1. Lukas, A., Mayr, E., Richard, L. and Perfler, R. Supporting the Water Safety Plan (WSP) approach with the Failure Experience Improvement System (FEIS) Water Safety Conference 2010

2. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Identify control measures Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures Water Safety Plan WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation.

3. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Identify control measures Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation. Failure Experience Improvement System Water Safety Plan

4. Failure Experience Improvement System (FEIS) Objective  Collect  Analyse  Share failure experiences  Identify and avoid future failures Water Safety Conference November 2-4 2010, Kuching, Malaysia

5. Failure Experience Improvement System (FEIS) Concepts used (1): Failure reporting systems Water Safety Conference November 2-4 2010, Kuching, Malaysia NASA Aviation Safety Reporting System

6. Failure Experience Improvement System (FEIS) Concepts used (2): Social network analysis Water Safety Conference November 2-4 2010, Kuching, Malaysia

7. Failure Experience Improvement System (FEIS)  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines Data source

8. Failure Experience Improvement System (FEIS) Spring collection area Water quality Microbiological Contamination i.category ii.system element iii.failure event Database Data source  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines

9. Failure Experience Improvement System (FEIS) Spring collection area Water quality Microbiological Contamination i.category ii.system element iii.failure event Data source Database  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines

10. Failure Experience Improvement System (FEIS) Spring collection area Water quality Microbiological Contamination i.category ii.system element iii.failure event Data source Database  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines

11. Failure Experience Improvement System (FEIS) Spring collection area Water quality Microbiological Contamination i.category ii.system element iii.failure event Data source Database  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines

12. Failure Experience Improvement System (FEIS) Spring collection area Water quality Microbiological Contamination short time lag medium time lag long term time lag low impact medium impact strong impact Data source Database  Collection of failure events from 6 Austrian water utilities  Potential failure events from literature and guidelines

14. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Identify control measures Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation. FEIS visualisation to identify hazards FEIS Cause-effect chains from source to consumer WSP

17. Service connection

19. Water quality

20. Service connection Water quality

21. Service connection Water quality Microbiological contamination

22. Service connection Water quality Microbiological contamination Distribution pipes Water quality Microbiological contamination Service reservoir Water quality Microbiological contamination Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Water quality Introduction of contaminants Distribution pipes Pipework Leakage and negative pressure

23. Service connection Water quality Microbiological contamination Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Pipework Leakage and negative pressure

24. Service connection Water quality Microbiological contamination Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Pipework Leakage and negative pressure

25. Well Water quality Microbiological contamination Abstraction area Groundwater Microbiological contamination Abstraction area Well head protection area Animal husbandry Abstraction area Well head protection area Unregulated land use Well Well shaft Microbiological contamination Well Well shaft Excreta or dead insects /vermin Well Well shaft Intrusion of insects /vermin

26. Well Water quality Microbiological contamination Abstraction area Well head protection area Unregulated land use Well Well shaft Intrusion of insects /vermin

27. Well Water quality Microbiological contamination Abstraction area Well head protection area Unregulated land use Well Well shaft Intrusion of insects /vermin

28. Well Well shaft Intrusion of insects /vermin Well Well shaft Vermin-proofing screen missing / damaged

29. Service connection Water quality Microbiological contamination Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Pipework Leakage and negative pressure

30. Service connection Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Pipework Leakage and negative pressure Well Water quality Microbiological contamination

31. Chlorine disinfection Water quality Disinfection insufficient / not applied UV disinfection Water quality Disinfection insufficient UV disinfection UV dosage Below minimum UV disinfection Power supply Interrupted

32. Service connection Water quality Microbiological contamination Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied Distribution pipes Pipework Leakage and negative pressure

33. Service connection Water quality Microbiological contamination Distribution pipes Pipework Leakage and negative pressure Well Water quality Microbiological contamination Chlorine disinfection Water quality Disinfection insufficient / not applied

34. Distribution pipes Pipework Leakage and negative pressure Distribution pipes PE pipes Water leakage Distribution pipes PE pipes Pipe burst Distribution pipes PE pipes Damage during trenchless pipe laying

38. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Identify control measures Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation. Prioritise failure events using analytical indicators: FEISWSP  System dependence  System influence

39. Failure Experience Improvement System (FEIS) Indicator: System dependence Water Safety Conference November 2-4 2010, Kuching, Malaysia

40. Failure Experience Improvement System (FEIS) Indicator: System influence Water Safety Conference November 2-4 2010, Kuching, Malaysia

41. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Identify control measures Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation. FEISWSP  FEIS visualisation to identify hazards  Cause-effect chains from source to consumer  Prioritise failure events using analytical indicators

42. Assemble the team Describe the system Hazard assessment and risk characterization Assess the system Define monitoring of control measures Verification Develop supporting programmes Prepare management procedures Establish documentation and communication procedures WHO. (2006). Guidelines for Drinking-water Quality. First Addendum to Third Edition (Volume 1). Geneva: World Health Organisation. FEISWSP Additional failure events (expandable database) Identify control measures