2009-05-19_REVISION - M1977416 (29)

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ENEROYLABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) • PC. Box 3258 • Casper wY82602 To// Free 888 235 0515 • 307.235.0515 • Fax 307.234.1639 • casper@energy/ab.com • www.energy/ab.com •c• • LABORATORY ANALYTICAL REPORT Client: Denison Mines (USA) Corp Report Date: 10/27/08 Project: Sunday Mine/Van 4 Collection Date: Not Provided Lab ID: C08090686-014 DateReceived: 09/17/08 Client Sample ID: DM-WSWR-2 Matrix: Solid Analyses Result Units Qualifiers RL MCU QCL Method Analysis Date / By METALS - MWMP EXTRACTABLE Copper 32 ug/L 1 E200.8 10/10/08 17:49 / sml Iron ND ug/L 30 E200.7 10/13/08 15:23 / cp Lead 1 ug/L 1 E200.8 10/10/08 17:49 / smi Lithium ND ug/L 100 E200.7 10/13/08 15:23 / cp Manganese 9 ug/L 1 E200.8 10/10/08 17:491 smi Mercury ND ug/L 1 E245.1 10/14/08 21:23 / eli-b Molybdenum 952 ug/L 1 E200.8 10/10/08 17:49 / sml Nickel 3 ug/L 1 E200.8 10/13/08 22:201 is Selenium 2250 ug/L 1 E200.8 10/13108 22:20 / is Silver ND ug/L 1 E200.8 10/13108 22:20 / is Thallium ND ug/L 1 E200.8 10/10/08 17:49 / sml Uranium 10 ug/L 1 E200.8 10/10/08 17:49 / smi Vanadium 15900 ug/L 1 E200.8 10/10/08 17:49 / sml Zinc 82 ug/L 1 E200.8 10/10/08 17:49 / smi METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury ND ug/L 1 E245.1 10/15/08 09:42 / eli-b METALS-TOTAL Aluminum 7930 mg/kg-dry 0.5 SW6010B 09/23108 04:12 / cp Antimony ND mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Arsenic 7.4 mg/kg-dry 0.5 SW6020 09123/08 02:33 / is Barium 205 mg/kg-dry 0.5 SW6010B 09/23/08 04:121 cp Beryllium ND mg/kg-dry 0.5 SW6020 09/23108 02:33 / is Boron ND mg/kg-dry 6.4 SW6010B 09/23/08 04:12 / cp Cadmium 1.6 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Calcium 20100 mg/kg-dry 20.0 SW6010B 09/23/08 04:12 / cp Chromium 3.5 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Cobalt 2.8 mg/kg-dry 0.5 SW6020 09/23/08 02:33 ! is Copper 13.9 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Iron 5340 mg/kg-dry 5.0 SW60108 09/23108 04:121 cp Lead 25.5 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Lithium 13.5 mg/kg-dry 10.0 SW6010B 09/23/08 04:12 / cp Magnesium 5380 mg/kg-dry 15.0 SW6010B 09/23/08 04:12 I cp Manganese 144 mg/kg-dry 0.5 SW6010B 09/23108 04:12 / cp Mercury ND mg/kg-dry 0.05 SW7471A 10/08/08 15:58 / ae Molybdenum 8.5 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Nickel 3.7 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Phosphorus 485 mg/kg-dry 10.0 SW6010B 09/23/08 04:12 / cp Potassium 1330 mg/kg-dry 26.0 SW6010B 09/23/08 04:12 / cp Selenium 32.6 mg/kg-dry 0.5 SW6020 09/23/08 02:33 / is Silica 512 mg/kg-dry 59.9 SW6010B 09/23/08 04:12 / cp Silver ND mg/kg-dry 0.5 SW6020 09/23/08 02:33 / 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