Oadby Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
351 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 Oadby, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Oadby | 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 Oadby compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Oadby, East Midlands | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Evington, East Midlands | ≈ 0–100 mg/L | 10.7° | 🟢 Soft | mixed |
| Wigston Magna, East Midlands | ≈ 0–100 mg/L | 9.1° | 🟢 Soft | mixed |
| Humberstone, East Midlands | ≈ 200–300 mg/L | 17.4° | 🟠 Hard | mixed |
| Belgrave, East Midlands | ≈ 150–200 mg/L | 14.3° | 🟡 Moderately Hard | mixed |
National Benchmark
How Oadby compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Oadby | ≈ 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 Oadby's Water Unique?
Local geology and source profile
Severn Trent Water supplies Oadby in Leicestershire with mains water drawn from a mix of sources. This includes surface water from the Draycote Reservoir and the River Soar tributaries, as well as groundwater from boreholes tapping into local Triassic sandstone aquifers. Treatment occurs at facilities like the Cropston and Knighton plants, managing a supply that combines reservoir and river water with abstracted groundwater before it reaches homes in Oadby and the surrounding East Midlands region.
The water's journey begins in the Soar catchment, flowing through sedimentary rock layers like the Mercia Mudstone Group and Sherwood Sandstone Group formations. Jurassic limestones also play a role in shaping the groundwater chemistry. These geological formations, particularly the limestones and sandstones, are rich in calcium-bearing minerals. As rainwater percolates through these permeable layers, these minerals dissolve, giving the water its characteristic moderately hard to hard quality, a common trait in the East Midlands compared to softer supplies found in other parts of the UK.
Residents in Oadby may notice limescale buildup in appliances like kettles, boilers, and showerheads, which can reduce their efficiency and lead to higher energy bills. You might find that soap lathers less readily, requiring more detergent for cleaning tasks. To combat these effects and protect your plumbing and appliances, regular descaling with household solutions like vinegar can help. For a more comprehensive solution to prevent pipe clogging and extend the lifespan of washing machines and dishwashers, installing a whole-house water softener is often recommended in hard water areas.
Geology & Source: Mercian Supergroup mudstones and sandstones; Lincolnshire Limestone Formation; chalk and gravel deposits; limestone and sandstone formations contribute high hardness
Other East Midlands Water Reports
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