1 Introduction.. 1
1.1 Background.. 1
1.2 Project Scope and Location.. 1
1.3 Designated Project. 1
1.4 Construction Programme. 2
1.5 Purpose of the Manual. 2
1.6 Project Organization.. 3
2 Air
Quality.. 5
2.1 Introduction.. 5
2.2 Mitigation Measures. 5
2.3 Monitoring Requirements. 5
2.4 Audit Requirements. 15
3 Water
Quality.. 16
3.1 Introduction.. 16
3.2 Mitigation Measures. 16
3.3 Monitoring Requirements. 16
3.4 Audit Requirements. 25
4 Ecology.. 26
4.1 Introduction.. 26
4.2 Mitigation Measures. 26
4.3 Monitoring and Audit Requirements for Terrestrial
Ecology. 26
4.4 Monitoring and Audit Requirements for Marine Ecology. 27
5 Fisheries. 28
5.1 Introduction.. 28
5.2 Mitigation Measures. 28
6 Landscape
and Visual Impacts. 29
6.1 Introduction.. 29
6.2 Mitigation Measures. 29
6.3 Baseline Review for Landscape Impact. 29
6.4 Audit Requirements. 29
7 Hazard
to Life.. 31
7.1 Introduction.. 31
7.2 Mitigation Measures. 31
7.3 Audit Requirements. 31
8 Landfill
Gas Hazard.. 32
8.1 Introduction.. 32
8.2 Mitigation Measures. 32
8.3 Monitoring and Audit Requirements. 32
9 Waste
Management Implications. 35
9.1 Introduction.. 35
9.2 Mitigation Measures. 35
9.3 Audit Requirements. 35
10 Land
Contamination.. 36
10.1 Introduction.. 36
10.2 Mitigation Measures. 36
10.3 Audit Requirements. 36
11 Noise.. 37
11.1 Introduction.. 37
11.2 Mitigation Measures. 37
11.3 Audit Requirements. 37
12 Site
Environmental Audit. 38
12.1 Site Inspection.. 38
12.2 Environmental Compliance. 38
12.3 Choice of Construction Method.. 39
12.4 Environment Complaints. 39
12.5 Event and Action Plan.. 40
13 Reporting. 42
13.1 General. 42
13.2 Baseline Monitoring Report. 42
13.3 Monthly Monitoring Report. 43
13.4 Final EM&A Review Reports. 46
13.5 Data Keeping. 48
13.6 Interim Notifications of Environmental Quality Limit
Exceedances. 49
List of TABLES
Table 2.1.... Construction
Dust Monitoring Locations. 7
Table 2.2.... Summary
of Construction Dust Monitoring Programme. 9
Table 2.3.... Action
and Limit Levels for Air Quality (Dust). 9
Table 2.4.... Event
and Action Plan for Air Quality (Dust). 9
Table 2.5.... Emission
Limit for CHP Unit. 11
Table 2.6.... Analytical
Parameters and Methods. 11
Table 2.7.... Odour
Intensity Levels. 13
Table 2.8.... Action
and Limit Levels for Air Quality (Odour). 13
Table 2.9.... Event
and Action Plan for Air Quality (Odour). 14
Table 3.1.... Proposed
River Water Quality Monitoring Stations. 17
Table 3.2.... Proposed
Marine Water Quality Monitoring Stations in Victoria Harbour. 18
Table 3.3.... Proposed
Marine Water Quality Monitoring Stations in Tolo Harbour and Tolo Channel 20
Table 3.4.... Event
and Action Plan for THEES Maintenance and Emergency Discharge. 22
Table 8.1.... Actions
in the event of LFG being detected in excavations. 33
Table 12.1. Event
and Action Plan.. 40
List
of Figures
Figure 1.1 Project
Location Plan
Figure 2.1 Proposed
Air Quality Monitoring Locations for Construction Dust Monitoring
Figure 3.1 Proposed
River Water Quality Monitoring Stations in Kai Tak River
Figure 3.2 Proposed
Marine Water Quality Monitoring Stations in Victoria Harbour
Figure 3.3 Proposed
Marine Water Quality Monitoring Stations in Tolo Harbour and Tolo Channel
list
of Appendices
Appendix A Project
Organization for Environmental Works
Appendix B Project
Implementation Schedule
Appendix C Data
Sheet for TSP Monitoring
Appendix D Odour
Complaint Registration Form
Appendix E Water
Quality Monitoring Data Record Sheet
Appendix F Proactive
Environmental Protection Proforma
Appendix G Sample
Template for Interim Notification
1
Introduction
1.1.1
Drainage Services Department (DSD) appointed
Binnies Hong Kong Limited (the consultants) to undertake the consultancy
“Agreement No. CE 50/2019 (DS) Upgrading of Tai Po Sewage Treatment Works -
Investigation” on 31 March 2020. The scope of the consultancy includes the
carrying out an Environmental Impact Assessment (EIA) study for the Project.
1.1.2
The existing Tai Po Sewage Treatment Works
(TPSTW) is located within Tai Po Industrial Estate (TPIE) and has undergone
various stages of extension since it was first commissioned in 1979. Currently, the
existing TPSTW is a secondary treatment works with a design capacity of
120,000 m3 per day, in Average Dry Weather Flow (ADWF), serving
TPIE, Tai Po, Lam Tsuen and Ting Kok areas. Based on the latest flow records,
the existing TPSTW is already operating close to its design capacity.
1.1.3
This EM&A Manual is a working document which
will be reviewed periodically and updated if necessary
during the implementation of the Project.
1.2.1
The scope of the Project is to upgrade the
existing TPSTW from 120,000
m3 per day to 160,000 m3 per day in
ADWF, with a view to meeting the future needs of Tai Po District, and allowing
provision to utilize and co-digest sludge from TPSTW, other existing and
proposed sewage treatment works (STW) in New Territories and pre-treated food
waste from the adjoining Organic Waste Pre-treatment Centre (OWPC) (New
Territories East).
1.2.2
The Project mainly comprises the following
works:
(a)
Construction
and operation of new treatment facilities, modification / demolition of
existing treatment facilities of TPSTW;
(b)
Providing
effluent reuse facilities to provide reclaimed water for non-portable use
within the Project site; and
(c)
Providing
co-digestion facilities for imported sewage sludge and pre-treated food waste.
1.2.3
Owing to the space limitation within the
existing TPSTW and in order to maintain the sewage
treatment services of the existing TPSTW, which is almost fully utilized, a
piece of government land to the south of the existing TPSTW (1.6 hectares) is
identified as the proposed expansion site for the Project. The location plan of the Project is shown in Figure
1.1.
1.3.1
The Project consists of the following Designated
Projects (DPs) under Part I, Schedule 2 of the Environmental Impact Assessment
Ordinance (EIAO):
n Item F.1 -
Sewage treatment works with an installed capacity of more than 15,000 m3
per day;
n Item F.4 - An
activity for the reuse of treated sewage effluent from a treatment plant;
n Item D.1 – A
public utility electricity power plant; and
n Item D.2 – A
public utility gas generation plant.
1.4.1
In order to
maintain normal sewage treatment services of the existing TPSTW during the
construction phase, a New West Plant will be built in the proposed expansion
site outside the existing TPSTW boundary.
The New West Plant will be a relatively compact STW and able to provide
adequate sewage treatment capacity to meet the projected sewage flow buildup
before the normal treatment services of the existing West Plant of TPSTW is
decommissioned for re-development.
1.4.2
The construction works of this Project are
tentatively scheduled to commence in 2025 for completion in 2036. Majority of the demolition works in the
existing West Plant of TPSTW will be carried out from 2029 to 2033 after the
New West Plant in the proposed expansion site is in operation.
1.5.1
The purposes of this Environmental Monitoring
and Audit (EM&A) Manual are to:
n Guide the
set-up of an EM&A programme to ensure compliance with the EIA recommendations;
n Specify the
requirements for monitoring equipment;
n Propose
environmental monitoring points, monitoring frequency, etc.;
n Propose Action
and Limit Levels; and
n Propose Event
and Action Plans.
1.5.2
This Manual outlines the monitoring and audit
programme for the construction and operation of the proposed Project and
provides systematic procedures for monitoring, auditing
and minimizing environmental impacts.
1.5.3
Hong Kong environmental regulations and the Hong
Kong Planning Standards and Guidelines (HKPSG) have served as environmental
standards and guidelines in the preparation of this Manual. In addition, this
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).
1.5.4
This Manual contains the following information:
n Responsibilities
of the Contractor, the Engineer or Engineer’s Representative (ER),
Environmental Team (ET), and the Independent Environmental Checker (IEC) under
the context of EM&A;
n Project
organization for the EM&A works;
n The basis for,
and description of the broad approach underlying the EM&A programme;
n Details of the
methodologies to be adopted, including all laboratories and analytical
procedures, and details on quality assurance and quality control programme;
n The rationale
on which the environmental monitoring data will be evaluated and interpreted;
n Definition of
Action and Limit Levels;
n Establishment
of Event and Action Plans;
n Requirements
for reviewing pollution sources and working procedures required in the event of
non-compliance with the environmental criteria and complaints; and
n Requirements
for presentation of environmental monitoring and audit data and appropriate
reporting procedures.
1.5.5
For the purpose of this
manual, the ER shall refer to the Engineer as defined in the Construction
Contract, in cases where the Engineer’s powers have been delegated to the ER,
in accordance with the Construction Contract. The ET leader, who shall be
responsible for and in charge of the ET, shall refer to the person delegated
the role of executing the EM&A requirements.
1.6.1
The proposed project organization and lines of
communication with respect to environmental protection works are shown in Appendix A.
1.6.2
Only one ET with an ET Leader shall be engaged
for the entire Project at any time. The ET shall conduct the EM&A programme
and ensure the Contractor’s compliance with the Project’s environmental
performance requirements. The ET shall be established by the Project Proponent, or shall be part of the Resident Site Staff of
the Engineer and directly supervised by the Engineer or ER, and shall be an
independent party from the Contractor or the IEC for the Project. The ET shall
be led and managed by an ET leader. The ET leader shall possess at least 7
years of experience in EM&A and/or environmental management.
1.6.3
Only one IEC with a supporting team shall be
directly employed by the Project Proponent for the entire Project at any time.
The IEC shall audit the overall EM&A programme, including the
implementation of all environmental mitigation measures, submissions required
in this Manual, as well as any other relevant submissions required under the
Environmental Permit. The IEC shall be an independent party from the Engineer
or ER, Contractor and the ET for the Project. The IEC shall possess at least 7
years of experience in EM&A and/or environmental management. The IEC shall
report directly to the EPD on matters relating to the EM&A programme and
environmental impacts from the Project.
1.6.4
The responsibilities of respective parties are:
The
Contractor
n Implement the
EIA recommendations and requirements;
n Provide
assistance to ET in carrying out monitoring and auditing;
n Submit
proposals on mitigation measures in case of exceedances of Action
and Limit Levels in accordance with the Event and Action Plans;
n Implement
measures to reduce impact where Action and Limit Levels are exceeded; and
n Adhere to the
agreed procedures for carrying out compliant investigation.
Environmental
Team (ET)
n Set up all the
required environmental monitoring stations;
n Monitor various
environmental parameters as required in the EM&A Manual;
n Analyse the
EM&A data, review the success of EM&A programme, confirm
the adequacy of mitigation measures implemented and the validity of the EIA
predictions, and to identify any adverse environmental impacts arising;
n Carry out site
inspection to investigate and audit the Contractors’ site practice, equipment
and work methodologies with respect to pollution control and environmental
mitigation measures, take proactive actions to pre-empt problems, and
carry out ad-hoc site inspections if significant environmental problems are identified;
n Audit and
prepare audit reports on the environmental monitoring data and site
environmental conditions;
n Report on the
EM&A results to the IEC, Contractor, the ER and EPD or its delegated representative;
n 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;
n Undertake
regular on-site audits / inspections and report to the Contractor and the ER of
any potential non-compliance;
n Follow up and
close out non-compliance actions; and
n Adhere to
the procedures for carrying out environmental complaint
investigation.
Engineer
or Engineer’s Representative (ER)
n Supervise the
Contractor’s activities and ensure that the requirements in the EM&A Manual
are fully complied with;
n Inform the
Contractor when action is required to reduce impacts in accordance with the
Event and Action Plans;
n Assist the
Project Proponent in employing an IEC to audit the results of the EM&A
works carried out by the ET;
n Comply with the
agreed Event and Action Plans in the event of any exceedance;
n Adhere to the
procedures for carrying out complaint investigations.
Independent
Environmental Checker (IEC)
n Review the
EM&A works performed by the ET (at not less than monthly intervals);
n Audit the
monitoring activities and results (at not less than monthly intervals);
n Validate and
confirm the accuracy of monitoring results, monitoring equipment,
monitoring locations, monitoring procedures and location of sensitive receivers;
n Report the
audit results to the ER and EPD in parallel;
n Review the
EM&A reports (monthly and quarterly summary reports) submitted by the ET;
n Review the
proposal on mitigation measures submitted by the Contractor in accordance with
the Event and Action Plans;
n Check the
mitigation measures submitted by the Contractor in accordance with the Event
and Action Plans;
n Check the
mitigation measures that have been recommended in the EIA Report and this
Manual, and ensure they are properly implemented in a timely manner, when
necessary; and
n Report the
findings of site inspections and other environmental performance reviews to ER
and EPD.
1.6.5
Sufficient and suitably qualified professional
and technical staff shall be employed by the respective parties to ensure full
compliance with their duties and responsibilities, as required under the
EM&A programme for the duration of the Project.
2.1.2
Potential air quality impacts arising from the
operation of the Project have been addressed in the EIA Report. No unacceptable air quality impact during the
operational phase is anticipated with implementation of proposed plant design,
provision of adequate ventilation and appropriate deodorization systems.
Nevertheless, a commissioning test at the exhaust of the Combined Heat and
Power (CHP) as well as Hydrogen Sulphide (H2S) monitoring at the
deodorizers upon commissioning to ascertain the odour removal performance are
recommended. In addition, odour patrol is proposed during the period of
maintenance or cleaning of the deodorization system for the Project.
2.1.3
In this section, the requirements for the
monitoring and audit of air quality impacts arising from the Project are
presented.
2.2.1
Mitigation measures for air quality impacts
during construction and operational phases have been recommended in the EIA
Report. All the recommended mitigation measures and designs are provided in the
implementation schedule in Appendix
B.
Construction Dust Monitoring
2.3.1
Fugitive dust would be generated from
construction activities including site clearance and site formation, demolition
works, excavation works, and wind erosion. Therefore, 1-hour Total Suspended
Particulates (TSP) is recommended to be monitored and audited at the proposed
monitoring locations during construction phase.
2.3.2
One-hour TSP shall be measured to indicate the
impacts of construction dust on air quality. The TSP levels shall be measured
by following the standard high volume sampling method as set out in the Title
40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix
B. Upon approval of the IEC and the
Environmental Protection Department (EPD), 1-hour TSP levels can be measured by
direct reading method which are capable of producing comparable results as that
by the high volume sampling method, to indicate short
event impacts.
2.3.3
All relevant data including temperature,
pressure, weather conditions, elapsed-time meter reading for the start and stop
of the sampler, identification and weight of the filter paper, and any other
local atmospheric factors affecting or affected by site conditions, special phenomena and work progress of the site etc., shall be
recorded down in detail by the ET. A
sample data sheet is shown in Appendix C.
Monitoring Equipment
2.3.4
A high volume sampler
(HVS) in compliance with the following specifications should be used for
carrying out the 1-hour TSP monitoring:
n 0.6 - 1.7 m3
per minute (20 - 60 standard cubic feet per minute) adjustable flow range;
n equipped with a
timing / control device with ± 5 minutes accuracy for 24 hours operation;
n installed with
elapsed-time meter with ± 2 minutes accuracy for 24 hours operation;
n capable of
providing a minimum exposed area of 406 cm2;
n flow control
accuracy: ± 2.5% deviation over 24-hour sampling period;
n equipped with a
shelter to protect the filter and sampler;
n incorporated
with an electronic mass flow rate controller or other equivalent devices;
n equipped with a
flow recorder for continuous monitoring;
n provided with a
peaked roof inlet;
n incorporated
with a manometer;
n able to hold
and seal the filter paper to the sampler housing at horizontal position;
n easy to change
the filter; and
n capable of
operating continuously for 24-hour period.
2.3.5
The ET is responsible for the provision,
installation, operation, maintenance, and dismantling of the monitoring
equipment. They shall ensure that sufficient number of
HVSs with an appropriate calibration kit are available for carrying out the
baseline monitoring, regular impact monitoring and ad hoc monitoring. The HVSs
shall be equipped with an electronic mass flow controller and be calibrated
against a traceable standard at regular intervals. All the equipment,
calibration kit, filter papers, etc., shall be clearly labelled by the ET.
2.3.6
The flow-rate of the
sampler before and after the sampling exercise with the filter in position
shall be verified to be constant and be recorded in the data sheet as mentioned
in Appendix C.
2.3.7
Wind data monitoring equipment shall also be
provided and set up at suitable locations for logging wind speed and wind
direction near the dust monitoring locations. The equipment installation
location shall be proposed by the ET and agreed with the Engineer and the
IEC. For installation and operation of
wind data monitoring equipment, the following points shall be observed.
n The wind
sensors should be installed at 10m above ground so that they are clear of
obstructions or turbulence caused by buildings;
n The wind data should be
captured by a data logger, the data shall be downloaded for analysis at least
once a month;
n The wind data
monitoring equipment should be re-calibrated at least once every six months;
and
n Wind direction
should be divided into 16 sectors of 22.5 degrees each.
2.3.8
In exceptional situations, the ET may propose
alternative methods to obtain representative wind data upon approval from the
Engineer and agreement from the IEC.
Proposal of Use of Portable Direct
Reading Dust Meter
2.3.9
If the ET proposes to use a direct reading dust
meter to measure 1-hour TSP levels, they shall submit sufficient information to
the IEC to prove that the instrument is capable of achieving
a comparable result to the HVS. The instrument should also be calibrated every
year against HVS to check the validity and accuracy of the results measured by
direct reading method.
Laboratory Measurement/Analysis
2.3.10 A
clean laboratory with constant temperature and humidity control,
and equipped with necessary measuring and conditioning instruments to
handle the dust samples collected shall be available for sample analysis,
equipment calibration and maintenance.
The laboratory should be Hong Kong laboratory accreditation scheme
(HOKLAS) accredited.
2.3.11 If
a site laboratory is set up or a non-HOKLAS accredited laboratory is hired for
carrying out the laboratory analysis, the laboratory equipment shall be
approved by the Engineer, in consultation with the IEC. Measurement performed
by the laboratory shall be demonstrated to the satisfaction of the ER and
IEC. The IEC shall regularly audit the
measurement performed by the laboratory to ensure the accuracy of measurement
results. The ET shall provide the
Engineer and the IEC with one copy of the Title 40 of Code of Federal
Regulations, Chapter 1 (Part 50), Appendix
B
for reference.
2.3.12 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-hours and be pre-weighed before use for the sampling.
2.3.13 After
sampling, the filter paper loaded with dust shall be kept in a clean and
tightly sealed plastic bag. The filter paper shall then be returned to the
laboratory for reconditioning in the humidity-controlled chamber followed by
accurate weighing by an electronic balance with readout down to 0.1 mg. The
balance shall be regularly calibrated against a traceable standard.
2.3.14 All
the collected samples shall be kept in a good condition for 6 months before
disposal.
Monitoring Location
2.3.15 The
selected air quality monitoring locations are the worst potentially affected
air sensitive receivers located in the vicinity of construction sites. The
proposed air quality monitoring locations during construction phase are listed
in Table
2.1 below and shown in Figure 2.1.
Table 2.1 Construction
Dust Monitoring Locations
|
ID
|
Air
Sensitive Receiver (ASR) ID
|
Description
|
|
DM-1
|
ASR 3
|
Maxim’s
Food Factory 2
|
|
DM-2
|
ASR 9
|
Tung
Fong Hung
|
|
DM-3
|
ASR 13
|
Taclon
Industrial Ltd.
|
Note:
The monitoring period
is determined based on the tentative construction period of the nearest
worksites within the Project site and will subject to adjustment based on the
actual construction programme of the relevant contracts in the
Construction Stage.
2.3.16 The
status and locations of the air sensitive receivers may change after issuing
this manual. In such case, the ET shall
propose updated monitoring locations and seek approval from ER and the IEC, and
agreement from the EPD on the proposal.
2.3.17 When
alternative monitoring locations are proposed, the following criteria, as far
as practicable, shall be followed:
i.
At the site boundary or
such locations close to the major dust emission source;
ii.
Close to the air sensitive
receivers as defined in the EIAO-TM;
iii.
Proper position/ sitting
and orientation of the monitoring equipment; and
iv.
Take into
account the prevailing meteorological conditions.
2.3.18 The
ET shall agree with the ER in consultation with the IEC on the position of the
HVS for the installation of the monitoring equipment. When positioning the samplers, the following
points shall be noted:
i.
a horizontal platform with
appropriate support to secure the samplers against gusty wind shall be provided;
ii.
the distance between the
sampler and an obstacle, such as buildings, shall be at least twice the height
that the obstacle protrudes above the sampler;
iii.
a minimum of 2 metres of
separation from walls, parapets and penthouses is required for rooftop samplers;
iv.
a minimum of 2 metres of
separation from any supporting structure, measured horizontally is required;
v.
no furnace or incinerator
flue is nearby;
vi.
airflow around the sampler
is unrestricted;
vii.
the sampler is more than 20
metres from the dripline;
viii.
any wire fence and gate, to
protect the sampler, shall not cause any obstruction during monitoring;
ix.
permission must be obtained
to set up the samplers and to obtain access to the monitoring stations;
x.
a secured supply of
electricity is needed to operate the samplers; and
xi.
no two samplers should be
placed less than 2 meters apart.
2.3.19 Before
construction in each month, the corresponding dust monitoring schedule shall be
prepared by the ET based upon the construction schedule provided by the
Contractor. The ET shall forward the IEC
the impact monitoring programme such that he/she can conduct on-site audits to
ensure accuracy of the impact monitoring results.
Baseline Monitoring
2.3.20 The
ET shall carry out the baseline monitoring at all of
the designated monitoring locations for at least 14 consecutive days prior to
the commissioning of major construction works to obtain 1-hour TSP samples. The
selected baseline monitoring stations should reflect baseline conditions at the
impact stations. One-hour sampling should also be done at least 3 times per day
while the highest dust impact is expected.
2.3.21 During
the baseline monitoring, there should not be any major construction or dust
generation activities in the vicinity of the monitoring stations. Before
commencing baseline monitoring, the ET shall inform the IEC of the baseline
monitoring programme such that, if required, the IEC can conduct on-site audit
to ensure accuracy of the baseline monitoring results.
2.3.22 In
case the baseline monitoring cannot be carried out at the designated monitoring
locations during the baseline monitoring period, the ET shall carry out the
monitoring at alternative locations which can effectively represent the
baseline conditions at the impact monitoring locations. The alternative baseline monitoring location
shall be agreed with the Engineer and the IEC, and
approved by the EPD.
2.3.23 In
exceptional cases, when insufficient baseline monitoring data or questionable
results are obtained, the ET 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
Engineer and IEC for approval.
2.3.24 Ambient
conditions may vary seasonally and shall be reviewed once every three
months. If the ET considered that the
ambient conditions have changed and a repeat of the baseline monitoring is
required to be carried out for obtaining the updated baseline levels, the
monitoring should be at times when the Contractor's activities are not
generating dust, at least in the proximity of the monitoring stations. Should change in ambient conditions be
determined, the baseline levels and, in turn, the air quality criteria, should
be revised. The revised baseline levels
and air quality criteria should be agreed with the IEC and the EPD.
Impact Monitoring
2.3.25
The ET shall carry out impact monitoring during
construction phase of the Project. For 1-hour TSP monitoring, the sampling
frequency of at least three times in every six-days should be undertaken when
the highest dust impact occurs. In case
of non-compliance with the air quality criteria, more frequent monitoring, as
specified in the action plan in the following section, should be conducted
within the specified timeframe after the result is obtained. This additional
monitoring should be continued until the excessive dust emission or the
deterioration in the air quality is rectified. The impact monitoring programme
is summarised in Table 2.2.
Table 2.2 Summary of
Construction Dust Monitoring Programme
|
Monitoring Period
|
Duration
|
Sampling Parameter
|
Frequency
|
|
Baseline Monitoring
|
Consecutive days of at least 2 weeks before
commencement of major construction works
|
1-hour
TSP
|
3 times
per day
|
|
Impact Monitoring
|
Throughout the construction phase
|
1-hour
TSP
|
3 times
every 6 days
|
Event and Action Plan – Dust
2.3.26 The
baseline monitoring results form the basis for determining the air quality
criteria for the impact monitoring. The
ET shall compare the impact monitoring results with air quality criteria set up
for 1-hour TSP. Table
2.3 shows the air
quality criteria, namely action and limit levels to be used.
Table 2.3 Action and Limit
Levels for Air Quality (Dust)
|
Parameter
|
Action Level
|
Limit Level
|
|
1-hour
TSP level in µg/m3
|
For baseline level ≤ 384 µg/m3,
action level = (baseline level ´ 1.3 + limit
level)/2
For
baseline level > 384 µg/m3, action level = limit level.
|
500 µg/m3
|
2.3.27 Should
non-compliance of the air quality criteria occur, action in accordance with the
action plan in Table
2.4 shall be carried out.
Table 2.4 Event and Action Plan
for Air Quality (Dust)
|
Event
|
Action
|
|
ET
|
IEC
|
ER
|
Contractor
|
|
Action level exceedance for one
sample
|
1. Identify source, investigate the causes of exceedance and
propose remedial measures;
2. Inform
IEC and ER;
3. Repeat measurement to confirm finding;
4. Increase monitoring frequency to daily.
|
1. Check monitoring data submitted by ET;
2. Check contractor’s working method.
|
1. Notify Contractor.
|
1. Rectify any unacceptable practice;
2. Amend working methods if appropriate.
|
|
Action level exceedance for two or
more consecutive samples
|
1. Identify source;
2. Inform IEC and ER;
3. Advise the ER on the effectiveness of
the proposed remedial measures;
4. Repeat measurements to confirm findings;
5. Increase monitoring frequency to daily;
6. Discuss with IEC and Contractor on
remedial actions required;
7. If exceedance continues, arrange meeting with IEC and ER;
8. If exceedance stops, cease additional monitoring.
|
1. Check monitoring data submitted by ET;
2. Check 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 failure in writing;
2. Notify Contractor;
3. Ensure remedial measures properly implemented.
|
1. Submit proposals for remedial actions to ER within 3 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 ER, 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 ER 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 ER on the effectiveness of the
proposed remedial measures;
5. Supervise implementation of remedial measures.
|
1. Confirm receipt of notification of failure 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 3 working days of notification;
3. Implement the agreed proposals;
4. Amend proposal if appropriate.
|
|
Limit level exceedance for two or more
consecutive samples
|
1. Notify IEC, ER, 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 ER to discuss
the remedial actions to be taken;
7. Assess effectiveness of Contractor’s remedial
actions and keep IEC, EPD and ER informed of the results;
8. If exceedance stops, cease additional monitoring.
|
1. Discuss amongst ER, ET, and Contractor on the
potential remedial actions;
2. Review Contractor’s remedial actions whenever
necessary to assure their effectiveness and advise the ER accordingly;
3. Supervise the implementation of remedial measures.
|
1. Confirm receipt of notification of failure 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 3 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 ER until
the exceedance is abated.
|
Notes:
ET – Environmental Team; IEC – Independent
Environmental Checker; ER – Engineer’s Representative
Commissioning Test at the Exhausts of CHP
unit
2.3.28 Measurement
of air quality parameters of concern due to stack emission from the CHP unit
should be conducted at each stack during commission stage to demonstrate the
process/facility is operated properly and the design emission limits presented
in Table
2.5 can be
achieved. The proposed sampling and analytical methods for the measured
parameters are listed in Table 2.6. The proposed methods are for
reference only. The monitoring scopes and analytical methods to be adopted for
the commissioning tests shall be agreed with EPD before measurement.
Table
2.5 Emission Limit for CHP Unit
|
Parameter
|
Maximum
Emission Level (mg/m3)
|
|
Respirable Suspended Particulates (RSP)
|
10
|
|
Nitrogen Oxides (NOx) (as
Nitrogen Dioxides, NO2)
|
250
|
|
Sulphur Dioxide (SO2)
|
12
|
Table 2.6 Analytical Parameters
and Methods
|
Parameter
|
Method
|
|
Particulates (as RSP)
|
ISO 9096, ASTM D3685-98, USEPA Method 17
|
|
NOx (as NO2)
|
USEPA Method 7 and associated methods
|
|
SO2
|
USEPA Method 8
|
Hydrogen Sulphide Monitoring
2.3.29 The
odour monitoring in term of Hydrogen Sulphide (H2S) concentration at
the inlets and outlets of each deodorizing unit shall be conducted quarterly
using H2S sensor in the first three years upon commissioning to
determine whether the odour removal efficiency of the proposed deodorization
systems meet the requirements specified in the EIA Report (i.e.
99%). The first H2S monitoring shall be conducted within one month
after the commissioning of the deodorizing unit. Subsequent H2S monitoring shall be
conducted quarterly for the first year.
For the second and third years, subject to EPD’s approval, the frequency
of the impact H2S monitoring could be reduced to once every 6 months
provided that no non-compliance is found. If there is any non-compliance, the deodorization
unit should be inspected by the operator and the frequency of H2S
monitoring shall be resumed to quarterly. Upon the
third year of monitoring, the H2S monitoring should be reviewed and
agreed with EPD to determine the need and plan of further monitoring.
Odour Complaint Registration
2.3.30 An
Odour Complaint Registration System is recommended to be included in the
EM&A Programme to assess whether the ASRs experience odour nuisance as a result of emissions from the upgraded TPSTW. For all odour complaints, the procedures for
handling complaints from the public given in DSD Administration Circular No.
4/2009 shall be followed.
2.3.31 In
the event of receipt of odour complaint, the operator shall liaise with the
complainant and a Complaint Registration Form shall be completed. The Complaint Registration Form is to record
detailed information regarding the odour complaint and hence, facilitates
efficient investigation work. The registration
form shall contain, but not be limited to the following information:
n Location of
where the odour nuisance occurred, including whether the odour was experienced
indoors or outdoors;
n Date and time
of the complaint and the nuisance event;
n Description of
the complaint, i.e. the type and characteristics of
the odour; and an indication of the odour strength (highly offensive /
offensive / slightly offensive / just continuously detectable /intermittently
detectable); and
n Name and
contact information of the complainant.
2.3.32 This
information shall be obtained by the plant engineer or his representative(s) of
the TPSTW when the complaint is received. A sample of Odour Compliant
Registration Form is shown in Appendix D.
2.3.33 In
addition, the following information shall be obtained:
n Meteorological
conditions from the Hong Kong Observatory’s Tai Po (Yuen Chau Tsai Park) / Tai
Po Kau Weather Stations (including temperature, wind speed, relative humidity)
at the time of the complaint; and
n Whether any
abnormal operations were being carried out at the upgraded TPSTW at the time
the nuisance occurred.
2.3.34 The
Odour Complaint Register shall be kept at the upgraded TPSTW.
Odour Patrol
2.3.35 Odour
patrol is proposed to monitor the potential odour impact from the upgraded
TPSTW during the period of maintenance or cleaning of the deodorization system.
During the maintenance or cleaning period, the standby odour removal system
will be used. The odour patrols shall be conducted by an odour patrol
team. The odour patrol team shall patrol
and sniff along the upgraded TPSTW site boundary. The implementation of the odour patrols shall
be subject to the prevailing weather forecast condition and should not be
carried out during rainy days.
2.3.36 The
odour patrol team shall be comprised of at least two independent trained
personnel / competent persons, who should pass a set of screening tests and
fulfil the following requirements.
n Have their
individual odour threshold of n-butanol in nitrogen gas in the range of 20 to
80 ppb/v required by the European Standard Method (EN 13725);
n Be at least 16
years of age and willing and able to follow instructions;
n Be free from
any respiratory illnesses;
n Be engaged for
a sufficient period to build up and monitor/detect at the monitoring location;
n Not be allowed
to smoke, eat, drink (except water) or use chewing gum or sweets 30 minutes
before and during odour patrol;
n Take great care
not to cause any interference with their own perception or that of others by
lack of personal hygiene or the use of perfumes, deodorants, body lotions or
cosmetics; and
n Not communicate
with each other about the results of their choices.
2.3.37 The
independent trained personnel / competent persons should use their noses
(olfactory sensors) to sniff odour along the odour patrol route. The main odour emission sources and the areas
to be affected by the odour nuisance shall be identified.
2.3.38 The
perceived odour intensity is divided into 5 levels. The odour
intensity for different levels is presented in Table
2.7.
Table 2.7 Odour Intensity Levels
|
Level
|
Odour Intensity
|
|
0
|
Not detected. No
odour perceived or an odour so weak that it cannot be easily characterised or
described
|
|
1
|
Slight identifiable odour,
and slight chance to have odour nuisance
|
|
2
|
Moderate identifiable odour,
and moderate chance to have odour nuisance
|
|
3
|
Strong
identifiable, likely to have odour nuisance
|
|
4
|
Extreme severe odour, and
unacceptable odour level
|
2.3.39 During
each odour patrol event, the independent trained personnel / competent persons
shall record the findings including date, start and end times, weather
condition (e.g. sunny, fine, cloudy, and rainy), odour
intensity along the patrol route, local wind speed and wind direction. The
odour nature, possible odour sources, date and time shall be recorded at each
section along the upgraded TPSTW site boundary where odour is detected.
Event and Action Plan – Odour
2.3.40 Action
and Limit levels for odour are shown in Table
2.8. Should the action or
limit level be reached, action shall be carried out in accordance with the
Action Plan described in Table
2.9.
Table 2.8 Action and Limit
Levels for Air Quality (Odour)
|
Parameter
|
Action Level
|
Limit Level
|
|
Odour Nuisance
(from odour patrol)
|
Odour intensity of 2 is
measured from odour patrol
|
Odour intensity of 3 or above
is measured from odour patrol
|
|
Odour Complaints
|
Any incidence of odour
complaint received through the Odour Complaint Register
|
Two or more complaints
through the Odour Complaint Register within three months
|
Table 2.9 Event and Action Plan
for Air Quality (Odour)
|
Event
|
Action
|
|
TPSTW Engineer-in-charge of Odour Patrol
|
DSD Sewage Treatment Division 1 (ST1)
|
DSD Sewerage Projects Division (SP) / Electrical and Mechanical
Projects Division (E&MP)
|
|
Action Level
|
|
Action level for Odour Patrol is reached
|
1. Identify source / reason of exceedance;
2. Repeat odour patrol to confirm
finding
|
1. Carry out investigation to identify
the source/reason of exceedance;
2. Rectify
any unacceptable practice;
3. Implement more mitigation measures
if necessary.
|
1. Assist ST1 to find the root cause
of non-compliance; and
2. Modify or improve design as appropriate.
|
|
Receipt of any odour complaint
|
1. Identify source / reason of odour
complaints
|
1.
Carry out investigation to identify the source/reason of complaints.
Investigation shall be completed within 1 week;
2.
Rectify any unacceptable practice;
3.
Amend working methods if required;
4.
Inform DSD SP/E&MP if cause of complaint is considered to be caused by
civil or E&M design problems;
5.
Correspond to the complainant within 10 days to inform the cause of the
nuisance and action taken; and
6.
Implement amended working methods.
|
1.
Assist ST1 to find the root cause of the complaint; and
2. Modify or improve design as appropriate.
|
|
Limit Level
|
|
Limit
level for Odour Patrol is reached
|
1. Identify source / reason of non-compliance;
2. Repeat
odour patrol to confirm findings;
3. Assess
effectiveness of remedial action and keep EPD informed of the results
|
1. Carry
out investigation to identify the source/reason of non-compliance;
2. Rectify
any unacceptable practice;
3. Amended
working methods if required;
4. Notify
DSD SP / E∓
5. Formulate
remedial actions;
6. Ensure
amended working methods and remedial actions properly implemented;
7. If
non-compliance continues, consider what portion of the work is responsible
and stop that portion of the work until the non-compliance is abated.
|
1. Assist
ST1 to find the root cause of non-compliance;
2. Modify
or improve design as appropriate; and
3. Formulate remedial actions in
association with ST.
|
|
Receipt
of two or more dour complaints in 3 months
|
1. Identify source / reason of odour complaints;
2.
Repeat measurements to confirm findings;
3.
Increase monitoring frequency to monthly;
4.
If non-compliance stops, cease additional monitoring.
|
1.
Carry out investigation to identify the source/reason of non-compliance or
complaints. Investigation shall be completed within 1 week;
2.
Rectify any unacceptable practice;
3.
Amended working methods if required;
4.
Notify DSD SP / E∓
5.
Formulate remedial actions;
6.
Ensure amended working methods and remedial actions properly implemented;
7.
If non-compliance continues, consider what portion of the work is responsible
and stop that portion of the work until the non-compliance is abated; and
8.
Correspond to the complainant within 10 days to inform the cause of the
nuisance and action taken.
|
1.
Assist ST1 to find the root cause of the complaint or non-compliance;
2.
Modify or improve design as appropriate; and
3. Formulate remedial actions in
association with ST1.
|
2.4.1
Regular site inspections and audits (at least
once per week) should be conducted by the ET, ER and the Contractor during the
entire construction phase of the Project to ensure the recommended mitigation
measures are properly implemented as detailed in Section 12.
3.1.1
Under the normal operation of the Project and
the Tolo Harbour Effluent Export Scheme (THEES), the treated effluent from the
Project together with the treated effluent from the Sha Tin Cavern Sewage
Treatment Works (CSTW) will be conveyed to Kai Tai River (KTR) for discharge
into the Kai Tak Approach Channel (KTAC) in Victoria Harbour. In addition, effluent from the Project may be
discharged into Tolo Harbour under emergency condition or during the THEES
maintenance period.
3.1.2
According to the EIA Report, no adverse water
quality impact is anticipated with implementation of proposed mitigation
measures during both construction and operational phases. No water quality
monitoring is recommended for the land-based construction works of the Project.
Nevertheless, river water quality monitoring at KTR and marine water quality
monitoring in Victoria Harbour are recommended after the commissioning of the
New West Plant under normal operation of the THEES. Marine water quality
monitoring in Tolo Harbour is also recommended for THEES maintenance and
emergency discharge under both construction and operational phases of the
Project.
3.1.3
Regular environmental site audits are also
recommended to ensure the proper implementation of proposed mitigation measures
during the construction period.
3.1.4
In this section, the requirements for the
monitoring and audit of water quality impacts arising from the Project are
presented.
3.2.1
Mitigation measures for water quality impacts
during construction and operational phases have been recommended in the EIA
Report. All the recommended mitigation measures and designs are provided in the
implementation schedule in Appendix
B.
Effluent
Monitoring for Normal Operation
3.3.1
Effluent quality and effluent flow of the
existing TPSTW and Sha Tin STW (STSTW) are being routinely monitored by the DSD
.
It is recommended that DSD should carry out the same effluent monitoring for
the future upgraded TPSTW and the proposed CSTW. The effluent quality
monitoring data shall be used as necessary for analysis of the river and marine
water quality monitoring data of this Project.
3.3.2
Monitoring of the treated effluent quality from
the Project will also be governed by the Water Pollution Control Ordinance
(WPCO) license to ensure that the effluent quality would comply with the design
standards, which is under the ambit of regional office (RO) of EPD.
River
Water Quality Monitoring for Normal Operation
3.3.3
River water quality monitoring in KTR is
recommended for normal operation of THEES after commissioning of the New West
Plant (see Section 1.4.1). The river water quality data collected from the monitoring
programme should be compared with the routine river water quality monitoring
data collected by EPD to verify whether there is any adverse water quality
impact at KTR as compared to that before the implementation of this Project.
River Water Quality Monitoring Stations
3.3.4
River water quality monitoring shall be carried
out at six (6) EPD’s routine river water monitoring stations along KTR as
listed in Table
3.1.
Table 3.1 Proposed River Water
Quality Monitoring Stations
|
Station
|
Easting
|
Northing
|
|
KN1
|
838745
|
820375
|
|
KN2
|
838771
|
820824
|
|
KN3
|
838525
|
821092
|
|
KN4
|
838296
|
821319
|
|
KN5
|
838072
|
821593
|
|
KN7
|
838396
|
822258
|
3.3.5
Any change to the monitoring stations shall be
justified by the ET Leader, agreed by the ER, verified by the IEC before
seeking approval from EPD prior to the commencement of the monitoring.
River Water Quality Monitoring Parameters and Schedule
Depths of Measurements
3.3.6
Measurements shall be taken at three water
depths, namely, 1 m below water surface, mid-depth and
1 m above riverbed, except where the water depth is less than 6 m, in which
case the mid-depth station may be omitted.
Shall the water depth be less than 3 m, only the mid-depth station will
be monitored.
Monitoring
Programme
3.3.7
River water quality parameters including pH,
salinity, dissolved oxygen (DO), turbidity, suspended solids (SS), 5-day
biochemical oxygen demand (BOD5), chemical oxygen demand (COD),
ammonia nitrogen (NH3-N), nitrate-nitrogen (NO3-N),
unionized ammonia (UIA), total inorganic nitrogen (TIN) and E. coli levels shall be monitored. The
proposed river water quality monitoring schedule shall be submitted to the ER,
IEC and EPD at least four weeks before the first day of the monitoring month.
The ER, IEC and EPD should be notified immediately of any changes in schedule.
Salinity, pH, DO and turbidity shall be measured in-situ whereas SS, BOD5, COD, NH3-N, NO3-N,
UIA, TIN and E. coli shall be
determined by laboratory. Duplicate in-situ
measurements and collection of duplicate water samples for laboratory analysis
should be carried out in each independent sampling event.
3.3.8
A one-year impact water quality monitoring
programme is proposed for KTR at a frequency of once per month after
commissioning of the New West Plant. Where necessary, available effluent
monitoring data of the existing / upgraded TPSTW and the existing STSTW /
future CSTW routinely collected by DSD before and after commissioning of the
New West Plant and during the river monitoring period should be reviewed to
assist in identification of the potential impact.
Marine
Water Quality Monitoring for Normal Operation
3.3.9
Marine water quality monitoring in Victoria
Harbour is recommended for normal operation of the THEES after commissioning of
the New West Plant. The water quality data collected from the monitoring
programme should be compared with the baseline water quality condition to
verify whether there is any adverse water quality impact to water sensitive
receivers in Victoria Harbour.
Marine Water Quality Monitoring Stations
3.3.10 Nine
(9) monitoring stations are proposed for the marine water quality monitoring
for normal operation as listed in Table
3.2. Seven (7) impacts
stations (including four WSD flushing water intakes, two typhoon shelters and
one gradient station) and two (2) control stations (including two EPD monitoring
stations) are proposed. Cooling water intakes are not sensitive to the changes
of water quality and are therefore not covered. The two control stations are
selected in the open water of the main Victoria Harbour channel, which would
not be affected by the disinfected secondary effluent of the Project as
predicted under the Water Quality Impact Assessment for the Project. The
monitoring data collected at the control stations should be used to indicate
any changes of the background water quality in Victoria Harbour. The locations
of the proposed marine water quality monitoring stations in Victoria Harbour
are indicated in Figure
3.2.
Table 3.2 Proposed
Marine Water Quality Monitoring Stations in Victoria Harbour
|
Station
|
Description
|
Easting
|
Northing
|
|
Impact Station
|
|
F1
|
WSD Flushing Water Intake at Cha Kwo Ling
|
841913
|
817691
|
|
F3
|
WSD Flushing Water Intake at Sai Wan Ho
|
841068
|
816501
|
|
F4
|
WSD Flushing Water Intake at Quarry Bay
|
839808
|
817025
|
|
F6
|
WSD Flushing Water Intake at Tai Wai
|
837952
|
818293
|
|
T1
|
To Kwa Wan
Typhoon Shelter
|
838475
|
819373
|
|
T2
|
Kwun Tong
Typhoon Shelter
|
840410
|
818888
|
|
G1
|
Kai Tak
Approach Channel (KTAC) (Gradient Station)
|
839201
|
819767
|
|
Control Station
|
|
VM1
|
EPD Monitoring Station VM1
|
841810
|
816568
|
|
VM5
|
EPD Monitoring Station VM5
|
836092
|
816541
|
3.3.11 The status and locations of water sensitive
receivers may change after issuing this Manual. Any change to the
monitoring stations shall be justified by the ET Leader, agreed by the ER,
verified by the IEC before seeking approval from EPD prior to the commencement
of the monitoring.
Marine Water Quality Monitoring Parameters and Schedule
Depths of Measurements
3.3.12
Measurements shall be taken at three water
depths (i.e. 1 m below water surface, mid-depth and 1
m above seabed), except where the water depth is less than 6 m, for which the
mid-depth station may be omitted. Should
the water depth be less than 3 m, only the mid-depth station will be
monitored.
Baseline
Monitoring
3.3.13 A
one-year baseline monitoring programme is proposed at a frequency of twice per
month covering different tidal states including both wet and dry seasons to
establish the baseline marine water quality conditions under normal operation
of THEES. The baseline monitoring programme should be carried out prior to the
commissioning of the New West Plant.
3.3.14 During
each monitoring event, water samples shall be collected at both mid-flood and
mid-ebb tides. The proposed baseline water quality monitoring schedule should
be submitted to ER, IEC and EPD at least 4 weeks before the first day of the
monitoring month. The ER, IEC and EPD should also be notified immediately for
any changes in schedule. Marine water quality parameters including pH,
salinity, DO, turbidity, SS, BOD5, TIN, NH3-N, UIA and E. coli levels shall be monitored.
Salinity, pH, DO and turbidity shall be measured in-situ whereas SS, BOD5, TIN, NH3-N, UIA and
E. coli shall be determined by
laboratory. Duplicate in-situ
measurements and collection of duplicate water samples for
laboratory analysis should be carried out in each independent sampling event.
3.3.15 The
purpose of the baseline monitoring is to establish ambient conditions without
this Project. The baseline monitoring programme shall be suspended in the
events of any THEES maintenance or emergency discharge during the monitoring
period or if there are other marine construction activities in Victoria
Harbour. The baseline water quality
shall be established and agreed with EPD prior to commissioning of the New West
Plant. In exceptional cases when insufficient baseline monitoring data or
questionable results are obtained, the ET Leader shall seek approval from the
IEC and EPD on an appropriate set of data to be used as baseline reference.
Impact Monitoring
3.3.16
A one-year water quality monitoring programme is
proposed in Victoria Harbour at a frequency of twice per month over the first
year of the New West Plant operation. Where necessary, available effluent data
of the existing / upgraded TPSTW and the STSTW / CSTW routinely collected by
the DSD during the baseline and impact monitoring periods should be reviewed to
assist in identification of the potential impact.
3.3.17 During
each monitoring event, water samples shall be collected at both mid-flood and
mid-ebb tides. Water quality parameters including pH, salinity, DO, turbidity,
SS, BOD5, TIN, NH3-N, UIA, and E.coli shall be measured under
the impact monitoring programme. Salinity, pH, DO and turbidity shall be
measured in-situ whereas SS, BOD5,
TIN, NH3-N, UIA and E. coli
shall be determined by laboratory. Duplicate in-situ measurements and collection of duplicate water samples for
laboratory analysis should be carried out in each independent sampling event.
3.3.18 The
proposed water quality monitoring schedule for impact monitoring should be submitted
to the ER, IEC and EPD at least 4 weeks before the first day of the monitoring
month. The ER, IEC and EPD should be notified immediately of any changes in
schedule.
Review
of Water Quality Monitoring for Normal Operation
Marine Water Quality Monitoring for THEES
maintenance and Emergency Discharge
Marine Water Quality Monitoring Stations
3.3.21 Under
THEES maintenance or emergency discharge events, effluent would be discharged
into the Tolo Harbour from the existing emergency outfalls of STSTW and TPSTW.
Twelve (12) monitoring stations are proposed for the marine water quality
monitoring for THEES maintenance and emergency discharge events as listed in Table
3.3. Eleven (11) are
impact stations and one (1) is control station. The coral site located far away
from the emergency outfalls at the mouth of Tolo Channel is selected as control
station. The locations of the proposed marine water quality monitoring stations
in Tolo Harbour and Tolo Channel are indicated in Figure
3.3.
Table 3.3 Proposed Marine Water
Quality Monitoring Stations in Tolo Harbour and Tolo Channel
|
Station
|
Description
|
Easting *
|
Northing *
|
|
Impact Station
|
|
F7 / CR1
|
WSD Flushing Water Intake at Tai Po / Corals at Tai
Po Industrial Estate
|
837786
|
834619
|
|
F8
|
WSD Flushing Water Intake at Sha Tin
|
840249
|
830072
|
|
E1
|
Seawater Intake for Experimental Mariculture at
Marine Science Laboratory of CUHK
|
840160
|
831888
|
|
FC1
|
Yim Tin Tsai Fish Culture Zone
|
839228
|
834940
|
|
FC2
|
Yim Tin Tsai (East) Fish Culture Zone
|
840830
|
834904
|
|
FC3
|
Lo Fu Wat Fish Culture Zone
|
846391
|
836694
|
|
FC4
|
Yung Shue Au Fish Culture Zone
|
846537
|
831845
|
|
CR2
|
Corals at Shuen Wan Golf Course
|
838276
|
834652
|
|
CR3
|
Corals at Providence
Bay
|
839193
|
832655
|
|
CR4
|
Corals at Ma Liu Shui
|
840308
|
831611
|
|
CR5
|
Corals at Sha Tin Hoi
|
840247
|
830596
|
|
Control Station
|
|
CR12
|
Corals at Gruff Head
|
851041
|
837859
|
3.3.22
The status and locations of water sensitive
receivers may change after issuing this Manual. Any change to the
monitoring stations shall be justified by the ET Leader, agreed by the ER,
verified by the IEC before seeking approval from EPD, AFCD and WSD prior to the
commencement of the monitoring.
Marine
Water Quality Monitoring Parameters and Schedule
Depths
of Measurements
3.3.23 Measurements
shall be taken at three water depths (i.e. 1 m below
water surface, mid-depth and 1 m above seabed), except where the water depth is
less than 6 m, for which the mid-depth station may be omitted. Should the water depth be less than 3 m, only
the mid-depth station will be monitored.
Baseline
Monitoring
3.3.24 A
one-year baseline monitoring programme, covering both dry and wet seasons, is
proposed at a frequency of twice per month to establish the baseline water
quality conditions at all designated monitoring stations. The baseline
monitoring programme should be carried out prior to the Project construction.
3.3.25 During
each monitoring event, water samples shall be collected at both mid-flood and
mid-ebb tides. The proposed baseline water quality monitoring schedule should
be submitted to the ER, IEC and EPD at least 4 weeks before the first day of
the monitoring month. The ER, IEC and EPD should also be notified immediately
for any changes in schedule. Marine water quality parameters including pH,
salinity, DO, turbidity, SS, BOD5, TIN, NH3-N, UIA,
chlorophyll-a and E. coli levels shall be monitored.
Salinity, pH, DO and turbidity shall be measured in-situ whereas SS, BOD5, TIN, NH3-N, UIA,
chlorophyll-a and E. coli shall be determined by
laboratory. Duplicate in-situ
measurements and collection of duplicate water samples for laboratory analysis
should be carried out in each independent sampling event.
3.3.26 The
purpose of the baseline monitoring is to establish ambient conditions under
normal operation of TPSTW and the THEES. The baseline monitoring programme
shall be suspended in the events of any THEES maintenance or emergency
discharge or if there are other marine construction activities in Tolo Harbour
and Tolo Channel. The baseline water quality shall be established and agreed
with EPD prior to the commencement of the Project construction. In exceptional
cases when insufficient baseline monitoring data or questionable results are
obtained, the ET Leader shall seek approval from the IEC and EPD on an
appropriate set of data to be used as baseline reference.
Impact
Monitoring
3.3.27 In
case of THEES maintenance during the construction phase and after commissioning
of the New West Plant, marine water quality at all designated monitoring
stations should be monitored daily during and after the maintenance period. The
monitoring should be carried out until the baseline water quality is restored
for at least 2 consecutive days or at least 4 weeks after termination of the
effluent bypass (whichever is longer). The effluent flow and quality of the
THEES maintenance discharge (from the existing / upgraded TPSTW and STSTW /
CSTW) should also be monitored daily during the THEES maintenance period.
3.3.28 In
case of emergency discharge during the construction phase or during operation
of the New West Plant, marine water quality at all designated monitoring
stations should be monitored daily throughout the emergency discharge period
until the baseline water quality is restored for at least 2 consecutive days or
at least 1 week after termination of the discharge (whichever is longer). The
marine water quality monitoring shall be commenced within 24 hours after the
start of the emergency discharge. The effluent flow and quality of the
emergency discharge should also be monitored daily during the emergency
discharge period.
3.3.29 During
each monitoring event, marine water samples shall be collected at both
mid-flood and mid-ebb tides. Marine water quality parameters including pH,
salinity, DO, turbidity, SS, BOD5, TIN, NH3-N, UIA,
chlorophyll-a and E.coli shall be measured under
the impact monitoring programme. The effluent monitoring parameters shall
include flow, pH, salinity, turbidity, SS, BOD5, TIN, NH3-N,
NO3-N
and E.coli. Salinity, pH, DO and
turbidity shall be measured in-situ
whereas SS, BOD5, TIN, NH3-N, NO3-N, UIA,
chlorophyll-a and E. coli shall be determined by
laboratory. Duplicate in-situ
measurements and collection of duplicate water samples for laboratory analysis
should be carried out in each independent sampling event.
Event and Action Plan
3.3.31 The
Project Proponent / plant operators shall inform EPD, AFCD, WSD and, if
necessary, other relevant stakeholders (such as the mariculturists) every day
on the latest results of the water quality monitoring exercise to allow these
parties to make informed decisions. By
the end of the water quality monitoring exercise, the Project Proponent / plant
operators shall also inform these parties that the ambient water quality is
restored and thus the water quality is recovered. It is recommended that the
Project Proponent / plant operators shall maintain good communications with
various concerned parties. A list of
address, email address, phone and fax number of key
persons of all relevant parties shall be made available to the Project
Proponent / plant operators. The procedures to be followed in the event of
THEES maintenance and emergency discharge are provided in Table
3.4.
Table 3.4 Event and Action Plan for THEES
Maintenance and Emergency Discharge
|
Event
|
Actions by Project Proponent / Plant Operators
|
|
THEES Maintenance Discharge
|
1. The regular THEES maintenance event should be carefully planned and
scheduled outside the peak algae blooming season (i.e.
December to April/May) to minimize the risk of red tides.
2. The scheduling of the THEES maintenance discharge should take into account any ongoing blooming event in the area,
which may occur outside the blooming season, in liaison with AFCD
3. Notify EPD, AFCD and WSD and other relevant stakeholders on the
maintenance event and submit the maintenance schedule to all relevant parties
at least four weeks before any discharge.
4. If required by WSD, install silt curtains at Tai Po and Shatin
flushing water intakes during the whole water quality monitoring exercise.
5. Conduct daily marine water monitoring (as discussed in Sections 3.3.20 to 3.3.30) until the baseline water quality levels are restored for at least 2
consecutive days or at least 4 weeks after termination of the maintenance
period (whichever is longer).
6. Conduct daily effluent monitoring (as discussed in Sections 3.3.20 to 3.3.30) throughout the THEES maintenance period.
7. The monitoring data collected in Item 5 above shall be compared with
the baseline data collected under normal operation of the THEES to identify
the degree of impact caused by the THEES
maintenance discharge.
|
|
Emergency Discharge
|
1. Investigate the reason of failure and adhere to the procedures in the
latest emergency contingency plan prepared by DSD where appropriate.
2. Determine possible remedial measures and identify the need of
emergency discharge.
3. If emergency discharge is required, EPD, AFCD, WSD and other relevant
parties should be informed immediately.
4. Ensure remedial measures are implemented.
5. Assess the effectiveness of the implemented remedial measures and
identify alternative measures if necessary.
6. Discuss with EPD, AFCD and WSD for the required remedial actions if
necessary and ensure all necessary remedial actions are properly implemented.
7. Conduct daily marine water monitoring (as discussed in Sections 3.3.20 to 3.3.30) until the baseline water quality levels are restored for at least 2
consecutive days or at least 1 week after normal plant operation is resumed
(whichever is longer).
8. Conduct daily effluent monitoring (as discussed in Sections 3.3.20 to 3.3.30) during the emergency discharge period.
9. The monitoring data collected in Item 7 above shall be compared with
the baseline data collected under normal operation of the Project to identify
the degree of impact caused by the emergency discharge (if any).
|
Documentation of Water Quality Monitoring
for THEES Maintenance and Emergency Discharge
3.3.32 Details
of each THEES maintenance event occurring during the water quality monitoring
programme, including the results and findings of the water quality monitoring
exercise as well as the need and requirements of any additional water quality mitigation
measures/plans for future THEES maintenance events shall be documented and
submitted to EPD, AFCD and WSD within 4 weeks after completion of the water
quality monitoring exercise for agreement.
3.3.33 Details
of any emergency discharge event occurring during the water quality monitoring
programme including the cause of plant failure, the remedial measures
undertaken, the water quality impact monitoring results and findings, the
recommendation of any follow-up actions to avoid future occurrence of the same
incident as well as the need and requirements of any additional water quality
mitigation measures for future emergency discharge shall be documented and
submitted to EPD, AFCD and WSD within 4 weeks after completion of the water
quality monitoring exercise for agreement.
Site
Record
3.3.34 All
relevant data shall be recorded, including monitoring location / position,
time, water depth, pH value, salinity, turbidity, temperature, tidal stages,
weather conditions and any special phenomena (provide photographs if appropriate)
or work activities undertaken around the monitoring and works area that may
influence the monitoring results. A sample data record sheet is shown in Appendix
E
for reference.
Monitoring
Equipment
Dissolved Oxygen and Temperature
Measuring Equipment
3.3.35 The
instrument shall be a portable and weatherproof DO measuring instrument
complete with cable and sensor, and use a direct
current (DC) power source. The equipment
shall be capable of measuring:
n DO level in the
range of 0 ‑ 20 mg L-1 and 0 ‑ 200% saturation; and
n Temperature of
0 ‑ 45 degree Celsius.
3.3.36 It
shall have a membrane electrode with automatic temperature compensation
complete with a cable. Sufficient stocks of spare electrodes and cables shall
be available for replacement where necessary. For example, YSI model 59 meter,
YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an
approved similar instrument.
3.3.37 Shall
salinity compensation not be built-in to the DO equipment, in-situ salinity shall be measured to calibrate the DO equipment
prior to each DO measurement.
Turbidity Measurement Instrument
3.3.38 Turbidity
shall be measured in-situ by the
nephelometric method. The instrument shall be portable and weatherproof
turbidity measuring instrument using a DC power source complete with cable, sensor and comprehensive operation manuals. It shall have a
photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU (for
example, Hach model 2100P or an approved similar instrument). The cable shall
not be less than 25m in length. The meter shall be calibrated in order to establish the relationship between NTU units and
the levels of suspended solids. The turbidity measurement should be carried out
on a split water sample from the same water sample collected for suspended
solids analysis.
Water Sampling Equipment
3.3.39
A water sampler is required. It shall comprise a transparent Polyvinyl
Chloride (PVC) cylinder, with a capacity of not less than 2 litres, which can
be effectively sealed with latex cups at both ends. The sampler shall have a
positive latching system to keep it open and prevent premature closure until
released by a messenger when the sampler is at the selected water depth (for example,
Kahlsico Water Sampler or an approved similar instrument).
Water Depth Detector
3.3.40
A portable, battery-operated echo sounder shall
be used for the determination of water depth at each designated monitoring
station. This unit can either be handheld or affixed to the bottom of the work boat, if the same vessel is to be used throughout the
monitoring programme.
Salinity
3.3.41 A
portable salinometer capable of measuring salinity in the range of 0 - 40 parts
per thousand (ppt) shall be provided for measuring salinity of the water at
each monitoring location.
pH Measuring Instrument
3.3.42
The instrument shall consist of a potentiometer,
a glass electrode, a reference electrode and a
temperature-compensating device. It shall be readable to 0.1 pH in a range of 0
to 14. Standard buffer solutions of at least pH 7 and pH 10 shall be used for
calibration of the instrument before and after use. Details of the method shall
comply with American Public Health Association (APHA), 19th ed. 4500-HTB or
equivalent methods subject to approval of the EPD.
Sample Containers and Storage
3.3.43 Water
samples shall be stored in high density polythene bottles with no preservative
added, packed in ice (cooled to 4°C without being frozen) and delivered to the
laboratory and analyzed as soon as possible after collection. Sufficient volume
of samples shall be collected to achieve the required detection limit.
Monitoring Position Equipment
3.3.44 A
hand-held or boat-fixed type digital Differential Global Positioning System
(DGPS) with way point bearing indication or other equipment instrument of
similar accuracy, shall be provided and used during
marine water monitoring to ensure the monitoring vessel is at the correct
location before taking measurements.
Calibration of In-Situ
Instruments
3.3.45
All in-situ
monitoring instruments shall be checked, calibrated
and certified by a laboratory accredited under HOKLAS or any other
international accreditation scheme before use and subsequently re-calibrated at
three monthly intervals throughout all stages of the water quality monitoring
programme. Responses of sensors and electrodes shall be checked with certified
standard solutions before each use. Wet bulb calibration for a DO meter shall
be carried out before measurement at each monitoring location.
3.3.46 Sufficient
stocks of spare parts shall be maintained for replacements when necessary. Backup monitoring equipment shall also be
made available so that monitoring can proceed uninterrupted even when some
equipment is under maintenance, calibration, etc.
Laboratory
Measurement / Analysis
3.3.47 Analysis
of SS, BOD5, COD, TIN, NH3-N, NO3-N, UIA,
chlorophyll-a and E. coli levels shall be carried out in a
HOKLAS or other international accredited laboratory.
Sufficient water samples shall be collected at the monitoring stations for
carrying out the necessary laboratory analysis. The analysis shall commence
within 24 hours after collection of the water samples. The analyses shall
follow the standard methods described in APHA Standard Methods for the
Examination of Water and Wastewater, 21st edition or equivalent methods subject
to approval of the EPD.
3.3.48 Detailed
testing methods, pre-treatment procedures, instrument use, Quality Assurance
(QA) /Quality Control (QC) details (such as blank, spike recovery, number of
duplicate samples per batch, etc.), detection limits and accuracy shall be
submitted to EPD for approval prior to the commencement of monitoring
programme. The QA/QC shall be in accordance with the requirement of HOKLAS or
international accredited scheme. EPD may also request the laboratory to carry
out analysis of known standards provided by EPD for quality assurance.
Additional duplicate samples may be required by EPD for inter laboratory
calibration. Remaining samples after analysis shall be kept by the laboratory
for 3 months in case repeat analysis is required. If in-house or non-standard
methods are proposed, details of the method verification may be required to be
submitted to EPD. In any circumstance, the sample testing shall have
comprehensive QA and QC programmes. The laboratory shall prepare to demonstrate
the programmes to EPD or his representatives when requested.
3.4.1
Regular environmental site audits are
recommended to ensure the proper implementation of proposed mitigation measures
during the construction phase as detailed in Section 12. .
4.1.1
The EIA has evaluated the ecological
consequences of the Project and recommended ecological mitigation measures to
avoid, minimize and compensate for the impact arising from the Project.
4.1.2
In this section, the requirements for the
monitoring and audit of ecological impacts arising from the Project are
presented.
4.2.1
Mitigation measures for ecological impacts have
been recommended in the EIA Report. All the recommended mitigation measures and
designs are provided in the implementation schedule in Appendix
B.
Monitoring
of Compensation for Occasional Ardeid Night Roost
4.3.1
Prior to the site clearance works at the tree
group (i.e. the identified occasional night roost for
ardeids) within the TPSTW, tree assessment shall be conducted by the qualified
botanist/plant ecologist(s) of the ET. Transplantation Proposal shall be
prepared to confirm the location, quantity and condition of the trees within
the tree group, and propose methodology and receptor
site (s) to transplant any of these trees that are to be affected by the
construction works. After completion of the tree transplantation works, the
conditions of the transplanted trees shall be closely monitored at monthly
basis throughout the construction period of the Project.
4.3.2
Compensatory planting of suitable trees within
TPSTW shall be implemented if transplanting the identified tree group is
impracticable based on the tree assessment. A detailed Compensation Plan shall
be prepared by the qualified botanist/plant ecologist(s) of the ET. The Plan
shall include proposals on site preparation works, planting design and layout,
planting period, planting methodology, site supervision of planting,
post-planting monitoring and maintenance programme.
4.3.3
The Transplantation Proposal and Compensation
Plan shall be submitted to AFCD for agreement prior to removal of the concerned
tree group. The post-transplanting or post-planting monitoring shall be carried
out by the qualified botanist/plant ecologist(s) of the ET and the results
shall be submitted to AFCD on a monthly basis
throughout the monitoring programme.
4.3.4
Given the sporadic use of the site by night
roosting ardeids, no night roosting bird monitoring is proposed.
Monitoring
of Disturbance Impacts during Construction Phase
4.3.5
Monthly ecological monitoring, focusing on
avifauna species of conservation importance (e.g.
Collared Crows and ardeids) utilizing habitats within the 500m assessment area,
should be conducted during construction phase to monitor the effectiveness of
proposed mitigation measures and detect any unpredicted indirect ecological
impacts arising from the proposed Project. The ecological monitoring should be
undertaken by experienced ecologist(s) with relevant working experience.
Remedial actions can then be recommended, where appropriate, based on the
impact monitoring results.
4.3.6
Whilst the roosting sites of Collared Crow and
roosting sites of Black Kites were identified within Shuen Wan Restored
Landfill, which are separated from the Project works by the existing
topography, monitoring of the pre-roost and night roost of Collared Crows is
recommended given its importance.
4.3.7
Site audits should be undertaken by the ET, ER
and the Contractor on weekly basis to check the proper implementation and
maintenance of recommended mitigation measures during construction phase of the
Project.
4.3.8
The ecological monitoring and site audit results
and findings shall be documented in the Monthly / Quarterly / Final EM&A
Reports for construction phase.
Monitoring of Disturbance Impacts during
Operational Phase
4.3.9
Monthly ecological monitoring, focusing on
avifauna species of conservation importance (e.g.
Collared Crows and ardeids) utilizing habitats within the Project site, should
be conducted in the first 3 years of the Project operation to monitor any
changes in foraging habitats by the Project. The ecological monitoring should
be undertaken by experienced ecologist(s) with relevant working experience.
Remedial actions can then be recommended, where appropriate, based on the
impact monitoring results. The monitoring results and recommendation of the
ecologist(s) shall be submitted to AFCD for agreement.
4.4.1
Potential marine ecological impacts arising from
the Project have been addressed in the EIA Report. No unacceptable marine
ecological impact is anticipated with implementation of proposed mitigation
measures. The water quality monitoring and audit programme presented in Section
3 would serve to protect the marine ecological resources. No monitoring and
audit program specific to marine ecology is required.
5.1.1
Potential fisheries impacts arising from the
Project have been addressed in the EIA Report.
No unacceptable fisheries impact is anticipated with implementation of
proposed mitigation measures. The water quality monitoring and audit programme
presented in Section 3 would serve to protect the fisheries resources. No
monitoring program specific for fisheries is required.
5.2.1
Mitigation measures recommended for controlling
water quality impact would also serve to protect fisheries resources and
activities from indirect impacts. The THEES maintenance discharge would be
avoided in the algae blooming season (December to April/May). The scheduling of
the THEES maintenance discharge would take into account
any ongoing blooming event in the area, which may occur outside the blooming
season. All the recommended mitigation measures and designs are provided in the
implementation schedule in Appendix
B.
6.1.1
The EIA Report has recommended landscape and
visual mitigation measures for the construction and operational phases of the
Project. This section defines the audit requirements to confirm the recommended
landscape and visual impact mitigation measures are effectively implemented.
6.2.1
The proposed mitigation measures of landscape
and visual impacts are presented in Appendix
B.
The landscape and visual mitigation measures proposed should be incorporated in
the detailed landscape and engineering design. The construction phase
mitigation measures should be adopted from the commencement of construction and
should be in place throughout the entire construction period. Mitigation
measures for the operational phase should be adopted during the detailed design
and be built as part of the construction works so that they are in place on
commissioning of the Project.
6.2.2
Any potential conflict among the proposed
mitigation measures, the Project works, and operational requirements should
also be identified and resolved at early stage. Any change to the mitigation
measure should be incorporated in the detailed design.
6.3.1
Baseline review to check, record and report the
status of the Landscape Resources (LR) and Landscape Character Areas (LCA)
within the construction works sites and works areas shall be conducted prior to
commencement of any construction works making reference
to the LR and LCA maps included in the EIA Report.
6.3.2
Any significant change to the status of LR and
LCA since the EIA shall be identified. The recommended mitigation measures
shall be reviewed if such change warrants a change in the design of the
mitigation measures.
6.3.3
A baseline monitoring report including
photographic record of the site at the time of the Contractor's possession of
the site shall be prepared by the Contractor and approved by the ER. The
approved baseline monitoring report including photographic record shall be
submitted to the Project Proponent, ET, IEC and EPD for record.
6.4.1
Site audits should be undertaken during the
construction phase and the 12-month establishment period (operational phase) to
check that the proposed landscape and visual mitigation measures are properly
implemented and maintained as per their intended objectives. The extent of
works areas should be regularly checked by the ET, ER and the Contractor to
ensure no damage to existing vegetation or trees outside the works limits.
6.4.2
The conditions and growth performance of the
implemented compensatory planting should be regularly checked and monitored by
a qualified plant specialist of the ET to ensure the effectiveness of the
mitigation measures.
6.4.3
Site inspections should be undertaken at weekly
basis during the construction period and once every two months for the 12-month
establishment period during operational phase.
6.4.4
In the event of non-compliance, the
responsibilities of the relevant parties are detailed in the Event/Action plan
provided in Table 12.1 in Section 12.
7.1.1
Potential hazard to life risk arising from the
Project have been addressed in the EIA Report.
No unacceptable risk is predicted.
7.2.1
Mitigation measures recommended to further
manage and minimize the potential risk during construction and operational
phases of the Project are provided in the implementation schedule in Appendix
B.
7.3.1
Implementation of the recommended mitigation
measures should be regularly audited during the construction phase as detailed
in Section 12..
8.1.1
Potential landfill gas hazard arising from the
Project have been addressed in the EIA Report.
No adverse impact is anticipated with implementation of proposed
mitigation measures.
8.2.1
Precautionary and protection measures for
landfill gas hazard have been recommended in the EIA Report. All the
recommended mitigation measures and designs are provided in the implementation
schedule in Appendix
B.
Construction Phase
8.3.1
Landfill gas (LFG) Monitoring shall be
undertaken during construction phase. The monitoring requirement of excavations
stated in the Landfill Gas Hazard Assessment Guidance Note (EPD/TR8/ 97)
sections 8.25 to 8.27 shall be followed. All measurements of LFG should be
recorded and documented by a standard record form to be approved by EPD. The
form will detail the location, time of monitoring and equipment used, together
with the gas concentrations measured to ensure all relevant data are recorded.
LFG monitoring during construction phase will be reported in the monthly
EM&A Reports.
8.3.2
Periodically during ground-works construction,
the works area should be monitored for methane, carbon dioxide and oxygen using
appropriately calibrated portable gas detection equipment.
8.3.3
The monitoring frequency and areas to be
monitored should be set down prior to commencement of ground-works
either by the Safety Officer or by an appropriately qualified person.
8.3.4
Routine monitoring should be carried out in all
excavations, manholes and chambers and any other confined spaces that may have
been created by, for example, the temporary storage of building materials on
the site surface.
8.3.5
The gas detection equipment should be
appropriately calibrated and able to measure the following gases in the ranges
indicated below:
n Methane 0-100% LEL and 0-100% v/v
n Carbon dioxide 0-100%
n Oxygen 0-21%
8.3.6
Monitoring should be
performed properly to make sure that the area is free of LFG before any man
enters into the area.
8.3.7
All measurements in excavations should be made
with the extended monitoring tube located not more than 10mm from the exposed
ground surface. The monitoring should be undertaken by the Safety Officer.
8.3.8
For excavations deeper
than 1m, measurements should be carried out:
n at the ground
surface before excavation commences;
n immediately
before any worker enters the excavation;
n at the
beginning of each working day for the entire period the excavation remains
open; and
n periodically
through the working day whilst workers are in the excavation.
8.3.9
For excavations between
300mm and 1m deep, measurements should be carried
out:
n directly after
the excavation has been completed; and
n periodically
whilst the excavation remains open.
8.3.10 For excavations less than 0.3m deep, monitoring may be
omitted, at the discretion of the Safety Officer or other appropriately
qualified person.
8.3.11 Depending
on the results of the measurements, actions required will vary and should be
set down by the Safety Officer or other appropriately qualified person. As a
minimum these shall encompass those actions specified in Table 8.1.
Table 8.1 Actions in the event
of LFG being detected in excavations
|
Parameter
|
Monitoring Results
|
Action by the Contractor
|
|
Oxygen
|
<19%
|
· Ventilate trench/void to restore O2 to
>19%
|
|
<18%
|
· Stop works;
· Evacuate personnel/prohibit entry;
· Increase ventilation to restore O2 to >19%
|
|
Methane
|
>10% LEL
(i.e. >0.5% v/v)
|
· Prohibit hot works;
· Ventilate to restore CH4 to <10%
LEL
|
|
>20% LEL
(i.e. >1% v/v)
|
· Stop works;
· Evacuate personnel/prohibit entry;
· Increase ventilation to restore CH4 to
<10% LEL
|
|
Carbon Dioxide
|
>0.5% v/v
|
· Ventilate to restore CO2 to <0.5%
|
|
>1.5% v/v
|
· Stop works;
· Evacuate personnel/prohibit entry;
· Increase ventilation to restore CO2 to
<0.5%
|
8.3.12 Upon
completion of the works, a competent professional person representing the
Project Proponent shall confirm in writing to EPD that all the recommended LFG
protection measures for the Project have been properly incorporated, installed and implemented. This could be in form of a report
with photos showing the installation of membrane, installation of gas detection
system, etc. as well as the relevant as-built drawings related to LFG
protection measures.
Operational
Phase
8.3.13 Gas
detection systems with audio alarm and forced ventilation should also be
provided in the areas at or below the ground floor of new permanent building
structures of the Project if provision of natural ventilation is not feasible
in such areas. The gas detection systems should be calibrated and maintained at
regular basis in according to the recommendation of manufacturer’s
instruction. The operators of the Project should also make sure that the
gas detection systems are in functions during the operational phase of the
Project.
8.3.14 Forced
ventilation should be used if methane of more than 0.5 % (by volume) in the
internal atmosphere (e.g. in voids or rooms as
mentioned above) is detected in the aforementioned areas.
8.3.15 Carbon
dioxide and oxygen concentration should be monitored
and no person shall enter or remain in any confined spaces (e.g. in voids or
rooms as mentioned above) where carbon dioxide concentration exceeds 1.5 % (by
volume) or the oxygen content of air has fallen below 18 % (by volume).
8.3.16 Landfill
gas concentration should be measured and monitored prior to any person entering
the confined spaces.
8.3.17 When
service voids, manholes or inspection chambers within the proposed site are
entered for maintenance, monitoring and a checklist system of safety
requirements should be performed before entry in accordance with Code of
Practice on Safety and Health at Work in Confined Spaces published by Labour
Department.
9.1.1
During the construction phase, the Contractor
shall be responsible for the implementation of mitigation measures to minimize
waste or redress problems arising from the waste materials including
construction and demolition (C&D) materials, excavated sediments, chemical waste and general refuse. A Waste Management Plan (WMP), as
a part of the Environmental Management Plan (EMP), should be prepared in
accordance with ETWB TC (W) No.19/2005 and submitted to the Engineer for
approval. The recommended mitigation measures should form the basis of the WMP.
Regular audit of the construction waste materials and waste management practice
is recommended during the construction phase.
9.1.2
Large quantities of wastes are not expected from
the operation of the Project and no adverse environmental impact would arise with
the implementation of good waste management practices. Hence, audit programme would not be required
during the operational phase.
9.2.1
The mitigation measures recommended in the EIA
Report should form the basis of the site WMP to be developed by the Contractor
during the construction stage.
9.2.2
With the appropriate handling, storage and
disposal of waste arising from the construction and operation of the Project as
recommended in Appendix
B,
the potential adverse environmental impacts would be avoided or minimized.
Regular audits and site inspections shall be
carried out at regular interval (at least quarterly) during construction phase
by the ER, ET and Contractor to ensure that the good
waste management practices and mitigation measures listed in Appendix
B and specified in the WMP and the
relevant EPD’s regulations and legislations are properly implemented by the
Contractor. The audits should concern all aspects of on-site waste management
practices including waste generation, storage, recycling, transport
and disposal. The regular audit programme would ensure that the solid wastes
generated during construction are not disposed into the nearby coastal waters.
The auditing requirement stated in ETWB TC (W) No.19/2005 should be followed with regard to the management of &D materials. Apart
from site inspection, documents including licenses, permits, disposal and
recycling records should be reviewed and audited for compliance with the
legislation and contract requirements.
10.1.1 As
the existing facilities in the existing Project site is still in operation and
will continue to operate during the EIA stage, further assessment and, if
required, remediation works are recommended to be carried out after
decommissioning of the concerned facilities / areas but prior to the
construction works at the concerned facilities / areas. The recommended further
assessment and remediation works, including the submission of supplementary
Contamination Assessment Plan(s) (CAP(s)), Contamination Assessment Report(s)
(CAR(s)), Remediation Action Plan(s) (RAP(s)) and Remediation Report(s) (RR(s))
would need to follow EPD’s Guidance Manual, Guidance Note and Practice Guide
and according to the EIA Report.
10.2.1 Mitigation
measures for potential land contamination have been recommended in the EIA
Report. All the recommended mitigation measures and designs are provided in the
implementation schedule in Appendix
B.
10.3.1
Remediation works, if necessary, would be
carried out based on the recommended further works outlined in Section 10.1.
Mitigation measures as recommended in the future EPD endorsed RAP(s) should be
implemented during the remediation works. The Environmental Monitoring and
Audit (EM&A) requirements should be carried out in the form of regular site
inspections to ensure the recommended mitigation measures are properly
implemented.
11.1.1 The
EIA Report concluded that no existing, committed or planned noise sensitive receiver (NSR) has
been identified within the assessment area. Based upon this, no noise
monitoring is considered necessary for either the construction or operational
phases.
11.2.1 Mitigation
measures for noise impacts have been recommended in the EIA Report. All the
recommended mitigation measures and designs are provided in the implementation
schedule in Appendix
B.
11.3.1 Regular
environmental site audits are recommended to ensure the proper implementation
of proposed mitigation measures during the construction phase.
12.1.1 Site
inspection provides a direct means to initiate and enforce specified
environmental protection and pollution control measures. These 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
inspection is one of the most effective tools to enforce the environmental
protection requirements at the works area.
12.1.2 The
ET shall be responsible for formulating the environmental site inspection programme
as well as the deficiency and action reporting system, and for carrying out the
site inspections. The proposal for rectification, if any, should be prepared
and submitted to the ET Leader and IEC by the Contractor.
12.1.3 Regular
site inspections shall be carried out and led by the ER and attended by the
Contractor and ET at least once per week during the construction
phase. The areas of inspection shall not be limited to the
environmental situation, pollution control and mitigation measures within the
site. It should also review the environmental situations outside the
works area which is likely to be affected, directly or
indirectly, by the construction site activities of the Project. The
ET shall make reference to the following information
in conducting the inspection. During the inspection, the following
information should be referred to:
a)
EIA Report recommendations on environmental
protection and pollution control mitigation measures;
b)
works progress and programme;
c)
individual works methodology proposals (which
shall include the proposal on associated pollution control measures);
d)
contract specifications on environmental protection;
e)
relevant environmental protection and
pollution control legislations; and
f)
previous site inspection results.
12.1.4 The
Contractor shall keep the ER and ET Leader updated with all relevant
environmental related information on the construction contract necessary for
him to carry out the site inspections. Site inspection results and
associated recommendations for improvements to the environmental protection and
pollution control efforts should be recorded and followed up by the Contractor
in an agreed time-frame. The Contractor
shall follow the procedures and time-frame as
stipulated in the environmental site inspection, and the deficiency and action
reporting system formulated by the ET, to report on any remedial measures
subsequent to the site inspections.
12.1.5 The
ER, ET and the Contractor should also carry out ad-hoc site inspections if
significant environmental problems are identified. Inspections may also be
required subsequent to receipt of a valid
environmental complaint, or as part of the investigation work, as specified in
the Event and Action Plan for the EM&A programme.
12.2.1 There
are statutory requirements on environmental protection and pollution control
requirements with which construction activities must comply.
12.2.2 In
order to ensure the works comply with corresponding
requirements, all method statements of works should be submitted by the
Contractor to the ER for approval and to the ET Leader to ensure sufficient
environmental protection and pollution control measures have been
included. The Project Implementation
schedule (PIS) is summarized in Appendix
B. Any proposed changes to the mitigation
measures shall be certified by the ET Leader and verified by the IEC as
conforming to the relevant information and recommendations contained in the EIA
Report.
12.2.3 The
ER and ET shall also review the progress and programme of the works to check
that relevant environmental legislations have not been violated, and that any
foreseeable potential for violating laws can be prevented.
12.2.4 The
Contractor should provide the update of the relevant documents to the ET Leader
so that checking can be carried out. The document shall at least include the
updated Works Progress Reports, updated Works Programme, method statements, any
application letters for different licenses/permits under the environmental
protection laws, and copies of all valid licenses/permits. The site diary and
environmental records shall also be available for inspection by the relevant
parties.
12.2.5 After
reviewing the document, the ET shall advise the IEC and Contractor of any
non-compliance with legislative requirements on environmental protection and
pollution control so that they can timely take follow-up actions as
appropriate. If the follow-up actions may still result in potential
violation of environmental protection and pollution control requirements, the
ER and ET should provide further advice to the Contractor to take remedial
action to resolve the problem.
12.2.6 Upon
receipt of the advice, the Contractor shall undertake immediate actions to
correct the situation. The ER and ET shall follow up to ensure that
appropriate action has been taken in order to satisfy
legal requirements.
12.3.1 At
times during the construction phase the Contractor may submit method statements
for various aspects of construction. This state of
affairs would only apply to those construction methods that the EIA has
not imposed conditions while for construction methods that have been assessed
in the EIA, the Contractor is bound to follow the requirements and
recommendations in the EIA Study. The Contractor’s options for alternative
construction methods may introduce adverse environmental impacts into the
Project. It is the responsibility of the Contractor and ET, in
accordance with established standards, guidelines and EIA Study recommendations
and requirements, to review and determine the adequacy of the environmental
protection and pollution control measures in the Contractor’s proposal in order to ensure no unacceptable impacts would
result. To achieve this end, the ET shall provide a copy of the Proactive
Environmental Protection Proforma as shown in Appendix
F to
the IEC for approval. The IEC should audit the review of the construction
method and endorse the proposal on the basis of no
adverse environmental impacts.
12.4.1 The
following procedures should be undertaken upon receipt of any environmental
complaint:
n The Contractor
to log complaint and date of receipt onto the complaint database and inform the
ER, ET and IEC immediately;
n The Contractor
to investigate, with the ER and ET, the complaint to determine its validity,
and assess whether the source of the problem is due to construction works of
the Project with the support of additional monitoring frequency and stations,
if necessary;
n The Contractor
to identify remedial measures in consultation with the IEC, ET and ER if a
complaint is valid and due to the construction works of the Project;
n The Contractor
to implement the remedial measures as required by the ER and to agree with the
ET and IEC any additional monitoring frequency and stations, where necessary,
for checking the effectiveness of the remedial measures;
n The ER, ET and
IEC to review the effectiveness of the Contractor's remedial measures and the
updated situation;
n The ET to
undertake additional monitoring and audit to verify the situation if necessary,
and oversee that circumstances leading to the
complaint do not recur;
n If the
complaint is referred by the EPD, the Contractor to prepare interim report on
the status of the complaint investigation and follow-up actions stipulated
above, including the details of the remedial measures and additional monitoring
identified or already taken, for submission to EPD within the time frame
assigned by the EPD; and
n The ET to
record the details of the complaint, results of the investigation, subsequent
actions taken to address the complaint and updated situation including the
effectiveness of the remedial measures, supported by regular and additional
monitoring results in the monthly EM&A reports.
12.5.1 In
the event of non-compliance identified during the EM&A programme, the
responsibilities of the relevant parties are detailed in the Event/Action plan
provided in Table
12.1.
Table 12.1 Event and Action Plan
|
Event
|
Action
|
|
ET
|
IEC
|
ER
|
Contractor
|
|
Non-conformity on one occasion
|
1. Inform
the IEC, ER and the Contractor;
2. Discuss remedial actions with IEC, ER and
Contractor; and
3. Monitor remedial actions until rectification
has been completed.
|
1. Check inspection
report;
2. Check Contractor’s working method;
3. Discuss with ET, ER and Contractor on possible
remedial measures;
4. Advise ER on effective of proposed remedial
measures; and
5. Check implementation of remedial measures.
|
1. Confirm receipt of notification of
non-conformity in writing;
2. Review and agree on the remedial measures
proposed by the Contractor; and
3. Ensure remedial measures are properly
implemented.
|
1. Identify source and investigate the non-conformity;
2. Amend working methods agreed with ER as
appropriate; and
3. Rectify damage and undertake any necessary replacement.
|
|
Repeated Non-conformity
|
1. Identify sources;
2. Inform the Contractor, IEC and ER;
3. Discuss inspection frequency;
4. Discuss remedial actions with IEC, ER and Contractor;
5. Monitor remedial actions until rectification
has been completed; and
6. If non-conformity stops, cease additional
monitoring.
|
1. Check inspection report;
2. Check Contractor’s working method;
3. Discuss with ET, ER and Contractor on possible
remedial measures; and
4. Advise ER on effectiveness of proposed
remedial measures.
|
1. Notify the Contractor;
2. in consultation with the ET and IEC, agree
with the Contractor on the remedial measures to be implemented; and
3. Supervise implementation of remedial measures.
|
1. Identify source and investigate the non-conformity;
2. implement remedial measures;
3. Amend working methods agreed with ER as appropriate;
4. Rectify damage and undertake any necessary
replacement. Stop relevant portion of works as determined by ER until the non-conformity is abated.
|
13.1.1 Reports
can be provided in an electronic medium upon agreeing the format with the ER
and EPD. This would enable a transition from a paper/historic and
reactive approach to an electronic/real time proactive approach. All
the monitoring data (baseline and impact) shall also be submitted on diskettes
or other approved media. The formats for monitoring data to be
submitted shall be separately agreed.
13.1.2 The
ET is responsible for establishing and maintaining a dedicated website
throughout the entire construction period for publishing all the relevant
environmental monitoring data (including but not limited to the baseline and
impact monitoring). The ET shall propose the format and functionality of
the website for agreement with the ER and IEC prior to publishing of
data. Once the monitoring data are available (e.g.
air quality, water quality, etc.) and vetted by the IEC, the ET is
responsible to upload the relevant data to the dedicated website.
13.1.3 Types
of reports that the ET shall prepare and submit include baseline monitoring
report, monthly EM&A report and final EM&A
review report. In accordance with Annex 21 of the EIAO-TM, a copy of
the monthly and final review EM&A reports shall be made available to the
Director of Environmental Protection.
13.2.1 The
baseline monitoring report shall include at least the following:
i.
Up to half a page executive summary;
ii.
brief project background information;
iii.
drawings showing locations of the baseline
monitoring stations;
iv.
monitoring results (in both hard and diskette
copies) together with the following information:
n monitoring methodology;
n name of
laboratory and types of equipment used and calibration details;
n parameters monitored;
n monitoring locations;
n monitoring
date, time, frequency and duration; and
n quality assurance (QA)/quality control (QC) results and
detection limits;
v.
details of influencing factors, including;
n major
activities, if any, being carried out on the site during the period;
n weather
conditions during the period; and
n other factors
which might affect monitoring results;
vi.
determination of the Action and Limit Levels
for each monitoring parameter and statistical analysis of the baseline data;
vii.
revisions for inclusion in the EM&A
Manual; and
viii.
comments, recommendations
and conclusions.
13.3.1 The
results and findings of all EM&A work required in the Manual shall be
recorded in the monthly EM&A reports prepared by the ET and endorsed by the
IEC. The EM&A report shall be
prepared and submitted to EPD within 10 working days of the end of each
reporting month, with the first report due the month after construction
commences. Copies of each monthly
EM&A report shall be submitted to the following parties: the IEC, the ER
and EPD. Before submission of the first
EM&A report, the ET shall liaise with the parties on the required number of
copies and format of the monthly reports in both hard copy and electronic
medium.
13.3.2 The
ET should prepare and submit a Baseline Environmental Monitoring Report at
least one month before commencement of construction of the
Project. Copies of the Baseline Environmental Monitoring Report
should be submitted to the IEC, ER and EPD. The ET should liaise
with the relevant parties on the exact number of copies require.
13.3.3 The
ET 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
13.3.4 The
first monthly EM&A report shall include at least the following:
i.
Executive summary (1-2 pages);
n breaches of
Action and Limit levels;
n complaint log;
n notifications
of any summons and successful prosecutions;
n reporting
changes; and
n future key
issues.
ii.
Basic project information:
n project
organization including key personnel contact names and telephone numbers;
n programme;
n management
structure; and
n works
undertaken during the month.
iii.
Environmental status
n advice on the
status of statutory environmental compliance such as the status of compliance
with the environmental permit (EP) conditions under the EIA Ordinance,
submission status under the EP and implementation status of mitigation measures;
n works
undertaken during the month with illustrations (such as location of works,
daily excavation rate, etc.); and
n 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.
A brief summary of EM&A requirements including;
n all monitoring parameters;
n environmental
quality performance limits (Action and Limit levels);
n Event-Action Plans;
n environmental
mitigation measures, as recommended in the project EIA Study final report; and
n environmental
requirements in contract documents.
v.
Implementation status
n advice on the
implementation status of environmental protection and pollution control /
mitigation measures, as recommended in the project EIA Report.
vi.
Monitoring result (in both hard and diskette
copies) together with the following information:
n monitoring methodology;
n name of
laboratory and types of equipment used and calibration details;
n monitoring parameters;
n monitoring locations;
n monitoring
date, time, frequency, and duration;
n weather
conditions during the period;
n any other
factors which might affect the monitoring results; and
n QA / QC results
and detection limits.
vii.
Reporting on non-compliance, complaints, and
notifications of summons and successful prosecutions:
n record of all
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels);
n record of all
complaints received (written or verbal) for each media, including locations and
nature of complaints investigation, liaison and consultation undertaken,
actions and follow-up procedures taken, results and summary;
n 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;
n review of the
reasons for and the implications of non-compliances, complaints, summons and prosecutions including review of pollution
sources and working procedures; and
n 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
n an account of
the future key issues as reviewed from the works programme and work method statements;
n advice on the
solid and liquid waste management status;
n record of any
project changes from the originally proposed as described in the EIA (e.g. construction methods, mitigation proposals, design
changes, etc.); and
n comments
(for examples, effectiveness and efficiency of the mitigation measures),
recommendations (for examples, any improvement in the EM&A programme) and
conclusions.
Subsequent
monthly EM&A Report
13.3.5 Subsequent
monthly EM&A report shall include at least the following:
i.
Executive summary (1-2 pages);
n breaches of
Action and Limit levels;
n complaint log;
n notifications
of any summons and successful prosecutions;
n reporting
changes; and
n future key
issues.
ii.
Basic project information:
n project
organization including key personnel contact names and telephone numbers;
n programme;
n management structure;
n works undertaken
during the month; and
n any updates as
needed to the scope of works and construction methodologies.
iii.
Environmental status
n advice on the
status of statutory environmental compliance such as the status of compliance
with the environmental permit (EP) conditions under the EIA Ordinance,
submission status under the EP and implementation status of mitigation measures;
n works
undertaken during the month with illustrations (such as location of works,
daily excavation rate, etc.); and
n drawings
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations.
iv.
Implementation status
n advice on the
implementation status of environmental protection and pollution
control/mitigation measures, as recommended in the project EIA Report.
v.
Monitoring result (in both hard and diskette
copies) together with the following information:
n monitoring methodology;
n name of
laboratory and types of equipment used and calibration details;
n monitoring parameters;
n monitoring locations;
n monitoring
date, time, frequency, and duration;
n weather
conditions during the period;
n any other
factors which might affect the monitoring results; and
n QA / QC results
and detection limits.
vi.
Reporting on non-compliance, complaints, and
notifications of summons and successful prosecutions:
n record of all
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels);
n record of all
complaints received (written or verbal) for each media, including locations and
nature of complaints investigation, liaison and consultation undertaken,
actions and follow-up procedures taken, results and summary;
n 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;
n review of the
reasons for and the implications of non-compliances, complaints, summons and prosecutions including review of pollution
sources and working procedures; and
n 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
n an account of
the future key issues as reviewed from the works programme and work method statements;
n advice on the
solid and liquid waste management status;
n record of any
project changes from the originally proposed as described in the EIA (e.g. construction methods, mitigation proposals, design
changes, etc.); and
n comments
(for examples, effectiveness and efficiency of the mitigation measures),
recommendations (for examples, any improvement in the EM&A programme) and
conclusions.
viii.
Appendices
n Action and
Limit levels;
n graphical plots
of trends of the monitoring parameters at key stations over the past four
reporting periods for representative monitoring stations annotated against the
following:
a) major
activities being carried out on site during the period;
b) weather
conditions during the period; and
c) any other
factors that might affect the monitoring results.
n monitoring
schedule for the present and next reporting period;
n cumulative
statistics on complaints, notifications of summons and successful prosecutions;
and
n outstanding
issues and deficiencies.
General
13.4.1 The
EM&A programme for construction stage should be terminated upon the
completion of the construction activities, while the EM&A programme for
operation stage should be terminated upon the completion of operation
monitoring.
13.4.2 The
proposed termination should only be implemented after the proposal has been
endorsed by the IEC, the Engineer and the Project Proponent followed by
approval from the Director of Environmental Protection.
Final
EM&A Review Report for Construction Stage
13.4.3 The
final EM&A review report for construction stage (to be submitted after
completion of construction activities) should contain at least the following
information:
i.
Executive summary (1-2 pages):
ii.
Drawings showing the project area, any
environmental sensitive receivers and the locations of the monitoring and
control stations;
iii.
Basic project information including a
synopsis of the project organization, contacts of key management, and a
synopsis of work undertaken during the course of the project or past twelve months;
iv.
A brief summary of
EM&A requirements including:
n environmental
mitigation measures for construction stage, as recommended in the project EIA Report;
n environmental
impact hypotheses tested;
n environmental
quality performance limits (Action and Limit levels);
n all monitoring parameters;
n Event and
Action Plans;
v.
A summary of the implementation status of
environmental protection and pollution control/mitigation measures for
construction stage, as recommended in the project EIA Report and summarised in
the updated implementation schedule;
vi.
Graphical plots and the statistical analysis
of the trends of monitoring parameters over the course of the project,
including:
n the major
activities being carried out on site during the period;
n weather
conditions during the period; and
n any other
factors which might affect the monitoring results;
vii.
A summary of non-compliance (exceedances) of the
environmental quality performance limits (Action and Limit levels);
viii.
A review of the reasons for and the
implications of non-compliance including review of pollution sources and
working procedures as appropriate;
ix.
A description of the actions taken in the
event of non-compliance;
x.
A summary record of all complaints received
(written or verbal) for each media, liaison and consultation undertaken,
actions and follow-up actions taken and results;
xi.
A review of the validity of EIA predictions
for construction stage and identification of shortcomings in EIA recommendations;
xii.
Comments (for example, a review of the
effectiveness and efficiency of the mitigation measures and of the performance
of the environmental management system, that is, of the overall EM&A programme
for construction stage); and
xiii.
Recommendations and conclusions (for example,
a review of success of the overall EM&A programme for construction stage to
cost-effectively identify deterioration and to initiate prompt
effective mitigatory action when necessary).
Final EM&A Review Report for Operation
Stage
13.4.4
The final EM&A review report for operation
stage (to be submitted after completion of operation monitoring) should contain
at least the following information:
i.
Executive summary (1-2 pages):
ii.
Drawings showing the project area, any
environmental sensitive receivers and the locations of the monitoring and
control stations;
iii.
Basic project information including a
synopsis of the project organization, contacts of key management, and a
synopsis of work undertaken during the course of the project or past twelve months;
iv.
A brief summary of
EM&A requirements including:
n environmental
measures for operational stage, as recommended in the project EIA Report;
n environmental
impact hypotheses tested;
n environmental
quality performance limits (Action and Limit levels);
n all monitoring parameters;
n Event and
Action Plans;
v.
A summary of the implementation status of
environmental protection and pollution control/mitigation measures for
operation stage, as recommended in the project EIA Report and summarised in the
updated implementation schedule;
vi.
Graphical plots and the statistical analysis
of the trends of monitoring parameters over the course of the project,
including:
n the major
activities being carried out on site during the period;
n weather
conditions during the period; and
n any other
factors which might affect the monitoring results;
vii.
A summary of non-compliance (exceedances) of
the environmental quality performance limits (Action and Limit levels);
viii.
A review of the reasons for and the
implications of non-compliance including review of pollution sources and
working procedures as appropriate;
ix.
A description of the actions taken in the
event of non-compliance;
x.
A summary record of all complaints received
(written or verbal) for each media, liaison and consultation undertaken,
actions and follow-up actions taken and results;
xi.
A review of the validity of EIA predictions
for operation stage and identification of shortcomings in EIA recommendations;
xii.
Comments (for example, a review of the
effectiveness and efficiency of the mitigation measures and of the performance
of the environmental management system, that is, of the overall EM&A
programme for operation stage); and
xiii.
Recommendations and conclusions (for example,
a review of success of the overall EM&A programme for operational stage to
cost-effectively identify deterioration and to initiate prompt
effective mitigatory action when necessary).
13.5.1 No
site-based documents (such as monitoring field records, laboratory analysis
records, site inspection forms, etc.) are required to be included in the
monthly EM&A reports. However, any
such document shall be well kept by the ET 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 magnetic media form,
and the software copy must be available upon request. Data format shall be agreed
with EPD. All documents and data shall be kept for at least one year following
completion of the construction contract and one year following completion of
the operational phase monitoring for construction phase EM&A and
operational EM&A respectively.
13.6.1 With
reference to the Event and Action Plans, when the environmental quality
performance limits are exceeded and if they are proven to be valid, the ET
should immediately notify the IEC and EPD, as appropriate. The notification
should be followed up with advice to the IEC and EPD on the results of the
investigation, proposed actions and success of the actions taken, with any
necessary follow-up proposals. A sample template for the interim notification
is presented in Appendix
G.