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i <br /> -. <br /> Chevron U.SA. <br /> ' <br /> Page IS <br /> i <br /> The next five-day cycle of tilling was sampled on September 21, 1990 at the <br /> Vdirection of Mr.Harlan Knolls. The analytical test results of the six composited <br /> samples are shown in Table VIII and sampling locs',ions are shown on Plate 10. <br /> Concentrations of Petroleum Constituents in soil <br /> - (Concentrations measured in parts per million) <br /> — Date Collected: <br /> September 21,, 1990 <br /> Sample <br /> z-b• 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 [04 ABC ,005 <0.005 [0.005 [0.015 [10 <br /> 5 ABC [0.005 <0.005 <0.005 [0.015 <10 <br /> o ABC <br /> _ [0.005 [0.005 <0.005 <0.015 <10 <br /> <0.005 <0.005 [0.005 [0.415 [10 <br /> Minimum <br /> Detection Limit 0.005 0.005 0.005 0.015 <br /> ' 10 <br /> Le end: <br /> < ~ Less than <br /> T-P.H. - Total. Petroleum Hydrocarbons <br /> Ethbnx - Ethylbenzene n/d - Nan-detected <br /> 16000-250-044 <br /> DA\fEti d: �tL��lfa_ <br />