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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.1) – August 2013 |
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Prepared For |
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Civil Engineering and Development Department (CEDD) |
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Date |
Reference No. |
Prepared By |
Certified By |
12 September 2013 |
TCS00670/13/600/R0057v2 |
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Ben Tam (Environmental
Consultant) |
Tam Tak Wing (Environmental
Team Leader) |
Version |
Date |
Remarks |
1 |
10 September 2013 |
First Submission |
2 |
12 September 2013 |
Amended against IEC’s
comments on 11 September 2013 |
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executive summary
ES01
Civil Engineering
and Development Department (CEDD) 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 (hereinafter
“the Project”), which is a Designated Project to be implemented under
Environmental Permit number EP-404/2011 (hereinafter
referred as “the EP-404/2011” or “the EP”).
ES02
Action-United Environmental
Services & Consulting (AUES) has been commissioned as the Environmental
Team for the Project (hereinafter referred as “the ET”) to perform relevant
Environmental Monitoring and Audit (EM&A) programme in accordance with the
approved EM&A Manual under Environmental Impact Assessment Ordinance
(EIAO).
ES03
According to the
Approved EM&A Manual, air quality, noise and water quality monitoring are
required to be monitored during the construction phase of the
Project. Baseline monitoring for air quality, noise and water quality was conducted from 13
June 2013 to 12 July 2013. and the Baseline Monitoring Report which verified by the
Independent Environmental Checker (hereinafter referred as “the IEC”) has been submitted
to Environmental Protection Department (EPD)
on 16
July 2013 for endorsement.
ES04
According to Section 5.3 of the EP, the Baseline
Monitoring Report shall be deposited to EPD at least one month before
commencement of the construction of the Project. The construction
of the Project as well as the EM&A Programme in relevant section was
therefore commenced on 16 August 2013 to comply with the EP
and EM&A Manual requirements.
ES05
This is the 1st monthly EM&A report presenting the
monitoring results and inspection findings for the reporting period from 16 to 31 August
2013
(hereinafter ‘the Reporting Period’).
Environmental Monitoring and Audit Activities
ES06
Environmental
monitoring activities under the EM&A programme in the Reporting Period are
summarized in the following table.
Environmental Aspect |
Environmental Monitoring Parameters /
Inspection |
Reporting Period |
|
Number of Monitoring Locations to
undertake |
Total Occasions |
||
Air Quality |
1-hour
TSP |
3 |
27 |
24-hour
TSP |
3 |
9 |
|
Construction Noise |
Leq(30min) Daytime |
2 |
6 |
Water Quality |
Water
sampling |
2 |
7 |
Joint
Site Inspection / Audit |
IEC, ET, the
Contractor and RE joint site Environmental Inspection and
Auditing |
Contract 5 |
2 |
Breach
of Action and Limit (A/L) Levels
ES07
No
exceedances of air quality, construction noise and water quality were
registered in the Reporting Period.
Furthermore, no noise complaints (i.e. Action Level) were received. No Notifications of Exceedances (NOEs) was issued
to the RE, IEC and the Main Contractor.
The statistics of environmental exceedance, NOE issued and investigation
of exceedance are summarized in the following table.
Environmental Aspect |
Monitoring
Parameters |
Action Level |
Limit Level |
Event
& Action |
||
NOE
Issued |
Investigation |
Corrective
Actions |
||||
Air Quality |
1-hour TSP |
0 |
0 |
0 |
0 |
0 |
24-hour TSP |
0 |
0 |
0 |
0 |
0 |
|
Construction
Noise |
Leq(30min)
Daytime |
0 |
0 |
0 |
0 |
0 |
Water Quality |
DO |
0 |
0 |
0 |
0 |
0 |
Turbidity |
0 |
0 |
0 |
0 |
0 |
|
SS |
0 |
0 |
0 |
0 |
0 |
Environmental Complaint
ES08
No public complaints were received by either the RE or CEDD or the Main
Contractor in the Reporting Period.
Notification of
Summons and Successful Prosecutions
ES09
No
environmental summons or successful prosecutions were recorded in the Reporting
Period.
ES10
As
this is the first Monthly EM&A Report, no reporting changes were made in
the Reporting Period.
ES11
Joint site inspection by the RE, IEC, ET and the
Contract 5 main-contractor had carried out on 22
August 2013 and 29 August 2013.
No non-compliance observed during the site inspection.
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
Moreover, special attention should be paid on
the potential construction dust impact since most of the construction sites are
adjacent to villages. The Contractor
should fully implement the construction dust mitigation measures properly.
ES14
In addition, the potential
water quality impact at the nearby rivers should be highly alerted especially
during rainy season from April to October.
The Contractor should prevent muddy water and other water pollutants via
site surface water runoff get into the rivers, water quality mitigation
measures should be properly
implemented.
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 Key
Issues for the Coming Month
11 Conclusions
and Recommentations
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 – AM1
Table 4-2 Summary of 24-hour and 1-hour TSP
Monitoring Results – AM2
Table 4-3 Summary of 24-hour and 1-hour TSP
Monitoring Results – AM3
Table 5-1 Summary of Construction Noise Monitoring
Results
Table 6-1 Summary of Water Quality Monitoring
Results of WM1 and WM1-Control
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 of 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 Master Construction Programme for Contract 5
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.
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 – this section comprises at-grade and
viaducts and includes the improvement works at Lin Ma Hang Road;
2)
Ping Yeung to Wo Keng
Shan – 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 – 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 –
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 – 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 – 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 1st monthly EM&A report presenting the
monitoring results and inspection findings for reporting period from 16 to 31 August 2013.
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:
·
Contract 2
(CV/2012/08)
·
Contract 3
(CV/2012/09)
·
Contract 4
(TCSS)
·
Contract 5
(CV/2013/03)
·
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
The
Contract 2 is predicted to be commenced in May 2013. However, the Contract 2 has not yet awarded
during Reporting Period. Major Scope of
Work of the Contract 2 is listed below:
·
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;
·
construction of a ventilation adit
tunnel and the mid-ventilation building;
·
construction of the north and south portal
buildings of the Lung Shan Tunnel and their associated slope works;
·
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;
·
construction of Tunnel Administration Building
adjacent to Wo Keng Shan
Road and the associated E&M and building services works; and
·
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 3 (CV/2012/09)
2.1.4
The
construction work of Contract 3 has scheduled to be commenced in November
2013. Major Scope of Work of the
Contract 3 is listed below:
·
construction of four link roads connecting the
existing Fanling Highway and the south portal of the Lung Shan Tunnel;
·
realignment of the existing Tai Wo Service Road
West and Tai Wo Service Road East;
·
widening of the existing Fanling
Highway (HyD’s entrustment works);
·
demolishing existing Kiu
Tau vehicular bridge and Kiu Tau footbridge and
reconstruction of the existing Kiu Tau Footbridge (HyD’s entrustment works); and
·
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
The
tentative commencement date of Contract 4 is October 2014. 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
The
Contract 5 has awarded in May 2013 and construction work is commenced in August
2013. Major Scope of Work of the
Contract 5 is listed below:
·
site formation of about 23 hectares of land for the development of the
BCP;
·
construction of an approximately 1.6 km long perimeter road at the BCP
including a 175m long depressed road;
·
associated diversion/modification works at existing local roads and
junctions including Lin Ma Hang Road;
·
construction of pedestrian subway linking the BCP to Lin Ma Hang Road;
·
provision of resite area with supporting
infrastructure for reprovisioning of the affected
village houses; and
·
construction of associated footpath, slopes, retaining
structures, drainage, sewerage, waterworks, landscaping works and other
ancillary works.
Contract 6 (CV/2013/08)
2.1.7
The tentative
commencement date of Contract 6 is the end of 2013. Major Scope of Work of the Contract 6 will 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:
·
Monitor
the Contractors’ compliance with contract specifications, including the
implementation and operation of the environmental mitigation measures and their
effectiveness
·
Monitor
Contractors’s, ET’s and IEC’s compliance with the
requirements in the Environmental Permit (EP) and EM&A Manual
·
Facilitate
ET’s implementation of the EM&A programme
·
Participate
in joint site inspection by the ET and IEC
·
Oversee
the implementation of the agreed Event / Action Plan in the event of any
exceedance
·
Adhere
to the procedures for carrying out complaint investigation
·
Liaison
with DSD, Engineer/Engineer’s Representative, ET, IEC and the Contractor of the
“Construction of the DSD’s 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:
·
Comply
with the relevant contract conditions and specifications on environmental
protection
·
Employ
an Environmental Team (ET) to undertake monitoring, laboratory analysis and
reporting of EM &A Facilitate ET’s monitoring and site inspection
activities
·
Participate
in the site inspections by the ET and IEC, and undertake any corrective actions
·
Provide
information / advice to the ET regarding works programme and activities which
may contribute to the generation of adverse environmental impacts
·
Submit
proposals on mitigation measures in case of exceedances of Action and Limit
levels in accordance with the Event / Action Plans
·
Implement
measures to reduce impact where Action and Limit levels are exceeded
·
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:
·
Monitor
and audit various environmental parameters as required in this EM&A Manual
·
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
·
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
·
Monitor
compliance with conditions in the EP, environmental protection, pollution
prevention and control regulations and contract specifications
·
Audit
environmental conditions on site
·
Report
on the environmental monitoring and audit results to EPD, the ER, the lEC and
Contractor(s) or their delegated representatives
·
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
·
Liaise
with the IEC on all environmental performance matters and timely submit all
relevant EM&A proforma for approval by IEC
·
Advise
the Contractor(s) on environmental improvement, awareness, enhancement measures
etc., on site
·
Adhere
to the procedures for carrying out complaint investigation
·
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:
·
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
·
Review
and audit all aspects of the EM&A programme implemented by the ET
·
Review
and verify the monitoring data and all submissions in connection with the EP
and EM&A Manual submitted by the ET
·
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
·
Check
compliance with the agreed Event / Action Plan in the event of any exceedance
·
Check
compliance with the procedures for carrying out complaint investigation
·
Check
the effectiveness of corrective measures
·
Feedback
audit results to ET by signing off relevant EM&A proforma
·
Check
that the mitigation measures are effectively implemented
·
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
·
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 ArchSD
(Environmental Permit EP-404/2011);
(c)
Widening
of Fanling Highway – Tai Hang to Wo Hop Shek
Interchange – 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 Contract 5 and they are summarized in below. Moreover, the master construction program of
the Contract 5 is enclosed in Appendix C.
Contract 2 (CV/2012/08)
The
contract is still yet awarded
Contract 3 (CV/2012/09)
The
work of construction still yet commenced
Contract 4 (Contract number to be assigned)
The
contract is still yet awarded
Contract 5 (CV/2013/03)
Site
formation works at RS1 & RS3
Environmental
impact monitoring
Construction
of wheel washing bay
Geotechnical
investigation and monitoring works
Tree
felling
Setting
out the site boundary
Condition
survey of existing structures
Demolition
of structures at additional area at Loi Tung
Temporary
widening at LMH road
Underground
utilities detection
Liaise
with various utility undertakers and villagers/Village Representatives
Contract 6 (CV/2013/08)
The
contract is still yet awarded
2.5.1
To according with the EP stipulation, the required documents has
submitted to EPD for retention as listed below:
Project Layout Plans
Vegetation Survey Report
Landscape Plan
Topsoil Management Plan
Environmental Monitoring and Audit Programme
Baseline Monitoring Report (TCS00690/13/600/R0030v3) for the Project
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
Description |
License/Permit
Status |
|||||
Contract 2 |
Contract 3 |
Contract 4 |
Contract 5 |
Contract 6 |
||
1 |
Air pollution
Control (Construction Dust) Regulation |
-- |
-- |
-- |
Ref. No: 359338 Notified on 13 May 2013. |
-- |
2 |
Chemical
Waste Producer Registration - Waste
Producers Number |
-- |
-- |
-- |
(WPN): 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 |
-- |
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 (℃). |
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 |
AM1 |
Tsung Yuen Ha Village House No. 63 |
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 |
AM7a |
Another
village (nameless) aligns to Sha Tau Kok Road – Wo Hang Section
proximity to Tai Tong Wu Village. The location is about 140m away from the original point AM7 |
Sha Tau Kok Road |
Contract 2 |
AM8 |
Po Kat Tsai Village No. 4 |
Po Kat Tsai |
Contract 2 |
AM9a |
Nam Wa Po
Village House No. 71 |
Fanling |
Contract 3 |
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 Rpad |
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.
78 |
Fanling |
Contract 3 |
Table 3-4 Impact Monitoring
Stations - Water Quality
Station ID |
Description |
Designated / Alternative Location |
Nature of the location |
Related to the Work Contract |
|
Coordinates |
|||||
Easting |
Northing |
||||
WM1 |
Downstream of Kong
Yiu Channel |
833679 |
845421 |
Alternative
location located at upstream 51m of the designated location |
Contract 5 |
WM1-Control |
Upstream of Kong
Yiu Channel |
834185 |
845917 |
NA |
Contract 5 |
WM2A |
Downstream of River
Ganges |
834204 |
844471 |
Alternative location
located at downstream 81m of the designated location |
Contract 6 |
WM2A-Control |
Upstream of River
Ganges |
835270 |
844243 |
Alternative
location located at upstream 78m of the designated location |
Contract 6 |
WM2B |
Downstream of River
Ganges |
835433 |
843397 |
NA |
Contract 6 |
WM2B-Control |
Upstream of River
Ganges |
835835 |
843351 |
Alternative
location located at downstream 31m of the designated location |
Contract 6 |
WM3 |
Downstream of River
Indus |
836324 |
842407 |
NA |
Contract 6 |
WM3-Control |
Upstream of River
Indus |
836763 |
842400 |
Alternative
location located at downstream 26m of the designated location |
Contract 6 |
WM4 |
Downstream of Ma Wat Channel |
833850 |
838338 |
Alternative location
located at upstream 11m of the designated location |
Contract 3 |
WM4–Control A |
Kau Lung
Hang Stream |
834028 |
837695 |
Alternative
location located at downstream 28m of the designated location |
Contract 3 |
WM4–Control B |
Upstream of Ma Wat Channel |
833760 |
837395 |
Alternative
location located at upstream 15m of the designated location |
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-5028A |
1-Hour TSP |
|
Portable Dust Meter |
Sibata LD-3 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-1.
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-14 |
Calibrator |
Rion NC-73 / 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 PRO20 Handheld Dissolved Oxygen Instrument |
pH
meter |
The EcoSense
® pH10A pen-style instrument |
Turbidimeter |
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-3 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 Thermo Andersen Model GS2310 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).
Supplementary statistical results (L10 and L90) were also
obtained for reference.
3.6.7
During
the monitoring, all noise measurements would be performed with the meter set to
FAST response and on the A-weighted equivalent continuous sound pressure level
(Leq). Leq(30min)
in six consecutive Leq(5min) measurements
will use as the monitoring parameter for the time period between 0700-1900
hours on weekdays; and also Leq(15min) in
three consecutive Leq(5min) measurements
would be used as monitoring parameter for other time periods (e.g. during
restricted hours), if necessary.
3.6.8
Prior
of noise measurement, the accuracy of the sound level meter is checked using an
acoustic calibrator generating a known sound pressure level at a known
frequency. The checking is performed
before and after the noise measurement.
Water Quality
3.6.9
Water quality
monitoring is conducted at the designated locations. The sampling produce with
the in-situ monitoring are presented as below:
Sampling Procedure
3.6.10
A Digital Global Positioning System (GPS) is
used to identify the designated monitoring stations prior to water
sampling. A portable, battery-operated
echo sounder is used for the determination of water depth at each station. At each station, water sample would be
collected from 0.1m below water surface or the water surface to prevent the
river bed sediment for stirring.
3.6.11
The sample container will be rinsed with a portion of the water
sample. The water sample then will be
transferred to the high-density polythene
bottles as provided by the laboratory, labeled with a unique sample
number and sealed with a screw cap.
3.6.12
Before sampling, general information such as the date and time of
sampling, weather condition as well as the personnel responsible for the
monitoring would be recorded on the field data sheet.
3.6.13
A
‘Willow’ 33-liter plastic cool box packed with ice will be used to preserve the
water samples prior to arrival at the laboratory for chemical
determination. The water temperature of
the cool box is maintained at a temperature as close to 40C as
possible without being frozen. Samples
collected are delivered to the laboratory upon collection.
In-situ Measurement
3.6.14
YSI PRO20 Handheld Dissolved Oxygen Instrument is used for water in-situ measures,
which automates the measurements and data logging of temperature, dissolved
oxygen and dissolved oxygen saturation. Before each round of monitoring, the dissolved
oxygen probe would be calibrated by the wet bulb method.
3.6.15
A portable EcoSense ® pH10A pen-style instrument is used for
in-situ pH measurement. The pH meter is
capable of measuring pH in the range of 0 – 14 and readable to 0.1. Standard
buffer solutions of pH 7 and pH 10 are used for calibration of the instrument
before and after measurement.
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 – 1000 NTU. StablCal®
Standards 10NTU and 100NTU are used for calibration of the
instrument before and after measurement.
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-5028A).
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 |
|
AM1 |
265 |
143 |
500 |
260 |
AM2 |
268 |
149 |
500 |
260 |
AM3 |
269 |
145 |
500 |
260 |
AM4a |
267 |
148 |
500 |
260 |
AM5 |
268 |
143 |
500 |
260 |
AM6 |
269 |
148 |
500 |
260 |
AM7a |
275 |
156 |
500 |
260 |
AM8 |
269 |
144 |
500 |
260 |
AM9a |
271 |
151 |
500 |
260 |
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 properly 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, the construction works under the project is only
commenced in Contract 5. Therefore, air quality monitoring was only
performed at 3 relevant designated locations as below:
AM1 - Tsung Yuen Ha Village House No. 63;
AM2 - Village House near Lin Ma Hang Road; and
AM3 - Ta Kwu Ling Fire Service Station of
Ta Kwu Ling Village
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 27 events of 1-hour TSP and 9 events of 24-hours TSP monitoring were carried out at the three
designated locations, i.e. AM1, AM2 and AM3 and the monitoring results are
summarized in Tables 4-1 to 4-3. 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 – AM1
Date |
24-hour TSP (mg/m3) |
1-hour TSP (mg/m3) |
||||
Date |
Start Time |
1st Measurement |
2nd Measurement |
3rd Measurement |
||
16-Aug-13 |
22
|
16-Aug-13 |
11:28 |
58 |
65 |
71 |
21-Aug-13 |
27
|
22-Aug-13 |
13:27 |
170 |
168 |
166 |
27-Aug-13 |
25
|
28-Aug-13 |
14:26 |
56 |
59 |
57 |
Average (Range) |
25 (22-27) |
Average (Range) |
97 (56-170) |
Table 4-2 Summary
of 24-hour and 1-hour TSP Monitoring Results – AM2
Date |
24-hour TSP (mg/m3) |
1-hour TSP (mg/m3) |
||||
Date |
Start Time |
1st Measurement |
2nd Measurement |
3rd Measurement |
||
16-Aug-13 |
30
|
16-Aug-13 |
11:33 |
38 |
38 |
40 |
21-Aug-13 |
87
|
22-Aug-13 |
13:17 |
158 |
143 |
172 |
27-Aug-13 |
55
|
28-Aug-13 |
14:12 |
190 |
197 |
208 |
Average (Range) |
57 (30-87) |
Average (Range) |
132 (38-208) |
Table 4-3 Summary
of 24-hour and 1-hour TSP Monitoring Results – AM3
Date |
24-hour TSP (mg/m3) |
1-hour TSP (mg/m3) |
||||
Date |
Start Time |
1st Measurement |
2nd Measurement |
3rd Measurement |
||
16-Aug-13 |
31
|
16-Aug-13 |
11:45 |
76 |
89 |
81 |
21-Aug-13 |
26
|
22-Aug-13 |
13:10 |
222 |
243 |
237 |
27-Aug-13 |
38
|
28-Aug-13 |
14:00 |
151 |
163 |
172 |
Average (Range) |
32 (26-38) |
Average (Range) |
159 (76-243) |
4.2.2
It is note
that the monitoring results obtained on 22 August were relatively high compared
with the baseline data. Having consulted
to the Air Pollution Index (API) of EPD, the API on 22 August in general
monitoring stations in Hong Kong were ranged from “high” to “very high” which
implied poor air quality on that day. On
28 August, garbage burning and high road traffic were observed at AM2 and AM3
respectively by the ET during monitoring which may cause the high dust levels.
4.2.3
As
shown in Tables 4-1 to 4-3, the 24-hour and 1-hour TSP monitoring results were
fluctuated below the Action/ Limit Level.
No Notification of Exceedances (NOE) of air quality criteria or
corrective actions were therefore required.
4.2.4
The meteorological
data during the impact monitoring days are summarized in Appendix K.
5.1.1
In the Reporting Period, the construction works under the project is only
commenced in Contract 5. Therefore, noise monitoring was only
performed at 2 relevant designated locations as below:
NM1 - Tsung Yuen Ha Village House No. 63; and
NM2 - Village House near Lin Ma Hang Road
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 6 event noise measurements were carried out at the two designated
locations, i.e. NM1 and NM2. The
sound level meter was set in 1m from the exterior of
the building façade, and therefore, no façade correction (+3 dB(A) is added according to acoustical principles and EPD
guidelines. The noise monitoring results
at the designated locations are summarized in Tables
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
Date |
Start Time |
NM1 (Leq30min) |
Start Time |
NM2 (Leq30min) |
16-Aug-13 |
14:04 |
46
|
13:56 |
67
|
22-Aug-13 |
14:15 |
52
|
13:37 |
59
|
28-Aug-13 |
14:40 |
60
|
14:50 |
63
|
Limit Level |
75 dB(A) |
5.2.2
As shown in Tables 5-1, the noise
level measured at two designated monitoring locations were below 75dB(A). Furthermore,
there were no noise complaints (Action Level exceedance) received by the RE,
Contractor or CEDD in the Reporting Period.
Therefore, no Action or Limit Level exceedance was triggered and no
corrective action was therefore required.
.
6.1.1
In the Reporting Period, the construction works under the project is only
commenced in Contract 5. Therefore, water quality monitoring was only
performed at 2 relevant designated locations as below:
WM1 – Contract 5 working site
downstream at Kong Yiu Channel; and
WM1-Control – Contract 5
working site upstream at Kong Yiu Channel
6.1.2
The water quality monitoring schedule is presented in Appendix H. All monitoring results
including in-situ measurement and laboratory analysis are summarized in the
following sub-sections.
6.2.1
In the
Reporting Period, a total of 7
monitoring days for water quality at the 2 designated locations were conducted. The monitoring results including Dissolved Oxygen, Turbidity, Suspended Solids
and pH are summarized in Table 6-1. Detailed monitoring results 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 of WM1 and WM1-Control
Date |
Dissolved
Oxygen (mg/L) |
Turbidity (NTU) |
pH (value) |
Suspended
Solids (mg/L) |
||||
WM1 |
WM1-
Control |
WM1 |
WM1-
Control |
WM1 |
WM1-
Control |
WM1 |
WM1-
Control |
|
16-Aug-13 |
4.3 |
4.4 |
95.9 |
98.1 |
8.4 |
8.7 |
114.0 |
114.5 |
20-Aug-13 |
5.3 |
4.7 |
23.4 |
19.5 |
8.4 |
8.2 |
29.5 |
19.5 |
22-Aug-13 |
5.1 |
6.3 |
19.8 |
26.6 |
8.4 |
8.6 |
20.0 |
25.5 |
24-Aug-13 |
5.4 |
5.7 |
44.7 |
38.4 |
8.9 |
8.8 |
50.0 |
40.5 |
26-Aug-13 |
6.7 |
6.8 |
45.4 |
52.1 |
8.6 |
8.7 |
29.0 |
39.0 |
28-Aug-13 |
5.1 |
5.2 |
15.1 |
24.8 |
8.5 |
8.2 |
19.0 |
26.0 |
30-Aug-13 |
4.3 |
5.1 |
66.2 |
63.7 |
8.3 |
8.3 |
45.5 |
31.0 |
6.2.2
In view of the monitoring
results of Dissolved Oxygen (DO), all the measured results were higher than
Action Level exceedance and no exceedances were therefore triggered.
6.2.3
Comparatively high readings of Turbidity
and Suspended
Solids were recorded
on 16 and 30 August 2013. Since high
readings were recorded in both control and impact stations and different
between WM1 and WM1-control not greater than 120%, no Action/ Limit exceedances
were triggered according to the set out water quality criteria. No
Notification of Exceedance (NOE) and no corrective action
are therefore required. It is believed that the high readings
were due to high rainfall and the water quality in whole water course was
affected.
6.2.4
pH values detected in downstream WM1 are
between 8.3 and 8.9 whereas the pH values at upstream WM1-Control are between
8.2 and 8.8. The pH vales recorded
during in the Reporting Period are
considered as normal.
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
Type of Waste |
Quantity |
Disposal Location |
C&D
Materials (Inert) (m3) |
0 |
- |
Reused
in this Contract (Inert) (m3) |
0 |
- |
Reused
in other Projects (Inert) (m3) |
0 |
- |
Disposal
as Public Fill (Inert) (m3) |
0 |
- |
Table 7-2 Summary of Quantities of C&D Wastes
Type of Waste |
Quantity |
Disposal Location |
Recycled
Metal (kg) |
0 |
- |
Recycled Paper / Cardboard Packing (kg) |
0 |
- |
Recycled Plastic (kg) |
0 |
- |
Chemical Wastes (kg) |
0 |
- |
General Refuses (m3) |
0 |
- |
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 5
8.2.1
In the Reporting Period, weekly site inspection is
performed in Contract 5 only. Joint
site inspection to evaluate site environmental performance has been carried out
by the RE, IEC, ET and the Contractor on 22 and 29 August 2013. No non-compliance was noted.
8.2.2
The
findings / deficiencies of Contract 5 that observed during the
weekly site inspection are listed in Table 8-1.
Table 8-1 Site
Observations of Contract 5
Date |
||
22 August 2013 |
The Contractor was reminded to clear soil debris
deposit on public road. |
Rectified on 30 Aug 2013 |
29 August 2013 |
The Contractor was reminded to provide proper
water mitigation measures such as temporary drains to avoid generation of
surface runoff from the exposed slopes to the existing stream. General reminders were also given to the
Contractor such as implementation of wheel-washing, public road surface
cleaning, waste segregation, provision of EP copy and provision of chemical
waste store for future checking. |
Not required for reminder. |
Other Contracts
8.2.3
Since
the construction works at the Contract 2, Contract 3, Contract 4 and Contract 6
are not yet commenced, no site inspection is performed for these
Contracts.
The Contract 5
9.1.1
For Contract 5, no environmental complaint,
summons and prosecution was received in the Reporting Period. 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 |
Environmental Complaint Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
|
16 – 31
August 2013 |
0 |
0 |
NA |
Table 9-2 Statistical
Summary of Environmental Summons
Reporting Period |
Environmental Summons Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
|
16 – 31
August 2013 |
0 |
0 |
NA |
Table 9-3 Statistical
Summary of Environmental Prosecution
Reporting Period |
Environmental Prosecution Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
|
16 – 31
August 2013 |
0 |
0 |
NA |
The Other Contracts
9.1.2
Since
the construction works at the Contract 2, Contract 3, Contract 4 and Contract 6
are not yet commenced, no environmental complaint, summons and prosecution are
received in the Reporting Period accordingly.
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 Contract 5 in this Reporting Month are
summarized in Table 10-1.
Table 10-1 Environmental
Mitigation Measures
Issues |
Environmental Mitigation Measures |
Water
Quality |
·
Wastewater to be
treated by filtration system; such as, silt curtain or sedimentation tank
before discharge. ·
Replace silt
curtain materials if necessary |
Air
Quality |
·
Maintain damp /
wet surface on access road ·
Keep slow speed
in the sites ·
All vehicles
must use wheel washing facility before off site ·
All vehicles
must use wheel washing facility before off site ·
Sprayed water
during breaking works |
Noise |
·
Restrain
operation time of plants from 07:00 to 19:00 on any working day except for
Public Holiday and Sunday. ·
Keep good
maintenance of plants ·
Place noisy
plants away from residence or school ·
Provide noise
barriers or hoarding to enclose the noisy plants or works ·
Shut down the
plants when not in used. |
Waste
and Chemical Management |
·
On-site sorting
prior to disposal ·
Follow
requirements and procedures of the “Trip-ticket System” · Predict required quantity of ·
concrete
accurately ·
Collect the unused fresh concrete at designated locations in the sites
for subsequent disposal |
General |
·
The site was
generally kept tidy and clean. |
10.2.1
Key issues to be considered in the coming month in Contract 5
include:
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
10.2.2
For other Contracts, no environmental issue is considered due to
these contracts still yet to commence.
11.1.1
This is 1st monthly EM&A report presenting the
monitoring results and inspection findings for the Reporting Period from 16 to 31 August 2013.
11.1.2
No
24-hour or 1-hour TSP monitoring results that triggered the Action or Limit
Levels were recorded. No NOEs or the associated
corrective actions were therefore issued.
11.1.3
No
noise complaint (which is an Action Level exceedance) was received and no
construction noise measurement results that exceeded the Limit Level were
recorded in the Reporting Period. No NOEs or the associated corrective actions were therefore
issued.
11.1.4
For water
quality monitoring, Turbidity and SS although were exceeded Action or Limit
Levels of the value setting but not
exceeded 120% of
upstream control station of the same day.
According to the exceedance criteria setting in the approved Baseline
Report, so Turbidity and SS are considered no trigger ‘Exceedance Action’. No NOEs or the associated corrective actions were therefore issued.
11.1.5
No
documented complaint, notification of summons or successful prosecution was
received by Contract 5.
11.1.6
Joint site inspection by the RE, IEC, ET and the Contract
5 main-contractor had carried out on 22 and 29 August 2013.
No non-compliance observed during the site inspection. During rainy season, site surface water runoff get
into Kong Yiu Channel and public area should be avoided and mitigation measures for water quality should be properly
implemented. In addition, it was reminded that good housekeeping practice
should be maintained. The environmental
performance of the Project of Contract 5 was therefore considered as
satisfactory.
11.2.1
During rainy season, muddy water and other
water quality pollutants via site surface water runoff get into Kong Yiu Channel or to public
areas should be avoided. Mitigation measures for water quality should
be properly implemented.
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
Moreover, special attention should be paid on
the potential construction dust impact since most of the construction sites are
adjacent to villages. The Contractor
should fully implement the construction dust mitigation measures properly.
11.2.4
Mosquito control measures should be continued to prevent mosquito
breeding on site.