Harrisburg, NC water hardness

Tap water hardness
41mg/L
2.4gpg
Soft

Reported by Harrisburg, Town of · July 2025

NC typical
31 mg/L
EPA health violations since 2016
3
Data
Utility report

The water in Harrisburg carries roughly 41 mg/L of dissolved calcium and magnesium, or 2.4 grains per gallon. That is soft water. The number comes from Harrisburg, Town of, dated July 2025.

Harrisburg on the hardness scale, with nearby cities
060120180240300360+NC typical 31Stallings: 30 mg/LStallings 30Indian Trail: 30 mg/LIndian Trail 30Mint Hill: 31 mg/LMint Hill 31Charlotte: 31 mg/LCharlotte 31Matthews: 31 mg/LMatthews 31Huntersville: 31 mg/LHuntersville 31Davidson: 31 mg/LDavidson 31Concord: 34 mg/LConcord 34Midland: 34 mg/LMidland 34Kannapolis: 58 mg/LKannapolis 58Harrisburg 41mg/L as calcium carbonate060120180240300360+NC 31Mint Hill: 31 mg/LMint Hill 31Charlotte: 31 mg/LCharlotte 31Matthews: 31 mg/LMatthews 31Concord: 34 mg/LConcord 34Midland: 34 mg/LMidland 34Kannapolis: 58 mg/LKannapolis 5841 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 41 mg/L, Harrisburg is close to the typical North Carolina figure of 31 mg/L. Of the 10 nearest cities we track, 9 have softer water and 1 has harder. The range nearby runs from 30 mg/L in Stallings to 58 in Kannapolis.

What 41 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 41 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 Harrisburg's water system

Harrisburg, Town of · PWSID NC0113025

3 health-based violations since 2016

Serves about 20,549 people from surface water.

Health-based
3
Monitoring or reporting
0
Open now
0
20162017201820192020202120222023202420252026Total trihalomethanes (TTHM)'16'18'20'22'24'26Total trihalomethanes (TTHM)
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total trihalomethanes (TTHM)a disinfection byproduct32018–2021Resolved

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 Harrisburg water hard?

No. It measures about 41 mg/L (2.4 grains per gallon), which the USGS classes as soft.

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

About 2.4 gpg. One grain per gallon equals 17.1 mg/L, so 41 mg/L divided by 17.1 gives 2.4.

Has the Harrisburg water system had EPA violations?

EPA records show 3 health-based violations for Harrisburg, Town of since 2016, involving Total trihalomethanes (TTHM).

Nearby cities

All 101 cities in North Carolina

Hardness data: TapWaterData US Water Hardness (utility report, July 3, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.