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HomeMy WebLinkAboutRH2 Engineering Inc East Side Booster Pump StationAMENDMENT NUMBER 2 TO PROFESSIONAL SERVICES AGREEMENT WHEREAS, the City and RH2 Engineering, Inc. entered into a Professional Services Agreement on September 2, 2014 to provide engineering services with respect to the East Side Booster Pump Station (ESBPS) Upgrade project. NOW, THEREFORE, this agreement is amended to allow RH2 Engineering, Inc. to provide additional engineering services as described on Exhibits A and B. Scope of Work: Professional Services with respect to: hydraulic model and related analyses accommodate the Oregon Fire Station Report to document the additional Department of Health. additional capacity requirements; updates to the revisions; redesign of the ESBPS plan set to site improvements; and preparation of a Project capacity requirements for submittal to the 2. Fee: The compensation for the work is based on a Time and Material Basis not to exceed the amount of $8,589. Time of performance: The services shall be complete for the project on or before December 31, 2015. Dated this 11P day of QEf��1 2015. CITY OF PASCO: W CONSULTANT NAME: Paul X Cross 2Ef2 , APPROVED AS TO FORM: Leland B. Kerr, City Attorney Amendment No. 2 to Professional Services Agreement — RH2 Engineering, Inc. Page 1 East Side Booster Pump Station Upgrade Project at-� EXHIBIT A Scope of Work City of Pasco East Side Booster Pump Station Amendment No. 2 Out -of -scope Professional Services October 2015 Background In August 2014, the City of Pasco (City) selected RH2 Engineering, Inc., (RH2) to design improvements at the East Side Booster Pumping Station (ESBPS) to meet the current and projected demands in Zone 2 of the City's water system. As part of the 30- and 60 -percent design tasks in the original contract (Tasks 4 and 5), the City requested that RH2 evaluate multiple demand projection scenarios for Zone 2 to determine the future pumping capacity required at the ESBPS. RH2 was also required to update the Zone 2 water system hydraulic model that was originally anticipated to be performed by the City as part of another project. The demand projection analyses resulted in RH2 and the City to determining that additional capacity beyond the capacity identified in the 2010 Water System Plan (WSP) was required. This meant that RH2 would now be required to prepare and submit a project report to the Washington State Department of Health (DOH) with the final design. In March 2015, the City requested that RH2 evaluate scenarios to identify the required ESBPS capacities under multiple future demand scenarios with and without a new storage reservoir in Zone 2. Based on the results of RH2's future scenario evaluation, the City requested that RH2 prepare a preliminary design and project cost estimate for two future Zone 2 storage reservoir locations. This request required additional hydraulic analysis that was not originally anticipated, resulting in additional effort being required. In addition, the City asked RH2 to incorporate the Oregon Avenue water main improvements and Fire Station design improvements into the ESBPS agency review draft documents. These out -of - scope work items are summarized as follows: Task 1— Identifying Pump Flowrate Requirements Approach: 1.1 Determine the pump station flow requirements for the ESBPS after determining that the 1,500 -gallon -per -minute capacity improvements outlined in the 2010 WSP would not meet current needs. Task 2 — Zone 2 Water Main Updates in Hydraulic Model Approach: 2.1 Update the City's water system model in Zone 2 after the work associated with the unidirectional flushing program was behind schedule and would not be completed before the model updates were needed. 1 10/30/20151:53:06 PM \\AQ\dfs\Richt d\Dam\PSC\714109\A-P co1 Man \A- 2\PSA_SOIX'Jlmend_No.2-)-Iast Side Boosmc Pp Smtioad«a EXHIBIT A City of Pasco East Side Booster Pump Station Exhibit A — Scope of Work Out -of -scope Professional Services Amendment No. 2 Task 3 — Zone 2 Storage Memorandum Additional Costs Approach: 3.1 Provide additional services to the Zone 2 storage memorandum that included hydraulic modeling and other services in excess of the scope of work. Task 4 — Incorporate Oregon Avenue and Fire Station Designs Approach: 4.1 Change the ESBPS final design to incorporate consistency in the site design with the Oregon Avenue transportation improvements and preliminary design of an ancillary building and landscape changes at the adjacent Fire Station. Task 5 — Project Report Approach: 5.1 Prepare a project report in conformance with DOH standards to submit with the agency review draft of the ESBPS. The project report was triggered when the capacity of the project exceeded the anticipated capacity in the 2010 WSP. RH2 Deliverables: • One (1) PDF copy of agency review draft project report, submitted to the City for final review. • Two (2) hard -copy sets of agency review draft project report to DOH for review and approval. 2 10/30/151:53 PM \\eh2\dh\aichhnd\Bata\PSC\714109\A-Proj Man\A-2\PSA_S0W lsmend_No. 2-J3az1 Side Booster Pump Smfion.doa EXHIBIT B