The Preparatory Survey on Application of Wastewater Reclaiming in Southern Bali Water Supply System in the Republic of Indonesia
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NATIONAL DEVELOPMENT PLANNING AGENCY (BAPPENAS) MINISTRY OF PUBLIC WORKS (PU) BALI PROVINCIAL GOVERNMENT THE PREPARATORY SURVEY ON APPLICATION OF WASTEWATER RECLAIMING IN SOUTHERN BALI WATER SUPPLY SYSTEM IN THE REPUBLIC OF INDONESIA FINAL REPORT VOLUME II MAIN REPORT JUNE 2012 JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) TOYOTA TSUSHO CORPORATION NIHON SUIDO CONSULTANTS CO., LTD. OPS METAWATER CO., LTD CR (5) 12-029 Currency Exchange Rate (Effective as of August 2011) 1 IDR = 0.00909 JPY THE PREPARATORY SURVEY ON APPLICATION OF WASTEWATER RECLAIMING IN SOUTHERN BALI WATER SUPPLY SYSTEM IN THE REPUBLIC OF INDONESIA REPORT CONTENTS Volume I Summary Volume II Main Report Volume III Supporting Report (Appendix) TABLE OF CONTENTS Table of Contents List of Figures List of Tables Abbreviation CHAPTER 1 INTRODUCTION 1.1 Background..................................................................................................................................... 1-1 1.2 Objectives of the Survey................................................................................................................. 1-2 1.3 Survey Area..................................................................................................................................... 1-2 1.4 Survey Outline and Schedule.......................................................................................................... 1-3 1.5 Survey Organization and JICA Team Member ............................................................................... 1-5 CHAPTER 2 PRESENT CONDITIONS IN SOUTHERN BALI 2.1 Natural Conditions.......................................................................................................................... 2-1 2.1.1 Location ................................................................................................................................... 2-1 2.1.2 Topography .............................................................................................................................. 2-1 2.1.3 Climate..................................................................................................................................... 2-2 2.2 Socio-economic Conditions............................................................................................................ 2-2 2.2.1 Population in Bali Province ..................................................................................................... 2-2 2.2.2 Socio-economic Conditions..................................................................................................... 2-3 2.2.3 Tourism .................................................................................................................................... 2-3 2.3 Policy, Goal and Strategy of Water Supply..................................................................................... 2-4 2.3.1 National Plan............................................................................................................................ 2-4 2.3.2 Provincial Plan......................................................................................................................... 2-5 2.4 Water Administrations of Central Governments and Bali Provincial Governments....................... 2-5 2.4.1 Central Government................................................................................................................. 2-6 2.4.2 Bali Provincial Governments................................................................................................... 2-8 2.4.3 The Organization for PPP ........................................................................................................ 2-9 2.5 Water Supply in the Southern Bali.................................................................................................. 2-10 2.5.1 Water Supply in Denpasar City................................................................................................ 2-10 2.5.2 Water Supply System in Badung Regency............................................................................... 2-14 2.6 Water Supply Plans in Bali Prepared by Previous Studies.............................................................. 2-18 2.6.1 Review of Previous Studies ..................................................................................................... 2-18 2.6.2 Situation and Trend of Water Supply Projects in Southern Bali .............................................. 2-25 2.7 Reclaimed Water Utilization Plan in Southern Bali and Its Positioning......................................... 2-27 2.7.1 Pre-feasibility Report prepared by Bali Provincial Government on Suwung WWTP Effluent Utilization as Raw Water for Reclaimed Water Supply (October, 2008).................. 2-27 2.7.2 Pre-feasibility Study Report by Cipta Karya of PU on Waste Water Re-use from Suwung WWTP, Denpasar, Bali (2009)................................................................................................ 2-28 2.7.3 Comments on the Contents of Above-mentioned Study Report .............................................. 2-31 i CHAPTER3 LEGAL FRAMEWORK OF PPP INFRASTRUCTURE INVESTMENT IN WATER SECTOR IN INDONESIA 3.1 Laws & Regulations on Implementation of the Development of Water Supply............................. 3-1 3.1.1 Law on Water Resources.......................................................................................................... 3-1 3.1.2 Regulation on Development of Drinking Water Supply System ............................................. 3-2 3.1.3 Regulation on Implementation of the Development of Water Supply ..................................... 3-3 3.1.4 Study in Legal Aspect about Supply of Reclaimed Wastewater through PDAM .................... 3-4 3.1.5 Laws & Regulations on Water Supply Development and Financial Recovery of PDAMs ..... 3-5 3.2 Legislative System of PPP Infrastructure Investment in Indonesia ................................................ 3-12 3.2.1 Legal Framework for PPP Infrastructure Investment .............................................................. 3-12 3.2.2 License & Cooperation Agreement under PPP Legal Framework........................................... 3-13 3.2.3 Law & Regulations Related to Implementation of PPP Projects ............................................. 3-20 CHAPTER 4 UNDERSTANDING THE RECLAIMED WATER DEMAND IN SOUTHERN BALI AND WORLDWIDE EXAMPLES OF RECLAIMED WATER USE 4.1 Estimating Reclaimed Water Demand ............................................................................................ 4-1 4.2 Demand Survey on Reclaimed Water Use ...................................................................................... 4-1 4.2.1 Survey Target and Survey Method...........................................................................................4-1 4.2.2 Results of the Survey ............................................................................................................... 4-3 4.2.3 Future Developments in the BTDC Reclaimed Water Supply Business and PDAM Badung’s Irrigation Water Facility.......................................................................................... 4-7 4.2.4 Cultural Acceptance of Reclaimed Water ................................................................................ 4-7 4.2.5 Summary of the Demand Survey Results ................................................................................ 4-8 4.3 Potential Demand for Reclaimed Water.......................................................................................... 4-9 4.3.1 Estimation Method................................................................................................................... 4-9 4.3.2 Setting Target Demand Level for Reclaimed Water................................................................. 4-9 4.3.3 Unit Water Consumption in Hotels.......................................................................................... 4-10 4.3.4 Two Cases for Reclaimed Water Use ..................................................................................... 4-11 4.3.5 Actual Water Consumption in Hotels by Types of Use............................................................ 4-12 4.3.6 Estimation of the Reclaimed Water Demand ........................................................................... 4-13 4.4 Current Water Reuse Demand and Case Studies World-wide......................................................... 4-14 4.4.1 Global Water Reuse Demand Forecast..................................................................................... 4-14 4.4.2 World-wide Applications ......................................................................................................... 4-14 CHAPTER 5 EVALUATION OF THE RECLAIMED WATER TREATMENT PROCESS 5.1 Evaluation Policy and Method........................................................................................................ 5-1 5.2 Raw Water (Secondary Effluent) .................................................................................................... 5-1 5.2.1 Treatment Capacity .................................................................................................................. 5-1 5.2.2 Treated Water Quality at Denpasar Wastewater Treatment Plant (IPAL Suwung) .................. 5-1 5.3 Target Quality for Reclaimed Water ............................................................................................... 5-3 5.3.1 Case Studies Worldwide..........................................................................................................