Rastrick Water Hardness & Quality Report (2026)
Water Hardness
7.6°Clark10.9°fH6.1°dH
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
261.2 mg/L
Est. Daily Cost
£0.25
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Rastrick, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Rastrick | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6 yrs | 8.5 yrs | -29% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Rastrick compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Rastrick, Yorkshire and the Humber | 108.5 mg/L | 7.6° | 🟡 Moderately Hard | mixed |
| Brighouse, Yorkshire and the Humber | 82.5 mg/L | 5.8° | 🟡 Moderately Hard | mixed |
| Huddersfield, Yorkshire and the Humber | 198 mg/L | 13.9° | 🔴 Very Hard | mixed |
| Elland, Yorkshire and the Humber | 112 mg/L | 7.9° | 🟡 Moderately Hard | mixed |
| Halifax, Yorkshire and the Humber | 116.5 mg/L | 8.2° | 🟡 Moderately Hard | mixed |
National Benchmark
How Rastrick compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Rastrick | 108.5 mg/L | 🟡 Low |
| United Kingdom National Avg | 183 mg/L | 🔴 High |
| Livingston Top Rated | 8.5 mg/L | 🟢 None |
Bring Livingston-quality water to your Rastrick home
Shop water softeners on Amazon.co.uk →
What Makes Rastrick's Water Unique?
Local geology and source profile
Yorkshire Water supplies Rastrick, the West Yorkshire village in the Metropolitan Borough of Calderdale between Brighouse and Elland — a hillside community above the Calder Valley, home of the celebrated Rastrick Brass Band (founded 1864), with panoramic views across the valley and a proud textile and industrial heritage shared with the wider Calderdale district — from Pennine upland reservoirs in the Calder valley supply zone, treated at Copley Water Treatment Works near Halifax. At 108.5 mg/L (7.6°Clark), Rastrick's water is slightly hard — reflecting a modest calcium contribution from the Carboniferous Coal Measures and Millstone Grit upland catchments that underlie the Calderdale Pennine reservoirs.
Rastrick lies in the Calder Valley where Yorkshire Water draws from Pennine reservoirs on the Carboniferous Millstone Grit and Coal Measures moorland of west Yorkshire. The peat moorland and gritstone catchments yield low-mineralisation soft water, but the distribution zone for the Brighouse–Rastrick corridor blends with minor limestone contributions from the Carboniferous limestone fringe to produce 108.5 mg/L with TDS 261.2 mg/L — slightly hard water consistent with the Calderdale supply corridor at Halifax (106.5 mg/L) and Brighouse in the same Yorkshire Water Calder Valley distribution zone.
At 108.5 mg/L, limescale is a moderate and manageable domestic concern in Rastrick. Descaling the kettle every six to eight weeks is typically adequate. The combi-boiler benefits from a standard scale inhibitor as a precaution. Washing-up liquid lathers adequately at everyday quantities. Taps and shower heads develop moderate deposits over several weeks; a monthly wipe with white vinegar keeps fixtures in good condition. Rastrick's slightly hard supply is characteristic of the Calder Valley Pennine reservoir tier — Millstone Grit moorland water with a modest mineralisation that puts a gentle limescale edge on the kettle without the harder character of the chalk-supply districts to the south-east.
Geology & Source: Supplied by Yorkshire Water from Pennine upland reservoirs in the Calder Valley supply zone — treated at Copley Water Treatment Works — produces slightly hard water at 108.5 mg/L (7.6°Clark).