Laserfiche WebLink
Section 6.1 Proposed Ore Storage Pad with Geomembrane Liner: PRM proposes to <br /> add the following sentences to this section. "Mined material containing 500 ppm or <br /> greater concentrations of uranium is considered ore and is to be placed on an ore <br /> storage pad. Mined material containing less than 500 ppm uranium may be placed on a <br /> development rock stockpile or segregated in a separate low-grade stockpile located on <br /> top of a development rock stockpile." <br /> 3.0 ADDITIONS TO THE ENVIRONMENTAL PROTECTION <br /> PLAN <br /> Sections 6.2, (Proposed Corrective Action for Low-Grade Stockpiles Exceeding 500 <br /> PPM Uranium), 6.2.1 (Proposed Cover Design for the Sunday Mine Low-Grade <br /> Stockpile), and 6.2.2 (Evaluation of the Proposed Sunday Low-Grade Stockpile Cover <br /> Design) are being added here to address the requested corrective action at the Sunday <br /> Low-Grade Stockpile. <br /> Section 6.2, Proposed Corrective Action for Low-Grade Stockpiles Exceeding 500 <br /> PPM Uranium: The DRMS has requested that PRM provide a plan for addressing <br /> uranium concentrations of 500 ppm or higher that have been measured in the north <br /> portion of the Sunday Mine Low-Grade Stockpile. The surface area containing the <br /> elevated levels of uranium concentrations encompasses approximately 0.5 acre of the <br /> 2.7-acre stockpile. PRM evaluated the following corrective actions. <br /> a. Shipment of this material to a uranium mill in accordance with the Ore <br /> Transportation Plan presented in Attachment A. <br /> b. Excavation and transportation of the material to a dry location in the Sunday Mine's <br /> underground workings. <br /> c. Installation of an earthen cover, consisting of 12 to 18 inches of loose development <br /> rock with uranium concentrations of less than 500 ppm, over the area that has <br /> elevated uranium concentrations. <br /> PRM contacted Energy Fuels Resources (USA) Inc. that operates the White Mesa Mill <br /> near Blanding, Utah regarding the possibility of processing this material at their mill to <br /> extract vanadium and uranium. However, a contract agreeable to both parties could not <br /> be reached. Given the relatively large area (0.5 acre) of elevated surface readings, <br /> returning the material to the underground workings would be expensive and would likely <br /> create additional costs to move the material again when the mine is restarted. <br /> Accordingly, in this case, placement of an earthen cover over the area of elevated <br /> uranium concentrations to stabilize and safeguard this material in place was selected as <br /> the preferred corrective action. The cover material will be sourced from the existing <br /> development rock stockpile with uranium concentrations of less than 500 ppm, which <br /> will limit the extent of additional surface disturbance at the site. <br /> 8 <br />