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Lake Elmo Lake Association <br /> Mail: PO Box 78, Lake Elmo, MN 55042 <br /> Email: lakeelmolakeassociation@gmail.com <br /> Website: lelamn.org <br /> Lake Elmo Lake Habitat Restoration Project <br /> Aquatic Invasive Species (AIS) <br /> 3 Year Treatment Plan Proposal <br /> The Lake Elmo Lake Association (LELA) worked with Meg Rattei (Barr Engineering) and Patrick Selter (PLM Lake <br /> Management) to identify an effective treatment to eradicate Eurasian Watermilfoil (EWM/HWM) and Curly Leaf Pondweed <br /> (CLP) from Lake Elmo Lake. <br /> Based on the latest research, and the successful results seen in other local lakes, LELA recommends a “Whole-Lake” Sonar <br /> A.S. (Fluridone) Fall/Spring Treatment. The Fall/Spring application consists of an initial application of fluridone completed by <br /> early October, followed by a bump application in early November. One or more additional bumps are applied in the spring <br /> following the initial treatment. This approach has been proven effective in other area lakes. <br /> Fall 2023-Spring 2024 fluridone treatments applied to Silver Lake, Long Lake, and Lake Jane yielded positive results: <br /> ● Silver Lake <br /> ○ Required 3 spring bumps (April 6, May 8, and June 12 following October application) <br /> ○ HWM declined from 71 acres in June 2023, to 3 acres in June 2024* , to “not observed” in June 2025 <br /> ● Long Lake <br /> ○ Required 2 spring bumps (April and May) <br /> ○ EWM declined from 29 acres in June 2023, to 20 acres in June 2024* , to 2 acres in Sept. 2024, to 0.2 acres <br /> in June 2025 (Long Lake was treated with diquat and ProcellaCOR in Sept. 2024 and Sept. 2025). <br /> ● Lake Jane <br /> ○ Required 2 spring bumps (April and May) <br /> ○ EWM declined from 51 acres in June 2023, to 11 acres i n June 2024* , to 0.3 acres in June 2025 <br /> * Note: The June 2024 surveys were completed while the treatment was still occurring. <br /> Fall 2022-Spring 2023 fluridone treatments applied to Lake DeMontreville and Lake Olson showed similar success: <br /> ● Lake DeMontreville <br /> ○ Required 1 spring bump (May 2 following October application) <br /> ○ EWM was “not observed” during June 2023-2025 <br /> ● Lake Olson <br /> ○ Required 1 spring bump (May 2 following October application) <br /> ○ EWM was “not observed” in June 2025 <br /> Sources: The VBWD Results of 2024 Point-Intercept Aquatic Plant Surveys report, and the results of the 2025 Point-Intercept <br /> Aquatic Plant Surveys (report in process, not yet published) <br /> Page 1 of 4