Keene, TX water hardness

Tap water hardness
37mg/L
2.2gpg
SoftReports range 7–37

Reported by Johnson County SUD · March 2025

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

Keene water measures 37 mg/L (2.2 gpg) of hardness, soft by USGS standards. The number comes from Johnson County SUD, dated March 2025. Reports for this system disagree, with values from 7 to 37 mg/L.

Keene on the hardness scale, with nearby cities
060120180240300360+TX typical 112Venus: 7 mg/LVenus 7Pecan Plantation: 26 mg/LPecan Plantation 26Burleson: 32 mg/LBurleson 32Joshua: 38 mg/LJoshua 38Alvarado: 38 mg/LAlvarado 38Godley: 38 mg/LGodley 38Cleburne: 41 mg/LCleburne 41Midlothian: 41 mg/LMidlothian 41Mansfield: 53 mg/LMansfield 53Kennedale: 90 mg/LKennedale 90Keene 37mg/L as calcium carbonate060120180240300360+TX 112Venus: 7 mg/LVenus 7Burleson: 32 mg/LBurleson 32Joshua: 38 mg/LJoshua 38Alvarado: 38 mg/LAlvarado 38Godley: 38 mg/LGodley 38Cleburne: 41 mg/LCleburne 4137 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 37 mg/L, Keene is 75 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 3 have softer water and 7 have harder. The range nearby runs from 7 mg/L in Venus to 90 in Kennedale.

What 37 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 37 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 Keene's water system

City of Keene · PWSID TX1260008

1 health-based violation since 2016

Serves about 6,863 people from surface water.

Health-based
1
Monitoring or reporting
5
Open now
1

EPA lists City of Keene as the system serving Keene. The hardness figure above comes from a different system's report, which TapWaterData uses for Keene.

20162017201820192020202120222023202420252026Nitrite'16'18'20'22'24'26Nitrite
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Nitrite12018Resolved

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 Keene water hard?

No. It measures about 37 mg/L (2.2 grains per gallon), which the USGS classes as soft.

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

About 2.2 gpg. One grain per gallon equals 17.1 mg/L, so 37 mg/L divided by 17.1 gives 2.2.

Has the Keene water system had EPA violations?

EPA records show 1 health-based violation for City of Keene since 2016, involving Nitrite. There were also 5 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, March 24, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.