Santa Fe, TX tap water
Supplied mostly by Santa Fe Utility, plus 1 other utility. 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 (2012–2015).
Nitrate (NO₃)
2.7–3.7 ppm (Low)
Typical 3.2 ppm
Low, so water changes lower your tank's nitrate well.
From EPA monitoring data (2012–2019).
Water chemistry
General hardness
Area estimate40–518 ppm
Typical 237 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
Carbonate hardness (alkalinity)
92–125 ppm
Typical 109 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data (2012–2018).
pH
7.2
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2012).
Total dissolved solids
Area estimate190–1080 ppm
Typical 345 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Area estimate from nearby wells: USGS well samples in your state (2000–2023).
- Galveston County Wcid 8 adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Santa Fe, TX
Santa Fe Utility
Serves 51% of residents · Groundwater (wells) · Chlorine
Galveston County Wcid 8
Serves 45% of residents · Buys water from Gulf Coast Water Authority TX City · Chloramine
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.