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Wastes <br />1. Non-mining related solid wastes (including, but not limited to, tires, hoses, and plastic <br />sheeting) would be stored in a roll-off container for off-site disposal. A mine contractor would <br />empty the container and dispose of the contents on a regular basis. Solid waste would be <br />properly disposed of in accordance with state and local regulations. <br />2. Small volumes of waste oil, crank case oil, antifreeze, and non-chlorinated solvents would be <br />stored in the maintenance shop or in locked storage containers. Waste products of these <br />chemicals collected as a result of routine vehicle and equipment maintenance would be stored in <br />steel drums in the maintenance shop or within a plastic- and earthen-lined bermed area and <br />would be picked up on a periodic basis by a mine contractor for disposal or recycling. These <br />materials would be handled and disposed of in accordance with federal, state, and local <br />regulations. All other solid wastes (including, but not limited to, tires, hoses, and plastic <br />sheeting) would be properly disposed of in accordance with state and local regulations. <br />3. A permitted septic system is located west of the Topaz Mine maintenance shop. The septic <br />system is not currently in use. However, it may be used in the future during mining operations. <br />Sanitary waste disposal service is currently provided to the Topaz Mine by portable toilets that <br />are serviced by a contractor. <br />Transportation <br />1. The Operator is responsible for ensuring that radiation levels from hauling operations fall <br />within applicable DOT limits as specified in 49 CFR 173.427(a)(1). These requirements state <br />that the external dose rate may not exceed a radiation level of 1,000 mrem/hr at 3 meters from <br />the unshielded material. Based on the grade of the uranium ore from the Sunday Mines, the <br />exposure rate would be less than 1 millirem per hour (mrem/hr) to recipients standing outside of <br />the truck. As a result, the requirements at 49 CFR 173.427(a)(1) are expected to be satisfied. <br />2. Requirements at 49 CFR 173.427(a)(5) and 173.441(a) state that under conditions normally <br />incident to transportation, the radiation level shall not exceed 200 mrem/hr at any point on the <br />external surface of the package and the transport index shall not exceed 10. These requirements <br />are also expected to be satisfied in all cases. The average reading in the occupied space of each <br />truck cab is not expected to exceed the DOT limit of 2 mrem/hr as specified in 49 CFR <br />173.441(b)(4). In addition, the Operator would perform (and document for the record) spot <br />gamma surveys on uranium ore shipments as appropriate in order to ensure that the regulatory <br />standards are satisfied. <br />3. The Operator's transportation policy specifies that ore trucks must be covered at all times, <br />with or without ore, except for loading and unloading using a tarpaulin. or other suitable <br />mechanism. With regard to accidents and other incidents involving the spillage of uranium ore, <br />the policy states that the transportation contractor is responsible for handling the accident and <br />that the contractor must have an Emergency Response Plan in case of emergency.