5.4. SR 09-07-2004 - Laserfiche WebLink

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14. 15. 16. 13. On site surface water runoff from precipitation is to be controlled by designated grading plans and installation of silt fences and/or vegetated buffers in areas of the Site to be graded. A portion of the existing ditch located on the property will be removed as indicated in the proposed mining plan. As mentioned in item 9, the existing ditch was abandoned in 1965 and very little flow has been observed in the ditch after significant rainfall events. It is not anticipated that excavation of portions of the ditch will affect property owners upstream or downstream of the property since the ditch elevations where it enters and leaves the property will be unchanged and the ditch will flow into the area of open water and wetlands created as mining progresses and as proposed for site restoration. Water use. Will the project involve installation or abandonment of any water wells, connection to or changes in any public water supply or appropriation of any ground or surface water (including dewatering)? X_~_Yes __ No If yes, as applicable, give location and purpose of any new wells; public supply affected, changes to be made, and water quantities to be used; the source, duration, quantity and purpose of any appropriations; and unique well numbers and DNR appropriation permit numbers, if known. Identify any existing and new wells on the site map. If there are no wells known on site, explain methodology used to determine. The project will involve the installation of three ground water monitoring wells on the site that will serve to monitor ground water elevations in the vicinity of the mining area. The ground water monitoring wells were installed at the time this document was being prepared and the well locations are shown in Appendix A, Figure 3. One well currently exists at the house on the farmstead located in the southeast portion of the Site. The well is located approximately 600 feet from the boundary of the proposed mining area. It is not anticipated that the well will be affected by the mining operation. Water-related land use management district. Does any part of the project involve a shoreland zoning district, a delineated 100-year flood plain, or a state or federally designated wild or scenic river land use district? __Yes X No If yes, identify the district and discuss project compatibility with district land use restrictions. Water surface use. Will the project change the number or type of watercraft on any water body? __Yes ___X No If yes, indicate the current and projected watercraft usage and discuss any potential overcrowding or conflicts with other uses. Erosion and sedimentation. Give the acreage to be graded or excavated and the cubic yards of soil to be moved: Approximately 39.42 acres; 1,190~000 cubic yards.