Thurston County facilities are now open to the public with restrictions, including maintaining physical distancing of at least six feet at all times and, per the Washington State Secretary of Health’s face covering order wearing a cloth face covering or mask. If you come to county facilities, please be prepared for potentially long wait times or lines due to distancing guidelines. We continue to encourage residents to access county services online, by phone, by email, or through the use of drop boxes located outside of county buildings.
The availability of remote services vary by office and department.

Click here for office and department contact information
Click here for information on COVID-19

Our Water

Learn how we manage our local waters

We lead projects to measure, monitor and improve water quality in the many streams and rivers that drain into Puget Sound. Because water flows across geographical and political boundaries, water areas are identified not by county or city, but by a common point to which they drain. These water areas are called watersheds and basins.  Watershed and basin studies help Thurston County government identify specific projects that can reduce the amount of pollution in water, and lessen the effects of polluted runoff on area drinking water aquifers, and on frog, fish and shellfish habitat. The County's pollution reduction activities are mandated and monitored by the U.S. Environmental Protection Agency and by the Washington State Legislature.  Find details on the Stormwater Management Program page.

Basin Plans   |   Watershed Characterizations