Under the Clean Water Act, a state shall from time-to-time hold public meetings for the purpose of reviewing applicable water quality standards and, as appropriate, modifying and adopting standards. See Chapter 61: Water Quality Standards. This review includes, but is not necessarily limited to:
- Designated Uses:
Any water body segment with a water quality standard that does not include A1, B(WW-1) shall be re-examined to determine if there is any new information available.
New or old criteria for different constituents
Protect existing water quality
Linked below are documents relating to current and past Triennial Reviews for Iowa's water quality standards.
2015-2017 Triennial Review Documents:
2012-2014 Triennial Review Documents:
Triennial Review Technical Advisory Meeting: June 29, 2011
For questions about the Triennial Review, please contact Matthew Dvorak:
Iowa Department of Natural Resources
502 East 9th Street
Des Moines, IA 50319-0034