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Project Number SFS-175-0204 72 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N46CWCO244-9-X <br /> Faclllty Number 9-6155 <br /> Work Order Number 0009164 <br /> Report Issue Date September 13, 1990 <br /> CA Conformance Summary <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> EPA Method 8020/8015 <br /> 10 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 /> 20 Indel2endent CC Chpgk m l <br /> The control limits were met for 4 out of 4 CC check compounds as shown In Table 3 <br /> 30 Surrogate CompoUndRecoveries <br /> Percent recovery limits were met for the surrogate compound (naphthalene) for all samples <br /> as shown In Table 4 <br /> 40 Matrix Ik MS) gnd Matrix Spike Quolicate (MSQ) Accuracy and Precision <br /> 41 Percent recovery limits were met for 4 of 4 compounds In the MS and MSD as shown In Table <br /> 5 <br /> 42 Relative percent difference (RPD) criteria was met for 4 of 4 analytes In the MS and MSD as <br /> shown to Table 5 <br /> 50 Samgie Handling <br /> 51 Sample handling and holding time criteria were met for all samples <br /> 52 There were no exceptional conditions requiring dilution of samples <br /> GTEL Concord,CA Page 3 of 7 <br /> C009164 DCC GTE L <br /> ENV I R O N M S 4 TA L <br /> ® LABORATORIES INC <br />