Authority to Administer Standards Program
This tribe was granted treatment in a manner similar to a state (TAS) on August 11, 2006.
Tribe Standards in Effect for CWA Purposes
The tribe’s initial water quality standards were approved on March 21, 2013. The Northern Cheyenne Tribe adopted these standards to protect public health and welfare, enhance the quality of water and serve the purposes of the Federal Clean Water Act.
- [See Surface Water Quality Standards ]
(Effective March 21, 2013)
Federally Proposed or Promulgated Standards
At this time, there are no federally proposed or promulgated standards applicable to this tribe.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Surface Water Quality Standards (PDF)(126 pp, 5 MB)