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

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Presentation transcript:

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

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.

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

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

Failure Experience Improvement System (FEIS) Concepts used (1): Failure reporting systems Water Safety Conference November , Kuching, Malaysia NASA Aviation Safety Reporting System

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

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

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

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

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

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

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

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

Service connection

Water quality

Service connection Water quality

Service connection Water quality Microbiological contamination

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Failure Experience Improvement System (FEIS) Indicator: System dependence Water Safety Conference November , Kuching, Malaysia

Failure Experience Improvement System (FEIS) Indicator: System influence Water Safety Conference November , Kuching, Malaysia

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

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