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T <br /> aa <br /> COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: ,1 ',: EMCON'Associates , Service Request: S941406 <br /> Project: TOSCO-#' I jigI /0952-089,02 Date Collected: 11/8/94, - <br /> Sample Matrix: Soil Date Received: 11/9/94 <br /> Date Extracted: NA <br /> Date Analyzed: 11/11,12/94 <br /> Surrogate Recovery Summary <br /> t BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> ` Percent Recovery <br /> Sample Name Lab Code a.,a,a-Trifluorotoluene <br /> ..A <br /> L 1191-THP 1 S-10 5941406-001 98 <br /> 11191-THP I S-20 5941406-002 106 <br /> 11191-THP 1 S-60 S941406-003 99 <br /> 1119 I-THP2S-I0 5941406-004 102 <br /> 11191-THP2S 25 5941406-005 105 <br /> 11191-THP3 S-10 S941406-006 99 <br /> 11191-THP3 S-15 5941406-007 99 <br /> Method Blank 5941111-SB 113 <br /> CAS Acceptance Limits: 5I-137 <br /> Approved By: Date: -d 8-6 4 <br /> SURlID62994 s — <br /> 1: <br />