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1. Natural landscaping, habitat protection and vegetative screening 2. Water quality, quantity, and storage 3. Setbacks to protect slopes, wetlands, and shoreline (if applicable) 4. Subdivisions of land and availability of city utility services 5. Floor coverages, drainage, ponding and erosion prevention 6. Open space preservation techniques Michael Noonan, Tim Whitten, Joe Samuel, Adam Arvidson presented details on the Twin Lakes Rottlund proposal. Tim Whitten explained the overall master plan proposal. He explained the process of review including the Stakeholder process. The new parkway has been designed as a continuous roadway through the site. The larger retailers had been moved closer to County Road C and Cleveland. A focused "center" concept was redesigned. With those changes, the Stakeholders were asked for feedback by the Master Developer. He explained the housing elements on the site plan, with better, four-story housing nearest the center focus of the site. Young professionals and seniors are the primary market. Joe Samuel, Rottlund/RLK Engineer, explained the proposed right-of-way plan and road widths. He explained round-abouts for Prior at the Parkway. Member Doherty asked about the impact of pedestrian crossways on round-abouts. This requires new driving and walking behavior. Deb Bloom explained there would be fewer left turn conflicts with a round-about, making the access points safer. Chair Traynor asked staff and consultants to prepare a report on round-abouts. Joe Samuel explained storm water/surface water drainage systems throughout the site. Ponding will be required to have infiltration in sandy soils. For water quality, the project will collect a two-year, 2 % inch rainfall. A series of ponds will capture the water. Chair Traynor asked if treatment in the ponds will be clean and attractive. (A two cell pond will be used to capture water in the first cell, then drain to a dry cell. The first cell will be used to capture sediment and debris for later clean up.) Fountains can be used to aerate the ponds. The drainage areas into the lakes are similar with 41 acres (existing) to 42 acres (proposed) draining to the lake, but in a higher quality level. (Water quality should improve in Langton Lake). Adam Arvidson, Landscape Architect, explained the design of green spaces and "green layer". Links to Langton Lake will add more green space from the development. The green space of the park expands into the site. Mr. Arvidson explained that storm water management is now done within an amenity (Heritage Park in Minneapolis). Swales and vegetation will be used for infiltration, including in parking lots. He explained trail and sidewalk plans. Chair Traynor asked if the Parks and Recreation Commission had any reaction (October 5th). Michael Noonan explained responses are best described in the Commission meeting notes. Chair Traynor asked if there will be park dedication. The Parks and Recreation Commission made no decision until more detail was available. General discussion ensued. Member Pust asked for details or support for the round-about as a "green layer". Adam Arvidson explained round- abouts can signal as a transition to a new land use or park/open space. Member Pust asked for details of raised parkway trails and sidewalks. Michael Noonan explained the proposed pedestrian ways. Member Doherty asked how the pathways/sidewalks will be different than from "walking through a parking lot". Green islands could be raised or lowered areas in parking lots with sidewalks. Examples will be provided at the next meeting. Chair Traynor asked what the "signature concept" of Twin Lakes would be - such as Arbor Lakes and Heart of the City. What is the unique community benefit? Tim Whitten explained the unique opportunity to bring housing together, closely with retail and office - a small town center adjacent to Langton Park. Tim Whitten explained the housing will be denser, there will be mixes of uses; residences will be adjacent to shops and restaurants such as (Westridge Market in Minnetonka). Small shops need bigger economic engines. Michael Noonan added that a new neighborhood can tie existing and proposed development together. Heart of the City is a similar example. Arbor Lakes feature is its main street. Centennial Lakes has a green corridor with a storm water amenity among a mixed housing/retail area. Member Ipsen asked for details of parking. Is all the parking necessary? (especially in the southwest corner). (Uses a mix of uses and peak times to reduce pavement). Member Pust asked why the Big Box cannot be located at the corner of "c" and Cleveland. (Do not want back side