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Mounds View Planning Commission July 19, 2000 Regular Meeting Page 8 Mr. Howell stated the existing building is fairly simple so not much work will be needed. He explained that the east side of the building, the water park area and plaza, and the existing structure will all blend together. He stated they plan to add a new entry to the existing restaurant area in a style that is compatible with the new structure. Mr. Howell stated they are sensitive to the need to assure the structures blend and hold their character. Chairperson Peterson opened the public hearing at 7:51 p.m. Commissioner Kaden stated there is a holding pond behind Music Off 10 and another pond exists between the two existing buildings. He asked if that is where the new pond will be located. Planner Ericson stated the new pond will be farther west on County Road H, just beyond the Herbst property. City Engineer Keehn stated there are some wetlands in this area and they are aware there will be some impacts to this wooded wetland area. He stated the wetland has been delineated. City Engineer Keehn explained they would incorporate the pond into the school’s environmental system and add diversity to provide different types of wetlands. In this case, it will create more open water wetland areas for birds and ducks. He advised this is acceptable with the Rice Creek Watershed District and reviewed the additional calculations that would occur prior to construction. Commissioner Kaden asked how the filtration concept works. City Engineer Keehn stated the theory is that if there is enough depth in the pond, it will provide treatment, along with assuring there is enough distance between the entry and outfall. He stated in theory the pond will provide a 25-year sediment loss but this rate can depend on the amount of sand and salt in the water drainage. Chairperson Peterson asked if the business park property will be tied into this drainage system. City Engineer Keehn stated the actual drainage treatment area includes the south part of the existing business park building and a small area to the east. Chairperson Peterson asked if the entire business park area to the north will be included City Engineer Keehn stated it will not be included but the erosion concerns of the school will be addressed. He stated this project will also address the undeveloped area to the north that is zoned industrial/commercial which will need its own sedimentation pond but discharge through this area. This project will be designed to accommodate that in the future. Chairperson Peterson asked about the school district’s desire to make trail improvements. City Engineer Keehn stated the school may look at improving or expanding the trail system and this pond design will accommodate that as well. He noted this pond is designed as a regional pond so it will address drainage for that entire area.