Executive Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
1.5 Summary of EM&A Programme Requirements
2.1 Air Quality
2.2 Noise Monitoring
2.3 Water Quality Monitoring
2.4 Dolphin Monitoring
2.5 EM&A Site Inspection
2.6 Waste Management Status
2.7 Environmental Licenses and Permits
2.8 Implementation Status of Environmental Mitigation Measures
2.9 Summary of Exceedances of the Environmental Quality Performance Limit
2.10 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
4 Conclusions and recommendations
4.1 Conclusions
List of Appendices
Appendix A Project Organization for Environmental Works
Appendix B Three Month Rolling Construction Programmes
Appendix C Implementation Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary of Action and Limit Levels
Appendix E EM&A Monitoring Schedules
Appendix F Post-Construction Water Quality Monitoring Results and Graphical Presentation
Appendix G Impact Dolphin Monitoring Survey Results
Appendix H Event Action Plan
Appendix I Quarterly Summary of Waste Flow Table
Under Contract No. HY/2012/07, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Southern Connection Viaduct 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). Ramboll Hong Kong Ltd. was employed by the HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A. Further applications for variation of environmental permit (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 southern landfall of TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area under EP-354/2009/D was handed-over to Contract No. HY/2012/07 after completion of reclamation works by Contract No. HY/2010/02 in June 2016.
The construction phase of the Contract commenced on 31 October 2013. The impact monitoring of the EM&A programme, including air quality, noise, water quality and marine ecological monitoring as well as environmental site inspections, commenced on 31 October 2013.
This is the Twenty-fourth Quarterly EM&A Report presenting the EM&A works carried out during the period from 1 September to 30 November 2019 for the Southern Connection Viaduct Section in accordance with the Updated EM&A Manual of the TM-CLK Link Project. As informed by the Contractor, there were no major works undertaken in the reporting period.
A summary of monitoring and audit activities conducted in the reporting period is listed below:
Post-construction water quality monitoring 2 sessions
Dolphin monitoring 6 sessions
Joint Environmental site inspection 13 sessions
Breaches of Action and Limit Levels for Air Quality
No air quality monitoring was undertaken in the reporting period as construction works was substantially completed on 31 July 2019. Notification of temporary suspension of air quality monitoring has been approved by EPD on 28 August 2019.
Breaches of Action and Limit Levels for Noise
No noise monitoring was undertaken in the reporting period as construction works was substantially completed on 31 July 2019. Notification of temporary suspension of noise monitoring has been approved by EPD on 28 August 2019.
Breaches of Action and Limit Levels for Water Quality
No water quality impact monitoring was undertaken in the reporting period as marine works were substantially completed on 21 August 2019. Notification of temporary suspension of water quality monitoring has been approved by EPD on 30 August 2019.
Impact Dolphin Monitoring
One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between September to November 2019. No unacceptable impact from the construction activities of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphins) was noticeable from general observations during the dolphin monitoring in this reporting quarter.
No marine works were undertaken in the reporting period, therefore, daily 250 m marine mammal exclusion zone monitoring was not undertaken during the reporting period.
Environmental Complaints, Non-compliance & Summons
There was no environmental complaint, notification of summons or successful prosecution recorded in the reporting period.
Reporting Change
Upcoming Works for the Next Reporting Period
There were no major works to be undertaken in the coming quarter.
Future Key Issues
Potential environmental impacts in the coming quarterly period are mainly associated with waste management issue.
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 (EP-354/2009A) was issued on 8 December 2010. Further applications for variation of environmental permit (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/2012/07, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Southern Connection Viaduct Section of TM-CLKL (“the Contract”) 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). Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A.
The southern landfall of TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area under EP-354/2009/D was handed-over to Contract No. HY/2012/07 after completion of reclamation works by Contract No. HY/2010/02 in June 2016.
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 |
HyD (Highways Department) |
Project Coordinator |
Stanley Chan |
2762 3406 |
3188 6614 |
|
Senior Engineer |
Steven Shum
|
2762 4133 |
3188 6614 |
SOR (AECOM Asia Company Limited)
|
Chief Resident Engineer |
Daniel Ip |
3553 3800 |
2492 2057 |
|
Resident Engineer
|
Chan Wah Fu |
2293 6434 |
3691 2899 |
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader
|
Y.H. Hui |
3465 2850 |
3465 2899 |
IEC |
Dr. F.C. Tsang |
3465 2851 |
3465 2899 |
|
Contractor (Gammon Construction Limited) |
Environmental Officer
|
Roy Leung |
3520 0387 |
3520 0486 |
|
24-hour Complaint Hotline |
|
9738 4332 |
|
ET (ERM-HK) |
ET Leader |
Dr. Jasmine Ng |
2271 3311 |
2723 5660 |
As informed by the Contractor, there were no major works undertaken in the reporting period.
The locations of the construction activities are shown in Figure 1.3. The Environmental Sensitive Receivers in the vicinity of the Project are shown in Figure 1.4.
The EM&A programme required environmental monitoring for air quality, noise, 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 described in the following sections, which include:
· Monitoring parameters;
· Monitoring schedules for the reporting months and forthcoming months;
· Action and Limit levels for all environmental parameters;
· Event Action Plan;
· Results and observations;
· Environmental mitigation measures, as recommended in the approved EIA Report; and
· Environmental requirement in contract documents.
|
Figure 1.3 Locations of Construction Activities in the Reporting Period
The EM&A programme required environmental monitoring for air quality, noise, 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.
No air quality monitoring was undertaken in the reporting period as construction works was substantially completed on 31 July 2019. Notification of temporary suspension of air quality monitoring has been approved by EPD on 28 August 2019.
No noise monitoring was undertaken in the reporting period as construction works was substantially completed on 31 July 2019. Notification of temporary suspension of noise monitoring has been approved by EPD on 28 August 2019.
No water quality impact monitoring was undertaken in the reporting period as marine works were substantially completed on 21 August 2019. Notification of temporary suspension of water quality monitoring has been approved by EPD on 30 August 2019.
According to the Updated EM&A Manual, a post-construction water quality monitoring shall be carried out upon completion of all marine-based construction activities. Post-construction water quality monitoring was undertaken three days per week for at least 4 weeks in accordance with the Updated EM&A Manual. The proposal for post-construction water quality monitoring was approved by EPD on 19 November 2019. The post-construction water quality monitoring commenced on 27 November 2019.
The locations of the monitoring stations under the Contract are shown in Figure 2.1 and Table 2.1.
Table 2.1 Locations of Water Quality Monitoring Stations and the Corresponding Monitoring Requirements
Station ID |
Type |
Coordinates |
*Parameters, unit |
Depth |
Frequency |
|
|
|
Easting |
Northing |
|
|
|
IS(Mf)9 |
Impact Station (Close to HKBCF construction site) |
813273 |
818850 |
Temperature(°C) pH(pH unit) Turbidity (NTU) Water depth (m) Salinity (ppt) Dissolved Oxygen (DO) (mg/L and % of saturation) · Suspended Solid (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.
|
Impact monitoring: 3 days per week, at mid-flood and mid-ebb tides during the construction period of the Contract. |
IS(Mf)16 |
Impact Station (Close to HKBCF construction site) |
814328 |
819497 |
|||
IS8 (N) |
Impact Station (Close to HKBCF construction site) |
814413 |
818570 |
|||
SR4(N2) |
Sensitive receiver (Tai Ho Inlet) |
814688 |
817996 |
|||
SR4a |
Sensitive receiver |
815247 |
818067 |
|||
CS(Mf)3(N)
|
Control Station |
808814 |
822355 |
|||
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. Water Quality Monitoring Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2 May 2017. Water Quality Monitoring Station SR4 was relocated to SR4(N) since 2 March 2018. Water Quality Monitoring Station SR4(N) was relocated to SR4(N2) since 12 June 2019 Water Quality Monitoring Station IS8 was relocated to IS8(N) since 12 June 2019. |
Table 2.2 summarizes the equipment used in the post-construction water quality monitoring programme.
Table 2.2 Water Quality Monitoring Equipment
Equipment |
Brand and Model |
Multi-parameters (Dissolved Oxygen, Salinity, Turbidity, Temperature, pH) |
YSI ProDSS / YSI 6920 V2 |
|
|
Positioning Equipment |
Furuno GP-170
|
Water Depth Detector |
Lowrance Mark 5x / Garmin Striker 4
|
Water Sampler |
WildCo Vertical Alpha Bottles 1120-2.2L /1120-3.2L Aquatic Research Instrument Vertical/Horizontal Point Water Sampler 2.2L / 3.0L
|
The schedules for post-construction water quality monitoring are provided in Appendix E.
In this reporting period, a total of 2 monitoring events for post-construction water quality monitoring were conducted at monitoring stations in the reporting period. Monitoring results are presented graphically in Appendix F and detailed impact water quality monitoring results were reported in the Seventy-third Monthly EM&A Report.
Impact dolphin monitoring is required to be conducted by a qualified dolphin specialist team to evaluate whether there have been any effects on the Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) from the Contract. In order to fulfil the EM&A requirements and make good use of available resources, the impact line transect dolphin monitoring collected by Contract No. HY/2011/03 HZMB HKLR Section between Scenic Hill and HKBCF and Contract No. HY/2012/08 TMCLKL Northern Connection Sub-Sea Tunnel Section are adopted in the reporting period.
The responsibility for the implementation of dolphin monitoring was changed from Contract No. HY/2011/03 HZMB HKLR Section between Scenic Hill and HKBCF to Contract No. HY/2012/08 TMCLKL Northern Connection Sub-Sea Tunnel Section since October 2019.
The on-going impact line transect dolphin monitoring data collected by Contract No. HY/2012/08 TMCLKL Northern Connection Sub-Sea Tunnel Section on the monthly basis is adopted to avoid duplicates of survey effort since October 2019.
Table 2.3 summarizes the equipment used for the impact dolphin monitoring.
Table 2.3 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. 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.
The impact dolphin monitoring was carried out in the NEL and NWL along the line transect as depicted in Figure 2.2. The co-ordinates of all transect lines are shown in Table 2.4 below ([1]).
Table 2.4 Impact 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 dolphin impact monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix H.
The dolphin monitoring schedules for the reporting period are shown in Appendix E.
A total of 796.79 km of survey effort was collected, with 97.9% of the total survey effort being conducted under favourable weather conditions (i.e. Beaufort Sea State 3 or below with good visibility). Among the two areas, 293.68 km and 503.11 km of survey effort were conducted in NEL and NWL survey areas respectively. The total survey effort conducted on primary lines was 572.39 km, while the effort on secondary lines was 224.40 km. Survey effort conducted on both primary and secondary lines were considered as on-effort survey data. The survey efforts are summarized in Appendix G.
During the six sets of monitoring surveys in September to November 2019, a total of four (4) groups of seven (7) Chinese White Dolphins were sighted. All dolphin sightings were made during on-effort and three (3) on-effort dolphin sightings were made on primary lines. In this quarterly period, all dolphin groups were sighted in NWL, no sighting of dolphin was sighted in NEL. Summary table of the dolphin sightings is shown in Appendix II of Appendix G.
Encounter rates of Chinese White Dolphins deduced from the survey effort and on-effort sighting data from the primary transect lines under favourable conditions (Beaufort 3 or below) in the reporting period with the results presented in Tables 2.5 and 2.6.
Table 2.5 Individual Survey Event Encounter Rates
Survey Area |
Survey period |
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: 4th / 11th Sep 2019 |
0.0 |
0.0 |
Set 2: 17th / 23rd Sep 2019 |
0.0 |
0.0 |
|
Set 3: 8th /9th Oct 2019 |
0.0 |
0.0 |
|
Set 4: 14th/ 29th Oct 2019 |
0.0 |
0.0 |
|
Set 5: 5th / 19th Nov 2019 |
0.0 |
0.0 |
|
Set 6: 27th/ 28th Nov 2019 |
0.0 |
0.0 |
|
NWL |
Set 1: 4th / 11th Sep 2019 |
1.64 |
3.28 |
Set 2: 17th / 23rd Sep 2019 |
0.00 |
0.00 |
|
Set 3: 8th /9th Oct 2019 |
1.68 |
1.68 |
|
Set 4: 14th/ 29th Oct 2019 |
0.00 |
0.00 |
|
Set 5: 5th / 19th Nov 2019 |
1.67 |
1.67 |
|
Set 6: 27th/ 28th Nov 2019 |
0.00 |
0.00 |
Note: Dolphin Encounter Rates are deduced from the six sets of surveys (two surveys in each set) in the reporting period in Northeast (NEL) and Northwest Lantau (NWL)
Table 2.6 Quarterly Average Encounter Rates
Survey Area |
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) |
||
September - November 2019 |
September -November 2011 |
September - November 2019 |
September -November 2011 |
|
Northeast Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest Lantau |
0.83 ± 0.91 |
9.85 ± 5.85 |
1.10 ± 1.34 |
44.66 ± 29.85 |
Note: encounter rates deduced from the baseline monitoring period (September – November 2011) have been recalculated based only on survey effort and on-effort sighting data made along the primary transect lines under favourable conditions
Table 2.7 Comparison of Quarterly Average Group Sizes
|
Average Dolphin Group Size |
|
September to November 2019 |
September - November 2011 |
|
Overall |
1.75 ± 0.96 (n = 4) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
1.75 ± 0.96 (n = 4) |
3.92 ± 3.40 (n = 49) |
Although the dolphins infrequently occurred along the alignment of TM-CLKL Southern Connection Viaduct in the past and during the baseline monitoring period, it is apparent that dolphin usage has been significantly reduced in both NEL and NWL, and many individuals have shifted away from the important habitat around the Brothers Islands.
No marine works were undertaken in the reporting period, therefore, daily 250 m marine mammal exclusion zone monitoring was not undertaken during the reporting period.
Passive Acoustic Monitoring (PAM) was decommissioned in this reporting period as no marine piling works was carried out outside the daylight hours since September 2015.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. Thirteen (13) site inspections were carried out in the reporting quarter on 5, 11, 19 and 26 September, 4, 11, 17, 24 and 31 October and 7, 12, 18 and 25 November 2019.
Key observations during the site inspections in this reporting period are summarized in Table 2.8.
Table 2.8 Specific Observations Identified during the Weekly Site Inspection in this Reporting Period
Inspection Date |
Location & Environmental Observations |
Recommendations/ Remarks |
5 September 2019 |
BCF Muddy water was observed in the U-channel. |
BCF The Contractor was reminded to keep accumulated soil from the U-channel. |
11 September 2019 |
BCF General refuse was observed on the ground. |
BCF The Contractor was reminded to place general refuse in capped rubbish bin. |
19 September 2019 |
BCF Chemical container should be placed in drip tray. |
BCF The Contractor was reminded to place chemical container in drip tray. |
26 September 2019 |
WA4 Nil. |
WA4 Nil. |
4 October 2019 |
Seafront Nil. |
Seafront Nil. |
11 October 2019 |
WA1 Chemical containers were observed not placed in drip tray. Housekeeping should be maintained and accumulated general refuse should be disposed of. |
WA1 The Contractor was reminded to place chemical containers in drip tray. The Contractor was reminded to keep better housekeeping. |
17 October 2019 |
Viaduct D Nil. |
Viaduct D Nil. |
24 October 2019 |
Viaduct C Nil. WA4 Nil. |
Viaduct C Nil. WA4 Nil. |
31 October 2019 |
WA4 Nil. |
WA4 Nil. |
7 November 2019 |
Slope 9SE-B/C9 Nil. |
Slope 9SE-B/C9 Nil. |
12 November 2019 |
E12 Nil. |
E12 Nil. |
18 November 2019 |
Viaduct B Nil. |
Viaduct B Nil. |
25 November 2019 |
Slope 10NW-C/R21 Nil. |
Slope 10NW-C/R21 Nil. |
Wastes generated during this reporting period include mainly construction wastes (inert and non-inert), recyclable materials, chemical waste and marine sediment. Reference has been made to the waste flow table prepared by the Contractor (Appendix I). The quantities of different types of wastes are summarized in Table 2.9.
Table 2.9 Quantities of Different Waste Generated in the Reporting Period
Month/ Year |
Inert C&D Materials (a) (m3) |
Imported Fill (m3) |
Inert Construction Waste Re-used (m3) |
Non-inert Construction Waste (b) (kg) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
||
Category L |
Category M (Mp & Mf) |
Category H |
|||||||
September 2019 |
0 |
0 |
0 |
17,720 |
0 |
0 |
0 |
0 |
0 |
October 2019 |
0 |
0 |
0 |
8,490 |
0 |
0 |
0 |
0 |
0 |
November 2019 |
0 |
0 |
0 |
19,670 |
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, felled trees 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 2.10 below.
Table 2.10 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-353/2009/K |
11-Apr-16 |
N/A |
HyD |
Hong Kong Boundary Crossing Facilities |
Environmental Permit |
EP-354/2009/D |
13-Mar-15 |
N/A |
HyD |
Tuen Mun- Chek Lap Kok Link |
Construction Dust Notification |
361571 |
05-Jul-13 |
N/A |
GCL |
|
Construction Dust Notification |
362093 |
17-Jul-13 |
N/A |
GCL |
For Area 23 |
Chemical Waste Registration |
5213-951-G2380-17 |
12-Jun-14 |
N/A |
GCL |
Viaducts A, B, C, D & E |
Chemical Waste Registration |
5213-961-G2380-13 |
10-Oct-13 |
N/A |
GCL |
Chemical waste produced in Contract No. HY/2012/07 (Area 1 adjacent to Cheng Tung Road, Siu Ho Wan) |
Chemical Waste Registration |
5213-961-G2380-14 |
10-Oct-13 |
N/A |
GCL |
Chemical waste produced in Contract No. HY/2012/07 (Area 2 adjacent to Cheung Tung Road, Pak Mong Village) |
Chemical Waste Registration |
5213-974-G2588-03 |
04-Nov-13 |
N/A |
GCL |
Chemical waste produced in Contract No. HY/2012/07 (WA5 adjacent to Cheung Tung Road, Yam O) |
Construction Waste Disposal Account |
7017735 |
10-Jul-13 |
N/A |
GCL |
- |
Construction Waste Disposal Account |
7019470 |
03-Mar-14 |
N/A |
GCL |
Vessel CHIT Account |
Construction Noise Permit for night works and works in general holidays |
GW-RS0507-19 |
13 June 2019 |
11 December 2019 |
GCL |
Broad Permit for Whole Site Areas |
Construction Noise Permit for night works and works in general holidays |
GW-RW0266-19 |
21 June 2019 |
13 December 2019 |
GCL |
General works at WA5 |
Construction Noise Permit for night works and works in general holidays |
GW-RS0728-19 |
16 August 2019 |
25 October 2019 |
GCL |
Defect Repairing at under-bridge of Viaduct A, B, C and D |
Construction Noise Permit for night works and works in general holidays
|
GW-RS0977-19
|
7 November 2019 |
16 December 2019 |
GCL |
Defect Repairing at under-bridge of Viaduct A, B, C and D |
No air quality and noise impact monitoring was conducted in the reporting period.
Post-construction water quality monitoring was conducted in the reporting period.
One (1) Limit Level exceedance was recorded for impact dolphin monitoring in this reporting quarter. Following the review of the monitoring data and marine works details as per the procedure stipulated in the Event and Action Plan of the Updated EM&A Manual, no unacceptable impact was associated with the construction works under this Contract that may have affected the dolphin usage in the North Lantau region. Investigation findings were detailed in Appendix J.
There was no complaint, notification of summons or successful prosecution recorded in the reporting period.
Statistics on complaint, notification of summons of successful prosecution are summarized in Appendix J.
Potential environmental impacts in the coming quarterly period are mainly associated with waste management issues.
Impact monitoring for dolphin monitoring is scheduled to continue for the next reporting period.
Impact monitoring for air quality and noise were temporarily suspended. EPD have approved the temporary suspension of Air Quality Monitoring and Impact Noise Monitoring on 28 August 2019.
Impact monitoring for marine water quality was temporarily suspended. EPD have approved the temporary suspension of Water Quality Monitoring on 30 August 2019.
Post-construction water quality monitoring is scheduled to continue for the next reporting period.
The monitoring programme has been reviewed and was considered as adequate to cater for the nature of works in progress.
The Twenty-fourth Quarterly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 September to 30 November 2019, in accordance with the Updated EM&A Manual and the requirements of the Environmental Permits (EP-354/2009/D and EP-353/2009/K).
No Air quality (1-hour TSP and 24-hour TSP) and noise monitoring were carried out in the reporting period.
Post-construction water quality monitoring (DO, turbidity and SS) and dolphin monitoring were carried out in the reporting period.
A total of four (4) groups of seven (7) Chinese White Dolphins were sighted during the six sets of survey from September to November 2019. One (1) Limit Level exceedance was recorded for the quarterly dolphin monitoring data between September to November 2019, no unacceptable impact from the activities of this Contract on Chinese White Dolphins was noticeable from the general observations. It is critical to monitor the dolphin usage in North Lantau region in the upcoming quarters, to determine whether the dolphins are continuously affected by the various construction activities in relation to the HZMB-related works, and whether suitable mitigation measure can be applied to revert the situation.
Environmental site inspection was carried out thirteen (13) times in the reporting period. Recommendations on remedial actions were given to the Contractor for the deficiencies identified during the site audits.
There was no complaint, notification of summons or successful prosecution recorded in the reporting period.