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HomeMy Public PortalAboutORD13510 BILL NO. 2002-147 SPONSORED BY COUNCILMAN Groner ORDINANCE NO, AN ORDINANCE OF THE CITY OF JEFFERSON, MISSOURI, AUTHORIZING THE MAYOR AND CITY CLERK TO EXECUTE AMENDMENT NO. 2 TO AGREEMENT FOR ENGINEERING SERVICES WITH WADE AND ASSOCIATES FOR SANITARY SEWER EVALUATION SURVEY PHASE 1 STUDY AREA, BE IT ENACTED BY THE COUNCIL OF THE CITY OF JEFFERSON, MISSOURI, AS FOLLOWS: Section 1. The Mayor and City Clerk of the City of Jefferson, Missouri, are hereby authorized to execute Amendment No.2 to Agreement for Engineering Services with Wade and Associates for Sanitary Sewer Evaluation Survey Phase 1 Study Area. Section 2. The Amendment shall be substantially the same in form and content as that Amendment attached hereto as Exhibit A. Section 3, This Ordinance shall be in full force and effect from and after the date of its passage and approval. Passed: t 'l'7 Approved: _ � � t,�n f /,�• t-�" 'r� ;!'J,�/,,;�,, %�( ,tom_ esidin Officerr , g Mayor ATTEST: APPROVED AS TO FORM: City Clerk" City d&1696ior D , 155 ICi AMENDMENT NO. 2 TO AGREEMENT FOR ENGINEERING SERVICES SANI'T'ARY SEWER EVALUATION SURVEY PHASE 1 STUDY AREA Ti-iIS AMENDMENT NO. 2, made and entered into this_ I`l day of-L!Y 4,2003, between the City of Jefferson City, Missouri, hereinafter referred to as the CITY, and Wade and Associates, Inc. at 1201 Wakarusa Dr., Building D, Lawrence, Kansas 66049, hereinafter referred to as the CONSUL'T'ANT; WITNESSETI I: WHEREAS, the CITY and the CONSULTANT entered into an Agreement, dated .Lune 19. 2001, for SERVICES, set forth in the Agreement which was subsequently amended by Amendment No. 1, issued on February 18, 2002; and WHEREAS, the CITY has completed Phase 1 of the Sanitary Sewer Evaluation Survey; and WHEREAS, the CITY requires certain professional services in connection with the PROJECT, herein referred to as the SERVICES; and WHEREAS, the CONSULTANT is prepared to provide such SERVICES. NOW THEREFORE, the parties agree to the following amendments: Attachment A - SCOPE OF SERVICES Shall be amended to include the SCOPE OF WORD FOR ADDITIONAL SUPPLEMENTAL MODELING, ANALYSIS, AND REPOR'T'ING, as outlined in the attached document, ADDITIONAL ASSISTANCE& ANALYSIS, Basins 13B and 15, .Jefferson City, Missouri. This supplemental document includes a TO"I'AL FEE ESTIMATE of$76,793, which is within the total contracted amount. This Amendment No. 2 will add 180 calendar days to the contract time. IN WITNESS WHEREOF, the parties listed below have signed on the day and year shown above. CITY OF JEFFERSON WADE & ASSOCTATES, TNC. Mayor Nark G. Wade, Preeident ATrES'TED: City Clerk ADDITIONAL ASSISTANCE & ANALYSIS Basins 13B and 15 JefTerson City, Missouri GENERAL SCOPE This portion of'tile project will ill general consist of: flow data analysis, hydraulic model, cost-cl'I'cctivencss tur.►lysis, rehabilitation recommendations and report for the sanitary sewers located in the area studied, basins 1311 and 15 containing;approximately 63,000 IM of sewer:~. The CITY will conduct all field data collection and therefore provide all necessary information to the CONSULTANT. It is expected that there will be a number ol'studies, reports, design, construction and service contracts, work in the future that must be completed in order to bring these services to completion. Included Islay be services ,tad/or construction contracts For engineering, right-of'way acquisition, utility relocations, co fist rttctiott, equipment, technical assistance and guidance. The services to be performed by CONSULTANT under this proposal will likely comprise multiple phases, as stated below. Further, it is understood that (he dale of beginning, rate of progress, and the time of completion of the work to be done hereunder are essential provisions of a successful project. A. SUPPLEMENTAL MOI)F,LING, ANALYSIS, AND REPORTING Using data provided by the CITY, CONSULTANT will develop a hydraulic model, conduct a comprehensive cost-effectiveness analysis, and prepare a written report. Work Wider this suppletllcntal work will include Basins 1313, and 15 as described in the Master Plan Report (unless as otherwise directed by the CITY). 1. Project Administration CONSULTAN'T'S project manager will meet with the CITY regularly, to review progress of the program, exchange Itif"on11ation, gather supplemental data, and revise schedules. A progress sunitnary will be prepared by CONSULTANT and submitted along with C'ONSUI fANT's monthly invoice Statements. 2. Flow Data Analysis Tne CONSUL.TAN`I' will analyze all Ilow monitoring data and determination of "Q vs. i" relationships fin• up to 5 flow monitoring sites. "Q vs, i" analysis will be performed tot•both inflow and infiltration (5-year, 60-minute storm event). I'low data will be provided by CITY 3. Hydraulic Network CITY will develop a complete hydraulics network fir the study area. The network Will be created from as-built data provided by the CITY, tllcasurcments collected Irotll the previous Master Plan, anti strppler►lental control surveys conducted by the CITY."this inlilrmation will be input into Pipedreanl`' by the CITY and reviewed by CONSULTANT's project nuur►ger gin•accuracy and checking of both connectivity and ccltltilltlity. CONSULTANT will assist the CITY ill follow- s 1111 field investigations to resolve problems associated with the hydraulic network. d. Hydraulic Model Development CONSULTANT will develop a hydraulic model for the study basins. The CITY will assist the CONSULTANT in completing all continuity ehec!cs For the hydraulic network. This will include assistance in the developmlcnt ofsplit flow modeling parameters and other hydraulic elements in the collceti.nl system that arc crucial in dcvclopiug an accurate model. Field checks will likely be required to verify the final model configuration. 5. Calibrate 1/1 Database CONSULTANT will calibrate 1/1 :;ourcc flow rate; fordClccas identified, by the CITY, during field inspection activities. CONSUL:TAN'I' will import the calibrated deflect flow rates into i'ipedream((' hydraulic model. 6. Model Calibration CONSULTANT will assume primary responsibility oil►•the calibration of thc; Pipedream© hydraulic model tar an initial 5-year, 60-minute storm event with 0%, 1/1 removal. CONSULTANT will then develop a series of hydraulic modeling reports for 1/1 removal in (0'%, increments to be used ill the final cost- effectiveness analysis. 7. Wet-Weather Treatment Costs The CITY will provide treatment cost data for daily and wet-weather flow conditions. Flow criteria will be established by the CONSULTA NT anti provided to the CITY for possible future design and expansion of the present facilities. 8. Cost-Effectiveness Analysis CONSULTANT will develop a series ofcost curves for relief sewers, 1/1 elimination, and treatment vs. incremental 1/1 removal. CONSULTANT, with assistance from the CITY, will identify the optimal 1/I remlovai level ti•onl the summation of cost curves. Cost-e1'tecliveness analysis will include prelin-linary manhole and line rehabilitation schedules and the recommended private-sector 1/1 elimination schedules. 9. future Growth Considerations After completion ol'the cost-effectiveness analysis, CONSULTANT will include a future growth scenario, provided by the CITY, into the hydraulic model. If' warranted a separate set elf capacity related recommendations, for this future growth scenario, will be included in the report. 10. Fillal Report CONSULTANT will prepare a final report For the study area containing reco ill 1 lien dal lolls lot' 1/I removal and relief sewer requirements. The 1"111111 report will contain a prioritizes) listing of'iderltified I defects, Recommendations file additional structural rehabilitation will be provided. Dive(5) topics of"I Drali e ' Report will be submitted iot-CITY review. Ten (10) copies of'tile final Report will be submitted to the CITY. Ai. Continued Training The CONSULTANT will provide the CITY with hands on classroom style training for up to three people on all major components of the analysis and hydraulic model used by Wade& Associate~ to generate the reported collection system recommendations fin•basins 13B and 15. The training will be conducted tit the CITY'S Hyde Park collection system facility.