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Water: Module 4

Basic Course: Key Concepts (Module 4)

Introduction: What's Covered in This Module?

Module 4. Antidegradation Requirements

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This module discusses the requirement that water quality standards include a framework and methodology for deciding if, when, and how water quality that exceeds the CWA 101(a) goal can be degraded by regulated activities and when that water quality must be maintained. Answers to the following questions are provided:

  • In what situations can a State or Tribe consider allowing degradation of water quality?
  • What is required when addressing antidegradation questions?
  • How do requirements address different types of uses or waters?
  • What does EPA look for when reviewing a State or Tribe's approach to antidegradation issues?

At the end of the module is a brief quiz intended to touch on some Core Modules regarding a State or Tribe's antidegradation program that are further examined in the classroom session of this module.

This module's main pages and brief quiz at the end take about 15 minutes to complete.

Disclaimer: This online course presentation and any associated links have been prepared by EPA staff for informational purposes only. Their sole purpose is to make available training online from recent Water Quality Standards Academy classroom courses. As such, this online course and any associated links are not binding on EPA or the public and have no legal effect. They do not constitute an EPA statute, regulation or other requirement and do not substitute for such authorities. In addition, the course and any associated links have not been reviewed or endorsed by EPA management. Thus, they are not intended or written as official statements of EPA’s scientific views, policies, guidance, or requirements and cannot be used or cited as evidence of EPA’s position on any matter.

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