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Water Safety Plans & Catchment Management

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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 3

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4 INSPIRING CHANGE FOCUS IS ON WATER SUPPLIER Regulators Regional or local Government National Government Health Local builders, plumbers & water fittings suppliers Water supplier National associations dealing with builders, plumbers, retailers & manufacturers Catchment managers National/regional water associations CONSUMERS Catchment Users Raw water catchment Community & consumer groups

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OVERVIEW OF WATER SAFETY PLANS 5 Assemble team (Module 1) Develop supporting programmes (Module 9) Plan & carry out periodic WSP review (Module 10) Verify the effectiveness of the WSP (Module 7) Develop, implement & maintain an improvement plan (Module 5) Determine & validate control measures, reassess & prioritize risks (Module 4) Identify the hazards & assess the risks (Module 3) Revise WSP following incident (Module 11) Describe the water supply system (Module 2) Define monitoring of control measures (Module 6) incident Feedback Management & communication Monitoring System assessment Prepare management procedures (Module 8) Preparation

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6 INSPIRING CHANGE 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 INSPIRING CHANGE EMPHASIS ON TREATMENT FOR WATER QUALITY CatchmentTreatmentDistributionConsumers Cost Barriers / Control Measures Water utilities range of control

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8 INSPIRING CHANGE 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)

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9 INSPIRING CHANGE LINKING CATCHMENT MANAGEMENT AND WSP Identify key catchment stakeholders Map and characterise catchments Identify hazards and hazardous activities Assess risks which could compromise treated water quality Implement risk based raw water monitoring Develop catchment warning and response procedures Promote catchment risk mitigate measures Verify effectiveness of catchment controls Assess need for improved treatment to reduce risk Balance between need for enhanced treatment and likely effectiveness of catchment controls Develop catchment partnerships Flood and drought information is needed

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10 INSPIRING CHANGE CATCHMENT PARTNERSHIPS Water Associations Water Supplier Catchment users Catchment managers Policy and Legislation Local implementation Catchment Level National / regional level

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Development of tools to incorporate impacts of climatic variability and change, in particular floods and drought, into basin planning processes

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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.

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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

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14 INSPIRING CHANGE 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

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15 INSPIRING CHANGE OVERALL PROJECT DESIGN

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16 INSPIRING CHANGE 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. Based on an assessment of present approaches, and developed through consultation with stakeholders Combination of learning and pilot transboundary basin

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17 INSPIRING CHANGE 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 INSPIRING CHANGE BasinGEFTransboundary institution LocationNos. of countries in basin Flood and drought impacts Major urban area Existing water safety plans Volta2006 - date Volta Basin Authority West Africa 6Serious irregular flooding and drought Ouagadoug ou Under developme nt Chao Praya Not earlier NoneSouth East Asia 1Extremely serious BangkokUnder developme nt Lake Victoria 1997 - date Lake Victoria Basin Commission East Africa 5SeriousKampala, Mwanza and Kisumu Yes

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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.

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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)

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21 INSPIRING CHANGE 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)?