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HomeMy WebLinkAboutCH2M Hill Wastewater Treatment Plant Control System Ugrade CH2MHILL TRANSMITTAL To: City of Oshkosh From: Mohr, Linda/MKE Church Avenue P.O. 1130 Oshkosh,WI 54093 Attn: Steve Brand Date: June 23, 2011 (-)-s-::, s, Re: We Are Sending You: Method of shipment: X Attached Under separate cover via Shop Drawings Documents Tracings Prints Specifications Catalogs Copy of letter Other: Quantity Description 3 Signed copies of Water Filtration Plant Chemical, Electrical,and Controls Systems Project agreement and insurance documentation 3 Signed copies of Wastewater Treatment Plant Control System Upgrade and Energy Efficiency Project agreement and insurance documentation .7- 22 -Zol( 171 cAv /C;42ro 141��- 2, ?Olt j 61 If the material received is not as listed, please notify us at once. _8) 411-e 4,5-*- • Remarks: (404+, auJ Copy To: 4-,RA cop (1.04-1- TRANSMITTAL_AGREEMENTS.DOCX 1 AGREEMENT THIS AGREEMENT, made on the day of Z-,--C1_75 , 2011 , by and between the CITY OF OSHKOSH, party of the first part, hereinafter referred to as CITY, and CH2M HILL Engineers, Inc. 135 S. 84th Street, Milwaukee, WI 53214, hereinafter referred to as the CONTRACTOR/CONSULTANT, WITNESSETH: That the City and the Contractor/Consultant, for the consideration hereinafter named, agree as follows: ARTICLE I. PROJECT MANAGER A. Assignment of Project Manager. The Contractor/Consultant shall assign the following individual to manage the project described in this contract: Linda Mohr. B. Changes in Project Manager. The City shall have the right to approve or disapprove of any proposed change from the individual named above as Project Manager. The City shall be provided with a resume or other information for any proposed substitute and shall be given the opportunity to interview that person prior to any proposed change. ARTICLE II. CITY REPRESENTATIVE The City shall assign the following individual to manage the project described in this contract: City of Oshkosh Wastewater Treatment Plant Control System Upgrade and Energy Efficiency Study. ARTICLE III. SCOPE OF WORK The Contractor/Consultant shall provide the services described in its proposal attached hereto and incorporated herein by reference. The Contractor/Consultant may provide additional products and/or services if such products/services are requested in writing by the Authorized Representative of the City. ARTICLE IV. CITY RESPONSIBLITIES The City shall furnish, at the Contractor/Consultant's request, such information as is needed by the Contractor/Consultant to aid in the progress of the project, providing it is reasonably obtainable from City records. To prevent any unreasonable delay in the Contractor's/Consultant's work the City will examine all reports and other documents and will make any authorizations 1 necessary to proceed with work within a reasonable time period. ARTICLE V. TIME OF COMPLETION The work to be performed under this contract shall be commenced and the work completed within the time limits specified in the General Conditions / Contractor's proposal. ARTICLE III. PAYMENT A. The Contract Sum. The City shall pay to the Contractor for the performance of the contract the sum of $125,500.00, adjusted by any changes as provided in the General Conditions, or any changes hereafter mutually agreed upon in writing by the parties hereto. B. Method of Payment. The Contractor/Consultant shall submit itemized monthly statements for services. The City shall pay the Contractor/Consultant within 30 calendar days after receipt of such statement. If any statement amount is disputed, the City may withhold payment of disputed amount and shall provide to Contractor/Consultant a statement as to the reason(s) for withholding payment. C. Additional Costs. Costs for additional services shall be negotiated and set forth in a written amendment to this agreement executed by both parties prior to proceeding with the work covered under the subject amendment. ARTICLE IV. CONTRACTOR TO HOLD CITY HARMLESS The Contractor covenants and agrees to protect and hold the City of Oshkosh harmless against all actions, claims and demands which may be to the proportionate extent caused by or result from the intentional or negligent acts of the Contractor, his agents or assigns, his employees or his subcontractors related however remotely to the performance of this Contract or be caused or result from any violation of any law or administrative regulation, and shall indemnify or refund to the City all sums including court costs, attorney fees and punitive damages which the City may be obliged or adjudged to pay on any such claims or demands within thirty (30) days of the date of the City's written demand for indemnification or refund for those actions, claim and demands caused by or resulting from intentional or negligent acts as specified in this paragraph. ARTICLE V. INSURANCE The Contractor/Consultant agrees to abide by the attached City of Oshkosh Insurance Requirements. ARTICLE VI. TERMINATION A. For Cause. If the Contractor/Consultant shall fail to fulfill in timely and proper manner any of 2 the obligations under this Agreement, the City shall have the right to terminate this Agreement by written notice to the Contractor/Consultant. In this event, the Contractor/Consultant shall be entitled to compensation for work completed to the termination date. B. For Convenience. The City may terminate this contract at any time by giving written notice to the Contractor/Consultant no later than 10 calendar days before the termination date. If the City terminates under this paragraph, then the Contractor/Consultant shall be entitled to compensation for any satisfactory work performed to the date of termination. This document and any specified attachments contain all terms and conditions of the Agreement and any alteration thereto shall be invalid unless made in writing, signed by both parties and incorporated as an amendment to this Agreement. In the Presence of: CH2M HILL Engineers, Inc. By: Allan Erickson, Vice President and Area Manager 23 t.tiv.c. 2-42// (Seal of Contractor Date if a Corporation.) CITY OF OSHKOSH s By: a.-Aferi4d1 c� �z Mark A. Rohloff, City Manager (Witness) P4-4, And: 711 (Witrless) Pamela R. Ubrig, City Clerk APPROVED: I hereby certify that the necessary provisions have been made to pay the liability which will accrue Ott«_ Ih ■ under this contract. City At orney qeW1/13 City Co pt Iler 3 EXHIBIT A INSURANCE REQUIREMENTS FOR "PROFESSIONAL LIABILITY" PROVIDERS FOR CITY OF OSHKOSH It is hereby agreed and understood that the insurance required by the City of Oshkosh is primary coverage and that any insurance or self insurance maintained by the City of Oshkosh, its officers, council members, agents, employees or authorized volunteers will not contribute to a loss. All insurance shall be in full force prior to commencing work and remain in force until the entire job is completed and the length of time that is specified, if any, in the contract or listed below whichever is longer. 1. PROFESSIONAL LIABILITY A. Limits (a) $1,000,000 each claim/$1,000,000 annual aggregate B. Must continue coverage for 2 years after final acceptance for service/job 2. GENERAL LIABILITY COVERAGE A. Commercial General Liability (a) $1,000,000 each occurrence limit (b) $1,000,000 personal injury and advertising injury (c) $2,000,000 general aggregate (d) $2,000,000 products—completed operations aggregate B. Claims made form of coverage is not acceptable. C. Insurance must include: (a) Premises and Operations Liability (b) Contractual Liability (c) Personal Injury (d) Explosion, collapse and underground coverage (e) Products/Completed Operations (f) The general aggregate must apply separately to each project/location 3. BUSINESS AUTOMOBILE COVERAGE A. $500,000 Combined Single Limit for Bodily Injury and Property Damage each accident B. Must cover liability for"Any Auto"— including Owned, Non-Owned and Hired Automobile Liability Insurance Requirements Professional Liability 3-29-06 4. WORKERS COMPENSATION AND EMPLOYERS LIABILITY— If required by Wisconsin State Statute or any Workers Compensation Statutes of a different state. A. Must carry coverage for Statutory Workers Compensation and Employers Liability limit of: $100,000 Each Accident $500,000 Disease Policy Limit $100,000 Disease— Each Employee 5. ADDITIONAL PROVISIONS *Additional Insured—On the General Liability Coverage and Business Automobile Coverage. City of Oshkosh, and its officers, council members, agents, employees, and authorized volunteers shall be Additional Insureds. *Certificates of Insurance A copy of the Certificate of Insurance must be on file with the City Clerk. *Notice NOTE: City of Oshkosh requires 30 day written notice of cancellation, non-renewal or material change in the insurance coverage. *The insurance coverage required must be provided by an insurance carrier with the "Best" rating of"A—VII" or better. All carriers shall be admitted carriers in the State of Wisconsin. INSURANCE REQUIREMENTS STREET/SIDEWALK OBSTRUCTION PERMITS/ WORK IN RIGHT-OF-WAY PERMITS 1-1-03 Insurance Requirements Professional Liability 3-29-06 /S� ® CERTIFICATE OF LIABILITY INSURANCE DATE(MM1DD/YWY) 0 06!1412011 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER,AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED,the policy(ies)must be endorsed. If SUBROGATION IS WAIVED,subject to the terms and conditions of the policy,certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). CONTACT PRODUCER NAME: MARSH USA,INC. PHONE FAX 1225 17TH STREET,SUITE 2100 (A/C.No.Extl: (A/C,No): DENVER,CO 80202-5534 E-MAIL ADDRESS: INSURER(S)AFFORDING COVERAGE NAIC# 15114-00124-GAWC-11!12 WDC CA INSURER A:Greenwich Insurance Company 22322 INSURED INSURER B:XL Specialty Insurance Co. CH2M HILL,INC. 9191 SOUTH JAMAICA STREET INSURER C: ENGLEWOOD,CO 80112 INSURER D: INSURER E: INSURER F: COVERAGES CERTIFICATE NUMBER: SEA-002196692-01 REVISION NUMBER: THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT,TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. ADDL SUBR POLICY EFF POLICY EXP ILTR TYPE OF INSURANCE INSR IfivD POLICY NUMBER (MM/DD/YYYY) (MM/DD/YYYY) UMITS GENERAL LIABILITY X EACH OCCURRENCE $ 1,500,000 A X COMMERCIAL GENERAL LIABILITY RGE5000255 05/01/2011 05/01/2012 DAMAGE PREMISES(Ea ENTED $ 1,500,000 CLAIMS-MADE X OCCUR MED EXP(Any one person) $ X $500,000 SIR PERSONAL 8 ADV INJURY $ 1,500,000 GENERAL AGGREGATE $ 5,000,000 GEN'L AGGREGATE LIMIT APPLIES PER: PRODUCTS-COMP/OP AGG $ 5,000,000 —1 POLICY JF T n LOC $ AUTOMOBILE LIABILITY X (CEOMBIINED SINGLE LIMIT 2,000,000 A X ANY AUTO RAD5000254(AOS) 05/01/2011 05/01/2012 BODILY INJURY(Per person) $ A ALL OWNED SCHEDULED RAD5000256(MA) 05/01/2011 05/01/2012 BODILY INJURY(Per accident) $ AUTOS NON-OWNED PROPERTY DAMAGE $ HIRED AUTOS AUTOS (Per accident) $ UMBRELLA UAB OCCUR EACH OCCURRENCE $ EXCESS LIAB CLAIMS-MADE AGGREGATE _$ DED RETENTION$ $ WORKERS COMPENSATION X I WC STATU- OTH- AND EMPLOYERS'LIABILITY TORY UMITS ER B ANY PROPRIETOR/PARTNER/EXECUTIVE Y I N RWD5000252(AOS) 05/01/2011 05/01/2012 EL EACH ACCIDENT $ 1,000,000 OFFICER/MEMBER EXCLUDED? N N/A B (Mandatory in NH) RWR5000253(WI) 05/01/2011 05/01/2012 E.L.DISEASE-EA EMPLOYEE $ 1,000,000 If yes,describe under 1,000,000 DESCRIPTION OF OPERATIONS below E.L.DISEASE-POLICY LIMIT $ DESCRIPTION OF OPERATIONS/LOCATIONS l VEHICLES (Attach ACORD 101,Additional Remarks Schedule,if more space is required) RE:ON-CALL MODELING SERVICES,PM:LINDA MOHR. CITY OF OSHKOSH,AND ITS OFFICERS,COUNCIL MEMBERS,AGENTS,EMPLOYEES,AND AUTHORIZED VOLUNTEERS ARE INCLUDED AS AN ADDITIONAL INSURED ON THE GENERAL LIABILITY AND AUTOMOBILE LIABILITY POLICIES AS REQUIRED BY WRITTEN CONTRACT OR AGREEMENT. COVERAGE PROVIDED BY THE ABOVE GENERAL LIABILITY AND AUTO POLICIES SHALL BE PRIMARY AND IS LIMITED TO THE LIABILITY RESULTING FROM THE NAMED INSURED'S OWNERSHIP AND/OR OPERATIONS. CERTIFICATE HOLDER CANCELLATION CITY OF OSHKOSH SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE ATTN:BRAND STEPHAN THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN 215 CHURCH AVENUE ACCORDANCE WITH THE POLICY PROVISIONS. PO BOX 1130 OSHKOSH,WI 54903-1130 AUTHORIZED REPRESENTATIVE of Marsh USA Inc. Sharon A.Hammer c✓ -�-� Q- i ^^ "E-r--) ©1988-2010 ACORD CORPORATION. All rights reserved. ACORD 25(2010/05) The ACORD name and logo are registered marks of ACORD q� ® CERTIFICATE OF LIABILITY INSURANCE DATE(/2011 YYYY) 0 06114/2011 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER.THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER,AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED,the policy(ies) must be endorsed. If SUBROGATION IS WAIVED,subject to the terms and conditions of the policy,certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). CONTACT PRODUCER NAME: MARSH USA,INC. PHONE FAX 1225 17TH STREET,SUITE 2100 (A/C.No.Ed): (A/C,No): DENVER,CO 80202-5534 E-MAIL ADDRESS: INSURER(S)AFFORDING COVERAGE NAIC# 15114-00006-PLDED-11112 WDC CA INSURER A:Zurich American Insurance Co 16535 INSURED INSURER B: CH2M HILL,INC. 9191 SOUTH JAMAICA STREET INSURER C: ENGLEWOOD,CO 80112 INSURER D: INSURER E: INSURER F: COVERAGES CERTIFICATE NUMBER: SEA-002196693-01 REVISION NUMBER:1 THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT,TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. INSR TYPE OF INSURANCE ADDL yyyD POLICY NUMBER -JMM/DDY/YYYY) (MMIDD/YYYY) UMITS LTR GENERAL LIABILr1Y EACH OCCURRENCE $ DAMAGE TO RENTED COMMERCIAL GENERAL LIABILITY PREMISES(Ea occurrence) $ CLAIMS-MADE OCCUR MED EXP(My one person) $ PERSONAL&ADV INJURY $ GENERAL AGGREGATE $ GEM_AGGREGATE LIMIT APPLIES PER: PRODUCTS-COMP/OP AGG $ 7 POLICY f IFST P1 LOC $ AUTOMOBILE LIABILITY COMBINED D SINGLE LIMIT $ ANY AUTO BODILY INJURY(Per person) $ALL OWNED — SCHEDULED BODILY INJURY(Per accident) $ AUTOS AUTOS PROPERTY DAMAGE HIRED AUTOS ^ NON-OWNED (Per accident) $ $ UMBRELLA LIAB OCCUR EACH OCCURRENCE $ EXCESS LIAB CLAIMS-MADE AGGREGATE $ DED RETENTION$ $ WORKERS COMPENSATION WC STATU- I OTH- AND EMPLOYERS'LIABILITY Y/N TORY I NITS ER ANY PROPRIETOR/PARTNER/EXECUTIVE N E. L EACH ACCIDENT $ OFFICER/MEMBER EXCLUDED? N/A (Mandatory in NH) E.L DISEASE-EA EMPLOYEE $ If yes,describe under E.L.DISEASE-POLICY LIMIT $ DESCRIPTION OF OPERATIONS below A PROFESSIONAL LIABILITY' EOC3829621-09 05/01/2011 05/01/2012 Each Claim&Total For $2,000,000 All Claims.Retention: $500,000 DESCRIPTION OF OPERATIONS/LOCATIONS 1 VEHICLES(Attach ACORD 101,Additional Remarks Schedule,If more space is required) RE:ON-CALL MODELING SERVICES,PM:LINDA MOHR. *FOR PROFESSIONAL LIABILITY COVERAGE,THE AGGREGATE LIMIT IS THE TOTAL INSURANCE AVAILABLE FOR CLAIMS PRESENTED WITHIN THE POLICY PERIOD FOR ALL OPERATIONS OF THE INSURED.THE LIMIT WILL BE REDUCED BY PAYMENTS OF INDEMNITY AND EXPENSE. CERTIFICATE HOLDER CANCELLATION CITY OF OSHKOSH SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE ATTN:BRAND STEPHAN THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN 215 CHURCH AVENUE ACCORDANCE WITH THE POLICY PROVISIONS. PO BOX 1130 OSHKOSH,WI 54903-1130 AUTHORIZED REPRESENTATIVE of Marsh USA Inc. Sharon A.Hammer ■ � Q-.7% -'�� I ' ©1988-2010 ACORD CORPORATION. All rights reserved. ACORD 25(2010105) The ACORD name and logo are registered marks of ACORD CITY OF OSHKOSH Wastewater Treatment Plant Control System Upgrade and Energy Efficiency Study Purpose The purpose of the City of Oshkosh(City)Wastewater Treatment Plant(WWTP) control system upgrade and energy efficiency study is to develop an implementation plan for needed upgrades to the control system and for energy efficiency improvements to the WWTP influent pumping and blowers systems.The study will be conducted in three tasks: Task 1-Programmable logic controllers (PLCs) and network communication upgrade Task 2-Aeration blowers energy efficiency study Task 3-Influent pumping energy efficiency study The objectives of the study are to: • Evaluate the existing systems to establish baselines for potential upgrades • Identify and evaluate candidate improvement projects • Prioritize projects on a cost/benefits basis • Develop an implementation plan for prioritized improvements • Summarize the study findings in a clear action plan that will be useful for capital improvement planning Task 1 — PLCs and Network Communication Upgrades Task 1 will be completed through a series of workshops with City staff and engineering analyses.The findings, decisions,and recommendations resulting from Task 1 will be documented in a Technical Memorandum(TM). Evaluate the Existing System CH2M HILL will conduct a kickoff meeting with City staff to confirm task goals,team expectations and schedule. During the kickoff meeting,City staff's assessment of the control system,particularly the performance and age of the plant PLCs and the communication network,will be discussed.The project team will document current apparent needs and brainstorm goals for the control system for the next 10 to 15 years. Using this input from City staff,CH2M HILL will evaluate the existing system by completing the following activities: • Review the available control system drawings,software programs and other documentation including Input/Output (I/O) lists • Review existing control system including PLCs,PLC software,Human Machine Interfaces (HMIs),personal computers and HMI software • Review data communication systems • Document age,version,and conditions of hardware and software systems;obsolescence concerns will be identified as applicable • Observe extent to which existing automated systems are actually used and the adequacy of maintenance support CH2M HILL will prepare meeting minutes and document the evaluation of the existing system to establish a baseline for identifying and evaluating potential system improvements. Operational Control Strategies CH2M HILL will facility two workshops with City staff to review the current operational control strategies for each facility at the WWTP.The purpose of these meetings is to confirm how systems actually operate,how those systems should operate and to prepare a list of operations that could be automated to improve reliability and efficiency. During these meetings,possible future changes to facility operations that may occur in the next 10—15 years will be discussed. CH2M HILL will prepare meeting minutes and document existing control strategies,and potential future operational needs,to further establish criteria for defining improvements to the PLCs and the communication network. Identify and Evaluate Improvements Based on the evaluation of the existing system and control strategies,CH2M HILL will identify potential upgrades to the WWTP PLCs and network communication system.Where appropriate,CH2M HILL will identify alternative improvements for review by the City. CH2M HILL will conduct a meeting with City staff to discuss candidate projects for further evaluation. Based on input from this meeting,CH2M HILL will prepare cost estimates, conduct cost/benefit analysis and develop an implementation plan for a short-list of 10 improvement projects that appear to provide the greatest value to the City.If appropriate,an improvement project may consist of multiple minor system upgrades.In evaluating the candidate improvement projects and their implementation,CH2M HILL will discuss with the City potential needs for additional staff training or increased skills. CH2M HILL will facilitate another meeting to discuss the results of the cost/benefit analysis,to prioritize improvements,and discuss the schedule for implementation. CH2M HILL will prepare meeting minutes and document the process of developing,evaluating and prioritizing the PLC and communication network upgrades. PLC and Control System Network Upgrade TM CH2M HILL will summarize the Task 1 analyses,decisions, and recommendations in a draft PLC and Control System Network Upgrade TM study report so the findings,recommendations, and phasing considerations are easy to use in the City's annual capital improvement planning process.CH2M HILL will meet with the City to gather the City's input on the TM.The City's review comments will be incorporated in the final TM. CH2M HILL will submit 6 copies.. Task 2 — Aeration Blowers Energy Efficiency Study The existing blower system is comprised of five 300-hp multistage centrifugal blowers,piping, instrumentation and controls. Given improved aeration basin performance resulting from the installation of fine bubble diffusers,the City has observed there are opportunities to improve operational efficiency of the blower system. Blowers are energy intensive;energy use and operating costs may be reduced by changing the size,number,or type of blower in service. Improvements in control system automation can also result in more energy efficient operations. The City is undertaking the Aeration Blowers Energy Efficiency Study to define the performance range needed to better meet current and anticipated future demands.The evaluation will consider the entire blower system including instrumentation,like dissolved air monitors and pressure monitors,and possible automatic control strategies.The evaluation will result in options for improving operations and reducing energy costs. Determine Aeration Demand A project kickoff meeting will be held to review project scope,schedule and team responsibilities. It is assumed that this task will be completed by September 2011 and the plant staff will be available to provide information and participate in meetings.This meeting will also initiate data collection and system evaluation.The range of aeration air demand will be estimated by reviewing available operating data and considering the following: • Anticipated range of plant flows • Possible changes in primary effluent BOD loading • Other changes due to current and planned construction projects Blower System Evaluation A blower system will be evaluated considering the range of aeration demands,historical record of blower performance and maintenance,and plant staff input. To meet long-term needs,the different types of blowers will also be evaluated and compared. For each type of blower CH2M HILL will prepare an estimate of the capital and operations and maintenance (0&M) costs,as well as an estimate of the simple payback and 20 year present worth.An evaluation of energy costs will be included in the O&M costs.Following these analyses,CH2M HILL will meet with the City to discuss the results and options for improvement. Following this meeting,CH2M HILL will prepare conceptual-level designs and cost estimates of the preferred improvements,including required modifications to mechanical,electrical and instrumentation and control systems. Aeration Blower Energy Efficiency Study TM CH2M HILL will prepare a draft Aeration Blower Energy Efficiency Evaluation TM summarizing the background information, engineering analyses,decisions,and cost estimates. CH2M HILL will include recommendations for improving the blower system and will meet with the City to discuss the draft TM. CH2M HILL will incorporate the City's comments in the final TM and submit 6 copies. • Task 3— Influent Pumping Energy Efficiency Study The WWTP influent pump station includes three 500-hp pumps,one 150-hp pump,and space for a fifth pump.The pumps and drives were commissioned in 1975. Based on hydraulic conditions experienced at the plant and the age of the system,the City has determined that an evaluation of the influent pump station is needed to evaluate options to improve performance, operational flexibility,and energy efficiency. The City is undertaking the Influent Pumping Energy Efficiency to comprehensively review the ability of this system to efficiently meet present and future needs.The evaluation will consider the control interface between the influent pumps and the influent gates and screens. It will also evaluate the efficiency of continued reliance on medium voltage electrical power supply. Pumping System Capacity and Performance A project kickoff meeting will be held to review project scope,schedule and team responsibilities.It is assumed that this task will be completed by September 2011 and the plant staff will be available to provide information and participate in meetings.This meeting will also initiate data collection and system evaluation.CH2M HILL will gather input from plant operations and maintenance staff.The range of influent pumping conditions will be defined by reviewing available operating data and the City's operating strategies over the entire range of flow conditions.Technical information for the major mechanical and electrical equipment (e.g., pump curves,maintenance records)will be reviewed. CH2M HILL will document a summary of the background information and draft criteria for alternative system improvements. Influent Pumping System Evaluation CH2M HILL will evaluate the influent pumping system over the range of potential operating conditions to identify opportunities to reduce energy use and costs.To provide and efficient long-term solution,different pump capacities and drives will be evaluated on the basis of estimated capital and 0&M costs. Energy savings will used to calculate the payback period on any investment in improvements.Following these analyses,CH2M HILL will meet with the City to discuss the results and possible alternatives. Following this meeting,CH2M HILL will prepare conceptual-level designs and cost estimates of the preferred improvements,including required modifications to mechanical,electrical and instrumentation and control systems. Influent Pumping Energy Efficiency Study TM CH2M HILL will prepare a draft Influent Pumping Energy Efficiency Evaluation TM summarizing the background information,engineering analyses,decisions,and cost estimates. CH2M HILL will meet with the City to discuss their input to the draft TM.CH2M HILL will incorporate the City's comments in the final TM and submit 6 copies. Compensation The level of effort and compensation for the professional engineering services associated with this scope of work is summarized in Table 1. TABLE 1 Level of Effort and Compensation Summary Activity Level of Effort Cost Task 1 —PLC and Network Upgrade 406 73,700 Task 2—Aeration Blower Energy Efficiency 145 25,000 Task 3—Influent Pumping Energy Efficiency 132 20,700 Project Management 52 6,100 TOTAL 735 125,500