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Homestake Mining Company June 17,2019 <br /> Regular(112d)Operation Reclamation Permit Application Package <br /> 4.10. Mill Site and Stormwater Pond <br /> No reclamation activities are proposed for the Mill Site and Stormwater Pond area. <br /> 4.11. Haul and Access Roads <br /> 4.11.1. Haul Roads <br /> No reclamation activities are proposed for the haul roads. <br /> 4.11.2. Forest Service Access Road <br /> The SRCE model inputs for the Forest Service Access Road were based on the following <br /> assumptions: <br /> • Regrading associated with the United States Forest Service (USFS) Access Road <br /> includes the minor recontouring and surface preparation to return the road to the approved <br /> template and promote positive drainage. Quantities were estimated using the length of the <br /> USFS Access Road (25,600 ft) for an average width of 25 ft, grading volumes assumed <br /> an average depth of 1 ft. <br /> • Scarify and Revegetation included scarifying the surface, and fertilizing and seeding <br /> regraded slopes and terraces with the specified seed mix for the reclamation activities. <br /> Quantities were estimated assuming that a 22 ft road width would be left in place, resulting <br /> in the revegetation of the remaining 3 ft width multiplied by the length of the USFS Access <br /> Road (25,600 ft) <br /> Key SRCE Costing assumptions included the following: <br /> • The recontouring equipment fleet was assigned as "Medium Excavator"within the model, <br /> which corresponds with a Caterpillar 330C class Excavator. The scarifying/ripping fleet <br /> was assigned as "Medium" within the model, which corresponds with a Caterpillar D8R <br /> class Dozer fleet. <br /> EXHIBIT L-RULE 6.4.12 (RECLAMATION COSTS)(Revised June 17,2019) Page 18 <br /> HOMESTAKE MINING COMPANY <br />