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WORK PLAN FOR INSTALLATION OF GROUNDWATER MONITORING WELLS AT MR. ED'S <br /> MUFFLER SHOP 595 EAST 11TH STREET, TRACY, <br /> CALIFORNIA (EVAX PROJECT NO. 8239.01) <br /> SCOPE AND PURPOSE <br /> EVAX Technologies, Inc. (EVAX) proposes to install 3 monitoring wells <br /> at Mr Ed's Muffler Shop, 595 East 11th Street, Tracy, California. <br /> Messrs. Darryl Christensen and Jack Vaughn, owners of the property, <br /> have retained EVAX to install the monitoring wells. MW-1, MW-2 and MW- <br /> 3, will be constructed for the purpose of evaluating possible impact of <br /> groundwater by petroleum hydrocarbon products. <br /> SITE CONDITIONS <br /> The site is located at 595 _East 11th Street in Tracy, San Joaquin <br /> County, California. The -"shallow-groundwater level is currently at a <br /> depth of approximately 11 feet below ground surface. The attached Site <br /> Plan, Figure 1 shows pertinent features of the site. <br /> In January 1990, 4 underground storage tanks (USTs) that were used to <br /> . §tore gasoline -were_-excavated and removed from the -site. Laboratory <br /> analysis of soil and groundwater samples taken from the tank excavation <br /> at the time, indicated the presence of soils impacted by gasoline <br /> products. <br /> WELL PERMITS <br /> EVAX will secure well permits from the San Joaquin County Environmental <br /> Health Division (SJCEHO) and follow Regional Water Quality Control <br /> Board (RWQCB) guidelines for installation and sampling of groundwater <br /> monitoring wells. In addition, EVAX will examine public files at the <br /> SJCEHD to review files on the site. Prior to- well installation, -EVAX <br /> will -prepare a Site Safety- Plan, which describes -the general safety <br /> guidelines for the proposed work. Field personnel will be briefed on <br /> the Site Safety Plan and a copy will be available at the site for <br /> reference. EVAX will also notify Underground Service Alert to locate <br /> and mark underground public utility lines. <br /> • <br />