Question to the Department for Environment, Food and Rural Affairs:

To ask His Majesty's Government, following the selection of the Teddington direct river abstraction proposal, what investigations they expect Thames Water to undertake regarding per- and polyfluoroalkyl substances (PFASs) in the water courses in England and Wales, with particular reference to treated effluent at Mogden Sewage Treatment Works, further to data collected by the Centers for Disease Control and Prevention in the USA concerning connections between women diagnosed with some hormonally driven cancers and exposure to certain PFASs in household and industrial products.

For Teddington direct river abstraction proposal to be taken forward Thames Water will be required to obtain an abstraction licence and permit to discharge from the Environment Agency. These set out the conditions under which abstraction is authorised to take place and the standards to which the discharged effluent must be treated, ensuring it is treated to a high standard to meet environmental and human health quality standards. The Environment Agency regulates discharge permits by assessing the quality of the effluent discharged against set compliance limits. Thames Water will need to undertake any investigations necessary to meet those regulatory requirements.