Hollinwood Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
8.4
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
434.5 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 Hollinwood, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Hollinwood | 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 Hollinwood compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Hollinwood, North West | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Oldham, North West | ≈ 0–100 mg/L | 12.3° | 🟢 Soft | mixed |
| Chadderton, North West | ≈ 0–100 mg/L | 13.1° | 🟢 Soft | mixed |
| Failsworth, North West | ≈ 0–100 mg/L | 8.9° | 🟢 Soft | mixed |
| Droylsden, North West | ≈ 0–100 mg/L | 10.9° | 🟢 Soft | mixed |
National Benchmark
How Hollinwood compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hollinwood | ≈ 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 Hollinwood's Water Unique?
Local geology and source profile
The water serving Hollinwood comes from a mix of sources managed by United Utilities. Primarily, it is drawn from the Pennine reservoir system, which collects rainfall from the surrounding hills. This surface water is then blended with groundwater drawn from the Triassic Sandstone formations beneath the west Oldham distribution zone. All of this water undergoes rigorous treatment at the Buckton Vale Water Treatment Works before it reaches your tap.
The journey of your water through the Pennine region means it interacts with the underlying geology. The Triassic Sandstone bedrock, known for its porous nature, allows water to dissolve minerals as it flows through underground aquifers. This geological process, common in areas with sandstone and limestone formations, is what contributes to the water's mineral content and ultimately results in it being classified as hard water.
This level of hardness, measuring around 14.5° Clark, can mean you'll notice limescale buildup on your taps, showerheads, and inside your kettle over time. It might also affect how well soap and detergent lather, requiring you to use a bit more. To combat scale, regular cleaning of appliances is recommended. If you find scale is a persistent issue impacting your Hollinwood home, a water softener could be a worthwhile investment to protect your plumbing and appliances.
Geology & Source: Pennine sandstone and limestone aquifers; Triassic Sandstone bedrock; produces hard water
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