Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, to set out the (a) volume, (b) isotopic content and (c) origin of the wastes stored at each licensed nuclear site.

Information regarding the volume, content and origin of radioactive wastes stored at each licensed nuclear site is made available in the UK Radioactive Waste Inventory (UKRWI), which is jointly published by the Department and the Nuclear Decommissioning Authority. The UKRWI report and all supporting documentation are published at http://ukinventory.nda.gov.uk/.

The UKRWI lists over 1,300 waste streams. Each has a supporting Waste Stream Data sheet, which includes detailed information on its origin and physical, chemical and radiological properties. This includes information on the presence of 114 key radionuclides (radioisotopes) that are particularly important for radioactive waste management and disposal.