Aquatic Invasive Species

Aquatic invasive species (AIS) are those organisms, including nonnative plants, animals, and pathogens, which once introduced to a new environment, invade ecosystems beyond their natural, historic range. They are responsible for the degradation of biological integrity and cause economic loss, overall environmental damage, and harm human health.

In the most recent years, zebra mussels and silver carp have been focal points for AIS prevention measures in Minnesota waters. However, several other species pose an imminent threat to our precious water resources. These additional species include Eurasian watermilfoil, curly leaf pondweed, flowering rush, bighead carp, spiney water flea and faucet snails.

2024 Request for Proposals - Using Local Aquatic Invasive Species Prevention Aid

For the 2024 calendar year, Waseca County will be offering Local Aid Grants to cities, lake associations, schools, non-profit organizations, and/or other management agencies within the County for implementation of actions supporting the Waseca County Aquatic Invasive Species Prevention Plan. Actions eligible for funding must “prevent the introduction or limit the spread of aquatic invasive species at all access sites within the county,” in accordance with MN Statutes 477A.19.

Information regarding the grant application will be posted to the Land and Water Resources webpage in early 2024. Questions regarding the Local Aid Grants or to be put on a notification list can be directed to Eric Miller, Waseca County AIS Coordinator, 900 3rd St NE, Waseca, MN 56093, or e-mailed in to: Subject: “2024 AIS Prevention Aid RFP.”

Waseca County Aquatic Invasive Species Prevention Plan

With the adoption of the first generation of the Waseca County Aquatic Invasive Species Prevention Plan in December of 2014, the County and its partners are currently taking measures to combat the spread of these environmental hazards. Through a partnership with the Department of Natural Resources (DNR), the County has created a list of actions to implement in order to prevent the spread of AIS within our waters. These actions include goals to:

•             Increase Understanding of AIS Associated Risks and Spreading Pathways;

•             Develop and Implement Activities that Address Identified Pathways;

•             Increase Awareness of and Participation in Prevention and Management Activities;

•             Broaden Knowledge of and Participation in Early Detection and Rapid Response Activities;

•             Increase County Enforcement Resources; and

•             Increase Available Resources and Leverage Partnerships.

Actions that may be implemented to accomplish these goals are described in the County AIS Prevention Plan at the link below.

Waseca County Aquatic Invasive Species Prevention Plan

Local Partners

Waseca Lakes Association (WLA) 

WLA Newsletters

DNR Infested Waters List

Waseca County currently has two waters listed as infested on the Minnesota DNR Infested Waters List. This list was last updated on August 4th, 2023, and includes Clear Lake and Reeds Lake as infested by Eurasian watermilfoil. Please reference the link below to see other waters that are currently infested by AIS within Minnesota.

MN DNR Infested Waters List

Before leaving a lake, Minnesota’s aquatic invasive species laws require boaters and anglers to:

  • Clean aquatic plants and animals from watercraft.
  • Drain all water by removing drain plugs and keeping plugs out while transporting watercraft.
  • Dispose of unwanted bait in the trash.


For more information on aquatic invasive species prevention and how to report a suspected infestation visit