Seattle Public Utilities

Ballard Ship Canal Water Quality


The existing 24th Avenue NW pedestrian pier will be replaced.


Ballard is one of the older neighborhoods in Seattle that are served by a combined sewer system. This system was designed in the early 20th Century to carry sewage from buildings as well as stormwater runoff from streets, rooftops, and parking lots in a single pipe to a wastewater treatment plant. The system’s purpose was to keep polluted water and sewage away from people in order to protect public health. During dry weather, polluted water flows to a wastewater treatment plant. When it rains, the pipes can become overloaded. A mixture of stormwater (about 90 percent) and raw sewage may overflow into lakes, streams, and the Puget Sound, which can harm people, fish, wildlife, and the environment.

Meetings & Events

There are no meetings nor events at this time.


Richard Fernandez
(206) 684-0285

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