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Water Quality Standards
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State, Tribal & Territorial Standards

Below are links to EPA approved Water Quality Standards according to jurisdiction. State standards are listed in the table below and tribal and territorial standards are listed on separate web pages. For more information please contact your Regional Coordinator.

State
EPA Approved Standards
State Web sites 4 exit EPA
 
Text1
Table2
Map3
 
Alabama     DEM Water Division
Alaska     Div. Air & Water Quality
Arizona ADEQ Water Division
Arkansas     ADEQ Water Division
California     WQS Inventory Database
Colorado Water Quality Control Div
Connecticut Bureau of Water Mgmnt.
Delaware DNREC Online
Dist. of Columbia DC Dept. of Health
Florida FL Water Resources
Georgia     Env. Protection Div.
Hawaii     DOH Clean Water Branch
Idaho DEQ-Water Quality
Illinois Bureau of Water
Indiana     IDEM- Water
Iowa Water Quality Bureau
Kansas     Bureau of Water
Kentucky   Div. of Water
Louisiana     DEQ
Maine     Bureau of Land & Water Quality
Maryland     State Standards Page
Massachusetts     DEP
Michigan     DEQ-Water
Minnesota     Pollution Control Agency
Mississippi Water Resources
Missouri Water Poll. Control Program
Montana   DEQ Water Quality
Nebraska Nebraska DEQ
Nevada     Standards Branch
New Hampshire     Watershed Mgmnt Bureau
New Jersey     Division of Water Quality
New Mexico Surface Water Quality
New York     Division of Water
North Carolina     Division of Water Quality
North Dakota Division of Water Quality
Ohio     Division of Surface Water
Oklahoma   Water Quality Division
Oregon     Water Quality
Pennsylvania     Water Quality Page
Rhode Island   Water Quality
South Carolina Bureau of Water
South Dakota Surface Water Quality
Tennessee Div. of Water Pollution Control
Texas   Surface Water Quality
Utah   Division of Water Quality
Vermont     Water Quality Division
Virginia     Water Programs
Washington     Water Quality Program
West Virginia Division of Water Resources
Wisconsin     Division of Water
Wyoming     Water Quality Division

Text - These links take you to the actual water quality standards applicable to waters of the U.S. They contain text of documents the state, tribe, or territory have adopted to manage their WQS Program, and which have been approved by EPA or were effective prior to May 30, 2000, for Clean Water Act purposes. Some of these documents are more recent than May 2000. Any federally promulgated standards that apply to that state, tribe, or territory are included as well. The entries in the Text column are from the WQS Repository (WQSDR).

Table - These links take you to tables of waterbody names and designated uses extracted from the text documents in the WQS Repository (WQSDR) for the state, tribe, or territory indicated. The entries in the Table column are from the Reports portion of the WQS Database (WQSDB).

Map - These links take you to maps of waterbodies and designated uses for the state, tribe, or territory indicated. The entries in the Map column are from the Mapping portion of the WQS Database (WQSDB). Clicking on a waterbody on a selected map will also link you to its Table information. If you are not familiar with Enviromapper for Water, review its help guide.

Note: If there is no link in the EPA Approved portion of this page for the information in which you are interested, it is because the WQSDB is still under development (see State Water Sites below).

State Water Sites - We have provided links to state, tribe, and territory sites where you may find additional information. These sites do not necessarily show information approved by EPA for use in administering the federal Clean Water Act.

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