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Overall, in the absence of leach tests measuring the degree of metals mobility from <br /> the Colorado Plateau ores, and modeling parameters showing what portions of those <br /> metals may reach air and water receptors of concern, the Division should conclude that <br /> the ores have the potential to release toxic substances. The Ike No. 1 mine should <br /> be evaluated in those terms, and the ores and waste rocks should be adequately <br /> protected barring geochemical information to the contrary. <br /> CC: Bruce Humphries <br /> Tom Gillis <br /> Jim Stevens <br /> Carl Mount <br /> Jim Pendleton <br />