Uranium extraction from alum shale took place at the Ranstad plant between 1965 and 1969. During the 1980s, the decommissioning of the facility began. Kemakta has undertaken several assignments for Svafo and Ranstad Industricentrum AB to calculate dose consequences for various options for managing waste from the decommissioning of buildings used in uranium production. We have calculated the doses from the decommissioning, transportation, and handling of demolition waste, as well as from the dispersion of waste over the long term. These calculations were largely performed using Kemakta’s model, DOS2U. Kemakta’s work formed the basis for the application to the Swedish Radiation Safety Authority (SSM) for permission to decommission the facility and manage the demolition waste.
In the Ranstad project, we also provided the basis for the application for permission to release land that was impacted by the operations from regulatory control. The assignment included delineating the contaminated area, establishing preliminary clearance levels, and conducting supplementary sampling and verification measurements. The work involved the preparation of the following reports: clearance plan, monitoring program, and clearance report. Kemakta also contributed to the development of the decommissioning report.
