Pecan Grove, TX tap water
Supplied mostly by Pecan Grove MUD, plus 5 other utilities. Here's what the 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2012–2015).
Nitrate (NO₃)
Up to 2.4 ppm (Low)
Typical 1.4 ppm
Low, so water changes lower your tank's nitrate well.
From EPA monitoring data; City of Richmond, which supplies Fort Bend County MUD 140 Rivers Edge; City of Richmond, which supplies Fort Bend County MUD 145 Rio Vista (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 Fort Bend County MUD 146 (2024).
Carbonate hardness (alkalinity)
103–207 ppm
Typical 125 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data; City of Richmond, which supplies Fort Bend County MUD 140 Rivers Edge; City of Richmond, which supplies Fort Bend County MUD 145 Rio Vista (2013–2019).
pH
Supplier's figure7.4–8.2
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: City of Richmond, which supplies Fort Bend County MUD 140 Rivers Edge; City of Richmond, which supplies Fort Bend County MUD 145 Rio Vista; North Fort Bend Water Authority, which supplies Fort Bend County MUD 146 (2012–2019).
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 Fort Bend County MUD 146 (2024).
- Fort Bend County MUD 134D, Fort Bend County MUD 134E and Fort Bend County MUD 146 add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Pecan Grove, TX
Pecan Grove MUD
Serves 48% of residents · Lake or river water · Chloramine
Fort Bend County MUD 134D
Serves 12% of residents · Buys water from Fort Bend County MUD 134E · Chloramine
Fort Bend County MUD 140 Rivers Edge
Serves 10% of residents · Buys water from City of Richmond · Chloramine
Fort Bend County MUD 134E
Serves 7% of residents · Groundwater (wells) · Chloramine
Fort Bend County MUD 145 Rio Vista
Serves 6% of residents · Buys water from City of Richmond · Chloramine
Fort Bend County MUD 146
Serves 6% of residents · Buys water from North Fort Bend Water Authority · 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.