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www.energYlab.com <br />Air?rytlcd-ErcaAYiacr Sfoet !7t <br />472-0711 0 Billings, MT 800-735-4159 • Casper, WY 889-235-0515 <br />i,! Rapld Co, sD 888-672-1225 • College Station, TX,888-680-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/11A 1 <br />Project: Schwartz-SW 3/10/2011 S25686-S25688 Work Order: C11030378 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E353.2 Analytical Run: SUB-6162719 <br />Sample ID: ICV Initial Calibration Verification Standard 03/18/11 10:04 <br />Nitrogen, Nitrate+Nitrite as N 31.6 mg/L 0.20 107 90 110 <br />Method: E353.2 <br />Sample ID: LFB <br />Nitrogen, Nitrate+Nitrite as N <br />Sample ID: MBLK <br />Nitrogen, Nitrate+Nitrite as N <br />Sample ID: 811031502-001AMS <br />Nitrogen, Nitrate+Nitrite as N <br />Sample ID: B11031502-001AMSD <br />Nitrogen, Nitrate+Nitrite as N <br />Laboratory Fortified Blank <br />1.07 mg/L <br />Method Blank <br />ND mg/L <br />Sample Matrix Spike <br />1.20 mg/L <br />Sample Matrix Spike Duplicate <br />1.19 mg/L <br />Run: SUB-6162719 <br />0.010 109 90 110 <br />Run: SUB-8162719 <br />0.10 <br />Run: SUB-B162719 <br />0.010 110 90 110 <br />Run: SUB-13162719 <br />0.010 109 90 110 <br />Batch: B R162719 <br />03/18/11 10:07 <br />03/18/11 10:05 <br />03/18/11 12:14 <br />03/18/11 12:15 <br />0.4 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 29 <br />