Dudley Water Hardness & Quality Report (2026)
Water Hardness
~150–199 mg/L
Moderately Hardestimated · 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
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.
| Appliance | In Dudley | Soft Water City | Efficiency 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
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Dudley, West Midlands | ≈ 150–199 mg/L | 12.3° | 🟡 Moderately Hard | mixed |
| Tipton, West Midlands | ≈ 200–300 mg/L | 14.2° | 🟠 Hard | mixed |
| Brierley Hill, West Midlands | ≈ 200–300 mg/L | 7.6° | 🟠 Hard | mixed |
| Halesowen, West Midlands | ≈ 200–300 mg/L | 10.4° | 🟠 Hard | mixed |
| Oldbury, West Midlands | ≈ 150–200 mg/L | 14.7° | 🟡 Moderately Hard | mixed |
National Benchmark
How Dudley compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Dudley | ≈ 150–199 mg/L | 🟡 Moderate |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Dudley's Water Unique?
Local geology and source profile
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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