Environmental Impact Assessment Report
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Environmental Impact Assessment Report Environmental Impact Assessment (Chenchuri Beel and Narail Subproject) Project Number: 34418 June 2005 BAN: Southwest Area Integrated Water Resources Planning and Management Project Prepared by Halcrow Group Ltd., UK for the Asian Development Bank (ADB). The views expressed herein are those of the consultant and do not necessarily represent those of ADB’s members, Board of Directors, Management, or staff, and may be preliminary in nature. The environmental impact assessment is a document of the borrower. The views expressed herein do not necessarily represent those of ADB’s Board of Directors, Management, or staff, and may be preliminary in nature. Ministry of Water Resources Government of the People’s Republic of Bangladesh SOUTHWEST AREA INTEGRATED WATER RESOURCES PLANNING AND MANAGEMENT PROJECT Bangladesh Water Development Board Water Resources Planning Organisation ADB TA No. 4079 - BAN Environmental Impact Assessment (Chenchuri Beel and Narail Subproject) June 2005 Halcrow Group Ltd, UK in association with DHI Water & Environment, Denmark Engineering & Planning Consultants Ltd, Bangladesh Kranti Associates Ltd, Bangladesh Halcrow Bangladesh Ltd, Bangladesh Southwest Area Integrated Water Resource Planning and Management Project TA 4079-BAN Table of Contents Acronyms and Abbreviations vi 1 Introduction..............................................................................................................1 1.1 Background......................................................................................................1 1.1.1 Chenchuri Beel.........................................................................................1 1.1.2 Narail........................................................................................................2 1.2 Methodology and Approach of EIA ................................................................3 1.3 EIA Activities and Undertaking.......................................................................3 2 Description of the Project ........................................................................................5 2.1 Project Rationale..............................................................................................5 2.2 Objectives and Scope.......................................................................................6 2.3 Chenchuri Beel Subproject ..............................................................................8 2.3.1 Existing Infrastructure .............................................................................9 2.3.2 Proposed Measures Chenchuri Beel Subproject....................................10 2.4 Narail FCD/I Subproject................................................................................11 2.4.1 Existing Infrastructure ...........................................................................12 2.4.2 Proposed Measures in Narail Subproject...............................................13 2.5 Rural Arsenic Mitigation and Sanitation Program for Chenchuri Beel and Narail Subproject Areas.............................................................................................13 3 Description of the Environment.............................................................................15 3.1 Physical Environment ....................................................................................15 3.1.1 Atmosphere/ Climate.............................................................................15 3.1.2 Topography............................................................................................16 3.1.3 Geology and Soils..................................................................................16 3.1.4 Surface water / Hydrology / Morphology..............................................17 3.1.5 Groundwater and Arsenic Contamination .............................................18 3.2 Biological Environment.................................................................................19 3.2.1 Ecology ..................................................................................................19 3.2.2 Aquatic Biology/ Wetlands....................................................................20 3.2.3 Aquatic Flora .........................................................................................20 3.2.4 Aquatic Fauna ........................................................................................20 3.2.5 Terrestrial Flora.....................................................................................21 3.2.6 Terrestrial Fauna ....................................................................................21 3.2.7 Forests....................................................................................................21 3.2.8 Rare and Endangered Species................................................................21 3.2.9 Protected Areas ......................................................................................21 3.3 Human and Economic Development .............................................................22 3.3.1 Infrastructure Facilities..........................................................................22 3.3.2 Water Supply and Sanitation .................................................................22 3.3.3 Transportation........................................................................................22 3.3.4 Land Use................................................................................................23 3.3.5 Industries................................................................................................23 3.3.6 Power Sources and Transmission ..........................................................24 3.3.7 Fisheries .................................................................................................24 3.3.8 Agricultural Productivity.......................................................................25 3.3.9 Water Management................................................................................27 3.3.10 Livestock................................................................................................28 Environmental Impact Assessment i Southwest Area Integrated Water Resource Planning and Management Project TA 4079-BAN 3.4 Social and Cultural Resources .......................................................................28 3.4.1 Population and Communities.................................................................28 3.4.2 Health.....................................................................................................30 3.4.3 Education ...............................................................................................30 3.4.4 Physical or Cultural Heritage.................................................................30 3.4.5 Current Use of Lands and Resources of Traditional Purposes by Indigenous People..................................................................................................30 3.4.6 Structures or Sites of Historical, Archaeological, Paleontological or Architectural Significance .....................................................................................30 4 Alternatives............................................................................................................31 5 Anticipated Environmental Impacts and Mitigation Measures .............................34 5.1 Key Considerations........................................................................................34 5.1.1 Scoping ..................................................................................................34 5.1.2 Bounding................................................................................................35 5.1.3 Project Components Used for Impact Assessment ................................36 5.1.4 Impact Identification and Assessment Matrix .......................................37 5.1.5 Air ..........................................................................................................39 5.1.6 Soils........................................................................................................39 5.1.7 Physiography..........................................................................................39 5.1.8 Hydrology and Hydraulics.....................................................................39 5.1.9 Drainage and Irrigation..........................................................................40 5.1.10 Erosion and Siltation..............................................................................42 5.1.11 Open Water Areas and Wetlands...........................................................42 5.1.12 Groundwater Recharge ..........................................................................43 5.1.13 Water Pollution ......................................................................................43 5.2 Impact on the Biological/Ecological Environment........................................43 5.2.1 Aquatic Ecosystem.................................................................................43 5.2.2 Terrestrial Ecosystem.............................................................................44 5.2.3 Endangered Species...............................................................................44 5.3 Impact on Human and Economic Development ............................................44 5.3.1 Industries................................................................................................44 5.3.2 Infrastructure