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' COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br /> lent AMERCO Real Estate Company Service Request L9703331 <br /> rolect U-Haul Stockton/709-50 Date Collected NA <br /> ample Matrix Water Date Received NA <br /> Date Extracted NA <br /> Date Analyzed 9/30197 <br /> Matrix Spike/Duplicate Matnx Spike Summary <br />' BTEX and TPH as Gasoline <br /> Sample Name Batch QC Units ug/L(ppb) <br /> tab Code L9703255-003MS, L9703255-003DMS Basis NA <br /> est Notes <br /> I <br /> Percent Recovery <br /> CAS Relative <br /> Prep Analysis Spike Level Sample Spike Result Acceptance Percent Result <br /> alyte Method Method MRL MS DMS Result MS DMS MS DMS Limits Difference Notes <br /> Benzene EPA 5030 8020 0 5 127 127 ND 821 840 65 66 39-150 2 <br /> kl <br /> luene EPA 5030 8020 0 5 140 140 ND 142 145 101 104 46-148 2 <br /> ylbenzene EPA 5030 8020 0 5 35 2 35 2 ND 30 3 309 86 88 32-160 2 <br /> H as Gasolme EPA 5030 8015M 50 2000 2000 ND 1970 2040 98 102 70-140 4 <br /> 1 <br /> 1 <br /> 1 <br /> ApproFved Date + <br /> Pp �BY <br /> MSlp20597p <br /> 03311 VOH JCITS I0197 Page No <br />