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Frimley Water Hardness & Quality Report (2026)

Water Hardness

hard

~200–300 mg/L

Hard

estimated · not lab-verified

Source

mixed

pH Level

8

neutral = 7.0

Lead

0.001 mg/L

✓ Below action level

TDS

388.9 mg/L

Est. Daily Cost

£0.57

energy & soap waste

Source: DWI Data Portal · Updated 2026

hard~200–300 mg/LHard · est.

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 Frimley, your appliances are currently losing 33% efficiency due to mineral buildup.

ApplianceIn FrimleySoft Water CityEfficiency 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 Frimley compares to its nearest neighbours

CityHardnessClark°RiskSource
Frimley, South East≈ 200–300 mg/L17.5°🟠 Hardmixed
Camberley, South East≈ 300+ mg/L20°🔴 Very Hardmixed
Farnborough, South East≈ 200–300 mg/L13.5°🟠 Hardmixed
Sandhurst, South East≈ 200–300 mg/L20.3°🟠 Hardmixed
Aldershot, South East≈ 200–300 mg/L14.1°🟠 Hardmixed

National Benchmark

How Frimley compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Frimley≈ 200–300 mg/L🟠 High
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

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What Makes Frimley's Water Unique?

Local geology and source profile

Source: MixedTDS: 388.9 mg/LpH: 8

Frimley's water is supplied by SES Water, a provider that serves the South East region. Unfortunately, the specific sources and treatment facilities for Frimley itself were not detailed in the available information. To pinpoint the exact reservoirs, rivers, or underground aquifers feeding the area, and to identify the specific treatment plants involved in processing this supply, direct inquiry with SES Water or a review of their official reports would be necessary. The company's website, seswater.co.uk, is the best resource for this zone-specific data.

The geology underpinning Frimley's water supply is characterized by the North Downs Chalk. This chalky terrain, prevalent in the north Surrey chalk belt, is known for its mineral content. The porous nature of chalk allows it to dissolve minerals from the bedrock as water percolates through it. This process naturally leads to water with a very high mineral content, resulting in what is classified as extremely hard water.

Residents in Frimley may notice the effects of this extremely hard water on their appliances and plumbing. Limescale buildup is a common issue, potentially reducing the efficiency and lifespan of water heaters, dishwashers, and kettles. You might also find that soap and detergents don't lather as easily, requiring more product for cleaning. Regular descaling of appliances and considering a water softener could significantly mitigate these effects and improve daily water use.

Geology & Source: North Downs Chalk; chalk deposits yield extremely hard water

Other South East Water Reports

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Frequently Asked Questions

Is Frimley's water safe to drink?
Yes. Frimley's water meets all DWI drinking water standards. The hardness is ≈ 200–300 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Frimley?
At ≈ 200–300 mg/L (Hard), Frimley's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 33%.
How does Frimley compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Frimley (≈ 200–300 mg/L) is 73 mg/L above the national average. The softest major city is Skipton at just 7.1 mg/L.