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i 5 r _ rf� r-SG i :'F•`.r- . t .ter_ _ N.r...r-. w -«... <br /> Pour selected soil samples from the product tank area were analyzed <br /> by HEST Laboratories, a state certified laboratory, for TAH as <br /> gasoline by.modifisd EPA Method 8015 (purge and trap for gasoline) <br /> _ and for V= by EPA Method 8020. Five selected samples frau the <br /> waste oil tank area Vere analyzed for total oil cad grease (TOG),by <br /> EPA Method 418.1 and for halogenated volatile organics by EPA <br /> Method 8010. <br /> Table 1 sumarizes the results of the chemical analyses of the soil <br /> samples. Copies of the laboratory reports are included in Appendix <br /> 8 with the Chain-of-Custody Records. <br /> TABLE 1 <br /> RESULTS OF LABORATORY ANALYSES OF SOIL SAMALEs <br /> Toyota TOM <br /> Stockton, California <br /> Boring/ PRODUCTTANX <br /> Ethyl- Total <br /> Depth TPH Benzene Toluene benzene xylenes <br /> - TH-1 3011 <0.3 <0.005 <0.005 40.005 40.005 <br /> TH-2 10" %2s00 0.53 0.46 0.44 19 <br /> 201 <0.5 <0.005 <0.005 <0.005 <0.005 <br /> „-1 TH-3 20* <0.5 <0.005 <0.005 <0.005 <0.005 <br /> Boring/ WASTE OIL TANK <br /> Depth TOG PCE TCA E <br /> TH-4 150 4700S <br /> 0.7o 0.061 # i' <br /> -- 25** <5 <0.001 <0.001 <br /> TH-5 15' 2700 0.58 0.041 <br /> Z0,* <S <0.001 <0.001 # <br /> TH-6 15' <5 <0.001 <0.001 f <br /> ;. Results in parts par million <br /> TPH - Total petroleum hydrocarbons as gasoline <br /> TOG - Total oil and grease s <br /> PCE - Tetrachloroethene c <br /> TCA - 1,1,1-Trichloroethane <br /> -- < - Lass than the detection limit for the analytical <br /> methods used <br /> ► reorce.•:ve <br /> �. d <br /> i <br /> r <br />