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www.ener&ab.com ( Helena, W 877 - 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -0515 <br />Aw"W acaftm -V- 1.92 ) 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 />02/06/13 <br />Project: Schwartz GW 1/22/13 SSTF: S26783 <br />Work Order: <br />C13010694 <br />Analyte <br />Count Result Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2320 B <br />Batch: R169478 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH_130123B <br />01/23/13 15:20 <br />Alkalinity, Total as CaCO3 <br />4 mg /L <br />2 <br />Bicarbonate as HCO3 <br />5 mg /L <br />1 <br />Sample ID: LCS_121003 <br />Laboratory Control Sample <br />Run: MANTECH_130123B <br />01/23/13 15:36 <br />Alkalinity, Total as CaCO3 <br />156 mg /L <br />5.0 <br />101 90 110 <br />Sample ID: C13010477 -002ADUP <br />2 Sample Duplicate <br />Run: MANTECH_130123B <br />01/23/13 15:51 <br />Alkalinity, Total as CaCO3 <br />115 mg /L <br />5.0 <br />0.6 <br />10 <br />Bicarbonate as HCO3 <br />141 mg /L <br />5.0 <br />0.6 <br />10 <br />Sample ID: C13010671 -001AMS <br />Sample Matrix Spike <br />Run: MANTECH_130123B <br />01/23/13 16:11 <br />Alkalinity, Total as CaCO3 <br />316 mg /L <br />5.0 <br />101 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 19 <br />