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ENERGYLABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) • P.O. 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 />Aar • <br />LABORATORY ANALYTICAL REPORT <br />Client: Denison Mines (USA) Corp <br />Project: Sunday MineNan 4 <br />Lab ID: C08090686-015 <br />Client Sample ID: DM-WSWR-3 <br />Report Date: 10/27/08 <br />Collection Date: Not Provided <br />DateReceived: 09/17/08 <br />Matrix: Solid <br />MCU <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />AGRONOMIC PROPERTIES <br />Moisture <br />Lime as CaC03 <br />ACID-BASE POTENTIAL <br />Neutralization Potential <br />Acid Potential <br />Acid/Base Potential <br />SULFUR FORMS <br />Sulfur, Total <br />Sulfur, Hot Water Extractable <br />Sulfur, HCl Extractable <br />Sulfur, HN03 Extractable <br />Sulfur. Residual <br />MAJOR IONS - MWMP EXTRACTABLE <br />Calcium <br />Chloride <br />Fluoride <br />Magnesium <br />Nitrogen, Ammonia as N <br />Nitrogen, Nitrate as N <br />Nitrogen, Nitrate+Nitrite as N <br />Nitrogen, Nitrite as N <br />Sulfate <br />4.9 % 0.1 USDA26 09/19/08 10:05 / lb <br />5.6 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br />56 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br />0 t/kt 0.3 Sobek Modifie 09/25/08 12:00 / ell-h <br />56 t/kt Sobek Modifie 09/25/08 12:00 / eli-h <br />ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />ND % 0.01 Sobek Modifie 09/30108 11:00 / eli-h <br />ND % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />45 mg/L 1 E200.7 10/13108 15:27 / cp <br />50500 ug/L 1000 E300.0 10/17/08 07:45 / Ijl <br />1650 ug/L 100 A4500-F C 10/10/08 12:32 / Ijl <br />11 mg/L 1 E200.7 10/13/08 15:27 / cp <br />90 ug/L 30 A4500-NH3 G 10/14/08 12:21 /jai <br />70900 ug/L 50 E353.2 10/17108 14:19 / sec <br />72100 ug/L 50 E353.2 10/13/08 14:59 /jai <br />1180 ug/L 100 A4500-NO2 B 10/10/08 12:17 / jal <br />262000 ug/L 1000 E300.0 10/17/08 07:45 / Ijl <br />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 1660 umhos/cm <br />Hardness as CaC03 159 mg/L <br />pH 8.98 s.u. <br />Solids, Total Dissolved TDS @ 180 C 1130000 ug/L <br />METALS - MWMP EXTRACTABLE <br />Aluminum 232 ug/L <br />Antimony 4 ug/L <br />Arsenic 151 ug/L <br />Barium 92 ug/L <br />Beryllium ND ug/L <br />Boron 225 ug/L <br />Cadmium ND ug/L <br />Chromium 2 ug/L <br />Cobalt ND ug/L <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentratio n <br />1 A2510 B 10/14/08 14:00 / dd <br />1 A2340 B 10/14/08 10:24 / kbh <br />0.01 A4500-H B 10/14/08 14:00 / dd <br />10000 A2540 C 10/13/08 08:41 /jah <br />100 E200.8 10/10/08 17:56 / sml <br />1 E200.8 10/10/08 17:56 / sml <br />1 E200.8 10/13/08 22:27 / is <br />1 E200.8 10/10/08 17:56 / sml <br />1 E200.8 10/13/08 22:27 / is <br />100 E200.7 10113/08 15:27 / cp <br />1 E200.8 10/10/08 17:56 / sml <br />1 E200.8 10/10/08 17:56 / sml <br />1 E200.8 10/10/08 17:56 / sml <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />• <br />• <br />•