2009-06-08_REVISION - M1997032 (24)

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ENERGYLABORATORIE4 BW - 2393 Salt Creek Highway (82601) • P.O. Box 3258, Casper WY82602 Toll Free 888.235.0515 • 307750515 - Fax 307.234.1639 - caspei@energy/ab.ciom - www.energy/ab. com v v LABORATORY ANALYTICAL REPORT Client: Denison Mines (USA) Corp Report Date: 10/27/08 Project: Sunday Mine/Van 4 Collection Date: Not Provided Lab ID: C08090686-018 DateRecoWed: 09117/08 Client Sample ID: DM-V4VVR-3 Matrix: Solid ._.? MCU Analyses Resuk Units Qualifiers RL QCL Method Analysis Date / By METALS - MWMP EXTRACTABLE Copper 10 ug/L 1 E200.8 10/1010818.55 / sml Iron NO ug/L 30 E200.7 10/13/08 16:361 cp Lead 2 ug/L 1 E200.8 10/10/08 18:551 sml Lithium NO ug/L 100 E200.7 10/13/08 16:361 cp Manganese 1 ug/L 1 E200.8 10/10/0818:551 sml Mercury NO ug/L 1 E245.1 10/14108 21:451 eli-b Molybdenum 367 ug/L 1 E200.8 10/10/08 18:551 sml Nickel 5 ug/L 1 E200.8 10/15/08 14:391 sml Selenium 30 ug/L 1 E200.8 10110/0818:551 sml Silver 2 ug/L 1 E200.8 10/14/08 15:171 sml Thallium NO ug/L 1 E200.8 10/10/08 18:551 sml Uranium 2280 ug/L 1 E200.8 10110/0818:551 sml Vanadium 20 ug/L 1 E200.8 10/15/0814:391 sml Zinc 37 ug/L 1 E200.8 10/14108 15:171 sml METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury NO ug/L 1 E245.1 10/15/0810:55 / ell-b • METALS - TOTAL Aluminum 7060 mg/kg-dry 0.5 SW60108 10/03108 02:441 cp Antimony NO mg/kg-dry 0.5 SW6020 0925/08 00:411 is Arsenic 15.6 mg/kg-dry 0.5 SW6020 0925/08 00:411 is Barium 33.9 mg/kg-dry 0.5 SW6020 09/25/08 00:41 Its Beryllium NO mg/kg-dry 0.5 SW6020 10/07/08 22:391 sml Boron NO mg/kg-dry 6.1 SW60108 10/03/08 02:441 cp Cadmium NO mg/kg-dry 0.5 SW6020 0925/08 00:411 is Calcium 23600 mg/kg-dry 5.0 SW60109 10/03/08 02:441 cp Chromium 4.8 mg/kg-dry 1.6 SW6020 092508 00:411 is Cobalt 5.8 mg/kg-dry 0.5 SW6020 0925/08 00:411 is Copper 12.8 mg/kg-dry 0.5 SW6020 09/25108 00:411 is Iron 6330 mg/kg-dry 5.0 SW60106 10/03108 02:44 / cp Lead 8.5 mg/kg-dry 0.5 SW6020 0925/08 00:411 is Lithium NO mg/kg-dry 10.0 SW60108 10/03/08 02:441 cp Magnesium 14100 mg/kg-dry 5.0 SW6010B 10103/08 02:441 cp Manganese 226 mg/kg-dry 0.5 SW6020 09/25/08 00:411 is Mercury NO mg/kg-dry 0.05 SW7471A 10/08/08 16:071 ae Molybdenum 3.2 mg/kg-dry 0.5 SW6020 09/25/08 00:411 is Nickel 10.6 mg/kg-dry 0.5 SW6020 09@5/08 00:411 is Phosphorus 957 mg/kg-dry 10.0 SW60108 10103/08 02:441 cp Potassium 3440 mg/kg-dry 25.0 SW50108 10103= 02:44 / cp Selenium 1.3 mg/kg-dry 0.5 SW6020 09/25/08 00:411 is Silica 2550 mg/kg-dry 10.7 SW6010B 10103/08 02:44 / cp Silver NO mg/kg-dry 0.5 SW6020 09/25/08 00:411 t3 Repoli RL - Ana" reporting limit. MCL - Maximum contaminant level. Definitions: QCL - Quality control limit. NO - Not detected at the reporting limit. • MDC - Minimum detectable concentration