Jefferson City, MO tap water
Supplied mostly by Missouri American Water – Jefferson City District, plus 2 other utilities. 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 (2012–2019).
Nitrate (NO₃)
7.8 ppm (Low)
Water changes can't take your tank's nitrate below this level.
From EPA monitoring data (2012–2019).
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)
64 ppm
Moderate buffering. pH should stay fairly steady.
From EPA monitoring data (2012).
pH
7.3–9.1
Typical 9.1
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From EPA monitoring data (2012–2018).
- Missouri American Water – Jefferson City District softens its water at the plant, so it may be softer than the local groundwater.
Who supplies Jefferson City, MO
Missouri American Water – Jefferson City District
Serves 56% of residents · Lake or river water · Chloramine
Cole County Pwsd 2
Serves 20% of residents · Groundwater (wells) · Chlorine
Cole County Pwsd 1
Serves 18% of residents · Groundwater (wells) · Disinfectant not listed
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.