Fresno, TX tap water
Supplied mostly by Fort Bend County MUD 23, plus 2 other utilities. 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 (2012–2019).
Nitrate (NO₃)
Not detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data; Fort Bend County MUD 23, which supplies Fort Bend County MUD 24 (2012–2019).
Water chemistry
General hardness
Area estimate66–234 ppm
Typical 145 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
Area estimate from nearby wells: USGS well samples in your county (2002–2015).
Carbonate hardness (alkalinity)
278–286 ppm
Typical 285 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data; Fort Bend County MUD 23, which supplies Fort Bend County MUD 24 (2012–2018).
pH
8
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data; Fort Bend County MUD 23, which supplies Fort Bend County MUD 24 (2012).
Total dissolved solids
Area estimate228–568 ppm
Typical 351 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 county (2002–2015).
Who supplies Fresno, TX
Fort Bend County MUD 23
Serves 42% of residents · Groundwater (wells) · Chlorine
Fort Bend County Fwsd 1
Serves 30% of residents · Groundwater (wells) · Chlorine
Fort Bend County MUD 24
Serves 7% of residents · Buys water from Fort Bend County MUD 23 · 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.