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r <br /> Project Number. SF&175-0204.72 <br /> Consultant Arctoct Number: 16000.250-044 <br /> FH Convaet Number. N46CWCO244-gx <br /> Facility Number. 9.6155 <br /> i Work Order Number. C009164 <br /> Report Mull pots: September 13,1990 <br /> w <br /> QA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8815 <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 IndepQndent QC�eck Sample <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> 3.8 $urroaate_Qompou-nd Recoveries <br /> Percent recoverylimits were met For the surrogate compound(naphthalene)3'or:ali samples <br /> as shown in Table 4. ` <br /> 4.8 matrix$plkp,WS)and Matrix Spike Duplicate fM$D1 AQQuragv an¢PLecision <br /> 4.1 Percent recovery IjmRs were met for 4 of 4 compounds in the MS and MSD ai 2-hov n n,T*f <br /> S. <br /> 4.2 Relative percent difference(RPD)criteria was met for 4 of 4 anah;':s in t'ne PA wr:jPASO�s <br /> shown in Table S. <br /> 5.0 Samp-le HHandlino <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 /> GTe Concord,CA Page 3 of 7 <br /> C00916r4.DOC <br /> TE <br /> - <br /> IA10�ArOP115. INC. - - <br /> ,. <br /> q <br />