Waste arisings do not occur at a constant rate and are difficult to determine as they are dependent on a number of factors such as equipment being declared as obsolete and legacy items being returned following site closures. The site is forecast to produce only small quantities of ILW, and volumes are estimated to 2063.
On this page
Site Owner
Information is presented about wastes that existed at HMNB Portsmouth at the stock date (1 April 2025) and were forecast to arise after this date.
For background information about this site owner, please refer to the Site Information Sheets in the 2025 UK Radioactive Waste Inventory report.
The following page presents information about radioactive wastes at the specific site selected.
Information about spent fuel and nuclear materials is presented separately in the relevant 2025 Inventory report. For official figures and essential information about how the data has been produced, always refer to the UKRWI 2025 published reports.
From Amersham and AWE Aldermaston to Winfrith and Wylfa – you can source site-by-site
waste inventory data from sites across the UK nuclear industry here.
