Amesbury 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
368.5 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 Amesbury, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Amesbury | 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 Amesbury compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Amesbury, South West | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Salisbury, South West | ≈ 300+ mg/L | 19° | 🔴 Very Hard | mixed |
| Tidworth, South West | ≈ 150–200 mg/L | 13.7° | 🟡 Moderately Hard | mixed |
| Devizes, South West | ≈ 150–200 mg/L | 16.9° | 🟡 Moderately Hard | mixed |
| Andover, South East | ≈ 200–300 mg/L | 11.7° | 🟠 Hard | mixed |
National Benchmark
How Amesbury compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Amesbury | ≈ 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 Amesbury's Water Unique?
Local geology and source profile
Wessex Water draws its supply for Amesbury from the Salisbury Plain Chalk aquifer. Water is extracted from boreholes within this chalk formation and then conveyed to the Bourne Valley Water Treatment Works for processing before being distributed to residents. This chalk aquifer is a significant source for the region, providing a substantial volume of water that undergoes rigorous treatment to meet drinking standards.
The water's hardness is a direct result of its geological origins. It flows through the Cretaceous chalk of the Salisbury Plain, a porous rock rich in minerals. As water percolates through this chalk, it dissolves calcium and magnesium carbonates, leading to characteristically hard water. The Salisbury Plain Chalk formation is well-known for imparting these mineral qualities to the water it yields.
Homeowners in Amesbury may notice the effects of this hard water on their appliances and plumbing. Scale buildup is common in kettles, coffee makers, and especially water heaters, potentially reducing their efficiency and lifespan. Using soap and detergent can also be less effective, requiring more product for the same lather. Regular descaling of appliances and considering a water softener can mitigate these issues, protecting your home's systems and improving cleaning performance.
Geology & Source: Chalk aquifer; Cretaceous chalk produces hard water
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