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17-18 (e) Construction of water supply wells and waste 17.72- PROCEDURES. (intro.) Amendments to treatment systems to prevent the entrance of this ordinance may be made upon petition of any floodwaters into the systems; and interested party according to the provisions of s. (f) Cutoff valves on sewer lines or elimination of 59.97, Stats. Such petitions shall include all gravity flow basement drains. necessary data required by ss. 17.44 and 17.61(2). (1) Copies of any amendment proposed shall be 17.66 PUBLIC INFORMATION. (1) Where referred to the zoning agency for a public hearing useful, marks on bridges or buildings or other and recommendation to the governing body. markers may be set to show the depth of Copies of the proposed amendment and notice of inundation during the regional flood at appropriate the public hearing shall be submitted to the locations within the floodplain. appropriate district office of the department of (2) All available information in the form of maps, natural resources for review prior to the hearing. engineering data and regulations shall be readily The amendment procedure shall comply with the available and should be widely distributed. . provisions of s. 59.97, Stats., except that no (3) All legal descriptions of property in the provision of this chapter shall be construed to floodplain should include information relative to require town board approval or allow town board the floodplain zoning classification when such veto of any such amendment. property is transferred. (2) No amendment to the maps or text of this ordinance shall become effective until reviewed 117..67- 17.70 reserved for future use.] and approved by the department. (3) All persons petitioning for a map amendment SUBCHAPTER VII which involves an obstruction to flow causing an AMENDMENTS increase of 0.01 foot or more in the height of the regional flood shall obtain flooding easements, or 17.71 AMENDMENTS. (intro.) GENERAL. The other appropriate legal arrangements, from all county board may change or supplement the adversely affected property owners and notify local boundaries of the floodplain zoning districts and units of government before the amendment can be the regulations contained in this ordinance in the approved by the governing body. manner provided by law. Actions which require (4) When considering amendments to the official an amendment include, but are not limited to, the floodplain zoning map in areas where no water following: surface profiles exist, the committee and board (1) Any change to the official floodplain zoning shall consider data submitted by the department, map, including the floodway line or boundary of the zoning administrator's visual on-site any floodplain area; inspections and other available information. (See (2) Correction of significant discrepancies s. 17.12.) between the water surface profiles and floodplain zoning maps; [17.73- 17.80 reserved for future use.] (3) Any fill in the floodplain which raises the elevation of the filled area to a height at or above the flood protection elevation and is contiguous to SUBCHAPTER VIII land lying outside the floodplain; FLOOD STORAGE DISTRICT (4) Any fill or encroachment into the floodplain that will obstruct flow causing an increase of 0.01 17.81 FLOOD STORAGE DISTRICT. (1) Intent foot or more in regional flood height; and purpose. The flood storage district delineates (5) Any upgrading of floodplain zoning that portion of•the floodplain where storage of ordinances text required by s. NR 116.05, Wis. floodwaters has been taken into account. The Adm. Code, or otherwise required by law, or for district provides for the protection of the storage changes by the county. areas and assures that development in the storage areas will not cause higher floodplain elevations. (2) Criteria for establishing flood storage districts. A flood storage district may be established for the area landward of the floodway in lieu of the floodfringe designation where rev. 043095