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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Client: EMCON Associates Date Received: 05/29/91 <br /> • Submitted By: Client Work Order #: SJ91-0751 <br /> Project: Nor Cal Beverage/G05.01.01 Sample Matrix: Soll <br /> QA/QC deport <br /> Surrogate Recovery Summary <br /> TPH as Diesel <br /> DHS LUFT Method <br /> Samole Name Date Anal Percent Rt2oveff <br /> P-Terphenyl <br /> MW-1 171h-18' 06/03/91 103• <br /> MW-1 41-41 tf:' 06/03/91 114. <br /> Method Blank 06/03/91 117. <br /> CAS Acceptance Criteria 55-145 <br /> TPH Total Petroleum Hydrocarbons <br /> Approved by Z-(/ ji r ' ' i l Date_! _ <br /> 5 <br /> 2404 Fox 4081437-9356 <br /> 1921 Ringwood Avenue • Son Jose. Colifornio 95131 • Telephone 4081437 • <br />