Ecology has jurisdiction and operates within Washington State...
Ecology has jurisdiction within Washington State but occasionally provides services out-of-state related to surface water incidents or natural disasters. Ecology works with tribes as well as state and local governments. Ecology also collaborates with neighboring states on cross-state issues and recently, internationally, on climate change issues through the Western Climate Initiative.
The U.S. Environmental Protection Agency (EPA) has jurisdiction over environmental issues that are cross-border internationally.