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

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

Tonawanda Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

333.2 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 Tonawanda, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Tonawanda	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 Tonawanda compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Tonawanda, New York	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
North Tonawanda, New York	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Kenmore, New York	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Grand Island, New York	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Amherst, New York	≈ 120–179 mg/L	5.9 ppt	🟠 Hard	river

National Benchmark

How Tonawanda compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Tonawanda	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

Bring Scarsdale-quality water to your Tonawanda home

Shop water softeners on Amazon.com →

Shop Now

What Makes Tonawanda's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 333.2 mg/LpH: 8

Tonawanda, Town Water Dept. provides water to residents and businesses in the Town of Tonawanda, Erie County, New York. Their supply originates from surface water sources, primarily the Niagara River, which is part of the Great Lakes watershed and receives inflows from Lake Erie. Raw water undergoes conventional treatment, including filtration and chlorine disinfection, at their facility. You can reach the utility for billing and emergencies at 716-874-0490 or through their website, tonawanda.ny.us. The treatment plant is located at 525 Belmont Ave., Tonawanda, NY 14223.

The region's bedrock is characterized by Silurian Bertie Dolomite and Devonian Onondaga Limestone formations, notably along the Niagara Escarpment. These geological layers are rich in calcium and magnesium carbonates. As water travels through these extensive limestone deposits, it naturally dissolves these minerals, leading to the water's hard quality and elevated mineral content, typical of the Niagara Frontier.

Homeowners in Tonawanda may notice scale buildup in appliances like water heaters, dishwashers, and washing machines, which can decrease their efficiency and shorten their lifespan. You might also find that more soap or detergent is needed for cleaning. To combat these effects and protect your plumbing, periodic descaling with vinegar or considering a water softener is advised. While the water quality is rated good, always check the annual Consumer Confidence Report for the most up-to-date details on specific parameters.

Geology & Source: Silurian and Devonian dolomitic limestones and shales; Bertie Formation and Onondaga Limestone dissolve minerals, producing hard water.

Other New York Water Reports

North Tonawanda

≈ 120–179 mg/L

🟠 Hard

Kenmore

≈ 120–179 mg/L

🟠 Hard

Grand Island

≈ 120–179 mg/L

🟠 Hard

Amherst

≈ 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 Tonawanda's water safe to drink?

Yes. Tonawanda'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 Tonawanda?

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

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