Executive Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
2.1 Air quality
2.2 Water Quality Monitoring
2.3 Dolphin Monitoring
2.4 EM&A Site Inspection
2.5 Waste Management Status
2.6 Environmental Licenses and Permits
2.7 Implementation Status of Environmental Mitigation Measures
2.8 Summary of Exceedances of the Environmental Quality Performance Limit
2.9 Summary of Complaints, Notification of Summons and Successful Prosecutions
3.1 Construction Activities for the Coming Quarter
3.2 Key Issues for the Coming Quarter
3.3 Monitoring Schedule for the Coming Quarter
Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A. Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO). Subsequent applications for variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.
The construction phase of the Contract commenced on 1 November 2013 and will tentatively be completed in 2021. The impact monitoring of the EM&A programme, including air quality, water quality, marine ecological monitoring and environmental site inspections, were commenced on 1 November 2013.
This is the Twenty-ninth Quarterly EM&A report presenting the EM&A works carried out during the period from 1 December 2020 to 28 February 2021 for the Contract No. HY/2012/08 Northern Connection Sub-sea Tunnel Section (the “Contract”) in accordance with the Updated EM&A Manual of the TM-CLK Link Project. As informed by the Contractor, the major activities in the reporting quarter included:
Land-based Works
· Installation of green roof system & chain fence - South Ventilation Building;
· Defect works for reinstatement at Box culvert – Northern Landfall; and
· Demolition works and backfilling works of CLP substation.
A summary of monitoring and audit activities conducted in the reporting period is listed below:
24-hour TSP Monitoring 16 sessions
1-hour TSP Monitoring 16 sessions
Operational Phase Water Quality Monitoring 3 sessions
Operational Phase Dolphin Monitoring 6 sessions
Joint Environmental Site Inspection 12 sessions
Implementation of Marine Mammal Exclusion Zone
No marine works were undertaken since 30 December 2019, therefore, daily 250 m marine mammal exclusion zone monitoring was not undertaken since 30 December 2019.
Summary of Breaches of Action/Limit Levels
Breaches of Action and Limit Levels for Air Quality
Three (3) Action Level exceedances of 1-hour TSP were recorded in this reporting period. No Action and Limit Level exceedance of 24-hour TSP monitoring was recorded. Investigation reports are provided in Appendix J.
Dolphin Monitoring
One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between December 2020 and February 2021.
Environmental Complaints, Non-compliance & Summons
No non-compliance with EIA recommendations, EP conditions and other requirements associated with the construction of this Contract was recorded in this reporting period.
No environmental complaint was received in this reporting period.
No environmental summons was received in this reporting period.
Reporting Change
There was no reporting change in the reporting period.
Upcoming Works for the Next Reporting Period
As informed by the Contractor, there was no major activities undertaken in the coming quarterly period.
Future Key Issues
Potential environmental impacts in the coming quarterly period are expected to be mainly associated with waste management issues.
According to the findings of the Northwest New Territories (NWNT) Traffic and Infrastructure Review conducted by the Transport Department, Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be operating beyond capacity after 2016. This forecast has been based on the estimated increase in cross boundary traffic, developments in the Northwest New Territories (NWNT), and possible developments in North Lantau, including the Airport developments, the Lantau Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.
An Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report (EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009) for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4 November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December 2010. Subsequent applications for variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.
Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A. Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).
Layout of the Contract components is presented in Figure 1.1.
The organization structure of the Contract is shown in Appendix A. The key personnel contact names and contact details are summarized in Table 1.1 below.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
Highways Department
|
Engr 24/SD |
Ken T.M. Cheng |
2762 4062 |
3188 6614 |
SOR (AECOM Asia Company Limited)
|
Chief Resident Engineer |
Roger Man
|
2293 6388
|
2293 6300
|
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader
|
Y.H. Hui |
3465 2850 |
3465 2899 |
IEC
|
Manson Yeung |
9700 6767 |
3465 2899 |
|
Contractor (Dragages – Bouygues Joint Venture) |
Deputy Environmental Manager |
Bryan Lee
|
2293 7323
|
2293 7499 |
|
24-hour hotline
|
|
2293 7330 |
|
ET (ERM-HK) |
ET Leader |
Jasmine Ng |
2271 3311 |
2723 5660 |
The general layout plan of the site showing the detailed works areas is shown in Figure 1.2. The Environmental Sensitive Receivers in the vicinity of the Contract are shown in Figure 1.3.
Table 1.2 Summary of Construction Activities Undertaken during the Reporting Period
Construction Activities Undertaken |
Land-based Works |
· Installation of green roof system & chain fence - South Ventilation Building; · Defect works for reinstatement at Box culvert – Northern Landfall; and · Demolition works and backfilling works of CLP substation. |
Figure 1.2 Locations of Construction Activities – December 2020 to February 2021
|
The EM&A programme required environmental monitoring for air quality, water quality and marine ecology as well as environmental site inspections for air quality, noise, water quality, waste management, marine ecology and landscape and visual impacts. The EM&A requirements and related findings for each component are summarized in the following sections
As per the requirements under Condition 2.4 of EP-354/2009/D, the Enhanced TSP Monitoring Plan has been prepared under Contract No. HY/2012/08. Details of the monitoring plan are presented in the Enhanced TSP Monitoring Plan ([1]).
In accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times every six (6) days and impact 24-hour TSP monitoring was carried out once every six (6) days when the highest dust impact was expected. 1-hr and 24-hr TSP monitoring frequency was increased to three times per day every three days and daily every three days, respectively, as excavation works for launching shaft commenced on 24 October 2014.
Excavation works for launching shaft were completed and notification of change on air quality monitoring frequency was submitted to EPD on 14 September 2020. 1-hr and 24-hr TSP monitoring frequency was changed to three times per day every six days and daily every six days, respectively, since 14 September 2020.
High volume samplers (HVSs) were used to carry out the 1-hour and 24-hour TSP monitoring in the reporting quarter at the five (5) air quality monitoring stations in accordance with the requirements stipulated in the Updated EM&A Manual (Figure 2.1; Table 2.1). Wind anemometer was installed at the rooftop of ASR5 for logging wind speed and wind direction. Details of the equipment deployed are provided in Table 2.2.
Table 2.1 Locations of Impact Air Quality Monitoring Stations and Monitoring Dates in this Reporting Period
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters & Frequency |
ASR1 |
4, 10, 16, 22 and 28 December 2020 |
Tuen Mun Fireboat Station
|
Office |
TSP monitoring 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 6 days 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 6 days Enhanced TSP monitoring (commenced on 24 October 2014) 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 3 days 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 3 days |
ASR5 |
2, 8, 14, 20 and 26 January 2021 |
Pillar Point Fire Station
|
Office |
|
AQMS1 |
1, 5, 10, 16, 22 and 27 February 2021 |
Previous River Trade Golf
|
Bare ground |
|
ASR6 |
|
Butterfly Beach Laundry
|
Office |
|
ASR10 |
|
Butterfly Beach Park |
Recreational uses |
Table 2.2 Air Quality Monitoring Equipment
Equipment |
Brand and Model |
High Volume Sampler |
Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170) |
Wind Meter |
Davis (Model: Vantage Pro 2 (S/N: AS160104014) |
Wind Anemometer for calibration |
Lutron (Model No. AM-4201) |
The Action and Limit Levels of the air quality monitoring is provided in Appendix D. The Event and Action plan is presented in Appendix H.
The schedules for air quality monitoring in the reporting quarter are provided in Appendix E.
Impact air quality monitoring was conducted at all designated monitoring stations in the reporting period under favorable weather conditions. The major dust sources in the reporting period include construction activities under the Contract as well as nearby traffic emissions.
The monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4, respectively. Monitoring results are presented graphically in Appendix G and detailed impact air quality monitoring data were reported in the Eighty-sixth to Eighty-eighth Monthly EM&A Reports.
Table 2.3 Summary of 1-hour TSP Monitoring Results in this Reporting Period
Month/Year |
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
December 2020 to February 2021 |
ASR 1 |
130 |
78 - 237 |
331 |
500 |
ASR 5 |
165 |
85 - 472 |
340 |
500 |
|
AQMS1 |
119 |
48 - 240 |
335 |
500 |
|
ASR6 |
154 |
61 - 261 |
338 |
500 |
|
ASR10 |
97 |
39 - 246 |
337 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting Period
Month/Year |
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
December 2020 to February 2021 |
ASR 1 |
103 |
47 - 147 |
213 |
260 |
ASR 5 |
99 |
47 - 166 |
238 |
260 |
|
AQMS1 |
79 |
37 - 130 |
213 |
260 |
|
ASR6 |
108 |
62 - 167 |
238 |
260 |
|
ASR10 |
72 |
46 - 121 |
214 |
260 |
Three (3) Action Level exceedances of 1-hour TSP were recorded in this reporting period. No Action and Limit Level exceedance of 24-hour TSP monitoring was recorded. Investigation reports are provided in Appendix J. Summary of Exceedances for Air Quality Impact Monitoring in this Reporting Quarter is detailed in Table 2.15.
According to the Updated EM&A Manual, an operational phase water quality monitoring shall be performed monthly during the first year of Project operation at all designated monitoring stations including control stations. The operation phase water quality monitoring shall be ceased after the first year of operation of the Project subject to the first year review. Operational phase water quality monitoring commenced in June 2020. Locations of water quality monitoring stations presented in Figure 2.2 and in Table 2.5.
Table 2.5 Locations of Water Quality Monitoring Stations and the Corresponding Monitoring Requirements
Station ID |
Type |
Coordinates |
*Parameters, unit |
Depth |
Frequency |
|
|
|
Easting |
Northing |
|
|
|
IS(Mf)11 |
Impact Station (Close to HKBCF construction site) |
813562 |
820716 |
Temperature(°C) pH(pH unit) Turbidity (NTU) Water depth (m) Salinity (ppt) DO (mg/L and % of saturation) · SS (mg/L) |
3 water depths: 1m below sea surface, mid-depth and 1m above sea bed. If the water depth is less than 3m, mid-depth sampling only. If water depth less than 6m, mid-depth may be omitted.
|
Monthly at each station, at mid-flood and mid-ebb tides during the construction period of the Contract. |
SR4(N2) |
Sensitive receiver (Tai Ho Inlet) |
814688 |
817996 |
|||
CS2(A) |
Control Station |
805232 |
818606 |
|||
CS(Mf)5 |
Control Station |
817990 |
821129 |
|
|
|
*Notes: In addition to the parameters presented monitoring location/position, time, water depth, sampling depth, tidal stages, weather conditions and any special phenomena or works underway nearby were also recorded.
With reference to the EM&A Report under Contract No. HY/2011/03, water quality monitoring station SR3 was relocated to SR3(N) since 1 September 2017. With reference to the EM&A Report under Contract No. HY/2011/03, water quality monitoring station SR4 was relocated to SR4(N) since 1 January 2018. With reference to the EM&A Report under Contract No. HY/2011/03, water quality monitoring station SR4(N) was relocated to SR4(N2) since 21 August 2019. With reference to the EM&A Report under Contract No. HY/2011/03, water quality monitoring station CS2 was relocated to CS2(A) since 23 August 2017. |
Table 2.6 summarizes the equipment used in the impact water quality monitoring programme.
Table 2.6 Water Quality Monitoring Equipment
Equipment |
Model |
Multi-Parameters |
YSI ProDss 17H105557; YSI 6920V2 0001C6A7; YSI ProDss 15M100005; YSI ProDss 16H104234 YSI ProDss 18A104824 |
Positioning Equipment |
Furuno GP-170 |
Water Depth Detector |
Lowrance Mark 5x / Garmin Striker 4 |
The schedule for water quality monitoring in the reporting quarter is provided in Appendix E.
In total of 3 monitoring events for operational phase water quality monitoring were conducted at all designated monitoring stations in the reporting period. Results and graphical presentations of impact water quality monitoring are presented in Appendix G. Detailed operational phase water quality monitoring results were reported in the Eighty-sixth to Eighty-eighth Monthly EM&A Reports.
Post construction (operational) phase dolphin monitoring is required to be conducted by a qualified dolphin specialist team to evaluate whether there have been any effects on the dolphins. In order to fulfil the EM&A requirements and make good use of available resources, Contract No. HY/2012/08 has taken over the responsibility for implementation of dolphin monitoring from HZMB HKLR Contract No. HY/2011/03 since October 2019.
Table 2.7 summarizes the equipment used for the impact dolphin monitoring.
Table 2.7 Dolphin Monitoring Equipment
Equipment |
Model |
Global Positioning System (GPS)
Camera
Laser Binoculars Marine Binocular
Vessel for Monitoring
|
Garmin 18X-PC Geo One Phottix Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens Infinitor LRF 1000 Bushell 7 x 50 marine binocular with compass and reticules 65 foot single engine motor vessel with viewing platform 4.5m above water level |
Dolphin monitoring should cover all transect lines in Northeast Lantau (NEL) and the Northwest Lantau (NWL) survey areas twice per month throughout the entire construction period and operational phase. The monitoring data should be compatible with, and should be made available for, long-term studies of small cetacean ecology in Hong Kong. In order to provide a suitable long-term dataset for comparison, identical methodology and line transects employed in baseline dolphin monitoring was followed in the impact dolphin monitoring and operational phase dolphin monitoring.
The operational phase dolphin monitoring was carried out in the NEL and NWL along the line transect as depicted in Figure 2.3. The co-ordinates of all transect lines are shown in Table 2.8 below.
Table 2.8 Operational Phase Dolphin Monitoring Line Transect Co-ordinates
Line No. |
Easting |
Northing |
Line No. |
Easting |
Northing |
||
1 |
Start Point |
804671 |
815456 |
13 |
Start Point |
816506 |
819480 |
1 |
End Point |
804671 |
831404 |
13 |
End Point |
816506 |
824859 |
2 |
Start Point |
805476 |
820800* |
14 |
Start Point |
817537 |
820220 |
2 |
End Point |
805476 |
826654 |
14 |
End Point |
817537 |
824613 |
3 |
Start Point |
806464 |
821150* |
15 |
Start Point |
818568 |
820735 |
3 |
End Point |
806464 |
822911 |
15 |
End Point |
818568 |
824433 |
4 |
Start Point |
807518 |
821500* |
16 |
Start Point |
819532 |
821420 |
4 |
End Point |
807518 |
829230 |
16 |
End Point |
819532 |
824209 |
5 |
Start Point |
808504 |
821850* |
17 |
Start Point |
820451 |
822125 |
5 |
End Point |
808504 |
828602 |
17 |
End Point |
820451 |
823671 |
6 |
Start Point |
809490 |
822150* |
18 |
Start Point |
821504 |
822371 |
6 |
End Point |
809490 |
825352 |
18 |
End Point |
821504 |
823761 |
7 |
Start Point |
810499 |
822000* |
19 |
Start Point |
822513 |
823268 |
7 |
End Point |
810499 |
824613 |
19 |
End Point |
822513 |
824321 |
8 |
Start Point |
811508 |
821123 |
20 |
Start Point |
823477 |
823402 |
8 |
End Point |
811508 |
824254 |
20 |
End Point |
823477 |
824613 |
9 |
Start Point |
812516 |
821303 |
21 |
Start Point |
805476 |
827081 |
9 |
End Point |
812516 |
824254 |
21 |
End Point |
805476 |
830562 |
10 |
Start Point |
813525 |
821176 |
22 |
Start Point |
806464 |
824033 |
10 |
End Point |
813525 |
824657 |
22 |
End Point |
806464 |
829598 |
11 |
Start Point |
814556 |
818853 |
23 |
Start Point |
814559 |
821739 |
11 |
End Point |
814556 |
820992 |
23 |
End Point |
814559 |
824768 |
12 |
Start Point |
815542 |
818807 |
24* |
Start Point |
805476* |
815900* |
12 |
End Point |
815542 |
824882 |
24* |
End Point |
805476* |
819100* |
The Action and Limit levels of operational phase dolphin monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix I.
The dolphin monitoring schedules for the reporting period are shown in Appendix E.
A total of 777.67 km of survey effort was conducted, with 98.3% of the total survey effort being conducted under favourable weather conditions (ie Beaufort Sea State 3 or below with good visibility) in this reporting quarter. Amongst the two areas, 290.80 km and 486.87 km of survey effort were conducted from NEL and NWL survey areas, respectively. The total survey effort conducted on primary and secondary lines were 579.21 km and 198.46 km, respectively. The survey efforts are summarized in Appendix H.
A total of 14 groups of 40 Chinese White Dolphins sightings were recorded during the six sets of surveys in this reporting quarter. All dolphin sightings were made during on-effort search and 11 of the dolphin groups were made on primary lines. During this reporting quarter, all dolphin groups were sighted in NWL, while no dolphin was sighted in NEL.
Encounter rates of Chinese White Dolphins are deduced from the survey effort and on-effort sighting data made under favorable conditions (Beaufort 3 or below with good visibility) in the reporting quarter with the results and comparison with baseline results present in Tables 2.9 and 2.10.
Table 2.9 Individual Survey Event Encounter Rates
|
Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort) |
Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort) |
|
Primary Lines Only |
Primary Lines Only |
||
NEL |
Set 1 (1 & 3 Dec 2020) |
0.00 |
0.00 |
Set 2 (8 & 10 Dec 2020) |
0.00 |
0.00 |
|
Set 3 (25 & 26 Jan 2021) |
0.00 |
0.00 |
|
Set 4 (27 & 28 Jan 2021) |
0.00 |
0.00 |
|
Set 5 (2 & 8 Feb 2021) |
0.00 |
0.00 |
|
Set 6 (18 & 23 Feb 2021) |
0.00 |
0.00 |
|
NWL |
Set 1 (1 & 3 Dec 2020) |
0.00 |
0.00 |
Set 2 (8 & 10 Dec 2020) |
0.00 |
0.00 |
|
Set 3 (25 & 26 Jan 2021) |
6.50 |
19.51 |
|
Set 4 (27 & 28 Jan 2021) |
5.08 |
11.86 |
|
Set 5 (2 & 8 Feb 2021) |
4.87 |
17.84 |
|
Set 6 (18 & 23 Feb 2021) |
1.62 |
1.62 |
Note: Dolphin Encounter Rates are deduced from the Two Sets of Surveys (Two Surveys in Each Set) in the reporting quarter in Northeast (NEL) and Northwest Lantau (NWL)
Table 2.10 Quarterly Average Encounter Rates
|
Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort) |
Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort) |
||
December 2020 – February 2021 |
September – November 2011 |
December 2020 – February 2021 |
September – November 2011 |
|
Northeast Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest Lantau |
3.01 ± 2.83 |
9.85 ± 5.85 |
8.47 ± 9.07 |
44.66 ± 29.85 |
Note: Encounter rates deduced from the baseline monitoring period have been recalculated based only on survey effort and on-effort sighting data made along the primary transect lines under favourable conditions.
Group size of Chinese White Dolphins were singletons in North Lantau region during December 2020 to February 2021. The average dolphin group sizes from these three months were compared with the ones deduced from the baseline period in September to November 2011, as shown in Table 2.11.
Table 2.11 Average Dolphin Group Size
|
Average Dolphin Group Size |
|
December 2020 – February 2021 |
September – November 2011 |
|
Overall |
2.86 ± 2.45 (n = 14) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
|
Northwest Lantau |
2.86 ± 2.45 (n = 14) |
3.92 ± 3.40 (n = 49) |
One limit level exceedance was observed for the quarterly dolphin monitoring data between December 2020 to February 2021.
No marine works were undertaken since 30 December 2019, therefore, daily 250 m marine mammal exclusion zone monitoring was not undertaken since 30 December 2019.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. Twelve (12) site inspections were carried out in the reporting quarter on 9, 16, 23 and 28 December 2020; 6, 14, 20 and 27 January 2021 and 3, 10, 17 and 24 February 2021.
Key observations during the site inspections in this reporting period are summarized in Table 2.12.
Table 2.12 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Period
Inspection Date |
Environmental Observations |
Recommendations/ Remarks |
|
9 December 2020 |
Northern Landfall (CLP Substation) Nil.
|
Northern Landfall (CLP Substation) Nil.
|
|
16 December 2020 |
South Ventilation Building carpark (southern landfall) NRMM label on the generator was faded. Chemical containers were observed not placed in drip tray. Over 20 bags of cement bag were observed without proper cover.
|
South Ventilation Building carpark (southern landfall) The Contractor was reminded to replace the NRMM label on the generator. The Contractor was reminded to place chemical containers in drip tray. The Contractor was reminded to cover the cement bag with tarpaulin sheet to avoid windblown dust. |
|
23 December 2020 |
Storage area (Northern landfall) Chemical containers were observed not placed in drip tray. |
Storage area (Northern landfall) The Contractor was reminded to place chemical containers in drip tray. |
|
28 December 2020 |
CLP Substation Chemical container was observed not placed in the drip tray. Northern Landfall (Zone C) Chemical containers were observed not placed in drip tray.
|
CLP Substation The Contractor was reminded to place chemical container in drip tray. Northern Landfall (Zone C) The Contractor was reminded to place chemical container in drip tray. |
|
6 January 2021 |
Northern Landfall (Storage Area) Chemical containers were observed not placed in drip tray. |
Northern Landfall (Storage Area) The Contractor was reminded to place chemical containers in drip tray. |
|
14 January 2021 |
Northern Landfall (Storage Area) Chemical containers were observed not placed in drip tray. CLP Substation Chemical containers were observed not placed in drip tray. |
Northern Landfall (Storage Area) The Contractor was reminded to place chemical containers in drip tray. CLP Substation The Contractor was reminded to place chemical containers in drip tray. |
|
20 January 2021 |
Storage area (Northern landfall) Chemical containers were observed not placed in drip tray. Dust was observed on public road. |
Storage area (Northern landfall) The Contractor was reminded to place chemical containers in drip tray. The Contractor was reminded to water the wheels of the vehicles before leaving the construction site. |
|
27 January 2021 |
Northern Landfall (Storage Area) Chemical containers were observed not placed in drip tray. A faded NRMM label was observed on site. |
Northern Landfall (Storage Area) The Contractor was reminded to place chemical containers in drip tray. The Contractor was reminded to replace the NRMM label. |
|
3 February 2021 |
CLP Substation Empty chemical containers were not disposed properly. |
CLP Substation The Contractor was reminded to dispose chemical containers properly. |
|
10 February 2021 |
CLP Substation Chemicals were not placed in drip tray. Northern Landfall (N6) Oil leakage was observed on site. Northern Landfall (Storage Area) Chemicals were not placed in drip tray. Bags of cement were not covered properly. |
CLP Substation The Contractor was reminded to place the chemicals in drip tray. Northern Landfall (N6) The Contractor was reminded to clean the oil and prevent oil leakage. Northern Landfall (Storage Area) The Contractor was reminded to place the chemicals in drip tray. The Contractor was reminded to cover the cements properly. |
|
17 February 2021 |
Northern Landfall (N6 and Zone C) Chemical containers were observed not placed in drip tray. |
Northern Landfall (N6 and Zone C) The Contractor was reminded to place chemical containers in drip tray. |
|
24 February 2021 |
CLP Substation Chemicals were not placed in drip tray. Northern Landfall (Storage Area) Chemicals were not placed in drip tray. |
CLP Substation The Contractor was reminded to place the chemicals in drip tray. Northern Landfall (Storage Area) The Contractor was reminded to place the chemicals in drip tray. |
|
The Contractor had submitted application form for registration as chemical waste producer under the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.
Wastes generated during this reporting period include mainly construction wastes (inert and non-inert). Reference has been made to the waste flow table prepared by the Contractor (Appendix K). The quantities of different types of wastes are summarized in Table 2.13.
Table 2.13 Quantities of Different Waste Generated in the Reporting Period
Month/Year |
Inert Construction Waste (a) (tonnes) |
Inert Construction Waste Re-used (tonnes) |
Non-inert Construction Waste (b) (tonnes) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
|||||
Category L |
Category M (Mp & Mf) |
Mixed (L+M) |
|||||||||
December 2020 |
554 |
0 |
173 |
0 |
0 |
0 |
0 |
0 |
|||
January 2020 |
1,031 |
0 |
71 |
0 |
0 |
0 |
0 |
0 |
|||
February 2020 |
210 |
0 |
11 |
0 |
0 |
0 |
0 |
0 |
|||
Notes: |
|
||||||||||
(a) Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill. (b) Non-inert construction wastes include general refuse disposed at landfill. (c) Recyclable materials include metals, paper, cardboard, plastics, timber and others. |
|
||||||||||
The Contractor was advised to properly maintain on site C&D materials and waste collection, sorting and recording system, dispose of C&D materials and wastes at designated ground and maximize reuse/ recycle of C&D materials and wastes. The Contractor was also reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.
For chemical waste containers, the Contractor was reminded to treat properly and store temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.
The status of environmental licensing and permit is summarized in Table 2.14 below.
Table 2.14 Summary of Environmental Licensing and Permit Status
License/ Permit |
License or Permit No. |
Date of Issue |
Date of Expiry |
License/ Permit Holder |
Remarks |
Environmental Permit |
EP-354/2009/D |
13 March 2015 |
Throughout the Contract |
HyD |
Application for VEP on 3 March 2015 to supersede EP-354/2009/C |
Construction Dust Notification |
435068 |
27 June 2018 |
Throughout the Contract |
DBJV |
Northern Landfall |
Construction Dust Notification
|
435505 |
12 July 2018 |
Throughout the Contract |
DBJV |
Southern Landfall |
Chemical Waste Registration |
5213-422-D2516-02 |
18 January 2017 |
Throughout the Contract |
DBJV |
Northern Landfall
|
Chemical Waste Registration |
5213-951-D2591-01 |
25 May 2016 |
Throughout the Contract |
DBJV |
Southern Landfall |
Construction Waste Disposal Account |
7018108 |
28 August 2013 |
Throughout the Contract |
DBJV |
Waste disposal in Contract No. HY/2012/08 |
Waste Water Discharge License |
WT00031435-2018 |
2 August 2018 |
31 August 2023 |
DBJV |
Southern Landfall |
Waste Water Discharge License |
WT00034060-2019 |
25 July 2019 |
30 June 2024 |
DBJV |
Northern Landfall (4 Discharge Point) |
Notes: |
|||||
HyD = Highways Department DBJV = Dragages – Bouygues Joint Venture VEP = Variation of Environmental Permit |
In response to the site audit findings, the Contractors carried out all corrective actions.
A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix C. The necessary mitigation measures relevant to this Contract were implemented properly.
For air quality impact monitoring, a total of sixteen monitoring events for both 1-hour TSP and 24-hour TSP were undertaken in which three (3) Action Level exceedances of 1-hour TSP monitoring were recorded (Table 2.15).
Table 2.15 Summary of Exceedances for Air Quality Impact Monitoring in this Reporting Quarter
Station |
Exceedance Level |
Date of Exceedances |
Number of Exceedances |
||
1-hr TSP |
24-hr TSP |
1-hr TSP |
24-hr TSP |
||
AQMS1 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
ASR1 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
ASR5 |
Action Level |
2020-12-10 2021-02-16 2021-02-22 |
- |
3 |
- |
Limit Level |
- |
- |
- |
- |
|
ASR6 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
ASR10 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
Total number of Action level Exceedances: |
3 |
0 |
|||
Total number of Limit level Exceedances: |
0 |
0 |
One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between December 2020 and February 2021.
Cumulative statistics are provided in Appendix J.
The Environmental Complaint Handling Procedure is provided in Figure 2.4.
No environmental complaint was received in this reporting period.
No environmental summons was received in this reporting period.
Statistics on complaints, notifications of summons and successful prosecutions are summarized in Appendix J.
As informed by the Contractor, there was no major activities undertaken in the coming quarterly period.
Potential environmental impacts in the coming quarterly period are expected to be mainly associated with waste management issues.
Impact monitoring for air quality, operational phase water quality monitoring and post construction (operational) phase dolphin monitoring are scheduled to continue for the next reporting period.
This Twenty-ninth Quarterly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 December 2020 to 28 February 2021, in accordance with the Updated EM&A Manual and the requirements of EP-354/2009/D.
Air quality (including 1-hour TSP and 24-hour TSP), operational phase water quality monitoring and post construction (operational) phase dolphin monitoring were carried out in the reporting period. Three (3) Action Level exceedances of 1-hour TSP monitoring were recorded in this reporting period. No Action and Limit Level exceedance of 24-hour TSP monitoring was recorded.
A total of 14 groups of 40 Chinese White Dolphins sightings were recorded during the six sets of surveys in this reporting quarter. All dolphin sightings were made during on-effort search and 11 of the dolphin groups were made on primary lines. One limit level exceedance was observed for the quarterly dolphin monitoring data between December 2020 and February 2021.
Twelve weekly environmental site inspections were carried out in the reporting period. Recommendations on remedial actions provided for the deficiencies identified during the site audits were properly implemented by the Contractor. No non-compliance event was recorded during the reporting period.
The monitoring programme has been reviewed and was considered as adequate to cater for the nature of works in progress. Change to the monitoring programme was thus not recommended at this stage. The monitoring programme will be evaluated as appropriate in the next reporting period. The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.