24 July 2014
On Thursday 10 July, Dounreay Site Restoration Limited (DSRL) notified SEPA of the detection of a small quantity of radioactivity in a sample of sludge. The sample was taken from a manhole within a foul drain system, outwith and upstream of the Dounreay site.
Following the initial notification DSRL has been undertaking subsequent analysis work to help determine the source of the radioactivity. SEPA is in regular contact with DSRL, and they will continue to update us.