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1 • www.efwdab.com � Helena, MT 877- 472 -0711 * Billings, W 800- 735 -4489 • Casper, WY 888- 235 -6515 <br />En'�'Sb°" iM Gillette, W 866 - 686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 07/08/13 <br />Project: Schwartz SW 6/5/2013 S26940 Work Order: C13060211 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036C Analytical Run: SUB- B206623 <br />Sample ID: ICV Initial Calibration Verification Standard 06/18/13 16:14 <br />Cyanide, Weak Acid Dissociable 0.0996 mg /L 0.0050 100 90 110 <br />Method: D2036C <br />Batch: B R206623 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB- B206623 <br />06/18/13 16.17 <br />Cyanide, Weak Acid Dissociable <br />0.100 mg /L <br />0.0050 <br />100 90 110 <br />Sample ID: MB <br />Method Blank <br />Run SUB- B206623 <br />06/18/13 16:19 <br />Cyanide, Weak Acid Dissociable <br />ND mg /L <br />0.002 <br />Sample ID: 813061164 -001 EMS <br />Sample Matrix Spike <br />Run- SUB- B206623 <br />06/18/13 17:11 <br />Cyanide, Weak Acid Dissociable <br />0.109 mg /L <br />0.0050 <br />106 80 120 <br />Sample ID: B13061164 -001 EMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6206623 <br />06/18/13 17:13 <br />Cyanide, Weak Acid Dissociable <br />0.108 mg /L <br />0.0050 <br />105 80 120 <br />1.1 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 27 <br />