To ask the Secretary of State for Environment, Food and Rural Affairs how many (a) homes and (b) gardens were flooded with sewage in each of the last five years. (114224)

Ofwat is the economic regulator of the water and sewerage industry in England and Wales. It collects information from companies on internal sewer flooding each year. Ofwat began collecting information on external sewer flooding in 2003-04.

Table one sets out the number of properties affected by internal sewer flooding in each of the last five years. This includes both household and non-household properties.

Table two sets out the number of areas experiencing external flooding in each year since 2003-04. This includes highways, curtilages (i.e. gardens, outbuildings, driveways, garages, pathways etc.) and other areas such as car parks and public open spaces. Ofwat does not collect information which specifically relates to the number of gardens experiencing sewer flooding.