Alpharetta, GA water hardness

Tap water hardness
31mg/L
1.8gpg
Soft

Reported by North Fulton County · February 2025

GA typical
28 mg/L
EPA health violations since 2016
0
Data
Utility report

The water in Alpharetta carries roughly 31 mg/L of dissolved calcium and magnesium, or 1.8 grains per gallon. That is soft water. The number comes from North Fulton County, dated February 2025.

Alpharetta on the hardness scale, with nearby cities
060120180240300360+GA typical 28Tucker: 18 mg/LTucker 18North Druid Hills: 18 mg/LNorth Druid Hills 18Clarkston: 18 mg/LClarkston 18Milton: 20 mg/LMilton 20Cumming: 20 mg/LCumming 20Lawrenceville: 21 mg/LLawrenceville 21Canton: 23 mg/LCanton 23Woodstock: 26 mg/LWoodstock 26Sandy Springs: 28 mg/LSandy Springs 28Marietta: 40 mg/LMarietta 40Alpharetta 31mg/L as calcium carbonate060120180240300360+GA 28Tucker: 18 mg/LTucker 18Milton: 20 mg/LMilton 20Cumming: 20 mg/LCumming 20Canton: 23 mg/LCanton 23Woodstock: 26 mg/LWoodstock 26Sandy Springs: 28 mg/LSandy Spri. 2831 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Alpharetta sits close to the typical Georgia figure of 28 mg/L. Of the 10 nearest cities we track, 9 have softer water and 1 has harder. The range nearby runs from 18 mg/L in Tucker to 40 in Marietta.

What 31 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 31 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 Alpharetta's water system

North Fulton County · PWSID GA1210005

No health-based violations since 2016

Serves about 434,517 people from surface water.

Health-based
0
Monitoring or reporting
3
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 Alpharetta water hard?

No. It measures about 31 mg/L (1.8 grains per gallon), which the USGS classes as soft.

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

About 1.8 gpg. One grain per gallon equals 17.1 mg/L, so 31 mg/L divided by 17.1 gives 1.8.

Has the Alpharetta water system had EPA violations?

EPA records show no health-based violations for North Fulton County since 2016. There were also 3 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 85 cities in Georgia

Hardness data: TapWaterData US Water Hardness (utility report, February 26, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.