The Woodlands, TX water hardness

Tap water hardness
44mg/L
2.5gpg
SoftReports range 44–63

Reported by Montgomery County MUD 47 · May 2025

TX typical
112 mg/L
EPA health violations since 2016
1
Data
Utility report

The water in The Woodlands carries roughly 44 mg/L of dissolved calcium and magnesium, or 2.5 grains per gallon. That is soft water. The number comes from Montgomery County MUD 47, dated May 2025. Reports for this system disagree, with values from 44 to 63 mg/L.

The Woodlands on the hardness scale, with nearby cities
060120180240300360+TX typical 112Prairie View: 43 mg/LPrairie View 43Humble: 52 mg/LHumble 52Willis: 57 mg/LWillis 57Waller: 74 mg/LWaller 74Cleveland: 78 mg/LCleveland 78Tomball: 82 mg/LTomball 82Conroe: 82 mg/LConroe 82Spring: 86 mg/LSpring 86Houston: 96 mg/LHouston 96Magnolia: 144 mg/LMagnolia 144The Woodlands 44mg/L as calcium carbonate060120180240300360+TX 112Humble: 52 mg/LHumble 52Willis: 57 mg/LWillis 57Tomball: 82 mg/LTomball 82Conroe: 82 mg/LConroe 82Spring: 86 mg/LSpring 86Magnolia: 144 mg/LMagnolia 14444 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 44 mg/L, The Woodlands is 68 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 43 mg/L in Prairie View to 144 in Magnolia.

What 44 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

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

Nothing, as far as hardness goes. At 44 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for The Woodlands's water system

Montgomery County MUD 47 · PWSID TX1700458

1 health-based violation since 2016

Serves about 24,171 people from surface water.

Health-based
1
Monitoring or reporting
2
Open now
0
20162017201820192020202120222023202420252026Total Coliform Rule'16'18'20'22'24'26Total Coliform Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total Coliform Rulebacteria12018Resolved

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 The Woodlands water hard?

No. It measures about 44 mg/L (2.5 grains per gallon), which the USGS classes as soft.

What is the water hardness in The Woodlands in grains per gallon?

About 2.5 gpg. One grain per gallon equals 17.1 mg/L, so 44 mg/L divided by 17.1 gives 2.5.

Has the The Woodlands water system had EPA violations?

EPA records show 1 health-based violation for Montgomery County MUD 47 since 2016, involving Total Coliform Rule. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 342 cities in Texas

Hardness data: TapWaterData US Water Hardness (utility report, May 26, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.