Link to the study - European Parliament - Europa

Policy Department D: Budgetary Affairs
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For each of the key phases sub-tasks of second level are defined (work packages) as well as their sequence of
implementation. Third and lower level activities are defined, as well as the time and the terms of their
implementation. A detailed schedule is developed. Analysis of the necessary human resources and expenditures
has been done.
According to the Work Breakdown Structure, dismantling activities start in the 'observed area' (OA) and end in
the 'controlled area' (CA). The international experience to start the dismantling from the non-contaminated
systems and equipment is followed. The dismantling of systems by category of contamination follows the next
sequence: category I, category II, category III. Due to the accepted acceleration of the decommissioning process
the dismantling of the activated equipment will be implemented in parallel with the III category equipment
dismantling in the CA.
Dismantling in the OA: In early 2004 the Nuclear regulatory Agency (NRA) issued to Kozloduy NPP a license
series Е, № 00613 for Unit 2 and license series Е № 00707 for Unit 1 operation in operational status E of the
reactor – without production of energy. This reactor status is characterized by absence of fuel in the core and
storage of the fuel in the at-reactor pools. In the beginning of December 2006 NRA introduced changes in the
operational licenses of Units 1 and 2, thus permitting dismantling of systems and equipment, not related to
the safety and not containing radioactive substances over the regulatory clearance levels. Kozloduy NPP
developed and started to implement a 'Dismantling program', which scope is the dismantling of constructions
and system’s components конструкциите of Units 1 and 2, characterized as III-d category for
decommissioning (unnecessary systems that may be isolated and/or dismantled). Since October 2010 NRA
issued to SERAW licenses for operation of Units 1 and 2 as radioactive waste management facilities, subject to
decommissioning. The licenses include activities for dismantling and regulatory clearance of materials. In
2011-2013 SERAW has dismantled large-dimension equipment in Units 1 and 2 Turbine hall, amounting to over
3000 tons from critical groups by Radiological inventory: І – clean materials without potential contamination
and ІІ – clean material with potential contamination, for which clearance criteria are met based on approved by
NRA radionuclide vector.
Dismantling in the CA: The dismantling in the CA will start after obtaining a license for decommissioning of
Units 1 and 2. The development of a project for dismantling of the equipment and systems in the CA is
forthcoming. The project will include reactor vessels and other internal equipment dismantling as well.
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