Shoal & Stem

Wahpeton, ND tap water

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

Disinfectant

Chloramine

Your water is treated with chloramine. Unlike chlorine, it doesn't gas off when water sits out, and many pitcher and fridge filters aren't rated to remove it. Conditioners that list chloramine on the label break it apart, which frees a little ammonia. Some utilities switch to plain chlorine for a few weeks a year.

Safety for fish and shrimp

Nitrate (NO₃)

Area estimate

0.2–83 ppm (Low)

Typical 7.5 ppm

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

Area estimate from nearby wells: USGS well samples in your county (2000–2004).

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)

83–228 ppm

Typical 83 ppm

Moderate buffering. pH should stay fairly steady.

From EPA monitoring data (2018).

pH

7.7–8.9

Typical 8.9

Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.

From EPA monitoring data (2018).

  • City of Wahpeton and Southeast Wud (East) add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
  • City of Wahpeton and Southeast Wud (East) soften their water at the plant, so it may be softer than the local groundwater.

Who supplies Wahpeton, ND

  • City of Wahpeton

    Serves 97% of residents · Groundwater (wells) · Chloramine

  • Southeast Wud (East)

    Serves 49% of residents · Groundwater (wells) · 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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