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yv www.energylab.con Helena, MT 877-472-0711 w Billings, MT 800.735-4489 * Caspar WY 888-235-0515 <br />dealylfealFrtaflaoceSfrtc* 1952 1 Gillette, WY 866-686.7175 • Rapid City, SD 888-672-1225 ° College Station, IX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 08/16/10 <br />Project: Schwartzwalder Wate r Monitoring Program Collection Date: 07/22/10 16:30 <br />Lab 10: C10070913-009 DateReceived: 07126/10 <br />Client Sample ID: Shaft-600PT Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL OCL Method Analysis Dale! By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 317 pCUL E903.0 08104/10 12:12 / ep <br />Radium 226 precision (±) 3.6 pCUL E903.0 08/04/10 12:12 / ep <br />Radium 226 MDC 0.16 pCi/L E903.0 08/04/10 12:12 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -2.49 % Calculation 08/09/10 12:32 ! kbh <br />Anions 49.5 meq/L Calculation 08/09/10 12:321 kbh <br />Cations 47.1 meq/L Calculation 08/09/10 12:32 / kbh <br />Solids, Total Dissolved Calculated 3060 mg/L Calculation 08/09110 12:32! kbh <br />TDS Balance (0.80 - 1.20) 1.06 Calculation 08/09/10 12:321 kbh <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum delectable concentration <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />Page 19 of 45