02-25-1991 Council Packet - Laserfiche WebLink

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& i;V •7: Structure setbacks^ must be included as open space. At least 50 percent of the shore impact zone area of existing developments or at least 70 percent of the shore impact zone area of new developments must be preserved in their natural or existing state. (f) Open space must not include commercial facilities or uses, but may ,Dntain water-oriented accessory structures or facilities. (g) The appearance of open space areas, including topography, vegetation, and allowable uses, must be preserved by use of restrictive deed covenants, permanent easements, public dedication and acceptance, or other equally effective and permanent means. (h) Open space may include subsurface sewage treatment systems if the use of the space is restricted to avoid adverse impacts on the systems. (3) Centralization and design of facilities and structures must be done according to the following standards: (a) Residential planned unit developments must be connected to publicly owned water supply anu sewer systems, if available. On-site water supply and sewage treatment systems must be centralized and designed and installed to meet or exceed applicable standards or rules of the Minnesota Department of Health and the Minnesota Pollution Control Agency. On'-site sewage treatment systems must be located on the most suitable areas of the development, and sufficient lawn area free of limiting factors must be provided for a replacement soil treatment system for each sewage system. (b) Dwelling .nits or sites must be clustered into one or more groups and located on suitable areas of the development. They must be designed and located to meet or exceed the following dimensional standards for the relevant shoreland classification; setback from the ordinary high water level, elevation above the surface water features, and maximum height. Setbacks from the ordinary high water level must be increased for developments with density increases. Maximum density increases may only be allowed if structure setbacks from the ordinary high water level are increased to at least 50 percent greater than the minimum setback, or the impact on the waterbody is reduced an equivalent amount through vegetative management, topography, or additional means acceptable to the local unit of government and the setback is at least 25 percent greater than the minimum setback. (c) Shore recreation facilities, including but not limited to swimming areas, docks, and watercraft mooring areas and launching ramps must be centralized and located in areas suitable for them. Evaluation of suitability must include A-1.40