How does Bayonne's water compare to the national average?

The USA national average is 151 mg/L. Bayonne (≈ 120–179 mg/L) is 1 mg/L softer than average.

Bayonne Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.3

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

493.2 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Bayonne, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Bayonne	Soft Water City	Efficiency Loss
Kettle	6.8 yrs	8.5 yrs	-20%
Washing Machine	9.6 yrs	12 yrs	-20%
Water Heater	12 yrs	15 yrs	-20%

Regional Water Comparison

How Bayonne compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Bayonne, New Jersey	≈ 120–179 mg/L	13.2 ppt	🟠 Hard	reservoir
Port Richmond, New York	≈ 120–179 mg/L	4.1 ppt	🟠 Hard	reservoir
Mariners Harbor, New York	31 mg/L	7.7 ppt	🟢 Soft	reservoir
Graniteville, New York	≈ 120–179 mg/L	3.9 ppt	🟠 Hard	reservoir
Emerson Hill, New York	≈ 120–179 mg/L	4.1 ppt	🟠 Hard	reservoir

National Benchmark

How Bayonne compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Bayonne	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Bayonne's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 493.2 mg/LpH: 8.3

The City of Bayonne Municipal Utilities Authority (Bayonne MUA) provides water to approximately 63,000 residents in Bayonne, Hudson County, New Jersey. The utility purchases treated surface water primarily from the Hackensack River and associated reservoirs such as the Wanaque Reservoir and DeForest Lake system, supplied by providers including United Water New Jersey (now part of Veolia) and New Jersey American Water. Treatment occurs at regional plants including the Little Falls and Wanaque treatment facilities, with final disinfection using hypochlorite before distribution through Bayonne's network.

The water originates from the Hackensack River Watershed, spanning northern New Jersey's glaciated highlands and piedmont. Key formations include the Passaic Formation (Triassic sandstone and shale) and Brunswick Group, with limestone outcrops in the Watchung Mountains contributing dissolved minerals. Surface impoundments capture runoff rather than deep aquifer sources, imparting a moderately mineralized character through contact with carbonate-rich soils and sedimentary rocks — though dilution from rainfall and reservoir storage moderates the mineral load compared to groundwater-heavy southern New Jersey supplies.

Moderately hard water causes moderate scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan over time. Faucet aerators and showerheads may clog, and soap lathering decreases, potentially causing dry skin or dull hair. Annual descaling of appliances and vinegar soaks for fixtures are recommended. A water softener is advised for households noticing spotting on dishes or film on glassware. Bayonne's water scores 80/100 for quality, with two contaminants exceeding EPA health guidelines but zero violations reported; pH is typically 7–8, treatment includes filtration, coagulation, and chlorination, and the NJDEP SWAP report rates sources as medium susceptibility for microbes and nitrates due to urban watershed pressures.

Geology & Source: Hackensack River Watershed; Quaternary glacial deposits over Cretaceous Potomac Group sandstone and shale; Passaic Formation Triassic sandstone and shale; limestone outcrops in Watchung Mountains contribute calcium and magnesium — moderately

Other New Jersey Water Reports

Port Richmond

≈ 120–179 mg/L

🟠 Hard

Mariners Harbor

31 mg/L

🟢 Soft

Graniteville

≈ 120–179 mg/L

🟠 Hard

Emerson Hill

≈ 120–179 mg/L

🟠 Hard

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Bayonne's water safe to drink?

Yes. Bayonne's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Bayonne?

At ≈ 120–179 mg/L (Hard), Bayonne's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.

How does Bayonne compare to the USA average?

The USA national average is 151 mg/L. Bayonne (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Bayonne is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.