Berthoud, CO tap water
Supplied mostly by Town of Berthoud, plus 1 other utility. Here's what the 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2013–2018).
Nitrate (NO₃)
Not detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data; Carter Lake Filter Plant, which supplies Little Thompson WD (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)
20 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
From EPA monitoring data (2016–2017).
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
- Little Thompson WD adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Berthoud, CO
Town of Berthoud
Serves 67% of residents · Lake or river water · Chlorine
Little Thompson WD
Serves 16% of residents · Buys water from Carter Lake Filter Plant · 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.