April Dane County Code of Ordinances

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i Chapter 11 (4) Permit conditions: In considering a special wetland areas occurring throughout the exception permit the board of adjustment shall unincorporated areas of Dane County, and to control evaluate the effect of the proposal as to possible water building and development in wetlands whenever pollution, including erosion and sedimentation, possible. When development is permitted in a harmful changes to fish life or aquatic plants, wetland, the development should occur in a manner maintenance of safe and healthful conditions; consistent with state and federal law that minimizes (a) In granting a special exception permit, adverse impacts upon the wetland. the board of adjustment shall attach the following (2) Designation: conditions where appropriate: (a)The. shoreland-wetland district shall 1. The smallest amount of bare ground shall be include all shorelands which are designated as - exposed for as short a time as feasible. wetlands of two acres or more in area on the 2. Temporary ground cover(such as mulch) shall Wisconsin Wetland Inventory Maps of 1986 (or be used and permanent cover (seeding or sod) shall subsequent appropriate year) applicable to Dane be planted. County. 3. Diversion, silting basin, terraces and other (b)The inland-wetland district shall include methods shall be used to trap sediment. all non-shoreland wetlands, as shown on the 4. Lagooning shall be conducted in such a Wisconsin Wetland Inventory Maps, which are two manner as to avoid creation of fish trap conditions. acres or more in area and located in the 5. Fill shall be stabilized according to accepted unincorporated territory of Dane County. engineering standards. (c) The Wisconsin Wetland Inventory Maps 6. Fill shall not restrict a floodway or destroy the are incorporated herein by reference and are on file in storage capacity of a flood plain. the office of the Dane County Zoning Administrator. 7. Sides of a channel or artificial water course Wetlands that extend across the corporate limits of an __ shall be stabilized to prevent slumping. adjacent municipality or across the shoreland 8. Sides of channels or artificial watercourses boundary shall be included in the appropriate wetland shall be constructed with slopes (side) of 2 units district if the total contiguous wetland area is two horizontal distance to one unit vertical or flatter, acres or more in area. unless bulkheads or rip-rapping are provided. (4) Discrepancies: When an apparent discrepancy 9. Other specifications found in the USDA--SCS exists between the shoreland-wetland district shown Technical Guide may be required by the board of on the official wetlands inventory maps and actual adjustment. field conditions at the time the maps were adopted, (5) Department of natural resources: involving an area of five acres or more in size, the (a) Written notice shall be given to the zoning administrator shall contact the appropriate _ appropriate district office of the department of natural field office of the department to determine if the resources at least 10 days prior to hearing on shoreland-wetland district as mapped is in error. If proposed shoreland variances, special exceptions the department staff concur with the zoning (conditional uses), appeals for map or text administrator that a particular area of five acres or interpretations,and map or text amendments. more in size was incorrectly mapped as a wetland,the (b) Copies of decisions on shoreland zoning administrator shall have the authority to variances, special exceptions (conditional uses), immediately grant or deny a land use permit in appeals for map or text interpretations, and map or accordance with the regulations applicable to the text amendments shall be submitted to the appropriate correct zoning district. district office of the department of natural resources (5) In order to correct wetland mapping errors shown within 10 days after they are granted or denied. on the official zoning map, the zoning administrator shall initiate a shoreland-wetland or inland-wetland 11.06 SHORELAND-WETLAND AND INLAND- map amendment within a reasonable period of time. WETLAND DISTRICTS. (1) Purpose: - This [History: (2) am., (3) renum. as (4) and (5) and (3) ordinance is adopted to maintain safe and healthful recreated, OA 16, 1991-92, pub. 02/18/92; (1), (2), conditions, to prevent water pollution, to protect fish (3), (4) and (5) am., Sub. 2 to OA 21, 1993-94, pub. spawning grounds and wildlife habitat, to preserve 09/30/94; (3) rep., Sub. 1 to OA 47, 1993-94, pub. shore cover and natural beauty, to conserve inland- 03/22/95.] Page 60 Revised 4-30-97