Meridian, MS water hardness

Tap water hardness
15mg/L
0.9gpg
SoftCounty estimate

County estimate from 30 water samples in Lauderdale County · July 2026

MS typical
38 mg/L
EPA health violations since 2016
0
Data
County estimate

Water samples from around Meridian put hardness at about 15 mg/L (0.9 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 30 samples taken across Lauderdale County, mostly wells and streams, not a test of Meridian's treated tap water.

Meridian on the hardness scale, with nearby cities
060120180240300360+MS typical 38Bay St. Louis: 4 mg/LBay St. Louis 4Jackson: 38 mg/LJackson 38Byram: 38 mg/LByram 38Clinton: 38 mg/LClinton 38Columbus: 51 mg/LColumbus 51Oxford: 77 mg/LOxford 77Meridian 15mg/L as calcium carbonate060120180240300360+MS 38Bay St. Louis: 4 mg/LBay St. Lo. 4Jackson: 38 mg/LJackson 38Byram: 38 mg/LByram 38Clinton: 38 mg/LClinton 38Columbus: 51 mg/LColumbus 51Oxford: 77 mg/LOxford 7715 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Meridian sits 23 mg/L below the typical Mississippi figure of 38. Of the 6 nearest cities we track, 1 has softer water and 5 have harder. The range nearby runs from 4 mg/L in Bay St. Louis to 77 in Oxford.

What 15 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 15 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 Meridian's water system

City of Meridian · PWSID MS0380005

No health-based violations since 2016

Serves about 34,466 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

EPA lists this system as serving Meridian.

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 Meridian water hard?

No. It measures about 15 mg/L (0.9 grains per gallon), which the USGS classes as soft.

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

About 0.9 gpg. One grain per gallon equals 17.1 mg/L, so 15 mg/L divided by 17.1 gives 0.9.

Has the Meridian water system had EPA violations?

EPA records show no health-based violations for City of Meridian since 2016.

Nearby cities

All 7 cities in Mississippi

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.