|
|
|
||||
|
|
|
||||
|
|
|
||||
|
|
Job No.: TCS00670/13 |
|
|
||
|
|
|
|
|
||
|
|
Agreement No. CE 45/2008
(CE) Liantang/Heung Yuen Wai Boundary Control Point
and Associated Works |
|
|
||
|
|
|
|
|
||
|
|
Monthly Environmental Monitoring and Audit Report (No.26)
¡V September 2015 |
|
|
||
|
|
Prepared For |
|
|
||
|
|
Civil Engineering and Development Department (CEDD) |
|
|
||
Date |
Reference No. |
Prepared By |
Certified By |
14
October 2015 |
TCS00670/13/600/R0513v2 |
|
|
Nicola Hon (Environmental Consultant) |
Tam Tak Wing (Environmental Team Leader) |
Version |
Date |
Remarks |
1 |
12 October 2015 |
First
Submission |
2 |
14
October 2015 |
Amended
against the IEC¡¦s comments on 13 October 2015 |
|
|
|
executive summary
ES01
This is the 26th monthly EM&A report presenting the monitoring
results and inspection findings for the reporting period from 1 to 30 September
2015 (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 six CEDD contracts including Contract 2 (CV/2012/08), Contract 3 (CV/2012/09), Contract 4 (TCSS), Contract 5 (CV/2013/03), Contract 6
(CV/2013/08) and Contract 7 (NE/2014/03) and one ArshSD
contract (Contract SS C505).
ES03
In the Reporting Period, the construction
works for Contract SS C505 was commenced on 1 September 2015 and therefore the active
contracts would be included Contract 2, Contract 3, Contract 5 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 |
6 |
102 |
24-hour TSP |
6 |
36 |
|
Construction Noise |
Leq(30min) Daytime |
8 |
45 |
Water Quality |
Water sampling |
3 (Contract 2&3) |
12(*) |
2 (Contract 5 and SS
C505) |
12(*) |
||
Joint Site Inspection / Audit |
IEC, ET, the Contractor and RE joint site Environmental Inspection and
Auditing |
Contract 2 |
4 |
Contract 3 |
4 |
||
Contract 5 |
5 |
||
Contract SS C505 |
5 |
(*) Monitoring day
Breach of Action and Limit (A/L) Levels
1.1.1
In the Reporting Period, no air quality and noise
exceedance was registered for the Project. For water quality, total of eight (8) Action/
Limit Level exceedances, namely two (2) Action Level exceedances of turbidity
and three (3) exceedances Action/ Limit Level of suspended solids recorded at
WM1 and two (2) exceedances of turbidity and one (1) exceedance of suspended
solids recorded at WM4. 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 |
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 |
2 |
2 |
4 |
-
The exceedances are
under investigation |
N/A |
|
SS |
2 |
2 |
4 |
Environmental
Complaint
ES04
In this Reporting Period, no environmental complaints
were received related to the EM&A programme.
Notification of Summons and Successful Prosecutions
ES05
No environmental summons or successful
prosecutions were recorded in the Reporting Period.
ES06
No reporting changes were made in the
Reporting Period.
ES07
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 September 2015. No
non-compliance was noted.
ES08
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 7, 16, 21 and 29 September 2015. No non-compliance was noted.
ES09
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
5 has been carried out by the RE, IEC, ET and the Contractor on 2, 10, 17, 24 and 30 September 2015. No non-compliance was noted.
ES10
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
SS C505 has been carried out by the RE, IEC, ET and the Contractor on 2, 9, 16, 23 and 30 September 2015. No non-compliance was noted.
Future Key Issues
ES11
As dry season is
approaching, special attention should be paid on the potential construction
dust impact since most of the construction sites are adjacent to villages. The
Contractor should fully implement the construction dust mitigation measures properly.
ES12
The Contractor was also
reminded to prevent muddy water or other water pollutants from site surface flow
to local stream such as Kong Yiu Channel and Ma
Wat Channel or public area. Water
quality mitigation measures to prevent surface runoff into nearby water bodies
or public areas should paid attention and fully implemented.
ES13
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.
ES14
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 in Reporting Month
5 Construction
Noise Monitoring
5.2 Noise
Monitoring Results in Reporting Month
6.2 Results
of Water Quality Monitoring
7.2 Records
of Waste Quantities
8.2 Findings
/ Deficiencies During the Reporting Month
9 Environmental
Complaint and Non-Compliance
9.1 Environmental
Complaint, Summons and Prosecution
10 Implementation
Status of Mitigation Measures
10.2 Tentative
Construction Activities in the Coming Month
10.3 Key
Issues for the Coming Month
11 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 AM7a
Table 4-5 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM8
Table 4-6 Summary
of 24-hour and 1-hour TSP Monitoring Results ¡V AM9b
Table 5-1 Summary
of Construction Noise Monitoring Results
Table 6-1 Summary
of Water Quality Monitoring Results for Contract 3
Table 6-2 Summary
of Water Quality Monitoring Results for Contract 5
Table 6-3 Breaches
of Water Quality Monitoring Criteria in Reporting Period
Table 7-1 Summary
of Quantities of Inert C&D Materials
Table 7-2 Summary
of Quantities of C&D Wastes
Table 8-1 Site
Observations for Contract 2
Table 8-2 Site
Observations for Contract 3
Table 8-3 Site
Observations for Contract 5
Table 8-4 Site
Observations for Contract SS C505
Table 9-1 Statistical
Summary of Environmental Complaints
Table 9-2 Statistical
Summary of Environmental Summons
Table 9-3 Statistical
Summary of Environmental Prosecution
Table 10-1 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
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/C granted on 12 March
2015.
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 26th
monthly EM&A report presenting the monitoring results and inspection
findings for reporting period from 1 to 30 September 2015.
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 Waste
Management
Section 8 Site
Inspections
Section 9 Environmental
Complaints and Non-Compliance
Section 10 Implementation
Status of Mitigation Measures
Section 11 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 not yet been awarded. The work of the Contract 4 includes provision and installation of
Traffic Control and Surveillance System and the associated electrical and
mechanical works for the Project.
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 expected to be 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 not yet been awarded. 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 been 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,
5 and SS C505 and they are summarized in below. Moreover, the 3-month rolling
construction program of the Contracts 2, 3, 5 and SS C505 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 |
Cavern excavation
Adit invert
slab
Ventilation Building Foundation Work |
North Portal |
Permanent slope and composite wall
Tunnel Boring Machine (TBM) testing
Southbound bench excavation and Northbound
top heading excavation
Associated PME installation for operation
of TBM (mortar plant, cooling system etc.) |
South Portal |
Rock Excavation to Vent. Bldg. Formation
Southbound excavation and foundation works |
Northbound excavation and bored piles works
|
|
|
Drill and Blast Set Up
Installation of blast door for Southbound
tunnel |
Admin Building |
Removal of surcharge
Drainage works |
|
Contract 3 (CV/2012/09)
2.4.3
The Contract commenced in November 2013. In this Reporting Period, construction
activities conducted are listed below:
Cable
detection and trial trenches
Decking
construction for Bridge E
E&M
work for new valve control & Telemetry House
Filling
works at Tong Hang
Storm
drain laying
Noise
barrier construction
Pier /
pier table construction
Pile cap
works
Piling
works
Portal
beam erection
Pre-drilling
Road works
at Fanling Highway
Retaining
Wall construction
Socket
H-pile installation
Tree
felling works
Utilities
duct laying
Viaduct
segment erection
Portal
beam construction
Slope
works
Construction
of temporary steel ramp for Kiu Tau Footbridge
Contract 4 (Contract number to be assigned)
2.4.4
The contract has not yet been awarded.
Contract 5 (CV/2013/03)
2.4.5
The Contract awarded in April 2013 and
commenced on August 2013. In this
Reporting Period, construction activities conducted are listed below:
Removal of
abortive rising mains at existing Lin Ma Hang (LMH) Road
Re-construction
of rising main at existing LMH Road
Diversion
of Underground Utility (UU) at existing LMH Road
Construction
of secondary boundary fencing
Construction of Temporary Secondary Boundary Fencing
Construction
of Depressed Road at BCP3
Additional
works (Access Works) for Village House at RS4
Drainage
works at existing/proposed LMH Road
Drainage
works (Connection to Box 3) at BCP Area
Brick
laying at footpath of proposed LMH road
Irrigation
at proposed LMH Road
Formation
works at BCPB Area
Installation
of Underground utilities at proposed and existing LMH road
Road works
(kerb laying) for proposed and existing LMH road
Bituminous
laying at existing & proposed LMH road
Contract 6 (CV/2013/08)
2.4.6
Contract 6 has awarded in June 2015 and
construction work was expected to be commenced on 1 November 2015.
Contract 7 (NE/2014/03)
2.4.7
Contract 7 has not yet awarded.
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:
Excavation
& fill works
Predrilling
Percussive
piling
Site
office set-up
2.5.1
In according to the EP, the required documents
have submitted to EPD for retention which listed in below:
Project Layout Plans of Contracts 2, 3, 5, 6 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, 5
and SS C505
Contamination Assessment Plan (CAP) for Po
Kat Tsai, Loi Tung and the workshops in Fanling
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
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 |
3 Mar 2014 |
28 Feb 2019 |
No.: W5/1I389 |
28 Mar 2014 |
31 Mar 2019 |
||
No.: W5/1I390 |
19 June 2014 |
31 Mar 2019 |
||
No.: W5/1I391 |
28 Mar 2014 |
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-RN0304-15 |
19 May 2015 |
14 Nov 2015 |
GW-RN0468-15 |
29 Aug 2015 |
28 Nov 2015 |
||
GW-RN0467-15 |
23 Aug 2015 |
22 Nov 2015 |
||
GW-RN0477-15 |
14 Aug 2015 |
31 Oct 2015 |
||
GW-RN0479-15 |
31 Jul 2015 |
29 Jan 2016 |
||
GW-RN0562-15 |
7 Sep 2015 |
6 Dec 2015 |
||
GW-RN0606-15 |
25 Sep 2015 |
24 Nov 2015 |
||
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-RN0230-15 |
15 Apr 2015 |
14 Oct 2015 |
GW-RN0334-15 |
8 Jun 2015 |
7 Dec 2015 |
||
GW-RN0428-15 |
9 Ju1 2015 |
31 Dec 2015 |
||
GW-RN0466-15 |
3 Aug 2015 |
30 Sep 2015 |
||
GW-RN0492-15 |
11 Aug 2015 |
30 Sep 2015 |
||
GW-RN0473-15 |
29 Jul 2015 |
17 Dec 2015 |
||
GW-RN0461-15 |
5 Aug 2015 |
8 Jan 2016 |
||
GW-RN0495-15 |
12 Aug 2015 |
11 Feb 2016 |
||
GW-RN0497-15 |
14 Aug 2015 |
13 Feb 2016 |
||
GW-RN0488-15 |
6 Sep 2015 |
22 Nov 2015 |
||
GW-RN0525-15 |
29 Aug 2015 |
13 Feb 2016 |
||
GW-RN0542-15 |
1 Sep 2015 |
25 Feb 2016 |
||
GW-RN0548-15 |
1 Sep 2015 |
30 Sep 2015 |
||
GW-RN0608-15 |
28 Sep 2015 |
29 Feb 2016 |
||
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 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 |
In progress |
||
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-RN0518-15 |
22 Aug 2015 |
22 Sep 2015 |
GW-RN0602-15 |
23 Sep 2015 |
21 Mar 2016 |
||
PP-RN0023-15 |
28 Aug 2015 |
5 Oct 2015 |
||
PP-RN0027-15 |
5 Oct 2015 |
2 Apr 2016 |
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 |
AM1a* |
Garden Farm,
Tsung Yuen Ha Village |
BCP |
ArchSD SS C505 Contract 5 |
AM2 |
Village House
near Lin Ma Hang Road |
LMH to Frontier
Closed Area |
Contract 5, Contract 6 |
AM3 |
Ta Kwu Ling
Fire Service Station of Ta Kwu Ling Village. |
LMH to Frontier
Closed Area |
Contract 5, Contract 6 |
AM4a |
A village house located at about
160m east side of the original point AM4 |
LMH to Frontier
Closed Area |
Contract 6 |
AM5 |
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).
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 |
ArchSD SS C505 Contract 5 |
NM2 |
Village House near Lin Ma Hang
Road |
Lin Ma Hang to Frontier Closed
Area |
Contract 5, 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 |
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 |
|
WM1 |
Downstream of Kong Yiu Channel |
833 679 |
845 421 |
Alternative location located at upstream 51m of the designated location |
ArchSD SS C505 Contract 5 |
WM1- Control |
Upstream of Kong Yiu Channel |
834 185 |
845 917 |
NA |
ArchSD SS C505 Contract 5 |
WM2A |
Downstream of River Ganges |
834 204 |
844 471 |
Alternative location located at downstream 81m of the designated
location |
Contract 6 |
WM2A- Control |
Upstream of River Ganges |
835 270 |
844 243 |
Alternative location located at upstream 78m 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 |
WM3 |
Downstream of River Indus |
836 324 |
842 407 |
NA |
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 |
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¡¨), 3 consecutive Leq(5min)
measurement will depended CNP requirements to undertake. 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 Cesva
CB-5* 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 6820/ 650MDS |
pH meter |
YSI Professional Plus / AZ8685 pH pen-style meter/ YSI
6820/ 650MDS |
Turbidimeter |
Hach 2100Q*/ YSI 6820/
650MDS |
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; and also Leq(15min) in
three consecutive 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 locations. The sampling produce 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 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 pH pen-style meter 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 |
|
AM1a |
265 |
143 |
500 |
260 |
AM2 |
268 |
149 |
||
AM3 |
269 |
145 |
||
AM4a |
267 |
148 |
||
AM5 |
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, NM2, 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 |
WM2B |
WM3 |
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, 5 and Contract SS C505 and air quality monitoring was performed at 6
relevant designated locations as below:
AM1a - Garden Farm, Tsung Yuen Ha Village;
AM2 - Village House near Lin Ma Hang Road;
AM3 - Ta Kwu Ling Fire Service Station of Ta
Kwu Ling Village;
AM7b ¡V Loi Tung Village;
AM8 - Po Kat Tsai Village;
AM9b - Nam Wa Po
Village House No. 80
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 102 events of 1-hour TSP and 36
events 24-hours TSP monitoring were carried out and the monitoring results are
summarized in Tables 4-1 to 4-6. 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 AM1a
Date |
24-hour
TSP (mg/m3) |
1-hour
TSP (mg/m3) |
||||
Date |
Start Time |
1st reading |
2nd reading |
3rd reading |
||
2-Sep-15 |
28
|
1-Sep-15 |
13:32 |
44 |
42 |
45 |
8-Sep-15 |
41
|
7-Sep-15 |
14:29 |
37 |
42 |
50 |
14-Sep-15 |
57
|
12-Sep-15 |
13:23 |
141 |
134 |
141 |
19-Sep-15 |
47
|
18-Sep-15 |
10:41 |
127 |
104 |
107 |
25-Sep-15 |
55
|
24-Sep-15 |
10:38 |
45 |
34 |
33 |
30-Sep-15 |
66
|
30-Sep-15 |
10:30 |
176 |
160 |
139 |
Average (Range) |
49 (28-66) |
Average (Range) |
89 (33 ¡V 176) |
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 |
||
2-Sep-15 |
16
|
1-Sep-15 |
13:16 |
33 |
32 |
41 |
8-Sep-15 |
72
|
7-Sep-15 |
11:25 |
40 |
40 |
48 |
14-Sep-15 |
124
|
12-Sep-15 |
13:13 |
140 |
138 |
150 |
19-Sep-15 |
85
|
18-Sep-15 |
10:39 |
138 |
158 |
187 |
25-Sep-15 |
105
|
24-Sep-15 |
10:23 |
40 |
26 |
26 |
30-Sep-15 |
145
|
30-Sep-15 |
10:21 |
121 |
98 |
98 |
Average (Range) |
91 (16-124) |
Average (Range) |
86 (26 ¡V 187) |
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 |
||
2-Sep-15 |
9
|
1-Sep-15 |
13:10 |
14 |
13 |
17 |
8-Sep-15 |
10
|
7-Sep-15 |
11:18 |
45 |
56 |
62 |
14-Sep-15 |
39
|
12-Sep-15 |
13:07 |
148 |
112 |
111 |
19-Sep-15 |
58
|
18-Sep-15 |
10:36 |
85 |
78 |
87 |
25-Sep-15 |
14
|
24-Sep-15 |
10:14 |
61 |
47 |
37 |
30-Sep-15 |
21
|
30-Sep-15 |
10:15 |
144 |
126 |
116 |
Average (Range) |
25 (9-58) |
Average (Range) |
76 (13 ¡V 148) |
Table 4-4 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 |
||
2-Sep-15 |
17
|
4-Sep-15 |
9:21 |
26 |
46 |
24 |
8-Sep-15 |
66
|
9-Sep-15 |
9:17 |
52 |
46 |
39 |
14-Sep-15 |
90
|
15-Sep-15 |
9:09 |
125 |
120 |
117 |
19-Sep-15 |
65
|
21-Sep-15 |
13:09 |
73 |
77 |
81 |
25-Sep-15 |
62
|
26-Sep-15 |
9:37 |
97 |
86 |
83 |
30-Sep-15 |
84
|
|
||||
Average (Range) |
64 (17-90) |
Average (Range) |
73 (24 ¡V 125) |
Table 4-5 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 |
||
2-Sep-15 |
18
|
4-Sep-15 |
13:52 |
27 |
39 |
40 |
8-Sep-15 |
34
|
9-Sep-15 |
13:08 |
48 |
36 |
30 |
14-Sep-15 |
58
|
15-Sep-15 |
13:16 |
103 |
95 |
95 |
19-Sep-15 |
59
|
21-Sep-15 |
9:28 |
61 |
66 |
78 |
25-Sep-15 |
63
|
26-Sep-15 |
9:55 |
84 |
77 |
81 |
30-Sep-15 |
68
|
|
||||
Average (Range) |
50 (18-68) |
Average (Range) |
64 (27 ¡V 103) |
Table 4-6 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 |
||
2-Sep-15 |
20
|
1-Sep-15 |
9:03 |
30 |
23 |
24 |
8-Sep-15 |
52
|
7-Sep-15 |
9:04 |
54 |
75 |
85 |
14-Sep-15 |
96
|
12-Sep-15 |
9:15 |
96 |
97 |
77 |
19-Sep-15 |
67
|
18-Sep-15 |
14:40 |
86 |
96 |
70 |
25-Sep-15 |
68
|
24-Sep-15 |
13:00 |
79 |
85 |
82 |
30-Sep-15 |
87
|
30-Sep-15 |
14:17 |
131 |
140 |
153 |
Average (Range) |
65 (20-96) |
Average (Range) |
82 (23 ¡V 153) |
4.2.2
As shown in Tables 4-1 to 4-6, all
the 1-hour TSP and 24-hour TSP monitoring results were below the Action/Limit
Levels. No Notification of
Exceedance (NOE) was issued in this Reporting Period.
4.2.3
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 and 5 and Contract SS C505 and noise monitoring was performed at 8
relevant designated locations as below:
NM1 - Tsung Yuen Ha Village House No. 63;
NM2 - Village House near Lin Ma Hang Road;
NM5 - Village House, Loi Tung
NM6 - Tai Tong Wu Village House 2
NM7 - Po Kat Tsai Village
NM8 - Village House, Tong Hang;
NM9 - Village House, Kiu
Tau Village; and
NM10 - Nam Wa Po
Village House No. 80
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 45 event 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, NM2, 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 was performed at NM10.
So, 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 Table 5-1. 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 |
NM2 |
NM8 |
NM9 |
NM10(*) |
Date |
NM5 |
NM6 |
NM7 |
1-Sep-15 |
53
|
62
|
59
|
56 |
66 |
4-Sep-15 |
54
|
61
|
63
|
7-Sep-15 |
49
|
61
|
58
|
56 |
60 |
9-Sep-15 |
53
|
57
|
67
|
12-Sep-15 |
51
|
71
|
60
|
58 |
68 |
15-Sep-15 |
51
|
57
|
64
|
18-Sep-15 |
50
|
58
|
55
|
59 |
62 |
21-Sep-15 |
53
|
61
|
64
|
24-Sep-15 |
56
|
67
|
59
|
60 |
64 |
26-Sep-15 |
54
|
60
|
56
|
30-Sep-15 |
57
|
59
|
61
|
61 |
64 |
|
|||
Limit Level |
75 dB(A) |
Remarks
(*) façade correction (+3 dB(A)
is added according to acoustical principles and EPD guidelines
5.2.2
As shown in Table
5-1, the noise level measured at the designated monitoring locations
NM1, NM2, NM5, NM6, NM7, NM8, NM9 and NM10, were below 75dB(A). Furthermore, there was no noise complaints (Action Level
exceedance) received by the RE, Contractors or CEDD in the Reporting
Period. Therefore, no Action or
Limit Level exceedance was triggered and no corrective action was required.
6.1.1
In the Reporting Period, construction works under the
project has been commenced in Contracts
3, 5 and Contract SS C505 water
quality monitoring was performed at 5 relevant designated locations as below:
WM1 ¡V Contract 5 working site downstream at
Kong Yiu Channel;
WM1 ¡V Control ¡V Contract 5 working site
upstream at Kong Yiu Channel;
WM4 ¡VSouth Portal of Contract 2 and Contract
3 working site downstream of Ma Wat Channel
WM4 ¡V Control A - Contract 3 working site Kau Lung Hang Stream
WM4 ¡V Control B - Contract 3 working site
Upstream of Ma Wat Channel
6.1.2
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, there were twelve (12) sampling days of water quality monitoring conducted at the
designated water monitoring location.
6.2.2
The key monitoring parameters including Dissolved Oxygen, Turbidity and Suspended
Solids are summarized in Tables 6-1 and 6-2. Breaches of water quality monitoring
criteria are shown in Table 6-3. 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 Summary
of Water Quality Monitoring Results for 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-Sep-15 |
6.4 |
7.3 |
5.4 |
48.4 |
27.3 |
30.3 |
35.0 |
25.5 |
24.5 |
4-Sep-15 |
5.4 |
6.6 |
2.8 |
21.6 |
11.3 |
12.1 |
15.0 |
10.0 |
15.0 |
7-Sep-15 |
5.7 |
6.9 |
4.1 |
31.6 |
18.6 |
19.6 |
29.0 |
17.0 |
17.5 |
9-Sep-15 |
7.8 |
7.8 |
7.4 |
27.3 |
6.0 |
12.9 |
17.0 |
8.0 |
17.5 |
12-Sep-15 |
8.1 |
8.3 |
7.3 |
18.1 |
7.2 |
16.5 |
16.5 |
6.0 |
19.0 |
14-Sep-15 |
5.7 |
6.3 |
2.4 |
24.5 |
12.2 |
6.0 |
22.5 |
14.0 |
6.0 |
16-Sep-15 |
6.2 |
5.9 |
2.7 |
45.1 |
18.1 |
8.4 |
38.5 |
12.5 |
10.0 |
18-Sep-15 |
5.6 |
6.2 |
2.7 |
55.6 |
9.8 |
15.9 |
48.0 |
5.5 |
18.5 |
21-Sep-15 |
6.1 |
7.3 |
4.3 |
61.1 |
104.5 |
33.7 |
33.5 |
67.0 |
25.5 |
24-Sep-15 |
8.4 |
6.9 |
5.8 |
18.9 |
4.7 |
12.1 |
11.5 |
5.0 |
10.5 |
26-Sep-15 |
6.4 |
6.4 |
4.4 |
24.2 |
15.6 |
12.2 |
17.5 |
10.5 |
7.5 |
30-Sep-15 |
6.3 |
6.6 |
3.8 |
6.9 |
3.6 |
8.8 |
8.5 |
4.0 |
11.0 |
Remark:
i.
bold and underlined indicated Limit Level
exceedance.
Table 6-2 Summary
of Water Quality Monitoring Results for Contract 5
Date |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
|||
WM1 |
WM1- Control |
WM1 |
WM1- Control |
WM1 |
WM1- Control |
|
2-Sep-15 |
6.7 |
6.6 |
over range |
over range |
880.0 |
898.5 |
4-Sep-15 |
6.1 |
5.9 |
540.0 |
516.5 |
377.5 |
218.0 |
7-Sep-15 |
6.4 |
6.3 |
over range |
over range |
957.0 |
915.5 |
9-Sep-15 |
6.3 |
6.9 |
59.8 |
20.9 |
58.5 |
17.0 |
12-Sep-15 |
7.4 |
8.4 |
59.3 |
16.5 |
58.0 |
10.0 |
14-Sep-15 |
7.2 |
6.9 |
21.8 |
22.2 |
17.0 |
18.5 |
16-Sep-15 |
7.2 |
6.1 |
47.5 |
46.2 |
52.0 |
65.5 |
18-Sep-15 |
8.2 |
8.1 |
14.4 |
13.6 |
9.0 |
12.0 |
21-Sep-15 |
7.1 |
7.0 |
113.5 |
120.0 |
79.5 |
89.0 |
24-Sep-15 |
7.2 |
6.7 |
46.3 |
49.1 |
41.5 |
42.5 |
26-Sep-15 |
7.2 |
6.9 |
13.8 |
14.7 |
4.0 |
5.0 |
30-Sep-15 |
7.1 |
7.1 |
11.5 |
9.3 |
4.5 |
3.5 |
Remark:
i bold and
underlined indicated Limit Level exceedance.
i bold and italic
indicated Limit Level exceedance.
Table 6-3 Breaches
of Water Quality Monitoring Criteria in Reporting Period
Location |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Suspended Solids (mg/L) |
Total Exceedance |
||||
Action |
Limit |
Action |
Limit |
Action |
Limit |
Action |
Limit |
|
WM1 |
0 |
0 |
2 |
0 |
2 |
1 |
4 |
1 |
WM4 |
0 |
0 |
0 |
2 |
0 |
1 |
0 |
3 |
No of Exceedance |
0 |
0 |
2 |
2 |
2 |
2 |
4 |
4 |
6.2.3
In this Reporting Period, total of eight (8) Action/
Limit Level exceedances, namely two (2) Action Level exceedances of turbidity
and three (3) exceedances Action/ Limit Level of suspended solids recorded at
WM1 and two (2) exceedances of turbidity and one (1) exceedance of suspended
solids recorded at WM4.
6.2.4
NOE was issued to relevant parties upon
confirmation of the monitoring result.
The investigation for the cause of exceedance is presented in below.
Investigation Result
for Turbidity and SS Exceedance at WM1 on 20 and 22 August 2015 (follow up of
last Reporting Period)
6.2.5
According to the site information provided
from the Contractor of C2 (DHK), construction activities carried out on 25 July
2015 at South Portal included tunnel excavation and ventilation building
formation and piling works which undertaken away from the Ma Wat River.
6.2.6
According to the site record from the
monitoring team, no abnormality was observed at both control station WM4-CA and
WM4-CB. However, muddy water was observed at impact station WM4. During the
course of monitoring, there were no observable water impacts such as muddy
water discharge from the site, therefore, the Contractor and ET carried out a
visit at the upstream area to trace the source of muddy water.
6.2.7
As shown in the photo record, muddy water has
been flowed from other upstream location which was not under monitored by the
Contract. This situation was also frequently recorded during weekly joint site
inspection by the RE, IEC, Contractor and ET since the contract commencement. In conclusion, it is considered
that the exceedance was due to the external muddy water from upstream and not
related to the works under the Contract.
Investigation Result
for Exceedance at WM1 on 20 August 2015 (Contract 5) (follow up of last
Reporting Period)
6.2.8
According to the site information provided by
the Contractor, Formation work at BCP and construction of Depressed Road at
BCP3 were carried out under Contract 5 on 20 August 2015. No wastewater discharges were made on 20
August 2015
6.2.9
According to the site record by the
monitoring team, there was heavy rain before the monitoring works and high
rainfall was recorded at Ta Kwu Ling Weather Station. During the course of
water monitoring on 20 August 2015, muddy water was observed throughout the
channel including both impact and control station.
6.2.10
Since the water monitoring was conducted
after rain, the existing condition of the river water was deteriorated by
vigorous water flow in the river and stirred up the sediment at river bed. High turbidity and SS result was also
recorded at upstream control station.
In view of the subsequent monitoring activities and results during
non-rainy day in the week after, there were no exceedances triggered. It is considered that the exceedances
were a single incident due to the rainstorm.
Investigation Result
for Exceedance at WM1 on 22 August 2015 (Contract 5) (follow up of last
Reporting Period)
6.2.11
According to the site information provided by
the Contractor, formation work at BCP and construction of Depressed Road at
BCP3 were carried out under Contract 5 on 22 August 2015. Moreover, no wastewater discharge was
made on 22 August 2015.
6.2.12
According to the site record by the
monitoring team, no wastewater discharge from the site was observed and the
water in WM1 was in pale yellow. As observed by the monitoring staff, the water
depth at WM1 was shallow (0.31m) and the sediment of the riverbed was very
loose due to continuous rainfall on 20 and 21 August 2015. Therefore, cloudy
water was unavoidably generated when the sampling bucket stirred up the loose
sediment during water sampling.
6.2.13
In view of the subsequent monitoring
result, the turbidity and SS level was constantly reduced. Since there were no discharges and
runoff generated from the construction site. It is considered that the exceedances
were not likely due to the works under the project
Investigation Result
for Exceedance at WM1 on 4 September 2015 (Contract SS C505)
6.2.14
According to the site information provided
by the Contractor, percussive piling, pre-drilling and excavation was carried
out on 4 September 2015 and the active construction area was carried out away
from the river course.
6.2.15
During the ET¡¦s site inspection on 9 and
16 September 2015, it was observed that, to avoid direct discharge of surface
runoff, temporary drainage channel has been constructing at the periphery of
the site to intercept and divert the runoff to the wastewater treatment
facilities. No discharge was observed during the site inspection.
6.2.16
As advised by the Contractor, as the water
mitigation measures, all the treated water was recirculated in pre-drilling
works or watering on site area and haul roads since commencement of contract.
6.2.17
According to the site record by the ET,
there was heavy rain before the monitoring work and muddy water was observed
throughout the channel. Moreover,
high concentration of turbidity and SS were also recorded at the upstream
control station. It is considered
that the exceedances were due to the rain and not likely related to the works
under the project.
Investigation Result
for Exceedance at WM1 on 4 September 2015 (Contract 5)
6.2.18
To be reported.
Investigation Result
for Exceedance at WM1 on 9 and 12 September 2015 (Contract SS C505)
6.2.19
To be reported.
Investigation Result
for Exceedance at WM1 on 9 and 12 September 2015 (Contract 5)
6.2.20
To be reported.
Investigation Result
for Exceedance at WM4 on 16 September 2015 (Contract 2)
6.2.21
To be reported.
Investigation Result
for Exceedance at WM4 on 16 September 2015 (Contract 3)
6.2.22
According to the site diary provided by
the Contractor, construction works carried out on 16 September 2015 included
erection of formwork, excavation, fixing reinforcement bar, backfilling and
compaction and pipe laying. The works were carried out
away from the watercourse. Surface runoff and wastewater generated from site
was all diverted and treated by wastewater treatment facilities prior to
discharge.
6.2.23
According to the site record from the
monitoring team, no abnormality was observed at both control station WM4-CA and
WM4-CB but muddy water was observed at impact station WM4.
6.2.24
Joint site inspection was carried out by
the RE, IEC, Contractor and ET on 16 September 2015. It was observed that muddy
water has been flowing from an upstream location which was not under monitored
by the Contract. Turbid water was
also observed at Bridge D2 and it was considered that the stream water was
affected by the muddy water from upstream location.
6.2.25
In conclusion, it is considered that the
exceedance was due to the external muddy water from upstream and not related to
the works under the Contract.
Investigation Result
for Exceedance at WM4 on 18 September 2015 (Contract 2)
6.2.26
To be reported.
Investigation Result
for Exceedance at WM4 on 18 September 2015 (Contract 3)
6.2.27
To be reported.
7.1.1
Waste management was carried out by an
on-site Environmental Officer or an Environmental Supervisor from time to time.
7.2.1
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.
7.2.2
The quantities of waste for disposal in this
Reporting Period are summarized in Tables 7-1 and 7-2 and the Monthly
Summary Waste Flow Table is shown in Appendix L. Whenever possible, materials were reused
on-site as far as practicable.
Table 7-1 Summary
of Quantities of Inert C&D Materials for the Project
Type of Waste |
Contract 2 |
Contract 3 |
Contract 5 |
Contract SS C505 |
Total Quantity |
||||
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
||
C&D Materials (Inert) (in '000m3) |
41.5817 |
-- |
2.092 |
-- |
0 |
-- |
0.94 |
-- |
44.6137 |
Reused in this Project (Inert) (in '000 m3) |
0.1339 |
-- |
0.264 |
-- |
0 |
-- |
0.94 |
-- |
1.3379 |
Reused in other Projects (Inert) (in '000 m3) |
40.550 |
C6/ NENT |
0.370 |
NENT |
0 |
-- |
0 |
-- |
40.92 |
Disposal as Public Fill (Inert) (in '000 m3) |
0.8975 |
Tuen Mun 38 |
1.828 |
Tuen Mun 38 |
0 |
-- |
0 |
-- |
2.7255 |
Table 7-2 Summary
of Quantities of C&D Wastes for the Project
Type of Waste |
Contract 2 |
Contract 3 |
Contract 5 |
Contract SS C505 |
Total Quantity |
||||
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
||
Recycled Metal (¡¥000kg) # |
0 |
- |
0 |
- |
0 |
-- |
0 |
-- |
0 |
Recycled
Paper / Cardboard Packing (¡¥000kg) # |
0 |
- |
0 |
- |
0 |
-- |
0 |
-- |
0 |
Recycled Plastic (¡¥000kg) # |
0 |
- |
0.0001 |
Licensed collector |
0 |
-- |
0 |
-- |
0.0001 |
Chemical Wastes (¡¥000kg) # |
1.0560 |
Licensed collector |
0 |
- |
0 |
-- |
0 |
-- |
1.0560 |
General Refuses (¡¥000m3) |
0.0611 |
NENT |
0.115 |
NENT |
0.005 |
NENT |
0.0068 |
NENT |
0.1879 |
Remark #: Unit of recycled metal, recycled
paper/ cardboard packing, recycled plastic and chemical waste for Contractor 3
was in (¡¥000m3).
8.1.1
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
8.2.1
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 September 2015. No non-compliance was noted.
8.2.2
The findings / deficiencies of Contract
2 that observed during the weekly site inspection are listed in Table
8-1.
Table 8-1 Site
Observations for Contract 2
Date |
Findings / Deficiencies |
Follow-Up Status |
4 September 2015 |
Stagnant water cumulated inside the drip tray should be removed to
maintain the drip tray is functional. (South Portal) |
Stagnant
water cumulated inside the drip tray was removed. |
11 September 2015 |
Chemical waste storage container should be security locked. (South
Portal) |
Chemical waste container was properly locked.. |
18 September 2015 |
Two overflow pipe was observed nearby the storm water stream. Turbid
water and mud was cumulated nearby, the contractor should clean up the mud
and water to prevent discharge into the water course.. (North Portal) |
The overflow pipes were pluged and mud which cumulated nearby was
cleared. |
25 September 2015 |
Dark smoke emitted from the backhoe was observed. Proper maintenance
should be provided. (South
Portal) |
No dark smoke emitted from the backhoe was observed. |
Lifting eyes of the concrete block should filled with sand to prevent
stagnant water cumulated inside. (North Portal) |
lifting eyes fileld with sand was observed to prevent stagnant water
accmulation. |
Contract 3
8.2.3
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 7, 16, 21 and 29 September 2015. No non-compliance was noted.
8.2.4
The findings / deficiencies of Contract
3 that observed during the weekly site inspection are listed in Table
8-2.
Table 8-2 Site
Observations for Contract 3
Date |
Findings / Deficiencies |
Follow-Up Status |
7 September 2015 |
Surface runoff to the river course was observed near Pier AC4, the Contractor
should provide sand bags to divert the runoff to the wastewater treatment
facilities. |
Sand bags were erected near Pier AC4 to prevent direct runoff into the
river course. |
16 September 2015 |
Wheel washing notice should be displayed at all site exit to remind the
vehicle driver to undertake wheel washing before leaving the site. |
Not required for reminder. |
21 September 2015 |
The Contractor was reminded to ensure all the vehicles are washed
properly before leaving the construction site. |
Not required for reminder. |
29 September 2015 |
The Contractor was reminded to increase the frequency of water spraying
on haul road. |
Not required for reminder. |
The Contractor was reminded to maintain proper function of the pH
reading shown on the Wetsep. |
Not required for reminder. |
Contract 5
8.2.5
In the Reporting Period, joint site
inspection for Contract 5 to evaluate the site environmental performance has
been carried out by the RE, IEC, ET and the Contractor on 2, 10, 17, 24 and 30 September 2015. No non-compliance was noted.
8.2.6
The findings / deficiencies of Contract
5 that observed during the weekly site inspection are listed in Table
8-3.
Table 8-3 Site
Observations for Contract 5
Date |
||
2 September 2015 |
No adverse environmental were observed. |
NA |
10 September 2015 |
Soil and gravel on LMH public road (near AM2) were observed, the
Contractor should clean the road regularly and maintain cleanliness. |
Soil and gravel on LMH public road (near AM2) has been cleaned up. |
17 September 2015 |
The Contractor was reminded to maintain site cleanliness, all the
disused materials and general refuse should be removed regularly. (Location:
BCP) |
Not required for reminder. |
24 September 2015 |
The Contractor was reminded to improve the site tidiness and
housekeeping, also all the general refuse should be removed regularly.
(Location: 1500 Pipe) |
Not required for reminder. |
The wheel washing notice should be placed properly in order to give a
better vision to the driver. (Location LMH site office) |
Not required for reminder. |
|
The Contractor was reminded to fence off the tree protection area.
(Location: 1500 Pipe area) |
Not required for reminder. |
|
30 September 2015 |
Wheel washing notice sign should
display at all site exit and make sure all vehicles leaving from site are
clean. |
Not required for reminder. |
Contract SS C505
8.2.7
In the Reporting Period, joint site
inspection for Contract SS C505 to evaluate the site environmental performance
has been carried out by the RE, IEC, ET and the Contractor on 2, 9, 16, 23 and 30 September 2015. No non-compliance was noted.
8.2.8
The findings / deficiencies of Contract
5 that observed during the weekly site inspection are listed in Table
8-4.
Table 8-4 Site
Observations for Contract SS C505
Date |
Findings / Deficiencies |
Follow-Up Status |
2 September 2015 |
Plug for the drip tray missing was observed. The contractor should plug
the drip tray to prevent stagnant water cumulated inside the drip tray
leaking out. |
A plug was provided for the drip tray. |
9 September 2015 |
The Contractor was reminded to provide secondary containment such as
drip tray and chemicals labels to the chemical containers at WetSep in
Portion 1. |
Not required for reminder. |
16 September 2015 |
Stagnant water was observed on site. The Contractor was reminded to take
measures to avoid stagnant water storage for mosquito breeding prevention. |
Not required for reminder. |
Dusty stockpile without proper cover was observed. The Contactor was
reminded to cover the stockpile with impervious sheet to reduce dust
generation. |
Not required for reminder. |
|
The Contractor was reminded to increase the frequency of water spray on
the haul road. |
Not required for reminder. |
|
23 September 2015 |
Opened sand stockpile was observed at Portion 1 Piling Area, the
Contract should cover the stockpile with impervious sheet to reduce dust
impact. |
Opened sand stockpile was covered with impervious sheet to reduce dust
impact. |
The Contractor was reminded to provide water spraying on haul road in
upcoming dry season. |
Not required for reminder. |
|
30 September 2015 |
The Contractor was reminded to increase the frequency of water spraying
on haul road in upcoming dry season. |
Not required for reminder. |
The Contractor was reminded to provide movable noise barriers around the
piling work areas to reduce the noise impact to the surrounding noise
sensitive receivers. |
Not required for reminder. |
8.2.9
Overall, general housekeeping such as daily
site tidiness and cleaniness should be
maintained for all Contracts. Furthermore, the Contractors were
reminded to implement Waste Management Plan of the Project.
Other Contracts
8.2.10
Since the construction works at the Contract
4, Contract 6 and Contract 7 have not yet been commenced, no site inspection is
performed for these Contracts.
9.1.1
In
the Reporting Period, no environmental complaints, summons and prosecution
under the EM&A Programme was lodged.
9.1.2
The statistical summary table of
environmental complaint is presented in Tables
9-1, 9-2 and 9-3.
Table 9-1 Statistical
Summary of Environmental Complaints
Reporting Period |
Contract No |
Environmental
Complaint Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 Aug 2015 |
Contract 2 |
0 |
13 |
(6) Water Quality (5) Construction Dust (2) Noise |
06 Nov 2013 ¡V 31 Aug 2015 |
Contract 3 |
0 |
3 |
(1) Construction Dust (2) Water quality |
16 Aug 2013 ¡V 31 Aug 2015 |
Contract 5 |
0 |
2 |
(2) Construction Dust |
1 ¡V 30 Sep 2015 |
Contract 2 |
0 |
13 |
(6) Water Quality (5) Construction Dust (2) Noise |
Contract 3 |
0 |
3 |
(1) Construction Dust (2) Water quality |
|
Contract 5 |
0 |
2 |
(2) Construction Dust |
|
Contract SS C505 |
0 |
0 |
N/A |
Table 9-2 Statistical
Summary of Environmental Summons
Reporting Period |
Contract No |
Environmental
Summons Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 Aug 2015 |
Contract 2 |
0 |
0 |
NA |
06 Nov 2013 ¡V 31 Aug 2015 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 Aug 2015 |
Contract 5 |
0 |
0 |
NA |
1 ¡V 30 Sep 2015 |
Contract 2 |
0 |
0 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 5 |
0 |
0 |
NA |
|
Contract SS C505 |
0 |
0 |
NA |
Table 9-3 Statistical
Summary of Environmental Prosecution
Reporting Period |
Contract No |
Environmental
Prosecution Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 Aug 2015 |
Contract 2 |
0 |
0 |
NA |
06 Nov 2013 ¡V 31 Aug 2015 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 Aug 2015 |
Contract 5 |
0 |
0 |
NA |
1 ¡V 30 Sep 2015 |
Contract 2 |
0 |
0 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 5 |
0 |
0 |
NA |
|
Contract SS C505 |
0 |
0 |
NA |
The Other Contracts
9.1.3
Since the construction works at the Contract
4, Contract 6 and Contact 7 have not yet commenced, no environmental complaint, summons
and prosecution under the EM&A Programme are registered in the Reporting
Period.
10.1.1
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.
10.1.2
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, 5 and Contract SS C505 in this
Reporting Period are summarized in Table 10-1.
Table 10-1 Environmental
Mitigation Measures
Issues |
Environmental
Mitigation Measures |
Water Quality |
¡P Wastewater to be treated by the
wastewater treatment facilities i.e. sedimentation tank or AquaSed before
discharge. |
Air Quality |
¡P Maintain damp / wet surface
on access road ¡P Keep slow speed in the sites ¡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. |
10.2.1
Construction activities as undertaken in the
coming month for the Project lists below:
Contract 2
Mid-Vent Portal |
Adit invert slab
Cavern excavation Ventilation
Building foundation works |
North Portal |
Permanent slope and hydroseeding
South Bound invert grouting and noise door
installation
North Bound noise door installation
North Bound top heading canopies
TBM sliding to face
Associated equipment installation for
operation of TBM (mortar plant, cooling system etc.)
TBM initial drive |
South Portal |
Rock Excavation to Vent. Bldg. Formation
Southbound excavation foundation works
Northbound excavation and bored piles works
Drill and blast set up and site
installation
Installation of blast door for Southbound
and Northbound tunnel |
Admin Building |
Removal of
surcharge
Upgrade
wheel-washing facilities
Drainage
works |
Contract 3
Cable detection and trial trenches
Decking construction for Bridge E
E&M work for new valve control &
Telemetry House
Filling works at Tong Hang East
Storm Drains Laying
Noise barrier construction
Pier / Pier Table construction
Pile cap works
Portal beam erection
Pre-drilling works and piling works for
viaduct
Retaining Wall construction
Road works at Fanling Highway
Slope works
Socket H-pile installation
Tree felling works
Utilities duct laying
Viaduct segment erection
Construction of temporary steel ramp for Kiu Tau Footbridge
Demolition of existing ramp of Kiu Tau Footbridge
Contract 5
Laying of additional rising main at LMH road
Bituminous laying at
proposed and existing LMH road.
Construction of secondary boundary fencing
Construction
of Temporary Secondary Boundary Fencing
Brick laying at footpath of proposed LMH road
Road works (kerb
laying) for proposed LMH road and existing LMH road
Formation works at BCP area
Construction of access road (RS4)
Construction of Depressed Road at BCP3
Filling work for ArchSD permanent office
Drainage works at exiting LMH Road
Water works at proposed LMH Road
Irrigation system at proposed and existing
LMH Road
Drainage
works at BCP area
Installation
of Underground utilities at proposed and existing LMH Road
Re-construction
of Pavilion at Chung Yuen Ha Village
Contract
SS C505
Excavation & fill works
Predrilling
Percussive piling
Pile caps
Site office set-up
Structural
works
10.3.1
Key issues to be considered in the coming
month for Contracts 2, 3, 5,6 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
10.3.2
Contract 4, Contract 6 and Contact 7 have not
yet commenced and no environmental issue is presented.
11.1.1
This is 26th
monthly EM&A report presenting the monitoring results and inspection
findings for the Reporting Period from 1 to 30 September 2015.
11.1.2
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.
11.1.3
No noise complaint (which is an Action Level
exceedance) was received and no construction noise measurement results that
exceeded the Limit Level were recorded in the Reporting Period. No NOEs or the associated corrective actions were therefore
issued.
11.1.4
For water quality monitoring, total of eight
(8) Action/ Limit Level exceedances, namely two (2) Action Level exceedances of
turbidity and three (3) exceedances Action/ Limit Level of suspended solids recorded
at WM1 and two (2) exceedances of turbidity and one (1) exceedance of suspended
solids recorded at WM4. The
investigations for the cause of exceedances were in progress.
11.1.5
No notification of summons or successful
prosecution under the EM&A Programme of the Project was received in the
reporting period for Contract 2, 3, 5 and SS C505.
11.1.6
No environmental complaint under the EM&A
Programme of the Project was received in the reporting period for Contract 2,
3, 5 and SS C505.
11.1.7
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, 5 and SS C505 in accordance with the EM&A
Manual stipulation. No
non-compliance observed during the site inspection.
11.2.1
As dry season is
approaching, special attention should be paid on the potential construction
dust impact since most of the construction sites are adjacent to villages. The
Contractor should fully implement the construction dust mitigation measures
properly.
11.2.2
The Contractor was also
reminded to prevent muddy water or other water pollutants from site surface flow
to local stream such as Kong Yiu Channel and Ma Wat Channel or public area. Water quality mitigation measures to
prevent surface runoff into nearby water bodies or public areas should paid
attention and fully implemented.
11.2.3
Construction noise
should be a key environmental impact during the works. The noise mitigation measures such as
use of quiet plants or temporary noise barrier installation at the construction
noise predominate area should be implemented as accordance with the EM&A
requirement.
11.2.4
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.