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i <br /> Project Number: SFS-175.0204.72 <br /> `h 1 Consultant Project Number: 16000-256-044 <br /> Contract Number: N46CWCO244.9-K <br /> r; Facility Number: 9.6155 <br /> Work Cider Number: C009164 <br /> i Report issue Date: September 13,1990 <br /> r� <br /> Table 4 <br /> ¢ SURROGATE COMPOUND RECOVERY <br /> Naphthalene <br /> I{I Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> t i as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> Acceptability Un itsl: 60-130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> u;EL No. ug/I- i Recovery,% <br /> i s Water Blank 200 176 88 <br /> li Blank 200 161 81 <br /> 01 200 172 86 <br /> 02 200 182 91 <br /> -, 03 200 193 96 <br /> MS 200 175 1 87 <br /> MSD 200 165 83 <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99%confidence interval <br /> of a!l samples during the previous quarter. <br /> !.a <br /> I ' <br /> t� <br /> r <br /> 3 ; <br /> t <br /> GTEL Concord,CA Page 5 of 7 <br /> C00,3164.CCC. <br /> GTE L <br /> e N V 190 N E N TAi - - <br /> 1=1 1.Al09 ATO QI E 5. INC, <br />