Agricultural Water Quality

The Oregon Department of Agriculture (ODA) is responsible for developing plans to prevent and control water pollution from agricultural activities and soil erosion on rural lands. ODA is also responsible for ensuring that farmers and ranchers help achieve water quality standards and meet the agricultural pollutant load allocations assigned by the Department of Environmental Quality (DEQ) in their Total Maximum Daily Loads (TMDLs).

Management area map

To determine your management area, please use our interactive map.

This map is for informational purposes only and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. The information and data is subject to change as modifications and updates are completed. All who use or otherwise access such information and data do so at their own risk. Users of this information and data should review or consult the primary data and information sources to ascertain the usability of the information. Any information and data made available here that has been modified for use from the State of Oregon is subject to the following disclaimer: The state of Oregon makes no representations or warranty as to the completeness, accuracy, timeliness, or content of any information and data made available through this site. The state of Oregon expressly disclaims all warranties, whether express or implied, including any implied warranties of merchantability, or fitness for a particular purpose.​​​

​​​Management area documents

Administrative rules, area plans, biennial reviews, DEQ reports and executive summaries are available below by clicking on the management area. 



More info from ODA


John Byers
Program Manager
Phone: 503-986-4718
Water Quality Program Analyst
Phone: 503-986-4775
Ryan Beyer
Compliance Specialist
Phone: 503-986-4696
Theresa DeBardelaben
Water Quality Specialist, North & Central Oregon Region
Phone: 541-318-9088
Fax: 541-388-8283
Tom Demianew
Water Quality Specialist, Umatilla & Wallowa Region
Phone: 541-969-6282
Kevin Fenn
Water Quality Program Compliance Leader
Phone: 503-986-6486
Ellen Hammond
Monitoring and Implementation Lead
Phone: 541-617-0017
Fax: 541-389-1329
Cheryl Hummon
Riparian Specialist
Phone: 503-986-4791
Sheila Marcoe
Natural Resource Policy Specialist
Phone: 503-986-4707
Renita McNaughtan
Administrative Specialist
Phone: 503-986-4779
Jo Morgan
Water Quality Specialist, Mid-Coast & South Willamette Region
Phone: 503-986-4712
Beth Pietrzak
Water Quality Specialist, Southwest Oregon Region
Phone: 541-414-8797
Mike Powers
Water Quality Lead Policy Specialist
Phone: 503-986-4761
Brenda Sanchez
Water Quality Specialist, North Coast & North Willamette Region
Phone: 503-986-5141
Maria Snodgress
Water Quality Specialist, Central & Southeast Oregon Region
Phone: 541-699-2263