Find out more at King County Public Health. The City of Seattle has issued requirements for construction projects seeking inspections. This includes the pipe system up to, but not including, the connection to the public main. A side sewer includes all the piping located outside the building footprint. The entire side sewer is owned and maintained by the property owner. All the piping inside your building is considered plumbing and is regulated, permitted, and inspected by Seattle-King County Public Health.
SDCI Closures, Service Updates, and Inspection Requirements
Maintenance and Repair of Side Sewers
Click here to open a PDF version of this tip sheet. What is a private side sewer? Who is responsible for the maintenance of the side sewers?
Sewer Main Analysis
DPW Order Tow-Away User Guide. Tow-Away FAQ.
The side sewer is the sewer pipe that connects a building to the sewer main located in the street. Property owners are responsible for maintenance and repair of side sewers. The City is responsible for sewer mains if they are located in public rights of way, like streets, or a utility easement dedicated to the City. This information is also found in the Issaquah Municipal Code This analysis identifies which ones are near the end of their service life, are prone to infiltration, root clogs, sudden failures or cannot provide the required flow capacity. The City also conducts television video inspections of the sewer system. City ratepayers pay for the ongoing replacement and maintenance of existing lines in the sewer system. In some cases, the City may extend a sewer into a neighborhood, and in other cases a developer build may extend a segment.