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• - www.ewDlab.COM Helena, MT 877 - 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -086 -7175 • Rapid City, sD 886- 672 -1225 • College Station, T% 868 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper WY Branch <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 5 of 20 <br />Revised Date: 03/05/14 <br />Client: Cotter Corporation <br />Report Date: <br />02/18/14 <br />Project: Schwartz -GW 1/30/14 <br />S27319 <br />Work Order: <br />C14020002 <br />Analyte <br />Count Result Units <br />RL ° /.REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R183261 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH 140203B <br />02/03/14 13:56 <br />Alkalinity, Total as CaCO3 <br />0.8 mg /L <br />0.6 <br />Bicarbonate as HCO3 <br />ND mg /L <br />1 <br />Sample ID: LCS_131219 <br />Laboratory Control Sample <br />Run: MANTECH_140203B <br />02/03/14 14:09 <br />Alkalinity, Total as CaCO3 <br />258 mg /L <br />5.0 103 <br />90 110 <br />Sample ID: C14010840- 001ADUP <br />2 Sample Duplicate <br />Run: MANTECH_140203B <br />02/03/14 14:24 <br />Alkalinity, Total as CaCO3 <br />49.2 mg /L <br />5.0 <br />0.4 <br />10 <br />Bicarbonate as HCO3 <br />60.1 mg /L <br />5.0 <br />0.4 <br />10 <br />Sample ID: C14010882- 001AMS <br />Sample Matrix Spike <br />Run: MANTECH_140203B <br />02/03/14 14:40 <br />Alkalinity, Total as CaCO3 <br />275 mg /L <br />5.0 73 <br />80 120 <br />S <br />- Matrix spike recoveries outside the acceptance <br />range are considered matrix - related. <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 5 of 20 <br />