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CMP Part 3A. Environmental Protection Plan <br /> 4. All existing urban wetlands will be maintained and protected for <br /> surface water retention and filtration. The existing urban runoff <br /> exceeds the capacity of the urban marshes to assimilate all nutrients, <br /> therefore additional pollution hazards would be created if any wetlands <br /> would be lost. Additional steps to improve nutrient assimilation include <br /> on-site retention on all new developments and storm water recycling <br /> through the existing marshes. _ <br /> 5. City maintenance practices will be designed to improve storm water <br /> quality. Salt use for winter street treatment will be minimized. Snow <br /> removal practices will locate temporary storage sites where they will not <br /> overload the natural drainage system or where foreign matter, especially <br /> salt, will not directly enter a marsh or lake. Spring cleanup will promptly <br /> remove road sands and salts before environmental damage occurs. <br /> 6. A significant amount of natural woodlands and open space will be <br /> retained on each property. Retention of the natural environment <br /> requires careful siting and preservation of trees and open space on each <br /> urban property. <br /> 7. All developments will be designed to assure protection of light, air, <br /> and solar access for neighboring properties. Requirements for <br /> minimum lot size, amounts of open space, minimum yard setbacks, and <br /> maximum building heights will be designed to assure protection of these <br /> values for all urban residents. <br /> RURAL AREA POLICIES FOR NATURAL RESOURCE <br /> MANAGEMENT <br /> L Land use standards will limit the pollution loading of rural marshes <br /> and drainageways. Rural densities will be low enough to ensure <br /> permanent reliance upon satisfactory on-site sewer and water systems <br /> where municipal sewer is not feasible and to ensure that rates of <br /> phosphorus and nitrogen generation will not adversely affect the water <br /> quality in the natural drainage system. <br /> 2. Rural land use densities will allow maximum retention of private <br /> woods and open space. Low rural densities will accommodate homesites <br /> without affecting the traditional vistas of open fields and woods. The <br /> retention of these woodlands and marshlands will then assure permanent <br /> habitat for our abundant wildlife. <br /> City of Orono Community Management Plan 2008-2030 Page 3A-50 <br />