1. Division of Reclamation December 4, 2006

2. Signs and Markers Place at all entrances to the permit area from public roads conspicuous signs which state "Warning Explosives in Use", which clearly explain the blast warning and all clear signals that are in use, and which explain the marking of blasting areas and charged holes within the permit area. Place at all entrances to the permit area from public roads conspicuous signs which state "Warning Explosives in Use", which clearly explain the blast warning and all clear signals that are in use, and which explain the marking of blasting areas and charged holes within the permit area. Conspicuously display signs reading "Blasting Area" along the edge of any blasting area that comes within 100 feet of any public road right of way, and at the point where any other road provides access to the blasting area. Conspicuously display signs reading "Blasting Area" along the edge of any blasting area that comes within 100 feet of any public road right of way, and at the point where any other road provides access to the blasting area.

3. Signs and Markers Blasting Area is the area near a blast within the influence of flying rock missiles, or concussion. Blasting Area is the area near a blast within the influence of flying rock missiles, or concussion. Post Blasting Area signs when: Post Blasting Area signs when: - blasting area is within 100 feet of public road

4. Signs and Markers Post Blasting Area signs when: Post Blasting Area signs when: - points of access that lead to blasting area (i.e. farm lanes) - pass on way to pit

5. Signs and Markers Conspicuously flag the immediate vicinity of charged holes. Conspicuously flag the immediate vicinity of charged holes. - main mine ID sign - main mine ID sign - orange safety cones, sign, barricades, flagging, etc. - place at all entrances to the blast pattern; - not just for DOR

6. Blast Area Security Access to an area possibly subject to flyrock from blasting shall be regulated to protect the public and livestock. Access to an area possibly subject to flyrock from blasting shall be regulated to protect the public and livestock. Access to the blasting area shall be controlled until an authorized representative of the permittee has reasonably determined that: Access to the blasting area shall be controlled until an authorized representative of the permittee has reasonably determined that: - no unusual circumstances exist - access to and travel in or through the area can be safely resumed

7. Blast Area Security Be familiar with boundaries Be familiar with boundaries – Flyrock Public roads Public roads – Block – Time – Dust

8. Blast Area Security Warning and all-clear signals of different character or pattern that are audible within a range of one-half (½) mile from the point of the blast shall be given. Warning and all-clear signals of different character or pattern that are audible within a range of one-half (½) mile from the point of the blast shall be given. - all clear should not be sounded until blast has been checked and area is determined to be safe - equipment should stay out of area

9. Blast Records Date Date Time Time Distance to Structures Distance to Structures - Coordinates - Maps - Other structures Pounds detonated per 8 ms Pounds detonated per 8 ms - Average - Whats in each hole?

10. Blast Records Keep good records Keep good records – Hole profile – Explain (airbags, etc.) Could go to court Could go to court

11. Blast Records A record of each blast, including seismograph records when obtained, shall be retained by the permittee for at least three (3) years and shall be made available for inspection by the director and the public on request. A record of each blast, including seismograph records when obtained, shall be retained by the permittee for at least three (3) years and shall be made available for inspection by the director and the public on request. - seismograph data must be in format capable of reproduction

12. Blast Records Name, certification number, and signature of the certified blaster conducting the blast. Name, certification number, and signature of the certified blaster conducting the blast. - blaster in charge signs record - certified blaster must be on mine site when loading holes

13. Seismographs Setup and operation Setup and operation - be familiar - consultant - know how to retrieve data - check regularly – especially when monitoring is required - keep field notes of readings - dont use it youll probably lose it

14. Seismographs Malfunction Malfunction Required to monitor Required to monitor - what do you put on record? - must still demonstrate compliance - regression - call us - call us

15. Compliance Vibration limits for different structures Vibration limits for different structures - houses, etc. 1 in/sec - barns, grain bins, etc. 2 in/sec - gas/water pipelines, wells, etc. 5 in/sec - wooden power poles, buried cables, etc. 9 in/sec

16. Monitoring Ground vibration Ground vibration Airblast Airblast - < trigger level - no triggers - calibrations

17. House Pit Barn

18. House Pit Barn

19. House Pit Barn GasLine

20. House Pit Barn GasLine Powerline