 at 14.00 hrs

9. The Pre-bid meeting will be held in the office of the Chief Executive officer, Shillong Municipal

Board, Bishop cotton road, Shillong-793001. Interested bidders may choose to attend the pre-bid

meeting at their own expenses.

10. Sealed bids must be delivered to the address mentioned above under para 6 before 14.00 hours on

or before the dates as mentioned in the table below.

11. Last date for Bid Submission– 22/05/2017 at 14.00 hrs

12. All bids must be accompanied by the specified bid security as part of the bid. The amount &

currency of the bid security shall be as specified in table of para 4. The bid security shall be in the

form of a Bank Guarantee or a Demand Draft in favour of Chief Executive officer, Shillong

Municipal Board, Shillong payable at Shillong issued by a nationalized or scheduled bank in

Page 7: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design
Page 8: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

SEPTAGE WASTE MANAGEMENT for Shillong UNDER AMRUT

BIDDING DOCUMENTS

INSTRUCTION TO BIDDERS

FOR A CONTRACT

TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK

INCLUDES (I) DESIGN AND BUILDSEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY AND

ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN

FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER

(PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE

WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT

MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 9: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

TABLE OF CONTENTS

SECTION 1 - INTRODUCTION 1 1.1 Source of Funds 1.2 Eligible Bidders 1 1.3 Eligible Plant and Equipment and Services 3 1.4 Cost of Bidding 3

SE C T I ON 2 - T H E B I DDI NG DOC UM E NT S 4 2.1 Content of Bidding Documents 4 2.2 Clarification of Bidding Documents 5 2.3 Site Visit 5 2.4 Data Room and Background Information 6 2.5 Pre-Bid Meeting 6 2.6 Amendment of Bidding Documents 6 2.7 Contact with the Owner For the Purpose of Clarification 6 2.8 Information Provided by the Owner/Bidders Due Diligence 7 2.9 Timetable 7

SE C T I ON 3 - PR E PAR AT I ON OF B I DS 8 3.1 Language of Bid 8 3.2 Documents Comprising the Bid 8 3.3 Technical Section – Part I – Technical and Staffing Information 9 3.4 Technical Section – Part II – Bid Security 12 3.5 Technical Section – Part III – Bid Form and Updated Prequalification Information 12 3.6 Technical Section – Part IV - Joint Venture Documents and Requirements 13 3.7 Technical Section – Part V – Power of Attorney 13 3.8 Technical Section – Part VI – Commissions and Gratuities 14 3.9 Technical Section – Part VII – Pre-Printed Literature 14 3.10 Financial Section – Price Schedules 14 3.11 Financial Section – Bid Prices 14 3.12 Financial Section – Bid Currencies 15 3.13 Bidding of Alternatives Not to be Considered 15 3.14 Period of Validity of Bid 16 3.15 Format and Signing of Bid 16

SE C T I ON 4 - SUB M I SSI ON OF B I DS 17 4.1 Sealing and Marking of Bids 17 4.2 Deadline for Submission of Bids 17 4.3 Late Bids 17 4.4 Modification and Withdrawal of Bids 17

Page 10: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

TABLE OF CONTENTS

SE C T I ON 5 - B I D OPE NI NG AND E V AL UAT I ON 18 5.1 Opening of Bid by Owner 18 5.2 Clarification of Bids 18 5.3 Preliminary Examination of Bids 18 5.4 Conversion to Single Currency 19 5.5 Technical Evaluation 19 5.6 Price Evaluation 20 5.7 Contacting the Owner 21

SE C T I ON 6 - AW AR D OF C ONT R AC T 22 6.1 Award Criteria 22 6.2 Owner’s Right to Accept or Reject and Waive Irregularities 22 6.3 Notification of Award 22 6.4 Signing the Form of Contract 22 6.5 Performance Security 23 6.6 Failure to Sign the Form of Contract or Provide the Performance Security 23 6.7 Adjudicator 23 6.8 Fraud and Corruption 23

Page 11: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 25

INSTRUCTIONS TO BIDDERS

SE C T I ON 1 - INTRODUCTION

1.1 Scope of work

(1) Scope of work: The bidder’s scope of work shall include(i) design and build Septage waste treatment plant of installed capacity indicated in the Bid Data Sheet and all appurtenant structures and allied works and (ii) operation & maintenanceafter successful commissioning and testing of the complete works (“Project”) of sewage treatment plant, for a period of 5 years at the Place and State indicated in the Bid Data Sheet.

(2) The Shillong Municipal Board (SMB) will make available the land required for the STP and its ancillary works as per the selected bidders design requirements. The selected bidder shall adopt the most appropriate and techno economically feasible treatment process technology and shall design the sewage treatment plant ensuring the effluent quality which complies with the effluent discharge and disposal standards as prescribed by the Central Pollution Control Board / Meghalaya State Pollution Control Board as may be applicable as per the law.

1.2 Eligible Bidders

1.2.1 This Invitation for Bids, issued by the Owner named in the Bid Data Sheet, is open to all bidders from the list of eligible countries is set out in Annexure A Part g.

1.2.2 Bidder shall not have a conflict of interest. Any Bidder found to have a conflict of interest shall be disqualified. A Bidder may be considered to have a conflict of interest for the purpose of this bidding process, if the Bidder: (a) directly or indirectly controls, is controlled by or is under common control with another

Bidder; or (b) receives or has received any direct or indirect subsidy from another Bidder; or (c) has the same legal representative as another Bidder; or (d) has a relationship with another Bidder, directly or through common third parties, that puts

it in a position to influence the bid of another Bidder, or influence the decisions of the Employer regarding this bidding process; or

(e) participates in more than one bid in this bidding process. Participation by a Bidder in more than one Bid will result in the disqualification of all Bids in which such Bidder is involved. However, this does not limit the inclusion of the same subcontractor in more than one bid; or

(f) any of its affiliates participated as a consultant in the preparation of the design or technical specifications of the works that are the subject of the bid; or

(g) any of its affiliates has been hired (or is proposed to be hired) by the Employer or Borrower as Engineer for the Contract implementation; or

Page 12: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 25

(h) would be providing goods, works, or non-consulting services resulting from or directly related to consulting services for the preparation or implementation of the project specified in the BDS ITB 1.1(a) that it provided or were provided by any affiliate that directly or indirectly controls, is controlled by, or is under common control with that firm; or

(i) has a close business or family relationship with a professional staff of the Borrower (or of the project implementing agency, or of a recipient of a part of the loan) who: (i) are directly or indirectly involved in the preparation of the bidding documents or specifications of the contract, and/or the bid evaluation process of such contract; or (ii) would be involved in the implementation or supervision of such contract unless the conflict stemming from such relationship has been resolved in a manner acceptable to the Bank throughout the procurement process and execution of the contract.

1.2.3 Bidders that are Government-owned enterprises or institutions in the Employer’s Country may participate only if they can establish that they (i) are legally and financially autonomous (ii) operate under commercial law, and (iii) are not dependent agencies of the Employer. To be eligible, a government-owned enterprise or institution shall establish to the Bank’s satisfaction, through all relevant documents, including its Charter and other information the Bank may request, that it: (i) is a legal entity separate from the government (ii) does not currently receive substantial subsidies or budget support; (iii) operates like any commercial enterprise, and, inter alia, is not obliged to pass on its surplus to the government, can acquire rights and liabilities, borrow funds and be liable for repayment of its debts, and can be declared bankrupt; and (iv) is not bidding for a contract to be awarded by the department or agency of the government which under their applicable laws or regulations is the reporting or supervisory authority of the enterprise or has the ability to exercise influence or control over the enterprise or institution.

1.2.4 A Bidder shall not be under suspension from bidding by the Employer as the result of the

operation of a Bid–Securing Declaration

1.3 I neligible B idder s

A Bidder that has been sanctioned by the Bank in accordance with the above ITB 6.8, including in accordance with the Bank’s Guidelines on Preventing and Combating Corruption in Projects Financed by IBRD Loans and IDA Credits and Grants (“Anti-Corruption Guidelines”), shall be ineligible to bid for, or to be awarded a Bank-financed contract or benefit from a Bank-financed contract, financially or otherwise, during such period of time as the Bank shall have determined.

1.4 Debarred Firms

The list of debarred firms and individuals is available at the electronic address specified in the BDS.

Page 13: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 25

1.5 Eligible Plant and Equipment and Services

(1) For the purposes of these Bidding Documents, the words “Plant and Equipment” and “Services” shall be construed in accordance with the respective definitions given to them in the Contract.

(2) All Plant and Equipment to be supplied and installed and Services carried out under the Contract may have their origin in any country, as defined in the Guidelines: Procurement of Goods, Works and Non-consulting Services under IBRD Loans and IDA Credits& Grants (January 2011 Edition) (“IBRD Guidelines for Procurement”) and subject to Instructions to Bidders (“ITB”) Section 1.3(3), and all expenditures made under the Contract will be limited to such Plant and Equipment and Services.

(3) In accordance with paragraph 1.10 of the IBRD Guidelines for Procurement, Bidders from an eligible country may be excluded if,

a) as a matter of law or official regulation, the Borrower’s country prohibits commercial relations with that country, provided that the Bank is satisfied that such exclusion does not preclude effective competition for the supply of goods or services required; or

b) by an act of compliance with a decision of the United Nations Security Council taken under Chapter VII of the Charter of the United Nations, the Borrower’s country prohibits any import of goods or contracting of works or services from that country or any payments to persons or entities in that country.

(4) The list of ineligible countries is set out in the Bid Data Sheet.

(5) For purposes of this ITB Section 1.3, “origin” means the place where the Plant and Equipment or component parts thereof are mined, grown, or produced. Plant and Equipment are produced when, through manufacturing, processing or substantial and major assembling of components, a commercially recognized product results that is substantially different in basic characteristics or in purpose or utility from its components.

(6) The origin of the Plant and Equipment and Services is distinct from the nationality of the Bidder.

1.6 Cost of Bidding

The Bidder shall bear all costs associated with the preparation and submission of its bid, and the Owner will in no case be responsible for these costs, regardless of the conduct or outcome of the bidding process.

Page 14: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 25

SE C T I ON 2 - THE BIDDING DOCUMENTS

2.1 Content of Bidding Documents

(1) The nature of the services, the site and the plant that are to be designed, built, operated and maintained by the bidder, the procedures that are to be followed during the bidding process and the contract terms and technical requirements are prescribed in the Bidding Documents. The Bidding Documents consist of:

a) the Invitation for Bids;

b) the Instructions to Bidders (ITB) and Appendix to ITB;

c) the Bid Data Sheet;

d) Annex A to the Bidding Documents – Forms

(i) Bidder’s Bid Form;

(ii) Bidder’s Price Schedules;

(iii) Form of Bid Security;

(iv) Form of Performance Security;

(v) Form of Bank Guarantee – Advance Payment;

(vi) Format of Curriculum Vitae for Proposed Key Staff;

(vii) Form for Clarification Questions; and

(viii) Appendix to Annex A - Information Forms

e) Annex B to the Bidding Documents – the contract (the “Draft Contract”) consisting of:

(i) Form of Contract;

(ii) General Conditions of the Contract; and

(iii) Appendices to the General Conditions, including the,

(A) Special Conditions of Contract;

(B) Technical Specifications;

(C) Site Appendix;

f) Addenda to the documents listed in ITB Section 2.1(a) to (e), if any are issued by the Owner.

Page 15: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 25

(2) The documents listed in ITB Section2.1(a), (b), (c), (d), (e) and (f) are collectively the “Bidding Documents”.

(3) Each Bidder shall examine all instructions, terms and conditions, forms, specifications and other information contained in the Bidding Documents. If the Bidder,

a) fails to provide all documentation and information required by the Bidding Documents; or

b) submits a Bid which is not substantially responsive to the terms and conditions of the Bidding Documents,

Such action is at the Bidder’s risk and the Owner may determine that the Bid is non-responsive to the Bidding Documents and may reject it.

2.2 Clarification of Bidding Documents

(1) A prospective Bidder requiring any clarification of the Bidding Documents may notify the Owner in writing by mail, courier, fax or hand delivery at the Owner’s mailing address indicated in the Bid Data Sheet. Similarly, if a Bidder feels that any important provision in the Bidding Documents, such as those listed in ITB Section 3.3, will be unacceptable, such an issue must be raised during the clarification stage.

(2) All such queries and requests for clarification shall be submitted using the Form for Clarification Questions contained in Annex A to the Bidding Documents.

(3) The Owner will respond in writing to any request for clarification or modification of the Bidding Documents that it receives on the Form for Clarification Questions no later than the date set out in the timetable in the Bid Data Sheet. Written copies of the Owner’s response, including an explanation of the query but not identification of its source, (the “Response to Questions Document”) will be sent to all prospective Bidders that have received the Bidding Documents. If similar or repeated queries are made by Bidders, the Owner may list those queries as one query & respond to such query only once.

2.3 Site Visit

(1) Each Bidder is advised to visit and inspect the site of the proposed Septage Sewerage Treatment facility/area (the “Site Visit”) and its surroundings and obtain for itself on its own responsibility all information that may be necessary for preparing the Bid and entering into the Contract. The Owner will schedule a time on or after the date set out in the timetable specified in the Bid Data Sheet and develop a procedure for Bidders to conduct a Site Visit. The costs of visiting the site shall be at the Bidder’s own expense.

(2) Each Bidder and any of its personnel or agents will be granted permission by the Owner to enter upon its premises and lands for the purpose of such a Site Visit, but only upon the express condition that the Bidder, its personnel and agents will release and indemnify the Owner, the Borrower and their personnel and agents from and against all liability in respect thereof and will be responsible for death or personal injury, loss of or damage to property and any other loss, damage, costs and expenses incurred as a result of the Site Visit.

Page 16: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 25

2.4 Data Room and Background Information

(1) Unless otherwise stated in the Bid Data Sheet, Shillong Municipal Board(Owner) will establish a data room (the “Data Room”) in the Municipal office at Shillong with a collection of relevant data to be accessible to Bidders or their representatives from the date set out in the timetable specified in the Bid Data Sheet until the deadline for submission of Bids (the “Submission Deadline”), in accordance with a schedule established by the Owner.

(2) The Owner may provide prospective Bidders with a separate background information document as may be available with the owner, (the “Background Information Document”) if indicated in the Bid Data Sheet. The Background Information Document is not a Bidding Document.

2.5 Pre-Bid Meeting

Each prospective Bidder is invited to attend a Pre-Bid Meeting, which will take place at the venue and time stipulated in the Bid Data Sheet. While attendance at the pre-bid meeting is not mandatory, Bidders are strongly encouraged to attend. The purpose of the pre-bid meeting is to provide a technical presentation and to clarify issues and answer questions on any matter that may be raised at the meeting. Each prospective Bidder is requested, as far as possible, to submit any question in writing to reach the Owner not later than one week before the pre-bid meeting. It may not be practicable at the meeting to answer questions received late, but questions and responses will be transmitted as indicated hereafter. Minutes of the pre-bid meeting will be transmitted without delay to all prospective Bidders that have been issued Bidding Documents. All responses to questions raised at the pre-bid meeting will be included in the Response to Questions Document. The proceedings of the pre-bid meeting, reply to the queries and corrigendum if any will also be uploaded on the website specified in the Bid Data Sheet

2.6 Amendment of Bidding Documents

(1) At any time prior to the Submission Deadline, the Owner may, for any reason, whether at its own initiative, or in response to a clarification requested by a prospective Bidder, amend the Bidding Documents by addendum. No other communications of any kind whatsoever, including, without limitation, the minutes of the pre-bid meeting or the Response to Questions Document, shall modify the Bidding Documents.

(2) Addenda, if any, will be sent in writing by air mail, courier or facsimile to all prospective Bidders and will be binding on them. Bidders shall immediately acknowledge receipt to the Owner of any such amendment, and it will be assumed that the information contained therein has been taken into account by the Bidder in its Bid. Such Addenda will also be uploaded on the website specified in ITB 2.5.

(3) In order to afford prospective Bidders reasonable time in which to take the amendment into account in preparing their Bids, the Owner may, at its discretion, extend the Submission Deadline, in which case, the Owner will notify all prospective Bidders in writing of the extended deadline.

2.7 Contact with the Owner For the Purpose of Clarification

The prospective Bidders and Bidders shall contact only the persons named at the addresses in the Bid Data Sheet for the purpose of requesting information and clarification or for any other purpose relating to the bidding process. The prospective Bidders and Bidders shall not contact any other person at the Owner during the bidding process. From the time of Bid opening to the time of Contract award, if any Bidder wishes to contact the Owner on any matter related to the bidding process, it may do so in writing.

Page 17: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 25

2.8 Information Provided by the Owner/Bidders Due Diligence

(1) Each Bidder is solely responsible for conducting its own independent research, due diligence, and any other work or investigations and for seeking any other independent advice necessary for the preparation of Bids, negotiation of agreements, and the subsequent delivery of all services to be provided by the Bidder that has been successful in the bidding process (the “Successful Bidder”).The bidder will at its own cost and responsibility, undertake market survey to assess the need and potential to sell the treated effluent to the prospective buyers and in absence of such buyers the method and modus operandi for safe disposal of the treated effluent out flowing from the STP.

(2) No representation or warranty, express or implied, is made and no responsibility of any kind is accepted by the Owner or its advisors, employees, consultants or agents, for the completeness or accuracy of any information contained in the Bidding Documents or the Response to Questions Document, or provided during the bidding process or during the term of the Contract. The Owner and its advisors, employees, consultants and agents shall not be liable to any person or entity as a result of the use of any information contained in the Bidding Documents or the Response to Questions Document, or provided during the bidding process or during the term of the Contract.

(3) Bidders shall not rely on any oral statements made by the Owner or its advisors, employees, consultants or agents.

(4) All Bidders shall, prior to submitting their Bid, review all requirements with respect to corporate registration and all other requirements that apply to companies that wish to conduct business in the Owner’s country. The Bidders are solely responsible for all matters relating to their legal capacity to operate in the jurisdiction to which this bidding process applies.

2.9 Timetable

(1) The estimated timetable, from the issuance of the Bidding Documents to the identification by the Owner of the Successful Bidder and the execution of the Contract, is set out in the Bid Data Sheet.

(2) The Owner may, in its sole discretion and without prior notice to the Bidders, amend the estimated timetable specified in the Bid Data Sheet. Bidders shall not rely in any way whatsoever on the estimated timetable specified in the Bid Data Sheet and the Owner shall not incur any liability whatsoever arising out of amendments to the estimated timetable. The Owner shall give notice of timetable changes, if any, by addenda.

Page 18: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 25

SE C T I ON 3 - PREPARATION OF BIDS

3.1 Language of Bid

The Bid prepared by the Bidder, all correspondence and documents related to the Bid exchanged by the Bidder and the Owner and the bidding process shall be written in the language specified in the Bid Data Sheet, provided that any printed literature furnished by the Bidder may be written in another language, as long as such literature is accompanied by a translation of its pertinent passages in the language specified in the Bid Data Sheet, in which case, for purposes of interpretation of the Bid, the translation shall govern.

3.2 Documents Comprising the Bid

(1) Each Bidder shall submit only one Bid which shall consist of,

a) One Technical Section which contains the following parts in the following order:

(i) Part I – the information required by ITB Section 3.3;

(ii) Part II – the Bid Security required by ITB Section 3.4;

(iii) Part III – the Bid Form required by ITB Section 3.5(1), and the information required by ITB Section 3.5(2);

(iv) Part IV – where applicable, the joint venture documents required by ITB Section 3.6;

(v) Part V – the power of attorney required by ITB Section 3.7;

(vi) Part VI – the declaration of commissions and gratuities required by ITB Section 3.8; and

(iv) Optional, separately bound pre-printed literature; and

b) One Financial Section which shall consist of the Price Schedules completed in accordance with ITB Section 3.10.

(2) Each Bidder shall also submit an initialled Draft Contract, in accordance with ITB Section 3.15(2), in the same envelope as its Technical Section.

(3) The Bid, excluding the initialized Draft Contract submitted in accordance with ITB Section 3.15(2)(c) is recommended not to exceed the number of pages set out in the Bid Data Sheet.

Page 19: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 25

3.3 Technical Section – Part I – Technical and Staffing Information

The bidder, while making his technical proposal shall consider the following aspects.

a. The Owner shall make available the right of way and the land area allocated for this facility for setting up of Sewage Treatment Plant. The bidders will be free to offer STP based on a technology of their choice and indicate in their bid the actual land requirement for setting up treatment facility as offered by them. The status of availability and ownership of the land is specified in the Bid Data Sheet.

b. The location for disposal of treated Sewage and sludge shall be as specified in the Bid Data Sheet.

c. The land that will be required for STP, roads, drains and other appurtenant structures shall be indicated by the bidder and the cost of such Land requirement as determined on the basis of land price specified in the Bid Data Sheet shall be added to the bid price for evaluation of the lowest evaluated substantially responsive bidder.

The Operator shall design and construct the STP with installed capacity as indicated in the Bid Data Sheet clause 1.1(d).

Part-I of the Technical Section of the Bid shall consist of the following sub-parts in the following order:

a) An Executive Summary of the Technical Section;

b) A detailed design-build workplan including a detailed program timetable (the “Design-Build Workplan”) setting out the manner in which the Bidder proposes to carry out the design-build services as defined in the Draft Contract (the “Design-Build Services”) and meet the design-build technical standards in accordance with the Technical Standards Appendix to the General Conditions. The Design-Build Workplan shall be divided into the following sections:

(i) A well-defined proposal for the treatment process technology proposed by the bidder. The owner will make available the land required for the STP and ancillary works. The bidders design should aim at optimizing the land requirement.

(ii) a section entitled “Drawings” which consists of conceptual drawings that are sufficiently detailed to communicate the Bidder’s design intent for all components of the proposed Sewage Treatment Plant and allied services. The conceptual drawings shall include the following:

(A) a site plan showing the location of the STP area and limits to the bidders construction activities;along with the land required for the total planned area for STP

(B) a site plan showing all proposed works listed in the Bid Data Sheet;

Page 20: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 25

(C) The bidder’s proposed approach and methodology on the disposal of the treated effluent including its reuse for land irrigation and / or industrial and commercial purposes.

(D) a detailed narrative in support of the conceptual drawings setting out the Bidder’s plan for compliance with the Design-Build Services Appendix and the technical standards set out in the Technical Standards Appendix, to include construction quality assurance and control;

(E) a detailed program and schedule setting out the proposed sequence of works to be undertaken, including estimated start date, finish date and time allocations for individual units of the works, proposed resources to be allocated and the identification of all major milestones, including the submission of schematic design documents, design development documents, the Design-Build Documents and the commissioning of individual units of the Sewage Treatment Plant (STP); and

(F) An itemized list of the principal codes of practice and standards proposed to be used for the Design-Build Services; and

A section specifying the power consumption for Operations and Maintenance of the STP on an annual basis. The Bidder shall further provide the breakup of electricity consumption in various facilities in the STP on an annual basis. The Bidder shall provide the total estimated consumption.connected load in KW, maximum power demand, average energy consumption In KwH per day with full load up to the installed capacity of the STP, estimated power factor, any proposals for improving efficiency in terms of lower power consumption

(iii) a section entitled “Plant and Equipment and Operator’s Equipment” which consists of a list of proposed suppliers of major Plant and Equipment and Operator’s Equipment (Design-Build) and Operator’s Equipment (Operations), including:

(A) plant and equipment;

(B) materials, including pipework and principal construction materials.

For all items listed in ITB Section 3.3(b)(ii), the Bidders shall provide either catalogues or detailed information with respect to manufacturer and source, model designation, primary specifications, and year of manufacture, as applicable;

(a) A detailed workplan (the “Operations Workplan”) setting out the manner in which the Bidder proposes to carry out the operation of the Sewerage Treatment facility as set out in the Draft Contract (the “Operations Services”) and meet the operating technical standards in accordance with the Technical Standards Appendix to the General Conditions. The Operations Workplan shall be divided into the following sections:

(i) a section entitled “Operations Start-up” which provides an outline contents and overview of the Bidder’s proposed plans and programs for operational start-up of the STP; and

Page 21: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 25

(ii) a section entitled “Operationand Maintenance Plan” which provides an outline contents and overview of the Bidder’s proposed plans and programs for STP operation, including the items listed in the Bid Data Sheet;

(b) A detailed description of the Bidder’s plans and methodologies to ensure that the requirements of the applicable Environmental Management Plan for the proposed Plant and allied services at Site will be implemented and monitored;

(c) A detailed staffing plan (the “Staffing Plan”) setting out the Bidder’s proposed staffing arrangements for the carrying out of the Design-Build and Operations Services. The Staffing Plan shall be divided into the following sections:

(i) two sub-sections, (one for the Design-Build Services and one for the Operations Services) each entitled the “Staffing Chart” and each consisting of a chart setting out a list of all proposed Operator’s Personnel positions, the role of each position, the duration of existence of the position, and the location of the staff person filling the position during the periods of assignment to carry out the Design-Build and Operations Services;

(ii) a section entitled “Summary of Staff Qualifications” which consists of a summary table setting out,

(A) for the Key Staff positions, the names of the Bidder’s employees who will occupy the Key Staff positions; and

(B) all proposed positions for the Bidder 'Personnel and the qualifications, years of experience and areas of expertise, including a clear indication of the expertise that the staff will provide consistent with the requirements set out in the Operator’s Expertise Appendix of the Draft Contract, for each of the proposed positions; and

(iii) a section entitled, “Curriculum Vitae” which contains the signed curriculum vitae for each of the Key Staff, in the format set out in Annex - A to the Bidding Documents;

a) For the purpose of ITB Section 3.3(e)(ii)(A) and (iii), “Key Staff” means those individuals that will fill the positions listed in the Bid Data Sheet; and

b) A list of all nominated subcontractors and sub-consultants and a detailed description of the services to be carried out or the Plant and Equipment to be provided by the nominated subcontractors and sub-consultants. The Bidder shall provide the name and nationality of all nominated subcontractors and sub-consultants. The Bidder shall ensure that all nominated subcontractors and subconsultants comply with ITB Section 1.3. The Bidder shall not exceed the maximum percentage of subcontracting and subconsulting set out in GC Section 8.6(1) of the Draft Contract.

Page 22: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 25

3.4 Technical Section – Part II – Bid Security

(I) In Part II of the Technical Section of its Bid, the Bidder shall furnish, as part of its Bid, a Bid security in the amount and currency stipulated in the Bid Data Sheet. The bid security of a Joint Venture must define as “Bidder” all Joint Venture Partners and list them in the following manner

“a Joint Venture consisting of ‘.......’, ‘..........’ and ‘............’.

(II) The Bid Security shall, at the Bidder’s option, be in the form of a certified cheque, but only if the certified cheque shows a validity date, letter of credit or a bank guarantee from a reputable bank or insurance company selected by the Bidder and located in any eligible country. If the institution issuing the security is located outside the country of the Borrower, it shall have a correspondent financial institution located in the country of the Borrower to make it enforceable. The format of any bank guarantee provided by a Bidder shall be in accordance with the form of Bid Security contained in Annex A to the Bidding Documents. The Bidder shall ensure that the Bid Security remains valid for a period of 30 days after the end of the original Bid Validity Period, as defined in ITB Section 3.14(1), and 30 days after any extension subsequently requested by the Owner in accordance with ITB Section 3.14(2).

(III) Any Bid not accompanied by an acceptable Bid Security shall be rejected by the Owner as being non-responsive. The Bid Security of a joint venture must be in the name of all of the participants in the joint venture submitting the Bid.

(IV) The Owner will return the Bid Securities of the unsuccessful Bidders as promptly as possible, but not later than 45 days after the expiration of the Bid Validity Period.

(V) The Bid Security of the Successful Bidder will be returned when the Bidder has signed the Form of Contract pursuant to ITB Section 6.4 and has provided the required performance security as set out in the Contract and ITB Section 6.5.

(VI) The Bid Security may, in the discretion of the Owner, be forfeited,

a) if the Bidder withdraws its Bid during the Bid Validity Period; or

b) in the case of the Successful Bidder, if the Successful Bidder fails within the specified time limit,

(i) to execute the Form of Contract in accordance with ITB Section 6.4; or

(ii) to furnish the performance security to the Owner in accordance with ITB Section 6.5.

3.5 Technical Section – Part III – Bid Form and Qualification Information

(1) In Part III of the Technical Section of its Bid, each Bidder shall provide a completed Bid Form in the same form and substance as the Bid Form contained in Annex A to the Bidding Documents.

(2) In Part III of the Technical Section of its Bid, Bidders shall submit Information Forms duly completed to evidence compliance with the Qualification Criteria provided in the Appendix to ITB. The Information Forms are provided in the Annex A to the Bidding Documents.

Page 23: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 13 of 25

3.6 Technical Section – Part IV - Joint Venture Documents and Requirements

(1) Each Joint Venture Bidder shall submit, as Part IV of the Technical Section of its Bid, a written commitment, in the form of a letter duly executed by an authorized officer of each joint venture participant, which,

a) confirms each joint venture participant’s commitment to the joint venture and acceptance of the joint venture arrangements described in the Bid in accordance with ITB Section 3.6(2);

b) confirms each joint venture participant’s willingness to provide a joint and several guarantee to the Owner to underwrite the performance of the joint venture in respect of the Contract; and

c) Identifies which joint venture participant,

(i) will assume the leading role on behalf of the other joint venture participants; and

(ii) will have the authority to commit all joint venture participants.

(2) If the Successful Bidder is a Joint Venture Bidder and the Contract is awarded to the Successful Bidder each member of the joint venture consortium shall sign and execute the contract with the owner and shall be jointly and severely responsible to owner for the performance of the contract at the time of bid submission. The bidder will provide a signed, sealed and notarized joint venture consortium agreement specifying the roles, responsibility, and financial stake of each members of the JV. .

(3) If the Contract is executed between the Owner and a Joint Venture Consortium, a performance security, in the amount and in the same form and substance as set out in ITB Section 6.5, will be required from the Joint Venture Consortium. The shareholders of the Joint Venture Consortium and the shareholders’ parent companies may, in the sole discretion of the Owner, be required to submit performance securities in the same form and substance as set out in ITB Section 6.5, which shall be in addition to the performance security of the Joint Venture Consortium. The Joint Venture Consortium, the shareholders of the Joint Venture Consortium and the shareholders’ parent companies shall be jointly and severally liable for the execution of the Contract in accordance with the Contract terms and conditions. The Owner may, in its sole discretion, also require the shareholders or the parent companies of the shareholders, or both, to be parties to the Contract and to retain equity in the Joint Venture Consortium at a level specified in the Contract.

(4) A copy of the Joint Venture Agreement entered into by the Partners (JV Participants) shall be submitted with the bid. Alternatively, a Letter of Intent as per format provided under Annexure A – Part K to execute a Joint Venture Agreement in the event of a successful bid shall be signed by all partners and submitted with the bid together with a copy of the proposed Agreement, clearly indicating the objectives of the joint venture, the proposed management structure, the contribution of each participant to the joint venture operations, the commitment of the participants to joint and several liability for performance of the contract, recourse or sanctions within the joint venture in the event of default or withdrawal of any participant, and arrangements for providing the required indemnities

3.7 Technical Section – Part V – Power of Attorney

Each Bidder shall provide, as Part V of the Technical Section of its Bid, a written power of attorney in accordance with ITB Section 3.15(3).

Page 24: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 14 of 25

3.8 Technical Section – Part VI – Commissions and Gratuities

In Part VI of the Technical Section of its Bid, each Bidder shall provide detailed information listing all commissions and gratuities, if any, paid or to be paid by the Bidder to agents relating to this Bid or the Contract if the Bidder is awarded the Contract. The Bidder shall list the name and address of any agents, the amount and currency paid or to be paid to the agents and the purpose of the commission or gratuity. If no such commissions and gratuities have been paid, the Bidder shall provide this information in Part VI of the Technical Section of its Bid.

3.9 Technical Section – Part VII – Pre-Printed Literature

If the Bidder wishes to provide pre-printed literature about the Bidder or the joint venture participants, that pre-printed literature shall be contained in Part VII of the Technical Section of the Bid only and shall be separately bound.

3.10 Financial Section – Price Schedules

Each Bidder shall submit completed and properly executed Price Schedules in the forms contained in Annex A to the Bidding Documents. Bidders shall complete the Price Schedules in full and shall not amend or change the form in any way. The Financial Section of each Bidder’s Bid shall consist of only completed and properly executed Price Schedules.

3.11 Financial Section – Bid Prices

(1) Bidders shall quote their total cost / premium for design and setting up the Sewage Treatment Plantand cost / premium of operation and maintenance of the STP for a post commissioning period of 15 years as annuity payments. on a “single responsibility” basis such that the total Bid Price covers all of the bidder’s obligations mentioned in or to be reasonably inferred from the Bidding Documents in respect of the design, construction, commissioning, operation and maintenance including procurement etc, and if any delivery, construction, installation and completion of the Plant and the performance of the Services as set out in the Draft Contract. This includes all requirements under the Bidder’s responsibilities for testing, pre-commissioning and commissioning of the Sewage Treatment Plant, the acquisition of all permits, approvals and licences, the design, building, operation, maintenance and training services, and such other items and services as may be specified in the Bidding Documents, all in accordance with the requirements of the General Conditions of the Contract.

(2) For the purpose of submitting Bids, Bidders should note that the Bid Price shall include all kinds of taxes, duties, levies or charges of the Owner’s country in accordance with the Contract. However, the bidder may take into consideration any tax / duty exemptions, reductions or privileges that may be available to him in the owner’s country. The owner, at the request, of the bidder provide the required certification to avail such benefits. However, if the bidder fails to get the benefit of exemption, the owner shall not be responsible in any manner and shall not make any extra payment to the bidder. The Bid Price shall not take into account any tax exemptions, reductions or privileges that may be available to the Bidder in the Owner’s country

(3) In the Price Schedules, Bidders shall give the required details and a breakdown of their prices as follows:

(a) Total cost / premium for design and setting up of the STP up to commissioning and cost plus premium for the post commissioning operation and maintenance for 5 years and shall include

Page 25: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 15 of 25

a fixed price for all labour, construction, (Design-Build), temporary works, energy cost, consumables and all matters and things of whatsoever nature, including preparation of the Design-Build Documents and carrying out construction, as necessary for the proper execution& commissioning of the Design-Build Services in accordance with the Contract; and

(b) Operations services shall be quoted separately as Part B for Operation and Maintenance of STPfor5years from end of defects liability period and shall include a fixed price for all labour, and variable price for energy cost to run the plant, maintenance of Equipment, all consumables and all matters and things of whatever nature, including the preparation and implementation of plans, programs and reports, and carrying out operations &maintenance services, training, customer service and financial management services, as necessary for the proper execution of the Operations Services in accordance with the Contract.

• The cost of Design, procurement, construction, testing, trial run, commissioning and Operation & Maintenance of STP up to Defect liability period of 1 (one) year (including, power cost, labour and consumables shall be quoted by bidder under Part A.

• The bidder has to Operate and maintain the Plant for next 5years after DLP for which the entire cost of power, labour, consumables, maintenance of all civil, mechanical and electrical units shall be borne by the bidder and shall quote his price under Part B. The bidder shall meetthe expensesagainst subsequent O & M of STP by way of generating revenue through Sale of treated water. The Employer shall give rights for the bidder for use and sale of treated water from the Sewage treatment plant.

(4) Prices quoted by the Bidder shall be fixed during the Bidder’s performance of the Contract and shall not be subject to change on any account, except in accordance with the price adjustment provisions if set out in the Contract. A Bid submitted with an adjustable price quotation shall be treated as non-responsive and shall be rejected. Except for discounts provided as modifications to the Bid in accordance with ITB Section 4.4, discounts will not be considered.

(5) Bidders are strongly encouraged to review GC Section 5.6 and the Terms and Procedures of Payment Appendix prior to completing their Price Schedules and submitting their Bid Prices.

3.12 Financial Section – Bid Currencies

Bidders may quote their price in Indian Rupees only

3.13 Bidding of Alternatives Not to be Considered

(1) The Bidders shall base their Bids on the terms and conditions of the Bidding Documents and, without limiting the generality of the foregoing, shall,

a) Submit their prices based on the terms and conditions in the Bidding Documents;

b) submit their Bids based on the assumption that the final Contract will be the same as the Draft Contract and shall not base their Bids on the premise that they may be able to change the Draft Contract; and

c) Include in their Bids a Form of Contract and Draft Contract initialled on each page in accordance with ITB Section 3.15(2)(c).

Page 26: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 16 of 25

(2) No Bidder shall submit a Bid that contains statements that are inconsistent with the Bidding Documents.

(3) A Bidder shall not submit a Bid that proposes an arrangement between the Owner and the Bidder which, in the discretion of the Owner, is different than the arrangement set out in the Bidding Documents (an “Alternative Bid”). The Owner intends to enter into a contract to design, build and operate a Sewage Treatment facility based on the terms and conditions of the Bidding Documents. If a Bidder submits an Alternative Bid it will be returned to the Bidder and will not be considered, in any way, by the Owner.

3.14 Period of Validity of Bid

(1) Bids shall remain valid for the period named in the Bid Data Sheet after the Submission Deadline or any extension thereof prescribed by the Owner for the receipt of Bids, pursuant to ITB Section 3.14(2) (the “Bid Validity Period”). A Bid valid for a shorter period shall be rejected by the Owner as being non-responsive.

(2) In exceptional circumstances, the Owner may solicit the Bidders’ consent to an extension of the Bid Validity Period. The request and responses thereto shall be made in writing and sent by air mail, courier or fax. If a Bidder accepts to prolong the Bid Validity Period, the Bid Security shall also be suitably extended. A Bidder may refuse the request without forfeiting its Bid Security. A Bidder granting the request will not be required nor permitted to modify its Bid, except as provided in ITB Section 4.4.

3.15 Format and Signing of Bid

(1) Each Bidder shall prepare and submit one signed and initialled original of its Bid and the number of copies of the Bid as set out in the Bid Data Sheet, clearly marking one each as “Original Bid”, “Copy No. 1”, or “Copy No. 2”, etc. as appropriate. In the event of any discrepancy between the copies and the original, the original shall govern.

(2) The original and all copies of the Bid, each consisting of the documents listed in ITB Section 3.2, shall be typed or written in indelible ink. The person or persons duly authorized to bind the Bidder to the Bid and Contract shall sign the Bid by,

a) signing the original of the Bid Form;

b) initialling all of the pages of the original of the Bid, except for unamended printed literature; and

c) initialling the Form of Contract and initialling all pages of the Draft Contract.

(3) The authority of the person or persons signing the Bid to bind the Bidder shall be demonstrated by a written and duly notarized power of attorney included in the Bid and submitted as Part V of the Technical Section of the Bid and which shall bind the Bidder for the full length of the Bid Validity Period.

(4) The Bid shall contain no alterations, omissions or additions, unless such corrections are initialled by the person or persons signing the Bid.

Page 27: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 17 of 25

SE C T I ON 4 - SUBMISSION OF BIDS

4.1 Sealing and Marking of Bids

(1) Each Bidder shall seal the original and each copy of the Bid in separate envelopes, duly marking the envelopes as “Original Bid” and “CopyNo (Three Numbers)”. The envelopes shall then be sealed in an outer envelope.

(2) The inner and outer envelopes shall,

a) be addressed to the Owner at the address specified in the Bid Data Sheet; and

b) bear the Contract name indicated in the Bid Data Sheet and the statement “DO NOT OPEN BEFORE 23-05-2017at 1400 hrs.”, with the date and time specified in the Bid Data Sheet pursuant to ITB Section 5.1.

(3) The inner envelopes shall indicate the name and address of the Bidder so that the Bid can be returned unopened in the event that it is declared “late”.

(4) If the outer envelope or package is not sealed and marked as required by this ITB Section 4.1, the Owner will assume no responsibility for the Bid’s misplacement or premature opening. If any of the outer envelope or package discloses the Bidder’s identity, the Owner will not guarantee the anonymity of the Bid but this disclosure shall not constitute grounds for Bid rejection.

4.2 Deadline for Submission of Bids

(1) Bids must be received by the Owner at the address specified in the Bid Data Sheet no later than the time and date stated in the Bid Data Sheet as the Submission Deadline.

(2) The Owner may, at its discretion, extend the Submission Deadline by amending the Bidding Documents in accordance with ITB Sections 2.6 and 2.9(2), in which case all rights and obligations of Owner and Bidders will thereafter be subject to the Submission Deadline as extended.

(3) Each Bidder shall deliver its Bid by hand or by courier. A Bidder shall not submit a Bid by facsimile or electronic means. Each Bidder shall be responsible for the timely delivery of its Bid to the address set out in the Bid Data Sheet irrespective of any delivery or local difficulties.

4.3 Late Bids

Any Bid received by the Owner after the Submission Deadline prescribed by the Owner, pursuant to ITB Section 4.2, will be rejected and returned unopened to the Bidder.

4.4 Modification and Withdrawal of Bids

(1) The Bidder is not permitted to modify or withdraw its Bid after submission, and shall remain unaltered and valid up to the closure of bid validity period.

(2) No Bid may be modified or withdrawn in the interval between the Bid Submission and the expiration of the Bid Validity Period. Withdrawal of a Bid during this interval may result in the Bidder’s forfeiture of its Bid Security, pursuant to ITB Section 3.4(6).

Page 28: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 18 of 25

SE C T I ON 5 - BID OPENING AND EVALUATION

5.1 Opening of Bid by Owner

(1) The Owner shall open the Bidsthat were submitted prior to the Submission Deadline,

a) in the presence of the Bidders’ representatives who choose to attend the opening; and

b) at the time, date and location specified in the Bid Data Sheet.

Bidders’ representatives who attend the opening of the Bids shall sign a register to record their attendance.

(2) At the Bid opening, the Owner will announce,

a) the Bidders’ names;

b) the presence, or absence, of Bid Security;

c) the Bidders’ Bid Prices; and

d) any other details as the Owner may consider appropriate.

The Owner shall not reject any Bid at a Bid opening except for late Bids in accordance with ITB Section 4.3.

(3) The Owner shall prepare minutes of the Bid opening including the information disclosed to those present in accordance with ITB Sections 5.1(2) and 5.1(3).

(4) Bids not opened and read out at a Bid opening shall not be considered further for evaluation, irrespective of the circumstances.

5.2 Clarification of Bids

During Bid evaluation, the Owner may, at its discretion, ask the Bidder for a clarification of its Bid. The request for clarification and the response shall be in writing, and no change in the price or substance of the Bid shall be sought, offered or permitted.

5.3 Preliminary Examination of Bids

(1) The Owner will examine each Bid to determine whether it is complete, whether any computational errors have been made, whether required securities have been furnished, whether the documents have been properly signed, and whether the Bid is generally in order.

(2) Arithmetical errors in the Bids will be rectified on the following basis:

a) If there is a discrepancy between subtotals and the total price, the unit or subtotal price shall prevail, and the total price shall be corrected; and

b) If there is a discrepancy between words and figures, the amount in words shall prevail.

If the Bidder does not accept the correction of arithmetical errors, its Bid shall be rejected.

(3) The Owner may waive any minor informality, nonconformity or irregularity in a Bid that does not constitute a material deviation, and that does not prejudice or affect the relative ranking of any Bidder as a result of the technical and price evaluation pursuant to ITB Sections 5.5 and 5.6.

Page 29: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 19 of 25

(4) Prior to the detailed evaluation, the Owner will determine whether each Bid is of acceptable quality, is complete and is substantially responsive to the Bidding Documents. For purposes of this determination, a substantially responsive Bid is one that conforms to all the terms, conditions and specifications of the Bidding Documents without material deviations, objections, conditionalities or reservations. A material deviation, objection, conditionality or reservation is one,

a) that affects in any substantial way the scope, quality or performance of the contract;

b) that limits in any substantial way, inconsistent with the Bidding documents, the Owner’s rights or the Successful Bidder’s obligations under the contract; or

c) whose rectification would unfairly affect the competitive position of other Bidders who are presenting substantially responsive Bids.

(5) If a Bid is not substantially responsive, it will be rejected by the Owner, and may not subsequently be made responsive by the Bidder by correction of the nonconformity. The Owner’s determination of a Bid’s responsiveness is to be based on the contents of the Bid itself without recourse to extrinsic evidence.

5.4 Conversion to Single Currency

(1) To facilitate evaluation and comparison, the Owner will convert all Bid Prices expressed in the amounts in various currencies in which the Bid Price is payable to either,

a) the currency of the Owner’s country at the selling exchange rate established for similar transactions by the central bank or by a commercial bank in the Owner’s country; or

b) a currency widely used in international trade, such as U.S. dollars, at the selling rate of exchange published in the international press for the amount payable in foreign currency, and at the selling exchange rate established for similar transactions by the central bank in the Owner’s country for the amount payable in the currency of the Owner’s country.

(2) The currency selected for converting Bid Prices to a common base for the purpose of evaluation, along with the source and date of the exchange rate, is specified in the Bid Data Sheet.

5.5 Technical Evaluation

(1) The Owner will carry out a detailed evaluation of the Technical Sections previously determined to be substantially responsive in order to determine on a pass/fail basis whether the technical aspects are in accordance with the requirements set forth in the Bidding Documents. Bidders acknowledge that, in order to reach such a determination, the Owner will examine and analyse the technical aspects of each Bid on the basis of the information supplied by Bidders, taking into account the completeness, consistency and level of detail of the following factors:

a) With respect to the Design-Build constructionplan,

(i) The Bidder’s ability to demonstrate how it will meet the Owner’s project objective and requirements, the technical standards and the Environmental Management Plan; and

(ii) The soundness of the proposed methodology and approach, and the extent to which the Design-Build Workplan demonstrates an understanding of the local conditions and specific project requirements;

Page 30: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 20 of 25

b) With respect to the Operation and maintenance Work plan

(i) The extent to which the Operations Work plan addresses all of the Operations Services that are to be provided in accordance with the Contract;

(ii) The soundness of the proposed methodology and approach, and the extent to which the Operations Workplan demonstrates an understanding of the local conditions and specific project requirements; and

(iii) the Bidder’s ability to demonstrate how it will meet the technical standards; and

c) with respect to the Staffing Plan,

i. the qualifications and competence of the Key Staff; and

ii. the overall quality of the Staffing Plan, including the depth and organisational strength demonstrated by the Plan and the extent to which it meets the expertise requirements set out in the Operator’s Expertise Appendix of the Draft Contract.

(2) For the purpose of ITB Section 5.5(1)(c)(ii), the evaluation of the overall quality of the Staffing Plan shall be based on,

a) The clarity, comprehensiveness and level of detail of the Staffing Plan;

b) The extent to which the expertise required by the Bidder’s Expertise Appendix of the Contract is included in the Staffing Plan; and

c) The extent to which the Staffing Plan addresses the specific Services that are required by the Design-Build and Operations Services Appendices to the General Conditions.

5.6 Price Evaluation and Comparison of Bids

(1) The Owner shall examine each Bidder’s Financial Section to determine whether such Financial Section is complete and substantially responsive to the Bidding Documents.

(2) The Financial Sections, which are substantially responsive to the Bidding Documents, shall be evaluated to determine the lowest evaluated bid.

(3) The Owner shallevaluate the bid prices (after conversion of the quoted prices to a single currency in accordance with Section 5.4) by determining and adding various components of cost and prices as under:

(i) Price adjustment for correction of arithmetic errors in accordance with Section 5.3(2); plus

(ii) 100 % of the price for Construction of STP including O & M cost during defects liability period( 1 years)as quoted by the bidder in the Price Schedule 1(Part A) shall be paid by the Employer progressively till the Plant has been commissioned successfully and a certificate to this effect has been issued by the Owner); plus

(iii) Net Present Value of the Yearly payments for the Operation Services as quoted in price

schedule 1 (Part B) payable over a period of 5years (with effect from the date of commissioning of the STP/acceptance and after defects liability period) discounted at the rate of 12% per annum to the scheduled date of commencement of such operation (i.e. date following the completion period allowed as per contract for commissioning and acceptance of the facility after DLP); plus

Page 31: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 21 of 25

(iv) Net Present Value of the Lease charges for 5 years as applied to the excess area of the land

required by the bidder (for setting up the STP) in comparison with the lowest land area requirement (for setting up the STP) quoted by any of the bidders which submit the bids, which shall be determined as under:

Lease charges on the excess land requirement of the bidder = (Annual lease charges @ Rs.

10,00,000/- per Ha) x (land requirement in Ha quoted by the bidder – the lowest land requirement in Ha quoted by any of the participating bidders). The series of such Lease charges over the operation period of 5 years shall be discounted at the rate of 12% per annum to determine the Net Present Value as on the date of commencement of operation of the STP. The Annual Lease charges shall be escalated at a rate of five (5) percent per annum for the purpose of evaluation only.

(4) The estimated effect of the price adjustment provisions of the Conditions of Contract (and Appendix

to the Draft Contract), applied over the period of execution of the Contract, shall not be taken into account in bid evaluation.

(5) The Owner shall compare the evaluated prices of all substantially responsive bids to determine the lowest evaluated bid.

5.7 Qualification of the Bidder

5.7.1 The Owner shall determine to its satisfaction whether the Bidder that is selected as having submitted the lowest evaluated and substantially responsive bid meets the Qualification Criteria specified in Appendix to ITB.

5.7.2 The determination shall be based upon an examination of the documentary evidence of the Bidder’s qualifications submitted by the Bidder, pursuant to Section 3.5 (2).

5.7.3 An affirmative determination shall be a prerequisite for award of the Contract to the Bidder. A negative determination shall result in disqualification of the bid, in which event the Owner shall proceed to the next lowest evaluated bid to make a similar determination of that Bidder’s qualifications to perform satisfactorily.

5.8 Contacting the Owner

(1) From the time of bid opening to the time of Contract award, if any Bidder wishes to contact the Owner, it must do so in writing.

(2) Any effort by a Bidder to influence the Owner, its advisors, employees, consultants or agents, in the Owner’s Bid evaluation, Bid comparison, or Contract award decision may, in the discretion of the Owner, result in rejection of the Bidder’s Bid.

Page 32: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 22 of 25

SE C T I ON 6 - AWARD OF CONTRACT

6.1 Award Criteria

Subject to ITB Section 6.2, the Owner will award the Contract to the Bidder whose Bid has been determined, by the technical and price evaluation, to be substantially responsive, has received a “pass” in the technical evaluation, and has the lowest evaluated Bid Price, provided further that the bidder is determined to be qualified to perform the contract satisfactorily.

6.2 Owner’s Right to Accept or Reject and Waive Irregularities

(1) The Owner reserves the right to,

a) accept any Bid;

b) reject any Bid;

c) annul the bidding process and reject all Bids;

d) annul the bidding process and commence a new process; and

e) waive irregularities, minor informalities, or minor non-conformities which do not constitute material deviations in the submitted Bids from the Bidding Documents,

at any time prior to the award of the Contract without incurring any liability to the affected Bidder or Bidders and without any obligation to inform the affected Bidder or Bidders of the grounds for the Owner’s actions.

(2) Nothing in ITB Section 6.2(1) is intended to permit the Owner to refuse to provide reasons for rejection to an unsuccessful Bidder.

6.3 Notification of Award

Prior to the expiration of the Bid Validity Period, the Owner shall notify the Successful Bidder in writing by courier that its Bid has been accepted by the Owner (the “Notification of Award”). The effectiveness of the Contract shall be as of the date of the Owner’s signing of the Contract contingent on final approval by the Competitive Authority.

6.4 Signing the Form of Contract

(1) At the same time as the Owner sends the Successful Bidder the Notification of Award, the Owner shall send the Successful Bidder,

a) a Form of Contract; and

b) the other Contract Documents.

(2) No later than 30 days after the Successful Bidder’s receipt of the Notification Award, the Form of Contract and the other Contract Documents pursuant to ITB Sections 6.3 and 6.4(1), the Successful Bidder shall sign and date the Form of Contract and initial each page of the Contract and return them to the Owner.

Page 33: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 23 of 25

6.5 Performance Security

No later than 30 days after the Successful Bidder’s receipt of the Notification of Award, the Successful Bidder shall provide the Owner with the performance security in the amount given in the Bid Data Sheet and in the substance and form set out in Annex A or in another form approved by the Owner.

6.6 Failure to Sign the Form of Contract or Provide the Performance Security

If the Successful Bidder fails to comply with the provisions of ITB Sections 6.4(2) or 6.5, this failure shall constitute sufficient grounds for annulment of the award and forfeiture of the Bid Security, and in which event the Owner may make the award to the next lowest evaluated Bidder or call for new bids.

6.7 Adjudicator

The Owner proposes that the person named in the Bid Data Sheet be appointed as Adjudicator under the contract, at an hourly fee stated in the Bid Data Sheet. A résumé of the named person is attached to the Bid Data Sheet, as well as a description of the expenses that would be considered reimbursable. If a Bidder does not accept the Adjudicator proposed by the Owner, it should so state in its Bid Form and make a counterproposal of an Adjudicator and an hourly fee. If, on the day the Form of Contract is signed, the Owner and the Operator have not agreed on the appointment of the Adjudicator, the Adjudicator shall be appointed, at the request of either party, by the Appointing Authority specified in the Special Conditions of Contract.

6.8 Fraud and Corruption

It is the Bank’s policy to require that Borrowers (including beneficiaries of Bank loans), bidders, suppliers, contractors and their agents (whether declared or not), sub-contractors, sub-consultants, service providers or suppliers, and any personnel thereof, observe the highest standard of ethics during the procurement and execution of Bank-financed contracts.1

(a) defines, for the purposes of this provision, the terms set forth below as follows:

In pursuance of this policy, the Bank:

(i) “corrupt practice” is the offering, giving, receiving, or soliciting, directly or indirectly,

of anything of value to influence improperly the actions of another party;2

(ii) “fraudulent practice” is any act or omission, including a misrepresentation, that knowingly or recklessly misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid an obligation;

;

3

1In this context, any action to influence the procurement process or contract execution for undue advantage is improper.

2For the purpose of this sub-paragraph, “another party” refers to a public official acting in relation to the procurement process or contract execution. In this context, “public official” includes World Bank staff and employees of other organizations taking or reviewing procurement decisions.

3For the purpose of this sub-paragraph, “party” refers to a public official; the terms “benefit” and “obligation” relate to the procurement process or contract execution; and the “act or omission” is intended to influence the procurement process or contract execution.

Page 34: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 24 of 25

(iii) “collusive practice” is an arrangement between two or more parties designed to achieve an improper purpose, including to influence improperly the actions of another party;4

(iv) “coercive practice” is impairing or harming, or threatening to impair or harm, directly or indirectly, any party or the property of the party to influence improperly the actions of a party;

5

(v) "obstructive practice" is

(a) deliberately destroying, falsifying, altering, or concealing of evidence material to the investigation or making false statements to investigators in order to materially impede a Bank investigation into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or threatening, harassing or intimidating any party to prevent it from disclosing its knowledge of matters relevant to the investigation or from pursuing the investigation, or

(b) acts intended to materially impede the exercise of the Bank’s inspection and audit rights provided for under paragraph 1.16(e) below.

(b) will reject a proposal for award if it determines that the bidder recommended for award, or any of its personnel, or its agents, or its sub-consultants, sub-contractors, service providers, suppliers and/or their employees, has, directly or indirectly, engaged in corrupt, fraudulent, collusive, coercive, or obstructive practices in competing for the contract in question;

(c) will declare mis procurement and cancel the portion of the loan allocated to a contract if it determines at any time that representatives of the Borrower or of a recipient of any part of the proceeds of the loan engaged in corrupt, fraudulent, collusive, coercive, or obstructive practices during the procurement or the implementation of the contract in question, without the Borrower having taken timely and appropriate action satisfactory to the Bank to address such practices when they occur, including by failing to inform the Bank in a timely manner at the time they knew of the practices;

(d) will sanction a firm or individual, at any time, in accordance with the prevailing Bank’s sanctions procedures,6 including by publicly declaring such firm or individual ineligible, either indefinitely or for a stated period of time: (i) to be awarded a Bank-financed contract; and (ii) to be a nominated7

4For the purpose of this sub-paragraph, “parties” refers to participants in the procurement process (including public officials) attempting either themselves, or through another person or entity not participating in the procurement or selection process, to simulate competition or to establish bid prices at artificial, non-competitive levels, or are privy to each other’s bid prices or other conditions.

; sub-contractor, consultant, manufacturer

5For the purpose of this sub-paragraph, “party” refers to a participant in the procurement process or contract execution

6A firm or individual may be declared ineligible to be awarded a Bank financed contract upon: (i) completion of the Bank’s sanctions proceedings as per its sanctions procedures, including, inter alia, cross-debarment as agreed with other International Financial Institutions, including Multilateral Development Banks, and through the application the World Bank Group corporate administrative procurement sanctions procedures for fraud and corruption; and (ii) as a result of temporary suspension or early temporary suspension in connection with an ongoing sanctions proceeding. See footnote 14 and paragraph 8 of Appendix 1 of these Guidelines. 7A nominated sub-contractor, consultant, manufacturer or supplier, or service provider (different names are used depending on the particular bidding document) is one which has either been: (i) included by the bidder in its pre-qualification application or bid because it brings specific and critical experience and know-how that allow the bidder to meet the qualification requirements for the particular bid; or (ii) appointed by the Borrower.

Page 35: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 25 of 25

or supplier, or service provider of an otherwise eligible firm being awarded a Bank-financed contract;

(e) will require that a clause be included in bidding documents and in contracts financed by a Bank loan, requiring bidders, suppliers and contractors, and their sub-contractors, agents, personnel, consultants, service providers, or suppliers, to permit the Bank to inspect all accounts, records, and other documents relating to the submission of bids and contract performance, and to have them audited by auditors appointed

Page 36: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 12

Bid Data Sheet

The following bid-specific data for the facility and services to be procured shall amend or supplement the provisions in the Instructions to Bidders (ITB). Whenever there is a conflict, the provisions herein shall prevail over those in the ITB.

ITB SECTION REFERENCE

REQUIRED INFORMATION

ITB 1.1(1) (1) Name of the Borrower: Government of Meghalaya

ITB 1.1(1) Name of Contract: Design, Build, Operate and Maintain 115m3/day Capacity Septage waste /Sewage Treatment Plant at Shillong on DBOT basis including 5 years post commissioning Operation & Maintenance on sustainable mode

ITB 1.1(1), 1.2 Name of Owner: Chief Executive officer, Shillong Municipal Board ITB 1.2.2 The electronic address of firms and individuals debarred by the Bank is:

http://www.worldbank.org/debarr. ITB 1.3(4) List of Ineligible Countries: Nil

ITB 2.2(1) Address of Owner: Chief Executive officer, Shillong Municipal Board, Bishop cotton road Shillong, Meghalaya, India - 793001 Phone No., +91-364-2224702; Fax No., +91-364-2224850 Email:, [email protected] ; Website: http://smb.gov.in

ITB 2.4 Data Room: Data Room is the office of Chief Executive officer, SMB, Bishop cotton road, Shillong, Meghalaya, India - 793001 Phone No., +91-364-2224702 Fax No., +91-364-2224850

ITB 2.5 Venue and time of pre-bid meeting: Chief Executive officer, SMB, Bishop cotton road, Shillong, Meghalaya, India - 793001 Date : 15.05.2017 Time: 14.30 Hrs The website where proceedings of the pre-bid meeting, reply to the queries and corrigendum if any will also be uploaded is: www.smb.gov.in

ITB 2.7 Address of Owner and Owner’s alternate, and telephone and facsimile numbers of contact persons: Chief Executive officer, Shillong Municipal Board, Bishop cotton road Shillong, Meghalaya, India - 793001 Phone No., +91-364-2224702; Fax No., +91-364-2224850 Email:, [email protected] ; Website: http://smb.gov.in

Page 37: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 12

ITB SECTION REFERENCE

REQUIRED INFORMATION

SE C T I ON 7 - ITB 2.9(1), 2.2(3), 2.3(1), 2.4(1), 2.9(2)

The estimated timetable is: (1)

(a) Issue of Bidding Documents: From 01.05.17 to 23.05.17 (2)

(c) Site Visits To be notified (3)

(d) Pre-Bid Meeting [15.05.2017] (4)

(e) Last Day for Bidders to Submit Questions on Bidding [15.05.2017] Documents

(5)

(f) Last Day for Bidders to Submit Supplementary Questions [18.05.2017] (arising out of Site Visits only)

(6)

(g) Issue of Response to Questions Document [18.05.2017] (7)

(h)Calculation Date for Conversion to a Single Currency for Evaluation (ITB Section 5.4) [23.05.2017] (i)Deadline for Submission of Bids [23.05.2017] (Submission Deadline)14:00:hrslocal time (j) Opening of Bids [23.05.2017]

14:30:p.m. local time (8)

(k) Identification of Successful Bidder To be notified (9)

(l) Notification of Award To be notified (10)

(m) Contract Signature To be notified (11)

(n) Design-Build Starting Date To be notified (12)

(o) Completion of STP 1(one) year from the date of award (13)

Page 38: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 12

ITB SECTION REFERENCE

REQUIRED INFORMATION

ITB 3.1 (14) Language of Bid is [English].

ITB 3.2(3) (15) Recommended length of Bid: As per bidder’s requirement

Page 39: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 12

ITB SECTION REFERENCE

REQUIRED INFORMATION

ITB 3.3 (c) Price of Land to be considered for evaluation of the Bid Prices: Rs. 2260/ Sq. m.

ITB 3.3(b)(i)(B) Design, Build, Operate and Maintain 115m3/day capacity Septage waste Treatment Plant at Shillong on DBOT basis including 5 years post commissioning Operation & Maintenance on sustainable mode with appropriate selected technology on DBOT Basis including all Civil, mechanical electrical and instrumentation works as well as other ancillary facilities required for the complete operation of the plant.

Shillong Municipal board will make available land for the STP, not exceeding 0.25Haadjoining to existing land fill site near Mawiong.

The septage waste collected from the individual house hold shall be discharged in to the collection chamber. The works should include the following The septage treatment facility consists of pre-treatment, solid-liquid separation, secondary treatment of liquid, and disinfection units. The dewatered and dried septage is used as a soil conditioner / fertilizer. The dewatering shall be through mechanical process Sludge treatment and Sludge disposal arrangements Treated sewage reuse and disposal arrangements, Onsite testing facility for parameters mentioned in SCC Campus Development Works Any other facility as required to conform to effluent standards The pre-treatment shall consist of septage storage tank, screen, grit removal mechanism, pumping arrangements to pump the liquid/sludge for treatment units etc. The scope also includes landscaping of plant area with buffer zones, internal roads with access to all units, illumination of the entire STP yard, pathways, storm water drainage, compound wall fencing & gates, administrative building, panel cum operator room, etc, including store house for tools and spares, laboratory with water supply & waste water disposal arrangements, approach road of 3.5m carriageway a. Bidders to verify these details as per site condition

ITB 3.3(c) The Operation Plan:

The Bidder shall operate the STP and other infrastructure which the bidder intends to build for further treatment and disposal. The bidder shall operate, maintain the STP to meet the disposal standards as per CPCB/MSPCB norms up to secondary treatment as mentioned in the required outlet parameters.

The Expenditure towards annual power cost for Plant operations and other services, Labour for O & M/ security, all consumables, spares, tools, etc for 5years shall be the responsibility of the Bidder.

The bidder shall abide with the Environmental Management Plan within the premises of STP and surroundings.

ITB 3.3(e)(ii)(B) Language capabilities for Bidder’s Personnel; [English]

Page 40: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 12

ITB SECTION REFERENCE

REQUIRED INFORMATION

ITB 3.3(f) List of Key Staff to be deployed by the Operator during the Design build services for STP as stipulated in SCC 8.3 is reproduced here.

S.No Staff No*

Minimum Qualifications

1 Project

Manager 1

A Graduate in Civil Engineering with not less than 10 years’ experience in construction of Sewage Treatment Plants/ Sewerage networks.

2 Civil

Engineer 1

A Civil Engineer (Graduate Engineer) with not less than eight years’ experience in construction of similar engineering works or Diploma in Civil Engineering with 10years’ experience

3 Electro

Mechanical Engineer

1

A Electro /Mechanical Engineer (Graduate Engineer) with not less than8years’ experience in construction of similar engineering works or Diploma in Electro/ Mechanical Engineering with 10years’ experience

4 Civil

Supervisors 2

Diploma in Civil Engineering with minimum 2 years’ experience in Construction of Civil Engineering works

5 Environmental Engineer

1

Degree in Environmental Science with minimum of 5 years’ experience or Environmental Engineering with minimum 3 years’ experience in environmental management works of urban infrastructure projects.

CVs of key staff shall be submitted along with the bid and shall be subject to approval of Owner. Bidder’s attention is drawn to Article 7.2 of Schedule 2 (Design Build Services Schedule) of the Contract which shall be applicable, if the Operator proposes to replace any Key Staff during Design & build services period. For O&M services, qualifications and experience of the Key Staff have been specified in Article 2.6 of Schedule 3 (Operations and Maintenance Services Schedule) of Contract. The bidder shall take the same into account while submitting the Staffing Plan for O&M services with its bid.

ITB 3.3 (g) Maximum percentage of sub-contracting the design-build services is 25%. However the nominated sub-contractor whose experience and qualification have been claimed for meeting the qualification criteria in accordance with stipulations in Annexure A part h shall be excluded while applying the ceiling of 25 %

Page 41: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 12

ITB SECTION REFERENCE

REQUIRED INFORMATION

ITB 3.4(1) Amount of Bid Security: Rs. 3,20,000/-(Three lakhs Twenty thousand only)

ITB 3.11 c The prevailing electricity tariff referred to as “Base Rate of Electricity Tariff” is Rs6.50per KWh.

ITB 3.14(1) Bid Validity Period: 120 days ITB 3.15(1), 4.1(1) and 4.4(2)(a)

Original and 1 copy.

ITB 4.1(2)(a), 4.2(1), 4.2(3), 4.4(3)(b)

Address of Bid submission: Chief Executive officer, Shillong Municipal Board, Shillong Date : 23.05.17 Time: 14.00 Hrs

ITB 4.1(2)(b), 4.4(3)(c)

Name of Contract: Design, Build, Operate and Maintain 115m3/day Capacity Septage /Sewage Treatment Plant at Shillong on DBOT basis including 5 years post commissioning Operation & Maintenance on sustainable mode

ITB 4.1(2)(b), 4.2(1), 5.1(1)(b)

Location, date and time of opening of Bid: Chief Executive officer, Shillong Municipal Board, Shillong (16) Date :23.05.17 Time: 14.30 Hrs.

ITB 5.4(2) Currency chosen for the purpose of converting to a common currency: (INDIAN RUPESS) Source of exchange rate: Reserve Bank of India, exchange rate published in Indian National news papers Date of exchange rate: the last date of bid submission (exchange rate declared by SBI, Main Branch, Shillong

ITB 6.5 Amount of Performance Security: 10% of Contract priceincluding O&M of 5

years. For this purpose, the total contract price shall be determined as under on the basis of Bid Prices quoted by the bidder in various Parts of Price Schedule: Total Contract Price =Design Build Price for STP as per Part A+ Total O & M Price for STP for the 5 year period as per Parts B & C, assuming indicative sewage flow rate reaching the STP during respective years of the O&M period as indicated in Appendix to Bid (Indicative Flow)

ITB 6.7 Name of the Adjudicator proposed by the Owner: (17)

To be notified [Attach a résumé of the named person to the Bid Data Sheet] (18)

(Daily fee for the Adjudicator:INR5,000/day+ reimbursementstowards travel, transportation, lodging, boarding etc):

Page 42: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Annex to the Bidding Documents

(i) Bidder’s Bid Form (ii) Bidder’s Price Schedules (iii) Form of Bid Security (iv) Form of Performance Security (v) Form of Bank Guarantee – Advance Payment (vi) Format of Curriculum Vitae for Proposed Key Staff (vii) Form for Clarification Questions (viii) Appendix to Annex A - Information Forms

Page 43: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 12

BIDDER’S BID FORM [NAME OF PROJECT] Date: Contract No: [Name of Contract] To: [Name and address of Owner] Gentlemen, Having examined the Bidding Documents, including Addendum Nos. [insert numbers], the receipt of which is hereby acknowledged, we, the undersigned, offer to Design, Build, test, pre-commission and commission the Septage/Sewage Treatment Plant and perform the subsequent Operation and Maintenance services under the above-named Contract in full conformity with the said Bidding Documents for the sum of: [amount of currency #1 in words], [amount in figures], and [amount of currency #2, if applicable, in words], [amount in figures] and [amount of currency #3, if applicable, in words], [amount in figures] or such other sums as may be determined in accordance with the terms and conditions of the Contract. The above amounts are in accordance with the Bidder’s Price Schedules attached herewith and are made part of this Bid. We undertake, if our Bid is accepted, to commence the construction of STP and to achieve Completion within the respective times stated in the Bidding Documents. If our Bid is accepted, we undertake to provide an advance payment security and the Performance Security in the form, in the amounts, and within the times specified in the Bidding Documents. We accept the appointment of [name proposed in Bid Data Sheet] as the Adjudicator. or We do not accept the appointment of [name proposed in Bid Data Sheet] as the Adjudicator, and we propose instead that [name] be appointed as Adjudicator, whose résumé and hourly fees are attached. We agree to abide by this Bid, which consists of this letter and the other documents listed in ITB Section 3.2, for the period identified in the Bid Data Sheet as the length of the Bid Validity Period, and it shall remain binding upon us and may be accepted by you at any time before the expiration of that period. Until a formal contract is prepared and executed between us, this Bid, together with your written acceptance thereof and your notification of award, shall constitute a binding contract between us. We understand that you are not bound to accept the lowest or any Bid you may receive. Dated this day of , [Year]. [signature] In the capacity of [position] Duly authorized to sign this bid for and on behalf of [name of Bidder]

Page 44: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 12

BIDDER’S PRICE SCHEDULES PREAMBLE TO THE PRICE SCHEDULES

1.0 General

1.1 The Price Schedules are divided into separate Schedules as follows:

Schedule 1 Price Schedule (Part A: For Design, Build, Operate and Maintain 115m3/day Capacity Septage/Sewage Treatment Plant at Shillong on DBOT basis including 5 years post commissioning Operation & Maintenance on sustainable mode cost upto post completion and commissioning Defects liability period of one year to run concurrently with the post completion O & M of five years)

Schedule 2 Part B: (Operation and Maintenance Cost for 5 years) after DLP Breakdown of Prices

The Breakdown of Prices is FOR INFORMATION ONLY.

1.2 The Price Schedules do not give a full description of the STP, O & M for 5 years and other services, to be supplied and the Services to be performed under each item. Bidders are deemed to have read the Draft Contract, including the Technical Specifications Appendix consisting of the Design-Build Appendix, Operations Services Appendix and Technical Standards Appendix, and other sections of the Bidding Documents to ascertain the full scope of the requirements of the Contract included in each item prior to filling in the prices. The entered prices are deemed to include the full scope as aforesaid, including overheads and profit.

1.3 If Bidders are unclear or uncertain as to the scope of any item, they shall seek clarification in accordance with the Instructions to Bidders in the Bidding Documents prior to submitting their Bid.

2.0 Pricing

2.1 Prices shall be filled in indelible ink, and any alterations necessary due to errors shall be initialled by the Bidder. As specified in the Bid Data Sheet, prices shall be fixed and firm for the duration of the Contract, except if as adjusted in accordance with the Contract.

2.2 The Bid Price shall be quoted in the manner indicated and in the currencies specified in the Instructions to Bidders in the Bidding Documents. For each item, Bidders shall complete each appropriate column in the respective Schedules, giving the price breakdown as indicated in the Schedules.

2.2.1 Prices shall be quoted in the Price Schedule on the following basis: (i) The bidder shall offer the cost payable by the owner or premium payable by the bidder after taking

into account the likely revenues from the sale of treated effluent availing of the “Right to Sell” to be given to the bidder for setting up of the STP.

(ii) The bidder shall also offer the cost payable by the owner or the premium payable by the bidder after taking into account likely revenues from sell of treated effluent for Operation & Maintenance of STP by the bidder as annuity payments with year-wise breakup for a period of 5 years. After completion and commissioning of the STP.

Page 45: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 12

(iii) If a bidder submits bid asking for payments for the cost of setting up the STP facility, it shall submit with its bid details evidencing that the cost claimed for the payment is based on a realistic assessment of setting up the STP facility. The owner shall have the option to seek further details including details of costs of similar contracts executed by the bidder in the past.

(iv) The owner shall evaluate the bid prices by determining and adding the quoted components of cost and prices / premium as under:

a. Net Present Value (NPV) of quoted capital cost to be paid by the owner / premium payable by operator for setting up STP facility (discounted at the rate of 12% per annum to the scheduled date of commencement of construction of STP).

b. Net Present Value of the yearly payments / premium for the operation and maintenance services over a period of 5 years discounted at the rate of 12% per annum to be scheduled date of commencement of construction of STP.

c. Net Present Value of the lease charges for 5 years as applied to the excess area of the land required by the bidder (for setting up the STP) in comparison with the lowest land area requirement (for setting up the STP) quoted by any of the bidders which submit the bids, which shall be determined as under: Lease charges on the excess land requirement of the bidder = (Annual lease charges @ Rs. 10,00,000/- [Rupees Ten lakhs Only] per HA) x (land requirement in Ha quoted by the bidder – the lowest land requirement in Ha quoted by any of the participating bidders). The lease charges shall be escalated @ 5% per annum progressively. The series of such Lease charges over the operation period of 5 years shall be discounted at the rate of 12% per annum to determine the Net Present Value as on the date of commencement of operation and maintenance of the STP.

(v) The owner shall determine that the bidder i.e. selected as having submitted the lowest evaluated bid (which implies the bid with the highest premium in case bids with premiums are received) meets the qualification requirements specified in the bidding documents.

2.2.2 Prices given in the Schedules against each item shall be for the scope covered by that item as detailed in the Draft Contract or elsewhere in the Bidding Documents.

2.3 The Owner will make payments to the Bidder in the currency or currencies indicated under each respective item.

2.4 When requested by the Owner for the purposes of making payments or part payments, valuing changes or evaluating claims, or for such other purposes as the Owner may reasonably require, the bidder shall provide the Owner with a breakdown of any composite or lump sum items included in the Schedules.

Page 46: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 12

Price Schedule 1

Table Ab1 - Bid Price Summary STP8

.

No. Component Price

1. Price Schedule: Part A (STP) – Design-Build price

2. Price Schedule: Part B (STP) –Total O & M Price for 5 years

3 Cost of Land required for setting up STP

Total Bid Price

Amount in Words:

Note: Figures in Table Ab1 are arrived at from figures in Tables Ab2 and Ab3.

8In case of ICB Bidders may quote prices in up to three foreign currencies in addition to INR. In case of NCB prices shall be quoted in INR only. If bidder’s quotation also includes foreign currencies, the bidder shall repeat this table for each currency.

Page 47: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 12

Table Ab2 - Price Schedule: PART A (STP) – Design-Build Price

S.N. Works Activity Design-Build Price9

1 Design, development, supply of equipment, erection of equipment, civil, electro mechanical and instrumentation control works, including testing, commissioning of 115m3/day Septage STP including Septage storage, pre-treatment of septage, lime stabilisation, sludge treatment, secondary treatment of liquid, dewatering system etcin Shillong with appropriate and cost effective technology.

Break-up of Price of item 1 above

1A Civil and Structural Works (including that required for disposal and reuse)

1B Installation, testing and commissioning of Electro – mechanical and Instrumentation equipment and accessories including all equipment’snecessary for running the plant.

1C Ancillary works like approach roads, compound wall with gates, internal roads, area grading, land scaping, admin building, lab toilets, office room etc.

Total Design Build Price

Amount in Words

9In case of ICB Bidders may quote prices in up to three foreign currencies in addition to INR. In case of NCB prices shall be quoted in INR only. If bidder’s quotation also includes foreign currencies, the bidder shall repeat this table for each currency.

Page 48: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 12

Table Ab3 - Price Schedule PARTS B (STP) and Annual O&M Price

Year of Operations

Currency (Up to 3 foreign currencies + INR)10

PART B Annual O & M Price for treatment

of 115m3/day (Amount)

1 2 3 4 5 Total O&M Price (Parts B & C) Amount in Words

The area of the land that is required for the STP, roads, drains and other appurtenant structures including reuse infrastructure in accordance with ITB clause 3.3 c is______square meters.

Cost of Land

S. N. Component Price (INR)

1. Area of Land Required for STP as per ITB Clause 3.3 c

2. Price of Land per square meter as per Bid Data Sheet clause 3.3 (c)

Total Price of Land:

Amount in Words:

10in case of ICB, bidders may quote prices in up to 3 foreign currencies in addition to INR. In case of NCB prices shall be quoted in INR only. If bidder’s quotation also includes foreign currencies, the bidder shall repeat this table for each currency.

Page 49: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 12

1.9 Part G (STP)- The Electricity Consumption guaranteed by the bidder (for the purpose of ITB 3.11 (c) and 3.11 (d) shall be as under:

Table Ab4 - Part G (STP& MPS) Guaranteed Electricity Consumption

Year of Operations Guaranteed Electricity Consumption

(KWh / m3/day) 1 2 3 4 5

Notes B: 1. Bidder shall indicate the land requirement for STP, roads, drains and other appurtenant structures in

Square Metres in reference to ITB 3.3 c, along with calculations considering the proposed treatment process.

2. The Bidder shall provide along with the price schedule a separate table giving details of taxes, duties, levies and other applicable taxes considered by him and included in the prices offered under Part A & Part B. Service Tax shall not be included in the prices and the same shall be paid separately by the Owner if applicable against proof of applicability and payment,

3. The prices quoted in each of the sub parts of the Price Schedules shall be supported by sufficient justification, financial model and support materials / calculations showing the methods and the rates assumed at arriving these numbers.

Signature of the Bidder Signature of the Engineer Name of the Bidders Name of the Engineer Rubber stamp with Designation Designation

Date

Page 50: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 12

Page 51: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 12

FORM OF BID SECURITY (BANK GUARANTEE) WHEREAS, ...........................(name of Bidder including names of all Joint Venture Participants) (hereinafter called “the Bidder”) has submitted its Bid (hereinafter called the “Bid”) dated (date) for the performance of (name of Contract). KNOW ALL PEOPLE by these presents that We .................... (name of Bank) of .................... (name of country) having our registered office at .................... (hereinafter called “the Bank”) are bound unto .................... (hereinafter called “the Owner”) in the sum of ....................for which payment well and truly to be made to the said Owner, the Bank binds itself, its successors, and assigns by these presents.

[The Bidder should insert the amount of the guarantee in words and in figures. This figure should be the same amount as set out in ITB Section 3.4(1) and the Bid Data Sheet. The details related to the Bid Security are set out in the same ITB Section 3.4.]

The CONDITIONS of this obligation are:

(1) if the Bidder withdraws its Bid during the Bid Validity Period; or

(2) if the Bidder, having been notified of the acceptance of its Bid by the Owner during the period of Bid validity,

(a) fails to sign the Form of Contract in accordance with and when required by ITB Section 6.4; or

(b) fails to provide the performance security to the Owner in accordance with and when required by ITB Section 6.5.

We undertake to pay to the Owner up to the above amount upon receipt of its first written demand, without the Owner having to substantiate its demand, provided that in its demand the Owner will note that the amount claimed by it is due to it owing to the occurrence of one or more of the conditions set out above, specifying the occurred condition or conditions.

This Guarantee will remain in full force up to and including 30 days after the expiry of the Bid Validity Period and it may be extended by the Owner in accordance with the Bidding Documents, notice of which extension(s) to the Bank is hereby waived. Any demand in respect of this Guarantee should reach the Bank not later than the above date or the extended date.

SEALED with the Common Seal of the said Bank this ....... day of ...................., [Year]. _________________________ ___________________________ WITNESS SIGNATURE OF THE BANK (signature, name and address) SEAL Name: Position:

Page 52: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 12

FORM OF PERFORMANCE SECURITY

[Bank’s Name, and Address of Issuing Branch or Office]

Beneficiary: [Name and Address of Owner]

Date:

PERFORMANCE GUARANTEE NO.:

We have been informed that [name of Bidder] (hereinafter called “the Bidder”) has entered into Contract No. [reference number of the contract] dated with you, concerning a contract to design, build and operate a Sewerage Treatment Plant in [Name of Location] (hereinafter called “the Contract”).

Furthermore, we understand that, according to the conditions of the Contract, a performance guarantee is required.

At the request of the Operator, we [name of Bank] hereby irrevocably undertake to pay you any sum or sums not exceeding in total an amount of [amount in figures] ( )[amount in words], upon receipt by us of your first demand in writing accompanied by a written statement stating that the Contract is in breach of its obligations under the Contract, without your needing to prove or to show grounds for your demand or the sum specified therein.

This guarantee shall expire no later than the earlier of:

(a) six months after the End Date, as defined in the Contract; or

(b) six months after the date of termination of the Contract pursuant to its terms.

Consequently, any demand for payment under this guarantee must be received by us at this office on or before that date.

This guarantee is subject to the Uniform Rules for Demand Guarantees, ICC Publication No. 458 except that subparagraph (ii) of Sub-article 20(a) is hereby excluded.

Yours truly,

[Name of Bank]

Authorised Signature

Page 53: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 12

FORM OF BANK GUARANTEE – ADVANCE PAYMENT

[Name of Contract]

To: [Name and address of Owner]

Dear Ladies and/or Gentlemen,

We refer to the Contract Agreement (“the Contract”) signed on [date] between you and [name of Operator] (“the Operator”) concerning the Services set out in the Contract to Design, Build and Operate a Sewage Treatment Plant.

Whereas, in accordance with the terms of the Contract, the Owner agreed to pay or cause to be paid to the Operator an advance payment in the amount of [number] percent (____%) of the Contract Price for the Design-Build, Commission, Operate and Maintaining STP for 5 years, namely a payment of: [amount of foreign currency in words], [amount in figures], and [amount of local currency in words], [amount in figures].

By this letter we, the undersigned, [name of Bank], a Bank (or company) organised under the laws of [country of Bank] and having its registered/principal office at [address of Bank], do hereby jointly and severally with the bidder irrevocably guarantee repayment of the amounts upon the first demand of the Owner without cavil or argument in the event that the bidder fails to commence or fulfil its obligations under the terms of the Contract, and in the event of such failure, refuses to repay all or part (as the case may be) of the advance payment to the Owner.

Provided always that the Bank’s obligation shall be limited to an amount equal to the outstanding balance of the advance payment, taking into account such amounts that have been repaid by the Bidder from time to time in accordance with the terms of payment of the Contract as evidenced by appropriate shipping documents or payments certificates.

This Guarantee shall remain in full force from the date upon which the advance payment is received by the bidder until the date upon which the bidder has fully repaid the amount is advanced to the Owner in accordance with the terms of the Contract. At the time at which the outstanding amount is nil, this Guarantee shall become null and void, whether the original is returned to us or not.

Any claims to be made under this Guarantee must be received by the Bank during its period of validity.

Yours truly,

[Name of the Bank]

Authorized Signature

Page 54: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 12

FORMAT OF CURRICULUM VITAE (CV) FOR PROPOSED KEY STAFF Proposed Position: Name of Firm: Name of Staff: Profession: Date of Birth: Years with Firm/Entity: Nationality: Membership in Professional Societies: Detailed Tasks Assigned: Key Qualifications: [Give an outline of staff member’s experience and training most pertinent to tasks on assignment. Describe degree of responsibility held by staff member on relevant previous assignments and give dates and locations. Use about half a page.] Education: [Summarize college/university and other specialized education of staff member, give names of schools, dates attended, and degrees obtained. Use about one quarter of a page.] Employment Record: [Starting with present position, list in reverse order every employment held. List all positions held by staff member since graduation, giving dates, names of employment organizations, titles of positions held, and locations of assignments. For experience in last ten years, also give types of activities performed and client references, where appropriate. Use about two pages.] Languages: [For each language indicate proficiency: excellent, good, fair or poor in speaking, reading and writing.] Certification: I, the undersigned, certify that to the best of my knowledge and belief, these data correctly describe me, my qualifications, and my experience. I also certify that I have only given permission for my CV to be included in the Bid submitted by [Fill in name of Bidder here.] Date: [Signature of staff member and authorized representative of the firm] Day/Month/Year Full name of staff member: Full name of authorized representative:

Page 55: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Form for Clarification Questions

Bidder’s Name:

Bidder’s Address: Date Submitted:

Item No. Section Reference Page No. Section or Article No.

Question/Query/Clarification/Comment

1. (19) (20) (21) (22)

2. (23) (24) (25) (26)

3. (27) (28) (29) (30)

4. (31) (32) (33) (34)

5. (35) (36) (37) (38)

6. (39) (40) (41) (42)

Page 56: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1 of 5

Appendix to ITB

QUALIFICATION CRITERIA

Page 57: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

2 of 5

SECTION 1 - QUALIFICATION CRITERIA

1.1 General

(1) Evaluation of the Bidders’ qualifications will be based on compliance with all the following minimum pass-fail criteria regarding their general design, build, construct, operation and maintenance experience of Septage Treatment Plant (STP), financial strength, personnel and management capabilities, and other relevant information as demonstrated by the Bidders’ responses in the Information Forms that they submit as per the attached Bid Forms. Additional requirements for joint ventures are given in Section 2.

(2) Bidders may submit the Bid either as,

(a) A stand-alone firm, company, legal entity formed as per the applicable law; or

(b) A joint venture consortium of firms, companies / entities set up for the purpose of this bidding process,

provided that they meet the requirements of the Bidding Documents. For the purpose of assessing some qualification criteria, the qualifications and experience of subcontractors may be included and the specific provisions in this regard are set out in Section 1.5(2).

1.2 Subcontracting

(1) Bidders will be evaluated based on the qualifications of,

(a) the Bidder; and

(b) nominated subcontractors and sub-consultants only with respect to the experience evaluation as set out in Section 1.5(2), and only if the subcontractors and sub-consultants are nominated for the purpose of this bid.

For the purposes of Section 1.7, Bidders may nominate personnel of subcontractors and sub-consultants to fill the key positions listed in the BDS - ITB 3.3(f).

(2) The Bidder shall provide a detailed list of all nominated subcontractors and sub-consultants and a record of their experience and qualifications in the applicable Information Forms. The bidder under the Contract shall be prohibited from entering into a contract or contracts that will result in the bidder exceeding the maximum percentage of subcontracting and sub-consulting permitted by the Owner, as set out in the BDS - ITB 3.3(g).

(3) Bidders will not be permitted to change the subcontractors and sub-consultants nominated in their Bid.

1.3 Bidder’s Responsibility

After award of the Contract, the subcontracting of any part of the work, except for those subcontractors and sub consultants nominated in the Bid, shall require the prior written consent of the Owner. Notwithstanding such consent, the bidder shall remain responsible for the acts, defaults, and neglects of all subcontractors and sub consultants during Contract implementation.

1.4 General Sewage Treatment Experience

(1) The Bidder shall provide evidence that,

(a) it has been actively engaged in designing, building, operating, managing and maintaining Septage/Sewage Treatment facilities, for at least 10Yearsimmediately prior to the date of submission of the Bid; and

(b) it has generated a minimum annual turnover greater than INR 3.20Crores or equivalent US$, in the area of infrastructure development and engineering construction in any two years in the last five financial years preceding the date of submission of bid.

Page 58: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

3 of 5

1.5 Experience in design, development and construction, testing and commissioning of Sewage/Septage Treatment Plant

(1)A sewage treatment plant means a treatment facility designed, developed and constructed for preliminary and secondary treatment of septage waste for its safe disposal as per the norms that are specified by the Central Pollution Control Board and / or Meghalaya State Pollution Control Board. Waste stabilization pond / other pond process will not be covered under this definition.

(2) The Bidder shall provide evidence that it has successfully designed, developed, constructed, tested and commissioned a septage/Sewage treatment plant – one number with a minimum capacity of 1.0 MLD during last 10 years.

(3) The projects or assignments may have been executed by the Bidder as prime contractor, or proportionately as a member of a joint venture, or as a subcontractor or sub-consultant, with references being submitted to confirm satisfactory performance.

(4) The bidder shall provide evidence that it has successful experience in operating and maintaining a STP of minimum 1 MLD capacity for a period of three years in last ten years preceding the date of submission of the tender.

(5) For the purpose of demonstrating its experience in accordance with Section 1.4(1)(a) and 1.5, the Bidder, including a joint venture Bidder, may include the experience of the subcontractors and sub-consultants nominated in the Information Forms.

1.6 Financial Capabilities

(1) The Bidder shall demonstrate that it possesses a tangible net worth equivalent to 1 Crores or its equivalent US $ in any two of the last five financial years preceding the date of submission of bid.

(2) The bidder shall demonstrate through a banker’s certificate that it has available cash credit facility equivalent to Rs. 1crores or its equivalent in US $ as on date of submission of the bid.

(3) The Bidder’s audited balance sheets or, if not required by the laws of the Applicant’s country, other financial statements acceptable to the Owner, for the last five years shall be submitted and must demonstrate the current soundness of the Bidder’s financial position and indicate its prospective long-term profitability. If deemed necessary by the Owner, the Owner shall have the authority to make inquiries with the Bidder’s bankers.

1.7 Personnel Capabilities

The Bidder shall supply general information on the management structure of the firm, and shall make provision for suitably qualified personnel to fill the key positions listed in the BDS – ITB 3.3(f), as required during Contract implementation. The Bidder shall supply information on a candidate for each key position, who shall meet the experience requirements specified. The Applicant may nominate personnel of subcontractors and sub consultants to fill key positions listed in the BDS.

1.8 Litigation History and Legal Matters

(1) The Bidder shall provide accurate information on the “Historical Contract Non-Performance Form” about contract non-performance and pending litigation with respect to contracts completed or ongoing under its execution over the last five years. A consistent history of awards against the Bidder or any participant of a joint venture may result in rejection of the Bid.

1.9 Right to Waive

The Owner reserves the right to waive minor deviations in the qualification criteria if they do not materially affect the capability of a Bidder to perform the Contract.

Page 59: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

4 of 5

SECTION 2 - JOINT VENTURES

2.1 Eligibility

If the Bidder comprises a number of firms combining their resources as a joint venture consortium, the financial strengths of each member of the consortium shall be added together in proportion to their financial stake in the consortium. As for the experience in design, development, construction and commissioning of the STP as well as O & M of STP, any one of the joint venture consortium member shall meet with the minimum criteria prescribed in Section 1 herein above.

2.2 Qualification Criteria

(1) Each participant in a joint venture shall provide the information set out in Section 2.2(2) /(3) as it applies to the participant’s own firm.

(2) For the purpose of satisfying the qualification criteria set out in Section 4 the following data of each participant in the joint venture may be added together to meet qualifying criteria as under:

(a) general design, build, operation, management and maintenance of STP as stated in Section 1.4(1)(a);

(b) average annual turnover as stated in Section 1.4(1)(b)by any one of the joint venture consortium member or combined turnover of all members of the joint venture consortium;

(c) particular Sewage/Septage Treatment experience as stated in Section 1.5; by any one member of the joint venture consortium and

(d) personnel capabilities as stated in Section 1.7.

(3) For the purpose of satisfying the qualification criteria set out in Section 4each joint venture participant must satisfy the following qualification criteria individually:

(a) financial soundness as stated in Section 1.6(1);

(b) adequate sources to meet financial commitments as set out in Section 1.6(2); and

(c) legal disclosure as stated in Section 1.8.

(4) The Bidder shall include all information in respect of joint venture participants that is required to meet the qualification criteria in Section 1, in accordance with Section 2.2, in the Bid.

2.3 Lead Participant

One of the joint venture participants who is responsible for performing a key function in contract management or in executing a major component of the proposed Contract shall be nominated as being in charge during the bidding process and, in the event of a successful bid, during Contract execution (the “Lead Participant”). The Lead Participant shall be authorized to incur liabilities and receive instructions for and on behalf of any and all participants of the joint venture. This authorization shall be evidenced by the submission of a power of attorney signed by legally authorized signatories of each of the joint venture participants as part of the Bid Performa enclosed in Annexure A as part of the Bid.

All Partners All partners of the joint venture shall be liable jointly and severally for the execution of the Contract in accordance with the Contract terms and a copy of the undertaking as per format provided under Annexure A – signed by the joint venture partners shall be submitted with the bid

Page 60: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 26

Appendix to Annex A

To the Bidding Documents

Information Forms

Page 61: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 26

INFORMATION FORM (1)

General Information

All individual firms and each participant in a joint venture submitting the bids are required to complete the information in this form. Nationality information should be provided for all bidders that are partnerships or individually owned firms.

If the Bidder proposes to use nominated subcontractors or sub-consultants, the following information should also be supplied for the subcontractor(s) and sub-consultant(s).

1. Name of firm

2. Head office address

3. Telephone Contact

4. Fax Telex

5. Place of incorporation / registration

Year of incorporation / registration

Nationality of owners1

Name Nationality

1.

2.

3.

4.

5.

1. To be completed by all owners of partnerships or individually owned firms.

Page 62: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 26

INFORMATION FORM (2) (ref. Appendix to ITB Section 1.4)

General Design, Build, Operation and Management Experience Information

Name of Bidder or participant of a joint venture

All individual firms and all participants of a joint venture are requested to complete the information in this form with regard to their experience in designing, building, operating, managing and maintaining Sewage TreatmentPlants

Description of Contract/ Sewage TreatmentPlants with its Capacity (in MLD)

Name of Joint Venture Participant Responsible

Name of City

Country

Population served

Contract Role (joint venture participant, subcontractor, subconsultant, lead, etc.) and percentage share in the total contract

Nature, role and extent of participation (describe fully)

Date of contract commencement

Date of contract termination

Contract value (INR/US$)

Individual for reference

Address, Telephone, Fax for reference

Page 63: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 26

INFORMATION FORM (2A) (ref.Appendix to ITB Section 1.4)

General Turnover Information

Name of Bidder or participant of a joint venture

All individual firms and all participants of a joint venture are requested to complete the information in this form with regard to their experience in designing, building, operating, managing and maintaining Sewage Treatment Plants. The information supplied should be the annual turnover of the Bidder (or each member of a joint venture) in terms of the amounts billed to clients for each year for work in progress or completed, converted to U.S. dollars at the rate of exchange at the end of the period reported. The annual periods should be calendar years, with partial accounting for the year up to the date of submission of Applications.

Use a separate sheet for each participant of a joint venture.

Bidders should not enclose testimonials, certificates, and publicity material with their Application as they will not be taken into account in the evaluation of qualifications.

Annual financial data (in the area of infrastructure development and engineering construction).

Year Turnover (Rs. Million)

Net Worth (Rs. Million)

Net Cash Accruals (Rs. Million)

[Year] [Year] [Year] [Year] [Year]

# Instructions and Applicable Conditions:

1. The applicant shall provide details of its own financial capacity;

2. The Applicant / its constituent Joint Venture Partners shall attach copies of balance sheets, financial statements and Annual report for 5 (five) years preceding the Application due date. The financial statements shall:

a. Reflect the financial situation of the Bidder or Joint Venture Partners,

b. Be audited by a statutory auditor

c. Be complete including all notes to the Financial statements; and

d. Correspond to accounting periods already completed and audited (no statements for partial periods shall be requested or accepted)

3. Net Worth (The definition of Net Worth shall be as follows: Based on the type of the Applicant whether a company, partnership firm, etc. the net worth is defined as follow:

a. In case of a company registered under Companies Act, 1956: Net worth shall mean the sum of subscribed and paid up equity share capital and reserves from which shall be deducted the sum

Page 64: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 26

of revaluation reserves, miscellaneous expenditure not written off and reserves not available for distribution to equity share holders.

For the company = (Subscribed and Paid-up Equity + Reserves) less (Revaluation reserves + miscellaneous expenditure not written off + reserves not available for distribution to equity share holders).

b. In case of a Partnership firm: Net worth shall mean the sum of Aggregate of partners' capital account and Reserves from which the aggregate of drawings by partners and aggregate of advances to partners shall be deducted.

For Partnership Firm = Aggregate of partners' capital account + Reserves - Aggregate of drawings by partners - Aggregate of advances to partners

c. In case of a Trust / Society: Net worth shall mean the sum of corpus and the returns not set aside for any particular purpose.

For Trust / Society = corpus + returns not set aside for any particular purpose

4. Net Cash Accruals shall be defined as follows: Net Cash Accruals = Profit after Tax + Depreciation;

5. Year 1 will be the latest completed financial year, preceding the bidding. Year 2 shall be immediately preceding year 1 and so on. In case the Bid Submission date falls within 3 (three) months of the close of the latest financial year of the applicant, it shall ignore such financial year for the purpose of its bid and furnish all its information and certification with reference to the 5 (five) years preceding its latest financial year. For the avoidance of doubt, financial year shall, for the purpose of the Bid hereunder, mean the accounting year followed by the Bidder in the course of its normal business.

6. The Bidder shall provide an Auditor’s Certificate specifying the Net Worth and Net Cash Accruals of the Bidder and also specifying the methodology adopted for calculating such net worth in accordance with the formula mentioned in point 3 and 4 above.

7. The Bidder shall provide from its concerned client (s) or Statutory Auditor, certificate(s) stating the payments made / received or works commissioned, as the case may be, during the past 5 (five) years in respect of the Projects specified in Information Forms 2, 3A and 3B.

Page 65: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 26

INFORMATION FORM (2B)

Joint Venture Summary

Names of all participants of a joint venture

1. Lead Participant

Financial stake in the JV Consortium

2. Participant

Financial stake in the JV Consortium

3. Participant

Financial stake in the JV Consortium

4. Participant

Financial stake in the JV Consortium

Total value of annual turnover relating to designing, building, operating, managing and maintaining Sewage TreatmentPlant, in terms of work billed to clients, in US$ equivalent, converted at the rate of exchange at the end of the period reported:

Annual turnover data (in the area of infrastructure development and engineering construction).

Participant Information Form (2A) page no. [Year] [Year] [Year] [Year] [Year]

1. Lead Participant

2. Participant

3. Participant

4. Participant

Totals

Bidders shall append to Form 2B:

(a) A document confirming the percentage shareholding of each joint venture participant in the company to be established; and

Page 66: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 26

(b) A description of the role and responsibility of each joint venture participant. (Bidders shall make the precise role of each joint venture participant clear in this description).

Bidders are reminded to submit the appropriate powers of attorney as required by Appendix to ITB Section 2.3 and to provide all other information required in the powers of attorney (see Appendix to ITB Section 2, in particular Sections 2.3.) The Joint Venture Bidders may also note the requirements mentioned in ITB Section 3.6 for compliance while submitting the Bid.

Page 67: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 26

INFORMATION FORM (3A) (ref. Appendix to ITB Section 1.5)

Design, development, construction, testing and commissioning of sewage treatment plant

Name of Bidder or participant of a joint venture

Description of Contract/ Sewage TreatmentPlant

Name of Joint Venture Participant Responsible

Name of City

Country

Capacity of STP in MLD

Population served

Contract Role (joint venture participant, subcontractor, subconsultant, lead, etc.) and percentage share in the total contract

Nature, role and extent of participation (describe fully)

Date of contract commencement

Date of contract termination

Contract value in INR or equivalent to (US$)

Individual for reference

Address, Telephone, Fax for reference

Provide a complete description of the services provided under this contract demonstrating that the definition of a Sewage TreatmentPlant in Appendix to ITB Section 1.4(2) has been met.

Page 68: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 26

INFORMATION FORM (3B) (ref. Appendix to ITB Section 1.5)

Successful experience in Operating and Maintaining Sewage Treatment Plant

Name of Bidder or participant of a joint venture

Description of Contract/ Sewage TreatmentPlant

Name of Joint Venture Participant Responsible

Name of City/Urban area

Country

Capacity of STP in MLD

Number of years operated (with period)

Population served

Contract Role (joint venture participant, subcontractor, subconsultant, lead, etc.) and percentage share in the total contract

Nature, role and extent of participation (describe fully)

Date of contract commencement

Date of contract termination

Contract value in INR or equivalent to (US$)

Individual for reference

Address, Telephone, Fax for reference

Provide a complete description of the services provided under this contract demonstrating that the definition of a Sewage TreatmentPlant in Appendix to ITB Section 1.4(2) has been met.

Page 69: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 26

Page 70: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 26

INFORMATION FORM (4)

Financial Capabilities

Name of Bidder or participant of a joint venture

Bidders, including each partner of a joint venture, shall provide financial information to demonstrate that they meet the requirements stated in the Appendix to ITB. Each Bidder or participant of a joint venture shall complete this form. If necessary, separate sheets shall be used to provide complete banker information. A copy of the audited balance sheets shall be attached.

Autonomous Sewage Treatment subdivisions of parent conglomerate businesses shall submit financial information related only to the particular activities of the subdivision.

Banker Name of banker

Address of banker

Telephone Contact name and title

Fax Telex

Summarize actual assets and liabilities in INR or equivalent to U.S. dollar (at the rates of exchange current at the end of each year) for the previous five calendar years. Based upon known commitments, summarize projected assets and liabilities in INR or equivalent to U.S. dollar for the next two calendar years, unless the withholding of such information by stock market listed public companies can be substantiated by the Bidder.

Financial information in INR or equivalent to US$

Actual: Previous five years

Projected: Next two years

[Year] [Year] [Year] [Year] [Year] [Year] [Year]

1. Total assets

2. Current assets

3. Total liabilities

4. Current liabilities

5. Profits before taxes

6. Profits after taxes

Page 71: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 26

Specify proposed sources of financing, such as liquid assets, unencumbered real assets, lines of credit, and other financial means, net of current commitments, available to meet the total construction cash flow demands of the subject Contract or contracts as indicated in Appendix to ITB1.6(2).

Source of Financing Amount in INR or equivalent to US $

1.

2.

3.

4.

Attach audited financial statements—including, as a minimum, profit and loss account, balance sheet, and explanatory notes—for the period stated in Appendix to ITB1.6 (for the individual Bidder or each participant of a joint venture).

If audits are not required by the laws of Bidders' countries of origin, partnerships and firms owned by individuals may submit their balance sheets certified by a registered accountant, and supported by copies of tax returns.

Page 72: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 13 of 26

INFORMATION FORM (5) (ref.Appendix to ITB Section 1.7)

Personnel Capabilities

Name of Bidder or participant of a joint venture

For specific positionsnoted below, Bidders must provide the names of a candidate qualified to meet the specified requirements stated for each position. The data on their experience should be supplied on separate sheets using one Form (5A) for each candidate.

Bidders may propose alternative management and implementation arrangements requiring different key personnel, whose experience records should be provided.

1. Title of position*

Name of candidate

2. Title of position*

Name of candidate

3. Title of position*

Name of candidate

4. Title of position*

Name of candidate

5. Title of position*

Name of candidate

6. Title of position*

Name of candidate

7. Title of position*

Name of candidate

*As listed in BDS- ITB 3.3 (f) in respect of Appendix to ITB Section1.7

Page 73: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 14 of 26

INFORMATION FORM (5A) (ref.Appendix to ITB Section 1.7)

Candidate Summary

Name of Bidder or participant of a joint venture

Position Candidate

Candidate Information

Name of Candidate Date of Birth

Professional qualifications

Present Employment

Name of Employer

Address of Employer

Telephone Contact (manager/personnel officer)

Fax Telex

Job title of candidate Years with present employer

Summarize professional experience over the last twenty years, in reverse chronological order. Indicate particular technical and managerial experience relevant to the project.

From To Company/Project/Position/Relevant technical and management experience

Page 74: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 15 of 26

HISTORICAL CONTRACT NON-PERFORMANCE (ref.Appendix to ITB Section 1.8)

[The following table shall be filled in for the Bidder and for each partner of a Joint Venture]

Bidder’s Legal Name: [insert full name] Date: [insert day, month, year]

Joint Venture Party Legal Name: [insert full name] NCB No. and title: [insert NCB number and title]

Page [insert page number] of [insert total number] pages

Non-Performing Contracts in accordance with Appendix to ITBSection 1.8

Contract non-performance did not occur during the [number] years specified in Appendix to ITBSection 1.8

Contract(s) not performed during the [number] years specified in Appendix to ITBSection 1.8

Year Non performed portion of contract

Contract Identification Total Contract Amount (current value in INR or equivalent US$)

[insert year]

[insert amount and percentage]

Contract Identification: [indicate complete contract name/number, and any other identification]

Name of Employer: [insert full name]

Address of Employer: [insert street/city/country]

Reason(s) for non performance: [indicate main reason(s)]

[insert amount]

Pending Litigation, in accordance with Appendix to ITBSection 1.8

No pending litigation in accordance with Appendix to ITBSection 1.8

Pending litigation in accordance with Appendix to ITBSection 1.8

Page 75: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 16 of 26

FORM OF LETTER OF INTENT BY JV PARTNERS TO ENTER IN TO JV AGREEMENT

THIS LETTER OF INTENT signed on this.......... day of........... Two Thousand and ................by....... a

company incorporated under the laws of ............. and having its Registered Office at

.......................(hereinafter called the "Party No.1" which expression shall include its successors, executors

and permitted assigns) and M/s ............. a company incorporated under the laws of .......... and having its

Registered Office at ...........(hereinafter called the "Party No.2" which expression shall include its

successors, executors and permitted assigns) and M/s.. .. .. .. . .. . . . . .. . .. .. .... .. a Company

incorporated under the laws of ................ and having its Registered Office at ...............

(hereinafter called the "Party No.3" which expression shall include its successors, executors and permitted

assigns) for the purpose of making a bid and entering into a contract [hereinafter called the "Contract" (in

case of award) against the work for the design and build Sewage Treatment Plant and all Appurtenant

Structures and Allied Works, and O & M of Complete Works associated with ………………..

……………..(hereinafter called the "Owner").

WHEREAS the Party No.1, Party No.2 and Party No.3 intend to enter into a JointVenture Agreement

AND WHEREAS the Owner invited bids as per the above mentioned Specification to design and build

Sewage Treatment Plant and all Appurtenant Structures and Allied Works, and O & M of Complete

Works stipulated in the bidding documents.

AND WHEREAS ITB Clause 3.6 and Annexure A Part h Qualification Criteria forming part of the

bidding documents, inter-alia, stipulates that two or more qualified partners, meeting the requirements of

'Qualification Requirement of the Bidder', as applicable may bid, provided, they submit a Letter of Intent

to enter into Joint Venture Agreement and the Joint Venture Partners fulfill all other requirements under

ITB Clause 5.7 ‘Qualification of the Bidder’ and in such a case, the Letter of Bid (Bid Form) shall be

signed by the Partner - In Charge so as to legally bind all the Partners of the Joint Venture, who will be

jointly and severally liable to perform the Contract by entering into Joint Venture Agreement as per

proforma submitted with the Bid in accordance with ITB 3.6 which will be legally binding on all partners

and all obligations hereunder.

The above clause further states that this Letter of Intent shall be attached to the bid and the Contract

performance guarantee will be as per the format enclosed with the bidding document without any

restrictions or liability for either party.

Page 76: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 17 of 26

AND WHEREAS the bid is being submitted to the Owner vide proposal No........dated...... by Party No.1

based on this letter of Intent between all the parties; under these presents and the bid has been signed by

all the parties.

NOW THIS UNDERTAKING WITNESSETH AS UNDER:

In consideration of the above premises and agreement all the parties of this letter of Intent do hereby

declare and undertake:

In requirement of the award of the Contract by the Owner to the Joint Venture Partners, we, the Parties do

hereby undertake that M/s......... the Party No.1, shall act as lead Partner and further declare and confirm

that we the parties to the Joint Venture shall jointly and severally be bound unto the Owner for the

successful performance of the Contract and shall be fully responsible for the design and build Sewage

Treatment Plant and all Appurtenant Structures and Allied Works, and O & M of Complete Works

accordance with the Contract for which we shall enter into Joint Venture Agreement as per proforma

submitted with the Bid which will be legally binding on all partners:

If the Contract is awarded to Joint Venture then in case of any breach or default of the said Contract by

any of the parties to the JointVenture, the party(s) will be fully responsible for the successful performance

of the Contract and to carry out all the obligations and responsibilities under the Contract in accordance

with the requirements of the Contract.

Further ,if the Owner suffers any loss or damage on account of any breach in the Contract or any shortfall

in the performance of the equipment in meeting the performances guaranteed as per the specification in

terms of the Contract, the Party(s) of these presents will promptly make good such loss or damages

caused to the Owner, on its demand without any demur. It shall not be necessary or obligatory for the

Owner to proceed against lead Partner to these presents before proceed ing against or dealing with the

other Party(s), the Owner can proceed against any of the parties who shall be jointly and severally liable

for the performance and all other liabilities /obligations under the Contract to the Owner.

The financial liability of the Parties of the Deed of Undertaking to the Owner in the event of award of

Contract on the Joint Venture, with respect to any of the claims arising out of the performance or non-

performance of the obligations set forth in the Deed of Undertaking, read in conjunction with the relevant

conditions of the Contract shall, however not be limited in any way so as to restrict or limit the liabilities

or obligations of any of the Parties of the Deed of Undertaking.

Page 77: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 18 of 26

It is expressly understood and agreed between the Parties to this Letter of Intent that the responsibilities

and obligations of each of the Parties shall be as delineated in Appendix-I (to be suitably appended by the

Parties along witht his Letter of Intent in its bid).It is further undertaken by the parties that the above

sharing of responsibilities and obligations shall not in any way be a limitation of joint and several

responsibilities of the Parties under the Contract in the event of award on JointVenture.

It is also understood that this Letter of Intent is provided for the purposes of undertaking joint and several

liabilities of the partners to the Joint Venture for submission of the bid and performance of the Contract if

awarded and that this Letter of Intent shall not be deemed to give rise to any additional liabilities or

obligations ,in any manner or any law, on any of the Parties to this Letter of Intent or on the Joint

Venture, other than the express provisions of the Contract.

This Letter of Intent shall be construed and interpreted in accordance with the provisions of the Contract.

In case of an award of a Contract, we the parties to this Letter of Intent do hereby agree that we

shall enter into Joint Venture Agreement as per proforma submitted with the Bid which will be

legally binding on all partners and we shall be jointly and severally responsible for furnishing a

Contract performance security from a bank in favor of the Owner in the currency/currencies of the

Contract.

It is further agreed that this Letter of Intent shall be irrevocable and shall for man integral part of the bid.

It shall be effective from the date first mentioned above for all purposes and intents.

IN WITNESS WHERE OF, the Parties to this Letter of Intent have through their authorized

representatives executed these presents and affixed Common Seals of their companies, on the day,

month and year first mentioned above.

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For LeadPartner (PartyNo.-1) For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

WITNESS:

Page 78: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 19 of 26

I…………………………………….

II…………………………………….

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For Party No.-2 For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

WITNESS:

I…………………………………….

II…………………………………….

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For Party No.-3 For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

WITNESS:

I…………………………………….

II…………………………………….

Page 79: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 20 of 26

Annexure A

FORM OF POWER OF ATTORNEY FOR JOINT VENTURE

(On Non-judicial Stamp Paper of Appropriate value ,if required asper laws of the country of the bidder, to be purchased in the Name of Joint Venture)

KNOW ALL MEN BY THESE PRESENTS THAT WE, the Partners whose details are given hereunder.................................................................................have formed a Joint Venture under the laws of ...........................................(*)/ intend to form a Joint Venture (*) [(*) delete whichever is not applicable] and having our Registered Office(s) / Head Office(s) at...............................................(herein after called the' Joint Venture 'which expression shall unless repugnant to the context or meaning thereof, includeits successors, administrators and assigns) acting through M/s ....................................................... being the Partner in-charge do hereby constitute, nominate and appoint M/s........................................................ a Company incorporate under the laws of.........................................................and having its Registered / Head Office at...........................................as our duly constituted lawfull Attorney (hereinafter called "Attorney"or"Authorized Representative" or" Partner In-charge") to exercise all or any of the powers for and on behalf of the Joint Venture in regard to work for the bids for which have been invited by………………………………..,………………………..(hereinafter called the Owner ‘Owner’) to undertake the following acts:

i) To sign and submit proposal and participate in the aforesaid Bid Specification of the Owner on behalf of the "JointVenture".

ii) To negotiate with the Owner the terms and conditions for award of the Contract pursuant to the aforesaid Bid and to sign the Contract with the Owner for and on behalf of the "JointVenture".

iii) To do any other act or submit any document related to the above.

iv) To receive, accept and execute the Contract for and on behalf of the "Joint Venture".

Page 80: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 21 of 26

For the above purpose, the person(s) authorized by the Partner In-charge shall be the person(s) authorized to act on behalf of the "JointVenture" as per the Power of Attorney given to him/her/them by the Partner In-Charge,

It is clearly understood that all the partners of the joint venture shall be liable jointly and severally for the execution of the Contract in accordance with the Contract terms and the Partner In-charge (LeadPartner) shall ensure performance of the Contract(s) and if one or more Partner fail to perform the irrespective portions of the Contract(s), the same shall be deemed to be a default by all the Partners.

It is expressly understood that this Power of Attorney shall remain valid binding and irrevocable till completion of the Design Build as well as the Operations and Maintenance Period in terms of the Contract.

The Joint Venture hereby agrees and undertakes to ratify and confirm all the what so ever the said Attorney / Authorized Representatives / Partner in-charge quotes in the bid, negotiates and signs the Contract with the Owner and / or proposes to act on behalf of the Joint Venture by virtue of this Power of Attorney and the same shall bind the Joint Venture as if done by itself.

IN WITNESS THEREOF the Partners Constituting the Joint Venture as afore said have executed these presents on this ...........day of .......................under the Common Seal(s) of their Companies.

For and on behalf of the

Partners of Joint Venture

The Common Seal of the above Partners of the Joint Venture:

The Common Seal has been affixed there unto in the presence of: WITNESS

1. Signature......................................................

Name.......................................................... Designation........................................................... Occupation.................................................

2. Signature.....................................................

Name.........................................................

Designation................................................................ Occupation..........................................................

Page 81: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 22 of 26

Annexure A

FORM OF UNDERTAKING BY THE JOINT VENTURE PARTNERS

(On Non-Judicial Stamp Paper of Appropriate Value, if required as per laws of the country of the

bidder, to be purchased in the Name of Joint Venture)

THIS JOINT DEED OF UNDERTAKING executed on this ..........dayof .......Two

Thousand and ..................by ....... a company incorporated under the laws of ............... and

having its Registered Office at........................ (hereinafter called the "PartyNo.1. which

expression shall include its successors, executors and permitted assigns) and M/s ............... a

company incorporated under the laws of .................. and having its Registered Office at

............... (hereinafter called the "PartyNo.2" which expression shall include its successors,

executors and permitted assigns) and M/s ..........................a Company incorporated under the

laws of .................... and having its Registered Office at ................(hereinafter called the

"PartyNo.3" which expression shall include its successors, executors and permitted assigns) for

the purpose of making a bid and entering into a contract [hereinafter called the "Contract" (in

case of award) against the work to design and build Sewage Treatment Plant and all Appurtenant

Structures and Allied Works, and O & M of Complete Works associated with

………………………………(hereinafter called the"Owner").

WHEREAS the Party No.1, Party No.2 and Party No.3 have entered into an Agreement

dated................

AND WHEREAS the Owner invited bids asper the above mentioned Specification to design and

build Sewage Treatment Plant and all Appurtenant Structures and Allied Works, and O & M of

Complete Works stipulated in the bidding documents.

Page 82: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 23 of 26

AND WHEREAS ITB Clause 3.6 and Annexure A Part h Qualification Criteria forming part of

the bidding documents, inter-alia ,stipulate that an undertaking of two or more qualified

partners, meeting the requirements of ‘Qualification Criteria of the Bidder' ,as applicable may

bid ,provided ,the Joint Venture fulfills all other requirements under Clause 5.7 ‘Qualification of

the Bidder’ and in such a case, the Letter of Bid (Bid Form) shall be signed by the Partner- In

Charge so as to legally bind all the Partners of the Joint Venture, who will be jointly and

severally liable to perform the Contract and all obligations hereunder.

The above clause further states that this Undertaking shall be attached to the bid and the Contract

performance guarantee will be as per the format enclosed with the bidding document without any

restrictions or liability for either party.

AND WHEREAS the bid is being submitted to the Owner vide proposal No........dated...... by

Party No.1 based on this Undertaking between all the parties; under these presents and the bid in

accordance with the requirements of ITB Clause 3.6 and Annexure A Part h Qualification

Criteria, has been signed by all the parties.

NOW THIS UNDERTAKING WITNESSETH AS UNDER:

In consideration of the above premises and agreements all the parties of this Deed of

Undertaking do hereby declare and undertake:

In requirement of the award of the Contract by the Owner to the Joint Venture Partners, we, the

Parties do hereby undertake that M/s......... the Party No.1, shall act as Lead Partner and further

declare and confirm that we the parties to the Joint Venture shall jointly and severally be bound

unto the Owner for the successful performance of the Contract and shall be fully responsible to

design and build Sewage Treatment Plant and all Appurtenant Structures and Allied Works, and

O & M of Complete Works in accordance with the Contract.

In case of any breach or default of the said Contract by any of the parties to the Joint Venture,

the parties do hereby undertake to be fully responsible for the successful performance of the

Contract and to carry out all the obligations and responsibilities under the Contract in accordance

with the requirements of the Contract.

Page 83: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 24 of 26

Further, if the Owner suffers any loss or damage on account of any breach in the Contract or any

shortfall in the performance of the equipment in meeting the performances guaranteed as per the

specification in terms of the Contract, the Party(s) of these presents undertake to promptly

make good such loss or damages caused to the Owner, on its demand without any demur. It

shall not be necessary or obligatory for the Owner to proceed against Lead Partner to these

presents before proceeding against or dealing with the other Party(s), the Owner can proceed

against any of the parties who shall be jointly and severally liable for the performance and

all other liabilities/obligations under the Contract to the Owner.

The financial liability of the Parties of this Deed of Undertaking to the Owner, with respect to

any of the claims arising out of the performance or non-performance of the obligations set

forth in this Deed of Undertaking, read in conjunction with the relevant conditions of the

Contract shall, however not be limited in any way so as to restrict or limit the liabilities or

obligations of any of the Parties of this Deed of Undertaking.

It is expressly understood and agreed between the Parties to this Undertaking that the

responsibilities and obligations of each of the Parties shall be as delineated in Appendix - I (to be

suitably appended by the Parties along with this undertaking in its bid). It is further undertaken

by the parties that the above sharing of responsibilities and obligations shall not in any way be a

limitation of joint and several responsibilities of the Parties under the Contract.

It is also understood that this Undertaking is provided for the purposes of undertaking joint

and several liabilities of the partners to the Joint Venture for submission of the bid and

performance of the Contract if awarded and that this Undertaking shall not be deemed to give

rise to any additional liabilities or obligations, in any manner or any law, on any of the Parties to

this Undertaking or on the Joint Venture, other than the express provisions of the Contract.

This Undertaking shall be construed and interpreted in accordance with the provisions of the

Contract.

In case of an award of a Contract, we the parties to this Deed of Undertaking do hereby agree

that we shall be jointly and severally responsible for furnishing a Contract performance security

from a bank in favour of the Owner in the currency / currencies of the Contract.

Page 84: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 25 of 26

It is further agreed that this Deed of Undertaking shall be irrevocable and shall for man integral

part of the bid and shall continue to been forceable till the Owner discharges the same or upon

the completion of the Contract in accordance with its provisions, which ever is earlier.It shall be

effective from the date first mentioned above for all purposes and intents.

IN WITNESS WHERE OF, the Parties to this Deed of Undertaking have through their

authorized representatives executed these presents and affixed Common Seals of their

companies, on the day, month and year first mentioned above.

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For LeadPartner (Party No.-1) For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

For Party No.-2

For and on behalf of M/s.......................

WITNESS:

I…………………………………….

II…………………………………….

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For Party No.-2 For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

Page 85: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 26 of 26

WITNESS:

I…………………………………….

II…………………………………….

Common Seal of ............................ has been affixed in my/ our presence pursuant to Board of Director's Resolution dated ...............

For Party No.-3 For and on behalf of M/s

Name........................................

Designation ..................................

Signature..................................... Signature of the authorized representative)

WITNESS:

I…………………………………….

II…………………………………….

Page 86: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Annex B to the Bidding Documents

The Draft Contract

(i) Form of Contract (ii) General Conditions of the Contract (iii) Appendices to the General Conditions

Page 87: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 4

[Name of Owner]

FORM OF CONTRACT FOR A CONTRACT TO

SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK INCLUDES (I) DESIGN ANDBUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY AND

ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE

WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

[DATE-04-12-2016]

Page 88: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 4

CONTRACT TO DESIGN, BUILD and

OperateSeptage Management in Shillong covering Shillong Municipal area. The work includes (i) design and BuildSeptage waste treatment plant of capacity 115m3/day and all appurtenant

structures and allied works complete including testing, Trial run for 3 Months and commissioning of the plant to the satisfaction of the Engineer (period of completion - 12 months); (ii) operation & maintenance of the complete works of septage waste treatment plant and allied works for a period

of 5 years at Mawiong, Shillong, State of Meghalaya, India.

FORM OF CONTRACT

THIS CONTRACT is made and entered into this ____ day of _______, [Year]

Between

[Name of Owner], a corporation incorporated under the laws of [Country of Owner] and having its principal place of business at [Address of Owner]

(hereafter the “Owner”)

– and –

[Name of bidder Company goes here] incorporated under the laws of [place of incorporation] with its principal place of business at [Address of the bidder]

(hereafter the “bidder”)

– and –

[Name of the bidder’sParent Company or any other entities the Owner may be required to be parties to the Contract]

WHEREAS:

1. The Owner has the jurisdiction to enter into the Contract, as defined in Section 1.1 below, pursuant to

the Applicable Law;

2. The Owner has received all requisite approvals necessary and has conformed with all requisite laws in

accordance with the Applicable Law to permit theOwner to enter into the Contract;

3. The Owner desires to engage the bidder to [design, build and operate& maintainthe

septage/sewerage treatment plant for 5 years and ensure the effectiveness and sustainabilityof the said facility];

4. The bidder has represented to the Owner that it has the skills and ability to design, build, manage,

operate, and maintain the sewerage treatment plant in an economical and effective manner with [reduced O & M cost] and agrees to do so upon and subject to the terms and conditions of the Contract Documents;

Page 89: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 4

5. The bidder responded to the Bidding Documents dated [xx.xx.xx] organized by the Government of

Meghalaya and was selected as the recommended bidder to fulfil the Design-Build and Operating Services set out in the Technical Standards Appendix;

6. The bidder has the corporate capacity and authority to enter into the Contract; and

7. The bidder’s parent company [or shareholders of a joint venture company] has guaranteed the

Contract as provided in the Contract; NOW THEREFORE, in consideration of the mutual covenants and Agreements hereinafter set forth, the Owner and the bidder agree as follows:

ARTICLE 1 - CONTRACT DOCUMENTS

1.1 Contract Documents

This Contract to Design, Build, Finance and Operate a Septage/Sewage Treatment Facility between the Owner and the Operator (the “Contract”) consists of the following documents (collectively, the “Contract Documents”), and each of the following shall be read and construed as an integral part of the Contract:

(a) Form of Contract (b) Letter of Acceptance (c) Corrigenda Nos. ___ (d) Minutes of Pre bid conference dated _____ (e) Special Conditions of Contract (Appendix 1 to the General Conditions of Contract) (f) General Conditions of Contract and (g) Schedule “2” – Design Build Services (“the Design Build Services Schedule”) (h) Schedule “3” – Operations and Maintenance Services (“the Operations and Maintenance

Services Schedule”) (i) Schedule “4” – Description of Site and Service Area (j) Schedule “5” – Operator’s Price Schedule (k) Schedule “6” – Terms and Procedure of Payment (l) Schedule “7” –Liquidated Damages - Operations (m) Schedule “8” – Price Adjustment (n) Schedule “9” - Schedule of Performance Guarantee (o) Schedule “10” – Technical Specifications

(p) Remaining appendices to the General Conditions of Contract

Page 90: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 4

1.2 Order of Precedence

(1) In the event of any ambiguity or conflict between the Contract Documents listed in

Section 1.1 of this Form of Contract, the order of precedence shall be the order in which the

Contract Documents are listed in Section 1.1 of this Form of Contract.

(2) Notwithstanding Section 1.2(1) of this Form of Contract and any other term or

condition in the Contract Documents, if any statement or provision in Appendix 11 – bidder’s

Bid of the General Conditions of Contract, is not consistent with or conflicts with any other term

or condition in the remainder of the Contract Documents, the remainder of the Contract

Documents shall govern.

1.3 Definitions

Capitalized words and phrases used herein shall have the same meanings as are ascribed to them in the

General Conditions of Contract and Appendices to the General Conditions of Contract.

ARTICLE 2 - OPERATOR’S COMPENSATION AND TERMS OF PAYMENT

2.1 Bidder’s Compensation

The Owner hereby agrees to pay to the bidder the Contract Price, in consideration of the performance by

the bidder of its obligations hereunder, and the Contract Price is: [Insert amount in words and figures.

Note that the Design-Build Price(for Design-Build Services) will be for a total amount while the Monthly

Operations Payments (for Operations Services) will be a monthly amount for each month the

bidderoperates the Plant], as specified in the Bidder’s Price Schedules or such other sums as may be

determined in accordance with the terms and conditions of the Contract.

2.2 Terms of Payment

The terms and procedures of payment by which the Owner will compensate the bidder are set out in the General Conditions of the Contract.

ARTICLE 3 - EFFECTIVE DATE AND STARTING DATES

3.1 Effective Date and Starting Date

The Effective Date, the Design-Build Starting Date and O & M Starting Date for the Contract shall be determined in accordance with the General Conditions of the Contract.

Page 91: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 4

IN WITNESS WHEREOF the Owner and the bidder have caused this Form of Contract to be duly executed by their duly authorized representatives.

EXECUTED as of the date first written above.

[OWNER]

By: ____________________________________ Name: ____________________________________ Title: ____________________________________ Witness: ____________________________________

[THE Bidder]

By: ____________________________________ Name: ____________________________________ Title: ____________________________________ Witness: ____________________________________

[PARENT(S) OF THE bidder]

By: ____________________________________ Name: ____________________________________ Title: ____________________________________ Witness: ____________________________________

Page 92: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 59

APPENDIX B to the bidding document

The Draft Contract

SEPTAGE WASTE MANAGEMENT for Shillong

UNDER AMRUT

AGREEMENT NO. NCB/SWM/SMB/

General Conditions of Contract (GCC)

GENERAL CONDITIONS FOR A CONTRACT TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 93: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 59

TABLE OF CONTENTS

SEPTAGE WASTE MANAGEMENT FOR SHILLONG T 1

A. CONTRACT AND INTERPRETATION 6

AR T I C L E 1 - C ONT R AC T AND I NT E R PR E T AT I ON 6

1.1 Definitions 6 1.2 Contract Documents 10 1.3 Interpretation 11

1.3.1 Language 11 1.3.2 Singular or Plural 11 1.3.3 Headings 11 1.3.4 Persons 11 1.3.5 Incoterms 11 1.3.6 Entire Agreement 11 1.3.7 Amendment 11 1.3.8 Number of Days 11 1.3.9 Independent Contractor 12 1.3.10 Joint Venture or Consortium 12 1.3.11 Non-waiver 12 1.3.12 Severability 13 1.3.13 Country of Origin 13 1.3.14 Survival of Obligations 13

1.4 Notice 13 1.5 Governing Law 13 1.6 Settlement of Disputes 14

1.6.1 Adjudicator 14 1.6.2 Arbitration 14 1.6.3 Obligations During Arbitration 15

1.7 Assignment 15 1.8 Contract Records, Accounting and Auditing 15

1.8.1 Contract Records 15 1.8.2 Accounting 16 1.8.3 Auditing the Operator’s Own Accounts and the Contract Records 16 1.8.4 Operator’s Audited Accounts 16 1.8.5 Inspections and Audit by the Bank 16

1.9 Operator’s Claims During the Design-Build Period 16

B. SUBJECT MATTER OF THE CONTRACT 19

AR T I C L E 2 - C ONT R AC T T E R M , T I M I NG AND C OM PL E T I ON 19

2.1 General 19 2.1.1 Effectiveness of Contract 19 2.1.2 Expiration of Contract 19

Page 94: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 59

2.1.3 Commencement of Services 19 2.2 Design-Build Period and New Operations Period 19 2.3 Design-Build Period – Commencement, Delays and Suspension 20

2.3.1 Commencement of the Design-Build Services 20 2.3.2 Time for Completion 20 2.3.3 Design-Build Time Schedule 20 2.3.4 Extension of the Time for Completion 21 2.3.5 Rate of Progress 21 2.3.6 Delay of Completion – Liquidated Damages - Delay 21 2.3.7 Design-Build Period – Special Operations Requirements Comment: Not applicable? 22

2.4 New Operations Period 22 2.4.1 Commencement of the Operations - Services 22 2.4.2 Services After the End Date 22 2.4.3 Extension of the Contract 22

AR T I C L E 3 - OB L I G AT I ONS OF T H E OPE R AT OR 23

3.1 General – Services and Standards of Performance 23 3.2 Law Governing Services 23 3.3 Conflict of Interest 23 3.4 Plant and Equipment, Operator’s Equipment (Design-Build) and Operations Equipment (Operations) 24 3.5 Site Information and Investigation 24 3.6 Access to the Site and New Facility 25

AR T I C L E 4 - OB L I G AT I ONS OF T H E OW NE R 26

4.1 Owner’s Assistance to the Operator 26 4.2 Access to the Site and New Facility 26 4.3 Reviews and Approvals of Submissions 26

C. PAYMENT 27

AR T I C L E 5 - C ONT R AC T PR I C E AND PAY M E NT 27

5.1 Contract Price 27 5.2 Terms of Payment 27 5.3 Performance Incentive Compensation 27 5.4 Liquidated Damages - Operations 27 5.5 Securities 28

5.5.1 Performance Security 28 5.5.2 Advance Payment Security 28

5.6 Taxes and Duties 28

D. INTELLECTUAL PROPERTY 30

AR T I C L E 6 - C OPY R I G H T – DE SI G N-B UI L D DOC UM E NT S 30

6.1 Copyright – Design-Build Documents 30 6.2 Confidentiality 30

Page 95: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 59

E. EXECUTION OF THE SERVICES 32

AR T I C L E 7 - C ONT R AC T ADM I NI ST R AT I ON AND SUPE R V I SI ON DUR I NG T H E DE SI G N-B UI L D AND NE W OPE R AT I ONS PE R I ODS 32

7.1 General 32 7.2 Design-Build Supervision 32

7.2.1 Supervision During the Design-Build Period 32 7.2.2 Design-Build Engineer’s Duties and Authority (Design-Build Period) 32 7.2.3 Delegation by the Design-Build Engineer 33 7.2.4 Instructions of the Design-Build Engineer 33 7.2.5 Replacement of the Design-Build Engineer 33 7.2.6 Determinations by the Design-Build Engineer 34

7.3 Operations Supervision 34 7.3.1 Supervision During the New Operations Period 34 7.3.2 The Owner shall appoint its Representative for supervision of the “Operations’ during the O & M period of 5 years in accordance with SCC clause 8.1.1 (1) (b). 34

AR T I C L E 8 - R E PR E SE NT AT I V E S, ST AF F AND SUB C ONT R AC T I NG 35

8.1 Representatives 35 8.1.1 Owner’s Representative 35 8.1.2 Operator’s Representative 35

8.2 Operator’s Superintendence 36 8.3 Operator’s Personnel 36 8.4 Replacement of Operator’s Personnel 37 8.5 Existing Staff - Not Applicable 37 8.6 Subcontractors 37

F. LIABILITY AND RISK DISTRIBUTION 38

AR T I C L E 9 - L I AB I L I T Y AND R I SK DI ST R I B UT I ON 38

9.1 Defect Liability - Comment: to discuss whether this clause can be deleted. 38 9.2 Limitation of Liability 39 9.3 Transfer of Ownership and Existing Equipment and Materials 39

9.3.1 Transfer of Ownership 39 9.3.2 Existing Equipment and Materials Comment: To discuss whether this is relevant or it should be deleted. 40

9.4 Care of the Site and New Facility 40 9.5 Indemnification 41 9.6 Insurance 42 9.7 Unforeseeable Physical Conditions 43 9.8 Force Majeure 44 9.9 War Risks 46 9.10 Change in Laws and Regulations 47 9.11 Patent Indemnity 47

9.11.1 Indemnity by Operator 47 9.11.2 Notice of Claim 47 9.11.3 Indemnity byOwner 48

9.12 Functional Guarantees 48

Page 96: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 59

G. CHANGE IN CONTRACT ELEMENTS 49

AR T I C L E 10 - C H ANG E I N C ONT R AC T E L E M E NT S 49

10.1 Change to the Design-Build Services 49 10.1.1 Introducing a Change 49 10.1.2 Changes Originating from Owner 49 10.1.3 Changes Originating from Operator 51 10.1.4 Payment in Applicable Currencies 51 10.1.5 Design-Build Period 51

10.2 Change to the Operations Services 51

AR T I C L E 11 - SUSPE NSI ON AND T E R M I NAT I ON 52

11.1 Suspension 52 11.1.1 Suspension by the Owner 52 11.1.2 Suspension by the Operator 52

11.2 Termination 53 11.2.1 Termination for Owner’s Convenience 53 11.2.2 Payment upon Termination by the Owner for Convenience 54 11.2.3 Termination for Operator’s Default 54 11.2.4 Payment upon Termination for Operator’s Default 56 11.2.5 Termination by Operator 57 11.2.6 Payment upon Termination by Operator 58 11.2.7 General Provisions - Termination 58

Page 97: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 59

G E NE R A L C ONDI T I ONS OF C ONT R AC T

A . C ONT R AC T AND I NT E R PR E T AT I ON

AR T I C L E 1 - CONTRACT AND INTERPRETATION

1.1 Definitions

Unless the context otherwise requires, the following terms wherever used in this Contract have the following meanings:

“Adjudicator” means the person that is named in the SCC;

“Applicable Law” means the laws and any other instruments having the force of law in the Country specified in the SCC, as they may be issued and in force from time to time, including any decree of the President or government of the Country;

“Appointing Authority” is the authority specified in the SCC;

“Authorities” means the Owner and the Country as specified in the SCC;

“Background Information Document” means the Background Information Document provided to the Operator by the Owner during the bidding process that preceded this Contract;

“Bidding Documents” means the documents issued by the Owner in respect of the bidding process for the selection of an operator to design, build and operate the New Facility and to perform the Services;

“Capital Investment Program” means the capital investment program of the Owner, if any, referred to in OSA Section 10.2(2);

“Change” is defined in GC Section 10.1.1(1);

“Change Order” is defined in GC Section 10.1.2(4);

“Completion” means that the New Facility and all Design-Build Services have been completed operationally and structurally and put in a tight and clean condition in accordance with the Technical Standards Appendix, and the Operator is entitled to have a Completion Certificate issued in respect of the New Facility, or part thereof, in accordance with DBSA Section 6.2;

“Completion Certificate” means a certificate issued by the Design-Build Engineer in accordance with DBSA Section 6.2;

“Contingency Fund” means the fund established pursuant to OSA Section 10.1.2(1);

“Contract” means the agreement between the Owner and the Operator which consists of the Contract Documents;

“Contract Documents” means the Form of Contract, General Conditions, and all appendices to the General Conditions as set out in GC Section 1.2;

Page 98: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 56

“Contract Price” is defined in Section 2.1 of the Form of Contract;

“Contract Records” is defined in GC Section 1.8.1(1);

“Contract Term” means the term of the Contract, including any renewals approved by theOwner, commencing on the Effective Date and continuing to, and including, the End Date;

“Costs” means all expenditures reasonably incurred, or to be incurred, by the Operator including overhead but excluding profit;

“Country” means the country specified in the SCC;

“Country of Origin” means the countries and territories eligible under the rules of the World Bank as defined under the Guidelines: Procurement under IBRD Loans and IDA Credits& Grants 2011;

“Customers” means all persons to which the Operator provides services, including those customers in existence as of the New Operations Starting Date and persons who become customers after the New Operations Starting Date;

“Data Room” means the data room which may be established by the Owner in the bidding process as set out in the Bidding Documents;

“DBSA Section” means Design-Build Services Appendix Section;

“Defect Liability Period” means the period of validity of the warranties given by the Operator during which the Operator is responsible for defects with respect to the New Facility, or the relevant part thereof, as set out in GC Section 9.1(2);

“Design-Build Documents” means the plans, specifications, designs, models, electronic models and other documents and materials relating to the design and construction of the Site and New Facility as may be set out or contemplated in the Design-Build Services Appendix or agreed to by the Parties from time to time during the Contract Term;

Design-Build-Operations Engineer” means the Consultant or Owner’s representative retained by the Owner to supervise the Operator, in accordance with the Contract Documents, in carrying out the Design-Build and Operations Services

“Design-Build Period” is defined in GC Section 2.2(a);

“Design-Build Services” means the design-build services to be performed by the Operator as contemplated by the General Conditions and the Design-Build Services Appendix;

“Design-Build Starting Date” is defined in GC Section 2.1.3(1);

“Effective Date” means the date on which this Contract comes into force and effect pursuant to GC Section 2.1.1;

“End Date” is defined in GC Section 2.1.2;

“Existing Facility” means the operational landfill on the Site as it exists on the Design-Build Starting Date;

“Existing Operations Services” is defined in DBSA Section 4.1;

Page 99: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 56

“Extension Date” is defined in GC Section 2.4.3;

“Force Majeure” is defined in GC Section 9.8(1);

“GC Section” means General Conditions Section;

“IDA” means the International Development Agency;

“including”means including without limitation and “includes” means includes without limitation, unless expressly stated otherwise;

“Liquidated Damages – Delay” is defined in GC Section 2.3.6(2);

“Manager” is defined in GC Section 8.2(3);

“Quarterly Operations Payment” is defined in Section 1.4 of the Terms and Procedures of Payment Appendix;

“New Facility” means the Septage/Sewerage Treatment Plant designed and built by the Operator pursuant to this Contract;

“New Operations Period” is defined in GC Section 2.2(b);

“New Operations Starting Date” is defined in GC Section 2.1.3(2);

“Operational Acceptance” means the acceptance by the Owner of the New Facility, or part thereof, in accordance with DBSA Section 7.3;

“Operations Services” means the Operations Services to be performed by the Operator as contemplated by the General Conditions and the Operations Services Appendix;

“Operator” means the Sewerage Treatment facility contractor and operator retained by theOwner to carry out the Services and is the Party named as the Operator in the Form of Contract;

“Operator’s Equipment (Design-Build)” means all machinery, apparatus, vehicles and other equipment required for the execution and completion of the Design-Build Services and the remedying of any defects, but does not include material, machinery, apparatus and other equipment forming part of the Plant and Equipment of the New Facility;

“Operator’s Equipment (Operations)” means all things of any kind whatsoever, including the equipment, materials, supplies, vehicles and consumables required to operate, maintain and repair the Site and New Facility;

“Operator’s Personnel” is defined in GC Section 8.3(1);

“Operator’s Representative” is defined in GC Section 8.1.2(1);

“OSA Section” means Operations Services Appendix Section;

“Owner” means the Party named as Owner in the Form of Contract;

“Owner’s Representative” is defined in GC Section 8.1.1(1);

Page 100: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 56

“Parent” means the parent company of the Operator, if any;

“Party” means theOwner or the Operator, as the case may be, and “Parties” means both of them;

[Note: If a Parent signs the Contract, the Parent will be included in the definition of “Parties”.]

“Performance Incentive Compensation” is defined in Performance Incentive Compensation Appendix;

“Performance Security” is defined in GC Section 5.4.1(1);

“Plant and Equipment” means the permanent plant, equipment, machinery, apparatus, articles and things of all kinds to be provided and intended to permanently form or forming part of the New Facility;

“Septage: The settled solid matter in semi-solid condition usually a mixture of solids and water settled at the bottom of septic tank. It has an offensive odour, appearance and is high in organics and pathogenic microorganisms

“Services” means the Design-Build Services and the Operations Services to be performed by the Operator as set out in the General Conditions and the Appendices to the General Conditions;

“Sewage Treatment Plant” or “STP” means the new plant for treatment and processing of the septage collected including safe disposal of treated sludge as well as wastewater which shall be designed, built, operated and maintained by the Operator in accordance with the provisions of this Contract

“Shareholder” means any of the shareholders of the joint venture company if the Operator is a joint venture company;

“Site” means the physical area as set out in the Site Appendix identified for the location of the New Facility;

“Site Information” is defined in GC Section 3.5(1);

“Subcontract” means any contract, whether written or verbal, entered into by the Operator and a Subcontractor for the performance of any part of the Services;

“Subcontractor” means any person or entity to which the Operator subcontracts or sub-consults any part of the Services in accordance with the provisions of GC Section 8.6, including any person or entity engaged for the supply of any Plant and Equipment, Operator's Equipment (Design-Build) or Operator's Equipment (Operations) or for the provision of any Services;

“Submission Deadline” means the date for the submission of bids, as stated or awarded by the Bidding Documents;

“Subsequent Operator” means the operator that is to assume the provision of the Services upon termination or completion of the Contract and may include one of the Authorities;

“Taxes” is defined in GC Section 5.6;

“Technical Standards” is defined in the Technical Standards Appendix;

“Tests on Completion” means those tests set out in Attachment 1 to the Technical Standards Appendix as conducted pursuant to DBSA Section 6.2(1);

Page 101: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 56

“Testing, Trial and Commissioning Period” shall have the meaning as defined in Clause 2.3.2 of Special Conditions of Contract, Schedule 2;

“Third Party” means any person or entity other than the Parties;

“Time for Completion” is defined in GC Section 2.3.2;

“Time Schedule” is defined in GC Section 2.3.3(1);

“Transition Assistance” is defined in GC Section 2.4.2;

“TSA Section” means Technical Standards Appendix Section;

“Unforeseeable” means not reasonably foreseeable on the Submission Deadline by an experienced operator that conducted or should have conducted the inspections and examinations or who knew or should have known the information described in GC Section 3.5; and

“War Risks” is defined in GC Section 9.9(1).

1.2 Contract Documents

Subject to the Form of Contract provisions, all documents forming part of the Contract, and all parts thereof, are intended to be correlative, complementary and mutually explanatory. The Contract shall be read as a whole. The following appendices which are incorporated by reference into the Contract shall be referred to as follows:

Appendix “1” – Special Conditions of Contract (the “SCC”)

Appendix “2” - Technical Specifications consisting of,

Appendix “2A” – Design-Build Services (the “Design-Build Services Appendix”)

Appendix “2B” – Operations Services (the “Operations Services Appendix”)

Appendix “2C” – Technical Standards (the “Technical Standards Appendix”)

Appendix “3” – Site Map

Appendix “4” – Operator’s Bid (the “Operator’s Bid”) including the Technical Proposal, Price Proposal

Appendix “5” – Operator’s Price Schedule

Appendix “6” – Terms and Procedure of Payment

Appendix “7” – Liquidated Damages – Operations

Appendix “8” – Price Adjustment

Appendix “9’ - Schedule of Performance Guarantee

Page 102: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 56

1.3 Interpretation

1.3.1 Language

(1) All Contract Documents, all correspondence and communications to be given, and all other documentation to be prepared and supplied under the Contract shall be written in the language specified in the SCC and the Contract shall be construed and interpreted in accordance with that language.

(2) If any of the Contract Documents, correspondence or communications are prepared in any language other than the governing language under GC Section 1.3.1(1), the translation of such documents, correspondence or communications into the governing language shall prevail in matters of interpretation.

1.3.2 Singular or Plural

The singular shall include the plural and the plural shall include the singular except where the context otherwise requires.

1.3.3 Headings

The headings in the Contract Documents are included for ease of reference and shall neither constitute a part of the Contract nor affect its interpretation.

1.3.4 Persons

Words importing persons or entities shall include firms, corporations and government entities.

1.3.5 Incoterms

Unless inconsistent with any provision of the Contract, the meaning of any trade term and the rights and obligations of the Parties thereunder shall be prescribed by Incoterms 2010. Incoterms means international rules for interpreting trade terms published by the International Chamber of Commerce, 38 Cours Albert 1er, 75008 Paris, France.

1.3.6 Entire Agreement

This Contract constitutes the entire agreement between theOwner and the Operator with respect to the subject matter of the Contract and supersedes all communications, negotiations and agreements, whether written or oral, made by the Parties with respect thereto made prior to the date of the Contract.

1.3.7 Amendment

No amendment or other variation of the Contract shall be effective unless it is in writing, is dated, expressly refers to the Contract and is signed by a duly authorised representative of each Party to the Contract.

1.3.8 Number of Days

Except as expressly stated to the contrary elsewhere herein, in computing the number of days for the purposes of the Contract all days shall be counted, including Saturdays, Sundays and legal holidays in the Country, provided, however, that if the final day of any period shall fall on a Saturday,

Page 103: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 56

Sunday, or legal holiday in the Country, then the final day shall be deemed to be the next day which is not a Saturday, Sunday or legal holiday in the Country.

1.3.9 Independent Contractor

(1) The Operator shall be an independent contractor in its performance of the Contract. The Contract does not create any agency, partnership, joint venture or other joint relationship between the Ownerand the Operator or its Shareholders.

(2) Subject to the provisions of the Contract, the Operator shall be solely responsible for the manner in which the Contract is performed. All employees, agents, representatives or Subcontractors engaged by the Operator in connection with the performance of the Contract shall be under the complete control of the Operator and shall not be deemed to be employees of the Owner, and nothing contained in the Contract, or in any Subcontract awarded by the Operator, shall be construed to create any contractual relationship or legal obligation between the Operator’s employees, agents, representatives or Subcontractors and theOwner.

1.3.10 Joint Venture or Consortium

(1) If the Operator consists of a joint venture company of more than one person, the Shareholders hereby authorise the representative named in the SCC to act on their behalf in exercising all the Shareholders’ and Operator’s rights and obligations toward theOwnerunder this Contract, including the receiving of approvals, consents, orders, certificates, instructions and payments from theOwner, amendment of the Contract and in all other matters under the Contract, including the settlement of disputes.

(2) If the Operator is a joint venture company of two or more persons, each Shareholder of the joint venture company and its parent companies, shall be jointly and severally bound to theOwnerfor the fulfilment of the provisions of the Contract by the Operator. Claims against the parent companies or the Shareholders as the case may be shall be subject to any legal defences available to the Operator, and to any limits on the liability of the Operator including those set out in GC Section 9.2.

(3) The composition, shareholding, control or constitution of the Operator shall be in accordance with the Operator’s Bid and shall not be altered without the prior consent of theOwner.

(4) The Shareholders shall maintain the type and amount of equity set out in the SCC.

1.3.11 Non-waiver

(1) Subject to GC Section1.3.11(2), no relaxation, waiver, forbearance, delay or indulgence by either Party in enforcing any of the terms and conditions of the Contract or the granting of time by either Party to the other shall prejudice, affect or restrict the rights of that Party under the Contract, nor shall any waiver by either Party of any breach of Contract operate as waiver of any subsequent or continuing breach of Contract.

(2) To be a valid waiver, any waiver of a Party’s rights, powers or remedies under the Contract shall,

(a) be in writing;

(b) be dated and signed by the Owner’s or Operator’s Representative, whichever is granting such waiver; and

Page 104: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 13 of 56

(c) specify the right, power or remedy being waived and the extent to which it is being waived.

1.3.12 Severability

If any provision or condition of the Contract is prohibited or rendered invalid or unenforceable, such prohibition, invalidity or unenforceability shall not affect the validity or enforceability of any other provisions and conditions of the Contract.

1.3.13 Country of Origin

“Origin” means the place where the materials, equipment and other supplies for the New Facility are mined, grown, produced or manufactured, and from which the services are provided.

1.3.14 Survival of Obligations

Upon the termination or expiration of the Contract pursuant to the Contract, all rights and obligations of the Parties hereunder shall cease, except those noted in the SCC.

1.4 Notice

(1) All notices to be given under the Contract shall be in writing and shall be sent by personal delivery, courier or facsimile to the address for notice of the relevant Party as set out in the SCC and the following provisions apply:

(a) Any notice sent by facsimile shall be confirmed by the sender no later than two days after dispatch by a notice sent by courier;

(b) Any notice sent by courier shall be deemed to have been delivered 10 days after dispatch. In proving the fact of dispatch, it shall be sufficient to show that the envelope containing such notice was properly addressed, with proper payment for the courier, and conveyed to the courier service for transmission; and

(c) Any notice delivered personally or sent by facsimile shall be deemed to have been delivered on the date of dispatch.

(2) A Party may change its address for notice pursuant to this Contract by giving the other Party notice of change in accordance with this GC Section1.4.

(3) The Operator’s address for the purpose of giving notice pursuant to this GC Section 1.4 shall be in the Country named in the SCC.

(4) Notices shall be deemed to include any approvals, consents, instructions, orders, certificates and similar communications to be given under the Contract.

1.5 Governing Law

This Contract, its meaning and interpretation, and the relation between the Parties shall be governed by the Applicable Law.

Page 105: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 14 of 56

1.6 Settlement of Disputes

1.6.1 Adjudicator

(1) If any dispute of any kind whatsoever arises between the Owner and the Operator in connection with or arising out of the Contract including,

(a) any question regarding the existence, validity or termination of the Contract; and

(b) any matter related to the performance of the Services,

the Parties shall seek to resolve any such dispute or difference by mutual consultation. If the Parties fail to resolve such a dispute or difference by mutual consultation, the dispute shall be referred in writing, by either the Operator or the Owner, to the Adjudicator with a copy to the other Party or Parties.

(2) GC Section 1.6.1(1) shall apply,

(a) during the execution of the Services and after the completion of the Services; and

(b) before and after the termination, abandonment or breach of the Contract.

(3) The Adjudicator shall give its decision in writing to both Parties no later than 30 days after the referral of a dispute. If the Adjudicator has rendered its decision within the 30 day time limit, and no notice of intention to commence arbitration has been given by either the Owner or the Operator prior to the expiration of 60 days after the reference of the dispute to the Adjudicator, the Adjudicator’s decision shall become final and binding upon the Owner and the Operator. Any decision that has become final and binding shall be implemented by the Parties forthwith.

(4) The Adjudicator shall be paid a fee at the rate specified in the SCC plus reasonable expenditures incurred in the execution of its duties as Adjudicator, and these costs shall be divided equally between the Owner and the Operator.

(5) If the Adjudicator resigns or dies, or the Owner and the Operator agree that the Adjudicator is not fulfilling its functions in accordance with the provisions of the Contract, a new Adjudicator shall be jointly appointed by the Owner and the Operator. If the Owner and the Operator cannot agree on a new Adjudicator within 30 days after the resignation, death or removal of the existing Adjudicator, the new Adjudicator shall be appointed at the request of either Party by the Appointing Authority specified in the SCC.

1.6.2 Arbitration

(1) If either the Owner or the Operator is dissatisfied with the Adjudicator’s decision, or if the Adjudicator fails to give a decision within 30 days after a dispute being referred to it, then either the Owner or the Operator may, within 60 days after such reference, give notice to the other Party, with a copy for information to the Adjudicator, of its intention to commence arbitration, as hereinafter provided, as to the matter in dispute, and no arbitration in respect of this matter may be commenced unless such notice is given.

(2) Any dispute in respect of which a notice of intention to commence arbitration has been given, in accordance with GC Section 1.6.2(1), shall be finally settled by arbitration.

(3) Arbitration proceedings shall be conducted in accordance with the rules of procedure designated in the SCC.

Page 106: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 15 of 56

1.6.3 Obligations During Arbitration

Notwithstanding any reference to the Adjudicator or arbitration herein,

(a) the Parties shall continue to perform their respective obligations under the Contract unless they otherwise agree; and

(b) the Owner shall pay the Operator any monies due to the Operator.

1.7 Assignment

(1) The Operator shall not assign to any Third Party the Contract, or any part thereof, or any right, benefit, obligation or interest therein or thereunder without the prior consent of theOwner, which consent may not be unreasonably withheld.

(2) The Operator may assign, absolutely or by way of charge, any monies due and payable to it or that may become due and payable to it under the Contract.

(3) To be a valid assignment which has been approved by theOwner pursuant to GC Section 1.7(1), the assignment must,

(a) be in writing;

(b) be dated and signed by the Owner’s Representative; and

(c) state the specific details of the assignment.

1.8 Contract Records, Accounting and Auditing

1.8.1 Contract Records

(1) Except as provided in GC Section 6.1,all data, information, documentation, account, plans, programs, reports, surveys and guidelines of any kind whatsoever (the “Contract Records”) prepared by the Operator in performing the Services shall become and remain the property of theOwner and the Operator shall deliver all Contract Records and a detailed inventory of those Contract Records to theOwner no later than the date of termination or expiration of the Contract, except in respect of such Contract Records that are required to be delivered at an earlier date.

(2) The Contract Records shall include,

(a) information of any kind whatsoever related to the finances, revenues or expenditures of theOwner’s operations;

(b) all files, documents, plans, drawings, specifications, notes, minutes of meetings and minutes of conversations;

(c) all the plans, programs, reports, surveys and guidelines prepared by the Operator in carrying out the Operations Services;

(d) the accounts of theSewerage Treatment operations at the New Facility;

(e) all manuals, reports, condition surveys, safety records, audit records, inventories, laboratory test results, procurement records, customer information, financial information, financial statements, invoices, accounting records, subcontracts and personnel records; and

(f) the Design-Build Documents, whether stored in hard copy or electronically.

Page 107: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 16 of 56

(3) The Operator shall provide theOwner with unrestricted access to the Contract Records during the term of the Contract, including the right to make and retain copies.

(4) The Operator may retain a copy of the Contract Records but shall not use them for purposes unrelated to this Contract without the prior approval of theOwner. This GC Section 1.8.1(4) does not in any way relieve the Operator of its obligation of confidentiality pursuant to GC Section 6.2.

(5) Except as provided in GC Section 6.1, the Operator acknowledges that theOwner, as owner of the Contract Records, may deal with the Contract Records in any way it determines, including making the Contract Records publicly available and making them available to prospective bidders who may be involved in the process to select a Subsequent Operator.

1.8.2 Accounting

The Operator shall keep accurate and systematic accounts in respect of the Services and the Contract in accordance with internationally accepted accounting principles.

1.8.3 Auditing the Operator’s Own Accounts and the Contract Records

(1) TheOwner may, in its sole discretion, audit,

(a) the Operator’s own accounts, financial information, financial statements and technical information at any reasonable time and with 24 hours’ notice to the Operator; and

(b) the Contract Records and Design-Build Documents at any reasonable time and without notice to the Operator,

in respect of any matters related to the Contract.

(2) TheOwner may complete the audit or audits itself or may retain an independent auditor, at theOwner’s expense, to complete the audit or audits.

1.8.4 Operator’s Audited Accounts

The Operator shall submit to theOwner, no later than 90 days after the end of the Operator’s fiscal year, the annual audited accounts of its own finances for each of the Operator’s fiscal years that occur during the Contract Term.

1.8.5 Inspections and Audit by the Bank

The Operator shall permit the Bank and/or persons appointed by the Bank to inspect the Site and/or the Owner’s accounts and records relating to the performance of the Contract and to have such accounts and records audited by auditors appointed by the Bank if required by the Bank.

1.9 Operator’s Claims During the Design-Build Period

(1) If the Operator considers itself to be entitled to any extension of the Time for Completion or any additional payment, under any section related to the Design-Build Services of these General Conditions, the Operator shall give notice to the Design-Build Engineer, describing the event or circumstance giving rise to the claim. The notice shall be given as soon as practicable, and no later than 30 days, after the Operator became aware, or should have become aware, of the event or circumstance.

Page 108: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 17 of 56

(2) If the Operator fails to give notice of a claim within such period of 30 days, the Time for Completion shall not be extended, the Operator shall not be entitled to additional payment, and the Owner shall be discharged from all liability in connection with the claim. Otherwise, the following provisions of this GC Section 1.9 shall apply.

(3) The Operator shall also submit any other notices related to the Design-Build Services which are required by the Contract, and supporting particulars for the claim, that are relevant to such event or circumstance.

(4) The Operator shall keep such contemporary records as may be necessary to substantiate any claim related to the Design-Build Services, either on the Site or at another location acceptable to the Design-Build Engineer. Without admitting the Owner’s liability, the Design-Build Engineer may, after receiving any notice under this GC Section 1.9, monitor the record-keeping or instruct the Operator to keep further contemporary records. The Operator shall permit the Design-Build Engineer to inspect all these records, and shall, if instructed, submit copies to the Design-Build Engineer.

(5) No later than 42 days after the Operator became aware, or should have become aware, of the event or circumstance giving rise to the claim, or within such other period as may be proposed by the Operator and approved by the Design-Build Engineer, the Operator shall send to the Design-Build Engineer a fully detailed claim which includes full supporting particulars of the basis of the claim and of the extension of time or additional payment claimed. If the event or circumstance giving rise to the claim has a continuing effect,

(a) this fully detailed claim shall be considered as interim;

(b) the Operator shall send further interim claims at monthly intervals, giving the accumulated delay or amount claimed, and such further particulars as the Design-Build Engineer may reasonable require; and

(c) the Operator shall send a final claim no later than 30 days after the end of the effects resulting from the event or circumstance, or within such other period as may be proposed by the Operator and approved by the Design-Build Engineer.

(6) No later than 42 days after receiving a claim or any further particulars supporting a previous claim, or within such other period as may be proposed by the Design-Build Engineer and approved by the Operator, the Design-Build Engineer shall respond with approval, or with disapproval and detailed comments. The Design-Build Engineer may also request any necessary further particulars, but shall nevertheless give his response on the principles of the claim within such time.

(7) Each invoice sent by the Operator shall include such amounts for any claim as have been reasonably substantiated as due under the relevant provision of the Contract. Unless and until the particulars supplied are sufficient to substantiate the whole of the claim, the Operator shall only be entitled to payment for such part of the claim as it has been able to substantiate.

(8) The Operator shall proceed in accordance with GC Section 7.2.6 to request,

(a) an extension, if any, of the Time for Completion before or after its expiry in accordance with GC Section 2.3.4; or

(b) an additional payment, if any, to which the Operator believes it is entitled under the Contract.

Page 109: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 18 of 56

(9) The requirements of this GC Section 1.9 are in addition to those of any other provision which may apply to a claim. If the Operator fails to comply with this or another provision in relation to any claim, any extension of or additional payment shall take account of the extent, if any, to which the failure has prevented or prejudiced proper investigation of the claim, unless the claim is excluded under GC Section 1.9(2).

(10) This GC Section 1.9 shall apply only in respect of the Design-Build Services excluding the Existing Operations Services.

Page 110: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 19 of 56

B . SUB J E C T M AT T E R OF T H E C ONT R AC T

AR T I C L E 2 - CONTRACT TERM, TIMING AND COMPLETION

2.1 General

2.1.1 Effectiveness of Contract

The Form of Contract shall be signed by the Operator, the Parent and the Shareholders, if the Operator is a joint venture company, prior to its signing by theOwner. The Contract shall come into force and effect on the date the Form of Contract is signed by theOwner (the “Effective Date”), contingent on final approval by the Bank.

2.1.2 Expiration of Contract

This Contract shall terminate on either,

(a) the specified number of months after the New Operations Starting Date named in the SCC;

(b) the Extension Date pursuant to GC Section 2.4.3; or

(c) the date of Contract termination pursuant to GC Section 11.2,

(the “End Date”), whichever is applicable.

2.1.3 Commencement of Services

(1) Unless otherwise stated in the SCC, the Design-Build Starting Date shall be no later than 30 days after the Effective Date and the Owner shall give the Operator at least seven days prior notice of the Design-Build Starting Date.

(2) The “New Operations Starting Date” shall be the date of the Operational Acceptance Certificate.

2.2 Design-Build Period and New Operations Period

The Contract Term shall be divided into two periods as follows:

(a) the period commencing on the Effective Date and ending on the day immediately prior to the New Operations Starting Date (the “Design-Build Period”); and

(b) the period commencing on the New Operations Starting Date and ending on the End Date (the “New Operations Period”)namely the date of completion of the Operation and Maintenance period of 5 years, commencing from the date of Operational Acceptance of the STP, Pumping Stations and all appurtenant and allied works.

Page 111: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 20 of 56

2.3 Design-Build Period – Commencement, Delays and Suspension

2.3.1 Commencement of the Design-Build Services

The Operator shall commence the Design-Build Services no later than the Design-Build Starting Date, and shall then proceed with the Design-Build Services with due expedition and without delay.

2.3.2 Time for Completion

The Operator shall complete the whole of the Design-Build Services in accordance with the time for completion set out in the SCC (“Time for Completion”) for the Design-Build Services including,

(a) successfully completing the Tests on Commissioning; and

(b) completing all of the Design-Build Services such that the completed New Facility can be used as a fully operational New Facility in accordance with the Contract.

2.3.3 Design-Build Time Schedule

(1) The Operator shall submit a detailed time programme (the “Time Schedule”) to the Design-Build Engineer no later than 30 days after the Design-Build Starting Date. The Operator shall also submit a revised Time Schedule whenever the previous Time Schedule is inconsistent with actual progress or with the Operator’s obligations. Each Time Schedule shall include a description of,

(a) the order in which the Operator intends to carry out the Design-Build Services, including the anticipated timing of each stage of design, Design-Build Documents, procurement, manufacture, inspection, delivery to the Site, construction, erection, testing and commissioning;

(b) the periods for review and any other submissions, approvals and consents specified in the Contract;

(c) the sequence and timing of inspections and tests specified in the Contract;

(d) the scheduled Time for Completion, the planned Time for Completion and the planned New Operations Starting Date;

(e) all major events and activities in the production of Design-Build Documents; and

(f) all major phases and milestones of the Design-Build Services.

(2) The Design-Build Engineer shall review each Time Schedule and provide comments to the Operator as to whether the Time Schedule complies with the Contract. If the Design-Build Engineer fails to provide such comments prior to the expiration of 21 days after receiving a Time Schedule, the Operator shall proceed in accordance with the Time Schedule, subject to its other obligations under the Contract. The Operator shall be entitled to rely upon the Time Schedule when planning its activities.

(3) The Operator shall promptly give notice to the Design-Build Engineer of specific probable future events or circumstances which may adversely affect the Design-Build Services or delay the execution of the Design-Build Services. The Design-Build Engineer may require the Operator to submit an estimate of the anticipated effect of the future event or circumstances, or a proposal under GC Section 10.1.3.

(4) If, at any time, the Design-Build Engineer gives notice to the Operator that a Time Schedule fails, to the extent stated, to comply with the Contract or to be consistent with actual progress and the Operator’s stated intentions, the Operator shall submit a revised Time Schedule to the Design-Build Engineer in accordance with this GC Section 2.3.3.

Page 112: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 21 of 56

2.3.4 Extension of the Time for Completion

(1) The Time for Completion shall be extended if the Operator is delayed or impeded in the performance of the Design-Build Services by reason of any of the following:

(a) a Change, unless the Parties have already agreed to an adjustment to the Time for Completion as part of the applicable Change;

(b) an occurrence of Force Majeure as provided in GC Section 9.8, Unforeseeable physical conditions as provided for in GC Section 9.7, or loss or damage as a result of the occurrences set out in GC Section9.4(2);

(c) any suspension order given by the Owner pursuant to GC Section11.1.1;

(d) any change in the Applicable Law in accordance with GC Section9.10;

(e) any default or breach of the Contract by the Owner or any activity, act or omission of any other contractors employed by the Owner; or

(f) any other matter specifically mentioned in the Contract,

by such period as shall be fair and reasonable in all the circumstances and as shall fairly reflect the actual delay or impediment sustained by the Operator.

(2) The Operator shall submit, to the Design-Build Engineer, any notice of a claim for an extension of the Time for Completion in accordance with GC Section10.1.3.

(3) The Operator shall, at all times, use reasonable efforts to minimize any delay in the performance of its obligations under the Contract.

2.3.5 Rate of Progress

(1) If, at any time, the Operator’s progress in respect of the Design-Build Services,

(a) is too slow to complete the Design-Build Services in accordance with the Time for Completion; or

(b) has fallen, or will fall, behind the current Time Schedule

other than as a result of a cause listed in GC Section 2.3.4, then the Design-Build Engineer may instruct the Operator to submit a revised Time Schedule and supporting report describing the revised methods which the Operator proposes to adopt in order to expedite progress and complete the Design-Build Services.

(2) Unless the Design-Build Engineer notifies otherwise, the Operator shall adopt the revised methods referred to in GC Section 2.3.5(2), which may require increases in,

(a) the working hours or in the numbers of Operator’s Personnel, or both; or

(b) Plant and Equipment,

at the risk and cost of the Operator. If these revised methods cause the Owner to incur additional costs, the Operator shall, subject to GC Section 1.9, pay these costs to the Owner, in addition to delay damages, if any, under GC Section 2.3.6.

2.3.6 Delay of Completion – Liquidated Damages - Delay

(1) The Operator guarantees that it shall attain Completion of the New Facility in accordance with the Time for Completion specified in the SCC and GC Section2.3.2 or in accordance with an extension of the Time for Completion granted to the Operator in accordance with GC Section2.3.4.

Page 113: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 22 of 56

(2) If the Operator fails to attain Completion of the New Facility within the Time for Completion, or any extension thereof in accordance with GC Section 2.3.4, the Operator shall pay to the Owner liquidated damages in the amount specified in the SCC (“Liquidated Damages - Delay”). The aggregate amount of Liquidated Damages - Delay shall in no event exceed the amount specified as “Maximum” in the SCC. The Owner may terminate the Contract pursuant to GC Section11.2.3 if the Operator reaches the “Maximum” level for Liquidated Damages – Delay.

(3) The payment or payments by the Operator of Liquidated Damages – Delay shall completely satisfy the Operator’s obligation to attain Completion of the New Facility within the Time for Completion or any extension thereof pursuant to GC Section 2.3.4.

(4) The payment or payments by the Operator of Liquidated Damages – Delay shall not in any way relieve the Operator of its obligations to complete the New Facility or any other obligations and liabilities of the Operator under the Contract.

(5) If the Operator attains Completion of the New Facility before the Time for Completion or any extension thereof pursuant to GC Section 2.3.4, and if the Owner intends to pay a bonus to the Operator for early completion, the amount of the bonus is as set out in the SCC. The aggregate amount of such bonus shall in no event succeed the amount specified as “Maximum” in the SCC.

2.3.7 Design-Build Period – Special Operations Requirements Comment: Not applicable?

Unless otherwise stated in the SCC, the Operator shall carry out the Existing Operations Services for the Existing Facility as set out in Section 4.1 of the Design-Build Services Appendix during the Design-Build Period commencing on the Design-Build Starting Date. GC Sections 2.3.1 to 2.3.6 do not apply to the Existing Operations Services.

2.4 New Operations Period

2.4.1 Commencement of the Operations - Services

The Operator shall commence the Operations Services no later than the New Operations Starting Date and shall then proceed with the Operations Services with due exception and without delay.

2.4.2 Services After the End Date

The Operator, upon written request by theOwner no later than 60 days prior to the End Date, shall provide assistance to theOwner, at no cost to theOwner, during a transitional period of up to 60 days after the End Date (the “Transition Assistance”). The purpose of the Transition Assistance is to ensure a smooth transition between the Operator and a Subsequent Operator of the New Facility. The Transition Assistance shall be related to only transition services and shall not be the full range of Services as set out in the Operations Services Appendix.

2.4.3 Extension of the Contract

If both Parties agree, this Contract may be extended for a period of up to 5 yearsafter the End Date. TheOwner shall notify the Operator no later than 6 months prior to the End Date if it wishes to enter into negotiations in order to extend the duration of the Contract. The date on which the Contract is to expire as a result of an extension shall be the Extension Date.

Page 114: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 23 of 56

AR T I C L E 3 - OBLIGATIONS OF THE OPERATOR

3.1 General – Services and Standards of Performance

The Operator shall,

(a) perform the Design-Build Services set out in the Design-Build Services Appendix;

(b) perform the Operations Services set out in the Operations Services Appendix; and

(c) perform the Services in accordance with the Technical Standards set out in the Technical Standards Appendix,

all with due care and diligence in accordance with the Contract.

3.2 Law Governing Services

The Operator shall comply with the Applicable Law and shall ensure that the Operator’s Personnel and Subcontractors comply with the Applicable Law. The Operator shall indemnify and hold harmless the Owner from and against any and all liabilities, damages, claims, fines, penalties and expenses of whatever nature arising or resulting from violation of the Applicable Law by the Operator, the Operator’s Personnel the Subcontractors and the Subcontractors’ personnel.

3.3 Conflict of Interest

(1) The compensation of the Operator pursuant to GC Article 5 shall constitute the Operator’s sole compensation in connection with this Contract and, except as provided in GC Article 5, the Operator shall not accept for its own benefit any trade commission, discount or similar payment in connection with activities pursuant to this Contract or in the discharge of its obligations hereunder, and the Operator shall use its best efforts to ensure that the Operator’s Personnel, Subcontractors, and the Subcontractors’ employees and agents, similarly shall not receive any such additional remuneration.

(2) The Operator, Subcontractors and any entity affiliated with the Operator or the Subcontractors, shall be disqualified, during the Contract Term from providing goods, works or services, other than the Services, with respect to,

(a) the goods, works and services purchased from the Contingency Fund; and

(b) the Capital Investment Program.

(3) The Operator, Operator’s Personnel, Subcontractors and the employees and affiliates of the Subcontractors shall not engage, either directly or indirectly, in any business or professional activities which would conflict with the activities assigned to them under this Contract.

(4) The Operator and its Shareholders shall not participate in any discussions or work and shall not provide any services or advice to the Owner related to,

(a) except with respect to their responsibilities as set out in the Operations Services Appendix, institutional restructuring or reorganisation of the Owner or a utility or department of the Owner;

Page 115: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 24 of 56

(b) the development or review of bidding documents to retain any Subsequent Operator; or

(c) the preparations for the procurement process to retain any Subsequent Operator.

(5) Failure of the Operator or the Shareholders to comply with this GC Section 3.3, in addition to constituting a breach of this Contract, may result in the disqualification of the Operator and the Shareholders from bidding in the procurement process to retain any Subsequent Operator.

3.4 Plant and Equipment, Operator’s Equipment (Design-Build) and Operations Equipment (Operations)

(1) Any Plant and Equipment, Operator's Equipment (Design-Build) and Operator's Equipment (Operations) that will be incorporated in or be required for the Site and New Facility or the Operation Services shall have their origin as specified under GC Section 1.1 (“Country of Origin”).

(2) The Operator shall prepare a list of all Operator's Equipment (Design-Build) and Operator's Equipment (Operations) (the “Operator’s Equipment Lists”). The Operator shall update the Operator’s Equipment Lists on an annual basis and shall provide the updated Operator’s Equipment Lists to the Owner no later than 30 days after the end of each of the Operator’s fiscal years during the Contract Term.

3.5 Site Information and Investigation

(1) The Operator acknowledges that theOwner made available to the Operator, during the bidding process, either directly or by placing the data in the Data Room and Background Information Document, all available data on hydrological and sub-surface conditions of the Site, and studies on environmental impact that had been obtained by or on behalf of theOwner from investigations in anticipation of the Design-Build and Operations Services (the “Site Information”). The Operator shall be responsible for interpreting all data about the Site that is provided to it by theOwner.

(2) The Operator shall be deemed to have inspected and examined the Site, its surroundings, the Site Information and other available information, and to have satisfied itself before entering into the Contract, as to,

(a) the form and nature of the Site, including the sub-surface conditions;

(b) the applicable hydrological, hydrogeological and climatic conditions;

(c) the extent and nature of the work, Plant and Equipment, Operator's Equipment (Design-Build) and Operator's Equipment (Operations) necessary for the execution and completion of the Services, and the remedying of any defects; and

(d) the Operator’s requirements for access to the Site, accommodation, personnel, power, transport, water and other services.

(3) The Operator shall be deemed to have obtained all necessary information as to risks, contingencies and all other circumstances that may influence or affect the performance of its obligations under the Contract.

Page 116: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 25 of 56

(4) To the extent the Operator did not make any of the interpretations, investigations or examinations, or did not satisfy itself, or did not obtain such information as called for in this GC Section 3.5, the Operator represents and warrants that it is willing to assume and does hereby assume responsibility for any and all loss and damage from any cause whatsoever which the Operator’s interpretations, investigations, examinations and obtaining of information may have avoided and agrees to indemnify theOwner from all risk thereof and from conditions arising or developing in the course of performing the Services which may make the performance of the Services more onerous and more expensive to fulfil or perform than was contemplated on the Effective Date. Notwithstanding anything in the Contract to the contrary, the Operator acknowledges and declares that in entering into the Contract it did not and does not rely upon any information or report provided by or on behalf of theOwner or its agents, representatives or employees.

3.6 Access to the Site and New Facility

(1) The Operator shall, during both the Design-Build Period and the New Operations Period, provide free and open access to the Site and the New Facility at the Owner’s request. The Owner shall make reasonable efforts to provide reasonable notice to the Operator prior to the Owner’s access but such notice is not mandatory. The Owner’s representative on the Site, or at the New Facility shall observe all safety and health regulations and reasonable instructions of the Operator.

(2) The Operator shall give all reasonable access to any other contractors employed by the Owner on or near the Site to carry out their work.

(3) If the Operator makes available to other contractors any roads or ways the maintenance for which the Operator is responsible, permits the use by such other contractors of the Operator's Equipment (Design-Build) and Operator's Equipment (Operations), or provides any other service of whatsoever nature for such other contractors, the Owner shall fully compensate the Operator for any loss or damage caused or occasioned by such other contractors in respect of any such use or service, and shall pay to the Operator reasonable remuneration for the use of such equipment or the provision of such services.

(4) The Operator shall also arrange to perform its work so as to minimize, to the extent possible, interference with the work of other contractors. The Design-Build Engineer shall determine the resolution of any difference or conflict that may arise between the Operator and other contractors and the workers of the Owner in regard to their work.

(5) The Operator shall notify the Design-Build Engineer, promptly of any defects in the other contractors’ work that come to its notice, and that could affect the performance of the Services by the Operator. The Design-Build Engineer, shall determine the corrective measures, if any, required to rectify the situation after inspection of the Site and the New Facility. Decisions made by the Design-Build Engineer shall be binding on the Operator.

Page 117: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 26 of 56

AR T I C L E 4 - OBLIGATIONS OF THE OWNER

4.1 Owner’s Assistance to the Operator

Owner shall obtain consent from the respective pollution control board/authority and all other requisite clearances to establish and operate the STP unless the same have been obtained already.

TheOwnershall use reasonable efforts to,

(a) provide the Operator, Subcontractors and Operator’s Personnel with work permits and such other documents as shall be necessary to enable the Operator, Subcontractors or Operator’s Personnel to perform the Services;

(b) arrange for Operator’s Personnel and, if appropriate, their eligible dependants to obtain promptly all necessary entry and exit visas, residence permits, exchange permits and any other documents required for their stay in the Country;

(c) facilitate the prompt clearance through customs of any property required for the Services and of the personal effects of the Operator’s Personnel and their eligible dependants; and

(d) issue to officials, agents and representatives of theOwner all such instructions as may be necessary or appropriate for the prompt and effective implementation of the Services.

4.2 Access to the Site and New Facility

The Owner shall be responsible for acquiring and providing legal and physical possession of the Site and access thereto and for providing possession and access to all other areas reasonablyrequired for the proper execution of the Contract including all requisite rights of way. The Owner shall provide the Operator, free of charge, full possession of the Site and the New Facility during the term of the Contract.

4.3 Reviews and Approvals of Submissions

(1) Except as otherwise provided in the Contract, if the Operator submits a plan, report or other documentation to theOwner in writing, and theOwner, or the Design-Build Engineer is required to approve that submission, theDesign-Build Engineer, shall review and either approve or provide written comment on the Operator’s submission no later than 14 days after the day of submission by the Operator to theDesign-Build Engineer.

(2) If theDesign-Build Engineer, fails to approve or refuses to approve the Operator’s submission in accordance with GC Section 4.3(1), the Operator shall notify theOwner in writing that it has not received a response to its submission.

(3) If theDesign-Build Engineer fails to respond to the Operator’s written notification pursuant to GC Section 4.3(2) within 14 days after the receipt by theDesign-Build Engineer, of the Operator’s written notification, the Operator’s submission shall be deemed to be approved.

Page 118: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 27 of 56

C . PAY M E NT

AR T I C L E 5 - CONTRACT PRICE AND PAYMENT

5.1 Contract Price

(1) The Contract Price shall be as specified in the Price Schedules offered by the Operator and accepted by the Owner while awarding the Contract. These prices have been incorporated in Schedule 5 of the Contract.

(2) Subject to GC Section 9.7, the Operator shall be deemed to have satisfied itself as to the correctness and sufficiency of the Contract Price, which shall, except as otherwise provided for in the Contract, cover all its obligations under the Contract, including all costs and expenses for the Design, Building, Successful Commissioning, Operation & Maintenance of the Project Facility in accordance with the provisions of this Contract.

(3) Unless indicted in the SCC, the contract price shall not be subject to any alteration except in the event of a change to the design build services in accordance with GC section 10.1 or a change to the operations services in accordance with GC Section 10.2 and 10.3.

5.2 Terms of Payment

(1) The Contract Price shall be paid as specified in the SCC.

(2) No payment made by the Owner herein shall be deemed to constitute acceptance by the Owner of the Project Facility or any part thereof.

(3) In the event that the Owner fails to make any payment by its respective due date or within the period of 60 days, the Owner shall pay to the Operator interest on the amount of such delayed payment at the rate shown in the SCC and as specified in the SCC for the period of delay until payment has been made in full.

(4) The currency or currencies in which payments are made to the Operator under this Contract shall be specified in the SCC, subject to the general principle that payments will be made in the currency or currencies in which the Contract Price has been stated in the Operator’s Bid.

(5) All payments shall be made in the currency or currencies specified in the Article 2 of the Contract. .

5.3 Performance Incentive Compensation

If the Owner intends to pay the Operator performance incentive compensation, the Owner will pay such compensation at the end of the New Operations Period and in accordance with the Performance Incentive Compensation Appendix.

5.4 Liquidated Damages - Operations

The Operator shall pay theOwner liquidated damages for failure to meet Technical Standards as set out in the Liquidated Damages – Operations Appendix.

Page 119: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 28 of 56

5.5 Securities

5.5.1 Performance Security

(1) The Operator and, if applicable, its Parent and Shareholders shall each provide a security for the Operator’s proper performance of the Contract to the Owner no later than the date specified in the Bidding Documents (the “Performance Security”).

(2) The Performance Security shall be,

(a) in the amount specified in the SCC;

(b) denominated in the currency or currencies of the Contract, or in a freely convertible currency acceptable to the Owner; and

(c) shall be in the form specified in the Bidding Documents or in another form approved by the Owner.

(3) The Performance Security is a bank guarantee and shall be issued by either,

(a) a bank or insurance company located in the Country; or

(b) a foreign bank or insurance company through a correspondent bank or insurance company located in the Country.

(4) The Performance Security shall be valid until 180 days after the End Date, or any extension to the End Date.

(5) The Owner shall return the Performance Security no later than 14 days after its expiration.

(6) The cost of complying with this GC Section 5.5.1 shall be borne by the Operator.

5.5.2 Advance Payment Security

(1) The Operator shall provide a security in an amount equal to the advance payment calculated in accordance withthe Terms and Procedures of Payment Appendix and in the same currency or currencies.

(2) The advance payment security shall be in the form provided in the Bidding Documents or in another form approved by the Owner. The amount of the advance payment security may be progressively reduced as provided for in the Terms and Procedures of Payment Appendix. The advance payment security shall returned to the Operator immediately after its expiration.

5.6 Taxes and Duties

(1) Except as otherwise specifically provided in the Contract, the Operator shall bear and pay all taxes, duties, levies and charges (the “Taxes”) assessed on the Operator, its Subcontractors or their employees by all municipal, state or national government authorities in connection with the Services in and outside of the Country.

Page 120: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 29 of 56

(2) If any tax exemptions, reductions, allowances or privileges may be available to the Operator in the Country, the Owner shall use reasonable efforts to enable the Operator to benefit from any such tax savings to the maximum allowable extent.

(3) For the purpose of the Contract, it is agreed that the Contract Price specified in the Form of Contract is based on the Taxes prevailing 30 days prior to the Submission Deadline in the Country. It is also agreed that the Contract Price does not take into account any tax exemptions, reductions, allowances or privileges that may be available to the Operator in the Country. If any rates of Tax are increased or decreased, a new Tax is introduced, an existing Tax is abolished, a tax exemption, reduction, allowance of privilege applies or is granted or any change in interpretation or application of any Tax occurs in the course of the performance of Contract, which was or will be assessed on the Operator, Subcontractors or their employees in connection with performance of the Contract, an equitable adjustment of the Contract Price shall be made to fully take into account any such change by addition to the Contract Price or deduction therefrom, as the case may be, in accordance with GC Section 9.10.

(4) Service Tax if applicable shall be reimbursed by the Owner against evidence of applicability and payment.

Page 121: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 30 of 56

D. I NT E L L E C T UAL PR OPE R T Y

AR T I C L E 6 - COPYRIGHT – DESIGN-BUILD DOCUMENTS

6.1 Copyright – Design-Build Documents

(1) As between the Parties, the Operator shall retain the copyright and other intellectual property rights in the Design-Build Documents made by or on behalf of the Operator.

(2) The Operator shall be deemed, by signing the Contract, to give the Owner a non-terminable, transferable, non-exclusive, royalty-free licence to copy, use and communicate the Design-Build Documents, including making and using modifications of them. This licence shall,

(a) apply throughout the actual or intended working life, whichever is longer, of the relevant parts of the Site or New Facility;

(b) entitle any person in proper possession of the relevant part of the Site or New Facility to copy, use and communicate the Design-Build Documents for the purposes of completing, managing, operating, maintaining, altering, adjusting, and repairing the New Facility;

(c) in the case of Design-Build Documents which are in the form of computer programs and other software, permit their use on any computer on the Site or at the New Facility and other places as envisaged by the Contract, including replacements of any computers supplied by the Operator; and

(d) entitle the Owner to make the Design-Build Documents available for inspection by a prospective bidder who may be involved in the process to select a Subsequent Operator.

(3) The Owner shall not, without the Operator’s consent, use, copy or communicate the Design-Build Documents to a Third Party by, or on behalf of, the Owner for purposes other than those permitted under GC Section 6.1(2).

6.2 Confidentiality

(1) The Operator shall keep confidential and shall not, without the written consent of the Owner, divulge to any Third Party any documents, data or other information arising directly or indirectly from the performance of Services under the Contract, whether such information has been furnished prior to, during or following termination of the Contract. Notwithstanding this GC Section 6.2(1), the Operator may furnish to its Subcontractors such documents, data and other information to the extent required for the Subcontractors to perform their work under the Contract, in which event the Operator shall obtain from such Subcontractors an undertaking of confidentiality similar to that imposed on the Operator under this GC Section 6.2(1).

(2) The Operator shall not use such documents, data and other information received from the Owner for any purpose other than the Services as are required for the performance of the Contract. The Operator shall not publish, permit to be published, or disclose any particulars of the Services, Site or New Facility in any trade or technical paper or advertising materials without the prior written consent of the Owner.

Page 122: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 31 of 56

(3) The obligations of the Operator under GC Sections 6.2(1) and 6.2(2), shall not apply to that information which,

(a) now or hereafter enters the public domain through no fault of the Operator;

(b) can be proven to have been possessed by the Operator at the time of disclosure and which was not previously obtained, directly or indirectly, from the Owner; or

(c) otherwise lawfully becomes available to the Operator from a Third Party that has no obligation of confidentiality.

Page 123: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 32 of 56

E . E X E C UT I ON OF T H E SE R V I C E S

AR T I C L E 7 - CONTRACT ADMINISTRATION AND SUPERVISION DURING THE DESIGN-BUILD AND NEW OPERATIONS PERIODS

7.1 General

The Parties acknowledge that two separate approaches to contract administration and supervision will be in place during the Contract Term as follows:

(a) from the Effective Date until the New Operations Starting Date, the Design-Build Supervision approach will be put in place by the Owner; and

(b) from the New Operations Starting Date until the End Date, the Operations Supervision approach will be put in place by the Owner.

7.2 Design-Build Supervision

7.2.1 Supervision During the Design-Build Period

GC Section 7.2 shall apply only during the Design-Build Period.

7.2.2 Design-Build Engineer’s Duties and Authority (Design-Build Period)

(1) The Owner shall appoint the Design-Build Engineer who shall be responsible for day to day contract management and supervision during the Design-Build Period. The Design-Build Engineer’s staff shall include suitably qualified engineers and other professionals who are competent to carry out these duties.

(2) The Design-Build Engineer shall have no authority to amend the Contract.

(3) Except, as specifically provided otherwise in the Contract, the Design-Build Engineer may exercise the authority attributable to the Design-Build Engineer as specified in or necessarily to be implied from the Contract. The Owner undertakes not to impose further constraints on the Design-Build Engineer’s authority, except as agreed with the Operator.

(4) If the Design-Build Engineer is obligated to obtain the approval of the Owner before exercising a specific authority, these restrictions shall be shall be set out in the SCC. If the Design-Build Engineer exercises a specified authority for which the Owner’s approval is required then, for the purposes of the Contract, the Owner shall be deemed to have given approval.

(5) Except as otherwise stated in the Contract,

(a) if the Design-Build Engineer carries out duties or exercises authority, specified in or implied by the Contract, the Design-Build Engineer shall be deemed to act for the Owner;

(b) the Design-Build Engineer has no authority to relieve any Party of any duties, obligations or responsibilities under the Contract; and

(c) any approval, check, certificate, consent, examination, inspection, instruction, notice, proposal, request, test or similar act by the Design-Build Engineer,

Page 124: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 33 of 56

including absence of disapproval, shall not relieve the Operator from any responsibility it has under the Contract, including responsibility for errors, omissions, discrepancies and non-compliances.

7.2.3 Delegation by the Design-Build Engineer

(1) The Design-Build Engineer may from time to time assign duties and delegate authority to assistants, and may also revoke such assignment or delegation. These assistants may include a resident engineer, or independent inspectors appointed to inspect or test items of Plant or Equipment. The assignment, delegation or revocation shall be in writing and shall not take effect until copies have been received by both Parties. Unless otherwise agreed by both Parties, the Design-Build Engineer shall not delegate the authority to determine any matter in accordance with GC Section 7.2.6.

(2) Assistants shall be suitably qualified persons, who are competent to carry out these duties and exercise this authority, and who are fluent in the language for communications defined in GC Section 1.3.1.

(3) Each assistant, to whom duties have been assigned or authority has been delegated, shall only be authorized to issue instructions to the Operator to the extent defined by the delegation. Any approval, check, certificate, consent, examination, inspection, instruction, notice, proposal, request, test, or similar act by an assistant, in accordance with the delegation, shall have the same effect as though the act had been an act of the Design-Build Engineer. However,

(a) any failure to disapprove any work or Plant and Equipment shall not constitute approval, and shall therefore not prejudice the right of the Design-Build Engineer to reject the work or the Plant and Equipment; and

(b) if the Operator questions any determination or instruction of an assistant, the Operator may refer the matter to the Design-Build Engineer, who shall promptly confirm, reverse or vary the determination or instruction.

7.2.4 Instructions of the Design-Build Engineer

(1) The Design-Build Engineer may issue to the Operator, at any time during the Design-Build Period, instructions which may be necessary for the execution of the Design-Build Services and the remedying of any defects, all in accordance with the Contract. The Operator shall only take instructions from the Design-Build Engineer, or from an assistant to whom the appropriate authority has been delegated under GC Section 7.2.3. If an instruction constitutes a Change, GC Section 10.1 shall apply.

(2) The Operator shall comply with the instructions given by the Design-Build Engineer or delegated assistant, on any matter related to the Contract. These instructions shall be given in writing.

7.2.5 Replacement of the Design-Build Engineer

If the Owner intends to replace the Design-Build Engineer, the Owner shall, not less than 42 days before the intended date of replacement, give notice to the Operator of the name, address and relevant experience of the intended replacement Design-Build Engineer. The Owner shall not replace the Design-Build Engineer with a person against whom the Operator raises reasonable objection by notice to the Owner, with supporting particulars.

Page 125: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 34 of 56

7.2.6 Determinations by the Design-Build Engineer

(1) Whenever the Contract provides that the Design-Build Engineer shall proceed in accordance with this GC Section 7.2.6 to agree or determine any matter, the Design-Build Engineer shall consult with each Party in an endeavour to reach agreement. If agreement is not achieved, the Design-Build Engineer shall make a fair determination in accordance with the Contract, taking due regard of all relevant circumstances.

(2) The Design-Build Engineer shall give notice to the Parties of each agreement or determination, with supporting particulars. Each Party shall give effect to each agreement or determination unless and until revised under GC Section 1.9.

7.3 Operations Supervision

7.3.1 Supervision During the New Operations Period

This GC Section 7.3 shall apply only during the New Operations Period and the period of time immediately after the End Date solely for the purpose of resolving transition issues and any outstanding issues arising during the New Operations Period.

7.3.2 The Owner shall appoint its Representative for supervision of the “Operations’ during the O & M period of 5 years in accordance with SCC clause 8.1.1 (1) (b).

Page 126: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 35 of 56

AR T I C L E 8 - REPRESENTATIVES, STAFF AND SUBCONTRACTING

8.1 Representatives

8.1.1 Owner’s Representative

(1) The Owner’s representative (the “Owner’s Representative”) shall be as follows:

(a) during the Design-Build Period, the Owner’s Representative shall be the Design-Build Engineer; and

(b) during the New Operations Period, the Owner’s Representative shall be the as mentioned in SCC.

(2) The Owner shall name its representative,

(a) no later than 14 days after the Effective Date for the Design-Build Engineer; and

(3) The Owner may change its representative from time to time and shall give notice of the change without delay. The Owner shall not change its representative at a time and in such a manner as to impede the progress of either the Design-Build Services or the Operations Services.

(4) The Owner’s Representative shall represent and act for the Owner at all times during the performance of the Contract. All notices, instructions, orders, certificates, approvals and all other communications under the Contract by the Owner shall be given by the Design-Build Engineer or the as applicable, except as herein otherwise provided.

(5) All notices, instructions, information and other communications given by the Operator to the Owner under the Contract shall be given to the Design-Build Engineer, as applicable, except as herein otherwise provided.

8.1.2 Operator’s Representative

(1) If the Operator’s representative is not named in the SCC, the Operator shall name its representative (the “Operator’s Representative”) no later than 14 days after the Effective Date and shall request the Owner to approve the proposed Operator’s Representative. If the Owner makes no objection to the proposed Operator’s Representative, the Operator’s Representative shall be deemed to have been approved.

(2) If the Owner objects to the proposed Operator’s Representative before the expiration of 14days after the proposal, the Operator shall propose a replacement no later than 14 days after receiving the Owner’s objection and reasons for the objection and GC Section8.1.2(1) shall apply to the proposed replacement.

(3) The Operator’s Representative shall represent and act for the Operator at all times during the performance of the Contract. All notices, instructions, orders, certificates, approvals and all other communications under the Contract by the Operator shall be given by the Operator’s Representative, except as herein otherwise provided.

(4) All notices, instructions, information, and other communications given by the Owner to the Operator under the Contract shall be given to the Operator’s Representative as established pursuant to this GC Section 8.1.2.

Page 127: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 36 of 56

(5) The Operator shall not revoke the appointment of the Operator’s Representative without the Owner’s prior written consent, which shall not be unreasonably withheld. If the Owner consents thereto, the Operator shall appoint some other person as the Operator’s Representative, pursuant to the procedure set out in this GC Section 8.1.2.

(6) The Operator’s Representative may, subject to the approval of the Owner, which shall not be unreasonably withheld, at any time delegate to any person any of the powers, functions and authorities vested in him or her. Any such delegation may be revoked at any time. Any such delegation or revocation shall be subject to a prior notice signed by the Operator’s Representative, and shall specify the powers, functions and authorities thereby delegated or revoked. No such delegation or revocation shall take effect unless and until a copy thereof has been delivered to the Owner and the Design-Build Engineer or as applicable.

(7) Any act or exercise by any person of powers, functions and authorities so delegated to him or her in accordance with GC Section 8.1.2(6) shall be deemed to be an act or exercise by the Operator’s Representative.

8.2 Operator’s Superintendence

(1) Throughout the term of the Contract, the Operator shall provide all necessary superintendence to plan, arrange, direct, manage, inspect and test the Services.

(2) Superintendence shall be given by a sufficient number of persons having adequate knowledge of the language for communications as set out in the SCC and of the operations to be carried out, including the methods and techniques required, the hazards likely to be encountered and methods of preventing accidents, for the satisfactory and safe execution of the Services.

(3) The Operator’s Representative shall appoint a suitable person as construction or operations manager as applicable (the “Manager”). The Manager shall supervise all work done at the Site and New Facility by the Operator and shall be present at the Site or New Facility through normal working hours except when on leave, sick or absence connected with the proper performance of the Contract. Whenever the Manager is absent from the Site New Facility, a suitable person shall be appointed to act as his or her deputy.

8.3 Operator’s Personnel

(1) The Operator shall provide and employ on the Site for the performance of the Services such skilled, semi-skilled and unskilled labour as is necessary for the proper and timely execution of the Contract (the “Operator’s Personnel”). The Operator is encouraged to use local labour that has the necessary skills. The Operator shall provide all expertise needed to carry out the Services including the expertise listed in the Operator’s Expertise Appendix.

(2) Unless otherwise provided in the Contract, the Operator shall be responsible for the recruitment, employment, transportation, accommodation and catering of all labour, local or expatriate, required for the execution of the Contract and for all payments in connection therewith.

(3) The Operator shall be responsible for obtaining all necessary permits and visas from the appropriate authorities for the entry of all labour and personnel to be employed on the Site into the Country.

Page 128: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 37 of 56

(4) The Operator shall at its own expense provide the means of repatriation to all of its and its Subcontractor’s personnel employed on the Contract at the Site to their various home countries. It shall also provide suitable temporary maintenance of all such persons from the cessation of their employment on the Contract to the date programmed for their departure. In the event that the Operator defaults in providing such means of transportation and temporary maintenance, the Owner may provide the same to such personnel and recover the cost of doing so from the Operator.

(5) The Operator shall at all times during the progress of the Contract use its best endeavours to prevent any unlawful, riotous or disorderly conduct or behaviour by or amongst its employees and the labour of its Subcontractors.

(6) The Operator shall, in all dealings with its labour and the labour of its Subcontractors currently employed on or connected with the Contract, pay due regard to all recognized festivals, official holidays, religious or other customs and all local laws and regulations pertaining to the employment of labour.

8.4 Replacement of Operator’s Personnel

The Design-Build Engineer or as applicable, may require the Operator to remove and replace any member of the Operator’s Personnel who,

(a) persists in any misconduct or lack of care;

(b) carries out duties incompetently or negligently;

(c) fails to comply with any provision of the Contract; or

(d) persists in any conduct which gives the Owner reasonable cause to be dissatisfied with him or her.

8.5 Existing Staff - Not Applicable

If the Operator is obliged to retain staff employed by the Owner as stated in the SCC, it shall do so in accordance with the Existing Staff Appendix.

8.6 Subcontractors

(1) The Operator shall not enter into any contract or contracts that will result in the Operator exceeding the maximum percentage of subcontracting permitted by the Owner in respect of the Design-Build Services and the Operations Services, as set out in the Bidding Documents.

(2) Except with respect to the Subcontractors named in the Operator’s Bid, the Operator shall not enter into a contract with any Subcontractor without the prior consent of the Owner.

(3) The Operator shall be responsible for the observance by Subcontractors of the terms and conditions of the Contract and shall ensure that all relevant terms of the Contract are included in the Operator’s contracts with Subcontractors.

(4) Subcontracting by the Operator shall not relieve the Operator of any of its obligations under the Contract and the Operator shall be responsible for the acts, omissions and defaults of all Subcontractors, and the Subcontractors, employees, agents and sub-subcontractors, as fully as if they were acts, omissions or defaults of the Operator or the Operator’s Personnel.

Page 129: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 38 of 56

F . L I A B I L I T Y AND R I SK DI ST R I B UT I ON

AR T I C L E 9 - LIABILITY AND RISK DISTRIBUTION

9.1 Defect Liability - Comment: to discuss whether this clause can be deleted.

(1) The Operator warrants that the Site and New Facility or any part thereof shall be free from defects in the design, engineering, materials and workmanship of the Plant and Equipment supplied and of the work executed.

(2) The Defect Liability Period shall be 12 months after the date of Completion of the New Facility or 12 months from the date of Operational Acceptance of the New Facility, whichever first occurs, unless specified otherwise in the SCC.

(3) If during the Defect Liability Period any defect should be found in the design, engineering, materials and workmanship of the Site, New Facility or Plant and Equipment supplied or of the work executed by the Operator, the Operator shall promptly, in consultation and agreement with the Owner regarding appropriate remedying of the defects, and at its cost, repair, replace or otherwise make good, as the Operator shall, at its discretion, determine, such defect as well as any damage to the New Facility caused by such defect. The Operator shall not be responsible for the repair, replacement or making good of any defect or of any damage to the New Facility arising out of or resulting from normal wear and tear.

(4) The Operator’s obligations under this GC Section9.1shall not apply to,

(a) any designs, specifications or other data designed, supplied or specified by or on behalf of the Owner; and

(b) any other materials supplied or any other work executed by or on behalf of the Owner, except for the work executed by the Owner under GC Section9.1(10).

(5) The Owner shall give the Operator a notice stating the nature of any such defect together with all available evidence thereof, promptly following the discovery thereof. The Owner shall give all reasonable opportunity for the Operator to inspect any such defect.

(6) The Owner shall give the Operator all necessary access to the New Facility and the Site to enable the Operator to perform its obligations under this GC Section 9.1.

(7) The Operator may, with the consent of the Owner, remove from the Site any Plant and Equipment, Operator's Equipment (Design-Build) and Operator's Equipment (Operations) or any part of the New Facility that are defective if the nature of the defect, or any damage to the New Facility caused by the defect, is such that repairs cannot be expeditiously carried out at the Site.

(8) If the repair, replacement or making good is of such a character that it may affect the efficiency of the New Facility or any part thereof, the Owner may give to the Operator a notice requiring that tests of the defective part of the New Facility shall be made by the Operator immediately upon completion of such remedial work, whereupon the Operator shall carry out such tests.

(9) If such part fails the tests, the Operator shall carry out further repair, replacement or making good, as the case may be, until that part of the New Facility passes such tests. The tests shall be agreed upon by the Owner and the Operator.

Page 130: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 39 of 56

(10) If the Operator fails to commence the work necessary to remedy such defect or any damage to the New Facility caused by such defect within a reasonable time, which shall in no event be considered to be less than 15 days, the Owner may, following notice to the Operator, proceed to do such work, and the reasonable costs incurred by the Owner in connection therewith shall be paid to the Owner by the Operator or may be deducted by the Owner from any monies due the Operator or claimed under the Performance Security.

(11) If the New Facility or any part thereof cannot be used by reason of such defect or making good of such defect, the Defect Liability Period of the New Facility or such part, as the case may be, shall be extended by a period equal to the period during which the New Facility or such part cannot be used by the Owner because of any of the aforesaid reasons.

(12) Except as provided in GC Sections 9.1 and 9.5, the Operator shall be under no liability whatsoever and howsoever arising, and whether under the Contract or at law, in respect of defects in the New Facility or any part thereof, the Plant and Equipment, design or engineering or work executed that appear after Completion of the Site, the New Facility or any part thereof, except where such defects are the result of the gross negligence, fraud, criminal or wilful action of the Operator.

(13) The Operator shall also provide an extended warranty for any such component of the New Facility and during the period of time as may be specified in the SCC. Such obligation shall be in addition to the Defect Liability Period specified under GC Section9.1(2).

9.2 Limitation of Liability

Except in cases of criminal negligence or wilful misconduct,

(a) the Operator shall not be liable to the Owner in contract, tort, or otherwise, for any indirect or consequential loss or damage, loss of use, loss of production, or loss of profits of interest costs, provided that this exclusion shall not apply to any obligation of the Operator to pay liquidated damages to the Owner; and

(b) the aggregate liability of the Operator to the Owner, whether under the Contract, in tort or otherwise, shall not exceed the aggregate of the total Contract Price (including the Quarterly Payment during the Operations Period) and the total available Performance Incentive Compensation, provided that this limitation shall not apply to any obligation of the Operator to indemnify the Owner with respect to patent infringement.

9.3 Transfer of Ownership and Existing Equipment and Materials

9.3.1 Transfer of Ownership

(1) Ownership of the Plant and Equipment, including spare parts, to be imported into the Country shall be transferred to the Owner upon delivery at the Site.

(2) Ownership of the Plant and Equipment procured in the Country shall be transferred to the Owner when the Plant and Equipment are brought on to the Site.

(3) Ownership of any Plant and Equipment in excess of the requirements of the New Facility shall revert to the Operator upon Completion of the New Facility or such earlier time if the Owner and the Operator agree that the Plant and Equipment in question are no longer required for the New Facility.

Page 131: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 40 of 56

(4) Subject to GC Section 9.3.1(5), ownership of the Operator's Equipment (Design-Build) and Operator's Equipment (Operations), including spare parts, shall remain with the Operator or its Subcontractors.

(5) The Owner may, in its sole discretion, purchase as of the End Date any of the Operator’s Equipment (Operations), including spare parts, at the fair market value of such Operator’s Equipment (Operations) as determined by an independent valuator and the Operator shall transfer ownership and possession of such Operator’s Equipment (Operations) to the Owner as of the End Date.

(6) Notwithstanding the transfer of ownership of the Plant and Equipment, the responsibility for care and custody of the Plant and Equipment, Operator's Equipment (Design-Build) and Operator's Equipment (Operations), together with the risk of loss or damage thereto, shall remain with the Operator pursuant to GC Section9.4 until the End Date.

9.3.2 Existing Equipment and Materials Comment: To discuss whether this is relevant or it should be deleted.

(1) The Owner shall transfer the care, control and responsibility for all existing equipment, materials, supplies and consumables, if any, used to operate and maintain the Existing Facility (the “Existing Equipment and Materials”) to the Operator on the Design-Build Starting Date at no cost to the Operator.

(2) The Operator shall, no later than 15 days after the Design-Build Starting Date prepare a list of the Existing Equipment and Materials and submit it to the Owner for its review and approval. The Operator shall update the list of Existing Equipment and Materials annually and submit it to the Owner for its review and approval.

(3) The Operator shall return all Existing Equipment and Materials on the list, as updated, to the Owner on the End Date in the same condition as they were transferred to the Operator, except for reasonable wear and tear and at no cost to the Owner.

9.4 Care of the Site and New Facility

(1) Except as provided in GC Sections9.9 and 9.4(2),the Operator shall be responsible for the care and custody of the Site and New Facility or any part thereof until the End Date and shall make good at its own cost any loss or damage that may occur to the Site or New Facility from any cause whatsoever during such period. The Operator shall also be responsible for any loss or damage to the Site or New Facility caused by the Operator or its Subcontractors in the course of any work carried out, pursuant to GC Section 9.1.

(2) If any loss or damage occurs to the Site or New Facility or any part thereof by reason of,

(a) insofar as they relate to the Country, nuclear reaction, nuclear radiation, radioactive contamination, pressure wave caused by aircraft or other aerial objects, or any other occurrences that an experienced contractor or operator could not reasonably foresee, or if reasonably foreseeable could not reasonably make provision for or insure against, insofar as such risks are not normally insurable on the insurance market and are mentioned in the general exclusions of the policy of insurance, including War Risks, taken out under GC Section 9.6;

Page 132: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 41 of 56

(b) any use or occupation by the Owner or any Third Party, other than a Subcontractor, authorized by the Owner of any part of the Site or New Facility; or

(c) any use of or reliance upon any design, data or specification provided or designated by or on behalf of the Owner, or any such matter for which the Operator has disclaimed responsibility herein,

the Owner shall pay to the Operator all sums payable in respect of the Site or New Facility executed, notwithstanding that the same be lost, destroyed or damaged. If the Owner requests the Operator in writing to make good any loss or damage to the New Facility thereby occasioned, the Operator shall make good the same at the cost of the Owner in accordance with GC Section 10.1. If the Owner does not request the Operator in writing to make good any loss or damage to the New Facility thereby occasioned, the Owner shall either request a change in accordance with GC Section 10.1, excluding the performance of that part of the New Facility thereby lost, destroyed or damaged, or, where the loss or damage affects a substantial part of the New Facility, the Owner shall terminate the Contract pursuant to GC Section 11.2.1.

(3) The Operator shall be liable for any loss of or damage to any Operator's Equipment (Design-Build), Operator's Equipment (Operations) or any other property of the Operator used or intended to be used for purposes of the Site or the New Facility, except where such loss or damage arises by reason of any of the matters specified in GC Sections 9.4(2)(b) and 9.9.

(4) With respect to any loss or damage caused to the New Facility or any part thereof, the Operator's Equipment (Design-Build) or the Operator's Equipment (Operations) by reason of any of the matters specified in GC Section9.9(1), the provisions of GC Section9.9(3) shall apply.

9.5 Indemnification

(1) Subject to GC Section9.5(5), the Operator shall indemnify and hold harmless the Owner and its employees and officers from and against any and all suits, actions or administrative proceedings, claims, demands, losses, damages, costs, and expenses of whatsoever nature, including attorney’s fees and expenses, in respect of the death or injury of any person or loss of or damage to any property, arising in connection with the Operator’s performance of the Services and by reason of the negligence of the Operator or its Subcontractors, or their employees, officers or agents, except any injury, death or property damage caused by the negligence of the Owner, its contractors, employees, officers or agents.

(2) If any proceedings are brought or any claim is made against the Owner that might subject the Operator to liability under GC Section 9.5(1), the Owner shall promptly give the Operator a notice thereof and the Operator may at its own expense and in the Owner’s name conduct such proceedings or claim and any negotiations for the settlement of any such proceedings or claim.

(3) If the Operator fails to notify the Owner prior to the expiration of 30 days after receipt of a notice given pursuant to GC Section 9.5(2) that it intends to conduct any such proceedings or claim, then the Owner shall be free to conduct the same on its own behalf. Unless the Operator has so failed to notify the Owner within the 30 day period, the Owner shall make no admission that may be prejudicial to the defense of any such proceedings or claim.

(4) The Owner shall, at the Operator’s request, provide all available assistance to the Operator in conducting such proceedings or claim, and shall be reimbursed by the Operator for all reasonable expenses incurred in so doing.

Page 133: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 42 of 56

(5) The Owner shall indemnify and hold harmless the Operator and its employees, officers and Subcontractors from any liability for loss of or damage to property of the Owner that is caused by fire, explosion or any other perils, in excess of the amount recoverable from insurances procured under GC Section 9.6, provided that such fire, explosion or other perils were not caused by any act or omission of the Operator.

(6) The Party entitled to the benefit of an indemnity under this GC Section9.5 shall take all reasonable measures to mitigate any loss or damage which has occurred. If the Party fails to take such measures, the other Party’s liabilities shall be correspondingly reduced.

9.6 Insurance

(1) To the extent specified in the SCC, the Operator shall, at its own expense, take out and maintain in effect or cause to be taken out and maintained in effect, during the performance of the Contract, the insurances set forth below in the sums and with the deductibles and other conditions specified in the SCC. The identity of the insurers and the form of the policies shall be subject to the prior approval of the Owner who shall not unreasonably withhold such approval. The Operator shall submit appropriate certificates of insurance demonstrating that the Operator has met its obligations pursuant to this GC Section 9.6 to the Owner no later than the Effective Date.

(a) Cargo Insurance During Transport Covering loss or damage, occurring while in transit from the Operator’s or Subcontractor’s works or stores until arrival at the Site, to the Plant and Equipment, Operator's Equipment (Design-Build) and Operator's Equipment (Operations), including spare parts therefor;

(b) Installation All Risks Insurance Covering physical loss or damage to the New Facility at the Site occurring prior to the Completion of the New Facility, with an extended maintenance coverage for the Operator’s liability in respect of any loss or damage occurring during the Defect Liability Period while the Operator is on the Site for the purpose of performing its obligations during the Defect Liability Period;

(c) Third Party Liability Insurance Covering bodily injury or death suffered by Third Parties, including the Owner’s personnel, and loss of or damage to property occurring in connection with the Services;

(d) Professional Liability Insurance Covering loss or damage by reason of professional negligence in the design, construction and operation of the Site and New Facility;

(e) Automobile Liability Insurance Covering use of all vehicles used by the Operator or its Subcontractors, whether or not owned by them, in connection with the Services and execution of the Contract;

(f) Workers’ Compensation In accordance with the requirements of the Applicable Law;

(g) Employer’s Liability In accordance with the requirements of the Applicable Law; and

(h) Other Insurance Such other insurance as may be set out in the SCC.

Page 134: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 43 of 56

(2) The Owner shall be named as co-insured under all insurance policies taken out by the Operator pursuant to GC Section 9.6(1), except for the Third Party Liability, Workers’ Compensation and Employer’s Liability Insurances, and the Operator’s Subcontractors shall be named as co-insureds under all insurance policies taken out by the Operator pursuant to GC Section9.6(1), except for the Cargo Insurance During Transport, Workers’ Compensation and Employer’s Liability Insurances. All insurers’ rights of subrogation against such co-insureds for losses or claims arising out of the performance of the Contract shall be waived under such policies.

(3) The Operator shall deliver to theOwner certificates of insurance, or copies of the insurance policies, as evidence that the required policies are in full force and effect. The certificates shall provide that no less than 21 days notice shall be given to theOwner by insurers prior to cancellation or material modification of a policy.

(4) The Operator shall ensure that, where applicable, the Subcontractors take out and maintain in effect adequate insurance policies for their employees and vehicles and for work executed by them under the Contract, unless such Subcontractors are covered by the policies taken out by the Operator.

(5) If the Operator fails to take out or maintain in effect the insurances referred to in GC Section 9.6(1), theOwner may take out and maintain in effect any such insurances and may from time to time deduct from any amount due the Operator under the Contract any premium that theOwner shall have paid to the insurer, or may otherwise recover such amount as a debt due from the Operator.

(6) Unless otherwise provided in the Contract, the Operator shall prepare and conduct all and any claims made under the policies effected by it pursuant to this GC Section 9.6, and all monies payable by any insurers shall be paid to the Operator. TheOwner shall give to the Operator all such reasonable assistance as may be required by the Operator. With respect to insurance claims in which theOwner’s interest is involved, the Operator shall not give any release or make any compromise with the insurer without the prior consent of theOwner.

(7) When each insurance premium has been paid, the Operator shall submit a copy of receipts to theOwner and shall notify the Owner’s Representative that it has done so.

(8) The Operator shall comply with the conditions stipulated in each of the insurance policies. The Operator shall make no material alteration to the terms of any insurance without the prior approval of theOwner. If an insurer makes, or purports to make, any such alteration, the Operator shall notify theOwner immediately.

(9) Nothing in this GC Section 9.6 limits the obligations, liabilities or responsibilities of the Operator, under the other terms of the Contract or otherwise. Any amounts not insured or not recovered from the insurers shall be borne by the Operator.

9.7 Unforeseeable Physical Conditions

(1) In this GC Section 9.7, “physical conditions” means natural physical conditions and man-made and other physical obstructions and pollutants, which the Operator encounters at the Site when performing of the Design-Build Services, including sub-surface and hydrological conditions but excluding climatic conditions.

(2) If the Operator encounters adverse physical conditions which it considers to have been Unforeseeable, the Operator shall give notice to the Design-Build Engineer as soon as practicable.

Page 135: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 44 of 56

(3) The Operator’s Notice pursuant to GC Section9.7(2)shall describe the physical conditions, so that they can be inspected by the Design-Build Engineer, and shall set out the reasons why the Operator considers them to be Unforeseeable. The Operator shall continue performing the Design-Build Services, using such proper and reasonable measures as are appropriate for the physical conditions, and shall comply with any instructions which the Design-Build Engineer may give. If an instruction constitutes a Change GC Section 10.1.3shall apply.

(4) If and to the extent that the Operator encounters physical conditions which are Unforeseeable, gives the notice required by GC Section9.7(2), and suffers delay or incurs Cost due to these conditions, the Operator shall be entitled subject to GC Section1.9 to,

(a) an extension of time for any such delay, if completion is or will be delayed, under GC Section2.3.4; and

(b) payment of any such Cost, which shall be included in the Contract Price.

(5) After receiving such notice and inspecting or investigating these physical conditions, the Design-Build Engineer shall proceed in accordance with GC Section7.2.6 to agree or determine,

(a) whether and to what extent these physical conditions were Unforeseeable; and

(b) the amount of delay or Cost, if any, pursuant to GC Section9.7(4).

(6) Before additional Cost is finally agreed or determined under GC Section 9.7(5), the Design-Build Engineer, pursuant to GC Section7.2.6, may also review whether other physical conditions were more favourable than could reasonably have been foreseen when the Operator submitted the Bid. If and to the extent that these more favourable conditions were encountered, the Design-Build Engineer may proceed in accordance with GC Section7.2.6 to agree or determine the reductions in Cost which were due to these conditions, which may be included, as deductions, in the Contract Price. The net effect of all adjustments under GC Section9.7(4)(b) and all these reductions, for all the physical conditions encountered on the Site, shall not result in a net reduction in the Contract Price.

(7) The Design-Build Engineer may take account of any evidence of the physical conditions foreseen by the Operator when submitting the Bid, which may be made available by the Operator, but shall not be bound by any such evidence.

9.8 Force Majeure

(1) “Force Majeure” shall mean any event,

(a) beyond the reasonable control of the Owner or of the Operator, as the case may be; and

(b) which is unavoidable notwithstanding the reasonable care of the Party affected.

(2) Force Majeure shall include the events listed below in this GC Section9.8(2) if the conditions set out in GC Section9.8(1)(a) and (b) are satisfied:

(a) war, hostilities or warlike operations, whether a state of war be declared or not, invasion, act of foreign enemy and civil war;

(b) rebellion, revolution, insurrection, mutiny, usurpation of civil or military government, conspiracy, riot, civil commotion and terrorist acts;

Page 136: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 45 of 56

(c) confiscation, nationalization, mobilization, commandeering or requisition by or under the order of any government or de jure or de facto authority or ruler or any other act or failure to act of any local state or national government authority;

(d) strike, sabotage, lockout, embargo, import restriction, port congestion, lack of usual means of public transportation and communication, industrial dispute, shipwreck, shortage or restriction of power supply, epidemics, quarantine and plague;

(e) earthquake, landslide, volcanic activity, fire, flood or inundation, tidal wave, typhoon or cyclone, hurricane, storm, lightning, or other inclement weather condition, nuclear and pressure waves or other natural or physical disaster; and

(f) shortage of labour, materials or utilities where caused by circumstances that are themselves Force Majeure.

(3) If the Parties are prevented, hindered or delayed from or in performing any of their obligations under the Contract by an event of Force Majeure, then it shall notify the other in writing of the occurrence of such event and the circumstances thereof within 14 days after the occurrence of such event.

(4) The Party who has given such notice shall be excused from the performance or punctual performance of its obligations under the Contract for so long as the relevant event of Force Majeure continues and to the extent that such Party’s performance is prevented, hindered or delayed. The Time for Completion shall be extended in accordance with GC Section 2.3.4(1) for events of Force Majeure during the Design-Build Period. If the Time for Completion is extended in accordance with GC Section 2.3.4(1), the End Date shall be extended for a period of time equal to the period of time during which the relevant event of Force Majeure continued.

(5) The Party or Parties affected by the event of Force Majeure shall use reasonable efforts to mitigate the effect thereof upon its or their performance of the Contract and to fulfil its or their obligations under the Contract, but without prejudice to either Party’s right to terminate the Contract under GC Sections 9.8(7) and 9.9(6).

(6) No delay or non-performance by either Party hereto caused by the occurrence of any event of Force Majeure shall,

(a) constitute a default or breach of the Contract; or

(b) subject to GC Sections 9.4(2), 9.9(3) and 9.9(5), give rise to any claim for damages or additional Cost occasioned thereby,

if and to the extent that such delay or non-performance is caused by the occurrence of an event of Force Majeure.

(7) If the performance of the Contract is substantially prevented, hindered or delayed for a single period of more than 60 days or an aggregate period of more than 120 days on account of one or more events of Force Majeure during the term of the Contract, the Parties will attempt to develop a mutually satisfactory solution, failing which either Party may terminate the Contract by giving a notice to the other, but without prejudice to either Party’s right to terminate the Contract under GC Section9.9(6).

Page 137: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 46 of 56

(8) In the event of termination pursuant to GC Section9.8(7), the rights and obligations of the Owner and the Operator shall be as specified in GC Sections11.2.1(2) and 11.2.2(1).

(9) Notwithstanding GC Section9.8(6), Force Majeure shall not apply to any obligation of the Owner to make payments to the Operator herein.

9.9 War Risks

(1) “War Risks” shall mean any event specified in GC Section9.8(2)(a) and (b) and any explosion or impact of any mine, bomb, shell, grenade or other projectile, missile, munitions or explosive of war, occurring or existing in or near the Country.

(2) Notwithstanding anything contained in the Contract, the Operator shall have no liability whatsoever for or with respect to,

(a) destruction of or damage to the Site and Plant and Equipment or any part thereof;

(b) destruction of or damage to property of the Owner or any Third Party; or

(c) injury or loss of life,

if such destruction, damage, injury or loss of life is caused by any War Risks, and the Owner shall indemnify and hold the Operator harmless from and against any and all claims, liabilities, actions, lawsuits, damages, costs, charges or expenses arising in consequence of or in connection with the same.

(3) If the Site, New Facility or any Plant and Equipment, Operator's Equipment (Design-Build), Operator's Equipment (Operations) or any other property of the Operator used or intended to be used for the purposes of the Services sustains destruction or damage by reason of any War Risks, the Owner shall pay the Operator for,

(a) any part of the New Facility or the Plant and Equipment so destroyed or damaged, to the extent not already paid for by the Owner;

(b) replacing or making good any Operator's Equipment (Design-Build), Operator's Equipment (Operations) or other property of the Operator so destroyed or damaged; and

(c) so far as may be required by the Owner, and as may be necessary for completion of the Services, replacing or making good any such destruction or damage to the Site, New Facility or the Plant and Equipment or any part thereof.

(4) If the Owner does not require the Operator to replace or make good any such destruction or damage to the Site or New Facility, the Owner shall either request a Change in accordance with GC Section10.1 excluding the performance of that part of the New Facility thereby destroyed or damaged or, where the loss, destruction or damage affects a substantial part of the Site or New Facility, shall terminate the Contract, pursuant to GC Section11.2.1.

(5) Notwithstanding anything contained in the Contract, the Owner shall pay the Operator for any increased Costs that are in any way attributable to, consequent on, resulting from, or in any way connected with any War Risks, if the Operator notifies the Owner in writing of any such increased Cost as soon as practicable.

Page 138: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 47 of 56

(6) If, during the term of the Contract, any War Risks occur that financially or otherwise materially affect the execution of the Contract by the Operator, the Operator shall use its reasonable efforts to execute the Contract with due and proper consideration given to the safety of its and its Subcontractors’ personnel engaged in the work on the Services. If the execution of the Services becomes impossible or is substantially prevented for a single period of more than 60 days or an aggregate period of more than 120 days on account of any War Risks, the Parties will attempt to develop a mutually satisfactory solution, failing which either Party may terminate the Contract by giving a notice to the other.

(7) In the event of termination pursuant to GC Section 9.9(4) or 9.9(6), the rights and obligations of the Owner and the Operator shall be as specified in GC Section 11.2.1(2) and 11.2.2(1).

9.10 Change in Laws and Regulations

If, after a date which 30 days is prior to the Submission Deadline in the Bidding Documents, in the Country, any law, regulation, ordinance, order or by-law having the force of law is enacted, promulgated, abrogated or changed, which shall be deemed to include any change in interpretation or application by the competent authorities, that subsequently affects the costs and expenses of the Operator or the Time for Completion, the Contract Price shall be correspondingly increased or decreased, or the Time for Completion shall be reasonably adjusted to the extent that the Operator has thereby been affected in the performance of any of its obligations under the Contract. Notwithstanding the foregoing, such additional or reduced costs shall not be separately paid or credited if the same has already been accounted for in the Contract Price adjustment provisions where applicable, in accordance with the SCC if so provided.

9.11 Patent Indemnity

9.11.1 Indemnity by Operator

The Operator shall indemnify and hold harmless theOwnerand its employees and officers from and against any and all suits, actions or administrative proceedings, claims, demands, losses, damages, costs, and expenses of whatsoever nature, including attorney’s fees and expenses, which theOwnermay suffer as a result of any infringement or alleged infringement by the Operator, Subcontractors, or their employees, agents, or representatives, of any patent, utility model, registered design, trademark, copyright or other intellectual property right registered or otherwise existing.

9.11.2 Notice of Claim

(1) If any proceedings are brought or any claim is made against theOwner arising out of the matters referred to in GC Section 9.11.1, theOwner shall promptly give the Operator a notice thereof, and the Operator may at its own expense and in theOwner’s name conduct such proceedings or claim and any negotiations for the settlement of any such proceedings or claim.

(2) If the Operator fails to notify theOwner no later than 30 days after receipt of such notice that it intends to conduct any such proceedings or claim, then theOwner shall be free to conduct the same on its own behalf. Unless the Operator has so failed to notify theOwner no later than the 30 day period, theOwner shall make no admission that may be prejudicial to the defence of any such proceedings or claim.

(3) TheOwner shall, at the Operator’s request, give all available assistance to the Operator in conducting such proceedings or claim, and shall be reimbursed by the Operator for all reasonable expenses incurred in so doing.

Page 139: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 48 of 56

9.11.3 Indemnity byOwner

TheOwnershall indemnify and hold harmless the Operator and its employees, officers and Subcontractors from and against any and all suits, actions or administrative proceedings, claims, demands, losses, damages, costs, and expenses of whatsoever nature, including attorney’s fees and expenses, which the Operator may suffer as a result of any infringement or alleged infringement by theOwnerof any patent, utility model, registered design, trademark, copyright or other intellectual property right registered or otherwise existing at the Effective Date arising out of or in connection with any design, data, drawing, specification, or other documents or materials provided or designed by or on behalf of the Owner.

9.12 Functional Guarantees

(1) The Operator guarantees that during the Tests and Inspection set out in DBSA Article 5, the New Facility and all parts thereof shall attain the Functional Guarantees specified in Attachment 1 to the Technical Standards Appendix (the “Functional Guarantees”), subject to and upon the conditions therein specified.

(2) If, for reasons attributable to the Operator, the minimum level of the Functional Guarantees are not met either in whole or in part, the Operator shall at its cost and expense make any such changes, modifications or additions to the New Facility or any part thereof as may be necessary to meet at least the minimum level of the Functional Guarantees. The Operator shall notify the Owner upon completion of the necessary changes, modifications or additions, and shall request the Owner to repeat the applicable Tests and Inspection until the minimum level of the Functional Guarantees has been met. If the Operator eventually fails to meet the minimum level of Functional Guarantees, the Owner may consider termination of the Contract, pursuant to GC Section 11.2.3.

(3) If, for any reasons attributable to the Operator, the Functional Guarantees are not attained either in whole or in part, but the minimum level of the Functional Guarantees is met, the Operator shall, at the Operator’s option, either

(a) make such changes, modifications or additions to the New Facility or any part thereof that are necessary to attain the Functional Guarantees at its cost and expense, and shall request the Owner to repeat the Tests and Inspection; or

(b) pay liquidated damages to the Employer in respect of the failure to meet the Functional Guarantees in accordance with the provisions of the Liquidated Damages Appendix.

(4) The payment of liquidated damages under GC Section 9.12(3) up to the limitation of liability specified in the SCC, shall completely satisfy the Operator’s guarantees under GC Section 9.12(3), and the Operator shall have no further liability whatsoever to the Owner in respect thereof.

Page 140: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 49 of 56

G . C H ANG E I N C ONT R AC T E L E M E NT S

AR T I C L E 10 - CHANGE IN CONTRACT ELEMENTS

10.1 Change to the Design-Build Services

10.1.1 Introducing a Change

(1) Subject to GC Sections10.1.2(6) and 10.1.2(10), the Owner shall have the right to propose, and subsequently require, that the Design-Build Engineer order the Operator from time to time during the performance of the Contract to make any change, modification, addition or deletion to, in or from the Design-Build Services (the “Change”), provided that such Change falls within the general scope of the Design-Build Services and does not constitute unrelated work and that it is technically practicable, taking into account both the state of advancement of the Design-Build Services and the technical compatibility of the Change envisaged with the nature of the Design-Build Services as specified in the Contract.

(2) The Operator may from time to time during its performance of the Contract propose to the Owner, with a copy to the Design-Build Engineer, any Change that the Operator considers necessary or desirable to improve the quality, efficiency or safety of the Design-Build Services. The Owner may at its discretion approve or reject any Change proposed by the Operator.

(3) Notwithstanding GC Section 10.1.1(1) and 10.1.1(2), no change made necessary because of any default of the Operator in the performance of its obligations under the Contract shall be deemed to be a Change, and such change shall not result in any adjustment of the Contract Price or the Time for Completion.

(4) The procedure on how to proceed with and execute Changes is specified in GC Section 10.1.2 and 10.1.3, and the Design-Build Engineer shall provide Operator with further details and sample forms on the Change procedures prior to the Design-Build Starting Date.

10.1.2 Changes Originating from Owner

(1) If the Owner proposes a Change pursuant to GC Section10.1.1(1), it shall send to the Operator a “Request for Change Proposal,” requiring the Operator to prepare and furnish to the Design-Build Engineer as soon as reasonably practicable a “Change Proposal,” which shall include the following:

(a) brief description of the Change;

(b) effect on the Time for Completion;

(c) estimated cost of the Change; and

(d) effect on any other provisions of the Contract.

(2) Prior to preparing and submitting the Change Proposal, the Operator shall submit to the Design-Build Engineer an “Estimate for Change Proposal,” which shall be an estimate of the cost of preparing and submitting the Change Proposal.

(3) Upon receipt of the Operator’s Estimate for Change Proposal, the Owner shall,

Page 141: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 50 of 56

(a) accept the Operator’s estimate with instructions to the Operator to proceed with the preparation of the Change Proposal;

(b) advise the Operator of any part of its Estimate for Change Proposal that is unacceptable and request the Operator to review its estimate; or

(c) advise the Operator that the Owner does not intend to proceed with the Change.

(4) Upon receipt of the Owner’s instruction to proceed under GC Section10.1.2(3)(a) (the “Change Order”), the Operator shall, with proper expedition, proceed with the preparation of the Change Proposal, in accordance with GC Section10.1.2(1).

(5) The pricing of any Change shall, as far as practicable, be calculated in accordance with the prices included in the Contract. If such prices are inequitable, the Parties thereto shall agree on specific rates for the valuation of the Change.

(6) If, before or during the preparation of the Change Proposal, it becomes apparent that the aggregate effect of compliance therewith and with all other Change Orders that have already become binding upon the Operator under this GC Section10.1 would be to increase or decrease the Contract Price by more than 15 per cent, the Operator may give a written notice of objection thereto prior to furnishing the Change Proposal. If the Owner accepts the Operator’s objection, the Owner shall withdraw the proposed Change and shall notify the Operator in writing thereof.

(7) The Operator’s failure to object pursuant to GC Section10.1.2(6)shall neither affect its right to object to any subsequent requested Changes or Change Orders herein, nor affect its right to take into account, when making such subsequent objection, the percentage increase or decrease in the Contract Price that any Change not objected to by the Operator represents.

(8) Upon receipt of the Change Proposal, the Owner and the Operator shall mutually agree upon all matters therein contained. No later than 14 days after such agreement, the Owner shall, if it intends to proceed with the Change, issue the Operator with a Change Order.

(9) If the Owner decides not to proceed with the Change for whatever reason, it shall notify the Operator prior to the expiration of 14 days after the agreement on the Change. Under such circumstances, the Operator shall be entitled to reimbursement of all costs reasonably incurred by it in the preparation of the Change Proposal, provided that these do not exceed the amount given by the Operator in its Estimate for Change Proposal submitted in accordance with GC Section 10.1.2(2).

(10) If the Owner and the Operator cannot reach agreement on the price for the Change, an equitable adjustment to the Time for Completion, or any other matters identified in the Change Proposal, the Owner may nevertheless instruct the Operator to proceed with the Change by issue of a “Pending Agreement Change Order.”

(11) Upon receipt of a Pending Agreement Change Order, the Operator shall immediately proceed with effecting the Changes covered by such Order. The parties shall thereafter attempt to reach agreement on the outstanding issues under the Change Proposal.

(12) If the Parties cannot reach agreement prior to the expiration of 60 days after the date of issue of the Pending Agreement Change Order, then the matter may be referred to the Adjudicator in accordance with the provisions of GC Section1.6.1.

Page 142: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 51 of 56

10.1.3 Changes Originating from Operator

(1) If the Operator proposes a Change pursuant to GC Section10.1.1(2), the Operator shall submit to the Design-Build Engineer a written “Application for Change Proposal,” giving reasons for the proposed Change and including the information specified in GC Section10.1.2(1).

(2) Upon receipt of the Application for Change Proposal, the Parties shall follow the procedures outlined in GC Sections10.1.2(8) and 10.1.2(10). If the Owner chooses not to proceed, the Operator shall not be entitled to recover the costs of preparing the Application for Change Proposal.

10.1.4 Payment in Applicable Currencies

If the Contract provides for payment of the Contract Price in more than one currency, then whenever a Change is agreed, approved or determined pursuant to GC Section 10.1.2 or 10.1.3, the amount payable in each of the applicable currencies shall be specified. For this purpose, reference shall be made to the actual or expected currency proportions of the Cost of the Change, and to the proportions of various currencies specified for payment of the Contract Price.

10.1.5 Design-Build Period

GC Sections 10.1.1 to 10.1.4 shall apply during only the Design-Build Period.

10.2 Change to the Operations Services

(1) Except as specifically provided in GC Section 10.2(2) or elsewhere in the Contract, the Operator shall make no claim whatsoever for any adjustment to the Contract Price during the New Operations Period.

(2) The Operator or the Owner may request an adjustment to the Monthly Operations Payment if the mass of waste delivered to the Site changes in accordance with the SCC. In the event of such a change to the volume of waste, the Operator or the Owner, as applicable, shall be entitled to receive an increase or decrease equal to the actual increase or decrease in Cost demonstrated by the Operator. The Operator or the Owner shall submit a request for an adjustment pursuant to this GC Section10.2 to the employer.

Page 143: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 52 of 56

AR T I C L E 11 - SUSPENSION AND TERMINATION

11.1 Suspension

11.1.1 Suspension by the Owner

(1) The Owner may request the Design-Build Engineer as applicable, by notice to the Operator, to order the Operator to suspend performance of any or all of its obligations under the Contract. Such notice shall specify the obligation of which performance is to be suspended, the effective date of the suspension and the reasons therefor. The Operator shall thereupon suspend performance of such obligation, except those obligations necessary for the care or preservation of the Site or New Facility, until ordered in writing to resume such performance by the Design-Build Engineer or as applicable.

(2) If, by virtue of a suspension order given by the Design-Build Engineer, as applicable, other than by reason of the Operator’s default or breach of the Contract, the Operator’s performance of any of its obligations is suspended for an aggregate period of more than 90 days, then at any time thereafter and provided that at that time such performance is still suspended, the Operator may give a notice to the Design-Build Engineer or as applicable, requiring that the Owner shall, no later than 30 days after the Owner’s receipt of the notice, order the resumption of such performance or request and subsequently order a Change in accordance with GC Section10.1, excluding the performance of the suspended obligations from the Contract.

(3) If the Owner fails to order the resumption of performance in accordance with GC Section11.1.1(2), the Operator may, by a further notice to the Design-Build Engineer, as applicable, elect to treat the suspension, where it affects a part only of the Services, as a deletion of such part in accordance with GC Section 10.1 or, where it affects the whole of the Services, as termination of the Contract pursuant to GC Section11.2.1.

11.1.2 Suspension by the Operator

(1) If, the Owner has,

(a) failed to pay the Operator any sum due under the Contract within the period specified in the Contract;

(b) failed to approve any invoice or supporting documents without just cause under the Contract; or

(c) has committed a substantial breach of the Contract,

the Operator may give a notice to the Owner that requires payment of such sum, with interest thereon as stipulated in GC Section5.2(3) requires approval of an invoice or supporting documents, or specifies a breach and requires the Owner to remedy the same, as the case may be.

(2) If the Owner fails to pay the sums required by the Operator in accordance with GC Section11.1.2(1) or fails to remedy the breach or take steps to remedy the breach no later than 14 days after receipt of the Operator’s notice, then the Operator may, upon giving 14 days’ notice to the Owner, suspend performance of all or any of its obligations under the Contract, or, in the case of the Design-Build Services, reduce the Operator’s rate of progress.

Page 144: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 53 of 56

(3) If the Operator is unable to carry out any of its obligations under the Contract for any reason attributable to the Owner, including the Owner’s failure to provide possession of or access to the Site or other areas in accordance with GC Section 4.2, then the Operator may, upon giving 14 days’ notice to the Owner, suspend performance of all or any of its obligations under the Contract, or, in the case of the Design-Build Services, reduce the Operator’s rate of progress.

(4) If the Operator’s performance of its obligations is suspended or the rate of progress is reduced pursuant to this GC Section11.1.2, then the Time for Completion shall be extended in accordance with GC Section2.3.4, and additional Costs incurred by the Operator as a result of such suspension or reduction shall be paid by the Owner to the Operator in addition to the Contract Price, except in the case of suspension order or reduction in the rate of progress by reason of the Operator’s default or breach of the Contract.

(5) During the period of suspension, the Operator shall not remove from the Site or New Facility any Plant and Equipment, Operator's Equipment (Design-Build), Operator's Equipment (Operations), or any part of the New Facility, without the prior written consent of the Owner.

11.2 Termination

11.2.1 Termination for Owner’s Convenience

(1) The Owner may at any time terminate the Contract for any reason by giving the Operator a notice of termination that refers to this GC Section 11.2.1(1).

(2) Upon receipt of the notice of termination under GC Section 11.2.1(1),

(a) the Operator shall, either immediately or upon the date specified in the notice of termination,

(i) cease all further work, except for such work as the Owner may specify in the notice of termination for the sole purpose of protecting that part of the Facility already executed, or any work required to leave the Site in a clean and safe condition;

(ii) terminate all Subcontracts; and

(iii) remove all Operator’s Equipment (Design-Build) and, except if the Owner asserts its rights pursuant to GC Section 9.3.1(5), Operator’s Equipment (Operations) from the Site, repatriate the Operator’s Personnel and its Subcontractors’ personnel from the Site, remove from the Site any wreckage, rubbish and debris of any kind, and leave the whole of the Site in a clean and safe condition; and

(b) the Operator, subject to the payment specified in GC Section 11.2.2, shall,

(i) deliver to the Owner the parts of the New Facility executed by the Operator up to the date of termination; and

(ii) deliver to the Owner all the Contract Records, including the Design-Build Documents, prepared by the Operator or its Subcontractors as at the date of termination.

Page 145: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 54 of 56

11.2.2 Payment upon Termination by the Owner for Convenience

(1) Upon termination of this Contract pursuant to GC Section 11.2.1, theOwner shall make only the following payments to the Operator,

(a) any portion of the Contract Price payable to the Operator for Services satisfactorily performed prior to the date of termination and calculated as set out in GC Section 5.2;

(b) the Costs reasonably incurred by the Operator in the removal of the Operator’s Equipment (Design-Build) and, except if the Owner asserts its rights pursuant to GC Section 9.3.1(5), Operator’s Equipment (Operations) from the Site and in the repatriation of the Operator’s Personnel and its Subcontractors’ personnel;

(c) any amounts required to be paid by the Operator to its Subcontractors in connection with the termination of any Subcontracts, including any reasonable cancellation charges;

(d) the reasonable Costs incurred by the Operator in protecting the Site, Existing Facility and New Facility and leaving the Site in a clean and safe condition pursuant to GC Section 11.2.1(2)(a)(i); and

(e) the reasonable Cost of satisfying all other obligations, commitments and claims that the Operator may in good faith have undertaken with Third Parties in connection with the Contract and that are not covered by GC Section11.2.2(1).

(2) The Operator acknowledges that the only payments to be made to the Operator on termination by theOwner are set out in this GC Section 11.2.2. The Operator shall not make a claim for lost or foregone profits, revenues, consequential damages or any other costs, damages, expenses or losses of any kind as a result of or in connection with the termination of this Contract.

11.2.3 Termination for Operator’s Default

(1) The Owner, without prejudice to any other rights or remedies it may possess, may terminate the Contract forthwith in the following circumstances, by giving a notice of termination and its reasons therefor to the Operator, referring to this GC Section 11.2.3(1):

(a) If the Operator becomes bankrupt or insolvent, has a receiving order issued against it, compounds with its creditors, or, if the Operator is a corporation, a resolution is passed or order is made for its winding up, other than a voluntary liquidation for the purposes of amalgamation or reconstruction, a receiver is appointed over any part of its undertaking or assets, or if the Operator takes or suffers any other analogous action in consequence of debt;

(b) If the Operator assigns or transfers the Contract or any right or interest therein in violation of the provision of GC Section 1.7; or

(2) If the Operator,

(a) has abandoned or repudiated the Contract;

(b) has without valid reason failed to commence work on the Site or New Facility promptly or has suspended, other than pursuant to GC Section 11.1.1(2), the

Page 146: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 55 of 56

progress of Contract performance for more than 30 days after receiving a written instruction from the Owner to proceed;

(c) persistently fails to carry out the Services in accordance with the Contract or persistently neglects to carry out its obligations under the Contract without just cause; or

(d) refuses or is unable to provide sufficient materials, services, labour or personnel to perform the Services,

then the Owner may, without prejudice to any other rights it may possess under the Contract, give a notice to the Operator stating the nature of the default and requiring the Operator to remedy the same. If the Operator fails to remedy or to take steps to remedy the same within 14 days after its receipt of such notice, then the Owner may terminate the Contract forthwith by giving a notice of termination to the Operator that refers to this GC Section 11.2.3(2).

(3) Upon receipt of the notice of termination under GC Sections 11.2.3(1) or 11.2.3(2)the Operator shall, either immediately or upon such date as is specified in the notice of termination,

(a) cease all further work, except for such work as the Owner may specify in the notice of termination for the sole purpose of protecting that part of the Site and New Facility already executed, or any work required to leave the Site and New Facility in a clean and safe condition;

(b) terminate all Subcontracts;

(c) deliver to the Owner the parts of the New Facility executed by the Operator up to the date of termination; and

(d) deliver to the Owner all Contract Records, including the Design-Build Documents, prepared by the Operator or its Subcontractors as of the date of termination.

(4) The Owner may enter the New Facility and upon the Site, expel the Operator, and, if the New Facility is not completed, the Owner may complete the Facility itself or by employing any Third Party. The Owner may, to the exclusion of any right of the Operator over the same, take over and use with the payment of a fair rental rate to the Operator, with all the maintenance costs to the account of the Owner and with an indemnification by the Owner for all liability including damage or injury to persons arising out of the Owner’s use of such equipment, any Operator's Equipment (Design-Build) and Operator's Equipment (Operations) owned by the Operator and on the Site in connection with the New Facility for such reasonable period as the Owner considers expedient for the completion of the New Facility. Upon completion of the New Facility or at such earlier date as the Owner thinks appropriate, the Owner shall give notice to the Operator that such Operator’s Equipment (Design-Build) and, except if the Owner asserts its rights pursuant to GC Section 9.3.1(5), Operator’s Equipment (Operations) will be returned to the Operator at or near the Site and shall return such Operator’s Equipment (Design-Build) and Operator’s Equipment (Operations) to the Operator in accordance with such notice. The Operator shall thereafter without delay and at its cost remove or arrange removal of the same from the Site.

11.2.3.1 Corrupt or Fraudulent Practices

If the Owner determines, based on reasonable evidence, that the Operator has engaged in corrupt, fraudulent, collusive or coercive practices, in competing for or in executing the Contract, then the Owner

Page 147: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 56 of 56

may, after giving 14 days’ notice to the Operator, terminate the Contract and expel him from the Site, and the provisions of Section11.2 shall apply as if such termination had been made under Section 11.2.3 [Termination for Operator’s Default].

Should any employee of the Operator be determined, based on reasonable evidence, to have engaged in corrupt, fraudulent or coercive practice during the execution of the work, then that employee shall be removed in accordance with Section8.4 [Replacement of Operator’s Personnel].

For the purposes of this Sub-Clause:

(i) “corrupt practice” is the offering, giving, receiving or soliciting, directly or indirectly, of anything of value to influence improperly the actions of another party;1

(ii) “fraudulent practice” is any act or omission, including a misrepresentation, that knowingly or recklessly misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid an obligation;

2

(iii) “collusive practice” is an arrangement between two or more parties designed to achieve an improper purpose, including to influence improperly the actions of another party;

3

(iv) “coercive practice” is impairing or harming, or threatening to impair or harm, directly or indirectly, any party or the property of the party to influence improperly the actions of a party;

4

(v) “obstructive practice” is

(aa) deliberately destroying, falsifying, altering or concealing of evidence material to the investigation or making false statements to investigators in order to materially impede a Bank investigation into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or threatening, harassing or intimidating any party to prevent it from disclosing its knowledge of matters relevant to the investigation or from pursuing the investigation, or

(bb) acts intended to materially impede the exercise of the Bank’s inspection and audit rights provided for under Section 1.8.5 [Inspections and Audits by the Bank].

11.2.4 Payment upon Termination for Operator’s Default

(1) If the Contract is terminated pursuant to GC Section 11.2.3 and, subject to GC Section 11.2.4(2), the Operator shall be entitled to be paid,

1 “Another party” refers to a public official acting in relation to the procurement process or contract execution]. In this context, “public official” includes World Bank staff and employees of other organizations taking or reviewing procurement decisions. 2 “Party” refers to a public official; the terms “benefit” and “obligation” relate to the procurement process or contract execution; and the “act or omission” is intended to influence the procurement process or contract execution. 3 “Parties” refers to participants in the procurement process (including public officials) attempting to establish bid prices at artificial, non competitive levels. 4 “Party” refers to a participant in the procurement process or contract execution.

Page 148: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 57 of 56

(a) any portion of the Contract Price payable to the Operator for Services satisfactorily performed prior to the date of termination;

(b) the value of any unused or partially used Plant and Equipment on the Site, except to the extent that such Plant and Equipment have already been paid for by the Owner; and

(c) the Costs, if any, incurred by the Operator in protecting the Site and New Facility and in leaving the Site in a clean and safe condition pursuant to GC Section 11.2.3(3)(a).

Any sums due the Owner from the Operator accruing prior to the date of termination shall be deducted from the amount to be paid to the Operator under this Contract.

(2) If the Owner completes the New Facility pursuant to GC Section 11.2.3(4), the cost of completing the New Facility by the Owner shall be determined, and, if the sum that the Operator is entitled to be paid, pursuant to GC Section 11.2.4(1), plus the reasonable costs incurred by the Owner in completing the New Facility, exceeds the Contract Price, the Operator shall be liable for such excess as follows;

(a) if such excess is greater than the sums due the Operator under GC Section 11.2.4(1), the Operator shall pay the balance to the Owner; or

(b) if such excess is less than the sums due the Operator under GC Section 11.2.4(1), the Owner shall pay the balance to the Operator.

(3) The Parties shall agree in writing on the computation described in GC Section 11.2.4(2) and the manner in which any sums shall be paid.

11.2.5 Termination by Operator

(1) If,

(a) the Owner has,

(i) failed to pay the Operator any sum due under the Contract within the specified period, has failed to approve any invoice or supporting documents without just cause pursuant to the corresponding Terms and Procedures of Payment Appendix, or commits a substantial breach of the Contract, the Operator may give a notice to the Owner that requires payment of such sum, with interest thereon as stipulated in GC Section 5.2(3), requires approval of such invoice or supporting documents, or specifies the breach and requires the Owner to remedy the same, as the case may be; and

(ii) failed to pay such sum together with such interest, failed to approve such invoice or supporting documents or give its reasons for withholding such approval, failed to remedy the breach or take steps to remedy the breach no later than 14 days after receipt of the Operator’s notice; or

(b) the Operator is unable to carry out any of its obligations under the Contract for any reason attributable to the Owner, including the Owner’s failure to provide possession of or access to the Site or other areas,

Page 149: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 58 of 56

then the Operator may give a notice to the Owner thereof, and if the Owner has failed to pay the outstanding sum, to approve the invoice or supporting documents, to give its reasons for withholding such approval, or to remedy the breach no later than 30 days after receipt of such notice, or if the Operator is still unable to carry out any of its obligations under the Contract for any reason attributable to the Owner no later than 30 days after receipt of the notice, the Operator may, by a further notice to the Owner referring to this GC Section 11.2.5(1), forthwith terminate the Contract.

(2) The Operator may terminate the Contract forthwith by giving a notice to the Owner to that effect, referring to this GC Section 11.2.5(2),

(a) if the Owner becomes bankrupt or insolvent;

(b) has a receiving order issued against it, or compounds with its creditors;

(c) being a corporation, if a resolution is passed or order is made for its winding up, other than a voluntary liquidation for the purposes of amalgamation or reconstruction; or

(d) a receiver is appointed over any part of its undertaking or assets, or if the Owner takes or suffers any other analogous action in consequence of debt.

(3) If the Contract is terminated under GC Section 11.2.5(1) or 11.2.5(2), then,

(a) the Operator shall immediately,

(i) cease all further work, except for such work as may be necessary for the purpose of protecting that part of the Site and New Facility already executed, or any work required to leave the Site in a clean and safe condition; and

(ii) terminate all Subcontracts; and

(b) the Operator, subject to the payment specified in GC Section 11.2.6, shall

(i) deliver to the Owner the parts of the New Facility executed by the Operator up to the date of termination; and

(ii) deliver to the Owner all Contract Records, including the Design-Build Documents, in existence as of the date of termination.

(4) Termination by the Operator pursuant to this GC Section 11.2.5 is without prejudice to any other rights or remedies of the Operator that may be exercised in lieu of or in addition to rights conferred by this GC Section 11.2.5.

11.2.6 Payment upon Termination by Operator

If the Contract is terminated under GC Sections 11.2.5(1) or 11.2.5(2), the Owner shall pay to the Operator all payments specified in GC Section 11.2.2(1), and reasonable compensation for all loss, except for loss of profit, or damage sustained by the Operator arising out of, in connection with or in consequence of such termination.

11.2.7 General Provisions - Termination

(1) In this GC Section 11.2, the expression “New Facility executed” shall include all work executed, Services provided, and all Plant and Equipment acquired, or subject to a legally binding obligation to purchase by the Operator and used or intended to be used for the purpose of the performing the Services, up to and including the date of termination.

Page 150: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 59 of 56

(2) In this GC Section 11.2, in calculating any monies due from the Owner to the Operator, account shall be taken of,

(a) any sum previously paid by the Owner to the Operator under the Contract, including any advance payment paid pursuant to the Terms and Procedures of Payment Appendix;

(b) any sum owing by the Operator to the Owner under the Contract, including Liquidated Damages – Delay or liquidated damages calculated pursuant to GC Section 5.4.

Page 151: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Appendix 1 Special Conditions of Contract

SPECIAL CONDITIONS OF CONTRACT APPENDIX 1 TO GENERAL CONDITIONS

FOR A CONTRACT TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK

INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER

(PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT

MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 152: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1

SPECIAL CONDITIONS OF CONTRACT

The following Special Conditions of Contract shall supplement the General Conditions. Whenever there

is a conflict, the provisions herein shall prevail over those in the General Conditions. The corresponding

article and section numbers of the General Conditions are indicated in parentheses.

1. Definitions (GC Section 1.1) Clause 1.1 of GCC Definitions: Add following definitions Operator: In the context of this contract “Operator” shall mean the contractor to whom the owner i.e. the Chief Executive officer, ShillongMunicipal Board, Shillong has awarded this Design, Build, Operate and Transfer the 115m3/day STP including post commissioning of O & M for 5 years contract. 2. Clause 1.3.1 – Language The language shall be “English” 3. Clause 1.3.10 – Joint Venture Consortium The Clause stands deleted and replaced by the following clause:

a. If the operator / contractor is a joint venture consortium of more than one person, the joint venture consortium partners hereby authorize the Lead Partner as named in the joint venture consortium agreement provided by the operator / contractor as a part of his bid to act on their behalf in exercising all rights and obligations towards the owner under this contract including receiving of approvals, consents, orders, certificates, instructions and payments from the owners, amendment of the contract and in all other matters under the contract including the settlement of disputes.

b. If the operator / contractor is a joint venture consortium of two or more persons, each member of

the joint venture consortium and their parent companies shall be jointly and severely responsible to the owner for the performance of this contract including fulfillment of all the obligations of the operator / contractor. Claims against the parent companies shall be governed by the prevailing law and procedure in India as may be applicable to this contract.

c. The composition, shareholding, control or constitution of the operator as an individual bidder or a

joint venture consortium as proposed in the operator’s bid shall not be altered without the prior consent of the owner.

d. The share holding pattern as set out in the joint venture consortium agreement signed and executed between the members of the joint venture consortium shall be maintained all throughout the period of contract and shall remain unchanged. Any change in the share holding pattern during the period of contract on exceptional ground shall be subject to owner’s prior consent.

Page 153: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

2

4. Clause 1.3.14 – Survival of Obligations Upon termination or expiration of the Contract, the following rights and obligations of the Parties survive:

(a) Such rights and obligations as may have accrued or to which the Parties may be entitled on the date of termination, and any rights which a Party may have under Applicable Law;

(b) On termination or expiration of the contract, the rights and obligations of the parties towards settlement of disputes through arbitration in the form of an arbitration clause / agreement.

(c) The Operator’s obligations with respect to Contract Records, accounting and auditing set out in GC Section 1.8;

(d) The Operator’s obligations with respect to Transition Assistance set out in GC Section 2.4.2;

(e) The Parties’ rights and obligations with respect to copyright set out in GC Section 6.1;

(f) The Operator’s obligations of confidentiality as set out in GC Section 6.2;

(g) The Parties’ rights and obligations with respect to defect liability set out in GC Section 9.1; and

(h) The Parties’ rights and obligations with respect to indemnification set out in GC Section 9.5

5. Clause 1.4 – Notice All notices to the relevant party shall be sent to the following address:

a. Contractor _________________________ _________________________ __________________________

b. Owner Chief Executive officer, Shillong Municipal Board, Bishop cotton road Shillong, Meghalaya, India - 793001 Phone No., +91-364-2224702; Fax No., +91-364-2224850 Email:, [email protected] ; Website: http://smb.gov.in

6. Clause 1.5 – Governing Law The Applicable Law will be the Laws of India as well as the laws prevailing in the State of Meghalaya, India. 7. Clause 1.6.1 (4) Adjudicator The Adjudicator is: [To be added at the time of signing of Contract] [Name, address, telephone and facsimile numbers]

Page 154: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

3

The adjudicator shall be paid a fee @ Rs. 5000/- per day of effective hearing plus actual expenditure towards travel, transportation, lodging, boarding. The fees and expenditure shall be shared equally by the operator and the owner. 8. Clause 1.6.1 (5) The authority to appoint new adjudicator will be the Chief Executive Officer, ShillongMunicipal Board, Shillong. 9. Clause 1.6.2 (3) All disputes arising in connection with this contract shall be finally settled under the arbitration rules of the United Nations Commission on International Trade Law (UNICITRAL) by one or more arbitrators appointed in accordance with the rules. However, if the contract is with the domestic contractor arbitration shall be conducted in accordance with the Arbitration & Conciliation Act 1996.

The place of arbitration shall be (i) the location from where the Contract has been issued if the contract is with a domestic Operator, or (ii) a neutral location if the contract is with a foreign Operator. The arbitration shall be conducted in the language for communications defined in GC Clause 1.3.1 [Language]. 10. Clause 2.1.1 of Article 2 The term “Joint Venture Company” shall be read as “Joint Venture Consortium”. 11. Clause 2.1.2 (a) The contract shall terminate on expiry of the 6 years period from the date of award i.e. one year for the construction period and 5 years after operations starting date. 12. Clause 2.3.2 The “Time for Completion” for the Design Build Services for the 12 months from the date of award of contract. 13. Clause 2.3.6 (1) The time for completion of the new facility will be 12 months from the date of award of contract. 14. Clause 2.3.6 (2) In case of delay attributable to the operator, the operator shall be liable to pay to the owner liquidated damages equivalent to 0.1% of the value of Design, Build, Finance and Commissioning services as contained in Price Schedule 1 per day of delay not exceeding 10% of the said value. 15. Clause 2.3.6 (5) The contract does not provide for bonus payment to the operator for early completion.

Page 155: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

4

16. Clause 2.3.7 The clause stands deleted. 17. Clause 3.6(4) The word “CSCU Director” stands deleted. 18. Clause 3.6(5) The word “CSCU Director” stands deleted. 19. Clause 4.2 Delete the existing clause and replace it with the following clause: The owner shall provide physical possession of approximately 0.3ha of land at the site of the proposed 115m3/day septage treatment plant and shall provide access thereto and all other areas reasonably required for the proper execution of the contract including all Rights of Way. The owner shall provide the operator free of charge full possession of the site for the new facility during the term of the contract. 20. Clause 4.3 The word “CSCU Director” stands deleted. 21. Clause 4.3.2 The word “CSCU Director” stands deleted. 22. Clause 4.3.3 The word “CSCU Director” stands deleted. 23. Clause 5.1(1) The contract price shall be as specified in the form of contract and the Price Schedule 1 as offered by the Operator and accepted by the Owner while awarding the contract. 24. Clause 5.1 (2) Delete the existing clause and replace it by the following clause: The contract price shall be paid by the owner to the operator as per Price Schedule 2 as accepted by the Owner and the Operator while awarding the contract. 25. Clause 5.2(3) No interest shall be paid by the owner towards delayed payments.

Page 156: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

5

26. Clause 5.3 The existing clause stands deleted. 27. Clause 5.4 Delete the existing clause and replace it by the following clause: In case if the operator fails to meet the technical standards more specifically towards the quality of the treated sewage, the operator shall pay to the owner liquidated damages amounting to Rs. 70,000/- per day of occurrence, over and above the costs and compensation that might be required by the owner to pay to the affected people and parties in the effluent discharge area. 28. Clause 5.5.1(2)(a) The performance security to be paid by the operator to the owner while signing the contract shall be equivalent to 10% of the total value of contract as contained in Part A + B of the Price Schedule 1. 29. Clause 5.5.1 (2)(c) The performance security shall be in the form of a demand draft issued by a Nationalized Bank in India or a fixed deposit issued by a Nationalized Bank in India which is pledged in the name of the owner or a Bank Guarantee issued by a Nationalized Bank valid for a period of 15 years from the date of award of contract. 30. Clause 5.6(2) As the prices under price schedule 1 are inclusive of all taxes and duties, any benefit in terms of deemed export benefit shall be passed on by the operator to the owner. Article 7: Contract administration and supervision during the Design-Build and Operations Periods

32. Clause 7.2 - Design-Build Supervision

Provisions in Clause 7.2 shall be replaced with the following clauses.

7.2.1 Supervision during the Design-Build Period

GC Section 7.2 shall apply during the Design-Build Period and Operations Period and immediately after the End date solely for the purpose of resolving transition issues and any outstanding issues arising during the Operations Period.

7.2.2 Design-Build-Operations Engineer’s Duties and Authority (Design-Build and Operations Period)

(1) The Owner shall appoint the Design-Build-Operations Engineer who shall be responsible for day to day contract management and supervision during the Design-Build Period and the Operations Period. The Design-Build-Operations Engineer’s staff shall include suitably qualified engineers and other professionals who are competent to carry out these duties.

Page 157: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

6

(2) The Design-Build-Operations Engineer shall have no authority to amend the Contract.

(3) Except, as specifically provided otherwise in the Contract, the Design-Build-Operations Engineer may exercise the authority attributable to the Design-Build-Operations Engineer as specified in or necessarily to be implied from the Contract. The Owner undertakes not to impose further constraints on the Design-Build-Operations Engineer’s authority, except as agreed with the Operator.

(4) The Design-Build-Operations Engineer is obligated to obtain the approval of the Owner for matters specified in the sub-clause 7.22 (5) (d) of the SCC. If the Design-Build-Operations Engineer exercises a specified authority for which the Owner’s approval is required then, for the purposes of the Contract, the Owner shall be deemed to have given approval.

(5) Except as otherwise stated in the Contract,

(a) if the Design-Build-Operations Engineer carries out duties or exercises authority, specified in or implied by the Contract, the Design-Build-Operations Engineer shall be deemed to act for the Owner;

(b) the Design-Build-Operations Engineer has no authority to relieve any Party of any duties, obligations or responsibilities under the Contract; and

(c) any approval, check, certificate, consent, examination, inspection, instruction, notice, proposal, request, test or similar act by the Design-Build-Operations Engineer, including absence of disapproval, shall not relieve the Operator from any responsibility it has under the Contract, including responsibility for errors, omissions, discrepancies and non-compliances.

(d) The Design Build Operations Engineer shall obtain the approval of the Owner before exercising its authority in the following circumstances:

(a) approving assignment of the Contract, or any part thereof; (b) determining an extension of the Time for Completion; (c) certifying additional costs determined under GCC 1.9(8)(b); and (d) issuing a Change Order, except:

a. in an emergency situation, as reasonably determined by the Design-Build-Operations Engineer; or

b. if such Change Order would increase the Contract Price by less than 1%.

7.2.3 Delegation by the Design-Build-Operations Engineer

(1) The Design-Build-Operations Engineer may from time to time assign duties and delegate authority to assistants, and may also revoke such assignment or delegation. These assistants may include a resident engineer, or independent inspectors appointed to inspect or test items of Plant or Equipment. The assignment, delegation or revocation shall be in writing and shall not take effect until copies have been received by both Parties. Unless otherwise agreed by both Parties, the Design-Build-Operations Engineer shall not delegate the authority to determine any matter in accordance with GC Section 7.2.6.

Page 158: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

7

(2) Assistants shall be suitably qualified persons, who are competent to carry out these duties and exercise this authority, and who are fluent in the language for communications defined in GC Section 1.3.1.

(3) Each assistant, to whom duties have been assigned or authority has been delegated, shall only be authorized to issue instructions to the Operator to the extent defined by the delegation. Any approval, check, certificate, consent, examination, inspection, instruction, notice, proposal, request, test, or similar act by an assistant, in accordance with the delegation, shall have the same effect as though the act had been an act of the Design-Build-Operations Engineer. However,

(a) any failure to disapprove any work or Plant and Equipment shall not constitute approval, and shall therefore not prejudice the right of the Design-Build-Operations Engineer to reject the work or the Plant and Equipment; and

(b) if the Operator questions any determination or instruction of an assistant, the Operator may refer the matter to the Design-Build-Operations Engineer, who shall promptly confirm, reverse or vary the determination or instruction.

7.2.4 Instructions of the Design-Build-Operations Engineer

(1) The Design-Build-Operations Engineer may issue to the Operator, at any time during the Design-Build Period, instructions which may be necessary for the execution of the Design-Build Services and the remedying of any defects, all in accordance with the Contract. The Operator shall only take instructions from the Design-Build-Operations Engineer, or from an assistant to whom the appropriate authority has been delegated under GC Section 7.2.3. If an instruction constitutes a Change, GC Section 10.1 shall apply.

(2) The Operator shall comply with the instructions given by the Design-Build-Operations Engineer or delegated assistant, on any matter related to the Contract. These instructions shall be given in writing.

7.2.5 Replacement of the Design-Build-Operations Engineer

If the Owner intends to replace the Design-Build-Operations Engineer, the Owner shall, not less than 42 days before the intended date of replacement, give notice to the Operator of the name, address and relevant experience of the intended replacement Design-Build-Operations Engineer. The Ownershall not replace the Design-Build-Operations Engineer with a person against whom the Operator raises reasonable objection by notice to the Owner, with supporting particulars.

7.2.6 Determinations by the Design-Build-Operations Engineer

(1) Whenever the Contract provides that the Design-Build-Operations Engineer shall proceed in accordance with this GC Section 7.2.6 to agree or determine any matter, the Design-Build-Operations Engineer shall consult with each Party in an endeavour to reach agreement. If agreement is not achieved, the Design-Build-Operations Engineer shall make a fair determination in accordance with the Contract, taking due regard of all relevant circumstances.

Page 159: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

8

(2) The Design-Build-Operations Engineer shall give notice to the Parties of each agreement or determination, with supporting particulars. Each Party shall give effect to each agreement or determination unless and until revised under GC Section 1.9.

33. Clause 7.3 Operations Supervision

This clause stands deleted Article 8: Representatives Staff and Sub-contracting

34. Clause 8.1.2 (1) Operator’s Representative

The Operator’s Representative is: ______________________

35. Clause 8.1 Existing Staff

The Operator is not obliged to retain staff employed by the Owner.

36. Clause 8.3 Operator’s Personnel

The Operator’s Key Staff employed during the design build services shall have the expertise and qualifications specified in the Table1

S.No

below.

Staff No Minimum Qualifications

1 Project

Manager 1

A Graduate in Civil Engineer with not less than 10 years’ experience in construction of Sewage Treatment Plants/ Sewerage Networks.

2 Civil

Engineer 1

A Civil Engineer (Graduate Engineer) with not less thaneightyears’ experience in construction of similar engineering works or Diploma in Civil Engineer with 10 years’ experience

3 Electro

Mechanical Engineer

1

A Electro /Mechanical Engineer (Graduate Engineer) with not less than 8 years’ experience in construction of similar engineering works or Diploma in Electro/ Mechanical Engineering with 10 years’ experience

4 Civil

Supervisors 2

Diploma in Civil Engineering with minimum 2 years’ experience in Construction of Civil Engineering works

5 Environmental Engineer

1

Degree in Environmental Science with minimum 5 years’ experience or Environmental Engineering with minimum 3 years’ experience in environmental management works for urban infrastructure projects.

37. Clause 8.6 (1) Maximum Percentage of Sub contracting

1EA should ensure that the requirements relating to the Key Staff given in the BDS under ITB 3.3 (e) 8 & 3.3 (e) 9

are identical with the SCC 8.1.

Page 160: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

9

Sub-contracting shall not exceed 25% percent. However, the nominated Sub-contractor whose experience and qualification have been claimed for meeting the qualification criteria in accordance with stipulations in annexure A part h shall be excluded while applying the ceiling of 25 %.

Article 9: Liability and Risk Distribution

38. Clause 9.1 Defect Liability Period

Clause 9.1 is hereby deleted. The Operator shall be responsible for the repair and maintenance of the STP and other facilities at his own cost during the O&M period of 5years as stipulated in Schedule 3 – Operation and Maintenance Services Schedule 32. Clause 7.3.2 The existing clause stands deleted. 33. Clause 7.3.3 The existing clause stands deleted. 34. Clause 7.3.4 The existing clause stands deleted. 35. Clause 7.3.5 The existing clause stands deleted. 36. Clause 7.3.6 The existing clause stands deleted. 37. Clause 8.1.1(1)(a) During the design, build period the owner’s representating as the Design Build Engineer will be the Project Design Management Consultants (PDMC) will be notified later. 38. Clause 8.1.1(1)(b) The owners on completion of the design build and commission period appoint owner’s representative. 39. Clause 8.1.1(2)(b) The provisions stands deleted. 40. Clause 8.1.1(4 & 5) The words CSCU Director stand deleted. 41. Clause 8.4 The words CSCU Director stands deleted.

Page 161: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

10

42. Clause 9.1 This clause on defect liability shall apply to this DBOT contract for a period of 12 months (1 year) from the date of completion, testing and commissioning of the 115m3/day STP.

43. Clause 9.3.2 The clause stands deleted

44. Clause 9.6 The existing clause stands deleted and replaced by the following clause:

9.6.1 General Requirements for Insurances

In this Clause, “insuring Party” means, for each type of insurance, the Party responsible for effecting and maintaining the insurance specified in the relevant Sub-Clause. Wherever the Contractor is the insuring Party, each insurance shall be effected with insurers and in terms approved by the Employer. These terms shall be consistent with any terms agreed by both Parties before the date of the Letter of Acceptance. This agreement of terms shall take precedence over the provisions of this Clause. Wherever the Employer is the insuring Party, each insurance shall be effected with insurers and in terms consistent with the details contained under this contract.If a policy is required to indemnify joint insured, the cover shall apply separately to each insured as though a separate policy had been issued for each of the joint insured. If a policy indemnifies additional joint insured, namely in addition to the insured specified in this Clause, (i) the Contractor shall act under the policy on behalf of these additional joint insured except that the Employer shall act for Employer’s Personnel, (ii) additional joint insured shall not be entitled to receive payments directly from the insurer or to have any other direct dealings with the insurer, and (iii) the insuring Party shall require all additional joint insured to comply with the conditions stipulated in the policy.

Each policy insuring against loss or damage shall provide for payments to be made in the currencies required to rectify the loss or damage. Payments received from insurers shall be used for the rectification of the loss or damage.

The relevant insuring Party shall, within the respective periods stated in the Contract Data (calculated from the Commencement Date), submit to the other Party:

(a) evidence that the insurances described in this Clause have been effected, and (b) copies of the policies for the insurances described in Sub-Clause 9.6.2

[Insurance for Works and Contractor’s Equipment ] and Sub-Clause 9.6.3 [Insurance against Injury to Persons and Damage to Property].

Page 162: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

11

When each premium is paid, the insuring Party shall submit evidence of payment to the other Party. Whenever evidence or policies are submitted, the insuring Party shall also give notice to the Engineer.

Each Party shall comply with the conditions stipulated in each of the insurance policies. The insuring Party shall keep the insurers informed of any relevant changes to the execution of the Works and ensure that insurance is maintained in accordance with this Clause.

Neither Party shall make any material alteration to the terms of any insurance without the prior approval of the other Party. If an insurer makes (or attempts to make) any alteration, the Party first notified by the insurer shall promptly give notice to the other Party. If the insuring Party fails to effect and keep in force any of the insurances it is required to effect and maintain under the Contract, or fails to provide satisfactory evidence and copies of policies in accordance with this Sub-Clause, the other Party may (at its option and without prejudice to any other right or remedy) effect insurance for the relevant coverage and pay the premiums due. The insuring Party shall pay the amount of these premiums to the other Party, and the Contract Price shall be adjusted accordingly.

Nothing in this Clause limits the obligations, liabilities or responsibilities of the Contractor or the Employer, under the other terms of the Contract or otherwise. Any amounts not insured or not recovered from the insurers shall be borne by the Contractor and/or the Employer in accordance with these obligations, liabilities or responsibilities. However, if the insuring Party fails to effect and keep in force an insurance which is available and which it is required to effect and maintain under the Contract, and the other Party neither approves the omission nor effects insurance for the coverage relevant to this default, any moneys which should have been recoverable under this insurance shall be paid by the insuring Party.

Payments by one Party to the other Party shall be subject to the provisions of GCC & SCC as contained in this contract as applicable. The Contractor shall be entitled to place all insurance relating to the Contract (including, but not limited to the insurance referred to Clause 9.6) with insurers from any eligible source country 9.6.2 Insurance for Works and Contractor’s Equipment The insuring Party shall insure the Works, Plant, Materials and Contractor’s Documents for not less than the full reinstatement cost including the costs of demolition, removal of debris and professional fees and profit. This insurance shall be effective from the date by which the evidence is to be submitted under sub-paragraph (a) of Sub-Clause 9.6.1 [General Requirements for Insurances], until the date of issue of the Taking-Over Certificate for the Works.

Page 163: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

12

The insuring Party shall maintain this insurance to provide cover until the date of issue of the Performance Certificate, for loss or damage for which the Contractor is liable arising from a cause occurring prior to the issue of the Taking-Over Certificate, and for loss or damage caused by the Contractor in the course of any other operations (including defect liability period).

The insuring Party shall insure the Contractor’s Equipment for not less than the full replacement value, including delivery to Site. For each item of Contractor’s Equipment, the insurance shall be effective while it is being transported to the Site and until it is no longer required as Contractor’s Equipment.

Unless otherwise stated in the Particular Conditions, insurances under this Sub-Clause: (a) shall be effected and maintained by the Contractor as insuring Party, (b) shall be in the joint names of the Parties, who shall be jointly entitled to receive payments from the insurers, payments being held or allocated between the Parties for the sole purpose of rectifying the loss or damage, (c) shall cover all loss and damage from any cause not listed in the GCC / SCC of this contract. (d) shall also cover loss or damage to a part of the Works which is attributable to the use or occupation by the Employer of another part of the Works, and loss or damage from the employer’s risks listed in the GCC / SCC excluding (in each case) risks which are not insurable at commercially reasonable terms, with deductibles per occurrence of not more than the amount stated in the Contract Data (if an amount is not so stated, this sub-paragraph (d) shall not apply), and (e) may however exclude loss of, damage to, and reinstatement of: (i) a part of the Works which is in a defective condition due to a defect in its design, materials or workmanship (but cover shall include any other parts which are lost or damaged as a direct result of this defective condition and not as described in sub-paragraph (ii) below), (ii) a part of the Works which is lost or damaged in order to reinstate any other part of the Works if this other part is in a defective condition due to a defect in its design, materials or workmanship, (iii) a part of the Works which has been taken over by the Employer, except to the extent that the Contractor is liable for the loss or damage, and (iv) Goods while they are not in the Country, subject to the provisions of GCC / SCC contained in this contract as applicable. If, more than one year after the Base Date, the cover described in sub-paragraph (d) above ceases to be available at commercially reasonable terms, the Contractor shall (as insuring Party) give notice to the Employer, with supporting particulars. The Employer shall then (i) be entitled subject to provisions of GCC / SCC contained in this contract as applicable. to payment of an amount equivalent to such commercially reasonable terms as the Contractor should have expected to have paid for such cover, and (ii) be deemed, unless he obtains the cover at commercially reasonable terms, to have approved the omission under Sub-Clause 9.6.1 [General Requirements for Insurances ].

Page 164: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

13

9.6.3 Insurance against Injury to Persons and Damage to Property The insuring Party shall insure against each Party’s liability for any loss, damage, death or bodily injury which may occur to any physical property (except things insured under Sub-Clause 9.6.2 [Insurance for Works and Contractor’s Equipment]) or to any person (except persons insured under Sub-Clause 9.6.4 [Insurance for Contractor’s Personnel ]), which may arise out of the Contractor’s performance of the Contract and occurring before the issue of the Performance Certificate.

The Insurance cover under this clause shall be as under and to be borne by the operator / contractor. � Loss of human life – Rs. TenLacs � Permanent Disability of human beings - Rs. FiveLacs. � Human Body Injury not resulting into permanent disability -Rs. ThreeLacs

Unless otherwise stated in the Particular Conditions, the insurances specified in this Sub-Clause: (a) shall be effected and maintained by the Contractor as insuring Party, (b) shall be in the joint names of the Parties, (c) shall be extended to cover liability for all loss and damage to the Employer’s property (except things insured under Sub-Clause 18.2) arising out of the Contractor’s performance of the Contract, and (d) may however exclude liability to the extent that it arises from:

(i) the Employer’s right to have the Permanent Works executed on, over, under, in or through any land, and to occupy this land for the Permanent Works, (ii) damage which is an unavoidable result of the Contractor’s obligations to execute the Works and remedy any defects, and (iii) a cause listed as Employer’s Risks as contained in GCC / SCC, except to the extent that cover is available at commercially reasonable terms.

9.6.4 Insurance for Contractor’s Personnel The Contractor shall effect and maintain insurance against liability for claims, damages, losses and expenses (including legal fees and expenses) arising from injury, sickness, disease or death of any person employed by the Contractor or any other of the Contractor’s Personnel.

The Employer and the Engineer shall also be indemnified under the policy of insurance, except that this insurance may exclude losses and claims to the extent that they arise from any act or neglect of the Employer or of the Employer’s Personnel.

Page 165: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

14

The insurance shall be maintained in full force and effect during the whole time that these personnel are assisting in the execution of the Works. For a Subcontractor’s employees, the insurance may be effected by the Subcontractor, but the Contractor shall be responsible for compliance with this Clause 45. Clause 9.10 Contract price adjustment is not applicable to this contract. 46. Clause 10.2(2) Delete the clause and replace it as under: The operator or the owner may request an adjustment to the Monthly Operations Payment if the quantity of sewage received at STP and outflow of the treated sewage changes. In the event of such a change in the incoming or outgoing volume of sewage at the STP, the operator or the owner as applicable shall be entitled to receive an increase or decrease equal to the actual increase or decrease in cost mutually agreed by the operator and the owner subject to condition that the change is beyond plus or minus 10%. The operator or the owner shall submit a request for an adjustment pursuant to this clause to the Engineering Consultant for the O & M period as appointed by the owner, for his examination and recommendation to the owner for a final decision in the matter.

Page 166: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 31

Appendix 2A

Design-Build Services Appendix

DESIGN-BUILD SERVICES APPENDIX 2A TO THE GENERAL CONDITIONS

FOR A CONTRACT TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK

INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115 M3/DAY AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING

TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION &

MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF

MEGHALAYA, INDIA

Page 167: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 31

ARTICLE 1 - GENERAL 0

1.1 Description of Design-Build Services ............................................................................... 0 1.2 Supplementing the General Conditions ............................................................................ 0

ARTICLE 2 - DESIGN SERVICES ............................................................................................... 0

2.1 General .............................................................................................................................. 0 2.1.1 Design and Engineering ............................................................................................. 0 The designs and drawings as formulated by the bidder shall be subject to approval by the owner or his authorized Project Design & Management Consultant (PDMC). Approval by the SMB / its PDMC shall not relieve the bidder / contractor from his responsibility of the desired output / performance of the STP. ................................................................................. 1 2.1.3 Design Responsibilities ............................................................................................. 1 2.1.4 Design-Build Documents ........................................................................................... 2 2.1.5 Design Considerations ............................................................................................... 3

2.2 Design Responsibilities – Off-Site Issues ......................................................................... 4 2.3 Design Responsibilities – On Site Issues .......................................................................... 4 2.4 Sewerage Treatment Plant Layout and operation sequence .............................................. 4 2.5 Designation of 115m3/day STP on Site Areas for Other Uses ....................................... 15 2.6 Surface and Ground Water Management ........................................................................ 16 2.7 Site Administrative Facility ............................................................................................ 16 2.8 Other Design Responsibilities ......................................................................................... 17

ARTICLE 3 - BUILDING AND CONSTRUCTION SERVICES ............................................... 17

3.1 General ............................................................................................................................ 17 3.2 Procurement and Transportation ..................................................................................... 17

3.2.2 Temporary Supports, Structures and Utility Services ............................................. 18 3.2.3 Document Review ................................................................................................... 18 3.2.4 Plant and Equipment ................................................................................................ 18 3.2.5 Documents at the Site .............................................................................................. 19 3.2.6 Use of the 115m3/day STP site ............................................................................... 19 3.2.7 Setting Out ............................................................................................................... 19 3.2.8 Quality Assurance .................................................................................................... 19 3.2.9 Bidder’s Access Routes and Rights of Way During the Design-Build Period ........ 19 3.2.10 Site Regulations and Safety ..................................................................................... 20 3.2.11 Bidder’s Equipment (Design-Build) and Site Clearance ......................................... 20 3.2.12 Protection of the Environment ................................................................................. 21 3.2.13 Security of the STP site ........................................................................................... 22 3.2.14 Physical Cultural Property ....................................................................................... 22 3.2.15 Emergency Work ..................................................................................................... 22 3.2.16 Work at Night and on Holidays ............................................................................... 23

ARTICLE 4 - TEST AND INSPECTION .................................................................................... 23

4.1 Tests and Inspection ........................................................................................................ 23

ARTICLE 5 - COMPLETION OF THE STP ............................................................................... 24

5.1 Monthly Progress Notice ................................................................................................ 24

Page 168: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 31

5.2 Completion ...................................................................................................................... 24

ARTICLE 6 - COMMISSIONING AND OPERATIONAL ACCEPTANCE .............................. 25

6.1 Commissioning ............................................................................................................... 25 6.2 Tests on Commissioning ................................................................................................. 25 6.3 Operational Acceptance .................................................................................................. 26

ARTICLE 7 - REPORTING DURING THE DESIGN-BUILD PERIOD .................................... 26

7.1 Design-Build Progress Reports ....................................................................................... 26 7.2 Replacement of Key Staff to be deployed by the Operator during the Design build period. ........................................................................................................................................ 27

Page 169: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 0 of 31

DESIGN-BUILD SERVICES APPENDIX AR T I C L E 1 - GENERAL

1.1 Description of Design-Build Services

The Bidder shall carry out and be responsible for the design and construction of the Septage Management in Shillong covering Shillong Municipal area. The work includes (i) design and build Septage waste treatment plant of capacity 115m3/day and all appurtenant structures and allied works complete including testing, Trial run for 3 Months and commissioning of the plant to the satisfaction of the Engineer (period of completion - 12 months); (ii) operation & maintenance of the complete works of septage waste treatment plant and allied works for a period of 5 years at Mawiong, Shillong, State of Meghalaya, India. The Bidder’s work and services as part of the “Design-Build Services” shall include,

(a) the design services in respect of the 115m3/day STP and all allied works all allied works including treatment process, hydraulic, structural, electrical, instrumentation, mechanical and piping Design, and all civil, mechanical, electrical and piping drawing including architectural & construction drawings and environmental assessment with necessary mitigation measures as set out in DBSA Article 2;

(b) the building and construction work and services in respect of the 115m3/day Capacity STP and all allied works as set out in DBSA Article 3;

(c) all work and services relating to the services set out in DBSA Sections 1.1(a) and (b) that may be,

(i) necessary or desirable for the design and construction of the STP and all allied works in accordance with and as contemplated by the Design-Build Documents and the Technical Standards for both design and operation; or

1.2 Supplementing the General Conditions

The provisions contained in this Design-Build Services Appendix are to be read in conjunction with the General Conditions of Contract and Special Conditions of contract as contained in this bid document for the purpose of providing greater specificity of the Design-Build Services that the Bidder shall perform.

AR T I C L E 2 - DESIGN SERVICES

2.1 General

2.1.1 Design and Engineering

(1) The Bidder shall execute the basic and detailed design of 115m3/day STP and its execution in compliance with the technical specifications and requirements contained in the contract, codes of practices as published by the Bureau of Indian Standard (BIS) or its equivalent standard as well as “Manual on Sewerage and Sewage Treatment” as

Page 170: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 31

published by the Central Public Health Engineering Organization (CPHEO) of the Ministry of Urban Development, Government of India, New Delhi. Wherever, the codes, standards and manual do not provide for the design and execution of some component i.e. required to be designed and executed, the bidder shall follow the standard engineering practices.

(1) The designs and drawings as formulated by the bidder shall be subject to approval by the owner or his authorized Project Development & Management Consultant (PDMC). Approval by the SMB / its PDMC shall not relieve the bidder / contractor from his responsibility of the desired output / performance of the STP.

(2) The Bidder shall be responsible for any discrepancies, errors or omissions in the specifications, drawings and other technical documents that it has prepared, whether such specifications, drawings and other documents have been approved by the Owner or not, provided that such discrepancies, errors or omissions are not because of inaccurate information furnished in writing to the Bidder by or on behalf of the Owner.

2.1.2 Codes and Standards

Wherever references are made in the Contract to codes and standards, including those codes and standards referred to in the Technical Standards Appendix, in accordance with which the Contract shall be executed, the edition or the revised version of such codes and standards current 30 days prior to the Submission Deadline shall apply unless otherwise specified. During Contract execution, any changes in such codes and standards shall be applied after approval by the Owner and shall be treated in accordance with GC Section 10.1.

2.1.3 Design Responsibilities

(1) The Bidder’s design and design-related services shall include:

(a) Site investigation and data collection including characterisation of septage waste, topographical survey, soil explanation and soil analysis for the design and construction of the structures required for the STP.

(b) Selection, adoption and detailed engineering designs for the most appropriate techno economically feasible cost effective treatment process technology for the treatment of the sewage ensuring that the treated sewage meets with the disposal standards prescribed by the Central Pollution Control Board (CPCB) and Meghalaya State Pollution Control Board (PCB) as may be applicable. These standards are prescribed in sub para (n) of Para 2.4 of this design build services appendix

(c) The acquisition of all data and information necessary to prepare the design and that are required to demonstrate that the 115 m3/day STP meets or exceeds the Technical Standards;

(d) the preparation of schematic design documents to illustrate the scale and character of the Design-Build Services and how the units of the process-adopted functionally relate to each other;

Page 171: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 31

(e) the preparation of design development documents, based on the HFD /schematic design documents accepted by the Owner, consisting of drawings and other documents appropriate to the size of the 115m3/day STP to describe the units and character of the entire proposed plant including architectural, mechanical, civil works, and electrical systems, materials, operations, landscaping, and such other elements as may be appropriate;

(f) the preparation of Design-Build Documents setting forth in detail the requirements for construction based on the design development documents accepted by the Owner;

(g) obtaining all approvals, permits, including building permits, and licences for the Design-Build Services, except for those approvals, permits or licences that the Owner is explicitly required to obtain itself under the Applicable Law in which case the Bidder shall prepare all documentation and provide assistance to the Owner in obtaining such approval, permits or licences;

(h) the preparation of assurances required to regulatory authorities respecting conformance of the design with the applicable building regulations, environmental standards and occupational health and safety requirements, including construction safety issues;

(i) the preparation of Changes as set out in GC Section 10.1;

(j) the coordination required to integrate all parts of the Design-Build Services;

(k) such other Design-Build Services that may be required from time to time that are agreed to by the Bidder and the Owner in writing; and

(l) the conducting of general reviews of the progress of the design process, to the extent necessary, in order to determine to the Bidder’s satisfaction that the design services are performed in compliance with the requirements of the Contract and Applicable Laws.

2.1.4 Design-Build Documents

(1) The Bidder shall prepare all of the Design-Build Documents. The Design-Build Documents shall include the plans, designs, drawings, as-built documents, operations manuals, specifications, schematic design documents, design development documents and models, and all modifications thereto required in order to properly and fully test for, analyse for, plan, design and build the STP and all allied works as contemplated in the Technical Standards and the remaining provisions of the Contract.

(2) The Bidder shall prepare any other document, as may be requested by the Design-Build Engineer, that the Owner considers necessary to monitor the progress of the Design-Build Services and assess the Bidder’s compliance with the Contract.

Page 172: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 31

(3) The Bidder shall provide each of the Owner with three sets of all of the Design-Build Documents in reproducible form and shall modify them to keep them up-to-date as requested by the owner acting in a professionally reasonable manner. The Design-Build Documents, with the exception of the as-built documents, shall be subject to the review and approval of the owner prior to performing any of the services set out in DBSA Article 3 in respect of any Design-Build Document.

(4) When the Bidder notifies the Owner in accordance with DBSA Section 6.2, the Bidder shall provide to the owner one copy of the as built Design-Build Documents in reproducible form showing the exact as built locations, sizes and details of the STP and the Design-Build Services as executed. The STP shall not be considered to have reached Completion for the purposes of DBSA Section 6.2 until such Design-Build Documents have been provided. The Bidder shall update the as-built Design-Build Documents as necessary for the correction of defects or deficiencies contemplated by DBSA Section 6.2.

2.1.5 Design Considerations

In preparing the design for the 115m3/day Capacity STP and all allied works and the Design-Build Documents, the Bidder shall,

(a) Protect public health and safety, including by the means set out in DBSA Section 3.3.9;

(b) maximize the protection of the environment and minimise any adverse environmental impacts caused by the construction of STP throughout the Service Area and Country, including as may be required, recommended or advisable pursuant to any technical standard or environmental assessments conducted on, at or near the STP site and by the means set out in DBSA Section 3.3.11;

(c) ensure the STP and all allied works has the capacity to accommodate the anticipated sewage based upon the verifications prepared by the Bidder pursuant to DBSA Section 2.1.5;

(d) ensure that the STP and all allied works are designed to meet the requirements of the Technical Standards Appendix including a detailed review of the following measures to deal with environmental mitigation:

(i) training materials to assist the Owner in the long-term monitoring of surface water, groundwater wells, emissions and treated effluent;

(ii) the impact to local property values and the mitigation of the impact of disposal of treated effluent and sludge;

(iii) the impact of construction and operations noise on the local community;

(iv) the monitoring of surface water and groundwater impacts of the plant including a baseline monitoring program; and

Page 173: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 31

(v) the air quality impact to the STP including the impact from gas, odour, dust and equipment emissions during construction and operations, odours during operation and gas exhaust any STP units in case of flaring.

2.2 Design Responsibilities – Off-Site Issues

In preparing the design for the 115m3/day STP and all allied works and the Design-Build Documents, the Bidder shall include as part of the design,

(a) Construct new approach road with connecting the main road lead to or will be used to access the Plant;

(b) design all internal access road inside the plant connecting all the units of STP; and

(c) plans and designs for the extension to the Site and Facility of all utility services required for all of the Services.

2.3 Design Responsibilities – On Site Issues

makes adequate preparation and plans and takes adequate measures for controlling access to the STP site by animals and humans and vehicular In preparing the design for the STP and the Design-Build Documents, the Bidder shall ensure that the design,

(a) traffic at the perimeter of the STP site, including plans for plantings and vegetation, fencing, lockable gates at vehicular access points, and the creation of an internal perimeter access corridor inside or, with appropriate local and other approvals, surrounding the Site;

(b) includes internal access roads at the STP site;

(c) provides utilities services at the STP site such as electricity, telephone, potable water, non-potable water and sewage collection and disposal; and

(d) provides areas for sludge Storage/disposal.

2.4 Sewerage Treatment Plant Layout and operation sequence

The Bidder shall be responsible for the planning and designing of the area of the Site for 115m3/day STP, including a design that,

(a) Construction of 115m3/day STP and all allied works with an approach road of a length of approximately 200 mts and then carry out STP Operation & Maintenance for 5 years by way of other services. Bidder shall verify these details as per site condition.

(b) Primary Treatment shall consist of inlet, screening and grit removal and flow measurement system as may be required.

Page 174: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 31

(c) Secondary treatment (Biological Treatment) as may be techno economically feasible and cost effective leading to the minimum effluent quality as prescribed by CPCB / MSPCB as may be applicable.

(d) The selected bidder / contractor shall have “Right to Sell” the treated sewage for reuse by the potential buyers for the purpose of agriculture / commercial / industrial use. The selected bidder / contractor shall be solely responsible to carry out market survey and research to access the potential for sale of the treated effluent and make all the administrative, financial and legal arrangements with the potential buyers. The selected bidder / contractor shall be free to up grade the treatment process beyond the secondary level of treatment at his own cost and risk and with minimum use of the land to be made available by the owner. The bidder in such a situation shall make his own arrangements for creating additional infrastructure that may be required for transmission and distribution of the treated sewage at his own cost and risk.

(d) On completion of the 5 years O & M period, the bidder shall have to handover the STP to the SMB in full working condition, as it was on the date of commissioning of the STP. The selected bidder, while handing over the STP to the owner shall dismantle the additional infrastructure, he has created for the sale of treated effluent to the entire satisfaction of owner. However, it will be open for the SMB to either extend the O & M period through mutually agreed terms and / or accept to retain the additional infrastructure that the selected bidder has created for the sale of the treated effluent.

(e) Sludge Handling System for Sewage Treatment Plant:

• The Sludge handling system shall consist of sludge thickening followed by aerobic/Anaerobic Sludge Digestion if required and Mechanical Sludge Dewatering.

(f) plans for the clearing and excavation of land, debris and other material at the STP area; Site clearance, site surveys, soil investigation, submission of process design and hydraulic design calculations, plant lay out and hydraulic flow diagram (Process & Instrumentation diagram), preparation & submission of detailed Environmental Impact Assessment report, preparation & submission of civil, architectural, General arrangement drawings & structural design of all civil works, electrical & mechanical equipment drawings including equipment installation drawings, supporting calculations & technical information, instrumentation & control system, construction of STP and all allied works of required capacity (115m3/day) including all necessary bypass arrangements, aeration & chlorination requirement, sludge disposal arrangements, as per approved designs, testing, commissioning, performance testing of process units & trial run for a period of three months.

(g) Also includes landscaping of plant area, internal roads with access to all units, illumination of the entire STP site, pathways, storm water drainage, compound wall all around & gates, administrative building including store house for tools and spares (covering a plinth area of 12 sqm), laboratory (covering an minimum area of 50 sqm) with water supply and waste water disposal arrangements, including geotechnical exploration, O&M manual and as-built drawings for all civil, electrical

Page 175: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 31

& mechanical works. All units shall be provided with draining arrangements with suitable valves/gates with chambers

(h) Supply and providing safety equipments namely gas mask, breathing apparatus, Air hose respirator, portable lighting equipment, non sparking lighting equipment, portable air blowers, safety belts, inhalators and diver suit at the commencement of O&M.

(i) Training the municipal staff for a period of six months during the trial run period & defect liability period

(j) Handing over of the Plant in good working condition with all relevant documents such as as-built drawings, physical & operational condition of the assets, rights on proprietary technologies, software, systems, O&M manual, periodical reports along with soft copy to Shillong Municipal Board.

(k) The offer shall be based on the Bidder’s design, build, finance, operate and transfer concept to be specified by the Bidder.

(l) Design shall be such that the plant requires minimum land foot print within the available land leaving area for future expansion of STP and also lesser energy and less manpower requirement with fully automization with SCADA system for its sustainable and efficient operation & maintenance.

(m) Proposed Treatment Scheme shall include but not be limited to the following

septage treatment facility where the septage is treated through mechanical dewatering and the filtrate through a biological treatment system. The standard flowchart of such processes, which include pre-treatment, dewatering the septage, and treating the filtrate through biological process for the treatment of the organics. is given below

Pre-treatment

Unit

Stirring Storage

tank

Sludge thickening

tank

Sludge Storage

tank Dehydration Separated

Liquid tank Activated Sludge

tank

Disinfection tank

Treated Water tank

Mechanical dewateting

Sludge Input Discharge

Polymer

Page 176: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 31

ii. Configuration of septage treatment facility

The septage treatment facility consists of pre-treatment, solid-liquid separation, biological (Secondary) treatment, and disinfection units. The dewatered and dried septage is used as a soil conditioner/fertilizer.

• Pre-treatment unit

This unit removes debris and sand and feeds the septage to the stirring storage tank, in which the septage is aerated and stirred for five or more days to make it uniform and to improve solid-liquid separation

• Solid-liquid separation unit Septage thickening tank

This tank settles the septage by means of gravity. The tank capacity shall be determined so that the retention time is about one day. If the inflow septage concentration is 1%, the tank is expected to double it – the concentration of outflow septage is 2%.

• Flocculation mixing tank

This tank forms flocs by adding a high-molecular or inorganic coagulant to the septage to facilitate solid-liquid separation.

Chemical injector

This injector, which consists of a chemical storage tank, dissolution tank, and injection pump, adds a given amount of coagulant to the flocculation mixing tank.

Solid-liquid separator

After the flocculation mixing tank, this unit (dehydrator) separates the septage into solid and liquid. The dehydrator is classified into centrifugal, belt press, and screw types.

Biological (secondary) treatment unit

This unit, which consists of all the units required for biological treatment, sedimentation tank, sludge returning unit, and air supplying unit, removes BOD-related contaminants from the separated liquid.

a. Typical design - Type design for septage collection of capacity 115m3/day

Treatment of septage/faecal sludge at independent septage treatment plants Septage treatment becomes the option to consider. Independent septage treatment plants are designed specifically for septage treatment and usually have separate unit processes to handle both the liquid and solid portions of septage. These include:

• Lime stabilization – odor control, conditioning and stabilization of the sludge. • Dewatering –mechanical dewatering. • aerobic wastewater treatment – liquid from the sludge drying beds and mechanical dewatering

systems. • Co-composting with organic solid waste

Page 177: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 31

However, the choice of an appropriate septage management system is dependent on land availability, local site conditions, level of treatment required, hauling distance, technical requirements, costing, requirement of expertise for construction and operation, availability of skilled labour, legal and regulatory requirements. The management option selected should be in conformity with local, state, and central regulations.

Pre-treatment of Septage & Lime stabilisation Pre-treatment/stabilization includes physical and or chemical treatment to decrease odours and ease in handling for further treatment Pre-treatment requires (Figure 2)

• Septage storage tank: To store and homogenize the collected septage

• Pumps: To pump the septage from storage tank to the screens

• Mechanical/manual screens: To remove large size particles, such as plastic, rag from the septage and protect downstream treatment facilities

• Grit channels or aerated grit chambers: To remove coarse sand and cinder from the septage to prevent abrasion of downstream mechanical equipment, such as pumps, etc. Aerated grit chambers can also help in reducing odour emissions from the septage

• Odour control system (optional): To eliminate or reduce odour through treatment either in biological or carbon adsorption system

In addition, lime stabilization is also practised to stabilize, control odour, vector and pathogen destruction. Lime stabilization involves adding and thoroughly mixing lime (alkali) with each load of septage to ensure that the pH is raised to at least 12. Lime addition could be done at any of these two points:

• In the hauler truck before or while the septage is pumped • In a septage storage tank where septage is discharged from the hauler truck

Receiving of Sewage Raw Septage will be discharged from septic tank cleaning vehicles. Receiving Chamber to be constructed in this contract and from where it will be taken for further treatment process. The function of the Receiving Chamber is to reduce the incoming velocity. Receiving Chamber shall be of adequate size to meet the requirements of workability inside it. The flow from the receiving chamber will lead to screen chamber. Septage storage tank

The Chamber/storage tank shall be constructed in RCC M 30 sulphate resistant concrete and as per IS 3370 whereas all other structures including the columns, platform and foundation shall be of RCC minimum M25 grade concrete, conforming to IS: 456. The minimum thickness of the screen chamber walls shall be 200 mm. The top surface, inside and outside faces and floor of the screen chamber shall be finished smooth with cement mortar 1:3, 20 mm thick, mixed with approved quality water proof compound in requisite proportion .

Page 178: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 31

Coarse Screening

There will be 2 (two) mechanical screens and 1 (one) manually operated standby screen in the screen channel. The coarse screens should be capable to screen out most of the medium & large floating and oversized material such as plastic rags, debris, weeds, paper, cloth, rags etc

Each screen channel shall be designed for peak flow. The minimum Approach Velocity through the screens at Average Flow shall be 0.6 m/sec while the maximum velocity at Peak Flow shall be 1.2 m/sec. The screens shall generally conform to IS:6280-1971.The mechanical bar screens shall be made 50 mm x 10 mm Stainless Steel (SS 316) flats (IS 6603-2001) with 20 mm clear space in between and arranged in inclined position at 60 degree to horizontal. 500 mm of minimum free board shall be provided in each channel.

The mechanical screens shall be provided with toothed rake and motor driven mechanism for operating the rake. The mechanism shall be mounted on a platform of suitable height. Timer operated aluminum gates shall be provided at the upstream and down stream ends of each channel to regulate the flow. The screen Channels shall be provided with PVC encapsulated foot rests. The conveyor belt and chute shall be provided to take the screenings out side by means of MS trolleys with rubber tyres of suitable capacity.

The contractor shall find a suitable place for the disposal of the screenings. Minimum 1000 mm wide RCC Platforms shall be provided at the upper level to enable operation of the screens. Hand railings of 50 mm dia mild steel pipe 1.0 m high shall be provided around the entire periphery of the channels including the platform. RCC staircase 900 mm wide with similar hand railing shall be provided for access from the ground level to the top of the unit and to the operating platforms.

The channels shall be constructed in RCC M 30 sulphate resistant concrete and as per IS 3370 whereas all other structures including the columns, platform and foundation shall be of RCC minimum M25 grade concrete, conforming to IS: 456. The minimum thickness of the screen chamber walls shall be 200 mm. The top surface, inside and outside faces and floor of the screen chamber shall be finished smooth with cement mortar 1:3, 20 mm thick, mixed with approved quality water proof compound in requisite proportion.

Fine Screening

Fine screen channels to be provided up stream of Grit removal system. Similar

to the coarse screen channels there will be 2 (two) mechanical fine screens and 1 (one) manually operated standby fine screen in the screen channels. The fine screens should

Page 179: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 31

be capable to screen out most of the medium & fine floating and material such as hair, debris, weeds, paper, rags etc.

Each screen channel shall be designed for peak flow. The minimum Approach Velocity through the screens at average flow shall be 0.3 m/sec while the maximum velocity at Peak Flow shall be 1.2 m/sec. The screens shall generally conform to IS: 6280-1971. The clear opening in two numbers working mechanical screens shall be 6 mm while the same for manual standby screen shall be 10 mm.

The mechanical and manual bar screens shall be made of 3 mm thick Stainless Steel (SS 316) flats (IS 6603-2001) and arranged in angle of inclination of 450 to horizontal. 500 mm of minimum free board shall be provided in each channel.

The mechanical screens shall be provided with toothed rake and motor driven mechanism for operating the rake. The mechanism shall be mounted on a platform of suitable height. Timer operated aluminum gates shall be provided at the upstream and down stream ends of each channel to regulate the flow. The screen Channels shall be provided with PVC encapsulated foot rests Conveyor Belt and chute shall be provided to take the screenings out side by containers (to be supplied by contractor) of suitable capacity. The contractor shall find a suitable place for the disposal of the screenings.

Minimum 1000 mm wide RCC Platforms shall be provided at the upper level

to enable operation of the screens. Hand railings of 50 mm dia mild steel pipe 1.0 m high shall be provided around the entire periphery of the channels including the platform. RCC staircase 900 mm wide with similar hand railing shall be provided for access from the ground level to the top of the unit and to the operating platforms. The channels shall be constructed in RCC M-30 sulphate resistant concrete and as per IS 3370 whereas all other structures including the columns, platform and foundation shall be of RCC minimum M-25 grade concrete, conforming to IS:456. The minimum thickness of the screen chamber walls shall be 200 mm. The top surface, inside and outside faces and floor of the screen chamber shall be finished smooth with cement mortar 1:3, 20 mm thick, mixed with approved quality water proof compound in requisite proportion.

Grit Chamber (De-gritting units)

The flow from fine screen chambers shall be allowed into the grit chambers for

removal of grit / inorganic matter by means of a RCC transition channel designed in accordance with IS: 3370. There will be two mechanical grit chambers complete with clarifier, both working for the designed flow capable of removing grit of particle size 0.15 mm and above, and specific gravity of 2.65. The chambers shall be designed for surface loading rate as applicable for a detention time of 60 sec. The grit chamber shall

Page 180: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 31

be a either square shaped, with circular haunches at corners (to avoid silting at corners), or otherwise a circular detritus tank with a free board of 300 mm each designed for average flow of 115m3/day with a peak factor of 2.25. The grit chamber shall have the following features:

One tapered inlet channel running along one side with deflectors for entry of sewage into the grit chamber. The minimum SWD of the units shall be adopted on the basis of design requirement of the unit.

One tapered outlet channel for collecting the de-gritted sewage, which overflow over a weir into the outlet channel. Outlet channel shall be of adequate size to ensure that no settling takes place.

One sloping grit classifier channel into which the collected grit will be classified. The grit from classifier will be collected in a wheeled trolley (to be supplied by the contractor) of approx. 1.5 m3 capacity. This trolley will be housed in a roofed enclosure with proper access.

Grit washing arrangement and drain. Grit scraping mechanism. Adjustable influent deflector. Reciprocating rake mechanism to remove the grit. Two-mechanism support beams with railing & chequered plates over half

diameter of the chamber. Organic matter return pump

The grit chamber shall be of RCC, constructed in RCC M-30 sulphate resistant concrete

and as per IS 3370. The internal surfaces of the grit channels shall be finished smooth with cement plaster of 1:3, 20 mm thickness, with an admixture of approved quality water proofing compound. The other surfaces of concrete shall be of form work finish with smooth rendering as per specifications. MS rectangular weir shall be provided at entry and exit at grit channel.

Aluminum gates shall be provided at the entrance and at the outlet of the chamber. To

enable easy operation of the gates, RCC platforms of 1200 mm wide with Gl hand railing shall be provided at the upper level. An access is to provided from this level to the mechanism support beam of the grit chamber. RCC staircase 900 mm wide shall be provided for access from the ground level to the top of the unit & to the operating platforms. The RCC structures other than the grit channels shall be constructed in M25 grade concrete conforming to IS.

Flow Measurement

A Flow measurement unit in the form of ultrasonic flow transmitter shall be provided in

the common header of the raw sewage pumps.

Page 181: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 31

Division Box

The 115m3/day flow shall be equally divided using adjustable aluminum overflow weir

plates and distributed to Secondary treatment Process units via pipe/channel. Sluice gates including all specials shall be provided on all weirs for isolation. RCC access platform, staircase, railing and covers over division boxes shall be provided as per requirement.

Secondary Treatment Process.

Screened, de-gritted sewage shall be fed into the Secondary Biological Treatment system

or units to meet the treated effluent quality prescribed. All the secondary biological units shall be constructed using RCC M-30 sulphate resistant concrete and as per IS 3370.

Chlorination System

The Treated Sewage from the Secondary treatment units will be collected in a chlorination tank where chlorine will be added for disinfection at suitable dosing rate with necessary mixing arrangements. The treated sewage is to be disposed into the water stream by suitable outfall arrangements.

Sludge Handing System

The sludge from the Treatment Plant shall be collected in a sludge sump where it is to be

aerated continuously for mixing. The aerated sludge shall be treated through mechanical dewatering system with required aeration and polymer dosing before de watering. Safe disposal of sludge can be proposed by any one of the processes namely thickening, digestion, aeration and de watering. The sludge cake shall be transported to the municipal landfill site in a safe manner. The centrate shall be re circulated into the inlet of the receiving chamber.

Outlet Channel

Treated sewage after chlorine contact tank shall be taken to the river through RCC

Channel /Pipe. The length of the channel/pipe shall be as per site condition. Capacity of the channel/pipe should be such that it can carry peak flow. The channel shall be constructed in RCC M 25 grade concrete with sulphate resistant cement and as per IS 3370 /RCC NP3 pipe per IS: 458. as treated effluent discharge measuring device. The unit shall be designed for the peak flow.

A suitable flow meter preferably electromagnetic shall be provided for measuring the flow through open channel. It shall comprise of a set of reading instrument including an indicator, integrator and recorder. The range of measurement shall be 0 to 200 MLD. The Parshall flume shall be of RCC, constructed in M25 grade concrete mix, conforming to IS: 3370. The internal surfaces of the parshall flume shall be finished smooth with cement plaster of 1:3, 20 mm

Page 182: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 13 of 31

thickness, with an admixture of approved quality water proofing compound. The other surfaces of concrete shall be of form work finish with smooth rendering.

Others All other units/equipments required for plant functioning including aerators, sludge

handling equipments including sump/pumps, disinfection & dosing units, all interconnecting pipes lines, valves, gates, chambers, etc shall be provided by the Bidder which forms integral part required for successful commissioning and operation of the Plant.

Design criteria: The process considered shall be one among the best technologies for treatment of

sewage. The Bidder shall to adopt the same nomenclature used for various treatment units in their design report as used in the Design-Build documents.

The STP shall be designed for 115m3/day capacity. The land provided shall for augmenting the capacity to the ultimate flow. The General Arrangement Drawing (GAD) of STP units, both for intermediate stage flow of 115m3/day; supported by hydraulic sizing calculation, and showing the arrangements of roads, drains and green belt all around and administrative blocks/laboratories/ other utilities and staff quarter buildings. The unit arrangements shall be optimized as much as possible. However the detailed design shall be furnished for only 115m3/day.

To the extent possible, the plant must be designed so that it can be easily augmented when the plant reaches its designed capacity.

The process design of various units shall be done as per the norms prescribed in the CPHEEO Sewerage Manual (Latest Edition) and with the following criteria set out in Table: 1 for guidelines. Any other specific criteria required for designing the units for the technology proposed by the Bidder shall be based on approved manual which shall be get approved by the Employer or to adopt such criteria by providing due justification.

Table: 1 S.No

Unit

Design parameter

1 Receiving Chamber Average Flow- 115 m3/day. Peak Factor-2.25

Detention Time-60 secs. 2 Coarse screen Average flow –115m3/day No. of units-2

Nos.(Mechanical-1 No, Manual-1 No) Approach velocity at Avg flow – 0.3m/sec Velocity through screen at average flow- 0.6m/sec Velocity through screen at Peak flow- 1.2 m/sec

3 Fine Screen Average flow –115m3/day. No. of units-2 Nos.(Mechanical-1 No, Manual-1 No) Approach velocity at Avg flow – 0.3m/sec Velocity through screen at average flow- 0.6m/sec Velocity through screen at Peak flow- 1.2 m/sec

4 De gritting Average flow –115m3/day. No. of units-2 Nos.(Working-1 No, Stand by-1 No). Suitable surface overflow rate as per requirement for average and peak

Page 183: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 14 of 31

flow condition as per CPHEEO sewage manual. Velocity –0.15m to 0.30m/sec Detention time-60sec.

5 Primary Clarifier- Centrally driven if required.

Average flow –115m3/day Peak factor –2.25 Suitable surface overflow rate as per requirement for average and peak flow condition as per CPHEEO sewage manual.

6 Aeration

Average flow –115m3/day, Peak factor –2.25 MLSS-3000-4000 mg/lit , MLVSS/MLSS –0.80 F/M=0.3-0.5 kg BOD 5day/ Kg MLSS/day HRT- 4-5 Hours. Kg of O2 required/Kg of BOD removed-0.8 to 1.0. Return Sludge-25-50%

7 Secondary Clarifier ( if required)

Average flow –115m3/day Peak factor –2.25 Suitable surface overflow rate as per requirement for average and peak flow condition as per CPHEEO sewage manual.

8 Sludge Handling Units

The sludge handling units have to be designed by the contractor as per standard code of practice

9 Chlorine contact Tank

Dosage-3 ppm Contact time- 20 minutes Average flow-115m3/day

10 Other Biological Secondary Treatment system

Bidder to specify as (n) per design based on standard

specification and as per CPHEEO manuals or other approved manuals

11 Free Board requirement for each units

The minimum free board for all the STP unit shall be around 500mm

12 Mixing tank design Retention time of the tank in days (T) 5 days

13 Septage thickening tank design

Septage thickening time in hrs (T) -24hrs

14 Septage storage tank Retention time of the tank in days (T) 1 day

15 Septage hydrator Septage hydration time [T]: 5 days a week and 6 hours a day

Page 184: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 15 of 31

(o) Raw Sewage Quality

Tentative abstract o`f Raw Sewage Characteristics is indicated in the following Table-2:

Table: 2 S.No Parameters Range Unit

1 Biochemical Oxygen Demand

6000 mg/l

2 Chemical Oxygen Demand 30000 mg/l 3 Total Suspended Solids 12000 mg/l 4 Total Kjeldahl Nitrogen (as

N) 500 mg/l

5 Total Phosphorus (as PO4) 210 mg/l 6 Fecal Coliform 106 Nos./100ml 7 Total Coliform 107 Nos./100ml 8 pH 5.0 to 12 9 Oil & Grease 5600 mg/l

(Note: However the Bidder are requested to test the sewage for its parameters to be considered for design consideration on their own )

(p) Expected Treated Effluent Quality

The Bidder shall design the process in such a way that the treated effluent quality attains minimum standards prescribed by CPCB / MSPCB or even better as preferred.

S.No Parameters Unit As per CPCB/GPCB

norms

Preferred Norms

1 Biochemical Oxygen Demand

mg/l < 30mg/l < 10 mg/l

2 Chemical Oxygen Demand mg/l <200 mg/l < 50 mg/l 3 Total Suspended Solids mg/l < 20 mg/l < 10 mg/l 4 Total Nitrogen mg/l < 45 mg/l < 10 mg/l 5 Ammonium Nitrogen (NH3) mg/l < 2 mg/l < 2 mg/l 6 Total Phosphorus (as PO4) mg/l < 5 mg/l < 2 mg/l 7 Fecal Coliform Nos./100ml 500 MPN/100

ml 100 MPN/100 ml

8 pH 6.5 -8 6.5 -8 9 Oil & Grease mg/l < 10 mg/l < 5 mg/l

The treated sewage parameters shall comply with the values given the bid or as prescribed by Central Pollution control board with any latest ammendments 2.5 Designation of 115m3/day STP on Site Areas for Other Uses

In preparing the design and layout for the STP, the Bidder shall designate areas of the STP site for use in,

Page 185: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 16 of 31

(a) Sewage Treatment Units; including collection and storage chamber, equalisation tanks, coarse and fine screens, pumping station for lifting the septage, Pretreatment of septage waste, hydration, pretreatment of septage, solid liquid separation units, secondary treatment of liquid, including all civil, mechanical, electrical and instrumentation of the treatment units.

(b) Sludge handling facilities; sludge thickener, mechanical dewatering, sludge storage etc

(c) Ancillary works;

(d) Site administration, office building and Lab building;

(e) Internal roads and pathways connecting the various units

(f) perimeter buffer zones;

(g) Public toilets etc.;

2.6 Surface and Ground Water Management

In preparing the design for the STP and all allied works and the Design-Build Documents, the Bidder shall,

(a) plan and design the surface drainage at the Site of STP with adequate water drainage channels, pipes, sewers, structures and appurtenances, including for higher, adequate to manage the highest seasonal levels and volumes of storm water; and

(b) plan and design the STP site with adequate protection from flooding whether from rain, groundwater, high rivers, storms or any other source.

2.7 Site Administrative Facility

The Bidder shall be responsible for the administration of the STP and all allied works during the Design-Build Period and the Bidder shall design,

(a) temporary office facilities for use by the Bidder and its Subcontractors in the administration and execution of the Design-Build Services;

(b) New Facility for use in the administration of the Operations Services to accommodate personnel, furniture, utility services, a lunch room, washrooms and public toilets;

(c) appropriate signage for the Site and the STP , including signs that,

(i) identify the STP and its units;

(ii) provide warning and hazard notification in designated areas where warranted; and

Page 186: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 17 of 31

(iii) identify areas of the STP that are restricted to visitors and are accessible to only designated employees of the Bidder;

(d) the landscaping for the Facility as contemplated by the Design-Build Documents;

2.8 Other Design Responsibilities

The Bidder shall carry out the following design or design-related responsibilities:

(a) the bidder shall prepare plans and designs for all temporary works as required by the bidder’s design and as required by the Contract

(b) the bidders shall prepare plans and designs for landscaping of the site;

(c) the bidder shall prepare plans and designs for the acquisition of all data and information necessary to prepare the design, including, but not limited to, any intrusive site investigations, off-site surveys and environmental baseline monitoring required or contemplated under the Contract; and

(d) the bidder shall prepare detailed plans and methodologies for the testing and inspection of the Plant and Equipment.

AR T I C L E 3 - BUILDING AND CONSTRUCTION SERVICES

3.1 General

(1) The bidder shall carry out all building and construction of all units of STP designed pursuant to DBSA Articles 1 and 2

(2) The bidder shall provide all of the demolition, excavation, building, co-ordination, repair, warranty, review, inspection, testing, quality assurance and control, monitoring, scheduling, clean-up etc for Construction of the Plant as contemplated by Design-Build Documents.

(3) The bidder shall have total control of the building and construction services and shall effectively direct and supervise the building and construction services so as to ensure conformity with the Design-Build Documents.

(4) The bidder shall be solely responsible for construction means, methods, techniques, sequences, and procedures and for co-ordinating the various parts of the Design-Build Services under the Contract..

3.2 Procurement and Transportation

(1) Subject to GC Section 3.4, the bidder shall procure and transport all the equipment in an expeditious and orderly manner to the Site.

(2) The bidders shall at its own risk and expense for transport all equipments, to the site.

Page 187: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 18 of 31

(3) The bidder shall be responsible for obtaining, if necessary, approvals from the authorities for transportation of Equipment, to the Site. The bidder shall indemnify and hold harmless the Owner from and against any claim for damage to roads, bridges or any other traffic facilities that may be caused by the transport of the to the Site.

(4) The bidder shall, at its own expense, handle all imported Equipment, at the point(s) of import and shall handle any formalities for customs clearance. If the Applicable Law requires any application or act to be made by or in the name of the Owner, the Owner shall take all necessary steps to comply with such Applicable Law. In the event of delays in customs clearance that are not the fault of the bidder, the bidder shall be entitled to an extension in the Time for Completion, pursuant to GC Section 2.3.4.

.

Building Responsibilities

3.2.2 Temporary Supports, Structures and Utility Services

(1) The bidder shall have the sole responsibility for the design, erection, operation, maintenance, and removal of temporary supports, structures and utility services and the design and execution of construction methods required in their use.

(2) The bidder shall engage and pay for registered professional engineering personnel skilled in the appropriate disciplines to perform those functions referred to in DBSA Section 3.3.1(1) where required by law or by the Design-Build Documents and in all cases where such temporary supports, structures and utility services and their designs and method of construction are of such a nature that professional engineering skill is required to produce safe and satisfactory results

3.2.3 Document Review

The Bidder shall review the Design-Build Documents and shall report promptly to the Owner any error, inconsistency or omission the Bidder may discover. If the Bidder does discover any error, inconsistency or omission in the Design-Build Documents, the Bidder shall not proceed with the work affected until the Bidder has corrected any such errors or inconsistency or supplied any missing information and these corrections have been approved in writing by the Owner.

3.2.4 Plant and Equipment

(1) The Bidder shall provide and pay for labour, Plant and Equipment, tools, construction machinery and equipment, materials and supplies, water, heat, light, power, transportation, and all other facilities and services necessary for the performance of the Design-Build Services in accordance with the Design-Build Documents.

(2) The Bidder shall ensure that all Plant and Equipment provided are new. Plant and Equipment which are not specified shall be of a quality consistent with those specified and their use shall be acceptable to the Owner.

Page 188: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 19 of 31

3.2.5 Documents at the Site

The Bidder shall keep one copy of the Design-Build Documents as up-dated, submittals, reports and records of meetings at the Site, in good order and shall make them available to the Owner upon request and at any reasonable time.

3.2.6 Use of the 115m3/day STP site

(1) The Bidder shall confine construction machinery and equipment, storage of Plant and Equipment, Bidder’s Equipment (Design-Build) and Bidder’s Equipment (Operations), and operations of Bidder’s Personnel to limits indicated by laws, ordinances, permits or the Design-Build Documents and shall not unreasonably encumber the Site with Plant and Equipment, Bidder’s Equipment (Design-Build) or Bidder’s Equipment (Operations). .

(2) The Bidder shall not store Plant and Equipment, Bidder’s Equipment (Design-Build) or Bidder’s Equipment (Operations) at the Site which are not necessary for the construction of the STP.

3.2.7 Setting Out

(1) The Bidder shall be responsible for the true and proper setting-out of the Site and the STP in relation to benchmarks, reference marks and lines specified in the Design-Build Documents.

(2) If, at any time during the construction of the Plant, any error shall appear in the position, level or alignment of the plant, the Bidder shall forthwith notify the Owner of such error and, at its own expense, immediately rectify such error to the reasonable satisfaction of the Owner.

3.2.8 Quality Assurance

(1) The Bidder shall institute a quality assurance system to ensure compliance with the requirements of the Design-Build Documents. Compliance with the quality assurance system shall not relieve the Bidder of its duties, obligations or responsibilities.

(2) The Bidder shall submit for approval details of all quality assurance procedures and documents relating to Bidder’s compliance with the quality assurance system to the Owner before each stage of the Design-Build Services is commenced as set out in the Time Schedule. When any document is issued to the Owner, it shall be accompanied by the signed quality statements for such document, if any. The Owner may audit any aspect of the quality assurance system and the Bidder shall take any corrective action as the Owner may deem appropriate.

3.2.9 Bidder’s Access Routes and Rights of Way During the Design-Build Period

(1) The bidder shall satisfy itself as to the suitability and availability of the access routes it chooses to use during the Design-Build Period for access to and from the Site. He shall, as between the Parties, be responsible for the maintenance of access routes during the Design-Build Period. The Owner will not be responsible for any claims which may arise from the use or otherwise of any access route. The Owner does not guarantee the suitability or availability of any particular access route, and will not entertain any claim for any non-suitability or non-availability for continuous use, during the Design-Build Period, of any such route.

Page 189: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 20 of 31

(2) The bidder shall bear all costs and charges for special or temporary rights-of-way required by it for access to the Site. The bidder shall also provide, at its own cost, any additional facilities outside the Site if required by it for the purposes of the Design-Build Services.

3.2.10 Site Regulations and Safety

(1) The bidder shall establish Site regulations setting out the rules to be observed in the execution of the Contract at the Site and shall comply therewith. He shall prepare and submit to the Owner, proposed Site regulations for the Owner’s approval, which approval shall not be unreasonably withheld. Such Site regulations shall include rules in respect of security, safety of Plant, gate control, sanitation, medical care, emergency preparedness, emergency response, on-site safety training of employees and fire prevention..

(2) The bidder shall comply with all applicable safety regulations in providing the Design-Build Services and in occupying any part of the Site,. Unless otherwise stated in the Design-Build Documents, the bidder shall, during the Design-Build Period,

(a) provide secure fencing, lighting, guarding and watching;

(b) provide temporary roadways, footways, guards and fences which may be necessary for the accommodation and protection of its employees, Site visitors, owners and occupiers of adjacent land, the public and others;

(c) carry out safety briefings of applicable site regulations to all employees, Subcontractors, agents, representatives and visitors to the Site prior to permitting first access of the applicable person to the and at regular intervals thereafter.

(3) During the Design-Build Period, the Bidder shall develop and implement a comprehensive occupational health and safety program for the protection of the Bidder’s Personnel and all other persons who may attend at the STP site. The program shall include a description of how the Bidder will,

(a) carry out all occupational health and safety responsibilities in respect of the STP site as required under the Applicable Law;

(b) develop and manage all required occupational health and safety reporting procedures; and

(c) manage all occupational health and safety claims.

3.2.11 Bidder’s Equipment (Design-Build) and Site Clearance

(1) All Bidder’s Equipment (Design-Build) brought by the Bidder onto the Site shall be deemed to be intended to be used exclusively for the execution of the Contract. The Bidder shall not remove the same from the Site without the Owner’s consent that such Bidder’s Equipment (Design-Build) is no longer required for the execution of the Contract.

(2) The Bidder shall maintain the STP site in a tidy condition and free from the accumulation of waste products and debris. The Bidder shall remove waste products and debris resulting from the Site and shall leave the Facility clean and suitable for occupancy and

Page 190: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 21 of 31

performance of the Operations Services before attainment of Substantial Completion. The Bidder shall remove products, tools, construction machinery, and equipment, including the Bidder’s Equipment (Design-Build), not required for the performance of the remaining Design-Build Services.

(3) Prior to notifying the Owner pursuant to DBSA 6.2(1), the Bidder shall remove products, tools, construction machinery and equipment, and waste products and debris, including the Bidder’s Equipment (Design-Build).

(4) Upon the issue of any Completion Certificate, the Bidder shall clear away and remove, from the STP site, all Bidder’s Equipment (Design-Build), surplus material, wreckage, rubbish and temporary work or structures. The Bidder shall ensure that the STP site is in a clean and safe condition to the satisfaction of the Owner.

(5) If the Bidder fails to remove, no later than 30 days after the issue of the Completion Certificate, any remaining Bidder’s Equipment (Design-Build), surplus material, wreckage, rubbish and temporary work or structures, the Owner may sell or otherwise dispose of such items. The Owner shall be entitled to retain, from the proceeds of such sale, a sum sufficient to meet the costs incurred in connection with the sale or disposal, and in restoring the STP site. Any balance of the proceeds shall be paid to the Bidder. If the proceeds of the sale are insufficient to meet the Owner’s costs, the outstanding balance shall be recoverable from the Bidder by the Owner.

(6) The Owner will, if requested, use reasonable efforts to assist the Bidder in obtaining any local, state or national government permission required by the Bidder for the export of the Bidder’s Equipment (Design-Build) imported by the Bidder solely for use in the execution of the Contract that is no longer required for the execution of the Contract.

3.2.12 Protection of the Environment

(1) The Bidder shall take all reasonable steps to protect the environment, both on and off the Site, and to limit damage and nuisance to people and property resulting from pollution, noise, dust and other results of its Services, including,

(a) adopting working practices that prevent or minimize the transfer of any pollutant off-site;

(b) maintaining the access roads in good repair;

(c) using appropriate dust suppressant methods;

(d) restricting trucking and loud machinery and equipment use to daylight hours;

(e) using mufflers, silencers and other appropriate methods to minimize the noise of the construction;

(f) maintaining a clean STP site, that are free of garbage.

(2) The Bidder shall, at all times during building and construction, ensure that the Environmental Management Plan is followed.

Page 191: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 22 of 31

(3) The Bidder shall monitor groundwater quality upstream and downstream of the Facility, throughout the process of construction.

(4) The Bidder shall monitor water quality upstream and downstream of the 115m3/day STP site, prior to and throughout the process of construction.

3.2.13 Security of the STP site

Unless otherwise stated in the Design-Build Documents:

(a) the Bidder shall be responsible for keeping unauthorised persons off the Site from STP ,

(b) the Bidder shall maintain detailed record of all persons that enter the STP site; and

(c) the Bidder shall ensure that authorised persons shall be limited to the Bidder’s Personnel, the Design-Build Engineer, employees of Subcontractors and persons authorised by the Owner.

3.2.14 Physical Cultural Property

(1) The Bidder shall take reasonable precautions to prevent its employees, agents, representatives, Subcontractors, or other persons from removing or damaging any fossils, coins, articles of antiquity, and structures and other remains or things of geological or archaeological interest at the Site. The Bidder shall, immediately upon discovery of such article or thing, advise the owner, who may issue instructions for dealing with it. All fossils, coins, articles of value or antiquity, and structures and other remains or things of geological or archaeological interest discovered on the Site shall be the property of the Owner.

(2) If the Bidder suffers delay or incurs any damages or costs in following any instructions of the Owner pursuant to DBSA Section 3.3.13(1), and if such delay or damages or costs were Unforeseeable, the Bidder shall give notice to the Owner, with a copy to the Owner. After receipt of such notice, the Owner shall determine in accordance with GC Section 7.2.6 if the Bidder is entitled to any extension of time or any compensation for such damages or costs and shall notify the Bidder accordingly.

3.2.15 Emergency Work

(1) If, by reason of an emergency arising in connection with and during the execution of the Design-Build Services, any protective or remedial work is necessary as a matter of urgency to prevent damage to the STP site, the Bidder shall immediately carry out such work.

(2) If the Bidder is unable or unwilling to do such work immediately, the Owner may do or cause such work to be done as the Owner may determine is necessary in order to prevent damage to the Site of the STP. In such event the Owner shall, as soon as practicable after the occurrence of any such emergency, notify the Bidder in writing of such emergency, the work done and the reasons therefore. If the work done or caused to be done by the Owner is work that the Bidder was liable to do at its own expense under the Contract, the reasonable costs incurred by the Owner in connection therewith shall be paid by the Bidder to the Owner. Otherwise, the cost of such remedial work shall be borne by the Owner.

Page 192: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 23 of 31

3.2.16 Work at Night and on Holidays

(1) Unless otherwise provided in the Contract, no work shall be carried out outside of the hours of operation of the Existing Facility and on public holidays of the Country without prior written consent of the Owner, except where work is necessary or required to ensure safety of the STP site or for the protection of life, or to prevent loss or damage to property, when the Bidder shall immediately advise the Design-Build Engineer, provided that provisions of this DBSA Section 3.3.15 shall not apply to any work which is customarily carried out by rotary or double-shifts.

(2) Notwithstanding GC Section 8.3(6) or DBSA Section 3.3.15(1), if and when the Bidder considers it necessary to carry out work at night or on public holidays so as to meet the Time for Completion and requests the Owner’s consent thereto, the Owner shall not unreasonably withhold such consent.

AR T I C L E 4 - TEST AND INSPECTION

4.1 Tests and Inspection

(1) The bidder shall at its own expense carry out at the place of manufacture or on the Site all such tests and inspections of the Plant & Equipment. The bidder shall, in addition to those tests and inspections set out in the Contract, develop a plan for all testing and inspection of the equipments that is required in order to complete the STP in accordance with the Technical Standards Appendix.

(2) The Owner or their designated representatives shall be entitled to attend any test or inspection, provided that the Bidder shall bear all costs and expenses incurred in connection with such attendance including, but not limited to, all traveling and board and lodging expenses.

(3) Whenever the Bidder is ready to carry out any test or inspection, the Bidder shall give a reasonable advance notice of such test or inspection and of the place and time thereof to the Owner. The Bidder shall obtain from any relevant third party or manufacturer any necessary permission or consent to enable the Owner or their designated representatives to attend the test or inspection.

(4) The Bidder shall provide the Owner with a certified report of the results of any test or inspection.

(5) If the Owner, or their designated representatives, fails to attend the test or inspection, or if it is agreed between the Parties that such persons shall not do so, then the Bidder may proceed with the test or inspection in the absence of such persons, and shall provide the Owner with a certified report of the results thereof.

(6) The Owner may require the Bidder to carry out any test or inspection not required by the Contract, provided that the Bidder’s reasonable costs and expenses incurred in the carrying out of such test or inspection shall be added to the Contract Price. Further, if such test or inspection impedes the progress of work on the STP or the Bidder’s performance of its other obligations under the Contract, due allowance will be made in respect of the Time for Completion and the other obligations so affected.

Page 193: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 24 of 31

(7) If any Plant and Equipment or any part of the STP fails to pass any test or inspection, the Bidder shall either rectify or replace such Plant and Equipment or part of the STP and shall repeat the test or inspection upon giving a notice under DBSA Section 5.1(3).

(8) If any dispute or difference of opinion arises between the Parties in connection with or arising out of the test or inspection of the Plant and Equipment or part of the STP that cannot be settled between the parties within a reasonable period of time, it may be referred to an Adjudicator for determination in accordance with GC Section 1.6.1(1).

(9) The Bidder shall give the Owner, at the Owner’s expense, access at any reasonable time to any part of the STP or any place where the Plant and Equipment are being manufactured or installed in the STP, in order to inspect the progress of the work and the manner of manufacture or installation, provided that the Owner shall give the Bidder a reasonable prior notice.

(10) The Bidder agrees that neither the execution of a test or inspection of Plant and Equipment or any part of the Site and the STP , nor the attendance by the Owner, nor the issue of any test certificate pursuant to DBSA Section 5.1(4), shall release the Bidder from any other responsibilities under the Contract.

(11) No part of the plant or foundations shall be covered up on the Site without the Bidder carrying out any test or inspection required under the Contract. The Bidder shall give a reasonable notice to the Owner whenever any such part of the plant or foundations are ready or about to be ready for test or inspection; such test or inspection and notice thereof shall be subject to the requirements of the Contract.

AR T I C L E 5 - COMPLETION OF THE STP

5.1 Monthly Progress Notice

(1) The Bidder shall submit to the Owner after the end of each month six copies, each signed by the Bidder’s Representative named in accordance with GC Section 8.1.2, a notice (the “Monthly Progress Notice”) in such form as the Owner may from time to time prescribe, showing the percentage of completion that the Bidder considers it has effected in the preceding month, in respect of the Design-Build Services.

(2) The Owner shall, no later than 30 days after receipt of the Monthly Progress Notice, deliver to the Owner a statement (the “Design-Build Engineer’s Statement”) indicating, separately, the percentage of completion of the Design-Build Services that the Owner considers the Bidder has effected in the applicable month.

(3) If the Owner notifies the Bidder of any defects or deficiencies, or both, in any of the Design-Build Services, the Bidder shall then correct the defects or deficiencies, and shall repeat the procedure described in DBSA Section 6.1(1).

5.2 Completion

(1) As soon as the Design-Build Services have, in the opinion of the Bidder, been completed in accordance with the Technical Standards Appendix, excluding minor items not materially affecting the operation or safety of the STP , has satisfactorily passed all Tests on Completion as set out in Attachment 1 to the Technical Standards Appendix, the Bidder shall so

Page 194: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 25 of 31

notify the Owner in writing (the “Notice of Completion”) and provide the as-built Design-Build Documents referred to in DBSA Section 2.1.4(4).

(2) The Owner shall, no later than 30 days after receipt of the Bidder’s notice under DBSA Section 6.2(1), either issue a Completion Certificate stating that the STP has reached Completion as of the date of the Bidder’s notice under DBSA Section 6.2(1), or notify the Bidder in writing of any defects or deficiencies or both.

(3) If the Owner is not satisfied that the Design-Build Services are complete, the Owner shall notify the Bidder in writing of any defects or deficiencies no later than 7 days after receipt of the Notice of Completion.

(4) If the Owner notifies the Bidder of any defects or deficiencies or both, the Bidder shall then correct such defects or deficiencies, and shall repeat the procedure described in DBSA Section 6.2(1).

(5) If the Owner is satisfied that the Design-Build Services have reached Completion, the Owner shall, no later than 7 days after receipt of the Bidder’s repeated Notice of Completion, issue a Completion Certificate stating that the Design-Build Services have reached Completion as of the date of the Bidder’s repeated Notice of Completion.

(6) If the Owner fails to issue the Completion Certificate and fails to inform the Bidder of any defects or deficiencies 14 days after receipt of the Notice of Completion or 7 days after receipt of the Bidder’s repeated Notice of Completion, then the Design-Build Services shall be deemed to have reached Completion as of the date of the Notice of Completion or repeated Notice of Completion as the case may be.

(7) As soon as possible after Completion, the Bidder shall complete all outstanding minor items so that the STP site are fully in accordance with the requirements of the Contract, failing which the Owner will undertake such completion and deduct the costs thereof from any monies owing to the Bidder.

AR T I C L E 6 - COMMISSIONING AND OPERATIONAL ACCEPTANCE

6.1 Commissioning

(1) Commissioning of the STP shall be commenced by the Bidder immediately after issue of the Completion Certificate by the Design-Build Engineer, pursuant to DBSA Section 6.2(2), or immediately after issue of the deemed Completion, under DBSA Section 6.2(6).

6.2 Tests on Commissioning

(1) The Tests on Commissioning as set out in Attachment 1 to the Technical Standards Appendix, and repeats thereof, shall be conducted by the Bidder during Commissioning of the STP and all allied works to ascertain whether the STP or the relevant part can attain the technical standards as required in the contract. The Bidder’s and Design-Build Engineer’s advisory personnel shall attend the Tests on Commissioning, and shall advise and assist the Owner. The Owner shall promptly provide the Bidder with such information as the Bidder may reasonably require in relation to the conduct and results of the Tests on Commissioning, and any repeats thereof.

Page 195: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 26 of 31

(2) If for reasons not attributable to the Bidder, the Tests on Commissioning of the STP cannot be successfully completed within 21 days after the period from the date of Completion specified in the SCC or any other period agreed upon by the Owner and the Bidder, the Bidder shall be deemed to have fulfilled its obligations with respect to the Tests on Commissioning.

6.3 Operational Acceptance

(1) Operational Acceptance shall occur in respect of the STP when the Tests on Commissioning have been successfully completed.

(2) At any time after the successful completion of the Tests on Commissioning, the Bidder may give a notice to the Owner requesting the issue of an Operational Acceptance Certificate in respect of the STP.

(3) The Owner shall, after consultation with the Owner, and no later than 7 days after receipt of the Bidder’s notice, issue an Operational Acceptance Certificate.

(4) If within 7 days after receipt of the Bidder’s notice, the Owner fails to issue the Operational Acceptance Certificate or fails to inform the Bidder in writing of the justifiable reasons why the Owner has not issued the Operational Acceptance Certificate, the STP shall be deemed to have been accepted as of the date of the Bidder’s said notice.

AR T I C L E 7 - REPORTING DURING THE DESIGN-BUILD PERIOD

7.1 Design-Build Progress Reports

(1) The Bidder shall prepare monthly progress reports of the Design-Build Services during the Design-Build Period and submit six copies of the reports to the Design-Build Engineer. The first report shall cover the period up to the end of the calendar month after that in which the Design-Build Starting Date occurred and reports shall be submitted monthly thereafter, each no later than 10 days after the last day of the month to which it applies.

(2) The Design-Build Services monthly reports shall include the following information:

(a) photographs and detailed descriptions of progress, including each stage of design, procurement, manufacture, delivery to the STP site, construction, erection, testing and commissioning;

(b) charts showing the status of Design-Build Documents, purchase orders, manufacture and construction;

(c) for the manufacture of each main item, equipment, machinery, floor or component of the STP , the name of manufacturer, manufacture location, percentage progress, and the actual or expected dates of commencement of manufacture, Bidder’s inspections, tests and delivery relating thereto;

(d) detailed records of the Bidder’s Personnel and Bidder’s Equipment (Design-Build) on the STP site and the actual usage of the Bidder’s

Page 196: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 27 of 31

Equipment (Design-Build) during the reporting period and the tasks performed by the Bidder’s Personnel;

(e) copies of quality assurance documents, test results and certificates of the Plant and Equipment;

(f) all monitoring results;

(g) safety statistics, including details of any hazardous incidents and activities relating to environmental aspects and public relations;

(h) percentage completion achieved compared with the planned percentage completion for each activity; and

(i) where any activity is behind in the scheduled completion, comments and likely consequences and a description of the corrective action being taken.

7.2 Replacement of Key Staff to be deployed by the Operator during the Design build period.

If replacement of any Key Staff during design & build services period becomes necessary, the Operator shall submit a proposal for Owner’s approval, advising therein the name of the replacement staff of equivalent or higher qualifications duly supported by his CV. The overlap period of the new key staff and the staff to be replaced shall be minimum of one month

Page 197: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Appendix 2 B

Operations Services Appendix

OPERATIONS SERVICES APPENDIX 2B TO THE GENERAL CONDITIONS

FOR A CONTRACT TO DESIGN, BUILD AND OPERATE

SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK

INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY

115M3/DAY AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE

INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE

SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION &

MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND

ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF

MEGHALAYA, INDIA

Page 198: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 1 of 19

APPENDIX 2B OPERATIONS SERVICES APPENDIX

1. Introduction

The contractor shall ensure the Operation and Maintenance of the Septage waste Treatment Plant (STP) in compliance to the guidelines contained in Chapter 23, 24, 25 of the Manual on “Sewerage & Sewage Treatment”, latest edition as published by the Central Public Health Environmental Engineering Organization (CPHEEO), Ministry of Urban Development, Government of India, New Delhi and the prescription laid down hereunder:

2. Scope of Work The Bidder shall operate and maintain the Sewage Treatment Plant, and all other allied works under this contract, for a period of 05 years. Salient features of works are:

a. After Construction of STP, during the first year of the O &M period running concurrently with defects liability period, the Bidder shall operate and maintain to plant as per specifications and maintain the quality of the treated effluent as prescribed in the Design build document. During this period (1 year only) the employer shall bear the cost towards manpower, consumables and power as per the quoted price.

b. After one year of DLP the contractor has to Operate and maintain the sewage treatment plant, all instruments and mechanical, electrical equipments in accordance with the aim and purpose of treatment. The plant & equipments covered under the above contract will be totally attended to, by the Bidder including any “Troubleshooting” to ensure smooth and trouble free operation.

c. The Bidder will monitor the performance of the sewage treatment plant; conduct the analysis of the inlet sewage and water quality after treatment. Bidder shall initiate and take adequate actions to ensure smooth and satisfactory performance / running of the plants on a 24 hours / round the clock basis.

d. The Bidder shall prepare and implement an effective plant maintenance programme in consultation with the Employer. It is an absolutely Bidder’s responsibility to look after all sorts of maintenance whether preventive, Minor, Major, or break-down

e. The Bidder will determine operating parameters, select settling (Chemical doses etc.) and generally optimize the process, and working of the treatment plant.

f. The Bidder should plan & procure all spares, Polyelectrolyte and all consumables including chemicals, grease, lubricating oil, cleaning agents, laboratory reagents etc.

g. The Bidder will be responsible for keeping up-to-date record of documents including History Card for equipments and maintaining every day log book relating to various analyses performed.

h. The Bidder shall maintain and update logbook, in which details of operational parameters are recorded in every shift and at regular interval say hourly or as decided mutually.

i. The Bidder will prepare and submit a daily report of plant performance and will assist the Employer in preparing the necessary documents for their purpose and records.

Page 199: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 2 of 19

j. The Bidder will be responsible to carry out day to day periodic maintenance, necessary to ensure to smooth and efficient performance / running of all equipments / instruments comprising the sewage treatment plant and maintaining the record of the same.

k. The Bidder shall have to issue identity cards with photographs to all the staff employed for Operation and Maintenance. The list of the same shall be submitted to the Employer mentioning qualification & experience.

l. The Bidder will also be responsible to carry out day to day Maintenance of the rising main if inside the STP premises.

m. The Bidder will employ minimum staff for operation and maintenance of the Plant as per the list mentioned in the detailed scope of work during first 5 years

n. The above staff shall be distributed in three shifts as per mutual agreement between Bidder and Employer As per agreement the number of staff in each shift should always remain present otherwise penalty towards absence of any staff shall be recovered from the Bidder. The Bidder shall make the arrangement of reliever for weekly off/holiday etc. Absence on any ground like weekly off or holiday shall not be considered. The presence of staff in each shift should be marked in muster to be maintained at office of shift in charge at Sewage Treatment Plant that shall be considered as final. The Bidder’s staff must mark their presence in this muster. The Bidder may maintain a separate register for his own purpose.

o. The staff of Bidder will always remain in contact with the Junior Engineer, Assistance Engineer/Electrical Supervisor, in charge of the Plant deployed by the Employer and follow their instruction.

p. Unsatisfactory and inefficient running of the plant and unnecessary and excessive usage of spare, consumable, etc. supported by the reasons which are under control of Bidder will be highly objected. In such cases Employer’s decision will be final and binding to the Bidder.

q. It is required that at least once in every one month a technical expert other than the Monthly Staff of the Bidder will visit the plant and will suggest if required, to improve the efficiency and working of the plant etc. No separate payment will be made for such visits. The visit must be recorded and out come of the visit/minutes of the meeting should be got signed by Employer authorities without which the visit shall not be considered.

r. Bidder will comply with all safety rules and regulations and all inter disciplinary as followed by the Employer.

s. The Employer will not be responsible for any accident /injury to the staff of the Bidder. Further the Employer will not provide any insurance or medical facility to the staff of Bidder. The responsibility lies with the Bidder.

t. All Central/State Government / Semi-Government / Local Body’s Rules and Regulations pertaining to this contract shall be followed and observed by the Bidder without any extra cost to the Employer.

Page 200: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 3 of 19

u. No accommodation / guesthouse / transportation facility will be provided by to the Bidder. Operation & maintenance staff will not be allowed any accommodation facility inside the plant premises.

v. The Bidder should employ all the staff within 7(Seven) days of successful commissioning. w. The Bidder will provide the necessary tools and tackles required for day-to-day maintenance. x. The scope of work also includes cleaning of complete plant area including floor, toilet block

railing, door, windows, light fixtures and ceiling etc. The entire premises of the plant area shall also be cleaned and maintain by the Bidder regularly.

y. This work is inclusive of but not limited to operation, maintenance, house keeping, cleaning, removing sludge by its own carrier arrangement & dispose it off as per Employer’s instructions. Preparing data recording, correspondence work to Employer and Government Departments, etc. All this work should be done as per standard practices and by following labour, factory, electrical, MSPCB, and all other old and new law and order, Indian standards etc. as applied of Local, State and Central Government of India.

z. The Bidder will employ no offense, guilty person or indiscipline man. aa. Right is reserved by Employer of suspension, dismiss ion, termination of any officer / staff

employed by Bidder. He shall have taken prior permission to employ or to terminate his personals.

bb. No watch and ward, safety insurance, security, storage, housing accommodation etc. will be provided by Employer. This will be responsibility of Bidder.

cc. Consumable items like rubber bush, graphite packing, rubber sheet, nut-bolts, material require for cleaning and house keeping etc. are to be brought by the Bidder.

dd. Electricity charges including diesel in case of power failure required for operation & maintenances of the plant shall have to be borne by the Bidder. The Bidder should provide all other consumables like polyelectrolyte, chlorine, oil & grease etc. except chlorine. All the formalities to all Government authorities for factory, Electrical, MSPCB etc. for having NOC, water consent, Hazard waste concern, approval etc. shall be done by the Bidder.

ee. Monitoring should be done as per guideline given by Employer. Bidder has to maintain all the parameter of effluent within stipulated limit or he will be penalized for not maintaining the parameters given by MSPCB and Employer. All expenditure incurred for the same like, suite fee, court fee, case fee, or the penalty as decided by Engineer of Employer and penalty charged by MSPCB will be charged to Bidder and deducted from his bills, S.D etc.

ff. Bidder shall have to test the effluent / influent at his own cost at the plant lab on daily basis. The same be verified by and checked by Employer whenever required. The Bidder shall also have to test the effluent / influent at MSPCB lab for different parameter on weekly basis at his own cost.

gg. No equipment shall remain ideal or un-attended or damaged for the period of 3 days. If any equipment is not repaired, rectified and or replaced within 3 days, the Bidder will be penalized with no limit at the rate of Rs. 2000/- per day delay per each individual equipment of the plant.

Page 201: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 4 of 19

hh. The payment of O & M charges will be made as per the tender conditions. The other terms and condition described in these complete tender documents, wherever applicable shall remain unchanged. In case of any discrepancy the decision of Employer will remain final & binding on the Bidder.

ii. During Operation & Maintenance period, Bidder has to supply all the spares, at his cost during preventive, major-minor breakdown, replacement and maintenance work. No extra payment will be made for such maintenance on any ground. The payment for the same will be made strictly as per tender document irrespective of the number of break down / minor, major repairs replacements. During the O & M Bidder will have to enter annual maintenance agreement with Manufacturers of all major Mechanical Equipments

jj. Bidder will have to maintain required Power Factor as per MePDCL rules and regulations. Incase penalty is levied by MePDCL for not maintaining the Power Factor the same will be recovered from the Bidder.

kk. Maintenance of Garden, Lawns, Plants, Bushes, Plantation of new Plants, Lawns etc. and feeding, gardening, cleaning etc. is in the scope of the Bidder. No separate payment will be made for the same.

ll. The Bidder during his O&M period will have to follow all the guidelines set by CPCB/MSPCB for Operation & Maintenance of STP.

mm. Operation and maintenance of all General facilities and utility services including all other components of work done under this contract.

nn. Operation and maintenance PLC based automation system and all instruments installed in the STP. All repairs, replacements towards the entire instrumentation works during the O & M period shall be in the scope of Bidder.

oo. Any other services required for smooth running of the scheme. pp. The Bidder shall also dispose off the sludge, screenings, grit and any other material, as per

specifications and to the satisfaction of the Employer. It is to be noted that all costs during the O&M period, including the cost of power and chemicals are to be borne by the Bidder.

qq. Within his quoted cost, the Bidder is to ensure that the following guarantees are maintained during the operation & maintenance period for quality of treated effluent, consumption of chemicals and for automation.

rr. The Bidder shall provide on job training to the local body staff as per specifications. ss. At the end of every year of operation & maintenance period, an assessment of the condition of the

plant has to be done by the Bidder through third party inspection at his own cost and based on that assessment the Bidder shall, at no extra cost to the Employer, repair and re-condition all the mechanical equipments in the concluding year of the O&M contract to a condition so that they are in running condition with regular preventive and recommended maintenance as per manufacturer's recommendations or as per CPHEEO manual.

tt. Variability of Throughput: If the quantity of treated sewage from the Facility can be increased in the existing system without impacting the annual fixed costs to the Bidder, the Bidder shall

Page 202: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 5 of 19

comply with such requirements For a sustained requirement of higher throughout from the facility, the Bidder may be required to frame and submit a proposal that shall be implemented if mutually acceptable.

3. OUTPUT AND OPERATIONAL GUARANTEES The Bidder is fully responsible for treating all the Septage/Sewage reaching at the Receiving chamber. The performance of the Bidder shall be treated as unsatisfactory if he fails to treat the complete sewage or does not maintain the guarantees listed in this clause excepting in force majeure condition or fails to fulfill other conditions of the contract. 4. Treated Effluent Quality The Bidder shall operate the Sewage Treatment Plant in such a way that the treated effluent quality attains parameters as prescribed in this contract document. 5. Treated Sludge Disposal The Bidder shall operate the Sewage Treatment Plant such that the sludge produced is of a spreadable consistency and the volume of sludge produced after necessary process, is minimum. The sludge generated from the STP shall be disposed off through proper approved means of transport to the Compost yard site as designated by the Employer 6. Chemical Requirements All chemicals consumed to operate the Sewage Treatment Plant and other facilities under this contract will be borne by the Bidder. 7. Adverse Operating Condition During which the raw sewage quality deteriorates beyond the Specifications contained in this bid document, the following provisions will be applicable a) If the raw sewage can still be treated to meet the Output Standards, the Bidder shall comply with

such specifications. b) In the event it is not possible to meet the Output Standards, the Bidder shall immediately inform the

owner and take all corrective measures at his own cost and risk to ensure that the prescribed output standards are achieved.

8. TESTS TO BE CARRIED OUT DURING O & M PERIOD Sampling and testing to be carried out twice a day and at least at the points given below. This schedule shall also be maintained during the O&M period. • Inlet chamber at sewage treatment plant for flow, BOD, pH, SS, temp, COD and oil & grease, TDS.

Outlet of the sedimentation units for BOD, suspended solids. PH, COD and oil & grease, TDS. • Inlet of the reactor unit for MLSS, Dissolved Oxygen & pH. • Outlet of the reactor unit for Dissolved Oxygen, Sludge volume Index & pH.

Page 203: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 6 of 19

• Outlet of the secondary treatment units for BOD, Suspended solids, pH, COD and oil & grease • Outlet of the chlorination units for BOD, Suspended solids, pH • Excess sludge for Volatile suspended solids, total solids, specific gravity • Various parameters to be tested by online monitoring system at these locations as per specific

requirements of Instrumentation. • Residual Free Chlorine after Chlorination. Report format for daily testing schedule.

For Various Parameters: TIME: (1000 & 1600 Hours)

Test / Parameter

Inlet To Receiving chamber

Inlet To Secondary Treatment unit

Outlet from STP.

9. Laboratory Chemicals &Meghalaya State Pollution Control Board Testing Charges: Bidder should run the laboratory (both chemical & Biological) by expertise hand to evaluate the results & different parameters stated above and for that he should supply required chemicals, reagents filters & glass wares etc complete. He should analyze the treated & untreated sewage samples for Fecal Coliform Count once in a week for that also Bidder should support & supply necessary chemicals. The Bidder should submit the weekly test reports to Employer. Bidder shall also procure the other chemicals required to carry out the different tests as per Employer requirements, CPCB/MSPCB& Other governing authorities. The CPCB/MSPCB guidelines for Operation &maintenance of STP should also be followed for performing different laboratory tests, record keeping, as well for Operation & Maintenance of the entire plant. The Bidder should get analysed / checked the untreated as well as treated sewage samples every week from MSPCB for parameters like BOD, COD, TSS, SS, PH, etc. The necessary MSPCB testing charges are to be borne by the Bidder. The MSPCB Vigilance testing charges for samples directly collected by MSPCB are also to be borne by the Bidder.

Page 204: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 7 of 19

10. Staff The minimum personnel required for O & M is as given below. Non-employment of the personnel during O&M as per the Bid will lead to imposition of penalty as mentioned in Contract data. However the Bidder shall mention the personnel required for O&M in his bid. 11. Minimum Staff Requirement for STP Operation Plant Bidder - 2, Lab Chemist -1, Lab Assistant- 1,Watchman / helper- 3,Gardener / Farm Assistant-1 The work shall be carried out on a 24 hr basis, without intermission and the staff deployed by the Bidder shall be in accordance with this contract. The Bidder shall give or provide all necessary superintendence during the O&M and as long thereafter as the Employer may consider necessary. Such superintendence shall be given by a competent person having adequate knowledge of the operation and Maintenance to be carried out (including the methods and techniques required), the hazards likely to be encountered and methods of preventing accident) as may be required for the satisfactory working of the entire plant. No labour below the age to 18 years shall be employed on the work. List of staff is to be given by the agency to the Employer and advance intimation to be given before deputing/removing any staff from site during the period of contract. Not more than one of the Bidder's key staff shall be absent from the project site at any given time. In case it is necessary for more than one of the key personnel to be absent at a given time, the Bidder shall provide replacement of equivalent or better qualifications. The CVs of such replacements shall be got approved from Employer in advance. Employer shall be authorized to direct the contracting agency to remove any or all staff employed on O&M of the plant if in his opinion continued presence of such staff is detrimental to safety or proper O&M of the plant. The Bidder shall comply with such directions & post suitable substitute(s) thereof. Whenever the Engineer has to inform the Bidder in writing that any person on the work is in his opinion unsatisfactory or/incompetent or unfaithful or dishonest, untruthful or disorderly or to be otherwise unsuitable/such person shall be discharged by the Bidder from the work and shall not be employed again on it. 12. SAFETY / SECURITY The Bidder shall take all safety precautions under various Acts/Rules under central/State Govt. from time to time and he shall be responsible for safety of its staff and the consequences thereof. The Bidder shall deploy round the clock security personnel at entrance of plant’s premises and in the compound for the safety of the plant and premises for the safety of the plant, equipment and personnel during this period.

Page 205: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 8 of 19

13. Responsibility for damages The care of the whole of the permanent works shall remain with the Bidder who shall be responsible for all accidents or damages from whatever cause arising and chargeable for anything that may be stolen, removed destroyed or damaged to whomsoever belonging and also for making good all defects and damages to the said works or to any property adjoining or any cause whatever, whether such damage or defects were occasioned by the negligence of the Bidder or not or may be or might have been discovered during the progress to be known after the completion whereof or whether payment may wholly or partially have been made or the works approved as supposed to have been properly done and no certificate of approval of any works by any officers shall affect or prejudice the right of the Employer against the Bidder or be considered or held as at all conclusive as to the sufficiency of any work materials. Adequate safety precautions against fire, flooding, lightening, electrical shocks, accident due to moving/non-moving heavy/light equipments shall be strictly observed by the Bidder at his own cost. Suitable safety measures like gumboots, gloves, safety belts, ladders, safety lamps, gas masks, Oxygen apparatus, insulated tools, alarms etc. shall be provided by the Bidder. Necessary medical first aid kit shall be made available all the time. In absence of observance of above safety precautions, the Bidder shall be responsible for any unforeseen loss of the equipments or persons dealing with it. Special care shall be taken by the Bidder while carrying out the work in sewage gas zone. Any incidence of human life or accident will be totally Bidder's responsibility. The Bidder shall ensure that the staff employed takes all necessary precautions while carrying out the work either in shift duties or any general shift as per Indian Electricity Rules/Factory Act/CPHEEO Manual, or manufacturer's special instruction for safety / gas handling. The staff should use Gas masks, Oxygen apparatus, Gum Boots, Safety Belts and Safety Lamps, etc. while carrying out the work in Bar Screens, sumps etc. The Bidder will make arrangement for all necessary safety equipments for persons working at STP as per Factory Act/Safety Rules. In the event of any accident on or off site, in which the Bidder or his personnel are involved, in which an injury occurs to any person whether directly concerned with the project or a third party, the Bidder shall inform Employer within 24 hours of the occurrence of the event. The plant will be open to local/state/central agencies for verification of safety/emission/acts compliance. During night hours, the main gate should be locked. However, shift duty staff should be alert and open the gate during surprise checking of Employer staff or any other Government Authorities or his nominee without any wait. Only bona-fide persons shall be allowed in the plant premises being a prohibited area. Smoking and drinking are prohibited in the plant. The staff engaged shall wear common uniform with name plate indicating name and designation during duty hours.

Page 206: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 9 of 19

14. REPORTING The Bidder will prepare daily and monthly reports (in Employers format) of pumping/treatment and project performance and submit to the Employer and will assist the department in preparing the necessary documents for their purpose and record as per Performa given from time to time. The reports shall contain, inter-alia, the following:

a. Raw Sewage quantity and quality and effluent quality as per the on-line monitoring programme

and other tests as specified in this section and print outs of online monitoring shall be submitted to Engineer-in charge.

b. A description of the maintenance work carried out in the reporting period. c. A report on major failures, if any, their causes and remedial actions taken. d. Sludge quality and quantity (daily basis) in the reporting period. e. Power and chemicals consumed in the reporting period.

• An inventory of the chemicals and spare parts available at the end of the reporting period. f. O&M staff deployed by the Bidder during the reporting period.

i. Any major repair works, if any. g. Bidder is required to maintain separate register/computerized records at all sites of following

information: i. Pumping register

ii. Quantity of septage/ sewage treatment and performance register iii. Working hours register iv. Electric break down register v. Maintenance register

vi. Staff attendance register h. Equipment breakdown, repair record and extent of repair i. Chlorination equipment and chlorine toner operating and using register

15. Site Order Book Site order Book shall be kept by the Engineer -in-charge at the plant site. Orders entered in this Book by the Employer or his authorized representative shall be held to have been formally communicated to the Bidder. The Engineer-in- Charge or his authorized representative shall sign each order as it is entered and will hand over the duplicate to the Bidder or his agent, who shall sign the original in acknowledgment of having received the order. 16. Record Keeping Running Records are required to be kept for various operating machines such as Mechanical Screens, Mechanical Grit Removers, Pumps, Motors, Scrapers, Air Blowers, Chemical consumption, Chlorine consumption etc. as maintained by the Bidders and kept at Control Room or duty room of the Bidders that is closer to the location of the machines.

Page 207: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 10 of 19

The records of effluent quality and other laboratory tests are kept in the laboratory as per daily sample collection and testing schedules. The record with respect to flow shall be maintained by Bidders as per Table below. The Bidder passes the daily log sheet to the plant Manager on the subsequent day duly signed in the first shift. All Bidders shall be responsible to fill up their part of observations and calculations. The plant Manager shall verify the daily record as well as the calculations and shall be responsible to generate further data using these. It is pertinent to mention that there shall be a requirement of drawing site-specific procedures and formats / forms for keeping records. This shall be the responsibility of the plant manager. Hourly record of Flow as measured / recorded thru the Notch / Weir / Flow meter:

Date/ Time

Head Over Notch / Weir / Meter

Rate Of Flow

Average Rate Of Flow In Past Hour

Flow Quantity

/ / Meters Cum/hr Cum/hr Cum 0800

0900

1000

1100

1200

1300

1400

1500

1600

17. OPERATION In case, the motor or any other equipment is burnt or damage due to negligence of the Bidder or due to faulty operation it shall be sole responsibility of the Bidder to rewind/replace/repair it as per standards of the equipment free of cost. In case of any fault in operation and performance of the plant, Bidder or his staff at duty will immediately report to the Employer about it. The Bidder shall run the plant unit after ensuring proper voltage. He shall also record all the power failures and voltage in daily log sheet. He will bring into the notice of power supply agency as well as control room and Departmental Engineer about the break down/power failure. He will also get the electricity restored simultaneously.

Page 208: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 11 of 19

Any dispute with the workmen shall be Bidder’s responsibility as per Labour Laws/Govt. Rules and Regulations. In no way the department shall be responsible for the disputes between them. The Bidder shall follow the rules and regulations as per Factory Act as it is applicable. The Bidder shall arrange all necessary required tools, tackles and instruments in advance for proper operation and maintenance of the entire plant. The Bidder shall operate and maintain all (E&M) equipment as per the recommendations of the respective equipment manufacturer. He shall further maintain and operate the plant, as per CPHEEO manual to obtain the treated effluent results as per approved norms specified in this document elsewhere along with the Technical Bid. The Bidder shall be free to follow manufactures manual in this regard. However in case of any doubt, the Employer shall refer to best of the above standards and the Bidder shall be bound to carry out the works accordingly. The floating material/scum should be collected in bins and dispose the same in open pits away from the plant, machinery which should be dried and disposed off regularly at a location outside the plant and approved by statutory authority. During rainy season, this should be buried after using lime. The treated effluent after the chlorination unit, should be disposed off to the adjacent storm water drain. The conveyance of treated and chlorinated sewage should be by means of closed conduit made by RCC Pipe/ channel as per site requirements. The screened material, grit and the dried sludge cake from the centrifuge should be collected in trailers, trucks or tractor and the same should be disposed off at Municipal Compost yard away from the plant on his own. The Bidders shall know all Central/State Government/ Semi-government/Local Bodies rules regulations to this contract without any excuse. Gas coming out of sewage is hazardous containing Methane, CO, CO2 and H2s etc. Therefore, necessary precaution and measures are to be taken in regard to human life and installations.

18. MAINTENANCE Every part of the works and all the materials to be used therein shall be subjected to such tests from time to time during the execution of the work as the Employer may direct and the whole of such tests shall in all cases be made at the Bidder’s sole expense. The work shall be carried on and completed under the exclusive control direction and supervision and to the satisfaction of the Employer. The Employer shall likewise have full power to reject or condemn any work or material that he may deem unsuitable. In case of any work or material being rejected by the Engineer in-charge, the Bidder shall immediately remove and replace the same to the satisfaction of the

Page 209: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 12 of 19

Employer or the Employer shall have full powers to get the same removed and replaced and deduct the expenditure incurred in the process from any amount due or that may become due to the Bidder. The Bidder shall use only the original and genuine spares of the original equipment as per recommendations given in the maintenance booklet of the manufactures/as per directions of the Employer. Adequate stock of such spares is to be maintained by the Bidder. Test certificate of manufacturer is required for bearings along with supplies. Test certificate of all major equipment will be submitted from the manufacturer. If any material brought to the site of works, be in the judgment of the Engineer, found inferior or improper & not as per described standards, the said materials or workmanship shall where required by the Employer shall be removed or amended by the Bidder forthwith or within such period for every breach by the Bidder in this clause. The Engineer is hereby authorized to remove or cause to be removed the materials and workmanship so objected to or any part thereof and replace the same with such other materials and workmanship as shall be satisfactory to him and there upon the Bidder shall on demand repay to the Employer the expenses incurred there by or to which the board may be put or be liable in connection therewith, the amount thereof to be certified by the Engineer whose certificate shall be final. Bidder shall be responsible for civil maintenance of buildings and roads changing of broken glasses, white washing and painting every two years and watering of lawns/plants within the plant premises. The Bidder shall also be responsible to maintain cleanliness in around the plant including machineries, disposal of floatings removed from the Bar Screens/reactors, etc. Grit and other unwanted material. All the steel structures and machines installed in open areas should be painted after every monsoon period after cleaning the surface as per the instructions of the Engineer- in-charge. Entire plant including all civil structures, mechanical equipments, HT panel and Transformers etc. shall be repainted after every 2(1/2) years as per original painting specifications. All leakages should be attended promptly to avoid any nuisance etc. Chokages should be removed at once. All the valves/gates which are not used regularly should be operated at least once a week and make sure that they are properly lubricated /greased. All safety valves should be checked daily and ensure that they are working properly. In case of any fault the same should be attended immediately without any wait. The maintenance of the plant shall be as per maintenance manuals of the manufacturer for all equipments. Bidder shall keep all the safety devices in working order.

Page 210: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 13 of 19

The Bidder should make sure that no unwanted material should float/grow in and around different units. In case it is found the same shall be removed /cleaned immediately. He shall also be responsible for cleaning/sweeping the plant buildings inside and outside, roads, foot path etc. Launders/Weirs etc. of reactors etc to be maintained clean round the clock. During preventive/ breakdown maintenance, the Bidder has to visit the unit/units as and when needed. The pumping units or other machineries required if any shall have to be arranged by the Bidder at his own costs for completing the work. In case of battery operated auto system panels and also system alarm etc., batteries are required to be maintained and replaced as and when needed by the Bidder. The Bidder has to make sure that proper fire extinguishers are used to cover any kind of fire during any miss-happening within the total boundary area including plant machineries. The expiry period of refills of various fire extinguishers should be watched and maintained during the period of contract. The Bidder has to maintain all the toilets for proper use of the staff etc. In no case, in-sanitation conditions are developed. The Bidder has to maintain minor repair in Civil structures, including replacement of sanitary items, glass pans etc. as and when needed. The Bidder shall maintain the Supervision, Control and Data Acquisition System (SCADA) in working condition for the 05 years of O & M period. The Bidder shall not remove/shift any equipments/machinery even temporarily without written permission of the Employer or authorized representative. Though the Bidder has to operate and maintain all the equipments/machineries, lighting (plant area, boundary walls, gate lightening etc.) but the machine of the equipment under warranty should not be dismantled without prior permission of the Employer. The list of such equipments (Under warranty), if any, will be given by the Bidder. POL (petrol/Diesel Oil & Lubricants) has to be arranged by the Bidder as and when needed as per manufactures recommendations for periodical maintenance of entire plant. The Employer will not provide such items. The Bidder shall have to carry out periodical testing of the installations/equipments as per CPHEEO manual and I.E. Rules as amended up to date and shall have to maintain complete record in the maintenance register. The Bidder has to provide necessary protection systems wherever necessary including alarms and fire extinguishers. The Employer will be at liberty to post its staff for surveillance/ inspection at the plant along with access to all units, control room and records, log books, MIS (Management Information system), data etc. round the clock as required. The logbooks and attested by the staff from authorized Employer Officials and this record shall be open for further inspection/checking by Employer and all other Government Agencies CPCB/MSPCB etc. for further action/improvements/rectifications. The staff in each shift shall mark their

Page 211: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 14 of 19

attendance on the log sheet individually. The plant and equipments covered under the above contract shall be totally attended by the Bidder including any 'Trouble Shooting' to ensure smooth and trouble free operation. In case of major repair due to normal wear and tear/break down, the Bidder should bring the same to the notice of the Employer immediately and necessary measures for its repair should be taken simultaneously. Breakdown, all repairs of any kind are to be attended by the Bidder. Any unit/equipment being irreparable in the opinion of the Employer will be replaced by the Bidder at no cost to Employer. All relays and HT equipments shall be calibrated and tested atleast once a year and the report shall be submitted to the Employer. The Bidder shall give his telephone no., contact addresses, etc. to the Employer as well as shift duty shift to contact him during emergency/odd hours etc. The Bidder will be responsible to carry day to day as well as periodic maintenance, necessary to ensure smooth and efficient performance/running of all equipments instruments installed at the Sewage Treatment Plant. He shall be responsible for maintenance/replacement of street light poles and light etc. also. All the plant, building land, Sewage treated/untreated/sludge, etc. shall remain the property of Employer. 19. Oil & Grease Schedule Routine & preventive maintenance of electrical /Mechanical/ hydraulic/ machines & equipments is to be carried out as per the operation & maintenance manual. Minimum oil & grease requirement for five year Operation & maintenance of the Plant to be procured by the Bidder well in advance.

20. Routine, Preventive, Minor & Major maintenance of all Civil, Electrical, Mechanical, hydraulic

machines & Equipments of the plant. The Bidder should prepare schedule of daily maintenance & preventive maintenance of all the equipments & machineries operated & run by him in the premises of the plant. The schedule should be as per the guidelines mentioned in the tender &as per the O& M manual. The scope covers Routine, Preventive, Minor & Major maintenance of all major minor equipments, and machines in the Plant like Submersible pumps, Coarse &Fine screens Grit Removal Mechanism, Channel gates, Decanters, Sludge pumps , Centrifuge feed pumps, Centrifuges, All dosing systems including Chlorine Dosing equipment, etc. The scope also covers Routine, Preventive, Minor & Major maintenance of all the instrumentation system installed like PLC, Actuators, Flow meters level indicators etc. The Bidder should also carry out Routine, Preventive, Minor & Major maintenance of all major minor electrical equipments like Electrical Panels,

Page 212: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 15 of 19

Switch Gears, Power Cables, Control cables, Changeover switches DG set etc so as to ensure uninterrupted round the clock operation of the Plant. The Bidder should maintain all civil structures including Administrative building, Store room, Storm Drains, fencing etc in a neat manner. He should maintain all civil structures of the plant sturdy to complete the natural/designed lifetime. The Bidder should carry out the safety audit of the plant & necessary certificate from the competent authorities. This item includes all types of Routine, Preventive, Minor & Major maintenance of all Civil, Electrical, Mechanical, hydraulic machines & equipments of the plant covering supply erection test &trial run of the part/machine to be repaired/ replaced with material &labour expenses, necessary hardware’s, sundry materials, lubricant oils, power oils, grease other materials plus machining charges etc. The Bidder should procure all the spares required for all types of maintenances in advance. The part/equipment/machine to be repaired /replaced should be as per the Employer approved list & as per the O& M manual or as per the existing manufacturer’s brand.

21. RELEASE OF HAZARDOUS SUBSTANCES OR HAZARDOUS WASTE (If any) The Bidder, after first notifying the MSPCB shall be responsible for fulfilling all requirements associated with any release of any substance into the environment (form the facility or the site) as required by Applicable law or by any Legal Entitlement including but not limit to the notification or reporting of releases / Hazardous substances or Hazardous Waste. The Bidder shall prepare a memorandum evidence such notification or reporting and provide copies thereof to the Employer, along with any documents provided to the relevant regulatory agency regarding such release. The Bidder shall process and obtain the clearance of all such agencies as required for the purpose, including all clearances during O&M period. He shall be fully responsible to comply with all requirements of Laws including hazardous substances, emission standards for air, discharge standards for effluent oil, sub-soil pollution. The contracting agency shall not release any hazardous/toxic materials inside the premises.

22. Technical Audit The Employer has the right to conduct a technical audit of the Facility and to perform any analysis or inspection he deems necessary. The Bidder shall at his cost provide all assistance the Employer required to complete these inspections. Such audits may cover all or any of the obligations of the Bidder, including without limitation,

• Verification of the system capacity and save for normal wear and tear during the O&M Period • Verification of the performance standards and useful life of the individual assets of the Facility,

save for normal wear and tear during the O&M Period

Page 213: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 16 of 19

• Verification of the capacity of the Facility to meet Output Standards during the residual life of the Facility and save for normal deterioration expected during such residual life

• Sampling, testing and verification of the Output Standards for treated sewage, sewage losses 23. FACILITY VISITS

a. At any time or at the end of each twelve month period, or at the initiative of the MSPCB, a visit shall be organized so that both parties can check the condition of the installations at the facility.

b. A report shall be drawn up to record the opinions of the both parties. The MSPCB reserves the right to call the equipment manufacturers or specialized technicians for these visits. All expenses are to be borne by the Bidder for the purpose.

24. OPERATION AND MAINTENANCE MANUAL • The Bidder shall prepare a detailed program (referred to as O&M Manual) covering the operation

and maintenance of the treatment plants as a whole. This program shall include the work and activities described in this Chapter, as relevant to the specific items and technology. Notwithstanding the program submitted and approved, the Bidder is deemed to have tendered for and covered in his price, the responsibility for operating and maintaining the treatment plant for the full period of the contract, thereafter handing it over as specified.

• The Bidder shall provide 5 copies of draft O&M Manual to the Employer, at the time of the commissioning of the project and on approval of draft, 10 copies of operation &maintenance manual shall be supplied by the Bidder.

• The O&M Manual shall include the daily, weekly, monthly, quarterly, half yearly and annual checks and remedies if necessary to be performed for effective operation of the plant, elaborate detail, all operating and maintenance procedures and policies which are required, advisable and / or necessary for the Facility to achieve full compliance with the operational guarantees and to achieve maintenance and repair standard for the Facility which will ensure compliance with the maintenance specifications. The O&M manual shall include interalia full explanation of all plant procedures and processes.

• Without limiting the generality of the foregoing the O&M Manual shall include descriptions, procedures and shall comply with the requirements, set forth in the provisions of the Bid Documents.

• The draft of the O&M Manual shall be subject to the review and approval of Employer, which shall have the right to make any changes and revisions to the O&M Manual as it may deem appropriate. The Bidder shall revise such draft O&M Manual prior to the commencement of the O&M period.

• At the end of the construction period, the Bidder shall revise the draft O&M Manual to reflect any updates, changes or revisions it deems appropriate, inter-alia based on its experience and as necessary to reflect any modifications or adjustments to the plant. Without limiting the above, the Bidder shall annually fully review, revise, update and modify the draft O&M Manual as may be

Page 214: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 17 of 19

necessary or appropriate. Any revision to the draft O&M Manual shall be subject to the review and approval of Employer.

• Employer shall have the right to require revisions to the draft O&M Manual as it may deem appropriate. The Bidder shall prepare and submit to Employer, for its review and approval, 30 days prior to the proposed date of commencement of O&M, a revised draft O&M Manual which reflects all changes, revisions and modifications. The Bidder shall prepare the O&M Manual, as approved by the Employer, prior to the start of O&M.

• During the term of this Agreement, the Bidder shall promptly notify Employer of any revisions, additions or modifications which he, in his professional opinion, believes should be made to the O&M Manual, whether as a result of additional experience in operating and maintaining the Facility, changes in influent quality or volume, changes or modifications to any equipment part, component or structure incorporated in the Facility.

• Such notification shall set forth the reason for the proposed revision. Any proposed revision shall be subject to the approval of the Employer. In addition, during the term of this Agreement, Employer shall have the right to require relevant changes, revisions, or additions to the O&M Manual as it, shall deem appropriate to ensure full compliance with the O&M Standards.

• The Bidder shall submit 10 copies of the final O & M manual along with a soft copy in Microsoft Word Format.

25. TRANSITION PLAN – Taking over

(1) At least one year prior to the End Date, the Operator shall develop a plan to hand-over the STP and all appurtenant structures and allied works to the Subsequent Operator at the end of the term of the Contract (the “Transition Plan”).

(2) The Transition Plan shall include,

(a) plans to transfer the STP to the Subsequent Operator;

(b) transition plans with respect to the Operator’s Personnel including a plan for transition of the Operator’s Personnel to a Subsequent Operator;

(c) a proposed process for the transfer of all Contract Records to the Owner;

(d) plans to transfer operations and maintenance functions to the Subsequent Operator; and

(e) a program to train staff of the Owner in all aspects of the operation and maintenance of the New Facility.

Page 215: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Page 18 of 19

26. TAKING OVER AFTER COMPLETE O& M PERIOD OF 5 YEARS The plant will be taken over by Employer on satisfactory completion of the Operation & Maintenance of the plant provided that

a. The plant /equipment are in good, smooth running condition. b. The result of the treated wastewater quality for last three months of operation of the plant is

within the limits specified. c. In case of major repairs /replacement of equipment, the performance guarantee for such

unit/equipment is extended by six months from the date of putting back in to satisfactory operation of such unit/equipment In case such putting back is at the end of completion of operation & maintenance period.

d. All records of operation & maintenance are handed over to Employer in proper condition. e. The Third Party Inspection of the plant viz: Civil units, Mechanical units/equipments, Electrical

units/equipments, instruments, & all other Major& minor units/machines has to be carried out & the defects unsatisfactory working performances of the equipments/ machines are to be corrected by the Bidder at his own cost. The necessary Third Party inspection agency shall be appointed and payment shall be borne by the Bidder

f. The Bidder should repaint the plant including all civil structures, mechanical, electrical equipments/ units /structures as per the tender specifications.

In case taking over is delayed on account of Bidder's failure, the operation & maintenance period will be extended further till it meets the requirement without any extra cost to Employer. The Bidder will also be penalized for such delays.

Page 216: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1 of 267

Appendix 2C

Technical Standards Appendix

TECHNICAL STANDARDS APPENDIX

APPENDIX 2 C TO THE GENERAL CONDITIONS FOR A CONTRACT TO

SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY

AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE

COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 217: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

2 of 267

GENERAL The 115m3/day capacity Septage/sewage treatment plant to be Designed, Build, Tested and Commissioned by the Operator / Contractor shall comply with the guidelines contained in “Manual on Sewerage and Sewage Treatment” Latest Edition published by the Central Public Health & Environmental Engineering Organization (CPHEEO), Ministry of Urban Development, Government of India. The Technical Standards and Specifications contained in this contract shall be read along with the following standard specifications (latest versions) published by the Bureau of Indian Standard listed below:

The list is not exclusive and the operator shall be responsible to follow the appropriate standards:

i) IS 6280 – 1971 – Sewage Screens

ii) IS 8413 – 1982 – Biological Treatment Equipment – Part II and its modifications

iii) IS 10037 – Part I – 1981 & Part II & III – 1983 – Sludge dewatering equipments

iv) IS 10261 – Requirements for settling tank for waste water

v) IS 105533 – Part I, II, III – Chlorination Plants

vi) IS 5600 – 1970 - Sewage and Drainage Pumps

vii) IS 6279 – 1971 – Grit Removal devices

1.1 Documents Comprising the Technical Standards Appendix

(1) The Technical Standards Appendix consists of,

(a) the Technical Standards General Provisions;

(b) the Technical Standards Appendix Chart; and

(c) Attachment 1 – Tests to be carried out by the Bidder.

(2) The Technical Standards Appendix Chart sets out the technical standards with reference to the Design-Build and Operations Services Appendices Sections.

Page 218: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

3 of 267

1.2 Supplementing the General Conditions and Design-Build or Operating Services Appendix

The Technical Standards Appendix shall be read along with the GCC / SCC and Design-Build and Operations Services Appendices for the purpose of providing greater specificity of the technical standards which the Bidder is required to meet.

ARTICLE 2 - THE TECHNICAL STANDARDS CHART

2.1 Design-Build or Operations Services Appendix Description

The descriptions contained in the Technical Standards Appendix Chart entitled, “Description of Service” are for the convenience of the Bidder and do not supersede the actual wording of the Design-Build and Operations Services Appendices.

2.2 General Quality Standards

(1) The term “General Quality Standard” means a standard of performance which,

(a) is competent, efficient, economical and in accordance with internationally accepted techniques used in the sewer disposal and civil works construction industries;

(b) is in accordance with professional engineering, accounting and consulting standards, as applicable, recognized by national or international professional bodies;

(c) is in accordance with sound management, commercial, technical, design and engineering practices;

(d) employs appropriate technology and safe and effective equipment, machinery and methods;

(e) is in accordance with national and local standards and codes in the Owner’s Country;

(f) protects the interests of the Authorities;

(g) is in accordance with the Applicable Law;

(h) is in accordance with the technical specifications and design standards of the Owner as provided to the Bidder;

(i) is in accordance with the applicable Environmental Assessment and Environmental Management and Mitigation Plan; and

(j) is in accordance with the Design-Build Documents as approved by the Owner.

Page 219: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

4 of 267

(2) In the event of any conflict or inconsistency between any standards that comprise the General Quality Standard, local and national standards in the Owner’s Country shall prevail over international standards.

(3) The Bidder shall, at all times, carry out the Services in accordance with the Technical Standards as specified and, where a specific technical standard of quality of performance has not been specified, the Bidder shall perform the Services to the standard of “General Quality Standards” set out in Section 2.2(1) of the Technical Standards Appendix.

(4) If the Owner is subjected to fines or penalties as a result of the Bidder’s breach of these Technical Standards, such fines or penalties shall be paid by the Bidder

2.3 Design-Build Services

(1) In respect of the Design-Build Services, the Bidder shall ensure that the design of the STP is prepared by qualified designers who are professionally recognized to design the Sewage Treatment Plant and allied services.

(2) The Bidder warrants that the Bidder and its designers and design Sub Bidders have the experience and capability necessary for the design.

Introduction:

The offers shall be based on the bidder's own design and operating philosophy which is to be based on the selected modern treatment technologies and should be within the overall framework and guidelines specified in the bid document and its specifications. The bidder’s design for the entire facility shall be such that the project shall

• Require minimum land space • Require minimum energy for treatment of Septage waste/sewage • Generates treated effluent that can be recycled

Planning of the entire system should be done in such a manner so as to optimize capital and operational costs of treatment of Septage/sewage and maintenance of the Plant on whole on sustainable basis.

The design submitted by the operator shall be proof checked by qualified Engineering Institute (Approved by the DB Engineer), for which the charges shall be borne by the operator. The delay in checking designs by the third party as above shall be treated as the delay on the part of the operator for operation of the tender clause

Page 220: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

5 of 267

Technical Standards

Technical specifications for Septage/sewage Treatment Plant to be read in conjunction with scope of work, design criteria, drawings and other technical details:

A: CIVIL WORKS

1 Specific Civil/Structural Work Requirement

1.1 DESIGN SUBMISSIONS:

Complete detailed design /hydraulic calculations & drawings of foundations and superstructure together with general arrangement drawings and explanatory sketches shall be submitted to the Employer. Separate calculations for foundations or superstructures submitted independent of each other shall be deemed to be incomplete and will not be accepted. Though no GA drawings of all units are required along with the bid, a schematic layout /GAD shall be submitted along with the bid

The design considerations described herewith establish the minimum basic requirements of plain and reinforcement concrete structures, masonry structures and structural steel works. However, any particular structure shall be designed for the satisfactory performance of the functions for which the same is being constructed. The Bidder shall also take care to check the stability of partly.

1.2 DESIGN STANDARDS

All designs shall be based on the latest International or Indian Standard (IS) Specifications or Codes of Practice. The design standards adopted shall follow the best modern engineering practice in the field based on any other international standard or specialist literature subject to such standard reference or extract of such literature in the English language being supplied to and approved by the Employer or Employer’s Representative. In case of any variation or contradiction between the provision of the IS Standards or Code and the specifications given with the submitted bid document, the provision given in the Specification shall be followed.

1.3 DESIGN LOADINGS

All buildings and structures / underground structures shall be designed to resist the worst combination of the following loads/stresses under test and working conditions these include dead load, live load, wind load, seismic load, stresses due to temperature changes, shrinkage and creep in materials, dynamic loads and uplift pressure.

i. Dead Load

This shall comprise all permanent construction including walls, floors, roofs, partitions, stairways, fixed service equipment and other items of machinery. In estimating the loads of process equipment

Page 221: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

6 of 267

all fixtures and attached piping shall be included, but excluding contents shall be considered. The following minimum loads shall be considered in design of structures:

S.No Parameter Load

1 Weight of water 10.0 KN /m3

2 Weight of soil (irrespective of strata available at site and type of soil used for filling etc) However, for checking stability against uplift, actual weight of soil as determined by field test shall be considered

20.0 KN/m3

3 Weight of plain concrete 24.0 KN/m3

4 Weight of reinforced concrete 25.0 KN/m3

5 Weight of brickwork (exclusive of plaster) 22.0 KN/m3

6 Weight of plaster to masonry surface 18.0 KN/m3

7 Weight of granolithic terrazzo finish or rendering screed, etc 24.0 KN/m3

8 Weight of sand (filter media) 25.0 KN/m3

9 Roof Treatment 25.0 KN/m3 10 Brick bat coba for toilet filling 20.0 KN/m3

ii. Live Load

Live loads shall be in general as per IS 875. However, the following minimum loads shall be considered in the design of structures.

S.No Location Live Load

1 Floor supporting Pumping Machinery 1000 kg/sq.m

2 Storage, Maintenance Bay, Air Blower 750 kg/sq.m

3 Platform, Staircase, Corridors, Walkways 500 kg/sq.m

4 Toilet 200 kg/sq.m

5 Roof Slab 150 kg/sq.m

In the absence of any suitable provisions for live loads in IS Codes or as given above for any particular type of floor or structure, assumptions made must receive the approval of the Employer’s Representative prior to starting the design work. Apart from the specified live loads or any other loads due to material stored any other equipment load or possible overloading during maintenance or

Page 222: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

7 of 267

erection/construction shall be considered and shall be partial or full whichever causes the most critical condition.

iii. Wind Load

Wind loads shall be as per IS: 875- 2002 Part-III.

iv. Dynamic Load

Dynamic loads due to working of plant items such as pumps, blowers, compressors, switchgears, traveling cranes, etc shall be considered in the design of structures.

v. Other Loads

In addition to earth pressure and water pressure etc., the surcharge of 1 Ton/sq.m shall be taken into account in the design for channels, tanks, pit etc.

vi. Earthquake Load

This shall be computed as per IS: 1893 – 2000.

1.4 JOINTS

Movement joints such as expansion joints, complete contraction joints, partial contraction joints and sliding joints shall be designed to suit the structure as per relevant IS code provisions. Expansion joints of suitable gap at intervals not more than 30 m shall be provided in walls, floors and roof slabs of water retaining structures.

Construction joints shall be provided at right angles to the general direction of the member. The locations of construction joints shall be decided on convenience of construction. To avoid segregation of concrete in walls, horizontal construction joints are normally to be provided at every 1.2 m height, GI 18 guage/PVC water stops of suitable type and minimum 230 mm width, 6 m thick shall be used for walls and base slabs.

1.5 WATER RETAINING STRUCTURES

Liquid retaining/conveying structures including the members covering the same (such as roof of a chamber, channel etc.) shall be designed by uncracked method of design as per BIS: 3370 and 6494. Basement RC walls and slabs below ground shall also be designed by uncracked method of design as liquid retaining structures. Shear shall be checked by working stress method as per BIS: 456. Minimum temperature and shrinkage reinforcement shall be 0.3% in each direction.

All underground or partly underground liquid containing structures shall be designed for the following conditions:

Liquid depth up to full height of wall: no relief due to soil pressure from outside to be considered. Structure empty (i.e. empty of liquid, any material, etc) full earth pressure including saturated

condition and surcharge pressure wherever applicable to be considered.

Page 223: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

8 of 267

Structures shall be designed for uplift in empty conditions as per water table indicated in the geotechnical report or high flood level, whichever is maximum. No reduction factor for the uplift force shall be considered.

The dead weight of the empty structures should provide a safety factor of not less than 1.2 against uplift pressures during construction and in service.

Wall shall be designed under operating conditions to resist earthquake forces from earth pressure mobilization and dynamic water loads;

Underground or partially underground structures shall be checked against stresses developed due to any combination of full and empty compartments with appropriate ground/uplift pressures from below to base slab

The walls and base slabs shall be designed for saturated earth/water pressure corresponding to high flood level or finished plot level whichever is higher.

For design purpose, sub soil water level is to be considered as 2 meter below the average natural ground level.

1.6 FOUNDATION The minimum depth of foundations for all structures, equipment’s buildings and frame

foundations and load bearing walls shall be as per IS: 1094. The earth fill above virgin ground level till formation level shall be taken as a surcharge load and

shall be added in the loads coming on foundations appropriately Care shall be taken to avoid the foundations of adjacent buildings or structure foundations, either

existing or not within the scope of this Contract Suitable adjustments in depth, location and sizes may have to be made depending on site conditions. No extra claims for such adjustments shall be accepted by the Employer.

Special attention is drawn to danger of uplift being caused by the ground water table Plinth level of all structures/top of tanks shall be at least (600) mm above high flood level.

1.7 DESIGN REQUIREMENTS

The following are the design requirements for all reinforced or plain concrete structures: All blinding and leveling concrete shall be minimum 100 mm thick in concrete grade M15 for

Building & 150 mm thick in concrete grade M30 for Water Retaining Structure. as per IS -3370 (Part- 1)-2009 latest version..

All structural reinforced concrete shall be with a maximum 25 mm aggregate size for footings and base slabs and with a maximum 20 mm aggregate size for all the Water Retaining Structures & other structural members.

All liquid retaining structures shall be designed as per IS: 3370. The minimum grade of concrete shall be M30 using Sulphate resistant Cement.

All Buildings, Pipe Pedestals, Thrust Block, Pump Foundation & other structures shall be designed as per IS-456. The minimum grade of concrete shall be M20.

Page 224: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

9 of 267

The maximum free water cement ratio shall not exceed 0.5 for all liquid retaining structures. The amount of reinforcement in each of the two directions at right angles within each surface

zone should not be less than the minimum specified as IS:3370 or IS:456 whichever is applicable for the type of structure.

Use of pressure relief valves to reduce uplift pressure due to ground water table shall not be allowed.

All buildings shall have a minimum 1.0 m wide, 100mm thick plinth protection paving in M15 grade concrete or stone slabs/tiles. All plinth protection shall be supported on well-compacted strata.

The following minimum thickness shall be used for different reinforced concrete members irrespective of design thickness.

Sl. No. Civil Member Width(mm)

1 Walls for liquid retaining structures 200

2 Base Slab of liquid retaining structures 350

3 Wall foundation (At Junction of Base Slab & Wall) of liquid retaining structures

400

4 Roof Slab of liquid retaining structures 150

5 Walls of Launders 150

6 Base slab of Launders 125

7 Floor slabs including roof slabs, walkways canopy slabs 100

8 Walls of cables/pipe trenches, underground pits, etc 125

9 Footing – Edge Thickness 250

10 Footing – At the Face of Column 450

11 Column 230 (width) 300 (depth)

12 Parapets, chajja 100

13 Precast trench cover 75

14 Beam 230 (width) 300 (depth)

1.8 MINIMUM COVER TO MAIN REINFORCEMENT

Sl. No. Member Details Cover (mm)

Page 225: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

10 of 267

Sl. No. Member Details Cover (mm)

1 Slab Free Face 20

Face in contact with earth 30

2 Beam Top /Bottom 40

Side 30

Face in contact with earth 40

3 Column and pedestal Super Structure 40

Face in contact with earth 40

4 Retaining wall, Basement and Pit wall

Free side 30

Face in contact with earth 30

5 Liquid Retaining Structure Face in contact with liquid 40

Face in contact with earth 40

Free face 40

6 Foundation Bottom 60

Top 60

1.9 MINIMUM BAR DIAMETER

S.No Member Diameter (mm)

1 Major Foundation 10

2 Block Foundation Main Bars 8

3 Block Foundation – Tie Bars 8

Page 226: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

11 of 267

S.No Member Diameter (mm)

4 Minor Foundation (Local Foundation etc.) 8

5 Column, Pedestal – Main Bars 12

6 Column, Pedestal – Ties 8

7 Beam – Main Bars 12

8 Beam – Anchor Bars 10

9 Beam – Stirrups 8

10 Slab – Main Bars 8

11 Slab – Distribution Bars 8

12 Wall – Main Bars 10

13 Wall – Distribution Bars 8

14 Minor elements such as chajjas, Lintel Beams etc 8

1.10 BAR SPACING

Sl. No. Member Minimum (mm) Maximum (mm)

1 Foundations 125 200

2 Slabs 100 300

3 Stirrups for Beams 100 300

4 Ties for Columns, Pedestals 100 300

5 Walls 100 300

• Bar spacing shall be provided in multiple of 25 mm.

Page 227: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

12 of 267

2 MATERIALS IN GENERAL

The term “materials” shall mean all materials, goods and articles of every kind whether raw, processed or manufactured and equipment and plant of every kind to be supplied by the Bidder for incorporation in the Works.

Expect as may be otherwise specified for particular parts of the works the provision of clauses in “Materials and Workmanship” shall apply to materials and workmanship for any part of the works. All materials shall be new and of the kinds and qualities described in the Contract and shall be at least equal to approved samples.

As soon as practicable after receiving the order to commence the works, the Bidder shall inform the Employer’s Representative of the names of the suppliers from whom he proposes to obtain any materials but he shall not place any order without the approval of the Employer’s Representative which may be withheld until samples have been submitted and satisfactorily tested. The Bidder shall thereafter keep the Employer’s Representative informed of orders for and delivery dates of all materials.

Materials shall be transported handled and stored in such a manner as to prevent deterioration damage or contamination failing which such damaged materials will be rejected and shall not be used on any part of the Works under this contract.

2.1 Cement

The Cement shall be Sulphate Resistant Cement grade-53 in all water retaining structures and OPC 53 grade cement for other structures, confirming to the relevant B.I.S. codes and approved by the Employer’s Representative. Manufacturers Test Certificate shall have to be furnished. Minimum cement consumption for RCC M20 shall be considered as 350 kg/cum and for RCC M25 shall be 380 kg/cum. mixing of fly ash in the concrete shall not be considered. Approved Manufacturers of Cement of reputed firm with ISO certification shall be used

2.2 Reinforcement Steel

Reinforcement Steel shall confirm to BIS Specification 432-1966 (with up to date revision) and B.I.S. Specification 1786-1985 (with up to date revision). All Reinforcement Steel will be TMT Grade approved by the Employer.

2.3 Minimum Cement Content

The minimum cement content for each grade of concrete shall be as per table below.

Page 228: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

13 of 267

Sl. No. Grade of Concrete Minimum Cement Content in Concrete (Kg/m3 of finished concrete)

1 M15 240

2 M20 300

3 M25 300

4 M30 320

Please refer clause no. 8.2.4 Table no: 5 for reinforced concrete of IS code 456 – 2000 (latest version)

3 SAMPLES AND TESTS OF MATERIALS

The Bidder shall submit samples of such materials as may be required by the Employer and shall carry out the specified tests directed at the site or at the supplier’s premises or at the laboratory approved by the Employer or the Employer’s Representative. Samples shall be submitted and tests carried out sufficiently early to enable further samples to be submitted and tested if required by the Employer.

The Bidder shall give the Employer seven days’ notice in writing of the date on which any of the materials will be ready for testing or inspection at the supplier’s premises or at a laboratory approved by the Employer. Employer or the Employer’s Representative shall attend the test at the appointed place within seven days of the said date on which the materials are expected to be ready for testing or inspection according to the Bidder, failing which the test may proceed in his absence unless instructed by the Employer’s Representative to carry out such a test on a mutually agreed date in his presence.

The Bidder shall in any case submit to Employer within seven days of every test such number of certified copies (3) of the test results as the Employer’s Representative may require.

Approval by the Employer’s Representative as to the placing of orders for materials or as to samples or tests shall not prejudice any of the Employer’s Representative powers under the Contract. The provisions of this clause shall also apply to materials supplied under any nominated sub-contract.

4 ORIENTATION

The works shall be laid out within the confines of the site in order to be compatible with the existing infrastructural facilities, inlet and outlet pipe work/channels and nearby water bodies. Underground services requiring to be relocated in order to accommodate the proposed site layout shall be relocated by the Bidder to alignments approved by the Employers Representative.

Page 229: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

14 of 267

4.1 Buildings and Structures

All the building and structure works shall generally comply with the following Employer’s Requirements unless otherwise specified elsewhere:

All building works shall be of reinforced concrete framework.

All external walls shall be in 230 mm thick brick masonry built in cement mortar (1:5). Transoms and mullions of 115 mm x 230 mm size with four numbers 6 mm bars and 6 mm links at 150 mm c/c shall be provided to form panels not exceeding 3,500 mm x 3,500 mm in size.

All internal partition walls except for toilets shall be in 230 mm thick brick masonry built in cement mortar 1:5 with transoms and mullions as in (b) above. Toilet partition walls shall be in 115 mm thick brick masonry built in cement mortar 1:4 and shall have transoms and mullions as in (b) above and shall form panels not exceeding 1,200 mm x 1,200 mm in size.

Finishes to concrete liquid retaining structures shall be:

a. F1 - External surfaces, buried

b. F2 - External surfaces exposed and up to 300 mm below ground level

c. F2 - Internal surfaces

Finishes to other concrete structures shall be:

a. F1 – Buried

b. F1 - Exposed, where plastering is specified

c. F2 – Exposed

All internal masonry surfaces finish shall have 12 mm thick plain faced cement plaster in cement mortar (1:4) with neat cement finish on top. Over this, one coat of primer and two coats of plastic emulsion paint of approved quality and shade shall be provided.

All external masonry and concrete with rough board finish shall have 20 mm thick sand faced cement plaster in two coats, base coat 12 mm thick in cement mortar 1:4 and finishing coat 8 mm thick in cement mortar 1:4. Waterproofing compound of approved make and quality shall be added to the cement mortar in proportions as specified by the manufacturer.

All external surfaces above ground level shall have one coat of primer and two coats of waterproof cement based paint of approved quality and shade. A coat of silicone water repellent paint shall also be applied thereon.

Page 230: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

15 of 267

Toilet areas, walls and ceilings, shall have one coat of primer and two coats of plastic emulsion paint. Toilet floor slab shall be filled with brick bat coba (broken bricks in lime) and provided with waterproofing as per the specifications of an approved specialist waterproofing company. The finished floor level in toilet areas shall be 25 mm below general finished floor level elsewhere in the building.

The flooring in all areas except toilets and staircases, pumping stations, chlorination building, centrifuge building, workshop, store room D.G. room shall be in 250 mm x 250 mm x 20 mm thick marble mosaic tiles of approved make unless otherwise specified, shade and pattern and placed in cement mortar 1:4 to give overall thickness of 50 mm. Half tile skirting shall also be provided in these areas.

The flooring in the pumping stations, chlorination building, centrifuge building, workshop, D.G.room shall be 60mm thick cement flooring with metallic concrete hardener topping, under layer of 42mm thick cement concrete 1:2:4 (1 cement : 2 coarse : 4 graded stone aggregate 16mm thick nominal size) and top layer of 18mm thick metallic concrete hardener consisting of mix 1:2 (1 cement : 2 stone aggregate 6mm nominal size) by volume & mixed with metallic hardening compound of approved quality @ 3 kg/m2 including cement slurry and rounding off edges.

The flooring in Bidder’s room, loading/unloading bay, MCC cum Panel room shall be in 25mm thick Kota stone slab of approved shade and pattern and placed over 20 mm thick base of cement mortar 1:4 to give overall thickness of 45 mm. Half tile skirting shall also be provided in these areas.

Toilet areas shall have 450 mm x 450 mm x 25 mm thick polished Kota stone tiles placed in cement mortar 1:4 to give an overall thickness of 50 mm. 2100 mm high dado, in 150 mm x 150 mm x 6 mm thick glazed tiles (approved make, shade and pattern) placed in cement mortar 1:3 shall also be provided in these areas.

The flooring along with skirting in administration cum laboratory building shall be 20 mm thick mirror polished, machine cut granite slab of approved shade and pattern placed in cement mortar (1:4). 150mm high skirting shall be provided in these areas. Granite stone shall be provided for laboratory platforms fixed over double sandwiched cuddappa support as directed and the edges of granite is to be embedded into the wall.

The toilet facilities shall include at least:

a. 1 Nos. Water closets with white porcelain Orissa pan minimum 580 mm long with low level flushing cistern of 10 litres capacity.

b. 2 Nos. urinals of sizes 600 mm x 400 mm x 300 mm flat back type in white porcelain

separated by a marble partition of size 680 mm x 300 mm.

c. 1 Nos. wash basins of size 510 mm x 400 mm in white porcelain with inlet, outlet and overflow arrangements.

Page 231: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

16 of 267

d. 1 Nos. mirror of size 400 mm x 600 mm wall mounted type fitted over wash basins.

e. 1 Nos. plastic liquid soap bottles

f. 1 Nos. chromium plated brass towel rails minimum 750 mm long.

g. All stopcocks, valves and pillar cocks shall be heavy duty chromium plated brass.

h. All fittings such as `P’ or `S’ traps, floor traps, pipes, down take pipes etc.

The sewage from toilet blocks shall be led to the septage storage tank included under this contract

All staircases shall have 25 mm thick chequered mosaic tiles for treads and 25 mm thick plain mosaic tiles for risers of approved make and shade and half tile skirting set in cement mortar in 1:4 to give an overall thickness of 50 mm.

All concrete stairs shall have aluminum nosing over 2 mm thick rubber strip of width same as nosing for the full length of the tread. Nosing shall be fixed with countersunk screws. Stairways shall be provided to permit access between different levels within buildings. Staircase shall be minimum 1000mm wide unless specified otherwise. Staircases in general shall not be steeper than 40°. Staircases having space constraints may be steeper than 400. The maximum vertical run for a single flight of stairs shall be 3.0 M.

All roof tops and overhead tanks shall be made accessible with ladder provision. Vertical step ladders fitted with landing point extensions will be permitted where considered appropriate by the Engineer to access areas not frequently visited.

Steel staircases shall be constructed of standard channel stringers with M.S. grating treads 25mm thick with non skid nosing. Steel Ladders shall be minimum 600mm wide and shall not exceed 6m of straight run. The ladders shall be painted with epoxy paint.

All hand railing shall be provided with G.I “C” Class Pipe confirming to latest Indian standards. The minimum height of hand railing shall be 1m.

The reinforced concrete roofs shall be made waterproof by application of an approved roof polythene / bitumen membrane / brick bat coba. The finished roof surface shall have adequate slope to drain quickly the rain water to R.W down take inlet points.

All roof floors shall have minimum 750 mm height solid concrete block parapet wall where accessible is provided and shall have minimum 300 mm height solid concrete block parapet wall where accessible is not provided.

For roofing drainage, cast iron or uPVC rainwater down takes with C.I. bell mouth or u PVC bend and C.I. or uPVC grating at top shall be provided. For roof areas up to 40 sq m minimum

Page 232: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

17 of 267

two nos. 100 mm diameter down take pipes shall be provided. For every additional area of 40 sq m or part thereof, at least one no. 100 mm dia. down take pipe shall be provided.

Top surfaces of chajjas and canopies shall be made waterproof by providing a screed layer of adequate slope or application of an approved roof membrane and sloped to drain the rain water.

Building plinth shall be minimum 450 mm above average finished ground level around building or high flood level whichever is more.

All doors, windows, rolling shutters shall have lintels above. Chajja protection to lintels on external walls shall be such as to prevent the rain water splashing into the building. Chajja projection of minimum 750 mm for rolling shutters, 600 mm for doors and 450 mm for windows shall be provided to prevent the rain water splashing into the building. Chajja shall be projected 150 mm on either side from size of doors/windows/rolling shutters. All windows and ventilators shall have 25 mm thick Kota stone sills bedded in cement mortar (1:3).

All doors and windows shall be painted with two coats of synthetic enamel paint over a priming coat (ready mixed Zinc Chromate Yellow primer of approved brand and manufacturer confirming to I.S.: 127-106, 341 and 340).

All doors, windows and ventilators shall be made of aluminium confirming to latest version of IS: 1948. All fixtures for doors, windows and ventilators shall also be of aluminum. Aluminum grills shall be provided in all the windows. Doors shall be in two panel and both panels shall be glazed/unglazed. Minimum weight of aluminum doors & windows shall be as follows

1. Single Glazed Window : (Weights indicated shall be aluminum) Open able Outer Frame: Weight 0.70 kg/Rmt Shutter Frame: Weight 0.97 kg/Rmt Intermediate Mullion: Weight 0.97 kg/RMt. Beading: Weight 0.31 kg/Rmt Fixing Louvers windows/ventilators Outer Frame: Weight 0.46 kg/Rmt

2. Double Glazed Window Outer Frame: Weight 0.72 kg/Rmt Shutter Frame: Weight 0.97 kg/ Rmt Intermediate Mullion: Weight 0.98 kg/ Rmt Beading: Weight 0.31 kg/ Rmt

3. Sliding Windows Bottom & Top Frame: Weight 0.70 kg/m Shutter Frame: Weight 0.42 kg/m Interlocking Section: Weight 0.47 kg/m

Page 233: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

18 of 267

4. Aluminum Door Outer Frame: Weight 2.508 kg/Rmt Shutter Frame: Weight 2.508 kg/Rmt Bottom Stile: Weight 2.508 kg/Rmt Glazing shall be 5.5 mm thick glass.

a) Openings of the windows & ventilators shall be minimum 25% of the external wall area.

b) Ventilator shall be provided where height of floor is more than 3m.

c) All windows and ventilators shall have wire mesh. Frame of doors, windows and ventilators

shall be of aluminum of standard rolled section. Doors, Windows and Ventilators shall be of size as per schedule to be submitted by the Bidder for approval of Engineer. The minimum size shall be as per below:

a. Door of opening size 1.2m x 2.1m b. Door of opening size 0.75m x 2.1m for toilets c. Glazed widows of minimum size 1.2m x 1.2m d. Ventilators of minimum size 0.6m x 0.6m

d) Rolling shutters shall be made of 80 x 1.25 mm MS laths. Rolling shutter shall be of

minimum size 3m wide x 3.0m high. Rolling shutter shall be provided in MCC cum panel room, chlorine toner shed, at entry and exit of the pump house for access to pumps, motors, valves, panels and as wherever required.

e) All concrete channels and ducts used for conveying liquid shall have inside finish of type F2. The width of concrete channels shall not be less than 500 mm. All open channels shall be provided with Stainless Steel Type 304 hand railings or concrete walls to a minimum height of 1 m from the access surface elevation. All concrete surfaces of structures conveying raw sewage or primary effluent shall be protected with Epoxy Coating as specified in Clause 10.21.

f) Kerbs to be provided below the hand railing on the catwalks/pathways should be as per relevant sections of Factory Act. It shall not be less than 150mm.

g) All exposed surfaces of inserts embedded in concrete shall be painted with two coats of enamel paint over one coat of red oxide zinc chrome primer. Surfaces in contact with concrete shall not be painted.

h) All structural steel members shall be painted with two coats of enamel paint over one shop and one field coat of red oxide zinc chrome primer.

i) All rooms in the treatment plant buildings shall be provided with appropriate sign boards indicating the function of the rooms involved written in Marathi and English Languages.

Page 234: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

19 of 267

j) The design of buildings shall reflect the climatic conditions existing on site. Process buildings shall as far as is possible permit the entry of natural light , and the use of glazed panelling shall be kept to a minimum and preference given to wall openings protected by weather canopies.

k) Emergency exit doorways shall be provided from all buildings in order to comply with local and international regulations .Stairways and paved areas shall be provided at the exit points.

l) Toilet blocks in process buildings and control blocks shall be provided with a sink with two drinking water taps of 20 mm size with adequate inlet and outlet connections.

m) All the walkways in shall have minimum 1 m width and shall be covered with mosaic tiles. n) Hand railings shall be made up of G.I “C” Class Pipe confirming to latest Indian standards. o) For structures containing water or process liquid, the top of the wall shall be at least 0.5m

higher than the maximum water surface level calculated at high flood level and peak plant flow. The top level of internal plant roads and approaches shall be at least 0.5m above the site High Flood Level.

p) If the High flood level is more then Ground Level then road shall be constructed on the earthen embankment. Earthen embankment shall be constructed with side slope of atleast 2 horizontal to 1 vertical. Stone pitching shall be provided at both sides of the embankment as per IS: 8237. Top width of embankment shall be taken as 6.0m. Top level of embankment shall be 0.5m above high flood level. Excavated earth from the plant can be used for embankment construction and if required, extra earth can be borrowed from the borrow pit as approved by Engineer.

4.2 Roadways, Pathways & Hard standings

a. A comprehensive network of roadways shall be provided around the treatment plant to link in with the existing road network and permit access to the plant for necessary maintenance, delivery of consumables and personnel access. All roads shall be of asphalt macadam and minimum 3.5 meters wide. Vehicular access shall be provided for all Plant structures and buildings. All roads shall be provided with drainage and shall be constructed to prevent standing water.

b. Paved pedestrian access ways shall be constructed to provide a network of logical routes interlinking plant areas. Damage to any existing roads on account of their use by the Bidder shall be made good to the satisfaction of the Engineer.

c. Hard standing areas with shading facility shall be provided to permit the parking of vehicles involved in the delivery of consumables from blocking site roadways during unloading or loading. The road system shall be designed such that vehicles involved in the delivery of consumables can follow a continuous route through the works and out again.

5 Site Drainage

The Bidder shall provide a site drainage system. The system shall comprise of the following:

Page 235: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

20 of 267

Storm Water Drainage Foul Drainage

5.1 Storm Water Drainage Storm water drains adjacent to the existing and proposed roads (under this Contract) shall be

sized for a rainfall intensity of 50 mm/hr, allowing for 100% runoff. Drains adjacent to roads shall be in stone masonry in CM (1:4) of appropriate thickness, topped with 75 mm thick M10 concrete and internally flush pointed in cement mortar (1:4), 20 mm thick. The minimum width of drain shall be 450mm.

The storm water drainage system shall also be designed to cater the run-off from the existing plot

areas and structures, if necessary depending upon the site topography.

5.2 Foul Drainage (a) The foul drainage system shall accept discharge from toilets, washrooms, offices and the

laboratory. The foul drainage system shall be conveyed to a new septic tank shall be constructed and outlet to be connected .the septage storage tank proposed under this contract.

6 Cable and Pipe work Trenches

(a) Cable and pipe work trenches shall generally be constructed in reinforced concrete. However, 500 mm x 500 mm size or smaller trenches, not on fill may be constructed in 200 mm thick solid cement concrete blocks over 150mm thick M 15 PCC base. The trenches will be 20mm thick plastered internally with cement mortar (1:4) and externally in cement mortar (1:3).

(b) All floor cut-outs and cable ducts, etc. shall be covered with M20 precast concrete covers (Heavy Duty) or MS grating as per direction of Engineer in outdoor areas and M.S. chequered plates, suitably painted of adequate thickness in indoor areas. All uncovered openings shall be protected with hand railing. The pipe, cable trenches shall be suitably sloped to drain off rainwater to a suitable location.

(c) Layout of trenches outside the buildings shall allow space for construction of future trenches where necessary with due consideration for planning for future developments. This aspect shall be brought to the notice of the Engineer while planning the works.

7 Pipes and Ducts

(a) R.C.C ducts for drainage shall have minimum 1 metre pre-cast cover (M20 concrete, Heavy duty) while laid under roads. Access shafts of size not less than 600 mm x 1000 mm shall be provided.

Page 236: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

21 of 267

(b) All drains (except storm water drains adjacent to roads) shall be covered and designed structurally for appropriate loads.

8 Main Gate

(a) Proposed treatment plant shall have minimum one main gate to access the plant irrespective of existing gate at the premises of existing plant site. Minimum width of main gate shall be 6m. Main gate shall have 1.5m wide wicket gate. Main gate shall have as external framework of GI pipes and internal framework of MS flats. Gate shall be fixed on RCC columns. The design and pattern of gate with drawing shall be submitted for approval of the Engineer. The gate shall have all necessary hinges, locking arrangement, rolling arrangement and painting complete, as approved by the Engineer.

9 Landscaping

(a) The site shall be landscaped once the Works are substantially complete. Landscaping area shall be marked in the layout plan of STP.

(b) Landscaping shall include planting of suitable trees and development of lawn/grassed areas. Landscaping in general shall meet ecological and environmental conditions of the site. Road widths shall determine the size of the tree height and spread to be selected for planting. Trees suitable for local conditions shall be selected as approved by the Engineer. Medicinal and fruit trees shall be avoided. Landscaping shall be maintained in good condition till the completion of the contract.

10 Tree Planting

(a) Pits dug a few days in advance of actual planting shall be allowed to weather and be filled with top soil mixed with manure. Size of the pit shall be as per standard requirement. Only one tree shall be planted in each pit. A guard made of bamboo with wire mesh or bricks or M.S. ring as approved by Engineer, shall be provided.

11 EARTH WORK AND EXCAVATION

11.1 General

Applicable provisions of Conditions of contract shall govern work under this section. The Bidder shall report any water conditions encountered and will be given directions as to the type of procedure to be adopted in such cases. The Indian Standards wherever referred to herein shall be the latest edition of such Standards.

Page 237: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

22 of 267

11.2 Excavation for Foundation, Trenches, Pits, etc.

All foundation trenches shall be excavated to the full-widths and depths shown on the drawings or to such greater or smaller depths as may be found necessary or so ordered to him.

Should any excavation be taken down below the specified levels, the Bidder shall fill in such excavation at his own cost with concrete as specified for foundations, well rammed in position until it is brought up to the level.

The Bidder shall notify to the Executive Engineer when the excavation is completed and no concrete or masonry shall be laid until the Executive Engineer has approved of the soil for each individual footing, rafts, etc.

The Bidder shall keep the site clear of water at all times. To this end he shall provide arrangements for building or pumping of water as required.

All foundation pits shall be refilled to the original surface of the ground with approved material, which shall be suitably consolidated.

No extra will be paid for bailing out water collected in excavation due to rains, ordinary springs etc.

11.3 Earth Filling

The space around the foundations in the trenches or sites shall be cleared of all trash and loose debris and filled with approved excavated earth, all clods being broken. Filling shall be done in 200 mm layers; each layer to be moistened and well rammed. This shall be done in step with the foundation masonry or foundation concrete work the difference between the tops of masonry and filling not exceeding a day’s work. The top of filling shall be finished off 150 mm above ground level to allow for settlement only pit or depressions occurring within twelve months of completion shall be filled up and rammed by the Bidder or his own expense.

11.4 Shoring, Planking & Shuttering

Shoring shall be done when sides of excavation do not stand up by themselves and sloping or stepping is not feasible or economical.

The shoring shall consist of vertical planks 38 mm to 50 mm thick and of Available width and required length. The planks shall be held by walling, vertical places and struts, and this to form a frame. The struts shall be not more than 1.5 m. apart, and the timber shall be sufficiently strong not to wrap.

The planks shall be held tight by means of wedges between them and walling. The planks shall be driven in by cutting the earth beneath their toes or driving each plank separately after removing the wedges. The planks shall be driven in vertically and shall be set touching one another.

Page 238: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

23 of 267

11.5 Wet Foundation:

As soon as water is encountered in foundations, a sump shall be dug for removing the water. The bottom level of this sump shall be kept 500 mm or more below the lowest level of the excavation. The difference between the levels of the bottom of the excavation and of the sump shall be kept constant as excavation depth is increased. If the excavation is to be taken to a substantial depth and a large quantity of water is encountered, two sumps shall be excavated and deepened alternatively so that the pump does not require to be stopped whilst the sump is deepened.

11.6 Earthwork in Site Leveling

All materials required for the purpose of filling shall be taken from high areas and stockpile, which are to be leveled to specified reduced level as required. Roots, sods, wood or other organic matter shall not be placed in the fill. Before a new layer is laid the existing ruts or other unevenness in the surface of the layer shall be removed and the surface of the layer shall be scarified and roughened by borrowing and ploughing to obtain bond with the material to be placed. The materials shall be placed continuous horizontal layers not greater than 200 mm thickness. The earth fill shall be kept slightly sloping from center to the edges to avoid formation of pools during the rain.

12 CONCRETE

12.1 General

Applicable provisions of Conditions of Contract shall govern work under this section.

All concrete work, plain or reinforced shall be carried out in strict accordance with this specification and any working drawing or instructions given from time to time to the Bidder. The Bidder’s rates shall allow for wastage in all materials as well as for all tests of materials and for concrete.

No concrete shall be cast in the absence of the Executive Engineer’s representative or any other person duly authorized by him. The Bidder’s Engineer shall personally check that both the formwork and reinforcement have been correctly placed and fixed, and shall satisfy himself that all work preparatory to the casting is completely ready, before calling the Executive Engineer’s representative for final inspection and approval and for which purpose at least 24 hours’ notice shall be given by the Bidder. The Indian Standards wherever referred to herein shall be the latest edition of such Standards.

12.2 Cement

Cement shall be ordinary Portland cement as per I.S. 269 or Sulphater Resistance Cement as per IS 12330.Cement tests shall have to be carried out at Bidder’s expense as and when directed.

12.3 Aggregate

Page 239: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

24 of 267

The fine and coarse aggregate shall conform to IS : 383 & IS : 456. The necessary test indicated in IS – 383 and IS – 456 shall have to be carried out to ensure the acceptability and shall meet prior approval of the Executive Engineer.

12.4 Reinforcement

The reinforcement conforming to latest relevant Indian Standards shall be of tested quality. It shall also comply with relevant part of IS. 456. All the reinforcement shall be clean and free from dirt, oil, paint, grease, mill scale or loose or thick rust at the time of placing. The reinforcement shall be bent to the shapes shown on the drawings prior to placing and all bars must be bent cold. The Steel shall be placed in such a way that it is rigidly held in position while concrete is being cast. The correct clearance from the form shall be maintained by either precast mortar blocks or by metal supporting chairs to be supplied by the Bidder free of charge. The intersections of rods crossing one another shall bound together with soft pliable wire No. 16 S.W.G. at frequent intervals so that reinforcement will not be displaced during the process of depositing concrete. The loops of binding wire should be tightened by pliers.

12.5 Water

Water shall conform to IS: 456, clean and free from alkali, oil or injurious amounts of deleterious material. As far as possible, the water should be of such quality that is potable. If any chemical analysis of the water is necessary and ordered the same shall be got done at approval laboratory at the Bidder’s expense.

12.6 Concrete Proportioning

The concrete proportion shall be as indicated on the approved drawings and shall conform to IS: 456.

The minimum cover to main reinforcement shall be 25 mm or the diameter of the bar whichever is greater. In the case of surfaces exposed to corrosive action as in sumps, the cover shall be increased up to 50 mm as directed.

Type of joints, spacing of joints, use of all jointing materials and other features pertaining to the provision of movement joints in liquid retaining structures shall be got approved prior to commencement of construction. All reinforced concrete work shall be thoroughly and efficiently vibrated during laying by use of vibrators.

For liquid retaining structures M:30 grade shall be used, the same shall be deemed to be satisfactorily watertight if the external faces show no signs of leakage and remain apparently dry over the period of observation of 7 days after allowing a period of 7 days for absorption after filling. Covered tank, where all faces are not accessible for inspection, shall be kept filled with water for 7 days and thereafter the drop of water over the next 7 days shall not exceed totally a depth of 12.5 mm per day.

Approved corrective measures, if necessary, shall be undertaken by the Bidder at his own expense. The Bidder shall use appropriate water proofing compound during the process of pouring of concrete in required proportion.

Page 240: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

25 of 267

12.7 Workmanship

All concreting work shall be carried out according to the IS: 456 ‘Indian Standard Code of Practice for Plain and Reinforced Concrete for general Building Construction’. It should, however, be note that for Over 60 m3 of concrete placed or for every one day’s work a minimum of 6 (six) cubes shall be cast for test purposes and tested at the Bidder’s expense in an approved laboratory.

12.8 Formwork

The formwork shall conform to IS: 456. 12.9 Curing

The concrete shall be cured according to IS: 456 or as directed. 12.10 Concrete Finish:

The concrete surface on removal of form work shall be such that no finishing is necessary if however the surface is not satisfactory, the Bidder shall if so instructed, remove unwanted projecting parts by chipping and smoothen the surface with cement rendering at his own expense.

12.11 Construction Joints / Water Stops

These shall be in accordance with IS: 456 or as shown on the approved drawings.

The centering for forming, the construction joint shall be firmly fixed and adequately slotted for reinforcement extending beyond the joint. If any concrete has set, care shall be taken not to disturb the reinforcing steel in casting the second half of a member with a construction joint and thereby crack the concrete previously placed.

The PVC joints shall be of the ‘rebated’ or ‘keyed’ type and shall have a minimum width of 300 mm inclined ‘feather’ or ‘straight joints’ shall not be permitted. The Joints/Water stops shall be got approved by the Engineer before their placement into the structure.

12.12 Expansion Joints

Expansion joints shall be provided at positions shown on the approved drawing or as directed and shall comply strictly with the details shown on construction drawings. Reinforcement shall not extend across any expansion joint and the break between the two sections MUST be complete. Unless otherwise specified, the gap shall be filled with an elastic joint filler consisting of the following ingredients (by weight), preheated to a temperature of 190 (375 F).

a) Very find sand 60%

b) Hot bitumen emulsion 33%

c) Cement 5%

d) Fine chopped hemp 2%

12.13 Bidder’s Supervision

Page 241: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

26 of 267

The Bidder shall provide constant and strict supervision of all the item of construction during progress of work, including the proportioning and mixing of the concrete and bending and placing of reinforcement. Before any important operation such as concreting or stripping of formwork is begun, adequate notice shall be given.

12.14 Laying Cement Concrete in Foundations & Under Floors

Before laying the concrete, the bottom and sides of the trench up to the proposed height of the concrete shall be moistened. The concrete shall be tamped immediately after laying.

12.15 Protective Epoxy Paint Treatment:

Epoxy Paint of standard specifications manufactured/purchased from a reputed firm such as ASIAN PAINTS/BRITISH PAINTS/JENSON-NICHOLSON or approved by IS shall be applied to the outside Concrete surface of R.C.C. Underground sump and all mild steel works within and near the sump. The coverage capacity of layers shall be at 125 Microns D.F.T. 7.60 sq. mt. /Liter. .(Exposed steel inserts, embedded in concrete and ladders, submerged in water shall be provided with epoxy paint 360 microns)

12.16 Chases, Holes, Recesses and Inserts:

All chases, holes and recesses for foundation bolts, various services and other requirements must be formed as shown on the drawings or as directed by the Executive Engineer during the execution of the work, without extra charge. The Bidder shall fix all necessary inserts in the concrete for support of hangers for pipes and cables, ceiling clamps for lights and fans or for duct etc. If any of the inserts are to be supplied by other agencies not extra payment will be made to the Bidder for placing the inserts position.

12.17 Load Testing of Structures

Load tests shall be carried out in accordance with IS: 456, if required by the Design Build Engineer /Executive Engineer.

12.18 TESTING AND COMMISSIONING

Testing at site

All water retaining structures shall be tested before commissioning and trial run as per the specifications in CPHEEO Manual on Sewerage and Sewage treatment (latest edition) and as per relevant IS Cdoe. All the structures are to be checked for water tightness and the sole responsibility of arranging the necessary equipments and apparatus lies with the Operator at his own cost. Any damage during testing shall be Operator’s responsibility and shall be rectified by him free of cost. Water for testing shall be arranged by the Operator at his own cost.

13 BRICK WORK 13.1 General

Applicable provisions of Conditions of Contract shall govern the work under this section. The Bidder shall build the whole of brickwork shown on the drawings with first-class bricks in cement mortar. The Indian Standard wherever referred to herein shall be the latest edition of such Standards.

Page 242: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

27 of 267

13.2 Materials

Bricks The bricks used shall generally conform to IS: 1077

Cement The cement used shall conform to IS: 269

Sand The sand used shall conform to IS: 1344

Water The water used shall be clean and free from injurious amounts of deleterious materials. As far as possible, the water should be of such quality that it is potable

13.3 Mortar Proportion

Unless otherwise specified, the proportions of cement-sand-mortar by volume for various classes of work shall be as under:

Type of work Cement Sand

Ordinary brickwork for building 1 5

Brickwork in pillars 1 4

Half-brick thick or brick-on edge partition wall 1 4

13.4 Workmanship

The cement and sand shall be thoroughly mixed dry in specified proportions. Water shall then be added by a sprinkler just sufficient to make a stiff and workable paste. The mortar shall be used within half an hour of mixing. The mortar, which is unused within half an hour of mixing, shall be removed from the site.

13.5 Brick-work

All the bricks shall be kept in water till they are completely soaked & only thoroughly soaked bricks shall be used in the work.

The Bidder shall set out & build all brickwork to the respective dimensions, thickness and height, as shown on the drawings.

The Bidder shall build all brickwork uniformly, no one portion being raised more than 1 meter above another at one time.

Page 243: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

28 of 267

The Bidder shall keep wet all brickwork for at least 10 days after laying. The surface of unfinished work shall be cleaned and thoroughly wetted before joining new work to it.

In curved brickwork, the bricks shall be dressed to shape obtain joints redial to the curve. The joints shall not exceed 12 mm in thickness and should extend the full thickness of the curved brickwork.

13.6 Damp-proof Course

Damp-proof course shall be provided at positions where ever necessary. In masonry walls of buildings, it shall normally be placed above the external ground level. It shall be laid for the full width of solid walls and shall be prepared as specified.

A layer of cement concrete 1:2:4 (cement: sand: coarse aggregate) mix, and of specified thickness shall be provided.

If a damp-proof course requiring the use of bitumen felt is specified, bitumen used shall conform to IS: 1322 and workmanship shall conform to IS: 1609.

All exposed surface of the damp-proof course shall be finished fair and smooth. The external edge shall be chamfered if specified, and shall be finished flush with masonry surface.

14 FLOORS AND PAVEMENTS

14.1 General

Applicable provisions of Conditions of Contract shall govern work under this section. The Indian Standards wherever referred to herein shall be the latest edition of such standards.

14.2 Types of Floors and Pavements

The principal types of floors and pavements considered in this specification are as under:

a) Cast-in-situ artificial stone flooring (plain)

b) Natural stone slab flooring

c) Pre-cast artificial stone flooring (Plain/Textured)

14.3 Materials

• Cement

Ordinary Portland cement and white and colored cement shall conform to IS: 269. • Lime

Where lime is required to be used, it shall conform to IS: 712 and slaking of lime shall be done according to IS: 1635.

Page 244: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

29 of 267

• Aggregates

The aggregates shall conform to IS: 383. Fine aggregates shall range in size from 1.5 mm to 6 mm. unless specified otherwise. Not more than 5 percent of grains shall pass IS sieve 15 (0.151 mm mesh) and not more than 10 per cent shall pass IS sieve 30 (0.296 mm mesh).

Coarse aggregate shall all pass through 19 mm mesh, unless specified otherwise and shall be graded as directed. The coarse aggregate for concrete pavements for approaches and driveways shall all pass through 25 mm ring and shall be formed by mixing 80% of 25 mm to 12 mm size and 20% of 12 mm to 6 mm size. The above proportion shall be altered to suit workability if so approved.

• Natural Stone Slabs

The stone slabs if used shall be best quality obtainable from Neemuch, Kotah, Shahabad, Tandur or other places as specified and shall be hard, even durable, uniform in color and free from cracks, flakes and other defects. No stone shall be thinner at its thinnest part than 25 mm. unless otherwise specified; the stones shall be 300 mm x 300 mm in size dressed square and with straight edges. The top surface of stones shall be smooth or polished as specified and edges dressed to a true fir or chisel dressed as directed.

• Water

Water shall be clean and free from injurious amounts of deleterious materials. As far as possible, water shall be of potable quality.

14.4 Cast in situ Artificial Stone Flooring

Grey and colored artificial stone is to be composed of 4 parts of fine stone chips 12 mm and below 2 parts of sand and properly screened to one part of cement. The topping in all cases and to consist of clean and fine sand and cement (2:1) and sufficient skin thickness to be kept and finally trowelled with neat cement finish perfectly smooth to satisfaction. In the case of dados and skirting the total thickness is to be 19 mm of which the bottom layer is to be 12 mm and the toping 6 mm thick in all cases both the layers are to be laid simultaneously without hiatus so that it will in effect be one complete layer; the mixing be made in two different lots.

14.5 Natural stone slab flooring

The stone slabs shall be evenly and firmly bedded to the required level and slopes as directed. Unless otherwise specified, the thickness of joints shall not exceed 6 mm for unpolished stone slabs and 1 mm for polished stones. The joints shall be raked out to an adequate depth and pointed flush or slightly sunk, as directed, with cement-sand mortar of 1:2 proportions. The stone slabs shall be laid to pattern which shall be approved prior to ordering the stones. The flooring shall be kept wet with wet

Page 245: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

30 of 267

sand or water for at least seven days. The flooring shall be well washed and shall be perfectly clean and free from all mortar stains etc. when completed

15 PLASTERING AND POINTING

15.1 General

Applicable provisions of Conditions of Contract shall govern work under this section. The Indian Standards wherever referred to herein shall be the latest edition of such Standards.

15.2 Cement Plaster Materials

• Cement : Cement shall confirm to IS: 269. • Sand : Shall confirm to IS: 1542.

Other materials, tools and Accessories, they shall confirm to relevant IS codes listed above and to the requirements specified in IS: 1661.

15.3 Proportioning and thickness of Cement Plasters:

The proportions of materials, number of coats and thickness of each coat shall be as a specified or as directed.

15.4 Workmanship

Unless otherwise specified, all plasterwork shall be carried out as per IS: 1661 “Code of Practice for Cement and Cement-Lime Plaster Finished on Walls and Ceilings”.

Special finishing textures to the plaster shall be executed according to Clause 16 of IS: 1661 and/or as directed.

15.5 Curing

After the completion of the work, the pointed face shall be kept well wetted for at least for 10 days in the case of Cement Pointing.

16 PAINTING AND GLAZING

16.1 General

Applicable provisions of Conditions of Contract shall govern work under this section. The Indian Standards wherever referred to herein shall be the latest edition of such standards.

Painting of Iron and Steel Work

Painting of iron and steel work shall generally be carried out as per IS: 1447 (Part I).

16.2 Preparation of Surfaces:

Page 246: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

31 of 267

The surface to be painted shall be cleaned free of dirt, oil rust, mill scale and be thoroughly dry before painting. Cleaning, degreasing, and descalling wherever necessary shall be carried out as specified in IS: 1477 (Part I) and the method adopted for surface preparation shall have prior approval.

16.3 Primer Coat:

Unless otherwise specified, the primer coat for steel and iron work shall be of Red Lead paint, conforming to IS: 102. The Red Lead primer shall be applied by means of approved brushes. The Red Lead paint shall be allowed to dry sufficiently hard before the application of the succeeding coat A red lead painted surface shall not however be left exposed permanently, as it is liable to heavy chalking.

The primer coat shall be applied as specified in IS: 1477 (Part-I) and the number of coats shall be as necessary for as directed.

16.4 Finish Coat

The type of intermediate and finish coat and the number of coats to be applied shall be as necessary or as directed. Intermediate and finish coats may be oil bound bituminous, aluminum or other types of paints. Aluminum conforms to IS: 165. The intermediate and finish coats for structural steel work, sheet metal work and cast iron work shall be applied as specified in IS: 1477 (Part-I).

17 Glazing Materials

17.1 Glass

All glass used in the work shall be best quality glass free from specks, bubbles, smokes, wanes, air holes and other defects, Unless other-wise specified, sheet glass shall be transparent and of the following weights. For panes up to 600 mm x 600 mm in size, glass weighing not less than 7.97 kg/sq.m. shall be used for panes 750 mm x 750 mm to 900 mm x 900 mm size, the weight of glass shall be 9.76 kg/sq.m. Unless other-wise specified, for sizes of glass above 900 mm x 900, plate glass shall be used.

17.2 Putty

Putty for use on wooden frames shall conform to IS: 419 and on metal frames to IS: 420.

17.3 Workmanship

All glass be cut according to the sizes required as per drawings. Glazing of metal doors, windows and ventilators shall conform to IS: 1081 and glazing of timber doors, windows, and ventilators shall

Page 247: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

32 of 267

conform to IS: 1003, unless specified otherwise. For glazing wooden doors and windows, the wooden frame, particularly the rebate, shall be well oiled to prevent oil from putty being sucked in by wood.

The Bidder shall thoroughly clean all glass and replace all putty or glass damaged during the work.

18 MISCELLANEOUS STEEL AND IRON WORK

18.1 General

Applicable provisions of Conditions of Contract shall govern work under this section.

The Indian Standards wherever referred to herein shall be the latest edition of such Standard.

18.2 Iron Grills

The grills for Windows, verandahs, balconies, etc. shall be of mild steel or wrought iron as specified for the work. The design of grills and shapes and sizes of various components shall be as approved. The edges, angles and corners shall be clean and true to shape. The joints shall be mechanically inter-locked and overlapping areas spot welded in such a way that the grill is rigid.

Where molded grills are specified, the molded work shall be as approved, and shall have clean, straight and sharply defined profiles.

The Bidder shall do the necessary cutting, fitting, drilling, tapping, scribing etc. required to fix grills to adjacent surfaces. The grills shall be fixed plumb, in line and level. Unless otherwise specified, grills shall be painted with two coats of red lead paint conforming to IS: 102 before they are fixed.

18.3 Rolling Shutters

Rolling shutters, where specified shall be of the size to suit the openings and shall be positioned as shown on the drawings and/or as directed.

The rolling shutter shall be fabricated from 18 B.G. Steel and machine rolled with 75 mm rolling contras with effective bridge depth of 12 mm lath sections, interlocked with each other and ends locked with malleable cast iron. The guides shall be either rolled or pressed deep channel sections 75 mm deep and 25 mm wide fitted with necessary fittings and fixtures.

The suspension shaft shall be formed from solid drawn seamless tubes 60 mm O.D. of wall thickness of 25 mm in 3 segments coupled 2 with 2 pairs C.I. dog-tailed flange coupling forming one complete unit eliminating deflection in the center to a minimum.

The springs shall be imported high tensile English flat springs 50/60 mm breadth and 1.6/1.8 mm thickness hardened and tempered. These shall be fitted inside the fabricated housing on either ends, which counterbalance the shutter curtain.

Page 248: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

33 of 267

The ball bearings shall be double row self aligning ball bearing fitted inside C.I. housing fixed on side brackets holding the suspension shaft at either end

.The suspension of the curtain shall be belted in specially fabricated cages formed from MS flats, and plates all are welded.

The hood cover shall be made of 20 gauge G.P. sheets with necessary stiffeners and framework to prevent sag, the bottom lock plate shall be made of 3 mm thick M.S. plate and 95 mm wide reinforced with angle/T iron of suitable section with 6 mm dia. M.S.rivets interlocked with last stride of curtain.

The locking arrangement shall consist of hasp and staple on the bottom plate, lockable from both sides.Unless otherwise specified, for overall area of rolling shutters up to 9 sq. m. pull and push type hand-operated shutters shall be used, for area between 9 and 12 sq. m. Pull and Push type shutters shall be provided with ball bearings; for area larger than 12 sq. m. , Mechanical Gear type shutters shall be supplied.

18.4 Collapsible Gates

Collapsible gates shall be of the size and type as specified by the Executive Engineer. The gates shall be manufactured out of M.S. channel pickets of size 20 mm x 10 mm and flats 20 mm x 6 mm. The top runner flat shall be at least 50 mm x 12 mm in section. The bottom guide shall consist of a channel or two angles of specified size laid in the flooring to guide the free movement of the gate. The gate shall move in the guide channel on rollers of adequate size fixed at the top and bottom of the gate as specified. The gate shall be painted with one coat of red lead paint conforming to IS : 102 before fixing in position.

19 WOODWORK AND JOINARY

Materials 19.1 Wood:

All wood required to be used, shall be dry, well-seasoned, Bulsar teak wood and shall be free from knots, cracks or any other kind of defects frames for doors and windows.

19.2 Jointing Materials: All nails, screws, fixtures shall be of standard quality as approved by the Engineer.

19.3 Cutting Edges:

Cutting edge for well to be fabricated as per the drawing approved by Owner’s Design Build Engineer (SMB). The structural steel to be used, should confirm to IS: 226-1961 and IS: 2062-1962. The steel shall be free from defects as mentioned in IS: 226-1962 and shall have a smooth uniform finish. Material shall be free from loose mile scale, rusting or other defects affecting its strength and durability. The test certificates shall have to be submitted for the structural steel used in cutting edge.

Page 249: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

34 of 267

20 Architectural Details of the Building:

Building Storage Room Type

Main Structural Construction

Plinth Height (mm)

Ceiling Height (mm)

Roof Wall Flooring

Doors / Windows Plaster Painting Roof Water Proofing

Ext (mm)

Int. (mm)

door Window

Roll Shutter

Ext. Int. Ceiling

Int. Ext Ceiling

Chlorine House (As required)

Ground Floor

RCC Framed

500 5000 RCC 230 115 Acid/Alkali Tiling /Kota

Teak Acrylic Powder Coated

MS

20mm thk. In CM 1:4

12mm thk. In CM 1:4

6mm thk. In CM 1:3

Oil bound distemper 2m high dado in acid

Cement Paint

White Wash

India Water Proofing on Brickbat Coba or equivalent

Administra - tion cum laboratory (50 sqm)

Ground Floor

Foyer 500 230 115 Vitrified Tiles

Teak Al .Glazed Powder Coated with

Vanishing blinds

20mm thk.In CM 1:4

12mmthk. In CM1:4

6mm thk. In CM 1:3

Luster Paint

Cement Paint

Luster Paint

India Water Proofing on Brickbat Coba or equivalen

Page 250: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

35 of 267

Plant incharge room

Vitrified Tiles

Teak Al. Glazed Powder Coated with vanishing blinds

20mm thk. In CM1:4

12mm thk. In CM 1:4

6mm thk. In CM 1:3

Luster Paint

Cement Paint

Luster Paint

India Water Proofing on Brickbat Coba or equivalent

Staff Room

Vitrified Tiles

Teak Al. Glazed Powder Coated with vanishing blinds

20mm thk. In CM1:4

12mm thk. In CM 1:4

6mm thk. In CM 1:3

Luster Paint

Cement Paint

Luster Paint

India Water Proofing on Brickbat Coba or equivalent

Laboratory

Vitrified Tiles

Teak Al. Glazed Powder Coated with vanishing blinds

20mm thk. In CM1:4

12mmthk. In CM1:4

6mm thk. In CM 1:3

Luster Paint

Cement Paint

Luster Paint

India Water Proofing on Brickbat Coba or equivalent

Toilet Glazed Sintex

Al. Glazed louvers

Oil Paint

Passage Kota/Vitrified

Teak Al.Glazed Powder Coated

Luster Paint

Luster Paint

Page 251: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

36 of 267

Toilet for labourer

1 WC, 1 Bathing, 2Urinal

Page 252: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

37 of 267

21 ROAD & BRIDGE WORKS

21.1 GENERAL

The General Technical Specifications shall be the "SPECIFICATIONS FOR ROAD AND BRIDGE WORKS" (Fourth Revision), as corrected in the original issued by the Ministry of Surface Transport (Roads Wing), Government of India and published by the Indian Roads Congress (IRC), with a cross reference to relevant Bureau of Indian Standards (BIS) for materials or other aspects not covered by the IRC

Roads shall be 3.75 m wide in metalled portion with bituminous carpet and 1.5m berm on either side. The roads should be given suitable camber and longitudinal slopes.

The tenderer should include preparation of 500mm thick sub-grade to the required level and camber, leveling and dressing of the filling and compaction upto 97% of laboratory dry density as per IS : 2720 (Part 8) by vibro roller. The earth of soaked CBR value not less than 5% required for making the roads i/c embankment for access road will be arranged by the Bidder at his own cost if required.

21.2 GRANULAR SUB BASE

21.2.1 Scope: This work shall consist of laying and compacting well-graded

material on prepared sub-grade in accordance with the requirements of these specifications. The material shall be laid in one layer as sub-base to a 150mm thickness as necessary according to lines, grades and cross sections shown on the drawings or as directed by the Engineer.

21.2.2 Materials: The material to be used for the work shall be natural sand, murram, gravel, crushed stone or combinations thereof depending upon the grading required. The gradation is specified below.

Table 21.1: Grading for coarse-graded Granular Sub-base materials

Sieve Designation

75 mm 53 mm

Percentage passing by

weight Grade II--100

26.5 mm 50-80

9.5 mm -

Page 253: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

38 of 267

4.75 mm

2.36 mm

0.425

________ 15-35___________

0.075 mm <10

CBR value 25

21.2.3 Physical requirements: The material shall have a 10 percent fines value of

50 KN or more when tested in compliance with BS: 812 (part 111). The water absorption value of the course aggregate shall be determined as per IS:2386 (part 3); if this value is greater than 2 percent, the soundness test shall be carried out on the material delivered to the site as per IS: 383 for grading II materials, the soaked CBR shall be determined at the density and moisture content likely to be developed in equilibrium conditions which shall be taken as being the density relating to a uniform air voids content of 5 percent and shall not be less than 30%.

21.2.4 Strength of sub-base: It shall be ensured prior to actual execution that the material to be used in the sub-base satisfies requirement of soaked CBR and other physical requirements when compacted and finished. When directed by the Engineer, this shall be verified by performing CBR tastes in the laboratory as required on specimens re-molded at Field dry density and moisture content and any other tests for the quality of materials, as may be necessary.

21.3 WET MIX MACADAM (WMM)

21.3.1 Scope: This work shall consist of laying and Compacting clean, crushed,

graded aggregate and granular material, pre mixed with water, to a dense mass on a prepared sub base in accordance with the requirements of these specifications. The material shall be made in one or more layers as necessary to lines, Grade and cross sections shown on the approved drawings or as directed by the Engineer. Vibrating or other approved types of Compacting equipment shall be used, the compacted depth of single layer of WMM course shall be 150mm.

Page 254: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

39 of 267

21.3.2 Materials: • Aggregates:

a) Physical requirements: Coarse aggregates shall be crushed stone. If crushed

gravel or shingle is used, not less than 90 percent by weight of the gravel or shingle pieces retained on 4.75mm sieve shall have at least two fractured faces. The aggregate shall conform to the physical requirements set forth in table 21.2.

Table 21.2: Physical requirements of coarse aggregates for WMM for sub-base of base Courses

S.NO Test Test Method Requirements

1 Los Angeles Abrasion value IS: 2386 (part 4) 40 percent (max.) or

Aggregate

2 Impact Value IS: 2386 (part4) or IS: 5640

30 % (max.)

3 Combined Flakiness and Elongation indices

IS: 2386(part1) 30 percent (max.)

Total

If the water absorption value of the coarse aggregate is greater than 2 percent, the soundness test shall be carried out on the material delivered to site as per IS: 2386 (part-5).

b) Grading requirements:

The aggregates shall conform to the grading given in Table 21.3.

Table 21.3: Grading requirements of aggregates for WMM

Sieve Designation the IS sieve

Percent passing by weight passing

53mm 100

45mm 95-100

26.5mm -

22.4mm 60-80

Page 255: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

40 of 267

11.2mm 40-60

4.75mm 25-40

2.36mm 15-30

600 Microns 8-22

75 Microns 0-8

Materials finer than 425 micron, shall have plasticity index (PI) not exceeding 6.

The final gradation approved within these limits shall be graded from coarse to fine and shall not vary from the low limit on one sieve to the high limit on adjacent sieve or vice versa.

21.4 DENSE BITUMINOUS MACADAM (DBM)

21.4.1 Scope: This work shall consist of construction, in a single course of 50 mm

thick base course to the following specifications on a previously prepared WMM course with prime coat.

21.4.2 Materials

The bitumen shall be a paving bitumen of penetration grade S65 or A65 as per Indian standards specifications for "Paving bitumen" IS: 73. In case of a non-availability of bitumen of this grade, S90 grade bitumen may be used with the approval of Engineer.

21.4.3 Coarse aggregates: The coarse aggregates shall consist of crushed stone,

crushed gravel or shingle or other stones. They shall be clean, strong, and durable, of fairly cubical shaped and free from disintegrated pieces, organic or other deleterious matter and adherent coating. The aggregates shall preferably be hydrophobic and of low porosity. If hydrophilic aggregates are to be used, the bitumen shall be treated with anti-stripping agents of approved quality in suitable doses. The aggregate should satisfy the physical requirements set forth in table-4 below. If crushed gravel or shingle is used, not less than 90 percent by weight of gravel or shingle pieces retained on IS 4.75 mm sieve shall have a at least two fractured faces. The plasticity index of the fraction passing through the 425-micron sieve shall not exceed 21.4.

Page 256: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

41 of 267

Table 21.4: Physical requirements of coarse aggregates for DBM

S.No.

Test

Test Method Requirements

1 Los Angeles Abrasion value IS: 2386 (part 40 percent (max.)

2 Aggregate Impact Value IS: 2386 (part4) 30 percent (max.)

3 Flakiness and Elongation indices IS: 2386(part1) 30 percent (max.)

4 Coating and stripping of Bitumen coating 95

AASHTOT Minimum retained Percent 182

5 Soundness

i) Loss with sodium Sulphate 5 cycles 12 % maximum

ii) Loss with magnesium Sulphate 5 cycles 15 %maximum

6 Water absorption IS: 2386(part3) 2 percent maximum

21.4.4 Fine aggregates: Fine aggregates shall be the fraction passing 2.36 sieve and

retained on 75 microns sieve, consisting of crusher-run screening, gravel, sand or a mixture of both. These shall be clean, hard, durable, uncoated, dry and free from any injurious, soft or flaky pieces and organic or other deleterious substances.

• Filler: Filler consist of finely divided mineral matter such as rock dust,

hydrated lime or cement as approved by the Engineer. the filler shall be graded within the following limits:

Table 21.5: Grading requirements of aggregates for DBM

Sieve Designation

Percent passing by weight passing the IS sieve

600 Microns 100

300 Microns 95-100

75 Microns 85-100

Page 257: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

42 of 267

The filler shall be free from organic impurities and have a plasticity Index not greater than 4. The plasticity Index requirement shall not apply if the filler is cement or lime. When the coarse aggregate is gravel, 2 percent by mass of total aggregate of Portland cement or hydrated lime shall be added and the percentage of fine aggregate reduced accordingly. Cement or hydrated lime is not required when the gravel is limestone.

21.4.5 Aggregate gradations: The combined course and find aggregates and filler

shall produce a mixture to conform to the grading set for a table-21.6 below.

Table 21.6: Aggregate gradation for DBM

Sieve Designation Percent passing by weight

37.5 mm 100

26.5 mm 90-100

13.2 mm 56-80

4.75 mm 29-59

2.36 mm 19-45

300 Micron 5-17

75 Micron 1-7

• Preparation of Surface

This work shall consist of preparing of existing WMM surface. The work shall be done on such widths as shown in drawings. The existing surface shall be firm, cleaned with mechanical broom and treated with prime coat (@ 0.9kg /sq.m), 24hrs. in advance of laying of DBM course. The laying shall be done with paver finishers and compacted with road roller.

21.5 PREMIX CARPET

Page 258: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

43 of 267

The Dense Bituminous Macadam roads shall be provided with 2cm. thick premixed bitumen carpet surfacing with 1.8cum of stone aggregate 12.5mm nominal size and 0.90 cum of stone aggregate, 10mm nominal size using 144kg of residual petroleum of penetration 60/70 of approved quality per 100 sq.m. and 52 kg of hot bitumen per cum of 12.5 mm nominal size stone and 56 kg of hot bitumen per cum of 10mm nominal size including a tack coat with residual petroleum bitumen of penetration 60/70 of approved quality @ 0.35 kg/sq.m of road surface including consolidation with road roller etc.

Providing and consolidation with road roller seal coat of premixed stone dust with residual petroleum bitumen of penetration 60/70 of approved quality and using 68 kg of residual petroleum bitumen of penetration 60/70 and 0.6 cum of stone dust per 100 sq.m. of road surface complete. The seal coat is to be provided immediately after laying the bitumen carpet layer.

Adequate / classified road roller of 8/10 MT capacity for the use of work as directed by the Engineer-in-Charge shall only be arranged by the Bidder for consolidation. Log books of such road rollers shall be maintained. Maximum quantity of any items to be consolidated by each sprayer or roller / day shall be as under:

i) Prime Coat 3200 sq.m

ii) Consolidation of sub-grade 1860 sq.m

iii) Granular subbase 100 cum.

iv) Wet Mix Macadam 100 cum.

v) Dense Bituminous Macadam 40 cum.

vi) 2 cm. Premix carpet 930 sq.m

For less use of rollers recovery for less roller days shall be made @ Rs. 1000 per day.

Aggregate and bitumen will be mixed in a mechanical mixer of approved type, and will be heated to required temperature as directed by Engineer-in-Charge. Bitumen boiler of suitable design avoiding local heating and ensuring continuous supply will be arranged by Bidder. The Bidder shall maintain a thermometer for measuring the temperature at site of work. The Bidder shall also make the necessary arrangement for weighting the material at site of work.

Fresh supply of bitumen from Bharat Petroleum / Indian Oil / Hindustan Petroleum as approved by Engineer-in-Charge will be arranged by the Bidder and brought to the site of work and stored properly. Receipt for purchase in original as proof of purchase will be submitted to the SMB by the Bidder. No variation in bitumen on lower side shall be

Page 259: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

44 of 267

allowed. In case bitumen used by Bidder is found less than the quantity calculated theoretically, based on the coefficient for bitumen consumption given in CPWD/R&B specification or as decided by the Engineer-in-Charge for the items for which coefficient are not available in CPWD/R&B specification. The cost of bitumen not so used shall be recovered from the Bidder.

21.6 QUALITY CONTROL

For quality control of road works following table 21.7 and 21.8 shall be used for frequency of tests:

Tests on Earthwork for Embankment, Sub-grade Construction and Cut Formation

21.6.1 Borrow material: Grid the borrower area at 25 m c/c(or closer, if the

variability is high) to full depth of proposed working. These pits should be logged and plotted for proper identification of suitable sources of material. The following test on the representative samples shall be carried out:

a) Sand Content [IS: 2720 (Part-4)]: 2 tests per 3000 cubic meters of soil.

b) Plasticity Test [IS: 2720 (Part 5)] : Each type to be tested, 2 test per 3000 cubic

meters of soil.

c) Density Test [IS: 2720 (Part-8)] : Each soil type to be tested, 2 test per 3000

cubic meters of soil.

d) Deleterious Content Test [IS: 2720 (Part-27)] : As and when required by the

Engineer.

e) Moisture Content Test [IS: 2720 (Part-2)] : One test for every 250 cubic

meters of soil.

f) CBR Test on materials to be incorporated in the sub grade on

soaked/unsoaked samples [IS: 2720 (Part-16)]: One CBR test for every 3000

cubic metre at least or closer as and then required by the Engineer.

21.6.2 Compaction control: Control shall be exercised on each in their by taking at least one measurement of density for each 1000 square meters of compacted area, or closer as required to yield the minimum number of test results for evaluating a day's work on statistical basis. The determination of density shall be in accordance with IS: 2720 (Part- 28).

Table 21.7– Control Tests and their minimum frequency for sub-base & base (excluding bitumen bound bases)

Page 260: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

45 of 267

S.No

Type of Construction

Test

Frequency(min)

1. Granular a. Gradation One test per 200 m3

b. Atterberg limits One test per 200 m3

c. Moisture content prior to compaction

One test per 250 m2

d. Density of compacted One test per 500m 2

e. Deleterious constituents As required

f C.B.R As required

2. Wet Mix 200 m3 Aggregate Impact Value One test per of aggregate

Grading One test per 100m3 of aggregate

Flakiness Index and Elongation Index

One test per 200 m3 of aggregate

Atterberg limits of portion of aggregate passing 425 micrion sieve

One test per 100 m 3 of binding material

Density of compacted layer One test per 500 m3

Table 21.8 – Control Tests and their minimum frequency for bituminous works

S.NO. Type of

Construction

Test Frequency (min.)

1. Prime Coat

/ Tack Coat

(i) Quality of binder Two samples per lot to be

subjected to all or some tests as directed by the Engineer

(ii) Binder temperature for application

At regular close intervals

(iii) Rate of spread of Two tests per day

Page 261: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

46 of 267

2. Seal Coat

/ Surface

Dressing

(i) Quality of binder Two samples per lot Dressing to be subjected to all or some tests as directed by the Engineer

(ii) Aggregate Impact Value

One test per 50 m3 of aggregate

(iii) Flakiness Index and

Elongation Index

-do-

(iv) Stripping value of

aggregates

Initially one set of 3 representative specimens for each source of supply. Subsequently when warranted by changes in the quality of aggregates.

(v) Water absorption of

aggregates

-do-

(vi) Grading of aggregates One test per 25 m3 of aggregate

(vii) Stone polishing value As required

(viii) Temperature of binder

at application

At regular close intervals

(ix) Rate of spreading of

materials

One test per 500 m2 of work

3. Dense

Bituminous

Macadam /

(i) Quality of binder Two samples per lot to be

subjected to all or some tests as directed by the Engineer

(ii) Aggregate Impact Value

One test per 50 m3 of aggregate

(iii) Flakiness Index and

Elongation Index

One test per 200 m3 of aggregate

(iv) Atterberg limits

of portion of One test

per100 m3 of binding

Page 262: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

47 of 267

material aggregate

passing 425 micron

(v) Density of compacted

layer

One test per 500 m3

21.6.3 Acceptance Criteria:The acceptance criteria for test shall be subject to the

conditions that the mean value is not less than the specified values plus [1.65 – 1.65/(No. Of Samples)0.5 times the standard deviation.

21.7 ILLUMINATION:

All internal and external areas shall be provided with lighting. The illumination levels to be achieved shall be as follows:

AREA

LUX.

Office and labs 300 Lux

Switchgear Room 200 Lux

Control Room 300 Lux

Pump House 200 Lux

DG set room 200 Lux

Chemical and general store 150 Lux

Chemical Plant room 200 Lux

Other indoor areas 100 Lux

Outdoor plant from and 50 Lux

Building entrance 100 Lux

Indoor Plant Area 200 Lux

Page 263: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

48 of 267

Outdoor Plant Area 50 Lux

Transformer Area 100 Lux

Roads 10 Lux

Fluorescent luminaries shall be used primarily for internal lighting. High pressure vapour or metal halide type luminaries shall be used in indoor application where their use is appropriate. If mercury or metal halide is used in indoor then they should be supplemented with fluorescent luminaries to assure that minimum illumination levels are maintained following momentary power dips. All other internal areas shall be lit with fluorescent luminaries. Where specific recommendations of lux level are not covered above, illumination level in such areas shall be finalized in consultation with Employer/owner

Bidder shall be required to measure levels of illumination after completion of lighting installation work and short fall in illumination level shall be made good by the Bidder. Complete set of calculations showing, room, index, copy MF shall be given during detailed engineering.

21.6.4 Switches / sockets of piano type shall be used in general and in offices of

staff, control room, MMI room, decorative modular switches shall be used. Suitable fans shall be provided in rooms/ plant areas as per relevant standards. For exhaust fans it must be provided in panel rooms, pump rooms, chemical rooms, stores, toilets and at least 20 air changes per hour must be maintained.

21.6.5 The following type of lighting fixtures shall be proposed:

a) Decorative type 2x36W fixtures for fluorescent luminaries inside office/ administrative buildings and control rooms.

b) Corrosion resistant fixture with canopy made of FRP for fluorescent luminaries for corrosive areas like chlorine handling or chemical store or area with corrosive smell/gases etc.

c) Industrial type vitreous enameled fixture for fluorescent luminaries inside 415V switchgear, MCC room and pump house.

Page 264: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

49 of 267

d) In outdoor process areas, lighting fixtures shall be sodium vapour type subjected to minimum of IP protection class.

e) All outside lights as plant field lights, building outside lights, flood lights etc. which are to be switched on only during night hours should be controlled through photo cell/ clock switch installed at a central place. All lights shall have minimum IP65 protection class.

f) Street lighting wiring shall be through buried underground.

g) All bulb fittings (except fluorescent lamps) will have screw type caps.

h) For outdoor lighting, the lighting feeder shall be operated through a contactor, controlled by photocell/ clock switch and shall also have a manual by pass switch.

21.6.6 Luminaries shall be installed to permit ease of maintenance i.e. it shall not be

necessary to shut down plant in order to carryout maintenance or to access luminaries located over areas of water etc. The Bidder shall provide all equipment necessary to carryout maintenance on the lighting installation and demonstrate its operation to the satisfaction of Owner(SMB.)

21.6.7 Indoor lighting circuit will be arranged in such a way that 50% lighting can

be put off in each room through switches. All lighting circuits will be wired with 2.5sq.mm. Stranded copper wire or through 2.5 sq.mm. armoured cable laid in cable trays. Sub circuit from switch to fixture could be wired with1.5 sq.mm. stranded copper wire in MS conduits or armoured copper cable of similar size provided total voltage drop in any lighting distribution board to last lighting point shall not exceed 2%. All lighting circuits will have separate neutral, separate earth from Lighting Distribution Board. For illumination of roads, outdoors areas where operation of equipment or units required and sub station area, lighting fixtures of appropriate type ( such as street lighting type, flood lighting type, post top lanterns etc.) incorporating high pressure sodium vapour lamps shall be proposed. Street light poles shall not have less than 7500 mm height above the finished road level and the arm shall not project more than 1200 mm along the road width. Poles of bigger heights may also be used if some outdoor areas are to be illuminated. Poles of 4 / 4.5 Mtrs using post top lantern may be used in gate office walk way or in front of office area. Complete area, streets, lanes, boundary shall be covered with street lighting.

Page 265: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

50 of 267

21.6.8 Receptacles (Lighting & Small Power) :

a) Decorative and industrial type units of above shall be proposed in all plant areas, offices, stores, workshop, plant room and they shall be located at least two numbers in each room. Distance between two receptacles shall not be more than 8 – 10 mtr. All small 5 amps 5 pin lighting & small power sockets shall be wired by multi stranded copper wire of 2.5 sq. mm laid in rigid MS conduits along with earth wire of1.5 sq.mm flexible copper wire or equivalent size armoured cables. All wiring shall be coded with Red, Yellow, Blue & Black as per the phase used. If required, wiring can be done alternatively through armoured copper cables of similar size laid in MS perforated trays of minimum 2.0 mm thick.

b) Three phase power receptacles (convenience outlets) suitable for operation of

415V,3 Phase 4 wire, 50 Hz power supply shall be proposed. In indoor areas one such unit shall be provided to cover areas of 20 meter radius (or at least one in each room housing plant items ) and in outdoors areas on such unit shall be provided at 50 meter interval. Actual requirement of such units shall be finalized by MMC during detailed engineering. One three phase receptacle shall be provided near entrance of each building for utilities like welding.

c) Single phase 15 Amp 5 Pin / 6 Pin receptacles will be provided in each room and

in halls they will be provided in such a way that with 15 meter cord we should reach every place in building. These shall be wired with 4 sq. mm copper earth wire in MS rigid conduits along with 2.5 sq. mm earth wire. Not more than two sockets shall be looped in one circuit. Alternatively they can also be connected through armoured cable of 4 sq. mm running in appropriate cable trays.

21.6.9 Separate lighting panels and lighting distribution boards shall be installed and

they shall not take tapping for power from motor control centers or power distribution boards.

Specifications Referred

The specifications contained herein are not exhaustive and for such items of works which may arise and which are not covered by this specification, or by the relevant Indian Standards, the provisions in the P.W.D. Handbook Vol. I and II (latest edition) shall apply. A list of few important Indian Standards is given below: Wherever reference to the Indian Standards

Page 266: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

51 of 267

mentioned below or otherwise appears in this specification, it shall be taken as a reference to the latest version of the standard.

IS No. Description

General

IS : 456 Code of Practice for Plain and Reinforced Concrete for General Building Construction

IS 3764 Safety code for excavation

IS : 1200 Method of measurement of building and engineering (Part 1 to 28) works

IS : 3385 Code of practice for measurement of Civil Engineering works.

IS : 1642 Fire safety of buildings (General): Details of Construction Code of Practice.

IS : 4082 Recommendations on stacking and storing of construction materials at site.

Sand

IS: 2116 Sand for Masonry, Mortar

IS: 1542 Sand for Plaster

Aggregates

IS: 383 Aggregates, Coarse and fine from National Sources for Concrete.

IS: 515 Aggregates for use in Mass Concrete Natural and Manufactured.

Cement

IS : 12330 Specification for sulphate Resisting Portland cement.

IS : 1489 Specification for Portland pozzolana cement

IS : 12269 Specification for 53 grade ordinary Portland cement.

Concrete Plain & Reinforced

IS : 457 Code of practice for general construction of plain and reinforced concrete for dams and other massive structures.

IS: 3370 Concrete Structures for the Storage of liquids (Part I & Part II, III & IV)

IS : 432 Specification for mild steel and medium tensile steel (Part 1 and 2) bars and hard drawn steel wires for concrete reinforcement

IS : 1786 Specification for high strength deformed steel bars and wires for concrete reinforcement.

IS : 4326 Code of practice for earthquake resistant design and construction of

Page 267: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

52 of 267

IS No. Description building.

IS : 10262 Recommended guidelines for concrete mix design.

Code for Construction safety

IS : 3696 Safety code for scaffolds and ladders. (Parts I and III)

IS : 7969 Safety code for handling and storage of building materials.

IS : 8989 Safety code for erection of concrete framed structures.

Brickwork

IS : 1077 Common Burnt Clay Building Bricks.

Paving and Floor Finishes

IS : 1237 Flooring Tiles, Cement Concrete

IS : 1443 Cement Concrete Flooring Tiles, Laying and Finishing of

Plastering & Pointing

IS : 1661 Cement and Lime, Plaster Finishes on Walls and Ceilings

Roof Coverings

IS : 459 Asbestos Cement Sheets, Unreinforced Corrugated Sheets

IS : 730 Fixing Accessories for Corrugated Sheet Roofing

Steel & Iron Work

IS : 226 Structural Steel (Revised)

IS : 800 Use of Structural Steel in General Building Construction, code of Practice for Pipes & Fittings Pipes

IS : 3486 Cast Iron Spigot & Socket Drain Pipes

IS : 1538 Cast Iron fittings for Pressure pipes for water, Gas & Sewage

IS : 1536 Centrifugally Cast Iron Pressure Pipes for water , Gas & Sewage.

IS : 458 Concrete pipes with or without reinforcement

IS : 783 Code of practice for laying Concrete pipes.

IS : 3114 Code of practice for laying of C.I. Pipes

IS : 1726 C.I. Manhole covers and frames intended for use in drainage works.

This list does not necessarily cover all the Standards referred to.

Page 268: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

53 of 267

Standard Specification for Electro-Mechanical work for STP GENERAL MECHANICAL REQUIREMENTS

Introduction

This part of the Employer’s Requirements sets out the general standards for mechanical equipments to be used by the Bidder for the works. Reference to any specific item does not necessarily imply that it is to be included in the works. All equipments used for the works shall, unless otherwise specified, comply with the provisions of this chapter.

Material

All materials incorporated in the work shall be the most suitable for the service conditions and duty concerned. They shall be new and of reputed make / approved quality, free from imperfections and selected for long life and minimum maintenance. Non–destructive tests, if called for in the Specification, shall be carried out. All submerged moving parts of the Plant, or shafts and spindles or faces etc. in contact with them shall be of corrosion resistant materials. All parts in direct contact with various chemicals, shall be completely resistant to corrosion, or abrasion by these chemicals, and shall maintain their properties without aging due to the passages of time, exposure to light or any other cause. All materials shall conform to the material standards as per BIS or any equivalent standard.

Workmanship

Workmanship and general finish shall be of first class quality and in accordance with best workshop practice. All welds shall be as per IS, BS, ASME standards. All tolerances and clearances shall be as per good and sound engineering practices. Should the Employer’s representative not consider any material acceptable, it shall be replaced

Design Features

As far as practicable, all designs shall be as per latest concept and practices. The equipment shall be new, of robust design for a long reliable operating life. These shall be capable of 24 hours per day continuous operation for prolonged period in the climatic and working conditions prevailing at the site and with a minimum of maintenance. Particular attention shall be given to extra temperature and the rating of electrical and mechanical equipment, cooling systems and the choice of lubricants shall be for the temperatures as specified.

The equipment shall be designed to provide easy access to and replacement of component parts which are subject to wear without the need to replace whole units. All parts in contact with water shall have a life from new to replacement for 15 years minimum and new to repair of not less than five years. Design features shall include the protection of equipment against damage caused by

Page 269: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

54 of 267

vermin, dirt, dust and dampness and to reduce risk of fire. Equipment shall operate without undue vibration.

The noise level produced by any equipment like pump sets, compressor sets and blower sets shall not exceed 85 dBA measured at a distance of 3 m from the outer surface of the equipment. At the time of operation, the mechanical vibration shall not exceed the limits given below, at recommended points of measurement as per ISO 10816:1995.

Parts shall be designed to withstand the maximum stresses under the most severe conditions of normal service. All rotating elements shall be dynamically and statically balanced.

Equipment Velocity of Vibration mm/sec

S.No EQUIPMENT Velocity of Vibration (mm/sec)

1 All rotating equipment not having reciprocating parts with motor KW less than or equal to 15 KW

1.12

2 All rotating equipment not having reciprocating parts with motor KW more than 15 KW and less than or equal to 75 KW

1.8

3 All rotating equipment not having reciprocating parts with motor KW greater than 75 KW

2.8

Lubrication

The equipment shall be lubricated by long life lubricants such that working life is not less than 3000 operation hours or as recommended by equipment manufacturer.

A complete schedule of recommended oils and other lubricants shall be furnished by the Bidder. The number of different types of lubricants shall be kept to a minimum. The schedule and the name of the supplier of the lubricants shall be submitted to the Employer’s representative for approval.

Lubricants shall be oil and grease. The Bidder shall indicate indigenously available equivalent lubricants, with complete specification.

Where the lubricant is grease, preference shall be given to a pressure system which does not require frequent adjustment or recharging. Preferably, life lubricated grease packed bearings shall be used.

Page 270: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

55 of 267

Where more than one special grease is required, a grease gun for each special type shall be supplied and permanently labeled.

Name Plates

Each equipment of the plant shall have permanently attached to it a nameplate and rating plate in a conspicuous position, Upon these shall be engraved or stamped, the manufacturers name, type and serial number of the equipment, details of the loading and duty at which the equipment has been designed to operate, and such diagrams as may be required by the Employer’s representative. All indicating and operating devices shall have securely attached to them or marked upon them designations as to their functions and proper manner of use.

Painting

1.1.1. At Manufacturer’s Works

The Bidder shall be responsible for the cleaning, preparation for painting, and priming or otherwise protecting, as specified, all parts of the Plant/ Equipment at the place of manufacture prior to packing.

Parts may be cleaned but surface defects may not be filled in before testing at the manufacturer’s works. Parts subject to hydraulic test shall be tested before any surface treatment. After testing, all surfaces shall be thoroughly cleaned and dried out, if necessary by washing with an approved de-watering fluid prior to surface treatment. Except where the specification provides to the contrary, all painting materials shall be applied in strict accordance with the paint manufacturer’s instructions.

Steel and cast iron parts shall be sand blasted to near white cleaning before painting. Edges, sharp corners etc. shall be ground to a curve before sand blasting. A primer coat of a zinc rich epoxy resin based coating with at least 75 microns dry film thickness is to be provided. In addition, the parts for wet duty are to be provided with an adequate number of coats of coal tar epoxy polyamine coating to a dry film thickness of 175 microns excluding primer coating.

1.1.2. At Site

Immediately on arrival at the site, all items of Plant shall be examined for damage to the paint coat applied at the manufacturer’s works. Any damaged portions shall be cleaned down to the bare metal, all rust removed, and the paint coat made good with similar paint. After erection, such equipment/ items which are not finish painted shall be done so. Items that have been finish painted at the manufacturer’s works shall be touched up for any damaged paint work.

Page 271: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

56 of 267

For finish painting, two coats of synthetic enamel conforming to IS: 2932 shall be applied. Dry film thickness of each coat shall be at least 25 microns. The dry paint film thickness shall be measured by Elcometer or other instruments approved by the Employer’s representative. In order to obtain the dry film thickness specified, the Bidder shall ensure that the coverage rate given by the paint manufacturer will enable this thickness to be obtained. Strength of adhesion shall be measured with an adhesion tester and this value shall not be less than 10 kg/cm2.

Painted fabricated steel work which is to be stored prior to erection shall be kept clear of the ground and shall be laid out or stacked in an orderly manner that will ensure that no water or dirt can accumulate on the surface. Suitable packing shall be laid between the stacked materials. Where cover is provided, it shall be ventilated.

Galvanizing

Wherever galvanizing has been specified the hot dip process shall be used And electro galvanized parts, equipment shall not be permitted. The galvanized coating shall be of uniform thickness. Weight of zinc coatings for various applications shall not be less than those indicated below:

a) Fabricated steel : 460 gms/sq. m

b) Fasteners : 300 gms/ sq. m

Galvanising shall be carried out, after all drilling, punching, cutting, bending and welding operations have been carried out. Burrs shall be removed before galvanizing. Any site modification of galvanized parts should be covered well by zinc rich primer and aluminum paint.

Supports for Pipe Work & Valves

All necessary supports, saddles, slings, fixing bolts & foundation bolts shall be provided to support the pipe work. Valve and other equipment mounted in the pipe work shall be supported independently of the pipes to which they connect.

All valves to be installed in straight lines shall be installed between the flanges with a dismantling joint or SS expansion bellow at one side of the valve. The dismantling joint must allow a minimum clearance of 20 mm. The pressure rating of the dismantling joint /expansion below shall be same as that of the valve.

Mechanically Raked Bar Screen

Page 272: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

57 of 267

Purpose Mechanized screens should be suitable for installation in Sewage pumping stations for

removal of floating wastes coming along with sewage. These screens should be capable to screen out most of the medium and large floating material such as plastic bags, floating debris, weeds, paper wastes, clothes and rags etc. which are generally clogging the impellers of the pumps installed downstream of the screens.

The operation of the screen shall be automatic. An ultrasonic type differential level controller shall be provided to sense the head loss through the bar and give the signal to the traveling raking mechanism to start its operation. The sensor will signal the raking mechanism to operate continuously till the head loss is reduced to a preset level.

A complete electrical control system shall be supplied with each screen and shall be mounted independently near to the screen installation. The system shall provide for total automatic operation of the screen with the feedback from the level controller.

General The screen shall be of the front raking type with aperture size of 75mm. All the materials

and sub-assemblies used shall be suitable for outdoor application. They shall be constructed so that maintenance is kept to a minimum. There shall not be any moving part, sprocket, bearings, etc. continuously immersed in sewage. All lubricating points shall be conveniently accessible from the deck level.

The screen shall be suitable for discharging 75% of the screened material lifted from the screen into the chute. The screen shall be designed such that in case of heavy accumulation of solids the same is to be removed gradually without overloading or damaging the screen bars or mechanism.

Frame work

The frame work of the screen shall be of robust construction with intermediate cross bracing. The lower ends and sides of the frame shall be grouted in concrete. Each screen shall have an independent canopy at the top for weather protection.

Screens bar assembly

Screen bar assembly shall be fitted across the screen chamber. Screen shall have a series of vertically oriented bars spanning the inlet channel and spaced as specified. Bars shall be sufficiently rigid to prevent vibrations in stream wise and lateral modes and to withstand the maximum differential head that will occur with the screen totally blinded. Bars shall have tapered cross section to prevent jamming of screenings between bars. Bars shall have supports only at both ends. The bar rake shall be made of galvanised steel flats of IS:2062, 12 mm thick at the front, 10mm thick at the back and 75 mm wide in section.

Page 273: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

58 of 267

Rake Carriage

(a) The rake carriage shall comprise a stiffened frame works to which are attached replaceable rake tines. The rake tines shall be suitable to accommodate bulky screenings. Rake carriage shall incorporate suitable devices to enable the rake to ride over any small obstacles wedged in the screen and automatically stop the drive motor in the event of the rake jamming against a large obstruction. There shall not be any mechanical damage resulting from obstruction wedged in the screen bars. The rake carriage shall always come to rest in a parked position with the rake above the sewage level.

(b) The screen shall be cleaned automatically through an adjustable timer. The rake lowered will clear screen bars at the beginning of a cycle and accurately engage with the screen bars at the bottom of the channel. The tine profile and rake motion shall be designed to elevate screenings to the discharge chute at deck level without debris falling back or being forced through the screen. The rake shall be suitable for elevating debris encountered at any level. Rake tines shall be replaceable.

(c) The screenings shall be discharged from the unit by a wiper mechanism down to a discharge chute leading to a conveyor belt. Arrangement shall be such as to ensure that screenings are discharged to the discharge chute leading to the conveyor. The rake tines shall then be retracted and the unit ready for the next cycle.

Rake Lifting Mechanism

Lifting mechanism shall consist of a steel wire rope or chain and sprocket.

Inspection Platforms

An inspection platform shall be provided for periodic checking and maintenance of the drive and other critical parts. A ladder with handrails for access to this platform shall be fixed. Suitable hand rails shall be provided for safety on the inspection platform and also at deck level.

Dead plate

Mild steel dead plate extending from the top of the bars to the deck level shall be provided to ensure that screenings do not fall back. Dead plate shall be made of minimum 5 mm thick plate. The clearance between the tines and the dead plate shall not exceed 5 mm.

Driving Mechanism

The driving mechanism shall consist of a sturdy reduction gear unit driven through multiple 'V' belts or directly by an electric motor. Motor shall be mounted in such a way that the tension of the 'V' belts can be adjusted. A manually reset torque limiter shall be provided between the motor

Page 274: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

59 of 267

and gear unit, incorporating a limit switch to cut off the supply to motors in the event of an overload.

Gear Reducer a. The reducer shall be sized and selected with a minimum service factor of 2.0 times the motor

nameplate horse power rating in accordance with applicable American Gear Manufacturer's Association Standards. The reducer shall have a life of 40,000 hours based on the motor name plate horse-power. The reducer shall have an efficiency of not less than 90% based on reducer input.

b. All gear meshes shall be oil lubricated. All gears shall be provided with an oil reservoir for instant lubrication on starting. The gear reducer housing shall be provided with an oil level indicator and oil drain with necessary fittings.

c. The gear reducer shall be of cast iron construction. The reducer housing shall also include suitable lifting lugs and external gear train inspection covers for each gear train. The gears shall be matched for maximum tolerance variation. The gear reducer shall be suitable to reduce the motor asynchronous speed to achieve the required speed of raking.

Control System a. The screening operation shall be carried out through adjustable timers which are adjustable at

site for 0-60 minutes for interval between two operations. b. Control system for the conveyor shall be designed to achieve the following: c. Conveyor shall be started when any of the rakes starts it’s upwards travel. d. Conveyor shall be stopped with a time delay (by adjustable timer) after rake is stopped. e. Weatherproof, lockable, emergency mushroom headed stop push buttons shall be provided

near each motor for screen and conveyor belt, operation of stop push button shall be included in the control scheme.

f. Differential pressure switches shall be provided to annunciate screen jamming.

Conveyor System

The conveyor shall be common to the mechanical and manual screens. The conveyor system shall be a combination of a horizontal conveyor and upward inclined conveyor (if required) and shall have a capacity to transfer the maximum screenings anticipated at the peak flow.

a. For the disposal of screenings, a common motor driven endless belt conveyor shall be

provided. The conveyor shall be designed in accordance with IS 11592 or equivalent. The conveyor and chutes shall be suitable for handling occasional heavy objects which will cause shock loads.

Page 275: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

60 of 267

b. The construction of the frame and support shall be robust and torque resistant. Belt conveyor shall be of 20 deg. Trough type complete with drive assembly structures, idlers, pulleys and belt cleaners. Idlers and pulley shall be provided with anti-friction bearings.

c. The belt material shall be two ply nylon or equivalent with minimum 3 mm neoprene covering on carrying side. Splicing shall be employed to make the belt endless. The belt shall operate over three roll twenty degree, troughing idlers. The idlers shall rotate on precision type, deep groove, single row ball bearing with built-in close fitting triple labyrinth grease seal. The ends of the outer shell shall be counter bored and a full length centre tube journalled concentricity. The outer shell, centre tube and precision die formed steel ends shall be brazed into an integral unit to provide concentricity.

d. The ends of the centre tube shall be bored concentrically with each other after roll assembly to provide correct bearing alignment and to provide pre-stressing of boring. The centre tube shall be grease fit after assembly. Troughing idlers shall have means of adjustment or ensuring belt tracking. On the return run the belt shall operate over flat roll idlers having bearing, shaft and lubrication arrangements as above for carrying idlers. Spacing of idlers shall be of 1200 mm on carrying run and 2400 mm on return run.

e. The head and tail pulleys shall be manufactured from welded steel/any alloy steel and shall be provided with rubber lagging. Lagging for drive pulleys shall have herringbone grooving. Pulleys shall be equipped with taper lock bushings. The tail pulley shall incorporate a screw rake for adjusting belt tension. Head and tail pulleys shall be adequately guarded.

f. Shafting for pulleys shall be of heat treated carbon steel. They shall be forged, ground and polished to obtain close diameter tolerances. The head shaft shall be provided with roller bearing pillow blocks.

g. The belt conveyor shall be driven by a squirrel cage, TEFC motor. A V-belt drive arrangement shall be provided between the motor and a helical speed reducer, the latter shall be mounted on the end of the head shaft. The driving pulley shaft shall have back stops to prevent backward movement of the belt.

h. The conveyor shall be supported on 150mm channel sections with 14 gauge steel deck plate between the two runs of the belt and the necessary supports to the floor. The floor supports shall be made out of steel plates having minimum 6 mm thickness. The conveyor shall be protected from weather by a ‘dog box’ type canopy.

i. An adjustable belt scraper shall be provided on the hopper end of the conveyor belt. The scraper and attachments shall be of fiberglass/fiber reinforced plastic/PVC.

j. Screenings discharge chutes shall be provided to transfer screenings from the screens to the troughed belt conveyor and from the conveyor discharge to skip. The latter chute shall extend beneath the belt scraper and shall allow access for maintenance of the belt scraper. Chutes shall be designed to minimize the accumulation of rags and stringy materials.

k. The conveyor shall be fitted with an emergency stop operated by wire rope at foot level. Two Nos Belt sway switches shall be provided on conveyor.

Page 276: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

61 of 267

Portable Screenings Container

Portable screenings containers made of galvanized steel shall be provided to store the screenings until time of pick up. The container shall have capacity of approximate 2.0 cu.m and shall be of a convenient height to permit the discharge of screenings directly into the container without having to transfer the screenings manually. The containers shall have hinged covers and their design shall permit their being lifted by an overhead hoist or packer truck. The container will have four wheels each of about 20 cm diameter and two of which shall be swivel castors. The maximum height of container including wheels shall be 66 cms. The sides shall be constructed of 12 gauge steel. The bottom of container shall be made of 5 mm plate steel. The containers shall be reinforced with 50 mm x 50 mm x 5 mm angle.

Motors

(a) Motors shall be squirrel cage type conforming to IS 325. The power rating of motor shall be at least 125% of maximum power requirement. The other features of motors shall be as follows :

Type of duty : Intermittent (S4)

Method of Starting : DOL

Class of insulation : F (Temperature rise limited to class B)

Type of enclosure : TEFC

Degree of protection : IP 55

(b) The material of construction of Mechanical Raked Screen shall be as follows:

(i) Screen Carbon Steel

(ii) Frame (Side and Bottom Portion)

Cast Iron : IS 210 Gr. FG 200

(iii) Raked tines Cast Steel : ASTM-A 216 Gr.WCB

(iv) Fasteners including Anchor bolts

Stainless Steel : ASTM A 276- Type 316

(v) Screen canopy Stainless Steel: BS:970 Gr 304

(vi) Chutes Mild Steel - Galvanized

Mechanical Fine Bar Screen

Page 277: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

62 of 267

General The Fine Band Screen shall consist of continuously moving perforated stainless steel

panels.

The machine shall be arranged to pivot out of the channel.

The aperture size shall be 6mm.

Construction

Frame: The frame shall consist of two lateral stainless steel 316 plates connected by means of cross braces.

Chain wheels: The machine shall work on the endless chain principle and incorporate chain wheels at the top and bottom. The top wheels shall be keyed onto the main drive shaft. The bottom wheels shall be carried on stub shafts incorporating a sealed bearing of suitable synthetic material.

Chain: The chain shall be constructed in stainless steel with the screen panels directly attached.

Screen Panels: Minimum 3mm thick panels of stainless steel 316 construction shall incorporate 6mm diameter perforations. These panels shall be carried on the chains. The panels shall be specially formed to give a very rigid construction and shall create steps to enable larger screenings to be removed.

Seals: Polypropylene sealing brushes shall be incorporated at each side and across the bottom of the screen to prevent screenings from by-passing the screen panels.

Screenings Discharge: Screenings shall be discharged on the downstream side of the unit and shall be removed from

the screen panels by a heavy duty rotating brush. The brush material shall be polypropylene. Screenings are delivered down an enclosed chute. Two nos. screening collection containers (wheeled) of suitable capacity shall be supplied with

the screens.

Enclosure:

The entire assembly shall be enclosed in reinforced fibre glass housing. A hinged front cover shall be provided to give access to the rotating brush assembly and screen discharge area. A sliding inspection hatch shall also be incorporated.

Drive Unit • The drive to the main shaft shall be TEFC weatherproof IP55 motor fitted with an anti-

condensation heater and shall be suitable for operation on 415V + 10% and frequency of

Page 278: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

63 of 267

50Hz + 5%. The motor shall be flanged to a shaft mounted gear unit giving the final output speed. This shall produce a linear speed for the screen panels of about 3 m/min.

• The drive shall be protected from mechanical overload by an electrical current sensing device in the screen control panel.

• Differential pressure switches shall be provided to annunciate screen jamming. • Suitable conveyer arrangement shall be provided to transfer the screenings to the nearest

container/trailer. • A spray system shall be provided to backwash the screen panels and to help in cleaning the

screenings. Water / treated sewage shall be used for back wash purpose.

Control Panel

The Control Panel shall have IP 55 protection, painted with Epoxy paint and shall be comprising of

- Mushroom Head Emergency stop

- Overload relays for motor protection

- MCB’s, HRC Fuses and Glass Fuses

- Circuitry to operate the screen with level sensors.

- Selector Switch to operate the screen on JOG mode

Manually Raked Screen

(a) The trash screen shall be rectangular in shape.

(b) The screen shall be fabricated out of M.S flats (Epoxy coated) and fixing bolts shall be of stainless steel.

(c) The rectangular trash screen shall comprise M.S flats, 10 mm thick and 50 mm wide in section.

(d) The screen shall be rigidly fixed to the frame. The screenings shall be first collected on a perforated tray or slab, before it is loaded on the belt conveyor.

(e) All the bypass screens shall be provided with 2 sets of cleaning rakes.

(f) Four nos. portable containers of 0.50 cum capacity shall be provided with suitable hooks for lifting by chain pulley block.

Grit Removing Equipment

The grit separator shall be square in size and twin unit construction. A Central drive mechanism of worm reduction type driven through helical gear and motor or by geared motor shall be

Page 279: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

64 of 267

mounted on the RCC platform spanning the tank. All exposed steel parts shall be sand blasted and painted with epoxy. The walkway shall have RCC posts and handrails of anodized aluminum. All wetted parts shall be in mild steel with epoxy coating. The epoxy coating shall be suitable for corrosion as well as abrasion of the grit.

The grit removing mechanism shall be of moving rake type. The drive shall be provided with electro-mechanical device, torque indicating arrangement and mechanical trip contacts with electrical overload relays. Flow regulating vanes shall be provided at the inlet side of the collection chamber and shall be of FRP. The vanes shall be adjusted as per the flow requirement. The weirs at the outlet of grit chamber shall be SS 304 with minimum 3- mm thickness. The spacing of anchor bolts of SS 304 for the fixing of the weir shall not be more than 450 mm.

Drive head along with induction motor with mechanical indicating arrangement shall be provided. Mechanical trip contacts and electrical overload relays shall be provided. One set of push button shall be provided near the motor.

Classifier Mechanism

The classifier mechanism shall comprise of a screw driven by a suitable motor. The material of construction of the mechanism shall be SS 304 and the diameter shall be minimum 400 mm. The length of screw shall be such that the grit can be elevated up to the discharge end. SS puddle pipe shall be provided in the concrete trough at the discharge point of wet grit.

Classifier Mechanism: The mechanism shall consist of the following:

Chain and sprocket with guard.

Reciprocating rake with hangers or screw mechanism.

A.C. motor.

Local push button shall be provided.

Organic Return Pump:

Vertical propeller pump with suitable motor, starter, etc. shall be provided. The design of the pump and the piping on the inlet and outlet side has to be such that there are minimum numbers of bends as they are liable to be choked with organic matter.

One set of push button shall be provided near the pump set and one starter in the terminal sewage pumping station.

Page 280: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

65 of 267

The suspended organic matter washed in the de-gritting system will be returned to the distribution chamber. Impeller shall be of SS CF8M and shaft shall be of SS 316.

In the event of tripping of working grit removing equipment (motor), the sizing of this equipment (including motor) shall be done in such a way that it shall take the overhead to remove the excess grit collected after starting of the tripped grit removal equipment.

Sludge Handling.

As Sludge generated from different process units various depending upon the process adopted, it is advised to provide sludge handling units and equipments like Sludge thickeners, Digesters, centrifuge, Vacuum filter press, and other ancillary units which is suitable for the process and which is sustainable from Operation & Maintenance point of view. The units and equipments shall be selected accordingly which occupies less space, power, chemicals and maintenance.

Air blowers for Oxygenation

The blowers shall be provided for providing adequate oxygen into the reactor tank for aeration. The blowers shall be capable of developing the required total pressure at the rated capacity for continuous operation. The blowers shall be Twin lobe type preferably.

Air Blowers a. Compressor blowers shall be of the Roots type, each provided with inlet filter and silencer,

pressure reducing valve, pressure gauges, pressure relief valve, drain, air flow indicator and acoustic bend or silencer in the delivery branch. Bearing housings and gear boxes shall be separated from the blower housings by air spaces. The units shall be complete with a self contained oil cooling system for the bearings. The blowers shall be housed in a separate sound proof room to reduce the noise level or inside acoustic enclosure. The noise level shall not exceed 85 dBA at 1.86 meter from the Blower.

b. The bearings shall be generously designed to give long operational life. Bearings at the drive end may be oil or grease lubricated. The gears and bearings at the non-drive end shall be oil lubricated. Bearings shall be provided with oil throwers to prevent leakage of oil. The delivery velocity not exceeding 25 m/s and each blower shall be provided with following components but not limited to:

• Common base frame for Blower & Motor

• inlet silencer and filter

• Discharge Silencer & non-return valve in delivery branch

Page 281: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

66 of 267

• Butterfly valves in both inlet and delivery branches

• pressure relief valve or excess pressure safety device

• Bellows type couplings on inlet and delivery branches.

• Acoustics Enclosure

• Motor-Blower Direct coupling.

• Isolating valves, Pressure reducing valves & Pressure gauges

c. The interconnecting pipe work shall be flanged to BS EN 1092-1. A drain cock shall be provided at the lowest point in the each delivery pipe work along with reflux valve. Individual stop valves and safety valves shall be provided for each unit.

d. Blowers shall be driven by squirrel cage motors through a direct coupling. Blowers shall not

run above 1200 rpm. e. Each delivery branch shall include a drain at the lowest part and a reflux valve. f. The blower equipment specified herein is standard equipment for blowers handling ambient

air for use in aeration tank diffusers.

General Design Requirements

a. The air blowers shall be of such design as to achieve energy efficient operation continuously

over the range of design airflow rates at the discharge pressure that shall remain practically constant.

b. Each blower shall be fitted with a variable speed motor and be capable of operating between 80% and 110% of its nominal peak airflow demand.

c. The discharge pressure shall be calculated by the Bidder dependent on the final design layout of the aeration system and of the delivery manifold.

d. The blowers shall also be capable of supplying the design “mass flow” rate at maximum ambient inlet temperature of 50ºC.

e. Each of the blowers shall be capable of operating without surge in parallel with the other duty blower at the maximum mass flow against designed maximum gauge pressure at the outlet pipe. The Bidder shall demonstrate this during testing and commissioning.

f. Performance curves for the blower system shall be submitted. Standard certified factory test sheets showing the results of each test shall be supplied in triplicate to the Engineer prior to delivery of the blowers. The blower unit shall be capable to operate at maximum duty for continuous operation. The blower motor shall not exceed a maximum speed of 1500 rpm and the blower shall not exceed the manufacturer’s recommended maximum speed.

Page 282: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

67 of 267

Blower General Arrangement

a. The blower arrangement shall have the following features: b. The blowers shall be roots type units c. Each blower shall be fitted with an acoustic enclosure; d. The arrangement shall be such that all blowers are accessible for operation and

maintenance and the installation of additional blowers in the future is possible; e. The blowers shall be neatly arranged and housed in a sound attenuated building. f. The inlet air to the blower house shall be filtered to suit the blowers and aeration diffusers

selected; g. A blower removal system shall be provided so that any one blower can be removed as a

single unit and loaded onto a truck. The blower building shall be acoustically designed to minimise both noise inside the building and noise breaking out of the building. The building ventilation system shall be designed to limit the temperature rise not more than 3° C above ambient temperature.

Ancillary Equipment for Blowers

The blowers shall be provided with the usual ancillary equipment for aeration duty, including:

a. Acoustic enclosure with fan cooling b. Discharge pressure switch c. Discharge pressure relief valve d. Discharge check valve e. Discharge isolation valves f. Discharge silencer, designed to minimise noise propagation along the pipe work g. Vacuum switch, pressure switch, oil level indicator and any other monitoring device shall

be mounted outside the acoustic enclosure h. Inlet and outlet pressure gauges shall be mounted outside the acoustic enclosure i. Vibration absorbing mounting pads.

Blower Noise limits

The blowers supplied under this Contract shall be quiet in operation. The Bidder shall guarantee that the total sound power noise emission for the aeration system shall be broad band and free from any tonal or intermittent components. Under any loading condition from no load to full rated, the blower supplied shall comply with the noise requirements.

Page 283: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

68 of 267

Materials of Constructions

The materials of construction for the blowers shall be atleast equal in quality to the following:

Casing : C I conforming to IS: 210 Gr FG 260

Rotor : Alloy steel

Shaft : Carbon steel C40/EN 24/19

Timing gear : Cast alloy steel

Pulley and gear side plates and cover

: CI conforming to IS 210 Gr FG 260

impeller : Manufacturer’s std

Base plate : Steel, Galvanized

Nuts and Bolts : Stainless Steel

Tests

S.No Tests Specifications

1 Hydrostatic tests Twice the maximum working pressure

2 Performance test As per BS : 1571

3 Strip test Clearances with tolerance limit

4 Mechanical balancing ISO 1940 Gr. 6.3 or better

5 Visual Inspection Before painting

Filters and Silencers

a. This filter shall be used to remove dust, etc. contained in the suction air. For this purpose,

a filter shall be mounted directly to the suction silencer of each blower. The filter element shall be non-textile cloth or equivalent, and the element passage speed shall be 2 m/s max. The Bidder shall indicate the useful life period for the diffuser.

b. The blowers shall receive filtered air individual replaceable filter elements suitable for the intended duty.

c. The filter elements shall be housed in an airtight housing which shall allow easy replacement of the filter elements. Replacement of elements shall be possible without the use of tools.

Page 284: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

69 of 267

d. If the filter/silencer elements supplied are located out of doors a weatherproof cover shall protect the filter element from rain.

e. The filter unit shall be fitted with suitable vacuum gauges to indicate the suction pressure into each blower. The gauges shall be industrial Bourdon of Schaffer type gauges with a nominal diameter of 150 mm. The scale shall be suitably selected and shall include a red line to indicate the point at which the filter elements require renewal.

f. Each blower intake shall be fitted with a differential pressure switch, which shall indicate an alarm signal in the event of excessive pressure drop in the blower intake.

Flexible Connections

a. The blower discharge shall be fitted with an approved flexible sleeve with fixing clamps

and a flanged outlet spigot for connection to site pipe work. If the blower inlet is via a common plenum the inlet pipe shall be also fitted with a flexible connection.

b. Flanges shall be drilled to Table D and shall comply with the required standard. Sleeves shall be manufactured from an approved non-metallic material suitable for the duty and location in which the blowers are to be installed.

Pressure Relief Valve

a. The pressure relief valve shall be sized and adjusted to allow the full flow of the blower

to be discharged in the event of a blockage or valve closure in the downstream pipeline and without overloading the drive motor.

b. Each blower shall be fitted with a suitable pressure switch, which shall shut down the blower in the event of excessive discharge pressure. The pressure setting shall be lower than the set pressure of the pressure relief valves.

c. The pressure relief valve shall be installed at a height above 2m from the floor and away from blower suction point. The pressure relief valve shall be fitted with a silencer.

Non-Return Valves

• A non-return valve shall be installed on the discharge pipe work of each blower, upstream of

the blower isolation valve.

Isolating Valves

• Isolating valves shall be installed on the delivery pipe work of the blowers; such that each

blower and all associated pipe work and valves upstream of the common distribution manifold can be dismantled without disruption to the normal operation of the plant

Temperature Measurement

Page 285: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

70 of 267

• Temperature sensor complete with gauge of an approved type shall be supplied for each main

distribution pipe work and for the blower room.

Piping Vibration

• If the blower type selected produces a discharge flow with a pulsating characteristic, flow

pulsation dampers shall be installed on the blower intake and discharge, as required, to eliminate excessive noise or vibration from this source.

Air Compressors

a. However, if a Compressor system is required for some reason, it shall comprise

compressors, after-coolers and air/dryers, duty/standby air receivers together with control equipment, oil eliminating filters, flow regulators and oil mist lubricators as required.

b. Electrically driven air compressor sets shall operate up to minimum10 bar working pressure.

Compressor sets with at least 1 standby shall be provided complete with the following:

• Common base frame for Compressor & Motor

• Single stage air-cooled unit

• Isolating valves

• Air filter and silencer

• Pressure relief valve or excess pressure safety device

• pressure reducing valves

• Pressure gauges

• Off loading piston

• Automatic changeover (failure of duty unit)

• drain pipes

• Isolating valve

• V-Belt drive arrangement with Belt Guard

• Stoppers

• Air-receivers

• Others necessary appurtenances

Page 286: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

71 of 267

c. Compressors shall be arranged for automatic changeover on failure of the duty unit. Failure of the duty unit shall initiate an alarm. Control equipment shall include automatic unloading valves, pressure switches for duty standby and alarm, and lockable changeover switches.

d. 1 Duty & 1 Standby after coolers shall be provided. Water- cooled or air blast types will be considered. Air receivers shall be designed and fabricated in accordance with relevant approved standards. They shall be mounted vertically on steel feet so that sufficient space is allowed for each access to the whole outside surface. Receivers shall be provided with drain cocks piped to drain pressure gauges and relief and check valves.

e. Supply of all necessary electrical components, devices, equipment, control panels, etc. together with cabling, earthing provisions, etc. shall be the responsibility of the Bidder.

f. Interconnecting pipe work shall be arranged to avoid low points, which may trap water. g. Unavoidable low points shall be provided with drain cocks piped to waste.

Diffused Air Aeration System

This section of the specification sets out the minimum requirements for the design and selection of diffused air aeration system equipment.

1. The pipe works, instrumentation and the diffusers shall be correctly sized to deliver the required quantity of air at the available pressure to meet all operating conditions. The pipe work to the tank shall be sized for 125% of the required oxygen transfer capacity to cater for the higher loadings.

2. The aeration headers shall be designed for removal/replacement from/to the reactor without taking the reactor off-line or dewatering the reactor. The Bidder shall be required to demonstrate removal and replacement of the headers with the reactor on-line.

Aeration diffusers

a. Air diffuser system consist of tube type porous membrane of Acid resistant silicon based

rubber with diameter not exceeding 65 mm diameter size, Single piece injection molded PP support tube, SS clamps.

b. Entire diffuser has to be manufactured, assembled, tested in factory premises & no site work is permitted.

c. Flat surfaces facing upwards as membrane surfaces shall not be accepted. d. The aeration tank is used to remove oxygen consuming organic matter from the effluent

by biological treatment. Diffused aeration is used for air supply. The bubbles produced from the diffuser are of extremely small size between 0.5 – 0.8 mm, thus the total surface area that interacts is large and the contact time of bubble is large due to slow rise of bubbles. The system is thus extremely power efficient in terms of oxygen transfer

Page 287: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

72 of 267

efficiency. The flow of fine bubble of 0.8 mm in size provides a gentle mixing, which prevents flock shear.

e. Fine bubble diffuser consists of a porous membrane made of Acid resistant silicon based rubber. Each diffuser is fully supported over the length and circumference on single piece injection molded polypropylene (PP) tube with a RIDGE on the top to hold the membrane in position against the velocity generated in the wastewater.

f. No drilled holes on the support tube are permitted and only channel type of arrangement for entry of air into membrane is desired. Air opening on the membrane should be 0.8 - 1 mm with staggered perforation.

g. The diffuser will be retained in place by two clamps. It is fitted to the pipe lateral by CLIPIN arrangement. The laterals are connected to a pipe header. The wetted parts of the system a re made of non-corrosive material specifically SS 304. During power shutdown at the sewage treatment plant the membrane will contract and lose around the PP support pipe and means shall be provided to prevent any back flow.

h. Each diffuser shall consist of the following: Minimum 65 m OD PP injection molded support pipe.

• Porous membrane made of silicon based rubber lateral.

• RCC support block with SS 304 clamping.

• Flexible Hose pipe (drop pipe for each diffuser assembly)

• PP Ropes for Lifting and guide position.

• Hose clamp

• Pipe connector

• GI barrel nipple with connector for connection with pipe.

i. Complete diffuser shall be assembled at original factory level and site fabrication of

diffuser is not acceptable. j. All hardware accessories including clamps, fasteners, fan-hooks, eye bolts, should be of

SS 304 materials only.

Air Supply pipe work

General Design Criteria

a. Many factors need to be incorporated in the design of the air distribution pipe work to

minimize the potential of noise problems occurring. Factors to be considered in the design of the air pipe work to minimize noise level shall include:

• The diameter of the pipe work, to keep velocities low.

Page 288: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

73 of 267

• The connection of the blower discharge pipes to the manifold should be "wye", not at right angles.

• No blind flange at the end of the manifold. • The manifold shall be designed to ensure air travels in one direction. • The air pipe work shall be designed to minimize changes of direction and use large radius

bends. • Flexible connections shall be provided between the diffuser assembly nits and the main air supply pipe work to allow for any differential movements.

• Expansion and contraction shall be fully allowed for in the design and installation of the air distribution pipe work.

• Rain taps shall be provided on the air pipe work to allow draining of moisture. • The pipe work and the support brackets shall be galvanized steel. • Pipe work shall have inbuilt flexibility such as packer flanges for reasonable

construction tolerances on the structures to which it is attached.

b. Pipe shall be designed to ensure the efficient operation of the aeration system and

compliance with the noise limitations. All valves in the air delivery system shall be correctly selected for the duty. Calculations of Cv (head loss coefficient) values for the range of flows and pressure losses across each valve should be prepared to ensure that each valve has adequate range of controllability for the duty.

c. However the air piping submerged in sewage has to be in SS304 conforming to I.S specification. Two spare drop pipes with diffuser elements shall be supplied by the Bidder one for each compartment. This will be used to replace the choked diffusers drop pipe or on preventive basis on rotation. The choked one will be attended to and used as spare drop pipe.

Air Supply Headers

• The air supply headers run from the main air distribution pipe work to the down comers. Pipe

work shall have inbuilt flexibility such as packer flanges for future modifications and to allow for reasonable construction tolerances on the structures to which it is attached. An isolation valve for each main air supply pipe shall be installed at the point of connection to the main distribution pipe work. The design of the main air supply header shall incorporate all components necessary to enable the easy connection of the main distribution pipe work to the main air supply header.

Blower Discharge Pipe work

• The discharge pipe work from each blower shall be connected to a common manifold.

Flexible connections shall be provided between the blower assembly units and the discharge pipe work to allow for any differential movements. The design of the manifold pipe work

Page 289: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

74 of 267

shall incorporate all components necessary to enable the easy connection to the main distribution pipe work.

Air Flow Measurement

a. The amount of air being supplied to each air supply header shall be measured by the

installation of Flow measuring devices. The flow measuring devices shall be suitable for the intended application. The sensor assembly shall be supplied with suitable fittings which shall enable easy removal during maintenance. The accuracy of the flow meter shall be within 5% of the minimum design flow rate. The installation shall provide adequate length of straight pipe upstream and downstream of the flow meter to ensure the accuracy of the meter is attained.

b. Pressure and temperature sensors, shall be provided to measure the pressure and temperature of the air in the pipe, upstream of the flow measurement device.

c. Pressure and temperature compensation measurements shall be provided for volumetric correction if the control air is based on airflow rate.

Pressure Gauges

Pressure gauges of an approved type shall be installed on each main distribution pipe work and main header.

Leak and Pattern Testing Diffuser System

a. The diffuser system shall be visually tested by filling the tanks with clean water to level 1m

above the top of the diffuser assembly units. Air shall then be passed through the diffusers and a visual assessment of the diffuse operation shall be made.

b. The visual assessment shall include the following minimum inspection: • Checking all diffusers for installation level within the required tolerances

• Checking that all joints along the diffuser headers have been made airtight

• Checking the required air distribution of diffused air is achieved across the entire tank

floor.

Disinfection -Chlorination system

Vacuum type Gas chlorinators shall be supplied with one duty and one standby unit for post chlorination.

Chlorinators shall be free-standing, floor-mounted, and shall have a turn down ratio of 10: 1 over the full range of works operation.

Page 290: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

75 of 267

Each chlorinator shall be equipped with a motorized plug positioned to be actuated by a Filtered water flow at the works outlet.

Provision for manual setting of the dosing rate shall be built in the system in addition to automatic dosing adjustment and each chlorinator shall be equipped with a 0 to 10 mg/l scale and a manual dose setter over the range above this.

Mal-operation of the duty chlorination system shall be indicated in the chlorination room and the central MMI. The change to the standby system shall be carried out automatically in the event of a duty chlorinator failure.

• Chlorine solution diffusers shall be supplied and installed at the dosing point

Chlorine Drum Connector Tubes:

The plastic sheathed copper tubes connecting the liquid chlorine drums and the liquid chlorine header system shall be equipped with adaptors to accept drums supplied by the Employer.

Flanges and Joints for Liquid Chlorine Pipe Work:

Flanges for liquid chlorine pipe work and valves shall be raised face flanged double fillet welded, stress relieved and radio graphed, drilled to relevant tables of BS EN 1092-1. Joint rings shall be 2 mm compressed Asbestos Fibre (CAF) tabbed to BS: 2815 Grade B fitting within the bolt circle. Prior to installation the joint rings shall be impregnated / smeared with graphite compound or similar jointing compound compatible with liquid chlorine.

Liquid Chlorine Pipe Work a. Pipe work conveying liquid chlorine shall be carbon steel hot finished seamless, cold

drawn seamless to BS: 3602 Class 23 or 27. Pipe work shall be adequately supported throughout its length and sufficient number of flanges shall be incorporated to enable maintenance or repairs to be carried out without having to work from one end of the pipe work.

b. The pipe work shall include rupture disc and expansion chamber as per recommendations of Chlorine Institute, USA. An alarm switch shall be provided set to function if rupture occurs.

c. Following any welding work on the pipe work the entire section of the affected pipe work shall be stress relieved and radio graphed.

Valves for Liquid Chlorine

• Valves for liquid chlorine duty shall be Poly tetra fluro-ethylene sleeved plug type 2-way

valves with carbon steel body and Monel plug. • Where the valves are manually operated, they shall be wrench situated with padlock type

locking feature. • Power actuated valves shall have electric actuators with built-in position feedback limit

switches, torque overload protector, IP 56 enclosures and manual override facilities.

Chlorine Pressure Gauges

Page 291: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

76 of 267

• Pressure gauges for use with chlorine shall be of the Bourdon tube type with a special diaphragm isolating the tube from the liquid or gaseous chlorine. Pressure gauges shall have dials not less than 150 mm diameter except where they form an integral part of equipment, such as a chlorinator. No aluminum shall be used in the construction of the gauges; the dials and bezels shall be of bronze and internal components shall be of a stainless steel or other alloy or material resistant to corrosion by chlorine.

• All pressure gauge piping shall include isolating valves at each point of connection to the main piping.

• Where necessary, pressure gauges shall be fitted with adjustable electrical contacts for initiation of alarm conditions with either rising or falling pressure, to suit the system design.

Automatic Drum Changeover Panel

a. The automatic drum changeover panel shall be a specially designed unit capable of

selecting liquid chlorine containers for duty on an alternate basis. The unit shall be capable of working in conjunction with two liquid chlorine drums (one duty, one standby).

b. The panel shall satisfy the following duty functions in chronological order: • Check pressure in the line initiate automatic changeover and alarm if pressure is

low; • Shut the delivery valve of the drum that has just become empty and open the

valve of the standby drum on-line; • Re-check pressure as in (1) above and initiate alarm if pressure is still low; • Proceed until next changeover is initiated, then repeat the sequence; • At each step, the operation of valves shall be monitored using position feedback

limit switches and valves failing to operate in a set time shall immediately initiate an alarm.

Chlorine Gas Pipe Work a. Pipe work conveying chlorine gas shall be solid draw steel tube to B.S.1387 with BSP

taper threads to B.S. 21. All fittings shall be of malleable iron. Chlorine gas pipe work shall be adequately supported. Threaded joints shall be sealed using jointing compound compatible with chlorine. Poly tetrafluoroethylene tapes shall not be acceptable.

b. Where installation involves injectors to be located near the dosing points or remote

injectors, the vacuum chlorine gas delivery lines downstream of chlorinators shall be of uPVC or approved equivalent and the lines to be run in RCC ducts with proper Pre-cast covers.

Chlorine Gas Valves

• Valves for gaseous chlorine duty shall be specifically designed for chlorine with forged

steel bodies, Monel valve packing or special diaphragm in chlorine resistant materials.

Page 292: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

77 of 267

Chlorine Gas PRV and Shut-Off Valves

a. Chlorine Gas Pressure Reducing and shut-off valve shall be a spring loaded, diaphragm

operated valve with super-imposed electric actuator designed to reduce varying gas pressure upstream to a desired regulated pressure downstream and maintain this pressure within close limits.

b. The diaphragm shall be made of Polytetrafluorethylene (PTFE).

c. The electric actuator shall ensure quick shut-off of the gas flow in the event of a

breakdown or similar event.

Injector Motive Water Supply System

• Injector water supply system shall be compatible with the flow and pressure requirements

at the maximum rated output of the chlorinators offered and to limit the chlorine solution concentration to an acceptable limit at operational fluid temperature up to 330 C.

Chlorinators

a. The chlorinators shall be vacuum operated aqueous solution feed type units working in

conjunction with wall-mounted injectors.

b. The units shall be discrete floor standing cabinets of plastic/composite construction. The

chlorinators shall be suitable for manual feed rate control and incorporate a flow metering device for precise regulating of chlorine gas over a 20:1 flow range, with a metering accuracy of plus or minus 4% of the indicated gas flow rate.

c. Each chlorinator shall be fitted with the following principal components;

• Gas inlet pressure regulating valve

• Pressure/vacuum relief valve with safety vent

• Vacuum regulating valve

• Gas feed rate regulator preferably of the 'V' notch cylindrical plug and variable area

orifice type

• Variable area type flow meter with linear feed rate indicator calibrated in kg/hr

• Thermostatically controlled gas inlet heater

• Wall mounted injector, preferably of adjustable throat type

• Rigid PVC pipe work to wall mounted remote injectors.

Page 293: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

78 of 267

• Chlorinators shall be provided with panel mounted indicators for the chlorine gas

inlet pressure, injector vacuum, motive water pressure, chlorine solution pressure

immediately downstream of injector and a feed rate adjustment knob.

• Chlorine gas feed piping shall be provided with valves to allow isolation of each

chlorinator without disturbing the operation of the other chlorinators.

• Rigid PVC chlorine vent piping shall also be provided and arranged to discharge at a

high level outside the room housing the chlorinators to ensure safe atmospheric

dilution.

• The chlorine supply to the injector shall shut down automatically if:

• The water supply to the injectors shall fail

• The injector vacuum line breaks

• The chlorine solution line is accidentally shut down by the closing of a chlorine

solution dosing valve.

• A check valve shall be provided between chlorinator and injector to prevent

accidental backflow into the chlorinator. This shall be consistent with the injector

design with respect to gas flow and water pressure. While effectively preventing

backflow, this valve shall allow requisite gas flow.

• Additional safety devices shall be incorporated in the equipment to prevent hazards to

the Bidders or damage to the components under normal operating and shutdown

conditions.

• All electrical services and control signal lines (where applicable) shall be wired to a

single termination board within the chlorinator cabinet. The termination board shall

preferably be totally enclosed in a gas-tight junction box with glanded cable entries

and fitted with a clearly labeled warning sign stating the supply voltage. Electrical

supply isolating switches interlocked with the panel doors shall also be provided in

each chlorinator cabinet.

Chlorine Draw-Off System

a. Chlorine shall be drawn off as gas; to minimize drum handling there shall be adequate

connections and drum isolating valves provided to enable one drum from each row to be connected to the automatic drum changeover device to be provided under this Contract.

Page 294: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

79 of 267

b. The local supply of liquid chlorine may contain 0.1% to 0.2% ferric chloride and about 50 mg/l moisture. Tenderers shall provide for suitable devices such as filters so that the pipe work and equipment are protected against deposits or corrosion.

c. The duty/standby drums shall be located on plinth-mounted casters with four rollers per

set or drums. The casters with rollers for these drums shall be supplied and installed under this Contract.

d. The installation shall include all necessary chlorine headers including supports, power

actuated valves and manual isolating valves, for connection of drums to the drum changeover device.

e. The liquid chlorine pipe work interconnecting the drums, changeover panel and the liquid

chlorine evaporator shall be safeguarded by a pressure relief system.

f. The pressure relief system shall comprise locked open isolating valves, bursting disc

assembly, pressure gauge with adjustable alarm contacts and relief vessel.

g. The bursting disc shall preferably be made of nickel sheathed in PTFE, or approved

equivalent.

Chlorine Solution Delivery Pipe Work and Valves

a. The Bidder shall provide all necessary rigid pipe work, valves and fittings for the delivery

of the chlorine solution from chlorinator injectors/manifold to the points of application.

b. The chlorine solution delivery lines shall be of Mild steel ebonite lined or approved

equivalent. The pipe work shall be adequately protected externally against corrosion and installed complete with necessary supports, thrust restraints, etc., and incorporate sufficient flexibility to allow for any thermal expansion effects.

c. When selecting material for pipe work, consideration shall be given to the deteriorating

effect on some synthetic materials due to the action of ultra-violet rays. Where such materials are employed, particularly in the case of uPVC, pipe work shall be shielded from direct sunlight.

d. The valves in the chlorine solution pipe work shall be of forged steel body, monel

spindles, stainless steel seats and PTFE gland packing or carbon steel, monel plug, PTFE sleeved plug, flanged, or approved equivalent. Locking devices and position indicators shall be provided. The diaphragm of the valves shall be PTFE faced with a backing of viton synthetic rubber (co-polymer of vinylidene fluoride and hexa fluoropropylene).

Page 295: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

80 of 267

e. Test pressure for the solution delivery pipe work, valves and specials shall be twice the working pressure or 1 1/2 times the shut-off head of the injector motive water pumps, whichever is higher.

Chlorine Solution Distributors & Injection Fittings

a. Where chlorine solution is to be dosed into flow in an open channel, chamber or

downstream of a hydraulic jump it shall be applied using a chlorine solution distributor.

b. The distributor shall be either tube drilled ceramic tubular diffuser, designed to ensure

uniform distribution of the specified flow rate of chlorine solution at the point of application.

c. The materials of construction of the distribution and sealing shall be compatible with

3500 mg/l chlorine solution at operational fluid temperature up to 33°C. Porous ceramic material where used shall be inert, and non-toxic, uPVC tube where used shall conform to BS: 3505 Class 'E'.

d. The distributor shall be adequately supported and designed to withstand the stream

velocity at the point of application and any flow or turbulence induced vibrations.

e. Where chlorine solution is to be dosed into flow in pipe lines it shall be applied using an

injection fitting/device designed for specified duty flow rate.

f. The injection tube shall extend across the pipe bore and be supported with ends located in

diametrically opposite flanged branches.

g. The injection fitting shall be installed in diametrically opposite flanged branches with

their axis making an angle of 45° with the horizontal in a plane normal to the direction of flow within the pipe line.

h. The injection fittings shall be adequately supported and designed to withstand the flow or

turbulence induced vibrations. Provisions shall include necessary support brackets also.

i. Chlorine solution distributors or injection fittings shall be supplied complete with

necessary non-return and isolation valves.

Tonner Roller Supports

• These supports shall be used to hold the Tonner containers securely in place and also to

facilitate the positioning of the Tonners, so that inbuilt valves (Gas side and Liquid side) lie one over the other vertically.

Page 296: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

81 of 267

• The Roller support body shall be made of Cast Iron, rollers shall be Cast Iron/Mild steel and Bushes shall be of Brass.

Lifting Beam with Hooks

• To facilitate safe lifting of standard Tonner container, the lifting Beam with hooks shall

be provided. The Beam shall hold the Tonner securely while hoist and Trolley are used to lift, place and position the containers. The Beam material shall be Cast Iron/Mild steel.

The Tonner Room

a. Storage shall be provided for chlorine tonners sufficient for at least one month’s usage at

normal rates of application.

b. The system shall be designed to prevent freezing of the liquid chlorine at the maximum

rate of withdrawal.

c. Tonners on line, tonners on standby and full and empty tonners, shall be stored separately

in the tonner room.

d. Four sets of tonner rollers shall be provided. Tonners not in use shall be stored on

concrete cradles.

e. An overhead single girder electric travelling crane of adequate capacity shall be provided

in the chlorine tonner room for the following functions:

• offloading (and reloading) of tonner from trucks;

• handling of tonners within the storage area.

f. The system shall serve the tonner store width over the entire length including the loading/unloading area.

g. The hoist and traverse speeds shall be as follows ;

• Long traverse speed : 5m/min

• Cross traverse speed : not more than 5m/min

• Slow lifting speed : 1m/min

• High lifting speed : 5m/min

h. The container lifting beam shall be specifically designed for handling chlorine containers and equipped with necessary shackles and hooks.

Page 297: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

82 of 267

i. Operation of crane system shall be from the floor level using independent push button pendant controls operating at a 230 volt 50 Hz AC supply.

j. Two lifting beams shall be provided (a duty and a spare) and a one tonner weigher to be

suspended from the crane hoist.

k. When the pressure in the duty chlorine tonner falls to less than 1 kg/cm2 the automatic

changeover device shall operate to isolate the empty tonner and to bring the full standby tonner on line.

l. A pit and alkali absorption system shall be provided to contain and neutralise chlorine in

the event of a leak. The system shall comprise a pit located in the tonner storage room and accessible by the overhead crane system. The pit shall be surrounded with removable guard railing. The pit shall be kept full with a neutralising solution of lime. The pit shall be capable of holding side by side two chlorine tonners. A provision shall be made to drain the pit.

m. Special consideration shall be given to any floor drainage system in the tonner building;

adequate traps shall be provided to ensure that chlorine gas cannot escape. All leader tubes carrying cables or pipes out of the building shall be sealed at either end to prevent any chlorine gas leaking out.

Chlorination Room

• The chlorination room shall be constructed adjacent to the tonner room but with no

interconnecting door or other form of access.

• Gas lines from the tonner room into the chlorination room shall run in ducts to be sealed

after installation and prior to commissioning.

Chlorine Leak Detectors a. Not less than three chlorine gas leak detectors shall be provided each, with a single

detector cell. At least two sensors shall be located in the chlorine tonner storage room and at least one sensor in the chlorination room.

b. The chlorine leak detectors in the tonner room shall be mounted at each end of the tonner

room.

c. The chlorine leak detectors shall have two adjustable alarm levels sensitive to chlorine

concentrations above 1 mg/m3. The range of adjustment of alarm levels shall facilitate selection of the following alarms:

i. low level

ii. high level

Page 298: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

83 of 267

d. The low level alarm shall:

i. initiate a local audible and visual alarm;

ii. start the ventilation fans in the tonner and chlorination rooms;

iii. Raise an alarm at the local control panel and at the central MMI.

e. The high level alarm shall:

i. initiate local audible and visual alarm;

ii. initiate audible and visual alarms outside the buildings (the alarm shall be

sufficiently loud to be heard in all buildings at the STP);

iii. raise an alarm at the local control panel and at the central MMI;

iv. shut down the chlorination systems;

v. Stop the tonner room and chlorination room exhaust fans.

f. The chlorine detectors shall have self-checking circuitry and detector failure alarms shall be provided at the local control panel and central MMI.

g. Detector failure alarms shall not be combined with the leak alarms.

h. Statutory warning notices relating to the storage and handling of chlorine shall be

provided. The signs shall be pictorial and provided in Kannada and English.

Chlorine Plant Ventilation

a. The Container Store area and the Chlorinator Room shall be made reasonably gas tight

and provided with separate forced ventilation facilities. A ducted system shall be provided with a number of fan units such that even though any one unit fails reasonable ventilation would still be effected.

b. Inlets to the exhaust duct system shall be placed at the floor level. The exhaust system

shall directly discharge air to atmosphere outside the building.

c. Each exhaust system shall include two sets of fans, one for continuous running giving 4

air changes per hour and the other designed for intermittent running giving 20 air changes per hour.

Page 299: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

84 of 267

d. Movable louvers shall be provided on the inlet and outlet ports of the forced air circulation system. The louvers shall open automatically when the ventilation is started and close by gravity when stopped. Contactor starters for operating ventilation equipment shall be provided in the motor control center in the Office and Control Room as well as local to the units, and be subject to shut-down control from leak detection units.

e. All necessary ducting, self-closing louvered outlets, exhaust fans with external mounted

control gear indicator lights shall be provided under the Contract. Special attention shall be given to materials of construction and particularly to motor protection.

Chlorine Container Weighing Equipment:

a. Equipment provided for weighing chlorine containers shall be spring type loaded with

circular scale indicator and shall conform to IS: 1438.

b. The weigher shall be designed suitable for suspension from the load hook of Lifting

Beam to be properly secured to the crane or hoist.

c. The weigher shall be suitable for operation with a working load of not more than 2000

kg. The indicator scale shall be calibrated in 5kg divisions, with the zero at the top of the scale and the pointer vertical with no load. The pointer shall incorporate means of tare adjustments up to 20% of the indicator scale. The indicator dial shall be slanted from the vertical plane so as to minimize parallax errors when the indicator is read from the floor with the unit hoisted to a high level.

d. The weigher shall have an overall accuracy of better than 10% of the full scale deflection

and the unit shall be unaffected by the temperature variations in the range 4 to 50°C.

e. Bidders are encouraged to propose Digital type weighing Equipment and shall be subject

to approval by the Engineer.

Safety Equipment:

a. Materials and equipment necessary to ensure the safety of personnel operating the

chlorination plant and others shall be provided.

b. The equipment shall include inter alia:

• Two sets of approved self-contained breathing apparatus, each comprising an air set,

carrying harness, face mask and valves and ancillary equipment. Each set shall be provided with three 1 200 liter capacity, 140 mm diameter, and air cylinders;

Page 300: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

85 of 267

• Two sets of approved positive airline breathing apparatus, each comprising body harness, face masks and valves and 30 m of airline. One air trolley, comprising wheeled frame with two air cylinders, control manifold, airline hose and hose winding drum. Two spare cylinders suitable for changeover shall be provided;

• one portable electric motor driven air compressor for recharging air cylinders,

complete with quick-release air hose couplings;

• Two `instant action' resuscitators.

• Four sets of safety clothing in various sizes, each comprising PVC overalls,

wellington boots with steel toe caps, goggles, gloves and safety helmets.

c. Each set of safety equipment shall be mounted in a glass-fronted, non-locking PVC

coated steel cabinet in approved locations on the outside of the Chlorine building.

d. Two emergency showers shall be provided and shall be installed outside on either side of

the Chlorine drum room.

e. Each shower shall be operated automatically by a quick acting hand or foot valve.

f. Four eyebaths shall be supplied. Two eyebaths shall be adjacent to each of the showers.

The eye bath unit shall be fitted with fine mesh filters with built-in pressure regulating device to ensure a safe rate of flow to prevent foreign matter being further embedded into the eye and instead flush away contamination

g. Water for the showers, etc, shall be drawn from the service water supply.

Chlorine Residual Monitors

a. Chlorine residual monitors shall be provided at the plant outlet.

b. The monitor installation shall be located in a covered location easily accessible for

viewing and maintenance and shall be provided complete with sample pumps as necessary to ensure the continuity of the sample.

c. The sampling pipe work complete with isolation valves etc. shall be designed to ensure

the sample reaches the monitor in a time not greater than 1 minute. The monitor drainage pipe work shall permit the visual checking of the presence of flow and shall discharge to the foul drain. Sample sewage not passed through the monitor shall be returned to the process.

Page 301: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

86 of 267

d. The residual signals shall be displayed at the local control panel.

e. High and low chlorine residual levels shall raise alarms at the local control panel.

Fire Extinguishers

• Portable fire extinguishers are to be provided for all units as per the requirement of

Tariff Advisory Committee (TAC) or meeting the requirement of local regulations whichever is stringent.

• All the extinguishers shall be of TAC approved.

Submersible Mixer

a. The submersible mixer shall be capable of providing a velocity gradient in the range of

500 to 1000 mm/sec.

b. The mixer shall have a self-cleaning propeller optimized for effective mixing and

vibration-free running.

c. The mixer shall be driven by a high efficiency 3 phase motors IP68 Class F. Motor shaft

and rotor shall be dynamically balanced.

d. Bearings shall be lubricated-for-life with a calculated life of more than 100,000 operating

hours.

e. The mixers shall have the flexibility to be located at different depths and thereby

avoiding dead zones.

f. The mixer shall be provided with the following:

• Lifting frame with a winch which can be dismantled, fee standing with adjustable

boom length.

• Mounting socket for free standing hoist suitable for wall mounting.

• Guide for floor fixing components and support brackets for wall mounting.

• Stainless steel rope for raising and lowering the mixer.

Page 302: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

87 of 267

• Rope block for holding the stainless steel rope where the lighting frame is used in

different locations.

• Support rope for reliable support and guidance of power supply cable.

• Support clamps and hooks to support the power supply cable in such a manner that it

is not under strain.

• The propeller, propeller shaft and motor housing shall all be of SS 316.

Sluice Gate

Design Requirements and Construction Features

a) The construction of sluice gates shall be in accordance with the specification and

generally as per AWWA C 560-00 /IS: 13349-1992 or other applicable standard. All sluice gates shall be of the rising spindle type.

b) The sluice gates shall be capable of performing the duties set in this Specification without

undue wear or deterioration. They shall be constructed so that maintenance is kept to a minimum. All parts of sluice gate, including lifting mechanism components shall be designed for the heads required with a minimum safety factor of five.

Frame

• The frame shall be of the flange back type and shall be machined on the rear face to bolt

directly to the machined face of the wall thimble.

Guide

• Guide shall be bolted to the frame or cast integrally with it and shall be machined on all

bearing and contact faces.

• The length of guide shall be such that it should support the gate upon the horizontal line of

stem nut pocket.

• Arrangement shall be made to prevent lateral movement of bolted on guides. They shall be

capable of taking the entire thrust produced by water pressure and wedging action. Wedges or wedge facings shall be attached securely to the guides at points where, in the closed position, they will make full contact with the wedging surfaces on the slides.

Page 303: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

88 of 267

Seating Faces

• Seating faces shall be made of full width, solid section; dove-tail strips of stainless steel.

They shall be secured firmly by means of counter sunk fixings in finished dove-tail grooves in the frame and slide faces in such a way as to ensure that they will remain permanently in place, free from distortion and loosening during the life of the sluice gates.

• The faces shall be of ample section and finished smooth.

Wedging Devices

• Sluice gates shall be equipped with adjustable side, top and bottom wedging devices as

required providing contact between the slide and frame facing when the gate is in closed position. All faces shall be machined accurately to give maximum contact and wedging action. Wedges shall be fully adjustable with suitable adjusting screws and locknuts and so designed that they will remain in the fixed position after adjustment.

Lifting Mechanism

a. Sluice gate shall be operated through suitable lifting mechanism which shall

incorporate suitable gearing if required.

b. Lifting mechanism shall be suitable for operation by one man under all

conditions. Lifting mechanism shall incorporate a strong locking device suitable for use with a padlock or padlock and chain.

c. The manual Bidder shall be of the hand wheel crank operated type and shall have

a lift nut threaded to fit the operating stem. Crank shall be removable. Ball or roller thrust bearings shall be provide above and below the flange on the lift nut to take the load developed in opening and closing the gate with a torque of 14kg-m on the crank. Fittings shall be provided to lubricate gears and bearing.

d. The design of the lift mechanism of the hand operated gates shall be such that the

slide can be operated with a torque of not more than 7 kg-m on the Bidder after the slide is unseated from wedges based on the operating head. The maximum crank radius shall be 380mm.

e. All gears and bearings shall be enclosed in cast iron housing with labyrinth seals.

The lifting mechanism shall be with a cast iron pedestal, machined and drilled to receive the gear housing and suitable for bolting to the operating floor. The gates shall close with clockwise rotation of the crank. The direction of rotation to close the gates shall be indicated on the lift mechanism.

Page 304: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

89 of 267

f. A suitable means shall be provided for lubricating the stem threads directly adjacent to the lift nut. An inspection cover shall be provided to access the lift nut and gearing.

g. Stem shall be provided with a GI pipe cover shall be fixed to the headstock.

h. Lift mechanism shall be provided with a suitable position indicator to show the

position of the gate at all times.

Wall Thimbles

a. Wall thimbles shall be made of cast iron and shall be supplied along with the gate. The

wall thimbles shall provide a rigid mounting, designed to prevent warping of the gate frame during installation.

b. The cross section of the thimble shall have the shape of the letter ‘F’. The front, or

mounting flange, shall be machined and shall be drilled and tapped to the same template used for its particular gate frame. The frame shall be attached to the thimble with bolts of studs. The depth of the wall thimbles shall not be less than 300mm.

c. To permit entrapped air to escape as the thimble is being encased in concrete, holes not

lesser than 35mm diameter at not more than 600 mm span, shall be cast or drilled in each entrapment zone formed by the reinforcing ribs or the flange and water stop.

Lifting Lugs

• Lifting lugs shall be provided for all gates.

Flush Bottom Seal

a. When sluice gates are provided with flush bottom seals, the wedging device and facing

along the bottom edge of the slide and frame shall be omitted.

b. A solid square cornered, resilient rubber seal shall be provided on the bottom facing of

slide. The seal shall be securely fastened to the bottom face of the slide by a retainer bar and corrosion resistant metal fasteners. The top surface of the bottom facing of frame shall be flush with invert of the gate opening. Bottom facing of the slide shall be accurately machined to make contact with the seal when the slide is closed.

c. Suitable arrangement shall be made for on all the sluice gates or actuators such that the

portable electric actuator is capable of operating all sizes of sluice gates.

Page 305: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

90 of 267

d. 1 No. of Portable type of electric actuator for closing and opening of sluice gates shall be provided at each STP, so that the closing and opening operation time shall be maximum of 10 minutes

e. Suitable arrangement shall be made on all the sluice gates or actuators such that the

actuator is capable of operating all sizes of sluice gate, under this contract.

f. Pipe hood shall be provided on the top of headstock to protect the spindle from damage,

dirt, dust, water etc. The hood shall be made of transparent fracture resistant polycarbonate material. The hood shall have vent holes to prevent condensation.

g. The material of construction of sluice Gate shall be as follows:

Component Material

Wall Thimble Cast Iron : IS 210 Gr. FG 200

Frame and Slide Cast Iron : IS 210 Gr. FG 200

Seating faces Stainless Steel: ASTM Countersunk fixing A276 type 316

Wedge Stainless Steel : ASTM A743 CF8M or SS316

Stem Stainless Steel: ASTM extension A276 type 316

Stem guide bracket Cast Iron : IS 210 Gr. FG 200

Stem nut Stainless Steel : ASTM A743 CF8M

Stem Coupling Stainless Steel : ASTM A276 type 316

Fasteners, anchor Stainless Steel : ASTM A276 type 316

Lifting mechanism, Pedestal gear house cover and stem guide

Cast Iron : IS 210 Grade FG 200

Lift nut Bronze : ASTM B 148 (CA952, CA954 or CA958)

Headstock Body Cast Iron : IS 210 Gr. FG 200

Open channel Gates

The manufacture of open channel gates shall be in accordance with the manufacturer’s standard.

All open channel gates shall be of the rising spindle type& manually operated

Open channel gates shall be tested as per manufacturer’s standard.

The open channel gates for pumping stations shall be CI sluice gates. All other gates shall be aluminum gates.

The material of construction shall be as follows.

Page 306: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

91 of 267

Components Material Specification Grades

Gate frame, shutter, Headstock, Flush bottom seal support bar, Stop nut.

Cast Iron IS: 210 – 1993 FG: 260

Sealing faces/ Seat facings Stainless Steel ASTM A276 AISI: 304, 316

Resilient rubber seal Natural Rubber EPDM Rubber Neoprene Rubber

Seal retainer bar Stainless Steel ASTM A276 AISI: 304, 316

Stem / Spindle Stainless Steel ASTM A276 AISI: 304, 316

Operating Nut/ Stem Nut Leaded Tin Bronze IS: 318 – 1981 LTB 1, LTB 2

Fasteners Stainless Steel ASTM A276 AISI: 304, 316

Anchor Bolts Stainless Steel ASTM A276 AISI: 304, 316

Yoke Mild Steel IS: 2062 – 1992

Grade A

Lifting Hoist

Electrically Operated Hoists

a. Electric hoists shall be complete with hoisting motor, wire rope drum, wire rope, hook,

necessary gearing, sheaves, electromagnetic brake for hoisting motion, weather & dust-proof push button station, Bidder panel, all wiring, limit switches, etc.

b. Electric hoists shall conform to IS: 3938 and shall be suitable for outdoor application. All

the parts of the hoist shall be designed to withstand surrounding atmospheric conditions without any deterioration.

c. Rope drums shall be either cast or welded to sustain concentrated loads resulting from

rope pull.

d. Drums shall be machine grooved right and left with grooves of a proper shape for the rope

used.

e. Gears shall be cut from solid cast or forged steel blanks o r shall be of stress-relieved

welded steel construction or built-up from steel billets and welded together to form a one piece gear section.

Page 307: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

92 of 267

f. Hoist ropes shall be extra flexible, improved plough steel rope with a well lubricated

hemp core and having six strands of 37 a wires per strand with minimum ultimate tensile strength of 1.6 x 106 KN / Sq.m.

g. Hooks shall be solid, forged, heat treated alloy or carbon steel of rugged construction of the

single hook type and provided with a standard depress type safety latch.

h. Hoisting motor shall be equipped with electrically released, spring set, friction shoe type

brakes having torque capable of holding 125% of the full rated hook load. Brake shall apply when either the motor controller or the main power switch is in ‘OFF’ position or in the event of power failure.

i. Drive motors shall be designed for frequent reversal, braking and acceleration and shall

be as per IS: 325. Pendant control switch, controllers and resistors, controls, electrical protective devices, cables and conductors, earthing guards etc. shall be as per IS:3938. Limit switches shall be provided for over-hoisting and over-lowering.

j. The electric hoists shall be of Class II duty.

k. 25% overload test, speed tests, limit switch tests and brake test shall be conducted for the

hoist and trolley at manufacturer’s works.

Hand Operated Hoists and Trolleys

a. Manual hoists shall be complete with hand-chain, trolley, pulley block, hook, hand and

load chains, brake and other accessories. They shall comply with the latest applicable standards, regulations and safety codes in the locality where equipment will be installed.

b. Each hoist shall be operated on a monorail (I-Beam). The factor of safety shall not be less

than 5. The load chain may be heat-treated to give ductility, toughness and conforming to I.S. 3109/B.S. 1663/B.S. 3114. The load wheel is to be made from heavy duty malleable castings. The hand chain is to Conform with B.S. 6405:1984 and hand chain wheel may be made from pressed sheet steel with roller type guarding. Gears shall be cut from solid cast or forged steel blanks or shall be stress – relieved welded steel construction. Pinions shall be of forged carbon or heat treated alloy steel. Strength, Quality of Steel, heat treatment, face, pitch of teeth and design shall confirm to BS-436, BS-545 and BS-721. Spur and helical gears must comply with B.S. 436 and worm with B.S. 721. Bearing must be ball and roller type conforming to I.S. 2513/B.S.2525-32:1954. Proper lubricating arrangements are to be provided for bearings and pinions. The brake for the lifting gear

c. shall be automatic and always in action.

d. The proof testing of each chain pulley block is to be carried out as per latest applicable

standards. The safe working load is to be marked in such way that is clearly visible from the operating level.

Page 308: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

93 of 267

Manually Operated Traveling Crane

a. The crane bridge shall consist of a single bridge girder carrying two wheels at each end of

the span. Steel used shall be tested quality steel conforming to IS 2062. The girder shall have enough strength to carry the test load without causing undue stress or deflection.

b. The long travel bridge wheels shall be rim toughened, heat treated carbon steel or low

alloy steel or C.I. They shall be double flanged type. The wheels shall have antifriction ball/roller bearings. The wheels shall be machined on their treads to match the runway rail section. The bridge shall have a geared shaft and pulley connecting to opposite wheels of the span, to achieve the long travel motion of the bridge, by means of a chain. The runway rails of adequate strength and rigidity, rail clamps and other accessories for mounting the rails and suitable end stops for the bridge shall be supplied by the Bidder.

Trolley and Chain Pulley Block

a. The chain pulley block shall be operated on the lower flange of the bridge girder.

b. The load chain shall be made of alloy steel as per IS: 3109. It shall be heat treated to give

ductility and toughness so that it will stretch before breaking. It shall be of welded construction with a factor of safety not less than 5.

c. The hand chains for the hoisting and traverse mechanism shall hang well clear of the

hook and both the chains shall be on the same side. The hand chain wheel shall be made from pressed sheet steel and shall be provided with roller type guarding to prevent snagging and fouling of the chain.

d. All the gearing shall be totally encased. Proper lubricating arrangements shall be

provided for bearings and pinions. Gears shall be cut from forged steel blanks. Pinions shall be of heat treated alloy steel. Gears shall be as per BS 436/IS: 4460.

e. The trolley track wheels shall be rim toughened, heat treated carbon steel or low alloy

steel or C.I. and shall be single flanged and shall have antifriction ball bearings. The wheels shall be machined on their treads to match the flanges of the track joints.

f. The traveling trolley frame shall be made of rolled steel conforming to IS: 2062. The side

plates of trolley frame shall extend beyond wheel flanges, thus providing bumper protection for the wheels. The two side plates shall be connected by means of an equalizing pin.

g. Axles and shafts shall be made of carbon steel and shall be accurately machined and

properly supported.

Page 309: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

94 of 267

h. The lifting hooks shall be forged, heat treated alloy or carbon steel of rugged construction. They shall be of single hook type provided with a standard depress type safety latch. They shall swivel and operate on antifriction bearings with hardened races. Locks to prevent hooks from swiveling shall be provided. Hook shall be as per BS: 2903/IS: 3815

i. The brake for the lifting gear shall be automatic and always in action. It shall be of screw

and friction disc type self-actuating load pressure brake. Brakes shall offer no resistance during hoisting.

j. Ratchet and Pawl mechanism shall be provided to arrest the full load from lowering due

to gravity. The ratchet and pawl shall be of steel, hardened and tempered so as to attain required wear resistance and toughness.

Electrically Operated Overhead Traveling Crane

a. The crane shall be electrically operated, bridge type complete with all accessories

including down shop conductor, crane rails and fixtures, and shall conform to BS 2573, IS:3177 or relevant internationally approved standards.

b. The crane bridge shall consist of bridge girders on which a wheeled trolley is to run. The

bridge trucks and trolley frames shall be fabricated from structural steel. Access walkway with safe hand railing as is required along the full span length of the bridge girder. Steel shall be tested quality conforming to ASTM A36 except that, plates more than 20 mm thick shall conform to IS: 2062, BS: 4360 or relevant internationally approved standards. The bridge shall be designed to carry safely the loads specified in IS: 807, BS: 2573 or relevant internationally approved standards. All antifriction bearings for bridge and trolley track wheels, gear boxes and bottom sheaves on hook shall be lubricated manually by hand operated grease pump through respective grease nipples.

c. Wheel base and structural frame of the wheel mounting of the end carriages shall be

designed so as to ensure that the crane remains square and prevent skewness. Bridge and trolley track wheels shall be of forged steel and shall be double flanged type. The wheel diameter and rail sizes shall be suitable for the wheel loads. The crane rails shall be manufactured from wear resistant austenitic manganese steel. Mountings of the wheels shall be designed to facilitate easy removal for maintenance. Walkways shall be at least 500 mm clear inside width with a 6 mm thick non-skid steel plate surface. Steel rail stops to prevent rails from creeping and trolley from running off the bridge shall be abutted against ends of rails and welded to the girders. Bridge and trolley stops to match the wheel radius shall be provided before the buffer stops.

d. All exposed couplings, shafts, gear, wheels, pinions and chain drives etc. shall be safely

encased and guarded completely to prevent any hazard to persons working around. All bearings and gears shall have a design life of 100000 hours. Electro-magnetic and hydraulic thrust or brake shall be provided for the main hoist. One electro-magnetic brake shall be provided for each of the cross travel and long travel motions.

Page 310: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

95 of 267

e. Hook shall be solid forged, heat treated alloy or carbon steel suitable for the duty service.

They shall have swivels and operate on ball thrust bearings with hardened races. The lifting hooks shall comply with the requirements of IS 8610 or BS: 2903 / BS: 3017 or relevant internationally approved standards and shall have a safety latch to prevent rope coming off the hook.

f. Hoist rope shall be extra flexible, improved plough galvanized steel rope with well

lubricated hemp core and having six strands of 37 wires per stand with minimum ultimate tensile strength of 1.6 X 106 kN/m2 of Right Hand Ordinary (RHO) laid construction. The ropes shall have a 6:1 safety factor on the specified safe working load, and shall conform to IS: 2266. Rope drums shall be grooved and shall be either cast iron or cast steel of or welded steel conforming to IS: 3177, BS: 466 or relevant internationally approved standards.

g. Gears shall be cut from solid cast or forged steel blanks or shall be stress relieved welded

steel construction. Pinions shall be of forged carbon or heat treated alloy steel. Strength, quality of steel, heat treatment, face, pitch of teeth and design shall conform to BS: 436, IS: 4460 and BS: 721 or relevant internationally approved standards.

h. Name Plate showing the capacity, year of manufacture and rated capacity of hoist, in

figures not less than 150 mm height, shall be placed on each side of the crane girder.

i. The maximum deflection under full load shall not exceed 1/900 of the span (as per IS:

3177).

j. All accessory and auxiliary electrical equipment including drive motors, electrically

operated brakes, controllers, resistors, conductors, insulators, current collectors, pendant push button station, protective devices, operating devices, cables, conduits, etc. necessary for the safe and satisfactory operation of the crane shall be provided.

k. Power to the crane shall be provided by down shop conductors manufactured from high

conductivity hard drawn copper. Conductors shall be completely shrouded such that they have no exposed current carrying surfaces. Pendant type push button station shall be sheet steel enclosed and shall comprise the following push buttons and indicating lamps:

a. `Start’ and `Stop’.

b. Long travel - `Right’ and `Left’.

c. Cross travel - `To’ and `Fro’.

d. Hook - `Hoist’ and `Lower’.

e. Red indicating lamp for supply `ON’ indication.

Page 311: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

96 of 267

l. Pendant type push button shall be supported independently of the electrical cable and shall be earthed separately, independent of the suspension. Automatic reset type of limit switches shall be provided to prevent over travel for each of the following:

a. For `UP’ and `Down’ motions of the hook b. Long travel motion c. Cross travel motion

m. Crane structures, motor frames and metal cases of all electrical equipment including

metal conduit and cable guards shall be earthed. All motors, brakes, limit switches, panels, drum controllers, resistor unit sets shall be provided with two studs for earthing.

n. All motors shall be of the quick reversing type with electric mechanical brakes suitable

for the duties specified. All movements shall be electrically powered suitable for operating with the hook loaded. Facilities shall be provided for the accurate location of the hook by means of `inching' the cross travel and down shop travel motions.

o. Sufficient slings, ropes, shackles, lifting beams, etc shall be supplied to handle all items

of plant covered by the crane. They shall be labeled or marked with the Safe Working Load (SWL) and the purpose for which they are intended.

p. The crane, and all slings, ropes, shackles and other lifting equipment supplied shall be

tested by the manufacturer at his works. The tests shall be carried out at 125% of Safe Working Load, and Test Certificates shall be supplied.

q. The Bidder shall include with the cranes all necessary contactors, control cubicles and

protection equipment necessary to operate the crane and provide adequate electrical protection against overload, phase and earth fault and fail-safe protection in the event of an interruption in the power supplies. All access ladders and platforms necessary to carry out maintenance and repairs shall be provided and installed by the Bidder.

r. All electrical equipment shall be fully tropicalised.

s. Site tests shall be carried out by the Bidder who shall supply the necessary materials for

the test load. The test load shall be removed from site by the Bidder after successful tests have been carried out.

Jib cranes • Fixed Jib Cranes shall be provided in for lowering/removal of equipments/parts to/from

the reactor tank floor and transferring the same outside the reactor area. The Crane capacity shall be 1.25 times the maximum weight to be handled or 1.5 Tonnes, whichever is more. The lift and reach of the cranes shall be suitable for the equipments/parts to be

Page 312: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

97 of 267

handled. The crane shall be capable of being swiveled by 360°. All materials used in the construction shall be corrosion resistant. Mild steel used shall be galvanised. Ropes, chains and pulleys shall be of stainless steel construction. Hardware shall be of SS 316. The Jib crane shall also be provided for handling submersible pumps in reactor tank, thickened sludge sump (sludge holding tank).

19 Electric Actuator (wherever required)

All actuators shall be motorized type and local controls shall be protected by a lockable cover.Each actuator shall be adequately sized to suit the application and be continuously rated to suit the modulating control required. The gearbox shall be oil or grease filled, and capable of installation in any position. All operating spindles, gears and headstocks shall be provided with adequate points for lubrication.

The valve actuator shall be capable of producing not less than 1½ times the required valve torque and shall be suitable for at least 15 minutes continuous operation.

The actuator starters shall be integrally housed with the actuator in robustly constructed and totally enclosed weatherproof housing. The motor starter shall be capable of starting the motor under the most severe conditions.

The starter housing shall be fitted with contacts and terminals for power supply, remote control and remote positional indication.

19.1. Each starter shall be equipped as follows:

a. 2 No. Three phase magnetically operated line contactors with no-volt release and

electrical and mechanical interlock.

b. 1 No. Three phase thermal cut-out device.

c. 1 No. Control circuit transformer fully protected by fuses on primary and secondary

circuits.

d. 1 No. Set of “Open”, “Close” and “Stop” buttons.

e. 1 No. Local- Off-Remote switches with padlocking facilities.

f. 1 No. Set of torque and limit switches for “Open” and “Close” positions.

g. 3 No. Sets of auxiliary limit switches in each direction.

h. Valve position indicator and hand wheel for manual operation.

i. Reduction gear unit

19.2. Each actuator shall be equipped as follows:

a. AC electric motor with engage/disengage clutch mechanism of the dry type.

Page 313: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

98 of 267

b. Reduction gear unit (with thrust bearing if required) c. Torque switch mechanism d. Limit switch mechanism e. Geared hand wheel for manual operation of valve. f. Valve position indicator – open/closed g. Auto-Manual lever with suitable locking arrangement h. Valve position transmitter i. Reversing contactor starter complete with overload relays of suitable range and j. adequately rated control fuses k. Actuator with integral starter shall have selection between local/remote operation l. Local control switch/push buttons m. 415 V/110 V AC control transformer n. A white lamp for supervision of main supply to be provided locally. o. A potential free contact shall be provided to annunciate over-load trip/main supply failure

on remote panel p. Provision for local as well as remote operation.

19.3. Special Features

• Two (2) nos. interposing relays for matching the control voltage of remote commands. • The motor shall be specially designed for valve operation, combining low inertia with a

high torque and with linear characteristics. • All motor actuators shall be provided with visible local valve position indicators mounted

on the actuator assembly itself. • The torque switch shall function to stop the motor on closing or opening of the valve, on

actuation by the torque when the valve disc is restricted in its attempt to open or close. A minimum of two (2) torque switches, one for closing direction and one for opening direction shall be provided.

• The non-adjustable limit switches shall stop the motor and give indication when the disc has attained the fully open or close position. Provision shall be made for indication of stuck or jammed valve.

• All wiring connections from the various switches shall be brought out on to separate terminal box mounted on the valve, having liberal space for wiring and making connection.

• The terminal box shall be suitable for outdoor use and shall be weather-proof and dust tight.

20 Pipe Work

Page 314: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

99 of 267

All sewage pipes inside the plant premises shall be made of DI internally lined with SFRC lining. The treated and chlorinated sewage should be disposed off to the disposal site by closed RCC pipe or DI pipe. In general, the colour code for piping shall be blue for potable water, white for air, red for gas and as received colour from manufacturer for all other sewage pipes.

The pipe works for the plant involves procuring, supply, laying and jointing of suitable size electrically welded steel, cast iron, ductile iron, u PVC, RCC and PSCC pipes along with matching specials etc. as required. All yard piping inside the plant shall be cast iron or ductile iron. All pipe work and fittings shall be a class rating in excess of the maximum pressure attained in service including any surge pressure. The pipe work installation shall be so arranged to offer ease of dismantling and removal of pumps or major items of equipment. CI/DI Piping above ground level shall be only flange jointed and adequately provided with structural/ masonry supports.

Stainless steel AISI 304 expansion bellows which can take radial and axial misalignment of minimum one percent of the valve nominal size and tie bolts shall be provided. All pipe work shall be adequately supported with purpose-made fittings. When passing through walls, pipe work shall incorporate a puddle flange. Flange adapters and union shall be fitted in pipe work runs, wherever necessary, to permit the simple disconnection of flanges, valves and equipment.

The Bidder shall be responsible for ensuring that the internal surfaces of all pipe work are thoroughly cleaned before and during erection and commissioning. Cleaning shall include removal of dirt, rust, scale and welding slag due to site welding. Before dispatch from manufacturer’s works, the ends of the pipe, branch pipes etc., shall be suitably removed until immediately prior to connections adjacent pipes, valves or pumps.

All mallbore pipes shall be blown through with compressed air before connection is made to instruments and other equipment. No point of passage of pipes through floors or walls shall be used as a point of support, except with the approval of Employer’s representative. All underground-buried mild steel piping unless found otherwise necessary, shall be protected by the application of hot coal tar enamel and fiberglass wrapping. The coating shall consist of one coal` tar primer one coat, wrapping of fiber glass one more coat of enamel and the final wrap of enamel impregnated fiber glass.

All water supply plumbing pipelines shall be of UPVC class 4 thick-walled inside the premises in concealed piping. They shall be GI class B in external locations and either anchored externally with SS AISI fasteners or appropriately buried below the ground with a sand cushion of 20 cm all round. All sanitary piping shall be of UPVC class 4 suitably buried below the ground with a sand cushion of 20 cm all round. Changes in direction on

Page 315: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

100 of 267

the ground shall be achieved with inspection chambers of 45 cm x 45 cm and heavy-duty CI/Steel reinforced fiberglass chamber covers.

21.1. Galvanized Iron pipe

The procurement, supplying, laying, jointing and testing at works and site of Galvanized Iron (G.I.) pipes and fittings shall be in accordance with IS 1239 (Part I and II) and its latest revisions. The general requirements relating to the supply of mild steel tubes shall conform to IS 1387. The sulphur and phosphorus requirements in steel shall not exceed 0.05 percent each. The galvanizing of the pipes shall be as specified in IS 4736. The zinc coating shall be uniform adherent, reasonably smooth and free from imperfections.

The pipes shall be galvanized before screwing. All screwed pipes and sockets shall have pipe threads conforming to the requirements of IS 554. Gauging in accordance with IS 8999 shall be considered as an adequate test for conformity of threads of IS 554. Screwed tubes shall have taper threads while the sockets shall have parallel threads.

The specifications for G.I. pipes shall be generally in accordance with Clause 15.4 of standard specifications. The tolerances on the length of pipes shall follow clause 11.0 of IS 1239 (Part I). The fittings for G.I. pipes shall be of mild steel tubular or wrought steel fittings conforming to I.S. 1239 (Part II). The laying of G.I. pipes and fittings shall follow the relevant I S code of practice. These pipes shall be used for drinking water supply for the office and laboratory buildings. The pipes shall be painted with two coats of anticorrosive bit mastic paint.

Testing of G.I. pipes

Hydrostatic test shall be carried out at works at a pressure of 5 M Pa, maintained for at least 3 sec and shall not show any leakage in the pipe. The tensile strength of length or strip cut from selected tubes, when tested in accordance with IS 1894 shall be at least 320 N / mm2. The elongation percentage shall be as per clause 14.1.1 of IS 1239 (Part I). The bend test shall also be carried out as per clause 14.2 of IS 1239. The G.I. pipes and fittings shall be tested at site, after they are laid and jointed as per clause 15.4.11 of standard specifications.

21.2. Unplasticized Poly Vinyl Chloride (uPVC) Pipes

The latest versions of Indian standards and codes of practice shall be adhered to for the design, manufacturing, inspection, factory testing, packing, handling, and transportation, laying, and jointing of the uPVC pipes. The rubber rings shall be vulcanized from Ethylene Propylene (EPDM) confirming to IS 5382. The uPVC pipes shall be of minimum 4 kg / sqcm

Page 316: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

101 of 267

and as per IS 4985 and the pipes for plumbing works in office building shall be SWR (Type B) as per IS 13592, with electrometric sealing rubber ring joints. The method of sampling of rubber rings should be in accordance with IS 5382.

The material from which the pipes are made shall consist substantially of unplasticized polyvinyl chloride conforming to IS 10151, to which only those additives shall be added that are absolutely needed to facilitate the manufacture of the polymer and the production of sound, durable pipes of good surface finish, mechanical strength and opacity. The total quantity of additives like plasticizers, stabilizers, lubricants and fillers shall not exceed more than 7.0%. The bulk density of UPVC pipes shall be 1.39 to 1.44 g/cm3. The PVC resin of suspension grade K-66/K-67 shall be used for extrusion of UPVC pipe. The uPVC fittings shall be fabricated from Class 4 uPVC as per IS 4985.

Tests on Material:

Following in house tests shall be carried out on the raw material:

• Grade (K-value)

• Particle size distribution

• Bulk density of resin

• Bulk density of compound

Acceptance Test on Pipes:

The acceptance test shall be conducted in accordance with IS 4985 and in presence of the Engineer’s representative–

• Visual and dimensional check

• Reversion test

• Vicat softening test

• Ash Content

• Bulk density

• Resistance to external blows

• Internal hydrostatic pressure test for pipes and joints

• Opacity

Marking on Pipe:

Each pipe shall be clearly marked as indicated below:

• Manufacturer’s name and trade mark

Page 317: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

102 of 267

• Outside diameter (OD) in mm

• Class of pipe and pressure rating

• Month and year of manufacturing

• Length of pipe

• Marking of insert depth of spigot

Marking on rubber ring:

Each sealing ring shall be permanently marked with

• The manufacturer’s name or trade mark.

• The month and year of manufacture

• Diameter of pipe for which the ring is suitable.

• Type of rubber material

Tests on rubber ring:

Following tests shall be conducted on rubber rings conformity:

• Hardness

• Tensile strength

• Elongation at break

• Compression set

• Accelerated ageing

• Water Absorption

• Stress relaxation

21.3. Ductile Iron Pipes

The DI pipes shall be centrifugally cast (spun) for Water and Sewage and confirming to IS 8329-2000. The pipes used shall be both gasket joints and flanged joints. The minimum class of pipe to be used shall be class K-9 conforming to IS 8329. In general, pipes inside the buildings and below the structures shall be jointed as double-flanged pipes and those outside the building can be either EPDM gasket in accordance with IS 5382 and manufactured by the pipe manufacturer only.

The pipes shall be supplied in standard lengths of 5.5m and 6.00m length with suitably rounded chamfered ends. Any change in the stipulated lengths will be approved by the Engineer’s representative. The flanged joints shall confirm to the Clause 6.2 of IS 8329. The pipe supply will also include one rubber gasket for each flange.

Page 318: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

103 of 267

Inspection and Testing:

The pipes shall be subjected to following tests for acceptance:

• Visual and dimensional check as per clause 13 and 15 of IS 8329.

• Mechanical tests as per clause 10 of IS 8329.

• Hydrostatic test as per clause 11 of IS 8329.

• The test reports for the rubber gaskets shall be as per acceptance tests of the

IS 5382 and in accordance to clause 3.8

The sampling shall be as per the provisions of the IS 8329. Markings

All pipes shall be marked as per clause 18 of IS 8329 and shown as below:

• Manufacturer name / stamp

• Nominal diameter

• Class reference

• A white ring line showing length of insertion at spigot end.

Packing and Transport

The pipes should be preferably transported by road from the factory and stored as per the manufacturer’s specifications to protect them from damage.

Specials for DI Pipes

The DI specials shall be manufactured and tested in accordance with IS 9523 or BS 4772. The mechanical test and hydrostatic test shall confirm to clause 9 and clause 10 respectively of IS 9523. The tolerances on dimensions shall be as per IS 9523. The manufacturer of the pipes shall supply the fittings.

Supply

All the DI fittings shall be supplied with rubber rings for each socket. The rubber ring shall conform to IS 12820 and IS 5382. Flanged fittings shall be supplied with one rubber gasket per flange and the required number of nuts and bolts.

21 Valves

26.1. Sluice Valves

a. Sluice valves shall be of rising spindle type. The valve shall be furnished with a bushing

arrangement for replacement of packing without leakage. Shoe and channel arrangement

Page 319: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

104 of 267

shall be limited to valves of 450 mm and above. The gap between the shoe and channel shall be limited to 1.5 mm.

b. Valves of 450mm and above shall be provided with thrust bearing arrangement for ease

of operation.

c. Valves of diameter 450 mm and above shall be provided with enclosed gear arrangement

for ease of operation. The operation gear of all valves shall be such that they can be opened and closed by one man against an unbalanced head 15% in excess of the maximum specified rating. Valve and any gearing shall be such as to permit manual operation in a reasonable time and not exceed a required rim pull of 400 N.

d. All valves, spindles and hand wheels shall be positioned to give good access for

operational personnel.

e. All the hand wheels shall be arranged to turn in a clockwise direction to close the valve.

The direction of rotation for opening and closing of the valve shall be indicated on the hand wheels.

f. The material of construction of valve shall be as follows:

SR.NO COMPONENT MATERIAL

(i) Body and Doors Cast Iron : IS:210 Gr FG 200

(ii) Spindle Stainless Steel: BS:970 Gr 431

(iii) Seat Rings Stainless Steel: BS:970 Gr 304

(iv) Back seat bush Bronze : IS:318 Gr LTB2

(v) Shoe and channel linings Stainless Steel : BS:970 Gr 304

26.2. Knife Gate Valves

• The valve shall meet requirements of MSS SP 81.

• Outer body shall be provided with inner liner in corrosion resistant Stainless Steel which

shall extend into the gland. The body shall be devoid of any wedge / dead pockets to avoid settling of suspended particles and solids in the service fluid.

Page 320: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

105 of 267

• The gate/plate shall be precision buffed and the edge contoured to a knife edge. The gate shall move along / be guided by the seat ring to ensure that it scrapes any deposit / scale, enabling smooth uninterrupted movement.

• Seat shall be so designed that there is no recess / relieved groove to harbour deposition

that could build-up and swamp the valve. The design to also incorporate bosses that guide the gate and avoid deflection, ensuring positive shut-off.

• The stem shall have double start threads cut in order to ensure smooth and speedy

operation.

• Gland packing shall offer minimal frictional resistance and precludes external lubrication.

As positive sealing element, the packing shall also include a resilient rubber ring.

• The knife edge and seat face in flow path shall be hard faced to a hardness of 400 to 450

BHN to counter erosion. In such cases, provision shall also be made to ensure the fluid contact with the seat ring is minimal.

• The material of construction of valve shall be as follows:

26.3. Butterfly Valve

a. This valve shall be installed at the pipe-line to seal the water or air and to adjust the flow.

b. Valves shall be suitable for throttling operations and for infrequent operation after

periods of inactivity.

c. The body of the valve shall be made from cast iron or ductile iron.

S.NO COMPNENT MATERIAL

(i) Body Cast Iron : IS:210 Gr FG 260

(ii) Inner lining Stainless Steel: BS:970 Gr 304

(iii) Knife gate / plate Stainless Steel: BS:970 Gr 304

(iv) Stem Stainless Steel : BS:970 Gr 304

(v) Seat ring / Boss Stainless Steel : BS:970 Gr 304

(vi) Gland housing Ductile Iron : BS 2789 Gr 500

(vii) Gland packing Teflon impregnated with the asbestos + rubber

Page 321: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

106 of 267

d. Valves shall have fabricated steel, cast iron or ductile iron discs with a resilient rubber

sealing ring.

e. Valve stem, shall be if stainless steel designed for both torsion and shearing stresses when

the valve is operated with permanently self-lubricated shaft stub bearing, sized to withstand bearing loads.

f. Butterfly valves shall be provided with hand-wheels and rack and pinion gearing operation. The valves shall be open by turning the hand-wheel in an anticlockwise direction. The direction of valve opening and closing shall be marked on the hand-wheel casting.

g. The valves shall be designed to hold the disc in any intermediate position between fully opened and fully closed without creeping or fluttering by manual or electric operation.

h. The material of construction of valve shall be as follows:

S.No COMPONENT MATERIAL

1 Body Cast Iron or Carbon steel or equivalent

2 Disc Carbon steel or Cast iron or equivalent

3 Stem Stainless Steel or equivalent

4 Seat Rubber or equivalent

26.4. Non Return Valve

a. The valves shall be suitable for mounting on horizontal pipe line.

b. The internal parts shall be easily accessible for inspection through inspection hole.

c. Hydraulic passages and doors shall be designed to avoid cavitations.

d. Valves shall be of swing type or ball type. Ball valves must house a freely moving ball in

such a way that return flow is effectively prevented.

e. Valves shall be quick closing type with non-slam characteristics. In case of swing type,

the nonslam characteristics shall be achieved by providing suitable combination of door and hydraulic passages without any external lever/damping arrangement.

Page 322: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

107 of 267

f. Valves 450 mm and above shall be provided with supporting foot.

g. Swing door valves of size 600mm and above shall be of multi-door type.

h. Direction of the flow shall be clearly embossed on the valve body.

i. Maximum pressure drop across the valve shall be 0.4 mwc.

j. Maximum allowable leakage rate shall be 7cc/hr/mm diameter.

k. The material of construction of valve shall be as follows

S.No COMPONENT MATERIAL

1 Body and Door Cast Iron : IS 210 Gr. FG 200

2 Body and Door Ring Stainless Steel : ASTM A743 CF8,

BS970 Gr. 304 S11

3 Hinge Pin Stainless Steel : BS970 431 S29

4 Bearings Teflon

26.5. Telescopic Valve

a. The telescopic valve shall be a proprietary item of proven design manufactured in cast

iron and adjustable to cater for 1000mm variation in level. b. The bell-mouth height shall be controlled by a hand-wheel operated from top of the

chamber. c. The bell-mouth, pipe work, spindle and headstock shall be robustly constructed with

adequate brackets of cast iron. d. The bell-mouth shall be connected by swept tees to a cast iron sludge outlet pipe of

300mm diameter.

S.No COMPONENT MATERIAL

Page 323: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

108 of 267

1 Bell Mouth Cast Iron : IS:210 Gr. FG 200

2 Piping Cast Iron : IS:210 Gr. FG 200

3 Spindle Stainless Steel Gr. 304

4 Hand wheel Cast Iron : IS:210 Gr. FG 200

26.6. Pressure / Vacuum relief valves

a. Pressure relief valves shall be capable of relieving pressure in the system to prevent the

system being pressurized in excess of a preset maximum allowable pressure. The valves shall be drops tight under no flow conditions.

b. Vacuum relief valves shall be capable of preventing the vacuum pressure to be developed

in the system by allowing air entry. The valves shall be drops tight under no flow conditions.

c. The valve operation shall be achieved by the interaction of the inlet pressure and an

intermediate pressure produced by a pilot valve or relay system acting on the upper side of the main valve.

d. The pilot valve or relay system shall be actuated by a diaphragm connected to the inlet

pressure on its underside and a constant pressure on its upper side derived either from weights or from a spring.

e. Body ends shall be flanged and drilled to BS 4504.

22 Reduction Gear Units

a. Reduction gear units, wherever provided shall be double reduction units without V-belt

and pulley. Gears shall be cut from solid cast or forged steel blanks or shall be of stress relieved welded steel construction. Pinions shall be of forged carbon or heat treated alloy steel. Strength, quality of steel, heat treatment, face, pitch of teeth and design shall conform to BS: 436 and BS: 721. Split gears shall not be used. Gears and pinions shall be pressed on and keyed to shafts.

b. All pinions and gears are to be of the totally enclosed type up to the last stage of reduction in all motions and shall be carried in fabricated steel gear cases which must be dust-proof and firmly sealed to prevent oil leakages and shall be oil bath lubricated. The gear boxes shall have covers split horizontally and arranged so that top half can be removed for inspection. They shall be fitted with bolted type machined inspection covers and with cast steel cartridge housings for carrying roller bearings.

c. Dip sticks or indicator shall be provided for indicating the oil level. Guards shall be strong enough to retain the whole gear or any part that might otherwise fall. No

Page 324: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

109 of 267

overhanging gears shall be used. Drain plugs shall be provided on all gear cases. Lifting lugs shall be provided for handling purposing.

23 Propeller Exhaust Fan

a. The fan should comply with IS 2312.

b. The blades shall be of mild steel and properly balanced so as to avoid noise and vibration.

The blade and blade carriers shall be securely fixed so that they do not loosen in operation. The means provided for securing the fan mounting or fan casing to the wall partition or window shall be such as to provide a secure fixing without damage to the fan or wall.

c. Suitably designed guards shall be fitted to the inlet and the outlet side to prevent

accidental contact. No flammable material shall be used in the construction of fan. Moulded parts, if used, shall be of such materials as to withstand the maximum temperature attained in the adjacent component parts.

d. The fan shall have protective insulation or be capable of being earthed. A fan with

protective insulation may be of all insulated construction or have either double insulation or reinforced insulation. Each fan should be provided with a 10 sq.mm mesh bird screen. The sheet used for the cowl should be 14 G.

24 Air conditioning Equipment

• Wall mounted split type air conditioners of appropriate capacity shall be provided for the

control room. Outdoor condensing unit shall be located on the roof of the building or grouted on the external side of the wall with suitable brackets.

25 Domestic Water Pump sets

• The Pump shall be of Centrifugal type, self priming and mono-block type, suitable for

pumping the clear water. All the necessary piping with union, bends and tees shall be provided. Suction and discharge isolation valves and non-return valves on the discharge side shall be forged steel. Piping shall be as per IS: 1239 heavy class.

26 Pumps

26.1. Submersible Pumps General

Page 325: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

110 of 267

• Submersible pumps shall be of the single entry design supplied complete with boltless self-aligning duck-foot assemblies giving automatic connection to the discharge pipe work.

• The total head capacity curve shall be continuously rising towards the shut off with the

highest at shut off.

• Pumps shall be suitable for single as well as parallel efficient operation at any point in

between the maximum and minimum system resistances.

• The pumps shall be designed to handle solid sizes of up to 80 mm.

• Pumps shall run smooth without undue noise and vibration.

• The pump set shall be suitable for starting with discharge valve open and/or closed.

• The pump set shall be capable of withstanding the accidental rotation in reverse direction.

Submersible Pumps Features of Construction

Pump shall be centrifugal, vertical spindle, non-clog, wear resisting, single stage type.

(Pump casing shall be of robust construction. Liquid passages shall be finished smooth and designed as to allow free passage of solids. The volute tongue shall be filed to a smooth rounded edge.

Double Mechanical seals shall be provided to protect the motor from ingress of liquid along the shaft. The preliminary and secondary seals shall be oil-lubricated with tungsten carbide or silicon carbide faces and they shall be equipped with an electrical monitoring system for seal failure detection. Sensors are to be provided to detect if leakage of liquid into the oil housing is above 30 % concentration

Double Mechanical seals shall be provided to protect the motor from ingress of sewage along the shaft. The preliminary and secondary seals shall be oil-lubricated with tungsten carbide or silicon carbide faces and they shall be equipped with an electrical monitoring system for seal failure detection.

Impeller shall be non-clog open / semi open type for raw sewage and sludge application and enclosed type for clear water / treated sewage / filet rate pumping application with smooth blunt edges and large water ways so as to allow free passage of the large size solids. It shall be free from sharp corners and projections likely to catch and hold rags and stringy materials. The number of impeller vanes for pumps up to 1000 m³/hr shall be limited to two and shall be limited to three for the pumps higher than 1000 m³/hr.

The critical speed of the rotor shall be at least 30% above the operating speed.

Page 326: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

111 of 267

Pump sets shall have double bearings. The bearing life shall be minimum 40,000 hrs of operation.

Each pump shall be complete with a cast iron delivery connection arrangement for fixing to the concrete floor of the suction well. All necessary stainless steel fixtures required for guiding the pumps during lifting / lowering shall be provided. The installation shall facilitate automatic installation and removal of pump without a person entering the wet well. Each pump shall be provided with a SS 304 lifting chain with suitable provision for engaging the hook of the crane at 1 m interval.

Each pump shall be provided with an automatic coupling device for attaching the crane hook to the pump at low level, even whilst the pump is submerged, without the need for personnel to enter the well. This automatic coupling device shall easily and automatically couple and uncouple the hoist hook and be complete with necessary accessories. All links and cables shall be multi-stranded stainless steel.

The submersible pumps shall be suitable for operation with or without submergence.

The pump shall start and stop automatically based on level in the wet well.

The synchronous speed shall not exceed 1500 rpm at 50 Hz supply.

The materials of construction for submersible pumps shall be as follows :

S.No COMPONENT MATERIAL

1 Impeller Stainless Steel : ASTM A 743 CF8M

2 Casing Cast Iron to IS:210 Gr FG 200 with 1.5 to 2% Nickel

3 Shaft Stainless Steel : BS:970 AISI Gr 316

4 Bush Bronze IS 318 Gr. LT B2

5 Guide rail pipe Stainless Steel : BS:970 AISI Gr 304

6 Fasteners and Foundation Bolts Stainless Steel : BS:970 AISI Gr 316

Material test certificates shall be furnished by the Bidder and shall have the approval of Engineer.

The submerged cable shall be a multi-core flexible cord, vulcanized rubber insulated with tough rubber sheath and outer PCP sheath to BS 6500.

Where both thermal protective and moisture-sensitive devices are incorporated within the pump, both devices shall be brought out via separate conductors within the motor cable, although one such conductor may be common.

Page 327: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

112 of 267

26.2. Centrifugal Pumps

a. Centrifugal pumps shall have head/quantity characteristics which fall continuously from

the maximum pressure at closed valve conditions and which are steep in order that variation in head shall have a minimal effect on the quantity discharged.

b. The design speed of any pump with a duty flow greater than 20 l/s shall not exceed 1 500

rpm. Pump motor ratings shall exceed the maximum pump power consumption over the operational range of the pump by at least 10%.

c. Waterways through the pump shall be smooth in finish and free from recesses and

obstructions. Impeller passageways shall be as large as possible. The leading edges of the impeller vanes shall be rounded and smooth.

d. Water velocities in the pump suction side shall not exceed 1.5m/s and on delivery

branches of a pump the velocity shall not exceed 2.0 m/s when the pump is operating within its specified duty range and within this working range there shall be no discernible noise due to hydraulic turbulence or cavitations within either the pump or its associated pipe work and valves.

e. The NPSH requirements of the pumps, based on the 3% output drop criterion shall be at

least 2 m less than the NPSH available at every working condition.

f. The velocity of vibration shall be within 4.5mm/sec. Combined noise level of pump

motor system shall be limited to 85dBA at a distance of 1.85m from the equipment, at manufacturer’s works.

g. The pump shaft shall be of stainless steel to BS: 970 Grade 410S21 compatible with the

impeller which shall be of stainless steel ASTM A743 CF8M and the impellers and shaft sleeves shall be secured to the shaft by means of a key or keys. The impeller retaining nut shall be fitted with a locking device. The pump casing shall be of Cast iron to IS210 Gr.FG260, wearing rings shall be of Bronze to IS: 318 Gr.LTB2 and shaft sleeve shall be of stainless steel to ASTM A 743 CA 15.

h. All parts exposed to wear shall be adequately protected by means of renewable sleeves,

bushes, wear rings etc which shall be arranged for easy inspection, adjustment, or replacement without removal of the pump casings, pipe work etc, or the need to disturb the drive shaft alignment.

i. The pump thrust shall be taken by a combined thrust and radial type bearing assembly

capable of taking the weight of the moving parts and the hydraulic loads under all conditions of operation with a minimum life of 100 000 hours.

Page 328: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

113 of 267

j. Bearing cooling arrangements if used shall be designed on the closed-circuit principle; open discharge of cooling water into the pumping station drainage system is not permissible.

k. The pump casing and other parts of the pump subject to pressure shall be hydraulically

tested by the manufacturer to at least one and a half times the maximum working pressure.

l. Integral inlet and discharge flanges shall be provided and integral lifting lugs shall be

incorporated.

m. Facilities shall be provided for the removal of air during priming and for draining.

n. Glands may be fitted with mechanical seals or conventional soft packing. The gland

arrangement shall be designed for easy adjustment and removal of the seal.

o. When soft packed glands are used suitable means shall be provided for collecting and

preventing splashing of the gland leakage water.

p. Drainage and gland leakage water shall be piped into the building drainage system.

q. The shafts of pumps fitted with conventional packed glands shall be fitted with

removable gland sleeves.

r. The rotating element of the pump and the motor shall be readily removable from the

pump casing without the need to disconnect the adjoining pipe work.

s. Rotating assemblies of pumps of 100 mm diameter inlet and over shall be statically and

dynamically balanced and shall be designed so that the first critical speed is at least 50% greater than the maximum operating speed.

t. Lubrication arrangements shall be so designed that there is no contamination of the

pumped fluid.

u. On pumps of 75 mm inlet and over, tapping shall be provided at both the suction and

discharge flanges of suitable size for pressure gauges.

26.3. End Suction Pumps

a. End suction pumps shall be horizontally mounted complete with drive motor on a

common base plate. The pump/drive coupling shall be of the spacer type to facilitate

Page 329: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

114 of 267

removal of the pump rotating element and bearing housing without dismantling the pump casing, adjoining pipe work or drive motor. These types of pumps shall be used for Filter backwash, Chlorination motive water and service water pumping applications etc.

b. The dimensions of the pump shall be metric conforming to BS 5257 or its equivalent

standard. Flanges shall conform to BS EN 1092-2/BS 4504.

c. The bedplate shall be of substantial fabricated steel construction with floor fixing bolt

holes ready drilled. All holding down bolts etc. shall be supplied with the units.

d. The velocity at the entrance to the pump impeller shall not exceed 3.5 m/s.

e. Impellers shall be provided with means to prevent abrasive matter reaching the glands

and with fully shrouded impellers, to prevent the trapping of matter between the impeller vanes and the casing.

f. The speed of any pump shall not exceed 1500 rpm.

g. Glands may be fitted with suitable mechanical seals or conventional soft packing. The

gland arrangement shall be designed for ease of adjustment or removal of the seal or packing material. Shafts shall be sleeved around the area of the gland when soft pack glands are used.

h. Flushing facilities shall be provided for mechanical seals or packed glands where pump

fluid may be contaminated with abrasive material. Where soft packed glands are used, means shall be provided for collection of the gland leakage water, which shall be piped into the drainage system through adequately sized ports.

i. Lubrication arrangements shall be so designed that there is no contamination of the

pumped fluid.

j. The pumps and associated pipe work shall be, wherever possible, arranged so that air can

be completely expelled during priming. Where this is not possible, facilities shall be provided for the removal of the trapped air. Adequate facilities shall be provided for drainage of the pumps for inspection purposes.

k. Tapping shall be provided at both the suction and discharge flanges for pressure gauge

equipment.

26.4. Pump Performance Guarantees

Page 330: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

115 of 267

a. The pump performance guarantee shall relate to the flow rate, the total head and the efficiency of the pump when tested at the manufacturer's work and shall obtain approval of Engineer.

b. The pump shall operate at its design point within acceptance tolerances for flow rate and

total head laid down in BS EN ISO 9906:2000.

c. Each pump shall be tested at the manufacturer's factory in accordance with BS EN ISO

9906:2000 or other relevant standards in conjunction with one of the contract motors.

d. This test shall be carried out on at least one pump set using the flexible coupling and

contract drive shaft arrangement to establish that the drive arrangement with supports and couplings operates satisfactorily under all operating conditions.

e. Where similar drive shaft arrangements have been installed by the Bidder and have been

proven satisfactory in service this requirement may be withdrawn subject to the approval of the Engineer.

f. A test shall be carried out of the performance from closed valve to the maximum quantity

that can be delivered under abnormally low discharge heads.

g. Sufficient readings shall be taken at each test to produce accurate curves of the heads,

flow, pump speed and power required at pump coupling throughout the operating range of the pump.

h. Vibration and noise dB(A) levels shall be measured and shown to be acceptable and shall

have Engineer’s approval. The Bidder shall have Engineer approval and provide acceptable test certificates, showing the NPSH requirement for the pump is at least 2 m less than the NPSH available under all working conditions.

i. In the absence of the approved test certificates the supplier shall carry out a test on one

pump of each type to verify the NPSH requirement based upon the 3% output drop criterion and shall take approval of Engineer..

j. Test Certificates in duplicate shall be submitted to the Engineer immediately following

each of the tests mentioned above. Performance curves shall also be incorporated in the Operation and Maintenance Manual.

a. Single Pump Operation

a. Head/quantity curve

b. Motor kW input/quantity curve

c. Overall efficiency/quantity curve

d. NPSH required/quantity curve

Page 331: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

116 of 267

e. Vibration and Noise dB (A) levels

b. Parallel Pump Operation

f. Head/quantity curves

g. Motor kW input/quantity curve

h. Overall efficiency/quantity curve

i. NPSH required/quantity curve

j. Vibration and noise dB(A) levels

26.5. Progressive Cavity Pumps

a. These pumps shall be used for handling thickened sludge transfer / feed applications.

b. Pumps shall be of the type in which a pumping action is generated by a helical rotating

eccentrically within a resilient stator in the form of a double internal helix. The eccentric motion of the rotor shall maintain a constant seal across the stator as it travels through the pump to give a uniform positive displacement.

c. Pumps shall be arranged generally with a single shaft seal at the suction end. Mechanical

seals shall be used. If a flexible shaft is used to accommodate the eccentric motion, a corrosion resistant shroud shall be fitted to prevent fibre build-up on the shaft. Enlarged inspection access holes shall be fitted to the suction chambers of all pumps for periodic removal of accumulated debris.

d. The shaft bearing shall be positively isolated from the fluid being pumped.

e. The rotor material shall be selected for corrosion and abrasion resistance for the fluid

being pumped, and for prolonged service life. Hard chrome or other approved coatings shall be not less than 250 micron thickness and shall be diffused in to the base material. The rotor shall generally be single-stage and shall incorporate not less than 3600 of twist, but for high-head applications, it may be necessary to use more than a single-stage. The stator shall be of a resilient material selected for chemical and abrasion resistance for the fluid being pumped.

f. Pump speed shall suit the application, where variable delivery output is needed; the pump

shall be provided with a variable-speed drive. The size and speed range of the pump shall ensure that the highest expected duty point shall lie within the available speed range.

g. Pumps shall normally be driven by a fixed-speed electric motor through reduction

gearing and the combined drive shall be continuously rated. Pump and motor shall preferably be mounted in-line on a common base plate. Alternatively, the drive motor may be top-mounted above the pump to minimize floor area, and shall be connected by

Page 332: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

117 of 267

external V-belts and pulleys. V-belt drives shall have full guards of the type that allow the belts observed without removal of the guard. Facilities shall be provided for ready adjustment of belt tension.

h. Coupling guards shall be provided, which shall be rigid, securely fixed, and designed so

that removal is not necessary during normal operation, routine maintenance and routine inspections. All motor enclosures shall be provided with ingress protection to IP55. Motor anti-condensation heaters shall be provided and shall be suitable for use on a 220V single-phase, 50Hz supply.

i. (All bearing shall have a B10 design life of not less than 40,000 running hours and shall

be designed for loading 20% in excess of calculated maximum loading. Pumps shall be fitted with individual dry-running protection to initiate pump trip. Dry-running protection by ‘under-current’ monitoring or ‘pipeline-intrusive’ device shall not be used.

MATERIAL OF CONSTRUCTION

Pump Housing CI IS 210 GR. FG220 or FG260

Rotar SS AISI 316(Hard chrome Plated)

Shaft SS AISI 410(Hard chrome Plated)

Stator Nitrite black

Type of drive V belt & Pulleys

Base plate MS fabricated

Seal type Gland packing (Asbestos Free)

26.6. Chemical Dosing Pumps

a. Chemical dosing pumps shall be piston diaphragm or mechanical diaphragm type as

specified. Pumps may be simplex or duplex arrangements to suit the capacity or process requirements. The pump design shall incorporate positive stroke return. The maximum stroking speed shall not exceed 100 strokes per minute (spm). Pump, motor and driving arrangement shall be mounted on a robust combined base plate.

b. Pump liquid ends shall be selected for compatibility with the pumped liquid. Suction and

discharge valves shall be the single ball type allowing a free flow self cleaning action. Ball and seat materials shall be resistant to abrasion.

c. Pumps shall incorporate a variable stroke mechanism to allow the output to be varied

while the pump is running. Stroke adjustment shall be manual or where specified by electrical or pneumatically controlled stroke positioner. A stroke length indicator and digital stroke counter shall be fitted. Pumps shall be driven by a flange mounted IP 55

Page 333: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

118 of 267

motor, via an oil bath reduction gearbox and variable stroke mechanism giving step less adjustment between zero and maximum stroke length. Where flow proportional dosing is required the variation of output shall be achieved by varying the speed of the pump motor and not the pump stroke length.

d. The normal operating range of dosing pump shall be not less than 6:1.

e. Mechanical Diaphragm: Diaphragm rigidly coupled to the drive train. Single suction

Pumps and discharge valves. Glandless. Accuracy: 3% of stoke.

f. Piston Diaphragm Pumps: Diaphragm hydraulically operated by liquid displaced by a

plunger and protected from excess pressure via a relief valve. Accuracy: 2% of stroke.

g. Materials shall be selected to suit the chemicals being pumped. Liquid ends shall be

polypropylene, AISI 316 stainless steel, glass, or Hastelloy C. Diaphragm materials shall be butyl rubber, PTFE, or Hypalon and glands shall be PTFE or Neoprene.

h. Each pump shall be provided with inlet and outlet isolating valves and where necessary,

with pressure relief and non-return valves. Dosing pumps shall be provided with back pressure loading valves and pulsation dampeners in the delivery lines depending on the downstream conditions.

i. A relief valve shall be incorporated in the delivery lines under conditions where the

pump

j. discharge pipe can be shut off or where pressure may rise to an excessive point. The relief

valve shall be sized to handle the system pressure and to discharge maximum pump output freely, and shall be located in the discharge line between the pump and the first downstream isolating valve or in the case of dosing pumps the back pressure loading valve. Relief valves when used on pumps handling non-hazardous chemicals shall discharge the vented liquid to waste. When used on hazardous chemicals the valve outlet shall be piped back to the suction supply tank or bunded area. The open end of the return pipe shall be located where it is visible, so that any relief valve leakage/operation can be detected.

k. Pump transferring/dosing chemicals to systems under pressure shall incorporate a

pressure gauge on the pump delivery. Air cocks shall be provided for release of air where necessary.

l. Unless otherwise specified flushing connections shall be provided at each pump inlet and

flushing shall be manual. When flushing, water shall be discharged either locally through a drain valve or to the point of application of the chemical. Facilities shall also be provided for flushing chemical pump suction and delivery manifolds and delivery lines to point of application.

Page 334: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

119 of 267

m. Dosing pumps and motors shall preferably incorporate an integral reduction gearbox

drive which shall be totally enclosed and oil bath lubricated. The gear box shall incorporate the cams for the diaphragm drive and shall be provided with filling and drain connections and visible oil level indication.

26.7. Induction Motor (Submersible Motor)

Design Requirements

a. The submersible motors shall generally conform to IS: 325 and the submersible cable

shall conform to IS: 9968 or relevant equivalent internationally approved standards. Additionally the specific requirements mentioned in the following clauses shall also be met.

b. The motor shall be three phase dry induction type with non-overloading

characteristics.

Performance and Characteristics

a. Motors shall be capable of giving rated output without reduction in the expected life

span when operated continuously under the following supply conditions:

b. Variation in supply voltage + 10% c. Variation in supply frequency + 5% d. Combined voltage and frequency variation (10%

e. Motors shall be suitable for full voltage direct-on-line starting or star-delta starting.

f. Motors shall be capable of starting and accelerating the load with the applicable

method of starting, without exceeding acceptable winding temperatures, when the supply voltage is in the range 85% of the rated motor voltage.

g. Motors shall be designed to withstand 120% of rated speed for two minutes without

any h. mechanical damage, in either direction of rotation.

i. The motor vibrations shall be within the limits specified in the relevant standard.

j. Except as mentioned herein, the guaranteed performances of the motor shall be met

with k. tolerances specified in applicable standard, IS: 9283-1979.

Page 335: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

120 of 267

l. The enclosure for motor shall be IP-68.

m. Minimum three number thermistors in series are to be provided to sense the stator

winding temperature.

n. Bimetallic thermal switch to trip the motor against increase in temperature shall be

provided.

o. The power rating of the motor shall be larger of the following:

p. 115% of the power input to the pump at duty point.

q. 105% of the power input to the pump at 75% head.

r. Motors shall be suitable for full voltage direct-on-line starting or star delta starting.

Minimum permissible starting voltage shall be 85% of the rated voltage.

Submersible Cable

a. The power cable shall be PVC insulated and PVC sheathed, flexible, 3.5 core flat

type. The size of the conductor shall be adequate for continuous use under water and air. The half core shall be used for earthing.

b. The control cable shall be PVC insulated PVC sheathed, flexible, flat type and shall

be adequate for continuous use under water and air. The control cable for stator winding temperature sensor (Thermistors) 3 core x 2.5 sq. mm copper conductor and for bimetallic thermal switch 2 core x 2.5 sq. mm copper conductor shall be provided.

c. In case a joint is required to be made between the lead cable supplied with the motor

and the user's cable connectors, a detailed procedure of cable jointing to make a watertight joint shall be provided by the manufacturer.

d. The size of the conductor and length of cable should be suitably selected so that the

voltage drop at motor terminals does not exceed 3 percent of the rated voltage. Earthing

a. Earthing of the motor shall be done in accordance with the relevant provisions of

IS:3043:1966. b. (For the purpose of earthing these motors, earthing connection may be made to

discharge pipe. Insulation

Page 336: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

121 of 267

a. Any joints in the motor insulation such as at coil connections or between slot and end

winding sections shall have strength equivalent to that of the slot sections of the coil.

b. The insulation shall be given tropical and fungicidal treatment for successful

operation of c. the motor in hot, humid and tropical climate. The tropicalising treatment shall be as

per the applicable standard.

d. The stator winding shall be made from high conductivity annealed copper conductor,

PVC insulated winding wires conforming to IS: 8783:1978 for wet type motors. The stator winding shall be of high conductivity annealed copper enameled insulated wires conforming to IS: 4800 (Part-VII):1970 for dry type motors.

Temperature Rise

a. The temperature-rise test of the motor shall be taken with the motor coupled to the

suitable pump to give the full load output of the motor. When the various temperatures are stabilized, the set is stopped and the temperature-rise of the stator winding by the resistance method shall not exceed 35°C. During the test, the temperature of the cooling water may not exceed 35°C. As the cable resistance will also be substantial, it is necessary that while calculating the temperature rise by resistance method, due care is taken to account for the correct hot and cold resistance of windings.

Constructional Features

a. The motor shall be suitable for continuous duty as well as intermittent duty with or

without full submergence of the motor. b. Aluminum die cast rotor to be provided for better starting torque characteristics. c. The electric motor shall be suitable for 10 starts & stops per hour. d. Single phasing and overload protection system shall be provided e. The motor degree of protection shall be IP68. f. Each motor shall be provided with minimum 25 m length of power & control cables

and 15 m length of lifting chain. g. box (i.e.) for terminating power & control cables for each motor.

Terminal Box

a. Terminal box shall be of weather proof construction to eliminate entry of water and

dust. b. The terminals shall be of the stud type with necessary plain washers, spring washers

and check nuts. They shall be substantially designed for the current carrying capacity and shall ensure ample phase to phase and phase to ground clearance.

26.8. Induction Motor

General

Page 337: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

122 of 267

All motors shall comply with IEC 60034, 60072 and IS-325, 4029, 4722 including standards referred to therein.

Performance and Characteristics

The performance and characteristics of the induction motor are as defined in the table below

DESCRIPTION UNIT PARTICULARS

Type Squirrel cage Induction motor

Rating Kw (*)

Rated Voltage kV 0.415

Synchronous speed Rpm (*)

Quantity Nos. (*)

Type of mounting

Duty type Horizontal/ Vertical (depending onapplication and process requirement

Method of starting Continuous (S1)

Type of system earthing

Soft starter/ Star-Delta starter/ Direct on line (depending on application and process requirement) (#)

Class of insulation F

Design ambient temperature

0C 50

Location Indoor/ Outdoor (depending on application and process requirement

Degree of Protection IP55

Cooling designation IC411

Terminal box LHS-looking from NDE end

External cable details 1.1 kV, 3C x (*) sq. mm. Aluminum, XLPE, armoured

Space heater for motor Required if motor rating is 30kW and above

a. (*) – To be furnished by Bidder. Bidder should ensure that all the equipment

ratings are based on their system requirement and subject to Engineer approval.

Page 338: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

123 of 267

b. (#) – Motors rating up to and including 5.5 KW shall be started by DOL starter, Motor ratings above 5.5KW and up to or equal to 250 KW shall be started by Star-Delta Starter and above 250 KW shall be started by soft starter.

c. Motors shall be energy efficient (Category –2 or better) squirrel cage induction

motors (TEFC type) with degree of protection for enclosure of IP 55. They shall be capable of starting and accelerating the load for the method of starting, as per SLD without exceeding acceptable winding temperatures, when the supply voltage is 80% of the rated voltage. Main conductor and insulation shall be non-hygroscopic and in accordance with Class F of IEC 60085.

d. Motors shall be capable of giving rated output without reduction in the expected

life span when operated continuously under the following supply conditions:

• Variation in supply voltage ±10% • Variation in supply frequency ±5% • Combined voltage and frequency variation ±10%

e. Motors shall be capable of starting and accelerating the load with the applicable method of starting, without exceeding permissible winding temperatures, when the supply voltage is 80% of the rated voltage. Motors shall be capable of satisfactory operation at full load at a supply voltage of 80% of the rated voltage for 5 minutes, commencing from hot condition.

f. The Power rating of the motor shall be the larger of the following:

• 115% of the power input to the pump at duty point. • 105% of the power input to the pump between 110% to 75% head. • Motors shall withstand the voltage and torque stresses developed due to the

vector difference between the motor residual voltage and the incoming supply voltage equal to 150% of the rated voltage, during fast changeover of buses. The duration of this condition is envisaged for a period of one second.

g. The locked rotor withstand time under hot conditions at 110% rated voltage shall

be more than the starting time at minimum permissible voltage by at least two seconds or 15% of the accelerating time, whichever is greater. The locked rotor current of motors shall not exceed 600% of full load current of motor which is inclusive of 20% tolerance.

h. The motors shall be provided with class F insulation with temperature limited to

that of class B insulation.

i. Motors when started with the drive imposing its full starting torque under the

specified supply voltage variations shall be capable of withstanding at least two successive starts from cold conditions and one start from hot condition without

Page 339: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

124 of 267

injurious heating of windings. The motors shall also be suitable for three equally spread starts per hour under the above referred supply conditions.

Constructional Features

a. Motors weighing more than 25 kg shall be provided with eyebolts, lugs or other

means to facilitate safe lifting. b. The motor construction shall be suitable for easy disassembly and re-assembly. The

enclosure shall be sturdy and shall permit easy removal of any part of the motor for inspection and repair.

c. The rotor bars shall not be insulated in the slot portion between the inner core laminations for squirrel cage motors.

d. All bearings shall be fitted with oil or grease lubricators. Motor bearings shall not be subjected to any external thrust load. Unless otherwise specified, motor bearings shall have an estimated life of at least 40,000 hrs. It shall be possible to lubricate the bearings without dismantling any part of the motor. All terminals shall be of the stud type of adequate size for the particular duty, marked in accordance with an approved standard and enclosed in a weatherproof box.

e. The equipment shall be thoroughly degreased, all rust, sharp edges and scale removed and treated with one coat of primer and finished with two coats of grey enamel paint.

Terminal Box

a. Terminal boxes shall be of weather proof construction designed for outdoor

service. To eliminate entry to dust and water, gaskets of neoprene or approved equivalent shall be provided at cover joints and between box and motor frame. It shall be suitable for bottom entry of cables. It shall be capable of being turned through 360 degree in steps of 90 degree.

b. The terminals shall be of the stud type with necessary plain washers, spring washers and checknuts. They shall be designed for the current carrying capacity and shall ensure ample phase to phase and phase to ground clearances. Suitable cable glands and cable lugs shall be supplied.

c. Separate terminal boxes shall be provided for each of the following:

a. Stator Leads

b. Space Heaters

Accessories

Page 340: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

125 of 267

Drain Plugs: Motors shall be provided with drain plugs, so located to drain water, resulting from condensation or due to other causes, from all pockets in the motor casing.

Heating during Idle Period

a. For motors rated below 30 kW, during idle periods, the stator winding will be

connected to required single phase, 50 Hz, AC supply for heating and elimination of moisture. The supply will be connected between any two terminals.

b. Motors rated 30kW and above shall have space heaters suitable for 230V, single phase, 50 Hz, AC supply. Space heaters shall have adequate capacity to maintain motor internal temperature above dew point to prevent moisture condensation during idle period. The space heaters shall be placed in easily accessible positions in the lowest part of the motor frame.

Earthing Pad

Two independent earthing pads of non-corrodible metal shall be welded or brazed at two locations on opposite sides complete with suitable bolt and washers for earthing. These earthing pads shall be in addition to earthing stud provided in the terminal box.

Rating Plate

a. The following details, in addition to those specified in applicable standards shall be

included on the rating plate. b. Rated voltage, kW rating, frequency, efficiency, power factor, temperature rise of

windings in degree centigrade at rated load, and ambient conditions. c. Type of bearings, recommended lubricant, lubricating interval & re-lubricating

quantity. Tests

a. Motor shall be subjected to all the type test (one from similar rating of each lot) and routine tests as per applicable standard, in the presence of the Engineer. Copies of test certificates for all brought out items shall be furnished at the time of inspection for the Employer’s approval.

b. The Bidder shall ensure to use calibrated test equipment / instruments having valid calibration test certificates from standard laboratories traceable to National / International standards.

27 Automation of Plant

The complete Sewage Treatment Plant, irrespective of the treatment technology, shall be fully automatic based on PLC based control with a SCADA system. PLC based automation system

Page 341: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

126 of 267

with application software shall be offered to control all pumps, valves, blowers, VFDs, probes etc., as per bidder’s design including I/Os with 20% spares. HMI Panel to comprise up-to-date standard PC with CPU, monitor, printer, SCADA software with dynamic flow charts, pictures, screens, alarms, historical trends, reports etc. SACDA based Automation system to monitor and control the plant continuously. Bidder shall submit a detailed plant control philosophy for the approval of the employer.

28 Equipment selection

a. Equipment means all items that are mechanical, electrical, instrumentation, cables,

switchgear, MCBs, transformer, DG set etc. and are not part of civil construction work. b. Bidder shall select equipment to meet following criteria.

• Equipment shall meet or exceed all the specifications mentioned in this Bid Document. • Equipment consuming electrical energy, specially pumps and blowers, shall be of energy

efficient design to have minimal possible O&M cost, and shall be of standard approved makes as IS.

• Equipment must be serviceable in India. Bidder shall obtain performance and warranty certificates from the Manufacturers, and the same shall be in the name of the Bidder and transferable to the Employer.

• Before procurement, Bidder shall obtain Employer’s approval for all equipment satisfying the above conditions.

29 Manufacturer's Experience

• The proposed manufacturers of different equipment should have manufactured and

operated equipment in the last 5 years having specified constructional features equal to or higher than the specified size and rating.

Page 342: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

127 of 267

30 Laboratory Equipment

Laboratory equipments shall be provided as mentioned below:

S.No Description Quantity

1 PH Meter 1 No

2 Conductivity Meter 1 No

3 D.O. Meter 1 No

4 Distillation Apparatus 2 Nos

5 B.O.D. Incubator 1 No

6 C.O.D. Apparatus 1 No

7 Hot Air Oven 2 Nos

8 Incubator 2 Nos

9 Refrigerator 1 No

10 Water Bath 1 No

11 Dessicator 3 Nos.

12 Hot Plate 2 Nos

13 Auto Clave 1 No

14 Thermometers 4 Nos.

15 Electronic Balance (Single Pan) 1 No.

16 Automatic Burettes 4 Nos.

17 Fixed Vol. Pipettes 4 nos.

18 Laminar Flow 6 nos.

19 Centrifuge 1 No.

20 Magnetic Stirrer 1 No.

21 Filtration Assembly 1 No.

22 Vacuum pump 1 No.

23 Aeration Pump 1 No.

24 Microscope 1 No.

Page 343: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

128 of 267

25 Physical Balance 1 No.

26 Muffle Furnace 1 No.

27 Fish aquarium 1 No.

28 TOC analyzer 1 No.

In addition to these, Bidder shall also provide necessary chemicals, glassware and reagents required for testing in the laboratory and other accessories required for Laboratory testing.

Reference to specifications/ code of practice

Description BIS No.

Centrifugally Cast (Spun) Iron pressure pipes for Water, gas and sewage including fittings.

1536-1989

Specifications for Centrifugally Cast (Spun) D.I. Pipes for Water, Gas and Sewage.

8329-1990

D.I.Fittings for pipes for water, gas & sewage 9523-1980

Dimensional requirements of rubber gaskets for Mechanical joints and push on joints for the use With C.I.D.I.Pipes

12820-1986

C.I. Specials for Mechanical and push on flexible joints for pressure pipe lines for water, gas & sewage

13382-1992

Horizontally cast iron double flanged pipes for water, Gas and sewage

7181-1986

Cast iron fittings for pressure pipes for water, gas And sewage 1538-1976 (Part 1 to 24)

Rubber rings for jointing C.I.Pipes, R.C.C. Pipes & AC. Pipes 5382-1969

Rubber rings for jointing P.S.C. pipes 5382-1985

Hemp yarn 6587-1966

Rubber Insertion to be used in jointing CIDF pipes 638-1979

Bolts & Nuts to be used in jointing CIDF Pipes 1363-1967

Unplasticized PVC Pipes for potable water supplies 1363-1967

Injection moulded PVC socket fittings with Solvent cement 7834-1987 (Part 1 to 8)

Page 344: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

129 of 267

joints for water supplies.

Fabricated PVC fittings for potable water supplies 10124-1988 (Part 1 to 13)

Methods of test for unplasticized PVC pipes for potable water supplies

12235-1986 (Part 1 to 11)

Sluice valves for water works purposes (50 to 300 mm Dia size)

780-1984

Sluice valves for water works purposes (300 to 1200 mm Dia size)

2906-1984

Surface boxes for sluice valves 3950-1979

Manhole covers for sluice valves 1726-1974

Laying of Concrete pipes 783-1985

Laying of Cast-Iron Pipes 3114-1985

Laying of PSC Pipes 126 of APSS & 783-1985

Laying of C I Pipes 12288-1987

Laying and jointing of Unplasticized PVC pipes 7634-1975 (Part 3)

Stoneware pipes IS:651-1992

Code of Practice for Ancillary Stonewares in sewerage system IS:4111-1986 Part I & II

Precast Manhole covers and frames IS:12592-1998 Part I & II

Code of Practice for plain and reinforcement concrete IS:456:2000

Batch type concrete mixer 1791-1968

Sheep foot roller 4616-1968

Safety code for excavation works 3764-1966

Safety code for scaffolds and ladders Part-I Scaffolds

Part II- Ladders

3696-1966 (Part I)

3696-1966 (Part-II)

Safety code for piling and other deep foundations 5121-1969

Safety code for working with construction machinery 7293-1974

Page 345: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

130 of 267

Government of India Manual on Water Supply and Treatment May 1999 ( Revised )

Gravel for packing 4091 –1967

Hard drawn Steel Wire 1785 – 1983 ( Part I and II)

Structural Steel 226 – 1975

Hard rolled mils steel for concrete 1139 – 1966

Hard drawn Steel Wire 1566 – 1982

American Society for Testing of Materials

British Standard 2494 – 1955 Part I

Welding Electrodes 814 – 1970

Steel Sheets 225 – 1975

Guniting 7322 – 1994

Welded Joints 3589 – 1966 and 2041 – 1962

Tensile Test 223 – 1950

Mechanical and Electrical Works

Earthing 3043 – 1966

Transformer 1180 – 1964

Page 346: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

131 of 267

SPECIFICATIONS FOR ELECTRICAL WORKS

1. GENERAL

Introduction:

This section of the specification sets out the standard for items of electrical system to be executed by the Bidder. This section describes the basic system that has to be adopted for the electrical power distribution of sewage treatment plant. The selection of power distribution system equipment ratings and layout of the electrical equipment shall consider ease of installation, maintenance and modular addition of equipment for future expansion. All the components of the electrical system shall withstand the environmental conditions of the Saurashtra region as described hereafter.

The equipment shall be complete in all respects and device not included in the specifications but essential from code, regulation, statutory requirement, standard practice or operational flexibility point of view shall be included by the Bidder.

Standards

The equipment standards applicable for the design and installation of the electrical, control, monitoring systems are the relevant Indian standards. Cognizance shall also be taken of International standards i.e. International Electro Technical Commission (IEC) where Indian standard is not available or not clear about the subject.

It shall be designed, assembled and tested to the satisfaction of the Executive Engineer and shall conform to the relevant standards published by the Indian Standards Institution, wherever available, in order that specific aspects under the Indian Conditions are taken care of.

The applicable standards established by the Bureau of Indian Standards govern the materials and workmanship employed in the manufacture of all equipment/items are:

IS 191 - Copper – Specification

IS 319 - Free Cutting Leaded Brass Bars, Rods and Section Specification

IS 325 - Three phase induction motors

IS 335 - New insulating oils

Page 347: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

132 of 267

IS 374 - Electric ceiling type fans and regulators

IS 379 - Anhydrous sodium sulphate, pharmaceutical

IS 513 - Cold reduced low carbon steel sheets and strips.

IS 694 - PVC Insulated cables for working voltage up to and including 1100 V.

IS 722 - Specification for AC Electricity Meters.

IS 732 - Code of practice for electrical wiring installations

IS 1079 - Hot Rolled Carbon Steel Sheet and Strip – Specification.

IS1169 - Electric pedestal type fans and regulators

IS1248 - Direct acting indicating analogue electrical measuring instruments and their accessories

IS 1255 - Code of practice for installation and maintenance of power cables up to and including 33kV rating.

IS 1271 - Thermal evaluation and classification of electrical insulation.

IS 1293 - Plugs and socket- outlets of rated voltage up to and including 250 volts and rated current up to 16 amperes – Specification.

IS 1544 - Cotton calico

IS 1554 - PVC insulated (heavy duty) electric cables

IS 1868 - Anodic Coatings on Aluminium and its Alloys – Specification.

IS 1897 - Copper strip for electrical purposes – Specification.

IS 1944 - Code of practice for lighting of public thoroughfare: Part 5 Lighting for grade separated junctions, bridges and elevated roads.

IS 2026 - Power transformers

IS 2062 - Hot Rolled low, medium and high tensile structural steel

IS 2099 - Bushings for alternating voltages above 1 000 Volts

IS 2148 - Electrical apparatus for explosive gas atmospheres – Flameproof enclosures‘d’.

Page 348: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

133 of 267

IS 2190 - Selection, Installation and Maintenance of First-aid Fire Extinguishers —code of practice.

IS 2206 - Flameproof electric lighting fittings

IS 2253 - Designation for types of construction and mounting arrangement of rotating electrical machines

IS 2309 - Code of practice for protection of buildings and allied structures against lightning.

IS 2419 - Dimensions for panel mounted indicating and recording electrical instruments

IS 2544 - Porcelain post insulators for systems with nominal voltage greater than 1000 V.

IS 2546 - Specification for galvanized mild steel fire bucket.

IS 2551 - Danger notice plates

IS 2629 - Recommended Practice for Hot-Dip Galvanizing of Iron and Steel

IS 2633 - Methods for testing uniformity of coating of zinc coated articles

IS 2667 - Fittings for rigid steel conduits for electrical wiring

IS 2705 - Current transformers

IS 2925 - Specification for Industrial Safety Helmets

IS 2993 - A.C. motor capacitors

IS 3043 - Code of practice for earthing

IS 3070 - Lighting arresters for alternating current systems

IS 3156 - Voltage transformers

IS 3231 - Electrical relays for power system protection

IS 3347 - Dimensions for porcelain transformer bushings for use in lightly polluted atmospheres.

IS 3400 - Methods of test for vulcanized rubbers

IS 3419 - Fittings for rigid non-metallic conduits

Page 349: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

134 of 267

IS 3427 - A.C. Metal Enclosed Switchgear and Control gear for Rated Voltages Above 1 kV and Up to and Including 52 kV.

IS 3480 - Flexible steel conduits for electrical wiring

IS 3646 - Code of practice for interior illumination

IS 3837 - Accessories for rigid steel conduits for electrical wiring

IS 3842 - Application guide for electrical relays for ac systems

IS 3854 - Switches for domestic and similar purposes.

IS 3975 - Mild steel wires, formed wires and tapes for armouring of cables

IS 4759 - Hot-dip zinc coatings on structural steel and other allied products

IS 4770 - Rubber Gloves - Electrical Purposes – Specification.

IS 4795 - Holders for Indicator Lamps for Electronic and Telecommunication Equipment.

IS 5571 - Guide for selection of electrical equipment for hazardous areas

IS 5572 - Classification of hazardous areas (other than mines) having flammable gases and vapours for electrical installation

IS 5578 - Guide for marking of insulated conductors

IS 5621 - Hollow insulators for use in electrical equipment

IS 5819 - Recommended short-circuit ratings of high voltage PVC cables.

IS 5831 - PVC insulation and sheath of electric cables.

IS 6229 - Method for Measurement of Real-ear Protection of Hearing Protectors and Physical Attenuation of Earmuffs.

IS 6600 - Guide for loading of oil immersed transformers

IS 6665 - Code of practice for industrial lighting

IS 7098 - Crosslinked polyethylene insulated PVC sheathed cables

IS 7752 - Guide for improvement of power factor in consumer installation.

IS 8130 - Conductors for insulated electric cables and flexible cords.

IS 8224 - Electric lighting fittings for division 2 areas

Page 350: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

135 of 267

IS 8468 - On-load tap changers

IS 8478 - Application guide for on-load tap changers

IS 8752 - Towing hook for use between trailers of up to 5 tonnes gross mass and transport tractor

IS 8789 - Values of performance characteristics for three phase induction motors

IS 8828 - Electrical Accessories - Circuit Breakers for Over Current Protection for Household and Similar Installations.

IS 9283 - Motors for submersible pump sets

IS 9334 - Electric motor operated actuators.

IS 9537 - Conduits for electrical installations

IS 9583 - Emergency lighting units

IS 9677 - Guide for limits of temperature-rise of the windings of electrical equipment when tested by different methods

IS 9678 - Methods of measuring temperature rise of electrical equipment.

IS 9921 - Alternating current disconnectors (isolators) and earthing switches for voltages above 1000 V

IS 9974 - High pressure sodium vapour lamps

IS 10118 - Code of practice for selection, installation and maintenance of switchgear and control gear

IS 10322 - Luminaires

IS 10418 - Drums for electric cables

IS 10601 - Dimensions of terminals of high voltage switchgear and control gear.

IS 10810 - Methods of test for cables

IS 11037 - Electronic type fan regulators

IS 11171 - Specification for Dry-Type Power Transformers.

IS 11353 - Guide for uniform system of marking and identification of conductors and apparatus

Page 351: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

136 of 267

IS 12065 - Permissible limits of noise level for rotating electrical machines

IS 12615 - Energy efficient induction motors- three phase squirrel cage.

IS 13340 - Power Capacitors of Self-healing Type for AC Power Systems having Rated Voltage up to 650 V – Specification.

IS 13341 - Requirements for ageing test, self-healing test and destruction test on shunt capacitors of the self-healing type for ac power systems having a rated voltage up to and including 650 V.

IS 13346 - Electrical apparatus for explosive gas atmospheres-General requirements

IS 13369 - Stationary lead acid batteries (with tubular positive plates) in monobloc containers.

IS 13383 - Methods of Photometry of Luminaires.

IS 13440 - Code of safety for methyl chloride.

IS 13703 - Low Voltage Fuses for voltages not exceeding 1000V AC or 1500 V DC.

IS 13779 - AC Static Watt-hour Meters, Class1 & 2

IS 13849 - Specification for portable fire extinguisher dry powder type (constant pressure).

IS 13875 - Digital measuring instruments for measuring and control.

IS 13925 - Shunt capacitors for ac power systems having a rated voltage above 1000 V.

IS 13947 - Low-voltage switchgear and control gear

IS 14697 - AC Static transformer operated Watt hour and VAR Hour Meters

IS 14981 - Live working-Earthing or earthing and short-circuiting equipment using lances as a short-circuiting device-lance working

IS 14927 - Cable trunking and ducting systems for electrical installations

IS 14993 - Saddles, pole clamps (stick clamps) and accessories for live working

IS 15086 - Surge arresters

Page 352: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

137 of 267

IS 15652 - Insulating mats for electrical purposes – Specification.

Other applicable standards established by the International Electro technical commission (IEC), NFC etc. govern the materials and workmanship employed in the manufacture of all equipment/items are:

IEC 60076 - Power transformers - Part 11: Dry-type transformers.

IEC 60335 - Household and similar electrical appliances - Safety - Part 1: General requirements.

IEC 60669 - Switches for household and similar fixed-electrical installations - Part 1: General requirements.

IEC 60751 - Industrial platinum resistance thermometers and platinum temperature sensors.

IEC 60789 - Medical electrical equipment - Characteristics and test conditions of radionuclide imaging devices - Anger type gamma cameras.

IEC 60896 - Stationary lead-acid batteries - Part 22: Valve regulated types – Requirements.

IEC 60947 - Low-voltage switchgear and control gear - Part 1: General rules.

IEC 61537 - Cable management - Cable tray systems and cable ladder systems.

IEC 61643 - Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles.

IEC 61921 - Power capacitors - Low-voltage power factor correction banks.

IEC 62305 - Protection against lightning - Part 4: Electrical and electronic systems within structures.

IEC 62271 - High-voltage switchgear and control gear - Part 101: Synthetic testing.

Where provisions of the pertinent codes and standards conflict with these Specifications, Drawings and Datasheets or with each other, comply with the more stringent provision. Use the latest issue of Standards. Make available at least one copy of Standards for reference during construction.

Regulation

Page 353: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

138 of 267

It is essential that the electrical power distribution system will comply in all respects with the relevant statutory and regulatory instruments of state of Meghalaya and that of India.

The relevant, state and national, statutory and regulatory instruments for electrical installations are as follows:

The Indian Electricity Rules 1956

The Electricity Act 2003

Meghalaya State Electricity Act

Safety and security

It is essential at all times to maintain a safe system of working and to comply with all enactments, regulations and working rules relating to safety, security, health and welfare of all persons who may be affected by the work.

In particular it has to be ensured that only persons who are properly trained for their duties are employed, and that the correct tools and procedures are used.

Nothing which has been written into or omitted from this document shall be taken to relieve the Bidder from the obligations under this clause. No clause in this specification shall prevent the executing agency from drawing the attention of the Engineer to any feature of the works which is not consistent with normal safety practices nor prevent him putting forward proposals at any time which would increase the safety of the installations.

The design should include all reasonable precautions and provisions for the safety of operating and maintenance personnel.

Environmental Special Site Conditions

All equipment shall be designed for operation in tropical humid climate having 450C ambient temperature as a 24 hours average with a short time maximum temperature of 500C and a humidity of 100 percent. Maximum temperature and maximum humidity however are not likely to occur simultaneously. The derating of the equipment shall be done on the basis of the maximum ambient temperature of 500C.

Continuity of equipment operation is the first consideration and the design shall be such as to provide facilities to simplify inspection, testing, maintenance, and cleaning and general repairs at site.

Page 354: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

139 of 267

The design should include all reasonable precautions and provisions for the safety of operating and maintenance personnel.

Electrical switchgear room environment

Electrical switchgear rooms shall be designed to provide a non-hazardous, clean and dry location for the switchgear/motor control centers/power control centers and associated equipment. Rooms shall be ventilated with air taken from non hazardous and clean areas.

The floor covering and wall finish shall eliminate the production of dust from within the room.

No pipe work shall be routed in electrical rooms. If this cannot be avoided, precautions shall be taken to ensure that no liquid from a burst pipe or leaking joint can enter the electrical room.

Vehicle access shall be provided to equipment doors.

Abbreviations

For the purpose of this specification the following abbreviations of electrical terms have been used.

R - ‘red’ phase

Y - ‘’yellow’ phase

B - ‘blue’ phase

ac - alternating current

dc - direct current

A - ampere

mA - milliampere

V - volt

Page 355: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

140 of 267

kV - kilovolt

kW - kilowatt

kVA - kilovolt ampere

kWh - kilowatt hour

MVA - megavolt ampere

Hz - hertz (cycles per second)

HV - high voltage

IEC - International Electro Technical Commission

IS - Indian Standard

LV - low voltage

SP - single pole

SPN - single pole and neutral

DP - double pole

TP - triple pole

TPN - triple pole and neutral

HRC - high rupturing capacity

MCB - miniature circuit breaker

MCC - Motor control centre

MCCB - moulded case circuit breaker

OEM - original equipment manufacturer

PCC - power control centre

Page 356: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

141 of 267

PMCC - power and motor control centre

RCD - residual current device

ACB - air circuit breaker

VCB - vacuum circuit breaker

Voltage

System Voltage

The system power supply will be 11KV, at 50Hz provided by Meghalaya Power distribution corporation Ltd. (MePDCL) and derived from an overhead line supply.

Supply Voltage 11 kV, 3 phase, 3 wire, 50Hz derived from the power supply company

LV system distribution network 415V 3 phase 4 wire neutral solidly earthed

Motors less than 250kW 415 V, 3 phase, 3 wire, 50 Hz

Anti Condensation Heaters 230V, 1 phase, 2 wire, 50 Hz

Lighting and Small Power 230V, 1 phase, 2 wire, 50 Hz

Small Power Socket Outlets 230V, 1 phase, 2 wire, 50 Hz.

Switchgear Protection

HV switchgear protection 24V dc battery back up

Control Voltages

LV contactors 240V, 1 phase, 50Hz.

Drawing, Instructions and Certificates

The tenderer shall supply with the tender a schematic electrical circuit diagram showing thereon the various switches, cables and motors. Dimensions shall be in metric units.

On acceptance of the tender the Bidder shall submit 3 sets of the following drawings for prior approval of Executive Engineer, Shillong Municipal Board.

• Layout with cable, sizes and all details. • Circuit diagram

Page 357: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

142 of 267

• Wiring diagram of starters, factory-made panels. • Front elevation of the control panel.

Voltage and frequency variations

Electrical equipment shall function satisfactorily during voltage fluctuations within +10% and -10% of the stated voltage levels and at frequencies within +/-5% of the stated frequency.

Phase sequence

Phase sequence shall be specified in alphabetical order, each phase reaching its maximum in time sequence in this order. Bus bars shall be marked as R.Y.B. and N as seen from the front or operating side of a switchboard or panel.

Cable terminals and apparatus which are to be connected directly or indirectly to supply conductors shall be marked U.V.W. The neutral and earth shall be marked as N, E respectively.

Voltage drop criterion

The steady-state voltage drop of each circuit shall be calculated on the basis that the total load on the circuit is equal to the sum of the nameplate full load amperes of all connected utilisation devices that will be in operation under normal conditions.

The normal steady-state voltage drops in the distribution system between the secondary terminals of the supply transformer and the utilisation devices shall be limited to values that allow rated voltage to be supplied to each energised and loaded device.

The most suitable setting for the power transformer tap changers shall be established following consideration of the supply configuration and resultant voltage drop conditions.

The actual distribution of the allowable overall steady-state voltage drop across the different parts of the electrical system will depend on the circuit configurations and distances between circuit components. As a guide, voltage drops shall be distributed in accordance with voltage drop detailed below.

The voltages at all motors during start up shall be maintained at a value which ensures that there is sufficient accelerating torque developed by the motor to give a safe run up time.

The maximum system transient impedance shall be used in calculating voltage drops relating to motor starting, restarting and re-acceleration requirements.

Vendor requirements for special equipment requiring close voltage regulation shall be taken into account when designing the overall system to ensure that the voltage drops do not exceed those specified.

Page 358: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

143 of 267

During starting or re-acceleration of a motor, either individually or in a group, the voltage dip at the motor terminals shall not vary more than 20% from rated voltage when started direct on line under the worst operating scenario i.e. largest motor started with minimum number of power sources and minimum fault level.

The above shall be achieved within the constraints imposed by the electrical system and as feasible with regard to process requirements, safety and economic factors.

Under steady state conditions, the maximum voltage drop in various sections of electrical system shall be limited to the following:

Cables/bus-bar ducting between transformer and switchboard : 0.5%

Cables/bus-bar ducting between generator and switchboard : 0.5%

Cables between HV switchboard and HV motor : 3%

Cables between LV switchboard and LV motor : 5%

Cables between LV switchboard and lighting panel : 1%

Cables between lighting panel and farthest lighting point : 4%

Compatibility

Components used with electrical switchgear, motor control gear and control panels shall be uniform throughout the works in order to reduce spare holdings. Electrical enclosures housing switchgear, motor control gear, control systems, terminations shall each be of similar construction throughout the works in order to achieve a consistent appearance.

Enclosures

Enclosures shall be constructed to provide an adequate level of protection form the environment. The following minimum standards shall be applied unless otherwise specified:

• Switchgear and control panels located in switchgear or control rooms - IP 54 • Switchgear and control panels located in plant rooms - IP 55 • Equipment located externally in sheltered locations - IP 56 • Equipment located externally in exposed locations - IP 65 • Equipment liable to be periodically submerged - IP 68.

The IP ratings are defined by IEC 529.

Page 359: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

144 of 267

Potentially explosive areas

Ventilated dry wells and wet wells open to the atmosphere shall be considered to be non -hazardous.

Closed wet wells and sewers shall be considered to Zone 1 areas.

Equipment shall be selected and installed and inspected in accordance with the requirements IS 5571.

Identification

Each main and auxiliary item of plant shall have permanently attached to it in a conspicuous position a nameplate and rating plate. Upon these shall be engraved, in English, the manufacturer’s name, direction of rotation, type and serial number of plant, details of the loading and duty at which the item of plant has been designed. All indicating and operating devices shall have securely attached to them or marked upon them designations as to their function and proper manner of use. Provision shall be made to incorporate descriptive numbering codes as indicated on the layout drawings.

Such nameplates, rating plates and labels shall be of a rigid type, at least 3 mm thick, laminated and engraved plastic material, with black block capitals on a white background. The labels shall be fixed by non-ferrous or stainless steel screws.

Warning labels shall be of similar construction with black block capitals on a yellow background.

Weatherproof labels for use outside the buildings shall be rigid type laminated plastic.

All field items shall be tagged with 50 × 25 mm engraved labels. The label shall state the item tag number and hazardous area classification in case it falls under it and shall be attached by a corrosion resistant ring to a fixed portion of the item. The ring shall retain the tag securely but shall allow transfer to a replacement item when necessary.

Warning labels shall be provided where necessary to warn of dangerous circumstances or substances. Inscriptions or graphic symbols shall be black on yellow background and to internationally recognized standards.

Instruction labels shall be provided where safety procedures such as wearing of protective clothing are essential to protect personnel from hazardous or potentially hazardous conditions. These labels shall have inscriptions or graphic symbols in white on a blue background.

Harmonics

The limits for harmonics in the power system as a result of non-linear loads are to be limited to those standards imposed by the power supply company i.e. MePDCL.

Page 360: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

145 of 267

No significant non-linear loads are proposed therefore the existing background harmonic content of the supply will be unaffected. There is no evidence of problems at present with harmonic content of the power supply.

Surge Protection

Surge protection shall be provided on power systems equipment fed from overhead line systems. Usually this will apply to HV overhead supplies feeding to sites. In this case the surge protection shall be provided by the Bidder near to the point of common coupling or as per guidelines of the power supply company.

Surge protection shall be provided on at each end of long LV cables e.g. such as those feeding the switchboards at longer distance.

Surge protection shall be provided at the main control panel end of instrumentation cabling connecting equipment located external to buildings.

Earthing system

The electrical installation shall where required be connected to the general mass of the earth by an earthing conductor as per IS 3043.

Where the earth electrode system is not provided by the power supply authority or where a requirement for a standby or base load generator is specified the installation shall comprise one or more earth electrodes, earthing strip network, mesh or a combination of these in order to obtain the required earth electrode resistance.

Earth electrodes where used shall be of galvanized iron. The rod shall penetrate a minimum of three meter below ground level. Where multi-rods are used they shall be separated by a distance of not less than the driven length.

Earth rods shall have hardened tips and caps and be extendable. Bare galvanized iron strip buried at a minimum depth of 600 mm shall be used for interconnection of rods.

Where soil conditions make the use of rod type electrodes impracticable a grid configuration may be used comprising horizontally buried bare galvanized iron strips as per IS 3043. Strip shall be buried at a minimum depth of 600 mm.

Each earth electrode rod if used shall be provided with an approved non-ferrous clamp for the connection of the earthing conductor or tape as required. These connections shall each be housed in individual concrete inspection chamber set flush to the finished ground level and shall allow disconnection for testing of individual electrodes.

All materials used for the earth electrode installation shall be purpose made for the application and shall be suitable for the site and soil conditions.

Page 361: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

146 of 267

Unless otherwise stated all excavation of trenches for the installation of the earth electrodes and the inspection pit shall be carried out by the Bidder.

The Bidder shall demonstrate that the resistance of the electrodes to earth and the continuity of the earth network are within the limits specified. Any additional earth electrodes and test instruments required for the tests shall be provided by the Bidder.

Marker posts and plates shall be provided to mark the route of buried strip electrodes. The markers shall be similar to those provided for cable routes.

Lightning protection

Lightning Protection system shall be provided for protection against atmospheric discharges on the on all new buildings. This shall consist of an air termination network of horizontal and/or vertical conductors. The air termination network shall be connected to earth electrodes by an adequate number of down conductors. The earth electrodes shall be connected to the plant earthing system.

The lightning protection system shall be designed and installed in accordance with IS 2309 Standards. The normal air termination shall be tinned copper strip. All metallic ducts, antennae, hand railing, etc. shall be bonded to the air termination.

The earth electrode resistance of the lightning protection earth electrode system alone shall not be more than ten ohms. Each lightning protection system should be bonded locally to the power earth at not less than two points.

Scope

The work to be carried out by the Bidder can be divided into a number of categories namely:

The scope covered here is representative in nature and Bidder shall complete the work in all respect as per site requirement and as per norms laid down by MePDCL.

a. To do liaison with concerned department of MePDCL regarding sanction of power requirement for proposed sewage treatment plant; fill in requisite application form duly signed by competent authority of SMB. SMB shall issue the necessary authorization letter to the Bidder to complete all formalities in this regard. Deposit Fees and inspection charges in this regard will be borne by SMB.

b. To construct the substation to accommodate two pole structure and its accessories and Distribution transformers and its accessories etc. as per IE rules and as per requirement of MePDCL.

Page 362: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

147 of 267

c. Bidder shall provide HV circuit breaker /Ring Main Unit (RMU) with requisite protection features in line with MePDCL requirement, in case aggregate installed Transformer capacity /apparatus capacity is above 1000KVA.

d. To provide four pole structure with all accessories to receive power from MePDCL nearest 11KV overhead line source in consultation and as per guidelines of the MePDCL and as per IE rules and Indian standard code of practice.

e. To provide 22kV or 11 kV/0.433 kV, low loss Distribution transformers to feed sewage treatment plant load.

f. To provide energy efficient motors optimized to meet the requirement of efficiency values of EFF1/ EFF2, as per IS 12615.

g. To provide heavy duty capacitor banks/APFC nearest to load to maintain the load power factor up to 0.99 Lag. This shall facilitate availing incentives and or discounts from the utilities in the monthly electricity bills.

h. To provide 415 V (Low voltage) switchboard to feed the medium and low voltage load etc. i. To provide XLPE insulated HV and LV power cables with FRLS feature and control cables

wherever required. j. To provide indoor and outdoor illumination. k. To provide sound earthing system for equipments and interconnecting the plant earthing grid

with the utility earth grid at least at two points. l. To arrange for harmonic filtration to overcome the distortion introduced by harmonics

generated by the non-linear devices e.g. soft starters, lamps etc. m. To provide protection against lighting and switching surges. n. To provide standby generation to feed critical load. o. To prepare, submit and get approval on the necessary SLD, layout etc. for electrical

installations from competent authority from Meghalaya power distribution company ltd (MePCDL). Deposit Fees and inspection charges in this regard will be borne by SMB.

Transportation of all equipment from manufacturers/suppliers work/site to the project site inclusive of all intermediate handling and unloading / storage at site. The Bidder shall take the responsibility for all the testing and inspection to be conducted in manner as specified in this specification.

Supply, erection, inspection, testing, start up and running of the equipment during trial run / performance guarantee period at rated capacity and speed. Furnishing all erection and commissioning supervision service. The Bidder shall also arrange for maintenance of equipment during performance guarantee and commissioning period.

Application of the final paints of approved colour shall be done by the Bidder after complete erection and testing.

Page 363: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

148 of 267

The Bidder shall arrange technical experts of equipment from OEM as and when necessary until the commissioning and guaranteed run of the plant is completed.

The Bidder shall arrange operation and maintenance for the period of two years after successful completion of defect liability or performance guarantee period

Submittals : Submit shop drawings for electrical equipments/items as required not limited to following list.

• Design Calculations • Equipment Lists covering list of Bearings and Seals • Equipment Data Sheets • Electrical Single Line Diagrams • Schematic and Control Diagrams • General Arrangement Drawings of electrical equipments • Earthing Layout • Equipment Dimensional Drawings. • Electrical Equipment Weights. • Cable Schedules and Cable Routing Drawings. • Transformer, Motor, switchgear etc. Performance Curves • Noise and Vibration Test Certificates. • Factory Test Reports and Performance test Certificates. • Construction Power Supply Requirements • Protection co-ordination Settings • Interface or Inter-connection Diagrams / Lists • Quality control document

Submit to Inspection Authority and the Power Supply Authority the required copies of relevant drawings and specifications for examination and approval prior to commencement of work.

Neatly assemble and submit operating and maintenance data containing booklets, “AS BUILT” drawings, instruction sheets, etc., issued by the suppliers and relating to the equipment intended to be installed under this section and necessary or desirable for the maintenance, repair or operation of the equipment along with “AS BUILT” drawing.

Transformer Yard

One number 11 kV / 0.433 kV low loss distribution transformer at treatment plant site is required to be installed on 4-Pole structure. This transformer and 4-Pole structure shall be suitable for out door installation to draw power conforming to relevant specifications.

Page 364: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

149 of 267

The transformer and the four pole structure shall be installed on suitably designed RCC pedestals M20 grade cement concrete, designed and constructed as per manufacturer’s recommendations. Necessary MS rails shall be embedded on top of these pedestals for Installation of transformer. The size of the pedestals shall be sufficient as per the Manufacturer’s recommendations and the height shall not be less than 2m.

Suitable size of the Transformer Yard shall have provided with hard stone metal on ground. Barbed wire fencing shall be provided to a height of 2.4 m all round, using galvanized steel barbed wire of 8 rows conforming to IS:278. Fencing wire shall be fixed to RCC poles 2.4 m high, having 0.15 m sq section at bottom and 0.12 m sq section at top. The poles shall be made of cement concrete 1:2:4 using 10 mm to 20 mm size granite or basalt metal with 4 nos. of 10 mm dia. MS reinforcement and 70 mm dia. 6 mm stirrups. The poles shall be embedded in cement concrete foundation of 1:4:8 mix using 40 mm to 50 mm granite or basalt or trap metal. The foundation size shall be 0.5 m x 0.5 m x 0.5 m. The area shall be protected with MS gate of size 3 m x 2 m of approved design and painted with anticorrosive paints.

Air break switch

The air break (A.B.) switches shall be suitable for operation on 11KV, 3 Ph, 50Hz supply conforming to IS: 9921 with its latest amendment. The air break switches continuous current carrying capacity shall be as per requirement .The air break switch shall be single break, triple pole, gang operated type suitable for horizontal or vertical outdoor installation. It shall have three posts per phase, each post having single insulator unit.

The A.B. switch shall be with arcing horns. The sizes of rods used for arcing horns would be 8 mm. M.S. hot dip galvanized. The current carrying connectors should be of two-bolt type having nuts and bolts, with spring washer & plane washers. Connectors shall be of tinned copper. All ferrous parts shall be hot dip galvanized and copper parts heavily tinned. Each post insulator shall have minimum creepage of 320 mm and should conform to the requirements of IS: 2544.

The rated short time current for 1 sec. shall be 16 kA.

The fixed & moving contacts material shall be electrolytic hard-drawn copper heavily tinned. The contact shall be of high pressure and self aligning type with positive wiping action

Operating mechanism shall comprise of `B' Class G.I. Operating pipe of 32 mm outer diameter and 6 meter length in single piece without joint. The mechanism should give good mechanical leverage with minimum of loose/lost motion. There should be provision for pad-locking in both `on’ and `off' position.

Page 365: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

150 of 267

A.B. switch shall be provided with 9.6 KV, 5 KA valve type lighting arrestors (distribution type) for providing surge protection on the high voltage side of the transformer conforming to the latest IS 3070.

The A.B. Switch shall be tested in accordance with the procedures detailed in IS: 9921.

Distribution Transformer

Oil Filled Transformer

Distribution transformers shall comply with IS 2026.

The kVA and current ratings of every transformer shall be sufficient to enable it to continuously feed the maximum electrical load which shall be connected to it. For this purpose, it shall be assumed that all ‘duty’ drives are running and all lighting loads etc are in operation. Where two identical transformers are used in parallel, it shall possible to continue operation of total plant with one transformer out of service. The calculation shall be carried out for the system with one such transformer out of service. i.e. No. of operating transformer shall be equal to no. of standby transformer.

When the kVA maximum demand from the transformer has been established, it shall be used to establish the maximum current which is to be drawn from the transformer secondary. For this calculation the nominal ‘system voltage’ shall be used.

For each new transformer, the transformer kVA rating shall be at least 20% greater than the rating needed simply to meet the calculated maximum demand. This requirement shall not apply to any ‘unit’ transformer dedicated to a single drive or to another single item of plant.

The following factors shall also be taken into account when selecting the kVA rating of a transformer:

Any need to derate the nominal kVA rating to allow for arduous operating conditions such as a high level of harmonic current;

The need to avoid excessive voltage regulation, due to high starting current, at the time of starting the drive which is fed from the transformer;

The need to limit the prospective fault level for the system fed by the transformer.

The fittings and accessories shall be as specified in Appendix ‘C’ of IS 2026.

Primary and secondary terminals may be bare bushings, cable boxes or bus trunking depending on the method of installation. Whenever compound filled cable boxes are used, it is preferable to

Page 366: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

151 of 267

specify the disconnecting chamber between transformer terminals and cable box to facilitate disconnection of transformer terminals without dismantling the cable connections. In case of extruded insulation cable connections in air, a separate disconnecting chamber is not necessary.

HV cable terminations shall be fully-insulated.

LV cable terminations or bus duct shall be fully insulated and when the transformer is de-energised, it shall be possible to easily disconnect and reconnect the LV cables or bus duct without damaging any insulation or shrouding.

Each oil filled transformer shall comply with IS 2026 and cooled by means of natural circulation of air and windings shall be cooled with help of oil within the transformer (ONAN).

The vector group of each transformer shall be Dyn11 unless otherwise specified.

The primary winding of each transformer shall be provided with an on-load tap-changer with tappings of ± 2.5% and ± 5% in addition to the nominal tapping. Facilities shall be provided for padlocking the tap-changer in each position.

The impedance of the transformer shall be as per Indian standard and as per MePDCL guideline.

Unless otherwise specified, the transformer shall be of the conservator type with a silica gel breather.

Every transformer shall be either skid mounted or provided with wheels. It shall be provided with lifting lugs or jacking points as per rating of the transformer.

Every transformer shall be provided with a liquid temperature gauge. This gauge shall be provided with two volt-free changeover contacts, the first of which is to generate a ‘Liquid temperature high’ signal and the other to generate a ‘Liquid temperature high-high’ signal.

Every transformer rated in excess of 1000 kVA shall be provided with a gas and oil surge (Buchholz) relay with two volt-free changeover contacts which can be set to operate at different points so that an alarm can be generated prior to tripping the relay.

Dry type Transformer

Every dry type transformer shall comply with IS 11171, IS 2026 and IEC 905. The transformer shall be capable of continuously delivering its rated kVA output when cooled naturally by air, i.e. AN type.

Page 367: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

152 of 267

The transformer core shall be constructed from low loss grain orientated silicon steel with laminations adequately insulated and joints mitred and interleaved to provide continuity of the magnetic circuit.

The vector group of each transformer shall be Dyn11 unless otherwise specified.

The primary winding of each transformer shall be provided with an on-load tap-changer with tappings of ± 2.5% and ± 5% in addition to the nominal tapping. Facilities shall be provided for padlocking the tap-changer in each position.

The impedance of the transformer shall be as per the Indian standard and site requirement.

Where the transformer open-circuit secondary voltage is not specified elsewhere in the specification, it shall be selected so that the system fed by the transformer operates at the desired system voltage when the transformer is operating at 80% of its rated secondary current and a power factor of 0.8.

For a primary voltage of 11 kV the basic impulse level (BIL) shall be 75 kV.

It shall not be possible to touch or have accidental contact with any HV live metal parts on the transformer when it is energised and unenclosed.

The transformer shall be housed in a ventilated steel enclosure. The enclosure shall be protected to IP 21. Each cable termination box shall be to IP 21.

The fittings and accessories shall be as specified in Appendix ‘C’ of IS 2026, except serial No. 6, 12 and 15 of C-1. except serial No.1, 6 and 7 of C-2.

Cable

XLPE Cables

Power cables for 415V and upto 11/22/33 KV systems shall be Aluminum or Copper conductor, XLPE insulated, sheathed, armoured and overall PVC sheathed.

The conductors shall be stranded and compacted circular for all cables.

All cables rated 3.8 / 6.6 kV and above shall be provided with both conductor screening and insulation screening. The conductors shall be provided with non-metallic extruded semi conducting screen.

The core insulation shall be with cross linked polyethylene insulating compound dry cured, applied by extrusion. It shall be free from voids and shall withstand all mechanical and thermal

Page 368: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

153 of 267

stresses under steady state and transient operating conditions. It shall conform to the properties given in Table-1 of IS: 7098 (Part-2)

The insulation screen shall consist of non-metallic extruded semi- conducting compound in combination with a non-magnetic metallic copper screen. Unless specified otherwise, the copper screen for all the three cores together shall be capable of carrying the single line to ground fault current value and the duration as specified in the relevant IS.

The conductor screen, XLPE insulation and insulation screen shall all be extruded in one operation by ‘Triple Extrusion’ process to ensure perfect bonding between the layers. The core identification shall be by coloured strips or by printed numerals.

The inner sheath shall be applied over the laid up cores by extrusion and shall conform to the requirements of type ST 2 compound of IS:5831. The extruded inner sheath shall be of uniform thickness. In case of single core cables, there shall be extruded inner sheath between insulation metallic screen and armouring.

For multicore cables, the armouring shall be by galvanized steel strips as per method (b) of IS-7098 (Part-2). If armouring is specified for single core cables in the cable schedule, the same shall be with H4 grade hard drawn aluminum round wire of 2.5 mm diameter.

The outer sheath of the cables shall be applied by extrusion over the armouring and shall be of PVC compound conforming to the requirements of Type ST 2 compound of IS:5831. The minimum and average thickness of outer sheath for unarmoured cables and minimum thickness of outer sheath for armoured cables shall be as per IS:7098 (Part-2).

The thickness of the insulation, inner sheath shall be governed by values given in IS : 7098 (Part-2).

Where specified, 1100 V grade power cables shall also be XLPE insulated and shall meet the requirement specified in IS-7098(Part-1).

PVC Cables All control cables shall be heavy-duty type, 650/1100 V grade with minimum 1.5 sq mm copper conductor, PVC insulated, inner-sheathed, armoured and overall PVC sheathed unless specified otherwise. The core insulation shall be with PVC compound applied over the conductor by extrusion and shall conform to the requirements of type ’A’ compound as per IS: 5831. The thickness of insulation and the tolerance on thickness of insulation shall be as per Table 2 of IS: 1554 (Part-1). Control cables having 6 cores and above shall be identified with prominent and indelible English numerals on the outer surface of the insulation. Colour of the numbers shall contrast with colour of insulation with a spacing of maximum 50 mm between two consecutive numbers. Colour coding for cables up to 5 cores shall be as per Indian standard.

Page 369: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

154 of 267

The inner sheath shall be applied over the laid-up cores by extrusion and shall be of PVC conforming to the requirements of Type ST-1 PVC compound as per IS: 5831. The minimum thickness of inner sheath shall be as per IS: 1554 (Part-1).Single core cables shall have no inner sheath. If armouring is specified for multicore cables in the cable schedule, the same shall be by single round galvanized steel wires where the calculated diameter below armoring does not exceed 13 mm and by galvanized steel strips where this dimension is greater than 13 mm. Requirements and methods of tests for armour material and uniformity of galvanization shall be as per IS-3975 and IS-10810 (Part 41). The dimensions of Armour shall be as per method (b) of IS-1554 (Part -1). If armoring is specified for single core cables in the cable schedule, the same shall be with H4 grade hard drawn aluminum round wire of 2.5 mm diameter. The outer sheath for the cables shall be applied by extrusion and shall be of PVC compound conforming to the requirements of type ST-1 compound as per IS: 5831. The minimum and average thickness of outer sheath for unarmoured cables and minimum thickness of outer sheath for armoured cables shall be as per IS:1554 (Part-1) If heat resisting PVC cables are specified in the cable schedule, the following shall be the requirements: It shall be possible to continuously operate the cable at a maximum conductor temperature of 85ºC. PVC compounds used for heat resistant PVC cables shall be as follows: Conductor insulation - Type C Inner sheath - Type ST 2 Outer sheath - Type ST 2

All cable conductors shall be of electrolyte grade high conductivity annealed copper as per IS 191 or electrolyte grade aluminium as per IS 8130 and shall have a cross-sectional area of not less than:

10 mm2 for cable in between feeder pillar/main lighting distribution board and street lighting poles junction boxes.

2.5 mm2 for power circuits such as to supply power to motor windings.

2.5 mm2 for motor , valve actuator(in case provided) and auxiliary circuits such as for anti-condensation heaters, thermistors, pushbutton stations, etc

1.5 mm2 for indoor lighting circuits.

1.5 mm2 for instrumentation circuits.

Each neutral conductor shall be of the same cross-sectional area as the associated phase conductors.

Page 370: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

155 of 267

Use of Armoured Cables:

Cables which are laid external to the electrical panels shall be armoured as per IS 3975.

Use of Unarmoured Cables

Unarmoured cables shall be used inside each electrical panel for wiring of control circuit.

Cables for Analogue Signals

Instrumentation cables that carry 4 – 20 mA signals shall have an individually screened twisted pair for each signal and shall comply with BS 5308.

Cables for 24 V D.C. Digital (On/Off) Signals

Instrumentation and control cables that carry 24 V D.C. digital signals shall have a collective screen and shall comply with BS 5308.

Cable accessories

The termination kits for use on the systems shall be suitable for the type of cables offered as per this specification.

The accessories shall be supplied in kit form. Each component of the kit shall carry the manufacturer’s mark of origin.

The kit shall include all stress grading, insulating and sealing materials apart from conductor fittings and consumable items. An installation instruction sheet shall also be included in each kit.

The contents of the accessories kit including all consumable shall be suitable for storage without deterioration at a temperature of 45º C with shelf life shall be 5 years.

The terminating kits shall be suitable for termination of the cables to indoor switchgear or to a weatherproof cable box of an outdoor mounted transformer / motor. For outdoor terminations, weather shields / sealing ends and any other accessories required shall also form part of the kit. The termination kits shall be from one of the makes / types mentioned in the specification.

Installation and Termination of Cables

a) The Bidder shall install, test and commission the cables specified in the specification in accordance with drawings and instructions issued by the Engineer or Engineer's Representative. Cables shall be laid directly buried in earth, on cable racks, in built up trenches, on cable trays and supports, in conduit and ducts or bare on walls, ceiling etc. as per drawings. Bidder’s scope of work includes unloading, laying, fixing, jointing,

Page 371: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

156 of 267

bending and termination of the cables. The Bidder shall also supply the necessary materials and equipment required for jointing and termination of the cables.

b) All apparatus, connections and cable work shall be designed and arranged to minimise risk of fire and any damage which might be caused in the event of fire. Wherever cables pass through floor or wall openings or other partitions, suitable bushes of an approved type shall be supplied and put into position by the Bidder. If required by the Engineer or Engineer's Representative the Bidder shall seal the cables into the bushes using fire resisting materials to prevent the spreading of fire through each partition.

c) Inspection on receipt, unloading, storage and handling of cables shall be in accordance with the IS: 1255 and other Indian Standard Codes of Practice.

d) Standard cable grips and reels shall be utilized for cable pulling. If unduly difficult pulling occurs, the Bidder shall check the pull required and suspend pulling until further procedure has been approved by the Engineer's Representative. The maximum pull tension shall not exceed the recommended value for the cable measured by the tension dynamometer. In general, any lubricant that does not injure the overall covering & does not set up undesirable conditions of electrostatic stress or electrostatic charge may be used to assist in the pulling of insulated cables in conduits and ducts.

e) After pulling the cable, the Bidder shall record cable identification with date pulled neatly with waterproof ink in linen tags and shall securely attach such identification tags. Identification tags shall be attached to each end of each cable with non-corrosive wire. The said wire must be non-ferrous material on single conductor power cable. Tags may further be required at intervals on long runs of cables on cable trays and in pull boxes. Cable and joint markers and RCC warning covers shall be provided wherever required.

f) Sharp bending and kinking of cables shall be avoided. The bending radii for various types of cables shall not be less than those specified below

11 KV XLPE multicore : 15 times the overall diameter of the cable armored cables

650-1100 V PVC insulated : 10 times the overall diameter of the cable

If shorter radius appears necessary, no bend shall be made until clearance and instructions have been received from the Engineer's Representative.

g) Power and control cables shall be laid in separate cable racks/trays.

h) Where groups of HV, LV and control cables are to be laid along the same route, suitable barriers to segregate them physically shall be employed.

i) When power cables are laid in the proximity of communication cables, minimum horizontal and vertical separation between instrumentation and control cables carrying analogue and digital signals shall be separated from LV power cables by at least 300 mm and HV power cables by at least 600 mm.Telecommunication cables shall be segregated from all other cables by at least 600 mm.Power and communication cables shall as far as possible, cross at right angles to each other.

Page 372: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

157 of 267

j) Where cables cross roads and water, oil, gas or sewage pipes, the cables shall be laid in reinforced spun concrete or uPVC conduits. For road crossings the pipe for the cables shall be buried at not less than one metre depth.

k) Cables laid in ground shall be laid on a 75 mm riddled earth bed. The cables shall then be covered on top and at their sides with riddled earth of depth of about 150 mm. This is then gently filled up to a depth of about 100 mm above the top of uppermost cable to provide bedding for the protective cable covers for LV cables may be of earthenware. The RCC covers shall have one hole at each end, to tie them to each other with GI wires to prevent displacement. The trench is then backfilled with the excavated soil and well-rammed in successive layer of not more than 300 mm in depth, with the trenches being watered to improve consolidation wherever necessary. To allow for subsidence, it is advisable to allow a crown of earth not less than 50 mm in the centre and tapering towards the sides of the trench.

l) Each cable shall be pulled into the particular conduit and shall be taken from the particular reel designated for the run. All cables shall be neatly trained without interlocking. In hand holes, pull boxes or junction boxes having any dimension over 1000 mm, all conductors shall be cabled and/or racked in an approved manner. Care shall be taken to avoid sharp bending or kinking conductors, damaging insulation or stressing cable beyond manufacturer’s recommendations in pulling. Cable shall be protected at all times from mechanical injury and from absorption of moisture at unprotected ends.

m) In each cable run some extra length shall be kept at a suitable point to enable one or two straight through joints to be made, should the cable develop a fault at a latter date.

n) Cables on cable racks, on cable trays and conduits shall be formed to avoid bearing against edges or trays, racks, conduits or their supports upon entering or leaving trays, racks or conduits. Cables shall be racked or laid directly into cantilevered cable trays where practicable, but in some cases it may be necessary that cables are pulled or threaded into trays. To facilitate visual tracing, cables in trays shall be laid only in single layers and unnecessary crossing of cables shall be avoided. Cables on trays shall finally be clamped in an approved manner.

o) Cables splices will not be permitted except where permitted by the Engineer's Representative. Splices shall be made by Bidder for each type of wire or cable in accordance with the instructions issued by cable manufacturers and the Engineer's Representative. Before splicing insulated cables shall have conductor insulation stepped and bound or pencilled for recommended distance back from splices to provide a long leakage path. After splicing, insulation equal to that on the spliced conductors shall be applied at each splice.

p) At cable terminal points where the conductor and cable insulation will be terminated, terminations shall be made in a neat, workmanlike and approved manner by men specialized in this class of work. Terminations shall be made by the Bidder for each type of wire or cable in accordance with instructions issued by cable manufacturer’s and the Engineer's Representative.

q) Control cable termination shall be made in accordance with wiring diagrams using colour codes established by the Engineer's Representative for the various control circuit, by code marked wiring diagram.

Page 373: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

158 of 267

r) When control cables are to be fanned out and cabled together with cord, the Bidder shall make connections to terminal blocks and test the equipment for proper operation before cables are corded together. If there is any question as to the proper connection, the Bidder shall make a temporary connection with sufficient length of cable so that the cable can be switched to another terminal without splicing. After correct connections are established through operating the equipment, cables shall be cut to their correct lengths, connected to terminals in the specified manner, and corded together where necessary to hold them in place in a workmanlike manner.

s) Cable seals shall be examined to ascertain if they are intact and that cable ends are not damaged. If the seals are found to be broken the cable ends shall not be jointed until after due examination and testing by the Engineer's Representative.

u) After installation and alignment of motors, the Bidder shall complete the conduit installation, including a section of flexible conduit between motor terminal box and trench/tray. The Bidder shall install and connect the power, control and heater supply cables as per equipment manufacturer’s drawings, if any. The Bidder shall be responsible for correct phasing of the motor power connection and shall interchange connections at the motor terminal box if necessary, after each motor is test run.

v) Connections to recording instruments, float switches, level electrodes, limit switches, pressure switches, thermocouples, thermostats and other miscellaneous equipment shall be done as per manufacturer’s drawings and instructions.

w) Metal sheath and armour of the cable shall be bonded to the earthing system of the station.The size of conductor for bonding shall be appropriate with the system fault current.

x) All new cables shall be megger tested before termination. After termination, all L.V. cables shall be megger tested. 1100/650 volt grade cables shall be tested by 1000 volt megger.

y) Cable shall be tested in accordance with IS 7098.Bidder shall furnish all testing kit and instrument required for field-testing

z) Bidder shall ensure to use calibrated test equipment having valid calibration test certificates from standard laboratories traceable to National Standards.

Every cable shall be installed in a single length without joints.

Double compression cable gland shall be used to terminate each end of every armoured cable conforming to IS 4218. The cable gland for every cable rated up to 1100 V shall be constructed from brass.

Every cable shall be identified at each end, in line with the cable schedule.

Cable laying shall be initiated only after approval of entire cable route.

Page 374: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

159 of 267

Cable Support Systems

Trays for Power Cables:

Ladder type cable trays shall be used for power cables. Material of construction shall be of hot dip galvanized steel .

Minimum thickness of all ladder type cable trays shall be 2 mm for trays up to 300 mm width, thickness shall not less than 2.5mm for trays above 300mm up to 600mm.Height of all power cable trays shall be minimum 100mm

Cables External to Buildings and Structures

Cables external to buildings and structures shall be installed underground through suitable sized uPVC conduits , concrete ducts or shall be directly buried .

Where cables passes below internal or external roads or areas of hard standing, cables shall be laid through concrete ducts. Cable concrete duct systems shall incorporate suitably located draw-pits/inspection chambers/pull boxes whenever there is change in direction of route of the cable. Cables crossing below the walls or structures shall be laid through uPVC conduits.

Minimum 30% space inside uPVC conduits and concrete ducts shall be kept for future expansion. The minimum depth LV cable installation shall be 700 mm.

Cable trays and supports shall be in accordance with IEC 61537.

Cable tray supports shall provide adequate strength with minimum rigid support to the fully laden cable tray along its entire length.

All cable trays inside the control room and out of the trench shall be closed.

A maximum of two layers of cable shall be installed on any tray.

All cable trays shall be supported to prevent sagging.

Metallic Conduit:

All outdoor black stove conduits shall be of rigid galvanized steel, unless otherwise specified. Galvanization process shall go from three stages: Surface Preparation, Galvanizing and Inspection. All metallic conduits shall be as per IS 9537(Part –II)

Non-Metallic Conduit:

All exposed indoor conduits, underground, concealed or concrete embedded conduits shall be uPVC unless otherwise specified on drawing. Conduits in classified areas shall be of uPVC material as per latest Indian Standard.

Page 375: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

160 of 267

Conduits shall be round in shape with different mechanical strength as per area requirement i.e. low mechanical strength for indoor conduit installation and high mechanical strength for outdoor and buried application.

Conduit shall be durable and impact resistant as per IS 9537 and IS 14927.

Conduit shall be fire retardant and corrosion resistant as per IS 9537.

Conduit shall have negligible water absorption.

Corrugated Flexible Conduit:

uPVC corrugated flexible conduits shall be manufactured as per IS 9537 ideally suited for electrical wiring and cable protection.

Use liquid tight flexible uPVC conduit for termination at Junction boxes, Local control stations (LCS), termination to motors, field instrumentation and process equipment unless otherwise specified.

Conduit Fittings:

Fittings, as required, for use with conduit specified, with coating and colour same as conduit shall be provided.

All conduit fittings and covers shall be weatherproof and watertight as per Indian standard 3419, unless otherwise noted.

Conduit Fastenings:

Use uPVC straps for uPVC conduits and steel straps for galvanized steel / galvanized iron conduits.

Channel type supports shall be provided for two or more conduits.

All surface installation horizontal runs of conduits should be secured at maximum distance of 0.9 meters and vertical runs of conduits should be secured at maximum distance of 1.2 meters.

Fastening should be properly tightened to restrict thermal movement of conduit.

Expansion Fittings or couplers:

Appropriate water tight expansion sleeves with bonding where conduit crosses a structural expansion joint or to accommodate for thermal movement due to temperature change on surface installations, complete with grounding strap and clamps shall be provided.

Expansion couplers shall be installed with a short side coated with solvent cement and coupler pushed firmly over the conduit down the nib. The slip side coated with silicon grease receives the conduit to a midpoint to the nib. This will then permit for expansion or contraction providing the conduit is free to move in the saddle.

Outlet and Conduit Boxes:

Page 376: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

161 of 267

Outlet boxes shall be sized in accordance with IS 3419.

Appropriate Switch boxes shall be provided where wiring devices such as switches, fan regulators etc. are grouped.

Blank cover plates shall be provided for boxes without wiring devices.

Where outlet boxes are used for more than one system appropriate combination of barriers shall be provided.

Outlet boxes made from uPVC or galvanized steel and shall be suitable for mounting/fixing on masonry and/or concrete construction and shall be flush mounted or surface mounted as per site requirement.

All fittings, boxes and covers, in below grade areas, shall be weatherproof conforming to relevant IS unless otherwise noted.

Outlet boxes, conduit boxes and fittings for hazardous locations shall be as per IS 5571.

uPVC and galvanized steel boxes with fittings (bends elbows, tees crosses etc) for surface wiring of switches and receptacles.

Hazardous Areas:

For hazardous areas, provide epoxy coated rigid galvanized steel conduit, conduit fittings, compound, etc., to conform to the code requirements for the specific type of hazardous i.e. Zone 1. All boxes, fittings and joints shall be threaded for connection to conduit terminations and shall be explosion proof. Threaded joints shall be made up with at least five threads fully engaged.For flexible connections at motor terminals, provide liquid tight flexible conduit and fittings approved for Zone 1 locations. Conduit, conduit fastener and conduit fittings shall be of rigid galvanized steel as manufactured by recognized manufacturers.

Markers:

300 mm wide polyethylene Cable Marker Tape, Red in colour with the following imprinted continuously over its entire length: “DANGER-“sign of Scull & Bones” BURIED ELECTRIC CABLE BELOW”.

The Cable route marker post in circular in shape made up of hot dip galvanized steel of approximate diameter 100 mm and thickness not less than 4 mm. shall be used for cable route indication. The inscription shall indicate the presence of a cable below, the depth and voltage rating.

Sealing Compound:

Page 377: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

162 of 267

Conduit fitting shall be installed in the system using solvent cement for restriction of water in it and silicon grease where installation is subject to frequent changes.

PVC solvent cement shall be used as a method of joining uPVC conduit into fitting like couplings, adaptors, bends and boxes, especially formulated for watertight joint.

LV switchgear

The switchgear shall be designed and manufactured in accordance with IS 13947 and IEC 60947.

The Motor Control Centre (MCC) shall be intelligent. A MCC is considered ‘intelligent’ when the MCC utilises intelligent components, such as overload relays, starters, controller and functional units are interconnected via fieldbus systems.

The MCC shall be designed using Form 4 separation and shall contain, at the minimum, the following items:

Main Incomer

Feeders including 20% spare feeders.

Plant end equipment starters

The MCC shall have bottom cable entry with front access only.

The MCC Main Incomer protective device shall be rated to ensure discrimination with all upstream and downstream protective devices.

The MCC shall be provided with an earth bar and shall form the main earth terminal for the installation.

The MCC shall be fitted with thermostatically controlled anti-condensation heaters where required.

Provision of communication with each feeder with PLC shall be provided.

MCC incomer shall be MCCB for rating up to 630A. For rating above 630A, ACB shall be preferable.

PCC / MCC

Unless otherwise specified, every 415 V motor control centre (MCC) shall be of the floor-standing multi-compartment type complying with IS 13947 and IEC 60947.

The overall enclosure of the MCC shall be to IP54 for indoor use.

Page 378: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

163 of 267

Except for any with drawable circuit breaker, busbar and cabling alley, a hinged door shall be provided for each compartment of the MCC. The door shall be interlocked with any switch-fuse or MCCB/MPCB fitted in the compartment and intended as a means of isolation for the circuits inside the compartment so that the door can only be opened when the switch-fuse or MCCB/MPCB is in the ‘Off’ position.

Every motor starter and other functional unit shall be installed in a dedicated compartment.

Except for with drawable air or moulded case circuit breakers, every motor starter and other functional unit shall be of the ‘fixed’ or ‘swing-out’ type, where:

‘fixed’ means that, except for those components which must be mounted on the compartment door, the starter or other functional unit is fixed within the compartment

‘swing out’ means that, except for those components which must be mounted on the compartment door and any components fixed within the compartment, the starter or other functional unit is mounted on a hinged panel which can ‘swing out’ when the compartment door is open. ‘Swing-out’ units will only be acceptable for starters, rated equal to or less than 7.5 kW.

Except for the compartment doors, all removable covers, the removal of which gives access to live electrical circuits shall be fixed by means of bolts.

Switches and indicating meters such as ammeters, voltmeters, etc shall not be positioned above 1800 mm or below 300 mm. Devices for isolation and switching shall be accessible within the zone 300 mm to 1800 mm above floor level.

Every fuse in the power circuit shall be of the HRC type unless otherwise stated.

Wiring inside the MCC shall incorporate copper conductors, the minimum acceptable cross-sectional area being 2.5 mm2 for power circuits and 1.5 mm2 for control and monitoring circuits. Wiring for power circuits shall be phase colour identified throughout in accordance with IS 732. Alphanumeric identification ferrules shall be fitted to each end of each wire forming part of a control and monitoring circuit. Each ferrule shall completely encircle the wire. The identification of each wire shall be unique and shall correspond to that shown on the manufacturer’s schematic and wiring diagrams.

Busbar The cable connections from the busbars to the functional units shall be kept as short as practicable and shall be sized, routed and supported to minimise the risk of a fault.

It shall be necessary to use tools to remove the covers from the busbar system compartment. Each removable cover shall bear a warning label engraved on it.

Page 379: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

164 of 267

Wherever a voltmeter, kW, kWh, kVA, kVAh or similar meter is fed directly from the busbar system or from the cable side of an air circuit breaker, it shall be protected by MCB or fuses.

Distribution board

All the switch Boards, Panels shall be neatly wired using 1100/660V PVC insulated stranded copper cable of minimum 2.5 sq.mm. Copper Bus Bars also may be provided to suit the requirements.

Each wire shall be identified at both ends with cable marker.

Distribution Boards shall be housed in metal clad case or board conforming IS 4237. The Sub-distribution Boards (SDB) shall be equipped with rigidly fixed miniature circuit breaker complying IS 8828 in the phase leads with over load and short circuit protection. The MCB’s shall have adequately sized terminals for the outgoing leads. The distribution boards shall have adequately rated phase and neutral bus bars of high conductivity copper. Earth the bus bar with the necessary number of terminals for connecting the earth continuity conductors.

Each SDB shall have schematic diagram or single line diagram pasted or permanently fixed inside the cover stating the details of circuit incomer and rating of MCB. Non-flammable insulating shields shall be provided to prevent fire hazards during operation of MCBs. The SDB shall not be mounted at a height exceeding 1800 mm from ground level.

Main Distribution Boards shall be wall mounted. Main Distribution Boards shall be erected in each switching room, and sub-distribution boards shall be located according to the distribution of load and the equipments to be connected and its location.

Each lighting distribution board (LDB) Incomer shall be provided with ELCB. Each outgoing feeder of LDB shall be provided with MCB. Power distribution board shall be provided to cater window/split/cassette type air-conditioning load and auxiliary load (e.g. welding, drill machine, Grinder, EPABX etc.)

Spare compartment

Minimum 20% of spare feeders shall be provided in each MCC panel. Each spare compartment shall be equipped to the extent that would enable it to be converted into a direct on line starter/star delta/soft starter at a later date without having to de-energise the busbars or shutdown any other circuit.

Local push button station

Construction features

Page 380: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

165 of 267

The constructional features of the local push button stations shall be as follows :

a) Metal enclosed, weather proof, suitable for mounting on wall or steel structures. The enclosure shall be die cast aluminium or sheet metal of 2 mm thickness.

b) Outdoor type push buttons shall be completely weather, dust and vermin proof and shall be provided with cannopy. Degree of protection shall be IP:55.

c) Metal parts shall be given tropicalising treatment as per standards and painted with one coat of epoxy primer and two coats of light grey epoxy paint.

d) Provided with inscription plates of rear engraved with white letters on black background. The letter size shall be 6 mm.

e) Provided with two earthing terminals suitable for 14 SWG G.I. wire.

f) Provided with removable undrilled gland plate and cable glands for appropriate sizes of cable. The cable entry shall be from the bottom.

g) Push button contacts shall be designed for extra robust both mechanical and electrical operation. High quality material shall be used in their construction to ensure mechanical life exceeding 10 million switching operations. The contact shall be of silver alloy of 10 A continuous current rating.

Push buttons

a) All push buttons shall be :

i) Fitted with two (2) normally open and two (2) normally closed contacts rated to carry and break 6 Amps at 415 Volts (10 A at 240 V AC)

ii) Provide integral escutcheon plates marked with its function.

b) The open/close/start push buttons shall be of the momentary contact push to actuate type and shall be green in colour.

c) The stop push buttons shall be stay put type with mushroom knob and shall be red in colour.

Type of Push Button Stations

The following types of push button stations shall be supplied ;

i) Push button station type A - Each P.B. station suitable for indoor installation and shall comprise two push buttons viz. ‘START’ and ‘STOP’ for control of non-reversible motors.

ii) Push button station type B - Each P.B. station for indoor installation and shall comprise of three push buttons viz. ‘OPEN’ ‘CLOSE’ and ‘STOP’ for control of reversible motor.

Page 381: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

166 of 267

Earthing conductor

A suitably sized tinned copper earth-bar shall be provided in an accessible location inside and along the length of the motor control centre. If the MCC is to suit bottom-entry cables, the earth-bar shall be at the bottom of the MCC. If the MCC is to suit top-entry cables, the earth-bar shall be at the top of the MCC.

Air Circuit Breaker(ACB)

Air circuit breakers shall be utilised for rated current equal to or greater than 630 ampere. Where air circuit breakers are specified, the operating mechanism of each air circuit breaker shall have mechanical `ON' and `OFF' indicators and a manual trip device fitted with means for locking. Hand charged and motor charged spring mechanisms shall have mechanical indicators to show `SPRINGS CHARGED' and `SPRINGS DISCHARGED'.

Operating mechanisms of the hand charged and motor charged spring types shall be arranged so that release of the springs to close the circuit breaker can only be achieved by a deliberate action. It shall not be possible for vibration or mechanical shocks to release the charged springs. ‘Motor charged spring mechanisms’ shall be arranged so that charging is initiated automatically following a discharge, and the necessary limit stops and switches for the automatic control of the charge once initiated, shall form an integral part of the mechanism. It shall be possible to hand charge a ‘motor charged spring mechanism’ in an emergency.

Spring operated mechanisms shall be provided with volt-free contacts to give indication that the springs are charged.

The closing solenoids of d. c. solenoid operated mechanisms shall be suitable for operation at a minimum of 80% of the nominal supply voltage and shall not malfunction or cause excessive vibration when energised at 120% of the nominal supply voltage.

To facilitate maintenance and adjustment of contacts, it shall be possible to ‘slow-close’ the circuit breaker. This operation shall only be possible in the fully withdrawn position. Any necessary operating handle, lever or tube shall be supplied.

Each circuit breaker shall be ‘trip free’ and be provided with the following mechanical interlocks:

It shall not be possible to withdraw or to replace the circuit breaker from the ‘service’ position unless the breaker is open.

It shall not be possible to attempt to close the breaker unless the closing springs are fully charged.

It shall not be possible to remove the circuit breaker from its fixed cassette without manually overriding a catch.

Page 382: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

167 of 267

Each circuit breaker shall be versatile enough so as to accommodate rating plug.

Each circuit breaker shall have mechanical indicator to display the deterioration status of the contacts.

Moulded case circuit breaker (MCCB)

Moulded Case Circuit Breaker(MCCB) shall be a circuit breaking device which can make, withstand and break current whose intensity is atmost equal to its nominal current and protection device which can automatically break overcurrent which may occurs as a result of fault in the installation.

The terminals and connections between all current carrying parts shall be designed to assure permanently low resistance connections.

MCCB shall have rated operational voltage of 415V, 50Hz power supply system.

MCCB shall have minimum fixed symmetrical interrupting capacity i.e. ICS=50% ICU and variable overload capacity.

MCCB shall have at least 2 Numbers each NC and NO spare auxiliary contacts as required.

MCCB shall conform to the latest application of standard IS 13947-2.

MCCB shall have minimum power loss as defined by the standard IS 13947.

MCCB shall be current limiting type with let through energy limit as specified in IS/IEC 60947.

MCCB housing shall be heat resistant and having high impact strength.

MCCB shall have under voltage release feature

All incomer MCCB shall be microprocessor based with adjustable overload (40% to 100%), short circuit (2 to 10 IN) and earth fault protection (10 to 50%) and shall have RS 485 communication compatibility. All Incomer MCCB shall be provided with rotary handle. All other MCCBs will be thermal magnetic type with earth fault protection.

MCCB terminals shall be protected against finger contact to IP 2X degree of Ingress Protection to provide total safety to the operating personnel.

Considering MCC panel, “3Pole + Neutral” MCCB’s will be used as a main incomer and for power distribution and 3Pole MCCB will be used for outgoing for each motor load. Also ‘3Pole + Neutral’ MCCB/MCB with ELCB will be used as an incomer to lighting DB.

MCCB Operating mechanism shall be quick- make, quick-break and trip-free type. The ‘ON’, ‘OFF’ and ‘TRIP’ positions of the MCCB shall be clearly indicated and visible to the Bidder when mounted as in service.

MCCBs shall be capable of withstanding the thermal stresses caused by overloads and locked rotor currents of values associated with protective relays settings of the motor starting equipment and the mechanical stress caused by the peak short-circuit current of value associated with the

Page 383: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

168 of 267

switchgear rating. The maximum tripping time under short circuit shall not exceed 20 milliseconds.

MCCB terminals shall be suitable for accepting spreader links to receive cable lugs for cable sizes relevant to circuit ratings. Phase barriers should be provided for isolation of the poles.

Clearly-labelled isolating circuit breakers shall be provided for each incoming power supply. Switches shall be spring loaded contacts that close fully without requiring full operation of the handle. The handle and cover shall be interlocked so that the handle cannot be operated when the cover is open and the cover cannot be opened unless the switch is in the ‘off’ position. The ‘on’ and ‘off’ positions of each switch shall be indicated clearly.

Miniature Circuit Breaker (MCB)

MCBs required shall be of single-pole or three pole (with or without neutral) types.

The rated voltage for single pole and three pole (with or without neutral) shall be 240 V & 415 V, 50 Hz frequency respectively.

All Single pole and three pole (with or without neutral) MCBs shall be suitable for 6 or 10 KA as per IS: 8828.The procedure for making the Short Circuit test and the test circuit etc. shall be in accordance with the IS: 8828.

Time-Current Characteristics:

The MCB shall have a fixed, unadjustable time Vs current characteristics. The same shall be prepared in accordance with IS:8828 and the manufacturer shall submit the copies of these curves.

Under voltage release and shunt-trip release coil are not required in these MCBs. Only overload release and Short Circuit release should be provided. Tripping time of MCBs shall be as per IS:8828. Reference calibration Temperature for this purpose shall be 45 degree Celsius.

MCBs shall be capable of carrying out a given number of operation cycles as per IS: 8828.

Temperature rise of various parts of circuit-breakers measured during the test carried out under the conditions specified in IS:8828 shall not exceed the limit.

Design & Constructions of MCB:

Materials shall be suitable for the particular application and capable of passing the appropriate tests. The MCBs shall have trip free operating mechanism.

The metallic portions of the mechanisms shall be either inherently resistant to, or so treated as to make them resistant to atmospheric corrosion. The terminal screws used shall be of brass or non-magnetic stainless steel.

Each MCB to be supplied in accordance with this specification shall bear markings as per IS:8828.

The mechanism shall be fitted with an automatic release which shall at all times function independently of the means used to close the circuit breaker.

Page 384: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

169 of 267

Circuit breakers shall be arranged for manual closing and opening and for automatic tripping on over current/short circuit.

The operating mechanism case shall be effectively sealed by the manufacturer to prevent access to the mechanism. The case shall be of insulating material and shall be designed to withstand reasonably rough usage without fracture or permanent distortion.

Ventilating outlets from circuit breakers shall be so situated that a discharge of gases or hot air from arc chambers, when provided in air circuit breaker, will not cause electrical breakdown and shall be directed away from any place where an Bidder may have to be in the course of his ordinary duties. The construction shall be such that gas cannot collect at any point where ignition can be caused during or after operation by sparks arising from normal operation of a circuit-breaker or its ancillary equipment.

Terminals:

The MCB shall be with stirrup type terminals as per IS:8828 and shall be such that live parts are not accessible. Live part cannot be touched by the test finger of design shown in IS:8828. The terminals shall be of substantial mechanical construction and shall provide adequate electrical contact for 16 Sq.mm. size of Aluminum / Copper cable to be used.

Terminals shall be such that they cannot turn or be displaced when the connecting screws are tightened and such that the conductor cannot become displaced/loose.

Terminal connectors shall be such that the conductors may be connected perfectly so as to ensure that the necessary contact pressure is maintained permanently on connected cable.

Terminals shall be so mounted that the appropriate wire or cable may be connected without impairing the normal performance of the unit. No contact pressure shall be transmitted through insulating material and the gripping of the conductor shall take place between metal faces.

The terminals shall be clearly and indelibly marked for those circuit breakers which require distinction between the supply Side and the load side and/or between phases and neutral.

Instrument Transformers

Potential Transformers:

Potential transformers shall conform to IS 3156 and IEC 186, dry type for indoor use, with following characteristics:

Nominal voltage : 415 V.

Rated frequency: 50 Hz.

Voltage ratio: as per control circuit requirement.

Potential transformer shall be equipped with fuse holder and fuses.

Current Transformers:

Page 385: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

170 of 267

Current transformers(CT) shall conform to IS 2705, IEC 60044-1, dry type for indoor use complying with following characteristics:

The CTs shall be of solid core with round window type with accuracy 0.2% for consumer check metering.

The secondary leads shall be terminated with tinned Cooper rose contact terminals with arrangements for sealing purposes.

Polarity (both for primary and second leads) shall be marked.

The CTs shall be varnished, fiberglass tape insulated or cast resin, air-cooled type. Only super enameled electrolytic grade copper wires shall be used.

The CTs shall have marking and nameplate as per IS 2705 in addition to class of insulation & ISF. The markings shall be indellible. The nameplate shall be securely fixed to the body of the CT and contain following data

Nominal voltage class: 415V.

Rated frequency: 50 Hz.

Rated primary current: as indicated in approved SLD or as per feeder requirement.

Secondary Ampere rating of CT shall be

5A – where CT and metering /protection units are in same panel.

1A -where CT and metering /protection units are in different panel.

Short-time dynamic current rating, 2.5 times the rated short-time thermal current rating.

Short-time thermal current rating shall be 100 times primary rating.

Metering and Switchboards Instruments

Indicating Instrument and Meters:

Measuring instrument i.e. ammeter, mounted on each cubicle of control panel except on incomer feeder, shall be digital. Measuring instruments (i.e. voltmeter, ammeter) mounted on incomer side of each MCC shall be moving iron analog type. Digital energy meter for measuring total wattage, power factor with all electrical parameter shall be provided at incomer side of PMCC.

Analog Indicating Instruments

Electrical indicating instruments shall be of 96 mm square. Taut band type of instruments is preferred. Taut band moving iron instruments for use on a-c systems shall incorporate built-in transducers.

Instruments dials shall be white with black numbers and lettering.

Page 386: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

171 of 267

Normal maximum meter reading shall of the order of 60% normal full scale deflection. Ammeters for motor feeders shall have suppressed scale to show current from full load up to seven times the full load current.

Instruments shall have an maximum accuracy of +/- 1.5 % of full scale unless otherwise specified.

Analog Instruments shall be as per standard IS 1248, IEC 60051

Digital Indicating Instruments

Digital Indicating Instruments shall be of 96mm square

For digital meters, display shall be red colour LED.

All digital meters (ammeter, voltmeter) will be of 3 1/2 digits display.

Accuracy class shall be Class 1.0 unless otherwise specified.

Auxiliary Supply shall be 230V AC.

Digital Meter shall conform to IS 13875 and IEC 61010.

Type test report from NABL/ERTL or NABL accredited lab shall be provided.

Digital Energy Meter (Multifunctional Meter):

General Requirements

The meter shall be suitable for operation in 3 - phase networks, balanced as well as unbalanced load, four quadrant metering.

It shall be possible to use the multifunction meter directly in 415V (L-L) networks.

The current primary inputs shall be configurable at site in steps for measuring x / 5 A or 1 A current transformers through front buttons.

The multifunction meters shall be suitable for operation up to 45 Degree Celsius.

The meters shall be work on 230V AC power supply.

The multifunction meters shall have degree of protection against ingress of dust & water.

The multifunction meters shall have backlit LCD/LED display with adjustable contrast.

The meter shall be tamper-proof (password protected) to avoid mishandling by unauthorized person.

Accuracy of meter shall be 0.5 unless otherwise specified.

It shall conform to IS14697, IS13779, IEC62052, IEC 62053.

Page 387: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

172 of 267

Measured Values requirement

All metered values will be in "true RMS" values. The monitor shall include a keypad allowing for the viewing of different selected values. The monitor shall display the following values

Voltages Phase-phase / phase-neutral

Currents Per phase / neutral

Apparent, active and reactive power Three phase total

Power factor Individual phase and total average

Frequency 50 Hz +/- 5%

Minimum / maximum values a) Voltage - phase-phase b) Line current c) Active, Reactive and Apparent Power d) Power factor e) Frequency

Active energy Import/ export

Reactive energy Import/ export

Energy demand per measuring period

Three phase average rating for active and reactive power: 30 min.

Minimum / maximum rating values within the measuring period

Shall be possible to be measured

Measurement Accuracy

The meter shall have at least 3 pulse Input and 2 volt free pulse output as standard

The meter shall have LED output configurable for active, reactive and apparent energy for testing of accuracy

Communication

The meters shall have inbuilt RS485.

Indicating Lamps:

Indicating lamps shall be of the LED type, with low watt consumption. Indicating lamp shall be of the double contact, glass lens cap type rated for operation for either a 230 V a-c voltage. Indicating lamps shall be provided with series resistances to avoid short circuiting of control supplies in the event of fusing of the LED. Lamps shall be provided with translucent lamp covers.

Bulbs and lenses shall be interchangeable and easily replaceable from the front.

Page 388: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

173 of 267

Push Buttons: Illuminated type, momentary action, flush type pushbuttons shall be provided. It shall be sealed to at least IP54. Push button colors will be Green for Start and Red for Stop. Contact shall be silver plated. Operating voltage of push button will be 230VAC. “Start” and “Stop” push buttons shall be provided for non-reversible motors. Mechanical life of push button shall be minimum 1, 00,000 cycles. Operating temperature of push button is 45oC. Fuses: For short circuit protection, Semiconductor fuses shall be used for soft starter operated motors. HRC Fuses of suitable characteristics shall be provided for feeders unless otherwise specified. Control Switches: Positions labeled, heavy-duty Bidders standard, multiple contacts rated 230V, 5A, AC. For Mode Selectors use make before break contacts. The selector switches shall be “bump-less”.

Motor Starter Each motor starter shall incorporate the following features in addition to complying with the requirements specified elsewhere in the specification. A suitably rated 3-phase & neutral (four pole) MCCB as a means of isolating the starter from the busbars and to provide short-circuit protection. A facility shall be provided to enable the MCCB to be padlocked in the ‘Off’ position only. Where any control or monitoring circuit inside the starter compartment operates at a voltage in excess of 24 V d.c. and is energised from outside the starter compartment, both poles of the circuit shall enter the starter compartment via miniature circuit breaker (MCB) so that the circuit inside the starter is isolated when the MCB is open. An isolating transformer shall be provided to feed the control and monitoring circuit. The primary of the transformer shall be fed from one phase and the neutral; the phase connection shall be protected by fuse. The output from the secondary shall be 110V/ 240 V. One pole of the transformer secondary shall be earthed and a fuse shall be fitted in the other pole. An earthed metallic screen shall be provided between the transformer primary and secondary windings. A ‘test’ switch to enable the control and monitoring circuit to be tested while the main circuit feeding the motor is isolated. The ‘test’ switch shall only be accessible when the starter compartment door is open. The switch shall take the form of a pushbutton which has to be pulled out to select the ‘test’ position and pressed in to select the ‘normal’ position. The ‘test’ button shall be located in the compartment so that the starter cannot remain in the ‘test’ mode when the compartment door is shut. An ammeter shall be provided to measure the line current drawn by the motor. The ammeter shall be connected on the compartment door with help of Ammeter selector switch. The ammeter shall have an extended range to suit the motor locked rotor current and an adjustable red pointer which can be used to indicate the motor full load current. Following Relay Protection shall be provided

Page 389: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

174 of 267

A ‘Run’ relay, the coil of which shall be rated at energised from the relevant control and instrumentation compartment An ‘Available’ relay An ‘Inhibit’ relay, where appropriate One or more ‘Trip’ relays, where appropriate A ‘Local switch-disconnector closed’ relay, where appropriate. This relay shall only be energised when the switch-disconnector local to the pump is closed. An overload and single phasing protection device A motor over-temperature protection device to suit the thermistors or thermostat fitted in the motor Other drive protection relays, as appropriate The following control devices mounted on the starter door: A Red ‘Start’ pushbutton A Green ‘Stop’ pushbutton A Yellow ‘Lamp test’ button The following indicator lamps mounted on the starter door: A Red lamp for pump ‘Stopped’ A green lamp for pump ‘Running’ An amber lamp for ‘Fault Motor Starting In selecting the appropriate type of fixed speed starter for a motor, account shall be taken of the following factors: The torque/speed curves of the driven equipment and of the motor The calculated frequency of starting each motor and the starts/hour for which the motor is suitable Voltage regulation The motor starter shall be one of the following types: Direct-on-line Star-delta Soft start Variable frequency drive Of these, direct-on-line starters shall be provided wherever the voltage regulation which results is within the specified limits. DOL starter shall be used for the motor rating up to 7.5kW For the motor rating above 7.5 kW, star delta starter shall be utilized If soft-start units shall be provided for motor rating above 55 kW, the appropriate characteristics (e.g. ‘voltage ramp’, ‘pump start’ and possibly ‘soft stop’) shall be determined. Variable frequency drive (VFD) shall be used where speed variation is essential or can be done by keeping process requirement unchanged. Selection of proper VFD shall be done to save the energy.

Page 390: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

175 of 267

Electric Motor Matching to Driven Equipment The kW rating of each electric motor shall greater than 10% of the power absorbed by the drive at the duty point. For motors to be operated by variable frequency drives (VFD), the kW rating to be used in this computation shall be the nominal kW rating of the motor derated as required, to allow for diminished cooling and increased losses .The torque/speed characteristic of each motor shall be adequate to accelerate the drive to the required operating speed in an acceptable time. Frequency of Starting The Bidder shall calculate the maximum number of starts per hour which could occur for each drive under automatic control. Each motor shall be suitable for the calculated maximum number of hot/cold starts per hour. ‘Energy Efficient’ Motors All motors shall comply with IS 325. All motor shall be of EFF1 class as per IS 12615. Motors to be installed in classified areas shall conform to the requirements of IS: 5571. Motors for Use in Variable Frequency Drive Systems Every motor which is to be fed from a frequency converter (variable frequency drive) shall be suitable for continuous operation at any speed within the specified speed range and with the harmonics generated by the frequency converter. Enhanced cooling and design of the motor windings shall be provided where necessary to meet this requirement. Anti-Condensation Heaters Except for the motors in submersible pumps, submersible mixers and submersible propellers, an anti-condensation heater shall be fitted to every motor located in areas where condensation on the motor may occur (e.g. damp, unheated room). Anti-condensation heaters shall be sized to raise the temperature inside the motor several degrees above the dew point temperature. The heater surface temperature shall not exceed 200°C. A warning label, black letters on a yellow background shall be fitted to the relevant terminal box to indicate that the heater may be energised while motor is de-energised. Heater terminals shall be shrouded. On larger motor, a separate terminal box shall be provided. Over-Temperature Protection The protective over-temperature device shall be in close thermal contact with each phase of the stator windings. For upper and lower bearing also over temperature protection shall be provided. These shall be provided for every motor which satisfies any of the following criteria: It is operated as a variable speed drive. It is subject to onerous operating conditions such as a high maximum number of starts per hour or a long run-up time. It is installed in a potentially hazardous area. Motor rating equal to or greater than 22kW.

Page 391: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

176 of 267

For submersible pump motors, thermostatic devices will be an acceptable type of over-temperature sensor. Otherwise, each over-temperature sensor shall be a thermistor. All thermistors shall be connected together to provide a single electrical circuit for connection to an external relay which will be capable of tripping the motor. Overload Protection Electric motors having a rating equal to or greater than 0.37 kW shall be provided with control equipment incorporating overload protection of the motor. Cable Termination Facilities Wherever a motor forms part of a submersible machine, it shall be supplied complete with a factory-fitted cables and IP 68 terminal box. These cables shall be long enough to permit termination in a conveniently located junction box and shall, in any event, be not less than 15 metres long. For every other motor, cable termination boxes shall be provided and be suitable for air termination of cables. They shall be sealed with a neoprene gasket to provide dust and weather protection. Each box for the termination of power cables shall be the largest ‘standard’ box which the motor manufacturer can offer for the motor frame size concerned. Cable termination boxes for phase-to-phase voltages in excess of 1000 V shall be treated with anti-tracking varnish. Other Requirements Every electric motor rated at 0.37 kW or more shall be three phase squirrel cage induction type and type of duty shall be as per process requirement. The type of duty shall conform to IS 12824. Any motor rated under 0.37 kW shall be of the same type or shall be a single phase motor if this is more appropriate. All motors excluding motors for submersible application shall be Totally Enclosed Fan Cooled (TEFC) type. Motor bearings shall be provided with facilities to add additional lubricant. For grease lubricated bearings grease nipples shall be provided and a grease relief feature incorporated. Oil lubricated bearings shall be provided with sight glasses which provide an accurate indication of bearing oil level when the motor is in use. Unless otherwise specified, motors shall be provided with class ‘F’ insulation, the permissible temperature rise above the specified ambient temperature shall be limited to that specified in the applicable Indian standards for class ‘B’ insulation. The Motor shall conform to IS 12065 for limits of noise levels and shall conform IS 12075 for vibration severity limit.

Capacitor bank Capacitor bank shall comprise of three identical single phase capacitors kept inside the Aluminum can. The capacitors shall be cylindrical/ box type in design.

Page 392: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

177 of 267

The capacitor unit shall follow three phase Delta connection. The capacitor technology shall have double side metalized paper + polypropylene film as core component. The unit shall be impregnated in the vacuum environment with Non-PCB Oil as the impregnate. For safety purpose, capacitor units shall be factory fitted with Discharge resistors, with standard discharge time to 50volts or less in 60 seconds. The capacitor units shall have Self-healing feature as the protection. For external protection, it shall be provided with PSD (Pressure sensitive Disconnector). The capacitor shall have bushing terminals designed for large cable termination and direct bus bar mounting for banking. The capacitors shall be provided with fuses. It shall be possible to identify the blown off fuse from outside. The tolerance and degree of unbalances shall be as per the relevant IS. The capacitors shall be designed with MD-XL technology. The MD-XL technology is classified separately since it is the only technology which is capable of giving the longest life, highest over load limits and the highest operating ambient temperature. It is also suitable to use in high harmonic environment. The capacitor shall comply with Acceptance test, Type test and Routine test classified under IS 13340 and IS 13341. Performance: Permissible overload: The unit shall be able to withstand the Overcurrent up to 2.5 x Is. The maximum permissible overloads with regard to voltage, current and reactive output shall conform to relevant IS. Transient free switching: It is important to ensure that all the capacitors installed are switched in a transient free manner so as to ensure reliable performance of the installation. Resonance: It is essential to avoid the risk of resonance; safer combination of capacitor + filter reactor shall be selected for high voltage application to ensure reliable power factor improvement. APFC Panel: A Panel shall be dead front, totally enclosed type with rear cable alley for capacitor mounting. It shall be free standing type to be mounted on floor and suitable for indoor application. It shall be cubicle type and possible to extend the panel in future from both the sides. The degree of protection for enclosure shall be IP 52. Separate segregated compartments shall be provided for circuit breakers, busbars, cable box, voltage transformers, wire ways, relays and instrument and control devices. Panel cubicles / modules shall be provided with hinged doors in front and back with facility for padlocking doors. All doors, panels, removable covers shall be provided with non deteriorating (neoprene) gaskets all around the perimeter. Adequate size cable alley shall be provided for easy clamping of all the incoming and outgoing cables irrespective of top or bottom entries.

Page 393: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

178 of 267

The switchgear cubicles shall be rigid and robust in design and construction fabricated out of CRCA sheet steel. Corrosion proof coating shall be provided to avoid rusting due to saline and sewage gaseous atmosphere. Total height of panel shall not exceed 2200mm. Cubicles shall be made from rigid welded structural frames made of structural steel sections or of pressed / formed sheet steel of not less than 3mm thickness. The frames shall be enclosed by sheet steel of at least 2mm thickness, smoothly finished, leveled and free from flaws. Stiffeners shall be provided wherever necessary. After fabrication of the Panels, the entire structure shall undergo a 7 tank treatment for removing dust, grease, rust etc. The Panels then shall be powder coated with approved shade. Name plate shall be fixed prominently on top of the switch board describing the panel designation. These labels shall be of non corrosive material. Busbar / Connection The main bus bar system shall be horizontal, 3 phases and 3 wire system. The bus bar shall be made from Aluminium. Rated short circuit withstands time for main and vertical bus bar shall be 50 KA for 1 second unless otherwise stated. Wiring and Terminations Power and auxiliary circuits shall be provided with 1100V grade XLPE insulated copper stranded flexible of grey colour. Coloured sleeves shall be provided on the termination for identification purpose. Crimping type copper lugs shall be used as termination. CT circuit shall be provided with 2.5 sq mm size of wires whereas PT / Control / annunciation / auxiliary circuits shall be provided with 1.5 sq mm size of wires. Power terminals shall be bus bar type. Fixed terminals of control circuit shall be of ‘melamine’ belonging to group of thermosetting compound generally known as aminoplasts. Material of control terminals shall have excellent resistance to deformations, optimum dimensional stability and strong resistance to surface discharge. Normal clip-on type fixed terminals shall be provided for Current transformer shorting. Power and control cable entry shall be from the bottom of the panel. Anti condensation heaters Anti-condensation heaters shall be supplied to maintain the interior of the APFC enclosure. Heaters shall be sized and located so as to prevent condensation of moisture during shutdown periods. The heaters shall permanently remain ON when the APFC is not in service and as such shall not cause damage to the components. Heaters shall be unaffected by the accumulation of moisture and shall have terminals adequately protected against moisture under severe weather conditions. Heaters shall be mounted on non combustible material and shall operate without thermal damage to the components or themselves. Heaters shall be rated single phase 230 volts AC. Heaters shall be controlled and protected through 2 pole MCB and thermostat. Auxiliary Supply

Page 394: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

179 of 267

The auxiliary supply for capacitor feeder would be 230V AC received from control transformer installed in each APFC. 5 Ampere socket shall be provided for lamp, receiving power from external PDB and operated through 2 pole MCB. Grounding Rated short circuit current withstand time for earth bus bar shall be 50 KA for 1 second for 415V. The material for earth bus shall be bare Galvanized iron. Provision of extension of earth bus bar on the outside shall be provided on either side of the switchboard. All panel doors shall be earthed. All meters and relays mounted on panel doors shall be connected to door through mounting screw. Nameplates Each APFC and capacitor unit /bank shall have a corrosive-resistant nameplate containing information in accordance with relevant IS. Additional information as stipulated in applicable standards shall be included in the nameplate for APFC and capacitor units /banks meant for use in hazardous atmospheres. The lettering shall be white in colour on black background put up on panel surface by the use of adhesive material. Cooling System All APFC panels and capacitor banks shall be provided with proper ventilation louvers/ boxes as per requirement .For panels operating in hazardous area, the fans shall be of an anti-static non-sparking material. Lifting Hook All APFC shall be provided with lifting hooks of adequate capacity. Illumination Illumination Levels The acceptable illumination level in each type of area shall be as per IS 3646 for indoor illumination and IS 1944 for outdoor illumination. Streets inside the waste water treatment facilities shall have minimum 20 lux as an illumination level.

Types of Luminaire Lighting in control rooms, switchrooms, MCC rooms, offices etc shall be achieved by means of fluorescent industrial type luminaires. In offices, control rooms and other rooms where visual display units will be used regularly, the luminaires shall be such as to avoid glare and reflections from the screens of visual display units. High intensity discharge lamps shall be used to achieve lighting in plant areas. All luminaries used for indoor lighting shall be corrosion proof. All luminaries at hazardously classified area shall be flameproof type as per IS 2206 and IS 5571.

Page 395: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

180 of 267

Luminaires with sodium vapour lamps (HPSV) lamps shall be used to illuminate roads and footpaths. These luminaries shall be of IP 65. Street Lighting The height of each street lighting pole shall be as per design requirement. Pole shall be octagonal and internally and externally hot dip galvanized. Mounting shall be on flange. Junction box shall be inside the pole. The cable from the lighting distribution board or feeder pillar to the first pole of street lighting circuit shall be 4-core (3 phase & neutral). After that, 4core cable will run pole to pole and at the end, again looped with first pole to maintain supply continuity, in case of damage of any cable. The tolerance for voltage drop in between PMCC to Main Lighting Distribution Board (MLDB) or Lighting Distribution Board (LDB) shall be 1% and between MLDB/LDB to last pole of the lighting circuit shall be 4%. Arrangement of street lights shall be zigzag type or on one side of the road and all street poles shall receive power supply through mains. The luminaires on successive lighting poles shall be connected to different phases. Connectors shall be provided at the base of each pole for the following purposes: For the ‘loop in’ and ‘loop out’ of the cables which run along the road To permit the circuit for the luminaire(s) mounted on the pole to be isolated without other poles being unaffected. Arrangement of Other Lighting Circuits The luminaries in each control room, switch room and PMCC room shall be divided between at least two circuits to reduce the risk of losing all the lighting, in case of failure of cable or switch etc. All lights shall be manually switched. One light switch shall not control the lights in more than one room. Light switches shall be located so that they are easily accessible on entry to buildings, rooms, etc. Emergency Lighting Emergency lighting shall be based on the use of luminaries, each of which incorporates batteries and other components so that it can continue to function even if the mains electricity supply has failed. If the mains electricity supply to an area fails, the emergency lighting shall only come on if the relevant light switch is in the ‘On’ position. Portable Emergency luminaries shall be provided as follows: 1 number each, 2 X 18 W CFL, inside each PMCC, Control room, Office etc. (minimum 1 hour emergency duration) 1 number each , LED type single beam light for Dry well, Wet well, process areas etc. (minimum 1 hour emergency duration) Emergency EXIT facias using photoluminescence material in green colour at strategic locations (e.g. Dry well exit, PMCC room, Control room etc.) shall be provided. Electrical Protection:

Page 396: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

181 of 267

Over-Current & Short Circuit Protection: All electrical Plant and Materials shall be provided with over-current and short circuit protection. This shall be arranged, as far as is practicable, so that a fault on any item of electrical plant is automatically interrupted without interrupting the operation of any other healthy plant. Residual Current (Earth fault) Protection: Residual current protection (sensitivity 100 mA) shall be provided for all socket outlets except those for hand lamps. Residual current protection (sensitivity 300 mA or Primary winding of every power transformer fed by a circuit breaker (instantaneous operation) and Every motor rated at 30 kW and over. The residual current protection shall operate within 5 seconds of the fault being detected. Instantaneous restricted earth-fault protection shall be provided for: Secondary winding of every power transformer rated at 1500 kVA or more. Operation of the protective relay shall trip the circuit breaker feeding the transformer and the associated circuit breaker on the secondary side of the transformer. Other Forms of Drive Protection Where specified, recommended by the driven equipment manufacturer or where otherwise appropriate, other forms of drive protection such as ‘low power’, ‘low current’ or ‘over-torque’ based on the measurement of electrical parameters shall be provided. Each type of such protection device shall be of a type tested by the equipment manufacturer. Wherever ‘low power’ or ‘low current’ protection is provided, the motor starter circuit shall be arranged so that the ‘low power’ and/or ‘low current protection’ is overridden: For a suitable time‘t’ after starting the motor, to prevent spurious tripping of the drive before it has achieved its steady state operating condition Whenever the ‘Test’ mode has been selected at the motor starter In the starter for each screen drive, an over-torque protection relay, type tested by the manufacturer of the protection relay shall be provided to prevent damage to the equipment. Following Protection shall be provided for the motors Short circuit protection Overload Protection Earth fault Phase Unbalance/ Failure Locked Rotor/ Stall Protection Warning before occurring of fault Thermistor protection (if applicable) Battery Charger

Page 397: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

182 of 267

Battery power supplies shall be suitable for operation with the battery system and voltage specified. The battery charger assembly shall be solid state constant potential incorporating a self protecting current limiting feature for protection against low battery voltage short circuit or reverse polarity connection to the batteries. The charger shall have controls for: on/off float/boost charge and indication of: automatic high rate charge rectifier failure high dc voltage low dc voltage battery voltage output current. Volt free contacts shall be provided for remote signalling of common alarm. The charger shall incorporate an automatic high rate charge circuit to be initiated manually or by operation of the rectifier current limit for a period of time. This shall automatically bring the battery system, over a site adjustable time period, to float charge level. Battery Batteries shall be Lead Acid (tubular) type in hard rubber/PP container designed, constructed and tested in accordance with IS 1651. Batteries shall be contained within in hard rubber /polypropylene cases. They shall be designed for low maintenance and shall have a life in service of at least 10 years. The batteries shall be suitable for use on switchgear and circuit protection applications. Batteries shall be housed within the battery charger enclosure or within a separate battery enclosure. The cells shall be arranged in tiers to enable a rapid visual check of electrolyte level and access for maintenance. Terminals shall be shrouded to prevent accidental contact. The battery enclosure shall be corrosion resistant and ventilated to prevent the build up of gases. The battery installation shall be supplied complete with all tools etc necessary for the safe and efficient maintenance of the batteries. Warning notices shall be provided for wall mounting to warn of the presence of charge gases. Co-ordination of Disconnecting Devices In many instances there is more than one device for disconnecting a fault. For example, in a direct-on-line motor starter, there are normally HRC fuse links to disconnect a short circuit fault, whereas it is intended that other faults be disconnected by the contactor. In each such case, the protection shall be arranged so that no device such as a Bidder is called upon to interrupt a fault in excess of the maximum breaking capacity of the device. All disconnecting devices shall meet the requirements for Type ‘2’ co-ordination in accordance with IEC 60947.

Page 398: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

183 of 267

Components Components for use in low voltage assemblies shall be in accordance with IEC 60947 Fuses and Links Fuses used for the protection of power circuits shall of the high rupturing capacity, HRC type. Semiconductor fuses shall be utilised to protect the soft starter. Fuses shall comply with IEC 60947. Fuse carriers and bases shall be black. The carrier and base for each neutral link shall be white. Fuses and links shall be positioned to enable easy removal of the carrier without risk of contact with live parts. Switches, Switch Disconnectors and Switch-Fuses Every switch, switch disconnector and switch-fuse for use in a power distribution or motor power circuit at up 1 kV A.C. shall comply with IEC 60947, utilisation category shall be AC 23B, and shall be suitable for padlocking in the ‘Off’ position only. Contactors for Use at Below 1 kV Utilisation category for each contactor for use at below 1 kV shall comply with IEC 60947. It shall be maintenance free and where possible allow replacement of the coil, without disturbance to the wiring. Indicator Lamp Circuits Every indicator lamp circuit shall be fused separately from any functional circuit so that an indicator lamp failure will not result in the failure of any functional circuit. A ‘lamp test’ facility shall be provided for each logical group of indicator lamps, as follows: Common ‘lamp test’ button shall be provided on the front facia of the switchboard or motor control centre for which indicator lamps are provided Holding the ‘lamp test’ button shall cause all the related indicator lamps to be illuminated. On releasing the button, the lamps shall return to there normal state. Indicator lamps shall be based on LED semiconductor technology. Harmonics The arrangement of the electrical system shall be such that any harmonics generated by the electrical do not: Exceed the limits permitted at the point of common coupling with the electricity supply company’s electricity distribution system Cause malfunction of any electrical Plant or of any electrical system Lead to overheating of any electrical Plant, Materials or of any electrical system. To limit the harmonics generated by electrical Plant, every rectifier rated in excess of 3 kVA shall be of the 6, 12, 18 or 24 pulse type. When designing a system utilising variable frequency drives (VFDs), provision shall be made to minimise the introduction of additional harmonics into the power grid as per standard IEEE 519. Electromagnetic Compatibility The electrical system shall be arranged so that no part of it:

Page 399: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

184 of 267

Gives rise to overheating of any metallic parts as a result of magnetic coupling. This situation can arise when single core power cables are used Gives rise to electromagnetic fields which can lead to the malfunction of other electrical plant and equipment. When the doors of switchboards, motor control centres and control panels are closed, the satisfactory use of laptop computers, mobile phones, etc in every room shall be possible. Will malfunction when the doors of switchboards, motor control centres and control panels are closed and portable or transportable items such as laptop computers, mobiles phones, etc are used in close proximity to electrical plant Plant and Materials shall comply with the Indian Standard EMC directive IS 14700 or IEC 1000-4-9. Earthing General: The resistance to earth of each earth electrode system on its own shall not exceed the value specified in the IS 3043. Each earthing system shall be arranged in the following manner. The cross-section of the main earth bar shall be appropriate for the rating of the transformer(s) and shall, in any event, be not less than 50 x 6 mm. The main earth bar shall be connected to each of the earth electrode systems by means of a suitably sized earth strip. A dedicated GI earth strip shall connect this main earth bar to each of the following: The neutral of the secondary winding of each transformer The earth bar in the power or motor control centre which is fed from the transformer(s) Each earth electrode system provided for the lightning protection of the building in which the motor control centre and transformers are housed. The casing or enclosure of each transformer, motor and other electrical equipments etc. Further GI conductors shall branch out from the main earth bar to act as protective conductors for metal walkways, stairways, handrails, mechanical plant, etc. Earth Electrode System: Earthing pit shall comprise of G.I. earthing plate or G.I. earthing rod. The plate/rod shall penetrate a minimum of three meter below ground level as per IS 3043. Where multiple rods are used, distance between them shall not be less than as specified in IS 3043. Marker posts and plates shall be provided to mark the route of buried electrodes. The markers shall be similar to those provided for cable routes. Earthing of Power or Motor Control Centre, Distribution Boards: Each switchgear, control panel and distribution boards shall be provided with an earth busbar running along its entire length. The earth busbar shall be located at the bottom of the Switchgear, Control Panel and Distribution Board.

Page 400: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

185 of 267

Earth busbars shall be of Galvanized Iron except in PMCC where it has to be of copper and shall be rated to carry the rated symmetrical short circuit current of the associated board/panel for one second. Earth busbars shall be supported to withstand stresses induced by the momentary current of value equal to the momentary current rating of the associated switchgear/switchboard. Positive connection of all the frames of equipment mounted in the switchboard to the earth busbar shall be maintained through conductors of size equal to the ground busbar or the load current carrying conductor, whichever is smaller. Earthing of draw out equipment frames shall be achieved through a separate plug-in contact. All instrument and relay metallic cases shall be connected to earth busbar by means of 1100 V grade, PVC insulated, stranded, tinned copper, 2.5 sqmm. Conductor shall be looped through the case earth terminals. The earthing Galvanized iron conductor located below ground level shall be coated with the tar material and also every welded joint for earthing shall be coated with tar material.

EQUIPMENT ERECTION AND COMMISSIONING

a) In accordance with the specific installation instructions, as shown in manufacturer’s drawings or as directed by the Engineer or Engineer's Representative the Bidder shall unload, erect, install, wire, test and place into commercial use all electrical equipment included in the contract. Equipment shall be installed in a neat manner so that it is level, plumb, square, and properly aligned and oriented.

b) The Bidder shall furnish all supervision, labour, tools, equipment, rigging materials and incidental materials such as bolts, wedges, anchors, concrete inserts etc. required to completely install, test and adjust the equipment.

c) Manufacturer’s drawings, instructions and recommendations shall be correctly followed in handling, setting, testing and commissioning of all equipment and care shall be exercised in handling to avoid distortion to stationary structures, the marring of finish, or damaging of delicate instruments or other electrical parts.

d) The Bidder shall erect and commission the equipment as per the instructions of the erection engineer(s) and shall extend full co-operation to him.

e) In case of any doubt/misunderstanding as to correct interpretation of a manufacturer’s drawings or instruction, necessary clarification shall be obtained from the Engineer or the Engineer's Representative. The Bidder shall be held responsible for any damage to the equipment consequent to not following a manufacturer’s instructions correctly.

f) The Bidder shall move all equipment into the respective buildings through regular doors or floor openings provided specifically for the equipment. Wherever possible the Engineer’s crane or cranes will be made available for lifting heavy equipment and materials. The Bidder shall make his own arrangement for lifting of equipment when the Engineer’s crane or cranes are not available. Operation of the Engineer’s crane shall be by the Engineer’s personnel only.

g) Where assemblies are supplied in more than one section, the Bidder shall make all necessary mechanical and electrical connections between sections including the connections between busbars/wires. The Bidder shall also carry out the

Page 401: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

186 of 267

adjustment/alignments necessary for proper operation of the circuit breakers. All insulators and bushings shall be protected against damage during installation. Insulators or bushings chipped, cracked or damaged due to negligence or carelessness shall be replaced by the Bidder at his own expense.

h) The Bidder shall take utmost care in handling instruments, relays and other delicate mechanisms. Wherever the instruments or relays are supplied separately, they shall be mounted only after the associated control panels have been erected and aligned. The blocking material/mechanism employed for the safe transit of the instruments and relays shall be removed after ensuring that the panels have been completely installed and no further movement of the same would be necessary. Any damage to relays and instruments shall be immediately reported to the Engineer or Engineer's Representative.

i) Switchgear and motor control centre shall be installed in accordance with the latest Indian Standard Code of Practice 10118 and manufacturer’s instructions. The switchgear and motor control centre panels shall be installed on finished surface or concrete or steel sills. The Bidder shall be required to install and align any channel sills which form part of the foundations. Tape or compound shall be applied where called for by manufacturer’s drawings. The base of outdoor type units shall be sealed in an approved manner to prevent ingress of moisture.

j) Care shall be taken during handling of insulating oil to prevent ingress of moisture or foreign matter. In the testing, circulation, filtering, or other wise handling of oil, rubber hose shall not be used. Circulation and filtering of oil, the heating of oil by regulated short-circuit current during drying runs and sampling and testing of oil shall be in accordance with manufacturer’s and the latest Code of Practice IS : 10028.

k) After installation of all power and control wiring, the Bidder shall perform operating tests on all switchgear and power control centre / motor control centre to verify the proper operation of switchgear/panels and the correctness of the interconnections between various items of equipment. This shall be done by applying normal a-c or d-c voltage to the circuits and operating the equipment. Megger tests for insulation, polarity checks on the instrument transformer, operation tests on equipment, and manufacturer’s installation tests shall be carried out by the Bidder who shall also make all necessary adjustments as specified by the manufacturer for proper functioning of the equipment.

l) Installation and testing of the battery and battery chargers shall be done in strict compliance with the manufacturer’s indications.

m) Equipment furnished with finished coats of paint shall be touched up by the Bidder if their surface is spoiled or marred while handling.

n) Foundation work and grounding - in of fixing bolts or channels for all switchgear, motors, motor control centre will be carried out by the Bidder.

o) All commissioning tests shall be carried out at site after completion of installation. Bidder shall ensure to use calibrated test equipment having valid calibrations test certificates from standard laboratories traceable to National Standards.

p) All the electrical equipment will be run on a trial basis for a minimum period of 30 days.

q) Guarantee period shall be mentioned for all such equipment.

Page 402: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

187 of 267

r) Following safety procedure and practice shall be implemented by electrical Bidder in switchgear room and transformer yard/substation as per latest edition of IS: 5216.

i. Rubber mat

a) In front of 11 kV switchgear

b) In front of LV switchgear in switchgear room.

ii. Shock treatment charts

a) One chart near 11 kV switchgear.

b) One chart near LV V switchgear.

iii. Caution/Danger board

a) 11 kV switchgear : 1 No

b) LV switchgear/motor : 3 Nos.

c) PDB/MLDB/LDB : 2 Nos.

iv. Fire Safety

The requirement of portable fire extinguisher and fire bucket with sand in electrical equipment room and transformer yard shall be provided as per Fire Protection Manual by Regional Tariff Committee.

v. Bidder’s License

The Bidder shall obtain the necessary valid license or authorization from the state licensing authority to do the installation work. The technicians deputed by the Bidder shall hold valid permits issued by the Licensing authority.

The electrical installation work shall be carried out by licensed electricians only and approved by appropriate authorities. It is the responsibility of Bidder to get approval of complete system from the electrical inspectorate.

Painting

a) All sheet steel work shall be phosphated in accordance with relevant standards for phosphating iron and steel.

b) Oil, grease, dirt and swarf shall be thoroughly removed by emulsion cleaning.

c) Rust and scale shall be removed by pickling with dilute acid followed by washing with running water, rinsing with slightly alkaline hot water and drying.

Page 403: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

188 of 267

d) After phosphating, thorough rinsing shall be carried out with clean water, followed by final rinsing with dilute dichromate solution and oven drying.

e) The phosphate coating shall be sealed by the application of two coats of ready mixed, stoving type zinc chromate primer. The first coat may be flash dried while the second coat shall be stoved.

f) After application of the primer, two coats of finishing synthetic enamel paint shall be applied, with each coat followed by stoving. The second finishing coat shall be applied after completion of tests. The colour for the finishing paint shall be as specified.

g) Each coat of primer and finishing paint shall be of a slightly different shade to enable inspection of the painting.

h) The final finished thickness of paint film on steel shall not be less than 100 microns, and shall not be more than 150 microns.

i) Finished painted appearance of equipment shall present an aesthetically pleasing appearance,free from dents and uneven surfaces.

j) Material not complying with the foregoing requirements are liable to be rejected.

Galvanising

Wherever galvanising has been specified, the hot dip process shall be used. The galvanised coating shall be of uniform thickness. Galvanising shall be carried out after all drilling, punching, cutting, bending and welding operations have been carried out. Burrs shall be removed before galvanising. Any site modification of galvanised parts should be covered well by zinc rich primer and aluminium paint.

Galvanising of material shall be carried out in accordance with the latest editions of IS:2629, 2633, 4759 and 6745.

Schedule of preferred makes for Electrical Equipments

(a) HV switchgear ABB/ Areva T & D /Crompton Greaves/Larsen and Toubro/ Schneider Electric/Siemens

(b) Air Break Switch 11 kV Insulator

Jayshree Insulators /Prime Insulators /Vishal Maleable /W.S. Insulators

© Transformers ABB/ Crompton Greaves/Imp/Kirloskar /Volt amp

(d) Motors ABB/ BCH Electric Crompton Greaves/Kirloskar/Siemens

(e) LV switch gear/PMCC ABB/ Areva T & D /Crompton Greaves/Larsen and Toubro/ Legrand/Rockwell Automation /Schneider Electric/Siemens

(f) Air circuit breaker/ ABB/ Areva T & D /Crompton Greaves/Larsen

Page 404: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

189 of 267

MCCB / MCB and Toubro/Legrand / Schneider Electric/Siemens

(g) Switch/fuse unit ABB/ Areva T & D /BCH Electric /Crompton Greaves/Larsen and Toubro/ Schneider Electric/Siemens

(h) DOL /Star Delta /Starters

Ssoft starters

ABB/ Areva T & D /Crompton Greaves/Danfoss/ Larsen and Toubro/ Rockwell Automation/ Schneider EElectric/ Siemens/ Toshiba

ABB/ Areva T & D /Crompton Greaves/Danfoss/ Larsen and Toubro/ Rockwell Automation /Schneider Electric/Siemens

(i) Contactors ABB/ Areva T & D /Crompton Greaves/Danfoss/ Larsen and Toubro/ Rockwell Automation /Schneider Electric/Siemens

(j) Indicating lamps BCH Electric /Larsen and Toubro /Siemens/IEC/Technik/ Raas Controls

(k) Instrument Transformers

ABB/KAPPA/Jyoti /Pragati Electricals/Siemens

(l) Push button BCH Electric /Larsen and Toubro /Siemens/Technik

(m) Indicating meters Automatic Electric /IMP/MECO

(n) Terminal blocks Connect well/ELMEX/WAGO

(o) Lugs DOWELL/Jainsons or equivalent as per IS approved by executive engineer

(p) Cables Asian Cables /Cable Corporation of India /Fort Gloster / Finolex /Havells /Polycab/ RPG Cables/Universal Cables

(q) Cable tray Profab /Delta system /Vinfab/West Coast Engineering/ or equivalent as per IS approved by executive engineer

(r) Power capacitor ABB/ Asian Capacitors /Crompton Greaves/ Madhav Capacitors /Shreem Capacitors/ Schneider Electric /Universal

(s) Lighting fixtures Bajaj/Crompton Greaves /Havells /Philips /Surya/Wipro

(t) Protective relays ABB/Areva T & D /Siemens

(u) Cable glands Braco/Comet or equivalent as per IS approved by executive engineer

Page 405: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

190 of 267

(v) Annunciation Minilec or as per IS and approved by Executive Engineer

(w) Digital energy meter Larsen and Toubro/Conzerve /Secure meters

(x) Control switch Kaycee /Switron or equivalent as per IS and approved by executive engineer

(y) Fuse Larsen and Toubro /Cooper Bussman/Siemens

(z) Conduit AKG Industries /BEC conduit /Precision ppi/ or equivalent as per IS and approved by executive engineer

(aa) Junction box BCH Electric / Prompt Engineering Works/Pratik Electricals/Sudhir Switchgear/Trinity Electrical or equivalent as per IS and approved by executive engineer

Page 406: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

191 of 267

TECHNICAL STANDARDS FOR DIESEL GENERATING SET

This specification covers the Design, Manufacture, Delivery, Installation, Testing, Commissioning and Performance monitoring of Diesel Generating Set and its auxiliaries.

The scope of work by the Bidder shall include but not limited to the following: 1. DG set complete with diesel engine and AC generator with base frame, coupling,

acoustic housing, voltage regulators etc. 2. Fuel oil storage utensils or drums, fuel unloading hand pumps, interconnecting pipes

& fittings etc. 3. Lubrication oil system with piping and pumps. 4. Starting air system including compressed air system, control and instrumentation,

interconnecting pipes and fittings. 5. Engine cooling system. 6. Exhaust system including silencer, expansion bellows, chimneys, support structure

etc. 7. Oil water system. 8. Electrical system including switchgear, auxiliary distribution boards, controls &

protections, interconnecting power and control cables, earthing, lighting etc. 9. Engine ventilator system. 10. Preliminary & basic engineering documents. 11. Installation, testing and commissioning periodical performance monitoring.

All accessories, fittings etc. required to make the installation complete in all respects and to operate in smooth, trouble free fashion shall be included irrespective of whether such accessories and fittings are specifically mentioned herein or not.

The Diesel Generating Set shall be of indoor type, manually & automatically operated, designed for continuous operation as per requirement of prime power rating. The set shall consist of diesel engine coupled to suitable alternator having self, brush-less /static excitation system and include all necessary accessories and control panel.

The engine and generator shall be mounted on a single robust fabricated steel frame. Required set of stainless steel foundation bolts, nuts, washers etc., and set of spanners and tools shall be supplied.

Bidder shall assess the critical load requirement of STP that has to be met by DG set when Utility power is not available and accordingly DG set sizing shall be submitted to thy Engineer for approval.

AMBIENT CONDITIONS

The performance values shall based on method of cooling using remote radiator & shall be valid at reference conditions, which are:

Altitude above sea level 2000 m

Ambient air temperature 45 °C

Page 407: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

192 of 267

Corresponding Relative humidity 100 %

Seismic zone V

Power plant gross performance at design ambient conditions per DG set.

Electrical active power ___________kW

____Number

Electrical apparent power to match above/ or next higher rating of manufacturer’s standard

at power factor 0.8

EMISSION NORMS

The offered diesel fuel engines shall meet the currently applicable Notification of Ministry of Environment and Forest (MOEF), CPCB, Govt of India and state Govt. of Meghalaya and Meghalaya state pollution control board emission norms as applicable for diesel based generator sets.

CODES AND STANDARDS

The Diesel Generating Set with all its components shall comply with latest applicable standards, regulations and safety codes in the locality where this equipment will be installed. The equipment shall conform to the following standards with latest amendments.

Standard No. Title

IS : l460 Automotive diesel fuel Specification IS : 2253 Designation for types of construction and mounting arrangement of

Rotating Electrical Machines IS : 4889 Methods of determination of efficiency of rotating electrical machines IS : 6362 Designation of methods of cooling of rotating electrical machines IS 8223 Dimensions and output series for rotating electrical machines IS 12065 Permissible limits of noise level for rotating electrical machines IS 12075 Mechanical Vibration of Rotating Electrical Machines for rotating

electrical machines IS 14568 Dimensions and output series for rotating electrical machines Part-2 IS/IEC 60034 rotating electrical machines BS 5000 Specifications for Rotating Electrical Machines of particular types or for

particular applications BS 5514 Reciprocating Internal combustion engines- performance Specification for

over speeding protection BS ISO 3046 Reciprocating Internal combustion engines- performance speed governing BS ISO 8528 Reciprocating Internal combustion engine driven alternating current

generating sets

Page 408: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

193 of 267

DIESEL ENGINE

General: The diesel engine shall be vertical, single acting, water cooled, mechanical injection type

with turbo charger and shall be furnished with the minimum equipment according to the standard practice. The horsepower rating, auxiliaries guaranteed fuel consumption, governor performance and torsional vibration shall be in accordance with BS: 5514 or approved equivalent standard. The Engine shall have the following as minimum.

• Fly wheel and flywheel housing to suit Alternator.

• Air cleaner dry type.

• Corrosion inhibitor coolant.

• Fuel pump.

• Fuel filter and lube oil filter.

• Radiator.

• Fan (Blower type) with guard.

• Governor

• 24 volts D.C. Starter/Dynamo/ Built in Voltage regulator/Battery charger.

• Throttle control lever.

• Safety control against low, lube, oil pressure and high cooling water temperature.

• Starting key.

• Lube oil Temperature gauge.

• Lube oil pressure gauge.

• Water temperature gauge.

• Battery charging Ammeter.

• Hour meter and RPM Indicator.

• Exhaust pipe with glass wool/rock wool insulation with aluminium cladding.

• Sensors for oil pressure, high water temperature and over speed

• MS fuel piping with valves.

• Minimum 6 numbers Anti Vibration, Mounting pads and other accessories as per manufacturer’s recommendations.

• Spare parts book and maintenance manual

Page 409: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

194 of 267

• Fuel tank with min of 4 hour running duration, mounting brackets, complete with level indicator, fuel inlet and outlet, air vent, drain plug, inlet arrangement for direct filling.

• Set of batteries consisting of 2 Nos. 12 V suitable batteries connected in series complete with leads and terminals along with battery stand. Batteries shall be located as close as possible to the Generator set to minimize starting circuit resistance.

Fuel oil system: Fuel tank with minimum of 4 hour running duration, mounting brackets, complete with level indicator, fuel inlet and outlet, air vent, drain plug, inlet arrangement for direct filling.

Mechanical oil level indicators and actuators to indicate low and high levels shall be supplied. An engine driven booster pump shall be provided to deliver fuel oil from the supply line to the fuel oil injectors through Engine mounted Fuel Filters. Necessary connecting hoses shall also form part of the supply.

Lube oil System: Automatic pressure lubrication shall be provided by engine driven gear type pump. The system should be complete with oil cooler and Engine mounted fine mesh filters, By-pass filter, and electrical motor driven priming pump along with hand operated pump as an emergency standby. Necessary interlock for alarm and tripping the set in case of failure of the lubrication system shall also be provided.

Jacket Water System:

This shall be complete with radiator, thermostatic control with alarm and trip facilities on high water temperature tank, etc. Suitable corrosion resistor shall also form part of the supply.

Engine starting system: Starting of diesel engine shall be by electrical start system.

The electrical starting system shall comprise of starter motor, batteries, Battery Charger and necessary instruments / accessories.

Air Intake and Exhaust System Air intake system shall comprise of air cleaner and silencer.

The exhaust system shall consist of an Exhaust Gas driven Turbocharger, Residential Exhaust Gas Silencer and Flexible Exhaust pipe with necessary piping adapters, etc.

Governing System DG set shall be supplied with an Electronic Governor for keeping constant speed within

certain limits with variable load.

The governor shall have following features: a. An over-speed trip mechanism shall be provided to automatically cut-off fuel in case

the set reaches over-speed between 110 to130 percent of the rated speed. An engine mounted emergency stop PB shall be provided for tripping the engine.

Page 410: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

195 of 267

Coupling

The engine shall be provided with flexible coupling to couple alternator of capacity. The coupling shall also be provided with a protective guard.

Auxiliary Equipment: A RPM indicator /Tachometer shall be provided. A mechanical device with double drive adapter shall be provided for tripping the engine on over speed. Arrangement shall be made for tripping the ACB also on over-speed with suitable contactors. Cooling Water System

The cooling water system shall be complete with Radiator, Engine Mounted Pumps and Piping with necessary instrumentation/ protective measures. The Bidder shall submit complete details of the systems with bill of materials on receipt of the order.

Instruments The following instruments shall be provided.

Water Temperature Gauge. Lube Oil Pressure Gauge. RPM / Hour meter

The following protection shall be provided as a minimum for preventing the set from operating under abnormal operating conditions:

Low Lube Oil Protection High water Temperature Over speed protection

GENERATOR (ALTERNATOR)

The alternator shall be designed for 415 rated voltage, 50 Hz frequency, prime power

rating with class `H' insulation. The alternator shall be capable of carrying an overload of 10% for one hour in any 12

hours operation without exceeding temperature rise limits specified in BS 5000 when corrected to ambient temperature at site.

The alternator shall withstand a short circuit at its terminals for three seconds with

excitation adjusted to develop rated voltage at no load without any damage. The sub-transient fault current shall not exceed l5 times the full load current.

The field winding shall be fully insulated from the core. The field system shall have low

inductance to allow good voltage regulation.

Page 411: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

196 of 267

The 500kW and above size alternator shall be separately-excited through a suitable permanent magnet stator and rotor combination shall power the voltage regulator.

The alternator up to 100 KW shall be self-excited.

The alternator shall be of drip proof construction and shall have suitable fan for cooling. The line and neutral ends of each phase winding of the Generator shall be brought out on

six suitably located terminals. The terminals shall be suitable for terminating bus duct. Bidder shall provide suitable supporting arrangement for connecting Bus duct to the terminals. Enclose the terminals to prevent short circuits.

Automatic Voltage Regulator shall be provided. 240V single phase space heater shall be provided in the lower part of the stator frame.

When the alternator starts running, arrangement shall be made such that space heater shall be cut out automatically.

The Alternator shall be provided with two numbers earthing terminals, which shall be

separate from the neutral terminals. The neutral shall be brought out to fully insulated terminal. The Alternator shall be of externally regulated type with a voltage variation of +/-5% of

the rated voltage with +/- 2% frequency variation. The Terminal chamber of the alternator shall suitable for terminating bus duct. Provision

of necessary adapter chamber for this purpose is in the scope of the DG set Bidder. The alternator shall be provided with thermistor as a protection against temperature rise.

PERFORMANCE REQUIREMENTS

The unit shall be capable of starting from cold condition. Maximum output voltage regulation shall be +/-1% for all load condition between no

load to full load with power factor not less than 0.8. The unit shall be capable of delivering a peak output of l0% in excess of the rated output

for a period of one hour out of a total of l2 consecutive hours of operation, without exceeding permissible temperature limits and with a fairly visible exhaust.

The unit shall operate up to ll0% of the rated speed over the entire range of output

without undue vibrations and noise. Necessary Current Transformers shall be provided for the Differential Protection and

Earth Fault Protection of the set.

The noise level of the DG set shall not exceed 75 dB (A) at distance of 1 meter in open free field environment as per ISO 8528 part 10.

Page 412: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

197 of 267

CONTROL PANEL

The control cubicle shall be SWG16 CRCA sheet steel fabricated, totally enclosed dust and vermin proof, suitable for floor/mounting type and shall incorporate the following as minimum.

• One ammeter with ammeter selector switch

• One voltmeter with voltmeter selector switch

• One frequency meter

• One set of suitable ratio current transformers.

• One suitably rated Moulded Case Circuit Breaker or Air Circuit Breaker with overload, short circuit protection.

• One set of instrument fuses

• Two indicating lamps for Generator ‘Supply ON/Set Running’ and ‘Load ON’.

• One number multifunction meter to monitor KWH/ KW / PF/f.

• The control panel will be with all internal wiring, fuses and other accessories. It will have provisions for receiving inter connecting cables between alternator, panel.

• One indication / annunciation panel with tripping arrangements for lube oil and high water temp etc.,

• One earth leakage relay.

• One set of suitable capacity aluminium bus bars with incoming and outgoing termination.

• Instrument fuses duly wired and ferruled.

• Independent earthing lead of G.I Strip of suitable size and connection to earth for body/enclosure and neutral.

• Earthing system with inspection chamber and hinged door complete minimum 4 numbers as per IS 3043.

• Safety Items:

• ‘ABC' dry chemical powder type ,portable Fire extinguishers, of size 5kg each ,manufactured from CRCA sheets in all welded construction, body coated with glossy corrosion resistant epoxy powder coating ,with inbuilt water proof pressure gauge ,with wall bracket ,as per IS 2190 and IS 13849 with latest amendments-2 Numbers.

• 415 V ,A' class, non-skid ,high voltage insulation synthetic mat made from electrometric polymer material ,1000 mm wide , 2.0 mm thick, Dielectric strength 3300V for 1 minute ,fire retardant ,no adverse effect of transformer oil ,diesel, acid ,alkali, High Tensile & Elongation properties, good mechanical strength to withstand load and movement of breaker trolley ,as per IS 15652 with latest amendments -3 sqmtr.

Page 413: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

198 of 267

• Shock treatment chart , duly laminated in Khasi (Local) and English languages.-2Nos.

• First aid box with all essential medicines including wall mounted bracket – 2 Nos.

• 415 V, Aluminium, anodised Danger caution plate in Khasi (local) and English languages with the sign of skull and bones in signal red colour on front side, as per IS 2551 with latest amendments-2Nos.

• Ear muff with wide ahead band with padding shall provide firm and comfortable fit, easily adjustable multi-position [over head/under chin/behind head] headband with / without elastic crown strap for individual fit. NRR min 24 dB. CE certified as per IS 6229 with latest amendments.-2Sets.

• Galvanised mild steel sand Fire bucket with lid and handle, 9 Litres capacity. Buckets to be provided with suitable strand with 4 Nos. hooks to hang sand filled buckets, as per IS 2546 with latest amendments-4 Nos.(1 Set)

CONTROL SYSTEM (AMF Panel)

Control system for the diesel generator shall have manual and automatic operation. The diesel generator set will be normally at rest when the station AC supply is available from normal power source. In case of an emergency the diesel generator set shall be started as follows:

a. Auto Mode:

When the Mains supply fails, the ‘Mains Supply Failure Monitor’ operates after a preset time of 10 seconds. This actuates the ‘3 Impulse Engine Start’ control unit. The control unit gives three starting impulses with an interval of approximately 1.5 seconds. If the Engine starts at the first impulse, this unit shall shut off. Otherwise, it gives further two impulses during which time, if the engine does not start, the unit shuts OFF, activating the audio- visual alarm.

b. Manual Mode:

It should be possible to start the engine manually through a suitable push button. Suitable selector switches to be provided on the control panel shall do the selection of automatic/manual starting as well as local/ remote starting. Bidder shall note that in the case of manual starting by push buttons except for the starting impulse, which is manual, all other starting sequence shall be automatic as described below:

As soon as the diesel generator set reaches its rated speed and generates its rated voltage (a period not exceeding 30 seconds), a voltage and frequency sensitive relay (to be supplied by Bidder), shall permit the closing of the generator breaker. Three attempt starting facility shall be provided. In case the diesel engine fails to start and reach rated speed within 30 seconds, it shall be disconnected and locked out automatically.

Page 414: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

199 of 267

BATTERY CHARGER

A Battery Charger separate from the Control Panel shall be solid state design, constant voltage and current limiting type provided for charging the battery. The system shall be suitable for operation on 230V, 50 HZ AC supply. The Charger shall be of the Static Type with Full wave Silicon Rectifiers. Two Separate Rectifier circuits, one for Trickle Charging and the other for Boost Charging, shall be provided in the Charger. The Rating of the components shall be so chosen to deliver the Battery Charging Current as per the Recommendations of the Battery manufacturer without overloading any of the components of the charger. Necessary filter circuits shall be incorporated to obtain a smooth DC output. The ripple content at the output shall be within the limits permitted by the IS 7204 and IEC 60146. The Charger shall be with Float / Boost Charging facility. Necessary selector switch shall be provided for changing the mode of charging. A DC ammeter shall be provided in the charger panel to read the rate of charging of the battery. The scale shall be so chosen that the charging current can be conveniently read in both the modes of charging. A DC voltmeter shall also be incorporated for reading the charger voltage. Protection against reverse battery connection and DC earth fault relay for earth leakage protection shall be provided. Each charger shall be galvanically isolated from the input power supply by providing a transformer at its output. Necessary protection circuit shall be incorporated to automatically disconnect the charger during the starting of the set.

MISCELLANEOUS

Set of metering/ protection current transformers required on the neutral side of the alternator.

Set of aux. contactors/ relays/ timers.

Set of control fuses/ links. One no. Impulse counter Set of 24-way window type annunciation system with hooter and Accept, reset, test push

buttons for visual annunciation of the abnormal operating conditions of the set. Set of push buttons/ indication lamps. Set of Battery charger equipment with voltmeter, ammeter, ON/OFF mode selector

switch, indication lamps etc.

Page 415: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

200 of 267

Cable Gland plate for entry of control cable from the bottom of the panel. The cables used for power, control and instruments shall conform to the relevant Indian

standard.

PACKING AND DESPATCH

The unit shall be packed suitably to facilitate transportation and installation. During transport, care shall be taken to avoid damage to paint or accessories of the equipment. If any damage is caused during transport, the Bidder shall repair the same, free of cost.

TESTS

Following tests shall be carried out on Diesel Generator: Routine tests for engine shall be performed as per BS-5000 and or BS 5514, Routine tests for alternator shall be performed as per IS 4722 and or IS/IEC 60034. Performance Tests including operation of the set at rated load for 2 hours and at 110% of

the rated load for 1 hour. Bidder shall submit 5 copies of routine tests and type test certificates for approval before

dispatch.

PAINTING

Painting shall include emulsion cleaning, pickling with dilute acid, washing and rinsing by water, phosphating and oven drying. One (1) coat of stoving type zinc chromate primer and two (2) coats of synthetic enamel paint shall be applied.

Final shade of the DG set and Control panel shall be light grey to Shade No.63l as per IS 5.

ACOUSTIC ENCLOSURE

All DG sets shall be provided with soundproof acoustic enclosure with the following specifications.

1. The Acoustic Enclosure shall be built in the form of canopy that can be installed over the DG set on the existing concrete foundation.

2. Acoustic Enclosure (Sound proof housing) shall ensure that sound levels from Generating sets are reduced to meet stipulated standards set by the pollution control board and the Bidder shall get necessary clearances from the Pollution control board. All statutory fees for this purpose shall be born by the employer.

3. Construction; The Acoustic enclosure shall be free standing consisting of modular construction panels, extendable on either side. It shall be possible to have extended space in the acoustic canopy for any additional maintenance job to be carried out on the Generating Set.

Page 416: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

201 of 267

4. The Freestanding acoustic enclosure shall be such that, it can be installed on a concrete platform (extended foundation) where the DG set is installed and shall be independent of any support from any other structure.

5. The Acoustic enclosure shall be suitable for outdoor (weather proof)/ indoor installation, according to convenience of space at the customers end.

6. The Acoustic enclosure shall have 4 doors on all four sides. Alternatively, in congested space, the enclosure shall be supplied with sliding doors.

7. Separate exhaust chambers shall be provided for outflow of exhaust gas, through hot chambers. These shall be vertically extended in case of gensets higher than 250KVA.

8. Air intake for DG sets shall be provided from the rear side of the DG set. Suitable louvers shall be provided at adequate height for hot air exhaust inside the enclosure, so as to maintain a differential of 5-6 deg.C between atmosphere and Acoustic enclosure.

9. Painting: All sheet surfaces shall be de-greased and de-rusted and then treated with epoxy based primer for hardening before finally painting with suitable grade paint in 2 coats of approved quality and shade.

10. Control Systems: The Acoustic enclosure shall be suitable for enclosing the control and distribution panel.

INSPECTION

Manufacturer’s quality assurance plan shall be submitted for approval to the purchaser. Routine tests shall be witnessed by the purchaser or third party as per approved quality assurance plan.

Bidder/OEM shall give at least fifteen days (l5 days) prior intimation in writing regarding schedule of the routine inspection tests.

WARRANTEE

Engine & Alternator The engine and alternator shall be warranted for a period of 5000 hrs of operation from the date of commissioning or for a period of two years from the date of dispatch/supply, whichever is earlier against any manufacturing defect/defective materials only. Electrical and other proprietary items shall be covered as per the respective manufacturers standard warranty clause. The warranty shall not cover normal wear and tear.

DRAWINGS AND INSTRUCTION MANUALS

• Bidder shall submit four (4) sets of the following drawings for approval after

award of contract. • Complete assembly drawing of DG set showing plan, elevation, sectional view

indicating all components/ parts.

Page 417: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

202 of 267

• General arrangement drawing for control panel complete with dimensions, foundation details, bill of materials and internal arrangement.

• Control schematic and wiring diagram.

• General arrangement drawing for Bus duct along with design calculations.

• Cable schedule (Power/ Control/ Instrumentation).

• Manufacturers descriptive literature on various components used in DG set and

control panel.

• One print of each drawing will be returned to the Bidder after making all necessary corrections, changes and required clarifications. Bidder shall incorporate these and send within fifteen (15) days, six prints and one reproducible of each drawing marked "Certified for record and use ".

• Bidder shall submit seven copies of instruction manual on installation,

maintenance and operation of DG set and control devices and parts catalogue.

INSTALLATION & COMMISSIONING OF DG SET

Bidder shall carry out installation work at site covering assembly of set at site, installation of auxiliaries, control panel, cable laying / termination, provision of earth pits etc. and conduct site tests and commission the sets including conducting trial runs to prove the performance of the set. The scope also includes but not limited to the following: • Loading & Unloading of the set at the site and transportation to the place of

erection as required. • Supply lube oil & greases • Supply of Diesel for trial running of the set • Supply of cables, glands, lugs, earthing materials, cable trays etc., • Erection of all equipment including the control panel • Interconnect all piping, valves, fittings and accessories from day tank to dg set • Erection & commissioning of Static Battery Charger panel • Laying & Termination of power, control & Earthing cables between Generator,

Engine, Control Panel & Batteries. (Conduit wiring is not acceptable) • Painting

Page 418: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

203 of 267

• Cleaning all pipes internally remove debris and make all equipment ready to receive fuel, oil, power etc.,

• Check control circuit on Auto – Manual operation • Commission the set • Test it on ½, ¾ & Full load for at least 4 hours each. Check fuel oil and lube oil

consumption & calculate efficiency at each load • Preparation of Cable schedule • Provision of anti vibration pads

The Bidder shall arrange to submit drawings to authority, get the approval of drawings, arrange for inspection and obtain necessary safety certificate from authority and any other statutory agency such as Meghalaya /Central Pollution Control Board approvals for running the DG set.

Makes

The Diesel Generator Sets shall be of one of the makes as specified ahead. Cumins /Sudhir Gensets Kirloskar Generator

D. ERECTION, TESTING AND COMMISSIONING

1 TESTING – GENERAL

1.1 Testing of the critical items (Transformer, HV Switchgear, LV Switchgear, HV and LV cables etc in case of electrical discipline ) at the manufacturer’s premises will be required in accordance with the conditions of contract. All inspection, examination and testing shall be carried out in accordance with appropriate national and or international standards.

1.2 All instruments used for such tests shall be calibrated and certified by an approved independent testing authority not more than 9 months prior the test in which they are used. The Engineer’s Representative reserves the right to impound any instrument immediately after test for independent testing. A certificate shall be produced by the Bidder prior to carrying out every test showing the reading obtained, calculations and full details of the calibration certificates referred to.

1.3 If the Engineer’s Representative witnesses a test he shall be given a copy of the test results and certificates immediately. Whether he witnesses a test or not, copies of test

Page 419: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

204 of 267

certificate shall be sent to the Engineer’s Representative. No item of the plant shall be forwarded to the site until its test certificate has been approved in writing by the Engineer’s Representative. Six copies of the test certificates shall be supplied in suitable folders with proper index.

1.4 Certificates shall be clearly identified by serial or reference number where possible to the material being certified and shall include information required by the relevant reference standard or specification clause.

2 INSPECTION AT MANUFACTURER’S PREMISES

2.1 The inspection of all critical equipment (required to be supplied to complete the works) shall be done as detailed in this specification. Only defect free and sound material meeting the technical requirements of this specification and in accordance with a high standard of engineering will be acceptable to the Engineer’s Representative.

2.2 To meet the requirements of inspection, testing (including testing for chemical analysis and physical properties) arrangement shall be made by the Bidder and test certificates shall be submitted to the Engineer’s Representative. Engineer’s Representative will have the right to witness or inspect the above mentioned testing/inspection at final stage as desired by him. Calibration certificates or test instruments shall be produced for the Engineer’s consent in advance of testing and if necessary instruments shall be recalibrated or substituted before the commencement of the test. Items of plant or control systems not covered by standards shall be tested in accordance with the details and programme agreed between the Engineer and Bidder.

2.3 If during or after testing, any item of the plant fails to achieve its intended duty or otherwise prove defective it shall be modified or altered or replaced as necessary, retested and re-inspected as required by the Engineer.

2.4 At least 21 days advance notice shall be given to the Engineer before the specified tests are to be carried out.

2.5 No material is to be delivered to site without the above described inspection having been carried out and clearance is given for dispatch or officially waived off in writing by the Engineer’s Representative

Page 420: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

205 of 267

INSTRUMENTATION & AUTOMATION SPECIFICATION

Introduction

(a) This part covers the general requirements for the Design, Delivery, Installation, Inspection and Testing and Commissioning of the Instrumentation, Control, Automation / Supervisory Control and Data Acquisition (SCADA) /HMI system.

Reference Standards • Unless otherwise approved, instrumentation and Automation shall comply with relevant

quality standards test procedures and codes of practice collectively referred to as Reference Standards including those listed below in accordance with the requirements detailed elsewhere in this specification.

BS 89-2:1990, EN 60051- 2:1989, IEC 60051-2:1984

Direct acting indicating analogue electrical measuring instruments and their accessories.

BS 1042 (Various) Measurement of fluid flow in closed conduits

BS 1646-1:1979, ISO 3511/I-1977

Symbolic representation for process measurement control functions and instrumentation. Basic requirements

BS EN 837-1:1998 Pressure gauges. Bourdon tube pressure gauges. Dimensions, metrology, requirements and testing

BS EN 60751:1996, IEC 60751:1983

Industrial platinum resistance thermometer sensors

BS 3680 (Various) Measurement of liquid flow in open channels.

BS 3693:1992 Recommendations for design of scales and indexes on analogue indicating instruments

BS EN 60770-1:2011, IEC 60770-1:1999

Transmitters for use in industrial-process control systems.

Methods for performance evaluation

BS 4675-2:1978, ISO 2954- 1975

Mechanical vibration in rotating machinery.

Requirements for instruments for measuring vibration severity

BS EN 60584-1:1996, IEC 60584-1:1995

Thermocouples. Reference tables

BS 5308 (Various) Instrumentation cables

BS EN 60529:1992 Specification for degrees of protection provided by enclosures (IP code)

BS ISO 11631:1998 Measurement of fluid flow. Methods of specifying flowmeter performance

Page 421: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

206 of 267

BS 5863-1:1984, IEC 60381 1:1982

Analogue signals for process control systems.

Specification for direct current signals

BS 5863-2:1980, IEC 60381- 2:1978

Analogue signals for process control systems.

Specification for direct voltage signals

BS EN 60654-1:1993, IEC 60654-1:1993

Industrial-process measurement and control equipment.

Operating conditions. Climatic conditions

BS 6739:1986 Code of practice for instrumentation in process control systems: installation design and practice

BS EN 60073:2002 Basic and safety principles for man-machine interface, marking and identification. Coding principles for indicators and actuators

BS 1553 (Various) Specification for graphical symbols for general Engineering

ISA-5.1-1984 - (R1992) Instrumentation Symbols and Identification

ISA-5.4-1991 Instrument Loop Diagrams

ANSI/ISA-7.0.01-1996 Quality Standard for Instrument Air

ANSI/ISA-18.1-1979 - Annunciator Sequences and Specifications

(R1992)

ISA-26-1968 Dynamic Response Testing of Process Control Instrumentation

ISA-37.1-1975 - (R1982) Electrical Transducer Nomenclature and Terminology

ISA-37.3-1982 - (R1995) Specifications and Tests for Strain Gage Pressure Transducers

ANSI/ISA-50.00.01-1975 (R2002)

Compatibility of Analog Signals for Electronic Industrial Process Instruments

ANSI/ISA-51.1-1979 - (R1993

Process Instrumentation Terminology

ISO 9000 and ISO 9004 Quality Management Systems

IEEE 60587 Power Supply Surge Protection

IEC 61131-3 Programmable Controllers-- Programming Languages

IEC 61158-2 Industrial Communication Network-Communication Protocols

BS /ISO 9075 Information technology -Structured Query Language (SQL)

BS 5515 Code of practice for Documentation of Computer Based Systems

BS 7165 Recommendation for Achievement of Quality in Software

BS EN 50081 Electromagnetic Compatibility

Page 422: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

207 of 267

ISO 3511 Symbolic representation for process measurement control functions - instrumentation

ISO-OSI Information technology - 7 Layer Communication Model

IEEE 472-1974 Surge protection.

IEC-8705101 Modbus Protocol Conversion

(b) All standards which the Bidder intends to use but which are not part of the above Standards or other listed Reference Standards, shall be submitted to the Engineer for consent before any design against that standard proceeds.

Qualification Criteria for Instrumentation and Automation System integrator

(a) Instrumentation and Automation system integrator hereinafter called system integrator(SI) shall be in possession of minimum ISO 9001, ‘Quality Management System’ certification, conferred by an accredited agency.

(b) The SI must be an authorized system integrator for the PLC hardware and SCADA and Operational Database Management Software (ODMS) manufacturer. Valid authorization certificates shall be submitted for verification.

( c) The SI shall have minimum of 10 years experience of ICA projects execution within India or outside India. It shall demonstrate capability and resources for integrating/interfacing control systems for different Original Equipment manufacturers products/system as well as coordination with multiple agencies for contract execution. References for minimum of (5) locations where the automation equipment (software & hardware) has been successfully installed, along with name, address and contact number shall be submitted.

(d) SI must have their branch in Ahmedabad/Rajkot to ensure timely after sales service.

(d) SI shall use latest technology/versions of hardware and software products/components from Instrumentation and Automation original component/original equipment manufacturers (whose products are proposed) shall be in possession of an ISO 9001 or above, ‘Quality Management System’ certification, conferred by an accredited agency.

(e) The SI must submit evidence that it employ in excess of 25 personnel, including not less than 15 technical staff (engineers, programmers, and field technicians etc). Submit the detail resume mentioning qualification and license for minimum of five professional engineers who are direct employees of the SI.

(f) All hardware and software proposed shall have been successfully in operation in a waste water application for a period of at least five (5) years and be from established and reputed OEM.

Documents to be submitted during Bid Submission

Page 423: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

208 of 267

(a) Include a complete conformance to each and every reference standards or part of the specifications. Use a chart format with specification part identified, indicate whether each part is in compliance, a deviation or an exception to the specific part. If an exception or deviation, include a narrative description as to how the deviation or exception can benefit the end-user of the system over that item specified.

(b) Provide a Schematic block diagram of the proposed system showing all major components and their interconnections and interrelationships. Label each diagram and indicate all external power and communications interfaces.

(c) Provide a written summary on operation and control philosophy of the proposed automation system, covering the principal functions and capabilities of the system’s PC, PLC’s, system communications and general system capabilities (maximum number of network nodes and I/O points, communication protocols available, etc.).

(d) Provide an equipment list with descriptive literature for the proposed system. List shall include all major hardware items, the name of the manufacturer, the quantity provided, and selected model numbers. Technical schedules for Instruments, PLC & SCADA, ODMS shall be duly filled in with relevant details.

(e) Provide an operating system and software applications list with descriptive literature for the proposed system. Include all major software items, supplier name, quantity, and model numbers. (No proprietary software shall be accepted).

(f) Information is required for:

a. Name and version of the operating system.

b. Name and version of the proposed computer Bidder graphical user interface, software package (SCADA).

c. Name and version of the PLC on-line/off-line programming software for all controllers

d. Name and version of any required communications software, firmware, etc.

e. Name and version of the specified report application software, Operational data management software(ODMS).

f. Name and version of the specified maintenance application software if any.

g. Describe how system data points are linked from the system database into various applications such as reporting or maintenance. If via DDE (Dynamic Data Exchange) describe specifically the steps required to import data automatically and on-line into the proposed software applications.

h. Briefly describe the required procedure for configuration and/or programming of the proposed system to add a simple PLC and additional I/O’s to the system in the future. Describe in detail, specifically how communications are programmed for the future remote PLC and the necessary changes required at the main controller.

i. Provide a description of any software required to program, troubleshoot or diagnose any devices in the system.

j. Provide a tentative construction schedule for completion of the project within the specified Contract period. Indicate the following activities with milestones: Mobilization,

Page 424: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

209 of 267

radio communications licensing, submittal preparation, submittal review, equipment procurement, equipment assembly, system configuration and programming, factory testing, system delivery, system installation, start up, field testing and training, and post acceptance routine service intervals.

k. Describe the SI’s provisions for service, technical assistance and replacement parts for the proposed system. Do provide the SI’s toll free number. Identify with resumes, all personnel who will be providing technical support services for the project after it is accepted.

(g) The Bidder shall provide the above required details/documents during the bid submission. Failure to do so will be treated as a non-responsive bid and lead to technical disqualification. Bidder to take note the importance of this obligation.

General Submissions

(a) The Bidder shall make submissions to the Engineer of all design drawings, schedules and complete documentation relating to instrumentation, control and Automation equipment and systems provided under this Contract.

(b) These submissions shall include, where relevant, the following:

Functional design specification

(a) The Bidder shall submit a complete functional design specification (FDS) for approval by the Engineer within 3 months of the award of contract. This document shall serve as the primary mechanism by which the Engineer may confirm that the Bidder possesses an accurate understanding of the system and its control requirements. The Bidder is encouraged to obtain clarifications and to suggest refinements to the control descriptions contained in this Specification.

(b) The FDS shall comprise an overall description of the plant, its functioning and control, and a detailed description of each section of the control system covering modes of operation, manual overrides, set-point and parameter selection and adjustment. The detailed description shall include a step-by-step control description which defines the function of each piece of equipment and each control action and interlock, including details of the program in each programmable item. Proposed SCADA screens shall form an integral part of FDS submission.

(c) The format of the program details may be chosen by the Contract, however it is suggested that this format be chosen to satisfy the requirements of the software design documentation, if applicable, as described elsewhere.

(d) The FDS shall describe the ‘fail-safe’ features incorporated into the design, for the event of failure of a plant item or system, or loss of an input signal affecting a control loop or process sequence.

(e) The FDS shall describe control actions taken and monitoring functions which remain available during a power failure, and any automatic controls or sequencing which take place during system start-up and shut-down.

Page 425: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

210 of 267

(f) The FDS shall be presented in a clear and precise manner and shall include figures or drawings where appropriate.

(g) The Bidder shall submit and obtain approval of the FDS from the Engineer before beginning the detailed control system design.

Drawings and schedules

(a) Process and instrumentation diagram shall comply with BS 1646 and BS 1553.

(b) General arrangement drawings of field-mounted instruments showing installation details.

(c) General arrangement drawings of instrument and control panels, fully dimensioned in plan and elevation views, showing foundation and fixing details, access doors, clearances, cable-entry positions, weight and lifting arrangement.

(d) Layout drawings of panel facias showing instruments, controls and details of all labels.

(e) Layout drawings of panel interior showing equipment, terminal blocks and cable ways.

(f) Annunciator arrangement and engraving details.

(g) Internal circuit and wiring diagrams for instrument and control panels.

(h) Schematic control diagrams.

(i) Instrument loop diagrams.

(j) Instrument wiring and piping diagrams.

(k) Interconnection wiring diagrams.

(l) Cable block diagrams, drawings and schedules.

(m) Instrument system and panel power distribution diagrams.

(n) Programmable-device functional design specifications which shall include hardware details, logic flow charts, ladder diagrams and program listings.

(o) Schedules of inputs to and outputs from programmable controllers and telemetry outstations.

(p) Labeling schedules.

(q) Comprehensive testing schedules for all off-site, on-site, pre-commissioning and commissioning tests and take-over tests.

(r) All other drawings necessary for the provision of ducts, openings, trenches, fixing holes for panels and the like and for the complete understanding of the operation, maintenance and extension of the system including any required for the Purchaser to dismantle, repair, maintain, modify or extend the Plant.

Data and calculations

Page 426: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

211 of 267

(a) Manufacturers’ catalogues and data sheets.

(b) Calculations to support control system design.

(c)Specification for protective coatings and painting.

Certificates

(a) Manufacturers’ works tests.

(b) Pre-installation checks.

(c) Pressure-testing schedules.

(d) Instrument loop test check sheets.

(e) Installed instrument performance tests.

(f) System tests.

(g) Statutory certificates of compliance (such as hazardous area equipment).

Operation and maintenance instructions

(a) Composite manual describing the functional and operation of each piece of equipment.

(b) Composite manual for testing and servicing every system and individual item.

Design

• Basic Features

(a) Instrumentation, Control, Automation/SCADA / HMI system shall be designed, manufactured and installed to achieve the following basic requirements:

a. to maintain the highest standards of availability, reliability and accuracy and to give clear warnings of any deterioration in performance;

b. to suit the abilities of the staff who will:

i. use the systems;

ii. Service the systems;

c. to measure, indicate, process, store and control the relevant parameters, as specified;

d. to give clear warnings of dangerous and other abnormal conditions and to initiate plant safety procedures, shutdowns and corrective measures as specified to assure the safety of ‘operations and maintenance’ personnel and plant and to store and collate the data, as required;

Page 427: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

212 of 267

e. to derive, present and utilize, as required, such additional data as required to facilitate:

i. the most efficient operation of the plant;

ii. the routine maintenance of the plant

Design Requirements for Instrumentation, Control, Automation (SCADA / HMI) Systems

(a) The instrumentation, control, automation (SCADA / HMI) installations shall fully comply with design standards, regulations and the material and workmanship requirements of the Specification.

(b) The electrical plant installations, associated instrumentation, control and automation systems shall also comply with and be tested in accordance with the latest edition of BS 7671 or equivalent Indian standards.

(c) All equipment and materials incorporated in the system shall be selected, designed and rated to operate under the defined performance duties and specified site conditions and to maintain a high level of operational reliability.

(d) The instrumentation, control and monitoring system equipment and materials shall have an operational life of not less than 15 years, unless otherwise approved by the Engineer.

Site Conditions

(a) Temperature and Humidity Range.

The equipment shall be installed in an environment having a temperature range of 0 °C to 50 °C and a maximum relative humidity of 100 % (non-condensing). The SI shall use, where required, fans, heaters, and air conditioning units to maintain a correct working temperature for his equipment. All Parts of the equipment shall be constructed of materials or treated to prevent the formation of mould, fungus or any corrosion over the temperature and relative humidity ranges specified.

(b) EMI/RFI Noise Immunity.

The equipment to be provided shall be adequately protected against interference from the use of radio transmitters, at any point external to the equipment housings and no malfunction of the equipment shall result from this cause. Responsibility for the correct and reliable operation of the equipment shall rest with the Bidder, who must ensure that the equipment is adequately protected against the ingress of radiated, mains-borne signal-borne interference.

(c) Generated Interference.

The Bidder shall ensure that the computer, instrumentation and communications equipment conforms to BS EN 50081-1or equivalent Indian Standard for noise emissions.

(d) Coordination.

Page 428: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

213 of 267

The SI shall check with other disciplines to ensure that equipment and material can be installed in space provided. Coordinate with other disciplines, to share the information necessary for them, to execute their work. Details on Drawings, which are specific, regarding dimensions, are for information purposes.

(e) Sequencing.

The SI shall make applications to the regional recognized Telecommunications Service Provider for provision of communications. SI shall coordinate with the agency/Bidder, responsible for installation of power supply services, under this contract. Applications shall be made in time, to ensure services are available for installation and commissioning of the telemetry equipment.

Enclosure/Panel Details

• Enclosures and mounting boards

(a) Enclosures shall be in any form of, board, cabinet, panel, desk, box or case used to protect, contain or group instrumentation, control equipment.

(b) All equipment in or on enclosures shall be arranged logically and, as far as possible, symmetrically, with projections kept to a minimum. Each enclosure and board shall be designed on ergonomic principles and shall permit in-situ and safe access for any normal adjustment, maintenance and servicing. The top of enclosures shall have downward slope i.e. from front to rear.

(c) Enclosures mounted for indoor application or inside buildings shall have a minimum rating of protection as IP 54.

(d) Enclosures for outdoor applications or in places where splashing may occur, shall have a minimum rating of protection as IP 65.When enclosures are to be provided for outdoor application and are located, where exposure to direct sunlight will give rise to high surface temperature rises above the manufacturer’s recommendation (normally 40°C), the enclosure shall include a sun shield fitted to the top of the enclosure. The sun shield shall prevent direct sunlight from reaching the instrumentation for the full day throughout the year, and shall have louvered ventilation.

(e) Fixing arrangements for surface-mounting enclosures shall be external to the enclosure and shall ensure that the rear face of the enclosure is not in contact with the surface to which it is fixed.

(f) Enclosures shall have hinged access doors, fitted with recessed lockable handles.

(g) Doors shall be of rigid construction and provided with close-fitting flexible seals in recesses to prevent the ingress of liquids, moisture, dust and vermin. Hinges shall be of the lift-off pattern and one hinge shall engage before the other for ease of fitting. Wherever necessary, removable access covers secured by quick-release fasteners shall be provided to ensure ease of maintenance for all installed apparatus.

(h) Mounting plates, brackets and racks shall be provided for all other internal equipment which shall be hinged or otherwise arranged with quick-release fasteners or captive

Page 429: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

214 of 267

screws to give quick and easy access to equipment, securing screws, terminals and wiring.

(i) Enclosures for two or more devices with electrical circuits shall have gland plates and terminal blocks as specified elsewhere.

(j) Each enclosure shall be designed for the safe testing and servicing of equipment with the power on. Each part which may be live under any circumstances shall be so covered or shielded as to prevent inadvertent contact.

Panel design and construction

(a) Unless otherwise specified, all instrument panels, instrument cubicles, control panels, control consoles and desks, associated equipment and terminal racks, telemetry and electronic equipment racks and the like shall be free-standing, floor mounted units and shall conform to the requirements of this part and will hereafter be referred to as panels.

(b) The design and dimensions of control consoles and desks shall be determined according to their intended function and shall be in accordance with the requirements of the Specification. The height shall not exceed 1400mm above the finished floor level.

(c) Unless otherwise specified the height of panels shall be not greater than 2130mm (overall) (excluding lifting devices) above finished floor level.

(d) Controls, switches and push-buttons shall be positioned below or adjacent to any associated indicating instrument. Panels for use in locations such as pumping stations and machinery rooms shall have anti-vibration mountings.

(e) The side, rear and front clearance of apparatus shall allow safe and unobstructed access to all terminals and to parts, requiring maintenance.

(f) Panel layout drawings shall include a list of all instruments, accessories and components contained therein. Separate schedule or bill of material of instruments, accessories and components shall be provided. The panel drawing shall display a legend of each item/component as provided in Separate schedule or bill of material.

Panels – Major

(a) Panels shall be constructed generally as specified in the preceding clause. Panel material shall be prime-quality, cold-rolled and annealed mild steel or zinc-coated mild steel sheet, suitably braced and stiffened as necessary with flat bar or angle to form a rigid structure.

(b) Panel fronts shall be flat and free from bow or ripple. Exterior corners and edges shall be rounded or welded and ground to give a smooth overall appearance.

(c) Flanged edges shall be straight and smooth.

(d) Materials shall be chosen with due regard to the panel size, number of cut-outs, instrument weight and position of center of gravity and method of fabrication, with the following minimum thickness:

a. instrument bearing surfaces, gland plates and pneumatic distribution plates; 3mm;

Page 430: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

215 of 267

b. internal mounting plates, 3mm;

c. doors, covers and filler panels, 2mm.

(e) No design involving the use of externally-visible assembly or fixing bolts and screws or any design resulting in dust or water-collecting crevices will be accepted.

(f) When a panel is constructed in sections, the sections shall be designed for ease of assembly during installation and, in any case, shall not exceed 2m in length. All necessary nuts, bolts, washers and the like shall be supplied and included in the same shipment as the relevant sections. Sections exceeding 1m in length shall be provided with double doors.

(g) Each panel shall be mounted on a self-draining base frame fabricated from 150mm deep, steel channel section which shall be drilled or provided with clamps for bolting to the floor. The base frame shall be set back from the panel front face to give a toe space of not less than 25mm. The outside of the base frame shall be covered with an approved kicking strip.

(h) Ceiling and other filler panels shall be fabricated from sheet steel and adequately stiffened. Each section shall have 50mm returned edges along all four sides and shall be braced to the main steelwork of the panel.

(i) A chequer-plate floor shall be provided inside and above the level of the base frame, having openings suitable for the bottom entry of cables when applicable.

(j) Sufficient removable un-drilled gland plates, in sections convenient for handling, shall be fitted close to the appropriate terminal blocks and not less than 230mm above the panel floor or not less than 230mm below the panel top. The gland plates shall have removable side covers giving access to both sides of the gland plate and ensuring vermin-proof and dust-proof construction. Gland plates of a surface mounted enclosure may form a part of the base or top.

(k) Panels containing instruments using a fluid as the transmission medium shall have distribution plates with bulkhead unions for the termination of internal and external pipe work.

(l) All doors shall open outwards and all doors in one panel assembly shall use the same lock and key combination.

(m) Panel design shall ensure adequate ventilation and air circulation without permitting the entry of vermin or dust. Panels installed in control rooms or other clean condition areas shall have louvers to allow air circulation. Temporary closures shall be provided to prevent the entry of dust and vermin during transit and installation. After commissioning has been completed, all entries except air circulation louvers shall be sealed.

(n) No equipment other than front-of-panel items shall be mounted on panel wall surfaces.

(o) If electrical and non-electrical instruments are mounted in the same panel, the panel shall be subdivided internally to separate the electrical and non-electrical sections.

(p) All connections shall be arranged to ensure that no accidental damage to cabling or electrical components can occur in the event of failure of any non-electrical component or connection.

Page 431: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

216 of 267

(q) Provision shall be made for safe and easy handling during transit and installation.

(r) If lifting eyes are provided, they shall be reversible and panel tops shall be reinforced where necessary.

(s) Where equipment is specified to be installed at a future date, space shall be allocated, and cutouts with removable masking plates, brackets, supports, wiring, terminals and piping and the like shall be provided.

(t) Panels shall be finish-coated at the place of manufacture before commencing the installation of apparatus and other fittings.

Panels – Minor

(a) Panels for installation on the Plant which contain relatively few items of equipment, or where so specified elsewhere, shall be classed as minor panels and shall be constructed generally as specified in the preceding clause and comply with this Clause.

(b) Panels shall be fabricated from sheet steel or other approved material less than 2.5mm thick suitably braced to form a robust and rigid structure. Exterior corners and edges shall be rounded to give a smooth overall appearance and assembly bolts, screws or rivets shall not be visible on the front face.

(c) The design shall be such as to ensure adequate ventilation and air circulation where required, without permitting the entry of vermin. Openings for cables shall be made vermin-proof. Doors shall be hinged and shall be provided with close-fitting flexible seals in recesses to prevent the ingress of liquids, moisture, dust and vermin. Unless otherwise specified, panels shall be suitable for floor mounting and shall not exceed 2130mm in height. Where wall/surface-mounted panels are provided, the fixing shall prevent the ingress of moisture and the rear of the enclosure shall be not less than 10mm from the wall.

(d) Lifting eyebolts shall be removed, issued to the Purchaser and subsequently replaced with bolts after installation.

(e) Panels shall be extensible, and symmetrically arranged as far as possible with projections kept to a minimum. Where two or more panels are fitted together, they shall form a flush-fronted continuous panel of uniform height. Front door and top cover dimensions shall match. Instruments, relays, and control devices shall be mounted at a height not more than 1800 mm and not less than 300mm from floor level.

(f) The arrangement of equipment within each enclosure shall be such as to permit easy access for installation and maintenance. No instruments, relays or other components shall be mounted on rear access doors or removable covers.

Panels – Composite

(a) In situations where space limitations preclude the use of separate instrumentation, control and automation (ICA) and switchgear panels and, at the sole discretion of the Engineer, ICA equipment may be combined within a single enclosure subject to the following conditions:

Page 432: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

217 of 267

a. The observance of all other clauses herein relating to enclosures, mounting boards and minor panels;

b. The written assurance of each supplier of ICA equipment that the proximity of the switchgear will have no detrimental effect on the life or performance of any ICA component;

c. The total segregation of ICA equipment and switchgear including the glanding and termination facilities;

d. The absence of any voltage exceeding 250V AC or 50V DC from any compartment containing ICA equipment;

e. The use of the full height of the panel (excluding the bus bar chamber and Cable space) for any ICA equipment compartment.

Panel protection

(a) Adequate facilities for isolation and protection by miniature circuit breaker or fuse for each instrumentation and control circuit and sub-circuit shall be provided and shall be so arranged that any interruption causes minimum disruption of plant, operates the appropriate alarm and cannot result in any unsafe operating condition.

(b) All fuses shall be of the cartridge pattern and main fuses shall be of the high rupturing capacity type. Fuse and solid-link carriers and bases shall be of plastic molded insulating material of an approved make. Ceramic materials will not be accepted. Live connections shall be efficiently shrouded and it shall be possible to change fuses with power on without danger of contact with live metal. The fuses shall be rated to give maximum protection to the equipment in circuit and the rating shall be permanently inscribed on the fuse label and on the fuse carrier. Unless necessary for the protection of particular equipment, miniature circuit breakers used for individual circuits in a panel or control desk shall not trip on over-voltage or under-voltage.

(c) Bases for solid links shall not be interchangeable with those for fuses. Fuses and links in the same circuit shall be mounted opposite each other in separate adjacent rows and shall not alternate in the same row. At least 10% and not less than two unallocated miniature circuit breakers or fuses and links shall be provided in each panel distribution board. Miniature circuit breakers and fuses of similar size and rating shall be of the same make and type.

(d) At least 10%, and not less than two, spare fuses and links of each rating shall be provided and fitted in clips inside the panel.

(e) Each instrument requiring a power supply shall be individually wired and protected so that, in the event of a failure in one circuit, the remainders are unaffected. Power supply circuits shall be of sufficient rating that any protective device may operate without reducing the voltage at the terminals of any other component to an unacceptable level.

5.7.7 Panel isolation

Page 433: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

218 of 267

(a) Clearly-labeled isolating circuit breakers shall be provided for each incoming power supply. Switches shall be of the quick make-and-break type with spring loaded contacts that close fully without requiring full operation of the handle. The handle and cover shall be interlocked so that the handle cannot be operated when the cover is open and the cover cannot be opened unless the switch is in the ‘off’ position. The ‘on’ and ‘off’ positions of each switch shall be indicated clearly.

(b) Circuit breakers for panel power supplies shall be mounted near an access point and in positions where they may be operated easily from a standing position.

(c) Plug-in isolating links or devices of an approved type shall be provided in any circuit that may still be live when the power supply isolators are in the ‘off’ position, as, for example, in circuits controlling equipment whose power supply is independent of the panel. Such links or devices shall be properly screened and, if not incorporated in or adjacent to their associated outgoing terminals, shall be labeled with suitable warning notices.

(d) Any item of panel equipment to which panel internal wiring is connected with a plug and socket instead of terminals shall be wired in flexible cable of adequate rating between the ‘free’ plug and a socket mounted adjacent to the device.

(e) The power supply connector shall be a socket.

5.7.8 Panel terminal blocks

(a) External wiring for panel power supplies shall be terminated on the appropriate isolator. Signal cables from strain gauges, analyzers, resistance thermometers, retransmitting slide-wires and thermocouples may be terminated at their appropriate instruments.

(b) A terminal block shall be provided as the interface between the corresponding conductors of each internal and external wire and each internal and external connection except those listed above. The terminal blocks shall be mounted vertically where possible and not nearer than 230mm to the floor or less than 230mm from an incoming cable gland.

(c) Terminal block rows shall be spaced apart by not less than 150mm and arranged to permit convenient access to wires and terminals and to enable ferrule numbers to be read without difficulty.

(d) Other circuits shall be grouped on the terminal blocks according to the classification given in the clause for ‘Panel internal wiring’ which shall be clearly marked along the corresponding section of each terminal board. Groups of different voltages on the same board shall be separated by insulated barriers.

(e) All connections shall be made from the front of terminal blocks and no live metal shall be exposed at the back. All terminal blocks shall be of the type which clamps the wire securely and without damage between two plates by means of a captive screw and which permits removal of any terminal without disturbance to adjacent terminals. Pinch-screw type terminal blocks will not be accepted. Terminal moldings shall be in melamine to BS 1322, polyamide or equivalent. Terminal rails shall be hot-dip galvanized. Current bars between the two connection points of each terminal block shall be of copper or brass with tin/lead alloy plating. All steel parts shall be zinc-plated and passivated with a yellow chromate layer. Terminal blocks for input and output analogue signals and for circuits containing volt-free contacts internal or external to the cabinet shall be of the Klippon

Page 434: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

219 of 267

type SAKC or equivalent which permit the connection of a test millimeter or continuity meter without disconnecting any wiring. Terminal blocks for power supplies for equipment external to the panel shall permit the isolation of the item of external equipment without affecting the operation of any other circuit within or outside the panel.

(f) No more than one core of external cables or two internal wires shall be connected to any terminal. If terminal blocks are used as common points for two or more circuits, individual terminals with the appropriate number of permanent cross connections shall be provided. The lengths of exposed cable cores shall be sufficient to reach any terminal in the appropriate row or rows. The cores shall be formed into a neat loom and a separate loom shall be provided for each cable.

(g) Each row of terminal blocks shall contain at least 20% spare terminals over the number required for terminating all cores of external cables in that row. Unless otherwise specified, each external cable shall contain at least 20% spare circuits, with a minimum of one spare circuit.

(h) Terminal blocks shall be numbered consecutively in a sequence different from that used for identifying wiring. The terminal numbers, voltage grouping and terminal board layout shall correspond precisely with wiring diagrams so that quick and accurate identification of wiring can be made.

(i) All the terminal boards shall be provided with covers of transparent insulating material that does not sustain combustion and shall be sectionalized where possible to give access to groups of terminals without uncovering all boards. Terminals which may be live when the panel is isolated from its main supplies shall be suitably labeled to minimize the risk of accidental contact.

5.7.9 Panel internal wiring

Panel circuits shall be segregated into the following categories:

(a) Group 1: Power control and very-high-level signal wiring (above 50V):

a. AC power supplies;

b. DC power supplies;

c. AC current signals above 50mA (such as CT circuits);

d. AC voltage and control signals above 50V (such as PT circuits).

(b) Group 2: High-level signal wiring (6V to 50VDC):

a. signals from conventional electronic transmitters and controllers (such as digital or 4mA to 20mA);

b. circuits to alarm annunciators and other solid-state devices

c. digital signals;

d. emergency shut-down and tripping circuits;

Page 435: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

220 of 267

e. on/off control circuits;

f. intrinsically safe circuits;

(c) Group 3: Low-level signal wiring (5V DC and below):

a. signals from thermocouples;

b. signals from resistance thermometers and re-transmitting slide-wires;

c. signals from analytical equipment and strain gauges.

(d) For Group 3 wiring, internal connections to the instruments shall be made by one of the following methods:

a. The twisted, screened conductors of the external cable shall be led direct to their appropriate instruments via ducting systems installed for this purpose during construction of the panel;

b. The conductors of the external cables shall be terminated on terminals segregated from all other categories and the connections to the appropriate instruments shall be made using twisted pairs with individual screening installed for this purpose during construction of the panel.

(j) Internal wiring for all circuits in Group 2 except those sharing a common connection shall be multithreaded, twisted pair, 0.75mm² minimum copper conductors with HPDE or PVC-insulated cable of adequate grade and rating.

(k) Wiring for circuits in other Groups or sharing a common connection shall be run in stranded, 1.0mm² minimum copper conductors with 250V grade, PVC-insulated cable of adequate grade and rating.

(l) Wiring sheath colors shall be black for AC circuits, and grey for DC circuits (excluding thermocouple circuits) and blue for Group 2.6 circuits. Circuits supplied at 240V, between 240V and 110V DC shall also be physically segregated from each other and from other circuits. Access to wiring and components of circuits having voltages exceeding 240V shall not be possible unless and until the circuit has been isolated.

(m) Separate ducts, trunking, cable looms, tray work and the like shall be provided within the panel for each category with at least 150mm between parallel paths of Group 1 and those of any other Group. Intrinsically-safe circuits and their terminals shall be segregated from other circuits and terminals.

(n) All wiring shall be neatly and securely fixed by insulated cleats, bunched and secured by approved plastic strapping or run in approved insulated wiring trunking or non-corrodible flexible tubing. Not more than 75% of the capacity of trunking, ducts, looming, or tubing shall be used. Insulated earth wiring shall be so arranged that access to any equipment or connection point or the removal of any item of equipment is unimpeded.

Page 436: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

221 of 267

(o) Wiring for future equipment shall be secured and terminated on terminal blocks. Lacing for wiring looms shall be of rot-proof cord or plastic strips. Inter-section wiring in multi-section cabinets shall be via a terminal block in each section.

5.7.10 Panel wiring identification and termination

(a) Identification ferrules shall be fitted at both ends of each wire. The numbers or letters used shall correspond with the appropriate wiring diagram. The ferrules shall be of plastic insulating material with permanent black characters on a color coded background for numbers and on a white background for letters, unaffected by oil or water. They shall be so arranged that they can be read logically from left to right when viewed normally.

(b) The system of wire identification shall be such that wires in the same circuit on opposite sides of a terminal shall have the same reference, and this system shall be continued through all external cabling.

(c) Terminal ferrules (spade, tongue, crimped connections) shall be provided on each conductor.

5.7.11 Panel Earthing

(a) A continuous copper earth bar of not less than 25mm x 6mm cross section shall run the full length of each panel and shall be securely fixed and bonded electrically to the main frame. The cable gland-plates and the earth bar shall be provided with suitable brass terminals of not less than 6mm diameter for connecting the metal cladding or armouring of all incoming and outgoing cables to the station earthing system.

(b) A second continuous copper earth bar of not less than 25mm % 6mm cross section, electrically isolated from the steelwork of the panel and metal cladding and armoring of cables, shall be provided for earthing the signal earth connection of each instrumentation and control device and the screen(s) of each instrument cable not earthed elsewhere to the station instrumentation earth plate. The earth bar shall have sufficient brass terminals as specified above for each instrumentation and control device and the screen of every shielded cable plus 20% spare terminals.

(c) In multi-section panels, each earth bar shall be electrically bonded to the corresponding bars in the adjacent section(s).

(d) The earth pit for instrumentation system shall be separate. Electric earth pit shall not be used for earthing of instrumentation equipment. All signal cable screens (analogue and digital) shall be terminated onto the instrument earth bar. Signal cable screens shall be earthed at the control panel end only. Screens at the field end shall be tied back and insulated.

(e) Surge Protection Device associated with the control and instrumentation system shall be earthed to the instrument earth in accordance with the SPD manufacturer’s recommendations.

Panel lighting

Page 437: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

222 of 267

(a) Each panel shall be adequately illuminated internally, as evenly and as free from dazzle as possible, by fixed fluorescent lighting controlled from totally-enclosed light switches and by totally enclosed door-operated switches positioned so as not to interfere with access. There shall also be one installed inspection lamp per three metres of panel length or part thereof with adequate flexible connection cable to reach any point in the panel. The control switch for an inspection lamp shall form part of the lamp assembly. Lighting circuits shall be fused independently of any instrumentation and control circuit and designed to allow lamps to be replaced safely and shall be fed from a distribution board and circuit breaker connected on the live side of the main panel ac supply circuit breaker.

Panel ventilation

(a) Each panel shall be provided with ventilation fans as required to ensure that equipment within the panel is maintained within manufacturer’s recommendations, with due regard to the environment in which the panel will be mounted. Fans shall be controlled by a suitably-labeled enclosed switch mounted internally in an accessible position.

(b) Fans shall be mounted with their axes horizontal and shall be arranged to draw clean air into the panel. Air entries shall have filters which can be renewed from outside the panel and shall be designed to prevent the entry of rain, spray, injurious fluids, sand or dust.

Panel labels

(a) All control gear shall be fully labeled with the KKS code identifying the equipment designation/function, all external and internal components, all rating data, detailed equipment operating data and for danger and hazard warning.

(b) Labels shall be provided for every panel to describe the duty or otherwise identify the panel and its sections and every instrument, component and item of equipment mounted internally and externally. Where applicable, front-of-panel labels shall be as detailed in the Specification. Wording shall be clear, concise and unambiguous and shall be subject to review by the Engineer before manufacture. Each label shall be permanently secured to the surface near the item to which it refers. Externally-fitted labels shall be of Perspex or other approved transparent plastic, with letters and numbers rear-engraved and filled with black.

(c) The rear surface of each Perspex label shall be finished with a coat of paint of the same colour as the panel external finish. Instrument duty labels fitted externally shall be below the item to which they refer. Embossed tape or similar adhesive labels will not be approved.

(d) Laminated materials or rear-engraved and filled plastic shall be used for internally fitted labels, which shall be white with engraved black letters.

(e) Labels conforming to the requirements of the preceding paragraphs or other approved means shall be provided:

i) to describe or identify circuits or circuit components;

ii)to identify DC polarity;

Page 438: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

223 of 267

iii) to warn or remind about dangerous or potentially-dangerous circumstances;

iv) wherever elsewhere specified.

(f) Unless otherwise specified, all engraving shall be in plain block letters, 4mm high.

(g) The minimum practicable number of different sizes shall be used.

Panel finish

(a) For control and instrument panels, desks and cubicles a hard, smooth, durable finish, free of blemishes, finish shall be provided. Before painting, all external welds and any rough areas shall be smoothed, and all surfaces shall be thoroughly cleaned and free from scale, contaminates, corrosion or grease. If rust-proof or Zintec steel has not been used in the construction, the panel shall be treated with a passivating agent such as phosphoric acid. All internal surfaces shall have a minimum of three coats of paint of which the first shall be an approved anti-rusting priming coat and the final coat shall be an opaque gloss white enamel. All external surfaces shall have not less than five coats of paint of which the first shall be an approved etch-priming coat, and the second and third suitable undercoats, all of which shall be rubbed smooth when dry before application of the next coat. The undercoats shall be easily distinguished in shade or colour from the priming and finishing coats. The two final coats shall be of stove enamel paint, gloss or semi-matt finish, to a colour and finish to be advised by the Engineer. Stoving shall be carried out in accordance with the recommendation of the paint manufacturer.

(b) The overall dry film thickness (DFT) shall be between 85 and 120 microns.

(c) Nuts, bolts, washers and other fixing devices which may have to be removed for transit or maintenance purposes shall be galvanized or otherwise finished to an approved standard.

Instruments and ancillaries

General

(a) All instruments, gauges and control equipment which perform similar duties shall be of uniform type and manufacture throughout the Works in order to facilitate maintenance and the stocking of spare parts.

(b) All equipment shall be fully tropicalised and suitable for the worst environmental operating conditions. Panel-mounted instruments shall be of the electrically operated flush mounted type and shall have damp-proof and dust-proof cases.

(c) Instruments mounted outside instrument panels shall have weatherproof and dustproof cases. Instrument cases shall be of corrosion-resistant material or finish.

(d) Instrument screws (unless forming part of a magnetic circuit) shall be of brass or bronze. Access to terminal compartments of instruments mounted outside panels or other enclosures shall not expose any working part. Moving parts and contacts shall be

Page 439: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

224 of 267

adequately protected from the ingress of dust. Where applicable instruments shall be easily withdraw able from its housing for maintenance without interrupting its signal.

(e) Unless otherwise specified, instruments shall be finished in the manufacturer’s standard colour. Instrument dials shall be of such material that no peeling or discolouration will take place with age under tropical conditions.

(f) Plant-mounted indicators and gauges shall be sized to give full legibility when viewed from a position with convenient and easy access or from the point at which any operation requiring observation of the gauge is performed. The minimum diameter for any gauge shall be 150mm except where forming part of standard instruments and accessories such as air-sets.

(g) Dials and bezels shall be of bronze and internal components shall be of stainless steel, bronze or other corrosion-resistant material.

(h) Unless otherwise specified, all functions shall be transmitted electrically and all analogue signal transmission systems shall be in accordance with BS 5863: Part 1 or equivalent and shall use a signal of digital or 4mA to 20mA DC. Where possible, measuring systems shall be designed so that any necessary power supply is taken from the appropriate instrument panel.

(i) Transmitting devices shall have integral indicators to monitor the output signal or connections suitable for use with a portable test meter, and shall be capable of meeting the performance requirements specified in the BS EN 60770-1or equivalent. For the important and critical processes the transmitting devices, such as pressure, temperature and level gauges, shall have a reference gauge installed locally for easy reference for the operation and maintenance staff.

(j) The transmitters shall be provided with LCD meters.

(k) Equipment mounted in enclosures shall be suitable for continuous operation at the maximum internal temperature possible in service, due account being taken of internally-generated heat and heat dissipated by other plant. All components shall be rated adequately and circuits shall be designed so that change of component characteristics within the manufacturers’ tolerances shall not affect the performance of plant. All equipment shall be designed to operate without forced (or fan) cooling.

(l) Equipment provided with anti-condensation heaters shall be capable of operating without damage if the heaters are left ‘on’ continuously. Unless provided with unalterable factory configured ranges, measuring instruments shall have zero and span adjustment.

(m) Field mounted instruments shall be mounted such that they are easily viewable and easily accessible for maintenance.

(n) Instruments not mounted in panels shall be supplied complete with all brackets, stands, supporting steelwork and weatherproof enclosures (separate from the instrument cases) necessary for securing them in their working positions and affording complete protection at all times including periods of servicing, adjustment, calibration and maintenance.

(o) Each installation shall incorporate a valve and pipework for obtaining a sample representative of the fluid at the position of the permanent meter and drain. If the measuring and sampling points are remote from each other, the test and sample facilities shall be provided at both points.

Page 440: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

225 of 267

(p) In order that maintenance and inspection may be carried out safely and conveniently, instruments mounted in elevated and open work areas shall be provided with safety ladders and a sufficiently sized working platform with weather shade.

5.8.2 Indicating Instruments and Meters

(a) All instruments and meters shall be flush mounted and generally of the same pattern and appearance throughout and those which perform similar duties shall be of uniform type and manufacture.

(b) Indicating instruments shall be fitted with an externally accessible zero adjuster. They shall have no parallax error and their normal maximum reading shall be approximately 60% full scale deflection.

(c) Ammeters in motor starter circuits shall be capable of withstanding the starting current and shall have a compressed overload scale. The ammeter shall have an adjustable and sealable red pointer set to indicate normal full load current. The physical size of the ammeter shall be in line with the size of the relevant starter.The minimum size to be used is 0.25 DIN.

(d) Indicating instruments shall comply with IS 1248, BS 89 or IEC 60051 and shall be of industrial grade accuracy.

(e) Kilowatt-hour meters shall comply fully with IS 722 or BS 5685 Class 2 and shall have industrial grade accuracy (±2.5%). Three element units shall be used for 3 phase 4-wire systems. Two element units shall be used for 3 phase, 3-wire systems.

5.8.3 Indicator Lights

(a) Indicator lights shall not be less than 20 mm in diameter and shall be panel mounted type with metal bodies adequately fastened so that the lamps shall be capable of replacement from the front of the apparatus without disturbance to the lamp holder or panel wiring. Lamp holder shall be keyed into panels to prevent rotation. Lens colors shall comply with BS EN 60037 as follows:

a. power ‘on’ -white*

b. running - green

c. tripped/alarm - red

d. status (open, closed, etc) - blue

e. ready to start -blue

f. warning (no imminent danger) - amber

Note: *white may be used where doubt exists as to which other colour to use.

Page 441: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

226 of 267

(b) The lights shall be under-run to give long life either by use of a resistor to limit voltage to 90% normal value or by using higher voltage lamps.

(c) The indicating lamps on control panel shall be cluster of LED's.

5.8.4 Pushbuttons

(a) Colours of pushbuttons shall generally comply with IS 6875, BSEN 60947, 60037 or IEC 60073 and in particular shall be as follows:

a. stop, emergency stop - red

b. start -green

c. jogging/inching - black

d. reset (when not also acting as a stop) - blue

e. lamp test - blue

f. override/alarm accept -yellow

5.9 Cable

5.9.1 Instrumentation cable

(a) Instrumentation cable in between conventional measuring transmitters and analogue process controllers, such as digital or 4mA to 20mA DC output from a constant-current source, (hereinafter referred to as high-level signals) shall be of polyethylene or PVC insulated with stranded conductors and laid up as twisted pairs with one twist per 50mm approx. Each cable shall have an overall screen of braided copper or mylar backed aluminium foil giving a minimum coverage of 85%, a steel wire armouring shall be insulated from the screen and from any ducting and an overall PVC sheath shall be provided. For runs exceeding 30 metres or for all inputs to a data logger, computer or microprocessor, multi-core cables shall have an individual screen of braided copper or mylar-backed aluminium foil for each signal pair. The minimum conductor size shall be 24/0.2mm but shall be of greater cross-sectional area if required for the satisfactory operation of associated plant. Cables for intrinsically safe systems shall comply with BS 5308 and the relevant certificate.

(b) Cables from strain gauges, analyzers and the like, such as 0 to 100mV (hereinafter referred to as low-level signals — see also below) shall be as specified above and shall have an individual screen for each signal pair.

(c) Cables from indicating devices to alarm or tripping circuits shall be as specified above for high level signals but shall use cables, cable trays, ducts and conduit separate from those for other high-level circuits.

(d) Cables for high-level signals, low-level signals, resistance thermometers and thermocouples shall be segregated from each other and each shall be separated from cables for power, communications and other electrical services. Other cables running in the vicinity of instrumentation cables shall be twisted at the rate of one twist per 50mm

Page 442: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

227 of 267

approximately and shall be separated from instrumentation cables by a distance of not less than 300mm.

(e) Initiating devices for plant protection and personnel safety shall be connected by individual cables directly to the tripping or safety device and shall not be routed via any intermediate junction,

marshalling box, cabinet, relay etc. The outer sheaths of such cables shall be orange coloured.

5.9.2 Telemetry cabling

(a) Telemetry cabling between a master station and an outstation, unless otherwise specified, shall consist of a minimum of 6 signal pairs, of which two pairs shall be allocated to the telemetry system, one pair shall be allocated to a speech circuit and three pairs shall be spare. Each conductor shall be multi-stranded with an equivalent diameter of not less than 0.9mm. Conductors shall be laid up in starquad formation. The dc resistance of any pair of conductors shall not exceed 88 ohms per loop mile at 10°C and the difference between the resistances of the conductors of any pair shall not exceed 0.5% of the loop resistance of that pair.

(b) Telemetry cables shall be designed for burying in water-logged ground.

(c) Conductors shall be plain annealed copper with aluminium/polythene laminate sheath moisture barrier, copper or brass tape pest barrier, single galvanised steel wire armour and overall polythene sheath. The cable shall have a solid filling of petroleum jelly.

(d) The characteristic impedance of each signal circuit shall have a nominal value of 600 ohms at 800Hz and the circuits shall be suitable for signal input levels of between −30dbm to +4dbm (0dbm = 1mW into a load of 600 ohms). The overall attenuation between the terminations of any circuit at the mean frequency of the band width specified elsewhere shall not exceed 20dbm and the attenuation at any two frequencies within this band width shall not differ by more than 6dbm. The transmission time for any two frequencies within the band width specified elsewhere shall not differ by more than 1 / (4 % B) seconds, where B is the transmission speed in bauds, as specified elsewhere.

(e) The signal-to-noise ratio within the bandwidth, specified elsewhere, shall be better than 12db. The frequency of any received signal shall not differ from the frequency of the corresponding transmitted frequency, by more than 1%, of the transmission speed in bauds, specified elsewhere.

(f) Loading coils as necessary to meet the performance requirements detailed herein shall be supplied and installed at equally-spaced points.

5.9.2.1 Fiber optic cable

(a) To facilitate the proper and efficient co-ordination of the Works the Bidder shall sublet all Cabling Works to one Sub-Bidder who has proven and successful experience in fiber optic cable installations.

Page 443: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

228 of 267

(b) If cable sizes are not indicated on Drawings or in schedules, determine the correct size based on total end to end signal attenuation not to exceed 40 dB, including all splices and termination losses, and after taking into consideration.

a. Type of fiber

b. Ambient conditions

c. Method of installation

d. The disposition of each cable relative to others

(c) All cables and wires shall be suitable for installation and continuous services in the ambient conditions described elsewhere in this document.

(d) Shop Drawings and Product Data shall be submitted for the approval of the Engineers as follows;

(e) Submit full technical details of each type of cable proposed.

(f) Submit copy of test certificates from the manufacturer or an independent testing authority confirming that cables comply with the specification.

(g) Submit exact route of the cable run and relevant Sections in the shop drawings.

(h) Each drum of cable shall be allotted a distinct and separate reference number. This number shall appear on the test certificate covering the respective length of cable and shall be clearly marked on the cable drum.

(i) The Bidder shall advise the Engineer, upon delivery to site of each drum length, quoting the reference number, the test certificates shall be handed to the Engineer for examination and approval.

(j) All cables shall be delivered to site with the manufacturer seals, labels or other proof of origin, intact. These labels and seals shall not be removed until the cable is ready to lay /use and shall be retained for, inspection by the Engineer.

(k) The Bidder shall be responsible for the off-loading and handling of the cables on site, and shall ensure that cables are delivered to site on drums and properly protected against mechanical damages.The open ends shall be sealed where lengths are cut from cables.

(l) The Bidder shall be aware of the need to supply and install all cables for this Contract which are most suitable for the prevailing environmental conditions.

(m) The cable shall comprise 8 fibers, loose tube, two fibers per tube with central 1.5 mm nominal steel central strength member, moister barrier, steel tape armored in continues lengths up to a maximum of 6.0 km or as dictated by cable joint chamber locations and route survey.

SINGLEE MODE

Type of fiber Single mode, doped silica

Core Diameter 9.0 ± 0.5 micro m

Cladding Dia 125 ± 2.0 micro m

Page 444: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

229 of 267

Coating (outer) Diameter 250 ± 15 micro m Material UV curable acrylate

Numerical aperture 0.11 micro m

Attenuation <0.4 dB/km @ 1300 nm <0.2 dB/km @ 1500 nm

Bandwidth 1000 MHz @ 1300 nm

Chromatic Dispersion 3.5 ps/nm x km @ 1300 nm 20 ps/nm x km @ 1500 nm

Operating temperature range -30 to +80 deg. C

Crush resistance >200N/cm

Weight 500 kg/km (maximum)

Tensile strength 2000 N (minimum)

MULTI MODE

Type of fiber Multi mode, doped silica

Core Diameter 62.5 ± 3.0 micro m

Cladding Diameter 125 ± 2.0 micro m

Coating (outer) Dia 250 ± 15 micro m Material UV curable acrylate

Numerical aperture 0.275 + 0.15 micro m

Attenuation <3.2 dB/km @ 1300 nm <0.9 dB/km @ 1500 nm

Bandwidth 500 Mhz x km @ 1300 nm

Operating temperature range -30 to +80 deg. C

Crush resistance >200N/cm

Weight 500 kg/km (maximum)

Tensile strength 2000 N (minimum)

INGLE MODE

5.9.3 Cable termination boxes

(a) Cable termination boxes shall have double-ended screw terminals with removable links to facilitate core isolation during testing. Each box shall contain sufficient terminals for every conductor plus 20% spare terminals. Cable termination boxes shall have cable sealing chambers and insulated glands with earthing terminals so that the armouring may be earthed or isolated from earth, as circumstances dictate.

(b) Termination boxes for use within buildings shall be of sheet steel with hinged or removable front covers. All other termination boxes shall be cast steel or heavy gauge sheet steel construction giving protection to IP55. All termination boxes shall be hot-dip

Page 445: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

230 of 267

galvanised or approved equivalent finish. Each terminal box shall have a removable, un-drilled gland plate and the Bidder shall supply and fit the requisite number of cable glands.

(c) At each cable termination box, each cable core (including spares) shall be identified by a numbered slip-over type collet. The numbering for a particular cable core shall be the same throughout its length.

(d) Cable joints shall be only at points approved by the Engineer.

(e) Each cable joint shall be of the straight-through type. The conductors shall be ferrule-jointed with the insulation maintained by heat-shrink sleeving. Joint closure shall be made with epoxy resin and the completed joint shall be impervious to water if submerged or in waterlogged ground. If cast iron joint boxes be used, they shall be provided with cable glands and, after installation and testing, shall be covered with Densomastic HD compound or equal; so that all sharp corners, bolts and projections are moulded to a smooth surface. Two lappings of Densopol grade ZN 50mm tape, or equal, shall then be applied overall. Jointing shall be carried out on each conductor, including any provided in excess of the minimum quantity specified. All materials and things of every kind required for the cabling jointing shall be provided by the Bidder.

5.9.4 Cable labeling

(a) At each end of each cable, in a uniform and visible position, a label shall be fixed on the cable to indicate the site cable number and route, and the number and size of conductors. Labels shall be made of brass, aluminium, lead or copper strip, engraved and retained by suitable non-rusting or non-corrodible binding wire passing through two fixing holes, one at either end of the label. If the cable gland is not normally visible, then the label shall be fixed inside the panel by means of screws.

(b) Three-phase power cable cores shall be identified R, Y, B or colour-coded red, yellow, blue so that the correct three-phase sequence is preserved throughout the system. Single-phase power cable cores shall be colour-coded red and black.

(c) Control cables shall have individual cores identified by means of suitable permanent ferrules bearing the same number at both ends. Core identification shall occur at every point of termination using an approved system of colour-coded ferrule markers. The size of these ferrule markers shall be such as to match the overall diameter of conductor plus insulation. Numbering shall read from the termination upwards on all cores.

(d) Each cable and core shall bear the same number at both ends of the cable and core respectively.

a. Power terminations — colour, number or letter.

b. Control terminations — letter or number or both.

5.9.5 Cable terminations

(a) All PVCSWAPVC, PVCPVC and XLPESWAPVC cables shall be terminated with mechanical glands which shall comply with BS 6121. They shall seal the inner and outer

Page 446: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

231 of 267

cable sheaths against ingress of dirt and moisture and provide adequate mechanical support. Each cable gland shall be protected by corrosion-resistant molded PVC hoods, covering the entire assembly from the overall sheath to the gland neck.

(b) Glands for armoured cables shall provide a positive armour clamp to the enclosure so that no tension is applied to the termination. The clamp shall also provide a high level of earth continuity and be of adequate size to withstand the full fault current of the system for one second.

(c) All glands shall be provided with an earthing tag. For cables of 4mm² or less, a serrated washer may be used instead for earth continuity.

(d) The cable termination and sealing equipment shall be obtained from the cable manufacturer, or other approved supplier, and shall be purpose-made for the type, size and grade of cable concerned. The application of these materials shall be strictly in accordance with the manufacturer’s instructions.

(e) Through joints shall be permitted only on long cable runs outside buildings. Where such joints are necessary; the cables shall be jointed with epoxy or acrylic resin Cold-setting compound which has been pre-measured and pre-packed ready for use.

(f) The boxes shall be of a split moulded plastic type with filling vents for compound.

(g) Bonding straps shall be fitted with armour clamps across the joint and inspected by the Engineer prior to filling the box with compound. Wrapped pressure type joints shall not be accepted.

(h) Conductor cores shall be jointed number to number or color to color.

5.9.6 Cable installation-general

(a) Cables which are to be run on walls, ceilings or other building structures shall, unless otherwise agreed by the Engineer, be secured on cable trays or enclosed in conduit or trunking.

(b) Every cable shall be neatly laid vertically or parallel to adjacent walls, beams or other structural members. Cables shall preferably not to be installed in areas of direct sunlight.

(c) Where this is unavoidable, approved sun shields shall be supplied and installed.

(d) Where the building structure incorporates purpose-built covered duct or trench systems for main cables, instrumentation cables shall be segregated and installed on tray work or otherwise secured to the sides of the duct or trench.

(e) Where the structure incorporates general service ducts or trenches containing pipe work, chemical lines and other services, all cabling shall be segregated from the other services and shall be run on the walls unless otherwise agreed by the Engineer.

(f) Cables shall be spaced to prevent interference between power and signal cables, and to avoid unnecessary crossovers.

Page 447: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

232 of 267

(g) The spacing of clips, saddles and cleats shall prevent the sagging of the cables. The method of fixing clips etc. shall be by means of non-corrodible screws inserted into wall fixings, e.g. raval plugs.

(h) Cable hangers, cleats, saddles, brackets, wall fixing and similar supporting devices shall be of an approved type and shall provide adequate strength for the cables it supports. All these wiring accessories shall be non-corrosive. Self-locking plastic buckle clips and strapping shall not be used. The arrangement and fixing of each cable shall permit the removal and replacement of any cable without disturbance to any other cable or the fixings thereof.

(i) When cables are terminated in any particular item /equipment, special care shall be taken to ensure that the cables finally approach the equipment from a common direction and are individually terminated in an orderly and symmetrical fashion.

Drawings and schedules:

(a) Block diagrams to show control cabling systems with each cable and terminal equipment being identified as in the cable schedules.

(b) Cable route and layout drawings. For those items which are underground, these drawings shall include the following:

(i) route plans and sectional views for all cable runs, cable trays, cable ducts and cable trenches;

(ii) the position of all marker posts, joints, draws pits etc.

(iii) cable schedules shall detail the cable number, type, voltage, size, route length and number of cores or pairs. Control-cable schedules shall detail the connected and spare core numbers, diagram number for connected equipment, core ferrule and terminal reference number.

Data and calculations:

(a) Manufacturers’ catalogues and data sheets for all cables and fittings. Cable sizing Calculations.

Test certificates:

(a) Routine Tests and Type Test certificates shall be submitted.

Cable trays and cable tray support

(a) Cable trays shall be perforated type and of heavy-gauge galvanized steel.

(b) Cable trays shall be installed using factory-made supports, joints and junction/bend pieces. Wherever tray and cable tray supports/sections are cut and shaped on Site, cut edges shall be dressed and painted with at least two coats of cold galvanizing compound or lead-based anti-corrosive paint.

Page 448: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

233 of 267

(c) Cable tray support systems shall be secured to walls and ceilings by pre-formed galvanized interlocking channel.

5.9.11 Flexible conduits

(a) Flexible conduit shall be of the waterproof galvanized type of PVC wire-wound type with cadmium plated mild steel couplings. Lengths of flexible conduit shall be sufficient to permit withdrawal, adjustment or movement of the equipment to which it is attached and shall have a minimum length of 300mm. Flexible conduit shall not be used as a means of providing earth continuity. A single earth conductor of adequate size shall be installed external to the conduit complete with earth terminations.

(b) Where conversion from rigid conduit to flexible metallic conduit is to be made, the rigid conduit shall terminate in a trough-type box. The flexible conduit shall extend from this box to the equipment; the earth continuity cable shall be secured to the box and to the piece of equipment. The use of lid facing screws and the like will not be permitted. Adaptors shall incorporate a grub screw or a gland to prevent the flexible conduit becoming loose.

5.9.12 PVC conduit

(a) Where galvanized conduit would be liable to corrosion, PVC conduit shall be installed.

(b) PVC conduit shall be of the oval or round high impact non-flame-propagating type as specified and self-extinguishing, to BS EN 61386-21. Surface and concealed installations shall be generally as described for steel conduit.

(c) PVC conduit fittings shall comply with BS 4607. They shall all be white unless specified otherwise.

(d) Jointing shall be carried out using PVC solvent and socketed accessories.

(e) Expansion couplers shall be fitted in straight surface runs at a distance of every 12m. The free end shall be sealed with non-setting mastic to form a waterproof seal.

(f) Purpose-made bends may be used providing that the cable bending radius is maintained. Cracked or crinkled conduit will be rejected.

(g) The conduit shall be suitable for use in ambient temperatures of between −5°C and +50°C and shall not be installed in areas that receive direct sunlight. A separate protective conductor (earth continuity conductor) shall be installed.

(h) Adaptable boxes and accessories shall be made from heat-resistant insulating material. The minimum wall thickness of boxes having a nominal internal depth of 16mm or less shall be 1.5mm. For deeper boxes, the minimum wall thickness shall be 2mm. All boxes which are intended to support luminaries or other heat sources shall have either external fixing lugs riveted to the metal inserts or utilize steel insert clips.

Cable installation methods

Page 449: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

234 of 267

General

(a) All cabling installation methods shall be subject to the approval of the Engineer.

5.10.2 Installation directly into the ground

(a) Where cables are buried in the earth, the bottom of the excavated trenches shall be freed of sharp stones and other projections and covered with sand to a depth of 50mm.

(b) Cables shall be unrolled from drums without loops and kinks, and care shall be taken when laying to avoid damage to the outer sheath by drawing over sharp projections.

(c) Cables shall be snaked into the trenches to avoid tension in the cables during backfilling or from subsequent settlement. After laying, cables shall be covered to a minimum depth of 100mm of compacted sand and shall have a layer of protective interlocking concrete cable tiles. The tiles shall be overlaid with marker tape.

(d) When cables of different voltages are laid together at the same depth, vertical cable tiles shall be used to segregate the cables.

(e) ICA and communication cables shall be laid not closer than 750 mm to high voltage cables.

(f) A sufficient number of rollers shall be provided so that the cable does not touch the ground or twist during pulling.

5.10.3 Installation in underground ducts

(a) Underground ducts shall be constructed of impact-resistant uPVC and laid at a minimum depth of 500mm (to the duct centre), surrounded by at least 75mm of sieved sand. At road crossings, Upvc ducts of minimum diameter 100mm shall be laid at a minimum depth of 1000mm (to the duct centre). The ducts shall be encased by 150mm concrete on all sides.

(b) When installing cables in ducts, the following measures shall be observed:

a. Cables shall be pulled in a straight line;

b. Rollers shall be positioned at the edges of drawpits both at the drawing-in and drawing out points over which the cables shall be drawn;

c. UPVC pipes and cable sheaths shall be coated with an approved lubricant;

d. Sufficient draw-in points shall be provided and adequate room allowed for installation of cables;

e. The pulling rope shall be guided by rollers.

f. Only one power cable shall be drawn into each duct.

(c) Whenever a duct is laid in the ground, a draw-wire shall be pulled through with at least 1000mm excess at each end and the draw-wire left in position if the duct is not to be used immediately.

Page 450: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

235 of 267

5.10.4 Sealing cable entries into buildings

(a) Whenever cables pass through walls below ground level, the point of entry shall be sealed against the ingress of water. This shall be achieved with silicone foam or similar.

(b) All cable entries into a building shall be in ducts and where the cables pass in or out of ducts, together with any spare ducts, the ducts shall be sealed against the ingress of moisture by means of duct stoppers and bituminous compounds or by any other method approved by the Engineer. The stopper shall have a fire resistance of at least 30 minutes.

5.10.5 Marking of underground cables

(a) The location of all underground cables shall be identified by:

a. Brass plates fixed to the exterior surface of all walls of buildings 300mm above ground level and directly above the point where cables pass through the wall;

b. Marker posts in road verges and the like at intervals of not more than 100m and at all junctions and changes of direction along the route;

c. Marker posts at 10m intervals within an enclosed site and at all junctions and changes of direction along the route.

(b) Marker posts shall be of concrete, not less than 200mm high above ground with an inscribed brass or enamel metal plate. The inscription shall indicate the presence of a cable below, the depth, classification and voltage rating.

(c) A drawing or sample of a typical marker post shall be submitted for the approval of the Engineer.

5.10.6 Installation in cable trunking

(a) Cable trucking shall be manufactured from mild steel of not less than 1.25mm and shall be hot-dip galvanized. The Bidder shall ensure that the size of the trunking is adequate for the number of cables to be installed together with 50% spare capacity. Trunking shall have minimum dimensions of 50mm % 50mm.

(b) Segregation of cables shall be carried out if required using continuous sheet steel barriers with the bottom edge welded to the trunking. The trunking shall have two return flanges for rigidity. Where necessary, additional strengthening straps shall be fitted internally. The cover shall overlap the trunking and be made of the same gauge. Fixing screws for covers shall be recessed and be of the self-retaining quick-fix type. All bends, tees and intersections shall be of the gusset type and shall, wherever possible, be purpose-made by the manufacturer and of a matching design to the main trunking.

(c) Cables shall be retained in the trunking when the cover is removed by means of straps. Internal connecting sleeves shall be fitted across joints in the trunking and earth continuity ensured by bonding each section of trunking to a continuous earth wire.

Page 451: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

236 of 267

(d) Non-flammable fire barriers shall be inserted where the trunking passes through walls or floors. Conduit connections to trunking shall be made by flanged couplings and male bushes.

(e) Trunking shall be supported at intervals not greater than 2m horizontally or 2.5m vertically.

(f) Crossings over expansion joints shall be made in flexible conduit.

(g) Should it be necessary to cut or drill a section of trunking, the bared ends shall immediately be given a coat of zinc-rich cold galvanizing paint.

(h) Cable and trunking runs shall be determined by the Bidder and agreed by the Engineer before any work is started. The run shall be at least 150mm clear of plumbing and mechanical services.

(i) Trunking systems erected outside a building shall be weatherproof.

5.10.7 Installation in troughs and trenches

(a) Where the building structure incorporates purpose-built covered trench systems, power distribution cables may be laid on the floor of the trench. Control and instrumentation cables shall be segregated and installed on supporting steelwork or cable trays secured to the walls of the trench.

(b) Where the building structure incorporates general service trenches containing pipework, chemical lines and other services, all cabling shall be segregated from other services and run on the trench walls. Crossovers shall be kept to a minimum and cabling shall be taken above wet service pipe work.

(c) Cable trays shall be of perforated steel with formed flanges and of minimum thickness not less than 1mm for trays up to 100mm width, not less than 1.25mm for trays from 100mm to 150mm width and not less than 1.5mm thickness for trays from 150mm to 300mm width.

(d) Cable-tray supports shall be of sufficient strength to maintain rigid support to the fully-laden cable tray along its entire length. All brackets and tray work shall be suitable for withstanding a temporary weight of 125kg.

(e) Wherever possible, cable trays shall be installed in full lengths without cutting.

(f) Should it be necessary to cut or drill a length of tray, the bared ends shall be dressed and immediately be given a coat of zinc-rich cold galvanizing paint. Similarly for PVC-coated trays, the bared end shall be immediately sprayed using a PVC aerosol.

(g) All cables shall be firmly secured to the tray using purpose-made saddles, as approved by the Engineer, together with proprietary cable cleats.

5.10.8 Installation in buildings

Page 452: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

237 of 267

(a) Cables required to be run on walls, ceilings, or other structures shall be carried on substantial cleats, either in groups or simply at spacings determined by rating requirements, supported on tray or ladder racks or enclosed in conduit or trunking.

(b) All cables shall be neatly run vertically or parallel to adjacent walls, beams or other structural members.

(c) The spacing of clips, saddles and cleats shall be such as to prevent the sagging of the cables during their installed life. The method of fixing clips and the like shall be by means of no corrodible screws inserted into approved wall fixings.

(d) Cable hangers, cleats, saddles, brackets and similar supporting devices shall be of an approved type and of adequate strength for the cables they are supporting. They shall be treated to withstand site conditions without corroding. Self-locking plastic buckle clips and strapping shall not be used.

(e) Hangers shall be spaced according to recommendations in the IEE Wiring Regulations. Allowance shall be made for expansion and contraction of the cables.

(f) Cables shall be located between 50mm pegs spaced at 40mm centers across a rung so that a 40mm or 80mm space is maintained between cable centers. Cleats shall be used where the ladder racking is vertical.

(g) Cables shall be run at least 150mm clear of plumbing and below heating and hot water pipe work.

5.10.9 Cable installation in conduits

(a) Conduits shall be either galvanised heavy-gauge steel screwed type or light-gauge steel no screwed type, steel or PVC. Accessories shall either be malleable cast iron or pressed steel.

(b) A space factor of 40% shall not be exceeded and, in any case, conduit shall have a minimum diameter of 20mm. The tubing is to be perfectly smooth inside and out and free from imperfections. Both ends of every length of tubing shall be reamed and all sharp edges removed before erection.

(c) Where conduits converge, adaptor boxes shall be used. Conduits shall be connected by means of male brass bushes and couplings. Where conduits are greater than 25mm diameter, straight through joint boxes shall be of the trough type. Where conduit or fittings are attached to equipment casings, the material of the casing shall be tapped for a depth of not less than 10mm or male bushes and flanged couplings may be used

(d) Hexagonal lock nuts shall be used at running joints. They shall seat firmly and evenly on to mating faces. All function boxes, draw-in boxes, and inspection fittings shall be placed so that the cables can be inspected, withdrawn and re-wired during the life of the installation.

(e) Generally not more than two bends or offsets or one coupling will be permitted without a suitable inspection accessory. Fish wires shall not be left in conduits during erection. The whole of the installation shall be arranged for a loop-in type of system with joints being carried out at switches, isolators or appliance fittings.

Page 453: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

238 of 267

(f) Ends of conduits which are liable to be left open for any length of time during building operations shall be plugged to prevent the ingress of dirt and covers shall be fitted on all boxes.

(g) Generally, conduits shall not cross expansion joints of buildings. Where they cannot be installed in any other manner, a galvanised flexible conduit shall be used across the expansion joint. A total of 150mm movement shall be allowed.

Process Instrumentation

General

(a) Instrumentation system shall be designed, manufactured, installed and tested to ensure the high standards of operational reliability. All electronic components shall be adequately rated and circuits shall be designed so that change of component characteristics shall not affect plant operation.

(b) All instrumentation equipment shall be new, of proven design, reputed make, and shall be suitable for continuous operation. Unless otherwise specified, all instruments shall be tropicalised. The outdoor equipments shall be designed to withstand tropical rain. Wherever necessary space heaters, dust and water proof cabinets shall be provided. Instruments offered shall be complete with all the necessary mounting accessories.

(c) Electronic instruments shall utilize solid state electronic components, integrated circuits, microprocessors, etc., and shall be of proven design.

(d) No custom made hybrid type integrated circuits shall be used.

(e) Unless otherwise stated, overall accuracy of all measurement systems shall be ±1% of measured value, and repeatability shall be ±0.5%.

(f) Unless otherwise specified, the normal working range of all indicating instruments shall be between 30% and 80% of the full scale range.

(g) On resumption of the supply following a power failure the instruments and associated equipment shall start working automatically.

(h) The instruments shall be designed to permit maximum interchangeability of parts and ease of access during inspection and maintenance.

(i) Unless otherwise stated, field mounted electrical and electronic instruments shall have minimum ingress protection as IP-66.

(j) The instruments shall be designed to work at the temperature, humidity, and chlorine contamination that may prevail at site. Instrument enclosure shall have corrosion–resistant properties.

(k) Enclosures of all the field instruments shall have locking arrangement.

(l) All field instruments, and cabinets/panel mounted instruments shall have tag plates/name plates permanently attached to them. Details of proposed inscriptions shall be submitted to the Employer for approval before any labels are manufactured.

Page 454: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

239 of 267

(m) All coated parts of sensors shall be made out of non-corrosive material capable of working against chlorine content up to 5 ppm.

(n) For all field instruments, surge protection devices (SPD) shall be provided at both ends of the connecting cable for protection against static discharges / lightning and electromagnetic interference.

(o) Individual pair screened, overall screened, armoured cables shall be used for analogue signals and armoured, overall screened cable shall be used for digital signal cables.

Flow Measuring Systems

(a) Flow measuring system shall consist of flow sensor / transducers, flow transmitter and flow computer.

(b) Flow transducers shall be rugged in construction and shall be suitable for continuous operation. Flow transducers shall have waste waterproof construction and shall be suitable for installation in underground /above ground pipelines.

(c) To avoid the effects of disturbances in the velocity profile, a straight and an uninterrupted run, on upstream as well as on downstream side of the location of the flow sensor/transducer shall be provided in accordance with the recommendations of the flow meter manufacturer.

(d) The flow transmitter shall be suitable for field or panel mounting. It shall process the input signal and provide 4-20 mA DC and RS 485 output signal with open bus protocol, proportional to flow rate. The flow range shall be adjustable.

(e) A zero span adjustment facility shall be provided for flow transmitter and indicator.

(f) Within given limits, flow measurement shall not be affected by physical properties of sewage viz., temperature, pressure, viscosity, density etc. Bidder shall provide compensating electronic circuits if required. The overall accuracy of flow measuring systems shall be at least ±1.0 % of the measured value unless otherwise stated.

Open Channel Flow meter

(a) Open channel flow measuring systems shall consist of level transducer, flow transmitter cum flow computer. The level of the fluid in the flume shall be measured by the ultrasonic level transducer. The flow measurement shall be take help of physical characteristics of the flume.

(b) The level transducer shall be suitable for flange or bracket mounting as per site requirement and shall have minimum ingress protection as IP66. It shall have ambient temperature compensation and adjustable datum setting facilities.

(c) The design and application of ultrasonic level transmitters shall take into account the flume/channel physical dimensions, construction details, process fluid, the presence of foam, granules, size etc.

Page 455: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

240 of 267

(d) The installation shall avoid any degradation of performance from spurious reflections, absorption, sound velocity variations, sensor detection area, temperature fluctuations, specific gravity changes and condensation. For application where spurious reflections are unavoidable the control unit shall be provided with facilities for spurious reflection rejection.

(e) The arrangement required for supporting the level sensor e.g. platform, railings etc shall be in the Bidder’s scope.

Level Measuring System

(a) Ultrasonic Level Meters

a. Ultrasonic level measuring devices applied for fluid level measurement shall comprise a transducer, transmitter and remote indicator.

b. The transducer shall be suitable for flange or bracket mounting as per site requirement and shall have an ingress protection as IP 65. It shall have ambient temperature compensation and adjustable datum setting, facilities.

c. The accuracy of the sensor shall be ±0.25% of the measurement or better.

d. It shall have an integral programming keyboard and shall provide a digital display of the measured variable. It shall be provided with diagnosis facilities and shall provide an isolated 4 to 20 mA DC and RS 485 output signal with open bus protocol, proportional to the range of measurement.

e. The design and application of ultrasonic level meters shall take into account the vessel or channel construction, the material, size, shape, environment, process fluid or material, the presence of foam, granules, size etc.

f. The installation shall avoid any degradation of performance from spurious reflections, absorption, sound velocity variations, sensor detection area, temperature fluctuations, specific gravity changes and condensation. For applications where spurious reflections are unavoidable the control unit shall be provided with facilities for spurious reflection rejection.

g. If turbulence exists, shielding, stilling tubes, still well or other measures shall be provided to avoid its effects on the measurement.

Conductivity Level Switches

(a) The electrodes used for conductivity level switches shall be stainless steel. Single electrode systems (one electrode per holder) shall be used (except where their use is impractical) with insulated electrodes such that only the tip of each electrode is exposed to the liquid at the operating level.

(b) Relay or control units operating with level electrodes shall have adjustable sensitivity. Electrodes for use in fluids of low or variable conductivity shall be fitted with conductivity discs.

Page 456: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

241 of 267

(c) Where relay or control units are not mounted in control panels, they shall be provided with surface mounting enclosures with a degree of protection as IP 52 for indoor location and IP 65 for outdoor location.

Pressure gauges and transmitters

(a) Pressure gauges shall comply with BS EN 837-1 or equivalent and have concentric scales. For especially arduous duty where the gauge is subject to pressure pulsations and/or vibration, it shall be provided with a glycerin-filled dial and line snubbers shall be used. Bourdon-tube type differential-pressure gauges shall be capable of withstanding full line pressure on any side with the other side vented to atmosphere without damage to or effect on the calibration. No plastic material shall be used in their construction. Internal parts shall be of stainless steel, bronze or approved corrosion-resistant material.

(b) The minimum diameter for round pressure gauges shall be 100mm unless specified otherwise or where the gauge forms part of a standard item of equipment.

(c) Unless specified elsewhere the accuracy for pressure gauges shall be 1% of range, for diaphragm gauges and for differential gauges 1.5% of range or better.

(d) Where compensation of more than 2% of the instrument span is needed for the difference in level between the instrument and the tapping point, the reading shall be suitably adjusted and the amount of compensation shall be marked on the dial.

(e) The zero and span of a pressure transmitter shall not change by more than 0.1% of the span per Celsius degree change in ambient temperature. After application for 10 minutes of pressure at 130% of maximum pressure, the change in zero and span shall not exceed 0.1% of the span.

(f) Pressure transmitters shall have an accuracy typically better than 0.1% of span, depending on the application and shall be protected to BS EN 60529: IP 65 standard or higher standard. For transmitters installed in meter chambers liable to flooding or underwater applications, they shall be to BS EN 60529: IP 68 standard and shall operate up to maximum submergence of 20 metres of water.

(g) Pressure transmitters shall provide a digital or 4mA to 20mA DC output proportional to the pressure range.

(h) Pressure gauges and transmitters shall have primary isolating valves, 2 or 3 way valve manifold and vents, in such a way that it has the facility to calibrate the gauges or transmitters without removal.

5.11.6 Strain-gauge pressure transducers and transmitters

(a) Strain-gauge pressure transducers shall use thin film sensors without bonding.

(b) Each instrument housing shall be of all-welded Grade X 4 CrNiMo 17 12 2 stainless steel or equivalent and hermetically sealed. Non-interacting, zero and span adjustments shall be provided on each transducer. The measuring diaphragm shall be isolated from the process fluid by a no corrodible barrier diaphragm. The mean time between failure for

Page 457: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

242 of 267

any model of strain-gauge transducer shall be not less than 15 years, and the performance of the measurement system shall be as given below, or higher performance:

a. accuracy: ±0.1% of calibrated span, including linearity

b. hysteresis and repeatability;

c. repeatability: ±0.05% at maximum span;

d. stability: ±0.1% of upper range limit over 6−month period;

e. over-pressure: sustain a 400% over-pressure without damage;

f. RFI / EMI effect: less than 1% of span with 500MHz at 5W direct contact; power-supply variation effect: 0.01% per volt variation.

g. load variation effect: ±0.0002% per ohm of loop-resistance variation.

h. temperature: −29°C to +82°C range; total thermal error of ±0.75% of span over 0°C to 50°C; i. protection: IP 65.

(c) Strain-gauge transducers which do not have terminals for their cable connection, shall have integral sealed-cable assemblies, installed in conduit and terminated at weatherproof junction boxes, protected to IP 65 each mounted near to its associated process transmitter. A digital or

4mA to 20mA dc output signal proportional to the transducer range shall be provided.

(d) Strain-gauge pressure transmitters shall be generally as the transducer except that it shall incorporate a waterproof pressure transmitter producing a digital or 4mA to 20mA output signal.

(e) Provision for transducer venting shall be provided.

Analytical Analyzers and Transmitters

General:

a. This section covers individual elements to measure and transmit pH. Transmitters shall convert the sensor measurement to a 4 to 20 mA dc signal capable of transmission into at least a 500 ohm load at 50 V or less. Power supply shall be 240 Vac, 50 Hz. Reference accuracy of the output signal shall be ± 1 percent of measured span or better. Output signal shall be electronically isolated from ground to permit connection to a receiver with a grounded input. Transmitters shall be provided with an indicating scale having at least a 0.1 meter calibrated length. Operating ambient temperature shall be -5 to + 50 degree C or better. Transmitted signals shall be linear with the measured variable excepting pH which shall be linear with pH.

(b) Sensor Measurement Principles and Features:

a. Each type of sensor shall use the measuring principle and incorporate the features appropriate to it as specified below:

Page 458: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

243 of 267

i. pH sensors shall measure hydrogen ion activity and oxidation-reduction potential respectively in the process medium. The pH sensor shall consist of a glass measuring electrode, a reference electrode, a solution ground and a temperature sensor for compensation in the transmitter. The reference electrode shall be the non flowing type with an electrolyte diffusion rate through a non-reactive porous membrane or plug which shall not require electrolyte refill more often than once per year. ORP sensors shall use the same elements specified for pH sensors except that electrode shall be platinum and no temperature compensation is required. pH and ORP sensor assemblies shall incorporate an integrally mounted preamplifier for the measuring electrode. Sensors shall operate over a temperature range of -5 to + 100 Degree Celsius or better.

(c) Construction

a. Transmitter and sensor enclosures shall be rated NEMA 4 unless explosion proof (XP) is specified on the Schedule. Enclosure materials and finish shall be as specified in the Schedule. If not so specified, they may be the manufacturer's standard which is compatible with the corrosivity of the atmosphere normally in contact with the enclosure. All parts of sensors, their assemblies and supporting parts which are wetted by the process medium shall be constructed of stainless steel and/or plastic unless specified otherwise on the Schedule. When specified on the Schedule, pH assemblies shall be provided with integrally mounted ultrasonic cleaners.

5.11.8 Total Dissolved Oxygen Monitoring System

(a) The Dissolved Oxygen (D.O) monitoring system shall consist of a sensor, transmitter, indicating converter and electrode cleaning equipment. Accuracy shall be + 0.5% full scale for DO, barometric pressure + 0.27 kPa and temperature + 0.3Degree Celsius.

(b) The sensor shall not require zero point calibration and shall last approximately 2 years with a DO level of 3-5 mg/l and 3-5 years with a DO level of 1-2 mg/l. The transmitter shall allow the DO sensor to be fitted without the use of tools. The transmitter shall deliver an output signal proportional to the DO level and measured temperature. The following alarms shall be detected and transmitted.

a. Membrane puncture

b. Depleted or worn out DO sensor

c. System/electronic fault.

(c) The indicating converter shall perform auto calibration of the system and compensate for sensor age, temperature, barometric pressure, relative humidity and liquid salinity. It shall display OD concentration, temperature, sensor balance lifetime (mg/l x hours or %) and rh selected for calibration.

(d) Construction. The DO sensor shall consist of a prefabricated, disposable, sealed cartridge that slides easily into the transmitter without special tools. Systems that require re-generation (refill of electrolyte and membrane change) will not be acceptable. The sensor shall use the Clark’s principle, with a gold cathode, silver wire anode and a non toxic electrolyte of potassium chloride. The pre-stressed membrane shall be of Teflon and bonded onto the DO sensor.

Page 459: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

244 of 267

(e) The transmitter shall be protected to IP 67 and supplied with 6m of cable for connection to a junction box. The converter shall be housed in a NEMA 4 x enclosure and be mounted on handrail or panel up to 200m from the sensor. It shall be interchangeable without the need for recalibration or reprogramming of the system by using a sensor specific storing device continuing all settings and calibration.

(f) The sensor and transmitter shall be installed in a self cleaning polystyrene ball float, which shall float on the surface of the water and allow the sensor to be inserted by approximately 125mm into the water. The ball shall be constructed to fit the sensor and transmitter and leave a smooth surface to prevent accumulation of dirt or grease. Constructions where the sensor protrudes will not be acceptable.

Surge Protection Devices

(a) Surge protection devices (SPDs) shall be suitable for withstanding the surge arising out of high energy static discharge / lightning strikes and protect the instrument to which it is connected against damage. SPDs shall provide protection through the use of quick acting semiconductors like Tranzorb, zener diodes; varistors and an automatic disconnect and reset circuit. SPDs shall be passive and shall require negligible power for operation. During the occurrence of a surge it shall clamp on the allowable voltage and pass the excess voltage to the ground. The SPD shall be self resetting to minimize the down time of the measurement loop.

(b) SPD s shall be provided to protect devices transmitting and receiving analogue and digital signals derived from outdoor field instrumentation.

(c) The surge protection device shall be rated for surge rating of 10 KA.

Programmable Logic Controllers

General

(a) Programmable Logic Controllers (PLC) shall be provided as a Hot Stand-by Controller to perform combinational and sequential logic functions, status monitoring and report functions with counter and timer facilities. The entire STP shall be designed in a way to facilitate complete automatic mode of control via PLC based SCADA systems.

(b) PLC shall comprise of necessary processors, Simplex input/output (I/O) modules, communication interface modules and Human-Machine Interface (HMI) required performing the desired functions.

(c) PLC shall have the following attributes as a Hot Stand-by Controller.

a. carry out sequential logic implementation for operations of plant;

b. carry out computation and interfacing for data acquisition, data storage and retrieval;

c. it shall accept downloaded program from a programmer;

d. it shall have different functional modules to perform the desired functions;

e. it shall scan the inputs in time cycles and update the status of its outputs.

Page 460: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

245 of 267

(d) The PLC system shall be expandable, OPC Compatible and shall be modular in construction, so as to be capable of future expansion without hardware modifications.

(e) PLC s shall be microprocessor based. PLC s shall use standard known protocols and structures for communication outside the system.

(f) In case of system failure or power supply failure the outputs shall attain a predetermined fail safe condition (this shall normally be ‘off’).

(g) The PLC used shall have a proven record in the type of application concerned and in the prevailing environmental conditions.

(h) PLC shall be of an approved type from a major international manufacturer.

(i) PLC System (Panel) should be housed in a dust free environment.

PLC Coding

(a) The Bidder/SI shall supply, install, program and commission the PLC using the PLC manufacturer recommended windows based, PLC code and documentation software. The PLC code shall be structured as per best industry standard and shall have comprehensive sub-routine and rung annotation. PLC shall be coded using FBD language.

(b) The Bidder/SI shall provide a suitable PC complete with PLC code and documentation software as specified in the bid document & as agreed with the Employer representative based on the FDS submitted.

HMI (Human Machine Interface)/SCADA

General

(a) The HMI shall be suitable for day to day operation by non-computer literate personnel in the monitoring and operation of the treatment works.

Human Machine Interfaces (HMI)

(a) Human Machine Interface (HMI) shall be provided at Monitoring Room.

(b) The SCADA system shall provide efficient and safe operation of the process plant by detection of alarm and error conditions, to alert the Bidder to these conditions by both visual and audible alarm, to monitor all important system parameters and providing facilities for plant optimization. The system will allow Bidders, technicians and engineers to issue commands to change system parameters, start and stop equipment, provide configuration tools and operate diagnostic facilities from Bidder Workstations (OW) and Engineering workstation (EW), after successful log-on by security password.

(c) The System shall perform all the necessary functions for the optimum monitoring, control and operation of the entire system.

(d) The HMI shall be constructed to a high standard to provide a high profile feature and focal point for visitors to the Sewage Treatment Plant (STP).

Page 461: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

246 of 267

(e) SCADA/HMI system shall be housed in an air-conditioned environment.

Uninterruptible Power Supply (UPS)

(a) The power for Programmable Logic Controllers (PLC) and Supervisory Control and Data Acquisition (SCADA/HMI) shall be derived from independent UPS.

(b) The UPS provided shall be sized to provide power to maintain system operation for a period of minimum 1 hour, in case of power failure.

© The above feature should be demonstrated during Factory Acceptance Test (FAT) & Site Acceptance Test (SAT).

Schedule of preferred makes for Instrumentation and Automation Equipments

(a) Pressure Gauge Altop Industries /Aadarsh Industries /WAAREE Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(b) Pressure Transmitter

Siemens /Forbes Marshall Pvt. Ltd / Endress + Houser Pvt. Ltd / Klay Instruments B.V. / Precision Instrument Co. Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

© Float level switch ABS/ITT/SBEM Pvt.Ltd. Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(d) Ultrasonic Level Transmitter

ABB/ Endress + Houser Pvt. Ltd /Nivo Control Pvt. Ltd./SBEM Pvt. Ltd./Siemens Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(e) Magnetic Flow Meter

ABB/ Endress + Houser Pvt. Ltd /Nivo Control Pvt. Ltd. / Forbes Marshal /Siemens. Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(f) Ultrasonic Flow Transmitter

ABB/ Endress + Houser Pvt. Ltd /Nivo Control Pvt. Ltd./Forbes Marshal /Siemens Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(g) PLC ABB/LARSEN &TOUBRO/Schneider Electric/Siemens Other

Page 462: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

247 of 267

equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

(h) Analytical Instrument

Endress + Houser Pvt. Ltd/HACH instrument Other equivalent national & international standard makes as per relevant BIS, BS & AWWA standard and IS standard as may be approved by the engineer-in-charge

Page 463: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

248 of 267

TRAINING AFTER COMMISSIONING & DEFECT LIABILITY PERIOD

22 TRAINING OF OWNER'S PERSONNEL The Operator shall be responsible to provide practical training in all aspects of the operation,

maintenance, and facilities to all personnel selected by the Owner, who will ultimately be responsible for the operation, maintenance and repair of the system and its facilities after5 year O&M..

For this purpose, the Operator shall provide a comprehensive training program for the Owner’s personnel during the period of the O&M, and for as long as may be reasonably required to ensure that the designated personnel are adequately trained to take up their responsibilities.

All costs for the Operator’s personnel and the training facilities required for the training during O &M period, and any incidental training expenses, shall be borne by the Operator.

23 TRIAL RUN OF THE SYSTEM

After commissioning of works, the Operator shall maintain the works for 3 (three) months to demonstrate satisfactory performance to the Design Build Operations Engineer prior to taking over by the Owner. The cost of electricity, if required for operation & maintenance of works during the period of this trial run will be borne by the Owner. The cost towards Operator’s Engineer and other operating personnel during the said period of trial run, along with cost of tools and spare parts which are required for operation and maintenance of the works and equipment during the trial run period shall be borne by the Operator and shall be included in the quoted bid price. In the event that the system or any of the facilities do not satisfactorily achieve the required performance standards during this period, the trial run period shall be extended until such time as the Operator has satisfactorily rectified any deficiencies as may be necessary to satisfy the performance requirements. No additional compensation will be paid to the Operator for such extension

Page 464: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

249 of 267

ENVIRONMENTAL MANAGEMENT MEASURES

The EIA and EMP is to be adhered during construction and Operation and maintenance period by the Bidder

Environmental Assessment

1. Objectives & Need

Objectives of this assignment are to: • Establish the environmental baseline in the study area; • Identify and assess the adverse environmental impacts; and provide requisite measures to

address these impacts; • Identify the opportunities for environmental enhancements in the project area and provide

requisite guidance/plans in this regard; • Wherever relevant integrate the measures (mitigation and enhancement related) in the

project planning and design; and • Develop appropriate management plans and codes of practices for implementing,

monitoring and reporting of the environmental mitigation and enhancement measures suggested.

The EA shall be carried out in line with the Government of India (GoI)’s regulations (EIA Notification). The EA comprises: Environmental Screening, Project EA and the Environmental Management Plans (EMPs).The EA shall be carried out in a consultative manner through “Stakeholder Consultations”, at various stages, with the affected communities, NGOs, selected government agencies and other stakeholders.

2. Scope of Work

The following are the tasks to be performed by the Bidder while conducting Environmental Assessment for the STP including nature, scale and magnitude of impacts that the project is likely to cause on environment.

A. Description of Project

A succinct description of the proposed project shall be provided.

B. Review of Earlier Studies if any

The Bidder shall review various earlier studies if any available such as feasibility and detailed project reports, etc., of the project and understand the project and various aspects associated with the same. This shall provide a base to formulate the environmental surveys necessary for the project and assessing impacts of the same.

C. Legislative and Regulatory Considerations

A review of the legal and regulatory provisions applicable for the project shall be carried out in this task. The objective of the review is to bring out the legal and policy issues to be addressed in

Page 465: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

250 of 267

the project at various stages of project development such as design, execution and operation. Also the Bidder should review the environmental laws such as EP Act, Water Act, Air Act, as well as the applicable operational policies / directives of The World Bank. Besides, the Bidder shall also provide a complete list of regulatory formalities required for the project and various clearances required from different regulatory agencies.

D. Preparation of Environmental Profile

An environmental profile of the project influence area shall be prepared, based on appropriate primary & secondary surveys and field investigations. The objective of this profile is to establish existing environmental conditions of the project area, in terms of air, water (surface & ground), noise, soil and other environmental parameters, which should form the basis for prediction of impacts due to proposed project activities. As part of this, the environmentally sensitive land uses (protected natural areas, areas of ecological value, sensitive receptors like schools, hospitals etc.) would also be identified and plotted on a map to scale.

The extent and duration of surveys shall be judiciously decided by the Bidder as per requirements of the environmental regulations applicable in India and guidelines of international funding agencies. The profile prepared shall be adequate enough to predict impacts of the project and shall cater to the requirements of obtaining necessary environmental clearances from the authorities.

The profile shall essentially include all physical, ecological and socio-economic components of the project environment and bring out the salient and sensitive features of the same. Important aspects such as reserve forests, national parks, major water bodies, structures of archaeological / historic importance, and other environmental resources (if any) shall be identified and salient features of the same shall be presented.

E. Determination of Potential Impacts

Based on the environmental profile of the project area prepared above and the proposed project activities discussed under task 1, the Bidder shall carry out environmental screening to determine the nature of impacts and level of Environmental Assessment to be carried out .

In case of low or insignificant level of environmental impacts, where an EMP will suffice, the Bidder shall review the recent versions of generic EMPs available with Governmental agencies and carry out necessary changes to suit the project requirements.

As part of screening, if medium to high impacts, requiring a detailed EA and stand alone EMP is required, the Bidder shall carry out detailed impact analysis. The Bidder shall predict environmental impacts of the project components, activities and sub-activities on various environmental attributes (bio, geo and physical) through appropriate analytical tools and techniques such as modeling techniques, over lays, etc. Significant or insignificant, permanent or

Page 466: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

251 of 267

temporary, reversible or irreversible, negative or positive impacts shall be categorised separately and presented for each phase of project development.

All identified impacts shall be summarized in an easily understandable format and the magnitude and significance of each impact shall be explained in detail.

An analysis of various project alternatives, including the ‘Project’ and ‘No Project’ scenario shall be analysed and impacts shall be analysed for each scenario. Based on the above analysis the best alternative that causes minimum or no impact shall be recommended for implementation.

F: Social Assessment

Magnitude of social impacts if any, due to loss of land, structures, income, livelihood etc shall be assessed ,Significant findings of census and social economic survey of PAPs along with a brief account of proposed mitigation measures using the ESF guidelines, budget shall be brought out in the report. Institutional arrangements with resettlement implementation plan shall be provided where required.

G. Stakeholder Consultations

The Bidder shall carry out consultations with Experts, NGOs, forest department officials (if applicable) and other selected Government Agencies and other stakeholders to (a) collect baseline information, (b) obtain a better understanding of the potential impacts and (c) appreciate the perspectives/concerns of the stakeholders, and (d) secure their active involvement during subsequent stages of the project as appropriate .

Consultations shall be preceded by a systematic stakeholder analysis, which would (a) identify the individual or stakeholder groups relevant to the project and to environmental issues, (b) include expert opinion and inputs, (c) determine the nature and scope of consultation with each type of stakeholders, and (d) determine the tools to be used in contacting and consulting each type of stakeholders.

A systematic consultation plan with attendant schedules will be prepared for subsequent stages of project preparation as well as implementation and operation, as required. Where community consensus is required in respect of proposed mitigation measures for impacts on community assets including water bodies, places of worships etc., specific plan for modification/relocation etc have to be disclosed and consensus obtained.

H. Environmental Management Plan

The Bidder using outputs of the above tasks shall prepare an implementable Environmental Management Plan (EMP) for the project. Preparation of Environmental Management Plan is detailed below.

3. Environmental Management Plan

Page 467: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

252 of 267

The EMP should suggest ways / options for mitigating negative impacts of the project, the preventive measures necessary. Where required, EMP shall include community consensus for the mitigation measures proposed. The EMP shall identify the means / agency responsible for implementation of the same and recommend suitable monitoring mechanism for the EMP. The EMP shall be implemented fully by the Bidder.

The above referred activity shall be applicable for Generic EMPs as well as specific EMPs developed as an outcome of detailed EAs. The Bidder shall prepare a detailed EMP covering the measures to mitigate and/or minimize the negative impacts, including the implementation arrangement and a monitoring plan for the same with site specific requirements. EMP shall cover the following details:

(a) Mitigatory measures: For each of the significant negative impact the Bidder should recommend measures to eliminate or mitigate the impact. In case any impact is non-mitigable, the cost of damage shall be estimated. The cost (capital and recurring) of all the mitigation measures and the responsible parties for implementation should be clearly identified. The mitigatory measures should necessarily contain conceptual designs wherever necessary. The Bidder should also specify neighborhood committees to supervise effective implementation of the proposed mitigatory measures.

(b) Landscape plan: Wherever necessary (especially STP sites), the Landscaping plan should be prepared considering the project area as a whole and shall meet project specific requirements. Considering the nature of the project area, the EA should provide a conceptual landscape plan for all the project components while considering the special environmental and social needs.

(c) Monitoring Plan: The Bidder should specify the types of monitoring needed for potential environmental impacts during construction and operation. As in the case of the mitigation plan, requirements should be specific as to what is to be monitored, how and by whom along with reporting formats and recommendations if any Cost estimates are necessary and where monitoring reports are to be prepared, the recipient responsible for review and any corrective action should be identified. The monitoring plan should be supplemented with a detailed schedule of implementation of EMP measures.

(d) Institutional Arrangement to Manage Environment Impacts Effectively: The Bidder shall identify institutional/organizational needs to implement the recommendations of the project EA and to propose steps to strengthen or expand, if required. This may extend to new agency functions, inter-sectoral arrangements, management procedures and training, staffing, operation and maintenance, training and budgeting.

4. Public Disclosure

The Bidder is to provide support and assistance to the Client in meeting the disclosure requirements, which at the minimum shall meet the relevant state/central government policy on public disclosure. The Bidder will prepare a plan for in-country disclosure, specifying the timing and locations; translate the key documents, such as the EA Summary in local language; draft the

Page 468: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

253 of 267

newspaper announcements for disclosure; and help the client to place all the EA reports in the client’s website. The Bidder shall prepare a non-technical EA Summary Report for public disclosure.

5. Review Committee

The review committee comprising of representatives from SMB, MSPCB, other state department will review and clear the EIA report.

Page 469: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

254 of 267

6. Pre Construction Phase Impacts

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies

PRE-CONSTRUCTION STAGE

1 Clearances All clearance required for Environmental aspects during construction shall be ensured and made available before start of work.

Before construction

Bidder /SMB/ Consultants

2 Tree Cutting a. Try to save the trees by adjusting the plant layout or the alignment of sewage structures, sewer mains, etc

b. Provide adequate protection to the trees to be retained with tree guards (e.g. Masonry tree guards,) as required.

c. Identify the number of trees that will be affected with girth size & species type along the sewer mains, pumping / lifting station sites and sewerage treatment plant site.

d. Trees identified for cutting shall be removed from the construction sites before commencement of construction with prior permission from the concerned department.

e. Undertake tree plantation (not less than three rows inside and along the boundary of STP, and compensatory plantation as per the tree cutting clearances).

f. Compensatory plantation by way of Re-plantation of at least twice the number of trees cut should be carried out in the project area.

Pre-construction & Construction phase

Bidder

3 Utility Relocation (If any identified)

a. Identify the common utilities to be affected such as: telephone cables, electric cables, electric poles, water pipelines, public water taps if any, etc

b. Affected utilities shall be relocated with prior approval of the concerned agencies before construction starts.

c. Provide advance notice (not less than 10 working days) to affected parties.

Pre-construction & Construction phase

Bidder /SMB/ Consultants

4 Baseline parameters

• Adequate measures shall be taken and checked to control the Baseline parameters of Air, Water and Noise pollution. Base line parameters shall be recorded and ensured conformance till the completion of the project.

Preconstruction, construction & post

Bidder /SMB/ Consultants

Page 470: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

255 of 267

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies

• The monitoring requirements, at minimum shall comply with consent conditions by the pollution control board

construction phase

5 Planning of temporary Traffic arrangements

a. Temporary diversion will be provided with the approval of the engineer at least two weeks prior to commencement of works.

b. The traffic control plans shall contain details of temporary diversion, details of arrangements for construction under traffic, details of traffic arrangement after cessation of wok each day.

c. Any accidents and/or risk of inconveniences caused to the community shall be borne by the Bidder

Preconstruction & construction phase

Prospective Bidder / SMB

6 Disposal of treated waste water

a. The construction activities at STP shall be initiated only after consent to establish certificate is secured from the GSPCB

b. STP operations shall take place only after Consent to Operate certificate is accorded by the GSPCB and the treated water quality shall comply with the tender conditions stipulated or at minimum shall meet the discharge standards depending on the type of receiving water body (stream / nullah /open land /irrigation purposes, etc.)

c. Performance standards shall always be maintained, Ensuring efficient working condition of treatment plant

Preconstruction & construction phase

Bidder /SMB/ Consultants

7 Storage of materials

• The Bidder shall identify the site for temporary use of land for construction sites /storage of construction materials, etc. These sites shall be operated only after prior approval of the engineer.

Preconstruction & construction phase

Prospective Bidder / SMB

8 Construction of labour camps

a. Bidder shall follow all relevant provisions of the Factories Act, 1948 and the Building and the other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 for construction and maintenance of labour camp. The location, layout and basic facility provision of each labour camp will be submitted to Engineer prior to their construction.

b. The construction will commence only upon the written approval of the Engineer. The Bidder shall maintain necessary living accommodation and ancillary facilities in functional and hygienic manner and as approved by the

During the construction

Prospective Bidder

Page 471: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

256 of 267

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies Engineer.

c. Adequate health care is to be provided for the work force. The layout of the construction camp and details of the facilities provided should be prepared and shall be approved by the engineer. The construction camp shall not be located within

d. 500m from the nearest water stream, residential areas and/or any sensitive land uses like schools, hospitals, etc.

7. CONSTRUCTION STAGE

Construction of Sewerage Treatment Plant

1 Compensatory plantation of trees

• Compensatory plantation of atleast twice the number of trees felled should be done in line with competent authority guidelines

Pre-construction and Construction

Prospective Bidder / SMB

2 Protection of top soil & Environmental enhancing

• The top soil to be protected and compacted after completion of work. Top soil from the STP area should be stored in stock piles and that can be used for gardening purposes at site which will be an environmental enhancing measure.

During construction

Prospective Bidder / SMB

3 Disposal of construction debris and excavated materials.

• A suitable site should be identified for safe disposal, in relatively low lying areas, away from the water bodies, residential and agricultural fields etc., and got approved by the Engineer. Care should be taken that dumped material does not affect natural drainage system.

During construction

Prospective Bidder / SMB

4 Pollution from Fuel and Lubricants

a. The Bidder shall ensure that all construction vehicle parking location, fuel/lubricants storage sites, vehicle, machinery and equipment maintenance and refueling sites will be located at least 500 m from rivers and irrigation canal/ponds.

b. All location and lay-out plans of such sites shall be submitted by the Bidder

Construction and O&M period.

Prospective Bidder / SMB

Page 472: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

257 of 267

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies prior to their establishment and will be approved by the Engineer.

c. Bidder shall ensure that spillage of fuels and lubricants does not contaminate the ground.

d. Bidder will arrange for collection, storing and disposal of oily wastes to the pre-identified disposal site. All spills and collected petroleum products will be disposed off in accordance with state GSPCB guidelines.

5 Contamination of ground water quality

a. Groundwater quality may get contaminated due to leaching of waste water. So, the treated water quality shall comply with the standards laid down by the GSPCB for disposal onto land, water body or for irrigation use.

b. Regular monitoring is required for the treated sewage quality and also the ground water quality in the near by areas and ensures compliance with GSPCB standards.

During

construction

and operation

Prospective Bidder / SMB

6 Water Pollution from Construction Wastes

• The Bidder shall take all precautionary measures to prevent the wastewater generated during construction from entering into streams, water bodies or the irrigation system. All waste arising from the project is to be disposed off in the manner that is acceptable by the Engineer.

During construction

Prospective Bidder / SMB

7 Impact of surrounding areas

• To avoid the problems of foul smell polluted air, insects, noise pollution and other problems buffer zones to be provided in the form of green belt around the STP site, this has to be strictly ensured

During construction

Prospective Bidder / SMB

8 Informatory Signs and Hoardings

• The Bidder shall provide, erect and maintain informatory /safety signs, hoardings written in English and local language, wherever required or as suggested by the Engineer.

During construction

Prospective Bidder / SMB

9 Risk from Electrical Equipment(s)

The Bidder shall take all required precautions to prevent

danger from electrical equipment and ensure that - • No material shall be stacked or placed as to cause danger or inconvenience to

any person or the public.

During construction

Prospective Bidder

Page 473: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

258 of 267

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies

• All necessary fencing and lights will be provided to protect the public in construction zones. All machines to be used in the construction will conform to the relevant Indian Standards (IS) codes, will be free from patent defect, will be kept in good working order, will be regularly inspected and properly maintained as per IS provision and to the satisfaction of the Engineer.

10 Disposal of treated waste water

a. The treated water quality shall comply with the standards of MSPCB before let out into the stream / nullah /open land /irrigation purposes, and necessary permission to be obtained from the concerned department.

b. Ensure efficient working condition of treatment plant. c. Prevent the pollution of stream water and other water bodies receiving STP

discharge.

Pre-construction/construction and operation stage.

SMB/ Prospective Bidder

11 Labour camp & facilities

• A suitable site should be identified for the safe disposal of sludge generated at the STP site and got approved by the Engineer. Prepare a sludge disposal plan and adheres to the same.

During Pre-construction and construction

Perspective Bidder / SMB

12 Labour camp & facilities

a. Setting up of labour camps needs to be done as per the procedures. Adequate potable water facilities, sanitation and drainage etc., in conformity with the Indian labour laws shall be ensured. The Bidder shall also guarantee the following:

b. The location, layout and basic facility provision of each labour camp will be submitted to Engineer prior to their construction.

c. The construction will commence only upon the written approval of the Engineer.

d. The Bidder shall construct and maintain all labour accommodation in such a fashion that uncontaminated water is available for drinking, cooking and washing.

e. Supply of sufficient quantity of potable water (as per IS) in every workplace/labor camp site at suitable and easily accessible places and regular maintenance of such facilities.

f. The sewage system for the camp are designed, built and operated in such a

During Pre-construction and construction

Perspective Bidder / SMB

Page 474: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

259 of 267

S.No Potential Negative Impacts

Mitigation Measures Time frame Responsible

Agencies fashion that no health hazards occurs and no pollution to the air, ground water or adjacent water courses take place. Ensure adequate water supply is to be provided in all toilets and urinals.

13 Safety Aspects a. Adequate precautions shall be taken to prevent the accidents and from the machineries. All machines used shall confirm to the relevant Indian standards Code and shall be regularly inspected by the PIA.

b. Where loose soil is met with, shoring and strutting shall be provided to avoid collapse of soil.

c. Protective footwear and protective goggles to all workers employed on mixing of materials like cement, concrete etc.

d. Welder’s protective eye shields shall be provided to workers who are engaged in welding works.

e. Earplugs shall be provided to workers exposed to loud noise, and workers working in crushing, compaction, or concrete mixing operation.

f. The Bidder shall supply all necessary safety appliances such as safety goggles, helmets, safety belts, ear plugs, mask etc to workers and staffs. The Bidder will comply with all the precautions as required for ensuring the safety of the workmen as applicable to this contract. The Bidder will not employ any person below the age of 15 years for any work and no woman will be employed on the work of painting with products containing lead in any form.

During construction

Prospective Bidder

14 First Aid The Bidder shall arrange for : • A readily available first aid unit including an adequate supply of sterilized

dressing materials and appliances as per the Factories Rules in every work zone

• Availability of suitable transport at all times to take injured or sick person(s) to the nearest hospital

During construction

Prospective Bidder

Page 475: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

260 of 267

8 Environmental enhancement and special issues Location Responsible Agencies

1 Flora and Chance if found

The Bidder will take reasonable precaution to prevent his workmen or any other persons from removing and damaging any flora (plant/vegetation) and fauna (animal) including fishing in any water body and hunting of any animal. If any wild animal is found near the construction site at any point of time, the Bidder will immediately upon discovery thereof acquaint the Engineer and carry out the Engineer's instructions for dealing with the same. The Engineer will report to the near by forest office (range office or divisional office) and will take appropriate steps/ measures, if required in consultation with the forest officials.

Project area (STP area and its surrounding)

Prospective Bidder

2 Chance found Archaeological Property (if any)

All fossils, coins, articles of value of antiquity, structures and other remains or things of geological or archaeological interest discovered on the site shall be the property of the Government and shall be dealt with as per provisions of the relevant legislation.

The Bidder will take reasonable precautions to prevent his workmen or any other persons from removing and damaging any such article or thing. He will, immediately upon discovery thereof and before removal acquaint the Engineer of such discovery and carry out the SC's instructions for dealing with the same, waiting which all work shall be stopped. The Engineer will seek direction from the Archaeological Survey of India (ASI) before instructing the Bidder to recommence the work in the site

Project area (STP area and its surrounding)

Prospective Bidder

3 Monitoring of environment parameters

The Bidder shall undertake seasonal monitoring of air, water, noise and soil quality through an approved monitoring agency. The parameter to be monitored, frequency and duration of monitoring plan shall be prepared

Project area Prospective Bidder

4 Sensitive Areas The sensitive areas like Schools, hospitals to be provided with suitable noise barriers and safety measures, prior to the start of work in order to minimize the dust and noise impacts due to vehicle movement during construction and their effectiveness to be checked during operation phase .

Project area Prospective Bidder

Page 476: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

261 of 267

8 Environmental enhancement and special issues Location Responsible Agencies

5 Clearing of construction of camps and restoration

Bidder to prepare site restoration plans for approval by the engineer. The plan is to be implemented by the Bidder prior to demobilization. On completion of the works, all temporary structures will be cleared away, all rubbish cleared, excreta or other disposal pits or trenches filled in and effectively sealed off and the site left clean and tidy, at the Bidder’s expenses, to the entire satisfaction of the engineer.

Corridor of Impact

Prospective Bidder

6 Tree Protection, Tree Planting,

Giving due protection to the trees that fall in the shoulders /corridor of impact shall be the prime focus during Construction/post construction • Masonry tree guards, Low level RCC tree guards, Circular Iron Tree Guard

with Bars, use of plate compactors near trees may also be considered where necessary

• Re-plantation of at least twice the number of trees cut should be carried out along the project road. Since the major portion of the project road may pass through open lands, planting of trees along the entire stretch of the road is recommended as an enhancement measure.

• Growth and survival of trees planted shall be ensured and monitoring done at least for a period of 3 years .Survival status shall be reported on monthly basis to Employer.

Corridor of Impact

Prospective Bidder

Page 477: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

262 of 267

9. Environmental Monitoring Plan

To monitor the extent of environmental impact of the proposed project, the Bidder has to periodically monitor the ambient environmental quality along the proposed project area. The monitoring requirement for the different environmental components is presented in table below

9.1 Air Quality Monitoring

Project stage Pre Construction , Construction & operation period (as agreed)

Parameter SPM, RPM, SO2, NOx, CO and Pb

Sampling Method Use method specified by CPCB /MSPCB for analysis

Standards Air (Prevention and Control of Pollution) Rules, CPCB, 1994

Frequency Once before start of work & once every season of the year during construction period & upto 18 months (operation Period)

Duration Continuous 24 hours / or for 1 full working day

Location Sensitive locations along the pipe laying work, pumping /lifting station locations, STP site.

Measures Wherever air pollution parameters increase above specified standards, additional measures as decided by the engineer shall be adopted

Implementation Bidder through approved monitoring agencies

Supervision Implementing agency (SMB /Consultants)

9.2 Water quality Monitoring

Project stage Pre Construction & Construction

Parameter • pH, BOD, COD, DO, TDS, Pb, Oil & Grease and Detergents for Surface water.

• Water pH, TDS, Total hardness, Sulphate, Fluorides, Chloride, Fe, Pb for groundwater.

Sampling Method Grab sample collected from source and analysis as per Standard Methods for Examination of water and Waste water

Standards Indian standards for Inland Surface Water (IS; 2296, 1982) and for Drinking water (IS; 10500,1991)

Frequency Twice a year (pre monsoon and post monsoon seasons) during the construction period and O & M period

Duration Grab sampling

Location Locations to represent residential, agricultural, surface water quality & vicinity of construction site.

Page 478: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

263 of 267

Measures At locations of increased in water pollution, all inflow channels shall be checked for pollution loads and channel delivering higher pollution loads and channel delivering higher pollution load shall be terminated from disposal into the water source and other methods of disposal shall be adopted

Implementation Bidder through approved monitoring agencies

Supervision Implementing agency (SMB /Consultants)

9.3 Noise Level Monitoring

Project stage Pre Construction , Construction & operation period (as agreed)

Parameter Noise level on dB (A) scale noise levels on dB (A) scale

Special guidance Free field at 1 m from the equipments whose noise level are being determined.

Equivalent noise levels using an integrated noise level meter kept at a distance of 15m from edge of pavement

Standards MoEF Noise Rulers, 2000

Frequency Once every seasons (except monsoon) for each year of construction

Duration Reading to be taken at 15 seconds interval for 15 minutes every hour and then averaged

Location • Wherever the Bidder decides to locate the equipment yard. • At sensitive location such as school, hospitals etc

Measures In case of noise levels causing disturbance to the sensitive receptors, management measures as suggested in the EMP shall be carried out.

Implementation Bidder through approved monitoring agencies

Supervision Implementing agency (SMB /Consultants)

9.4 Soil Quality Monitoring

Project stage Pre Construction & Construction

Parameter Monitoring of Pb, SAR and Oil & Grease

Sampling Method Sample of soil collected to be acidified and analysed using absorption spectrophotometer

Standards Threshold for each contaminated set by IRIS database of USEPA until national standards are promulgated

Frequency During the pre monsoon post monsoon seasons each year for the entire construction period

Duration Grab sampling

Page 479: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

264 of 267

Location At productive agriculture lands abutting traffic detours, pumping / lifting station locations and STP site.

Measures At location of increased in pollution levels, source shall be identified and shall be diverted from future disposal

Implementation Bidder through approved monitoring agencies

Supervision Implementing agency (SMB /Consultants)

Apart form the above mentioned monitoring requirements, any major accidents /spillage during bulk transport of hazardous materials. Depending on the type of spillages / accidents the parameters to be monitored will be decided by the engineer and should be carried out by the Bidder through approved monitoring agencies and supervised by the Implementing agency at their own cost.

10. Formats for Reporting

Formats for reporting / monitoring the progress / parameters achieved will be finalized in consultation with the successful bidder.

11. Environmental Compliance Report

The Bidder shall submit a monthly progress report as per the reporting format approved by the engineer, on the status of the implementation of the EMP, and get it duly approved by the engineer for its compliance and for proceeding with the work. The Engineer and the Environmental and Social Safeguard (ESS) Manager, who will have access and authority to monitor the status based on the same and for which necessary facilities shall be made by the Bidder.

12. Environmental Protection Work

The Bidder shall have to take following measures during construction and commissioning of works for protection of environment as under to avoid environmental impacts on air, water and land.

12.1 Site Clearance

The site clearance shall be done with minimum damage to existing structures flora and fauna, electricity and telephone lines and other infrastructure service.

12.2 Earth Work and Excavation

The Bidder shall inform the local authorities / government if any fossils, coins artifacts of value or antiquity, structures and other remains of geological or archaeological interests and excavation shall be stopped until identification of cultural relics by the authorized institution is completed. The Bidder shall dispose off surplus / waste material at identified sites approved by the Engineer. The Bidder shall ensure that there is minimum hindrance to normal activities and business. The Bidder shall avoid damage to permanent structures and shall avoid loss of standing crops along the road.

Page 480: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

265 of 267

12.3 Re-plantation

The Bidder shall carry out Re-plantation on areas / on the periphery of construction sites to minimize visual impact and soil erosion. The Bidder shall pay special attention to the type of trees to be replanted to prevent fouling of water through falling leaves and bird droppings. A list showing the type of trees to be replanted will be got approved before replanting any trees.

12.4 Soil Erosion and Water Quality

The Bidder shall ensure that earth and stone do not silt up existing irrigation /drainage systems. The Bidder shall take suitable measures to prevent direct discharge of polluted waters form construction activity into lakes/rivers/irrigation channels. The Bidder shall minimize exposure of soil types susceptible to wind and water erosion. The Bidder shall control run-off and erosion through proper drainage channels and structures.

12.5 Soil Compaction

The Bidder shall restrict traffic movements and use low ground pressure machines. The Bidder shall preserve topsoil to be replaced after completion of construction activity. The Bidder shall avoid wet soils.

12.6 Social Disruption

The Bidder shall minimize interruptions to utility services through proper planning and scheduling of activities. The Bidder shall provide temporary roads and diversions as may be necessary for smooth flow of traffic.

The Bidder shall preferably use local labour / Skilled persons during construction.

12.7 Dust / Air Pollution

The Bidder shall provide effective dust control through sprinkling / washing of construction sites and access roads. The Bidder shall cover / water stockpiles and storage areas to prevent dust pollution.

The Bidder shall cover trucks transporting construction materials to minimize spills. The Bidder shall have a preventive maintenance program for construction equipment and vehicles to meet emission standards.

12.8 Noise Pollution

The Bidder shall normally undertake construction work during daytime only (between 7.30 to 18.00 hrs) and when authorized to work beyond these hours adopt suitable noise control methods during such works.

The Bidder shall maintain machines and trucks to keep them with low noise. The Bidder shall install sound barriers and plant tree as appropriate during construction.

Page 481: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

266 of 267

12.9 Construction Camps • The Bidder shall take adequate measures such as provision of septic tank /pit latrines at

construction site / camps. • The Bidder shall provide crèches to working women labour. • The Bidder shall provide drinking water conforming to IS: 10500 • The Bidder shall provide garbage cans at suitable fixed place and have the garbage disposed

off regularly.

12.10 Aesthetic Improvement • The Bidder shall through proper house keeping enhance aesthetic appearance of construction

sites. • The Bidder shall dispose-off construction wastes at approved disposal sites. • The Bidder shall repair pavements immediately following construction pipeline and

appurtenant structures. • The Bidder shall remove after completion of construction, all temporary structures and

restore the project and surrounding areas nearest possible to the pre construction condition.

12.11 Conservation of Ecological Resources • The Bidder shall not use farmland and forest belts as materials borrow sites. • The Bidder shall not select arable land as material borrows site. In case excavation in arable

land is unavoidable, topsoil layer (30 cms. depth) shall be saved and returned after construction work is completed so as to minimize impacts on ecosystem, agriculture and animal husbandry.

• The Bidder shall educate construction workers to protect natural resources, wild plants and animals.

12.12 Risk of Accidents • The Bidder shall provide efficient lighting equipment and safety signs on temporary roads

during construction and shall adopt and implement adequate traffic regulation. • The Bidder shall take effective safety and warning measures to reduce accidents. • The Bidder shall provide suitable temporary crossings to facilitate normal life and business.

12.13 Responsibility for Accidents, Damages Etc.

The care of the whole of the permanent work until their completion and the whole of the temporary work until their removal shall remain with the Bidder who shall be responsible for all accidents or damages from whatever cause arising and chargeable for anything that may be stolen, removed, destroyed or damaged to whomsoever belonging and also for making good all defects and damages to the said Works or to any property adjoining or any cause whatever, whether such

Page 482: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

267 of 267

damage or defects where occasioned by the negligence of the Bidder or not or may be or might have been discovered during the progress of the works or in

consequence thereof, or shall appear to be known after the completion whereof or whether payment may wholly or partially have been made or the Works approved as supposed to have been properly done, and no certificate or approval of any works by any officers or members of the Employer shall effect

12.14 Noise Monitoring

Monitoring Frequency: • During construction period: 12 times a year each time including day and night. • During Commissioning period: 4 times ad hoc monitoring will be taken. • During construction period: Near construction sites, factory sites and Sensitive areas.

The EMP shall be applicable during construction and post construction period upto complete tenure of the contract which also includes comprehensive Operation and Maintenance period

Page 483: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1.1 Description of the Project Area

Introduction

Shillong, the capital of Meghalaya is situated in the East Khasi hills district popularly referred as “The Scotland of the East”. The city derived its name from a deity named Shillong, whose dwelling place is known as ShillongPeak. He is believed to have established the art of democratic governance and rule of justice in the formation of the princely Shillong (HimaShillong), which subsequently bifurcated into MylliemState and KhyrimState in 1830. During the British rule, it consisted of a few clusters of hamlets which were scattered. The British administration shifted the headquarters of United Khasi and Jaintia hills district from Cherrapunjee to Shillong. In 1874 the State of Assam was created out of Bengal, the city became its provincial capital. In 1972, when the State of Meghalaya became a separate State, the city became its capital.

Brief history of the town

Shillong, the capital of Meghalaya is situated in the East Khasi hills district popularly referred as “The Scotland of the East”. The city derived its name from a deity named Shillong, whose dwelling place is known as ShillongPeak. He is believed to have established the art of democratic governance and rule of justice in the formation of the princely Shillong (HimaShillong), which subsequently bifurcated into MylliemState and KhyrimState in 1830. During the British rule, it consisted of a few clusters of hamlets which were scattered. The British administration shifted the headquarters of United Khasi and Jaintia hills district from Cherrapunjee to Shillong. In 1874 the State of Assam was created out of Bengal, the city became its provincial capital. In 1972, when the State of Meghalaya became a separate State, the city became its capital. During the pre-British period, Shillong comprised of a few clusters of scattered hamlets In 1863, the British Administration shifted the Headquarter of United Khasi and Jaintia Hills District from Cherrapunjee to Shillong and subsequently upon separation of Assam from Bengal in 1874,Shillong became provincial headquarter of Assam.

This resulted in a rapid growth of population, from 1363 inhabitants in 1872 to around 4000 in 1875. With the expansion of administrative establishments, commercial activities also increased considerably to serve the growing population. During the period, various educational institutions were established by the missionaries and the town became the educational centre of the North Eastern Region of India. The post-independence period marked an accelerated growth due to influx of migrants from the neighbouring states as well as from other parts of the country. Defence establishments also increased to a great extent since the city is not far from the international border.

Page 484: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

In 1972, Meghalaya attained full statehood and Shillong become the capital of state. Hence, over a century this one time tiny settlement has overgrown into a flourishing city, not only as an administrative centre but also as a regional commercial centre for the entire North-eastern India.

Geographical location

The Greater Shillong Planning Area (GSPA) is spread over an area of 174 sq. km. it comprises of two district areas viz., Shillong Urban Agglomeration (SUA) and the rural area. The SUA consists apart from the Shillong Municipal Board (SMB) area, and six other urban centres namely, Shillong Cantonment, Mawlai, Nongthymmai, Pynthorumkhrah, Madanryting, and Nongmynsong. The rural area comprises of 32 rural settlements.

Shillong located at 250 31’ 26” – 250 39’ 56” N Latitude and 910 47’ 20” – 920 0’ 39” E Longitude, the altitude of the city varies between 1400 to 1900 m above mean sea level (MSL). The National Highway (NH – 40) links Shillong with Guwahati and rest of the country. The distance between the two cities is 103 kms.

It is well connected by a network of roads within the State and with all important cities in the neighbouring States. It is connected with the rest of the country through Guwahati by road, rail and by air which is 120km from Shillong. Helicopter service is also available between Shillong- Guwahati- Shillong and Shillong -Tura. There is a minor airport at Umroi, 35 kms from Shillong.

It is one of the few hill stations with motorable roads all round the city. Shillong has its own charm, different from other hill stations, and presents a natural scenic beauty with waterfalls, brooks, pine grooves and gardens. The place, the people, the flora and fauna and the climate all combine to make Shillong an ideal resort throughout the year.

.

Climate

Climate is one of the most important factors of geographical environment to which man is subject to. It governs agriculture, forests, supply of water, human settlements, industries, tourism, etc. The climate of East Khasi hills district including the Shillong city ranges from temperate in the plateau region to the warmer tropical and sub- tropical pockets on the Northern and Southern regions.

The climate of Shillong is characterised by moderate warm wet summer and cool dry winters. The climate can be classified under humid sub tropical climate found in the eastern part of the continent. The city is influenced by the southwest monsoon, which begins generally from May and continues till September. The weather is humid for the major part of the year except for the relatively dry conditions between the months of December and March. The maximum temperature in this region will not go beyond 28 degree Celsius. During summer the temperature ranges from 17ºC to 25ºC and winter temperature ranges from 3ºC - 17ºC.

The mean annual rain fall of Shillong is around 212 cms approximately. The moderate rain fall of Shillong is the result of its situation in the rain shadow zone of the Shillong range. Of the total rain fall about two third falls in the monsoon months of June to September brought about mainly by the South – West monsoon winds. Pre monsoon gets only one fifth of the total rains mainly by thunder storms. The retreating monsoon season is less rainy. While the winter is almost dry.

Page 485: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Topography, Geology and Forest Coverage

Shillong falls on deeply dissected central upland of the Meghalaya Plateau. The relief of the city varies from 1400 to 1900m above mean sea level (MSL). The Khasi hills range at the south descends at a slope of 200+ towards the city and acts as a water divide. The slope within the city ranges from 5% to 10%, except at the locations such as Happy valley, Pynthorumkhrah and Polo ground area, where slope are gentle within the range of up to 5%. WahUmkhrah, WahUmshyrpi and WahUmkhen are the three main streams draining the city through a number of second and third order tributaries. Shillong, occupies the northern slopes and foothills of ShillongPeak at an average altitude of 1496 meters above Mean Sea Level (MSL).

Shillong lies on low-grade metamorphic rocks of Shillong Group. The rock types are predominantly of quartzite with subordinate of Phyllites and slates followed by schist and gneisses. The Quartzite band dips at 200 to 400 in North-North East to South-South West direction. The rock band is found at a depth of 1m to 3m from the topsoil level, except at places where the crusted Quartzite bands are exposed. Four sets of joints have been noted in this quartzite, which have rendered them splintery at places where all the sets are intensely developed. The quartzite exhibits broad open folds.

No major fault or thrust occurs within the Shillong Urban Zone but prominent lineament and a major shear zone (Tyrsad-Barapani Shear) occur in the vicinity. Shillong falls in the seismic Zone V. The base of Shillong group is marked by conglomerate bed containing cobbles and boulders of Archaen rocks. In case of Shillong the other environmental factors like lithology, regolith characteristics have very limited or no influence on the foundation, which is already found to be suitable, and the area is free from landslide problems.

The soil in Shillong is mainly laterite soil, deficient in phosphorus and potash content but rich in nitrogen and organic matter. The soils are mildly acidic in nature. PH value ranges from 4.8 to 6.2. Some areas have alluvial fills, which are heavy loams and contain larger amount of organic matter. The thickness of the soil varies from 1 to 10 meters.

The total area under forests and water bodies is 4391.93 Ha i.e 25.24% of the Master Plan Area. The original Sub-Tropical Pine Forests existing in Master Plan Area has become degraded to large extent due to forest clearing and Jhum cultivation. The major cause of deforestation seems to be more a societal need and for additional income from land. The city also experience spurt in urban sprawl due to population growth and rural-urban migration. Since the land is owned by private people degradation of forest cannot be controlled.

Town Management

(a) Shilong Municipal Board (SMB)

The Shillong Municipal Board (SMB) was constituted in the year 1910 and it is being governed under the provisions of Meghalaya Municipal Act 1973 and subsequent amendments. The municipal jurisdiction extends to 10.26 sq. kms. out of a total planning area of 174 sq. kms. Elected council is absent since 1973. Since then the Board is being administered by a senior officer of the State Government who is designated as Chief Executive Officer (CEO) and assisted by the Executive Officers and other staff.

(b) Shillong Cantonment Board

The Shillong Cantonment Board falls under Military Jurisdiction and CEO (SCB), looks after all the activities of the Board. The area covers about 1.84 sq.km out of a total planning area of 174 sq. kms.

Page 486: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

(c) Constitutional Position

Part 10 of the Constitution of India deals with the “Scheduled and Tribal Areas” Article 244 (2) of the Constitution states that: The provisions of the Sixth Schedule shall apply to the administration of the tribal areas in the States of Assam, Meghalaya, Tripura and Mizoram. The Sixth Schedule provides for declaring those districts included in each item of (Parts 1,II and II A and in Part III) of the table appended to paragraph 20 of the Sixth Schedule as autonomous districts, which in the case of the State of Meghalaya, includes Khasi hills district, Jaintia hills district and the Garo hills district. To govern these districts, Para 2 (sub Para 1) provides that: a) There shall be a District Council for each autonomous district consisting of not more than 30 members, of whom not more than four persons shall be nominated by the Governor and the rest shall be elected on the basis of adult suffrage.

The traditional institutions operating in the State of Meghalaya are detailed below.

(d) District Council

The major authority to District Council is as follows: − The allotment, occupation or use, or the setting apart, of land, other than any land which is a

reserved forest for the purposes of agriculture or grazing or for residential or other non-agricultural purposes or for any other purpose likely to promote the interests of the inhabitants of any village or town. However, the State government is empowered to compulsorily acquire any land, whether occupied or unoccupied, for public purposes.

− The management of any forest not being a reserved forest. − The use of any canal or water-course for agricultural purposes. − The regulation of the practice of Jhum or other forms of shifting cultivation. − The establishment of village or town committees or councils and their powers. − Any other matter relating to village or town administration, including village or town police and

public health and sanitation. − The appointment or succession of Chiefs or Headmen. − The inheritance of property. − Marriage and divorce. − Social customs. − Further, the District Council enjoys the power to levy and collect all or any of the following taxes

viz. Taxes on professions, trades, callings and employments; Taxes on animals, vehicles and boats; Taxes on the entry of goods into a market for sale therein, and tolls on passengers and

goods carried in ferries; and Taxes for the maintenance of schools, dispensaries or roads.

(e) DorbarHima The DorbarHima or the State Assembly is presided by SYIEM who is the chief of a tribe who rules a HIMA or a number of villages or areas. Representation at the Hima and Raid level is rigid. Syiem can be elected only from the Syiems’ family or its legitimate branch. The electoral council consists of Council members and other Heads of Clans. In some cases the Heads of Clans propose the names of the candidates and the people choose the Syiem. The functions to be discharged by Syiem include; construction and maintenance of roads, bridges, water sources and sanitation; establishment of and maintenance of markets and collection of dues; welfare works and community services; judicial powers to settle petty disputes/cases; to organize cultural festivals.

Page 487: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

(f) DorbarShnong

Each Village or Area has a SHNONG, headed by a RANGBAH SHNONG (Headman) who is elected by voice vote of the villagers. Other members are elected in a similar manner. Election is endorsed under the guidelines of the tribe. Term of office vary from Dorbar to Dorbar. It enjoys no legal or constitutional status.

TheDORBAR SHNONGSare responsible for looking after law and order, maintaining the common properties of the village and ensuring the delivery of urban services which is done in cooperation with the SMB and related State Government departments.

Land Use in and around the city

Quality of life and functional efficiency of an urban centre is dependent on rationale distribution of social, economic, cultural etc., activities. Organizing and promoting a balanced functional relationship among different activities like living, work place, recreational areas is essential for ensuring proper quality of life.

The Shillong Master Plan covers an area of 17400 hectares. In order to understand the issues involved in land use in the proposed area and to understand the existing land use pattern its existing use is classified into the categories of : residential; commercial; public and semi-public; industrial; security; circulation; vacant; urban agriculture and forest and water bodies. The following table 1.1 gives the picture of the land resources in the city.

Table: Error! No text of specified style in document..1: Land Resource in GSPA

Sr. No. Land use Area (hectares) % of total area

1 Developed area 5494.1 31.6

2 Undevelopable area 1573.88 9.1 3 Developable area 5077.02 29.2

4 Urban Agriculture 803.07 4.6 5 Forest & Water Bodies 4451.93 25.5 6 Total 17400 100

(Source: Master Plan-1991-2011)

The ExistingLand use plan as per Master Plan of Shillong 1991-2011 is given in the following table 1.2.

Table: Error! No text of specified style in document..2: Existing Land Use in the City of Shillong, 1991

Land use Existing Land Use

Area in ha %age to total area % age to total developed area

Residential 2662.8 15.3 48.5

Commercial 56.6 0.3 1

Public and Semi Public 1202 6.9 21.9

(a) Administrative 177.9 0.7 2.2

(b) Institutional 903.2 5.2 16.4

(c) Organized open space 118.1 0.7 2.2

Page 488: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Land use Existing Land Use

Area in ha %age to total area % age to total developed area

(d) Graveyards 61.8 0.4 1.1

Security 779.3 4.5 14.2

Industrial 10 0.1 0.2

Circulation 783.4 4.5 14.3

Vacant 6650.9 38.2 0

Urban Agriculture 803.1 4.6 0

Forests and water bodies 4451.9 25.6 0

Total 17400 100 100 (Source: Master Plan of Shillong, 1991-2011)

Almost half the total developed area land use is for residential purposes followed by institutional, security and circulation uses. It is clear from the above table that industrially the city has not made any headway notwithstanding the fact that enough scope exists for development of cottage and small scale industrial units. Another interesting fact is the absence of vacant land in the developed area. Though the land use for circulation appears to be significant, in fact, is inadequate as is evident from narrow roads, areas without vehicular roads, missing links and inadequate parking facilities.

The proposed land use for the GSPA as per Master Plan of Shillong 1991-2011is presented in the following table.1.3

Table: Error! No text of specified style in document..3: Proposed Land use, 2011

Land use Proposed Land Use

Area in ha %age to total area % age to total developed area Residential 5095.3 29.3 60.9 Commercial 97.7 0.6 1.2 Public and Semi Public 1326 7.6 15.8 (a) Administrative 147.9 0.9 1.8 (b) Institutional 963.2 5.5 11.5 (c) Organized open space 153.2 0.9 1.8 (d) Graveyards 61.8 0.4 0.7 Security 779.3 4.5 9.3 Industrial 60 0.3 0.7 Circulation 1013.4 5.8 12.1 Vacant 788.1 4.5 0 Urban Agriculture 4391.9 25.2 0 Forests and water bodies 3848.2 22.1 0

Total 17400 100 100 (Source: Master Plan of Shillong, 1991-2011)

Page 489: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1.2 Status of Water Supply

The investigation, planning and execution agency for the entire area is with the PHED and the production of water and distribution in the City is covered by SMB, SCB, PHED and Dorbars in their respective areas.

The SMB and PHED provide the bulk of the water supply services in the city. The water sources are rivers, streams and springs. The SMB controls several springs and stream. In areas beyond the PHED networks some Dorbars developed small water schemes supplying the water through stand posts. Small springs are also used by nearby residents to meet their water needs. Households without access to public or private services depend upon supply made tankers or purchase water from private vendors/ operators or depend on private bore wells or hand pumps.

The Greater Shillong Water Supply Project (GSWSP) was designed to cover the areas under Shillong Urban Agglomeration during the period of 1978 and phase I of the project was commissioned in the year 1986. River Umiew at Mawphlang which is about 30 km away from Shillong is the source of supply. The phase I of the project envisages lifting of water from the river in two stages and convey to Water Treatment Plant (WTP) located at Mawphlang through 2.42km length 600mm dia. MS pipe. The Capacity of the WTP is 34.05MLD. The Transmission mains of 30km length with dia. varying from 750mm to 150mm were laid from WTP to different parts of greater Shillong area and storage reservoirs of 6.81ML total capacity.

Phase II of the project comprises construction of mass gravity concrete dam of about 130m wide and 50 m height across the river Umiew at Mawphlangdown stream of the existing intake structure, Construction of additional 17.25 MLD capacity WTP, laying of gravity feeder main of about 25km length diameter varying from 400mm to 150mm and construction of zonal reservoirs of 11.40 ML of total capacity.

1.3 Status of Existing Waste Water Disposal System

At present there is no sewerage system in the town. The domestic sewage is collected into individual septic tanks & soak pits and the sullage flows into storm water drains nearby the houses. Sewage and sullage are currently polluting the drains, rivers, lake and the environment; UmiamLake, which receives the sewage, is used as a major source of drinking water is being polluted as most of this waste water finally drains into this lake.

As per CDP about 9% people in SMB have no toilets, 44% depend on shared toilets and 47% have individual toilets. Similarly in Shillong Urban Agglomeration about 46% of households have toilets, 40% depend on shared toilets and 14% of the households are not having toilets and depend on other methods including open defecation.

Among individual toilets, only 39% of households have septic tank with soak pits, 4% have septic tanks without soak pits, 2% are directly connected to the drain. Sewage flows into septic tanks and soak pits, sullage into the drains and rivers Umkhrah and Umshyrpi. Further, local soil condition is not suitable for septic tank and soak pits.

Shillong Municipal Board operates a small public septic tank emptying/conservancy system. Outside SMB, it appears that most septic tanks are emptied manually. There is no separate disposal facility for hazardous, septic tank or conservancy wastes. These are dumped at the solid waste disposal site, together with the solid wastes

Page 490: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

1.4 Storm Water Drainage

Two major drainage channels, Rivers Umkhrah and Umshyrpi, controls the drainage pattern within GSPA. Rain water from houses, roads and land flow through existing primary, secondary and tertiary drains as well as through natural channels into these two major streams. These two rivers, both flowing from south-east to north-west direction, join with River Wah Ro Ro near Sonapani after Bidon and BishopFalls before Wah Ro Ro joins River Umiam further down stream. River Umiam feeds the Umiam Reservoir or the BarapaniLake located north of Shillong. The rivulets WahDemthring, WahNongrimbah flow towards southeast, while rivulets WahDiengLieng, Wah Um Jasai flow towards the west of the city.

The average rainfall is about 2100 mm, which is mostly from the southwest monsoon. Such heavy rainfall coupled with poor drainage often cause flash floods inundating the low lying areas in GSPA especially in the Polo Area, Pynthorumkhrah, Lawmali and Mawlai areas.

A socio-economic survey (SES) conducted in May 2005 under the Project Preparatory Technical Assistance (PPTA) provided by the Asian Development Bank (ADB) for preparation of North Eastern Region Urban Development Project indicates that 26.66 per cent of the population in Greater Shillong Planning Area (GSPA) were affected due to localized flooding, while another 24 percent reported stagnation of water. In GSPA, the soil formation is quite stable and less prone to landslides. However, due to increased developmental activities in the area have lead to instances of landslip in the past.

Table: Error! No text of specified style in document..4: Lengths of Storm Water Drains in Shillong

Sr. No. Category Length of drain in km 1. Primary 141.63 2. Secondary 122.97 3. Tertiary 73.14 4. Natural drains 52.98

Total 390.72 (Source: CDP for Shillong Feb’07)

Page 491: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Annex B: Appendix 4

Operator’s Bid

OPERATOR’S BID FOR A CONTRACT TO SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL

AREA. THE WORK INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 104.5M3/DAY AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING, TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION &

MAINTENANCE OF THE COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 492: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

[Note to Bidders: The Operator’s Bid shall contain the Technical Proposal and required as per ITB including Price Proposal]

Page 493: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Schedule - TERMS AND PROCEDURE OF PAYMENT

FOR A CONTRACT

SEPTAGE MANAGEMENT IN SHILLONG COVERING SHILLONG MUNICIPAL AREA. THE WORK

INCLUDES (I) DESIGN AND BUILD SEPTAGE WASTE TREATMENT PLANT OF CAPACITY 115M3/DAY

AND ALL APPURTENANT STRUCTURES AND ALLIED WORKS COMPLETE INCLUDING TESTING,

TRIAL RUN FOR 3 MONTHS AND COMMISSIONING OF THE PLANT TO THE SATISFACTION OF THE

ENGINEER (PERIOD OF COMPLETION - 12 MONTHS); (II) OPERATION & MAINTENANCE OF THE

COMPLETE WORKS OF SEPTAGE WASTE TREATMENT PLANT AND ALLIED WORKS FOR A PERIOD

OF 5 YEARS AT MAWIONG, SHILLONG, STATE OF MEGHALAYA, INDIA.

Page 494: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

ARTICLE 1. Terms And Procedure of Payment 1. 1 Mobilisation Advance:

Mobilisation advance equal to 10 % of the Design-Build Price as stipulated in the contract shall be paid to the Operator within 7 days of effective date of contract against ‘Bank Guarantee for Advance Payment’ for the same amount subject to the provisions of this Contract.

Repayment of Mobilisation advance: The Mobilization Advance paid to the Operator by the Owner shall be recovered commencing from the date on which the payment to the Operator has reached 20 % of the Value of Design, Build and Commissioning Services and shall be recovered at the rate of 15 % from each bill submitted by the Operator for payment. The entire amount of mobilization advance shall be recovered latest by the time payments up to 90 % of the Value of Design, Build and Commissioning Services have been claimed by the Operator.

1.2 Secured Advance:

Secured Advance for the following non-perishable materials brought to site:

a. STP – DG Set, pumps, motors, and transformers subject to acceptance of the rate by the Design, Build Operations Engineer; and

Secured advance will be limited to 60% of invoice value or market value whichever is lower and will be subject to following conditions:

a. The quantities of materials are not excessive and shall be used within a reasonable time (not exceeding 3 months) as determined by the Owner.

b. The materials are in accordance with the specifications.

c. The materials have been delivered to site and are properly stored and protected against damage or deterioration to the satisfaction of the Owner.

d. The Operator’s records of the requirement, orders, receipt and use of materials are kept in a form approved by the Owner and such records shall be available for inspection by the Owner.

e. The Operator has submitted with his monthly statement, the estimated value of the materials on site together with such documents as may be required by the Owner, for the purpose of valuation of materials and providing evidence of ownership and payment thereof.

f. Ownership of such materials shall be deemed to vest in the Owner for which the Operator has submitted an indemnity bond in an acceptable format.

Page 495: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Repayment of Secured advance: The secured advance shall be repaid from each succeeding monthly payments to the extent the materials (for which advance was previously paid) have been incorporated into the works.

2. Payment of Design-Build Price(STP)

Subject to the provisions of this Contract Agreement and in consideration of the Operator undertaking the implementation of the Project, the Operator shall be paid as per the terms of payment contained hereunder:

Design-Build Price shall be paid in monthly amounts equal to the percentage of the Design-Build Services that the Design-Build-Operations Engineer indicates in the Design-Build Engineer’s Statement were completed or supplied, as applicable, in the preceding month. The amount of payments for completion of each stage of works shall not exceed the amounts indicated below.

1.0 Mobilization Advance 10% as per Para 1 above

1A Civil works

(a) Completion of Design and detailed engineering

2% of Contract Price as per SN 1A of Price Schedule Part A

(b) After Completion of various stages of civil structures

Stage 1 20% of cost of itemised Contract Price as per SN 1A of Price Schedule Part A

Stage 2 30% of cost of itemised Contract Price as per SN 1A of Price Schedule Part A

Stage 3 20% of cost of itemised Contract Price as per SN 1A of Price Schedule Part A

Stage 4 13% of cost of itemised Contract Price as per SN 1A of Price Schedule Part A

(c) Finishing testing & commissioning,

15% of Contract Price as per SN 1A of Price Schedule Part A

1B Installation, testing and commissioning of Electro – mechanical and Instrumentation equipment and accessories. Power connection of required capacity including construction of electrical substation. Supply & Installation of as per required capacity Diesel Generating set

Completion of Design and detailed engineering

2% of Contract Price as per SN 1B of Price Schedule Part A

Supply & Installation of equipment including Completion of allied works for mechanical/electrical /instrumentation works

80% of cost of itemised Contract Price as per SN 1B of Price Schedule Part A

Testing at site 8% of cost of itemised Contract Price as per SN 1B of Price Schedule Part A

Page 496: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

Commissioning & Trial run 10% of cost of itemised Contract Price as per SN 1B of Price Schedule Part A

1C Ancillary works like approach roads, compound wall with gates, internal roads, area grading etc.

After Completion of each activity 90%

After commissioning & trial run 10%

2a. Description of various stages of construction of civil structures

Sl. No.

Stages of works

Completion stage Type of Civil Structures

1 Stage- 1 Completion of Excavation & construction of Foundation including bottom raft/ pile foundation with pile cap, columns etc.

All type of water storage tanks including all type of settling tanks/ basins, chlorination & de-chlorination tanks, sumps of sludge/ filtrate/ effluent pumping stations, open channels etc.

Completion up to Foundation & Columns/ beams/walls up to plinth level

Pumping stations, sludge pumping stations, filtrate pumping stations disinfection/ chlorination building, control rooms, Panel rooms etc.

2 Stage 2 Completion of side walls up to 60% height

All type of water storage tanks including chlorination & de-chlorination tanks, sumps of sludge/ filtrate/ effluent pumping stations, open channels etc.

Completion of super structures including columns, beams, walls, lintels, roof slab etc.

Pumping stations, sludge pumping stations, filtrate pumping stations disinfection/ chlorination building, control rooms, Panel rooms etc.

3 Stage 3 Completion of side walls up to 100% height

All type of water storage tanks including chlorination & de-chlorination tanks, sumps of sludge/ filtrate/ effluent pumping stations, open channels etc.

After completion of all required fittings, e.g. internal electrification, shutters, doors & windows & plastering etc.

Pumping stations, sludge pumping stations, filtrate pumping stations disinfection/ chlorination building, control rooms, Panel rooms etc.

4 Stage 4 Completion of all type of ancillary structures including

All type of water storage tanks including chlorination & de-chlorination tanks, sumps

Page 497: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

required interconnection with other units & any other required for completion of the structures.

of sludge/ filtrate/ effluent pumping stations, open channels etc.

Completion of ancillary structures roof treatment, plastering, flooring, cable trench, painting, varnishing, apron, drainage etc and any other work required for proper completion of the structure.

Pumping stations, sludge pumping stations, filtrate pumping stations disinfection/ chlorination building, control rooms, Panel rooms etc.

4. Payment of Annual Operations and Maintenance Price for treatment of sewage up to the Threshold Sewage Flow (Part B of price schedule) (For STP):

a. Subject to deduction of Liquidated damages for Operation determined in accordance with SCC 5.4, and other provisions of this Contract Agreement and in consideration of the Operator undertaking the implementation of the Project, Owner shall pay, from the Operations Starting Date to the Operator, Annual O&M Price in equal monthly instalments, as determined in accordance with the provisions of this Clause and other relevant provisions of this Contract Agreement. The O&M Prices in respect of Operation and Maintenance services shall be paid for a period of 5 years as equated monthly amounts. The monthly payments shall be taken as one twelfth of the Annual Operations and Maintenance Price payable by the Owner to the Operator.

b. In the event that the occurrence of the Operations Starting Date is delayed due to Owner or Force Majeure events, the Annual O&M Price shall be paid from the date of delayed Operations Start Date till the end of the Term (which shall be extended by the numbers of days of delay) so as to achieve total O&M period of 5 years.

5. Payment of Electricity Dues

a. Owner shall assist the Operator on best effort basis in obtaining such electricity required for the implementation of the Project (including Construction Period and Operation Period) and such assistance shall be subject to the terms and conditions as provided in this Clause.

b. The Parties hereby agree that the Bill for electricity usage by the Sewage Treatment Plant and SPSs (if applicable) during the Operations Period (the “Electricity Dues”), shall be paid by the Operator to the relevant utility.

8. Price adjustment for Energy Consumption

Owner shall pay O&M prices to the Operator subject to adjustments as per following sub-paragraphs. Adjustment shall not be made for variation in Electricity Tariff or cost of Diesel used in DG set for power consumption in excess of the Guaranteed Energy Consumption applicable for the treated level of effluent for STP and as applicable for respective SPSs.

Page 498: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

8.1 Adjustment for Variation in Electricity Tariff

O&M prices shall be subject to adjustment on account of variation in the Electricity Tariff during the O&M period with reference to ‘Base Rate of Electricity Tariff’ specified at the time of invitation of bids, namely INR6.50 per KWh. The said adjustment shall be determined on the basis of the actual electricity consumption and the Tariff evidenced by the Electricity bills paid by the Operator to the Electricity Utility Company, subject to the following provisions:

(a) Variation shall be limited to the Guaranteed Energy Consumption applicable for the level of effluent treated by STP, and for the level of effluent pumped by the respective SPSs during the quarter.

(b) Guaranteed Energy Consumption for the actual level of effluent handled by the STP and by the SPS(s) if any will be calculated based on the energy consumption/MLD for the relevant year of the O&M period as quoted in the Operator’s Price Schedule incorporated in Schedule 5 of the Contract.

The variation applicable as per this sub-paragraph 8.1 shall be claimed by the Operator on Quarterly basis.

8.2 Determination of cost of Diesel used in DG set

The Operator shall use back-up power supply from the DG set referred to in the preceding sub-paragraph during the period power supply from the Electricity Utility Company is not available. The DG set which shall be equipped with standard accessories will inter alia record (i) energy supplied/generated by it and (ii) total duration for which it was operated in a month/quarter. Cost of Diesel incurred by the Operator on account of energy obtained from the back-up power supply unit shall be determined as under:

a. Operator’s representative and the Design Build Operations Engineer shall jointly take the readings from the meters and gauges (sealed jointly by them at the commencement of the O&M period) of DG set every month to arrive at the total number of energy units (KWh) obtained from the back-up power supply unit.

b. Number of energy units (KWh) obtained from the back-up power supply unit during the month determined as per (a) above shall, however, be adjusted so that the ‘adjusted units of back-up energy supply’ shall not exceed the Guaranteed Energy Consumption applicable for the level of effluent treated by STP, and for the level of effluent pumped by the respective SPSs during the month minus units of energy (KWh) obtained during the month from the Electricity Utility Company as evidenced by the Bill of the Utility Company for the corresponding month.

c. Rated specific fuel consumption of the DG set specified by the Manufacturer in its Specifications will be adopted for determining the estimated diesel consumption during the month for producing the ‘adjusted units of back-up energy supply’.

d. Cost of estimated Diesel consumption in a month for producing the ‘adjusted units of back-up energy supply’ shall be based on the price of diesel prevailing at mid-point of the month in IOC or HPCL’s retail outlets in the cities where STP and each SPS is installed. Cost figures of three months shall be added to arrive at the Cost of Diesel consumption in a quarter.

Page 499: Government of Meghalaya - Shillongsmb.gov.in/notifications/BiddingDocs_28Apr17.pdf · to septage management in shillong covering shillong municipal area.the work includes (i) design

8.3 Adjustment in O&M Price for energy taken from the back-up power supply unit

O&M prices quoted in the Operator’s Price Schedule incorporated in Schedule 5 take into account energy requirements of the STP and each SPS being met fully from power supplied by the Electricity Utility Company. Compensation payable to the Operator for Energy supply taken from an alternate source, namely the back-up power supply Unit shall be corrected as under:

Adjustment in quarterly O&M price = Cost of Diesel consumption in a quarter determined in accordance with sub-paragraph 8.2 (d) above minus ‘adjusted units of back-up energy supply’ determined as per sub-paragraph 8.2 (b) as applicable for the quarter multiplied by the ‘Base Rate of Electricity Tariff’.

The variation in O&M price applicable as per sub-paragraphs 8.2 and 8.3 shall be claimed by the Operator on Quarterly basis.

9. Right to withhold:

The Design-Build-Operations Engineer / Owner may refuse to approve any such payment, because of subsequently discovered evidence as a result of subsequent inspections or tests, nullify any such payment previously approved and pay to such extent as may be necessary in the opinion of the Design Build Engineer because (a) the work is defective (b) third party claims have been filed or there is reasonable evidence indicating probability of such claims (c) of the Operator’s failure to make payment properly to sub-contractors or for labor, materials or equipment (d) of damage to another Operator or to the property of others caused by the Operator (e) of the Operator’s neglect or unsatisfactory proceeding of the work (f) Operator owes a liability or a sum to Owner.

When the grounds for withholding payments are removed, payments shall be made for amounts withheld to the extent the Operator is entitled to payment.