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TMDL overview
Overview of TMDLs.
TMDL development
TMDLs in development.
TMDL approvals
List of TMDLs approved by USEPA.
TMDL implementation
TMDL implementation.
Wastewater, storm water, CAFOs
Point source issues in TMDLs.
Nonpoint source
Runoff and stormwater related to TMDLs.
TMDL map and projects
Map of TMDL Projects and New Dynamic Project Pages.
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Contact information
For information on the Wisconsin River Basin TMDL, contact:
Kevin Kirsch
Wisconsin River TMDL project manager

Wisconsin River Total Maximum Daily Load (TMDL) A framework for water quality improvement

The Wisconsin River

The DNR, together with many partners throughout the basin, are working to improve water quality of the Wisconsin River, its reservoirs and tributaries. The Total Maximum Daily Load (TMDL) study and implementation plan will provide a strategic framework and prioritize resources for water quality improvement in the Wisconsin River Basin.

The Wisconsin River TMDL study area spans Wisconsin's central corridor from the headwaters in Vilas County to Lake Wisconsin in Columbia County, covering 9,156 square miles, approximately 15 percent of the state.

2018 public input opportunities

August 2018 public hearing

The DNR will host a public informational hearing on August 22, 2018, from 2-4 p.m. at the Portage County Courthouse Annex Building, 1462 Strongs Avenue, Stevens Point, WI 54481-2947.

A copy of the public hearing version of the TMDL Study and supporting material will be posted beon this page on August 20, 2018, replacing earlier versions of the report. The public hearing version of the TMDL Study incorporates input and comments received during the March listening sessions and comment period. The public informational hearing on August 22 will include a presentation outlining the modifications made.

February 2018 informational webinar and meetings

The DNR hosted an informational webinar on February 21, 2018, which kicked off a series of informational meetings to outline its efforts to reduce phosphorus loads in waters throughout the basin. The same content was presented at each meeting.

The Feb. 21, 2018, webinar provided an overview of the TMDL study and the supporting report.

On March 5, 6 and 14, 2018, the DNR hosted informational meetings providing an overview of the TMDL study and soliciting public input.

Draft report downloads

The following files were discussed during the Feb. 21, 2018, webinar and the March meetings.

Draft Report
Wisconsin River Basin TMDL Draft Report [PDF]
GIS Data
GIS Data including CAFOs, MS4s, Wastewater Outfalls and Subbasins [ZIP]
Appendices
Appendix A – Tributary Information and Charts [PDF]
Appendix B – Lakes Requiring Additional Evaluation [PDF]
Appendix C – Site-Specific Analysis [PDF]
Appendix D – Watershed Modeling Documentation [PDF]
Appendix E – Sediment Monitoring [PDF]
Appendix F – Base Line Load [PDF]
Appendix G – MS4 Detail Maps [PDF]
Appendix H – Total Phosphorus Loading Capacity of Petenwell and Castle Rock Flowages [PDF]
Appendix I – BATHTUB and Empirical Lake Models [PDF]

Appendix J – Allocations [PDF]

Appendix J includes four allocation tables:

  • Table J-1: Total Phosphorus Annual Load Allocations by Reach
  • Table J-2: Annual Total Phosphorus Wasteload Allocations by Permitted Point Source
  • Table J-3: Annual Total Phosphorus Wasteload Allocations by MS4
  • Table J-4: Annual Total Phosphorus Percent Reduction by Reach and to Meet Total Local Water Quality vs. Downstream Requirements

Appendix K – Proposed Site Specific Criteria Allocations [PDF]

Appendix K includes four allocation tables:

  • Table K-1: Total Phosphorus Annual Load Allocations by Reach
  • Table K-2: Annual Total Phosphorus Wasteload Allocations by Permitted Point Source
  • Table K-3: Annual Total Phosphorus Wasteload Allocations by MS4
  • Table K-4: Annual Total Phosphorus Percent Reduction by Reach and to Meet Total Local Water Quality vs. Downstream Requirements
Appendix L – Watershed Implementation Activities [PDF]
Appendix M – CE-QUAL-W2 Reservoir Model [PDF]

Overview of the project

A canoe and dog along the Wisconsin River

Map and spatial data viewer

Technical project details

Presentations and e-library

Last revised:Thursday August 09 2018