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 www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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 Nevada: Streams and Wadeable Rivers

State Program Contact

Nevada Division of Environmental Protection Exit


Water Quality Standards

WQS Information
The link to Nevada's WQS that are in effect for Clean Water Act purposes is provided. These are the WQS approved by EPA.
The state of Nevada provided information and links to sections of their administrative code on designated aquatic life use, biological criteria, antidegradation as well as technical support documents and information on its bioassessment and biocriteria programs. These are included for your convenience and may or may not reflect the most recently EPA approved WQS. The following links exit the site Exit

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

Biological Criteria
_____ Narrative
_____ Numeric
__X__ No criteria

Antidegradation Policy
Use of biocriteria or bioassessments not included in antidegradation policy


Biological Assessment

What biological assemblages are used in the bioassessment program?
Benthic macroinvertebrates and periphyton

Are bioassessments used to support 303(d) listings?
No

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

Other uses of biocriteria or bioassessment within the water quality program:
Not applicable.


Technical Support Information and Documents:

Reference condition:
Not applicable.

Biocriteria:
Not applicable.

Stressor identification/causal analysis approach:
Not applicable.

Top of Page