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COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report � <br /> Client- SOT I\ ,,, <br /> Environ ^rt11 S.. •L.^JV•V`F�}f O/^J <br /> 44 a�4liV4J�• 3 <br />' Project: U-Haul Stockton#709-50/#94HW021 Date Collected: NA <br /> Sample Matrix: Water Date Received: NA <br /> Date Extracted: NA <br />' Date Analyzed: 10/4/96 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br />' BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Modified 8015/California DHS LUFT Method <br /> Units ug/L (ppb) <br />' <br /> Sample Name BATCH QC <br />' Lab Code L9604059-012 <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 400 400 ND 398 367 100 92 39-150 8 <br />' Toluene 40 0 400 ND 412 380 103 95 46-148 8 <br /> Ethylbenzene 40 0 40 0 ND 421 384 105 96 32-160 9 <br /> TPH as Gasoline 2000 2000 ND 1870 1990 94 100 70-140 6 <br /> 1 <br /> Approved By Datez 7 <br /> DWIS12ossw <br />' <br /> 14073111c Joy so, <br /> 0dmsw , page Na <br /> 6925 Canoga Avenue Canoga Pard CA 91803 (818) 587-5550 Fox (818) 587-5555 <br />