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May Day Idaho Mine Complex 112 (d) Permit Application <br />• 'Tailings Disposal: Preliminary evaluation of the mine rock (Exhibit T, Sections <br />6.4.20.5 -7) indicates that it is suitable for disposal within the May Day No. 1 <br />stope of the underground workings. Further testing of the tailings is required as <br />detailed in the Environmental Protection Plan (Exhibit T, Section 6.4.20.19). Up <br />to 5,000 tons of tailings will be produced during this phase and will be <br />temporarily stored in the stope until a final disposal plan has been approved by the <br />Division. The suitability of the stope for tailings disposal will also be evaluated <br />once access is granted and the fact that the stope is dry can be confirmed. <br />A final process description will be provided to the Division within 30 days of the <br />completion of the optimization phase. <br />3. Phase 3 - Production Phase: May Day No 1. Operational Area <br />Following milling optimization, production will begin on the remaining ore stockpiled <br />within the May Day No. 1 Stope (approximately 7,000 tons). Mining will then <br />commence at zones of mineralization in the vicinity of the May Day Vein. Current <br />reserve estimates indicate mining will continue for a minimum of 5 years at a rate of 35- <br />100 tons per day, 365 days per year. <br />Blasting, will be done in accordance with the protocols described in the Geotechnical <br />Stability Exhibit. <br />is All work will be performed in accordance with MSHA regulations and include <br />appropriate personal protection equipment. The following workers will be engaged in <br />mining activities: <br />• Three workers will be involved in blasting activities; <br />• Two workers will be involved in ore removal and transport to the mill; <br />• Three workers will be involved in mill operations: one worker loading rock into <br />the ore bins and monitoring tailings production and two workers monitoring <br />gauges and pumps. <br />Power to the mill will be provided by 110kW diesel powered gensets. Diesel fuel will be <br />stored and handled in accordance with the Environmental Protection Plan (Exhibit T, <br />Section 6.4.20.7) <br />• <br />May Day Idaho Mine Complex 112(d) Permit Application <br />September 21, 2010 <br />4 <br />