CONTENTS
1.3 Purpose of this EM&A Manual
1.4 Contents of this EM&A Manual
3.4 Environmental Monitoring and Audit
Requirements
4.3 Construction Noise Monitoring
4.5 Environmental Monitoring and Audit
Requirements
5.6 Laboratory Measurement / Analysis
5.8 Environmental Monitoring and Audit
Requirements
6.3 Environmental Monitoring and Audit Requirements
7.2 Mitigation Measures and Precautionary Measures
7.3 Environmental Monitoring and Audit
Requirements
8.3 Environmental Monitoring and Audit
Requirements
9.3 Environmental Monitoring & Audit
Requirements
10 LANDSCAPE AND VISUAL IMPACT
10.3 Environmental Monitoring and Audit
Requirements
12.2 Baseline Monitoring Report
12.3 Monthly Environmental Monitoring and Audit (EM&A)
Report
12.6 Interim Notifications of Environmental
Quality Limit Exceedances
TABLES
Table 3.1 Proposed Dust Monitoring
Stations for ATCL during Construction Phase
Table 3.3 Action and Limit (A/L)
Levels for Air Quality
Table 3.4 Event and Action Plan for
Air Quality
Table 4.1 Proposed Construction
Noise Monitoring Stations
Table 4.2 Action and Limit (A/L) Levels for Construction Noise
Table 4.3 Event and Action Plan for Construction Noise
Table 5.3 Action
and Limit Levels for Marine Water Quality
Table 5.4 Event and Action Plan for
Marine Water Quality
Table 10.1 Event and Action Plan
for Landscape and Visual
FIGURES
Figure 1.1 Location
of the Project
Figure 3.1 Locations of Dust
Monitoring Stations
Figure 4.1 Locations
of Noise Monitoring Stations
Figure 5.1 Locations
of Water Quality Monitoring Stations
APPENDICES
Appendix A Implementation
Schedule for Environmental Mitigation Measures
Appendix B Site Inspection Proforma
Appendix D Sample of Monitoring
Data Sheet
Appendix E Sample
Template for the Interim Notification
Strategic Context: Airport City
1.1.1
Airport Authority Hong Kong (AAHK) first put forward its vision to
transform Hong Kong International Airport (HKIA) into an Airport City in the “From City Airport to Airport City”
report published in 2019. The
Airport City vision envisages growing HKIA’s position as the preeminent
international aviation hub in Asia Pacific, while transforming HKIA into a new
landmark and one of the key economic growth engines for Hong Kong. To realise the Airport City vision, AAHK
has adopted a strategy to fully capitalise on the unique geographical advantage
of HKIA and capture opportunities arising from the new infrastructures
connected to the airport, such as the Hong Kong-Zhuhai-Macao Bridge (HZMB).
1.1.2
The infrastructural support to the airport’s capacity and functional
enhancements includes, among others, a series of AAHK’s recommendations for land
uses on the Hong Kong Port (HKP) (formerly known as Hong Kong Boundary Crossing
Facilities) Island of HZMB. The key
project items include the building of automated car parks for transit air
passengers and visitors travelling via HZMB, and the Airportcity
Link, a vehicular and pedestrian bridge, on which the AAHK operates an
autonomous transportation system to connect HKP Island and SKYCITY, and plans
to extend such system to Tung Chung Town Centre. In addition, land parcels on the HKP
Island have been reserved for the development of air cargo logistics. As announced in the Chief Executive’s
2020 Policy Address, the HKSAR Government has accepted these proposals. It is also noted in the 2020 Policy
Address that optimising the use of the land adjacent to the airport will not
only provide more job opportunities and a better living environment for the
expanding Tung Chung community, but also inject new development elements and
economic impetus into the whole North Lantau.
1.1.3
A Project Profile (No. PP-623/2021) was submitted to the Environmental
Protection Department (EPD) for application of an EIA Study Brief under Section
5(1)(a) of the Environmental Impact Assessment Ordinance (EIAO) and an EIA
Study Brief (No. ESB-342/2021) for the Project was issued on 26 July 2021 under
Section 5(7)(a) of the EIAO.
1.1.4
On 21 September 2021, the Airport Authority Hong Kong appointed
Meinhardt (Hong Kong) Ltd, to provide consultancy services for the Airport Tung
Chung Link Project under Contract C21C04.
Site Location of the Project and
History
1.2.1
The Project involves the construction and operation of (i) a proposed
Airport Tung Chung Link (ATCL) to connect HKP Island, Airport Island and Tung
Chung Town Centre via a dedicated road link; and (ii) marine facilities in the
waters between Airport Island and HKP Island. The ATCL will be extended from the
planned Airportcity Link (ACL) to its south &
east and run along the eastern coast of the Airport Island for connection with
the East Coast Support Area (ECSA) in the Airport Island and Tung Chung Town
Centre. Part of the ATCL is located
in the marine area (marine viaduct section) and part in the land area (at-grade
and land viaduct section). AAHK's
zero emission vehicles (e.g. electric vehicles), and ultimately an autonomous
transportation system (supported by zero emission autonomous vehicles), will be
operated on the proposed ATCL. The
marine facilities include the SKYCITY Pier and berthing facilities are
developed with a view to promote tourism and form part of the leisure offerings
in SKYCITY. Location of the Project
is shown in Figure 1.1.
1.2.2
Subsequent to the issue of the EIA Study Brief (No.
ESB-342/2021), two design developments have been changed as compared to the
Project Profile. These include:
1.
Maintenance dredging for
the marine facilities is necessary for its future operation; and
2.
Kwo Lo Wan Road (KLW Road) upgrading works will be
carried out separately, i.e. independent from the ATCL, so as to provide an
access to the ECSA before ECSA construction.
1.2.3
In accordance
with Clause 6.2 of the EIA Study Brief, it was checked if there was any key
change in the scope of the Project mentioned in Section 1.2 of the EIA Study
Brief and in Project Profile (No. PP-623/2021). It was demonstrated that inclusion of
maintenance dredging for marine facilities and removal of KLW Road would not
fundamentally alter the key scope of the EIA Study Brief. The EIA
Study Brief is still valid for the preparation of the EIA Report.
1.2.4
The Project consists of the following designated projects under the
following items of Part I, Schedule 2 of the EIAO:
·
Item A.6(c) – A transport depot
located less than 200 m from the nearest boundary of an existing or planned
educational institution;
·
Item A.8 – A road or railway bridge
more than 100 m in length between abutments;
·
Item C.3(a) – Reclamation works
resulting in 5% decrease in cross sectional area calculated on the basis of
0.0mPD in a sea channel;
·
Item C.12(b) – A dredging operation
exceeding 500,000 m3 or a dredging operation which is less than 100
m from a seawater intake point; and
·
Item O.2 – A marina designed to
provide moorings or dry storage for not less than 30 vessels used primarily for
pleasure or recreation.
Implementation
Programme
1.2.5
The construction works of the Project will be tentatively commenced in
Q4 2025 and be completed in 2027/2028.
A summary of the key construction works period is listed below.
·
ATCL (including ATCL alignment,
stations and other associated works)
Tentative construction period: Q4 2025
to Q1 2028
·
Marine Facilities (including SKYCITY
Pier and berthing facilities)
Tentative
construction period: Q2 2026 to Q4 2027
1.3.1 The purpose of this Environmental Monitoring and Audit (EM&A) Manual (hereinafter refer to as the “Manual”) is to guide the setup of an EM&A programme to ensure compliance with the EIA recommendations, to assess the effectiveness of the recommended mitigation measures and to identify any further need for additional mitigation measures or remedial action. This Manual outlines the proposed monitoring and audit programme for the Project.
1.3.2
The Manual provides
specific information, guidance
and instruction to personnel in charged
with environmental responsibilities and undertaking environmental monitoring and auditing works for the Project. It
also provides systematic procedures for monitoring, auditing and minimising
environmental impacts associated with the Project.
1.4.1
This EM&A Manual has been prepared
in accordance with the requirements stipulated in Clause 3.5 of the EIA Study Brief (No. ESB-342/2021) and Annex 21
of the Technical Memorandum on Environmental Impact Assessment Process
(EIAO-TM).
1.4.2
The EM&A Manual contain
the following information:
•
Project organisation for the
EM&A works;
•
Responsibilities of the Contractor, the Project
Manager (PM) or Project Manager’s Representative (PMR) of AAHK, Environmental
Team (ET) and Independent Environmental Checker (IEC) under the context of
EM&A;
•
The basis for, and description of the broad approach
underlying the EM&A programme;
•
Details of the methodologies to be adopted, including
all field laboratories and analytical procedures, and details on quality
assurance and quality control programme;
•
Definition of Action and Limit levels;
•
Establishment of Event and Action Plans;
•
Requirements for reviewing pollution sources and
working procedures required in the event of non-compliance with the
environmental criteria and complaints; and
•
Requirements for presentation of environmental
monitoring and audit data and appropriate reporting procedures.
1.4.3
An implementation schedule of the environmental mitigation measures
has been developed and presented in Appendix A in accordance
with the requirements of Clause 3.5.3 of the EIA Study Brief.
2.1.1
The Project EM&A organisation
and lines of communication are defined below.
2.1.2
The roles and responsibilities of various parties involved in the
EM&A process and the
organisational structure of the parties responsible for implementing the
EM&A programme are outlined in the sections below.
Project Manager of Airport Authority
Hong Kong (AAHK/PM)
2.1.3
The Project Manager (PM) or PM’s Representative (PMR) of AAHK is
responsible for overseeing the construction works and for ensuring that the
works are undertaken by the Contractor in accordance with the specification and
contract requirements. The
duties and responsibilities of the AAHK/PM with respect to the EM&A
comprise the following:
•
Monitor the contractor’s compliance with the contract specifications,
the requirements in the Environmental Permit (EP) and EM&A Manual, and the
effective implementation and operation of environmental mitigation measures in
a timely manner;
•
Employ the Environmental Team (ET) to conduct the EM&A works and
an Independent Environmental Checker (IEC) to audit the results of the EM&A
works carried out by the ET;
•
Review the programme of works with a view to identifying any potential
environmental impacts before they arise;
•
Check that mitigation measures that have been recommended in the EIA
Report, this document and contract documents, or as required, are correctly
implemented in a timely manner, when necessary;
•
Oversee the implementation of the agreed Event and Action Plan in the
event of any exceedance; and
•
Instruct the Contractor to follow the agreed protocols or those in the
contract specifications in the event of exceedance or complaints.
The Contractor
2.1.4
The Contractor shall report to the AAHK/PM. The duties and responsibilities of the
Contractor comprise the following:
•
Implement the EIA recommendations and requirements;
•
Provide assistance to ET in
carrying out relevant environmental monitoring and auditing;
•
Participate in the site inspections undertaken by ET
as required, and undertake correction actions;
•
Provide information / advice to ET regarding works
activities which may contribute, or be continuing to the generation of adverse
environmental conditions;
•
Submit proposals on mitigation measures in case of
exceedance of Action and Limit levels in accordance with the Event and Action
Plans;
•
Implement measures to reduce environmental impacts
where Action and Limit levels are exceeded until the events are resolved; and
•
Adhere to the procedures for carrying out complaint investigation.
Environmental Team (ET)
2.1.5
The ET Leader and the ET shall be employed by AAHK/PM to conduct the
EM&A programme and ensure the Contractor’s compliance with the project’s
environmental performance requirements during construction. The ET Leader or the ET shall be an
independent party from the IEC and the Contractor and have relevant
professional qualifications, or have sufficient relevant EM&A experience
subject to approval of the AAHK/PM and EPD. The ET shall
be led and managed by the ET Leader.
The ET Leader shall possess at least 7 years’ experience in EM&A.
2.1.6
The duties and responsibilities of the ET are:
•
Set up all the required environmental monitoring
stations;
•
Monitor various environmental parameters as required
in the EM&A Manual;
•
Analyse the
environmental monitoring and audit data, review the success of EM&A programme, confirm the adequacy of mitigation measures
implemented and the validity of the EIA predictions, and to identify any
adverse environmental impacts arising;
•
Carry out site inspection to investigate and audit the
Contractors' site practice, equipment and work methodologies with respect to
pollution control and environmental mitigation, and take proactive action to
pre-empt problems; carry out ad hoc site inspections if significant
environmental problems are identified;
•
Prepare reports on the environmental monitoring data
and site environmental conditions;
•
Report on the environmental monitoring and audit
results to the IEC, Contractor, the AAHK / PM and the EPD or its delegated
representative;
•
Recommend suitable mitigation measures to the
Contractor in the case of exceedance of Action and Limit Levels in accordance
with the Event and Action Plans;
•
Undertake regular on-site audits / inspections and report to the
Contractor and the AAHK/PM of any potential non-compliance;
•
Follow up and close out non-compliance actions;
•
Timely submission of the EM&A report(s) to the AAHK/PM,
IEC and EPD;
•
Advice the Contractor on environmental improvement,
awareness, enhancement matters, etc. on site;
•
Adhere to the procedures for carrying out complaint
investigation;
•
Liaise with IEC on all the performance matters, and
timely submission of all the EM&A performa for
IEC’s approval; and
•
On as-need basis, verify and certify the environmental
acceptability of the EP holder’s construction methodology (both temporary and
permanent works), relevant design plans and submissions under the EP.
Independent Environmental Checker
(IEC)
2.1.7
The IEC shall advise the AAHK/PM on environmental issues related to
the Project and shall be empowered to audit from an independent viewpoint the
environmental performance during the construction of the Project. The IEC shall be employed by the AAHK/PM
prior to the commencement of the construction of the Project. The IEC shall not be in any way an
associated body of the Contractor or the ET for the Project. The IEC shall be a person who has
relevant professional qualifications in environmental control and at least 7
years’ experience in EM&A.
2.1.8
The duties and responsibilities of IEC are:
•
Review the EM&A works performed by the ET (at not
less than monthly intervals);
•
Audit the monitoring activities and results (at not
less than monthly intervals);
•
Validate and confirm the accuracy of monitoring
results, monitoring equipment, monitoring locations, monitoring procedures and
location of sensitive receivers;
•
Report the audit results to the AAHK/PM;
•
Review and verify the EM&A reports (monthly and
final reports) submitted by the ET;
•
Review the proposal on mitigation measures submitted
by the Contractor in accordance with the Event and Action Plans;
•
Check the mitigation measures submitted by the
Contractor in accordance with the Event and Action Plans;
•
Check the mitigation measures that have been
recommended in the EIA and this Manual, and ensure they are properly
implemented in a timely manner, when necessary;
•
Review the effectiveness of mitigation measures and
project environmental performance regularly in accordance to Event and Action
Plans;
•
Report the findings of site inspections and other
environmental performance reviews to AAHK/PM;
•
Carry out random sample check quarterly and audit on
monitoring data and sampling procedures, etc.;
•
Conduct random monthly site inspection;
•
On as-needed basis, verify and certify the
environmental acceptability of Contractor’s construction methodology (both
temporary and permanent works), including relevant design plans and submissions
under the EP;
•
Verify the investigation results of the
environmental complaints and the effectiveness of corrective measures;
•
Provide feedback of the audit results to the ET and
AAHK/PM according to the requirements in the EM&A manual.
3.1.1
The EIA of
the Project concluded that, with the implementation of the dust suppression
measures stipulated in the Air Pollution Control (Construction Dust)
Regulation, good site practices and proposed mitigation measures, adverse dust
impacts would not be anticipated at the Air Sensitive Receivers (ASRs) in the
vicinity of the construction sites. Construction dust monitoring and regular site
environmental audits are recommended to check the implementation of mitigation measures
and good site practices.
3.1.2
Air quality
monitoring during the operational phase of the Project is considered not
necessary as the Project would not be expected to generate any adverse air
quality impacts to the adjacent identified ASRs.
Monitoring
Parameters and Equipment
3.2.1
Monitoring
and audit of the Total Suspended Particulate (TSP) levels shall be carried out
by the ET to ensure that any deteriorating air quality could be readily
detected and timely actions could be taken to rectify the situation.
3.2.2
The one-hour
TSP levels should be measured by following the standard high volume
sampling method as set out in the Part 50 Chapter 1 Appendix B, Title 40 of the
Code of Federal Regulations of the USEPA.
3.2.3
All the
relevant data including the temperature, pressure, weather conditions,
elapsed-time meter reading for the start and stop of sampler, identification
and weight of the filter paper, and other specific phenomena and works progress
of the concerned works sites, etc, should be recorded in detail. A sample data sheet is shown in Appendix D.
3.2.4
High volume
samplers (HVSs) in compliance with the following specifications should be used
for carrying out the 1-hour TSP monitoring:
(i)
0.6-1.7m3
per minute 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;
(v)
Flow control accuracy:
±2.5% deviation over 24 hours sampling period;
(vi)
Incorporated with an electronic mass
flow rate controller or other equivalent devices;
(vii)
Equipped with
a shelter to protect the filter and sampler;
(viii)
Equipped with a flow recorder for continuous monitoring;
(ix)
Provided with a peaked roof inlet;
(x)
Incorporated with a manometer;
(xi)
Able to hold and seal the filter paper
to the sampler housing at horizontal position;
(xii)
Easy to change the filter; and
(xiii)
Capable of operating continuously for 24 hours period.
3.2.5
The ET is
responsible for the provision, installation, operation, maintenance, dismantle
of the monitoring equipment and should ensure that sufficient number of HVSs
with an appropriate calibration kit is available for carrying out the baseline
monitoring, regular impact monitoring and ad-hoc monitoring. The HVSs should be equipped with an
electronic mass flow controller and be calibrated against a traceable standard
at regular intervals, in accordance with the requirements in the manufacturer’s
operating manual and as described below.
All equipment, calibration kit, filter papers, etc, should be clearly
labelled.
3.2.6
Initial
calibration of the HVSs with mass flow controller should be conducted upon the
installation and thereafter in every 6 months. The transfer standard shall be traceable
to the internationally recognized primary standard and be calibrated
annually. The calibration data
should be properly documented for the future reference by the IEC. The flow rates of the sampler before and
after the sampling with the filter in position should be verified to be
constant and be recorded on the data sheet as mentioned in Appendix D.
3.2.7
If the ET
Leader proposes alternative dust monitoring equipment / methodology (e.g.
direct reading methods), they shall submit sufficient information to the IEC to
prove that the instrument is capable of achieving a comparable result to the
HVS. Also, the 1-hour sampling
shall be determined periodically by HVS to check the validity and accuracy of
the results measured by direct reading method, and the instrument should also
conduct necessary assurance (QA)/ quality control (QC).
3.2.8
Wind data
monitoring equipment shall also be provided and set up 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 IEC. For installation and operation of wind
data monitoring equipment, the following points shall be observed:
•
The wind sensors shall be installed at an elevated
level 10m above ground so that they are clear of obstructions or turbulence
caused by the buildings;
•
The wind data shall be captured by a data logger. The data recorded in the data logger
shall be downloaded periodically for analysis at least once a month;
•
The wind data monitoring equipment shall be
re-calibrated at least once every six months; and
•
Wind direction shall be divided into 16 sectors of
22.5 degrees each.
3.2.9
In
exceptional situations, the ET may propose alternative methods to obtain
representative wind data upon agreement from the IEC. The instrument should also conduct
necessary quality assurance (QA) / quality control (QC) and be calibrated
regularly following the requirements specified by the equipment manufacturers.
Laboratory
Measurement / Analysis
3.2.10
A clean
laboratory with constant temperature and humidity control, and equipped with
necessary measuring and conditioning instruments to handle the dust samples
collected, shall be available for sample analysis, and equipment calibration
and maintenance. The laboratory
should be Hong Kong Laboratory Accreditation Scheme (HOKLAS) accredited or
other internationally accredited laboratory.
3.2.11
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
verified by IEC. Measurement
performed by the laboratory shall be demonstrated to the satisfaction of the ER
and the IEC.
3.2.12
IEC shall
conduct regular audit to the measurement performed by the laboratory to ensure
the accuracy of measurement results.
The ET Leader shall provide the ER with one copy of the Title 40 of Code
of Federal Regulations, Chapter 1 (Part 50), Appendix B for his / her
reference.
3.2.13
Filter
paper of size 8” x 10” shall be labelled before sampling. It shall be a clean filter paper with no
pinholes, and shall be conditioned in a humidity-controlled chamber for over 24
hours and be pre-weighed before use for the sampling.
3.2.14
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 0.1 mg.
The balance shall be regularly calibrated against a traceable standard.
3.2.15
All
collected samples shall be kept in a good condition for 6 months before
disposal.
Dust
Monitoring Stations
3.2.16
The locations
of the proposed construction dust monitoring stations are listed in Table
3.1
and Table 3.2, and depicted in Figure 3.1.
Table 3.1 Proposed
Dust Monitoring Stations for ATCL
during Construction Phase
|
Monitoring Station ID |
Representative ASR ID in
EIA Report |
Description |
|
A20 |
Tung Chung
Community Garden |
|
|
AM2 |
A11 |
Hong Kong
Airlines Training Academy |
|
AM3 |
A10 |
CNAC House |
Table 3.2 Proposed Dust Monitoring
Stations for the Proposed Marine Facilities during Construction Phase
|
Monitoring Station ID |
Representative
ASR ID in EIA Report |
Description |
|
AM4 |
P04 |
Planned Commercial Use |
* Impact monitoring
should be conducted at the monitoring stations for 1-hour TSP monitoring when
there are project-related construction activities being undertaken within a
radius of 500m from these monitoring stations.
3.2.17
The status
and locations of the air sensitive receivers (ASRs) may change after this
EM&A Manual has been issued. In
such cases, the ET should propose the updated monitoring locations and seek
agreement from the AAHK/PM, IEC and EPD.
The alternative monitoring locations should be proposed based on the
following criteria.
(i)
Monitoring at site
boundary or at ASRs close to the major site activities which are likely to have
air quality impacts;
(ii)
Monitoring as
close as possible to the ASRs as defined in the EIAO-TM;
(iii)
Assurance of
the minimal disturbance to the occupants and working under a safety condition
during monitoring; and
(iv)
Take into account the prevailing meteorological conditions.
3.2.18
The ET
shall agree with IEC on the position of the HVS for the installation of the
monitoring equipment. When
positioning the HVSs, the following points should be noted:
(i)
A horizontal
platform with the appropriate support to secure the HVSs against the gusty wind
should be provided;
(ii)
No two HVSs
should be placed less than 2m apart;
(iii)
The distance
between the HVSs and an obstacle, e.g. buildings, must be at least twice the
height of the obstacle protruding above the HVSs;
(iv)
A minimum of
2m separation from the walls, parapets and penthouses is required for rooftops
HVSs;
(v)
A minimum of
2m separation from any supporting structures measured horizontally is required;
(vi)
No furnace or
incinerator flue is nearby;
(vii)
Airflow around
the HVSs is unrestricted;
(viii)
The HVSs are
more than 20m from the dripline;
(ix)
Any wire
fences and gate, to protect the HVSs, should not cause obstructions during
monitoring;
(x)
Permission
must be obtained to set up the HVSs and to obtain access to the monitoring
stations; and
(xi)
A secured
supply of electricity is needed to operate the HVSs.
Baseline
Monitoring
3.2.19
Baseline
monitoring should be carried out to obtain the ambient 1-hour TSP samples at
the designated monitoring locations for at least two weeks prior to the
commencement of the major construction works for the Project. Ambient 1-hour sampling should be done
at least 3 times per day at each monitoring station. Prior to commencing the baseline
monitoring, the ETL should inform the IEC of the baseline monitoring programme
such that the IEC can conduct the on-site audit to ensure the accuracy of the
baseline monitoring results
3.2.20
During the
baseline monitoring, there should not be any major construction or dust
generating activities in the vicinity of the monitoring stations as far as
practicable. General meteorological
conditions (e.g. wind speed, direction and precipitation) and notes regarding
any significant adjacent dust producing sources should be recorded throughout
the baseline monitoring. If the ETL
considers that significant changes in the ambient conditions have arisen, a
repeat of the baseline monitoring may be carried out to update the baseline
levels and Action levels, upon the consultation and agreement with the AAHK/PM, IEC and
EPD.
3.2.21
In case the
baseline monitoring cannot be carried out at the designated monitoring
locations, the ET shall carry out the monitoring at alternative locations that
can effectively represent the baseline conditions at the impact monitoring
location. The alternative baseline
monitoring locations shall be agreed with the IEC and EPD prior to commencement
of baseline monitoring.
3.2.22
In exceptional cases, when baseline
monitoring data obtained are insufficient or questionable, the ET should liaise
with the IEC and EPD to agree on an appropriate set of data to be used as the
baseline reference.
Impact
Monitoring
3.2.23
The monthly
schedule of the impact monitoring programme should be drawn up by the ET one
month prior to the commencement of the scheduled construction period.
3.2.24
For 1-hour
TSP impact monitoring, the sampling frequency of at least three times in every 6
days should be conducted when the highest dust impacts occurs.
3.2.25
Before
commencing the impact monitoring, the ET should inform the IEC of the impact
monitoring programme such that the IEC can conduct an on-site audit to ensure
the accuracy of the impact monitoring results.
Action and
Limit Levels
3.2.26
The
baseline monitoring results form the basis for determining the air quality
criteria for the impact monitoring during the construction phase. The ET shall compare the impact
monitoring results with air quality criteria set up for 1-hour TSP. The air quality criteria, namely Action
and Limit Levels, are summarised in Table 3.3.
Table 3.3 Action and Limit (A/L) Levels for Air Quality
|
Parameter |
Action
Level* |
Limit
Level |
|
1-hour
TSP Level in μg/m3 |
BL £ 384 μg/m3, AL = (BL x 1.3 +
LL)/2 BL > 384 μg/m3,
AL = LL |
500 μg/m3 |
* BL = Baseline level; AL = Action level; LL = Limit level
3.2.27
The Event
and Action Plan prescribes the procedures and action associated with the
outcome of the comparison of the air quality monitoring data recorded and the
agreed A/L levels. In the cases
where exceedances of these A/L levels occur, the ET, IEC, AAHK/PM and
Contractor should strictly observe the relevant actions of the respective Event
and Action Plan as listed in Table 3.4.
Event and
Action Plan
3.2.28
Should
non-compliance of the air quality criteria occur, actions in accordance with
the Event and Action Plan in Table 3.4 shall be carried out.
Table 3.4 Event and Action Plan for Air Quality
|
EVENT |
ACTION |
|||
|
ET |
IEC |
AAHK/PM |
Contractor |
|
|
1. Action
level exceedance for one sample |
1. Repeat measurement to confirm finding; 2. If exceedance is confirmed, inform Contractor, IEC and AAHK /PM. 3. Identify sources, investigate the causes of exceedance and
propose remedial measures. 4. Discuss with the Contractor, IEC and AAHK/PM on the remedial measures
required. 5.
Increase monitoring frequency to daily. |
1. Check monitoring data submitted by ET. 2. Check Contractor’s working methods. 3. Discuss with ET, AAHK/PM and Contractor on possible
remedial measures. 4. Review and advise ET and AAHK/PM on the
effectiveness of the proposed remedial measures. |
1. Confirm
receipt of notification of exceedance in writing. |
1. Identify source(s), investigate the causes of
exceedance and propose remedial measures. 2. Implement remedial measures. 3. Amend working methods agreed with the AAHK/PM as appropriate. |
|
2. Action
level exceedance for two or more consecutive samples |
1. Repeat measurements to confirm findings. 2. If exceedance is confirmed, inform Contractor, IEC and AAHK /PM. 3. Identify sources, investigate the causes of
exceedance and propose remedial measures. 4. Advise the Contractor and AAHK/PM on the
effectiveness of the proposed remedial measures; 5. Increase monitoring frequency to daily. 6. If exceedance continues, arrange meeting with the
IEC, Contractor and AAHK/PM to discuss measures to be taken. 7. If exceedance stops, cease additional monitoring. |
1. Check
monitoring data submitted by ET. 2. Check
the Contractor’s working methods. 3. Discuss
with the ET, AAHK/PM and Contractor on possible remedial measures. 4. Review
and advise ET, AAHK/PM on the effectiveness of proposed remedial measures. |
1. Confirm receipt of notification of exceedance in
writing. 2. In consultation with ET and IEC agree with
Contractor on the remedial measures to be implemented. 3. Supervise implementation of remedial measures. |
1. Identify source(s), investigate the causes of
exceedance and propose remedial measures. 2. Submit proposals for remedial measures to AAHK/PM, ET and IEC within 3 working days of notification for agreement. 3. Implement the agreed proposals. 4. Amend proposal as appropriate. |
|
3. Limit
level exceedance for one sample |
1. Repeat measurement to confirm finding. 2. If exceedance is confirmed, inform IEC, AAHK/PM, Contractor and EPD. 3. Increase monitoring frequency to daily. 4. Discuss with the AAHK/PM, IEC and Contractor on the
remedial measures and assess effectiveness. 5. Keep IEC, AAHK/PM and EPD informed of the results of
the effectiveness of remedial measures. |
1. Check
monitoring data submitted by ET. 2. Check
Contractor’s working methods. 3. Discuss
with the ET, AAHK/PM and Contractor on possible remedial measures. 4. Review
and advise ET and AAHK/PM on the effectiveness of the proposed remedial
measures. |
1. Confirm receipt of the notification of exceedance in
writing. 2. Review and agree on the remedial measures proposed
by Contractor. 3. Ensure remedial measures are properly implemented. 4. Supervise implementation of remedial measures. |
1. Identify source(s), investigate the causes of
exceedance and propose remedial measures. 2. Take immediate action to avoid further
exceedance. 3. Submit proposals for remedial measures to AAHK/PM, ET and IEC within 3 working
days of notification for agreement.
4. Implement the agreed proposals. 5. Amend proposals as appropriate. |
|
4. Limit
level exceedance for two or more consecutive samples |
1. Repeat measurements to confirm findings. 2. If exceedance is confirmed, inform IEC, AAHK/PM, Contractor
and EPD. 3. Increase monitoring frequency to daily. 4. Carry out analysis of the Contractor’s working
procedures to determine the possible mitigation to be implemented. 5. Arrange meeting with IEC and AAHK/PM to discuss
the remedial measures to be taken. 6. Assess the effectiveness of the Contractor’s
remedial measures and keep the IEC, EPD and AAHK/PM informed
of the results. 7. If exceedance stops, cease additional monitoring. |
1. Check monitoring data submitted by ET 2. Discuss amongst AAHK/PM, ET and Contractor on the
potential remedial measures. 3. Review the Contractor’s remedial action whenever
necessary to assure their effectiveness and advise AAHK/PM and ET
accordingly. |
1. Confirm receipt of the notification of exceedance in
writing. 2. In consultation with IEC and ET, agree with
Contractor on the remedial measures to be implemented. 3. Supervise the implementation of remedial measures to
be implemented. 4. If exceedance continues, consider what portion of works
is responsible and instruct the Contractor to stop that portion of works
until the exceedance is abated. |
1. Identify source(s), investigate the causes of
exceedance and propose remedial measures. 2. Take immediate action to avoid further exceedance. 3. Submit proposals for remedial measures to the AAHK/PM and copy
to the IEC and ET within 3 working days of notification. 4. Implement the agreed proposals. 5. Review and resubmit proposals if problems still not
under control. 6. Stop the relevant portion of works as determined by
AAHK/PM until the exceedance is abated. |
Notes: ET – Environmental
Team; EP – Environmental Permit; PM – Project Manager; IEC – Independent
Environmental Checker; AAHK – Airport
Authority Hong Kong
3.3.1
The
specific mitigation measures recommended in the EIA report comprise watering of
the construction areas, good site practices and dust suppression measures
stipulated in the Air Pollution Control (Construction Dust) Regulation. The Contractor shall be responsible for
the design and implementation of these measures. In addition, mitigation measures to
control the exhaust emissions from construction plant and equipment are also
required. All the recommended good
practices are summarised in the Environmental Mitigation Implementation
Schedule (EMIS) in Appendix A.
3.4.1
Regular
site inspection and audit at least once per week should be conducted during the
construction phase of the Project to ensure the recommended mitigation measures
are properly implemented.
4.1.1
Potential
noise impacts arising from the construction and operational phases of the
Project were assessed in the EIA Report.
Construction noise arising from the construction activities would be the
major potential noise impact during the construction phase. With the implementation of mitigation
measures, no adverse construction noise impact is anticipated. Construction noise monitoring and
regular site environmental inspection during construction phase is
required. During the operational
phase, noise commissioning test for zero emission vehicles shall be conducted
prior to the operation of the Project to confirm that the relevant standards
stipulated in EIAO-TM and Noise Control Ordinance (NCO) would be complied with. The assessment results indicated that no
adverse noise impact under unmitigated scenario, mitigation measure is not
required during operational phase.
Construction Phase
4.2.1
No adverse
construction noise impact is anticipated with the implementation of mitigation
measures such as good site practices, use of quieter construction methods, quieter
powered mechanical equipment (PME), noise insulating fabric, noise barrier, and
noise enclosure to screen noise from PME.
All the recommended mitigation measures and good site practices are
summarised in the EMIS given in Appendix A.
4.2.2
A Construction
Noise Management Plan (CNMP) should be prepared to submit during pre-tender
stage, if any, and before commencement of construction works, so that both the
verification of the inventory of noise sources, and the assessment of the
effectiveness and practicality of all identified measures for mitigating the
construction noise impact of the Project, would be performed during the design,
tendering and implementation stage of the construction works. A clear method statement of all the
recommended mitigation measures for controlling the construction noise impacts
should be formulated in the CNMP(s) to be prepared by future Contractors, such
that all the recommended mitigation measures will be implemented and executed
properly. In case there is any
change to noise mitigation measures, the Contractor should update the CNMP
accordingly to demonstrate the compliance of EIAO-TM with the implementation of
proposed noise mitigation measures.
The CNMP(s) should be certified by the ET Leader and verified by the
IEC.
Operational Phase
4.2.3
For the operational
noise impact, no adverse impact is expected with properly selection of the zero
emission vehicles. Noise
commissioning test of the zero emission vehicles should be carried out prior to
operation to verify the Sound Power Level (SWL) of the zero emission vehicles
is 100dB(A) or below.
Monitoring Equipment and Methodology
4.3.1
As referred
to the requirements of the Technical Memorandum (TM) issued under the NCO, the
sound level meters in compliance with the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1)
specifications should be used for carrying out the noise monitoring. Immediately prior to and following each
noise measurement, the accuracy of the sound level meter should be checked
using an acoustic calibrator generating a known sound pressure level at a known
frequency. Measurements may be
accepted as valid only if the difference between calibration levels obtained
before and after the noise measurement is less than 1.0dB.
4.3.2
Noise measurement
should be made in accordance with standard acoustical principles and practices
in relation to weather conditions.
4.3.3
The ET is responsible for the provision,
installation, operation, maintenance, dismantle of the monitoring equipment and
should ensure that sufficient noise measuring equipment and associated
instrumentation are available for carrying out the baseline monitoring, regular
impact monitoring and ad hoc monitoring.
All the equipment and associated instrumentation should be clearly
labelled.
Noise Parameters and Criteria
4.3.4
The construction
noise level should be measured in terms of the A-weighted equivalent continuous
sound pressure level (Leq). The Leq(30min)
should be used as the monitoring parameter for the time period from 0700-1900
hours on any day not being a Sunday or general holiday. For all other time periods, Leq(5min) shall be employed for
comparison with the NCO criteria. The
supplementary information for data auditing and statistical results, e.g. L10
and L90, should be obtained for reference. A sample data record sheet is shown in Appendix D for
reference.
Monitoring
Location
4.3.5
The locations of the construction noise
monitoring stations are summarised in Table 4.1 and shown in Figure 4.1.
Table 4.1 Proposed
Construction Noise Monitoring Stations
|
Monitoring Station ID |
Representative NSR ID |
Description |
|
NM1 |
N01 |
Seaview Crescent |
|
NM2 |
N03 |
Ling Liang Church E Wun Secondary School |
|
NM3 |
N08 |
Fu Tung Estate Tung Ma House |
|
NM4 |
N09 |
Tung Chung Crescent |
|
NM5 |
N10 |
Priests’ Quarters of the Planned
Visitation Church Development |
4.3.6
When
alternative monitoring locations are proposed, they should be chosen based on
the following criteria:
•
At locations close to the major construction works
activities that are likely to have noise impacts;
•
Close to
the most affected existing NSRs; and
•
The
assurance of the minimal disturbance and working under a safe condition to the
occupants during the monitoring in the vicinity of the NSRs.
4.3.7
The monitoring station shall normally be at
a point 1m from the exterior of the sensitive receiver building façade and be
at a position 1.2m above the ground.
If there is problem with access to the normal monitoring position, an
alternative position should be chosen, and a correction to the measurement
results should be made. For
reference, a correction of +3dB(A) should be made to the free-field
measurements. The ETL should agree
with the IEC and EPD on the alternative monitoring position and corrections
adopted. Once the positions for the
monitoring stations are chosen, the baseline and impact monitoring should be
carried out at the same positions.
Baseline Monitoring
4.3.8
The ET should carry out the baseline noise
monitoring in all identified construction noise monitoring stations prior to
the commencement of the construction works. The baseline noise levels should be
measured for a continuous period of at least 14 consecutive days at a minimum
logging interval of 30 minutes during the daytime between 0700-1900, and 5
minutes between 1900 and 0700 as well as all time at general holidays including
Sundays. A-weighted levels Leq, L10 and L90 should be
recorded at the specified intervals.
A schedule for the baseline monitoring should be submitted to the
AAHK/PM and IEC for approval before the baseline monitoring starts.
4.3.9
There should not be any construction
activities in the vicinity of the construction noise monitoring stations during
the baseline monitoring. Any
non-project related construction activities in the vicinity of the monitoring
stations during the baseline monitoring should be noted and the source and
location of such activities should be recorded.
4.3.10
In exceptional cases, when baseline
monitoring data obtained are insufficient or questionable, the ET should liaise
with the IEC and EPD to agree on an appropriate set of data to be used as the
baseline reference.
Impact Monitoring
4.3.11
During normal construction working hours
(0700-1900 hours on any day not being a Sunday or general holiday), monitoring
of Leq(30min) noise levels should
be carried out at the agreed monitoring locations once every week in accordance
with the methodology in the TM issued under the NCO when there are
project-related construction activities being undertaken within a radius of
300m from these monitoring stations.
4.3.12
In case of non-compliances with the
construction noise criteria, more frequent monitoring as specified in the Event
and Action Plan should be carried out.
This additional monitoring should be continued until the recorded noise
levels are rectified or proved to be irrelevant to the project-related
construction activities.
4.3.13
The monthly schedule of the impact
monitoring programme should be drawn up by the ET at least 2 weeks prior to the
commencement of the scheduled construction period. Before commencing impact monitoring, the
ET shall inform the IEC of the impact monitoring programme such that the IEC
can conduct on-site audit.
Action and Limit Levels
4.3.14
The Action and Limit levels for the
construction noise are shown in Table 4.2. The ET should compare the
construction noise monitoring results with noise criteria, namely Action and
Limit Levels to be used.
Table
4.2 Action
and Limit (A/L) Levels for Construction Noise
|
Time Period |
Action Level |
Limit Level |
|
0700 – 1900 hours on normal weekdays |
When one documented complaint is received |
75 dB(A) for residential premises |
|
70 dB(A) for school and |
Event and Action Plan
4.3.15
Should non-compliance of the noise criteria
occur, actions in accordance with the Event and Action Plan (Table 4.3) should be carried out.
Table
4.3 Event
and Action Plan for Construction Noise
|
EVENT |
ACTION |
|||
|
ET |
IEC |
AAHK/PM |
Contractor |
|
|
Action Level |
1. Notify IEC, AAHK/PM and Contractor. 2. Identify source and carry out investigation. 3. Report the results of investigation to the IEC and
Contractor. 4. Discuss jointly with the AAHK/PM and
Contractor and formulate remedial measures. 5. Increase the monitoring frequency to check the
effectiveness of mitigation measures. |
1.
Review the analysed results submitted
by ET. 2.
Review the construction
methods and proposed remedial measures by the Contractor, and advise the ET
and AAHK/PM accordingly. |
1.
Confirm receipt of the notification of failure in writing. 2.
Notify Contractor. 3.
Require Contractor to
propose remedial measures
for the analysed noise problem. 4.
Ensure remedial measures are properly implemented. |
1.
Identify source, and carry out investigation and report the
investigation to ET, IEC and AAHK/PM. 2.
Submit noise mitigation proposals to ET, IEC and AAHK/PM. 3.
Implement noise mitigation proposals. |
|
Limit Level |
1. Notify
IEC, AAHK/PM, Contractor and EPD. 2. Identify sources and carry out investigation. 3. Repeat measurements to confirm findings. 4. Increase the monitoring frequency. 5. Carry out analysis of the Contractor’s working
procedures to determine possible mitigations to be implemented. 6. Record and inform IEC, AAHK/PM and EPD the causes
and action taken for the exceedances. 7. Assess the effectiveness of the Contractor’s
remedial action and keep the IEC, AAHK/PM and EPD informed of the results. 8. If exceedance stops,
cease additional monitoring. |
1. Check
monitoring results and discuss amongst the AAHK/PM, ET and Contractor on the potential remedial actions. 2. Ensure remedial measures implemented properly. 3. Review Contractor remedial actions whenever
necessary to assure their effectiveness and advise the AAHK/PM accordingly. |
1. Confirm
receipt of notification of exceedance in writing. 2. Notify Contractor. 3. Require Contractor to propose remedial measures for
the analysed noise problems. 4. Ensure remedial measures are properly implemented. 5. If exceedance continues, consider what portion of
work is responsible and instruct the Contractor to stop that portion of works until the exceedance is abated. |
1. Identify source, and carry out investigation and
report the investigation to ET, IEC and AAHK/PM. 2. Take immediate action to avoid further exceedance. 3. Submit proposals for remedial actions to ET, IEC and
AAHK/PM within 3 working days of notification. 4. Implement the agreed proposals. 5. Resubmit proposals if problems still not under
control. 6. Stop the relevant portion of works as determined by
the AAHK/PM until the exceedance is abated. |
Notes: ET – Environmental Team; PM – Project Manager; IEC – Independent
Environmental Checker; AAHK – Airport
Authority Hong Kong
4.3.16
In order to
account for cases in which ambient noise levels, as identified in the baseline
monitoring, approach or exceed the stipulated Limit Levels prior to the commencement
of the construction, a Maximum Acceptable Impact Level, which incorporates the
baseline noise levels and the identified construction noise Limit Level, may be
defined and agreed with the EPD.
The amended level would be greater than 75dB(A) and represent the
maximum acceptable noise level at a specific monitoring station. Correction factors for the effects of the
acoustic screening and/or architectural features of NSRs may also be applied as
specified in the Technical Memorandum on Noise from Construction Work other
than Percussive Piling (GW-TM).
Maximum Allowable Sound Power Levels of Fixed Plant
4.4.1
The maximum
allowable sound power level of zero emission vehicles (i.e. 100 dB(A)) was
predicted in the EIA Report. With
the proper selection of zero emission vehicles, the operational noise levels
would comply with the noise standards stipulated in the EIAO-TM and NCO.
Commissioning Test
4.4.2
Prior to
the operation of the ATCL, noise commissioning test for the operational noise
sources (zero emission vehicles) shall be conducted to ensure the noise
emission comply with the maximum allowable sound power level in the EIA
Report. The noise commissioning
test report should be submitted to ETL for certification, IEC for verification
and to EPD for approval prior to the operation.
4.5.1
Regular
site inspection at least once per week and regular site audit at least once per
month should be conducted during the construction phase of the Project to
ensure the recommended mitigation measures are properly implemented.
5.1.1
Potential water quality impacts arising
from the construction phase and operational phase of the Project were
identified and assessed in the EIA Report.
No adverse water quality impacts from the Project would be expected
during the construction and operational phase of the Project with proper
implementation of the recommended mitigation measures and good site practices.
5.2.1
The EIA Report has recommended mitigation
measures during construction and operational phases. The proposed mitigation measures are
summarized in the EMIS in Appendix A.
5.3.1
Monitoring for Dissolved Oxygen (DO),
Dissolved Oxygen Saturation (DO%), temperature, pH, turbidity, salinity, suspended
solid (SS) and water depth should be undertaken at all designated monitoring
locations. All parameters should be
measured in-situ whereas SS should be determined by an accredited laboratory. DO should be presented in mg/L and in %
saturation.
5.3.2
Two (2) replicate in-situ
measurements and samples collected from each independent sampling event shall
be collected to ensure a robust statistically interpretable database.
5.3.3
Other relevant data should also be
recorded, including monitoring location / position, time, water depth, tidal
stages, weather conditions and any special phenomena or work underway at the
construction site.
5.4.1
5 locations
(IM1, SR1, SR2, C1 and C2) are proposed to monitor for works conducted in
vicinity of marine facilities in the waters between Airport Island and HKP
Island during construction phase of the Project. 5 locations (IM2, IM3, SR3, C3 and C4)
are proposed to monitor for marine viaduct works between the Airport Island and Tung
Chung during construction phase as well as
the operational phase maintenance dredging of the Project.
5.4.2
The
proposed marine water quality monitoring stations are listed in Table 5.1 and Table 5.2 and its
locations are shown in Figure 5.1. The ET shall seek approval from IEC and
EPD for any alternative monitoring locations.
Table 5.1 Proposed
Marine Water Quality Monitoring Stations for Marine Facilities during the
Construction Phase and the Maintenance Dredging during the Operational Phase
|
Station |
Descriptions |
Easting |
Northing |
|
IM1 |
Impact station |
812658 |
820508 |
|
SR1 |
Hong
Kong Port Seawater Intake |
812736 |
820086 |
|
SR2 |
SKYCITY
Seawater Intake |
812280 |
819784 |
|
C1 |
Control station |
814132 |
822185 |
|
C2 |
Control station |
811444 |
822421 |
Table 5.2 Proposed
Marine Water Quality Monitoring Stations for the Marine Viaduct during
Construction Phase
|
Station |
Descriptions |
Easting |
Northing |
|
IM2 |
Impact station |
812258 |
817871 |
|
IM3 |
Impact station |
810725 |
816626 |
|
SR3 |
Seawater
Intake at Tung Chung |
811780 |
817172 |
|
C3 |
Control station |
812785 |
818754 |
|
C4 |
Control station |
809533 |
817234 |
5.4.3
When alternative monitoring locations are proposed, they shall be
chosen based on the following criteria:
•
close to the sensitive receivers which are directly or likely to be affected;
•
for monitoring locations located in the vicinity of
the sensitive receivers, care shall be taken to cause minimal
disturbance during monitoring;
•
two or more control stations which shall be at representative
locations of the Project site in its undisturbed condition. Control stations
shall be located,
as far as practicable, both
upstream and downstream of the works area.
5.5.1
The following equipment and facilities should be provided by the ET
and used for the monitoring of water quality impacts:
Monitoring
Position Equipment
5.5.2
A hand-held or boat-fixed type digital Differential Global Positioning
System (DGPS) with way point bearing indication or other equipment instrument
of similar accuracy, should be provided and used during water quality
monitoring to ensure the monitoring vessel is at the correct location before
taking measurements.
Water Sampling
Equipment
5.5.3
A water sampler is required. It should comprise a transparent PVC
cylinder, with a capacity of not less than 2 litres, which can be effectively
sealed with latex cups at both ends.
The sampler should have a positive latching system to keep it open and
prevent premature closure until released by a messenger when the sampler is at
the selected water depth (for example, Kahlsico Water
Sampler or an approved similar instrument).
Water Depth Detector
5.5.4
A portable, battery-operated echo sounder should be used for the
determination of water depth at each designated monitoring station. This unit can either be hand held or
affixed to the bottom of the work boat, if the same vessel is to be used
throughout the monitoring programme.
Dissolved Oxygen, Dissolved Oxygen Saturation and Temperature
Measuring Equipment
5.5.5
The equipment should be portable and weatherproof. The equipment should also complete with
cable and sensor, and use a DC power source. The equipment should be capable of
measuring:
•
a DO-level in the range of 0 - 20 mg/L and 0 -
200% saturation; and
•
a temperature of 0 - 45 degree Celsius with a
capability of measuring to ±0.1 degree Celsius.
5.5.6
It should have a membrane electrode with automatic temperature
compensation complete with a cable.
Sufficient stocks of spare electrodes and cables should be available for
replacement where necessary (for example, YSI model 59 meter, YSI 5739 probe,
YSI 5795A submersible stirrer with reel and cable or other
approved similar instrument).
5.5.7
Should salinity compensation not be built-in to the DO equipment, in-situ salinity should be measured to
calibrate the DO equipment prior to each DO measurement.
Turbidity
Measuring Instrument
5.5.8
Turbidity should be measured in-situ by the nephelometric method. The instrument should be portable and
weatherproof using a DC power source complete with cable, sensor and
comprehensive operation manuals. It
should have a photoelectric sensor capable of measuring turbidity between 0 -
1000 NTU (for example, Hach model 2100P or an approved similar instrument). The cable should not be less than 25m in
length. The meter should be
calibrated in order to establish the relationship between NTU units and the
levels of suspended solids. The
turbidity measurement should be carried out on split water sample collected
from the same depths of suspended solids samples.
Salinity Measuring Equipment
5.5.9
A portable salinometer capable of measuring salinity in the range of 0
- 40 parts per thousand (ppt) should be provided for measuring salinity of the
water at each monitoring location.
pH Measuring Equipment
5.5.10
The instrument shall consist of a potentiometer, a glass electrode, a
reference electrode and a temperature-compensating device. It shall be readable to 0.1 pH in a
range of 0.0 to 14.0. Standard buffer solutions of at least pH 7 and pH 10 shall be used for
calibration of the instrument before and after use. Details of the method shall comply with
APHA, 19th Edition 4500-HTB.
Sample Containers and Storage
5.5.11
Water samples for SS determination should be stored in high density
polythene containers with no preservative added, packed in ice (cooled to 4℃ without being frozen) and delivered to the testing laboratory within
24 hours of collection and analysed as soon as possible after collection. Sufficient volume of samples should be
collected to achieve the detection limit.
Calibration of in-situ Instruments
5.5.12
The pH meter, DO meter and turbidimeter should be checked, calibrated
and certified by a laboratory accredited under HOKLAS or any other
international accreditation scheme before use and subsequently re-calibrated at
three monthly intervals throughout all stages of the water quality
monitoring. Responses of sensors
and electrodes should be checked with certified standard solutions before each
use. Wet bulb calibration for a DO
meter should be carried out before measurement at each monitoring location.
5.5.13
For the on-site calibration of field equipment, the BS 127:1993, Guide
to Field and On-Site Test Methods for the Analysis of Water should be observed.
Back-up Equipment
5.5.14
Sufficient stocks
of spare parts should be maintained for replacements when necessary. Backup monitoring equipment should also
be made available so that monitoring can proceed uninterrupted even when some
equipment is under maintenance, calibration, malfunction, etc.
5.6.1
At least 2 replicate samples from each independent sampling event are
required for the SS measurement.
Analysis of SS level should be carried out in a HOKLAS (or other international accredited laboratory that is
HOKLAS-equivalent). Sufficient
water samples of not less than 2 litres should be collected at the monitoring
stations for carrying out the laboratory SS determination. All samples should be assigned a unique
code and accompanied by Chain of Custody (COC) sheets.
5.6.2
The SS determination work should start within 24 hours after
collection of the water samples.
The SS analyses should follow the standard method APHA 2540D with a
detection limit of 1 mg/L as described in APHA
Standard Methods for the Examination of Water and Wastewater, 21st
Edition, unless otherwise specified.
5.6.3
Detailed testing methods, pre-treatment procedures, instrument use,
Quality Assurance/Quality Control (QA/QC) details (such as blank, spike
recovery, number of duplicate samples per batch, etc.), detection limits and
accuracy should be submitted to EPD for approval prior to the commencement of
monitoring programme. EPD may also
request the laboratory to carry out analysis of known standards provided by EPD
for quality assurance. The testing
methods and related proposal should be checked and certified by IEC before
submission to EPD for approval.
5.6.4
Additional duplicate samples may be required by EPD for inter
laboratory calibration.
Remaining samples after analysis should be kept by the laboratory for 3
months in case repeat analysis is required. If in-house or non-standard methods are
proposed, details of the method verification may also be required to submit to
EPD. In any circumstance, the
sample testing should have comprehensive quality assurance and quality control
programmes. The laboratory should
prepare to demonstrate the programmes to EPD or his representatives when
requested.
5.7.1
Baseline, impact and post construction monitoring shall be conducted. The
following requirements should be followed for baseline, impact and post
construction monitoring.
•
Measurement should be taken at 3 water depths, namely,
1m below water surface, mid-depth and 1m above sea bed, except where the water
depth less that 6m, the mid-depth station may be omitted. Should the water depth be less than 3m,
only the mid-depth station will be monitored. The ET should agree with EPD on all the
monitoring stations.
•
Duplicate in-situ measurements and water samples
collected from each independent monitoring event are required for all
parameters to ensure a robust statistically interpretable dataset.
•
No sampling should be carried out when typhoon signal
No. 3 or above or black rainstorm signal is hoisted.
•
At each measurement depth, two consecutive
measurements would be taken. The
probes would be retrieved out of the water
after the first measurement and then redeployed for the second measurement. When
the difference in value between the first and second measurement of on-site parameters is more than 25% of the value of the first reading, the reading shall be discarded and further
readings shall be taken.
Construction Phase Baseline Monitoring
5.7.2
Baseline conditions for marine water quality should be established and
agreed with EPD prior to the commencement of all marine construction works. The purpose of the baseline
monitoring is to establish ambient conditions prior to the commencement of the
marine construction works and to demonstrate the suitability of the proposed impact
and control monitoring stations.
5.7.3
The baseline monitoring report should be submitted to EPD at least 2 weeks
before the commencement of marine construction works for agreement. EPD shall also
be notified immediately for any changes in schedule. The baseline monitoring report
should be certified by the ET Leader and verified by IEC before submission to
EPD.
5.7.4
The baseline conditions should be established by measuring water
quality parameters as specified in Section
5.3 at the designated monitoring stations (IM1, SR1, C1 and C2 for
construction phase marine works in vicinity of marine facilities; IM2, IM3,
SR2, C3 and C4 for construction of marine viaduct between Airport Island and Tung
Chung) as shown in Table 5.1 andTable 5.2. The measurement depths shall follow
those specified in Section 5.7.1. The measurements should be taken at all
designated monitoring stations including control station, 3 days per week, at
mid-flood and mid-ebb tides, for at least 4 weeks prior to the commencement of
marine works. There should not be
any marine construction activities in the vicinity of the stations during the
baseline monitoring. The interval
between 2 sets of monitoring should not be less than 36 hours.
5.7.5
In general, where the difference in value between the
first and second in-situ measurement of DO or turbidity parameters is more than
25% of the value of the first reading, the reading shall be discarded and
further readings should be taken.
5.7.6
There should be no construction work in the vicinity of
the stations during the baseline monitoring. The baseline data will be used to
establish the Action and Limit Levels.
The determination of Action and Limit Levels will be discussed in Section
5.7.16.
Construction Phase Impact Monitoring
5.7.7
During the marine construction period, impact monitoring should be
undertaken 3 days per week, at mid-flood and mid-ebb tides, with
sampling/measurement at the same monitoring stations including control station
as specified in Section 5.7.4. The interval between 2 sets of
monitoring should not be less than 36 hours except where there are exceedances
of Action and/or Limit levels, in which case the monitoring
frequency will be increased. The
monitoring parameters and measurement depths shall follow those specified in Section 5.3 and Section 5.7.1, respectively.
Duplicate water samples should be taken and analysed.
5.7.8
The proposed water quality monitoring schedule shall be
submitted to EPD by the ET at least 2 weeks before the first day of the
monitoring month. EPD shall also be notified immediately for any
changes in schedule.
5.7.9
In general, where the difference in value between the
first and second in-situ measurement of DO or turbidity parameters is more than
25% of the value of the first reading, the reading shall be discarded and
further readings should be taken.
5.7.10
In case of project-related exceedances of Action and/or
Limit Levels, analysis should
be conducted to identify whether the exceedance is caused by Project
activities. If the data analysis
results indicate that the exceedance is caused by this Project, appropriate
actions including lowering the working rate, or rescheduling of works should be
taken and additional mitigation measures should be implemented as necessary. The details
of Event and Action Plan will be discussed in Section 5.7.17.
5.7.11
Note that given the marine construction works for the marine
facilities and the marine viaduct are expected to start and end at different
time, the impact monitoring for the construction works for the marine
facilities and marine viaduct would be conducted separately following their
individual schedule. The corresponding monitoring stations are listed in Table 5.1 and Table 5.2 respectively.
Post Construction Phase Monitoring
5.7.12
Upon completion of marine construction works for the marine facilities
and marine viaduct, a post construction water quality monitoring should be
carried out separately for 4 weeks in the same manner as the impact monitoring
at the corresponding monitoring stations as shown in Table 5.1and Table 5.2.
Baseline Monitoring for the Maintenance Dredging during the
Operational Phase
5.7.13
Baseline monitoring shall be conducted for 4 weeks in the same manner
as the construction phase baseline monitoring at the four monitoring stations
as shown in Table 5.1.
Impact Monitoring for the Maintenance Dredging during the Operational
Phase
5.7.14
For the first maintenance dredging, monitoring should be carried out in
the same manner as the construction phase impact monitoring at the four
monitoring stations as shown inTable 5.1.
5.7.15
Project proponent will review the need for
conducting monitoring for maintenance dredging during the operational phase
upon the completion of monitoring for the first maintenance dredging and seek agreement
from EPD. Suspension of the monitoring
for maintenance dredging during the operational phase shall only be considered
upon demonstration of no adverse water quality impact due to the project
maintenance dredging.
Action and Limit Levels
5.7.16
The Action and Limit (AL) Levels for water quality are defined in Table 5.3 below.
Table 5.3 Action and Limit Levels for Marine Water Quality
|
Parameters |
Action Level |
Limit Level |
|
DO in
mg/L |
Surface and Middle 5 percentile of baseline data Bottom 5 percentile of baseline data |
Surface and Middle 4 mg/L or 1 percentile of baseline data Bottom 2 mg/L, or 1 percentile of baseline data |
|
SS in
mg/L |
Depth Average 95 percentile
of baseline data and 120% of upstream control station at the same tide of the same day |
Depth Average 99 percentile
of baseline data and 130% of upstream control station at the same tide of the
same day |
|
Turbidity in NTU |
Depth Average 95 percentile
of baseline data and 120% of upstream control station at the same tide of the same day |
Depth Average 99 percentile
of baseline data and 130% of upstream control station at the same tide of the
same day |
Note:
1. "Depth Average" is calculated by taking
the arithmetic means of reading
of all sampling depths.
2. For
DO, non-compliance of the water quality limits occurs when monitoring result is
lower than the limits.
3. For
turbidity and SS, non-compliance of the water quality limits occurs when
monitoring result is higher than the
limits.
4. All
the figures given in the table are used for reference only and the EPD may
amend the figures whenever it is
considered as necessary.
Event and Action Plan
5.7.17
Should non-compliance of the criteria occur, action in accordance with
the Action Plan in the Table 5.4 below shall be
carried out.
Table
5.4 Event
and Action Plan for Marine Water Quality
|
EVENT |
ACTION |
|||
|
ET |
IEC |
AAHK/PM |
Contractor |
|
|
1.
Action level
being exceeded by one sampling day |
1.
Inform IEC,
Contractor and AAHK/PM. 2.
Check monitoring
data, all plant, equipment and Contractor’s
working methods. 3.
Discuss mitigation
measures with IEC, Contractor and AAHK/PM. |
1. Discuss
with ET, Contractor and AAHK/PM on the
mitigation measures. 2. Review
proposals on mitigation measures submitted by Contractor and
advise AAHK/PM accordingly. 3. Review and advise ET and AAHK/PM on the
effectiveness of the implemented mitigation measures. |
1. Discuss with IEC, ET and Contractor on
the implemented mitigation measures. 2. Make agreement on the mitigation measures to be implemented. 3. Supervise the implementation of agreed remedial measures. |
1. Identify source(s) of impact. 2. Inform
AAHK/PM and confirm notification of the non-compliance in writing. 3. Rectify
unacceptable practice; 4. Check
all plant and equipment; 5. Consider changes of working
methods. 6. Discuss with ET, IEC and AAHK/PM
and propose mitigation measures to IEC and AAHK/PM. 7. Implement the agreed mitigation
measures. |
|
2.
Action level being
exceeded by two or more consecutive sampling days |
1.
Repeat in-situ measurement on next day of exceedance to confirm findings. 2.
Inform IEC,
Contractor and AAHK/PM. 3.
Check monitoring
data, all plant, equipment and Contractor's
working methods. 4.
Discuss mitigation
measures with IEC, Contractor and AAHK/PM. 5.
Ensure mitigation measures are implemented. |
1. Discuss
with ET, Contractor and AAHK/PM on the
mitigation measures. 2. Review
the proposed mitigation measures
submitted by Contractor and advise the AAHK/PM accordingly. 3. Review and advise ET and AAHK/PM on the
effectiveness of the implemented mitigation measures. |
1. Discuss with ET, IEC and Contractor on
the proposed mitigation measures. 2. Make agreement on the mitigation measures to be implemented. 3. Discuss with ET, IEC and Contractor on the
effectiveness of the implemented mitigation measures. |
1. Identify source(s) of impact. 2. Inform
AAHK/PM and confirm notification of the non-compliance in writing. 3. Rectify
unacceptable practice. 4. Check
all plant and equipment. 5. Consider changes of working
methods. 6. Discuss
with ET, IEC and AAHK/PM and submit proposal of mitigation measures to IEC and AAHK/PM within
3 working days of notification. 7. Implement the agreed
mitigation measures. |
|
3.
Limit level being
exceeded by one sampling day |
1.
Repeat measurement on next day of exceedance to confirm findings. 2.
Inform IEC,
Contractor and AAHK/PM. 3.
Rectify unacceptable
practice. 4.
Check monitoring
data, all plant, equipment and Contractor's
working methods. 5.
Discuss mitigation measures with
IEC, AAHK/PM and Contractor. 6.
Ensure the agreed mitigation
measures are implemented. |
1. Discuss
with ET, Contractor and AAHK/PM on the implemented
mitigation measures. 2. Review
the proposed mitigation measures
submitted by Contractor and advise the AAHK/PM accordingly. 3. Review and advise ET and AAHK/PM on the
effectiveness of the implemented mitigation measures. |
1. Discuss with IEC, ET and Contractor on the implemented mitigation
measures. 2. Request Contractor to critically review the working
methods. 3. Make agreement on the mitigation measures to be implemented. 4. Review and advise ET and AAHK/PM on the
effectiveness of the implemented mitigation measures. |
1. Identify source(s) of impact. 2. Inform
AAHK/PM and confirm notification of the non-compliance in writing. 3. Rectify
unacceptable practice. 4. Check
all plant and equipment. 5. Consider changes of working
methods. 6. Discuss
with ET, IEC and AAHK/PM and submit proposal of
additional mitigation measures to IEC
and AAHK/PM within 3 working days of notification. 7. Implement the agreed mitigation
measures. |
|
4.
Limit level being
exceeded by two or more consecutive sampling days |
1.
Inform IEC, Contractor, AAHK / PM; 2.
Identify reasons for
non-compliance and source(s) of impact; 3.
Check monitoring
data, all plant, equipment and Contractor's
working methods; 4.
Discuss mitigation
measures with IEC, AAHK / PM and Contractor; 5.
Ensure mitigation measures are implemented; 7.
Increase the monitoring frequency to daily until no exceedance of Limit level for two
consecutive days. |
1. Discuss
with ET, Contractor and AAHK/PM on the implemented
mitigation measures. 2. Review
the proposed mitigation measures
submitted by Contractor and advise AAHK/PM accordingly. 3. Review and advise ET and AAHK/PM on the
effectiveness of implemented mitigation measures. |
1. Discuss with IEC, ET and Contractor on the implemented mitigation
measures. 2. Request Contractor to critically review the working
methods. 3. Make agreement on the mitigation measures to be implemented. 4. Discuss with ET and IEC on the
effectiveness of the implemented mitigation measures. 5. Consider and instruct, if
necessary, the Contractor to slow down or to stop all or part of the
construction activities until no exceedance
of Limit level. |
1. Identify source(s) of impact. 2. Inform AAHK/PM and confirm notification
of non- compliance in writing. 3. Rectify
unacceptable practices. 4. Check
all plant and equipment. 5. Consider changes of working
method. 6. Discuss
with ET, IEC and AAHK/PM and submit proposal of additional
mitigation measures to IEC
and AAHK/PM within 3 working days of notification 7. Implement the agreed
mitigation measures; 8. As directed by the AAHK/PM, to slow down or to stop
all or part of the construction activities. |
Notes: ET – Environmental Team; EP – Environmental Permit; PM – Project
Manager; IEC – Independent Environmental Checker; AAHK – Airport Authority Hong Kong
5.8.1
Regular site inspection and audit at least
once per week should be conducted during the construction phase of the Project
to ensure the recommended mitigation measures are properly implemented.
6.1.1
Waste management during the construction phase will mainly be the
responsibility of the Contractor, who shall implement the mitigation measures
recommended in the EIA Report in order to minimise waste or resolve the issues
associated with the management of wastes.
The Contractor shall also ensure that all wastes produced during the
construction phase would be handled, stored and disposed of in accordance with
good waste management practices, relevant legislation and waste management
guidelines. Wastes generated from
the construction activities, such as the construction and demolition (C&D)
materials, shall be audited at least once a week to ensure that proper storage,
transportation and disposal practices are undertaken. Such audits would ensure that the wastes
generated would be properly disposed of.
6.1.2
No adverse environmental impacts would
arise with the implementation of good waste management practices during
operational phase of the Project.
Therefore, an audit programme for the operational phase will not be
required.
6.2.1
With the proper handling, storage and disposal of wastes arising from
the construction and operation of the Project as recommended in the EIA Report
and summarised in the Environmental Mitigation Implementation Schedule (EMIS)
in Appendix A of this EM&A Manual, adverse environmental impacts is not
anticipated.
6.3.1
This section outlines the requirements of the environmental audit
program. As part of the audit
program, it is necessary to verify the status of the mitigation measures and
evaluate their effectiveness.
6.3.2
During construction phase, weekly site inspections and audits shall be
carried out by the ET, to ensure that the recommended good site practices and
other mitigation measures listed in Appendix A are implemented
by the Contractor. The inspections
and audits shall look at all aspects of on-site waste management practices
including the waste generation, storage, recycling, transport and disposal. A Waste Management Plan (WMP), as part of
the Environmental Management Plan (EMP), shall be prepared by the Contractor and
submitted to the PM/PMR of AAHK for approval prior to the commencement of
construction work. Documents
including licenses, permits, disposal and recycling records shall be reviewed
and audited for the compliance with the legislation and contract
requirements.
6.3.3
During operational phase, no adverse waste impact would be anticipated
with the implementation of the good waste management practices. No monitoring or audit is required
during operational phase.
7.1.1
Potential ecological impacts arising from
the construction and operational phases of the Project were assessed in the EIA
Report. Mitigation and
precautionary measures have been recommended to further minimize potential
direct and indirect impacts to ecological resources. With the implementation of appropriate
marine and terrestrial ecological measures, no unacceptable marine and
terrestrial ecological impacts would be anticipated.
7.2.1
The recommended
mitigation measures for alleviating terrestrial and marine ecological impacts
arising from construction and operation works include the implementation of
good site practice, water quality mitigation measures and vessel speed
restriction, to minimize disturbance to terrestrial and marine resources near
works area, as listed in Appendix A.
7.3.1
There will be a water quality monitoring
programme during the construction phase of the Project to ensure that all the
recommended water quality measures and best management practices are properly
implemented. Details are discussed
in Section
5 of this Manual.
7.3.2
All vessels used in this Project will be
required to slow down to 10 knots around the Project’s marine works areas and
areas with potential high dolphin usage, including existing and proposed marine
parks, based upon a precautionary approach to avoid vessel collision with
Chinese White Dolphins.
8.1.1
Potential fisheries impacts
arising from the construction and operational phases of the Project were
identified and assessed in the EIA Report.
No adverse fisheries impacts from the Project
would be expected during the construction and operational phases of the
Project. Monitoring of fisheries
resources during these construction and operation activities is not considered
necessary. No fisheries-specific
mitigation measures are required.
8.2.1
No specific fisheries mitigation measures
and monitoring would be required during both construction and operational
phases. Mitigation measures
recommended in the water quality impact assessment will also minimise any
adverse impacts on fisheries.
8.3.1
As no unacceptable impacts have been predicted to occur during
construction and operation of the Project, monitoring of fisheries resources
during these construction and operation activities is not considered
necessary. Appropriate
notification, communications, site protection and marking would be adopted to
reduce navigation risks with fishing vessels. The details of the water quality
monitoring programme are presented in this EM&A
Manual (Section 5).
9.1.1
The EIA concluded that no cultural
heritage/marine archaeological impact is anticipated during construction phase
and operational phase of the Project, no mitigation measure is required. However, as a precautionary measure, Antiquities
and Monuments Office (AMO) should be informed immediately in case of any
antiquities or supposed antiquities under the Antiquities and Monuments
Ordinance (Cap 53) are discovered during the seabed disturbance works in the Project
site, so that appropriate mitigation measures, if needed, can be timely
formulated and implemented in agreement with AMO.
Construction Phase
9.2.1
No impact on declared monuments, proposed
monuments, graded historic sites/buildings/structures,
sites/buildings/structures in the new list of proposed grading items; and Government
historic sites and Site of Archaeological Interest has been identified. No mitigation measure is required. If there are any buildings / structures
both at grade level and underground which were built on or before 1969, the
applicant is required to alert AMO in an early stage or once identified.
9.2.2
As sonar contacts and magnetic anomalies
identified from geophysical survey are of no marine archaeological potential,
no marine archaeological impact is anticipated and therefore no mitigation measures
is required.
9.2.3
As a precautionary measure, AMO should be
informed immediately in case of any antiquities or supposed antiquities under
the Antiquities and Monuments Ordinance (Cap 53) are discovered during the
seabed disturbance works in the Project site.
Operational Phase
9.2.4
As no adverse cultural heritage/marine archaeological impact is
anticipated in operational phase of the Project, no mitigation measure is
required.
Construction Phase
9.3.1
As no archaeological impact and cultural
heritage impact during construction phase of the Project are expected,
monitoring and audit are considered not necessary.
9.3.2
As a precautionary measure, AMO should be informed immediately
in case of any antiquities or supposed antiquities under the Antiquities and
Monuments Ordinance (Cap 53) are discovered during the seabed disturbance works
in the Project site.
Operational
Phase
9.3.3
As no adverse cultural heritage/marine archaeological impact is
anticipated in operational phase of the Project, no monitoring and audit are
required.
10.1.1
Potential landscape and visual impacts
arising from the construction and operational phases of the Project were
assessed and landscape and visual mitigation measures were recommended in the
EIA Report. This Section defines
the EM&A requirements to ensure the recommended landscape and visual
mitigation measures are effectively implemented.
10.2.1
The
landscape and visual mitigation measures should be incorporated in the detailed
design of the Project. The
mitigation measures during construction and operational phases as recommended
in the EIA Report are presented in Appendix A.
10.2.2
Mitigation
measures to be implemented should be adopted from the start of construction and
be in place throughout the entire construction period. Mitigation measures to be implemented
during the operation should be integrated into the detailed design and built as
part of the construction works so that they are in place on commissioning of
the Project as far as practical.
10.3.1
Site audits
should be undertaken during the construction phase to check that the proposed
landscape and visual mitigation measures are properly implemented and
maintained as per their intended objectives. Site inspections
should be undertaken by the ET at least bi-weekly during the construction
period.
10.4.1
In the
event of non-compliance, the responsibilities of the relevant parties are
detailed in the Event/Action plan provided in Table 10.1.
Table 10.1 Event
and Action Plan for Landscape and Visual
|
EVENT |
ACTION |
|||
|
ET |
IEC |
AAHK/PM |
Contractor |
|
|
Non-conformity
on one occasion |
1. Inform IEC, AAHK/PM and Contractor. 2. Discuss remedial actions with IEC, AAHK/PM and
Contractor. 3. Monitor remedial actions until rectification has
been completed. |
1.
Check inspection report. 2.
Check
Contractor’s working method. 3.
Discuss with
ET, AAHK/PM and Contractor on possible remedial measures. 4.
Advise
AAHK/PM on effectiveness of proposed remedial measures. 5.
Check
implementation of remedial measures. |
1.
Confirm receipt of notification of the
non-conformity in writing. 2.
Review and agree on the
remedial measures proposed by the Contractor. 3.
Supervise remedial measures are
properly implemented. |
1.
Identify source and
investigate the non-conformity. 2.
Implement
remedial measures. 3.
Amend working
methods agreed with AAHK/PM as appropriate. 4. Rectify damage and undertake any necessary
replacement. |
|
Repeated
Non-conformity |
1. Identify
sources. 2. Inform IEC, AAHK/PM and Contractor. 3. Discuss inspection frequency. 4. Discuss remedial actions with IEC, AAHK/PM and Contractor. 5. Monitor remedial actions until rectification has been completed. 6. If non-conformity stops, cease additional monitoring. |
1.
Check inspection report. 2.
Check
Contractor’s working method. 3.
Discuss with
ET, AAHK/PM and Contractor on possible remedial measures. 4.
Advise
AAHK/PM on effectiveness of proposed remedial measures. |
1.
Notify the Contractor. 2.
In
consultation with ET and IEC, agree with the Contractor on the remedial
measures to be implemented. 3.
Supervise
implementation of remedial measures. |
1.
Identify source and investigate the
non-conformity. 2.
Implement
remedial measures. 3.
Amend working
methods agreed with AAHK/PM as appropriate. 4.
Rectify
damage and undertake any necessary replacement. 5.
Stop relevant
portion of works as determined by AAHK/PM until the non-conformity is abated. |
Notes: ET – Environmental
Team; EP – Environmental Permit; PM – Project Manager; IEC – Independent Environmental
Checker; AAHK – Airport
Authority Hong Kong
11.1.1
Site
inspection provides a direct means to initiate and enforce the specified
environmental protection and pollution control measures. These shall be undertaken regularly and routinely
to inspect the construction activities in order to ensure that appropriate
environmental protection and pollution control mitigation measures are properly
implemented. Site inspection is one
of the most effective tools used to enforce the environmental protection
requirements on the construction site.
A site inspection/audit checklist, to be used for undertaking site
inspection/audit, will be prepared by the ET and submitted to the IEC for
agreement, and to the AAHK / PM for approval.
11.1.2
The ET is
responsible for formulating the environmental site inspection programme,
deficiency and action reporting system, and for carrying out the site
inspections. The
proposal for rectification, if any, should be prepared by the Contractor and
submitted to the ET Leader and IEC.
11.1.3
Regular
site inspections shall be carried out and led by the AAHK/PM and attended by
the Contractor and ET at least once per week during the construction phase of
the Project. The IEC shall
undertake regular site audit at least once per month to assess the performance
of the Contractor(s). The areas of
inspection shall include, but are not be limited to, the environmental
situation, pollution control and mitigation measures within the site. It shall also review the environmental conditions
of locations outside the works area that is likely to be affected, directly or
indirectly, by the construction site activities of the Project. The ET Leader shall make
reference to the following information in conducting the inspection:
•
EIA Report
and EM&A Manual recommendations
on environmental protection and pollution control mitigation measures;
•
On-going results of the EM&A programme;
•
Works progress and programme;
•
Individual works methodology proposals (which shall
include proposals on associated pollution control measures);
•
Contract specifications on environmental protection;
•
Relevant environmental protection and pollution
control legislations; and
•
Previous site inspection results undertaken by
the ET and others.
11.1.4
The
Contractor shall keep to update the AAHK/PM and ET Leader on all relevant environmental
related information on the construction contract necessary for him to carry out
the site inspections. Site
inspection results and associated recommendations for improvements to the environmental
protection and pollution control efforts shall be recorded and followed up by
the Contractor and submitted to the ET and AAHK/PM in an agreed time-frame. The Contractor shall follow the
procedures and time-frame as stipulated
in the environmental site inspection, deficiency and action reporting
system formulated by the ET Leader, to report on any remedial measures
subsequent to the site inspections/audits.
Weekly site inspection should be carried out to check the implementation
status of the recommended environmental mitigation measures throughout
construction period.
11.1.5
The
AAHK/PM, ET and Contractor should conduct ad-hoc site inspections if
significant environmental problems are identified. The IEC shall also conduct random site
audits and inspections. Inspections
may also be required subsequent to receipt of an environmental complaint, or as
part of the investigation work, as specified in the Event and Action Plans for the
EM&A programme.
11.2.1
There are statutory
requirements on environmental protection and pollution control requirements
with which the construction activities must comply with.
11.2.2
In order to
ensure that the works are in compliance with the
statutory requirements, all method statements of works should be submitted by
the Contractor to the AAHK/PM for approval and to the ET Leader of vetting to
see whether sufficient environmental protection and pollution control measures
have been included.
11.2.3
The AAHK/PM
and ET Leader shall also review the progress and programme of the works to
check that relevant environmental laws have not been violated, and that the any
foreseeable potential for violating the laws can be prevented.
11.2.4
The
Contractor shall provide the update of the relevant documents to the ET Leader
so that the works checking can be carried out effectively. The document shall at least include the
updated Works Progress Reports, the updated Works Programme, method statements,
any application letters for different licence/permits under the environmental
protection laws, and copies all the valid licence/permit. The site diary and environmental records
shall also be available for inspection by the relevant parties.
11.2.5
After
reviewing the document, the ET Leader shall advise the IEC, AAHK/PM and the
Contractor of any non-compliance with the legislative requirements on
environmental protection and pollution control so that they can timely take
follow-up actions as appropriate.
If the ET Leader’s review concludes that the current status on
licence/permit application and any environmental protection and pollution
control preparation works may not cope with the works programme or follow-up
actions may still result in potential violation of environmental protection and
pollution control requirements, the ET should provide further advice to the
Contractor to take remedial action to resolve the problem.
11.2.6
Upon
receipt of the advice, the Contractor shall undertake immediate actions to
remedy the situation. The ET shall
follow up to ensure that appropriate action has been taken by the Contractor in
order to satisfy legal requirements.
11.3.1
Complaints
shall be referred to the ET Leader for carrying out complaint investigation
procedures. The following
procedures shall be undertaken upon receipt of the any environmental
complaints:
•
The ET Leader to log complaint and date of
receipt onto the complaint database and inform the IEC and AAHK/PM immediately;
•
The ET Leader to investigate the complaint to
determine its validity, and to assess whether the source of the problem is due
to construction works with the support of additional monitoring frequency and
stations, if necessary;
•
The ET Leader to identify remedial measures in
consultation with the IEC and AAHK/PM if a complaint is valid and due to
construction works of Project;
•
The Contractor to implement the remedial measures as
identified by ET Leader and agreed with IEC and AAHK/PM. Any additional monitoring frequency and
stations, where necessary, for checking the effectiveness of the remedial
measures should be proposed by ET Leader and agreed with IEC and AAHK/PM;
•
The ET and IEC to review the effectiveness of the
Contractor’s remedial measures and the updated situation;
•
The ET/Contractor to undertake monitoring and audit to
verify the situation if necessary, and oversee that circumstance leading to the
complaint do not recur;
•
If the complaint is a referral by the EPD, the Contractor
to prepare interim report on status of the complaint investigation and
follow-up actions stipulated above, including the details of the remedial
measures and monitoring identified or already taken, after endorsement by IEC
and AAHK/PM, for submission to EPD within the time frame assigned by EPD;
•
The ET undertake additional monitoring and audit to
verify the situation if necessary, and review that any valid reason for
complaint does not recur;
•
The ET report the investigation results and the
subsequent actions to the source of complaint for responding to complainant (If the source
of complaint is a referral
from EPD, the result should
be reported within the time frame assigned by the EPD); and
•
The ET to record the details of the
complaint, results of the investigation, subsequent actions taken to address
the complaint and updated situation including the effectiveness of the remedial measures, supported
by regular and additional monitoring
results in the monthly EM&A reports.
(If the source of complaint is a referral
from EPD, the result should be reported within the time frame
assigned by the EPD).
11.3.2
During the
complaint investigation works, the Contractor and AAHK/PM shall cooperate with
the ET Leader in providing all necessary information and assistance for
completion of the investigation. If
mitigation measures are identified in the investigation, the Contractor shall
promptly carry out the mitigation.
The ET and IEC shall ensure that the measures have been carried out by
the Contractor properly.
12.1.1
The types
of reports that the ET Leader should prepare and submit including Baseline
Monitoring Report, Monthly EM&A Reports and Final EM&A Review Report. In accordance with Annex 21 of the
EIAO-TM, a copy of the monthly and final review EM&A reports should be
submitted to the EPD. The exact
details of the frequency, distribution and time frame for submission should be
agreed with the IEC, AAHK/PM and EPD prior to commencement of works.
12.1.2
Reports can
be provided in an electronic medium upon agreeing the format with the AAHK / PM and
EPD. All monitoring data (baseline
and impact) should be submitted in electronic medium.
12.2.1
The ET
should prepare and submit a Baseline Monitoring Report at least 2 weeks before
commencement of construction works (including construction phase and operational
phase maintenance dredging). Copies
of the Baseline Monitoring Report should be submitted to the IEC, AAHK/PM and
EPD. The ET should liaise with the
relevant parties on the exact number of copies require.
12.2.2
The
Baseline Monitoring Report should include at least the following information:
(i)
Up
to half a page of executive summary;
(ii)
Brief
description of project
background information;
(iii)
Drawings showing locations of the baseline
monitoring stations;
(iv)
Monitoring results (in both hard and soft copies)
together with the following
information:
·
Monitoring methodology;
·
Name
of laboratory and types of equipment used and calibration details;
·
Parameters monitored;
·
Monitoring locations (and depth);
·
Monitoring date, time, frequency and duration; and
·
Quality assurance (QA) / quality control
(QC) results and detection limits.
(v)
Details of influencing factor,
including:
·
Major activities, if any, being
carried out on the Project site during the period;
·
Weather conditions during the period;
and
·
Other factors which might affect the
monitoring results.
(vi)
Determination of the Action and Limit levels
(AL levels) for each monitoring parameter and statistical analysis of the
baseline data;
(vii)
Revisions for inclusion in the
EM&A Manual; and
(viii)
Comments and conclusions.
12.3.1.1
The results
and finding of all EM&A works required in the Manual should be recorded in
the monthly EM&A reports prepared by the ET and endorsed by the IEC. The EM&A Report should be prepared
and submitted to EPD within 10 working days of the end of each reporting month
with the first report within the month after major construction works for
construction phase or maintenance dredging for operational phase commences. Copies of each monthly EM&A report
shall be submitted to the parties: Contractor, IEC, AAHK/PM and EPD. Before submission of the first monthly
EM&A Report, the ET shall liaise with the parties on the required number of
copies and format of the monthly reports in both hard copy and/or electronic
medium.
12.3.2
First Monthly EM&A Report
12.3.2.1
The first
monthly EM&A Report shall be included at least the following:
(i)
1-2
pages executive summary:
·
Breaches of Action and Limit levels;
·
Complaint log;
·
Notifications of any summons
and successful prosecutions;
·
Reporting changes; and
·
Future key issues.
(ii)
Basic project information:
·
Project organization including key personnel
contact names and telephone numbers;
·
Construction programme;
·
Management structure; and
·
Works undertaken during the reporting
month.
(iii)
Environmental status:
·
Advice on the status of statutory
environmental compliance, such as the status of compliance with the
environmental permit (EP) conditions under the EIAO, schedule and progress of
any submissions as required under the EP, application of Construction Noise
Permit (CNP), Waste Water Discharge License in accordance to Water Pollution
Control Ordinance (WPCO), C&D Waste Disposal, Chemical Waste Disposal
License, etc;
·
Works undertaken during the reporting
month with illustrations (e.g. location of works, etc); and
·
Drawings showing the Project area,
environmental sensitive receivers and locations of monitoring and control stations
(with co-ordinates of the monitoring and control locations).
(iv)
Summary of EM&A Requirement
including:
·
All monitoring parameters;
·
Environmental quality performance
limits (Action and Limit Levels);
·
Event and Action Plans;
·
Environmental mitigation measures, as
recommended in the EIA Report; and
·
Environmental requirements in contract
documents.
(v)
Implementation Status:
·
Advice on the implementation status of
environmental protection and pollution control/mitigation measures, as recommended
in the EIA Report.
(vi)
Monitoring results (in both hard and
electronic copies) together the following information:
·
Monitoring methodology;
·
Name of laboratory and types of
equipment used and calibration details;
·
Monitoring parameters;
·
Monitoring locations (and depth);
·
Monitoring date, time, frequency and
duration;
·
Weather conditions during the period;
·
Any other factors which might affect
the monitoring results; and
·
QA/QC results and detection limits.
(vii)
Report on the non-compliances,
complaints, notifications of summons and status of prosecutions:
·
Record of all non-compliance
(exceedances) of the environmental quality performance limits (Action and Limit
levels);
·
Record of all complaints received
(written or verbal) for each media, including locations and nature of
complaints investigation, liaison and consultation undertaken, actions and
follow-up procedures taken, results and summary;
·
Record of all notification of summons
and successful prosecutions for breaches of current environmental protection /
pollution control legislation, including locations and nature of the breaches,
investigation, follow-up actions taken, results and summary;
·
Review of the reasons for and the
implications of non-compliances, complaints, summons and prosecutions including
review of pollution sources and working procedures; and
·
Description of the actions taken in
the event of non-compliance and deficiency reporting and any follow-up
procedures related to earlier non-compliance.
(viii)
Others
·
An account of the future key issues as
reviewed from the works programme and work method statements;
·
Advice on the solid and liquid waste
management status;
·
Record of any project changes from the
originally proposed as described in the EIA Report (e.g. construction methods,
mitigation proposals, design changes, etc.); and
·
Comments (for example, effectiveness
and efficiency of the mitigation measures), recommendations (for examples, any
improvement in the EM&A programme) and conclusions.
12.3.3
Subsequent Monthly EM&A Reports
12.3.3.1
Subsequent
monthly EM&A Reports during the construction phase shall include the
following information:
(i)
1-2 pages executive summary:
·
Breaches of Action and Limit levels;
·
Complaint log;
·
Notifications of any summons
and successful prosecutions;
·
Reporting changes; and
·
Future key issues.
(ii)
Basic project information:
·
Project
organization including key personnel contact names and telephone numbers;
·
Construction
programme;
·
Management
structure;
·
Works undertaken
during the reporting month; and
·
Any updates as
needed to the scope of works and construction methodologies.
(iii)
Environmental status:
·
Advice on the
status of statutory environmental compliance, such as the status of compliance
with the environmental permit (EP) conditions under the EIAO, schedule and
progress of any submissions as required under the EP, application of
Construction Noise Permit (CNP), Waste Water Discharge License in accordance to
Water Pollution Control Ordinance (WPCO), C&D Waste Disposal, Chemical
Waste Disposal License, etc;
·
Works undertaken
during the reporting month with illustrations (e.g. location of works, etc);
and
·
Drawings showing
the Project area, environmental sensitive receivers and the locations of the
monitoring and control stations (with co-ordinates of the monitoring and
control locations).
(iv)
Summary of EM&A Requirement:
·
All monitoring
parameters;
·
Environmental
quality performance limits (Action and Limit Levels);
·
Event and Action
Plan;
·
Environmental
mitigation measures as recommended in the EIA Report; and
·
Environmental
requirements in contract documents.
(v)
Implementation Status:
·
Advice on the
implementation status of environmental protection and pollution
control/mitigation measures as recommended in the EIA Report, summarised in the
updated implementation schedule.
(vi)
Monitoring results (in both hard and
electronic copies) together the following information:
·
Monitoring
methodology;
·
Name of
laboratory and types of equipment used and calibration details;
·
Monitoring
parameters;
·
Monitoring
locations (and depth);
·
Monitoring date,
time, frequency and duration;
·
Weather condition
during the period;
·
Any other factor
which might affect the monitoring results; and
·
QA/QC results and
detection limits.
(vii)
Report on the non-compliances,
complaints, notifications of summons and status of prosecutions:
·
Record of all
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels); and
·
Record of all
complaints received (written or verbal) for each media, including locations and
nature of complaints investigation, liaison and consultation undertaken,
actions and follow-up procedures taken, results and summary;
·
Record of all
notification of summons and successful prosecutions for breaches of current
environmental protection / pollution control legislation, including locations
and nature of the breaches, investigation, follow-up actions taken, results and
summary;
·
Review of the
reasons for and implications of non-compliances, complaints, summons and
prosecutions including review of pollution sources and working procedures; and
·
Description of
the actions taken in the event of non-compliance and deficiency reporting and
any follow-up procedures related to earlier non-compliance.
(viii)
Summary of Site Audit/ Inspection
·
Records the dates
and time of the site audit/ inspection, and any environmental problems
observed;
·
Record the
details of personnel involved; and
·
Descriptions of
the mitigation measures/ action plans taken if environmental problems are
identified during the audit/ inspection.
(ix)
Others
·
An account of the
future key issues as reviewed from the works programme and work method
statements;
·
Advice on the
solid and liquid waste management status;
·
Record of any
project changes from originally proposed as described in the EIA (e.g.
construction methods, mitigation proposals, design changes, etc)
·
Comments (for
example, effectiveness and efficiency of the mitigation measures),
recommendations (for examples, any improvement in the EM&A programme) and
conclusions.
·
Ad-hoc audits
carried out.
(x)
Appendices
·
Action and Limit
levels;
·
Graphical plots
of trends of the monitoring parameters at key stations over the past four
reporting periods for representative monitoring stations annotated against the
following:
(a)
Major
activities being carried
out on site during the period;
(b)
Weather conditions during the period; and
(c)
Any
other factors that might affect
the monitoring results.
·
Monitoring
schedule for the present and next reporting period;
·
Cumulative
statistics on complaints, notifications of summons and successful prosecutions;
and
·
Outstanding
issues and deficiencies.
12.4.1
The
EM&A programme shall be terminated upon the completion of the construction
activities that have the potential to cause significant environmental impacts.
12.4.2
The
proposed termination shall only be implemented after the proposal has been
endorsed by the IEC and AAHK/PM followed by the approval from the Director of
Environmental Protection.
12.4.3
The ET
shall prepare and submit the Final EM&A Report within 14 working days after
approval of termination of EM&A programme has been granted. The Final EM&A Review Report shall
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)
The basic project information including
a synopsis of the project
organization, contacts of key management, 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 EIA Report;
·
Environmental impact hypotheses tested;
·
Environmental quality performance limits
(Action and Limit levels);
·
All
monitoring parameters; and
·
Event
and Action Plans.
(v)
A summary of the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the EIA Report, summarised in the updated implementation schedule;
(vi)
A summary of the site audit/inspection
carried out, including a summary of observations and follow up actions taken;
(vii)
Graphical plots and the statistical
analysis of the trends of monitoring parameters over the course of the Project,
including:
·
The
major activities being carried out on site during the reporting period;
·
Weather conditions during the reporting period;
and
·
Any
other factors which might affect
the monitoring results;
(viii)
A summary of non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);
(ix)
A review of the reasons for and
implications of non-compliances including review of pollution sources and
working procedures as appropriate;
(x)
A description of the actions
taken in the event of non-compliance;
(xi)
A summary record of all complaints
received (written or verbal), liaison and consultation undertaken, actions and
follow-up actions taken and results;
(xii)
A summary record of the notifications
of summons and successful prosecutions for breaches of the current
environmental protection / pollution control legislation, locations and nature
of the breaches, follow-up investigation taken and results;
(xiii)
A review of the validity of EIA
predictions and identification of shortcomings in EIA recommendations;
(xiv)
Comments (for example, a review of the
effectiveness and efficiency of the mitigation
measures, the performance of the environmental management system, and
the overall EM&A programme); and
(xv)
Recommendations and conclusions (for
example, a review of success of the overall EM&A programme to
cost-effectively identify deterioration and to initiate prompt effective
mitigatory action when necessary).
12.5.1
No
site-based documents (such as monitoring field records, laboratory analysis
records, site inspection forms etc.) are required to be included in the monthly
EM&A reports. However, any such
documents should be properly maintained by the ET and be ready for inspection
upon request. All relevant
information should be recorded in electronic format, and the software copy must
be available upon request. All
document and data should be kept for at least one year after completion of the
construction contract.
12.6.1
With
reference to the Event and Action Plans, when the environmental quality
performance limits are exceeded and if they are proven to be valid, the ET
should immediately notify the IEC, AAHK/PM and EPD, as appropriate. The notification should be followed up
with advice to the IEC, AAHK/PM and EPD on the results of the investigation,
proposed actions and success of the actions taken, with any necessary follow-up
proposals. A sample template for
the interim notification is presented in Appendix E.