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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: EMCON Associates Service Request: S941528 <br /> Project: Foothill Landfill/0939-004.08 Date Collected: 11/28/94 <br /> Sample Matrix: Water Date Received: 11/30/94 <br /> Date Extracted: NA <br /> Date Analyzed: 12/7/94 <br /> Surrogate Recovery Summary <br /> Volatile Organic Compounds <br /> EPA Method 8260 <br /> P e r c e n t R e c o v e r y <br /> Sample Name Lab Code Dibromofluoromethane Toluene-Dg 4-Bromofluorobenzene <br /> LW-1 S941528-001 89 94 87 <br /> MW-1 S941528-002 91 95 89 <br /> MW-2 S941528-003 104 95 91 <br /> Method Blank S941207-WB 94 102 93 <br /> CAS Acceptance Limits: 86-118 88-110 86-115 <br /> Approved By: Date: <br /> SUR1Po60194 <br /> Page 7 <br /> .nni n• -A ♦ C I-- /' 1-1 ^Cln♦ - T 1 L .nolin7 nAnn - r_.. Ann-' n- <br />