Terrace Heights Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.8

neutral = 7.0

Lead

0.005 mg/L

✓ Below action level

TDS

262.1 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 Terrace Heights, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Terrace Heights	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 Terrace Heights compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Terrace Heights, New York	≈ 120–179 mg/L	6 ppt	🟠 Hard	reservoir
Hollis, New York	≈ 120–179 mg/L	8 ppt	🟠 Hard	reservoir
Hillside, New York	≈ 0–60 mg/L	7.6 ppt	🟢 Soft	reservoir
Fresh Meadows, New York	≈ 0–60 mg/L	7.1 ppt	🟢 Soft	reservoir
Queens Village, New York	≈ 120–179 mg/L	6.7 ppt	🟠 Hard	reservoir

National Benchmark

How Terrace Heights compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Terrace Heights	≈ 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 Terrace Heights's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 262.1 mg/LpH: 7.8

The water supply for Terrace Heights, New York, is managed by the New York City DEP and originates from the Catskill-Delaware watersheds. These sources draw water from the Catskill Mountains region and the headwaters of the Delaware River. The Catskill-Delaware system is a vital part of New York City's water infrastructure, providing a substantial amount of the city's daily water needs.

Geologically, the water comes from the Devonian-era Catskill Formation, primarily composed of sandstone. This type of rock is largely insoluble, meaning it doesn't readily release minerals into the water as it flows through. Consequently, the water derived from this watershed tends to be soft, with minimal dissolved solids contributing to its mineral content.

Because the water is naturally soft, residents may notice less soap scum buildup in bathrooms and laundry. Dishes may come out of the dishwasher with fewer spots, and pipes are less likely to accumulate scale over time. This soft water can also mean that detergents and soaps work more effectively, potentially allowing you to use less product. Homeowners with sensitive plumbing might appreciate the reduced risk of mineral-related clogs.

Geology & Source: Catskill Formation sandstone; insoluble rock yields soft water

Other New York Water Reports

Hollis

≈ 120–179 mg/L

🟠 Hard

Hillside

≈ 0–60 mg/L

🟢 Soft

Fresh Meadows

≈ 0–60 mg/L

🟢 Soft

Queens Village

≈ 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 Terrace Heights's water safe to drink?

Yes. Terrace Heights'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 Terrace Heights?

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

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