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MEN A <br /> r <br /> g s Project Number. SF9.175-020 i.72 <br /> k ] Consultant Prefect Number: 16000.250.044 <br /> Contract Number. N.16CWCO244-9-X <br /> %- Facility Number: 46115 <br /> Work Order Number: C009624 <br /> Report Issue Oata: August 27,1990 <br /> E.; <br /> QA Confr,rmance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> 1.o Blanks <br /> Five of5 target compou nds were below detection limits in the reagcntwater blank and reagent <br /> ' fr--,hano[blank as shown in Tables 2a and 2b. <br /> " I 2.0 In n n h k m <br /> t a The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> 3.0 St rru clie Comnound Recoverie <br /> y Percent recovery limits were met for the surrogate compound(naphthalene)for all samples <br /> �. as shown in Table 4. <br /> 4.0 Matrix 5oik (MS�arsd Mat ik Du li t MSD A n Pr i 1 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 RelativF 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 aampip H n lin <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 /> i [',TEE.Concord,CA Page 3 of 7 <br /> I CCO8624.00C �✓ <br /> ® JASORAra ZIES. k-%c _ _ <br />