Tualatin Valley Water District

Washington County, OR
OR4100665
People Served
217K
Water Source
Surface Water
Counties
Washington County
Data from
2023
More in Oregon →

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:0.300 ppb
    Limit:10.000 ppb

    Barium

    Avg:0.006 ppm
    Limit:2.000 ppm

    Coliform

    Avg:0.008 positive samples
    Limit:-

    Copper

    Avg:0.028 ppm
    Limit:1.300 ppm

    Cryptosporidium

    Avg:0.200 organisms/l
    Limit:-

    Fluoride

    Avg:0.240 ppm
    Limit:4.000 ppm
    Show More