2009-05-19_REVISION - M1977416 (29)

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ENERGYLAHORATOR/ES, INC. • 2393 Salt Creek Highway (82601) - P.O. Box 3258 -Casper, WY82602 Toll Free 888.235.0515 - 307235.0515 - Fax 307234.1639 - casper@onorgylab.com - www.onergylab.com LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Denison Mines (USA) Corp Sunday Mine/Van 4 C08090686-010 DM-SJWR-1 Report Date: 10/27/08 • Collection Date: Not Provided DateReceived: 09/17/08 Matrix: Solid MCLJ Analyses Result Units Qualifiers RL QCL Method Analysis Date I By METALS - MWMP EXTRACTABLE Copper 2 ug/L 1 E200.8 10/08108 13:47 / smi Iron ND ug/L 30 E200.7 10/13/08 15:07 / cp Lead ND ug/L 1 E200.8 10/08/08 13:47 / sml Lithium ND ug/L 100 E200.7 10/13108 15:07 / cp Manganese 4 ug/L 1 E200.8 10/08/08 13:47 / sml Mercury ND ug/L 1 E245.1 10/14/08 21:14 / eli-b Molybdenum 132 ug/L 1 E200.8 10/08/08 13:47 / smi Nickel ND ug/L 1 E200.8 10/08/08 13:47 / smi Selenium 1010 ug/L 1 E200.8 10/08/08 13:47 / smi Silver ND ug/L 1 E200.8 10/08/08 13:47 / sml Thallium ND ug/L 1 E200.8 10/08/08 13:47 / sml Uranium 24 ug/L 1 E200.8 10/08/08 13:47 / smi Vanadium 1310 ug/L 1 E200.8 10/08/08 13:47 / smi Zinc 48 ug/L 1 E200.8 10/08/08 13:47 / smi METALS - MWMP EXTRACTABLE TOTAL RECOVERABLE Mercury ND ug/L 1 E245.1 10/15/08 09:33 / eli-b METALS-TOTAL • Aluminum 12600 mg/kg-dry 0.5 SW6010B 09/23/08 03:44 / cp Antimony ND mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Arsenic 11.7 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Barium 1130 mg/kg-dry 0.5 SW6010B 09/23/08 03:44 / cp Beryllium 0.6 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Boron ND mg/kg-dry 8.5 SW60106 09/23/08 03:44 / cp Cadmium ND mg/kg-dry 0.5 SW6020 09/23108 02:06 / is Calcium 125000 mg/kg-dry 21.0 SW6010B 09/23108 03:44 t cp Chromium 5.8 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Cobalt 3.3 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Copper 5.6 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Iron 9750 mg/kg-dry 6.0 SW6010B 09/23/08 03:44 ! cp Lead 10.7 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Lithium 18.3 mg/kg-dry 10.0 SW6010B 09/23/08 03:44 / cp Magnesium 7380 mg/kg-dry 15.0 SW601013 09/23/08 03:44 / cp Manganese 234 mg/kg-dry 0.5 SW6010B 09123108 03:44 / cp Mercury ND mg/kg-dry 0.05 SW7471A 10103/08 16:39 ! ae Molybdenum 1.5 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Nickel 7.1 mg/kg-dry 0.5 SW6020 09/23/08 02:06 / is Phosphorus 528 mg/kg-dry 10.0 SW6010B 09/23/08 03:44 / cp Potassium 3420 mg/kg-dry 30.0 SW6010B 09/23/08 03:44 / cp Selenium 3.9 mg/kg-dry 0.5 SW6020 09/23108 02:06 / is Silica 736 mg/kg-dry 68.5 SW6010B 09/23/08 03:44 / cp Silver ND mg/kg-dry 0.5 SW6020 09/23108 02:06 / 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 0