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

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

Yeadon Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.9

neutral = 7.0

Lead

0.004 mg/L

✓ Below action level

TDS

284.3 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 Yeadon, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Yeadon	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 Yeadon compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Yeadon, Pennsylvania	≈ 120–179 mg/L	7.2 ppt	🟠 Hard	reservoir
Lansdowne, Pennsylvania	101 mg/L	5.1 ppt	🟡 Moderately Hard	reservoir
Cobbs Creek, Pennsylvania	≈ 120–179 mg/L	7.2 ppt	🟠 Hard	reservoir
Darby, Pennsylvania	≈ 120–179 mg/L	7.8 ppt	🟠 Hard	reservoir
Paschall, Pennsylvania	≈ 120–179 mg/L	8.3 ppt	🟠 Hard	reservoir

National Benchmark

How Yeadon compares to the USA average

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

Local geology and source profile

Source: ReservoirTDS: 284.3 mg/LpH: 7.9

Philadelphia Water Department supplies Yeadon with treated surface water sourced from the Schuylkill River and Delaware River watersheds. Yeadon is one of over 40 suburbs served by the PWD, which provides water to more than 1.5 million people across the Philadelphia metropolitan region. The water undergoes treatment at facilities including the Queen Lane and Belmont plants (for Schuylkill River water) and the Baxter Water Treatment Plant (for Delaware River water). These extensive operations ensure a reliable supply for residents.

The geology beneath the Schuylkill and Delaware River watersheds is characterized by Paleozoic-era sedimentary rocks, including sandstones and shales. Of particular note are limestone and dolomite formations, such as the Chickies Formation and Keyser Formation, dating back to the Cambrian-Ordovician and Devonian periods, respectively. These carbonate-rich bedrock types naturally dissolve, leaching calcium and magnesium into the river water and giving it a moderately mineralized, or hard, character.

Homeowners in Yeadon may notice moderate scale buildup in appliances like water heaters and dishwashers, which can decrease efficiency and raise energy bills over time. You might also find that laundry feels a bit stiff, and faucet aerators can become clogged. While regular descaling with vinegar and appliance checks can help manage this, many residents find installing a water softener beneficial. This can extend the lifespan of your plumbing and appliances and improve how effectively soaps and detergents lather.

Geology & Source: Paleozoic sedimentary rocks; limestone and dolomite formations contribute moderate hardness

Other Pennsylvania Water Reports

Lansdowne

101 mg/L

🟡 Moderately Hard

Cobbs Creek

≈ 120–179 mg/L

🟠 Hard

Darby

≈ 120–179 mg/L

🟠 Hard

Paschall

≈ 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 Yeadon's water safe to drink?

Yes. Yeadon'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 Yeadon?

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

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