2009-05-19_REVISION - M1977416 (29)

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ENERGYLABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) - P.O. Box 3258- Casper, WY82602 Toll Free 888 235 0515 - 307 235 0515 • Fax 307.234.1639 - caspenganerg),/ab. com - www energy/ab. com LABORATORY ANALYTICAL REPORT • Client: Denison Mines (USA) Corp Project: Sunday Mine/Van 4 Lab ID: 008090686-015 Client Sample ID: DM-WSWR-3 Report Date: 10/27/08 Collection Date: Not Provided DateReceived: 09/17/08 Matrix: Solid Analyses Result Units Qualifiers RL MCLJ QCL Method Analysis Date / By METALS - MWMP EXTRACTABLE Copper 21 ug/L 1 E200.8 10/10/08 17:56 / sml Iron 179 ug/L 30 E200.7 10/13/08 15:27 / cp Lead 2 ug/L 1 E200.8 10/10108 17:56 / sml Lithium NO ug/L 100 E200.7 10/13/08 15:27 / cp Manganese NO ug/L 1 E200.8 10/10/08 17:56 / sml Mercury NO ug/L 1 E245.1 10/14/08 21:38 / eli-b Molybdenum 1970 ug/L 1 E200.8 10/10/08 17:56 / sml Nickel 1 ug/L 1 E200.8 10/13/08 22:27 / is Selenium 4710 ug/L 1 E200.8 10/13/08 22:27 / is Silver NO ug/L 1 E200.8 10/13/08 22:27 / is Thallium ND ug/L 1 E200.8 10/10/08 17:56 / sml Uranium 14 ug/L 1 E200.8 10/10/08 17:56 / sml Vanadium 18300 ug/L 1 E200.8 10/10/08 17:56 / sml Zinc 68 ug/L 1 E200.8 10/10/08 17:56 / sml METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury NO ug/L 1 E245.1 10/15108 10:48 / eli-b OMETALS Aluminum 8920 mg/kg-dry 0.5 SW6010B 09/23/08 04:16 / cp Antimony NO mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Arsenic 8.2 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Barium 222 mg/kg-dry 0.5 SW60108 09/23/08 04:16 / cp Beryllium NO mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Boron NO mg/kg-dry 6.6 SW6010B 09/23108 04:16 / cp Cadmium 1.2 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Calcium 30100 mg/kg-dry 20.0 SW6010B 09/23/08 04:16 / cp Chromium 4.2 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Cobalt 3.2 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Copper 7.1 mg/kg-dry 0.5 SW6020 09123/08 02:40 / is Iron 8130 mg/kg-dry 5.0 SW6010B 09/23/08 04:16 / cp Lead 18.4 mg/kg-dry 0.5 SW6020 09/23108 02:40 / is Lithium 15.3 mg/kg-dry 10.0 SW6010B 09/23/08 04:161 cp Magnesium 5520 mg/kg-dry 15.0 SW6010B 09/23/08 04:16 / cp Manganese 204 mg/kg-dry 0.5 SW6010B 09/23/08 04:16 / cp Mercury NO mg/kg-dry 0.05 SW7471A 10/08/08 16:00 / ae Molybdenum 7.3 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Nickel 5.6 mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Phosphorus 625 mg/kg-dry 10.0 SW6010B 09/23/08 04:16 / cp Potassium 2160 mg/kg-dry 26.0 SW6010B 09/23/08 04:16 / cp Selenium 19.3 mg/kg-dry 0.5 SW6020 09123108 02:40 / is Silica 601 mg/kg-dry 62.1 SW6010B 09/23/08 04:16 / cp Silver NO mg/kg-dry 0.5 SW6020 09/23/08 02:40 / is Report RL - Analyte reporting limit. MCL - Maximum contaminant level. D 0 efinitions: QCL - Quality control limit. NO - Not detected at the reporting limit. MDC - Minimum detectable concentration