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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY , <br /> ENVIRONMENTAL HEALTH DMSION ` <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 FILE C <br /> LOLLY BOZZANO OCT 9 1998 <br /> 2891 N ARATA RD <br /> STOCKTON CA 95215 <br /> RE: THREE PALMS GROCERY Site Code: 1830 <br /> 6732 E HWY 88 <br /> STOCKTON CA 95205 <br /> San Joaquin County Public Health Services Environmental Health Division (PHS/EHD) <br /> has reviewed the Summary Report for Subsurface Investigation at the above referenced <br /> site prepared by ATC Associates, Inc. Soil and groundwater samples collected during <br /> boring work done at this site on June 18, 1998, evidence contamination. The lateral <br /> extent of the contamination has not been determined. An Additional site assessment <br /> Work Plan should be submitted to PHS/EHD to determine the lateral extent of <br /> contamination and to further evaluate groundwater conditions. The Work Plan should <br /> include the following components: <br /> 1. At least three Monitoring Wells (MWs) should be installed and screened at an <br /> interval representative of the affected groundwater. Quarterly sample collection from <br /> these MWs should be initiated after installation. Groundwater samples should be <br /> analyzed for Total Petroleum Hydrocarbons as gasoline (TPHg) by EPA Method <br /> 8015; Benzene, Toluene, Ethylbenzene and Xylene (BTEX) by EPA Method 8020, <br /> and Oxygenates by EPA Method 8260. <br /> 2. Water from the domestic well on site should be collected and analyzed using EPA <br /> Method 524.2. <br /> 3. A receptor survey of domestic, municipal, agricultural, industrial and any other wells <br /> within 2,000 feet radius of this site should be conducted. Contact the Department of <br /> Water Resources, municipal suppliers and any nearby industries to search for wells. <br /> Perform a physical search of the area to locate wells or other receptor risks. Show <br /> locations of all wells, provide any known construction details and evaluate any <br /> pumping influence with respect to the possibility of contaminant migration and public <br /> and/or environmental health threat. <br /> 4. Provide site maps, top view of site and cross section view of contaminated soil zones <br /> and proposed MW locations (show previous and existing Underground Storage Tank <br /> locations and associated piping and dispensers). <br /> A Division of San Joaquin County Hcalth Care Services <br />