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COLUMBIA ANALYTICAL SERVICES, INC <br />' [ QA/QC Report <br /> Client Bldeti Envtrotunental Service Request S2000486 <br /> Pr4lect U-Haul 470950 SCl/002-70950 <br /> Jr Date Collected NA <br /> r Sample Matrix Water <br /> Date Received NA <br /> Date Extracted NA <br />' Date Analyzed 2/10/00 <br /> Matrix Spike/Duplicate Matrix Spire Summary <br />' r BTEX and 7PH as GasoI2ne <br /> Sample Name BATCH QC Units ug/L(ppb) <br />' [ Lab Code 52000481-003MS, 52000481-003DMS Basis NA <br /> Test Notes <br />' [ Percent Recovery <br /> CAS Relative <br /> Prep Analysis Spike Level Sample Spike Result Acceptance Percent <br /> Analyte Method Method MRL MS DMS Result MS DMS MS DMS Limits Difference <br />' f Benzene EPA 5030 802I13 0 5 50 50 ND 58 50 116 100 75-135 15 <br /> Toluene EPA 5030 8021B 0 5 50 50 0 7 67 58 133 115 73-136 14 <br /> [ Ethylbenzene EPA 5030 8021B 0 5 50 50 ND 60 51 120 102 69-I42 16 <br /> Gasoline EPA 5030 CA/LUFT 50 500 500 ND 480 450 96 90 75-135 6 <br /> IC <br /> IC <br /> IC <br /> IC <br /> I [ <br /> I [ <br /> App Approved By Date a43—U13 <br /> DMS/020597p <br /> Pq <br /> [ Page 36 <br />