REPUBLIC OF INDIA BANGALORE WATER SUPPLY AND SEWERAGE BOARD BENGALURU WATER SUPPLY AND SEWERAGE PROJECT (PHASE 3) IN THE STATE OF KARNATAKA, INDIA FINAL REPORT (Main Report) NOVEMBER 2017 JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) NJS CONSULTANTS CO., LTD. (NJS) 4R JR(先) 17-063 1 USD = 112 Yen 1 INR = 1.74 Yen (As of June 2017) Bengaluru Water Supply and Sewerage Project (Phase 3) Final Report Table of Contents ABBREVIATIONS LOCATION MAP EXECUTIVE SUMMARY CHAPTER 1 BACKGROUND AND OUTLINE OF THE PROJECT ............................................... 1-1 1.1 INTRODUCTION ................................................................................................................................. 1-1 1.2 OBJECTIVES OF THE PROJECT AND PREPARATORY SURVEY ............................................................. 1-1 1.3 SURVEY AREA AND DESIGN YEAR .................................................................................................... 1-1 1.3.1 Outline of the Proposed Work ................................................................................................... 1-2 CHAPTER 2 GENERAL DESCRIPTION ON THE PROJECT AREA ............................................ 2-1 2.1 NATURAL CONDITIONS ..................................................................................................................... 2-1 2.1.1 Location and Topographic Conditions ...................................................................................... 2-1 2.1.2 Meteorological Conditions ........................................................................................................ 2-1 2.1.3 Hydrological and Hydrogeological Conditions ...................................................................... 2-13 2.1.4 Geological Conditions ............................................................................................................ 2-19 2.2 LEGISLATIVE CONDITIONS ............................................................................................................. 2-21 2.2.1 National/State/City Water Policy ............................................................................................ 2-21 2.2.2 Legal Framework .................................................................................................................... 2-28 2.2.3 Relevant Organizations to the Sectors .................................................................................... 2-37 2.2.4 Water Quality and Sewage Discharge Standards in India ....................................................... 2-40 2.3 SOCIO-ECONOMIC PROFILE ............................................................................................................ 2-43 2.3.1 Population, Income and Housing ............................................................................................ 2-43 2.3.2 Education ................................................................................................................................ 2-46 2.3.3 Culture and Religion ............................................................................................................... 2-47 2.3.4 Slums ...................................................................................................................................... 2-47 2.3.5 Economy in Bengaluru Urban District .................................................................................... 2-49 2.3.6 Social Services ........................................................................................................................ 2-49 2.3.7 Administrative Divisions ........................................................................................................ 2-54 2.4 EXISTING AND FUTURE LAND USE ................................................................................................. 2-55 2.4.1 Existing Land Use ................................................................................................................... 2-55 2.4.2 Future Land Use ...................................................................................................................... 2-56 NJS Consultants Co., Ltd i Bengaluru Water Supply and Sewerage Project (Phase 3) Final Report CHAPTER 3 EXISTING WATER SUPPLY AND ON-GOING/PLANNED WATER SUPPLY PROJECTS ..................................................................................................................... 3-1 3.1 EXISTING AND ON-GOING WATER SUPPLY ....................................................................................... 3-1 3.1.1 General Conditions on Water Supply in Bruhat Bengaluru Mahanagara Palike ....................... 3-1 3.1.2 Population Coverage and Access to Water Services ................................................................. 3-3 3.2 EXISTING WATER SUPPLY FACILITIES ............................................................................................... 3-5 3.2.1 Intake and Conveyance Facilities ............................................................................................. 3-5 3.2.2 Water Treatment Plant ............................................................................................................... 3-8 3.2.3 Water Transmission Facilities ................................................................................................. 3-15 3.2.4 Water Distribution Facilities ................................................................................................... 3-20 3.3 ON-GOING WATER SUPPLY PROJECT .............................................................................................. 3-37 3.3.1 Water Supply and Sewerage Master Plan ............................................................................... 3-37 3.3.2 New 300 MLD WTP Project (In Lieu of Existing Stage I and II WTPs) ............................... 3-39 3.3.3 On-going UFW Project ........................................................................................................... 3-40 3.4 EXISTING SCADA SYSTEM ............................................................................................................ 3-47 3.4.1 General .................................................................................................................................... 3-47 3.4.2 Water Treatment and Distribution Network Monitoring ......................................................... 3-48 3.4.3 Centralized SCADA Center at Shimsha Bhavan .................................................................... 3-51 3.4.4 Sewerage SCADA System ...................................................................................................... 3-56 CHAPTER 4 EXISTING SEWERAGE FACILITIES AND ON-GOING/ PLANNED SEWERAGE PROJECTS ..................................................................................................................... 4-1 4.1 PRESENT SEWERAGE SERVICES ........................................................................................................ 4-1 4.1.1 Sewerage Services by District ................................................................................................... 4-1 4.2 SEWER SYSTEM ................................................................................................................................ 4-5 4.2.1 Core Area .................................................................................................................................. 4-5 4.2.2 ULB Area .................................................................................................................................. 4-6 4.3 INTERMEDIATE SEWAGE PUMP STATIONS (ISPS) ............................................................................. 4-6 4.3.1 Summary of Existing ISPSs ...................................................................................................... 4-6 4.3.2 Present Situation of Agaram 65 MLD ISPSs ............................................................................ 4-7 4.4 SEWAGE TREATMENT FACILITIES (INCLUDING ON-SITE SEWAGE TREATMENT FACILITIES) .............. 4-8 4.4.1 Overview of Existing STPs in Core and ULB Area .................................................................. 4-8 4.5 REUSE OF TREATED SEWAGE FROM BWSSB STPS ........................................................................ 4-10 4.5.1 Utilization ratio of Existing STPs in Core and ULB Areas .................................................... 4-11 4.5.2 Effluent Quality of Existing STPs in Core and ULB Areas .................................................... 4-12 4.5.3 New Effluent Standards .......................................................................................................... 4-14 4.5.4 Present Situation of Existing STPs in Core and ULB Areas ................................................... 4-14 4.5.5 Present Situation in 110 Villages ............................................................................................ 4-19 4.5.6 Tertiary Treated Sewage Utilization ........................................................................................ 4-19 NJS Consultants Co., Ltd ii Bengaluru Water Supply and Sewerage Project (Phase 3) Final Report 4.6 TARIFF FOR WATER SUPPLY AND SEWERAGE SERVICES, AND COST RECOVERY ............................ 4-21 4.6.1 Present Practice for Water and Sewerage Tariff ...................................................................... 4-21 4.7 ON-GOING SEWERAGE PROJECT ..................................................................................................... 4-21 4.7.1 Water