Water Quality Annual Report
Seattle water: less than a penny per gallon delivered to your tap.
Seattle Public Utilities (SPU) provides some of the highest quality drinking water in the nation because it comes from pristine, protected mountain sources: the Cedar River and South Fork Tolt River watersheds.
Each year, SPU provides customers with information about the quality of their drinking water, as required by the federal Safe Drinking Water Act (SDWA).
2011 Water Quality Annual Report (pdf)
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SPU protects the water supply by operating two state-of-the-art treatment facilities and a comprehensive water quality laboratory.
The city is covering its storage reservoirs to ensure the safety of the water supply – with the added benefit of providing park space.
Seattle has some of the best tasting water in the nation and it’s a bargain – less than a penny per gallon delivered to your tap.
Related links
Water Quality – maintaining safety and taste
Water Quality & Treatment – treating and testing the supply
Water Quality Planning and Engineering – managing drinking water projects
Water Quality Analyses – testing to ensure safety
Glossary of Drinking Water Terms – explaining the lingo
Archived Water Quality Reports
The following reports are in PDF format.