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. Project Number SrS-175.0204 72 <br /> Consultant Project Number 16000.242-044 <br /> Contract Number N46CWCO243-9-X <br /> Facility Number 9-6155 <br /> Work Order Number 0009120 <br /> Report Issue Date September 11, 1990 <br /> CA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> i <br /> 10 Blanks <br /> Five of 5 target compounds were below detection limits in the reagent water blank and reagent <br /> methanol blank as shown in Tables 2a and 2b <br /> 20 Independent QC Check Sam 1p� <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3 <br /> 30 Surrogate Compound Recoveries <br /> Percent recovery limits were met for the surrogate compound (naphthalene) for all samples <br />• as shown in Table 4 <br /> 40 Matrix Spike fMSI and Matrix$Dike DupliCate (MSQ) Accuracy gnd Precision <br /> 41 Percent recovery limits were met for 4 of 4 compounds in the MS and MSD as shown in Table <br /> 5 <br /> 42 Relative percent difference (RPD) criteria was met for 4 of 4 analytes in the MS and MSD as <br /> shown in Table 5 <br /> 50 Samolp Handling <br /> 51 Sample handling and holding time criteria were met for all samples <br /> 52 There were no exceptional conditions requiring dilution of samples <br /> I <br /> GTEL Concord CA Page 3 of 7 <br /> 0009120 Q00 GTE L <br /> ENV I R O N MEN At <br /> ® LAEORAWRIES I^IG <br />