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

The USA national average is 151 mg/L. Baldwin (≈ 180+ mg/L) is 189 mg/L harder than average.

Baldwin Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

groundwater

pH Level

8.1

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

365.9 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

very hard180+ mg/LVery Hard · 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 Baldwin, your appliances are currently losing 45% efficiency due to mineral buildup.

Appliance	In Baldwin	Soft Water City	Efficiency Loss
Kettle	4.7 yrs	8.5 yrs	-45%
Washing Machine	6.6 yrs	12 yrs	-45%
Water Heater	8.3 yrs	15 yrs	-45%

Regional Water Comparison

How Baldwin compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Baldwin, New York	≈ 180+ mg/L	4.6 ppt	🔴 Very Hard	groundwater
Freeport, New York	≈ 0–60 mg/L	0 ppt	🟢 Soft	groundwater
Roosevelt, New York	34.4 mg/L	3.5 ppt	🟢 Soft	reservoir
Rockville Centre, New York	≈ 120–179 mg/L	0 ppt	🟠 Hard	groundwater
Oceanside, New York	≈ 120–179 mg/L	4.4 ppt	🟠 Hard	reservoir

National Benchmark

How Baldwin compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Baldwin	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Baldwin's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 365.9 mg/LpH: 8.1

The Village of Baldwin, located in Nassau County on western Long Island, New York, operates a municipal water supply system serving residential and commercial customers throughout the area. The utility sources water from the Long Island aquifer system, which comprises multiple interconnected groundwater zones tapping the region's subsurface formations. Water is treated at local treatment facilities before distribution, ensuring compliance with federal and state drinking water standards. The utility regularly monitors water quality parameters and publishes annual Consumer Confidence Reports detailing treatment processes and source water characteristics.

Baldwin's water supply originates from the Long Island aquifer complex, a series of Quaternary glacial deposits and Cretaceous-age sand and gravel formations underlying the coastal plain. The primary aquifer units include the Magothy and Lloyd formations, which contain naturally occurring calcium and magnesium minerals. As groundwater percolates through these rock and soil layers, it dissolves these minerals, producing a hard water supply characteristic of Long Island's hydrogeological setting.

At the very hard classification, Baldwin's water causes noticeable scale buildup in kettles, coffee makers, and showerheads, and reduces the efficiency of water heaters and dishwashers. Laundry may feel stiff and soap lather is significantly reduced. A water softener is strongly recommended to protect plumbing fixtures and extend appliance lifespan. Regular descaling of appliances is advisable to prevent mineral accumulation. According to the Village of Baldwin's 2022 Water Quality Report, all tested contaminants meet EPA Maximum Contaminant Level Goals; fluoride is not added to the supply.

Geology & Source: Long Island aquifer system — Quaternary glacial deposits overlying Cretaceous sand and gravel; Magothy and Lloyd aquifer units contain calcium and magnesium-rich minerals; hard water typical of Long Island's coastal plain

Other New York Water Reports

Freeport

≈ 0–60 mg/L

🟢 Soft

Roosevelt

34.4 mg/L

🟢 Soft

Rockville Centre

≈ 120–179 mg/L

🟠 Hard

Oceanside

≈ 120–179 mg/L

🟠 Hard

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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 Baldwin's water safe to drink?

Yes. Baldwin's water meets all federal safety standards. The hardness is ≈ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Baldwin?

At ≈ 180+ mg/L (Very Hard), Baldwin'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 45%.

How does Baldwin compare to the USA average?

The USA national average is 151 mg/L. Baldwin (≈ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Baldwin 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.