LocalDataPoint

Mountsorrel Water Hardness & Quality Report (2026)

Water Hardness

147mg/L
Slightly Hard

10.3°Clark14.7°fH8.2°dH

Source

mixed

pH Level

7.7

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

229.9 mg/L

Est. Daily Cost

£0.33

energy & soap waste

Source: DWI Data Portal · Updated 2026

147mg/L as CaCO₃Slightly Hard

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 Mountsorrel, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn MountsorrelSoft Water CityEfficiency Loss
Kettle
6.8 yrs
8.5 yrs-20%
Washing Machine
9.6 yrs
12 yrs-20%
Water Heater
12 yrs
15 yrs-20%

Regional Water Comparison

How Mountsorrel compares to its nearest neighbours

CityHardnessClark°RiskSource
Mountsorrel, East Midlands147 mg/L10.3°🟡 Slightly Hardmixed
Birstall, East Midlands≈ 200–300 mg/L12.8°🟠 Hardmixed
Loughborough, East Midlands≈ 200–300 mg/L15.8°🟠 Hardmixed
Belgrave, East Midlands≈ 150–200 mg/L14.3°🟡 Moderately Hardmixed
Leicester, East Midlands≈ 150–200 mg/L11.9°🟡 Moderately Hardmixed

National Benchmark

How Mountsorrel compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Mountsorrel147 mg/L🟡 Low
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

Bring Skipton-quality water to your Mountsorrel home

Shop water softeners on Amazon.co.uk

Shop Now

What Makes Mountsorrel's Water Unique?

Local geology and source profile

Source: MixedTDS: 229.9 mg/LpH: 7.7

Severn Trent Water supplies Mountsorrel, a village in Leicestershire, East Midlands, UK, drawing water from a mix of sources. These include groundwater from Permo-Triassic aquifers and surface water from the River Soar and reservoirs like Cropston Reservoir. Water undergoes treatment at facilities such as the Stanford-on-Soar Water Treatment Works, with smaller plants handling groundwater abstraction. The utility serves over 8 million customers across the Midlands, with the watershed primarily within the Trent River Basin. Key inputs from the River Soar flow through a landscape shaped by mudstone and sandstone geology.

The bedrock beneath Mountsorrel consists of Permo-Triassic sandstones and Mercian Mudstone, which form productive aquifers. Limestone deposits are also present within the catchment area. As rainwater percolates through these mineral-rich, porous rocks, it dissolves calcium and magnesium. This geological interaction is the primary reason for the area's hard water supply, as the water picks up a significant mineral content before reaching the treatment works. Surface waters show moderate mineralisation, which then blends with the naturally harder groundwater.

Homeowners in areas with moderately hard to hard water often notice limescale buildup, particularly in appliances like kettles, boilers, and showerheads, which can reduce their efficiency and shorten their lifespan. You might also find that soap doesn't lather as easily, potentially leading to increased detergent use and spotting on dishes. Regular descaling with household solutions like vinegar or citric acid can help manage this. Installing limescale filters on taps is another option, as is ensuring your dishwasher's salt setting is appropriately adjusted. Given the water's hardness, installing a water softener could be beneficial to protect appliances and may improve how your skin and hair feel after washing.

Geology & Source: Mercian Mudstone Group; Permo-Triassic sandstones; limestone deposits lead to hard water

Other East Midlands Water Reports

Report an Issue

Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Contact Us

Frequently Asked Questions

Is Mountsorrel's water safe to drink?
Yes. Mountsorrel's water meets all DWI drinking water standards. The hardness is 147 mg/L (Slightly Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Mountsorrel?
Mountsorrel's water is slightly hard at 147 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.
How does Mountsorrel compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Mountsorrel (147 mg/L) is 30 mg/L below the national average. The softest major city is Skipton at just 7.1 mg/L.