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t' <br /> COLUMBIA ANALYTICAL SE=RVICES, INC. <br /> { Client: EMCON Associates eerdiimd: 05/29/91 <br /> r' sut"""ted By: Clleni Date R <br /> Project: Nor Cal 13everage/G05-01.01 %VOrk CTdGr#: SJ91.0751 <br /> Sample Matrix: Soil <br /> QA/QC Report <br /> Surrogate Recovery Summary <br /> STEX and TPH as Gasollne <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> i <br /> m I m Daly AF <br /> 4-BrOmOfluorobenzene <br /> y EJ1W-1 17ti5-i8' <br /> 05/30/91 92, <br /> J MW-141-41,h' 05/30/91 <br /> 105. <br /> Method Slaak 05/30/91 79. <br /> i <br /> CAS Acceptanr..e Criteria 70-140 <br /> TPH Total Petroleum Hydrocarbons <br /> l <br /> i <br /> �� <br /> APProvod by--�P�Sr.SL:�� Date <br /> i <br /> i <br /> 8 <br /> 1921 Ringwood Avenue •inn Jose, Cafgarnio 9513f Y Telephone 40a1437.2400 Fax 4081437.9376 <br /> i <br />