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Project Number: SF&175-02D4.72 <br /> Consultant Project Number: 203-175-3291 <br /> Contract Number: N46CWCO244-9-x <br /> Facility Number: 9-M7 <br /> Work Order Number: D005371 <br /> Report issue Date- May 16, 1990 <br /> QA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> FPA Method 8020/8015 <br /> 1.0 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 /> 2.0 IndQpQnGl nit CQCheck Sample <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> 3.0 Sumga_te Compound RecoveriQs <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 M% gno M trix ik li t (MSD) Accuracy andPrpcisign <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 $ample Handling <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 4 of 8 <br /> D005371.DOC <br /> MGTEL <br /> ENVIRONMENTAL <br /> LAEORATORI ES. INc. <br />