Minutes - Planning Commission - 06/23/2022

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Mr. Fincher replied that the second and third pages are the cut sheets showing how the analysis is completed and for reference only. He stated that the first page shows the location of the field, bleachers,perimeter property line, and decibels around the property line. Commissioner Hunt commented that during the winter months there would not be much going on and assumed the same for the summer months, therefore the majority of activity would take place in the spring and fall. Mr. Fincher agreed that the most intense use of the field for sporting events would be in the spring and fall. He stated that for football there are ten to 12 games per year and not all of those games are held at the school site. He noted that the same would be true for track and field and soccer. Acting Chairperson Gengler commented that there have been some changes to the stormwater ponding and asked for clarification on those changes and what is hoped to be gained from those changes. Mr. Fincher stated that one of the biggest changes was looking at the grading to the basin. He noted that the original plans met the requirements, but they lowered that grade and made the basin wider. He stated that staff also requested that a topographical survey be done showing the impact to neighboring properties, which was completed and updated. He stated that the neighbors are concerned about stormwater and noted that they do hear those concerns and do not want to compound the existing issues in that area,therefore they want to work as a member of the team to ensure their design does not contribute to the standing water issues those residents experience after rain events. He stated that once the building and site are completed,the rain runoff would be at a slower rate than it currently is, which allows the wetland to drain in a better manner. He commented that they would be willing to look into reducing the size of the pipe from their basin into the wetland but noted that they would want input from staff and the Lower Rum River Water Management Organization(LRRWMO). Chairperson Gengler asked if the capacity of the basin increased, or whether it was just a change to the shape. Mr. Fincher replied that it was a change to the overall shape of the basin. G Eric Meyer, Larson Engineering, stated that they did meet with the neighbors to discuss the flooding and runoff from the wetland that the neighbors experience. He stated that on the east side of Variolite there is a 15-inch pipe that crosses Variolite. He noted that their original plan included a 30-inch pipe fiom the basin to the wetland, but they could reduce that pipe to a 15-inch pipe if desired. Commissioner Walker referenced the comment that the design as proposed would produce a lesser rate of runoff than currently exists. He stated that he does not fully understand that as any water hitting the site at this time could filter through the dirt, whereas after development there will be concrete and rooftop where dirt previously existed. Planning Commission/June 23,2022 Page 8 of 19 !