Water monitoring & research
We monitor water conditions and habitats in rivers, lakes, groundwater, Puget Sound, and the ocean. We evaluate and track trends in water levels, health of watersheds, water pollution, ocean acidification, aquatic invasive plants, harmful algal blooms, and toxic chemicals in freshwater fish. State and local government entities and research institutions use our data to protect and conserve Washington's environment.
Swimming safety
We monitor fecal bacteria at popular marine swimming beaches from Memorial Day to Labor Day.
Freshwater monitoring
We study the health of watersheds, rivers, streams, and lakes in Washington.