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ENERGYLABORATOR/ES, INC. • 2393 Salt Creek Highway (82601) • P.O. Box 3258 • Casper WY82602 <br />Tol/Free 888.2350515 • 3072350515 -Fax 3072341639 • casoerCdenergylab.com • www.energy/ab.com <br />•c• <br />LABORATORY ANALYTICAL REPORT <br />Client: Denison Mines (USA) Corp <br />Project: Sunday Mine/Van 4 <br />Lab ID: C08090686-017 <br />Client Sample ID: DM-V4WR-2 <br />2.5 % 0.1 USDA26 09/19/08 10:05 / lb <br />4.3 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br />43 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br />0.9 t/kt 0.3 Sobek Modifie 09/25/08 12:00 / eli-h <br />42 t/kt Sobek Modifie 09/25/08 12:00 / eli-h <br />0.03 % 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 />0.03 % 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 />122 mg/L 1 E200.7 10/13/08 16:32 / cp <br />ND ug/L 1000 E300.0 10/17/08 08:13 / Ijl <br />630 ug/L 100 A4500-F C 10/10/08 12:38 / Ijl <br />36 mg/L 1 E200.7 10/13/08 16:32 / cp <br />ND ug/L 30 A4500-NH3 G 10/14/08 12:25 / jai <br />1930 ug/L 50 E353.2 10/17/08 14:19 / sec <br />1950 ug/L 50 E353.2 10/13/08 14:47 / jai <br />ND ug/L 100 A4500-NO2 B 10/10/08 12:17 /jai <br />378000 ug/L 1000 E300.0 10/17/08 08:13 / Ijl <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 />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 514 umhos/cm <br />Hardness as CaC03 453 mg/L <br />pH 8.26 sm. <br />Solids, Total Dissolved TDS @ 180 C 640000 ug/L <br />METALS - MWMP EXTRACTABLE <br />Aluminum <br />Antimony <br />Arsenic <br />Barium <br />Beryllium <br />Boron <br />Cadmium <br />Chromium <br />Cobalt <br />Report Date: 10/27/08 <br />Collection Date: Not Provided <br />DateReceived: 09/17/08 <br />Matrix: Solid <br />1 A2510 B 10/14/08 14:06 / dd <br />1 A2340 B 10/16/08 10:41 / kbh <br />0.01 A4500-H B 10/14/08 14:06 / dd <br />10000 A2540 C 10/13/08 08:41 / jah <br />ND ug/L 100 E200.8 10/10/08 18:48 / sml <br />7 ug/L 1 E200.8 10/10108 18:48 / sml <br />238 ug/L 1 E200.8 10/24/08 14:44 / is <br />37 ug/L 1 E200.8 10/10/08 18:48 / sml <br />ND ug/L 1 E200.8 10/15/08 14:33 / sml <br />ND ug/L 100 E200.7 10/13/08 16:32 / cp <br />ND ug/L 1 E200.8 10/10/08 18:48 / sml <br />ND ug/L 1 E200.8 10/10108 18:48 / sml <br />3 ug/L 1 E200.8 10/10/08 18:48 / 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 <br /> <br />40 <br />