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COLUMBIA ANALYTICAL SERVICES, INC. <br /> QA/QC Report <br /> Client: EMCON Associates Date Received: 09/03/93 <br />�. Project: EMCON Project No. OG71-033.01 Service Request No.: SJ93-1 102 <br /> Arco Facility No. 548 Sample Matrix: Water <br />• <br /> Continuing Calibration Summary <br /> Oil and Grease, IR <br /> SM5520-C <br />• <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Hydrocarbon Mix 40 39.1 98. 90-110 <br />• <br />• <br />• <br />• <br /> Approved by: Date: <br /> 7 <br /> 4004 Q;n..........1 A..nn��.. C,-., !.- r..l;c.....:., f7C.�1. T..1�_L��- .n0,.'1� ^�,nn _.. Ina,.�� nne[ <br />