The Study on Water Quality Management Plan for Ganga River in the Republic of India
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No. JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) NATIONAL RIVER CONSERVATION DIRECTORATE (NRCD) MINISTRY OF ENVIRONMENT AND FORESTS THE STUDY ON WATER QUALITY MANAGEMENT PLAN FOR GANGA RIVER IN THE REPUBLIC OF INDIA FINAL REPORT VOLUME IV FEASIBILITY STUDY FOR PROJECT CITIES VOLUME IV-4 FEASIBILITY STUDY FOR VARANASI CITY PART I SEWERAGE SCHEME JULY 2005 TOKYO ENGINEERING CONSULTANTS CO., LTD. CTI ENGINEERING INTERNATIONAL CO., LTD. GE JR 05-038 JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) NATIONAL RIVER CONSERVATION DIRECTORATE (NRCD) MINISTRY OF ENVIRONMENT AND FORESTS THE STUDY ON WATER QUALITY MANAGEMENT PLAN FOR GANGA RIVER IN THE REPUBLIC OF INDIA FINAL REPORT VOLUME IV FEASIBILITY STUDY FOR PROJECT CITIES VOLUME IV-4 FEASIBILITY STUDY FOR VARANASI CITY PART I SEWERAGE SCHEME JULY 2005 TOKYO ENGINEERING CONSULTANTS CO., LTD. CTI ENGINEERING INTERNATIONAL CO., LTD. FINAL REPORT ON WATER QUALITY MANAGEMENT PLAN FOR GANGA RIVER JULY 2005 GENERAL TABLE OF CONTENTS VOLUME I SUMMARY VOLUME II RIVER POLLUTION MANAGEMENT PLAN VOLUME III MASTER PLAN FOR PROJECT CITIES VOLUME III-1 SEWERAGE MASTER PLAN FOR LUCKNOW CITY VOLUME III-2 SEWERAGE MASTER PLAN FOR KANPUR CITY VOLUME III-3 SEWERAGE MASTER PLAN FOR ALLAHABAD CITY VOLUME III-4 SEWERAGE MASTER PLAN FOR VARANASI CITY VOLUME III-5 NON-SEWERAGE SCHEME VOLUME III-6 SOCIAL CONSIDERATION AND HYGIENE EDUCATION PLAN VOLUME III-7 RECOMMENDATIONS ON SOLID WASTE MANAGEMENT VOLUME III-8 GIS DATA MANAGEMENT VOLUME III-9 INSTITUTIONAL DEVELOPMENT PROGRAMME VOLUME III-10 FINANCIAL AND ECONOMIC EVALUATION VOLUME III-11 (SUPPORTING REPORT) CASE STUDY OF SEWAGE TREATMENT PLANTS VOLUME IV FEASIBILITY STUDY FOR PROJECT CITIES VOLUME IV-1 FEASIBILITY STUDY FOR LUCKNOW CITY PART I SEWERAGE SCHEME PART II NON-SEWERAGE SCHEME PART III PUBLIC PARTICIPATION AND AWARENESS PROGRAMME PART IV INSTITUTIONAL DEVELOPMENT PROGRAMME PART V ECONOMIC AND FINANCIAL EVALUATION PART VI STAKEHOLDER MEETING PART VII DRAWINGS VOLUME IV-2 FEASIBILITY STUDY FOR KANPUR CITY PART I SEWERAGE SCHEME PART II NON-SEWERAGE SCHEME PART III PUBLIC PARTICIPATION AND AWARENESS PROGRAMME PART IV INSTITUTIONAL DEVELOPMENT PROGRAMME PART V ECONOMIC AND FINANCIAL EVALUATION PART VI STAKEHOLDER MEETING PART VII DRAWINGS VOLUME IV-3 FEASIBILITY STUDY FOR ALLAHABAD CITY PART I SEWERAGE SCHEME PART II NON-SEWERAGE SCHEME PART III PUBLIC PARTICIPATION AND AWARENESS PROGRAMME PART IV INSTITUTIONAL DEVELOPMENT PROGRAMME PART V ECONOMIC AND FINANCIAL EVALUATION PART VI STAKEHOLDER MEETING PART VII DRAWINGS VOLUME IV-4 FEASIBILITY STUDY FOR VARANASI CITY PART I SEWERAGE SCHEME PART II NON-SEWERAGE SCHEME PART III PUBLIC PARTICIPATION AND AWARENESS PROGRAMME PART IV INSTITUTIONAL DEVELOPMENT PROGRAMME PART V ECONOMIC AND FINANCIAL EVALUATION PART VI STAKEHOLDER MEETING PART VII DRAWINGS VOLUME V PILOT PROJECT FOR SANITARY IMPROVEMENT OF MANIKARNIKA GHAT VOLUME IV-4 PART I SEWERAGE SCHEME Table of Contents List of Tables List of Figures Appendix Abbreviations Glossary of Terms TABLE OF CONTENTS CHAPTER 1 INTRODUCTION ................................................................................................... 1-1 1.1 BACKGROUND .................................................................................................................. 1-1 1.2 PRIORITY SEWERAGE PROJECTS FOR FEASIBILITY STUDY ................................. 1-1 1.2.1 Selection of Sewerage Priority Projects ........................................................................ 1-1 1.2.2 Sewerage Priority Projects ............................................................................................ 1-2 1.2.3 Scope of Works for Sewerage Feasibility Study ........................................................... 1-3 CHAPTER 2 PRELIMINARY DESIGN AND COST ESTIMATION FOR SEWERAGE PRIORITY PROJECT .......................................................................................... 2-1 2.1 PLANNING BASIS.............................................................................................................. 2-1 2.1.1 Design Criteria............................................................................................................... 2-1 2.1.2 Design Basis for Sewer Network................................................................................... 2-7 2.1.3 Design Basis for Sewage Treatment Plants................................................................. 2-11 2.1.4 Design Basis of Sewage Pumping Station................................................................... 2-24 2.2 PROVISIONS FOR DISTRICT I....................................................................................... 2-34 2.2.1 Planning Scheme ......................................................................................................... 2-34 2.2.2 Inspection, Cleaning and Rehabilitation of Old Trunk Sewer..................................... 2-35 2.2.3 Rehabilitation of Ghat Pumping Stations .................................................................... 2-50 2.2.4 Renovation / Rehabilitation of Existing Konia Pumping Station................................ 2-60 2.2.5 Renovation / Rehabilitation of Existing STP at Dinapur............................................. 2-61 2.3 PROVISIONS FOR DISTRICT II AND IV....................................................................... 2-64 2.3.1 Planning Scheme ......................................................................................................... 2-64 2.3.2 Varuna River Interceptor Sewer.................................................................................. 2-64 2.3.3 Proposed Sewage Pumping Stations (Under Sathwa Catchment)............................... 2-70 i 2.3.4 Sathwa Sewage Treatment Plant ................................................................................. 2-78 2.3.5 Effluent Disposal Channel and Lining of Irrigation Canal.......................................... 2-87 2.4 PROVISIONS FOR DISTRICT III .................................................................................... 2-90 2.4.1 Planning Scheme ......................................................................................................... 2-90 2.4.2 Renovation / Rehabilitation of Existing STP at Bhagwanpur ..................................... 2-90 2.4.3 Assi Nala Interceptor Sewer........................................................................................ 2-93 CHAPTER 3 ENVIRONMENTAL IMPACT ASSESSMENT FOR SEWERAGE PRIORITY PROJECT ............................................................................................................... 3-1 3.1 INTRODUCTION ................................................................................................................ 3-1 3.1.1 Introduction ...................................................................................................................3-1 3.1.2 Justification of the Project ............................................................................................. 3-1 3.1.3 Objective of the EIA Study ........................................................................................... 3-2 3.1.4 EIA Methodology.......................................................................................................... 3-2 3.2 POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK ......................................... 3-6 3.2.1 General .......................................................................................................................... 3-6 3.2.2 Legal Framework........................................................................................................... 3-7 3.2.3 Environmental Protection Standards ............................................................................. 3-8 3.2.4 Administrative Framework.......................................................................................... 3-12 3.3 PROJECT DESCRIPTION................................................................................................. 3-15 3.3.1 General ........................................................................................................................3-15 3.3.2 Existing Sewerage Facilities in Varanasi City ............................................................ 3-16 3.3.3 Sanctioned Sewerage Facilities in Varanasi................................................................ 3-18 3.3.4 Proposed Sewerage Facilities in Varanasi City........................................................... 3-19 3.4 BASELINE ENVIRONMENTAL SCENARIO................................................................. 3-26 3.4.1 The Study Area............................................................................................................ 3-26 3.4.2 Physical Environment.................................................................................................. 3-26 3.4.3 Socio-Cultural Environment........................................................................................ 3-46 3.5 ANALYSIS OF ALTERNATIVES (INCLUDING WITHOUT PROJECT OPTION)..... 3-54 3.5.1 Project Benefits and Positive Impacts ......................................................................... 3-54 3.5.2 With and Without Proposed Project ............................................................................ 3-54 3.5.3 Alternatives.................................................................................................................. 3-55 3.6 IMPACT IDENTIFICATION AND MITIGATION MEASURES.................................... 3-57 3.6.1 Overall Impact