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ENERGY LABORATORIES, 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 - caspergenergy/ab.com • www.energy/ab.com <br />LABORATORY ANALYTICAL REPORT <br />0 Client: Denison Mines (USA) Corp Report Date: 10/27/08 <br />Project: Sunday MineNan 4 Collection Date: Not Provided <br />Lab ID: C08090686-016 DateReceived: 09/17/08 <br />Client Sample ID: DM-V4WR-1 Matrix: Solid <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />AGRONOMIC PROPERTIES <br />Moisture 4.8 % 0.1 USDA26 09/19108 10:05 / lb <br />Lime as CaC03 6.4 % 0.1 USDA23c 09/23/08 13:00 / eli-h <br />ACID-BASE POTENTIAL <br />Neutralization Potential 64 t/kt Sobek Modifie 09/23/08 13:00 / eli-h <br />Acid Potential 1 t/kt 0.3 Sobek Modifie 09/25108 12:00 / eli-h <br />Acid/Base Potential 63 t1kt Sobek Modifie 0925108 12:00 / eli-h <br />SULFUR FORMS <br />Sulfur, Total 0.03 % 0.01 Sobek Modifie 09/30108 11:00 / eli-h <br />Sulfur, Hot Water Extractable NO % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />Sulfur, HCI Extractable NO % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />Sulfur, HN03 Extractable 0.03 % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />Sulfur, Residual NO % 0.01 Sobek Modifie 09/30/08 11:00 / eli-h <br />MAJOR IONS - MWMP EXTRACTABLE <br />Calcium 163 mg/L 1 E200.7 10/13/08 15:40 / cp <br />j? Chloride NO ug/L 1000 E300.0 <br />F C <br />0 10/17/08 07:59 / Ijl <br />35 / Ijl <br />10/10/08 12 <br />Fluoride 750 ug/L 100 A45 <br />0- : <br />Magnesium 51 mg/L 1 E200.7 10/13/08 15:40 / op <br />Nitrogen, Ammonia as N NO ug/L 30 A4500-NH3 G 10/14108 12:22 / jal <br />Nitrogen, Nitrate as N 3070 ug/L 50 E353.2 10/17/08 14:19 / sec <br />Nitrogen, Nitrate+Nitrite as N 3080 ug/L 50 E353.2 10/13/08 15:12 / jal <br />Nitrogen, Nitrite as N NO ug/L 100 A4500-NO2 B 10/10/08 12:17 / jal <br />Sulfate 538000 ug/L 1000 E300.0 10/17/08 07:59 / Ijl <br />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 1140 umhos/cm 1 A2510 B 10/14/08 14:04 / dd <br />Hardness as CaC03 617 mg/L 1 A2340 B 10/16/08 10:41 / kbh <br />pH 8.03 s.u. 0.01 A4500-H B 10114108 14:04 / dd <br />Solids, Total Dissolved TDS @ 180 C 866000 ug/L 10000 A2540 C 10/13/08 08:41 / jah <br />METALS - MWMP EXTRACTABLE <br />Aluminum NO ug/L 100 E200.8 10/10/08 18:15 / sml <br />Antimony 6 ug/L 1 E200.8 10/10/08 18:15 / sml <br />Arsenic 234 ug/L 1 E200.8 10/24/08 14:18 / is <br />Barium 39 ug/L 1 E200.8 10/10/08 18:15 / sml <br />Beryllium NO ug/L 1 E200.8 10/15/08 14:26 / sml <br />Boron NO ug/L 100 E200.7 10/13/08 15:40 / cp <br />Cadmium NO ug/L 1 E200.8 10/10/08 18:15 / sml <br />Chromium NO ug/L 1 E200.8 10/15/08 14:26 / smi <br />Cobalt 3 ug/L 1 E200.8 10/10/08 18:15 / sml <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />0 Definitions: QCL - Quality control limit. NO - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration