The Lower Fox River and Green Bay TMDL: Phase I

Phase I of the TMDL was a preliminary exercise to explore the cost-effectiveness of best management practices intended to reduce phosphorus in the basin. The Cadmus Group, an independent consultant, was retained under contract by the U.S. EPA to conduct the Phase I study. Cadmus used a phosphorus reduction goal of 50% to develop cost estimates. That goal was selected based on targets from the Green Bay Area of Concern Remedial Action Plan published in 1993. However, this reduction does not represent the targets that will be chosen for the final TMDL. A final report was completed and provided to the DNR. The report was a good start at looking at various local agricultural practices, however as the Department moves toward TMDL Development, we will consider additional information related to various local agricultural practices, best management practices for stormwater, construction site erosion control and more up-to-date point source information. The report can be viewed using the following link:

Phase I: The Final Report: An Integrated Approach Demonstration Project [PDF 1.27MB]
Phase I Appendices (provided by The Cadmus Group and U.S. EPA) [PDF 2.58MB]
Point Source Dischargers Meeting (August 22, 2007) [PDF 1.64MB]