§ Mr. Llew Smith
To ask the Secretary of State for Scotland what information he has received from SEPA in respect of their recent assessment of the total radioactive inventory put into(a) the access shaft and (b) the storage silo at Dounreay. 
§ Mr. Macdonald
The United Kingdom Atomic Energy Authority (UKAEA) has recently revised its assessment of the total inventory of radioactive material disposed of to the shaft. I understand that this report has not yet been issued to SEPA but it is expected in the near future. With regard to the silo, the regulatory responsibility rests with the Health and Safety Executive (HSE). An inventory of the contents of the silo does exist and is currently the subject of refinement by the UKAEA.