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COLUMBIA ANALY TICAL SERVICLS, INC <br /> QA/QC Rcport <br /> Client Sota Environmental <br /> Sen ice Request L96cliU16 <br />' ProICLt Stockton U-Haul/#94HWi)21 Date Collected NA <br /> Sample Matrix Water Date Received NA <br /> Date Extracted NA <br /> Date Analyzed 7/2/96 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br />' MTBE, BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Modified 8015/California DHS LUFT Method <br /> Units ug/L (ppb) <br />' Sample Name BATCH QC <br /> Lab Code L9603021-001 <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 33 9 34 9 82 87 39-150 3 <br /> Toluene 400 400 ND 322 328 80 82 46-148 2 <br /> Ethylbenzene 40 0 40 0 ND 33 0 33 4 82 84 32-160 1 <br /> TPH as Gasoline 2000 2000 ND 1560 1650 78 82 70-140 6 <br /> 1 <br /> Approrcd By Date <br /> I)F1S11.S_95)1 <br />' I b03alo {I y X6:Odnnw 7l31a huge tiu <br /> 6025 Canoga Avenue Canoga Pores CA 91808 (818) 587-5550 Fax (8 18) 587-5555 <br />