Transcript Experiences and lessons learned from practical implementation of a

Water Safety
Conference 2010
Mayr, E., Lukas, A., Aichlseder, W. and R. Perfler
Experiences and lessons learned from practical
implementation of a software-supported Water Safety
Plan (WSP) approach
Water Safety Plan
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.
Practical implementation of a Water Safety Plan
for small water utilities (cooperatives)Austria - where is it?:
- in the centre of Europe
- 84.000 km²
- 8 Mio people
Outline
 Background in Austria
 Objectives of the project
 Methodology for implementation
 Conclusions and way forward
You remember???:
- Vienna,
- Mozart, Vienna Waltz,
- Empress Sisi,
- Sound of Music,
- a.o. …..
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Practical implementation of a Water Safety Plan
for small water utilities (cooperatives)
Outline
 Background in Austria
 Objectives of the project
 Methodology for development and implementation
 Outcomes and way forward
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Background in Austria / background of the project (1)
 45% of the population in Austria live in municipalities with
less than 5,000 inhabitants
 decentralized water supply infrastructure –
topography, sparsely populated rural and alpine regions
 90% connected to public water supply
o about 3400 communities/municipalities in Austria
o about 180 municipal associations,
o about 1900 municipal waterworks,#
o about 5800 cooperatives (part of “public water supply”
according with the Austrian Water Act)
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Background in Austria / background of the project (2)
Cooperatives in Upper Austria
 strong historic tradition, originating from farm land and
farmer’s properties
 intermediate between private and municipal supply,
size between 3 to 2,000 supplied households
 in Upper Austria (total population of 1.4 million people)
13.5% of the inhabitants are supplied from 782 cooperatives
 umbrella organization “Upper Austria Water”:
provides support for organization, education and training,
provides services for e.g. water loss management, monitoring
on cost recovery base
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Objectives
 introduce the concept of the WSP to people working in
cooperatives (mostly as volunteers) and
 establish a simple software tool to assist
small water utilities in implementing the WSP approach.
 to gather consistent data for the individual cooperatives
as well as for the umbrella organization
o on risk and quality management and
o to document measures for “regular” and
incident conditions
 reference to relevant guidelines and standards in Austria and
from ”Upper Austria Water” respectively
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Methodology
 set up of an Excel based WSP tool
 implementation of guidelines, e.g.:
o Technical surveillance of drinking-water facilities.
o Emergency supply of drinking water.
o Manual for the introduction of a simple
water quality management system.
o Operation manual for water supply companies
 implementation of the components of the WSP
as suggested by WHO/IWA
 development of the tool in cooperation with end-users,
practical testing phase (3 months) with selected end-users
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Set up of the WSP tool (1)
 tool provides an overview of the required steps,
 explains how to carry out each step and
 guides the user through the three processes:
o system assessment,
o effective operational monitoring and
o management
 link to emergency and crisis management
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Set up of the WSP tool (2)
 34 data sheets
 section for systematic recording of structural data
 data automatically produces an annual water balance and
trend graphs for consumption and water losses (last 10 y)
 calculation of selected water resources performance
indicators
 two features requested by the water cooperatives:
o logging function which records changes in the sheets
(old entry, date/time of change and user) and
o automatic reporting function
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Organization of the data-sheets
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Start page (1)
- user navigates to all
datasheets
- each datasheet
contains information
and guidance on the
required steps
- data entry is organised
in three sections:
(i) inventory,
(ii) hazard assessment
(iii) documentation and
evaluation
INVENTORY
Organisation data
Official notifications
Regulations
Survey diagramm
Water abstraction areas
Water extraction sites
Hand-over points
Storage structures
Mains
Service connections
Inspection points
Treatment facilities
List of gate valves
List of mains sections
Structural data
Water quantity data
Damage statistics
Responsibilities
Emerceny plan
Emergency contacts
Risk assessment
Control measures
HAZARD ASSESSMENT
Hazard identification
DOCUMENTATION AND EVALUATION
Documentation
Service and maintenance
Service and maintenance sheets for on-site documentation
Storage structures
Well
Water pump
Mains damage statistics
Spring
Water meter
Mains revision
Annual survey
Activity log
Start page (1.1)
INVENTORY
Organisation data
Official notifications
Regulations
Survey diagramm
Water abstraction areas
Water extraction sites
Hand-over points
Storage structures
Mains
Service connections
Inspection points
Treatment facilities
List of gate valves
List of mains sections
Structural data
Water quantity data
Damage statistics
Responsibilities
Emerceny plan
Emergency contacts
HAZARD ASSESSMENT
List of gate valves
data
Start Structural
page (1.2)
List of mains sections
Water quantity data
Damage statistics
Emerceny plan
Emergency contacts
Risk assessment
Control measures
Responsibilities
HAZARD ASSESSMENT
Hazard identification
DOCUMENTATION AND EVALUATION
Documentation
Service and maintenance
Service and maintenance sheets for on-site documentation
Storage structures
Well
Water pump
Mains damage statistics
Spring
Water meter
Mains revision
Annual survey
Activity log
Hazards and Risks – used approach (1)
 Hazard identification
o In a first step, potential hazards at every point of the
system are identified
o In order to facilitate the hazard identification, a hazard
catalogue comprising 172 hazards in all categories of the
water supply from source to consumer has been used as a
reference check-list.
o Every identified hazard is listed, verbally described and its
position is specified.
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Hazards and Risks – used approach (2)
 Risk assessment by using a simple risk scoring matrix.
Simplified form of a Failure Mode and Effects and Criticality
Analysis (FMECA). 3 factors to determine the risk:
o probability of occurrence of the hazardous event:
unlikely (once in 100 years), rare (once in 20 years) and
frequent (once in two years)
o probability of detection of the hazard:
easily (without any help),
medium (detectable through service and maintenance) and
hardly (not detectable in normal operation)
o impacts on the consumer: marginal (non significant), rare
(noticeable, supply can be continued with considerable
effort) and heavy (catastrophic, supply cannot be assured)
Set up of activities and control measures
 definition of an emergency plan in case of occurrence of a
specific hazardous event
 elimination (one-time activity to avoid the hazard)
 definition of a task plan for a one-time activity which cannot
be implemented in the short-term and needs planning
 maintenance (reduction of the probability of occurrence of a
hazard through service and maintenance)
 control measures (reduction of risk through control activities
at specific points in the system)
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Outcomes / Way forward
 WSP tool designed for small water utilities,
practical applicability has been proved
 information is assessed and collected in a structured and
standardized way, helpful statistics can be derived
 measures to minimize or eliminate risks can be documented
 dissemination of the tool among water cooperatives
and small water utilities
 at the moment a stand alone application, plans for the
development of a web based version
Water Safety Conference
November 2-4 2010, Kuching, Malaysia
Definition of activities and control measures
Category
5.1
Specification
Danger of flooding from parts of the extraction
area at the eastern part of the protection area
from well 1 (W1) at the discharge unit
Activity
Intended activity
Execution
Service and maintenance plan
Checklist
Responsibility
Maintenance
Service and maintenance of the discharge unit:
1) Inspection: Backflow-trap free from deposit and
floating refuse; trap broken; easy to open/close
2) Service: Purification of the disharge unit; oiling of
the trap and open/close the trap two times
a) once a month
b) after a heavy rain event
incorporated
existing
Technician Mr. Hofer
Documentation of activities and control measures
Category
Activity
Incorporated in service and maintenance plan
Verification and documentation on-site
5.1
Danger of flooding from parts of the extraction area
at the eastern part of the protection area from well 1
(W1) at the discharge unit
Maintenance
yes
yes
Done
Location of worksheet
2010.28.08; technician Mr. Hofer
records Q1, ring binder 21 - august 2010
Specification
worksheet or record
Logging function of the tool
Sheet
Erfolgsdokumentation
Erfolgsdokumentation
Erfolgsdokumentation
Erfolgsdokumentation
Cell
B15
D15
B15
C14
Erfolgsdokumentation
Erfolgsdokumentation
Erfolgsdokumentation
Erfolgsdokumentation
B11
B14
B14
C14
Erfolgsdokumentation B12
Erfolgsdokumentation B12
backfile
Location of work-sheet
Arbeitsblatt bzw. Protokoll
Standort des Arbeitsblattes
27.08.2010 durch Wassermeister
incorporated in service and
maintenance plan
done
erledigt am
27.08.2010 durch Wassermeister
Überprüfung mittels Betriebs- und
Wartungsblätter
Überprüfung mittels Betriebs- und
Wartungsblätter
new entry
Location of work sheet
work sheet or record
Location of work-sheet
2010.28.08; technician Mr. Hofer
Incorporated in service and
maintenance plan
Done
done
27.08.2010 durch Wassermeister
Verification and documentation onsite
User
BOKU-SIG
BOKU-SIG
BOKU-SIG
BOKU-SIG
Date & Time
27.08.2010 14:05
27.08.2010 14:05
27.08.2010 14:04
27.08.2010 14:04
Jahr
2010
2010
2010
2010
BOKU-SIG
BOKU-SIG
BOKU-SIG
BOKU-SIG
27.08.2010 14:03
27.08.2010 14:03
27.08.2010 14:02
27.08.2010 14:02
2010
2010
2010
2010
BOKU-SIG
27.08.2010 14:02 2010
Verification with
BOKU-SIG
27.08.2010 14:01 2010
Graphs with the development of system input volume,
consumption and water losses