Bioassessment and Biocriteria Program Status for Alaska: Streams and Wadeable Rivers
State Program Contact
Water Quality Standards
The link to Alaska's WQS that are in effect for Clean Water Act purposes is provided. These are the WQS approved by EPA.
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
Growth and Propagation of Fish, Shellfish, Other Aquatic Life, and Wildlife.
__X__ No criteria
Use of biocriteria or bioassessment not included in antidegradation policy.
What biological assemblages are used in the bioassessment program?
Benthic macroinvertebrates and periphyton
Are bioassessments used to support 303(d) listings?
How are assemblages used to make impairment decisions?
Other uses of biocriteria or bioassessment within the water quality program:
Non-point source assessments and 305(b) surface water condition assessments
Technical Support Information and Documents:
Alaska currently uses biological information to compliment water chemistry data. Alaska employs a Macroinvertebrate Biological Assessment Index developed by the University of Alaska Environmental and Natural Resources Institute (now the University of Alaska Anchorage - Alaska Center for Conservation Science) in certain cases.
Stressor identification/causal analysis approach: