How hard is the water in Mineral Wells, TX?

Tap water hardness
91mg/L
5.3gpg
Moderately hardReports range 11–117

Reported by City of Mineral Wells · June 2022

TX typical
112 mg/L
EPA health violations since 2016
2
Softener for 3 people
24k grain
Data
Utility report

Tap water in Mineral Wells has about 91 mg/L of hardness, which is 5.3 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from City of Mineral Wells, dated June 2022. Reports for this system disagree, with values from 11 to 117 mg/L.

Mineral Wells on the hardness scale, with nearby cities
060120180240300360+TX typical 112Pecan Plantation: 26 mg/LPecan Plantation 26Godley: 38 mg/LGodley 38Briar: 40 mg/LBriar 40Granbury: 61 mg/LGranbury 61Weatherford: 88 mg/LWeatherford 88Graham: 89 mg/LGraham 89Azle: 92 mg/LAzle 92Springtown: 99 mg/LSpringtown 99Haltom City: 109 mg/LHaltom City 109Willow Park: 115 mg/LWillow Park 115Mineral Wells 91mg/L as calcium carbonate060120180240300360+TX 112Briar: 40 mg/LBriar 40Granbury: 61 mg/LGranbury 61Weatherford: 88 mg/LWeatherford 88Azle: 92 mg/LAzle 92Springtown: 99 mg/LSpringtown 99Willow Park: 115 mg/LWillow Park 11591 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 91 mg/L, Mineral Wells is 21 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 6 have softer water and 4 have harder. The range nearby runs from 26 mg/L in Pecan Plantation to 115 in Willow Park.

What 91 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

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

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Mineral Wells

3 people × 75 gallons a day × 5.3 gpg = 1,192 grains a day. A 24,000-grain unit regenerates about every 20 days.

Size it for your household

EPA record for Mineral Wells's water system

City of Mineral Wells · PWSID TX1820001

2 health-based violations since 2016

Serves about 15,564 people from surface water.

Health-based
2
Monitoring or reporting
3
Open now
0
20162017201820192020202120222023202420252026ChloriteTotal trihalomethanes (TTHM)'16'18'20'22'24'26ChloriteTotal trihalomethanes (TTHM)
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Chlorite12023Resolved
Total trihalomethanes (TTHM)a disinfection byproduct12017Resolved

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 Mineral Wells water hard?

Somewhat. It measures about 91 mg/L (5.3 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Mineral Wells in grains per gallon?

About 5.3 gpg. One grain per gallon equals 17.1 mg/L, so 91 mg/L divided by 17.1 gives 5.3.

What size water softener do I need in Mineral Wells?

For 3 people using 75 gallons each per day, 5.3 gpg works out to about 1,192 grains a day. A 24,000-grain softener covers that with a regeneration about every 20 days.

Has the Mineral Wells water system had EPA violations?

EPA records show 2 health-based violations for City of Mineral Wells since 2016, involving Chlorite, Total trihalomethanes (TTHM). There were also 3 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, June 22, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.