Fluoride

Fluoride occurs naturally at very low levels in drinking water; the amount depends on the type of rock your water supply comes from.

In line with the World Health Organisation’s recommendations, our tap water contains less than 1.5 milligrams per litre (equivalent to one and a half parts per million) of fluoride and in most areas it’s much lower.

Where is fluoride added to the water supply?

In some areas - parts of Bedfordshire, North Nottinghamshire and Lincolnshire - we’re required to raise fluoride levels (a process called fluoridation) to one milligram per litre.

Use our postcode search to find out the level of fluoride in your drinking water and whether it’s artificially fluoridated.

Why is fluoride sometimes added?

Water companies are sometimes asked to add fluoride to improve dental health. The amount of fluoride allowed in drinking water is much lower than found in products such as toothpaste.

Who pays to add fluoride?

Public Health England and the local health authority pay for the fluoridation and equipment - the cost is not part of your water bill.

Who decides to add fluoride?

The final decision sits with the local authorities and the Secretary of State for Health. Water companies, if approached, give technical advice and if asked to do so, will implement a fluoridation scheme in line with the relevant Act and Regulations. The decision to fluoridate (or not fluoridate) is not made by the Water companies.

If you’re a business customer, contact your provider for more information.

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Fluoride