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Project Number SFB-175-0204 72 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N46CWCO244-9-X <br /> FaCchty Number 9-6155 <br /> Work Order Number C010620 <br /> Report issue Date October 26 1990 <br /> Table 4 <br /> SURROGATE COMPOUND RECOVERY <br /> Naphthalene <br /> Purgeable Aromatics in Soil <br /> MODIFIED EPA METHOD 8020 <br /> Acceptability Limits' 60-130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No ug/L. ug/L. Recovery, % <br /> Blank 200 204 102 <br /> 01 200 149 75 <br /> MS 200 123 62 <br /> MSD 200 125 63 <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99°'a confidence interval <br /> of all samples during the previous quarter <br /> GTEL Concord GA Page 6 of 7 <br /> C010620 DOC GTE <br /> L <br /> E N V I R O N V e 4' <br /> _ LASORATORI@S INC <br />