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Mains drinking water
Who to contact about the quality of mains drinking water
Contact Thames Water if you're worried about the quality of your drinking water.
On the Thames Water website you can also:
- download a summary report of your water quality/hardness
- report a leak
- find out about street works that might affect your water supply
- find a locally approved plumber
Contact our Environmental Health Team on environmentalcustom@southwark.gov.uk if you're not happy with Thames Water's response.
You can read more about water quality on the: