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s ! <br /> Table 1 - Chemical Analytical Data <br /> Former Unocal Facility No 0187 <br /> i <br /> 437 East Miner Avenue <br /> Stockton, California <br /> Sample Date TPHg Benzene Toluene Ethyl- Xylenes MtBE Lead <br /> ID Collected Benzene <br /> (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (Ppm) <br /> Comp-S(DR)l 3/31/99 260 1 3 3 5 3 6 16 1 7 19 <br /> i <br /> EXPLANATION. ANALYTICAL LABORATORY <br /> ppm = parts per million Sequoia Analytical EELAP # 1271) <br /> ANALYTICAL METHODS <br /> TPHg = Total petroleum hydrocarbons as gasoline according to EPA Method 5030/8015 Modified <br /> BTEX = Benzene,toluene, ethylbenzcne, and xylenes according to EPA Method 8020 <br /> MtBE = Methyl tent-butyl ether accordmg to EPA Method 8020 <br /> 240042 04 <br />