Assessment of Drinking Water Risks Due to Flood – Possibility of Integrating Methods
(English)Article in journal (Other academic) Submitted
Floods are complex events and it is widely acknowledged that to manage risks associated with such events a holistic approach is needed. Sectors and activities need to cooperate and coordinate activities. Integrated flood management (IFM) is discussed in the literature and is being implemented in practice. To investigate integration between flood management and a sector commonly affected by floods, we have studied risk assessment methods for floods and for drinking water supply in Sweden. We have analysed nine methods provided by agencies or organisations to see how these consider potential effects of floods on drinking water. For the analysis we use a conceptual model of the assessment chain flood – drinking water system – consumer. We explore possibilities of combining methods for flood and drinking water risk assessment to achieve a more integrated assessment.
We see that effects of floods on drinking water are considered in the methods but in a general way. Although the flood risk assessment methods investigate the potential exposure of assets, the consequences of this exposure are only included in one method and only for physical impact, not water quality risk. In the drinking water methods flood is considered as one among many causes of disturbances and not investigated in detail. More detailed analyses of the actual effects of flood on drinking water are needed as well as consequences for the consumers.
We believe that it is possible to combine methods for flood and drinking water risk assessment to achieve a more holistic image of relevant risks.
Integrated flood management (IFM), Risk assessment, Flood, Drinking water, Consequences of flood on drinking water
Research subject Earth Science with specialization in Environmental Analysis
IdentifiersURN: urn:nbn:se:uu:diva-301888OAI: oai:DiVA.org:uu-301888DiVA: diva2:955567