Natural Resources

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 and the Ag Water Quality Area Plan and Ag Water Quality Regulations, please use our interactive map. The map also provides information on where to find technical and financial assistance in your area.

Agricultural water quality management areas map​

​​Note: 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 al warranties, whether express or implied, including any implied warranties of merchantability, or fitness for a particular purpose.  

Tualatin River Watershed Agricultural Water Quality Management Area Rulemaking

Public comment period opens Oct. 1 and it ends at 5 p.m. Nov. 15. 

Tualatin River Watershed Agricultural Water Quality Management Area Plan draft (2014)

2014 draft of Tualatin River Watershed Agricultural Water Quality Management Area Plan. Document

Tualatin River Watershed Agricultural Water Quality Management Area proposed OARs

Tualatin River Watershed Agricultural Water Quality Management Area proposed new OARs in 2014. Document

Tualatin River Watershed Agricultural Water Quality Management Area rule change notice (2014)

Notice of proposed rulemaking for the Tualatin River Watershed Agricultural Water Quality Management Area. Document

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Program resources

Agricultural Water Quality Management Program Quick Guide

An overview of the Agricultural Water Quality Management Program Document

DEQ TMDLs

Link to DEQ TMDLs Website

OAR 603 Division 90: Agricultural Water Quality Program

Rules relating to the Agricultural Water Quality Program Law or rule

OAR 603 Division 95: Agricultural Water Quality Program

Rules relating to Agricultural Water Quality Management Areas Law or rule

ORS 568 Water Quality Management

Statutes relating to Agricultural Water Quality Management Law or rule

Strategic Implementation Areas, four-page document (2014)

Details about the history of the program, strategic implementation, what's next, and what property owners can do to improve water quality. Document

Strategic Implementation Areas, two-page document (2014)

Details about strategic implementation, what's next, and what property owners can do to improve water quality. Document

The Oregon Agricultural Water Quality Report (September 2012)

The Oregon Agricultural Water Quality Report Document

Water Quality Focus Areas, four-page document (2014)

Details about history of the program, partnerships, and implementation of Focus Areas. Document

Water Quality Focus Areas, two-page document (2014)

Details about the Focus Area process and the advantages of Focus Areas. Document

Resources for landowners

Achieving Healthy Streamsides

Document

Affordable Streamside Improvements

Document

Animal Carcass Disposal

Document

Canals and Ditches

Document

Christmas Tree Farmers

Document

Cut-off Flood Irrigation

Document

Developing Your Oregon Vineyard

Document

Field Borders

Document

Grassed Waterways

Document

Horse Health

Document

PAM and Erosion Prevention

Document

Riparian Grazing: Brogan Canyon Case Study

Document

Sediment Basins to Control Irrigation Induced Erosion

Document

Streamside Vegetation: Good for People, Plants and Animals

Document

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More info from ODA

Pesticides and water quality

Contact​

John Byers
Program Manager
Phone: 503-986-4718
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Ryan Beyer
Water Quality Specialist, North Coast & North Willamette
Phone: 503-986-4696
Theresa DeBardelaben
Water Quality Specialist, Central & Southeast Oregon
Phone: 541-318-9088
Fax: 541-388-8283
Kevin Fenn
Water Quality Program Compliance Leader
Phone: 503-986-6486
Ellen Hammond
Water Quality Specialist, Central & Southeast Oregon
Phone: 541-617-0017
Fax: 541-389-1329
Cheryl Hummon
Riparian Specialist
Phone: 503-986-4791
Sheila Marcoe
Water Quality Monitoring Specialist
Phone: 503-986-4707
Margaret Matter
Agricultural Water Resource Specialist
Phone: 503-986-4561
Renita McNaughtan
Administrative Specialist
Phone: 503-986-4779
Jo Morgan
Water Quality Specialist, Mid-Coast & South Willamette
Phone: 503-986-4712
Beth Pietrzak
Water Quality Specialist, Southwest Oregon
Phone: 541-414-8797
Mike Powers
Water Quality Lead Policy Specialist
Phone: 503-986-4761
Heather Rickenbach
Water Quality Program Analyst
Phone: 503-986-4775
Tom Straughan
Water Quality Specialist, Umatilla & Wallowa Region
Phone: 541-278-6721
Fax: 541-278-6721
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