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Project Number SFB-175-0204 72 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N46CW00244-9-X <br /> Facility Number 9.6155 <br /> Work Order Number C010176 <br /> Report Issue Date October 10, 1990 <br /> Table 3 <br /> INDEPENDENT OC CHECK SAMPLE RESULTS <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> EPA Method 8020/8015 <br /> Date of Analysis 09/28/90 j <br /> 3 <br /> t <br /> Expected Result, Observed Result, Acceptablltty <br /> Analyte ug/L ug/L Recovery, % Limits, % <br /> Benzene 50 47 94 85-115 <br /> Toluene 50 44 88 85-115 <br /> Ethylbenzene 50 48 96 85-115 <br /> Xylene (total) 150 139 93 85-115 <br />• <br /> Table 3a <br /> INDEPENDENT OC CHECK SAMPLE SOURCE <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> EPA Method 8020/8015 <br /> Analyte Lot Number Source <br /> Benzene LA18042 Supelco <br /> Toluene LA18042 Supelco <br /> Ethylbenzene LA18042 Supelco <br /> Xylene (total) LA18042 Supelco <br /> GTEL Concord,CA Page 5 of 7 <br /> ca1o,76 Doc GTEL <br /> E N V f R O N N E 4 r A L <br /> ® LA <br /> LA50RATOVES INC <br />