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L _ Fir <br /> �? Proiect Number: SFB-175-0204,72 <br /> �. Consultant Project Number; 16000.250044 <br /> Contract Number: N46MVCO244-9-X <br /> € Facility Number: 9-5155 <br /> 'Mork Order Number: Co10176 <br /> Report Issue Cate: October 10,1990 <br /> Table 4 <br /> II: SURROGATE COMPOUND RECOVERY <br /> {`' Naphthalene <br /> A Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> EPA Method 8020/8015 <br /> Acceptability Limits': 60-130 % <br /> r , <br /> I''' I Expected Result, Surrogate Result, Surrogate <br /> GTEL No. ug/L ug/L Recovery,% <br /> Water Blank 200 254 127 <br /> McQH Blank 200 234 117 <br /> FA 01 200 245 123 <br /> 02 200 233 117 <br /> 03 200 223 112 <br /> <, 04 200 214 107 <br /> 05 200 257 128 <br /> 06 200 249 124 <br /> MS 200 121 60 <br /> MSD 200 188 83 <br /> MS = Matrix Spike <br /> 6� MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99%confidence interval <br /> of all samples during the previous quarter. <br /> 1 . <br /> 4'6 <br /> I " <br /> t GTEL Conccrd,CA Page 6 of 7 <br /> C010176.00C <br /> GTEL <br /> EN Y$P U N tit EN t Ai - <br /> 4=111 LAao GAICRIES. INC. - <br />