Bayonne, NJ water hardness

Tap water hardness
39mg/L
2.3gpg
Soft

Reported by Newark Water Department · October 2025

NJ typical
80 mg/L
EPA health violations since 2016
0
Data
Utility report

Tap water in Bayonne has about 39 mg/L of hardness, which is 2.3 grains per gallon. On the USGS scale that counts as soft. The number comes from Newark Water Department, dated October 2025.

Bayonne on the hardness scale, with nearby cities
060120180240300360+NJ typical 80Newark: 37 mg/LNewark 37Harrison: 37 mg/LHarrison 37Elizabeth: 54 mg/LElizabeth 54Jersey City: 73 mg/LJersey City 73Hoboken: 76 mg/LHoboken 76Linden: 100 mg/LLinden 100Roselle: 100 mg/LRoselle 100Roselle Park: 100 mg/LRoselle Park 100Kearny: 106 mg/LKearny 106Carteret: 108 mg/LCarteret 108Bayonne 39mg/L as calcium carbonate060120180240300360+NJ 80Newark: 37 mg/LNewark 37Harrison: 37 mg/LHarrison 37Elizabeth: 54 mg/LElizabeth 54Jersey City: 73 mg/LJersey City 73Linden: 100 mg/LLinden 100Kearny: 106 mg/LKearny 10639 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 39 mg/L, Bayonne is 41 mg/L below the typical New Jersey figure of 80. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 37 mg/L in Newark to 108 in Carteret.

What 39 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 39 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 Bayonne's water system

City of Bayonne · PWSID NJ0901001

No health-based violations since 2016

Serves about 63,000 people from surface water.

Health-based
0
Monitoring or reporting
7
Open now
0

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

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 Bayonne water hard?

No. It measures about 39 mg/L (2.3 grains per gallon), which the USGS classes as soft.

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

About 2.3 gpg. One grain per gallon equals 17.1 mg/L, so 39 mg/L divided by 17.1 gives 2.3.

Has the Bayonne water system had EPA violations?

EPA records show no health-based violations for City of Bayonne since 2016. There were also 7 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 (utility report, October 5, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.