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www.enerdab.com I Helena, MT 877 472 -0711 • Billings, MT 800 - 7354489 • Casper, WY 888 -235 -0515 <br />AMOM Enebmw Sd 7952 J Gillette, WY 866 -686 -7175 • Rapid City, Su 888 - 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 />09/30/14 <br />Project: <br />Schwartz -GW 9/10/14 S27680,S27681 <br />Work Order: <br />C14090456 <br />Analyte <br />Count <br />Result Units <br />RL %REC <br />Low Limit High Limit <br />RPD <br />RPDLimit Qual <br />Method: <br />E300.0 <br />Analytical Run: IC2- C_140914A <br />Lab ID: <br />CCV091214 -3 <br />2 <br />Continuing Calibration Verification Standard <br />09/12/14 20:46 <br />Chloride <br />9.80 mg /L <br />1.0 <br />98 <br />90 110 <br />Sulfate <br />39.8 mg /L <br />1.0 <br />99 <br />90 110 <br />Method: <br />E300.0 <br />Batch: R191052 <br />Lab ID: <br />ICB <br />2 <br />Method Blank <br />Run: IC2 -C 140914A <br />09/12/14 11:10 <br />Chloride <br />ND mg /L <br />0.01 <br />Sulfate <br />0.1 mg /L <br />0.05 <br />Lab ID: <br />LFBO91214 -1 <br />2 <br />Laboratory Fortified Blank <br />Run: IC2- C_140914A <br />09/12/14 11:45 <br />Chloride <br />10.2 mg /L <br />1.0 <br />102 <br />90 110 <br />Sulfate <br />40.4 mg /L <br />1.0 <br />101 <br />90 110 <br />Lab ID: <br />LFBD091214 -1 <br />2 <br />Laboratory Fortified Blank Duplicate <br />Run: IC2- C_140914A <br />09/12/14 12:03 <br />Chloride <br />10.4 mg /L <br />1.0 <br />104 <br />90 110 <br />1.9 <br />20 <br />Sulfate <br />41.0 mg /L <br />1.0 <br />102 <br />90 110 <br />1.7 <br />20 <br />Lab ID: <br />014090450- 001AMS <br />2 <br />Sample Matrix Spike <br />Run: IC2- C_140914A <br />09/12/14 21:38 <br />Chloride <br />11.7 mg /L <br />1.0 <br />104 <br />90 110 <br />Sulfate <br />46.1 mg /L <br />1.0 <br />102 <br />90 110 <br />Lab ID: <br />C14090450- 001AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Run: IC2- C_140914A <br />09/12/14 21:55 <br />Chloride <br />11.9 mg /L <br />1.0 <br />106 <br />90 110 <br />1.5 <br />20 <br />Sulfate <br />47.0 mg /L <br />1.0 <br />104 <br />90 110 <br />1.7 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 16 of 25 <br />