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Water Quality Standards are the foundation of the water quality-based pollution control program mandated by the Clean Water Act. Water Quality Standards define the goals for a waterbody by designating its uses, setting criteria to protect those uses, and establishing provisions to protect waterbodies from pollutants.
Drinking Water Standards are found elsewhere on our Web site.
Where You Live
Regional and state specific information.
Basic Information
The importance of Water Quality Standards and how they fit into overall water quality protection.
Laws & Regulations
Collection of legislative and federal requirements.
Policy & Guidance
Library of documents, notices, and memoranda designed to help states, tribes, & territories comply with federal regulations addressing water quality standards.
State, Tribal & Territorial Standards
A repository of the current standards for all waters of the U.S.
Training, Meetings & Outreach Materials
We offer courses, conduct public meetings, and provide resources to help you understand the basics and new developments.
Partnership with Tribes
See how to establish standards for federally recognized tribes.
Regional Coordinators
Points of contact for specific states and regions.