Nacogdoches, TX water hardness

Tap water hardness
24mg/L
1.4gpg
Soft

Reported by City of Nacogdoches · November 2024

TX typical
112 mg/L
EPA health violations since 2016
4
Data
Utility report

Tap water in Nacogdoches has about 24 mg/L of hardness, which is 1.4 grains per gallon. On the USGS scale that counts as soft. The number comes from City of Nacogdoches, dated November 2024.

Nacogdoches on the hardness scale, with nearby cities
060120180240300360+TX typical 112Rusk: 3 mg/LRusk 3Whitehouse: 3 mg/LWhitehouse 3Henderson: 8 mg/LHenderson 8Bullard: 9 mg/LBullard 9Kilgore: 18 mg/LKilgore 18Jasper: 18 mg/LJasper 18Palestine: 25 mg/LPalestine 25Tyler: 26 mg/LTyler 26Carthage: 57 mg/LCarthage 57Crockett: 57 mg/LCrockett 57Nacogdoches 24mg/L as calcium carbonate060120180240300360+TX 112Rusk: 3 mg/LRusk 3Whitehouse: 3 mg/LWhitehouse 3Henderson: 8 mg/LHenderson 8Bullard: 9 mg/LBullard 9Carthage: 57 mg/LCarthage 57Crockett: 57 mg/LCrockett 5724 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 24 mg/L, Nacogdoches is 88 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 3 mg/L in Rusk to 57 in Carthage.

What 24 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 24 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 Nacogdoches's water system

City of Nacogdoches · PWSID TX1740003

4 health-based violations since 2016

Serves about 50,226 people from surface water.

Health-based
4
Monitoring or reporting
11
Open now
0
20162017201820192020202120222023202420252026Total trihalomethanes (TTHM)'16'18'20'22'24'26Total trihalomethanes (TTHM)
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total trihalomethanes (TTHM)a disinfection byproduct42016–2017Resolved

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 Nacogdoches water hard?

No. It measures about 24 mg/L (1.4 grains per gallon), which the USGS classes as soft.

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

About 1.4 gpg. One grain per gallon equals 17.1 mg/L, so 24 mg/L divided by 17.1 gives 1.4.

Has the Nacogdoches water system had EPA violations?

EPA records show 4 health-based violations for City of Nacogdoches since 2016, involving Total trihalomethanes (TTHM). There were also 11 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, November 12, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.