TABLE OF
CONTENTS
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Page |
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1 |
1-2 |
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1.1 |
Basic Project Information |
1 |
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1.2 |
Project Organization |
1 |
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1.3 |
Construction Programme |
2 |
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1.4 |
Construction
Works Undertaken During the Reporting Period |
2 |
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2 |
3-6 |
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2.1 |
Summary of EM&A Requirements |
3-4 |
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2.2 |
Monitoring
Requirements |
4 |
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2.3 |
Action and Limit Levels |
4-6 |
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2.4 |
Event Action plans |
6 |
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2.5 |
Mitigation Measures |
6 |
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3 |
6-9 |
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3.1 |
Air Quality Monitoring Result |
6 |
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3.2 |
Noise Monitoring Results |
7 |
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3.3 |
Water Quality Monitoring Results |
7-8 |
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3.4 |
Dolphin Monitoring |
8 |
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3.5 |
Implementation Status of
Environmental Mitigation Measures |
8-9 |
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3.6 |
Advice on the
Solid and Liquid Waste Management Status |
9 |
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3.7 |
Environmental
Licenses and Permits |
9 |
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4 |
Summary of Exceedance,
Complaint, notification of summons and sucessful prosecution |
9-11 |
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4.1 |
Summary of Exceedance
of the Environmental Quality Performance Limit |
9-10 |
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4.2 |
Summary
of Complaints, Notification of Summons and Successful Prosecution |
10-11 |
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5 |
11-13 |
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5.1 |
Comments |
11-12 |
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5.2 |
Recommendations |
12 |
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5.3
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Conclusions |
12-13 |
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Figure 1 |
Air Quality and Noise Monitoring Stations for HKBCF |
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Figure 2 |
Water Quality Monitoring
Stations(construction phases) |
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Figure 3 |
Dolphin Monitoring Transect Line
and Layout
Map |
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TABLE |
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Table 1.1 |
Contact Information of Key Personnel |
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Table 2.1 |
Air Quality and Noise Monitoring Locations |
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Table 2.2 |
Water Quality Monitoring Stations (construction phases) |
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Table 2.3 |
Action and Limit Levels for 1-hour TSP |
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Table 2.4 |
Action and Limit Levels for 24-hour TSP |
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Table 2.5 |
Action and Limit Levels for Construction Noise |
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Table 2.6 |
Action and Limit Levels for Water Quality |
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Table 2.7 |
Action and Limit Levels for Chinese White Dolphin Monitoring –
Approach to Define Action |
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Level (AL) and Limit Level (LL) |
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Table 2.8 |
Derived Value of Action Level (AL) and Limit Level (LL) for
Chinese White Dolphin Monitoring |
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Table 3.1 |
Summary of marine sediment disposed to dumping site via Contract
No. HY/2013/03 |
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APPENDIX |
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Location of Works Areas |
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Project Organization for Environmental Works |
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Construction Programme |
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Event and Action Plan |
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Implementation
Schedule for Environmental Mitigation Measures (EMIS) |
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Site Audit Findings and Corrective Actions |
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Waste
Flow Table |
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Environmental
Licenses and Permits |
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Statistics
on Environmental Complaints, Notification of Summons and Successful
Prosecutions |
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Investigation Reports on Action Level
or Limit Level Non-compliance |
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Complaint Investigation Report |
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This Quarterly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/02
Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing
Facilities (HKBCF) – Infrastructure Works Stage I (Western Portion) (hereafter
referred to as “the Contract”) for the Highways Department of Hong Kong Special
Administrative Region (HKSAR). The Contract was awarded to China Harbour
Engineering Co., Ltd. (hereafter referred to as “the Contractor”) and ETS-Testconsult Limited was appointed as the Environmental Team
(ET) by the Contractor.
The Contract is part of Hong Kong – Zhuhai – Macao Bridge HKBCF which is a “Designated
Project”, under Schedule 2 of the Environmental Impact Assessment Ordinance
(EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No.
AEIAR-145/2009) was prepared for the Project. The current
Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11
April 2016. These documents are available through the EIA Ordinance Register.
Site preparation works of the Contract was started on 25 July 2014 and the
construction works of the Contract commenced on 24 November 2014.
ETS-Testconsult Limited
has been appointed by the Contractor to implement the Environmental Monitoring
& Audit (EM&A) programme for the Contract in accordance with the
Updated EM&A Manual for HKBCF (Version 1.0) and provide environmental team
services to the Contract.
This is the Twelfth Quarterly Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries findings of the EM&A works conducted during the reporting period from 01 September to 30 November 2017.
Environmental Monitoring and Audit Progress
The EM&A programme was
undertaken in accordance with the Updated EM&A Manual for HKBCF (Version
1.0). It should be noted that the air quality and noise monitoring
works for the Contract are covered by Contract No. HY/2013/01 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building” and Contract No. HY/2011/03 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between
Scenic Hill and HKBCF”. The ET of the Contract or
another ET of the HZMB project is required to conduct impact air quality
monitoring at AMS6 and AMS7, noise monitoring at NMS2 and NMS3B show
in Figure 1, water quality
monitoring show in Figure 2 and
dolphin monitoring
show in Figure 3 as part of EM&A programme
if these monitoring stations are no longer covered under Contract
No. HY/2013/01 and
HY/2011/03. However, this is subject to ENPO’s final decision on which ET
should carry out the monitoring works at these stations.
The dates of environmental site inspections
during the reporting period are listed below:
|
Environmental Site Inspection Date |
||
|
September 2017 |
October 2017 |
November 2017 |
|
07,
14, 21
and 28 |
06,
12, 19
and 26 |
02,
09, 16,
23 and 30 |
Breaches of Action and Limit
Levels
Summary
of Action and Limit Level exceedance of 1-hr TSP
level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A
report prepared by Contract No. HY/2011/03.
There was no Action and Limit Level exceedance of 1-hr TSP
level and 24-hr TSP level recorded at station AMS7 by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
There was an Action Level exceedance
of 24-hr TSP level recorded at station AMS3B by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
There was no Action and Limit Level exceedance for noise recorded
at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2013/01 during the
reporting period.
For water quality monitoring, there were 144 action level exceedances and 34 limit level
exceedances of dissolved oxygen, 5 action level exceedances
and 1 limit level exceedance
of turbidity, 28 action
level exceedances and 5 limit level exceedances of suspended solid during the reporting period. The
following table summarized the number of exceedance
on each sampling date:
|
Sampling Date |
No. of Exceedances |
|||||
|
DO |
Turbidity |
SS |
||||
|
Action |
Limit |
Action |
Limit |
Action |
Limit |
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|
1/9/2017 |
8 |
0 |
0 |
0 |
0 |
0 |
|
6/9/2017 |
4 |
4 |
1 |
0 |
3 |
0 |
|
8/9/2017 |
24 |
4 |
4 |
0 |
2 |
1 |
|
11/9/2017 |
30 |
3 |
0 |
0 |
0 |
0 |
|
13/9/2017 |
13 |
3 |
0 |
0 |
0 |
0 |
|
15/9/2017 |
10 |
2 |
0 |
1 |
0 |
0 |
|
18/9/2017 |
8 |
2 |
0 |
0 |
1 |
0 |
|
20/9/2017 |
3 |
2 |
0 |
0 |
1 |
0 |
|
22/9/2017 |
17 |
4 |
0 |
0 |
0 |
0 |
|
25/9/2017 |
1 |
1 |
0 |
0 |
1 |
0 |
|
27/9/2017 |
6 |
1 |
0 |
0 |
0 |
0 |
|
29/9/2017 |
13 |
0 |
0 |
0 |
0 |
0 |
|
2/10/2017 |
3 |
1 |
0 |
0 |
0 |
0 |
|
4/10/2017 |
3 |
4 |
0 |
0 |
0 |
0 |
|
6/10/2017 |
1 |
2 |
0 |
0 |
0 |
0 |
|
9/10/2017 |
0 |
1 |
0 |
0 |
0 |
0 |
|
18/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/10/2017 |
0 |
0 |
0 |
0 |
3 |
0 |
|
23/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
03/11/2017 |
0 |
0 |
0 |
0 |
3 |
1 |
|
06/11/2017 |
0 |
0 |
0 |
0 |
5 |
0 |
|
08/11/2017 |
0 |
0 |
0 |
0 |
2 |
2 |
|
13/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
15/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
22/11/2017 |
0 |
0 |
0 |
0 |
1 |
1 |
|
24/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
Total: |
144 |
34 |
5 |
1 |
28 |
5 |
After investigation, there
was concluded that the exceedances were not relevant
to this Contract since there was only one marine based
activity which is demolition
of temporary loading and unloading point
of this Contract worked
at HKBCF reclamation site near the sea area or area near the monitoring stations. The demolition of
temporary loading and unloading point was started from 18 July 2017. The major
marine based activity was the removal of marine piling of temporary loading and
unloading point. All marine based
activities were carried out within the silt curtain and no
defect of silt curtain was recorded by Contract No. HY/2010/02 from 18 July 2017 to 31 August 2017. Besides, there
was also no DO, turbidity and SS exceedance recorded during 18 July 2017 to 31
August 2017. Therefore, the exceedance was not caused by demolition of temporary loading and
unloading point. The Investigation Reports
No. 019, 020, 021 and 022 (including the causes of exceedance, action taken and recommendation for mitigation)
for Action or Limit Level Non-compliance were provided in Appendix J. As confirmed by SRE, removal of temporary loading and unloading
point by Contract No. HY/2013/02,
which involved marine work, was completed on 10 September 2017 and
the area was handed back to Reclamation Contractor on 11 September 2017
for subsequent seawall construction. Hence, specific investigation shall be
referred to other ET’s report(s) under the HZMB Projects in which the
respective contract(s) with remaining marine works on-going for the exceedances recorded in water quality monitoring during
this reporting period. There was
no Action and Limit Level exceedance recorded on
other monitoring date at the monitoring stations showed at Table 4.1 by
the Environmental Team of Contract No. HY/2013/01 during the reporting period.
Impact dolphin monitoring results at all transects were reported in the EM&A Report prepared for Contract
No. HY/2013/01.
Implementation of Environmental Measures
Site inspections
were carried out on a weekly basis to monitor the implementation of proper
environmental pollution control and mitigation measures for the Project.
Potential environmental impacts due to the construction activities were
monitored and reviewed.
Complaint Log
There were two complaints received during the
reporting period.
1.
One complaint received by Environmental Protection Department on
27 October 2017 and referred to the ENPO. Then the ENPO forwarded the complaint
by email to the R.E. (AECOM), the Contractor (China Harbour) and the ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02 at 19:57 on 27 October 2017. The complaint detail
was "珠澳大橋人工島地盤投訴黃泥水落海，情況持續了一個星期，詳細發生地點是人工島的C3位置，他要求跟進及回覆。"
After received the
details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 had performed a related follow-up
inspection on 02 November 2017 to investigate this event. The inspection was
concentrated to check if appropriate water pollution mitigation measures were
launched by the Contractor of Contract No. HY/2013/02.
According to the investigation, de-silting pits with geotextile
were provided and wastewater was collected by the wetsep
for proper treatment prior to disposal. Besides, effluent
water sample was sampled for
testing the total suspended solids. According to the latest test report with
sample sampled on 25 September 2017, the parameter
complied with the discharge license requirement. Hence, the complaint was found non-related to
Contract No. HY/2013/02. The complaint investigation
report (Log No. 015) was provided in Appendix K.
2.
One complaint received by Environmental Protection Department on
23 November 2017 and referred to the ENPO. Then the ENPO forwarded the
complaint by email to the R.E. (AECOM), the Contractor (China Harbour) and the
ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02
17:58 on 23 November 2017. The complaint detail was "港珠澳大橋人工島地盤，由於不是每處都灑水，引致大量塵埃，近收費亭最嚴重"
After received the
details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 had performed a related follow-up
inspection on 24 November 2017 to investigate this event. The inspection was
concentrated to check if regular watering launched inside the construction site
by the Contractor of Contract No. HY/2013/02.
After checked with
the Contractor of Contract No. HY/2013/02 during 15:00 to 16:00 on 24 November 2017, the worksite was
wetted with water (see attached photo
and location plan of watering photo) near收費亭 and spraying with
water by watering cars were observed on the worksite during the follow-up inspection. Besides,
收費亭was not managed by Contract No. HY/2013/02. Hence, the complaint was found non-related to Contract
No. HY/2013/02. The complaint investigation report (Log No. 016) was provided in Appendix K.
Notifications of Summons and Successful
Prosecutions
There were no
notification of summon or prosecution received during the reporting period.
Reporting Change
From
01 September 2017, the implementation of environmental monitoring for Contract
No. HY/2010/02 (covering air quality, noise, water quality and marine
ecology) was suspended and the same implementation were
conducted by the ET for Contract No. HY/2013/01 of which the
noise monitoring station (NMS3B) and the meteorological station had been
slightly re-located to AECOM PRE's Office.
Also, since the disposal of excavated
marine sediments has been completed with the last batch disposal on 30 August
2017 as confirmed by
RSS, no excavated marine
sediment was still remained and stored on site awaiting disposal during
this reporting period under Contract No. HY/2013/02.
1.1
Basic Project Information
1.1.1
This Quarterly Environmental
Monitoring and Audit (EM&A) Report is
prepared for Contract HY/2013/02 Hong Kong–Zhuhai-Macao
Bridge Hong Kong Boundary Crossing Facilities (HKBCF) – Infrastructure Works
Stage I (Western Portion) (hereafter referred to as “the Contract”) for the
Highways Department of Hong Kong Special Administrative Region (HKSAR). The
Contract was awarded to China Harbour Engineering Co., Ltd. (hereafter referred
to as “the Contractor”) and ETS-Testconsult Limited
was appointed as the Environmental Team (ET) by the Contractor.
1.1.2
The Contract is part of
Hong Kong – Zhuhai – Macao Bridge HKBCF which is a
“Designated Project”, under Schedule 2 of the Environmental Impact Assessment
Ordinance (EIAO) (Cap 499) and an Environmental Impact Assessment (EIA) Report
(Register No. AEIAR-145/2009) was prepared for the Project. The current
Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016.
These documents are available through the EIA Ordinance Register. Site
preparation works of the Contract started on 25 July 2014 and the construction
works of the Contract commenced on 24 November 2014. The works area of the
Contract is shown in Appendix A.
1.1.3
This is the Twelfth Quarterly Environmental Monitoring and Audit (EM&A) Report for the
Contract which summaries the audit findings of the EM&A programme during
the reporting period from 01 September to 30 November 2017.
1.2
Project Organization
1.2.1
The project
organisation structure and lines of communication with respect to the
on-site environmental management
structure is shown in Appendix B. The key personnel contact
names and numbers are summarized in Table
1.1.
Table 1.1 Contact
Information of Key Personnel
|
Party |
Position |
Name of Key Staff |
Tel. No. |
Fax No. |
|
Engineer or Engineer’s Representative
(AECOM Asia Co. Ltd.) |
Resident Engineer |
Mr. Winston Wong |
6330 8293 |
3152 5116 |
|
Environmental Project Office / Independent Environmental Checker
(Ramboll Environ Hong Kong Limited) |
Environmental Project Office Leader |
Mr. Y. H. Hui |
3465 2888 |
3465 2899 |
|
Independent Environmental Checker |
Mr. Raymond Dai |
3465 2888 |
3465 2899 |
|
|
Environmental Site Supervisor |
Mr. Ray Yan |
5181 8165 |
3465 2899 |
|
|
Contractor (China Harbour Engineering
Co., Ltd.) |
Environmental Officer |
Mr. Richard Ng |
5977 0593 |
3915 0300 |
|
Environmental Officer |
Mr. Paper Chan |
6486 8967 |
3915 0300 |
|
|
Environmental Supervisor |
Mr. Endy Tse |
5512 2662 |
3915 0300 |
|
|
Environmental
Team (ETS-Testconsult Ltd.) |
Environmental
Team Leader |
Mr. C. L. Lau |
2946
7791 |
2695
3944 |
|
|
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1.3
Construction Programme
1.3.1
A copy of the Contractor’s construction
programme is provided in Appendix C.
1.4
Construction Works Undertaken During the Reporting Period
1.4.1
A
summary of the construction activities undertaken during this reporting period is
shown below:
l
Road and Bituminous works;
l
Storm, sewer drainage and water main construction;
l
Retaining wall, slop and earth works;
l
Construction of signs gantries, cable trench and ducting;
l
Demolition of temporary loading and unloading point (Marine-based activity);
l
Construction of bridge deck in Portion D, A, E, C & F
l
Construction of parapet & barrier
2.1
Summary of EM&A Requirements
2.1.1 The monthly
EM&A programme was undertaken in accordance with the Updated EM&A
Manual for HKBCF (Version 1.0). It should be noted that the air quality and
noise monitoring works for the Contract are covered by Contract No. HY/2013/01
“Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building” and Contract No. HY/2011/03 “Hong
Kong-Zhuhai-Macao Bridge Hong Kong Link Road –
Section between Scenic Hill and HKBCF”. The ET of the
Contract or another ET of the HZMB project is required to conduct impact air
quality monitoring at AMS6 and AMS7, noise monitoring at NMS2
and NMS3B show at Figure 1 and Table 2.1, water quality
monitoring stations show at Figure 2
and Table 2.2 and dolphin monitoring show at Figure 3 as part of
EM&A programme if these monitoring stations are no longer covered under
Contract No. HY/2013/01 and
HY/2011/03. However, this is subject to ENPO’s final decision on which ET
should carry out the monitoring works at these stations.
The ET of the Contract or another ET of the HZMB
project is required to conduct dolphin monitoring at 24
transects
as part of EM&A programme if these transects are no longer covered under
Contract No. HY/2013/01. The dolphin monitoring should adopt line-transect
vessel survey method. The survey follows pre-set and fixed transect
lines in the two areas defined by AFCD as: Northeast Lantau
survey area; and Northwest Lantau survey area. Figure 3 shows
the
co-ordinates for the transect lines and layout map.
2.1.2 A summary of air and
noise monitoring locations are presented in Table 2.1. The location of
air quality and noise monitoring stations are shown as in Figure 1.
Table 2.1 Air
Quality and Noise Monitoring Locations
|
Environmental Monitoring |
Identification No. |
Location Description |
|
|
Air Quality |
AMS6(1) |
Dragonair / CNAC (Group)
Building |
|
|
AMS7(1)(2) |
Hong Kong SkyCity Marriott Hotel |
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|
Noise |
NMS2(3) |
Seaview Crescent |
|
|
NMS3B(3)(4) |
Site Boundary of Site Office Area at
Works Area WA2 |
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Remarks: |
|
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(1) The ET of this Contract should
conduct impact air quality monitoring at the AMS listed in the table as part
of EM&A programme according to latest notification from ENPO when the
monitoring station(s) is/are no longer covered by another ET of the HZMB
project. |
|
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(2) The
air quality monitoring location AMS |
|
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|
(3) ET of this Contract should
conduct impact noise monitoring at the NMS listed in the table as part of
EM&A programme according to latest notification from ENPO when the
monitoring station(s) is/are no longer covered by another ET of the HZMB
project. |
|
||
|
(4) The Action and Limit Levels
for schools will be applied for this alternative monitoring location. |
|
||
2.1.3 The water monitoring works for the
Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building. The ET of the Contract or another ET
of the HZMB project is required to conduct water quality monitoring at twenty
one stations (9 Impact Stations, 7
Sensitive Receiver Stations and 5 Control/Far Field Stations). Table 2.2 and Figure 2 shows the locations of water quality monitoring stations.
Table 2.2 Water Quality Monitoring Stations
(construction phases)
|
Station |
Description |
East |
North |
|
IS5 |
Impact
Station (Close to HKBCF construction site) |
811579 |
817106 |
|
IS(Mf)6 |
Impact
Station (Close to HKBCF construction site) |
812101 |
817873 |
|
IS7 |
Impact
Station (Close to HKBCF construction site) |
812244 |
818777 |
|
IS8 |
Impact
Station (Close to HKBCF construction site) |
814251 |
818412 |
|
IS(Mf)9 |
Impact
Station (Close to HKBCF construction site) |
813273 |
818850 |
|
IS10(N) |
Impact Station (Close to HKBCF
construction site) |
812942 |
820881 |
|
IS(Mf)11
|
Impact
Station (Close to HKBCF construction site) |
813562 |
820716 |
|
IS(Mf)16 |
Impact
Station (Close to HKBCF construction site) |
814328 |
819497 |
|
IS17 |
Impact
Station (Close to HKBCF construction site) |
814539 |
820391 |
|
SR3 |
Sensitive
receivers (San Tau SSSI) |
810525 |
816456 |
|
SR4(N) |
Sensitive
receivers (Tai Ho) |
814705 |
817859 |
|
SR5(N) |
Sensitive receiver (Artificial
Reef in NE Airport) |
812569 |
821475 |
|
SR6 |
Sensitive
receivers (Sha Chau and
Lung Kwu Chau Marine
Park) |
805837 |
821818 |
|
SR7 |
Sensitive
receivers (Tai Mo Do) |
814293 |
821431 |
|
SR10A
[1] |
Sensitive
receivers (Ma Wan FCZ)1 |
823741 |
823495 |
|
SR10B(N)[1] |
Sensitive
receivers (Ma Wan FCZ)2 |
823683 |
823187 |
|
CS(Mf)3(N) |
Control Station |
808814 |
822355 |
|
CS(Mf)5 |
Control
Station |
817990 |
821129 |
|
CS4 |
Control
Station |
810025 |
824004 |
|
CS6 |
Control
Station |
817028 |
823992 |
|
CSA
[2] |
Control
Station |
818103 |
823064 |
|
Note: |
|||
|
(1) Additional monitoring station for Ma Wan
FCZ. |
|||
|
(2)
Additional
control monitoring station for Ma Wan FCZ |
|||
|
Remarks: |
|||
|
The ET of this Contract should conduct impact water quality
monitoring at the WQMS listed in the table as part of EM&A programme
according to latest notification from ENPO when the monitoring station(s)
is/are no longer covered by another ET of the HZMB project. The ET of the Contract
shall communicate and share the monitoring data to the ET(s) of other works contracts
if the water quality monitoring station(s) is/are as part of EM&A programme. |
|||
2.1.4
The dolphin monitoring works for the Contract are covered by Contract
No. HY/2013/01 Hong
Kong-Zhuhai-Macao Bridge HKBCF –
Passenger
Clearance Building.
Figure 3
shown the
layout map for the vessel-based transect lines.
2.2
Monitoring Requirements
2.2.1
The monitoring requirements, monitoring
equipment, monitoring parameters, frequency and duration, monitoring
methodology, monitoring schedule, meteorological information are detailed in
the monthly EM&A Reports prepared for Contract Nos. HY/2013/01 and HY/2011/03.
2.3
Action and
Limit Levels
2.3.1
The Action
and Limit Levels for 1-hr TSP and 24-hr TSP are provided in Table 2.3 and Table
2.4 respectively.
Table
2.3 Action
and Limit Levels for 1-hour TSP
|
Monitoring Station |
Action Level,mg/m3 |
Limit Level,mg/m3 |
|
AMS6 – Dragnair
/ SNAC (Group) Building (HKIA) |
360 |
500 |
|
AMS7 –
Hong Kong SkyCity
Marriott Hotel |
370 |
500 |
Table 2.4 Action and Limit Levels for 24-hour TSP
|
Monitoring Station |
Action Level, mg/m3 |
Limit Level,mg/m3 |
|
AMS6 – Dragnair / SNAC (Group) Building
(HKIA) |
173 |
260 |
|
AMS7 – Hong
Kong SkyCity Marriott Hotel |
183 |
260 |
2.3.2
If exceedance(s) at these station(s) is/are recorded by the ET
of the Contract or referred by the other ET under the HZMB project to the
Contract, the ET of the Contract will carry out an investigation and findings
will be reported in the quarterly EM&A Report.
2.3.3
The Action and Limit Levels for construction noise are provided in Table 2.5
Table
2.5 Action and Limit Levels for Construction Noise
|
Parameter |
Action Level |
Limit Level |
||
|
07:00 – 19:00 hours on normal weekdays |
When
one documented complaint is received |
75
dB(A)* |
||
|
Notes: |
|
|||
|
If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed. * Reduce to 70
dB(A) for schools and 65 dB(A) during school examination period. |
|
|||
2.3.4
If exceedance(s) at these station(s) is/are recorded by the ET
of the Contract or referred by the other ET under the HZMB project to the
Contract, the ET of the Contract will carry out an investigation and findings
will be reported in the quarterly EM&A Report.
2.3.5
The Action and Limit Levels for Water Quality are provided in Table 2.6
Table 2.6 Action
and Limit Levels for Water Quality
|
Parameters |
Action |
Limit |
|
|
DO in mg/L (Surface, Middle & Bottom) |
Surface and Middle 5.0 Bottom 4.7 |
Surface and Middle 4.2 (except 5 mg/L for FCZ) Bottom 3.6 |
|
|
SS in mg/L (depth-averaged) at all monitoring
stations and control stations |
23.5 and 120% of upstream control station's SS at
the same tide of the same day* |
34.4 and 130% of upstream control station's SS at
the same tide of the same day and 10mg/L for WSD Seawater intakes* |
|
|
Turbidity in NTU (depth-averaged) |
27.5 and 120% of upstream control station's turbidity
at the same tide of the same day* |
47.0 and 130% of upstream control station's
turbidity at the same tide of the same day* |
|
|
*Remarks: |
Reference is made to EPD
approval of adjustment of water quality assessment criteria |
||
|
|
issued and became effective on 18 February 2013. |
||
|
Notes: |
1.
"depth-averaged" is calculated by taking the arithmetic
means of reading of all three depths. |
||
|
|
2.
For DO, non-compliance of the water quality limits occurs when
monitoring result is lower than the limits. |
||
|
|
3.
For turbidity, SS, non-compliance of the water quality limits occurs
when monitoring result is higher than the limits. |
||
|
|
4.
All the figures given in the table are used for reference only and the
EPD may amend the figures whenever it is considered as necessary. |
||
|
|
5.
The 1%-ile of baseline data for dissolved
oxygen (surface and middle) and dissolved oxygen (bottom) are 4.2mg/L and
3.6mg/L respectively. |
||
2.3.6 If exceedance(s) at these
station(s) is/are recorded by the ET of the Contract or referred by the other
ET under the HZMB project to the Contract, the ET of the Contract will carry
out an investigation and findings will be reported in the quarterly EM&A
Report.
2.3.7 The Action and Limit Levels for Chinese White Dolphin
Monitoring are provided in Table 2.7 & Table 2.8
Table 2.7 Action
and Limit Levels for Chinese White Dolphin Monitoring
– Approach to Define Action Level (AL) and Limit Level (LL)
|
|
North Lantau
Social Cluster |
|
|
NEL |
NWL |
|
|
Action Level |
(STG < 70% of baseline) & (ANI < 70% of baseline) |
(STG < 70% of baseline) & (ANI < 70% of baseline) |
|
Limit Level |
[(STG < 40% of baseline) & (ANI < 40%
of baseline)] AND [ (STG < 40% of baseline) & (ANI <
40% of baseline)] |
|
For North Lantau Social
Cluster, action level will be trigger if either NEL or NWL fall below the criteria;
limit level will be triggered if both NEL and NWL fall below the criteria.
Table 2.8 Derived
Value of Action Level (AL) and Limit Level (LL) for Chinese White
Dolphin Monitoring
|
|
North Lantau
Social Cluster |
|
|
NEL |
NWL |
|
|
Action Level |
(STG < 4.2) & (ANI < 15.5 ) |
(STG < 6.9) & (ANI < 31.3) |
|
Limit Level |
[(STG < 2.4) & (ANI < 8.9)] AND [(STG
< 3.9) & (ANI < 17.9)] |
|
The ET
of this Contract should conduct impact dolphin monitoring as part of EM&A
programme according to latest notification from ENPO when the monitoring transect(s) is/are no longer covered by
another ET of the HZMB project.
2.3.8
If exceedance(s) at these transect(s) is/are recorded by the
ET of the Contract or referred by the other ET under the HZMB project to the
Contract, the ET of the Contract will carry out an investigation and findings
will be reported in the quarterly EM&A Report.
2.4
Event Action
Plans
2.4.1
The event and
action plan is provided in Appendix D.
2.5
Mitigation
Measures
2.5.1
Environmental
mitigation measures for the Contract were recommended in the Approved EIA Report.
Appendix E lists the recommended mitigation measures and the implementation
status.
3
Environmental Monitoring and Audit
3.1
Air Quality Monitoring
Results
3.1.1 The monitoring results for AMS6 and AMS7 were
reported in the monthly EM&A Reports (September 2017, October 2017 and November
2017) prepared for Contract Nos. HY/2011/03 and HY/2013/01 respectively.
3.1.2 Summary of Action and Limit Level exceedance
of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly
EM&A report prepared by Contract No. HY/2011/03.
3.1.3 There was no Action and Limit Level exceedance of 1-hr TSP
level and 24-hr TSP level recorded at station AMS7 by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
3.1.4
There was an
Action Level exceedance of 24-hr TSP level recorded
at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level
Non-compliance were provided in Appendix J.
3.2
Noise
Monitoring Results
3.2.1 The monitoring results for NMS2 and NMS3B were
reported in the monthly EM&A Reports (September 2017, October 2017 and November
2017) prepared by Contract No. HY/2013/01.
3.2.2 There was no exceedance of noise recorded
at station NMS2 and station NMS3B by the Environmental Team of Contract No.
HY/2013/01 during the reporting period.
3.3
Water
Quality Monitoring Result
3.3.1 The monitoring results
for the monitoring stations
showed in Table 2.2 were
reported in the monthly EM&A Reports (September 2017, October
2017 and November 2017) prepared for Contract No. HY/2013/01. There were 144 action level exceedances and 34 limit level exceedances of dissolved oxygen, 5 action level exceedances
and 1 limit level exceedance
of turbidity, 28 action
level exceedances and 5 limit level exceedances of suspended solid during the reporting period. The
following table summarized the number of exceedance
on each sampling date:
|
Sampling Date |
No. of Exceedances |
||||||||
|
DO |
Turbidity |
SS |
|||||||
|
Action |
Limit |
Action |
Limit |
Action |
Limit |
||||
|
1/9/2017 |
8 |
0 |
0 |
0 |
0 |
0 |
|||
|
6/9/2017 |
4 |
4 |
1 |
0 |
3 |
0 |
|||
|
8/9/2017 |
24 |
4 |
4 |
0 |
2 |
1 |
|||
|
11/9/2017 |
30 |
3 |
0 |
0 |
0 |
0 |
|||
|
13/9/2017 |
13 |
3 |
0 |
0 |
0 |
0 |
|||
|
15/9/2017 |
10 |
2 |
0 |
1 |
0 |
0 |
|||
|
18/9/2017 |
8 |
2 |
0 |
0 |
1 |
0 |
|||
|
20/9/2017 |
3 |
2 |
0 |
0 |
1 |
0 |
|||
|
22/9/2017 |
17 |
4 |
0 |
0 |
0 |
0 |
|||
|
25/9/2017 |
1 |
1 |
0 |
0 |
1 |
0 |
|||
|
27/9/2017 |
6 |
1 |
0 |
0 |
0 |
0 |
|||
|
29/9/2017 |
13 |
0 |
0 |
0 |
0 |
0 |
|||
|
2/10/2017 |
3 |
1 |
0 |
0 |
0 |
0 |
|||
|
4/10/2017 |
3 |
4 |
0 |
0 |
0 |
0 |
|||
|
6/10/2017 |
1 |
2 |
0 |
0 |
0 |
0 |
|||
|
9/10/2017 |
0 |
1 |
0 |
0 |
0 |
0 |
|||
|
18/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
20/10/2017 |
0 |
0 |
0 |
0 |
3 |
0 |
|||
|
23/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
03/11/2017 |
0 |
0 |
0 |
0 |
3 |
1 |
|||
|
06/11/2017 |
0 |
0 |
0 |
0 |
5 |
0 |
|||
|
08/11/2017 |
0 |
0 |
0 |
0 |
2 |
2 |
|||
|
13/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
15/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
20/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
22/11/2017 |
0 |
0 |
0 |
0 |
1 |
1 |
|||
|
24/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|||
|
Total: |
144 |
34 |
5 |
1 |
28 |
5 |
|||
3.3.2.
After
investigation, there was concluded that the exceedances
were not relevant to this Contract since there was only one marine
based activity which is demolition of temporary loading and unloading point of this Contract worked at HKBCF reclamation site near the sea area or
area near the monitoring stations. The demolition of
temporary loading and unloading point was started from 18 July 2017. The major
marine based activity was the removal of marine piling of temporary loading and
unloading point. All marine based
activities were carried out within the silt curtain and no
defect of silt curtain was recorded by Contract No. HY/2010/02 from 18 July 2017 to 31 August 2017. Besides, there
was also no DO, turbidity and SS exceedance recorded during 18 July 2017 to 31
August 2017. Therefore, the exceedance was not caused by demolition of temporary loading and
unloading point. The Investigation Reports
No. 019, 020, 021 and 022 (including the causes of exceedance, action taken and recommendation for mitigation)
for Action or Limit Level Non-compliance were provided in Appendix J. As confirmed by SRE, removal of temporary loading and unloading point
by Contract No. HY/2013/02, which involved marine work, was completed on 10
September 2017 and the area was handed
back to Reclamation Contractor on 11 September 2017 for subsequent seawall
construction. Hence, specific investigation shall be
referred to other ET’s report(s) under the HZMB Projects in which the
respective contract(s) with remaining marine works on-going for the exceedances recorded in water quality monitoring during
this reporting period. There
was no Action and Limit Level exceedance recorded on
other monitoring date at the monitoring stations showed at Table 4.1 by
the Environmental Team of Contract No. HY/2013/01 during the reporting
period.
3.3.3 Although the exceedances
were not relevant to this Contract, the Contractor was reminded to provide appropriate water pollution
mitigation measures, such as ensure all construction activities that would
deteriorate the water quality was collected by sedimentation tanks or package
treatment systems for proper treatment prior to disposal.
3.4
Dolphin monitoring Result
3.4.1
Impact dolphin
monitoring results at all transects were reported in the EM&A Report prepared
for Contract No. HY/2013/01. One limit level exceedance
was recorded in the monitoring period (September 2017 – November 2017).
3.4.2
During this
reporting period, only one marine
based activity which is demolition of temporary loading and unloading
point worked by Contract No. HY/2013/02. The demolition of temporary loading and unloading point was completed on
10 September 2017 and the area was handed back to Reclamation Contractor on
11 September 2017 for subsequent seawall construction. Besides, the marine delivery of precast segments was completed in July 2017 by Contract No. HY/2013/02, no marine traffic records and geographical plots of the vessels tracks were
recorded during the reporting period.
3.4.3
The exceedance is
still under investigation by Contract No. HY/2013/01. The Investigation Report (including the
causes of exceedance, action taken and recommendation
for mitigation) for Action or Limit Level Non-compliance will be prepared by
the ET of Contract No. HY/2013/01 and detailed in the quarterly EM&A Report prepared for Contract No. HY/2013/01.
3.4.4
Although the exceedances
were not relevant to this Contract, the Contractor was reminded to provide
appropriate water pollution mitigation measures, such as ensure all marine based activities were carried out
within the silt curtain.
3.5
Implementation
of Environmental Measures
3.5.1
In response to the site
audit findings, the Contractor carried out corrective actions. Details of site
audit findings and the corrective actions during the reporting period are
presented in Appendix F.
3.5.2
The Contractor waters 8
times per day on all exposed soil within the project site and associated works
areas when construction activities are being undertaken.
3.5.3
The
Contractor was reminded to resolve the potential conflicts
between the proposed landscape measures and any other works of the project. The landscape works with mitigation code G1, G2
and G4 were mainly conducted in Portion D under construction stage. The other
mitigation measures with
mitigation code G5, G6, G7 & G9 were not yet started. The implementation
status of Landscape and Visual Mitigation Measures is presented in Appendix E.
3.5.4
The Contractor was reminded
to provide well-maintained plant operated on-site and plant served
regularly;
3.5.5
The Contractor was
reminded to switch off vehicles and equipment while not in use;
3.5.6
The Contractor was
reminded to schedule the construction works to minimize noise
nuisance etc.
3.5.7
The
Contractor was reminded to ensure all construction activities that generate
wastewater with high concentrations of suspended solid (SS) should be collected
to sedimentation tanks or package treatment systems for proper treatment prior
to disposal.
3.5.7 The implementation status of Regular Marine Travel Route Plan (RMTRP) was
checked by ET. Training material
of Regular Marine Travel Route Plan was prepared and given to relevant staff.
Those records were kept properly. Since the marine delivery of precast segments
was completed in July 2017 and the removal of
temporary loading and unloading point by Contract No. HY/2013/02, which
involved marine work, was completed on 10 September 2017 and the area was handed back to Reclamation Contractor on
11 September 2017 for subsequent seawall construction, no marine traffic records and geographical
plots of the vessels tracks to demonstrate the conformance of the vessel to the
proposed route in September 2017, October 2017 and November 2017 would be
provided to ER, ETL, IEC/ENPO for checking within the reporting period.
3.5.8
The tool box training of
dolphin was carried out in Dec 2015. According to the action plan and
communication flow chart of dolphin instruction, if any dolphin intruded BCF
perimeter silt curtain, ETL should be informed. There was no notification
received on any dolphin intrusion the site area of Contract No. HY/2013/02 during
the reporting period.
3.5.9
A summary of the Implementation
Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix
E. Most of the necessary mitigation measures were implemented properly.
3.6
Advice on the Solid and Liquid Waste Management
Status
3.6.1
The Contractor
registered as a chemical waste producer for the Contract. Sufficient numbers of
receptacles were available for general refuse collection and sorting.
3.6.2
There was no excavated marine sediment generated in this
reporting period. Since the disposal of excavated marine sediments has been completed with the last batch
disposal on 30 August 2017 as confirmed by RSS, no excavated marine sediment was still remained and stored on site awaiting disposal during this
reporting period under Contract No. HY/2013/02.
3.6.3
The summary of waste flow
table is detailed in Appendix G.
3.7
Environmental Licenses and Permits
3.7.1 The valid environmental licenses and permits during
the reporting period are summarized in Appendix H.
4
Summary of exceedance, complaint, notification of
summons and successful prosecution
4.1
Summary of Exceedance of the Environmental Quality Performance Limit
4.1.1 Summary of Action and Limit Level exceedance
of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly
EM&A report prepared by Contract No. HY/2011/03.
4.1.2 There was no Action and Limit Level exceedance of 1-hr TSP
level and 24-hr TSP level recorded at station AMS7 by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
4.1.3
There was an
Action Level exceedance of 24-hr TSP level recorded
at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance,
action taken and recommendation for mitigation) for Action or Limit Level
Non-compliance were provided in Appendix J.
4.1.4 There was no Action and Limit Level exceedance of noise recorded
at station NMS2 and station NMS3B by the Environmental Team of Contract No.
HY/2013/01 during the reporting period.
4.1.5 For water quality monitoring, there were 144 action level exceedances and 34 limit level
exceedances of dissolved oxygen, 5 action level exceedances
and 1 limit level exceedance
of turbidity, 28 action
level exceedances and 5 limit level exceedances of suspended solid during the reporting period. The
following table summarized the number of exceedance
on each sampling date:
|
Sampling Date |
No. of Exceedances |
|||||
|
DO |
Turbidity |
SS |
||||
|
Action |
Limit |
Action |
Limit |
Action |
Limit |
|
|
1/9/2017 |
8 |
0 |
0 |
0 |
0 |
0 |
|
6/9/2017 |
4 |
4 |
1 |
0 |
3 |
0 |
|
8/9/2017 |
24 |
4 |
4 |
0 |
2 |
1 |
|
11/9/2017 |
30 |
3 |
0 |
0 |
0 |
0 |
|
13/9/2017 |
13 |
3 |
0 |
0 |
0 |
0 |
|
15/9/2017 |
10 |
2 |
0 |
1 |
0 |
0 |
|
18/9/2017 |
8 |
2 |
0 |
0 |
1 |
0 |
|
20/9/2017 |
3 |
2 |
0 |
0 |
1 |
0 |
|
22/9/2017 |
17 |
4 |
0 |
0 |
0 |
0 |
|
25/9/2017 |
1 |
1 |
0 |
0 |
1 |
0 |
|
27/9/2017 |
6 |
1 |
0 |
0 |
0 |
0 |
|
29/9/2017 |
13 |
0 |
0 |
0 |
0 |
0 |
|
2/10/2017 |
3 |
1 |
0 |
0 |
0 |
0 |
|
4/10/2017 |
3 |
4 |
0 |
0 |
0 |
0 |
|
6/10/2017 |
1 |
2 |
0 |
0 |
0 |
0 |
|
9/10/2017 |
0 |
1 |
0 |
0 |
0 |
0 |
|
18/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/10/2017 |
0 |
0 |
0 |
0 |
3 |
0 |
|
23/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
03/11/2017 |
0 |
0 |
0 |
0 |
3 |
1 |
|
06/11/2017 |
0 |
0 |
0 |
0 |
5 |
0 |
|
08/11/2017 |
0 |
0 |
0 |
0 |
2 |
2 |
|
13/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
15/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
22/11/2017 |
0 |
0 |
0 |
0 |
1 |
1 |
|
24/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
Total: |
144 |
34 |
5 |
1 |
28 |
5 |
4.1.6 Impact dolphin monitoring results at all transects
were reported in the EM&A Report prepared for Contract No. HY/2013/01.
4.2
Summary of Complaints,
Notification of Summons and Successful Prosecution
4.2.1
There were two
complaints received during the reporting period.
1.
One complaint received by Environmental Protection Department on
27 October 2017 and referred to the ENPO. Then the ENPO forwarded the complaint
by email to the R.E. (AECOM), the Contractor (China Harbour) and the ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02 at 19:57 on 27 October 2017. The complaint detail
was "珠澳大橋人工島地盤投訴黃泥水落海，情況持續了一個星期，詳細發生地點是人工島的C3位置，他要求跟進及回覆。"
4.2.2
After received the
details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 had
performed a related follow-up inspection on 02 November 2017 to investigate
this event. The inspection was concentrated to check if appropriate water
pollution mitigation measures were launched by the Contractor of Contract No.
HY/2013/02.
4.2.3
According to the
investigation, de-silting pits with geotextile were provided and wastewater was collected by
the wetsep for proper
treatment prior to disposal. Besides, effluent water sample was
sampled for testing the total suspended solids. According to the latest test report with
sample sampled on 25 September 2017, the parameter
complied with the discharge license requirement. Hence, the complaint was found non-related to
Contract No. HY/2013/02. The complaint investigation report (Log No. 015) was provided in Appendix K.
2.
One complaint received by Environmental Protection Department on
23 November 2017 and referred to the ENPO. Then the ENPO forwarded the
complaint by email to the R.E. (AECOM), the Contractor (China Harbour) and the
ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02
17:58 on 23 November 2017. The complaint detail was "港珠澳大橋人工島地盤，由於不是每處都灑水，引致大量塵埃，近收費亭最嚴重"
4.2.4
After received the
details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 had
performed a related follow-up inspection on 24 November 2017 to investigate
this event. The inspection was concentrated to check if regular watering
launched inside the construction site by the Contractor of Contract No.
HY/2013/02.
4.2.5
After checked with
the Contractor of Contract No. HY/2013/02 during 15:00 to 16:00 on 24 November
2017, the worksite was wetted with water (see attached photo and location plan of watering photo) near收費亭 and spraying with water
by watering cars were observed on the worksite during the follow-up inspection. Besides, 收費亭was
not managed by Contract No. HY/2013/02. Hence, the
complaint was found non-related to Contract No. HY/2013/02. The complaint
investigation report (Log No. 016) was provided in Appendix K.
4.2.6 Although the complaints were non-related to Contract No.
HY/2013/02, the Contractor of Contract No. HY/2013/02 was reminded to provide
appropriate mitigation measures such as:
1.
Collect wastewater by sedimentation tanks or package
treatment systems for proper treatment prior to disposal;
2.
Ensure
all silt removal facilities, channels and manholes were maintained and any
deposited silt and grit were removed regularly;
3.
Direct the wheel wash overflow and
surface
run-off to silt removal facilities before discharging to the storm drain;
4.
Wet the worksites with water regularly;
5.
Keep the watering record for inspection;
6.
Cover the dusty materials with impervious sheeting;
7.
Spray water during demolition activities
4.2.7
There were no notifications of summons
or prosecutions received during the reporting period.
4.2.8
Statistics
on environmental complaints,
notifications of summons and successful prosecutions are summarized in Appendix I.
5
Comments, recommendations and conclusion
5.1
Comments
5.1.1
According to the environmental site inspection undertaken during the
reporting period, the following recommendations were provided:
l The
Contractor was reminded to collect the general refuse properly;
l The
Contractor was reminded to sort the C & D materials and general
refuse;
l The
Contractor was reminded to provide drip tray for the chemical
containers;
l The
Contractor was reminded to provide drip tray for the
generators;
l The
Contractor was reminded to switch off the equipment while not in use;
l The
Contractor was reminded to clear the stagnant water pool;
l The
Contractor was reminded to provide appropriate
NRMM label for the machines;
l The
Contractor was reminded to sheltered on top and 3 sides during cement
mixing process;
l The
Contractor was reminded to spray the haul road with water regularly.
5.1.2 A summary of the Implementation Schedule of
Environmental Mitigation Measures (EMIS) is presented in Appendix E.
Most of the necessary mitigation measures were implemented properly.
5.2
Recommendations
5.2.1 With implementation of
the recommended environmental mitigation measures, the contract’s environmental
impacts were considered environmentally acceptable. The weekly environmental
site inspections ensured that all the environmental mitigation measures
recommended were effectively implemented.
5.2.2 The recommended
environmental mitigation measures, as included in the EM&A programme,
effectively minimize the potential environmental impacts from the Contract.
Also, the EM&A programme effectively monitored the environmental impacts
from the construction activities and ensure the proper implementation of
mitigation measures. No particular recommendation was advised for the
improvement of the programme.
5.3
Conclusions
5.3.1
The site preparation work of the Contract was started on 25 July 2014 and
the construction works of the Contract commenced on 24 November 2014. This is
the Twelfth Quarterly EM&A Report which summaries findings of the EM&A work
during the reporting period from 01 September 2017 to 30 November 2017.
5.3.2 Summary of Action and Limit Level exceedance
of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly
EM&A report prepared by Contract No. HY/2011/03.
5.3.3 There was no Action and Limit Level exceedance of 1-hr TSP
level and 24-hr TSP level recorded at station AMS7 by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
5.3.4
There was an
Action Level exceedance of 24-hr TSP level recorded
at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance, action taken and recommendation for mitigation)
for Action or Limit Level Non-compliance were provided in Appendix J.
5.3.5 There was no Action and Limit Level exceedance
for noise recorded at station NMS2 and station NMS3B by the
Environmental Team of Contract No. HY/2013/01 during the reporting period.
5.3.6 There were 144 action level exceedances and 34 limit level
exceedances of dissolved oxygen, 5 action level exceedances
and 1 limit level exceedance
of turbidity, 28 action
level exceedances and 5 limit level exceedances of suspended solid during the reporting period. The
following table summarized the number of exceedance
on each sampling date:
|
Sampling Date |
No. of Exceedances |
|||||
|
DO |
Turbidity |
SS |
||||
|
Action |
Limit |
Action |
Limit |
Action |
Limit |
|
|
1/9/2017 |
8 |
0 |
0 |
0 |
0 |
0 |
|
6/9/2017 |
4 |
4 |
1 |
0 |
3 |
0 |
|
8/9/2017 |
24 |
4 |
4 |
0 |
2 |
1 |
|
11/9/2017 |
30 |
3 |
0 |
0 |
0 |
0 |
|
13/9/2017 |
13 |
3 |
0 |
0 |
0 |
0 |
|
15/9/2017 |
10 |
2 |
0 |
1 |
0 |
0 |
|
18/9/2017 |
8 |
2 |
0 |
0 |
1 |
0 |
|
20/9/2017 |
3 |
2 |
0 |
0 |
1 |
0 |
|
22/9/2017 |
17 |
4 |
0 |
0 |
0 |
0 |
|
25/9/2017 |
1 |
1 |
0 |
0 |
1 |
0 |
|
27/9/2017 |
6 |
1 |
0 |
0 |
0 |
0 |
|
29/9/2017 |
13 |
0 |
0 |
0 |
0 |
0 |
|
2/10/2017 |
3 |
1 |
0 |
0 |
0 |
0 |
|
4/10/2017 |
3 |
4 |
0 |
0 |
0 |
0 |
|
6/10/2017 |
1 |
2 |
0 |
0 |
0 |
0 |
|
9/10/2017 |
0 |
1 |
0 |
0 |
0 |
0 |
|
18/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/10/2017 |
0 |
0 |
0 |
0 |
3 |
0 |
|
23/10/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
03/11/2017 |
0 |
0 |
0 |
0 |
3 |
1 |
|
06/11/2017 |
0 |
0 |
0 |
0 |
5 |
0 |
|
08/11/2017 |
0 |
0 |
0 |
0 |
2 |
2 |
|
13/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
15/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
20/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
22/11/2017 |
0 |
0 |
0 |
0 |
1 |
1 |
|
24/11/2017 |
0 |
0 |
0 |
0 |
1 |
0 |
|
Total: |
144 |
34 |
5 |
1 |
28 |
5 |
5.3.7
Impact dolphin
monitoring results at all transects were reported in the EM&A Report
prepared for Contract No. HY/2013/01.
5.3.8
Environmental site inspections were carried out on 07, 14, 21 and 28
September 2017, 06, 12, 19 and 26 October
2017 and 02, 09, 16, 23 and 30 November
2017. Recommendations on remedial actions were given to the Contractors for
the deficiencies identified during the site inspections.
5.3.9
There were two complaints received in relation to the environmental impact during the reporting period. The complaints
were found non-related to Contract No. HY/2013/02. The complaint investigation
reports (Log No. 015 and 016) were provided in Appendix K.
5.3.10
There was no notification of summons and
successful prosecution received during the reporting period.
- END OF REPORT -
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