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Job No.: TCS00694/13 |
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Agreement No. CE 45/2008
(CE) Liantang/Heung Yuen Wai Boundary Control Point
and Associated Works |
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Monthly Environmental Monitoring and Audit Report
(No.49) ¡V August 2017 |
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Prepared For |
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Civil Engineering and Development Department (CEDD) |
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Date |
Reference No. |
Prepared By |
Certified By |
12 September 2017 |
TCS00694/13/600/R1234v2 |
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Nicola Hon (Environmental Consultant) |
Tam Tak Wing (Environmental Team Leader) |
Version |
Date |
Remarks |
1 |
8 September 2017 |
First
Submission |
2 |
12 September 2017 |
Amended according to the IEC¡¦s comments on 12
September 2017 |
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executive summary
ES01
This is the 49th monthly EM&A
report presenting the monitoring results and inspection findings for the
reporting period from 1 to 31 August 2017 (hereinafter ¡¥the
Reporting Period¡¦).
Environmental
Monitoring and Audit Activities
ES02
To facilitate the project management and
implementation, Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the
Project is divided to seven CEDD contracts including Contract 2 (CV/2012/08), Contract
3 (CV/2012/09), Contract 4 (NE/2014/02),
Contract 5 (CV/2013/03), Contract 6 (CV/2013/08) and Contract 7 (NE/2014/03)
and an ArshSD contract (Contract SS C505).
ES03
In the Reporting Period, the major construction
works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the
Project included Contract 2, Contract 3, Contract 4, Contract 6, Contract 7 and Contract SS C505. Environmental monitoring activities
under the EM&A programme in the Reporting Period are summarized in the
following table.
Environmental Aspect |
Environmental Monitoring Parameters /
Inspection |
Reporting Period |
|
Number of Monitoring Locations to undertake |
Total Occasions |
||
Air Quality |
1-hour
TSP |
9 |
150 |
24-hour
TSP |
9 |
45 |
|
Construction Noise |
Leq(30min) Daytime |
10 |
50 |
Water Quality |
Water in-situ measurement and/or sampling |
WM1
& WM1-C |
13 Scheduled & 1 extra |
WM2A(a)
& WM2A-Cx |
13 Scheduled & 5 extra |
||
WM2B
& WM2B-C |
(*) 13 Scheduled |
||
WM3x
&WM3-C |
13 Scheduled & 2 extra |
||
WM4,
WM4-CA &WM4-CB |
13 Scheduled & 4 extra |
||
Ecology |
Woodland
compensation i)
General Health condition of planted species ii) Survival
of planted species |
9
Quadrats |
1 |
Joint Site Inspection / Audit |
IEC, ET,
the Contractor and RE joint site Environmental Inspection and Auditing |
Contract
2 |
4 |
Contract
3 |
5 |
||
Contract
4 (#) |
4 |
||
Contract
6 |
5 |
||
Contract
7 |
4 |
||
Contract
SS C505 (#) |
5 |
Note:
Extra monitoring day was due to measurement results exceedance
(#) IEC only joined one (1) event of site inspection for Contracts 4 and
SS C505.
(*)
Water sampling was unable to
carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm)
Action and Limit (A/L) Levels exceedance
ES04
In the Reporting Period, no air quality and construction noise exceedance was recorded.
For
water quality monitoring, twenty-six (26) Limit Level
exceedances were recorded under the Project. The summary of exceedance in the
Reporting Period is shown below.
Environmental Aspect |
Monitoring
Parameters |
Action Level |
Limit Level |
Event
& Action |
|||
NOE Issued |
Investigation
Result |
Project
related exceedance |
Corrective
Actions |
||||
Air Quality |
1-hour TSP |
0 |
0 |
0 |
-- |
-- |
-- |
24-hour TSP |
0 |
0 |
0 |
-- |
-- |
-- |
|
Construction Noise |
Leq(30min) Daytime |
0 |
0 |
0 |
-- |
-- |
-- |
Water Quality |
DO |
0 |
0 |
0 |
- |
-- |
-- |
Turbidity |
0 |
14 |
14 |
The exceedances
for 24, 28, 29 and 30 were under investigation. All other exceedances were not project-related |
0 |
The Contractors were reminded to implement water quality mitigation
measures in accordance with ISEMM of the EM&A Manual |
|
SS |
0 |
12 |
12 |
0 |
Environmental
Complaint
ES05
In
this Reporting Period, one (1) documented environmental complaint was received by
EPD regarding water quality issue for Contract 2. Investigation report (IR) for complaints
revealed that it was caused by rainstorm and emergency discharge by Contract 2.
The IR has completed and submitted
to relevant parties for record.
Notification of
Summons and Successful Prosecutions
ES06
No
environmental summons or successful prosecutions were recorded in the Reporting
Period.
Reporting Change
ES07
No reporting changes
were made in the Reporting Period.
ES08
In this Reporting Period, joint site inspection to evaluate the site
environmental performance at Contract 2 has been carried out by
the RE, IEC, ET and the Contractor on 4, 11, 18 and 25
August 2017.
No non-compliance was noted during the site inspection.
ES09
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
3 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 16, 24 and
31 August. No non-compliance was noted during the site
inspection.
ES10
In the Reporting Period, joint site
inspection to evaluate
the site environmental performance at Contract 4 has been
carried out by the RE, ET and the Contractor on 4, 11, 18 and 22
August 2017 in which IEC joined the site inspection on 22
August 2017. No non-compliance was noted.
ES11
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
6 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24 and 30 August 2017. No non-compliance was noted during the site
inspection.
ES12
In the Reporting Period, joint site
inspection for Contract 7 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on 4, 11, 15 and 25
August 2017. No non-compliance was noted during the site
inspection.
ES13
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
SS C505 has been carried out by the RE, ET and the Contractor on 2, 9, 16, 25 and
30 August 2017 in which IEC joined the site inspection on 25
August 2017. No non-compliance was noted during the site
inspection.
Future Key Issues
ES14
During wet
season, preventive
measures for muddy water or other water pollutants from site surface flow to local
stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should
be properly maintained. The
Contractors should paid special attention
on water quality mitigation measures and fully implement according ISEMM of the
EM&A Manual, in particular for working areas near Ma Wat Channel and Ping
Yuen River.
ES15
In addition, all effluent
discharge shall be ensure to fulfill Technical Memorandum of Effluent
Discharged into Drainage and Sewerage Systems, inland and Coastal Waters
criteria or discharge permits stipulation.
ES16
Construction noise would
be a key environmental issue during construction work of the Project. Noise mitigation measures such as using
quiet plants should be implemented in accordance with the EM&A requirement.
ES17
Since most of construction sites under the Project are
located adjacent to villages, the Contractors should fully
implement air quality mitigation measures to reduce construction dust emission.
Table of Contents
2 Project
Organization and Construction progress
2.1 Construction
Contract Packaging
2.5 Summary of Environmental Submissions
3 Summary
of Impact Monitoring Requirements
3.4 Monitoring
Frequency and Period
3.8 Derivation
of Action/Limit (A/L) Levels
3.9 Data
Management and Data QA/QC Control
4.2 Air
Quality Monitoring Results
5 Construction
Noise Monitoring
5.2 Noise
Monitoring Results (normal daytime)
6.2 Results
of Water Quality Monitoring
8.2 Records
of Waste Quantities
9.2 Findings
/ Deficiencies During the Reporting Month
10 Environmental
Complaint and Non-Compliance
10.1 Environmental
Complaint, Summons and Prosecution
11 Implementation
Status of Mitigation Measures
11.2 Tentative
Construction Activities in the Coming Month
11.3 Key
Issues for the Coming Month
12 Conclusions
and Recommendations
List
of TABLES
Table 2-1 Status
of Environmental Licenses and Permits of the Contracts
Table 3-1 Summary
of EM&A Requirements
Table 3-2 Impact
Monitoring Stations - Air Quality
Table 3-3 Impact
Monitoring Stations - Construction Noise
Table 3-4 Impact
Monitoring Stations - Water Quality
Table 3-5 Air
Quality Monitoring Equipment
Table 3-6 Construction
Noise Monitoring Equipment
Table 3-7 Water
Quality Monitoring Equipment
Table 3-8 Action
and Limit Levels for Air Quality Monitoring
Table 3-9 Action
and Limit Levels for Construction Noise
Table 3-10 Action and Limit
Levels for Water Quality
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM1a
Table 4-2 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM2
Table 4-3 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM3
Table 4-4 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM4B
Table 4-5 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM5a
Table 4-6 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM6
Table 4-7 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM7a
Table 4-8 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM8
Table 4-9 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM9b
Table 5-1 Summary
of Construction Noise Monitoring Results
Table 5-2 Summary
of Construction Noise Monitoring Results
Table 6-1 Summary
of Water Quality Monitoring Results for Contract 2 and 3
Table 6-2 Summary
of Water Quality Monitoring Results for Contract 6 and SS C505
Table 6-3 Summary
of Water Quality Monitoring Results for Contract 6
Table 6-4 Summary
of Water Quality Monitoring Results for Contract 2 and 6
Table 6-5 Action
and Limit (A/L) Levels Exceedance Recorded
Table 6-6 Summary
of Water Quality Exceedance in the Reporting Period
Table 8-1 Summary
of Quantities of Inert C&D Materials
Table 8-2 Summary
of Quantities of C&D Wastes
Table 9-1 Site
Observations for Contract 2
Table 9-2 Site
Observations for Contract 3
Table 9-3 Site
Observations for Contract 4
Table 9-4 Site
Observations for Contract 5
Table 9-5 Site
Observations for Contract 6
Table 9-6 Site
Observations for Contract SS C505
Table 10-1 Statistical
Summary of Environmental Complaints
Table 10-2 Statistical
Summary of Environmental Summons
Table 10-3 Statistical
Summary of Environmental Prosecution
Table 11-1 Environmental
Mitigation Measures
List of Appendices
Appendix A Layout Plan of the Project
Appendix
B Organization Chart
Appendix
C 3-month rolling
construction program
Appendix
D Designated
Monitoring Locations as Recommended in the Approved EM&A Manual
Appendix
E Monitoring
Locations for Impact Monitoring
Appendix
F Calibration
Certificate of Monitoring Equipment and HOKLAS-accreditation Certificate of the
Testing Laboratory
Appendix
G Event and Action
Plan
Appendix
H Impact Monitoring
Schedule
Appendix
I Database of
Monitoring Result
Appendix
J Graphical
Plots for Monitoring Result
Appendix
K Meteorological
Data
Appendix
L Waste Flow Table
Appendix
M Implementation Schedule
for Environmental Mitigation Measures
Appendix
N Investigation
Report for Exceedance
1.1.1
Civil Engineering and Development Department is the Project Proponent and the Permit Holder of Agreement No. CE 45/2008 (CE)
Liantang / Heung Yuen Wai Boundary Control Point and Associated Works,
which is a Designated Project to be implemented under Environmental Permit
number EP-404/2011/D granted on 20 January 2017.
1.1.2
The Project consists of two main components: Construction of a Boundary
Control Point (hereinafter referred as ¡§BCP¡¨); and Construction of a connecting
road alignment. Layout plan of the Project is shown in Appendix A.
1.1.3
The proposed BCP is located at the boundary with Shenzhen near the
existing Chuk Yuen Village, comprising a main
passenger building with passenger and cargo processing facilities and the
associated customs, transport and ancillary facilities. The connecting road alignment consists
of six main sections:
1)
Lin Ma Hang to Frontier Closed Area (FCA) Boundary ¡V this section
comprises at-grade and viaducts and includes the improvement works at Lin Ma
Hang Road;
2)
Ping Yeung to Wo Keng Shan ¡V this section
stretches from the Frontier Closed Area Boundary to the tunnel portal at Cheung
Shan and comprises at-grade and viaducts including an interchange at Ping
Yeung;
3)
North Tunnel ¡V this section comprises the tunnel segment at Cheung Shan
and includes a ventilation building at the portals on either end of the tunnel;
4)
Sha Tau Kok Road ¡V this section stretches from
the tunnel portal at Wo Keng Shan to the tunnel
portal south of Loi Tung and comprises at-grade and
viaducts including an interchange at Sha Tau Kok and
an administration building;
5)
South Tunnel ¡V this section comprises a tunnel segment that stretches from
Loi Tung to Fanling and
includes a ventilation building at the portals on either end of the tunnel as
well as a ventilation building in the middle of the tunnel near Lau Shui Heung;
6)
Fanling ¡V this section comprises the at-grade, viaducts and interchange
connection to the existing Fanling Highway.
1.1.4
Action-United
Environmental Services & Consulting has
been commissioned as an Independent ET to implement the relevant
EM&A program in accordance with the
approved EM&A Manual, as well as the associated duties. As part of the EM&A program,
the baseline monitoring has carried out between 13 June 2013 and 12 July
2013 for all parameters including air quality, noise and water quality
before construction work commencement.
The Baseline Monitoring Report summarized the key findings and the
rationale behind determining a set of Action and Limit Levels (A/L Levels) from
the baseline data. Also, the
Project baseline monitoring report which verified by the IEC has been submitted
to EPD on 16 July 2013 for
endorsement. The major construction
works of the Project was commenced on 16
August 2013 in accordance with the EP Section 5.3 stipulation.
1.1.5
This is 49th monthly EM&A
report presenting the monitoring results and inspection findings for reporting period from 1 to 31 August 2017.
1.2.1
The Monthly Environmental Monitoring and
Audit (EM&A) Report is structured into the following sections:-
Section 1 Introduction
Section 2 Project Organization and Construction
Progress
Section 3 Summary
of Impact Monitoring Requirements
Section 4 Air Quality Monitoring
Section 5 Construction Noise Monitoring
Section 6 Water Quality Monitoring
Section 7 Ecology Monitoring
Section 8 Waste Management
Section 9 Site Inspections
Section 10 Environmental
Complaints and Non-Compliance
Section 11 Implementation
Status of Mitigation Measures
Section 12 Conclusions
and Recommendations
2.1.1
To facilitate the project management and
implementation, the Project would be divided by the following contracts:
¡P
Contract 2 (CV/2012/08)
¡P
Contract 3 (CV/2012/09)
¡P
Contract 4 (NE/2014/02)
¡P
Contract 5 (CV/2013/03)
¡P
Contract 6 (CV/2013/08)
¡P
Contract 7 (NE/2014/03)
¡P
ArchSD Contract No. SS C505
2.1.2
The
details of each contracts is summarized below and the delineation of each contracts is shown in Appendix A.
Contract 2 (CV/2012/08)
2.1.3
Contract 2 has awarded in December 2013 and
construction work was commenced on 19 May 2014. Major Scope of Work of the Contract 2 is
listed below:
¡P
construction of
an approximately 5.2km long dual two-lane connecting road (with about 0.4km of
at-grade road and 4.8km of tunnel) connecting the Fanling Interchange with the
proposed Sha Tau Kok Interchange;
¡P
construction of a
ventilation adit tunnel and the mid-ventilation
building;
¡P
construction of
the north and south portal buildings of the Lung Shan Tunnel and their
associated slope works;
¡P
provision and
installation of ventilation system, E&M works and building services works
for Lung Shan tunnel and Cheung Shan tunnel and their portal buildings;
¡P
construction of
Tunnel Administration Building adjacent to Wo Keng
Shan Road and the associated E&M and building services works; and
¡P
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 3 (CV/2012/09)
2.1.4
Contract 3 was awarded in July 2013 and
construction work was commenced on 5 November 2013. Major Scope of Work of the Contract 3 is
listed below:
¡P
construction of
four link roads connecting the existing Fanling Highway and the south portal of
the Lung Shan Tunnel;
¡P
realignment of
the existing Tai Wo Service Road West and Tai Wo Service Road East;
¡P
widening of the
existing Fanling Highway (HyD¡¦s
entrustment works);
¡P
demolishing
existing Kiu Tau vehicular bridge and Kiu Tau footbridge and reconstruction of
the existing Kiu Tau Footbridge (HyD¡¦s entrustment
works); and
¡P
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 4 (NE/2014/02)
2.1.5
Contract
4 has awarded in mid-April 2016 and
construction work was commenced
on 2 May 2017. The scope of work of the Contract 4
includes:
¡P
design, supply,
delivery, installation, testing and commissioning of a traffic control and
surveillance system for the connecting road linking up the Liantang / Heung
Yuen Wai Boundary Control Point and the existing Fanling Highway.
Contract 5 (CV/2013/03)
2.1.6
Contract 5 has awarded in April 2013 and
construction work was commenced in August 2013. Major Scope of Work of the Contract 5 is
listed below:
¡P
site formation of about 23
hectares of land for the development of the BCP;
¡P
construction of an
approximately 1.6 km long perimeter road at the BCP including a 175m long
depressed road;
¡P
associated
diversion/modification works at existing local roads and junctions including
Lin Ma Hang Road;
¡P
construction of pedestrian
subway linking the BCP to Lin Ma Hang Road;
¡P
provision of resite area with supporting infrastructure for reprovisioning of the affected village houses; and
¡P
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 6 (CV/2013/08)
2.1.7
Contract 6 has awarded in June 2015 and
construction work was commenced on 23 October 2015. Major Scope of Work of the Contract 6 would
be included below:
construction of an approximately 4.6km long dual two-lane connecting
road (with about 0.6km of at-grade road, 3.3km of viaduct and 0.7km of tunnel)
connecting the BCP with the proposed Sha Tau Kok Road
Interchange and the associated ventilation buildings;
associated diversion/modification works at access roads to the resite of Chuk Yuen Village;
provision of sewage collection, treatment and disposal facilities for
the BCP and the resite of Chuk
Yuen Village;
construction of a pedestrian subway linking the BCP to Lin Ma Hang
Road;
provisioning of the affected facilities including Wo Keng Shan Road garden; and
construction of
associated footpath, slopes, retaining structures, drainage, sewerage,
waterworks, landscaping works and other ancillary works.
Contract 7 (NE/2014/03)
2.1.8
Contract 7 has awarded in December 2015 and
the construction works of Contract 7 was commenced on 15 February 2016. Major Scope of Work of the Contract 7 would
be included below:
construction of the Hong Kong Special
Administrative Region (HKSAR) portion of four vehicular bridge
construction of one pedestrian bridge crossing Shenzhen (SZ) River
(cross boundary bridges)
ArchSD Contract No. SS C505
2.1.9
SS C505 has awarded in July 2015 and
construction work was commenced on 1 September 2015. Major Scope of Work of the SS C505 would
be included below:
passenger-related facilities including
processing kiosks and examination facilities for private cars and coaches,
passenger clearance building and halls, the interior fitting works for the pedestrian
bridge crossing Shenzhen River, etc.;
cargo processing facilities including kiosks
for clearance of goods vehicles, customs inspection platforms, X-ray building,
etc.;
accommodation for the facilities inside of the
Government departments providing services in connection with the BCP;
transport-related facilities inside the BCP
including road networks, public transport interchange, transport drop-off and
pick-up areas, vehicle holding areas and associated road furniture etc;
a public carpark; and
other ancillary facilities such as sewerage
and drainage, building services provisions and electronic systems, associated
environmental mitigation measure and landscape works.
2.2.1
The project organization is shown in Appendix B. The responsibilities
of respective parties are:
Civil
Engineering and Development Department (CEDD)
2.2.2
CEDD is the Project Proponent and the Permit Holder of the EP of the development
of the Project and will assume overall responsibility for the project. An Independent
Environmental Checker (IEC) shall be employed by CEDD to audit the results of
the EM&A works carried out by the ET.
Architectural
Services Department (ArchSD)
2.2.3
ArchSD acts as
the works agent for Development Bureau (DEVB), for Contract SS C505 Liantang/ Heung Yuen Wai Boundary Control Point (BCP) ¡V BCP
Buildings and Associated Facilities.
Environmental
Protection Department (EPD)
2.2.4
EPD is the statutory enforcement body for
environmental protection matters in Hong Kong.
Ronald Lu
& Partners (Hong Kong) Ltd (The Architect)
2.2.5
Ronald Lu & Partners (Hong Kong) Ltd is
appointed by ArchSD as an Architect for Contract SS
C505 Liantang/ Heung Yuen Wai Boundary Control Point
(BCP) ¡V BCP Buildings and Associated Facilities. It responsible for overseeing the
construction works of Contract SS C505 and for ensuring that the works are
undertaken by the Contractor in accordance with the specification and contract
requirements. The duties and responsibilities of the Architect with respect to
EM&A are:
Monitor the Contractors¡¦ compliance with
contract specifications, including the implementation and operation of the
environmental mitigation measures and their effectiveness
Monitor Contractors¡¦ and ET¡¦s compliance with
the requirements in the Environmental Permit (EP) and EM&A Manual
Facilitate ET¡¦s implementation of the EM&A
programme
Participate in joint site inspection by the ET
and IEC
Oversee the implementation of the agreed Event
/ Action Plan in the event of any exceedance
Adhere to the procedures for carrying out
complaint investigation
Liaison with DSD, Engineer/Engineer¡¦s
Representative, ET, IEC and the Contractor of the ¡§Construction of the DSD¡¦s Regulation
of Shenzhen River Stage 4 (RSR 4)¡¨ Project discussing regarding the cumulative
impact issues.
Engineer
or Engineers Representative (ER)
2.2.6
The ER is responsible for overseeing the
construction works and for ensuring that the works are undertaken by the
Contractor in accordance with the specification and contract requirements. The
duties and responsibilities of the ER with respect to EM&A are:
¡P
Monitor the Contractors¡¦ compliance with
contract specifications, including the implementation and operation of the
environmental mitigation measures and their effectiveness
¡P
Monitor Contractors¡¦s,
ET¡¦s and IEC¡¦s compliance with the requirements in the Environmental Permit
(EP) and EM&A Manual
¡P
Facilitate ET¡¦s implementation of the
EM&A programme
¡P
Participate in joint site inspection by the
ET and IEC
¡P
Oversee the implementation of the agreed
Event / Action Plan in the event of any exceedance
¡P
Adhere to the procedures for carrying out
complaint investigation
¡P
Liaison with DSD, Engineer/Engineer¡¦s
Representative, ET, IEC and the Contractor of the ¡§Construction of the DSD¡¦s Regulaiton of Shenzhen River Stage 4 (RSR 4)¡¨ Project
discussing regarding the cumulative impact issues.
The
Contractor(s)
2.2.7
There will be one contractor for each
individual works contract. Once the contractors are appointed, EPD, ET and IEC
will be notified the details of the contractor.
2.2.8
The Contractor for Contracts under CEDD
should report to the ER. For ArchSD Contract, the
Contractor should report to the Architect or Architect¡¦s Representative (AR).
The duties and responsibilities of the Contractor are:
¡P
Comply with the relevant contract conditions
and specifications on environmental protection
¡P
Employ an Environmental Team (ET) to
undertake monitoring, laboratory analysis and reporting of EM &A Facilitate
ET¡¦s monitoring and site inspection activities
¡P
Participate in the site inspections by the ET
and IEC, and undertake any corrective actions
¡P
Provide information / advice to the ET
regarding works programme and activities which may contribute to the generation
of adverse environmental impacts
¡P
Submit proposals on mitigation measures in
case of exceedances of Action and Limit levels in accordance with the Event /
Action Plans
¡P
Implement measures to reduce impact where
Action and Limit levels are exceeded
¡P
Adhere to the procedures for carrying out
complaint investigation
Environmental Team (ET)
2.2.9
Once the ET is appointed, the EPD, CEDD, ER, Architect
and IEC will be notified the details of the ET.
2.2.10
The ET shall not be in any way an associated
body of the Contractor(s), and shall be employed by the Project
Proponent/Contractor to conduct the EM&A programme. The ET should be managed by the ET
Leader. The ET Leader shall be a person who has at least 7 years¡¦ experience in
EM&A and has relevant professional qualifications. Suitably qualified staff
should be included in the ET, and resources for the implementation of the
EM&A programme should be allocated in time under the Contract(s), to enable
fulfillment of the Project¡¦s EM&A requirements as specified in the EM&A
Manual during construction of the Project.
The ET shall report to the Project Proponent and the duties shall
include:
¡P
Monitor and audit various environmental
parameters as required in this EM&A Manual
¡P
Analyse the
environmental monitoring and audit data, review the success of EM&A
programme and the adequacy of mitigation measures implemented, confirm the
validity of the EIA predictions and identify any adverse environmental impacts
arising
¡P
Carry out regular site inspection to
investigate and audit the Contractors¡¦ site practice, equipment/plant and work
methodologies with respect to pollution control and environmental mitigation,
and effect proactive action to pre-empt problems
¡P
Monitor compliance with conditions in the EP,
environmental protection, pollution prevention and control regulations and
contract specifications
¡P
Audit environmental conditions on site
¡P
Report on the environmental monitoring and
audit results to EPD, the ER, the Architect, the lEC
and Contractor or their delegated representatives
¡P
Recommend suitable mitigation measures to the
Contractor in the case of exceedance of Action and Limit levels in accordance
with the Event and Action Plans
¡P
Liaise with the IEC on all environmental
performance matters and timely submit all relevant EM&A proforma
for approval by IEC
¡P
Advise the Contractor(s) on environmental
improvement, awareness, enhancement measures etc., on site
¡P
Adhere to the procedures for carrying out
complaint investigation
¡P
Liaison with the client departments,
Engineer/Engineer¡¦s Representative, ET, lEC and the
Contractor(s) of the concurrent projects as listed under Section 2.3 below
regarding the cumulative impact issues.
Independent Environmental Checker (IEC)
2.2.11
One IEC will be employed for this Project.
Once the IEC is appointed, EPD, ER, the Architect and ET will be notified the
details of the IEC.
2.2.12
The Independent Environmental Checker (IEC)
should not be in any way an associated body of the Contractor or the ET for the
Project. The IEC should be employed by the Permit Holder (i.e., CEDD) prior to
the commencement of the construction of the Project. The IEC should have at
least 10 years¡¦ experience in EM&A and have relevant professional
qualifications. The appointment of IEC should be subject to the approval of
EPD. The IEC should:
¡P
Provide proactive advice to the ER and the
Project Proponent on EM&A matters related to the project, independent from
the management of construction works, but empowered to audit the environmental
performance of construction
¡P
Review and audit all aspects of the EM&A
programme implemented by the ET
¡P
Review and verify the monitoring data and all
submissions in connection with the EP and EM&A Manual submitted by the ET
¡P
Arrange and conduct regular, at least monthly
site inspections of the works during construction phase, and ad hoc inspections
if significant environmental problems are identified
¡P
Check compliance with the agreed Event /
Action Plan in the event of any exceedance
¡P
Check compliance with the procedures for
carrying out complaint investigation
¡P
Check the effectiveness of corrective
measures
¡P
Feedback audit results to ET by signing off
relevant EM&A proforma
¡P
Check that the mitigation measures are
effectively implemented
¡P
Verify the log-book(s) mentioned in Condition
2.2 of the EP, notify the Director by fax, within one working day of receipt of
notification from the ET Leader of each and every occurrence, change of
circumstances or non-compliance with the EIA Report and/or the EP, which might
affect the monitoring or control of adverse environmental impacts from the
Project
¡P
Report the works conducted, the findings, recommendation
and improvement of the site inspections, after reviewing ET¡¦s and Contractor¡¦s
works, and advices to the ER and Project Proponent on a monthly basis
¡P
Liaison with the client departments,
Engineer/Engineer¡¦s Representative, the Architect, ET, lEC
and the Contractor of the concurrent projects as listed under Section 2.3 below
regarding the cumulative impact issues.
2.3.1
The concurrent construction works that may be
carried out include, but not limited to, the following:
(a)
Regulation of Shenzhen River Stage IV;
(b)
Widening of Fanling Highway ¡V Tai Hang to Wo
Hop Shek Interchange ¡V Contract No. HY/2012/06;
(c)
Construction of BCP
facilities in Shenzhen.
2.4.1
In the Reporting Period, the major
construction activity conducted under the Project is located in Contracts 2, 3,
6, 7 and SS C505 and they are summarized in below. Moreover, 3-month rolling construction
program for all the current contracts is enclosed in Appendix C.
Contract 2 (CV/2012/08)
2.4.2
The
contract commenced in May 2014. In this Reporting Period, construction
activities conducted are listed below:
Mid-Vent Portal |
Adit waterproofing and
lining
Stud tunnel post-excavation activities and
earthworks
Structure connecting adit
tunnel and ventilation building
Ventilation building superstructure
Ventilation building internal structure |
North Portal |
Southbound tunnel waterproofing and lining
formwork
Southbound tunnel bench enlargement
Southbound tunnel internal structure, backfilling
and cross passage
Tunnel Boring Machine (TBM) North drive
excavation
Northbound tunnel top heading and bench excavation,
water proofing and lining
North ventilation building structure
Construction of retaining wall
Mucking out from tunnels |
South Portal |
Post-excavation tunnel activities
South ventilation building superstructure and internal structure
Tunnel invert, waterproofing, lining, internal
structure and cross passage
Construction of retaining wall
Mucking out from tunnels |
Admin Building |
Construction of
fence wall, curtain wall, drainage, internal structure, underground utilities
and E&M installation |
Contract 3 (CV/2012/09)
2.4.3
The Contract commenced in November 2013. In this Reporting Period, construction
activities conducted are listed below:
Boundary Wall for DSD Pumping Station
Installation of
Noise Barrier Steel Column & Panel
Remaining works on New Kiu Tau Footbridge
Mini-pile
Installation
Noise barrier
construction
Road works
Viaduct Segment
Erection
Water Main
Laying
Parapet
installation on bridge deck
Construction of Profile
Barrier and Planter Wall on Bridge deck
Drainage Work
Stressing of
External Tendon
Construction of Abutment
Wall
Contract 4 (NE/2014/02)
2.4.4
The
Contract was awarded in mid-April 2016 and the construction work was commenced on 2 May 2017. In this Reporting Period, construction
activities conducted are listed below:
System design
E&M installation
at Admin Building
Contract 5 (CV/2013/03)
2.4.5
As advised by the ER, the construction works
under Contract 5 was substantially completed on 31 August 2016.
Contract 6 (CV/2013/08)
2.4.6
Contract 6 has awarded in June 2015 and
construction work was commenced on 23 October 2015. In this Reporting Period,
construction activities conducted are listed below:
Bridge
Pier Construction
Bridge
Segment Erection
Tunnel
Excavation
Sewage
Treatment Plant Construction
Tunnel Ventilation Building Construction
Slip Road/ At-grade Road/ Periphery Road Construction
Contract 7 (NE/2014/03)
2.4.7
Contract 7 has awarded in December 2015 and
construction work was commenced on 15 February 2016. In this Reporting Period, construction
activities conducted are listed below:
U-trough
construction at Bridges A and E
Column
construction at Bridges A and E
Abutment
construction at Bridge E
Deck
construction at Bridge B and D
Installation
of Façade at Bridge C
Contract SS C505
2.4.8
Contract SS C505 has awarded in July 2015 and
construction work was commenced on 1 September 2015. In this Reporting Period, construction
activities conducted are listed below:
Building no. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 13, 18 and 41 construction
Tower crane operation
Bridge construction works including
construction of bridge column, retaining wall, pile cap, pier, abutment, road
and finishes works
Underground drainage works, Road Works, CLP
Cable laying and Landscaping
Formwork and falsework for PTB¡¦s slab
construction and Bridges Decks
Construction PTB M/F, 1/F, 2/F and Roof flat
slab
Steel beam works for maintenance platform for
PTB
PTB backfilling works
Elevated Walkway E1, E2, E3 and E4
construction
Bridge deck construction for Bridges 1 - 5
2.5.1
In according to the EP, the required
documents have submitted to EPD which listed in below:
Project Layout Plans of Contracts 2, 3, 4, 5,
6, 7 and SS C505
Landscape Plan
Topsoil Management Plan
Environmental Monitoring and Audit Programme
Baseline Monitoring Report
(TCS00690/13/600/R0030v3) for the Project
Waste Management Plan of the Contracts 2, 3, 4,
5, 6, 7 and SS C505
Contamination Assessment Plan (CAP) and
Contamination Assessment Report (CAR) for Po Kat Tsai, Loi
Tung and the workshops in Fanling
Vegetation Survey Report
Woodland Compensation Plan
Habitat Creation Management Plan
Wetland Compensation Plan
2.5.2
Summary of
the relevant permits, licenses, and/or notifications on environmental
protection for the Project of each contracts are presented in Table 2-1.
Table 2-1 Status of Environmental
Licenses and Permits of the Contracts
Item |
Description |
License/Permit Status |
|||||||
Ref. no. |
Effective Date |
Expiry Date |
|||||||
Contract 2 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref No.: 368864 |
31 Dec 2013 |
Till Contract ends |
|||||
2 |
Chemical Waste Producer Registration |
North Portal Waste
Producers Number: No.5213-652-D2523-01 |
25 Mar 2014 |
Till Contract ends |
|||||
Mid-Vent Portal Waste
Producers Number: No.5213-634-D2524-01 |
25 Mar 2014 |
Till Contract ends |
|||||||
South Portal Waste
Producers Number: No.5213-634-D2526-01 |
9 Apr 2014 |
Till Contract ends |
|||||||
3 |
Water Pollution Control Ordinance - Discharge License |
No.WT00018374-2014 |
8 Oct 2014 |
30 Sep 2019 |
|||||
No.: W5/1I389 |
28 Mar 2014 |
31 Mar 2019 |
|||||||
No. WT00023063-2015 |
18 Dec 2015 |
31 Mar 2019 |
|||||||
No.: W5/1I392 |
28 Mar 2014 |
31 Mar 2019 |
|||||||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7019105 |
8 Jan 2014 |
Till Contract ends |
|||||
5 |
Construction Noise Permit |
GW-RN0228-17 |
01-Apr-2017 |
16-Sep-2017 |
|||||
GW-RN0288-17 |
26-Apr-2017 |
20-Oct-2017 |
|||||||
GW-RN0291-17 |
26-Apr-2017 |
20-Oct-2017 |
|||||||
GW-RN0318-17 |
09-May-2017 |
27-Oct-2017 |
|||||||
GW-RN0371-17 |
07-Jun-2017 |
30-Sep-2017 |
|||||||
GW-RN0373-17 |
07-Jun-2017 |
30-Sep-2017 |
|||||||
GW-RN0484-17 |
30-Jul-2017 |
20-Jan-2018 |
|||||||
GW-RN0515-17 |
10-Aug-2017 |
01-Feb-2018 |
|||||||
GW-RN0519-17 |
10-Aug-2017 |
01-Feb-2018 |
|||||||
6 |
Specified Process License (Mortar
Plant Operation) |
L-3-251(1) |
12 Apr 2016 |
11 Apr 2021 |
|||||
Contract 3 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 362101 |
17 Jul 2013 |
Till Contract ends |
|||||
2 |
Chemical Waste Producer Registration |
Waste Producers Number:
No.:5113-634-C3817-01 |
7 Oct 2013 |
Till Contract ends |
|||||
3 |
Water Pollution Control Ordinance - Discharge License |
No.:WT00016832 ¡V 2013 |
28 Aug 13 |
31 Aug
2018 |
|||||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7017914 |
2 Aug 13 |
Till Contract ends |
|||||
5 |
Construction Noise
Permit |
GW-RN0040-17 |
25 Feb 2017 |
24 Aug 2017 |
|||||
GW-RN0069-17 |
15 Feb 2017 |
14 Aug 2017 |
|||||||
GW-RN0071-17 |
16 Feb 2017 |
15 Aug 2017 |
|||||||
GW-RN0115-17 |
2 Mar 2017 |
26 Aug 2017 |
|||||||
GW-RN0161-17 |
1 Apr 2017 |
30 Sep 2017 |
|||||||
GW-RN0185-17 (cancelled on
4 Aug 2017) |
1 Apr 2017 |
30 Sep 2017 |
|||||||
GW-RN0204-17 |
30 Mar 2017 |
29 Sep 2017 |
|||||||
GW-RN0213-17 (cancelled on
4 Aug 2017) |
6 Apr 2017 |
9 Sep 2017 |
|||||||
GW-RN0219-17 |
31 Mar 201 |
30 Sep 2017 |
|||||||
GW-RN0235-17 |
11 Apr 2017 |
7 Oct 2017 |
|||||||
GW-RN0236-17 |
10 Apr 2017 |
16 Sep 2017 |
|||||||
GW-RN0302-17 |
30 Apr 2017 |
29 Oct 2017 |
|||||||
GW-RN0303-17 |
11 May 2017 |
10 Nov 2017 |
|||||||
GW-RN0342-17 |
28 May 2017 |
20 Nov 2017 |
|||||||
GW-RN0376-17 |
22 Jun 2017 |
21 Dec 2017 |
|||||||
GW-RN0378-17 |
22 Jun 2017 |
21 Dec 2017 |
|||||||
GW-RN0384-17 |
12 Jun 2017 |
9 Sep 2017 |
|||||||
GW-RN0417-17 |
27 Jun 2017 |
16 Dec 2017 |
|||||||
GW-RN0458-17 |
16 Jul 2017 |
18 Dec 2017 |
|||||||
GW-RN0477-17 |
28 Jul 2017 |
5 Jan 2018 |
|||||||
GW-RN0500-17 |
29 Aug 2017 |
24 Feb 2018 |
|||||||
GW-RN0501-17 |
25 Aug 2017 |
24 Feb 2018 |
|||||||
GW-RN0508-17 |
16 Aug 2017 |
15 Feb 2018 |
|||||||
GW-RN0510-17 |
16 Aug 2017 |
18 Nov 2018 |
|||||||
Contract 5 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 359338 |
13 May 2013 |
Till the end of Contract |
|||||
2 |
Chemical Waste Producer Registration |
Waste Producers Number No.: 5213-642-S3735-01 |
8 Jun 2013 |
Till the end of Contract |
|||||
3 |
Water Pollution Control Ordinance - Discharge License |
No.: W5/1G44/1 |
8 Jun 13 |
30 Jun 2018 |
|||||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7017351 |
29 Apr 13 |
Till the end of Contract |
|||||
Contract 6 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 390614 |
29 Jun 2015 |
Till the end of Contract |
|||||
2 |
Chemical Waste Producer Registration |
Waste Producers Number No.: 5213-652-C3969-01 |
31 Aug 2015 |
Till the end of Contract |
|||||
3 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7022707 |
9 Jul 2015 |
Till the end of Contract |
|||||
4 |
Water Pollution Control Ordinance - Discharge License |
No.:WT00024574-2016 |
31 May
2016 |
31 May
2021 |
|||||
No.:WT00024576-2016 |
31 May
2016 |
31 May
2021 |
|||||||
No.:WT00024742-2016 |
14 June 2016 |
30 June 2021 |
|||||||
No.:WT00024746-2016 |
14 June 2016 |
30 June 2021 |
|||||||
5 |
Construction Noise
Permit |
GW-RN0361-17 |
1
Jun 2017 |
31
Aug 2017 |
|||||
GW-RN0427-17 |
3
Jul 2017 |
31
Aug 2017 |
|||||||
GW-RW0478-17 |
30
Jul 2017 |
27
Aug 2018 |
|||||||
GW-RW0542-17 |
21
Aug 2017 |
20
Jan 2018 |
|||||||
GW-RW0428-17 |
28
Aug 2017 |
27
Feb 2018 |
|||||||
Contract SS C505 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 390974 |
13 Jul 2015 |
Till the end of Contract |
|||||
2 |
Chemical Waste Producer Registration |
Waste Producer No.: 5213-642-L1048-07 |
16 Sep 2015 |
Till the end of Contract |
|||||
3 |
Water Pollution Control Ordinance - Discharge License |
No.: WT00024865-2016 |
8 Jul 2016 |
30 Nov 2020 |
|||||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7022831 |
23 Jul 2015 |
Till the end of Contract |
|||||
5 |
Construction Noise
Permit |
GW-RN0355-17 |
30 May 2017 |
25 Nov 2017 |
|||||
GW-RN0418-17 (superseded
by GW-RN0499-17 on 7 Aug
2017) |
21 Jun 2017 |
15 Dec 2017 |
|||||||
GW-RN0499-17 |
7 Aug 2017 |
6 Oct 2017 |
|||||||
Contract
7 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 397015 |
21 Dec 2015 |
Till the end of Contract |
|||||
2 |
Chemical Waste Producer Registration |
Waste Producer No.: 5214-641-K3202-01 |
24 Mar 2016 |
Till the end of Contract |
|||||
3 |
Water Pollution Control Ordinance - Discharge License |
No.: WT00024422-2016 |
10 May
2016 |
31 May
2021 |
|||||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7024129 |
21 Jan 2016 |
Till the end of Contract |
|||||
5 |
Construction Noise
Permit |
GW-RN0321-17 |
10 May 2017 |
4 Nov 2017 |
|||||
Contract 4 |
|||||||||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No.
405353 |
22 July 2016 |
Till the end of Contract |
|||||
2 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7024973 |
13 May 2016 |
Till the end of Contract |
|||||
3.1.1
The Environmental Monitoring and Audit
requirements are set out in the Approved EM&A manual. Environmental issues
such as air quality, construction noise and water quality were identified as
the key issues during the construction phase of the Project.
3.1.2
A summary of construction phase EM&A
requirements are presented in the
sub-sections below.
3.2.1
The EM&A program of construction phase
monitoring shall cover the following environmental issues:
•
Air quality;
•
Construction noise; and
•
Water quality
3.2.2
A summary of the monitoring parameters is
presented in Table 3-1.
Table 3-1 Summary
of EM&A Requirements
Environmental Issue |
Parameters |
Air Quality |
1-hour
TSP by Real-Time Portable Dust Meter; and 24-hour
TSP by High Volume Air Sampler. |
Noise |
Leq(30min) in
normal working days (Monday to Saturday) 07:00-19:00 except public holiday;
and 3 sets
of consecutive Leq(5min) on
restricted hours i.e. 19:00 to 07:00 next day, and whole day of public
holiday or Sunday Supplementary
information for data auditing, statistical results such as L10 and
L90 shall also be obtained for reference. |
Water Quality |
In-situ Measurements Dissolved
Oxygen Concentration (mg/L); Dissolved
Oxygen Saturation (% ); Turbidity
(NTU); pH unit; Water
depth (m); and Temperature
(¢J). |
Laboratory Analysis
Suspended
Solids (mg/L) |
3.3.1
The designated monitoring locations as
recommended in the EM&A Manual
are shown in Appendix D. As the access to some of the designated
monitoring locations was questionable due to safety reason or denied by the
landlords, alternative locations therefore have had proposed. The proposed
alternative monitoring locations has updated in the revised EM&A Programme
which verified by IEC and certified by ET Leader prior submitted to EPD on 10
July 2013. Table 3-2, Table
3-3 and Table 3-4 are respectively listed the air quality, construction
noise and water quality monitoring locations for the Project and a map showing
these monitoring stations is presented in Appendix E.
Table 3-2 Impact
Monitoring Stations - Air Quality
Station ID |
Description |
Works Area |
Related to the Work Contract |
AM1b^ |
Open area at Tsung Yuen Ha Village |
BCP |
SS C505 Contract 7 |
AM2 |
Village House
near Lin Ma Hang Road |
LMH to Frontier
Closed Area |
Contract 6 |
AM3 |
Ta Kwu Ling Fire Service Station of Ta Kwu
Ling Village. |
LMH to Frontier
Closed Area |
Contract 6 |
AM4b^ |
House no. 10B1 Nga Yiu Ha Village |
LMH to Frontier
Closed Area |
Contract 6 |
AM5a^ |
Ping Yeung
Village House |
Ping Yeung to
Wo Keng Shan |
Contract 6 |
AM6 |
Wo Keng Shan Village House |
Ping Yeung to
Wo Keng Shan |
Contract 6 |
AM7b@ |
Loi Tung Village House |
Sha Tau Kok Road |
Contract 2 Contract 6 |
AM8 |
Po Kat Tsai
Village No. 4 |
Po Kat Tsai |
Contract 2 |
AM9b# |
Nam Wa Po Village House No. 80 |
Fanling |
Contract 3 |
# Proposal for the change of air quality monitoring location from AM9a
to AM9b was submitted to EPD on 4 Nov 2013 after verified by the IEC and it was
approved by EPD (EPD¡¦s ref.: (15) in EP 2/N7/A/52 Pt.10 dated 8 Nov 2013).
* Proposal for the change of air quality monitoring location from AM1to
AM1a was submitted to EPD on 24 March 2014 after verified by the IEC. It was
approved by EPD (EPD¡¦s ref.: (6) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).
@ Proposal for the change of air quality monitoring location from AM7a to
AM7b was submitted to EPD on 4 June 2014 after verified by the IEC. It was
approved by EPD (EPD¡¦s ref.: (7) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).
^ Proposal for change of air quality monitoring locations was enclosed
in the updated EM&A Programme which approval by EPD on 29 Mar 2016.
Table 3-3 Impact
Monitoring Stations - Construction Noise
Station ID |
Description |
Works Area |
Related to the Work Contract |
NM1 |
Tsung Yuen Ha Village House No. 63 |
BCP |
SS C505 Contract 7 |
NM2a# |
Village House near Lin Ma Hang
Road |
Lin Ma Hang to Frontier Closed
Area |
Contract 6 |
NM3 |
Ping Yeung Village House (facade
facing northeast) |
Ping Yeung to Wo Keng Shan |
Contract 6 |
NM4 |
Wo Keng
Shan Village House |
Ping Yeung to Wo Keng Shan |
Contract 6 |
NM5 |
Village House, Loi
Tung |
Sha Tau Kok
Road |
Contract 2, Contract 6 |
NM6 |
Tai Tong Wu Village House 2 |
Sha Tau Kok
Road |
Contract 2, Contract 6 |
NM7 |
Po Kat Tsai Village |
Po Kat Tsai |
Contract 2 |
NM8 |
Village House, Tong Hang |
Fanling |
Contract 2 Contract 3 |
NM9 |
Village House, Kiu Tau Village |
Fanling |
Contract 3 |
NM10 |
Nam Wa
Po Village House No. 80 |
Fanling |
Contract 3 |
# Proposal for the change of construction noise monitoring location from
NM2 to NM2a was verified by the IEC on 6 May 2016 and was effective on 9 May
2016.
Table 3-4 Impact
Monitoring Stations - Water Quality
Station ID |
Description |
Coordinates of Designated / Alternative Location |
Nature of the location |
Related to the Work Contract |
|
Easting |
Northing |
||||
WM1 |
Downstream of Kong Yiu Channel |
833 679 |
845 421 |
Alternative location located at upstream 51m of the designated location |
SS C505 Contract 6 |
WM1- Control |
Upstream of Kong Yiu Channel |
834 185 |
845 917 |
NA |
SS C505 Contract 6 |
WM2A |
Downstream of River Ganges |
834 204 |
844 471 |
Alternative location located at upstream 81m of the designated location |
Contract 6 |
WM2A(a)* |
Downstream of River Ganges |
834 191 |
844 474 |
Alternative location located at upstream 70m of the designated location |
Contract 6 |
WM2A- Controlx# |
Upstream of River Ganges |
835 377 |
844 188 |
Alternative location located at upstream 160m of the designated location |
Contract 6 |
WM2B |
Downstream of River Ganges |
835 433 |
843 397 |
NA |
Contract 6 |
WM2B- Control |
Upstream of River Ganges |
835 835 |
843 351 |
Alternative location located at downstream 31m of the designated
location |
Contract 6 |
WM3x# |
Downstream of River Indus |
836 206 |
842 270 |
Alternative location located at downstream 180m of the designated
location |
Contract 2 Contract 6 |
WM3- Control |
Upstream of River Indus |
836 763 |
842 400 |
Alternative location located at downstream 26m of the designated
location |
Contract 2 Contract 6 |
WM4 |
Downstream of Ma Wat Channel |
833 850 |
838 338 |
Alternative location located at upstream 11m of the designated location |
Contract 2 Contract 3 |
WM4¡V Control A |
Kau Lung Hang
Stream |
834 028 |
837 695 |
Alternative location located at downstream 28m of the designated
location |
Contract 2 Contract 3 |
WM4¡V Control B |
Upstream of Ma Wat Channel |
833760 |
837395 |
Alternative location located at upstream 15m of the designated location |
Contract 2 Contract 3 |
Note: EPD has
approved the revised EM&A Programme (Rev.7) which proposed that (1) if the
measured water depth of the monitoring station is lower than 150 mm,
alternative location based on the criteria were selected to perform water
monitoring; and (2) If no suitable alternative location could be found within
15m far from the original location, the sampling at that location will be
cancelled since sampling at too far from the designated location could not make
a representative sample in accordance with the updated EM&A Programme (Rev.
07) (Section 4.1.4) (EPD ref.: ( ) in EP2/N7/A/52 Ax(1) Pt.20 dated 7 April
2017)
(*)
Proposal for the
change of water monitoring location from WM2A to WM2A(a) was verified by the
IEC and it was approved by EPD. (EPD¡¦s ref. (10) in EP 2/N7/A/52 Pt.19)
(#) Proposal for the change of water quality monitoring location (WM3x and WM2A-Cx was included in the EM&A Programme Rev .05 which approved by EPD on 29 March
2016 (EPD ref.: (3) in EP2/N7/A/52 Ax(1) Pt.19)
The requirements of impact monitoring are stipulated in Sections 2.1.6, 3.1.5 and 4.1.6 of the approved EM&A Manual and presented as
follows.
Air Quality Monitoring
3.4.1
Frequency of impact air quality monitoring is
as follows:
1-hour TSP |
3 times every six
days during course of works |
24-hour TSP |
Once every 6 days
during course of works. |
Noise Monitoring
3.4.2
One set of Leq(30min)
as 6 consecutive Leq(5min)
between 0700-1900 hours on normal weekdays and once every week during course of
works. If construction work
necessary to carry out at other time periods, i.e. restricted time period
(19:00 to 07:00 the next morning and whole day on public holidays) (hereinafter
referred as ¡§the restricted hours¡¨), additional weekly impact monitoring for Leq(5min) measurement shall be
employed during respective restricted hours periods.. Supplementary information for data
auditing, statistical results such as L10 and L90 shall
also be obtained for reference.
Water Quality Monitoring
3.4.3
The water quality monitoring frequency shall
be 3 days per week during course of works.
The interval between two sets of monitoring shall not be less than 36
hours.
Air Quality Monitoring
3.5.1
The 24-hour and 1-hour TSP levels shall be
measured by following the standard high volume sampling method as set out in
the Title 40 of the Code of Federal
Regulations, Chapter 1 (Part 50), Appendix
B. If the ET proposes to
use a direct reading dust meter to measure 1-hour TSP levels, it shall submit
sufficient information to the IEC to approve.
3.5.2
The filter paper of
24-hour TSP measurement shall be determined by HOKLAS accredited laboratory.
3.5.3
All equipment to be used for air quality monitoring
is listed in Table 3-5.
Table 3-5 Air
Quality Monitoring Equipment
Equipment |
Model |
24-Hr TSP |
|
High
Volume Air Sampler |
TISCH High Volume
Air Sampler, HVS Model TE-5170* |
Calibration
Kit |
TISCH Model
TE-5025A* |
1-Hour TSP |
|
Portable Dust Meter |
Sibata LD-3B
Laser Dust monitor Particle Mass Profiler & Counter* |
* Instrument was used in the Reporting
Period and the calibration certificate could be referred in Appendix F.
Wind Data Monitoring Equipment
3.5.4
According to the approved EM&A Manual,
wind data monitoring equipment shall also be provided and set up for logging
wind speed and wind direction near the dust monitoring locations. The equipment installation location
shall be proposed by the ET and agreed with the IEC. For installation and operation of wind
data monitoring equipment, the following points shall be observed:
1)
The wind sensors should be installed 10 m
above ground so that they are clear of obstructions or turbulence caused by
buildings.
2)
The wind data should be captured by a data
logger. The data shall be downloaded for analysis at least once a month.
3)
The wind data monitoring equipment should be
re-calibrated at least once every six months.
4)
Wind direction should be divided into 16
sectors of 22.5 degrees each.
3.5.5
ET has liaised with the landlords of the
successful granted HVS installation premises. However, the owners rejected to provide
premises for wind data monitoring equipment installation.
3.5.6
Under this situation, the ET proposed
alternative methods to obtain representative wind data. Meteorological information as extracted
from ¡§the Hong Kong Observatory Ta Kwu Ling Station¡¨
is alternative method to obtain representative wind data. For Ta Kwu
Ling Station, it is located nearby the Project site. Moreover, this station is located at 15m
above mean sea level while its anemometer is located at 13m above the existing
ground which in compliance with the general setting up requirement. Furthermore, this station also can be to
provide the humidity, rainfall, and air pressure and temperature etc.
meteorological information. In Hong
Kong of a lot development projects, weather information extracted from Hong
Kong Observatory is common alternative method if weather station installation
not allowed.
Noise Monitoring
3.5.7
Sound level meter in compliance with the
International Electrotechnical Commission
Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be
used for carrying out the noise monitoring. The sound level meter shall be checked
using an acoustic calibrator. The
wind speed shall be checked with a portable wind speed meter capable of
measuring the wind speed in m/s.
3.5.8
Noise monitoring equipment to be used for
monitoring is listed in Table 3-6.
Table 3-6 Construction
Noise Monitoring Equipment
Equipment |
Model |
Integrating Sound Level Meter |
B&K Type 2238* or Rion
NL-31* or Rion
NL-52* |
Calibrator |
B&K Type 4231* or Quest QC-20* or Rion NC-74* |
Portable Wind Speed Indicator |
Testo Anemometer |
* Instrument was used in the Reporting
Period and the calibration certificate could be referred in Appendix F.
3.5.9
Sound level meters listed above comply with
the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications, as recommended in TM issued
under the NCO. The acoustic
calibrator and sound level meter to be used in the impact monitoring will be
calibrated yearly.
Water Quality Monitoring
3.5.10
DO and water temperature should be measured
in-situ by a DO/temperature meter. The instrument should be portable and
weatherproof using a DC power source. It should have a membrane electrode with
automatic temperature compensation complete with a cable. The equipment should
be capable of measuring:
•
a DO level
in the range of 0-20 mg/l and 0-200% saturation; and
•
a temperature of between 0 and 45 degree
Celsius.
3.5.11
A portable pH meter capable of measuring a
range between 0.0 and 14.0 should be provided to measure pH under the specified
conditions accordingly to the APHA Standard Methods.
3.5.12
The instrument should be portable and
weatherproof using a DC power source. It should have a photoelectric sensor
capable of measuring turbidity between 0-1000 NTU.
3.5.13
A portable, battery-operated echo sounder or
tape measure will be used for the determination of water depth at each
designated monitoring station as appropriate.
3.5.14
A water sampler e.g. Kahlsico
Water Sampler, which is a transparent PVC cylinder with capacity not less than
2 litres, will be used for water sampling if water depth
over than 0.5m. For sampling
from very shallow water depths e.g. <0.5 m, water sample collection will be
directly from water surface below 100mm use sampling plastic bottle to avoid
inclusion of bottom sediment or humus.
Moreover, Teflon/stainless steel bailer or self-made sampling buckets
maybe used for water sampling. The
equipment used for sampling will be depended the sampling location and depth
situations.
3.5.15
Water samples for laboratory measurement of
SS will be collected in high density polythene bottles, packed in ice (cooled
to 4 ºC without being frozen), and delivered to the laboratory in the same day
as the samples were collected.
3.5.16
Analysis of suspended solids should be
carried out in a HOKLAS or other accredited laboratory. Water samples of about
1L should be collected at the monitoring stations for carrying out the
laboratory suspended solids determination.
The SS determination work should start within 24 hours after collection
of the water samples. The SS analyses should follow the APHA Standard Methods 2540D with Limit of Reporting of 2 mg/L.
3.5.17
Water quality monitoring equipment used in
the impact monitoring is listed in Table 3-7. Suspended solids (SS)
analysis is carried out by a local HOKLAS-accredited laboratory, namely ALS Technichem
(HK) Pty Ltd.
Table 3-7 Water
Quality Monitoring Equipment
Equipment |
Model |
Water
Depth Detector |
Eagle
Sonar or tape measures |
Water Sampler |
A 2-litre transparent PVC cylinder with latex cups at
both ends or teflon/stainless steel bailer or
self-made sampling bucket |
Thermometer & DO meter |
YSI Professional Plus /YSI PRO20 Handheld Dissolved
Oxygen Instrument*/ YSI 550A
Multifunctional Meter/ YSI Professional DSS |
pH meter |
YSI Professional Plus / AZ8685 pH pen-style meter*/ YSI
6820/ 650MDS/ YSI Professional DSS |
Turbidimeter |
Hach 2100Q*/ YSI 6820/
650MDS/ YSI Professional DSS |
Sample Container |
High density polythene bottles (provided by laboratory) |
Storage
Container |
¡¥Willow¡¦
33-liter plastic cool box with Ice pad |
* Instrument was used in the Reporting
Period and the calibration certificate could be referred in Appendix F.
1-hour TSP
Monitoring
3.6.1
The 1-hour TSP monitor was a brand named ¡§Sibata LD-3B Laser Dust monitor Particle Mass Profiler
& Counter¡¨ which is a portable, battery-operated laser photometer. The 1-hour TSP meter provides a real
time 1-hour TSP measurement based on 90o light scattering. The 1-hour TSP monitor consists of the
following:
(a.)
A pump to draw sample aerosol through the
optic chamber where TSP is measured;
(b.)
A sheath air system to isolate the aerosol in
the chamber to keep the optics clean for maximum reliability; and
(c.)
A built-in data logger compatible with
Windows based program to facilitate data collection, analysis and reporting.
3.6.2
The 1-hour TSP meter is used within the valid
period as follow manufacturer¡¦s Operation and Service Manual.
3.6.3
The equipment used for 24-hour TSP
measurement is Tisch Environmental, Inc. Model TE-5170 TSP
high volume air sampling system, which complied with EPA Code of Federal Regulation, Appendix B to Part 50. The High
Volume Air Sampler (HVS) consists of the following:
(a.)
An anodized aluminum shelter;
(b.)
A 8¡¨x10¡¨ stainless steel filter holder;
(c.)
A blower motor assembly;
(d.)
A continuous flow/pressure recorder;
(e.)
A motor speed-voltage control/elapsed time
indicator;
(f.)
A 7-day mechanical timer, and
(g.)
A power supply of 220v/50 Hz
3.6.4
The HVS is operated and calibrated on a
regular basis in accordance with the manufacturer¡¦s instruction using Tisch Calibration Kit Model TE-5025A. Calibration would carry out in two month
interval.
3.6.5
24-hour TSP is collected by the ET on filters
of HVS and quantified by a local HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd (ALS), upon receipt of the
samples. The ET keep all the
sampled 24-hour TSP filters in normal air conditioned room conditions, i.e. 70%
RH (Relative Humidity) and 25oC, for six months prior to disposal.
3.6.6
Noise measurements were taken in terms of the
A-weighted equivalent sound pressure level (Leq)
measured in decibels dB(A). Supplementary statistical results (L10
and L90) were also obtained for reference.
3.6.7
During the monitoring, all noise measurements
would be performed with the meter set to FAST response and on the A-weighted
equivalent continuous sound pressure level (Leq). Leq(30min)
in six consecutive Leq(5min) measurements
will use as the monitoring parameter for the time period between 0700-1900
hours on weekdays; Leq(5min) measurements
would be used as monitoring parameter for other time periods (e.g. during
restricted hours), if necessary.
3.6.8
Prior of noise measurement, the accuracy of
the sound level meter is checked using an acoustic calibrator generating a
known sound pressure level at a known frequency. The checking is performed before and
after the noise measurement.
Water
Quality
3.6.9
Water quality monitoring is conducted at the
designated or alternative locations. The sampling procedures with the in-situ
monitoring are presented as below:
Sampling Procedure
3.6.10
A Digital Global
Positioning System (GPS) is used to identify the designated monitoring stations
prior to water sampling. A
portable, battery-operated echo sounder or tape measurement is used for the
determination of water depth at each station. At each station, water sample would be
collected from 0.1m below water surface or the water surface to prevent the
river bed sediment for stirring.
3.6.11
The sample container will be rinsed with a
portion of the water sample. The
water sample then will be transferred to the high-density polythene bottles as provided by the laboratory,
labeled with a unique sample number and sealed with a screw cap.
3.6.12
Before sampling, general information such as
the date and time of sampling, weather condition as well as the personnel
responsible for the monitoring would be recorded on the field data sheet.
3.6.13
A ¡¥Willow¡¦ 33-liter plastic cool box packed
with ice will be used to preserve the water samples prior to arrival at the
laboratory for chemical determination.
The water temperature of the cool box is maintained at a temperature as
close to 40C as possible without being frozen. Samples collected are delivered to the
laboratory upon collection.
In-situ Measurement
3.6.14
YSI PRO20 Handheld Dissolved Oxygen
Instrument is used for water in-situ
measures, which automates the measurements and data logging of
temperature, dissolved oxygen and dissolved oxygen saturation.
3.6.15
A portable AZ Model 8685 is used for in-situ
pH measurement. The pH meter is
capable of measuring pH in the range of 0 ¡V 14 and readable to 0.1.
3.6.16
A portable Hach
2100Q Turbidimeter is used for in-situ turbidity
measurement. The turbidity meter is capable of measuring turbidity in the range
of 0 ¡V 1000 NTU.
3.6.17
All in-situ measurement equipment are
calibrated by HOKLAS accredited laboratory of three month interval.
Laboratory Analysis
3.6.18
All water samples analyzed Suspended Solids
(SS) will be carried out by a local HOKLAS-accredited testing laboratory (ALS Technichem (HK) Pty Ltd HOKLAS registration no. 66). SS determination using APHA
Standard Methods 2540D as specified in the EM&A Manual will start within
48 hours of water sample receipt.
3.7.1
Calibration of the HVS is performed upon
installation and thereafter at bimonthly intervals in accordance with the
manufacturer¡¦s instruction using the certified standard calibrator (TISCH Model
TE-5025A).
Moreover, the Calibration Kit would be calibrated annually. The calibration data are properly
documented and the records are maintained by ET for future reference.
3.7.2
The 1-hour TSP
meter was calibrated by the supplier prior to purchase. Zero response of the equipment would be
checked before and after each monitoring event. Annually calibration with the High
Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.
3.7.3
The sound level
meter and calibrator are calibrated and certified by a laboratory accredited
under HOKLAS or any other international accreditation scheme at yearly basis.
3.7.4
All water quality monitoring equipment would
be calibrated by HOKLAS accredited laboratory of three month intervals.
3.7.5
The calibration
certificates of all monitoring equipment used for the impact monitoring program
in the Reporting Period and the HOKLAS accredited certificate of laboratory are attached in Appendix F.
3.8.1
The baseline results form the basis for
determining the environmental acceptance criteria for the impact
monitoring. According to the
approved Environmental Monitoring and Audit Manual, the air quality, construction
noise and water quality criteria were set up, namely Action and Limit levels
are listed in Tables 3-8, 3-9 and 3-10.
Table 3-8 Action and
Limit Levels for Air Quality Monitoring
Monitoring
Station |
Action Level (mg /m3) |
Limit Level (mg/m3) |
||
1-hour TSP |
24-hour TSP |
1-hour TSP |
24-hour TSP |
|
AM1b |
265 |
143 |
500 |
260 |
AM2 |
268 |
149 |
||
AM3 |
269 |
145 |
||
AM4b |
267 |
148 |
||
AM5a |
268 |
143 |
||
AM6 |
269 |
148 |
||
AM7b |
275 |
156 |
||
AM8 |
269 |
144 |
||
AM9b |
271 |
151 |
Table 3-9 Action
and Limit Levels for Construction Noise
Monitoring Location |
Action Level |
Limit Level in
dB(A) |
Time Period:
0700-1900 hours on normal weekdays |
||
NM1, NM2a, NM3,
NM4, NM5, NM6, NM7, NM8, NM9, NM10 |
When one
or more documented complaints are received |
75 dB(A)Note 1
& Note 2 |
Note 1: Acceptable Noise Levels
for school should be reduced to 70 dB(A) and65 dB(A)
during examination period.
Note 2: If works are to be
carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the NCA have to be followed.
Table 3-10 Action and
Limit Levels for Water Quality
Parameter |
Performance
criteria |
Monitoring Location |
|||||
WM1 |
WM2A(a) |
WM2B |
WM3x |
WM4 |
|||
DO (mg/L) |
Action Level |
(*)4.23 |
(**)4.00 |
(*)4.74 |
(**)4.00 |
(*)4.14 |
|
Limit Level |
(#)4.19 |
(**)4.00 |
(#)4.60 |
(**)4.00 |
(#)4.08 |
||
Turbidity (NTU) |
Action Level |
51.3 |
24.9 |
11.4 |
13.4 |
35.2 |
|
AND 120% of upstream control station of
the same day |
|||||||
Limit Level |
67.6 |
33.8 |
12.3 |
14.0 |
38.4 |
||
AND 130% of upstream control station of the same day |
|||||||
SS (mg/L) |
Action Level |
54.5 |
14.6 |
11.8 |
12.6 |
39.4 |
|
AND 120% of upstream control station of the
same day |
|||||||
Limit Level |
64.9 |
17.3 |
12.4 |
12.9 |
45.5 |
||
AND 130% of upstream control station of the same day |
|||||||
Remarks: (*) The
Proposed Action Level of Dissolved
Oxygen is adopted to be used 5%-ile of
baseline data (**) The
Proposed Action & Limit Level of Dissolved
Oxygen is used 4mg/L (#) The
Proposed Limit Level of Dissolved
Oxygen is adopted to be used 1%-ile of
baseline data |
|||||||
3.8.2
Should non-compliance of the environmental
quality criteria occurs, remedial actions will be triggered according to the
Event and Action Plan which presented in Appendix G.
3.9.1
All monitoring data will be handled by the ET¡¦s in-house data recording and management system. The monitoring data
recorded in the equipment will be downloaded directly from the equipment at the
end of each monitoring day. The
downloaded monitoring data will input into a computerized database maintained
by the ET. The laboratory results
will be input directly into the computerized database and checked by personnel
other than those who input the data.
3.9.2
For monitoring parameters that require
laboratory analysis, the local laboratory shall follow the QA/QC requirements
as set out under the HOKLAS scheme for the relevant laboratory tests.
4.1.1
In the Reporting Period, construction works under the
project have been commenced in Contracts
2, 3, 4, 6, 7 and
Contract SS C505. Hence, air quality monitoring was performed at all designated
locations.
4.1.2
The air quality monitoring schedule is
presented in Appendix H and the monitoring results are summarized in the
following sub-sections.
4.2.1
In the Reporting Period, a total of 150 events of 1-hour TSP and 45 events 24-hours TSP monitoring were carried
out and the monitoring results are summarized in Tables 4-1 to 4-9. The detailed 24-hour TSP monitoring
data are presented in Appendix I and the relevant
graphical plots are shown in Appendix J.
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM1b
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
3-Aug-17 |
32
|
4-Aug-17 |
9:34 |
39 |
39 |
39 |
9-Aug-17 |
51
|
10-Aug-17 |
9:42 |
41 |
43 |
43 |
15-Aug-17 |
79
|
16-Aug-17 |
9:38 |
41 |
43 |
41 |
21-Aug-17 |
140
|
22-Aug-17 |
9:34 |
108 |
106 |
100 |
26-Aug-17 |
91
|
28-Aug-17 |
9:41 |
47 |
44 |
42 |
Average (Range) |
79 (32 ¡V 140) |
Average (Range) |
54 (39 ¡V 108) |
Table 4-2 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM2
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
3-Aug-17 |
57
|
4-Aug-17 |
9:31 |
42 |
36 |
37 |
9-Aug-17 |
62
|
10-Aug-17 |
9:35 |
40 |
45 |
48 |
15-Aug-17 |
67
|
16-Aug-17 |
9:30 |
44 |
43 |
37 |
21-Aug-17 |
144
|
22-Aug-17 |
9:31 |
104 |
100 |
97 |
26-Aug-17 |
115
|
28-Aug-17 |
9:46 |
45 |
49 |
42 |
Average (Range) |
89 (57 ¡V 144) |
Average (Range) |
54 (36 ¡V 104) |
Table 4-3 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM3
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
3-Aug-17 |
38
|
6-Jul-17 |
9:22 |
37 |
47 |
39 |
9-Aug-17 |
84
|
12-Jul-17 |
9:24 |
36 |
30 |
29 |
15-Aug-17 |
70
|
18-Jul-17 |
9:34 |
33 |
33 |
38 |
21-Aug-17 |
104
|
24-Jul-17 |
9:35 |
66 |
59 |
60 |
26-Aug-17 |
63
|
29-Jul-17 |
13:05 |
63 |
59 |
62 |
Average (Range) |
72 (38 ¡V 104) |
Average (Range) |
46 (29 ¡V 66) |
Table 4-4 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM4b
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
4-Aug-17 |
37
|
1-Aug-17 |
9:40 |
77 |
66 |
58 |
10-Aug-17 |
38
|
7-Aug-17 |
9:46 |
34 |
46 |
41 |
16-Aug-17 |
54
|
12-Aug-17 |
8:11 |
72 |
68 |
71 |
22-Aug-17 |
76
|
18-Aug-17 |
9:16 |
73 |
73 |
69 |
28-Aug-17 |
94
|
24-Aug-17 |
9:16 |
82 |
82 |
76 |
- - |
- - |
30-Aug-17 |
9:32 |
112 |
108 |
105 |
Average (Range) |
60 (37 ¡V 94) |
Average (Range) |
73 (34 ¡V 112) |
Table 4-5 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM5a
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
4-Aug-17 |
28
|
1-Aug-17 |
9:37 |
74 |
90 |
68 |
10-Aug-17 |
33
|
7-Aug-17 |
9:44 |
41 |
42 |
38 |
16-Aug-17 |
54
|
12-Aug-17 |
8:13 |
76 |
72 |
75 |
22-Aug-17 |
137
|
18-Aug-17 |
9:24 |
69 |
69 |
74 |
28-Aug-17 |
18
|
24-Aug-17 |
9:25 |
83 |
84 |
78 |
- - |
- - |
30-Aug-17 |
9:34 |
104 |
106 |
105 |
Average (Range) |
54 (18 ¡V 137) |
Average (Range) |
75 (38 ¡V 106) |
|
|
Table 4-6 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM6
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
4-Aug-17 |
67
|
1-Aug-17 |
9:31 |
72 |
66 |
66 |
10-Aug-17 |
79
|
7-Aug-17 |
9:38 |
35 |
37 |
35 |
16-Aug-17 |
83
|
12-Aug-17 |
8:21 |
67 |
64 |
68 |
22-Aug-17 |
143
|
18-Aug-17 |
9:34 |
68 |
70 |
71 |
28-Aug-17 |
19
|
24-Aug-17 |
9:34 |
82 |
83 |
86 |
- - |
- - |
30-Aug-17 |
9:27 |
104 |
107 |
107 |
Average (Range) |
78 (19 ¡V 143) |
Average (Range) |
72 (35 ¡V 107) |
Table 4-7 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM7b
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
4-Aug-17 |
55
|
1-Aug-17 |
9:26 |
70 |
78 |
69 |
10-Aug-17 |
88
|
7-Aug-17 |
9:46 |
40 |
41 |
44 |
16-Aug-17 |
95
|
12-Aug-17 |
9:13 |
52 |
46 |
54 |
22-Aug-17 |
67
|
18-Aug-17 |
9:50 |
72 |
70 |
69 |
28-Aug-17 |
19
|
24-Aug-17 |
9:43 |
85 |
86 |
92 |
- - |
- - |
30-Aug-17 |
9:20 |
65 |
54 |
53 |
Average (Range) |
65 (19 ¡V 95) |
Average (Range) |
63 (40 ¡V 92) |
Table 4-8 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM8
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
4-Aug-17 |
32
|
1-Aug-17 |
9:17 |
74 |
72 |
73 |
10-Aug-17 |
44
|
7-Aug-17 |
10:02 |
41 |
44 |
36 |
16-Aug-17 |
43
|
12-Aug-17 |
13:11 |
60 |
58 |
63 |
22-Aug-17 |
61
|
18-Aug-17 |
12:56 |
73 |
78 |
76 |
28-Aug-17 |
90
|
24-Aug-17 |
10:05 |
84 |
82 |
77 |
- - |
- - |
30-Aug-17 |
13:01 |
64 |
66 |
63 |
Average (Range) |
54 (32 ¡V 90) |
Average (Range) |
66 (36 ¡V 84) |
Table 4-9 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM9b
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st
reading |
2nd
reading |
3rd
reading |
||
3-Aug-17 |
26
|
4-Aug-17 |
9:18 |
62 |
60 |
67 |
9-Aug-17 |
13
|
10-Aug-17 |
9:39 |
39 |
44 |
37 |
15-Aug-17 |
19
|
16-Aug-17 |
9:47 |
43 |
38 |
38 |
21-Aug-17 |
56
|
22-Aug-17 |
9:40 |
111 |
108 |
110 |
26-Aug-17 |
39
|
28-Aug-17 |
13:06 |
49 |
51 |
47 |
Average (Range) |
31 (13 ¡V 56) |
Average (Range) |
60 (37 ¡V 111) |
4.2.1
As shown in Tables 4-1 to 4-9, all
the 1-hour and 24-hour TSP
monitoring results were below the Action/Limit Levels. No Notification of Exceedance (NOE) was
issued in this Reporting Period.
4.2.2
For the Action
Level exceedance of 24-hour TSP monitoring recorded at AM5a on 29 July
2017. The investigation for the
cause of exceedance was completed and the investigation result revealed that
the exceedance was not related to the works under the Project. The completed investigation report for the exceedance is attached in Appendix N.
4.2.3
The meteorological data during the impact
monitoring days are summarized in Appendix K.
5.1.1
In the Reporting Period, construction works under the
project have been commenced in Contracts
2, 3, 4, 6, 7 and
Contract SS C505 and noise monitoring was performed at all designated locations.
5.1.2
The noise monitoring schedule is presented in
Appendix
H and the monitoring results are summarized in the following
sub-sections.
5.2.1
In the Reporting Period, a total of 50 events noise measurements were carried out at the
designated locations. The sound
level meter was set in 1m from the exterior of the building façade including
noise monitoring locations NM1, NM3, NM4, NM5, NM6, NM7, NM8 and NM9. Therefore, no façade correction (+3
dB(A)) is added according to acoustical principles and EPD guidelines. However, free-field status were
performed at NM2a and NM10 and façade correction (+3 dB(A)) has added according
to the requirement in this month.
The noise monitoring results at the designated locations are summarized
in Tables
5-1 and 5-2. The detailed
noise monitoring data are presented in Appendix I and the relevant
graphical plots are shown in Appendix J.
Table 5-1 Summary of Construction Noise Monitoring Results
Construction Noise Level (Leq30min), dB(A) |
|||||
Date |
NM1 |
NM2a(*) |
NM8 |
NM9 |
NM10(*) |
4-Aug-17 |
55
|
69 |
61 |
62 |
65 |
10-Aug-17 |
57
|
73 |
58 |
61 |
65 |
16-Aug-17 |
61
|
75 |
59 |
60 |
66 |
22-Aug-17 |
56
|
68 |
58 |
60 |
66 |
28-Aug-17 |
57
|
69 |
58 |
62 |
66 |
Limit Level |
75 dB(A) |
Remarks
(*) façade correction
(+3 dB(A) is added according to acoustical principles and EPD guidelines
Table 5-2 Summary of Construction Noise Monitoring Results
Construction Noise Level (Leq30min), dB(A) |
|
|||||||
Date |
NM3 |
NM4 |
NM5 |
NM6 |
NM7 |
|
||
1-Aug-17 |
57
|
67
|
51
|
58
|
64
|
|
||
7-Aug-17 |
60
|
61
|
52
|
59
|
61
|
|
||
18-Aug-17 |
60
|
61
|
55
|
63
|
63 |
|
||
24-Aug-17 |
61
|
62
|
61
|
56
|
64
|
|
||
30-Aug-17 |
59
|
62
|
63
|
64
|
64
|
|
||
Limit Level |
75 dB(A) |
|
|
54 |
5.2.2
As shown in Tables
5-1 and 5-2, the noise level measured at all designated monitoring
locations were below 75dB(A). Moreover, no valid noise complaint (which triggered Action Level
exceedance) was recorded in the Reporting Period.
6.1.1
In the Reporting Period, construction works under the
project has been commenced in Contracts
2, 3, 4, 6, 7 and
Contract SS C505 and water quality monitoring was performed at all designated
locations. The water quality
monitoring schedule is presented in Appendix H. The monitoring results are summarized in
the following sub-sections.
6.2.1
In the Reporting Period, a total of thirteen (13) sampling days was scheduled to carry out for all designated locations
with their control stations. Since
exceedances were recorded at WM1, WM2A(a), WM3x and WM4, according
to ¡§Event and Action Plan¡¨
stipulation, 1, 5, 2 and 4 additional
water quality monitoring day was conducted for WM2A(a), WM3x and
WM4 respectively and theirs control stations in the reporting period.
6.2.2
The key monitoring parameters including Dissolved Oxygen, Turbidity and Suspended
Solids are summarized in Tables 6-1 to 6-5. Breaches of water quality monitoring
criteria are shown in Table 6-6. Detailed monitoring database including
in-situ measurements and laboratory analysis data are shown in Appendix
I and the relevant graphical plot are shown in Appendix J.
Table 6-1 Water
Quality Monitoring Results Associated of Contracts 2 and 3
Date |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
||||||
WM4 |
WM4-CA |
WM4-CB |
WM4 |
WM4-CA |
WM4-CB |
WM4 |
WM4-CA |
WM4-CB |
|
2-Aug-17 |
6.5 |
7.5 |
5.9 |
30.8 |
5.4 |
18.6 |
22.0 |
2.0 |
19.0 |
4-Aug-17 |
6.8 |
7.1 |
5.1 |
34.8 |
5.0 |
15.3 |
26.5 |
5.0 |
17.0 |
8-Aug-17 |
6.7 |
7.2 |
6.1 |
21.5 |
5.8 |
18.2 |
17.0 |
4.0 |
17.0 |
10-Aug-17 |
6.4 |
7.2 |
5.4 |
471.5 |
9.8 |
26.6 |
289.5 |
8.0 |
19.5 |
11-Aug-17# |
# |
# |
# |
367.5 |
6.9 |
16.5 |
136.0 |
6.0 |
24.0 |
12-Aug-17 |
6.4 |
7.2 |
6.1 |
104.5 |
6.8 |
14.1 |
76.5 |
2.5 |
11.0 |
14-Aug-17 |
6.4 |
6.9 |
5.8 |
22.4 |
4.9 |
15.6 |
18.0 |
6.0 |
11.0 |
15-Aug-17# |
# |
# |
# |
15.0 |
4.6 |
8.3 |
18.0 |
3.0 |
13.0 |
16-Aug-17 |
6.6 |
7.0 |
5.9 |
139.5 |
5.5 |
29.7 |
99.5 |
6.0 |
72.0 |
17-Aug-17# |
# |
# |
# |
22.3 |
3.8 |
24.8 |
24.0 |
7.0 |
67.0 |
18-Aug-17 |
4.2 |
4.8 |
5.2 |
29.2 |
9.3 |
17.5 |
26.0 |
6.0 |
15.0 |
22-Aug-17 |
6.6 |
7.0 |
6.4 |
22.1 |
4.6 |
15.9 |
20.0 |
4.0 |
17.0 |
24-Aug-17 |
5.9 |
6.1 |
4.8 |
79.6 |
22.1 |
30.7 |
38.5 |
5.0 |
16.0 |
25-Aug-17# |
# |
# |
# |
17.0 |
5.2 |
14.8 |
12.0 |
2.0 |
13.0 |
26-Aug-17 |
5.9 |
6.1 |
4.4 |
15.7 |
6.9 |
12.2 |
12.5 |
<2 |
11.0 |
28-Aug-17 |
7.9 |
8.0 |
7.6 |
57.0 |
49.8 |
49.7 |
43.5 |
21.5 |
42.5 |
30-Aug-17 |
6.5 |
6.6 |
5.3 |
20.7 |
4.6 |
6.6 |
18.5 |
6.0 |
9.5 |
Remarks: |
bold with underline indicated Limit Level exceedance |
# Additional water quality monitoring at the exceeded
location(s) due to two consecutive monitoring days indicated Limit Level exceedance. |
Table 6-2 Water
Quality Monitoring Results Associated of Contracts 6 and SS C505
Date |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
|||
WM1 |
WM1-C |
WM1 |
WM1-C |
WM1 |
WM1-C |
|
2-Aug-17 |
7.4 |
7.9 |
95.7 |
51.2 |
87.5 |
61.0 |
3-Aug-17# |
# |
# |
95.4 |
96.7 |
59.0 |
69.0 |
4-Aug-17 |
7.4 |
8.1 |
27.6 |
13.7 |
28.5 |
9.0 |
8-Aug-17 |
7.5 |
8.1 |
13.1 |
14.4 |
6.0 |
5.0 |
10-Aug-17 |
7.4 |
7.9 |
17.3 |
15.1 |
14.5 |
5.5 |
12-Aug-17 |
7.4 |
8.8 |
40.0 |
14.1 |
43.0 |
3.0 |
14-Aug-17 |
7.2 |
7.5 |
25.0 |
15.8 |
15.5 |
3.5 |
16-Aug-17 |
7.5 |
8.1 |
20.1 |
12.2 |
15.0 |
5.0 |
18-Aug-17 |
4.8 |
4.4 |
16.5 |
14.9 |
11.5 |
8.0 |
22-Aug-17 |
6.2 |
5.8 |
21.3 |
13.1 |
41.0 |
14.0 |
24-Aug-17 |
6.3 |
5.7 |
48.8 |
20.6 |
50.0 |
15.5 |
26-Aug-17 |
6.4 |
7.0 |
23.3 |
18.8 |
16.0 |
2.5 |
28-Aug-17 |
7.2 |
7.6 |
746.5 |
725.5 |
506.0 |
613.5 |
30-Aug-17 |
7.3 |
7.8 |
16.4 |
11.4 |
20.0 |
10.0 |
Remarks: |
bold with underline indicated Limit Level exceedance |
# Additional water quality monitoring at the exceeded
location(s) due to two consecutive monitoring days indicated Limit Level exceedance. |
Table 6-3 Water
Quality Monitoring Results Associated only Contract 6
Date |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
|||||||||
WM2A(a) |
WM2A- Cx |
WM2B |
WM2B- C |
WM2A(a) |
WM2A- Cx |
WM2B |
WM2B- C |
WM2A(a) |
WM2A- Cx |
WM2B |
WM2B- C |
|
2-Aug-17 |
6.6 |
6.9 |
* |
* |
905.5 |
706.5 |
* |
* |
621.5 |
417.0 |
* |
* |
3-Aug-17# |
# |
# |
* |
* |
118.5 |
25.2 |
* |
* |
82.0 |
9.0 |
* |
* |
4-Aug-17 |
6.6 |
7.3 |
* |
* |
14.8 |
5.6 |
* |
* |
13.0 |
5.0 |
* |
* |
5-Aug-17# |
# |
# |
* |
* |
15.0 |
6.6 |
* |
* |
9.0 |
<2 |
* |
* |
8-Aug-17 |
6.7 |
7.4 |
* |
* |
12.8 |
5.1 |
* |
* |
7.0 |
<2 |
* |
* |
10-Aug-17 |
6.5 |
7.3 |
* |
* |
11.5 |
5.7 |
* |
* |
6.5 |
<2 |
* |
* |
12-Aug-17 |
6.6 |
7.2 |
* |
* |
15.9 |
12.4 |
* |
* |
<2 |
<2 |
* |
* |
14-Aug-17 |
6.5 |
7.1 |
* |
* |
8.6 |
6.7 |
* |
* |
7.0 |
3.5 |
* |
* |
16-Aug-17 |
6.7 |
7.3 |
* |
* |
8.9 |
5.3 |
* |
* |
6.0 |
3.0 |
* |
* |
18-Aug-17 |
4.5 |
4.8 |
* |
* |
8.0 |
12.5 |
* |
* |
7.0 |
11.5 |
* |
* |
22-Aug-17 |
5.8 |
5.7 |
* |
* |
8.1 |
7.5 |
* |
* |
11.0 |
8.5 |
* |
* |
24-Aug-17 |
5.8 |
5.4 |
* |
* |
75.5 |
11.3 |
* |
* |
51.5 |
3.0 |
* |
* |
25-Aug-17# |
# |
# |
* |
* |
24.5 |
4.0 |
* |
* |
12.0 |
3.0 |
* |
* |
26-Aug-17 |
5.2 |
4.9 |
* |
* |
11.6 |
9.4 |
* |
* |
<2 |
<2 |
* |
* |
28-Aug-17 |
7.6 |
8.0 |
* |
* |
216.5 |
134.5 |
* |
* |
259.5 |
22.0 |
* |
* |
29-Aug-17# |
# |
# |
* |
* |
86.9 |
19.2 |
* |
* |
77.0 |
30.0 |
* |
* |
30-Aug-17 |
7.2 |
5.9 |
* |
* |
45.4 |
6.2 |
* |
* |
43.5 |
7.0 |
* |
* |
31-Aug-17# |
# |
# |
* |
* |
10.0 |
4.7 |
* |
* |
11.0 |
7.0 |
* |
* |
Remarks: |
bold with underline indicated Limit Level exceedance |
|
# Additional water quality monitoring at the exceeded
location(s) due to two consecutive monitoring days indicated Limit Level exceedance. * water
sampling was unable to carry out at WM2B and WM2B-C due to shallow water
(water depth under 150mm) |
||
|
Table 6-4 Water
Quality Monitoring Results Associated Contracts 2 and 6
Date |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
|||
WM3x |
WM3-C |
WM3x |
WM3-C |
WM3x |
WM3-C |
|
2-Aug-17 |
6.1 |
6.6 |
114.0 |
72.8 |
109.5 |
97.5 |
3-Aug-17 |
# |
# |
12.9 |
12.1 |
6.0 |
45.0 |
4-Aug-17 |
6.7 |
6.8 |
13.1 |
4.1 |
12.0 |
8.5 |
8-Aug-17 |
6.5 |
6.8 |
7.3 |
13.7 |
<2 |
24.5 |
10-Aug-17 |
6.5 |
6.8 |
11.4 |
25.4 |
13.0 |
50.0 |
12-Aug-17 |
6.4 |
6.7 |
6.9 |
14.7 |
<2 |
14.5 |
14-Aug-17 |
6.6 |
6.7 |
12.3 |
26.2 |
8.0 |
40.5 |
16-Aug-17 |
7.1 |
6.9 |
7.2 |
12.6 |
3.0 |
24.0 |
18-Aug-17 |
4.6 |
5.0 |
10.0 |
6.1 |
8.0 |
10.5 |
22-Aug-17 |
6.6 |
6.6 |
6.5 |
23.6 |
19.5 |
40.5 |
24-Aug-17 |
5.9 |
5.8 |
81.3 |
21.0 |
95.0 |
47.0 |
25-Aug-17 |
# |
# |
10.4 |
7.7 |
10.0 |
14.0 |
26-Aug-17 |
6.7 |
6.0 |
10.6 |
10.3 |
<2 |
33.5 |
28-Aug-17 |
7.4 |
7.4 |
91.8 |
175.5 |
38.0 |
117.0 |
30-Aug-17 |
7.3 |
6.8 |
15.6 |
14.1 |
19.5 |
19.0 |
Remarks: |
bold with underline indicated Limit Level exceedance |
# Additional water quality monitoring at the exceeded
location(s) due to two consecutive monitoring days indicated Limit Level exceedance. |
Table 6-5 Action
and Limit (A/L) Levels Exceedance Recorded
Location |
Dissolved Oxygen |
Turbidity |
Suspended Solids |
Total Exceedance |
Project Related
exceedance |
|||||
AL |
LL |
AL |
LL |
AL |
LL |
AL |
LL |
AL |
LL |
|
WM1 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
2 |
0 |
0 |
WM2A(a) |
0 |
0 |
0 |
6 |
0 |
6 |
0 |
12 |
0 |
0 |
WM2B |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
WM3x |
0 |
0 |
0 |
2 |
0 |
1 |
0 |
3 |
0 |
0 |
WM4 |
0 |
0 |
0 |
5 |
0 |
4 |
0 |
9 |
0 |
0 |
No of Exceedance |
0 |
0 |
0 |
14 |
0 |
12 |
0 |
26 |
0 |
0 |
6.2.3
In this Reporting Period, a total of twenty-six (26) Limit Level (LL) exceedances, namely fourteen (14) LL exceedance of turbidity and twelve (12) LL exceedances of Suspended
Solids were recorded for the Project and they are summarized in Table 6-5. The investigation for the cause of
exceedances at WM2A(a) 24, 28, 29 and 30 Aug 2017 was
underway. According to the
investigation result, all other exceedances were concluded as non-project
related.
6.2.4
NOE was issued to relevant parties upon
confirmation of the monitoring result.
The investigation results and summary of exceedances are summarized in Table
6-6. The details of the
completed investigation reports for the exceedances are attached in Appendix
N.
Table 6-6 Summary
of Water Quality Exceedance in the Reporting Period
Date of Exceedance |
Location |
Exceeded Parameter |
Cause of Water
Quality Exceedance In Brief |
2 Aug 2017 |
WM1 |
NTU & SS |
Muddy water was observed
throughout the river course including WM1 and WM1-C and the water sampling
was conducted after rain. Site inspection carried out on 3 August, it was observed
that no construction activities were carried out adjacent to the river course
and no adverse water quality impact was observed. In our investigation, it is considered
that the exceedances were resulted by the impact of rain and not due to the works under the Contract. |
2 and 3 Aug 2017 |
WM2A(a) |
NTU & SS |
According to the weather information from HKO, it rained on 2 and 3 August 2017 and water quality throughout the river course was highly affected
by the stirred up sediment and muddy runoff from the surrounding environment. On 3 August 2017, it was observed that the nylon dam was deflated and muddy water
trapped in the nylon dam was flowing to downstream before the water sampling. In
our investigation, the implementation of water mitigation measures on site
was in order and no adverse water quality impact was observed. It is considered that the exceedances on 2 and 3 August 2017 was related to impact of rainstorm and not caused
by the works under Contract 6. |
2 Aug 2017 |
WM3x |
NTU & SS |
Turbid water was observed throughout the channel
including WM3x and WM3-C and the water quality in the exiting channel was affected by rain. Site
inspection carried out on 3 and 4 August 2017, it was observed that no construction
activities were carried out adjacent to the river course and no adverse water
quality impact was observed. In our investigation, it is considered
that the exceedances were resulted by the impact of rain and not due to the works under the Contracts 3 and 6. |
10, 11 and 12 Aug 2017 |
WM4 |
NTU & SS |
During site inspection,
it was observed that unknown source of muddy
water attributed to their site area of Contract 3 via an underground pipe which
connected from Kiu Tau Road (outside C3) to box culvert BC02 (under Contract
3). The muddy water was finally
entered Ma Wat River and got detected at WM4. In our investigation, the general
condition of the site area under Contracts 2 and 3 were in order and no adverse
water quality impact was identified.
It was considered that the exceedances were likely caused by the
unknown source of muddy water attributed outside the site boundary and not
related to the works under the Project. |
24 Aug 2017 |
WM3x |
NTU & SS |
According to weather record
from the Observatory, it was heavy rainstorm on 23 August 2017 and the water quality in the river course was deteriorated by rain and stirred up
sediment.
Site
inspection carried out on 24 and 25 August 2017, it was observed that no construction
activities were carried out adjacent to the river course and no adverse water
quality impact was observed. In our investigation, it is considered
that the exceedances were resulted by the impact of rain and not due to the works under the Contracts 3 and 6. |
16 and 24 Aug 2017 |
WM4 |
NTU & SS |
During site inspection,
it was observed that unknown source of muddy
water attributed to their site area of Contract 3 via an underground pipe which
connected from Kiu Tau Road (outside C3) to box culvert BC02 (under Contract
3). The muddy water was finally
entered Ma Wat River and got detected at WM4. In our investigation, the general
condition of the site area under Contracts 2 and 3 were in order and no adverse
water quality impact was identified.
It was considered that the exceedances were likely caused by the
unknown source of muddy water attributed outside the site boundary and not
related to the works under the Project. |
24, 28, 29 and 30 Aug 2017 |
WM2A(a) |
NTU & SS |
To be updated
in next reporting period. |
7.1.1
Ecology monitoring for woodland
compensation was shall be conducted at bi-monthly interval. The last ecological monitoring report (May
- June 2017) was submitted to EPD on 14 July 2017. In the Reporting Period, ecological monitoring
for the period of July to August 2017 was carried out on 7 and 11 August
2017. The ecological monitoring report
(July to August 2017) will be submitted standalone.
8.1.1
Waste management was carried out in
accordance with the Waste Management Plan (WMP) for each contract.
8.2.1
All types of waste arising from the
construction work are classified into the following:
l Construction
& Demolition (C&D) Material;
l Chemical
Waste;
l General
Refuse; and
l Excavated
Soil.
8.2.2
The quantities of waste for disposal in this
Reporting Period are summarized in Tables 8-1 and 8-2 and the Monthly
Summary Waste Flow Table is shown in Appendix L. Whenever possible, materials were reused
on-site as far as practicable.
Table 8-1 Summary
of Quantities of Inert C&D Materials for the Project
Type of Waste |
Contract 2 |
Contract 3 |
Contract 4 |
Contract 6 |
Contract 7 |
Contract SS C505 |
Total Qty. |
||||||
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
||
C&D Materials (Inert) (in '000m3) |
62.4716 |
-- |
1.297 |
-- |
0 |
-- |
1.656 |
-- |
0 |
-- |
6.341 |
-- |
71.7656 |
Reused in this Contract (Inert) (in '000 m3) |
0.3805 |
-- |
0.120 |
-- |
0 |
-- |
0.432 |
-- |
0 |
-- |
2.532 |
-- |
3.4645 |
Reused in other Contracts/ Projects (Inert) (in '000 m3) |
0.8032 |
C6/ NENT# &
other projects approved by the ER |
0 |
-- |
0 |
-- |
0 |
-- |
0 |
-- |
0 |
-- |
0.8032 |
Disposal as Public Fill (Inert) (in '000 m3) |
61.2879 |
Tuen Mun 38 |
1.059 |
Tuen Mun 38 |
0 |
-- |
1.224 |
Tuen Mun 38 |
0 |
Tuen Mun 38 |
3.809 |
TKO 137 |
67.3799 |
Remark #:
The C&D materials were delivered to NENT for reuse by laying cover of the
landfilling area.
Table 8-2 Summary
of Quantities of C&D Wastes for the Project
Type of Waste |
Contract 2 |
Contract 3 |
Contract 4 |
Contract 6 |
Contract 7 |
Contract SS C505 |
Total Quantity |
||||||
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
Qty. |
Disposal location |
||
Recycled Metal (¡¥000kg) # |
318.6 |
Licensed collector |
0 |
- |
0 |
-- |
0 |
-- |
2.5 |
Licensed collector |
239.72 |
Licensed collector |
560.82 |
Recycled
Paper / Cardboard Packing (¡¥000kg) # |
0.350 |
Licensed collector |
0 |
- |
0 |
- |
0 |
- |
0.04 |
Licensed collector |
0.70 |
Licensed collector |
1.09 |
Recycled Plastic (¡¥000kg) # |
2.410 |
Licensed collector |
0 |
- |
0 |
-- |
0 |
-- |
0.001 |
Licensed collector |
0 |
Licensed collector |
2.411 |
Chemical Wastes (¡¥000kg) # |
1.6840 |
Licensed collector |
0 |
- |
0 |
-- |
0 |
-- |
0 |
-- |
0 |
-- |
1.684 |
General Refuses (¡¥000m3) |
0.1482 |
NENT |
0.130 |
NENT |
0 |
-- |
0.510 |
NENT |
0.01 |
NENT |
1.554 |
NENT |
2.3522 |
Remark #: Unit of recycled metal, recycled paper/ cardboard packing,
recycled plastic and chemical waste for Contract 3 was in (¡¥000m3).
9.1.1
According to the approved EM&A Manual,
the environmental site inspection shall be formulation by ET Leader. Weekly environmental site inspections
should carry out to confirm the environmental performance.
Contract 2
9.2.1
In the Reporting Period, joint site
inspection for Contract 2 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on
4, 11, 18 and 25 August 2017.
No non-compliance was noted.
9.2.2
The findings / deficiencies of Contract
2 that observed during the weekly site inspection are listed in Table
9-1.
Table 9-1 Site
Observations for Contract 2
Date |
Findings / Deficiencies |
Follow-Up Status |
04 August 2017 |
No adverse environmental issue was observed. |
NA |
11 August 2017 |
South Portal:
Earth bund should be provided to divert the surface run-off to the
de-silting facilities and prevent the contaminated surface run-off overflow
into the discharge outlet.
Housekeeping should be improved. General refuse and stagnant water
cumulated on site was observed.
Sand bags should be provided to prevent muddy site run-off inside the
manhole overflow into the public drainage. |
Earth bund has been erected to avoid the treated water being
contaminated with surface runoff.
Housekeeping was improved. General refuse was removed.
Not required for reminder. |
18 August 2017 |
Mid-Vent:
Stagnant water cumulated on site after rain-storm should be removed to
prevent mosquito breeding. North Portal:
Sediment and mud cumulated inside the storm water buffer tank was
observed. Proper maintenance for the MS Plant should be provided.
Mud and sediment cumulated between the MS Plant and site hoarding area
should be clean to prevent mud and sediment washing out to public area during
rainstorm.
Cleaning process at Loi Tung River and Ng Tung River was inspected during
the site inspection. |
Stagnant water was removed.
On 1 September
2017, the Contractor deployed the crawler crane to remove the mud which cumulated inside the
storm water buffer tank.
Not required for reminder.
Not required for reminder. |
25 August 2017 |
Storm water buffer tank full of sediment was
observed. Sediemnt cumualted
inside should be cleared to
maintain the MS Plant functional.
Sediment cumulated inside the store basin should be cleaned. |
The
Contractor deployed the crawler crane to remove the mud which cumulated inside
the storm water buffer tank on 1 September 2017.
Not required for reminder. |
Contract 3
9.2.3
In the Reporting Period, joint site
inspection for Contract 3 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on 3, 10, 16, 24 and
31 August 2017. No non-compliance was noted.
9.2.4
The findings / deficiencies of Contract
3 that observed during the weekly site inspection are listed in Table
9-2.
Table 9-2 Site
Observations for Contract 3
Date |
Findings / Deficiencies |
Follow-Up Status |
03 August 2017 |
It was reminded that all the stockpiles should be covered entirely after
the end of workday. |
NA |
10 August 2017 |
Oil stain was observed on the bridge. The contractor was advised to
clean it and dispose as chemical waste.
Air compressor without noise emission label was observed. The contractor
was advised to provide noise emission label as soon as possible.
Muddy water was observed discharging into the river. The contractor was
advised to provide mitigation measure to aviod muddy water into the river. |
Oil stain was cleaned on site.
Noise emission label for the Air Compressor was provided.
No muddy water discharging into river was observed. |
16 August 2017 |
Contaminated runoff was observed at the river near Bridge D. The
Contractor should ensure the measures to prevent site runoff entering the
river were properly implemented. |
Sand bag bund is provided to prevent the site runoff entering the river.
Also, no surface runoff was observed during the site inspection. |
24 August 2017 |
A stockpile of cement bags was observed at Location AD1, the Contractor
should be cover the cement bags to avoid dust emission.
Free standing of a chemical container was found at Location AC9, the
Contractor should provide a drip tray for the chemical container. |
Stockpile of cement bags was removed from site area. Last observation
closed.
Chemical container was removed from site area. Last observation closed. |
31 August 2017 |
No adverse environmental issue was
observed. |
NA |
Contract 4
9.2.5
In the Reporting Period, joint site
inspection for Contract 4 to evaluate
the site environmental performance has been carried out by the RE, ET and the
Contractor on 4, 11, 18 and 22 August 2017 in which IEC joined the site inspection on 22
August 2017. No non-compliance was noted.
9.2.6
The findings / deficiencies of Contract
4 that
observed during the weekly site inspection are listed in Table 9-3.
Table 9-3 Site
Observations for Contract 4
Date |
Findings / Deficiencies |
Follow-Up Status |
4 August 2017 |
No adverse environmental issue was
observed. |
NA |
11 August 2017 |
No adverse environmental issue was
observed. |
NA |
18 August 2017 |
No adverse environmental issue was
observed. |
NA |
22 August 2017 |
No adverse environmental issue was
observed. |
NA |
Contract 6
9.2.7
In the Reporting Period, joint site
inspection for Contract 6 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24 and
30 August 2017. No non-compliance was noted.
9.2.8
The findings / deficiencies of Contract
6 that observed during the weekly site inspection are listed in Table
9-4.
Table 9-4 Site
Observations for Contract 6
Date |
Findings / Deficiencies |
Follow-Up Status |
3 August 2017 |
No adverse environmental issue was observed. |
NA |
10 August 2017 |
The contractor was reminded to cover overnight stockpiles with tarpaulin
sheets.
The contractor was reminded to replace broken NRMM label with new one
for excavator. |
NA
NA |
17 August 2017 |
Muddy trial was observed at public access road at Chuk Yuen Road. The
Contractor should ensure all the vehicles are properly washed before leaving
the site.
The Contractor was reminded to provide water spray on haul road
regularly. |
The cleanliness of public road is well maintained.Wheels of vehicle are
washed before leaving the site.
NA |
24 August 2017 |
The Contractor was reminded to maintain the mitigation measures for
prevention of surface run-off, such as the slope coverage and bundings. |
NA |
30 August 2017 |
The Contractor was reminded to provide wheel washing facilities with
proper signage at the site exit to ensure all vehicles were washed before
leaving the site. (Sha Tau Kok Road AP001). |
NA |
Contract SS C505
9.2.9
In the Reporting Period, joint site
inspection for Contract SS C505 to evaluate the site environmental performance
has been carried out by the RE, ET and the Contractor on 2, 9, 16, 25 and
30 August 2017 in which IEC joined the
site inspection on 25 August 2017. No non-compliance was noted.
9.2.10
The findings / deficiencies of Contract
SS C505 that observed during the weekly site inspection are listed in Table
9-5.
Table 9-5 Site
Observations for Contract SS C505
Date |
Findings / Deficiencies |
Follow-Up Status |
2 August 2017 |
The contractor was reminded to clean stagnant water within site area
after raining. |
Not required for reminder. |
9 August 2017 |
Air compressor was observed without NRMM label a third floor of PTB. The
contractor was advised to provide NRMM Label for air compressor within site area. |
NRMM label was provided for the air compressor. Last observation closed. |
16 August 2017 |
Oil drum was observed without drip tray at the ground near site office.
The contractor was advised to place oil drum inside drip tray to avoid oil
leakage. |
Drip tray was provided for oil drum next to site office. Last
observation closed. |
25 August 2017 |
Accumulation of stagnant water was observed inside drip tray on the
ground level next to PTB. The contractor was advised to clear the stagnant
water and dispose as chemical waste.
The contractor was reminded to
clear stagnant water within site area after typhoon No.10.
The contractor was reminded to
dispose of construction waste regularly. |
Stagnant water inside drip tray was removed. Last observation closed.
Not required for reminder.
Not required for reminder. |
30 August 2017 |
Chemical containers were observed without drip tray near building 4. The
contractor was advised to place chemical containers inside drip tray.
Stagnant water was observed inside drip tray near building 4. The
contractor was advised to clear stagnant water and dispose of as chemical
waste. |
Drip tray was provided for chemical containers. Last observation closed. Stagnant water inside drip tray was removed. Last observation closed. |
|
Contract 7
9.2.11
In the Reporting Period, joint site
inspection for Contract 7 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on 4, 11, 15 and 25
August 2017. No non-compliance was noted.
9.2.12
The findings / deficiencies of Contract
7 that observed during the weekly site inspection are listed in Table
9-6.
Table 9-6 Site
Observations for Contract 7
Date |
Findings / Deficiencies |
Follow-Up Status |
4 August 2017 |
Drip tray should be provided for all chemical storage on site. Stagnant water cumulated on site after rainstorm should be removed to
prevent mosquito breeding. |
Chemical containers
storage without drip tray were removed. Not required for
reminder. |
11 August 2017 |
Stagnant water cumulated inside the idled sedimentation tank was
observed. Stagnant water should be removed to prevent mosquito breeding. |
Stagnant water inside
idled sedimentation tanks was cleared. Last observation closed. |
15 August 2017 |
Open stockpiles was observed without covering at work area. The
contractor was advised to cover stockpiles with tarpaulin sheet to avoid dust
emission. |
Stockpile was covered
properly to avoid dust emission. |
25 August 2017 |
Stagnant water cumulated inside the drip tray should be cleared. C&D waste cumulated on site should be cleared more frequency, |
Stagnant water
cumulated inside the drip tray was cleared. Not required for
reminder. |
9.2.13
General housekeeping such as daily site
tidiness and cleanliness should be
maintained for all Contracts. Furthermore, the Contractors were
reminded to implement Waste Management Plan of the Project.
10.1.1
In
the Reporting Period, no summons and prosecution under the EM&A Programme
was lodged for all Contracts.
However, one (1) documented environmental complaint was received by
EPD regarding water quality issue for Contract 2. The investigation details for
the complaint and status are presented below.
Investigation Result for the Documented Complaint received by EPD on 4 August 2017
(Contract 2)
10.1.2
A
complaint was received by EPD on 4 August 2017 in respect with the matter of
water pollution in Ng Tung River suspected to be caused by the nearby
construction site. According to the
location map provided by the complainant, the suspected construction site
should be North Portal Site of Contract 2.
10.1.3
Joint site inspection among the RE, DHK and ET was carried out on 7 August 2017 in North Portal Site and Loi
Tung stream as well as Ng Tung River for the complaint investigation. The observations during site inspection are
summarized below.
(a) The major construction activities at North Portal
Site were undertaken inside the tunnel such as tunnel excavation, internal
structure, backfilling and cross passage, tunnel waterproofing and lining
formwork.
(b) The wastewater generated by the tunnel works including
groundwater were all diverted to the on-site wastewater treatment facility for
de-silting treatment.
(c) Wastewater treatment facility was implemented in
North Portal Site and it functioned properly. The wastewater after treatment was
stored in a final retention tank for either reuse on site or discharge of site
at the approval discharge point to Loi Tung Stream.) It was observed that treated water in the final
retention tank was visually clear.
(d) A water retention basin served as an intermediate
sand trap to de-silt runoff collected from permanent surface drains and natural
terrains was constructed at mid-valley of North Portal Site. As
advised by DHK, de-sludge of the water retention basin would be carried out regularly. In recent, de-sludge work was carried
out and completed on 5 August 2017 to remove the silt accumulated at basin
bottom after the successive rainstorm in July 2017.
(e) Inspection was
carried out at the approved water discharge point, the
discharge quality was visually in good condition. Moreover, trails of washed out soil at
the vegetation slope was observed next the approval water discharge point which
suspected to be caused by heavy rainstorm in July 2017.
(f) The water quality
of Loi Tung Stream at downstream
of North Portal Site was clear. It was observed that geotextile was placed on part of the Loi Tung Stream for protection of
the stream and the silt was cumulated on the surface of the geotextile. However, thick layer of silt was deposited at both sides of Loi Tung
Stream.
(g) The catchment at
the end of Loi Tung Stream and Ng Tung
River was cumulated with silt. As
advised by DHK, removal of silt at the box culvert was conducted on 5 August
2017.
(h) The water quality
of Ng Tung River at downstream
of North Portal Site was fair. It was observed that the water was flowing in the
dry flow channel and the river bed and part of the river
sides were deposited with thick silt and sediment.
(i) Inspection was
also carried out at further downstream of Ng Tung River and upstream near Man Uk Pin, it was observed that the
water quality was in good condition.
10.1.4
As advised by
the Contractor of Contract 2 (DHK), due to the continuous heavy downpour on 17
and 18 July 2017, the water level at the lowest point of the Northbound (NB)
Tunnel (designed for temporary storage of rainwater during heavy rain) had
reached an alarming level. To cope
of the risk of flooding in the tunnel, as approved by the Project Director of
DHK, emergency discharge was activated from 09:50 to around 14:00 on 18 July
2017 following the Flooding Emergency Procedure which established by DHK in May
2017.
10.1.5
During the
period of emergency discharge, rainwater inside the Northbound
tunnel was pumped to the water basin for de-silting purpose. However, part of the water was overflow
and directly discharged out of the site at the approved discharge point. An incident report for emergency
discharge was submitted to EPD and AECOM subsequently. Since such incident was reported to EPD
within 24 hours of its occurrence, it does not breach the Water Pollution
Control Ordinance/the Effluent Discharge Licence.
10.1.6
According to
the weather information from HKO, rainfall at 184.6mm (Red Rainstorm Warning)
and 134.3mm (Amber Rainstorm Warning) were recorded on 17 and 18 July 2017
respectively. Under the influence
of heavy rainstorm, Loi Tung Stream and Ng Tung River
was submerged with rapid flow of muddy water which generated from the
surrounding environment, vegetation slope as well as hillside run-off at
upstream of North Portal Site. (Photo 16 to 22) After the rainstorm, thick layer of silt
were deposited at the stream bottom and river sides. According to the inspection on 7 August
2017, trails of washed out soil at the vegetation slope was observed next the
approval water discharge point which suspected to be caused by heavy rainstorm
in July 2017.
10.1.7
In our
investigation, it is considered that the complaint was related to impact of the
rainstorm on 17 and 18 July 2017 and the inevitable emergency discharge of
North Portal Site on 18 July 2017. In
this particular case, DHK has subsequently arranged de-silting work to remove
deposited silt on the affected streams. Due to occasionally bad weather after the
emergency discharge, the remedial work is expected to be completed in
Mid-August 2017. In our conclusion,
since the incident was reported to EPD within 24 hours of its occurrence, it
does not breach the Water Pollution Control Ordinance/the Effluent Discharge
Licence.
10.1.8
In response to
the complaint¡¦s concern, several follow up actions were advised as following
(a) As matter of good practice after emergency discharge (should such even
occur in future), the responsible Contractor should promptly clean up silt deposited
at the affected streams, when the weather permits and conditions are safe.
(b) Replace the geotextile placed in the stream for protection of the
stream.
(c) Placing sand bag in water catchment area to preliminary de-silting.
(d) ET and IEC should conduct site audit/inspection after heavy rainstorm at
hot spots, including locations near C2 identified in the latest complaint and
other possible locations.
10.1.9
The statistical summary table of environmental complaint
is presented in Tables 10-1, 10-2 and 10-3.
Table 10-1 Statistical
Summary of Environmental Complaints
Reporting Period |
Contract No |
Environmental
Complaint Statistics |
Project related
complaint |
||
Frequency |
Cumulative |
Complaint Nature |
|||
19 May 2014 ¡V 31 July 2017 |
Contract 2 |
0 |
29 |
(17)Water Quality (7) Dust (4) Noise (1) dust & noise |
(5) water (2) dust (1) noise |
06 Nov 2013 ¡V 31 July 2017 |
Contract 3 |
0 |
5 |
(1) Dust (3) Water quality (1) Noise |
0 |
16 Aug 2013 ¡V 31 July 2017 |
Contract 5 |
0 |
4 |
(3) Dust (1) Noise |
0 |
16 Aug 2013 ¡V 31 July 2017 |
Contract 6 |
0 |
32 |
(23) Water Quality (6) Dust (2) Noise (1) Nuisance |
(6) water (2) dust (1) Nuisance |
15 Feb 2016 ¡V 31 July 2017 |
Contract 7 |
0 |
1 |
(1) Noise |
0 |
16 Aug 2013 ¡V 31 July 2017 |
SS C505 |
0 |
2 |
(1) Noise (1) dust |
0 |
1 ¡V 31 August 2017 |
Contract 2 |
1 |
30 |
(18)Water Quality (7) Dust (4) Noise (1) dust & noise |
(1) water |
Contract 3 |
0 |
5 |
(1) Dust (3) Water quality (1) Noise |
NA |
|
Contract 4 |
0 |
0 |
NA |
NA |
|
Contract 6 |
0 |
32 |
(23) Water Quality (6) Dust (2) Noise (1) Nuisance |
NA |
|
Contract 7 |
0 |
1 |
(1) Noise |
NA |
|
SS C505 |
0 |
2 |
(1) Noise (1) dust |
NA |
Table 10-2 Statistical
Summary of Environmental Summons
Reporting Period |
Contract No |
Environmental
Summons Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 July 2017 |
Contract 2 |
0 |
1 |
contravening the Water Pollution Control
(General) Regulations |
06 Nov 2013 ¡V 31 July 2017 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
Contract 5 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
Contract 6 |
0 |
0 |
NA |
15 Feb 2016 ¡V 31 July 2017 |
Contract 7 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
SS C505 |
0 |
0 |
NA |
1 ¡V 31 August 2017 |
Contract 2 |
0 |
1 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 4 |
0 |
0 |
NA |
|
Contract 6 |
0 |
0 |
NA |
|
Contract 7 |
0 |
0 |
NA |
|
SS C505 |
0 |
0 |
NA |
Table 10-3 Statistical
Summary of Environmental Prosecutions
Reporting Period |
Contract No |
Environmental
Prosecutions Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 July 2017 |
Contract 2 |
0 |
1 |
contravening the Water Pollution Control
(General) Regulations |
06 Nov 2013 ¡V 31 July 2017 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
Contract 5 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
Contract 6 |
0 |
0 |
NA |
15 Feb 2016 ¡V 31 July 2017 |
Contract 7 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 July 2017 |
SS C505 |
0 |
0 |
NA |
1 ¡V 31 August 2017 |
Contract 2 |
0 |
1 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 4 |
0 |
0 |
NA |
|
Contract 6 |
0 |
0 |
NA |
|
Contract 7 |
0 |
0 |
NA |
|
SS C505 |
0 |
0 |
NA |
11.1.1
The environmental mitigation measures that
recommended in the Implementation Schedule for Environmental Mitigation
Measures (ISEMM) in the approved EM&A Manual covered the issues of dust, noise,
water and waste and they are summarized presented in Appendix M.
11.1.2
All contracts under the Project shall be
implementing the required environmental mitigation measures according to the
approved EM&A Manual as subject to the site condition. Environmental mitigation measures
generally implemented by Contracts 2, 3, 4, 5, 6, 7 and Contract SS C505 in this Reporting Period are summarized in
Table
11-1.
Table 11-1 Environmental
Mitigation Measures
Issues |
Environmental
Mitigation Measures |
Water Quality |
¡P Wastewater to be treated by the
wastewater treatment facilities i.e. sedimentation tank or similar facility before
discharge. |
Air Quality |
¡P Maintain damp / wet surface
on access road ¡P Low vehicular speed within
the works areas. ¡P All vehicles must use wheel
washing facility before off site ¡P Sprayed water during
breaking works ¡P A
cleaning truck was regularly performed on the public road to prevent fugitive dust emission |
Noise |
¡P Restrain operation time of
plants from 07:00 to 19:00 on any working day except for Public Holiday and
Sunday. ¡P Keep good maintenance of
plants ¡P Place noisy plants away from
residence or school ¡P Provide noise barriers or
hoarding to enclose the noisy plants or works ¡P Shut down the plants when
not in used. |
Waste and Chemical Management |
¡P On-site sorting prior to
disposal ¡P Follow requirements and
procedures of the ¡§Trip-ticket System¡¨ ¡P Predict required quantity of
concrete accurately ¡P Collect the unused fresh
concrete at designated locations in the sites for subsequent disposal |
General |
¡P The site was generally kept
tidy and clean. |
11.2.1
As advised by the ER, the construction works
under Contract 5 was substantially completed on 31 August 2016. Construction activities for other Contracts
in the coming month are listed below:
Contract 2
Mid-Vent Portal |
Adit tunnel water proofing and lining
Stud tunnel post-excavation activities and
earthworks
Ventilation building superstructure and internal
structure works
Structure connecting the adit
tunnel, and ventilation
building
Temporary drainage system |
North Portal |
Construction of retaining wall, permanent
drainage, footways and stairs
Southbound tunnel enlargement, waterproofing and lining
Southbound tunnel internal structure, backfilling and construction of cross passage
Northbound tunnel top-heading and bench excavation,
waterproofing and lining
Erection of acoustic curtain door and tunnel door
for Northbound and Southbound tunnels North ventilation building superstructure,
internal structure and backfilling |
South Portal |
Post-excavation activities,
earthwork and mucking out
Tunnel internal structure, construction of CP and
tunnel backfilling
South ventilation building superstructure, internal structure, UU and E&M installation
Southbound and Northbound tunnel invert,
waterproofing and lining
Construction of retaining wall RW1, RW2a and RW2b |
Admin Building |
Construction of permanent drainage and fencing
wall
Building internal structure, fitting out work,
curtain wall, drainage, UU and E&M installation |
Contract 3
Construction of Boundary Wall for Pumping Station
Cable detection
and trail trenches
Remaining works on
New Kiu Tau Footbridge
Noise barrier construction
Road works
Viaduct segment erection
Installation of Noise Barrier steel column & panel
Parapet
Installation on bridge deck
Drainage Work
Mini-pile installation
Construction of Profile barrier & Planter wall on Bridge deck
Stressing of External Tendon
Construction of
Abutment Wall
Trenchless excavation
Contract 4
System design
E&M installation at Admin Building
E&A installation in tunnel
Contract 6
Bridge Pier Construction
Segment section
Tunnel Works
Sewage Treatment Plant Construction
Tunnel Ventilation Building Construction
Slip Road/At-grade Road/Periphery Road
Construction
Contract 7
U-trough and
abutment construction at Bridge A and Bridge E
Column construction at Bridge A and E
Deck
construction at Bridge B
and D
Construction of parapet wall and Façade Bridge C
Contract SS C505
Building no. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 13, 18, 23, 24 and 41 construction
Tower crane operation
Bridge construction works including
construction of bridge column, retaining wall, pile cap, pier, abutment, road
and finishes works
Underground drainage works, Road Works, CLP
Cable laying and Landscaping
Formwork and falsework for PTB¡¦s slab
construction and Bridges Decks
Construction PTB M/F, 1/F, 2/F and Roof
flat slab
Construction PTB non-structural wall
Steel beam works for maintenance platform
for PTB
PTB backfilling works
Elevated Walkway E1, E2, E3 and E4
construction
Bridge deck construction for Bridges 1 - 5
11.3.1
Key
issues to be considered in the coming month for Contracts 2, 3, 4, 6, 7 and SS C505 include:
Implementation of control measures for
rainstorm;
Regular clearance of stagnant water during
wet season;
Implementation of dust suppression measures
at all times;
Potential wastewater quality impact due to
surface runoff;
Potential fugitive dust quality impact due
from the dry/loose/exposure soil surface/dusty material;
Disposal of empty engine oil containers
within site area;
Ensure dust suppression measures are
implemented properly;
Sediment catch-pits and silt removal
facilities should be regularly maintained;
Management of chemical wastes;
Discharge of site effluent to the nearby
wetland, stockpiling or disposal of materials, and any dredging or construction
area at this area are prohibited;
Follow-up of improvement on general waste
management issues; and
Implementation of construction noise
preventative control measures
12.1.1
This is the 49th monthly EM&A report presenting the monitoring results and inspection
findings for the Reporting Period from 1 to 31 August 2017.
12.1.2
For
air quality monitoring, no 1-hour and 24-hour TSP monitoring results triggered
the Action or Limit Levels were recorded. No NOEs or
the associated corrective actions were therefore issued.
12.1.3
In the Reporting Period, no construction
noise measurement results that exceeded the Limit Level were recorded. Moreover, no valid noise
complaint which triggered an Action Level exceedance was recorded.
12.1.4
For water quality monitoring, a total of twenty-six (26) Limit Level (LL) exceedances, namely fourteen (14) LL exceedance of turbidity and twelve (12) LL exceedances of Suspended
Solids were recorded for the Project and they are summarized in Table 6-5. The investigation for the cause of
exceedances at WM2A(a) 24, 28, 29 and 30 Aug 2017 was
underway. According to the
investigation result, all other exceedances were concluded as non-project
related.
12.1.5
In this Reporting Period, one (1) documented
environmental complaint was received by
EPD regarding water quality issue for Contract 2. Investigation report (IR) for complaints
revealed that it was caused by rainstorm and emergency discharge by Contract 2.
The IR has completed and submitted
to relevant parties for record.
12.1.6
No
environmental summons or successful prosecutions were recorded in the Reporting
Period.
12.1.7
During
the Reporting Period, weekly joint site inspection by the RE, IEC, ET with the relevant Main-contractor
were carried out for Contracts 2, 3, 4, 6 and 7 in accordance with the EM&A Manual
stipulation. For Contract SS C505, weekly joint
site inspection was carried out
by the RE, IEC, ET
and main-contractor
whereas IEC performed
monthly site inspection. No non-compliance observed during the
site inspection.
12.2.1
During wet season, preventive
measures for muddy water or other water pollutants from site surface flow to local
stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be
properly maintained. The
Contractors should paid special attention on water quality mitigation measures and
fully implement according ISEMM of the EM&A Manual, in particular for
working areas near Ma Wat Channel and Ping Yuen River.
12.2.2
In
addition, all effluent discharge shall be ensure to fulfill Technical
Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland
and Coastal Waters criteria or discharge permits stipulation.
12.2.3
Construction
noise would be a key environmental issue during construction work of the
Project. Noise mitigation measures
such as using quiet plants should be implemented in accordance with the
EM&A requirement.
12.2.4
Since
most of construction sites under the Project are located adjacent to villages,
the Contractors should fully implement air quality mitigation measures to
reduce construction dust emission.
12.2.5
Furthermore, daily cleaning and weekly tidiness shall be properly performed
and maintained. In addition, mosquito
control should be kept to prevent mosquito breeding on site.