5.3. SR 09-07-2004 - Laserfiche WebLink

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2.8.5 Average Thickness of Overburden Overburden in the areas to be mined at the Site is minimal. at less than 12 inches below grade. Gravel and peat are typically present 2.9 PLAN OF OPERATION The mining operation will include mining, processing, stockpiling, and hauling of gravel and peat to construction and road project sites as well as some material removal by private haulers on a periodic basis. A portable crusher will be utilized on site periodically and the proposed operation does include periodic gravel washing. Temporary storage of recycled asphalt and concrete materials are also proposed as part of the mining operations. Equipment utilized on site will include a bulldozer, dragline, front end loader and conveyors. Mining will be conducted as indicated on the mining plan (refer to Sheet 2 Mining Grading Plan, Appendix C) and will begin on the east side of the Property and progress westward. As a mining area is opened, topsoil will be stripped from the designated area and stockpiled on-site for later use in site restoration. No permanent roads or building will be constructed at the Site. No permanent utilities will be installed at the Site. No water supply wells are proposed at the Site. Water use at the Site will be for purposes of dust control and periodic gravel washing 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 and/or vegetative buffer hay bales, rip-rap placement in drainage ways, and phased topsoil replacement and seeding of completed phases. The silt fence, vegetative buffer, hay bales and rip-rap will be placed in areas deemed necessary during mining operations. Since most of the storm water generated at the site will remain on site as it is the low spot in the area, only minimal, if any, off site surface water run off is anticipated. Based on the topographic contours of the Site and the contours shown on the mining plan, surface water runoff will remain on site and flow into the low areas or wetlands. Sedimentation may occur in temporary, natural ponding areas. Sheet 3 in Appendix C shows the drainage characteristics of the Site. LIESCH ASSOCIATES, INC. May 2004 Hydrogeologists · Engineers. Environmental Scientists 'Page 4.