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www.enerdab.com Helena, MT 877- 472 -0711 • Billings, MIT 800- 735 -4489 • Casper, WY 888 - 235 -8515 <br />AnWaEnebm Man 1N2 Gillette, WY 866 -686 -7175 • Rapid City, SD 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 />06/27/13 <br />Project: Schwartz SW 5/22/13 S26997 TH S26998 <br />Work Order: <br />013050907 <br />Analyte Count Result Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLtmit Qual <br />Method: E353.2 <br />Batch: R174076 <br />Sample ID: MBLK -1 <br />Method Blank <br />Run: TECHNICON 130528A <br />05/28/13 10:54 <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_130528A <br />05/28/13 10:59 <br />Nitrogen, Nitrate +Nitrite as N <br />2.08 mg /L <br />0.10 <br />106 90 110 <br />Sample ID: C13050906- 001GMS <br />Sample Matrix Spike <br />Run: TECHNICON_130528A <br />05/28/13 11:04 <br />Nitrogen, Nitrate +Nitrite as N <br />2.40 mg /L <br />0.10 <br />107 90 110 <br />Sample ID: C13050906- 001GMSD <br />Sample Matrix Spike Duplicate <br />Run: TECHNICON_130528A <br />05/28/13 11:06 <br />Nitrogen, Nitrate +Nitrite as N <br />2.37 mg /L <br />0.10 <br />106 90 110 1.3 <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 />