Hard water in New Braunfels, TX
Reported by New Braunfels Utilities · August 2025
- TX typical
- 112 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
The water in New Braunfels carries roughly 202 mg/L of dissolved calcium and magnesium, or 11.8 grains per gallon. That is very hard water. The number comes from New Braunfels Utilities, dated August 2025. Reports for this system disagree, with values from 202 to 246 mg/L.
At 202 mg/L, New Braunfels is 90 mg/L above the typical Texas figure of 112. Of the 10 nearest cities we track, 9 have softer water and 1 has harder. The range nearby runs from 85 mg/L in Cibolo to 212 in San Marcos.
What 202 mg/L means at home
Scale forms fast here. Kettles and coffee makers need regular descaling, and showerheads clog unless you clean them.
Tank water heaters collect mineral sediment that insulates the water from the burner, so flushing the tank matters more than usual.
Dishes and glass shower doors spot easily. Soap scum and a dull film on hair or laundry are common complaints.
Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.
What to do about it
At 202 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 11.8 gpg = 2,657 grains a day. A 24,000-grain unit regenerates about every 9 days.
EPA record for New Braunfels's water system
No health-based violations since 2016
Serves about 116,477 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 1
- Open now
- 0
Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.
Questions
Is New Braunfels water hard?
Yes. It measures about 202 mg/L (11.8 grains per gallon), which the USGS classes as very hard.
What is the water hardness in New Braunfels in grains per gallon?
About 11.8 gpg. One grain per gallon equals 17.1 mg/L, so 202 mg/L divided by 17.1 gives 11.8.
What size water softener do I need in New Braunfels?
For 3 people using 75 gallons each per day, 11.8 gpg works out to about 2,657 grains a day. A 24,000-grain softener covers that with a regeneration about every 9 days.
Has the New Braunfels water system had EPA violations?
EPA records show no health-based violations for New Braunfels Utilities since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.
Nearby cities
- Cibolo85 mg/LModerately hard
- Seguin125 mg/LHard
- Schertz176 mg/LHard
- Selma180 mg/LHard
- Universal City121 mg/LHard
- San Marcos212 mg/LVery hard
- Live Oak180 mg/LHard
- Converse179 mg/LHard
- Bulverde157 mg/LHard
- Windcrest180 mg/LHard
Hardness data: TapWaterData US Water Hardness (utility report, August 8, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.