Henderson, TX water hardness

Tap water hardness
8mg/L
0.5gpg
Soft

Calculated from the utility's calcium and magnesium results · June 2022

TX typical
112 mg/L
EPA health violations since 2016
2
Data
Calculated from utility data

Tap water in Henderson has about 8 mg/L of hardness, which is 0.5 grains per gallon. On the USGS scale that counts as soft. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (June 2022).

Henderson on the hardness scale, with nearby cities
060120180240300360+TX typical 112Whitehouse: 3 mg/LWhitehouse 3Rusk: 3 mg/LRusk 3Gladewater: 9 mg/LGladewater 9Bullard: 9 mg/LBullard 9Marshall: 13 mg/LMarshall 13Kilgore: 18 mg/LKilgore 18White Oak: 25 mg/LWhite Oak 25Tyler: 26 mg/LTyler 26Longview: 41 mg/LLongview 41Carthage: 57 mg/LCarthage 57Henderson 8mg/L as calcium carbonate060120180240300360+TX 112Whitehouse: 3 mg/LWhitehouse 3Gladewater: 9 mg/LGladewater 9Kilgore: 18 mg/LKilgore 18White Oak: 25 mg/LWhite Oak 25Longview: 41 mg/LLongview 41Carthage: 57 mg/LCarthage 578 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 8 mg/L, Henderson is 104 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 3 mg/L in Whitehouse to 57 in Carthage.

What 8 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 8 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 Henderson's water system

City of Henderson · PWSID TX2010001

2 health-based violations since 2016

Serves about 14,666 people from surface water.

Health-based
2
Monitoring or reporting
41
Open now
0

EPA lists this system as serving Henderson.

20162017201820192020202120222023202420252026Total trihalomethanes (TTHM)Lead and Copper Rule'16'18'20'22'24'26Total trihalomethanes (TTHM)Lead and Copper Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total trihalomethanes (TTHM)a disinfection byproduct12026Resolved
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 Henderson water hard?

No. It measures about 8 mg/L (0.5 grains per gallon), which the USGS classes as soft.

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

About 0.5 gpg. One grain per gallon equals 17.1 mg/L, so 8 mg/L divided by 17.1 gives 0.5.

Has the Henderson water system had EPA violations?

EPA records show 2 health-based violations for City of Henderson since 2016, involving Total trihalomethanes (TTHM), Lead and Copper Rule. There were also 41 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 (calculated from utility data, June 27, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.