Mayville, ND tap water
Supplied mostly by City of Mayville, plus 1 other utility. Here's what the 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2014–2017).
Nitrate (NO₃)
2 ppm (Low)
Low, so water changes lower your tank's nitrate well.
From 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)
81–84 ppm
Typical 81 ppm
Moderate buffering. pH should stay fairly steady.
From EPA monitoring data (2017).
pH
7.2–7.5
Typical 7.2
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2017).
- City of Mayville and East Central Regional WD-Gf add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
- City of Mayville and East Central Regional WD-Gf soften their water at the plant, so it may be softer than the local groundwater.
Who supplies Mayville, ND
City of Mayville
Serves 94% of residents · Buys water from East Central Regional WD-Traill · Chlorine
East Central Regional WD-Gf
Serves 50% 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.