College Park, GA water hardness

Tap water hardness
28mg/L
1.6gpg
Soft

Reported by Atlanta · October 2025

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

Tap water in College Park has about 28 mg/L of hardness, which is 1.6 grains per gallon. On the USGS scale that counts as soft. The number comes from Atlanta, dated October 2025.

College Park on the hardness scale, with nearby cities
060120180240300360+GA typical 28Gresham Park: 18 mg/LGresham Park 18Panthersville: 18 mg/LPanthersville 18Druid Hills: 18 mg/LDruid Hills 18Atlanta: 24 mg/LAtlanta 24Riverdale: 27 mg/LRiverdale 27Morrow: 27 mg/LMorrow 27East Point: 28 mg/LEast Point 28Hapeville: 28 mg/LHapeville 28Union City: 28 mg/LUnion City 28South Fulton: 28 mg/LSouth Fulton 28College Park 28mg/L as calcium carbonate060120180240300360+GA 28Riverdale: 27 mg/LRiverdale 27Morrow: 27 mg/LMorrow 27East Point: 28 mg/LEast Point 28Hapeville: 28 mg/LHapeville 28Union City: 28 mg/LUnion City 28South Fulton: 28 mg/LSouth Fult. 2828 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

College Park sits close to the typical Georgia figure of 28 mg/L. None of the 10 nearest cities we track has harder water. The range nearby runs from 18 mg/L in Gresham Park to 28 in East Point.

What 28 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 28 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 College Park's water system

College Park · PWSID GA1210002

No health-based violations since 2016

Serves about 20,382 people from surface water.

Health-based
0
Monitoring or reporting
7
Open now
4

EPA lists College Park as the system serving College Park. The hardness figure above comes from a different system's report, which TapWaterData uses for College Park.

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 College Park water hard?

No. It measures about 28 mg/L (1.6 grains per gallon), which the USGS classes as soft.

What is the water hardness in College Park in grains per gallon?

About 1.6 gpg. One grain per gallon equals 17.1 mg/L, so 28 mg/L divided by 17.1 gives 1.6.

Has the College Park water system had EPA violations?

EPA records show no health-based violations for College Park since 2016. There were also 7 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, October 7, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.