Festus, MO tap water
Supplied mostly by Festus PWS, 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
Nitrate (NO₃)
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
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 figure203 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Jefferson County Water Authority, which supplies Festus PWS (2016).
pH
Supplier's figure7.2–8.8
Typical 8.8
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: Jefferson County Water Authority, which supplies Festus PWS; EPA monitoring data (2012–2019).
- Festus PWS softens its water at the plant, so it may be softer than the local groundwater.
Who supplies Festus, MO
Festus PWS
Serves 90% of residents · Buys water from Jefferson County Water Authority · Chloramine
Jefferson County Pwsd 7
Serves 5% 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.