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Project Number SF8-175-0204 72 <br />. Consultant Project Number 1600-250-044 <br /> Contract Number N46CWCO244-9-X <br /> Facility Number 9-6155 <br /> Work Order Number 0009524 <br /> Report Issue Date September 27, 19W <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 09/21/90 <br /> Expected Result, Observed Result, Acceptability <br /> Analyte Ug/L ug/L Recovery. % Limits, % <br /> Benzene 50 48 6 97 85-115 <br /> Toluene 50 488 98 85-115 <br /> Ethylbenzene 50 48 7 97 85-115 <br /> Xylene (total) 150 156 1 104 85-115 <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 /> C009524 OCC GTEL <br /> E NVI e o N MEN TA L <br /> ® <br /> LAEOQA10"S 'NC <br />