Allerton Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
8.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
331.7 mg/L
Est. Daily Cost
£0.57
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 Allerton, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Allerton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 8 yrs | 12 yrs | -33% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Allerton compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Allerton, North West | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Mossley Hill, North West | ≈ 200–300 mg/L | 11.4° | 🟠 Hard | mixed |
| Woolton, North West | ≈ 0–100 mg/L | 12.2° | 🟢 Soft | mixed |
| Childwall, North West | ≈ 200–300 mg/L | 8° | 🟠 Hard | mixed |
| Hunts Cross, North West | ≈ 200–300 mg/L | 12.5° | 🟠 Hard | mixed |
National Benchmark
How Allerton compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Allerton | ≈ 200–300 mg/L | 🟠 High |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Allerton's Water Unique?
Local geology and source profile
Residents in the Allerton area receive their water from a mixed supply. The primary source is Lake District aqueducts, managed by United Utilities, which feed into regional treatment facilities on Merseyside. This surface water is blended with groundwater drawn from Permo-Triassic Sandstone aquifers in the southern part of Liverpool's distribution zone. The water undergoes treatment at these main plants before reaching homes.
The geology underpinning the water supply features Permo-Triassic Sandstone bedrock. This porous sandstone formation is a significant aquifer in the Liverpool region. Water percolating through this sandstone picks up minerals, contributing to the water's characteristics. The interaction between the water and the sandstone is the reason for its classification as moderately hard, registering at 11.4° Clark.
This moderately hard water means you might notice some scale buildup over time, particularly in appliances like kettles and water heaters. Using limescale removers periodically can help maintain efficiency. You may also find that soap and detergents don't lather quite as readily as they might with softer water. While not a major concern for most, installing a water softener could further reduce limescale and improve lathering if desired.
Geology & Source: Permo-Triassic Sandstone aquifer; sandstone bedrock produces moderately hard water
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