Water-Quality Standards

Water-Quality Standards

Learn about water-quality criteria, including total maximum daily load requirements.


Under the Clean Water Act, states have the responsibility to set water-quality standards for every body of water in the state. In this lesson, you’ll learn about the key components of setting water-quality standards, such as assigning designated uses of water, determining the water-quality criteria needed to protect the designated uses, creating anti-degradation policies, and establishing total maximum daily loads.

Designated Uses

Sometimes the law can be straightforward, and luckily, this...