ESIA: “Infrastructure to prevent coastal erosion and to support aquaculture production in An Minh and An Bien districts, Kien Giang province” SFG1698 V4 REV Public Disclosure Authorized MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT(MARD) CENTRALOFFICE FOR WATER RESOURCES PROJECTS (CPO) Public Disclosure Authorized PROJECT: PROPOSED MEKONG DELTA INTEGRATED CLIMATE RESILIENCE AND SUSTAINABLE LIVELIHOODS PROJECT (MD-ICRSL) ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT (ESIA) Public Disclosure Authorized SUBPROJECT: INFRASTRUCTURE TO PREVENT COASTAL EROSION AND TO SUPPORT AQUACULTURE PRODUCTION IN AN MINH AND AN BIEN DISTRICTS, KIEN GIANG PROVINCE (Final) Public Disclosure Authorized March 2016 i ESIA: “Infrastructure to prevent coastal erosion and to support aquaculture production in An Minh and An Bien districts, Kien Giang province” TABLE OF CONTENTS 1. SUBPROJECT BACKGROUND ............................................................................................. 1 1.1. Summary on the background and rationale for the subproject ............................................ 1 1.2. The relationships of the subproject and other plans and programs approved by the state agencies .......................................................................................................................................... 5 2. RELEVANT LAWS, LEGISLATIONS AND REGULATIONS........................................... 6 2.1. Relevant national laws and regulations ................................................................................... 6 2.2. Applicable WB Safeguard Policies ........................................................................................... 9 3. ORGANIZATION OF ENVIRONMENTAL IMPACT ASSESSMENT ............................. 9 3.1. Organization of implementation ............................................................................................... 9 3.2. List of consultants working for this report and their roles .................................................. 10 4. ENVIRONMENTAL IMPACT ASSESSMENT METHODOLOGIES AND APPROACHES ................................................................................................................................ 11 4.1. Methods of ESIA ...................................................................................................................... 11 4.1.1. Rapid assessment method ............................................................................................... 11 4.1.2. Impact matrix method .................................................................................................... 12 4.1.3. Comparison method ....................................................................................................... 12 4.1.4. Impact Identification method ......................................................................................... 12 4.1.5. Listing method ............................................................................................................... 12 4.1.6. Method of Public Consultation and Disclosure of Information ....................................... 12 4.2. Other Methods ......................................................................................................................... 13 4.2.1. Method of information and data inheritance, summary and analysis .............................. 13 4.2.2. Field survey method ....................................................................................................... 13 4.2.3. Consensus method ......................................................................................................... 13 4.2.4. Sampling and analyzing methods in laboratory .............................................................. 13 CHAPER 1. SUBPROJECT DESCRIPTION ...................................................................... 14 1.1. Subproject name ...................................................................................................................... 14 1.2. Subproject owner ..................................................................................................................... 14 1.3. Subproject geographical location ........................................................................................... 14 1.4. Subproject Description (selected alternatives) ...................................................................... 14 1.4.1. Subproject’s objectives .................................................................................................. 14 1.4.2. Subproject components .................................................................................................. 15 1.4.2.1. Component 1: Construction of 9 new open-sluice gates along the western sea dike 15 1.4.2.2. Component 2: Protection of coastal erosion ................................................... 19 1.4.2.3. Component 3: Development of livelihood models........................................... 21 1.4.3. Construction method for the sluice gates ........................................................................ 26 1.4.3.1. Construction planning ....................................................................................... 26 1.4.3.2. Construction methods for the sluice gates ....................................................... 26 1.4.4. List of planned machinery and equipment ...................................................................... 29 1.4.5. Main supplies, equipment, materials for the subproject construction .............................. 29 1.4.5.1. Materials ............................................................................................................. 29 1.4.5.2. The energy supply conditions ........................................................................... 30 1.4.5.3. The mode of transportation of fuels and materials ........................................ 30 1.4.5.4. Summary of main materials of the subproject................................................ 30 1.4.6. The implementation schedule of the subproject .............................................................. 30 1.4.7. Investment cost .............................................................................................................. 31 1.4.8. Summary of the key information of the subproject .......................................................... 31 CHAPER 2. NATURAL ENVIRONMENT & SOCIO-ECONOMIC CONDITIONS IN THE SUBPROJECT AREA ........................................................................................................... 33 2.1. Natural setting .......................................................................................................................... 33 2.1.1. The geography, geology conditions ................................................................................ 33 2.1.1.1. Geographical locations, terrain, geomorphological conditions ..................... 33 ii ESIA: “Infrastructure to prevent coastal erosion and to support aquaculture production in An Minh and An Bien districts, Kien Giang province” 2.1.1.2. Hydrogeology and engineering geology ........................................................... 33 2.1.2. The conditions of climate, meteorology .......................................................................... 33 2.1.2.1. Temperature ...................................................................................................... 33 2.1.2.2. The wind velocity and direction ....................................................................... 34 2.1.2.3. Rainfall ............................................................................................................... 34 2.1.2.4. Other factors: ..................................................................................................... 35 2.1.3. Hydrology/oceanographic conditions ............................................................................. 36 2.1.3.1. Water level ......................................................................................................... 36 2.1.3.2. Flow, flow speed of water .................................................................................. 37 2.1.3.3. Other factors ...................................................................................................... 37 2.1.4. The status of soil, water, air quality ............................................................................... 38 2.1.4.1. Air quality .......................................................................................................... 38 2.1.4.2. Soil and sediment quality .................................................................................. 40 2.1.4.3. The quality of surface water environment ...................................................... 44 2.1.4.4. Groundwater quality ......................................................................................... 49 2.1.4.5. The wastewater characteristics ........................................................................ 50 2.1.4.6. The aquatic status .............................................................................................. 51 2.1.4.7. The current status of biological resources ....................................................... 52 2.1.4.8. Biodiversity around subproject area ............................................................... 54 2.2. Social and economic conditions .............................................................................................. 56 2.2.1. Economic conditions .....................................................................................................