Cullman, AL water hardness

Tap water hardness
40mg/L
2.3gpg
SoftCounty estimate

County estimate from 2,533 water samples in Cullman County · July 2026

AL typical
73 mg/L
EPA health violations since 2016
0
Data
County estimate

Water samples from around Cullman put hardness at about 40 mg/L (2.3 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 2,533 samples taken across Cullman County, mostly wells and streams, not a test of Cullman's treated tap water. One more reason for caution: EPA lists Cullman's water system as using surface water, which is often softer than the wells behind the county figure.

Cullman on the hardness scale, with nearby cities
060120180240300360+AL typical 73Albertville: 34 mg/LAlbertville 34Jasper: 51 mg/LJasper 51Guntersville: 69 mg/LGuntersville 69Decatur: 74 mg/LDecatur 74Arab: 79 mg/LArab 79Triana: 100 mg/LTriana 100Huntsville: 100 mg/LHuntsville 100Madison: 112 mg/LMadison 112Oneonta: 116 mg/LOneonta 116Springville: 149 mg/LSpringville 149Cullman 40mg/L as calcium carbonate060120180240300360+AL 73Jasper: 51 mg/LJasper 51Guntersville: 69 mg/LGuntersvil. 69Decatur: 74 mg/LDecatur 74Arab: 79 mg/LArab 79Triana: 100 mg/LTriana 100Oneonta: 116 mg/LOneonta 11640 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 40 mg/L, Cullman is 33 mg/L below the typical Alabama figure of 73. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 34 mg/L in Albertville to 149 in Springville.

What 40 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 40 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 Cullman's water system

Cullman County Water Department · PWSID AL0000394

No health-based violations since 2016

Serves about 57,006 people from surface water.

Health-based
0
Monitoring or reporting
0
Open now
0

EPA lists this system as serving Cullman.

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 Cullman water hard?

No. It measures about 40 mg/L (2.3 grains per gallon), which the USGS classes as soft.

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

About 2.3 gpg. One grain per gallon equals 17.1 mg/L, so 40 mg/L divided by 17.1 gives 2.3.

Has the Cullman water system had EPA violations?

EPA records show no health-based violations for Cullman County Water Department since 2016.

Nearby cities

All 91 cities in Alabama

Hardness data: TapWaterData US Water Hardness (county estimate, July 4, 2026), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.