1. Water Safety Plans &
Catchment Management

2. INSPIRING CHANGE
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3. WHAT IS A WSP?
 A way to ensure safe drinking-water by:
 Knowing the system thoroughly
 Identifying where and how problems could arise
 Multibarrier approach - Putting barriers and management systems in
place to stop the problems before they happen
 Making sure all parts of the system work properly
 A comprehensive risk assessment and risk management
approach that encompasses all steps in water supply from
catchment to consumer
 Fits within a framework for safe drinking-water
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INSPIRING CHANGE
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4. FOCUS IS ON WATER SUPPLIER
National Government
Regulators
Health
Catchment
managers
Community &
consumer groups
Water supplier
Raw water
catchment
Catchment
Users
National/regional water associations
National associations dealing with builders,
plumbers, retailers & manufacturers
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Regional or local
Government
CONSUMERS
Local builders,
plumbers & water
fittings suppliers
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5. OVERVIEW OF WATER SAFETY PLANS
incident
Revise WSP
following incident
(Module 11)
Assemble team
(Module 1)
Identify the hazards &
assess the risks
(Module 3)
Plan & carry out
periodic WSP
review (Module 10)
Preparation
System assessment
Develop supporting
programmes
(Module 9)
Describe the water supply
system (Module 2)
Monitoring
Management &
communication
Feedback
Prepare
management
procedures
(Module 8)
Verify the
effectiveness of the
WSP (Module 7)
Determine & validate
control measures,
reassess & prioritize risks
(Module 4)
Develop, implement &
maintain an improvement
plan (Module 5)
Define monitoring
of control measures
(Module 6)
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6. WSPS AND CATCHMENT MANAGEMENT
 Part of WSP process is identifying hazards and assessing
risk
 Identify all hazardous events that could contaminate, compromise
or interrupt supply
 Identify all potential hazards in supply chain (from source to tap)
 Evaluate the risks associated with each hazard/hazardous event
 Examples
Heavy rainfall (hazardous event) may promote the introduction of
microbial pathogens (hazards) into the source water
Flooding can result in damaged infrastructure
Drought can compromise water supply and water quality
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7. EMPHASIS ON TREATMENT FOR WATER
QUALITY
Water utilities range of
control
Cost
Barriers /
Control
Measures
Catchment
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Treatment
Distribution
Consumers
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8. BETTER CATCHMENT MANAGEMENT
 Catchment management improves water supply
downstream (quantity and quality)
 Increase source water quality – OR – ensure source water quality
does not deteriorate
 Decrease intensity of treatment processes – reduce costs
(chemicals, energ)
 Decrease the necessity to seek new water resources (time and
money)
 Decrease water quality variance – more predictable quality
 Understanding flood and drought hazards enables better
planning for infrastructure investment (e.g. storage and
networks), risk mitigation measures (e.g. urban storage
and drainage)
INSPIRING CHANGE
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9. LINKING CATCHMENT MANAGEMENT AND
WSP
Identify key catchment
stakeholders
Verify effectiveness of
catchment controls
Promote catchment risk
mitigate measures
Develop catchment
warning and response
procedures
Develop catchment
partnerships
Flood and drought
information is needed
Implement risk based raw
water monitoring
Map and characterise
catchments
Identify hazards and
hazardous activities
Assess risks which could
compromise treated water
quality
Balance between need for enhanced treatment and likely
effectiveness of catchment controls
Assess need for improved treatment to reduce risk
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10. CATCHMENT PARTNERSHIPS
Policy and
Legislation
Local
implementation
National / regional level
Water
Associations
Water
Associations
Water
Associations
Catchment
managers
Catchment
‘users’
Water
Supplier
Catchment Level
INSPIRING CHANGE
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11. Development of tools to incorporate
impacts of climatic variability and
change, in particular floods and
drought, into basin planning processes

12. PROJECT RATIONALE
 Climatic variability and
change is increasing in the
form of more frequent,
severe and less predictable
floods and droughts
 Growing sense of urgency
among countries, basin
organizations and other end
users such as utilities to
build resilience towards
floods and droughts
 Risks related to hydrologic
uncertainty is magnified in
transboundary contexts,
where cooperation among
countries is essential to any
coping strategy.

13. PROJECT BACKGROUND
 Initiated by the Global Environment Facility (GEF) secretariat
and UNEP to look at methodologies for addressing extreme
weather events
 Partners – IWA, DHI and UNEP
DHI – expertise on development of tools for water managemnet
IWA – engaging with key end users (especially utilities) to develop
and test methodology
 GEF needs to develop a tool to better address floods and
drought issues in its portfolio
more than 50 IWRM-related projects in 30 lake and river basins
throughout the world.
GEF projects have shown flood and droughts to be a priority
transboundary concern, along with the other multiple drivers that
cause depletion and degradation

14. Project Goal
 The project aims at contributing to the global efforts
being made to maintain acceptable levels of societal
and ecosystem sustainability vis-a-vis growing climatic
uncertainty and unpredictability.
Project Objective
 Improve the ability of land, water and urban area
managers operating in transboundary river basins to
recognize and address, as part of the TDA-SAP, IWRM
plans and water safety plans processes, the
implications of the increased frequency, magnitude and
unpredictability of flood and drought events
INSPIRING CHANGE
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15. OVERALL PROJECT
DESIGN
INSPIRING CHANGE
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16. PROJECT OUTPUTS
 Developing a generic methodology
for basins, which uses tools and
decision support systems that
integrate information on floods and
droughts to:
Transboundary Diagnostic Analyses
and Strategic Action Plans
IWRM and Water safety plans.
 Combination of
learning and pilot
transboundary basin
 Based on an assessment of present
approaches, and developed through
consultation with stakeholders
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17. BASINS
 Pilot Basins – Direct testing of generic methodology to
incorporate floods and droughts into planning
 Lake Victoria, Volta, Chao Phraya
 Learning Basins – Consultations to understand how
DSS are being applied and used in planning and what
can be improved
 Danube
Identify main water management issues and use these as a
starting point for discussion
Opportunity to take stock of how the basin is managing flood
events, what are the gaps and what can be developed in the
future
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18. Transboundary Location
institution
Nos. of
Flood and Major
Existing
countries drought
urban area water
safety
in basin impacts
plans
Basin
GEF
Volta
2006 - Volta Basin
date Authority
West
Africa
6
Serious –
irregular
flooding
and
drought
Chao
Praya
Not
None
earlier
South
East Asia
1
Extremely Bangkok
serious
Lake
Victoria
1997 - Lake Victoria
date Basin
Commission
East
Africa
5
Serious
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Ouagadoug Under
developme
ou
nt
Under
developme
nt
Kampala,
Yes
Mwanza
and Kisumu
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19. WHAT IS THE “METHODOLOGY”?
 Most advanced commercially available Decision Support
Systems (DSS) combine databases, models, GIS and web
technologies with configurable decision logics.
 Information is processed in such a way to produce various
scenarios to make informed decisions
 Project will develop open access
modules to allow the integration of
flood and drought elements and of
likely climatic scenarios into more
commonly used DSSs, and apply
them to IWRM planning, to the
TDA process, and to WSPs.

20. STAKEHOLDER ENGAGEMENT
 Emphasis is to be placed on the management of floods
and droughts affecting urban and industrial areas that
are the centers of economic growth, assets and wealth
creation.
Links with utilities and WSPs that incorporate
catchment management
WSP will complement wider basin planning and
provide in depth engagement with end users
Provides opportunity for awareness raising on river
basin management benefits at local level (urban and
industrial)

21. DISCUSSION
Risks and Hazards
 What specific risks and hazards around floods and droughts, have you
encountered which you would like to include in planning processes?
 What kind of information do you currently gather around floods and
droughts (quantitative and qualitative) in the TDA/SAP process?
Decision support systems
 What type of decision support tools (especially for floods and droughts)
are you familiar with? How are using them?
 What type of outputs do you use or are you looking for from a DSS
which focuses on floods and droughts? How would use information
from a DSS in a TDA process and planning?
Stakeholder engagement
 How do you engage with other stakeholders at local level (e.g
industries, utilities, etc)?
INSPIRING CHANGE
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