Bedford Water Hardness & Quality Report (2026)
Water Hardness
17°Clark24.3°fH13.6°dH
Source
mixed
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
650.2 mg/L
Est. Daily Cost
£0.55
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 Bedford, your appliances are currently losing 32% efficiency due to mineral buildup.
| Appliance | In Bedford | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.6 yrs | 8.5 yrs | -81% |
| Washing Machine | 4.6 yrs | 12 yrs | -62% |
| Water Heater | 5.9 yrs | 15 yrs | -61% |
Regional Water Comparison
How Bedford compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Bedford, East of England | 243 mg/L | 17° | 🔴 Very Hard | mixed |
| Kempston, East of England | 248.5 mg/L | 17.4° | 🔴 Very Hard | mixed |
| Kempston Hardwick, East of England | 248.5 mg/L | 17.4° | 🔴 Very Hard | mixed |
| Ampthill, East of England | 174.5 mg/L | 12.2° | 🟠 Hard | mixed |
| Flitwick, East of England | 300.5 mg/L | 21.1° | 🔴 Very Hard | mixed |
National Benchmark
How Bedford compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Bedford | 243 mg/L | 🔴 High |
| United Kingdom National Avg | 183 mg/L | 🔴 High |
| Livingston Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Bedford's Water Unique?
Local geology and source profile
Bedford, the county town of Bedfordshire on the River Great Ouse, is supplied by Anglian Water drawing from two principal sources: the River Great Ouse and licensed boreholes into the Bedfordshire Chalk Aquifer. The Great Ouse rises in Northamptonshire, flows through the Bedfordshire chalk and greensand country, and carries water from chalk and Jurassic limestone catchments with moderate to high dissolved calcium content by the time it reaches Bedford. Anglian Water abstracts from the Great Ouse and stores it in off-river reservoirs, blended with chalk borehole groundwater from the Cretaceous Chalk underlying the east Bedfordshire area. Water is treated at Anglian Water's facilities in Bedfordshire before distribution to Bedford and the surrounding county area. Bedford is one of the fastest-growing towns in the East of England.
Bedford's hardness of 243 mg/L (17.0°Clark) reflects the Bedfordshire Chalk contribution to both its borehole supply and the Great Ouse catchment. The chalk beneath east Bedfordshire is part of the continuous East Anglian Chalk Basin — a thick Cretaceous Chalk sequence extending from the Chilterns through Bedfordshire and Cambridgeshire. The Great Ouse catchment above Bedford drains limestone and chalk formations in Northamptonshire and north Bedfordshire, accumulating significant dissolved calcium. The chalk borehole component accesses this high-calcium aquifer directly. The combined result is classified as hard to very hard by the Drinking Water Inspectorate (DWI).
Limescale is a persistent daily challenge in Bedford. At 243 mg/L, limescale forms in kettles within one to two weeks and fortnightly descaling is necessary. Combi-boiler heat exchangers accumulate serious limescale deposits — annual boiler servicing with limescale inspection is essential, and fitting an in-line polyphosphate scale inhibitor is strongly recommended. Showerheads, taps, and shower screens develop heavy deposits requiring regular aggressive limescale treatment. Washing-up liquid lathers poorly. Bedford homeowners should consider a full water softener for comprehensive protection, particularly in properties with combi-boilers or high-value kitchen appliances.
Geology & Source: Supplied by Anglian Water from the Great Ouse catchment and Bedfordshire Chalk Aquifer — Bedford sits on the River Great Ouse where chalk-derived river flow and chalk borehole groundwater combine to produce very hard water at 243 mg/L (17.0°Clark).