BBC
The Magnox Swarf Storage Silo astatine Sellafield is considered "Britain's astir hazardous building"
The UK's largest atomic tract could proceed leaking radioactive h2o until nan 2050s, MPs person warned, while its clean-up operations struggle to advancement quickly enough.
The Public Accounts Committee (PAC) criticised nan velocity of decommissioning activity astatine Sellafield successful Cumbria, citing "cost overruns and continuing information concerns" in a study published connected Wednesday.
Although nan committee noted location were "signs of improvement", PAC president Sir Geoffrey Clifton-Brown said Sellafield continued to coming "intolerable risks".
The Nuclear Decommissioning Authority (NDA) acknowledged nan leak astatine its Magnox Swarf Storage Silo (MSSS) was its "single biggest biology issue".
The MSSS, which nan NDA described arsenic "the astir hazardous building successful nan UK", has been leaking radioactive h2o into nan crushed since 2018, releasing capable to capable an Olympic swimming excavation each 3 years.
It is apt to proceed leaking until nan oldest conception of nan building has been emptied successful nan 2050s, astir a decade later than antecedently expected.
Sir Geoffrey said: "As pinch nan conflict against ambiance change, nan sheer standard of nan hundred-year timeframe of nan decommissioning task makes it difficult to grasp nan immediacy of information hazards and costs overruns that delays tin have.
"Every time astatine Sellafield is simply a title against clip to complete useful earlier buildings scope nan extremity of their life.
"Our study contains excessively galore signs that this is simply a title that Sellafield risks losing."
PA Media
Sellafield ceased generating energy successful 2003
Pointing to nan truth that Sellafield Ltd had missed astir of its yearly targets for retrieving discarded from buildings, including nan MSSS, nan committee warned: "The consequence of this underperformance is that nan buildings are apt to stay highly hazardous for longer."
A spokeswoman for nan NDA said nan "leak successful nan Magnox Swarf Storage Silo is contained and does not airs a consequence to nan public".
"Regulators judge that nan existent scheme to tackle nan leak is nan astir effective one."
'False dawn'
Sir Geoffrey said it was of "vital value that nan authorities grasp nan regular urgency of nan activity taking spot astatine Sellafield and shed immoderate consciousness of a far-off day of completion for which no-one presently surviving is responsible".
"Sellafield's risks and challenges are those of nan coming day.
"There are immoderate early indications of immoderate betterment successful Sellafield's delivery, which our study notes.
"The authorities must do acold much to clasp each progressive instantly accountable to guarantee these do not correspond a mendacious dawn, and to amended safeguard some nan nationalist purse and nan nationalist itself."
Sellafield ceased generating energy successful 2003 and, successful summation to activity cleaning up nan site, now processes and stores atomic discarded from powerfulness plants astir nan UK.
The authorities plans to create an underground geological disposal installation (GDF) to shop atomic discarded for nan thousands of years it will return to go safe.
But nan committee said delays successful creating nan GDF, which is now not expected to beryllium complete until nan precocious 2050s, meant much costs for Sellafield.
NDA main executive David Peattie said it welcomed nan report, adding it took nan "findings earnestly and nan information of nan tract and nan wellbeing of our group will ever beryllium our highest priorities".
"We are pleased they recognise improvements successful delivering awesome projects and that we are safely retrieving discarded from each 4 highest hazard facilities."
PA Media
The PAC expressed interest that location was a "sub-optimal culture" astatine Sellafield
The PAC expressed interest location was a "sub-optimal culture" astatine Sellafield and called connected nan NDA to people accusation astir nan prevalence and cognition of bullying successful its yearly report.
The NDA spokeswoman said: "We're committed to an unfastened and respectful civilization and we've taken decisive action to alteration this, including strengthening our whistleblowing policy."
The Department for Energy Security and Net Zero said it "expected nan highest standards of information and information arsenic erstwhile atomic sites are dismantled, and nan regulator is clear that nationalist information is not compromised astatine Sellafield".
"This is underpinned by monthly capacity reviews and accrued work for overseeing awesome task performance, enabling much nonstop scrutiny and intervention," a spokeswoman for nan section said.
"We person zero tolerance of bullying, harassment and violative behaviour successful nan workplace - we expect Sellafield and nan NDA to run connected this basis, analyse allegations and return robust action erstwhile needed."