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www.a►w#ab.coni � Helena, MT 877- 472 -0711 • Billings, MT 600 - 735 -4489 a Casper, WY 888- 235 -0515 <br />Enobw Aw Im Gillette, WY 866 -886 -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 <br />Project: Schwartz -SW 02/04/14 S27321 <br />Analyte Count Result Units <br />Method: D2036C <br />Revised Date: 03/06/14 <br />Report Date: 02/24/14 <br />Work Order: C14020109 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: SUB - 6219071 <br />Sample ID: ICV <br />Cyanide, Weak Acid Dissociable <br />Initial Calibration Verification Standard <br />0.103 mg /L 0.0050 <br />103 <br />90 <br />110 <br />02/07/14 12:57 <br />Method: D2036C <br />Batch: B R219071 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB - 13219071 <br />02/07/14 12 59 <br />Cyanide, Weak Acid Dissociable <br />0.101 mg /L <br />0.0050 <br />101 <br />90 <br />110 <br />Sample ID: ICB <br />Method Blank <br />Run: SUB - 6219071 <br />02/07/14 1302 <br />Cyanide, Weak Acid Dissociable <br />ND mg /L <br />0.002 <br />Sample ID: B14020356 -001 DMS <br />Sample Matrix Spike <br />Run: SUB - 13219071 <br />02/07/14 14:07 <br />Cyanide, Weak Acid Dissociable <br />0.116 mg /L <br />0.0050 <br />105 <br />80 <br />120 <br />Sample ID: B14020356- 001DMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 13219071 <br />02/07/14 1410 <br />Cyanide, Weak Acid Dissociable <br />0.120 mg /L <br />0.0050 <br />109 <br />80 <br />120 <br />3.7 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 />