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

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

Eltingville Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.5

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

140.3 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 Eltingville, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Eltingville	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 Eltingville compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Eltingville, New York	≈ 120–179 mg/L	4.1 ppt	🟠 Hard	reservoir
Great Kills, New York	≈ 0–60 mg/L	4.2 ppt	🟢 Soft	reservoir
Woodrow, New York	≈ 120–179 mg/L	4.3 ppt	🟠 Hard	reservoir
Staten Island, New York	≈ 120–179 mg/L	5 ppt	🟠 Hard	reservoir
Rossville, New York	≈ 0–60 mg/L	3.7 ppt	🟢 Soft	reservoir

National Benchmark

How Eltingville compares to the USA average

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

Local geology and source profile

Source: ReservoirTDS: 140.3 mg/LpH: 7.5

Eltingville, New York, receives its water from the New York City water system, managed by the New York City Department of Environmental Protection (DEP). This supply originates in the Catskill and Delaware watersheds, feeding into major reservoirs like the Ashokan and Pepacton. After treatment at regional facilities, the water travels through the municipal network to reach Eltingville residents on Staten Island.

The water's journey begins in the Catskill Mountains and Delaware River basin. Here, surface and groundwater interact with ancient Paleozoic-age limestone and dolomite formations. These carbonate rocks naturally dissolve calcium and magnesium, minerals that give the supply its moderately mineralized character and contribute to its hardness.

Homeowners in Eltingville might notice slight spotting on dishes or mild soap scum on fixtures. Over time, scale can accumulate in appliances like kettles and water heaters, impacting their efficiency. Flushing water heaters annually and cleaning aerators can help manage these effects. While a water softener is an option for those prioritizing appliance longevity or appearance, it's not necessary for safe consumption or basic use. The NYC DEP provides detailed annual reports on water quality, available via their website or by contacting NYC311.

Geology & Source: Paleozoic limestone and dolomite formations; carbonate bedrock causes moderate hardness

Other New York Water Reports

Great Kills

≈ 0–60 mg/L

🟢 Soft

Woodrow

≈ 120–179 mg/L

🟠 Hard

Staten Island

≈ 120–179 mg/L

🟠 Hard

Rossville

≈ 0–60 mg/L

🟢 Soft

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 Eltingville's water safe to drink?

Yes. Eltingville'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 Eltingville?

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

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