Snake River/Hells Canyon

Positive actions are being undertaken and accomplished to improve water quality in the Snake River. We appreciate your interest and involvement. Together we can work towards a better river environment for everyone.

TMDL for Temperature, Total Dissolved Gas, DDT, DDD, DDE and Dieldrin

  TMDL approved by the U.S. Environmental Protection Agency (EPA) on March 1, 2004

• TMDL Order Memorandum- July 29, 2003 PDF
   
• Total Maximum Daily Load (TMDL) and Water Quality Management Plan (WQMP) PDF 17.1mb
• Technical Appendices A through J PDF 5.2mb
   
• Response to Public Comment PDF

Revised TMDL for Phosphorus, Sediment and Dissolved Oxygen

  Revised TMDL approved by the U.S. Environmental Protection Agency (EPA) on September 9, 2004

• TMDL Order Memorandum Addendum - June 1, 2004 PDF
• Supporting Documentation for Revised Tables PDF
   
• Revised Total Maximum Daily Load (TMDL) and Water Quality Management Plan (WQMP) PDF 13.1mb
   
• Response to Public Comment PDF

Contact Information

• Snake River/Hells Canyon Coordinator:  Eric Nigg  e-mail  (541) 633-2035 Bend
   
• DEQ Northwest Region Office Information
• Basin Coordinator List PDF