Final EIA Report of
Exploration and Development of drilling wells in the existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd. PROJECT PROPONENT
SUN PETROCHEMICALS PVT LTD (SUN OIL & NATURAL GAS DIVISION)
MUMBAI
Prepared By MANTEC CONSULTANTS PVT. LTD.
QCI/NABET Accredited EIA Consultant at S.No.100 as per List of Accredited consultant Organizations/Rev.67 /July 09, 2018 and MoEF & NABL approved
Laboratory
Environment Division, D-36, Sector-6, Noida-201 301, U. P., Ph. 0120-4215000, 0120-4215807 Fax. 0120-4215809,
E-mail: [email protected], [email protected]
Website: www.mantecconsultants.com
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Contents
CHAPTER-1 : INTRODUCTION ................................................................................................ 4
1.0 PREAMBLE ...................................................................................................................... 4
1.1 NEED OF THE PROJECT ....................................................................................................... 4 1.2 SCOPING OF THE PROJECT .................................................................................................. 4 1.3 ENVIRONMENTAL SENSITIVITY OF THE PROJECT ................................................................ 5 1.4 TERMS OF REFERENCE ............................................................................................................... 8
CHAPTER-2 : PROJECT DESCRIPTION ............................................................................... 16
2.1 PROJECT PROPONENT ....................................................................................................... 16 2.2 BRIEF DESCRIPTION OF THE PROJECT ............................................................................... 16 2.3 SALIENT FEATURES ................................................................................................................. 17 2.4 PROJECT BENEFITS ................................................................................................................. 18 2.5 LAND DETAILS OF THE PROJECT ................................................................................................. 18 2.6 DRILLING PLAN FOR BAOLA FIELD .............................................................................................. 19 2.6.1 DRILLING AND COMPLETION ............................................................................................................ 19 2.6.2 WELL DRILLING STRATEGY .............................................................................................................. 19 2.7 WELL EVALUATION ................................................................................................................ 21 2.8 COMPLETION OF DRILLING ....................................................................................................... 21 2.9 RIG DEMOBILIZATION ............................................................................................................. 22 2.10 RESTORATION AND REHABILITATION ......................................................................................... 22 2.11 STAFFING ........................................................................................................................... 22 2.12 SUPPLIES DURING WELL DRILLING ............................................................................................ 22 2.13 WASTE STREAMS ................................................................................................................. 24 2.14 PRODUCED OIL AND GAS HANDLING, PROCESSING AND STORAGE ................................................... 25 2.15 PIPELINES NETWORK & DETAILS ............................................................................................... 27
CHAPTER-3 : DESCRIPTION OF ENVIRONMENT ......................................................................... 30
3.1 OVERVIEW ........................................................................................................................... 30 3.2 SITE DESCRIPTION AND ITS ENVIRONMENT ................................................................................... 30 3.3 STATE OF THE ENVIRONMENT (REGIONAL) ................................................................................... 33 3.3.1 TOPOGRAPHY & GEOLOGY .............................................................................................................. 33 3.3.2 CLIMATE ...................................................................................................................................... 34 3.3.3 SEISMIC CONSIDERATIONS .............................................................................................................. 34 3.4 STATE OF THE ENVIRONMENT (LOCAL) ........................................................................................ 35 3.4.1 MICRO-METEOROLOGY .................................................................................................................. 35 3.4.2 TOPOGRAPHY ............................................................................................................................... 36 3.4.3 LAND USE .................................................................................................................................... 36 3.4.4 SOIL ENVIRONMENT.................................................................................................................. 37 3.4.5 AIR ENVIRONMENT ........................................................................................................................ 38
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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3.4.6 NOISE ENVIRONMENT .................................................................................................................... 48 3.4.7 WATER ENVIRONMENT .................................................................................................................. 49 3.4.8 BIOLOGICAL ENVIRONMENT ............................................................................................................ 58 3.4.9 SOCIO-ECONOMIC ENVIRONMENT ................................................................................................... 69
CHAPTER-4 : ANTICIPATED ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES .............. 85
4.1 IMPACTS ........................................................................................................................... 85 4.1.1 THE MAJOR ACTIVITIES THAT MAY HAVE IMPACT ON ENVIRONMENT ..................................................... 86 4.2 ASSESSMENT OF IMPACTS AND MITIGATION MEASURES.................................................................. 87 4.2.1 PHYSICAL PRESENCE ....................................................................................................................... 87 4.2.2 NOISE AND VIBRATION ................................................................................................................... 87 4.2.3 AIR ENVIRONMENT ........................................................................................................................ 89 4.2.4 WATER ENVIRONMENT .................................................................................................................. 98 4.2.5 SOLID AND HAZARDOUS WASTE IMPACTS .......................................................................................... 99 4.2.6 SOCIO-ECONOMIC ENVIRONMENT ................................................................................................. 100 4.3 IMPACT ON ECOLOGY............................................................................................................ 102 4.3.1 PROPOSED MITIGATING MEASURES ............................................................................................... 104
CHAPTER-5 : ANALYSIS OF ALTERNATIVES .............................................................................. 106
CHAPTER-6 : ENVIRONMENT MONITORING PROGRAM .......................................................... 107
6.1 ENVIRONMENTAL MONITORING SCHEDULE ................................................................................ 108 6.2 MONITORING OF VARIOUS PARAMETERS................................................................................... 114 6.3 REPORTING SCHEDULE OF MONITORING DATA ........................................................................... 115
CHAPTER-7 : ADDITIONAL STUDIES ........................................................................................ 116
7.1 RISK ASSESSMENT ................................................................................................................ 116 7.1.1 CONSEQUENCE ANALYSIS .............................................................................................................. 121 7.1.2 HAZARDS ASSOCIATED WITH EXPLORATORY DRILLING ........................................................................ 122 7.1.3 BLOWOUTS DURING DRILLING / TESTING OPERATIONS ...................................................................... 122 7.1.4 TOP RISK CONTRIBUTORS (GROUP RISK) .......................................................................................... 126 7.1.5 CONCLUSIONS AND RECOMMENDATIONS ........................................................................................ 127 7.1.6 GENERAL RECOMMENDATIONS ...................................................................................................... 128 7.2 OIL SPILL EMERGENCY PLAN ................................................................................................... 128 7.3 CORPORATE SOCIAL RESPONSIBILITY (CSR) ................................................................................ 131 7.3.1 CONCLUSION .............................................................................................................................. 132 7.4 PUBLIC HEARING ................................................................................................................. 132
CHAPTER-8 : PROJECT BENEFITS ............................................................................................. 138
8.1 DEMAND-SUPPLY GAP .......................................................................................................... 138 8.2 IMPORTS VS. INDIGENOUS PRODUCTION .................................................................................... 138 8.3 EXPORT POSSIBILITY ............................................................................................................. 138
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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8.4 DOMESTIC/ EXPORT MARKETS ................................................................................................ 138 8.5 EMPLOYMENT GENERATION ................................................................................................... 138
CHAPTER-9 : ENVIRONMENTAL MANAGEMENT PLAN ............................................................ 140
9.1 GENERAL ........................................................................................................................... 140 9.1.1 HSE POLICY OF BLOCK OPERATOR ........................................................................................ 140 9.1.2 ORGANIZATIONAL STRUCTURE AND RESPONSIBILITIES ........................................................................ 141 9.1.3 ORGANIZATIONAL RESPONSIBILITIES ............................................................................................... 142 9.2 MITIGATION PLAN ............................................................................................................... 143 9.3 WASTE MANAGEMENT PLAN .................................................................................................. 155 9.3.1 TYPES OF WASTE ......................................................................................................................... 155 9.3.2 SOURCES OF WASTE .................................................................................................................... 156 9.3.3 COLLECTION OF THE WASTE .......................................................................................................... 157 9.3.4 SEGREGATION AND STORAGE......................................................................................................... 157 9.3.5 WASTE DISPOSAL.................................................................................................................... 158 9.3.6 RECORD KEEPING ........................................................................................................................ 159 9.4 RESTORATION AND REHABILITATION ........................................................................................ 165 9.4.1 WELL ABANDONMENT ................................................................................................................. 165 9.4.2 WELL SUSPENSION ...................................................................................................................... 166 9.5 GREENBELT DEVELOPMENT .................................................................................................... 166 9.6 SAFETY DURING DREDGING OPERATION ..................................................................................... 167 9.6.1 DISASTER MANAGEMENT PLAN.............................................................................................. 167 9.7 EFFLUENTS AND SOLID WASTE ................................................................................................ 173 9.7.1 DRILL CUTTINGS, WASTE MUD, SLUDGE AND WASTEWATER .............................................................. 174 9.7.2 FUELS AND CHEMICALS ................................................................................................................. 174 9.7.3 USED OIL AND FILTERS ................................................................................................................. 175 9.7.4 SEWAGE .................................................................................................................................... 175 9.7.5 MEDICAL WASTE ......................................................................................................................... 175 9.7.6 CAMP WASTE ............................................................................................................................. 175
CHAPTER-10 : CONCLUSIONS ................................................................................................. 177
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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LIST OF TABLES
TABLE 1.1: STATUTORY REQUIREMENTS ................................................................................................... 5 TABLE 1.2: ENVIRONMENTAL SENSITIVITY.............................................................................................. 5 TABLE 1.3: POINT-WISE COMPLIANCE OF PRESCRIBED TOR .............................................................. 8 TABLE 2.1 : SALIENT FEATURE OF THE PROJECT .................................................................................. 17 TABLE 3.1: LANDUSE/LANDCOVER .......................................................................................................... 36 TABLE 3.2: SOIL ANALYSIS ........................................................................................................................... 37 TABLE 3.3: AMBIENT AIR QUALITY DATA OF BADARKHA ................................................................ 41 TABLE 3.4: AMBIENT AIR QUALITY DATA OF BAOLA ......................................................................... 42 TABLE 3.5: AMBIENT AIR QUALITY DATA OF RASAM ......................................................................... 43 TABLE 3.6: AMBIENT AIR QUALITY DATA OF PROJECT SITE ............................................................. 44 TABLE 3.7: AMBIENT AIR QUALITY DATA OF RUPAL .......................................................................... 44 TABLE 3.8: AMBIENT AIR QUALITY DATA OF ZEKADAA ................................................................... 45 TABLE 3.9: AMBIENT AIR QUALITY DATA OF KERALA ....................................................................... 46 TABLE 3.10: AMBIENT AIR QUALITY DATA OF BHAYALA ................................................................. 47 TABLE 3.11: NOISE RESULTS ......................................................................................................................... 48 TABLE 3.12: SURFACE WATER QUALITY RESULTS ................................................................................ 50 TABLE 3.13: GROUND WATER SAMPLING RESULTS ............................................................................. 53 TABLE 3.14: GROUND WATER SAMPLING RESULTS ............................................................................. 55 TABLE 3.15:LARGE TREES SPECIES FOUND IN STUDY AREA ............................................................. 59 TABLE 3.16: SHRUBS FOUND IN STUDY AREA ........................................................................................ 60 TABLE 3.17:HERBS AND GRASSES FOUND IN STUDY AREA............................................................... 60 TABLE 3.18:AGRICULTURAL CROPS FOUND IN STUDY AREA .......................................................... 63 TABLE 3.19:AMPHIBIAN IN STUDY AREA ................................................................................................ 65 TABLE 3.20:REPTILES IN STUDY AREA ...................................................................................................... 65 TABLE 3.21:BIRDS SPICES FOUND IN STUDY AREA ............................................................................... 65 TABLE 3.22: MAMMALS IN STUDY AREA ................................................................................................. 66 TABLE 3.23:INSECTS IN STUDY AREA ........................................................................................................ 66 TABLE 3.24: TABLE: LAND USE PATTERN OF THE STUDY AREA ...................................................... 69 TABLE 3.25: LIST OF VILLAGES IN THE STUDY AREA ........................................................................... 71 TABLE 3.26: DEMOGRAPHIC PARTICULARS/POPULATION DETAILS OF THE STUDY AREA .. 72 TABLE 3.27: VILLAGE WISE POPULATION DISTRIBUTION WITH SEX RATIO ................................ 74 TABLE 3.28: VILLAGE WISE SCHEDULED TRIBE POPULATION DISTRIBUTION WITH SEX
RATIO ........................................................................................................................................................ 76 TABLE 3.29 :HABITATIONS WISE WORKING POPULATION................................................................ 80 TABLE 3.30: BASIC AMENITIES AVAILABLE IN THE STUDY AREA ................................................... 82 TABLE4.1: IMPACT MATRIX ......................................................................................................................... 85 TABLE 4.2: OCCUPATIONAL AND HUMAN EXPOSURE LEVELS ....................................................... 88 TABLE 4.3: PREDICTED GLCS DUE TO FLARING .................................................................................... 90 TABLE 4.4: STACK & EMISSIONS CHARACTERISTIC ............................................................................. 94 TABLE 4.5: PREDICTED MAXIMUM GLCS DUE TO DG SET .................................................................. 94 TABLE 6.1: RECOMMENDED ENVIRONMENTAL MONITORING PROTOCOL – PRE DRILLING
PHASE ..................................................................................................................................................... 108 TABLE 6.2: RECOMMENDED ENVIRONMENTAL MONITORING PROTOCOL - DURING
DRILLING PHASE ................................................................................................................................. 110 TABLE 6.3: RECOMMENDED ENVIRONMENTAL MONITORING PROTOCOL - POST DRILLING
.................................................................................................................................................................. 112 TABLE 6.4: BUDGET FOR ENVIRONMENTAL MONITORING PROGRAM ...................................... 115 TABLE 7.1: OIL SPILL EMERGENCY RESPONSE PROCEDURE ........................................................... 129 TABLE 9.1: ENVIRONNEMENTAL MANAGEMENT PLAN - MITIGATION MANAGEMENT
MATRIX................................................................................................................................................... 143
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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TABLE 9.2: ENVIRONMENTAL MANAGEMENT PLAN - MITIGATION MANAGEMENT MATRIX (DURING DRILLING PHASE) ......................................................................................... 145
TABLE 9.3 QUANTITY OF WASTE TO BE GENERATED PER YEAR .................................................. 156 TABLE 9.4: WASTE MANAGEMENT PLAN ............................................................................................. 159 TABLE 9.5: ONSHORE DISCHARGE STANDARDS FOR LIQUID EFFLUENT FROM OIL DRILLING
.................................................................................................................................................................. 164 TABLE 9.6:CONTROL AND ACTION PLAN OF THE INCIDENTS ...................................................... 172 TABLE 9.7: QUANTITY OF SOLID WASTE GENERATED ...................................................................... 175
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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LIST OF FIGURES
FIGURE1.1: ENVIRONMENTAL SENSITIVITY MAP ..................................................................................... 7 FIGURE 2.1: LOCATION MAP OF THE PROJECT ..................................................................................................... 17 FIGURE 2.2: TYPICAL WELL SCHEMATIC ............................................................................................................... 20 FIGURE 2.3: TYPICAL OPTION 1 AT ONGC INSTALLATION .................................................................................... 26 FIGURE 2.4: TYPICAL OPTION 2 AT GWHI FOR DELIVERY POINT & CUSTODY TRANSFER ..................................... 27 FIGURE 2.5: TENTATIVE PIPING NETWORK FOR BAOLA FIELD ............................................................................. 28 FIGURE 2.6: TENTATIVE GAS FLARING SYSTEM .................................................................................................... 29 FIGURE 3.1:STUDY AREA MAP OF 10 KM RADIAL ZONE ....................................................................................... 31 FIGURE 3.2: SITE FACILITIES .................................................................................................................................. 32 FIGURE 3.3: GEOLOGICAL MAP OF GUJARAT ....................................................................................................... 33 FIGURE 3.4: SEISMIC ZONING MAP OF INDIA ....................................................................................................... 34 FIGURE 3.5: WINDROSE DIAGRAM ....................................................................................................................... 35 FIGURE 3.6: LAND USE MAP OF BAOLA FIELD ...................................................................................................... 36 FIGURE 3.7: SOIL SAMPLING LOCATIONS ............................................................................................................. 37 FIGURE 3.8: AIR QUALITY MONITORING LOCATIONS ........................................................................................... 41 FIGURE 3.9: NOISE MONITORING LOCATIONS ..................................................................................................... 48 FIGURE 3.10: SURFACE WATER SAMPLING LOCATIONS ....................................................................................... 49 FIGURE 3.11: GROUND WATER SAMPLING LOCATIONS ....................................................................................... 52 FIGURE 3.12: FOREST MAP OF GUJARAT (SOURCE: INTERNET) ........................................................................... 68 FIGURE 3.13: MAP OF NATIONAL PARKS AND WILDLIFE SANCTUARIES IN GUJARAT (SOURCE: INTERNET) ....... 68 FIGURE 4.1: GLC OF SO2 (24 HOURS) DURING FLARING ...................................................................................... 91 FIGURE 4.2: GLC OF NO2 (24 HOURS)DURING FLARING ...................................................................................... 92 FIGURE 4.3: GLC OF CO (1 HOUR)DURING FLARING ............................................................................................. 93 FIGURE 4.4: GLC OF CO (1 HOUR)DURING DG SET OPERATION ........................................................................... 95 FIGURE 4.5: GLC OF NO2 (24 HOUR)DURING DG SET OPERATION ....................................................................... 96 FIGURE 4.6: GLC OF PM (24 HOUR)DURING DG SET OPERATION ........................................................................ 97 FIGURE 9.1: FLOW CHART FOR WASTE MANAGEMENT ..................................................................................... 158 FIGURE 9.2: WATER BALANCE FOR DRILLING ..................................................................................................... 174
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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LIST OF ANNEXURE
ANNEXURE A: APPROVED TOR
ANNEXURE B: PSC DOCUMENT
ANNEXURE C: PETROLEUM MINING LEASE DOCUMENT
ANNEXURE D: PREVIOUS ENVIRONMENTAL CLEARANCE LETTER
ANNEXURE E: TRANSFER OF ENVIRONMENTAL CLEARANCE LETTER
ANNEXURE F: TRANSFER OF THE ASSIGNMENT OF EXPLORATION, DEVELOPMENT,
PRODUCTION, AND SALE OF PRODUCTS.
ANNEXURE G: QCI/NABET CERTIFICATE OF THE CONSULTANT
ANNEXURE H: NABL CERTIFICATE OF THE LAB
ANNEXURE I: MOEF CERTIFICATE OF THE LAB
ANNEXURE J: CORPORATE ENVIRONMENTAL POLICY OF SUN PETRO
ANNEXURE K: MATERIAL SAFETY DATA SHEET
ANNEXURE L: COMMITMENT FOR THE USE OF WBM
ANNEXURE M: HSE POLICY OF SUN PETRO
ANNEXURE N: ENVIRONMENT ASPECT – IMPACT ASSOCIATED WITH PROJECT
ANNEXURE O: SAFETY MANAGEMET PLAN
ANNEXURE P: RISK REGISTER
ANNEXURE Q: EMERGENCY RESPONSE PLAN
ANNEXURE R: CONTRACTOR`S EMPLOYEE SAFETY
ANNEXURE S: PERMIT TO WORK
ANNEXURE T: TSDF AND CETP CERTIFICATES
ANNEXURE U: Proceedings of the public hearing
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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UNDERTAKING
The Environmental Impact Assessment Report and Environment Management Plan of
Exploration and Development of Drilling Wells in the Existing PMLarea (PML 4 sq.km)
of Baola Field at Village Salajada, Tehsil Bavla, District Ahmedabad, and Gujarat by M/s
Sun Petrochemicals Pvt. Ltd are sole property of the Sun Petrochemicals Pvt. Ltd (Sun Oil
& Natural Gas Division) Mumbai.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page ix
DECLARATION OF CONSULTANTS
Declaration by Experts contributing to the EIA of Exploration and Development of
Drilling Wells in the Existing PMLarea (PML 4 sq.km) of Baola Field at Village - Salajada,
Tehsil - Bavla, District- Ahmedabad, Gujarat.
I, hereby, certify that I was a part of the EIAEMP team in the following capacity that
developed theabove EIA.
EIA Coordinator:
Name:B.M.Sinha
Signature & Date: March2018
Period of Involvement: September 2017– Present
Contact Information: Mantec Consultants, D-36, Sector-06, Noida-201301
(0120-4215000/804)
Functional Area Experts:
S.No. Functional
Areas
Name of the
Experts
Involvement
(Period & Task*)
Signature & Date
1. AP* Mr. S.B.
Sinha
Consultancy provided in
functional area of Air Pollution
Prevention, Monitoring & Control.
(Nov-Dec 2017)
12.03.2018
2. WP* Mr. S.B.
Sinha
Consultancy provided in
functional area of Water Pollution
Prevention, Control & Prediction
of impacts. (Nov-Dec 2017)
12.03.2018
3. SHW* Mr. S.B.
Sinha
Consultancy provided in
functional area of Solid Waste &
Hazardous Waste Management.
(Nov-Dec 2017)
12.03.2018
4. SE* Mr. Anil
Kumar
Consultancy provided in
functional area of Socio
Economics.( (Nov-Dec 2017)
12.03.2018
5. EB* Mr. Vivek
Dwivedi
Consultancy provided in
functional area of Ecology &
Biodiversity.( (Nov-Dec 2017)) 12.03.2018
6. HG* Mr. R. K.
Khanna
Consultancy provided in
functional areas of Hydrology,
Ground Water & Water
Conservation. ((Nov-Dec 2017)) 12.03.2018
7. GEO* Mr. B.M.
Sinha
Consultancy provided in
functional area of Geology. (Nov-
Dec 2017)) 12.03.2018
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page x
8. SC* Dr. Vivek
Dwivedi
Consultancy provided in
functional area of Soil
Conservation. ((Nov-Dec 2017)) 12.03.2018
9. AQ* Mr. S.B.
Sinha
Consultancy provided in
functional area of Meteorology,
Air Quality Modeling &
Prediction.((Nov-Dec 2017)) 12.03.2018
10. NV* Mr. A.S.
Brara
Consultancy provided in
functional area of Noise study.
((Nov-Dec 2017)) 12.03.2018
11. LU* Mr. Deepak
Srivastav
Consultancy provided in
functional area of Land Use.
(Nov-Dec 2017) 12.03.2018
12. RH* Ms Anuradha
Sharma
Consultancy provided in
functional area of Risk& Hazards.
(Nov-Dec 2017) 12.03.2018
Declaration by the Head of the Accredited Consultant Organization
I, A. S. Brara, hereby, confirm that the above-mentioned experts prepared theEIA EMP
Report of Exploration and Development of Drilling Wells in the Existing PML area (PML
4 sq.km) of Baola Field at Village - Salajada, Tehsil - Bavla, District- Ahmedabad, Gujarat.
I also confirm that I shall be fully accountable for any mis-leading information mentioned in
this statement.
Signature :
Name : Mr. A.S. Brara
Designation : CMD
Name of the EIA Consultant Organization: Mantec Consultants Pvt. Ltd., Noida-201301
NABET Certificate No. & Issue date:S.No. 99/ Rev. 63/March05, 2018
S.No. Functional Area Code Complete name of the Functional Areas
1. AP Air Pollution Prevention, Monitoring & Control
2. WP Water Pollution Prevention, Control & Prediction of impacts
3. SHW Solid Waste & Hazardous Waste Management
4. SE Socio-Economics
5. EB Ecology & Biodiversity
6. HG Hydrology, Ground Water & Water Conservation
7. GEO Geology
8. SC Soil Conservation
9. AQ Meteorology, Air Quality Modeling & Prediction
10. NV Noise/Vibration
11. LU Land Use
12. RH Risk Assessment & Hazard Management
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 1
Executive Summary
M/s Sun Petrochemicals Private Limited (SunPetro) Company is engaged in the business of
Exploration and Production of Crude Oil and Natural Gas. The company holds mining lease
for Baola field in Gujarat for exploration and production under Production Sharing Contracts
(PSC) signed with the Government of India. Earlier, Government of India had awarded the
Baola field to Interlink Petroleum Limited (IPL) under production sharing contract (PSC) for
expeditious exploitation of hydrocarbon. Based on the interpretation of 3D data, one appraisal
well Baola#8 was drilled in 2010-11 by IPL. PSC for Baola field was transferred to SunPetro
on 10th
Jun,2016 by Ministry of Petroleum and Natural Gas (MoPNG), Government of India.
Mining Lease for Baola Field was transferred and re-granted to SunPetro from
InterlinkPetroleum Limited (IPL) on 13th
Feb, 2017 by State Government.
The application for obtaining ToR to the project was submitted to MoEF&CC, New Delhi on
06th
Feb 2018 vide their letter no Sunpetro/Song/Baola(MU)/E&P/MoEF/2018/281 dated 30th
January 2018.
The project was granted Standard ToR by MoEF&CC, New Delhi on 11th
March 2018 vide
its File No No.IA-J-11011/522/2017-IA-II(I).
The proposed project is a drilling project, which will use water-based mud during drilling
operation. The expected production of hydrocarbon is 200 barrels per day of crude oil.
The baseline data for the project was collected in the post monsoon season from October
2017 to December 2017. The air monitoring stations were selected in Project Site ,
Badarkha,Baola,Rasam,Rupal,Zekadaa,Kerala and Bhayal. The concentration of PM10, PM2.5,
SO2, NO2, CO were found in the range of 96-52 µg/m3, 57-24 µg/m
3, 14-5 µg/m
3, 26-13
µg/m3 and 1 -0.52 mg/m
3 respectively. The presence of Hydrocarbon, Non-Methane Hydro
Carbon and Volatile Organic Compounds were not found in the study area. The air quality
modelling was carried out for both the scenario of DG set operation and Flaring operation. It
was observed that flaring will not affect the baseline environment as it adds very little amount
of pollutants as compared to the exisintg baseline concentration. The results are given below:
S.No. Pollutants Incremental
value, µg/m3
Baseline Data,
Max, µg/m3
GLC, µg/m3 Standards
(NAAQS)
µg/m3
1 NO2 (24 hr) 1.76 26 27.76 80
2 SO2(24 hr) 0.016 14 14.016 80
3 CO (1 hr) 55 1000 1055 4000
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 2
Similarly for the DG set, the GLCs were found in the range of NAAQS 2009.
Parameter Incrmental
Concentration
(g/ m3)
Baseline Data,
Max, µg/m3
GLCs, µg/m3 Standards
(NAAQS)
µg/m3
NO2(24 hr) 24.1 26 50.1 80
PM(24 hr) 1.22 96 96.122 100
CO (1 hr) 147 1000 1147 4000
The baseline data for ground water and surface water have also been collected from the
nearby villages. Total five surface water and ten ground water locations were identified for
the sampling. The total coliform and faecal coliforms (MPN/100 ml) were found in the range
of 545-365 and 147-85 respectively. However, in ground water no coliforms were observed.
The overall surface and ground water qualities are found within the range of drinking water
standards except MPN in surface water. Presence of MPN in surafce water can be inferred
that the surface runoff adds faecal matter to the surface water and so the coliforms.
The noise sampling was done in 8 locations in the 1 km area of the project. The baseline
noise are found in day and night in the range of 62.4 – 44.6 dB(A) and 48.6 – 38.2 dB(A).
The soil samples were collected from five sampling location in the study area. The analysis
of soil clearly indicates that teh soil is primarily sandy loam in nature. Sodium absorption
ratio is found in the range of 1.08 to 0.55. CEC is found between 9.18-8.24 meq/100gm while
the NPKs are found in the range of 22.8-18.2 mg/100gm, 0.96 – 0.76 mg/100gm and 0.9-2.3
mg/100gm respectively.
The project village Salajada located at Baola sub-districtwith 321 households having
population of 1,423 with 736 males and 687 females forming the sex ratio of the village 933
females per 1,000 males. In the village about 12.7 per cent population belongs to (0-6) age
group having sex ratio of 828 boys per 1,000 girl child. The literacy rate in the project village
is 75.4 per cent with 86.7 per cent male and 63.6 per cent female literacy rate. Out of the total
population of the village, about 44.4 per cent are working and remaining 55.6 per cent are
non-working population. The project village has a government primary school, a primary
health sub-centre and a family welfare centre. The village is connected with the roads which
are black topped (pakka), gravel (kachcha) and footpath facilitated with public bus services,
auto & taxi services. The people of the project village mostly used Tap and Tank as a sources
for drinking water.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 3
The total number of personnel involved in the site construction and Drilling activities is
expected to be between aprox.50 and aprox. 80 respectively. Total water requirement is 25
m3/day. The estimated cost of the proposed project is INR 32 million per well and the project
period is six months. The project would generate employment to the local persons and once
the production starts, it will improve the economy of the area and state as well. Proper
mitigation measure and management practices will be used to cater the need of environment
protection. Environmental Monitoring shall be done on regular basis and six months
compliance will be submitted to the Regional Office of MoEF&CC. A budget of Rs
43,30,000/- is earmarked for the EMP.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 4
CHAPTER-1 : Introduction
1.0 Preamble
Environmental Impact Assessment (EIA) is the management tool to ensure the sustainable
development and it is a process, used to identify the environmental, social, and economic
impacts of a project prior to decision-making. It is a decision making tool, which guides the
decision makers in taking appropriate decisions for any project. EIA systematically examines
both beneficial and adverse consequences of the project and ensures that these impacts
aretaken into account during the project designing. It also reduces conflicts by promoting
community participation, information, decision makers, and helps in developing the base for
environmentally sound project. In order to assess the likely impacts arising out of the project,
the Environmental Impact Assessment (EIA) study is undertaken, which will be followed by
preparation of an Environmental Management Plan (EMP) to minimize those adverse
impacts. All the proposed activities shall be commenced at site only after obtaining necessary
approvals from concerned authorities i.e. MoEF&CC /SEIAA and SPCB.
1.1 Need of the Project
With the additional wells at Baola Field, present crude oil and gas production is expected to
be increased which would contribute in the development of the country and the local area.The
increased production would generate additional revenue for the State Government as well as
for the Central Government by way of payments because of Royalty, CESS, and taxation.
This will also assist in the economic development of this less developed area in Gujarat by
means of generating direct and indirect employment opportunities for the local people of the
region.
1.2 Scoping of the Project
The project envisages monetization of Baola Oil & Gas field .The proposed wells in Baola
Field would be connected for production to Group Well Head Installation Facility (GWHI)
very near to the wells. From GWHI, the Crude Oil will be transferred to the nearest ONGC
processing facility (Nawagaon) for treatment of the crude to be sold to Indian Oil Corporation
limited (IOCL) or to small private buyers as per the PSC terms. SunPetro will sell the gas (if
found economical after testing) in the local market.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 5
Detailsof Statutory requirements are given below:
Table 1.1: Statutory Requirements S.No Particulars Letter No and Date
1 Approved ToR MoEF&CC File No.IA-J-11011/522/2017-IA-II(I) date
11.03.2018 (Enclosed as Annexure-A)
2 Production
Sharing
Contract
The DGH, MPNG, GoI has issued PSC vide its letter
DGH/PF/Baola/PI/PSC Amendment No-1/2016 dated
10.06.2016.(Enclosed as Annexure-B)
3 Petroleum Mining
Lease
No. PML-10-2008-940-E dated 13.02.2017
(Enclosed as Annexure-C)
4 Earlier
Environmental
Clearance
F.No. J-11011/729/2009-IA II (i) dated 19.08.2010 (Enclosed as
Annexure-D)
5 Transfer of EC EC is transferred vide MoEF&CC File No J-11011/729/2009-IA
II (i) dated 28.02.2018.(Enclosed as Annexure-E)
6 Transfer of the
Assignment of
Exploration,
Development,
Production and
Sale of Products
MoPNG File No O-19025.4/2010(Part)-ONG-D-V dated 18th
March 2016 (Enclosed as Annexure-F)
1.3 Environmental Sensitivity of the Project
Environmental sensitivity of the project, which includes important ecological features and
social infrastructures within 10 km radius from the Baola field, is given below in Table 1.2.
Table 1.2: Environmental Sensitivity
S.No. Sensitive Ecological
Feature
Name Aerial Distance (in
km.) from Mine
Lease boundary
1 National Park / Wildlife
Sanctuary
None -
2 Reserve forests None -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 6
3 Tiger Reserve/Elephant
Reserve / Turtle Nesting
Ground
None -
4 Core Zone of Biosphere
Reserve
None -
5 Habitat for migratory birds None -
6 Lakes/Reservoir/Dams Lake in Juwal
Pond in Baola
9.5 km NW
5 km NW
7 Stream/Rivers None -
8 Estuary/Sea None -
9 Mangroves None -
10 Mountains/Hills None -
11 Notified Archaeological
sites
None -
12 Industries/Thermal Power
Plants
None -
13 Defense Installation None -
14 Airports Ahmedabad Airport 50 kms
15 Railway Lines Bavla Railway Station 8 km
16 National / State Highways SH 144
SH 74
SH 4
NH 8A
3 KM North
Passing through
the field
6 km East
5 km NW
17 Important worship place Mahdavia Masjid, Rupal
Shri Swaminarayan Mandir,
Radhanpuri
Tajdare Madina Masjid,
Radhanpuri
Chachravadi Maa Temple
1.25 km SW of oil
field
9.5 km SE of Oil
Field
9.6 km SE of Oil
Field
9.6 KM North East
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 7
Figure1.1: Environmental Sensitivity Map
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 8
1.4 Terms of Reference
The application for obtaining ToR for the project of “Exploration and Development of
drilling wells in the existing PML area(PML 4 sq. km) of Baola field at village- Salajada,
Tehsil – Bavla, District- Ahmedanad, Gujarat has been submitted by M/s Sun Petrochemicals
Pvt. Ltd. was submitted to MoEF&CC, New Delhivide their letter no
Sunpetro/Song/Baola(MU)/E&P/MoEF/2018/281 on 30th
January 2018.
The project was granted Standard ToR by MoEF&CC, New Delhi on 11th
March 2018 vide
its File No No.IA-J-11011/522/2017-IA-II(I).
The point-wise compliance of the TOR is given in Table-1.3 as under:-
Table 1.3: Point-Wise Compliance of Prescribed ToR
S. No. ToR POINT COMPLIANCE
1 Executive summary of the
project
Executive Summary is given from Page No 1 to
Page No. 3.
2 Project description, project
objectives, and project
benefits.
Project description : Drilling wells in Baola
field by M/s Sun Petrochemicals Private Limited
(SunPetro) company in Baola Oil/Gas field in
District: Ahmedabad, State: Gujarat. Baola field
covering an area of 4 sq. km.Number of Existing
Wells are 3 whereas new wells are proposed for
drilling.
Proposed Objectives: The project envisages
monetization of Baola Oil & Gas field .The
proposed wells in Baola Field will be connected
for production to Group Well Head Installation
Facility (GWHI) very near to the wells. From
GWHI, the Crude Oil will be transferred to
the nearest ONGC processing facility
(Nawagaon) for treatment of the crude to be sold
to Indian Oil Corporation limited (IOCL) or to
small private buyers as per the PSC terms.
SunPetro will sell the gas in the local market.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 9
Project benefits: The project is fulfillment of the
Production Sharing Contract between the
Company (Sun Petro) and Directorate General of
Hydrocarbon, Govt. of India. It is one of the
prospective aeas for natural gases by Ministry of
Petroleum and Natural Gas, Govt. of India. The
viability of the drilling wells will add onto the
natural resources in national level with overall
growth in Indian economy.
(Details are given in Page No 16 – Page No 18).
3 Cost of project and period of
completion
The estimated cost of the proposed project is INR
32 million per well and the project period is six
months (Page No 18).
4 Site details within 1 km of the
each proposed well, any
habitation, any other
installation/activity, flora and
fauna, approachability to site,
other activities including
agriculture/land, satellite
imagery for 10 km area. All
the geological details shall be
mentioned in the Topo sheet of
1:40000 scale, superimposing
the well locations and other
structures of the projects.
Topography of the project site.
Environmental Sensitive Map and Study Area
Map of 10 km Radial Zone given in Figure 1.1
(Page No 7) and Figure 3.1 (Page No 31)
respectively.
5 Details of sensitive areas such
as National Park, Wildlife
sanctuary and any other eco-
sensitive area alongwith map
indicating distance.
Environmental Sensitivity (within 10 km study
area) is given in Table 1.2 (Page No 5).
Environmental Sensitivity Map is given in
Figure 1.1 (Page No 7).
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 10
6 Approval for the forest land
from the State/Central Govt.
under Forest (Conservation)
Act, 1980, if applicable.
Forest Land is not involved.
7 Recommendation of
SCZMA/CRZ clearance as per
CRZ Notification dated 6th
January, 2011 ( if applicable)
Not applicable
8 Distance from nearby
critically/severely polluted
area as per Notification, if
applicable. Status of
moratorium imposed on the
area.
Not applicable
9 Does proposal
involverehabilitation and
resettlement? If yes, details
thereof
No
10 Environmental considerations
in the selection of the drilling
locations for which
environmental clearance is
being sought. Present any
analysis suggested for
minimizing the footprint
giving details of drilling and
development options
considered.
The proposed project is an existing oilfield for
which the PML is granted to Sun Petro vide its
letter PML-10-2008-940-E dated 13.02.2017.
Drilling plan for Baola field is given in Chapter 2
at Section 2.6 (Page No 19).
11 Baseline data collection for air,
water and soil for one season
leaving the monsoon season in
an area of 10 km radius with
The baseline data was collected for post monsoon
season during October 2017 to December 2017.
Results of the air, water, noise, soil, and EB are
given in Chapter-3 (Page No 36 to Page No 68).
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 11
centre of Oil Field as its centre
covering the area of all
proposed drilling wells
12 Climatology and Meteorology
including wind speed, wind
direction, temperature rainfall
relative humidity etc.
Climatology and Meteorology including wind
speed, wind direction, temperature rainfall
relative humidity data is given in Chapter 3 (Page
No 33 to Page No 35).
13 Details of Ambient Air Quality
monitoring at 8 locations for
PM2.5, PM10, SO2, NOx, CO,
VOCs, Methane and non-
methane HC.
Ambient air quality data is given in Chapter 3
(Page No 40 to Page No 47).
14 Soil sample analysis (physical
and chemical properties) at the
areas located at 5 locations
Soil sample analysis (physical and chemical
properties) at the areas located at 5 locations data
is given in Chapter 3 (Page No 37 – Page No 38).
15 Ground and surface water
quality near the proposed wells
site.
Ground and surface water quality near the
proposed wells site data is given in Chapter 3
(Page No 49 to Page No 57).
16 Measurement of Noise levels
within 1 km radius of the
proposed wells.
Measurement of Noise levels within 1 km radius
of the proposed wells data is given in Chapter 3
(Page No 48 to Page No 49).
17 Vegetation and land use;
flora/fauna in the block area
with details of endangered
species, if any.
Vegetation and land use; flora/fauna in the block
area with details of endangered species data
given in Chapter 3 (Page No 58 to Page No 68).
18 Incremental GLC as a result of
DG set operation, flaring etc.
Incremental GLC because of DG set operation,
flaring are given in Section 4.2.3 in Chapter-4
(Page No 89 to Page No 97) .
19 Potential environmental
impact envisaged during
various stages of project
activities such as site
Potential environmental impact data is given in
Chapter 4 at Page No 85 to Page No 87.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 12
activation, development,
operation/ maintenance and
decommissioning
20 Actual source of water and
'Permission' for the drawl of
water from the Competent
Authority.
Detailed water balance,
wastewater generation, and
discharge.
Water will be sourced by the Rig contractor by
the water tankers.
Total water requirement is 25 m3/day. The water
balance chart is given at Figure 9.1 (Page No
168).
21 Noise abatement measures and
measures to minimize
disturbance due to light and
visual intrusions
Details are given in Table 9.1 and Table 9.2 in
Chapter 9 (Page No 137 to Page No 139).
22 Details on solid waste
management for drill cuttings,
drilling mud and oil sludge,
produced sand, radio
activematerials, other
hazardous materials, etc.
including its disposal options
during all project phases.
Details are given in Section 9.7.5 and 9.7.6 in
Chapter 9 (Page No 150 and Page No 169).
23 Details on wastewater
generation, treatment and
utilization /discharge for
produced water/ formation
water, cooling waters, other
wastewaters, etc.
duringallprojectphases
Details are given in Section 9.7.1 (Page No 168)
and in Table 9.1 (Page No 137) and Table 9.2
(Page No 139) in Chapter 9.
24 Disposal of spent oil and lube. Used Oil & filters and spare parts, can largely be
recycled. All such waste will be collected and
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 13
transported out of the project area and sold to
authorized recyclers. Details are given in Table
9.1 (Page No 137) and Table 9.2 (Page No 139).
25 Storage of chemicals and
diesel at site. Hazardous
material usage, storage and
accounting
Storage of chemicals at site as per MSDS
provided by the supplier. MSDS for handling of
crude oil is attached as Annexure K. Hazardous
material usage, storage, and accounting are all
done as per the SOP of Sun Petro, which is
abiding by standard procedure given in OISD.
Details of waste management are given in
Section 9.3 of Chapter 9 at Page No 150.
26 Commitment for the use of
water based mud (WBM) only.
The drilling will be done by using water-based
mud (WBM) only. An undertaking is attached as
Annexure L.
27 Oil spill emergency plans for
recovery/ reclamation
Oil spill emergency plan for recovery/
reclamation is prepared as per OISD Norms and
incorporated at Section 7.2 of Chapter 7 at Page
No. 128.
28 H2S emissions control No H2S emissions associated with the project.
29 Produced oil/gas handling,
processing and
storage/transportation
The proposed project is mainly for oil
production. The produced oil will be stored in a
local storage tank from there it will be
transported to the buyer/local market through
tankers. Details are given at Page No 25 of
Section 2.14 in Chapter 2.
30 Details of control of air, water,
and noise pollution during
production phase.
Regular monitoring will be done after obtaining
Environmental Clearance. Details of control of
air, water, and noise pollution during production
phase are given in Table 9.2 (Page No.139) and
in Table 9.3 (Page No 150).
31 Measures to protect ground Details are given in Table 9.2 (Page No.139) in
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 14
water and shallow aquifers
from contamination.
Chapter 9.
32 Whether any burn pits being
utilised for well test
operations.
Not Required
33 Risk assessment and disaster
management plan for
independent reviews of well-
designed construction etc. for
prevention of blow out.
Blowout preventer installation
Risk assessment and disaster management plan is
given in Chapter 7 (Page No.116).
Blowout preventer installation will be as per Oil
Industry Safety Directorate (OIDS).
34 Environmental management
plan
Environmental management plan is given in
Chapter 9 (Page No 134).
35 Total capital and recurring cost
for environmental control
measures
Total Budget for the Environmental Monitoring
Program is Rs 43, 30,000.00 for next five years
given in Chapter 6 (Page No 115).
36 Emergency preparedness plan. Emergency preparedness plan is given in
Annexure Q.
37 Decommissioning and
restoration plans
Details are given in section 2.10 in Chapter 2
(Page No 22).
38 Documentary proof of
membership of common
disposal facilities, if any.
SunPetro has taken the membership of Treatment
Storage and Disposal Facility (TSDF) for the
disposal of Hazardous waste at the time of
drilling (Documents in enclosed at Annexure T).
39 Details of environmental and
safety related documentation
within the company including
documentation and proposed
occupational health and safety
Surveillance Safety
Programme for all personnel at
site. This shall also include
SunPetro has HSE Apex manual, which includes
1. HSE Policy of SunPetro (Annexure M)
2. Environment Aspect-Impact associated with
the projects (Annexure N)
3. Safety Management Plan (Annexure O)
4. Risk Register (Annexure P)
5. Emergency Response Plan (Annexure Q)
6. Contractor‟s Safety Management (Annexure
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 15
monitoring programme for the
environmental
R)
7. Work for Permit (Annexure S)
40 A copy of Corporate
Environment Policy of the
company as per the Ministry's
O.M. No. J-11013/41/2006-
IA.II(I) dated 26th April, 2011
available on the Ministry's
website.
Copy of Corporate Environmental Policy is
attached as Annexure-J.
41 Any litigation pending against
the project and or any
direction/order passed by any
court of law against the
project. If so details thereof.
No litigation is pending against the project.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 16
CHAPTER-2 : Project Description
2.1 Project Proponent
M/s Sun Petrochemicals Private Limited (SunPetro) Company is engaged in the business of
Exploration and Production of Crude Oil and Natural Gas. The company holds mining lease
for Baola Gas field in Gujarat for exploration and production under Production Sharing
Contracts (PSC) signed with the Government of India. PSC for Baola field was transferred to
SunPetro on 10th
June, 2016 by Ministry of Petroleum and Natural Gas (MoPNG),
Government of India.
Mining Lease for Baola Field was transferred and re-granted to SunPetro from Interlink
Petroleum Limited (IPL) on 13th
Feb, 2017 by State Government. The Baola field is located
in the petroliferous Cambay basin which has excellent infrastructure and is in close
proximity to the local market for oil and gas. Upon the grant of transfer of PSC from
IPL, SunPetro used chemical treatment technique to produce heavy oil from Baola field in
Dec. 2016.
Sun Petro intends to drill new wells in the field near the existing three wells. The estimated
cost of the proposed project is INR 32 million per well. Baola # 8 well in the field is currently
producing the crude oil and is in testing phase.
2.2 Brief description of the project
The Project involves the monetization of Baola Field through Crude Oil and Gas production.
The site has three existing wells at present. Two are old wells drilled by ONGC and other one
was by Interlinked, whichare operational.The various activities of the project are:
Drilling of new wells in future
Construction of Group Well Head Installation
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 17
Figure 2.1: Location map of the project
2.3 Salient Features
Salient features of the project are given below in the Table 2.1.
Table 2.1 : Salient feature of the project
Name of the Project Exploration and Development of Drilling Wells
in the Existing PMLarea (PML 4 sq.km) of
Baola Field at Village Salajada, Tehsil Bavla,
District Ahmedabad, Gujarat
Location Baola Oil/Gas field in District: Ahmedabad, State:
Gujarat
Size of the Project Baola field covering an area of 4 sq. km.
Number of Existing Wells 03
Ground Elevation 25 metres above MSL
Depth of each Well Average depth 1500-2000 m below MSL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 18
Total Estimated Drilling
Period for each well
90 days
Total Estimated Testing
Period for each well
21 days
Type of hydrocarbon
expected
Oil (200 bbls per day),
Gas (secondary)
Proposed Drilling Fluid for
each well
Water-based mud system (Environmental
friendly system)
Anticipated Volume of
Cuttings for each well
250-500 cu. metres (approximately)
Estimated Cost of the
Project
INR 32 million per well
2.4 Project Benefits
The project is fulfillment of the Production Sharing Contract between the Company (Sun
Petro) and Directorate General of Hydrocarbon, Govt. of India. It is one of the prospective
area for natural gases by Ministry of Petroleum and Natural Gas, Govt. of India. The viability
of the drilling wells will add onto the natural resources in national level with overall growth
in Indian economy.
2.5 Land Details of the Project
Baola Field has a total Mining Lease Area of 4 Sq. Km and the land for the existingwells is
taken on lease. The additional land associated with drilling and developmentoperations of
proposed wells is being acquired on lease / rental basis from the farmerson prevailing prices.
The land is flat with slope ranging from 0 to 1 % medium black and sandy loam soil. The
most predominant problem of soil in this area is loss of upper fertile soil layer, which is
washed away by intensity of rainfall. The land use within the BaolaField can be broadly
classified into Land under agriculture use, Rainfed area, Gauchar Land, Waste Land
(Cultivable & Non-Cultivable).
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 19
2.6 Drilling Plan for Baola Field
2.6.1 Drilling and Completion
In Baola field the Drilling TD is about 1000-1100 mtrs. The well construction will be done
with two Casing policies and for this drilling rig of 150 ton or 750 hp will be deployed.
Drilling rig package include Rig, capable to drill up to a depth of 2000 mtrs, carrier mounted
from drilling contractor. In addition, other services such as Mud services, logging, cementing,
site construction etc will be used.
2.6.2 Well Drilling Strategy
It is proposed to drill development wells for the two fields operated by SunPetro in same
campaign so as to save on Mob-demob charges. This will also help in optimising expenditure
on materials consumed. The surface hole will be spud with open cellar to drill up to 50 mtrs.
The main Drilling challenge is to avoid loss and mud channeling on surface. After drilling of
top 50 mtr, further drilling will be with control rate ROP. Surface hole will be drilled with
bentonite mud and the lower 8 ½” section will be drilled with KCL POLYMER mud. While
drilling shale formation, shale inhabitations chemicals will be used and to avoid differential
stuck of pipe, proper lubrication will be added in Mud system. Further mud improvement
through monitoring will be carried out so that it will not damage the reservoir.
Well Design and Well Completion (Production, injection, etc.)
The wells will be drilled as vertical wells designed for two casing policy, for the wells drilled
for true vertical depth of 1100 mtr. The well design consist of two casing
1. The surface casing - 9 5/8” BTC L-80, 43.5 ppf setting depth approx. 400-500 mtr
and
2. The Production casing - 5 ½” L-80,17ppf, Setting depth 1100 m.
The planned Casing metallurgy is as follows:
A. 9 5/8” Surface casing : 43.5 ppf, L-80 grade.
1. Wall thickness : 11 mm
2. ID : 222.4 mm
3. Collapse : 26.3 Mpa.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 20
4. Internal yield strength pressure : 43.5 Mpa
5. Pipe body yield strength : 447 (1000 daN)
6. Torque : Torque up to Diamond mark on Csg.
B. 5 ½” Production Casing 17 ppf, L-80 Grade
1. Wall thickness : 7.7 mm
2. ID : 124.3 mm
3. Collapse : 43.3 Mpa.
4. Internal yield strength pressure : 53.4 Mpa
5. Pipe body yield strength : 177 (1000 daN)
6. Torque : Torque upto Diamond mark on Csg
The completion string is planned of 2 7/8” EUE tubing. The Well heads consist the 11”x 5M,
FLG top, 9 5/8” bottom with 5 ½” slip on weld with 2” LP. Thread on side outlets for Surface
casing. Surface casing setting depth is planned at approx. 400-500 mts. The planned Tubing
head spool consists of 11”x5M- 7 1/16”x5M with 2 1/16” side outlet v/v.
Cementing of 9 5/8” casing is planned as single stage cementing, with shoe track of about 20
mtr. Cementing of 5 ½” casing is also planned as single stage cementing, with shoe track of
about 20 mtr. Cement weight will be between 1.35-1.65 Sg. Disposal of drill cutting will
done as per standard Oil industry HSE policy.
The wells in Baola field are planned as vertical wells. The vertical stand-off for casing setting
is as per technical specifications. A typical well schematic is shown in figure.
Figure 2.2: Typical Well schematic
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 21
2.7 Well Evaluation
i) Well Logging
Between the drilling operations for different zones, logging operations are undertaken
to provide information on the potential type and quantities of hydrocarbons present in
the target formations.
Technicians employed by a specialist logging Service Company do well logging.
There are many different well logging techniques including electric, sonic and
radioactive logging. Logging instruments (sensors) are attached to the bottom of a
wire line and lowered to the bottom of the well. They are then slowly brought back,
the devices reading different data as they pass each formation and recording it on
graphs, which can be interpreted by the geologist, geophysicist and drilling engineer.
No emissions are associated with wire line logging operations. The radioactive source
required for well logging operations will be kept in specially designed container under
proper storing license.
ii) Well Testing
Normally, in the event that hydrocarbons are encountered in sufficient quantities, as
determined by electric wire line logs, a temporary drill stem test string may be run and
the well fluids flowed to surface and processed using a surface well testing package.
2.8 Completion of Drilling
On completion of activities, the well will be either plugged and suspended (if the well
evaluations indicate commercial quantities of hydrocarbons) or will be killed and
permanently abandoned. In the event of a decision to suspend the well, it will be filled
with a brine solution containing very small quantities of inhibitors to protect the well.
The well will be sealed with cement plugs and some of the wellhead equipment (Blind
Flange) will be left on the surface (Cellar).
If the well is abandoned, it will be sealed with a series of cement plugs, all the
wellhead equipment will be removed leaving the surface clear of any debris and the
site will be restored.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 22
2.9 Rig Demobilization
Demobilization will involve the dismantling of the rig and residential camp, and
transporting it out of the project area. It is expected that demobilization will take
approximately 180 days and will require around 50 truckloads.
2.10 Restoration and Rehabilitation
If no indications of a commercial quantity of oil are encountered either before or after
testing, the well will be declared dry, accordingly plugged and abandoned, and the site
restored in line with local regulations and good industry practice. As a minimum, the
following steps will be undertaken to restore and rehabilitate the area:
The wellhead and all casing string will be cut off to a minimum depth of 3 m (10
ft) below ground level.
All concrete structures will be broken up, and the debris disposed off as per the
regulatory requirements.
All other waste products, solid and liquid, will be disposed of in accordance with
the requirements of the EIA and will be treated to render them harmless.
All fencing and access gates will be removed.
All pits whose contents would show regulatory compliance for on-site disposal, at
the time of site closure, will be backfilled and closed out as per the legal
requirements. Tree plantation will be done on the closed pits to restore the original
top soil conditions.
That portion of the access track likely to be of no use for other exploratory wells
in the reserved forest will be restored by removing cross drainage structures.
2.11 Staffing
The total number of personnel involved in the site construction and Drilling activities
is expected to be between aprox.50 and aprox. 80 respectively. At any one time there
will be 25-35 staff and security personnel on the well site thus a small accommodation
area will be set up to provide boarding & lodging. Rest of the staff will be housed in
contractor‟s camp and will commute on 12 hrs shift basis to the well site.
2.12 Supplies during Well Drilling
All supplies, both for the drilling rig and machinery and for the camp at the well site
as well as drilling site will be transported probably from Ahmedabad.This will include
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 23
all fuels and oils, chemicals for drilling mud, spare parts for the rig, vehicles,, and
food and other supplies for the residential camp. Fuels, oils, and chemicals will be
unloaded in designated areas with impermeable floors (either concrete or covered
with an impermeable material) and lined by dykes or walls to prevent soil and water
contamination from spills. A catering company will be contracted to provide the
messing facility at the residential camp.
Fuel
It is estimated that approximately 170 liters of fuel (high-speed diesel) will be
consumed per hour during the drilling operation for all uses. The fuel will be provided
by the drilling contractor and transported to site in tankers.
Water
During the drilling process, a maximum of 25 m3/day/well (25,000 liters) of water
will be required to run the drill rig continuously, 24 hours a day. The total water
requirement for the drilling phase is estimated to be 2250 m3 for each well. This does
not include the volume of water for dilution of wastewater, if required, for discharge
into natural drains.
The water will be sourced through authorized vendors to meet the water requirement
during drilling.
Electricity
Diesel generators will be used to generate power to operate the drill rig and for the
residential camp. It is estimated that four diesel-engine generators, each with a
capacity of 360 KVA, will be sufficient for rig operations.
Chemical Usage
Various chemicals will be used during the drilling phase. At the planning stage, an
estimate of the potential usage for every chemical will be made. Some of the
major chemicals, which are planned to be used for the drilling campaign, are as
follows:
Barite
Defoamer
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 24
Chrome free Lignosulphate
Shale Inhibitor
Oxygen Scavenger
Sodium Bicarbonate
Bentonite
Caustic Soda-only in drums
Concentrated Corrosion Inhibitor.
PAC (Polyanionic Cellulose)
Xanthum Gum
Bactericide.
Cloud Point Glycol
Mica
Nut plug
Kwik-Seal.
Wyoming Bentonite.
During the operation, chemical usage will be monitored and efforts will be made to reduce
chemical usage as much as technically feasible.
2.13 Waste Streams
The following types of wastes are likely to be generated during exploratory drilling:
Drill Cuttings: comprising of drilled formation cuttings, mainly comprise of shale,
sands and clay;
Waste drilling fluid (mud): Generated from treatment of return drilling fluid from
well for solids removal;
Drilling Wastewater: The drilling wastewater generated as a result of washings of
drilling cuttings, silt and sand comprises of chemical ingredients of drilling fluid
thereby rendering effluent to be polluted and needs prior treatment before
discharge to meet the given criteria for its discharge;
Chemical Sludge: Wastewater treatment would result in generation of chemical
sludge.
Hydrocarbon Wastes: Used oils from oil changes, waste, or leakage from
equipment or diesel storage tanks. Used oil (from engine oil changes) is
designated as hazardous;
Non hazardous solid waste: Non hazardous wastes like paper, wood, plastics,
containers, etc.,
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 25
Off specified hazardous wastes: Off specified hazardous wastes are Containers
(including poly bags) holding hazardous ingredients like fluid, or testing
chemicals, or previously holding volumes of hazardous chemicals or used
batteries, etc.; and
Medical Wastes: Medical wastes like bandages; syringes; etc are also classified as
hazardous.
Biodegradable waste: The drilling/camp site would generate food waste or fallen
leaves constituting biodegradable wastes.
Air Emissions: The air emissions due to the proposed exploratory drilling will be
from combustion of diesel in the diesel generators for meeting power requirement
of the drilling rig.
2.14 Produced Oil and Gas Handling, Processing and Storage
Baola field operations will be managed with well site facilities consisting of well flow line,
crude oil handling, storage & evacuation facility. Very low pressure associated gas produced
with heavy oil shall be used for internal use or flared as quantity is not economical to sell.
However development scheme for utilization of gas will also be put if considerable gas is
produced from other wells.
Flow lines from nearby wells / same well pad will come to Baola#8 handling / processing
facilities wherein they will join with the manifold. Manifold will have facility of test header
and production header with proper heating and insulations.
Produced water handling, storage and transfer will also be done in stages at Baola#8 site.
Produced water handling will involve storage, oil removal and disposal through evaporation
pond as per GPCB norms. Sludge produced in evaporation pond will be disposed through
GPCB approved agency.
The delivery point (DP) depends on mode of evacuation of crude oil. Following are the two
options for evacuation.
Option1:
It may be proposed to have delivery point at ONGC installation (Nawagam-40 Km from site)
in Ahmedabad Asset, if the crude quality and quantity is acceptable by ONGC / IOC refinery
and if viable to produce and handle. This was taken up for implementation but signing of
Service Agreement (SA) with ONGC requires crude oil storage & transfer facility near
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 26
ONGC installation and crude oil quality with water content less than 0.5%. The sensitivity
check of financial viability was checked and found that this is not viable mainly due to nature
of crude oil from Baola field, cost involved in delivery (cost of bringing water content less
than 0.5%, ONGC handling, heating, processing, analysing, handling& transfer cost) and
marginal nature of very difficult field. Also availability of land for making storage, heating&
transfer facility near ONGC installation is an issue. Also the crude oil quality is so poor, it
will require heating of crude oil at each point of storage and delivery which makes it more
difficult for ensuring the viability.
In addition to above to prepare the crude oil saleable to ONGC, SunPetro to process the crude
oil to make in with water content less than 5 % .
CRUDE OIL STORAGE & TRANSFER FACILITY AT
ONGC INSTALLATION - NAWAGAM [ SunPetro ]
OIL
TANK
45 KLSTORAGE TANK
CRUDE OIL TRANSFER PUMP
CRUDE OILDELIVERY POINT
CRUDE OIL STORAGE TANK[ ONGC – NAWAGAON ]
CRUDE OIL STORAGE TANK
[ SunPetro ]
CRUDE OILSTORAGE TANK
ROAD TANKER FROM BAOLA
Figure 2.3: Typical Option 1 at ONGC installation
Option 2:
Delivery point is proposed at the Group Well Head Installation (GWHI) for transferring the
crude oil to third party as being disposed-off presently.SunPetro proposes to sell this very
difficult crude oil after minor treatment (to bring down the associated water content below
30%) to the local small private parties on competitive prices in accordance at arm‟s length
sale. Since Option 1 found not feasible for such a difficult crude oil and also keeping in view
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 27
the Flow Assurance issues, it is proposed to have delivery point at the proposed Group Well
Head Installation (Option 2) for transferring the crude oil for evacuation.
OIL STORAGETANK
OIL STORAGETANK
OIL STORAGETANK
OIL STORAGETANK
Ø
Ø
TANKER LOADINGPOINT
PRODUCED WATER FROM TANK BOTTOM
FOR TREATMENT
GEAR PUMP
OIL RECIRCULATION LINE
RECOVERED OIL FROM PIT
SunPetroGWHI
Tanker Loading fromSunPetro GWHI
Oil Tanker
OIL TANKER LOADINGAT
GROUP WELL- HEAD INSTALLATION, BAOLA
Figure 2.4: Typical Option 2 at GWHI for delivery point & custody transfer
2.15 Pipelines network & details
Considering very poor chemical content and poor rheological properties of crude oil, pipeline
network has to be short with heating arrangement. It has been observed that oil cannot be
handled through conventional separators, therefore, gas separation and measurement is
planned on applying the innovative methods. Therefore, everything is to be managed within
shortest possible network area and hence facilities are envisaged in limited well site area
only.
Flow line from nearby well/same well pad will come to Baola#8 handling/processing
facilities wherein they will join with the manifold. Manifold will have facility of test header
and production header with proper heating and insulations.
The pipeline network size & length will be finalized based on surveys, availability of land
and flow assurance issues for transport of heavy oil (Figure – 2.5).
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 28
B # 10
B # 1
B # 8
B # 9
G G S
B # 5
433.30 M
B # 1
WELL FLUID LINE[ CASING SIDE ]
B # 8
B # 9
WELL FLUID LINE[ TUBING SIDE ]
WELL FLUID LINE[ TUBING SIDE ]
WELL FLUID LINE[ CASING SIDE ]
3 " x Sch 80
2 " x Sch 80
PRODUCED WATER LINE
FLARE LINE
PRODUCED WATER LINE
FLARE LINE
WELL FLUID LINE
Existing Line:
Planned Line: …………..
PIPING NET-WORKOf
BAOLA FIELD
Figure 2.5: Tentative Piping Network for Baola Field Gas Flaring
Production flow lines from wells shall be connected to manifold before entering into
horizontal storage tank via a special small separator. Separator shall be operated at 1.5 barg
pressure controlled by a special back pressure control valve (BPCV). During normal
operating condition gas at 1.5 barg pressures will be used for internal consumption purpose as
quantity is too low for sale. In case of exigency once pressure shoots up to 2 barg, the gas
from special separator will flow through the common flaring system. The 35 meter elevated
Flare is located at a safe distance having KOD, Flame arrestor & bund around(Figure – 2.6).
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 29
GAS FLARING SYSTEMGROUP WELL-HEAD INSTALLATION
Productionheader
Ø
*
GAS FOR INTERNAL
CONSUMPTION
SEPARATOR
P C V
P C VSPLIT CONTROL
FLARE STACK K O D
Ø
B # 1
B # 8
B # 9
P S V
FLOW METER
FLAME ARRESTOR
35 M
Figure 2.6: Tentative Gas Flaring System
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 30
CHAPTER-3 : Description of Environment
3.1 Overview
A clear understanding of both the physical and biological characteristics of the local
environment is important in the planning for the proposed drilling wells in Baola field,
Ahmedanad District of Gujarat. Identification of both typical and extreme physical conditions
that may occur over the drilling period for the proposed exploration allows prediction of the
fate of any discharges from drilling operations and enables selection of the appropriate rig,
equipment, and training, thereby maximizing levels of safety for the duration of the operation
and minimizing the damage to local environment.
Knowledge of the characteristics of the local biological environment allows an understanding
of the potential for the operations to interact with the flora and fauna so that appropriate
controls can be adopted to mitigate negative impacts.
3.2 Site Description and Its Environment
The project site is located within Baola oil Field under Bavla Taluka of Ahmedabad District
in Gujarat. The Baola oil Field is surrounded by rural areas in the 10 km radial zone of the
present study. The study area of 10 km radial zone is shown in Figure 3.1 with main features
and villages of the study area. The study area falls in Ahmedabad district of Gujarat. State
Highway SH 74 passes through the Project Field.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 31
Figure 3.1:Study Area Map of 10 km Radial Zone
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 32
54 M
48.3 M
P W PIT
THERMIC FLUIDHEATER &
EXPANSION TANK
TRANSFORMER
20 M
BAOLA
FIRE WATER POND
1
34 M
east
west
North
30 M
TANKERLOADING
POINT
PORTA CABIN
TANKAGE
Ø
Ø
WASH ROOM
SEPTIC TANK
DG
VFD
FWPSKID
TUBEWELL
POTWATERTANK
WATER POND[CANAL WATER]
FWP – 1Fire Water Pond – 2Muster Point - 3Porta Cabin & Store – 4Wash Room – 5Pot Water Tank – 6Tube Well – 7Septic Tank – 8Transformer – 9DG Set – 10
VFD - 11Wel Head – 12Test Separator – 13Oil Storage Tank – 14Prodn Manifold – 15Evacuation Header – 16Oil Loading Point – 17 PW Pit – 18Thermic Fluid Heater – 19GARDEN - 20Security Cabin - 21 B #
8
26 [ 25 ] M
TESTSEPARATOR
DHOLKA
South
PLOT PLAN FOR GROUP WELL HEAD INSTALLATIONLOCATION : BAOLA FIELD
BAOLA
DHOLKA
MUSTERPOINT
GARDEN
PANCHAYATLAND
ADDITIONALLAND
EXISTING LAND
SECURITYCABIN
Ø
STORE
FWBORE
B # 1
B # 9
PRODUCTIONMANIFOLD
OIL OUTLETMANIFOLD
Ø
HOT OILMANIFOLD
Figure 3.2: Site Facilities
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 33
3.3 State of the Environment (Regional)
3.3.1 Topography & Geology
The geology is underlain by recently placed alluvial sands and few sporadic outcrops of
Deccan Trap and Limestone towards southern part of the region, The rock formations ranging
in age from Archaean to recent include gneises, schishts, phyllites, intrusive medium to
coarse grain sandstone, basalts and recents alluvium. The Geological Map of Gujarat state is
given as Figure 3.3. (Source: Internet)
Figure 3.3: Geological Map of Gujarat
The topography of the area is almost flat covered by brown sandy and clayey soil and has
gentle southerly and south westerly slope (towards Gulf of Khambat). The elevation of the
land surface varies from 53 ft to 104 ft above MSL. There are no hills, hillocks or undulating
land in the region.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 34
3.3.2 Climate
Study area has a tropical type of climate with extreme summers and winters. The Arabian Sea
and Gulf of Khambhat reduce the temperature and render the climate more pleasant and
healthy. The average annual temperature varies from 36ºC in summer to 8ºC in winter. The
relative humidity varies from maximum of 90% to a minimum of 10%. The area receives an
average annual rainfall of 732 mm. The predominant wind direction for the study period
varies from North, West, North-West, North-North-West, North-East, North- North- East to
South-East
The study area is characterized by hot summers and the four different seasons are as follows :
Winter Season : December to February
Summer Season : March to May
Monsoon Season : June to September
Post-monsoon Season : September to November.
3.3.3 Seismic Considerations
According to the Seismic-zoning Map of India [IS 1893 (Part I):2002], the study region falls
in Zone III – Moderate Seismic Intensity. The Seismic Zoning Map is shown inFigure 3.4
Figure 3.4: Seismic Zoning Map of India
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 35
3.4 State of the Environment (Local)
The environmental status of the local vicinity at 10 km radial zone around the project site has
been studied during the post monsoon season October, November, and December 2017 and
the details are given in the following sub-sections:
3.4.1 Micro-Meteorology
Meteorological study exerts a critical influence on air quality, as it is an important factor in
governing the ambient air quality. The meteorological data recorded during the study period
is used for interpretation of the baseline information as well as input for air quality simulation
models. Meteorological data was collected in post monsoon season for the period from
October 2017 to December 2017.
The wind rose diagram for the study area is shown in Fig 3.5. The analysis of the average
wind pattern shows predominant winds from E, NNE, ENE. The calm wind (wind speed <
0.5 m/s) conditions prevailed for 26.31 % of the total time.Average wind speed is 1.52 m/s.
Figure 3.5: Windrose Diagram
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 36
3.4.2 Topography
The topography of the project site and the study area of 10 km radial zone are almost plain.
The elevation of the study area varies from 15 m to 32 m in general. However, in the northern
side of the study area the elevations are in the range of 22 to 32 m above MSL with a gentle
slope towards south & south-west of the project site. There are no hills, hillocks or undulating
land in the study area.
3.4.3 Land Use
The landuse within the Baola Field have been studied and it can be broadly classified into
five major categories viz., Settlement, Waste Land. Vegetation. Water bodies and open and
agricultural. The land use distribution in the Baola Gas Field Area is as follows:
Table 3.1: Landuse/Landcover
S.No Classes Area (sq.km) Area in %
1 Open & Agriculture 352.49 90.78
2 Settlement 18.80 4.84
3 Vegetation 7.00 1.80
4 Water Bodies 8.92 2.30
5 Waste Land 1.06 0.27
Total 388.27 100.00
Figure 3.6: Land Use Map of Baola Field
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 37
3.4.4 Soil Environment
Soil samples were collected from five locations of the 10 km study are around the Baola
field. Soil location map and the results are given below:
Figure 3.7: Soil Sampling Locations
Table 3.2: Soil Analysis
Location 1 Location 2 Location 3 Location 4 Location 5
Location Baola Saljada Rupal Project
Site Zekadaa
Sr. No. Parameters Units Value Value Value Value Value
1 pH - 7.76 7.68 6.88 8.12 7.26
2 Bulk Density gm/cm3 1.38 1.28 1.36 1.43 1.26
3 Conductivity Micro
mhos/cm 226 180 352 598 265
4 Moisture % 7.2 7.8 6.2 7.5 8.2
5 Texture - Sandy Loam
Sandy Loam
Sandy Loam
Sandy Loam
Sandy Loam
6 Sand % 62 70 58 70 66
7 Clay % 12 12 14 10 12
8 Silt % 26 18 28 20 22
9 Sodium mg/100gm 2.2 3.6 2.1 3.3 2.6
10 Potassium mg/100gm 1.6 2.1 0.9 2.3 1.6
11 CEC meq/100gm 8.52 8.24 9.18 7.64 8.28
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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12 Nitrogen mg/100gm 18.2 22.8 18.2 18.8 20.8
13 Phosphorous mg/100gm 0.76 0.96 0.84 0.89 0.96
14 Organic Matter
%
1.26 1.12 1.09 1.32 1.14
15 Ca meq/100gm 3.24 2.82 3.45 2.28 3.26
16 Mg meq/100gm 2.32 1.82 2.06 1.08 1.18
17 SAR - 0.57 1.02 0.55 1.08 0.62
3.4.5 Air Environment
Sampling at each of the eight stations was done and on its basis the baseline data of ambient
air environment was generated for the parameters mentioned below:
1. Particulate Matter 10 micron
2. Particulate Matter 2.5 micron
3. Sulphur dioxide (SO2)
4. Nitrogen oxide (NO2)
5. Carbon Mono-Oxide
6. Methane Hydro Carbons
7. Non-Methane Hydrocarbons
8. Volatile Organic Compounds
In regard to the techniques for collection of sample of particulate matter, the “Respirable
Dust Sampler Envirotech Model APM 460 BL” was used for air monitoring. The dust
particulate matter was collected on filter paper (size GF/A20.3x25.4 cm) and dust cup and the
gaseous pollutants were collected simultaneously by a known volume of air through a
number of bubblers of different flow rate through appropriate solution for absorbing different
gases. The collected samples were analyzed according to standard method for different
pollutants.
Theory of Respirable Dust Sampler (RDS)
The principle involved in Particulate Matter (PM) sampling method is that the particles
filtered from known volume of an air sample by a suction apparatus are deposited on a filter
paper. Generally the gaseous pollutants in air are made to react with liquid absorbing media
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Page 39
at atmospheric temperature and pressure when air is bubbled through the absorbing solution
in the impinger. RD sampler measures only the concentration of PM and Gases in the
ambient air.
Air is drawn through a size-selective inlet and through a 20.3 X 25.4 cm (8 X 10 in) filter at a
flow rate, which is typically 1132 L/min. Particles with aerodynamic diameter less than the
cut-point of the inlet are collected, by the filter. The mass of these particles is determined by
the difference in filter weights prior to and after sampling. The concentration of PM10 in the
designated size range is calculated by dividing the weight gain of the filter by the volume of
air sampled.
PM2.5 refers to fine particles that are 2.5 micrometers (μm) or smaller in diameter.Ambient air
is defined as any unconfined part of the Earth's atmosphere, that the surrounding outdoor air
in which humans and other organisms live and breathe.
An electrically powered air sampler draws ambient air at a constant volumetric flow rate
(16.7 lpm) maintained by a mass flow / volumetric flow controller coupled to a
microprocessor into specially designed inertial particle-size separator (i.e. cyclones or
impactors) where the suspended particulate matter in the PM2.5 size ranges is separated for
collection on a 47 mm polytetrafluoroethylene (PTFE) filter over a specified sampling period.
Each filter is weighed before and after sample collection to determine the net gaindue to the
particulate matter. The mass concentration in the ambient air is computed as the total mass of
collected particles in the PM2.5 size ranges divided by the actual volume of air sampled, and
is expressed in μg/m.
Calculation
PM10 (µg/m3) = (weight of filter paper after sampling – initial weight of filter paper)/volume
of air.
PM2.5(µg/m3) = (weight of filter paper after sampling – initial weight of filter paper)/volume
of air.
For gaseous pollutants
SO2 (µg/m3) = (A – A0) x 1000 x B x D/ V
NOx (µg/m3) = (A – A0) x 1000 x B x D/ 0.82V
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Where, A = Sample Absorbance,
A0 = Reagent blank Absorbance, and
B = Calibration factor (g/absorbance)
D = Volume of absorbance solution in impinger during monitoring/volume of absorbing
solution taken for analysis.
V = Volume of Air Sample in liters.
Sources
The major sources of air pollutants in the project area are vehicular traffic, dust arising from
local and village road, forest fire and domestic fuel burning.
Total eight monitoring locations were selected for basline data collection of Air Quality
Monitoring of the Project in the Study area. The air quality monitoring location map and its
table are given below:
S.No. Code Location
1 A1 Badarkha
2 A2 Baola
3 A3 Rasam
4 A4 Project Site
5 A5 Rupal
6 A6 Zekadaa
7 A7 Kerala
8 A8 Bhayal
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Page 41
Figure 3.8: Air Quality Monitoring Locations
Air Quality Baseline Results
The sampling was done during October 2017 to December 2017 as per the NAAQ Guidelines
2009. Results of the analysis of the samples are given below:
Table 3.3: Ambient Air Quality Data of Badarkha
1 Badarkha
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 84 46 9 18 0.88 BDL BDL BDL
04.10.2017 72 36 10 24 0.78 BDL BDL BDL
08.10.2017 90 54 8 18 0.84 BDL BDL BDL
11.10.2017 76 40 14 22 0.76 BDL BDL BDL
15.10.2017 88 52 9 20 0.84 BDL BDL BDL
18.10.2017 86 42 8 24 0.78 BDL BDL BDL
22.10.2017 78 38 12 22 0.82 BDL BDL BDL
25.10.2017 87 41 6 18 0.72 BDL BDL BDL
Nov-17
01.11.2017 86 47 8 22 0.99 BDL BDL BDL
04.11.2017 77 39 10 18 0.86 BDL BDL BDL
08.11.2017 83 42 12 23 0.73 BDL BDL BDL
11.11.2017 68 32 9 18 0.71 BDL BDL BDL
15.11.2017 72 41 13 23 0.67 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 42
18.11.2017 81 48 8 19 0.69 BDL BDL BDL
22.11.2017 69 37 11 20 0.82 BDL BDL BDL
25.11.2017 74 35 7 18 0.58 BDL BDL BDL
Dec-17
01.12.2017 82 44 10 21 0.89 BDL BDL BDL
04.12.2017 86 45 9 17 0.78 BDL BDL BDL
08.12.2017 79 42 12 21 0.62 BDL BDL BDL
11.12.2017 85 45 9 22 0.69 BDL BDL BDL
15.12.2017 76 41 11 18 0.81 BDL BDL BDL
18.12.2017 82 43 10 14 0.85 BDL BDL BDL
22.12.2017 74 39 11 18 0.82 BDL BDL BDL
25.12.2017 67 34 9 24 0.59 BDL BDL BDL
Max 90 54 14 24 0.99 BDL BDL BDL
Min 67 32 6 14 0.58 BDL BDL BDL
Avg 79.25 41.79 9.79 20.08 0.77 BDL BDL BDL
98 percentile 89.08 53.08 13.54 24.00 0.94 BDL BDL BDL
Table 3.4: Ambient Air Quality Data of Baola
2 Baola
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 86 43 7 20 0.89 BDL BDL BDL
04.10.2017 70 42 10 23 0.85 BDL BDL BDL
08.10.2017 82 39 7 24 0.79 BDL BDL BDL
11.10.2017 88 52 8 23 0.91 BDL BDL BDL
15.10.2017 73 38 6 25 0.87 BDL BDL BDL
18.10.2017 83 41 7 20 0.65 BDL BDL BDL
22.10.2017 82 44 8 18 0.87 BDL BDL BDL
25.10.2017 74 36 10 20 0.96 BDL BDL BDL
Nov-17
01.11.2017 80 42 9 21 0.83 BDL BDL BDL
04.11.2017 73 43 10 24 0.68 BDL BDL BDL
08.11.2017 85 50 8 26 0.84 BDL BDL BDL
11.11.2017 75 40 13 23 0.61 BDL BDL BDL
15.11.2017 68 38 6 20 0.75 BDL BDL BDL
18.11.2017 62 36 8 17 0.89 BDL BDL BDL
22.11.2017 86 48 7 20 0.94 BDL BDL BDL
25.11.2017 72 36 12 24 0.78 BDL BDL BDL
Dec-17
01.12.2017 90 52 8 18 0.84 BDL BDL BDL
04.12.2017 76 40 14 22 0.76 BDL BDL BDL
08.12.2017 94 56 9 20 0.86 BDL BDL BDL
11.12.2017 86 42 6 24 0.78 BDL BDL BDL
15.12.2017 78 38 10 26 0.82 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
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18.12.2017 68 39 8 22 0.88 BDL BDL BDL
22.12.2017 77 44 6 18 0.94 BDL BDL BDL
25.12.2017 86 50 12 22 0.76 BDL BDL BDL
Max 94 56 14 26 0.96 BDL BDL BDL
Min 62 36 6 17 0.61 BDL BDL BDL
Avg 78.92 42.88 8.71 21.67 0.82 BDL BDL BDL
98 percentile 92.16 54.16 13.54 26.00 0.95 BDL BDL BDL
Table 3.5: Ambient Air Quality Data of Rasam
3 Rasam
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 78 38 6 13 0.67 BDL BDL BDL
04.10.2017 68 34 8 16 0.78 BDL BDL BDL
08.10.2017 56 24 9 22 0.77 BDL BDL BDL
11.10.2017 68 34 10 16 0.86 BDL BDL BDL
15.10.2017 58 30 12 18 0.81 BDL BDL BDL
18.10.2017 72 32 8 18 0.72 BDL BDL BDL
22.10.2017 66 28 10 22 0.64 BDL BDL BDL
25.10.2017 60 32 8 24 0.78 BDL BDL BDL
Nov-17
01.11.2017 67 34 5 18 0.74 BDL BDL BDL
04.11.2017 52 26 12 20 0.82 BDL BDL BDL
08.11.2017 64 30 12 24 0.76 BDL BDL BDL
11.11.2017 58 32 6 18 0.78 BDL BDL BDL
15.11.2017 68 40 6 14 0.74 BDL BDL BDL
18.11.2017 74 38 8 17 0.76 BDL BDL BDL
22.11.2017 68 35 6 25 0.81 BDL BDL BDL
25.11.2017 78 29 11 23 0.66 BDL BDL BDL
Dec-17
01.12.2017 69 34 7 17 0.72 BDL BDL BDL
04.12.2017 72 28 8 21 0.66 BDL BDL BDL
08.12.2017 69 31 6 15 0.78 BDL BDL BDL
11.12.2017 71 38 7 17 0.76 BDL BDL BDL
15.12.2017 68 31 8 18 0.64 BDL BDL BDL
18.12.2017 69 34 6 15 0.75 BDL BDL BDL
22.12.2017 67 32 7 22 0.67 BDL BDL BDL
25.12.2017 70 34 5 18 0.84 BDL BDL BDL
Max 78 40 12 25 0.86 BDL BDL BDL
Min 52 24 5 13 0.64 BDL BDL BDL
Avg 67.08 32.42 7.96 18.79 0.75 BDL BDL BDL
98 percentile 78.00 39.08 12.00 24.54 0.85 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 44
Table 3.6: Ambient Air Quality Data of Project Site
4 Project Site
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 90 41 8 18 0.84 BDL BDL BDL
04.10.2017 76 40 14 22 0.76 BDL BDL BDL
08.10.2017 88 44 9 20 0.84 BDL BDL BDL
11.10.2017 86 42 8 24 0.78 BDL BDL BDL
15.10.2017 78 38 12 22 0.82 BDL BDL BDL
18.10.2017 87 41 6 18 0.72 BDL BDL BDL
22.10.2017 68 32 8 22 0.82 BDL BDL BDL
25.10.2017 84 40 12 26 0.84 BDL BDL BDL
Nov-17
01.11.2017 76 38 9 18 0.76 BDL BDL BDL
04.11.2017 66 34 10 18 0.72 BDL BDL BDL
08.11.2017 79 47 9 17 0.77 BDL BDL BDL
11.11.2017 83 41 13 26 0.75 BDL BDL BDL
15.11.2017 86 43 7 20 0.89 BDL BDL BDL
18.11.2017 70 31 10 23 0.85 BDL BDL BDL
22.11.2017 82 39 7 24 0.79 BDL BDL BDL
25.11.2017 88 35 8 23 0.91 BDL BDL BDL
Dec-17
01.12.2017 64 36 11 21 0.84 BDL BDL BDL
04.12.2017 75 42 9 19 0.66 BDL BDL BDL
08.12.2017 77 36 10 18 0.66 BDL BDL BDL
11.12.2017 83 42 12 23 0.73 BDL BDL BDL
15.12.2017 68 32 9 18 0.71 BDL BDL BDL
18.12.2017 72 41 13 23 0.67 BDL BDL BDL
22.12.2017 78 42 9 21 0.64 BDL BDL BDL
25.12.2017 73 36 13 24 0.78 BDL BDL BDL
Max 90 47 14 26 0.91 BDL BDL BDL
Min 64 31 6 17 0.64 BDL BDL BDL
Avg 78.21 38.88 9.83 21.17 0.77 BDL BDL BDL
98 percentile 89.08 45.62 13.54 26.00 0.90 BDL BDL BDL
Table 3.7: Ambient Air Quality Data of Rupal
5 Rupal
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 78 42 6 19 0.71 BDL BDL BDL
04.10.2017 68 29 7 18 0.81 BDL BDL BDL
08.10.2017 67 30 9 19 0.77 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 45
11.10.2017 73 32 10 21 0.81 BDL BDL BDL
15.10.2017 62 34 11 23 0.72 BDL BDL BDL
18.10.2017 65 30 7 21 0.82 BDL BDL BDL
22.10.2017 68 35 6 25 0.81 BDL BDL BDL
25.10.2017 78 29 11 23 0.66 BDL BDL BDL
Nov-17
01.11.2017 69 34 7 17 0.72 BDL BDL BDL
04.11.2017 72 28 8 21 0.66 BDL BDL BDL
08.11.2017 68 33 10 20 0.79 BDL BDL BDL
11.11.2017 72 32 8 18 0.72 BDL BDL BDL
15.11.2017 66 28 10 22 0.64 BDL BDL BDL
18.11.2017 60 32 8 24 0.78 BDL BDL BDL
22.11.2017 67 34 5 18 0.74 BDL BDL BDL
25.11.2017 52 26 12 20 0.82 BDL BDL BDL
Dec-17
01.12.2017 65 40 9 20 0.82 BDL BDL BDL
04.12.2017 70 36 10 15 0.71 BDL BDL BDL
08.12.2017 72 41 13 23 0.67 BDL BDL BDL
11.12.2017 81 44 8 19 0.69 BDL BDL BDL
15.12.2017 69 37 11 20 0.82 BDL BDL BDL
18.12.2017 74 35 7 18 0.58 BDL BDL BDL
22.12.2017 68 37 12 22 0.72 BDL BDL BDL
25.12.2017 56 34 8 24 0.66 BDL BDL BDL
Max 81 44 13 25 0.82 BDL BDL BDL
Min 52 26 5 15 0.58 BDL BDL BDL
Avg 68.33 33.83 8.88 20.42 0.74 BDL BDL BDL
98 percentile 79.62 43.08 12.54 24.54 0.82 BDL BDL BDL
Table 3.8: Ambient Air Quality Data of Zekadaa
6 Zekadaa
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 84 48 8 16 0.64 BDL BDL BDL
04.10.2017 96 52 12 20 0.72 BDL BDL BDL
08.10.2017 82 48 9 18 0.68 BDL BDL BDL
11.10.2017 95 57 10 23 0.73 BDL BDL BDL
15.10.2017 76 44 8 20 0.68 BDL BDL BDL
18.10.2017 88 52 6 22 0.62 BDL BDL BDL
22.10.2017 80 48 10 26 0.72 BDL BDL BDL
25.10.2017 94 56 8 23 0.80 BDL BDL BDL
Nov-17
01.11.2017 84 48 9 18 0.66 BDL BDL BDL
04.11.2017 90 54 11 24 0.84 BDL BDL BDL
08.11.2017 68 40 7 20 0.72 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 46
11.11.2017 82 48 9 24 0.64 BDL BDL BDL
15.11.2017 94 54 6 23 0.77 BDL BDL BDL
18.11.2017 84 38 9 19 0.62 BDL BDL BDL
22.11.2017 78 36 13 24 0.82 BDL BDL BDL
25.11.2017 94 40 7.5 21 0.79 BDL BDL BDL
Dec-17
01.12.2017 64 38 9 18 0.72 BDL BDL BDL
04.12.2017 70 42 8.5 24 0.68 BDL BDL BDL
08.12.2017 78 39 6 18 0.86 BDL BDL BDL
11.12.2017 82 45 7 22 0.82 BDL BDL BDL
15.12.2017 68 40 9 20 0.72 BDL BDL BDL
18.12.2017 72 43 11 24 0.84 BDL BDL BDL
22.12.2017 90 54 9.5 21 0.76 BDL BDL BDL
25.12.2017 82 49 8 18 0.80 BDL BDL BDL
Max 96 57 13 26 0.86 BDL BDL BDL
Min 64 36 6 16 0.62 BDL BDL BDL
Avg 82.29 46.38 8.77 21.08 0.74 BDL BDL BDL
98 percentile 95.54 56.54 12.54 25.08 0.85 BDL BDL BDL
Table 3.9: Ambient Air Quality Data of Kerala
7 Kerala
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 89 44 8 18 0.52 BDL BDL BDL
04.10.2017 90 52 10 24 0.65 BDL BDL BDL
08.10.2017 82 48 7 20 0.78 BDL BDL BDL
11.10.2017 78 46 10 22 0.76 BDL BDL BDL
15.10.2017 88 52 8 24 0.67 BDL BDL BDL
18.10.2017 92 55 9 22 0.76 BDL BDL BDL
22.10.2017 72 43 12 26 0.72 BDL BDL BDL
25.10.2017 76 38 8 18 0.65 BDL BDL BDL
Nov-17
01.11.2017 90 54 9 20 0.84 BDL BDL BDL
04.11.2017 83 40 7.5 18 0.75 BDL BDL BDL
08.11.2017 92 46 9 22 0.87 BDL BDL BDL
11.11.2017 84 50 8 16 0.94 BDL BDL BDL
15.11.2017 89 53 6.5 17 0.80 BDL BDL BDL
18.11.2017 92 55 13 23 0.89 BDL BDL BDL
22.11.2017 78 46 10 20 0.75 BDL BDL BDL
25.11.2017 84 56 8 18 0.89 BDL BDL BDL
Dec-17
01.12.2017 80 48 12 21 0.68 BDL BDL BDL
04.12.2017 92 54 7.5 24 0.84 BDL BDL BDL
08.12.2017 78 46 9 19 0.66 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 47
11.12.2017 94 52 7 22 0.87 BDL BDL BDL
15.12.2017 83 49 11 20 0.81 BDL BDL BDL
18.12.2017 78 38 8 18 0.88 BDL BDL BDL
22.12.2017 85 50 12 22 0.94 BDL BDL BDL
25.12.2017 90 54 9 16 0.76 BDL BDL BDL
Max 94 56 13 26 0.94 BDL BDL BDL
Min 72 38 7 16 0.52 BDL BDL BDL
Avg 84.96 48.71 9.10 20.42 0.78 BDL BDL BDL
98 percentile 93.08 55.54 12.54 25.08 0.94 BDL BDL BDL
Table 3.10: Ambient Air Quality Data of Bhayala
8 Bhayala
Month Date PM10
(µg/m3)
PM2.5
(µg/m3)
SO2
(µg/m3)
NO2
(µg/m3)
CO
(mg/m3)
HC
(µg/m3)
NMHC
(µg/m3)
VOC
(µg/m3)
Oct-17
01.10.2017 87 52 8 21 0.82 BDL BDL BDL
04.10.2017 80 48 6 18 0.74 BDL BDL BDL
08.10.2017 96 57 9.5 24 0.87 BDL BDL BDL
11.10.2017 90 54 7 16 0.94 BDL BDL BDL
15.10.2017 94 56 6.5 20 0.82 BDL BDL BDL
18.10.2017 83 49 10 18 0.72 BDL BDL BDL
22.10.2017 78 46 6 18 0.76 BDL BDL BDL
25.10.2017 90 52 8.5 23 0.84 BDL BDL BDL
Nov-17
01.11.2017 82 42 7 18 0.61 BDL BDL BDL
04.11.2017 87 50 6.5 23 0.88 BDL BDL BDL
08.11.2017 78 38 6 20 0.74 BDL BDL BDL
11.11.2017 66 34 8 18 0.86 BDL BDL BDL
15.11.2017 80 48 6 21 0.64 BDL BDL BDL
18.11.2017 77 46 7.5 23 0.82 BDL BDL BDL
22.11.2017 89 44 9 19 0.64 BDL BDL BDL
25.11.2017 84 50 8.5 24 0.84 BDL BDL BDL
Dec-17
01.12.2017 68 34 7.5 20 0.76 BDL BDL BDL
04.12.2017 70 42 9 18 0.72 BDL BDL BDL
08.12.2017 92 55 5.5 21 0.82 BDL BDL BDL
11.12.2017 84 50 7 19 0.84 BDL BDL BDL
15.12.2017 90 45 8.5 22 0.76 BDL BDL BDL
18.12.2017 78 38 6 18 0.84 BDL BDL BDL
22.12.2017 80 46 9.5 23 0.72 BDL BDL BDL
25.12.2017 74 44 9 20 0.78 BDL BDL BDL
Max 96 57 10 24 0.94 BDL BDL BDL
Min 66 34 6 16 0.61 BDL BDL BDL
Avg 82.38 46.67 7.58 20.21 0.78 BDL BDL BDL
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 48
98 percentile 95.08 56.54 9.77 24.00 0.91 BDL BDL BDL
3.4.6 Noise Environment
Noise monitoring locations were selected based on approved ToR i.e. within 1 km of the
project site.. Noise monitoring locations are given below:
Figure 3.9: Noise Monitoring Locations
The noise monitoring results are as follows:
Table 3.11: Noise Results
Baola Noise Result
Noise Standards of Noise Level Noise Level
db(A)
Sr.No. Location DOS
Category of Area
Day dB (A)
Night dB (A)
Day (Ld)
Night (Ln)
1
Project Site Near Point A
01.10.2017 Industrial 75 70
62.4 48.6
2 Near Highway Maya Nagar
04.10.2017 Residential 55 45
48.2 40.4
3 Adroda 08.10.2017 Residential 55 45 52.4 39.2
4 Project Site Near Point D
11.10.2017 Industrial 75 70
50.6 42.6
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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5 Rupal 15.10.2017 Residential 55 45 49.5 39.5
6 Near Point C 18.10.2017 Industrial 75 70 44.6 38.2
7 Near Point B 22.10.2017 Industrial 75 70 52.2 40.4
8 Near Lake 25.10.2017 Residential 55 45 46.4 41.6
3.4.7 Water Environment
Water sampling locations were selected based on approved ToR i.e. within 10 km radius of
the project site. Total five surface water sampling locations and ten ground water locations
were identified. The water sampling locations and results are given below:
Figure 3.10: Surface Water Sampling Locations
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Table 3.12: Surface Water Quality Results
Rupal (Lake) Baola (Lake) Project Site (Lake) Near Vill Sindhrej (Canal) Juwal (Lake)
Sl. No.
Parametera Units of Measure
ments
Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec.
1 Colour
Hazen Units <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5
2 Odour -
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
3 Taste -
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
4 Turbidity NTU 2.5 2.2 2.4 2.6 1.8 1.6 2.8 2.1 1.8 2.2 2.5 2.1 1.8 1.6 2.1
5 pH - 7.63 7.71 7.61 7.72 7.64 7.69 7.23 7.42 7.38 7.52 7.34 7.36 7.65 7.63 7.84
6 Temperature °C 27 26 26 26 25 25 26 25 24 27 26 25 27 27 26
7 Conductivity
µmhos/cm 573 589 588 615 628 624 648 666 669 738 759 832 596 613 672
8 Alkalinity as CaCO3 mg/l 208 214 198 222 228 210 234 242 224 268 276 254 216 223 205
9 Total Dissolved Solids mg/l 372 383 382 397 408 406 420 432 435 479 493 539 387 398 436
10 Total Hardness as CaCO3 mg/l 224 232 220 240 246 234 254 264 250 289 298 284 234 240 229
11 Calcium as CaCO3 mg/l 146 151 131 156 160 140 166 170 149 188 194 169 152 157 137
12 Magnesium as CaCO3 mg/l 78 81 89 84 86 94 89 92 101 101 104 115 82 84 93
13 Chloride as Cl mg/l 56 60 66 60 64 70 64 68 76 71 76 85 57 62 68
14 Phosphate as PO4 mg/l 0.92 0.86 0.91 0.98 0.92 0.97 0.91 0.92 0.93 0.96 0.92 0.88 0.96 0.89 0.95
15 Nitrate as NO3 mg/l 11.1 9.5 10.4 11.9 10.2 11.1 12.6 10.8 11.7 14.3 12.3 13.4 11.6 9.9 10.8
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16 Sulphate as SO4 mg/l 30 34 36 32 36 38 34 38 42 38 44 46 32 36 38
17 Fluoride as F mg/l 0.74 0.67 0.72 0.76 0.71 0.77 0.84 0.75 0.81 0.78 0.76 0.78 0.72 0.69 0.75
18 Phenolic Compound mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
19 Copper as Cu mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
20 Cadmium mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
21 Mercury as Hg mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
22 Selenium as Se mg/l
<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
23 Total Arsenic as As
mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
24 Lead as Pb mg/l
<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
25 Zinc as Zn, Max mg/l 0.32 0.28 0.32 0.24 0.22 0.25 0.38 0.41 0.44 0.39 0.41 0.42 0.32 0.34 0.35
26 Chromium as Cr
+6 mg/l <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
27 Aluminium as Al mg/l <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03
28 Manganese as Mn mg/l <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
29 Boron as B mg/l 0.23 0.25 0.21 0.25 0.27 0.23 0.26 0.29 0.24 0.30 0.33 0.27 0.24 0.26 0.22
30 Iron as Fe mg/l 0.15 0.16 0.18 0.16 0.17 0.19 0.17 0.18 0.20 0.19 0.20 0.23 0.15 0.17 0.19
31 Sodium as Na mg/l 42 40 45 45 43 47 48 45 50 55 52 57 44 42 46
32 Potassium as K mg/l 4 3 4 5 3 5 5 4 5 5 4 5 4 3 4
33
Dissolved Oxygen mg/l 6.3 6.4 6.1 5.9 6.5 6.2 6.1 6.5 5.8 6.2 6.0 6.4 6.6 6.2 6.5
34 BOD mg/l 6 8 9 7 9 8 8 10 10 8 11 10 7 9 12
35 COD mg/l 20 24 20 22 26 24 23 28 30 25 34 32 20 28 32
36 Total Coliform
MPN/100ml 398 412 423 375 402 451 397 426 478 453 486 545 366 392 440
37 Faecal Coliform
MPN/100ml 128 141 132 111 122 121 118 129 128 128 147 146 86 119 118
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Figure 3.11: Ground Water Sampling Locations
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
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Table 3.13: Ground Water Sampling Results
Project Site Adroda Juval Rupavat Zekadaa Rupal
SL. No.
Parameters
Units of Measure
ments Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec.
1 Colour
Hazen Units <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5
2 Odour - Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
3 Taste - Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
4 pH - 7.42 7.53 7.48 7.48 7.65 7.55 7.52 7.63 7.68 7.72 7.69 7.85 7.48 7.57 7.61
5 Temperature °C 27 26 25 26 25 25 27 26 26 26 25 25 25 25 24
6 Conductivity
µmhos/cm 498 520 505 538 562 545 605 632 613 697 728 705 629 658 637
7
Alkalinity as CaCO3 mg/l 184 195 196 199 210 212 224 235 237 258 271 274 233 246 248
8
Total Dissolved Solids mg/l 323 338 329 349 365 355 393 411 399 452 473 459 408 427 415
9
Total Hardness as CaCO3 mg/l 182 195 198 197 210 214 222 238 240 255 274 276 230 246 143
10 Calcium as Ca mg/l 47.4 46.7 48.9 51.2 50.5 52.8 57.8 56.8 59.4 66.5 65.4 68.3 59.9 59.1 61.7
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11
Magnesium as Mg mg/l 15.5 19.0 18.4 16.7 20.5 19.7 18.8 23.3 22.2 21.9 26.9 25.5 19.6 24.0 23.0
12 Chloride as Cl mg/l 52 55 50 56 60 54 62 68 60 72 78 68 64 70 64
13
Phosphate as PO4 mg/l 0.93 0.92 0.98 0.96 0.95 0.94 0.87 0.83 0.85 1.00 0.98 1.04 0.99 1.04 1.02
14 Nitrate as NO3 mg/l 9.4 9.5 10.1 9.2 10.3 10.9 10.3 11.6 12.2 11.9 13.3 14.1 10.7 12.1 12.7
15
Sulphate as SO4 mg/l 25 24 22 28 27 24 32 30 28 36 34 30 32 31 28
16 Fluoride as F mg/l 0.69 0.73 0.74 0.75 0.79 0.80 0.84 0.88 0.90 0.97 1.02 1.04 0.88 0.92 0.94
17
Phenolic Compound mg/l
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
18 Copper as Cu mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
19 Mercury as Hg mg/l
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
20 Cadmium as Cd mg/l
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
21
Total Arsenic as As
mg/l
<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
22 Lead as Pb
mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
23
Total Chromium as Cr
mg/l
<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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24 Iron as Fe mg/l 0.14 0.12 0.11 0.15 0.13 0.14 0.17 0.14 0.11 0.19 0.16 0.13 0.18 0.15 0.11
25 Sodium as Na mg/l 37 38 36 40 41 38 45 46 43 52 53 49 47 48 44
26
Potassium as K mg/l 3 4 3 4 5 3 4 5 4 5 6 4 4 6 3
30
Total Coliform
MPN/100ml
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
31
Faecal Coliform
MPN/100ml
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Table 3.14: Ground Water Sampling Results
Baola Diwan Sindhrej Kochariya Badrkha
Parameters
Units of Measure
ments Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec. Oct Nov. Dec.
Colour
Hazen Units <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5
Odour - Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Taste - Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
Agreeable
pH - 7.77 7.69 7.82 7.85 7.78 7.71 7.65 7.68 7.72 7.24 7.35 7.42 7.52 7.49 7.56 Temperature °C 26 26 25 25 24 24 27 26 25 26 25 25 26 25 24
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Conductivity
µmhos/cm 610 637 618 768 802 777 538 562 545 595 621 602 619 647 627
Alkalinity as CaCO3 mg/l 224 235 240 285 301 297 171 181 193 190 201 213 197 210 222 Total Dissolved Solids mg/l 396 414 402 498 521 506 349 365 355 386 404 392 402 420 408 Total Hardness as CaCO3 mg/l 222 238 242 281 299 304 196 210 214 217 233 235 227 242 246 Calcium as Ca mg/l 57.6 57.2 59.8 73.0 72.0 75.3 51.0 50.5 52.8 56.6 55.8 58.3 59.1 58.1 60.7 Magnesium as Mg mg/l 19.0 23.2 22.3 23.8 29.2 28.1 16.7 20.5 19.7 18.5 22.7 21.8 19.2 23.6 23.0 Chloride as Cl mg/l 65 68 60 78 86 76 56 60 54 62 66 58 65 72 63 Phosphate as PO4 mg/l 0.97 0.92 0.90 1.06 1.05 1.04 0.90 0.89 0.95 0.88 0.95 0.93 0.98 1.03 1.02 Nitrate as NO3 mg/l 10.4 11.7 12.3 13.1 14.7 15.5 9.2 10.3 10.9 10.1 11.4 12.0 10.5 11.9 12.5 Sulphate as SO4 mg/l 33 30 26 40 38 32 26 28 25 30 32 25 32 30 27 Fluoride as F mg/l 0.85 0.89 0.91 0.82 0.78 0.85 0.75 0.79 0.80 0.83 0.87 0.89 0.86 0.90 0.92 Phenolic Compound mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Copper mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
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as Cu
Mercury as Hg mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Cadmium as Cd mg/l <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Total Arsenic as As
mg/l
<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Lead as Pb
mg/l <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Total Chromium as Cr
mg/l
<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
Iron as Fe mg/l 0.17 0.14 0.11 0.21 0.18 0.14 0.15 0.13 0.10 0.17 0.14 0.11 0.17 0.14 0.13 Sodium as Na mg/l 45 46 43 57 58 54 42 41 38 44 45 42 46 47 43
Potassium as K mg/l 4 6 3 5 7 5 4 4 3 4 5 4 4 5 4
Total Coliform
MPN/100ml
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Faecal Coliform
MPN/100ml
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Absent
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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3.4.8 Biological Environment
The biological environment is an important component of the environment of any area. It
covers flora & fauna in the region, details of forests and wildlife sanctuaries in the region,
with list of endangered species. These components are addressed in details in the following
sections:
It is imperative to study the ecology of the area and essentially, how organisms are dependent
on the area in terms of resource utilization, habitat etc, also how organisms contribute to
sustain the ecology of the area. Secondly, we need to find out how the proposed project is
going to affect the biological environment.
Ecology of the proposed project area
The proposed project area falls under agro-climatic zone namely Gujarat Plain and Hill
Regions bio-geographic zone of India, having rainfall recorded 735 mm.Area is flat and low-
lying alluvium plain with general elevation of 25 m above MSL. The area is characterized by
Arid to Semiarid climate. Such climatic conditions provide opportunity to the flora for the
development of significant morphological structures even birds and animals also adapt
themselves as per the climate of the region. Such environment forces vegetation or even
animal to adapt accordingly. To reduce excessive amount of moisture loss from the surface,
vegetation of the region develop barbs or thorns on their branches, leaves or even bole etc.
Animals develop specific physiological and morphological changes.
Flora & Fauna
Flora and fauna are important components of the environment. They are organized into
natural communities with natural dependencies among their members and show various
responses and sensitivities to anthropogenic activities. Flora and fauna consists information
on various species of trees, plants, shrubs, crops and natural vegetation, animal, birds etc. and
endangered species.
Core Area
The core zone area is almost treeless and is mostly comprised with shrub individuals of
Calotropis procera, Indigofera sp, Cassia auriculata, Euphorbia caducifolia and Celosia
argentea. Ground vegetation of the core area wasdominated with Fagonia spalong with
grasses like Cynodon dactylon, Agrostis sp, Dichanthium annulatum and Eragrostis
Poaeoides.
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The proposed project site is surrounded by agricultural field. To carry out the ecology
biodiversity study the field survey was carried out in core and buffer area. Floral species were
identified and list of the species was prepared, whereas for fauna study species were recorded
by direct citing, simultaneously local people were interviewed and examine the presence of
any faunal species within the study area.
Buffer Area (10 Km radius of the proposed project)
Vegetation is mainly scrub and Xerophytic vegetation. Agro-ecosystems exist around the
study area.Acacia arabica and Prosopis juliflora were found dominant tree species in buffer
area. The other tree species recorded during field study were, Neem (Azadirachta indica),
Shisham (Dalbergia sissoo), Kachnar (Bauhniarecemosa), Dhak (Butea monosperma), Semal
(Bombax ceiba), Imli (Tamarindus indica), Moringa concanensis, Capparis deciduas,
Salvadora oleiodes, Lannea coromandelica, Sterculia urens, Grewia tenax and Bridelia
retusa. Dominant shrubby vegetation of this zone includes Aak (Calotropis procera),
Abutilon indicum, Achyranthes aspera, Boerhaviadiffusa, Agave americana, Cassia
auriculata, Celosia argentea, Euphorbia caducifolia, Euphorbia Tirucalli, and Lantana
camara. In herbaceous flora, Fagonia sp, Solanum virginianum, Agrostis sp, Cenchrus
biflorus and Agrostis sp.
A list of flora recorded during the field survey is given in Table 3.15 – Table 3.18. A list of
avi-fauna and animal species found during survey is presented in Table 3.19. to Table 3.23
Table 3.15:Large Trees species found in Study area
SN Scientific Name Family Vernicular
Name
1 Acacia auriculiformis Mimosaceae Australian Baval
2 Acacia catechu Mimosaceae Khair
3 Acacia nilotica Mimosaceae Baval
4 Albizzia lebeck Mimosaceae Siris
5 Azadirachta indica Meliaceae Limdo
7 Eucalyptus globulus Myrtaceae Nilgiri
8 Ficus virens Moraceae Pipli
9 Leucena leucocephala Mimosaceae Pardesi Baval
10 Parkinsonia aculeata Caesalpiniaceae Ram Baval
11 Peltophorum pterocarpum Caesalpiniaceae Tamrafali
12 Pongamia pinnata Fabaceae Karanj
13 Prosopis juliflora Mimosaceae Gando Baval
14 Prosopis spicigera Mimosaceae Khijado
15 Salvadora aleoides Salvodoraceae Pilvo
16 Salvadora persica Salvodoraceae Pilvo
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17 Samanea saman Mimosaceae Rato Sarasdo
18 Parthenium histerophorous Asteraceae Gajar Ghas
Table 3.16: Shrubs found in Study area
SN Scientific Name Family Vernicular Name
1 Cadaba indica Capparidaceae Telio Hemkand
2 Calotropis gigantea Asclepiadaceae Akdo
3 Calotropis procera Asclepiadaceae Akdo
4 Capparis sepiaria Capparidaceae Kerdo
5 Capparis sepiaria Capparidaceae Kanthar
6 Euphorbia nerifolia Euphorbiaceae Thor
7 Ipomoea fistulosa Convolvulaceae Nafatio
8 Nerium indicum Apocynaceae Lal Karen
9 Zizyphus rotundifolia Rhamnaceae Chani Bor
Table 3.17:Herbs and Grasses found in Study area SN Scientific Name Family Vernicular Name
1 Abutilon indicum Malvaceae Khapat
3 Cassia pumila Caesalpiniaceae Nai Chimed
4 Cenchrus setigerus Poaceae Dhaman Ghas
5 Chenopodium album Chenopodiaceae Chil
6 Chloris barbata Poaceae Mindadin
7 Clitoria ternatea Fabaceae Gokern
8 Cynodon cretica Convolvulaceae Rudanti
9 Cynodon doctylon Poaceae Darbh
11 Daemia extensa Asclepiadaceae Chamar Dudheli
12 Echinops echinatus Asteraceae Shulio
13 Heliotropium supinum Boraginaceae Ghedio Okharad
14 Heteropogon contortus Poaceae Dabhsuliu
15 Ipomoea aquatica Convolvulaceae Nali Ni Bhaji
16 Nymphaea stellata Nymphaeaceae Poyana
17 Triumfeitta rotundifolia Tiliaceae Gol Zipti
18 Typha angustata Typhaceae Ramban
19 Xanthium strumarium Asteraceae Gokhru
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Casia tora Flacourtia indica
Barleria cuspidata Anaphalis contortis
Capparis grandis Butea monosperma
Plate 3-1: Floral species found in the study area
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Sonchus arvensis Parthenium histerophorous
Ziziphus nummularia Calotropis procera
Acacia nilotica
Plate 3-2: Floral species found in the study area
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Table 3.18:Agricultural Crops found in Study area SN Scientific Name Family Vernicular Name
1 Triticum aestivum Poaceae Gehu
2 Oryza sativa Poaceae Chokha
3 Sorghum vulgare Poaceae Bajra
4 Gossypium herbaceum Malvaceae Kapas
5 Cuminum cyminum Apiaceae Jiru
Acridotheres tristis Sturnus pagodarum
Passer domesticus Ardeola grayii
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Vanellus indicus Pycnonotus cafer
Merops orientalis Corvus splendens
Upupa epops Streptopelia senegalensis
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Psittacula krameri Dendrocitta vagabunda
Plate 3-3: Avian species found in the study area
Table 3.19:Amphibian in Study area Sl Scientific Name Common Name Schedule
1 Euphllyctis cyanophlytis Skipper Frog IV
2 Bufo melanostictus Common Indian Toad IV
Table 3.20:Reptiles in Study Area Sl Scientific Name Common Name Schedule
1 Calotes versicolor Calotes IV
2 Mabuya carinata skink IV
3 Hemidoctylus flaviviridi Wall Lizard IV
4 Ptyas mucous Rat snake IV
5 Naja naja Cobra II
Table 3.21:Birds Spices found in Study Area Sl Scientific Name Common Name Schedule
1 Ardeola grayii Pond Heron IV
2 Bulbulcus ibis Cattle Egret IV
4 Vanellus indicus Red Wattled Lapwing IV
5 Himantopus himantopus Blackwinged Stilt IV
7 Streptopelia chinensis Spotted Dove IV
8 Streptopila tranquebarica Red Turtle Dove IV
9 Columba livia Blue Rock Pigeon IV
10 Alcedo athis Common Kingfisher IV
14 Corvus splendens House Crow V
15 Acredotheres tristis Common Myna IV
16 Pycnonotus cafer Red vented Bilbul IV
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17 Turdoides striatus Jungle babbler IV
19 Passar domesticus House Sparrow IV
Table 3.22: Mammals in Study area Sl Scientific Name Common Name Schedule
1 Funnambulus pennati Palm Squirrel IV
2 Herpestes edwardsii Mongoose IV
3 Golunda ellioti Indian Bush Rat V
4 Mus booduga Indian Field mouse/Chuha V
Table 3.23:Insects in Study area
Sl Scientific Name Common Name
1 Acheta domesticus House Cricket
2 Blatta germanica Cockroach
3 Musca domestica House Fly
4 Anopheles sp. Mosquito
6 Culex Sp. Mosquito
7 Eurema hecabe simulata Common Grass Yellow
8 Euploea core core Common Crow
9 Pheidole sp. Black Ant
10 Oecophylla smar Red Ant
11 Vespa sp. Wasp
12 Bombus sp. Bumble Bee
13 Stegodyphus sarasinorum Social Spider
14 Phidippus punjabensis Jumping Spider
15 Oxyopes shweta Lynx Spider
16 Hippasa sp. Funnel
17 Pardosa mukundi Wolf Spider
18 Lycosa sp. Wolf Spider
19 Argiope anasuja Garden Spider
Forests
There is no forest land within 10 km radius of the project field. There are 4 National Parks
and 21 Wildlife Sanctuaries in Gujarat; however, none of them is falling in the study area.
Even District Ahmedabad does not have any National Parks and Wildlife Sanctuaries. The
Forest and vegetation Map of Gujarat is shown in Figure 3.12 and National Parks with
Wildlife Sanctuaries Map of Gujarat is shown in Figure 3.13Error! Reference source not
found.:
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Forest Types
The state Gujarat has wide variations in Geomorphological and Eco-climatic conditions
ranging from hot saline deserts to humid hilly tracts and from coast to high hills have resulted
in to formation of various types of forest. The forest areas of Gujarat are unevenly distributed
and the major concentration of forests is found all along the eastern border of the state and
the hilly portion of Saurashtra. Major forests are found mainly in the districts of Dangs,
Valsad, Surat and Junagadh. A total of 14,653 km2 forest cover recorded in the State which is
about 11.74 % of the total state‟s geographical area. The present project area falls in the
Ahmadabad district which accounts a geographical area of 8,707 km2 having 151 km
2 forest
cover which is about 1.73% of the district‟s geographical area. Most of the forest area in the
district comes under Open Forest category (137 km2) and there is no dense forest area present
in the district (SFR FSI, 2013). According to Champion and Seth (1968), state has 4 major
forest type groups present in the state viz. Tropical Dry Deciduous Forests (5A), Tropical
Moist Deciduous Forests (3B), Littoral and Swamp
Protected Areas
There are no protected areas in the vicinity of the project area. There are also no monuments
of historical and archaeological importance within the study area.
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Figure 3.12: Forest Map of Gujarat (Source: Internet)
Figure 3.13: Map of National Parks and Wildlife Sanctuaries in Gujarat (Source:
Internet)
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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3.4.9 Socio-Economic Environment
The study area describes the circles of radius 10 km around the project site located at village
Salajada in the Ahmedabad district of Gujarat state. There is no any National Park/ Wildlife
Sanctuary or Reserved Forest (RF) in the study area. The land use pattern of the study area is
presented in the table below:
Table 3.24: Table: Land Use Pattern of the Study Area
Table: Land Use Pattern of the Study Area
S. No. Land Use Pattern Area (In Hec.)
1 Forest Land 14.4
2 Non-agricultural uses Land 857.8
3 Barren/Un-culturable Land 831.9
4 Permanent Pastures & Other Grazing Land 1,435.3
5 Miscellaneous Tree Crops Land 72.0
6 Culturable Waste Land 1,478.6
7 Fallows Land (Other than Current Fallows) 405.5
8 Current Fallows Land 619.0
9 Net Area Sown 26,412.9
10 Total Un-irrigated Land 7,992.1
11 Total Land Irrigated by Sources 18,420.9
11 (a) Land Irrigated by Canals 8,971.6
18,420.9 11 (b) Land Irrigated by Wells/Tube wells 7,820.3
11 (c) Land Irrigated by Tanks/Lakes 1,626.9
11 (d) Land Irrigated by Other Sources 2.1
In the study area, there are about 40 identified habitations in which 34 are villages and
remaining six are town areas, which are distributed in different sub-districts of Ahmedabad
district of Gujarat. All the identified habitations configuring approximately 49,033
households with population of almost 2,38,910. Based on number of households, the largest
habitation identified is Dholka which is a municipal town with 16,584 households having
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total population of 80,945 distributed as 41,905 males and 39,040 females. In the same way,
the second largest habitation identified is Baola which is also a municipal town with 9,089
households which constituting population of 42,458 with 22,341 males and 20,117 females.
Similarly, the third largest habitation identified is a village namely Badarkha with 1,966
households having total population of 10,002 distributed as 5,371 males and 4,631 females.
Whereas, based on number of households the smallest habitation identified is Morasiya
which is a villagewith 100 households constituting the village population of 646 with 342
males and 304 females. Similarly, the second smallest habitation identified is Amipura with
107 households having village population of 611 with 294 males and 317 females. The third
smallest habitation identified is Shekhdi with 136 households having the village population
672 with 351 males and 321 females. The top three highest literacy rate is observed in Baola
(84.8%) followed by Rajoda (83.8%) and Rupal (83.6%) in the district. Similarly, the bottom
three literacy rate is observed in Amipura (57.6%) followed by Juwal (57.7%) and Vasna
Dhedhal (59.3%).
The project village Salajada located at Baola sub-districtwith 321 households having
population of 1,423 with 736 males and 687 females forming the sex ratio of the village 933
females per 1,000 males. In the village about 12.7 per cent population belongs to (0-6) age
group having sex ratio of 828 boys per 1,000 girl child. The literacy rate in the project village
is 75.4 per cent with 86.7 per cent male and 63.6 per cent female literacy rate. Out of the total
population of the village, about 44.4 per cent are working and remaining 55.6 per cent are
non-working population. The project village has a government primary school, a primary
health sub-centre and a family welfare centre. The village is connected with the roads which
are black topped (pakka), gravel (kachcha) and footpath facilitated with public bus services,
auto & taxi services. The people of the project village mostly used Tap and Tank as a sources
for drinking water.
The project district Ahmedabad is located in the central part of the Gujarat state. The district
headquarters, Ahmedabad is the largest city in Gujarat and seventh largest urban
agglomeration in India. The district is spread across ten talukas viz. Barwala, Daskroi,
Dholka, Dhandhuka, Detroj, Sanand, Bavla, Ranpur, Mandal and Viramgam. Ahmedabad is
an industrial base for sectors such as textiles, chemicals, drugs & pharmaceuticals and agro &
food processing industries and is popularly known as the „Manchester of India‟. Textiles and
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Chemicals have been the major sectors of investment and employment in the district since
long time. Major crops being produced in the district are cucurbits, cabbage, cumin, citrus
and cotton. According to Census of India 2011, the district has a population of 72,14,225 of
which 37,88,051 males and 34,26,174 females. The overall sex ratio is 904 females per 1000
males. The child sex ratio (0-6 Age) is 857 girls per 1000 boys. The district has an average
literacy rate of 85.31% with male literacy of 90.74% and female literacy of 79.35%. The
population density of the district is 890/sq. km.
Main agricultural commodities in the study area are Wheat, Cotton, Paddy, Rice, Bajra,
Caster, Green Gram, Pigeon Pea, Pulses and Cumin etc.
District wise list of habitations/villages identified in the study area is given in the table
below:
Table 3.25: List of Villages in the Study Area
S.
No. Rural/Urban
S.
No. Rural/Urban
S.
No. Rural/Urban
01 Bavla (Urban) 15 Shekhdi 29 Hasannagar
02 Kerala 16 Juval Rupavati 30 Amipura
03 Dholka (Urban) 17 Saljada 31 Chiyada
04 Morasiya 18 Jalalpur Vazifa 32 Bhayla
05 Vasna
Chacharavadi
(Urban)
19 Ranoda 33 Sakodara
06 Rajoda (Urban) 20 Sindhraj 34 Lana
07 Rupal 21 Sari (Urban) 35 Shiyawada
08 Kochariya 22 Matoda (Urban) 36 Jalalpur
Godhaneshvar
09 Zekda 23 Modasar 37 Khanpur
10 Badarkha 24 Daran 38 Rajpur
11 Kavitha 25 Juwal 39 Lodariyal
12 Saroda 26 Vasna Dhedhal 40 Chaloda
13 Chandisar 27 Dhedhal
Total= 40 14 Vasna Keliya 28 Adroda
Baseline Data
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The baseline data with respect to population and amenities available in the study area has
been worked out as under:
I. Demographic Particulars:
Table 3.26: Demographic Particulars/Population Details of the Study Area
S. No. Description Number Percentage to
Respective Total
1 Total Population 2,38,910 100.0
Male 1,24,179 52.0
Female 1,14,731 48.0
Sex Ratio 924
2 Population (0-6 age group) 30,833 100.0
Male 16,528 53.6
Female 14,305 46.4
Sex Ratio 866
3 Population of Scheduled Caste
Community
31,951 100.0
Male 16,800 52.6
Female 15,151 47.4
Sex Ratio 902
4 Population of Scheduled Tribe
Community
883 100.0
Male 495 56.1
Female 388 43.9
Sex Ratio 784
5 Population of General Community
(including OBC)
2,06,076 100.0
Male 1,06,884 51.9
Female 99,192 48.1
Sex Ratio 928
6 Total No. of Households 49,033
Average Household Size 5
7 Total Literates 1,62,838 100.0
Male 93,414 57.4
Female 69,424 42.6
Overall Literacy Rate 78.3
Male 86.8
Female 69.1
Gender Gap in Literacy Rate 17.7
8 Total Workers 92,503 100.0
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Source: Census 2011
Population Composition
According to Census 2011, total population of the study area has been worked out to
2,38,910. The gender wise distribution of the above population is 1,24,179 (52.0 per cent)
male and 1,14,731 (48.0 per cent) female. The overall sex ratio in the study area has been
worked out to 924 females per 1,000 males.
Village wise population distribution with sex ratio is given in the table below:
Male 71,332 77.1
Female 21,171 22.9
Gender Gap in Work Participation Rate 54.2
9 Main Workers 77,372 100.0
Male 65,355 84.5
Female 12,017 15.5
Gender Gap in Work Participation Rate 69.0
10 Marginal Workers 15,131 100.0
Male 5,977 39.5
Female 9,154 60.5
Gender Gap in Work Participation Rate -21.0
11 Household Industrial Workers 3,599 100.0
Male 2,423 67.3
Female 1,176 32.7
12 Total Agricultural Workers 41,006 100.0
Male 29,500 71.9
Female 11,506 28.1
12 (a) Cultivators 13,040 100.0
Male 11,600 89.0
Female 1,440 11.0
12 (b) Agricultural Labour 27,966 100.0
Male 17,900 64.0
Female 10,066 36.0
13 ‘Other Workers’ 47,898 100.0
Male 39,409 82.3
Female 8,489 17.7
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Table 3.27: Village wise Population Distribution with Sex Ratio
S. No. Village/Town Population Sex
Ratio Total Male Female
01 Bavla (Urban) 42,458 22,341 20,117 900
02 Kerala 1,560 827 733 886
03 Dholka (Urban) 80,945 41,905 39,040 932
04 Morasiya 646 342 304 889
05 Vasna Chacharavadi
(Urban) 2,513 1,341 1,172 874
06 Rajoda (Urban) 3,232 1,686 1,546 917
07 Rupal 4,418 2,301 2,117 920
08 Kochariya 3036 1549 1487 960
09 Zekda 1,298 679 619 912
10 Badarkha 10002 5,371 4,631 862
11 Kavitha 7,591 3,925 3,666 934
12 Saroda 4,534 2,388 2,146 899
13 Chandisar 4,698 2,416 2,282 945
14 Vasna Keliya 5,776 2,977 2,799 940
15 Shekhdi 672 351 321 915
16 Juval Rupavati 1,566 810 756 933
17 Saljada 1,423 736 687 933
18 Jalalpur Vazifa 4,071 2,129 1,942 912
19 Ranoda 2,122 1,097 1,025 934
20 Sindhraj 2,577 1,313 1,264 963
21 Sari (Urban) 2,040 1,029 1,011 983
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22 Matoda (Urban) 2,597 1,334 1,263 947
23 Modasar 5,410 2832 2,578 910
24 Daran 3,651 1875 1,776 947
25 Juwal 4,545 2320 2,225 959
26 Vasna Dhedhal 2,748 1420 1,328 935
27 Dhedhal 3,146 1616 1,530 947
28 Adroda 2,474 1279 1,195 934
29 Hasannagar 1,504 779 725 931
30 Amipura 611 294 317 1,078
31 Chiyada 3,034 1,538 1,496 973
32 Bhayla 2,597 1,332 1,265 950
33 Sakodara 1,924 995 929 934
34 Lana 1,522 794 728 917
35 Shiyawada 2,256 1,165 1,091 936
36 Jalalpur
Godhaneshvar 906 480 426 888
37 Khanpur 1,451 751 700 932
38 Rajpur 897 482 415 861
39 Lodariyal 1,818 920 898 976
40 Chaloda 8,641 4,460 4,181 937
TOTAL 2,38,910 1,24,179 1,14,731 924
Source: Census 2011
Child Population Distribution
In the study area, the total child population of age group of (0-6) age group has been worked
out to 30,833 which constitute 12.9 per cent of the total population. Of the total child
population, 53.6 per cent are boys and remaining 46.4 per cent are girl child. The child sex
ratio in the age group (0-6) is 866 girls per 1,000 boys
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Source: Census 2011
Social Group Population Distribution
In the study area, Scheduled Caste (SC) population is 31,951 which constitute about 13.4 per
cent of total population of the study area. Of this, 52.6 per cent is male and remaining 47.4
per cent is female. The sex ratio among Scheduled Caste population has been worked out to
902 females per 1,000 males.
Further, the Scheduled Tribe (ST) population in the study area is about 833 which represent
only about 0.4 per cent of the total population. Of the total Scheduled Tribe population, 56.1
per cent is male and 43.9 per cent is female. The sex ratio among the Scheduled Tribe
population has been worked out to 784 females per 1,000 males. Among all the 40 identified
habitations, there are sixteen habitations namely Morasiya, Rajoda, Kochariya, Zekda,
Ranoda, Sari, Modasar, Daran, Dhedhal, Hasannagar, Amipura, Chiyada, Shiyawada,
Khanpur, Lodariyal and Chaloda where the population of this community does not subsist.
Village/Town wise SC and ST population distribution is given in the table below:
Table 3.28: Village wise Scheduled Tribe Population Distribution with Sex Ratio
S. No. Village/Town Population
SC Male Female ST Male Female
01 Bavla (Urban) 4,525 2,372 2,153 97 57 40
02 Kerala 297 152 145 07 04 03
03 Dholka (Urban) 8,337 4,389 3,948 408 227 181
04 Morasiya 236 128 108 00 00 00
05 Vasna Chacharavadi (Urban)
877 471 406 108 61 47
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06 Rajoda (Urban) 855 444 411 00 00 00
07 Rupal 421 220 201 10 08 02
08 Kochariya 410 218 192 00 00 00
09 Zekda 309 164 145 00 00 00
10 Badarkha 1,684 909 775 04 04 00
11 Kavitha 1,501 791 710 26 15 11
12 Saroda 745 391 354 13 06 07
13 Chandisar 720 388 332 06 03 03
14 Vasna Keliya 1,303 677 626 10 06 04
15 Shekhdi 36 18 18 08 05 03
16 Juval Rupavati 453 235 218 24 16 08
17 Saljada 225 116 109 40 21 19
18 Jalalpur Vazifa 647 348 299 06 03 03
19 Ranoda 882 466 416 00 00 00
20 Sindhraj 1,243 633 610 02 01 01
21 Sari (Urban) 222 116 106 00 00 00
22 Matoda (Urban) 100 59 41 39 23 16
23 Modasar 501 261 240 00 00 00
24 Daran 137 70 67 00 00 00
25 Juwal 137 75 62 01 01 00
26 Vasna Dhedhal 294 151 143 02 00 02
27 Dhedhal 261 142 119 00 00 00
28 Adroda 515 265 250 06 03 03
29 Hasannagar 211 112 99 00 00 00
30 Amipura 83 38 45 00 00 00
31 Chiyada 622 327 295 00 00 00
32 Bhayla 413 222 191 07 03 04
33 Sakodara 296 147 149 06 02 04
34 Lana 114 60 54 33 16 17
35 Shiyawada 161 80 81 00 00 00
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36 Jalalpur Godhaneshvar
143 75 68 13 06 07
37 Khanpur 128 62 66 00 00 00
38 Rajpur 229 126 103 07 04 03
39 Lodariyal 139 70 69 00 00 00
40 Chaloda 1,539 812 727 00 00 00
TOTAL 31,951
16,800
15,151 883 495 388
Furthermore, population of the „General Category‟ including „Other Backward Caste (OBC)‟
has been worked out to 2,06,076 which comprises about 86.3 per cent of total population of
the study area. Of this, 51.9 per cent is male and remaining 48.1 per cent is female. The sex
ratio among this segment of population has been worked out to 928 females per 1,000 males.
Household and Average Household Size
The entire population of the study area is distributed into approx. 49,033 households and the
overall average household size is five. At the habitation level, it has been observed that the
lowest average household size is four whereas that of the highest is six. The average
household size in the project village Salajada is four.
Literates, Literacy Rate and Gender Gap in Literacy Rate
In the study area, 68.2 per cent of the population is literate. The gender wise distribution of
literates is male 57.4 per cent and female 42.6 per cent. The overall literacy rate in the study
area has been worked out to 78.3 per cent. The male literacy rate is 86.8 per cent and female
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literacy rate is 69.1 per cent, creating a gender gap in literacy rate of 17.7 per cent. The three
highest literacy rates is observed in Baola with 84.8 per cent followed by Rajoda (83.8%) and
Rupal (83.6%) whereas that of the three lowest is observed in Amipura, Juwal and Vasna
Dhedhal with literacy rates of 57.6%, 57.7% and 59.3% respectively.
Source: Census 2011
Workers and Work Participation Rate
In the study area, total number of workers has been worked out to 92,503 which constitute
38.7 per cent of the total population. Of the total workers, 77.1 per cent are males and the
remaining 22.9 per cent are females. In absolute term, total number of male workers is 71,332
and that of female is 21,171. The gender gap in work participation rate is 54.2 per cent.
Further, of the total workers 83.6 per cent are Main Workers and the remaining 16.4 per cent
are Marginal Workers. Of the total Main Workers, 84.5 per cent are male and the remaining
15.5 per cent are female. The gender gap in work participation rate among the main workers
is 69.0 per cent. In case of Marginal Workers, 39.5 per cent are male and 60.5 per cent are
female which creates a gender gap in work participation rate of minus (-) 21.0 per cent which
indicates that in case of marginal workers, women‟s participation is larger than that of men‟s.
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Source: Census of India, 2011
Habitations wise distribution of working population is given in the table below:
Table 3.29 :Habitations wise Working Population
S. No. Village/Town Workers
Total Main Marginal
01 Bavla (Urban) 15,559 14,371 1,188
02 Kerala 938 485 453
03 Dholka (Urban) 28,936 24,295 4,641
04 Morasiya 260 230 30
05 Vasna Chacharavadi (Urban)
1,012 971 41
06 Rajoda (Urban) 1,073 1,069 04
07 Rupal 1,697 1,575 122
08 Kochariya 1,460 911 549
09 Zekda 654 654 00
10 Badarkha 3,883 3,308 575
11 Kavitha 2,898 2,328 570
12 Saroda 1,608 1,502 106
13 Chandisar 1,707 1,413 294
14 Vasna Keliya 2,784 2,299 485
15 Shekhdi 443 220 223
16 Juval Rupavati 631 530 101
17 Saljada 632 630 02
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18 Jalalpur Vazifa 2,101 1,462 639
19 Ranoda 752 666 86
20 Sindhraj 991 777 214
21 Sari (Urban) 740 658 82
22 Matoda (Urban) 1,184 752 432
23 Modasar 2,100 1,628 472
24 Daran 1,622 1,078 544
25 Juwal 2,023 1,538 485
26 Vasna Dhedhal 1,239 807 432
27 Dhedhal 1,544 1,247 297
28 Adroda 1,125 746 379
29 Hasannagar 890 796 94
30 Amipura 255 62 193
31 Chiyada 1,123 1,111 12
32 Bhayla 1,012 991 21
33 Sakodara 812 660 152
34 Lana 631 498 133
35 Shiyawada 873 830 43
36 Jalalpur Godhaneshvar 436 269 167
37 Khanpur 462 272 190
38 Rajpur 340 327 13
39 Lodariyal 835 560 275
40 Chaloda 3,238 2,846 392
TOTAL 92,503 77,372 15,131
Source: Census of India, 2011
The workers are further divided into Agricultural Workers, Household Industrial Workers
and „Other Workers‟. Their shares in the total workers are 44.3 per cent, 3.9 per cent and 51.8
per cent respectively.
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Source: Census of India, 2011
Of the inhabitants working in agricultural sector, 31.8 per cent are Cultivators who possess
cultivable land and the remaining 68.2 per cent are Agricultural Labour, who does not
possess land but work in the land owned by big farmers as wage earners or share cropper.
Source: Census of India, 2011
II. BASIC AMENITIES:
Table 3.30: Basic Amenities Available in the Study Area
Table: Basic Amenities Available in the Study Area
EDUCATION
Educational Institutions
Type of Institutes Number
Pre-primary School (Pvt.) 03
Primary School (Govt. & Pvt.) 86
Secondary School (Govt. & Pvt.) 26
Senior Secondary School (Govt. & Pvt.) 19
Special School for Disabled (Govt.) 01
Degree College- Art & Commerce (Pvt.) 01
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Degree College- Others (Pvt.) 04
Vocational Training Institute (Govt. & Pvt.) 07
HEALTH
Health Facilities
Type of Facilities Number
Hospital (Allopathic) 04
Hospital (Alternative) 01
Hospital (Veterinary) 03
Hospital/Clinic (T.B.) 01
Hospital (Charitable: Non-government) 06
Dispensary 03
Nursing Home 02
Non-Govt. Medical Facilities (For In & Out Patient)
08
Non-Govt. Medical Facilities (For Out Patient) 56
Primary Health Centre 03
Primary Health Sub-Centre 17
Family Welfare Centre 02
Maternity & Child Welfare Centre 04
Maternity Home 02
WATER
Drinking Water
Means of Drinking Water No. of Habitations where the facility available
Tap (Untreated) 40
Hand Pump 13 Tube Well 30
Well (Covered) 02
Well (Uncovered) 09
River 12 ELECTRICITY
Electricity Supply
Power for Domestic Uses 40
Power for Agriculture Uses 40
Power for Commercial or Industrial Uses
40
ROAD
Approach Road
Black Topped (Paved/Pucca) Road
39
Gravel (Mud/Kachcha) Road
25
Footpath Road 40
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TRANSPORTATION
Road Transportation
Public Bus Services 40
Private Bus Services 14
Auto Services 09
Taxi Services 09
Source: Census of India, 2011
Other amenities available: Agricultural Credit Society, Nutritional Centre (Anganwadi),
ASHA, Public Distribution System (PDS) Shops, Agricultural Marketing Society,
Nationalized Bank, Cooperative Bank, Post Offices, Internet Cafe, Public Telephone Booths,
Private Courier Facility, Self-Help Group (SHG), Public Library and Public Reading Rooms
etc.
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CHAPTER-4 : Anticipated Environmental Impacts and
Mitigation Measures
4.1 Impacts
Matrix methodology has been adopted for the impact assessment of this project. This method
incorporates a list of activities and their likely environmental impacts, presented in a matrix
format. Combining these lists as horizontal and vertical axes in the matrix allows the identification
of cause-effect relationships, if any, between specific activities and impacts. In this case, the
entries of the matrix are qualitative estimates of these cause-effect relationships. Table 4.1
summarizes the interactions between the proposed project and the sensitivities of the local and
regional environment. At this stage, the interactions are not quantified but simply identified for
further consideration in the environmental impact assessment.
Table4.1: Impact Matrix
Impacts due to
Project
Activities
Environmental Sensitivities
Physical Biological Socio-Economic
So
il a
nd
sed
imen
t
Wate
r Q
uali
ty
Air
Qu
ali
ty
No
ise
Flo
ra
Fau
na
Liv
ing
co
nd
itio
ns
of
local
peo
ple
Eco
no
my
Pers
on
nel/
sup
po
rt c
rew
s
Arc
haeo
log
y
To
uri
sm/L
eis
ure
Lan
d U
se
1. Site
Selection
2. Site
Preparation &
Installation of
Facilities
X X
3. Road
Construction
X
X
X
X X X X
4. Drilling
Operation
X X X X X
a. Physical
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Impacts due to
Project
Activities
Environmental Sensitivities
Physical Biological Socio-Economic
So
il a
nd
sed
imen
t
Wate
r Q
uali
ty
Air
Qu
ali
ty
No
ise
Flo
ra
Fau
na
Liv
ing
co
nd
itio
ns
of
local
peo
ple
Eco
no
my
Pers
on
nel/
sup
po
rt c
rew
s
Arc
haeo
log
y
To
uri
sm/L
eis
ure
Lan
d U
se
Presence
b. Noise &
Vibration
X X X X X
c. Atmospheric
Emissions
X X
d. Waste Water
Generation
X
e. Solid /
Hazardous
waste disposal
X X X X
f. Impact on
Land due to
Drilling
X X
g. Socio-
economic
impacts due to
Drilling
Operation
X X
4.1.1 The Major Activities that may have Impact on Environment
Physical Presence: The rig support equipments can represent a temporary obstacle to other
activities including the movement of wild animals.
Atmospheric Emissions: Routine emission to ambient air results from the operation of DG sets to
be used for power generation. Generally the testing of the well also results in emission to
atmosphere by the way of flaring of produced hydrocarbons.
Noise & Vibration: Noise and vibration is expected to be generated from DG sets and mud
pumps during drilling operation.
Wastewater Generation: Waste water is expected to be generated from the operations, in the
form of excess drilling fluid discharge and also from domestic uses.
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Solid/ Hazardous Waste Disposal: Waste includes spent mud, wastewater, drill cuttings, sewage
and garbage/refuse (solid waste). These will be collected and transferred for disposal.
Impact on Land due to Drilling: Soil compaction due to equipment transport and movement off-
road vehicles during drilling activity could result in loss of topsoil and decrease in soil
productivity. Soil contamination due to spillage of liquids from drilling activities, surface
disturbance associated with activities such as road construction, well pads, and removal of
vegetation.
4.2 Assessment of Impacts and Mitigation Measures
4.2.1 Physical Presence
The drilling sites will be located on a small platform and the undulations around the platform will
be leveled by earthmoving machinery. Pits for drilling mud, sludge and waste water will also have
to be constructed. Site-preparation shall take place in parallel with the road-construction. Once
the site has been prepared and the drilling equipment set up, the disturbance level is likely to go
down.
Drilling will be confined to a relatively small area and staff will be restricted to the fenced
location or along the access road. Overall, experience shows that interference can be avoided over
the short drilling period by introducing good management practices and the impact of the physical
presence of the drilling program is anticipated to be negligible.
4.2.2 Noise and Vibration
For hemispherical sound wave propagation through homogeneous loss free medium, the noise
levels at various locations from different sources can be estimated by using the relation:
Lp2 = Lp1 20 log (r2/rl) – Ae1,2.
Where Lp1 and Lp2 are sound levels at two points located at distances r1 and r2 from the source.
Ae1, 2 is the excess attenuation due to environmental conditions. Combined effect of all the sources
then can be determined at various locations by using the principle of logarithmic addition:
Lptotal = 10 log (10(Lp1/10)
+ 10(Lp2/10)
+ 10(Lp3/10)
+ ………
)
The noise generated due to the diesel engines operating the rig along with the mud circulation
system is considered the most significant of the noise generating sources in the drilling operation.
Generally, the noise sources in a drilling well are scattered within an area of about 100 m x 100 m.
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It may be noted that the drilling operations will be carried out at a distance of more than 1 km
away from human habitation. Thus the noise pollution can be considered as negligible for the
nearest human habitation.
The noise propagation modeling performed for noise generation due to operation of the diesel
engines shows the following exposure levels (Table 4.2) in terms of the occupational and human
settlement exposure levels.
Table 4.2: Occupational and Human Exposure Levels
Type of exposure Predicted exposure level dB(
A)
1. Occupational exposure
Leq (8 h) at drilling platform (rig, mud
circulation system, Diesel engines)
104
Leq (8 h) at the site boundary (about
40 m from drilling platform)
64
2. Human settlement exposure
Leq (24 h) at villages 0.5 km or more away 54 (day)
47 (night)
The background noise level in the rural/ residential areas has been observed in the range of 45.4-
54.5 dB (A) during daytime (Chapter 3) and 37.5 – 44.0 dB (A) during nighttime.
The damage risk criteria for hearing, as enforced by OSHA, USA, stipulate that noise levels up to
90 dB (A) are acceptable for 8-hour exposure per day. In this context, it is to be noted that:
At places, excepting the drill floor and near the mud pumps, continuous attendance of
workers is not required. Hence, the workers, other than those working at the drilling platform, will
not be exposed to continuously high noise levels.
The noise level at the drilling platform is of concern from occupational health
consideration and adequate protective measures aimed at reducing the effect of noise levels will
have to be taken for these workers.
The noise levels predicted for the human settlements will be below the levels specified
by the CPCB for residential areas.
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4.2.3 Air Environment
There is no area source considered for the purpose of impact predictions on air environment. The
point sources identified are diesel engines/generator sets at drill site and flaring of gas subsequent
to drilling, in the event of striking oil/gas. In this respect, the following are taken into
consideration:
The diesel engines and associated generators will be in operation 24 hours a day during
the drilling period, to provide power to the drilling rig, and mud circulation system and
for providing power to accommodation units at site.
Low sulphur diesel will be used as a fuel for operation of diesel engines/power
generators.
The gas flaring during testing of wells.
Dispersion Modeling for Emission from Flare Testing
Results obtained from dispersion modeling using similar meteorological conditions were used to
assess the incremental increase in CO, SO2 and NO2 in ambient air. The dispersion model had
considered following possible scenarios that is also applicable in the present case:
Flaring at the rate of 10,000 m3/day of natural gas at the drilling site. Such a scenario may
occur in case of an oil well having associated gas.
The dispersion modeling studies conducted for the flaring of natural gas are based on the
following assumptions:
The NO2 emission rate is 1.4kg/Mg of natural gas flared. (Source: EMEP/EEA
emission inventory guidebook 2013).
The SO2 emission rate is 0.013kg/Mg of natural gas flared. (Source: EMEP/EEA
emission inventory guidebook 2013).
The CO emission rate is 6.3kg/Mg of natural gas flared. (Source: EMEP/EEA emission
inventory guidebook 2013).
The flare gas density is 0.8 kg/m3. (Source: EMEP/EEA emission inventory guidebook
2013).
The heat emission due to the flaring of natural gas is 52.2KJ/g. (Source: Calorific
Value of Natural Gas).
The Model
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The impact of flaring and emissions from DG Sets on ground-level concentrations (GLCs) of
pollutants in ambient air was predicted using the AERMOD View model. GLCs were forecast
based on the worst meteorological conditions, i.e. high atmospheric stability and low wind speed.
Results
The GLCs of the pollutants due to flaring are as follows:
Table 4.3: Predicted GLCs due to Flaring S.No. Pollutants Incremental
Value, µg/m3
Baseline Data,
Max, µg/m3
GLCs , µg/m3 Standards
(NAAQS) µg/m3
1 NO2 (24-hr) 1.76 26 27.76 80
2 SO2(24-hr) 0.016 14 14.016 80
3 CO (1-hr) 55 1000 1055 4000
If we compare the above results with NAAQS 2009 standards, it can be easily inferred that the
flaring will not affect the existing environment very much as it will add very less pollutants to the
available baseline environment. Emission of gases from power generation on the drill rig is of
relatively low volume. Although such power generation emissions will contribute in a small way
to the overall pool of greenhouse and acidic gases in the atmosphere, totals emitted are relatively
small and local environmental effects will be negligible.
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Figure 4.1: GLC of SO2 (24 Hours) during Flaring
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Figure 4.2: GLC of NO2 (24 Hours)during Flaring
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Figure 4.3: GLC of CO (1 Hour)during Flaring
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Dispersion Modeling for Stack Emissions
The only source of emission is from DG Sets used during drilling operation. As a result,
stackemission from generators would constitute mainly NO2, PMand CO. The details of the DG
sets are given in Table 4.3.
Table 4.4: Stack & Emissions Characteristic
Parameters Particulars
No. and Capacity of Generators 4 x 360 KVA
Total HSD Fuel Consumption 170 lit./hr
No. of Stacks 4
Stack Height above the Ground level (m) 30
Stack Diameter (m) 0.3048
Flue Gas Exit Velocity (m/s) 22.85
Flue Gas Exit Temperature (K) 623
Emission Rate (g/s)
NO2 1.78
CO 1.55
Particulate Matter 0.09
Modeling Results
24 Hourly Maximum Ground-Level Concentrations (GLC‟s) for the pollutants to maximum
distance (m) in 10 km study area are presented in Table 4.5.
Table 4.5: Predicted Maximum GLCs due to DG Set
Parameter Incremental
Concentration
(g/ m3)
Baseline Data,
Max, µg/m3
GLCs, µg/m3 Standards
(NAAQS) µg/m3
NO2(24 hr) 24.1 26 50.1 80
PM(24 hr) 1.22 96 96.122 100
CO (1 hr) 147 1000 1147 4000
Similarly with the flaring results, here during DG set operation for drilling the pollutant emission
will be very less as compared to the existing baseline data. This will add only a very negligibale
amount of additional pollutant concentration and hence, the drilling operations will not cause
much pollution.
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Figure 4.4: GLC of CO (1 Hour)during DG Set Operation
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Figure 4.5: GLC of NO2 (24 Hour)during DG Set Operation
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Figure 4.6: GLC of PM (24 Hour)during DG Set Operation .
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It is to be noted that the Ambient Air Quality Monitoring stations were located at areas where
some amount of human and other activities were present. Compared to this, the well sites will be
located far from the human settlements and activities, where the parameters are expected to have
even lower values. Thus, the contribution of the drilling activities to the overall ambient air
quality will be insignificant considering the actual background values.
Practical steps to limit atmospheric emissions are undertaken during all drilling operations and
these will be adopted during the drilling program for the proposed exploration wells. These
include:
Advanced planning to ensure efficient operations;
Well maintained and operated equipment and generators;
Regular monitoring of fuel consumption.
4.2.4 Water Environment
The survey of the water environment in the area reveals that both surface water and ground water
sources are free from the usual contaminants (Chapter 3). However, the surface water is likely to
be bacteriologically contaminated. The water can be used for drinking and other purposes after
appropriate disinfection procedure.
During the drilling operations, the wastewater generated will consist of the spent drilling fluids,
waste liquid and water used for washing. This wastewater will be appropriately treated and
temporarily contained in specially designed lined pits (HDPE liner) pits during the drilling
process. This is in line with CPCB regulations and will ensure no percolation into the ground. The
composition of the drilling fluid is largely water and barite, bentonite with additives like K2SO4
and glycol. The samples of barite & bentonite to be used will be tested for heavy metals to
confirm that heavy metals are below the prescribed discharge limits set by the CPCB. The
wastewater will be treated mainly through flocculation & precipitation followed by dilution prior
to discharge or reuse .
Separate drainage facilities will be provided for storm water and other non-harmful effluents.
This run off will be channeled to a drilling mud source water pit to be used for drilling and
dilution operations. This measure will ensure minimum infiltration into ground water resources of
the area.
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The toilets and urinal at the site for use by the onsite personnel will be attached to a standard
sewage system comprising of septic tank and soak pits with concrete base to avoid infiltration of
sewerage water into the soil and ground water system.
Other possible contaminants are chemicals associated with the cementing process. These will be
caught in the return fluid during cementing and treated with the mud effluents.
In order to minimize potential environmental impacts on ground aquifer, the following measures
will be incorporated into the drilling and Environment Management Plan (EMP):
Installation of cuttings and fluid cleaning/treatment equipment to ensure optimal
cleaning of cuttings to reduce the amount of fluid that will be discharged with the cuttings as
far as practicable. The waste fluid generated will be treated and either reused or diluted and
discharged.
Putting in place management procedures to ensure optimal performance of the cuttings
cleaning equipment and shaker screen housekeeping.
Maintaining a continuous drill fluid mass balance throughout the drilling program.
Optimization of hole sizes to minimize the amount of rock to be drilled.
Wastewater generated from rig wash down may contain trace amounts of drill fluid, lubricants,
and residual chemicals resulting from small leaks or spills. The volume of these discharges
depends on the frequency of wash down and amount of rainfall. The wash down areas, all storage
areas and areas that might otherwise be contaminated with oil will be made of concrete and would
be segregated from other areas to ensure that any accidental spills are contained and the fluid
separately treated.
4.2.5 Solid and Hazardous Waste Impacts
The major waste product from a drilling operation is the generation of rock cuttings, plus small
amount of associated residual fluids adhering to the cuttings. It is estimated that from each drilling
operation 900 cum of cuttings are likely to generate. These cuttings will be treated and then stored
at site in HDPE lined pits.
Other waste products include garbage, food scraps, scrap metal, waste oil and surplus chemicals.
Careful attention will be given to minimize the amount of waste generated and controlling its
eventual disposal. Wherever possible all waste material will be segregated by type, color, and
garbage will be stored in a designated area. These wastes will be stored in suitable containers and
will be recycled or disposed of in a controlled manner through authorized waste contractors.
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Material like scrap metal, waste oil and surplus chemicals will be sent for recycle or reuse as far
as practicable.
Also, regarding the disposal of sewage, a septic tank and a soak pit arrangement will be provided
at site comprising of two-compartment waterproof chamber (designed as per the no. of users)
which will receive all waste from the toilet blocks. The night soil will undergo decomposition in
the first chamber through an anaerobic process and subsequently flow into the second chamber.
The two chambers will have an orifice in between at a designed level normally 1-1.5 meters above
the floor level. Most of the decomposed waste will be retained in the first chamber and any
suspended waste settles down in the second chamber. The effluent water will be allowed to move
into a soak pit, which is a deep circular pit dug below the NGL, partially lined at the
circumference and stacked with brick bats. The structure will be covered at the top. Water will
trickle through the bricks and be soaked in the ground. Proper implementation of environmental
management plan will ensure that there will be no impacts on land environment due to solid and
hazardous waste generated from the drilling operations.
4.2.6 Socio-Economic Environment
1. Impact on Demographic Composition
Resulting of the proposed project, there will be no substantial increase in inclusive population of
the study area as preferably inhabitant people will be recruited for employment. The migrants
from distant places will be kept bare minimum. Hence, there will be no significant impact on the
demographic composition in the study area. Since there will be no significant change in
population, the overall sex ratio will remain more or less same. Also, since the proposed project
site is not inhabited, therefore it does not involve rehabilitation & resettlement of people.
2. Impact on Employment Opportunities
One of the greatest impacts of the proposed project is creation of employment opportunities. It is
expected that a good number of people may get direct employment opportunities including skilled,
semi-skilled and unskilled workers along with some indirect employment opportunities. This may
change occupational, income & expenditure pattern of the people. The benefits of employment to
successful job seekers are expected to include, at a household and individual level, in increase in
socio-economic and health status, improvement to their quality of life and living condition, and
the benefits from greater household expenditure on education and healthcare resources.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Employment will benefit a greater number of individuals than the total workforce number, as
positive changes at a household level will benefit (including women), relatives and young people.
3. Industrial Development
The proposed project will contribute in enhancement of production of crude oil & gas and
accordingly it is expected to contribute in the development of the country and local areas. The
increased production would generate additional revenue for the State Government as well as for
Central Government by way of payments on account of Royalty and Taxation. It is also expected
that the proposed project will play part in reducing the gap between demand & supply of crude oil
& gas in the country, which will help in reducing the import burden of the country. It will open
the venture for city gas in the remote areas. Hence, it may expect that due to the proposed project,
the scope for further industry movement will increase towards oil & gas projects to support
production of oil & gas products into the state and across the nation.
4. Impact on Transportation
The proposed project would result in the need to improve access roads since it would result in an
increase in industrial traffic of numerous heavy vehicles on project site. Overweight and oversized
loads could cause temporary disruptions and could require extensive modifications to roads. An
overall increase in traffic of heavy vehicles would accelerate the deterioration of pavement, and
require schedule pavement repair or replacement more frequently than under the existing traffic
conditions. Increased traffic may also result in a potential for increased accidents within the
project area. Increased recreational use of the area could contribute to a gradual increase in traffic
on the access roads. Therefore, infrastructure improvement by repairing or constructing roads will
be required in the area.
5. Impact on Agriculture
Since, the proposed project‟s route is also characterized as agricultural land. Hence, for a
particular time period there may be likely impact on the agricultural yield in the study area.
Farmers could be affected by loss of available grazing or crop lands. But, by making proper
arrangement & planning for the route it might be possible to minimize impact on agricultural land
and agricultural operations. By creating an environmental protection plan outlining what must be
done to protect the agricultural land during the drilling/project in operation. The plan may covers
aspects like how top soil and sub-soils will be replaced after the drlling is done, and where to
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 102
leave gaps during construction to allow farm machinery and livestock to cross. By regularly
inspect and perform maintenance on all project compoenents in order to reduce impact on farming
operations, the project proponent may work with landowners to schedule the work to take place
around growing season.
6. Impact on Law & Order
No major law & order problem is envisaged due to the proposed project. It is expected that the
workers will attend to their duties from their residences and return to their homes after the day‟s
work.
Identification of Impact
Developmental activities e.g. Industrialization have negative impact on habitat of the species and
ecology of surrounding area. Primarily biodiversity may get affected by the project activities
hence it is essential to identify the possible impacts of any proposed project on biodiversity and
find out the way to mitigate impact as sustainable manner.
4.3 Impact on Ecology
As per primary ecological study there no any Rare, Endangered, Threatened floral and faunal
species has been found in the study area. No economically important plants, medicinal plants are
found inside the study area.
The native flora and fauna of study area will be affected due to oil exploration. Oil exploration
may cause habitat conversion, degradation, and fragmentation, contamination from improper
waste disposal or oil spills. Following table describes briefly how the oil exploration may affect
the plants species.
Development Process Sources of Impact Impact on plants
Drilling and completion Mud and cuttings, which
may contain chemical
additives, salts, metals, and
hydrocarbons, are often
stored in pits and buried on
site. This may sterilize soil.
Soil sterilization
Stimulation Many fracturing chemicals
are hazardous, and may
contaminate soil if spilled on
site.
Contaminate Soil
Produced water/ Fluids Salts, metals, hydrocarbons
or traces of chemical
additives in produced water
Contaminated soil
Contaminated water
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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may contaminate soil if
spilled o the surface or
stored in earthen pits.
Produced water can also be
toxic to plant at high
concentrations
Direct harm to plants
Separation and
Dehydration
Pits or tanks that store
wastewater may leak or
overflow and contaminate
soil.
Contaminated soil
Gas Compression Soil and water pollution may
occur due to spills or leaks
of diesel or other fuel used
to power the compressors.
Contaminated soil
Contaminated water
Access Roads Roads compact soils and can
introduce non-native plant
species.
Direct loss of plant habitat
Direct harm to plants
Introduction of competitive
non-natives
Prevent new plant growth
Construction/Siting Well pad construction
converts plant habitat and
causes soil compaction.
Direct loss of habitat
Direct harm to plants
Habitat conversion
Habitat fragmentation
Also fugitive particles deposition on the agriculture fields and on standing crops may dropdown
the soil fertility and yield of crops. This may reduce the yield and quality of fodder grasses, fodder
species, and dissipate the milk quality of cows and buffalos feeding on it.
Noise due to drilling, and frequent vehicular movement may cause disturbance of movement of
animals. In that way, faunal species are very sensitive to any fragmentation in their habitat. Such
huge disturbance may leads to behavioral changes in animals, birds, and reptiles too.
The project will create significant ecological and environmental impacts on the following
components:
Discharge of wastewater and Oil exploration inflow water discharge (waterwill be stored into
abandoned voids)
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Aesthetic value loss (Due to exploration and developmental activities the area would
depreciate aesthetic value of the area, only an effective and systematicgreenbelt development
can help improving the aesthetic value of study area)
Soil compaction (Oil exploration may exert the negative impactson soil fertility, cause soil
compaction , microbial biomass etc.)
Drilling activities (fugitive dust, noise and vibration issues)
Installation of the land drilling rig will cause the vegetation removal and top soil removal
Ambient Air Quality (air pollution due to exploration and vehicular movements).
Ambient noise quality (blast and vibration, HEMM and vehicular movement).
Oil spillage may cause blocking of soil macro and micro pores, hereby hindering soil aeration
and water infiltration.
Similarly oil spillage during handling might hinder photosynthetic capacity of the plants if
plants get exposed to crude oil.
Oil spills result in an imbalance in the carbon -nitrogen (C/N) ratio at the spill site because
crude oil is essentially a mixture of carbon and hydrogen. This causes a nitrogen deficiency in
an oil-soaked soil which retards the growth of bacteria and the utilization of carbon
sources.
4.3.1 Proposed Mitigating Measures
To mitigate the possible impacts of drilling on ecology of the surrounding area following
mitigation measures would be taken in to consideration
I. Systematic exploration drilling methods will be followed. Drilling would be carried out
using cutting edge technology to reduce the impact of vibration and noise on Ecology and
biodiversity. There must have some monitoring mechanisms to look after the day to day
environment of the project and to ensure that the mitigation measures are implemented
effectively in function.
II. Fugitive particles remain always an issue. To mitigate the impact of such emissions water
sprinkler will be used on haul road for transportation of crude oil.
III. The three tier system for greenbelt will be developed with the help of economically
beneficial shrubs/ trees, floriculture, greenbelt in and around lease areas, and for avenue
plantation along haul roads. Green belt will also be very important to reduce the excessive
noise level.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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IV. Lime shall be applied to the crude oil contaminated soil so as to reduce the toxic
deposition in the soil and reduce the high pH level.
V. Fertilizers such as NPK shall use to replenish the soil nutrients, tetrachloromethane and
benzene as solvent shall use for soil treatment.
VI. Microbial inoculation in the soil shall doe since bacteria and fungi are the only biological
species which have the metabolic capacity of utilizing petroleum carbon for simpler form.
VII. Institutional mechanism like separate cell will be established to supervise and monitor
various mitigation measures.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 106
CHAPTER-5 : Analysis of Alternatives
No alternate site is considered as drilling operations are proposed to be carried outwithin the
existing Mining Lease of Baola Field.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 107
CHAPTER-6 : Environment Monitoring Program
Regular monitoring of environmental parameters is of immense importance to assess the
status of environment during project operation. With the knowledge of baseline conditions,
the monitoring programme will serve as an indicator for any deterioration in environmental
conditions due to operation of the project, which will enable to take suitable mitigatory steps
in time to safeguard the environment.
Monitoring is important to measure the efficiency of control measures. An environmental
impact assessment study is carried over for a specified period of time and the data generated
for that specific period cannot bring out all variations induced by the natural or human
activities. Therefore, regular monitoring programme of the environmental parameters is
essential to take into account the changes in the environmental quality. The objectives of
monitoring are to-
Verify effectiveness of planning decisions;
Measure effectiveness of operational procedures;
Confirm statutory and corporate compliance; and
Identify unexpected changes.
Monitoring will confirm that emissions are within the prescribed limits. This will take the
form of direct measurement and recording of quantitative information, such as quantity and
concentrations of discharges, emissions and wastes for measurement against corporate or
statutory standards, consent limits or targets. It may also require measurement of ambient
environmental quality in the vicinity of a site using ecological/biological, physical and
chemical indicators. Monitoring may include socioeconomic interaction, through local liaison
activities or even assessment of complaints.
The preventive approach by management may also require monitoring of process inputs, for
example, type and method used, resource consumption, equipment and pollution control
performance etc. Monitoring will also be required to meet compliance with statutory and
corporate requirements. Finally, monitoring results will provide the basis for auditing.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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6.1 Environmental Monitoring Schedule
An environmental monitoring plan is suggested to monitor environmental parameters during
survey, drilling and post drilling phase of the project. The monitoring plan is given in Table
6.1, 6.2 and 6.3 below. This monitoring plan is designed for ten years.
Table 6.1: Recommended Environmental Monitoring Protocol – Pre Drilling
Phase
Receptor Location Monitoring
Mechanism
Monitoring and
Reporting Frequency
Ambient Air
Quality
At project Location Monitoring NOx, SO2,
SPM, RPM, CO and
HC
Twice a week for a
month prior to drilling
Surface
water
Quality (if
available
during
monsoon)
Water bodies within
the radius of 1 km
from the project site
pH, conductivity, Total
Suspended Solids,
Total Dissolved Solids,
heavy metals, BOD and
COD
At least three samples
prior to drilling
Groundwater
Quantity
Within the radius of
1 km from the
project site. Water
sources used for
construction
purposes and dug
wells within 500 m
from wastewater
and mud ponds
Physico-chemical
parameters, heavy
metals and toxic
organic compounds
At least three samples
from one location prior
to drilling. The
monitoring should be
done at minimum four
locations, one location
on each direction
Noise Levels
At Project location For Background Noise
Levels (using Noise
meters)
Daily for a month prior
to drilling
Physical
Infrastructur
e
At Project Site 1. Lining of waste
ponds, drill cutting
ponds with 1 mm
HDPE sheets
2. Oil & grease
traps on outlets;
storm water runoff
points.
3. Presence of
impervious liners in
place for fuel,
lubricants storage
During site preparation
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Receptor Location Monitoring
Mechanism
Monitoring and
Reporting Frequency
area and drains with
oil entrapment
provision
4. Mud and work
associated system is
separated from
rain/storm drainage
system
5. Separate run off
routes for non-
contaminated and
contaminated run
off. Treatment
facilities for the
contaminated run off
6. Septic tank &
soak pits of adequate
size and presence of
bunds around the pit
7. Suitable
covering of soak pit
to arrest fly and
rodent nuisance
8. Impervious
flooring in fuel
storage and
refuelling areas
9. Chemical
storage should be
suitability covered
and imperviously
lined
Clearance of
Trees (if
existing)
At Project Location Inventory of trees
likely to be cut and
number of trees to be
planted as part of
Compensatory Tree
Plantation program.
During site preparation
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Table 6.2: Recommended Environmental Monitoring Protocol - During Drilling
Phase
Receptor Location Monitoring Mechanism Monitoring &
Reporting
Frequency
Natural
Resource
At Project site 1. Quantity of each type of
material used including water
consumption
2. Quantity of fuel used for
power
3. Quantity of fuel used by
transportation to and from rig
location & base
4. Percentage of material
used that have been reused or
recycled from waste.
Daily during
drilling phase
Ambient
Air Quality
At project
Location
Monitoring NOx, SO2, SPM, RPM,
CO and HC
Twice a week
for 24 hours
Surface
Water
Quality ( if
available
during
monsoon)
Water bodies
within the radius
of 1 km of project
site that will be
utilized for
consumption and
disposal
pH, conductivity, TSS, TDS,
heavy metals, BOD, COD etc
Every fortnight.
The monitoring
should be done
on the same
location where
monitoring was
done in pre
drilling phase
Groundwate
r Quality
Water sources used
for construction
purposes and dug
wells within 1km
from wastewater
and mud ponds.
Physico chemical parameters,
heavy metals and toxic organic
compounds.
Every fortnight.
The monitoring
should be done
on the same
location where
monitoring was
done in pre
drilling phase
Noise &
Vibration
At Rig Site, near
DG sets and
drilling pumps.
1. Noise level monitoring
2. Maintenance of machineries
3. No unnecessary operation of
machinery when not required
4. Use of ear plug by workforce
5. Presence of minimum 10 ft
high barrier around the well
site
Hourly during
drilling
operation
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
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Receptor Location Monitoring Mechanism Monitoring &
Reporting
Frequency
Drilling
wastes
At drilling site 1. Drill cuttings wash water: its
quantification, characteristics
(TSS, TDS, organic
compounds, heavy metals, oil
& grease), its treatment and
safe disposal
2. Cuttings are dried to
maximum extent in Hi-G
drier system and dried
cuttings are disposed in
separate waste pits
3. Drill cuttings: Categorization
for parameters given in EPA
disposal standards prior to
disposal, quantification and
storage
4. Spent drilling fluid: its
treatment and reuse
5. Unused drilling mud: its
categorisation, storage,
transportation and safe
disposal.
6. Maintenance of Drill cutting
pit, waste mud pit and waste
water pit.
Daily during
drilling phase
Solid waste
Generation
At Project
Location
Waste segregation and disposal as
per waste management plan.
Daily during
drilling phase
Wastewater
Generation
At Project Site 1. Waste water generation rate
2. Treatment of wastewater by
clari-flocculator and treated
water meeting the wastewater
discharge standard (SPCB)
3. Integrity and maintenance of
the septic tanks and soak pits
4. Maintenance of waste water
treatment Units
Daily during
drilling phase
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Receptor Location Monitoring Mechanism Monitoring &
Reporting
Frequency
Oil wastes At Drilling Site 1. Generation, collection,
storage facilities and safe
disposal
2. Facilities to prevent the
accidental oil spill
3. Separate storage facilities for
the fuel, lubricants and
chemicals and their inventory
Daily during
drilling phase
Oil Spills
At Drilling Site
1. Inventory of all oil
spills/leakages and quantity of
each spill
2. facilities according to oil spill
contingency plan
3. Availability of shovels, sands
and native soil at camp sites
and well site
4. Presence of oil drip pans in
potential oil leakages areas
Daily during
drilling phase
Soil Erosion
At Project
Location
Visual observations Daily during
routine
monitoring by
Contractor and
reported on a
weekly basis by
Project
Environment
Officer (PEO).
Socio-
Economics
At Project
Location
Local people recruited for all
manual labour and other job for
which local skill are available
During drilling
operation
Table 6.3: Recommended Environmental Monitoring Protocol - Post Drilling
Receptor Location Monitoring
Mechanism
Monitoring and
Reporting Frequency
Drilling waste
At project
Location
Quantification of Drill
cuttings, its
transportation and safe
disposal
At the end of the
drilling operation
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Receptor Location Monitoring
Mechanism
Monitoring and
Reporting Frequency
Land At Project
Location
Restoration and
rehabilitation through:
1. Wellhead and casing
string should be cut
off to minimum depth
of 3 m below ground
level
2. Demolition of
concrete structures
and disposal of debris
as per regulatory
requirements
3. Treatment and
disposal of waste
products, solids and
liquid in accordance
with regulatory
requirements
4. Removal of fencing
and gates
5. Backfilling and
closing of all on site
disposal pits as per
legal requirements
At the end of the
drilling operation
Surface Water
Quality (if
available during
monsoon)
At Project
Location within
radius of 1 km
pH, conductivity, TSS
and TDS, and BOD,
COD.
At the same location
where pre and during
drilling phase
monitoring was done.
Once a week for one
month after drilling is
complete.
Groundwater
Quality
Water sources
used for
construction
purposes and dug
wells within 1km
from wastewater
and mud ponds
Physico chemical
parameters, heavy
metals and toxic
organic compounds
At the same locations
where pre and during
drilling monitoring was
done. Monitoring twice
in pre and post
monsoon season for ten
years
Soil Erosion At drilling site
and along the
aligned water
Visual observations Monitored by
Contractor and reported
by PEO at the end of
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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Receptor Location Monitoring
Mechanism
Monitoring and
Reporting Frequency
courses the drilling operation
Compensatory
tree plantation
Tree plantation
locations
Survival rate of tree
saplings
Once in a year for ten
years.
The post operational monitoring programme will be under the supervision of the Sun
petro and the Monitoring shall be carried out by recognized laboratories/ institutions/by Block
operator.
6.2 Monitoring of Various Parameters
Monitoring Methods
The site is considered as core zone and the area lying within 10km radius from the mine site
is considered as buffer zone.
Air Quality Monitoring
Ambient air quality should be monitored both upwind & downwind directions along with
adequate meteorological measurement for proper interpretation of data of PM10, SO2, NOX,
PM2.5.,Benzene, Benzopyrene, CO, Arsenic, Pb, Nickel, Ozone and Ammonia The number of
monitoring stations, air pollutants and frequency of monitoring will be decided as per the
CPCB guidelines in 2009. Meteorological stations will be monitored for wind direction and
speed, rainfall, temperature & humidity and evaporation.
Water Quality Monitoring
Monitoring of surface run-off and ground infiltration in the study area will be done once in
every season except monsoon. Quality of groundwater and surface water samples will be
analyzed for all the parameters as per IS-10500 and IS-2296 respectively. Also, the area
itself has three WTPs and hence a routine regular monitoring of water samples of the
reservoir is done.
Noise Quality Monitoring
Noise level monitoring will be done at the work zone to assess the occupational noise
exposure levels. Noise levels will also be monitored at the noise generating sources like
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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mineral handling arrangements, vehicle movements and also nearby villages for studying the
impact due to higher noise levels for taking necessary control measures at the source.
Occupational Health & Safety
Health check-up for the workers will be conducted at regular intervals until the drilling
operation is over. The health camps status will be monitored and the information will be
furnished to the approving authority. Project proponent will also coordinate with general
public, regulatory authorities, local administration to appraise environmental performance of
the mine.
6.3 Reporting Schedule of Monitoring Data
The frequency of reporting of monitored data will be on six monthly basesto the State PCB
Gujaratand to Regional Office of MoEF&CC, New Delhi. Compliance report will be
submitted twice in a year for 6 months interval. The Environmental statement will be
prepared for the entire year of operations and will be regularly submitted to regulatory
authorities.
Table 6.4: Budget for Environmental Monitoring Program Parameter Sampling
Locations Cost per Sample, INR
Frequency Total cost for Six Monthly Compliance Report Submission, INR
Air 4 5000 2 per week except monsoon
720000
Water 4 7000 1 per season except Monsoon
56000
Soil 4 4000 1 per half yearly 16000
Noise 4 3000 1 per season except Monsoon
24000
Greenbelt 1 Once in a year 50000
Total 8,66,000
For Five Years, Total 43,30,000
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CHAPTER-7 : Additional Studies
7.1 Risk Assessment M/s Sun Petrochemicals Private Limited (SunPetro) Company is engaged in the business of
Exploration and Production of Crude Oil and Natural Gas. The company holds mining lease
for Baola Gas field in Gujarat for exploration and production under Production Sharing
Contracts (PSC) signed with the Government of India.
The Baola field was awarded to Interlink Petroleum Limited (IPL) under production sharing
contract (PSC) by Government of India for expeditious exploitation of hydrocarbon. Based
on the interpretation of 3D data, one appraisal well Baola#8 was drilled in 2010-11 by IPL.
PSC for Baola field was transferred to SunPetro on 10th
Jun, 2016 by Ministry of Petroleum
and Natural Gas (MoPNG), Government of India. Mining Lease for Baola Field was
transferred and re-granted to SunPetro from Interlink Petroleum Limited (IPL) on 13th
Feb,
2017 by State Government.
Exploration carried out in past by Oil & natural Gas Corporation Ltd (ONGC) has led to a
discovery of gas with heavy oil in the well Baola#1 drilled in year 1970-71. Subsequently,
five appraisal wells drilled by the ONGC, could not confirm the envisaged extent of the field.
Only one out of six appraisal wells (Baola#5) resulted in hydrocarbon bearing.
The Baola Field is located in Ahmedabad district of Gujarat; 36 km SW of Ahmedabad city
and 20 km SW of Nawagam Field of ONGC. The block is spread over an area of 4 sq. km. on
the western rising flank of Ahmedabad – Mehsana tectonic block of Cambay Basin. Nearest
village Salajada is located on outer periphery of the block with most part of the village
outside the block.
Currently 3 wells are already present in the Mining Lease area – B#1, B#5, and B#8; Baola #
8 well in the field is currently producing the crude oil and is in testing phase. SunPetro
intends to drill new wells in the field near the existing three wells. The estimated cost of the
proposed project is INR 32 million per well.
S. No. Parameter Description
1. Area Baola Field has a total Mining Lease of 4 Sq. KM
2. Location Baola Field is located in the Ahmedabad District of Gujarat,
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Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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3. Existing Capacity Baola Field has 3 wells currently. After new wells total
capacity of 200 bbls/day is envisaged.
4. Need of the Project
The Proposed new wells in the Baola Field would increase
the Crude Oil & Gas production of the region and create
new opportunity for the locals.
5. Power Supply &
Source
DG sets of about 1250 KVA x 2 nos. will be provided for
drilling whereas electricity from State electricity board will
be the source for Group Well Head Installation.
6. Site Connectivity
Baola Field is well connected by Roads; Nearest railway
station is Baola Station and is approx. 8 kms away.
Nearest airport is in Ahmedabad city and is approx. 50 kms
away.
7. Existing
Infrastructure
SunPetro has one GGS and one Group Well Head
Installation in the field
8. Alternative Site
No alternate site is considered as all operations are to be
carried out in the Baola Field area only. However, we have
some flexibility to shift wells locations to few meters
9. Raw material
required
Drilling related material like HSD, Steel (in the form of
casings) tubing and Chemicals like Baryte, Oil well cement
and Bentonite would be required
10. Land Form, Land use
and land ownership
Most of the land for the existing wells is Government land
and also on lease basis. The land associated with producing
wells is being acquired on Lease rental basis from the
farmers. The land for the new wells may be acquired on
lease basis.
11. Cost of the Project One well may cost about USD 0.5 million
12. Conclusion
SunPetro proposes to carry out drilling of 6 wells in future.
Besides drilling of wells, Construction of Group Well Head
Installation and facilities near to the new wells may also be
planned,
The monetization of Baola Field not only would result in
improved energy scenario for the country but will also
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 118
generate opportunities for the local people and would help
in the economic up-liftment of the region.
The company will adopt all the measures through its
Environment Management Plan and Disaster Management
Plans to prevent harm and damage to environment (if any)
due to production/drilling activities in the Baola Field.
All the Proposed facilities of drilling wells like fire fighting, electrical system, Pump house,
Pipeline etc. would comply with national, international standards and M.B. Lal committee
recommendations.
The facilities required for operation of the project, viz., with associated facilities have been
planned to be steel structure. Other facilities like RCC civil structure have been planned to
accommodate control panels, HT/LT panels, Batteries etc. All the safety factors like wind
load, seismic load, soil bearing capacity etc have been taken into account while designing the
civil structures.
This document is prepared by Mantec Consultants Pvt. Ltd. for Risk Assessment (RA) study
for Drilling of Exploratory & Development Wells (6 Nos.) in Baola Field and to identify the
key hazards and risks. By conducting this type of RA it should be emphasized that the focus
is on the major, worst-case, hazards and impacts from surrounding area of these units,
essentially in order to priorities the off-site risks and potential impacts to the public.
Project Description
The Project involves the monetization of Baola Field through Crude Oil and Gas production.
The various activities of the project are:
Drilling of new wells in future
Construction of Group Well Head Installation
Flow diagram displaying the steps involved from drilling of wells to putting the wells on
production is as below:
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Drilling Plan for Baola Field
Drilling and well Completion
In Baola field the Drilling TD is about 1000-1100 mtrs. The well construction will be done
with two Casing policies and for this drilling rig of 150 ton or 750 hp will be deployed.
Drilling rig package include Rig, capable to drill up to a depth of 2000 mtrs, carrier mounted
from drilling contractor. In addition, other services such as Mud services, logging, cementing,
site construction etc will be used.
Well Drilling Strategy
It is proposed to drill development wells for the two fields operated by SunPetro in same
campaign so as to save on Mob-demob charges. This will also help in optimising expenditure
on materials consumed. The surface hole will be spud with open cellar to drill up to 50 mtrs.
The main Drilling challenge is to avoid loss and mud channeling on surface. After drilling of
top 50 mtr, further drilling will be with control rate ROP. Surface hole will be drilled with
bentonite mud and the lower 8 ½” section will be drilled with KCL POLYMER mud. While
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 120
drilling shale formation, shale inhabitations chemicals will be used and to avoid differential
stuck of pipe, proper lubrication will be added in Mud system. Further mud improvement
through monitoring will be carried out so that it will not damage the reservoir.
Well Design and Well Completion (Production, injection, etc.)
The wells will be drilled as vertical wells designed for two casing policy, for the wells drilled
for true vertical depth of 1100 mtr. The well design consist of two casing
1. The surface casing - 9 5/8” BTC L-80, 43.5 ppf setting depth approx. 400-500 mtr and
2. The Production casing - 5 ½” L-80,17ppf, Setting depth 1100 m.
The planned Casing metallurgy is as follows:
A. 9 5/8” Surface casing : 43.5 ppf, L-80 grade.
7. Wall thickness : 11 mm
8. ID : 222.4 mm
9. Collapse : 26.3 Mpa.
10. Internal yield strength pressure : 43.5 Mpa
11. Pipe body yield strength : 447 (1000 daN)
12. Torque : Torque up to Diamond mark on Csg.
B. 5 ½” Production Casing 17 ppf, L-80 Grade
13. Wall thickness : 7.7 mm
14. ID : 124.3 mm
15. Collapse : 43.3 Mpa.
16. Internal yield strength pressure : 53.4 Mpa
17. Pipe body yield strength : 177 (1000 daN)
18. Torque : Torque upto Diamond mark on Csg
The completion string is planned of 2 7/8” EUE tubing. The Well heads consist the 11”x 5M,
FLG top, 9 5/8” bottom with 5 ½” slip on weld with 2” LP. Thread on side outlets for Surface
casing. Surface casing setting depth is planned at approx. 400-500 mts. The planned Tubing
head spool consists of 11”x5M- 7 1/16”x5M with 2 1/16” side outlet v/v.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 121
Cementing of 9 5/8” casing is planned as single stage cementing, with shoe track of about 20
mtr. Cementing of 5 ½” casing is also planned as single stage cementing, with shoe track of
about 20 mtr. Cement weight will be between 1.35-1.65 Sg. Disposal of drill cutting will
done as per standard Oil industry HSE policy.
The wells in Baola field are planned as vertical wells. The vertical stand-off for casing setting
is as per technical specifications. A typical well schematic is shown in figure below.
7.1.1 Consequence Analysis
Consequence analysis involves the application of the mathematical, analytical and computer
models (PHAST software) for calculation of the effects and damages subsequent to a
hydrocarbon/toxic release accident.
Process Hazard Analysis Software Tool (PHAST) Software is used to predict the physical
behavior of hazardous incidents. The model uses below mentioned techniques to assess the
consequences of identified scenarios:
Modeling of discharge rates when holes develop in process equipment/pipe work.
Modeling of the size & shape of the flammable gas clouds from releases in the
atmosphere.
Modeling of the flame and radiation field of the releases that are ignited and burn as
pool fire, jet fire, Overpressure (Blast Force) and flash fire.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 122
Modeling of the explosion fields of releases which are ignited away from the point of
release.
7.1.2 Hazards Associated with exploratory drilling
The details of major hazards that are associated with exploratory drilling are
A. Fire and Explosions
Hydrocarbon leak due to loss of containment;
Non process hydrocarbon leaks (diesel, fuel oil, etc);
Non-Process Fires;
Storage Fires; and
Control systems failure including electrical failure in control room.
B. Impact and Collisions
Road traffic accidents; and
Objects dropped near wellhead facilities.
C. Loss of Station-keeping/Loss of Stability
Structural failure; and
Equipment failure.
D. External Hazards
Failure due to extreme weather, strong vibrations, strong winds, dust storms, earthquakes and
sabotage. The effect of extreme environmental conditions, such as severe weather or
earthquake is considered as part of the structural failure considerations.
The detailed description of the frequency, event analysis and consequence analysis of each
hazard is discussed in following sections:
7.1.3 Blowouts during Drilling / Testing Operations
7.1.3.1 Causes of Drilling Blowouts
Well control can be lost because of:
Formation fluid entry into the well bore;
Loss of containment due to mal-operation (e.g. during wire lining); and
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 123
Wellhead damage (e.g. by fires, storms, dropped objects, etc).
7.1.3.2 Causes of Production Blowouts
Blowouts during production are commonly caused by well interventions such as workovers,
wire lining, snubbing, and coiled tubing operations, although the well equipment in normal
operation initiates some production blowouts.
7.1.3.3 Blowouts due to External Causes
Possible external causes of blowouts include:
Escalation from process fire
Structural collapse
Military or pirate attacks
These should not be included in the analysis of blowouts if they are separately modelled
under the other hazard categories. However, for simple studies that do not model such
escalations in full, it is appropriate to include them as blowouts.
7.1.3.4 Blowout Frequencies
Data Selection
Blowout frequency estimates are obtained from a combination of incident experience and
associated exposure in a given area over a given time period. Ideally, a blowout frequency
should be estimated from recent experience in the country's operations context and on the
type of installation for which the risks are to be predicted. In practice, there have been so few
blowouts that a large geographical area and a long time period are required to obtain
statistically reliable frequencies.
Severity of Events
The severity of the events included in the analysis has an influence on the resulting
frequency. It is desirable to distinguish between full blowouts and more minor well control
incidents, but the distinction is not always clear. Full blowouts are of the greatest concern, but
may be too infrequent to give reliable frequencies. Well control incidents are more frequent,
but are less well reported.
Measures of Exposure
The measure of exposure determines the units of the resulting frequency. Which measure of
exposure is appropriate depends on the requirements of the study. Blowout frequencies may
be expressed in various forms:
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 124
Blowout frequencies per installation year are useful for simple studies, where it is not
necessary to take the number and type of wells into account, or the level of drilling activity
on the platform. This measure is useful for drilling rigs, where drilling activities are in
progress for most of the time;
Blowout frequencies per well drilled are relevant to blowouts during drilling and
completion. This measure is useful for integrated installation where the amount of drilling
varies through the installation‟s life;
Blowout frequencies per well year are relevant for blowouts during normal production;
Blowout frequencies per well operation are relevant to blowouts during workover and
wire lining. This measure is useful when it is necessary to take into account the level of
workover and wire lining activity. Alternatively, the frequency may be included in the
production blowout frequency per well year, using an average rate of workovers or wire
lining per well year.
All these approaches are to be used where appropriate. The annual blowout frequency for the
installation is obtained by multiplying the blowout frequencies per operation or per well year
by the number of wells drilled, completed, in operation or being worked over each year. For a
drill rig, this is a constant at a given level of activity. For a production installation, the
blowout frequency is usually highest during the drilling years early in its life.
7.1.3.5 Risk Criteria
Individual risks are the key measure of risk acceptability for this type of study, where it is
proposed that:
Risks to the public can be considered to be broadly acceptable (or negligible) if below 10-6
per year (one in 1 million per year). Although risks of up to 10-4
per year (1 in 10,000 per
year) may be considered acceptable if shown to be As Low As Reasonably Practicable
(ALARP), since in India no any standard has been set, it is recommended that 10-5
per year
(1 in 100,000 per year) is adopted for this study as the maximum tolerable criterion.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Risks to workers can be considered to be broadly acceptable (or negligible) if below 10-5
per
year and where risks of below 10-3
per year (1 in 1000 per year) may be considered
acceptable if in ALARP.
7.1.3.6 Location specific individual risk (LSIR)
The Location specific individual risk (LSIR) is risk to a person who is standing at that point
365 days a year and 24 hours a day.
7.1.3.7 Individual risk to worker (ISIR)
The personnel in respective terminals are expected to work 8 hour shift as well as general
shift. The actual risk to a person i.e. “Individual Specific Individual Risk (ISIR)” would be
far less after accounting for the time fraction a person is expected to spend at a location.
ISIR Area = LSIR X (8/24) (8 hours shift) X (Time spent by and individual/8 hours)
ALARP summary & comparison of Individual risk with acceptability criteria.
The objective of this RA study is to assess the risk levels of the project with reference to the
defined risk acceptability criteria and recommend measures to reduce the risk level to As
Low As Reasonably Practicable (ALARP).
The comparison of maximum individual risk with the risk acceptability criteria is shown in
Figure below:
7.1.3.8 Societal risk
It is the risk experience in a given time period by the whole group of personnel exposed,
reflecting the severity of the hazard and the number of people in proximity to it. It is defined
as the relationship between the frequency and the number of people suffering a given level of
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 126
harm (normally taken to refer to risk of death) from the realization of the specified hazards. It
is expressed in the form of F-N curve.
7.1.3.8.1 Societal risk acceptability criteria
A formal risk criterion is used at all for societal risk; the criterion most commonly used is the
F-N curve. Like other forms of risk criterion, the F-N curve may be cast in the form of a
single criterion curve or of two criterion curves dividing the space in to three regions – where
the risk is unacceptable, where it is negligible and where it requires further assessment. The
latter approach corresponds to application to societal risk of the ALARP principle. Risk
criteria for the Netherlands have been considered for the present study. F-N curve of the
station is represented in Figure below-
Societal risk criteria are also proposed, although these should be used as guidance only. A
criterion of 10-4 per year is recommended for determining design accidental loads for on-
site buildings, i.e. buildings should be designed against the fire and explosion loads that
occur with a frequency of 1 in 10,000 people per years.
7.1.4 Top risk contributors (Group Risk)
The present major contributing scenarios to societal risk from station/terminal are within the
ALARP region.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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7.1.5 Conclusions and Recommendations
Although the results of this Risk analysis show that the risks to the public are within the
ALARP region, they will be sensitive to the specific design and/or modeling assumptions
used.
The major conclusions and recommendations based on the risk analysis of the identified
representative failure scenarios are summarized below:
The drilling points & borehole are to be covered as per the prevailing practice of safety
management system of Oil Industries.
It is necessary to provide extensive fire detection system as per OISD guidelines.
Operators should be well trained about the fire and gas detection system.
It is recommended to have necessary provision for emergency stop of critical equipments
from control room (during commissioning) in the event of major leak/flash fire.
The vehicles entering the station should be fitted with spark arrestors.
Routine checks to be done to ensure and prevent the presence of ignition sources in the
immediate vicinity of the flammable material (near boundaries).
Clearly defined escape routes shall be developed for each individual plots and section of
the project area taking into account the impairment of escape by hazardous releases and
sign boards be erected in places to guide personnel in case of an emergency.
Windsocks shall be considered at the site to ensure visibility from all directions. This will
assist people to escape in upwind or cross wind direction from flammable releases.
In order to further reduce the probability of failure of catastrophic rupture and
equipments, critical equipments shall be identified and inspection methodologies to be
finalized for continuous monitoring during operation and shutdown maintenance.
The active protection devices like fire water hydrant, water monitor and other protective
devices shall be tested at regular intervals.
There should be an SOP established for clarity of actions to be taken in case (during drilling
and production) of fire/leak emergency
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Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
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7.1.6 General Recommendations
1. Ensure that combustible flammable material is not placed near the Critical instrument at
the site. These could include oil filled cloth, wooden supports, oil buckets etc. these must
be put away and the areas kept permanently clean and free from any combustibles.
Secondary fires probability would be greatly reduced because of these simple but
effective measures.
2. Hydrocarbon detectors should be provided at every drilling point.
3. Proper lighting arrangements and CCTV should be provided at drilling points for new
facilities inside the drilling site.
7.2 Oil Spill Emergency Plan
Scenario: Oil spill:
An oil spill is defined as an undesired / unplanned release of oil into land or water.
Probable Cause:
Overflow from storage Tank due to operational mistake
Oil Overflow from slop tank due to torrential rain
Oil Tanker Toppling in the site
Oil leakage from Stuffing Box gland ( Artificial Lift Pump)
An initial assessment of the situation required to be carried out in liaison with the OSC/ ERT
coordinator. Assessment and control measures shall only be carried out after taking the
required precaution.
The assessment shall include the following:
Identification of possible ignition sources that could lead to fire.
Identification of the source of the oil spill & action to stop it
Approximate volume of the oil spill.
Isolating the incident area
Communication
OSC shall communicate to ERT Leader, Fire Station if required, Manager-HSE
ERT coordinator & ERT Members.
Personnel should be made aware that there is a Hazardous situation.
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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Possible dangers may include Fire & Land contamination etc.
Every precaution should be taken to avoid injury to personnel whilst making
area safe.
If it is safe and feasible, effort should be concentrated on means of isolation
of the source, basic containment of the oil spill and removal of ignition
sources.
Necessary control measures such as demarcation of No Smoking/ ignition
source area shall be enforced.
Resource required to lift the spill oil
Spread of Saw dust remove contaminated Oil
Flushing with Hot water/Cold water to remove soaked oil from soil.
Finally removed oil shall be collected from Oil Pit.
Stand down criteria
ERT Leader will end the emergency when:
The oil spill has been removed and the site is restored.
There is no immediate possibility of further oil spillage.
Table 7.1: Oil Spill Emergency Response Procedure PROCEDURE
Event: OIL SPILL
Probable Cause of Event & Point of Occurrence:
Oil spill from storage tank due to operational mistake, Oil spill from Artificial Lift Pump
Polish rod,
CONTROL MEASURE [TO PREVENT FURTHER ACCELEARATION OF
EVENT]
No Key Personnel Activities to be Performed
1 1
St Person Shout: HELP - - - HELP - - - HELP
2 OSC
[Shift I/C]
Shall rush the incident spot along with ERT Co-
coordinator.
Access the situation
Running Equipment shall be kept on safe
Operating Mode
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Action plan for the Emergency
Communication: Requirement for Fire Tender (if
required), ERT Leader, Mg.-HSE
Log keeping
3 ERT Coordinator
[Operator]
Action plan to be explained to ERT members..
Running Equipment to be secured to safe
Operating mode.
Power Cutoff if required.
Source of Combustible material to be cutoff.
Ignition Source to be cutoff to prevent occurrence
of Fire.
4
ERT Members
[Technician, Helper,
Security personnel, --]
Affect Oil spill area to be secure to prevent further
spread of Oil spill.
Collection of Oil manually & to be stored in
Barrel if possible.
Spread of Saw dust for soaking Oil & collection of
Oil soaked saw dust for further disposal.
Effected area to be cleared for safe movement for
Fire Tender for water spraying if required.
Splashing of Water or spraying of water gently to
remove Oil from affected area.
Effluent water to be allowed to Oil pit for
separation & collection of free Oil.
RECOVERY MEASURE [ TO START OPERATIONIN IN A SAFE MANNER AT THE
EARLIEST]
5
ERT LEADER & Mg. HSE Shall Visit the site & Preliminary Enquiry.
Assess the situation for Unit restart & clearance
to startup if it is Safe.
6 OSC Systematic Checkup before Unit Startup.
Clearance for Unit Startup.
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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7 ERT Coordinator& ERT
Members
Effected area to be clear for Safe Operation.
Unit Startup& Parameter Monitoring
RESOURCES AVAILABLE AT SITE
CO2 Cylinder: 02 Nos. for Electrical Fire only.
DCP Trolley: 02 NoS. for A,B,C type Fire
EXTERNAL SUPPORT REQUIRED [ If any]
FIRE Tender
7.3 Corporate Social Responsibility (CSR)
Corporate Social Responsibility (CSR) is a Strategic Business Management concept through
which a company integrates social & environmental concerns in their business operations and
can achieve a balance of economic, environmental & social imperatives. Furthermore, at the
same time attends to the expectations of shareholders & stakeholders. Through it the
company can make valuable contribution to poverty reduction. The CSR refers to
responsibility of a company to ensure positive impact on environment, consumers,
employees, communities, stakeholders and all other members of public sphere. In India, it is
comparatively a new but rising concept and the companies are going through the learning
curve. The CSR activities are increasingly being taken up by the project proponents not only
as fulfilling of mandatory provisions but also for formation and enhancement of brand image.
Besides all, CSR is seen more as a responsibility towards society rather than a business
philosophy. It is the need of the time for expansion of occupational welfare. Keeping in mind
these codes of belief, we have identified some activities which may propose to undertake for
the benefits of the people living in the study area. This will not only improve the socio-
economic status of the people but also enhance the reputation of the project proponent among
the community. The following activities are proposed to be taken up for the benefits of the
local community:
1) Providing employment opportunities.
2) Vocational training for skill development to the local youth.
3) Educational scholarships and study materials to the meritorious students
belonging to BPL.
4) Providing drinking water facilities to nearby schools.
5) Providing medical assistance/medicines to the local people.
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M a n t e c C o n s u l t a n t s P v t L i m i t e d
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7.3.1 Conclusion
The proposed project activities would contribute to the local economy by providing direct or
indirect employment opportunities, monies to local contractors, and recycled revenues
through the local economy. Additional revenues would be generated in the form of royalty
payments to mineral rights owners and taxes collected by the national and the state
governments. Indirect impacts could occur as a result of the new economic development
(e.g., new jobs at businesses that support the expanded workforce or that provide project
materials). Development of an oil or gas field also could potentially affect property values,
either positively from increased employment effects or negatively from proximity to the oil
or gas field and any associated or perceived adverse environmental effects (noise of
compressor stations, visual effects, air quality, etc.). The proposed project will meet the
immense demand of oil & gas products in the states and across the nation. Also, it will
augment the transportation of these products in friendly manner and cost effectively. Hence,
the opportunity for further industry development will increase towards the similar kind of
projects to support production of oil & gas products into the state and across the nation. It
will not only bring income to the states and nation‟s exchequer but also increase the supply of
the oil & gas products. With the implementation of the project, the occupational pattern of the
people in the area may change making more people engaged in industrial & business
activities due to which in coming time local people may get opportunity to enhance their
social & economic status.
Since, no human settlements are to be affected by the project and hence, no Rehabilitation &
Resettlement Plan is required in this project. Aside, the study area has great scope for further
development or improvement in education and health sectors in addition to provide better
education & health facilities for achieving finest quality or standard of life to the people
residing in the area. Based on the observation, the institutions for basic health facilities as
Primary Health Centre (PHC), Primary Health Sub-Centre, Maternity & Child Welfare
Centre, Community Health Centre, Dispensaries etc. can be increased & enhanced in context
to provide better health facilities in the area.
7.4 Public Hearing As per the Ministry of Environment, Forest& Climate Change, Government of India, New
Delhi vide its Notification No. S.O. 1533 (E) dated 14th
September, 2006 and its subsequent
amendment S.O. 3067 (E) dated 1st December, 2009. Public Hearing was fixed for M/s. Sun
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Petrochemicals Pvt. Ltd., for Proposed Exploration and Development of Drilling wells in the
existing PML area (PML 4 Sq.Km.) of Baola Field, at Grain Merchant Association Hall, Near
APMC Gate, Tal: Bavla, Dist: Ahmedabad, State:Gujarat, which is covered under Category-
A of Schedule 1(b).
The Public Hearing was scheduled on 11/07/2018 at 11:30hrs at Grain Mechant Association
Hall, Near APMC Gate, Tal: Bavla, Dist: Ahmedabad, Gujarat.
An advertisement was published in Gujarati in “DivyaBhaskr” Ahmedabad–botad edition and
in English “DNA” (Daily News & Analysis) Ahmedabad edition dated 10/06 /2018.
Shri R. V. Sarvaiya, GAS, Additional Collector & Additional District Magistrate,
Ahmedabad as a representative of District Collector and District Magistrate. Ahmedabad has
presided over the entire Public Hearing process.
Photographs of the Public Hearing are given from Plate 1 to Plate 4. Proceedings of the
public hearing are enclosed as Annexure-U.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 134
Plate-1 Public Hearing Photographs
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 135
Plate 2- Public Hearing Photographs
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 136
Plate 3: Public Hearing Photographs
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 137
Plate 4: Public Hearing Photographs
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 138
CHAPTER-8 : Project Benefits
With the additional wells at Baola Field, present crude oil and gas production is
expected to increase which would contribute in the development of the country and also the
local area.
The increased production would generate additional revenue for the State Government as
well as for the Central Government by way of payments on account of Royalty, CESS, and
taxation. This will also assist in the economic development of this less developed area
in Gujarat by means of generating direct and indirect employment opportunities for the
local people of the region.
8.1 Demand-Supply Gap
The proposed wells will definitely play part in reducing the gap between the
demandand supply of Crude Oil and Gas in the country, which will help in reducing the
import burden of the country. It will open the ventures for city gas in the remote areas.
8.2 Imports vs. Indigenous production
India‟s impetus is on to increase the indigenous production of oil and gas so as to meet the
growing demand of the country. We are presently importing around 75%-80% of our
crude oil requirement, which results in hefty import bills. Increase in domestic
production of gas will surely help in securing our energy demand and also, it would save on
the huge import bills.
8.3 Export Possibility
India is an energy deficit country, as such all indigenous oil and gas production is
consumed domestically. The proposed project would not have any export.
8.4 Domestic/ Export Markets
Crude Oil produced from the Baola Field will be sold to the Indian Oil Corporation or to
private parties. Natural Gas from the field will be sold in the open market in nearby
areas.
8.5 Employment Generation
Proposed activities shall assist in the economic development of this less developed areaof
Gujarat and will help in generating direct and indirect employment opportunities forthe local
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 139
people in the field of transport sector, oil field services, civil construction, skilled and
non-skilled employment etc.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 140
CHAPTER-9 : Environmental Management Plan
9.1 General
The environmental management plan consists of a set of mitigation, management, monitoring
and institutional measures to be taken during implementation and operation of the project, to
eliminate adverse environmental impacts or reduce them to acceptable levels. The present
environmental management plan addresses, the components of environment, which are likely
to be affected by the different operations in a dredging activity.
The Objectives of EMP are:
Overall conservation of environment.
Minimization of waste generation and pollution.
Judicious use of natural resources and water.
Safety, welfare and good health of the work force and populace.
Ensure effective operation of all control measures.
Vigilance against probable disasters and accidents.
Monitoring of cumulative and long term impacts.
Ensure effective operation of all control measures.
9.1.1 HSE Policy of Block Operator
The use of fossil fuel will depend not only on technical, economic, and political decisions but
increasingly on environmental considerations and its impact.
Block Operator will continue to conduct its activities in a professional and responsible
manner. The company, not only will comply with the laid down legislation requirements
but when found inadequate will promote creative measures and internal standards for the
protection of health, safety & the environment of the highest order for all who may
directly or indirectly be affected by any of the activities.
Personal safety and employee health is our greatest responsibility, followed by the
protection of the environment and company property.
The company will continue to take a proactive approach toward creating safe work
environments for all employees and will be accountable for promoting continued safety
education and training for all employees, assigning responsibility for all aspects of the
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 141
program, continuously reviewing the program to identify potential areas of improvement,
and ensuring a thorough evaluation of all incidents.
The company will continue to address the environmental and health impact of our
operations by reducing waste, emissions, and discharges and by using energy efficiently.
The company will maintain awareness of HSE matters, so as to be proactive in providing a
value-added service to the clients. This awareness is achieved through education,
communication and definition of the goals and standards appropriate to operation and
those undertaken on the client‟s behalf.
9.1.2 Organizational Structure and Responsibilities
This section provides an organizational structure for environmental management during
the proposed drilling project and defines the roles and responsibilities of the various role
players for the duration of the project.
9.1.2.1 Management Approach
The organizational roles and responsibilities are summarized below:
Block Operator: The overall responsibility for compliance with the environmental
management plan rests with the project proponents.
Contractors: The contractors (civil, drilling, and other) will carry out field activities as
part of the exploratory drilling project. The contractors will be subject to certain liabilities
under the environmental laws of the country, and under their contract with block operator.
Independent Monitors (IMs): Block Operator might utilize the option of hiring
independent monitors (IMs) to monitor the environmental performance of the contractors
and the environmental impact of project activities.
A certain degree of redundancy is inevitable across all management levels, but this is in
order to ensure that compliance with the environmental management plan is crosschecked.
Other essential features of the EMP are:
Block Operator will appoint a Field based HSE Coordinator to oversee HSE
compliance throughout the duration of the drilling program.
Block Operator will ensure that all contracts it executes with sub-contractors
comply with positive environmental sensibilities and requirements given in the
environmental management plan.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 142
Block Operator will cooperate with regulatory agencies (such as the State
Pollution Control Board) and other stakeholders who may want to send their
own teams in to monitor the activities during the drilling program.
9.1.3 Organizational Responsibilities
The salient features of the organisational responsibilities are described below:
9.1.3.1 Primary Responsibilities:
The primary responsibilities for the environmental performance of the project
proponents, the contractors, and the contractors for environmental monitoring will
be assumed by their respective highest-ranking officers in the country during the
project.
Block Operator‟s Chief - QHSE will be responsible for the company‟s compliance
with the EIA and EMP throughout the project.
The contractor will assume the main responsibility for all environmental matters
pertaining to their work.
Block Operator will coordinate with relevant government departments and other
stakeholders through its Environmental advisor.
9.1.3.2 Field Management and Quality Control
Conducting drilling activities in an environmentally sound manner will be the
responsibility of the drilling contractor/company.
Block Operator‟s Company Man (Drilling) will be responsible for the overall
environmental soundness of all field operations.
9.1.3.3 On-the-job Supervision and Monitoring
Block Operator has a Chief - QHSE, who is responsible for ensuring compliance
with the EMP during the drilling operation. He is also responsible for
communicating with and training the drilling crews in all aspects of the EMP.
Block Operator has an HSE Coordinator who will be responsible for all
environmental issues and for the implementation of the environmental management
plan in the field.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 143
If any monitoring teams from government departments or from NGOs visit the
field during the drilling operation, block operator‟s HSE Coordinator and the Chief
will be responsible for coordinating their visits.
9.2 Mitigation Plan
The mitigation plan is a key component of the EMP. It lists all the potential effects of the
project and their associated mitigation measures identified in the EIA. For each
Impact/Hazard, the following information is presented in the plan:
A comprehensive listing of mitigation measures
Actions required
The person(s) responsible for ensuring the full implementation of the action
A time parameter for the implementation of the action to ensure that the
objectives of mitigation are fully met.
The mitigation plan for the activities proposed for the exploratory drillings in the Baola
block is presented in Table 9.1 (prior to drilling phase) and Table 9.2 (during drilling
phase).
Table 9.1: Environnemental Management Plan - Mitigation Management Matrix
(Prior to Drilling Phase)
ROUTINE OPERATIONS
Hazard &
Effect(s)
Proposed Mitigation Required Actions Responsible Completion
Land
Acquisition
Obtain
necessary
approvals from
State Pollution
Control Board
for
construction &
operations.
Ensure that all
necessary protocols
are followed and
legal requirements
implemented.
Ensure that
appropriate legal
requirements have
been met with regard
to land occupancy,
land ownership or
usage rights, notice
Block Operator to
initiate interaction
with the concerned
officials in the
Pollution Control
Board, prior to release
of actual location to
identify necessary
permits and the
approval mechanism.
Apply for approval
for Land acquisition
with proper maps and
prescribed fees
Chief-
QHSE
- Do -
Pre-
deployment of
topographic
survey team.
After site
survey, prior
to
construction.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 144
and compensation,
etc.
Establish and clearly
document all land
agreements with
owners, users and
state authorities &
mark out site
boundaries.
Acquiring necessary
approvals from State
Pollution control
Board in a timely
manner
Preliminary site
survey to be carried
out by block
operator‟s civil works
consultants to mark
the road & site
requirement on
ground
Block Operator‟s
Drilling & Permit
team to meet the local
Pollution Control
authorities to apprise
them of the plan and
to identify and apply
for necessary
permissions prior to
construction phase
and prior to drilling
phase.
- Do -
- Do -
- Do -
Common
application
covering
“Consent to
establish” &
“Consent to
Operate“
Soil Erosion Minimize the extent
of site clearance
area, by choosing
best layout with
respect to existing
topography.
Minimize removal of
trees at site
Collect topsoil
during road
development/
construction, site
preparation, etc. and
stockpile the same at
edge of site to be
used to the extent
possible for site
restoration later.
Detailed contour
maps of the site to be
prepared with big
trees marked on it to
work out the best
layout to minimize
cut & fill & avoid
cutting of trees.
To see that
arrangement is in
place for collection.
Plan to minimize tree
cutting prior to site
construction and
ensure
implementation on
ground during site
construction phase
Asst.
Manager
Civil
Contractor
Asst.
Manager
Prior to site
preparation and
other
construction
activities-
- Do -
To be
continued till
demobilization.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 145
Table 9.2: Environmental Management Plan - Mitigation Management
Matrix (during Drilling Phase)
ROUTINE OPERATIONS
Hazard &
Effect(s)
Proposed Mitigation Required Actions Responsibl
e
Completion
Waste and
Effluent
Management
Poor planning and
execution might
pose a threat to
environment.
Contamination of
rain/storm water
run off with rig
wash water &
waste mud
Block Operator to
identify different
type of waste
anticipated during
operations, work out
estimated quantities,
lay down procedures
for collection,
handling, treatment
and disposal of each
type of waste.
Waste Management
Plan to be
implemented during
operations.
Detailed drainage
design will be
developed as a part
of the site design. It
will be ensured that
mud and associated
drainage system is
isolated from the
rain/storm water
drainage system.
Finalizing
Waste
Management
Plan (draft plan
given in EMP
report )
Waste
management plan
to be
implemented
during drilling
and be made
available for
inspection at site
to all regulatory
bodies.
Block Operator
to work with
Civil works
consultants
/contractors to
develop detailed
drainage system
addressing
concerns outlined
here.
Chief
QHSE in
association
with
Drilling
Team
Chief –
QHSE/Drill
ing
Manager
Drilling
Team
Drilling
Prior to
drilling
Implementati
on - During
all
operations at
site and
during
demobilizati
on
Site Design
phase
- Do -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 146
Pits must have
adequate capacity to
prevent flooding
during high rains
(maintain free board)
and should be fully
bounded.
Block Operator
to work out
required pit
volumes based on
maximum case
scenario
including
rainwater.
Team
Wastewater &
cuttings may
contain trace
amounts of drill
fluid and residual
chemicals.
Management of
Produced Water
All wastewater,
which will be
generated from
washings & spent
mud will be
contained in HDPE
lined (1 mm thick)
pits. The wastewater
will be treated
through flocculation
and dilution to
achieve SPCB
compliance for
discharged into a
nearby
nullah/stream.
Cuttings will be
dried to maximum
extent possible using
suitable equipment
and will be contained
in separate pits.
The water generated
Site design will
include
adequately sized
pits to contain
wastewater &
also treated water
prior to
discharge. Block
Operator will hire
a flocculation
unit either from a
local contractor
or an
international
service company.
Block Operator
will hire Hi –G
drier system to
treat the cuttings
coming from the
shakers to
achieve fairly dry
cuttings.
This water will be
Drilling
Team
Drilling
Team
Drilling
Site Design /
Contractor
procurement.
Planning &
Procurement
phase prior
to drilling
Contractor
Procurement
/
drilling
operations.
Prior to
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 147
Fuels, Lubricants
and Chemicals
Management pose
threat of major,
moderate & minor
spills
during drilling
operation is likely to
have very high
turbidity and salt
contents.
Prepare a
comprehensive Oil
Spill Contingency
Plan (OSCP) to
handle all major,
moderate & minor
spills.
Keeping all fuels,
lubricants and
chemicals in well-
designed storage
facility with regular
inventory checking.
Ensure that OSCP is
implemented during
operations.
treated by
coagulation &
flocculation and
the treated water
after conforming
to MOEF
standards will be
discharged to
nearby nullah.
Finalizing the
Oil Spill
Contingency Plan
(OSCP)
Checklist of all
drums and
containers
located within
footprint of the
storage area
Live risk
assessment
trainings and
awareness raising
among all
workers
associated with
mock exercises.
Team and
Chief –
QHSE
Chief -
QHSE in
association
with the
Drilling
Team
Rig‟s
maintenanc
e staff
Chief -
QHSE and
Environme
ntal
Advisor
commencem
ent of
drilling
operations
Through out
the
operations.
Pre-Drilling
Inductions
and during
the
operations
Contamination by
way of
oil/lubricant spills
and leaching
Used and unused
chemicals will be
stored in a lined &
bunded area.
The lined &
bunded area for
the diesel tank
will have extra
space to contain
used and un used
lubricants in
Drilling
Team.
Site design
phase
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 148
Executing delivery
of fuel to drilling site
under strict
supervision and
carrying out
refueling operations
in an area with
impervious flooring
and surface drainage
with oil interceptor.
Use of suitable
delivery trucks
Impervious liners in
place for fuel,
lubricants storage
area. Fuel/lubricant
containment &
generator area to
have drains with oil
entrapment
provision.
Effective bunds
capable of containing
110% of the volume
of the largest
container within and
enclosing all
potentially
contaminating
materials. To be used
drums.
Keeping an
inventory of all
fueling and
refueling
operations.
Check all
delivery trucks
for suitability &
ensure that they
meet safety
requirements
Impervious liners
to be installed in
the fuel &
lubricant storage
area.
Fuel/lubricant
storage area &
generator area to
have drains with
oil entrapment
mechanism.
Site design to
incorporate bund
requirement for
the fuel/lubricant
storage area.
Constructio
n contractor
during
constructio
n phase &
Rig‟s
maintenanc
e staff
during
drilling
phase.
HSE
coordinator
Drilling
Team
- Do -.
Site design
& through
out the
operations.
- Do -
Site design
phase.
- Do -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 149
for fuel/lubricants
storage area.
Major Spills:
Spills which are
more than 200
liters and will
require initiation
of Emergency
Response
Procedures.
Non-contaminated
and contaminated
runoff will be kept
separate. Non-
contaminated runoff
will be routed to off-
site area. Potentially
contaminated runoff
will be treated.
Oil drip pans will be
used wherever there
is significant
potential for leakage.
All spills/leaks to be
contained reported
and cleaned up
immediately.
Minor Spills: Minor
spills/leakages
defined as leaks from
vehicles, machinery,
equipment or storage
containers such that
the area and depth of
soil contaminated is
less than 1 sq ft and
3 inches respectively
Moderate Spills:
These are defined as
spills of volume less
than or equal to 200
liters.
Ensure separate
runoff routes
during site
design.
Drip pans will be
used.
Oil Spill
Contingency Plan
to be in place and
implemented.
Soil
contaminated will
be scraped and
proper disposal.
Such spills will
be contained
and controlled
using shovels,
sands and native
soil. These
equipment and
- Do -
HSE
Coordinator
HSE
Coordinator
HSE
Coordinator
HSE
Coordinator
- Do -
Throughout
the drilling
operations.
- Do -
- Do -
Through out
the drilling
Operations
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 150
materials will be
made available
at camp sites
and well site
during the
operation. The
contaminated
soil will be
excavated and
stored in a
bunded area
lined with an
impermeable
base. The
contaminated
soil will be
disposed off as
per norms.
These spills will
be handled and
controlled with
special care and
will require
special treatment
such as
bioremediation.
Noise and
Vibration
Checklist of all
machineries with
record of date of
procurement,
installation and age.
Regular maintenance
of all equipments.
Implement good
working practices to
Inventory of all
machineries to be
prepared and
submitted to
block operator
for review.
Maintenance Log
Book to be
prepared and
submitted to
block operator
for review.
No machinery
Rig
Contractor
Rig
Contractor
During
drilling
operations
Prior to and
during
drilling
operations
During
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 151
minimize noise.
Wearing of ear
protector when
appropriate.
running when not
required.
Block Operator
to distribute noise
protection
equipment and
ensure utilization
by the work
force.
- Do -
HSE
Coordinator
Drilling
operations
- Do -
Air Emissions Operate all
equipment within
specified design
parameters.
Store all dry, dusty
material (chemicals,
etc.) in sealed
containers.
Minimize duration of
testing by careful
planning.
Minimize emissions
during well testing
(flaring).
Minimize dust
Ensure proper
Equipment
maintenance.
Ensure absence
of stockpiles or
open containers
of dusty
materials.
Options for
MDT, Open Hole
DST to be
explored for
shorter test
include in the
plan if found
suitable
Effective
separation of oil
& gas to be
achieved and the
separated oil will
be trucked to
IOC/OIL and
only dry clean
gas to be flared.
Watering of
Rig
Mechanic
Rig‟s
maintenanc
e staff
Drilling
Team
- Do -
HSE
During
Drilling
operations.
- Do -
Planning
phase
- Do -
During
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 152
generated from truck
movement
roads if required. Coordinator Drilling
operations.
Solid Wastes
Wastes will
include organic
wastes, scrap
metal, waste oil
& surplus
chemicals, sacks,
broken wooden
pallets, medical
wastes etc.
Ensure proper
documentation and
manifestation of all
wastes generated.
Litter and debris not
to be discarded at
site and to be
segregated at a
segregation pit on
the well site
No-toxic
biodegradable waste
to be buried during
operations and
decommissioning,
ensuring that local
water resources are
not contaminated in
any way.
Pre-operation
inspections to
ensure waste
disposal facilities
are in place.
A segregation pit
to have waste
types segregated
into separate
drums at the well
site.
Block Operator
to include in
tender
requirements
wherever
possible.
HSE
Coordinator
HSE
Coordinator
Drilling
Team &
HSE
Coordinator
.
Prior to
drilling
operations
During
drilling
Site design
& drilling
operations
Non-routine
events and
accidental
releases. (Well
kicks, blow out)
Bulk supply of
materials to
bereferred for
minimization of
packaging wastes.
Unused materials to
be returned to
Block Operator
to arrange for
proper disposal
and waste
recycling
contractors
Drilling
team.
Contractor
procurement
phase.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 153
supplier.
Material such as
scrap metal, waste
oil & surplus
chemicals will be
disposed of in a
controlled manner
through authorized
waste contractors.
Draw up Oil Spill
Contingency Plan
(OSCP) and
Emergency Response
Plan (ERP), Well
Control Plan & keep
it updated.
Maintain state of
readiness for quick
response including
plan awareness,
training and regular
exercises.
Risk of loss of well
control to be
minimized through
i) Proper well
design, which will
ensure that the
hydrostatic weight of
mud will overcome
formation pressure.
ii) Proper drilling
program design to
ensure selection of
Block Operator
to monitor strict
compliance with
the provisions of
OSCP and ERP
& Well Control
Plan.
Records of
interaction
between the
management and
the work force.
Records of
training and
drills.
Ensure all
available offset
data is examined
for proper design
parameters.
Same as above
Same as above
Well monitoring
equipment to detect
influx from reservoir.
Drilling
team/HSE
coordinator
Company
man and
HSE
Coordinator
- Do -
Drilling
Engineer
- Do -
Drilling
Team
Planning
phase &
implementati
on during
drilling
Throughout
drilling
operations
- Do -
Prior to
Drilling
- Do -
- Do -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 154
properly rated BOP
equipment.
iii) Ensure that the
block operator‟s
supervision team &
Rig contractor‟s
relevant operating
personnel are trained
to handle well
control situations
and hold relevant
well control training
certificates.
iv) Ensure advanced
detection system is
in place and BOP
equipment is well
maintained.
Spill Response
Spill kits will be on
the drill site to
handle spills
comprising
adsorbents;
approved
containers for
storage and
transport of spill
wastes, disposable
bags,
gloves/goggles,
etc. promptly to
prevent breeding of
mosquitoes.
Pressure detection
service provided by
Mud-logging
contractor.
Blowout
preventors tested
on installation
and routinely.
While at the drilling
location, any spill
will be reported
promptly
Drilling
Team/Drilli
ng
Contractor
Drilling
Contractor/
HSE
Coordinator
- Do -
Prior to
drilling/durin
g operations.
During
drilling
operations
- Do -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 155
Socio-Economic
Impacts
Ensure no water
(surface or ground)
contamination occurs
from drilling
operations
Dust emissions on
access road to be
minimized.
All manual labor and
other jobs for which
local skills are
available are
recruited from local
people.
Undertake social
welfare projects for
the local
communities through
well thought out
CSR strategy.
Implement waste
management plan
and undertake
water quality
monitoring
before, during
and after the
operations.
Regular
monitoring of the
access road and
deployment of
water tankers to
minimize dust.
Block Operator
to keep a record
of all jobs and
provide monthly
feedback on jobs
provided to locals
and others with
clear reporting on
each job profile.
Develop a CSR
strategy for the
area and
implement one
social welfare
project during
each drilling
well
Chief -
QHSE/
HSE
Coordinator
HSE
Coordinator
Chief -
QHSE
General
Manager
Drilling &
Chief -
QHSE
Planning and
during the
operations
During
drilling
Planning and
during
drilling
Planning
phase and
during
drilling
operations
9.3 Waste Management Plan
9.3.1 Types of Waste
i) Bio-degradable Waste: Food waste, cloths
ii) Non-Hazardous Waste: Plastics, rubber, hoses
iii) Hazardous Waste: Oil soaked cotton waste, burnt oil, oil soaked filters, effluents
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 156
iv) Electrical & IT Waste: Electrical bulbs, personal computers
v) Battery Waste: used Batteries
9.3.2 Sources of Waste
i) Bio-degradable:
a) Kitchen waste
b) Packaging waste
ii) Non-Hazardous Waste:
a) Packaging plastic material
b) Tyres
c) Rubber hoses
iii) Hazardous Waste:
a) Maintenance of Engine
b) Produced water effluent
iv) Electrical & IT Waste:
a) Old non-working computers
b) Fused bulbs and other non-working electrical equipment
v) Battery Waste:
a) Waste dead batteries
Table 9.3 Quantity of Waste to be generated per year Description Sources Quantity (capacity)
Bio-degradable Waste - Food waste,
- Municipal solid waste
50 kgs/day
Non-Hazardous Waste Packaging Material –
Plastics, Rubber Hoses,
Tyres etc.
50 Kgs/day
Hazardous Waste - Oil Soaked cotton waste
- Oil soaked filters
- Burnt oil
- Effluents
Solid: 30 Kgs/Year
Liquid: 100 lts/Year
Electrical & IT Waste - Electrical Power equipment
including transformers,
capacitors etc., fused bulbs
and tubes, computers
30 Kgs/Year
Battery Waste Batteries operating on Site 4-5 Nos/Year
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 157
9.3.3 Collection of the Waste
i) Biodegradable waste: Food waste shall be collected in to the bins and stored in the
designated place for short time and then directly put in to the pit.
ii) Non-Hazardous Waste:
a) Packaging Plastics shall be compacted and should keep dry and transferred to the
designated – marked container
b) Rubber hoses and Tyres shall be collected and placed at designated place
iii) Hazardous Waste:
a) Cotton pieces soaked in the oil are collected from all parts of site and to be kept
separately in the labelled bins
b) Used contaminated oil is collected in the separate tank and stored in the metal bins
iv) Battery Waste:Used Batteries shall be collected from the site and kept at designated
place
v) Electrical and IT Waste:All the electrical waste is collected from the site and kept at
designated place
9.3.4 Segregation and Storage
i. Plastics: Compacted and should remain dry, transfer to the designated – marked
waste container
ii. Food Waste: collected in to the bins and stored in the designated place for a short
period and then directly disposed to the land
iii. Hazardous Waste: These wastes should be separately labelled and packed
accordingly
iv. Incinerator Ashes:Stored in the metal bin separately
v. Used Contaminated Oil:Separate and stored in metal bins
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 158
Figure 9.1: Flow Chart for Waste Management
9.3.5 Waste Disposal
a. Bio-degradable Waste:
i. Waste Food and other similar waste shall be buried in to the pit
b. Non-Hazardous Waste:
i. Collect & transfer to marked Bin for recycling
ii. Compact & dry and transfer to designated marked Bin
iii. Incineration, in case of tyres and rubber hoses
c. Hazardous Waste:
i. Incineration, in case of Cotton pieces and filters soaked in oil
ii. Left out burnt oil from engines shall be collected and separated and
stored in Metal bin. Later the collected oil is mixed with the crude oil
produced at site.
d. Electrical & IT Waste:Shall be collected separately
e. Used dead Batteries: Shall be collected separately and marked specifically
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 159
9.3.6 Record Keeping
Entries in the Waste Record Book shall be made on each of the following occasions:
I. When Waste is dumped in to the land;
II. Date and time of discharge shall be noted
III. Categories of Waste discharged
IV. Estimated amount discharged for each category in cubic meters
V. When Waste is incinerated; Date and time of start and stop of incineration
VI. Categories of Waste incinerated
VII. Estimated amount incinerated in cubic meters
Table 9.4: Waste Management Plan
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Domestic
Waste
Sewage
(Black
Water)
It is expected that less than
0.5 m3 /day of domestic
wastewater (sewage and
sullage) will be generated
from each exploratory
drilling site. The treatment
proposed for the domestic
water includes allowing
domestic wastewater to
pass into a septic tank to be
provided at a drilling site.
The septic tank will be
constructed as per the
Bureau of Indian Standard
IS: 2470 (Part-1): 1985.
All Sewage to be
channelised into septic
tanks and soak pits.
HSE
coordinator
Dimensions of
pits, Integrity &
maintenance of
the pits, Level of
sewage in the
Pits
Chief -
QHSE
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 160
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Wastewat
er from
Kitchen
and
Laundry
(Gray
Water)
The disposal of the
overflow from the septic
tank will be done into a
soak pit provided at the
drilling site. The secondary
treatment (soak pit) can be
constructed as per the
Bureau of Indian Standard
IS: 2470 (Part-2): 1985.
All gray water to be
channelised into soak pits.
Excess waste water will be
sprinkled on the project
access road
HSE
coordinator
Dimensions of
pits, Integrity &
maintenance of
the pits, Level of
gray water in the
Pits. Check
availability of
grease collection
pit and frequent
collection of
grease, regular
checking of
wastewater level
in the pit.
HSE
Coordinator /
Chief -
QHSE
Food
Waste
To be properly segregated
(no plastics, metal, glass in
it) and brought to the
segregation pit. Dig two
small humus pits (each of
2m x 2m x 1.5 m) within
the drilling site area away
from common use by rig
crewmembers. The humus
pits are to be covered with
soil on daily basis to avoid
any odour nuisance due to
putrification and check any
contact with the flies or
insects.
Drilling
Contractor‟s
Environment
Officer
Construction of
pits, daily
disposal of
organic waste
and covering it
with soil
HSE
Coordinator
Combusti
ble Waste
(Paper.
Rags,
Packing
material)
To be properly segregated
(no plastics, metal, glass in
it) and brought to the
segregation pit. Sent to
recycling contractor.
Drilling
Contractor‟s
Environment
Officer
Ensure daily
bringing of the
waste to the pit.
Periodic sending
of waste to
recycling
contractor
HSE
Coordinator
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 161
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Hazardous
Waste
Medical
waste
(Waste
generated
from
clinic)
To ensure the availability
of specified boxes, use of
syringe cutters. Waste to be
properly separated and
stored temporarily at site
separately from other
wastes. Medical waste to
be transported to the
hospital at Kutch.
Medical
Doctor
Segregation of
waste
Transportation of
waste to
incinerator at
Kutch
HSE
Coordinator
Recyclable
Waste
Tin packs,
plastic and
glass
bottles and
other
metallic
materials
To be properly segregated
and temporary storage at
segregation pit at well site.
Deliver to approved
recycling contractor
Drilling
Contractor
Segregation and
storing of waste
at the site.
Sending of
waste recycling
contractor
HSE
Coordinator
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 162
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Drilling
Wastes
Drill
Cuttings
To be stored in 1mm
HDPE lined pits on the
well site.
At the close of operations,
if leachate analysis
performed on properly
washed and reasonably
dried drill cuttings show
that it is non-hazardous in
nature, then it can be
disposed of as inert
material either into a
cuttings pit onsite or offsite
or taken for beneficial use
in construction of roads or
spreading on land in the
local area or land filling.
If found hazardous,
disposal can be done onsite
or offsite as per the
approval of the State
Pollution Control Board or
to dispose it in some
existing secured landfill
operating in the region.
HSE
Coordinator
Check integrity
of the HDPE
lined pit. Verify
that volume of
pit is adequate
for storage of
cuttings from the
drilling site.
Leachate
analysis to be
done once a
month from a
recognized Lab.
Chief -
QHSE
Un-Used
Drilling
Mud
To be stored in 1mm
HDPE lined pit on site.
After the operations it
should be transported to
another drilling site in the
block.
HSE
Coordinator /
Drilling
Engineer
Check integrity
of the HDPE
lined pit.
Chief -
QHSE/
Drilling
Manager
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 163
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Drilling &
Wash
Wastewat
er
After flocculation, the
treated wastewater is stored
in a holding/buffer pit
(1mm HDPE lined) and
then disposed in a natural
drain if conforms to the
stipulated standards.
Otherwise repeat treatment
required for the non-
complying parameters or
ensure dilution in case of
marginal exceed of
standards.
HSE
Coordinator
Check integrity
of the HDPE
lined pit.
Volume (cum) of
wash wastewater
generated.
Testing for
stipulated
standards from
recognized Labs
before discharge
into natural
drains.
Chief -
QHSE
Chemical
Sludge
(generated
as a result
of
wastewate
r
treatment)
The treatment of the sludge
so generated can be for pH
correction, if any, followed
by dewatering either in
centrifuge and or solar
evaporation. The treatment
is to be ensured in a pit
properly lined with
impervious HDPE liner of
1.0 mm.
Disposal is dependent on
establishing non-hazardous
or hazardous nature after
the end of operations.
HSE
Coordinator
Check integrity
of the HDPE
lined pit.
Volume (cum) of
the sludge
generated.
Testing for
stipulated
standards from
recognized Labs
before deciding
final disposal.
- Do -
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 164
Category Waste
Type
Proposed Action Who is
Responsible
for action?
What needs to
be Reported?
Monitoring
Oily Waste Used Oil Oil changing activity is
allowed only at the rig site.
Oil to be collected in
designated containers at the
Rig site. Ensure that the
used oil drums are safely
transported to the approved
recycling contractor at to
the certified workshop.
HSE
Coordinator
Collection and
storage of oil.
Used oil drums
safely
transported and
sent to approved
recycling
contractor
- Do -
For the proposed drilling, it is expected that the drill cuttings will be free from oil and may
not be rendered as hazardous, provided it is out of the purview of concentration criteria laid
down under the Rules. The sludge from the proposed drilling operations may be rendered as
free from oil by providing suitable pre-treatment measures. However, as per the Rules, any
chemical sludge generated from wastewater treatment is considered as hazardous. Therefore,
the chemical sludge from the wastewater treatment at the proposed exploratory drilling can
be rendered as hazardous. The drilling mud and other drilling wastes also considered as
hazardous. However, based on sampling and analysis carried out through a recognized
laboratory after the end of the drilling phase, if it is proved that the drilling mud and other
drilling wastes do not contain any of the constituents mentioned in HWM rules to the extent
of concentration limits specified therein, the wastes may not be treated as hazardous. Block
Operator would require prior authorization from the State Pollution Control Board for
treatment, storage, transportation and disposal of any hazardous waste generated at site
during drilling operations.
Table 9.5: Onshore Discharge Standards for Liquid Effluent from Oil Drilling
S. No. Parameter Onshore discharge standard
(not to exceed)
1 pH value 5.5 to 9.0
2 Temperature, ºC 40.0
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 165
3 Suspended Solids, mg/l 100.0
4 Zinc, mg/l 2.0
5 BOD at 27ºC for 3 days,
mg/l
30.0
6 COD, mg/l 100.0
7 Chlorides, mg/l 600.0
8 Sulphates, mg/l 1000.0
9 Total Dissolved Solids,
mg/l
2100.0
10 Sodium, mg/l 60.0
11 Oil and Grease, mg/l 10.0
12 Phenolics, mg/l 1.2
13 Cyanides, mg/l 0.2
14 Fluorides, mg/l 1.5
15 Sulphides, mg/l 2.0
16 Chromium (Hexavalent),
mg/l
0.1
17 Chromium (Total), mg/l 1.0
18 Copper, mg/l 0.2
19 Lead, mg/l 0.1
20 Mercury, mg/l 0.01
21 Nickel, mg/l 3.0
The proposed drilling operations require to discharge treated wastewater only after achieving
above standards and or as specifically imposed by the State Pollution Control Board in its
permit to operate for drilling of proposed exploratory well.
9.4 Restoration and Rehabilitation
9.4.1 Well Abandonment
After well testing and evaluation, a decision on whether to abandon or develop the well will
be taken. If no indications of a commercial quantity of oil are encountered, either before or
after testing, the well will be declared dry, accordingly plugged and abandoned, and the site
restored in line with local regulations and good industry practice. As a minimum, the
following steps will be undertaken to restore and rehabilitate the area:
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 166
The well head and all casing string will be cut off to a minimum depth of 3 m (10 ft)
below ground level.
All concrete structures will be broken up, and the debris disposed off as per the
regulatory requirements.
All other waste products, solid and liquid, will be disposed of in accordance with the
requirements of the EIA and will be treated to render them harmless.
All fencing and access gates will be removed.
All pits whose contents would show regulatory compliance for on-site disposal, at the
time of site closure, will be backfilled and closed out as per the legal requirements.
Waste products, solid and liquid, will be disposed of in accordance with the waste
management plan.
9.4.2 Well Suspension
After well testing and evaluation, if it is decided that the oil field is to be further
appraised, the well site and the access road will be maintained and a separate EIA
conducted for organizing the appraisal and possible development of the oil field. Further
development of the well will depend on the outcome of the EIA and the approval of the
concerned government agencies. The site will not be restored to its original condition
until a decision is taken on the environmental assessment of the field development. Until
then, the fencing will be left intact and the site sealed, although a few security men will
be posted at the site for its protection. The road will be maintained but barriers installed at
suitable locations will control access to it. Block Operator will provide a yearly
environmental monitoring report for this period to the regulatory bodies for their
information. The report will consist of records of any activity, environmental issues, and
the activities planned concerning the well site.
9.5 Greenbelt Development
As per the MoEF&CC, 33% of the project area must be developed for greenbelt purpose.
Most of the activities are sub surface in nature and will not have any impact on the
surface surrounding area. However, adequate green belt will be developed nearby the
proposed well sites and GWHI area.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 167
9.6 Safety during dredging operation
As soon as the drilling operation starts, the area must be confined with red signals/ flags and
sign boards. Public must be informed through announcement etc. DGMS has given
necessary guidelines for the safety and surveillance against these occupational hazards wise
prevention measures.Initial & periodical examination will be conducted. FORM-O is
prescribed as Medical examination for every employee as per Rules- 1955.Details of tests are
given in the form provided that in case any dust/emission related diseases need to be
conducted more frequently as the examination authority deems necessary
Normal sanitary facilities will be provided in the nearby area. The management will carry out
periodic health check up of workers.
Occupational hazards involved are related to dust pollution, noise pollution,and injuries from
moving machineries & equipment and fall in to the reservoir. All necessary first aid and
medical facilities will be provided to the workers. The site will be well equipped with proper
fire protection and firefighting equipment. All operators and mechanics will be trained to
handle fire-fighting equipments. Further all the necessary protective equipments such as
helmets, safety goggles, earplugs, earmuffs, etc. will be provided to persons working at site
as per OHSAS.
9.6.1 Disaster Management Plan
The Disaster Management Plan (DMP) is a guide, giving general considerations, directions,
and procedures for handling emergencies likely to arise from planned operations.
Structure
The Disaster Management Plan (DMP) is supposed to be a dynamic, changing, document
focusing on continual improvement of emergency response planning and arrangements. A
structure working on a Plan, Do, Check & Review (PDCR) cycle has been therefore
suggested. Another advantage of doing this is to have a system that is in synchronicity with
commonly used SHE systems such as ISO 14001 and OHSAS 18001.
Policy
The Safety Health and Environmental (SHE) policy should be existing & accessible to all at
site and to other stakeholders. The policy should be framed considering legislative
compliance, stakeholder involvement, continual improvement, and management by
objectives.
Planning
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 168
Identification & Prevention of Possible Emergencies
Possible emergency situations can broadly be classified into drowning, vehicle collision, and
inundation. Additional emergencies can be developed based on audit or other procedures
prior to commencement of operations.
Emergency Prevention
Some of the ways of preventing emergencies are as follows:
Preparation of a Preventive Maintenance Schedule Programme and also covering
maintenance schedules for all critical equipments and instruments as per
recommendations of the manufacturer‟s user manuals.
Importantly, it is of great importance to collect and analyze information pertaining to
minor incidents and accidents at the site, as well as for recording near-misses or
emergencies that were averted. This information gives an indication of how likely or
unlikely it is for the site to face actual emergency and what shall be further action to
prevent them from occurring.
Establishment of an ongoing training and evaluation programme, incorporating the
development of capabilities amongst employees about potential emergencies and
ways and means of identifying and averting the same. Most emergencies do not occur
without some incidence or an abnormal situation. So there is always sometime of few
seconds to few minutes to arrest an incident of abnormal situation from turning in to
an emergency. This is the role of the in-charge who is the incident controller (IC)
along with his team.
Emergency Plan Objectives
Specific objectives of the Emergency Response Plan are to be clearly listed about the
responses desired for successful management of the possible emergency situations. Suggested
objectives could include:
To define and assess emergencies, including risk and environmental impact
assessment.
To control and contain incidents.
To safeguard employees.
To minimize damage to property or / and the environment.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 169
To inform employees, the general public and the authority on the hazards / risks
assessed.
Safeguard provided residual risk if any and the role to be played by them in the
event of emergency.
To inform authorities like Safety and Fire Department and Mutual Aid Centers to
come up for help.
For effective rescue and treatment of casualties and to count the injured.
To identify and list fatal accidents if any.
To secure the safe rehabilitation of affected areas and to restore normally.
To provide authoritative information to the news media.
To preserve records, equipments etc. and to organize investigation into the cause
of the emergency and preventive measures to stop its recurrence.
To ensure safety of staff and patients and resume work.
To work out a plan with all provisions to handle emergencies and to provide for
emergency.
Preparedness and the periodical rehearsal of the plan.
Setting-up of Emergency Infrastructure
To enable the key persons to implement the DMP, the following infrastructure will require to
be set up:
ASSEMBLY POINTS
In case of emergency, the site needs to be evacuated immediately. On evacuation, people will
go to pre-assigned assembly points. The charge will be taken by shift in charge, in his
absence person deployed by In-charge/HSE Head/Contractor will be in charge of respective
assembly points, and will supervise Assembly and Head Count. A Board indicating the
Assembly Point having relevant information is placed at point for guidance.
Liaison with State Authorities
Government authorities, local hospital, police fire services, taluka, district collector will be
kept informed about the occurrence and development of any incident by the In-charge/HSE
Head/Contractor and procure necessary help and guidance from these authorities.
TASK FORCE OF ESSENTIAL STAFF
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 170
A task force of essential trained staff is made available to get work done by the HSE Head.
Task Force personnel shall be trained to perform tasks as mentioned above.
Emergency Control Center
Site In-charge office will act as Emergency Control Center and provided with required
communication facilities. The Control Center is situated in an area of minimum risk and close
to the road to allow for ready access by a vehicle if other systems fail or extra communication
facilities are needed to be set up. The Emergency control center should consist of following
items:
External telephones
Internal telephones
E-Mail facilities
Emergency plan
Stationeries
Torches and emergency lights
Ropes and Life Jackets
I. Fire Fighting
Person noticing the fire shall immediately raise alarm and ask the nearest person to inform In-
charge.Fire water network/foam pourers and portable Fire Extinguisher shall be used in an
attempt to extinguish the fire, by the person at site at 24X7. In-charge shall assess the severity
of fire and if likely to be severe shall take following steps:
Call fire tenders and mobile trailer pump from nearby fire department.
Call for assembly of all persons at assembly points
Arrange for turning "OFF" main switch of electricity supply
II. Emergency Preparedness for Electrical Shock
Source of power should be put off immediately in case of any electrical shock.
Injured person should be shifted to safe place.
Persons engaged in rescuing operation should use all Personal Protective Equipments
(PPE) and take appropriate precaution while removing the injured persons.
Trained persons are engaged to give first-aid treatment to injured persons.
In case of major injury, the injured is shifted to the Dispensary/Hospital.
In case of electrical fire, only CO2 type Fire Extinguisher is used.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 171
Accident report in prescribed form is sent to appropriate authority in case of
reportable injury.
All the persons engaged to carry out this operation should be equipped with
appropriate PPEs like safety shoes, helmets, dust masks etc.
III. Natural Disasters
EARTHQUAKE
When earthquake hits, all persons shall be encouraged to run out in the open
areas designated as Assembly Points.
All the electrical supply should be disconnected by the electrical department.
All key personnel shall reach site immediately and carry out designated
responsibilities
Steps detailed in Emergency preparedness are to be carried out.
As soon as earthquake tremor stops – Incharge shall:
Check all areas to ensure that fireis doused.
Check all areas for persons trapped inside.
Search and Rescue Operation shall be launched with help of
Workers, if there is obvious damage to building.
FLOOD
As soon as the water level starts rising up, a siren must be wailed to make the workers
aware of the matter.
All the dredging activity must be stopped immediately. Workers shall be encouraged
to evacuate the site.
All the equipments should be removed and power supply must be cut. .
IV. Treatment of Affected Persons
Injured / Affected persons shall be provided suitable first-aid treatment and sent to
Doctors/Empanelled hospitals for further treatment depending on injury.
Patients requiring further treatment shall be sent in Ambulances to Hospitals in
Mehsana/Ahmedabad.
Patients suffering from minor problems shall be discharged and sent home after
preliminary treatment.
V. Post Emergency Activities
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 172
Medical checkup: Medical checkup of affected persons if any and suitable medical
aid shall be provided.
Collection of Records: Exact information shall be collected regarding cause of
Emergency and remedial measures suggested preventing recurrence.
Inquiry: Detailed inquiry shall be carried out to find out cause, which will be in the
form of fact-finding and recommendations made to suitable authority.
Insurance Claims (if any): Insurance claims for damage due to consequences of
emergency shall be filed.
VI. Training
Regular training of all concerned personnel will be conducted to enable the Staff to face any
type of Emergency be it Natural Disasters, Fire in Equipment, any other mishap at site.
Table 9.6:Control and Action Plan of the Incidents
S.No Causes Control Procedure Responsible Person
(Designation)
1 Heavy
rainfall or
flood
Closing the drilling
operation
Siren Wailing for
Workers .
Stopping of drilling
activity.
Confinement of the
Area by making sign
boards.
Site In-charge/ HSE
Manager
2 Poor Cabling
/ Earthling
To Rotating
Equipments
Periodic servicing
of electrical
instruments.
Periodic Inspection
/ Audit of Electrical
equipments – cables
and accessories
Non Compliance to
SOP.
Section VII – Works
of Licensees of Indian
Electricity Rules 2003
Electrical In charge
3 Head on
collision
between
vehicle and
another
Haul road should be
sprinkled
Regularly.
Driving at night
shall be avoided.
Sprinkling of water in
haul road as per Reg.
124MMR 1961 and
appointment of RTO
licensed drivers
Site In-charge/ HSE
Manager
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 173
S.No Causes Control Procedure Responsible Person
(Designation)
vehicle (due
to poor
visibility or
incompetent
drivers)
Driver should be
RTO licensed
holder for driving
vehicle.
Poor vehicle
maintenance
Periodic servicing
of vehicle, Brakes
and steering
apparatus should be
in good condition.
Headlight and tail
light of the vehicle
should be in good
condition
Procedure for
Maintenance of
Vehicles under Reg.
176 of MMR -1961
Site In-charge/ HSE
Manager
4 Poor
machinery
Maintenance
Periodic servicing
of machineries.
Periodic Inspection
/ Audit of
Machineries and
Structures Non
Compliance to
SOP.
Procedure laid under
Section 174 Chapter
XVI – Machinery and
Plant of MMR 1961
Site In-charge/ HSE
Manager
9.7 Effluents and Solid Waste
All efforts will be made to minimize the waste generated while the project is in progress. The
main types of waste that will be generated are:
Drill cuttings, waste mud, sludge and waste water
Used fuels and chemicals
Used oil and filters
Sewage
Camp waste
Medical waste
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 174
9.7.1 Drill Cuttings, Waste Mud, Sludge and Wastewater
A water-based mud system will be used to drill each exploratory well and a base salt
(Potassium Sulphate) will be added to the system to avoid borehole instability problems. Dry
cuttings will be disposed in an HDPE lined pit. Waste mud, sludge, and wastewater will be
stored on site in HDPE lined pits and will be tested to ascertain hazardous or non-hazardous
nature. HDPE lining will be made with 1mm thick impervious layer. If non hazardous, pits
with these wastes will be closed as per regulatory pit closure protocols. In case of hazardous
status, drilling wastes will be disposed as per the Hazardous Wastes Management Rules
2016.Figure 9.1 below illustrate the water balance for drilling.
Figure 9.2: Water Balance for Drilling
9.7.2 Fuels and Chemicals
Used fuels, oils, and chemicals will be stored in containers in areas lined with impervious floors and
surrounded by containing dykes at the rig site. Recyclable material will periodically be transported out
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 175
of the project area and given to the contractors. Disposal of off specified hazardous wastes willbe
ensured through the suppliers of the material. IPL, through its suppliers ensures that all surplus or
residual chemical additives are given back to them on restocking basis.
9.7.3 Used Oil and Filters
Used Oil & filters and spare parts, can largely be recycled. All such waste will be collected
and transported out of the project area and sold to authorized recyclers.
9.7.4 Sewage
As part of the site preparation stage, a drainage and sewerage system will be constructed for
the camp and the rig. The sewerage system will consist of septic tanks followed by soak pits
for the collection and treatment of wastewater generated from the camp kitchen, laundry, and
showers. Overflow from the soak pits, if any will be sprayed over the ground allowing it to
soak away or evaporate.
Sewage from toilets will go into septic tanks from where, after being treated, the wastewater
will go into a soak pit The semi-solid residue from septic tanks will be periodically cleaned
and transported to municipal solid waste disposal site in Bhuj.
9.7.5 Medical Waste
Small amounts of medical waste like used syringes, bandages, empty medicinal bottles and
other used items will be generated. Usually this may not be more than few kgs (5-10 kgs).
After proper segregation, this waste will be given to the local hospital at Kutch for proper
disposal.
9.7.6 Camp Waste
It is expected that paper, plastics, metal wood, kitchen and food waste will be generated from
the domestic activities during the drilling operations. All camp wastes will be segregated at
the segregation pit built at the project site.
Table 9.7: Quantity of solid waste generated
S No Waste Type Quantity Characteristics
1 Kitchen
Waste/MSW
50 kg/day Organic Waste, MSW
2 Drill cuttings 250-500
m3/day/well
Mainly inert material
consisting of Shale,
sands and clay; and
About 1% of drilling
mud
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 176
3 Paper, wood,
plastic container
(other than
chemicals)
50 kg/day General scrap
4 Drilling mud
(Fluid)
300m3/day Barite
Betonite
Traces of Heavy metals
5 Used Lead
Batteries
4 -5 Batteries/year Acid and lead
All biodegradable waste (food & kitchen waste) at the site will be collected and disposed off
into two small humus pits (each of 2m x 2m x 1.5 m) within the drilling site area away from
common use by rig crew members. The humus pits are to be covered with soil on daily basis
to avoid any odour nuisance due to decomposition and check any contact with the flies or
insects. Any non-combustible and non-biodegradable waste, such as glass, metal, and plastic,
will be separated and transported through contractor for disposal.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 177
CHAPTER-10 : Conclusions
The block is mainly located in Ahmedabad district of Gujarat; 36 km SW of Ahmedabad
city and 20 km SW of Navagam Field of ONGC. The block spreads over an area of 4 sq.
km. on the western rising flank of Ahmedabad – Mehsana tectonic block of Cambay
Basin. Climate of the area varies from Arid to Semi-arid type. The drilling locations will
be planned far away from human habitation. Hence, the drilling operation is unlikely to
have any negative impact on the livelihood of local population. Further, the land will be
reinstated to its existing condition as far as possible.
The land for the drill site was supplying gas until 2004, when the production stopped due
to water ingress in the wells. Three wells exist in the field. Now, as a part of the
reactivation process, Sun petro intends to drill new wells in the Field near the existing
three wells. In case of discovery, there will be overall development of the surrounding
area due to additional infrastructure facilities, employment opportunities, etc.
The drilling of the exploration well will result in a range of controlled releases to the
environment with remote possibility for non-routine or accidental releases. The
environmental impact assessment process has systematically identified and assessed all
potential environmental impacts associated with the drilling operations.
The main source of liquid effluents generated during the drilling operations will be from
the spent drilling fluid resulting from the cleaning of the cuttings from the drilling fluid
circulation system. However the drilling fluid to be used for the drilling of wells will be
water based mud, which will not pose any risk of contamination to subsurface
formations, and the disposal of the fluid and cuttings will also be less problematic.
The drilling fluid comprises of chemicals and the effluents generated during the drilling
will contain only minor traces of heavy metals concentration, well below the CPCB
norms prescribed for effluents. However, the EIA also provides safe guards against high
levels of heavy metals or other hazardous substances in the drilling wastes as it proposes
that the proponent will undertake appropriate tests to ascertain the hazardous/non-
hazardous nature of its drilling wastes before final disposal.
The major solid wastes generated during operations will be the rock cuttings. These will
be separated from the circulation system and adequately dried and stored at site
temporarily in separate cuttings pit.
EIA Report of Exploration and Development of Drilling Wells in the Existing PML area (PML 4 sq.km) of Baola Field at Village Salajada, Tehsil Bavla, District
Ahmedabad, Gujarat by M/s Sun Petrochemicals Pvt. Ltd
M a n t e c C o n s u l t a n t s P v t L i m i t e d
Page 178
Because of the control measures and management processes in place, there should be no
significant impacts resulting from the proposed operations. A detail environmental
management plan (EMP), which includes mitigation management matrix as well as
environmental monitoring protocols. This plan is primarily an implementation document
for the operator as well as an audit document for any regulatory body to see if
prescriptions of the EIA are being implemented.
To ensure that adverse environmental impacts are minimized and sustainable
development of the area is possible, block operator will ensure that the following
monitoring targets during the drilling operations are at least met:
Periodic check on wastewater discharge quality
Periodic check of water quality of natural water bodies around the drilling site
Performance of comprehensive waste management plan as outlined in the
EMP
Periodic check of protective measures in place.
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