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Michael Noonan explained the proposed green corridors through the site. Adam Arvidson explained the "green layer" and corridors within the parking lots, including a 10-foot landscaped median with a five foot sidewalk as well as cross walks between islands. He showed section drawings of the landscaped medians and infiltration basins with natural water loving vegetation. Photos were shown of projects with such improvements. Joe Samuel, RLK Engineer working with the Master Developer, explained the shoreland ordinance impact on the lake edge (OHWL). He explained the shoreland impact zone and shoreland management boundary of 300 feet. He noted that the east and west sides of the proposed master plan may be closer than 300 feet, and roadways may have setbacks closer to the lake than 300 feet. Both of these may be subject to the MnDNR Shoreland Management Regulations. Joe Samuel explained the impervious surfaces. Approximately 30% of the Langton Lake shoreland management area (within 300 feet of the shore) is impervious. In the proposed master plan development, the impervious surface is reduced to 23%. Chair Mulder asked what the entire site master plan impervious area was (78% existing vs. proposed at 70%). As requested on October 6, 2004, Michael Noonan explained what the development might look like from the park. Tim Whitten, Rottlund Architect, explained the setback view of the senior buildings in the background and townhomes to the west, behind the trees in Langton Lake Park. Michael Noonan explained the "round-about" idea which originated with the public works staff and Utilities/Public Works Commission. The "round-about" can be an effective traffic management tool. Duane Schwartz, Public Works Director, explained four reasons for use of "round-abouts": safety, efficiency, no additional maintenance, better aesthetics and costs. Steve Wilson, the city's traffic engineer, noted that 20,000 trips are generated by the new Phase 1 proposal. The peaks are 1 0% (2,000 trips) of the total. He gave examples of peak traffic for four types of uses: 800 trips peak hour Big Box 600 trips peak hour Support Retail 200 trips peak hour Office 400 trips peak hour Residential In Phase 2 additional traffic could add 1 ,500 trips in peak times. Chair Mulder asked if the peaks are at different times for different uses. Steve Wilson explained traffic distribution: 20% to north 35W and 15% to south 35W. Chair Mulder closed the staff/consultant question and answer portion of the meeting. Robert Rouda, 946 Lydia Drive, asked if bike and bus or other mass transit might be used in relation to the site. (Bike and pedestrian areas are in the Plan). What trolley could be used? On another issue, are the trees deciduous? (Yes) What would be the view in winter? Meg Rattei, 3063 Mt. Ridge Road, asked for details of new 7050 rules effective in 2005 and the impacts on the site. They regulate non-source point pollution and the water quality of the lake. She explained phosphorous, clarity and development impacts. The lake does not meet those roles. The PCA will evaluate the lake to determine impairment from non-source point pollution. The PCA can establish a development moratorium on the lake's watershed. The Planning Commission should do a TMDL study; it should be done to monitor and clean the lake. Ponds do not take out soluble phosphorous. Water can be treated by infiltration or use of alum. Yule Yost, 3015 Fairview Avenue, stated there were four inlets into the lake, with one outlot. Does there need to be a second outlot? Joe Samuel noted that all storm water will be treated and held back in ponds from entering Langton, reducing the amount of water entering the lake (where today there is street drainage to the Lake). He explained drainage into the lake existing and as proposed. The lake will receive no more watershed water. Mr. Yost noted that his yard has flooded. There is a culvert filled with cattails that he opens on C-2 to drain water from Langton. Comments: Steve Burwell, 2482 North Albert, Fairview Wine and Spirits, expressed concern with traffic at p.m. peaks. Traffic will come in all directions to "c" and Cleveland. A large traffic congestion area will occur, move north into the adjoining side streets and into Arden Hills and New Brighton. New stop lights will be needed. Traffic on Fairview will be difficult. More stop lights will slow traffic. What is the economic impact? Will the merchants be impacted? The City has not advised the businesses of the Twin Lakes proposal. More retail does not help existing businesses.