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• wwmenergylab.com Helena, MT 877 -472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />E 19H Gillette, WY 866 -666 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -SW 9/3/14 S27624 <br />Analyte Count Result Units <br />Method: D2036C <br />Lab ID: LFB <br />Laboratory Fortified Blank <br />Cyanide, Weak Acid Dissociable <br />0.0932 mg /L <br />Lab ID: ICB <br />Method Blank <br />Cyanide, Weak Acid Dissociable <br />ND mg /L <br />Lab ID: LCS1 -ZnCN <br />Laboratory Control Sample <br />Cyanide, Weak Acid Dissociable <br />0.0978 mg /L <br />Lab ID: B14090484- 001EMS <br />Sample Matrix Spike <br />Cyanide, Weak Acid Dissociable <br />0.1099 mg /L <br />Lab ID: B14090484- 001EMSD <br />Sample Matrix Spike Duplicate <br />Cyanide, Weak Acid Dissociable <br />0.1114 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/24/14 <br />Work Order: C14090144 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: B R230224 <br />Run: SUB- B230224 09/09/14 11:41 <br />0.93 90 110 <br />Run: SUB- B230224 09/09/14 11:44 <br />0.002 <br />Run: SUB- B230224 09/09/14 11:47 <br />0.98 90 110 <br />Run: SUB - 8230224 09/09/14 12:03 <br />0.91 80 120 <br />Run: SUB- B230224 09/09/14 12:05 <br />0.92 80 120 0.0135563 10 <br />ND - Not detected at the reporting limit. <br />Page 9 of 24 <br />