02-16-2010 Planning Commission Packet

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b. Tree survey, including all significant individual trees greater than six feet diameter, and stands of trees, identifying tree species and size. c. Wetland inventory, including delineation reports. d. Topographic survey indicating existing drainage patterns. e. Analysis of the site based on the findings and recommendations of the Orono Natural Resources Inventory with regards to: •Conceptual greenways and open space corridors; •Existence of rare plant communities; •Potential need for proactive management and protection. Sec. 78-1635. Basic Conservation Design Master Plan requirements and evaluation criteria. The developer shall prepare a Conservation Design Master Plan for development of the property, consisting of written and visual documentation including maps in an acceptable electronic format, addressing the following topics: (1) Consideration of the existing drainage system; (2) Establishment of a stormwater management system, using multi-cell treatment principles, and defining proposed methods of stormwater phosphorus reduction; (3) Removal of invasive species and diseased trees; (4) Protection of significant tree stands and woodlands that support scenic and/or ecological goals, including mitigation of any such stands to be impacted by development activities; (5) Protection of existing wetlands, including augmentation of buffers, mitigation of impacts, and enhancement of degraded systems; � (6) Justification and mitigation of any negative impact to ecological communities. "Negative impact" includes any modification to a lower level of ecological community quality, as described by the Minnesota Land Cover Classification System (M-34X Modifiers); (7) Maintenance of ecological connections through site design, as shown on the�Orono Natural Resource Inventory; (8) Maintenance and protection of existing positive views, and mitigation of any existing or proposed negative views using appropriate measures such as site layout, screening, building design and coloration, etc.; and (9) Preservation or reinterpretation of existing landmarks. The planning commission and city council shall evaluate the Conservation Design Master Plan to determine whether the proposed development: (1) Preserves existing drainage patterns and enhances stormwater collection and conveyance by . applying an ecologically-based multi-cell stormwater management system that improves ecosystems by reducing reliance on manmade infrastructure, reducing downstream runoff of contaminants, and enhancing ecological connections 3