Shoal & Stem

Prairie Ridge, WA tap water

Supplied mostly by City of Tacoma Water Division, plus 1 other utility. Here's what the water means for your fish.

Disinfectant

Chlorine

Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.

Safety for fish and shrimp

Nitrite (NO₂)

Not detected (Low)

Not detected in testing, so any nitrite in your tank comes from the tank itself.

From EPA monitoring data (2012–2019).

Nitrate (NO₃)

12–44 ppm (Worth knowing)

Typical 18 ppm

Water changes can't take your tank's nitrate below this level.

From City of Tacoma Water Division's 2025 water quality report; EPA monitoring data (2012–2025).

Chlorine or chloramine at the tap

0.3–1.7 ppm

Typical 1 ppm

At tap levels, chlorine and chloramine are toxic to fish, shrimp and the bacteria in a filter. Water conditioners are made for this range.

Published by your utility: City of Tacoma Water Division's 2025 water quality report.

Water chemistry

General hardness

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

Carbonate hardness (alkalinity)

24–28 ppm

Typical 26 ppm

Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.

From EPA monitoring data; City of Tacoma Water Division, which supplies Bonney Lake Water Department City (2012–2019).

pH

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

Who supplies Prairie Ridge, WA

  • City of Tacoma Water Division

    Serves 84% of residents · Lake or river water · Chlorine

    2025 water quality report
  • Bonney Lake Water Department City

    Serves 17% of residents · Buys water from City of Tacoma Water Division · Chlorine

Our data comes from public records and is still incomplete. Many utilities don't publish every number, so we're adding more all the time. Your city's range is a starting point: testing your own tap is the only way to know exactly what's in it.

Tap water lookup covers US cities only for now. Want to know why it matters? Read our story on tap water.

Compiled by Shoal & Stem from public records. Free to cite with a link.

Also supplied by City of Tacoma Water Division

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