CONTENTS
1.4 Contact Information for the Project
1.5 Summary of Construction Activities
1.6 Summary of EM&A Programme Requirements
2....... Summary of EM&A Results
2.1 Environmental Site Inspection
2.3 Marine Water Quality Monitoring
2.3.2 Action and Limit Levels for Marine Water Quality Monitoring
2.4 Pilot Test on the Efficiency of Silt Curtain System
2.5.2 Action and Limit Levels for Marine Mammal Monitoring
2.6 Marine Mammal Exclusion Zone Monitoring
2.7 Records of Operating Speeds and Marine Travel Routes of Working Vessels
2.8 Implementation Status of Environmental Mitigation Measures
2.9 Summary of Exceedances of the Environmental Quality Performance Limit
2.10 Summary of Environmental Complaints, Notification of Summons and Successful Prosecutions
3....... Conclusion and recommendations
Annexes
Annex A Project Organisation
Annex B Construction Programme
Annex C Environmental Mitigation Implementation Schedule (EMIS)
Annex D Status of Statutory Environmental Requirements
Annex F Graphical Presentations of Construction Phase Marine Water Quality Monitoring Results
List of Tables
Table 1.1 Contact Information of Key Personnel
Table 1.2 Contact Information for the Project
Table 1.3 Major Construction Activities Undertaken in the Reporting Period
Table 1.4 Summary of Status for the EM&A Programme under the Updated EM&A Manual
Table 2.1 Key Observations from Site Inspections and Contractor’s Follow-up Actions
Table 2.2 Quantities of Waste Generated for FEP-01/558/2018/A
Table 2.3 Quantities of Waste and Marine Sediment Generated for FEP-02/558/2018/A
Table 2.4 Quantities of Waste and Marine Sediment Generated for FEP-03/558/2018/B
Table 2.5 Location of Marine Water Quality Monitoring Stations
Table 2.6 Action and Limit Levels for Marine Water Quality Monitoring
Table 2.7 Action and Limit Levels for Marine Mammal Monitoring
Table 2.8 Running Quarterly STG and ANI for Finless Porpoise
Table 2.9 Marine Mammal Exclusion Zone Requirements
Table 2.10 Monitoring Results for Marine Mammal Exclusion Zone Monitoring
List of Figures
Figure 1.1 Indicative Location of Key Project Components
Figure 1.2 Location and Works Area of GRS at BPPS
Figure 1.3 Location and Works Area of GRS at LPS
Figure 2.1 Marine Water Quality Monitoring Location
Figure 2.2 Monitoring Locations for Silt Curtain Pilot Test for Jetting Operation
Figure 2.3 Vessel-based Marine Mammal Survey Location
Figure 2.4 Underwater PAM Survey Location
Figure 2.5 Distribution of Finless Porpoise Sightings between July and September 2021
To support the increased use of natural gas in Hong Kong from 2020 onwards, Castle Peak Power Company Limited (CAPCO) and The Hongkong Electric Co., Ltd. (HK Electric) have identified that the development of an offshore liquefied natural gas (LNG) receiving terminal in Hong Kong using Floating Storage and Regasification Unit (FSRU) technology (‘the Project’) presents a viable additional gas supply option that will provide energy security through access to competitive gas supplies from world markets. The Project will involve the construction and operation of an offshore LNG import facility to be located in the southern waters of Hong Kong, a double berth jetty, and subsea pipelines that connect to the gas receiving stations (GRS) at the Black Point Power Station (BPPS) and the Lamma Power Station (LPS). To demarcate the works between different parties, the following Further Environmental Permits (FEPs) were issued for the Project:
§ the double berth jetty at LNG Terminal under the Hong Kong LNG Terminal Limited (HKLTL), joint venture between CAPCO and HK Electric (FEP-01/558/2018/A) – construction commenced on 27 November 2020;
§ the subsea gas pipeline for the BPPS and the associated GRS in the BPPS under CAPCO (FEP-03/558/2018/B) – construction commenced on 23 September 2020; and
§ the subsea gas pipeline for the LPS and the associated GRS in the LPS under HK Electric (FEP-02/558/2018/A) – construction commenced on 13 December 2020.
This is the Quarterly EM&A Summary Report presenting the EM&A works carried out during the period from 1 July to 30 September 2021 for the Project in accordance with the Updated EM&A Manual. A summary of monitoring and audit activities conducted in the reporting period is listed below:
|
Activities |
Number of Sessions |
|
For FEP-01/558/2018/A |
|
|
Marine Mammal Monitoring (vessel-based line transect survey) |
18 |
|
Passive Acoustic Monitoring (C-POD deployment) |
On-going |
|
Marine Mammal Exclusion Zone Monitoring |
During percussive piling works for construction of the Jetty |
|
Environmental Site Inspection |
3 |
|
For FEP-02/558/2018/A |
|
|
Marine Water Quality Monitoring |
21 |
|
Marine Mammal Exclusion Zone Monitoring |
During jetting operation for construction of LPS Pipeline |
|
Environmental Site Inspection |
4 |
|
For FEP-03/558/2018/B |
|
|
Marine Water Quality Monitoring |
10 |
|
Marine Mammal Exclusion Zone Monitoring |
During dredging / jetting operation for construction of BPPS Pipeline |
|
Environmental Site Inspection |
7 |
|
For FEP-02/558/2018/A and FEP-03/558/2018/B |
|
|
Pilot Test on the Efficiency of Silt Curtain System – Cage-type Silt Curtain for Jetting Operation |
1 |
Environmental auditing works, including regular site inspections of construction works conducted by the ET, audit of implementation of Waste Management Plan, and review of the acceptability of operating speeds and marine travel routes of working vessels, including checking of compliance with the approval conditions given by the Director of Environmental Protection for the entry of working vessels within marine parks and the proposed South Lantau Marine Park (SLMP), in pursuant to Condition 3.1 of FEP-01/558/2018/A, Condition 3.4 of FEP-02/558/2018/A and Condition 3.4 of FEP-03/558/2018/B, were conducted in the reporting period, as appropriate. No non-compliance of environmental statutory requirements was identified.
Breaches of Action and Limit Levels
There were no Project-related Action and Limit Level exceedances for marine water quality monitoring in the reporting period.
There were no breaches of Action and Limit Levels for marine mammal monitoring in the reporting period.
Environmental Complaints, Notification of Summons and Successful Prosecution
There were no environmental complaints, notification of summons and successful prosecutions recorded in the reporting period.
Reporting Changes
There were no reporting changes in the reporting period.
Comments, Recommendations and Conclusions for the Quarter
The recommended environmental mitigation measures for the Project were effectively implemented and the EM&A programme undertaken by the ET has effectively monitored the construction activities as well as ensured proper implementation of mitigation measures in the reporting period.
To support the increased use of natural gas in Hong Kong from 2020 onwards, Castle Peak Power Company Limited (CAPCO) and The Hongkong Electric Co., Ltd. (HK Electric) have identified that the development of an offshore liquefied natural gas (LNG) receiving terminal in Hong Kong using Floating Storage and Regasification Unit (FSRU) technology (‘the Project’) presents a viable additional gas supply option that will provide energy security through access to competitive gas supplies from world markets. The Project will involve the construction and operation of an offshore LNG import facility to be located in the southern waters of Hong Kong, a double berth jetty, and subsea pipelines that connect to the gas receiving stations (GRS) at the Black Point Power Station (BPPS) and the Lamma Power Station (LPS).
The Environmental Impact Assessment (EIA) Report for the Project was submitted to the Environmental Protection Department (EPD) of the HKSAR Government in May 2018. The EIA Report (EIAO Register No. AEIAR-218/2018) was approved by EPD and the associated Environmental Permit (EP) (EP-558/2018) was issued in October 2018.
An application for Further Environmental Permits (FEPs) were made on 24 December 2019 to demarcate the works between the different parties. The following FEPs were issued on 17 January 2020 and the EP under EP-558/2018 was surrendered on 5 March 2020.
§ the double berth jetty at LNG Terminal under the Hong Kong LNG Terminal Limited (HKLTL), joint venture between CAPCO and HK Electric (FEP-01/558/2018/A) ([1]) – construction commenced on 27 November 2020;
§ the subsea gas pipeline for the BPPS and the associated GRS in the BPPS under CAPCO (FEP-03/558/2018/B) ([2]) – construction commenced on 23 September 2020; and
§ the subsea gas pipeline for the LPS and the associated GRS in the LPS under HK Electric (FEP-02/558/2018/A) ([3]) – construction commenced on 13 December 2020.
The location of these components is shown in Figures 1.1, 1.2 and 1.3.
This is the Quarterly EM&A Summary Report for the Project which summarises the key findings of the EM&A programme during the reporting period from 1 July to 30 September 2021 for the construction works for the Project in accordance with the Updated EM&A Manual and the requirements of the Further Environmental Permits (FEP-01/558/2018/A, FEP-02/558/2018/A & FEP-03/558/2018/B).
The organisation structure of the Project is shown in Annex A. The key personnel and contact details are summarised in Table 1.1 below.
Table 1.1 Contact Information of Key Personnel
|
Party |
Position |
Name |
Telephone |
|
CAPCO / HKLTL (For FEP-01/558/2018/A and FEP-03/558/2018/B)
|
Senior Environmental Manager |
Dr Helen Chiu |
2596 4116 |
|
HK Electric / HKLTL (For FEP-01/558/2018/A and FEP-02/558/2018/A)
|
Head of Mechanical Engineering, Projects Division
|
Norman Chan
|
3143 3819
|
|
Environmental Team (ET) (ERM-Hong Kong, Limited)
|
ET Leader
|
Raymond Chow
|
2271 3281 |
|
Independent Environmental Checker (IEC) (Mott MacDonald Hong Kong Limited)
|
IEC |
Lydia Chak |
2585 8473 |
|
Contractor (CNOOC Offshore Oil Engineering Co. Ltd.) |
Environmental Manager |
H Y Tang |
6111 5789
|
|
Environmental Officer |
Kelvin Cheung |
9060 1020 |
|
|
|
|||
The contact information for the Project is provided in Table 1.2. The public can contact the project proponents through the following channel for any enquiries and comments on the environmental monitoring data and related information of the Project.
Table 1.2 Contact Information for the Project
|
Channel |
Contact Information |
|
|
The programme of the construction is shown in Annex B.
As informed by the Contractor, details of the major construction activities undertaken in the reporting period are listed in Table 1.3 below:
Table 1.3 Major Construction Activities Undertaken in the Reporting Period
|
FEP |
Land-based Works |
Marine-based Works |
|
FEP-01/558/2018/A |
§ Nil |
§ Pile installation |
|
FEP-02/558/2018/A |
§ Nil |
§ Post-trenching |
|
FEP-03/558/2018/B |
§ Excavation, drainage, backfilling and permanent paving works § Pipe rack – erection and assembly, and reinforced concrete foundation works § Building superstructure works |
§ Sheet pile installation § Pipelaying works § Pre-trenching § Post-trenching |
The status of EM&A Programme for all environmental aspects required under the Updated EM&A Manual are presented in Table 1.4. The requirements of relevant environmental monitoring, including monitoring parameters, Action and Limit Levels, Event and Action Plan(s), environmental mitigation measures, etc. are presented in Section 2.
Table 1.4 Summary of Status for the EM&A Programme under the Updated EM&A Manual
|
Aspects |
Relevant FEP(s) |
Status |
|
Water Quality |
||
|
Baseline Monitoring |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ Completed |
|
Efficiency of Silt Curtain System |
FEP-02/558/2018/A FEP-03/558/2018/B |
§ Completed for cage-type silt curtain for dredging operation (under FEP-02/558/2018/A and FEP-03/558/2018/B) § Completed for cage-type silt curtain for jetting operation (under FEP-02/558/2018/A and FEP-03/558/2018/B) § To be implemented upon early stage of construction works for jetting operation for floating silt curtain (under FEP-02/558/2018/A and FEP-03/558/2018/B) |
|
Construction Phase Monitoring |
FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going for dredging / jetting operations for FEP-03/558/2018/A and FEP-03/558/2018/B |
|
Post-Construction Monitoring |
FEP-02/558/2018/A FEP-03/558/2018/B |
§ To be implemented upon completion of construction works for the Project |
|
Monitoring for Hydrotesting for the Subsea Gas Pipelines |
FEP-02/558/2018/A FEP-03/558/2018/B |
§ To be implemented during hydrotesting for the subsea gas pipelines |
|
First-year of LNG Terminal Operation |
FEP-01/558/2018/A |
§ To be implemented during LNG Terminal operation |
|
Maintenance Dredging |
FEP-01/558/2018/A |
§ To be implemented during maintenance dredging |
|
Waste Management |
||
|
Audit of Waste Management Practice |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going |
|
Ecology |
||
|
Baseline Monitoring (Vessel-based Line Transect Survey and Passive Acoustic Monitoring) |
FEP-01/558/2018/A
|
§ Completed |
|
Construction Phase Monitoring (Vessel-based Line Transect Survey and Passive Acoustic Monitoring) |
FEP-01/558/2018/A |
§ On-going (for percussive piling works for construction of the Jetty between July and December) |
|
Post-Construction Monitoring (Vessel-based Line Transect Survey and Passive Acoustic Monitoring) |
FEP-01/558/2018/A |
§ To be implemented upon completion of construction works for the Project |
|
Marine Mammal Exclusion Zone Monitoring |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going for FEP-01/558/2018/A (marine mammal exclusion zone with 500m radius) § On-going for marine dredging / jetting operations for FEP-03/558/2018/A and FEP-03/558/2018/B (marine mammal exclusion zone with 250m radius) |
|
Environmental Site Inspection |
||
|
Regular Site Inspection |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going |
|
Records of Operating Speeds and Marine Travel Routes for Working Vessels |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going |
|
Environmental Log Book |
FEP-01/558/2018/A FEP-02/558/2018/A FEP-03/558/2018/B |
§ On-going
|
The environmental licenses and permits, including further environmental permits, registration as chemical waste producer, construction noise permits, wastewater discharge license, marine dumping permits, etc., which were valid in the reporting period. No non-compliance with environmental statutory requirements, including FEP conditions (status of submission) under the EIA Ordinance was identified. The status of statutory environmental requirements is presented in Annex D.
The potential environmental impacts arising from the major construction activities undertaken in the reporting period provided in Table 1.3 were mainly associated with dust emission from construction activities and stockpiles, waste management, site surface runoff, wastewater discharge, and elevation in suspended solids and disturbance to marine mammals due to marine-based works. There were no Project-related Action and Limit Level exceedances and no non-compliance of environmental statutory requirements identified for the environmental monitoring and auditing works conducted in the reporting period, including regular site inspections of construction works conducted by the ET, audit of implementation of Waste Management Plan, review of the acceptability of operating speeds and marine travel routes of working vessels, and checking of compliance with the approval conditions given by EPD for allowing the entry of working vessels within marine parks and the proposed SLMP in pursuant to Condition 3.1 of FEP-01/558/2018/A, Condition 3.4 of FEP-02/558/2018/A and Condition 3.4 of FEP-03/558/2018/B, as appropriate. The recommended environmental mitigation measures were properly implemented in the reporting period. Excessive variation between the EIA study predictions and the EM&A monitoring results was not found and therefore no investigation and follow-up procedures were considered necessary.
The environmental mitigation implementation schedule (EMIS) is presented in Annex C.
The EM&A programme for the Project required environmental monitoring for marine water quality and marine mammals as well as environmental site inspections for air quality, construction noise, water quality, waste management, marine ecology, landscape and visual, and hazard to life impacts. As presented in Section 1.6, environmental site inspections and audit on waste management practice, marine water quality monitoring, including pilot test on the efficiency of silt curtain system, marine mammal monitoring (i.e. vessel-based line transect survey and passive acoustic monitoring) and marine mammal exclusion zone monitoring were conducted during the reporting period, and the findings are presented below.
Regular environmental site inspections were carried out with the Contractor and Project Proponents to confirm the implementation of appropriate environmental protection and pollution control mitigation measures for air quality, construction noise, water quality, waste management, marine ecology, landscape and visual, and hazard to life impacts under the Project. In the reporting period, 14 environmental site inspections were carried out on 7, 14, 21, 29 July, 4, 12, 18, 25 August, 2, 9, 16, 21 and 30 September 2021. The Independent Environmental Checker (IEC) attended the environmental site inspections as the IEC audits on 7, 14, 21 July, 4, 12, 18, 25 August, 2, 9, 16 and 21 September 2021 during the reporting period. The key observations from site inspections and Contractor’s follow-up actions are summarized in Table 2.1. The environmental mitigation implementation schedule (EMIS) is presented in Annex C.
Table 2.1 Key Observations from Site Inspections and Contractor’s Follow-up Actions
|
Item |
Description |
Contractor’s Follow-up Action(s) Taken |
|
FEP-01/558/2018/A |
||
|
July - September 2021 |
||
|
- |
Nil observation. |
N/A |
|
FEP-02/558/2018/A |
||
|
July - September 2021 |
||
|
1 |
Dark smoke emission from anchoring boat for LPS Pipeline construction works was observed. The Contractor was reminded to regularly maintain all on-site plants and/or equipment, including working vessels, for construction in a good condition. |
Maintenance works for the working vessel was carried out and no dark smoke was observed. |
|
FEP-03/558/2018/B |
||
|
July - September 2021 |
||
|
2 |
An air compressor being affixed to an exemption label without proper colour as required by the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation was observed. The Contractor was reminded to affix proper label to the Non-road Mobile Machinery (NRMM) in accordance with the labelling requirements as per the Regulation. |
Proper label was affixed to NRMM. |
|
3 |
The floating silt curtain in the vicinity of starboard of the crane barge at the Pipeline Shore Approach at BPPS was loosened. The Contractor was reminded to maintain the integrity of the floating silt curtain. |
The integrity of floating silt curtain was fixed. |
|
4 |
Chemical containers were placed on deck armour of the crane barge without provision of drip trays. The Contractor was reminded to provide drip trays to chemical containers. |
Chemical containers were cleared properly. |
|
5 |
General refuse was scattered within various works areas. The Contractor was reminded to provide enclosed bins for collection of general refuse on site. |
Enclosed bins were provided on site. |
|
6 |
Dark smoke emission from anchoring boat was observed. The Contractor was reminded to regularly maintain all on-site plants and/or equipment, including working vessels, for construction in a good condition. |
Maintenance works for the working vessel was carried out and no dark smoke was observed. |
|
7 |
Fugitive dust was produced while an excavator was moving towards the works area. The Contractor was reminded to provide wheel washing at the entrance/exit of works area. |
Wheel washing was provided at the entrance/exit of works area. |
|
8 |
Construction Noise Permit (CNP) was missing at the site entrance/exit. The Contractor was reminded to display the valid CNP. |
Valid CNP was displayed at the site entrance/exit. |
|
|
||
Waste management audits were performed with reference to the Waste Management Checklists for the corresponding Waste Management Plans detailed in Annex E of the associated Monthly EM&A Reports during the regular environmental site inspections carried out in the reporting period. No non-compliance for Contractor’s waste management practices was identified during the audits.
The quantities of different types of waste and marine sediment generated for the three FEPs are summarised in Tables 2.2, 2.3 and 2.4 with reference to the waste flow tables prepared by the Contractor. General refuse was generated under FEP-01/558/2018/A and FEP-02/558/2018/A, and general refuse, marine sediment and inert C&D materials (public fill) were generated under FEP-03/558/2018/B in the reporting period. Detailed waste flow tables can be referred to Annex F of the associated Monthly EM&A Reports for the reporting period.
Table 2.2 Quantities of Waste Generated for FEP-01/558/2018/A
|
Inert C&D Materials Generated (in ‘000kg) |
|||||||||||
|
Month/Year |
Total Quantity Generated |
Hard Rock and Large Broken Concrete |
Reused in the Contract |
Reused in other Projects |
Disposed as Public Fill |
Imported Fill |
|||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
|||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
|||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
|||||
|
C&D Wastes Generated |
|||||||||||
|
Month/Year |
Metals (in ‘000kg3) |
Paper / Cardboard Packaging (in ‘000kg3) |
Plastics (in ‘000kg3) |
Chemical Waste |
Other (e.g. general refuse) (in ‘000kg) |
|
|||||
|
(in ‘000kg3) |
(in ‘000L) |
|
|||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
5.140 |
|
||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
8.000 |
|
||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
19.030 |
|
||||
Table 2.3 Quantities of Waste and Marine Sediment Generated for FEP-02/558/2018/A
|
Inert C&D Materials Generated (in ‘000kg) |
|
|||||||||||||||||
|
Month/Year |
Total Quantity Generated |
Hard Rock and Large Broken Concrete |
Reused in the Contract |
Reused in other Projects |
Disposed as Public Fill |
Imported Fill |
||||||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
||||||||||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
||||||||||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
||||||||||||
|
C&D Wastes Generated |
|
|||||||||||||||||
|
Month/Year |
Metals (in ‘000kg3) |
Paper / Cardboard Packaging (in ‘000kg3) |
Plastics (in ‘000kg3) |
Chemical Waste |
Other (e.g. general refuse) (in ‘000kg) |
|
||||||||||||
|
(in ‘000kg3) |
(in ‘000L) |
|
||||||||||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|||||||||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
5.46 |
|
|||||||||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
4.92 |
|
|||||||||||
|
Marine Sediment Generated (in ‘000m3) |
|
|||||||||||||||||
|
Month/Year |
Total Quantity of Type L Generated |
Total Quantity of Type M Generated |
Reused in the Contract |
Reused in other Projects |
Open Sea Disposal |
|||||||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
|||||||||||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
|||||||||||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
|||||||||||||
Table 2.4 Quantities of Waste and Marine Sediment Generated for FEP-03/558/2018/B
|
Inert C&D Materials Generated (in ‘000kg) |
|
||||||||||||||||||
|
Month/Year |
Total Quantity Generated |
Hard Rock and Large Broken Concrete |
Reused in the Contract |
Reused in other Projects |
Disposed as Public Fill |
Imported Fill |
|||||||||||||
|
Jul 2021 |
1,211.060 |
0 |
0 |
0 |
1,211.060 |
0 |
|||||||||||||
|
Aug 2021 |
2,269.600 |
0 |
0 |
0 |
2,269.600 |
0 |
|||||||||||||
|
Sep 2021 |
767.130 |
0 |
0 |
0 |
767.130 |
0 |
|||||||||||||
|
C&D Wastes Generated |
|
||||||||||||||||||
|
Month/Year |
Metals (in ‘000kg3) |
Paper / Cardboard Packaging (in ‘000kg3) |
Plastics (in ‘000kg3) |
Chemical Waste |
Other (e.g. general refuse) (in ‘000kg) |
|
|||||||||||||
|
(in ‘000kg3) |
(in ‘000L) |
|
|||||||||||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
24.720 |
|
||||||||||||
|
Aug 2021 |
0 |
0 |
0 |
0 |
0 |
40.550 |
|
||||||||||||
|
Sep 2021 |
0 |
0 |
0 |
0 |
0 |
53.990 |
|
||||||||||||
|
Marine Sediment Generated (in ‘000m3) |
|
||||||||||||||||||
|
Month/Year |
Total Quantity of Type L Generated |
Total Quantity of Type M Generated |
Reused in the Contract |
Reused in other Projects |
Open Sea Disposal |
|
|||||||||||||
|
Jul 2021 |
0 |
0 |
0 |
0 |
0 |
|
|||||||||||||
|
Aug 2021 |
0 |
0.556 |
0 |
0 |
0.556 |
|
|||||||||||||
|
Sep 2021 |
0.282 |
0.114 |
0 |
0 |
0.396 |
|
|||||||||||||
|
|
|
||||||||||||||||||
In accordance with the Updated EM&A Manual, marine water quality monitoring shall be undertaken at the monitoring stations as shown in Figure 2.1 and Table 2.5 three times a week at both mid-ebb and mid-flood tides during periods when there are dredging / jetting operations during construction phase of BPPS Pipeline or LPS Pipeline. The interval between two sets of monitoring would not be less than 36 hours. Two replicates of in-situ measurements and samples were collected at each monitored water depth of each monitoring stations. Levels of dissolved oxygen (DO), pH value, salinity, temperature and turbidity were measured in-situ whereas the level of suspended solids (SS) were determined by a HOKLAS accredited laboratory. The detailed methodology is presented in the Updated EM&A Manual.
Table 2.5 Location of Marine Water Quality Monitoring Stations
|
Station |
Easting |
Northing |
Description |
|
Group 1 – During construction at the pipeline shore approach at LPS (KP17.4 - 18.2), West Lamma Channel (KP14.5 - 17.4) |
|||
|
IM1 |
829453 |
806896 |
Impact Station for Coastline of South Lamma |
|
IM2 |
828235 |
810347 |
Impact Station for Coastline of North Lamma |
|
E1 |
827317 |
811510 |
Control Station for Ebb Tide |
|
F1 |
827892 |
804243 |
Control Station for Flood Tide |
|
Group 2 – During construction at the Double Berth Jetty to West Lamma Channel (KP0.0 - 14.5) |
|||
|
IM3 |
820683 |
805931 |
Impact Station for Coastline of South Cheung Chau |
|
IM4 |
816997 |
805153 |
Impact Station for Coastline of South Shek Kwu Chau |
|
IM5 |
814068 |
804100 |
Boundary of Proposed South Lantau Marine Park (MP) |
|
IM6 |
814073 |
802029 |
Boundary of Proposed South Lantau MP |
|
E2 |
813367 |
808213 |
Control Station for Ebb Tide |
|
F2 |
822532 |
802161 |
Control Station for Flood Tide |
|
F3 |
815032 |
801161 |
Control Station for Flood Tide |
|
Group 3 – During construction at the Jetty Approach (KP0.0 - 5.0), South of Soko Islands (KP5.0 - 8.9), Southwest of Soko Islands (KP8.9 - 12.1) |
|||
|
IM6 |
814073 |
802029 |
Boundary of Proposed South Lantau MP |
|
IM7 |
811652 |
802029 |
Boundary of Proposed South Lantau MP |
|
IM8 |
810833 |
801430 |
Boundary of Proposed South Lantau MP |
|
IM9 |
807101 |
801595 |
Boundary of Proposed South Lantau MP |
|
E3 |
802686 |
804123 |
Control Station for Ebb Tide |
|
F3 |
815032 |
801161 |
Control Station for Flood Tide |
|
Group 4 – During construction at the Adamasta Channel (KP12.1 - 15.6), Southwest Lantau (KP15.6 - 21.3) |
|||
|
IM10 |
803145 |
806407 |
Boundary of Southwest Lantau MP |
|
IM11A |
801914 |
806510 |
Boundary of Southwest Lantau MP |
|
IM12 |
801041 |
807024 |
Boundary of Southwest Lantau MP |
|
IM13 |
800386 |
810750 |
Boundary of Southwest Lantau MP |
|
IM14 |
801376 |
810750 |
Boundary of Southwest Lantau MP |
|
E4 |
801571 |
811923 |
Control Station for Ebb Tide |
|
F4 |
809058 |
806567 |
Control Station for Flood Tide |
|
Group 5 – During construction at the West of Tai O to West of HKIA (KP21.3 - 31.5) |
|||
|
IM15 |
804820 |
821110 |
Boundary of Sha Chau and Lung Kwu Chau MP |
|
E5 |
804634 |
822606 |
Control Station for Ebb Tide |
|
F5 |
805185 |
816591 |
Control Station for Flood Tide |
|
Group 6 – During construction at the West of HKIA to Lung Kwu Chau (KP31.5 - 37.5) |
|||
|
IM15 |
804820 |
821110 |
Boundary of Sha Chau and Lung Kwu Chau MP |
|
IM17 |
804865 |
827855 |
Boundary of Sha Chau and Lung Kwu Chau MP |
|
IM16A |
805039 |
824343 |
Coral Colonies at Pak Chau |
|
E6 |
805418 |
832113 |
Control Station for Ebb Tide |
|
F5 |
805185 |
816591 |
Control Station for Flood Tide |
|
Group 7 – During construction at the Lung Kwu Chau to Urmston Anchorage (37.5 - 41.1), Urmston Road (KP41.1 - 42.9) |
|||
|
IM17 |
804865 |
827855 |
Boundary of Sha Chau and Lung Kwu Chau MP |
|
IM18 |
806220 |
827890 |
Boundary of Sha Chau and Lung Kwu Chau MP |
|
IM19 |
807274 |
829250 |
Impact Station for Coastline of Lung Kwu Tan |
|
E6 |
805418 |
832113 |
Control Station for Ebb Tide |
|
F6 |
808812 |
824266 |
Control Station for Flood Tide |
|
E5 |
804634 |
822606 |
Control Station for Flood Tide |
|
Group 8 – During construction at the West of BPPS (KP42.9 - 44.9), Pipeline shore approach at BPPS (KP44.9 - 45.0) |
|||
|
IM19 |
807274 |
829250 |
Impact Station for Coastline of Lung Kwu Tan |
|
IM20A |
809445 |
831728 |
Impact Station for Coastline of Deep Bay |
|
IM21A |
808879 |
830900 |
Coral Colony at Artificial Seawall at BPPS |
|
IM22A |
808703 |
830717 |
Coral Colony at Artificial Seawall at BPPS |
|
E7A |
808313 |
833524 |
Control Station for Ebb Tide |
|
F6 |
808812 |
824266 |
Control Station for Flood Tide |
|
Note: Alternative monitoring stations (E7A, IM11A, IM16A, IM20A, IM21A & IM22A) were proposed by the ET in consultation with the IEC and approved by EPD in accordance with the provision in Section 5.1 and Section 5.2.5 of the Updated EM&A Manual. |
|||
The Action and Limit Levels for marine water quality monitoring have been established based on the baseline marine water quality monitoring data in accordance with the Updated EM&A Manual. Action and Limit Levels of key assessment parameters for construction phase marine water quality monitoring including DO, turbidity and SS are summarised in Table 2.6.
Table 2.6 Action and Limit Levels for Marine Water Quality Monitoring
|
Parameter |
Action Level |
Limit Level |
|
|
Group 1 – During construction at the pipeline shore approach at LPS (KP17.4 - 18.2), West Lamma Channel (KP14.5 - 17.4) |
|||
|
DO in mg L-1 a |
Surface and Middle 4.2 mg L-1
Bottom 2.4 mg L-1 |
Surface and Middle 2.9 mg L-1
Bottom 1.6 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
14.4 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
19.9 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
20.8 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
29.6 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 2 – During construction at the Double Berth Jetty to West Lamma Channel (KP0.0 - 14.5) |
|||
|
DO in mg L-1 a |
Surface and Middle 3.4 mg L-1
Bottom 1.8 mg L-1 |
Surface and Middle 2.4 mg L-1
Bottom 1.4 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
17.1 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
26.8 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
25.7 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
37.1 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 3 – During construction at the Jetty Approach (KP0.0 - 5.0), South of Soko Islands (KP5.0 - 8.9), Southwest of Soko Islands (KP8.9 - 12.1) |
|||
|
DO in mg L-1 a |
Surface and Middle 4.1 mg L-1
Bottom 2.7 mg L-1 |
Surface and Middle 3.0 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
17.0 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
30.9 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
22.3 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
36.9 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 4 – During construction at the Adamasta Channel (KP12.1 - 15.6), Southwest Lantau (KP15.6 - 21.3) |
|||
|
DO in mg L-1 a |
Surface and Middle 3.4 mg L-1
Bottom 2.8 mg L-1 |
Surface and Middle 2.5 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
63.1 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
165.7 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
75.4 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
121.8 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 5 – During construction at the West of Tai O to West of HKIA (KP21.3 - 31.5) |
|||
|
DO in mg L-1 a |
Surface and Middle 4.6 mg L-1
Bottom 4.0 mg L-1 |
Surface and Middle 4.0 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
31.9 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
46.6 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
64.9 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
72.5 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 6 – During construction at the West of HKIA to Lung Kwu Chau (KP31.5 - 37.5) |
|||
|
DO in mg L-1 a |
Surface and Middle 4.4 mg L-1
Bottom 3.9 mg L-1 |
Surface and Middle 3.9 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
30.7 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
47.0 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
49.2 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
74.0 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 7 – During construction at the Lung Kwu Chau to Urmston Anchorage (37.5 - 41.1), Urmston Road (KP41.1 - 42.9) |
|||
|
DO in mg L-1 a |
Surface and Middle 3.8 mg L-1
Bottom 3.1 mg L-1 |
Surface and Middle 3.4 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
34.5 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
79.2 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
37.8 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
98.2 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Group 8 – During construction at the West of BPPS (KP42.9 - 44.9), Pipeline shore approach at BPPS (KP44.9 - 45.0) |
|||
|
DO in mg L-1 a |
Surface and Middle 4.3 mg L-1
Bottom 3.6 mg L-1 |
Surface and Middle 3.4 mg L-1
Bottom 2.0 mg L-1 |
|
|
Turbidity in NTU (Depth-averaged b) c |
34.3 NTU, and 120% of the relevant control station's turbidity at the same tide of the same day |
58.5 NTU, and 130% of the relevant control station's turbidity at the same tide of the same day |
|
|
SS in mg L-1 (Depth-averaged b) c |
42.4 mg L-1, and 120% of the relevant control station's SS at the same tide of the same day |
78.2 mg L-1, and 130% of the relevant control station's SS at the same tide of the same day |
|
|
Notes: a. For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits. b. “Depth-averaged” is calculated by taking the arithmetic means of reading of all three depths. c. For Turbidity and SS, non-compliance of the water quality limits occurs when monitoring result is higher than the limits. |
|||
The Event and Action Plan for marine water quality monitoring can be referred to the Updated EM&A Manual.
A total of 31 monitoring events for construction phase marine water quality monitoring were conducted for construction of BPPS Pipeline and LPS Pipeline within the works area(s) for the associated marine-based activities in the reporting period. Graphical presentations are provided in Annex F. There were no Project-related Action and Limit Level exceedances for marine water quality monitoring in the reporting period.
According to Condition 2.10 of FEP-02/558/2018/A and FEP-03/558/2018/B, and Section 5.3.2 of the Updated EM&A Manual, pilot tests on the efficiency of silt curtain system shall be conducted during the early stage of construction to confirm the removal efficiency of the silt curtains. The pilot tests on the efficiency of silt curtain system include i) testing of silt removal efficiency of 75% or higher for silt curtain at grab dredger; ii) testing of silt removal efficiency of 85% or higher for silt curtain at jetting machine; and iii) testing of silt removal efficiency of 80% or higher for double layer silt curtain at sensitive receivers, as determined by the difference between the SS levels near marine works area and that outside silt curtain in the event of the dredging / jetting operations being actively undertaken for BPPS Pipeline and/or LPS Pipeline. The detailed methodology of the pilot tests on the efficiency of silt curtain system is presented in the approved Silt Curtain Deployment Plans for the corresponding FEPs.
Pilot test on the efficiency of cage-type silt curtain at jetting machine was conducted on 26 August 2021 during the jetting operation of LPS Pipeline. Three rounds of monitoring (i.e. Rounds 1, 2 & 3) for the pilot test covering ebb and flood tides were conducted when jetting operation was operated at or close to the maximum productivity for LPS Pipeline. The jetting work rate was about 29.08 m/hr, which is equivalent to 698 m/day for 24 hours work. The monitoring stations for the pilot test are presented in Figure 2.2.
The results of the pilot test have demonstrated that the tested cage-type silt curtain for jetting operation is capable of achieving an efficiency greater than 85% as assumed in the approved EIA Report for the HKOLNG Terminal project. As such, the proposed cage-type silt curtain is effective for the jetting operation for the Project to minimize water quality impacts and no further measures/recommendations are required. As similar cage-type silt curtain and jetting machine are used for the construction of the BPPS and LPS Pipelines, this pilot test results of cage-type silt curtain for jetting works are applicable for the subsea gas pipeline for BPPS under FEP-03/558/2018/B and the subsea gas pipeline for LPS under FEP-02/558/2018/A. The detailed monitoring results can be referred to Section 2.4 of the Monthly EM&A Report for August 2021.
In accordance with the Updated EM&A Manual, vessel-based marine mammal survey by means of systematic line-transect boat survey was undertaken to examine the distribution and encounter rate of Finless Porpoise (FP) in southern Lantau where a majority of Project construction works would take place. Survey transects covered three survey areas for line-transect boat surveys, namely Southwest Lantau (SWL), Southeast Lantau (SEL) and Lamma (LM) are presented in Figure 2.3. The methodology of the survey is consistent and compatible with that adopted in the EIA baseline surveys as well as the long-term marine mammal monitoring programme conducted by AFCD since 1995 to allow potential comparisons and pooling data for analysis. Vessel-based line transect marine mammal surveys are conducted during construction of the LNG Terminal. Each transect line is surveyed twice per month. The detailed methodology is presented in the Updated EM&A Manual.
In accordance with the Updated EM&A Manual, underwater PAM survey using C-POD (Cetacean-Porpoise Detector) was conducted at five locations as presented in Figure 2.4. C-PODs are left in place during construction of the LNG Terminal. Such duration should allow for a robust record of marine mammal usage of the area to be obtained and allow for the inter-seasonal differences already known for finless porpoises. The C-PODs have to be serviced every two to four months, subject to review on an as-needed basis, to download accumulated data and replace batteries.
The Action and Limit Levels for marine mammal monitoring are established using encounter rate calculated from the six-month baseline vessel-based line transect surveys from the three survey areas as a whole in accordance with the Updated EM&A Manual. The combined baseline encounter rate will be used to compare with the encounter rate obtained during construction phase monitoring calculated from last three month’s monitoring data (i.e. running quarterly value). This approach would allow natural seasonal fluctuations in FP encounter rate to be accounted for, and allow data to be reviewed every month such as appropriate remedial actions could be taken timely if the threshold values are triggered. The Action and Limit Levels are provided in Table 2.7.
Table 2.7 Action and Limit Levels for Marine Mammal Monitoring
|
Monitoring Area |
Action Level |
Limit Level |
|
SWL, SEL and LM as a whole |
Running quarterly STG < 1.12 & ANI < 2.18 |
Two consecutive running quarterly STG < 1.12 & ANI < 2.18 |
|
Notes: STG = Encounter Rate of Number of Porpoise Sightings ANI = Encounter Rate of Number of Porpoises Action / Limit Levels will be triggered if both STG and ANI fall below the criteria. |
||
The Event and Action Plan for marine mammal monitoring can be referred to relevant Annexes of the associated Monthly EM&A Reports for the reporting period.
A total of 18 vessel-based line transect surveys were conducted during the reporting period. The FPs sighted in the three survey areas, SWL, SEL and LM, in the reporting period are presented in Figure 2.5.
The running quarterly STG and ANI for the combined survey areas from SWL, SEL and LM during the reporting period are summarised in Table 2.8.
Table 2.8 Running Quarterly STG and ANI for Finless Porpoise
|
Survey Period |
On-effort (km) |
No. of Sighting |
No. of Porpoise |
STG |
ANI |
Running STG |
Running ANI |
|
Jul 2021 |
375.86 |
0 |
0 |
0.00 |
0.00 |
0.83 |
2.95 |
|
Aug 2021 |
379.00 |
2 |
10 |
0.53 |
2.64 |
||
|
Sep 2021 |
331.64 |
7 |
22 |
2.11 |
6.63 |
||
|
Notes: Only data collected at Beaufort Sea State 2 or below were included for encounter rate analysis. Running STG and Running ANI were calculated by combining three consecutive survey months data (i.e. running STG/ANI for Sep 2021 were calculated by combining the data in Jul – Sep 2021). |
|||||||
The running quarterly values of encounter rate in terms of STG and ANI were 0.83 and 2.95, respectively. Therefore, there were no breaches of Action and Limit Levels for marine mammal monitoring in the reporting period.
Five C-POD units have been deployed at the five locations since the commencement of construction for FEP-01/558/2018/A on 27 November 2020. These units will be serviced every two to four months, subject to review on an as-needed basis, to download accumulated data and replace batteries. The latest round of C-POD servicing was conducted in early July 2021.
According to Condition 3.7 of FEP-01/558/2018/A, Condition 3.7 of FEP-02/558/2018/A, Condition 3.8 of FEP-03/558/2018/B, Section 9.11.3 of the approved EIA Report and Section 7 of the Updated EM&A Manual, marine mammal exclusion zone monitoring is required during dredging / jetting operations for construction of BPPS Pipeline or LPS Pipeline and during percussive piling works for construction of the Jetty. Marine mammal exclusion zone requirements are presented in Table 2.9.
Table 2.9 Marine Mammal Exclusion Zone Requirements
|
Activity |
Exclusion Zone |
Requirement |
|
Marine dredging or jetting operations for construction of BPPS Pipeline or LPS Pipeline |
250m |
Before pipeline dredging or jetting commence, the exclusion zone must have been continuously clear of marine mammals for 30 minutes. During pipeline dredging/ jetting, if marine mammals are spotted within the exclusion zone, pipeline dredging/ jetting works will cease and will not resume until the observer confirms that the zone has been continuously clear of marine mammals for a period of 30 minutes. |
|
Percussive piling works for construction of the Jetty |
500m |
Before percussive piling commences, the exclusion zone must have been continuously clear of marine mammals for 30 minutes. During percussive piling, if marine mammals are spotted within the exclusion zone, percussive piling works will cease and will not resume until the observer confirms that the zone has been continuously clear of marine mammals for a period of 30 minutes. |
Marine mammal exclusion zone monitoring was conducted during the reporting period when marine dredging / jetting operations for construction of BPPS / LPS Pipeline and percussive piling works for construction of the Jetty were undertaken. No sightings of marine mammals were observed during marine mammal exclusion zone monitoring in the reporting period. The monitoring results for marine mammal exclusion zone monitoring in the reporting period is summarised in Table 2.10.
Table 2.10 Monitoring Results for Marine Mammal Exclusion Zone Monitoring
|
Date |
Active works activities |
Monitoring results |
|
2, 3, 5, 7, 12, 14-17 Jul 2021 |
Percussive piling works for construction of the Jetty |
No sightings of marine mammals |
|
5-7, 9, 11, 13, 14, 21, 23-27 Aug 2021 |
||
|
13, 16, 18 Sep 2021 |
||
|
5, 6, 8-18, 22-26 Jul 2021 |
Marine jetting operation at West Lamma Channel for LPS Pipeline |
|
|
8-16, 24-31 Aug 2021 |
Marine jetting operation at South of Shek Kwu Chau to Lamma Channel for LPS Pipeline |
|
|
1-8, 12-14, 17-23 Sep 2021 |
||
|
26-31 Aug 2021 |
Marine dredging operation at Pipeline Shore Approach at BPPS for BPPS Pipeline |
|
|
1, 8, 9 Sep 2021 |
||
|
18-30 Sep 2021 |
Marine jetting operation at West of Tai O to West of HKIA for BPPS Pipeline |
|
|
|
||
The operating speeds and marine travel routes of working vessels for construction of the Project within the reporting period were checked and reviewed. A total of 20 working vessels were used for the construction of the Jetty, LPS Pipeline and BPPS Pipeline under FEP-01/558/2018/A, FEP-02/558/2018/A and FEP-03/558/2018/B, respectively, during the reporting period. All these working vessels were operated at a speed lower than 10 knots when moving within the areas frequented by marine mammals, including the waters near Sha Chau and Lung Kwu Chau Marine Park, the waters at the west of Lantau Island and the waters between Soko Islands and Shek Kwu Chau, and followed the relevant marine travel requirements stipulated in the FEP. No non-compliance on the operating speeds and marine travel routes of working vessels was identified. Records of operating speeds and marine travel routes of working vessels for construction of the Project provided by the Contractor can be referred to the relevant Annexes of the associated Monthly EM&A Reports for the reporting period.
The compliance status on approval conditions given by the Director of Environmental Protection for the entry of working vessels (i.e. anchor handling tugs (AHTs)) within marine parks and the proposed SLMP in pursuant to Condition 3.1 of FEP-01/558/2018/A for anchoring activities for piling operation and jacket installation for construction of the Jetty, Condition 3.4 of FEP-02/558/2018/A and Condition 3.4 of FEP-03/558/2018/B for anchoring activities for pipelaying and/or post-trenching processes for construction of LPS and BPPS Pipelines, respectively, as appropriate within the reporting period was checked. A total of two AHTs with 11 entries to the proposed SLMP were recorded within the reporting period. No non-compliance on the approval conditions was identified. Records of entry events of working vessels within the proposed SLMP provided by the Contractor can be referred to relevant Annexes of the associated Monthly EM&A Reports for the reporting period.
A summary of the Environmental Mitigation Implementation Schedule (EMIS) is presented in Annex C. The necessary mitigation measures were implemented properly for the Project.
There were no Project-related Action and Limit Level exceedances for marine water quality monitoring in the reporting period.
There were no breaches of Action and Limit Levels for marine mammal monitoring in the reporting period.
Cumulative statistics on exceedance is provided in Annex E.
There were no environmental complaints, notification of summons and successful prosecutions recorded in the reporting period.
Statistics on environmental complaints, notification of summons and successful prosecutions are summarised in Annex E.
This Quarterly EM&A Summary Report presents the key findings of the EM&A works during the reporting period from 1 July to 30 September 2021 for the construction works for the Project in accordance with the Updated EM&A Manual and the requirements of the Further Environmental Permits (FEP-01/558/2018/A, FEP-02/558/2018/A & FEP-03/558/2018/B).
Environmental auditing works, including regular site inspections of construction works conducted by the ET, audit of implementation of Waste Management Plan, and review of the acceptability of operating speeds and marine travel routes of working vessels, including checking of compliance with the approval conditions given by EPD for allowing the entry of working vessels within marine parks and the proposed SLMP in pursuant to Condition 3.1 of FEP-01/558/2018/A, Condition 3.4 of FEP-02/558/2018/A and Condition 3.4 of FEP-03/558/2018/B, were conducted in the reporting period, as appropriate. No non-compliance of environmental statutory requirements was identified.
Marine water quality monitoring was conducted during the reporting period in accordance with the Updated EM&A Manual. No Project-related Action and Limit Level exceedances were recorded.
Pilot test on the efficiency of silt curtain system (cage-type silt curtain for jetting operation) was conducted during the reporting period in accordance with the approved Silt Curtain Deployment Plan. The results of the pilot test have demonstrated that the tested cage-type silt curtain for jetting operation is capable of achieving an efficiency greater than 85% as assumed in the approved EIA Report for the HKOLNG Terminal project. As such, the proposed cage-type silt curtain is effective for the jetting operation for the Project to minimize water quality impacts and no further measures/recommendations are required.
Marine mammal monitoring (vessel-based line transect survey and passive acoustic monitoring) was conducted during the reporting period in accordance with the Updated EM&A Manual. No breaches of Action and Limit Levels were recorded.
There were no environmental complaints, notification of summons and successful prosecutions recorded in the reporting period.
The recommended
environmental mitigation measures for the Project were effectively implemented
and the EM&A programme undertaken by the ET has effectively monitored the
construction activities as well as ensured proper implementation of mitigation
measures in the reporting period.
([1]) Application for variation of an environmental permit for FEP-01/558/2018 was undertaken and the latest FEP (FEP-01/558/2018/A) was issued on 6 November 2020.