SUstainable WAter Management (SUWAM) for resilience to climate change impact on society in South Africa

Transcription

1 SUstainable WAter Management (SUWAM) for resilience to climate change impact on society in South Africa Concluding Conference of the South Africa Norway Programme of Research Cooperation (SANCOOP) Pretoria, December 2017 Herman Helness Willem P. de Clercq

2 SUWAM key facts Project participants SINTEF Stellenbosch University Hessequa Municipality Collaboration based on MOUs SINTEF and Stellenbosch University Stellenbosch University and Hessequa Municipality Research team Stellenbosch University: Nico Elema and Willem de Clercq (PI) SINTEF: Sigrid Damman, Rita Ugarelli and Herman Helness (PI) First contact through 3rd party looking for collaborators for SANCOOP application

3 Hessequa Municipality

4 Climate change framework Water resources Data (climate, soils, land use) Modelling Dept Water Affairs CSIR modelled results Own SWAT and dam modelling Municipal water requirement Results Water severely affected by CC Affected by land use change Need of a second dam Interests generated Water Affairs, Cape Town,

5 Climate change impact Dam Volume modelled

6 SUWAM sustainability framework Assess options in a sustainability perspective Climate change time frame Strategic level Aligned with Hessequa Key Performance Areas (KPAs). Related to methodology from EU project TRUST, also in eg. Blue Cities, DESSIN and RWH4Gana Dimensions: Social Environmental Economic Governance Assets Objectives: 8 objectives linked to KPA in IDP. Criteria: 29 criteria to measure compliance with the objectives. Users participate in defining objectives and criteria, and weights for the criteria. Local data should be used as much as possible. Methodology generally applicable, but can be developed further: Suit of Assessment Tools, each giving a valuable assessments on it's own, and also criteria for an integrated sustainability assessment (SAF). Sustainability Assessment Framework for options in Integrated Water Management - Case Riversdale in Hessequa municipality Dimention KPA # Alignment with Hessequa ID Criteria for sustainability assessment ID Proposed indicators Comments to indicators Municipality's focus areas of options in IWM S11 Actors involved in water resource management EFFECTIVE COMMUNICATION Increased participation in water S12 Forums and arenas for discourse on water resource 1 S1 AND PARTICIPATION. management management S13 Awareness/knowledge of water preservation S21 Level of service: Fraction of system with design levels Need spatial resolution, per area, per settlement, per for indigene; low; high; industry capita DEVELOPMENT OF SAFE AND Equitable access to reliable water S22 Water consumption Also need allocation to ecosystem, farming and city. Social (S) 4 INTEGRATED HUMAN S2 supply and acceptable sanitation SETTLEMENTS. S23 User complaints S31 Compliance with quality standards Inverted, calculate as percentage of non-compliance HUMAN DEVELOPMENT Water management solutions that INITIATIVES TO ENHANCE THE S32 Awareness 5 S3 enhance good health, knowledgebuilding and social integration SOCIAL WELL-BEING OF ALL OUR RESIDENTS. S33 Training/knowlede building En11 Water abstraction/water resource Overall hydraulic reliability En12 Indicator on ESS?, Biodiversity Can be a relative value compared to 1A Preserve water resources and water En1 related ecosystem services En13 Water resources provisioning of plants and animal Can be a relative value compared to 1A TO LIMIT THE IMPACT OF OUR foodstuffs PRESENCE IN THE NATURAL En14 Non renewable resource use of WCS Should indicate degree of water recirculation. Inverted, Environment (En) 2 ENVIRONMENT AND caclulated as the fraction of users without recycling. REESTABLISH A HERITAGE OF En21 Energy consumption per household Data exist at the municipality but must be processed. PRESERVATION. Use SWC as fist estimate. Better with per hhld. than m3, Minimisation of other environmental En22 CO2 footprint Based on energy, but should differ from En21 En2 impacts En23 Flow downstream Riversdale for different needs Specific needs must be defined. Can be total yearly flow and be given as relative to 1A as initial estimate. Ec11 Ec11 Hydraulic reliability for irrigation channel Hydraulic reliability for the farmers (demand/supply) Ec12 Savings at household level Costs relative to 1A as an initial estimate Stimulate economic growth and TO STIMULATE ECONOMIC entrepreneurship through better access Ec13 Employment Economic (Ec) 6 GROWTH FOR THE BENEFIT OF Ec1 to water resources and improved water ALL COMMUNITIES. cycle services Ec14 Extent of land and/or number of farms that can be Hectars that can be irrigated based on specific value for irrigated weath and other grains Ec15 Water beyond basic needs Can be a relative value compared to 1A. Will be equal to En12 G11 Compliance with Blue drop; Green drop; No drop AN ACCOUNTABLE LOCAL AUTHORITY WITH A FIT FOR Deliver services in alignment with G12 Income, metering, billing, linked to WCS Governance (G) 7 PURPOSE WORKFORCE AND G1 prevailing standards for good TRANSPARENT FINANCIAL governance in water management G13 Impact in terms of roles and networks, distribution of PRACTICES. resources in the implicated institutions, transparancy A11 Hydraulic reliability for Riversdale WS (demand/supply), Can this be made for different users and classes: currently 1.4 Mm3/( ) Mm3. Domestic use; Industry; Agricultural? A12 Coverage of water supply, currently 100% Inverted, calculated as 100-coverage-% MAINTENANCE AND Maintain adequate infrastructure for A13 Coverage of sanitation Inverted, calculated as 100-coverage-% DEVELOPMENT OF ALL water supply and sanitation, with Assets (A) 3 INFRASTRUCTURE AND A1 optimal impact on other infrastructure A14 Total cost per m3, data exist but must be processed. Cost items (infrastructure, operational, maintenance, SERVICES and services labour) per m3 are also interesting. A15 Percent water loss, data exist but must be processed A16 Impact on other infrastructure (street network, storm water network )

7 SUWAM framework comparing alternatives Actors involved Communicative events Hydraulic reliability, water Reduced potential for flooding Water loss Total operating costs cost per 8,73 O&M, WS&S infrastructure Infrastructure for WS&S Impact on governance 8,50 Fraction of billed water 9,20 8,00 Compliance with 'drops' 7,00 5,50 4,62 3,81 3,79 2, ,54 9,02 6,67 3,22 3,47 LoS - water supply. 9,02 LoS - sanitation. 0,00 0,00 5,00 7,31 0,00 5,06 5,00 Share of increased availability Compliance with quality Acceptability of the strategic Awareness of climate change Overall hydraulic reliability Biodiversity Water for plants and animal feed Water beyond basic needs 7,44 Extent of irrigation Pot. Inc. employment in agri. Total cost for WS&S per hhl 7,71 7,07 7,00 7,63 7,66 Non renewable resource use Energy consumption per hhl CO2 footprint, potable water use Flow downstream Riversdale Hydraulic reliability, irrigation Current situation Social Environmental Economic Governance Assets 2&3A 2&3G

8 Follow up and impacts of SUWAM We will be developing this SAF further for use in Norway and EU, but are also interested in further application in South Africa. Established collaboration with Hessequa. Smart management of rural and urban water and wastewater systems, water and wastewater treatment. (Blue- and Green drop) Real value analyses of water, social impact analyses, socio-economic valuation, infrastructure planning. Ecosystem services and SDGs. Included in 3 international applications, and several national applications/projects. SANCOOP has been important for achieving this. Impact on capacity building for researchers. We supported 4 students directly and 2 indirectly. The site was used by the SSSSA and Stellenbosch Soil- and Conservation Ecology departments. We had 2 groups of 20 students over 2 years visiting the site for practicals. Relevant for implementation of sustainability policy in the water sector. Results published at conference and journal: Meeting with WRC and CSIR hosted by Innovation Norway Co-Published: European Journal of Sustainable Development (2017), 6, 4, more publications submitted Report towards the Hessequa municipality

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11 Thank you! Sustainable water management for resilience to climate change impact on society in South Africa