SR 05:036 - Laserfiche WebLink

Foothill Road. Ail three pump stations (the water tanks, pumps, piping and electrical equipment) were constructed in 1964 by the then existing Pleasanton County Township Water District (PTCWD). The District sold bonds in order to generate funds to construct these pump station improvements and the property owners whose properties' benefited by the impr0vcments paid thc assessments. In 1972, thc ?CTWD was diss01vcd and the City of Pleasanton agreed to assume the obligations of the District. Accordingly, the District's facilities, including the pumps and the waterlines, became the City's. The City has operated, maintained and made ininor improvements to each pump station since 1972, including adding the wooden buildings that protect the pump station components in 1988. However, these pump stations are now approximately 40 years old and the vast majority of the pump station components and buildings are at the end of their useful life. In 1997, the City hired a consult'mg engineering fLrm specializing in water system facility design to evaluate the existing water facilities constructed by the PTCWD on Santos Ranch Road, along Pleasanton Ridge and Kilkare Road. These facilities serve approximately 300 properties in and outside the City limits. The facilities include three booster pump stations including six pumps, five water storage tanks, and several miles of water mains ranging in size from 6 to 12 inches in diameter. The majority of the water lines and tanks were also constructed in 1964. The consultant's report recommended the replacement of the pump station piping, electrical equipment, mechanical equipment, portions of the pump station building, the recoating of three of the five water tanks and the installation of cathodic protection to the water mains to guard against pipe corrosion. The City has phased this refurbishment and has completed the recoating of the three water tanks and has completed the installation of the cathodic protection for the existing water mains and the replacement of sections of pipe at the pipe bends along Santos Ranch Road. Remaining, is the replacement of the three pump stations including the six pumps and related mechanical and electrical equipment. The pump station portion of this overall improvement project was funded in FY 1999-00 ($100,000), FY 2000-01 ($450,000), and 2001-02 ($450,000), based on an estimate of the project scope obtained from the original consultant engineer's report, dated February 1998. This report only provided a preliminary list of the pump stations' components without the benefit of a full engineering assessment and design of the project. In addition, and more importantly, the original estimate included only a partial rehabilitation of the pumping stations. Recent Design and Construction Bid Efforts On March 18, 2003 the City Council awarded a consultant contract to Tetra Tech Inc. to prepare design plans and specifications for the Santos Ranch Road Pump Station improvements. The project scope had significantly changed since the 1998 report SR 05:036 Page 2 of 6