Seattle Public Utilities

King County, WA
WA5377050
People Served
955.5K
Water Source
Surface Water
Counties
King County
Data from
2023
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Contaminants Exceeding Limits

No contaminants have exceeded the guideline limits in the last year.

    Other Contaminants Detected

    The following contaminants have been detected, but not exceeded the guideline limits in the last year.

    Arsenic

    Avg:0.350 ppb
    Limit:10.000 ppb

    Barium

    Avg:0.001 ppm
    Limit:2.000 ppm

    Bromate

    Avg:0.450 ppb
    Limit:10.000 ppb

    Coliform

    Avg:0.090 positive samples
    Limit:-

    Combined Chlorine

    Avg:1.000 ppm
    Limit:-

    Copper

    Avg:0.120 ppm
    Limit:1.300 ppm
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