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. Project Number: SFI-175-0204.72 <br /> Concuitant Project Number: 203-1753291 <br /> Contract Number: N46CWCO244 9 X <br /> Facility Number: 94)657 <br /> Works Order Number: D004128 <br /> Report Issue Date: April 10, 1990 <br /> Table 4c <br /> SURROGATE COMPOUND RECOVERY <br /> d4-1,2-Dichloroethane <br /> Purgeable Hydrocarbons In Soil <br /> EPA Method 8240 <br /> Recovery Acceptability Limitsl: 70- 121 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No. ug/L ug/L Recovery, % <br /> Water Blank 50 50 100 <br /> McOH Blank 50 53 106 <br /> 01 50 51 102 <br /> 02 50 52 104 <br /> 03 50 52 104 <br /> MS 50 52 104 <br /> MSD 50 51 102 <br /> MS = Matrix spike sample <br /> MSD = Matrix spike duplicate sample <br /> 1 = Acceptability limits are derived from USEPA Contract Laboratory <br /> Program (CLP) requirements. <br /> GTEL Concord,CA Page 11 of 12 MGTEL <br /> D004128,DOC <br /> E N V 1 R O N 0 E N T A t <br /> 1A602A10RIES. INC <br />