
British Energy, the country's biggest operator of nuclear power stations, breached environmental regulations 21 times during 2003 and has been told that its failures are "unacceptable".
The Government's chief environment watchdog has written to directors of BE and told them to make "major improvements in management, systems and culture".
BE, which provides nearly a quarter of Britain's electricity, said that it accepted the criticisms of the agency and had instituted a range of changes which would transform its operations. "We have set up a new system in the company with the close cooperation of the agency to improve standards across the fleet [power stations]," said a BE spokesperson.
The Environment Agency confirmed that the company had reacted "positively" by reorganising responsibility for environmental management and planned environmental improvements at each site.
The Guardian website has further information.