01-10-2022 BPU RPT 03 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: JANUARY 10, 2022 SUBJECT: CONSTRUCTION OF THE OLEANDER COURT WATER MAIN REPLACEMENT AND PRESSURE REZONING PROJECT WORK ORDER NO. 2105984 IN THE AMOUNT OF $660,000 ISSUE: Consider approval of Work Order No. 2105984 in the total amount of $660,000 for all engineering, construction, paving and construction contingency costs for the Oleander Court Water Main Replacement and Pressure Rezoning Project. RECOMMENDATION: That the Board of Public Utilities approve Work Order No. 2105984 in the total amount of $660,000 for all engineering, construction, paving and construction contingency costs for the Oleander Court Water Main Replacement and Pressure Rezoning Project. BACKGROUND: Riverside Public Utilities (RPU) budgets annually for the replacement of certain high-priority water pipelines which have been determined to have reached end of life. This determination is made based on parameters such as age, material, and maintenance records. The Oleander Court Water Main Replacement and Pressure Rezoning Project is part of RPU ongoing water main replacement program to replace old and high-priority water mains. The project area consists of existing 4-inch cast iron and 2.5-inch galvanized water mains that were installed in 1958 and 1976, respectively. These pipelines currently comprise the Oleander 1300 Pressure Zone and are supplied from the Whitegates 1400 Pressure Zone via a pressure reducing valve. The existing 2.5-inch galvanized pipe lies within easements on private properties, making maintenance and repairs difficult. This project will convert the Oleander 1300 Pressure Zone to the Whitegates 1400 Pressure Zone, facilitating the abandonment of the old pipelines currently located within easements. The Oleander 1300 Pressure Zone was identified as an area of deficiency in the Integrated Water Management Plan. Based on their leak history, age, size, and maintenance limitations, these water pipelines have been identified as high priorities for replacement to enhance the reliability of the water system and enhance fire flow. In addition, by completing this project at this time, RPU has an opportunity to save on paving costs in conjunction with the Public Works Department (PW) paving project of Oleander Court and a portion of Hawarden Drive which is included in the PW Fiscal Year 2019/20