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WATER ENERGY LIFE <br />CITY OF <br />RIVERSIDE <br />lag <br />PUBLIC UTILITIES <br />RIVERSIDE PUBLIC UTILITIES <br />Board Memorandum <br />BOARD OF PUBLIC UTILITIES <br />DATE: FEBRUARY 12, 2024 <br />SUBJECT: CONSTRUCTION OF THE GARFIELD AND OVERLAND WATER MAIN <br />REPLACEMENT PROJECT (PHASE III) IN THE AMOUNT OF $1,576,000 — <br />WORK ORDER NO. 2104923 <br />ISSUE: <br />Consider approval of Work Order No. 2104923 in the total amount of $1,576,000 for all <br />engineering, construction, paving and construction contingency costs for the Garfield and <br />Overland Water Main Replacement Project (Phase III). <br />RECOMMENDATION: <br />That the Board of Public Utilities approve Work Order No. 2104923 in the total amount of <br />$1,576,000 for all engineering, construction, paving and construction contingency costs for the <br />Garfield and Overland Water Main Replacement Project (Phase III). <br />BACKGROUND: <br />Water Division staff budgets and schedules the replacement of water distribution pipelines <br />annually based on several factors via a Business Risk Exposure (BRE) model that considers <br />pipeline age, material, maintenance records, and the criticality of each pipeline segment of the <br />water distribution system. The BRE model has proven valuable in identifying and prioritizing water <br />main replacement projects. Water staff presented the use and functionality of the BRE to the <br />Board of Public Utilities Water Committee on October 13, 2021. <br />This project is part of an ongoing water main replacement program to replace old and high-priority <br />water mains. The project area consists of 6 -inch cast iron water pipelines installed in 1955. These <br />pipelines have experienced eight reported leaks, of which seven have occurred since 2008. These <br />water pipelines rank high for replacement based on leak history, age, material, and size. <br />Replacing these pipelines ensures continued water system reliability. <br />DISCUSSION: <br />The work generally entails the construction of approximately 3,100 linear feet of 8 -inch Molecularly <br />Oriented Polyvinyl Chloride (PVCO) pipeline, eighty-three water services, six fire hydrants, and <br />six system connections, along with all necessary fittings, appurtenances, and related incidental <br />work, which will be installed according to RPU's current standards. The Water Division's field <br />