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E <br /> r- <br /> i Proje=Number. SF&175-0204.72 <br /> Consultant Project Number: 16000.250.044 <br /> Contract Number: N46CWCO244.9-K <br /> Facility Number: 9-6155 <br /> r^ Work Order Number: C01083S <br /> j Report Issue Date: November 5,1990 <br /> T <br /> L.. <br /> Table 4 <br /> r SURROGATE COMPOUND RECOVERY <br /> E <br /> i <br /> Naphthalene <br /> Total Petroleum Hydrocarbons <br /> as Gasoline 1n Soil <br /> EPA Method 9015 <br /> 1 Acceptability Limits': 60-130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL Na. ug/L <br /> ug <br /> Recovery,% <br /> !._ Water Blank 204 242 121 <br /> McOH Blank 200 233 <br /> 01 200 175 88 <br /> MS 200 197 99 <br /> -_ MSD 200 120 60 <br /> MS . - Matrix Spike. - <br /> MSD"= Matrix Spike Duplicate <br /> r 1 = Acceptability limits are derived from the 99%confidence interval <br /> of all samples during the previous quarter. <br /> G T EL Concord.Ca Page 5 of 7 <br /> 0010838.DQC <br /> GTE <br /> E N T 4% . <br /> LAkCRATOPIES.rtic - <br />