5.3. SR 09-07-2004 - Laserfiche WebLink

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Dust generated during mining operations will be limited to the active mining area and haul roads. Water will be delivered to the Site via a water track and applied primarily to haul roads, but also to any exposed soil/topsoil stockpiles and areas where mining has been completed as is necessary. Mitigative measures to minimize fugitive dust fi.om these areas may include of stockpiling soils in a manner to prevent erosion and phased restoration of completed areas. Access to the site will be gated. When the site is unattended, all vehicles and equipment will be secured and locked. Control of access to open extraction areas will be accomplished with warning signs and/or fencing. Fencing currently exists at the Site. The mining operation will not involve the creation of any steep slopes. The gravel resources to be mined are located only in long narrow ridges. It is anticipated that these gravel containing ridges will be excavated and removed to the elevations indicated on the mining plan. Peat excavation is anticipated to occur in the low lying areas of the site and in areas shown as wetlands on the existing conditions plan peat excavated fi.om areas designated as wetlands will occur at a shallow depth to assure wetland conditions are maintained in these areas. The overall mining of the site will result in a complex of type 2 through 5 wetlands and an area of deeper water fishery habitat. To prevent weeds and unsightly vegetation, stockpiled topsoil will be placed on graded and mined surfaces intermittently as the phased mining progresses. Graded areas and completed phases will be re-vegetated with standard MnDOT and/or BWSR seed mixtures. 2.11 RESTORATION PLAN Upon completion of mining, the Site will be restored as waterfowl and fishery habitat with a potential end use as a public fishing/recreation area. As areas of the mining are completed, the stockpiled soils and topsoil will be distributed and graded across the mined area. Stockpiled topsoil will be placed on graded and mined surfaces intermittently as the mining progresses. Topsoil will be seeded and mulched to prevent erosion. Standard MnDOT and/or BWSR seed mixtures will be used and when necessary trees will be planted. Final grades will range fi.om 1% to 25%. Sheet 3 in Appendix C is the Drainage and Restoration Plan showing the proposed final contours of the Site. 3.0 STANDARDS AND REQUIREMENTS 3.1 BOUNDARY Extraction operations will be conducted within the confines of the extraction site described in the application. LIESCH ASSOCIATES, INC. May 2004 Hydrogeologists · Engineers · Environmental Scientists .Page 5.