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W A T E R I E N E R 5 Y , L I F E RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES DATE: May 7, 2010 ITEM NO: 5 SUBJECT: CONSTRUCTION OF THE CITRUS STREET PRESSURE REDUCING VALVE (PRV) STATION PROJECT - WORK ORDER NO. 1019281 ISSUE: Consideration of the capital expenditure in the amount of$205,000 to construct the Citrus Street Pressure Reducing Valve (PRV) Station as part of the Highgrove 1120 Pressure Zone Improvements. RECOMMENDATION: That the Board of Public Utilities approve the capital expenditure in the amount of$205,000 for Work Order No. 1019281, which includes design and construction costs for the Citrus Street PRV Station Project. BACKGROUND: The Prospect PRV Station was originally constructed in 1969 and was recently abandoned due to significant corrosion on the steel inlet and outlet lines, failure of one of the valves, and its location in a high traffic area with limited access. The station served the eastern portion of the City of Riverside's (City)service area in the unincorporated community of Highgrove, consisting of approximately 501 residential and commercial customers. Service is presently provided to the area through the Highgrove PRV Station. As a result of this change,fire flow availability in the area has been marginally reduced.Therefore,this project was identified in the 2005 Water Master Plan for replacement and upsizing of the valves. In order to provide improved fire flows, increase reliability of the system, and improve worker safety relative to traffic control, staff proposes relocation of the Prospect PRV Station to Citrus Street, westerly of Iowa Avenue. Relocation of the Station will allow for dual inlet and outlet pipelines. Computer modeling of the system, including present and future anticipated peak hour and fire flow demands was used to size the pressure reducing valves. To expedite the installation of the new Citrus PRV Station to restore fire flows and allow pending development projects in the area to proceed, the Contractors Panel was used. The lowest bidder from the Contractors Panel came from Trautwein Construction, Inc. of Riverside, California, in the amount of $119,387. FISCAL IMPACT: The capital expenditure for Work Order No. 1019281 is estimated to be $205,000 which includes costs for design and construction necessary to perform the work, as summarized below: