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A7 !17 4 <br /> COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client- 1=MCON Service Request. K9505155S <br /> Protect: ARCO#2168/EMCON Project No 1775-234 001 Date Collected. 8/15/95 <br /> Sample Matrix Nater Date Received- 8/17/95 <br /> Date Extracted: 8/24/95 <br /> Date Analyzed: 8/30/95 <br /> Matrix Spike Summary <br /> Oil and Grease <br /> SM 5520 C&F <br /> Units mg/L (ppm) <br /> CAS <br /> Percent <br /> Spiked Recovery <br /> Spike Sample Sample Percent Acceptance <br /> Sample Name Lab Code MRL Level Result Result Recovery Limits <br /> MW-2(53) K9505155-002 0 5 19 217 397 95 71-113 <br /> MSIJVLO2194 <br /> Page 18 <br />