Knowledge Base

How do I find out about the quality of drinking water in Redmond?

Redmond is part of the Cascade Water Alliance (CWA) and buys 60% of its supply from the Seattle Tolt River supply through the?CWA. The?rest of our drinking water supply comes from our five municipal supply wells that serve the areas of town east of the Sammamish River.

Please visit https://www.redmond.gov/233/DrinkingWater to view the City's Water Quality Report as well as find other information regarding water system operations, groundwater and wellhead protection, wastewater and sewer, and frequently asked questions.

Updated 7/18/2025 11:40 AM
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