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www.enereab.com Helena, MT 877472 -0711 • Billings, MT 600- 735 -4489 • Gasper, WY 888- 235 -0515 <br />Gillette, WY 866- 686 -7175 • Rapid City, SG BBB- 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 5/16/13 S26976- S26978 & S26980- S26983 <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_130315 <br />Laboratory Control Sample <br />Alkalinity, Total as CaCO3 <br />257 mg /L <br />Sample ID: C13050677- 002ADUP <br />2 Sample Duplicate <br />Alkalinity, Total as CaCO3 <br />3040 mg /L <br />Bicarbonate as HCO3 <br />1800 mg /L <br />Sample ID: 013050678- 001AMS <br />Sample Matrix Spike <br />Alkalinity, Total as CaCO3 <br />375 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 06/12/13 <br />Work Order: C13050679 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R173739 <br />Run: MANTECH_130517C 05/17/13 14:54 <br />2 <br />1 <br />Run: MANTECH_130517C 05/17/13 15:08 <br />5.0 103 90 110 <br />Run: MANTECH_130517C 05/17/13 19:38 <br />5.0 0.2 10 <br />5.0 0.1 10 <br />Run: MANTECH_130517C 05/17/13 19:54 <br />5.0 102 80 120 <br />ND - Not detected at the reporting limit. <br />Page 11 of 37 <br />