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www.energylab.com Helena, MT 877- 472 -0711 • Billings, MT 600 -735 -4489 • Casper, WY 888 - 235 -0515 <br />°C1 fit Gillette, WY 866-666 -7115 • Rapid City, SD 888 -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 GW 05/18/13 S26985 & S26986 <br />Analyte Count Result Units <br />Method: E353.2 <br />Sample ID: MBLK -1 <br />Method Blank <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />Sample ID: LFB -3 <br />Laboratory Fortified Blank <br />Nitrogen, Nitrate +Nitrite as N <br />2.13 mg /L <br />Sample ID: C13050719- 008CMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />116 mg /L <br />Sample ID: 013050719- 008CMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />115 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 06/11/13 <br />Work Order: 013050721 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R173909 <br />Run: TECHNICON_130522B 05/22/13 16:22 <br />0.02 <br />Run: TECH NICON_130522B 05/22/13 16:27 <br />0.10 109 90 110 <br />Run: TECHNICON_130522B 05/22/13 16.32 <br />2.5 107 90 110 <br />Run: TECH NICON_130522B 05/22/13 16:34 <br />2.5 105 90 110 09 10 <br />ND - Not detected at the reporting limit. <br />Page 17 of 24 <br />