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Chevron U SA <br /> Page 14 • <br /> Soils were again sampled on September 14, 1990 from the surface of the tilled <br /> soils at six locations (Plate 9) as directed by Mr Harlan Knolls These results are <br /> shown to Table VII. <br /> TABLE VII <br /> Concentrations of Petroleum Constituents in soil <br /> (Concentrations measured in parts per million) <br /> Date Collected: <br /> September 14, 1990 <br /> Sample <br /> Y.D. Benzene Toluene Ethbnz. Xylenes T.P.H. <br /> 1 ABC <0.005 <0. 005 <0. 005 <0. 015 <10 <br /> 2 ABC <0. 005 <0. 005 <0. 005 <0. 015 <10 <br /> 3 ABC <0 . 005 <0 .005 <0. 005 <0. 015 <10 <br /> 4 ABC <0. 005 <0 . 005 <0. 005 <0. 015 <10 • <br /> 5 ABC <0. 005 <0.005 <0. 005 <0. 015 <10 <br /> 6 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 <br /> Ethbnz - Ethylbenzene n/d - Non-detected <br /> 16000-250-044 • <br /> D4,tEs & MOORE <br />