What did the regulator find at this site?
The Office for Nuclear Regulation licenses 36 sites and publishes inspection records with a rating for each licence condition it checks.
The regulator told Sizewell C to arrange lifetime storage for its inspection data.
Amber
ONR's rating for Sellafield's late test of a neutron monitor, a safety mechanism, after a May 2026 inspection. ONR, Jun 2026
2,100 litres a day
Contaminated water leaking from the Magnox Swarf Storage Silo. A testing facility is over 70 years old. National Audit Office, Oct 2024
58 to 129 months
How late four Sellafield projects under way in 2018 now run, at £1.15bn more. National Audit Office, Oct 2024
What Savitram does in nuclear.
- See
Show ONR ratings and incident statements per site, beside your outage and inspection data.
- Know
Follow ONR enforcement records, NDA plans, Sellafield awards and new nuclear tenders.
- Comply
Draft licence condition 6, 25 and 28 evidence from your records: tests due, done and late.
- Plan
Plan decommissioning and life extension using the NDA business plan, the waste inventory and your condition data.
The data behind every nuclear record.
Public registers, read on each publisher's own schedule, joined with your data and Savitram's data.
- ONR inspection recordsOffice for Nuclear Regulation · Several a month
- Public register of site licenseesOffice for Nuclear Regulation
- Sellafield environment and safety reportsSellafield Ltd · Yearly and quarterly
- NDA business plan and annual reportNDA · Yearly
- Radioactive Waste and Materials InventoryNDA and DESNZ · Every three years
- Radioactivity in Food and the EnvironmentEA, FSA, FSS, NRW, SEPA and Cefas · Yearly
What is coming up.
- 13 Nov 2026Sellafield Ltd's deadline to meet an ONR improvement notice.
- Dec 2026The Rolls-Royce SMR design assessment is expected to finish.
- 1 Mar 2027Wylfa early-works tender notice expected, £730m to £1.1bn.
Who uses it.
Heads of asset management. Heads of information management. Nuclear safety and licensing leads. Digital and quality leads. Programme directors.
We build and run AI systems on your data inside your site security rules, and train your staff to use them, new starters included. The sector needs 40,000 more people by 2030.