Mountain Green, UT tap water
Supplied mostly by Cottonwood Mutual, plus 1 other utility. Here's what the water means for your fish.
Disinfectant
Not confirmed
We couldn't confirm how your water is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out.
Safety for fish and shrimp
Nitrate (NO₃)
Up to 21 ppm (Low)
Typical 5 ppm
Water changes can't take your tank's nitrate below this level.
From EPA monitoring data, measured before treatment (2012–2019).
Water chemistry
General hardness
Area estimate128–751 ppm
Typical 289 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
Carbonate hardness (alkalinity)
Area estimate114–308 ppm
Typical 196 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
pH
Area estimate7.2–8
Typical 7.6
Most community fish do well here. Stable water matters more than the exact number.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
Total dissolved solids
Area estimate183–1330 ppm
Typical 432 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
Who supplies Mountain Green, UT
Cottonwood Mutual
Serves 70% of residents · Groundwater (wells) · Disinfectant not listed
Highlands Water Company Inc
Serves 27% 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.