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Sammamish Town Center (not licensed)

Storm Drain Volunteer Programs

Public Works

Engineering Technician

Lisa Werre
(425) 295 0573
Adopt-a-storm-drain. Protect local waterways. Sign up! Clipart icon of a drain with water going over it.

Storm Drain Marking Program

Marking storm drains is one way the city informs residents of the connection between their neighborhood and nearby waterways. Markers displayed next to storm drains carry the message "Only Rain Down the Drain." This cautions residents not to dispose of things like gardening chemicals, grease, soap, oils, etc., into the storm drains. The program raises awareness of the connection between stormwater runoff and their yards, roads, and nearby waterways.  

Volunteering to mark storm drains is a great activity for any volunteer organization. Service organizations, schools, scouts, churches, block clubs can volunteer to help this effort.

The City of Sammamish is promoting the storm drain marking program throughout the city. For more information, email Lisa Werre at or contact her at (425) 295-0573.

Adopt a storm drain to protect local waterways!

Adopt a Storm Drain

Clean leaves and debris from storm drains to prevent localized flooding. City crews work to clear storm drains, but with 12,000 drains in Sammamish, we could use your help! With your assistance, we can keep streets safe and clear and reduce property damage caused by flooding.

Keep leaves and debris out of storm drains

  • Check storm drain grates and the surrounding area frequently to ensure they are free of leaves and debris.
  • Rake leaves away from storm drains and gutters near your house or business. Dispose of leaves in your yard waste container or compost bin.
  • Do not remove the grate from the storm drain opening. This does not unclog the system and creates a hazard for everyone.
  • Do not rake or blow leaves from your property into the streets. Our street sweeper cannot pick up large piles of leaves. It is also a violation of the Sammamish Municipal Code and could result in a warning or even a fine.