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• ENERGYLABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) - P. 0. Box 3258 • Casper WY82602 <br />Toll Free 888.235.0515 • 307 235 0515 • Fax 307.234.1639 - Casper@energy/ab.COm • www.energy/ab.COm <br />LABORATORY ANALYTICAL REPORT <br />Client: Denison Mines (USA) Corp <br />Project: Sunday MineNan 4 <br />Lab ID: C08090686-012 <br />Client Sample ID: DM-SJWR-3 <br />Analyses <br />Result Units Qualifier RL <br />Report Date: 10/27/08 <br />Collection Date: Not Provided <br />DateReceived: 09/17/08 <br />Matrix: Solid <br />MCU <br />QCL Method Analysis Date / By <br /> AGRONOMIC PROPERTIES <br /> Moisture 4.7 % 0.1 USDA26 09/19/08 10:03 / lb <br /> Lime as CaC03 5.3 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br /> ACID-BASE POTENTIAL <br /> Neutralization Potential 53 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br /> Acid Potential 0 t/kt 0.3 Sobek Modifre 09/25/08 12:00 / eli-h <br /> Acid/Base Potential 53 Ukt Sobek Modifie 09/25108 12:00 / eli-h <br /> SULFUR FORMS <br /> Sulfur, Total ND % 0.01 Sobek Modifre 09/30/08 11:00 / eli-h <br /> Sulfur, Hot Water Extractable ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br /> Sulfur, HCl Extractable ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br /> Sulfur, HN03 Extractable ND % 0.01 Sobek Modifie 09/30/08 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 235 mg/L 1 E200.7 10/13108 15:15 / cp <br /> Chloride 21300 ug/L 1000 E300.0 10/17/08 06:47 / Ijl <br />• Fluoride 4430 ug/L 100 A4500-F C 10/10/08 11:11 / Ijl <br /> Magnesium 80 mg/L 1 E200.7 10/13/08 15:15 / cp <br /> Nitrogen, Ammonia as N 70 ug/L 30 A4500-NH3 G 10/14/08 12:13 / jai <br /> Nitrogen, Nitrate as N 30900 ug/L 50 E353.2 10/17108 14:19 / sec <br /> Nitrogen, Nitrate+Nitrite as N 30900 ug/L 50 E353.2 10/13/08 14:34 / jai <br /> Nitrogen, Nitrite as N ND ug/L 100 A4500-NO2 B 10/10/08 12:14 / jai <br /> Sulfate 929000 ug/L 1000 E300.0 10/17108 06:47 / Ijl <br /> PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br /> Conductivity 2080 umhos/cm 1 A2510 B 10/14/08 13:53 / dd <br /> Hardness as CaC03 913 mg/L 1 A2340 B 10/14/08 10:24 / kbh <br /> pH 7.93 s.u. 0.01 A4500-H B 10/14/08 13:53 / dd <br /> Solids, Total Dissolved TDS @ 180 C 1670000 ug/L 10000 A2540 C 10/08/08 09:24 / jah <br /> METALS - MWMP EXTRACTABLE <br /> Aluminum ND ug/L 100 E200.7 10/13/08 15:15 / cp <br /> Antimony 5 ug/L 1 E200.8 10/08/08 14:21 / sml <br /> Arsenic 167 ug/L 1 E200.7 10/13/08 15:15 / cp <br /> Barium 24 ug/L 1 E200.8 10/08/08 14:21 / sml <br /> Beryllium ND ug/L 1 E200.8 10/08/08 14:21 / sml <br /> Boron 293 ug/L 100 E200.7 10/13/08 15:15 / cp <br /> Cadmium ND ug/L 1 E200.8 10/08/08 14:21 / sml <br /> Chromium ND ug/L 1 E200.8 10/08/08 14:21 / sml <br /> Cobalt ND ug/L 1 E200.8 10/08/08 14:21 / 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