Water System Information

Drinking Water Quality
The Department of Health requires the City to provide all water system customers with a report each year about the quality of the water we provide. To ensure tap water is safe to drink, the Environmental Protection Agency and the Washington State Board of Health regulate the amount of certain contaminants in water provided by public water systems. The U.S. Food and Drug Administration and the Washington State Department of Agriculture regulations establish limits for contaminants in bottled water that must provide the same protection for public health. 


To encourage conservation, Duvall offers water efficiency programs through its partnership with Seattle Public Utilities. Conservation programs seek to reduce indoor and outdoor water use by promoting high efficiency plumbing fixtures, appliances, and irrigation technologies, as well as leak detection and repair. Thanks to continuing community support and participation, these programs have been very successful.

Conservation Resources

Annual Water Quality Reports