About the Program

Biocriteria Links

Legal Authority

Chapter 2 of "Biological Criteria: National Program Guidance for Surface Waters". This chapter covers sections of the Clean Water Act that relate to biological assessments and biocriteria. For instance, Section 303(c)(2)(B) requires States to adopt criteria bases on bioassessments and Section 304(a)(8) directs EPA to develop and publish guidance.

Key Objectives

Lays out the key objectives for developing and implementing bioassessments and biocriteria for use in state and tribal water quality standards programs.

Key Activities

Key activities necessary to meet the biocriteria objectives outlined in the Water Quality Criteria and Standards Plan.

Biocriteria Contacts

E-mail and phone numbers for Headquarters EPA contacts involved in the development, testing, and implementation of biocriteria as an integral component of water resource management.

EPA Bioassessment and Biocriteria Technical Assistance and Guidance Documents

On-line links to biocriteria documents published by the EPA, USGS, States, and other organizations.

Biological Indicators