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Environmental Monitoring Report
Semestral Report July-December 2013
VIE: Mong Duong 1 Thermal Power Plant
Prepared by Electricity of Vietnam and Thermal Power Projects Management Unit 1 for the Government of Viet Nam and the Asian Development Bank.
EVN GENCO 3
Thermal Power Projects Management Board 1 (TPMB1)
MONG DUONG (2 x 500MW) THERMAL POWER PLANT PROJECT
2nd
SEMI-ANNUAL
ENVIRONMENTAL MONITORING REPORT 2013
Period 01st
July 31st
December 2013
Contract No: TPMB1-EVN/ADB-2610L2MFF-Consulting-002
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 2 of 70
CONTENTS
EXECUTIVE SUMMARY ........................................................................................................... 5
1. INTRODUCTION ............................................................................................................. 10
1.1 The project ........................................................................................................................................10
1.2 Incorporation of Environmental Requirements into Project Contractual arrangements ...................10
1.3 Project Implementation Progress ......................................................................................................11
1.4 Report Purpose .................................................................................................................................13
2. ENVIRONMENT COMPLIANCE INSPECTIONS ..................................................... 14
2.1 Environment Compliance Inspections at the Construction Site ........................................................14
2.2 Health, Safety & Environment (HES) Aspects .................................................................................14 2.2.1 Health, Safety & Environmental Management Plan (EMP) ......................................................15 2.2.2 HSE Management Organization (EPC Contractor Hyundai E&C) ...........................................15 2.2.3 Total Man hours of the EPC Contractor and its Subcontractors ................................................15 2.2.4 Accident Free Man hours of the EPC Contractor and its Subcontractors ..................................16 2.2.5 Health, Safety and Environmental Training ..............................................................................16 2.2.6 Health, Safety & Environment Inspection and Result ...............................................................19 2.2.7 Personal Protective Equipment (PPE) .......................................................................................21 2.2.8 Security Status ...........................................................................................................................21 2.2.9 HSE Improvement Plant ............................................................................................................22 2.2.10 Safety Award .............................................................................................................................24
3. ENVIRONMENTAL QUALITY MONITORING ........................................................ 25
3.1 Air quality, Noise and Vibration Monitoring....................................................................................25 3.1.1 Monitoring of Air quality ..........................................................................................................25 3.1.2 Noise Monitoring ......................................................................................................................27 3.1.3 Vibration Monitoring ................................................................................................................31 3.1.4 Overall Assessment ...................................................................................................................32
3.2 Water Quality Monitoring ................................................................................................................33 3.2.1 Monitoring parameters and procedures .....................................................................................33 3.2.2 Inspection Activities ..................................................................................................................35 3.2.3 Monitoring result and assessment ..............................................................................................36 3.2.4 Underground water quality at existing wells .............................................................................42 3.2.5 Underground water quality from drilled wells ..........................................................................45 3.2.6 Overall assessment ....................................................................................................................48
4. AQUACULTURE & FISHERY ....................................................................................... 50
4.1 Overview ..........................................................................................................................................50
4.2 Inspection Activities .........................................................................................................................50
4.3 Overall Assessment Aquaculture and Fishery ..................................................................................51
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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5. MANGROVE REFORESTATION MONITORING ..................................................... 53
5.1 Overview ..........................................................................................................................................53
5.2 Inspection Activities .........................................................................................................................53
5.3 Overall Assessment Mangrove Reforestation ...................................................................................54
5.4 Recommendation ..............................................................................................................................55
6. OVERALL CONCLUSIONS AND RECOMMENDATIONS ..................................... 56
6.1 Health, Safety &Waste Disposal Management .................................................................................56
6.2 Environmental Quality Monitoring...................................................................................................56 6.2.1 Air & Noise and Vibration Monitoring .....................................................................................57 6.2.2 Water quality Monitoring ..........................................................................................................57 6.2.3 Aquaculture and Fishery Monitoring ........................................................................................58 6.2.4 Mangrove Reforestation Monitoring .........................................................................................58
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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TABLES Table 1.1Institutional Responsibilities for EMP Implementation (extended version) ................................................. 10
Table 2.1: Accident-free man-hour .................................................................................................................................... 16
Table 2.2: Health, Safety & Environment Training Status .......................................................................................... 17
Table 2.3: Health, Safety & Environment Inspection and Result ................................................................................ 20
Table 2.4: HSE Improvement Plant ............................................................................................................................ 22
Table 3.1: The monitoring location, monitoring parameters and monitoring equipment and analyzed methods for air
quality monitoring ............................................................................................................................................... 25
Table 3.2: Monitoring results of TSP and PM10 ........................................................................................................ 25
Table 3.3: The monitoring location, monitoring parameters and monitoring equipment and analyzed methods for
noise monitoring.................................................................................................................................................. 28
Table 3.4: Monitoring results for Noise at residential sites ......................................................................................... 28
Table 3.5: Monitoring result for Noise at the working site ......................................................................................... 29
Table 3.6: The monitoring location, monitoring parameters and monitoring equipment and analyzed methods for
vibration monitoring ............................................................................................................................................ 31
Table 3.7: Monitoring results for vibration at residential sites .................................................................................... 31
Table 3.8: Coordinates of surface water samples ........................................................................................................ 36
Table 3.9: Monitoring and analyzing results of surface water .................................................................................... 37
Table 3.10: Coordinates of coastal water samples ...................................................................................................... 39
Table 3.11: Monitoring and analyzing results of coastal water samples ..................................................................... 40
Table 3.12: Coordinates of underground water samples (Existing wells) ................................................................... 42
Table 3.13: Monitoring and analyzing results of underground water (Existing wells) ................................................ 43
Table 3.14: The coordinate of underground water (Drilling wells) samples ............................................................... 45
Table 3.15: Monitoring and analyzing results of underground water (Drilling wells) ................................................ 46
Table 5.1: Monitoring and analyzing results ............................................................................................................... 54
FIGURES Figure 3.1: Water quality environmental monitoring procedure ................................................................................. 34
Figure 3.2: Monitoring sites ........................................................................................................................................ 35
Figure 5.1: Method for selection of sample................................................................................................................. 53
APPENDIXS Appendix 1 Environmental Team Organization Chart ................................................................................................ 60
Appendix 2 HSE Organization Chart .......................................................................................................................... 62
Appendix 3 Pictures of Air quality and Noise ............................................................................................................. 63
Appendix 4 Pictures of Water Quality ........................................................................................................................ 65
Appendix 5 Pictures of Aquaculture and fishery......................................................................................................... 66
Appendix 6 Pictures of Mangrove Reforestation ........................................................................................................ 67
Appendix 7 Picture of HSE ......................................................................................................................................... 68
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 5 of 70
EXECUTIVE SUMMARY
The Mong Duong 1 Thermal Power Plant project has been classified as category A1 in
accordance with ADBs Environmental Assessment Guidelines (2003). The Project EMP was developed as an integral part of the Environmental Impact Assessment (EIA) process of the
Project that was completed and approved by ADB in 2006.
To ensure that negative environmental health and safety impacts are minimized and addressed
effectively throughout the project implementation and operational phase, an environmental
management plan (EMP) has been formulated detailing mitigation measures and a monitoring
program during various project phases of the Mong Duong 1 Thermal Power Plant project,
located in the northern province of Quang Ninh (Vietnam)
The report is highlighting on the environmental monitoring tasks and quality observations
performed by the various project entities on air & noise, vibration, water quality, aquaculture
and fishery development and a chapter on mangrove reforestation. It is further reporting on
health & safety issues at site as well as on social impacts on the affected communities including
gender issues related to man and women working together on the same project and sharing
common camp facilities.
It covers the works implemented during the period July to December 2013 and provides a
summary of current problems, conclusions and recommendations how to best mitigate the
impacts on affected parties and the environment.
The following environmental aspects were looked at for environmental compliance and
monitored for environmental quality during the reporting period
Air and noise quality
Water quality
Aquaculture and fisheries status
Mangrove reforestation
Health, Safety and Environment (HES)
Social impacts and Gender issues Problem areas inspected for environmental compliance and monitored for environmental quality
during the reporting period relating to Air & Noise, Vibrations, Water quality and Aquaculture
were more affected in the current reporting period compared to the last 6 months period, mainly
due to the increased level of activities at the construction site or nearby locations serving the
Mong Duong project. Air & Noise and Vibration Issues Regarding Air Quality comparing the monitoring results (dust) of affected areas between the first 6 months in 2013 and the last 6 months of 2013, it shows that the last 6 months of 2013 has a
higher concentration of air pollutants than the 6 months before, especially in the 3 months
September, October and December 2013 when the construction activities were very high. The
increase is mostly due to increased traffic on the new No.18 and old No.18A road likewise
carrying equipment and construction materials to the site
On the new No.18 road near the entrance of Mong Duong 1 and 2 power plants, heavy vehicle
movements are the main cause of dirt and dust. Additionally intermittent rainfalls during these
months made the road muddy too. The contractor is trying hard to clean the road to improve the
conditions. The appearance of construction waste in nearby vacant land (along the new No.18
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 6 of 70
road such as concrete from bored piles and other construction debris has improved over time
and gives a tidy look now. Wheels of construction vehicles leaving the site are cleaned before
entering the public road. Excavated areas and heaps of backfill on the site shall are sprayed with
water or covered with plastic sheeting to limit dust migration to nearby residential areas.
Through 6 monitoring times of noise quality at the working site during 2 days each in the period
July to December 2013, the monitoring results for noise at working site in all six monitoring
times, noise level monitored in 1 hours at boiler area is about 73,2 78,1 dB(A). If compared
with allowable noise levels at working places, the measured values are lower than the limited
permitted values in TCVN 3985:1999 (85 dB).
Noticeable environmental impacts during the reporting period has not only been caused by
construction activities, but also due to social environment changes caused by the gathering of the
large work force in the Mong Duong precinct which causes all sort of problems including
increased traffic, particularly in the early morning and evening time, when a large contingent of
the labor force for both projects enter the work space and accumulation of domestic waste caused
by the increase in people inhabiting the area.
In order to limit the noise level at Residential areas, particularly at night time, the Contractor has
been requested to keep heavy construction works to day times and limit vehicle movements after
10PM to a minimum required. This has been well observed by both contractors for Md1 and
MD2 power plants
Through 6 monitoring times during 2 days each in the period July to December 2013,
Monitoring results for vibration level at 2 sites during the period of 6AM 21PM are lower than the limited value in QCVN 27:2011/BTNMT National Technical Regulations on Vibration. Construction activities of Mong Duong 1 Thermal Power Plant are mainly implemented during
the daytime, therefore no vibration is created during the nighttime, from 21PM-6AM. Water quality
Water quality is monitored for underground water and coastal water:
Almost all tested items of underground water at the sampling sites are within the limits of
the National technical regulation on underground water quality QCVN09/2008/BTNMT
except for (Cd) and (Cl-) content and content of micro-organisms (Coliform)
Concentration of microorganisms (Coliform) beyond permissible limits of the National
technical regulation on underground water quality were found at the sampling points of
PW-01, PW-02, PW-03, PW-04, PW-05, PW-06, PW-08, PW-09. This is explained by
the fact that water in existing wells are not frequently utilized, thus the water is not
rotated thereby easily creating conditions for microbial growing.
Concentrations of chloride (Cl-) beyond permissible limits of the National technical
regulation on underground water quality were found at the sampling points of PW-03,
GW-01-D, GW-08, GW-09 and GW-11. This is explained by the fact that the sampling
sites are located in the coastal areas, thus may be lightly saline
Impact of obstacle removal activities in coastal surface water is monitored by coastal
surface water sampling sites. Parameters of them are all within limit in comparison with
QCVN 10: 2008/BTNMT
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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Impact of Mong Duong river alignment activities in coastal surface water is monitored by
coastal surface water sampling sites. Parameters of them are almost within the limit in
comparison with QCVN 08: 2008/BTNMT
Impact of transport activities in coastal surface water is monitored by coastal surface
water sampling sites. Parameters of them are within limit in comparison with QCVN 10:
2008/BTNMT
Two of the heavy water pollution sources are water discharged from coal mining areas
via the Mong Duong River and barges transporting coal in the nearby waterway.
Spilled coal from barges dilutes elements and compound to coastal waters.
In order to compensate for the two wells which were covered during the initial site fill activities,
the contractor has been requested to drill two additional wells with a depth of 25 to 30m to
ensure water quality sampling can be done at lower aquifers. This has since been completed by
the Owners own contracted agency.
Contractor must maintain all current measures to avoid pollution of surface and underground
water resources by strict control on solid and liquid waste dumping and/or accidental spillage of
oil and chemicals.
To offset the problem of the polluted water discharge from coal mining activities, treatment of
discharged water from the coal mining process and a reduction in coal smuggling activity would
greatly improve the quality in the water way, but this may be difficult to achieve.
Aquaculture and Fisheries
Based on the results of the two surveys on fishing and aquaculture activities in Thac Thay, De
Dach and Mong Duong rivers and along the coastal line of Cam Hai commune during the second
half of 2013, it can be concluded that the construction phase of Mong Duong 1 power plant has
minor impacts on the aquatic resources in the inspected areas. There were no fishing activities in
De Dach and Mong Duong rivers due to heavy industrial pollution from mining and coal trading.
Number of aquatic species and their components in these areas are very limited. Some fishing
activities were observed in the Thac Thay River and Luong Gac areas, but there are no
shrimp activities along Cam Hai coastal line due to loss from shrimp disease outbreak and
flooding. Normal fishing activities and aquaculture species are observed in the Thac Thay River
and along the coastal line of Cam Hai commune.
To reduce impacts of pollution from mining and coal trading, Contractors are requested to
strictly enforced the solid and liquid waste disposal management plan and prohibit dumping of
hazardous substances into nearby rivers and coastal water.
Mangrove Reforestation Program
To compensate for the loss of mangrove forest taken by the Mong Duong Project, 52ha of
mangrove has been re-planted in Dong Rui Commune, (Tien Yen district, QuangNinh province)
Inspection result shows that mangrove quality develops well, branching off well, in the allocated
area of 52 ha of mangrove forest which was replanted, there is 95% survival rate of plants.
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 8 of 70
With the current achieved results, the Mangrove planting project has met the requirement of
ADBs EIA.
To sustain the good results, continuous protection and feeding of the mangrove is a must to
ensure their good development and branching off. Activities such as tree clearing, weeding and
replanting of failed areas must also be maintained
Dumping of waste in mangrove and forestry areas and resource extraction from mangroves and
plantation forestry areas must be strictly prohibited.
Mangrove reforestation in area 1 has been accepted by TPMU1 in October 2013. The area 2 has
not been accepted due to the ratio of coverage has not meet the requirement of the contract yet
and the areas of died trees needs to be regrown, so efforts need to be continued to achieve the
required results
Health & Safety and Environment
Monitoring consists of daily observation and inspections of environmental pollution, soil
contamination, fire hazards, labor and site safety and other health or safety hazards. This topic
does not belong to the monitoring scheme of the assigned environmental experts of the
Consultant, but is observed and monitored by the Owners Consultant Site supervision staff during their daily work activities and by the Consultants Occupational Health and Safety expert.
Current results show
Good overall performance of the EPC contractors appointed HSE team with the
Environmental Officer (OE) appointed as per the Contractors EMP
Good site safety management of the EPC contractor with regards to fire safety, plant and
equipment safety, labor safety, worker training before entering working sites and access
gate checks at site entering points.
No fatality but 2 Lost Time accident occurred until now with the accumulated total man-
hours of 12,386,146 as of December 2013
No serious soil issues happened at site until now, besides some small oil spillages
which were treated immediately as per the Contractors EMP
Waste management follows the contractors EMP by separating waste into different
groups and collected and disposed as per the EMP requirements.
All required permits are in place ie. Permit To Work, Confined Space Entry Permits, Gas
Test Certificates etc.
First Aid service is available 24/7
In order to maintain the good standard the EPC contractor must strictly enforce the site safety,
warn offenders and in repeat cases dismiss them from site (some recent incidents shown in the
attached pictures need to be corrected)
Newly legislated and/or revised environmental laws must be carefully examined in order to
determine whether or not they are required to be implemented during the project execution
Contractor has to ensure at all times that it complies with the EIA and the requirements specified
in chapter VI of the ADB environmental assessment guidelines, 2003. Contractor should once
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 9 of 70
every 6 months organize exercises based on likely accident scenarios at site in which the
contractors assigned key site personnel assumes their emergency response roles and
periodically evaluate the efficiency of the Project EMP in place.
Social and Gender Aspects
Most current results show that both men and women are well informed of potential health and
safety risks: HIV/AIDS control and prevention activities for both camp workers and offices were
carried out by the EPC contractor to educate awareness on personal hygiene and sexually
transmitted diseases. Drug education for construction and office workers are implemented and
undergo test screenings every 6 months for early detection and manage health issues. Camp
workers and construction office workers are vaccinated and regularly checked for diseases by
healthcare provider taking care of construction workers and local villages.
A recent audit at one of the contractors labor camp (LLM 69.1) showed excellent results. The
rooms for women are in good condition and include bath room and toilet inside. Television and
Air conditioner are also provided. Water supply is from underground well treated by RO system
before using. Water is tested frequently for its safe use.
The condition of the site toilets is good with separate toilets available for both men and women.
Currently 76 toilets are provided at the Mong Duong 1 site for some 3,000 workers. They are
cleaned daily. As per the EPC contractors information the percentage of female workers is
approximately 15% split in field and office staff.
It is suggested that the Owners Consultant will continue to perform regular audits at the contractors labor camps, especially with regards to gender issues, at the contractors offices and at the construction site itself, to ensure the good standard regarding sanitary conditions is
maintained throughout the project construction phase.
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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1. INTRODUCTION
1.1 The project
The Government of Viet Nam has requested assistance from the Asian Development Bank
(ADB) to part finance the construction of the Mong Duong 1 Thermal Power Plant (under Loan
No.2350, and 2610). The Project is a coal-fired, thermal power electricity generation project with
a generation capacity of 1,000 MW. The overall project comprises of two power plants on the
same plot of land with an ultimate generation capacity of 2200 MW. The Mong Duong 1 power plant will comprise of two 500 MW generating units, and associated supporting infrastructure
whereas the Mong Duong 2 power plant built under a BOT scheme comprises of two 600 MW
generating units.
The MD1 project has been classified as category A1 in accordance with ADBs Environmental Assessment Guidelines (2003). The EMP was developed as an integral part of the Environmental
Impact Assessment (EIA) process of the Project that was completed in 2006.
The Mong Duong 2 power plant project is not part of this report, although it may contribute to
the overall impact on the environment as the two plants are back to back located on the same
piece of land.
1.2 Incorporation of Environmental Requirements into Project Contractual arrangements
To ensure that any possible negative environmental impacts are minimized and addressed
effectively, an environmental management plan (EMP) has been formulated detailing mitigation
measures and a monitoring program during various project phases. The individual monitoring
tasks and its frequencies are determined by the EIA and the approved staffing plan of the Project
Owner of the Consultants experts conducting the monitoring tasks together with EVN appointed environmental monitoring agencies of Quang Ninh province
Key organizations in the implementation of the EMP and their corresponding responsibilities are
presented in Table 1.1
Table 1.1Institutional Responsibilities for EMP Implementation (extended version)
EMP Responsibilities
Mong Duong 1 Responsibility
- Submit Government EIA/EMP to MONRE - Successfully implement EMP - Provide funds for EMP implementation
EVN/GENCO3 (Project owner)
- Coordinate and manage overall project implementation and operation including
guiding and supervision of EMP
implementation during pre-construction,
construction, and operation phases
- Manage and coordinate environmental monitoring
- Coordinate with other parties in relation to environmental management activities
- Supervise civil work contractor during construction, including implementation of
TPMB1
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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EMP Responsibilities
Mong Duong 1 Responsibility
environmental management activities under EMP
- Manage EMP budget - Integrate EMP specifications in contract documents
- Prepare detailed design activities incorporating relevant EMP requirements
Detail design consultant
(PECC1)
- Implement environmental specifications detailed in the construction contract
Construction contractor
- Monitor EMP implementation during the construction phase
Environmental monitoring
consultant team
- Conduct periodic monitoring of compliance to EIA/EMP provisions
Quang Ninh DONRE
1.3 Project Implementation Progress
During the second half of 2013 of the construction phase of the Mong Duong 1 thermal power
plant project, construction activities increased commensurately with the ongoing progress of the
project.
Some of the main civil construction works carried out at the construction site during this period:
July 2013
Concrete works for Stack #1were completed
Concrete works for top slab of Waste water treatment pond area was completed.
Concrete works for foundation of seal pit #1 and #2 were completed.
Concrete works for Fly Ash foundation and pedestals were completed.
Concrete works for WT clarifier and acid tank foundation were completed.
Superstructure for Administration building, Common Services building, Central Control
building and Water treatment building were completed and now undergoing architectural
finishing works
Fuel oil tank foundations were completed
Top slab of Turbine pedestal #1 was completed August 2013
Earth anchor works for CW Intake facility were completed
Concrete works for CW Intake and pump station continued
Excavation works for Bottom Ash silo and ID fan foundation were completed
Backfill work for Fly Ash Silo foundation was completed
Excavation works for WT plant outdoor equipment foundations were completed
Excavation work for Potable tank was completed
Piling work for Chlorination plant and CW outdoor facility was completed
Installation for 110kV switchyard were completed
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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September 2013
Concrete works for C.W discharge box culvert were completed Concrete works for Seal pit A, B were completed Concrete works for Generator Transformer #2 fire walls were completed Top slab of Turbine pedestal #2 was completed
Concrete work for Bottom Ash Silos and ESP foundations were completed
Concrete works for WT plant outdoor clarifier, potable water tank, pH adjust
&mixing pond and pressure filter foundation were completed
Piling work for Coal Transfer Towers & Belt Conveyors was completed
Piling work for limestone and fuel oil unloading jetties was completed October 2013
Concrete work for Stack #2 Windshield was completed.
Concrete work for 2nd slab in Intake Facility (pump house) was completed.
Concrete work for Cooling water discharge box culvert zone A was completed
Excavation work for Discharge outfall was completed
Concrete work Transformer #1 foundation was completed
Concrete work Transformer #2 pedestal was completed
Backfill work Transformer #2 was completed
Concrete work for Main pipe rack was completed
Concrete work for ID Fan foundation #1B was completed
Backfill work for ID Fan #1B was completed
Backfill work for Bottom ash silo #1B was completed
Concrete work for cable trench in 500KV & 110KV Switchyard was completed
Pile work for Return water pump house was completed
Pile work for Gantry crane in Intake facility was completed
Pile work for Return water pipe rack was completed
November 2013
Backfill work for C.W. Discharge Box Culvert zone A was completed
Backfill work for Main pipe rack was completed
Concrete work for ID fan wall 1B was completed
Concrete work for ID fan wall 2B was completed
Concrete work for Bottom ash silo 1A was completed
Backfill work for Bottom ash silo 1A was completed
Concrete work for foundation of 500KV & 110KV Switchyard was completed
Concrete work for WWT area support foundation was completed
Concrete work for WWT area trench was completed
Concrete work for WWT area pump foundation was completed
Excavation work for Heavy fuel oil dike was completed
Excavation work for Sewage treatment system was completed
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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December 2013
Concrete work for Outfall was completed
Backfill work for C.W Discharge Box Culvert zone B was completed
Backfill work for Seal pit A, B was completed
Concrete work Transformer #1 Pedestal & Fire Wall was completed
1.4 Report Purpose
This report intends to describe the progress regarding implementation of the project EMP and
compliance issues and corrective actions for the second half of 2013 of the construction phase of
the Mong Duong 1 thermal power plant project.
The following environmental aspects were inspected for environmental compliance and
monitored for environmental quality:
Air, noise quality and vibration
Water quality
Health Safety and Environment (HES) aspects
Aquaculture and fisheries
Mangrove reforestation
1.5 Vietnamese Environmental law/regulation and Project Environment documents
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
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2. ENVIRONMENT COMPLIANCE INSPECTIONS
2.1 Environment Compliance Inspections at the Construction Site
- Air quality impact:
+ Dust resulting from the removal of vegetation and heavy earthmoving activities
+ The large number of construction equipment and heavy vehicles cause considerable dust emissions
- Mitigation measures: - Constructors have applied the following measures
+ Spraying bare soil and heaps of excavation materials with water to minimize dust generation during dry periods
+ Minimizing disturbance to vegetation and terrain features and providing cleared areas and stockpiles with vegetative cover to serve as buffers between the Project and the population
+ Fencing off construction areas to contain dust,
+ Covering trucks during transport of materials and impose speed limits
+ Avoid burning of domestic wastes
+ Contractors will be required to properly maintain equipment to minimize emissions
+ Ensuring the commitment of contractors and/or suppliers to undertake applicable measures above
+ All trucks before leaving the construction site are required to clean the wheels
- Noise and ground vibration:
+ Noise impact and ground vibration during construction can disturb nearby communities
- Mitigation measures:
+ Construction schedules must optimize daytime working hours and scale down activities at night.
+ Extensive earthmoving and movement of heavy equipment should be conducted only during regular working hours
2.2 Health, Safety & Environment (HES) Aspects
The following Health & Safety and Environment (HES) aspects were inspected / monitored
during the reporting period for compliance
Site safety issues Site waste disposal management Pollutants Spillage
Worker Camp and Sanitation issues Social impacts and Gender issues Health aspects
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Mong Duong (2 x 500MW) Thermal Power Plant Project
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2.2.1 Health, Safety & Environmental Management Plan (EMP)
The EPC contractors Environmental Management Plan (Rev B) was issued to the Project Owner on 30thNov 2012 under Doc No. MD1-0-T-070-01-00021 and approved as such.
The policy shall be communicated to all employees and those working for and on behalf of
HDEC through the induction course and be displayed at the site working area and in prominent
positions on site.
2.2.2 HSE Management Organization (EPC Contractor Hyundai E&C)
The EPC contractors HSE organization structure is in line with their own EMP (refer to Appendix 1 update 25th December 2013)
Safety Engineers/Officers have Certificate of OHS and show good working experience. Contractors Environmental Officer (OE) is appointed as per the EMP and portrays
excellent knowledge of the environmental management system (EMS) as well as the
applicable approved environmental impact assessment report (EIA).
2.2.3 Total Man hours of the EPC Contractor and its Subcontractors
Table 2.1 shows the accident hours against cumulative total man-hours during the period of
July and December, 2013
Page 16 of 70
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Table 2.1: Accident-free man-hour
DESCRIPTION Total (Cumulative)
MONTH Jul Aug Sept Oct Nov Dec
Cumulative total man-hours
6,007,761
7,132,820
8,818,228
9,635,789
10,988,975
12,386,146
Cumulative since last LTI
892,351
1,125,059
1,047,408
1,455,561
2,222,311
3,619,483
Fatalities - - - - - -
Accum. Lost time incidents (LTI)
-
-
1
2
2
2
Restricted Work Day Case
-
-
-
-
-
-
Accum. Medical Treatment Case
1
1
1
1
1
1
Accum. Non- injurious incidents
8
10
12
12
14
15
Accum. First aid cases
99
106
115
127
134
141
Accum. Near Miss Incidents
4
5
5
5
7
8
LTIFR* - - - 0.208 0.182 0.161
* LTIFR (Lost Time Injury Frequency Rate)
Fatality a+ a =
kg as , 0, 0
2.2.4 Accident Free Man hours of the EPC Contractor and Subcontractors
Until 1st
January 2014, there has been no fatality with total accumulated man hours reaching
12386146. Unfortunately, 2 lost time incidents occurred on 15/9/2013 [Appendix 2] and on 12/10/2013 [Appendix 3] and one Fire incident on 4/12/2013 [Appendix 4]
2.2.5 Health, Safety and Environmental Training
The training records and site inspection results related to safety and environmental aspects are
presented in Table 2.2.
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 17 of 70
Table 2.2: Health, Safety & Environment Training Status
Item
No. o
July
f
No. of
No.
August
of N
o. of
September
No. of No. of
No.
October
of No. of
November
No. of No. of
December
No. of No. of
Trainer Description Training People training People training People training People training People training People
T.B.M. Safety Engineer
Daily T.B.M. before
starting work
Daily
77,266
Daily
99,979
Daily
97,818
Daily
128,280
Daily
121,924
Daily
121,924
Induction
Training
Safety
Engineer
Induction Training
for
Safety/Environment
30
1,175
23
1,183
23
1,315
22
1,343
22 873 22 800
Rigger Safety
Officer Lifting, Rigging,
Signal man
2
39
1
12
1
10
Working at
Height Safety
Engineer For people who
work at height
5
152
6
242
7
340
2
70 5 370 7 298
Refreshment
Training
Safety
Officer
PTW, Lifting,
Working at height,
Accident case
21
1,780
21
1,647
Confined Space
Training
Safety
Officer
How to work in
confined space
1
26
4
152
3
87
2
243 2 243 2 95
Special
Training Safety
Officer Electrical Safety for
Licogi Corp.
1
60
Special
Training Safety
Officer
Rigger for YooA
1
33
Special
Training Safety
Manager
PTW Procedure
2
110
Special
Training
Safety
Officer
Crane operator for BDCC and Lilama
45.1
1
46
Fire-fighting
Training Safety
Engineer How to prevent fire
from the site
30
1,175
23
1,183
23
1,315
22
1,343
22 873 22 800
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 18 of 70
Item
Trainer
Description
July
August
September
October
November
December
No. of
Training
No. of
People
No. of
training
No. of
People
No. of
training
No. of
People
No. of
training
No. of
People
No. of
training
No. of
People
No. of
training
No. of
People
Operation
Training
Safety
Officer
For crane operator,
fork lift operator
1
120
PTW
Training
Safety
Officer
Permit to work
procedure
22 873
Refreshment
Training
Safety
officer
For Locogi Corp, Lilama 69.1 after
near miss
2 133
Special
Training
Safety
Office
Safety Supervisor
training for Licogi
Corp Engineers
1 6
Refreshment
Training
Safety
Office
Lilama 69.1 after
near miss incident
1 53
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Training methodology
Power Point presentation for site safety training in both languages English and Vietnamese are
available and taught at Hyundais Site Safety office on a daily bases
All new employees/visitors need to pass the safety training before admission to site. In case of an incidence occurrence, the involved persons are sent back to repeat training to
avoid future incidents of a similar nature
2.2.6 Health, Safety & Environment Inspection and Result
Table 2.3 shows HSE inspections and results during the observed period of July and
December, 2013
Page 19 of 70
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Table 2.3: Health, Safety & Environment Inspection and Result
Location Inspector Jul Aug Sep Oct Nov Dec Description
Boiler
Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Daily
Daily
Working at height, Lifting Activities, (October and November: A Lilama 69.1 worker was injured by
Pipe spool)
Admin
Building
Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Daily
Working at height, Scaffolding Condition, Access etc. (September: One person (Licogi 18) was injured while
dismantling of hoist was ongoing)
Whole
area
Workshop/Safety
Engineer
Weekly
Weekly
Weekly
Weekly
Weekly
Weekly
Visual inspection of all cranes (September: Temporary electric
cable and electric pole located in GRP Block B (belonging to MD
2) were damaged by dump truck) Field
Tank Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Daily Electric Condition (Welding and Panel Board), Scaffolding
Condition, Confined Space Condition
STB
Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Daily
Daily
Working at height, Scaffolding Condition, Access etc.
August: A hook did a free fall due to operators mistake from approx. 5m at STB #2 and hit one workers left leg. He sustained slight injury (First Aid Case)
September: Small fire happened in the GRP Block C, it was
extinguished immediately.
Chimney Safety
Engineer/Officer
Daily Checking slip form, working at height, lifting activities.
WWT
Building
Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Daily
Lifting activities, working at height, scaffolding condition, Access etc.
July: Falling material (Non-injury accident) took place when roof
lifting was ongoing by YOOA contractor
Coal
Yard
Safety
Engineer/Officer
Daily
Daily
Daily
Daily
Working at height, Lifting activities August: A fire happened in the electric panel board. It was
extinguished completely by the Fire Watch Man
Intake Safety
Engineer/Officer
Daily Working at height, Scaffolding Condition, Lifting activities, Hot Work, and etc
BOP Safety
Engineer/Officer
Daily Lifting activities, Hot work, electric condition, and etc
Environment Compliance Inspection Reports were issued in August, September, October, November and December 2013 by HDEC.
Page 20 of 70
Page 21 of 70
2.2.7 Personal Protective Equipment (PPE)
All employees of the EPC contractor and all its subcontractors, or anyone visiting the work
area, are required to wear hard hat (with exception of office, cafeteria, and
accommodation), safety shoes, high visibility vest and fluorescent gathers covering ankles
above the safety shoes. The use of a safety harness is compulsory when working at heights
greater than 2 meters above ground. Safety [harnesses are to be of the double clip type so
the wearer is secure at all times
2.2.8 Security Status
EPC contractor has placed security guards 24/7 at all the access gates. (Main gate,
cooling water intake and material laydown area)
All gates implement inspections for workers and vehicles to prevent theft.
EPC contractor has prepared PPE for visitors at the main gate and check all workers and
vehicles if they have valid IDs and/or vehicle cards
There are 4 security cameras at the Main gate.
However, there were still some occurrence of thefts reported by the contractor
Time & Date: 03-Sep-2013 at night time
Location: Barge, temporary jetty
Discovered by: Vietranstimex Supervisor
Material Stolen: 1'' C/S pipe (4.2 m long) 466 pieces
4'' Horizontal Bracing (2.8 m long) 39 pieces
4'' Horizontal Bracing (2.3 m long) 20 pieces
4'' Horizontal Bracing (1.2 m long) 22 pieces
Page 22 of 70
Time & Date: 25-Sep-2013 at night time
Location: The North of Boiler 1B
Discovered by: HDEC Security Supervisor
Material Stolen: 1 ton of steel scrap
This material hadn't moved out the site
Time & Date: 07-Oct-2013 18.15PM
Location: Main gate
Description: Two SeJong workers tried to bring copper wire to out of
the site. However, these workers were caught by HDEC Security
Guard, and this material hadn't moved out the site
Material Stolen: - 20 Ground Cable (01 m) x 1
- 40 Copper wire (20 cm) x 4
Time & Date: 20-Oct-2013 18.00PM
Location: Main gate
Description: Two SeJong workers tried to bring copper wire to out of
the site. However, these workers were caught by HDEC Security
Guard, and this material hadn't moved out the site
Material Stolen: - 15 Ground Cable (70 cm) x 2 - 30 Copper wire (25 cm) x 2
2.2.9 HSE Improvement Seminar
Table 2.4: HSE Improvement Seminar
Month Seminar topics Implementation Time Description
July Special training for driver and
operator
Safety
Engineer/Officer
August 2013
How to operate crane, forklift and
excavator
July Reinforce PTW Implement
HSE Department
From August
All works need PTW to implement
August Apply new
penalty system
HSE Department
September
2013
Money deducted from Subcontractor
salary will be spent for Safety Award and
Safety Facilities. August Make man
basket for
emergency case
HSE Department
September
2013
For lowing injury person at restricted area
(Turbine, Transformer, etc).
September Refreshment training
HSE Department Sep-Oct
2013 PTW, Lifting, Working at height, Accident cases
September Fire Fighting drill
HSE Department
Oct 2013 Fire watch man and safety staff operate fire water truck periodically
October Enhance environmental
management
HSE Department
Nov 2013
Hazardous waste management
October Fire-fighting drill
HSE Department
Nov 2013 Fire watch man and safety staff operate fire water truck periodically
November Zero incident strategy
HSE Department Nov 2013 to
Dec 2013 Prevention all accident until end of this year
Page 23 of 70
Month Seminar topics
Implementation Time Description
November Fire-fighting drill
HSE Department
Dec 2013 Fire watch man and safety staff operate
fire water truck periodically December Zero incident
strategy
HSE Department Nov 2013 to
Dec 2013 Prevention all accident until end of this year
December Environment management
Whole of the site
Dec 2013 Hazardous waste management according
to procedure
Page 24 of 70
2.2.10 Safety Award
Some 20-50 workers received Safety Awards each month during the reporting period. HDEC give out these safety award certificates and 100.000 VND on each first day of a month.
Page 25 of 70
3. ENVIRONMENTAL QUALITY MONITORING
3.1 Air quality, Noise and Vibration Monitoring
3.1.1 Monitoring of Air quality
The monitoring location, monitoring parameters, monitoring equipment and analyzed methods
for air quality monitoring are presented in Table 3.1
Table 3.1: The monitoring location, monitoring parameters and monitoring equipment and analyzed
methods for air quality monitoring
Monitoring
Location
Monitoring
parameter
Equipment for
monitoring
Monitoring and Analyzed
Method
At two
residential sites
selected in EMP.
Sampling and
analysis for:
+ TSP (1 hr and 24
hrs)
+ PM10 (1 hr and
24 hrs)
Compared to QCVN
05:2013/BTNMT National technical
Regulations on
Ambient Air
Quality.
+ Air Sampler SL-20
SIBATA/Japan
+ Air Sampler SL-
15P SIBATA/Japan
+ Air Sampler
MinivolTM
TAS Metrics/ USA
- Follow the validity Viet Nam
Standard for environment in
TCVN 5067:1995 Air quality Weigh Method for determination of suspended
dusts content.
Monitoring results on air quality and analysis are presented in Table 3.2
Table 3.2: Monitoring results of TSP and PM10
Monitored Points
Results (unit: g/m3)
TSP 1hr
(17h0018h00)
TSP 24hr PM10 1hr
(17h00 18h00)
PM10 24hr
The 7th mobilization: from 10th to 11th July 2013:
KK1
437
288
213
171
KK2
405
272
187
155
The 8th
mobilization: from 15th
to 16th
August 2013:
KK1
491
297
231
193
KK2
442
281
217
175
The 9th
mobilization: from 13th
to 14th
September 2013:
KK1
335
249
197
168
KK2
317
223
178
159
The 10th
mobilization: from 25th
to 26th
October 2013:
KK1
443
298
184
162
Page 26 of 70
Monitored Points
Results (unit: g/m3)
TSP 1hr
(17h0018h00)
TSP 24hr PM10 1hr
(17h00 18h00)
PM10 24hr
KK2
451
315
192
178
The 11th
mobilization: from 21st
to 22nd
November 2013:
KK1
289
229
157
145
KK2
273
214
168
127
The 12th
mobilization: from 19th
to 20th
December 2013:
KK1
296
231
177
151
KK2
281
222
176
137
QCVN
05:2013/BTNMT
300 200 - 150
Figure 3.1 compares results of 6 monitoring times.
g/m3
600
500
400
300
200
100
KK1 KK2
350
300
250
200
QCVN 05:2013/BTNMT
150
100
50
KK1 KK2
0
The 7th The 8th The 9th The 10th The 11th The 12th
0
The 7th The 8th The 9th The 10th The 11th The 12th
TSP 1hr (17h00-18h00) TSP 24hr
250
200
KK1 KK2
QCVN 05:2013/BTNMT
250
200
KK1 KK2
150
150 QCVN 05:2013/BTNMT
100 100
50 50
0
The 7th The 8th The 9th The 10th The 11th The 12th 0
The 7th The 8th The 9th The 10th The 11th The 12th
PM10 1hr (17h00-18h00) PM1024hr
Page 27 of 70
Figure 3.1 The results of 6 monitoring times.
Assessment of the monitoring results:
Through 6 monitoring times during 2 days each in July, August, September, October, November,
December 2013, the results show that:
- The monitoring results for average 1 hr TSP at 2 monitoring points KK1 and KK2 in the
all four monitoring times (July, August, September and October) are higher than the
limited value in QCVN05:2013/BTNMT National Technical Regulations on Ambient
Air Quality(higher than 1,05 1,63 times). Especially the 15th of August monitoring
times, the monitoring results for average 1 hr TSP at 2 monitoring points KK1 and KK2
are higher than the limited value in QCVN05:2013/BTNMT National Technical
Regulations on Ambient Air Quality (higher than 1,47 1,63 times).
- The monitoring results for average 24 hr TSP at 2 monitoring points KK1 and KK2 in all
six mobilizations are higher than the limited value in QCVN05:2013/BTNMT National
Technical Regulations on Ambient Air Quality (higher than 1,07 1,57 times). Especially
the 25th of October monitoring times , the monitoring results for average 24 hr TSP at 01
monitoring point KK2 are higher than the limited value (1,57 times).
- The monitoring results for average 24 hr PM10 at monitoring points KK1 and KK2 in all
six mobilizations are approximations and higher than the limited value in
QCVN05:2013/BTNMT National Technical Regulations on Ambient Air Quality (higher
than 0,91 1,28 times).
- Comparison of monitoring results between KK1and KK2 shows that KK1 has higher
concentrations of air pollutants than those at KK2, because the population density and
roads in coal mines at KK1 is higher than that at KK2.
- The time that concentrations of average 1 hr TSP and average 1 hr PM10 at 2 monitoring
points reach maximum is the rush hour when traffic activities are the highest (17h00
18h00).
- The weather in Mong Duong: During the 2 monitoring times in 2013 (September and
November) is rain, in the 4 monitoring times remaining ( July, August, October and
December) is sunny, dry.
3.1.2 Noise Monitoring
The monitoring location, monitoring parameters, monitoring equipment and analyzed methods
for noise monitoring are presented in Table 3.3
Page 28 of 70
Table 3.3: The monitoring location, monitoring parameters and monitoring equipment and analyzed
methods for noise monitoring
Monitoring
Location
Monitoring
parameter
Equipment for
monitoring
Monitoring and
Analysist
Method
At two
residential sites
selected in EMP.
Compared with
Equivalent acoustic
level A, LeqdBA.
Integrating-
Averaging Sound
level meter, Type
6226 ACO/Japan.
Follow the Viet Nam
Standard for environment
TCVN 7878-1: 2008 (ISO
1996-1: 2003); TCVN
7878-2: 2010 (ISO 1996-
QCVN 2: 2003).
26:2010/BTNMT National technical Regulations on Noise.
+ At 01 construction site where workers are impacted
Monitoring results for Noise level are presented Table 3.4
Table 3.4: Monitoring results for Noise at residential sites
Monitored Points
Results LAeq (1h) (dBA)
7h 8h 17h 18h 22h 23h
The 7th mobilization: from 10th to 11thJuly 2013:
KK1 69,7 70,8 63,7
KK2 59,8 61,2 56,4
The 8th mobilization: from 15th to 16thAugust 2013:
KK1 69,5 72,4 66,1
KK2 57,6 59,4 53,7
The 9th mobilization: from 13th to 14thSeptember 2013:
KK1 68,7 70,8 66,9
KK2 62,7 64,1 57,1
The 10th mobilization: from 25th to 26th October 2013:
KK1 69,1 70,3 65,8
KK2 63,1 64,5 58,2
The 11th mobilization: from 21st to 22nd November 2013:
KK1 62,5 68,7 59,6
KK2 60,7 65,9 57,3
Page 29 of 70
Monitored Points
Results LAeq (1h) (dBA)
7h 8h 17h 18h 22h 23h
The 12th mobilization: from 19th to 20th December 2013:
KK1 63,1 69,3 60,1
KK2 62,2 66,4 58,1
QCVN
26:2010/BTNMT
70 70 55
Figure 3.2 compare results of 6 monitoring times
dBA 80
70
60
50
40
30
20
10
0
80 KK1(7h-8h) KK2(7h-8h) KK1(17h-18h) KK2(17h-18h)
QCVN 26:2010/BTNMT 70
60
50
40
30
20
10
0
KK1 KK2
QCVN 26:2010/BTNMT
The 7th The 8th The 9th The 10th The 11th The 12th The 7th The 8th The 9th The 10th The 11th The 12th
Page 30 of 70
LAeq1hr (7h-8h) v (17h-18h) LAeq1hr (22h-23h)
Figure 3.2 The results of 6 monitoring times
Monitoring results for Noise at working site are presented Table 3.5
Table 3.5: Monitoring result for Noise at the working site
Monitored Points
Results LAeq (1h) dB(A)
9h 10h
The 7th
mobilization: from 10th
to 11th
July 2013:
KK3
73,7
The 8th
mobilization: from 15th
to 16th
August 2013:
KK3
73,2
The 9th
mobilization: from 13th
to 14th
September 2013:
KK3
78,1
The 10th
mobilization: from 25th
to 26th
October 2013:
KK3
77,6
The 11th
mobilization: from 21st
to 22nd
November 2013:
Monitored Points
Results LAeq (1h) dB(A)
9h 10h
KK3
75,8
The 12th
mobilization: from 19th
to 20th
December 2013:
KK3
76,4
Figure 3.3 compares results of 6 noise monitoring times at working sites .
dBA 79
78
77
76
75
74
73
72
71
70
The 7th The 8th The 9th The 10th The 11th The 12th
Page 31 of 70
LAeq1hr (9h-10h)
Figure 3.3 The results of 6 monitoring times
Assessment of noise monitoring results:
Through 6 monitoring times during 2 days each in July, August, September, October, November,
December 2013, the results show that:
- The monitoring results for noise in the daytime of 7h - 8h during the period of 6h - 21h at KK1 and KK2 are lower than the limited value in QCVN 26:2010/BTNMT National Technical Regulations on Noise; of 17h - 18h during the period of 6h - 21h at KK1 are
approximate and higher than (about 0,72,6 dBA) the limited value in QCVN 26:2010/BTNMT,at KK2 are lower than the limited value in QCVN 26:2010/BTNMT .
- The monitoring results for noise in the nighttime of 22h 23h during the period of 21h-
6h, at KK1, monitored point about 7m from the road are higher than (about 4,6-11,9 dBA) the
limited value in QCVN 26:2010/BTNMT National Technical Regulations on Noise; at KK2,
monitored point about 20 m from the road, are approximate and higher than (about 1,4 - 3,2
dBA) the limited value in QCVN 26:2010/BTNMT National Technical Regulations on Noise.
Caused by transport activities increased on the old 18A road at night such as: carrying coal,
materials.
At the working site: Through 6 monitoring times during 2 days each July, August, September, October, November, December 2013, the results show that:
- The monitoring results for noise at working site in all six monitoring times, noise level monitored in 1 hours at boiler area is about 73,2 78,1 dB(A). If compare with allowable noise level at working place the lower than the limited value in TCVN 3985:1999 (85 dB).
3.1.3 Vibration Monitoring
The monitoring location, monitoring parameters, monitoring equipment and analyzed methods
for vibration are presented in Table 3.6
Table 3.6: The monitoring location, monitoring parameters and monitoring equipment and analyzed
methods for vibration monitoring
Monitoring
Location
Monitoring
parameter
Equipment for
monitoring
Monitoring and Analyst Method
At two
residential sites
selected in
EMP.
Vibration
Acceleration (dB).
Compared with
QCVN
27:2010/BTNMT National technical
Regulations on
Vibration.
Vibration meter
TYPE 3233 ACO/Japan.
Follow the validity Viet Nam
Standard for environment in TCVN
6963:2001 Vibration and shock Vibration emitted by construction
works and factories Method of measurement.
Monitoring for vibration level was conducted at the same time with noise monitoring at
monitoring points. Vibration is monitored with 3 directions and the highest result is used to
compare with the regulation.
Page 32 of 70
Table 3.7: Monitoring results for vibration at residential sites
Monitored Points
Results, dB (1h)
7h 8h 17h 18h 22h 23h
The 7th
mobilization: from 10th
to 11thJuly 2013:
KK1 58,1 50,5 41,7
KK2 48,3 43,4 37,6
The 8th
mobilization: from 15th
to 16th
August 2013:
KK1 48,3 49,1 46,8
KK2 40,4 41,2 38,2
The 9th
mobilization: from 13th
to 14th
September 2013:
KK1 46,7 48,3 40,4
KK2 40,1 45,6 36,8
The 10th
mobilization: from 25th
to 26th
October 2013:
KK1 47,1 48,5 41,2
KK2 41,3 43,2 37,6
The 11th
mobilization: from 21st
to 22nd
November 2013:
KK1 42,3 44,7 40,8
Page 33 of 70
50
Results, dB (1h)
Monitored Points 7h 8h
17h 18h
22h 23h KK2 39,5 41,3 36,8
The 12th
mobilization: from 19th
to 20th
December 2013:
KK1 42,8 45,6 41,1
KK2 40,8 41,9 38,5
QCVN 27:2010/BTNMT
(6h 22h)
75
-
Figure 3.5 compares results of 6 monitoring times
70
dB KK1(7h-8h) KK2(7h-8h) KK1(17h-18h) KK2(17h-18h)
60 45 40
50 35
40 30
25
30 20
20 15
10 10
5
0 0
The 7th The 8th The 9th The 10th The 11th The 12th
KK1 KK2
The 7th The 8th The 9th The 10th The 11th The 12th
Vibration 1hr (7h-8h) v (17h-18h) Vibration 1hr (22h-23h)
Figure 3.5 The results of 6 vibration monitoring times
Assessment of the vibration monitoring results: Through 6 monitoring times during 2 days each in July, August, September, October, November, December 2013, the results show
that:
- Monitoring results for vibration level at 2 sites during the period of 6h 21h are lower than the limited value in QCVN 27:2011/BTNMT National Technical Regulations on Vibration.
- Construction activities of Mong Duong 1 Thermal Power Plant are implemented during the day time, therefore no vibration is created during the nighttime, from 21h-6h.
3.1.4 Overall Assessment
Implementation of Environmental Management Measures by the Construction contractor has
followed the guidelines under the EMP
Problems Identified and Actions Recommended
During the second 6 months in 2013, construction activities at the site of Mong Duong 1
were more intense than during previous monitoring sessions due to construction activities
now overlapping with erection activities. Therefore, during this period, overall construction
activities had an impact on the air environment (dust) and noise to the nearby residential
areas.
Page 34 of 70
02 monitoring stations KK1 and KK2 located at residential areas selected in EMP are not
impacted during the construction phase of Mong Duong 1 Thermal Power Plant, but may
have an impact during the operation phase, particularly from the high pollution sources
(boiler, stack etc.).
Air pollution sources (mainly dust) towards the more dense populated residential areas of
Mong Duong Ward which is near the 2 sides of the old No.18A road are due to transport
activities (carrying coal and materials, cars, motorcycles sorting out coal plant (near KK2),
coal discharge area (especially when the wind blows from south-east direction). However,
better quality of the old No.18A road and community awareness of Mong Duong ward
residents was higher so the level of air pollution mitigation was better ( the old 18A road is
cleaned and watered regularly by local people).
Comparison monitoring results (dust) between the first 6 months of 2013 and the second 6
months of construction phase in 2013 shows that the second 6 months of 2013 had a higher
concentration of air pollutants than the 6 months previous. This is mainly caused by
increased transport activities on the new and old No.18 road which influence the resident
area of Mong Duong, especially when the weather in Mong Duong is sunny, hot and dry.
The social environment due to the gathering of large work force at Mong Duong precinct,
which cause the problems regarding to services, food provision etc need to be further
observed
3.2 Water Quality Monitoring
Monitoring is implemented inside and outside of Mong Duong 1 Thermal Power Plant project
within 5km radius
The report on the actual state of the water environment at Mong Duong 1 Thermal Power Plant
project has been prepared with the following purposes:
Domestic sewage water, grey water and subsequence discharge that would impact on ambient
surface water. Thus, during the pre-construction process, samples of 16 sensitive surface water
sites and 20 sensitive underground water sites were selected. The results of the original samples
were carefully recorded (as baseline data) to assess possible changes of the water quality during
construction. The data collected during the preconstruction phase will be compared to the data
obtained during construction and operation to establish sources of pollution and recommend
solutions to reduce possible impacts.
3.2.1 Monitoring parameters and procedures Monitoring parameters:
Ambient surface water: Temperature, pH, TSS, DO, COD, BOD5, Cl-, NH4+, heavy metal (As, Cr, Cd, Cu, Pb, Zn, Ni, Hg, Fe, Mn, Se), oil and grease, Coliform, T-N, T-P.
Underground water: Temperature, pH, TSS, COD, Cl-, NH4+, NO3-, SO42-, heavy metals (As, Cr, Cd, Cu, Pb, Zn, Ni, Hg, Fe, Mn, Se), VOC, SVOC, TPH, oil and grease
and Coliform.
Monitoring procedure
Page 35 of 70
Sampling, analyzing in
Laboratory
Collecting information relating to the project. Analyzing samples in the laboratory Summarize and handling analytical data. Assessing monitoring results. Prepare evaluation report of water conditions
Propose treatment measures to minimize water environment pollutants (Figure 3.1)
Figure 3.1: Water quality environmental monitoring procedure
Water Environment
monitoring
Measures at Site
Synthesize and Handle
Data
Assess monitoring results
Propose treatment measures to
minimize pollutants.
Preparing report
Page 36 of 70
3.2.2 Inspection Activities
Monitoring sites
Monitoring site is described in Figure 3.7 below and co-ordinates of sensitive areas are
shown in the Annex
Figure 3.2: Monitoring Sites
Environmental condition at Monitoring times
No rain
No significant events at coastal water sampling times
No significant events at underground water sampling times
Drilling Well Nos. 1, 2, 3, 4, 6, 8 were available for water sample monitoring
Page 37 of 70
3.2.3 Monitoring results and Assessment
Surface water quality
Water samples were collected from surface water bodies at the project site and its
surrounding area based on Mong Duong and De Dach River to establish the baseline database for
the surface water quality. Eight water samples were collected at the selected locations. The
locations of the surface water sampling points are shown in the Figure 3.7. The coordinates of
the surface water sample points are shown in Table 3.8
Table 3.8: Coordinates of surface water samples
No.
Item
Co-ordinate
Description X Y
Surface water
1
SW-01 10702100 E 2100410 N
Mong Duong river
2
SW-02 10702101 E 2100429 N
Mong Duong river
3
SW-03a 10702108 E 2100408 N
Mong Duong river
4
SW-06 10702125 E 2100512 N
De Dach river
5
SW-07 10702147 E 2100504 N
De Dach river
6
MD-1 107020.170 E 21
003.800 N
Mong Duong river
7
DD-1 107020.934 E 21
004.273 N
De Dach river
8
DD-4 107022.013 E 21
005.147 N
De Dach river
Page 38 of 70
The surface freshwater resources in the areas affected by the Mong Duong power plant project
development, consist of the lower reaches of the western Mong Duong River which discharges at
the plant site, the lower estuary of the small De Dach River to the north, and the distant Thac
Thay River to the north of Cam Hai commune. Mong Duong River drains a small, sparsely
populated basin from the west that is dominated by an active open pit coal mine The River
passes through Mong Duong town just before discharging into the Luong Gac channel at the
plant site. The analytical results of samples are summarized in the Table 3.9
Table 3.9: Monitoring and analyzing results of surface water
P
ara
met
er
Sampling site
QCVN
08:2008
BTNMT
(B2)
Unit
SW-
01
SW-
02
SW-
03a
SW-
06
SW-
07
MD-
01
DD-1
DD-4
On-site monitoring results
Temp. 0C
28.37
28.04
27.79
27.96
27.07
29.49
28.15
29.14
-
pH
-
7.00
7.35
6.72
6.73
7.05
6.13
5.72
6.90
5.5-9
DO
mg/l
4.7
5.3
5.1
4.3
5.1
3.9
4.3
4.8
2
Laboratory monitoring results
TSS
mg/l
28.25
19.44
15.21
20.95
18.00
38.69
22.60
19.76
100
COD
mg/l
9.8
9.8
8.9
11.5
10.2
16.8
12.0
10.7
50
BOD
mg/l
6.05
5.62
7.05
7.18
7.50
8.53
7.63
6.79
25
Cl-
mg/l
254.34
344.05
587.45
644.36
795.82
169.96
287.09
372.91
-
NH4+
mg/l
0.358
0.283
0.260
0.280
0.234
0.306
0.287
0.262
1
As
mg/l
0.0034
0.0050
0.0036
0.0028
0.0038
0.0038
0.0036
0.0030
0.1
Cr
mg/l
0.0025
0.0020
0.0018
0.0028
0.0019
0.0031
0.0029
0.0027
-
Cd
mg/l
0.0006
0.0009
0.0004
0.0008
0.0005
0.0015
0.0006
0.0004
0.01
Cu
mg/l
0.0044
0.0044
0.0048
0.0138
0.0084
0.0263
0.0149
0.0098
1
Pb
mg/l
0.0072
0.0053
0.0051
0.0067
0.0066
0.0073
0.0056
0.0059
0.05
Zn
mg/l
0.0485
0.0533
0.0471
0.0580
0.0527
0.0740
0.0715
0.0592
2
Ni
mg/l
0.0027
0.0025
0.0017
0.0021
0.0015
0.0024
0.0020
0.0014
0,1
Hg
mg/l
0.0004
0.0003
0.0003
0.0007
0.0005
0.0008
0.0005
0.0003
0.002
Fe
mg/l
0.1817
0.1529
0.0970
0.1307
0.1212
0.3172
0.1605
0.1082
2
Page 39 of 70
P
ara
met
er
Unit
Sampling site
QCVN
08:2008
BTNMT
(B2)
SW-
01
SW-
02
SW-
03a
SW-
06
SW-
07
MD-
01
DD-1
DD-4
Mn
mg/l
0.2546
0.2164
0.1456
0.2524
0.1895
0.6253
0.3362
0.1614
-
Se
mg/l
0.0009
0.0006
0.0007
0.0006
0.0072
0.0006
0.0008
0.0003
-
Oil and
Grease
mg/l
0.286
0.127
0.053
0.148
0.086
0.269
0.152
0.074
0.3
Coliform
MPN/100ml
587
462
570
680
586
820
690
561
10000
T-N
mg/l
1.61
0.82
0.55
2.13
0.19
3.23
1.72
1.35
-
T-P
mg/l
0.355
0.324
0.281
0.473
0.408
0.378
0.374
0.347
-
Analytical results for collected surface water samples show:
a. pH value of almost samples are within limits permitted by QCVN 08:
2008/BTNMT (B2);
b. NH4+
concentration at sampling sites are within limit permitted by QCVN
10:2008/BTNMT.
c. Heavy metal such as As, Hg, Cd, Pb are harmful to humans and other living organisms.
However, concentrations of metals in the samples are very low, there is not much in
Cd, Hg; measured values are within the limits permitted by QCVN10:2008/BTNMT
(others column).
d. Fe concentrations of 8 stations are lower than QCVN 10:2008/BTNMT.
e. All of oil and grease concentration at surface water sampling sites are within limits
when compared with QCVN 08:2008/BTNMT (B2 column), those concentrations
are not much when comparing with QCVN 08:2008/BTNMT (B2 column)
f. Coliform concentrations of 8 surface water samplings are within limits when
compared with QCVN 08:2008/BTNMT (B2 column).
Coastal water quality
The Mong Duong 1 thermal power plant is situated in the northwest of Bai Tu Long in northern
Vietnam. The coastal zone in this area is typical of Vietnam, which is dominated by vast sandy
sediment deposits that extend from well above the high water mark to beyond 5km offshore.
Coastal water samples were collected at four zones that potentially could be affected in different
ways by the power plan development: (1) near-shore area of Cam Hai commune; (2) at the ash
pond; (3) in the Van Don district (island group) about 1km east of the project site and (4) in the
Luong Gac channel from Cam Hai commune south to Cua Ong.
Page 40 of 70
At the three points (LG-1; LG-3; LG-4) impact assessment of transportation activities to coastal
water environment is performed. Eight coastal water samples were collected at selected
locations. The locations of coastal water sampling are shown in the Figure 3.2. The coordinates
of the coastal water samples are shown in Table 3.10
Table 3.10: Coordinates of coastal water samples
No.
Item
Co-ordinate
Description X Y
Coastal water samples
1 SW-3b 10702127 E 2100422 N Mng Dng River
2 SW-04 10702150 E 2100420 N Mng Dng River
3 SW-05a 10702111 E 2100456 N D Dch River
4 SW-05b 10702139 E 2100434 N Mng Dng River
5 SW-08 10702119 E 2100539 N Cam Hai Coastal zone
6 LG-1 107022.595 E 21
005.110 N Luong Gac
7 LG-3 107021.275 E 21
004.611 N Luong Gac
8 LG-4 107022.201 E 21003.855 N Luong Gac
The lower reaches of the river starting at Mong Duong town are brackish and strongly influenced
by the tidal cycle of Luong Gac and Bai Tu Long. The delta at the mouth of the river below
Mong Duong town experiences annual flooding resulting from the combination of high runoff
during the rainy season and spring (full moon) tides. Turbidity and suspended sediment loads in
the river are high, which is caused by land erosion from human activity (open-pit coal mining)
and the natural sandy soils of the region. The monitoring and analyzing results of coastal water
samples are presented in Table 3.11.
2nd Semi-annual Environmental Monitoring Report
Mong Duong (2 x 500MW) Thermal Power Plant Project
Table 3.11: Monitoring and analyzing results of coastal water samples
N
o.
P
ara
met
er
Unit
Sampling site
QCV
N
10:20
08/
BTN
MT
(Othe
r)
SW-
3b
SW-
04
SW-
05a
SW-
05b
SW-
08
LG-1
LG-3
LG-4
On-site monitoring result
Temp. 0C
27.33
27.36
27.22
27.64
27.07
26.77
27.21
27.50
-
pH
-
8.17
8.13
7.91
8.32
8.04
8.43
8.13
8.06
6.5-
8.5
DO
mg/l
5.3
5.6
5.1
5.4
5.8
5.4
6.4
5.6
-
Laboratory result assessment of coastal water
TSS
mg/l
10.99
8.50
10.27
9.90
8.94
8.75
8.40
12.32
-
COD
mg/l
7.7
7.8
8.9
8.1
6.2
7.5
7.4
9.2
-
BOD
mg/l
5.98
5.43
5.58
6.67
3.94
4.80
7.03
5.86
-
Cl-
mg/l
1156.
20
1223.
87
1250.
37
12113.
00
1267.
13
1215.
70
1204.
28
1223.
10
-
NH4
+
mg/l
0.217
0.202
0.189
0.169
0.180
0.175
0.146
0.172
0.5
As
mg/l
0.003
8
0.003
0
0.003
4
0.0041
0.003
2
0.003
9
0.003
5
0.002
6
0.05
Cr
mg/l
0.001
9
0.001
6
0.002
0
0.0016
0.002
0
0.002
1
0.001
7
0.001
6
-
Cd
mg/l
0.000
4
0.000
6
0.000
2
0.0006
0.000
3
0.000
5
0.000
2
0.000
4
0.005
Cu
mg/l
0.003
8
0.004
8
0.002
9
0.0032
0.004
7
0.005
7
0.004
4
0.004
3
1
Pb
mg/l
0.005
9
0.005
7
0.004
2
0.0042
0.006
1
0.005
2
0.005
1
0.006
6
0.1
Zn
mg/l
0.044
9
0.047
1
0.037
7
0.0423
0.047
9
0.039
0
0.047
7
0.037
5
2
Ni
mg/l
0.001
4
ND
0.001
8
ND
ND
ND
ND
ND
-
Hg
mg/l
0.000
3
0.000
2
0.000
5
0.0006
0.000
3
0.000
2
0.000
3
0.000
2
0.005
Page 40 of 70
2nd Semi-annual Environmental Monitoring Report 2013
Mong Duong (2 x 500MW) Thermal Power Plant Project
Page 41 of 70
N
o.
P
ara
met
er
Unit
Sampling site
QCV
N
10:20
08/
BTN
MT
(Othe
r)
SW-
3b
SW-
04
SW-
05a
SW-
05b
SW-
08
LG-1
LG-3
LG-4
Fe
mg/l
0.091
1
0.079
2
0.079
6
0.0739
0.071
1
0.101
9
0.097
4
0.081
1
0.3
Mn
mg/l
0.165
7
0.092
2
0.077
0
0.0627
0.052
2
0.024
4
0.021
1
0.022
2
0.1
Se
mg/l
0.000
5
0.000
6
0.000
7
Recommended