12-06-2013 BPU RPT 09 - Laserfiche WebLink

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W A T E R E N E R G Y I I F E RIVERSIDE PUBLIC UTILITIES Board Memorandum PUBLIC UTILITIES BOARD OF PUBLIC UTILITIES DATE: December 6, 2013 ITEM NO: 9 SUBJECT: MOCKINGBIRD CANYON RESERVOIR MECHANICAL EXCAVATION PROJECT — AWARD OF BID NO. 7181 ISSUES: The items for Board of Public Utilities consideration are: 1) award of a construction contract for the Mockingbird Canyon Reservoir Mechanical Excavation Project, Bid No. 7181; and 2) approve the First Amendment to the Professional Services Agreement with MNS Engineers Inc. RECOMMENDATIONS: That the Board of Public Utilities: Approve the combined capital expenditure of $1,010,000 for Work Order Nos. 1410992 and 1411000 which includes all design, California Environmental Qualities Act compliance, environmental permitting, construction, change order contingencies, construction management and inspection services for the Mockingbird Canyon Reservoir Mechanical Excavation Project, Bid No. 7181; 2. Award a construction contract for the Mockingbird Canyon Reservoir Mechanical Excavation Project, Bid No. 7181, to the lowest responsive bidder, Jeremy Harris Construction, Inc., of Riverside, California, in the amount of $535,000; 3. Authorize the issuance of change orders to the purchase order of up to 15% of the original amount for Bid No. 7181; and 4. Approve the First Amendment to the Professional Services Agreement with MNS Engineers Inc. of Ventura, California. BACKGROUND: The Mockingbird Canyon Reservoir (Reservoir) was constructed in 1913 by the Gage Canal Company (Gage) to capture and utilize storm water flows within the Gage Canal system for irrigation and groundwater recharge. Riverside Public Utilities (RPU) acquired the Reservoir in 1965 with the acquisition of Gage. Over time, as storm events occur, sediments are transported and deposited in the Reservoir. In December 2010, Riverside experienced a major storm event which involved significant rainfall and flooding. As discovered during an investigation of the Reservoir in January 2011, the capacity of the Reservoir has substantially decreased due to significant sediment deposits. In order to comprehensively evaluate the volume of accumulated sediment and to develop a long -range maintenance plan, staff issued a Request for Proposals for engineering and surveying services. On February 17, 2012, the Board of Public Utilities approved a Professional Services Agreement (PSA) with MNS Engineers, Inc. (MNS) to provide such services. MNS completed their evaluation of the