Green Hill, TN tap water
Part of Green Hill is supplied by West Wilson Utility District, plus 1 other utility. Here's what its 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)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2014–2019).
Nitrate (NO₃)
1.5–1.9 ppm (Low)
Typical 1.9 ppm
Low, so water changes lower your tank's nitrate well.
From EPA monitoring data; Nashville Metro Water Service's 2025 water quality report (2014–2025).
Copper at home taps (first draw)
Not detected (Low)
The 90th percentile of first-draw samples from homes: water that sat in household pipes for at least six hours.
Not detected in testing. Water that sits in household pipes overnight can still pick some up.
Published by the utility: Nashville Metro Water Service's 2025 water quality report.
Water chemistry
General hardness
64–93 ppm
Typical 75 ppm
Moderately soft to medium. Suits most community fish and plants.
Published by the utility: Nashville Metro Water Service's 2025 water quality report.
Carbonate hardness (alkalinity)
54–88 ppm
Typical 65 ppm
Moderate buffering. pH should stay fairly steady.
Published by the utility: Nashville Metro Water Service's 2025 water quality report.
pH
7–7.4
Typical 7.2
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data; Nashville Metro Water Service's 2025 water quality report (2014–2025).
Total dissolved solids
128–189 ppm
Typical 146 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Published by the utility: Nashville Metro Water Service's 2025 water quality report.
- West Wilson Utility District and Nashville Metro Water Service add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Green Hill, TN
West Wilson Utility District
Serves 38% of residents · Lake or river water · Chlorine
- 2025 water quality report
Nashville Metro Water Service
Serves 7% of residents · Lake or river water · Chloramine
We couldn't fully map which utility serves Green Hill. These numbers come from the utilities we matched, which serve about 45% of residents.
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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.