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M - ol <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> Giant: EMCON Associates `l Date Received: 08/04/91 <br /> Submitted By: Client Work Order 4F: SJ91.0787 <br /> Project: Nor Cal ®average/G05-01.01 Sample Matrix: Water <br /> w <br /> QA/QC Report <br /> Surrogate Recovery Summary <br /> BTEX and TPH as Gasoline <br /> NJ EPA Methods 5030/8020/DHS LUFT Method <br /> 80=19 NIM <br /> D� tY3� Percent R2r.,glr�pl <br /> 4-Bromofluarobenzene <br /> .- <br /> MW-1 06/06/91 91, <br /> Method Blank 06/06/91 91. <br /> CAS Acceptance Criteria 70.140 <br /> TPH Total Petroleum Hydrocarbons <br /> 1 <br /> l l Date <br /> Approved by <br /> 6 <br /> 2400 Fox 4061437•9356 <br /> 9 <br /> 1921 Ringwood Avenue • San Jose. ColMornla 95134 •Telephone 4091437 • <br />