UCC UK Ltd achieved a significant nuclear power decommissioning milestone for Sellafield Ltd by safely completing a nuclear diving project in its oldest legacy pond, the Pile Fuel Storage Pond (PFSP), located in Cumbria, England. UCC UK Ltd, in partnership with Sellafield Ltd, spent more than four years developing customized procedures, processes and equipment to optimize safety and working conditions for its nuclear divers while minimizing exposure to radioactive materials.