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

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

Glassboro Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

6.4

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

90 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 Glassboro, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Glassboro	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 Glassboro compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Glassboro, New Jersey	≈ 120–179 mg/L	105.5 ppt	🟠 Hard	reservoir
Sewell, New Jersey	≈ 120–179 mg/L	11.6 ppt	🟠 Hard	reservoir
Williamstown, New Jersey	≈ 120–179 mg/L	19.6 ppt	🟠 Hard	reservoir
Woodbury, New Jersey	≈ 120–179 mg/L	14 ppt	🟠 Hard	reservoir
Sicklerville, New Jersey	≈ 120–179 mg/L	11.8 ppt	🟠 Hard	groundwater

National Benchmark

How Glassboro compares to the USA average

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

Local geology and source profile

Source: ReservoirTDS: 90 mg/LpH: 6.4

Glassboro Water Department (One South Main Street, Glassboro, NJ 08028; tel. 856-863-3612) serves the borough of Glassboro in Gloucester County, New Jersey. The utility sources all its drinking water from groundwater, drawing from three aquifer systems: the Cohansey, Potomac/Raritan/Magothy, and Mount Laurel formations within New Jersey's Inner Coastal Plain. Water undergoes conventional treatment including chlorine and hypochlorite disinfection and filtration at local facilities before distribution to the borough's residents. Annual Consumer Confidence Reports are published in compliance with EPA and NJDEP requirements.

The supply draws from New Jersey's Inner Coastal Plain aquifer system spanning Gloucester County, recharged by local precipitation infiltrating sandy soils. Key formations include the unconsolidated Cohansey Sand (Miocene) and the Cretaceous Potomac-Raritan-Magothy aquifer complex, overlain by the Mount Laurel Sand (Cretaceous). This limestone-influenced sedimentary geology imparts a hard character to the groundwater through natural dissolution of calcium- and magnesium-rich carbonate minerals — calcite and dolomite — from ancient coastal deposits, yielding moderately mineralized to hard water typical of the region's aquifer chemistry.

At hard levels, scale buildup from calcium and magnesium deposits accelerates in hot water systems, significantly affecting water heaters, dishwashers, washing machines, and faucets, with reduced efficiency and shortened lifespan. White residue on fixtures and spots on glassware are common. Regular maintenance — vinegar descaling, scale-inhibiting filters, or a water softener — is recommended to prevent clogs, extend appliance life, and improve soap efficiency. The 2023 Consumer Confidence Report indicates compliance with EPA standards for most parameters; conventional filtration and chlorination address microbial risks, and the utility monitors for disinfection byproducts and source vulnerabilities per SWAP assessments.

Geology & Source: NJ Inner Coastal Plain — Cohansey Sand (Miocene), Potomac-Raritan-Magothy complex (Cretaceous), Mount Laurel Sand (Cretaceous); calcite and dolomite in sedimentary deposits dissolve calcium and magnesium; hard groundwater in Gloucester County

Other New Jersey Water Reports

Sewell

≈ 120–179 mg/L

🟠 Hard

Williamstown

≈ 120–179 mg/L

🟠 Hard

Woodbury

≈ 120–179 mg/L

🟠 Hard

Sicklerville

≈ 120–179 mg/L

🟠 Hard

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Frequently Asked Questions

Is Glassboro's water safe to drink?

Yes. Glassboro'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 Glassboro?

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

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