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www.enewab.com Helena, MT 177472 -0711 • Billings, MT 861- 7354489 • Casper, WY 888 - 235 -8515 <br />Gillette, WY 866 -886 -7175 • Rapid City, SO 88B- 672 -1225 a College Station, TX 818-696 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />E300.0 <br />CCV - 100813 -05 <br />2 <br />Continuing Calibration Verification Standard <br />9.76 mg /L 1.0 <br />39.2 mg /L 10 <br />98 <br />98 <br />90 110 <br />90 110 <br />Report Date: <br />10/24/13 <br />Project: Schwartz GW 9/25/13 S27178 & S27179 <br />Work Order: <br />C13091022 <br />Analyte <br />Count Result Units <br />RL <br />/.REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E300.0 <br />10/08/13 16:54 <br />Chloride <br />ND mg /L <br />Analytical Run: IC2- C_130927A <br />Sample ID: CCV- 092713 -04 <br />2 <br />Continuing Calibration Verification <br />Standard <br />0.1 mg /L <br />09/28/13 04:55 <br />Chloride <br />10.6 mg /L <br />1.0 <br />106 <br />90 <br />110 <br />Sulfate <br />Run: IC2- C_131008A <br />41.9 mg /L <br />1.0 <br />105 <br />90 <br />110 <br />1.0 <br />Method: E300.0 <br />90 110 <br />Sulfate <br />38.1 mg /L <br />Batch: R178904 <br />Sample ID: ICB- 092713 <br />2 <br />Method Blank <br />Sample ID: <br />013100239- 011AMS <br />Run: IC2 -C <br />130927A <br />09/27/13 15:42 <br />Chloride <br />Run: IC2- C_131008A <br />ND mg /L <br />0.03 <br />11.1 mg /L <br />1.0 <br />Sulfate <br />90 110 <br />ND mg /L <br />0.07 <br />45.4 mg /L <br />1.0 <br />Sample ID: LFB- 092713 -01 <br />2 <br />Laboratory Fortified Blank <br />Sample ID: <br />C13100239- 011AMSD <br />Run: IC2- C_130927A <br />09/27/13 16:01 <br />Chloride <br />9.97 mg /L <br />1.0 <br />100 <br />90 <br />110 <br />11.3 mg /L <br />Sulfate <br />101 <br />39.4 mg /L <br />1.0 <br />99 <br />90 <br />110 <br />46.0 mg /L <br />Sample ID: C13091021- 001AMS <br />2 <br />Sample Matrix Spike <br />1.3 20 <br />Run: IC2- C_130927A <br />09/28/13 06:08 <br />Chloride <br />18.8 mg /L <br />1.0 <br />102 <br />90 <br />110 <br />Sulfate <br />56.0 mg /L <br />1.0 <br />99 <br />90 <br />110 <br />Sample ID: C13091021- 001AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Run: IC2- C_130927A <br />09/28/13 06:27 <br />Chloride <br />18.9 mg /L <br />1.0 <br />102 <br />90 <br />110 0.1 <br />20 <br />Sulfate <br />56.4 mg /L <br />1.0 <br />100 <br />90 <br />110 0.7 <br />20 <br />Method: <br />Sample ID: <br />Chloride <br />Sulfate <br />E300.0 <br />CCV - 100813 -05 <br />2 <br />Continuing Calibration Verification Standard <br />9.76 mg /L 1.0 <br />39.2 mg /L 10 <br />98 <br />98 <br />90 110 <br />90 110 <br />Analytical Run: IC2- C_131008A <br />10/09/13 10:42 <br />Method: <br />E300.0 <br />Batch: R179331 <br />Sample ID: <br />ICB - 100813 <br />2 <br />Method Blank <br />Run: IC2- C_131008A <br />10/08/13 16:54 <br />Chloride <br />ND mg /L <br />0.03 <br />Sulfate <br />0.1 mg /L <br />0.07 <br />Sample ID: <br />LFB - 100813 -01 <br />2 <br />Laboratory Fortified Blank <br />Run: IC2- C_131008A <br />10/08/13 17:12 <br />Chloride <br />9.57 mg /L <br />1.0 <br />96 <br />90 110 <br />Sulfate <br />38.1 mg /L <br />1.0 <br />95 <br />90 110 <br />Sample ID: <br />013100239- 011AMS <br />2 <br />Sample Matrix Spike <br />Run: IC2- C_131008A <br />10/09/13 11:37 <br />Chloride <br />11.1 mg /L <br />1.0 <br />99 <br />90 110 <br />Sulfate <br />45.4 mg /L <br />1.0 <br />98 <br />90 110 <br />Sample ID: <br />C13100239- 011AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Run IC2- C_131008A <br />10/09/13 11:56 <br />Chloride <br />11.3 mg /L <br />10 <br />101 <br />90 110 <br />1.3 20 <br />Sulfate <br />46.0 mg /L <br />1.0 <br />99 <br />90 110 <br />1.3 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 17 of 26 <br />