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