Oldbury

Oldbury occupies 39 hectares on the bank of the River Severn in South Gloucestershire. The site moved into its decommissioning phase following the completion of defueling in 2016.

An alternative electrical supply has been installed on the site, allowing disconnection from the national grid.

The site’s priorities are to complete the former spent fuel storage ponds decommissioning work and to retrieve, package and condition other forms of radioactive waste. Conventional demolition work will also begin to reduce the footprint of the site.

The now redundant silt lagoon adjacent to the site is now being reviewed by the Nuclear Decommissioning Authority as a flagship sustainable nature development.

On this page
Site Owner

Information is presented about wastes that existed at Oldbury 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.

Waste groupings

Activated metals
Activated other materials
Asbestos & other insulation materials
Concrete & rubble
Conditioned
Contaminated metals
Contaminated other materials
Desiccant & catalysts
Flocs
Fuel cladding & miscellaneous wastes
Fuel element debris
Fuels & uranium residues
Graphite
High level waste
Inorganic ion exchange materials
Miscellaneous contaminated materials
Mixed wastes
Oils & other fluids
Organic ion exchange materials
Plutonium contaminated materials
Raffinate
Sludges
Soil
Uranium & thorium contaminated material
Total
stored
waste
Total stored waste by waste type
Breakdown of total stored waste: Activated metals 123.2m³, Concrete & rubble 8.87m³, Conditioned 1m³, Contaminated metals 182.07m³, Fuel element debris 468.04m³, Miscellaneous contaminated materials 13.18m³, Oils & other fluids 22.46m³, Organic ion exchange materials 10.29m³, Sludges 25.94m³, Soil 0.13m³,
Future
arising
waste
Future arising waste by waste type
Breakdown of future arising waste: Activated metals 14623.7m³, Asbestos & other insulation materials 3m³, Concrete & rubble 58752.6m³, Contaminated metals 2847.78m³, Graphite 5368m³, Miscellaneous contaminated materials 1275.52m³, Oils & other fluids 24.37m³, Sludges 1.84m³, Soil 1353.06m³,
Lifetime
packaged
waste
Lifetime packaged waste by waste type
Breakdown of lifetime packaged waste: Activated metals 14746.9m³, Asbestos & other insulation materials 3m³, Concrete & rubble 58761.4m³, Conditioned 1m³, Contaminated metals 3029.85m³, Fuel element debris 468.04m³, Graphite 5368m³, Miscellaneous contaminated materials 1288.7m³, Oils & other fluids 46.83m³, Organic ion exchange materials 10.29m³, Sludges 27.78m³, Soil 1353.19m³,

Waste categories

Showing results for data originating from Oldbury.

(1) 0.81 m3 reported ILW volume (5.27 m3 packaged volume; 4 packages) are stored at Berkeley.

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Forecast waste arisings

Location

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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.