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• www.enerdab.com Helena, MT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />- AufAtwEx ob=Sines Im Gillette, WY 866 -686 -7175 • Rapid City, SO 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 />Project: Schwartz -SW 9/3/14 S27624 <br />Analyte <br />Count Result Units <br />Method: A2320 B <br />Lab ID: MBLK <br />2 Method Blank <br />Alkalinity, Total as CaCO3 <br />3 mg /L <br />Bicarbonate as HCO3 <br />4 mg /L <br />Lab ID: LCS_140522 <br />Laboratory Control Sample <br />Alkalinity, Total as CaCO3 <br />266 mg /L <br />Lab ID: C14090108- 001ADUP <br />2 Sample Duplicate <br />Alkalinity, Total as CaCO3 <br />140 mg /L <br />Bicarbonate as HCO3 <br />170 mg /L <br />Lab ID: C14090108- 002AMS <br />Sample Matrix Spike <br />Alkalinity, Total as CaCO3 <br />378 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/24/14 <br />Work Order: C14090144 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R190693 <br />Run: MANTECH 140904B 09/04/14 15:13 <br />0.6 <br />1 <br />Run: MANTECH_140904B 09/04/14 15:27 <br />5.0 105 90 110 <br />Run: MANTECH_140904B 09/04/14 16:01 <br />5.0 0.1 10 <br />5.0 0.1 10 <br />Run: MANTECH_140904B 09/04/14 16:17 <br />5.0 102 80 120 <br />ND - Not detected at the reporting limit. <br />Page 5 of 24 <br />