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1 WATER RESOURCES MANAGEMENT SERVICES WEST JAVA PROVINCE Indonesia WATER RESOURCES MANAGEMENT FOR SUSTAINING WATER USE PURPOSES IN West Java province Presented.

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Presentation on theme: "1 WATER RESOURCES MANAGEMENT SERVICES WEST JAVA PROVINCE Indonesia WATER RESOURCES MANAGEMENT FOR SUSTAINING WATER USE PURPOSES IN West Java province Presented."— Presentation transcript:

1 1 WATER RESOURCES MANAGEMENT SERVICES WEST JAVA PROVINCE Indonesia WATER RESOURCES MANAGEMENT FOR SUSTAINING WATER USE PURPOSES IN West Java province Presented in Workshop Urban Management, ITB Bandung, 3 March 2011 By : Dr. Ir. Suardi Natasaputra

2 Topics General Information of West Java Province Problems and related with climate change Development Strategies Conclusion and Recommendation for Research 2

3 WEST JAVA PROVINCE Area : 37,060.4 km 2 Adm regions: 17 regencies, and 9 municipalities Population (2007): ± 41.5 million peoples

4 Land Use 4

5 River Basin Water Resources Development and Management based on the River Basin

6 6 Potential of Surface Water Available and Catchment Area in 6 River Basins River Basin Area (Km 2 ) Water Potential (million m 3 /year) ProvinceRegencyTotal Cisadane- Ciliwung 3,675.45, , Cisadea- Cibareno 6,693.64, , , Citarum11, , , , Cimanuk- Cisanggarung 7,157.57, , Citanduy2,682.02, , , Ciwulan-Cilaki5,415.04, , , SUM37, , , ,023.77

7 Water Resources System And Infrastructures 7 WRS & Infrastructures UnitTotal RiverNumbers3,277 LakeNumbers619 Large DamNumbers3 Medium & Small DamsNumbers25 Coastal lengthKm Irrigation SchemesNumber6,951

8 Irrigation Area In West Java Province 8Number Under Authority No of Schemes Area(Ha) 1 Central Goverment 20405,864 2 West Jawa Province 8787,034 3 Local Government (Regencies & Municipalities) 39897,339 4 Village Irrigation 6,449382,691 5 Rainfed Area 113,980 SUM6,

9 9 Irrigation Area in West Java 9 Irrigation area Rural irrigation (small schemes) Large schemes

10 10 Infrastructure Distribution Demand • Agriculture • Domestic • Municipal • Industry Groundwater pump Irrigation & marshland Supply Lake Head Works River Catchment Area sea Irrigation Land Municipal Low land 10

11 11 Water Availability and Water Used Comparisons (MCM)/year NoNo River Basin Water Availability Water Used (million) m 3 /year Total Water Used Surplus Irrigation DMI (SIPPA ) 1Ciliwung-Cisadane 5.538, ,32 202, , ,37 2Cisadea-Cimandiri , ,20 473, , ,53 3Citarum , , , ,65 4 Cimanuk- Cisanggarung 7.878, ,67 42, , ,97 5Citanduy-Ciwulan , ,26 46, , ,48 Jumlah , , , ,

12 Problems and Related with Climate Change Existing Problems Flood & drought, due to: Hydrology Environmental Degradation of the basins, Higher rainfall intensity Longer rainfall period Lead to increase runoff, less infiltration rate. Groundwater degradation: Uncontrolled water discharge Less infiltration rate Reduce groundwater level, lead to reduce base flow Impact of Climate Change (source: Ludwig. F, and Marcus Moench) On flood & drought: Higher variability of rainfall, Extreme rainfall occur more often, Less rainfall and increase evaporation, reduced stream flow. Very little research on the impacts of climate change on groundwater,  uncertain impact. Variability of rainfall will affect recharge rates. 12

13 Problems and Related with Climate Change Existing Problems Water quality degradation: Waste water pollutant from domestic & industries Garbage High sediment content Lead to high cost of WTP Coastal erosion (abrasion): Environmental degradation  destroying mangrove tree High ocean wave Lack of treatment structures Impact of Climate Change (source: Ludwig. F, and Marcus Moench) Water quality and health : Higher temperature of surface water will increase algal blooms, microbial activity and bacterial population. Lack of proper sanitation,  warmer climate will increase the risks of water-borne diseases. Global warming will cause significant melting of glaciers, which will increase sea levels. 13

14 14 FLOOD POTENTIAL AREAS IN WEST JAVA Kab.Bekasi Ha Kab.Karawang Ha Kab.Subang Ha Kab.Indramayu Ha Kab.Bandung Ha Kota Tasikmalaya 10 Ha Kab.Tasikmalaya 70,50 Ha

15 Future problem : Jiwa 2005: Jiwa 2009: Jiwa* 2010: Jiwa 2015: Jiwa 2020: Jiwa 2025: Jiwa *Data Jawa Barat Dalam Angka 2009, BPS Land-use change due to urbanization  needs more water supply Source: Brinkman J.J, Deltares 2011

16 16 Climate Change - Trend analysis annual rainfall in Bandung basin, Period Source: Brinkman J.J, Deltares 2011

17 17 Climate Change - Trend analysis average seasonal discharge in Nanjung Citarum basin, Period Impact of climate change ?

18 18 Climate Change - Trend analysis average seasonal dischage in Tomo Cimanuk basin, Period Impact of climate change ?

19 19 Climate Change - Trend analysis average seasonal discharge in Tegal Datar Cimandiri basin, Period Impact of climate change ?

20 Water Resources Management 20 VISION: Optimal services, equitable and sustainable.  Irrigation service development, in order to support the national food production.  Raw water capacity development for domestic, municipal and industries, in order to support the health of community and regional economic development.  Water conservation and flood management, in order to increase the environmental quality and productive territory development.  Information system development, in order to increase the empowerment and community participation in the water resources management. Grand Strategies:

21 21 Improvement of Irrigation Management Performance Improve efficiency: At the farm level: improve cropping pattern, crop type, water allocation procedure, and System of Rice Intensification (SRI). At the networks level  reduce losses by: Rehabilitation, canal lining, flow control system. At the basin level,  concept of reuse water. Deliver water to the farmers on right quantity and right time  improve service agreement, and water allocation system. Ease operation and reduced cost of O&M 21

22 Measure Strategies of the Raw Water Capacity Development 22  Rehabilitation of the existing small lake (total identified is about 620)  Construction of Jatigede Reservoir (On going project)  The development of small reservoirs in the upstream of the river basin.  The development of field reservoir or canal storage in the downstream of the river basin.

23 23 Water Conservation and Flood Control Management 23  Watershed Management,  to increase base flow and to reduce peak flood and erosion rate.  Land-use Regulation, to ensure that communities are not allowed to develop on flood plain  Flood control structure  Mitigation, to reduce the effect of flood disaster on communities:  warning system,  Strengthening buildings to be more resistant against flood  Changing crop cycle and cropping patent  Economic diversification  Food storage progr ams

24 24 WS Citanduy WS Ciwulan- Cilaki WS Cisadea- Cibareno WS Cimanuk- Cisanggarung WS Cidanau-Ciujung- Cidurian-Cisadane- Ciliwung-Citarum RESERVOIRS (DAMS) LOCATION PLAN CIWIDEY Dam 1. Volume : 1,18 Juta M3 2. Inundation area : 10,16 Ha. 3. Water Use : DMI for Kab/ Kota Bandung,-Cimahi, Irrigation, and Flood Retention 4. Status : DED Cost of Const. : Rp. 72 Billion SADAWARNA Dam 1. Volume : 13,5 Juta M3 2. Inundation area : 230 Ha. 3. Water Use : DMI for Kab. Subang Flood Retention and Irrigation, 4. Status : Sertifikasi (2009) 5. Cost of Const. Rp. 225 Billion PROPOSED OF KERTAJATI INTERNATIONAL AIRPORT LOCATION CIPANAS SAAT Dam CIMETA Dam 1. Volume : M3 2. Inundation area : 10,80 Ha. 3. Water Use : DMI for Kab Bandung,, Flood Retention, and Irrigation 4. Status : DED Cost of Const. : Rp. 147,5 Billion 1. Volume : M3 2. Inundation area : 31 Ha. 3. Water Use : DMI for Kab. Bandung, Flood Retention and Irrigation, 4. Status : DED Cost of Const. : Rp. 25,5 Billion CIKAPUNDUNG Dam CITEPUS Dam 1. Volume : M3 2. Inundation area : 6,74 Ha. 3. Water Use : DMI for Pelabuhan Ratu Sub District, Flood Retention and Irrigation 4. Status : Sertifikasi (2009) 5. Cost of Const. : Rp. 60 Billion 1. Volume : M3 2. Inundation area : 13,82 ha. 3. Water Use : DMI for Kec..Pangandaran,,Flood Retention and Irrigation, 4. Status : DED (2007) 5. Cost of Const. : Rp. 113,5 Billion. 1. Volume : M3 2. Inundation area : 16,08 Ha. 3. Water Use : DMI for Bandung / Cimahi, Flood Retention and Irrigation, 4. Status : DED (2004) 5. Cost of Const. : Rp. 113,5 Billion SUKAWANA Dam SUKAHURIP Dam 1. Volume : 1,4 Juta M3 2. Inundation area : 48,24 Ha. 3. Water Use : DMI for Kertajati Aerocity., Flood Retention and Irrigation. 4. Status : DED (2007) 5. Cost of Const. : Rp. 50 Billion. 1. Volume : M3 2. Inundation area : 11,19 Ha. 3. Water Use : DMI for Kab./Kota Bandung, Flood Retention and Irrigation, 4. Status : DED (2004) 5. Cost of Const. : Rp. 61,71 Billion CITARIK Dam SENTOSA Dam 1. Volume : M3 2. Inundation area : 42,5 ha. 3. Water Use : DMI for Kab./Kota Bandung,Flood Retention and Irrigation, 4. Status : DED (2007), Re-DED 2009 by BBWS 5. Cost of Const. : Rp. 750 Billion.

25 25 THE WATER SOURCES POTENTIAL SCHEME FOR BANDUNG AREA EASTERN OF BANDUNG WESTERN OF BANDUNG S. Ciwidey S. Cisangkuy S. Citarik S. Cikapundung S. Cimahi S. Cimeta River Plan of Dam Existing Dam DMI service’s area Interbasin S. Cibatarua Interbasin Water Transfer Q = 0,8 m 3 /det Plan of Ciwidey Dam Volume= m 3 Inundation= 7,53 Ha Status= DED 2005 Const. Cost= Rp ,- Plan of Ciwidey Dam Volume= m 3 Inundation= 7,53 Ha Status= DED 2005 Const. Cost= Rp ,- BANDUNG CITY SOUTHERN OF BANDUNG Plan of Cimeta Dam Volume= m 3 Inundation = 10,80 Ha Status= DED 2006 Const. Cost= Rp ,- Plan of Cimeta Dam Volume= m 3 Inundation = 10,80 Ha Status= DED 2006 Const. Cost= Rp ,- Plan of Sukawana Dam Volume= m 3 Inundation= 40,70 Ha Status= DED 2004 Const. Cost= Rp ,- Plan of Sukawana Dam Volume= m 3 Inundation= 40,70 Ha Status= DED 2004 Const. Cost= Rp ,- Plan of Cibatarua Dam Volume= 1 Juta m 3 Inundation= 7 Ha Status = DED 2005 (APBN) Const. Cost = Rp ,000,- (included Santosa Dam) Plan of Cibatarua Dam Volume= 1 Juta m 3 Inundation= 7 Ha Status = DED 2005 (APBN) Const. Cost = Rp ,000,- (included Santosa Dam) S. Cilaki Rencana 5 Wdk Kecil ► Plan of Cikapundung Dam Volume= m 3 Inundation= 15,29 Ha Status= DED 2004 Const. Cost= Rp ,- ► Wdk Ciawiruka Status= Identifikasi ► Cipanengah 1, 2 dan 3. Status= Identifikasi Rencana 5 Wdk Kecil ► Plan of Cikapundung Dam Volume= m 3 Inundation= 15,29 Ha Status= DED 2004 Const. Cost= Rp ,- ► Wdk Ciawiruka Status= Identifikasi ► Cipanengah 1, 2 dan 3. Status= Identifikasi S. Citarum Plan of Citarik Dam Volume= m 3 Inundation= 37,63 Ha Status= DED 2004 Const. Cost= Rp ,- Plan of Citarik Dam Volume= m 3 Inundation= 37,63 Ha Status= DED 2004 Const. Cost= Rp ,- Plan of Santosa Dam Volume= m 3 Inundation= 42,5 Ha Status= DED 2007/Re DED 2009 Plan of Santosa Dam Volume= m 3 Inundation= 42,5 Ha Status= DED 2007/Re DED 2009 SAMUDRA INDONESIA S. Saguling S. Cirata S. Juanda Skema Potensi SDA di Wil Cekungan Bandung-3

26 THE WATER SOURCES POTENTIAL SCHEME FOR WESTJAVA INTERNASIONAL AIRPORT TERITORY ( LOCATION AT KERTAJATI SUB DISTRICT OF MAJALENGKA DISTRICT) S. Cipanas paeh S. Cilebakjero S. Cibarengkok S. Cimanuk S. Cikujang S. Cibalida S. Cideres S. Cikasarung S. Cimurutud S. Cilutung S. Cipeles S. Cigaruguy Bd. Cariang = 600 Ha PROPOSED OF WESTJAVA INTERNATIONAL AIRPORT Rencana Trase Air Baku S. Cicacaban S. Ciandana S. Cipelang Laut Jawa S. Cipanassaat S. Cipanas • • • • Bd. Rentang = Ha Sal. Rambatan L = 5,25 km Cipanas Dam Volume = 120 Juta m3 Genangan = 795 Ha Status = DD 2006 Biaya Pemb.= Rp. 115 Milyar Cipanas Dam Volume = 120 Juta m3 Genangan = 795 Ha Status = DD 2006 Biaya Pemb.= Rp. 115 Milyar Rencana Wdk Cipelang Volume = 4,79 Juta m3 Genangan = 189 Ha Status = Identifikasi 2005 Biaya Pemb.= pm Rencana Wdk Cipelang Volume = 4,79 Juta m3 Genangan = 189 Ha Status = Identifikasi 2005 Biaya Pemb.= pm Plan of Cipanassaat Dam Volume = 1,59 Juta m3 Inundation= 53,37 Ha Status = DED 2007 Const. Cost = Rp. 64,8 Billion Plan of Cipanassaat Dam Volume = 1,59 Juta m3 Inundation= 53,37 Ha Status = DED 2007 Const. Cost = Rp. 64,8 Billion Plan of Jatigede Dam Volume = 979,5 Juta m3 Inundated area = Ha Status = Constructed in 2007 Const. Cost= Rp Billion Plan of Jatigede Dam Volume = 979,5 Juta m3 Inundated area = Ha Status = Constructed in 2007 Const. Cost= Rp Billion S. Cipelang Situ Citamiang Luas = 14,3 Ha ; Luas baku = 31 Ha Areal diairi = 31 Ha ; Vol = m3. Rehab & penataan = Rp. 2,5 Milyar Rawa Cimaneuh Luas = 27,9 Ha; Areal diairi = 20 Ha; Vol = m3 Rehab & penataan = Rp. 3 Milyar Rawa Jawura Luas = 55 Ha ; Luas baku = 58 Ha Areal diairi = 38 Ha ; Vol = m3 Rehab & Penataan = Rp. 4 Milyar

27 Conclusion The existing problems mostly because of environmental degradation, compare with the climate change. Watershed management is the priority of the conservation activities. Increasing efficiency and water storage are good strategies for water resources development program. The impacts of climate change on water in West Java, still uncertainly,  needs more research 27

28 Recommendations Subject of research: Climate change impacts on environmental and natural ecosystems Climate change impacts on water quality and health Groundwater potential and recharge Automatic flow control structures to increase efficiency of irrigation system Optimal cropping patent and optimal water use for irrigation, based on the predictable seasonal river discharge as the impact of climate change. Conservation measures to increase infiltration rate by artificial recharge 28

29 Thank You 29

30 Juanda Dam Located in Citarum River Salient Features : Cathment Area: Km 2 Average Discharge: 175 m 3 /det Surface Area: 83 Km 2 Storage Capacity: 3,6 x 10 9 m 3 Effektive Storage: 2,5 x 10 9 m 3 Type of Dam: Rockfill Dam High of Dam: 105 m Length of Dam: m DAM PURPOSES Power Capacity: 215 MW Service Irrigation Area: Ha Water Supply: 20 m 3 /det Tourism

31 Cirata Dam Located in Citarum River Salient Features : Cathment Area: Km 2 Surface Area: 62 Km 2 Storage Capacity: x 10 9 m 3 Effektive Storage: 7.96 x 10 6 m 3 Type of Dam: Rockfill Dam High of Dam: 125 m Length of Dam: m DAM PURPOSES Power Capacity: 500 MW Tourism

32 Saguling Dam Located in Citarum River 32 Salient Features : Surface Area: 56 Km 2 Storage Capacity: 9,82 x 10 6 m 3 Effektive Storage: 6,9 x 10 6 m 3 Type of Dam: Rockfill Dam High of Dam: 97,5 m Length of Dam: 301,5 m DAM PURPOSES Power Capacity: 700 MW Tourism


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