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The State of Water Use Efficiency in South Africa
Towards Regulating Water Conservation and Water Demand Management Cain Chunda and Chabedi Tsatsi Water Use Efficiency 01 November 2006
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Presentation Outline Introduction
Extent of Water Losses and Wastages: A Local Government Focus Causes of Water Losses & Wastages: A Local Government Focus Recommended Interventions and work in progress Benefits and Success Stories of Water Conservation and Water Demand Management
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Introduction Water is a vital natural resource because it is fundamental to life. Although it is a key indispensable natural resource, water in South Africa is very scarce. Water in South Africa is being transferred over long distances on very large scales which means the performance of all water providers should be monitored and improved. The NWA, 1998 is founded on the central principles of equity, efficiency and sustainability.
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Extent of Water Losses and Wastages: NRW
Non-Revenue Water refers to the total of apparent losses, real losses and the proportion of authorised consumption, which is not billed.
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Breakdown of Rand Water Urban Demands
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Water used by main urban centres in the Vaal River System
Area Annual Demand (million m3) Johannesburg 470 Ekurhuleni 291 Tshwane 255 Emfuleni 79 Rustenberg 26 Mogale 24 Govan Mbeki 18 Matjhabeng 16 Randfontein 7 Total 1 186
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Growth in demand of main demand centres
JOHANNESBURG EKURHULENI VOLUME (mill m3 / annum) TSHWANE EMFULENI
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Water Demand Increases and Non-Revenue Water within Municipalities
System Input Volume Revenue Water Billed and paid for consumption Free basic water zero rate Billed but not paid for consumption Non Revenue Water Apparent Losses UARL Potential saving on physical leakage
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Sebokeng Evaton Water Balance
System Input Volume m3/annum Billed and paid for Consumption m3/annum 5% Free basic water m3/annum 20% Apparent losses m3/annum 4% Sebokeng Evaton Water Balance UARL (2 to 3 times) m3/annum 12% Potential saving on physical leakage and inefficient consumption m3/annum 59%
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Water Demand Increases and Non-Revenue Water within Municipalities
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Summary of Estimated NRW
Area Annual Demand (million m3) Estimated NRW (million m3/a) Johannesburg 470 154 Ekurhuleni 291 91 Tshwane 255 66 Emfuleni 79 49 Rustenberg 26 8 Mogale 24 6 Govan Mbeki 18 5 Matjhabeng 16 9 Randfontein 7 2 Total 1 186 390
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Non-Revenue Water refers to the total of apparent, real losses and the proportion of authorised consumption, which is not billed 390 million m3 of water lost through Non-Revenue Water is a massively huge amount of water FAR IN EXCESS OF THE NEXT AUGMENTATION SCHEME FROM R15billion.
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Where is this water going?
Connection Burst Leaking Valve
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Where is this water going?
Leak repairs Connection Burst
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Where is this water going?
Leaking Taps
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Where is this water going?
Running tap inside school Leaking Taps and Urinals at schools
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Where is this water going?
Reservoir Leakage Leaking Taps and Urinals
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IT’S ALSO CAUSING ACCIDENTS!!!
Photo courtesy Willem Wegelin
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Causes of the water losses and wastages
Lack of dedicated financial resources to support implementation of water conservation and demand management interventions including O and M. Lack of institutional commitment and regulatory tools to enforce implementation of WC/WDM as per the NWA, 1998 and the WC/WDM Strategies resulting in: Old dilapidated infrastructure (physical leakages), Institutional capacity (billing systems and auditing), Education and awareness (consumer behaviour to water), Political leadership at provincial and local level (technical managers complain of not getting support to implement with budgets being reduced or not availed for WC/WDM).
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Work In Progress: Institutional Interventions
Institutionalising WC/WDM through regional office structure Developing protocols & governance tools for WC/WDM: WC/WDM conditions for WUA, WC/WDM sector Guidelines, WC/WDM Training Manuals, WC/WDM Info. System, WC/WDM Regulations.
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Work In Progress: Implementation Support
WMA situation assessment studies Developing WC/WDM Strategies and implementation plans for the following WMAs in support of Water Allocation Reform: Olifants WMA (Mpumalanga and Limpopo), Inkomati WMA (Mpumalanga), Mvoti-Mzimkhulu WMA (Kwa-Zulu Natal), Uthukela WMA (Kwa-Zulu Natal), Usuthu-Mhlathuze WMA (Kwa-Zulu Natal), and Upper and Middle Vaal WMAs, Mokolo Catchment.
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Work In Progress: Implementation Support
Municipal support interventions Providing support (financial and technical) to municipalities to develop and implement water conservation and water demand management viz. Emfuleni (Gauteng), Umkhanyakude, Uthungulu and Zululand Districts (Kwa-Zulu Natal), Nelson Mandela and Buffalo City (Eastern Cape), Ramotshere Moiloa, Rustenburg (North West), City of Johannesburg, Tshwane, Ekurhuleni, Sedibeng, Dr JS Moroka, etc (Gauteng/Mpumalanga), and Matjhabeng, Moqhaka LM (Free State), Lephalale, Greater Tzaneen, Capricon, Sekhukhune DM (Limpopo).
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Scope for water conservation and Demand Management
Where can savings be made ? (addressing only the wastage and not the billed and paid for consumption) Billed and paid for consumption Retrofitting & Metering Free basic water zero rate Pressure Management Billed but not paid for consumption Mains Replacement Apparent Losses ALC UARL Other (Bylaws, sectorising, awareness) Potential saving on physical leakage
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Recommended Interventions and Work in Progress
Develop National Regulations for WC/WDM to address amongst others the: Setting of national water use efficiency standards, Setting of national, provincial and local specifications for housing developments with respect to water efficient plumbing devices, National labelling of water efficient devices, Enforcement of WC/WDM through provincial legislation & local bylaws, Setting penalties for wasteful use of water within public buildings, Provision of incentives for achieving WC/WDM targets and benchmarks. The Department is already in process of developing these regulations
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Recommended Interventions and Work in Progress
Establishment of a National Water Demand Revolving Fund to support water conservation and demand management programmes: Australia, USA, and other efficient countries have such dedicated funds in place for facilitating uptake of WC/WDM. In SA Eskom is piloting an excellent similar initiative through its Demand Side Management (DSM) Fund for energy efficiency. Discussions are ongoing with institutions such as TCTA to explore possibilities for funding WC/WDM interventions at a reasonable tariff recovery rate.
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Recommended Interventions and Work in Progress
Backlog of Maintenance before which certain WDM measures cannot be implemented Other WDM Interventions Quick fix WDM interventions: Indirect WDM measures Valve maintenance and repair, Pipe replacement; Bulk Meter replacement Domestic meter replacement; Replacement and repair of water towers etc Full sectorising Proper billing and cost recovery MIS and analysis of Minimum Night flows etc Certain Bylaws Pressure management; Leak location & Repair Manage impact of inefficient garden irrigation etc Schools awareness Public Awareness CLO’s & door to door discussions Billing and Payment for water
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Return on Investment on Water Conservation and Water Demand Management (Municipal Revenue)
Emfuleni Local Municipality we invested R8m in WDM and we are saving in excess of 9million cubic metres of water and well over R24m per annum to the municipality City of Johannesburg through Operation Q’cina Amanzi invested has invested R 600 million over a period of five years to save 60 million of water which would have cost new infrastructure scheme of over R 5 billion. In Vaal River System we can invest an estimated R3billion on WC/WDM to make available to save in excess of R15billion worth of augmentation scheme either from Lesotho or Thukela
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Return on Investment on Water Conservation and Water Demand Management (WAR)
OPPORTUNITIES AND COSTS OF POTENTIAL WATER SAVING MEASURES IN THE INKOMATI WMA Water Use Sector Capital Investment Plan Water Saving % Saving Average Incremental cost of water saved Capital Cost (Million R) Annual O&M Cost Mill. m3/a Domestic & Commercial 4.5 1.75 5.00 12 R0.14 per m3 Industrial and Mining 5.5 1.51 2.03 8 R0.58 per m3 Irrigation 150.50 25.93 205 14.8 R0.09 per m3 Total 157.5 31.19 207
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Return on Investment on Water Conservation and Water Demand Management
Create an informed public regarding WC/WDM Create the culture of WC/WDM through water use institutions Promote and enforce water wise behaviour Capacitate water utilities and institutions on WC/WDM Improve service delivery Address socio economic development of local communities through job creation
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THANK YOU
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