Natural Waterbodies

Attention: new DATCP fish farm registrants

The Department of Agriculture, Trade, and Consumer Protection (DATCP) requires that new registrants receive a Natural Waterbody Status review (Proof of Status Letter) from the Department of Natural Resources (DNR) prior to registering their waterbody(s) or facility as a DATCP fish farm. "Natural body of water" means a spring, stream, pond, lake, or wetland historically present in a natural state but may have been physically altered over time. If the DNR determines that your waterbody(s) or facility meets this definition and is not exempt due to other permits (Statutes 30.19 dredging/grading/enlarging; 30.195(a) stream course alteration; or 31.04 dams), then a Natural Waterbody Permit will be required prior to registering as a DATCP Fish Farm. Conversely, suppose the waterbody(s) or facility does not meet the natural body of water definition or is exempt. In that case, a Natural Waterbody Permit will not be required prior to registering as a Fish Farm.

To obtain this review and determination letter, fill out a Natural Waterbody Review Application (Form 3600-227A) [PDF] and email the completed application to the Natural Waterbody Permit Coordinator or mail it to:

DNR Natural Waterbody Permit Coordinator
Wisconsin DNR, Bureau of Fisheries Management
101 S. Webster Street
Madison, WI 53707

Natural water body permit

A permit is required from the Department of Natural Resources (DNR) for any DATCP-registered fish farm to use a natural body of water for its aquaculture operation. Section 29.733, Wisconsin Statutes establishes the permit program, and NR 19, Wisconsin Administrative Code, explains the permit process and requirements for operating a fish farm in a natural body of water.

A waterbody the DNR licensed on Jan. 1, 1998, as a private fish hatchery may be eligible for a Grandfathered NR 19 permit. Otherwise, using a natural body of water for fish farming is limited to freeze-out ponds and requires an Initial NR 19 Permit. Under the Initial NR 19 permit review, a permit is only issued if DNR determines that no substantial public interest exists in the body of water and that no public or private rights in the body of water will be damaged. If a property is sold, a permit is required to transfer an NR 19 permit to the new owner.

To apply for an NR 19 permit, complete Form 3600-227 [PDF] and submit it along with the necessary attachments to your local Fish Farm Environmental Permits Coordinator.

Public notice on permit applications

The DNR will post a notice of every natural waterbody permit application on its website according to the 2011 Wisconsin Act 207. The DNR may grant the application without a public hearing if no substantive written objection is received 30 days after posting. Permits will be granted if the DNR finds that no substantial public interest exists in the waters and that no public or private rights in the waters will be adversely impacted. Public rights include plant and wild animal habitat or populations; water quality and quantity in lakes, streams or rivers; threatened or endangered species or their habitats, wetlands; and the public's right to navigate and associated incidents to navigation including fishing, swimming, wading and canoeing. Because all navigable waterbodies in the state belong to the public, state law requires the DNR to request if anyone has an objection to the permit.

Permit applications

For more information, you can download our factsheets: 

• Natural waterbody permits for fish farms [PDF]
• Environmental permits for Wisconsin fish farms [PUB FH-059, PDF]
• or contact your local DNR Fish Farm Environmental Permits Coordinator [PDF]

Note: The information provided on this web page is for general orientation purposes only. Do not rely solely on the information provided on these web pages. For more information, please contact your local DNR Fish Farm Environmental Permits Coordinator [PDF]