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www.energylab.com ( Helena, MT 877 - 472 -0711 • Billings, MT 660 - 735.4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SO 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 />12/05/13 <br />Project: Schwartz GW 11/15/13 <br />S27276 <br />Work Order: <br />C13110695 <br />[ Analyte <br />Count Result Units <br />RL <br />° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R180891 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH_131118B <br />11/18/13 12:56 <br />Alkalinity, Total as CaCO3 <br />ND mg /L <br />2 <br />Bicarbonate as HCO3 <br />1 mg /L <br />1 <br />Sample ID: LCS_130917 <br />Laboratory Control Sample <br />Run: MANTECH_131118B <br />11/18/13 13:10 <br />Alkalinity, Total as CaCO3 <br />263 mg /L <br />5.0 <br />105 90 110 <br />Sample ID: C13110684- 006ADUP <br />2 Sample Duplicate <br />Run: MANTECH_131118B <br />11/18/13 16:57 <br />Alkalinity, Total as CaCO3 <br />292 mg /L <br />5.0 <br />0.2 <br />10 <br />Bicarbonate as HCO3 <br />342 mg /L <br />5.0 <br />0.2 <br />10 <br />Sample ID: C13110684- 007AMS <br />Sample Matrix Spike <br />Run: MANTECH_131118B <br />11/18/13 17:15 <br />Alkalinity, Total as CaCO3 <br />422 mg /L <br />5.0 <br />108 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 5 of 21 <br />