• Water Quality and Safety FAQs

    Cedar River Watershed, a source of Bellevue's water

    Bellevue’s water is purchased from Seattle. The water comes from the Cedar River and Tolt River watersheds in the Cascade Mountains – protected areas that are closed to human activity and development. This means our water has fewer contaminants and is treated with fewer chemicals.

    The following are ways that Bellevue keeps water safe for its residents:

    • Monitor drinking water quality throughout the city to make sure it meets or exceeds state and federal water quality standards.
    • Manage the Cross Connection Control/Backflow Prevention Program to prevent contaminants from entering the city’s water system.
    • Establish procedures used during water main breaks to protect drinking water quality.
    • Conduct water main flushing, sampling and results tracking to ensure freshness.
    • Inspect water storage tanks to ensure they have secure and sanitary conditions as well as oversee storage tank cleaning to remove any accumulated sediments.
    • Assist customers with water quality issues in their homes.
    • Keep abreast of changing state and federal regulations.
    • Maintain strong relationships with Washington State’s Department of Health – Office of Drinking Water.
    • Train for water emergencies with other regional water providers.

    Related Links:

    Drinking Water Quality Report

    EPA Coronavirus and Drinking Water and Wastewater Questions