2011-08-09_REVISION - M1981185 (68)

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Mining Plan Exhibit D installed along the existing and future planned roads and the benches. (See Attachment D -1). The SWMP has also been submitted to the CDPHE and is awaiting approval. As necessary, Wildcat will submit a copy of a revised SWMP reflecting CDPHE comments when CDPHE approval has been obtained. C. Repair of May Day No 1., May Day No. 2, and Chief Portal The work plans for the various mine components follows: • The May Day No. 1 collapsed portal and bench will be repaired in accordance with the work plan presented in Attachment D -2, as illustrated on Figure D -1 and Exhibit 6.5; • The May Day No. 2 drainage work plan is presented in Attachment D- 3; and, • The Chief Portal stabilization and drainage work plan is presented in Attachment D -4. D. Mill Retrofit and Commissioning Following stabilization of the May Day No. 1 portal (See Attachment D -2), any damage to the mill equipment will be repaired. Additionally, the following modifications will be made to the mill, portal and the adit: • Aligning and repairing, and testing the ball mill in the May Day No. 1 mill; and, • Installing a filter press or suitable alternative to make a dry tailing filter cake. (See Attachment D -2 and Attachment D -5). The conceptual mill processing schematic is presented in Figure D -2 and Figure D -3. Tailings will be piped less than 50 feet in dual - walled pipe to the tailings dewatering equipment (See Attachment D -2 and Figure D -1) where the dry cake will be loaded into hoppers. The solids will be moved underground for disposal using loaders such as a skid steer. Water from the dewatering unit will be recycled through the mill as illustrated on the material and process water flow sheets Figure D -2 and Figure D -3. As -built construction drawings will be submitted 45 days following completion of construction. E. Dry Stacked Tailings Based upon preliminary sampling, Wildcat has demonstrated that the mine rock is not hazardous or toxic producing, and has demonstrated the chemicals to be used to concentrate ore will not impact the environment. (See Attachment U -4). After 100 years of mining, the La Plata River and Deadwood Gulch have not been impacted by surface or groundwater within the study area. Based on existing analytical, proposed implemented BMPs, and the fact that no impacts to water quality from historic mining have been detected, Wildcat predicts there will be no impacts from future mining Wildcat Mining Corporation May Day Idaho Mine Complex — 112d Permit Application Revised August, 2011 Exhibit D — Rule 6.4.4 Page 3 of 10