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Chevron U.S.A. - Page 3 <br /> and total petroleum hydrocarbons as referenced to gasoline <br /> (EPA method - 8020) . Samples were composited by the . <br /> analytical laboratory prior to chemical analysis. <br /> The soil samples were obtained from varying depths and <br /> locations in the soil aeration pile at the subject property. <br /> The results of these analyses have been summarized on Table <br /> I, as follows: <br /> TABLE I <br /> Concentration of Petroleum Constituents in Soil <br /> (Concentrations expressed in parts per million <br /> Sample Sample <br /> I.D Type Benzene Toluene Xylenes Ethvlbenz. TPH <br /> C-1(ABC) CO n/d n/d n/d n/d n/d <br /> C-2 (ABC) CO n/d n/d n/d n/d n/d <br /> C-3 (ABC) CO n/d n/d n/d n/d n/d <br /> C-4 (ABC) CO <0.5 <0. 5 <0.5 <0.5 180 <br /> C-5 (ABC) CO <0.02 <0. 02 <0. 02 <0. 02 17 <br /> C-6 (ABC) CO n/d n/d n/d n/d n/d <br /> C-7 (ABC) CO n/d n/d n/d n/d n/d <br /> C-8 (ABC) CO <0.05 0.33 0. 196 1.21 99 <br /> C-9 (ABC) -CO n/d n/d n/d n/d n/d <br /> C-10 (ABC) CO n/d n/d n/d n/d n/d <br /> C-11 (ABC) CO n/d n/d n/d n/d n/d <br /> C-12 (ABC) CO n/d n/d n/d n/d 2 . 1 <br /> Detection <br /> limits 0. 005 0. 005 0. 005 0. 005 1. 0 <br /> Legend: <br /> n/d - non-detected Ethvlbenz. - Ethylbenzene TPH - Total <br /> Petroleum Hydrocarbons < - Less than, but above Detection <br /> Limit c0 - Composite <br /> DAMES &. MOORE <br />