Shoal & Stem

Indianola, IA tap water

Supplied mostly by Warren Water District, plus 1 other utility. 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

Nitrite (NO₂)

Up to 0.85 ppm (Worth knowing)

Typical 0.43 ppm

Some nitrite shows up in this tap water, which can happen in chloramine systems, and it goes into the tank with each water change.

From EPA monitoring data (2018–2019).

Nitrate (NO₃)

Supplier's figure

Up to 26 ppm (Worth knowing)

Typical 20 ppm

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

From the utility that supplies yours: Des Moines Water Works, which supplies Warren Water District; EPA monitoring data (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

259 ppm

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

From the utility that supplies yours: Des Moines Water Works, which supplies Warren Water District (2012–2019).

pH

Not published yet

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

  • Warren Water District adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
  • Warren Water District and Indianola Water Supply soften their water at the plant, so it may be softer than the local groundwater.

Who supplies Indianola, IA

  • Warren Water District

    Serves 51% of residents · Buys water from Des Moines Water Works · Chloramine

  • Indianola Water Supply

    Serves 47% of residents · Groundwater (wells) · 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.

More Iowa cities

Look up another city