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�- www.mwgylab.com ( Helena, MT 571-472 -0711 • Billings, MT 600 -735 -4469 • Casper, WY 888- 235 -0515 <br />r AaalyMcsffradEraaAncs rl51 Gillette, WY 866 -666 -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: Cotter Corporation <br />Project: Schwartz SW 11/06/13 S27254 <br />Analyte Count Result Units <br />Method: D2036C <br />Report Date: 12/03/13 <br />Work Order: C13110376 <br />RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Sample ID: ICV Initial Calibration Verification Standard <br />Cyanide, Weak Acid Dissociable 0.0999 mg /L 0.0050 100 <br />Method: D2036C <br />Sample ID: LFB <br />Cyanide, Weak Acid Dissociable <br />Sample ID: ICB <br />Cyanide, Weak Acid Dissociable <br />Sample ID: C13110305 -001F <br />Cyanide, Weak Acid Dissociable <br />Sample ID: C13110305 -001F <br />Cyanide, Weak Acid Dissociable <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />90 110 <br />Laboratory Fortified Blank <br />Run: SUB- B215128 <br />0.0999 mg /L <br />0.0050 <br />100 90 110 <br />Method Blank <br />Run: SUB- B215128 <br />ND mg /L <br />0.002 <br />Sample Matrix Spike <br />Run: SUB- B215128 <br />0.109 mg /L <br />0.0050 <br />109 80 120 <br />Sample Matrix Spike Duplicate <br />Run: SUB - 13215128 <br />0.108 mg /L <br />0.0050 <br />108 80 120 <br />ND - Not detected at the reporting limit. <br />Analytical Run: SUB- B215128 <br />11/15/13 09:48 <br />Batch: B R215128 <br />11/15/13 09:51 <br />11/15/13 09:53 <br />11/15/13 10:20 <br />11/15/13 10:23 <br />0.8 10 <br />Page 9 of 24 <br />