Cibolo, TX tap water
Supplied mostly by City of Cibolo, 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 (2012–2015).
Nitrate (NO₃)
Supplier's figureUp to 9.5 ppm (Low)
Typical 0.1 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Crwa Wells Ranch and City of Schertz and Crwa Lake Dunlap WTP, which supplies City of Cibolo; 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)
Supplier's figure81–250 ppm
Typical 115 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Crwa Wells Ranch and City of Schertz and Crwa Lake Dunlap WTP, which supplies City of Cibolo; EPA monitoring data (2012–2019).
pH
7.3–8.3
Typical 7.8
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2019).
Who supplies Cibolo, TX
City of Cibolo
Serves 48% of residents · Buys water from Crwa Wells Ranch · Chlorine
Green Valley SUD
Serves 42% of residents · Buys water from Crwa Wells Ranch · 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.