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ENERGY LABORATORIES, INC. * 2393 Salt Creek Hwy (82601) * PO Box 3258 * Casper, WY 82602 Toll Free 888.235.0515 * 307.235.0515 * FAX 307.234.1639 * casperCaenergylab.corn * www.energylab.com LABORATORY ANALYTICAL REPORT Client: Powertech (USA) Inc Project: Centennial R2-00150 Lab ID: C08061324-001 Client Sample ID: IS-003T Report Date: 08/12/08 Collection Date: 06/25/08 10:43 DateReceived : 06/27/08 Matrix: Aqueous Analyses Result Units Qualifier RL MCL/ QCL Method Analysis Date / By METALS - DISSOLVED. Chromium ND mg/L 0.01 E200.7 07/11/08 14:05 / cp Cobalt ND mg/L 0.01 E200.7 07/11/08 14:05 / cp Copper ND mg/L 0.01 E200.7 07/11/08 14:05 / cp Iron ND mg/L 0.03 E200.7 07/11/08 14:05 / cp Lead ND mg/L 0.01 E200.8 07/21/08 22:40 / sml Manganese 0.11 mg/L 0.01 E200.7 07/11/08 14:05 / cp Mercury ND mg/L 0.0002 E200.8 07/23/08 14:08 / sml Molybdenum ND mg/L 0.01 E200.7 07/11/08 14:05 / cp Nickel ND mg/L 0.01 E200.7 07/11/08 14:05 / cp Selenium ND mg/L 0.001 E200.8 07/21/08 22:40 / sml Silver ND mg/L 0.05 E200.7 07/11/08 14:05 / cp Strontium 1.5 mg/L 0.1 E200.7 07/11/08 14:05 / cp Thallium ND mg/L 0.001 E200.8 07/21/08 22:40 / sml Uranium 0.222 mg/L 0.0003 E200.8 07/21/08 22:40 / sml Vanadium ND mg/L 0.1 E200.7 07/11/08 14:05 / cp Zinc ND mg/L 0.01 E200.7 07/11/08 14:05 / cp METALS-TOTAL Aluminum 0.7 mg/L 0.1 E200.7 07/08/08 02:05 / cp Antimony 0.066 mg/L D 0.002 E200.8 07/17/08 00:04 / is Arsenic ND mg/L 0.001 E200.8 07/17/08 00:04 / is Barium ND mg/L 0.1 E200.7 07/08/08 02:05 / cp Beryllium ND mg/L 0.001 E200.8 07/21/08 16:05 / is Boron 0.1 mg/L 0.1 E200.7 07/08/08 02:05 / cp Cadmium ND mg/L 0.001 E200.8 07/17/08 00:04 / is Calcium 96 mg/L 1 E200.7 07/08/08 02:05 / cp Chromium ND mg/L 0.01 E200.7 07/08/08 02:05 / cp Cobalt ND mg/L 0.01 E200.7 07/08/08'02:05 / cp Copper 0.02 mg/L 0.01 E200.7 07/08/08 02:05 / cp Iron 13.1 mg/L 0.03 E200.7 07/08/08 02:05 / cp Lead ND mg/L 0.01 E200.7 07/08/08 02:05 / cp Magnesium 26 mg/L 1 E200.7 07/08/08 02:05 / cp Manganese 0.22 mg/L 0.01 E200.7 07/08/08 02:05 / cp Mercury ND mg/L 0.0002 E245.1 07/07/08 21:09 / eli-b Molybdenum ND mg/L 0.01 E200.7 07/08/08 02:05 / cp Nickel ND mg/L 0.01 E200.7 07/08/08 02:05 / cp Potassium 7 mg/L 1 E200.7 07/08/08 02:05 / cp Selenium 0.002 mg/L D 0.002 E200.8 07/17/08 00:04 / is Silica 9.3 mg/L 0.1 E200.7 07/08/08 02:05 / cp Silver ND mg/L 0.05 E200.7 07/08/08 02:05 / cp Sodium 30 mg/L 1 E200.7 07/08/08 02:05 / cp Strontium 1.5 mg/L 0.1 E200.7 07/08/08 02:05 / cp Report RL - Analyte reporting limit. MCL - Maximum contaminant level. Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit . MDC - Minimum detectable concentration D - RL increased due to sample matrix interference. Attachment E