The District’s work to find a phosphorus compliance solution for Badger Mill Creek
Excess phosphorus is harming Wisconsin waters, making water quality standards increasingly restrictive. The Wisconsin Department of Natural Resources (WDNR) enforces these standards through the federal Clean Water Act and the state’s Phosphorus Rule, established on December 1, 2010. These rules set maximum thresholds for phosphorus in Wisconsin’s surface waters and set procedures through permits designed to help curb the growing issue. Due to Phosphorus Rule requirements, Madison Metropolitan Sewerage District spent several years developing a set of compliance options for Badger Mill Creek, one of our discharge streams.
What is Project PLUS?
Project PLUS (Phosphorus Limits & Updated Solutions) reflects our work in 2022 and 2023 to determine a final phosphorus compliance solution for Badger Mill Creek.
Through technical assessments, community engagement and ongoing partner conversations, PLUS had three goals:
- Achieve phosphorus compliance standards.
- Minimize harm to the biology of the stream.
- Maintain fiscal responsibility to ratepayers and owner communities.
At its May 25, 2023 meeting, the District’s Commission approved, via resolution, the discontinuance of effluent, or cleaned wastewater, to the Badger Mill Creek to meet its permit requirement for phosphorus compliance in that waterway. This compliance solution is now moving through a regulatory process, which could take a year or more.
The Commission also approved $1 million in projects to support the health and resiliency of Badger Mill Creek and formed a stakeholder group to develop a portfolio of projects.
FAQs On Phosphorus and Project PLUS
Studies and Assessments
Final Compliance alternative Solution
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