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Provision of Cremators at
Wo Hop Shek Crematorium |
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Environmental
Monitoring and Audit Manual |
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Author: |
Gigi Ho |
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Checker: |
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Approver: |
Dr. Guiyi Li |
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Report no: |
01256R0021 |
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Date: |
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47th Floor, Hopewell Centre, 183 Queens Road East, Wanchai, Hong Kong Tel: +852 2911 2233 Fax: +852 2805 5028 www.hyderconsulting.com |
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Contents
1.1 Background..................................................................................................................... 1
1.2 Purpose of the Manual.................................................................................................... 1
1.3 Environmental Monitoring and Audit
Requirements.......................................................... 3
1.4 Project Organisation........................................................................................................ 3
1.5 Structure of the Manual.................................................................................................... 5555
2.1 Air Quality Monitoring Parameters................................................................................... 7777
2.2 Monitoring Equipment...................................................................................................... 7777
2.3 Laboratory Measurement / Analysis................................................................................ 9999
2.4 Monitoring Locations........................................................................................................ 9999
2.5 Baseline Monitoring....................................................................................................... 10101010
2.6 Impact Monitoring.......................................................................................................... 11111111
2.7 Event and Action Plan for Air Quality............................................................................. 11111111
2.8 Operation monitoring..................................................................................................... 15151515
2.9 Mitigation Measures....................................................................................................... 16161616
3.1 Introduction.................................................................................................................... 19191919
3.2 Mitigation Measures....................................................................................................... 19191919
4.1 Further Site Investigations............................................................................................. 21212121
5.1 Introduction.................................................................................................................... 23232323
5.2 Mitigation Measures....................................................................................................... 23232323
6.1 Introduction.................................................................................................................... 32323232
6.2 Environmental Monitoring and Audit.............................................................................. 32323232
6.3 Mitigation Measures....................................................................................................... 32323232
7.1 Introduction.................................................................................................................... 37373737
7.2 Mitigation Measures....................................................................................................... 37373737
8.1 Introduction.................................................................................................................... 39393939
8.2 Environmental Monitoring and Audit.............................................................................. 39393939
8.3 Mitigation Measures....................................................................................................... 40404040
9.1 Site Audit....................................................................................................................... 43434343
9.2 Compliance with Legal and Contractual
Requirements.................................................. 44444444
9.3 Environmental Complaints............................................................................................. 44444444
10.1 General......................................................................................................................... 46464646
10.2 Baseline Monitoring Report........................................................................................... 46464646
10.3 Monthly EM&A Reports................................................................................................. 47474747
10.4 Quarterly EM&A Summary Reports............................................................................... 51515151
10.5 Final EM&A Review Reports......................................................................................... 53535353
10.6 Data Keeping................................................................................................................ 54545454
10.7 Interim Notifications of Environmental
Quality Limit Exceedances.................................... 55555555
10.8 Electronic
Reporting of EM&A Information...................................................................... 55555555
Table 2-1 Air Quality Monitoring
Locations 9
Table
2-2 Action and Limit
Levels for Air Quality 11
Table 2-3 Event and Action
Plan for Air Quality 14
Table
4-1 Testing
Parameters for Future Site Investigation 21
Table
5-1 Future
Contamination Investigation Requirements 26
Table
5‑2 Proposed contamination Classification
for Ash Waste with DCM/HMCM 27
Table 6-1 Implementation Schedule for Landscape and Visual 36
Table
2-1
Air Quality Monitoring Locations 9
Table
2-2
Action and Limit Levels for Air Quality 11
Table
2-3
Event and Action Plan for Air Quality 14
Table
4-4
Testing Parameters for Future Site Investigation 21
Table
5-5
Future Contamination Investigation Requirements 26
Table
5‑6 Proposed contamination Classification
for Ash Waste with DCM/HMCM 27
Table 6-7 Implementation
Schedule for Landscape and Visual 36
Figure 2-1 Air Quality
Monitoring Location
Figure 1-1 Location Plan
Figure 2-1 Air Quality Monitoring Location
Figure 1-1 Location Plan
Figure 2-2 Air Quality
Monitoring Location
List of Appendices
Appendix A Environmental Mitigation Implementation Schedule
Appendix C Air Quality Monitoring Field Log Sheet
Appendix D Sample Template for Interim Notification
Appendix A Environmental Mitigation
Implementation Schedule
Appendix B EM&A Organisation
Appendix C Air Quality Monitoring Field
Log Sheet
Appendix D Sample Template for Interim
Notification
List of
Abbreviations
ACM Asbestos Containing Materials
AIR Asbestos Investigation Report
AR Architect’s Representative
ArchSD Architectural Services Department
ASRs Air Sensitive Receivers
BPM Best Practicable Means
C&D Construction and Demolition
CAP Contaminated Assessment Plan
CAR Contaminated Assessment Report
CEDD Civil, Engineering and Development Department
CNL Corrected Noise Level
CNP Construction Noise Permit
CWTC Chemical Waste Treatment Centre
DCM Dioxin Contaminated Materials
EIA Environmental Impact Assessment
EIAO Environmental Impact Assessment Ordinance
EIAO-TM Technical Memorandum on Environmental Impact Assessment Ordinance
EM&A Environmental
Monitoring and Audit
EPD Environmental Protection Department
ET Environmental Team
ETWB Environment, Transport and Works Bureau
FEHD Food and Environmental Hygiene Department
HCl Hydrogen chloride
HEPA High Efficiency Particulate Air
Hg Mercury
HKPSG Hong Kong Planning Standards and Guidelines
HMCM Heavy Metal Contaminated Materials
HOKLAS Hong Kong Laboratory Accreditation Scheme
HTML Hyper Text Markup Language
HVS High Volume Sampler
IEC Independent Environmental Checker
NCO Noise Control Ordinance
NSRs Noise Sensitive Receivers
PAH Polyaromatic Hydrocarbons
PAHCM Polyaromatic Hydrocarbons Contaminated Materials
PCB Polychlorinated Biphenyls
PME Powered Mechanical Equipment
ProPECC Practice Note for Professional Persons
RAP Remediation Action Plan
RSP Respirable Suspended Particulates
TC Technical Circular
TCLP Toxicity Characteristics Leaching Procedure
TM Technical Memorandum
TPH Total Petroleum Hydrocarbon
TPHCM Total Petroleum Hydrocarbon Containing Materials
TSP Total Suspended Particulates
VSRs Visual Sensitive Receivers
WPCO Water Pollution Control Ordinance
1.1.1 The existing Wo Hop Shek Crematorium is a coffin crematorium with two twin cremators. A skeletal cremator building with a single cremator operates nearby for the cremation of skeletal remains from burial. The skeletal cremator and the coffin cremators were commissioned in the 1960’s and 1991 respectively.
1.1.2
As the five existing cremators are approaching the end of
their serviceable life, the Food and Environmental Hygiene Department (FEHD)
proposes to demolish the existing coffin crematorium and the skeletal cremator
building and to construct in-situ a new crematorium in the same site. The title
of the proposed Project is “Provision of Cremators at Wo Hop Shek Crematorium”
(hereafter referred to as the ‘Project’).
The Project location is shown in Figure 1-1 Location PlanFigure 1-1Figure 1-1Figure
1-1.
1.1.3 Hyder Consulting Limited has been appointed by the Architectural Services Department (ArchSD) as the Consultant to undertake the Environmental Impact Assessment (EIA) for this Project.
1.1.4 The construction phase will be divided in the three phases outlined below:
Phase I (Year 20089 to Year 20101)
1.1.5 Construction works include the demolition of the existing coffin crematorium building, transformer room and pump room and provision of five new coffin cremators, one dual-purpose cremator, one new skeletal cremator, one cremation plant room with sufficient space for housing nine single cremators and other ancillary facilities such as service halls. The new crematorium will provide seven cremators upon completion of Phase I.
Phase II (Year 20120 to Year 2011)
1.1.6 The existing skeletal cremator building will be demolished upon completion of Phase I (i.e. there will be no overlapping between Phases I and II).
Phase III: Future Expansion Phase (for completion by around 2014)
1.1.7 Two additional cremators and one additional service hall will be provided upon completion of Phase II to allow future expansion.
1.2.1
The purpose of this Environmental Monitoring and Audit
(EM&A) Manual (hereafter refer to as the “Manual”) is to guide the set up
of an EM&A programme to ensure compliance with the Environmental Impact
Assessment (EIA) study recommendations, to assess the effectiveness of the
recommended mitigation measures and to identify any further need for additional
mitigation measures or remedial action.
This Manual outlines the monitoring and audit programme for the construction
phase of the Project. It aims to
provide systematic procedures for monitoring, auditing and minimising
environmental impacts associated with construction works and operational
activities.
1.2.2
Hong Kong environmental regulations, the Hong Kong
Planning Standards and Guidelines (HKPSG) and recommendations in the EIA
Report for the Project have served as environmental standards and guidelines in
the preparation of this Manual. In
addition, the EM&A Manual has been prepared in accordance with the
requirements stipulated in Annex 21 of the Technical Memorandum on the EIA
Process (EIAO-TM).
1.2.3
This Manual contains the following information:
§ Responsibilities of the Contractor, the Architect’s Representative (AR), the Environmental Team (ET) and the Independent Environmental Checker (IEC) with respect to the environmental monitoring and audit requirements during the course of the Project;
§ Project organisation for the Project;
§ The basis for, and description of the broad approach underlying the EM&A programme;
§ Requirements with respect to the construction schedule and the necessary environmental monitoring and audit programme to track the varying environmental impact;
§ Details of the methodologies to be adopted, including all field laboratories and analytical procedures, and details on quality assurance and quality control programme;
§ The rationale on which the environmental monitoring data will be evaluated and interpreted;
§ Definition of Action and Limit levels;
§ Establishment of Event and Action Plans;
§ Requirements for reviewing pollution sources and working procedures required in the event of non-compliance with the environmental criteria and complaints;
§ Requirements for presentation of environmental monitoring and audit data and appropriate reporting procedures;
§
Requirements for review of EIA predictions and the
effectiveness of the mitigation measures / environmental management systems and
the EM&A programme.
1.2.4
For the purpose
of this manual, 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 EM&A
requirements.
1.3.1
Any potential impacts from the construction and operation
phases have been assessed and presented in the EIA Report. The EIA Report has specified the
recommended environmental mitigation measures to minimise any potential adverse
environmental impacts identified.
An implementation schedule of the recommended environmental mitigation
measures is prepared as part of the EIA study and is summarised in Appendix A
Environmental Mitigation of this Manual.Appendix AAppendix AAppendix
A
of this Manual.
1.3.2 To ensure that the mitigation measures recommended in the EIA study are implemented fully and resulted in the expected effectiveness, this Manual defines the scope of EM&A requirements for the construction and operation of the Project to achieve satisfactory environmental performance. The EM&A requirements for the Project shall be as follows:
§ Pre-Construction Phase – conduct baseline monitoring prior to any Project activity occurring on site;
§ Construction Phase – conduct impact / compliance monitoring and environmental audit during all construction activities; and
§ Operation Phase – conduct air quality monitoring during the operation of the new crematorium.
1.3.3 The environmental monitoring programme shall also be assessed by regular environmental audit. This aims to determine whether satisfactory compliance with the legislative requirements has been met, and to ensure that no impact is being caused to sensitive receivers. If impact is being caused, the remedial action plan will be initiated, if required. This shall require information on the standards for parameters of concern and monitoring data. The environmental audit shall review the monitoring data and compare the audit conditions with the relevant legislative requirements and environmental performance standards specified in the Contract Document.
1.4.1
The proposed Project organisation and lines of
communication with respect to environmental protection works for designated
project are shown in Appendix BAppendix BAppendix BAppendix
B.
1.4.2 The ET Leader and the ET shall be an independent party from the Contractor. The ET shall be led and managed by the ET Leader who shall be the person having at least 7 years experience in EM&A or environmental management. The IEC shall have the same experience and professional qualifications as stipulated above for the ET Leader.
1.4.3 The responsibility of respective parties are:
The Contractor
§ Employ an ET to undertake monitoring, laboratory analysis and reporting of environmental monitoring and audit;
§ Provide information / advice to the ET regarding works activities which may contribute, or be continuing to the generation of adverse environmental conditions;
§ Submit proposals on mitigation measures in case of exceedances of Action and Limit levels in accordance with the Event and Action Plans;
§ Implement measures to reduce impact whenever Action and Limit levels are exceeded;
§ Implement the corrective actions instructed by the Engineer;
§
Accompany joint site inspectionaudit
undertaken by the ET; and
§
Adhere to the procedures for carrying out complaint
investigation in accordance with Section 9.3 of this Manual.
Environmental Team
§ Monitor various environmental parameters as required in the EM&A Manual;
§ Analyse the environmental monitoring and audit data and review the success of EM&A programme to cost-effectively confirm the adequacy of mitigation measures implemented and the validity of the EIA predictions and to identify any adverse environmental impacts arising;
§
Carry out site inspectionaudit to
investigate and audit the Contractors' site practice, equipment and work methodologies
with respect to pollution control and environmental mitigation, and effect
proactive action to pre-empt problems;
§ Audit and prepare audit reports on the environmental monitoring data and site environmental conditions;
§ Report on the environmental monitoring and audit results to the IEC the Contractor, the AR and the Environmental Protection Department (EPD) or its delegated representative;
§ Recommend suitable mitigation measures to the Contractor in the case of exceedance of Action and Limit levels in accordance with the Event and Action Plans; and
§
Adhere to the procedures for carrying out complaint
investigation in accordance with Section 9.3 of this Manual.
Architect’s Representative
§ Supervise the Contractor’s activities and ensure that the requirements in the EM&A Manual are fully complied with;
§ Inform the Contractor when action is required to reduce impacts in accordance with the Event and Action Plans;
§
Participate in joint site inspectionaudit
undertaken by the ET;
§ Employ an IEC to audit the results of the EM&A works carried out by the ET; and
§
Adhere to the procedures for carrying out complaint
investigation in accordance with Section 9.3 of this Manual.
Independent Environmental Checker
§ Review the EM&A works performed by the ET (at not less than monthly intervals);
§ Audit the monitoring activities and results (at not less than monthly intervals);
§ Report the audit results to the AR and EPD in parallel;
§ Review the EM&A reports (monthly and quarterly summary reports) submitted by the ET;
§ Review the proposal on mitigation measures submitted by the Contractor in accordance with the Event and Action Plans; and
§
Adhere to the procedures for carrying out complaint
investigation in accordance with Section 9.3 of this Manual.
1.4.4
Sufficient and suitably qualified professional and
technical staff should be employed by the respective parties to ensure full
compliance with their duties and responsibilities, as required under the
EM&A programme for the Project.
1.5.1 Following this introductory section, this Manual is set out as follows:
Section 2 Describes
details of baseline, impact and operation phase monitoring of air quality;
Action and Limit levels; and contingency procedures.
Sections 3 to 7 Describe proper management practices for noise, land contamination, waste management, landscape and visual, and water quality.
Section 8 Describes
impact monitoring and mitigation measures on ecology.
Section 9 Describes the scope, approach and frequency of site audit.
Section 10 Describes the reporting requirements, data keeping requirements, electronic reporting of EM&A information as well as the procedures of the issue of Notification of Exceedances to relevant parties in case exceedance in the measurement result is recorded.
2.1.1
The air quality
impact assessment indicates that there would be construction dust impact during
the construction phases of the Project, if dust control measures (i.e. water
spraying) is not implemented properly.
EM&A of air quality during the construction phase is recommended.
2.1.2
Monitoring of
the Total Suspended Particulates (TSP) levels shall be carried out by the ET
during the construction phase in order to ensure that any deteriorating air
quality can be readily detected and timely action taken to rectify the situation.
2.1.3
TSP levels in
1-hour and 24-hour shall be measured to indicate the impacts of construction
dust on air quality. TSP levels
shall be measured by following the standard high volume sampling (HVS) method
as set out in the Title 40 of the Code of Federal Regulations, Chapter 1
(Part 50), Appendix B. Upon
approval of the AR and the IEC, 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.
2.1.4
All relevant
data including temperature, pressure, weather conditions, elapsed-time meter
reading for the stat 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 field log sheet is shown
in Appendix CAppendix CAppendix CAppendix
C to this Manual.
2.2.1
High Volume
Sampler (HVS) in compliance with the following specifications shall be used for
carrying out the 1-hour and 24-hour 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-hour 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-hour period.
2.2.2
The ET Leader shall
be responsible for provision of the monitoring equipment and associated power
supply. The ET Leader
shall ensure that sufficient numbers of HVSs with an appropriate calibration
kit are available for carrying out the 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 ET Leader shall also liaise with
the concerned parties for gaining access to the monitoring stations for the
installation of the monitoring equipment and carrying out the monitoring.
2.2.3
The flow rate
of each HVS with mass flow controller shall be calibrated using an orifice
calibrator. Initial calibration of
dust monitoring equipment shall be conducted upon installation and prior to
commissioning. One point flow rate
calibration shall be carried out every two months. Five-point calibration shall be carried out every six months.
2.2.4
The transfer
standard shall be traceable to the internationally recognized primary standard
and be calibrated annually. The calibration data shall be properly documented
for future reference by the concerned parties, such as the
IEC. All the data shall be
converted into standard temperature and pressure conditions.
2.2.5
If the ET
Leader proposes to use a direct reading dust meter to measure 1-hour TSP
levels, he shall submit sufficient information to the IEC to prove that the
instrument is capable of achieving a comparable result as that of HVS. The instrument shall also be calibrated
regularly, and the 1-hour TSP sampling shall be determined periodically by HVS
to check the validity and accuracy of the results measured by direct reading method.
2.2.6
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 AR in
consultation with the IEC. 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 of turbulence caused by the buildings;
§ The wind data shall be captured by a data logger and to be 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.
2.2.7 In exceptional situations, the ET Leader may propose alternative methods to obtain representative wind data from the IEC and the AR, and agreement from the IEC.
2.3.1
A clean
laboratory with constant temperature and humidity control, and equipped with
necessary measuring and conditioning instruments to handle the dust samples
collected, shall be made available for sample analysis, and equipment
calibration and maintenance. The
laboratory is preferably Hong Kong Laboratory Accreditation Scheme (HOKLAS)
accredited.
2.3.2
If a site
laboratory is set up or a non-HOKLAS accredited laboratory is hired for
carrying out the laboratory analysis, the laboratory equipment and measurement
procedures shall meet with the satisfaction of the AR in consultation with the
IEC. The ET Leader shall provide
the AR with one copy of the Title 40 of the Code of Federal Regulations,
Chapter 1 (Part 50), Appendix B for his reference.
2.3.3
Filter paper
of size 8”×10” shall be labelled before sampling. It shall be a clean filter paper with no pin holes, and
shall be conditioned in a humidity controlled chamber for over 24-hour and be
pre-weighed before use for the sampling.
2.3.4
After
sampling, the filter paper loaded with dust shall be kept in a clean and tightly
sealed plastic bag. The filter paper is then 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.
2.3.5
All the
collected samples shall be kept in a good condition for 6 months before
disposal.
2.4.1
Two designated
monitoring stations, namely A22a and A22b, are selected for 1-hour and 24-hour
TSP monitoring. Table 2-1Table 2-1Table 2-1Table
2-1 describes the air quality monitoring locations, which
are also depicted in Figure 2-1 Air
Quality Figure
2-1Figure 2-1Figure 2-2.
|
Air Monitoring Location ID |
Location |
|
A |
Wo Hop |
|
|
Wo Hop Shek San Tsuen |
Table 2-1 Air Quality Monitoring Locations
2.4.2
The status and
locations of dust sensitive receivers may change after issuing this Manual. If
such cases exist, the ET Leader shall propose updated monitoring locations and
seek approval from the AR and the IEC and agreement from EPD on the proposal.
2.4.3
When
alternative monitoring locations are proposed, the following criteria for the
proposed locations, as far as practicable, shall be followed:
§ To be located at the site boundary or such locations close to the major dust emission source;
§ To be located close to the sensitive receivers; and
§
Take into account the prevailing meteorological
conditions.
2.4.4
The ET Leader
shall agree with the AR on the position of the HVS for installation of the
monitoring equipment. When
positioning the samplers, the following points shall be noted:
§
A horizontal platform shall be provided with
appropriate support to secure the samplers against gusty wind;
§ No two samplers shall be placed less than two metres apart;
§ The distance between the sampler and an obstacle, such as buildings, shall be at least twice the height that the obstacle protrudes above the sampler;
§ A minimum of two meters of separation from walls, parapets and other structures is required for rooftop samples;
§ A minimum of two meters separation from any supporting structure, measured horizontally is required;
§
No furnaces or incineration flues isare nearby;
§ Airflow around the sampler is unrestricted;
§ The sampler is more than 20 meters from any drip line;
§ Any wire fence and gate, to protect the sampler, shall 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.
2.5.1
Baseline
monitoring shall be carried out at all the designated monitoring locations for
at least 14 consecutive days prior to the commencement of the major
construction works to obtain daily 24-hour TSP samples. 1-hour TSP sampling shall also be done
at least three times per day while highest dust impact is expected. Before commencing the baseline
monitoring, the ET Leader shall submit the baseline monitoring programme to the
AR and the IEC for approval.
2.5.2
During the
baseline monitoring, there shall not be any construction or dust generation
activities from the Project in the vicinity of the monitoring stations.
2.5.3
In case the
baseline monitoring cannot be carried out at the designated monitoring
locations during the baseline monitoring period, the ET Leader shall propose
alternative monitoring locations that can effectively represent the baseline
conditions at the impact monitoring locations. The alternative baseline
monitoring locations shall be approved by the AR and agreed with the IEC.
2.5.4
In exceptional
cases, when insufficient baseline monitoring data or questionable results are
obtained, the ET Leader shall liaise with the IEC and EPD to agree on an
appropriate set of data to be used as a baseline reference and submit to AR and
IEC for approval.
2.5.5
Ambient
conditions may vary seasonally and shall be reviewed at six monthly
intervals. If the ET Leader
considers that the ambient conditions have been changed and baseline levels
need to be updated by means of a repeat of the baseline monitoring. 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 changes in ambient conditions be determined, the baseline levels
and, in turn, the air quality criteria, shall be revised. The revised baseline levels and air
quality criteria shall be agreed with the IEC and EPD.
2.6.1
The ET Leader
shall carry out impact monitoring during the course of the construction phase
of the Project. Regular impact
monitoring consists of three sets of 1-hour TSP and one set of 24-hour TSP
sampling once every six days during the time 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 shall be
strictly followed.
2.6.2
In case of
non-compliance with the air quality criteria, more frequent monitoring 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
caused by the Project is rectified.
2.7.1
The baseline
monitoring results form the basis for determining the air quality criteria for
the impact monitoring. The ET Leader shall compare the impact monitoring
results with air quality criteria set up for 1-hour TSP and 24-hour TSP. Table 2-2Table 2-2Table 2-2Table
2-2, below, shows the Action and Limit levels to be used.
Should non-compliance of the air quality criteria occur, actions in accordance
with the Event and Action Plan in Table 2-3Table 2-3Table 2-3Table
2-3 shall be carried out.
|
Parameters |
Action Level |
Limit Level |
|
24-hour TSP Level in µg/m³ |
For
baseline level ≤ 200 µg/m³, Action level = (average of baseline level *1.3 +
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 = (average of baseline level * 1.3 +
Limit level)/2 For
baseline level > 384 µg/m³, Action level = Limit level |
500 |
|
Event |
Action |
|||
|
ET |
IEC |
AR |
Contractor |
|
|
Action Level |
||||
|
Exceedance for one sample |
1. Identify
source, investigate the causes of complaint and propose remedial measures; 2. Inform IEC
and AR; 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. |
|
Exceedance for two or more consecutive samples |
1.
Identify source; 2.
Inform IEC and AR; 3.
Advise the AR 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 Contractor on remedial actions
required; 7.
If exceedance continues, arrange meeting with IEC and AR; 8.
If exceedance stops, cease additional monitoring. |
1. Check
monitoring data submitted by ET; 2. Check
Contractor’s working method; 3. Discuss with
ET and Contractor on possible remedial measures; 4. Advise the
ET 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
Contractor; 3. Ensure
remedial measures properly implemented. |
1. Submit
proposals for remedial to AR within three working days of notification; 2. Implement
the agreed proposals; 3. Amend proposal
if appropriate. |
|
Limit Level |
||||
|
Exceedance for one sample |
1. Identify
source, investigate the causes of exceedance and propose remedial measures; 2. Inform IEC,
AR, Contractor 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 AR
informed of the results. |
1. Check
monitoring data submitted by ET; 2. Check
Contractor’s working method; 3. Discuss with
ET and Contractor on possible remedial measures; 4. Advise the
AR 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
Contractor; 3. Ensure remedial
measures properly implemented. |
1. Take
immediate action to avoid further exceedance; 2. Submit
proposals for remedial actions to IEC within three working days of
notification; 3. Implement
the agreed proposals; 4. Amend
proposal if appropriate. |
|
Exceedance for two or more consecutive samples |
1.
Notify IEC, AR, Contractor and EPD; 2.
Identify source; 3.
Repeat measurement to confirm findings; 4.
Increase monitoring frequency to daily; 5.
Carry out analysis of Contractor’s working procedures to determine
possible mitigation to be implemented; 6.
Arrange meeting with IEC and AR to discuss the remedial
actions to be taken; 7.
Assess effectiveness of Contractor’s remedial actions and
keep IEC, EPD and AR informed of the results; 8.
If exceedance stops, cease additional monitoring. |
1.
Discuss amongst AR, ET, and Contractor on the potential
remedial actions; 2.
Review Contractor’s remedial actions whenever necessary to
assure their effectiveness and advise the AR accordingly; 3.
Supervise the implementation of remedial measures. |
1.
Confirm receipt of notification of exceedance in writing; 2.
Notify Contractor; 3.
In consultation with the IEC, agree with the Contractor on
the remedial measures to be implemented; 4.
Ensure remedial measures properly implemented; 5.
If exceedance continues, consider what portion of the work
is responsible and instruct the Contractor to stop that portion of work until
the exceedance is abated. |
1.
Take immediate action to avoid further exceedance; 2.
Submit proposals for remedial actions to IEC within three
working days of notification; 3.
Implement the agreed proposals; 4.
Resubmit proposals if problem still not under control; 5.
Stop the relevant portion of works as determined by the AR
until the exceedance is abated. |
Table 2-3 Event and Action Plan for Air Quality
2.8.1
During the operation
of the new crematorium, chimney emission is anticipated to be the major
environmental concern. Respirable
Suspended Particulates (RSP), carbon monoxide (CO), hydrogen chloride (HCl),
mercury (Hg), organic compounds and dioxins may be generated from the cremation
process. The cremators in the new
crematorium shall be equipped with the latest technology flue gas filtering and
emission monitoring system that meets the emission requirements stipulated in “A
Guidance Note on the Best Practicable Means for Incinerators (Crematoria)
BPM12/2 (September 2006)” (BPM12/2). The results of air quality impact
assessment reveal that the air quality at the nearby Air Sensitive Receivers
(ASRs) will be in compliance with the relevant air quality guidelines and there
will be no odour nuisance from the new Crematorium. Furthermore, by limiting joss paper burning activities
through administration procedures, nuisance arising from joss paper burning is
anticipated to be negligible.
2.8.2
To ensure
compliance with legislation, the conditions and the continuous monitoring
stipulated in BPM12/2 shall be carried out.
2.8.3
Necessary
monitoring equipment and techniques shall be provided and used to demonstrate
that the process is properly operated and the emissions meet the air pollution
control requirements. The scope, manner and frequency of the monitoring shall
be sufficient for this purpose and shall be determined by EPD. Monitoring results shall be recorded in
a manner specified by EPD. The
record shall be retained at the premises for a minimum of two years, or other
period specified by EPD, after the date of last entry and be made available for
examination as and when required by EPD.
2.8.4
The following
parameters shall be monitored and recorded continuously or periodically:
Process and Waste Gas Continuous Monitoring
§ Temperature inside the primary combustion zone;
§ Temperature and oxygen content of the gas at the appropriate location(s) to demonstrate that the requirements set out in the paragraphs 4.2.2 to 4.2.3 of BPM12/2 can be complied with;
§ Carbon monoxide concentration at the outlet from the secondary combustion zone;
§ Gas opacity at the chimney of the cremator; and
§ Other essential operating parameter(s) that may affect the performance of air pollution control measures.
On-line Monitoring
§ The continuous monitoring data referred above shall be transmitted instantaneously to EPD by telemetry system or the real time and logged monitoring data shall be accessible by EPD in such manner and format agreed with EPD.
Periodic Measurement
§
Periodic measurements of RSPparticulates,
HCl, CO, gaseous and vaporous organic substances, HgG
and dioxins shall be made to confirm the compliance with the emission limits
set out in Annex I of BPM12/2. The sampling frequency shall be determined by
EPD. All measurement results shall
be recorded, processed and presented in a summary report as agreed by EPD. The
report shall be submitted to EPD within reasonable time(s) to be agreed with
EPD after the source sampling(s) as required is / are completed.
2.8.5
The monitoring
equipment to be used shall meet the specifications specified by EPD. They shall
be maintained and calibrated according to the manufacturer's
recommendations. Unless otherwise
agreed by EPD, zero and span checks shall be carried out every 24 hours and
recorded.
Regular quality control check on the continuous emission monitoring equipment
in every six months shall also be conducted.
2.8.6
The instruments
for gas opacity monitoring shall be fitted with audible and visual alarms which
shall activate at a trigger level agreed with EPD. Emission events which lead
to the alarms being activated shall be properly recorded in such manner and
format agreed with EPD. These instruments shall be checked regularly to ensure
that they are functioning correctly in accordance with the manufacturer's
instructions.
2.1.1
Smoke
emission from cremator during the normal operations (including start-up and
shut down) shall not, when compared in the appropriate manner with the
Ringlemann Chart or an approved device, appear to be as dark as or darker than
Shade 1 on the Ringlemann Chart.
2.8.7
2.8.8 The monitoring of the above air pollutants shall comply with the requirements of BPM and the future Specified Process License of the New Crematorium, to be issued by EPD under the APCO.
2.1.1
2.9.1 The following mitigation measures shall be implemented for the construction phase:
Site Boundary and Entrance
§ Vehicle washing facilities including a high pressure water jet shall be provided at every designated vehicle exit point; and
§ The area at which vehicle washing takes place and the section of the road between the washing facilities and the exit point shall be paved with concrete, bituminous or hardcore material.
Access Haul Roads and Unpaved Areas
§ Each and every main haul road shall be paved with concrete, bituminous hardcore materials or metal plates, and kept clear of dusty materials; and
§ Unpaved haul roads and areas shall be sprayed with water so as to keep the entire road surface wet.
Excavated Materials
§ Any stockpile of dusty material shall be either: (a) covered entirely by impervious sheeting; (b) placed in an area sheltered on the top and the three sides; or (c) sprayed with water or a dust suppression chemical so as to maintain the entire surface wet.
Exposed Earth
§ Exposed earth shall be properly treated by compaction, hydroseeding, vegetation planting or seating with latex, vinyl, bitumen within six months after the last construction activity on the site or part of the site where the exposed earth lies.
Loading, Unloading or Transfer of
Dusty Materials
§ All dusty materials shall be sprayed with water immediately prior to any loading or transfer operation so as to keep the dusty material wet.
Debris Handling
§ Any debris shall be covered entirely by impervious sheeting or stored in a debris collection area sheltered on the top and the three sides; and
§ Before debris is dumped into a chute, water shall be sprayed so that it remains wet when it is dumped.
Transport of Dusty Materials
§ Vehicles used for transporting dusty materials / spoils shall be covered with tarpaulin or similar material. The cover shall extend over the edges of the sides and tailboards.
Site Clearance
§ The working area for the uprooting of trees, shrubs, or vegetation or the removal of boulders, pole, pillars shall be sprayed with water immediately before, during and immediately after the operation so as to maintain the entire surface wet; and
§ All demolished items shall be covered by impervious sheeting or placed in a spot with shelters on top and three sides within a day of the demolition.
2.9.2
Workers at all
levels shall be co-operative to avoid dust generation and dispersion to the
surrounding environment.
2.9.3 During demolition of the existing crematorium and existing skeletal cremator building, special attention shall be given to the interior deposition of the chimneys, flue gas piping and cremation chambers. Special demolition and handling methods for the contaminated materials shall be adopted to avoid fugitive emission of dioxins and toxic air pollutants.
2.9.4 The cremators of equivalent specifications equipped with the latest technological flue gas filtering and emission monitoring system that meet the BPM12/2 emission requirements shall be adopted for the Project. Moreover, proper operation and maintenance of the new crematorium and air pollution control unit of the cremators shall be ensured in order to avoid any un-controlled emissions due to malfunctioning of the cremator or air pollution control unit.
3.1.1
The noise
assessment indicated that no adverse noise impacts are expected from the either
the construction and operation phases of the Project for existing NSRs. There is only
exceedance to daytime noise criterion during examination periods for
educational institutions should the G/IC zone at NSR2 developed into
educational institutions. Use of
quiet plant is recommended as the mitigation measure. The unmitigated noise levels during operation phase comply
with the relevant noise criteria for all NSRs. Other environmental
mitigation measures including good site practice and proper maintenance of
Powered Mechanical Equipment (PME), as recommended in the EIA Report and
Section 3.2 of this Manual, shall be undertaken to further minimise any
potential noise impacts from the Project.
3.1.2
Regular site
audit, outlined in Section 9 of this Manual, will serve to inspect the
implementation status of the mitigation measures cater for any potential noise
impacts.
3.2.1
Good site practice
and noise management shall readily be applied to achieve additional reduction
to construction noise emissions from daytime construction.
Good Site Practice
§ Only well-maintained plant should be operated on site and the plant should be regularly serviced during the construction works;
§ Plant that is used intermittently, should be turned off or throttled down when not in active use;
§ Plant that is known to emit noise strongly in one direction should be oriented to face away from NSRs;
§ Silencers, mufflers and enclosures for plant should be used where possible and maintained adequately throughout the works;
§ Where possible mobile plant should be sited away from NSRs; and
§ Stockpiles of excavated materials and other structures such as site buildings should be used effectively to screen noise from the works.
3.2.2
Inadequate
maintenance and improper use of the PME will result in a deterioration of the
plant performance and will generate excessive noise. It is the Contractor’s responsibility to maintain and to
ensure good performance of the PME.
Use
of Quiet Plant
3.2.3
Use of quiet plants is recommended as the
mitigation measure during examination periods of the educational institutions
for demolition and site formation of Phase I and demolition of
Phase II should the G/IC zone at NSR2 developed into educational
institutions.
3.2.4 Although it is not anticipated that the NSRs will be impacted by operation noise from the new crematorium, noise from fixed-noise sources can be further reduced by locating them as far as practical from the NSRs within the Site, and / or by orientating the noise emission points away from the NSRs, and / or by the application of silencers, acoustic barriers or enclosures to the concerned equipment.
4.1.1
The Contamination
Assessment Report
(CAR) and Remediation Action Plan (RAP) recommend fFurther
site investigations for areas that are currently in use or cannot presently be accessed
until after
decommissioning of the existing crematorium are recommended. These areas include the transformer room, dangerous goods
stores, day tank room, fuel pump room, sunken fuel pipe and cremator.
4.1.1
As no samples were
collected from BH1 and BH2 as identified in CAR, sampling at these locations
shall also be included in the future Site investigation after decommissioning.
4.1.2
Potential contaminants in the soils have been identified in
CAR. Thus the parameters to be analysed
for the soils at different locations are summarised in Table 4-1Table 4-1Table 4-1Table
4-4.
|
Location |
Parameters |
|
Existing Crematorium |
|
|
Underground fuel
tank (underneath the tank) |
TPH PAH |
|
Dangerous goods
store |
TPH PAH |
|
Daily tank room,
fuel pump room and sunken fuel pipe |
TPH PAH |
|
Cremators
(residual inside the cremator, flue and chimneys) |
PAH Dioxins Metals (Cr, Co, Ni, Cu,
Zn, As, Mo, Cd, Sn, Ba, Hg, Pb) |
|
Transformer room |
Polychlorinated Biphenyls
(PCB) |
|
Skeletal Cremator Building |
|
|
Underground fuel tank (underneath the tank) |
TPH PAH |
|
Dangerous goods
store |
TPH PAH |
|
Cremator
(residual inside the cremator, flue and chimneys) |
PAH Dioxins Metals (Cr, Co, Ni, Cu, Zn,
As, Mo, Cd, Sn, Ba, Hg, Pb) |
Table 4-1114 Testing
Parameters for Future Site Investigation
4.1.3 In accordance with the Interim CAR and Practice Note for Professional Persons (ProPECC) PN 3/94 “Contaminated Land Assessment and Remediation”, the Dutch A, B, C Classification system was used as the assessment criteria for the interpretation of analytical results of soil and groundwater samples.
4.1.4
The underground fuel tanks will be removed during the
demolition phase of the Project.
After removal of the underground fuel tank, soil beneath the
tank shall be inspected by an experienced specialist in order to determine
whether there is any visual or olfactory evidence of contamination due to fuel
leakage. If contamination is
likely, further sample(s) shall be collected from the soil beneath the tank and
the sample(s) should be tested for TPHconfirmatory soil
samples should be collected and tested in accordance with Section 5.7.6
of the EIA Report to ensure that no contamination due to fuel leakage.
4.1.5
The new EPD Guidance Note for Contaminated Land
Assessment and Remediation and RBRGs for soil and groundwater contamination
assessment shall be adopted for any further site investigation to determine the
extent, level, and necessity of soil or groundwater remediation works.
4.1.6
If soil contamination is identified, the extent of
contamination shall be confirmed.
Contaminated soil shall be removed or treated. Confirmatory soil sampling shall be carried out during the
remediation works. It shall
consist of five to six samples in each of the location of where soil
contamination is identified from site investigation works. The locations shall be located to the
north, south, east and west of the location where contaminated soil is
found. Two locations shall also be
above and below the depth where contaminated soil is found. If analytical results exceed Dutch B
Levels or other
agreed remedial target suggested in a supplementary CAR, such as RBRGs,
the contamination area shall be extended and further confirmatory sampling
shall be carried out until no further contamination is encountered.
4.1.7 All further site investigations shall be carried out after the decommissioning of the existing crematorium and skeletal cremator building. Sampling and analysis plans for these investigations shall be prepared and submitted to EPD for approval prior to any of these investigation works. Supplementary CAR and RAP shall be prepared to detail the results and findings of these site investigations and, if any, necessary remedial works. Further site investigations shall be conducted by the demolition contractor.
5.1.1 Wastes likely to be generated during the construction phase of the Project include excavated material; construction and demolition materials; contaminated materials including ash waste and building structures (containing asbestos, dioxin, heavy metals, PAH, TPH and PCB); chemical waste and general refuse.
5.1.2 During the operation phase of the new crematorium, the major types of waste expected to be generated are ash and non-combustible residues generated from the cremators during the combustion process; chemical waste generated from the air pollution control system and machinery maintenance and servicing; and general refuse generated by the visitors and staff during daily operation.
5.1.1
Since the existing crematorium is still in
operation, further contamination investigation in the site areas currently
inaccessible is recommended. This
investigation should occur after decommissioning but prior to demolition of the
Existing Crematorium to confirm the quality and quantity of ash waste and
building structures requiring treatment and disposal.
5.1.3
5.1.4 If good site practices are strictly followed, it is expected that adverse environmental impacts due to waste generation will not arise. Good management and control can prevent the generation of significant amounts of waste. In addition, specific mitigation measures are recommended to minimise environmental impacts during handling, transportation and disposal of wastes generated from the Project. The environmental mitigation measures for waste management during the construction phase as well as during the operation phase are summarised in the following sections.
5.1.5 Site Audit has been recommended during the construction phase. The EIA Study has determined that with effective implementation of the appropriate mitigation measures, there will be no significant impact from these wastes.
Good
Site Practice and Waste Reduction Measures
5.2.1 The following good site practices shall be included in the Contract documents for the Project to minimise waste management impacts:
§ Obtain the necessary waste disposal permits from the appropriate authorities, in accordance with the Waste Disposal Ordinance (Cap. 354), Waste Disposal (Chemical Waste) (General) Regulation and the Land (Miscellaneous Provision) Ordinance (Cap. 28);
§ Obtain a billing account with EPD for disposal of construction waste (Waste Disposal (Changes for Disposal of Construction Waste) Regulation).
§ A Waste Management Plan (WMP), incorporated within an Environmental Management Plan (EMP), shall be prepared and submitted to the Engineer/Supervising Officer for approval. Reference shall be made to Environment, Transport and Works Bureau Technical Circular (Works) (ETWB TCW) 19/2005.
§ Nomination of an approved person to be responsible for good site practice shall take place along with arrangements for collection and effective disposal of all wastes generated at the site to an appropriate facility;
§ Use of a waste haulier authorised or licensed to collect specific category of waste;
§ A trip-ticket system should be included as one of the contractual requirements and implemented by the ET to monitor the disposal of construction and demolition (C&D) material at public filling facilities and landfills, and to prevent fly tipping. Reference shall be made to ETWB TCW No. 31/2004.
§ Training of site personnel in proper waste management and chemical waste handling procedures;
§ Separation of chemical wastes for special handling and appropriate treatment at a licensed facility;
§ Routine cleaning and maintenance programme for drainage systems, sumps and oil interceptors;
§ Provision of sufficient waste disposal points and regular collection for disposal;
§ Adoption of appropriate measures to minimise windblown litter and dust during transportation of waste, such as covering trucks or transporting wastes in enclosed containers;
§ Implementation of a recording system for the amount of wastes generated, recycled and disposed of (including the disposal sites).
5.2.2 Good management and control can prevent the generation of significant amounts of waste. Inclusion of the following practices in the Contract documents is recommended to ensure waste reduction:
§ Segregation and storage of different types of waste in different containers, skips or stockpiles to enhance reuse or recycling of materials and their proper disposal;
§ Encourage collection of aluminium cans, plastic bottles and packaging material (e.g. carton boxes) and office paper by individual collectors. Separate labelled bins should be provided to help segregate this waste from other general refuse generated by the work force;
§ Any unused chemicals or those with remaining functional capacity should be reused as far as practicable;
§ Reuse C&D materials when possible to reduce the amount of C&D material/waste;
§ Wood, steel and other metals should be separated for reuse and / or recycling prior to disposal as C&D waste at landfill;
§ Minimise the potential for damage or contamination of construction material by having proper storage and site practices;
§ Plan and stock construction materials carefully to minimise the amount of surplus materials.
5.2.3 In addition to the above good site practices and waste reduction measures, specific mitigation measures are recommended below to minimise environmental impacts during handling, transportation and disposal of wastes generated from the Project.
Excavated
Materials
5.2.4 Rock and soil generated from excavation shall be reused for site formation and excavated material from foundation work reused for landscaping as far as practicable to avoid disposal off-site. It is envisaged that no surplus of excavated materials will be generated for disposal from the Project aside of any unsuitable materials, such as asbestos and unless significant volumes of contaminated soils are detected.
Construction
and Demolition Materials
5.2.5 Reuse of public fill and C&D waste shall be practiced on site as far as practicable.
5.2.6 The handling of C&D materials is governed by Works Branch Technical Circular No. 2/93, Public Dumps. Inert C&D material (public fill) shall be directed to an approved public filling area or reclamation site.
5.2.7 The Land (Miscellaneous Provision) Ordinance requires that individuals or companies who deliver public fill to public filling areas require dumping licences. The Civil Engineering and Development Department (CEDD) under delegated powers from the Director of Lands issue these licenses.
5.2.8 Careful design, planning and good site management can minimise over-ordering and generation of materials, such as concrete, mortar and cement grouts. The design of formwork should maximise the use of standard wooden or metal panels so that high reuse levels can be achieved. Alternatives such as steel formwork, plastic fencing and reusable site office structures shall be considered to increase the potential for reuse and minimise C&D waste generation.
5.2.9 The Contractor shall use as much of the C&D material as possible on-site. Proper segregation of waste types on site will increase the feasibility of certain components of the waste stream by recycling contractors.
Contaminated
Materials
5.2.10
After decommissioning, but prior to demolition, of the
existing crematorium, further contamination investigation should be carried out
to confirm the composition and quantity of ash waste and any building structures
requiring treatment and disposal. Future contamination investigation
requirements are summarised in Table 5-1Table 5-1Table 5-1Table
5-5 and described below.
|
Location |
Investigation Parameter |
Investigation Period |
Responsible Party |
|
Cremators/flue/chimney and surrounding areas |
Asbestos (building structures) |
After
decommissioning but prior to demolition of the |
Contractor |
|
Cremators/flue/chimney and surrounding areas |
Dioxins, heavy metals, PAH (ash waste) |
Table 5-1115 Future
Contamination Investigation Requirements
5.2.11
The incense burner, coffin and skeletal crematorium were still
operational during the asbestos assessment and could not be adequately
inspected or sampled. These areas
contain materials suspected to contain asbestos containing materials (ACM) and
are detailed in the Asbestos Investigation Report (AIR) (as shown in Annex 3-9 i of the EIA
Report).
5.2.12 Prior to any demolition work commencing, areas suspected to contain ACM shall be further inspected by a registered asbestos consultant to determine the presence of any ACM. These areas shall be thoroughly investigated and the additional findings submitted as supplementary information to the AIR.
5.2.13 Samples shall be analysed for the presence and type of asbestos according to testing procedures of a HOKLAS-accredited laboratory. If the findings of the investigation indicate ACM materials present on the premises an Asbestos Abatement Plan must be prepared prior to commencement of demolition works.
5.2.14
It is not currently possible to conduct inspection and
sampling within the cremators, chimney and flues to assess the levels of
contamination due to the operation of the crematorium. Therefore , it is
recommended that samples shall be collected from the potential areas of
contamination for testing of dioxin, heavy metal and PAH after decommissioning
and prior to the demolition of the Existing Crematorium.
Asbestos
5.2.15 Asbestos wastes shall be handled in accordance with the Code of Practice on the Handling, Transportation and Disposal of Asbestos Waste issued by the Environment and Food Bureau.
5.2.16 Production, collection and disposal of asbestos waste will follow the ‘trip-ticket’ system. The registered asbestos contractor shall appoint a licensed asbestos waste collector to collect the packaged asbestos waste and deliver it to the designated landfill for disposal.
5.2.17 Since asbestos is listed in Part A of Schedule 1 to the Waste Disposal (Chemical Waste) Regulation, notification shall be given to EPD prior to its disposal. EPD will normally require ten working days notice of the intention to dispose of any quantity of asbestos waste. After processing the notification, EPD will issue specific instructions and directions for disposal of the waste. The waste producer or his agent must strictly follow these directions.
Dioxin
Contaminated Materials (DCM) / Heavy Metal Contaminated Materials (HMCM) /
Polyaromatic Hydrocarbon Contaminated Materials (PAHCM) from Demolition of the
Existing Crematorium
5.2.18
Different contamination classifications based on the levels of
DCM / HMCM / PAHCM in ash waste are proposed in Table 5‑2Table 5‑2Table 5‑2Table
5‑6 and the corresponding mitigation measures for their
handling, transportation, treatment and disposal are described in the
subsequent paragraphs.
|
Classification of Contamination |
Dioxin Level in ash waste |
Heavy Metal Level / Polyaromatic Hydrocarbon in Ash Waste |
|
Low Contaminated DCM/HMCM/PAHCM |
<1 ppb TEQ |
< Dutch “B” List |
|
Moderately/Severely Contaminated HMCM/PAHCM |
<1 ppb TEQ |
> Dutch “B” List |
|
Moderately Contaminated DCM |
> 1 and < 10 ppb TEQ |
Any Level |
|
Severely contaminated DCM |
>10 ppbTEQ |
Any Level |
Table
5‑2226
Proposed
contamination Classification for Ash Waste with DCM/HMCM
Demolition, Handling, Treatment and Disposal of Low Contaminated DCM / HMCM / PAHCM from Demolition of Existing Crematorium
5.2.19 Where the ash waste contains low contaminated DCM / HMCM / PAHCM, the contractor shall avoid ash waste becoming airborne during demolition. General dust suppression measures shall be followed. The ash waste can be directly disposed of at a landfill site.
Demolition, Handling, Treatment and Disposal of Moderately / Severely Contaminated DCM and Moderately / Severely Contaminated HMCM / PAHCM from Demolition of the Existing Crematorium
5.2.20 Site preparation procedures:
§ Except for the cremators/flue/chimney, all removable contaminated items shall be removed as far as practicable to avoid obstructing the decontamination activities.
§ Preliminary site decontamination of all debris shall be carried out using a High Efficiency Particulate Air (HEPA) vacuum cleaner.
§ A chamber with three layers of polyethene sheets shall enclose the top portion of the chimney above the roof.
§
A three3-chamber
decontamination unit shall be constructed at the entrance to the
cremators/flues/chimney for entry and exit from the work area. It shall
comprise a dirty room, a shower room and a clean room of at least 1m x 1m base
with 3three layers of fire retardant polyethene
sheet.
§ Workers shall carry out decontamination procedures before leaving the work area.
§ All workers should wear full protective equipment, disposable protective overalls, nitrile gloves, rubber boots, and a full-face positive pressure respirator.
§ Warning signs in both Chinese and English shall be put up in conspicuous areas.
5.2.21 Site preparation procedures specific to severely contaminated DCM:
§
The walls, floor and ceiling of the cremator room shall
be lined with 3three-layers of fire retardant polyethene
sheets.
§
Air movers shall be installed at the cremator room, and
at the bottom of the chimney to exhaust air from the work area. A stand by air
mover shall also be installed with each of the air movers. Sufficient air
movement shall be maintained to give a minimum of 6 six air
changes per hour to the work area.
§ New pre-filters and HEPA filters shall be used on the air movers.
§ Before commencement of the decommissioning work a smoke test with non-toxic smoke shall be carried out to ensure the air tightness of the containment.
5.2.22 Demolition and handling procedures:
§ The cremators / flue / chimney shall be removed from top down.
§ Scrubbing and HEPA vacuuming shall be used to remove any ash or residues attached to the cremators, flue, chimney and other building structures.
§ Wastes generated from the contaminant or decontamination unit including the workers protection clothing shall be disposed of at landfill site.
§ After completion of removal, all surfaces shall be decontaminated by HEPA vacuum cleaner.
§ If any contaminated wastewater needs to be discharged from the site, it shall be properly treated to Water Pollution Control Ordinance requirements with prior agreements with EPD on discharge standards.
5.2.23 Demolition and handling procedures specific to severely contaminated DCM:
§
The contaminated detached sections of the building
structures shall be wrapped with two2
layers of fire retardant polyethene sheets. A third layer shall be wrapped and
secured with duct tape. Wet wiping shall be used to decontaminate the outer
layer.
§
After completion of removal and decontamination, spray
the innermost layer of the fire retardant polyethene sheet with PVA. Upon drying, peel off and dispose of at
landfill site. Repeat for the
other 2two layers disposing the final layer as
contaminated wastes.
5.2.24 Treatment and disposal procedures:
§ Immobilise the ash waste by mixing with cement in the correct ratio as determined by pilot mixing and Toxicity Characteristic Leaching Procedure (TCLP).
§ Place material in polyethene lined steel drums for disposal at landfill. The drums shall clearly be marked with “DANGEROUS CHEMICAL WASTE” in English and Chinese. Prior agreement of the disposal criteria must be obtained from EPD and the landfill operator.
§ If the landfill disposal criteria cannot be met, disposal at the Chemical Waste Treatment Centre (CWTC) shall be considered.
Other Chemical
Wastes
5.2.25 Should any chemical waste be generated, the contractor must register with EPD as chemical waste producer. These types of waste will be readily accepted for disposal at the CWTC.
5.2.26 All the chemical waste shall be handled according to the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes. The chemical waste shall be stored and collected by an approved contractor for disposal at a licensed facility in accordance with the Waste Disposal (Chemical Waste) (General) Regulation.
5.2.27 Principles of reuse and recycling chemical waste on site as far as practicable shall be adopted by the Contractor.
5.2.28 Containers used for the storage of chemical waste shall:
§ Be suitable for the substance they are holding, resistant to corrosion, maintained in good condition, and securely closed;
§ Have a capacity of less than 450 litres unless the specifications have been approved by EPD; and
§ Display a label in English and Chinese in accordance with instructions prescribed in Schedule 2 of the Waste Disposal (Chemical Waste) (General) Regulation.
5.2.29 The storage area for chemical waste shall:
§ Be clearly labelled and used solely for the storage of chemical waste;
§ Be enclosed on at least three sides;
§ Have an impermeable floor and bunding, of capacity to accommodate 110% of the volume of the largest container or 20% by volume of the chemical waste stored in that area, whichever is the greatest;
§ Have adequate ventilation;
§ Be covered to prevent rainfall entering (water collected within the bund must be tested and disposed as chemical waste if necessary); and
§ Be properly arranged so that incompatible materials are adequately separated.
5.2.30 Disposal of chemical waste shall be:
§ Via a licensed waste collector; and
§ A facility licensed to receive chemical waste, such as the CWTC, which offers a chemical waste collection service and can supply the necessary storage containers; or
§ A waste recycling facility approved by EPD.
General Refuse
5.2.31 General refuse shall be stored in enclosed bins or compaction units separate from C&D and chemical wastes. A reputable waste collector shall be employed by the Contractor to remove general refuse from the site, separately from C&D and chemical wastes, on a daily or every second day basis to minimise odour, pest and litter impacts.
5.2.32 Individual collectors often recover aluminum cans from the waste stream if these are segregated or easily accessible. Therefore, separately labelled bins for their deposit should be provided if feasible. Similarly, plastic bottles and carton package material generated on site shall be separated for recycling as far as possible. Site office waste shall be reduced through recycling of paper if volumes are large enough to warrant collection. Participation in a local collection scheme shall be considered if one is available.
Ash and
Non-combustible Residues
5.2.33
The disposal of bone ash and non-combustible residues shall be
properly collected and handled to avoid dust emissions. In line with the
current practices, bone ash will be stored in robust plastic bags to be
collected by the deceased’s relatives within the first two2
months free of charge (charge will be levied on subsequent months) and the
non-combustible residues will be collected in polyethene bags and disposed of
to landfill.
Chemical Wastes
5.2.34 All the chemical wastes arising from the air pollution control system, machinery maintenance and servicing shall be collected by drum type container and removed by the licensed chemical waste contractor under the provisions of the Waste Disposal (Chemical Waste) (General) Regulations and in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.
General Refuse
5.2.35 The general refuse shall be separated from any chemical wastes and stored in covered waste skips. Food and Environmental Hygiene Department (FEHD) shall remove general refuse from the site, separately from chemical wastes, on daily basis to minimise odour, pest and litter impacts. Burning of refuse shall be strictly prohibited.
5.2.36 Waste generated in offices shall be reduced through segregation and collection of recyclable waste materials (such as paper and carton packages) if the volumes are large enough to warrant collection. Participation in a local collection scheme shall be considered if one is available.
5.2.37 To promote recycling of waste paper, aluminium cans and plastic bottles by the visitors clearly labelled recycling bins should be placed at convenient locations within the new crematorium. A reliable waste-recycling agent shall be used to collect the items on a regular basis.
6.1.1
EM&A shall be undertaken throughout the
construction phase of the Project to monitor the landscape and visual
conditions. The following sections outline the requirements.
6.2.1
Environmental audit shall be undertaken bi-weekly for
the construction phase of the Project to ensure all the implementation of
landscape and visual mitigation measures are carried out. Conflicts between the
proposed landscape and visual mitigation measures and other project works
should be resolved at the earliest possible date without compromise to the
mitigation intentions of these measures.
6.2.2
Baseline conditions with respect to the landscape and
visual environment shall be reviewed with reference to the recorded baseline conditions
of the site as described in Sections 7.5 and 7.7 of the EIA Report. The review
shall in particular record existing conditions and changes of each landscape
resource, landscape character area and the view conditions of each visually
sensitive receiver, including glare. Parameters used to describe changes in
each of the above shall be the same as in Sections 7.6 and 7.8 the EIA Report.
6.3.1
Table 6-1Table 6-1Table 6-1Table
6-7 summarises the mitigation measures recommended in the
EIA Report catering for minimising any potential landscape and visual impacts
arising during the construction phase.
|
Environmental Protection Measures |
Location / Timing |
Implementation Agent |
Implementation Stage* |
Relevant Legislation & Guidelines |
|||
|
D |
C |
O |
|||||
|
S.7.9.2
MC 1 |
Site offices and construction yards: §
Site offices shall have olive green roof and façade
coating or colour matches with existing environment; and §
Site offices and the construction yard shall be
decommissioned after construction. |
All site offices / Design and construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.2 MC 2 |
Height of site offices: §
The height of site offices, including the rooftop shall
not exceed 10m; and §
Building services equipment such as antennas may exceed 10
m and shall be coated in black. |
All site offices / Design and construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.2 MC 3 |
Hoarding and screening: §
Where practical the site offices areas,
construction yards and storage areas shall be screened using colour in
harmony with the surrounding environment around the peripheries of the works
area until the completion of relevant construction phases. |
All site offices and construction yard areas / Design and
construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.2 MC 4 |
Construction plant and building material: §
Shall be orderly and carefully stored in order to
appear neat and avoid visibility from outside where practical; §
Excess materials shall be removed from site as
soon as practical; and §
All construction plants shall be removed from site
upon completion of construction works. |
Works site / Design and construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.2 MC 5 |
Construction light: §
To be oriented away from the viewing location of
Visual Sensitive Receivers (VSRs); and §
All lighting facing sensitive receiver shall have
frosted diffusers and reflective covers. |
All construction lights / Design and construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.2 MC 6 |
Silting trap §
Silting traps shall be installed to minimize
silting to streams. |
Streams / Construction phase |
ArchSD’s Contractor |
|
Ö |
|
|
|
S.7.9.3 MT 1 |
§
Compensation for losses: §
The tree compensation to tree loss ratio shall be
at least 1:1 in term of quantity. § About 100 trees will be planted to
compensate for the loss of 54 trees.
100 trees will be planted on site and others, in locations within the
vicinity approved by the Architect. |
Within
the Wo Hop Shek Crematorium |
ArchSD’s Contractor |
Ö |
Ö |
|
ETWB TCW No. 2/2004 ETWB TCW No. 3/2006 |
|
S.7.9.3 MT 2 |
|
Work site / Design and construction phases |
ArchSD’s Contractor |
Ö |
Ö |
|
ETWB TCW No. 2/2004 ETWB TCW No. 3/2006 |
|
S.7.9.3 MT 3 |
Amenity planting: §
Planting works shall be carried out under the
supervision of a specialist landscape sub-contractor; §
The rooftop of the cremation plant room shall be
planted with lawn; §
Open spaces shall be included in the Project; §
Screen planting such as planting a roll of trees
along the site boundary butting Kiu Tau Road shall be carried out; and §
New trees, shrubs and groundcover shall be
carefully selected and designed to homogenize with the environment. |
As shown on mitigation measure plans / All phases |
ArchSD’s & FEHD’s
Contractor |
Ö |
Ö |
Ö |
ETWB 2/2004 |
|
S.7.9.3 MT 4 |
Woodland mix planting: §
Woodland mix, comprising of tree seedlings and
shrubs, shall be planted within the Wo Hop Shek Cemetery to enhance the
ecological value and compensatory of tree loss. |
Within
the Wo Hop Shek Cemetery / All phases |
ArchSD’s Contractor |
Ö |
Ö |
|
ETWB TCW No. 2/2004 ETWB TCW No. 3/2006 |
|
S.7.9.3 MT 5 |
Preservation: §
No tree shall be transplanted or felled without
prior approval by relevant Government departments; §
All trees that are marked for retention shall be
fenced off with a 1.2m high fence around the dripline of trees or larger area
as far as feasible; §
Transplant preparation works shall be carried as
soon as possible after commencement of construction. Over-pruning such as
hard pruning of tree crown, pollarding or topping shall be avoided. Rootball and crown pruning shall be
carried out over at least 3 months; and §
Existing shrub and ground cover planting areas
that will not be removed shall be maintained in good condition and enhanced
where practical. |
Work site / All phases |
ArchSD’s Contractor |
Ö |
Ö |
|
ETWB TCW No. 2/2004 ETWB TCW No. 3/2006 |
|
S.7.9.4 MB 1 |
§
The 10m height headroom cremation plant room shall
be half sunken to reduce the visual impact to pedestrians. |
Cremation plant room / Design phase |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.4 MB 2 |
§
The chimney shall be designed to have sculptural
outlook and articulated. It shall also be kept in proportion with the
rest of the building. |
Chimney / Design phase |
ArchSD’s Contractor |
Ö |
Ö |
|
|
|
S.7.9.4 MB 3 |
§
The chimney stacks shall be designed to locate at
the least conspicuous location of the site to VSRs. |
Chimney
/ Design phase |
ArchSD’s Contractor |
Ö |
Ö |
|
|
Table 6-1117 Implementation
Schedule for Landscape and Visual
7.1.1
The water
quality assessment indicated that no adverse impacts on water quality would be expected
from the construction phase, with proper implementation of the environmental
mitigation measures recommended in Section 8.7 of the EIA Report and Section
7.2 of this Manual. Besides, with
the adoption of the ‘dry’ process, no effluent would be discharged from the air
pollution control system and scrubbing system in the new crematorium and hence
no adverse water quality impacts to the nearby receiving water body would be
anticipated during the operation phase.
7.1.2
Water quality monitoring
for construction and operation phases shall be confined to the relevant
effluent discharge licensing requirements to be issued by EPD under the Water
Pollution Control Ordinance (WPCO).
No additional monitoring is required.
7.1.3
Regular site
audit, outlined in Section 9 of this Manual, will serve to inspect the
implementation status of the mitigation measures and ensure that any potential
water quality impacts are detected and dealt with.
7.2.1 The Contractor shall implement the following recommended mitigation measures with reference to the Practical Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94) published by EPD to minimise any potential water quality impacts arising during the construction phase.
Construction Runoff and Drainage
7.2.2 Any effluent discharge from the Site is subject to the control of the WPCO discharge licence. Wastewater shall properly be treated to meet the discharge standards set out in the relevant discharge licence. No direct discharge of site runoff into the two streams shall be allowed.
§ Perimeter channels shall be provided to intercept storm runoff from outside the Site. These shall be constructed in advance of site formation works and earthworks;
§ Sand/silt removal facilities such as sand traps, silt traps and sediment basins shall be provided to remove sand/silt particles from runoff to meet the requirements of the Technical Memorandum standard under the WPCO;
§ Works shall be carefully programmed to minimise soil excavation works during rainy seasons;
§ Exposed soil surface shall be protected by paving as soon as possible to reduce the potential of soil erosion;
§ Temporary access roads shall be protected by crushed gravel and exposed slope surfaces shall be protected when rainstorms are likely to occur;
§ Trench excavation shall be avoided in the wet season as far as practicable, and if necessary, these trenches shall be excavated and backfilled in short sections;
§ Open stockpiles of construction materials on the site shall be covered with tarpaulin or similar fabric during rainstorms;
§ Sand and silt in the wash water from the wheel from the wheel washing facility shall be settled out and removed before discharge into the storm drain; and
§ Oil interceptors shall be included in the drainage system and regularly emptied to prevent the release of oil and grease into the storm drainage system after accidental spillage.
General Construction Activities
7.2.3
Debris and rubbish generated on site shall be
collected, handled and disposed of properly to avoid it entering the two
streams. All fuel tanks and
storage areas shall be provided with locks and be sited on sealed areas, within
bunds of a capacity equal to 110% of the storage capacity of the largest
tank. Open storm water drains and
culverts near the works area shall be covered to block the entrance of large
debris and refuse.
7.2.4 The sewage from construction work force shall be handled by portable chemical toilets if the existing toilets are not adequate. Appropriate and adequate portable toilets shall be provided by licensed contractors who shall be responsible for appropriate disposal and maintenance of these facilities.
7.2.5 It is possible an unknown quantity of groundwater or perched water may be encountered and this will require pumping out during construction works, particularly for basement formation during Phase I. Sheet piling shall be provided at suitable location around the basement excavation to reduce the effect of lowering the water table from any dewatering process. Any discharge of groundwater pumped out from any dewatering process of the construction works shall be treated to comply with the standards set in the relevant discharge licence prior discharge. No discharge of the groundwater shall be allowed into the two streams.
8.1.1
The assessment
determined that the main ecological concern is vegetation clearance and
disturbance within the semi-natural woodland. The works area within the semi-natural woodland would amount
to approximately 0.25 ha. Within this habitat, two shrub/treeplant species of
conservation interest, namely Aquilaria sinensis and Cibotium
barometz, were identified.
8.1.2
Regular site audit,
detailed in Section 9 of this Manual, will serve to inspect the implementation
status of the mitigation measures recommended in the EIA Report.
8.1.3
General EM&A requirements concerning
transplantation of the two species of conservation interest are recommended.
Monitoring of tree transplantation should be undertaken as detailed below.
8.1.1
Mitigation
measures including good site practice will help minimise the ecological impacts
likely to be induced by the Project.
8.1.4
General
EM&A requirements concerning transplantation of the two species of
shrub/trees of conservation interest, are also recommended
in this Manual.
8.2.1
The
implementation of mitigation measures recommended in the Section 9 of the EIA
Report shall be routinely audited, once per week, during the construction phase
of the Project. Detailed
requirements of the environmental audit are given in Section 9 of this Manual. Implementation
of the recommended ecological mitigation measures, detailed in Section 9.8 of
the EIA Report and Section 8.3 of this Manual, shall be examined during the
routine environmental audit.
8.2.2
At the
detailed design stage, individual trees requiring transplantation or
protection, shall be reviewed based on the information illustrated in the Tree
Survey Report as shown in Annex 7-b of the EIA Report. Details shall include numbers of trees
to be transplanted, transplantation methodology, measures for the individuals
to be protected ‘in-situ’ and availability of the recommended receptor sites.
8.2.3 The transplantation shall be carried out by a suitably qualified ecologist / horticulturist appointed by the Project Proponent. Measures to protect plants ‘in-situ’ shall be implemented prior to commencement of works.
8.2.4 For any transplantation of Aquilaria sinensis and Cibotium barometz individuals, regular monitoring shall be conducted to check on the health and conditions of the plants. It is recommended that the monitoring shall cover the 12-month period following transplantation. The monitoring shall be conducted at least twice a month for the first four months after transplantation, and once a month for the remaining eight months. The monitoring shall be conducted by a suitably qualified ecologist / horticulturist appointed by the Project Proponent. If the audit records indicate that the transplanted plants are not establishing properly, the Landscape Architect shall recommend and undertake measures to rescue the plants.
8.3.1 The following mitigation measures are recommended to minimise any potential ecological impacts arising during the construction phase.
Mitigation to Minimise Impacts on Habitat
and Vegetation Loss
§ Layout of the Project shall be carefully designed to avoid or minimize the area of habitat loss and the numbers of trees to be felled;
§ All trees shall be preserved as far as possible, especially species of conservation concern. Recommendations provided in the Tree Survey Report to mitigate impacts on trees shall be followed;
§
Disturbance to the two shrub / tree plant species
of conservation concern, namely Aquilaria sinensis and Cibotium
barometz, shall be avoided.
Where removal of these species is unavoidable, it is recommended to
transplant them to habitats with similar conditions. Following transplantation, regular monitoring of these trees
plants
shall be conducted by a suitable qualified botanist / horticulturist over
a 12-month period;
§
Transplantation of any affected trees to grassland /
scrubland within the Wo Hop Shek Cemetery; and
§
Compensatory planting of the felled trees shall follow
the Technical Circular No. 3/2006 issued by ETWB.
Mitigation to Construction Runoff through General Good Site Practice
§ Temporary access to the work sites shall be carefully planned and located to minimise disturbance caused to the streams and nearby habitats;
§ Use of less or smaller construction plant may be specified to reduce disturbance to the streams and nearby habitats;
§ The Site inside or in the proximity of the streams and nearby habitats shall be temporarily isolated, by placing of sandbags or silt curtains with lead edge at the bottom and properly supported props, to prevent adverse impacts on these areas;
§ Natural bottom and existing flow in the streams shall be preserved as much as possible to avoid disturbance to the stream habitats;
§ Appropriate storage locations situated well away from the streams and nearby habitats for the temporary storage of materials (e.g. equipment, filling materials, chemicals and fuel) and temporary stockpile of construction debris and spoil shall be identified before commencement of the works;
§ Stockpiling of construction materials, if necessary, shall be properly covered and located away from the streams and nearby habitats;
§ Construction debris and spoil shall be covered up and/or properly disposed of as soon as possible to avoid being washed into the streams and nearby habitats by rain;
§ Construction effluent, site runoff and sewage shall be properly collected and/or treated;
§ Proper locations for discharge outlets of any wastewater treatment facilities well away from the streams and nearby habitats shall be identified;
§ Vehicles and other plant shall be carefully maintained and properly used to minimise the chance for accidental spillage;
§ Any spillages that do occur shall be quickly identified and appropriately cleaned up before they can contaminate streams or groundwater;
§ Temporary geo-textile silt fences around earth moving works shall be erected to trap any sediments being washed away and prevent them from entering surrounding areas; and
§ Exposed soil or other loose materials shall be covered with tarpaulins to prevent erosion, and then seeded and covered with a biodegradable geo-textile blanket for erosion control purposes.
Mitigation for Noise and Other Disturbance on Ecological Integrity
§ Use of sturdy 1.8 metres protective fencing shall be located at the edge of the tree canopy but not around the trunk, wherever feasible;
§ Works beneath the tree canopy shall be avoided: If encroachment under the canopy area is unavoidable, adequate protections shall be provided to ensure no damage to any part of the tree occurs due to the encroachment;
§
Any tree transplanting and planting works shall be
implemented by an approved Landscape Contractor. Quality control of the work shall be undertaken by a
qualified Landscape Architect through site inspectionaudits and
approval of works;
§ Construction works shall be restricted to works area which are clearly defined;
§ Woodland or other habitats that would be affected by the construction works shall be well-defined and minimised;
§ Human interference to habitats beyond the site boundary and habitats proposed to be retained shall be avoided by providing temporary barricades;
§ Works area shall be reinstated immediately after completion of the construction;
§ Waste and other garbage generated during the construction of the proposed development shall be disposed of properly off-site; and
§ Uncontrolled burning of refuse shall be strictly prohibited. Appropriate fire control measures shall be provided in order to protect nearby habitats.
9.1.1
Site inspectionaudit provides
a direct means to initiate and enforce specified environmental protection and
pollution control measures. InspectionAudits shall
be undertaken routinely to inspect construction activities in order to ensure
that appropriate environmental protection and pollution control mitigation
measures are properly implemented.
Site inspectionaudit is one
of the most effective tools to enforce the environmental protection
requirements within the works area.
9.1.2
The ET Leader
shall be responsible for formulating the environmental site inspectionaudit, the
deficiency and action reporting system, and for carrying out the site inspectionaudit
works. Within 21 days of the construction
contract commencement, he shall submit a proposal for site inspectionaudit and
deficiency and action reporting procedures to the Contractor for agreement, and
to the AR for approval. The ET’s
proposal for rectification shall be agreed with the IEC.
9.1.3
Regular site inspectionaudits shall
be carried out at least once per week.
The scope of inspectionaudit shall
not be limited to the environmental situation, pollution control and mitigation
measures within the site; it shall also review the environmental situation
outside the works 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 inspectionaudit:
§ EIA recommendations on environmental protection and pollution control mitigation measures;
§ Works progress and programme;
§ Individual works methodology proposals (which shall include pollution control measures);
§ Contract specifications on environmental protection;
§ Relevant environmental protection and pollution control laws; and
§
Previous site inspectionaudit results.
9.1.4
The Contractor
shall keep the ET Leader updated with all relevant information on the
construction contract necessary for him to carry out the site inspectionaudits. InspectionAudit results
and associated recommendations for improvements to the environmental protection
and pollution control works shall be submitted to the IEC and the Contractor
within 24 hours after completion of the site inspectionaudit. The Contractor shall follow the
procedures and time-frame as stipulated in the environmental site inspectionaudit, and the
deficiency and action reporting system formulated by the ET Leader, to report
on any remedial measures subsequent to the site inspectionaudits.
9.1.5
Ad hoc site inspectionaudits shall
also be carried out if significant environmental problems are identified. InspectionAudits may
also be required subsequent to receipt of an environmental complaint, or as part
of the investigation work, as specified in the Event and Action Plan provided
in Table 2-3Table 2-3Table 2-3Table
2-3.
9.2.1
There are contractual
environmental protection and pollution control requirements as well as
environmental protection and pollution control laws in Hong Kong with which
construction activities must comply.
9.2.2
In order that the
works are in compliance with the contractual requirements, all works method
statements submitted by the Contractor to the AR for approval shall be sent to
the ET Leader for vetting to see whether sufficient environmental protection
and pollution control measures have been included.
9.2.3
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 laws can be prevented.
9.2.4
The Contractor
shall regularly copy relevant documents to the ET Leader so that works checking
can be carried out. The document
shall at least include the updated Works Progress Reports, updated Works
Programme, any application letters for different licence / permits under the
environmental protection laws, and copies of all valid licences / permits. The site diary shall also be available
for the ET Leader's inspectionaudit upon his
request.
9.2.5
After
reviewing the document, the ET Leader shall advise the IEC and the Contractor
of any non-compliance with contractual and legislative requirements on
environmental protection and pollution control in order for them to take
follow-up action. 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 result in potential violation of environmental protection and
pollution control requirements, he shall also advise the Contractor and the AR
accordingly.
9.2.6 Upon receipt of the advice, the Contractor shall undertake immediate action to correct the situation. The AR shall follow up to ensure that appropriate action has been taken by the Contractor in order to satisfy contractual and legal requirements.
9.3.1 Complaints shall be referred to the ET Leader for action. The ET Leader shall undertake the following procedures upon receipt of any complaint:
§ Log complaint and date of receipt onto the complaint database and inform the IEC immediately;
§ Investigate the complaint to determine its validity, and 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 if mitigation measures are required;
§ Review the Contractor's response to the identified mitigation measures, and the updated situation;
§ If the complaint is transferred from EPD, submit interim report to EPD on status of the complaint investigation and follow-up action within the time frame assigned by EPD;
§ Undertake additional monitoring and audit to verify the situation if necessary, and review that circumstances leading to the complaint do not recur;
§ Report investigation results and subsequent actions to complainant (if the source of complaint is transferred from EPD, the results shall be reported within the timeframe assigned by EPD); and
§ Record the complaint, investigation, the subsequent actions and the results in the monthly EM&A reports.
10.1.1
The ET Leader
shall prepare and certify the EM&A Reports in accordance with the following
reporting requirements. The
following report requirements are based upon a paper documented approach,
however, the same information can be provided in an electronic form 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 and proactive approach.
10.1.2
The types of reports
that the ET Leader shall prepare and submit include baseline monitoring report,
monthly EM&A report, quarterly EM&A summary report and final EM&A
review report. In accordance with
Annex 21 of the EIAO-TM, a copy of the monthly, quarterly summary and final
review EM&A reports shall be made available to the Director of
Environmental Protection.
10.2.1
The ET
Leader shall prepare and submit a Baseline Environmental Monitoring Report
within 10 working days of completion of the baseline monitoring. Copies of the Baseline Environmental
Monitoring Report shall be submitted to the Contractor, the IEC, the AR and
EPD. The ET Leader shall liaise
with the relevant parties on the exact number of copies they require. The report format and baseline
monitoring data format shall be agreed with EPD prior to submission.
10.2.2
The baseline
monitoring report shall include at least the following:
(i)
Up to half a page executive summary;
(ii) Brief Project
background information;
(iii) An updated construction
programme with milestones of environmental protection / mitigation activities
annotated;
(iv) Drawings showing
locations of the baseline monitoring stations;
(v) Monitoring results (in
both hard and diskette copies) together with the following information:
§ Monitoring methodology;
§ Name of laboratory and types of equipment used and calibration details;
§ Parameters monitored;
§ Monitoring locations;
§ Monitoring date, time, frequency and duration; and
§ Quality assurance (QA) / quality control (QC) results and detection limits;
(vi) Details of influencing factors, including:
§ Major activities, if any, being carried out on the site during the period;
§ Weather conditions during the period; and
§ Other factors which might affect the monitoring results;
(vii) Determination of the
Action and Limit Levels for each monitoring parameter and statistical analysis
of the baseline data;
(viii) Revisions for
inclusion in the EM&A Manual; and
(ix) Comments,
recommendations and conclusions.
10.3.1
The results and findings of all EM&A work required
by the Manual shall be recorded in the monthly EM&A reports prepared by the
ET Leader. 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 no later than two months after construction
commences. Each monthly EM&A
report shall be submitted to the following parties: the Contractor, the IEC,
the AR and EPD. Before submission
of the first EM&A report, the ET Leader shall liaise with the parties on
the required number of copies and format of the monthly reports in terms of
hard copy and / or electronic format.
10.3.2
The ET leader shall review the number and location of
monitoring stations and parameters every six months, or on as needed basis, in
order to cater for any changes in the surrounding environment and the nature of
works in progress.
First Monthly EM&A
Report
10.3.3
The first monthly EM&A report shall include at
least the following:
(i) Executive summary (1-2 pages):
§ Breaches of Action and Limit levels;
§ Complaint log;
§ Notifications of any summons and successful prosecutions;
§ Reporting changes; and
§ Future key issues.
(ii) Basic Project information:
§ Project organisation including key personnel contact names and telephone numbers;
§ Construction programme with fine tuning of construction activities showing the inter-relationship with environmental protection / mitigation measures for the month;
§ Management structure; and
§ Work undertaken during the month.
(iii) Environmental status:
§ Work undertaken during the month with illustrations (such as location of works, percentage of fines in the fill material used, etc); and
§ Drawings showing the Project area, any environmental sensitive receivers and the locations of the monitoring and control stations (with co-ordinates of the monitoring locations).
(iv) 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 for the Project; and
§ Environmental requirements in Contract documents.
(v) Implementation status:
§ Advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the EIA Report for the Project, summarized in the updated implementation schedule.
(vi) Monitoring results (in both hard and diskette copies) together with the following information:
§ Monitoring methodology;
§ Name of laboratory and types of equipment used and calibration details;
§ Parameters monitored;
§ Monitoring locations;
§ Monitoring date, time, frequency, and duration;
§ Weather conditions during the period;
§ Graphical plots of the monitored parameters in the month annotated against;
§ The major activities being carried out on site during the period;
§ Weather conditions that may affect the results;
§ Any other factors which might affect the monitoring results; and
§ QA/QC results and detection limits.
(vii) Report on non-compliance, complaints, and notifications of summons and successful prosecutions:
§ Record of all non-compliance (exceedances) with the Action and Limit levels);
§ 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, results and summary;
§ Record of all notification of summons and successful prosecutions for breaches of current environmental protection / pollution control legislation, including locations and nature of the breaches, investigation, follow-up actions taken, results and summary;
§ Review of the reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution sources and working procedures; and
§ Description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.
(viii) Others
§ An account of the future key issues as reviewed for the works programme and work method statements;
§ Advice on the solid and liquid waste management status; and
§ Summary on the implementation status of environmental mitigation measures, proactive environmental mitigation measures, environmental licensing and permits status, environmental monitoring schedule and complaint log summarising the EM&A of the period.
Subsequent EM&A
Reports
10.3.4
Subsequent monthly EM&A reports shall include the
following:
(i) Executive summary (1 - 2 pages):
§ Breaches of Action and Limit levels;
§ Complaints log;
§ Notifications of any summons and successful prosecutions;
§ Reporting changes; and
§ Future key issues.
(ii) Basic Project information:
§ Project organisation including key personnel contact names and telephone numbers;
§ Programme;
§ Management structure; and
§ Work undertaken during the month.
(iii) Environmental status:
§ Work undertaken during the month with illustrations (such as location of works, daily excavation rate, etc.); and
§ Drawing showing the Project area, any environmental sensitive receivers and the locations of the monitoring and control stations.
(iv) Implementation status:
§ Advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the EIA Report for the Project, summarised in the updated implementation schedule.
(v) Monitoring results together with the following information:
§ Monitoring methodology;
§ Name of laboratory and types of equipment used and calibration details;
§ Parameters monitored;
§ Monitoring locations;
§ Monitoring date, time, frequency, and duration;
§ Weather conditions during the period;
§ Graphical plots of the monitored parameters in the month annotated against;
§ The major activities being carried out on site during the period;
§ Weather conditions that may affect the results;
§ Any other factors which might affect the monitoring results; and
§ QA / QC results and detection limits.
(vi) Report on non-compliance, complaints, and notifications of summons and successful prosecutions:
§ Record of all non-compliance (exceedances) with the Action and Limit levels;
§ Record of all complaints received (written or verbal), including locations and nature of complaints, liaison and consultation undertaken, actions and follow-up procedures taken, results and summary;
§ Record of all notification of summons and successful prosecutions for breaches of current environmental protection / pollution control legislation, including locations and nature of the breaches, investigation, follow-up actions taken, results and summary;
§ Review of the reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution sources and working procedures; and
§ Description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.
(vii) Others
§ An account of the future key issues as reviewed from the works programme and works method statements;
§ Advice on the solid and liquid waste management status; and
(viii) Appendix
§ Action and Limit levels;
§ Graphical plots of trends of monitored parameters at key stations over the past four reporting periods for representative monitoring stations annotated against the following:
§
Major activities being carried out on site during the
period;
§
Weather conditions during the period; and
§
Any other factors that might affect the monitoring results.
§ Monitoring schedule for the present and next reporting period;
§ Cumulative statistics on complaints, notifications of summons and successful prosecutions;
§ Outstanding issues and deficiencies; and
§ Details of complaints, outstanding issues and deficiencies.
10.4.1
A quarterly EM&A summary report of around five pages
(consisting of about three of text and tables and two of figures) shall be
produced and shall contain at least the following information. The quarterly EM&A report shall be
prepared and submitted within 10 working days of the end of each reporting quarter.
(i) Executive summary (half page);
(ii) Basic Project
information including a synopsis of the Project organisation, programme,
contacts of key management, and the work undertaken during the quarter;
(iii) A brief summary of EM&A requirements including:
§ Monitoring parameters;
§ Environmental quality performance limits (Action and Limit levels); and
§ Environmental mitigation measures, as recommended in the EIA Report for the Project;
(iv) Advice on the
implementation status of environmental protection and pollution control /
mitigation measures, as recommended in the EIA Report for the Project,
summarised in the updated implementation schedule;
(v) Drawings showing the
Project area, any environmental sensitive receivers and the locations of the monitoring
and control stations;
(vi) Graphical plots of
any trends of monitored parameters over the past four months (the last month of
the previous quarter and the present quarter) for representative monitoring
stations annotated against the following:
§ The major activities being carried out on site during the period;
§ Weather conditions during the period; and
§ Any other factors which might affect the monitoring results;
(vii) Advice on the solid
and liquid waste management status;
(viii) A summary of
non-compliance (exceedances) with the Action and Limit levels;
(ix) A brief review of the
reasons for and the implications of any non-compliance, including a review of
pollution sources and working procedures;
(x) A summary description
of actions taken in the event of non-compliance and any follow-up procedures
related to any earlier non-compliance;
(xi) A summarised record
of all complaints received (written or verbal), liaison and consultation
undertaken, actions and follow-up procedures taken;
(xii) A summary record of
notification of summons and successful prosecutions for breaches of the current
environmental protection / pollution control legislations, locations and nature
of the breaches, investigation, follow-up actions taken and results;
(xiii) Comments (e.g.
effectiveness and efficiency of the mitigation measures), recommendations (e.g.
any improvement in the EM&A programme) and conclusions for the quarter; and
(xiv) Proponents' contacts
and any hotline telephone number for the public to make enquiries.
10.5.1
The
termination of EM&A programme shall be determined on the following basis:
§ Completion of construction activities and insignificant environmental impacts of the remaining outstanding construction works;
§ Trends analysis to demonstrate the reduction of monitoring exceedances due to construction activities and the return to ambient environmental conditions comparable with baseline data; and
§ No unsolved environmental complaint and prosecution.
10.5.2
The
proposed termination may be subject to consultation with related local
community such as village representative / committee and / or District Board
and the proposal shall be endorsed by the IEC, AR and the Project Proponent
prior to final approval from EPD.
10.5.3
The final EM&A report shall include, inter alia,
the following information:
(i) Executive summary (1 - 2 pages);
(ii) Drawings showing the
Project area, any environmental sensitive receivers and the locations of the
monitoring stations;
(iii) Basic Project
information including a synopsis of the Project organisation, contacts of key
management, and the work undertaken during the entire construction period;
(iv) A brief summary of
EM&A requirements including:
§ Monitoring parameters;
§ Environmental quality performance limits (Action and Limit levels); and
§ Environmental mitigation measures, as recommended in the EIA Report for the Project;
(v) Advice on the
implementation status of environmental protection and pollution control /
mitigation measures, as recommended in the EIA Report for the Project,
summarised in the updated implementation schedule;
(vi) Graphical plots of
the trends of monitored parameters over the construction period for
representative monitoring stations annotated against the following:
§ The major activities being carried out on site during the period;
§ Weather conditions during the period;
§ Any other factors which might affect the monitoring results; and
§ The return of ambient environmental conditions in comparison with baseline data;
(vii) Compare and contrast
the EM&A data with the EIA predictions and annotate with explanation for
any discrepancies;
(viii) Provide clear-cut
decisions on the environmental acceptability of the Project with reference to
the specific impact hypothesis;
(ix) Advice on the solid
and liquid waste management status;
(x) A summary of
non-compliance (exceedances) with the Action and Limit levels;
(xi) A review of the
reasons for and the implications of non-compliance including review of
pollution sources and working procedures as appropriate;
(xii) A description of the
actions taken in the event of non-compliance and any follow-up procedures
related to earlier non-compliance;
(xiii) A summary record of
all complaints received (written or verbal), liaison and consultation
undertaken, actions and follow-up procedures taken;
(xiv) Review the monitoring
methodology adopted and with the benefit of hindsight, comment on its
effectiveness (including cost effectiveness);
(xv) A summary record of
notifications of summons and successful prosecutions for breaches of the
current environmental protection / pollution control legislation, locations and
nature of the breaches, investigation, follow-up actions taken and results;
(xvi) A review of the
practicality and effectiveness of the EIA process and EM&A programme (e.g.
effectiveness and efficiency of the mitigation measures). Recommendation of any
improvement in the EM&A programme; and
(xvii) A conclusion to state
the return of ambient and / or the predicted scenario as per EIA findings.
10.6.1
No site-based documents (such as monitoring field records,
laboratory analysis records, site inspectionaudit forms,
etc.) are required to be included in the monthly EM&A reports. However, any such document shall be
kept by the ET Leader and be ready for inspection upon request. All relevant
information shall be clearly and systematically recorded in the document. Monitoring data shall also be recorded
in electronic form, and the software copy must be available upon request. Data format shall be agreed with
EPD. All documents and data shall
be kept by the ET Leader for at least one year following completion of the
construction Contract.
10.7.1
With reference to the Event and Action Plan in Table 2-3Table 2-3Table 2-3Table
2-3, when the environmental quality performance limits
are exceeded, the ET Leader shall immediately notify the AR, the IEC and EPD,
as appropriate. The notification
shall be followed up with advice to EPD on the results of the investigation,
proposed actions and success of the actions taken, with any necessary follow-up
proposals. A sample template for
the interim notifications is presented in Appendix DAppendix DAppendix DAppendix
D.
10.8.1 Electronic copies of all reports shall be prepared in Hyper Text Markup Language (HTML) (version 4.0 or later) and in Portable Document Format (PDF version 4.0 or later), unless otherwise agreed by EPD and shall be submitted to the AR and to EPD with the hard copies. For the HTML version, a content page capable of providing hyperlink to each section and sub-section of these reports shall be included in the beginning of the document. Hyperlinks to all figures, drawings and tables in these reports shall be provided in the main text from where the respective references are made.
Note: * D = Design, C = Construction, O =
Operation
Appendix B EM&A
Organisation |
|
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Environmental Team
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Appendix C Air Quality Monitoring Field
Log Sheet |
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TSP Monitoring – Sample Data Sheet
|
Monitoring Location |
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Details of Location |
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Sampler Identification |
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Date & Time of Sampling |
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Elapsed-time Meter Reading |
Start (min.) |
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Stop (min.) |
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Total Sampling Time (min.) |
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Weather Conditions |
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Site Conditions |
|
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|
Initial Flow Rate, Qsi |
Pi (mmHg) |
|
|
Ti (°C) |
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|
Hi (in.) |
|
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|
Qsi (Std.
m3) |
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|
Final Flow Rate, Qsf |
Pf (mmHg) |
|
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Tf (°C) |
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Hf (in.) |
|
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|
Qsf (Std.
m3) |
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Average Flow Rate (Std.
m3) |
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Total Volume (Std.
m3) |
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Filter Identification No. |
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Initial Wt. of Filter (g) |
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Final Wt. of Filter (g) |
|
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|
Measured TSP Level (mg/m3) |
|
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|
|
Name
& Designation |
Signature |
Date |
|
Field Operator: |
|
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Laboratory Staff: |
|
|
|
Appendix D Sample
Template for
|
|
|
Incident Report on Action Level or Limit Level Non-compliance
|
Project |
|
|
Date |
|
|
Time |
|
|
Monitoring Location |
|
|
Parameter |
|
|
Action & Limit Levels |
|
|
Measured Level |
|
|
Possible reason for Action or Limit Level Non-compliance |
|
|
Actions taken / to be taken |
|
|
Remarks |
|
Prepared by: ____________________
Designation: ____________________
Signature: ____________________
Date: ____________________
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