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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.

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 report, supporting appendices and GIS data can be downloaded below. A summary document [PDF] has also been created that outlines the changes made to the TMDL.

Comments will be accepted through September 19, 2018. Submit comments by email to Kevin Kirsch, or via mail to:

Wisconsin Department of Natural Resources
Attn: Kevin Kirsch
101 S Webster Street
PO Box 7921
Madison WI 53707-7921

Draft report downloads

Draft Report
Wisconsin River Basin TMDL Draft Report (August 2018) [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 Current Criteria [PDF]

Appendix J includes five allocation tables:

  • Table J-1: Total Phosphorus Annual Load Allocations by Reach for Current Criteria
  • Table J-2: Daily Total Phosphorus Allocations by Reach for Current Criteria
  • Table J-3: Annual Total Phosphorus Wasteload Allocations by Permitted Point Source for Current Criteria
  • Table J-4: Annual Total Phosphorus Wasteload Allocations by MS4 for Current Criteria
  • Table J-5: Annual Total Phosphorus Reductions from Baseline Conditions to Meet Local and Downstream Current Criteria

Appendix K – Allocations Proposed Site-Specific Criteria [PDF]

Appendix K includes five allocation tables:

  • Table K-1: Annual Total Phosphorus Allocations by Reach for Proposed Site-Specific Criteria
  • Table K-2: Daily Total Phosphorus Allocations by Reach for Proposed Site-Specific Criteria
  • Table K-3: Annual Total Phosphorus Wasteload Allocations by Permitted Point Source for Proposed Site-Specific Criteria
  • Table K-4: Annual Total Phosphorus Wasteload Allocations by MS4 for Proposed Site-Specific Criteria
  • Table K-5: Annual Total Phosphorus Reductions from Baseline Conditions to Meet Local and Downstream Proposed Site-Specific Criteria
Appendix L – Watershed Implementation Activities [PDF]
Appendix M – CE-QUAL-W2 Reservoir Model [PDF]
Appendix N – Agricultural Phosphorus Targets [PDF]
Appendix O – Trading and Adaptive Management Information [PDF]
Appendix P – Response to Comments [PDF]

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.

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 23 2018