2009-05-19_REVISION - M1977416 (29)

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WAMIrld ENERGY LABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) • P.O. Box 3258. Casper, WY 82602 Toll Free 888 235 0515 • 307 235 0515 • Fax 307.234.1639 • casperOenergy/ab.com • www.energy/ab.com LABORATORY ANALYTICAL REPORT Client: Denison Mines (USA) Corp Project: Sunday Mine/Van 4 Lab ID: C08090686-016 Client Sample ID: DM-V4WR-1 Analyses Result Units Qualifiers RL Report Date: 10/27/08 Collection Date: Not Provided DateReceived: 09/17/08 Matrix: Solid MCL/ QCL Method Analysis Date / By i METALS - MWMP EXTRACTABLE Copper 8 ug/L 1 E200.8 10/10/08 18:15 / sml Iron ND ug/L 30 E200.7 10/13/08 15:401 cp Lead ND ug/L 1 E200.8 10/10/08 18:151 sml Lithium ND ug/L 100 E200.7 10/13/08 15:401 cp Manganese 5 ug/L 1 E200.8 10/10/08 18:15 / sml Mercury ND ug/L 1 E245.1 10/14108 21:411 eli-b Molybdenum 1220 ug/L 1 E200.8 10/10/08 18:151 smi Nickel 3 ug/L 1 E200.8 10/14/08 14:301 sml Selenium 439 ug/L 1 E200.8 10110/08 18:151 smi Silver ND ug/L 1 E200.8 10/14/08 14:301 smi Thallium ND ug/L 1 E200.8 10/10/08 18:151 smi Uranium 111 ug/L 1 E200.8 10/10/08 18:151 sml Vanadium 1520 ug/L 1 E200.7 10/13/08 15:401 cp Zinc 43 ug/L 1 E200.8 10/14/08 14:30 / sml METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury ND ug/L 1 E245.1 10/15/08 10:511 eli-b METALS - TOTAL Aluminum 5470 mg/kg-dry 0.5 SW6010B 10/03/08 02:321 cp Antimony ND mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Arsenic 44.8 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Barium 54.1 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Beryllium ND mg/kg-dry 0.5 SW6020 10/07/08 22:261 sml Boron ND mg/kg-dry 7.0 SW6010B 10/03/08 02:32 / cp Cadmium ND mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Calcium 14800 mg/kg-dry 5.0 SW6010B 10/03/08 02:321 cp Chromium 3.4 mg/kg-dry 1.6 SW6020 09/25/08 00:21 / is Cobalt 11.5 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Copper 14.9 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Iron 10500 mg/kg-dry 5.0 SW6010B 10/03/08 02:321 cp Lead 50.4 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Lithium ND mg/kg-dry 10.0 SW6010B 10/03/08 02:321 cp Magnesium 7680 mg/kg-dry 5.0 SW6010B 10/03/08 02:321 cp Manganese 109 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Mercury ND mg/kg-dry 0.05 SW7471A 10/08/08 16:021 ae Molybdenum 51.1 mg/kg-dry 0.5 SW6020 09/25/08 00:21 Its Nickel 9.7 mg/kg-dry 0.5 SW6020 09/25/08 00:21 / is Phosphorus 31.9 mg/kg-dry 10.0 SW6010B 10/11/08 03:49 / cp Potassium 2010 mg/kg-dry 25.0 SW6010B 10/03/08 02:321 cp Selenium 17.9 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is Silica 2770 mg/kg-dry 10.7 SW6010B 10/03/08 02:321 cp Silver 0.9 mg/kg-dry 0.5 SW6020 09/25/08 00:211 is 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