The Study on Integrated Water Resources Management for Poverty Alleviation and Economic Development in the Pampanga River Basin in the Republic of the Philippines
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NATIONAL WATER RESOURCES BOARD THE REPUBLIC OF THE PHILIPPINES THE STUDY ON INTEGRATED WATER RESOURCES MANAGEMENT FOR POVERTY ALLEVIATION AND ECONOMIC DEVELOPMENT IN THE PAMPANGA RIVER BASIN IN THE REPUBLIC OF THE PHILIPPINES FINAL REPORT VOLUME II: MAIN REPORT JANUARY 2011 JAPAN INTERNATIONAL COOPERATION AGENCY CTI ENGINEERING INTERNATIONAL CO., LTD. in association with NIPPON KOEI CO., LTD. Composition of Final Report Volume I: Summary Volume II: Main Report Volume III: Supporting Reports Sector A: Topography and Meteo-Hydrology Sector B: Socio-Economy Sector C: Agricultural and Fishery Water Management Sector D: Municipal Water Supply, Sanitation and Sewerage System Management Sector E: Flood and Sediment Disaster Management Sector F: Water-related Environmental Management Sector G: Watershed Management Sector H: Water Resources Development and Management Volume IV: Supporting Reports Sector I: Socio-Environmental Consideration Sector J: Guideline for Formulation of IWRM Plan Sector K: Formulation of IWRM Plan Sector L: Plans for Legal and Institutional Framework Sector M: Water-related Data Management Appendix: Minutes and Discussion Records on SC, TWG and Stakeholder Meetings Exchange Rate used in the Report is: PHP 1.00 = US$ 0.0217 = JP¥ 1.934 US$ 1.00 = PhP 46.15 = JP¥ 89.25 (as of 31st December 2009) Pages Location Map Table of Contents Table of Contents .................................................................................................................................... i List of Tables in Report ........................................................................................................................ iv List of Annex Tables ............................................................................................................................ vii List of Figures in Report ...................................................................................................................... ix List of Annex Figures ........................................................................................................................... ix List of Appendix ................................................................................................................................... xi Abbreviations and Acronyms ............................................................................................................. xii Measurement Units ......................................................................................................................... xviii Chapter 1. Introduction .............................................................................................................. 1-1 1.1 Objectives of the Study .......................................................................................... 1-1 1.2 Extent of the Study Area ........................................................................................ 1-1 1.3 Study Schedule ...................................................................................................... 1-2 1.4 Justification of the Project Proposed in the Study ................................................. 1-2 1.5 Counterpart Agency ............................................................................................... 1-3 1.6 Steering Committee ............................................................................................... 1-4 1.7 Technical Working Group ...................................................................................... 1-4 1.8 Composition of the Final Report ........................................................................... 1-5 Chapter 2. Present Natural Conditions of the Study Area ...................................................... 2-1 2.1 Topographic Conditions ........................................................................................ 2-1 2.2 Rivers ..................................................................................................................... 2-2 2.3 Meteorology .......................................................................................................... 2-3 2.4 Hydrology .............................................................................................................. 2-4 2.5 Geology ................................................................................................................. 2-7 2.6 Hydrogeology ........................................................................................................ 2-7 2.7 Water Quality ......................................................................................................... 2-7 2.8 Ecologically Sensitive Area ................................................................................. 2-11 2.9 Wildlife (Fauna) ................................................................................................... 2-12 2.10 Water-Related Disasters in the Study Area .......................................................... 2-13 2.11 Land Subsidence .................................................................................................. 2-15 i Chapter 3. Present Socio-Economic Conditions of the Study Area ........................................ 3-1 3.1 Demographic Characteristics ................................................................................. 3-1 3.2 Economic Characteristics ...................................................................................... 3-2 3.3 Land Cover ............................................................................................................ 3-8 3.4 Water Use .............................................................................................................. 3-9 3.5 Water-Related Diseases ....................................................................................... 3-14 3.6 Indigenous People ............................................................................................... 3-16 3.7 Historical and Religious Sites .............................................................................. 3-17 Chapter 4. Present Practices for Water-Related Development and Conservation in the Study Area .......................................................................................................................... 4-1 4.1 Water Resource Development Facilities ................................................................ 4-1 4.2 Agriculture/Irrigation and Fishery Development .................................................. 4-3 4.3 Municipal Water Supply, Sanitation and Sewerage ............................................... 4-6 4.4 Hydropower Generation ...................................................................................... 4-10 4.5 Mitigation for Flood and Sediment Disasters ...................................................... 4-11 4.6 Watershed Management....................................................................................... 4-13 4.7 Water-Related Environment Management ........................................................... 4-16 Chapter 5. Present Institutional-Setup for IWRM .................................................................. 5-1 5.1 Present Legal Framework ...................................................................................... 5-1 5.2 Present Institutional-Setup ..................................................................................... 5-5 5.3 Present Framework of Water Resources Management .......................................... 5-9 Chapter 6. Problems and Issues on IWRM in Pampanga River Basin .................................. 6-1 6.1 General .................................................................................................................. 6-1 6.2 Agriculture/Irrigation and Fishery Development .................................................. 6-1 6.3 Municipal Water Supply, Sanitation and Sewerage ............................................... 6-2 6.4 Mitigation for Flood and Sediment Disasters ........................................................ 6-3 6.5 Watershed Management......................................................................................... 6-5 6.6 Water-Related Environment Management ............................................................. 6-7 6.7 Water Resources Development, Allocation and Distribution .............................. 6-10 6.8 Institution and Organization ................................................................................ 6-14 Chapter 7. Guideline for Formulation of IWRM Plan ............................................................ 7-1 7.1 General .................................................................................................................. 7-1 7.2 Planning Procedures .............................................................................................. 7-2 7.3 Setting of Planning Framework ............................................................................. 7-4 7.4 Selection of Eligible Projects for IWRM of Pampanga River Basin ..................... 7-4 7.5 Preliminary Study on Alternative Approaches to Specific Issues .......................... 7-5 ii 7.6 Grouping of Projects .............................................................................................. 7-5 7.7 Development Scenarios for Projects in Group-A and their Implementation Schedule ................................................................................................................ 7-6 7.8 Evaluation and Prioritization of Inter-Sector