How hard is the water in Waller, TX?

Tap water hardness
74mg/L
4.3gpg
Moderately hardReports range 74–114

Reported by City of Waller · June 2022

TX typical
112 mg/L
EPA health violations since 2016
1
Softener for 3 people
24k grain
Data
Utility report

Tap water in Waller has about 74 mg/L of hardness, which is 4.3 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from City of Waller, dated June 2022. Reports for this system disagree, with values from 74 to 114 mg/L.

Waller on the hardness scale, with nearby cities
060120180240300360+TX typical 112Prairie View: 43 mg/LPrairie View 43Sealy: 44 mg/LSealy 44The Woodlands: 44 mg/LThe Woodlands 44Hempstead: 49 mg/LHempstead 49Navasota: 53 mg/LNavasota 53Tomball: 82 mg/LTomball 82Conroe: 82 mg/LConroe 82Spring: 86 mg/LSpring 86Brenham: 91 mg/LBrenham 91Magnolia: 144 mg/LMagnolia 144Waller 74mg/L as calcium carbonate060120180240300360+TX 112Prairie View: 43 mg/LPrairie Vi. 43Sealy: 44 mg/LSealy 44Hempstead: 49 mg/LHempstead 49Navasota: 53 mg/LNavasota 53Tomball: 82 mg/LTomball 82Magnolia: 144 mg/LMagnolia 14474 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Waller sits 38 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 43 mg/L in Prairie View to 144 in Magnolia.

What 74 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 Waller

3 people × 75 gallons a day × 4.3 gpg = 972 grains a day. A 24,000-grain unit regenerates about every 24 days.

Size it for your household

EPA record for Waller's water system

City of Waller · PWSID TX2370003

1 health-based violation since 2016

Serves about 5,448 people from groundwater.

Health-based
1
Monitoring or reporting
14
Open now
1
20162017201820192020202120222023202420252026Lead and Copper Rule'16'18'20'22'24'26Lead and Copper Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Lead and Copper Rulecorrosion control and lead sampling12024Resolved

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 Waller water hard?

Somewhat. It measures about 74 mg/L (4.3 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Waller in grains per gallon?

About 4.3 gpg. One grain per gallon equals 17.1 mg/L, so 74 mg/L divided by 17.1 gives 4.3.

What size water softener do I need in Waller?

For 3 people using 75 gallons each per day, 4.3 gpg works out to about 972 grains a day. A 24,000-grain softener covers that with a regeneration about every 24 days.

Has the Waller water system had EPA violations?

EPA records show 1 health-based violation for City of Waller since 2016, involving Lead and Copper Rule. There were also 14 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 16, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.