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Table I - Analytical Results of Soil Samples <br /> Former Tosco(Unocal)Service Station No 5421 <br /> 7303 Pacific Avenue <br /> Stockton, California <br /> Sample Date Sample TPHg Benzene Toluene Ethyl- Xylenes MTBE MTBE TPHd O&G VOCs SVOCs <br /> Location Collected Depth Benzene by 8020 by 8260 <br /> and ID (feet) (ppm) (RPM) (ppm) (ppm) (ppm) __(_ppm) (ppm) (ppm) (ppb) (ppb) (ppm) <br /> EXPLANATION- ANALYTICAL METHODS <br /> ppm = parts per million TPHg = Total Petroleum Hydrocarbons as gasoline according to EPA Method 8015 Modified <br /> ND=None of the analytes detected TPHd = Total Petroleum Hydrocarbons as diesel according to EPA Method 8015 Modified <br /> --=Not applicabletanalysis not requested MTBE=Methyl tertiary butyl ether according to EPA Methods 8020 and 8260 <br /> O&G = Total Oil and Grease according to Standard Methods 5520E&F <br /> VOCs = Volatile organic compounds according to EPA Method 8240 <br /> ANALYTICAL LABORATORY SVOCs = Semi-volatile organic compounds according to EPA Method 8270 <br /> Sequoia Analytical(ELAP#1210 and 127 1) metals=EPA Method 6010 <br /> i Also analyzed for ethanol,TBA,DIPE,ETBE and TAME All constituents were ND <br /> 2 Also analyzed for ethanol, TBA,DIPE,ETBE and TAME All constituents were ND" <br /> 3 All analytes reported as none detected Refer to laboratory report for detection limits <br /> All analytes reported as none detect except for benzene(6 4 ppm),toluene(83 ppm),ethylbenzene(24 ppm)and xylenes(160 ppm) <br /> 3 Laboaratory report indicates unidentified hydrocarbon C6-C8 <br /> 6 Laboraotry report indicates unidentified hydrocarbon C4-C24 <br /> Laboratory report indicates weathered gas C6-C12 <br /> s Detection limit raised Refer to laboratory report <br /> I <br /> 14010 � s <br /> 612/98 <br />