Shoal & Stem
Tap water lookup

Galveston, TX tap water

Supplied by City of Galveston. 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 figure

2.7 ppm (Low)

Low, so water changes lower your tank's nitrate well.

From the utility that supplies yours: Gulf Coast Water Authority TX City, which supplies City of Galveston (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 figure

116 ppm

Strong buffering. pH stays steady and hard to lower without RO water.

From the utility that supplies yours: Gulf Coast Water Authority TX City, which supplies City of Galveston (2012–2019).

pH

Supplier's figure

7.1

Most community fish do well here. Stable water matters more than the exact number.

From the utility that supplies yours: Gulf Coast Water Authority TX City, which supplies City of Galveston (2012).

  • City of Galveston adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Galveston, TX

  • City of Galveston

    Serves all 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.

Look up another city