Bluffton, SC water hardness

Tap water hardness
44mg/L
2.5gpg
Soft

Reported by Bjw&sa Palm Key (2750031) · October 2025

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

Tap water in Bluffton has about 44 mg/L of hardness, which is 2.5 grains per gallon. On the USGS scale that counts as soft. The number comes from Bjw&sa Palm Key (2750031), dated October 2025.

Bluffton on the hardness scale, with nearby cities
060120180240300360+SC typical 32Summerville: 26 mg/LSummerville 26Beaufort: 41 mg/LBeaufort 41Hardeeville: 43 mg/LHardeeville 43Port Royal: 43 mg/LPort Royal 43Hanahan: 51 mg/LHanahan 51North Charleston: 53 mg/LNorth Charleston 53Charleston: 57 mg/LCharleston 57James Island: 58 mg/LJames Island 58Mount Pleasant: 59 mg/LMount Pleasant 59Hilton Head Island: 98 mg/LHilton Head Island 98Bluffton 44mg/L as calcium carbonate060120180240300360+SC 32Summerville: 26 mg/LSummerville 26Beaufort: 41 mg/LBeaufort 41Hardeeville: 43 mg/LHardeeville 43Port Royal: 43 mg/LPort Royal 43James Island: 58 mg/LJames Isla. 58Hilton Head Island: 98 mg/LHilton Hea. 9844 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Bluffton sits 12 mg/L above the typical South Carolina figure of 32. Of the 10 nearest cities we track, 4 have softer water and 6 have harder. The range nearby runs from 26 mg/L in Summerville to 98 in Hilton Head Island.

What 44 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 44 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 Bluffton's water system

Bjwsa Palm Key (Sc2750031) · PWSID SC2750031

No health-based violations since 2016

Serves about 153 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

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 Bluffton water hard?

No. It measures about 44 mg/L (2.5 grains per gallon), which the USGS classes as soft.

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

About 2.5 gpg. One grain per gallon equals 17.1 mg/L, so 44 mg/L divided by 17.1 gives 2.5.

Has the Bluffton water system had EPA violations?

EPA records show no health-based violations for Bjwsa Palm Key (Sc2750031) since 2016.

Nearby cities

All 58 cities in South Carolina

Hardness data: TapWaterData US Water Hardness (utility report, October 13, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.