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• St Jude - Permit dated 1978 <br />• Topaz - Permit dated 1979 <br />Section 2 <br />Potential for Adverse Impacts <br />The development rock piles were initially constructed during driving of the access <br />tunnels into the mines, and additional rock is placed on the facilities during the mine <br />development process. Surface work at the Sunday mine began in 1973, in an area <br />adjacent to the original old Sunday Mine, with a double shift operation, driving the <br />first 800 feet (ft) of decline to the known ore intercepts and breaking into the old <br />Sunday Mine Workings. Ore production started in February 1974, with ore shipments <br />going to an off -site mineral processing mill. In March 1981, the West Sunday Mine <br />was started by driving a 2400 ft decline to ore body. The decline as of May 1984 was <br />600 feet deep. No production had come out of the West Sunday as of 1984. <br />2.1.2 Temporary Ore Stockpiles <br />No mineral processing is conducted at the Sunday Mines Group, and therefore, ore is <br />only present in temporary stockpiles. Ore is typically transported from the mine via <br />end dump haul trucks and dumped directly into temporary ore stockpiles. These <br />stockpiles are located in close proximity to the portal entrances, directly on the <br />development rock piles. Stockpile areas are shown on Figures 2 -1 through 2 -5. The <br />area of a typical ore stockpile is approximately 0.1 to 0.2 acres. The ore is loaded for <br />transport to the mill when an estimated 1,000 to 4,000 tons of ore are available in the <br />ore stockpiles. Ore is removed and transported to the Denison's White Mesa Mill in <br />Utah as frequently as daily to weekly. <br />Ore is transported in accordance with U.S. Department of Transportation (DOT) <br />regulations found in Title 49 Code of Federal Regulations (CFR) 171, which sets forth <br />DOT requirements for shipping of source material including uranium ores. Consistent <br />with this regulation, Denison has in place a current Transportation Policy for Shipments <br />of Colorado Plateau Uranium Ores to the White Mesa Mill dated July 5, 2007, included as <br />Attachment A. The truck beds are covered with tarps that fit tightly over the top edge <br />of the truck and are secured approximately one foot below the top edge of the truck to <br />prevent fugitive dust emissions. <br />2.2 Evaluation of Potential for Adverse Impacts at Specified <br />Facilities <br />In accordance with HRMMR § 6.4.20(1), this section provides evaluation of the <br />potential for adverse impacts related to designated chemicals, acid- or toxic forming <br />materials, or acid mine drainage at the Sunday Mines Group. Denison has completed <br />extensive geochemical characterization work on development rock and ore at the <br />Sunday Mines Group. This section provides a summary of the results of this work. <br />Additional information is presented in Section 13 of this document and in <br />Environmental Geochemistry Investigation of Rock and Soil Material Sunday Group Mines <br />(CDM 2009), which is included in this document as Attachment B. <br />C \Userslcwoodward1 Desktop \Sundays \FINAL - Environmental Protection Plan Sunday Mines Revised January 2012 docx <br />2 -3 <br />