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RULE 2 PERMITS <br />survey and to the Division. For properties owned by Colowyo, a pre -blast survey will not be <br />necessary. In a report dated February 19, 1991 Colowyo initiated and reported on a Building <br />Condition Inspection of the Durham Ranch. Although the Durham ranch was located further than <br />one-half mile from the Permit Boundary at that time (approximately 4200 feet) the inspection was <br />nevertheless completed. The Durham Ranch residents were also presented with a copy of the <br />report. On May 20, 1997 an additional copy of the report was presented to the Durhams and also <br />a copy forwarded to the Division. A copy of -the May 20, 1997 letter can be found in Exhibit 14 - <br />Seismograph Measurements. <br />Public Notice of Blasting Schedule <br />Colowyo will republish a blasting schedule similar to the one set forth in Figure 2.05-1, Publication <br />of Blasting Schedule, in the local newspaper published in Craig, Colorado. The schedule will be <br />republished at least every 12 months. Before blasting in areas or at times not described in the <br />published blasting schedule, a revised schedule will be promptly mailed to residents or owners of <br />dwellings or persons who might regularly work within one-half mile of the area affected by <br />blasting activities. Colowyo will conduct blasting at times identified in the blasting schedule <br />(Figure 2.06-1), except in those unavoidable, hazardous situations where public or mine safety is <br />involved. Unavoidable hazardous situations are seen to exist if safety requires the following: <br />(1) Destruction of damaged or deteriorated explosives or detonators in a safe <br />manner; <br />(2) Disposal of misfires and/or undetonated explosives; <br />(3) Firing of charged holes as soon as practical after cessation of static <br />electricity or stray conditions where electric detonators are used; and <br />(4) Firing of charged holes when weather or other conditions indicate the <br />existence of a safety hazard is imminent. <br />General Blasting Procedures <br />Colowyo gives warning and all -clear signals of different character that are audible within a range <br />of one-half mile from the point of the blast. Persons working within the permit area and each <br />person who resides or regularly works within one-half mile from the blast area will be informed <br />of the meaning of the signals through appropriate instructions. Access to the immediate area of the <br />blasting site will be cleared and controlled by qualified mine personnel prior to any blast. Colowyo <br />also maintains signs in accordance with 4.02.6. All areas subject to blasting are fenced for <br />livestock. <br />To protect the public, Colowyo will regulate access to any area possibly subject to flyrock from <br />blasting within the permit area. The mine area will be identified by signs on all access roads <br />restricting entry to unauthorized personnel. Signs identifying the area as a blasting area will <br />describe the warning and all -clear signals. Four series of three short sirens and four series of three <br />long sirens will be sounded before the blast. After checking the blast, the Blasting Foreman will <br />report all clear to the barricade crews. <br />Rule 2 Permits 2.05-15 Revision Date: 5/25/18 <br />Revision No.: RN -07 <br />