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WATER I ENERGY I LIFE RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L I C U T I I I T I F S BOARD OF PUBLIC UTILITIES DATE: February 4, 2011 ITEM NO: 7 SUBJECT: CONSTRUCTION OF THE EASTSIDE PHASE I AND MAIN STREET WATER DISTRIBUTION MAIN REPLACEMENT PROJECT— BID NO. 6911, WORK ORDER NO. 0908809 ISSUE: That the Board of Public Utilities consider approval of the capital expenditure in the amount of$2,350,000 to construct the Eastside Phase I and Main Street Water Distribution Main Replacement Project, Bid No. 6911. RECOMMENDATIONS: That the Board of Public Utilities: 1. Approve the capital expenditure of $2,350,000 for Work Order No. 0908809, which includes all design, construction, change order contingencies, construction management and inspection for the Eastside Phase I and Main Street Water Distribution Main Replacement Project, Bid No. 6911;and 2. Award a contract for the construction of the Eastside Phase I and Main Street Water Distribution Main Replacement Project, Bid No. 6911, to the lowest responsive bidder, Kana Pipeline, Inc., of Placentia, California, in the amount of$1,687,570.50. 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. In particular,the four-inch and six-inch pipelines that are to be replaced as part of this project have been identified as leaking, undersized and do not meet modern fire flow requirements. The work will generally entail the construction of approximately 12,300 linear feet of eight-inch ductile iron pipe, thirty-four (34) regular fire hydrants, two hundred fifty-five(255)domestic water services, as well as all other related fittings and appurtenances. City of Riverside (City) field forces will perform the system connections as well as water service tie-overs. The project area includes the following streets (see attached site map): 1. Fourth Street between Commerce Street and Comer Avenue 2. Fifth Street between Commerce Street and Comer Avenue 3. Park Avenue between Third Street and Mission Inn Avenue 4. Comer Avenue between Third Street and Mission Inn Avenue 5. Main Street between Strong Street and Stoddard Avenue 6. Stoddard Avenue between Fairmont Blvd and Main Street 7. Shamrock Avenue between Fairmont Blvd and Main Street Basis of Design The project adheres to RPU's adopted design criteria for network pipelines, which specifies a maximum design velocity of six feet per second at peak hour demands (Ref. 2005 Water Master Plan, Table 7-1). A 24-hour simulation was performed using H2O Map software and the Hydraulic Model produced with the 2005