01-10-23 Agenda Packet - Laserfiche WebLink

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with past variability and are not by themselves indicative of negative trends in water quality. • There were some moderate algae blooms in late 2021, but not much worse than blooms in 2017, and much better than blooms in 2008-2010 • Karth Lake continues to meet State Water Quality standards for all parameters (phosphorus, chl-a, and clarity). For a suburban shallow lake, water quality in Karth Lake is good. Based on Met Council’s grading system, Karth Lake gets a “B-” Action: Gary will continue to be the lead for water quality monitoring in 2022. The sampling in 2022 will be the same as in 2021: Andrew Elmquist will cover first and last thirds of the sampling season and Renee Marino and Jim Elliott will do the middle third. 7.3 Open Meeting Policy – New Topic Background: The City of Arden Hills set up this board meeting as in-person only. Although they allowed board members Linda Hansohn and Susan Johnson to attend remotely via a conference call, the city did not count them as contributing to the quorum required to hold the meeting. Although a quorum was obtained in this meeting, it is a problem for future meetings. Specifically, COVID continues to be a potentially life-threatening risk for those with auto-immune deficiencies. Discussion: Susan Johnson, an attorney, expressed a concern that requiring in- person attendance violates current open meeting laws in Minnesota. Action: Susan offered to prepare a brief written summary of open meeting laws and their relevance to KLID board meetings. She will provide that write-up to Steve Scott before the next board meeting. 7.4 Sediment Growth – New Topic Background: Gary expressed concern that the level of sediment at a street sewer by his house is approximately three feet higher than it was when he moved in. Discussion: Kathy said she has observed a similar rise in an outlet by per property. Tony said he has observed an “alluvial fan” of sediment extending from the street sewer outlet on the south end of the lake by his property. David suggested that the rate of new sediment entering the lake should be greatly diminished going forward for those that have been retrofitted with grit chambers. Street sweeping soon after snow melt can remove grit left over from snow removal efforts before they enter the street sewers. He also said that storm sewers draining from Shoreview properties and Lexington Avenue are managed by Ramsey County, not Arden Hills. Gary suggested that sediment removal should be reconsidered once the last grit chamber is installed. Action: David agreed to bring the Ramsey County and Lexington drainage maps to the next meeting so we can assess next steps, if any, to address those sources. 7.5 Tour for new attendees – New Topic Background: New attendees to KLID meetings requested a tour of Karth Lake. Specifically, City Council Member Steve Scott has been newly appointed by