Shoal & Stem

Smithville, MO tap water

Supplied mostly by Smithville PWS, plus 2 other utilities. Here's what the water means for your fish.

Disinfectant

Chlorine or chloramine

Utilities here use chlorine or chloramine, depending on which one serves your address. Chlorine slowly gases off from standing water; chloramine doesn't.

Safety for fish and shrimp

Nitrate (NO₃)

Supplier's figure

7.1 ppm (Low)

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

From the utility that supplies yours: Kansas City PWS, which supplies Clay County Pwsd 9 (2012–2019).

Water chemistry

General hardness

Supplier's figure

123 ppm

Moderately soft to medium. Suits most community fish and plants.

From the utility that supplies yours: Kansas City PWS, which supplies Clay County Pwsd 9 (2025).

Carbonate hardness (alkalinity)

60–216 ppm

Typical 91 ppm

Moderate buffering. pH should stay fairly steady.

From EPA monitoring data; Kansas City PWS, which supplies Clay County Pwsd 9; Plattsburg PWS, which supplies Clinton County Pwsd 1, measured before treatment (2012–2025).

pH

7.8–10.1

Typical 7.9

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

From EPA monitoring data; Kansas City PWS, which supplies Clay County Pwsd 9; Plattsburg PWS, which supplies Clinton County Pwsd 1 (2012–2025).

Total dissolved solids

Supplier's figure

322–340 ppm

Typical 322 ppm

A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.

From the utility that supplies yours: Kansas City PWS, which supplies Clay County Pwsd 9 (2025).

Who supplies Smithville, MO

  • Smithville PWS

    Serves 39% of residents · Lake or river water · Chlorine

  • Clay County Pwsd 9

    Serves 8% of residents · Buys water from Kansas City PWS · Chloramine

  • Clinton County Pwsd 1

    Serves 5% of residents · Buys water from Plattsburg PWS · Chloramine

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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