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Woolton Water Hardness & Quality Report (2026)

Water Hardness

174mg/L
Hard

12.2°Clark17.4°fH9.7°dH

Source

mixed

pH Level

8

neutral = 7.0

Lead

0.005 mg/L

✓ Below action level

TDS

506.7 mg/L

Est. Daily Cost

£0.39

energy & soap waste

Source: DWI Data Portal · Updated 2026

174mg/L as CaCO₃Hard

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Woolton, your appliances are currently losing 23% efficiency due to mineral buildup.

ApplianceIn WooltonSoft Water CityEfficiency Loss
Kettle
3.9 yrs
8.5 yrs-54%
Washing Machine
7.2 yrs
12 yrs-40%
Water Heater
8.6 yrs
15 yrs-43%

Regional Water Comparison

How Woolton compares to its nearest neighbours

CityHardnessClark°RiskSource
Woolton, North West174 mg/L12.2°🟠 Hardmixed
Hunts Cross, North West178 mg/L12.5°🟠 Hardmixed
Belle Vale, North West177 mg/L12.4°🟠 Hardmixed
Allerton, North West163 mg/L11.4°🟠 Hardmixed
Childwall, North West114 mg/L8°🟡 Moderately Hardmixed

National Benchmark

How Woolton compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Woolton174 mg/L🟠 Moderate
United Kingdom National Avg183 mg/L🔴 High
Livingston Top Rated8.5 mg/L🟢 None

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What Makes Woolton's Water Unique?

Local geology and source profile

Source: MixedTDS: 506.7 mg/LpH: 8

United Utilities supplies Woolton, an affluent village suburb in south Liverpool — birthplace of Paul McCartney and the site of Strawberry Field where McCartney met John Lennon at the St Peter's Church fete in 1957, directly inspiring one of the Beatles' greatest songs — from Lake District aqueduct supply blended with a substantial proportion of Permo-Triassic Sandstone (New Red Sandstone) groundwater in the south Liverpool distribution zone, treated at Prescot Water Treatment Works. At 174 mg/L (12.2°Clark), Woolton's water is moderately hard — far harder than the north Liverpool Lake District-dominant zones (76–88 mg/L) — reflecting a large Triassic groundwater fraction in the south Liverpool supply sub-zone.

Woolton is in the south Liverpool distribution zone where the soft Lake District aqueduct baseline (from Thirlmere and Haweswater) is blended with a dominant proportion of Triassic Sherwood Sandstone groundwater from the south Merseyside aquifer. The elevated TDS/hardness ratio (~2.9) at 174 mg/L with TDS 506.7 mg/L indicates significant sulphate content from Triassic Mercia Mudstone (Keuper Marl) gypsum dissolution — a supply character consistent with the south Liverpool Triassic groundwater-dominant zone that includes Childwall (114 mg/L), Dingle (148.5 mg/L), and Woolton (174 mg/L) along the south Liverpool Triassic hardness gradient.

At 174 mg/L, limescale is a noticeable household concern in Woolton. Kettles benefit from descaling every three to four weeks. The combi-boiler should be fitted with a scale inhibitor and serviced annually. Washing-up liquid requires more product per wash than in softer areas. Taps and shower heads develop moderate to visible white limescale deposits within one to two weeks; a fortnightly wipe with white vinegar keeps fixtures in good condition. The moderately hard Triassic-influenced supply in south Liverpool is a far cry from the very soft water that would have flowed from the tap at Strawberry Field in the creative years of the early 1960s Beatles.

Geology & Source: Supplied by United Utilities from Lake District aqueducts blended with Triassic Sandstone groundwater in the south Liverpool distribution zone — treated at Prescot Water Treatment Works — produces moderately hard water at 174 mg/L (12.2°Clark).

Other North West Water Reports

Frequently Asked Questions

Is Woolton's water safe to drink?
Yes. Woolton's water meets all federal safety standards. The hardness is 174 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 Woolton?
At 174 mg/L (Hard), Woolton'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 23%.
How does Woolton compare to the United Kingdom average?
The United Kingdom national average is 183 mg/L. Woolton at 174 mg/L is 9 mg/L below the national average. The softest major city is Livingston at just 8.5 mg/L.