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Project Number. $FS 175-0204.72 <br /> Consultant Project Number: 20.3-175-3291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number: 9-0557 <br /> Worb Order Number: D004130 <br /> Report Issue Date: April 10. 1990 <br /> Table 3 <br /> SURROGATE COMPOUND RECOVERY <br /> Dibromochloropropane <br /> Ethylene Dibromide in Soil <br /> Modified EPA Method 504 <br /> Acceptability Limitsl : 70- 130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No. mg/Kg mg/Kg Recovery, % <br /> Blank 0.2 0.16 80 <br /> 01 0.2 0.16 BO <br /> 02 0.2 0.14 70 <br /> 03 0.2 0.17 86 <br /> 04 0.2 0.15 74 <br /> 05 0.2 0.14 70 <br /> 06 0.2 0.14 70 <br /> 07 02 0.17 85 <br /> 07-DUP 0.2 0.18 92 <br /> MS 0.2 0.14 70 <br /> MS = Matrix Spike <br /> 1 = Acceptability limits are derived from the 99% confidence interval <br /> of all samples during the previous quarter. <br /> GTEL Concord,CA Page 4 of 5 <br /> D404130.DOC MGTEL <br /> f N V I R ON M E N TAL <br /> lAlORATORIES. INC <br />