Appendix CRF - Part 3 - Northamptonshire County Council

2
VERSION 3, 14 July 2009
year, and consequently doses to persons off-site are not considered in detail in this risk
assessment.
1.2 RISK ASSESSMENT REQUIREMENTS
The purpose of this risk assessment is to identify the measures needed to restrict the
exposure of employees and other persons to ionising radiation from the controlled burial
waste (LLW) operations at ENRMF.
IRR99 Regulation 7 also requires that potential radiation accidents are identified and
quantified, and that steps are taken to prevent accidents, limit the consequences of any
accidents that do occur, and to provide any necessary information, instruction, training and
equipment to deal with such accidents.
Paragraph 44 of the Approved Code of Practice to IRR99 recommends that the following
matters should be considered when carrying out this risk assessment. The parts of this
document that correspond to these matters are listed in the table below.
Nature of the radiation source 1.2
Estimated radiation dose rates to which anyone can be exposed 2.1
Likelihood of contamination arising and being spread 2.2
Results of previous personal dosimetry or area monitoring 2.1.1
Advice from manufacturers or suppliers 4.5
Engineering control measures and design features 4.1
Any planned systems of work 4.1, 4.4.1
Estimated levels of airborne and surface contamination 2.2.1, 3
Effectiveness and suitability of personal protective equipment 4.5
Extent of unrestricted access to working areas where dose rates or
contamination levels are likely to be significant
Possible accident situations, their likelihood and potential severity 3
The failure of control measures or systems of work 3
Steps to prevent identified accident situations or limit their consequences 3, 4.1.3
WS010001/ENRMF/CONSAPPCRF 643
4.2