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Water: Module 1

Basic Course: Key Concepts (Module 1.g)

Water Quality Standards: State/Tribal Uses

Module 1. WQS Program Overview

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Water quality standards serve as a foundation for State/Tribal water quality programs. For example, States/Tribes rely on water quality standards when:

  • Preparing reports on the water-quality conditions of a jurisdiction's water bodies.
  • Providing a target for calculating Total Maximum Daily Loads (TMDLs) for discharges.
  • Developing National Pollutant Discharge Elimination System (NPDES) permit limits.

Video Clip View a 2-minute video clip from the classroom session about EPA and States/Tribes working together on water quality.

Video (9MB)


Illustration. View a flow diagram of the water quality-based approach to pollution control. Proceed to the Learn More Topic. » (Note: This link launches a pop-up window.)

For informational purposes only–Not official statements of EPA policy.

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