How does Union City's water compare to the national average?

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

Union City Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.2

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

460.9 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 Union City, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Union City	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 Union City compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Union City, New Jersey	≈ 120–179 mg/L	12.8 ppt	🟠 Hard	reservoir
Weehawken, New Jersey	≈ 120–179 mg/L	6.2 ppt	🟠 Hard	reservoir
West New York, New Jersey	≈ 120–179 mg/L	6.5 ppt	🟠 Hard	reservoir
Guttenberg, New Jersey	72.5 mg/L	7 ppt	🟡 Moderately Hard	reservoir
North Bergen, New Jersey	≈ 120–179 mg/L	9 ppt	🟠 Hard	reservoir

National Benchmark

How Union City compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Union City	≈ 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 Union City's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 460.9 mg/LpH: 8.2

Union City's water is supplied by the North Hudson Sewerage Authority (NHSA), serving Hudson County and parts of surrounding areas with a population exceeding 60,000. The primary sources are surface water from the Hackensack River and reservoirs in the region, managed through intake and treatment facilities including the Calvopina Water Treatment Plant, which applies filtration, disinfection, and basic conditioning before distribution via extensive piping networks.

The Hackensack River watershed spans over 500 square miles across New Jersey, encompassing Triassic sedimentary rocks such as the Boonton and Passaic Formations — red sandstones and shales deposited during the Mesozoic era. Glacial deposits from the Pleistocene overlay these, influencing infiltration. This geology imparts a moderately mineralized profile through natural leaching of ions from weathered bedrock, resulting in a moderately hard supply without aggressive corrosivity or extreme scaling potential.

Moderately hard water promotes moderate scale buildup in dishwashers, washing machines, and water heaters, reducing efficiency over time and spotting glassware. Faucet aerators and coffee makers may require occasional cleaning; monthly vinegar descaling and detergent boosters help. A water softener is optional but recommended for households noticing soap scum or seeking enhanced appliance longevity. Water meets federal and state standards for pH (typically 7–8) with lead levels well below the 15 ppb action level and copper compliance assured through corrosion control; no specific PFAS exceedances noted in recent reports.

Geology & Source: Hackensack River watershed; Triassic Newark Basin sandstone and shale (Boonton and Passaic Formations) with Pleistocene glacial till — mineral leaching from weathered bedrock produces moderately hard water

Other New Jersey Water Reports

Weehawken

≈ 120–179 mg/L

🟠 Hard

West New York

≈ 120–179 mg/L

🟠 Hard

Guttenberg

72.5 mg/L

🟡 Moderately Hard

North Bergen

≈ 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 Union City's water safe to drink?

Yes. Union City'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 Union City?

At ≈ 120–179 mg/L (Hard), Union City'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 Union City compare to the USA average?

The USA national average is 151 mg/L. Union City (≈ 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 Union City 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.