Taking Care of North and South Twin Lakes
This summer, the North & South Twin Lake District will work with experts from TIGRIS Aquatic Services, LLC to to address the growth of the invasive aquatic plant Eurasian watermilfoil (EWM). About 7.8 acres of North Twin Lake and 33.4 acres of South Twin Lake will be treated using a specialized herbicide called ProcellaCOR EC.
The treatments are expected to happen in June 2025, but only after we get the necessary permit from the Wisconsin Department of Natural Resources. We’ll let you know the exact dates of the treatments ahead of time by posting notices along the shoreline near the treatment areas and at public access points.
There are no major restrictions for using the water during and after treatment. The only exception is a 5-day waiting period for watering non-turf plants like gardens or flowers. Lawns (turf) can be watered right away.
Thank you for helping us keep the lakes healthy and beautiful!
Read the letter from The North & South Twin Lakes district to property owners.
North & South Twin Treatment Maps
North Twin Lake
South Twin Lake
Public Legal Notice
The North and South Twin Lakes Protection and Rehabilitation District (the District) proposes to manage 7.8 acres of North Twin Lake and 33.4 acres of South Twin Lake to control excessive growth of the exotic invasive aquatic plant, Eurasian watermilfoil. TIGRIS Aquatic Services, LLC will conduct an application of the aquatic herbicide ProcellaCOR EC (florpyrauxifen-benzyl) to infestations. It is anticipated that the application will occur sometime in June, 2025 and will proceed only after the District obtains a permit for the treatment from the Wisconsin Department of Natural Resources.
The water use restrictions for ProcellaCOR EC are as follows: Do not use water from application areas for non-turf irrigation purposes for 5 days (turf can be irrigated immediately).
The District will hold a public informational meeting on the proposed project if five or more individuals, organizations, special units of government, or local units of government request one in writing. The person or entity requesting the meeting shall state a specific agenda of topics including problems and alternatives to be discussed.
The request for a public informational meeting must be sent in writing to: North and South Twin Lakes Protection and Rehabilitation District, PO Box 152, Conover, WI 54519 and to Wisconsin Department of Natural Resources, 107 Sutliff Ave, Rhinelander, WI 54501 within 5 days after the publication of this notice.
Need to get in touch?
We’re here to answer your questions about lake management, local projects, or community involvement. Reach out for support, share your thoughts, or learn more about the North and South Twin Lakes District.
