Supporting the Water Safety Plan (WSP) approach with the Failure Experience Improvement System (FEIS)

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Courtesy of IWA Publishing

The Water Safety Plan (WSP) aims to ensure safe drinking water through risk assessment and preventive risk management which cover all steps of the water supply from catchment to the consumer. This approach requires a comprehensive hazard assessment including the identification and prioritisation of potential hazardous events. The Failure Experience Improvement System (FEIS) supports this key step in developing a WSP. The FEIS can assist water utilities in identifying the causes and effects of hazardous events, determining priorities for risk management and locating vulnerable points in their water supply system. This is achieved through the systematic collection of failure causes and their effects in a database and an analysis of the resulting failure network using Social Network Analysis (SNA). The FEIS provides both graphical visualisation of failure propagation and analytical indicators to evaluate hazardous events. This paper demonstrates the use of the FEIS to support the WSP approach.

Keywords: failure management, network analysis, risk management, water safety plan

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