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1�l E� F HT ILL <br /> REC � OO <br /> ry ENGINEERING <br /> NOV 4 244 12793 PADDY CREEK LANE LODI. CA 95240 <br /> PH. 0.209) 368-9381 FAX (209) 367-1163 <br /> ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> November 1, 2002 <br /> Mr. Michael Infuma <br /> San Joaquin County Public Health Service <br /> Environmental Health Division <br /> 304 E. Weber Third Floor <br /> Stockton, CA 95202 <br /> Site Code#1038 <br /> Global ID#T0607700605 <br /> Subject: Michael D. & Sharon Olivarez Property at 300 S. California St, Stockton, Ca. <br /> Monitoring Well Sampling Report <br /> Dear Mr. Infurna: <br /> Please find below the report covering third quarter monitoring activities on the above stated <br /> iproperty. <br /> THIRD QUARTER 2002 MONITORING WELL SAMPLING REPORT <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 PHSIEHD. 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 /> 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 Pian 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 /> .� On August 23, 1999, the PHS/EHD approved a work plan submitted by Foothill Engineering to <br /> install replacement wells for MW#1,MW#2, and MW#3. These wpiacement wells were installed <br /> to correct the over screen conditions of the existing monitoring wells. Also, included in this work <br /> 1 <br />