California Water Service-S San Francisco

San Mateo County, CA
CA4110009
People Served
63.4K
Water Source
Surface Water
Counties
San Mateo 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.

    Alkalinity, Total

    Avg:156.000 ppm
    Limit:-

    Arsenic

    Avg:1.050 ppb
    Limit:10.000 ppb

    Boron

    Avg:0.020 ppm
    Limit:-

    Calcium

    Avg:44.500 ppm
    Limit:-

    Chlorate

    Avg:70.500 ppb
    Limit:210.000 ppb

    Chloride

    Avg:57.350 ppm
    Limit:-
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    Contaminants tested