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www.energylab.com Helena MT 877-472-0711 + Billings, MT 800-735-4489 o Casper, WY 888-235-0515 <br />Mn20WEscellaaceUnce IS57 Gillette, WY 866-686-7175 « Rapid City, SD 888-672-1225 o College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program <br />Lab ID: C10070913-008 <br />Client Sample ID: Shaft-500FT <br />Analyses Result Units <br />Report Date: 08/16/10 <br />Collection Date: 07/22/10 16:10 <br />DateReceived: 07/26/10 <br />Matrix: Aqueous <br />MCU <br />Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 290 pCi/L E903.0 08/04110 12:12 / ep <br />Radium 226 precision (±) 3.4 pCi/L E903.0 08/04/10 12:12 / ep <br />Radium 226 MDC 0.15 pCi/L E903.0 08/04/10 12:12 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -2.15 % Calculation 08/09/10 12:32 / kbh <br />Anions 49.8 meq/L Calculation 08/09/10 12:32 / kbh <br />Cations 47.7 meq/L Calculation 08/09/10 12:321 kbh <br />Solids, Total Dissolved Calculated 3080 mg/L Calculation 08/09/10 12:32 / kbh <br />TDS Balance (0.80 - 1.20) 1.05 Calculation 08/09/10 12:32 / kbh <br />Report RL - Analyle reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 17 of 45