Millville, NJ water hardness

Tap water hardness
26mg/L
1.5gpg
SoftCounty estimate

County estimate from 573 water samples in Cumberland County · July 2026

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

Water samples from around Millville put hardness at about 26 mg/L (1.5 gpg), which would be soft on the USGS scale. Treat this as a rough guide: it is the median of 573 samples taken across Cumberland County, mostly wells and streams, not a test of Millville's treated tap water.

Millville on the hardness scale, with nearby cities
060120180240300360+NJ typical 80Somers Point: 21 mg/LSomers Point 21Bargaintown: 21 mg/LBargaintown 21Linwood: 21 mg/LLinwood 21Northfield: 21 mg/LNorthfield 21Williamstown: 22 mg/LWilliamstown 22Vineland: 26 mg/LVineland 26Bridgeton: 26 mg/LBridgeton 26Glassboro: 37 mg/LGlassboro 37Sicklerville: 43 mg/LSicklerville 43Villas: 64 mg/LVillas 64Millville 26mg/L as calcium carbonate060120180240300360+NJ 80Somers Point: 21 mg/LSomers Poi. 21Williamstown: 22 mg/LWilliamsto. 22Vineland: 26 mg/LVineland 26Bridgeton: 26 mg/LBridgeton 26Glassboro: 37 mg/LGlassboro 37Sicklerville: 43 mg/LSicklervil. 4326 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 26 mg/L, Millville is 54 mg/L below the typical New Jersey figure of 80. Of the 10 nearest cities we track, 5 have softer water and 3 have harder. The range nearby runs from 21 mg/L in Somers Point to 64 in Villas.

What 26 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 26 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 Millville's water system

Millville Water Department · PWSID NJ0610001

1 health-based violation since 2016

Serves about 27,500 people from groundwater.

Health-based
1
Monitoring or reporting
107
Open now
1

EPA lists this system as serving Millville.

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 sampling12023Resolved

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 Millville water hard?

No. It measures about 26 mg/L (1.5 grains per gallon), which the USGS classes as soft.

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

About 1.5 gpg. One grain per gallon equals 17.1 mg/L, so 26 mg/L divided by 17.1 gives 1.5.

Has the Millville water system had EPA violations?

EPA records show 1 health-based violation for Millville Water Department since 2016, involving Lead and Copper Rule. There were also 107 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.