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W A T E R E H E R G Y I 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: October 7, 2011 ITEM NO: 11 SUBJECT: CONSTRUCTION OF THE WHITEGATES NO. 1 BOOSTER PUMP STATION RENOVATION PROJECT, BID NO. 7009 ISSUES: That the Board of Public Utilities consider. 1) approval of a contract award for the Whitegates No. 1 Booster Pump Station Renovation Project; and 2) approval of a capital expenditure in the amount of $748,000 to complete the work. RECOMMENDATIONS: That the Board of Public Utilities: 1. Determine that the lowest bid submitted by Tennyson Pipeline Co. in the amount of$97,575 is non- responsive; 2. Award a contract for the construction of the Whitegates No. 1 Booster Pump Station Renovation Project, Bid No. 7009, to the lowest responsive bidder, Genesis Construction, of Hemet, California, in the amount of$102,777; 3. Approve the capital expenditure of $748,000 for Work Order No. 1024488, which includes all design, construction, change order contingencies, construction management and inspection services for the Whitegates No.1 Booster Pump Station Renovation Project, Bid No. 7009; and 4. Authorize the issuance of change orders to the purchase order of up to 20% of the original amount for Bid No. 7009 with such changes reported back to the Board of Public Utilities at the conclusion of the project. BACKGROUND: The Whitegates No. 1 Booster Pump Station was originally constructed in 1958. It is a subterranean reinforced concrete structure which contains three (3) pumps. This booster station plays a key role in Riverside Public Utilities' (RPU) ability to reliably deliver water to customers within the Whitegates 1400 pressure zone. Over the past few years,this booster pump station has begun to show signs of its age. The pumps have become unreliable and they leak profusely,creating ongoing maintenance challenges. Also,the presence of a high ground water table in this area causes perpetual nuisance water infiltration that requires regular dewatering. As a result, much of the equipment inside the booster station has become heavily corroded. On February 11, 2011, Tetra Tech, Inc. was hired from RPU's Consultant's Panel to perform engineering design and construction support services for the project. Tetra Tech,with input from RP staff, developed a plan for rehabilitating the booster station. The work of this project will occur in two (2) phases. Phase l will generally entail removal of the existing pumps, piping, valves and electrical equipment inside of the pump station, installation of new drainage piping, application of a formed concrete floor coating, new drainage sump pumps, and waterproofing the interior of the structure. Phase II will involve procurement and installation of new pumps, piping,electrical equipment and other miscellaneous wiring and plumbing. Staff is in the process of obtaining price quotations from several different vendors for the required equipment. Construction bids for Phase 11 will be obtained from RPU's Contractors Panel for equipment installation.