Stockport Water Hardness & Quality Report (2026)
Water Hardness
6.5°Clark9.3°fH5.2°dH
Source
mixed
pH Level
7.4
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
181.9 mg/L
Est. Daily Cost
£0.21
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 Stockport, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Stockport | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.5 yrs | 8.5 yrs | -12% |
| Washing Machine | 10.6 yrs | 12 yrs | -12% |
| Water Heater | 13.2 yrs | 15 yrs | -12% |
Regional Water Comparison
How Stockport compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Stockport, North West | 92.5 mg/L | 6.5° | 🟢 Soft | mixed |
| Bredbury, North West | ≈ 0–100 mg/L | 6° | 🟢 Soft | mixed |
| Cheadle Hulme, North West | 143 mg/L | 10° | 🟡 Slightly Hard | mixed |
| Burnage, North West | ≈ 100–150 mg/L | 9.1° | 🟡 Slightly Hard | mixed |
| Hazel Grove, North West | ≈ 0–100 mg/L | 6.8° | 🟢 Soft | mixed |
National Benchmark
How Stockport compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Stockport | 92.5 mg/L | 🟢 None |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Stockport's Water Unique?
Local geology and source profile
United Utilities supplies water and wastewater services to Stockport in Greater Manchester, North West England. The utility draws water from reservoirs in the Pennines and Lake District, including Haweswater, and also utilizes Lake Vyrnwy in Wales. This water travels through more than 1,400 kilometers of aqueducts to one of United Utilities' 88 water treatment works before being distributed to customers. The Stockport supply falls within the Pennine watershed.
The geology underlying Stockport consists of Carboniferous-age Millstone Grit and Coal Measures rock formations, which are typical for the Greater Manchester area. These rock types are known to contribute dissolved minerals to the water as it flows through them, resulting in a supply that is moderately mineralized. The water originates from upland reservoirs, and this geological interaction influences its overall mineral content before treatment.
Homeowners in Stockport might notice that appliances and pipes are less likely to accumulate significant scale buildup due to the water's moderate mineral content. However, the water's mineral composition can still affect the taste and how soap lathers. For those sensitive to mineral content or seeking to optimize appliance performance, a water softener could be considered. United Utilities is undertaking an £80 million investment to improve water quality in the area, which may also impact the water characteristics over time.
Geology & Source: Pennine Millstone Grit and Coal Measures; moderate mineral content
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