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Protect Number: SF&175-0204.72 <br /> Consuftant Protect Number: 203175-3291 <br /> Contract Number: N46CWOD244-9-X <br /> Faoility Number: 9-0657 <br /> World Order Number: 0004127 <br /> Report Issue Date: April 10,1990 <br /> i <br /> Table 3 <br /> INDEPENDENT OC CHECK SAMPLE RESULTS <br /> Purge-able Aromatics in Soil <br /> MODIFIED EPA METHOD 8020 <br /> Date of Analysis: 04/02/90 <br /> Expected Result, Observed Result, Acceptability <br /> Analyte ug/L ug/L Recovery, % Limits, % <br /> Benzene 50 49 98 85-115 <br /> Toluene 50 44 88 85-115 <br /> Ethylbenzene 50 43 86 85-115 <br /> X ene total 150 134 89 85-115 <br /> Table 3a <br /> INDEPENDENT OC CHECK SAMPLE SOURCE <br /> Purgeable Aromatics in Soil <br /> MODIFIED EPA METHOD 8020 <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 4 of 6 <br /> D004127.DOC SGTEL <br /> E N V I R O N M E N T A L <br /> I_ I AIORAT 0 <br /> RIES. INC <br />