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COLUMBIA ANALYTICAL SERVICES. INC <br /> 1 <br /> Client EMCON Associates Date Received 05/14/92 <br /> Project EMCON Project No G71-17 01 Work Order # SJ92-0606 <br /> Arco Facility No 434 Sample Matrix Water <br /> QA/QC Report <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> TPH as Gasoline <br /> EPA Methods 5030/DHS LUFT Method <br /> pg/L (Ppb) <br /> Sample Name W-9 A78) <br /> Date Analyzed 05/26/92 <br /> Percent Recovery <br /> Sample Spike Result Acceptance <br /> Anal $pike Level Result MS DMS MS DMS Criteria <br /> TPH as Gasoline 250 73 346 385 109 125 70-140 <br /> TPH Total Petroleum Hydrocarbons <br /> 2 <br /> Approved by Date . _ / J��! _ q/r <br /> 9 <br /> 401)4 0 .... -.-A t � o • �-�� i— r,ij,.— or,414 9 T-l-,Kr— An A/A 17 '?AOr) • rly d0A/A 17 015A <br />