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Project Number: SFB-175-p204;2 <br /> Consultant Protact Number: 1630-250-OU <br /> Connaet Number: N46CWCO244-4.X <br /> Facility Number: 4.6155 <br /> Work Order Number: =524 <br /> Report Issue Data: September 27.1M <br /> OA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA 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 Independent QC Check Sam le <br /> -- The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> 3.0 Strr�clate Comp gund Recoveria� <br /> Percent recovery limits were met for the surrogate compound(naphthalene)for all samples <br /> as shown in Table 4. <br /> 4.0 Miltrix Spike M 1 and Matrix Spike Duplicate(M a ACCUrACy and_Precision <br /> 4.1 . Percent recovery tfrnits 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 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 /> G,EL Concord,C? Page 3 of 7....r. ... . . ... .. . . ...... .. . .. ___ <br /> C30 524 00C <br /> G7E L <br /> E N V 1 2 0 Y M I N r A: - - - <br /> lA{OdArOPIFf, IYC_ <br />