London vs Leeds
Water quality comparison
According to TapWater.uk, London scores 8.3/10 and Leeds scores 9.5/10 for drinking water quality. Leeds has the better water.
LondonThames Water · very hard water8.3 out of 10 · 79 flagged across 58 areasLeedsYorkshire Water · moderately hard water9.5 out of 10 · 0 flagged across 28 areas
Leeds has better water quality, by 1.2 points.
Key differences
- Safety scoreLeeds scores 1.2 points higher than London.
- Contaminants flaggedLondon has 79 issues flagged vs 0 in Leeds.
- Water supplierLondon is supplied by Thames Water, while Leeds uses Yorkshire Water.
- Water hardnessLondon has very hard water (274 mg/L), Leeds has moderately hard water (160 mg/L).
Top concerns by city
London
- Nitrite57 areas
- Coliform Bacteria15 areas
- E. coli4 areas
- Lead2 areas
Leeds
No contaminants flagged
Full city reports
London water reportLeeds water report
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More comparisons
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Based on water quality data from 86 postcode districts across London and Leeds. See our methodology for how scores are calculated.