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c <br /> Chevron U.S.A. <br /> Page 10 <br /> TABLE I-C <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 /> D13-29-N.C.Bot n/d n/d n/d n/d n/d* <br /> D13-13-N.E.Wall n/d n/d n/d 0. 1 8** <br /> DI3-17-C.Wall 0.58 10 4 . 6 23 490** <br /> D12/3-17-N.W.Bot n/d n/d n/d n/d n/d* <br /> DI3-30-N.W.Bot n/d n/d n/d n/d n/d* <br /> D13-27-N.W.Wall n/d n/d n/d n/d n/d* <br /> D13-25-N.E.Wall n/d n/d n/d n/d n/d* <br /> Legend• <br /> Ethbnz. - Ethylbenzene <br /> T.P.H. - Total Petroleum Hydrocarbons <br /> n/d - Non-detected <br /> * -- Total Petroleum Hydrocarbons as gasoline & diesel <br /> ** - Total Petroleum Hydrocarbons as gasoline <br /> (Total Petroleum Hydrocarbons as diesel = n/d) <br /> DI - Dispenser Island <br /> S - South, N - North, E - East, W - West, C - Center <br /> Bot - Bottom of Excavation <br /> Wall -- Excavation Sidewall <br /> < - Less than <br /> The locations of all samples presented in Tables I-B and <br /> I-C are presented on Plate 4 . Certified Analytical Reports <br /> are included in Appendix A. <br /> Excavation activities were temporarily ceased on January <br /> 31, 1990. On February 19, 1990 activity at the site was <br /> resumed. "Clean" soils stockpiled during the initial <br /> excavation were placed as backfill in the bottom of the pit <br /> (see Section 5.2) Excavation of soil on the south east side <br /> of MW-2 (DI-3) commenced on February 22, 1990 (Plate 5) . <br /> 16000-250-044 <br /> Corrected <br /> D�MLE & <br />