2018-07-25_PERMIT FILE - M2018039

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Although most of the marketable materials have been removed from the site, it is believed that additional sand and gravel materials exist on-site and excavation of these materials will occur where they are found. The intended use for the sand and gravel would be for construction aggregates and, if applicable, to increase the stability of existing backfill and pit slopes. Permitted mining operations are immediately north and west of the proposed site and City of Fort Collins open space is adjacent to the eastern permit boundary. The dominant non-mining land use surrounding the property is agriculture and rural to semi-rural residences. Items owned by the applicant located within the proposed permit boundary such as roads, fences, water wells and associated pumps, and other structures may be removed or relocated during the mining and reclamation process. As noted previously, the Poudre River Trail owned by the City of Fort Collins crosses through the middle of the site. The trail has an associated 20-foot utility easement. All other structures on the site are owned by the applicant. Man-made structures within 200-feet of the proposed permit boundary include fences, the Poudre River Trail, over- head power transmission lines and poles, over-head utility lines, un-improved roads, water conveyance ditches, pipelines and associated infrastructure, and mining equipment. All potentially mineable aggregate materials available on the site will be located at the current pit bottoms. Mining of these materials will occur at 3H:1 V slopes so that the stability of the existing reclaimed pit slopes is not compromised. No mining highwalls will be created and all excavations and slopes on the site will remain stable. Since all reclamation activities will be performed within the permit boundary, no impacts to man-made structures outside the permit boundary are anticipated. (see Exhibit S, Permanent Man-Made Structures within 200 Feet of the Affected Land). Mine Phasing Depending upon economic conditions, all the existing pits may be mined and reclaimed concurrently. However, it is more likely that the existing pits will be mined and reclaimed separately; Lamb A will be mined and reclaimed first, then Lamb B, and finally Lamb C. The mining and reclamation of each pit is expected to take from 3 to 4 years. Mining in each pit (phase) will occur in the bottom of the pit where material is found to be available, but the general direction of mining on the overall site will be from north to south (Lamb A to Lamb Q. A summary of mining phases is presented in the following table. Acreages include the entire existing mine pit and not necessarily the area to be mined. Mine Phasing Summary Mine Phase Existing Pit Total Acreage Duration(acres) (years) Phase 1 Lamb A 12 3-4 Phase 2 Lamb B 31 3-4 Phase 3 Lamb C 9 3-4 TOTAL 52 9— 12 Lamb Lakes DRMS 112 Permit Application Page 5