Greenville, SC water hardness

Tap water hardness
8mg/L
0.5gpg
Soft

Reported by Greenville Water (2310001) · August 2025

SC typical
32 mg/L
EPA health violations since 2016
0
Data
Utility report

The water in Greenville carries roughly 8 mg/L of dissolved calcium and magnesium, or 0.5 grains per gallon. That is soft water. The number comes from Greenville Water (2310001), dated August 2025.

Greenville on the hardness scale, with nearby cities
060120180240300360+SC typical 32Wade Hampton: 8 mg/LWade Hampton 8Gantt: 8 mg/LGantt 8Sans Souci: 8 mg/LSans Souci 8Mauldin: 8 mg/LMauldin 8Parker: 8 mg/LParker 8Taylors: 8 mg/LTaylors 8Welcome: 8 mg/LWelcome 8Berea: 8 mg/LBerea 8Five Forks: 8 mg/LFive Forks 8Simpsonville: 8 mg/LSimpsonville 8Greenville 8mg/L as calcium carbonate060120180240300360+SC 32Wade Hampton: 8 mg/LWade Hampt. 8Gantt: 8 mg/LGantt 8Sans Souci: 8 mg/LSans Souci 8Mauldin: 8 mg/LMauldin 8Parker: 8 mg/LParker 8Taylors: 8 mg/LTaylors 88 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Greenville sits 24 mg/L below the typical South Carolina figure of 32. None of the 10 nearest cities we track has harder water.

What 8 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 8 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 Greenville's water system

Greenville Water (Sc2310001) · PWSID SC2310001

No health-based violations since 2016

Serves about 426,057 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
1

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 Greenville water hard?

No. It measures about 8 mg/L (0.5 grains per gallon), which the USGS classes as soft.

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

About 0.5 gpg. One grain per gallon equals 17.1 mg/L, so 8 mg/L divided by 17.1 gives 0.5.

Has the Greenville water system had EPA violations?

EPA records show no health-based violations for Greenville Water (Sc2310001) since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 58 cities in South Carolina

Hardness data: TapWaterData US Water Hardness (utility report, August 25, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.