5.4. SR 09-07-2004 - Laserfiche WebLink

Home Browse Search

approximately ~¼-mile south of the Site. Truck traffic generated by the gravel mine will occur on designated haul roads on the north and south sides of the site via easements on private property for transportation of materials to Elk River Bituminous. Peat materials hauled off site will be transported on designated haul roads that access 225th Avenue to the north. Proposed transportation routes for vehicles utilizing the facility are included in Figure 11, Attachment A. The mining area at its complete aerial extent will be approximately 39.42 acres. The site is unique in nature, in that all of the gravel to be mined is located in existing hills on the site and peat will be mined in low lying areas of the site. Based on the existing information from the EIS prepared for the geology of the Elk River Gravel Mining District (Mining District), the groundwater elevation in the area of the Site is approximately 950 feet. The proposed maximum depth of mining will be to an elevation of 900 feet, or approximately fifty feet below the water table. In May 2004, three monitoring wells were installed on the property to better determine the groundwater elevation at the property. The results of subsequent monitoring indicate that the ground water is at an elevation of approximately 944. This would result in mining depths 44 feet below ground water at the maximum mining depth. Upon completion of gravel and peat mining activities, the stockpiled soils and topsoil will be distributed and graded across the mined area existing at that time above the watertable. The restoration elevations will range from approximately 900-950 feet with slopes from 1 to 25 percent. Figure 4 in Attachment A shows the proposed final contours of the Site. Stockpiled topsoil will be placed on graded and mined surfaces intermittently as the mining progresses. Topsoil will be seeded and mulched or stockpiled in a manner to prevent erosion in areas above the water table. Upon completion of all mining, the Site is proposed to be utilized as waterfowl habitat and a fishing pond. Explain the project purpose; if the project will be carried out by a governmental unit, explain the need for the project and identify its beneficiaries. The project purpose is to obtain natural aggregate and peat material for use in the construction industry. Gravel material mined will be used for the production of asphalt and road base materials which will be used for building new roads and improving existing roads in the surrounding area. Peat mined from the area will be used for production of organic topsoil material and for landscaping purposes in the surrounding area. d. Are future stages of this development including development on any outlots planned or likely to happen? __Yes X No If yes, briefly describe future stages, relationship to present project, timeline and plans for environmental review. ee Is this project a subsequent stage of an earlier project? __Yes X No If yes, briefly describe the past development, timeline and any past environmental review.