2009-05-19_REVISION - M1977416 (37)

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Zrzoin7 ENERGYL4BORAWR/ES, INC. •2393 Salt CreeA(H1g17way(82801) •PC Box 3258 • Casper, WY82802 To/l Free 888 235 0519 • 307 235 0515 • Far 307.234.1839 • casper@energy/ab.com • www energy/ab.com MMWA ' QA/QC Summary Report nt: Denison Mines (USA) Corp Report Date: 04/02/09 ect: West Sunday Mine Work Order: C09030572 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Batch: R116155 Sample ID: LRB ?_O Method Blank Run: ICPMS2-C090320A 03/20/09 13:08 Aluminum ND mg/L 0.002 Antimony ND mg/L 0.0001 Arsenic ND mg/L 0.0003 Barium ND mg/L 3E-05 Beryllium ND mg/L 6E-05 Cadmium ND mg/L 6E-05 Chromium ND mg/l. 8E-05 Cobalt ND mg/L 0.00010 Copper ND mg/L 4E-05 , Lead ND . mg/L 2E-05 Manganese ND mg/L 5E-05 Mercury ND mg/L 4E-05 Molybdenum ND mg/L 4E-05 Nickel ND mg/t. 9E-05 Selenium ND mg/L 0.001 Silver ND mg/L 2E-05 Thallium ND mg/L 3E-05 Uranium ND mg/L 8E-06 dium a ND mg/L 9E-05 0.0001 mg/L 6E-05 Sample ID: LFB 20 Laboratory Fortified Blank Run: ICPMS2-C_090320A 0320/0913:15 Aluminum 0.0472 mg/L 0.0022 94 85 115 Antimony 0.0485 mg/L 0.0010 97 85 115 Arsenic 0.0487 mg/l. 0.0010 97 85 115 Barium 0.0491 mg/L 0.0010 98 85 115 Beryllium 0.0469 mg/L 0.0010 94 85 115 Cadmium 0.0490 mg/L 0.0010 98 85 115 Chromium 0.0474 mg/L 0.0010 95 85 115 Cobalt 0.0476 mg/L 0.0010 95 85 115 Copper 0.0472 mg/L 0.0010 94 85 115 Lead 0.0485 mg/L 0.0010 97 85 115 Manganese 0.0475 mg/L 0.0010 95 85 115 Mercury 0.00495 mg/L 0.0010 99 85 115 Molybdenum 0.0494 mg/L 0.0010 99 85 115 Nickel 0.0487 mg/L 0.0010 97 85 115 Selenium 0.0490 mg/l. 0.0014 98 85 115 Silver 0.0194 mg/L 0.0010 97 85 115 Thallium 0.0485 mg/L 0.0010 97 85 115 Uranium 0.0470 mg/L 0.00030 94 85 115 Vanadium 0.0475 mg/L 0.0010 95 85 115 Zinc 0.0509 mg/L 0.0010 102 85 115 Rr Analyte reporting limit. ND - Not detected at the reporting limit. MDC - Minimum detectable concentration