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COLUMBIA ANALYTICAL SERVICES, INC. <br />QA/QC Report <br />Client : <br />Shaw Environmental & Infrastructure, Inc. <br />Service Request: <br />P0700704 <br />Project Name: <br />Foothill Landfill, San Joaquin County (New Wells) <br />Date Collected <br />NA <br />Project Number : <br />124591 <br />Date Received : <br />NA <br />Sample Matrix: <br />WATER <br />Date Prepared : <br />NA <br />Date Analyzed : <br />08/06/07 <br />Laboratory Control Sample Summary <br />Inorganic Parameters <br />Sample Name: <br />Lab Control Sample <br />Units : <br />mg/L <br />Lab Code : <br />P0700704-LCS <br />Basis: <br />NA <br />Test Notes <br />CAS <br />Percent <br />Recovery <br />Prep Analysis <br />Percent <br />Acceptance Result <br />Analyte <br />Method Method <br />True Value Result Recovery <br />Limits Notes <br />Solids, Total Dissolved (TDS) <br />NONE SM 2540 C <br />545 544 <br />100 <br />85-115 <br />1� <br />S Standard <br />M Methods for the Examination of Water and Wastewater, 20th Ed., 1998. <br />sail <br />Report By: CSKILLERN <br />t <br />I <br />00030 <br />I <br />