Phosphorus Rules Revisions

In accordance with the procedures of Chapter 227, Wis. Stats, revisions to Wisconsin’s Phosphorus Water Quality Standards for surface waters were developed. These revisions took effect on December 1, 2010 following the publication of chapters NR 102 and NR 217 in the Wisconsin Administrative Register, which occurred on November 30, 2010. Changes have also been proposed to chapter NR 151 to revise agricultural performance standards and prohibitions for phosphorus. These changes took effect January 1, 2010 following the publication of NR 151 in the Wisconsin Administrative Register.

Know the Rule

Rule content is available for download:

To help explain the revised rule content in NR 102, NR 217, and NR 151, a question and answer-style rule summary document [pdf 38KB, 5 pgs.] has been created. If you have questions, comments, or feedback about rule content, or the descriptive questions and answers, please email us at DNRPhosphorus@Wisconsin.gov.

Rule Implementation

Department staff has developed supporting resources to assist in phosphorus rule implementation including Guidance for Implementation of Wisconsin's Phosphorus Water Quality Standards [PDF 1.41MB, 158 pgs.]. Please note that this document may be evolved as the Department addresses more of the many unique circumstances related to phosphorus implementation. A bulk e-mail announcing availability of updates to Guidance will be sent whenever new information is available.Contact

If you wish to provide recommendations for rule guidance or provide feedback on matters related to the Phosphorus Water Quality Standards, please email us at

DNRPhosphorus@Wisconsin.gov

You can also mail your feedback to:

Bureau of Watershed Management
Attn: Amanda Minks - WT/3
Department of Natural Resources
PO Box 7921
Madison, WI 53707-7921

Additional Resources

Additional resources are available, including:

Last Revised: Friday January 06 2012