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 ConferenceNovember 2-4 2010, Kuching, Malaysia

Failure Experience Improvement System (FEIS)

Concepts used (1): Failure reporting systems

Water Safety ConferenceNovember 2-4 2010, Kuching, Malaysia

NASA Aviation Safety Reporting System

Failure Experience Improvement System (FEIS)

Concepts used (2): Social network analysis

Water Safety ConferenceNovember 2-4 2010, Kuching, Malaysia

Failure Experience Improvement System (FEIS)

Collection of failure events from 6 Austrian water utilities

Potential failure events from literature and guidelines

Dat

a so

urce

Failure Experience Improvement System (FEIS)

Spring collection areaWater quality

Microbiological Contaminationi. category

ii. system element

iii. failure event

Dat

abas

eD

ata

sour

ce

Collection of failure events from 6 Austrian water utilities

Potential failure events from literature and guidelines

Failure Experience Improvement System (FEIS)

Spring collection areaWater quality

Microbiological Contaminationi. category

ii. system element

iii. failure event

Dat

a so

urce

Dat

abas

e

Collection of failure events from 6 Austrian water utilities

Potential failure events from literature and guidelines

Failure Experience Improvement System (FEIS)

Spring collection areaWater quality

Microbiological Contaminationi. category

ii. system element

iii. failure event

Dat

a so

urce

Dat

abas

e

Collection of failure events from 6 Austrian water utilities

Potential failure events from literature and guidelines

Failure Experience Improvement System (FEIS)

Spring collection areaWater quality

Microbiological Contaminationi. category

ii. system element

iii. failure event

Dat

a so

urce

Dat

abas

e

Collection of failure events from 6 Austrian water utilities

Potential failure events from literature and guidelines

Failure Experience Improvement System (FEIS)

Spring collection areaWater quality

Microbiological Contamination

short time lagmedium time laglong term time lag

low impactmedium impactstrong impact

Dat

a so

urce

Dat

abas

e

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

Service connection

Service connectionWater quality

Service connectionWater quality

Service connectionWater quality

Microbiological contamination

Service connectionWater quality

Microbiological contamination

Distribution pipesWater quality

Microbiological contamination

Service reservoirWater quality

Microbiological contamination

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesWater quality

Introduction of contaminants

Distribution pipesPipework

Leakage and negative pressure

Service connectionWater quality

Microbiological contamination

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

Service connectionWater quality

Microbiological contamination

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

WellWater quality

Microbiological contamination

Abstraction areaGroundwater

Microbiological contamination

Abstraction areaWell head protection area

Animal husbandry

Abstraction areaWell head protection area

Unregulated land use

WellWell shaft

Microbiological contaminationWell

Well shaftExcreta or dead insects /vermin

WellWell shaft

Intrusion of insects /vermin

WellWater quality

Microbiological contamination

Abstraction areaWell head protection area

Unregulated land use

WellWell shaft

Intrusion of insects /vermin

WellWater quality

Microbiological contamination

Abstraction areaWell head protection area

Unregulated land use

WellWell shaft

Intrusion of insects /vermin

WellWell shaft

Intrusion of insects /vermin

WellWell shaft

Vermin-proofing screen missing / damaged

Service connectionWater quality

Microbiological contamination

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

Service connectionWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

UV disinfectionWater quality

Disinfection insufficient

UV disinfectionUV dosage

Below minimum

UV disinfectionPower supplyInterrupted

Service connectionWater quality

Microbiological contamination

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

Service connectionWater quality

Microbiological contamination

Distribution pipesPipework

Leakage and negative pressure

WellWater quality

Microbiological contamination

Chlorine disinfectionWater quality

Disinfection insufficient / not applied

Distribution pipesPipework

Leakage and negative pressure

Distribution pipesPE pipes

Water leakage

Distribution pipesPE pipes

Pipe burst

Distribution pipesPE 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 ConferenceNovember 2-4 2010, Kuching, Malaysia

Failure Experience Improvement System (FEIS)

Indicator: System influence

Water Safety ConferenceNovember 2-4 2010, 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