Paterson Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
8
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
332.9 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · Updated 2026
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 Paterson, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Paterson | 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 Paterson compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Paterson, New Jersey | ≈ 120–179 mg/L | 10.9 ppt | 🟠 Hard | reservoir |
| Woodland Park, New Jersey | 146 mg/L | 87.5 ppt | 🟠 Hard | reservoir |
| Hawthorne, New Jersey | ≈ 120–179 mg/L | 49.3 ppt | 🟠 Hard | groundwater |
| Totowa, New Jersey | ≈ 120–179 mg/L | 29.7 ppt | 🟠 Hard | reservoir |
| Fair Lawn, New Jersey | ≈ 120–179 mg/L | 227.9 ppt | 🟠 Hard | reservoir |
National Benchmark
How Paterson compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Paterson | ≈ 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 Paterson's Water Unique?
Local geology and source profile
Paterson, New Jersey is served by the Passaic Valley Water Commission (PVWC), supplying water to Paterson and surrounding areas in Passaic County. PVWC withdraws primarily from the Passaic River in Totowa, treating it at the Alan C. Levine Little Falls Water Treatment Plant. Backup sources include the Pompton River and Point View Reservoir, sourced from the Ramapo River. Most neighborhoods receive a blend of Little Falls treated water and finished water from the North Jersey District Water Supply Commission's (NJDWSC) Wanaque Water Treatment Plant, drawing from the Wanaque Reservoir. This mixed supply serves over 2 million people across multiple municipalities in the region.
The Passaic River watershed spans northern New Jersey, encompassing Triassic sedimentary rocks of the Newark Basin — including Brunswick Group sandstones and shales — overlain by glacial till. The Wanaque Reservoir lies within the Ramapo River basin, featuring similar Mesozoic formations with Precambrian Highlands bedrock upstream. These geology types impart a moderately mineralized character through mineral dissolution from bedrock and soils, with surface river flows picking up calcium and magnesium ions variably with flow rates and precipitation, yielding harder profiles than purely soft reservoir sources.
Moderately hard water in Paterson can cause moderate scale buildup in water heaters, dishwashers, and coffee makers, reducing efficiency and lifespan. Faucet aerators and showerheads may clog over time. Regular cleaning with vinegar, installing scale filters, and periodic flushing help manage deposits; a water softener is recommended for households noticing soap scum, dry skin, or spotted dishes. Conventional treatment includes coagulation, sedimentation, filtration, and disinfection; third-party testing notes chromium (hexavalent) exceeding health guidelines in PVWC supplies, and the Passaic River has faced historical contamination issues requiring ongoing monitoring.
Geology & Source: Passaic River watershed — Triassic Newark Basin sandstone and shale (Brunswick Group) with glacial till; supplemented by Wanaque Reservoir; mineral dissolution produces moderately hard supply
Other New Jersey Water Reports
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Frequently Asked Questions
Is Paterson's water safe to drink?
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How does Paterson compare to the USA average?
Data Sources & Methodology
Water quality data for Paterson is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
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.
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.
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.
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.
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.
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.