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FOOTHILL <br /> ENGINEERING <br /> 12793 PADDY CREEK LANE LODI, CA 95240 <br /> PH. <209> 368-9381 FAX (209) 367-1163 <br /> E CEVED <br /> ,IAN 1 9 mm <br /> ENVIRONMENT HEALTH <br /> RERMIT/SEWCES January 18, 2005 <br /> Mr. Michael Infurna <br /> San Joaquin County Public Health Service <br /> Environmental Health Department <br /> 304 E. Weber Third Floor <br /> Stockton, CA 95202 Site Code #1038 <br /> Global ID #T0607700605 <br /> Subject: Michael D. & Sharon Olivarez Property at 300 S. California St. Stockton, Ca. <br /> Fourth Quarter Site Monitoring Event, and CPT#7 <br /> Dear Mr. Infurna: <br /> Please find below the report covering CPT#7 and the fourth quarter site monitoring activities on the <br /> • above stated property. <br /> FOURTH QUARTER 2004 MONITORING WELL SAMPLING REPORT AND <br /> CPT#7 TEST RESULTS <br /> Site History <br /> Five fuel USTs and one used motor oil tank were removed by Jim Thorpe Oil in November 1992 <br /> under a permit from the PHS/EHD. Soil samples taken from under the USTs and the dispensing <br /> equipment indicated the presence of hydrocarbons. Spoil from the excavation was found to contain <br /> hydrocarbon contamination. <br /> The Clearwater Group submitted a work plan to install three soil borings with monitoring wells <br /> constructed in the same boring. The work described in the Clearwater Work Plan was completed <br /> in March of 1995. <br /> The excavation for the removal of the USTs was backfilled by Jim Thorpe Oil in April 1996. The <br /> excavation spoil was used for backfill material. <br /> Foothill Engineering was requested by the owner to sample the three monitoring wells that were <br /> installed by Clearwater at various times and the analysis of those samples is attached. Monitoring <br /> wells'MW-1 and MW-2 continue to contain high levels of gasoline contamination.MW-3 has much <br /> lower levels of gasoline contamination (see a recap sheet attached). <br /> 1 <br />