Question

To ask Her Majesty’s Government what calculations they have made about the size and scale of potential security, environmental and public safety consequences of any potential failure in nuclear waste storage systems at Sellafield; and when they will publish details of those calculations.

Government and licensees take very seriously the need to decommission legacy facilities, including those at Sellafield. This work is underpinned by periodic safety reviews, which are assessed by the Office for Nuclear Regulation (ONR). In addition to this, nuclear operators have a legal obligation under the Radiation (Emergency Preparedness and Public Information) Regulations 2001 (REPPIR) to identify, evaluate and assess their hazards and risks, which enables the ONR to determine the off-site emergency planning area in line with its assessment principles:

http://www.onr.org.uk/depz-onr-principles.htm.