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c <br /> COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client EMCON Associates <br /> Service Request- K9501041 <br /> Project ARCO/Stockton/#17-5-234 01 Date Collected 2/16/95 <br /> Sample Matrix Water Date Received 2/22195 <br /> Date Extracted 2/28/95 <br /> Date Analyzed 3/2/95 <br /> Matnx Spike Summary <br /> Oil& Grease Non-Polar <br /> SM 5520 C &F <br /> Units mg/L(ppm) <br /> CAS <br /> Percent <br /> Spiked Recovery <br /> Spike Semple Sample Percent Acceptance <br /> Sample Name Lab Code MRL Level Result Result Recovery Limits <br /> MW-6(47') K9501041-006 0 5 196 99 27 5 90 58-126 <br /> SM Standard Methods for the Examination of Water and Wastewater, 17th Ed, 1989 <br /> i <br /> Approved B` ` Date 74 <br /> �J <br /> %ISIA/102194 <br /> 01041PHCSPI 418WMS 6195 Page No <br /> r� nr, � <br />