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

Contact Us

Public Works Stormwater Office

Monday - Friday
8:00 AM - 5:00 PM
(360) 754-4681
email us

Community Planning
& Economic Development
Water Planning Office

Physical Address:
Thurston County Water Planning
929 Lakeridge Dr SW
Building 4, Room 100
Olympia, WA 98502

Mailing Address:
Thurston County Water Planning
2000 Lakeridge Dr SW
Building 4, Room 100
Olympia, WA 98502





Thurston County Public Works
9605 Tilley Rd S
Olympia, WA 98512


Call 811
before you dig!


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Customer service
Billing questions
360-786-5526
Locate a storm drain or other facility type (not to dig)
360-867-2067
Improvement Projects
360-867-2968
Community Programs
360-754-3355
Drainage manual
360-867-2968
Rainfall & Water Level monitoring
360-786-5549
Stormwater Inspections (Private Residential & Commercial)
360-867-2095
Stormwater Management Program
360-754-4106
Subscribe to our email lists
Report a stormwater problem
Dumping or spills
360-867-2099
Neighborhood flooding
360-867-2099
Stormwater Utility Departments
Request a drainage consultation
360-867-2067
Water programs managed by other departments
Drinking Water & Wells - Public Health
360-867-2673
Flood plains, alerts, help for residents
Lakes
360-786-5830
Lakes - Public Works Department
360-786-5576
River info and flooding help (Emergency Management)
360-867-2800
Septic (Public Health)
360-867-2673
Thurston Public Utility District (PUD)
360-357-8783
Water Quality (Public Health)
360-867-2631
Water Safety (Sheriff's office)
360-786-5500