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Chavers Mining Resource <br /> DRMS Permit No.M-2015-030 <br /> Amendment No.2(AM-02) <br /> January 2024 <br /> Page 9 <br /> subsequent fall season. Growth and progress of the grass will be monitored <br /> quarterly to ensure a successful transition back to rangeland use. It is anticipated <br /> that a successful transition will occur within five (5)years from the date ASCI <br /> informs the DRMS that Reclamation Phase 2 has commenced. <br /> 3.1.4 Public Use: The public will not be allowed on the land while mining and reclamation <br /> activities are in progress.After reclamation is complete and the bond released,the public <br /> will only have access to the land adjacent to the South Platte River that will be dedicated <br /> to the City of Fort Lupton. <br /> 3.1.5 Reclamation Measures — Materials Handling: Measures will be taken to meet the <br /> following requirements. <br /> (1) The Site will be graded to the approximate topographic elevations prior to mining. <br /> The approximate final contours of the Site are shown on Exhibit F - Reclamation Plan <br /> Map. <br /> (2)No toxic or acid-forming materials will be included in backfill material. All backfill <br /> materials will be compacted during the filling process. <br /> (3)Grading will be done to control erosion and siltation on the affected lands and protect <br /> outside areas from slides. No high walls will be left exposed. <br /> (4) Once backfill activities are complete at the Site, grading will occur as quickly as <br /> feasible. <br /> (5)No acid-forming or toxic producing materials are associated with materials mined at <br /> the Site.On-site refuse is maintained by contracted vendors to control unsightliness and <br /> protect the South Platte River drainage system. <br /> (6)No drill or auger holes, adits, or shafts are associated with the mining operation.All <br /> monitoring wells will be properly abandoned prior to completing reclamation. <br /> (7) Contouring the site back to approximate pre-existing topographic elevations will <br /> result in maximum slope(s) that are compatible with surrounding conditions and <br /> selected land use. <br /> (8) The grade of the land will allow for use of farm machinery to traverse the Site. <br /> (9) This document, Amendment No. 2 (AM-02), serves as ASCI's notice of intent to <br /> backfill using clean,uncontaminated materials generated outside of the approved permit <br /> area in addition to materials generated within the permitted area. <br /> (a) The location of backfill sourced off-site will occur in the remaining±71 acres <br /> to be mined. <br /> (b) The approximate total volume of backfill material is estimated to be f 3.0 <br /> million cubic yards. <br />