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

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

Cranford Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.9

neutral = 7.0

Lead

0.006 mg/L

✓ Below action level

TDS

276.2 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 Cranford, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Cranford	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 Cranford compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Cranford, New Jersey	≈ 120–179 mg/L	9.9 ppt	🟠 Hard	groundwater
Clark, New Jersey	≈ 120–179 mg/L	8.8 ppt	🟠 Hard	reservoir
Roselle Park, New Jersey	≈ 120–179 mg/L	5.8 ppt	🟠 Hard	reservoir
Roselle, New Jersey	≈ 120–179 mg/L	5.8 ppt	🟠 Hard	reservoir
Westfield, New Jersey	≈ 120–179 mg/L	6.7 ppt	🟠 Hard	reservoir

National Benchmark

How Cranford compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Cranford	≈ 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 Cranford's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 276.2 mg/LpH: 7.9

Cranford, New Jersey (ZIP 07016) is served by NJ American Water – Raritan, a major regional utility providing water service across Union County and surrounding areas. The system draws from the Raritan River watershed and associated groundwater sources, with treatment facilities managing both surface and groundwater supplies to serve the community.

The Raritan River watershed drains portions of central New Jersey through Cretaceous and Tertiary geological formations. The underlying aquifer system consists of marine sediments and glacial deposits containing significant concentrations of calcium and magnesium minerals. This hydrogeological setting produces a hard water supply characteristic of the region, influenced by the dissolution of limestone and other carbonate-bearing rock formations encountered as water percolates through the subsurface.

At the hard water level, Cranford residents may experience scale buildup on fixtures, reduced soap effectiveness, and potential impacts on water heaters and other appliances. A water softener is recommended to mitigate these effects and extend the lifespan of plumbing infrastructure and household appliances. Tap water in Cranford has been documented to contain contaminants above EPA health-based MCLGs, including PFOA, uranium, gross alpha activity, PFOS, and bromodichloromethane. Residents are advised to review detailed utility reports and consider certified water filtration for additional protection. NJ American Water provides annual Consumer Confidence Reports detailing treatment processes and water quality compliance data.

Geology & Source: Raritan River watershed; Cretaceous and Tertiary aquifer formations with glacial deposits overlying marine sediments rich in calcium and magnesium — moderately hard to hard water typical of northern New Jersey

Other New Jersey Water Reports

Clark

≈ 120–179 mg/L

🟠 Hard

Roselle Park

≈ 120–179 mg/L

🟠 Hard

Roselle

≈ 120–179 mg/L

🟠 Hard

Westfield

≈ 120–179 mg/L

🟠 Hard

Report an Issue

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 Cranford's water safe to drink?

Yes. Cranford'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 Cranford?

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

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