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s <br /> •„ {`a u, COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client ARCO Products Companv Service Request- L9603708 <br /> Project 2168 Stockton/#21775-234 002/TO#19350 00 Date Collected NA <br /> LCS Matrix Water Date Received NA <br /> Date Extracted 8130196 <br /> Date Analvzed 8/30/96 <br /> Laboratory Control Sample/Duplicate Laboratory Control Sample Summary* <br /> H-,drocarbons <br /> SM5520 CAP <br /> Units mg/L (ppm) <br /> Percent Recovery <br /> CAS Rel.itn c <br /> True Value Result Acceptance Percent <br /> An.ilvte LCS DLCS LCS DLCS LCS DLCS Limits DiffcrenLC <br /> TRPH 209 209 1 86 1 93 89 92 75-125 4 <br /> * Sample quantity was insufficient to perform matrix spike and matrix spike duplicate Three <br /> separate replicate one liter samples are required to analvze sample and spikes <br /> DLCS/012195 <br /> Page i I <br />