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Chapter 910 Shoreland Overlay District <br /> <br /> <br /> Page 910-18 <br />water features. Erosion control plans approved by a soil and water conservation <br />district may be required if project size and site physical characteristic warrant; <br />and <br />b. Be designed and constructed to effectively manage reasonably expected <br />quantities and qualities of storm water runoff. Impervious surface coverage <br />within any tier must not exceed twenty-five (25) percent of the tier area, except <br />that for commercial PUDs thirty-five (35) percent impervious surface coverage <br />may be allowed in the first tier of general development lakes with an approved <br />storm water management plan and consistency with Section 910.030 of this <br />Ordinance. <br />c. Be designed to be consistent with the City of Little Canada Erosion Control <br />Ordinance (Chapter 927) and Stormwater Ordinance (Chapter 928). <br />4. Centralization and Design of Facilities. <br /> Centralization and design of facilities and structures must be done according to the <br />following standards: <br />a. Planned unit developments must be connected to publicly owned water supply <br />and sewer systems. <br />b. Dwelling units or sites must be clustered into one or more groups and located on <br />suitable areas of the development. They must be designed and located to meet or <br />exceed the following dimensional standards for the relevant shoreland <br />classification: setback from the ordinary high-water level, elevation above the <br />surface water features, and maximum height. Setbacks from the ordinary high- <br />water level must be increased in accordance with Section 910.030 of this <br />Ordinance for developments with density increases; <br />c. Shore recreation facilities, including but not limited to swimming areas, docks, <br />and watercraft mooring areas and launching ramps, must be centralized and <br />located in areas suitable for them. Evaluation of suitability must include <br />consideration of land slope, water depth, vegetation, soils, depth to groundwater <br />and bedrock, or other relevant factors. The number of spaces provided for <br />continuous beaching, mooring, or docking of watercraft must not exceed one for <br />each allowable dwelling unit or site in the first tier (notwithstanding existing <br />mooring sites in an existing commercially used harbor). Launching ramp <br />facilities, including a small dock for loading and unloading equipment, may be <br />provided for use by occupants of dwelling units or sites located in other tiers; <br />d. Structures, parking areas, and other facilities must be treated to reduce visibility <br />as viewed from public waters and adjacent shorelands by vegetation, topography, <br />increased setbacks, color, or other means acceptable to the City of Little Canada, <br />assuming summer, leaf-on conditions. Vegetative and topographic screening <br />must be preserved, if existing, or may be required to be provided; <br />e. Accessory structures and facilities, except water oriented accessory structures, <br />must meet the required principal structure setback and must be centralized. <br />910.110. DEVELOPMENT ON SUBSTANDARD LOTS <br />A. Purpose: <br /> The purpose of regulating development on substandard lots of record is to coordinate <br />development on substandard lots to insure environmentally sensitive development, insure