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www.errergylab.com j Helena, MT 677 -472 -0711 • Billings, W 800 - 735 -4489 • Casper, WY 886- 235 -0515 <br />°0 9 =1W J Gillette, wY 866 -666 -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: 08/08/13 <br />Project: Schwartz -GW 7/10/13 S27017 Work Order: C13070431 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E353.2 Analytical Run- SUB - 6208131 <br />Sample ID: ICV Initial Calibration Verification Standard 07/15/13 09:18 <br />Nitrogen, Nitrate +Nitrite as N 22.1 mg /L 0.060 101 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 />1.02 mg /L <br />Sample ID: B13071034- 001AMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />1.78 mg /L <br />Sample ID: B13071034- 001AMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />1.79 mg /L <br />Sample ID: B13070984- 002BMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />1.08 mg /L <br />Sample ID: B13070984- 002BMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />1.09 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 14 of 20 <br />Batch: B R208131 <br />Run: SUB- B208131 <br />07/15/13 09:19 <br />0.005 <br />Run: SUB - 6208131 <br />07/15/13 09:21 <br />0.010 <br />102 <br />90 <br />110 <br />Run: SUB- B208131 <br />07/15/13 10:00 <br />0.010 <br />103 <br />90 <br />110 <br />Run: SUB - 13208131 <br />07/15/13 10:01 <br />0.010 <br />104 <br />90 <br />110 <br />0.3 10 <br />Run: SUB - 6208131 <br />07/15/13 09:43 <br />0.010 <br />102 <br />90 <br />110 <br />Run: SUB- B208131 <br />07/15/13 09:44 <br />0.010 <br />103 <br />90 <br />110 <br />0.7 10 <br />ND - Not detected at the reporting limit. <br />Page 14 of 20 <br />