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Project Number: SFB-175-0204.72 <br /> Concultant Project Numbef. 203-175-3291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number: 9-0557 <br /> World Order Number: 0004128 <br /> Report Issue Date: April 10, 1990 <br /> Table 5 <br /> MATRIX SPIKE (MS) AND MATRIX SPIKE DUPLICATE (MSD) <br /> RECOVERY AND RELATIVE PERCENT DEVIATION (RPD) <br /> REPORT <br /> Purgeable Hydrocarbons In Soil <br /> EPA Method 8240 <br /> Date of Analysis: 04/06/94 Client ID: WO-1 <br /> Sample Spiked: D00412M1 Units: ug/Kg <br /> Sample Result Amount Added <br /> Anal a MS Result MSD Result <br /> 1,1-Dichloroethene ND 2500 2550 2800 <br /> Trichloroethene ND 2500 2300 2454 <br /> Benzene ND 2500 2350 1 2554 <br /> Toluene ND 2500 2400 2500 <br /> Chlorobenzene ND 2500 2400 2450 <br /> Accept Ility Umits1 <br /> MS, % MSD, % Maximum <br /> Analyte Recovery Recovery RPD, % RPD, % % Recovery <br /> 1,11-Dichloroethene 107 112 9 22 59-172 <br /> Trichloroethene 92 98 6 24 62-137 <br /> Benzene 94 102 8 21 66-142 <br /> Toluene 96 100 4 21 59-139 <br /> Chlorobenzene 96 98 2 21 60-133 <br /> ND = Not Detected above the statistical detection limit. <br /> 1 = Acceptability limits are derived from USEPA Contract Laboratory Program (CLP) requirements. <br /> GTEL Concord,CA Page 12 of 12 <br /> 1�00412a.DOC MGTEL <br /> EN Y I R O N M t N TAL <br /> L AtORATORIES, INC. <br />