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Project Number: SFi�175-0204,72 <br /> Consultant Project Number: 203-175-3241 <br /> Contract Number. N46CWCO244-9-X <br /> Facility Number: 94)557 <br /> World order Number: DOD4127 <br /> Report Issue Date, April 10, 1990 <br /> QA Conformance Summary <br /> Purgeable Aromatics in Soil <br /> MODIFIED EPA METHOD 8020 <br /> 1.0 Blanks <br /> Fourof 4 target compounds were belowdetection limits inthe reagent waterblankand reagent <br /> methanol blank as shown in Tables 2a and 2b. <br /> 2.0 Independent QC Check Sample <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> 3.0 SUMgate Compound Recoveries <br /> Percent recovery limits were met for the surrogate compound (naphthalene) for all samples <br /> as shown in Table 4. <br /> 4.0 Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Accuracy_and_PrerisiQnn <br /> 4.1 Percent recovery limits were met for 4 of 4 compounds in the MS and MSD as shown in Table <br /> 5. <br /> 4.2 Relative percent difference (RPD) criteria was met for 4 of 4 analytes in the MS and MSD as <br /> shown in Table 5. <br /> 5.0 Samole Handlino <br /> 5.1 Sample handling and holding time criteria were met for all samples. <br /> 5.2 There were no exceptional conditions requiring dilution of samples. <br /> GTEL Concord,CA Page 2 of 6 <br /> a064127.DDC <br /> GTEL R <br /> LASORAIORIES. INC <br />