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140 4 <br />- www.eW6Sb.com Helena, W 077 -472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -1515 <br />t! Gillette, WY 866 -606 -1175 • Rapid City, SD 886- 672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: <br />Cotter Corporation <br />Report Date: <br />02/26/14 <br />Project: <br />Schwartz - GW 2/5/14 S27350 <br />Work Order: <br />C14020159 <br />rAnalyte <br />Count Result Units RL ° /6REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: <br />E300.0 <br />Analytical Run: IC2- C_140206A <br />Sample ID: <br />CCV- 010206 -01 2 Continuing Calibration Verification Standard <br />105 <br />02/06/14 11:29 <br />Chloride <br />9.76 mg /L 1.0 98 90 <br />110 <br />90 110 <br />Sulfate <br />38.7 mg /L 1.0 97 90 <br />110 <br />Method: <br />E300.0 <br />Sample ID: <br />ICB- 010206 <br />Chloride <br />105 <br />Sulfate <br />Sample ID: <br />LFB- 010206 <br />Chloride <br />Sulfate <br />Sample ID: <br />C14020110- 001AMS <br />Chloride <br />105 <br />Sulfate <br />0.5 20 <br />2 Method Blank <br />ND mg /L <br />0.06 mg /L <br />2 Laboratory Fortified Blank <br />9.67 mg /L <br />38.1 mg /L <br />2 Sample Matrix Spike <br />13.6 mg /L <br />75.3 mg /L <br />Sample ID: C14020110- 001AMSD 2 Sample Matrix Spike Duplicate <br />Chloride 137 mg /L <br />Sulfate 759 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Batch: R183400 <br />Run: IC2- C_140206A 02/06/14 10:52 <br />0.01 <br />0.03 <br />Run: IC2- C_140206A 02/06/14 11:10 <br />1.0 97 90 110 <br />1.0 95 90 110 <br />ND - Not detected at the reporting limit. <br />Page 13 of 20 <br />Run: IC2- C_140206A <br />02/06/14 12:06 <br />1.0 <br />105 <br />90 110 <br />1.0 <br />104 <br />90 110 <br />Run: IC2- C_140206A <br />02/06/14 12:24 <br />1.0 <br />105 <br />90 110 <br />0.5 20 <br />1.0 <br />106 <br />90 110 <br />0.7 20 <br />ND - Not detected at the reporting limit. <br />Page 13 of 20 <br />