41450-012: Preparing the Ban Sok-Pleiku Power Transmission
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Technical Assistance Consultant’s Report Project Number: 41450 February 2012 Preparing the Ban Sok–Pleiku Power Transmission Project in the Greater Mekong Subregion (Financed by the Japan Special Fund) Annex 6.1: Initial Environmental Examination in Viet Nam (500 KV Transmission Line and Substation) Prepared by Électricité de France Paris, France For Asian Development Bank This consultant’s report does not necessarily reflect the views of ADB or the Government concerned, and ADB and the Government cannot be held liable for its contents. All the views expressed herein may not be incorporated into the proposed project’s design. Ban-sok Pleiku Project CONTRACT DOCUMENTS – TRANSMISSION LINE Package – VIETNAM FINAL REPORT 500kV TRANSMISSION SYSTEM PROJECT ANNEX 6.1 – 500kV TRANSMISSION LINE & SUBSTATION Initial Environmental Examination (IEE) In VIETNAM Annex 6.1– TL & S/S IEE in VIETNAM ADB TA 6481‐REG BAN‐SOK (HATXAN) PLEIKU POWER TRANSMISSION PROJECT 500 kV TRANSMISSION LINE AND SUBSTATION – FEASIBILITY STUDY INITIAL ENVIRONMENTAL EXAMINATION (IEE) For: Vietnam Section: Ban Hatxan (Ban-Sok)-Pleiku 500kVA Double Circuit Three Phased Transmission Line Project: 93.5 km, Kon Tum and Gia Lai Province. As part of the: ADB TA No. 6481-REG: Ban Hatxan (BanSok) Lao PDR to Pleiku Vietnam, 500kVA Transmission Line and Substation Construction Feasibility Study. Draft: June 2011 Prepared by Electricite du France and Earth Systems Lao on behalf of Electricite du Vietnam (EVN), and for the Asian Development Bank (ADB). The views expressed in this IEE do not necessarily represent those of ADB’s Board of Directors, Management, or staff, and may be preliminary in nature. BAN SOK – PLEIKU DRAFT FINAL REPORT_IEE_VIETNAM SIDE LAO PDR / VIETNAM Asian Development Bank CONSULTANCY SERVICES FOR PREPARING THE BAN‐SOK PLEIKU POWER TRANSMISSION PROJECT 500 kV OHL_TA 6481‐REG Table of Contents 1 INTRODUCTION ...................................................................................................................... 1 1.1 Purpose of the IEE ................................................................................................................... 1 1.2 IEE Boundaries ......................................................................................................................... 4 1.3 Applicable ADB Guidelines and Vietnamese Legislation ......................................................... 4 1.3.1 Applicable ADB Guidelines .............................................................................................. 4 1.3.2 Vietnam Environmental Requirements and ADB’s Guidelines ....................................... 4 1.4 Methodology Applied .............................................................................................................. 6 1.5 Project Description .................................................................................................................. 6 1.6 Need for Project ...................................................................................................................... 6 1.7 Location ................................................................................................................................... 7 1.8 Size of Operation and Proposed Schedule of Implementation ............................................... 7 2 DESCRIPTION EXISTING CONDITIONS ................................................................................... 7 2.1 Biophysical Environment ......................................................................................................... 7 2.1.1 Geography ....................................................................................................................... 7 2.1.2 Topography, Geology and Soils ....................................................................................... 8 2.1.3 Climate ............................................................................................................................ 8 2.1.4 Air Quality and Noise ....................................................................................................... 8 2.2 Surface Water and Groundwater Resources ........................................................................... 9 2.2.1 Hydrology/Flood .............................................................................................................. 9 2.2.2 Groundwater ................................................................................................................... 9 2.2.3 Surface Water Quality ..................................................................................................... 9 2.3 Ecological Resources ............................................................................................................. 10 2.3.1 Forest and Wildlife ........................................................................................................ 10 2.3.2 Aquatic Resources and Fish ........................................................................................... 10 2.4 Socio‐Cultural and Economic Conditions .............................................................................. 11 2.4.1 Ethnicity ......................................................................................................................... 11 2.4.2 Economic Development ................................................................................................ 11 2.4.3 Trade and Services ........................................................................................................ 11 2.4.4 Infrastructure ................................................................................................................ 12 2.4.5 Power Supply ................................................................................................................. 12 2.4.6 Fresh Water Supply ....................................................................................................... 12 2.4.7 Health ............................................................................................................................ 12 2.4.8 Agriculture and Forestry ............................................................................................... 13 2.5 Mineral Resources ................................................................................................................. 13 2.6 Archaeology ........................................................................................................................... 14 2.7 Tourism .................................................................................................................................. 14 2.8 Landuse and Population Within The ROW ............................................................................ 14 3 SCREENING OF POTENTIAL IMPACTS AND MITIGATIVE MEASURES ................................. 14 3.1 Pre‐Construction Period ........................................................................................................ 14 3.1.1 IEE and EMP Not Applied .............................................................................................. 14 3.1.2 IV. Bird‐TL Interactions .................................................................................................. 16 3.2 Construction Period: Potential Environmental Effects and Mitigative Measures ................ 17 3.2.1 Soil Erosion and Stream Degradation ........................................................................... 17 3.2.2 Water Quality and Public Health Degradation .............................................................. 17 i BAN SOK – PLEIKU DRAFT FINAL REPORT_IEE_VIETNAM SIDE LAO PDR / VIETNAM Asian Development Bank CONSULTANCY SERVICES FOR PREPARING THE BAN‐SOK PLEIKU POWER TRANSMISSION PROJECT 500 kV OHL_TA 6481‐REG 3.2.3 Insect Born Diseases Outbreaks .................................................................................... 18 3.2.4 Degradation of Chu Mon Ray National Park Border Area ............................................. 18 3.2.5 Noise Pollution .............................................................................................................. 19 3.2.6 Air Pollution ................................................................................................................... 19 3.3 Operating Period: Potential Effects and Mitigative Actions ................................................. 20 3.3.1 Noise and Electrical Charge from Conductors and Insulators (Corona Effect) ............. 20 3.3.2 Health Effects Related to Electric Field and Magnetic Field Emissions ......................... 20 3.3.3 Spill Of Hazardous And Toxic Material ......................................................................... 22 3.3.4 Continuous Habitat Disruption in the TL Corridor ........................................................ 22 3.4 Social Assessment ................................................................................................................. 22 3.4.1 Public Safety and UXO ................................................................................................... 23 4 ANALYSIS OF ALTERNATIVES ............................................................................................... 23 5 MITIGATION, MONITORING: THE ENVIRONMENTAL MANAGEMENT PLAN .................... 24 5.1 Pre Construction Period ........................................................................................................ 24 5.1.1 Mitigation .....................................................................................................................