Fluoride occurs naturally in all water supplies and the level of fluoride can vary depending on the geology of the area.
In the Anglian Water region, the highest levels of naturally occurring fluoride are found in the Essex area and the lowest levels in north-west Norfolk. Fluoridation is the term used to describe the action of elevating the naturally occurring level of fluoride in water to a chosen higher level.
In England, fluoridation schemes target the final level of fluoride at one milligramme per litre of water (equivalent to one part per million). Fluoridation is undertaken at the request of certain Strategic Health Authorities and is carried out in accordance with strict legal guidelines.
History
When Anglian Water was privatised in 1989, a number of fluoridation schemes were inherited from its predecessor (Anglian Water Authority). These schemes have been in operation since the late 1960s.
For details about the concentration of fluoride in your water supply, and/or to confirm whether the supply to your property is artificially fluoridated, please use the postcode search and refer to the summary report for your supply zone.
Fluoride used for fluoridation
The chemicals and processes used to treat drinking water for public supply comply with the Water Supply (Water Quality) Regulations 2000 as amended, and with government guidelines.
Code of practice for fluoridation
Anglian Water work to a Code of Practice for fluoridation which sets the guidance on minimum standards for the water industry and is monitored by the Drinking Water Inspectorate (the regulator for drinking water quality).
Cost of fluoridation
The cost of fluoride and associated equipment is paid by the requesting Health Authority, not the bill paying customers.
Recent legislation
Under the Water Industry Act 1991, the decision to request a water company to fluoridate supplies was made by the District Health Authorities. A water company could then, under law, fluoridate the relevant supply.
Current legislation
The Water Act 2003 (section 58) made a change to the legal position regarding fluoridation. Following enforcement of this section, it is now the water companies duty to fluoridate supplies, if so requested by a Strategic Health Authority.
The Strategic Health Authority would not make such a request until there had been a local consultation and they agree to indemnify the water company against costs. Further information on fluoridation can be obtained from your Strategic Health Authority.