2022-09-26_PERMIT FILE - M2022042 (5)

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Windsor East Mine, Exhibit E – Reclamation Plan September 2022 Page 1 | 4 EXHIBIT E – RECLAMATION PLAN 1.0 DESIGN INTENT This site will be mined and reclaimed to create two water storage ponds that the landowner, GWIP will own and use for water storage. Water stored in the ponds will be used by GWIP to satisfy augmentation requirements. Currently, GWIP leases water from the Town of Windsor to satisfy some augmentation requirements. So, upon completion of the reservoirs, GWIP will no longer need to lease water from Windsor to meet this requirement. Two lined water storage reservoirs surrounded by revegetated upland areas will be created by the mining and reclamation process. Native and adaptive plantings and ground covers will be used to restore and enhance all areas disturbed by mining activities that will not be within a lined water storage cell. This reclamation plan was developed based on: A thorough evaluation of the environmental resources and existing conditions on and adjacent to the property; The context of the property relative to existing and planned land uses in the area; The volume, depth and configuration of the mineral resource; The landowners’ plans for the property; and The rules and policies of Windsor, the Colorado Division of Mining, Reclamation and Safety and other applicable local, State and Federal agencies. Key considerations include the following: The permit boundary on the south was placed outside of the Cache la Poudre riparian corridor to protect the area. The 200’ setback from the river will be clearly marked in the field and best management practices will be used as necessary to implement the CDPHE Storm Water Management Plan for the site. Maintenance activities on the site will also include a comprehensive Weed Management Plan (see attached) to limit the spread of invasive species into the riparian areas and wetlands. Much needed water storage reservoirs will be created on the site. The reservoirs will be lined with compacted material acceptable to construct liners that are found on the site. Five groundwater monitoring wells have been installed to establish pre-mining baseline water levels along with the Parsons Mine (M-2009-082) monitoring wells. The wells will be used to monitor effects from mining and provide information for mitigation of potential impacts on groundwater levels and riparian vegetation, as necessary. If levels drop below seasonal levels, dewatering water will be diverted to the areas to sustain existing vegetation to limit impacts during mining. Details of the monitoring and mitigation plans are provided in Exhibit G. 2.0 POST-MINING LAND USE The post-mining land use, as proposed in this Reclamation Plan consists of water storage ponds surrounded by upland vegetation. 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 Town of Windsor planning goals.