The Grande Ronde Basin

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

FLIR Reports Lower Grande Ronde Subbasins Upper Grande Ronde Subbasin Basin Contact Information

Forward Looking Infrared (FLIR) Remote Sensing Survey Reports

• 2000 Remote Sensing Survey of the Grande Ronde River Basin PDF
• Appendix A - Longitudinal Profiles PDF
• Appendix B - Selected Images PDF

Lower Grande Ronde Subbasins

  Includes the Wallowa, Imnaha, and Lower Grande Ronde Subbasins

Approved by the US Environmental Protection Agency (EPA) on September 24, 2010

• TMDL Order Memo PDF
• U.S. Environmental Protection Agency Approval Letter PDF
• Lower Grande Ronde TMDL Fact Sheet: Reducing Water Pollution in the Lower Grande Ronde, Wallowa, and Imnaha Subbasins  PDF



• Executive Summary PDF
• Chapter 1: Overview and Background PDF
• Chapter 2: Stream Temperature TMDL PDF
• Chapter 3: Bacteria TMDL PDF
• Chapter 4: Water Quality Management Plan PDF
• Appendix A: Temperature Analysis PDF
• Appendix B: Abbreviations PDF
• Appendix C: Selected Terms PDF



• Download the entire document: Lower Grande Ronde Total Maximum Daily Load (TMDL) PDF [9.5MB]
  
  
• Response to Public Comment PDF

Upper Grande Ronde Subbasin

TMDL approved by EPA on May 3, 2000

• Total Maximum Daily Load (TMDL) PDF
• Appendix A: Temperature Analysis PDF
• Appendix B: Periphyton Analysis PDF
• Appendix C: Permitted Water Right Withdrawals PDF
• Appendix D: Applicable Water Quality Standards PDF
• Appendix E: ODEQ Point Source Technical Memorandums PDF
• Water Quality Management Plan (WQMP) PDF
   
• Response to Public Comment PDF

Contact Information

• Grande Ronde Basin Coordinator:  Don Butcher e-mail 541-278-4603 Pendleton
   
• DEQ Eastern Region Office information
• Basin Coordinator List PDF

[print version]