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Radiation Protection Dosimetry 68:77-82 (1996)
© 1996 Oxford University Press

Radioactive Waste Disposal

M. Folger

Nirex's task is the deep disposal of between 200,000 and 275,000 m3 of intermediate level radioactive waste. The modelling of the disposal concept indicates that 99.9% of the radioactivity will be contained by the multi-barrier system leaving long-lived species, such as 36Cl, 129I and 238U daughter products, as potential sources of exposure through the groundwater pathway. Studies, which started in 1989, show that the potential repository site near Sellafield holds good promise, with a projected peak level of risk within the regulatory target of 10-6 per year. A five month planning inquiry into the next stage of investigation - the 650 - 900 m deep Rock Characterisation Facility - has just been completed. Subject to obtaining planning permission for both the rock laboratory and any repository proposal, first waste emplacement could be in 2012. The Nirex programme is consistent with overseas practice and the policy of deep disposal, reaffirmed by Government in 1995, is also consistent with the ethical principle of sustainable development.


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