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. Project Number SFB-175-0204 72 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N48CWCO244 9-X <br /> Facility Number 96155 <br /> Work Order Number 0010846 <br /> Report Issue Date November 8 1990 <br /> QA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> 10 Blank <br /> Five of target compounds were belowdetection limits in the reagent water blank and reagent <br /> methanol blank as shown in Tables 2a and 2b <br /> 20 Independent QC Check Sample <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3 <br /> 30 Surrogate Comi2ound Recoverie <br /> Percent recovery limits were met for the surrogate compound (naphthalene) for all samples <br />. as shown in Table 4 <br /> 40 Matrix S rlZike (M% and Matrix S ik Duollcate (MSD) Accuracy and Pre r i n <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 Samoie 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 /> GTEL Concord CA Page 3 of 7 <br /> Co 10846 DOC GTEL <br /> 5 N V I R Q 4 M E N T A <br /> ® to 50 R A TO QI ES INC <br />