03-09-2020 BPU RPT 07 - Laserfiche WebLink

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W A T E R E N E R G Y I L I F E RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: MARCH 9, 2020 ITEM NO: 7 SUBJECT: WORK ORDER NO. 1912417 IN THE TOTAL AMOUNT OF $323,000 FOR CONSTRUCTION OF ROYAL PALM WATER MAIN REPLACEMENT PROJECT ISSUE: Approve Work Order No. 1912417 in the total amount of $323,000 for all design, construction, paving and construction contingency costs for the Royal Palm Water Main Replacement Project. RECOMMENDATION: That the Board of Public Utilities approve Work Order No. 1912417 in the total amount of $323,000 for all design, construction, paving and construction contingency costs for the Royal Palm Water Main Replacement Project. BACKGROUND: The Royal Palm Water Main Replacement Project is part of Riverside Public Utilities' (RPU) ongoing water main replacement program to replace old and high priority water mains. The project area consists of existing 6 -inch and 8 -inch asbestos cement water mains that were installed in 1956 and 1964, respectively. The 8 -inch segment of pipeline is located within an easement along the northeasterly edge of the Rancho Riverside Mobile Home Park. Access to this segment of pipeline is very challenging due to its location within the backyards of mobile home residents. In addition, the water meter for the mobile home park is located behind a block wall in a resident's side yard, rendering it very difficult to access and maintain. This project facilitates abandoning the segment of water pipeline within the easement and relocates the existing water meter in the public right-of-way according to RPU's current standards. These pipelines have been identified as high priority pipelines for replacement to enhance system reliability and improve fire flow capacity. This project is in line with RPU's infrastructure road map and Utility 2.0 and directly benefits RPU water customers within the vicinity of the project in terms of system reliability and improved fire protection. DISCUSSION: The work generally entails the construction of approximately 455 linear feet of 8 -inch ductile iron pipe, 10 linear feet of 6 -inch ductile iron pipe, 35 linear feet of 4 -inch ductile iron pipe, seven (7) water services, one (1) fire hydrant and three (3) system connections, along with all necessary fittings, appurtenances and related incidental work. The work also involves abandoning approximately 10,070 linear feet of 8 -inch, 6 - inch and 4 -inch old water pipelines and related facilities. Once the pipelines are abandoned, the easement