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- www. wlDlsb.com Helena, MT 871472 -0711 • Billings, MT 600 - 735 -4488 • Casper, WY 888- 235 -1515 <br />Au&"E=hwoShwIW f Gillette, WY 866 -886 -1175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 - 680 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />10/22/13 <br />Project: Schwartz GW 9/23/13 S27095 <br />Work Order: <br />C13090867 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R178722 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH 130924A <br />09/24/13 13:47 <br />Alkalinity, Total as CaCO3 <br />ND mg /L <br />2 <br />Bicarbonate as HCO3 <br />ND mg /L <br />1 <br />Sample ID: LCS_130917 <br />Laboratory Control Sample <br />Run: MANTECH_130924A <br />09/24/13 14:02 <br />Alkalinity, Total as CaCO3 <br />255 mg /L <br />5.0 <br />102 90 110 <br />Sample ID: C13090859- 016AMS <br />Sample Matrix Spike <br />Run. MANTECH_130924A <br />09/24/13 17:56 <br />Alkalinity, Total as CaCO3 <br />372 mg /L <br />5.0 <br />103 80 120 <br />Sample ID: 013090862- 001ADUP <br />2 Sample Duplicate <br />Run: MANTECH_130924A <br />09/24/13 19:13 <br />Alkalinity, Total as CaCO3 <br />625 mg /L <br />5.0 <br />1.3 <br />10 <br />Bicarbonate as HCO3 <br />762 mg /L <br />5.0 <br />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 5 of 21 <br />