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The Department of Planning and Development shall change or supplement the floodplain zoning district boundaries and this ordinance in the manner outlined in 12.60.030 below. Actions which require an amendment to the ordinance and/ or submittal of a Letter of Map Change (LOMC) include, but are not limited to, the following:

(a) Any fill or floodway encroachment that obstructs flow causing any increase in the regional flood height;

(b) Any change to the floodplain boundaries and/or watercourse alterations on the FIRM;

(c) Any changes to any other officially adopted floodplain maps listed in 12.02.130(c);

(d) Any floodplain fill which raises the elevation of the filled area to a height at or above the flood protection elevation and is contiguous to land lying outside the floodplain;

(e) Correction of discrepancies between the water surface profiles and floodplain maps;

(f) Any upgrade to a floodplain zoning ordinance text required by s. NR 116.05, Wis. Adm. Code, or otherwise required by law, or for changes by the municipality; and

(g) All channel relocations and changes to the maps to alter floodway lines or to remove an area from the floodway or the floodfringe that is based on a base flood elevation from a FIRM requires prior approval by FEMA. [Code § 12.40-2.]