Table of Contents
1. Introduction 5
1.1 Background_ 5
1.2 Project Programme 5
1.3 Purpose of this Environmental
Monitoring and Audit (EM&A) Manual 6
1.4 Structure of EM&A Manual 6
2. Project Organization 8
2.1 Introduction_ 8
2.2 Project Proponent 8
2.3 The Contractor 8
2.4 Engineer’s Representatives (ER) 8
2.5 Independent Environmental
Checker (IEC) 9
2.6 Environmental Team (ET) 9
3. Air Quality Impact 11
3.1 Introduction_ 11
3.2 Monitoring Parameters 11
3.3 Monitoring Equipment 11
3.4 Monitoring Requirements 11
3.5 Monitoring Location_ 14
3.6 Placement of Equipment 14
3.7 Baseline Monitoring 15
3.8 Impact Monitoring 15
3.9 Air Quality Performance Limit 16
3.10 Event and Action Plan_ 16
3.11 Mitigation Measures 16
4. Noise Impact 18
4.1 Introduction_ 18
4.2 Monitoring Parameters 18
4.3 Monitoring Equipment 18
4.4 Monitoring Requirement 19
4.5 Monitoring Location_ 19
4.6 Baseline Monitoring 19
4.7 Impact Monitoring 20
4.8 Noise Performance Limit 20
4.9 Event and Action Plan_ 20
4.10 Mitigation Measures 20
5. Water Quality Impact 22
5.1 Introduction_ 22
5.2 Construction Phase EM&A_ 22
5.3 Monitoring Equipment 24
5.4 Water Quality Performance Limit 26
5.5 Event and Action Plan_ 27
5.6 Mitigation Measures 27
6. Waste Management 28
6.1 Introduction_ 28
6.2 EM&A Requirement 28
6.3 Waste Management Plan_ 28
6.4 Site Audit 29
6.5 Mitigation Measures 29
7. Ecological Impact 30
7.1 Introduction_ 30
7.2 Mitigation Measures 30
8. Landscape and Visual Impacts 31
8.1 Introduction_ 31
8.2 Monitoring of Mitigation
Measures during the Construction Phase 31
8.3 Monitoring of Mitigation
Measures during the Operation Phase 32
8.4 Mitigation Measures 32
9. site environmental audit 33
9.1 Introduction_ 33
9.2 Site Inspection_ 33
9.3 Compliance with Legal and
Contractual Requirements 34
9.4 Environmental Complaints 34
10. reporting 36
10.1 Introduction_ 36
10.2 Baseline Monitoring Report 36
10.3 EM&A Report 37
10.4 First EM&A Report 37
10.5 Subsequent EM&A Reports 39
10.6 Quarterly EM&A Summary Reports 40
10.7 Final EM&A Report 42
10.8 Data Keeping 43
10.9 Interim Notification of
Environmental Quality Limit Exceedances 43
11. Conclusion 44
11.1 Introduction_ 44
Tables
Table 3.1 Proposed
Dust Monitoring Stations
Table 3.2 Action
and Limit Levels for Air Quality
Table 4.1 Proposed
Construction Noise Monitoring Location
Table 5.1 Marine
Water Monitoring Locations in Construction Phase
Table 5.2 Analytical
method and detection limit for water samples
Table 5.3 Action
and Limit Levels
Figures
Figure
1.1 Location of Project Site
Figure 2.1 Project Organisation for Environmental
Works
Figure 3.1 Proposed Air & Noise Monitoring
Stations
Figure 5.1 Proposed Water Monitoring Stations
Appendices
Appendix A Environmental Mitigation Implementation
Schedule (EMIS)
Appendix B Sample Data Sheet
Appendix C Event and Action Plan
Appendix
D Interim Notifications of Exceedances
1.1.1
Silver
Mine Bay is a popular bathing beach in Mui Wo that attracted 4,550 visitors on
a peak day and over 69,000 visitors utilized the beach in 2012.
1.1.2
In
order to relieve the overcrowding problem and the road safety concern of Wang
Tong Bridge (hereafter called “Old Bridge”), two bridges (pedestrian bridge and
cycle bridge) are proposed to replace the Old Bridge. The new pedestrian bridge
and the new cycle bridge (hereafter called “New Bridges”) are also designed to
align with the future amenity development on the northern side of the Old
Bridge.
1.1.3
The
Project mainly comprises the following works:
i.
Construction of a new cycle bridge next to the
existing bridge
ii.
Demolition of the existing bridge
iii.
Construction of a new pedestrian bridge on the
same site of the existing bridge
1.1.4
Based
on the current design, both the new pedestrian bridge and cycle bridge will be
supported by the abutment and pier that stand above high water mark of Wang
Tong River. Location and layout of the New Bridges are shown in Figure 1.1.
1.1.5
The
Project consists of the following designated projects under Part I, Schedule 2
of the Environmental Impact Assessment Ordinance (EIAO):
·
Item C.12 – (a)…a dredging operation which is
less than 500m from the nearest boundary of an existing…(iii) bathing beach…
1.1.6
A
project profile (PP-478/2013) has been submitted to Environmental Protection
Department on 28 January 2013 and a study brief (ESB- 256/2013) has been issued
to HyD in March 2013.
1.1.7
As
a detailed environmental impact assessment (EIA) is required under the
Environmental Impact Assessment Ordinance (EIAO), HyD appointed the Joint Venture of Maurice Lee and
Associates Ltd. and Cinotech Consultants Ltd. (hereinafter called the JV)
to perform the EIA study.
1.2.1
The construction work for this Project is
expected to be commenced in mid 2017 and completed in mid 2019.
1.3.1
The purpose of this EM&A Manual (hereafter called the “Manual”) is
to guide the establishment of an EM&A programme to assure compliance with
the standards and predictions in the EIA study involving the construction and
operation of the New Bridges. Environmental performance will be regularly
monitored and audited for evaluating the effectiveness of the recommended
mitigation measures. If necessary, needs for additional mitigation measure(s)
and/or remedial action(s) will also be investigated.
1.3.2
This EM&A Manual is prepared based on the findings and
recommendations in the EIA, and with reference to the requirements stipulated
in Annex 21 Technical Memorandum under the Environmental Impact Assessment
Ordinance (EIAO-TM):
(i)
To
propose EM&A programme to monitor the environmental performance of the
project
(ii)
To
check the implementation status of mitigation measures to minimize construction
and operational impacts on the environment
(iii)
To
identify the need for additional mitigation measures
(iv)
To
advise the responsibilities of different parties involved in the project and
communication flow among them
(v)
To
detail monitoring requirements (locations, environmental parameters, frequency,
duration) before and during the construction period and in the operational
period
(vi)
To
propose monitoring equipment required and quality assurance
(vii)
To
determine action and limit levels of each environmental parameter based on the
legislative criteria and standards for compliance checking
(viii)
To
set up event and action plans for remedial actions if exceedance of compliance
is identified
(ix)
To
devise procedures for handling complaint/consultation
(x)
To
detail reporting requirement
1.4.1
This
EM&A
Manual comprises the following Chapters:
l Ch.1
Introduction
l Ch. 2 Project Organization
l Ch. 3 Air Quality Impact
l Ch. 4 Noise Impact
l Ch. 5 Water Quality Impact
l Ch. 6 Ecological Impact
l Ch. 7 Waste Management
l Ch. 8 Landscape and Visual Impact
l Ch. 9 Site Environmental Audit
l Ch.
10 Reporting
l
Ch. 11
Conclusion
2.1.1
The implementation
of the recommended EM&A programme requires participation of relevant
parties in a correlative and collaborative manner. The project organization and
lines of communication with respect to the recommended EM&A works are shown
in Figure 2.1. The roles and responsibilities of the key
EM&A programme participants involved are described in the following
sections.
2.2.1
The
Project Proponent (Highways Department) shall employ Independent Environmental
Checker (IEC) to audit and check the EM&A works of the Environmental Team
(ET).
2.3.1
The
Contractor implies all construction contractors and sub-contractors working on
the project site. He should:
(i)
Engage
the ET to carry out EM&A work
(ii)
Notify
the ET construction activities that may have environmental concern
(iii)
Participate
in the site inspection carried out by the ET and to rectify any environmental
deficiency identified
(iv)
Propose
and implement necessary measures to mitigate any exceedance in Action/Limit
Level recorded in accordance to the Event/Action Plans
(v)
Investigate
complaints according to the agreed procedures
2.4.1
The
ER shall be responsible to oversee the construction work of all contractors to
ensure that the contract specification can be met. He should:
(i)
Supervise
the Contractor’s activities to ensure that they comply with the requirement in
the EIA, EM&A Manual, Environmental Permit (EP) and the contract
specifications
(ii)
Follow
the agreed procedures in the Event/Action Plan in case of any exceedance and
instruct the Contractor to carry out remedial actions
(iii)
Investigate
complaints according to the agreed procedures and instruct the Contractor to
follow up
(iv)
Assist
the ET in implementation of EM&A programme when required
2.5.1
The
IEC shall be appointed by Highways Department to audit and verify the EM&A
works of the ET and to oversee the environmental performance of the project
site. He shall not have any association with the Contractor, ER or ET.
(i)
Review
and verify EM&A Reports and submissions for EP prepared by the ET and
advise for improvement
(ii)
Audit
and confirm the validity and accuracy of monitoring activities and results. He
may carry out random sample check and audit on monitoring data and sampling
procedures, etc
(iii)
Review
the implementation status and effectiveness of mitigation measures onsite and
ensure that they are carried out properly
(iv)
Conduct
monthly and random site inspection.
(v)
Investigate
complaints according to the agreed procedures
(vi)
Review
the proposal of mitigation measures by the Contractor in an event of exceedance
according to the Event/Action Plan
2.6.1
The
ET shall be led by the ET Leader to carry out EM&A programme and to check
the Contractor’s compliance with the environmental protection requirements in
the EIA, EM&A Manual and EP. He should:
(i)
Set
up monitoring station to carry out monitoring, statistical analysis and
compliance checking against legislative standard and guidelines
(ii)
Repeat
field measurement in case of exceedance and propose mitigation measures for
improvement
(iii)
Conduct
weekly site inspection to audit the Contractor’s site practice on pollution
prevention and the effectiveness and adequacy of mitigation measures
(iv)
Advise
the Contractor rectification work required when environmental deficiency is
identified
(v)
Prepare
monthly and quarterly EM&A report to summarise environmental performance
and to anticipate future key issues
(vi)
Review
and comment on work schedule and methodology as necessary
(vii)
Support
the Contractor for submissions required under the EP
(viii)
Investigate
complaints and propose corrective measures according to the agreed procedures
(ix)
Liaise
with the IEC on environmental performance
2.6.2
The
ET Leader shall keep a contemporaneous logbook for recording each and every
instance or circumstance or change of circumstances that may affect the
compliance with the recommendations of the EIA report. This logbook shall
be kept readily available for inspection by the IEC, and Director of
Environmental Protection (DEP) or his authorised officers.
3.1.1
Major air quality impact in construction phase would
arise from demolition of Old Bridge, excavation and concreting for construction
of New Bridges. With implementation of dust suppression measures, it is
anticipated that the dust impact would be minimal. Regular air quality
monitoring should be conducted at representative ASRs to ensure that relevant
air quality standard can be met.
3.1.2
In the operational phase, the bridges will serve as
walkway and cycle track. No air pollution will be generated from these
activities and therefore no operational phase air quality monitoring is
required.
3.1.3
This section outlines the requirements, methodology,
equipment and locations for monitoring air quality impacts during the
demolition of the Old Bridge and construction of the New Bridges in the
construction phase.
3.2.1
The ET shall evaluate the construction air quality
impact by conducting 1-hour and 24-hour Total Suspended Particulates (TSP)
measurements.
3.3.1
1-hour and 24-hour TSP levels will be measured in
accordance to the standard high volume sampling method as set out in the Title
40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix A.
3.3.2
Other than using high volume sampler, 1-hour TSP
levels can be measured alternatively by direct reading from portable dust
meters upon approval from ER. The meters should be capable of producing
comparable results as that by the high volume sampling method, to indicate
short event impacts.
High Volume Sampler
3.4.1
The ET shall provide sufficient number of high volume
samplers (HVSs) for measurement at different ASRs during each monitoring. The
HVSs shall comply with the following specifications for carrying out the 1-hour
and 24-hour TSP monitoring:
(a)
0.6 - 1.7 m3 per minute adjustable flow
range;
(b)
equipped with a timing / control device with +/- 5
minutes accuracy for 24 hours operation;
(c)
installed with elapsed-time meter with +/- 2 minutes
accuracy for 24 hours operation;
(d)
capable of providing a minimum exposed area of 406 cm2;
(e)
flow control accuracy: +/- 2.5% deviation over 24-hour
sampling period;
(f)
equipped with a shelter to protect the filter and
sampler;
(g)
incorporated with an electronic mass flow rate
controller or other equivalent devices;
(h)
equipped with a flow recorder for continuous
monitoring;
(i)
provided with a peaked roof inlet;
(j)
incorporated with a manometer;
(k)
able to hold and seal the filter paper to the sampler
housing at horizontal position;
(l)
equipped with easily changeable filter; and
(m)
capable of operating continuously for a 24-hour
period.
3.4.2
Clearly labelled calibration kit and filter papers
shall also be provided. The HVSs should be equipped with an electronic mass
flow controller and be calibrated against a traceable standard at regular
intervals.
3.4.3
Calibration should be conducted immediately after
installing the HVSs, and repeated on bi-monthly basis. The transfer standard
shall be traceable to the internationally recognised primary standard and be
calibrated annually. The concern parties such as IEC shall properly document
the calibration data for future reference. All the data should be converted into
standard temperature and pressure condition.
3.4.4
The flow-rate of HVSs shall be kept constant
throughout the sampling process. Both initial and final flow-rate (with the
filter in position) shall be recorded in the data sheet, as shown in Appendix B.
Direct Reading Meter
3.4.5
If the ET prefers to adopt direct reading method for
1-hour TSP, he should provide adequate support to the IEC for verifying the
capacity of the meter as with the HVSs in obtaining comparable measurements.
The meter shall be calibrated at regular intervals in accordance to the
specification in the manufacturer’s manual. The calibration certificates shall
be available to the IEC for checking upon request. The validity and accuracy of
the meter shall also be tested against the results by the HVS periodically.
Collection of Wind Data
3.4.6
For recording wind speed and wind direction, the ET
shall install wind data monitoring equipment near the dust monitoring
locations. The installation location shall be proposed by the ET and agreed
with the IEC. The installation and operation of the equipment shall meet the
following criteria:
(a)
The wind sensors should be installed 10 m above ground
so that they are clear of obstructions or turbulence caused by buildings.
(b)
The wind data should be captured by a data logger. The
data shall be downloaded for analysis at least once a month.
(c)
The wind data monitoring equipment should be
re-calibrated at least once every six months.
(d)
Wind direction should be divided into 16 sectors of
22.5 degrees each.
3.4.7
If agreed by the ER and the IEC, the ET may obtain
wind data using alternative method.
Laboratory Testing
3.4.8
Filter paper to be placed in the HVSs should have a
size of 8" x 10" and should be clean without any pinhole. Before
sampling, it should be labelled, and pre-weighed to 0.1 mg by a calibrated
electronic balance after being conditioned in a constant humidity for over 24
hours.
3.4.9
After sampling, the filter paper in the HVS will be
loaded with dust. The filter paper shall be collected and immediately
transferred to a clean, tightly sealed plastic bag for transporting to
laboratory. It shall be reconditioned in the constant humidity condition (as
before pre-weighing) for over 24 hours before weighing to 0.1 mg by a
calibrated electronic balance.
3.4.10
All samples should be kept in good condition for 6
months before disposal.
3.4.11
The testing laboratory should be HOKLAS accredited. It
should be clean and be able to maintain a stable temperature and humidity.
Measuring and conditioning instruments should be available for handling the
dust samples. It should be able to carry out result analysis, equipment
calibration and maintenance.
3.4.12
If a site or non-HOKLAS laboratory will be responsible
for testing, the laboratory equipment shall be approved by the ER and the
procedures shall be witnessed by the IEC. Any measurement performed by the
laboratory shall be demonstrated to the satisfaction of the ER and the IEC. The
IEC shall regularly audit the performance of the laboratory to ensure the
accuracy of testing results. The ET Leader shall provide the ER with one copy
of the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50),
Appendix A for his reference.
3.5.1
Two representative Air Quality Monitoring stations
(AMSs) are proposed as follows:
Table 3.1 Proposed
Dust Monitoring Stations
|
Monitoring
Stations
|
Location
|
|
|
|
|
|
|
3.5.2
The location of the stations can be found in Figure 3.1.
3.5.3
The status and locations of dust sensitive receivers
may change after this manual is issued. If this happened, the ET Leader shall
propose alternative monitoring locations taken into account the following
considerations and seek approval from the ER and the IEC:
(a)
locate at the site boundary or such locations close to
the major dust emission source;
(b)
locate close to the sensitive receivers; and
(c)
take account the prevailing meteorological conditions.
3.6.1
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:
(a)
a horizontal platform with appropriate support to
secure the samplers against gusty wind should be provided;
(b)
no two samplers should be placed less than 2 meters
apart;
(c)
the distance between the sampler and an obstacle, such
as buildings, must be at least twice the height that the obstacle protrudes
above the sampler;
(d)
a minimum of 2 meters of separation from walls,
parapets and penthouses is required for rooftop samplers;
(e)
a minimum of 2 meters separation from any supporting
structure, measured horizontally is required;
(f)
no furnace or incinerator flue is nearby;
(g)
airflow around the sampler is unrestricted;
(h)
the sampler is more than 20 meters from the dripline;
(i)
wire fence and gate to protect the sampler should not
cause any obstruction during monitoring;
(j)
permission must be obtained to set up samplers and to
access to monitoring stations; and
(k)
a secured electricity supply is required for samplers
to operate.
3.7.1
Baseline monitoring shall be conducted to determine
the existing air quality in terms of 1-hour and 24-hour TSP levels before
commencement of construction work. Measurement on 24-hour TSP for 14
consecutive days shall be conducted at all monitoring stations. At least 3 sets
of 1-hour TSP data shall also be collected every day during this period, at the
predicted time in which greatest impact is expected.
3.7.2
During baseline monitoring, there should have no major
construction or dust generating activities near the monitoring stations. The ET
shall propose a monitoring schedule to the IEC, so that he can conduct onsite
audit to ensure the accuracy of the measurement where necessary.
3.7.3
Alternative AMS that can give representative baseline
data may be proposed for ER and IEC’s approval with justifications.
3.7.4
In exceptional cases, when insufficient baseline
monitoring data or questionable results are obtained, the ET shall liaise with
the IEC and ER to agree on an appropriate set of data to be used as a baseline
reference and submit to EPD for approval.
3.7.5
The baseline monitoring data shall be reviewed once in
every three months. When there is seasonal change on ambient conditions, the
baseline condition may need to be updated. Repeated measurements shall be
conducted when there is no dust generating activity near the AMSs. If a change
in ambient condition is recorded, the baseline levels, hence the air quality
criteria should be revised accordingly and agreed with the IEC and EPD.
3.8.1
Impact monitoring shall be conducted throughout the
construction period at all AMSs. 24-hour TSP shall be sampled at least once in
every 6 days, while sampling for 1-hour TSP shall be at least 3 times in every
6 days when the highest dust impact takes place. Similar to baseline
monitoring, the ET shall submit a monitoring schedule to the IEC for auditing
the accuracy of the monitoring result where necessary.
3.8.2
The ET shall clearly define and strictly follow the
starting and ending time for 24-hour TSP monitoring for each AMS.
3.8.3
If exceedance of air quality criteria is recorded,
more frequent measurements shall be done within the specified timeframe in
accordance to the Action Plan. The additional monitoring shall be continued
until the excessive dust emission or the deterioration in air quality is
rectified, and upon agreement with the IEC.
3.9.1
The Air Quality Objective sets the statutory limit for
1-hour and 24-hour TSP levels, while the baseline monitoring results shall be
interpreted to derive the action levels.
Table 3.2 Action and
Limit Levels for Air Quality
|
Parameters
|
Action
|
Limit
|
|
24-hour
TSP Level in µg m-3
|
For
baseline level £ 200 µg m-3, Action level = (baseline level
* 1.3 + Limit level)/2;
For
baseline level > 200 µg m-3 Action level = Limit level
|
260 µg/m3
|
|
1-hour
TSP Level in µg m-3
|
For
baseline level £ 384 µg m-3, Action level = (baseline level
* 1.3 + Limit level)/2;
For
baseline level > 384 µg m-3, Action level = Limit level
|
500µg/m3
|
3.10.1
Should non-compliance of the air quality criteria occur, actions in
accordance with the Action Plan in Appendix C shall be carried out.
3.11.1
The EIA proposed a number of mitigation measures to be implemented in
construction phase, examples as follows:
Construction Phase
(a) Hoarding
of not less than 2.4 m high shall be erected from ground level to surround the
work area except for a site entrance or exit.
(b) Good housekeeping
to minimize dust generation, e.g. by properly handling and storing dusty
materials
(c) Adopt dust control
measures, such as dust suppression using water spray on exposed soil, in areas
with dusty construction activities and during material handling
(d) Minimize exposed
earth after completion of work in a certain area by hydroseeding, vegetating,
soil compacting or paving
(e) Cover materials on
trolleys before leaving the site
(f) Stockpiling should
be avoided. However, if found necessary, the materials should be covered by
impervious materials such as tarpaulin
3.11.2
Detailed mitigation measures are listed out in the EMIS in Appendix A. Implementation status and the effectiveness
of these measures shall be audited through regular site inspection.
4.1.1
In the construction phase, the major noise
impact will be arisen from the use of powered mechanical equipment. With the
proposed mitigation measures, construction noise
impact on the representative
noise sensitive receiver is predicted to comply
with the noise criteria. Regular monitoring of noise level should be carried
out at noise monitoring stations near representative sensitive receiver before
and throughout construction work to ensure that relevant noise standard can be
met.
4.1.2
The New Bridges
will serve as walkway and cycle bridge as the Old Bridge. No operational phase
noise monitoring is required.
4.1.3
In
this section, the equipment, requirements, monitoring locations, criteria and
protocols for the monitoring and audit of noise impacts during the construction
of the proposed New Bridges under the Project are presented.
4.2.1
Construction noise level shall be measured in terms
of the A-weighted equivalent continuous sound pressure level (Leq).
Leq 30min shall be used as the monitoring parameter for the time
period between 0700 and 1900 hours on normal weekdays. For all other time
periods, Leq 5min shall be employed for comparison with the Noise
Control Ordinance (NCO) criteria.
4.2.2
As supplementary information for data auditing,
statistical results such as L10 and L90 shall also be
obtained for reference.
4.3.1
Sound level meters shall be employed to measure the
construction noise level. It should comply with the International
Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type
1) specifications in accordance to the Technical Memorandum (TM) issued under
the NCO.
4.3.2
An acoustic calibrator shall be used to validate
the accuracy of the sound level meter before and after each noise measurement.
The calibrator can generate a known sound pressure level at a known frequency.
The noise record will only be accepted if the calibration level from before and
after the noise measurement agrees to within 1.0 dB.
4.3.3
Sufficient number of the above equipment shall be
provided by the ET, who will also be responsible for installation, operation,
maintenance and dismantlement. All equipment and instrumentation shall be
clearly labelled.
4.4.1
Noise measurement shall normally be at a point 1 m
from the exterior of the sensitive receiver building façade and be at a
position 1.2 m above the ground. If the normal monitoring position cannot be
accessed, an alternative position may be chosen, and a correction to the
measurements shall be made. For reference, a correction of +3 dB(A) shall be
made to the free field measurements. The ET shall agree with the IEC on the
monitoring position and the corrections adopted. The agreed position shall be
chosen in subsequent baseline and impact monitoring.
4.4.2
Noise measurements should be made in accordance
with standard acoustical principles and practices in relation to weather
conditions.
4.5.1
One
representative Noise Monitoring Station (NMS) is proposed near the
work site as follows:
Table 4.1
Proposed Construction Noise Monitoring Location
|
Monitoring
Stations
|
Location
|
|
|
|
4.5.2
The location of the station can be found in Figure
3.1.
4.5.3
The status and location of noise sensitive receiver
may change after this manual is issued. If this happened, the ET Leader shall
propose alternative monitoring location taken into account the following
considerations and seek approval from the ER and the IEC:
(a) locate
close to the major site activities which are likely to have noise impacts;
(b) locate
close to the most affected existing NSR; and
(c) take
account the possibility of minimizing disturbance to occupants at the NSR
during monitoring.
4.6.1
Baseline measurement shall be conducted to
determine the background noise level before commencement of work. Daily
measurement of A-weighted levels Leq, L10 and L90
shall be conducted for at least two weeks. The sample period shall be 30
minutes between 0700 and 1900.
4.6.2
During the baseline monitoring, there should have
no major construction or noise generating activities near the monitoring
stations. The ET shall propose a monitoring schedule to the IEC so that he can
conduct onsite audit to ensure the accuracy of the measurement where necessary.
4.6.3
Alternative NMS that can give representative
baseline data may be proposed for ER and IEC’s approval with justifications.
4.6.4
In exceptional cases, when insufficient baseline
monitoring data or questionable results are obtained, the ET shall liaise with
the IEC and ER to agree on an appropriate set of data to be used as a baseline
reference and submit to EPD for approval.
4.7.1
For daytime construction work on normal weekdays
(0700-1900 Monday to Saturday), one set of 30-min measurement shall be carried
out at each NMS every week. Measurement procedures shall be referred to the
Noise Control Ordinance-TM. Similar to baseline monitoring, the ET shall submit
a monitoring schedule to the IEC beforehand.
4.7.2
If noise exceedance is recorded, additional noise
monitoring shall be conducted in accordance to the Event Action Plan. Additional monitoring shall only be
considered as not necessary if the exceedance is
being rectified or proved to be from source other than the project construction
work.
4.7.3
Sample data sheet can be found in Appendix
B.
4.8.1
The EIAO-TM sets the statutory limit for noise
level produced during construction work.
Table 4.2 Action and
Limit Levels for Noise
|
Time Period
|
Action Level
|
Limit Level
|
|
0700-1900 hrs on normal
weekdays
|
|
75dB(A)
|
4.9.1
Should non-compliance of the noise criteria occur,
actions in accordance with the Action Plan in Appendix C shall be
carried out.
4.10.1
The EIA proposed a number of mitigation measures to
be implemented in construction phase, examples as follows:
(a) Adopt good site
practice, such as regular maintenance of plant equipment, throttle down unused
machines
(b) Use Quality Powered
Mechanical Equipment (QPME)
(c) Erect 3m
high mobile barriers with skid footing and a small cantilevered upper portion
within a few meters of stationary plants and within about 5m of more mobile plant such as hydraulic breaker. The minimum surface density of the movable noise barrier is 7 kg/m2, and with special design
(e.g. with noise absorbing material) where necessary.
(d) Orient noisy plant equipment away from NSR
(e) Should there be concurrent project in the vicinity, continuous
discussion between contractors shall be conducted to plan the location and
programme of construction work to minimize cumulative impact
4.10.2
Detailed mitigation measures are listed out in the
EMIS in Appendix A.
Implementation status and the effectiveness of these measures shall be audited
through regular site inspection.
5.1.1
Potential
water quality impacts arising from the construction activities are expected due
to falling
of debris to Wang Tong River, leakage of debris from cofferdam to Wang Tong
River, surface runoff, and sewage generated
from workforce. These would be minimized by implementing appropriate mitigation
measures and good site management practices.
5.1.2
Monitoring
is proposed in construction phase to keep track of the water quality, in order
to identify any unacceptable impact on sensitive receivers. Site audit shall be
conducted regularly to ensure that mitigation measures recommended in the EIA
Report and this EM&A Manual are implemented properly.
5.1.3
No
water quality impact is expected from the use of New Bridges as walkway and
cycle track in the operational phase. Therefore, no water quality monitoring is
required.
Monitoring Requirement
5.2.1
Regular
monitoring of water quality should be carried out at water quality monitoring
stations (WMSs) downstream to the construction point (impact station) and
upstream to the construction site (control stations) before and throughout the
construction period.
Monitoring
Parameters
5.2.2
Suspended solids (SS) and in-situ water quality
data (temperature, pH, turbidity, water depth, salinity, dissolved oxygen and
percentage of saturation) shall be analysed/measured.
5.2.3
Other relevant data, including monitoring
location/position, time, tidal stages, weather conditions and any special
observation or works in the vicinity that may affect the monitoring results,
should also be recorded.
5.2.4
To ensure the robustness of in-situ measurement,
parameters shall be measured in duplicate. In case the difference between
duplicates is larger than 25%, a third set of measurement shall be carried out.
5.2.5
A sample data sheet can be found in Appendix B.
Monitoring Location
5.2.6
8 water monitoring stations (WMS) are proposed
along Wang Tong River and in Silvermine Bay. As the direction of water flow is
influenced by stream water discharge and tidal action, each monitoring station
will serve as either impact or control station under different tidal periods.
Impact stations are located downstream to the construction site to measure any
elevation of pollutant levels (e.g. SS level) due to proposed work. Control
stations are located upstream of construction site to establish baseline level.
The location of the stations can be found in Figure 5.1.
Table 5.1 Marine Water Monitoring Locations in Construction Phase
|
Station
|
Description
|
Monitoring Period
|
Monitoring Station
|
Easting
|
Northing
|
|
W1
|
Wang
Tong River
(Major
tributary)
|
Mid-Flood
|
Impact
|
817747
|
814519
|
|
Mid-Ebb
|
Control
|
|
W2
|
Wang
Tong River
(Major
tributary)
|
Mid-Flood
|
Impact
|
817775
|
814471
|
|
Mid-Ebb
|
Control
|
|
W3
|
Wang
Tong River
(Minor
tributary to
Tai Wai Yuen)
|
Mid-Flood
|
Impact
|
817803
|
814537
|
|
Mid-Ebb
|
Control
|
|
W4
|
Wang
Tong River
(Minor
tributary to
Tai Wai Yuen)
|
Mid-Flood
|
Impact
|
817825
|
814481
|
|
Mid-Ebb
|
Control
|
|
W5
|
Silvermine
Bay
(Near Silvermine Bay Beach)
|
Mid-Flood
|
Control
|
817909
|
814452
|
|
Mid-Ebb
|
Impact
|
|
W6
|
Silvermine
Bay
(Near Silvermine Bay Beach)
|
Mid-Flood
|
Control
|
818024
|
814447
|
|
Mid-Ebb
|
Impact
|
|
W7
|
Silvermine
Bay
(Open Water)
|
Mid-Flood
|
Control
|
818061
|
814277
|
|
Mid-Ebb
|
Impact
|
|
W8
|
Silvermine
Bay
(Open Water)
|
Mid-Flood
|
Control
|
818224
|
814444
|
|
Mid-Ebb
|
Impact
|
5.2.7
Water samples shall be extracted at 1m below
surface, 1m above seabed and at the mid-depth level at where the water depth is
at least 6m. However, if the water depth is less than 3m, water samples shall
only be collected at the mid-depth level. For stations with depth less than 6m,
the mid-depth sample can be omitted.
5.2.8
As the water depth in Wang Tong River can be
shallow, sampling work shall be conducted with caution to avoid disturbing the
bottom sediment during movement and water extraction.
Monitoring Frequency
5.2.9
Baseline Monitoring shall be carried out 3 days per
week, at mid-flood and mid-ebb tides (within ± 1.75 hour of the predicted
time), for a period of 4 weeks prior to the commencement of construction works.
The interval between two sets of monitoring shall not be less than 36 hours.
The monitoring period should avoid concurrent marine project in the vicinity.
5.2.10
Impact monitoring shall also be conducted at the
same frequency throughout the whole construction period. In case exceedance of
Action/Limit Level is recorded, the frequency shall be increased as per the
Event and Action Plan.
Construction Phase Site Inspection
5.2.11
Weekly site audit is recommended to monitor the
implementation of the proposed water quality mitigation measures and to check
the Contractor’s work practice on preventing water pollution during
construction phase.
5.2.12
Should water pollution is observed (e.g. discharge
of silty water into storm drains), the ET should record the environmental
deficiency for investigation. The Contractor should be notified and responsible
for carrying out rectification work immediately. The ET shall re-inspect the
site and review the effectiveness of the remedial measure performed until
satisfaction. The Contractor shall implement preventive measure(s) to avoid the
same problem.
Position System
5.3.1
A calibrated hand held Global Positioning System
(GPS) device shall be used during water quality monitoring. The GPS device
shall be calibrated at checkpoint (e.g. Quarry Bay Survey Nail at Easting
840683.49 and Northing 816709.55) before taking samples and in-situ
measurements. This would ensure that monitoring works are conducted in proposed
locations. .
Water Depth Detector
5.3.2
A portable, battery-operated echo sounder shall be
used for the determination of water depth at each designated monitoring
station.
Salinity
5.3.3
A portable salinometer which capable of recording
salinity within the range of 0-40 % shall be used for salinity measurements.
Dissolved Oxygen (DO) and Temperature Measuring Equipment
5.3.4
The instrument for measuring dissolved oxygen and
temperature shall be portable and weatherproof complete with cable, sensor,
comprehensive operation manuals and using DC power source. It shall be capable
of measuring:
·
A
dissolved oxygen level in the range of 0-20 mg/L and 0-200% saturation; and
·
A
temperature of 0-45 degree Celsius.
5.3.5
It shall have a membrane electrode with automatic
temperature compensation complete with a cable.
5.3.6
Sufficient stocks of spare electrodes and cables
shall be available for replacement where necessary.
5.3.7
Salinity compensation shall be built-in in the DO
measuring equipment.
Turbidity Measurement Equipment
5.3.8
Nephelometric method shall be used in measuring
turbidity in-situ. The instrument shall be portable, weatherproof complete with
a cable, sensor, comprehensive operation manuals and DC power source. It shall
have a photoelectric sensor capable of measuring turbidity between 0-1000 NTU
and complete with a cable with at least 25 m in length. The meter shall be
calibrated in order to establish the relationship between NTU units and
suspended solids level. Turbidity shall be measured on split water sample
collected from the same depths of suspended solid samples.
pH
5.3.9
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 pH 0 to 14.
Standard buffer solutions of at least pH 7 and pH 10 shall
be used for
calibrating the instrument before and after use.
Sampler
5.3.10
A water sampler, consisting of a transparent PVC or
glass cylinder of a capacity of not less than two litres which can be
effectively sealed with cups at both ends shall be used. The water 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.
Sample Container and Storage
5.3.11
After sampling, samples shall be transferred and
stored in high density polythene bottles with no preservatives added, stored in
4°C without
being frozen, and delivered to the laboratory for analysis as soon as possible.
Each sample should have sufficient volume for robust analysis.
Calibration of In-situ Instruments
5.3.12
All in-situ monitoring instruments shall be
checked, calibrated and certified by a laboratory accredited under HOKLAS or
other international accreditation scheme before use, and be subsequently
re-calibrated at 3 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 event.
5.3.13
For the on-site calibration of field equipment
(Multi-parameter Water Quality System), the BS 1427:2009, "Guide to
on-site test methods for the analysis of waters" shall be observed.
5.3.14
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 if
some equipment is under maintenance, calibration, etc.
Laboratory Analysis
5.3.15
The testing of suspended solids shall be conducted
by a HOKLAS accredited laboratory with comprehensive quality assurance and
control procedures in place in order to ensure the quality and the consistency
of results. Analytical method and detection limit shall follow APHA 17e 2540 D
or equivalent, subject to agreement with EPD.
Table 5.2 Analytical method and detection limit for water samples
|
Determinant
|
Detection
Limit
|
Method
Reference
|
|
Suspended Solids
|
0.5 mg/L
|
APHA 17e 2540 D
|
5.4.1
The following table listed out the criteria for
relevant water quality parameters during construction phase monitoring work.
Table 5.3 Action and Limit Levels
|
Parameters
|
Action Level
|
Limit Level
|
|
DO in mg/ L (Surface, Middle &
Bottom)
|
Surface & Middle: 5 percentile of baseline data for surface and middle layers
Bottom: 5 percentile of baseline data for bottom layer.
|
Surface & Middle: 4 mg/L or 1 percentile of baseline data for surface and middle
layers.
Bottom: 2 mg/L or 1 percentile of baseline data for bottom layer.
|
|
SS in mg/ L (depth-averaged)
|
95 percentile of baseline data or
120% of upstream control station's SS at the same tide of the same day.
|
99 percentile of baseline data or
130% of upstream control station's SS at the same tide of the same day.
|
|
Turbidity in NTU (depth-averaged)
|
95 percentile of baseline data or
120% of upstream control station's turbidity at the same tide of the same
day.
|
99 percentile of baseline or 130%
of upstream control station's turbidity at the same tide of the same day.
|
5.5.1
Should non-compliance of the water quality criteria
occur, actions in accordance with the Action Plan in Appendix
C shall be carried out.
5.6.1
Examples of construction phase mitigation measures
are shown as follows:
(a)
Schedule works in water in dry season as far as possible (e.g.
demolition of old pier, construction of abutment)
(b)
Construct abutment of the bridge within cofferdam
(c)
Demolish existing pier within waterproof casing
(d)
Construct temporary platform above water to prevent falling of debris
during demolition and construction of bridges
(e)
Well manage construction materials, stockpiles and
chemicals for proper storage and usage and to prevent accumulation onsite. Keep
them away from the river and sea.
(f)
Immediately clean up contaminated soil upon chemical
and oil leakage
(g)
Store fuels, chemicals and waste at designated area
with locks and bunds
(h)
Register as chemical waste producer
(i)
Settle surface runoff in sedimentation tank prior to
discharge
(j)
Cover slope and loose materials with tarpaulin before
rainstorm and inspect the area afterwards
(k)
Cover manhole to prevent silty runoff from entering
the foul sewer
5.6.2
Detailed mitigation measures are listed out in the
EMIS in Appendix
A. Implementation status and the effectiveness
of these measures shall be audited through regular site inspection.
6.1.1
This
project is expected to generate inert and non-inert construction and demolition
(C&D) waste from demolition of Old Bridge, excavation/dredging for pile cap
and unused construction materials; marine sediment extracted from minipile;
chemical waste from plant maintenance; and general refuse from workers. No adverse waste
impact is expected if the mitigation measures are implemented properly. No
operational waste is expected.
6.1.2
Land use in the vicinity of the Site includes
residential, commercial (hotel) and bathing beach. Active agriculture in the
past has now subsided. No industrial activity that may cause land contamination
was identified. Previous land use as pig farm at the now Silvermine Beach
Resort is evaluated to cause low contamination potential at the work site. No
unacceptable land contamination impact is expected and no EM&A is proposed.
6.2.1
The
Contractor should apply relevant licences/permits for waste disposal under the
following regulations and ordinances:
(a)
Chemical Waste Permits/licenses under the Waste
Disposal Ordinance (Cap 354);
(b)
Public Dumping Licence under the Land (Miscellaneous
Provisions) Ordinance (Cap 28);
(c)
Effluent Discharge Licence under the Water Pollution
Control Ordinance.
6.2.2
Reference
should be made to EPD’s booklets on licences/permits. The Contractor shall also
document recycling receipts/ disposal record to keep track of waste movement.
The ET shall check with the Contractor that these licences/permits have been
obtained. He should also review the above documentations regularly to ensure
compliance with legislations and specifications.
6.3.1
The
contractor should formulate waste management measures on waste minimization,
storage, handling and disposal in a Waste Management Plan as part of
Environmental Management Plan in accordance to ETWB TC (W) No.19/2005 for
construction phase. Mitigation measures proposed in the EIA Report and the
EM&A Manual should be adopted.
6.4.1
Regular
site audit shall be conducted by the ET to check the implementation status and
evaluate the effectiveness of the proposed mitigation measures.
6.5.1
The
EIA proposed a number of construction phase mitigation measures, examples as
follows:
(a) Reuse C&D waste
onsite and dispose excess uncontaminated ones to public fill
(b) Provide sufficient
waste collection points for general refuse and regularly maintained to avoid
accumulation. Dispose the waste at waste transfer or disposal facilities
(c) Provide training to
workers on site cleanliness, waste management (waste reduction, reuse and
recycle) and chemical handling procedures
(d) Excavated marine sediment should be treated
by cement solidification and backfilled on land or disposed as public fill as
the last resort. Alternatively, the solidified sediment
shall be delivered to public fill reception facilities for beneficial reuse as
the last resort. No marine dumping will be required.
6.5.2
Detailed
mitigation measures are listed out in the EMIS in Appendix A. Implementation status and the effectiveness
of these measures shall be audited through regular site inspection.
7.1.1
The proposed
Project will cause minor permanent habitat loss of sandy shore above high water
mark. Indirect water quality impact which may arise from falling of debris from
demolition and construction work, surface runoff or chemical leakage would be
minor in construction phase. Use of powered plant equipment may bring minor
noise disturbance on wildlife. No ecological impact is expected in the
operational phase.
7.2.1
Construction
noise and water quality mitigation measures proposed in the previous sections
will be applicable to terrestrial and freshwater ecology. In addition, the following
mitigation measures shall be carried out:
(a) To minimize direct impact on the breeding activity of Black-collared
Starling, before site clearance, the work area should be inspected by ecologist to confirm no active bird nest is present. If any active bird nest is
identified, suitable size of buffer area should be established until the nest
is abandoned.
(b) Erection of hoarding, fencing or provision of clear demarcation of work
zones to remind workers not to damage area outside the work boundary
7.2.2
With
proper implementation of mitigation measures, un-acceptable residual impact is
not expected. Detailed mitigation measures are listed out in the EMIS in Appendix A. Implementation status shall be audited
through regular site inspection.
8.1.1
The
proposed development will generate some unavoidable residual landscape and
visual impacts which are identified and addressed in the LVIA with the aim of
avoiding (where practicable) and at the very least, minimising such impacts to
within acceptable levels. The main impacts will be the loss of existing trees
and the introduction of a new, larger bridge structure to the locality. There are opportunities, during the project’s
design, construction and operation stages, for incorporating mitigation
measures which will contribute to reducing landscape and visual impacts. These
include reducing the footprint of the construction phase impacts, existing tree
protection and designing and implementing a new bridge which is visually
integrated into the existing environment.
8.2.1
The
Contractor shall employ a professionally qualified Registered Landscape
Architect (RLA) to supervise and monitor the implementation of the landscape
and visual mitigation measures during the construction and
maintenance/establishment periods. This is necessary to ensure that all the
recommended landscape and visual mitigation measures under Chapter 8 of the EIA
are effectively implemented.
8.2.2
Prior
to the commencement of construction works, a baseline monitoring report shall
be prepared to check, record and re-confirm the status of the Landscape
Resources and Landscape Character Areas within the works area. The report shall review the proposed
mitigation measures and assess their feasibility with reference to the
operational requirements of the detailed project works. Any potential conflicts between proposed
mitigation measures and the proposed works shall be resolved at an early stage
(prior to construction) and any necessary changes to the mitigation measures
shall be incorporated into the detailed design.
8.2.3
During the construction phase, the
implementation of the mitigation measures shall be monitored including minimisation of the works footprint,
erection of appropriate screen hoardings, ensuring that those existing trees
earmarked for retention on site or transplanting are protected, that
compensatory planting works are correctly implemented and that appropriate
building materials and finishes are incorporated. Site inspections by
the appointed RLA shall be undertaken at monthly intervals to closely monitor all these aspects of the
work. Inspection
findings shall be logged in a site monitoring report with any discrepancies or
concerns regarding the implementation and effectiveness of mitigation measures
highlighted.
8.3.1
The
compensatory tree planting required to off-set the loss of existing trees
should be checked during the 12-month Establishment Period by a professionally
qualified Registered Landscape Architect (RLA) engaged by Contractor. The RLA
should check the planting on a bi-monthly basis to ensure that it has become
established and self-sustainable in order to provide long term landscape and
visual mitigation as intended. The trees shall be managed and maintained by HyD
until such time the trees are successfully handed over to Leisure and Cultural
Services Department (LCSD) for future maintenance, subject to agreement with
LCSD in the detailed design stage.
8.3.2
Hardworks
elements including finishes and paint colours should also be monitored and
checked that they are being maintained and are achieving their mitigation
function. These should be checked on a
quarterly basis by the Contractor during the defects liability period and
yearly thereafter by the future maintenance agent (Highways Department). No
monitoring and audit under the EM&A programme is required.
8.4.1
Detailed landscape and visual mitigation measures are listed out
in the EMIS in Appendix A.
The implementation status and the effectiveness of these measures shall be
audited through regular site inspection at the frequencies stated above.
9.1.1
While
a number of mitigation measures are proposed in the EIA report, regular site
inspection is recommended for direct observation of the implementation progress
to ensure that measures are properly implemented. Through a well-established
action and reporting system, additional pollution control measures to
identified environmental deficiency can be proposed and carried out at early
stage. Site inspection is a useful way to enforce the environmental protection
requirements onsite during construction.
9.2.1
The
ET Leader will be responsible for the site environmental audit. He will design
the environmental site inspection, deficiency and action reporting system and
conduct regular site inspection. He should prepare a proposal on the site
inspection and reporting methodology to the Contractor for agreement and to the
ER for approval.
9.2.2
Weekly
site inspection shall be performed by the ET within the site where
environmental protection measures will be implemented and also offsite where
the construction activities may directly or indirectly be impacted upon. The
following shall be noted during the inspection:
(a) environmental
protection and pollution control mitigation measures proposed in the EIA,
contract specification, EP and this Manual
(b) works progress and
programme
(c) ongoing results of
the EM&A programme
(d) individual works
methodology proposals (including associated pollution control measures)
(e) relevant
environmental protection and pollution control laws
(f) previous site
inspection results
9.2.3
The
Contractor shall inform the ET on any update of all relevant information on the
construction contract necessary for him to carry out the site inspection. After
each site inspection, the ET shall submit an inspection report to the
Contractor and the ER within 24 hours. It should include inspection result on
any identification of environmental deficiency and corresponding mitigation
recommendations for taking immediate rectification action. Follow up of
identified problem from the previous inspection shall also be included. The
Contractor shall report on any rectification actions after the site inspection
in accordance to the procedures and timeframe proposed by the ET in the
environmental site inspection, deficiency and action reporting system.
9.2.4
If
significant environmental issue is identified, additional site inspection shall
be performed. This may also be required upon receipt or during investigation of
environmental complaint in accordance to the Action Plan for environmental
monitoring and audit.
9.3.1
The
environmental protection and pollution control laws in Hong Kong and project
contract stipulate environmental protection and pollution control requirement
for construction activities.
9.3.2
As
such, the Contractor should submit all work method statements for ER’s approval
and ET Leader’s review on environmental compliance with the contractual
requirements. Sufficient environmental protection and pollution control
measures shall be demonstrated in the method statement.
9.3.3
The
ET Leader should also check that the work progress and programme can comply
with legal requirement on environmental terms and to prevent violation in the
future.
9.3.4
The
Contractor shall regularly copy relevant documents to the ET for checking,
including but not limited to updated Work Progress Reports, updated Works
Programme, application letters for different licence/permits under the
environmental protection laws, and all valid licences/permits. The site diary
shall also be available for inspection upon ET Leader’s request.
9.3.5
Should
any non-compliance with the contractual and legislative requirements is identified
after reviewing the documents, the ET should notify the ER and Contractor so
that follow-up actions can be taken. He should also inform the ER and
Contractor if the current status on licence/permit application and any
environmental protection and pollution control preparation works may not meet
the works programme or the construction work may lead to potential violation of
environmental protection and pollution control requirements in due course.
9.3.6
The
Contractor shall carry out remedial actions immediately upon receipt of ET’s
advice. The ER shall check with the Contractor to ensure that appropriate
actions has been taken accordingly and can satisfy the environmental protection
and pollution control requirement.
9.4.1
Upon
receipt of complaint, the ET shall be notified and investigation work shall be
undertaken. He shall follow the procedures as listed below:
(a) log complaint and
date of receipt on to the complaint database
(b) investigate the
complaint to determine its validity, and to identify if the problem is caused
by work activities
(c) if the complaint is
proved valid and due to works, formulate corresponding mitigation measures with
the IEC
(d) advise the
Contractor on any rectification work required
(e) evaluate the
mitigation implementation progress and the updated situation
(f) if the complaint is
transferred from the EPD, submit an interim report on the complaint
investigation and remediation progress to the EPD within the time frame
assigned by the EPD
(g) conduct additional
monitoring and audit to verify the situation if necessary, and to determine any
valid reason that the complaint will not recur
(h) respond to the
complainant by reporting the investigation result and follow-up actions taken
(within the time frame set by the EPD if the complaint is made by the EPD)
(i) record the
complaint, investigation, the subsequent actions and results in the monthly
EM&A reports
9.4.2
The
Contractor and ER should provide necessary information and assistance to the ET
for completing the investigation work. The Contractor shall implement any
identified mitigation measures immediately and the ER shall ensure that the
work has been carried out accordingly.
10.1.1
The
ET shall prepare baseline monitoring report, monthly EM&A reports,
quarterly EM&A report and final EM&A report. They shall be submitted to
the EPD in paper and electronic formats in timely order.
10.2.1
Baseline
monitoring of air quality, noise and water quality are proposed. The baseline monitoring
report shall be submitted within 10 workings days after completion of the
monitoring work. The recipients include the IEC, Contractor and ER. It should
first be verified by the IEC before formal submission to the EPD. The ET shall
liaise with the relevant parties on the number of copies required. The report
format and monitoring data format shall be agreed with the EPD prior to
submission. The baseline monitoring report generally includes but not limited
to the following:
(a) up to half a page
executive summary;
(b) brief project
background information;
(c) drawings showing
locations of the baseline monitoring stations;
(d) monitoring results
(in both hard and soft copies) together with the following information:
a. monitoring
methodology;
b. equipment used and
calibration details;
c. parameters
monitored;
d. monitoring
locations (and depth);
e. monitoring date,
time, frequency and duration;
f. quality assurance
(QA) / quality control (QC) results and detection limits;
(e) details of
influencing factors, including:
a. major activities,
if any, being carried out on the site during the period;
b. weather conditions
during the period; and
c. other factors which
might affect results;
(f) determination of
the Action and Limit Levels for each monitoring parameter and statistical
analysis of the baseline data;
(g) revisions for
inclusion in the EM&A Manual; and
(h) comments,
recommendations and conclusions.
10.3.1
The
ET Leader shall prepare monthly EM&A reports which summarize the result and
findings in all EM&A work conducted in accordance to the Manual, such as
monitoring and site inspection. It shall be submitted within 10 workings days
of the end of each reporting month, with the first report due in the month
after construction commences. The recipients include the IEC, Contractor, ER and
the EPD. It should first be verified by the IEC before formal submission. The
ET shall liaise with the relevant parties on the exact number of copies
required and the report format for both paper and electronic format prior to
submission of the first EM&A report.
10.3.2
As
there may be changes in surrounding environment and nature of work in progress,
the ET Leader shall review and update the number and location of monitoring
stations and parameters to be monitored every 6 months or on as needed basis.
10.4.1
The
first EM&A report generally includes but not limited to the following:
(a) Executive summary
(1-2 pages):
a. breaches of Action
and Limit levels;
b. complaint log;
c. notifications of
any summons and successful prosecutions;
d. reporting changes;
and
e. future key issues.
(b) Basic project
information:
a. project
organisation including key personnel contact names and telephone numbers;
b. construction
programme;
c. management
structure, and
d. works undertaken
during the month
(c) Environmental
status:
a. works undertaken
during the month with illustrations (such as location of works); and
b. 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)
(d) A brief summary of
EM&A requirements including:
a. all monitoring
parameters;
b. environmental
quality performance limits (Action and Limit levels);
c. Event and Action
Plans;
d. environmental
mitigation measures, as recommended in the project EIA Report; and
e. environmental
requirements in contract documents;
(e) Implementation
status:
a. advice on the
implementation status of environmental protection and pollution control /
mitigation measures, as recommended in the project EIA Report;
(f) Monitoring results
(in both hard and diskette copies) together with the following information:
a. monitoring
methodology;
b. equipment used and
calibration details;
c. parameters
monitored;
d. monitoring
locations;
e. monitoring date,
time, frequency, and duration;
f. weather conditions
during the period;
g. major activities
being carried out on site during the period;
h. any other factors
which might affect the monitoring results; and
i.
QA/QC results and detection limits;
(g) Report on
non-compliance, complaints, and notifications of summons and successful
prosecutions:
a. record of all
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels);
b. 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;
c. 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;
d. review of the
reasons for and the implications of non-compliance, complaints, summons and
prosecutions including review of pollution sources and working procedures; and
e. description of the
actions taken in the event of non-compliance and deficiency reporting and any
follow-up procedures related to earlier non-compliance;
(h) Others
a. an account of the
future key issues as reviewed from the works programme and work method
statements;
b. advice on the solid
and liquid waste management status; and
c. comments (for
examples, effectiveness and efficiency of the mitigation measures),
recommendations (for example, any improvement in the EM&A programme) and
conclusions.
10.5.1
Subsequent
EM&A report generally includes but not limited to the following:
(a) Executive summary
(1 - 2 pages):
a. breaches of Action
and Limit levels;
b. complaints log;
c. notifications of
any summons and successful prosecutions;
d. reporting changes;
and
e. future key issues.
(b) Basic project
Information:
a. project
organization including key personnel contact names and telephone numbers;
b. programme;
c. management
structure; and
d. works undertaken
during the month.
(c) Environmental
status:
a. works undertaken
during the month with illustrations (such as location of works etc.); and
b. drawing showing the
project area, any environmental sensitive receivers and the locations of the
monitoring and control stations.
(d) Implementation
status:
a. advice on the
implementation status of environmental protection and pollution control /
mitigation measures, as recommended in the project EIA;
(e) Monitoring results
(in both hard and diskette copies) together with the following information:
a. monitoring
methodology;
b. equipment used and
calibration details;
c. parameters
monitored;
d. monitoring
locations;
e. monitoring date,
time, frequency, and duration;
f. weather conditions
during the period;
g. major activities
being carried out on site during the period;
h. any other factors
which might affect the monitoring results; and
i.
QA / QC results and detection limits.
(f) Report on
non-compliance, complaints, and notifications of summons and successful
prosecutions:
a. record of all
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels);
b. 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;
c. 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;
d. review of the
reasons for and the implications of non-compliance, complaints, summons and
prosecutions including review of pollution sources and working procedures; and
e. description of the
actions taken in the event of non-compliance and deficiency reporting and any
follow-up procedures related to earlier non-compliance.
(g) Others
a. an account of the
future key issues as reviewed from the works programme and work method
statements;
b. advice on the solid
and liquid waste management status; and
c. comments (for examples,
effectiveness and efficiency of the mitigation measures), recommendations (for
example, any improvement in the EM&A programme) and conclusions.
(h) Appendix
a. Action and Limit
levels;
b. graphical plots of
trends of monitored parameters at key stations over the past four reporting
periods for representative monitoring stations annotated against the following:
i.
major activities being carried out on site during the
period;
ii.
weather conditions during the period; and
iii.
any other factors that might affect the monitoring
results.
c. monitoring schedule
for the present and next reporting period;
d. cumulative
statistics on complaints, notifications of summons and successful prosecutions;
and
e. outstanding issues
and deficiencies.
10.6.1
The
quarterly EM&A summary report shall consist of around 5 pages (3 pages of
text and tables and 2 pages of figures). It generally includes but not limited
to the following:
(a) up to half a page
executive summary;
(b) basic project
information:
a. a synopsis of the project organisation,
programme;
b. contacts of key
management;
c. proponents'
contacts and any hotline telephone number for the public to make enquiries; and
d. a synopsis of works
undertaken during the quarter.
(c) a brief summary of
EM&A requirements:
a. monitoring
parameters;
b. environmental
quality performance limits (Action and Limit Levels); and
c. environmental
mitigation measures, as recommended in the EIA Report;
(d) environmental
status:
a. a synopsis of work
undertaken during the quarter;
b. drawings showing
the project area, any environmental sensitive receivers and the locations of
the monitoring and control stations;
(e) implementation
status:
a.
advice on the implementation status of environmental
protection and pollution control/mitigation measures, as recommended in the EIA
report, summarised in the updated implementation schedule;
(f) graphical plots of
the trends of monitored parameters over the past 4 months (the last month of
the previous quarter and the present quarter) for representative monitoring
stations annotated against;
a.
the major activities being carried out on site during
the period;
b.
weather conditions during the period; and
c.
any other factors which might affect the monitoring
results;
(g) advice on the solid
and liquid waste management status;
(h) summary of
non-compliance
a.
a summary of non-compliance (exceedances) of the
environmental quality performance limits (Action and Limit Levels);
b.
a brief review of the reasons for and the implications
of non-compliance including review of pollution sources and working procedures;
c.
a summary description of the actions taken in the
event of non-compliance and any follow-up procedures related to earlier
non-compliance;
d.
a summary record of all complaints received (written
or verbal) for each media, liaison and consultation undertaken, actions and
follow-up procedures taken;
(i) comments (e.g.
effectiveness and efficiency of the mitigation measures), recommendations (e.g.
any improvement in the EM&A programme) and conclusions for the quarter; and
10.7.1
A
Final EM&A report shall be prepared summarizing the results and findings of
the EM&A works throughout the construction period. It should be submitted
within 14 working days after project completion. It generally includes but not
limited to the following:
(a) An executive
summary;
(b) Drawings showing
the project area, any environmental sensitive receivers and the locations of
the monitoring and control stations;
(c) Basic project
information:
a. a synopsis of the
project organisation;
b. contacts of key
management; and
c. a synopsis of work
undertaken during the entire construction period.
(d) A brief summary of
EM&A requirements:
a. monitoring
parameters;
b. environmental
quality performance limits (Action and Limit levels); and
c. environmental
mitigation measures, as recommended in the project EIA Report;
d. Event and Action
Plans.
(e) A summary of the
implementation status of environmental protection and pollution
control/mitigation measures, as recommended in the project EIA Report,
summarised in the updated implementation schedule;
(f) Graphical plots of
the trends of monitored parameters over the construction period for
representative monitoring stations, including the post-project monitoring
annotated against:
a. the major
activities being carried out on site during the period;
b. weather conditions
during the period; and
c. any other factors
which might affect the monitoring results.
(g) Summary of
non-compliance:
a. a summary of
non-compliance (exceedances) of the environmental quality performance limits
(Action and Limit levels);
b. a brief review of
the reasons for and the implications of non-compliance including review of
pollution sources and working procedures as appropriate;
c. a summary
description of the actions taken in the event of non-compliance;
d. a summary record of
notifications of summons and successful prosecutions for breaches of the
current environmental protection/pollution control legislations, locations and
nature of the breaches, investigation, follow-up actions taken and results;
(h) A review of the
validity of EIA predictions through comparison with the monitoring data and
identification of shortcomings in EIA recommendations;
(i) A review of the
effectiveness and cost-effectiveness of the monitoring methodology
(j) A review of the
effectiveness and efficiency of the mitigation measures and of the performance
of the overall EM&A programme;
(k) Recommendations for
improvement;
(l) Evaluation on the
return of environmental condition the baseline or predicted conditions in the
EIA Report; and
(m) Conclusion on the
environmental acceptability of the project.
10.8.1
The
ET shall keep the site documents (such as monitoring field records, site
inspection forms etc.) in order and make available for inspection upon request.
These documents do not form part of the EM&A report. The monitoring data
should also be input into electronic format for checking upon request. All
documents and data shall be kept for at least one year after completion of the
construction contract.
10.9.1
Should
any exceedance in environmental quality performance limit be recorded, the ET
Leader should immediately inform the IEC, ER, Contractor and EPD as appropriate
in accordance to the Event and Action Plan. He should advise to the IEC, ER,
Contractor and EPD the investigation result, remediation actions performed,
effectiveness of the measures and proposal of further actions required. A
sample interim notification template can be found in Appendix
D.
11.1.1
This
Manual lists out the EM&A requirements for environmental parameters air
quality, noise, water quality, ecology, waste management and landscape and
visual.
11.1.2
Environmental
monitoring on air quality, noise and water quality are proposed and regular
site inspection is recommended for all other parameters. Any non-compliance
identified should be notified to all parties according to the Event and Action
Plan and remediation measures should be carried out. Complaints received should
be investigated and problems related to construction works should be solved
till satisfaction. Baseline, monthly, quarterly and final EM&A reports
shall be prepared to report on the continual monitoring results and evaluate
the EM&A works).