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www.energNab.com Helena, MT 877- 472 -0711 • Billings, MT 860 - 735 -4489 • Casper, WY 888- 235 -8515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 886- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Revised Date: 09/12/13 <br />Client: Cotter Corporation Report Date: 09/05/13 <br />Project: Schwartz -SW 8/7/13 S27022 Work Order: C13080331 <br />Analyte Count Result Units RL ° /oREC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036C Analytical Run: SUB - 6210231 <br />Sample ID: ICV Initial Calibration Verification Standard 08/19/13 09:23 <br />Cyanide, Weak Acid Dissociable 0.0994 mg /L 0.0050 99 90 110 <br />Method: D2036C <br />Batch: B_R210231 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB - 13210231 <br />08/19/13 0925 <br />Cyanide, Weak Acid Dissociable <br />0.101 mg /L <br />0.0050 <br />101 90 110 <br />Sample ID: ICB <br />Method Blank <br />Run SUB - 13210231 <br />08/19/13 09:28 <br />Cyanide, Weak Acid Dissociable <br />ND mg /L <br />0.002 <br />Sample ID: B13080877- 003DMS <br />Sample Matrix Spike <br />Run: SUB - 13210231 <br />08/19/13 09:42 <br />Cyanide, Weak Acid Dissociable <br />0.0980 mg /L <br />0.0050 <br />98 80 120 <br />Sample ID: B13080877- 003DMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6210231 <br />08/19/13 09:44 <br />Cyanide, Weak Acid Dissociable <br />0.0985 mg /L <br />0.0050 <br />99 80 120 <br />0.5 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 9 of 26 <br />