Photo of a utility crew cleaning a sewer pipe

Our drains carry stormwater off of Seattle's streets, and our sewer mains carry your home or business' wastewater for treatment. We work to prevent sewer overflows, quickly respond to flooding, use Green Stormwater Infrastructure to better handle Seattle's rain, and plan future infrastructure. Find out how your side sewer connects to our sewer mains.

Your sewer bills are based on actual water usage during the winter period (November through April). For stormwater management (drainage), the City of Seattle charges property owners a fee based on each property's estimated impact on the drainage system.

Sewer Rates | Drainage Rates

Complex infrastructure systems are working underneath our city. Learn more about the history of Seattle's sewer and drainage systems, the systems at work in your neighborhood, and how we're planning for the future with this interactive StoryMap.

Public Utilities

Andrew Lee, General Manager and CEO
Address: 700 5th Avenue, Suite 4900, Seattle, WA, 98104
Mailing Address: PO Box 34018, Seattle, WA, 98124-5177
Phone: (206) 684-3000

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Seattle Public Utilities (SPU) is comprised of three major direct-service providing utilities: the Water Utility, the Drainage and Wastewater Utility, and the Solid Waste Utility.