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Gateshead Water Hardness & Quality Report (2026)

Water Hardness

178.5mg/L
Moderately Hard

12.5°Clark17.9°fH10°dH

Source

mixed

pH Level

7.8

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

304.5 mg/L

Est. Daily Cost

£0.40

energy & soap waste

Source: DWI Data Portal · Updated 2026

178.5mg/L as CaCO₃Moderately 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 Gateshead, your appliances are currently losing 24% efficiency due to mineral buildup.

ApplianceIn GatesheadSoft Water CityEfficiency Loss
Kettle
6.5 yrs
8.5 yrs-24%
Washing Machine
9.1 yrs
12 yrs-24%
Water Heater
11.4 yrs
15 yrs-24%

Regional Water Comparison

How Gateshead compares to its nearest neighbours

CityHardnessClark°RiskSource
Gateshead, North East178.5 mg/L12.5°🟡 Moderately Hardmixed
Newcastle upon Tyne, North East≈ 300+ mg/L5.6°🔴 Very Hardreservoir
Felling, North East≈ 200–300 mg/L5.7°🟠 Hardmixed
Gosforth, North East≈ 150–200 mg/L10.6°🟡 Moderately Hardmixed
Wallsend, North East≈ 100–150 mg/L8.8°🟡 Slightly Hardmixed

National Benchmark

How Gateshead compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Gateshead178.5 mg/L🟡 Moderate
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

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What Makes Gateshead's Water Unique?

Local geology and source profile

Source: MixedTDS: 304.5 mg/LpH: 7.8

Northumbrian Water Limited provides the water supply for Gateshead and the wider Tyne and Wear region. Their diverse sources include major rivers like the River Tyne and Derwent, expansive reservoirs such as Kielder Water and Derwent Reservoir, and several groundwater boreholes. Water undergoes rigorous treatment at large facilities including Howdon and Sunderland. Here, processes like coagulation, filtration, chlorination, and fluoridation are employed to ensure the water meets stringent quality standards before reaching residents.

The water's journey begins in the Pennine uplands, drawing from the watershed that encompasses the Cheviot Hills and North Pennines. Geologically, the area features Carboniferous limestone and sandstone in the lower valleys, often covered by peat moorlands. Where limestone is present, the water naturally picks up more minerals, particularly calcium and magnesium, making it more mineralized. Conversely, surface water from the granite and schist terrains of the uplands remains much softer because it has less contact with soluble rocks and is influenced by organic acidity from the peaty soils.

Homeowners in areas like Gateshead may notice scale buildup on appliances such as kettles and boilers, which can impact their efficiency and longevity. You might also see white deposits on taps or find that soap doesn't lather as easily. Regular descaling with vinegar or using filter jugs can help manage this. For households experiencing consistently harder water, installing a water softener is often a good idea to protect appliances and improve cleaning effectiveness, although it's not strictly necessary everywhere given the mixed nature of the supply. The water quality consistently meets UK standards, with Drinking Water Inspectorate reports showing stable conditions.

Geology & Source: North East England; Carboniferous limestone and millstone grit contribute minerals; softer moorland catchments with granite and metamorphic rocks; variable hardness profile.

Other North East Water Reports

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Frequently Asked Questions

Is Gateshead's water safe to drink?
Yes. Gateshead's water meets all DWI drinking water standards. The hardness is 178.5 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Gateshead?
At 178.5 mg/L (Moderately Hard), Gateshead'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 24%.
How does Gateshead compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Gateshead (178.5 mg/L) is 1 mg/L above the national average. The softest major city is Skipton at just 7.1 mg/L.