The UK has a legacy of over 1,200 waste streams, and a policy history of largely neglecting the active management of decommissioning and wastes until the setting up of the Nuclear Decommissioning Authority in 2005. Most wastes will arise in the course of more than 100 years in the future. Policy for higher activity wastes is to use Deep Geological Disposal, but progress has been slow, and no repository is likely to be available before, at best, 2040.
This paper takes stock of growing waste volumes in the UK and the country's challenge of facing complex waste management:
"NUCLEAR WASTE MANAGEMENT IN THE UK: Growing volumes and solutions" for Greens/EFA, April 2019