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May Day and Idaho Mine Complex 112 (d) Permit Application <br />(4) The effects of blasting on adjacent structures have been conducted by Mr. Terry Morris <br />(Colorado Registered Professional Engineer No. 28457) and are presented in Attachment <br />6.5.6. Mr. Morris concludes that no structural damage is expected using up to 100 <br />pounds of explosive per blast within the Mayday No. 2 underground workings. As the <br />proposed blasting will be undertaken in the Mayday No. 1 underground workings further <br />to the east, the existing blasting analysis is sufficient. As recommended, Wildcat will <br />perform vibration monitoring if the size of the blasts exceed 220 pounds of explosive per <br />delay. It is anticipated that the contractor conducting daily blasting will be Franklin <br />Drilling & Blasting under the permits identified in Attachment 6.5.7. <br />• <br />• <br />May Day Idaho Mine Complex 112(d) Permit Application <br />September 21, 2010 <br />