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Dudley Water Hardness & Quality Report (2026)

Water Hardness

moderately hard

~150–199 mg/L

Moderately Hard

estimated · not lab-verified

Source

mixed

pH Level

7.6

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

250.6 mg/L

Est. Daily Cost

£0.40

energy & soap waste

Source: DWI Data Portal · Updated 2026

moderately hard~150–199 mg/LModerately Hard · est.

0–99

mg/L

Soft

100–149

mg/L

Slightly Hard

150–199

mg/L

Moderately Hard

200–300

mg/L

Hard

300+

mg/L

Very Hard

Appliance Damage Report

In Dudley, your appliances are currently losing 23% efficiency due to mineral buildup.

ApplianceIn DudleySoft Water CityEfficiency Loss
Kettle
6.5 yrs
8.5 yrs-24%
Washing Machine
9.2 yrs
12 yrs-23%
Water Heater
11.6 yrs
15 yrs-23%

Regional Water Comparison

How Dudley compares to its nearest neighbours

CityHardnessClark°RiskSource
Dudley, West Midlands≈ 150–199 mg/L12.3°🟡 Moderately Hardmixed
Tipton, West Midlands≈ 200–300 mg/L14.2°🟠 Hardmixed
Brierley Hill, West Midlands≈ 200–300 mg/L7.6°🟠 Hardmixed
Halesowen, West Midlands≈ 200–300 mg/L10.4°🟠 Hardmixed
Oldbury, West Midlands≈ 150–200 mg/L14.7°🟡 Moderately Hardmixed

National Benchmark

How Dudley compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Dudley≈ 150–199 mg/L🟡 Moderate
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

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What Makes Dudley's Water Unique?

Local geology and source profile

Source: MixedTDS: 250.6 mg/LpH: 7.6

Severn Trent Water serves Dudley, drawing from a mix of surface water and groundwater sources across the West Midlands. Their treatment plants process water from local watersheds before it reaches roughly 8 million customers throughout the region. The utility manages a diverse portfolio of water supplies, ensuring a consistent flow to the communities it serves.

The Dudley area's hydrogeology is defined by Carboniferous limestone and Triassic sandstone formations. As water percolates through these rock types, it naturally picks up dissolved calcium and magnesium minerals. This geological makeup is responsible for the moderately hard water that is typical for this part of the West Midlands, a direct result of the underlying geology.

Homeowners in Dudley might notice scale forming in appliances like kettles and water heaters, and soap may not lather as effectively. Over time, this can lead to limescale buildup in pipes and machinery, impacting the performance of dishwashers and washing machines. While regular descaling helps, a whole-house water softener isn't always essential, though some residents opt for one to improve appliance lifespan and overall comfort. Severn Trent Water ensures all supplied water meets stringent UK Drinking Water Inspectorate standards.

Geology & Source: Carboniferous limestone and Triassic sandstone; dissolves calcium and magnesium, causing moderate hardness

Other West Midlands Water Reports

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Frequently Asked Questions

Is Dudley's water safe to drink?
Yes. Dudley's water meets all DWI drinking water standards. The hardness is ≈ 150–199 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Dudley?
At ≈ 150–199 mg/L (Moderately Hard), Dudley'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 23%.
How does Dudley compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Dudley (≈ 150–199 mg/L) is 2 mg/L below the national average. The softest major city is Skipton at just 7.1 mg/L.