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¦ ENERGY LABORATOR/ES, INC. -2393 Salt Creek Highway (82601) • P.O. Box 3258, Casper WY82602 <br />roll Free 8882350515 - 3072350515 • Fax 307234.1639 - casper@energylab. com - www. energy/ab. com <br />LABORATORY ANALYTICAL REPORT <br />• Client: Denison Mines (USA) Corp Report Date: 10/27/08 <br />Project: Sunday MineNan 4 Collection Date: Not Provided <br />Lab ID: 008090686-008 DateReceived: 09/17108 <br />Client Sample ID: DM-SVWR-2 Matrix: Solid <br />MCU <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />AGRONOMIC PROPERTIES <br />Moisture 4.4 % <br />Lime as CaC03 4.6 % <br />ACID-BASE POTENTIAL <br />0.1 USDA26 09/19/08 10:02 / lb <br />0.1 USDA23c 09/23/08 13:00 / eli-h <br />Neutralization Potential 46 t/kt Sobek Modifie 0923/08 13:00 / eli-h <br />Acid Potential 1 t/kt 0.3 Sobek Modifie 0925/08 12:00 I eli-h <br />Acid/Base Potential 45 t1kt Sobek Modifie 0925/08 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 ND % 0.01 Sobek Modifie 09130/08 11:00 / eli-h <br />Sulfur, HCl Extractable ND % 0.01 Sobek Modifie 09/30/08 11:00 / elkh <br />Sulfur, HN03 Extractable 0.33 % 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 187 mg/L 1 E200.7 10113/08 14:47 / cp <br />Chloride 5580 ug/L 1000 E300.0 <br />A4 <br />00 <br />F C 10108/08 18:58 / ljl <br />10/03/08 16:31 / Ijl <br />Fluoride 980 ug/L 100 - <br />5 <br />Magnesium 31 mg/L 1 E200.7 10/13/08 14:47 / cp <br />Nitrogen, Ammonia as N 30 ug/L 30 A4500-NH3 G 10114/08 12:04 / jal <br />Nitrogen, Nitrate as N 11700 ug/L 50 E353.2 10/17/08 14:19 / sec <br />Nitrogen, Nitrate+Nitrite as N 13400 ug/L 50 E353.2 10/13/08 14:19 /jal <br />Nitrogen, Nitrite as N 1720 ug/L 100 A4500-N02 B 10/10/08 12:14 / jal <br />Sulfate 853000 ug/L 1000 E300.0 10/08/08 18:58 / Ijl <br />PHYSICAL PROPERTIES - MWMP EXTRACTABLE <br />Conductivity 1850 umhos/cm 1 A2510 B 10/07/08 15:53 / dd <br />Hardness as CaC03 595 mg/L 1 A2340 B 10114/08 10:24 / kbh <br />pH 7.93 s.u. 0.01 A4500-H B 10/07/08 15:53 / dd <br />Solids, Total Dissolved TDS @ 180 C 1460000 ug/L 10000 A2540 C 10/06/08 16:08 / jah <br />METALS - MWMP EXTRACTABLE <br />Aluminum 128 ug/L 100 E200.8 10/03/08 15:16 / is <br />Antimony 4 ug/L 1 E200.8 10103108 15:16 / is <br />Arsenic 336 ug/L 1 E200.8 10/03108 15:16 / is <br />Barium 16 ug/L 1 E200.8 10/03108 15:16 / is <br />Beryllium ND ug/L 1 E200.8 10/03/08 15:16 / is <br />Boron 172 ug/L 100 E200.7 10/13/08 14:47 / cp <br />Cadmium ND ug/L 1 E200.8 10/03108 15:16 / is <br />Chromium 1 ug/L 1 E200.8 10/03/08 15:16 / is <br />Cobalt ND ug/L 1 E200.8 10/03/08 15:16 / is <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentration ND - Not detected at the reporting limit.