World Bank



PROJECT CONSTRUCTION INVESTMENT MANAGEMENT AUTHORITY PROVINCE

MANAGEMENT UNIT OF DAM REHABILITATION AND SAFETY IMPROVEMENT PHU YEN PROVINCE

REPORT ON

ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT

SUBPROJECT: DAM REHABILITATION AND SAFETY IMPROVEMENT (WB8) PHU YEN PROVINCE

PROJECT: DAM REHABILITATION AND SAFETY IMPROVEMENT (DRSIP/WB8) FUNDED BY THE WORLD BANK

Phu Yen, January 2020

PROJECT CONSTRUCTION INVESTMENT MANAGEMENT AUTHORITY PROVINCE

MANAGEMENT UNIT OF DAM REHABILITATION AND SAFETY IMPROVEMENT PHU YEN PROVINCE

PROJECT: DAM REHABILITATION AND SAFETY IMPROVEMENT (WB8)

REPORT ON

ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT

SUBPROJECT: DAM REHABILITATION AND SAFETY IMPROVEMENT (WB8) PHU YEN PROVINCE

|REPRESENTATIVE OF THE PROJECT OWNER |REPRESENTATIVE OF THE CONSULTANCY UNIT |

Phu Yen, January 2020

LIST OF ABBREVIATIONS

|AH |Affected Household |

|CPC |Communal People’s Committee |

|CPO |Central Project Office |

|DPC |District People’s Committee |

|DSR |Dam Safety Report |

|DRSIP |Dam Rehabilitation and Safety Improvement |

|DED |Detailed Engineering Design |

|ECOPs |Environmental Code of Practice |

|SA |Social Assessment |

|EIA |Environment Impact Assessment |

|ESMF |Environment and Social Management Framework |

|EMDF |Ethnic Minority Development Framework |

|EMDP |Ethnic minority Development Plan |

|EM |Ethnic minority |

|EMP |Environement Management Plan |

|ESIA |Environment and Social Impact Assessment |

|ESMP |Environment and Social Management Plan |

|FPIC |Free, prior and informed consultation |

|IPM |Integrated Pest Management |

|ICM |Integrated Crop Management |

|MARD |Ministry of Agriculture and Rural Development |

|MCM |Million Cubic Meters |

|MoIT |Ministry of Industry and Trade |

|MoNRE |Ministry of Natural Resources and Environment |

|WB |World Bank |

|FFS |Farm Field School |

|O&M |Operation and Maintenance |

|OP/BP |Policies of World Bank |

|GAP |Gender Action Plan |

|IDA |International Development Agency |

|RAP |Resettlement Action Plan |

|PPC | Provincial People’s Committee |

|PMU |Project Management Unit |

|PMB |Project Management Board |

|PoE |Panel of Experts |

|PPMU |Provincial Project Management Unit |

|PSC |Project Steering Committee |

|SRI |System Rice Intensification |

|TOF |Training of farmers |

|VND |Vietnamese dong |

|TOR |Terms of Reference |

|UNDP |United Nations Development Program |

|WHO |World Health Organization |

|WUA |Water Users Association |

|UXO |Unexploded ordnance |

TABLE OF CONTENT

LIST OF ABBREVIATIONS 3

TABLE OF CONTENT 5

LIST OF TABLES 8

LIST OF FIGURES 10

SUMMARY 11

CHAPTER I: PROJECT INTRODUCTION 18

1.1. Approach and method of implementation 18

1.1.1. Methods of social impact assessment 18

1.1.2. Environment impact assessment method 19

1.2. Implementation arrangement of ESIA report 20

CHAPTER II: DESCRIPTION OF SUBPROJECT 22

2.1. Objective of the subproject 22

2.2. Location of subproject implementation 22

2.3. Status of works and construction solutions 24

2.4. Summary of excavation volume, construction materials and machinery 37

2.4.1. Summary of excavation volume 37

2.4.2. Summary of volume of materials 37

2.4.3. Mobilization of vehicles and machinery for construction 38

2.4.4. Distance, transport route of materials 40

2.5. Auxiliary items 41

2.5.1. Electricity, water for construction and living 41

2.5.2. Demand for workers’ houses and camps 41

2.5.3. Construction route 41

2.5.4. Landfill, soil pits 43

2.6. Pre-construction activities 45

2.7. Material transportation plan 45

2.8. Operational and maintenance activities 45

2.9. Dam safety plan 45

2.10. Subproject implementation schedule 46

2.11. Cost of implementation 47

CHAPTER 3: LEGAL, ADMINISTRATIVE AND POLICY FRAMEWORK 48

3.1. Government Regulation 48

3.2. The World Bank’s safeguard policies 51

3.2.1. Project level 51

3.2.2. Subproject level 51

CHAPTER 4: NATURAL, SOCIO-ECONOMIC CONDITIONS AND ENVIRONMENTAL STATUS 58

4.1. Natural conditions 58

4.1.1. Geographical and geological conditions 58

4.1.2. Topographic and geological conditions 59

4.1.3. Climate and meteorological conditions 60

4.1.4. Hydrological conditions 61

4.1.5. Biodiversity 69

4.2. The impact of climate change on Phu Yen province 71

4.2.1. Types of natural disasters often occur in Phu Yen province 71

4.2.2. The impact of climate change on Phu Yen province 72

4.3. Environmental status 72

4.3.1. Quality of ambient air environment and nois 73

4.3.2. Environmental quality of surface water 73

4.3.3. Quality of groundwater environment 73

4.3.4. Quality of soil environment 73

4.4. General socio-economic characteristics of sub-project areas 74

4.4.1. Socio-economic characteristics of subproject communes 74

4.4.2. Survey result of households benefited from subproject 82

4.5. Sensitive works 94

CHAPTER 5: ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT 97

5.1. Types and scale of impacts 97

5.2. Potential positive impacts on environment and society 98

5.2.1. Potential negative impacts from the subproject on the social environment 98

5.2.2. Assessment and forecasting of impacts during the process of preparing the subproject 98

5.2.3. Impact evaluation and projection during subproject construction phase 108

5.2.4. Predictors of specific impacts 135

5.2.5. Evaluating and forecasting of impacts during the operational phase of the subproject 140

5.3. Analysis of types of impact 140

5.3.1. Cumulative impacts 140

5.3.2. Direct Impact 141

5.3.3. Indirect impacts 141

5.3.4. Temporary impact 141

5.3.5. Long term impact 141

CHAPTER VI: ALTERNATIVE ANALYSIS 142

6.1. Without subproject 142

6.2. The option of implementing the sub-project 143

CHAPTER VII: ENVIRONMENTAL AND SOCIAL MANAGEMENT PLAN (ESMP) 147

7.1. Objectives 147

7.2. Mitigation measures 147

7.2.1. Impact mitigation measures in the subproject preparation measures 147

7.2.2. C Mitigation measures during construction phase 149

7.2.3. Mitigation measures for specific impacts 172

7.2.4. Mitigation measured in operation phase 177

7.3. Implementation arrangement 178

7.3.1. Project management 178

7.3.2. Roles and responsibilities for environmental and social safeguard management 179

7.4. Environmental Compliance Framework 183

7.4.1. Environmental tasks of the Contractor: 183

7.4.2. Contractor’s safety, social and environmental officer 183

7.4.3. Social and environmental monitoring during construction phase (Monitoring Consultant) 184

7.4.4. Compliance with contract requirement and legal regulations 184

7.4.5. Report System 185

7.5. Grievance redressing mechanism 186

7.5.1. Complaints and complaint settlement procedures 186

7.5.2. Contractor and construction supervision consultant: 187

7.5.3. Grievance redressing mechanism of WB 187

7.6. ESMP Implementation plan 188

7.6.1. ESMP Implementation Plan of the Contractor 188

7.6.2. Subproject commencement and personnel 188

7.7. Capacity development and training plan 188

7.7.1. Training on safety policies 188

7.7.2. Occupational health and safety training 189

7.7.3. Orientation of visitors 189

7.7.4. Training for new contractors and workers 189

7.7.5. Basic training on occupational health and safety 189

7.8. Environmental quality monitoring plan 190

7.8.1. The compliance monitoring 190

7.8.2. Monitoring of environment quality 190

7.8.3. Dam safety monitoring 192

7.9. Estimated cost 192

CHAPTER VIII: COMMUNITY CONSULTATION AND INFORMATION DISCLOSURE 199

8.1. Purpose and method 199

8.1.1. Purpose of community consultation 199

8.1.2. Principles of community consultation 199

8.2. Consultation process 200

8.2.1. Brief description of consultation process at commune/town level and mass organizations 201

8.2.2. Summary of consultations with community directly affected by Subproject 202

8.3. Results of public consultation 202

8.4. Feedback and commitment of the Project Owner 208

8.5. Information Disclosure 209

CONCLUSIONS AND RECOMMENDATIONS 210

Conclusion 210

Recommendations 210

REFERENCES 211

ANNEX 212

LIST OF TABLES

Table 1: The list of reservoirs under the subproject of “Dam rehabilitation and Safety Improvement (WB8), Phu Yen province” 11

Table 2: Cost estimate for ESMP implementation 16

Table 3: List of persons participating in implementation 21

Table 4: Geographic location of reservoir under the subproject 22

Table 5: Summary of some specifications of reservoirs 24

Table 6: Summary of current information of reservoirs and construction works of the Subproject 25

Table 7: Total volume of excavated soil and embankment soil of the subproject 37

Table 8: Summary of materials volume of the subproject 37

Table 9: list of machines and equipment for construction of subproject 38

Table 10: Distance, transport route of materials 40

Table 11: Expected number of workers in construction sites 41

Table 12: Volume and location of landfill, transportation routes 43

Table 13: Volume and location of soil pits during construction 44

Table14: Progress implementation of subproject 47

Table 15: Cost of implementation of subproject 47

Table 16: Summary of environmental assessment process of WB & Government 53

Table 17: Distribution table of air temperature characteristics 60

Table 18: Table of distribution of relative humidity characteristics (Unit:%) 60

Table 19: Table of wind speed in months of the year (Unit: m/s) 60

Table 20: The amount of evaporation of the months of the year (Unit: mm) 61

Table 21: Rainfall design irrigation area 61

Table 22: Average rainfall for years, months 61

Table 23: The watershed characteristics of the reservoirs under the subproject 61

Table 24: Result of calculating the annual flow characteristics 62

Table 25: Calculation table of results for the design year flow 62

Table 26: Distribution table of design annual flow 63

Table 27: Results table of flood peak flow calculations Qmax 63

Table 28: Chart flood diagram of reservoirs belong subproject 64

Table 29: Details on socio-economic conditions of subproject communes 77

Table 30: Average number of demographics participated in the survey 82

Table 31: Gender of surveyed people 82

Table 32: Age of surveyed people 83

Table 33: Size of households participating in the survey 84

Table 34: Ethnic minority composition of respondents 84

Table 35: Education level of surveyed people 85

Table 36: Occupation of the respondents 85

Table 37: Total income of households in the subproject area 87

Table 38: Type of housing of the household 88

Table 39: Distance from home to service points in the subproject area 89

Table 40: Water source used for eating and daily activities of households 89

Table 41: State of using toilet of household 90

Table 42: Gender in local community participation (%) 91

Table 43: Division of labor by gender in production and living (%) 91

Table 44: Gender in making decision in family (%) 92

Table 45: Poverty situation of ethnic minority people in the districts of the subproject 92

Table 46: Situation of ethnic minorities in the project communes (people) 93

Table 47: Understand the nature of HIV/AIDS 93

Table 48: Awareness about the way of HIV / AIDS transmission 93

Table 49: Awareness of people about HIV/AIDS (%) 94

Table 50: Summary of the status of sensitive works 94

Table 51: The criteria for classification of negative impacts 97

Table 52: Sources of impact during construction preparation phase 99

Table 53: Statistics of impacts and scope of land acquisition 101

Table 54: Summary of affected trees and crops 102

Table 55: Pollutant load coefficient for trucks running on roads 103

Table 56: Number of vehicles transporting luminescent vegetation 104

Table 57: Pollutant load emissions of means of transport of transportation of luminescent vegetation 104

Table 58: : Pollutant load emissions of means of transport of transportation of luminescent vegetation in 1hour 104

Table 59: Concentrations of pollutants in the air due to transportation of luminescent plants in reservoirs of Phu Xuan, Dong Tron, Hon Dinh, Hoc Ram and Dong Khon 105

Table 60: Concentrations of pollutants in the air due to transportation of luminescent plants in reservoirs of Gieng Tien; Ea Ddin1, Hoa Thuan 106

Table 61: Biomass of 1m2 of vegetation type 107

Table 62: The amount of biomass generated during the preparation stage 107

Table 63: Summary of source of impact during construction phase 108

Table 64: Aggregate volume of air and dust pollutant emission sources 111

Table 65: Volume of construction materials 111

Table 66: Pollutant load of means of transport of transportation of luminescent vegetation in 1hour 112

Table 67: Concentrations of pollutants in the air from the transportation of construction materials are swept away by the wind 113

Table 68: Pollutant load coefficient for trucks running on roads (for 1000 km) 113

Table 69: Number of turns transport vehicles 113

Table 70: Load of pollutants from cars transporting materials 114

Table 71: Concentration of pollutants through transport of materials 115

Table 72: Forecast of oil consumption in construction activities at the construction site 115

Table 73: Load of pollutants from machinery and equipment during construction 116

Table 74: Concentration of pollutants from the operation of construction machinery 116

Table 75: Pollution emission coefficient due to construction activities 117

Table 76: The amount of dust generated by the excavation and embankment and leveling process at the construction site 117

Table 77: D ust concentration due to operation to excavation and embankment 118

Table 78: Calculation results of noise level at source during construction phase 119

Table 79: Forecast of noise reduction according to distance from source 120

Table 80: Vibration level decreases with the distance in construction 122

Table 81: Estimates of sources of substances causing water contaminants 124

Table 82: Concentration of pollutants of domestic wastewater during construction phase 124

Table 83: Concentration of pollutants in construction waste water 125

Table 84: Predict potential soil erosion due to rain from construction items of the subproject 126

Table 85: Estimated volume of excavation, embankment and domestic waste generated from subproject construction activities 127

Table 86: Beneficial area and number of HHs likely to be affected due to interruption of irrigation water supply during the subproject construction 131

Table 87: Specific impacts of the subproject 136

Table 88: Cost estimate for compensation and resettlement 148

Table 89: Environmental code of practices (ECOP) to mitigate general impacts during the construction process 151

Table 90: Mitigation measures for sensitive works 172

Table 91: General mitigation measures for impacts during operation phase 177

Table 92: Roles and responsibilities of stakeholders 180

Table 93: Requirements on report system 185

Table 94: Summary of the contents of quality monitoring of environmental components in the construction phase and operation and maintenance 191

Table 95: Estimated costs for ESMP 192

Table 96. Budget source for ESMP monitoring 192

Table 97: Summary of mitigation measures 194

Table 98: Time and location of consultation meeting 201

Table 99: Summary of consultation results and project owner comments 202

Table 100: Summary of consultations on environmental and social issues of affected households 208

LIST OF FIGURES

Figure 1: Locations of subproject reservoirs 23

Figure 2: Map of the administrative units of Phu Yen province 58

Figure 3: Structure of environmental management and supervision organization 178

Figure 4: Organizational chart of subproject safeguard performance 179

SUMMARY

1. Introduction: The project of: “Dam rehabilitation and Safety Improvement (DRSIP/WB8) funded by the World Bankwas approved by Prime Minister in accordance with the Decision No. 1858/QĐ-TTg dated 02/11/2015 and the Feasibility Study Report of the project was approved by Minister of Ministry of Agriculture and Rural Development through Decision No. 4638/QĐ-NN-HĐQT dated 09/11/2015.

2. Subproject: dam rehabilitation and safety improvement (WB8) Phu Yen province, PPMU issued Decision No. 61 / QD-BQL-WB8, dated 08/6/2017 on approving the plan for selecting contractors for investment preparation phase (phase 2); No. 20 / QD-BQL-WB8, dated January 23, 2018, approving the results of evaluation of documents presenting interest in package number C1-PHUYEN-CS1; No. 69 / QD-BQL-WB8, dated March 26, 2018, approving the results of contractor selection of package number C1-PHUYEN-CS1: Consultancy for preparation of Feasibility Study Report and Dam Safety Report under the Dam Safety Repair and Improvement sub-project in Phu Yen Province. Accordingly, the subproject includes 8 water reservoirs:

Table 1: The list of reservoirs under the subproject of “Dam rehabilitation and Safety Improvement (WB8), Phu Yen province”

|No. |Name of reservoirs|Capacity |Height of dam |Construction level |Location of the subproject |

| | |(x106 m3) |(m) | | |

|1 |Phu Xuan |11.22 |23.80 |II |Xuan Phuoc commune, Dong Xuan district |

|2 |Dong Tron |19.55 |29.00 |II |An Nghiep commune, Tuy An district |

|3 |Hon Dinh |0.710 |4.70 |IV |Hoa Xuan Tay commune, Dong Hoa district |

|4 |Gieng Tien |1.45 |7.60 |IV |Son Ha commune, Son Hoa district |

|5 |Dong Khon |2.716 |16.20 |III |Hoa Xuan Tay commune, Dong Hoa district |

|6 |Hoc Ram |2.91 |17.80 |II |Hoa Tan Tay commune, Tay Hoa district |

|7 |EaDin 1 |1.45 |13.00 |III |Ea Bar Commune, Song Hinh District |

|8 |Hoa Thuan |1.45 |9.00 |IV |Son Dinh commune, Son Hoa district |

3. The status of reservoirs under the subproject “Dam rehabilitation and safety improvement (WB8) Phu Yen province: Most of reservoirs are homogeneous earth dams which have been exploited for a long time and have not been upgraded, resulting in deterioration, damage, and weakness in preventing flood. Main items of the works are likely to cause unsafety. In addition, most of the works were built between 1983 and 2004 basing on hydrological documents, natural conditions, design standards which are no longer suitable for the situation of climate change, especially the current complex climate change. Facing with the above mentioned situation, repairing, upgrading and ensuring of safety for the works is very necessary

Head works will be repaired and upgraded; ensure safety for reservoirs in exploitation and operation; ensure irrigation water supply for 4,509.05 ha of agriculture land.

Status of reservoirs is presented in details in Annex 2.2.1 of this report.

4. Description of the subproject. The construction items of the subproject are implemented in 8 reservoirs, with the aim of supporting the implementation of the Program to ensure safety of reservoirs through repair, reinforcement, upgrading of priority dams, strengthening of management capacity and safe operation of dams to protect people specifically residence and socio-economic infrastructure in the downstream area.

Specific objectives:

a) To secure the safety of reservoirs and key works.

b) To improve the efficiency of irrigation works in service of intensive cultivation, increase productivity and quality of products, develop specialized areas of high yielding and high economic value, maximize potential of agricultural land in the region.

c) To reduce water loss, to ensure the water demand for people's life, the development of local industries, and socio-economic development in the subproject area in particular and Phu Yen province in general.

d) To create natural landscapes, improve the ecological environment, promote tourism development in the region.

Construction items:

a) Repairing, upgrading soil dams, reinforcing dam crest, repairing upstream slope, downstream slope, reworking slope drainage systems and treating dams;

b) Repair, replace water intake culverts depending on the extent of damage;

c) Reinforce and renew to improve drainage capacity of spillway, it is possible to expand flood discharge spillways and overflow with surface discharge gates or self-fuse spillways;

d) Management road: Depending on the current status of each reservoir, construction of concrete pavement structure conforms to rural road standards.;

e) Renovating reservoir managers house: grade IV houses have electricity and water systems for daily life and reservoir management;

f) Monitoring equipment: To build a system of upstream and downstream water level observation posts

5. Results of environmental and social screening: The subproject is not located in or near natural habitats and there is no rare or endangered animals and plants found in the subproject area. There are also no sensitive construction or monuments that have cultural, religious or historical significance in and around the subproject. Regarding ethnic minorities, there are 4 communes under the subproject that have ethnic minorities: Xuan Phuoc, Hoa Tan Tay, Ea Bar, Son Dinh, The ethnic minority groups here are mainly Cham and Khmer. The subproject will only upgrade the dam on existing reservoirs, which has been screened for the environment and society and determined that the subproject does not cause significant impacts on the environment and society in the project implementation area and the subproject is rated as category B in terms of environmental and social impacts. The World Bank policies are triggered under the subproject including: OP/BP 4.01 on environmental assessment, OP 4.09 on pest management, OP/BP 4.37 on safety of dams, OP/BP 4.12 on involuntary resettlement; OP/BP 4.10 Indigenous peoples, and OP/BP 4.11 Physical Cultural Resources.

6. The social and environmental impact assessment aims to identify both positive and negative impacts of the subproject, thereby proposing appropriate mitigation measures to control and manage those impacts, in order to optimize the benefits of the subproject.

7. Social and environmental impacts of the subproject: The subproject brings both positive and negative impacts.

(a) Positive impacts:

- The subproject will repair and upgrade safety of head works of reservoirs to ensure safety for people and their assets who live in the downstream area, and communes in subproject and residents of neighboring affected areas;

- After being implemented, the subproject will improve the storing of reservoirs, improve capacity of storing underground water in the nearby area;

- Regularly and sustainably provide irrigation water for agriculture cultivation area in the downstream area;

- Improve landscape in the reservoir area and provide habitat aquatic life.

(b) Negative impacts during pre-construction and construction phases, including:

- The implementation of the subproject will recover the productive land of the households in subproject area. The implementation of the sub-project will permanently acquired a total of 49,274.73 m2 belonged to 16 households and 5 organizations are People's Committees of communes, in which: 2 crops Rice land: 771.29 m2, Other annual crops land: 1,533.66 m2, Land for perennial crops: 172,35 m2, Production forest land: 19.121,96 m2, Residential land: 36,17 m2 and: 27,639.3 m2 Public land managed by the CPC includes 12.428,6 m2 Other annual crops land and 15,146 m2 Unused hilly land and 64,7 m2 Unused land. In addition, the project will temporarily acquired 14,500 m2 of unused land for landfill purpose.

- According to the results of consultations and interviews in the subproject localities, explosive objects have not been detected in the subproject communes. However, Phu Yen province has repeatedly discovered explosive objects and has been handled by the authorities. According to a report on the status of landmine and UXO contamination (Vietnam National Mine Action Center) Phu Yen province has 9/9 districts (cities and towns) identified as contaminated with UXO as: Tuy Hoa city, Song Cau town and districts: Dong Xuan, Tuy An, Son Hoa, Song Hinh, Tay Hoa, Phu Hoa and Dong Hoa; A total of 113/113 communes (wards and towns) were identified as being contaminated with UXO, accounting for 100%, UXO contaminated area is 107,950.22 hectares, accounted for 21.4% of the province's natural area. Therefore, UXO can be found in the construction area or the land mine, stone. In order to minimize risks, the subproject owner should contact the competent authorities to conduct mine clearance to assess the risk and provide confirmation of the safety of explosive objects before construction.

- Site clearance activities, create construction ground, transporting waste due to clearance of vegetation, soil stone will create impacts: Dust, exhaust gas, noise, vibration affect construction workers, people in the subproject area; Wastewater from worker activities and stormwater runoff with high suspended solids content due to loss of vegetation cover will affect the quality of receiving water and soil quality in the subproject area; Solid waste of workers and waste from clearing vegetation cover if not managed well will affect the surrounding environment and landscape of the subproject area.

- Another activity in the subproject preparation phase is geological exploration drilling. In total, the geological survey unit has drilled 17 boreholes with the depth of 11-40m at the subproject locations (Specific positions are presented in the feasibility study report of the subproject) to understand geological conditions and aquifer characteristics, at the same time conducting geophysical karota in the borehole, If the drilling process is not handled properly, it will affect the quality of groundwater sources due to the infiltration of pollutants through boreholes to groundwater.

- The impacts related to construction activities such as noise, vibration, air pollution due to dust and emissions, water pollution, waste, plant and animal ecosystems, social risk due to site clearance and construction affecting traffic safety, community infrastructure, risk of accidents, community conflict and infectious disease and disruption of business activities have been also determined and assessed in the report. Moreover, during the construction process, it may be blocked water source to construct the works of the subproject which may affect productivity and water resource serving agriculture of 7 communes in the subproject area. The works of the subproject are scattered in the 7 communes of 6 districts and the implementation location is mainly on agriculture land which is far from residential and important areas and does not affect forestry land; therefore, the negative impacts of the subproject are assessed at low to average level and can be controlled by a suitable management plan. However, there are still long term impacts on the subproject area such as land mine and dumping sites which can cause degradation of agricultural land, unused hill land, and vacant land within the temporarily borrowed land of localities in the subproject area during the process of using.

(c) Negative impacts during the operational stage:

- Dam safety risks can occur in the event of a broken dam or flood discharge causing flooding downstream; Accident related to drowning;

- Domestic waste from eco-tourism activities in some reservoirs has developed this type of service;

- The implementation of the subproject does not increase the capacity of the reservoir, does not increase the irrigated area in the downstream area and does not affect the crop structure in the subproject area. However, the repair of the culverts has been damaged and the leakage of water will be overcome to ensure more stable irrigation water regulation and will provide adequate irrigation water for the subproject area in the drought season, restore the volume and initial irrigated area of ​​the reservoir, At that time, the cultivation of agricultural crops for areas that lack water in the drought season will be restored, on the other hand, when there is enough irrigation water and water is frequently circulated, it leads to changes in living environment, creating conditions for harmful organisms and plants to grow, This is also the cause of outbreaks of diseases and pests for agriculture. Therefore, it will increase the number of pesticides and fertilizers in the area of water shortage and increase the pest in the subproject area. On the other hand, the use of chemicals to kill termites in the dam body if not well managed also affects the surrounding environment if due to residue and disposal is not in the right place or termite-killing chemicals are swept away by rainwater. Therefore, an integrated pest management (IPM) plan for this subproject is required;

- During maintenance, repairs can stop provision of irrigation water temporarily affecting production and livestock of downstream people..

8. Mitigation measures for impacts: To manage these impacts, an Environmental and Social Management Plan (ESMP) has been prepared as an integral part of this ESIA report with proposed institutional arrangements for impact management, environmental management and monitoring, reporting requirements, capacity building, budgeting for implementation. The social assessment report (SA) is made to aim at the following objectives: (i) Identify social issues and potential impacts of proposed infrastructure investment items, (ii) Provide input of social aspects and participation in the feasibility study project design and basic design phase, paying attention to the needs of affected communities, (iii) Provide specific recommendations on infrastructure investment management with high social risks and identify criteria and methodologies to determine whether the investment is socially acceptable or not, (iv) The study provides a basic source of data for evaluating project completion results. A separate Resettlement Action Plan/Compensation and Resettlement plan has been prepared to deal with the impacts of land acquisition.

Preparation phase:

- Implement RAP; SA.

- Integrating environmental mitigation measures into technical design.

- Consult people about the actual time of repairing dam with purpose of mitigating impacts of three phases: preparation, construction of subproject and operation of subproject.

- Demining and demining should be carried out strictly and fully in the subproject implementation area. It is necessary to hire a unit with full functions and tasks of according to state regulations.

- During the geological exploration drilling process, it is necessary to strictly follow exploration drilling techniques. The boreholes need to be backfilled ensuring no spillage of pollutants to the drilled hole and infiltrationinto the aquifer.

- Waste from the site clearance process has a small quantity but needs to be transported in the right place or coordinate with the local authorities to handle the regulations..

- Putting provisions on implementing mitigation measures into construction bidding documents and construction contracts.

Construction phase:

- Require contractors to strictly and fully implement mitigation measures for the impacts mentioned in the Environmental and Social Impact Assessment Report, social impact assessment report of the subproject and negative impacts during construction phase will be minimized through ECOPs and mitigation measures for site-specific impacts.

Operation phase:

- During the operational process, the upgraded and repaired items of the subproject such as: anti- seepage on dam body, treatment of loss of water due to damaged items will improve the capacity of storing of water and ensure the capacity of regulating water through repairing of intake. Thus, it will increase irrigation area that has been not provided enough for designed irrigation area because of losing water of reservoirs. Therefore, introduction and promotion of application of integrated pest management in the areas of irrigation services are necessary.

- PPMU frequently monitor to ensure that the damaged structures will be repaired and restored in accordance with approved dossier. Reservoir management units regularly check dam safety, patrol the Reservoir area to avoid drowning accidents; forecast and warning to authorities and people when there are extreme weather phenomena; Regularly collect garbage at the reservoir area, for reservoirs operating in tourism business, there must be garbage bins and coordinate with garbage collection units in localities to collect daily. On the other hand, the PPMU and the reservoir management and operation units must coordinate with the local authorities to carry out the training on emergency response plans for local authorities and local people..

- For the impact of increased use of pesticides, agencies: Plant Protection Department of Phu Yen province; Plant Protection Station of districts under the subproject; and the People's Committee of 7 communes under the subproject must comply with the contents of the Pest Management Plan (IPM) of this subproject. In addition, farmers in the process of cultivation need to select good varieties, regularly check pests and diseases, use pest control measures recommended in the pest management plan (IPM) such as: (i) Cultivation measures: Soil preparation, field cleaning; rotation, intercropping; proper time; sowing and planting reasonable density; use fertilizer properly; Appropriate care measures (ii) Use of breeds: Traditional varieties and proposed varieties suitable for local conditions (iii) Biological measures: taking advantage of using natural enemies available in the field, using bioproducts …(iv) Chemical measures: use safe pesticides with natural enemies; follow economic threshold ... Follow safety guidelines on pesticide storage, transportation and use to minimize negative environmental and health impacts...

9. Preparation of a report on environmental and social impact assessment. The subproject is designed and implemented in accordance with the DRSIP project's Environmental and Social Management Framework (ESMF) approved by WB, and also ensure compliance with the current environmental regulations of the GoV. The purpose of the Environmental and Social Impact Assessment Report is to determine the importance of environmental and social issues in the decision-making process by clearly assessing the environmental and social consequences of proposed research before the implementation of subproject activities. Early identification and characterization of the positive and negative environmental and social impacts that help the community and local have an assessment of the subproject's environmental and social impacts propose conditions to be applied to mitigate or mitigate risks to those impacts. Activities in the preparation, construction and operation of the subproject are analyzed, evaluated and given solutions to prevent and minimize the level of impacts on the environment and living of the residents direction. Results of screening of 8/8 reservoirs all meet the criteria of the project and subproject is classified as category B in terms of environment assessment. The subproject triggers 04 safeguards policies, including: OP/BP 4.01 on environmental assessment, OP 4.09 on pest management, OP/BP 4.37 on safety of dams and OP/BP 4.12 on involuntary resettlement.

10. Institutional Arrangements: The Ministry of Agriculture and Rural Development (MARD) is responsible for implementing and managing the entire project. Provinces that perform repairs to dams in Component 1 and MARD will coordinate activities with the Ministry of Industry and Trade and the Ministry of Natural Resources and Environment in Component 2. Central Management Board (CPMU) under MARD is responsible for coordination and overall monitoring of the project. The implementation of repairs and preparations for the dam safety plan, including protection and entrustment, is focused on provincial authorities. Provincial People's Committee is the chair of the provincial level. The Provincial Project Management Unit (PPMU) is responsible for managing and monitoring the works with support from CPMU. Management Unit of Dam rehabilitation and Safety Improvement (WB8), Phu Yen province (hereinafter referred to as PMU) responsible for implementing and monitoring implementation ESIA. The PMU ensures that documents and contracts for valid bidding include environmental provisions for contractors to comply with. The contractor will carry out construction activities and comply with the environmental agreements agreed in the contract. In particular, the contractor will prepare an Environmental and Social Management Plan for the PMU to review and approve before starting construction. PMU and consultants will closely monitor compliance with contractor's agreed mitigation measures. In addition, the contractor's compliance will be closely monitored by Department of Natural Resources and Environment of Phu Yen province, local authorities and people.

11. Capacity building: During the implementation process, PPMU receives support from CPMU on the World Bank's environmental safety policy. The PPMU's safety policy staff has been trained by CPMU in coordination with the World Bank experts to guide the project's environmental safety issues and World Bank's safety policies. related to the project implementation included: OP 4.01 (Environmental Assessment), IFC's General Guide to Environment, Health and Safety (EHS), OP 4.04 (Natural Habitats), OP 4.10 (Indigenous peoples) and OP 4.12 (involuntary resettlement)…

12. During the implementation of the subproject, training and training on environmental safety policies for Construction Supervision Consultant (CSC) and EHS staff of the contractor are carried out regularly to update the relevant information. For PPMU, during the implementation of the subproject, the subproject will receive regular support from CPMU's independent consultancy and technical assistance on the management of dam safety risk issues, monitoring the implementation of the ESMP.

13. Public consultation: The subproject has applied different methods and techniques to conduct public consultations, consultations with people affected and local NGOs by the subproject, including a) community meetings, b) household survey, c) focus group discussion, field investigation and interviewing people providing key information. The use of these methods and techniques to enhance the reliability and effectiveness of feedback from the subproject stakeholders, Especially the local people are affected and make sure that (i) Affected people receive full information about the subproject; and (ii) All affected people are involved in the process of freedom consultation, advance notice and provide complete information during the preparation and implementation process. In September 2018, the sub-project management board organized a total of 7 community consultation meetings in the sub-project communes. And there have been official documents sent to the People's Committees of 7 communes under the subproject to community consultation on environmental and social protection issues during the subproject implementation process. Participants in community consultation sessions are representatives of local units and organizations such as: representative offices of People's Committees, in charge of neighborhoods, veterans' associations, women's union, youth union, the eldly group ... and representatives of affected households.

14. Cost estimation for ESMP implementation: ESMP implementation cost estimate includes costs for ESMP monitoring, mitigation measure implementation and capacity building. Mitigation measure implementation cost shall be included in the construction cost. The following table presents cost estimates for monitoring and capacity building.

Table 2: Cost estimate for ESMP implementation

|No. |Cost item |Amount (VND) |No. |

|1 |Costs for environmental monitoring |VND |685,115,631.2 |

|2 |Cost of capacity building training |VND |102,000,000 |

|3 |Costs for environmental treatment works |VND |226,000,000 |

|4 |Cost for IPM program |VND |82,250,000 |

|5 |Contingency (10%) |VND |109,536,563.12 |

|6 |Total |VND |1,204,902,194.32 |

Grievance Redress Mechanism (GRM): Complaints related to the subproject will be resolved by negotiating to get an agreement with the people. Complaints will be negotiated by the parties at all three stages (People's Committee at commune, district and provincial levels) before submitting to the court in accordance with the 2011 Complaint Law. PPMU will pay all administrative and legal costs related to the receipt of the complaint because this payment cost is included in the subproject budget.

15. Information dissemination: In compliance with policy of OP 4.01 and policies of World Bank on access to information: from the stage of preparing the subproject, relevant information has been disseminated to community through mass media. PPMU disseminated information and directly consulted community in September 2018 and sent consultation information to local organizations. The draft of ESIA in Vietnamese was sent to CPCs to disseminate information and consult in October 2019. The final version is expected to be disclosure in August 2019 through the website of CPO and website of the Bank in English before appraisal of the subproject.

16. Conclusion: Subproject: dam rehabilitation and safety improvement (WB8) Phu Yen province may have negative impacts in the subproject phases, but due to the small scale of construction items, impacts will occur in a short time, The scope in the area is small and insignificant, so the sub-project has proposed feasible mitigation measures, suitable to the natural, socio-economic conditions and the conditions of subproject management and construction at localities.

17. The Environmental and Social Monitoring and Management Plan is set up to monitor impacts, to help stakeholders and local authorities to regularly update the implementation process of subproject items. The monitoring system is prepared and approved by the WB will apply in the implementation of subproject, construction supervision consultants regularly check and prepare monthly reports to submit PPMU.

CHAPTER I: PROJECT INTRODUCTION

18. The Government of Vietnam received a credit from International Development Agency (IDA)/ World Bank (WB), via Loan Agreement No.5749-VN signed on 8 April 2016 for financing Dam Rehabilitation and Safety Improvement Project. The project is implemented from 8 July 2016 until 30 June 2022.

19. The WB funded Dam Rehabilitation and Safety Improvement Project (DRSIP/WB8) was endorsed by the Prime Minister in the project list “dam rehabilitation and safety improvement” in Decision No.1858/QD-TTg dated 2 November 2015 and the Project Feasibility Study Report was approved by Minister of Agriculture and Rural Development in Decision No. 4638/QD-NN-HDQT dated 9 November 2015.

20. The project has 03 components and total investment cost of USD 443 million, including USD 415 million of ODA loan from WB and USD 28 million of counterpart fund. The funding allocations to Component 1, 2 and 3 are USD 412 million, USD 20 million and USD 11 million respectively.

- Component 1: Dam safety rehabilitation, budget: USD 412 million.

- Component 2: Dam safety management and planning, budget: USD 20 million.

- Component 3: Project management support, budget: USD 11 million.

21. The project is implemented in three regions: i) Northern region covering the whole Red River Delta; ii) Central Region covering Central Northern and Middle areas and Central Southern coastal areas; and iii) Central Highlands area. These are regions with a large number of dams which were built a long time ago, have rarely received investments for big repair or rehabilitation while being vulnerable to natural disasters and subject to dam safety incidents.

22. The project shall assist to restore structure of the existing irrigation dams, most of which were built in the 1980s and 1990s. About 90% of the dams proposed to be rehabilitated are earth and small ones with height lower than 15m and design capacity of smaller than 3 million cubic meters (MCM). The proposed project will not support to change the structure or expand the dam for safety securing. Rehabilitation shall be limited to restoring structure of main and auxiliary dams, stabilizing dam slopes with concrete slabs or stone paving, strengthening and expanding the existing spillways to increase discharge capacity, renewing the existing intakes, replacing equipment and power system of the outlet/discharges and controlled spillway, uniting for leakage control and current access road improvement.

1. Approach and method of implementation

23. The Environmental and Social Impact Assessment (ESIA) was implemented in accordance with World Bank safeguard policies and in accordance with the Environmental and Social Management Framework approved by the World Bank. The ESIA process have been carried out in accordance with the initial screening process to classify the magnitude of the subproject's environmental and social considerations, impact assessments, propose mitigation measures and establish implementation plan. And the consultation with stakeholders and information disclosure were also mainstreamed in this process. In addition, ESIA is also implemented in accordance with the guidelines of relevant safeguard policies of the World Bank and regulations of the Government of Vietnam. The purpose of implementing ESIA is to determine the scope, extent and importance of the environmental and social issue of the implementation of the project, being suitable with the nature, activities and characteristics of the subproject area to propose management plan and suitable implementation institution to propose the positive effects and control negative impacts as well as risks from the subproject.

1. Methods of social impact assessment

24. Social assessment (SA), which is implemented in parallel with environmental assessment of the sub-project, has two objectives: First, to review potential and negative impacts of sub-projects on the basis of sub-project implementation plans, and second, to seek potential negative impacts from designing solutions and proposing community development activities that are relevant to the development objectives of the sub-project. Identification of negative impacts, and consultations with localities, Government agencies, project stakeholders, etc. will be undertaken to ensure that affected people are compensated and supported in a satisfactory and timely manner so that at least their socio-economic activities are recovered to a level equivalent to that before the project implementation and, in the long term, their livelihoods will not deteriorate, as a result of the sub-projects.

25. A part of the social assessment is ethnic minorities (EM) living in the sub-project area - they are assessed and confirmed their presence in the sub-project area through the screening of ethnic minorities (according to OP 4.10 of the Bank), the people will be informed prior to consultations in an appropriate manner to determine the support to the community when implementing the sub-project. Ethnic minority screening is implemented in accordance with the World Bank's OP 4.10 guidelines, and is conducted within the scope and area of social assessments corresponding to the scope of the environmental assessment (OP 4.01).

26. A Gender analysis is also implemented as part of the SA to describe gender characteristics in the sub-project area, enabling the integration of gender issues into promoting gender equality and further enhancing the effectiveness of developing the sub-projects in particular, and the whole project in general. Depending on the size of the Project's potential impacts, which have been identified, and the project development objectives, a gender action plan and a monitoring plan for gender action plan have been prepared.

27. To ensure that all potential impacts can be identified during project preparation, SAs are conducted through consultations with various sub-projects stakeholders. An important part of concern is households, who are potentially affected by the Project (both positively and negatively). The techniques used to make an SA include (i) reviewing secondary data, (ii) field observations; (iii) focus group discussions/ community meetings, (iv) in-depth interviews, and (v) household surveys.

2. Environment impact assessment method

28. During the research, survey and preparation of ESIA report, the consultant team used a combination of the following research methods.

1) Rapid Assessment Method

29. The Rapid Assessment Method was issued by the World Health Organization (WHO) in 1993. The rapid assessment method is based on the nature of materials, technology, the rules of natural processes and experience to determine the pollutant load.

30. In Vietnam, this method has been introduced and applied in many ESIA studies, which performs relatively accurately the calculation of pollutant load under limited conditions of instrumentation and analysis. In this report, the pollutant load coefficients are taken from the WB's Environmental Assessment Sourcebook (Environmental Assessment Sourcebook, World Bank, Washington D.C, August 1991).

2) Impact matrix method

31. The correlation between the impacts of the project activities on each issue and each environmental component are build and shown in the impact matrix. Based on that, impact studies will be focused on details.

3) Comparative method

32. The comparative method is used to evaluate the environmental quality, effluent discharge quality, pollutant load, etc. on the basis of comparison with relevant environmental regulations and standards, regulations specified by MONRE and MOH, as well as related research and experiment topics.

4) Description of environmental system

33. Project components that affect the environment are identified. And waste streams and related environmental issues are also fully identified for detailed assessment.

5) Listing method

34. This method has been used extensively (since the National Environmental Protection Agency - NEPA has been established in some countries) and yielded positive results because of its many advantages, such as clear approach, acute system during system analysis and evaluation. There are two main types of listing: one type is a listing table describing environmental components to be studied and information on measurement, prediction and evaluation, and another type is a simple listing table consisting of environmental components to be studied that are potentially impacted.

6) System analysis method

35. This method is applied quite extensively in environment sector. The advantage of this approach is the comprehensive assessment of impacts, which is very useful in identifying impacts and sources of wastes. This method is applied on the basis of considering sources of wastes, sources of impacts, affected objects, environmental components, etc. as elements in a system that are closely related to each other. From there, the impacts will be identified, analyzed and evaluated.

7) Community consultation method

36. This method is used during interviews with local leaders and people to collect necessary information for the Project's ESIA work and present benefits and possible negative impacts of the Project to the environment and people's life. Based on that, feedback on the project and local people's wishes will be aggregated.

37. In addition, local officials and local people will be exchanged and interviewed about socio-economic development situation, cultivation customs and environmental sanitation.

8) Methods of reference, collecting and analyzing information and data

38. This method aims at identifying and assessing natural and socio-economic conditions in the project area through the data and information collected from different sources such as statistical yearbooks, reports on socio-economic situation of the area, current status of the environment and relevant research works.

9) Field survey method

39. Field survey is required when carrying out the assessment of social and environmental impacts to determine the current status of the project area, related objects, and surveys to select locations for collecting samples, survey of water supply, drainage, electricity supply, etc.

40. The consulting firm has carried out topographical and geological surveys and collected hydro-meteorological data for design in accordance with the current standards of Vietnam. These survey results are used to assess the natural condition of the sub-project area.

10) Expert panel method

41. This method is carried out based on the knowledge and experience of environmental science of environmental impact assessment experts from the consulting firm and other scientific research agencies.

11) Sampling and analysis method in the laboratory

42. Sampling and analyzing environmental components (soil, water, air) are indispensable in identifying and assessing the quality of the background environment in the sub-project area.

43. After the field survey, the sampling and analysis program will be developed with the following main contents: sampling locations, measurement and analysis parameters, necessary equipment and tools, implementation time, sample preservation plan, analysis plan, etc.

44. For Phu Yen sub-project, the consultant coordinated with the Environmental Monitoring Agency to monitor, collect and analyze samples of air, water and soil in the area of seven reservoirs to evaluate the quality of environment components. Collecting, analyzing and preserving samples are carried out in accordance with current Vietnamese standards.

2. Implementation arrangement of ESIA report

a. Management of the subproject

- Management unit of dam rehabilitation and safety improvement Phu Yen province;

- Represent: Mr.Cao Dinh Huy – Position: Director

- Address: No. 112 Le Trung Kien, Ward 1, Tuy Hoa City, Phu Yen Province

- Phone: 0257.3843921 - Fax: 0257.3818255

b. Consultancy unit establishing report ESIA

- Thang Long infrastructure technology construction consultant joint stock company.

- Represent: Mr. Tran Trung Kien - Position: Director.

- Address: No 72/1/4, nest 4, Giap Nhat, Nhan Chinh ward, Thanh Xuan, Ha Noi.

- Phone: 024.3575 6806 - Fax: 024.3575.6806

c. Coordinating unit to implement environmental monitoring:

- Thai Duong environmental treatment and monitoring joint stock company

- Address: No. 24, Lane 18, Phan Van Tri Street, Quoc Tu Giam Ward, Dong Da District, Hanoi City

- Phone: 024 3573 7766 Fax: 024 3577 3403

- Certificate of Eligibility for Environmental Monitoring Service No.: VIMCERTS 163 issued in accordance with Decision No. 194 / QD-BTNMT dated 13/5/2016 of the Minister of Natural Resources and Environment on the certificate of eligibility event of environmental monitoring service..

d. List of participants in the preparation of ESIA reports

- Participants in the preparation of ESIA reports include: managers, specialized staff of the subproject owner and consulting unit included:

Table 3: List of persons participating in implementation

|No. |Full name |Degree |Position |

|1 |Vu Kieu Thu |Master |Team leader / Environmental specialist |

|2 |Le Thi Nhan |Master |Environmental Specialist No.01 |

|3 |Nguyen Hoài Nam |Doctor |Environmental Specialist No.02 |

|4 |Duong Thi Phuong Thuy |Master |Ecology specialist |

|5 |Nguyen Ngoc Hop |Bachelor |Support staff |

|6 |Duong Thi Van Huong |Bachelor |Support staff |

|7 |Truong Xuan Truong |Master |Vice-team - Social expert |

|8 |Quach Thi Xuan |Doctor |Expert on community development and policy institutions |

|9 |Phi Thi Hanh |Bachelor |Support staff |

CHAPTER II: DESCRIPTION OF SUBPROJECT

1.

45. Subproject: dam rehabilitation and safety improvement (wb8) Phu Yen province under the project of dam rehabilitation and safety improvement, WB8 is financed by the World Bank through the Credit Agreement No. 5749-VN dated on 08th April, 2016 with the subproject implementation duration from 2017 to 2022. Based on Decision No. 4638 / BNN-HTQT dated 09th November 2015 by Ministry of Agriculture and Rural Development, the Dam rehabilitation and Safety improvement subproject in Phu Yen province is implemented in 07 communes under 6 districts: Tuy An, Dong Xuan, Đong Hoa, Song Hinh, Tay Hoa, Son Hoa.

1. Objective of the subproject

a. Objective of the project:

46. Support to implementation of program to ensure safety of water reservoirs through rehabilitation and upgrading of prioritized dams, strengthening management capacity and safe operation of dam to protect population and economic - social infrastructure in downstream area.

b. Specific objectives:

- Ensuring safety for reservoirs of Dong Tron, Phu Xuan, Dong Khon, Ea Din1, Gieng Tien, Hoc Ram, Hon Dinh and Hoa Thuan;

- Ensuring safety and serving production and life for people in the downstream area, including communes of An Nghiep, Xuan Phuoc, Hoa Xuan Tay, Ea Bar, Son Ha, Hoa Tan Tay, Son Dinh and residents of the surrounding areas are affected;

- Ensuring proper implementation of the Ordinance on protection of irrigation works;

- Solidifying the dam surface, the road surface to the dam, installing monitoring and supervision equipment to facilitate the exploitation, management and promotion of the efficiency of the reservoir;

- Improving environmental landscape, creating infrastructure for economic development in the subproject area.

2. Location of subproject implementation

47. Subproject: dam rehabilitation and safety improvement (WB8) Phu Yen province consist of 08 works at the following locations:

Table 4: Geographic location of reservoir under the subproject

|No. |Name of |Geographical location |

| |reservoirs | |

| | |Commune |District |Coordinates |

|1 |Dong Tron |An Nghiep |Tuy An |Main dam route with coordinates: 13°16'24.84" N and 109° |

| | | | |9'48.32" E. |

|2 |Phu Xuan |Xuan Phuoc |Dong Xuan |Main dam route with coordinates: 13°17'18.63" N and 109° |

| | | | |2'16.13" E. |

|3 |Dong Khon |Hoa Xuan Tay |Dong Hoa |Main dam route with coordinates: 12°55'29.52" N and |

| | | | |109°19'46.14" E. |

|4 |EaDin 1 |Ea Bar |Song Hinh |Main dam route with coordinates: 12°56'24.76" N and |

| | | | |108°50'13.93" E. |

|5 |Gieng Tien |Sơn Ha |Sơn Hoa |Main dam route with coordinates: 13° 2'58.11" N and 109° |

| | | | |1'16.05" E. |

|6 |Hoc Ram |Hoa Tan Tay |Tay Hoa |Main dam route with coordinates: 12°56'18.26" N and |

| | | | |109°16'53.98" E. |

|7 |Hon Dinh |Hoa Xuan Tay |Dong Hoa |Main dam route with coordinates: 12°55'15.42" N and |

| | | | |109°20'30.10” E. |

|8 |Hoa Thuan |Son Dinh |Son Hoa |Main dam route with coordinates: 13°12'15.04" N and 109° |

| | | | |2'53.20" E. |

Figure 1: Locations of subproject reservoirs

[pic]

3. Status of works and construction solutions

48. Some of the main specifications of the construction under the subproject are summarized in the following table.

Table 5: Summary of some specifications of reservoirs

|No. |Name of |Commune |Basin area |Capacity (106 |Length of soil |Height of dam |

| |reservoirs | |(km2) |m3) |dam (m) |(m) |

|1 |Dong Tron |An Nghiep |69.5 |19.55 |270 |29 |

|2 |Phu Xuan |Xuan Phuoc |126 |11.2 |516 |23.8 |

|3 |Dong Khon |Hoa Xuan Tay |7.51 |2.72 |303.86 |16.2 |

|4 |EaDin 1 |Ea Bar |4.5 |1.05 |147 |13 |

|5 |Hoc Ram |Hoa Tan Tay |6.81 |2.91 |256 |17.8 |

|6 |Hon Dinh |Hoa Xuan Tay |6 |0.71 |375 |4.7 |

|7 |Gieng Tien |Son Ha |3 |0.55 |317 |7.6 |

|8 |Hoa Thuan |Son Dinh |2.06 |0.47 |200 |9 |

49. Information on the current status of reservoirs and construction items of the subproject is presented in the following table:

50. Table 6: Summary of current information of reservoirs and construction works of the Subproject

|Location |Current status |Construction works |Pictures |

|Dong Khon reservoir |Main dam |Main dam |[pic] |

| |The dam surface is soil, has not been reinforced, so it |Seepage treatment for dams and background by inclined wall, tray foot.|Status of Main dam, Dong Khon reservoir |

| |often erodes; | |[pic] |

| |There are 12 termite nest on the dam body (01 upstream |Upstream slope: Reinforced with on-site M200 pour concrete slabs, |[pic] |

| |and 11 downstream); |dimension of (2x2)m, 12cm thickness with drainage holes, underneath |Overflow threshold, spillway and energy consumption tank Dong Khon |

| |The downstream slope has appeared seeping through the |the cement bag lining prevents loss of cement mortar water, followed |reservoir |

| |soil dam causing muddy, erosion slope, unsafe for works; |by a layer macadam of 10cm thickness, bottom lined geotextile layer. |[pic] |

| |The dry masonry layer is used for to reinforce the |Downstream slope: anti-erosion by growing grass, grass plots (5x5m) |Status of intake, Dong Khon reservoir |

| |upstream slope, has been peeled, concave convex and |with drainage ditches, Slope coefficient m = 2.75. Embankment at the |[pic] |

| |landslide; |slope of the dam foot creating banquette at elevation 15.0m, wide |Status of Management road, Dong Khon reservoir |

| |The grass protecting downstream slope has been damaged |B=15.0m. Downstream drainage by the downstream slope sand filter, | |

| |and drainage ditch on the slope is not existing; |Drainage in downstream area by sand filter combining with dry masonry,| |

| |Downstream drainage pipes have been damaged, eroded, |elevation of drainage in downstream +14,00m + 14.00m, embankment | |

| |filled with sand and sediments; |downstream slope by stone do not use mortar at the downstream of the | |

| |There is no monitoring device at the dam body. |dam at + 10.30m elevation. | |

| |Spillway: |Dam crest: Concrete M200, 2x4cm stone with thickness of 20cm, Curb | |

| |Through actual survey, the spillway still works normally.|side downstream with concrete M200, upstream is a wave breakwater made| |

| |Therefore, it is not necessary to repair |of concrete M200, high 0.75m, thickness of 0.5m. | |

| |Intake: |Spillway | |

| |Bearing intake appeared vertical seepage phenomenon |On the basis status of spillway and calculation of hydrology and | |

| |from upstream to downstream; |structure of spillway, it ensures the stability. Therefore, the | |

| |The operation mechanics of upstream flat valves has been |proposal keeps status of the old spillway. | |

| |badly damaged, Operation is difficult and not watertight,|Intake | |

| |there is no van house. |Prolonged the intake pipe with reinforced concrete M300 toward | |

| |Management road: |downstream, Combined energy dissipitation’s tank beyond the intake. | |

| |Management road to works length L = 2.300m by soil, often|Build houses to cover the intake tower valves and build railing of the| |

| |muddy, eroded, very difficult to travel in the rainy |bridge connected to house to cover the intake tower valves . | |

| |season, making it difficult to manage and operate the |Management road: | |

| |project |Construction management road and operation of the works, serial from | |

| |House under management |the end of the existing concrete road to the dam foot of the Dong Khon| |

| |There are currently no house under management |reservoir. | |

| | |Total length of road L = 2,241.60m. | |

| | |Width of road surface B = 4m including concrete 3m wide and 02 road | |

| | |curb is made of soil each side 0.5m. The structure of M250 cement | |

| | |concrete road is 18cm thickness, plastic tarpaulin lining below. The | |

| | |concrete road surface is divided into 5m long sections, with elastic | |

| | |slot. | |

| | |House under management: | |

| | |Combining the construction of intake operating space to do House under| |

| | |management | |

|Dong Tron reservoir |Main dam |Main dam |[pic] |

| |The dam surface is made of concrete, not damaged; |Seepage treatment of dams and background by drilling grouting. |Status of Main dam, Dong Tron reservoir |

| |Soil dam at the left shoulder position of the spillway |Downstream slope reinforced erosion by planting grass under the dam |[pic] |

| |was infiltrated, causing water to accumulate in the |body, drainage ditch (5x5) m, Slope coefficient m = 2.75m. Downstream |Status of Spillway, Dong Tron reservoir |

| |downstream slope. The length of the permeable section is |drainage with stone of drainage water, downstream foot combined with |[pic] |

| |about 89m; |embankment, Top elevation of stone pile is + 15.20m, elevation of |Status of intake, Dong Tron reservoir |

| |The embankment stone of the upstream slope was peeled, |embankment downstream slope is at + 16.20m. |[pic] |

| |convex and concave |Spillway |Status of Management road, Dong Tron reservoir |

| |The grass protecting downstream slope has been damaged |On the basis of the current status of the flood spillway and | |

| |and drainage ditch on the slope is not existing; |calculation and check hydraulic calculations and spill structures, | |

| |Downstream drainage pipes have been damaged, eroded, |ensure stability. Therefore, the old spillway remains the same. | |

| |filled with sand and sediments. |However, to ensure flood drainage, the frequency of P = 0.01%. Need to| |

| |Saturation monitoring equipment for dam body is no longer|build a new trouble spillway . | |

| |usable |Intake | |

| |Spillway: |On the basis of the current status of the flood spillway and | |

| |Through field survey at spillway scene is still working |calculation and check hydraulic calculations and intake structures, | |

| |normally. Therefore, there is no need to fix. |ensure stability. Therefore, keeping the old intake. | |

| |Intake: |Management road: | |

| |Through field survey at the intake still working |Management road and operation works were solidified by concrete to | |

| |normally. Therefore, there is no need to fix. |ensure quality, so the status quo will road remain the same. | |

| |Management road: | | |

| |Has been concreted and quality assurance. | | |

|Ea Din 1 reservoir |Main dam |Main dam |[pic] |

| |The dam surface is made of concrete combined with a local|Upstream slope is reinforced with concrete slabs M200 pour in place, |Status of Main dam combined Management road, Ea Din 1 reservoir |

| |road, the road is not renovated and the quality is not |the sheet is sized (2x2) m, 12cm thickness there is drainage hole, |[pic] |

| |good, so it has subsided and peeled.; |beneath the lining of cement bags is the anti-dehydration of cement |Status of Spillway, Ea Din 1 reservoir |

| |The upstream slope was not reinforced, so it eroded and |mortar, followed by a layer macadam of 10cm thickness and a layer the |[pic] |

| |not flat; |bottom is geotextile lining. |Status of Energy consumption tank , Ea Din 1 reservoir |

| |Downstream drainage pipes have been damaged, eroded, |Downstream slope erosion control by planting grasses, drainage ditches| |

| |filled with sand and sediments . |(5x5) m, Slope coefficient m= 3.5. Downstream drainage by drainage | |

| |Spillway: |ditch, drainage stones, Downstream embankment slope at elevation of + | |

| |The overflow surface of concrete (the location combined |46.50m. | |

| |with roads) has just been constructed and of good |Dam crest: According to the status quo, flush curb of downstream edge | |

| |quality; |made of reinforced concrete M200, in the upstream, the wave | |

| |In the rainy season, the flow through the spillway |breakwaters made of concrete M200 height of 1m and wall thickness of | |

| |frequently, making the spillway to manage the dam |0,3m. | |

| |operation and the local traffic are obstructed, have to |Spillway | |

| |wait for the floodwaters recede then can circulate. |Based on the current state of the spillway and calculation of | |

| |Intake: |hydraulic and structural tests, spillway guaranteed stability. | |

| |Through field survey at the intake still working |Therefore, the proposal remains the same spillway old. | |

| |normally. Therefore, there is no need to fix. |Intake | |

| |Management road: |Based on the current state of the intake and calculation of hydraulic | |

| |Has been concreted and quality assurance. |and structural tests, intake guaranteed stability. Therefore, the | |

| | |proposal remains the same intake old. | |

| | |Management road: | |

| | |The operation management road was solidified by quality concrete so it| |

| | |will remain the same. | |

| | |Bridge over spillway | |

| | |To ensure the life and property of the people in the subproject area, | |

| | |When going through the spillway of Ea Din1 reservoir in the rainy | |

| | |season, it is necessary to build a new bridge over spillway. | |

|Gieng Tien reservoir |Main dam |Main dam |[pic] |

| |The surface of the dam made is soil and has not been |Upstream slope is reinforced with concrete slabs M200 pour in place, |Status of Main dam, Gieng Tien reservoir |

| |concreted so it is often eroded; |The sheet is sized (2x2) m thick 12cm There is drainage hole, |[pic] |

| |The upstream slope was not reinforced, so it eroded and |Underneath lining cement bag prevent dehydration of cement mortar, |Status of Spillway, Gieng Tien reservoir |

| |uneven; |next is the macadam layer of 10cm thickness, the bottom is geotextile |[pic] |

| |The grass protecting downstream slope has been damaged |lining. |Status of Energy consumption tank , Gieng Tien reservoir |

| |and drainage ditch on the slope is not existing; |Downstream slope erosion control by planting grasses, drainage ditches|[pic] |

| |Downstream drainage pipes have been damaged, eroded, |(5x5) m, Slope coefficient m= 2,5. Downstream drainage with stone |Status of Canal behind the drain to get water, Gieng Tien reservoir |

| |filled with sand and sediments; |embankments and roofs of downstream slope, Elevation downstream |[pic] |

| |The current level is lower than the flood control |embankment +38,96m. |Status of Management road, Gieng Tien reservoir |

| |calculation result for elevation spillway threshold and |Dam crest: M200 concrete, stone 2x4cm thick 18cm, flush curb of | |

| |current spillway size |downstream edge made of reinforced concrete M200, in the upstream, the| |

| |Spillway: |M200 concrete breakwater wall is 0.84m high and 0.3m thick. | |

| |The channel leading to the spillway has not yet been |Spillway | |

| |reinforced, partially eroded; |Based on spillway status and inspection calculations, the proposed | |

| |Threshold spillway, spillway body, energy consumption |spillway repair technical solution is as follows: Newly rebuilding | |

| |tank made of stone, degraded, unsafe and not |spillway with concrete M200 and reinforced concrete M200. | |

| |sustainable. |Intake | |

| |Intake: |demolition of old intake, build new intake with D600mm steel pipe, | |

| |Water intake type step, open and close by the button |wrapped outside reinforced concrete M200 25cm thick. | |

| |system, No sheltered houses, There is no control bridge, |Appearance: intake is circular, pressure-flow, with valves opening and| |

| |located in the center of the reservoir, No guarantee of |closing downstream. | |

| |operation safety, the intake body of leaked is not enough|Management road: | |

| |for irrigation. |Construction management road and operation of the works, serial from | |

| |Management road: |the end of the existing concrete road to the dam foot of the Gieng | |

| |Length Management road is L = 180m mode is soil, often |Tien Reservoir dam. | |

| |muddy, erosion, It is very difficult to travel in the |Total route length L=180,0m. | |

| |rainy season, which makes it difficult to manage and |Road surface width B=4m including concrete reinforcement 3m and soil | |

| |operate the subproject. |margins 02 sides on each side 0.5m. The structure of M250 cement | |

| | |concrete road bed is 18cm thick on plastic tarpaulin lining. The | |

| | |concrete pavement is divided into 5m-long sections with elastic joints| |

| | |in the middle of the sections. | |

|Hoa Thuan reservoir |Main dam |Main dam |[pic] |

| |The wave retaining wall made of stucco stone has been |Upstream slope is reinforced with concrete slabs M200 pour in place, |Status of Main dam, Hoa Thuan reservoir |

| |broken and peeled off and needs to be repaired; |The sheet is sized (2x2) m thick 12cm There is drainage hole, |[pic] |

| |The anhydrous stone layer reinforcing the upstream slope |Underneath lining cement bag prevent dehydration of cement mortar, |Status of Spillway, Hoa Thuan reservoir |

| |has been peeled, sunken, and not flat; |next is the macadam layer of 10cm thickness, the bottom is geotextile |[pic] |

| |The grass protecting downstream slope has been damaged |lining. |Status of Management road, Hoa Thuan reservoir |

| |and drainage ditch on the slope is not existing; |Downstream slope erosion control by planting grasses, drainage ditches| |

| |Downstream drainage pipes have been damaged, eroded, |(5x5) m, Slope coefficient m= 2,5. Downstream drainage with stone | |

| |filled with sand and sediments. |embankments and roofs of downstream slope, Elevation downstream | |

| |Spillway: |embankment +38,96m | |

| |Spillway threshold, spillway body, energy consumption |Spillway | |

| |tank made of reinforced concrete, The present is good. |Based on spillway status and inspection calculations, the proposed | |

| |But in terms of rain and flood, currently there is no |spillway repair technical solution is as follows: Newly rebuilding | |

| |bridge to cross spillway, so the problem of traveling and|spillway with concrete M200 and reinforced concrete M200. | |

| |rescue is facing many difficulties.. |Intake | |

| |Intake: |Demolition of old intake, New pipeline construction with D300mm steel | |

| |The intake pipe drain is leaking dehydration, The |pipe wrapped outside reinforced concrete M200 25cm thick. | |

| |downstream taper valve has been damaged and cannot be |Appearance: intake is circular, pressure-flow, with valves opening and| |

| |watertight, Valve house has been damaged. |closing downstream | |

| |Management road: |Management road: | |

| |Management road have length L = 694.73m mode of soil, |Construction management road and operation of the works, serial from | |

| |often muddy, erosion, difficult to walk in the rainy |the end of the existing concrete road to the dam foot of the Hoa Thuan| |

| |season makes the operation management works very |Reservoir dam. | |

| |difficult and obstacles. |Total length of the route L=694.73m. | |

| | |Road surface width B=4m including concrete reinforcement 3m and soil | |

| | |margins 02 on each side 5m. Structural concrete pavement M250 thick | |

| | |18cm above the plastic tarpaulin lining. The concrete pavement is | |

| | |divided into 5m-long sections with elastic joints in the middle of the| |

| | |sections. | |

|Hoc Ram reservoir |Main dam |Main dam |[pic] |

| |The surface of the dam made is soil and has not been |Upstream slope is reinforced with concrete slabs M200 pour in place, |Status of Main dam, Hoc Ram reservoir |

| |concreted so it is often eroded; |The sheet is sized (2x2) m thick 12cm There is drainage hole, |[pic] |

| |The stone breakwater, has been damaged, peeling, need to |Underneath lining cement bag prevent dehydration of cement mortar, |Status of Spillway, Hoc Ram reservoir |

| |be reinforced and repaired; |next is the macadam layer of 10cm thickness, the bottom is geotextile |[pic] |

| |The anhydrous stone layer reinforcing the upstream slope |lining. |Status of intake, Hoc Ram reservoir |

| |has been peeled, sunken, and not flat; |Downstream slope erosion control by planting grasses, drainage ditches|[pic] |

| |The grass protecting downstream slope has been damaged |(5x5) m, Slope coefficient m= 2.75. Embankment at the slope of the |Status of Management road, Hoc Ram reservoir |

| |and drainage ditch on the slope is not existing; |dam foot creating banquette at elevation +16.60m, wide B=5,0m. | |

| |Downstream drainage pipes have been damaged, eroded, |Downstream drainage by the downstream slope sand filter, Drainage in | |

| |filled with sand and sediments. |downstream area by sand filter combining with dry masonry, elevation | |

| |Spillway: |of drainage in downstream + 14.60m, embankment downstream slope by | |

| |Through field survey at spillway scene is still working |stone do not use mortar at the downstream of the dam at + 9.50m | |

| |normally. Therefore, there is no need to fix. |elevation | |

| |Intake: |Dam crest: Concrete M200, 2x4cm stone with thickness of 20cm, Curb | |

| |The operation mechanics of upstream flat valves has been|side downstream with concrete M200, upstream is a wave breakwater made| |

| |badly damaged, Operation is difficult and not watertight,|of concrete M200, high 0.75m, thickness of 0.5m. | |

| |there is no van house. |Spillway | |

| |Management road: |On the basis of the spillway status and calculation of hydraulic and | |

| |Management road from Dam to spillway of length 160m, made|structure , ensure stability. Therefore, the proposal keeps status of | |

| |is soil, about 1.0m wide, along the ridge, very difficult|the old spillway. | |

| |to go. |Intake | |

| |House under management; |Prolonged the intake pipe with reinforced concrete M300 toward | |

| |Not available House under management |downstream, Combined energy dissipitation’s tank beyond the intake. | |

| | |Build houses to cover the intake tower valves and build railing of the| |

| | |bridge connected to house to cover the intake tower valves . | |

| | |Management road: | |

| | |Management road serial from point Dam crest the left shoulder beats to| |

| | |the wall on the right hand side of the Spillway threshold. | |

| | |Total route length road L= 159,94m. | |

| | |Width of road surface B = 4m including concrete 3m wide and 02 road | |

| | |curb is made of soil each side 0.5m. The structure of M250 cement | |

| | |concrete road is 18cm thickness, plastic tarpaulin lining below. The | |

| | |concrete road surface is divided into 5m long sections, with elastic | |

| | |slot. | |

| | |House under management | |

| | |Combining the construction of intake operating space to do House under| |

| | |management | |

|Hon Dinh reservoir |Main dam |Main dam |[pic] |

| |The surface of the dam made is soil and has not been |Seepage treatment for dams and background by inclined wall, tray foot.|Status of Main dam, Hon Dinh reservoir |

| |concreted so it is often eroded; | |[pic] |

| |The downstream slope has appeared seeping through the |Upstream slope is reinforced with concrete slabs M200 pour in place, |Status of downstream Spillway, Hon Dinh reservoir |

| |soil dam causing muddy, erosion slope , unsafe for works;|The sheet is sized (2x2) m thick 12cm There is drainage hole, |[pic] |

| |The anhydrous stone layer reinforcing the upstream slope |Underneath lining cement bag prevent dehydration of cement mortar, |Status of Intake, Hon Dinh reservoir |

| |has been peeled, sunken, and not flat; |next is the macadam layer of 10cm thickness, the bottom is geotextile |[pic] |

| |The grass protecting downstream slope has been damaged |lining. |Status of Management road, Hon Dinh reservoir |

| |and drainage ditch on the slope is not existing; |Downstream slope erosion control by planting grasses, drainage ditches| |

| |Downstream drainage pipes have been damaged, eroded, |(5x5) m, Slope coefficient m= 2,5. Drainage in the downstream slope by| |

| |filled with sand and sediments |drainage ditch, paving stone in elevation +5,56m. | |

| |Spillway: |Dam crest: M200 concrete, stone 2x4cm thick 18cm, flush curb of | |

| |Spillway The current form is the spillway have door, |downstream edge made of reinforced concrete M200, Curb side downstream| |

| |Including 6 doors, each door is 2.0m wide, opened and |with concrete M200, upstream is a wave breakwater made of concrete | |

| |closed by vitme. |M200, high 0.54m, thickness of 0.3m. | |

| |Intake: |Spillway | |

| |There is no collapsible system and upstream flat valve |Based on spillway status and inspection calculations, the proposed | |

| |gate, have downstream taper valve But it was also broken,|spillway repair technical solution is as follows: | |

| |stuck, cannot operate, there is no van house. |Open wide 03 spillway gates; newly built 03 spillway gates, including | |

| |Management road: |entrance door, spillway threshold and energy consumption tank; | |

| |Management road go to site, have length L = 2,300m by |concrete structure and reinforced concrete M250. | |

| |soil, often muddy, eroded, very difficult to travel in |Reinforce the yard; reinforcing bottom and slope plate with concrete | |

| |the rainy season, making it difficult to manage and |M200. | |

| |operate the project. |Intake | |

| |House under management: |Demolition of old intake, build new intake with steel pipes D600mm | |

| |Not available House under management |wrapped outside reinforced concrete M200 25cm thick. | |

| | |Appearance: intake is circular, pressure-flow, with valves opening and| |

| | |closing downstream | |

| | |Management road: | |

| | |Construction management road and operation of the works, serial from | |

| | |the end of the existing concrete road to the dam foot of the Hon Dinh | |

| | |Reservoir dam. | |

| | |Total route length road L=2.222,96m. On the route, there are 5 new | |

| | |construction drainage culverts. | |

| | |Width of road surface B = 4m including concrete 3m wide and 02 road | |

| | |curb is made of soil each side 0.5m. The structure of M250 cement | |

| | |concrete road is 18cm thickness, plastic tarpaulin lining below. The | |

| | |concrete road surface is divided into 5m long sections, with elastic | |

| | |slot. | |

| | |House under management | |

| | |New construction House under management | |

|Phu Xuan reservoir |Main dam |Main dam |[pic] |

| |The surface of the dam made is soil and has not been |Dam crest: concrete M200, stone 2x4cm, thick 20cm, flush curb of |Status of Main dam, Phu Xuan reservoir |

| |concreted so it is often eroded; |downstream edge made of reinforced concrete M200. |[pic] |

| |The wave retaining wall made of stucco stone has been |Downstream slope reinforced erosion by planting grass under the dam |Status of Spillway, Phu Xuan reservoir |

| |broken and peeled off and needs to be repaired; |body, drainage ditch (5x5) m, Slope coefficient m = 3m. Downstream |[pic] |

| |The anhydrous stone layer reinforcing the upstream slope |drainage with stone of drainage water, downstream foot combined with |Status of energy consumption tank, Phu Xuan reservoir |

| |has been peeled, sunken, and not flat; |embankment, Top elevation of stone pile is + 23.0m, elevation of |[pic] |

| |The grass protecting downstream slope has been damaged |embankment downstream slope is at + 24.5m |Status of the canal behind the intake to get water, Phu Xuan reservoir |

| |and drainage ditch on the slope is not existing; |Spillway |[pic] |

| |Downstream drainage pipes have been damaged, eroded, |On the basis of the current status of the flood spillway and |Status of Management road, Phu Xuan Reservoir |

| |filled with sand and sediments |calculation and check hydraulic calculations and spill structures, | |

| |Spillway: |ensure stability. Therefore, the old spillway remains the same. | |

| |Through field survey at spillway scene is still working |However, to ensure flood drainage, the frequency of P = 0.01%. Need to| |

| |normally. Therefore, there is no need to fix. |build a new trouble spillway. | |

| |Intake: |Intake | |

| |Through field survey at the intake still working |On the basis of the current status of the flood spillway and | |

| |normally. Therefore, there is no need to fix. |calculation and check hydraulic calculations and intake structures, | |

| |Management road: |ensure stability. Therefore, keeping the old intake. | |

| |Management road go to construction have length L = 1.500m|Management road: | |

| |made in soil, made is soil, about 1.0m wide, along the |Construction management road and operation of the works, serial from | |

| |ridge, very difficult to go. |the end of the existing concrete road to the dam foot of the Phu Xuan | |

| | |Reservoir dam. | |

| | |Total route length road L=1.349,22m. | |

| | |Width of road surface B = 4m including concrete 3m wide and 02 road | |

| | |curb is made of soil each side 0.5m. The structure of M250 cement | |

| | |concrete road is 18cm thickness, plastic tarpaulin lining below. The | |

| | |concrete road surface is divided into 5m long sections, with elastic | |

| | |slot. | |

4. Summary of excavation volume, construction materials and machinery

1. Summary of excavation volume

51. The volume of construction materials of 8 reservoirs of the subproject is shown in the table below:

Table 7: Total volume of excavated soil and embankment soil of the subproject

|No. |Name of the | |Volume (m3) |

| |reservoir | | |

| | |Excavated soil |Embankment soil |Total |The volume of |The volume of |Volume of |

| | | | | |excavated soil |excavated soil can |exploitation soil at|

| | | | | |removed |be utilized |mines soil |

|1 |Dong Tron |105,196.5 |66,958.01 |172,154.51 |38,238.49 |64,958.01 |2,000 |

|2 |Phu Xuan |42,394.39 |29,353.09 |71,747.48 |13,041.30 |27,353.09 |2,000 |

|3 |Dong Khon |37,839.06 |32,745.01 |70,584.07 |5,094.05 |30,745.01 |2,000 |

|4 |Ea Din 1 |5,850.51 |4,322.96 |10,173.47 |1,527.55 |2,822.96 |1,500 |

|5 |Gieng Tien |9,915.56 |8,140.00 |18,055.56 |1,775.56 |6,640.00 |1,500 |

|6 |Hoc Ram |62,002.43 |54,296.02 |116,298.45 |7,706.41 |52,296.02 |2,000 |

|7 |Hon Dinh |84,870.92 |78,096.69 |162,967.61 |6,774.23 |76,096.69 |2,000 |

|8 |Hoa Thuan |6,654.25 |5,708.88 |12,363.13 |945.37 |4,208.88 |1,500 |

Source: FS Report

2. Summary of volume of materials

52. The volume of construction materials of 8 reservoirs of the subproject is shown in the table below:

Table 8: Summary of materials volume of the subproject

|Name of the reservoir |No. |Material name |Unit |Volume |Volume converted |Note |

|Dong Tron |1 |Cement |Ton |1,869.31 |  |  |

| |2 |Sand |m3 |3,803.76 |5,325.264 |1.40 T/ m3 |

| |3 |Rock |m3 |5,643.9 |8,465.85 |1.5 T/ m3 |

| |4 |Iron and Steel |Ton |206.83 |  |  |

|Phu Xuan |1 |Cement |Ton |410.38 |  |  |

| |2 |Sand |m3 |1,317.14 |1,843.996 |1.40 T/ m3 |

| |3 |Rock |m3 |4,901.81 |7,352.715 |1.5 T/ m3 |

| |4 |Iron and Steel |Ton |0.518 |  |  |

|Dong Khon |1 |Cement |Ton |1,006.75 |  |  |

| |2 |Sand |m3 |8,153.12 |11,414.368 |1.40 T/ m3 |

| |3 |Rock |m3 |4,515.62 |6,773.43 |1.5 T/ m3 |

| |4 |Iron and Steel |Ton |166.47 |  |  |

|Ea Din 1 |1 |Cement |Ton |332.26 |  |  |

| |2 |Sand |m3 |67.29 |94.206 |1.40 T/ m3 |

| |3 |Rock |m3 |1,241.24 |1,861.86 |1.5 T/ m3 |

| |4 |Iron and Steel |Ton |13.36 |  |  |

|Gieng Tien |1 |Brick |Bricks |1,205 |2.7715 |1 Brick ≈ 2.3 kg |

| |2 |Cement |Ton |483.62 |  |  |

| |3 |Sand |m3 |866.27 |1,212.778 |1.40 T/ m3 |

| |4 |Rock |m3 |2,113.23 |2,958.522 |1.5 T/ m3 |

| |5 |Iron and Steel |Ton |34.85 |  |  |

|Hoc Ram |1 |Cement |Ton |766.26 |  |  |

| |2 |Sand |m3 |10,250.71 |14,350.994 |1.40 T/ m3 |

| |3 |Rock |m3 |4,704.15 |6,585.81 |1.5 T/ m3 |

| |4 |Iron and Steel |Ton |15.466 |  |  |

|Hon Dinh |1 |Brick |Bricks |2,901 |6.6723 |1 Brick ≈ 2.3 kg |

| |2 |Cement |Ton |1,063.08 |  |  |

| |3 |Sand |m3 |1,885 |2639 |1.40 T/ m3 |

| |4 |Rock |m3 |3,777.13 |5665.695 |1.5 T/ m3 |

| |5 |Iron and Steel |Ton |54,66 |  |  |

|Hoa Thuan |1 |Brick |Bricks |2,461 |5.6603  |1 Brick ≈ 2.3 kg |

| |2 |Cement |Ton |379.66 |  |  |

| |3 |Sand |m3 |455.54 |637.756 |1.40 T/ m3 |

| |4 |Rock |m3 |959.94 |1,439.91 |1.5 T/ m3 |

| |5 |Iron and Steel |Ton |24.53 |  |  |

Source: FS Report

3. Mobilization of vehicles and machinery for construction

53. The number of vehicles and machinery being mobilized to serve the subproject items depends on the construction progress of different items and the construction time on site. In order to meet the construction progress and to complete the volume of works, based on the terrain of the site, the nature of work and the sources of material supply, It is expected to arrange the main equipment to perform the construction of the subproject often using equipment and machinery for construction as follows:

Table 9: list of machines and equipment for construction of subproject

|No. |Type of equipment |Quantity |Status |

|1 |Hand drill set |8 |tested |

|2 |Crane 10 ton |8 |tested |

|3 |Crane 6 ton |8 |tested |

|4 |Tired- crane 16 ton |8 |tested |

|5 |Tired- crane 6 ton |8 |tested |

|6 |crawler crane 10 ton |8 |tested |

|7 |Table vibrator 1Kw |8 |tested |

|8 |Toad beams (portable soil dress 60kg) |8 |tested |

|9 |Rod vibrator 1.5 KW |8 |tested |

|10 |Dittomat |8 |tested |

|11 |Machine cuts the MCD slot |8 |tested |

|12 |Flaxman steel cutting machine |8 |tested |

|13 |Bending machine 5.0Kw |8 |tested |

|14 |Cutting machine for cutting steel 5KW |8 |tested |

|15 |Saw machine 2.7KW |8 |tested |

|16 |Backhoe excavator 0.8m3 |8 |tested |

|17 |Wheeled roller 9 ton |8 |tested |

|18 |Welding machine 23 KW |8 |tested |

|19 |Electric welding machines 23kW |8 |tested |

|20 |Drill 4.5KW |8 |tested |

|21 |Drill YG60 |8 |tested |

|22 |Roller machine 10 ton |8 |tested |

|23 |Roller machine 8.5 ton |8 |tested |

|24 |Tired-roller 16 ton |8 |tested |

|25 |Vibrating roller machine 25 ton |8 |tested |

|26 |Internal-grinding machine 2.7KW |8 |tested |

|27 |Air compressor Diezel 1200m3/h |8 |tested |

|28 |Hammer drill VRM |8 |tested |

|29 |Construction cranes 10Ton |8 |tested |

|30 |Construction cranes 16Ton |8 |tested |

|31 |Rod vibrator 3.5KW |8 |tested |

|32 |Concrete pump 10 m3/h |8 |tested |

|33 |Concrete pump 50m3/h |8 |tested |

|34 |Grout pump 40KW |8 |tested |

|35 |brick breakers |8 |tested |

|36 |Backhoe excavator 1.25m3 |8 |tested |

|37 |Welding machine 23KW |8 |tested |

|38 |Drilling machine 4.5KW |8 |tested |

|39 |Portable stone drill f42mm |8 |tested |

|40 |Drilling jumbo fl05 |8 |tested |

|41 |Drilling jumbo f76mm |8 |tested |

|42 |Elevator hydraulic-driven |8 |tested |

|43 |Air compressor  1200m3/h |8 |tested |

|44 |Air compressor  600m3/h |8 |tested |

|45 |Generator 500KVA |8 |tested |

|46 |Bulldozer ≤110Cv |8 |tested |

|47 |Bulldozer ≤ 140Cv |8 |tested |

|48 |Drag shovel 1.25m3 |8 |tested |

|49 |Betonite Circulation Mixing Tank 750 l |8 |tested |

|50 |Planer milling machine 7KW |8 |tested |

|51 |Asphalt pave finisher 50-60m3/h |8 |tested |

|52 |Lathe 10KW |8 |tested |

|53 |Concrete mixer truck 25m3 |8 |tested |

|54 |mortar mixer 80l |8 |tested |

|55 |Bulldozer 110CV |8 |tested |

|56 |Building hoist 0,8Ton |8 |tested |

|57 |NI 030 |8 |tested |

|58 |Truck 7Ton |32 |tested |

|59 |Dump truck 7ton |24 |tested |

|60 |Dump truck 10ton |8 |tested |

|61 |Water truck 5m3 |8 |tested |

|62 |Dump truck 3,5Ton; 5Ton |16 |tested |

|63 |According to 020 |8 |tested |

|64 |Building hoist 0,8Ton |8 |tested |

4. Distance and transport routes of materials

Table 10: Distance, transport route of materials

|Name of the reservoir|Materials |Distance to the works |Transported road |

|Dong Tron |Brick, cement, sand, |Transport distance of about 4 km. From the |Highway 1A, Inter-commune roads and |

| |stone, steel |center of Tuy An district to An Nghiep commune|inter-village roads, management road of |

| | | |Dong Tron reservoir |

|Phu Xuan |Brick, cement, sand, |Transport distance of about 12 km. From Dong |Highway 19C, Inter-commune roads and |

| |stone, steel |Xuan district center to Xuan Phuoc commune |inter-village roads, management road of |

| | | |Phu Xuan reservoir |

|Dong Khon |Brick, cement, sand, |Transport distance of about 3 km. From the |Highway 1A, Inter-commune roads and |

| |stone, steel |center of Dong Hoa district to Hoa Xuan Tay |inter-village roads, management road of |

| | |commune |Dong Khon reservoir |

|Ea Din 1 |Brick, cement, sand, |Transport distance of about 15 km. From Song |Highway 29, Inter-commune roads and |

| |stone, steel |Hinh district center to Ea Bar commune |inter-village roads, management road of Ea|

| | | |Din1 reservoir |

|Hoc Ram |Brick, cement, sand, |Transport distance of about 3,5 km. From the |Highway 29, Inter-commune roads and |

| |stone, steel |center of Tay Hoa district to Hoa Tan Tay |inter-village roads, management road of |

| | |commune |Hoc Ram reservoir |

|Hon Dinh |Brick, cement, sand, |Transport distance of about 3 km. From the |Highway 1A, Inter-commune roads and |

| |stone, steel |center of Dong Hoa district to Hoa Xuan Tay |inter-village roads, management road of |

| | |commune |Hon Dinh reservoir |

|Gieng Tien |Brick, cement, sand, |Transport distance of about 13 km. From the |Highway 19C, Highway 25, Inter-commune |

| |stone, steel |center of Son Hoa district to Son Ha commune |roads and inter-village roads, management |

| | | |road of Gieng Tien reservoir |

|Hoa Thuan |Brick, cement, sand, |Transport distance of about 32 km. From the |QL19C, Inter-commune roads and |

| |stone, steel |center of Son Hoa district to Son Dinh commune|inter-village roads, management road of |

| | | |Hoa Thuan reservoir |

5. Auxiliary items

1. Electricity, water for construction and living

54. Due to the nature of the subproject building gravity water reservoirs, the electricity demand is negligible, mainly for lighting at night and steel formwork workshops. At present, the national power grid passes the construction areas, using electricity from the national grid near the subproject area. In addition, there are 110KVA backup generators in case of power outages.

55. Pumps are used to intake water from the reservoirs to contain in the construction tanks at site. Depending on the quality of the reservoir water, Contractors will have treatment measures by the filtering tanks to ensure the water quality for domestic use and concrete construction.

2. Demand for workers’ houses and camps

56. The demand of workers constructing each item in rush hour is about 60 persons. Almost construction locations of subproject are favorable for gathering materials as well as arranging labor camp.

Table 11: Expected number of workers in construction sites

|No. |Name of works |Quantity of workers (persons) |Quantity of environmental and social|

| | | |supervisors |

|1 |Dong Tron |60 |1 |

|2 |Phu Xuan |40 |1 |

|3 |Dong Khon |50 |1 |

|4 |Ea Din 1 |30 |1 |

|5 |Gieng Tien |30 |1 |

|6 |Hoc Ram |50 |1 |

|7 |Hon Dinh |60 |1 |

|8 |Hoa Thuan |30 |1 |

Source: FS Report

57. Most of construction sites are well located to gather materials as well as to build worker camps. However, the condition of infrastructure for electricity and water supply is limited, the number of contractor workers concentrates on the peak time of about 15-20 people mainly managers and skilled workers, simple work items that directly hire local workers about 20-30 people on a construction these workers can go home after finishing work, construction time of each item is not long so some construction are expected to rent premises or houses of local people in each area of ​​the subproject to build workers' houses, ensuring environmental hygiene and daily living conditions of workers like: toilets are equipped to meet the requirements of QCVN 01: 2011/BYT on the standard of hygienic toilet and the individual activities are carried out in the residential areas. At the material gathering yards are arranged right at the construction site and there are security guards taking turns.

3. Construction route

58. Advantages: Conditions of construction of works are relatively good, convenient transportation; At all construction sites, there is road to the reservoir, serving construction to meet the demand of material transportation during deployment in the locality. Inter-district and inter-commune roads and routes QL1A, QL25, QL29, DT543, QL19C are all reinforced, very convenient for transporting materials and ensuring traffic safety.

59. Difficulties: The roads for operation and management of the current Reservoirs are still earth roads, very muddy when rain occurs causing difficulties and dangers for transporting materials. Some main roads such as QL1A, QL25... often have high traffic, so pay attention to ensuring traffic safety. (Photos of managed routes are listed in section 2.2 of this report).

4. Landfill, soil pits

a. Volume and location of landfill dumping during construction

60. The organic soil layer is removed and transported to the landfill at the following locations: (Confirmation of disposal site location with CPC is attached in the appendix of this report):

Table 12: Volume and location of landfill, transportation routes

Source: Explanation of investment project

|No. |Name of the reservoir |Disposal volume |Expected landfill location |Transported road |

| | |(m3) | | |

|1 |Dong Tron |38,238.49 |Landfill coordinates: 13°16'35.17"N; 109° 9'41.34"E. The landfill site is managed by An |Transport distance 300m |

| | | |Nghiep Commune People's Committee. Area of ​​landfill is 16,000 m2, reserve is 50,000 m3 |Transported road: Operation management road of Dong Tron reservoir |

|2 |Phu Xuan |13,041.30 |Landfill coordinates: 13°17'36.71"N; 109° 2'11.34"E. The landfill site is managed by |Transport distance 350m |

| | | |Xuan Phuoc Commune People's Committee. Area of ​​landfill is 5,000 m2, reserve is 15,000 |Transported road: Operation management road of Phu Xuan reservoir |

| | | |m3 | |

|3 |Dong Khon |5,094.05 |Landfill coordinates: 12°55'23.89"N; 109°20'6.47"E. The landfill site is managed by Hoa |Transport distance 750m |

| | | |Xuan Tay Commune People's Committee. Area of ​​landfill is 8,000 m2, reserve is 24,000 m3 |Transported road: Transported road: Operation management road of Dong Khon |

| | | | |reservoir and inter-village roads in Hoa Xuan Tay commune |

|4 |Ea Din 1 |1,527.55 |Landfill coordinates: 12°56'27.21"N; 108°50'15.03"E. The landfill site is managed by Ea |Transport distance 100m |

| | | |Bar Commune People's Committee. Area of ​​landfill is 3,000 m2, reserve is 4,500 m3 |Transported road: Transport route in the downstream of reservoir |

|5 |Gieng Tien |1,775.56 |Landfill coordinates: 13° 2'50.95"N; 109° 1'17.08"E. The landfill site is managed by Son|Transport distance 120m |

| | | |Ha Commune People's Committee. Area of ​​landfill is 2,087 m2, reserve is 4,000 m3 |Transported road: Transport route on the right downstream of the reservoir |

|6 |Hoc Ram |7,706.41 |Landfill coordinates: 12°56'29.20"N; 109°16'42.55"E. The landfill site is managed by Hoa|Transport distance 500m |

| | | |Tan Tay Commune People's Committee. Area of ​​landfill is 5,000 m2, reserve is 15,000 m3 |Transported road: Operation management road of Hoc Ram reservoir |

|7 |Hon Dinh |6,774.23 |Landfill coordinates: 12°55'23.89"N; 109°20'6.47"E. The landfill site is managed by Xuan|Transport distance 2000m |

| | | |Phuoc Commune People's Committee. Area of ​​landfill is 8,000 m2, reserve is 24,000 m3 |Transported road: Transported road: Operation management road of Dong Khon, Hon |

| | | |(Use the same landfill with Dong Khon reservoir) |Dinh reservoir and inter-village roads in Hoa Xuan Tay commune |

|8 |Hoa Thuan |945.37 |Landfill coordinates: 13°12'14.03"N; 109° 2'44.88"E. The landfill site is managed by |Transport distance 270m |

| | | |Xuan Phuoc Commune People's Committee. Area of ​​landfill is 1,000 m2, reserve is 2,500 m3|Transported road: Operation management road of Hoa Thuan reservoir |

b. Volume and location of soil pits during construction:

During construction phase, volume of embankment soil purchased at the soil pits have been licensed and exploited by competent authorities, Specific locations of soil pits and transport routes are as follows:

Table 13: Volume and location of soil pits during construction

Source: Explanation of investment project

|No. |Name of the |Expected |Expected soil pits location |Transported road |

| |reservoir |exploitation volume |(Coordinates VN2000, meridian axis 108030 projection 30) | |

| | |(m3) | | |

|1 |Dong Tron |4,000 m3 |Coordinates of borrow pits: X(m): 1.475.019; Y(m) 580.204. Borrow pits Diem Diem, Diem Diem |Transport distance 10 km |

| | | |village, An Ninh Tay commune, Tuy An district |Transported road: DT543; Inter-commune and inter-village roads, Operation management|

| | | | |road of Dong Tron reservoir |

|2 |Phu Xuan |4,000 m3 |Coordinates of borrow pits: X(m): 1.469.623; Y(m) 561.085. Borrow pits Phu Hoi, Phu Hoi |Transport distance 4 km |

| | | |village, Xuan Phuoc commune, Tuy An district |Transported road: Operation management road of Phu Xuan reservoir, inter-village |

| | | | |roads. |

|3 |Dong Khon |4,000 m3 |Coordinates of borrow pits: X(m): 1.451.694; Y(m) 580.377. Borrow pits Nui Hon Mot, Tho Vuc |Transport distance 24 km |

| | | |village, Hoa Kien commune, Tuy Hoa City |Transported road: Operation management road of Dong Khon reservoir and inter-village|

| | | | |roads, QL1A |

|4 |Ea Din 1 |3,000 m3 |Coordinates of borrow pits: X(m): 1.438.117; Y(m) 528.205 Borrow pits Doi Hon 1, Tan Yen |Transport distance 13 km |

| | | |village, Ea Ly commune, Song Hinh district |Transported road: Operation management road of Ea Din1 reservoir and inter-village |

| | | | |roads, QL29 |

|5 |Gieng Tien |3,000 m3 |Coordinates of borrow pits: X(m): 1.443.185; Y(m) 558.738. Borrow pits Dong Lo Gach, Ngan |Transport distance 3 km |

| | | |Dien village, Son Ha commune, Son Hoa district |Transported road: Operation management road of Gieng Tien reservoir and |

| | | | |inter-village roads. |

|6 |Hoc Ram |4,000 m3 |Coordinates of borrow pits: X(m): 1.424.792; Y(m) 596.581. Borrow pits of Hoa Xuan Nam |Transport distance 26 km |

| | | |commune, Dong Hoa district |Transported road: Operation management road of Hoc Ram reservoir and inter-district,|

| | | | |inter-communal and inter-village roads, QL1A |

|7 |Hon Dinh |4,000 m3 |Coordinates of borrow pits: X(m): 1.451.694; Y(m) 580.377. Borrow pits Nui Hon Mot, Tho Vuc |Transport distance 24 km |

| | | |village, Hoa Kien commune, Tuy Hoa City |Transported road: Operation management road of Dong Khon reservoir and inter-village|

| | | | |roads of Hoa Xuan Tay commune, QL1A |

|8 |Hoa Thuan |3,000 m3 |Coordinates of borrow pits: X(m): 1.443.185; Y(m) 558.738. Borrow pits Dong Lo Gach, Ngan |Transport distance 8,3 km |

| | | |Dien village, Son Ha commune, Son Hoa district |Transported road: Operation management road of Hoa Thuan reservoir, Inter-village |

| | | | |and inter-commune roads, QL25 |

6. Pre-construction activities

61. Prior to the construction, there are some works like surveying topography, hydrology, meteorological conditions, geological drilling, land acquisition marking, UXO clearance. In the subproject scope there is no demolition of structure but there is the vegetation clearing carried out by the households that have affected trees and crops. Waste from vegetation clearing will be collected and transported to the communal dump sites by affected households.

62. Designing the Subproject to provide the options that take into account scenarios, risks of climate change on the performance of the construction items of the Subproject. The study on the climate factor change is presented in the section: the recent status of the subproject area, as a basis for selecting optimal design options. The recent impact of climate change in the region is mainly relating to the precipitation that results in floods, landslides and droughts.

7. Material transportation plan

63. Construction materials will be transported to site about 1 week before the starting of the construction. Construction materials will be transported to construction sites at certain periods of time to avoid negative impacts on agricultural activities and the daily life of local people. Workers, machines and materials are estimated in the sections above.

8. Operational and maintenance activities

64. Periodic dam safety monitoring: Once the reservoirs have been filled with water and the dams started working, the dam-owners are responsible for the dam safety monitoring. This assignment is carried out by qualified independent experts who did not participate in the investigation, survey, design, construction or operation of the dams. After the dams regularly operate, the monitoring stages are kept periodically, including the safety inspections prior and after flood seasons every year in accordance with the Government Decree No. 114/2018/ND-CP on dam safety management.

65. Upon completion of the works, the operation of the dams will be the responsibility of the dam owners and the responsibility of the PPMU will end.

66. The reservoir and valve operation procedure: A dam-owner must develop a reservoir water regulation procedure to regulate the storage and discharge of water in normal and emergency conditions of dam and reservoir to submit to authorized state management agency for approval and organize the implementation of the procedure. The dam owners must prepare and submit documents on operational procedure of valves and each work (hereafter referred to as operation of works) to the authorities for promulgation according to their competence. Other operations should be addressed pursuant to the Government's Decree No. 114/2018/ND-CP on dam safety management.

9. Dam safety plan

67. A dam safety report (DSR) will be prepared for the Subproject. The objectives of the DSR are to present, analyze and make recommendations on: a) all conditions that may affect the safety of the dams and its associated facilities; b) impacts of the dam or substructure breaking or unable to work due to harsh natural conditions, human errors or structural faults; and c) the institutional framework (at the present time and in the future) necessary to avoid or minimize adverse conditions for the safety of the dams.

68. After the completion of the review at the subproject screening stage, the CPMU of MARD should provide a DSR for each subproject which is identified during the project implementation stage and sent to the international dam safety (PoE) and the World Bank for review. The report must include findings and recommendations for any related safety issues and necessary actions to be taken. The dam safety measures should be integrated into the design, construction and operation of the reservoirs.

69. Review and analysis of the dam structure: The review and evaluation of the dams and related works will include, but is not limited to, the following:

- Review of the geological documents and material sources, with the attention to potential adverse effects that may occur by the predictable geological features. Assessment of unforeseen conditions and counter measures to address the safety and operation of the dams and the works.

- Assessment of the suitability of the types of dams and spillways, the response of the dam design. They include the proposed measures for soil treatment, excavation, load characteristics of selected substrate, seepage and pressure exertion control measures. The safety point of view for any abnormalities or omissions and measures to be taken will be paid attention to.

- Assessment of the stability, strength analysis and safety factors in normal conditions, abnormal and extreme load conditions for soil dams and concrete dams, spillway structure and drainage works, including the determination of geological impact criteria.

- Consideration of the factors of like reservoir stability, landslide formation, waves, and wave effects on dam stability;

- Consideration of the hydrological calculation method that determines the design flood of the project, reservoirs and spillway size; review of the designs of the spillways, e.g. the flow conditions and the tilling basins; assessment of the discharge capacity of the spillways corresponding to all design flood indicators that dams will not be damaged.

- Considerations for the water intake and discharge works, including hydraulic designs, emergency dewatering capacity and sedimentation process in the reservoirs.

- Assessment of the design of the spillways and out-door controls, including the selection of the number and types of outlets and valves, lifting equipment and other controlling mechanisms. Particular attention should be given to back-up systems to operate spillways which have gates and draining facilities in the event of operational and power failure.

- Review of the design of the flow diversion works, construction progress, hydrology and the risk factors associated with the flow diversion during the flow construction and filling process at the beginning stage of the reservoir water accumulation.

- Consideration of the suitability of the instrumentation, especially those instruments or markers which are required in the prediction of serious hazards or dam breakage.

- Consideration of the operation and maintenance procedures and the emergency response plan of the dam owners, including the assessment of sub-project operation and maintenance factors relating to dam safety and operators’ capacity assessment to be able to perform the maintenance and inspections of the safety of the dams.

70. Review and assessment of dam safety risks: In addition to ensuring the dam's structure safety, the project will assess potential risks of the dams to the population and the environment in downstream, including the related works. Dam breakage may not occur but if it happens consequences will be serious. Regarding this content, during the project preparation, as part of the DSR or environmental and social management plan, the sub-Project Owners should conduct assessing potential risks to the downstream population. For large dams with high-risks, it needs to acquire comprehensive data during the preparation process, including topographic survey and downstream land use to simulate a downstream dam and flood breakdown under different conditions/scenarios to serve the preparation of the emergency response plans. Collecting data from upstream dams and/or watershed activities may also be necessary for some dams. Planning and implementing capacity building programs for the subprojects with pilot activities to promote active participation of local communities should be considered. Communities around the dams can participate in day-to-day monitoring to protect the dams from external destructors and they can join in simple maintenance tasks. A community participatory model in dam safety activities should be considered. Sedimentation and contamination of upstream water may be a serious problem for some river basins. The dam owners must commit to allocate funds for appropriate dam operation and management and to periodically survey dam safety.

10. Subproject implementation schedule

71. Pursuant to the Plan reported by the PMU to the Provincial People's Committee from 2019-2022.

❖ 1st year:

- Investment preparation work.

- Compensation and site clearance

- Organize bidding for construction installation, and carry out construction of key works

❖ 2st year:

- Continue construction and complete key works.

- Organizing bidding for construction of living water supply works.

- Construction of living water supply works.

❖ 3st year:

- Executing and completing key works

- Execution completed the item of living water supply works

- Complete, hand over the subproject and exploit use.

Table14: Progress implementation of subproject

|Work |1st year |2st year |3st year |

| |1 |2 |

| | | |

|1 |Expenses for compensation and land clearance |2,000,000,000 |

|2 |Construction costs |89,469,226,000 |

|3 |Cost of subproject management |1,642,233,000 |

|4 |Cost of construction investment consultancy |10,855,849,000 |

|5 |Other costs |5,767,057,000 |

|6 |Preventive |10,973,437,000 |

| |Total |120,707,802,000 |

Source: Demonstration of the investment project

CHAPTER 3: LEGAL, ADMINISTRATIVE AND POLICY FRAMEWORK

72. Safeguard Policy of the World Bank, legal documents on Vietnam's environmental and social protection applied in the subproject.

1.

1. Government Regulations

a. Laws

• Law on Environmental Protection No.55/2014/QH13 promulgated by the National Assembly of Vietnam on 23/06/2014 and effective since July 2015. This Law provides the regulations on environmental protection activities, policies, measures, resources, rights, obligations and responsibilities of agencies, organizations, households and individuals in the environmental protection.

• Land Law No.45/2013/QH13 approved by the National Assembly of Vietnam on November 29, 2013, regulating the land ownership regime, powers and responsibilities of the State which is the representative of the land ownership of the whole people and unifies the management and use regime of land, rights and obligations of land-users in respect of land within the territory of the Socialist Republic of Vietnam.

• Law on Natural Disaster Prevention No.33/2013/QH13 approved by the National Assembly of Vietnam on June 19, 2013, regulating the natural disaster prevention and control, rights and obligations of agencies, organizations and household, individuals participating in the natural disaster prevention and control, state management and resources to ensure the prevention and control of natural calamities.

• Law on Water Resources No.17/2012/QH13 by the National Assembly of Vietnam on 21 June 2012 on management, protection, exploitation and use of water resources, prevention and mitigation of damages caused by water in the territory of the Socialist Republic of Vietnam.

• Law on Biological Diversity No.20/2008/QH12 promulgated by the National Assembly of Vietnam on 13 November 2008 on conservation and sustainable development of biodiversity, rights and obligations of organizations, households and individuals in the conservation and sustainable development of biodiversity.

• Forest Law No. 16/2017/QH14 promulgated by the National Assembly of Vietnam on November 15, 2017 and effective from January 1, 2019. This Law provides for the management, protection, development and use of forests; processing and trade in forest products.

• Law on Construction No.50/2014/QH13 promulgated by National Assembly, Session VII, on June 18, 2014;

• Law on Road Traffic No.23/2008/QH12 promulgated on 13/11/2008;

• Law on Complaint No.02/2011/QH13 promulgated on 11/11/2011;

• Law on Cultural Heritage No.10/VBHN-VPQH promulgated on 23/07/2013;

• Law on Labor Safety and Health No.84/2015/QH13 promulgated on 25/06/2015;

• Law on Dykes No.79/2006/QH11 promulgated on November 29, 2006;

• Law on Irrigation No.08/2017/QH14 was approved by the National Assembly on 19/06/2017;

• Law on Plant Protection and Quarantine No.41/2013/QH13 promulgated on 25/11/2013.

b. Decrees

• Decree No.38/2015/ND-CP dated 24/04/2015 of the Government on waste management and waste material;

• Decree No.18/2015/ND-CP dated 14/02/2015 of the Government on environmental protection planning, strategic environmental assessment, environmental impact assessment and environmental protection plan;

• Decree No.44/2014/ND-CP dated May 15, 2014 of the Government on land prices.

• Decree No.47/2014/ND-CP dated May 15, 2014 of the Government providing for compensation, support and resettlement when the State recovers land;

• Decree No.155/2016/ND-CP dated 18/11/2016 of the Government, providing for the sanctioning of administrative violations in the field of environmental protection.

• Decree No.25/2013/ND-CP dated March 29, 2013 of the Government on environmental protection charges for wastewater;

• Decree No.67/2012/ND-CP of the Government, amending and supplementing a number of articles of the Government's Decree No.143/2003/ND-CP of November 28, 2003, detailing the implementation of Article of the Ordinance on the exploitation and protection of irrigation works;

• Decree No.113/2010/ND-CP dated 03/12/2010 of the Government on the determination of damage to the environment;

• Decree No.112/2008/ND-CP dated October 20, 2008 by the Government on management, protection and integrated exploitation of natural resources and environment of hydropower and reservoirs;

• Decree No.120/2008/ND-CP dated 01/12/2008 of the Government on river basin management;

• Decree No.114//ND-CP dated 04/09/2018 of the Government on the management of dam safety.

c. Circulars

• Circular No.27/2015/TT-BTNMT dated 19/05/2015 of the Ministry of Natural Resources and Environment on strategic environmental assessment, environmental impact assessment and environmental protection plan.

• Circular No.36/2014/TT-BTNMT dated 30/06/2014 of the Ministry of Natural Resources and Environment, detailing methods of land valuation; building and adjusting the land price table, specific land prices and land pricing consultancy.

• Circular No.37/2014/TT-BTNMT dated 30/06/2014 of the Ministry of Natural Resources and Environment, providing detailed regulations on compensation, support and resettlement when the State recovers land.

• Circular No.30/2014/TT-BTNMT on land allocation, land lease, change of land use purpose, land acquisition.

• Circular No.36/2015/TT-BTNMT dated 30/06/2015 of the Ministry of Natural Resources and Environment on the management of hazardous waste.

• Circular No.22/2010/TT-BXD of the Ministry of Construction on labor safety in construction of works.

• Circular No.19/2011/BYT-TT dated 06/06/2011 of the Ministry of Health, guiding the management of labor hygiene, health of workers and occupational diseases.

• T Circular No.13/2007/TT-BXD dated 31/12/2007, guiding a number of articles of Government's Decree No.59/2007/ND-CP dated April 9, 2007 on solid waste management.

• Circular No.34/2010/TT-BCT dated 07 October 2010 of the Ministry of Industry and Trade, regulating the dam safety management of hydropower projects

d. Decisions

• Decision No.52/2012/QD-TTg dated 16/11/2012 of the Prime Minister on the policy to support job creation and vocational training for laborers whose agricultural land is acquired.

• Decision No.3733/2002/QD-BYT dated 10/10/2002, issuing 21 labor sanitation standards, 05 principles and 07 labor sanitation criteria.

• Government Directive in Document No.21/CT-TTg dated 14 October 2013 on strengthening the management of reservoir safety.

• Decision No. 1858 / QD-TTg dated November 2, 2015 of the Prime Minister on approving the list of "dam rehabilitation and safety improvement (WB8) funded by the World Bank (WB);

• Decision No. 4638 / QD-NN-HDQT dated November 9, 2015 of the Minister of Agriculture and Rural Development approving the feasibility study report of the project "dam rehabilitation and safety improvement" (WB8) funded by the World Bank;

• Decision No. 5492 / QD-BNN-HTQT dated December 30, 2015 of the Ministry of Agriculture and Rural Development Approving the Dam Safety Framework of the project "dam rehabilitation and safety improvement" (WB8) funded by the World Bank;

• Decision No. 5095 / QD-BNN-HTQT dated December 6, 2016 of the Ministry of Agriculture and Rural Development on approving the adjustment of the Manual of the project "dam rehabilitation and safety improvement" (WB8) funded by the World Bank attach Decision No. 2793 / QD-BNN-HTQT dated July 6, 2016 of the Ministry of Agriculture and Rural Development.

e. Applicable standards

• QCVN 01: 2009/BYT: National technical regulation on drinking water quality.

• QCVN 02: 2009/BYT: National technical regulation on domestic water quality.

• QCVN 08-MT: 2015/BTNMT: National technical regulation on surface water quality;

• QCVN 09-MT 2015/BTNMT: National technical regulation on groundwater quality.

• QCVN 14: 2008/BTNMT: National technical regulation on domestic wastewater.

• QCVN 40: 2011/BTNMT: National technical regulation on industrial wastewater quality.

• QCVN 38: 2011/BTNMT: National technical regulation on surface water quality to protect aquatic life.

• QCVN 03-MT: 2015/BTNTM: National technical regulation on limit of some heavy metals in soil.

• QCVN 15: 2008/BTNMT: National technical regulation on pesticide residues in the soil.

• QCVN 43: 2012/BTNMT: National technical regulation on sediment quality.

• QCVN 05:2013/BTNMT: National technical regulation on Ambient Air Quality.

• QCVN 06: 2009/BTNMT: National technical regulation on hazardous substances in ambient air.

• QCVN 26: 2010/BTNMT: National technical regulation on noise.

• QCVN 27: 2010/BTNMT: National technical regulation on vibration.

• QCVN 07: 2009/BTNM: National technical regulation on hazardous waste thresholds.

• QCVN 18: 2014/BXD: National technical regulation on construction safety

• QCVN 04 - 05:2012/BNNPTNT: National technical regulation on hydraulic structures – The basic stipulation for design.

f. Legal documents provided by Project Owner

• PMU Decisions: No. 61 / QD-BQL-WB8, dated 08/6/2017, approving the plan for selecting contractors for investment preparation phase (phase 2); No. 20 / QD-BQL-WB8, dated January 23, 2018, approving the results of evaluation of documents presenting interest in package number C1-PHUYEN-CS1; No. 69 / QD-BQL-WB8, dated March 26, 2018, approving the results of contractor selection of Package No. C1-PHUYEN-CS1: Consultancy for preparation of Feasibility Study Report and Dam Safety report under the Dam Safety Repair and Improvement sub-project in Phu Yen Province;

• Pursuant to the contract No. 01/2018 / HDTV-LDA-WB8 dated March 27, 2018; Package C1-PHUYEN-CSI: Advice to prepare feasibility study reports and dam safety reports; Sub-project: Repairing and improving dam safety in Phu Yen province under the project: Repairing and improving dam safety (WB8) between Phu Yen Agriculture and Rural Development Project Management Board and Company between Agriculture and Rural Development Project Management Board Phu Yen province and Binh Dinh Irrigation and hydroelectric Construction Consultant Joint Stock Company.

g. Compliance with the environmental and social impact assessment

73. The Subproject‘s environmental and social impact assessment will be carried out in accordance with the World Bank and the Government‘s environmental assessment procedures. In particular, it will be subject to the environmental and social management framework (ESMF) of the project that the WB reviewed and approved. Social and environmental screening will be conducted for each subproject to determine the appropriate size and type of the environmental assessment. Based on that, TOR will be prepared for environmental and social impact assessments in accordance with the subproject scope and the potential impacts anticipated arising from the subproject implementation. Environmental and social screening will be conducted by World Bank safeguard policy experts. The TOR for the environmental and social impact assessments will also be reviewed and approved by the World Bank Safeguard Policy Specialists prior to the implementation of the environmental and social impact assessments. In the process of the environmental and social impact assessment, consultations with affected people and local NGOs should be conducted. ESIA will be publicly disclosed at the subproject sites accessible to locally affected peoples and local NGOs in Vietnamese language the English version will be disclosed on the WB‘s external website before subproject appraisal.

2. The World Bank’s safeguard policies

74. The objective of these policies is to prevent and minimize impacts to people and natural environment in the development process. The safeguard policies provide basis for stakeholders’ participation in the project designs and act as an important tool for building ownership among local people.

75. The effectiveness and development of the WB’s projects and programs has been increasing significantly as a result of attention to these policies. The World Bank's safeguard policies are available on the website at , where the environmental protection policies are published.

1. Project level

76. The Project’s environmental and social screening has been implemented in accordance with OP 4.01 and indicated that the World Bank's Safeguard Policies on Environmental Assessment (OP/BP 4.01), Natural Habitats (OP/BP 4.04), Indigenous Peoples (OP/BP 4.10), (OP/BP 4.11) Physical Cultural Resources, Involuntary Resettlement (OP/BP 4.12), Safety of Dams (4.37), Projects on International Waterways (OP/BP 7.50) and Pest Management (OP 4.09) will be applied to this Project. According to the screening, the Project is classified as Category A. In addition, it needs to comply with the World Bank's requirements for community consultation and dissemination.

2. Subproject level

77. The subproject will only upgrade the dam on the existing reservoirs, has been screened for the environment and society and determined that: the subproject does not cause major impacts on the environment and society of the project implementation area. Relevant World Bank policies for the subproject include:

Environmental safeguard policies

- OP/BP 4.01 Environmental assessment

- OP 4.09 Pest Management

- OP/BP 4.37 Safety of Dams

Social safeguard policies

- OP/BP 4.12 Involuntary resettlement

- OP/BP 4.10 Indigenous Peoples

OP/BP 4.01 Environmental Assessment

78. This policy is going throughout the process of identifying, preventing and mitigating environmental and social potential negative impacts associated with the World Bank 's lending activities. In the work of the World Bank, the purpose of the environmental assessment is to improve decision making, ensure that the project options are being reviewed and sustainable and that the community to be likely affected must be consulted. The Borrower is responsible for environmental assessment (EA) and the World Bank advises the Borrower at their request. The borrowing projects are proposed in four categories, depending on locations, sensitivity, scales of the projects, nature and extent of potential environmental impacts, including A, B, C and FI.

79. This Subproject activates OP 4.01 as it relates to the construction and operation that will have social environment potential negative impacts. Based on the results of the environmental screening, the Subproject is classified B in terms of environment. As defined in OP 4.01 and the Government’s environmental assessment regulations, this ESIA is prepared for the Subproject to meet the requirements of the Government’s regulations and the World Bank’s safeguard policies. Upon appraisal, the ESIA of this Subproject will be publicly disclosed to the local people in the project area to ensure that affected people and local NGOs can access it easily and it will be disclosed through the World Bank website.

OP/BP 4.09 Pest management

80. The purpose of the pest management policy is to minimize and manage environmental and health risks associated with the use of pesticides, to promote and support safe, effective and environmentally-friendly pest management. The purchase of pesticides in a WB-financed project must be assessed for the nature and extent of risks involved, taking into account the proposed and intended use. For pest management affecting one of the two sectors of agriculture or public health, WB supports a strategy to promote the use of biological control methods and reduce reliance synthetic chemical pesticides. In Bank-financed projects, the borrower addresses pest management issues in the context of the project's environmental assessment. In appraising a project that will involve pest management, the Bank will assess the capacity of the country's regulatory framework and institutions to promote and support safe, effective, and environmentally sound pest management. The implementation of the subproject does not increase the capacity of the reservoir, does not increase the irrigated area in the downstream area and does not affect the crop structure in the subproject area. The repair of the culverts has been damaged and the loss of water will be overcome to ensure the more stable irrigation water regulation and will provide adequate irrigation water for the subproject area in the drought season. To restore the initial volume and area of ​​the reservoirs, then the cultivation of agricultural crops for areas that lack water in the drought season will be restored, on the other hand, when sufficient irrigation water is available, it can lead to changes. some plant varieties and planting areas. Therefore, it will increase the amount of pesticide and fertilizer in the restored area and increase the pest in the subproject area. On the other hand, the use of chemicals to kill termites in the dam body, if not well managed, also affects the surrounding environment due to residues and disposal not in the right places or overflowing rainwater attach termite chemicals.

OP/BP 4.37 Safety of Dams

81. This policy is triggered for the whole project because of the safe operation of dams related to the socio-economic development and environment. When borrowing from the World Bank for construction of new dams, a borrower must propose a dam safety policy based on opinions of experienced and responsible experts in charge of design and construction supervision and that borrower, by way of the dam safety measures, will implement them throughout the project cycle. This policy also applies to the rehabilitation and improvement of existing dams, which affect the performance of a project. In this case, the dam safety assessment should be undertaken and additional dam safety measures should be proposed. OP 4.37 recommends that, in an appropriate circumstance, WB staff will discuss necessary measures with clients to strengthen institutional, legal and regulatory framework for dam safety programs.

OP/BP 4.12 Involuntary resettlement

82. The Involuntary Resettlement Policy is to address long-term difficulties, poverty and environmental impacts on affected people during a resettlement process. OP 4.12 applies to regardless of whether an affected person is relocated or not. The WB describes all processes and results of "involuntary resettlement" or simply resettlement, even when affected people are not required to relocate. The resettlement is involuntary when the Government has the right to requisition of land or other assets, and when the affected people have no choice to maintain their current livelihood.

83. This policy applies because this sub-project causes temporary or permanent effects on involuntary land acquisition, and loss of land-related architectures and assets to build the subproject. After appraisal, the subproject prepared and disseminated Resettlement Policy Framework and Resettlement Plan. Resettlement Policy Framework and Resettlement Plan include measures to ensure displaced persons: (i) be informed of options related to resettlement; (ii) consulted and selected alternative resettlement plans; and (iii) compensation and livelihood restoration.

OP 4.10 Indigenous peoples

84. The policy of defining ethnic minorities can be defined in particular geographical areas by the presence of varying degrees of the following characteristics:

- Ties as closely as members of the different indigenous cultural group and are recognized for this feature by others

- Lives in concentration in an environment which is different from geography or territory inherited by the ancestors in the project area and to be close to the nature of the habitat and territory.

- Culture, economy, society or political institutions are different from those of the majority of cultures and societies.

- Ethnic minority language differs from the official language of the region or country.

85. The required condition for approving the investment project: OP 4.10 requires the borrower to undertake consultations and disclosures with ethnic minorities that may be affected and establish a broad community support model for the subproject and its objectives. The project financed by the Bank shall include calculations to (a) avoid potential negative impacts on ethnic minority communities; or (b) when avoiding is not feasible, measures should be proposed to minimize, mitigate, or compensate for impacts.

86. This policy does not apply to this subproject because: In the area, there are 26 AHs directly from the land acquisition activities of the subproject but not ethnic minorities people.

WBG EHS Guidelines

87. The Environment, Health and Safety Guideline (EHS) by a World Bank Group (WBG)/International Finance Corporation (IFC) was introduced in 2008. This is an important guideline on environmental, health and safety protection in industrial development and other projects. It set out the goals to be achieved and measures to be taken to deliver the best results at reasonable costs. This Guideline can be found at the website .

World Bank’s policy on Access to Information

88. In addition to the environmental safeguard policies to promote the transparency and the accountability, WB issued the Information Access Policy relating to proposed safeguard measures. It sets out the policy to support borrowers’ decision-making by allowing them accessing information relating to social and environmental aspects of such projects at the website in native language, which is easy to understand and intuitive. The WB ensures that relevant environmental and social protection documents related to such projects as well as the preparation procedures related to subprojects are introduced timely prior to the appraisal. The World Bank’s information access policy requires disclosure of information in both English and Vietnamese languages and meets the World Bank’s standards.

Table 16: Summary of environmental assessment process of WB & Government

|The stages in the |environmental assessment process |Vietnam |

|environmental assessment|(WB (OP/BP 4.01 on Environmental Assessment) |(Decree No. 18/2015/ND-CP, Circular |

|process | |No.27/2015/TTBTNMT) |

|Screening |List of categories (A, B, C, FI) |Categories: I, II, III and IV of Decree No. |

| |It is not mandatory for each specific case to classify, |18/2015/ND-CP. |

| |apply safety policy and determine environmental assessment|Rules, regulations in Appendix I, II and III - List |

| |tool (EA). |of projects requiring submission of SEA and EIA |

| |The World Bank will classify a proposed project into one |report for approval. |

| |of four categories including A, B, C, or FI depending on |All projects are not listed. |

| |type, location, sensitivity and scale of the project and |Generally, the Project Owners classify their projects|

| |the nature, the importance of its potential environmental |based on the classification as stated in Decree |

| |impacts. |No.18/2015/ND-CP and consulted with the Department of|

| |Type A: Requirement for full environmental impact |Natural Resources and Environment (DONRE) or Vietnam |

| |assessment. In some cases, the social and environment |Environment Administration (DONRE). VEA) to |

| |management framework is required, too. |categorize and require EA report such as: |

| |Type B: ESIA, social and environment management framework |Projects fall into Appendixes: I, II, III: SEA or EIA|

| |or social and environment management plan is required. In |are required |

| |most cases, social and environment management framework |Projects fall into Appendix IV: no EIA and EPP are |

| |and/or social and environment management plan are |required |

| |required. |Projects fall into Appendixes: I, II, III and IV: EPP|

| |Type C: no EA action. |is required. |

| |Type FI: social and environment management framework is | |

| |the most commonly tool. In the case of a number of | |

| |sub-projects that have been identified before the | |

| |appraisal, the FI will prepare specific tools based on the| |

| |frameworks, e.g. the ESIA or social and environment | |

| |management plan. | |

|Environmental assessment|Depending on the project impacts, a range of tools are |The EA tools like SEA, EIA or EPP are identified |

|tool |used to meet the World Bank's requirements, including: |based on Appendixes: I, II, III and IV of Decree |

| |environmental and social management framework; specific |No.18/2015/ND-CP. |

| |environmental assessment; environmental and social | |

| |management plan; regional and sectoral EA; risk or hazard | |

| |assessment; Environmental audit. The World Bank provides | |

| |general guidelines for implementing each tool. | |

|Scope of environmental |The World Bank helps the borrower to draft the TOR for EA |TOR for EA is not required. |

|assessment |and to determine the EA scope, procedures, timetable and |Normally, after consultation with the local DoNRE or |

| |outline of a EA report. |the Environmental Department (VEA) about the type of |

| |A A-type project requires ESIA TOR and the determination |EA, Project Owner will prepare an EA report. |

| |of scope and consultation will be necessary to prepare the| |

| |TOR for environmental assessment report. | |

|Community consultation |During the EA, the Borrower must consult with affected |Project owner is responsible for consulting with the |

| |groups and local NGOs on the environmental aspects of the |People's Committee of the commune, ward or township |

| |project and focus their views. |(hereinafter referred to as the commune) where |

| |For a A-type project, the Borrower shall consult these |project is being implemented, consulting with |

| |groups at least twice: (a) immediately after the |organizations or communities directly affected by |

| |environmental inspection and before the EA TOR completion;|project; Research and receive objective opinions and |

| |and (b) once a draft EA report has been prepared. In |requests from relevant agencies to minimize project |

| |addition, the Borrower will consult with these groups |negative impacts on the natural environment, |

| |throughout the project implementation process as needed to|biodiversity and public health. |

| |address issues related to EA that affect them. |Commune People's Committees where a project is |

| |For a B-type project, there should be at least one |implemented and organized and directly affects will |

| |community consultation meeting. |be consulted. Project owner is responsible for |

| |For meaningful consultations, the Borrower provides |submitting the EIA report to the commune-level |

| |relevant project documents in a timely manner prior to the|people's committees where the project is implemented |

| |consultation in a form and language that the group can |and organized and directly affects, together with a |

| |understand and be accessible to. |written request for comment. Within 15 working days |

| |The minutes of the public meeting are included in the |from the date on which a EIA report is received, the |

| |report. |commune-level people's committees and organizations |

| | |under the direct impact of the project are obliged to|

| | |submit their responses if they do not approve the |

| | |project. |

| | |The community consultation is carried out in the form|

| | |of community meetings co-chaired by the Project Owner|

| | |and the commune people's committees where the project|

| | |is implemented together with the participation of the|

| | |community like Vietnam Fatherland Front, |

| | |socio-political organizations, socio-professional |

| | |organizations, population quarters, villages/hamlets.|

| | |All opinions of participants in the meetings must be |

| | |fully and truthfully presented in the minutes of the |

| | |meeting. |

|Public information |Before the World Bank conducts a project appraisal, EA |After EIA report is approved, the Project Owner is |

| |report must be made public in a way that is easily |responsible for preparing, approving and publicly |

| |accessible to project-affected groups and local NGOs. When|displaying EMP at the local Commune People's |

| |the World Bank officially receives report, the World Bank |Committee office, in consultation with the community |

| |will publish the report in English to the public via its |for people’s information, inspection, monitoring. |

| |website. |(Article 16 of Decree No.18/2015/ND-CP). |

|Independent |For a A-type project, the Borrower retains independent EA |This content is not regulated in Vietnamese policy. |

|environmental specialist|specialist who have no contact with the project to |The Project Owner shall implement or hire a |

| |implement EA. |consulting unit which satisfies the conditions |

| |For a high-risk A-type project or a project with |specified in Clause 1, Article 13 of Decree |

| |multi-dimensional environmental concerns, the Borrower |No.18/2015 to make EIA report. Project Owner or |

| |will also hire a consultative group of independent |consultancy companies must fully meet the following |

| |environmental specialists with international |conditions: (i) Staff responsible for EIA must have |

| |qualifications to advise on the project aspects relating |at least BA degree and EIA consultancy certificate; |

| |to EA. |(ii) specialized staff involved in the project must |

| |Specialists/consultancy companies will be selected through|have university or higher degrees; (iii) have |

| |bidding under the close supervision of the World Bank. |laboratory and testing equipment certified for |

| | |measuring, sampling, processing and analyzing |

| | |environmental samples for the environmental impact |

| | |assessment of the project; In the absence of a |

| | |laboratory, the calibration equipment must meets the |

| | |requirements and there must be contract with |

| | |qualified unit. |

|EA review/approval |The WB reviews EA's findings and recommendations to |The Ministry of Natural Resources and Environment |

|process |determine if it provides sufficient grounds for the Bank |appraise and approve EIA reports of the projects |

| |to process the project. When Borrower has completed all or|specified in Appendix III to this Decree, excluding |

| |part of the environmental assessment before the Bank |the projects relating to defense and security |

| |participates in a project, the Bank will consider the |contents. - The Ministries or the ministerial-level |

| |environmental assessment to ensure its consistency with |agencies shall appraise and approve EIA reports on |

| |this policy. The Bank may, where appropriate, request |projects under their competence for investment |

| |additional environmental assessments, including public |approval, except for projects listed in Appendix III |

| |consultation and disclosure. |to this Decree. |

| | |The Provincial People's Committees conduct appraisal |

| | |and approval of EIA reports for projects in their |

| | |provinces, except the projects mentioned above; |

| | |The appraisal will take place at least 45 working |

| | |days at the MoNRE level and 30 working days at the |

| | |DoNRE level and 5 working days at the district level |

| | |after receipt of full Environmental Impact Assessment|

| | |or full EPP. |

|The number and language |Number of copies are not specified. |Project Owner must submit at least 07 environmental |

|of the EA/EIA to be |Language requirements: English and Vietnamese. EA reports |impact assessment reports (depending on number of |

|evaluated |in Vietnamese are required for domestic disclosure and |appraisal committee members) and 01 feasibility study|

| |must be in English for publication on the World Bank’s |or technical report of a proposed project |

| |website. | |

|Content of EA report |For a A-type project, the content of a EA report is in |The content of a EA report must be in line with |

| |line with Appendix B of OP4.01. |Circular No.27/2015/TT-BTNMT. |

| |The EA scope for a B-type project may vary depending on | |

| |each project, but the EA's scope is narrower than that of | |

| |a A-type project. An environmental and social management | |

| |plan is an integral part of an EA type A (regardless of | |

| |other tools to be used). EA for a B-type project may also | |

| |be an environmental and social management plan with the | |

| |content set out in Appendix C of OP 4.01. | |

|Monitoring EA |During the project implementation, the World Bank will |The local DONRE is entrusted monitoring the |

| |supervise the implementation of the environmental aspects |environmental compliance of the projects. |

| |on the basis of environmental regulations and the Borrower|At the end of the project construction phases, the |

| |arranges reports of the agreement in the Loan Agreement |Environmental Management Agency will coordinate with |

| |and in other project documents to determine if the |the Construction Management Agency to monitor the |

| |compliance of the Borrower's Environmental Procedures |compliance of the environmental management activities|

| |(mainly with EMP) is satisfactory. If the compliance is |stated in the EAs. |

| |not satisfactory, the World Bank will discuss with the | |

| |Borrower to ensure the compliance, if necessary. | |

CHAPTER 4: NATURAL, SOCIO-ECONOMIC CONDITIONS AND ENVIRONMENTAL STATUS

1. Natural conditions

1. Geographical and geological conditions

89. Phu Yen is a coastal province in the South Central of Vietnam, located East of the Truong Son mountain range, with geographical coordinates: North point: 13041'28"; Extreme South point: 12042'36"; Extreme West Point: 108040'40" and the easternmost point: 109027'47". The natural area of ​​the province is 5,060 km2, in which, hills and mountains occupy 70% area, the terrain slopes from west to east and is strongly divided, The North borders on Binh Dinh province, The South borders on Khanh Hoa province, The West borders on Gia Lai province and Dak Lak, The East borders on East Sea. Phu Yen has a favorable geographical and transportation for socio-economic development.

90. The province has 09 administrative units including the districts: Dong Xuan, Dong Hoa, Song Hinh, Son Hoa, Phu Hoa, Tay Hoa, Tuy An, Song Cau town and Tuy Hoa city (is the provincial capital).

Figure 2: Map of the administrative units of Phu Yen province

[pic]

2. Topographic and geological conditions

a. Terrain conditions

91. Phu Yen terrain is quite diverse: plains, hills, highlands, valleys alternate, with steep slopes of terrain from West to East, with two large plains filled by the Ba and Ky Lo rivers with an area of ​​816 km2, Of which, Tuy Hoa plain alone accounted for 500km2, This is the most fertile plain.

92. All three sides of Phu Yen are mountains, in the North there is the Cu Mong mountain range, the south is Dai Lanh mountain range, the West is the eastern ridge of Truong Son mountain range. Mountains in Phu Yen, the highest peaks are concentrated in the West of Dong Xuan district (Chu Treng mountain-1,238m, La Hien-1,318m mountain), in the Southwest of Tuy Hoa district (Hon Du-1,470m, Hon Chua-1,310m) and South of Song Hinh district (Chu Ninh-1.636m mountain), The remaining mountains are generally not high, elevation ranging from 300-600m. In the inner city, although has a mountain not very high, it is very famous because it is located on the banks of the Ba River, there is ancient Nhan Tower, lyrical landscape, It's Nhan Mountain. Due to the mountainous terrain, there are many steep passes in Phu Yen. Along the National Road 1A, there are relatively long and rugged mountain passes, located in all districts. The Phu Yen plain is accreted mainly by three large rivers: Ba river, Ban Thach river accretion to create Tuy Hoa plain and Ky Lo river to accretion up Tuy An plain and Dong Xuan, in which Tuy Hoa plain is considered as the granary of the Central region,

b. Geological conditions and soil

93. Geological conditions in the subproject area common in the layers follows:

- Layer 1: Fine-grained sandy mud containing plant matter and organic impurities; dark blue, dark gray; water saturation, softness, with fake flow phenomenon; distributing lake bed area.

- Layer 2: Light sandy clay - medium containing gravel and rolling stones of many sizes; yellow brown, reddish brown gray; moist soil, flexible state; Poorly structured; Origin dQ.

- Layer 3: sandy clay and contain grit; yellow brown, red brown, white gray, blue gray; moist soil, state of tight plasticity - semi-rigid; Tight structure - hard tight; Origin eQ.

- Layer 1a: Fine-grained sandy mud containing plant corpses and organic impurities; dark blue, dark gray; water saturation, Soft weak, There is a phenomenon of fake flow; distributing lake bed area.

- Layer 1b: Medium and heavy sandy clay; gray blue, dark gray; moist soil, natural state soft plasticity - plasticity tight; moderately tight structure; Origin aQ.

- Layer 1c: Medium coarse grained sand; gray blue, white gray, dark brown; water saturation, sporadic; poorly-foamed; this floor appears strong groundwater; Poorly structured; Origin aQ.

- Layer 4: Strong to moderate weathered basaltic stones; golden brown, black brown; gaps structure; block structure

- Layer 5: Coarse grained sand containing pebbles, composed mainly of quartz, Fensfat.

- Layer 6: Granite boulders, firmly adhered by clay powder.

- Layer 7: White clay with yellowish brown holes, half hard state. This is a direct weathering product of the original stone, high bearing capacity.

- Layer 8: Granite original stone

- Layer (MW): Stone Ba zan tholeite weathered, strongly cracked to moderate; low water permeability; gray white, rusty brown, brown gray; Color-changing mineral components are mainly aluminum oxide, oxit titan, silicat; stone has a cubic structure, original architecture; hard rocks level VII-VIII. RQĐ from 20 - 40%. Flow dehydration unit (q = 0,41 ÷ 0,58 l/p/m.m)

- Layer (SW): stone Ba zan tholeite weathered and cracked weakly; low water spermeability; gray white, rusty brown, brown gray; Color-changing mineral components are mainly aluminum oxide, oxit titan, silicat; stone has a cubic structure, original architecture; hard rocks level VII-VIII. RQĐ from 60 - 80%. Flow dehydration unit (q = 0,07 ÷ 0,09 l/p/m.m)

3. Climate and meteorological conditions

94. The subproject area is located in the monsoon tropics in Southeast Asia, There are 2 distinct seasons: rainy season and dry season. The rainy season lasting from September to December, dry season from January to August every year. The specific climatic features are as follows: (Source: Main report of the subproject)

a. Air temperature

95. Average air temperature characteristics for many years, supreme temperature, minimum temperature:

Table 17: Distribution table of air temperature characteristics

Unit: oC

| Station |Tuy Hoa |Son Hoa |Ha Bang |Song Hinh |Mien Tay |

|Month | | | | | |

|I |23.3 |22.1 |22.5 |21.4 |20.6 |

|II |23.9 |23.2 |23.5 |22.4 |21.6 |

|III |25.4 |25.4 |25.3 |24.4 |23.7 |

|IV |27.4 |27.7 |27.2 |26.5 |25.7 |

|V |28.9 |28.7 |28.6 |27.4 |26.6 |

|VI |29.4 |28.5 |29.1 |27.5 |26.5 |

|VII |29 |28.4 |29.1 |27.4 |26.3 |

|VIII |28.7 |28.2 |29 |26.6 |26.1 |

|IX |27.8 |27 |27.5 |26.3 |25 |

|X |26.5 |25.4 |25.8 |24.8 |23.7 |

|XI |25.3 |24.1 |24.5 |23 |22.4 |

|XII |23.9 |22.5 |23 |21.6 |21 |

|Year |26.6 |26 |26.3 |24.9 |24.1 |

b. Air humidity

Table 18: Table of distribution of relative humidity characteristics (Unit:%)

| Month |I |

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|Station | |

| |0.01% |0.1% |0.2% |0.33% |0.5% |1% |

|Phu Xuan |1750 |900 |0.42 |4.49 |147.64 |37.5 |

|Dong Tron |1750 |902 |0.42 |1,672 |52.72 |13.27 |

|Hon Dinh |1750 |902 |0.47 |0.224 |7,059 |37.3 |

|Gieng Tien |1750 |900 |0.42 |0.112 |3,529 |37.3 |

|Dong Khon |1750 |900 |0.47 |0.28 |8,835 |37.3 |

|Hoc Ram |1750 |900 |0.42 |0.25 |8.01 |37.5 |

|EaDin 1 |1750 |900 |0.42 |0.17 |5,294 |37.3 |

|Hoa Thuan |1750 |900 |0.42 |0.08 |2,420 |37.3 |

Where

- Xo: Average annual rainfall for many years

- Mo: Modular flow

- (o: Flow coefficient

- Y0: Depth of flow of the basin

- Q0: Annual flow

- Wo: Total flow volume

a. Design year flow

96. The specific calculation results are in the following table:

Table 25: Calculation table of results for the design year flow

|Works water reservoir |Q0 (m3/s) |W0 (106m3) |M0 (l/s,km2) |

|Phu Xuan |4.49 |147.64 |37.5 |

|Dong Tron |1,672 |52.72 |13.27 |

|Hon Dinh |0.224 |7,059 |37.3 |

|Gieng Tien |0.112 |3,529 |37.3 |

|Dong Khon |0.28 |8,835 |37.3 |

|Hoc Ram |0.25 |8.01 |37.5 |

|EaDin 1 |0.17 |5,294 |37.3 |

|Hoa Thuan |0.08 |2,420 |37.3 |

Where:

- Mo: Modular flow

- Q0: Annual flow

- Wo: Total flow volume

b. Distribution Design annual flow

97. The distribution results of Q85% flow model in the reservoirs are detailed in the following table:

Table 26: Distribution table of design annual flow

|Works water reservoir |Month |1 |

| |km2 |0.1% |1.0% |2.0% |

|Phu Xuan |126 |2,521 |1,910 |1,573 |

|Dong Tron |69.50 |2,010 |1,360 |1,035 |

|Hon Dinh |6.00 |258 |176 |148 |

|Gieng Tien |3.00 |126 |96 |80 |

|Dong Khon |7.51 |505 |392 |320 |

|Hoc Ram |6.81 |539 |360 |274 |

|EaDin 1 |4.50 |215 |165 |131 |

|Hoa Thuan |2.06 | 81 |64 |59 |

i) Chart design flood process

98. Coastal areas in the Central region often occur flash floods, flood intensity increases quickly, the time of rising high flood is short, flood process path using mathematical modeling to calculate is appropriate. The design process of flood flow of the lakes is as follows:

Table 28: Chart flood diagram of reservoirs belong subproject

|Reservoir |Chart flood diagram |

|Phu Xuan |[pic] |

|Dong Tron |[pic] |

|Hon Dinh |[pic] |

|Gieng Tien |[pic] |

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c. Muddy sand flow

99. Due to heterogeneous conditions of flow formation and sand mud the over the entire basin, So the evolution of sand mud during the year and flood process is very complicated. Average amount of mud and sand in dry season months is about 150-200 g/m3. In the first floods, the amount of sand is not very large By the end of October, heavy rains began to appear the basin is eroded more strongly The amount of mud and sand increases. In these months, the average turbidity is about 1000g / m3. At the end of the flood season, the amount of mud and sand decreases

1. Extreme weather events in 7 districts under the subproject

100. At the conference "Climate change in Phu Yen province: situation, impacts and responses", in the presence of many environmental scientists of Vietnam, spent time analyzing and giving an explanation on the causes of Phu Yen province the regularly of storms and floods. When referring to the factors affecting the meteorology and hydrology, it often causes floods in Phu Yen, experts from the Institute of Meteorology, Hydrology and Environment pay attention to Phu Yen's topographical features and natural conditions. According to engineer Vo Anh Kiet (Hydrometeorology Station in the South Central Coast), the Central region in general, Phu Yen in particular rainy season coincides with the period of winter monsoon should combine storm, tropical depression, tropical convergence with enhanced cold air is the main cause of many heavy rains in the province. Besides, Phu Yen has a 3-sided terrain bordering the mountain, West is the eastern edge of the Truong Son range. In the middle of the Eastern flank of the Truong Son mountain range is a low mountain range that runs across the sea to form Van Hoa plateau is the boundary dividing the two plains built by the Ba and Ky Lo rivers. Phu Yen also has many steep passes and all kinds of terrain such as plains, hills, highlands, valleys alternating lower from West to East. These are the natural conditions that govern the hydro-climatic conditions of Phu Yen.

101. In the same opinion, Senior Lieutenant colonel Nguyen Van Thao, The Head of the Rescue and Rescue Department of Military Region 5 made a comment: “In the interior of Phu Yen, there are many mountains with the height of 300-600m creating many passes, slopes and small valleys; There are many other short rivers such as Cau River, Ky Lo River ... with quite steep slope. In general, Phu Yen is like a valley of the South Central Coast. Therefore, when there are storms, tropical depressions operate in the south of the East Sea or land in the Central region, even though Phu Yen is on the edge of storms, there are also rain and floods. Not only rain in the area causing floods but heavy rain in Dak Lak, Gia Lai, Southwestern Binh Dinh, Phu Yen is also greatly affected. On the other hand, Phu Yen soil is mainly rocky, arid, bare hills, thin vegetation (not to mention deforested forestswith this feature when the rain does not retain water, so creating floods very quickly ”

4. Biodiversity

102. The subproject is not located in conservation areas such as watershed protection forest, National park or biosphere reserve or nature conservation area, etc. Therefore, ecological characteristics and biodiversity locally evaluated for the subproject scope and surrounding areas based on the results of the current status survey and information provided by local people.

103. According to the results of the evaluation of the current land use status of the subproject, the subproject area has identified key ecosystems, including:

- Production forest ecosystem: Plantation forest ecosystem, distributed in low hills and mountains, is planted and exploited periodically, the plants mainly include cajuput, eucalyptus, and rubber trees.

- Agricultural ecosystem: Mainly rice fields, vegetables and short-term crops such as corn, beans, peanuts, sugarcane …

- Man-made ecosystem: Including fruit trees such as Avocado, Orange, Pineapple, Coconut Siamese, Banana, ... and cattle, poultry and domestic animals of households in the land use scope of the subproject.

- Reservoir aquatic ecosystem: Reservoir aquatic system belong the subproject

- According to the survey results of the Environmental Consultant and refer to the documents show, In the subproject area, there are no rare and precious animals and plants listed under Decree 32/2006 / ND-CP, Vietnam Red Book or IUCN Red List.

1. Flora

104. Flora in the subproject's land use area have little diversity of species, according to which the dominant group of plants, wild plants account for less. Based on the survey results, the subproject area is implemented by the consulting unit can be divided into groups of plants as follows:

- Perennials: Rubber trees are periodically planted and exploited on forest land surrounding the subproject.

- Timber trees: Acacia auriculiformis, acacia, eucalyptus, sandalwood, bamboo, hips, apricot, neohouzeaua, etc. are periodically planted and exploited on forest land area under the scope of subproject and around the subproject scope. Based on the assessment of the current land use status of the subproject shows: Production forests are concentrated mainly in the area of ​​communes. The major crops include acacia auriculiformis and acacia mangium. The entire area is planted under 1 year.

- Annual crops: Sugarcane is grown and harvested annually mainly in districts Son Hoa, Song Hinh and Dong Xuan. Around the subproject area, there are also some hilly land that is cultivated by sugarcane farmers and harvested annually.

- Fruit trees: such as Avocado, Orange, Pineapple, Coconut Siamese, Banana, ... concentrate mainly on garden land, surrounding residential areas and some scattered trees in the area the subproject.

- Food crops: Rice, maize, sweet potato, peanuts, beans, ... mainly concentrated on agricultural land under the scope of the sub-project. Particularly for rice that is mainly cultivated 2 to 3 crops / year, at the time of the survey, rice is being harvested.

- Vegetable crops: Vegetables, Coriander, Basil, ... Focused mainly on the land along the stream, some low-lying areas and a small part of the garden of households..

2. Fauna

105. The fauna in the study area is very poor in terms of species, there is no record of rare and precious animal species subject to strict conservation and protection, no species recorded in the red book

- Domestic animals include: The fauna here is mainly domesticated animals and close to human life, including cattle, poultry, ... pigs, chickens, ducks, and geese. buffaloes, cows, goats, fish, ...

- Wild animals often encountered in the subproject area are assessed according to information of local people, including: Reptiles, amphibians (water snakes, frogs, frogs, rams, toads, ...) , Insects (with groups of beetles, membrane wings, flakes, jumping beetles, earthworms, crickets, etc.), Birds (types of sparrows, lime wicks, humps, etc.), but the frequency appears low and not often.

- In addition, in the subproject area, there is no record of rare and precious animal species subject to strict conservation and protection, no species listed in the red book.

- Fish: raised in ponds mainly freshwater seabass, Drift fish, crucian, tilapia ...... Fish production in ponds is not high. Species encountered on Ban Vai stream, crevices and creeks within the subproject during the rainy season have typical species such as carp, crucian, small fish, wild fish, commercial fish, ditch fish,….

- Mollusks, living in the bottom area such as screw nuts, stone snails, mussels,...

- Crustaceans: Shrimp, Crab,...

- Overall aquatic animals of the subproject area Mainly fishes reared in ponds serving the of people, have not high density, catches are low, mainly serving the needs of the people.

Based on the results of the assessment of the current status of biological resources in the subproject area, mainly forestry and agricultural ecosystems so the species components are usually monotonous, which are mainly the cultivars and domestic animals of farmers. Within the subproject, there is no object of conservation, protection and no significant species of flora and fauna of significant habitat value are affected by the subproject activities.

2. The impact of climate change on Phu Yen province

1. Types of natural disasters often occur in Phu Yen province

106. Phu Yen is one of the South Central Coastal provinces with complex climatic and topographic features. It is the place most affected by natural disasters in Vietnam such as: Storms, tropical depressions, floods, flash floods, river bank erosion, coastline, storm surges, cyclones, thunderstorms, landslides, drought, saline intrusion, … In particular, natural disasters often occur in Phu Yen province must include storms, floods, droughts, river bank erosion, coastline, high tides:

a. Storms and tropical depressions, tornadoes:

107. As mentioned above, the typhoon season in Phu Yen is determined from September to December every year, the most is September and November, but there are also typhoons in the end of December (year 1978). From 2001 to 2014, Phu Yen province had 48 typhoons and 08 tropical depressions landed and affected. When storms or tropical depressions hit this area, it often causes heavy rain to heavy floods, fast concentration, landslides carry mud, sand, great devastation to the mountainous areas as well as spread down to the plains.

b. Flooding:

108. Due to the lower terrain characteristics from the West to the East, the rivers and streams are short and steep, combined with severely damaged forests, When heavy rains occur, the flooding time is very fast, causing flooding in most of the delta. Historically, Phu Yen province has experienced a number of particularly large floods, causing human and property losses in 1993, 2007 and 2009..

c. thunderstorms, Thunder:

109. Phu Yen in coastal areas has an average of 40 days of thunderstorms annually, In mountainous areas or valleys, there are more days of thunderstorms, about 100 thunderstorm days. Winter season usually occurs from March to November, in which mainly from April to October.

d. Flash floods:

110. Occurred mainly along the rivers and streams, especially in small rivers and streams, carrying soil and stones, causing damage to crops, sedimentation, flooded fields, damaging works, especially transport and irrigation. In 2009, typhoon No. 11 (MIRINAE) hit the southern part of the province, combined with intensified cold air and heavy rains in the upper reaches of the rivers, especially the Ky Lo and Cau Rivers, causing severe flash floods. severe damage to the northern of the province including the districts of Dong Xuan, Tuy An (Ky Lo river basin), Song Cau town (Song Cau basin).

e. landslides at river banks, seaside, high- tides:

111. The landslide situation of three large rivers in the province is very complicated and increasingly serious, threaten the lives of thousands of households. Districts along the Ba River are under strong cavitation, landslides have washed away hundreds of hectares of farmland. Whenever storms and floods occur, river water floods inland dozens of meters. Tide phenomenon and sea cavitation as well takes place very serious. More than 180 households in Ro village, Phu Dong ward, Tuy Hoa city are facing with increasingly complicated tides. Since 2003, Ro village has been cavitation by seawater. Tides often rise dozens of meters high.

f. Drought:

112. Due to uneven distribution of rainfall during the year, 8 months of dry season rainfall accounts for only 30% of total annual rainfall, there are years almost 02-03 months without rain. Especially in recent years, due to the impact of climate change, the annual rainfall is inadequate compared to the average of many years and almost no Manchuria rain so in recent years drought occurred in the Winter-Spring crop, Especially in the Summer-Autumn crop, drought occurs almost every year, at least local drought due to insufficient water supply compared to the amount of water evaporated due to prolonged heat, causing local drought, especially the area at the end of the canal and upland areas.

g. Salt intrusion:

113. The lack of water in the dry season has made saltwater intrusion in Phu Yen become stronger. In addition to affecting the area of ​​agricultural land, saline intrusion also affects groundwater in some localities, causing serious shortage of domestic water.

2. The impact of climate change on Phu Yen province

114. The effects of climate change to Agriculture and forestry production, energy, residence and livelihood of the people … This is a matter of all levels and sectors of Phu Yen province special interest. According to Phu Yen Department of Agriculture and Rural Development, In these fields, the agriculture sector attracts a lot of labor, creates jobs and contributes greatly to hunger elimination and poverty reduction. Therefore, up to now, the province has built 41 irrigation works and small reservoirs for agricultural production with an investment of trillions of VND. However, in recent years, due to the impact of climate change, the average rainfall has decreased sharply compared to previous years, resulting in a serious shortage of water in rivers and reservoirs, drought land area, fallow land is becoming more and more serious, causing great damage to agricultural production.

115. Climate change also has the potential to increase the frequency, intensity, volatility and extremes of dangerous weather phenomena such as storms, floods, droughts, etc… cause reduce productivity, quantity, number of crops, pet; Increased risk for production, narrowing agricultural land due to sea level rise and river water were salinization. According to the scenario of MONRE on the results of assessing the impact of sea level rise in land use in Phu Yen province, the land specializing in wet rice cultivation is the most affected type in the area at risk of flooding due to sea ​​level rise. 

116. It is forecasted that from 2020 to 2030, there will be 700 - 800 hectares, and from 2050 to 2070, there will be 900 - 1,100 hectares of land being submerged due to sea level rise. In addition, climate change has a serious impact on vegetation and forest ecosystems; increase the risk of extinction of some plants and animals, degenerating precious and rare gene sources; increased risk of forest fires and disease spread; On average, 30-40 ha of forest is burned every year. Climate change also increases the frequency of storms with high intensity, causing sand, sea waves and high tide to erode banks, desertification of coastal areas; Forest resources are also directly affected, reducing the forest land area with about 245 - 304 ha (period 2020 - 2030) and from 421 - 543 ha (period 2050 - 2070). 

117. In fact, recently, many places in the coastal areas of Phu Yen province have been severely eroded and tended to increase. Currently, the province has 19 landslide areas with a range of 300 - 1,500m; The annual landslide speed is from 10 to 20 meters, some places are from 25 to 35 meters, such as Hoa An village, Xuan Hoa commune (Song Cau town), Ro village, Phu Dong ward, Tuy Hoa city. According to the plan to cope with climate change of Phu Yen province, corresponding to the sea level of 30cm, the flooding rate is 34.56km2, sea level rise 75cm, flooding rate is 39.998km2 and sea level rise 100cm, flooding rate will be more than 44km2.

3. Environmental status

118. Select the location, parameters and frequency of measurement and sampling: The positions of environmental quality survey in the subproject area are selected based on:

- The selected point represents to the regional environment situation;

- Emission sources characteristic;

- Sensitive characteristics of the recipients

1. Quality of ambient air environment and noise

119. Results of analysis of ambient air quality and noise at the works under the subproject is presented in annex 4 of this report.

120. Results of analysis of ambient air quality and noise are compared with the QCVN follows:

- QCVN 05: 2013 / BTNMT: National standard on ambient air quality.

- QCVN 26: 2010 / BTNMT: National standard for noise. In the table above the noise level, the limit value allows noise levels in normal areas from 6 am to 21 pm.

121. Remarks: Monitoring results showed that air quality in the subproject implementation area are guaranteed compared to the standard, the area 8 reservoirs have cool climate conditions, vegetation is production forest, Shrub grows wellThe monitoring parameters are within the limits according to QCVN 05: 2013 and QCVN 24: 2016 / BYT, QCVN 27: 2010 / BTNMT on ambient air quality (dust, noise, vibration).

2. Environmental quality of surface water

122. The results of surface water quality analysis at the works under the subproject is presented in annex 4 of this report.

123. Results of surface water quality analysis are compared with the following QCVN:

- QCVN 08-MT: 2015 / BTNMT: National standard for surface water quality

124. Remarks: The results of surface water quality monitoring showed that the water quality of 8 reservoirs in the subproject meets the B1 standard for irrigation and irrigation purposes. No parameters exceed the permissible limits of B1 standard in QCVN 08-MT: 2015 / BTNMT - National standard on surface water quality.

125. The area where the subproject is implemented is in rural areas, there are almost no industrial production activities in the basin of the reservoir, the source of waste is mainly from farming, agricultural production, animal husbandry feed. However, this source of waste is insignificant, the surface water quality in the project areas is quite good, can be used for irrigation, irrigation or other uses with water quality requirements similar.

3. Quality of groundwater environment

126. Quality of groundwater is measured and sampled at drilled wells in residential areas. The results of analysis of groundwater quality of works under the subproject are presented in Appendix 4 of this report.

127. The results of groundwater quality analysis were compared with the QCVN follow:

- QCVN 09-MT: 2015 / BTNMT: National standard on underground water quality

128. Remarks: Groundwater quality monitoring results showed:

- Metal index is lower than the allowed limit.

- The index of TSS, Ammonium, Phosphate at the samples is at average level.

- Through the results of measurement and analysis of groundwater samples, it is shown that the value of indicators in groundwater is below the permissible limit of QCVN 09-MT: 2015 / BTNMT.

4. Quality of soil environment

129. Results of analysis of soil environment quality in works under the subproject are presented in Appendix 4 of this report.

130. Results of soil environment quality analysis are compared with the QCVN follow:

- QCVN 03-MT: 2015 / BTNMT: National regulation on the allowable limits of some heavy metals in soil

131. Remarks: Results of soil quality monitoring showed:

- The quality of soil in the project area has no signs of pollution.

- The content of heavy metals is below the permissible limit of QCVN 03-MT: 2015 / BTNMT (agricultural land)

4. General socio-economic characteristics of sub-project areas

1. Socio-economic characteristics of subproject communes

1. Agricultural sector condition in subproject area

i) Crop structure in agricultural production in subproject area

132. In Phu Yen province, the total cultivated area in the province in 2018 reached over 133,731 ha, increased by 0.9% compared to 2017. In which, the rice area is 56,870 ha, productivity 69 quintals /ha, 4.7% increase; output of 392,541 tons, increased by 4.8% compared to 2017. Sugarcane area reached 29,764.1ha, up 6.5%; productivity of 645 quintals / ha, an increase of 0.5%; output of 1.9 million tons, up 7% from the previous year. Cassava area is 23,887 hectares, up 3.6%; productivity of 227.5 quintals / ha, up 4.4%; output of 543,311 tons, an increase of 8.1% compared to the previous year.

133. As planned, in 2019, the total cultivated area is over 125,700ha. In particular, rice 55,500ha, yield 66 quintals / ha, output 366,300 tons. The area of ​​sugarcane is 20,000 ha, the productivity is 70 tons / ha, the output is 1.4 million tons. The area of ​​cassava is 20,000 ha, the productivity is 25 tons / ha, the output is 500,000 tons…

134. In the subproject area, the structure of crops is rice mainly 2 crops at summer-autumn and winter-spring crops and other crops are sugarcane and cassava KM419.

ii) Types of chemical fertilizers and pesticides commonly used and utilization rates

• For rice sown:

- Fertilizer amount for 1ha (8-10 tons) of manure, 250 kg of urea, 500 kg super phosphate, 150kg of potassium chloride.

- Basal fertilizing manure, phosphate fertilizer + 20% phosphate + 30% potassium.

- Apply additional fertilizer 60-70% phosphorus + 20% potassium.

• For transplanted rice

- The amount of fertilizer for 1 ha: 4-5 kg ​​of organic fertilizer is decomposed, urea nitrogen 8-12 kg 6-12 kg potassium chloride, 15-25 kg superphosphate Lam Thao. Specific fertilizers depend on the type of rice, the nature of the soil.

- Fertilizer for rooted rice (15-20 days after transplanting): 50-80% protein 20-40% K, 5cm flooded water level.

- In addition to ensuring high and stable productivity, it is necessary to better control some rice pests such as brown planthopper, stem borer, sheath blight, blast disease.

• For sugarcane

- Sugarcane is a high yielding tree, each hectare per year can give us between 150 and 200 tons, and it can even be up to 260 tons (there are 200 tons in the Mekong Delta). The growth time of sugarcane is 10 to 15 months, so nutrients are higher than other crops.

- Normally to produce 100 tons of raw sugarcane (not including buds, leaves ...), the plant needs a nutrient amount of about 120 kg N, 70 kg P2O5, 200 kg K2O.

- The ratio of nutritional factors also varies according to the growth periods:

▪ The period of preschool (from 1 to 5 true leaves) the most required sugarcane is nitrogen, then potassium and phosphorus;

▪ In the period of tillering and at the beginning of the period of high growth, the sugar cane required the most is potassium and then to the phosphate, after is nitrogen;

▪ Period sugarcane ripe (sugar accumulation) demand of sugarcane in N-P-K order.

• For cassava

- Using ROOT 555 preparations to treat seedlings helps to limit the spread of diseases available on seedlings, increase the viability of seedlings, The root of the seedling grows faster, more and more productive, the plant absorbs better and more efficiently nutrients in the soil, provides some of the ammonium acid and trace amounts needed for seedlings, helping Seedlings grow well and have high resistance.

- Handling seedlings soaking 20-25 minutes before planting.

- When cassava is 2 months old, it is recommended to use herbicide again before fertilizing. This time is very important to treat the grass thoroughly because if it does not handle the grass, it will eat food and fertilizer of cassava causing low productivity. – After processing the finished grass, apply manure and keep the appropriate moisture, fertilize according to the tree and fill up the soil, the amount of fertilizer is 20g / tree (the dosage is 200 - 350kg / ha).

- Basal fertilizing:

▪ Method 1: All animal manure 2 tons + 150kg super phosphorus / ha, apply when plowing or applying in rows or holes before planting.

▪ Method 2: Applying organic fertilizer for cassava together with 100kg Super Unicorn and 250kg Sitto Phat 16-8-16-12SiO2 + TE / ha.

- Apply additional fertilizer: Apply one time only after 45 - 60 days after planting: 300kg Sitto Phat 16-8-16-12SiO2 + TE.

▪ Current pesticides are often used: for pests and diseases: Regent 800WP, Karate 2.5EC... spray when 1-2 year old larvae with active ingredients: Indoxacarb (Obaone 95 WG … ), Flubendiamide ( Takumi 20WG…), Chlorantraniliprole (Virtako 40WG, Prevathon 5 SC, Voliam targo 063SC); For disease: Camilo 150SC, Chevil 5SC, Tilt super 300EC, Nevo 330EC, Anvil 5SC, Rovral 50WP, Callihex 5SC, Hecwin 5SC, A.il 5SC, Til calisuper 300EC,... Currently a number of pest and disease control technologies are applied in the project area. Rate of pesticide use as recommended by the manufacturer and each drug.

iii) Implementation of integrated pest management in subproject localities

135. At present, in Phu Yen province, there is Phu Yen Agricultural Extension Center. In all districts, there are district and commune extension center and in commune, there is farmer association. The Phu Yen Province Agricultural Extension Center coordinates with other levels to regularly organize professional training courses for agricultural extension staffs, collaborators and farmers. The participants are informed about the functions, tasks and technical guidelines. At the same time, the participants learn how to detect, prevent and treat some common pests, minimize the occurrence and spread of diseases, minimize damage to farmers and raise production efficiency in the process of farming. Currently, in the subproject area, it is complied with some basic principles in pest management as follows:

• Growing and caring for the development of plants:

- Select good and suitable seedling for local conditions.

- Select healthy and qualified trees.

- Plant and maintain in accordance with proper technique so that the plants grow well with high yield.

• Regularly check and understand the growth and development process of crops, pests, weather, soil and water for timely remedial measures.

• Farmers become experts: technical knowledge and management skills of farmers need to be shared with others.

• Pest control:

- Use disease prevention measures, depending on the severity of the disease in each stage.

- Use of pesticides with correct technique

- Protecting natural enemies: Protect beneficial species to kill pests.

2. Social economic condition of subproject communes

136. Survey data on social conditions were investigated in September 2018, details are as follows:

Table 29: Details on socio-economic conditions of subproject communes

|No. |Content |Quantity/ Rate |

| | |An Nghiep |Ea Bar |Son Ha |

|1 |Dong Tron |An Nghiep |Tuy An |4.10 |

|2 |Phu Xuan |Xuan Phuoc |Dong Xuan |3.97 |

|3 |Dong Khon |Hoa Xuan Tay |Dong Hoa |4.41 |

|4 |Hon Dinh | | | |

|5 |Hoc Ram |Hoa Tan Tay |Tay Hoa |4.12 |

|6 |EaDin 1 |Ea Bar |Song Hinh |4.07 |

|7 |Gieng Tien |Son Ha |Son Hoa |4.16 |

|8 |Hoa Thuan |Son Dinh | |4.32 |

(Source: Socio-economic survey, September/ 2018)

i) Gender

137. During this socio-economic survey, the percentage of women participating in the interview was not high, only 31 people (accounting for 12.7%) out of 244 people. Men account for about 87.3%. Specific gender of respondents in the table below:

Table 31: Gender of surveyed people

|Commune |Gender |Total |

| |Male |Proportion |Female |Proportion | |

| | |(%) | |(%) | |

|An Nghiep |26 |86.7 |4 |13.3 |30 |

|Xuan Phuoc |28 |96.6 |1 |3.4 |29 |

|Hoa Xuan Tay |61 |88.4 |8 |11.6 |69 |

|Hoa Tan Tay |26 |78.8 |7 |21.2 |33 |

|Ea Bar |27 |90.0 |3 |10.0 |30 |

|Son Ha |23 |92.0 |2 |8.0 |25 |

|Son Dinh |22 |78.6 |6 |21.4 |28 |

| |213 |87.3 |31 |12.7 |244 |

(Source: Socio-economic survey, September/ 2018)

ii) Age

138. The age of humans is one of the important variables that implies the opinions and views of each generation in the same issue. In a socio-economic survey, the age of the respondent is an important factor shows the objectivity and credibility of the survey results. In this survey, the age of respondents in the subproject areas is shown as follows:

Table 32: Age of surveyed people

|Commune |Age of surveyed people |Total |

| |Under 35 |From 36 to 45 |From 46 to 55 |Above 56 | |

|An Nghiep |HH |11 |9 |6 |4 |30 |

| |% |36.7 |30.0 |20.0 |13.3 |100 |

|Xuan Phuoc |HH |6 |5 |9 |9 |29 |

| |% |20.7 |17.2 |31.0 |31.0 |100 |

|Hoa Xuan Tay |HH |12 |15 |21 |21 |69 |

| |% |17.4 |21.7 |30.4 |30.4 |100 |

|Hoa Tan Tay |HH |3 |2 |9 |19 |33 |

| |% |9.1 |6.1 |27.3 |57.6 |100 |

|Ea Bar |HH |0 |5 |18 |7 |30 |

| |% |0.0 |16.7 |60.0 |23.3 |100 |

|Son Ha |HH |2 |2 |11 |10 |25 |

| |% |8.0 |8.0 |44.0 |40.0 |100 |

|Son Dinh |HH |10 |7 |4 |7 |28 |

| |% |35.7 |25.0 |14.3 |25.0 |100 |

|Total |HH |44 |45 |78 |77 |244 |

| |% |18.0 |18.4 |32.0 |31.6 |100 |

(Source: Socio-economic survey, September/ 2018)

139. The survey results showed that the age of respondents is from 46 to 55 years (32%), followed by the age of over 56 years (77 people), accounting for 31.6%, the number of participants answered in the age group under 35 and from 36 - 45 years old, 18% and 18.4% respectively. Household respondents in communes are mostly householder or elderly people in the family. They are the ones who capture the general information about the socio-economic situation of the household as well as the local socio-economic issues. This is also the main decision-making group on key family issues, deciding the family's capacity and willingness to participate in project activities locally.

iii) Size of household

140. According to the household survey results, the average number of people is about 4.2 persons / household. The average household size ranges from 3 to 4 people/household, accounting for the highest percentage (53.3%), the number of households from 1 to 2 people accounts for 15.9%. Some households belong to single elderly households. The number of households with 5 or more people accounts for 30.8%. Households with the largest population size are 10 people / household. These are households with many children or 2-3 generations living in a house. Household size in the subproject area communes is shown in the following table:

Table 33: Size of households participating in the survey

|Commune |Member in the household |Total |

| |From 1 to 2 people |From 3 to 4 people |Above 5 people | |

|An Nghiep |HH |1 |21 |8 |30 |

| |% |3.3 |70.0 |26.7 |100 |

|Xuan Phuoc |HH |0 |22 |7 |29 |

| |% |0.0 |75.9 |24.1 |100 |

|Hoa Xuan Tay |HH |1 |41 |27 |69 |

| |% |1.4 |59.4 |39.1 |100 |

|Hoa Tan Tay |HH |0 |25 |8 |33 |

| |% |0.0 |75.8 |24.2 |100 |

|Ea Bar |HH |0 |23 |7 |30 |

| |% |0.0 |76.7 |23.3 |100 |

|Son Ha |HH |0 |19 |6 |25 |

| |% |0.0 |76.0 |24.0 |100 |

|Son Dinh |HH |3 |12 |13 |28 |

| |% |10.7 |42.9 |46.4 |100 |

|Total |HH |5 |163 |76 |244 |

| |% |2.0 |66.8 |31.1 |100 |

(Source: Socio-economic survey, September/ 2018)

3. Ethnic composition

141. The communes with ethnic minority people participating in the survey are Xuan Phuoc, Hoa Tan Tay, Ea Bar, Son Dinh communes, the ethnic minority groups here are mainly Cham and Khmer, the lives of ethnic minority households face many more difficulties compared to the Kinh group, as follows:

Table 34: Ethnic minority composition of respondents

|Commune |Ethnic composition |Total |

| |Kinh |Khmer |Cham |Other | |

|An Nghiep |HH |30 |0 |0 |0 |30 |

| |% |100 |0.0 |0.0 |0.0 |100 |

|Xuan Phuoc |HH |22 |0 |7 |0 |29 |

| |% |75.9 |0.0 |24.1 |0.0 |100 |

|Hoa Xuan Tay |HH |69 |0 |0 |0 |69 |

| |% |100 |0.0 |0.0 |0.0 |100 |

|Hoa Tan Tay |HH |32 |1 |0 |0 |33 |

| |% |97.0 |3.0 |0.0 |0.0 |100 |

|Ea Bar |HH |28 |2 |0 |0 |30 |

| |% |93.3 |6.7 |0.0 |0.0 |100 |

|Son Ha |HH |25 |0 |0 |0 |25 |

| |% |100 |0.0 |0.0 |0.0 |100 |

|Son Dinh |HH |12 |1 |14 |1 |28 |

| |% |42.9 |3.6 |50.0 |3.6 |100 |

|Total |HH |218 |4 |21 |1 |244 |

| |% |89.3 |1.6 |8.6 |0.4 |100.0 |

(Source: Socio-economic survey, September 2018)

4. Education level

142. Education level of people which answered in the interview is very important because it is the factor that decides the accuracy of the survey. They are the informants providing answers to the investigators' questions and returning the questionnaires, so there must be a certain level to be aware of the issues and can answer the related questions. According to the survey results, the educational level of the respondents is mainly concentrated in the secondary group (40.2%), the primary group (29.5%), and significantly the college / university group accounts for 9.0% showed that the education level of householders in the survey area has been improved. Specifically, the information on the educational attainment of respondents according to each commune of the subproject is shown in the following table:

Table 35: Education level of surveyed people

|Commune |Never go to school |Primary |

| | |school |

| |Agriculture |Aquaculture |

| |Under 32 million|From 32 to 58 |From 58 to 76 |From 76 to 112 |Over 112 million| |

| |VND |million VND |million VND |million VND |VND | |

|An Nghiep |HH |8 |5 |4 |7 |6 |

|An Nghiep |HH |1 |27 |0 |

|An Nghiep | 2,530 | 2,545 | 3,040 | 7,482 |

|Xuan Phuoc | 878 |0  | 1,927 | 14,109 |

|Hoa Xuan Tay | 3,132 | 6,350 | 3,823 | 13,593 |

|Hoa Tan Tay | 950 | 3,130 | 1,189 | 3,948 |

|Ea Bar | 8,581 | 12,833 | 5,296 | 17,206 |

|Son Ha | 1,620 | 2,333 | 1,408 | 9,041 |

|Son Dinh | 3,800 | 5,333 | 5,040 | 12,400 |

(Source: Socio-economic survey, September/ 2018)

143. Water source for daily life: Clean water is one of the criteria to assess the development and civilization of the people, one of the important criteria in the implementation of new rural areas. According to the results of the socio-economic survey, households participating in the survey mainly use daily-life water for dug wells / drilling (96.1%). Specific information on water sources used in daily household activities in the following table:

Table 40: Water source used for eating and daily activities of households

|Commune |Tap water/Clean water |Digging well |Drilling well | Total |

|An Nghiep |HH |2 |25 |3 |30 |

| |% |6.7 |83.3 |10.0 |100.0 |

|Xuan Phuoc |HH |0 |28 |1 |29 |

| |% |0.0 |96.6 |3.4 |100.0 |

|Hoa Xuan Tay |HH |2 |14 |53 |69 |

| |% |2.9 |20.3 |76.8 |100.0 |

|Hoa Tan Tay |HH |2 |24 |7 |33 |

| |% |6.1 |72.7 |21.2 |100.0 |

|Ea Bar |HH |0 |28 |2 |30 |

| |% |0.0 |93.3 |6.7 |100.0 |

|Son Ha |HH |2 |23 |0 |25 |

| |% |8.0 |92.0 |0.0 |100.0 |

|Son Dinh |HH |1 |18 |9 |28 |

| |% |3.6 |64.3 |32.1 |100.0 |

|Total |HH |9 |160 |75 |244 |

| |% |3.7 |65.6 |30.7 |100.0 |

(Source: Socio-economic survey, September/ 2018)

144. Toilet. According to socio-economic survey results, 70.1% of households own septic or semi-septic toilets. This rate is high in Son Ha commune (100%), it is understood that this is a mountainous commune, but it is quite benefited from sustainable poverty reduction programs, Program 135 and rural clean water programs. However, 8.6% of the surveyed households do not have toilets mainly in Son Dinh commune, Xuan Phuoc is also a mountainous commune with many difficulties, and the surveyed households are mainly Ethnic minorities. Therefore, the habit of using toilets is also a factor that increases the proportion of households without toilets. Specific types of household toilets are shown in the table below:

Table 41: State of using toilet of household

|Commune |Septic toilets |Rough toilets |Simple toilet in the |No toilet |Total |

| | | |garden | | |

|An Nghiep |HH |17 |11 |2 |0 |30 |

| |% |56.7 |36.7 |6.7 |0.0 |100.0 |

|Xuan Phuoc |HH |19 |1 |1 |8 |29 |

| |% |65.5 |3.4 |3.4 |27.6 |100.0 |

|Hoa Xuan Tay |HH |57 |9 |2 |1 |69 |

| |% |82.6 |13.0 |2.9 |1.4 |100.0 |

|Hoa Tan Tay |HH |27 |5 |1 |0 |33 |

| |% |81.8 |15.2 |3.0 |0.0 |100.0 |

|Ea Bar |HH |18 |8 |3 |1 |30 |

| |% |60.0 |26.7 |10.0 |3.3 |100.0 |

|Son Ha |HH |25 |0 |0 |0 |25 |

| |% |100.0 |0.0 |0.0 |0.0 |100.0 |

|Son Dinh |HH |8 |8 |1 |11 |28 |

| |% |28.6 |28.6 |3.6 |39.3 |100.0 |

|Total |HH |171 |42 |10 |21 |244 |

| |% |70.1 |17.2 |4.1 |8.6 |100.0 |

(Source: Socio-economic survey, September/ 2018)

5. Gender issues in the subproject area

i) Women's participation in management

145. According to the evaluation of functional agencies, the role and position of women in Phu Yen province has been increasingly raised, the percentage of women participating in the fields has been increasing. Women's participation in managerial and leadership positions has been strengthened, gradually reducing the gender gap in the political field. According to the report of the Department of Labor, Invalids and Social Affairs of Phu Yen province, in the period (2011-2016), the percentage of female leaders in the Party, mass organizations, provincial departments and agencies increased. compared with the previous term: there are 9/52 women participating in the Party Executive Committee, accounting for 17.31%, increasing 10.04%; 14 out of 50 women are representatives of the provincial People's Council; female leaders at departments, branches accounted for over 18%; the team holds the position of head, deputy head and equivalent accounts for more than 24% ... Also from 2012 to now, the percentage of women participating in the XIV National Assembly is 1/6, accounting for 16.6%. Female delegates of the 2016-2021 term council of the province 14/50 people, accounting for 28%; district level 60/295 people, accounting for 20%; commune level 736 / 2,944 people, accounting for 25%…[1].

ii) Gender issues in social association

146. The survey results show that the percentage of men and women who participate equally in local community activities is relatively high, above 50%. However, in activities, men are still more involved than women from community meetings, training in production and participation in activities of local socio-political organizations. In fact, because men still stand in the name of the householders, if the invitation is not invited exactly name, most men will be the participants of the meeting. The women only attend meetings when the husband / men absent or the householder only participates in women's associations such as Women's Union, women's interest groups. Meanwhile, other socio-political organizations such as Farmer's Association, Fatherland Front...the proportion of male participation is higher.

Table 42: Gender in local community participation (%)

|Participate in community work |Both are the |More men |More women |

| |same | | |

|Participate in community meetings |51.6 |35.8 |12.6 |

|Participate in production training |52.2 |31.2 |16.6 |

|Activities of socio-political organizations |50.9 |25.2 |23.9 |

(Source: Socio-economic survey, September/ 2018)

iii) Women in employment, economic development

147. Accounting for over 50% of rural labor, it can be said that the potential and advantages of women participating in economic development in Phu Yen province are very large ... The rate of trained female workers increases steadily over the years. In 2011 it reached 41.4%, by 2013 it was 48.2%; The proportion of women with university and college degrees accounts for 36.5%. In recent years, Phu Yen province has many programs to support women in economic development, job creation, and income growth, such as actively exploiting capital from banks to support women, especially women in rural, mountainous and disadvantaged areas, with a total outstanding loan of over VND 1,357 billion / 48,366 households; new development of 4,587 saving credit women groups, creating conditions for difficult women to borrow investment in production, cultivation and breeding[2]. Accordingly, the unemployment rate among female workers accounted for 1.33%, lower than the male group (1.82%) and the overall rate of the province (1.59%)[3]. The localities in the subproject area are all rural areas, the main production activities are agriculture. The agricultural labor structure still accounts for a high proportion, including the female labor force. Therefore, it is necessary to consider the role of women in employment and to enhance their status, their voice in society as well as in decisions.

iv) Division of labor by gender

148. The survey results show that the production activities in the family are not significantly different, such as cultivation and livestock, with the highest rates of both equal 87.3% and 72.4%. Meanwhile, other activities such as afforestation, forest product exploitation, aquaculture ..., the rate of male participation is higher (nearly 50%). Activities that are far away or employed are also mostly undertaken by men. In contrast, home-based services are mostly undertaken by women.

149. Jobs such as child care, housework, house cleaning are mostly undertaken by women, with only a small percentage of men responding. This feature is quite common in rural communes in Vietnam in general and in Phu Yen in particular.

Table 43: Division of labor by gender in production and living (%)

|Production activities |Both are the |More men |More women |

| |same | | |

|Cultivation (rice, upland crops) |87.3 |7.1 |5.6 |

|Breeding |72.4 |20 |7.6 |

|Planting / tending / protecting forests |46.1 |46.4 |7.5 |

|Forest exploitation |47.7 |45.3 |7 |

|Catching and aquaculture |46.2 |47.6 |6.2 |

|Worker / hired employee |45.6 |43.8 |10.6 |

|Business/ trade |20.7 |8.6 |70.7 |

|Working far away from home (not often at home) |41.1 |44.1 |14.8 |

|Activity in the family |  |  |100 |

|Child / child care |20.6 |12 |67.4 |

|Cleaning the house |27.5 |1.9 |70.6 |

|Cooking / housewife |10.4 |1.5 |88.1 |

(Source: Socio-economic survey, September/ 2018)

v) Gender in family decision making

150. Looking at the survey results on gender roles in family decisions, men still play a main role in decisions such as spending large amounts, deciding career orientation for children as well as in production investment. Although women are thought to have made significant progress in terms of social and economic status, gender inequality in family decisions remains a barrier in rural areas, especially in places where income more depends on men.

Table 44: Gender in making decision in family (%)

|Family decision-making |Both are the |More men |More women |

| |same | | |

|Decision on big family expenditures (shopping for valuable assets, weddings ....) |60 |33,1 |6,9 |

|Decision on child's education, career choices |37,7 |55,1 |7,2 |

|Decision on investment and production |56,1 |28,3 |15,6 |

(Source: Socio-economic survey, September/ 2018)

6. Ethnic minorities in the subproject communes

151. Ethnic minorities in Phu Yen province are 58,012 people (13,589 households), accounting for about 6.6% of the province's population) with 31 ethnic groups, mainly Ede, Cham, Ba Na, and Tay, Nung, Dao, Thai, ... Ethnic minority mountainous areas of Phu Yen province have 3 mountainous districts (Son Hoa, Song Hinh, Dong Xuan) and 9 mountainous communes of 4 mountainous districts and towns (Tay Hoa, Phu Hoa, Tuy An district and Song Cau town). There are 45 communes and towns in the mountainous area, of which 11 communes are in Song Hinh district, 14 communes in Son Hoa district, 11 communes in Dong Xuan district, 4 communes in Tay Hoa district, 3 communes in Tuy An district, 1 commune in Phu Hoa district and 1 commune in Song Cau town. In the mountainous ethnic minority areas of the province, there are 16 extremely difficult communes and villages with investment in Program 135 approved by the Prime Minister since 2017; 02 poor districts (Dong Xuan and Song Hinh) are partially invested in policies under the Resolution No. 30a / 2008 / NQ-CP of the Government.

152. In general, the economic life of ethnic minority people has many difficulties, the poverty rate is high in some subproject districts such as Son Hoa, Song Hinh and Dong Xuan...

Table 45: Poverty situation of ethnic minority people in the districts of the subproject

|No. |District, city |Total number of EM households |The number of poor EM |

| | | |households |

|An Nghiep (Tuy An) |5,030 |0 |0 |

|Xuan Phuoc (Dong Xuan) |9,612 |410 |4,5 |

|Hoa Xuan Tay (Dong Hoa) |13,712 |25 |0,18 |

|Ea Bar (Song Hinh) |5,486 |1,866 |30,2 |

|Hoa Tan Tay (Tay Hoa) |8,750 |0 |0 |

|Son Ha (Son Hoa) |8,910 |305 |3,42 |

|Son Dinh (Son Hoa) |1,960 |408 |20,8 |

(Source: Socio-economic survey, September/ 2018)

7. Assessment of community impacts on HIV / AIDS and intervention measures

i) Understanding about HIV/AIDS:

153. According to the socio-economic survey results, 60.1% of respondents have the right awareness about HIV / AIDS as "human immunodeficiency syndrome", 5.2% of respondents do not know what HIV / AIDS is, and 34.7% of respondents said that this is a pathogenic bacterium.

Table 47: Understand the nature of HIV/AIDS

|What is HIV/AIDS |Rate (%) |

|Bacteria cause disease |34.7 |

|Immunodeficiency syndrome in humans |60.1 |

|Do not know |15.2 |

|Total |100 |

(Source: Socio-economic survey, September/ 2018)

ii) Awareness about the way of transmission:

154. The survey results show that people's awareness of HIV / AIDS transmission is quite good. Proportion of respondents who know transmission by sharing needles and unsafe sex is high, all over 90%. However, there are still some incomplete perceptions when HIV / AIDS is transmitted through mosquito bites, spread by sharing equipment… .

Table 48: Awareness about the way of HIV / AIDS transmission

|The path of disease transmission |Rate (%) |

|Sharing needles with others |98.6 |

|Sharing cups, bowls with people with HIV |32.8 |

|Mosquito bite or insect bite |28.9 |

|Having sex with out condoms |93.7 |

|Pregnant mother gives her child |68.7 |

|Others |35.4 |

(Source: Socio-economic survey, September/ 2018)

iii) Awareness of preventive measures:

155. When asked, over 95% said that they need to live monogamy and use condoms when having sex with strangers and prostitutes. 77.7% prevented by using separate needles and syringes in all cases. However, some still think that it is necessary to isolate people with HIV / AIDS and not share the same bowls with patients. This is an inadequate awareness of how to prevent it from being propagated, providing adequate information.

Table 49: Awareness of people about HIV/AIDS (%)

|Preventive measure |Rate (%) |

|Monogamy |95.2 |

|Living isolated with HIV/AIDS people |23.7 |

|Use condoms when having sex |97.8 |

|Use needle separately in any case |77.6 |

|Do not shake hands with the patient |10.0 |

|Do not share the bowl with the sick person |28.7 |

|Others |7.5 |

(Source: Socio-economic survey, September/ 2018)

156. In general, the awareness of the majority of people about HIV / AIDS is correct, but there is still a certain percentage that does not understand the nature, the source of transmission as well as preventive measures. Therefore, in the process of implementing the project, it is necessary to pay attention to the propagation and dissemination of HIV / AIDS knowledge to the people in the community, especially in the surrounding areas of the work area, with temporary workers in construction time.

5. Sensitive subjects

157. The subproject is carried out in 7 communes, scattered across 6 districts of Phu Yen province, in the process of deployment will have an impact on the environment and people's livelihood activities. direction. There are 6/8 works to be noted because the impact in the reservoir area when repairing and improving dam safety is presented in the table below

Table 50: Summary of the status of sensitive receptors

|No. |Works |Works, description |Status of the works |

|1 |Dong Khon reservoir |[pic] |Do Nhu Day Primary School is located right|

| | | |next to the materials transportation route|

| | | |of Hon Dinh and Dong Khon Reservoir. |

| | | |The school has a total of 12 classes with |

| | | |a total of 445 students and 31 teachers. |

| | | |The current status of the route passing |

| | | |the school has no traffic signs. The road |

| | | |has been concreted. |

| | |[pic] |Currently, Nguyen Van Phu households are |

| | | |renting an area of ​​the lake to raise |

| | | |lamprey. With the scale of 16 cages. |

| | | |Currently the fish has been raised for |

| | | |about 4 months. |

|2 |Hoan Dinh reservoir |[pic] |The local bridge has been built over 20 |

| | | |years. The status quo is no longer safe. |

| | | |The road connecting the two ends of the |

| | | |bridge is a uniform soil road, muddy when |

| | | |rains occurs. |

| | | |The bridge over the stream is the only |

| | | |route for people to transport acacia and |

| | | |agricultural products and is an |

| | | |inter-village route of Hoa Xuan Tay |

| | | |commune. However, the density of traffic |

| | | |through the bridge is very little. |

|3 |Dong Tron reservoir |[pic] |Current status of lighting grid |

| | | |electricity line and electricity serve |

| | | |spillway installation on the dam crest |

| | | |toward downstream. There are 6 electric |

| | | |poles on the dam crest with a height of |

| | | |4.1m. |

|4 |Ea Din1 reservoir |[pic] |The management road and material |

| | | |transportation road through the Ea Din1 |

| | | |reservoir, Dam is also an important |

| | | |transportation route of Ea Bar commune. At|

| | | |present, this route is the route to |

| | | |transport agricultural and forestry |

| | | |products of the farms in the subproject |

| | | |area. The road has been concreted. |

|5 |Hoc Ram reservoir |[pic] |The route of transportation of raw |

| | | |materials of Hoc Ram reservoir goes |

| | | |through the National Road 1A, and Le Trung|

| | | |Kien High School, Dong Hoa District with |

| | | |the scale of 37 classes with 1600 students|

| | | |and 97 teachers and teachers; Nguyen Chi |

| | | |Thanh Secondary School with a scale of 16 |

| | | |classes with 450 students and more than 30|

| | | |teachers, Le Thanh Ton High School with a |

| | | |scale of 36 classes with 1450 students and|

| | | |85 teachers. and Xuan Long Pagoda often |

| | | |focuses many Buddhists on holidays, New |

| | | |Year and the first day and 15 of the lunar|

| | | |month. |

|6 |Gieng Tien reservoir |[pic] |The management road and material |

| | |The management road and material transportation road through the |transportation road through the through |

| | |through Gieng Tien Dam is also an important transport route. And |Gieng Tien Dam is also an important |

| | |sugar cane farmers in the area still use this route to transport |transport route. And sugar cane farmers in|

| | |sugarcane materials. |the area still use this route to transport|

| | | |sugarcane materials. The current condition|

| | | |of the road is uniform earth road, flanked|

| | | |by rice fields of the people. |

|7 |Phu Xuan reservoir |Near the area of ​​Phu Xuan reservoir, there are no sensitive |There is no specific subject |

| | |constructions. | |

|8 |Hoa Thuan reservoir |Near the area of ​​Hoa Thuan reservoir, there are no sensitive |There is no specific subject |

| | |constructions | |

CHAPTER 5: ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT

1. Types and scale of impacts

158. The Subproject to be implemented in the area will cause certain impacts during the construction stage, however, the impact level is not large and can be minimized. Upon the completion of construction, the residential areas in the 8 reservoirs will be benefited from the restoration of public services/facilities, which promote economic growth and access to social services. Important flood control structures that are roads and dams to be repaired, reinforced, rehabilitated will increase the safety for people and property in bad weather conditions.

159. Potential negative impacts are identified and screened at each subproject component from the preparation phase to the operational phase and classified according to the nature of the construction works. Most negative impacts are temporary, local and reversible due to small to medium-sized construction scale of the works. Impacts can be minimized by applying appropriate technologies and specific mitigation measures with the close monitoring of the Consultant, PPMU and local communities. The table below defines the levels of negative impacts based on the levels of waste generation by construction activities [4].

Table 51: The criteria for the magnitude of negative impacts

|Impact/Level |Small |Moderate |Large |

|Waste water discharge (domestic |Exceeding the technical regulation|Exceeding the technical regulation|Exceeding the technical regulation|

|and industrial wastewater) |on waste from 1.1 times to less |on waste from 1.1 times to less |on waste to more than 3 times and |

| |than 1.5 times and the discharge |than 1.5 times and the discharge |the discharge volume is more than |

| |volume is less than 5 m3/day |volume is less than 5 - 10 m3/day |10 m3/day |

|Dust and Emissions |Exceeding the standard of 1.1 |Exceeding the standard of 1.5 |Exceeding the standard of 3 times |

| |times to less than 1.5 times with |times to less than 3 times with |with the emission level more than |

| |the emission level of less than |the emission level of less than |5000 m3/hour |

| |500 m3/hour |500 – 5000 m3/hour | |

|Noise |Exceeding the standard of 2 to 5 |Exceeding the standard of 5 to 10 |Exceeding the standard of 10 dB |

| |dB |d | |

|Vibration |Exceeding the standard of 2 to 5 |Exceeding the standard of 5 to 10 |Exceeding the standard of 10 dB |

| |dB |dB | |

|Domestic solid waste: |Generate less than 1,000 kg / day |From 1,000 to 2,000 kg / day |Arise more than 2,000 kg / day |

|Hazardous waste |Generate less than 100 kg / day |Generates 100-600 kg / day |Arise more than 600 kg / day |

|Fire and oil spill |Less than 2,000 kg |2,000 to 10,000 kg |More than 10,000 kg |

247. Potential negative environmental and social impacts are also divided into types such as direct, indirect, short-term, long-term and cumulative impacts.

Direct Impact: direct impact occurs through the direct interaction of a subproject activity with environmental, social or economic components.

Indirect impact: The indirect impacts on the environment and society are the impacts that are not a direct result of the subproject, which is often created later, or as a result of a complex. Indirect effects are also known as secondary effects, or even tertiary effects.

Cumulative impact: is an impact created as a result of a combination of subproject along with other projects that cause the associated impact. These impacts occur when the incremental impact of the subproject is combined with the cumulative effects of past, present, or future projects that have the potentiality for predictability.

Temporary impacts: are the effects occurring during the construction or within a short time after construction.

Long-term impacts: are the effects that arise during the construction process but most of the results appear in the operational phase and can last for decades.

2. Potential positive environmental and social impacts

160. Eight reservoirs under the subproject of dam rehabilitation and safety improvement (WB 8) in Phu Yen province in 7 districts to serve promotion of agriculture and forestry production, diversification of crop for mountainous area with difficult condition through ensuring of the need of water for cultivation, living and production which is linked to natural disaster mitigation measures, aimed to reduce poverty in the project area.

161. To ensure safety for community in communes in the downstream area of eight existing reservoirs, the upgrading and repairing of downgraded reservoirs play an important meaning in ensuring safety of dam and reservoirs and ensuring not occurring risk to 3,414 households in the downstream area.

162. In addtion, the implementation of the subproject will directly ensure the supply of water for 4,509.05 ha of cultivation area of rice and crop, contribute to increasing quality of cultivation soil, prevent erosion and desertification, reduce pollution of water resource to contribute to improvement of social-economic condition in the subproject area, support in implementing National target programs in six subproject communes, including National Target Program on mitigating and adapting climate change; Water Resources Development Strategy up to 2020 with a vision to 2050; National Strategy for Rural Clean Water Supply and Sanitation up to 2020; Program on socio-economic development in mountainous areas up to 2020; National Target Program to build new rural areas

163. Together with the improvement of access roads and operation road of dam and reservoir, the subproject also contributes to improvement of travelling condition in the project implementation area, facilitate trade activities and promote local economic development.

164. Support accessibility for vulnerable communities: With many policies and activities ensuring that affected parties will be informed, fair accessed to the subproject and the benefits of the subproject, the subproject will strengthen social activities, facilitate vulnerable groups to participate in project activities, ensure that the projects will bring maximum benefits to the community under current conditions and reduce adverse impact on them.

165. In addition, after being repaired and upgraded, the landscape of the area around the reservoir will be more open, contributing to improvement of the overall landscape of the area. This contributes to the promotion of tourism services in the reservoir area and head works.

1. Potential negative social impacts

166. Although the implementation of the subproject will not increase the flooded area compared to the present status and will not increase the reservoir capacity, subproject’s activities are related to land acquisition, site clearance and excavation, etc. Therefore, negative impacts from the implementation of subproject should be assessed and evaluated to propose appropriate mitigation measures.The negative impact of the project is identified, analyzed, and evaluated based on the scope of the project, the recipient and the timeframe. Impacts are analyzed in three different project implementation phases: i) pre-construction phase; ii) the project implementation stage; and iii) the operational stage of the project. Impacts will also be considered by impact type: direct impact, indirect impact, temporary impact, long term impact. The level of impact of the project depends on two main factors: impacts that may arise from project activities and the recipient of these impacts.

2. Assessment and forecasting of impacts during the process of preparing the subproject

167. Because the subproject works are scattered in different areas, With the scale, the scope of each works is not large and the duration of the construction is not long . Therefore, the environmental and social issues in this period are mainly considering environmental factors in the technical design process of the subproject, land acquisition., land clearance, demining, clearing the site to prepare for construction. The impacts are analyzed as follows:

Table 52: Sources of impact during construction preparation phase

|Source of impact related to waste |

|Demolition, Clearance |Noise, peeled-off herbs |In subproject area |

|Preparation of constrution site |Dust, waste (packings, papper, wood chips) |In subproject area |

|Source of impact non-related to waste |

|Occupation of land and site clearance |Occupation of agricultutre and forestry land |In subproject area, Ninh Hoa |

| | |management unit of protection |

| | |forest |

|Levelling of construction site |Noise |In subproject area |

|Landmines clearance |Bombs and mines |In subproject area |

a. Assessing the suitability of the project to the natural, socio-economic conditions of the subproject area:

168. The selection of location, design, and planning of the subproject is made on the basis of evaluation of the objectives of the subproject in accordance with the natural, socio-economic conditions of the subproject area. The subproject has studied the plan and scale capacity, suitable technology with with the area of ​​land occupied to maximize the efficiency of the project's land use and minimize the impact on the current resources, in the following aspects:

For natural and environmental conditions: Based on the results of the assessment of the land use status of the subproject, the suitability of the subproject with the natural and environmental conditions, including:

- Transportation: Approach to subproject is quite convenient by route National Highway, provincial road, inter-district, inter-commune, inter-village roads ... create favorable conditions for the transportation of raw materials for subproject construction..

- The current status of land use: The land area of ​​the subproject is largely an area of ​​the reservoir bed, Traffic land belong the management road … Therefore, it is convenient for site clearance and investment in construction of work items of the subproject.

- Physical environment components: According to the results of the current status assessment of environmental components of the subproject area as follows:

o In the subproject area, there are no signs of pollution and no significant sources of environmental pollution exist for the physical environment components and have not been much affected by the economic activities of the subproject area.

o When compared with the allowable limit according to QCVN for the current monitoring results showed the environmental load-bearing capacity of the subproject area is high, therefore, it will create significant advantages for the development of the subproject.

- Ecosystems and biodiversity: Ecological characteristics of the area are production forest ecosystems interspersed with agricultural land, The major crops are acacia, eucalyptus, coffee, rice and vegetables, … with average productivity. In addition, the subproject land area is not within the scope of biodiversity conservation areas, biosphere reserve areas and there are no objects on the list of protection and conservation, etc, … Therefore the impacts on the ecosystem are not large.

- Socio-economic conditions of the subproject area: The subproject was also studied with the aim of limiting the impacts on the natural and socio-economic environment in order to promote beneficial factors and limit adverse factors to ensure objectives and functions and tasks of the project, specifically:

o –Socio-economy: Within the planning area of ​​the project, there are no architectural works and technical infrastructure subject to relocation and clearance., At the same time not resettled people, … Therefore, the project is assessed in accordance with socio-economic objectives.

o Livelihood: The acquisition of land area is mainly belonging to the reservoir and the roads are belong the management roads so they do not affect residents and their livelihood. At the same time, from the downstream dam area of ​​the subproject not available any significant socio-economic factors affected, the level of damage due to the right to use water after the dam is minimal.

b) Land acquisition and clearance

169. Because the subproject will only repair and upgrade existing works, The material storage area is expected to be located in the area of ​​the work protection corridor, so the level of impacts to the households is negligible. Most of these households build and produce on the corridor of protection of irrigation works that the People's Committee of Phu Yen has stipulated, all affected households have judeligible valid residential land. The implementation of the subproject will permanently acquired the total of 49,274.73 m2 belonged to 16 households and 5 organizations that are People's Committees of communes, in which::

• Affected land of households includes:

- Land for 2 crop rice cultivation: 771,29 m2

- Land for other annual crops: 1.533,66 m2

- Land for perennial crops: 172,35 m2

- Production forest land: 17.784,36 m2

- Rural residential land: 36,17 m2

• Public land managed by Commune People's Committee: 27,639.3 m2 including 12,428.6 m2 of other annual crop land and 15,146 m2 of unused hilly land and 64.7 m2 of unused land.

170. In addition, the subproject will temporarily acquired 14,500 m2 to make landfills. The entire land belongs to public land managed by the People's Committees of communes. Area of camps and aggregate yards will be used in the dam corridor area of the dam management board. The land mine of the project will be purchased at the mines that have been licensed and used by competent authorities.

171. There are 15 households that will be affected the trees and crops including: rice, sugarcane, eucalyptus and acacia. No structures are affected by the subproject.

172. There is no affected household that is severely affected, losing more than 20% of arable land and houses or from 10% for vulnerable households, No households are in the vulnerable group.

Table 53: Statistics of impacts and scope of land acquisition

|No. |Works |Communes | | | |

| | |

| |Vehicle weight < 3.5 T |Vehicle weight 3.5 ÷ 16T |

| |In City |rural area |Freeway |In City |rural area |Freeway |

|Dust |0.2 |0.15 |0.3 |0.9 |0.9 |0.9 |

|SO2 |1.16 S |0.84 S |1.3 S |4.29 S |4.15 S |4.15 S |

|NOx |0.7 |0.55 |1 |1.18 |1.44 |1.44 |

|CO |1 |0.85 |1.25 |6 |2.9 |2.9 |

|VOC |0.15 |0.4 |0.4 |2.6 |0.8 |0.8 |

Source: Paragraph 77 Page 3-53 Book 1 of the document: “Assessment of sources Air, Water, and Land pollution a guide to rapid source inventory techniques and their use in formulating environmental control strategies” Authors: Alexander P. Economopoulos thuộc World health organization, Geneva, , 1993

173. Through the table above, we determine the load of pollutants in the exhaust gas of motor vehicles according to the average coefficient. With the workload in the preparation stage, the subproject uses trucks with a payload of 7 - 10 tons to operate, it is estimated that one truck will transport about 4 turns a day, so the number of trucks / day in the subproject area as follows:

Table 56: Number of vehicles transporting cleared vegetation

|Reservoir | Number of truck transport |number of turns truck every day |

|Phu Xuan |2 |8 |

|Dong Tron |2 |8 |

|Hon Dinh |2 |8 |

|Gieng Tien |1 |4 |

|Dong Khon |2 |8 |

|Hoc Ram |2 |8 |

|EaDin 1 |1 |4 |

|Hoa Thuan |1 |4 |

174. The distance traveled by vehicles in area of ​​each reservoir is about 3 km (1 turn go and 1 return). So, the pollutant load of transport means operating in the subproject preparation stage can be calculated as shown in the following table:

Table 57: Pollutant load emissions of means of transport of transportation of cleared vegetation

|Pollutant |Pollutant load (kg/1km/day) |

| |Phu Xuan |

| |Phu Xuan |Dong Tron |Hon Dinh |

| | | |Dust |

|height of the road surface compared to the |h |m |0.5 |

|surrounding ground | | | |

|average wind speed in area |u |m/s |1,7 |

|ust diffusion coefficient in the z |[pic] |- |0.53x0.73 |

|direction, determined by the formula z | | | |

|Concentration of pollutants in the air is |C |mg/m3 |0.23 |

|from the center of the road x = 10m | | | |

| | | |Dust |

|height of the road surface compared to the |h |m |0,5 |

|surrounding ground | | | |

|average wind speed in area |u |m/s |1,7 |

|ust diffusion coefficient in the z direction,|[pic] |- |0,53x0,73 |

|determined by the formula z | | | |

|Concentration of pollutants in |C |

|the air is from the center of | |

|the road x = 10m | |

| |Body |Bough |Leaf |Roots |Grass under the |Total |

| | | | | |tree | |

|Shrubs, weeds |0.065 |0.054 |0.05 |0.03 |- |0.199 |

|Rich forest tree |- |16.53 |3.011 |7.172 |1.575 |28.287 |

|Medium forest tree |  |11.02 |2.007 |4.781 |1.05 |18.858 |

|Poor forest trees |  |7.714 |1.405 |3.347 |0.735 |13.201 |

|Scattered the wood trees |2.378 |2.204 |0.401 |0.956 |0.84 |6.78 |

Table 62: The amount of biomass generated during the preparation stage

|Reservoir |Biomass type |Area |Biomass coefficient |Biomass volume (kg) |

| | |(m2) |k | |

|Gieng Tien |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |5,365.62 |0.199 |1,067.76 |

|Dong Tron |Scattered the wood trees (planting acacia and |17,144.6 |6.780 |116,240.39 |

| |eucalyptus) | | | |

| |Shrubs, weeds |20,483 |0.199 |4,076.12 |

|Ea Din1 |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |4,300 |0.199 |855.70 |

|Hoa Thuan |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |3,000 |0.199 |597.00 |

|Phu Xuan |Scattered the wood trees (planting acacia and |172.35 |6.780 |1,168.53 |

| |eucalyptus) | | | |

| |Shrubs, weeds |14,168.8 |0.199 |2,819.59 |

|Hon Dinh |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |4,300 |0.199 |855.70 |

|Hoc Ram |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |4,639.76 |0.199 |923.31 |

|Dong Khon |Scattered the wood trees (planting acacia and |0 |6.780 |0.00 |

| |eucalyptus) | | | |

| |Shrubs, weeds |4,700 |0.199 |935.30 |

i) Soci0-economc impacts

175. In fact, according to the survey results, there are activities in the area of ​​livelihoods and economic development (coffee, maize, sweet potato, rice cultivation ...), however only small scale. Therefore, overall assessment, the impact on people's activities and economic development is not high. In addition, the subproject has a satisfactory compensation plan after reaching agreement with the affected population (About 16 households lose land)..

176. In addition, during the construction of site clearance, due to the concentration of a part of construction workers, indigenous people can benefit from the provision of simple labor and trading of necessities for living.

177. The subproject is also studied with the aim of limiting impacts on the natural and socio-economic environment in order to promote beneficial factors and limit adverse factors to ensure objectives and functions and tasks of the subproject, specifically:

- –Socio-economy: Within the planning area of ​​the subproject, there are no architectural works and technical infrastructure subject to relocation and clearance, and not resettlement, etc. … therefore, the project is evaluated in accordance with socio-economic objectives.

- Livelihood and economy: Land acquisition is mainly of the land belonging to the reservoir and traffic soil belong management road so it has no impact on residents and their livelihood. At the same time, from the downstream dam of the subproject no significant socioeconomic factors were affected, The level of damage caused by the right to use water after the dam is minimal.

3. Potential Impacts during construction phase

1. Source of impacts

178. Summary of source of impact during construction phase is presented in the table below:

Table 63: Summary of source of impact during construction phase

|No |Source of impact |Impact/Waste |Level of impact |Object of impact |

|A - Source of impact related to waste | |

|1 |Construction activities: |Dust, emissions from the process of |Medium, short, |Workers, Residents |

| |Excavating |transporting construction materials are |controllable |of the project area |

| |Repair of main dam, auxiliary dam, |swept with the wind | |and |

| |overflow, flood spillways | | |Quality of the |

| |Transport of materials, waste stone and| | |surrounding |

| |soil | | |environment |

| |Operation of construction machinery on | | | |

| |site | | | |

| | |Dust, emissions from process of |Medium, short, | |

| | |transporting materials |controllable | |

| | |Dust and exhaust of transport vehicles |Medium, short, | |

| | | |controllable | |

| | |Dust and emissions are generated by |Medium, short, | |

| | |earthworks |controllable | |

| | |Dust and emissions are generated by |Medium, short, | |

| | |transporting waste rock and soil |controllable | |

| | |Dust and exhaust gas arise due to the |Medium, short, | |

| | |operation of construction machinery |controllable | |

|2 |Overflowing rainwater swept with mud |Impact on water environment |Medium, short, |Workers, Residents |

| |from the construction site | |controllable |of the project area |

| |Waste water from workers' activities. | | |and |

| |Wastewater from grease, chemicals used | | |Quality of water and|

| |in construction | | |soil environment |

| |Construction waste water | | | |

| |Drilling materials mainly consist of | | | |

| |clay powder mixed with water and add | | | |

| |bio-termitecide solution. therefore, if| | | |

| |there is no good management of | | | |

| |wastewater from drilling operations to | | | |

| |treat seepage of the dam body, it may | | | |

| |be contaminated with spillage of | | | |

| |surface water and groundwater. | | | |

|3 |Waste rock and soil from earthworks and|Impact of solid waste |Medium, short, |Quality of the |

| |construction activities; | |controllable |surrounding |

| |Domestic waste from workers' | | |environment |

| |activities; | | | |

| |Hazardous waste from related activities| | | |

|4 |Impact due to sediment flow generated |Impact on surrounding agricultural |Medium, short, |Quality of the |

| |by erosion at the construction site |cultivation areas |controllable |surrounding |

| |when there is rain | | |environment |

| |Excavated soil, stone and construction | | | |

| |materials spilled out of the | | | |

| |construction area | | | |

| |Waste disposal activities are not well | | | |

| |managed. | | | |

| |operating at land mines causing | | | |

| |spillage of soil to surround areas | | | |

|5 |Soil type in construction |Impact of dumping soil and rock in |Low, short, controllable |Quality of the |

| | |construction | |surrounding |

| | | | |environment |

|B - Source of impact unrelated to waste | |

|1 |Equipment, machines |Noise and vibration of machines and |Low, short, controllable |People in subproject|

| | |equipment | |area |

|2 |Concentration of workers at project |Impact on socio-economic conditions of |Low, short, controllable |people in the |

| |site |the area | |subproject area, |

| | | | |workers |

| | |Risks of diseases and social evils due |Low, short, controllable | |

| | |to concentration of workers. | | |

| | |Risk of gender-based violence, sexual | | |

| | |abuse and harassment, child labor use, | | |

| | |transmission of infectious diseases, | | |

| | |etc. | | |

|3 |Impact due to blocking water for |Impact on socio-economic conditions of |Medium, short, |people in subproject|

| |construction |the area |controllable |area |

|4 |Traffic |Congestion and discontinuity due to |Medium, short, |people in the |

| | |material transportation |controllable |subproject area |

| | | | |Participants in the |

| | | | |subproject area |

| | | | |traffic |

| | |Damage to transport road and public | | |

| | |works | | |

|5 |During the construction process, it may|Impacts on tomb or cultural relics |Medium, short, |Local, contractor |

| |be found tomb or cultural relics | |controllable | |

|6 |The process of transporting materials; |Impacts on livelihood and business |Low, short, controllable |Residential |

| |workers transporting materials may |activities | | |

| |cause dust, noise, conflict, borrow | | | |

| |from the business shop on the transport| | | |

| |road or areas near the project. | | | |

|7 |During the construction process, it may|Risk to health, traffic safety, labor |Low, short, controllable |Workers and people |

| |cause labor accidents, diseases; |safety, works safety | | |

| |natural disasters. | | | |

|8 |During the construction process, it may|Impact on gender equality and children |Low, short, controllable |Women and children |

| |cause lack of water that women have to | | | |

| |find alternative water resource. | | | |

| |During the construction, children can | | | |

| |travel across the project area and | | | |

| |accidents or drowning may occur with | | | |

| |children. | | | |

|9 |Demand for embankment material |Impact on material mining |Low, short, controllable |Land mine area |

|10 |The construction process will destroy |Impact on ecosystems |Low, short, controllable |Types of plants and |

| |the vegetation layer at construction | | |animals |

| |sites, soil mines and waste dumps | | | |

| |Workers gathered at the construction | | | |

| |site can cut down trees, hunt animals | | | |

| |in the lake and the subproject area | | | |

|11 |Risks and incidents during the |Incidents of labor accidents and traffic|Low, short, controllable |People, property |

| |construction process of the subproject |accidents | | |

| | |Accident caused by fire and explosion |Low, short, controllable |People, property |

| | |Risks and incidents due to natural |Low, short, controllable |People, property |

| | |disasters | | |

2. Impact on air environment

a. Arising sources

179. Activities that generate dust and emissions that can affect air quality, include: i) Excavation of soil and embankment of the works; ii) Operation of construction equipment at construction sites; iii) Operation of transport vehicles;

b. Impact assessment

180. The level of dust and air pollutants during construction of projects under the subproject depends on the demand for fuel use, excavation of soil and embankment and mobilization of machinery and equipment on construction sites. According to the subproject design documents, the main needs related to dust generation on site are listed in the following table:

Table 64: Aggregate volume of air and dust pollutant emission sources

|No. |Name of the |Volume |

| |reservoir | |

| | |Total amount of diesel fuel |Total volume of |Number of turns |

| | |consumption |excavated soil and |transported |

| | |(Liter) |backfilled soil (m3) |(turns) |

|1 |Dong Tron |142,830 |172,154.51 |1,587 |

|2 |Phu Xuan |86,490 |71,747.48 |961 |

|3 |Dong Khon |174,240 |70,584.07 |1,936 |

|4 |Ea Din 1 |20,700 |10,173.47 |230 |

|5 |Gieng Tien |195,480 |18,055.56 |2,172 |

|6 |Hoc Ram |84,870 |116,298.45 |943 |

|7 |Hon Dinh |48,780 |162,967.61 |542 |

|8 |Hoa Thuan |22,410 |12,363.13 |249 |

(Source: Project estimates)

• Dust from the transportation of construction materials swept away by the wind

181. According to the document: "Report on environmental impact assessment of component project to upgrade National Road No. 39 Vo Hoi - Diem Dien (Km91 + 000-Km107 + 522) under component C of the project of road asset management, Vietnam, pp 3-14 "estimated the emission factor of dust being swept up when cars transporting construction materials spillage on the road is 0.1 ÷ 1 g /m3.

(Source:).

182. According to the Investment Project Report, the total volume of materials to be transported during the construction period includes the following types:

Table 65: Volume of construction materials

|No. |Name of the reservoir |Unit |Volume |

|1 |Dong Tron |Ton |15,867.254 |

|2 |Phu Xuan |Ton |9,607.609 |

|3 |Dong Khon |Ton |19,361.18 |

|4 |Ea Din 1 |Ton |2,301.686 |

|5 |Gieng Tien |Ton |21,718.53 |

|6 |Hoc Ram |Ton |9,429.107 |

|7 |Hon Dinh |Ton |5,423.952 |

|8 |Hoa Thuan |Ton |2,487.51 |

183. Dong Tron reservoir: The amount of raw materials converted on an average of 1m3 is equivalent to 2.5 tons. Therefore, the total amount of bricks, cement, iron and steel, and other materials is: 15,867,254 tons, equivalent to 6,346.9 m3.

184. The total amount of dust emitted from material transport activities during this period is:

0.1×6,349.6 ÷ 1×6,349.6 = 634.96 ÷ 6,346.9 (g) = 0.635 ÷ 6.35 (kg).

185. The supply of raw materials is made based on the construction progress. The construction period of the entire subproject is 27 months, equivalent to about 810 days. Average daily dust load is: 0.0023 ÷ 0.023 (kg / day).

186. Similar to the calculation with the remaining lakes, we have the following table:

Table 66: Pollutant load of means of transport of transportation of luminescent vegetation in 1hour

|No. |Name of the reservoir |Average daily dust load |Dust load |

| | |(kg / day) |(mg/m*s) |

|1 |Dong Tron |0.0008 ÷ 0.008 |0.027 ÷ 0.27 |

|2 |Phu Xuan |0.0005 ÷ 0.005 |0.016 ÷ 0.16 |

|3 |Dong Khon |0.001 ÷ 0.01 |0.033 ÷ 0.33 |

|4 |Ea Din 1 |0.001 ÷ 0.001 |0.004 ÷ 0.04 |

|5 |Gieng Tien |0.0005 ÷ 0.005 |0.037 ÷ 0.37 |

|6 |Hoc Ram |0.0005 ÷ 0.005 |0.016 ÷ 0.16 |

|7 |Hon Dinh |0.0003 ÷ 0.003 |0.009 ÷ 0.09 |

|1 |Hoa Thuan |0.0001 ÷ 0.001 |0.004 ÷ 0.04 |

187. To assess the impact of dust and emissions due to the transport of construction materials during this period, we apply the Sutton calculation model - determine the concentration of pollutants at any point. The concentration of pollutants is calculated according to the following formula:

[pic]

Where:

- C: airborne dust concentration (mg/m3)

- E: Pollutant load from waste source (mg/m.s)

- z: height of calculation point: 1 (m)

- h: height of the road surface compared to the surrounding ground: 0,5 (m)

- u: average wind speed in area 1,7 (m/s)

- x: coordinates of points to be calculated (m)

- [pic]: ust diffusion coefficient in the z direction, determined by the formula:

[pic] = 0,53x0.73

- With x being the distance according to the blowing wind at the calculation point compared to the waste source (m)

188. Replace numbers, We calculate the concentration of dust from the transport of construction materials being swept away by the wind as follows:

Table 67: Concentrations of pollutants in the air from the transportation of construction materials swept away by the wind

|No. |Name of the reservoir |Concentration of pollutants in the air is|Concentration of pollutants in the air is|

| | |from the center of the road x = 10m |from the center of the road x = 100m |

| | |(mg/m3) |(mg/m3) |

|1 |Dong Tron |0.008 ÷ 0.08 |0.0017 ÷ 0.017 |

|2 |Phu Xuan |0.005 ÷ 0.05 |0.001 ÷ 0.01 |

|3 |Dong Khon |0.01÷ 0.1 |0.002 ÷ 0.02 |

|4 |Ea Din 1 |0.001÷ 0.01 |0.0002 ÷ 0.002 |

|5 |Gieng Tien |0.011 ÷ 0.11 |0.0023 ÷ 0.023 |

|6 |Hoc Ram |0.005 ÷ 0.05 |0.001 ÷ 0.01 |

|7 |Hon Dinh |0.003 ÷ 0.03 |0.0006 ÷ 0.006 |

|8 |Hoa Thuan |0.001 ÷ 0.01 |0.0003 ÷ 0.003 |

|QCVN 05:2013/BTNMT |0,3 |0.3 |

Source: Consulting unit

189. Compared with QCVN 05: 2013 / BTNMT, the limit value for average TSP is 0.3 mg / m3, then which is much lower, This shows that the dust from the transportation of construction materials of all 8 reservoirs at peak time is lower than the permissible limits between 10m and 100m.

• Dust and emissions from the operation of transporting vehicles

190. The total volume of raw materials to be transported is shown in Table 51. Using transport vehicles is truck 7-10 tons.

191. The pollutants being created by activities of vehicles include: Dust, SO2, NO2, CO, VOC, noise, vibration ... The load of pollutants is shown in the table below:

Table 68: Pollutant load coefficient for trucks running on roads (for 1000 km)

|Pollutant |Pollutant load for road trucks (kg) |

| |Vehicle payload 3.5 ÷ 16T |Vehicle payload> 16T |

| |In City |Out city |Freeway |

|1 |Dong Tron |1,587 |3 |

|2 |Phu Xuan |961 |2 |

|3 |Dong Khon |1,936 |4 |

|4 |Ea Din 1 |230 |1 |

|5 |Gieng Tien |2,172 |4 |

|6 |Hoc Ram |943 |2 |

|7 |Hon Dinh |542 |1 |

|8 |Hoa Thuan |249 |1 |

192. Temporarily transport time is 8 hrs / day. Estimated travel distance is about 30km (1 turn go and 1 return).

193. Thus, the dust and emissions from cars transported (applied to trucks of 3.5 ÷ 16 tons, running outside the city) are determined as the following table:

Table 70: Load of pollutants from cars transporting materials

|Pollutant |Pollutant load (mg/m*s) |

| |Dong Tron |

| |Dong Tron |

| |Dong Tron |Phu Xuan |

| | |Liter diesel |Kg/h |

|1 |Dong Tron |142,830 |19.18 |

|2 |Phu Xuan |86,490 |11.61 |

|3 |Dong Khon |174,240 |23.39 |

|4 |Ea Din 1 |20,700 |2.78 |

|5 |Gieng Tien |195,480 |26.25 |

|6 |Hoc Ram |84,870 |11.39 |

|7 |Hon Dinh |48,780 |6.55 |

|8 |Hoa Thuan |22,410 |3.01 |

Source: FS Report

Note: 1 working shift is 8 hours.

Oil density is: 0.87 kg / liter (Source: Petrolimex, 1994).

194. The load, dust concentration and emissions are summarized in the following table:

Table 73: Load of pollutants from machinery and equipment during construction

|Pollutant |Pollutant load (mg/m*s) |

| |Pollution coefficient (kg / ton of fuel) (*): TSP: 4,3; SO2: 20S (S=0,25%); NOx: 65; CO: 10 |

| |Dong Tron |

| |Phu Xuan |

| |Phu Xuan |Phu Xuan |

|1 |Dust generated by excavation, ground leveling, wind-blown up (sand dust) |1 - 100 g/m3 |

|2 |Dust generated by the process of loading and unloading construction materials |0.1 - 1 g/m3 |

| |(cement, soil, sand, stone ...), machinery and equipment. | |

|3 |Smoke discharged by vehicles, construction mechanics containing dust, CO, |Dust: 4.3kg/Ton DO; SO2 :0.1kg/ Ton DO |

| |hydrocarbon, SO2, NOx ... (trucks of 3.5-16 tons of diesel oil run with S = 0.5%) |NOx: 55kg/Ton DO; |

| | |CO: 28kg/Ton DO |

| | |VOC: 12 kg/ Ton DO |

|4 |Vehicles transporting sand and soil to scatter on the road surface generate dust |0.1 – 1 g/m3 |

Source: Assessment of Sources of Air, Water, Land Pollution, Who, Geneva, 1993

195. Based on the pollution emission coefficient in the above table and the volume of soil and stone in the work, we calculate the amount of suspended dust flying into the air during the construction of the subproject (Working time 8 hours / day, 27 months corresponds to 810 days) as follows:

Table 76: The amount of dust generated by the excavation and embankment and leveling process at the construction site

|No. |Name of the reservoir |Total volume of excavation|The amount of dust generated during the |

| | |and embankment (m3) |excavation and embankment (g/h) |

|1 |Dong Tron |172,154.51 |26.57 ( 2,657 |

|2 |Phu Xuan |71,747.48 |11.07 ( 1,107 |

|3 |Dong Khon |70,584.07 |10.89 ( 1,089 |

|4 |Ea Din 1 |10,73.47 |1.57 ( 157 |

|5 |Gieng Tien |18,055.56 |2.79 ( 279 |

|6 |Hoc Ram |116,298.45 |17.95 ( 1,795 |

|7 |Hon Dinh |162,967.61 |25.15 ( 2,515 |

|8 |Hoa Thuan |12,363.13 |1.91 ( 191 |

196. Dust concentration of excavation and embankment activities is calculated through the following table (With a construction area of ​​2.5 ha and an altitude of emission of 10m):

Table 77: D ust concentration due to operation to excavation and embankment

|No. |Name of the reservoir |The amount of dust generated during the|Average dust concentration |

| | |excavation and embankment (g/h) |(mg/m3/h.) |

|1 |Dong Tron |26.57 ( 2,657 |0.11 ( 10.1 |

|2 |Phu Xuan |11.07 ( 1,107 |0.04 ( 4 |

|3 |Dong Khon |10.89 ( 1,089 |0.04 ( 4 |

|4 |Ea Din 1 |1.57 ( 157 |0.01 ( 1 |

|5 |Gieng Tien |2.79 ( 279 |0.01 ( 1 |

|6 |Hoc Ram |17.95 ( 1,795 |0.07 ( 7 |

|7 |Hon Dinh |25.15 ( 2,515 |0.10 ( 10 |

|8 |Hoa Thuan |1.91 ( 191 |0.01 ( 1 |

Source: Consulting unit

197. From the results of the above calculation, comparing with QCVN 05: 2013 / BTNMT shows that the average dust concentration during the peak period in the subproject construction area, the concentration of dust due to excavation and embankment activities exceeds limits permission term. Therefore, it is necessary to have mitigation measures during the excavation and embankment.

• Impact of dust and emissions from the operation of 30m3 / h concrete batching plants

198. During the operation of the batching plant, the source of environmental pollution is mainly caused by the dust emission source:

- Material preparation stage: Dust generated by unloading during mixing of materials. The source of dust is scattered, not concentrated and not large.

- Mixing step: After quantification is complete, the mixing jar rotates. Workers transport materials to the batching plant (In case the mixing tank still concrete or the outlet of the mixing tank is not closed, the control system will not work). When a worker reaches the location where the material is poured into the mixing container, the material is poured into the mixing container and the cement is discharged. When the concrete is finished discharging, Workers will return to the scale frame to carry out the next batch, simultaneously discharging water and additives.

- Forced mixing time is about 30-45s. After mixing time, the concrete mixture is discharged into the conveying device.

199. The main subjects affected by dust pollution from concrete mixing plants are 2-3 workers operating the mixing plants and workers loading materials for the mixing plants. Due to small mixing plant only 30m3 / h and little construction work volume. On the other hand, the batching plant only operates for a very short time during the construction process. So the impact is low. However, there is still a need for measures to prevent and minimize dust for workers performing the plant operation.

c) Assess the impact level: moderate and controllable.

200. The results of the above impact analysis show that the concentration of dust and some air pollutants exceeds the permissible standard within a distance of 10m from the boundary of the construction works. However, according to the results of the site investigation, the construction works of the subproject are located very far from the residential area, the nearest residential area is about 500m from the construction site. According to the calculation results, dust generated from vehicles does not exceed the permissible standards, However, in fact most of the roads to the site have many gravel roads, based on experience from many construction subprojects, which shows that the activities of construction trucks on these roads often generate dust very big. Besides, the surrounding area is agricultural land planted with coffee, rice, corn ... of the community, open spaces, types of air pollutants easily diluted. As a result, the two affected objects are construction workers and families near the gravel roads that operate the subproject's vehicles. However, these impacts can all be mitigated through appropriate mitigation measures.

3. Impact due to noise and vibration

a. Source of impacts

201. Noise, vibration is generated from construction activities on site; transportation of materials; construction machines.

b. Impact evaluation

• Impact by noise

202. Noise sources mainly from operation of bulldozers and trucks. Based on the typical source noise level of the equipment (the following table), it is estimated that the source noise level is 80.8 ÷ 96.6 dBA according to the formula:

L(= 10lg [pic]

Where:

– L( is the total noise level.

– Li is the noise level of source i.

– n Total noise source.

– Source: Pham Ngoc Dang 2003. Air environment. Science and Technology Publishing House 2003

203. Source noise level and noise level reduced by distance from construction activities are determined similarly to house demolition activities. Results are presented in the following 2 tables:

Table 78: Calculation results of noise level at source during construction phase

|No. |Machine name / Capacity |Noise at 1.5m source (dBA) |

| | | |

| | |Laeq |Average |

|1 |Hand drill set |85 ÷ 88 |87 |

|2 |Crane 10 ton |87 ÷ 90 |89 |

|3 |Crane 6 ton |75 ÷ 80 |78 |

|4 |Tired- crane 16 ton |88 ÷ 94 |91 |

|5 |Tired-crane 6 ton |87 ÷ 89 |88 |

|6 |Tower crane 25T |78 ÷ 81 |80 |

|7 |Table vibrator 1Kw |80 ÷ 87 |84 |

|8 |Puncher 3.5 KW |85 ÷ 88 |87 |

|9 |Concrete pump 10 m3/h |76 ÷ 81 |79 |

|10 |Concrete pump BT 50m3/h |85 ÷ 89 |87 |

|11 |Grout pump 40KW |78 ÷ 79 |79 |

|12 |brick breakers |82 ÷ 83 |83 |

|13 |Backhoe excavator 1.25m3 |79 ÷ 82 |81 |

|14 |Welding machine 23KW |80 ÷ 83 |82 |

|15 |Drilling machine 4.5KW |80 ÷ 85 |83 |

|16 |Portable rock drill f42mm |85 ÷ 89 |87 |

|17 |Drilling jumbo fl05 |86 ÷ 87 |87 |

|18 |Drilling jumbo f76mm |76 ÷ 81 |79 |

|19 |Elevator hydraulic |75 ÷ 80 |78 |

|20 |Air compressor  1200m3/h |84 ÷ 88 |86 |

|21 |Air compressor  600m3/h |83 ÷ 87 |85 |

|22 |Generator (500KVA) |82 ÷ 86 |84 |

|23 |25m3 concrete mixer |84 ÷ 88 |86 |

|24 |Bulldozer ≤110Cv |82 ÷ 87 |85 |

|25 |Bulldozer ≤ 140Cv |82 ÷ 86 |84 |

|26 |Backhoe excavator 1.25m3 |80 ÷ 84 |82 |

|27 |Betonite Circulation Mixing Tank 750l |81 ÷ 85 |83 |

| |QCCP(1) |85 |

| |QCCP(2) |70dBA (6h-21h);55dBA (21h-6h) |

|Note: QCCP (1) - Permissible standard according to QCVN 24/2016 / BYT - National technical regulation on noise - Permissible noise |

|exposure level at the workplace; QCCP (2) - Permissible standards according to QCVN 26: 2010 / BTNMT - National technical regulation on |

|noise |

Source: Pham Ngoc Dang 2003. Air environment. Science and Technology Publishing House 2003

204. To predict noise levels attenuating by distance, use a formula:

(L= 10 lg [pic]( Applicable to road sources)

205. Where: (L - noise reduction level at distance r2 from noise source; r1 - distance of sound level is typical for noise source (r1 = 8m); a - coefficients include the influence of the noise absorption of the terrain (a = 0,1 - the ground has grass).

206. Based on the above formula and input noise level in the above table, we can calculate the result as follows:

Table 79: Forecast of noise reduction according to distance from source

|No. |Machine name / Capacity |Noise at 1.5m source (dBA) |

| | | |

| | |10m |

| |QCCP(2) |70dBA (6h-21h);55dBA (21h-6h) |

|Note: QCCP (1) - Permissible standards according to QCVN 24/2016 / BYT - National technical regulation on noise - Permissible noise |

|exposure level at work place, QCCP (2) - Standard allowed according to QCVN 26: 2010 / BTNMT - National technical regulation on noise |

Source: Consulting unit

207. Based on the results of noise propagation forecasting for independent noise sources used in the subproject construction, it is showed that:

208. When compared with the permissible limits according to QCVN 24/2016 / BYT - National technical regulation on noise - The level of exposure that allows noise in the workplace, most devices with noise propagation are within Permissible limit ≤ 85dBA at distance ................
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