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Ci <br />u <br />D <br />t. <br />11 <br />I <br />1proved By 8Date <br />Tort By:RWONG <br />COLUMBIA ANALYTICAL SERVICES, INC. <br />QA/QC Report <br />Client : <br />Shaw Environmental & Infrastructure, Inc. <br />Service Request : <br />P0700115 <br />Iroject Name: <br />Foothill Landfill, San Joaquin County <br />Date Collected : <br />01/31/07 <br />roject Number: <br />791289 (Ground Water) <br />Date Received : <br />02/02/07 <br />Sample Matrix : <br />WATER <br />Date Extracted: <br />NA <br />IDate <br />Analyzed : <br />02/02/07 <br />Matrix Spike/Duplicate Matrix Spike Summary <br />ample Name: <br />LW -1 <br />Units: <br />mg/L (ppm) <br />Lab Code: <br />P0700115-004MS P0700115-004DMS <br />Basis: <br />NA <br />est Notes <br />Spike <br />Analysis Spike Level Sample <br />Spike Result Recovery <br />CAS <br />RelativePreP <br />Result <br />talyte <br />Method Method PQL MS DMS Result <br />MS DMS MS DMS <br />Acceptance <br />Limits <br />Percent Notes <br />Difference <br />Sulfate <br />None 300.0 0.5 10.0 10.0 13.4 <br />23.6 23.5 102 101 <br />80-120 <br /><1 <br />1 <br />Ci <br />u <br />D <br />t. <br />11 <br />I <br />1proved By 8Date <br />Tort By:RWONG <br />