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analyzed to look at the factor of safety. Table GS-1 lists the analysis conducted and their <br /> respective factors of safety. <br /> The lowest factor of safety for permanent slopes was 1.91 at Final Reclamation. While the <br /> Active Highwall has a Factor of Safety below the CDRMS permanent slope minimum (1.5), the <br /> FoS = 1.5 failure circle was calculated to determine if that failure circle would cause offsite <br /> damage. The distance between the lower FoS failure circle or the FoS = 1.5 failure circle is also <br /> shown in Table GS-1. <br /> GALENA data tables and analysis result figures are attached as Appendix GS-1. <br /> . . - - . . . . . . . . <br /> - - - - - - - - - - <br /> . L <br /> MIN 12 5'FROM POWERLINES ➢.. <br /> INFLOWIOUTFLOW STRUCTURE � <br /> SEE DETAILS 1&2 <br /> _ 1 <br /> RELIEF DITCH <br /> MIN 15'FROM DITCH <br /> \ POST MINE LAND USE <br /> GROUNDWATER LAKE <br /> 12 5 acres <br /> BERMS FLATTENED 1 -aear <br /> � <br /> r <br /> 10'MAI NTAINED ON EACH - <br /> SIDE OF ACCESS ROAD - <br /> __ `- , CULVERT <br /> r <br /> SITE ACCESS I i <br /> 3\ <br /> Figure GS-1. Locations of Slope Stability Analysis from Map F-1 <br /> Delta Paving GS-2 Lewicki&Associates <br /> December 2020 <br />