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-a»P, _ _ .•°:mo-, - �� _ .�_ -s., •,ra-sa• <br /> 1 <br /> �a <br /> Y chewon U.S.A. <br /> Page 18 <br /> 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 /> - Laboratories had been contacted to perform density tests on the compacted fill. Their <br /> first testing sequence occurred on October 19, 1990. On October 19, 1990, the third <br /> monitoring well(MW-2)was uncovered and staked to prevent possible damage. The <br /> 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 %1 <br /> Concentrations of Petroleum Constituents in soil <br /> (Concentrations measured in parts per million) <br /> Date Collected: <br /> October 19, 1990 <br /> Sample <br /> I-I?- Benzene Toluene Ethbnz: F.ylenes 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.R. W Total Petroleum Hydrocarbons <br /> Et;,_jnz - Ethylbenzene n/d - Kon-detected <br /> -. 18000-250-064 <br /> rn D.as:6_� & 'M(10E.: <br />