The Water Act 2003 amended the Reservoirs Act 1975 to include the requirement for reservoir flood plans. As part of his extensive review following the floods of 2007, Sir Michael Pitt recognised the need for inundation maps to be provided to local resilience forums.

Defra has instructed the Environment agency to produce inundation maps for all reservoirs subject to the Act by December 2009.

Follow this  link to more information on flood plans and inundation plans .