The RPII has been maintaining contact with the UK Nuclear Installation Inspectorate (NII) regarding the safety improvement recommendations contained in the RPII's report of December 2000 concerning the storage of high level waste at Sellafield.
The RPII has been informed by BNFL that it has carried out a number of actions on the safety improvement recommendations contained in the RPII report. The analysis of the risk of damage as a result of a severe accident has been substantially completed and some system improvements have been identified. BNFL has discussed and agreed the proposed system improvements with the NII and a programme has been established for their implementation.
BNFL has informed the RPII that a programme for the random checking of plant personnel for alcohol and drug abuse will be introduced at all BNFL installations from 1 April 2001. The RPII has also been informed by BNFL that a new procedure has been introduced which will reduce substantially the risk of hydrogen build-up in the high level radioactive waste tanks. Purging equipment has been installed and routine purging of the tanks with compressed air is being carried out. A number of improvements to the tanks cooling water systems have been identified and agreed with the NII. Some improvements have also been made to the data reliability of components and more will follow.
The response by BNFL to the RPII recommendations has been positive to the extent that several improvements have been made and work is still ongoing. The improvements carried out by BNFL to date are a direct result of the RPII's examination of the BNFL safety documentation relating to the storage of the high level waste and endorses the significance and importance of the RPII's examination. I have requested the RPII to keep me informed of any further improvements carried out by BNFL on foot of the RPII report.