The Storm and Surface Water Management Program of the City of Sammamish Public Works Department addresses storm and surface water quality (pollution) and quantity (flood control) in the City.
How to report issues
Report a drainage problem online at My Sammamish.
Report a spill online or call the Spill Hotline:
- Weekdays 8:30 am to 5:00 pm: call (425) 295-0500
- Evenings and weekends: call (425) 295-0700
Stormwater Program and Resources
Below are resources for managing stormwater runoff. Learn best practices you can employ at home and in your business to help keep our waters clean.
Help Keep Stormwater Clean
Learn about every day actions you can take to improve water quality in our local streams, rivers and lakes!
Storm & Surface Water Projects
Check out some of the projects the City is working on to improve water quality in the City.
Green Infrastructure & Low Impact Development (LID)
Learn about Low Impact Development (LID). You’ll discover how green infrastructure can be used to manage stormwater and protect the City's water resources.
View our Business Inspection and Stormwater Pollution Prevention program to help prevent stormwater pollution from businesses and government properties
Stormwater Utility and Inspections
The City's stormwater utility, rates and system development charges.
Stormwater Policies and Regulations
Learn about our City’s compliance with the federal stormwater permit. This regulates all discharge of stormwater and wastewater to the waters of the State.
Water Quality Monitoring
The City monitors water quality in its streams, rivers and other water bodies. Learn about some of these monitoring effects.