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Project Number: SFB-175-0204,72 <br /> Consultant Project Number: 203-175-3291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number 9-0557 <br /> Wort Order Number: D004140 <br /> Report Issue Date; April 10, 1990 <br /> Table 3 <br /> SURROGATE COMPOUND RECOVERY <br /> Octadecane <br /> Total Petroleum Hydrocarbons as Gasoline, Diesel, and Waste Oil in Sof[ <br /> Modified EPA Method 8015 <br /> Acceptability Umitsl: 70 - 130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No. mg/Kg mg/Kg Recovery, % <br /> Blank 100 98 98 <br /> 01 100 102 102 <br /> 02 100 76 76 <br /> 01 DUP 100 95 95 <br /> MS 100 99 99 <br /> MS = Matrix Spike Sample <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 /> D004140,DOC GTELR <br /> I- EAIORATORIE5. INC <br />