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014 * www.mwgob.com ( Helena, NT 677 -472 -0711 * Billings, MT 600 - 7354489 * Casper, WY 868 -235 -6515 <br />Am~ Easibm siau yet Gillette, WY 666 -686 -7175 * Rapid City, SG 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 />Report Date: <br />05/29/13 <br />Project: Schwartz -SW 5/4/13 S26868 S26869 <br />Work Order: <br />013050235 <br />Analyte <br />Count Result Units <br />RL <br />° /cREC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E353.2 <br />Analytical Run: SUB- B204484 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />05/13/13 10:55 <br />Nitrogen, Nitrate +Nitrite as N <br />22.7 mg /L <br />0 060 <br />104 <br />90 <br />110 <br />Method: E353.2 <br />Batch: B R204484 <br />Sample ID: MBLK <br />Method Blank <br />Run: SUB- B204484 <br />05/13/13 10:56 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.005 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB - 13204484 <br />05/13/13 10:58 <br />Nitrogen, Nitrate +Nitrite as N <br />1.03 mg /L <br />0.010 <br />105 <br />90 <br />110 <br />Sample ID: C13050235-001E <br />Sample Matrix Spike <br />Run: SUB- B204484 <br />05/13/13 11:20 <br />Nitrogen, Nitrate +Nitrite as N <br />1.07 mg /L <br />0.010 <br />104 <br />90 <br />110 <br />Sample ID: C13050235-001E <br />Sample Matrix Spike Duplicate <br />Run: SUB- B204484 <br />05/13/13 11:21 <br />Nitrogen, Nitrate +Nitrite as N <br />1.06 mg /L <br />0.010 <br />103 <br />90 <br />110 0.5 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 21 of 29 <br />