Shoal & Stem
Tap water lookup

Lynnwood, WA tap water

Supplied by City of Lynnwood. Here's what its 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

Nitrate (NO₃)

Supplier's figure

0.4 ppm (Low)

Low, so water changes lower your tank's nitrate well.

From the utility that supplies yours: City of Everett Public Works Dept., which supplies City of Lynnwood (2012–2018).

Water chemistry

General hardness

Supplier's figure

10–16 ppm

Typical 13 ppm

Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.

From the utility that supplies yours: Alderwood Water District, which supplies City of Lynnwood (2025).

Carbonate hardness (alkalinity)

Supplier's figure

13–26 ppm

Typical 17 ppm

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

From the utility that supplies yours: Alderwood Water District, which supplies City of Lynnwood (2025).

pH

Supplier's figure

7.1–9.1

Typical 7.6

Most community fish do well here. Stable water matters more than the exact number.

From the utility that supplies yours: Alderwood Water District, which supplies City of Lynnwood (2025).

Who supplies Lynnwood, WA

  • City of Lynnwood

    Serves 93% of residents · Buys water from Alderwood Water District · 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.

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