The Washington State Department of Ecology’s (Ecology) Water Quality Program awards grants and loans on a competitive basis for high-priority water quality projects throughout Washington State. Ecology administers seven funding programs that make up the Water Quality Combined Funding Program (WQC) through an integrated annual funding cycle. Eligible applicants can prepare and submit applications for many types of water quality projects using a single application. Ecology reviews and ranks the projects and then assigns funding based on project rank and available funding.
Eligible project categories for grant and/or loan funding include:
- Wastewater facility
- Onsite sewage system
- Stormwater facility
- Stormwater activity
- Nonpoint source activity

