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Project Number: SFi3175-0204.72 <br /> Consultant Project Number: 203-1753241 <br /> Contract Number: N46CW00244-9-X <br /> Facility Number: 9-0557 <br /> Work Ordsr Number: D005259 <br /> Report Issue Date: May 21, 1990 <br /> QA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> 1.0 Lanks <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 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 3urroaate Qoml2oundReCOY1110 <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—S) Matrix Spike Duplio (MSD) l i n <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 Sample 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 /> GTEi_Concord,CA Page 3 of 7 <br /> D005259.DM <br /> MGTELR <br /> LA!ORATORIES. INC, <br />