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W A i E H N RIVERSIDE PUBLIC UTILITIES lose Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: March 4, 2011 ITEM NO: 6 SUBJECT_ CONSTRUCTION OF THE MAGNOLIA AVENUE 12-INCH WATER DISTRIBUTION MAIN REPLACEMENT PROJECT— BID No. 6928,WORK ORDER NO. 1103510 ISSUE: That the Board of Public Utilities consider approval of the capital expenditure in the amount of$1,244,000 to construct the Magnolia Avenue 12-Inch Water Distribution Main Replacement Project, Bid No. 6928. RECOMMENDATIONS: That the Board of Public Utilities: 1. Approve the capital expenditure of$1,244,400 for Work Order 1103510, which includes all design, construction,change order contingencies, construction management and inspection for the Magnolia Avenue12-Inch Water Distribution Main Replacement Project, Bid No. 6928; 2. Authorize staff to issue changes orders in an amount not to exceed 15% of the contract amount for the Magnolia Avenue 12-Inch Water Distribution Main Replacement Project, Bid No. 6928; and 3. Approve and recommend that the City Council award a contract for the construction of the Magnolia Avenue 12-Inch Water Distribution Main Replacement Project, Bid No.6928,to the lowest responsive bidder, T.A. Rivard, Inc., of Riverside, California, in the amount of$794,012. BACKGROUND: The work will be part of the Riverside Public Utilities Department's (RPU) ongoing water main replacement program to replace aging and undersized water mains and improve fire protection. A reliable water source has always been a valuable resource to the City of Riverside. Riverside Public Utilities take a proactive approach to system maintenance by looking forward and creating a more reliable infrastructure. This approach has made Riverside a leader to other cities and utilities. In particular, the existing eight-inch Matheson Steel pipeline that is to be replaced as part of this project is 86 to 96 years old and poses a high risk of leakage which would be a waste of a valuable resource. This project is to be completed in conjunction with Public Work's Grade Separation Project which is scheduled to be complete by July 2011. The work will generally entail the construction of approximately 3,530 linear feet of 12-inch ductile iron pipe, 340 linear feet of 8-inch ductile iron pipe, nine(9)regular fire hydrants,sixty-one(6 1)domestic water services, as well as all other related fittings and appurtenances. City field forces will be perform the system connections as well as water service fie-overs. The water pipelines for this project were engineered for ductile iron pipe, as this is RPU's standard design practice for potable water distribution pipelines sized 12-inches in diameter or smaller. Public Works has requested that the entire street be slung sealed in addition to the trench resurfacing. The project is located within Magnolia Avenue between Arlington Avenue and Beatty Drive as shown on the attached site map. Funding for the slurry seal, crack seal, and stripping portion of the work will be 50% Public Utilities,and 50% Public Works.