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Urban Water Supply and Sustainability

Urban Water Supply and Sustainability. Francisco Cubillo. Head of Applied Technologies Department. Madrid, SPAIN. Water Time ERL Cordoba, Spain October 2003. A VISION FOR IWA.

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Urban Water Supply and Sustainability

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  1. Urban Water Supply and Sustainability Francisco Cubillo Head of Applied Technologies Department Madrid, SPAIN Water Time ERL Cordoba, Spain October 2003

  2. AVISIONFORIWA “IWA – Connecting water professionalsworldwideto lead the development of EFFECTIVE and SUSTAINABLE approaches to urban water management”

  3. Yearly Volume HYDROLOGIC LIMIT ? SUSTAINABLE ABSTRACTION CONSUME ENVIRONMENTAL EFFICIENCY SUSTAINABILITY SOCIAL EFFICIENCY STANDARDS OF SERVICE TIME ECONOMIC EFFICIENCY COST & RISK

  4. Demand Variable Resources Infrastructures Scarcity Management Service Standards Cut Offs Shortages SUPPLY CAPACITY Drought Scenario Reliability Operation Criteria Environmental Guarantee Ecological Limit

  5. COMPONENTS OF AN EFFICIENT WATER MANAGEMENT Supply system management Demand Risk management Resources operation

  6. END USES DEMAND MANAGEMENT Demand

  7. YEARLY UNIT USE IN HOUSEHOLDS IN BLOCKS Demand

  8. SUPPLY SYSTEM MANAGEMENT Supply System Management TARGET BASED ON LOSSES VOLUMES FORFUTURE HORIZONS SHORT TERM COST EFFECTIVENESS CONTROL

  9. REAL LOSSES EVOLUTION Supply System Management Real Losses Unmetered volumes

  10. RESOURCES OPERATION Resources Operation NORMAL RESOURCES Noregulated Regulated COMPLEMENTARY RESOURCES USES TRANSFER DEMAND SHORTAGES REUSE STRATEGIC RESERVES EXCLUSIVE CONDITIONEDSHARED

  11. RESOURCES OPERATION Resources Operation RESOURCES USES CRITERIA

  12. RISK MANAGEMENT Long Term Short Term Cost Probability Guarantee Risks Damages- Shortages Efficiency Risk Operational cost Risk Management Supply Reliability

  13. AVAILABILITY & DEMAND BALANCE PLANNING Demand Supply capacity

  14. CONCLUSIONS Efficiency is the best component of sustainability. There is no significant trust in efficiency & sustainability within water supply scope. We should talk more about limits than about sustainability. Efficiency is a comprehensive approach to get reliable balance between resources-demands. Efficiency becomes important in water crisis. Temporal efficiency shouldn’t be confused with permanent There is a natural tendency to permanent efficiency. The MAIN SOLUTIONS are appropriate planning.. ..but planning for crisis not planning from crisis. ..clear establishment of environmental limits. ..protocols that integrate operation&planning under principles for efficiency

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