Efforts to retrieve radioactive waste from ageing services at Sellafield — the UK’s most hazardous nuclear web site — should not continuing quick sufficient, with MPs warning that additional delays might push the price of decommissioning past the present £136 billion estimated invoice.
A 4 June report by the Public Accounts Committee (PAC) criticises gradual progress in tackling main environmental dangers on the Cumbria web site and questions whether or not current enhancements mark real progress or “one other false daybreak.”
Regardless of earlier warnings in 2018 that the federal government wanted a firmer grip on the location’s nuclear challenges, the PAC says Sellafield Ltd has failed to fulfill key targets for eradicating waste from legacy buildings, together with the Magnox Swarf Storage Silo (MSSS). The silo has been leaking radioactive water into the bottom since a minimum of 2018, at a charge that would fill an Olympic swimming pool each three years, in accordance with the report.
The Nuclear Decommissioning Authority (NDA) acknowledged the leak as its “single largest environmental subject” however maintains the radioactive particles are “contained” within the soil and pose no danger to the general public.
The PAC expressed concern that persistent underperformance by Sellafield Ltd means the location will stay hazardous for longer than essential. The committee is looking on the federal government to make clear the way it intends to carry each the NDA and Sellafield Ltd to account for addressing these pressing dangers.

Storage disaster looms
Past the fast issues of safety, the report warns of escalating prices linked to delays in developing a long-term Geological Disposal Facility (GDF) to accommodate high-level nuclear waste. Initially anticipated by 2040, the GDF is now unlikely to be prepared earlier than the late 2050s. Within the meantime, Sellafield could have to construct further interim storage buildings, every costing between £500 million and £760 million.
Though websites in Cumbria and Lincolnshire have been into consideration for the GDF, the PAC notes that Lincolnshire County Council has signalled plans to withdraw from the method.
Asset failures undermine progress
Whereas the report acknowledges early indicators of improved challenge supply, together with higher planning and contractor administration, it highlights severe failures in asset oversight.
It references a paused £127 million challenge to refurbish an onsite laboratory. This was halted because of a misunderstanding of the situation of the constructing’s laboratories, and a failure to carry out the suitable remedial work wanted to revive them. “The failure of the Alternative Analytical Challenge illustrates the necessity to enhance asset administration at Sellafield,” says the doc.
The authors additionally level to a rising backlog of upkeep duties, noting that “malfunctioning gear has restricted Sellafield Ltd’s capacity to retrieve waste from its oldest services”, whereas security specialists have warned that “the deteriorating situation of belongings is making the location more and more unsafe.”
The PAC additionally raises considerations over office tradition at Sellafield, noting that “the exceptionally hazardous nature of lots of Sellafield’s actions” means workers and contractors should really feel empowered to report points with out concern. The NDA reportedly paid out over £377,000 in employment-related claims in 2023–24. The report additionally notes that 16 non-disclosure agreements (NDAs) have been signed at Sellafield over the previous three years.
PAC Chair Sir Geoffrey Clifton-Brown MP described the state of affairs as “insupportable,” saying the UK is going through “world-class” dangers at Sellafield with out delivering world-class administration in response.
“Day by day at Sellafield is a race in opposition to time to finish works earlier than buildings attain the tip of their life.” he mentioned. “Our report incorporates too many indicators that it is a race Sellafield dangers dropping.”
The Authorities, he mentioned, “should shed any sense of a far-off date of completion for which no-one at present dwelling is accountable. Sellafield’s dangers and challenges are these of the current day.”