Caledonia, WI tap water
Supplied by Village of Caledonia Water Utility -. Here's what its water means for your fish.
Disinfectant
Chlorine
Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.
Safety for fish and shrimp
Nitrate (NO₃)
Supplier's figure1.6 ppm (Low)
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Racine Waterworks, which supplies Village of Caledonia Water Utility - (2025).
Water chemistry
General hardness
Supplier's figure140 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: Racine Waterworks, which supplies Village of Caledonia Water Utility - (2025).
Carbonate hardness (alkalinity)
Supplier's figure106–119 ppm
Typical 111 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Racine Waterworks and Oak Creek Waterworks, which supplies Village of Caledonia Water Utility - (2012–2025).
pH
Supplier's figure7.5–8
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: Racine Waterworks, which supplies Village of Caledonia Water Utility - (2025).
Total dissolved solids
Supplier's figure198–213 ppm
Typical 205 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: Racine Waterworks, which supplies Village of Caledonia Water Utility - (2025).
- Village of Caledonia Water Utility - adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Caledonia, WI
Village of Caledonia Water Utility -
Serves 71% of residents · Buys water from Racine Waterworks · 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.