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www. mmilab.com Helena, MT 877472 -0711 • Billings, MT 000- 7354489 a Casper, WY 888- 235 -8515 <br />Im Gillette, WY 856- 686 -7175 • Rapid City, SD 8BB- 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 />06/18/13 <br />Project: Schwartz GW 5/15/2013 S26920 & S26921 <br />Work Order: <br />C13050697 <br />[Analyte <br />Count Result Units <br />R <br />° /aREC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E353.2 <br />Batch: R173787 <br />Sample ID: MBLK -1 <br />Method Blank <br />Run: TECHNICON-1 30520A <br />05/20/13 1026 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.02 <br />Sample ID: LFB -3 <br />Laboratory Fortified Blank <br />Run. TECHNICON_130520A <br />05/20/13 10:31 <br />Nitrogen, Nitrate +Nitrite as N <br />2.06 mg /L <br />0.10 <br />105 90 110 <br />Sample ID: 013050695- 011DMS <br />Sample Matrix Spike <br />Run: TECHNICON_130520A <br />05/20/13 13:31 <br />Nitrogen, Nitrate +Nitrite as N <br />2.09 mg /L <br />0.10 <br />107 90 110 <br />Sample ID: 013050695- 011DMSD <br />Sample Matrix Spike Duplicate <br />Run: TECHNICON_130520A <br />05/20/13 13:34 <br />Nitrogen, Nitrate +Nitrite as N <br />2.08 mg /L <br />0.10 <br />106 90 110 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 16 of 24 <br />