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COLUMBIA ANALYTICAL SERVICES,INC <br />' QA/QC Report <br /> . Client Blaes Environmental Service Request 52001904 <br /> Project U-HAUL#709-501002-70950-02 Date Collected NA <br /> Sample Matrix Water Date Received NA <br /> Date Extracted NA <br /> Date Analyzed 718100 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> BTEX and TPH as Gasoline <br /> Sample Name BATCH QC Units ug/L(ppb) <br /> Lab Cade 52001905-OOIMS, 52001905-OOIDMS Basis NA <br /> Test Notes <br /> Percent Recovery <br /> CAS Relative <br /> Prep Analysis Spike Level Sample Spike Result Acceptance Percent Result <br /> Analyte Method Method MRL MS DMS Result MS DMS MS DMS Limits Difference Notes <br /> Benzene EPA 5030 8021B 0 5 25 25 ND 262 264 105 106 75-135 <1 <br /> Toluene EPA 5030 8021E 05 25 25 ND 274 27 8 110 111 73-136 1 <br /> Ethylbenzene EPA 5030 8021B 05 25 25 ND 25 1 248 100 99 69-142 1 <br /> Gasoline EPA 5030 CA/LUFT 50 500 500 ND 466 425 93 85 75-135 9 <br /> E • <br /> E <br /> E <br /> E <br /> E <br /> l <br /> I <br /> Approved By Jt15 Date (3 40 <br /> DMS/020597p Ns <br /> Page 33 <br />