|
About SPU
>
Management
>
History & Overview
Quick Facts About SPU
We bring world class utility services to our community
Seattle Public Utilities (SPU) provides more than 1.3 million customers in King County with a reliable water supply, as well as essential sewer, drainage, and solid waste services for the City of Seattle.
To deliver these basic services, Seattle Public Utilities relies on a system of pipes, reservoirs, and disposal and recycling stations. Read on for a few quick facts about SPU.
Water
We own and manage:
- • The Cedar River watershed, a 90,546-acre protected watershed that provides almost 70 percent of the area’s drinking water.
- • 177, 928 metered service lines and 18,000 fire hydrants.
- • 2,500 fire protection service lines.
- • 1,670 miles of distribution water mains.
- • 176 miles of water transmission pipelines (average pipe size is 66 inches diameter; largest pipe size is 90 inches diameter).
- • 29 supply and distribution pumping stations with 96 individual pumping units.
- • 16 reservoirs, totaling 489 million gallons of storage.
- • 16 elevated tanks and standpipes, totaling 16 million gallons of storage.
- • 4 dams, including 2 headwork facilities.
|
|
Solid Waste
- • 350,000 combined customer visits to North and South Recycling and Disposal Stations annually.
- • 256,000 tons of garbage are compacted and hauled to the rail yard from the North and South Recycling and Disposal Stations each year.
- • 57,000 tons of yard waste received at the stations annually
- • 24,900 tons of recyclable material reclaimed from waste stream annually.
- • 3,300 tons of wood waste received at the stations each year.
- • More than 6,000 appliances (e.g.: refrigerators, stoves) are collected each year.
- • 56 tons of household hazardous waste diverted for reuse each year.
|
|
Drainage and wastewater
- • 90,000 inlets.
- • 51,000 maintenance holes.
- • 45,396 catch basins.
- • 1,491 miles of combined sewer and sanitary pipelines (average sewer pipe size is 8 inches diameter; largest pipe size is 210 inches diameter).
- • 150 miles of ditches and culverts.
- • 68 pump stations.
- • 450 miles of storm sewer pipelines (average storm sewer pipe size is between 12 inches and 24 inches diameter; largest pipe is 180 inches diameter).
- • 38 combined sewer overflow systems.
|
|
|
|
