Shoal & Stem

Oskaloosa, KS tap water

Supplied by City of Oskaloosa. 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

18 ppm (Worth knowing)

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

From the utility that supplies yours: Jefferson Co RWD 7, which supplies City of Oskaloosa (2012–2019).

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)

Supplier's figure

270–290 ppm

Typical 280 ppm

Strong buffering. pH stays steady and hard to lower without RO water.

From the utility that supplies yours: Jefferson Co RWD 7, which supplies City of Oskaloosa (2014–2017).

pH

Supplier's figure

7.2–7.3

Typical 7.3

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

From the utility that supplies yours: Jefferson Co RWD 7, which supplies City of Oskaloosa (2014–2017).

Who supplies Oskaloosa, KS

  • City of Oskaloosa

    Serves 98% of residents · Buys water from Jefferson Co RWD 7 · 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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