Glassboro, NJ water hardness

Tap water hardness
37mg/L
2.1gpg
SoftCounty estimate

County estimate from 829 water samples in Gloucester County · July 2026

NJ typical
80 mg/L
EPA health violations since 2016
1
Data
County estimate

Water samples from around Glassboro put hardness at about 37 mg/L (2.1 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 829 samples taken across Gloucester County, mostly wells and streams, not a test of Glassboro's treated tap water. One more reason for caution: EPA lists Glassboro's water system as using surface water, which is often softer than the wells behind the county figure.

Glassboro on the hardness scale, with nearby cities
060120180240300360+NJ typical 80Williamstown: 22 mg/LWilliamstown 22Sicklerville: 43 mg/LSicklerville 43Berlin: 58 mg/LBerlin 58Clementon: 66 mg/LClementon 66Glendora: 82 mg/LGlendora 82Stratford: 82 mg/LStratford 82Lindenwold: 82 mg/LLindenwold 82Runnemede: 82 mg/LRunnemede 82Somerdale: 82 mg/LSomerdale 82Bellmawr: 82 mg/LBellmawr 82Glassboro 37mg/L as calcium carbonate060120180240300360+NJ 80Williamstown: 22 mg/LWilliamsto. 22Sicklerville: 43 mg/LSicklervil. 43Clementon: 66 mg/LClementon 66Glendora: 82 mg/LGlendora 82Stratford: 82 mg/LStratford 82Lindenwold: 82 mg/LLindenwold 8237 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 37 mg/L, Glassboro is 43 mg/L below the typical New Jersey figure of 80. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 22 mg/L in Williamstown to 82 in Glendora.

What 37 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 37 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 Glassboro's water system

Glassboro Water Department · PWSID NJ0806001

1 health-based violation since 2016

Serves about 24,244 people from surface water.

Health-based
1
Monitoring or reporting
22
Open now
2

EPA lists this system as serving Glassboro.

20162017201820192020202120222023202420252026Lead and Copper Rule'16'18'20'22'24'26Lead and Copper Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Lead and Copper Rulecorrosion control and lead sampling12020Resolved

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 Glassboro water hard?

No. It measures about 37 mg/L (2.1 grains per gallon), which the USGS classes as soft.

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

About 2.1 gpg. One grain per gallon equals 17.1 mg/L, so 37 mg/L divided by 17.1 gives 2.1.

Has the Glassboro water system had EPA violations?

EPA records show 1 health-based violation for Glassboro Water Department since 2016, involving Lead and Copper Rule. There were also 22 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 227 cities in New Jersey

Hardness data: TapWaterData US Water Hardness (county estimate, July 4, 2026), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.