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{a <br /> COLUMBIA ANALYTICAL SERVICES. INC <br /> 10 QA/QC Report �- <br /> Client EMCON Service Request: 5950304 <br /> Project kRCO FacilltN No 2133 /EMCON Project No 177-47--09 01 Date Collected. 3/8/95 <br /> Sample Matra Water Date Received: 3/10/95 <br /> Date Extracted: NA <br /> Date Analvzed: 3/17 20/95 <br /> Surrogate Recovery Summary <br /> f3TEX and TPH as Gasoline <br /> EPA Methods X030/8020/California DHS LUFT Method <br /> Percent Recovery <br /> Sample Name Lab Code (x,cx,oc-Trifluorotoluene <br /> PR-1 (27) S950304-001 93 <br /> PR-2 (27) 5950304-002 92 <br /> BHD-1 (27) 5950304-00: I 11 * <br /> BHD-2 (28) 5950304-004 90 <br /> E-2 (2 1) 5950304-00-4 109 <br /> E-3 (17) S950304-006 103 * <br /> E-4(2 1) 5950304-00- 99 * <br /> E-5(19) S950304-008 106 <br /> E-6(17) S950304-009 107 <br /> E-7(I 8) 5950304-010 91 <br /> E-9(23) S950304-011 104 <br /> E-9 (18) S950304-01'_ 120 ** <br /> E-10 (22) S950304-01- 94 <br /> E-11(22) S950304-014 109 <br /> E-12 (21) 5950304-01- 95 <br /> MW-1 (29) 5950304-016 92 <br /> MW-2 (27) 5950304-01- 104 <br /> MW-3 (29) 5950304-018 90 <br /> MW-4 (27) 5950304-019 93 <br /> MW-5 (29) 5950304-020 <br /> 107 <br /> CAS Acceptance Limits 69-116 <br /> * The surrogate used for this sample was 4-bromofluorobenzene <br /> ** Surrogate recovery above acceptance limi BTEX results corrected tar high internal standard concentration <br /> i f � <br /> Approved By1� Date <br /> I R 11062994 <br /> Page 5 <br /> 4014 Qinnwnnel Ave-min 04414 • Tnlnr- 4nn'417 14nn • r.-.. 4r1R1A 17 Q'k';A <br />