2019-11-20_REVISION - M2004044 (4)

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Affected Land The Affected Land includes all Tracts described in the Permit Boundary except Tract K,which is owned by the City of Aurora. This area is located west of and including the Brighton Ditch and will not be disturbed by the mining activities and reclamation operations. Therefore, it was excluded from the Affected Land. Existing Land Uses The proposed Tucson South Resource mine currently consists of dryland agriculture,one house and a former greenhouse growing operation. The former greenhouse growing operation is currently being demolished by the City if Aurora in preparation of mining. Aggregate Industries is currently renting the existing house and they have given the renters notice to vacate the property by March 31, 2019. The Todd Creek water well and associated United Power overhead electric line on the west side of the West area will also be removed.Aggregate Industries purchased the Todd Creek water well parcel and entered into an agreement to relocate the well to an area adjacent to the river. The relocated well is shown on Exhibit C-3. The applicant has contacted United Power regarding removal of the existing electric service and will forward the documentation regarding removal of the service line upon receipt. There is one rural residential property located adjacent to property on Tucson Street,several rural residential properties south of Tract H and Highway 7 and east of Tract I, and there is a developing residential subdivision located west of Track K. The South Platte River corridor receives recreational use and the City of Brighton operates a parks and wildlife recreational area north of Highway 7 and east of Tract H along the west side of the South Platte River. Improvements owned by the applicant or property owners that are located within the Permit Boundary Area such as un-improved roads,fences, alluvial water wells and associated pumps, houses and outbuildings, irrigation ditches and laterals, may be removed or relocated during mining and reclamation. There are two established oil and gas wells and associated facilities located on the property. The operator of the well has notified Aggregate Industries that the wells will be capped and abandoned in 2019. No mining will take place within 75'of the existing oil and gas wells until the wells are plugged and abandoned per Colorado Oil and Gas Conservation Commission standards. Structures,easements, or rights-of-ways not owned by the applicant or property owner will not be disturbed without prior permission(see Exhibit C Pre-Mining Maps). None of the easements, rights-of-ways,or associated structures are expected to be negatively affected by mining or reclamation operations. Nature of Deposit to be Mined Test borings indicate a layer of topsoil and overburden ranging from 1 to 11 feet in depth with a typical overburden depth of 5 feet. The typical depth of topsoil to be removed is 6". In the western part of the site,the topsoil has been tilled until recently and likely contains a significant amount of organics. The overburden is underlain by an aggregate layer with a thickness ranging from 0 to 46 feet with a typical thickness of 25 feet. In some parts of the sites,the aggregate layer contains a 2-to 9-foot thick mud lens, The total depth to bedrock from the surface grade ranges from 5 feet in the west to approximately 50 feet in an apparent paleochannel in the eastern part of the site. The typical depth to bedrock is approximately 27 feet over most of the mine area. The aggregate layer overlies sedimentary bedrock of the Denver Basin. A complete soils report is attached in Exhibit I herein for reference. Aggregate Industries Tucson South Resource Permit#M-2004-044112 Permit Amendment Page D-2