Shoal & Stem
Tap water lookup

Seguin, TX tap water

Supplied mostly by City of Seguin, 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 (2012–2017).

Nitrate (NO₃)

Up to 6.2 ppm (Low)

Typical 2.8 ppm

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

From 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)

79–212 ppm

Typical 189 ppm

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

From EPA monitoring data (2012–2019).

pH

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

Who supplies Seguin, TX

  • City of Seguin

    Serves 68% of residents · Lake or river water · Chloramine

  • Springs Hill SUD

    Serves 18% of residents · Lake or river water · 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.

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