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www.emgylab.com ! Helena, MY 877- 472 -0711 a Billings, MT 800 -735 -4469 • Casper, WY 888- 235 -8515 <br />AWWaExa6=V'" yW ) Gillette, WY 866 -686 -7175 " Rapid City, SD 888 -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 />06/18/13 <br />Project: Schwartz GW 5/15/2013 S26920 & S26921 <br />Work Order: <br />C13050697 <br />FAnalyte <br />Count Result Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R173739 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH_130517C <br />05/17/13 14:54 <br />Alkalinity, Total as CaCC3 <br />ND mg /L <br />2 <br />Bicarbonate as HCO3 <br />ND mg /L <br />1 <br />Sample ID: LCS_130315 <br />Laboratory Control Sample <br />Run: MANTECH_130517C <br />05/17/13 15:08 <br />Alkalinity, Total as CaCC3 <br />257 mg /L <br />5.0 <br />103 90 110 <br />Sample ID: C13050703- 003CMS <br />Sample Matrix Spike <br />Run: MANTECH_130517C <br />05/18/13 03:07 <br />Alkalinity, Total as CaCC3 <br />442 mg /L <br />5.0 <br />104 80 120 <br />Sample ID: C13050703- 012CDUP <br />2 Sample Duplicate <br />Run- MANTECH_130517C <br />05/18/13 04:28 <br />Alkalinity, Total as CaCO3 <br />64.6 mg /L <br />5.0 <br />0.7 <br />10 <br />Bicarbonate as HCO3 <br />78.8 mg /L <br />50 <br />0.7 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 24 <br />