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I <br /> Project Number: SF&175.0204.72 <br /> Consultant Project Number; 19000,2064044 <br /> Contract Number: N46CWCO244.9•X <br /> Facility Numbar: 96465 <br /> Work Order Number. 0005,314 <br /> Report Issua Date; May 22,1990 <br /> r., <br /> Table 4 <br /> SURROGATE COMPOUND RECOVERY <br /> Naphthalene <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Water <br /> EPA Method 8020/6015 <br /> Acceptability Limitsl: 70-130% <br /> I . <br /> Expected Surrogate Surrogate <br /> GTEL No. Result, ug/L Result,ug/L Recovery,% <br /> Blank 200 194 97 <br /> i.y <br /> 01 200 229 115 <br /> IR 02 1 200 210 105 <br /> 03 200 206 103 <br /> 04 200 213 107 <br /> 05 200 199 99 <br /> "a 06 200 230 115 <br /> 07 200 198 99 <br /> ' MS 200 <br /> 172 86 <br /> WS 200 191 96 <br /> i 9 WSD 200 183 92 <br /> MS = Matrix Spike <br /> WS = Reagent Water Spike <br /> WSD = Reagent Water Spike Dup!Icate <br /> + 1 = Acceptability limits are derived from the 99%confidence interval <br /> of all samples during the previous quarter. <br /> 13 <br /> 6 <br /> l <br /> ,.a <br /> 5 <br /> GTEL Concord,CA Page 6 of 8 <br /> D005314.00C a <br /> ' - - ENVIa ON MLNTAL <br /> LA60RATQRICS, INC. <br />