Appendix CRF - Part 3 - Northamptonshire County Council

package and additional shielding (for example soil cover on disposed
wastes).
5.7.4 The main source of radiation exposure to the landfill workers under normal
conditions will be external radiation from the packages during handling and
emplacement. The controls are:
Regardless of the requirements of the transport regulations the maximum
dose rate at a specified distance from the package will be limited to a
value that ensures that given the likely number of shipments per year the
dose constraint of 1 mSv/year will not be exceeded under routine
operational conditions.
The maximum concentration of radioactivity in the package is limited by
the waste acceptance criteria and conditions of authorisation.
The package is sealed.
Packages are designed to withstand specified drop tests to withstand
accidents during emplacement or are robust to the conditions of handling
at the landfill.
Incident procedures will be enacted to minimise exposure for accident
conditions, such as dropped loads.
The packages will be handled at a distance using mechanical equipment
with air conditioned cabins (P3 filter equivalent).
Accumulated packages will be set aside in a quarantined area that is
segregated by distance and barriers.
Packages will normally be emplaced in the disposal void immediately
upon receipt.
The working zone and face of the disposal area will be covered with an
adequate covering of cover material (soils) after each emplacement
operation or at the end of the working day in order to reduce external
radiation dose to trivial levels.
A bowser to dowse the waste with water will be on standby wherever
waste is unloaded in case of spillage.
There will be no loose handling or tipping of wastes.
Packages will be placed in the disposal void and will not be tipped.
Monitoring of the package, workplace and worker for external radiation
will be carried out in accordance with an established plan commensurate
with risks.
Monitoring of working areas for surface contamination including
occasional reassurance monitoring of, for example, wheel wash, traffic
routes, gateways and change rooms will be undertaken in accordance
with an established plan commensurate with risks.
Application for disposal of LLW including HV-VLLW under RSA 1993,
for the East Northants Resource Management Facility:
Supporting Information
July 2009
52
WS010001/ENRMF/CONSAPPCRF 371