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Ridgefield Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.2

neutral = 7.0

Lead

0.001 mg/L

✓ Below action level

TDS

56.2 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 Ridgefield, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn RidgefieldSoft Water CityEfficiency 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 Ridgefield compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Ridgefield, New Jersey≈ 120–179 mg/L5 ppt🟠 Hardreservoir
Palisades Park, New Jersey≈ 120–179 mg/L10.6 ppt🟠 Hardreservoir
Fairview, New Jersey≈ 120–179 mg/L12.5 ppt🟠 Hardreservoir
Cliffside Park, New Jersey≈ 120–179 mg/L8.9 ppt🟠 Hardreservoir
Ridgefield Park, New Jersey≈ 180+ mg/L5 ppt🔴 Very Hardreservoir

National Benchmark

How Ridgefield compares to the USA average

BenchmarkHardnessAppliance Risk
Ridgefield≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Ridgefield's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 56.2 mg/LpH: 7.2

The Ridgefield Borough Water Department supplies drinking water to about 11,000 residents in Bergen County, New Jersey. Their supply comes mainly from the Hackensack River, drawing from the Hackensack Meadowlands Area. This surface water is supplemented by groundwater from local wells that tap into the Potomac-Raritan-Magothy aquifer. All water is treated at the Ridgefield Water Treatment Plant before being distributed throughout the borough. The Hackensack River watershed itself covers 500 square miles of northern New Jersey, flowing through areas shaped by glaciers in the Piedmont and Coastal Plain.

The area's geology is characterized by Quaternary glacial deposits overlaying Cretaceous-Tertiary Potomac Group formations. These latter formations contain the Potomac-Raritan-Magothy aquifer, a significant source of confined groundwater composed of sands and gravels. This geological makeup results in a hard water profile. As water flows through and sits within these sedimentary layers and interacts with limestone and dolomite minerals upstream, it picks up dissolved solids and minerals, increasing its hardness.

Homeowners in Ridgefield often notice scale buildup in appliances like pipes, water heaters, and dishwashers, which can reduce their efficiency and shorten their lifespan. To combat this, regular system flushing and using vinegar for descaling fixtures are common practices. Installing a water softener is highly recommended to reduce issues such as spotting on glassware, soap scum, and the drying effects on skin and hair. These measures help extend the life of equipment by years and maintain optimal performance. The water quality meets EPA standards, with pH typically between 7.0 and 8.5.

Geology & Source: Hackensack River watershed & Potomac-Raritan-Magothy aquifer; Quaternary glacial sediments & Tertiary sands/clays; limestone/dolomite influences cause hard water.

Other New Jersey Water Reports

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Frequently Asked Questions

Is Ridgefield's water safe to drink?
Yes. Ridgefield'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 Ridgefield?
At ≈ 120–179 mg/L (Hard), Ridgefield'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 Ridgefield compare to the USA average?
The USA national average is 151 mg/L. Ridgefield (≈ 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 Ridgefield 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

pH

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.