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Project Number 5F&175-020472 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N46CWCO244-9-X <br /> Facility Number 9-5155 <br /> Work Order Number 0008737 <br /> Report Issue nate August 31, 1990 <br /> OA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> 10 Blankg <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 OC Check SamnlQ <br /> The control limits were met for 4 out of 4 CC check compounds as shown in Table 3 <br /> 30 Surrogate Compound Rgggv_gne� <br /> Percent recovery limits were met for the surrogate compound (naphthalene) for all samples <br /> as shown in Table 4 <br /> 40 Matrix Spike (MS) and Matrix S12ike Du fi�(MSD) Accuracv and Prgglston <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 �gmgle 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 /> C008737 DOC <br /> GTEL <br /> E-N V 140 N M E N SAL <br /> ® LAD04AT0QI1S INC <br /> i <br />