Atascocita, TX tap water
Supplied mostly by Harris County MUD 109, plus 7 other utilities. 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)
Up to 0.16 ppm (Low)
Typically not detected
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2012–2019).
Nitrate (NO₃)
Up to 0.9 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data (2012–2019).
Water chemistry
General hardness
Supplier's figure43–183 ppm
Typical 118 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: City of Houston, which supplies Harris County MUD 278; City of Houston, which supplies Harris County MUD 49 (2024).
Carbonate hardness (alkalinity)
130–252 ppm
Typical 147 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data (2012–2018).
pH
6.7–9
Typical 7.8
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data; City of Houston, which supplies Harris County MUD 278 (2012–2024).
Total dissolved solids
Supplier's figure144–321 ppm
Typical 203 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 Houston, which supplies Harris County MUD 278; City of Houston, which supplies Harris County MUD 49 (2024).
Who supplies Atascocita, TX
Harris County MUD 109
Serves 8% of residents · Groundwater (wells) · Chlorine
Harris County MUD 153
Serves 8% of residents · Groundwater (wells) · Chlorine
Harris County MUD 152
Serves 7% of residents · Groundwater (wells) · Chlorine
Harris County MUD 278
Serves 7% of residents · Buys water from City of Houston · Chloramine
Trail of the Lakes MUD
Serves 7% of residents · Groundwater (wells) · Chlorine
Harris County MUD 151
Serves 7% of residents · Groundwater (wells) · Chlorine
Harris County MUD 49
Serves 5% of residents · Buys water from City of Houston · Chloramine
Harris County MUD 132
Serves 5% 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.