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Voluntary—43 CFR 3809 Plan of Operations Form <br /> fc?QflKT my <br /> os appocable <br /> Geotechnical Stability <br /> This Exhibit moy be opptted to CRAMS Ht;n*wk 1101122 Geotsthnkat stob40 ExMblt oddltimci lrVormatlon maybe reguirrd. <br /> Ad&tiwal Fnjormo6on ondPormR19otlon may be induded in the correspon&ng NEPA ona4-ls far thr proposedpraject <br /> L On a site-specific basis,an Applicant shall be required to provide a geotechnical evaluatian of all geologic hazards <br /> that have the potential to affect any proposed Impoundment,slope,embankment,highwall,arwaste pile within the <br /> affected area.The Applicant may also be required to provide a geotechnical evaluation of ail geologic hazards, <br /> within or in the vicinity of the affected lands that may be de-stabilized or exacerbated by mining or reclamation <br /> activities. <br /> 2. On a site-specific:basis,an Applicant shall be required to provide engineering stability analyses for proposed final <br /> reclaimed slopes,highwalls,waste piles,embankments,and ore leach facilities.An Applicant may also be required <br /> to provide engineering stability analyses for certain slope configurations as they will occur during operations, <br /> including,but not limited to,embankments and ore leach facilities.information for slope stability analyses may <br /> include,but would not be limited to,slope angles and configurations,compaction and density,physical <br /> characteristics of earthen materials,pore pressure Information,slope height,post-placement use of site,and <br /> information on structures or facilities that could be adversely affected by slope failure. <br /> 3. Where there Is the potential for off-site impacts due to failure of any geologic structure or constructed earthen <br /> facility,which may be caused by mining or reclamation activities,the Applicant shall demonstrate through <br /> appropriate geotechnical and stability analyses that off-site areas will be protected with appropriate factors of <br /> safety incorporated into the analysis.The minimum acceptable safety factors will be subiect to review by QLM, <br /> on a casg-by-case basis,depending upon the degree of certainty of soil or rock stEgngth determinations <br /> utilized in the staWity analysis,depending upon the consequences associated with a potential failure,and <br /> depending upon the potential for seismic activity at each site. <br /> 4. At sites where blasting is part of the proposed mining or reclamation plan,the Applicant shall demonstrate through <br /> appropriate blasting,vibration,geotechnical,and structural engineering analyses,that off-site areas will not be <br /> adversely affected by blasting <br /> f d <br /> / v P <br /> �1 <br /> Page 36 of 36 <br />