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ARDEN HILLS SPECIAL CITY COUNCIL WORK SESSION — JUNE 23, 2025 5 Councilmember Holden said she has been in those backyards and there is a constant noise from that building. The constant noise from the filtration system is what they are hearing. It's never quiet in those backyards. Larson said there should be an improvement with this wall. They aren't saying there won't be any noise. Councilmember Holden understands. She said they seem fixated on the trucks coming and going. She just wanted to point out the calls are in regard to the noise from the filtration system. Larson explained that their analysis included those noise sources. Councilmember Holden said her only advice is, when talking to the neighbors, talk about all the noises not just the beeping trucks. Mayor Pro Tem Monson paused the meeting to bring Mayor Grant into the meeting who was participating remotely. Mayor Grant said he could hear the meeting but he could not see, as is required by statute to participate in a remote meeting. He decided to disconnect from the meeting and he would watch the playback at a later time. Evans showed a graphic outlining the footprint of the building and the location of the noise wall. The wall would be approximately 15 feet off of the property boundary. It would be a little further from the edge of the trail. Larson pointed out the location is not an arbitrary location. They considered different positioning of the wall, closer to the building, to allow for more of a landscaping buffer. The wall was less effective when it was closer to the building, unless the wall was much taller. They couldn't go any closer to the property line and still construct the footings and foundations required. Evans said they can't extend the wall further to the south because of the existing wetland there. He stated some trees will need to be removed to build the wall. The wall will be built from the Boston Scientific side. Everything on the other side of the wall will be preserved, in place. Many of the trees on the side of the wall where the homes are, will be saved. The neighbors will be looking at mostly the same trees they have been looking at. The trees that are removed on the Boston Scientific side of the wall will be replaced. Councilmember Weber asked for confirmation that the trees between the wall and the trail will be preserved. He would prefer to see a tree preservation and tree removal plan. There are a lot of nice trees in that area. Larson said they have hired a firm to survey the topography and that included a tree survey. Many of the trees are Ash trees and not in very good shape. He will provide a tree preservation plan as part of the land use application. He said the majority of the heavy activity from this wall will be on the Boston Scientific side. They are going to construct a temporary pathway that will be deconstructed upon completion. This pathway will cover civil engineering needs. There is a bio-filtration basin. There will be some trees that have to be replaced on the homes side of the