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Department of Water Affairs

Department of Water Affairs Water Requirements and Availability Reconciliation Strategy for Mbombela Municipal Area Water Conservation and Water Demand Management Component 30 April 2013. Objectives.

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Department of Water Affairs

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  1. Department of Water Affairs Water Requirements and Availability Reconciliation Strategy for Mbombela Municipal Area Water Conservation and Water Demand Management Component 30 April 2013

  2. Objectives • To make more effective and efficient use of the existing and available water resources by all water use sectors in the study area; • To develop realistic water saving targets for the respective water use sectors and quantify the impact on current and future water requirements in the study area; • To enable the Catchment Management Agency (CMA) and the Department of Water Affairs (DWA) to “free-up” additional water, which can be put to beneficial use in the public interest;

  3. Objectives… • To conserve water and avoid or delay the implementation of further expensive schemes for transfers and storage which may not be necessary if water is used efficiently; and • To provide necessary information to support the implementation of compulsory licensing and related water allocation reforms.

  4. Billed Authorised Consumption Billed Metered Consumption Revenue Water Authorised Consumption Billed Unmetered Consumption Unbilled Metered Consumption Unbilled Authorised Consumption Unbilled Unmetered Consumption System Input Volume Non Revenue Water Unauthorised Consumption Apparent Losses Water Losses Customer Meter Inaccuracies Leakage on Transmission and Distribution Mains Leakage and Overflows at Storage Tanks Real Losses Leakage on Service Connections up to point of Customer Meter WCWDM Key Performance Indicators Free basic Water security and efficiency Efficiency and financial viability Environmentally and financially unattractive

  5. Efficiency and Non-revenue water System Input Volume = 400 ℓ/c/d Revenue Water System Input Volume = 400 ℓ/c/d Revenue Water System Input Volume = 40 ℓ/c/d Revenue Water Non-Revenue Water 80% Non-Revenue Water = 40% Non-Revenue Water = 20% Low non-revenue water but inefficient water use High non-revenue water and inefficient water use High non-revenue water but very efficient water use Augmentation not recommended Augmentation a possibility Augmentation not recommended

  6. Strategy Targets • Efficiency • Target 180 to 200 litres per capita per day • Impacts on water security and next augmentation • Non-revenue water • >50% target 40% • 30% to 50% target 25% • <30% target 15% • Impacts on revenue and water use efficiency • Water losses • Same as NRW with unbilled consumption not more than 5% of system input volume • Financially and environmentally not acceptable

  7. Mbombela Targets

  8. Target Summary

  9. Interventions TECHNICAL INTERVENTIONS Bulk metering Sectorisation Active Leakage Control Valve audits Leak and logging equipment Telemetry Retrofitting and removal of wasteful devices Mains replacement Pressure management Control valve management Consumer metering Top consumer audit GIS / CAD system Management Information System Water loss monitoring and audits INSTITUTIONAL / LEGISLATIVE INTERVENTIONS • Institutional review • Training and education • Customer charter, policy, bylaws FINANCIAL INTERVENTIONS • Effective metering and billing • Water tariffs • Informative billing SOCIAL INTERVENTIONS • Consumer Awareness Campaign • Consumer Help and Support Desk • Schools awareness

  10. Recommendations Setup task group (political, technical, finance) to meet on monthly basis to discuss WDM issues – losses, billing, leak repairs, etc. Fill vacancies, training & capacity building Focus on record keeping and management information Comply with legislation, regulations and RPMS Resolve intermittent supply Review tariff structures Fix all visible and private leaks

  11. WCWDM Regulations under WSAR509 of 2001 Reg (3) Community awareness and customer service Reg (3) and (4) – Eradicate intermittent supply Reg (10) – Water audit as part of WSDP Reg (11) – Water balance and sectorisation Reg (12) – Repair of leaks Reg (13) – Consumer metering Reg (15) – Pressure management

  12. Way forward • Improve management information • Adopt strategies and business plans • Include budgets in IDP • Implement WC/WDM programme • Report to Water Affairs on • Key performance indicators • Actions • Successes and failures • Plan  Do  Check  Act

  13. Thank you

  14. Irrigation: Overall conclusions • Irrigated agriculture in the Mbombela Municipal area is generally under serious threat due to a number of key factors including: • Reducing assurance of supply due to growing erosion of available water resources to other sectors • Reducing water quality • Rapidly escalating pumping (electricity) costs which are effectively forcing higher levels of water use efficiency. • Low morale in the agricultural sector (affecting investment and productivity).

  15. Irrigation: Overall conclusions… • Consequently the irrigation sector is unlikely to be willing to further reduce its supplies through water trading. • Cutting back on unlawful water use is one way of making more water available to legitimate users, or for further licence allocations.

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