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  2. Impaired Waters and TMDLs

Protection Frequently Asked Questions

Frequently Asked Questions (FAQs) developed by EPA’s Section 303(d) program staff to help clarify key concepts underlying the Clean Water Act (CWA) Section 303(d) Vision’s protection goal for states, territories and tribes.

  • Protection Frequently Asked Questions (pdf) (230.41 KB)
    These Frequently Asked Questions (FAQs) were developed by EPA’s Section 303(d) program staff to help clarify key concepts underlying the CWA Section 303(d) Vision’s Protection Goal for states, territories and Tribes.

Impaired Waters and TMDLs

  • Program Vision
  • Impaired Waters and TMDLs throughout the U.S
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Contact Us About Impaired Waters and TMDLs
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 29, 2025
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