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www.energylab.com �— Helena, MT 877472 -0711 • Billings, WT 800- 735 -4489 • Casper, WY 888 -235 -6515 <br />- AeahNnlEariMwco Sinn idSl Gillette, WY 866 -686 -7175 a Rapid City, SD 886- 672 -1225 a College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 12/10/13 <br />Project: Schwartz SW 11/6/13 S27253 S27255 S27256 Work Order: C13110305 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036C Analytical Run: SUB- B215128 <br />Sample ID: ICV Initial Calibration Verification Standard 11/15/13 09:48 <br />Cyanide, Weak Acid Dissociable 0.0999 mg /L 0.0050 100 90 110 <br />Method: D2036C <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB- B215128 <br />Cyanide, Weak Acid Dissociable <br />0.0999 mg /L <br />0.0050 <br />100 90 110 <br />Sample ID: ICB <br />Method Blank <br />Run: SUB- B215128 <br />Cyanide, Weak Acid Dissociable <br />ND mg /L <br />0.002 <br />Sample ID: C13110305-001F <br />Sample Matrix Spike <br />Run: SUB - 8215128 <br />Cyanide, Weak Acid Dissociable <br />0.109 mg /L <br />0.0050 <br />109 80 120 <br />Sample ID: C13110305-001F <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6215128 <br />Cyanide, Weak Acid Dissociable <br />0.108 mg /L <br />0.0050 <br />108 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <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 11 of 30 <br />