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6.5 Geotechnical Stability Exhibit <br /> (updated 2024-10-25) <br /> 6.5 (1) The proposed permitted mining site is located on a flat bench created by previous <br /> mining operations over a century old and does not contain nor proposed to construct any <br /> geological hazards that have any potential to cause damage or loss of property or life. The <br /> slopes and grades of the access road and existing waste rock piles also created by <br /> previous mining operations over a century old and does not contain nor proposed to <br /> construct any geological hazards that have any potential to cause damage or loss of <br /> property or life. <br /> 6.5 (2)The proposed reclamation plan Exhibit D for the proposed permitted mining area <br /> does not propose any reclaimed slopes,highwalls,waste piles, embankments, or changes <br /> to the existing topography that would require an engineering stability analysis. There are <br /> no ore leaching or processing facilities at the proposed permitted mine area. <br /> 6.5 (3) The proposed mining plan Exhibit C for the proposed Permitted mining area does <br /> not propose any surface changes to the existing geological structures that would have any <br /> off-site impacts. The proposed mining plan does not propose significant changes to the <br /> current mining plan that has been in place for 30 years and has not created any off-site <br /> impacts to date. <br /> 6.5 (4)The existing approved mining operation does allow and has historically included <br /> blasting underground in its mining operations and has not impacted any surface structures <br /> or created noticeable vibrations on the surface. The proposed mining plan Exhibit C <br /> includes the limited use of Explosives as needed.No damage to any on or off-site areas <br /> will occur from blasting operations. Blasting will be low intensity and standard blasting <br /> practices and safety procedures will be strictly followed. <br /> Compromise Mine- File No. M-2024-046: <br /> Notice of Incomplete- Response to item #4 <br /> 4. Since the proposed mining plan includes blasting, Rule 6.3.3(I)(o)requires that the <br /> application include a Geotechnical Stability Exhibit which demonstrates, in accordance with <br /> Rule 6.5(4),that off-site areas will not be adversely affected by blasting during mining or <br /> reclamation operations. <br /> Please provide a revised version of the Geotechnical Stability Exhibit,with a <br /> demonstration "through appropriate blasting,vibration,geotechnical,and structural <br /> engineering analyses,that off-site areas will not be adversely affected by blasting". <br /> These analyses should be certified by a professional engineer. <br /> History of Existing Blasting practices: under State Permit P1992020 dated 7/15/1992 <br /> and USFS Operating plan dated 7/16/1985- The Compromise mine has been in operation <br />