City of Olean Wastewater Master Plan Master... · Wastewater Master Plan 1313-075 Final Draft Dec...

Volume 1: Executive SummaryFINAL DRAFT

Malcolm Pirnie Project: 1313-075

Prepared for the City of Olean bythe Planning Team:

City of OleanWastewater Master Plan

City of Olean, New YorkDecember 2005

The City of Olean Wastewater Master Plan

Introduction

1313-075 Final Draft Dec 2005

The Planning Team:

A. HISTORICAL PERSPECTIVE The City of Olean’s wastewater collection, conveyance, and treatment system is composed of approximately

400,000 feet of separate sanitary sewers (ranging in diameter from 6 to 42 inches), seven pump stations, and a

wastewater treatment plant (WWTP). The City also owns an extensive storm water collection and conveyance

system. The existing wastewater and storm water systems (collectively referred to as “infrastructure”) are

extremely valuable assets to the community; however, they require ongoing and planned maintenance and

continual improvement in order to maintain their value and goal of protecting public health and the environment.

It is estimated that replacement of the City’s entire infrastructure would cost in excess of $200 million.

The City’s Department of Public Works (DPW) is committed to maintaining the existing infrastructure to the best

of its ability, and has established a solid track-record of operating and maintaining this infrastructure with

minimal cost requirements. However, the majority of the system components are 40 to 100 years old and are

currently failing to meet their mission of protecting public health and the environment. As critical elements of

the infrastructure deteriorate, wear out, and reach the end of their useful life, additional investment is required.

In recent history, sewer rate increases have not kept pace with the required level of infrastructure maintenance

investment, and therefore numerous regulatory violations have occurred and the Department’s debt service has

increased. Further, the cost to protect and maintain this public asset (without a significant capital investment)

increases with each passing year. Therefore, this Master Plan provides a road map for restoring and maintaining

the City’s infrastructure with a goal to improve regulatory compliance, protect public health, reduce discharges

to the environment, and ensure that one of the City’s most valuable assets is maintained well into the future.

As a result of a lack of investment, the wastewater collection system has aged and physically deteriorated. This

has led to excess water (from rain and high groundwater table conditions) entering the sanitary collection

system during wet weather conditions. The City has had long-standing problems with collection, conveyance, and

treatment of these excess wet weather flows. The excess water in the system contributes to basement backups,

localized street flooding, and “solids washouts” and permit violations at the treatment plant. To demonstrate

the magnitude of this excess flow, consider that the average flow observed at the WWTP during dry weather

conditions is 2.0 million gallons per day (MGD). An indication of the “leakage rate” and degree of physical

deterioration is that during wet weather conditions, the peak instantaneous flows can reach 25 MGD, or over 12

times dry weather flows.

In addition to deteriorated and leaking sewers, the City has other pressing infrastructure issues, most notably

undersized interceptor sewers and a WWTP that is not of adequate size and overall condition to effectively treat

the excess wet weather flows. All of these factors have synergistically impacted the treatment plant in a

negative way, resulting in State Pollutant Discharge Elimination System (SPDES) discharge permit violations for

key regulated pollutants such as, settleable solids (SS), total suspended solids (TSS) and biological oxygen

demand (BOD).



The Planning Team:

In 1999 the New York State Department of Environmental Conservation (NYSDEC) issued an Order on Consent

(Order) to the City. The Order specifically required that excessive wet weather flows be eliminated and that full

SPDES permit compliance be achieved, primarily through inflow and infiltration (I/I) reduction measures. The

City retained Malcolm Pirnie, Inc., (Malcolm Pirnie) to devise an inflow abatement plan in response to the Order.

Specifically, Malcolm Pirnie was retained to develop and perform a multi-year engineering study to identify

potential inflow sources. A series of smoke and dye testing efforts was conducted in the City’s system from 1999

through 2002. These efforts led to the proposal of a four-phase, $1.45-million compliance strategy aimed at

removing street catch basins from the sanitary sewer system

A four-phase compliance strategy was developed because of concerns over the ability of catch basin removal to

provide consistent SPDES permit compliance. The concept of a four-phase program allowed the City to complete

initial lower cost and higher expected impact phases (i.e., largest potential return on investment) and then re-

evaluate the likelihood for compliance before moving forward with the entire program.

These efforts served as the basis for a renegotiated Order on Consent, which required the City to implement the

four-phase catch basin removal program. The first two phases of the program have been completed at a

construction cost of $182,000, resulting in the disconnection of approximately 60 priority catch basins and

further investigation of inflow sources for areas identified as having direct or indirect connections during

previous smoke testing and dye testing efforts.

A significant reduction in treatment plant flows and peaking factors has not been observed as a result of the first

two phases of catch basin removal. Additionally, through closed-circuit television (CCTV) investigations,

evidence was collected that identified widespread infiltration as the root cause of the excess wet weather flows

observed in the City wastewater system, as opposed to inflow. Prior to the implementation of costly and low-

impact inflow reduction measures under Phases III and Phase IV of the program, the City and Malcolm Pirnie

decided to re-evaluate the Order and overall compliance approach.

In early 2005, the City made a decision to shift toward a more holistic “strategic asset management”-based

approach for addressing excessive wet weather flows and permit compliance issues. In May 2005, the City

proposed to the NYSDEC that the remaining two phases of the original compliance plan be put “on hold” while a

Master Plan effort was developed to identify the fastest and most cost-effective method for improving SPDES

compliance.

The Master Plan approach included an overview of all of the City’s major infrastructure elements with the goal of

developing a cost-effective approach for achieving permit compliance. The City proposed that the schedule of

improvements developed as part of the Master Plan become the new Order on Consent compliance schedule.

The NYSDEC approved the Master Plan approach in a June 2005 letter and has recently forwarded to the City a

revised Order on Consent that concurs with this approach.



The Planning Team:

B. MASTER PLAN DEVELOPMENT This Master Plan is the result of a collaborative effort between the City of Olean Department of Public Works,

Malcolm Pirnie, Inc., and LaBella Associates, P.C. (LaBella), collectively referred to as the Planning Team in this

document. The overall goal of the Master Plan is to identify and budget major engineering studies, capital

improvements, and other expenditures (i.e., staff and capital equipment) necessary to address the City’s aging

infrastructure needs with a short-term focus on SPDES permit compliance and a long-term focus on strategic

asset management.

This plan describes these projects, assigns budgetary costs, and generally prioritizes the work within a long-term

framework so that the City has a document that can be used to plan and implement system improvements and

develop funding projections (i.e., bonds and rate adjustments). Actual implementation time frames and project

priorities are likely to change as the City continues to gather additional data and information; however, this

document provides budgetary costs and a proposed precedence of projects that can be considered as changes

are required.

This Master Plan identifies six major program elements, which are listed below. The party, or parties, responsible

for developing the particular element is shown in parenthesis after the element.

1. Treatment Plant Improvements (Malcolm Pirnie and City)

2. Interceptor Improvements (LaBella and City)

3. Pump Station Improvements (City)

4. Sewer System Asset Management Program (City)

5. Storm Sewer Asset Management Program (Malcolm Pirnie and City)

6. Sewer Use Ordinance Enforcement (City)

The purpose of this executive summary document is to provide a brief description of each major program

element, including a description of recommended engineering and construction projects, the element’s impact on

achieving regulatory compliance, estimated project costs, and recommended framework and initial sequence of

implementation.

C. RESULTS The primary product of the Wastewater Master Plan is the framework and initial sequence of improvement

projects (Figure 1). Figure 1 presents an overall framework for implementing each major program element of the

Master Plan, including establishing an initial priority of implementing the various elements.

It should be noted that the framework and initial sequence is dynamic and will change annually as additional data

are gathered and projects and other work are reprioritized with the goals of improving regulatory compliance

and protecting this valuable public asset in the best, most cost-effective way possible. The exception is Phase I

improvements (see project “1a1” on Figures 1 and 2) at the WWTP, which must be completed in the very near

Figure 1City of Olean

Wastewater Master PlanFramework and Initial Sequence

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1b1

1c1 1c2 1c3 1c4 1c5 1c6 1c7

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Legend Refer to Figure 2 for budgetary project costs.StudyDesign Footnotes:Construction/Implementation (1) May be eligible for NYSERDA grant; pump station implementation dependent on results of study.Monitoring (2) Pump station implementation dependent on results of study.

(3) May be eligible for FEMA grant and has interdepartment value (police, fire, etc.).Staffing (4) Includes Vactor replacement, trucks, root cutter, flow meters, etc.Staffing Additions + (5) Includes CCTV, cleaning, root control, manhole repair, minor dig and replacement projects, etc.Staffing Subtractions - (6) Includes stormwater pump station study and Two Mile Creek storm capacity study.No Staffing Change

b. Education

c. Enforcement

Major Program Elements

a. Notification

d. On-Going Maintenance

c. Pump Station Improvement Projects (2)

b. System-Wide Consolidation, Needs, and Energy-Savings Study (1)

b. Storm Sewer System Needs Study (6)

6. Sewer Use Ordinance

c. Storm Sewer System Improvement Projects

d. On-Going Investigation and Maintenance

2. Interceptor Improvements

4. Sewer System Asset Management Program

a. Original Phase III and IV Work

a. East Olean PS

d. Collection System Capital Equipment Purchases (4)

c. Staff Adjustments to Match Needs (New Hires)

a. GIS and Mapping Technology Development (3)

b. Second Tier Priority Interceptor Projects

a. First Tier Priority Interceptor Projects

3. Pump Station Improvements

5. Storm Sewer Asset Management Program

b. Rehab/Reconstruction of Local Sewer System

e. On-Going Investigation and Maintenance (5)

c. End-of-Useful-Life Equipment Replacements

b. Phase II - Solids Handling Improvement Projects

a. Phase I - Wet Weather Compliance Projects

c. Long-Term Interceptor Rehabilitation Projects

1. Treatment Plant Improvements

1a1

1b2

5a1

3c1

4b1 4b2 4b3 4b4

Years Following Master Plan Approva

Dec. 2005 Wastewater Master Plan - Final Draft

Figure 2City of Olean

Wastewater Master PlanProject Summary List

Major Program Elements Project Number Project Name/Description Total Project

Budget (1) Notes/Comments

1a1 Wet Weather Improvements at WWTP - Phase I $8,400,000 Wet Stream Process Improvements

1b1 Wet Weather Improvements at WWTP - Phase IIA $1,900,000 Solids Handling Process

Improvements

1b2 Wet Weather Improvements at WWTP - Phase IIB $5,000,000 Solids Handling Process

Improvements

1c1 WWTP Equipment Replacement - Project 1 $800,000 Critical Equipment Replacaments as

identified by Olean WWTP Staff

1c2 WWTP Equipment Replacement - Project 2 $500,000 Budget for future equipment

replacement projects










replacement projects 2a1 First Tier Interceptor Improvements - Project 1 $3,780,000 Two-Mile 2a2 First Tier Interceptor Improvements - Project 2 $570,000 Third Street 2a3 First Tier Interceptor Improvements - Project 3 $2,130,000 Dyke Sewer (East Olean) 2a4 First Tier Interceptor Improvements - Project 4 $1,200,000 Misc. MH to MH Replacement 2b1 Second Tier Interceptor Improvements - Project 1 $960,000 N. Union St. Sewer (Main to RR) 2b2 Second Tier Interceptor Improvements - Project 2 $1,120,000 Sullivan/Canal/Reed Sewer

2b3 Second Tier Interceptor Improvements - Project 3 $1,480,000 Canal/Shawmut Y Sewer (Shawmut

PS to 4th St. PS)

2b4 Second Tier Interceptor Improvements - Project 4 $1,390,000 W. State Street Sewer (W. City limit

to 17th) 2b5 Second Tier Interceptor Improvements - Project 5 $630,000 Ohio St. & E. River Dr. 2b6 Second Tier Interceptor Improvements - Project 6 $940,000 Connell/Buffalo/10th St. Sewers 2b7 Second Tier Interceptor Improvements - Project 7 $1,860,000 36" & 42" Dyke Sewer Rehab.

2b8 Second Tier Interceptor Improvements - Project 8 $840,000 New Siphon under Allehgeny River 2b9 Second Tier Interceptor Improvements - Project 9 $870,000 New Pratt's Brook Sewer 3a1 East Olean Pump Station Project $2,320,000 Currently in design phase 3b1 System-Wide Consolidation, Needs, and Energy-Savings Study $100,000 -- 3c1 Pump Station Improvement Projects TBD Projects based on previous study 3d1 Pump Station On-going Investiqation & Maintenance $15,000 -- 4a1 GIS and Mapping Technology Development TBD --

4b1 Local Sewer System Rehab/Reconstruction - Project 1 TBD Projects will based on Asset

Management Program


Management Program


Management Program


Management Program

4d1 Collection System Capital Equipment Purchases TBD Projects will based on Asset

Management Program 4e1 Sewer System On-Going Investigation and Maintenance TBD -- 5a1 On-Going Phase III and Phase IV Storm Sewer Projects $400,000 Previously bonded and funded 5b1 Storm Sewer System Needs Study $100,000 Scope and budget TBD 5c1 Storm Sewer System Improvement Projects TBD -- 5d1 On-Going Storm Sewer Investigation and Maintenance TBD -- 6a1 Sewer Use Ordinance - Notification -- City Personnel will complete 6a2 Sewer Use Ordinance - Education -- City Personnel will complete 6a3 Sewer Use Ordinance - Enforcement -- City Personnel will complete

Notes:1 - All estimates are in 2005 dollars. Upon finalization of Consent Order and agreement upon precedence of projects appropriate escalation factors will need to be applied to all projects.

5. Storm Sewer Asset Management Program

6. Sewer Use Ordinance

1. Treatment Plant Improvements

2. Interceptor Improvements

3. Pump Station Improvements

4. Sewer System Asset Management Program




The Planning Team:

term, as noted on Figure 1, in order to move the City toward permit compliance and to fulfill the Order

requirements.

A description of each major program element is provided in Sections 1 through 6 of this document. To

complement the program framework, a detailed project summary table was developed for each subcomponent of

the Master Plan (Figure 2). The project summary table provides project cost information and comments for each

subcomponent of the Master Plan.


Program Element 1: Treatment Plant Improvements

1


The Planning Team:

Malcolm Pirnie conducted a desktop engineering evaluation of the wet stream treatment capacity of the Olean

WWTP. Based on this evaluation, the secondary treatment system was identified as the primary bottleneck, with

an estimated peak treatment capacity of approximately 7.0 MGD under typical operating conditions. The original

design capacity of the WWTP was 5.0 MGD, and peak instantaneous flows in excess of 7.0 MGD are often

experienced at the plant. These high flows result in the plant’s biomass (or “biosolids”) being “washed out” to

the Alleghany River. These washout events, themselves, are a SPDES permit violation; however, these events

cause such substantial loss of the biomass material that a single high flow event often causes permit non-

compliance to continue for multiple weeks after the storm.

The following three alternatives were evaluated to increase the treatment capacity and reduce solids washout

during high flow conditions:

Alternative 1 – Converting the Existing WWTP to Contact Stabilization. Phase I includes modification of the existing plant through construction of a fourth aeration basin; a third, deeper secondary clarifier; and piping, pumps, and concrete channels so that the plant can be operated in a step-feed aeration mode during dry weather and a contact stabilization mode during wet weather conditions. Additionally, headworks improvements are planned to reduce back-ups in the interceptor sewers. These improvements are likely to increase the plant’s process capacity to approximately 15 MGD. These improvements would need to be followed by Phase II modifications, which will include upgrades to the plant’s solids handling system to accommodate the additional solids generated and retained during wet weather conditions with Phase I modifications in place, address current treatment capacity problems, improve worker safety, and replace aging equipment of the existing solids handling processes.

Alternative 2 – High-Rate Treatment (HRT). This alternative would include installation of a parallel, side-stream treatment process (e.g., Densadeg or Actiflo), which would be added onto the existing treatment plant to treat wet weather flows in excess of 7.0 MGD. This parallel HRT process would be used only during wet weather flow conditions, and therefore would require additional operations and maintenance attention before, during, and after storm events. Headworks and solids handling system improvements would also be needed for this alternative.

Alternative 3 – Overflow Retention Facility (ORF). An ORF is a large concrete tank that is used to temporarily store excess wet weather flow — in this case flows higher than 7 MGD — with a subsequent pump station to return the stored volume to the head of the existing plant for treatment after the wet weather event has passed. Headworks and solids handling system improvements would also be needed for this alternative.

Based on a technical and economic evaluation of the alternatives, as well as plant operator, Olean DPW staff, and

NYSDEC staff input, Alternative 1 was selected as the preferred alternative. The modifications associated with

Phase I of Alternative 1 (see Figure 3) offer the advantages of being in operation during all weather conditions to

constantly improve effluent quality (as opposed to only during wet weather as with Alternatives 2 and 3).

Alternative 1 requires little or no operator startup time to respond to changing influent conditions, protects the

plant’s biomass during wet weather conditions, and provides technology that is familiar to, and preferred by, the

City’s plant operators.


1-2


The Planning Team:

Phase I, as shown on Figure 3, will improve the wet weather capacity of the WWTP and includes the following

modifications:

Installation of an additional aeration basin

Installation of an additional secondary clarifier

Installation of a new splitter chamber and a new secondary sludge pump station

Modifications to the existing aeration basins

Headworks improvements, including:

- Removal of the existing bar rack - Replacement of the existing mechanical screens - Replacement of Main Pump No. 2, with a variable-frequency drive (VFD)

The schedule for implementation of these improvements is shown under Program Element #1 (Treatment Plant

Improvements) on Figure 1. The estimated cost for this improvement is $8.4 million (see Figure 2).

Phase II, as shown on Figures 4 and 5, will address the solids handling portion of the WWTP includes the following

modifications:

Construction of a new sludge thickener tank

Replacement of the existing primary and secondary clarifier weirs

Replacement of the existing sludge recycle pumps

Rehabilitation of the existing anaerobic sludge digesters

Rehabilitation of the digester control building

Replacement of the existing belt filter press (BFP) with two new-generation BFP units.

The sludge thickener tank will improve plant performance during all influent flow conditions by providing solids

storage that is not currently available in the plant, improving solids removal efficiency in the primary clarifiers,

and preventing primary solids washout into downstream processes, which currently takes up capacity in the

secondary treatment process and digesters. The additional storage offered by this modification would improve

permit compliance during high solids production periods because the biosolids would be stored as opposed to

being flushed out by high flows. A 1996 study funded by the New York State Energy Research and Development

Authority (NYSERDA), which included an evaluation of the plant’s anaerobic digesters, showed that the anaerobic

digesters are performing below recommended standards with regard to volatile suspended solids (VSS) removal.

Mixing and heating improvements to the digesters would increase the VSS removal efficiency, thereby providing

additional process capacity. Additional improvements are needed for the anaerobic digesters, including piping

replacement, structural and instrumentation improvements, and worker safety improvements in the digester

control building. Addition of new-generation dewatering technology would improve reliability and reduce hauling

and operating costs.

As shown on Figure 1, solids handling improvements will occur in two stages to reduce rate impacts (Phase IIA

and IIB). Figure 2 provides the estimated costs for Phase IIA at $1.9 million and IIB at $5.0 million.


1-3


The Planning Team:

Based on the equipment assessment conducted by Malcolm Pirnie and the City under the scope of this project,

several major equipment items were identified for replacement above and beyond the work included in Phases I

and II. These critical equipment replacements include (see Figure 6):

Aerated grit screw conveyors

Administration building heating, ventilation and air conditioning (HVAC) system (new)

Primary sludge pump nos. 1 and 2

The schedule for implementation of these improvements is shown on Figure 1. The estimated cost for these

improvements is $800,000 (see Figure 2).

While the expenditures for treatment plant improvements are significant, they are the most critical to improving

SPDES permit compliance. Therefore, these improvements are scheduled to occur early on in the Master Plan

program to bring about an immediate improvement in plant performance and achieve permit compliance as soon

as possible. Additional details associated with evaluation of the Olean WWTP are included in the WWTP Summary

Report (Volume 2).

Major Components:• Installation of additional aeration basin (sludge reaeration).

• Conversion of aeration system to step-feed during dry weather conditions; contact stabilization mode implemented during wet weather conditions.

• Installation of additional secondary clarifier.

• Construction of new splitter chamber and new secondary sludge pump station.

• Headworks improvements including removal of existing bar rack, and replacement of mechanical screens and main pump no. 2 (with a variable-frequency drive).

N

Additional Aeration Basin(Sludge Reaeration)

Additional Secondary

Clarifier Splitter Chamber

Secondary SludgePump Station

Existing Chlorine Contact Tank Feed

New Clarifier EffluentTo Existing Chlorine Contact Tank Feed

Secondary Sludge From New Clarifier to Existing Sludge Well

With Mod

ifications

to

Existing

Basins fo

r

Step-Fee

d

City of Olean Wastewater Master Plan

Figure 3Alternative 1

Contact StabilizationDecember 2005 1313-075

N

Mechanical Bar Screens

Main InfluentPump No. 2

Major Components:

• Construction of a sludge thickener tank to co-thicken primary and secondary sludge prior to anaerobic digestion.

• Primary and secondary clarifier weirs.

• Sludge recycle pump Nos. 1 and 2.

N

Sludge Thickener

Tank

WAS and Primary Solids

Figure 4Phase IIA

Solids Handling ImprovementsDecember 2005 1313-075


Primary ClarifierWeirs

Secondary ClarifierWeirs

Recycle Pumps

Major Components:

• Rehabilitation of the anaerobic sludge digesters and control building.

• Installation of two new-generation belt filter press units.

• Installation of chemical feed facilities to enhance settling in secondary clarifiers.

N

Chemical FeedFacilities Installation

New-generation belt filter press

installation

Figure 5Phase IIB

Solids Handling ImprovementsDecember 2005 1313-075


Rehabilitation of ExistingAnaerobic Sludge

Digesters and Control Building

Major Components:

• Aerated grit screw conveyors

• Administration building heating, ventilation and air conditioning (HVAC) system

• Primary sludge pumps Nos. 1 and 2.

N

Aerated GritScrew Conveyors

AdministrationBuilding

HVAC

Figure 6Equipment Replacement &

RehabilitationDecember 2005 1313-075


Primary Sludge Pumps


Program Element 2: Interceptor Improvements

2


The Planning Team:

Interceptor sewers in the City of Olean — those sewers greater than 12” in diameter — are essential to the

conveyance of wastewater to the treatment plant. Interceptor sewers represent 33% of the total 69.5 miles of

sewer in the system. Many of these interceptor sewers are over 100 years old, and a catastrophic failure within

this system would result in immediate and widespread residential flooding and a direct discharge of untreated

wastewater into adjacent waterways.

In order to prioritize improvements to the City of Olean’s wastewater collection, conveyance, and treatment

system, the Planning Team first developed a desktop evaluation to assess the condition of all interceptor sewers.

Sections were priority rated from 1 to 5, with 1 representing highest risk for failure/backup and 5 the least risk.

These ratings were based on field experience, repair and complaint history, and past studies.

Those sewers receiving a rating of 1 or 2 were examined by City staff using recently purchased TV inspection

equipment. Over 20,000 linear feet (lf) of interceptor sewers were televised. This effort was essential in order

to verify desktop ratings with a physical evaluation, identify lateral locations for future repair/replacement

efforts, and assist in the determination of the appropriate method for rehabilitation/replacement.

A detailed cost model for interceptor rehabilitation/replacement was developed for priority 1 and 2 rated

interceptor sewers. This cost model is based on the following criteria:

Sewer depth

Sewer diameter

Method of rehabilitation/replacement

Surface condition above interceptor (i.e., concrete, asphalt, open field)

The estimated budget for rehabilitation/replacement of the 20,270 feet of the priority 1 interceptor sewers is

$7.7 million. The rehabilitation/replacement of the 25,115 lf of the priority 2 interceptor sewers is $10.1 million.

The schedule for implementation of these improvements is shown under major program element No. 2

(Interceptor Improvements) on the Master Plan framework and initial sequence (Figure 1). These improvements

are shown on Figure 7.

Expenditures for the priority 1 interceptor improvements are scheduled to begin immediately after the first phase

of treatment plant improvements. These improvements are scheduled to occur early on in the Master Plan

program to assist in maintaining permit compliance through reduction of I/I, and more importantly, to avoid a

catastrophic failure within the wastewater collection and conveyance system that could jeopardize public health.

Additional details associated with evaluation of the Olean interceptor sewer are included in the Interceptor

Improvements Summary Report (Volume 2).

The priority list will be reviewed annually to evaluate priority 3, 4 and 5 interceptor sewers based on additional

field inspection and TV inspection information. The annual review may reveal that some of these interceptor


2-2


The Planning Team:

sewers will need to be reclassified to priority 1 or 2 and scheduled for rehabilitation/replacement within the

Master Planning framework.


Program Element 3: Pump Station Improvements

3


The Planning Team:

As shown on Figure 1, this program element is composed of the East Olean Pump Station construction project; a

system-wide consolidation, needs, and energy-savings study; subsequent pump station improvement projects;

and ongoing pump station maintenance.

As shown on Figure 1, the East Olean Pump Station is currently undergoing design (see Figure 7 for affected

areas), with construction scheduled to begin in the Spring of 2006. The estimated project cost is $2,320,000

million. The new East Olean Pump Station is a priority project element because it will:

Provide increased capacity to handle a portion of flows from East Olean, the Town of Olean, and the Town of Portville that are currently handled by the Shawmut Pump Station.

Provide sufficient capacity to handle all flows noted above, as well as flows currently handled by the Shawmut Pump Station in the event of the Shawmut Station’s failure.

Minimize the likelihood of sanitary sewer overflows and household basement backups in priority areas of East Olean.

Provide additional pumping capacity to allow for future population growth within the geographic areas noted above.

The system-wide consolidation, needs, and energy-saving study would be conducted after completion of the East

Olean Pump Station construction project. The study would allow for a holistic evaluation of the City’s pump

stations, including identifying opportunities for pump station consolidation and energy savings, and consider if

any additional pump station construction projects are necessary. It is anticipated that this study will identify a

set of pump station improvement projects. These projects would likely be similar to those previously identified in

the sanitary pump station evaluation prepared by the City pursuant to the Order revision in 2003, which focused

on the pump stations’ vulnerability to power outages and their ability to meet acceptable performance criteria

set forth in The Recommended Standards for Wastewater Facilities (a.k.a. Ten States Standards). Projects

identified in this evaluation included elimination of the Martha Avenue and Fifteenth Street Pump Stations, and

improvements to alarm, telecommunication, emergency pumping, and backup power systems.

Pump station maintenance will be an ongoing activity.


Program Element 4: Sanitary Sewer System Asset Management Program

4


The Planning Team:

The City has begun, starting with this Master Plan effort, to implement a total asset management program to

better quantify and document the total scope, condition, and value of the City’s sanitary sewer system

infrastructure. Development of this comprehensive inventory of the entire system and its components will

enable the City to evaluate and prioritize rehabilitation projects based on an asset’s risk attribute. The City will

develop this risk attribute rating for all components of the system by evaluating the system infrastructure, social,

economic, and environmental impacts that could occur if a particular asset were to fail.

By applying this analytical asset management approach that considers both the likelihood of failure and

consequence of failure to individual components and the system as a whole, the City will be able to better

analyze where money should be spent and when. This effort, while substantial, will reap the City benefits by

allocating available resources at the most appropriate time. The analysis will also provide much-needed support

to the City’s continued pursuit of grant monies; as the grant funding arena is becoming increasingly competitive

and difficult to navigate without programs such as these to demonstrate the need for the funding request.

The program will allow prioritization of monies for personnel, equipment, professional services, and capital

improvements so that funding is directed in the most appropriate direction for the City to receive the optimum

return on investment. As a precursor of this program, an initial personnel and equipment budget has been

established to document the internal support that the Master Plan components will need to be implemented

effectively over the next 40 years. (See attached Vehicle Replacement Program [Figure 8] and Staffing Chart

[Figure 9]). The vehicle and equipment replacement will be scheduled according to the replacement program and

will be based on available funding.

The Master Plan has been staged to limit both rate impacts and impacts on current and proposed City staffing

levels. A review of the proposed projects and upgrades throughout the system indicates that the staffing levels

will need to only increase from the existing 18 full-time and 1-part time staff to 20 full-time employees. This

staffing increase will allow the DPW to be more proactive with maintenance activities (thereby extending the

useful life of equipment and delaying more costly capital improvements) and cover the recently taken-over

duties of billing by DPW.

To complete the sewer system asset management program, the City will have to undertake a thorough

investigation of the remaining collection system not included in the Interceptor Study. Due to the limited amount

of time and money available, this step could not be completed prior to NYSDEC submittal of the Master Plan.

However, the City will utilize the same procedures outlined in the Interceptor portion of this Master Plan on the

remainder of the collection system. The City will work diligently to complete the remaining asset management

program in a timely manner.

ReplacementDate

34 2002 GMC Sewer Flusher 1GDP7H1C52J500309 K20541 $95,000 201235 1993 Ford Vac-Con Vactor 1FDYR82E2PVA13826 L13342 $200,000 200749 1997 Ford F250 4x4 3FTHF26H1VMA23768 L13391 $25,000 200869 1988 Sullair Air Compr. 004-98032GHH $20,000 200816 2002 Chevrolet Impala 2G1WF55K329323217 L88888 $22,000 201017 1986 Chevy Van 1GCHP32J3G3331363 K41306 $30,000 200618 2002 Dodge Ram Pickup 3B7KF26Z62M309223 K41256 $23,960 2012192021 1964 International Tractor 5345 L13360 $25,000 200822 Trailer Homemade A327631 L13343 $7,500 201123 1996 Yale Forklift E177B12985T $15,000 20162425

Figure 8Department of Public Works

Vehicle Replacement Program


Plate # $ AmountNo. Year Make Serial Number


Position Pay Grade Position Pay Grade Position Pay Grade Position Pay Grade Position Pay Grade Position Pay GradeSupervisor 24 Foreman 14 Supervisor 24 Foreman 14 Supervisor 24 Foreman 14Princ. Acct.

Clerk 12 Main. Worker 9Princ. Acct.

Clerk 12Main.

Worker 9Princ. Acct.

Clerk 12Main.

Worker 9

Pt. Typist PT $9.98/hr Main. Worker 9 Acct. Clerk Typist 7Main.

Worker 9Acct. Clerk Typist 7

Main. Worker 9

Main. Worker 9 Main. Worker 9Main.

Worker 9

Main. Worker 9 Main. Worker 9Main.

Worker 9

Position Pay Grade Main. Worker 9 Position Pay Grade Main. Worker 9 Position Pay GradeMain.

Worker 9

Senior Operator 15

Senior Operator 15

Senior Operator 15

Position Pay Grade Position Pay Grade Position Pay Grade Position Pay Grade Position Pay Grade Position Pay Grade

WWTF Operator 11

Assist. Supervisor 15

WWTF Operator 11


WWTF Operator 11


Shift Operator 11

Sen. Str/Swr Main. 12

Shift Operator 11


Shift Operator 11


Assistant Operator 9

Str/Swr Main. III 11





Operator Trainee 7

Str/Swr Main. II 9

Operator Trainee 7

Str/Swr Main. II 9

Operator Trainee 7

Str/Swr Main. II 9

Str/Swr Main. II 9

Str/Swr Main. II 9

Str/Swr Main. II 9

Str/Swr Main. II 9

Collection System - Crew

POTW Senior Operator

Sewer Operations WWTF & Pump Station Maintenance


WWTF Maintenance - Foreman & Crew

Laboratory - Foreman & Crew


Laboratory

POTW

Sewer Operations

Collection System Maintenance

WWTF & Pump Station Maintenance



2005-06 Staffing Level

SEWER FUND


Chief STP Operator

SEWER FUND



Chief STP Operator


Chief STP Operator



Staffing Chart

WWTF & Pump Station Maintenance

POTW

Collection System MaintenanceLaboratory

Sewer Operations

POTW

Collection System MaintenanceLaboratory

SEWER FUND

Figure 9Department of Public Works




Program Element 5: Storm Sewer Asset Management Program

5


The Planning Team:

Similar to the steps and benefits outlined in Sanitary Sewer Asset Management Program, the City of Olean is in

the process of implementing a Storm Sewer Asset Management Program. The first phase of this program will be

composed of selected components of Phase III and IV of the inflow reduction program, a storm system needs

study, the subsequent improvement projects defined by that study, and ongoing investigation and maintenance.

The City intends to proceed with selected aspects of the Phase III and IV catch basin separation work using its

own forces. The work consists of construction of selected new storm sewers, select catch basin separation, and

additional CCTV inspection and repair projects. As shown on the cash flow schedule, these selected projects

would be implemented over a multi-year period. If during that period of time it is determined that additional

wastewater volume reduction is not needed for permit compliance as a result of the implementation of the other

major program elements of the Master Plan (e.g., treatment plant, interceptor, and pump station improvements,

and the Sewer System Asset Management Program), the City may elect not to pursue further storm sewer

improvements at that time. The Catch Basin Separation Summary Report (Volume 2) provides additional detail

on the catch basin separation work completed to date.

As part of this Master Plan effort, the impact of the City’s three designed storm to sanitary overflows on SPDES

permit compliance at the plant was assessed. The City of Olean’s collection system includes three designed

overflows (located on 4th, 8th and 14th Streets), installed by the United States Army Corps of Engineers in 1973

as a part of the flood control program. The program was undertaken to protect City properties from flooding

during periods of high water levels in the Allegheny River. After a review of previous studies and more recent

WWTP flow, rainfall, and river stage data, it was determined that these overflows are unlikely to be routinely

contributing flow to the WWTP, and therefore further evaluation and reconstruction of the locations to address

SPDES compliance issues at the WWTP is not recommended at this time. The Storm to Sanitary Overflow

Summary Report (Volume 2) provides additional detail on this evaluation.

The proposed storm sewer system needs study would be composed primarily of stormwater pump station and

Two Mile Creek storm capacity studies. The needs study will likely lead to implementation of additional storm

sewer improvement projects if they are shown to improve SPDES compliance at the plant.

The Master Plan Framework (Figure 1) indicates the precedence of these programs relative to the other

components. As these are less likely to directly influence SPDES compliance, they generally have been staged

later in the program. However, storm sewer maintenance and investigation will be ongoing activities.


Program Element 6: Sewer Use Ordinance Enforcement

6


The Planning Team:

The City issued a policy statement in 2004 that reasserted the need for the Sewer Use Ordinance (SUO) to be

strongly enforced. The City also prepared two mailings regarding the City’s intent to vigorously pursue SUO

enforcement. In a continuation of these activities, the City intends to purse a Sewer Use Ordinance Enforcement

program that is composed of three main components:

Notification

Education

Enforcement

Each of these components will be broad and consistent throughout the service area and will primarily include use

of hardcopy notices sent along with sewer bills or delivered door-to-door to all City residents. The notices will

include educational information regarding the impact of infiltration and inflow (I/I), information on the City’s goal

of reducing inflow sources, the benefits of reducing inflow, and specific reduction measures. The City has made

an investment in new billing and printing equipment to specifically facilitate distribution of these notices.

The primary inflow sources that will be noted as candidates for disconnection and/or redirection are roof drains

and basement sump pumps. The City has already begun this work both City-wide and on a targeted basis from

earlier smoke testing observations. The City intends to continue these efforts in the future.

Enforcement will include specific requirements in the hardcopy notice that property owners need to follow to

disconnect and/or redirect illegal sources. A specific enforcement schedule will be included for actual inflow

reduction implementation and verification through a visual survey conducted by the City, and survey information

voluntarily provided by property owners. The notice will include guidance information for inflow redirection

procedures should property owners elect to perform the necessary modifications themselves, as well as contact

information for a list of qualified contractors that can be utilized. Information will be included to remind property

owners that they need to periodically check to make sure that redirected water is infiltrating and is not

contributing to other surface water problems.

Costs for roof drain and basement sump pump redirections will initially be the responsibility of the property

owner. However, the City is evaluating creative funding and rebate options that may offset the costs to residents

for redirecting their inflow sources and provide incentive for property owners to participate in voluntary

redirection programs. Alternatively, the City is evaluating a new City ordinance that would include an additional

assessment for all property owners to cover I/I reduction costs. Property owners would be able to petition the

City for a waiver of this assessment if they agree to allow the City to inspect their property and confirm that

sump pumps and roof leaders are not connected to the sanitary system. Implementation of this program would

be phased with an initial notification, education, and initial inspection period of one to two years and then

enforcement of the assessment.


6-2


INDEPENDENT ENVIRONMENTAL ENGINEERS, SCIENTISTS AND CONSULTANTS

Based on guidance documentation issued by the United States Environmental Protection Agency (USEPA), the

average cost for roof drain and basement sump pump redirection are $45 to $75 and $300 to $500 per home,

respectively. However, actual costs for inflow reduction are also a function of site-specific factors. As observed

on Figure 1, all three components will be initiated immediately following Master Plan approval and would be

ongoing activities.

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