Water Quality photo identifier

Water Quality Program

photo of Ecology employee working with dairy farm workers

Concentrated Animal Feeding Operation General Permit

About the permit

The Concentrated Animal Feeding Operation (CAFO) General Permit conditionally authorizes discharges to waters of the state from operations that confine and feed animals such as dairy and beef cows, poultry, horses, and pigs in concentrated areas. Those covered by the permit are required to manage the manure, litter, and process wastewater generated by the operation to protect water quality.

Updating the permit

Washington’s CAFO permit expired in 2011. We have been meeting with producers, environmental groups, agencies, legislators and tribes to solicit their concerns and input. The draft permit is a result of that engagement. Get involved >


small photo of public involvement workshopWe're actively engaging stakeholders and the public to develop a permit that helps keep our water clean and keep jobs in Washington
Public comment period closed August 31



small photo of kinsman cowsGet documents for the current expired permit



small closeup image of keyboardGet answers to frequently asked questions about the draft CAFO permits and CAFOs



small photo of building full of chickensLearn about our historical CAFO permit development work

Contact us

Sign up for email updates on the CAFO permit listserv

Interpretación está disponible entre inglés y español (y otros idiomas). Para información en español, favor de contactar a:
Jon Jennings
Teléfono: (360) 407-6283
E-mail: jonathan.jennings@ecy.wa.gov