01-09-2023 BPU RPT 07 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: JANUARY 9, 2023 SUBJECT: CHESTNUT STREET WATER MAIN REPLACEMENT PROJECT, WORK ORDER NO. 2217514 IN THE AMOUNT OF $576,000 ISSUE: Consider approving Work Order No. 2217514 in the amount of $576,000 for all engineering, construction, paving and construction contingency costs for the Chestnut Street Water Main Replacement Project. RECOMMENDATION: That the Board of Public Utilities approve Work Order No. 2217514 in the total amount of $576,000 for all engineering, construction, paving and construction contingency costs for the Chestnut Street Water Main Replacement Project. BACKGROUND: Riverside Public Utilities (RPU) budgets annually to replace high-priority water pipelines that have reached their end-of-life. An end-of-life determination is based on parameters such as pipeline age, material, and maintenance records via a Business Risk Exposure (BRE) model, which identifies high-risk water distribution pipeline segments needing replacement. The BRE model has proven valuable in identifying and prioritizing water main replacement projects and was presented on October 13, 2021, to the RPU Water Committee. This project - priority water mains. The project area consists of 4-inch Matheson Steel water pipelines installed in 1923. These pipelines have experienced five recorded leaks since 1996. Based on their leak history, age and size, these water pipelines have been ranked as a high priority for replacement to enhance the water system reliability and fire flow. DISCUSSION: The work generally entails the construction of approximately 800 linear feet of 8-inch Polyvinyl Chloride (PVCO) pipe, seventeen water services, and three system connections, along with all necessary fittings, appurtenances, and related incidental work, which will be installed according routine service tie-overs, there will be no disruption of service.