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............... <br />www.eneigylab.com Helena, MT 877-472-0711 o Billings, MT 800-735.4489 + Caspei, WY 088-235-0515 <br />IartytinlFxcelkaco5lnce 1951 Gillette, WY 866-686-7175 * Rapid City, So 888-672-1225 9 College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 08/16/10 <br />Project: Schwartzwalder Wate r Monitorin g Program Collection Date: 07122/10 16:50 <br />Lab ID: C10070913-010 DateReceived: 07/26/10 <br />Client Sample ID: Shaft-700FT Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br /> <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 315 pCVL E903.0 08/04/10 12:12 / ep <br />Radium 226 precision (±) 3.5 pCi/L E903.0 08/04110 12:12 ! ep <br />Radium 226 MDC 0.15 pCVL E903.0 06/04/10 12:121 ep <br />DATA QUALITY <br />A/C Balance (± 5) -2.98 % Calculation 08/09/10 12:331 kbh <br />Anions 50.0 meq/L Calculation 08/09/10 12:33 / kbh <br />Cations 47.1 meq/L Calculation 08/09/10 12:331 kbh <br />Solids, Total Dissolved Calculated 3080 mg/L Calculation 08/09/10 12:33,1 kbh <br />TDS Balance (0.80 - 1.20) 1.05 Calculation 08/09/10 12:33 / kbh <br />Report <br />Definitions: <br />RL - Analyte reporting limit. <br />QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />MCL - Maximum contaminant level. <br />ND - Not detected al the reporting limit. <br />Page 21 of 45