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• www.ewdab.com Helena, UT 877 - 472 -0711 • Billings, SAT 800- 735 -4482 • Casper, WY $88- 235 -0513 <br />' 1tl1C' W= INN Gillette, WY 866 -666 -7175 • Rapid City, SD 888 -672 -1225 • CoHege Station, T% 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 9/5/13 S27130 <br />Analyte <br />Count Result Units <br />Method: A2320 B <br />Sample ID: MBLK <br />2 Method Blank <br />Alkalinity, Total as CaCO3 <br />ND mg /L <br />Bicarbonate as HCO3 <br />ND mg /L <br />Sample ID: LCS_130618 <br />Laboratory Control Sample <br />Alkalinity, Total as CaCO3 <br />264 mg /L <br />Sample ID: C13090203 -001 BDUP <br />2 Sample Duplicate <br />Alkalinity, Total as CaCC3 <br />66.3 mg /L <br />Bicarbonate as HCO3 <br />80.8 mg /L <br />Sample ID: C13090204- 001AMS <br />Sample Matrix Spike <br />Alkalinity, Total as CaCO3 <br />271 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 10/02/13 <br />Work Order: C13090203 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R178007 <br />Run: MANTECH 130906A 09/06/13 14:06 <br />2 <br />1 <br />Run: MANTECH 130906A 09/06/13 14:21 <br />5.0 106 90 110 <br />Run: MANTECH 130906A 09/06/13 21:01 <br />5.0 0.7 10 <br />50 0.7 10 <br />Run: MANTECH 130906A 09/06/13 21:18 <br />5.0 105 80 120 <br />ND - Not detected at the reporting limit. <br />Page 5 of 25 <br />