Water Improvement Plans

When the DNR completes a draft version of a Water Quality Improvement Plan, the public will have an opportunity to review the draft document and make comments. The DNR will respond to all comments received during the public comment period and include the comments and responses in the Water Quality Improvement Plan. The public can also attend a public meeting, held near the middle of the public comment period, to discuss the Water Quality Improvement Plan with the DNR and partner groups involved in its development.  After the public comment period ends, the DNR will package up the document to submit to the Environmental Protection Agency (EPA) for their approval.  Only after the EPA approves the plan is it considered a Final Water Quality Improvement Plan.

Public Meetings:

ATTENTION: In response to novel coronavirus and COVID-19, Departmental policy on employee travel and public meetings has been recently updated. In the interest of protecting the health of our employees and citizens that we serve, ALL public meetings involving TMDLs will be REPLACED by video presentations accompanied by public comment periods until further notice.

April 22, 2021: There are no open public comment periods at this time. Thank you for your comments.

Please submit all public comments on the TMDL to: 

Jeff.Berckes@dnr.iowa.gov (preferred)


Jeff Berckes c/o Iowa DNR
Wallace State Office Building
502 E 9th St.
Des Moines, IA 50319

Draft TMDLs awaiting EPA review and approval:

Big Hollow Lake TMDL

Upper Chariton River TMDL

Final Water Quality Improvement Plans