The Wisconsin Department of Natural Resources (DNR) is currently updating the NR 151, Wis. Adm. Code regarding nitrate pollution in groundwater.

The rule amendment proposes establishing agricultural nonpoint source performance standards targeted to abate nitrate pollution in groundwater areas of the state which are susceptible to groundwater contamination such that compliance with the nitrate standard can be achieved.

As part of this effort, the DNR is preparing an economic impact analysis (EIA) for proposed rule WT-19-19 relating to nitrate pollution in groundwater. A copy of the NRB approved scope statement for this rule is available for download here under Agenda Item 2D.

A full list of the proposed permanent administrative rules currently being developed by the DNR, or which have been adopted by the Natural Resources Board (NRB) and are pending publication, are available here. Scroll down to WT-Watershed Management section for all related materials.

If you cannot access or download the information, for assistance please email:

The DNR will accept written comments on the EIA from the public until April 10, 2021. Please see the notice for additional detail on the input requested. A separate public comment period on the rule itself will be held after the EIA is finalized.

Please submit written comments by email to or by mail:

Wisconsin Department of Natural Resources
C/O Mike Gilbertson – WT/3
P.O. Box 7921
Madison, WI 53707

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