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Job
No.: TCS00715/14 |
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Tuen Mun - Chek Lap Kok
Link Contract No.
HY/2013/12 ¡V Northern
Connection Toll Plaza and Associated Works |
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Contract
Specific Environmental Monitoring and Audit (EM&A) Manual |
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Prepared For CRBC and Kaden Joint Venture |
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Date |
Reference No. |
Prepared By |
Certified By |
17 March 2015 |
TCS00715/14/600/R0015v3 |
Nicola
Hon (Environmental
Consultant) |
T.W.
Tam (Environmental
Team Leader) |
This report has been prepared by Action-United
Environmental Services & Consulting with all reasonable skill, care and
diligence within the terms of the Agreement with the client, incorporating
our General Terms and Conditions of Business and taking account of the
resources devoted to it by agreement with the client. We disclaim any
responsibility to the client and others in respect of any matters outside the
scope of the above. This report is confidential to the client and we accept
no responsibility of whatsoever nature to third parties to whom this report,
or any part thereof, is made known. Any such party relies upon the report at
their own risk. |
Table of Contents
1 Introduction
1
1.1 Background
Information 1
1.2 Policy 2
1.3 EM&A
Programme Objectives 2
1.4 Scope
of the EM&A Programme 3
1.5 Project
Organization 5
1.6 Terminology 7
2 PROJECT
DESCRIPTION
9
2.1 Scope
of the Project 9
2.2 Northern
Section in Tuen Mun 9
2.3 Submarine
Tunnel (not used) 11
2.4 Southern
Section at HKBCR/ North Lantau (not used) 11
2.5 Works
Areas 11
2.6 Sewage
and Drainage 12
2.7 Project
Programme 13
2.8 Concurrent
Projects 13
2.9 Traffic
Data and Assumptions 14
3 AIR
QUALITY
15
3.1 Air
Quality Parameters 15
3.2 Monitoring
Equipment 15
3.3 Laboratory
Measurement/Analysis 16
3.4 Monitoring
Locations 17
3.5 Baseline
Monitoring 18
3.6 Impact
Monitoring 18
3.7 Event
and Action Plan for Air Quality 20
3.8 Dust
Mitigation Measures 20
4 NOISE
23
4.1 Introduction 23
4.2 Noise
Parameters (not used) 23
4.3 Monitoring
Equipment (not used) 23
4.4 Monitoring
Locations (not used) 23
4.5 Baseline
Monitoring (not used) 23
4.6 Construction
Phase Impact Monitoring (not used) 23
4.7 Event
and Action Plan for Construction Noise (not used) 23
4.8 Noise
Mitigation Measures 23
5 WATER
QUALITY
24
5.1 Introduction 24
5.2 Mitigation
Measures 24
5.3 Water
Quality Parameters (Not used) 25
5.4 Monitoring
Equipment (Not used) 25
5.5 Laboratory
Measurement / Analysis (Not used) 25
5.6 Monitoring
Locations (Not used) 25
5.7 Baseline
Monitoring for Water Quality (Not used) 25
5.8 Efficiency
of Silt Curtains (Not used) 25
5.9 Impact
Monitoring for Water Quality (Not used) 25
5.10 Post-construction
Monitoring (Not used) 25
5.11 Operational
Phase Monitoring (Not used) 25
5.12 Event
and Action Plan(Not used) 25
6 ECOLOGY
26
6.1 Introduction 26
6.2 Ecology
EM&A Procedures 26
6.3 Design
Phase Audit 26
6.4 Baseline
Monitoring 27
6.5 Construction
and Operational Phase EM&A 28
6.6 Mitigation
and Enhancement Measures 29
7 LANDSCAPE
AND VISUAL ASSESSMENT
30
7.1 Introduction 30
7.2 Relevant
Legislation 30
7.3 Methodology
and Criteria 30
7.4 Baseline
Monitoring 32
7.5 Event
and Action Plan 32
7.6 Mitigation
Measures 32
8 WASTE
MANAGEMENT AND CONTAMINATED LAND
35
8.1 Waste
Issues 35
8.2 Contaminated
Land 39
8.3 Waste
EM&A Requirements 39
9 CULTURAL
HERITAGE
42
9.1 Introduction 42
9.2 Mitigation
Measures 42
9.3 Design
Phase Audit 42
9.4 Baseline
Monitoring 43
9.5 Construction
Phase Audit 43
10 Landfill Gas Hazard Assessment
45
10.1 Introduction 45
10.2 Monitoring
and Measurement of Landfill Gas 45
11 SITE
ENVIRONMENTAL AUDIT
47
11.1 Site
Inspections 47
11.2 Compliance
with Legal and Contractual Requirements 48
11.3 Environmental
Complaints 48
11.4 Choice
of Construction Method 49
12 REPORTING
50
12.1 General 50
12.2 Documentation 50
12.3 Design
Audit Report 50
12.4 Baseline
Monitoring Report 50
12.5 EM&A
Reports 51
12.6 First
EM&A Report 51
12.7 Subsequent
EM&A Reports 53
12.8 Quarterly
EM&A Summary Reports 54
12.9 Annual/Final
EM&A Review Reports 54
12.10 Data
Keeping 56
12.11 Interim
Notifications of Environmental Quality Limit Exceedances 56
List of Figures
Figure 1.1 Design
Phase EM&A Procedure and Organization
Figure 1.2 Construction
and Operational Phase Procedure and Organization
Figure 2.1 General
Layout of TM-CLKL
Figure 2.2a layout plan of northern landf all
Figure 2.2b layout plan of southern landf all
Figure 2.4a Northern
Viaduct Connection, Slip Roads and Toll Plaza
Figure 2.4b Traffic
Flows at Toll Plaza
Figure 2.4c Layout
Plan of Contract HY/2013/12 ((Sheet 1 of 3)
Figure 2.4d Layout
Plan of Contract HY/2013/12 ((Sheet 2 of 3)
Figure 2.4e Layout
Plan of Contract HY/2013/12 ((Sheet 2 of 3)
Figure 2.4f 250m
Consultation Zone of PPV Landfill
Figure 2.8a Proposed
Works Areas for TM-CLKL (Tuen Mun Side)
Figure 2.8b Proposed
Works Areas for TM-CLKL (Lantau Side)
Figure 2.9a Indicative
Construction Programme in Tuen Mun
Figure 2.9c Portions
of Works in Tuen Mun
Figure 3.1 Data
Sheet for TSP Monitoring
Figure 3.2a Air
quality Monitoring Station under the contract
Figure 6.1 Construction
Phase Ecological EM&A Procedure
Figure 7.1.1.1 Baseline
Landscape Resources with Development Proposal Overlaid (Sheet 1 of 5)
Figure 7.1.1.2 Baseline
Landscape Resources with Development Proposal Overlaid (Sheet 2 of 5)
Figure 7.2.1.1 Baseline
Landscape Character Areas with Development Proposal Overlaid (Sheet 1 of 5)
Figure 7.2.1.2 Baseline
Landscape Character Areas with Development Proposal Overlaid (Sheet 2 of 5)
Figure 7.3.1.1 Baseline
Key VSRs and Viewpoint at Local Level with Development Proposal Overlaid During
Construction (Sheet 1 of 2)
Figure 7.3.1.3 Baseline
Key VSRs and Viewpoint at Local Level with Development Proposal Overlaid During
Operation (Sheet 1 of 2)
Figure 7.3.2.1 Baseline
Key VSRs Viewpoints at Strategic and District Level with Development Proposal
Overlaid
Figure 9.1 Retaining
Walls Arrangement at Existing Grave
Figure 12.1 A
sample template for the interim notifications
List of TABLES
Table
1.1 Summary of EM&A Requirements
Table
2.1 Proposed Tolling
Arrangements at Toll Plaza
Table
2.2 Details of
TM-CLKL Proposed Works Areas
Table
2.3 Estimated Sewage
Generation
Table
3.1 Air Quality
Monitoring Station under the Contract
Table
3.2 Enhanced TSP
Monitoring Plan ¡V Construction Phase
Table
3.3 Action and Limit
Levels for Air Quality
Table
3.3a TSP Action and Limit Levels for
Impact Air Quality Monitoring
Table
3.4 Event / Action Plan for Air Quality
Table
6.1 Ecological
Design Specifications
Table
6.2 Event / Action Plan for Design Phase
Table
6.3 Event / Action Plan for General Ecology
Table
7.1 Monitoring
Programme
Table
7.2 Event and Action Plan for Landscape and
Visual Impact
Table
8.1 Estimated
quantities of C&D materials and waste from Contract No. HY/2013/12
Table
8.2 Recommended
Waste Disposal Sites
Table
8.2 Waste Management Checklist
Table
8.3 Waste Management Checklist
Table
9.1 Event / Action Plan for Design Phase
Table
9.2 Event / Action Plan for Construction Phase
Table 10.1 Actions
in the Event of Landfill Gas being Detected in Excavation / Confined Area
List of Appendices
Appendix
A Environmental
Mitigation Implementation Schedules
Appendix B Environmental
Proformas
Appendix C Summary of
Changes for Contract Specific EM&A Manual
1.1.1.1
According to the findings of the Northwest
New Territories (NWNT) Traffic and Infrastructure Review conducted by the
Transport Department, Tuen Mun Road, Ting Kau Bridge,
Lantau Link and North Lantau Highway (NLH) will be operating beyond capacity
after 2016 due to the increase in cross boundary traffic, developments in the
NWNT, and possible developments in North Lantau, including the Airport
developments, the Lantau Logistics Park (LLP) and the Hong Kong ¡V Zhuhai ¡V
Macao Bridge (HZMB). In order to cope with the anticipated traffic demand, two
new connections between NWNT and North Lantau ¡V Tuen Mun ¡V Chek
Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.
1.1.1.2
The proposed TM-CLKL if combined with the
TMWB will provide a direct route linking NWNT and North Lantau, from north to
south, the Kong Sham Western Highway (KSWH), port back-up areas in NWNT, Tuen
Mun River Trade Terminal, the existing EcoPark in
Tuen Mun Area 38, the Airport, the proposed LLP, HZMB and North Lantau
developments. The new connection will significantly reduce the travelling time
between the KSWH and the NWNT region at its northern side, and North Lantau at
its southern side.
1.1.1.3
In 2005, Highways Department (HyD)
commissioned an engineering feasibility study (FS), namely Tuen Mun Chek Lap Kok Link and Tuen Mun Western Bypass ¡V Feasibility
Study (Agreement No. CE 28/2005 (HY)), to evaluate the technical feasibility
and impacts of the Project. The FS
recommended that the TM-CLKL should be a dual 2-lane road with a total length
of about 9 km with about 4 km long submarine tunnel and 5 km long elevated
structure.
1.1.1.4
In order to progress this project, Maunsell
Consultants Asia Ltd. were appointed by HyD to carry
out the Assignment on Tuen Mun ¡V Chek Lap Kok Link - Investigation
under Agreement No. CE 52/2007 (HY). The Assignment commenced on 19 May 2008
and shall be completed within 24 months, i.e. by mid-May 2010.
1.1.1.5
The Feasibility Study initially proposed an alignment of
the TM-CLKL comprising a toll plaza island at Tai Mo To and this alignment
formed the basis of the EIA Study Brief (ESB 175/2007). However, subsequent to
these documents being prepared and based upon the proposed schemes for the Hong
Kong-Zhuhai-Macao Bridge (HZMB) and Hong Kong Boundary Crossing Facilities
(HKBCF), it was decided to integrate the TM-CLKL southern landfall reclamation
with the HKBCF reclamation. It was considered that this arrangement would also
provide a cost-effective connection between the HKBCF and North Lantau.
Following a full option assessment, the preferred scheme was selected, as
detailed in Section 2 of this EM&A Manual.
1.1.1.6
The project is a designated project under Section A.1 of
Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO). As such,
the statutory procedures under the EIAO need to be followed and an
environmental permit (EP) will be required prior to the commencement of
construction. Thus, as part of this assignment, an Environmental Impact
Assessment (EIA) has been undertaken.
1.1.1.7
The EIA for the project has recommended comprehensive
Environmental Monitoring and Audit requirements to be undertaken during the
design, construction and operational stages of the project. This Report
constitutes the Environmental Monitoring and Audit (EM&A) Manual for the
proposed Tuen Mun - Chek Lap Kok Link (TM-CLKL)
Project, providing details of the EM&A recommendations.
1.1.1.8
The Hong Kong SAR Government¡¦s applicable environmental
regulations for noise, air quality, ecology, water quality, landscape and
visual resources and waste management and heritage protection, the Hong Kong
Planning Standards and Guidelines and recommendations in the TM-CLKL EIA Report
have served as guidance documents in the preparation of this Manual. This
EM&A Manual fulfills the requirements of the Study Agreement and follows
the approach recommended in EPD¡¦s Generic EM&A Manual, Annex 21 of the
Technical Memorandum on the EIA Process and EM&A Guidelines for Development
Projects in Hong Kong.
1.2.1.1
The Engineer¡¦s Representative (ER) and the Contractor
shall adopt Environmental Policy Statements in accordance with the requirements
of this Manual in order to foster a sound EM&A programme to protect the
environment. The following policy statements shall be adopted:
establish a commitment to environmental excellence in all
activities arising from the development project;
encourage the adoption of environmental management
principles to prevent potential impacts and minimize adverse impacts; and
commit to the
recommendations in the EIA study report and related EIA process requirements.
1.3.1.1
The broad objective of this EM&A Manual is to define
the procedures of the EM&A programme for monitoring the environmental
performance of the TM-CLKL project during design, construction and
implementation.
1.3.1.2
The manual provides details of the environmental
monitoring requirements arising from the EIA including air, noise and water
quality, as well as audit recommendations for the noise, air, water quality,
ecology, landscape and visual, waste and cultural heritage. The purposes of the
defined EM&A programme are as follows:
to ensure the specified mitigation recommendations of the
EIA are included in the design of the project;
to clarify and identify
sources of pollution, impact and nuisance arising from the works;
to confirm compliance
with legal, contract specifications and EIA study recommendations;
to provide an early
warning system for impact prevention;
to provide a database of
environmental parameters against which to determine any short term or long term
environmental impacts;
to propose timely,
cost-effective and viable solutions to actual or potential environmental
issues;
to monitor performance
of the mitigation measures and to assess their effectiveness and, whenever necessary,
identify any further need for additional measures;
to verify the EIA
predicted impacts;
to collate information
and evidence for use in public, District Council and Government consultation;
and
to audit environmental
performance.
1.3.1.3
EM&A procedures are
required during the design, construction and operational phases of the project
implementation and a summary of the requirements for each of the environmental
parameters is detailed in Table 1.1
below.
Table 1.1 Summary of EM&A
Requirements
Parameter |
EM&A Phase |
||
Design |
Construction Phase |
Operational Phase |
|
Air Quality |
|
Y |
|
Noise |
Not relevant to the Northern
Connection Toll Plaza and Associated Works since there is no noise
sensitive receiver identified for the Project area at Tuen Mun. |
||
Ecology |
Y |
Y |
Y |
Water Quality |
The major construction activity
of Northern Connection Toll Plaza and Associated Works is land based and no
water quality monitoring is therefore required. |
||
Landscape and Visual |
Y |
Y |
Y |
Waste/Contaminated Land |
|
Y |
|
Cultural Heritage |
Y |
Y |
|
Remarks:
Y = Yes
1.4.1.1
The scope of the EM&A programme is to undertake the
following:
a.)
Implement monitoring and audit activities for each
environmental parameter as follows:
Dust: |
i.
Establish
baseline dust levels at specified locations and review
these levels on a regular basis. ii. Implement construction dust impact monitoring
programme. |
Noise: |
i.
Not relevant to Toll Plaza. |
Ecology: |
i.
Implement design
phase audit for integrated ecological mitigation measures. ii. Implement baseline survey to establish existing ecological
conditions. iii. Implement construction phase monitoring and audit
requirements for ecology resources. iv. Implement operational phase monitoring. |
Water Quality: |
i.
Not relevant to Toll Plaza. |
Landscape and
Visual: |
i.
Design detailed
landscape specifications. ii. Implement baseline survey to establish/confirm existing
landscape and visual conditions. iii. Implement construction phase audit requirements for
landscape and visual resources. iv. Implement operational phase audit requirements for
landscape and visual aspects. |
Waste: |
i.
Implement
construction phase audit requirements for waste aspects. |
Heritage: |
i.
Implement design
phase audit for toll plaza design to ensure set back from grave as been integrated. ii. Implement walkover survey to confirm existing conditions. iii. Implement construction phase audit requirements for
historical resources. |
b.)
Liaison and provision of advice to construction site
staff on the purposes and implementation of the EM&A programme.
c.)
Identify and resolve environmental issues that may arise
from the project.
d.)
Check and quantify the Contractor¡¦s overall performance,
implement Event/Action Plans and recommend and implement remedial actions to mitigate
adverse environmental effects as identified by the EM&A programme and EIA.
e.)
Conduct monthly reviews of monitored impact data during
the construction phase and bi-monthly reviews during the operational phase as the
basis for assessing compliance with defined criteria and ensuring that necessary
mitigation measures are identified, designed and implemented and to undertake
additional ad hoc monitoring and audit as required by particular circumstances.
f.)
Evaluate and interpret all environmental monitoring data
to provide an early indication should any of the environmental control measures
or practices fail to achieve the acceptable standards and to verify the environmental
impacts predicted in the EIA.
g.)
Manage and liaise with other individuals or parties
concerning any relevant environmental issues.
h.)
Audit the effectiveness of the Environmental Management
System (EMS) practices and procedures and implement any changes as appropriate.
i.)
Conduct regular site audits of formal or informal nature
to assess:
-
the level of the Contractor¡¦s general environmental
awareness;
-
the Contractor¡¦s implementation of the recommendations in
the EIA;
-
the Contractor¡¦s performance as measured by the EM&A;
-
the need for specific mitigation measures to be
implemented or the continued usage of those previously agreed; and
-
to advise the
site staff of any identified potential environmental issues.
j.)
Submit EM&A reports which summaries project
monitoring and auditing data, with full interpretation, illustrating the
acceptability or otherwise of any environmental impacts and identification or
assessment of the implementation status of agreed mitigation measures.
1.4.1.2
Thus, this EM&A Manual provides the following
information:
a.)
Description of the project.
b.)
Identification and recommendations for monitoring
requirements for all phases of development, including:
-
identification of sensitive receivers;
-
monitoring locations;
-
monitoring parameters and frequencies;
-
monitoring equipment to be used;
-
programmes for baseline
monitoring and impact monitoring; and
-
data management
of monitoring results.
c.)
The organization management structure and procedures for
auditing of the Project and implementation of mitigation measures that are
recommended for the Project.
d.)
The environmental quality performance limits for
compliance auditing for each of the recommended monitoring parameters to ensure
compliance with relevant environmental quality objectives, statutory or
planning standards.
e.)
Organization and management structure, and procedures for
reviewing the design submissions, monitoring results and auditing the
compliance of the monitoring data with the environmental quality performance limits,
contractual and regulatory requirements, and environmental policies and standards.
f.)
Event and Action plans for impact and compliance
procedures.
g.)
Complaints handling, liaison and consultation procedures.
h.)
Interim notification of exceedances, reporting procedures,
report formats and reporting frequency including periodical quarterly summary
reports and annual reviews to cover all construction, post-Project and
operational phases of the development.
i.)
Implementation schedules, summarizing all recommended mitigation
measures.
1.4.1.3
This Manual is considered to be a working document and
should be reviewed periodically and revised once substantial changes have been
made.
1.5.1.1
For the purpose of this EM&A
Manual, the Highways Department of the Hong Kong SAR Government is referred to
as the ¡§Employer¡¨ and the Project ¡§Engineer¡¨ defined as the Engineer¡¦s
Representative (ER), who will be responsible for the supervision of the
construction of the Project.
1.5.1.2
The mitigation/enhancement measures recommended by the
TM-CLKL EIA that will require a design audit or preparation of specifications
during the detailed design phase of the project will include:
installation of hoarding
for the protection of the pitcher plants and surrounding habitat;
design of toll plaza for
grave G1 set back and protection; and
landscape design drawings.
1.5.1.3
In respect of the design phase EM&A, the Consultant
commissioned to undertake the Detailed Design contract will be required to
designate an auditor(s) to undertake the preparation of the design
specifications as detailed above, in addition to an environmental audit of the
design of the specified landscape measures in order to ensure that the
recommendations of the EIA have been fully and properly specified. The
Consultant shall use suitably qualified staff to undertake the audit
requirements to the satisfaction of the EPD and the AFCD as appropriate. A flow
chart of the design phase EM&A procedures is shown in Figure 1.1.
1.5.1.4
During the construction and operational phases of the
project, an Environmental Team (ET) is to be employed by the Contractor. The ET will be headed by an Environmental
Team Leader (ETL). He shall ensure the Contractor¡¦s compliance with the
project¡¦s environmental performance requirements during construction and undertake
the post construction EM&A works and his responsibilities will include
field measurements, sampling, analysis of monitoring
results, reporting and auditing. The ETL shall be approved by the ER and the
Director of Environmental Protection (DEP) and shall be competent and shall
have at least 7 years relevant environmental monitoring and audit experience on
projects of a similar scale and nature.
1.5.1.5
The ET will comprise suitably qualified
support staff to carrying out the EM&A programme. The ET shall be independent
and shall not be in any way connected to the Contractor¡¦s company. Due to the
specialist nature of some of the EM&A works required for this project, the
ET should comprise professionals proficient to undertake the tasks involved. Thus, the ET should include personnel
experienced in dust monitoring and mitigation, supervision of waste management
and compensatory tree planting.
1.5.1.6
Accordingly, a Registered Landscape
Architect, as defined by the Landscape Architect¡¦s Registration Board, will be
required on the ET to monitor and audit the landscaping installation works and
assist in the audit of the ecological transplantation and restoration works.
1.5.1.7
The overall duties of ETL and the team are as follows:
Sampling, analysis and statistical evaluation of monitoring
parameters with reference to the EIA study recommendations and requirements in respect
of noise, dust and water quality.
Environmental site surveillance.
Audit of compliance with
environmental protection and pollution prevention and control regulations.
Monitor the
implementation of environmental mitigation measures.
Monitor compliance with
the environmental protection clauses/specifications in the Contract.
Review construction
programme and comment as necessary.
Review construction
methodology and comment as necessary.
Complaint investigation,
evaluation and identification of corrective measures.
Audit of the EMS and
recommend and implement any changes as appropriate.
Liaison with the
Independent Environmental Checker IEC) on all environmental performance
matters.
Advice to the Contractor
on environmental improvement, awareness, enhancement matter, etc., on site.
Timely submission of the
designated EM&A reports to the ER, the IEC, the DEP, the AFCD and the AMO
as appropriate.
1.5.1.8
In addition to the ETL and ET, an Independent
Environmental Checker (IEC) shall be employed to advise the ER on environmental
issues related to the project. The
role of the IEC shall be independent from the management of construction works,
but the IEC shall be empowered to audit the environmental performance of the
construction activities and operational mitigation. The IEC shall have project management
experience in addition to the requirements of the ET specified above and the
appointment of the IEC will be subject to the approval of the ER and the DEP. The IEC may require specialist support
staff in order to properly carry out his duties, which shall include the
following:
Review and audit all aspects of the EM&A programme.
Validate and confirm the accuracy of monitoring results,
monitoring equipment, monitoring locations, monitoring procedures and locations
of sensitive receivers.
Carry out random sample check and audit on monitoring
data and sampling procedures, etc.
Conduct random site inspection.
Audit the EIA recommendations and requirements against
the status of implementation of environmental protection measures on site.
Review the effectiveness of environmental mitigation
measures and project environmental performance.
Audit the Contractor¡¦s construction methodology and agree
the least impact alternative in consultation with the ET and the Contractor.
Check
complaint cases and the effectiveness of corrective measures.
Review EM&A report
submitted by the ET.
Feedback audit results
to ET by signing off relevant EM&A proformas.
1.5.1.9
An organization chart
showing the lines of communication between the key parties with respect to the
EM&A works is provided on Figure
1.2. Both the ET and IEC shall be retained for the duration of the
EM&A works which will span both the construction phase and one year into
the operational phase of the project.
The operational EM&A works will be the responsibility of the
Contractor and will be undertaken in parallel to the maintenance period after
the completion of construction.
1.5.1.10
Notwithstanding the
above, given that the TM-CLKL, HKBCF and HKLR will be constructed concurrently,
an Environmental Protection Office (ENPO) or equivalent to oversee the
cumulative construction projects in North Lantau area will be established by
the Project Proponent. The responsibility of the ENPO would be similar to that
of the IEC but should also include:
coordination of the
monitoring and auditing works for all the on-going projects in the area in
order to identify possible sources/causes of exceedances and recommend suitable
remedial actions where appropriate;
identify and assess
cumulative impacts including possible sources/causes of exceedance and
recommending suitable remedial actions;
undertake liaison with
the mainland project teams counterparts to identify and assess any
cross-boundary cumulative impacts; and
coordinate the assessment and
response to complaints/enquires from locals, green groups, district councils or
the public at large.
1.5.1.11
The exact
responsibilities and organization of the ENPO will be defined during the detailed
design stage.
1.6.1.1
To clarify the terminology for impact monitoring and
audit, key definitions are specified below and are used throughout this Manual.
1.6.1.2
Monitoring refers to the systematic collection of data
through a series of repetitive measurements. The stages of monitoring are
defined in this document as follows:
a.)
Baseline Monitoring refers to the measurement of air
quality parameter during a representative pre-project period for the purpose of
determining the nature and ranges of natural variation and to establish, where
appropriate, the nature of change.
b.)
Impact Monitoring involves the air quality measurement of
environmental parameter, during Project construction and implementation so as
to detect changes in the parameter which can be attributed to the Project.
1.6.1.3
Audit is a term that infers the verification of a
practice and certification of data.
The types of audit are defined below:
a.)
Compliance audit
is defined as follows:
the process of
verification that all or selected parameters measured by a noise or air quality
impact monitoring programme or levels of an operation are in compliance with
regulatory requirements and internal policies and standards; and
the determination of
the degree and scope of any necessary remediation in the event of exceedance of
compliance.
b.)
Post Project Audit
is carried out after the implementation and commissioning of a Project.
1.6.1.4
For the purpose of
air impact monitoring and audit, the Action and Limit Levels are defined as
follows:
a.)
The Action Level
is the level defined in which there is an indication of a deteriorating ambient
level for which a typical response could be an increase in the monitoring
frequency.
b.)
The Limit Level is
the level beyond the appropriate remedial pollution control ordinances, air quality
objectives or Hong Kong Planning Standards and Guidelines established by the
EPD for a particular project, such that the works should not proceed without
appropriate remedial action, including a critical review of plant and work
methods.
2.1.1.1
Further to the recommendations of the Option Assessment
and subsequent alignment developments detailed in Section 2 of the EIA report,
the preferred TM-CLKL scheme comprises Northern Connection Option N1b, Main
Connection Option M3 and Southern Connection Option S1. This preferred
alignment is shown in Figure 2.1 and
will comprise:
(a)
construction of approximately 5.0km long dual 2-lane road
tunnel between Tuen Mun Area 40 and the HZMB HKBCF at north-east of HKIA;
(b)
construction of approximately 4.2km seawalls and
approximately 35.6ha of reclamation to the Government foreshore and sea-bed at
Tuen Mun Area 40 and Lantau for the tunnel portals and the associated roads, as
shown in Figures 2.2a and 2.2b;
(c)
construction of approximately 1.6km long dual 2-lane
viaduct between HZMB HKBCF and NLH and the associated roads at Tai Ho;
(d)
construction of a toll plaza at Tuen Mun Area 46 and the
associated roads at Tuen Mun;
(e)
construction of footpaths areas;
(f)
construction of administration building, ventilation
buildings and other ancillary buildings to facilitate ventilation and tunnel
control operation serving the proposed road tunnel in (a) above and toll plaza
in (d) above;
(g)
modification and realignment of sections of Lung Fu Road
and Lung Mun Road at Tuen Mun;
(h)
modification and realignment of sections of North Lantau
Highway and Cheung Tung Road at Tai Ho;
(i)
permanent closure and demolition of sections of existing
at-grade carriageways, footpaths and central median/refuge islands;
(j)
temporary closure and reconstruction/modifications of
sections of existing at-grade carriageways, footpaths and central median/refuge
islands; and
(k)
ancillary works
including site formation, slope, drainage, utilities, footbridge, noise
barriers, retaining walls, berths and temporary pontoon.
2.1.1.2
Details of the various elements of the selected TM-CLKL
alignment are detailed in the sections below.
2.2.3.1
A toll plaza at Tuen Mun Area 46 is proposed for the
TM-CLKL, as shown in detail in Figures 2.4a
to 2.4e. The toll
plaza is also considered as a co-location to accommodate the tolling provision
for the interface project, TMWB. In order to facilitate the tunnel operator(s)
applying different toll levels to TM-CLKL and TMWB road users, the following 3
separate groups of toll booths are proposed to be provided at the toll plaza:
travelling
from/to TM-CLKL only;
travelling
from/to TMWB only; and
travelling from/to both TM-CLKL and TMWB.
2.2.3.2
The proposed toll plaza is approximately 190m x 680m in
size, with tunnel operation facilities located at the northern side of the
site. With reference to the latest traffic forecast at year 2031, the required
number of tolling lanes for different travelling trips are summarised
in Table 2.1 below:
Table 2.1 Proposed
Tolling Arrangements at Toll Plaza
Travelling Trip |
Northbound |
Southbound |
Sub-total |
||
Auto-toll Lane |
Manual-toll Lane |
Auto-toll Lane |
Manual-toll Lane |
||
TM-CLKL only |
2 |
2 |
2 |
2 |
8 |
TMWB only |
2 |
2 |
2 |
2 |
8 |
Both TM-CLKL & TMWB |
2 |
2 |
2 |
3 |
9 |
Total: |
|
25 |
2.2.3.3
The nearside tolling lane for each direction is proposed
to be 6.2m wide, for the passage of exceptionally wide vehicles and special
vehicles such as tunnel operator¡¦s vehicles or other authorized vehicles. The
other tolling lanes are proposed to be 3.65m wide in order to allow the
flexibility of switching between manual-toll and auto-toll if necessary. A 1.6m
wide physical island will be provided to accommodate the toll booth, the access
staircase landing and the concrete median barriers.
2.2.3.4
The following facilities are required at the toll plaza
area for tunnel operations:
an administration building which could cater for 2 tunnel
operators (including individual workshops, garage and maintenance buildings);
a weigh station;
a vehicle recovery area;
turnaround facilities;
vehicle cross-over area;
a petrol filling station;
bus lay-bys with footbridge links; and
parking spaces for
employees, visitors, recovery, operation and maintenance vehicles.
2.2.3.5
The southwest end of the toll plaza will connect with
both northbound and southbound of the TM-CLKL. In order to tie in with the lane
configuration of TM-CLKL, both 3-lane and 2-lane carriageways will be provided
at the toll plaza for TM-CLKL northbound and southbound traffic respectively.
Roads connecting traffic heading to or coming from the TMWB will, also, be
provided between the toll plaza and TMWB tunnel portal.
2.2.3.6
A dual single-lane carriageway linking the proposed
enlarged roundabout at the junction of Lung Mun Road / Mong
Tat Street and the TMWB mainline tunnel will be provided in between the
northbound and southbound carriageways of the TM-CLKL.
2.2.3.7
Traffic from the Tuen Mun south road network destined for
TM-CLKL will use the approach single carriageway slip road branching from the
proposed roundabout at Lung Mun Road and Lung Fu Road. The traffic from TM-CLKL
leading to the Tuen Mun south road network will use the exit slip road after leaving
the toll booth. The slip road, which takes the form of a single carriageway tunnel,
will connect with the proposed roundabout at Lung Mun Road and Lung Fu Road.
2.2.3.8
An internal 7.3m wide 2-way service road providing the
turnaround service route around the portal area will also be provided, with a
2.0m wide footpath provided on one side of the road. An ingress/egress is
proposed at both ends of the toll plaza to allow for access of tunnel
operation, recovery and emergency vehicles.
2.2.3.9
The toll plaza will be formed as a raised platform above
the general existing ground. It will be partly constructed on fill supported by
retaining walls, and partly constructed on elevated structures. Cut slopes will
also be required, which will mostly be along the northern edge of the toll
plaza, with some isolated ones associated with the formation of the various
slip roads connecting the toll plaza to the local roads in Tuen Mun. The
excavated materials from the cut slopes will be re-used for the filling as part
of the earthwork balancing exercise.
2.2.3.10
In order to cope with the proposed layout of the toll
plaza, the existing Lung Mun Road will have to be realigned sideway to the
south by about 30m to suit. An alternative option of providing a decking
support for the portion of the toll plaza overhanging the existing Lung Mun
Road has, also, been considered as viable.
2.2.3.11
The current layout of the toll plaza, on the basis of
co-locating the tolling provision for both the TM-CLKL and TMWB, represents the
worst cases scenario for the EIA purposes in so far as the scale and extent of
works are concerned, as the combined toll plaza requires a larger land take
than a single, TM-CLKL only, toll plaza. The option remain, however, to
separate the tolling facilities and/or to adopt ¡§non-tolling¡¨ for TMWB, which
could result in a ¡§single¡¨ toll plaza of a smaller scale.
2.2.3.12
As described in Section 1 and 2, the EIA
Study Brief (ESB 175/2007), was based upon a toll plaza being located on either
the northern or southern landfall reclamation and, therefore, did not interface
with the 250m Consultation Zone of the Pillar Point Valley Landfill and,
therefore, no specific requirements for a landfill gas hazard assessment were
included in the EIA Study Brief. However, as shown in Figures 2.4f, the proposed location of the combined toll plaza
will encroach into the 250m consultation zone of the Pillar Point Valley
Landfill and, as such, could be affected by the migration of landfill gas.
Notwithstanding the scope of the EIA Study Brief, this issue should be assessed
as part of the EIA and, therefore, a Landfill Gas Hazard Assessment has been
undertaken as part of this Assignment.
2.2.4.1
Site formation and associated slopes and retaining walls
will be required to form the toll plaza and associated road carriageways. In
general, soil and rock cut slopes would be involved. All slopes will be formed
in a stable slope angle with proper maintenance access and drainage surface
channels. If necessary, soil nails will be installed to ensure adequate current
safety standard. Fill slope formation will unlikely be required according to
the current road alignment. The feasible retaining wall structures could be
mass concrete, reinforced concrete L-shape or crib walls and reinforced earth
for road embankment.
2.5.1.1
Six works areas have been identified for use during the
construction period of TM-CLKL, and will be used for locating site offices and
for storage of materials and viaduct segments, etc. The locations of the works
areas are shown in Figures 2.8a and 2.8b
and described in Table 2.2
below.
Table 2.2 Details
of TM-CLKL Proposed Works Areas
Works Area |
Location |
Proposed Use |
Lantau # |
||
WA4 |
At the existing reclaimed land near Tai Ho Offtake and Pigging Station at Cheung Tung Road in Lantau |
Works
area for storage of materials and viaduct segment and site
office |
WA5 |
At
the existing site offices for Yam O Road Watermains near Yam O Wan at Cheung Tung Road in Lantau |
Works
area for storage of materials and viaduct segment and site
office |
WA6 |
At
the existing site offices and storage yard for Penny¡¦s
bay Reclamation near Yam O Wan at Cheung Tung Road in Lantau |
Works
area for storage of materials and viaduct segment and site
office |
WA23 |
At
the existing reclaimed land at Wok Tai Wan in Tsing
Yi |
Casting
yard for fabrication of precast units, storage of work
boats, materials and site office |
Tuen Mun |
||
WA18 |
At
the existing River Trade Golf at Pillar Point in
Tuen Mun |
Works
area for storage of materials and viaduct segment and site
office |
WA19 |
At
the existing closed Pillar Point Valley Landfill at
Pillar Point in Tuen Mun |
Works
area for storage of materials and viaduct segment and site
office |
# Works
Area Lantua is not relevant to Toll Plaza
2.5.1.2
All the works areas are currently formed on developed
land, with some already being used as works areas for on-going construction
projects. The exception to this is WA19 which is within the Pillar Point
landfill area, and the site as a whole is largely covered with vegetation with
only a relatively small portion formed and utilized. However, the terms for use
of this site during the TM-CLKL construction requires that no trees will be
removed and therefore, only the already formed areas will be utilized. In
addition, all the sites are located away from any residential areas.
2.6.1.1
Stormwater drainage
systems will be provided to collect stormwater from
the carriageway surfaces. The stormwater will enter
into gullies along the kerb lines. The gullies will
be fitted with sumps to trap silt and grit prior to discharging the stormwater into the stormwater
drainage systems. The drainage systems will eventually discharge the stormwater into the sea at discrete locations. Similar systems
will be provided along the marine viaduct. Sump traps will be built into the deck
structure, and the collected stormwater will
discharge into the sea at the column locations.
2.6.1.2
Operational sewage will be generated but, again, in
relatively small quantities as summarized in Table 2.3 below, based upon the staffing estimates required for
the TM-CLKL project.
Table 2.3 Estimated
Sewage Generation
Location |
Staff |
Average Dry Weather Flow (m3/day) |
Toll Plaza |
110 |
38.5 |
2.6.1.3
In Tuen Mun, the sewage (Average Dry Weather Flow (ADWF))
from the toll plaza and northern ventilation building is estimated to be about
178m3 per day and with about 510 personnel on site in total. The
sewage will be discharged to the existing sewerage system and it is expected
that that adequate capacity in the local system to accommodate this amount is
available.
2.6.1.4
Not relevant to Toll Plaza EM&A programme
2.7.1.1
It is anticipated that construction for the TM-CLKL will
commence in late 2014, with a target opening date for the entire road
link at the end of 2016. An indicative construction programme showing the key activities
in different major construction areas is shown in Figures 2.9a. Locations of the construction
areas referenced in the construction programme are shown in Figures 2.9c. This is based upon
working 12 hours per day for all land works.
2.7.1.2
Not used.
2.7.1.3
Not used.
2.7.1.4
Not used.
2.7.1.5
Not used.
2.8.1.1
Not used.
2.8.1.2
As the projects HKBCF, HKLR and TM-CLKL are proposed to
be constructed concurrently and will be operational at the same time, cumulative impacts are possible and have been assessed.
2.8.2.1
The construction of the TMWB is tentatively planned to
commence in late 2011 and be completed by late 2016. The TMWB southern tunnel
and its portal will abut with the toll plaza and will interface with the
TM-CLKL (see Figures 2.4a and 2.4b). Interface of construction activities,
including construction access, temporary stockpile area within the toll plaza
site for processing, sorting, stockpiling of excavated material from the TMWB
tunnel, and any blasting impacts from the drill and blast tunnelling
method of the TMWB southern tunnel, will require detailed coordination during
the construction phase. As the projects are proposed to be constructed
concurrently and will be operational at the same time, cumulative impacts are
possible and have been assessed.
2.8.3.1
In addition to the interface with the major concurrent
projects described above, details of other concurrent projects during either
the construction and/or the operational phases, together with details of how
these are assessed in the EIA, are described in the summary table of concurrent
projects included as Appendix A2 of the EIA report.
2.9.1.1
A Local Area Model was developed to provide traffic
forecasts for EIA purposes. The EIA
requires cumulative traffic forecasts and, hence, EIA flows were produced
assuming the HZMB, HKLR, HKBCF, TMWB and TM-CLKL were all in place. In order to
achieve consistency, a consistent set of model input assumptions have been
adopted for the interfacing studies of TM-CLKL, HKBCF, HKLR and TMWB.
2.9.1.2
The TMWB was assumed to be ¡§non-tolled¡¨ for the purposes
of the TM-CLKL EIA forecasts. This would make a marginal difference to the
predicted TM-CLKL traffic forecasts, increasing the traffic flows slightly and,
therefore, would represent a potentially worst case for assessing the
environmental impacts. The traffic
flows have been divided into the 16 vehicle classes required to determine the
emissions of the traffic.
2.9.1.3
The opening year for the whole TM-CLKL, i.e. both
northern and southern sections, is 2016. Design year peak hour traffic
forecasts have, therefore, been prepared for the years 2016, 2021 and 2031
which reflect the full operation of the TM-CLKL. In addition, to assess the
environmental impacts at the interim year of 2014, when the southern section
will be opened to form part of the new road network servicing the HKBCF Phase 1
commissioning, the relevant traffic forecasts for this year have also been
prepared. A summary of the traffic data for the prevailing year of 2007 and the
future years of 2014, 2016, 2021 and 2031 and the road links are included in
the EIA Report.
As per Condition 2.4 of
the EP of TM-CLKL, an enhanced monitoring plan on TSP level at Tuen Mun (¡§the
Enhanced TSP Monitoring Plan¡¨) is required to be submitted to the DEP for
approval at least 1 month before the commencement of construction of the
Project. Details of the Enhanced TSP Monitoring Plan are provided in this Contract
specific EM&A Manual. The air
quality monitoring work under this Contract and Contract HY/2012/08 will follow
the monitoring requirement of enhanced TSP monitoring under the project.
3.1.1.1
Monitoring of the Total Suspended Particulates (TSP) levels
shall be carried out by the Environmental Specialist (ET) (see Section 1) to
ensure that construction works are not generating dust which exceeds the
acceptable level. Timely action should be taken to rectify the situation if an
exceedance is detected.
3.1.1.2
1-hour and 24-hour TSP levels shall be measured to
indicate the impacts of construction dust on air quality. The 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. Upon approval by the Engineer¡¦s
Representative (ER) and the Environmental Protection Department (EPD), 1-hour
TSP levels may be measured by direct reading methods for ad hoc measurements.
3.1.1.3
All relevant data including temperature, pressure,
weather conditions, elapsed time meter reading for the start and stop of the
sampler, identification and weight of the filter paper, any other special
phenomena and work progress of the concerned site shall be recorded in detail
by the ET. A sample data sheet is
shown in Figure 3.1.
3.2.1.1
A high volume sampler in compliance with the following
specifications shall be used for carrying out the 1-hr and 24-hr TSP
monitoring:
(i)
0.6-1.7 m3/min (20-60 SCFM) adjustable flow range;
(ii)
equipped with a timing/control device with +/- 5 minutes
accuracy for 24 hours operation;
(iii)
installed with elapsed-time meter with +/- 2 minutes
accuracy for 24 hours operation;
(iv)
capable of providing a minimum exposed area of 406 cm2
(63 in2);
(v)
flow control accuracy: +/- 2.5% deviation over 24-hr
sampling period;
(vi)
equipped with a shelter to protect the filter and
sampler;
(vii)
incorporated with an electronic mass flow rate controller
or other equivalent devices;
(viii)
equipped with a flow recorder for continuous monitoring;
(ix)
provided with a peaked roof inlet;
(x)
equipped with a manometer;
(xi)
able to hold and seal the filter paper to the sampler
housing in a horizontal position;
(xii)
easy to change the filter; and
(xiii)
capable of operating
continuously for 24-hr period.
3.2.1.2
The Contractor is responsible for provision of the
monitoring equipment and shall ensure that sufficient numbers of high volume
samplers with an appropriate calibration kit are available for carrying out the
baseline monitoring, impact monitoring and ad hoc monitoring. The high volume
samplers shall be equipped with an electronic mass flow controller and be
calibrated against a traceable standard at regular intervals. All the
equipment, calibration kit, filter papers, etc. shall be clearly labelled by
the ET.
3.2.1.3
Calibration of dust monitoring equipment shall be
conducted by the ET upon installation and thereafter at bi-monthly intervals.
The transfer standard shall be traceable to the internationally recognized
primary standard and be calibrated annually. The calibration data shall be
properly documented for future reference by concerned parties, such as the IEC.
All the data shall be converted into standard temperature and pressure
condition.
3.2.1.4
The flow-rate of the sampler before and after the
sampling exercise with the filter in position shall be verified to be constant
and recorded in the data sheet as described in Section 3.1.
3.2.1.5
If the ET proposes to use a direct reading dust meter to
measure 1-hr TSP levels on an ad hoc basis, he shall submit sufficient
information to the IEC to prove that the instrument is capable of achieving a
comparable result as that the High Volume Sampler (HVS) and may be used for the
1-hr sampling. The instrument should also be calibrated regularly and the 1-hr
sampling shall be checked periodically by the HVS to check the validity and
accuracy of the results measured by the direct reading method.
3.2.1.6
Wind data monitoring equipment shall also be provided and
set up at suitable locations for logging wind speed and wind direction near to
the dust monitoring locations. The equipment installation location shall be
proposed by the ET and agreed with the ER, in consultation with the IEC.
3.2.1.7
For installation and operation of wind data monitoring
equipment, the following points shall be observed:
(i)
the wind sensors should be installed on masts at an
elevated level 10 m above ground so that they are clear of obstructions or
turbulence caused by the buildings;
(ii)
the wind data should be captured by a data logger to be
down-loaded for processing at least once a month;
(iii)
the wind data monitoring equipment should be
re-calibrated at least once every six months; and
(iv)
wind direction
should be divided into 16 sectors of 22.5 degrees each.
3.2.1.8
In exceptional situations, the ET may propose alternative
methods to obtain representative wind data upon approval from the ER and
agreement from the IEC.
3.3.1.1
A clean laboratory with constant temperature and humidity
control and equipped with necessary measuring and conditioning instruments
shall be used for sample analysis and equipment calibration and maintenance.
The laboratory shall be HOKLAS accredited.
3.3.1.2
If a site laboratory is set up or a non-HOKLAS accredited
laboratory is hired for carrying out the laboratory analysis, the laboratory
equipment shall be approved by the ER, in consultation with the IEC.
Measurement performed by the laboratory shall be demonstrated to the
satisfaction of the ER and the IEC. The IEC shall conduct regular audits of
the measurements performed by the laboratory to ensure the accuracy of the
results. The ES shall provide the ER and the IEC with one copy each of the
Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B for reference.
3.3.1.3
Filter paper of size 8"x10" shall be labelled
before sampling. It shall be a clean filter paper with no pin holes and shall
be conditioned in a humidity controlled chamber for over 24-hr and be
pre-weighed before use for the sampling.
3.3.1.4
After sampling, the filter paper loaded with dust shall
be kept in a clean and tightly sealed plastic bag. The filter paper shall then
be returned to the laboratory for reconditioning in the humidity controlled
chamber followed by accurate weighing by an electronic balance with readout
down to 0.1mg. The balance shall be
regularly calibrated against a traceable standard.
3.3.1.5
All the collected samples shall be kept in a good
condition for 6 months before disposal.
3.4.1.1
The air quality sensitive receivers, as determined by the
EIA, are shown in Figure 3.2 and
these will also form the recommended dust monitoring locations. In addition,
three extra air monitoring stations are proposed in the approved Enhanced TSP Monitoring
Plan which simultaneously with the air quality impact monitoring in the
EM&A Programme. The air quality monitoring stations
under the Contract is shown Figure 3.2a
and summarized in Table 3.1. The status
and locations of dust sensitive receivers may change after issue of this manual.
If this happens, the ET shall propose updated monitoring locations and seek
approval from the ER and agreement from IEC.
Table 3.1 Air Quality Monitoring Station under
the Contract
Air quality monitoring station |
Location |
Landuse |
No. of Storey |
Horizontal Distance to the Major Construction Area (m) |
|
Northern Landfall |
Toll Plaza |
||||
ASR1 |
Tuen Mun Fireboat Station |
Office |
1 |
<50 |
<50 |
ASR5 |
Pillar Point Fire Station |
Office |
5 |
<50 |
>500 |
AQMS1 |
Previous River Trade Golf |
Bare ground |
0 |
270 |
60 |
ASR6 |
Butterfly Beach Laundry |
Office |
0 |
350 |
<50 |
ASR10 |
Butterfly Beach Park |
Recreational uses |
0 |
>1000 |
170 |
3.4.1.2
When alternative monitoring locations are proposed, the
following preferred locations and factors shall be considered:
(i)
the site boundary or locations close to the major dust
emission source;
(ii)
close to the sensitive receptors; and
(iii)
the prevailing
meteorological conditions.
3.4.1.3
The ET shall agree with the ER, in consultation with the
IEC, the position of the high volume samplers. When positioning the samplers,
the following points shall be noted:
(i)
a horizontal platform with appropriate support to secure
the samplers against gusty wind shall be provided;
(ii)
the distance between the sampler and an obstacle, such as
buildings, shall be at least twice the height that the obstacle protrudes above
the sampler;
(iii)
a minimum of 2 metres of
separation from walls, parapets and penthouses is required for rooftop
samplers;
(iv)
a minimum of 2 metres
separation from any supporting structure, measured horizontally is required;
(v)
no furnace or incinerator flue is nearby;
(vi)
airflow around the sampler is unrestricted;
(vii) the sampler
is more than 20 metres from the dripline;
(viii) any wire
fence and gate, to protect the sampler, shall not cause any obstruction during
monitoring;
(ix)
permission must be obtained to set up the samplers and to
obtain access to the monitoring stations;
(x)
a secured supply of electricity is needed to operate the
samplers; and
(xi)
no two samplers
should be placed less than 2 metres apart.
3.4.1.4
Prior to construction, the dust monitoring schedule shall
be developed by the ET based upon the construction schedule supplied by the
Contractor. The ET shall inform the IEC of the impact monitoring programme such
that he can conduct onsite audits to ensure accuracy of the impact monitoring
results. The environmental monitoring schedule shall be approved by the ER.
Baseline monitoring at
five monitoring stations has been conducted by the ET of HyD
Contract HY/2012/08 in October 2013 and the associated baseline report has been
submitted to the EPD for approval. It is agreed amongst by the Contractor,
RE, IEC that this Contract could make use of the baseline monitoring data collected
by the ET under HY/2012/08 and therefore no baseline monitoring is required under
this Contract.
3.6.1.1
The Enhanced TSP Monitoring Plan will be implemented
simultaneously with the air quality impact monitoring in the EM&A
programme. In addition to the TSP monitoring at ASR1 and ASR5, monitoring will
also be undertaken at the additional monitoring stations AQMS1, AQMS2 and ASR10
following the frequency of air quality impact monitoring stated in the EM&A
Manual. The data collected will be used to provide an indication of whether
there is any significant increase in TSP levels upon commencement of
construction activities of the Northern Connection, toll plaza and tunnel
buildings. TSP monitoring, including those required under the approved EM&A
Manual (ie for ASR1 andASR5 only) and this Enhanced
TSP Monitoring Plan, will not be implemented during
the TCSS installation works which will not involve any civil works.
3.6.1.2
The major sources of dust nuisance arising from the
Northern Connection, toll plaza and tunnel buildings are related to excavation,
slope works, foundation works, construction of road and superstructures, wind
erosion from reclaimed areas, open sites and stockpiling areas. Therefore
during these construction activities, the TSP monitoring frequency will be
increased at all air quality monitoring stations such that any deteriorating
air quality can be readily detected and timely action taken to rectify the
situation. The Enhanced TSP Monitoring Plan during construction phase is
summarized in Table 3.2.
Table 3.2 Enhanced TSP Monitoring Plan ¡V
Construction Phase
Monitoring Parameter |
Monitoring Location |
Frequency |
Monitoring Condition |
|
1-hour TSP |
ASR1, ASR5, ASR10, AQMS1, AQMS2 |
3 times per day
every six days |
Throughout the
Northern Connection, toll plaza and tunnel buildings construction works |
|
24-hour TSP |
ASR1, ASR5, ASR10, AQMS1, AQMS2 |
Daily every six
days |
Throughout the
Northern Connection, toll plaza and tunnel buildings construction works |
|
1-hour TSP |
ASR1, ASR5, ASR10, AQMS1, AQMS2 |
3 times per day
every three days |
Northern Connection During excavation
works for launching shaft, excavation work for Cut and Cover Tunnel and Cut
and Cover Tunnel Construction Toll Plaza During excavation,
slope works, construction of road an superstructures and wind erosion from
open sites and stockpiling areas Tunnel Buildings During excavation,
foundation works, construction of superstructures and wind erosion from open
sites and stockpiling areas |
|
24-hour TSP |
ASR1, ASR5, ASR10, AQMS1, AQMS2 |
Daily every three
days |
Northern Connection During excavation
works for launching shaft, excavation work for Cut and Cover Tunnel and Cut
and Cover Tunnel Construction Toll Plaza During excavation,
slope works, construction of road an superstructures and wind erosion from
open sites and stockpiling areas Tunnel Buildings During excavation,
foundation works, construction of superstructures and wind erosion from open
sites and stockpiling areas |
|
3.6.1.3
The specific time to start and stop the 24-hr TSP
monitoring shall be clearly defined for each location and be strictly followed
by the operator.
3.6.1.4
In accordance with the PS Clause 25.32 under this
contract, dust monitoring by the ET under this Contract could be exempted until
the completion of the air quality monitoring carried out by the ET of HyD Contract No. HY/2012/08. It is agreed amongst by the
Contractor, RE, IEC that the ET under this Contract could make use of impact
air quality monitoring data collected by the ET under HY/2012/08 for its own
reporting.
3.7.1.1
The baseline monitoring results will form the basis for
determining the air quality criteria for the impact monitoring. The ET shall
compare the impact monitoring results with air quality criteria set up for
24-hour TSP and 1-hour TSP. The
method of derivation and the proposed Action and Limit Levels are shown in Tables
3.3 and 3.3a respectively.
Table 3.3 Action
and Limit Levels for Air Quality
Parameters |
Action |
Limit |
24 Hour TSP Level in £gg/m3 |
For baseline level ≤ 200 £gg/m3 Action level = (Baseline *1.3+ Limit level )/2; For baseline level >200 £gg/m3 Action level = Limit level |
260 |
1 Hour TSP Level in £gg/m3 |
For baseline level ≤ 384 £gg/m3 Action level = (Baseline *1.3+ Limit level )/2; For baseline level
>384 £gg/m3 Action level = Limit level |
500 |
Table 3.3a TSP
Action and Limit Levels for Impact Air Quality Monitoring
Parameters |
Air
Quality Monitoring Stations |
Action Level (£gg/m3) |
Limit Level (£gg/m3) |
24 hour TSP (£gg/m3) |
ASR1 |
213 |
260 |
ASR5 |
238 |
260 |
|
AQMS1 |
213 |
260 |
|
AQMS2 |
238 |
260 |
|
ASR10 |
214 |
260 |
|
1 hour TSP (£gg/m3) |
ASR1 |
331 |
500 |
ASR5 |
340 |
500 |
|
AQMS1 |
335 |
500 |
|
AQMS2 |
338 |
500 |
|
ASR10 |
337 |
500 |
3.7.1.2
In case of non-compliance with the air quality criteria,
more frequent monitoring exercise shall be conducted within 24 hours after the
result is obtained. This additional
monitoring shall be continued until the excessive dust emission or the deterioration
in air quality is rectified. The
Event/Action Plan for air quality is given in the attached Table 3.4.
3.7.1.3
The Independent Environmental Checker (IEC) shall be
empowered to audit the environmental performance of construction,
all aspects of the EM&A programme, validate and confirm the accuracy of
monitoring results, monitoring equipment, monitoring locations and procedures.
If any exceedances occur, the IEC shall follow the actions stated in the Event
and Action Plan in Table 3.4.
3.8.1.1
The EIA report has recommended dust control and
mitigation measures. The Contractor
shall be responsible for the design and implementation of the following measures.
The recommended construction dust
mitigation measures are summarized in the Air Quality Environmental Mitigation
Implementation Schedule provided in Appendix A.
(i)
all
unpaved roads/exposed area shall be watered which results in dust suppression
by forming moist cohesive films among the discrete grains of road surface
material. An effective watering
programme of twice daily watering with complete coverage,
is estimated to reduce by 50%. This
is recommended for all areas in order to reduce dust levels to a minimum;
(ii)
Watering on all exposed soil within the
Project site and associated work areas in Tuen Mun area throughout the
construction phase for at least 12 times per day;
(iii)
The Contractor shall, to the satisfaction of
the Engineer, install effective dust suppression measures and take such other
measures as may be necessary to ensure that at the Site boundary and any nearby
sensitive receiver, dust levels are kept to acceptable levels;
(iv)
The Contractor shall not burn debris or other
materials on the works areas;
(v)
in hot, dry or windy weather, the watering
programme shall maintain all exposed road surfaces and dust sources wet;
(vi)
where
breaking of oversize rock/concrete is required, watering shall be implemented
to control dust. Water spray shall be used during the handling of fill material
at the site and at active cuts, excavation and fill sites where dust is likely
to be created;
(vii) open
dropping heights for excavated materials shall be controlled to a maximum
height of 2m to minimize the fugitive dust arising from unloading;
(viii) during transportation by truck, materials
shall not be loaded to a level higher than the side and tail boards, and shall
be dampened or covered before transport. Materials having the potential to
create dust shall not be loaded to a level higher than the side and tail
boards, and shall be covered by a clean tarpaulin. The tarpaulin shall be
properly secured and shall extend at least 300mm over the edges of the side and
tail boards;
(ix)
no
earth, mud, debris, dust and the like shall be deposited on public roads. Wheel washing facility shall be usable
prior to any earthworks excavation activity on the site;
(x)
areas of exposed soil shall be minimized to
areas in which works have been completed shall be restored as soon as is
practicable; and
(xi)
all
stockpiles of aggregate or spoil shall be enclosed or covered and water applied
in dry or windy condition.
3.8.1.2
If the above measures are not sufficient to restore the
air quality to acceptable levels upon the advice of the ET, the Contractor
shall liaise with the ET regarding other mitigation measures and consult the
IEC for their effectiveness, and then propose these measures to the ER for
approval prior to the implementation of the measures.
Table
3.4 Event
/ Action Plan for Air Quality
EVENT |
ACTION |
|||
ET(1) |
IEC(1) |
SOR(1) |
Contractor(s) |
|
Action
Level |
||||
Exceedance
recorded |
1
Identify the source. 2
Repeat measurements to
confirm findings. If two consecutive measurements exceed Action Level, the
exceedance is then confirmed. 3
Inform the IEC and the
SOR 4
Investigate the cause of exceedance and
check Contractor¡¦s working procedures to
determine possible mitigation to be implemented. 5
If the exceedance is confirmed to be
Project related after investigation, increase monitoring frequency to daily. 6
Discuss with the IEC and the Contractor
on remedial actions required. 7
If exceedance continues, arrange meeting
with the IEC and the SOR. 8
If exceedance stops, cease additional
monitoring. |
1
Check monitoring data
submitted by the ET. 2
Check the Contractor¡¦s
working method. 3
If the exceedance is
confirmed to be Project related after investigation, discuss with the ET and
the Contractor on possible remedial measures. 4
Advise the SOR on the
effectiveness of the proposed remedial measures. 5
Supervisor
implementation of remedial measures. |
1
Confirm receipt of
notification of failure in writing. 2
Notify the Contractor. 3
Ensure remedial measures
properly implemented. |
1
Rectify any unacceptable practice. 2
Amend working methods if appropriate 3
If the exceedance is
confirmed to be Project related, submit proposals for remedial actions to IEC
within 3 working days of notification 4
Implement the agreed
proposals 5
Amend proposal if
appropriate. |
Limit Level |
||||
Exceedance
recorded |
1.
Identify the source. 2.
Repeat measurement to confirm finding. If
two consecutive measurements exceed Limit
Level, the exceedance is then confirmed. 3.
Inform the IEC, the SOR, the DEP and the
Contractor. 4.
Investigate the cause of exceedance and
check Contractor¡¦s working procedures to determine possible mitigation to be
implemented. 5.
If the exceedance is confirmed to be
Project related after investigation, increase monitoring frequency to daily. 6.
Carry out analysis of the Contractor¡¦s
working procedures to determine possible mitigation to be implemented. 7.
Arrange meeting with the IEC and the SOR
to discuss the remedial actions to be taken. 8.
Assess effectiveness of the Contractor¡¦s
remedial actions and keep the IEC, the DEP and the SOR informed of the
results. 9.
If exceedance stops, cease additional monitoring. |
1
Check monitoring data submitted by the ET. 2
Check Contractor¡¦s
working method. 3
If the exceedance is
confirmed to be Project related after investigation, discuss with the ET and
the Contractor on possible remedial measures. 4
Advise the SOR on the effectiveness of the proposed remedial measures. 5
Supervisor
implementation of remedial measures. |
1.
Confirm receipt of notification of
failure in writing. 2.
Notify the Contractor. 3.
If the exceedance is confirmed to be
Project related after investigation, in consultation with the IEC, agree
with the Contractor on the
remedial measures to be implemented. 4.
Ensure remedial measures are properly
implemented. 5.
If exceedance continues, consider what activity of the work is
responsible and instruct the Contractor to stop that activity of work until
the exceedance is abated. |
1
Take immediate action to
avoid further exceedance. 2
If the exceedance is
confirmed to be Project related after investigation, submit proposals for
remedial actions to IEC within 3 working days of notification. 3
Implement the agreed
proposals. 4
Amend proposal if
appropriate. 5
Stop the relevant
activity of works as determined by the SOR until the exceedance is abated. |
Note: ET ¡V
Environmental Team, IEC ¡V Independent Environmental Checker, SOR ¡V Supervising
Office¡¦s Representative
4.1.1.1
The TM-CLKL EIA study concluded that no existing noise
sensitive receiver (NSR) has been identified within the Study Area, and no
planned NSR has been identified from the Project Site. Based upon this, no
noise monitoring is necessary for either the construction or operation phases.
4.1.1.2
Regular site inspections and audits will be carried out
during the construction phase in order to confirm compliance with the
regulatory requirements and conformity of the Contractor with regard to noise
control and contract conditions.
4.8.1.1
As no impacts are predicted during the construction stage
at the existing NSRs in north Lantau, no specific mitigation measures have been
recommended. However, the
Contractor will be responsible for ensuring noise levels are minimized as far
as possible through the application of good site practices, including
maintenance of equipment. During the operational phase, no mitigation is
required.
5.1.1.1
No marine works will be undertaken under Contract No.
HY/2013/12. Based upon this, no
water quality monitoring is necessary for either the construction or operation
phases.
5.2.1.1
Not used.
5.2.1.2
Prior to the
commencement of the construction work, a detailed site drainage management plan
should be submitted to EPD. The plan should cover measures to minimize all
potential water quality impact arising from the surface runoffs of all the
related constructions.
5.2.1.3
The guidelines outlined
in the Practice Note for Professional Persons (ProPECC),
Construction Site Drainage (PN 1/94) should be adopted to control construction site
runoff. Mitigation measures to minimise water quality
impacts from construction site runoff and wastewater and sewage generated from
construction activities are:
Provision of site drainage systems over the entire
construction site with sediment control facilities. Regular inspection and
maintenance of the site drainage systems are required to ensure proper and
efficient operation at all times.
Sedimentation tanks or package treatment systems are
required to treat the large amount of sediment-laden wastewater generated from
foundation construction work, wheel washing and site runoff. Any construction activities that generate
wastewater with high concentrations of SS should also be collected to these
facilities for proper treatment prior to disposal. Treated wastewater can be reused for
vehicle washing, dust suppression and general cleaning. Bentonite slurry used in bore-pile
construction should be reconditioned and reused to minimize the disposal volume
of the used slurry.
The construction programme should be properly planned to
avoid soil excavation in rainy seasons. Exposed stockpiles of excavated soils
or construction materials should be covered with tarpaulin or impervious sheets
to avoid release of pollutants into the drainage channels.
Sewage generated from site toilets and canteen should be
collected using a temporary storage system. Chemical toilets should be provided
at different locations for use by the workers on site. Licensed waste
collectors should be employed for collection and disposal of the sewage. The
drainage system for collection of wastewater generated from canteen, if any,
should be equipped with grease trap capable of providing at least 20 minutes retention
during peak flow.
Wheel washing facilities should be installed at all site
entrances/exits.
An emergency plan should be developed by the contractors
to deal with accidental spillage of chemicals.
5.2.1.4
Upon completion of the
TM-CLKL / HKLR / HKBCF development, stormwater drainage
systems would be completed to collect stormwater
generated from the whole area including new roads. Sewage generated from the
TM-CLKL southern landfall and
HKBCF development would be treated on site to fulfill effluent limit for
discharge. Additional mitigation measures would not be required.
5.2.1.5
Not used.
5.2.1.6
The EIA Report has recommended construction and
operational phase mitigation measures. All the prepared mitigation measures are
summarized in the Environmental Mitigation Implementation Schedules in Appendix A.
6.1.1.1
The EIA has
recommended that an EM&A for ecology is undertaken during the design,
construction and operational phases of the project. The objectives of the design
phase EM&A are to prepare detailed specifications for translocation works to
be undertaken prior to construction. The construction and operational EM&A objectives
are to ensure that the ecological contract works and construction mitigation
procedures recommended in the EIA are carried out as specified and are
effective. The construction and operational phase EM&A will be carried out as
part of the site monitoring and audit programme
6.2.1.1
Not used.
6.2.1.2
The construction phase ecological audit is concerned with
checking the effectiveness of the implementation of the ecology contract works,
together with auditing the effectiveness of site mitigation. Operational phase
EM&A will comprise the audit of the reestablishment of habitat areas and
the on-going effectiveness of mitigation measures as appropriate. The
operational phase EM&A shall be undertaken during the Contractor¡¦s one year
maintenance period. The overall
procedures for the ecological EM&A during construction and operation are
shown in Figures 1.2 and 6.1.
6.3.1.1
Ecological measures proposed by the EIA to mitigate the
ecology impacts of the scheme will be incorporated into the detailed design of
the project. In particular, ecology specifications will be produced for the
elements detailed in Table 6.1 below.
Table 6.1 Ecological
Design Specifications
Number |
Specification |
1 |
Hoarding along the works boundary for protecting
the pitcher plants and its surrounding
habitat. |
6.3.1.2
The specifications should be issued to the EPD and AFCD
and other relevant Authorities for approval before being implemented prior to
construction.
6.3.1.3
Designs and specifications will be prepared during the
detailed design stage by suitably qualified staff on the design team. The
designs will be checked by a design auditor(s) to ensure that the measures are
fully incorporated and that potential conflicts with the engineering are
resolved prior to construction. In
the event of a non conformity, the Event/Action plan
detailed in Table 6.2 below shall be followed by the relevant parties.
Table
6.2 Event
/ Action Plan for Design Phase
Action
Level |
Ecology
Auditor |
Project
Engineer (PE) |
Project Ecologist (PEC) |
Non
Conformity (with Design Standards and Specification) |
Identify Source Inform PE and PEC Discuss remedial actions with PE, and PEC Verify remedial actions when complete |
Notify PEC Discuss remedial actions with PEC Ensure remedial designs are fully incorporated |
Amend designs Discuss remedial actions with PE |
6.4.1.1
Ecological
baseline EM&A will consist of undertaking the following:
a
walk-over survey, prior to construction works, of the land and streams where
works will be undertaken. It may be necessary to rope off and protect specific
habitats or species of special interest identified during the ecological
surveys;
6.4.2.1
The purpose of
the walk over survey will be to confirm the existing ecological conditions, with
reference to the habitat maps included in the EIA Report and the established
baseline conditions, in relation to the extent and condition of the habitats
and species noted during the walkover survey. No detailed ecological surveys of flora
and fauna will be required at this stage.
6.4.3.1
During the Environmental Impact Assessment (EIA) Stage of
the TM-CLKL (which was approved on 23 October 2009), no Pitcher Plant (Nepenthes
mirabilis) was identified within the proposed works area of the toll plaza.
It was believed that the Pitcher Plant area identified would not be directly
impacted by the toll plaza works and the only mitigation measures required were
to install hoarding at the perimeter of the proposed works area to avoid encroachment
into the Pitcher Plant area. There was no requirement for Pitcher Plant transplantation
in the EIA, Environmental Monitoring and Audit (EM&A) Manual, and Environmental
Permit (EP). However, during an ecology survey for the TMWB EIA in late 2011,
Pitcher Plant was identified within the proposed works area for the TM-CLKL
toll plaza. Pitcher Plant is
protected under the Forestry Regulations (subsidiary legislation of the Forests
and Countryside Ordinance, Cap. 96) and the Protection of Endangered Species of
Animals and Plants Ordinance (Cap. 586). Discussion with Agriculture, Fisheries
and Conservation Department (AFCD) (27 October 2012) has confirmed that if the
TM-CLKL project was to impact the Pitcher Plant area that further mitigation
measures for the Pitcher Plant would be required under the TM-CLKL project. As
such, the project proponent Highways Department (HyD)
has appointed AECOM to undertake baseline survey and propose a transplantation strategy
for Pitcher Plant to be affected by the proposed TM-CLKL project.
6.4.3.2
During baseline survey in 2013, a total of 280 numbers of
Picher Plants were identified within the construction site. The
health and condition of the Pitcher Plant individuals was assessed and each
plant was tagged and photographed by Pegasus Greenland Ltd. All plants were assessed as being in
¡§fair¡¨ health condition. As the plants mostly grew on rock faces with thin
soils, the successful removal and transport of the existing individuals is
likely to be challenging given the weak nature of the plant¡¦s roots.
6.4.3.3
Baseline survey to confirm the exact quantity of the
Pitcher Plant in relation to this Contract will be conducted by the Project
Ecologist. The baseline monitoring result
as well as the translocation plan shall be submitted for EPD and AFCD for
approval.
6.5.1.1
During the
construction and operational phases the ET will be required to undertake the
following:
continued audit
of the translocation works as per the requirements
audit of
habitat protection measures as follows:
-
in order to
avoid damage and disturbance to the protected Pitcher Plant species and
surrounding natural habitat,
-
ensure placement of hoarding along the works
boundary of the Project Site before commencement of works to prevent vehicle
movements and encroachment of personnel into adjacent areas. No openings in the
hoarding should be provided on the north of the Toll Plaza work areas to avoid
access to the uphill area where the Pitcher Plants are located;
-
ensure that
work site boundaries are not breached and that damage does not occur to
surrounding areas;
-
provided and
scheduled environmental briefing/training sessions for site staff to raise
their awareness on environmental protection;
-
ensure
placement of equipment is within designated areas within the existing disturbed
land;
-
ensure
construction activities are restricted to within the proposed works boundary;
-
ensure spoil
heaps are be covered at all times;
-
ensure that
disturbed areas are reinstated immediately after completion of the works;
-
ensure enhancement planting works undertaken.
6.5.2.1
A monitoring programme should be established to monitor
the survival of the Pitcher Plants and evaluate the success of the
transplantation exercise. A separate detailed monitoring plan would be
submitted to AFCD by the appointed contractor responsible for the
transplantation exercise. This will include roles and responsibilities,
monitoring parameters, event and action plan, adaptive management, etc.
6.5.2.2
For the overall audit of habitat protection, in the event
of non-compliance, the Event /Action plan detailed in Table 6.3 below should
be implemented.
Table
6.3 Event
/ Action Plan for General Ecology
Action
Level |
ET |
IEC |
ER |
Contractor |
Non- conformity on one
occasion |
Identify
Source
Inform the
IEC and the ER
Discuss
remedial actions with the IEC, the ER and the Contractor
Monitor
remedial actions until rectification has been completed |
Check report
Check the
Contractor's working method
Discuss with
the ET and the Contractor on possible remedial measures
Advise the ER
on effectiveness of proposed remedial measures.
Check
implementation of remedial measures. |
Notify
Contractor
Ensure
remedial measures are properly implemented
Consider and
instruct, if necessary, the Contractor to slow down
or to stop all or part of the works in the case of a serious nonconformity
until situation rectified. |
Amend working
methods
Rectify
damage and undertake any necessary replacement |
Repeated Non conformity |
Identify
Source
Inform the
IC(E) and the ER
Increase
monitoring frequency
Discuss
remedial actions with the
IC(E), the ER
and the Contractor
Monitor
remedial actions until rectification has been completed
If exceedance
stops, cease additional monitoring |
Check
monitoring report
Check the
Contractor's working method
Discuss with
the ES and the Contractor on possible remedial measures
Advise the ER
on effectiveness of proposed remedial measures
Supervise
implementation of remedial measures |
Notify the
Contractor
Ensure
remedial measures are properly implemented
Consider and
instruct, if necessary, the Contractor to slow down
or to stop all or part of the works in the case of a serious nonconformity until
situation rectified. |
Amend working
methods
Rectify
damage and undertake any necessary replacement |
Note: ET ¡V Environmental
Specialist, IC(E) ¡V Independent Checker (Environmental), ER ¡V Engineer¡¦s
Representative
6.6.1.1
Ecological mitigation and enhancement measures
recommended by the EIA are largely related to the protection of key floral and fauna species and are summarized below. The ecological mitigation and
enhancement measures to be implemented during the construction phase are as
following.
Use of fencing along the works boundary to avoid
disturbance to the protected pitcher plant species and the surrounding habitat;
Regularly check the work site boundaries to ensure that
they are not breached and that damage does not occur to surrounding areas;
Provided environmental briefing/ training session for
site staff
6.6.1.2
The mitigation measures shall be audited at least once
every week as part of the site audit programme. In the event of a non-compliance, the Event /Action plan detailed above
shall be followed by the relevant parties.
6.6.1.3
Not used.
7.1.1.1
The EIA has
recommended landscape and visual mitigation measures to be undertaken during
both the construction and operational phases of the project. This section outlines the monitoring and
audit of these measures.
7.1.1.2
The
sensitive receivers are shown in Figure 7.1.1.1 to 7.1.1.2, 7.2.1.1 to 7.2.1.2, 7.3.1.1,
7.3.1.3 and 7.3.2.1.
7.2.1.1
The following
legislation, standards and guidelines are applicable to landscape and visual
impact assessment associated with the construction and operation of the
project:
Environmental Impact Assessment Ordinance (Cap.499.S.16)
and the Technical Memorandum on EIA Process (EIAO TM), particularly Annexes 10
and 18
Environmental Impact Assessment Ordinance Guidance Note
8/2002
ETWB No. 36/ 2004 - Advisory Committee on the Appearance
of Bridges and Associated Structures (ACABAS)
ETWB TCW No. 10/2005 - Planting on Footbridges and
Flyovers
ETWB TCW No. 2/2004 - Maintenance of Vegetation and Hard
Landscape Features
ETWB TCW No. 29/2004 - Registration of Old and Valuable
Trees, and Guidelines for their Preservation
ETWB TCW No. 3/2006 - Tree Preservation
ETWB TCW No. 5/2005 on Protection of natural
streams/rivers from adverse impacts arising from construction works
Hong Kong International Airport Approved Plant Species
List (Revision 3: June 2007)
Hong Kong Planning Standards and Guidelines, particular
Chapter 4, Chapter 8, Chapter 10 and Chapter 11
HQ/GN/13 - Interim Guidelines for Tree Transplanting
Works under Highways Department¡¦s Vegetation Maintenance Ambit
HyDTC No.
3/2008 - Independent Vetting of Tree Works under the Maintenance of Highways
Department
HyDTC No.
5/2000 on Control in the Use of Shotcrete (Sprayed
Concrete) in Slope Works
Protection of Endangered Species of Animals And Plants
Ordinance (Cap 586)
Study on Landscape Value Mapping of Hong Kong
Town Planning Ordinance (Cap 131)
WBTC No. 17/2000 on Improvement to the Appearance of
Slopes
WBTC No. 25/92 - Allocation of Space for Urban Street
Trees
WBTC No. 25/93 on Control of Visual Impact of Slopes
WBTC No. 7/2002 - Tree Planting in Public Works
7.3.1.1
The design,
implementation and maintenance of landscape and visual mitigation measures
should be checked to ensure that they are fully realised
and that potential conflicts between the proposed landscape measures and any
other project works and operational requirements are resolved at the earliest
possible date and without compromise to the intention of the mitigation
measures.
7.3.1.2
Site inspection
and audit is necessary in the operation stage.
Table 7.1 Monitoring
Programme
Stage |
Monitoring Task |
Monitoring Report |
Form of Approval |
Frequency |
Design |
Monitoring of
design works against the recommendations of the landscape and visual impact
assessments within the EIA should be undertaken during detailed design and tender
stages, to ensure that they fulfil the intentions of the mitigation measures.
Any changes to the design, including design changes on site should also be
checked. |
Report by ER confirming
that the design conforms to requirements of EP |
Approved by
Client |
At Completion
of Design Stage |
Construction |
Monitoring of
the contractor¡¦s operations during the construction period. |
Report on Contractor's
compliance, by ET |
Counter ¡V signature
of report by IEC |
Weekly |
Establishment
Works |
Monitoring of
the planting works during the 24-month Establishment period after completion
of the construction works. |
Report on Contractor's
compliance, by ET |
Counter ¡V signature
of report by IEC |
3 months |
Design Phase
7.3.1.3
The mitigation
measures proposed within the EIA to mitigate the landscape and visual impacts
of the scheme should be embodied into the detailed engineering design and landscape
design drawings and contract documents. Detailed landscaping drawings and
specification should be checked during detailed design stage and before tender stage
by a Registered Landscape Architect to ensure that the measures are fully incorporated
and that potential conflicts with civil engineering, geo-technical, structural,
lighting, signage, drainage, underground utility and operational requirements
are resolved prior to construction. Monitoring of design works against the
recommendations of the landscape and visual impact assessments within the EIA should
be undertaken when the designs are produced to ensure that they fulfil the intentions
of mitigation measures.
Construction
& Establishment Period
7.3.1.4
The
implementation of landscape construction works and subsequent maintenance operations
during the 12-month establishment period must be supervised by fully qualified
Landscape Resident Site Staff (Registered Landscape Architect or Professional
Member of the Hong Kong Institute of landscape Architects).
7.3.1.5
Measures to
mitigate landscape and visual impacts during construction should be checked and
monitored by a Registered Landscape Architect to ensure compliance with the
intended aims of the mitigation measures.
7.3.1.6
The progress of
the engineering works shall be regularly reviewed on site to identify the
earliest practical opportunities for the landscape works to be undertaken.
7.4.1.1
A one off
survey shall be conducted prior to commencement of any construction works. A
photographic record of the site at the time of the contractor¡¦s possession of the
site shall be prepared by the Contractor and approved by the ER. The approved photographic
Record shall be submitted to the Project proponent, ET, IEC and EPD for record.
7.5.1.1
Should
non-compliance of the landscape and visual impacts occur, actions in accordance
with the action plan stated in Table 7.2
should be carried out.
Table 7.2 Event
and Action Plan for Landscape and Visual Impact
Event ACTION LEVEL |
ACTION |
|||
ET |
IEC |
ER |
Contractor |
|
Design Check |
Check final design
conforms to the requirements of EP and prepare report. |
Check report.
Recommend remedial
design if necessary |
Undertake remedial
design if necessary |
|
Non- conformity
on one occasion |
Identify
Source
Inform IEC
and ER
Discuss
remedial actions with IEC, ER and Contractor
Monitor remedial
actions until rectification has been completed |
Check report Check Contractor's working method Discuss with ET and Contractor on possible remedial measures Advise ER on effectiveness of proposed remedial measures. Check implementation of remedial measures |
Notify Contractor
Ensure remedial
measures are properly implemented |
Amend working
methods
Rectify damage
and undertake any necessary replacement |
Repeated Non-
conformity |
Identify
Source
Inform IEC
and ER
Increase monitoring
frequency
Discuss
remedial actions with IEC, ER and Contractor
Monitor remedial
actions until rectification has been completed
If
nonconformity stops, cease additional monitoring |
Check monitoring report Check Contractor's working method Discuss with ET and Contractor on possible remedial measures Advise ER on effectiveness of proposed remedial measures Supervise implementation of remedial measures |
Notify Contractor
Ensure remedial
measures are properly implemented |
Amend working
methods
Rectify damage
and undertake any necessary replacement |
7.6.1.1
The landscape
and visual impact assessment of the EIA recommends a series on mitigation
measures, as noted below:
Design
Landscape and Visual Mitigation Measures
The large
surface of the retaining wall along the toll plaza area shall adopt a patterned/
smoother finishes and texture design to break the large surface. Climber treatment is proposed to soften
the structures (DM1),
The colour and
shape of the toll control buildings, ventilation building and administration
building shall adopt a design which could blend it into the vicinity elements,
and the details will be developed in detailed design stage (DM2),
Round angle, patterned
finishes, and oval shaped pier were considered in the viaduct design, and
further details will be developed under ACABAS submission (DM3),
Details of the
street furniture will be developed in the detailed design stage (DM4),
Aesthetic
design of the viaduct, retaining wall and other structures will be developed
under ACABAS submission (DM5).
Landscape and
Visual Mitigation Measures during Construction Phase
Existing trees
on boundary of the Project Area shall be carefully protected during construction.
Detailed Tree Protection Specification shall be provided in the Contract
Specification. Under this specification, the Contractor shall be required to
submit, for approval, a detailed working method statement for the protection of
trees prior to undertaking any works adjacent to all retained trees, including
trees in contractor¡¦s works areas. (Tree protection measures will be detailed
at Tree Removal Application stage) (CM1),
Trees
unavoidably affected by the works shall be transplanted where practical. Trees will be transplanted straight to
their final receptor site and not held in a temporary nursery. A detailed Tree
Transplanting Specification shall be provided in the Contract Specification.
Sufficient time for necessary tree root and crown preparation periods shall be
allowed in the project programme (CM2),
Hillside and
roadside screen planting to proposed roads, associated structures and slope
works (CM3),
Hydroseeding or sheeting of soil stockpiles with
visually unobtrusive material (in earth tone) (CM4),
Screening of
construction works by hoardings around works area in visually unobtrusive colours, to screen works (CM5),
Control
night-time lighting and glare by hooding all lights (CM6),
Ensure no
run-off into water body adjacent to the Project Area (CM7),
Avoidance of
excessive height and bulk of buildings and structures (CM8),
Recycle/Reuse
all felled trees and vegetation, e.g. mulching (CM9),
Compensatory
tree planting shall be provided to the satisfaction of relevant Government
departments. Required numbers and locations of compensatory trees shall be
determined and agreed separately with Government during the Tree Felling
Application process under ETWBTC 3/2006 (CM10).
Landscape and Visual Mitigation Measures during Operation
Phase
Re-vegetation
of affected woodland/shrubland with native species
(OM1),
Tall buffer
screen tree / shrub / climber planting should be incorporated to soften hard
engineering structures and facilities (OM2),
Streetscape
elements (e.g. paving, signage, street furniture, lighting etc.) shall be sensitively
designed in a manner that responds to the local context, and minimizes potential
negative landscape and visual impacts. Lighting units should be directional and
minimise unnecessary light spill (OM3),
Structure,
ornamental tree / shrub / climber planting should be provided along roadside
amenity strips, central dividers and newly formed slopes to enhance the townscape
quality and further greenery enhancement (OM4),
Aesthetically
pleasing design (visually unobtrusive and non-reflective) as regard to the
form, material and finishes shall be incorporated to all buildings, engineering
structures and associated infrastructure facilities (OM5),
Avoidance of
excessive height and bulk of buildings and structures (OM6).
8.1.1.1
The Contractor
is responsible for waste control within the construction site, removal of waste
material produced from the site and to implement any mitigation measures to
minimize waste or redress problems arising from the waste from the site.
Activities during the construction phase will result in the generation of a variety
of wastes which can broadly be classified into distinct categories based on their
nature and the options for their disposal. These include:
Excavated construction and demolition (C&D) materials
suitable for public fill;
Construction and demolition waste, including cleared
vegetation, which is not suitable for public fill;
Chemical waste;
Sewage; and
General refuse.
8.1.1.2
Not
used.
8.1.1.3
Not
used.
8.1.1.4
Not
used.
8.1.1.5
The
Construction and Demolition (C&D) materials generated from the TM-CLKL project
will comprise the following:
Surplus surcharge from the reclamation works;
Excavation materials from the land viaduct construction,
slope cutting, utility diversions, site formation of the toll plaza and
administration buildings formation; and
Road and pavement demolition waste from the modification
of the existing roads for new roads connections.
8.1.1.6
For
construction of Contract no. HY/2013/12, construction and Demolition (C&D)
materials include public fill (inert material) and C&D wastes (non-inert
material). Public fill should comprise broken concrete, brick and aggregates,
etc. C&D wastes should comprise unwanted materials generated during construction,
including rejected structures and materials, materials which have been over
ordered or are surplus to requirement and materials, which have been used and
discarded. The disposal sites for
the wastes generated from the project as shown in Table 8.1.
Table 8.1 Estimated
quantities of C&D materials and waste from Contract No. HY/2013/12
Type of Waste |
Examle |
Disposal Site |
Estimate Volume |
Excavated material |
Rock
Rubble
Boulder
Soil
Sand |
Tuen Mun Area 38 Fill Bank¡V for inert construction
waste excluding slurry and
bentonite;
Tseung Kwan O Area 137 Fill Bank ¡V for slurry and
bentonite
Other disposal outlets as approved by the Engineer
Representative
Reused in our contract
Reused in other contract
Public fill |
Public fill: 13000m3 |
C&D
material ¡V public fill (inert) |
Broken concrete
Brick
Aggregate
Asphalt
Tile
Masonry
Used bentonite |
Reused on
site: 5500m3 |
|
Reused off site:8000 m3 |
|||
C&D
material ¡V C&D waste (non-inert) |
Wood
Bamboo
Plastic |
West New Territories (WENT) Landfill or other disposal
outlets as approved by the Engineer Representative |
4800 m3 |
Chemical waste |
Used oil
Spent solvent |
Chemical Waste Treatment Facility at Tsing Yi
Other approved facility |
30 m3 |
Chemical waste (Asbesto) |
Asbestos Cement pipe |
Landfill or other disposal outlets as approved by the
Engineer |
0 |
General Refuse |
Packaging waste
Office waste |
West New Territories (WENT)Landfill or other disposal
outlets as approved by the Engineer |
2400 m3 |
Sewage |
Chemical toilet
Site office toilet |
Licensed
contractor
Discharge to existing sewer |
30 m3/d 20 m3/d |
8.1.1.7
Not
used.
8.1.1.8
Not
used.
8.1.2.1
Based on the
mitigation measures recommended in the EIA Report, the following measures, as
summarized in the Environmental Mitigation Implementation Schedule in Appendix A, shall
be undertaken when handling waste material during construction phase:
(i)
The
requirements as stipulated in the ETWB TC(W)
No.19/2005 Environmental Management on Construction Sites and the other
relevant guidelines should be included in the Particular Specification for the Contractor
as appropriate.
(ii)
The TM-CLKL
Contractor should be requested to submit an outline Waste Management Plan (WMP)
prior to the commencement of construction work, in accordance with the ETWB TC(W) No.19/2005 so as to provide an overall framework of
waste management and reduction. The
WMP should include:
-
Waste
management policy;
-
Record of
generated waste;
-
Waste reduction
target;
-
Waste reduction
programme;
-
Role and
responsibility of waste management team;
-
Benefit of
waste management;
-
Analysis of
waste materials;
-
Reuse,
recycling and disposal plans;
-
Transportation
process of waste products; and
-
Monitoring and
action plan.
(iii)
The waste
management hierarchy below should be strictly followed. This hierarchy should be adopted to
evaluate the waste management options in order to maximize the extent of waste
reduction and cost reduction. The records of quantities of waste generated,
recycled and disposed (locations) should be properly documented.
(iv)
A trip-ticket
system should be established in accordance with ETWB(W)
31/2004 and Waste Disposal (Charges for Disposal of Construction Waste)
Regulation to monitor the disposal of public fill and solid wastes at public
filling facilities and landfills, and to control fly-tipping. A trip ticket system
would be included as one of the contractual requirements for the Contractor to
strictly implement. The Engineer would also regularly audit the effectiveness
of the system.
(v)
A recording
system for the amount of waste generated, recycled and disposed (locations)
should be established. The future Contractor should also provide proper
training to workers regarding the appropriate concepts of site cleanliness and
waste management procedures, e.g. waste reduction, reuse and recycling all the
time.
(vi)
The CEDD should
be timely notified of the estimated spoil volumes to be generated and the
Public Fill Committee should be notified and agreement sort on the disposal of
surplus inert C&D materials e.g. good quality rock during detailed design
of the TM-CLKL project. Wherever practicable, C&D materials should be
segregated from other wastes to avoid contamination and to ensure acceptability
at public filling areas or reclamation sites.
(vii)
The extent of
cutting operation should be optimised where possible. Earth retaining structures and bored
pile walls should be proposed to minimise the extent
of cutting.
(viii)
Inert C&D
materials from slopes and road pavement will be reused for construction of the
raised platform for the toll plaza.
(ix)
Not used.
(x)
The surplus
surcharge should be transferred to a fill bank.
(xi)
Not used.
(xii)
Not used.
(xiii)
The site and
surroundings shall be kept tidy and litter free.
(xiv)
No waste shall
be burnt on site.
(xv)
Make provisions
in contract documents to allow and promote the use of recycled aggregates where
appropriate.
(xvi)
Prohibit the
Contractor to dispose of C&D materials at any sensitive locations e.g.
natural habitat, etc. The Contractor should propose the final disposal sites in
the EMP and WMP for approval before implementation.
(xvii)
Stockpiled
material shall be covered by tarpaulin and /or watered as appropriate to
prevent windblown dust and surface run off.
(xviii)
Excavated
material in trucks shall be covered by tarpaulins to reduce the potential for
spillage and dust generation.
(xix)
Wheel washing
facilities shall be used by all trucks leaving the site to prevent transfer of
mud onto public roads.
(xx)
Not used.
(xxi)
Standard
formwork or pre-fabrication should be used as far as practicable so as to minimise the C&D materials arising. The use of more
durable formwork or plastic facing for construction works should also be
considered. The use of wooden hoardings should be avoided and metal hoarding
should be used to facilitate recycling. Purchasing of construction materials
should be carefully planned in order to avoid over-ordering and wastage.
(xxii)
The Contractor
should recycle as many C&D materials (this is a waste section) as possible
on-site. The public fill and C&D waste should be segregated and stored in
separate containers or skips to facilitate the reuse or recycling of materials
and proper disposal. Where practicable, the concrete and masonry should be
crushed and used as fill materials.
Steel reinforcement bar should be collected for use by scrap steel
mills. Different areas of the sites
should be considered for segregation and storage activities.
(xxiii) All falsework will be steel instead
of wood.
(xxiv)
Chemical waste
producers should register with the EPD. Chemical waste should be handled in
accordance with the Code of Practice on the Packaging, Handling and Storage of
Chemical Wastes as follows:
-
Suitable for
the substance to be held, resistant to corrosion, maintained in good conditions
and securely closed;
-
Having a
capacity of <450L unless the specifications have been approved by the EPD;
and
-
Displaying a
label in English and Chinese according to the instructions prescribed in
Schedule 2 of the Regulations.
-
Clearly
labelled and used solely for the storage of chemical wastes;
-
Enclosed with
at least 3 sides;
-
Impermeable
floor and bund with capacity to accommodate 110% of the volume of the largest
container or 20% by volume of the chemical waste stored in the area, whichever
is greatest;
-
Adequate
ventilation;
-
Sufficiently
covered to prevent rainfall entering (water collected within the bund must be
tested and disposed of as chemical waste, if necessary); and
-
Incompatible
materials are adequately separated.
(xxv)
Waste oils,
chemicals or solvents shall not be disposed of to drain;
(xxvi)
Adequate
numbers of portable toilets should be provided for on-site workers. Portable
toilets should be maintained in reasonable states, which will not deter the
workers from utilizing them. Night soil should be regularly collected by
licensed collectors.
(xxvii)
General refuse
arising on-site should be stored in enclosed bins or compaction units
separately from C&D and chemical wastes. Sufficient dustbins shall be provided for
storage of waste as required under the Public Cleansing and Prevention of
Nuisances By-laws. In addition, general refuse shall be cleared daily and shall
be disposed of to the nearest licensed landfill or refuse transfer station.
Burning of refuse on construction sites is prohibited.
(xxviii)
All waste
containers shall be in a secure area on hardstanding;
(xxix)
Aluminum cans
are usually collected and recovered from the waste stream by individual
collectors if they are segregated and easily accessible. Separately labelled bins
for their deposition should be provided as far as practicable.
(xxx)
Office wastes
can be reduced by recycling of paper if such volume is sufficiently large to
warrant collection. Participation in a local collection scheme by the
Contractor should be advocated. Waste separation facilities for paper, aluminum
cans, plastic bottles, etc. should be provided on-site.
(xxxi)
Training shall
be provided to workers about the concepts of site cleanliness and appropriate
waste management procedure, including waste reduction, reuse and recycling.
8.1.3.1
The recommended
disposal sites for the different types of waste are detailed in Table 8.2 below:
Table 8.2 Recommended
Waste Disposal Sites
Type of Waste |
Disposal Site |
C&D materials |
Tuen Mun Areas 38 public fill bank |
C&D waste
(plastics, glass, wood, including cleared vegetation etc.) |
North Lantau
Refuse Transfer Station; or NWNT Refuse Transfer Station |
Chemical
waste (as defined under Schedule 1
of the Waste Disposal (Chemical Waste) Regulation) |
Chemical
Treatment Facility at Tsing Yi; or Other approved facility |
General refuse |
North Lantau
Refuse Transfer Station; or NWNT Refuse Transfer Station |
Note: (1) Subject to DASO
application
8.2.1.1
The results of
the contaminated land assessment did not reveal any contamination hotspots that
might be affected by the proposed TM-CLKL works and as such no mitigation
measures in the form of contaminated land remediation is required. Therefore, no EM&A activities for
the construction nor operational phases have been
recommended as no significant impacts are predicted.
8.3.1.1
EM&A
requirements are required for waste management during the construction phase
only and the effective management of waste arisings
during the construction phase will be monitored through the site audit
programme. The aims of the waste audit
are:
to ensure the waste arising from the works are handled,
stored, collected, transferred and disposed of in an environmentally acceptable
manner; and
to
encourage the reuse and recycling of material.
8.3.1.2
The Contractor
shall be required to pay attention to the environmental standard and guidelines
and carry out appropriate waste management and obtain the relevant licence/permits for waste disposal. The Environmental Team
(ET) shall ensure that the Contractor has obtained from the appropriate
authorities the necessary waste disposal permits or licences
including:
Chemical Waste Permits/licenses under the Waste Disposal
Ordinance (Cap 354);
Public Dumping Licence under
the Land (Miscellaneous Provisions) Ordinance (Cap 28);
Marine Dumping Permit under the Dumping at Sea Ordinance
(Cap 466); and
Effluent Discharge Licence
under the Water Pollution Control Ordinance.
8.3.1.3
The Contractor
shall refer to the relevant booklets issued by the DEP when applying for the licence/permit and the Environmental Team (ET) (see Section
1) shall refer to these booklets for auditing purposes.
8.3.1.4
During the site
inspections and the document review procedures as mentioned in Chapter 10 of
this Manual, the ET shall pay special attention to the issues relating to waste
management and check whether the Contractor has followed the relevant contract
specifications and the procedures specified under the laws of Hong Kong. In addition to the site inspections, the
ET shall review the documentation procedures prepared by the Waste Coordinator
once a week to ensure proper records are being maintained and procedures
undertaken in accordance with the Waste Management Plan.
8.3.1.5
The
Contractor¡¦s waste management practices should be audited with reference to the
checklist detailed in Table 8.3 below:
Table 8.3 Waste
Management Checklist
Activities |
Timing |
Monitoring Frequency |
If non-compliance, Action Required |
All necessary waste disposal permits or licences have been obtained |
Before the commencement
of demolition works |
Once |
Apply for the necessary permits/ licences
prior to disposal of the waste. The ET shall ensure that corrective action
has been taken. |
Only licensed waste haulier are used for waste
collection. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to use a licensed waste haulier. The Contractor shall temporarily suspend
waste collection of that particular waste until a licensed waste haulier is used.
Corrective action shall be undertaken within 48 hours. |
Records of quantities of wastes generated, recycled and
disposed are properly kept. For demolition
material / waste, the number of loads for each day shall be recorded
(quantity of waste can then be estimated based on average truck load. Should
landfill charging be implemented, the receipts of the charge could be used
for estimating the quantity). |
Throughout the works |
Weekly |
The Contractor shall estimate the missing data based on
previous records and the activities carried out. The ET shall audit the
results and forward to the ER and IEC for approval. |
Wastes are removed from site in a timely manner.
General refuse is collected on a daily basis. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to remove waste accordingly. |
Waste storage areas are properly cleaned and do not
cause windblown litter and dust nuisance. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to clean the storage area and/or cover the waste. |
Different types of waste are segregated in different
containers or skip to enhance recycling of material and proper disposal of waste. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to provide separate skips/containers. The Contractor shall
ensure the workers place the waste in the appropriate containers. |
Chemical wastes are stored, handled and disposed of in accordance
with the Code of Practice on the Packaging, Handling and Storage of Chemical
Wastes, published by the EPD. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to rectify the problems immediately. Warning shall be given to
the Contractor if corrective actions are not taken within 24 hrs and the Waste Control Group of the EPD shall be
identified. |
Demolition material/waste in dump trucks are properly covered before leaving the site. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall instruct
the Contractor to comply. The Contractor shall prevent trucks shall leaving
the site until the waste are properly covered. |
Wastes are disposal of at licensed sites. |
Throughout the works |
Weekly |
The ET shall inform the ER and IEC of the
noncompliance. The ER shall warn
the Contractor and instruct the Contractor to ensure the wastes are disposed of
at the licensed sites. Should it involve chemical waste, the Waste Control
Group of EPD shall be notified. |
Note: ET ¡V
Environmental Team, IEC ¡V Independent Environmental Checker, ER ¡V Engineer¡¦s Representative
9.1.1.1
The EIA has recommended
that EM&A for cultural heritage resources is undertaken during construction
phase of the project. Implementation of the mitigation measures recommended by
the EIA will be monitored through the site audit programme.
9.2.1.1
The identified
areas of archaeological potential highlighted by the EIA are limited to areas
where existing impacts would have damaged or destroyed any existing archaeological
material. As such, no further investigation is recommended for these
archaeological resources. However, as a precautionary measure it should be a
requirement during the construction works that if any antiquity or supposed antiquity
is discovered during the course of the excavation works undertaken by the
Contractor, the discovery shall be reported to the AMO immediately and all necessary
action taken to preserve it.
9.2.1.2
Not used.
9.2.1.3
Therefore, the
mitigation is restricted to the built heritage resources, Grave G1 at the
proposed toll plaza in Tuen Mun. Grave G1 is situated near the toll plaza, as shown
in Figure 9.1. The
design of the toll plaza has been arranged so as to preserve the grave in-situ,
with a minimum 1.0m permanent setback provided. With the 1.0m set back of the permanent
structure, a minimum of 0.7m clearance from the grave can be maintained during
construction. This will be achieved with the adoption of special precautionary
measures for working adjacent to the grave, including the deployment of
simple-to-erect formwork and falsework systems, the provision
of construction access and the bulky components of the falsework
support system being designed at locations away from the grave. The required construction
clearance and the precautionary measures shall be stipulated in the construction
specifications. The footpath connection from the adjacent Lung Mun Road to the
grave will, also, be maintained during construction and reprovided
after the works have been completed. No mitigation will be required during the operational
phase.
9.3.1.1
Measures
proposed by the EIA to create a 1.0m permanent set back in order to mitigate
any impacts on Grave G1 which is within the works boundary of the toll plaza at
Tuen Mun, will be incorporated into the detailed design of the project. Designs and specifications will be
prepared during the detailed design stage by suitably qualified staff on the
design team. The designs will be checked by a design auditor(s) to ensure that
the measures are fully incorporated and that potential conflicts with the
engineering are resolved prior to construction. In the event of a non-conformity, the Event/Action plan detailed in Table 9.1 below shall be followed by the relevant parties.
Table 9.1 Event
/ Action Plan for Design Phase
Action Level |
Design Auditor |
Project Engineer (PE) |
Project Designer (PD) |
Non- Conformity (with Design Standards and Specification) |
Identify Source Inform PE and PD Discuss remedial actions with PE, and PD Verify remedial actions when complete |
Notify PD Discuss remedial actions with PD Ensure remedial designs are fully incorporated |
Amend designs Discuss remedial actions with PE |
9.4.1.1
The
implementation of the above mitigation measures will need to be audited as part
of the EM&A programme during the toll plaza works. Prior to construction, a baseline survey
of the grave should be undertaken to establish the existing condition.
9.5.1.1
All measures
undertaken by the Contractor during the construction phase in the vicinity of
the grave shall be audited by the Environmental Team (ET), on a regular basis
to ensure compliance with the intended aims of the recommended mitigation
measures. Site inspections should be undertaken at least once per week throughout
the construction period adjacent to these properties. The main aim of the
survey is prevention of any possible damage to the grave and to ensure that the
proposed mitigation measures are implemented. The broad scope of the audit will
involve supervision of the following:
non-contact
effects of the engineering works, such as vibration from pneumatic drills which
could cause damage, such as foundation or wall cracks and loosening of tiles or
fixtures; and
contact between the historic structures and
equipment and materials associated with the engineering works.
9.5.1.2
Specifically,
the monitoring programme will entail the following tasks:
the extent of
the agreed works areas should be regularly checked during the construction
phase to ensure the buffer is being maintained; and
ensure no stockpiling or equipment storage is
affecting the structures.
9.5.1.3
In the event of
non-compliance the responsibilities of the relevant parties is detailed in the
Event /Action plan provided on Table 9.2.
Table 9.2 Event
/ Action Plan for Construction Phase
Action Level |
ET |
IC (E) |
ER |
Contractor |
Non- conformity
on one occasion |
1. Identify Source 2. Inform the IEC and the ER 3. Discuss remedial actions with the IEC, the ER and the Contractor 4.
Monitor
remedial actions until rectification has been completed |
1.
Check report 2.
Check the
Contractor's working method 3.
Discuss with
the ET and the Contractor on possible remedial measures 4.
Advise the ER
on effectiveness of proposed remedial measures. 5.
Check
implementation of remedial measures. |
1.
Notify Contractor 2.
Ensure remedial
measures are properly implemented |
1. Amend working methods 2.
Rectify damage
and undertake any necessary replacement |
Repeated Non-
conformity |
1. Identify Source 2. Inform the IC(E) and the ER 3. Increase monitoring frequency 4. Discuss remedial actions with the IC(E), the ER and the
Contractor 5. Monitor remedial actions until 6. rectification has been completed 7.
If exceedance
stops, cease additional monitoring |
1.
Check
monitoring report 2.
Check the
Contractor's working method 3.
Discuss with
the ES and the Contractor on possible remedial measures 4.
Advise the ER
on effectiveness of proposed remedial measures 5.
Supervise
implementation of remedial measures. |
1.
Notify the Contractor 2.
Ensure remedial
measures are properly implemented |
1. Amend working methods 2.
Rectify damage
and undertake any necessary replacement |
Note:
ET ¡V Environmental Specialist, IEC ¡V Independent
Environmental Checker, ER ¡V Engineer¡¦s Representative
10.1.1.1
The landfill
gas hazard assessment undertaken in the EIA identified the hazards that are
likely to be generated from the Pillar Point Valley (PPV) Landfill, during the
construction and operation phases of this Project and evaluate the associated risk.
The EIA Report recommended that some precautionary measures are required to
protect the proposed Tuen Mun ¡V Chek Lap Kok Link (TM-CLKL)
toll plaza from the landfill gas risk due to the PPV Landfill. Use of ¡§semi
active¡¨ or ¡§enhanced passive¡¨ gas control protection system referenced from the
EPD¡¦s Landfill Gas Hazard Assessment Guidance Note were recommended. Regular monitoring
during construction and operation phases was also recommended.
10.2.1.1
During
construction, a Safety Officer should be appointed to carry out the monitoring
works. The monitoring frequency and areas to be monitored should be set down
prior to commencement of ground-works either by the Safety Officer or an
approved and appropriated qualified person. The routine monitoring should be carried
out in all excavations, manholes, chambers, relocation of monitoring wells and
any other confined spaces that may have been created. All measurements in excavations
should be made with the extended monitoring tube located not more than 10 mm
from the exposed ground surface. Monitoring should be performed properly to
make sure that the area is free of landfill gas before any man enters in the
area.
10.2.1.2
For excavations
deeper than 1m, measurements should be carried out:
at the ground surface before excavation commences;
immediately before any worker enters the excavation;
at the beginning of each working day for the entire
period the excavation remains open; and
periodically through
the working day whilst workers are in the excavation.
10.2.1.3
For excavations
between 300mm and 1m deep, measurements should be carried out:
directly after the excavation has been completed; and
periodically whilst the excavation remains open
10.2.1.4
For excavations
less than 300mm deep, monitoring may be omitted, at the discretion of the
Safety Officer or other appropriately qualified person.
10.2.1.5
Depending on
the results of the measurements, actions required will vary and should be set
down by the Safety Officer or other appropriately qualified person. As a
minimum these should encompass those actions specified as follow:
Table 10.1 Actions
in the Event of Landfill Gas being Detected in Excavation
/ Confined Area
Parameter |
Measurement |
Action |
Oxygen |
< 19% |
- Ventilate to restore oxygen to > 19% |
< 18% |
- Stop work - Evacuate
personnel / prohibit entry - Increase ventilation to restore to > 19% |
|
Methane |
> 10% LEL
(> 0.5% v/v) |
- Prohibit
hot work - Ventilate
to restore methane to < 10% LEL |
> 20% LEL (>1%
v/v) |
- Stop work - Evacuate
personnel / prohibit entry - Increase ventilation to restore to < 10% |
|
Carbon Dioxide |
> 0.5% |
- Ventilate to restore oxygen to < 0.5% |
> 1.5% |
- Stop work - Evacuate
personnel / prohibit entry - Increase ventilation to restore to < 0.5% |
10.2.1.6
During
operation, regular monitoring of landfill gas should be done at the tunnel, subway,
and any other underground structures within the landfill consultation zone.
Monitoring is required to verify the effectiveness and to ensure the continued
performance of the implemented protection measures.
10.2.1.7
Inspection and
LFG monitoring should be carried out at buildings and enclosures (e.g. toll
control building, toll booths, tunnel, subway, service manholes, etc.) prior to
the operation to ensure the design measures and functioning properly. The monitoring
should be continued through the operation of the Project. In particular for the
first year of operation, monthly monitoring is recommended, and quarterly (or
at a frequency agreed by EPD) for second year on. Should the monitoring reveal
the presence of landfill gas within the tunnel, subway, or other confined area,
the seal of the joints shall be inspected and consideration shall be given to seal
the cracks. Action level can refer to Table 10.1,
and should abnormality is observed, it should be reported to EPD and the PPV
Landfill operator.
10.2.1.8
In addition, if
any construction is required for the maintenance work during operation stage,
the responsible party should follow the protective measures and monitoring
works as recommended in Clause 10.2.1.1~10.2.1.5 of this
report.
10.2.1.9
The monitoring
programme and detailed actions should be included in the detailed assessment
(to be carried out in the designed design stage) and submitted to EPD for
approval.
11.1.1.1
Site
inspections provide a direct means to assess and ensure the Contractor¡¦s environmental
protection and pollution control measures are in compliance with the contract
specifications. Site inspections shall be undertaken routinely by the Environmental
Team (ET) (see Section 1) to inspect the construction activities in order to
ensure that appropriate environmental protection and pollution control mitigation
measures are properly implemented in accordance with the EIA.
11.1.1.2
The ET is
responsible for the formulation of an environmental site inspection, deficiency
and remedial action reporting system and for carrying out the site inspection
works. In consultation with the Independent Environmental Checker (IEC), the ET
shall prepare a procedure for the site inspection, deficiency and remedial
action reporting requirements and submit this to the Contractor for agreement
and to the Engineer¡¦s Representative (ER) for approval within 21 days of
commencement to the construction contract.
11.1.1.3
Regular site
inspections shall be carried out at least once per week. The areas of inspection
shall not be limited to the site area and should also include the environmental
conditions outside the site which are likely to be affected, directly or indirectly,
by the site activities.
11.1.1.4
The ET shall
make reference to the following information while conducting the inspections:
(i)
the EIA
recommendations on environmental protection and pollution control mitigation
measures as stated in the EIA report;
(ii)
work progress
and programme;
(iii)
individual
works methodology proposals;
(iv)
the contract
specifications on environmental protection;
(v)
the relevant
environmental protection and pollution control laws;
(vi)
previous site
inspection results; and
(vii)
environmental monitoring data.
11.1.1.5
The Contractor
shall update the ET with all relevant information on the construction works
prior to carrying out the site inspections. The site inspection results and
associated recommendations on improvements to the environmental protection and
pollution control works shall be submitted, in a site inspection proforma (see Appendix B), by
the ET to the IEC, the ER and the Contractor within 24 hours for reference and
for taking immediate action. The Contractor shall follow the procedures and
time-frame, as stipulated in the environmental site inspection, deficiency and
remedial action reporting system to report on any remedial measures subsequent
to site inspections.
11.1.1.6
Ad hoc site
inspections shall also be carried out by the ET and IEC if significant environmental
problems are identified. Inspections may also be required subsequent to receipt
of an environmental complaint (an example of the complaint log is provided in Appendix
B) or as part of the investigation work as specified in the Action Plan for
environmental monitoring and audit.
11.2.1.1
There are
contractual environmental protection and pollution control requirements as well
as environmental protection and pollution control laws in Hong Kong with which
the construction activities shall comply.
11.2.1.2
In order that
the works are in compliance with the contractual requirements, all the works
method statements submitted by the Contractor to the ER for approval shall be
sent to the ET for vetting to see whether sufficient environmental protection and
pollution control measures have been included.
11.2.1.3
The ET shall
also review the progress and programme of the works to check that relevant
environmental laws have not been violated and that any foreseeable potential
for violating the laws can be prevented.
11.2.1.4
The Contractor
shall regularly copy relevant documents to the ET so that the checking work can
be carried out. The documents shall include at minimum the updated Work
Progress Reports, the updated Works Programme, the application letters for
different licence/permits under the environmental
protection laws and all valid licence/permit. The
site diaries shall also be available for the ET¡¦s inspection upon request.
11.2.1.5
After reviewing
the document, the ET shall advise the IEC, the ER and the Contractor of any
non-compliance with the contractual and legislative requirements on
environmental protection and pollution control for them to take follow-up
actions. The ET shall also advise the IEC, the Contractor and the ER on the
current status on licence/permit applications and any
environmental protection and pollution control preparation works that may not
be suitable for the works programme or may result in potential violation of
environmental protection and pollution control requirements.
11.2.1.6
Upon receipt of
the advice, the Contractor shall undertake immediate action to remedy the
situation. The ET, IEC and the ER shall follow up to ensure that appropriate
action has been taken by the Contractor in order that the environmental
protection and pollution control requirements are fulfilled.
11.3.1.1
Complaints
shall be referred to the ET for carrying out complaint investigation procedures.
The ET shall prepare a flow chart of the complaint response procedures that
addresses, complaint receiving channels, responsible parties/contacts for
information, the investigation process, procedures for the implementation of
mitigation/remedial action, guidelines for communication and public relation
with the complainant etc. The flow chart should be agreed by all parties and
issued to the Contractor, ER and IEC for reference.
11.3.1.2
The ET shall
undertake the following procedures upon receipt of a complaint:
(i)
log complaint
and date of receipt into the complaint database and inform the IEC immediately;
(ii)
investigate the
complaint and discuss with the Contractor to determine its validity and to
assess whether the source of the problem is due to works activities;
(iii)
if a complaint
is considered valid by the ER or EPD and due to the works, the ET shall identify
mitigation measures in consultation with the IEC;
(iv)
if mitigation
measures are required, the ET shall advise the Contractor accordingly;
(v)
review the
Contractor's response on the identified mitigation measures and the updated
situation;
(vi)
if the
complaint is transferred from EPD, an interim report shall be submitted to EPD
on the status of the complaint investigation and follow-up action within the
time frame assigned by EPD;
(vii)
undertake
additional monitoring and audit to verify the situation if necessary and ensure
that any valid reason for complaint does not recur;
(viii)
report the investigation results and the
subsequent actions on the source of the complaint for responding to
complainant. If the source of complaint is EPD, the results should be reported
within the time frame assigned by EPD; and
(ix)
record the complaint, investigation, the
subsequent actions and the results in the monthly EM&A reports.
11.3.1.3
During the
complaint investigation work, the Contractor and ER shall cooperate with the ET
in providing all the necessary information and assistance for completion of the
investigation. If mitigation measures are identified in the investigation by
the ET, in consultation with the IEC, the Contractor shall promptly carry out
the mitigation measures. The ET and ER shall approve the proposed mitigation
measures and check that the measures have been carried out by the Contractor.
11.4.1.1
At times during
the construction phase the Contractor may submit method statements for various
aspects of construction. This state of affairs would only apply to those
construction methods that the EIA has not imposed conditions while for
construction methods that have been assessed in the EIA, the Contractor is
bound to follow the requirements and recommendations in the EIA study. The Contractor¡¦s
options for alternative construction methods may introduce adverse environmental
impacts into the project. It is the responsibility of the ET, in accordance
with established standards, guidelines and EIA study recommendations and
requirements, to review and determine the adequacy of the environmental
protection and pollution control measures in the Contractor¡¦s proposal in order
to ensure no unacceptable impacts would result. To achieve this end, the ET
shall provide a copy of the Proactive Environmental Protection Proforma as shown in Appendix B to the IEC for
approval. The IEC should audit the review of the construction method and
endorse the proposal on the basis of no adverse environmental impacts.
12.1.1.1
The following
reporting requirements are based upon a paper documented approach. However, the
same information can be provided in an electronic medium upon agreeing the
format with the Engineer¡¦s Representative (ER). The reports are required to be
prepared by the Environmental Team (ET).
12.2.1.1
All
documentation is required to be filed in a traceable and systematically manner.
Site documentation, including monitoring field records, laboratory analysis records,
meeting minutes, correspondences etc.(some examples
are provided in Appendix B) shall
be cross-referenced by the ET and be ready for inspection upon request. All
EM&A results and findings shall be documented in the respective
construction and operational phase EM&A reports prepared by the ET and endorsed
by the Independent Environmental Checker (IEC) prior to dissemination to the
Contractor, the ER and EPD. All reports including details of water quality
monitoring, ecology, landscape and visual and archaeological EM&A shall
also be issued to the the AFCD and the AMO as
appropriate.
12.2.1.2
All
documentation shall be in paper form and/or electronic (in an agreed format) upon
request. All documents and data shall be kept for at least one year after the completion
of the operational phase EM&A works. All submissions (reports, data and
correspondences etc.) shall be liable to free use for the purposes of communicating
environmental data and the owner of information shall claim no copyright. Any
request to treat all or part of a submission in confidence will be respected,
but if no such request is made it will be assumed that the submission is not
intended to be confidential.
12.3.1.1
The Design
Audit Report shall provide the means for the Consultant undertaking the
detailed design of the project to certify that environmental design elements and
specifications have been completed in accordance with the EIA requirements. The
Consultant shall include in the report a signed off proforma
(see Appendix B) to
confirm that there are no outstanding environmental measures, identified as requiring
design phase audit, that require further action. The Design Audit Report and
specifications shall be prepared by the Consultants and issued to EPD, the AFCD
and the PlanD, as appropriate, prior to the
commencement of the tendering period.
12.4.1.1
In respect of
the construction phase EM&A works, the ET shall prepare and submit a
Baseline Environmental Monitoring Report within 10 working days of completion
of baseline monitoring. Copies of the Baseline Environmental Monitoring Report
shall be submitted to the following: the Contractor, the IEC, the ER, EPD, the
AFCD and the AMO as appropriate. The ET shall liaise with the relevant parties
on the exact number of copies required.
12.4.1.2
The baseline
monitoring reports for both the construction and operational phases shall
include at least the following:
(i)
Up to half a
page executive summary.
(ii)
Background
information.
(iii)
Drawings
showing locations of the baseline monitoring stations.
(iv)
An updated
construction programme with milestones of environmental protection/mitigation
activities annotated.
(v)
Monitoring
results (in both hard and diskette copies) together with the following
information:
-
monitoring
methodology;
-
name of
laboratory and equipment used and calibration details;
-
parameters
monitored;
-
monitoring
locations (and depth);
-
monitoring
date, time, frequency and duration; and
-
QA/QC results
and detection limits.
(vi)
Details on
influencing factors, including:
-
major
activities, if any, being carried out on the site during the period;
-
weather
conditions during the period; and
-
other factors which might affect the results.
(vii)
Determination
of the Action and Limit Levels for each monitoring parameter and statistical
analysis of the baseline data.
(viii)
Revisions for
inclusion in the EM&A Manual.
(ix)
Comments and
conclusions.
12.5.1.1
The results and
findings of all construction phase EM&A work required in this Manual shall
be recorded in the EM&A Reports prepared by the ET on a monthly basis and
endorsed by the IEC. The EM&A Reports shall be prepared and submitted
within 10 working days of the end of each reporting month, with the first
report due one month and 10 days after construction commences.
12.5.1.2
A maximum of 4
copies of each EM&A Report shall be submitted to each of the following
parties: the Contractor, the IEC, the ER, EPD, the AFCD, the AMO and the PlanD, as appropriate. Before submission of the first
EM&A Report, the ET shall liaise with the parties on the exact number of
copies and format of the reports in both hard copy and electronic medium.
12.5.1.3
The operational
phase EM&A works will be undertaken on a two monthly basis for a period of
one year after the commission of the project. The ET shall prepare operational
phase EM&A Reports on a bi-monthly basis to be submitted within 10 working
days of the end of the reporting period. The reports shall be submitted to the
Contractor, the IEC, the ER, EPD and the AFCD as appropriate.
12.5.1.4
The ET shall
review the monitoring programme every 6 months or on an as needed basis in
order to cater for any changes in the surrounding environment and nature of
works in progress and shall document all observations in the monthly/bimonthly reports.
12.6.1.1
The first
EM&A report for both the construction and operational phases shall include
at least the following:
(i)
1-2 pages
executive summary, comprising:
-
breaches of AL
levels;
-
complaint Log;
-
notifications
of any summons and successful prosecutions;
-
reporting
Changes; and
-
future key issues.
(ii)
Basic Project information including a synopsis of the Project organization
(including key personnel, contact names and telephone numbers), a drawing of
the Project area showing the environmentally sensitive receivers and the
locations of monitoring and control stations, programme, management structure
and the work undertaken during the month.
(iii)
Environmental
Status, comprising:
-
works
undertaken during the month with illustrations (such as location of works,
daily dredging/filling rates, percentage fines in the fill material used); and
-
drawing showing the project area, any environmental
sensitive receivers and the locations of the monitoring and control stations.
(iv)
A brief summary
of EM&A requirements including:
-
all monitoring
parameters;
-
environmental
quality performance limits (Action and Limit levels);
-
Event-Action
Plans;
-
environmental
mitigation measures, as recommended in the Project EIA study final report; and
-
environmental requirements in contract documents.
(v)
Advice on the
implementation status of environmental protection and pollution
control/mitigation measures as recommended in the Project EIA study report and
summarized in the updated implementation schedule.
(vi)
Monitoring
results (in both hard and diskette copies) together with the following
information:
-
monitoring
methodology;
-
name of
laboratory and equipment used and calibration details;
-
parameters
monitored;
-
monitoring
locations (and depth);
-
monitoring
date, time, frequency, and duration; and
-
QA/QC results
and detection limits.
(vii) Graphical plots of trends of monitored parameters at the
representative monitoring stations annotated against the following:
-
major
activities being carried out on site during the period;
-
weather
conditions during the period; and
-
any other
factors which might affect the monitoring results;
-
QA/QC results
and detection limits.
(viii) Advice on the solid and liquid waste management status.
(ix)
A summary of
noncompliance (exceedances) of the environmental quality performance limits
(Action and Limit levels).
(x)
A review of the
reasons for and the implications of noncompliance including a review of
pollution sources and working procedures.
(xi)
A description
of the actions taken in the event of noncompliance and deficiency reporting and
any follow-up procedures related to earlier noncompliance.
(xii) A summary record of all complaints received (written or
verbal) for each media, including locations and nature of complaints, liaison
and consultation undertaken, actions and follow-up procedures taken and summary
of complaints.
(xiii) A summary of notifications of summons, successful
prosecutions for breaches of environmental protection/pollution control
legislation and actions to rectify such breaches.
(xiv) An account of the future key issues as assessed from the
works programme and work method statements.
(xv)
Advice on the
solid and liquid waste management status.
(xvi) Comments, recommendations and conclusions for the
monitoring period.
(xvii) Submission of implementation status proforma,
proactive environmental protection proforma,
regulatory compliance proforma, site inspection proforma, data recovery schedule and complaint log
summarizing the EM&A of the period.
12.7.1.1
The subsequent
EM&A reports prepared by the ES for both the construction and operational
phases shall include the following:
(i)
Title page.
(ii)
Executive
summary (1-2 pages), including:
-
breaches of all
Action and Limit levels;
-
complaint log;
-
notifications
of any summons and successful prosecutions;
-
reporting
changes; and
-
future key issues.
(iii)
Contents page.
(iv)
Environmental
status, comprising:
-
drawing showing
the Project area, any environmental sensitive receivers and the locations of
the monitoring and control stations;
-
summary of
non-compliance with the environmental quality performance limits; and
-
summary of complaints.
(v)
Environmental
issues and actions, comprising:
-
review issues
carried forward and any follow-up procedures related to earlier non-compliance
(complaints and deficiencies);
-
description of
the actions taken in the event of noncompliance and deficiency reporting;
-
recommendations
(should be specific and target the appropriate party for action); and
-
implementation status
of the mitigatory measures and the corresponding
effectiveness of the measures.
(vi)
Future key
issues.
(vii) Appendices, including:
-
action and
limit levels;
-
graphical plots
of trends of monitored parameters at key stations over the past four reporting
periods for representative monitoring stations annotated against the following:
major activities being carried out on site during the period; weather
conditions during the period; and any other factors which might affect the
monitoring results;
-
monitoring
schedule for the present and next reporting period;
-
cumulative
complaints statistics; and
-
details of complaints, outstanding issues and
deficiencies.
12.8.1.1
The ET shall
submit Quarterly EM&A Summary Reports for the
construction phase EM&A works only. These reports should be around 5 pages
(including about three pages of text and tables and two pages of figures) and
shall contain at minimum the following information:
(i)
Up to half a
page executive summary.
(ii)
Basic Project
information including a synopsis of the Project organization, programme,
contacts of key management, and a synopsis of work undertaken during the
quarter.
(iii)
A brief summary
of EM&A requirements including:
-
monitoring
parameters;
-
environmental
quality performance limits (Action and Limit levels); and
-
environmental mitigation measures, as recommended in
the Project EIA study final report.
(iv)
Advice on the
implementation status of environmental protection and pollution
control/mitigation measures as recommended in the Project EIA study report and
summarized in the updated implementation schedule.
(v)
Drawings
showing the Project area, any environmental sensitive receivers and the
locations of the monitoring and control stations.
(vi)
Graphical plots
of the trends of monitored parameters over the past 4 months (the last month of
the previous quarter and the present quarter) for representative monitoring
stations annotated against:
-
the major
activities being carried out on site during the period;
-
weather
conditions during the period; and
-
any other factors which might affect the monitoring results.
(vii) Advice on the solid and liquid waste management status.
(viii) A summary of noncompliance (exceedances) of the
environmental quality performance limits (Action and Limit levels).
(ix)
A brief review
of the reasons for and the implications of non-compliance including review of
pollution sources and working procedures.
(x)
Not used.
(xi)
A summary
description of the actions taken in the event of noncompliance and any
follow-up procedures related to earlier noncompliance.
(xii) A summary record of all complaints received (written or
verbal) for each media, liaison and consultation undertaken, actions and
follow-up procedures taken.
(xiii) Comments (e.g. effectiveness and efficiency of the
mitigation measures), recommendations (e.g. any improvement in the EM&A
programme) and conclusions for the quarter.
(xiv) Proponents' contacts and any hotline telephone number for
the public to make enquiries.
12.9.1.1
An annual
EM&A report should be prepared by the ET at the end of each construction
year during the course of the project. A final EM&A report should be
prepared by the ET at the end of both the construction and operational phases. The annual/final EM&A reports should
contain at least the following information:
(i)
Executive
Summary (1-2 pages).
(ii)
Drawings
showing the project area any environmental sensitive receivers and the
locations of the monitoring and control stations.
(iii)
Basic project
information including a synopsis of the project organization, contacts for key
management staff and a synopsis of work undertaken during the course of the
project or past twelve months.
(iv)
A brief summary
of EM&A requirements including:
-
environmental
mitigation measures as recommended in the project EIA study final report;
-
environmental
impact hypotheses tested;
-
environmental
quality performance limits (Action and Limit Levels);
-
all monitoring
parameters; and
-
Event-Action
Plans.
(v)
A summary of
the implementation status of environmental protection and pollution
control/mitigation measures as recommended in the project EIA study report and
summarized in the updated implementation schedule.
(vi)
Graphical plots
and the statistical analysis of the trends of monitored parameters over the
course of the projects including the post-project monitoring (or the past
twelve months for annual reports) for all monitoring stations annotated against
the following:
-
the major
activities being carried out on site during the period;
-
weather
conditions during the period;
-
any other
factors which might affect the monitoring results; and
-
the return of ambient environmental conditions in comparison
with baseline data.
(vii) A summary of noncompliance (exceedances) of the
environmental quality performance limits (Action and Limit levels).
(viii) A review of the reasons for and the implications of
non-compliance including review of pollution sources and working procedures as appropriate.
(ix)
A description
of the actions taken in the event of non-compliance.
(x)
A summary
record of all complaints received (written or verbal) for each media, liaison
and consultation undertaken, actions and follow-up procedures taken.
(xi)
A summary
record of notifications of summonses and successful prosecutions for breaches
of the current environmental protection/pollution control legislations,
locations and nature of the breaches investigation, follow-up actions taken and
results.
(xii) A comparison of the EM&A data with the EIA
predictions with annotations and explanations for any discrepancies, including
a review of the validity of EIA predictions and identification of shortcomings
in the EIA recommendations.
(xiii) A review of the monitoring methodology adopted and with
the benefit of hindsight, comment on its effectiveness, including cost
effectiveness.
(xiv) A review of the success of the EM&A
programme, including a review of the effectiveness and efficiency
of the mitigation measures, and recommendations for any improvements in the
EM&A programme.
(xv)
A clear cut
statement on the environmental acceptability of the project with reference to
specific impact hypotheses and a conclusion to state the return to ambient
and/or the predicted scenario as the EIA findings.
12.10.1.1
The site
documents such as the monitoring field records, laboratory analysis records,
site inspection forms, etc. are not required to be included in the EM&A Reports
for submission. However, the documents shall be kept by the ET and be ready for
inspection upon request. All relevant information shall be clearly and systematically
recorded in the documents. The monitoring data shall also be recorded in
magnetic media, and the software copy shall be available upon request. All the documents and data shall be kept
for at least one year after the completion of the operational phase EM&A
works.
12.11.1.1
With reference
to Event/Action Plans, when the environmental quality limits are exceeded, the
ET shall immediately notify the Contractor, the ER, EPD and the AFCD as
appropriate. The notification shall be followed up with advice to each party on
the results of the investigation, proposed action and success of the action taken,
with any necessary follow-up proposals. A sample template for the interim notifications
is shown in Figure 12.1.