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1 � - <br /> COLUMBIA ANALYTICAL SERVICES,INC, <br /> QA/QC Report <br /> Client EMCON Service Request: S950650 <br /> Project ARCO Facilin No 2130/EMCON Project No 1775-229 001 Date Collected: 5/19/95 <br /> tinmpie Matrix Water Date Received: 5/22/95 <br /> Date Extracted: NA <br /> Date Analyzed: 5/26/95 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br />' TPH as Gasoline <br /> EPA Methods 5030/Caltforrua DHS LUFT Method <br /> Units ug/L(ppb) <br /> Sample Name MW-7(72) <br />' Lab Code 5950550-007 <br /> Percent Recovery <br /> CAS Relative <br />' Spike Level Sample Spike Result Acceptance Percent <br /> knaivte MS DMS Result MS DMS ,VIS DMS Limits Difference <br />' Gasoline 250 250 ND 262 271 105 108 67-121 3 <br /> i <br /> Approved By Date f" <br />' 4 I55 p6pi94 <br /> �3 ACLS wguy biw95 <br /> Pap Iio� <br />