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Kowloon Canton Railway Corporation |
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KSL GSA 5100 Environmental Impact Assessment & Associated Services |
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Environmental Monitoring and Audit Manual |
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Kowloon Canton Railway Corporation
KSL GSA 5100 Environmental Impact Assessment & Associated Services
Environmental Monitoring and Audit Manual
Ove
Arup & Partners Hong Kong Ltd
Level 5, Festival Walk, 80 Tat Chee
Avenue, Kowloon Tong, Kowloon, Hong Kong
Tel
+852 2528 3031 Fax +852 2268
CONTENTS
1.3 Environmental Mitigation
Implementation Schedule
3.1.2 Independent Environmental Checker
3.1.3 Contractor’s Environmental Team
3.1.4 Engineer’s Representative
4.1 Environmental Management Plan
4.2 Construction Method Statement
5.1.3 Laboratory Measurement/Analysis
5.1.7 Event and Action Plan For Air Quality
5.2 Airborne Construction Noise
5.2.6 Continuous Noise Monitoring
5.2.7 Event and Action Plan for Construction Noise
5.3 Construction Groundborne Noise
5.4 Operational Groundborne Noise
5.5 Operational Fixed Source Noise
5.6.1 Baseline Monitoring Parameters
6.2 Compliance with Legal and
Contractual Requirement
6.4 Environmental Mitigation Measures
6.4.1 Dust Mitigation Measures
6.4.2 Construction Noise Mitigation Measures
6.4.3 Operational Air-borne Noise Mitigation
Measures
6.4.4 Operational Ground-borne Noise Mitigation
Measures
7.2 Baseline Monitoring Report
7.3.1 First Monthly EM&A Report
7.3.3 Final EM&A Review Reports
7.5 Interim Notification of
Environmental Quality Limit Exceedances
LIST OF FIGURES |
|
General
Alignment |
|
Dust
monitoring locations |
|
Dust
monitoring locations |
|
Dust
monitoring locations |
|
Airborne
construction noise monitoring locations |
|
Airborne
construction noise monitoring locations |
|
Airborne
construction noise monitoring locations |
|
Continuous
construction noise monitoring locations |
|
Location
of hot spots |
LIST OF APPENDICES |
|
Construction
Programme |
|
Environmental
Mitigation Implementation Schedule (Figure A14-1, A14-2, A14-3a, A14-3b, A14-4) |
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Project
Organisation |
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Sample
Data Sheet |
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Flow
chart of complaint response procedures |
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Complaint
Proforma |
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Sample
Template for Interim Notifications of Environmental Quality Limits
Exceedances |
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ABBREVIATION
AMO
|
Antiquities
and Monuments Office |
ANL |
Acceptable
Noise Level |
ASR |
Air
Sensitive Receiver |
BNL |
Basic
Noise Level |
CAR |
Canton
Road |
CED |
Civil
Engineering Department |
CNP |
Construction
Noise Permit |
C&D |
Construction
& Demolition |
CRPB |
Canton
Road Plant Building |
ECS |
Environmental
Control System |
EIA |
Environmental
Impact Assessment |
EIAO |
Environmental
Impact Assessment Ordinance |
EM |
Environmental Manager |
EMP |
Environmental
Management Plan |
EMIS |
Environmental Mitigation Implementation Schedule |
EM&A |
Environmental
Monitoring and Audit |
EP |
Environmental
Permit |
EPD |
Environmental
Protection Department |
ER |
Engineer’s
Representative |
ET |
Environmental
Team |
ETS |
East
Tsim Sha Tsui |
ETWBTC |
Environment,
Transport and Works Bureau Technical Circular |
FMPHQ |
Former
Marine Police Headquarters |
HKCC |
Hong
Kong Cultural Centre |
HKPSG |
Hong
Kong Planning Standards and Guidelines |
HKSM |
Hong
Kong Space Museum |
HOKLAS |
|
HRVB |
Haiphong Road Ventilation Building |
HVS |
High Volume Sampler |
IEC |
Independent Environmental Checker |
KCRC |
Kowloon
Canton Railway Corporation |
KSL |
Kowloon
Southern Link |
LCSD |
Leisure
and Cultural Services Department |
NAC |
Nam
Cheong Station |
NCO |
Noise
Control Ordinance |
NSRs |
Noise
Sensitive Receivers |
OFSB |
Old
Fire Station Buildings |
PCW |
Prescribed
Construction Work |
PME |
Powered
Mechanical Equipment |
PPE |
Personal
Protection Equipment |
RAP |
Remediation
Assessment Plan |
SLM |
Sound
Level Meter |
SWL |
Sound
Power Level |
TBM |
|
TMs |
|
TM-CW |
Technical
Memorandum on Noise from Construction Work other than Percussive Piling |
TM-DA |
Technical
Memorandum on Noise from Construction Work in Designated Areas |
TM-Water |
Technical Memorandum on
Standards for Effluents Discharged into Drainage and Sewerage Systems, Inland
and Coastal Waters |
TSP |
Total
Suspended Particulates |
TST |
Tsim
Sha Tsui |
WKN |
West
Kowloon Station |
WMP |
Waste
Management Plan |
WPCO |
Water
Pollution Control Ordinance |
WR |
West
Rail |
YMT |
Yau
Ma Tei |
This page left blank intentionally
The proposed Kowloon
Southern Link (KSL) project is classified as a designated project under
Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO). In accordance with the requirements of
Section 5(1) of the EIAO, a project profile (No. PP-160/2002) was submitted to
Environmental Protection Department (EPD) for the application of an EIA Study
Brief on 21 January 2002. Pursuant to
Section 5(7)(a) of the EIAO, EPD issued to the Kowloon Canton Railway
Corporation (KCRC) a study brief (ref: EIA Study Brief No: ESB-097/2002 dated
March 2002) to carry out an EIA study.
The proposed 3.7km
underground railway will connect the new KCRC East TST Station to the current
West Rail (WR) Nam Cheong Station (NAC), with its alignment running under
Salisbury Road, Canton Road and West Kowloon Reclamation area (Figure
1-1). West Kowloon Station (WKN) will
be located at West Kowloon on the west side of Canton Road between Austin Road
and Jordan Road. Neither reclamation
nor dredging is anticipated for KSL.
There are two ventilation / plant buildings for the KSL as follows:
· YMT ventilation building located at Hoi Ting Road, and between YMT Interchange and Cherry Street; and
· Canton Road Plant Building (CRPB) at the junction of Kowloon Park Drive and Canton Road.
The construction work will commence in
early 2005 and is scheduled to be completed by late 2007. Testing and commissioning of the railway
system will then be conducted for target completion for operation in late 2008
/ early 2009. All construction works will
be undertaken during normal working hours from 7:00 am to 7:00 pm, except for
the TBM launching shaft to the south of WKN, which would operate for 24 hours. A
tentative construction programme is given in Appendix 1-1.
1.3
Environmental
Mitigation Implementation Schedule
Detailed EIA
assessments have been discussed and presented in the EIA report. All necessary mitigation measures have also
been identified and recommended. The
Environmental Mitigation Implementation Schedule (EMIS) is given in Appendix
1-2. It specifies the extent,
locations, time frame and responsibilities for the implementation of the
environmental mitigation measures identified.
This
Manual outlines the monitoring and audit programme to be undertaken during the
construction of the KSL. It aims to
provide systematic procedures for monitoring, auditing and minimising of the
environmental impacts associated with the construction activities. The purposes of this EM&A manual are to:
· guide the setup of an EM&A programme;
· ensure compliance with the recommendations as stated in EIA; and
· identify any need for additional mitigation measures or remedial action.
Relevant
environmental regulations, Guidelines for Development Projects in Hong Kong,
Environmental Monitoring and Audit, and recommendations in the KSL EIA report
have been used to set up this Manual.
This Manual contains the following:
· Responsibilities of the Contractor, the Environmental Manager (EM), Engineer’s Representative (ER), Independent Environmental Checker (IEC) and Environmental Team (ET) with respect to the environmental monitoring and audit requirements during construction;
· Information on project organization and programming of construction activities for the project;
· Requirements with respect to the construction schedule and the necessary environmental monitoring and audit programme to track the varying environmental impacts;
· Details of the monitoring methodologies, including all field works, laboratory analytical procedures, quality assurance and quality control;
· Definition of Action and Limit levels;
· Establishment of Event and Action plans;
· Requirements for reviewing pollution sources and working procedures in the event of non-compliance of the environmental criteria and complaints;
· Requirements for reviewing the effectiveness of the recommended mitigation measures;
· Requirements of the Environmental Management Plan (EMP) and other deliverables for the Contractors; and
· Requirements of presentation of EM&A data and appropriate reporting procedures.
For the
purpose of this manual, the ER shall refer to the Engineer as defined in the
Contract, in cases where the Engineer's powers have been delegated to the ER,
in accordance with the Contract. The ET
leader, who shall be responsible for and in charge of the ET, shall refer to
the person delegated the role of executing the environmental monitoring and
audit requirements.
An organisation
consisting of EM, IEC, Contractor’s ET, ER and Contractor shall be formed to
take the responsibilities of the environmental protection matters. The project organisation and lines of
communication with respect to environmental protection works are shown in Appendix
3-1. The responsibilities of
respective parties are detailed in the following:
The EM shall be
employed by KCRC and shall be responsible for:
· Supervise the EM&A Programme, its members and the timely production and quality of outputs;
· Provide guidance to KCRC personnel in their dealings with the Contractor’s ET;
· Ensure achieving the agreed objectives and deadlines as set out in this Manual; and
· Ensure the quality of deliverables.
3.1.2
Independent
Environmental Checker
An IEC shall be
appointed by KCRC to audit and verify the overall environmental performance of
KSL and to assess the effectiveness of the ET in their duties. The main duties of IEC are to:
· review and comment on Contractor’s environmental submissions as per the Environmental Permit;
· arrange and conduct monthly site inspections at the different works area along KSL alignment;
· review the programme of work to anticipate any potential environmental impacts that may arise;
· ensure the impact monitoring is conducted at the correct locations at the correct frequency as identified in this Manual;
· 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; and
· report the findings of site inspections and other environmental performance reviews to EM and EPD.
3.1.3
Contractor’s
Environmental Team
The duties of the
Contractor’s ET are to:
· set up all the required environmental monitoring stations;
· monitor various environmental parameters for both baseline and impact monitoring as required by this Manual;
· investigate and audit the Contractor’s equipment and work methodologies with respect to pollution control and environmental mitigation, and to anticipate environmental issues that may require mitigation before the problem arises;
· audit and prepare audit reports on the environmental monitoring data and the site environmental conditions;
· report the environmental monitoring and audit results to the Contractor and the ER;
· undertake regular on-site audits/inspections and report to the Contractor and the ER of any potential non-compliance; and
· follow up and close out of the non-compliance actions.
3.1.4
Engineer’s
Representative
The ER shall:
· monitor the Contractor’s compliance with Contract Specifications, including the effective implementation and operation of the environmental mitigation measures;
· instruct the Contractor to follow the agreed protocols or those in the Contract Specifications in the event of exceedances or complaints; and
· comply with the agreed Event Contingency Plan in the event of any exceedance.
The Contractor shall:
· employ an ET to undertake monitoring, auditing, laboratory analysis and reporting of EM&A;
· work within the scopes of the construction Contract and other tender conditions with respect to environmental requirements;
· cooperate with the environmental performance review undertaken by KCRC and the ER and undertake any corrective actions as instructed by the ER;
· operate and strictly adhere to the guidelines of the EMP developed by their project staff; and
· procure, implement and maintain a Continuous Noise Monitoring System (CNMS) throughout the construction period.
The Contractor shall
prepare the EMP, Construction Method Statement, Waste Management Plan (WMP) and
obtain approval from ER and EPD to encompass the recommended environmental
protection/mitigation measures with respect to the
latest construction methodology and programme.
4.1
Environmental
Management Plan
A systematic EMP shall
be set up by the Contractor to ensure effective implementation of the
mitigation measures, monitoring and remedial requirements presented in the EIA,
EM&A and EMIS. KCRC and the IEC
will audit the implementation status against the EMP and advise the necessary
remedial actions required. These
remedial actions shall be enforced by the ER through contractual means.
The EMP will require
the Contractor (together with its sub-contractors) to define in details how to
implement the recommended mitigation measures in order to achieve the
environmental performance defined in the Hong Kong environmental legislation
and the EIA documentation.
The review of on-site
environmental performance shall be undertaken by KCRC and IEC through a
systematic checklist and audit once the construction commences. The environmental performance review
programme comprises a regular assessment on the effectiveness of the EMP.
4.2
Construction
Method Statement
In case the Contractor
would like to adopt a different construction method or implementation schedule,
it is required to submit details of methodology and equipment to the ER for
approval before the commencement of the work.
Any changes in construction method shall be reflected in a revised EMP
or the Contractor will be required to demonstrate the manner in which the
existing EMP should accommodate the proposed changes. The Contractor may need to apply for a Further Environmental
Permit (FEP) from EPD before commencement of any construction activities.
The Contractor shall
prepare a WMP for the construction of the project and submit to the ER and EPD
for approval. Where waste generation is unavoidable, the opportunities for
recycling or reusing should be maximised. If wastes cannot be recycled,
recommendations for appropriate disposal routes should be provided in the
WMP. A method statement for stockpiling
and transportation of the excavated materials and other construction wastes
should also be included in the WMP and approved before the commencement of
construction. All mitigation measures
arising from the approved WMP shall be fully implemented.
For the purpose of
enhancing the management of Construction and Demolition (C&D) materials
including rock, and minimising its generation at source, construction would be
undertaken in accordance with the Environment, Transport and Works Bureau
Technical Circular (Works) No. 33/2002 - Management of Construction and
Demolition Material Including Rock, or its latest versions. The management
measures stipulated in the Technical Circular should be incorporated into the
WMP.
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 taken to rectify the situation.
1-hour and 24-hour TSP
levels shall be measured to indicate the impacts of construction dust. The TSP levels shall be measured using the
standard high volume sampling method as set out in the Title 40 of the Code of
Federal Regulations, USA, Chapter 1 (Part 50), Appendix B. Upon approval by the ER, 1-hour TSP levels
can be measured by direct reading methods which are capable of producing
comparable results as that by the high volume sampling method, to indicate
short event impacts.
All relevant data
including temperature, pressure, weather conditions, elapsed-time meter reading
for the start and stop of the sampler, identification and weight of the filter
paper, and other special phenomena and work progress of the concerned site etc.
shall be recorded down in details. A
sample data sheet is shown in Appendix 5-1.
High volume sampler
(HVS) complying with the following specifications shall be used for carrying
out the 1-hr and 24-hr TSP monitoring:
· 0.6-1.7 m3/min (20-60 SCFM) adjustable flow range;
· equipped with a timing/control device with +/- 5 minutes accuracy for 24 hours operation;
· installed with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
· capable of providing a minimum exposed area of 406 cm2 (63 in2);
· flow control accuracy: +/- 2.5% deviation over 24-hr sampling period;
· equipped with a shelter to protect the filter and sampler;
· incorporated with an electronic mass flow rate controller or other equivalent devices;
· equipped with a flow recorder for continuous monitoring;
· provided with a peaked roof inlet;
· incorporated with a manometer;
· able to hold and seal the filter paper to the sampler housing at horizontal position;
· easy to change the filter; and
· capable of operating continuously for 24-hr period.
The ET Leader shall be
responsible for provision, installation and maintenance of the monitoring
equipment. He shall ensure that sufficient
number of HVSs with an appropriate calibration kit are available for carrying
out the baseline monitoring, regular impact monitoring and ad hoc
monitoring. The HVSs shall be equipped
with an electronic mass flow controller and be calibrated against a traceable
standard at regular intervals. All the
equipment, calibration kit, filter papers, etc. shall be clearly labelled. The equipment installation location shall be
proposed by the ET Leader and agreed with the ER and EPD in consultation with
the IEC.
Initial calibration of
dust monitoring equipment shall be conducted upon installation and thereafter
at bi-monthly intervals. The transfer
standard shall be traceable to the internationally recognised primary standard
and be calibrated annually. The
calibration data shall be properly documented for future reference. All the data shall be converted into
standard temperature and pressure condition.
The flow-rate of the
sampler before and after the sampling exercise with the filter in position
shall be verified to be constant and be recorded down in the data sheet as
mentioned in S5.1.1.
If the ET Leader
proposes to use a direct reading dust meter to measure 1-hr TSP levels, he
shall submit sufficient information to the ER to prove that the instrument is
capable of achieving a comparable result as that of the HVS and may be used for
the 1-hr sampling. The instrument
should also be calibrated regularly, and the 1-hr sampling shall be determined
periodically by HVS to check the validity and accuracy of the results measured
by direct reading method.
Wind data monitoring
equipment shall also be provided and set up at conspicuous locations for
logging wind speed and wind direction near to the dust monitoring
locations. The equipment installation
location shall be proposed by the ET Leader and agreed with the ER. For installation and operation of wind data
monitoring equipment, the following points shall be observed:
· the wind sensors shall be installed on masts 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 and downloaded for processing 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.
In exceptional
situations, the ET Leader may propose alternative methods to obtain
representative wind data upon approval from the ER, EPD and IEC.
5.1.3
Laboratory
Measurement/Analysis
A clean laboratory
with constant temperature and humidity control, and equipped with necessary
measuring and conditioning instruments, to handle the dust samples, shall be
employed for sample analysis, and equipment calibration and maintenance. The laboratory should be HOKLAS accredited.
If a site laboratory
is set up or a non-HOKLAS accredited laboratory is hired for carrying out the
laboratory analysis, the laboratory equipment shall be approved by the ER and
the measurement procedures shall be witnessed by the ER. The ET Leader shall provide the ER with one
copy of the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50),
Appendix B for his reference.
Filter paper of size
8"x10" shall be labelled before sampling. It shall be clean with no pin holes, and shall be conditioned in
a humidity controlled chamber for over 24-hr and be pre-weighed before use for
the sampling.
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
a readout down to 0.1 mg. The balance
shall be regularly calibrated against a traceable standard.
All the collected
samples shall be kept in a good condition for 6 months before disposal.
The proposed dust
monitoring locations are shown in Table 5-1 and illustrated in Figures 5-1-1
to 5-1-3. The status and locations
of dust sensitive receivers may change after issuing this Manual. In such cases, the ET Leader shall propose
updated monitoring locations and seek approval from ER, IEC and EPD.
Table 5-1: Proposed dust monitoring locations
ID |
Description |
AM1 |
Hong
Kong Cultural Centre |
AM2 |
No.4-8
Canton Road |
AM3 |
Lai
Chack Middle School |
AM4 |
Man
King Building |
AM5 |
Charming
Garden |
AM6 |
Olympic
City Phase 3 [1] |
Note:
[1] Dust monitoring will be undertaken at
this location only when the development is occupied.
When alternative monitoring
locations are proposed, the following criteria, as far as practicable, shall be
followed:
· at the site boundary or such locations close to the major dust emission source;
· close to the sensitive receptors;
· proper position/sitting and orientation of the monitoring equipment; and
· take into account the prevailing meteorological conditions.
When positioning the
samplers, the following points shall be noted:
· a horizontal platform with appropriate support to secure the samplers against gusty wind should be provided;
· no two samplers should be placed less than 2 meter apart;
· the distance between the sampler and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the sampler;
· a minimum of 2 metres separation from walls, parapets and penthouses is required for rooftop samplers;
· a minimum of 2 metres separation from any supporting structure measured horizontally is required;
· no furnace or incinerator flue is nearby;
· airflow around the sampler is unrestricted;
· the sampler is more than 20 metres from the drip-line;
· any wire fence and gate, to protect the sampler, should not cause any obstruction during monitoring;
· permission must be obtained to set up the samplers and to obtain access to the monitoring stations; and
· a secured supply of electricity is needed to operate the samplers.
The ET shall carry out
baseline monitoring at all designated monitoring locations for at least 14
consecutive days prior to the commencement of the construction works to obtain
daily 24-hr TSP samples. 1-hour
sampling shall also be done at least 3 times per day while the highest dust
impact is expected. During the baseline
monitoring, there should not be any construction or dust generating activities
in the vicinity of the monitoring stations.
A schedule on the baseline monitoring shall be submitted to the ER and
IEC for approval before the monitoring starts.
In case the baseline
monitoring cannot be carried out at the designated monitoring locations during
the baseline monitoring period, the ET shall carry out the monitoring at
alternative locations which can effectively represent the baseline conditions
at the impact monitoring locations. The alternative baseline monitoring
locations shall be approved prior by the ER and agreed with IEC.
In exceptional case,
when insufficient baseline monitoring data or questionable results are
obtained, the ET Leader shall liaise with IEC and EPD to agree on an
appropriate set of data to be used as a baseline reference and submit to ER for
approval.
Ambient conditions may
vary seasonally and shall be reviewed at every three months. If the ET Leader considers that the ambient
conditions have been changed and a repeat of the baseline monitoring is
required for obtaining the updated baseline levels, the monitoring shall be
conducted at times when the Contractor's activities are not generating dust, at
least in the proximity of the monitoring stations. Should change in ambient conditions be determined, the baseline
levels and, in turn, the air quality criteria, should be revised. The revised baseline levels and air quality
criteria should be agreed with EPD and IEC.
The ET shall carry out
impact monitoring during the course of the construction. For regular impact monitoring, the sampling
frequency of at least once in every six-days, shall be strictly complied with
at all monitoring stations for 24-hr TSP monitoring. For 1-hr TSP monitoring, the sampling frequency of at least three
times in every six-days shall be undertaken when the highest dust impact
occurs. The specific time to start and
stop the 24-hr TSP monitoring shall be clearly defined for each location and be
strictly followed by the operator.
In case of
non-compliance with the air quality criteria, more frequent monitoring
exercise, as specified in the Action Plan in S5.1.7, shall be conducted
within 24 hours after the result is obtained.
This additional monitoring shall be continued until the excessive dust
emission or the deterioration in air quality is rectified.
5.1.7
Event and
Action Plan For Air Quality
The baseline
monitoring results form the basis for determining the air quality criteria,
namely Action and Limit levels, for the impact monitoring. The ET Leader shall compare the impact
monitoring results with air quality criteria set up for 24-hour and 1-hour TSP
levels. Table 5-2 shows the Action and
Limit levels. Should non-compliance of
the air quality criteria occurs, the ET, the ER and the Contractor shall
undertake the relevant actions in accordance with the Event and Action Plan in
Table 5-3.
Table 5-2: Action and limit levels for air quality
Parameters |
Action |
Limit |
24-hour
TSP Level in µg/m³ |
For
baseline level 200 µg/m³, Action
level = (130% of baseline level + Limit level)/2 For
baseline level > 200 µg/m³, Action level = Limit level |
260 |
1-hour
TSP Level in µg/m³ |
For
baseline level 384 µg/m³, Action
level = (130% of baseline level + Limit level)/2 For
baseline level > 384 µg/m³, Action level = Limit level |
500 |
Table
5-3: Event/Action plan for air quality
Event |
Action |
|||
ET Leader |
IEC |
ER |
Contractor |
|
Action Level |
|
|
|
|
1.
Exceedance for one sample |
1.
Identify source, investigate the causes of exceedance and
propose remedial measures. 2.
Inform IEC and ER. 3.
Repeat measurement to confirm finding. 4.
Increase monitoring frequency to daily. |
1.
Check monitoring data submitted by ET. 2.
Check Contractor’s working method. |
1.
Notify Contractor. |
1.
Rectify any unacceptable practice. 2.
Amend working methods if appropriate. |
2. Exceedance for
two or more consecutive samples |
1. Identify the
source. 2. Inform IEC and
ER. 3. Advise ER on
the effectiveness of the proposed remedial measures 4. Repeat
measurements to confirm findings. 5. Increase
monitoring frequency to daily. 6. Discuss with
IEC and the Contractor on remedial actions required. 7. If exceedance
continues, arrange meeting with IEC and ER. 8. If exceedance
stops, cease additional monitoring. |
1. Check
monitoring data submitted by ET. 2. Check the
Contractor’s working method. 3. Discuss with ET
Leader and the Contractor on possible remedial measures. 4. Advise ER on
the effectiveness of the proposed remedial measures. 5. Supervise
implementation of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Ensure remedial
measures properly implemented. |
1. Submit
proposals for remedial actions to IEC within 3 working days of notification. 2. Implement the
agreed proposals. 3. Amend proposal
if appropriate. |
Limit Level |
|
|
|
|
1. Exceedance for
one sample |
1. Identify
source, investigate the causes of exceedance and propose remedial measures. 2. Inform ER and
EPD. 3. Repeat
measurement to confirm finding. 4. Increase
monitoring frequency to daily. 5. Assess
effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER
informed of the results. |
1. Check
monitoring data submitted by ET. 2. Check the
Contractor’s working method. 3. Discuss with ET
Leader and the Contractor on possible remedial measures. 4. Advise ER on
the effectiveness of the proposed remedial measures. 5. Supervise
implementation of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Ensure remedial
measures properly implemented. |
1. Take immediate
action to avoid further exceedance. 2. Submit
proposals for remedial actions to IEC within 3 working days of notification. 3. Implement the
agreed proposals. 4. Amend proposal
if appropriate. |
2. Exceedance for
two or more consecutive samples |
1. Notify IEC, ER,
EPD and the Contractor. 2. Identify the
source. 3. Repeat
measurements to confirm findings. 4. Increase
monitoring frequency to daily. 5. Carry out
analysis of the Contractor’s working procedures to determine possible
mitigation to be implemented. 6. Arrange meeting
IEC and ER to discuss the remedial actions to be taken. 7. Assess
effectiveness of the Contractor’s remedial actions and keep IEC, EPD and ER
informed of the results. 8. If exceedance
stops, cease additional monitoring. |
1. Discuss amongst
ER, ET Leader and the Contractor on the potential remedial actions. 2. Review the
Contractor’s remedial actions whenever necessary and advise ER accordingly. 3. Supervise the
implementation of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. In consultation
with IEC, agree with the remedial measures to be implemented. 4. Ensure remedial
measures are properly implemented. 5. If exceedance
continues, consider what activity of the work is responsible and instruct the
Contractor to stop that activity of work until the exceedance is abated. |
1. Take immediate
action to avoid further exceedance. 2. Submit
proposals for remedial actions to IEC within 3 working days of notification. 3. Implement the
agreed proposals. 4. Resubmit
proposals if problem still not under control. 5. Stop the
relevant activity of works as determined by ER until the exceedance is
abated. |
5.2
Airborne
Construction Noise
The
construction noise level shall be measured in terms of the A-weighted
equivalent continuous sound pressure level (LAeq). LAeq,30 mins shall be used as the monitoring parameter for
the time period between 0700-1900 hours on normal weekdays. For all other time periods (including
restricted hours), LAeq,5 mins shall be employed for comparison with the Noise
Control Ordinance (NCO) criteria.
As
supplementary information for data auditing, statistical results such as L10
and L90 shall also be obtained for reference. A sample data record sheet is shown in Appendix
5-1 for reference.
In
accordance with the Technical Memorandum (TM) issued under the NCO, sound level
meters in compliance with the International Electrotechnical Commission
Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be
used for carrying out the noise monitoring.
Immediately prior to and following each noise measurement, the accuracy
of the sound level meter shall 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 calibration level from before and after the noise measurement agree to
within 1.0dB.
The ET
Leader shall be responsible for the provision, installation and maintenance of
the monitoring equipment. He shall
ensure that sufficient noise monitoring 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 shall be clearly
labelled. The location of equipment
installation should be proposed by the ET Leader and agreed with the ER and EPD
in consultation with the IEC.
Noise
measurements should not be made in the presence of fog, rain, wind with a
steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The wind speed shall be checked with a
portable wind speed meter capable of measuring the wind speed in m/s.
The noise
monitoring locations are shown in Figures 5-2-1 to 5-2-3 and summarised
in Table 5-4. The status and locations
of Noise Sensitive Receivers (NSRs) may change after issuing this Manual. In
such cases, the ET Leader should propose updated monitoring locations and seek
approval from ER, IEC and EPD.
Table 5-4: Proposed
airborne construction noise monitoring locations
ID |
Description |
NM1 |
Hong Kong
Cultural Centre |
NM2 |
No.4-8 Canton
Road |
NM3 |
Lai Chack Middle
School |
NM4 |
Man King Building |
NM5 |
Charming Garden |
NM6 |
Olympic City
Phase 3 [1] |
Note:
[1] Construction noise monitoring will be undertaken at this
location only when the development is occupied.
When
alternative monitoring locations are proposed, the monitoring locations should
be chosen based on the following criteria:
· at locations close to the major site activities which are likely to have noise impacts;
· close to the noise sensitive receivers; and
· for monitoring locations in the vicinity of the sensitive receivers, care should be taken to avoid disturbance to the occupants during monitoring.
The
monitoring station shall normally be at a point 1m from the exterior of the
sensitive receivers building facade and be at a position 1.2m above the
ground. If there is problem with access
to the normal monitoring position, an alternative position may be chosen, and a
correction to the measurements shall be made.
For reference, a correction of +3dB(A) shall be made to the free field
measurements. The ET Leader shall agree
with the IEC on the monitoring positions and the corrections adopted. Once the positions for the monitoring
stations are chosen, the baseline monitoring and the impact monitoring shall be
carried out at the same positions.
The ET
shall carry out baseline noise monitoring prior to the commencement of the
construction works. There shall not be
any construction activities in the vicinity of the stations during the baseline
monitoring. Continuous baseline noise
monitoring for the A-weighted levels LAeq, LA10 and LA90
shall be carried out daily for a period of at least two weeks in a sample
period of 5 minutes or 30 minutes between 0700 and 1900, and 5 minutes between
1900 and 0700. A schedule on the
baseline monitoring shall be submitted to the ER and IEC for approval before
the monitoring starts.
In
exceptional case, when insufficient baseline monitoring data or questionable
results are obtained, the ET Leader shall liaise with IEC and EPD to agree on
an appropriate set of data to be used as a baseline reference and submit to ER
for approval.
During
normal construction working hour (0700-1900 Monday to Saturday), monitoring of
LAeq, 30min noise levels (as six consecutive LAeq, 5min readings)
shall be carried out at the agreed monitoring locations once every week in
accordance with the methodology in the TM.
Other
noise sources such as road traffic may make a significant contribution to the
overall noise environment. Therefore,
the results of noise monitoring activities will take into account such
influencing factors, which may not be presented during the baseline monitoring
period.
In case
of non-compliance with the construction noise criteria, more frequent
monitoring as specified in the Event and Action Plan in S5.2.7 shall be
carried out. This additional monitoring
shall be continued until the recorded noise levels are rectified or proved to
be irrelevant to the construction activities.
5.2.6
Continuous
Noise Monitoring
The
Contractor shall also procure, implement and maintain a Continuous Noise
Monitoring System (CNMS) throughout the construction period, as recommended in
the EIA Report. The continuous noise
monitoring locations are shown in Figure 5-3 and summarised in Table
5-5. The status and locations of NSRs
may change after issuing this Manual. In such cases, the ET Leader should
propose updated monitoring locations and seek approval from ER, IEC and EPD.
Table 5-5: Locations of
continuous noise monitoring
ID |
Description |
CM1 |
Lai Chack Middle
School |
CM2 |
Man King Building |
5.2.6.1
System
Requirements
The objectives
of implementing the CNMS are summarized below:
· Measure various noise data (different measurement parameters) at designated locations continuously during specified period(s);
· Transmit the measured noise data electronically to a central computer system within the required time frame;
· Upload the measurement data to KCRC’s web site in an agreed format for public inspection;
· Maintain and keep all the measurement data in an agreed format during the entire construction period for subsequent analysis, where necessary.
The
general configuration of the CNMS is described below. Subject to comments / approval from KCRC, EPD and IEC, the
Contractor may propose alternative configurations to achieve the same or better
performance.
· Sound Level Meters (SLMs);
· Wireless data transmitters and receivers;
· Modems;
· Computer system (completed with necessary software and connection to Internet);
· Power supply; and
· Security measures.
The
general requirements of the above components of the CNMS are summarized in the
following table. Detail requirements
will be further elaborated in the Particular Specification.
Equipment / Components |
General Requirements |
SLMs (with data logger) |
·
Be suitable for outdoor use
·
Comply with IEC 651:1979 (Type
1), 804:1985 (Type 1) and 1672/EN61672 Class 1 requirements |
Wireless data transmitters and
receivers |
·
Be suitable for outdoor use ·
Transfer noise measurement
data from the SLMs to the receiver wirelessly ·
Transmission power /
frequency should be suitable and adequate for the local conditions |
Modems |
·
Transfers measurement data
to the computer system |
Computer system |
·
Complete with the necessary
software (eg spreadsheet, word processor and internet access) for data
processing ·
Process the measurement
data into the agreed format ·
Upload the processed data
(incl tables, charts, trends etc) to KCRC’s website which should allow the
user (incl the public) to search previous measurement data ·
Provided with sufficient
memory to keep the measurement data for further use |
Power supply |
·
Complete with all cabling
and connection to power supply ·
Complete with appropriate
backup power supply for SLMs, transmitters / receivers and computer system |
Security measures |
·
Complete with security
measures to prevent unnecessary human interference and damage |
All SLMs
shall be calibrated against a portable acoustic calibrator once every 2
weeks. The portable acoustic calibrator
shall be traceable to international reference source. Calibration records shall be stored for further reference. Full annual calibration is required every
year and the full set of noise monitoring system will be sent back to the
manufacturer (or other approved agency).
Temporary replacement would be required to maintain uninterrupted noise
measurements.
5.2.6.2
Noise Parameters
A
summary of the noise parameters to be measured by the CNMS is given in Table
5-7 below.
Table
5-7 Summary
of noise parameters for CNMS
Period |
Parameters |
Weekdays 0700-1900
hours |
Leq (30min) ·
in 6 consecutive Leq
(5 min) measurements Other parameters in L10, L90
and Lmax should also be measured |
Restricted hours 1900-0700 hours from Monday to
Saturday at any time on Sundays or public
holidays) |
Leq (15 min) ·
in 3 consecutive Leq(5
min) measurements Other parameters in L10, L90
and Lmax should also be measured |
5.2.6.3
Implementation
Responsibility
A
summary of the implementation responsibilities for the CNMS is given in Table
5-8 below.
Table
5-8 Summary
of implementation responsibilities for CNMS
Party |
Implementation Responsibilities |
EPD |
·
Review and comment on the
Method Statement to be submitted by the Contractor |
KCRC |
·
Review, comment and approve
the Method Statement to be submitted by the Contractor ·
Maintain a website to
display the measured noise data for public inspection throughout the entire
construction period |
The Engineer Representative |
·
Ensure all the EP
requirements are incorporated into the Particular Specification for the
procurement of the CNMS. ·
Ensure the CNMS is
installed and operated in a safe manner and satisfy other legislative requirements
(eg power supply). |
Independent Environmental Checker
(IEC) |
·
Comments on and verify the
Method Statement to be submitted by the Contractor ·
Verify and upload the
verified data (incl plots) and Actions / Limit Levels onto KCRC’s website
before midnight of the next day ·
Verify the calibration
records to be provided by the ET |
Contractor |
·
Submit a detailed Method
Statement before the procurement of the CNMS to state the proposed equipment,
configuration and other operational / maintenance details to IEC, KCRC and
EPD for approval. ·
Procure, install and
maintain the CNMS throughout the construction period for the impact
monitoring ·
Arrange site access for the
installation of the CNMS ·
Maintain necessary spare
parts to maintain un-interrupted operation of the CNMS. ·
Provide all necessary power
supply / connection and security measures |
Environmental Team |
·
Submit the measurement data
in an agreed format to IEC, KCRC and Contractor within one working day. ·
Conduct regular calibration
of the SLMs and the CNMS as specified. ·
Maintain field data sheet
to record meteorological data and site observations for further reference. |
5.2.7
Event and
Action Plan for Construction Noise
The
Action and Limit levels for construction noise are defined in Table 5-9. Should non-compliance of the criteria occur,
actions in accordance with the Action Plan in Table 5-10 shall be carried out.
Table 5-9: Action and limit levels for construction
noise
Time Period |
Action |
Limit |
0700-1900 hrs on
normal weekdays |
When one documented complaint is received |
75[1] dB(A) |
0700-2300 hrs on
holidays; and 1900-2300 hrs on all other days |
65/70[2]
dB(A) |
|
2300-0700 hrs of
next day |
50/55[2]
dB(A) |
Note:
[1] For
school, 70 dB(A) for schools and 65 dB(A) during school examination periods.
[2] Limit
depends on Area Sensitivity Rating (ASR).
For monitoring locations located at Canton Road (from Salisbury Road to
Kowloon Park Drive) and Haiphong Road, the ASR should be “B” and hence the
limit should be 65dB(A) and 50dB(A) for the period 0700-2300 and 2300-0700,
respectively. For monitoring locations
located at other sections, the ASR should be “C” and hence the limit should be
70dB(A) and 55dB(A) for the period 0700-2300 and 2300-0700, respectively.
Table 5-10 Event/Action
plan for airborne construction noise
Event |
Action |
|||
ET Leader |
IEC |
ER |
Contractor |
|
Action Level |
1. Notify IEC and
the Contractor. 2. Carry out
investigation. 3. Report the
results of investigation to IEC and the Contractor. 4. Discuss with
the Contractor and formulate remedial measures. 5. Increase monitoring
frequency to check mitigation measures. |
1. Review with
analysed results submitted by ET. 2. Review the
proposed remedial measures by the Contractor and advise ER accordingly. 3. Supervise the
implement of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Require the
Contractor to propose remedial measures for the analysed noise problem. 4. Ensure remedial
measures are properly implemented. |
1. Submit noise
mitigation proposals to IEC. 2. Implement noise
mitigation proposals. |
Limit Level |
1. Identify the
source. 2. Notify IEC, ER,
EPD and the Contractor. 3. Repeat
measurement to confirm findings. 4. Increase
monitoring frequency. 5. Carry out
analysis of Contractor’s working procedures to determine possible mitigation
to be implemented. 6. Inform IEC, ER,
and EPD the causes & actions taken for the exceedances. 7. Assess
effectiveness of the Contractor’s remedial actions and keep IEC, EPD and ER
informed of the results. 8. If exceedance
stops, cease additional monitoring |
1. Discuss amongst
ER, ET Leader and the Contractor on the potential remedial actions. 2. Review the
Contractor’s remedial actions whenever necessary to assure their
effectiveness and advise ER accordingly. 3. Supervise the
implementation of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Require the
Contractor to propose remedial measures for the analysed noise problem. 4. Ensure remedial
measures are properly implemented. 5. If exceedance
continues, consider what activity of the work is responsible and instruct the
Contractor to stop that activity of work until the exceedance is abated. |
1. Take immediate
action to avoid further exceedance. 2. Submit
proposals for remedial actions to IEC within
3 working days of notification. 3. Implement the
agreed proposals. 4. Resubmit
proposals if problem still not under control. 5. Stop the
relevant activity of works as determined by the ER until the exceedance is
abated. |
To
account for cases where ambient noise levels as identified by baseline
monitoring approach or exceed the stipulated Limit Levels prior to commencement
of construction, a Maximum Acceptable Impact Level may be defined and agreed
with EPD, which incorporates the baseline noise levels and the identified
construction noise Limit Level. The
amended level will therefore be greater than 75dB(A) and will represent the
maximum acceptable noise level at a specific monitoring station. Correction factors for the effects of
acoustic screening and/or architectural features of NSRs may also be applied
for as specified in the TM.
For the
purposes of compliance checking, after taking into account any adjustments
agreed with EPD, comparison with either the Limit or the Maximum Acceptable
Impact Level shall represent the governing criteria for noise impact
assessment.
For
continuous noise monitoring, in cases where the levels exceeds the Action /
Limit Levels (see S5.2.7), the hourly site log shall be examined to
check whether the exceedance is caused by extraneous activities. The ET is required to investigate whether the
exceedance is caused by KCRC’s site activities or other extraneous noise
sources. The site log should contain
brief description of prevailing wind speeds and weather, once for am and once
for pm each day. A short explanation of
the causes of any exceedance of Action / Limit Levels shall accompany the
plots.
5.3
Construction Groundborne
Noise
Prediction of construction
groundborne noise indicates the criteria will be achieved and mitigation
measures are not required. In order to
ensure proper control of groundborne noise is executed by the contractor, a
monitoring requirement is recommended at the worksites in front of the HKCC and
HKSM for assurance checking. Rock
breaking activities will be subject to an assurance groundborne noise
measurement at one selected location each inside HKCC and HKSM to be agreed
with their respective operators. If
groundborne noise criterion is exceeded, the monitoring shall continue daily
until acceptance has been restored against the criterion. Otherwise the monitoring can be
discontinued.
5.4
Operational Groundborne
Noise
The EIA
report has recommended appropriate types of trackform along the KSL alignment
to mitigate the operational groundborne noise from the future KSL train
operation. The contractor should ensure
that these trackforms are installed accordingly and a noise commissioning test
should be conducted at selected key noise sensitive receivers including Hong
Kong Cultural Centre, Hong Kong Space Museum, Hong Kong Hotel and Park Avenue
prior to operation of the project. A
summary of the operational groundborne noise criteria for the groundborne noise
sensitive receivers is given in the following table:
Table 5-11 Operational groundborne noise criteria for HKCC, HKSM,
Schools, hotel guestrooms and domestic premises
|
Groundborne Noise Criteria, dB(A) |
|
NSR Description |
Day & Evening |
Night
|
HKCC - Grand Theatre, Studio Theatre, Concert Hall |
25 (Lmax) |
- |
HKSM - Planetarium, Recording Room |
25 (Lmax) |
- |
School – Classrooms |
55 (Leq 30 mins) |
- |
Hotel guestrooms along Canton Road & Salisbury Road |
55 (Leq 30 mins) |
45 (Leq 30 mins) |
Domestic premises along Canton Road |
55 (Leq 30 mins) |
45 (Leq 30 mins) |
Note: For HKSM
and HKCC, the 25dB(A) criterion is based on FTA guidance manual. It is maximum rms average over a 1 second
period.
5.5
Operational Fixed
Source Noise
The EIA
report has provided the maximum allowable sound power levels for major fixed
noise sources. The SWL criteria shall
be implemented and refined by the Contractor.
The Contractor should also carry out a noise commissioning test for all
major fixed noise sources before operation of the project, in order to ensure
compliance of the operational airborne noise levels with the TM’s stipulated
noise standard. A summary of noise
criteria at NSRs is given in the following table:
Table 5-12 Summary of noise criteria
Area |
Time Period [1] |
Area Sensitivity Rating |
Criteria, Leq, 30 min dB(A) |
Along Canton Road |
Day & evening |
B |
60 |
|
Night |
B |
50 |
West Kowloon |
Day & evening |
B |
60 |
|
Night |
B |
50 |
Charming Garden |
Day & evening |
C |
65 |
|
Night |
C |
55 |
Contaminated groundwater from dewatering process should be recharged back into the ground at the recharging wells. The recharge wells shall be located at places where the groundwater quality will not be affected by the recharge operation. The Contractor shall perform ambient measurements on the groundwater quality with reference to ProPECC PN3/94 “Contaminated Land Assessment and Remediation”, prior to the selection of the recharge wells; and submit a working plan to EPD for agreement. The measurement data of the groundwater will serve as the baseline and the pollutant levels of the groundwater to be recharged shall be measured and not be higher than the baseline at the recharge well.
Groundwater monitoring wells will be installed to monitor the effectiveness of the recharge wells. The locations of the monitoring wells will be near to the recharge points and at site boundaries. During the recharge period, the groundwater and pollution level at the monitoring wells shall be monitored to ensure that there is no likelihood of locally risen groundwater level and transfer of pollutants beyond the site boundary. A control well shall also be selected to monitor the natural variation of the pollution level.
5.6.1 Baseline Monitoring Parameters
The chemical testing of groundwater should include the parameters and reporting limits as shown in Table 5-13 to be undertaken by a HOKLAS accredited laboratory and with individual HOKLAS accredited methods.
Table 5-13 Groundwater testing parameters and reporting limits
Parameters |
TM-Water Effluent limit for inshore waters
of VHWCZ (mg/L) |
Reporting Limit (mg/L)[1] |
|
|
|
pH |
6-9 |
|
Temperature °C |
< 40°C |
|
TPH C6 – C9 |
--- |
|
TPH C10–C14 |
--- |
20 –25 |
TPH C15 – C28 |
--- |
|
TPH C29 – C36 |
--- |
|
Dioxin (pg/L) |
--- |
10 pgL |
Cd |
0.001 |
|
Cr |
0.7 |
|
Cu |
0.7 |
|
Ni |
0.7 |
|
Pb |
0.7 |
|
Zn |
0.7 |
|
Hg |
0.001 |
|
As |
0.7 |
|
Ba |
2.7 |
|
Co |
--- |
|
Mo |
--- |
|
Sn |
--- |
|
Total Cyanide (mg/L) |
--- |
|
PAH[8] (mg/L) |
--- |
0.1 – 1 (Low molecular weight) 0.02 – 0.1 (High molecular weight) |
Benzene (mg/L) |
--- |
|
Ethylbenzene (mg/L) |
--- |
|
Toluene (mg/L) |
--- |
1 |
Meta- & Para Xylene (mg/L) |
--- |
|
Ortho Xylene (mg/L) |
--- |
|
Note:
[1]: According to Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland and Coastal Waters (TM-Water), the chemicals concentration for TPH, dioxin, BTEX and PAH should be below the Reporting limit. Discharges of PCB, PAHs, petroleum oil, pesticide and toxicant into foul sewers, inland waters and coastal waters are prohibited.
Groundwater samples at each monitoring well should be collected with PVC bailer (or equivalent). The bailer should be decontaminated prior to use and in between sampling. The groundwater samples should be transferred to clearly labelled and pre-cleaned sample containers with necessary preservatives immediately after collection. Sufficient quantity of samples should be collected for all laboratory analyses. After collection, the groundwater samples should be stored at 0-4ºC and delivered to the laboratory within 24 hours under proper chain-of-custody system.
· Prior to construction, ambient ground water quality measurements will be conducted for the WKN and the cut-&-cover tunnel to the north of WKN. The parameters and the associated reporting limits/TM-Water limits as shown in Table 5-12 should be adopted. Groundwater sampling should be conducted daily for 7 days. Where the concentrations of parameters exceed the relevant limits, the groundwater should be recharged within the site.
· The locations of the recharging wells shall be determined on the basis that the pollutant levels of the groundwater to be recharged shall not be higher than the baseline at the recharge well. Monitoring wells shall be selected near to the recharge points and at site boundaries. A control well shall also be selected within the site.
· A working plan shall be submitted to EPD for agreement prior to baseline measurement.
· An action level shall be developed based on the ambient water quality measurements.
· During the re-charging of underground water, the water level at the monitoring wells should be monitored on a daily basis to ensure that the water levels at the site boundary will not increase significantly.
· During the re-charging of underground water, the water quality at the monitoring wells and control well shall be measured on a weekly basis to ensure that the pollution levels will not increase significantly. Measurement parameters include Cd, Hg, BTEX and PAH.
· Should the pollutants of the recharging groundwater (after petrol interceptor) exceed the baseline value and there are no justifications from the measurements at the control well, the Contractor shall treat the pollutants in the recharging groundwater. Appropriate treatment would include chemical precipitation and activated carbon adsorption.
The event and action plan is summarized as follows:
Table 5-14 Event and Action Plan for Groundwater Recharging
Event |
Action |
|||
ET Leader |
IEC |
ER |
Contractor |
|
Ground water level at recharge point exceeds 1m from
baseline |
1. Notify IEC and
the Contractor. 2. Carry out
investigation. 3. Report the
results of investigation to IEC and the Contractor. 4. Discuss with
the Contractor and formulate remedial measures. 5. Increase monitoring
frequency to check mitigation measures. |
1. Review with
analysed results submitted by ET. 2. Review the
proposed remedial measures by the Contractor and advise ER accordingly. 3. Supervise the
implement of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Require the
Contractor to propose remedial measures for the analysed groundwater problem. 4. Ensure remedial
measures are properly implemented. |
1. Reduce the
recharge rate AND / OR 2. Suspend the
recharge until the groundwater level at recharge points falls back to less
than 1m difference with the baseline |
Pollution level of recharging groundwater exceed the
baseline level / the pollution levels at the monitoring well |
1. Notify IEC and
the Contractor. 2. Carry out investigation.
3. Report the
results of investigation to IEC and the Contractor. 4. Discuss with
the Contractor and formulate remedial measures. 5. Increase
monitoring frequency to check mitigation measures. |
1. Review with
analysed results submitted by ET. 2. Review the proposed
remedial measures by the Contractor and advise ER accordingly. 3. Supervise the
implement of remedial measures. |
1. Confirm receipt
of notification of exceedance in writing. 2. Notify the
Contractor. 3. Require the
Contractor to propose remedial measures for the analysed groundwater problem. 4. Ensure remedial
measures are properly implemented. |
1. Suspended the
recharge OR 2. Treatment of
the recharging groundwater |
The ET Leader shall liaise with the FMPHQ developer
to conduct structural monitoring during the construction of the mined tunnel
underneath the FMPHQ to ensure compliance with Buildings Ordinance. The monitoring shall be conducted for the
FMPHQ compound including the various built heritage within the site, the
disused air-raid tunnel and the Portal A to be preserved. The ET Leader shall prepare a methodology of
conducting structural monitoring for submission to Antiquities and Monuments
Office (AMO) and Buildings Department (BD).
In addition, before the commencement of the
construction work, the Contractor shall also consult AMO on any other
mitigation measures that would be required administratively or under the
Antiquities and Monuments Ordinance.
The Contractor shall implement these requirements from AMO during the
construction period.
Site
inspections provide a direct means to trigger and enforce the specified
environmental protection and pollution control measures. They shall be undertaken routinely to
inspect the construction activities to ensure appropriate environmental
protection and pollution control/ mitigation measures are properly
implemented. With well defined
pollution control and mitigation specifications and a well established site
inspection, deficiency and action reporting system, site inspection is one of
the most effective tools to enforce the environmental protection requirements
on the construction site.
The ET
Leader shall be responsible for formulating the environmental site inspection,
deficiency and action reporting system, and carrying out the site inspection
works. He shall submit a proposal on
site inspection, deficiency and action reporting procedures within 21 days
prior to construction commencement to the Contractor for approval from the ER
and IEC.
Regular
site inspections shall be carried out at least once per week. The areas of inspection shall not be limited
to the environmental situation, pollution control and mitigation measures
within the site. It should also review
the environmental situation outside the site area which is likely to be
affected, directly or indirectly, by the site activities. The ET Leader shall make reference to the
following information in conducting the inspection:
· the EIA recommendations on environmental protection and pollution control mitigation measures;
· works progress and programme;
· individual works methodology (which shall include proposal on associated pollution control measures);
· Contract Specifications on environmental protection;
· relevant environmental protection and pollution control laws; and
· previous site inspection results.
The
Contractor shall update ET Leader with all relevant information of the
construction Contract for him to carry out the site inspections. The inspection results and its associated
recommendations on improvements to the environmental protection and pollution
control works shall be submitted to ER, IEC and the Contractor within 1 working
day for reference and for taking immediate actions. 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.
Ad hoc
site inspections shall also be carried out if significant environmental problems
are identified. Inspections may also be
required subsequent to receipt of an environmental complaint, or as part of the
investigation work, as specified in the Action Plan for environmental
monitoring and audit.
6.2
Compliance with
Legal and Contractual Requirement
There
are contractual environmental protection and pollution control requirements as
well as environmental protection and pollution control laws in Hong Kong, which
the construction activities shall comply with.
In order to comply with the contractual requirements, all works method
statements submitted by the Contractor to the ER and IEC for approval shall be
sent to the ET Leader for vetting, to see whether sufficient environmental
protection and pollution control measures have been included.
The ET
Leader shall also review the progress and programme of the works to check that
relevant environmental laws have not been violated, and that any foreseeable
potential for violating the laws can be prevented. The Contractor shall regularly copy relevant documents to the ET
Leader so that the checking work can be carried out. The document shall at least include the updated Work Progress
Reports, the updated Works Programme, the application letters for different
licence/permits under the environmental protection laws, and all the valid
licence/permit. The site diary shall
also be available for the ET Leader's inspection upon his request.
After
reviewing the document, the ET Leader shall advise the ER, IEC and the
Contractor of any non-compliance with the contractual and legislative
requirements on environmental protection and pollution control for them to take
follow-up actions. 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 may result in potential violation of environmental
protection and pollution control requirements by the works in due course, he
shall also advise the Contractor, ER, and IEC accordingly.
Upon
receipt of the advice, the Contractor shall undertake immediate actions to
rectify the situation. The ER shall
follow up to ensure that appropriate action has been taken by the Contractor
such that the environmental protection and pollution control requirements are
fulfilled.
Complaints
shall be referred to the ET Leader for carrying out complaint
investigation. The ET Leader shall
undertake the following procedures upon receipt of the complaints:
· log complaint and date of receipt onto the complaint database;
· investigate the complaint to determine its validity, and to assess whether the source of the problem is due to works activities;
· identify mitigation measures if a complaint is valid and due to works;
· advise the Contractor accordingly if mitigation measures are required;
· review the Contractor's response on the identified mitigation measures and the updated situation;
· submit interim report to ER on status of the complaint investigation and follow-up action within the time frame assigned by the ER;
· undertake additional monitoring and audit to verify the situation if necessary, and review that any valid reason for complaint does not recur;
· report the investigation results and the subsequent actions to the source of complaint for responding to complainant (If the source of complaint is EPD, the results should be reported within the time frame assigned by EPD); and
· record the complaint, investigation, the subsequent actions and the results in the monthly EM&A reports.
The
Contractor and the ER shall also be notified of the nature of complaints. An
investigation shall be initiated to determine the validity of the complaint and
to identify the source of the problem.
As necessary, the ER shall undertake the following steps:
· Investigation and identify the source of the problem (KCRC/ IEC or the ER may request additional dust or noise monitoring);
· Liaise with the EM to identify remedial measures;
· Require the Contractor to take action to mitigate the situation;
· Repeat monitoring to check compliance with Action and Limit level; and
· Repeat review procedures to identify further possible areas of improvement if monitoring results show exceedances.
The
outcome of the investigation and the action taken shall be documented on the
complaints proforma. Where possible, a
formal response to each complaint received shall be prepared, within a maximum
of seven days, so as to notify the concerned person(s) that action has been
taken.
All
enquires which trigger this process shall be reported in the monthly EM&A
reports which shall include results of inspections undertaken by site staff,
and details of the measures taken, and additional monitoring results. It should be noted that the receipt of
complaints or enquiries will not, in itself be sufficient reason to introduce
additional mitigation measures. They will however initiate the Event/ Action
Plan and these procedures may lead to the introduction of mitigation measures
if they are considered necessary. In
all cases the complainant shall be notified of the findings of the Event/
Action Plan and audit procedures put in place to ensure that the problem does
not recur.
During
the complaint investigation work, the Contractor and ER shall cooperate with
the ET Leader in providing all the 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
ER shall ensure that the measures have been carried out by the Contractor.
A flow
chart of the complaint response procedures is shown in Appendix 6-1 and
an example of complaint proforma is provided in Appendix 6-2.
6.4
Environmental
Mitigation Measures
Environmental
mitigation measures have been recommended in EIA report which shall be
implemented to control adverse effects on air quality, noise, water quality,
wastes, land contamination, landscape and visual, and cultural heritage. The EMIS is given in Appendix 1-2. All mitigation measures shall be implemented
properly during the entire construction period. The Contractors shall review the recommended mitigation measures
with respect to the latest construction methods and programme. The Contractor shall also liaise with the ET
Leader on some other mitigation measures.
6.4.1
Dust
Mitigation Measures
The
Contractor is obliged to follow the procedures and requirements given
in the Air Pollution Control (Construction Dust) Regulation and shall be
responsible for the design and implementation of the recommended dust control
and mitigation measures, which shall include, but not limited to, the
following:
·
Proper
watering on all exposed spoil should be undertaken throughout the construction
phase;
·
Any
excavated or stockpile of dusty material should be covered entirely by impervious
sheeting or sprayed with water to maintain the entire surface wet and then
removed or backfilled or reinstated within 24 hours of the excavation or
unloading;
· Any dusty materials remaining after a stockpile is removed should be wetted with water and cleared from the surface of roads or streets;
·
A
stockpile of dusty material should not be extend beyond the pedestrian
barriers, fencing or traffic cones;
·
The
load of dusty materials on a vehicle leaving a construction site should be
covered entirely by clean impervious sheeting to ensure that the dusty
materials do not leak from the vehicle;
·
Where
practicable, vehicle washing facilities with high pressure water jet should be
provided at every discernible or designated vehicle exit point. The area where vehicle washing takes place
and the road section between the washing facilities and the exit point should
be paved with concrete, bituminous materials or hardcores;
·
When
there are open excavation and reinstatement works, hoarding of not less than
2.4m high should be provided as far as practicable along the site boundary with
provision for public crossing;
· All main haul roads should be paved with concrete, bituminous materials, hardcores or metal plates, and kept clear of dusty materials; or sprayed with water or a dust suppression chemical so as to maintain the entire road surface wet;
·
The
portion of any road leading only to construction site that is within 30m of a
vehicle entrance or exit should be kept clear of dusty materials;
·
Surfaces
where any pneumatic or power-driven drilling, cutting, polishing or other
mechanical breaking operation takes place should be sprayed with water or a
dust suppression chemical continuously;
· Any area that involves demolition activities should be sprayed with water or a dust suppression chemical immediately prior to, during and immediately after the activities so as to maintain the entire surface wet;
· Where a scaffolding is erected around the perimeter of a building under construction, effective dust screens, sheeting or netting should be provided to enclose the scaffolding from the ground floor level of the building, or a canopy should be provided from the first floor level up to the highest level of the scaffolding;
·
Any
skip hoist for material transport should be totally enclosed by impervious
sheeting;
·
Every
stock of more than 20 bags of cement or dry pulverised fuel ash (PFA) should be
covered entirely by impervious sheeting or placed in an area sheltered on the
top and the 3 sides;
·
Cement
or dry PFA delivered in bulk should be stored in a closed silo fitted with an
audible high level alarm which is interlocked with the material filling line
and no overfilling is allowed;
·
Loading,
unloading, transfer, handling or storage of bulk cement or dry PFA should be
carried out in a totally enclosed system or facility, and any vent or exhaust
should be fitted with an effective fabric filter or equivalent air pollution
control system;
·
Exposed
earth should be properly treated by compaction, turfing, hydroseeding,
vegetation planting or sealing with latex, vinyl, bitumen, shotcrete or other
suitable surface stabiliser within six months after the last construction
activity on the construction site or part of the construction site where the
exposed earth lies;
·
The
areas within 30m from the blasting area should be wetted with water prior to
blasting;
· No blasting should be carried out when strong wind signal or tropical cyclone warning signal no. 3 or higher is hoisted.
By implementing these control
measures and with good construction site
practice, it is anticipated that dust impacts will be insignificant. It is recommended that the Contractor should
undertake proper watering on all exposed spoil (with at least 4 times per day
for WKN and 2 times per day for the remaining sections) throughout the construction
phase. The barging facility should be
designed with dust enclosures along the loading ramps to avoid dust
dispersion. All road surfaces within
the barging facility should be paved.
Watering should be undertaken twice a day over the work area and all
vehicles are required to pass through designated wheel washing facilities
before leaving the barging facility.
6.4.2
Construction
Noise Mitigation Measures
The
Contractor shall be responsible for the design and implementation of the
construction noise control and mitigation measures, which shall include, but
not limited to, the following
· Use of site hoarding as noise barrier to screen noise;
· Quiet equipment and construction method should be employed;
· Only well-maintained plant shall be operated on site and plant shall be serviced regularly during the construction work;
· Machines and plant that may be in intermittent use (such as breakers) shall be shut down between work periods or should be throttled down to a minimum;
· Mobile plant shall be sited as far away from NSRs as possible;
· Material stockpiles and other structures shall be effectively utilised, where practicable, to screen noise from on-site construction activities;
· Silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works.
· The Contractor shall proactively liaise with the School Representative on a regular basis to collate the latest information on the examination periods, and carefully arrange noisy construction activities to avoid these periods;
· Use of temporary noise barrier / acoustic mat at for mobile plants.
· Temporary enclosures should be provided for static plant including compressors, generators etc.
· The TBM launching shaft should be provided with a noise insulating cover which will be closed during restricted hours to shelter the plant items. Typical configuration of acoustic panels that can achieve this insulation requirement is 1.5mm GS outer skin, 100mm acoustic infill with 80kg/m3, and an inner perforated sheet.
The predicted construction groundborne noise impacts at NSRs are within the statutory requirements and hence mitigation measures are not required.
6.4.3
Operational
Air-borne Noise Mitigation Measures
The
detailed design should incorporate the following good practice in order to
minimise the nuisance on the neighbouring NSRs.
· Louvres should be orientated away from adjacent NSRs, preferably onto main roads (eg Kowloon Park Drive, West Kowloon Expressway) which are less sensitive.
· Adequate direct noise mitigation measures including silencers, acoustic louvers, acoustic enclosures should be allowed in the design for various ECS plant.
· Facade of these plant areas / ventilation shafts should have adequate sound insulation properties to minimise the noise emanating through the building fabric.
6.4.4
Operational
Ground-borne Noise Mitigation Measures
Special trackform should be implemented along the alignment to control the transmission of groundborne vibration and hence groundborne noise impacts on the neighbouring premises.
No wastewater will be discharged directly into the Victoria
Harbour Water Control Zone (VHWCZ). The requirements on good site practices as
stipulated in ProPECC Note 5/93 “Drainage Plan subject to Comment by the
Environmental Protection Department”, ProPECC Note 1/94 “Construction Site
Drainage'” and Recommended Pollution Control Clauses for Construction Contracts
shall be adopted to handle the construction site discharges.
Where dewatering is needed during excavation, the
groundwater should be recharged below the water table outside the diaphragm
wall (or temporary walls). Groundwater
level should be monitored at the recharge point. Petrol interceptor should be installed to remove the free
product.
The
detailed design of a petrol interceptor should refer to ProPECC PN 1/94
“Construction Site Drainage”. The petrol interceptor should be inspected daily
to determine if cleaning is required.
If the oily waste or sludge is found to accumulate inside the
interceptor (e.g. the contents show the top 30% of liquid depth occupied), it
should be reported to the engineer-in-charge. The oily waste or sludge should
be removed under supervision. The sludge collected in the petrol interceptor
should be containerised properly and collected by a licensed chemical waste
collector to a licensed chemical waste treatment facility (e.g. the Chemical
Waste Treatment Centre (CWTC) at Tsing Yi) for disposal. A record of cleaning
and disposal of sludge should be kept.
The Contractor shall be responsible for controlling wastes
within the construction site, removing waste materials, and implementing
mitigation measures to minimise waste or redressing problems arising by
wastes. The waste materials may include
any sewage, waste water or effluent containing sand, cement, silt or any other
suspended or dissolved material flowing from the site onto any adjoining land,
storm sewer, sanitary sewer, or any waste matter or refuse to be deposited
anywhere within the site or onto any adjoining land, as well as public fill generated
as part of site formation activities.
The Contractor shall also pay attention to the Waste
Disposal Ordinance, the Dumping at Sea Ordinance, the Public Health and
Municipal Services Ordinance and the Water Pollution Control Ordinance, and
carry out the appropriate waste management work. The relevant licence/permit, such as the effluent discharge
licence, the chemical waste producer registration, etc shall be obtained. The Contractor shall refer to the relevant
booklets issued by EPD when applying for the licence / permit.
During the site inspections and the document review
procedures, the ET Leader shall pay special attention to the issues relating to
waste management, and check whether the Contractor has followed the relevant
Contract Specifications and the procedures specified under the laws of Hong
Kong.
Mitigation measures have been
proposed in the EIA to minimise the generation of various wastes and associated
environmental impacts. The key measures
are summarised below:
·
Ensure proper
implementation of a trip ticket system;
·
Reuse
excavated fill material for backfilling and reinstatement;
·
For the
tunnel section to the north of WKN, stockpile excavated C&D material
adjacent to its source for immediate backfill once the tunnel section is
completed;
·
Carry out
on-site sorting;
·
Surplus artificial hard materials should be
delivered to Tuen Mun Area 38 recycling plant for recycling into subsequent
useful products;
·
Use the existing bituminous pavement for paving of
construction access and temporary holding / parking areas;
·
Use
standard formwork as far as practicable to minimise the arising of C&D
materials;
·
Use
metal hoarding to enhance the possibility of being recycled;
·
Consider
alternatives that generate reduced quantities or even no chemical waste, or
less dangerous types of chemical waste;
·
Handle
chemical waste in accordance with the Code of Practice on the Packaging,
Handling and Storage of Chemical Wastes;
·
Provide
adequate numbers of portable toilets for the workers and maintain the toilet in a clean
state;
·
Ensure
all general refuse is stored in enclosed bins or compaction units and provide
waste separation facilities for paper, aluminium cans, plastic bottles etc.
A land contamination assessment
has been conducted and historical information such as site geological
information, ground condition, aerial photos have been reviewed. It has been concluded that approximately 39m3
of soil near the ex-government dockyard at Canton Road Government was
contaminated and hence need to be properly disposed. Figure 6-1 shows the location of this hot spot.
The soil excavation and disposal
methodology and the requirements for compliance testing for contaminated soil
are given below.
6.4.7.1
Excavation and
Disposal Methodology
The Remediation Assessment Plan
(RAP) has been prepared and submitted to EPD for approval. During excavation of the contaminated soil,
the procedure provided in the RAP shall strictly be followed.
The remediation area for contaminated soil shall be clearly
marked out on site and excavated to an extent of 3.5m radius from the sample
location. Excavation shall be
undertaken by dedicated earth-moving plant.
The overlaying uncontaminated material shall be removed and
stockpiled adjacent to the excavation until the specified depth is reached. The excavated contaminated soils should not
be stockpiled on site, but should immediately be loaded onto trucks and taken
to the chosen landfill site. All trucks carrying contaminated material should
be adequately covered by sheets to prevent dispersion of contamination.
The remediation Contractor shall have a valid discharge
licence from EPD where applicable and should carry out the remediation works in
accordance with all relevant legislative requirements and EPD’s Guidance Note.
The remediation programme shall be supervised by the
on-site Geotechnical Engineer (to be appointed by the Contractor) with at least
7 years experience in contamination assessment or decontamination. All relevant method statements prepared by
the remediation Contractor should be reviewed and approved by the
Decontamination Specialist before proceeding with the works.
Following completion of excavation to the specified depth,
at least one sample from the base of the excavation and three samples evenly
distributed along the boundary of the excavation shall be taken for carrying
out the compliance testing. The compliance testing requirements are shown in
Table 6-1.
Table 6-1:
Requirements for compliance testing
Locations |
Testing
Requirement |
Acceptance Criteria |
KSD100/DH063 |
Lead |
Dutch B Level |
If the analysis indicates continued presence of
contamination, the excavation shall be extended a further 1m depth or wide with
material disposed of as described above, and a further sample taken for
compliance testing. The process of excavation, sampling and compliance testing
should continue until all contaminated material is removed. The excavated hole
shall then be backfilled by using suitable clean fill material.
6.4.7.3
Protective and
Safety Measures
The contaminants present on the site are at relatively low
levels, and are not expected to pose serious acute health risk to the site
workforce. However, it is good practice to ensure that remediation workers are
adequately protected to ensure that there are no significant residual risks.
The health and safety precautions shall be followed:
· Personal Protective Equipment (PPE) such as safety hat, chemical protective gloves, masks eye goggles, protective clothing (upgraded if contact with contaminated material cannot be avoided) and protective footwear etc. must be provided to staff, which would be involved in the remediation work. No works should be allowed without the suitable PPE.
· Workers should inspect and check their PPE before, during and after use. In cases where any of the PPE is broken, the worker shall stop work immediately and inform the on-site registered safety officer. The worker is not allowed to re-start his work until the broken PPE is replaced.
· Hand washing basins or other washing facilities shall be provided in areas easily accessible to all workers.
· Workers shall always maintain basic hygiene standard (e.g. hand wash before leaving the contaminated work zone). Workers shall also be responsible for cleaning and storing their own PPE in a secure place before leaving the site.
· Eating, drinking and smoking must be strictly prohibited within the site areas.
· It should be noted that these precautions are additional to any other health and safety requirements that will apply on the site such as those requiring protective footwear and headgear.
A number of mitigation measures have been identified in the
EIA to minimise the landscape and visual impacts during the construction phase
and operational phase as detailed in the EMIS.
The effectiveness of the Contractor’s implementation and maintenance of
these mitigation measures will be monitored as part of the ongoing site audit
programme.
6.4.8.1
Landscape
· To retain and protect existing trees within Contractor’s temporary works areas;
· To ensure that trees to be maintained are not damaged during the construction work;
· To ensure that tree transplanting is conducted efficiently without reducing the survival potential of the transplanted tree;
· To incorporate all compensatory trees as in the EIA Report;
· To protect Champion trees at all times;
· To ensure that landscape restoration works commence at the earliest opportunity to minimise the visual impact of the works;
· To monitor planting, if applicable, to ensure correct species and correct spacing etc. to ensure maximum possible survival rates are achieved;
· To monitor the number of planted trees to ensure that tree loss is adequately compensated for in terms of their numbers;
· To take photographical records of all retained trees before construction;
· To provide a Tree Protection Specification and a Tree Transplanting Specification in Contract Specification;
· To submit a detailed Construction Method Statement, under the detailed Tree Protection Specification, for trees protection by Contractor; and
· To ensure the provision of an attractive public streetscape area in front of West Kowloon Station (at least 400sq.m.), with shade trees in paving and adequate seating facilities, as partial mitigation for the permanent alienation of public open space at corner of Canton Road and Kowloon Park Drive.
6.4.8.2
Visual
· To ensure that site hoardings are positioned correctly to provide visual screening of the works from key sensitive receivers; and
· To ensure that the recommendations of the EIA for hoarding arrangement, colours, design and heights are implemented efficiently on-site and are maintained in a clean and tidy state during construction.
The ET Leader shall conduct
structural monitoring during the construction of the mined tunnel underneath
the FMPHQ to ensure compliance with the Buildings Ordinance. He shall prepare and submit a monitoring
methodology for submission to the relevant government departments (e.g. BD,
AMO) for agreement / approval.
In addition, before the
commencement of the construction work, the Contractor shall also consult AMO on
any other mitigation measures that would be required administratively or under
the Antiquities and Monuments Ordinance.
The Contractor shall implement these requirements from AMO during the
construction period.
The following reporting requirements based upon a paper
documented approach. However, the same
information can be provided in an electronic medium upon agreeing the format
with the ER and EPD. This would enable
a transition from a paper/historic and reactive approach to an electronic/real
time proactive approach.
7.2
Baseline
Monitoring Report
The ET Leader shall prepare and submit a Baseline
Environmental Monitoring Report, endorsed by IEC, within 10 working days of
completion of the baseline monitoring.
Copies of the Baseline Environmental Monitoring Report shall be
submitted to each of the four parties: the Contractor, IEC, ER and EPD. The ET Leader shall liaise with the relevant
parties on the exact number of copies required. The format of the report and the format of the baseline
monitoring data in magnetic media to be submitted to EPD shall be agreed with
EPD.
The baseline monitoring report shall include at least the
following:
· up to half a page executive summary;
· brief project background information;
· drawings showing locations of the baseline monitoring stations;
· monitoring results (in both hard and diskette copies) together with the following information:
- monitoring methodology
- equipment used and calibration details
- parameters monitored
- monitoring locations (and depth)
- monitoring date, time, frequency and
duration;
· details on influencing factors, including:
- major activities, if any, being carried
out on the site during the period
- weather conditions during the period
- other factors which might affect the
results;
· determination of the Action and Limit Levels for each monitoring parameter and statistical analysis of the baseline data;
· revisions for inclusion in the EM&A Manual; and
· comments and conclusions.
The results and findings of all EM&A works required in
this Manual shall be recorded in the monthly EM&A reports prepared by the
ET Leader and endorsed by IEC. The
EM&A report shall be prepared and submitted within 10 working days of the
end of each reporting month, with the first report due in the month after
construction commences. Copies of each
monthly EM&A report shall be submitted to each of the four parties: the
Contractor, ER, IEC and EPD. Before
submission of the first EM&A report, the ET Leader shall liaise with the
parties on the exact number of copies and format of the monthly reports in both
hard copy and electronic medium requirement.
The ET leader shall review the number and location of
monitoring stations and monitoring parameters every 6 months or on as needed
basis in order to cater for the changes in surrounding environment and nature
of works in progress.
7.3.1
First Monthly
EM&A Report
The first monthly EM&A report shall include at least
the following :
· 1-2 pages executive summary;
· basic project information including a synopsis of the project organisation, programme and management structure, and the work undertaken during the month;
· a brief summary of EM&A requirements including:
- all monitoring parameters
- environmental quality performance limits
(Action and Limit levels)
- Event-Action Plans
- environmental mitigation measures, as
recommended in the EIA report
- environmental requirements in Contract
documents;
· advice on the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the EIA report and implementation schedule;
· drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
· monitoring results (in both hard and diskette copies) together with the following information:
- monitoring methodology
- equipment used and calibration details
- parameters monitored
- monitoring locations (and depth)
- monitoring date, time, frequency, and
duration;
· graphical plots of trends of monitored parameters over the past four scheduled audits for representative monitoring stations annotated against the following:
- major activities being carried out on
site during the period
- weather conditions during the period
- any other factors which might affect the
monitoring results;
· advice on the solid and liquid waste management status;
· a summary of non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);
· a review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures;
· a description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance;
· a summary record of all complaints received (written or verbal) for each media, including locations and nature of complaints, liaison and consultation undertaken, actions and follow-up procedures taken and summary of complaints; and
· An account of the future key issues as reviewed from the works programme and work method statements.
The subsequent monthly EM&A reports shall include the
following :
· Title Page;
· Executive Summary (1-2 pages)
- Breaches of AL levels
- Complaint Log
- Reporting Changes
- Future key issues;
· Contents Page;
· Environmental Status
- Drawing
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations
- Summary of
non-compliance with the environmental quality performance limits
- Summary of
complaints;
· Environmental Issues and Actions
- Review issues
carried forward and any follow-up procedures related to earlier non-compliance
(complaints and deficiencies)
- Description
of the actions taken in the event of non-compliance and deficiency reporting
- Recommendations
(should be specific and target the appropriate party for action)
- Implementation
status of the mitigation measures and the corresponding effectiveness of the
measures;
· Future Key Issues; and
· Appendix
- AL levels
- Graphical
plots of trends of monitored parameters at key stations over the past four
scheduled audits for representative monitoring stations annotated against the
following:
i)
major activities being carried out on site during the
period
ii)
weather conditions during the period
&nbs