FINAL REPORT on Environmental Impact Assessment (EIA) Study of Sirajganj 150MW Peaking Power Plant Construction Project at Sirajganj
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NORTH-WEST POWER GENERATION COMPANY LTD., DHAKA (AN ENTERPRISE OF BPDB) FINAL REPORT on Environmental Impact Assessment (EIA) Study of Sirajganj 150MW Peaking Power Plant Construction Project at Sirajganj MARCH 2010 Submitted by: ENGINEERS ASSOCIATES LIMITED 7/7, SIR SYED ROAD, BLOCK– A MOHAMMADPUR HOUSING ESTATE, DHAKA-1207 TEL.: 9111358, 8117246 FAX.: 880-2-8118512 E-MAIL: [email protected] Final Report on EIA Study of Sirajganj 150MW PPP Table of Contents ABBREVIATIONS USED .................................................................................i EXECUTIVE SUMMARY .................................................................................1 Chapter 1: INTRODUCTION...........................................................................1 1.1 Background .........................................................................................1 1.2 Project Outline.....................................................................................2 1.3 Policy, Legal and Administrative Framework ...................................2 1.4 Study Area ...........................................................................................3 1.5 Outline of Methodology ......................................................................3 1.5.1 Major Activities ...............................................................................................3 1.5.2 Study Team and Their Tasks ..........................................................................4 1.6 Report Structure..................................................................................6 Chapter 2: PROJECT JUSTIFICATION ........................................................9 2.1 Introduction .........................................................................................9 2.2 Demand-Supply Situation.................................................................10 Chapter 3: DESCRIPTION OF THE PROPOSED PROJECT .....................15 3.1 Project Location ................................................................................15 3.2 Site Development and Construction ...............................................15 3.3 Equipment and Processes ...............................................................15 3.4 Electricity Generation and Transmission........................................16 3.5 Gas Pipe Line for Power Generation ...............................................16 3.6 Water Management ...........................................................................16 3.7 Waste and Emission Management ..................................................17 3.8 Fire Fighting and Protection System...............................................18 3.9 Operation and Maintenance .............................................................19 3.10 Others ................................................................................................20 Chapter 4: EXISTING ENVIRONMENT: PHYSICAL....................................21 EAL i Final Report on EIA Study of Sirajganj 150MW PPP 4.1 Introduction .......................................................................................21 4.2 Climate ...............................................................................................21 4.2.1 Rainfall.....................................................................................................21 4.2.2 Ambient Air Temperature........................................................................22 4.2.3 Relative Humidity....................................................................................24 4.2.4 Wind Speeds and Direction .....................................................................25 4.2.5 Seismic Data............................................................................................27 4.3 Topography and Drainage...............................................................29 4.4 Geology and Soils.............................................................................29 4.4.1 Geology....................................................................................................29 4.4.2 Soils..........................................................................................................30 4.5 Hydrology and Water Resources....................................................30 4.5.1 River Water.............................................................................................30 4.5.2 Groundwater...........................................................................................32 4.6 Air Quality..........................................................................................32 4.7 Noise Level ........................................................................................33 4.7.1 General.....................................................................................................33 4.7.2 Noise Sources...........................................................................................34 4.7.3 Point Source Noise..................................................................................34 4.7.4 Line Source Noise...................................................................................34 4.7.5 Noise Reduction Factors..........................................................................34 4.7.6 Hard versus Soft Sites..............................................................................35 4.7.7 Topography, Vegetation and Atmospheric Factors ................................35 4.7.8 Baseline Noise Conditions......................................................................35 4.7.9 Environmental Conditions ......................................................................36 4.7.10 Traffic Noise............................................................................................36 4.7.11 Construction Noise...................................................................................36 4.7.12 Combined Effect of Multiple Noise Sources...........................................37 4.7.13 Field Noise Level Data ............................................................................38 4.8 Water Quality.....................................................................................39 4.8.1 River Water.............................................................................................39 4.8.2 Ground Water..........................................................................................40 Chapter 5: EXISTING ENVIRONMENT: ECOLOGICAL ..............................41 5.1 Terrestrial Ecosystem......................................................................41 5.1.1 Terrestrial Flora .......................................................................................41 5.1.2 Forest and Homestead vegetation ............................................................43 5.1.3 Biodiversity..............................................................................................43 5.1.4 Terrestrial Fauna ......................................................................................43 5.2 Aquatic Ecosystem ...........................................................................44 5.2.1 General....................................................................................................44 5.2.2 Aquatic Flora...........................................................................................45 EAL ii Final Report on EIA Study of Sirajganj 150MW PPP 5.2.3 Aquatic Fauna..........................................................................................45 5.3 Water quality......................................................................................47 5.4 Protected Area (Sensitive Area).......................................................48 5.5 Rare and Endangered Species.........................................................49 5.5.1 Rare and Endangered Fish Species.........................................................49 5.5.2 Migratory Bird Species...........................................................................49 Chapter 6: EXISTING ENVIRONMENT: SOCIO-ECONOMIC .....................50 6.1 Introduction .......................................................................................50 6.2 Land Use and Utilities.......................................................................50 6.3 Utilization of River Water..................................................................50 6.4 Utilization of Underground Water ....................................................51 6.5 Landscape .........................................................................................51 6.6 Demographic Characteristics ..........................................................51 6.7 Education, Employment and Economics........................................52 6.7.1 Education................................................................................................52 6.7.2 Employment............................................................................................53 6.7.3 Economics...............................................................................................53 6.8 Industry..............................................................................................53 6.9 Agriculture.........................................................................................53 6.10 Fisheries ............................................................................................54 6.11 Public Health .....................................................................................54