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t� <br /> FOOTHILL <br /> NGINEERING <br /> 12793 PADDY CREEK LANE LODI. CA 95240 <br /> PH (209) 368-9381 FAX (209) 367-1163 <br /> Apnl 30, 2403 <br /> Mr Michael Infurna <br /> San Joaquin County Public Health Services IE C E Cj V/[cLL-1i DD <br /> Environmental Health Division <br /> 304 E Weber Ave Third Floor MAY 0 5 2003 <br /> Stockton, CA 95202 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Subject Connell Motor Truck Co - 2211 N Wilson Way Stockton CA 95205 <br /> Site Code 39-1304 Global ID T0607700812 <br /> RE Installation of CPT#1 to CPT#5 and Associated Soil and Water Sample Analysis <br /> Dear Mr Infurna <br /> Please find below the report covering the installation of five CPT's,on the above stated site This work <br /> was authorized under the work plan dated November 14, 2002 <br /> HISTORY OF UST REMOVAL,OVER EXCAVATION,AND PLUME DELINEATION <br /> On June 11, 1998,the three USTs on this site were removed by Jim Thorpe Oil,Inc of Lodi,California <br /> under PHS/EHD permit and oversight Asper the work plan for the removal,soil samples were extracted <br /> and analyzed for BTEX,TPHgas,TPHdiesel,and Oxygenates The analysis indicated the soil under and <br /> near the dispensers was contaminated with both gasoline and diesel The soil underneath and <br /> surrounding the three USTs was analyzed as non-detect for all compounds The tank excavation was <br /> backfilled with onsite pea gravel <br /> Over excavation of the dispenser area was started and suspended on December 10, 1998 with less than <br /> 50% of the planned work completed The excavated area was backfilled with pea-gravel and the <br /> excavated soil was stockpiled on the site Work was suspended due to the discovery of a large volume <br /> of contaminated soil found below and adjacent to the pump islands The test results from Sherwood Labs <br /> indicated that the petroleum contamination was old and highly degraded Due to the extent of the <br /> petroleum contamination,the PHS-EFID ordered a delineation of the contaminating plume and a ground <br /> water investigation <br /> 1 <br />