Press Release

Independent tests show tap water not affected by Buncefield fire

Results of independent tests show that there is no evidence of drinking water being contaminated as a result of the Buncefield fire.

In May 2006 the Environment Agency published results of samples taken from groundwater in the vicinity of the Buncefield Oil Depot. The Agency’s results showed traces of PFOS (Perfluorooctane Sulphonate) in groundwater at, and near, the site of the fire although it was not clear if these findings were linked to the escape of firewater following the fire. The Environment Agency stated that their findings were “variable and inconsistent and therefore may be unreliable”.

Although the Agency does not sample drinking water, the publication of their environmental results gave rise to consumer concern. To reassure consumers the Inspectorate arranged for independent checks to be made using fully trained drinking water sampling officers (employed by Three Valleys Water) under the supervision of the Inspectorate.

These samples were analysed by two laboratories, one selected by the Drinking Water Inspectorate as independent of all parties concerned.

PFOS was not found in any of these independently supervised samples of raw water sources and treated drinking water. Consumers can therefore be reassured that there is no evidence that their tap water has been contaminated. Furthermore there is no evidence that the water company’s sources of water in the vicinity of Buncefield have been adversely affected as a consequence of fire fighting water escaping from the site.

The Inspectorate is satisfied that the testing methodology applied to these samples meets the rigorous standards of quality control required by law for the testing of drinking water. Additionally the Inspectorate is satisfied that the steps taken by the water company at the time of the fire and subsequently were appropriate and these precautionary measures will remain in place for as long as is necessary to safeguard drinking water supplies. A multi-agency public health protection team will continue to receive and review all relevant information concerning drinking water supplies and sources.

These independent results have been made available to the Environment Agency.

Drinking Water Inspectorate
16th June 2006