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www.ewgylab.com Helena, W 877 - 472 -0711 • Billings, W 800 - 735 -4189 • Casper, WY 886- 235 -8515 <br />AwtA"&cm6=SAwIZ2 Gillette, wy 866- 686 -7175 • Rapid City, SO 886 -672 -1225 • College Station, TX 888- 690 -2216 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/26/14 <br />Project: Schwartz - GW 2/5/14 S27350 <br />Work Order: <br />C14020159 <br />F nalyte <br />Count Result Units <br />RL <br />01AEC <br />Low Limit High Limit RPD <br />1 <br />RPDLimit Qual <br />Method: E353.2 <br />Batch: R183495 <br />Sample ID: MBLK -1 <br />Method Blank <br />Run: TECHNICON_140210A <br />02/10/14 12:42 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.05 <br />Sample ID: LFB -3 <br />Laboratory Fortified Blank <br />Run: TECHNICON_140210A <br />02/10/14 12:47 <br />Nitrogen, Nitrate +Nitrite as N <br />2.07 mg /L <br />0.10 <br />106 <br />90 110 <br />Sample ID: C14020159- 001GMS <br />Sample Matrix Spike <br />Run: TECHNICON_140210A <br />02/10/14 12:52 <br />Nitrogen, Nitrate +Nitrite as N <br />2.29 mg /L <br />0.10 <br />107 <br />90 110 <br />Sample ID: 014020159- 001GMSD <br />Sample Matrix Spike Duplicate <br />Run: TECHNICON_140210A <br />02/10/14 12:55 <br />Nitrogen, Nitrate +Nitrite as N <br />231 mg /L <br />0.10 <br />108 <br />90 110 0.9 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 14 of 20 <br />