Grand Prairie, TX tap water
Supplied by City of Grand Prairie. Here's what its water means for your fish.
Disinfectant
Chloramine
Your water is treated with chloramine. Unlike chlorine, it doesn't gas off when water sits out, and many pitcher and fridge filters aren't rated to remove it. Conditioners that list chloramine on the label break it apart, which frees a little ammonia. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Nitrate (NO₃)
Supplier's figureUp to 3.5 ppm (Low)
Typical 2.4 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: City of Midlothian and City of Mansfield and Dallas Water Utility and City of Fort Worth, which supplies City of Grand Prairie (2012–2025).
Water chemistry
General hardness
170 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
Published by your utility: City of Grand Prairie's 2024 water quality report.
Carbonate hardness (alkalinity)
70–117 ppm
Typical 88 ppm
Moderate buffering. pH should stay fairly steady.
From EPA monitoring data (2012–2018).
pH
7.4–8.3
Typical 8.1
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From EPA monitoring data (2018).
Total dissolved solids
Supplier's figure184–274 ppm
Typical 229 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
From the utility that supplies yours: City of Fort Worth, which supplies City of Grand Prairie (2023).
- City of Grand Prairie adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Grand Prairie, TX
- 2024 water quality report
City of Grand Prairie
Serves 96% of residents · Buys water from City of Midlothian · 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.