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across Trunk Highway 169 to the west. The location of the Site is illustrated on Figures 1 and 2 in Appendix A. Figure 3 in Appendix A shows the properties zoned for mineral excavation in • the surrounding area. 2.8.2 Site Analysis Information There is very little tree cover in the areas of the proposed mining. The depth to gravel beneath the topsoil is typically less than 12 inches. There are no buildings located on the Site and no buildings are proposed. The nearest buildings are located south of the Site and are associated with a farmstead to be purchased by Schmidt. The Site is not located in the delineated 100-year flood plain and no water courses exist on the Site. Seven separate wetlands are located on the Site, however, it is not anticipated that any of these wetland areas will be altered or hydrologically affected by the proposed mining. The elevations and slopes within 100 feet of the perimeter of the Site are shown on the Existing Conditions Map included as Sheet 1 in Appendix C. 2.8.3 Estimated Quantity of Materials to be Extracted Approximately 500,000 cubic yards of material will be mined from approximately 14.81 acres of the Site. All of the gravel to be mined is located in existing hills. • 2.8.4 Depth of Water Table The general hydrogeologic conditions in the vicinity of the Site were described in the Environmental Impact Statement (EIS) prepared for the Elk River Gravel Mining District, Elk River, Minnesota, prepared by Maier Stewart and Associates, Inc (MSA), dated May 1994 (the 1994 EIS). Based on groundwater information in the 1994 EIS, the groundwater elevation is the area of the Site is approximately 950 feet. Based on a review of the existing site conditions, the water table at the Site may vary from 948- 966 feet, based on the elevations of the wetlands. The proposed maximum depth of mining will not extend below five feet above the elevation of the closest wetland to the area being mined (see Sheets 2, 3, and 4, Phasing Plans, Appendix C). 2.8.5 Average Thickness of Overburden Overburden in the areas to be mined at the Site is minimal. Gravel is typically present at less than 12 inches below grade. 2.9 PLAN OF OPERATION • The gravel mining operation will include mining, processing, stockpiling, and hauling of gravel LIESCH ASSOCIATES,INC. January 2003 Hydrogeologists Engineers.Environmental Scientists Page 3•