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Protect Number: SFB-1754=4.72 <br /> Concultant Project Number. 203-1753291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number: 9-0557 <br /> Work Order Number: D00412a <br /> Report Issue Date: April 10, 1990 <br /> Table 3 <br /> INDEPENDENT QC CHECK SAMPLE RESULTS <br /> Purgeable Hydrocarbons in Soil <br /> EPA Method 8240 <br /> Date of Analysis: 04/06/90 <br /> Expected Result, Observed Result, Acceptability <br /> Analyte ug/L ug/L Recovery, % Limits, % <br /> Trichloroethylene 50 46 92 60-140 <br /> Carbon Tetrachloride 50 47 94 80-120 <br /> 1,1,1-Trichloroethane 50 48 96 60-140 <br /> 1,1,2-Trichloroethane 50 46 92 60-140 <br /> Vinyl Chloride 50 34 78 60-140 <br /> Benzene 50 45 90 60-140 <br /> 1,1-Dichloroethyiene 50 46 92 60-140 <br /> 1,2-Dichlorobenzene 50 45 90 60-140 <br /> Table 3a <br /> INDEPENDENT QC CHECK SAMPLE SOURCE <br /> Purgeable Hydrocarbons in Soil <br /> EPA Method 8240 <br /> Analyte Lot Number Source <br /> Trichloroethylene LA19682 PURGEABLE A SUPELCO <br /> Carbon Tetrachloride LA19682 PURGEABLE A SUPELCO <br /> 1,1,1 Trichloroethane LA18769 PURGEABLE B SUPELCO <br /> 1,1,2-Trichloroethane LA18769 PURGEABLE B SUPELCO <br /> Vinyl Chloride I A20078 PURGEABLE C SUPELCO <br /> Benzene LA18769 PURGEABLE B SUPELCO <br /> 1,1-Dichloroethyiene LA19682 PURGEABLE A SUPELCO <br /> 1,2-Dichlorobenzene LA19682 PURGEABLE A SUPELCO <br /> GTEL Concord,CA Page 8 of 12 <br /> 00 <br /> D4128,DOC IGTEL <br /> FNVI ROHM ENTAL <br /> LABORATORIES. INC <br />