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•Ze,�-, wwwtfwgoob.com Helena, MT 877- 472 -0711 • Billings, W 800- 7354489 • Casper, WY 888- 235 -0515 <br />Aulyftd E'hm Mom 102 Gillette, WY 866- 686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, T% 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />06/06/13 <br />Project: Schwartz SW 05/08/13 <br />S26872 Work Order: <br />C13050363 <br />rAnalyte <br />Count Result Units RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Clual <br />Method: E353.2 <br />Analytical <br />Run: SUB - 6204749 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />05/16/13 09:27 <br />Nitrogen, Nitrate +Nitrite as N <br />21.9 mg /L 0.060 101 90 110 <br />Method: E353.2 <br />Batch: B R204749 <br />Sample ID: MBLK <br />Method Blank Run: SUB - 13204749 <br />05/16/13 09:28 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L 0.005 <br />Sample ID: LFB <br />Laboratory Fortified Blank Run: SUB - 13204749 <br />05/16/13 09:30 <br />Nitrogen, Nitrate +Nitrite as N <br />1.03 mg /L 0.010 105 90 110 <br />Sample ID: B13051088 -001 BMS <br />Sample Matrix Spike Run: SUB- B204749 <br />05/16/13 10:09 <br />Nitrogen, Nitrate +Nitrite as N <br />1.72 mg /L 0.010 95 90 110 <br />Sample ID: B13051088 -001 BMSD <br />Sample Matrix Spike Duplicate Run: SUB - 13204749 <br />05/16/13 10:10 <br />Nitrogen, Nitrate +Nitrite as N <br />1.74 mg /L 0.010 98 90 110 1.3 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 19 of 26 <br />