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WAII <br /> ML <br /> P <br /> 3 <br /> �'� Project Number: SFB"1750204.72 <br /> Consultant Project Number: 16000.242-044 <br /> ((°> Contract Number; N48CWCO244.9-X <br /> Facility Number: 9-6155 <br /> e Wo120 <br /> Raport Issue Date:rder Numbar: Seep a ber 11,1990 <br /> T•� <br /> Table 4 <br /> l SURROGATE COMPOUND RECOVERY <br /> Naphthalene <br /> t•, Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> 1 ' EPA Method 8020/8015 <br /> o Acceptability Limftsl: 60-130 % <br /> { ' Surrogate Result, Surrogate <br /> Expected Result, ti. <br /> GTEL No. uq/L ug/L Recove. <br /> ~ Water Blank 200 219 110 <br /> 179 90 <br /> McOH Blank 200 <br /> 01 200 163 82 <br /> $J 102 200 169 ` <br /> Og 200 169 84 <br /> NPS 200 166 83 <br /> MSD 200 167 84 <br /> MS = Matrix Spike <br /> I , <br /> t; MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99%confidence interval <br /> I-a <br /> of all samples during the previous quarter, <br /> 6cy <br /> 1.. <br /> r . <br /> i , <br /> GTGL Concord,CA Page 5 of 7 <br /> C009120.DCC <br /> GTE L <br /> - - EN'/ra On MsNr+l <br /> I I MEN MINE <br />