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Potential Impacts of Climate Change within Urban Water Management

Potential Impacts of Climate Change within Urban Water Management. BPLHD, 3 Maret 2011. An overview of West Java. Metropolitan Bandung. Sympton of CC. Potential impacts. International Cooperation. Conclussions. OUTLINE OF PRESENTATION. An Overview of West Java Province.

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Potential Impacts of Climate Change within Urban Water Management

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  1. Potential Impacts of Climate Change within Urban Water Management BPLHD, 3 Maret 2011

  2. An overview of West Java Metropolitan Bandung Sympton of CC Potential impacts International Cooperation Conclussions OUTLINE OF PRESENTATION

  3. An Overview of West Java Province

  4. West Java at a glance • 26 administratively urban area • 41 sub watersheds • Population: 43.03millions people • Water and food supplier for national • Sharing border with other provinces

  5. Long and Midterm Planning Development Increasing public awareness • Increasing protected area (45%) • Water quality: unpolluted river • Increasing protected area • Water Quality (highly to moderate polluted) Targets of Environmental Sector

  6. WATER QUALITY(HIGHLY TO MODERATED POLLUTED) TARGET Of RPJMD EXISTING CONDITION www.cybermq.com/beritaphoto/deta...industri http://img.dailymail.co.uk/i/pix/2007/06_01/plasticrubbish2R_468x317.jpg http://img.dailymail.co.uk/i/pix/2007/06_01/plasticrubbish2R_468x317.jpg

  7. Institutional Governance Regulators • Government departments (MOE, MOME, MOPW) - Both policy- making and regulatory functions • Provincial & Municipal Governments (WJEMA, WJME, WJHS, ETC) - Main regulators: devolved powers Service Undertakers • Municipalities • Water supply and sewerage services • Autonomous politically • State Water Companies • Raw Water Cooperation (PJT 2) - Bulk water developer and wholesaler to municipalities, and individual water users (industry) • PDAM Bandung and Kab. Bandung • - Water supply provider

  8. Legal Framework designated beneficial water uses for Citarum Norm, standard, guidance, procedure Master plan of Citarum Water quality Sewerage River, lake etc Groundwater Forestry Drinking water development Local Government Land use plan Water Quality Management Environmental Natural resources Water Resources Governing authority

  9. A Case of Metropolitan Bandung

  10. A Briefly Facts of Metropolitan Bandung Note: Unscale 5 DISTRICTS N 7 SUBWATERSHEDS 7 MILLIONSPOPULATION NATIONAL ECONOMIC GROWTH CENTRE OF EDUCATION, INDUSTRY AND SERVICES Map: Bappenas & Wangsaatmaja, modified, 2010

  11. Urbanization Development (50% People Live In Urban) URBAN AREA JAKARTA CITARUM WS (2000) JAKARTA CITARUM WS (2025) Source: Land-use change – Urbanization (ADB-Package B)2000 – 2025 in JanJaap Brinckman, Deltares 2010

  12. Challenges of Water Supply Management Percentage of served population (2010) Lack of piped water services in Metropolitan Bandung

  13. Lack of waste water services in Metropolitan Bandung • Bandung: 58 % of te covered area and the percentage of wastewater treated only reaches 24,10 – 50,20 percent in the over 5 last years (PDAM Bandung) • Bandung regency: 4 small treament plants covers some sub district • Cimahi and sumedang: No centralized WWTP

  14. Groundwater Problem Photo: Wangsaatmaja, 2004 Groundwater Level (1950) Groundwater Level (2006) OVER EXPLOITATED BY INDUSTRY Source: IWACO in ARMI SUSANDI, 2010

  15. Flood Historical floodin upstream area • It has been occuring since 1931 • Various magnitude and frequency of flood • The most severe flood: 1931, 1986, 1998 and 2010 (more flood frequently & flood retention) SUMBER: TRIJONO PBPP CITARUM 2005/ IDA NARULITA LIPI 2006/ SOBIRIN DPKLTS 2006/YADI SURYADI-HAHI 2008

  16. Climate Change

  17. Sympton of Climate change??? COMPARISSION RAINFALL IN UPPER CITARUM (ST CEMARA) 2006-2010 Source: BMKG, analyzed by BPLHD 2010 Rainfall Trend in January – February – March 2010 increase 1,5 to 2 times w/ last 2 years

  18. Sympton of Climate change??? Source: PSDA and BMKG, analyzed by BPLHD Rainfall Pattern of Upper Citarum and Trend of Declining Rainfall Pattern (1999-2009)

  19. Potential Impacts

  20. Waste water management Physical structures Rainfall pattern and variability Other sectors Health Agriculture: Cropping pattern Water resources: surface and groundwater Potential Impacts of Climate Change

  21. Potential impacts to physical structures • 3 cascade reservoir could not strorage water flowing form the upper area (last year) • This year up to feb, the elevation of water is lower than normal water level • Needed an adjusment of SOP of 3 cascade reservoirs

  22. Potential impacts to agricultures • Change of cropping pattern • Reduce some great amount of yields due to crop failure • Food security www.suaramerdeka.com www.bandung.detik.com

  23. Potential impacts to water resources • High level of variability in annual run off caused a great influence of water resource. • Dry season, insufficient water to dillute pollutant • During wet season, status of river quality still does not meet a designated beneficial water use • More stress on groundwater use due to high variability of surface water and domestic use

  24. Potential impacts to wastewater treatment • Variability of wastewater entering the system • Decreasing river quality due to less water for dillution

  25. International Cooperation Conclussions • High level of variability in rainfall and runoff pattern caused some impacts to water infrastructures, agriculture, industry, water quality • Needed some policy adaptation

  26. Proposed Research • Research on adaptive mechanism against climate change (adjusment physical structures, drainage, flooding area, waste water, water supply management) • Research on adaptive agriculture practices against climate change • Research on community adaptive (resilience) • Research policy adaptation (incentive-disincentive mechanism, e.g. water recycle in industry) • Research on centralized wastewater treatment

  27. Research on Sustainable Water Management Policy Project in ASIA, Collaboration research IGES-JAPAN, University of Tianjin (CHINA), AIT (THAILAND) Research Partner on Community Based Landfill Monitoring in Leuwigajah, collaboration with ITB, TU-Braunschweig (Germany) and Boku University (Austria) Research Partner in Indonesia for CIDA-AIT SEA-UEMA - EPCM with Jetro, AOTS & JEMAI, Japan Internship program and expert exchange Research on Water Quality Management Policy, Collaboration research GIST Korea - UNU Japan. International Cooperations

  28. Conclusions • Climate change will influence urban water and waste water management. • Need some adaptive policy to tackle some impacts of climate change. • Need collaboration research among research institute – university – government.

  29. THANK YOU BPLHD JAWA BARAT Jl. Naripan No. 25 Bandung 40111 www.bplhdjabar.go.id

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