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. r, � �� JUNE, 1980 FH�� 6. THE WETLANDS AND MARSHLANDS OF THE CITY WILL BE PROTECTED AND PRESERVED AS WILDLIFE HABITATS, AS UNIQUE OPEN SPACES, AND AS THE ONLY ECONOMICALLY PR.ACTICAL METHOD OF FLOOD PROTECTION AND STORM WATER RUNOFF FILTR.ATION. The Harza Study , the 208 Water Quality Management Study , and Orono' s Surface Water Management Plan all recommend this approach to permanent water quality management for Lake Minnetonka. In addition , the �rono Plan goes on to identify individual wetlands and marshlands that require protection as part of the City' s storm water management program. It is the policy of this plan to effectuate the policies and recommen- dations of the 1974 Orono Surface Water Management Plan. 7, PROTECTION OF THE CITY' S MARSHLAND, WETLANDS AND DR.AINAGEWAYS SHALL INCLUDE PROTECTION OF ADJOINING LANDS AND PREVENTION OF DRAINAGE, FILLING, DREDGING OR WETLAND' S VEGETATION REMOVAL. Ordinances will establish setbacks for all land alteration or construction. Wherever possible , the City will acquire open space and flowage easements for conservation of these lands. 8. `, PROTECTION Or LAKE RESOURCES WILL ALLOW REASONABLE ACCESS, USE AND `� ENJOY2�NT WHILE PREVENTING OVERCROWDING AND EXCESSIVE ENCROACHMENT. In conformance with Mn . DNR Shoreline Management regulations for recreational development lakes , the City will prohibit overly dense development within 1 , 000 feet of Lake Minnetonke . Lake use regulations will be promoted to limit excessive boat density and overuse of sensitiv� bays . Land use regulations will be developed to provide reasonable control over building density , land alteration and lakeshore encroachmen� 9 �, LAKE SHORELINES WILL BE PROTECTED FROM ALTERATION. Natural vegetation � in shoreland areas will be preserved insofar as practical and r�asonable in order to retard surface runoff and soil erosion , and to utilize excess nutrients . Clearcutting will be prohibited. In areas- of soil � or wave action erosion , natural stone rip rap shoreline protection will be encouraged . . 10 . LAKE BED ALTER.ATIONS WILL BE DISCOURAGED BECAUSE OF ADVERSE SHORT-TERM AND LONG-TERM EFFECTS ON WATER QUALITY. Dredging .of lake beds releases large amounts of otherwise trapped nutrients and silt which adversely affects water quality for long periods of time . Dredging of new chaz�nels or inlets will not be approved to provide riparian access where none existed naturally. Dredging will be permitted in limited circumstances only where absolutely necessary to maintain existing natural riparian access permanently lost by something beyond the control of the landowner. Periodic low water conditions or the owner ' s desire for deeper draft watercraft are not suffici�ent reasons for disrupting sensitive lake beds . cr� 3-20