How hard is the water in Uniontown, PA?

Tap water hardness
107mg/L
6.3gpg
Moderately hard

Reported by PA-American Water- Uniontown · September 2025

PA typical
127 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

Uniontown water measures 107 mg/L (6.3 gpg) of hardness, moderately hard by USGS standards. The number comes from PA-American Water- Uniontown, dated September 2025.

Uniontown on the hardness scale, with nearby cities
060120180240300360+PA typical 127Connellsville: 47 mg/LConnellsville 47Greensburg: 57 mg/LGreensburg 57Jeannette: 66 mg/LJeannette 66Monessen: 102 mg/LMonessen 102Clairton: 102 mg/LClairton 102Jefferson Hills: 102 mg/LJefferson Hills 102Pleasant Hills: 102 mg/LPleasant Hills 102West Mifflin: 102 mg/LWest Mifflin 102Duquesne: 102 mg/LDuquesne 102Washington: 102 mg/LWashington 102Uniontown 107mg/L as calcium carbonate060120180240300360+PA 127Connellsville: 47 mg/LConnellsvi. 47Greensburg: 57 mg/LGreensburg 57Jeannette: 66 mg/LJeannette 66Monessen: 102 mg/LMonessen 102Clairton: 102 mg/LClairton 102Jefferson Hills: 102 mg/LJefferson. 102107 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Uniontown sits 20 mg/L below the typical Pennsylvania figure of 127. None of the 10 nearest cities we track has harder water. The range nearby runs from 47 mg/L in Connellsville to 102 in Monessen.

What 107 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

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

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Uniontown

3 people × 75 gallons a day × 6.3 gpg = 1,408 grains a day. A 24,000-grain unit regenerates about every 17 days.

Size it for your household

EPA record for Uniontown's water system

PA-American Water- Uniontown · PWSID PA5260020

No health-based violations since 2016

Serves about 23,125 people from surface water.

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 Uniontown water hard?

Somewhat. It measures about 107 mg/L (6.3 grains per gallon), which the USGS classes as moderately hard.

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

About 6.3 gpg. One grain per gallon equals 17.1 mg/L, so 107 mg/L divided by 17.1 gives 6.3.

What size water softener do I need in Uniontown?

For 3 people using 75 gallons each per day, 6.3 gpg works out to about 1,408 grains a day. A 24,000-grain softener covers that with a regeneration about every 17 days.

Has the Uniontown water system had EPA violations?

EPA records show no health-based violations for PA-American Water- Uniontown since 2016.

Nearby cities

All 172 cities in Pennsylvania

Hardness data: TapWaterData US Water Hardness (utility report, September 16, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.