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Proiect Number: SM-175-0204.72 <br /> . Concultant Project Number. 203175-3291 <br /> Contract Number: N46CW00244-9-X <br /> Facility Number: 9-0557 <br /> Work Order Number: D004128 <br /> Report Issue Date: April 10, 19W <br /> Table 4a <br /> SURROGATE COMPOUND RECOVERY <br /> d8-Toluene <br /> Purgeable Hydrocarbons in Soil <br /> I=PA Method 8240 <br /> Recovery Acceptability Limitsl: 81 - 117% <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No. ug/L ug/L Recovery, % <br /> Water Blank 50 51 102 <br /> McOH Blank 50 50 100 <br /> 01 50 51 102 <br /> 02 50 50 100 <br /> 03 50 50 100 <br /> MS 50 50 1 DD <br /> MSD 50 49 98 <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 9 of 12 <br /> D004128.DOG <br /> NGTEL <br /> Q <br /> 1ABORAT0 RIES, INC <br />