2010-01-21_PERMIT FILE - M2009082 (11)

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All disturbed areas will be vegetated as appropriate with a native seed mix, as recommended by the Soil Conservation Service (recommended seed mixes below). These uses are compatible with the surrounding land uses and with the Weld County planning goals. Lafarge will concurrently reclaim mine walls where mining has been completed according to the phases outlined in the Mine Plan. Reclamation, including regrading and seeding, will be completed within two to five years following the completion of mining or filling operations for each phase. The mining and reclamation will leave no high walls on the property. No acid forming or toxic materials will be used or encountered in the mining. There will be no auger holes, adits, or shafts left on the site. Reclamation Measures - Material Handling Site reclamation measures are illustrated in Exhibit F. Reclamation of the site will include 8 unlined open water ponds (60.0 acres), approximately 48.4 acres of wetlands and enhanced riparian areas and approximately 187.3 acres of upland (approximately 78.1 of these acres are within the mining limits and the remaining 109.2 acres are other disturbed areas within the permit boundary). The ponds will be reclaimed as un-sealed groundwater ponds. All mine walls will be re-graded with overburden material. Slopes above the post-mine high water level will be 4H:1 V and slopes below the post-mine high water level will not exceed 3H:1 V. Topsoil will be spread to a minimum depth of 10" to 12" over the surface of the regraded slopes in all areas (except silt basin wetland) above the post-mining lake levels; all topsoil-covered surfaces will be revegetated with the appropriate seed mix. Scrapers will be used to place the backfilled overburden and topsoil. Using scrapers to layer the lifts at a maximum 3:1 slope ensures a stable configuration. Disturbed areas associated with site access and the conveyor will be scarified, covered with topsoil, and revegetated. Topsoil will be replaced, where required, in reclaimed areas at a depth of approximately six to twelve inches. Site grading will be performed to create stable topography and will be consistent with post-closure land uses. Reclamation quantities and costs are summarized in Exhibit L. Water Overburden and mine materials will be inert and impacts to local surface water or groundwater quality are not anticipated to occur as a result of mining activities. Lafarge West, Inc. will comply with all applicable Colorado water laws and all applicable Federal and State water quality laws and regulations and appropriate storm water management and erosion control to protect the river and existing riparian vegetation. Wildlife Presently, the area is used for farming and livestock grazing. There is significant habitat for many wildlife species along the river corridor. There is an existing bald eagle nest situated in an unstable dead cottonwood tree located on the south side of the river (on the adjacent property next to a Parsons Mine DRMS 112 Reclamation Permit Application Page E3 of E9