01-10-23 Agenda Packet - Laserfiche WebLink

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would be allowed on October 11, 2022. Longer term policy to be fully explained later. This issue is therefore not resolved. 5.6. Sediment Growth: David Swearingen 5.6.1 Background: Board members noted that sediment levels around street sewer outlets into Karth Lake have risen in at least the past two decades. While past KLID board and City of Arden Hills efforts should have reduced the rate of new sediment inflow, David noted that the City of Shoreview and Ramsey County manage drainage into Karth Lake from Lexington. To begin addressing these sources, David agreed to share a map of that drainage system at the next meeting. Discussion: David Swearingen did share an online map of drainage on the east side of Lexington, as well as the grit chamber map discussed above. He also shared that his team is studying its management of multiple filtration ponds throughout Arden Hills. They currently measure depth of storm ponds during the winter by drilling holes in ice and dropping a pole. This study will address whether and how sediment should be removed from those ponds. He will include consideration of Karth Lake in that study. Using a similar method to measure sediment grown in Karth Lake might be possible, but more difficult. 5.7. Tour for new attendees: Steve Scott 5.7.1 Background: At his request, the new City Council Liaison, Steve Scott, was given a tour of Karth Lake. We welcome his observations and follow-up questions to the board. Discussion: Steve thanked the board for the tour and found it to be both enjoyable and helpful in understanding the issues addressed by the board. He suggested that a group walk around the lake would be a valuable and fun annual event. Many in attendance agreed. 6. NEW BUSINESS 6.1. Planning process for replacing retaining wall on Karth Lake. David Swearingen 6.1.1 Background: The City of Arden Hills’ budget for next year includes funding to replace the Karth Lake retaining wall at the pump site. Kyle Axtell told board members in May 2022 that there would be many options to the design of such a retaining wall. The KLID board would like to understand the city’s plans for the design process and assure that the KLIDB and the public has input within that process. Discussion: As discussed in item 5.1 above, David Swearingen said the budget for the retaining wall replacement has been moved to 2026 and will be addressed as a part of the 2026 Pavement Management Program project for the streets around Karth Lake. 6.2. Boston Scientific Lexington Parking Expansion. David Swearingen, Steve Scott