2009-05-19_REVISION - M1977416 (29)

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ENERGY LAHORATOR/ES, INC -2393 Salt Creek Highway (82601) - P.O. Box 3258 -Caspar, WY82602 roll Free 888 235 0515 - 307 235 0515 - Fax 307.234.1639 - caspei@energy/ab.com • www.energy/ab.com LABORATORY ANALYTICAL REPORT • Client: Denison Mines (USA) Corp Report Date: 10/27/08 Project: Sunday Mine/Van 4 Collection Date: Not Provided Lab ID: C08090686-013 DateReceived: 09/17/08 Client Sample ID: DM-WSWR-1 Matrix: Solid Analyses Result Units Qualifiers RL MCL/ QCL Method Analysis Date / By METALS - MWMP EXTRACTABLE Copper 76 ug/L 1 E200.8 10/10/08 17:43 / sml Iron ND ug/L 30 E200.7 10/13/0815:19 / cp Lead 3 ug/L 1 E200.8 10/10/08 17:43 / sml Lithium ND ug/L 100 E200.7 10/13/08 15:19 / cp Manganese 5 ug/L 1 E200.8 10/10/08 17:43 / sml Mercury ND ug/L 1 E245.1 10/14/08 21:21 / eli-b Molybdenum 505 ug/L 1 E200.8 10/10/08 17:43 / sml Nickel 17 ug/L 1 E200.8 10/13/08 22:13 / is Selenium 1870 ug/L 1 E200.8 10/13/08 22:13 / is Silver ND ug/L 1 E200.8 10/13/08 22:13 / is Thallium ND ug/L 1 E200.8 10/10/08 17:43 / sml Uranium 41 ug/L 1 E200.8 10/10/08 17:43 / sml Vanadium 4160 ug/L 1 E200.8 10/10/08 17:43 / sml Zinc 1020 ug/L 1 E200.8 10/10/08 17:43 / sml METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury ND ug/L 1 E245.1 10/15/08 09:40 / eli-b *METALS-TOTAL Aluminum 9310 mg/kg-dry 0.5 SW6010B 09/23/08 04:08 / cp Antimony ND mg/kg-try 0.5 SW6020 09/23/08 02:26 / is Arsenic 4.5 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Barium 223 mg/kg-dry 0.5 SW6010B 09/23/08 04:08 / cp Beryllium 0.5 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Boron ND mg/kg-dry 7.2 SW6010B 09123/08 04:08 / cp Cadmium 0.9 mg/kg-dry 0.5 SW6020 09/23108 02:26 / is Calcium 28900 mg/kg-dry 20.0 SW6010B 09/23/08 04:08 / cp Chromium 4.2 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Cobalt 2.8 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Copper 6.6 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Iron 7880 mg/kg-dry 6.0 SW6010B 09/23/08 04:08 / cp Lead 10.0 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Lithium 13.2 mg/kg-dry 10.0 SW6010B 09/23/08 04:08 / cp Magnesium 5570 mg/kg-dry 15.0 SW6010B 09/23/08 04:08 / cp Manganese 228 mg/kg-dry 0.5 SW6010B 09/23/08 04:08 / cp Mercury ND mg/kg-dry 0.05 SW7471A 10/08/08 15:50 / ae Molybdenum 1.8 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Nickel 5.1 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Phosphorus 688 mg/kg-dry 10.0 SW6010B 10/03/08 01:51 / cp Potassium 2460 mg/kg-dry 30.0 SW6010B 09/23/08 04:08 / cp Selenium 11.5 mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Silica 466 mg/kg-dry 68.5 SW6010B 09/23/08 04:08 / cp Silver ND mg/kg-dry 0.5 SW6020 09/23/08 02:26 / is Report RL -Analyte reporting limit. MCL - Maximum contaminant level 0 Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. MDC - Minimum detectable concentration