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ENERGY LABORATOR/ES, INC. -2393 Salt Creek Highway (82601) • P.O. Box 3258 • Casper, WY82602 <br />roll 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 Mine/Van 4 <br />Lab ID: C08090686-018 <br />Client Sample ID: DM-V4WR-3 <br />Report Date: 10/27/08 <br />Collection Date: Not Provided <br />DateReceived: 09/17/08 <br />Matrix: Solid <br />MCL/ <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 />4.0 % 0.1 USDA26 09119/08 10:06 / lb <br />9.1 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br />91 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br />0.8 t/kt 0.3 Sobek Modifie 09125/08 12:00 / eli-h <br />90 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 />46 mg/L 1 E200.7 10/13108 16:36 / cp <br />5910 ug/L 1000 E300.0 10/17/08 08:28 / Ijl <br />960 ug/L 100 A4500-F C 10/10/08 12:41 / Ijl <br />24 mg/L 1 E200.7 10/13/08 16:36 / cp <br />60 ug/L 30 A4500-NH3 G 10114/08 12:26 /jai <br />802 ug/L 50 E353.2 10/17/08 14:19 / sec <br />850 ug/L 50 E353.2 10/13/08 14:50 / jai <br />ND ug/L 100 A4500-NO2 B 10/10/08 12:18 / jal <br />107000 ug/L 1000 E300.0 10/17/08 08:28 / Ijl <br />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 512 umhos/cm <br />Hardness as CaC03 211 mg/L <br />pH 8.17 s.u. <br />Solids, Total Dissolved TDS @ 180 C 301000 ug/L <br />METALS - MWMP EXTRACTABLE <br />Aluminum 492 ug/L <br />Antimony 2 ug/L <br />Arsenic 19 ug/L <br />Barium 54 ug/L <br />Beryllium ND ug/L <br />Boron 107 ug/L <br />Cadmium ND ug/L <br />Chromium ND ug/L <br />Cobalt ND ug/L <br />1 A2510 B 10/15/08 10:35 / dd <br />1 A2340 B 10/16/08 10:41 / kbh <br />0.01 A4500-H B 10/15/08 10:35 / dd <br />10000 A2540 C 10113/08 08:41 /jah <br />100 E200.8 10/10/08 18:55 / sml <br />1 E200.8 10/10/08 18:55 / smi <br />1 E200.8 10/24/08 14:50 / is <br />1 E200.8 10/10/08 18:55 / smi <br />1 E200.8 10/15/08 14:39 / sml <br />100 E200.7 10113/08 16:36 / cp <br />1 E200.8 10/10108 18:55 / smi <br />1 E200.8 10/15/08 14:39 / smi <br />1 E200.8 10/10/08 18:55 / sml <br />Report RL - Analyte reporting limit. <br />0 Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit.