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• ENERGYLABORATOR/ES, /NC. • 2393 Salt Creek Highway (82601) • P.O. Box 3258 -Casper, WY82602 <br />Toll Free 8882350515 - 3072390515 -fax 307234.1639 • Casper@energylab.com - www.energylab.com <br />LABORATORY ANALYTICAL REPORT <br />Client: Denison Mines (USA) Corp Report Date: 10/27/08 • <br />Project: Sunday MineNan 4 Collection Date: Not Provided <br />Lab ID: C08090686-011 DateReceived: 09/17/08 <br />Client Sample ID: DM-SJWR-2 Matrix: Solid <br /> MCU <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />AGRONOMIC PROPERTIES <br />Moisture 4.6 % 0.1 USDA26 09/19108 10:03 / lb <br />Lime as CaCO3 5.9 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br />ACID-BASE POTENTIAL <br />Neutralization Potential 59 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br />Acid Potential 0 Vkt 0.3 Sobek Modifie 09/25/08 12:00 / eli-h <br />Acid/Base Potential 59 t/kt Sobek Modifie 09/25/08 12:00 / eli-h <br />SULFUR FORMS <br />Sulfur, Total ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />Sulfur, Hot Water Extractable ND % 0.01 Sobek Modifie 09130/08 11:00 / eli-h <br />Sulfur, HCI Extractable ND % 0.01 Sobek Modifie 09/30108 11:00 / eli-h <br />Sulfur, HN03 Extractable ND % 0.01 Sobek Mode 09130/08 11:00 / eli-h <br />Sulfur, Residual ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />MAJOR IONS - MWMP EXTRACTABLE <br />Calcium 61 mg/L 1 E200.7 10/13/08 15:11 / cp <br />Chloride 44300 ug/L 1000 E300.0 10/17/08 06:33 / Ijl <br /> <br />Fluoride <br />670 <br />ug/L <br />100 <br />A4500-F C • <br />10/14/08 13:06 / Ijl <br />Magnesium 25 mg/L 1 E200.7 10/13/08 15:11 / cp <br />Nitrogen, Ammonia as N 260 ug/L 30 A4500-NH3 G 10/14/08 12:10 /jal <br />Nitrogen, Nitrate as N 136000 ug/L 50 E353.2 10/17/08 14:19 / sec <br />Nitrogen, Nitrate+Nitrite as N 136000 ug/L 50 E353.2 10/13/08 14:57 /jal <br />Nitrogen, Nitrite as N 492 ug/L 100 A4500-NO2 B 10/15/08 08:07 / sp <br />Sulfate 98300 ug/L 1000 E300.0 10/17/08 06:33 / Ijl <br />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 1740 umhos/cm 1 A2510 B 10/14/08 13:50 / dd <br />Hardness as CaC03 255 mg/L 1 A2340 B 10/16/08 10:41 / kbh <br />pH 8.61 s.u. 0.01 A4500-H B 10/14/08 13:50 / dd <br />Solids, Total Dissolved TDS @ 180 C 1240000 ug/L 10000 A2540 C 10/14/08 08:31 /jah <br />METALS - MWMP EXTRACTABLE <br />Aluminum ND ug/L 100 E200.7 10/13/08 15:11 / cp <br />Antimony ND ug/L 1 E200.8 10/14/08 14:23 / sml <br />Arsenic 11 ug/L 1 E200.8 10/24/08 13:56 / is <br />Barium 100 ug/L 1 E200.8 10/14/08 14:23 / sml <br />Beryllium ND ug/L 1 E200.8 10/15/08 14:19 / sml <br />Boron 127 ug/L 100 E200.7 10/13/08 15:11 / cp <br />Cadmium ND ug/L 1 E200.8 10/14/08 14:23 / sml <br />Chromium ND ug/L 1 E200.8 10/15/08 14:19 / sml <br />Cobalt ND ug/L 1 E200.8 10/14/08 14:23 / sml <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br /> MDC - Minimum detectable concentration •