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W R I E k E N E R G Y L l f E RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L I C U T I L i T I E 5 BOARD OF PUBLIC UTILITIES DATE: February 5, 2010 ITEM NO: 5 SUBJECT: PALMYRITA FILL LINE REPLACEMENT PROJECT ISSUE: Consideration of a capital expenditure of $90,000 and award of a contract for the procurement and installation of carbon fill lines for the 15 vessels at the Palmyrita Treatment Plant. RECOMMENDATIONS: That the Board of Public Utilities: 1. Approve the capital expenditure of $90,000 for Work Order No. 1019146 which is for the procurement and installation of carbon fill lines at Palmyrita; and 2. Award a contract for the purchase and installation of carbon fill lines at Palmyrita to Calgon Carbon Corporation of Pittsburgh, PA, in the amount of$81,423.75, which includes tax. BACKGROUND: Riverside Public Utilities (RPU)Water Division operates the Palmyrita Water Treatment Facility(Palmyrita), which treats up to 16.2 million gallons per day (MGD) of well water from the Riverside South Basin via 15 vessels, each holding 10 tons of carbon. This treatment plant is operated under an Agreement with Shell, et al to remove 1,2-dibromo-3-chloropropane(DBCP)from the groundwater. Under this Agreement,the City is required to maintain and repair the treatment plant. Each vessel has a 4-inch diameter, stainless-steel carbon fill line to facilitate the loading of fresh carbon and the removal of spent carbon from the vessels. On occasion,the vessels have been used to circulate high pH water to treat the carbon, which is also known as a caustic wash. Over time, the caustic washes have degraded the stainless steel fill lines and the vessels have developed small leaks,which in turn have created a nuisance and a slip hazard at the plant, as well as a potential breach into the treatment system. This project is to remove and replace the carbon fill lines and their appurtenances at the Palmyrita Treatment Plant. Section 602 of City Resolution No. 21182 provides that certain supplies, equipment, and materials are determined to be peculiar to the needs of the City's Public Utilities Department and may, if it appears to the City's Purchasing Services Manager to be in the best interest of overall economy and efficiency of the City to do so and is within existing budget authorization, be acquired by open market procurement or negotiations, regardless of their estimated procurement expenditure amounts. "Pipe and Pipe Fittings" is included within that list. Accordingly, with the approval of the City's Purchasing Services Manager, staff used open market procurement to receive bids from five suppliers. Calgon Carbon Corporation provided the lowest bid to supply and install the carbon fill lines. The bidding results, including taxes, are shown below: