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jii|^% 1®^.. ■Parking areas.Structures. <br />Co«renercial facilities or uses. <br />3, The following items shall be included in <br />coBputation of miniaun open space: <br />iP®a Wetlands . <br />|»|/ <br />B»;“ <br />Significant historic sites. <br />Unplatted cemeteries. <br />Other areas with physical <br />j^^^^ cluiracteristies unsuitable for development in their natural state. <br />fey- <br />|||:^ <br />iy <br />e. The lakeshore scvoack zone, based on <br />normal raquired structure setbacks, must be included as open space. <br />For PROBr the entire lakeshore setback zone must be preserved in <br />its natural or existing state, except for those improvements <br />necessary to provide reasonable pedestrian access to the water body <br />as regulated elsewhere j.n the zoning cooe. <br />4. Open space may include subsurface sewage <br />treatment systems if the use of the space is restricted to avoid <br />edverse impacts on the systems. <br />5. The appearance of open space areas, <br />including topography, vegetation, and allowable usos, must be <br />preserved by use of restrictive deed covenants, permanent <br />easements, public dedication and acceptance, or other equally <br />affective and permanent means. <br />S>-'- my' <br />1'^ <br />I. Erosion Control and Stormwater Management. <br />Erosion control and stormwater management plans must be developed <br />and the PRD must: <br />r <br />M <br />fii <br />^ <br />1. Be designed and the construction managed <br />to minimize the likelihood of serious erosion occurring either <br />during or after construction. This must be accomplished by <br />limiting the amount and leitgth of time of bare ground exposure. <br />Tesiporary ground covers, sediment entrapment facilities, vegetated <br />buffered strips, or other appropriate techniques must be used to <br />minimize erosion impacts on surface water featu ’-es. Erosion <br />control plans approved by the Minnehaha Creek Watershed District <br />may be required if project size and site physical <br />characteristics warrant; and <br />2. Be designed and constructed to effectively <br />manage reasonably expected quantities and qualities of storm water <br />run-*off. Impervious surface coverage within any tier must not <br />exceed 25% of the tier area except that credit for unused hardcover <br />Hr::4