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www.energyiaG.com Helena,14T 671-472-0711 -Billings, MT 800-735-4489 a Casper, WY 888-235-0515 <br />Nulyttal facartaace 51ncr 705Z l Gillette, WY 866-686-7175 - Rapid City, SO 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: C10070913-007 <br />Client Sample ID: Shaft-400FT <br />Analyses Result Units <br />Report Date: 08/16/10 <br />Collection Date: 07/22/10 15:20 <br />DateReceived: 07/26/10 <br />Matrix: Aqueous <br />MCL/ <br />Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 437 pCi/L <br />Radium 226 precision (±) 4.2 pCi/L <br />Radium 226 MDC 0.15 pCi/L <br />DATA QUALITY <br />A/C Balance (t 5) -2.46 % <br />Anions 49.8 meq/L <br />Cations 47.4 meq/L <br />Solids, Total Dissolved Calculated 3070 mg/L <br />TDS Balance (0.80 - 1.20) 1.05 <br />Report RL - Analyte reposing limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />E903.0 08/04/10 12:12 / ep <br />E903.0 08/04/10 12:12 / ep <br />E903.0 08/04/10 12:12 / ep <br />Calculation 08/09/10 12:311 kbh <br />Calculation 08/09/10 12:31 / kbh <br />Calculation 08/09/10 12:311 kbh <br />Calculation 08/09/10 12:31 / kbh <br />Calculation 08109/10 12:31 / kbh <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />Page 15 of 45