6.2. & 6.3. SR 05-19-2003 - Laserfiche WebLink

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to construction and road project sites. A portable crusher will be utilized on site periodically. The proposed operation does not include gavel washing. Operation of the portable asphalt plant will include drying and heating of aggregate and mixing with asphalt cement coating to produce asphalt. The operation will include a bulldozer, a loader and conveyors. Mining will be conducted in three phases (see Sheets 2, 3, and 4, Phasing Plans, Appendix C) and will begin on the east side of the Property and move westward. As a phase is opened topsoil will be stripped from the designated area and stockpiled on-site for later use in site restoration. The portable asphalt plant will be located on the east portion of the Site near Phase 1. No permanent roads or building will be constructed at the Site. No permanent utilities will be installed at the Site. No water wells are proposed at the Site. No gravel washing will occur at the Site. Water use at the Site will be for purposes of dust control only. No disposal or reuse of water will occur. No explosives will be used at any time. 2.10 DRAINAGE~ EROSION CONTROL~ SEDIMENTATION~ DUST~ SECURITY~ ACCESS CONTROL~ AND WEED CONTROL Surface water runoff and erosion controls are proposed to control surface water discharge off site. The proposed controls will include installation of silt fence/hay bales, rip-rap placement in drainageways, and phased topsoil replacement and seeding of completed phases. The silt fence/hay bales and rip-rap will be placed in areas deemed necessary during mining operations. Since most of the Site will remain undisturbed during the mining operations, only minimal, if any, off site surface water run off is anticipated. Based on the topographic contours of the Site, surface water runoff from the eastern portion of the Site will flow to the east. Surface water runoff from the western portion of the Site will remain on site and flow into the low areas or wetlands. Sedimentation may occur in temporary, natural ponding areas. Sheet 5 in Appendix C shows the drainage characteristics of the Site. 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 truck and applied prLmarily 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 from these areas may include of stockpiling soils in a manner to prevent erosion and phased restoration of completed areas. Additionally, paving 100 feet of the approach to Trunk Highway 169 may be considered to reduce dust. Fugitive dust generated from the asphalt plant operations will be addressed through the use of baghouses. Baghouses are designed to filter fine particles through the use of fabric. Particles will be caught on the surface of the bags, leaving clean flue gas to pass through. Bags LIESCH ASSOCIATES, INC. January 2003 Hydrogeologists · Engineers · Environmental Scientists .Page 4.