Indonesia Country Water Assessment
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Indonesia Country Water Assessment The Country Water Assessment (CWA) evaluates the balance between reliable and available water supplies and future demands for sustainable economic development in Indonesia. Articulated around the water, food, and energy nexus, the CWA explores technical, institutional, and policy options to improve planning, management, and development of water resources. The 2015–2019 midterm government development policy guides the priorities covered under the CWA. This assessment intends to provide a platform for dialogue to advance water reforms across Indonesia, focusing on Java, Sumatera, and Sulawesi—the country’s three main economic regions. About the Asian Development Bank ADB’s vision is an Asia and Pacific region free of poverty. Its mission is to help its developing member countries reduce poverty and improve the quality of life of their people. Despite the region’s many successes, it remains home to the majority of the world’s poor. ADB is committed to reducing poverty through inclusive economic growth, environmentally sustainable growth, and regional integration. Based in Manila, ADB is owned by 67 members, including 48 from the region. Its main instruments for helping its developing member countries are policy dialogue, loans, equity investments, guarantees, grants, and technical assistance. INDONESIA COUNTRY WATER ASSESSMENT ISBN 978-92-9257-360-7 ASIAN DEVELOPMENT BANK 6 ADB Avenue, Mandaluyong City 1550 Metro Manila, Philippines ASIAN DEVELOPMENT BANK www.adb.org INDONESIA COUNTRY WATER ASSESSMENT ASIAN DEVELOPMENT BANK Creative Commons Attribution 3.0 IGO license (CC BY 3.0 IGO) © 2016 Asian Development Bank 6 ADB Avenue, Mandaluyong City, 1550 Metro Manila, Philippines Tel +63 2 632 4444; Fax +63 2 636 2444 www.adb.org; openaccess.adb.org Some rights reserved. Published in 2016. Printed in the Philippines. ISBN 978-92-9257-360-7 (Print), 978-92-9257-361-4 (e-ISBN) Publication Stock No. RPT167988 Cataloging-In-Publication Data Asian Development Bank. Indonesia: Country water assessment. Mandaluyong City, Philippines: Asian Development Bank, 2016. 1. Water security. 2. Water resources management. 3. Indonesia. I. Asian Development Bank. The views expressed in this publication are those of the authors and do not necessarily reflect the views and policies of the Asian Development Bank (ADB) or its Board of Governors or the governments they represent. ADB does not guarantee the accuracy of the data included in this publication and accepts no responsibility for any consequence of their use. The mention of specific companies or products of manufacturers does not imply that they are endorsed or recommended by ADB in preference to others of a similar nature that are not mentioned. By making any designation of or reference to a particular territory or geographic area, or by using the term “country” in this document, ADB does not intend to make any judgments as to the legal or other status of any territory or area. This work is available under the Creative Commons Attribution 3.0 IGO license (CC BY 3.0 IGO) https://creativecommons.org/licenses/by/3.0/igo/. By using the content of this publication, you agree to be bound by the terms of said license as well as the Terms of Use of the ADB Open Access Repository at openaccess.adb.org/termsofuse This CC license does not apply to non-ADB copyright materials in this publication. If the material is attributed to another source, please contact the copyright owner or publisher of that source for permission to reproduce it. ADB cannot be held liable for any claims that arise as a result of your use of the material. Attribution—In acknowledging ADB as the source, please be sure to include all of the following information: Author. Year of publication. Title of the material. © Asian Development Bank [and/or Publisher]. https://openaccess.adb.org. Available under a CC BY 3.0 IGO license. Translations—Any translations you create should carry the following disclaimer: Originally published by the Asian Development Bank in English under the title [title] © [Year of publication] Asian Development Bank. All rights reserved. The quality of this translation and its coherence with the original text is the sole responsibility of the [translator]. The English original of this work is the only official version. Adaptations—Any adaptations you create should carry the following disclaimer: This is an adaptation of an original Work © Asian Development Bank [Year]. The views expressed here are those of the authors and do not necessarily reflect the views and policies of ADB or its Board of Governors or the governments they represent. ADB does not endorse this work or guarantee the accuracy of the data included in this publication and accepts no responsibility for any consequence of their use. Please contact [email protected] or [email protected] if you have questions or comments with respect to content, or if you wish to obtain copyright permission for your intended use that does not fall within these terms, or for permission to use the ADB logo. Note: In this publication, “$” refers to US dollars. Printed on recycled paper CONTENTS Boxes, Figures, and Tables v Abbreviations viii Acknowledgments ix I. INTRODUCTION 1 II. NATIONAL SETTING 3 A. Geography 3 B. Population 4 C. Economic Development 6 D. Sociopolitical Setting 9 III. WATER RESOURCES 11 A. Overview: Current Water Resources 11 B. Data on Water Resources 11 C. Rainfall 11 D. River Systems 12 E. Groundwater 19 F. Ecology and Water Quality 20 G. Water Hazards 24 IV. WATER USES AND DEMAND 35 A. Water Footprint and Virtual Water 35 B. Water for Agriculture 36 C. Water for Industry 43 D. Water for Energy 46 E. Municipal Water Supply 52 F. Sanitation 53 G. Water for Navigation 54 V. MANAGING WATER 56 A. Units of Government 56 B. Policies and Strategies 58 C. Legal and Regulatory Framework 58 iii iv CONTENTS D. Community and Private Sector Participation 61 E. Knowledge and Awareness 61 VI. FUTURE SCENARIOS 64 A. Trends and Drivers 64 B. Population Growth and Domestic, Municipal, and Industrial Water Demand 65 C. Electrical Power Water Demand Development 68 D. Agricultural Water Demand Development 70 VII. INDONESIA WATER DEVELOPMENT OUTLOOK 72 A. Household and Urban Water Security 73 B. Economic Water Security 81 C. Environmental Water Security 86 D. Resilience to Water-Related Disasters 92 E. Water Governance 95 F. Private Sector Participation 97 G. Prioritization Within and Between Sectors 98 BOXES, FIGURES, AND TABLES BOXES 3.1 Summary of Water Resources 34 4.1 Overview of Demands and Uses 55 5.1 Summary of Main Water Governance Issues 62 6.1 Overview of Future Scenario 71 7.1 Water Security Vision 72 7.2 Outlook Summary 102 FIGURes 1.1 MP3EI Economic Regions Map 2 2.1 Land Use Map of Indonesia 4 2.2 Population Density Map of Indonesia, 2013 5 2.3 Indonesia’s Gross Domestic Product and Gross Domestic Product per Capita 6 2.4 Indonesia Poverty Map, 2010 9 3.1 Annual Rainfall Patterns in the Three Regions 12 3.2 Average Annual Rainfall for Indonesia’s Main Islands and Yearly Rainfall Distribution in Java 13 3.3 Surface Water Availability in Indonesia 13 3.4 Yearly Flow Variation in Citarum and Solo Rivers 14 3.5 Main Reservoirs in Java 14 3.6 Main Reservoirs in Sumatera, and Yearly Flow Variation in Asahan and Tulangbawang Rivers 15 3.7 Main Reservoirs in Sulawesi and Yearly Flow Variation in Lariang-Palu River Basin and Saddang 16 3.8 Yearly Flow Variation in Kapuas and Mamberamo Rivers 17 3.9 Reservoir Storage Volume Development and Per Capita Storage 18 3.10 Planned Reservoirs to be Constructed, 2014–2019 19 3.11 Groundwater Availability and Safe Yield of Groundwater by Region, Map of Groundwater Aquifer Productivity in Indonesia 20 3.12 River Water Quality by Province, 2012 22 3.13 Java River Water Quality Status 23 3.14 Flood Vulnerability Hotspots 25 v vi BOXES, FIGURES, AND TABLES 3.15 Flood-Prone Areas on Sulawesi 26 3.16 Flood-Prone Areas on Sumatera 27 3.17 Erosion Risk Map for Indonesia 29 3.18 Sedimentation Rates for Several Reservoirs 29 3.19 Drought Hazard Map in Indonesia 30 3.20 Variation of El Nino-Southern Oscillation Index, 1950–2014 31 4.1 Virtual Water Use of Indonesian Islands and Food Crops Import and Export, 2011 36 4.2 Regional Rice Production in Indonesia 37 4.3 Seasonal Rice Crop Calendar 39 4.4 Irrigation Water Demand per River Basin 39 4.5 Total Population of Livestock in Java, 2011 41 4.6 Estimated Livestock Population (×1000) and Water Demand in Java, 2020 42 4.7 Different Types of Cooling Towers (using Natural and Mechanical Induced Draft) 49 4.8 Percentage of Households Having Access to Clean Water in Each Province 53 4.9 Percentage of Households with Access to Improved Sanitation 54 6.1 Predicted Available Water per Capita in the River Basins of Sumatera and Java, 2035 66 6.2 Predicted Urban and Rural Domestic Water Demand 67 7.1 Present and Future Coverage of Perusahaan Daerah Air Minum (without Expansion) 74 7.2 Investment Needed in Drinking Water Supply to Fill the Present and 2035 Gap per Province 76 7.3 Investment Needed in Operation and Maintenance in Provinces with the Present Nonrevenue Water Level Higher than 45% 77 7.4 Investment Needed in Urban and Rural Sanitation to Fill the Present and 2035 Gap per Province 79 7.5 Areas with Shortage in Dry Season for 2030 (Java) and 2035 Taking Planned Reservoirs into Account 82 7.6 Estimate of Potential Additional Harvested Area with Improved Infrastructure 84 7.7 Minimum Investments Needed in Irrigation Based on Potential Increase of