Thurston County facilities are open to the public with safety measures to slow the spread of COVID-19 and protect public and employee health. Learn more here.

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
360-867-2073
Community Programs
360-239-4490
Drainage manual
360-867-2073
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