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. health or safety or where such facilities are essential to the orderly functioning of the area. Where failure or interruption of service would not endanger life or health, a lesser degree of protection may be provided for minor or auxiliary roads, railroads, or utilities. d. Waste Treatment and Waste Disposal - i. No new construction, addition, or modification to existing waste treatment facilities shall be permitted within the floodplain unless emergency plans and procedures for action to be taken in the event of flooding are prepared, filed with and approved by the Minnesota Pollution Control Agency. The emergency plans and procedures must provide for measures to prevent introduction of any pollutant or toxic material into the flood waters. ii. There shall be no disposal of garbage or solid waste materials within floodplain areas except upon issuance of a conditional use permit for sites approved by the Minnesota Pollution Control Agency and subject to the requirements of Section 902.20(3)(8). e. Flood Control Works - Flood control works shall be subject to the provisions of Section 902.20C])(f) and the following provisions: . i. The minimum height and structural design of any dikes, levees, floodwalls, or similar structural works shall be ~~8ed upon the flood profile of the regional flood confined between the structures subject to the following: for urban areas the minimum height and design of structural works shall be at least three feet above the elevation of the regional flood, as confined by the structures. or at the elevation of the standard project flood, whichever is greater. ii. Flood protection elevations and floodway limits which reflect proposed measures for flood control shall not be effective until such measures are constructed and operative unless the proposed measures will increase flood heights, in which event, the regulatory flood protection elevations and flood plain limits shall reflect the anticipated increases. iii. Detailed plans shall be submitted to the Planning Commission and City Council for any new developments placed on the floodplain landward from dikes, floodwalls, and similar structures. The plans must provide for ponding areas or other measures to protect against flooding from interior drainage. 902.24 - Subdivisions. No land shall be subdivided which is held unsuitable by the City for reason of flooding, inadequate drainage or inadequate water supply or sewage treatment facilities. All lots contained within the floodplain districts shall contain a building site at or above the regulatory flood protection elevation. All subdivisions shall have access and water and sewage disposal facilities that comply with the provisions of this ordinance. In all areas designated as unnumbered A Zones in the Flood Insurance Study for the City, subdividers shall provide the infbrmation required in Section 902.30, and the subdivision shall be evaluated in accordance with procedures .establiShed therein. 902.26 - Public Utilities. All public utilities and facilities such as gas. 8.