Great Sankey Water Hardness & Quality Report (2026)
Water Hardness
estimated · not lab-verified
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
192.5 mg/L
Est. Daily Cost
£0.28
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 Great Sankey, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Great Sankey | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.1 yrs | 8.5 yrs | -16% |
| Washing Machine | 10.1 yrs | 12 yrs | -16% |
| Water Heater | 12.6 yrs | 15 yrs | -16% |
Regional Water Comparison
How Great Sankey compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Great Sankey, North West | 123 mg/L | 8.6° | 🟢 Soft | mixed |
| Warrington, North West | ≈ 0–100 mg/L | 7.3° | 🟢 Soft | mixed |
| Newton-le-Willows, North West | ≈ 100–150 mg/L | 13.5° | 🟡 Slightly Hard | mixed |
| Haydock, North West | ≈ 0–100 mg/L | 5.4° | 🟢 Soft | mixed |
| Ashton in Makerfield, North West | ≈ 0–100 mg/L | 12.9° | 🟢 Soft | mixed |
National Benchmark
How Great Sankey compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Great Sankey | 123 mg/L | 🟡 Low |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Great Sankey's Water Unique?
Local geology and source profile
United Utilities supplies Great Sankey with a blend of water from Thirlmere reservoir and the River Dee at Huntington. This mixed supply is distributed through the Cheshire network. The water originates from the Lake District, known for its soft water, and the River Dee, which also contributes to a softer water profile. This combination results in water that is classified as moderately soft for residents in the Warrington area.
Great Sankey's water originates from the Lake District and the River Dee. The Lake District geology is primarily composed of ancient volcanic rocks and slate, which are resistant to weathering and dissolve very few minerals, leading to exceptionally soft water. The River Dee basin, particularly around Huntington, flows through areas with sandstone and shale formations. These geological characteristics contribute to the overall soft water profile supplied to the region.
Homeowners in Great Sankey might notice that moderately soft water doesn't produce a large lather with soap, but it's generally beneficial for appliances and plumbing. You may find less limescale buildup in kettles and on showerheads compared to areas with very hard water. If you're concerned about water spots on dishes from your dishwasher, a rinse aid can help. For those accustomed to harder water, the difference in how soap lathers might be the most noticeable change.
Geology & Source: Lake District and Dee supply; sandstone and shale produce very soft to moderately soft water
Other North West Water Reports
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