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=K- <br /> "M <br /> RR <br /> ,-. R Qct Number: SiFB-175-02 1.72 <br /> Conauttant Prof ect Number: 2034753289 <br /> Contract Number: N46CWCO244.9-X Y <br /> Fatility Number: 0.0.312 <br /> Work Order Number: D005645 <br /> Report"us Dole: June 11,1990 <br /> QA Cordormance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoilne In Soil <br /> EPA Method 8020/9015 <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 Indepe,-ent=shack Sample <br /> The control limits were met for 4 out of 4 QC check compounds as shown in Table 3. <br /> W <br /> 3,0 Surrogate on annt,nd fecoveries <br /> Percent recovery limits were met for the surrogate compound(naphthalene)for EM samples <br /> as shown in Tabte b. <br /> 4,0 Mairk mike(MSI and Matrix Spika.Duplfcate fM5D1 Arcuracy and Precision <br /> 4.1 Percent recovery limits were met for 4 of 4 com,-.ounds In the MS and MSD as shown In Table <br /> w' 5, <br /> 4.2 Relative percent difference(RPD)criteria%as met for 4 of 4 analytes In the MS and MSD as <br /> shown In Table 5. <br /> f <br /> 5.0 Sample Handiino <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 /> `w <br /> GTEL Concord,CA Pago 2 of fi <br /> D0f15645A.DOC <br /> TEL <br /> IN V 110N MF MS At <br /> - - I= 1A10RA10011 S, INC - <br />