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individual Colowyo Drill Reports - Figure 4 (overburden only). These blasting records, along with monthly pit records(hardcopy and electronic copy) can be used to compile all of the information necessary to re- create the blast and contain the data necessary to comply with Rule 4.08.5. Pre-Blasting Survey Pre-blasting surveys and assessments of surface structures or other structures will be conducted upon request by residents or owners of dwellings located within one-half mile of the Permit Area. A written report of the pre-blasting survey will be promptly provided to the persons requesting the survey and to the Division. For properties owned by Colowyo, a pre-blast survey will not be necessary. In a report dated February 19, 1991 Colowyo initiated and reported on a Building Condition Inspection of the Durham Ranch. Although the Durham ranch was located further than one-half mile from the Permit Boundary at that time (approximately 4200 feet) the inspection was nevertheless completed. The Durham Ranch residents were also presented with a copy of the report. On May 20, 1997 an additional copy of the report was presented to the Durhams and also a copy forwarded to the Division. A copy of the May 20, 1997 letter can be found in Exhibit 14 - Seismograph Measurements. Public Notice of Blasting Schedule Colowyo will republish a blasting schedule similar to the one set forth in Figure 1, Publication of Blasting Schedule, in the local newspaper • published in Craig, Colorado. The schedule will be republished at least every 12 months. Before blasting in areas or at times not described in the published blasting schedule, a revised schedule will be promptly mailed to residents or owners of dwellings or persons who might regularly work within one-half mile of the area affected by blasting activities. Colowyo will conduct blasting at times identified in the blasting schedule (Figure 1), except in those unavoidable, hazardous situations where public or mine safety is involved. Unavoidable hazardous situations are seen to exist if safety requires the following: (1) Destruction of damaged or deteriorated explosives or detonators in a safe manner; (2) Disposal of misfires and/or undetonated explosives; (3) Firing of charged holes as soon as practical after cessation of static electricity or stray conditions where electric detonators are used; and (4) Firing of charged holes when weather or other conditions indicate the existence of a safety hazard is imminent. General Blasting Procedures Colowyo gives warning and all-clear signals of different character that are audible within a range of one-half mile from the point of the blast. Persons working within the permit area and each person who resides or 2. o s- 2 9 Fiwrbn lea i 4~ •~ 9 1~ Redebn No. ~' R- `14