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WWWM eWab.COM Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 a Casper, WY 888- 235 -1515 <br />MaryMaiFu>dtraaStar' yeOt Gillette, WY 866 -886 -7115 • 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: 12/05/13 <br />Project: Schwartz GW 11/15/13 S27276 Work Order: C13110695 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E353.2 Analytical Run: SUB - 6215358 <br />Sample ID: ICV Initial Calibration Verification Standard 11/20/13 09:33 <br />Nitrogen, Nitrate +Nitrate as N 22.3 mg /L 0.060 102 90 110 <br />Method: E353.2 <br />Sample ID: MBLK <br />Method Blank <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Nitrogen, Nitrate +Nitrite as N <br />1.03 mg /L <br />Sample ID: B13111640- 002AMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />1.27 mg /L <br />Sample ID: 813111640- 002AMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />1.26 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: SUB - 6215358 <br />0.001 <br />Run. SUB - 6215358 <br />0.010 103 90 110 <br />Run: SUB - 13215358 <br />0.010 106 90 110 <br />Run: SUB - 13215358 <br />0.010 105 90 110 <br />ND - Not detected at the reporting limit. <br />Batch: B R215358 <br />11/20/13 09:34 <br />11/20/13 09:36 <br />11/20/13 10:15 <br />11/20/13 10:16 <br />0.8 10 <br />Page 15 of 21 <br />