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Table 1 - Groundwater Removal and Analytical Data <br /> Tosco(Former BP Oil) Station No. 11195 <br /> 16500 South Interstate 5 <br /> Lathrop,California <br /> EXPLANATION: ANALYTICAL METHODS: <br /> ppb=parts per billion TPHg = Total Petroleum Hydrocarbons as gasoline according to EPA Method 8015 Modified <br /> ND=Not Detected Benzene,Toluene,Ethylbenzene, and Total Xylenes according to EPA Method 8020 <br /> --=Not Applicable MtBE=Methyl tertiary butyl ether according to EPA Methods 8020 or 8260 <br /> ANALYTICAL LABORATORY: <br /> Sequoia Analytical(ELAP#1271 & 12 10) <br /> 1—MtBE by EPA Method 8260. <br /> =These samples were collected from the same excavation and the two numbers were averaged for use in the MtBE removal calculations. <br /> 3—Laboratory report indicated gasoline and unidentified hydrocarbons C6-C 12. <br /> 4=Elevated detection limit. See an.alyticaI report for detection limit. <br /> s=Groundwater sample collected during quarterly monitoring and sampling. <br /> MtBE Removed(lbs.)=MtBE concentration(ppb) * gallons removed 8.3371bs/gal H2O/ 1 x 109 ppb <br /> 140193.08 3 8/28/00 <br />