Cumming, GA water hardness

Tap water hardness
20mg/L
1.2gpg
Soft

Reported by Forsyth CO. Water & Sewer · August 2025

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

Cumming water measures 20 mg/L (1.2 gpg) of hardness, soft by USGS standards. The number comes from Forsyth CO. Water & Sewer, dated August 2025.

Cumming on the hardness scale, with nearby cities
060120180240300360+GA typical 28Oakwood: 15 mg/LOakwood 15Gainesville: 15 mg/LGainesville 15Milton: 20 mg/LMilton 20Lawrenceville: 21 mg/LLawrenceville 21Hoschton: 21 mg/LHoschton 21Canton: 23 mg/LCanton 23Woodstock: 26 mg/LWoodstock 26Sandy Springs: 28 mg/LSandy Springs 28Alpharetta: 31 mg/LAlpharetta 31Braselton: 40 mg/LBraselton 40Cumming 20mg/L as calcium carbonate060120180240300360+GA 28Oakwood: 15 mg/LOakwood 15Gainesville: 15 mg/LGainesville 15Milton: 20 mg/LMilton 20Lawrenceville: 21 mg/LLawrencevi. 21Alpharetta: 31 mg/LAlpharetta 31Braselton: 40 mg/LBraselton 4020 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Cumming sits close to the typical Georgia figure of 28 mg/L. Of the 10 nearest cities we track, 2 have softer water and 7 have harder. The range nearby runs from 15 mg/L in Oakwood to 40 in Braselton.

What 20 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 20 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 Cumming's water system

Forsyth CO. Water & Sewer · PWSID GA1170050

No health-based violations since 2016

Serves about 161,200 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 Cumming water hard?

No. It measures about 20 mg/L (1.2 grains per gallon), which the USGS classes as soft.

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

About 1.2 gpg. One grain per gallon equals 17.1 mg/L, so 20 mg/L divided by 17.1 gives 1.2.

Has the Cumming water system had EPA violations?

EPA records show no health-based violations for Forsyth CO. Water & Sewer 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, August 18, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.