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recommended redevelopment of the production <br />well; replacement of all four engines with a <br />newer, comparably sized natural gas engine with <br />LPG fuel for back-up; replacement of the booster <br />pumps with newer comparably sized pump <br />assemblies; replacement of the well pump; and <br />minor revisions to the building enclosures. <br />Upon approval of the Preliminary Design Report, <br />two separate contract documents were prepared <br />to carry out the recommendations from the <br />report. The first is for redevelopment of Well <br />No. 22, which included disassembly of the natural <br />gas engine, drive shaft, and right angle gear <br />drive; removal and reconditioning of the well <br />pump; light swabbing of the stainless steel well <br />casing; water quality testing; chlorination; and <br />reinstallation of pump and appurtenances. <br />The second contract document was for <br />rehabilitation of the West Garden Grove Booster <br />Pumping Facility. Additional items added into the <br />contract documents included replacement of the <br />liquid propane tank and vaporizers; replacement <br />of oil and water separators in the drain system; <br />replacement of engine cooling water piping system; <br />replacement of fuel lines; incorporation of exhaust <br />fans on building roof system; and provisions for <br />structurally reinforced openings on the roof system <br />for future removal of booster pumps. <br />Construction Management services included <br />coordination with permitting agencies, utility <br />coordination, resident engineering and <br />inspection. Psomas also served as the designer <br />on this project. <br />CLIENT: City of Garden Grove <br />YEAR COMPLETED: 2015 <br />REFERENCE: Samuel Kim 1 (714) 741-5534 <br />Westhaven Booster Pump Station <br />Garden Grove, CA <br />The City of Garden Grove's Westhaven Booster <br />Pump Station has, since 1970, pumped potable <br />water from two buried 10 MG water tanks to the <br />City's distribution system using three 150-hp <br />natural gas engine driven booster pumps. A250-hp <br />natural gas engine driven well pump delivers water <br />to the two reservoirs. The City selected Psomas <br />to design and provide construction management <br />services for a project to replace the existing <br />booster pumps and gas engines with electric <br />motors, maintaining the current pump station <br />discharge capacity, and replace the existing well <br />pump engine with an electric motor. <br />The Westhaven Pump Station is a critical facility, <br />so conversion of the station from natural gas to <br />electric power required the addition of a new <br />concrete masonry unit building next to the <br />existing pump station to house a permanent <br />emergency engine generator set and the <br />electrical panels and switchgear. The architectural <br />style of the new building was designed to match <br />the existing building, including a breezeway arch <br />between the buildings with a mansard roof. The <br />project included a variety of vault, conduit, piping, <br />valves, flow meters, controls, and instrumentation <br />replacement and repair items to update the <br />facilities and repair deficiencies. <br />CLIENT: City of Garden Grove <br />YEAR COMPLETED: 2016 <br />REFERENCE: Samuel Kim 1 (714) 741-5534 <br />RFP No. 19-118 1 On -Call Water Resources Construction Ma F4 "Pn Services I City of Santa Ana PSOMAS <br />