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4 <br /> ll Ell l111031340 12 <br /> I "mall nlilil 11 <br /> i <br /> Traject Number. STB-175-0204.72 <br /> Consultant Proiect Number: 16000.250-044 <br /> Contract Number N46CWCO244.9-X <br /> Facility Number. 9-6155 <br /> Work Order Number: COU737 <br /> r;- Report Issue pate: August 31,1990 <br /> Table 4 <br /> Fix 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 UrnitSl: 60-130 % <br /> tw <br /> } Expected Result,I Surrogate Result, Surrogate <br /> 5 <br /> GTEL No. ug/L ug/L Recovery,% <br /> Water Blank 200 166 <br /> 83 <br /> McOH Blank 200 2i 1 106 <br /> R 01 200 245 123 <br /> .a 02200 255 128 <br /> 03 200 250 125 <br /> l NIS 200 189 94 <br /> -'' <br /> MSD 200 199 99 <br /> I rr MS = Matrix Spike <br /> L� MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99%confidence interval <br /> of all samples during the previous quarter. <br /> I + <br /> i <br /> f <br /> a y' <br /> GTEL Concord,-A- Page 6 of 7 <br /> CCO8737.CCC <br /> i� (Co"T L <br /> 1 EN V 140 N.LI ENTit <br /> :A,80QAtQQ1E5. INC, <br />