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r <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> QA%QC Report <br /> l <br /> i• Client: EMCON Associates Date Received: 12/22/93 <br /> Project: EMCON Project No. OG71-033.01 Service Request No.: SJ93-1565 <br /> ARCO Facility No, 548 Sample Matrix: '.Nater <br /> r� <br /> Matrix SpikerDuplicate Matrix Spike Summary <br /> Petroleum Hydrocarbons by IR <br /> Standard Methods 5520-F <br /> mg/L (ppm) <br /> r� <br /> Percent Recover y <br /> CAS <br /> Spike Sample Spike Result Acceptance <br /> Analyte Level Result MS DMS MS DMS Criteria <br /> Hydrocarbon Mix 8.0 ND 6.7 7.3 84. 92. 56-151 <br /> Approved by: �w+,a't �`-�-�u^- Date: `qy <br />