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www.mgylab.com Helena, MT 677- 472 -0711 • Billings, W 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />AWWW F'a'g1=Maw 1152 Gillette, WY 866 -6B6 -7115 • Rapid City, SO BBB -672 -1225 • College Station, TX 868- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />07/30/13 <br />Project: Schwartz -GW 7/3/13 <br />S27057 <br />Work Order: <br />C13070189 <br />Analyte <br />Count Result Units <br />RL <br />0/J9EC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R175553 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH 130705A <br />07/05/13 16:18 <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_130618 <br />Laboratory Control Sample <br />Run: MANTECH_130705A <br />07/05/13 16:34 <br />Alkalinity, Total as CaCO3 <br />254 mg /L <br />5.0 <br />102 90 110 <br />Sample lD: C13070166- 001ADUP <br />2 Sample Duplicate <br />Run: MANTECH_130705A <br />07/05/13 16:51 <br />Alkalinity, Total as CaCO3 <br />470 mg /L <br />5.0 <br />0.4 <br />10 <br />Bicarbonate as HCO3 <br />525 mg /L <br />5.0 <br />0.2 <br />10 <br />Sample ID: C13070172- 001AMS <br />Sample Matrix Spike <br />Run: MANTECH_130705A <br />07/05/13 17:08 <br />Alkalinity, Total as CaCO3 <br />310 mg /L <br />5.0 <br />97 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 5 of 20 <br />