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------------------------- <br /> COLUMBIA ANALYTICAL SERVICES,INC. ;t: <br /> QA/QC Report <br /> Client: EMCON Associates Service Request: S941492 <br /> Project: TOSCO# It 19510952-093-02 Date Collected: 11/18/94 <br /> Sample Matrix: Soil Date Received: 11/21/94 <br /> Date Extracted: NA <br /> Date Analyzed: 11122,23194 <br /> Surrogate Recovery Summary <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFr Method <br /> Percent Recovery <br /> Sample Name Lab Code a,oc,a-Tri#luorotoluene <br /> 11195-HP2-S-7,5 S941492-001 III <br /> 11195-HP2-S-10 S941492-002 106 <br /> 11195-HPI-S-5 5941492-003 116 <br /> 11195-HP1-S-10 5941492-004 113 <br /> I1195-TD1-5 5941492-005 115 <br /> Method Blank S941122-SB 104 <br /> Method Blank S941123-SB 101 <br /> CAS Acceptance Limits: 51-137, <br /> I <br /> I <br /> Approved By: <br /> Date: <br /> suA i���� � <br /> Paye 7 of 8 <br /> i <br />