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Surface water will be routed around the waste pile and other surface facilities via permanent diversion <br />channels. Surface drainage within the disturbed area, with the exception of the ore pad, will be routed to <br />a sediment pond via ditches and culverts. Drainage from the ore pad area will be muted to a concrete <br />sump that will overflow to a synthetically lined pond called the lined untreated water pond. The lined <br />pond will also be used to store excess ground water pumped from the underground workings. This <br />water will be treated using a portable trailer-mounted system prior to dischazge to an ephemeral <br />drainage that flows into Lumsden Canyon. <br />Pumping and dischazge of mine water will only occur intemuttently at the Whirlwind Mine. Previous <br />studies by Umetco demonstrated that the Salt Wash sandstone contains very little water due to a limited <br />recharge azea. Most of the mine water originates from underground seeps into the ore zone from small <br />aquifers located above the mine in the Burro Canyon Formation and the Brushy Basin member of the <br />Morrison Formation. Historic and more recently collected water quality data indicate that the mine <br />water will require treatment for radionuclides prior to dischazge. Leach testing of the ore also indicates <br />a potential for generating elevated levels of radionuclides in surface water runoff from stockpiled ore. <br />~~ As an added environmental precaution, the ore pad will be compacted and graded to drain to the lined <br />untreated water pond. All stockpiled ore will also be removed from the mine surface azea prior to future <br />reclamation. EFRC is submitting a 112d permit for a Designated Mining Operation (DMO) based on <br />the need to treat ground water prior to dischazge. An Environmental Protection Plan has been included <br />that addresses containment and treatment of mine water in detail. <br />The majority of the surface facilities for the operation aze located in Colorado; however, six of the <br />seven proposed new ventilation shafts aze located in Grand County, Utah. Installation and reclamation <br />of these ventilation shafts will be addressed in a Notice of Intent to Commence Small Mining <br />Operations (i.e., five acres or less surface disturbance) with the State of Utah. One existing ventilation <br />shaft (Ten Straight) for the Packrat Mine and one proposed new ventilation shaft are located on the <br />Colorado side of the state line and have been included in this permit application. <br />The permittee for this site is Energy Fuels Resources Corporation. The name has been shortened <br />throughout this application to Energy Fuels or EFRC. <br />•~ <br />Whirlwind Mine June 07 i-3 <br />