Cynthiana, KY tap water
Supplied mostly by Cynthiana Municipal Water Works, 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)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2012–2017).
Nitrate (NO₃)
0.2–4.9 ppm (Low)
Typical 4.9 ppm
Low, so water changes lower your tank's nitrate well.
From EPA monitoring data; Cynthiana Municipal Water Works and Kentucky-American Water Co and Paris Water Works, which supplies Harrison Co Water Association (2012–2025).
Water chemistry
General hardness
Supplier's figure60–343 ppm
Typical 154 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
From the utility that supplies yours: Kentucky-American Water Co, which supplies Harrison Co Water Association (2025).
Carbonate hardness (alkalinity)
17–220 ppm
Typical 150 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data; Cynthiana Municipal Water Works and Kentucky-American Water Co and Kentucky American Water- Millersburg and Paris Water Works, which supplies Harrison Co Water Association (2012–2025).
pH
6.7–8.2
Typical 7.2
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data; Cynthiana Municipal Water Works and Kentucky-American Water Co and Kentucky American Water- Millersburg and Paris Water Works, which supplies Harrison Co Water Association (2012–2025).
Total dissolved solids
Supplier's figure168–492 ppm
Typical 324 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
From the utility that supplies yours: Kentucky-American Water Co, which supplies Harrison Co Water Association (2025).
- Harrison Co Water Association adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Cynthiana, KY
Cynthiana Municipal Water Works
Serves 90% of residents · Lake or river water · Chlorine
Harrison Co Water Association
Serves 8% of residents · Buys water from Cynthiana Municipal Water Works · 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.