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���������������� ENERGYLABORATORIES,INC. •2393Sa11 Creek Hlglhway(82601)•P.O.Box3258 • Casper, WY82602 <br /> 1AIAAMY Toll Free 888 235 0515 • 307 235 0515 • Fax 307.234.1639 • casper@energy/ab.com-www.energylab.com <br /> �e MEW <br /> QA/QC Summary Report <br /> Client: Denison Mines(USA) Corp Report Date: 04/02/09 <br /> Project: West Sunday Mine Work Order: C09030572 <br /> Analyte Count Result Units RL °!DREG Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.7 Batch:R116509 <br /> Sample ID: LRB 7 Method Blank Run: ICP3-C_090401B 04/01/09 13:08 <br /> Boron ND mg/L 0.02 <br /> Calcium ND mg/L 0.2 <br /> Iron 0.04 mg/L 0.01 <br /> Magnesium 0.3 mg/L 0.2 <br /> Potassium ND mg/L 0.03 <br /> Silicon ND mg/L 0.03 <br /> Sodium ND mg/L 0.1 <br /> Sample ID: LFB 7 Laboratory Fortified Blank Run: ICP3-C_090401B 04/01/09 13:13 <br /> Boron 0.893 mg/L 0.10 89 80 120 <br /> Calcium 49.4 mg/L 0.50 99 80 120 <br /> Iron 4.90 mg/L 0.030 97 80 120 <br /> Magnesium 47.1 mg/L 0.50 94 80 120 <br /> Potassium 48.5 mg/L 0.50 97 80 120 <br /> Silicon 9.35 mg/L 0.032 94 80 120 <br /> Sodium 46.1 mg/L 0.50 92 80 120 <br /> Sample ID: C09030649-002DMS 7 Sample Matrix Spike Run:ICP3-C_090401B 04/01/09 19:25 <br /> Boron 0.436 mg/L 0.10 85 70 130 <br /> Calcium 132 mg/L 1.0 93 70 130 <br /> Iron 0.465 mg/L 0.030 91 70 130 <br /> Magnesium 88.4 mg/L 1.0 86 70 130 <br /> Potassium 48.4 mg/L 1.0 90 70 130 <br /> Silicon 4.29 mg/L 0.10 70 130 A <br /> Sodium 47.8 mg/L 1.0 86 70 130 <br /> Sample ID: C09030649-002DMSD 7 Sample Matrix Spike Duplicate Run: ICP3-C_090401B 04/01/09 19:30 <br /> Boron 0.393 mg/L 0.10 77 70 130 10 20 <br /> Calcium 127 mg/L 1.0 83 70 130 3.8 20 <br /> Iron 0.421 mg/L 0.030 83 70 130 9.9 20 <br /> Magnesium 83.6 mg/L 1.0 77 70 130 5.6 20 <br /> Potassium 47.0 mg/L 1.0 87 70 130 2.9 20 <br /> Silicon 3.89 mg/L 0.10 70 130 9.8 20 A <br /> Sodium 44.6 mg/L 1.0 79 70 130 7 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. A-The analyte level was greater than four times the spike level. In <br /> accordance with the method%recovery is not calculated. <br /> ND-Not detected at the reporting limit. MDC-Minimum detectable concentration <br />