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C <br /> jJp <br /> Chevron U.S.A. <br /> Page 18 <br /> M During Dames&Moore's October 19, 1990 site visit,California Petroleum Inc. <br /> was moisture conditioning and placing compacted fill in the excavation. Twining <br /> E`= <br /> Laboratories had been contacted to perform density tests on the compacted Fill. "Keir <br /> first testing sequence occurred on October 19, 1990. On October 19, 1990, the third <br /> r monitoring well(MW-2)was uncovered and staked to prevent possible damage. The <br /> r4 sampling of the last lift of aerated soil along the northern side also occurred on <br /> this date. the sampling location is shown on Plate 13 and the analytical test results <br /> are summarized on Table XI. <br /> TABLE XI <br /> . Concentrati.ons of Petroleum Constituents in Soil <br /> (Concentrations measured in parts per million) <br /> r Date Collected: <br /> October 19, 1990 <br /> Sample <br /> Benzene Toluene Ethbnz. Xylenes T.P.H. <br /> 1 ABC <0.005 <0.005 <0.005 <0.015 <10 <br /> } Minimum <br /> Detection Limit 0.005 0.005 0.005 0.015 10 <br /> -; Legend! <br /> < - Less than T.P.H. - Total Petroleum Hydrocarbons 3 <br /> Ethbnz - Ethylbenzene n/d - Non-detected k <br /> {Cffi0 �4 <br /> 16000-250-084 <br /> } DAASEti 1•SC!GRE: <br />