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Job No.: TCS00670/13 |
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Agreement No. CE 45/2008
(CE) Liantang/Heung Yuen Wai Boundary Control Point
and Associated Works |
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Monthly Environmental Monitoring and Audit Report (No.21)
¡V April 2015 |
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Prepared For |
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Civil Engineering and Development Department (CEDD) |
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Date |
Reference No. |
Prepared By |
Certified By |
13
May 2015 |
TCS00670/13/600/R0369v2 |
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Nicola Hon (Environmental Consultant) |
Tam Tak Wing (Environmental Team Leader) |
Version |
Date |
Remarks |
1 |
8 May 2015 |
First
Submission |
2 |
13 May 2015 |
Amended
according to the IEC¡¦s comments on 11 May 2015 |
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executive summary
ES01
This is the 21th monthly EM&A report presenting the monitoring
results and inspection findings for the reporting period from 1 to 30 April 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 five CEDD contracts including
Contract 2 (CV/2012/08), Contract 3 (CV/2012/09), Contract 4 (TCSS), Contract 5
(CV/2013/03) and Contract 6 (CV/2013/08).
ES03
Currently, the construction works has been
undertaken for Contract 2, Contract 3 and Contract 5. 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 |
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Number of Monitoring
Locations to undertake |
Total Occasions |
||
Air Quality |
1-hour TSP |
6 |
102 |
24-hour TSP |
6 |
30 |
|
Construction Noise |
Leq(30min) Daytime |
8 |
40 |
Water Quality |
Water sampling |
3 (Contract 2&3) |
13(*) |
2 (Contract 5) |
11(*) |
||
Joint Site Inspection / Audit |
IEC, ET, the Contractor and RE joint site Environmental Inspection and
Auditing |
Contract 2 |
5 |
Contract 3 |
4 |
||
Contract 5 |
5 |
(*) Monitoring day
Breach of Action and Limit (A/L) Levels
ES04
In the Reporting Period, no noise exceedance was
registered for the Project. However,
1 Limit Level exceedance of 24-hour for air quality exceedance was recorded at
AM3 and a total of thirteen (13) water quality exceedances were recorded at W1
and W4. 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 |
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Air Quality |
1-hour TSP |
0 |
0 |
0 |
-- |
-- |
24-hour TSP |
0 |
1 |
1 |
Not project related |
N/A |
|
Construction Noise |
Leq(30min) Daytime |
0 |
0 |
0 |
-- |
-- |
Water Quality |
DO |
0 |
7 |
7 |
All exceedances were not project related |
N/A |
Turbidity |
0 |
3 |
3 |
All exceedances were not project related |
N/A |
|
SS |
0 |
3 |
3 |
All exceedances were not project related |
N/A |
Environmental
Complaint
ES05
In this Reporting Period, no environmental
complaint in relation to the EM&A Programme was
recorded.
Notification of Summons and Successful Prosecutions
ES06
No environmental summons or successful
prosecutions were recorded in the Reporting Period.
ES07
No reporting changes were made in the
Reporting Period.
ES08
In this Reporting Period, joint site inspection to evaluate the site
environmental performance at Contract 2 has been carried out by
the RE, IEC, ET and the Contractor on 1, 10, 17, 24 and 29 April 2015. No
non-compliance was noted.
ES09
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
3 has been carried out by the RE, IEC, ET and the Contractor on 8, 15, 20 and 27 April 2015. No
non-compliance was noted.
ES10
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,
9, 16, 23 and 30 April 2015. No non-compliance was noted.
Future Key Issues
ES11
During raining season, 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 will be key environment issue. Water
quality mitigation measures to prevent surface runoff into nearby water bodies
or public areas should paid attention and fully implement.
ES12
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.
ES13
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 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 21st
monthly EM&A report presenting the monitoring results and inspection
findings for reporting period from 1 to 30 April 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 (TCSS)
¡P
Contract 5 (CV/2013/03)
¡P
Contract 6 (CV/2013/08)
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 (Contract number to be
assigned)
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 is still yet awarded. 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.
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.
Environmental
Protection Department (EPD)
2.2.3
EPD is the statutory enforcement body for
environmental protection matters in Hong Kong.
Engineer
or Engineers Representative (ER)
2.2.4
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)
2.2.5
There will be one contractor for each
individual works contract. The Contractor(s)
should report to the ER. 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)
2.2.6
One ET will be employed for this
Project. 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 lEC and Contractor(s) 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)
2.2.7
One IEC will be employed for this
Project. The Independent
Environmental Checker (IEC) should not be in any way an associated body of the
Contractor(s) 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
duty of IEC should be:
¡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
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, ET, lEC and the
Contractor(s) 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
(Environmental Permit EP-430/2011);
(b)
Building works and road works by contractors
of Architectural Services Department (ArchSD)
(Environmental Permit EP-404/2011/B);
(c)
Widening of Fanling
Highway ¡V Tai Hang to Wo Hop Shek
Interchange ¡V Contract No. HY/2012/06;
(d)
Construction of cross-boundary vehicular and
pedestrian bridges (total 5 numbers) across the Shenzhen River; and
(e)
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
and 5 and they are summarized in below.
Moreover, the 3-month rolling construction program of the Contracts 2, 3
and 5 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 |
Tunnel excavation |
North Portal |
Permanent slope formation (soil nailing
works) |
Conveyor
Belt System Construction for Tunnel Boring Machine (TBM) |
|
South Bound Tunnel Bench excavation |
|
North Bound Top heading excavation (canopies) |
|
TBM onsite assembly + testing and
commissioning |
|
MS (water treatment system) testing and
commissioning |
|
South Portal |
Temporary Slope Cut with Soil Nails
Installation |
2nd Wetsep
Delivery + testing and commissioning |
|
Admin Building |
Backfilling for surcharge
Drainage works
Site hoarding |
|
Contract 3 (CV/2012/09)
2.4.3
The Contract commenced in November 2013. In this Reporting Period, construction
activities conducted are listed below:
Abutment
construction for Bridge E
Cable
detection and trial trenches
Catch fence
erection
Demolition
of central divider at Fanling Highway
E&M
work for new valve control & Telemetry House
Erection
of temporary support at DSD nullah for Bridge E
Filling
works at Tong Hang East
Lagging
wall for bored pile wall
Laying
storm drains
Noise
barrier construction
Pier
construction
Pier table
construction
Pile cap
works
Pile works
Pre-drilling
works
Road works
at Fanling Highway
Sewer
works at Tai Wo Service Road West (TWSRW)
Tree
felling works
Utilities
duct laying
Waterworks
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:
Laying
additional rising mains at LMH road
Construction
of secondary boundary fencing
Construction
of Depressed Road at BCP3
Construction
of retaining wall No.2a
Waterproofing
and backfilling works for Western pedestrian subway & staircase at LMH
Parapet
installation at Bridge J
Construction
of chain link fence and trapezoidal channel at BCPA
Drainage
works at existing/proposed LMH Road
Drainage
works (Connection to Box 3, Box 4 & construction of sedimentation tank) at
BCP Area
Water
works 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 LMH road
Contract 6 (CV/2013/08)
2.4.6
The contract has not yet been awarded.
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 and 5
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
and 5
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
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 |
|
Contract 2 |
|||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref No.: 368864 |
31 Dec 2013 |
2 |
Chemical Waste Producer Registration |
North Portal Waste
Producers Number: No. 5213-652-D2523-01 |
Valid from 25 Mar 2014 |
Mid-Vent Portal Waste
Producers Number: No. 5213-634-D2524-01 |
Valid from 25 Mar 2014 |
||
South Portal Waste
Producers Number: No. 5213-634-D2526-01 |
Valid from 9 Apr 2014 |
||
3 |
Water Pollution Control Ordinance - Discharge License |
No.WT00018374-2014 |
Valid from 3 Mar 2014 to 28 Feb 2019 |
No.: W5/1I389 |
Valid from 28 Mar 2014 to 31 Mar
2019 |
||
No.: W5/1I390 |
Valid from 24 Mar 2014 to 31 Mar
2019 |
||
No.: W5/1I391 |
Valid from 28 Mar 2014 to 31 Mar
2019 |
||
No.: W5/1I392 |
Valid from 28 Mar 2014 to 31 Mar
2019 |
||
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7019105 |
Valid from 8 Jan 2014 |
5 |
Construction Noise Permit |
GW-RN0693-14 |
Valid 11 Nov 2014 - 10 May 2015 |
GW-RN0092-15 |
Valid 23 Feb 2015 - 22 May 2015 |
||
GW-RN0091-15 |
Valid 23 Feb 2015 - 22 May 2015 |
||
GW-RN0778-14 |
Valid 29 Dec 2014 - 28 Jun 2015 |
||
GW-RN0087-15 |
Valid 23 Feb 2015 - 22 May 2015 |
||
GW-RN0195-15 |
Valid 30 Mar 2015 - 30 May 2015 |
||
Contract 3 |
|||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 362101 |
Notification
received by EPD on 17 Jul 2013 |
2 |
Chemical Waste Producer Registration |
Waste Producers Number:
No.:5113-634-C3817-01 |
Valid
form 7 Oct 2013 till the end of Contract |
3 |
Water Pollution Control Ordinance - Discharge License |
No.:WT00016832 ¡V 2013 |
Valid
from 28 Aug 13 to 31 Aug 2018 |
4 |
Waste Disposal Regulation - Billing Account for Disposal
of Construction Waste |
Account No. 7017914 |
Valid
form 2 Aug 13 till the end of Contract |
5 |
Construction Noise Permit |
GW-RN0684-14 |
Valid on 16 Nov 2014 till 26 Apr
2015 |
GW-RN0095-15 |
Valid on 24 Feb 2015 till 18 Jul 2015 |
||
GW-RN0129-15 |
Valid on 3 Mar 2015 till 30 May 2015 |
||
GW-RN0120-15 |
Valid on 8 Mar 2015 till 1 Jul 2015 |
||
GW-RN0230-15 |
Valid on 15 Apr 2015 till 14 Oct 2015 |
||
Contract 5 |
|||
1 |
Air pollution Control (Construction Dust) Regulation |
Ref. No: 359338 |
Notified EPD on 13 May 2013 |
2 |
Chemical Waste Producer Registration |
Waste Producers Number No.:
5213-642-S3735-01 |
Valid form 8 Jun 2013 till
the end of Contract |
3 |
Water Pollution Control Ordinance - Discharge License |
No.: W5/1G44/1 |
Valid from 8 Jun 13 to 30
Jun 2018 |
4 |
Waste Disposal Regulation - Billing Account for
Disposal of Construction Waste |
Account No. 7017351 |
Valid form 29 Apr 13 till
the end of Contract |
5 |
Construction Noise Permit |
NA |
NA |
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 |
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 |
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 |
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 |
Contract 5 |
WM1- Control |
Upstream of Kong Yiu Channel |
834 185 |
845 917 |
NA |
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 6 |
WM3- Control |
Upstream of River Indus |
836 763 |
842 400 |
Alternative location located at downstream 26m of the designated
location |
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 |
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 |
Portable Wind Speed Indicator |
Testo Anemometer |
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 6820/650MDS / YSI PRO20
Handheld Dissolved Oxygen Instrument / YSI 550A Multifunctional Meter |
pH meter |
YSI Professional Plus / YSI 6820/650MDS / AZ8685 pH pen-style
meter |
Turbidimeter |
YSI Professional Plus / YSI 6820/650MDS / Hach 2100Q |
Sample Container |
High density polythene bottles (provided by laboratory) |
Storage
Container |
¡¥Willow¡¦
33-liter plastic cool box with Ice pad |
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 or YSI 550A Multifunctional
Meter 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 and 5 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 30
events of 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 |
||
8-Apr-15 |
61
|
1-Apr-15 |
10:25 |
82 |
72 |
59 |
14-Apr-15 |
82
|
9-Apr-15 |
14:24 |
255 |
248 |
216 |
20-Apr-15 |
50
|
13-Apr-15 |
11:18 |
116 |
106 |
108 |
25-Apr-15 |
68
|
18-Apr-15 |
12:36 |
68 |
66 |
69 |
30-Apr-15 |
59 |
24-Apr-15 |
10:49 |
139 |
81 |
93 |
|
29-Apr-15 |
10:50 |
98 |
84 |
98 |
|
Average (Range) |
64 (50-82) |
Average (Range) |
114 (59 ¡V 255) |
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 |
||
8-Apr-15 |
103
|
1-Apr-15 |
10:18 |
75 |
64 |
54 |
14-Apr-15 |
139
|
9-Apr-15 |
14:13 |
238 |
233 |
246 |
22-Apr-15# |
83
|
13-Apr-15 |
11:00 |
105 |
95 |
95 |
25-Apr-15 |
142
|
18-Apr-15 |
12:56 |
55 |
64 |
78 |
30-Apr-15 |
101 |
24-Apr-15 |
10:33 |
120 |
82 |
67 |
|
29-Apr-15 |
10:39 |
110 |
104 |
124 |
|
Average (Range) |
114 (83-142) |
Average (Range) |
112 (54 ¡V 246) |
Remark: monitoring was changed from 20 Apr 2015
to 22 Apr 2015 due to power failure.
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 |
||
8-Apr-15 |
90
|
1-Apr-15 |
10:01 |
76 |
65 |
51 |
14-Apr-15 |
519 |
9-Apr-15 |
14:02 |
223 |
247 |
232 |
20-Apr-15 |
85
|
13-Apr-15 |
10:56 |
133 |
109 |
141 |
25-Apr-15 |
67
|
18-Apr-15 |
12:58 |
65 |
60 |
74 |
30-Apr-15 |
61 |
24-Apr-15 |
10:24 |
131 |
87 |
74 |
|
29-Apr-15 |
10:31 |
86 |
71 |
62 |
|
Average (Range) |
164 (64-519) |
Average (Range) |
110 (51 ¡V 247) |
Remark: bold and underline value
indicated Limit Level exceedance.
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 |
||
8-Apr-15 |
74
|
8-Apr-15 |
13:50 |
55 |
45 |
47 |
14-Apr-15 |
132
|
14-Apr-15 |
9:58 |
43 |
43 |
58 |
20-Apr-15 |
85
|
20-Apr-15 |
10:47 |
103 |
90 |
91 |
25-Apr-15 |
129
|
25-Apr-15 |
10:03 |
106 |
115 |
107 |
30-Apr-15 |
113 |
30-Apr-15 |
10:12 |
96 |
78 |
83 |
Average (Range) |
107 (73-132) |
Average (Range) |
77 (43 ¡V 115) |
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 |
||
8-Apr-15 |
60
|
8-Apr-15 |
14:12 |
69 |
52 |
72 |
14-Apr-15 |
95
|
14-Apr-15 |
10:34 |
49 |
50 |
52 |
20-Apr-15 |
55
|
20-Apr-15 |
10:59 |
91 |
81 |
81 |
25-Apr-15 |
59
|
25-Apr-15 |
10:34 |
95 |
109 |
92 |
30-Apr-15 |
53 |
30-Apr-15 |
10:20 |
124 |
86 |
90 |
Average (Range) |
64 (53-95) |
Average (Range) |
80 (49 ¡V 124) |
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 |
||
8-Apr-15 |
78
|
1-Apr-15 |
09:40 |
121 |
114 |
107 |
14-Apr-15 |
118
|
9-Apr-15 |
09:56 |
163 |
143 |
123 |
20-Apr-15 |
49
|
13-Apr-15 |
10:04 |
119 |
104 |
94 |
25-Apr-15 |
75
|
18-Apr-15 |
12:53 |
61 |
55 |
57 |
30-Apr-15 |
52 |
24-Apr-15 |
09:52 |
87 |
72 |
67 |
|
29-Apr-15 |
10:00 |
84 |
64 |
57 |
|
Average (Range) |
74 (52-118) |
Average (Range) |
94 (55 - 163) |
4.2.2
As shown in Tables 4-1 to 4-6, all
the 1-hour TSP monitoring results were below the Action/Limit Levels. However, one Limit Level exceedance of
24-hour TSP was recorded at AM3 on 14 April 2015. Notification of Exceedance (NOE) was
issued to relevant parties upon confirmation of the monitoring result. The investigation for cause of
exceedance has been completed and the result is presented in below.
4.2.3
According to the information provided by the
Contractor (SRJV), the active construction activities on 14 April 2015 were
conducted at the BCP area which about 400m away from AM3 and the works area in
Lin Ma Hang Road which close to AM3 was idled.
4.2.4
During the course of monitoring on 14 April
2015, it was observed that a covered soil stockpile was placed next to the HVS
at AM3 and this stockpile was not belonged to the SRJV. As reported by our
monitoring team and SRJV, construction of concrete slab for flag post was
carried out right next to AM3 by other contractor in mid-April 2015. On the other hand, no construction
activities were observed for SRJV near AM3 and the adjoined Lin Ma Hang Road.
4.2.5
During regular weekly site inspection by ET
in April 2015, it was noted that the works area near AM3 and the adjoined Lin
Ma Hang Road was idled. Water
bowser was arranged daily on the Lin Ma Hang Road as dust suppresser measures
and the road surface was wetted.
4.2.6
During site inspection on 30 April 2015, it
was noted that the stockpile was removed but some construction waste was stored
near AM3 by other contractor. There
were no exceedances recorded in the subsequent 24-hour TSP monitoring results
on 20 and 25 April 2015. Based on the above investigation, it is concluded that
the exceedance was likely due to the works by other contractor and not related
to the construction activities under Contract 5
4.2.7
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 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 40 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 |
9-Apr-15 |
54 |
59 |
58 |
58 |
64 |
8-Apr-15 |
61 |
60 |
62 |
13-Apr-15 |
56 |
59 |
57 |
58 |
65 |
14-Apr-15 |
59 |
60 |
62 |
18-Apr-15 |
56 |
60 |
60 |
59 |
71 |
20-Apr-15 |
52 |
60 |
63 |
24-Apr-15 |
54 |
56 |
58 |
61 |
65 |
25-Apr-15 |
52 |
60 |
54 |
29-Apr-15 |
51 |
59 |
58 |
55 |
58 |
30-Apr-15 |
52 |
61 |
66 |
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 and 5 and 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, construction work
was carried out at South Portal of Contract 2 during public holiday between 3
to 7 April 2015 and therefore there were thirteen
(13) sampling days for at the
related water monitoring location WM4, WM4-Control A
& WM4-Control B. For WM1 and
WM1-Control, eleven (11) sampling
days of water quality monitoring was conducted
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 |
|
1-Apr-15 |
2.60 |
5.81 |
2.71 |
5.90 |
5.72 |
6.71 |
5.5 |
7.0 |
7.5 |
3-Apr-15 |
2.21 |
4.60 |
1.74 |
7.46 |
6.00 |
5.88 |
6.0 |
3.0 |
3.0 |
6-Apr-15 |
2.32 |
4.98 |
1.61 |
5.82 |
4.14 |
5.48 |
12.5 |
3.5 |
4.0 |
9-Apr-15 |
4.92 |
5.24 |
2.05 |
13.55 |
7.39 |
9.83 |
12.5 |
7.0 |
4.5 |
11-Apr-15 |
5.91 |
5.34 |
4.52 |
31.20 |
13.80 |
17.80 |
30.0 |
11.5 |
10.5 |
13-Apr-15 |
5.06 |
6.68 |
2.93 |
10.85 |
4.71 |
7.65 |
9.5 |
4.5 |
6.0 |
16-Apr-15 |
6.41 |
7.05 |
4.66 |
19.10 |
5.84 |
6.64 |
24.0 |
8.5 |
6.0 |
18-Apr-15 |
4.68 |
5.07 |
1.93 |
18.90 |
5.68 |
8.70 |
23.5 |
4.0 |
8.0 |
20-Apr-15 |
4.76 |
5.36 |
3.85 |
13.45 |
3.30 |
7.15 |
19.5 |
2.0 |
10.0 |
22-Apr-15 |
4.15 |
6.13 |
2.53 |
11.50 |
4.59 |
7.21 |
19.5 |
2.0 |
10.0 |
24-Apr-15 |
4.29 |
7.01 |
4.65 |
11.35 |
2.91 |
10.40 |
15.0 |
3.0 |
9.0 |
27-Apr-15 |
3.38 |
3.88 |
1.13 |
10.30 |
5.01 |
5.55 |
10.5 |
5.0 |
6.0 |
29-Apr-15 |
3.62 |
3.16 |
1.06 |
9.55 |
4.62 |
6.49 |
16.0 |
4.5 |
8.5 |
Remark: bold and underline value
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 |
|
#1-Apr-15 |
3.41 |
6.26 |
28.3 |
12.6 |
26.0 |
10.0 |
#9-Apr-15 |
1.61 |
4.55 |
116.5 |
195.5 |
76.5 |
93.0 |
11-Apr-15 |
6.84 |
8.21 |
605.5 |
864.5 |
263.0 |
374.5 |
#13-Apr-15 |
2.04 |
3.38 |
161.0 |
94.1 |
100.0 |
51.5 |
16-Apr-15 |
6.28 |
5.97 |
47.8 |
84.8 |
44.5 |
56.0 |
18-Apr-15 |
8.00 |
4.54 |
82.6 |
53.9 |
83.0 |
42.5 |
20-Apr-15 |
2.72 |
6.40 |
183.0 |
39.7 |
174.0 |
31.0 |
22-Apr-15 |
2.72 |
5.63 |
187.0 |
34.6 |
174.0 |
28.0 |
#24-Apr-15 |
6.01 |
6.60 |
97.5 |
34.8 |
104.0 |
21.0 |
#27-Apr-15 |
6.64 |
7.74 |
94.5 |
58.2 |
63.5 |
45.0 |
#29-Apr-15 |
7.86 |
6.72 |
45.1 |
33.0 |
17.0 |
24.0 |
Remark:
i.
bold and underlined indicated Limit Level
exceedance.
ii.
bold and italic
indicated Action Level exceedance
# water
sampling was not able to carry out due to shallow water and water monitoring
was conducted at box culvert 2 downstream for reference
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 |
2 |
0 |
3 |
0 |
3 |
0 |
8 |
WM4 |
0 |
5 |
0 |
0 |
0 |
0 |
0 |
5 |
No of Exceedance |
0 |
7 |
0 |
3 |
0 |
3 |
0 |
13 |
6.2.3
During water monitoring on 1, 9, 13, 24, 27
and 29 April 2015, very shallow water was observed at the proposed water
monitoring location and water sampling at WM1 was unable to carry out. To avoid
missing of monitoring data, water sampling was carried out near the box culvert
2 at close downstream and the data is served as reference only.
6.2.4
In this Reporting Period, there were five (5)
exceedances of DO on 1, 3, 6, 27 and 29 April 2015 recorded at WM4. For WM1, a total of eight (8) Limit
Level exceedances were recorded, namely two (2) Limit Level exceedance of DO on
20 and 22 April 2015 and three (3) Limit Level exceedance of turbidity and SS on
18, 20 and 22 April 2015.
6.2.5
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 DO Exceedance at WM1 on 20 and 22 April 2015
6.2.6
According to the site information provided by
the Contractor, formation work at BCPB, construction of retaining wall No.2a
and construction of depressed road at BCP3 were conducted during 20 to 22 April
2015. The active construction works
were located at far upstream of WM1 and these construction activities did not
disturb the water body and no water discharge was made into the existing
channel.
6.2.7
During of the water monitoring on 20 and 22
April 2015, large amount of algae growth was observed throughout the Kong Yiu channel especially at close upstream of WM1 during the
exceedance day. Moreover, very slow water flow was observed near WM1 and the
water was stagnant at a box culvert at downstream.
6.2.8
It is considered that large amount of algae
growing in the water body as well as slow water flow were the major factor
resulting to low DO level. Based on
above investigation, it is concluded that the DO exceedances during 20 and 22
April 2015 were not related to the project.
Investigation Result
for turbidity and SS Exceedance at WM1 on 18, 20 and 22 April 2015
6.2.9
According to the site information provided by
the Contractor, formation work at BCPB, construction of retaining wall No.2a
and construction of depressed road at BCP3 were conducted during 18 to 22 April
2015. The active construction works
were located at far upstream of WM1 and these construction activities did not
disturb the water body and no water discharge was made into the existing
channel.
6.2.10
During the water monitoring on 18, 20 and 22
April 2015, very shallow water and slow water flow was observed at WM1.
Moreover, large amount of algae was cumulated at WM1 due to slow water flow.
Due to shallow water and presence of algae, the water sample collected at WM1
included the mixture of water and tiny pieces of algae.
6.2.11
In view of the unavoidable algae in the water
sample, it is concluded that the turbidity and SS exceedances during 18 and 22
April 2015 were not related to the project.
Investigation Result
for DO Exceedance at WM4 on 1, 3 and 6 April 2015 (Contract 2)
6.2.12
Site information was obtained from the
Contractor of C2 (DHK), construction activities carried out at South Portal on
1, 3 and 6 April 2015 included site formation, hoarding erection, construction
of site office and slope stabilization.
All works were carried out far from the river course and discharge was
only made on 1 April 2015.
6.2.13
As advised by DHK, visual checking for
discharge quality will be carried out when there is discharge needs to be
made. According to the
self-checking result on 1 April 2015, the water quality performance was satisfactory.
There were no discharge made on 3 and 6 April 2015, thus no test was carried
out.
6.2.14
During weekly site inspection by the ET on 1
April 2015, it was observed the wastewater generated from works was treated by
the onsite wastewater treatment system and treated water was recycled for
further use such as wheel washing.
No adverse impact on water quality was observed on 1 April 2015.
6.2.15
According to the photo record provided by the
other party on 1 April 2015, muddy water flowed from outside site boundary was
observed. The muddy water deteriorated the existing stream water and affected
the water quality at the downstream.
6.2.16
Moreover, low DO levels were recorded at
upstream control station WM4-CB during the exceedance days. It is considered
that the exceedances were likely due to natural variation and not related to
the works under Contract 2.
Investigation Result
for DO Exceedance at WM4 on 1, 3 and 6 April 2015 (Contract 3)
6.2.17
There was site closed during 3 to 7 April
2015 and site information was obtained from the Contractor on 1 April 2015 only
in this investigation. According to
the site dairy provided by the Contractor, construction works carried out on 1
April 2015 included excavation, backfilling, concreting, erect of formwork and
welding. These works did not disturb the water environment and comprised none
of DO depleting characteristics.
6.2.18
Daily inspection for wastewater treatment
facilities within the site area was conducted by the Contractor, when there is
water discharge observed, visual test would be carried
out to check the performance of discharge and the surrounding environment. According to the inspection record on 1
April 2015, muddy water flowed from outside site boundary was observed near WWTS
NO.9. The external muddy water deteriorated the existing stream water and
affected the water quality at the downstream. Moreover, low DO levels were recorded at
upstream control station WM4-CB during the exceedance days as well.
6.2.19
It was noted that exceedance of DO was
recorded at WM4 even the site was closed on 3 and 6 April 2015. Therefore, it is considered that the
exceedances during 1, 3 and 6 April 2015 were likely due to natural variation
and not related to the works under Contract 3.
Investigation Result
for DO Exceedance at WM4 on 27 and 29 April 2015 (Contract 2)
6.2.20
According to the site information provided
from the Contractor of C2 (DHK), construction activities carried out at South
Portal on 27 and 29 April 2015 included tunnel excavation, spoil
transportation, slope stabilization and construction of site office. All works were far from the river and no
discharges were made on 27 and 29 April 2015.
6.2.21
During weekly site inspection by the ET on 29
April 2015, it was observed that the wastewater generated from works was
treated by the onsite wastewater treatment system and treated water was
recycled for further use such as wheel washing. No adverse impact on water quality was
observed on 29 April 2015.
6.2.22
According to the photo record provided by the
other party on 27 and 29 April 2015, muddy water flowed from outside site
boundary was observed. The muddy water may deteriorate the existing stream
water and affecting the water quality at the downstream.
6.2.23
Moreover, lower DO levels were recorded at
upstream control station WM4-CB on 27 and 29 April 2015 as well. It is
considered that the exceedances were likely due to natural variation and not
related to the works under Contract 2
.Investigation
Result for DO Exceedance at WM4 on 27 and 29 April 2015 (Contract 3)
6.2.24
According to the site diaries provided by the
Contractor, construction works carried out on 27 and 29 April 2015 included
excavation, installation and uninstallation of sheet pile, erecting of
formwork, welding, concreting and soil compact. The abovementioned works were
carried out away from the watercourse and comprised none of DO depleting
characteristics.
6.2.25
Inspection of the wastewater treatment
facilities and the surrounding environment was conducted by the Contractor on
27 and 29 April 2015. Water sample
was collected at the discharge point for visual test in order to check the
performance of discharge. According
to the inspection record on 27 and 29 April 2015, muddy water flowed from
outside site boundary was observed near WWTS NO.9. The external muddy water may deteriorate
the existing stream water and affecting the water quality at the
downstream.
6.2.26
It was also noted that lower DO levels were
recorded at upstream control station WM4-CB on 27 and 29 April 2015. Therefore, it is considered that the
exceedances on 27 and 29 April 2015 were likely due to natural variation and
not related to the works under Contract 3.
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 |
Total Quantity |
|||
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
||
C&D Materials (Inert) (in '000m3) |
49.2330 |
-- |
3.597 |
-- |
0 |
-- |
52.83 |
Reused in this Project (Inert) (in '000 m3) |
0.2770 |
-- |
2.308 |
-- |
0 |
-- |
2.585 |
Reused in other Projects (Inert) (in '000 m3) |
48.7494 |
C5 |
0 |
-- |
0 |
-- |
48.7494 |
Disposal as Public Fill (Inert) (in '000 m3) |
0.2066 |
Tuen Mun 38 |
1.289 |
Tuen Mun 38 |
0 |
-- |
1.4956 |
Table 7-2 Summary
of Quantities of C&D Wastes for the Project
Type of Waste |
Contract 2 |
Contract 3 |
Contract 5 |
Total Quantity |
|||
Quantity |
Disposal Location |
Quantity |
Disposal Location |
Quantity |
Disposal Location |
||
Recycled
Metal (¡¥000kg) # |
0 |
- |
2.767 |
Licensed collector |
0 |
-- |
2.767 |
Recycled
Paper / Cardboard Packing (¡¥000kg) # |
0.2300 |
Licensed collector |
0 |
- |
0 |
-- |
0.2300 |
Recycled Plastic (¡¥000kg) # |
0 |
- |
0 |
- |
0 |
-- |
0 |
Chemical Wastes (¡¥000kg) # |
0 |
- |
0 |
- |
0 |
-- |
0 |
General Refuses (¡¥000m3) |
0.2278 |
NENT |
0.065 |
NENT |
0.04 |
NENT |
0.3328 |
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.
The 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 1, 10, 17, 24 and 29 April 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 |
1 April 2015 |
Stagnant water cumulated inside the pit near the site exit was observed.
The contractor should drain the water away to prevent mosquito breeding.
(Mid-Vent) |
DHK sprayed larvicide to the described location in order to
prevent mosquito breeding. |
Water spraying should be applied for excavating / breaking / drilling
activities to minimize dust generation. (South Portal) |
Not required for
reminder |
|
10 April 2015 |
Oil drums without drip tray was observed. The contractor should provide
drip tray underneath. (Mid-Vent and North Portal) |
The oil drums were removed. |
Stagnant water cumulated inside the lifting eye of the concrete block
was observed. The contractor should be clear the water to prevent mosquito
breeding. (Mid-Vent and South Portal) |
The lifting eyes were filled with
sand. |
|
Stagnant water cumulated inside the drip tray was observed. The
contractor should drain the water away and the waste water should be disposed
as chemical waste. (North Portal) |
Stagnant water removed and provided
with tarpaulin to cover well. |
|
Chemical waste storage inside the chemical storage area was observed.
The contractor should separate storage the chemical and chemical waste.
(South Portal) |
To be followed in next reporting
month. |
|
It was reminded that water spraying should be applied for breaking
activities to reduce dust impact. (South Portal) |
Not required for
reminder |
|
17 April 2015 |
As a reminder, water spraying
frequency should be increase for the haul road to minimize dust generation. (South
Portal & North Portal) |
Not required for
reminder |
24 April 2015 |
Construction material cumulated
inside the tree protection zone was observed. The contractor should remove
the material to prevent damage of the retain tree. (South Portal ) |
The construction material inside the tree protection zone were relocated. The tree protection zone were removed
as the trees inside are felled. |
Broken water barriers was
observed along the site entrence. The contractor should prevent stagnant
water cumulated inside the barrier to cause mosquito breeding. (South Portal ) |
Openings of water barriers are covered to avoid mosquito breeding
inside. |
|
Contractor was reminded to
provide tarpaulin to cover the free standing oil drums to prevent stagnant
water cumulated inside the drip tray. (South Portal ) |
Not required for reminder |
|
29 April 2015 |
Waste skip and rubbish bin was
observed full. The contractor was reminded to clean more frequency. (South
Portal ) |
Not required for
reminder |
The 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 8, 15, 20 and 27 April 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 |
8 April 2015 |
Old
version EP display at the site exit was observed, the Contractor should update
the EP and display at the site exit. |
Updated
EP has been displayed at the site exit. |
15 April 2015 |
C&D
materials next to the retained tree was observed at SA11, the Contractor
should remove the C&D materials and provide protection fence for the retained
tree. |
The
C&D materials was removed and protection fence
was provided. |
Chemical
drums without drip tray was observed at SA11, the Contractor should remove
them and prevent leakage of chemical. |
The
chemical drums without drip tray was removed from site. |
|
The
Contractor was reminded to provide label for all trees within the site area. |
Not
required for reminder. |
|
20 April 2015 |
Oil
stain was observed at Bridge E, the Contractor was reminded to remove the oil
stain and treat properly as chemical waste |
The
oil stain has been cleared up and the stained soil was stored as chemical
waste storage area for proper disposal |
27 April 2015 |
Oil
drum placed above an air compressor was observed at FH9,
the Contractor should remove the oil drum and store it at proper area. |
Not
required for reminder. |
8.2.5
Furthermore, the Contractor
of Contract 3 was reminded to provide water spraying during dusty works, such
as breaking and excavation.
The Contract 5
8.2.6
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, 9, 16, 23 and 30 April 2015. No non-compliance was noted.
8.2.7
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 April 2015 |
Dry haul road at LMH site office was observed,
water spraying should be provided to minimize dust generation. |
Water spraying on the haul road at LMH site office
was provided. |
9 April 2015 |
No environmental issue was
observed during the site inspection. |
NA |
16 April 2015 |
Free standing chemical containers of LMH site
office was observed and leakage was also found. The Contractor should provide
drip tray for chemical container and to remove the oil stain. |
The chemical containers were removed and the oil
stain was cleaned. |
23 April 2015 |
Dusty materials at the site entrance/exit in LMH
site office was observed, the Contractor should ensure that the vehicles are
washed before leaving the site and clean the public road regularly. |
Regular washing on the public road was provided
and no dusty trails were observed. |
As a reminder, the Contractor should review the
condition of their temporary drainage system during the rainy season. |
Not required for reminder |
|
As a reminder, any dusty stockpile should be
covered with impervious sheeting to minimize dust generation. |
Not required for reminder |
|
30 April 2015 |
No environmental issue was
observed during the site inspection. |
NA |
8.2.8
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
8.2.9
Since the construction works at the Contract
4 and Contract 6 have not yet been commenced, no site inspection is performed
for these Contracts.
9.1.1
In the Reporting Period, no environmental
complaint, summons and prosecution under the EM&A Programme
was lodged for Contracts 2, 3 and 5.
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 Mar 2015 |
Contract 2 |
0 |
11 |
(4) Water Quality (5) Construction Dust (2) Noise |
06 Nov 2013 ¡V 31 Mar 2015 |
Contract 3 |
0 |
3 |
(1) Construction Dust (2) Water quality |
16 Aug 2013 ¡V 31 Mar 2015 |
Contract 5 |
0 |
2 |
(2) Construction Dust |
1 ¡V 30 Apr 2015 |
Contract 2 |
0 |
11 |
(4) Water Quality (5) Construction Dust (2) Noise |
Contract 3 |
0 |
3 |
(1) Construction Dust (2) Water quality |
|
Contract 5 |
0 |
2 |
(2) Construction Dust |
Table 9-2 Statistical
Summary of Environmental Summons
Reporting Period |
Contract No |
Environmental
Summons Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
||
19 May 2014 ¡V 31 Mar 2015 |
Contract 2 |
0 |
0 |
NA |
06 Nov 2013 ¡V 31 Mar 2015 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 Mar 2015 |
Contract 5 |
0 |
0 |
NA |
1 ¡V 30 Apr 2015 |
Contract 2 |
0 |
0 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 5 |
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 Mar 2015 |
Contract 2 |
0 |
0 |
NA |
06 Nov 2013 ¡V 31 Mar 2015 |
Contract 3 |
0 |
0 |
NA |
16 Aug 2013 ¡V 31 Mar 2015 |
Contract 5 |
0 |
0 |
NA |
1 ¡V 30 Apr 2015 |
Contract 2 |
0 |
0 |
NA |
Contract 3 |
0 |
0 |
NA |
|
Contract 5 |
0 |
0 |
NA |
The Other Contracts
9.1.3
Since the construction works at the Contract
4 and Contract 6 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 and 5 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 |
Tunnel excavation
Cavern excavation |
North Portal |
Permanent slope formation
Conveyor Belt System Construction for RBM
(remaining)
South Bound Tunnel Bench Excavation
(remaining)
South Bound TBM Tunneling works (sliding to
face, TBM launch, TBM DT)
Slab Cradle for TBM Shifting way
North Bound Top heading excavation
(canopies)
North Bound Tunnel Blast door installation |
South Portal |
Temporary Slope Cut with Soil Nails
Installation
3rd Wetsep
Delivery plus Testing and Commissioning |
Rock
excavation to Ventilation Building Formation
South Bound
Foundation Works
North Bound
Bored Piles Works & Pile tests |
|
Admin Building |
Backfilling
for surcharge
Demolition
of existing building |
Contract 3
Cable detection and trial trenches
Catch fence erection
Decking construction for Bridge E
Diversion of DN1400 watermain
deck construction of Bridge E
E&M work for new valve control &
Telemetry House
Filling works at Tong Hang East
Lagging wall for bored pile wall
Laying storm drains
Noise barrier construction
Pier construction
Pier table construction
Pile cap works
Pre-drilling works and piling works for
viaduct
Road works at Fanling
Highway
Sewer works at Tai Wo Service Road West
(TWSRW)
Socket H-pile load test
Tree felling works
Utilities duct laying
Viaduct segment erection
Waterworks
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 retaining wall no. 2a
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
Installation of precast parapet and vehicular
railing at Bridge J
Construction of Depressed Road at BCP3
Filling work for ArchSD
permanent office
Drainage works at proposed and 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
10.3.1
Key issues to be considered in the coming
month for Contracts 2, 3 and 5 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 and Contract 6 have not yet
commenced and no environmental issue is presented.
11.1.1
This is 21st
monthly EM&A report presenting the monitoring results and inspection
findings for the Reporting Period from 1 to 30 April 2015.
11.1.2
For air quality monitoring, no 1-hour TSP
monitoring results triggered the Action or Limit Levels were recorded but there
was 1 Limit level exceedance of 24-hour TSP recorded at AM3 on 14 April 2015. The investigation for the cause of
exceedance is underway by the ET.
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, there were five
(5) exceedances of DO on 1, 3, 6, 27 and 29 April 2015 recorded at WM4. For WM1, a total of eight (8) Limit
Level exceedances were recorded, namely two (2) Limit Level exceedance of DO on
20 and 22 April 2015 and three (3) Limit Level exceedance of turbidity and SS on
18, 20 and 22 April 2015. The investigation for the cause of exceedance was
completed and submitted to relevant parties.
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 and 5.
11.1.6
No environmental complaint under the EM&A
Programme of the Project was received in the
reporting period for Contract 2, 3 and 5.
11.1.7
During the Reporting Period, five (5), four (4)
and five (5) events of joint site inspection by the RE, IEC, ET with the
relevant Main-contractor were carried out for Contracts 2, 3 and 5 respectively
in accordance with the EM&A Manual stipulation. No non-compliance observed during the
site inspection.
11.2.1
During wet season, muddy water or other water pollutants from site surface runoff into Kong
Yiu Channel and Ma
Wat Channel will be key environment issue. Water
quality mitigation measures to prevent surface runoff into nearby water
bodies and public areas should be paid on
special attention. The
Contractors should fully implement the water quality mitigation measures.
11.2.2
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.
11.2.3
Since most of construction sites under the
Project are adjacent to villages, the contractors should be paid attention on
the construction dust emission. The
Contractor should fully implement the construction dust mitigation measures properly.
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.