The Department for Environment, Food and Rural Affairs (Defra) leads on flood and coastal erosion risk management in England. Defra work with other government departments to develop and revise policies. These policies then delivered by Risk Management Authorities (RMAs).
The Flood and Water Management Act 2010 requires these Risk Management Authorities to:
Co-operate with each other.
Exchange information.
Work in a consistent manor.
As detailed in the Flood Risk Management Act 2010, the Environment Agency has a strategic overview of all sources of flooding and coastal erosion.
It is also responsible for:
Flood and coastal erosion risk management activities on Main Rivers and the coastline
Regulating reservoir safety
Working in partnership with the Met Office to provide flood forecasts and warnings.
Looking for opportunities to maintain and improve the environment for people and wildlife.
The Lead Local Flood Authorities, or LLFAs for short, are county councils and unitary authorities. LLFAs lead in managing local flood risks including risks of flooding from surface water, groundwater and Ordinary Watercourses.
District and Borough Councils are key in local flood risk management.
They can carry out flood risk management works on minor watercourses.
They work in partnership with LLFAs and other Risk Management Authorities to ensure risks are managed effectively , including making decisions on development in their area.
Water and sewerage companies manage the risk of flooding from water supply and sewerage facilities and flood risks from the failure of their infrastructure.
They maintain and manage their water supply and sewerage systems to manage the impact and reduce the risk of flooding and pollution to the environment.
Where there is frequent and severe sewer flooding, sewerage undertakers are required to address this through their capital investment plans, which are approved and regulated by Ofwat.
IDBs are independent public bodies responsible for managing water levels in low-lying areas.
They are the land drainage authority within their districts and their functions include supervising land drainage and flood defence works on ordinary watercourses.
More information about IDBs can be found here.