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LEE & PIERCE inc. JAN 2 3 2007 <br /> consulting engineers ENVIRONMENT HEALTH <br /> 546 ABBOTT STREET, SUITE 20 PERMIT/SERVICES <br /> SALINAS, CA 93901-4323 <br /> BILL PELICH,P.E.CIVIL <br /> JOHN LANE,P.G.,R.E.A. SALINAS(831)758-0096 <br /> LEE MARCUM FAX(831)758-1213 <br /> V <br /> January 8, 2007 <br /> V <br /> Mr. Harlin Knoll <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E. Weber Avenue,Third Floor <br /> Stockton, CA 95202-2708 <br /> V <br /> RE: Subsurface Investigation Summary Report <br /> Beneto Inc., 10842 S. Harlan Road, French Camp, CA, Site Code 1685 <br /> ` Dear Mr. Knoll, <br /> Lee&Pierce,Inc. (L&P)submits this report on behalf of Beneto Inc.to summarize the subsurface <br /> investigation conducted at the subject site. The site location in presented on Figure 1. <br /> 1. <br /> SITE HISTORY <br /> �- The site houses a Cardlock facility and dispenses diesel fuel through several dispensers. MB <br /> Environmental Geology(MBEG)performed a limited phase H investigation at the site in December <br /> 2004. MBEG drilled and logged five (5) borings and collected soil and groundwater samples to <br /> evaluate whether site operations resulted in any subsurface impacts. <br /> Soil consisted primarily of silts and clays with some sand. Groundwater was encountered at a depth <br /> of approximately 20 feet below ground surface(bgs). Soil and groundwater samples were analyzed <br /> for total petroleum hydrocarbons as diesel (TPHd) by EPA Method 8015B. Low levels of TPHd <br /> were detected in each of the borings. Table 1 presents a summary of soil and groundwater analytical <br /> results from the December 2004 investigation. Figure 2 shows the locations of soil borings GPI <br /> through GP5 advanced by MBEG. <br /> .. Based upon the results of the investigation conducted by MBEG, the San Joaquin County <br /> Environmental Health Department (SJ-EHD) requested the installation of three groundwater <br /> ` monitoring wells to determine local groundwater flow and direction and to evaluate whether <br /> groundwater has been significantly impacted beneath the site. <br /> 6. <br /> V <br />