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Public Works Frequently Asked Questions
Water | Sewer | Stormwater | Transportation

Sewer
Why does it smell like sewage in my home or business?

The most common cause for sewer odors in a home or business is a dry P-Trap at a floor drain, sink, shower, or bath that is not often used. The occupant should periodically check these drains, and pour water into them as a precaution. Water in the P-Trap is the barrier between your home and the sewer system. Other causes could be a cracked or broken sanitary line in the building.

My toilets and sinks are backing up.   Whose responsibility is it to fix this problem?

Generally, sewer backups in a building are caused by a blockage or obstruction in the side sewer. Obstructions may be caused by several things such as grease poured down the drain, inappropriate items flushed down a toilet, too much vegetable waste through garbage disposals, etc. Whenever possible, pour grease from cooking into a jar, can, or wastebasket and avoid putting food scraps down your disposal. More severe cases such as tree roots or an offset or collapsed sewer pipe may also be the cause.

Who is responsible for maintaining the side sewer?

A side sewer is privately owned. The owner or tenant of a building is responsible for maintaining the side sewer from the building to the connection at the Public Sewer.

Where is Redmond's sewer treatment plant?

The City of Redmond does not have a Sewer Treatment Facility. Sewage from Redmond, as it does from the majority of the Cities in the greater Seattle area, flows to either the West Point or Renton Sewer Treatment Plants, which are operated by King County/Metro.