Jackson, TN water hardness

Tap water hardness
19mg/L
1.1gpg
SoftCounty estimate

County estimate from 586 water samples in Madison County · July 2026

TN typical
89 mg/L
EPA health violations since 2016
0
Data
County estimate

Water samples from around Jackson put hardness at about 19 mg/L (1.1 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 586 samples taken across Madison County, mostly wells and streams, not a test of Jackson's treated tap water.

Jackson on the hardness scale, with nearby cities
060120180240300360+TN typical 89Bartlett: 36 mg/LBartlett 36Memphis: 40 mg/LMemphis 40Collierville: 51 mg/LCollierville 51Germantown: 63 mg/LGermantown 63Clarksville: 71 mg/LClarksville 71Ashland City: 89 mg/LAshland City 89Brentwood: 89 mg/LBrentwood 89Franklin: 98 mg/LFranklin 98Columbia: 121 mg/LColumbia 121Spring Hill: 138 mg/LSpring Hill 138Jackson 19mg/L as calcium carbonate060120180240300360+TN 89Bartlett: 36 mg/LBartlett 36Memphis: 40 mg/LMemphis 40Collierville: 51 mg/LColliervil. 51Germantown: 63 mg/LGermantown 63Clarksville: 71 mg/LClarksville 71Columbia: 121 mg/LColumbia 12119 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 19 mg/L, Jackson is 70 mg/L below the typical Tennessee figure of 89. None of the 10 nearest cities we track has softer water. The range nearby runs from 36 mg/L in Bartlett to 138 in Spring Hill.

What 19 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 19 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 Jackson's water system

Jackson Water System · PWSID TN0000299

No health-based violations since 2016

Serves about 91,111 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

EPA lists this system as serving Jackson.

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 Jackson water hard?

No. It measures about 19 mg/L (1.1 grains per gallon), which the USGS classes as soft.

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

About 1.1 gpg. One grain per gallon equals 17.1 mg/L, so 19 mg/L divided by 17.1 gives 1.1.

Has the Jackson water system had EPA violations?

EPA records show no health-based violations for Jackson Water System since 2016.

Nearby cities

All 44 cities in Tennessee

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.