Risk reduction of climate change related risks in water systems - Guidance to risk treatment step

This report gives guidance for developing the step of risk treatment within the water cycle safety planning (WCSP) framework, including guidance on the selection of measures to mitigate risks associated with events for which risk level was estimated as non-acceptable; and, evaluation of selected measures using multiple criteria, not only from an economic perspective but also in terms of performance (e.g. technologic, functional, environmental and social) and effectiveness in reducing risk. Both qualitative and quantitative approaches are mentioned.
The methodology adopted in this report has been divided into three main parts: identification of risk reduction measures; comparison and selection of alternative risk reduction measures; assessment of residual risk; and, recommendations for developing a risk reduction program. Finally, examples of application in demonstration cases and of quantification of measures are presented.