Water supply
We manage water resources to benefit all Washingtonians and to protect the natural environment for current and future generations. Our vision is that Washington State's water resources support thriving ecosystems and communities in the face of climate change - water availability is increasingly limited in Washington due to the pressures of warming temperatures on snowpack and declining aquifers.
We’ve updated the Water Resources Strategic Plan. This Strategic Plan represents a new path for the Water Resources Program as we integrate two transformational changes to how we approach our work: a focus on climate change and environmental justice. Read our executive summary.
Water availability
We study and regulate water resources by watershed. Find yours and see water availability.
Water rights
A water right is the legal authorization to use a quantity of water for beneficial uses.
Streamflow restoration
We help protect rivers and streams while providing water for rural areas.
Wells
We provide well information and regulatory guidance for property owners and well drillers.
Dams
The Dam Safety Office (DSO) regulates nearly 1,100 dams in Washington.
Water supply projects in Eastern Washington
Our water supply and enhancement projects are providing water security in Eastern Washington.
Protecting stream flows
An instream flow is a water right for the stream and the resources that depend on it.
Water recovery solutions
As water for new uses becomes harder to find, we look for innovative solutions to meet future needs.