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www.energylab.com j Holena, W 877-472-0711 w Billings, 19 900-735-4469 % Casper, WY 888-235-0515 <br />_ AntfyUrrlFxcoganreshice 1951 l Gillette, WY 866-686-7175 • Rapid City, SD 888472-1225 4 College Station, TX 888-690-2218 <br /> LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 08/16/10 <br />Project: Schwartzwalder Wa ter Monitoring Program Collection Date: 07/22/10 12:10 <br />Lab ID: C10070913-001 DateReceived: 07/26/10 <br />Client Sample ID: Shaft-3FT Matrix: Aqueous <br /> MCU <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 243 pCi/L E903.0 08/04110 10:071 ep <br />Radium 226 precision (t) 3.0 pC(/L E903.0 08/04/10 10:071 ep <br />Radium 226 MDC 0.15 pCVL E903.0 08/04110 10:07 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -1.76 % Calculation 08/09/10 12:27 / kbh <br />Anions 49.2 meq/L Calculation 08/09/10 12:27 / kbh <br />Cations 47.5 meq/L Calculation 08/09/10 12:27 / kbh <br />Solids, Total Dissolved Calculated 3050 mg/L Calculation 08/09/10 12:27 / kbh <br />TDS Balance (0.80 - 1.20) 1.05 Calculation 08109/10 12:27 / kbh <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentrati on <br />Page 3 of 45