Technical Assistance Consultant's Report Preparing the Ban Sok
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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 3.1: Initial Environmental Examination in Lao PDR (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 – LaoPDR FINAL REPORT 500kV TRANSMISSION SYSTEM PROJECT ANNEX 3.1 – 500kV TRANSMISSION LINE & SUBSTATION Initial Environmental Examination (IEE) In Lao PDR Annex 3.1– TL & S/S IEE in Lao PDR ADB TA 6481‐REG BAN‐SOK (HATXAN) PLEIKU POWER TRANSMISSION PROJECT 500 kV TRANSMISSION LINE AND SUBSTATION – FEASIBILITY STUDY Initial Environmental Examination (IEE) For: Ban Hatxan Substation and 59km 500kVA Double Circuit Three Phased Transmission Line from Hatxan Substation to the Vietnam Border. Draft: Nov. 2010 Prepared by Electricite du France and Earth Systems Lao on behalf of Electricite du Lao (EDL), Ministry of Energy and Mines Lao PDR 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_LAO PDR 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 Executive Summary 1 INTRODUCTION ........................................................................................................................................... 1 1.1 PURPOSE OF THE IEE ..................................................................................................................................... 1 1.1.1 Identification of the Project and Project Proponent ........................................................................... 4 1.2 LEGAL AND ADMINISTRATIVE FRAMEWORK FOR ENVIRONMENTAL PROTECTION ........................................ 5 1.2.1 Legal Framework ................................................................................................................................ 5 1.3 IEE METHODOLOGY ...................................................................................................................................... 6 1.4 ACKNOWLEDGEMENT .................................................................................................................................... 7 2 DESCRIPTION OF THE PROJECT ............................................................................................................ 7 2.1 TYPE OF PROJECT .......................................................................................................................................... 7 2.2 CATEGORY OF PROJECT ................................................................................................................................. 7 2.3 NEED FOR PROJECT ....................................................................................................................................... 7 2.4 LOCATION ..................................................................................................................................................... 7 2.5 SIZE OF OPERATION AND IMPLEMENTATION SCHEDULE ............................................................................... 8 3 DESCRIPTION OF THE ENVIRONMENT ................................................................................................ 9 3.1 PHYSICAL RESOURCES ................................................................................................................................ 10 3.1.1 Climate .............................................................................................................................................. 10 3.1.2 Air Quality and Noise ........................................................................................................................ 11 3.1.3 Drainage, Geology and Soils ............................................................................................................ 11 3.1.4 Surface Water and Groundwater ...................................................................................................... 12 3.2 ECOLOGICAL RESOURCES: FOREST, WILDLIFE AND FISHES ........................................................................ 14 3.2.1 Terrestrial Wildlife ............................................................................................................................ 15 3.2.2 Aquatic Wildlife ................................................................................................................................. 15 3.2.3 Sensitive Habitat ............................................................................................................................... 15 3.3 ECONOMIC DEVELOPMENT .......................................................................................................................... 15 3.3.1 Industries and Employment ............................................................................................................... 16 3.3.2 Infrastructure and Facilities: Waste Management and Drainage..................................................... 16 3.3.3 Land Use Planning ............................................................................................................................ 17 3.3.4 Power Sources and Transmission ..................................................................................................... 17 3.3.5 Agricultural and Mineral Development ............................................................................................ 17 3.3.6 Agricultural and Mineral Development ............................................................................................ 20 3.4 SOCIAL AND CULTURAL RESOURCES ........................................................................................................... 20 3.4.1 Population and Community ............................................................................................................... 20 3.4.2 Public Health .................................................................................................................................... 21 3.4.3 Education Facilities .......................................................................................................................... 21 3.4.4 Socioeconomic Conditions ................................................................................................................ 21 3.4.5 Human Settlement in the ROW .......................................................................................................... 22 3.5 INSTITUTIONS .............................................................................................................................................. 22 4 ANALYSIS OF ALTERNATIVES .............................................................................................................. 23 4.1 OPTION 1 ALIGNMENT ................................................................................................................................. 23 4.2 OPTION 2 ALIGNMENT ................................................................................................................................. 24 4.3 COMPARISON OF PROPOSED ROUTES ............................................................................................................ 24 5 SCREENING OF POTENTIAL IMPACTS AND MITIGATIVE MEASURES .................................... 25 5.1 PRECONSTRUCTION PERIOD ......................................................................................................................... 25 5.1.1 Concession Agreement Documents Do not Contain Environmental Safeguard Specifications as Defined in EMP of IEE .................................................................................................................................... 25 5.1.2 Vegetation and Soil Erosion Allowed to Proceed ............................................................................. 26 5.1.3 Loss of Old Growth Forest Patches and Biodiversity ....................................................................... 27 5.1.4 Construction Compliance Monitoring and Inspection Not Applied .................................................. 27 5.1.5 Bird-TL Interactions .......................................................................................................................... 28 5.1.6 Loss of Biodiversity ........................................................................................................................... 28 5.2 CONSTRUCTION PERIOD: POTENTIAL ENVIRONMENTAL EFFECTS AND MITIGATIVE MEASURES ................. 29 5.2.1 Soil Erosion and Stream Degradation .............................................................................................. 29 5.2.2 Water Quality and Public Health Degradation ................................................................................. 29 5.2.3 Insect Born Diseases Outbreaks ........................................................................................................ 30 5.2.4 Terrestrial Habitat Loss ...................................................................................................................