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www.energylab.com Helena, MT 877472 -0711 • Billings, MT 600 -735 -4469 a Casper, WY 888 -235 -0515 <br />�Ml 'aN1Q'&4C'r J Gillette, WY 866 -606 -7175 • Rapid City, SD 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 />06/19/13 <br />Project: Schwartz GW 5/23/2013 <br />S26999 & S27000 <br />Work Order: <br />C13050906 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R174031 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH 130524A <br />05/24/13 16:56 <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_130315 <br />Laboratory Control Sample <br />Run: MANTECH_130524A <br />05/24/13 17:11 <br />Alkalinity, Total as CaCC3 <br />253 mg /L <br />5.0 <br />101 90 110 <br />Sample ID: C13050902- 002AMS <br />Sample Matrix Spike <br />Run: MANTECH_130524A <br />05/24/13 18:16 <br />Alkalinity, Total as CaCO3 <br />364 mg /L <br />5.0 <br />102 80 120 <br />Sample ID: C13050931- 001ADUP <br />2 Sample Duplicate <br />Run: MANTECH_130524A <br />05/24/13 20:53 <br />Alkalinity, Total as CaCO3 <br />201 mg /L <br />5.0 <br />0.0 <br />10 <br />Bicarbonate as HCO3 <br />223 mg /L <br />5.0 <br />0.1 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 7 of 24 <br />