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w - � <br /> 'r <br /> F <br />-1 <br /> i <br /> Chevron U.S.A. - Page 13 <br /> �nc <br /> u TABLE xxl <br /> Concentration of Petroleum Constituents it Ground {tater <br /> (Concentrations Expressed in Parts Per Billion) <br /> Sample I.D. Benzene Toluene Xvlenes <br /> Well DM-1 n/d n/d n/d <br /> - Well DM-2 n/d n/d n/d <br /> Well DM-3 n/d n/d n/d <br /> Legend: <br /> n/d - non-detected Ethbnz. - etbylbenzene less than <br /> Methods of analysis and detection limits: <br /> EDB/DBCP - Modified Method AB 1803, 0.01 pg/9 <br /> BTEX-TPH, H2O - EPA Method GC/MS ,24.2, 0.50 pg/L <br /> BTEX-Gasoline - EPA Method 8020, 0.02 pg/g <br /> TPH-Gasoline - D.O.H.S./L.U.F.T Method, 5.0 pg/g <br /> - TPH-Diesel -.•p.O.H.S./L.0:F.T. Carbon Disulfide Extraction Method, 10.0 pg/g '$ <br /> Organic Lead - State Draft L.U.F.T. Method, 1.0 mg/kg <br /> For more detailed information regarding the results of chemical analysis <br /> conducted on soil and ground water samples obtained at the subject property, <br /> please refer to the certified analytical reports and chain of custody forms which' <br /> have been included in Appendix B of this report. <br /> DAMES ;�100KE <br />