Impaired Waters and TMDLs in Region 8

EPA Region 8 includes the states of Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming, as well as 28 federally recognized tribal nations.

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Related Region 8 Programs

• Water Quality Standards
• Nonpoint Source
• NPDES Permits

State Programs in Region 8

Colorado

• Colorado Listing and Assessment
• Colorado TMDLs

Montana

• Montana Listing, Assessment and TMDLs
• Montana Clean Water Act Information Center

North Dakota

• North Dakota Listing and Assessment
• North Dakota TMDLs

South Dakota

• South Dakota Listing and Assessment
• South Dakota TMDLs

Utah

• Utah Listing and Assessment
• Utah TMDLs

Wyoming

• Wyoming Listing and Assessment
• Wyoming TMDLs

Tribes

• EPA Tribal Assistance Branch Contacts