Grafton, ND tap water
Supplied mostly by Walsh Rural 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)
0.03 ppm (Low)
Essentially none, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2014–2017).
Nitrate (NO₃)
Supplier's figure3.4–6.5 ppm (Low)
Typical 3.4 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: City of Park River, which supplies Walsh Rural Water District; EPA monitoring data (2014–2017).
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 figure99–150 ppm
Typical 150 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: City of Park River, which supplies Walsh Rural Water District; EPA monitoring data (2017).
pH
Supplier's figure9.1
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: City of Park River, which supplies Walsh Rural Water District; EPA monitoring data (2017).
- Walsh Rural Water District and City of Grafton add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
- Walsh Rural Water District and City of Grafton soften their water at the plant, so it may be softer than the local groundwater.
Who supplies Grafton, ND
Walsh Rural Water District
Serves 51% of residents · Buys water from City of Park River · Chlorine
City of Grafton
Serves 50% of residents · Lake or river water · 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.