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' COLUMBIA ANALYTICAL SERVICES,INC. r <br /> sr � <br /> QA/QC Report <br /> Client: SOTA EnvironmentalService Request: L9604073 <br />' Project. U-Haul Stockton 4709-50/#94HW021 u.uc 4-011CLted. NA <br /> Sample Matrix: Water Date Received: NA <br /> Date Extracted: NA <br />' Date Analyzed: 10/3/96 <br /> Matrix Spike/Duplicate Matnx Spike Summary <br />' BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Modified 8015/Califorrua DHS LUFT Method <br /> Units ug/L(ppb) <br />' Sample Name BATCH QC <br /> Lab Code L9604055-005 <br />' Percent Recovery <br /> CAS Relative <br /> Spike Level Sample Spike Result Acceptance Percent <br />' Analyte MS DMS Result MS DMS MS DMS Limits Difference <br /> Benzene 40 0 400 ND 325 35 8 81 90 39-150 10 <br />' Toluene 400 400 ND 326 35 6 82 89 46-148 9 <br /> Ethylbenzene 400 400 ND 335 37 0 84 93 32-160 10 <br /> TPH as Gasoline 2000 2000 ND 1780 1800 89 90 70-140 1 <br /> 1 <br /> Approved By l Qi Date <br /> - A2 <br /> DMS1S112O"4 <br /> UMPHC!91 8D"dmaq(2) I !96 Pie No <br />' 6925 Canoga Avenue Canoga Park, CA 91303 (818) 587-5550 Fax (818) 587-5555 <br />