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Abergele Water Hardness & Quality Report (2026)

Water Hardness

slightly hard

~100–149 mg/L

Slightly Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.6

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

228.4 mg/L

Est. Daily Cost

£0.28

energy & soap waste

Source: DWI Data Portal · Updated 2026

slightly hard~100–149 mg/LSlightly Hard · 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 Abergele, your appliances are currently losing 17% efficiency due to mineral buildup.

ApplianceIn AbergeleSoft Water CityEfficiency Loss
Kettle
7.1 yrs
8.5 yrs-16%
Washing Machine
10 yrs
12 yrs-17%
Water Heater
12.5 yrs
15 yrs-17%

Regional Water Comparison

How Abergele compares to its nearest neighbours

CityHardnessClark°RiskSource
Abergele, Wales≈ 100–149 mg/L8.8°🟡 Slightly Hardreservoir
Rhyl, Wales≈ 0–100 mg/L4.7°🟢 Softreservoir
Colwyn Bay, Wales≈ 0–100 mg/L5.2°🟢 Softreservoir
Prestatyn, Wales≈ 100–150 mg/L5.9°🟡 Slightly Hardreservoir
Llandudno, Wales≈ 150–200 mg/L9.6°🟡 Moderately Hardreservoir

National Benchmark

How Abergele compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Abergele≈ 100–149 mg/L🟡 Low
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

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What Makes Abergele's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 228.4 mg/LpH: 7.6

The water supply for Abergele, Wales, comes from Alwen Reservoir, located in the Denbigh Moors. This water is then treated at Llyn Brenig Water Treatment Works before being supplied to residents. Welsh Water is the company responsible for this vital service, ensuring the water meets regulatory standards. While specific details about the treatment process and the exact origin of the supply are limited in the provided data, the reservoir serves as the primary collection point for the region's drinking water.

Water in this region originates from a landscape characterized by moorlands. The geological makeup of the Denbigh Moors contributes to the water's characteristics. Specifically, the water flowing into Alwen Reservoir is known to be soft. This softness is a direct result of the geology, as the underlying rock formations in the area do not contain high concentrations of dissolved minerals like calcium and magnesium, which are the primary contributors to water hardness.

Homeowners in Abergele may notice the effects of soft water on their daily routines. Appliances like washing machines and dishwashers often perform more efficiently with soft water, and less soap or detergent is needed for cleaning. Pipes are less likely to suffer from scale buildup, potentially extending their lifespan. While generally desirable for its lack of mineral deposits, some individuals find the taste of soft water to be different from harder supplies. No significant safety concerns were noted in the available information.

Geology & Source: Welsh Water; soft water (5.5°Clark)

Other Wales Water Reports

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Frequently Asked Questions

Is Abergele's water safe to drink?
Yes. Abergele's water meets all DWI drinking water standards. The hardness is ≈ 100–149 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 Abergele?
Abergele's water is slightly hard at ≈ 100–149 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.
How does Abergele compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Abergele (≈ 100–149 mg/L) is 52 mg/L below the national average. The softest major city is Skipton at just 7.1 mg/L.