An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Bioassessment and Biocriteria Program Status for Fort Belknap Indian Community (FBIC) Aaniiih & Nakoda Tribes: Streams and Wadeable Rivers

State Program Contact

Fort Belknap Indian CommunityExit

Water Quality Standards

WQS Information
The link to Fort Belknap Indian Community Aaniiih & Nakoda Tribes WQS that are in effect for Clean Water Act purposes are not currently available. Please contact their WQ Program for a copy and additional information.

You may need a PDF reader to view some of the files on this page. Refer to EPA’s about PDF page to learn more.

Designated Aquatic Life Uses
  • Aquatic Life Fishery, Cold-water
  • Aquatic Life Fishery, Warm-water
  • Aquatic Life, Non-fishery Cold-water
  • Aquatic Life, Non-fishery Warm-water

Biological Criteria
_____ Narrative
_____ Numeric
__X__ No criteria

At this time the FBIC does not have specific, numeric biological standards or criteria, however, it is the intent of the Tribes to develop such criteria or standards as resources allow.

Antidegradation Policy
Biocriteria or bioassessment not used in antidegradation policy.

Biological Assessment

What biological assemblages are used in the bioassessment program?
Benthic macroinvertebrates, fish, and amphibians

Are bioassessments used to support 303(d) listings?

How are assemblages used to make impairment decisions?
Not applicable.

Other uses of biocriteria or bioassessment within  the water quality program:
In the TWQS Draft, refining ALU, TMDL development and assessment, antidegradation, non-point source assessments, BMP evaluation, 303(d) water quality standards assessment, 305(b) surface water condition assessment, and restoration goals may be incorporated.

Technical Support Information and Documents:

Reference condition:
“Reference conditions” describe the characteristics of water body segments least impaired by human activities. As such, reference conditions can be used to describe attainable biological or habitat conditions for water body segments with common watershed/catchment characteristics within defined geographical regions.

Technical reference material:
TWQS Document

Not applicable.

Stressor identification/causal analysis approach:
Not applicable.

Top of Page