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Total Maximum Daily Load (TMDL) Program
Topic Related Links
Regional Water Links
TMDLs specify the maximum amount of a pollutant a waterbody can assimilate
and still meet a State’s water quality standards. The TMDL process links
the development and implementation of control actions to the attainment and
maintenance of water quality standards and designated uses.
More
on TMDLs >
(U.S. EPA Headquarters)
States are responsible for listing waters that are impaired and submitting
the lists to U.S. Environmental Protection Agency for review and approval.
Then, States must develop an analysis of the sources of pollutants causing
the impairments, and the reductions of each source to address the impairments.
More on State TMDL Programs >
Public Notices and Announcements
September 15, 2007 Revised Report on State Stormwater Permits and TMDLs now available!
State practices for water bodies impaired due to storm water are documented in the recently-completed report entitled "Total Maximum Daily Loads and National Pollutant Discharge Elimination System Storm Water Permits for Impaired Water Bodies: A Summary of State Practices."
- Total Maximum Daily Loads and National Pollutant Discharge Elimination System Storm Water Permits for Impaired Water Bodies: A Summary of State Practices (PDF) (64pp, 587Kb, About PDF)
Final TMDLs
2007 Minnesota Statewide Mercury TMDL
On March 27, 2007, U.S.EPA Region 5 approved two regional mercury TMDLs submitted by the State of Minnesota for 511water bodies impaired by mercury.
March 27, 2007 Approval Letter from U.S.EPA Region 5 to Minnesota (PDF) (1pp, 77Kb, About PDF)
Decision Document Approving Minnesota Statewide Mercury TMDL (PDF) (23pp, 116Kb, About PDF)
More Information On TMDL Programs in Region 5 States
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Illinois
Indiana
Michigan
- Michigan Department of Environmental Quality (MDEQ) TMDL Website
- Water Quality and Pollution Control in Michigan 2008 Sections 303(d), 305(b), and 314 Integrated Report
Minnesota
- Minnesota Pollution Control Agency (MPCA) Approved TMDLs and Implementation Plans
- MPCA Impaired Waters and TMDLs
Ohio
Wisconsin
- Wisconsin Department of Natural Resources (WDNR) List of Approved TMDLs
- Identifying and Restoring Wisconsin's Impaired Waters