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Pro}ect Number. SF&175-0204.72 <br /> Consultant Proisct Number: 203-175-3241Contract Number: N46CWCO244-9-X <br /> Facility Number: 90657 <br /> Work Order Number: D0052W <br /> Report Issue Date: May 21, 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: 05/14/90 <br /> Expected Result, Observed Result, Acceptability <br /> Analyte ug/L ug/L Recovery, % Limits, % <br /> Benzene 50 54 108 85-115 <br /> Toluene 50 47 94 85-115 <br /> Ethylbenzene 50 51 102 85-115 <br /> Xytene (total) 150 150 100 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 /> X ene {total 1 LA18042 Supelco <br /> GTEL Concord,CA Page 5 of 7 <br /> D005259.DOC <br /> NGTELR <br /> LA 6 OR ATO RI ES. INC. <br />