Tacoma Water Division City Of

Pierce County, WA
WA5386800
People Served
319K
Water Source
Surface Water
Counties
Pierce County
Data from
2023
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Contaminants Exceeding Limits

The following contaminants have exceeded the guideline limits at least once in the last year.

  • MA

    Manganese

    Manganese is a metal found in rocks and soil. It enters water through erosion and industrial processes. While essential in small amounts, excess can harm the nervous system.

    180.000 ppb
    EPA limit 50.000 ppb

Other Contaminants Detected

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

Arsenic

Avg:3.567 ppb
Limit:10.000 ppb

Bromodichloromethane

Avg:0.267 ppb
Limit:80.000 ppb

Chloride

Avg:6.300 ppm
Limit:-

Chloroform

Avg:0.733 ppb
Limit:70.000 ppb

Combined Radium (-226 & -228)

Avg:0.200 pci/l
Limit:5.000 pci/l

Copper

Avg:0.230 ppm
Limit:1.300 ppm
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Contaminants tested