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Karth Lake Improvement District Board Meeting <br />April 9, 2019 <br />Page 2 <br /> <br /> <br /> <br />7.4. Explore: Use of Fountains/Aerator to improve lake water quality. Gary invites comments and <br />information on the installation of these devices to improve Karth Lake water quality. They will cool and <br />oxygenate the water and burn off some nutrients. Does Sue or Shawn have any information on their benefits, <br />or installation and maintenance costs? Is a permit required? Do we need approvals from all/some of the <br />residents on the lake? <br />7.5 Information: Seven Metro area cities filed separate lawsuits last year in U.S. District Court against a <br />group of seven companies that refine coal-tar sealants. They're asking for help to pay for cleaning up and <br />removing contaminated material from their stormwater ponds. (Gary will share information that may apply to <br />us if and when we remove silt from Karth Lake.) Related link: <br />https://www.mprnews.org/story/2019/01/08/driveway-sealants-polluted-minnesota-ponds-who-should-pay <br /> <br />8. NEXT MEETING <br /> <br />ADJOURN <br /> <br />