EPA's Region 6 Office
Serving: Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations
Water Quality Standards Revisions:
No information at this time.
Treatment in a manner similar to a state (TAS) for administering a
Water Quality Standards program:
NEW Applications Currently Under EPA Review
- Pueblo of Santa Ana
The public comment period is closed. Please contact Region 6 for more information.
Applications Approved By EPA
- Pawnee Nation
- Pueblo of Taos