Shoal & Stem

Iowa Colony, TX tap water

Supplied mostly by City of Iowa Colony, plus 1 other utility. 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 (2017).

Nitrate (NO₃)

Not detected (Low)

Not detected in testing, so water changes lower your tank's nitrate well.

From EPA monitoring data (2017–2019).

Water chemistry

General hardness

Area estimate

75–341 ppm

Typical 147 ppm

Moderately hard. Great for livebearers, and most community fish adapt.

Area estimate from nearby wells: USGS well samples in your county (2012).

Carbonate hardness (alkalinity)

292–299 ppm

Typical 293 ppm

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

From EPA monitoring data (2017–2019).

pH

7.4

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

From EPA monitoring data (2018–2019).

Total dissolved solids

Area estimate

314–711 ppm

Typical 390 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 (2012).

  • City of Iowa Colony and Brazoria County MUD 55 add phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Iowa Colony, TX

  • City of Iowa Colony

    Serves 77% of residents · Groundwater (wells) · Chlorine

  • Brazoria County MUD 55

    Serves 15% of residents · Groundwater (wells) · 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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