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www.owdob.com Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 - 235 -0515 <br />N1P' 'last Gillette, WY 866 -686 -7175 • Rapid City, SO 888 -672 -1225 a College Station, TX 888- 680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -SW 9/24/14 S27703 and S27704 <br />Analyte Count Result Units <br />Method: E200.8 <br />Report Date: 10/03/14 <br />Work Order: 014090957 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICPMS4- C_141002A <br />Lab ID: ICV Initial Calibration Verification Standard 10/02/14 16:20 <br />Uranium 0.0458 mg /L 0.00030 92 90 110 <br />Method: <br />E200.8 <br />Lab ID: <br />LRB <br />Method Blank <br />Run: ICPMS4 -C 141002A <br />Uranium <br />2E -05 mg /L <br />9E -06 <br />Lab ID: <br />LFB <br />Laboratory Fortified Blank <br />Run: ICPMS4- C_141002A <br />Uranium <br />0.0474 mg /L <br />0.00030 <br />95 85 115 <br />Lab ID: <br />C1 4090957-001 AMS <br />Sample Matrix Spike <br />Run: ICPMS4- C_141002A <br />Uranium <br />0.0563 mg /L <br />0.00030 <br />105 70 130 <br />Lab ID: <br />014090957- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_141002A <br />Uranium <br />0.0572 mg /L <br />0.00030 <br />107 70 130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />Batch: R191836 <br />10/02/14 16:50 <br />10/02/14 16:51 <br />10/02/14 21:36 <br />10/02/14 21:37 <br />1.6 20 <br />Page 4 of 8 <br />