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q <br /> Chevron U.S.A. <br /> Page 11 <br /> Eight samples were obtained from the limits of the excavation <br /> on the south and east sides of MW-2 (DI-3) . Again, the <br /> sample locations were specified by Mr. Harlan Knoll of the <br /> San Joaquin County Environmental Health Department. The <br /> results of chemical analyses conducted on the soil samples <br /> obtained on February 23, 1990 are presented in Table II-A <br /> TABLE II-A <br /> Concentrations of Petroleum Constituents in Soil <br /> (Concentrations measured in parts per million) <br /> Sample <br /> I•D• -. Benzene Toluene Ethbnz. Xylenes T.P.H. <br /> D23-21-W.Wall n/d 0.04 n/d n/d n/d <br /> s. D23-25-E.Wall 0.03 0.05 n/d n/d n/d <br /> D13-14-E.Wall •n/d- _ n/d n/d . n/d . n/d <br /> D13718-S.Wall n/d •0.03 n/d n/d n/d <br /> D13-25-N.Wall 0.02 0.05 n/d n/d n/d <br /> D13-26-Bot n/d n/d n/d n/d 1.9 <br /> DI3-12-S.Wall n/d n/d n/d n/d n/d <br /> D13--15-N.Wall 2.4 8.7 10 49 540 <br /> Le end• <br /> r <br /> T Ethbnz. - Ethylbenzene <br /> v T.P.H. - Total Petroleum Hydrocarbons <br /> n/d - Non-detected <br /> - Total Petroleum Hydrocarbons as gasoline & diesel <br /> - DI - Dispenser Island <br /> S - Sonth, N - North, E - East, W - West, C - Center <br /> Bat - Bottom of Excavation <br /> w Wall - Excavation Sidewall <br /> < - Less than <br /> i <br /> 16000-250-044 <br /> Corrected <br /> _ E <br /> 6.. <br /> t'7z},S?a & .M1ri'.R:: <br />