Thiensville, WI tap water
Supplied mostly by Century Estates 1, plus 5 other utilities. Here's what the water means for your fish.
Disinfectant
Not confirmed
We couldn't confirm how your water is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out.
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 (2012–2018).
Nitrate (NO₃)
Up to 0.4 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
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)
191–290 ppm
Typical 240 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data (2018).
pH
7.3–7.6
Typical 7.4
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2018).
Who supplies Thiensville, WI
Century Estates 1
Serves 26% of residents · Groundwater (wells) · Disinfectant not listed
Lake Country Apartments
Serves 18% of residents · Groundwater (wells) · Disinfectant not listed
Williamsburg 206
Serves 11% of residents · Groundwater (wells) · Disinfectant not listed
Grand Ave Apartments
Serves 7% of residents · Groundwater (wells) · Chlorine
Alberta Subdivision
Serves 7% of residents · Groundwater (wells) · Disinfectant not listed
Village Heights
Serves 6% 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.