Gastonia, NC water hardness

Tap water hardness
28mg/L
1.6gpg
SoftCounty estimate

County estimate from 180 water samples in Gaston County · July 2026

NC typical
31 mg/L
EPA health violations since 2016
0
Data
County estimate

Water samples from around Gastonia put hardness at about 28 mg/L (1.6 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 180 samples taken across Gaston County, mostly wells and streams, not a test of Gastonia's treated tap water. One more reason for caution: EPA lists Gastonia's water system as using surface water, which is often softer than the wells behind the county figure.

Gastonia on the hardness scale, with nearby cities
060120180240300360+NC typical 31Lincolnton: 14 mg/LLincolnton 14Westport: 14 mg/LWestport 14Shelby: 20 mg/LShelby 20Belmont: 21 mg/LBelmont 21Mount Holly: 23 mg/LMount Holly 23Pineville: 31 mg/LPineville 31Charlotte: 31 mg/LCharlotte 31Huntersville: 31 mg/LHuntersville 31Cornelius: 31 mg/LCornelius 31Davidson: 31 mg/LDavidson 31Gastonia 28mg/L as calcium carbonate060120180240300360+NC 31Lincolnton: 14 mg/LLincolnton 14Shelby: 20 mg/LShelby 20Belmont: 21 mg/LBelmont 21Mount Holly: 23 mg/LMount Holly 23Pineville: 31 mg/LPineville 31Charlotte: 31 mg/LCharlotte 3128 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 28 mg/L, Gastonia is close to the typical North Carolina figure of 31 mg/L. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 14 mg/L in Lincolnton to 31 in Pineville.

What 28 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 28 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 Gastonia's water system

Two Rivers Utilities · PWSID NC0136010

No health-based violations since 2016

Serves about 96,714 people from surface water.

Health-based
0
Monitoring or reporting
0
Open now
0

EPA lists this system as serving Gastonia.

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 Gastonia water hard?

No. It measures about 28 mg/L (1.6 grains per gallon), which the USGS classes as soft.

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

About 1.6 gpg. One grain per gallon equals 17.1 mg/L, so 28 mg/L divided by 17.1 gives 1.6.

Has the Gastonia water system had EPA violations?

EPA records show no health-based violations for Two Rivers Utilities since 2016.

Nearby cities

All 101 cities in North Carolina

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.