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4.08 USE OF EXPLOSIVES 4.08.1 General Requirements Colowyo will comply with all applicable State and Federal laws in the use of explosives Colowyo will conduct all blasts that use more than five pounds of explosives or blasting agent according to the schedule required by Section 4.08.3. All surface blasting operations at the Colowyo operation will be conducted by experienced, certified, trained and wmpetent persons who understand the hazards involved. Persons responsible for blasting operations at a blasting site shall be familiar with the blasting plan and any site-specific performance standards. The blaster and at least one other person must be present at the firing of a blast. Each person responsible for blasting operations will possess a valid certification in accordance with the appropriate federal and state law. Colowyo will not conduct blasting within 1000 feet of any building used as dwelling, school, church, hospital, or nursing facility; and 500 feet of facilities, including but not limited to petroleum or gas storage facilities, fluid transmission pipelines, gas or oil collection lines or water and sewage lines. Distances to various structures of possible concern surrounding the mining area are shown on the Blasting Analysis Map (Map 26). By employing the design criteria to minimize air blast and ground vibration Colowyo will insure that-flyrock, including blasting material traveling along the ground, will not be cast from the blasting vicinity, more than half the distance to a nearby dwelling or other occupied structure and in no case beyond the line of property owned or leased by the Company or beyond the area of regulated access required under Subsection 4.08.4(5). The minimization of flyrock is also important and routinely monitored in order to reduce damage to mining equipment. 4.08-1 September 20, 2002 RN-04 CF 4.2.3.7.2