Property owners are responsible for inspecting and maintaining the stormwater systems on their property. For many properties, the City inspects private stormwater systems every 1 to 2 years and requires corrective maintenance, when needed.

Some properties are eligible for the Private Stormwater Facility Self-Certification Program. These property owners inspect and maintain the stormwater system(s) on the property. Eligible property owners will receive a letter from the City providing information on how they can self-certify.

To participate in the program, eligible properties need to review the King County Maintenance Requirements and complete the Self-Certification Checklist. Completed checklists can be sent to Brett Massa (BMassa@ShorelineWA.gov). To remain eligible, properties must successfully self-certify when requested to by the City.

Helpful Resources:

For questions on maintenance of your stormwater system, contact Brett Massa.  

Technical assistance for stormwater system maintenance is available for small businesses through the Business Pollution Prevention Program. Contact the Surface Water Utility at (206) 801-2453 or SGrozev@ShorelineWA.gov to schedule a free site visit. The Business Pollution Prevention Program is funded by Department of Ecology’s Pollution Prevention Assistance program.