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Protect Number: 5F&175-0204.72 <br /> Consultant Project Number: 203-175-3291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number: 9-0557 <br /> Work Order Number: D005371 <br /> Report Issue Date: May 16, 1990 <br /> Table 3 <br /> INDEPENDENT QC CHECK SAMPLE RESULTS <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> Date of Analysis: 05/11/90 <br /> Expected Result, Observed Result, Acceptability <br /> Analyte ug/L ug/L Recovery, % Limits, % <br /> Benzene 50 54 108 85-115 <br /> Toluene 50 48 96 85-115 <br /> Ethylbenzene 50 52 104 85-115 <br /> Xylene (total) 150 151 101 85-115 <br /> Table 3a <br /> INDEPENDENT QC 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 /> Ethyibenzene LA18042 Supelco <br /> Xylene (total) LA18042 Supelco <br /> GTEL Concord,CA Page 6 of 8 <br /> D005371.DOC E L <br /> SGT <br /> E N V I R O N M E N T A L <br /> 1A00RATORIES. INC. <br />