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Job No.: TCS00874/16 |
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CEDD Contract No. CV/2012/05 Development of a Bathing Beach at Lung Mei, Tai
Po |
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13th Quarterly Environmental Monitoring and Audit Summary Report (December 2020 ¡V February 2021) |
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Prepared For |
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Welcome Construction CO., Ltd |
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Date |
Reference No. |
Prepared By |
Certified By |
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17 June 2021 |
TCS00874/16/600/R0705v2 |
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Nicola Hon (Environmental
Consultant) |
T.W. Tam (Environmental
Team Leader) |
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Version |
Date |
Remarks |
1 |
5 May 2021 |
First Submission |
2 |
17 June 2021 |
Amended
according to the IEC¡¦s comments |
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executive summary
ES.01 Civil Engineering and Development Department (hereafter referred as ¡§CEDD¡¨) is the
Project Proponent and the Permit Holder of Agreement
No. CE 59/2005 (EP) Development of a Bathing Beach at Lung Mei, Tai Po (hereinafter
referred as ¡§the Project¡¨), which is a Designated Project to be implemented
under Environmental Permit number EP-388/2010 (hereinafter
referred as ¡§the EP-388/2010¡¨ or ¡§the EP¡¨).
ES.02 Action-United Environmental Services & Consulting (hereinafter referred as ¡§AUES¡¨) has been commissioned as the
Environmental Team for the Project (hereinafter referred as ¡§the ET¡¨) to
perform relevant Environmental Monitoring and Audit (EM&A) programme,
including baseline and impact environmental monitoring in accordance with the EM&A
Manual approved under the Environmental Impact Assessment Ordinance
(EIAO).
ES.03 The construction phase of the Project was commenced on 1st
December 2017 and EM&A programme was commenced at the same day. The marine work under the Project was
commenced on 24th January 2018 subsequently.
ES.04 This is the 13th
Quarterly EM&A report summarizing the monitoring results and
inspection findings for the reporting period from 1 December 2020 to 28 February 2021 (hereinafter ¡¥the Reporting
Period).
Environmental Monitoring and Audit Activities
ES.05 In view of completion of all the marine
activities, the impact marine water quality monitoring for the
Project was terminated on 31 August 2020 according to the updated EM&A Manual Section 5.1.5. The notification of termination of
impact marine water quality monitoring was issued to CEDD, IEC and EPD without
adverse comment received. Pursuant to updated EM&A
Manual Section 5.1.6, post-project marine water quality monitoring was conducted
in September 2020 and October 2020 for 4 weeks to fulfill the EM&A
requirement and the results were presented in the monthly EM&A report
(October 2020).
ES.06
Environmental
monitoring activities under the EM&A program in the Reporting Period are summarized in the following
table.
Issues |
Environmental Monitoring Parameters /
Inspection |
Sessions Note 1 |
Air Quality |
1-hour
TSP |
16 |
24-hour TSP |
16 |
|
Construction
Noise |
LAeq(30min)
Daytime |
13 |
Inspection /
Audit |
ET Regular Bi-weekly
Environmental Site Inspection |
6 |
IEC Monthly
Environmental Site Audit |
3 |
Note 1:
Total sessions are counted by monitoring days
Breach of Action and Limit (A/L)
Levels
ES.07
No
exceedance of air quality and construction noise monitoring were recorded in
this Reporting Period. The
statistics of environmental exceedance, NOE issued and investigation of
exceedance are summarized in the following table.
Environmental Issues |
Monitoring Parameters |
Exceedance |
Event & Action |
||
Action Level |
Limit Level |
Investigation |
Corrective Actions |
||
Air Quality |
1-hour
TSP |
0 |
0 |
- |
- |
24-hour TSP |
0 |
0 |
- |
- |
|
Construction
Noise |
LAeq(30min) |
0 |
0 |
- |
- |
Notification of
Environmental Complaint, Summons and Successful Prosecutions
ES.08 No environmental complaint, summons or successful
prosecutions were received and recorded in this Reporting Period.
ES.09
No
reporting change was made in this Reporting Period.
ES.10
In view of substantial completion of work and in consideration of
the scale and nature of remaining works, it is considered that the potential
environmental impacts associated with the remaining works for Project are
negligible. A Proposal for Cessation of Construction Phase EM&A with
IEC¡¦s verification letter was submitted to EPD on 3 March 2021 for approval. The Proposal is under review by EPD.
ES.11
Construction activities in the coming months are
E&M Works, landscaping, lookout tower finishing works and speed enforcement
camera. The potential
environmental impacts arising from the remaining activities
include construction waste, air quality and
construction noise.
ES.12
Dust mitigation measures should be
fully implemented such as water spraying during dust work to minimize dust
impact as appropriate.
ES.13
Moreover, noise mitigation measures such as use of
quiet plants should be implemented, as applicable, in accordance with the EM&A
requirement.
Table of Contents
2. Project
Organization and Construction Progress
2.1 Project
Organization and Management Structure
2.3 Summary of Environmental Submissions
3. Summary
of Impact Monitoring Requirements
3.4 Monitoring
Frequency and Period
3.7 Meteorological
Information
3.8 Determination
of Action/Limit (A/L) Levels
3.9 Data Management and Data QA/QC Control
4.2 Results
of Air Quality Monitoring
5. Construction
Noise Monitoring
5.2 Results
of Noise Monitoring
7.2 Records
of Waste Quantities
8.1 Ecology Monitoring (marine-based)
9.2 Findings
/ Deficiencies During the
Reporting Month
10. Environmental
Complaint and Non-Compliance
10.1 Environmental
Complaint, Summons and Prosecution
11. Implementation
Status of Mitigation Measures
12. Conclusions
and Recommentations
List of TABLES
Table 2-1 Major
Construction Activities of the Works during the Reporting Period
Table 2-1 Status
of Environmental Licenses and Permits
Table 2-2 Submission
Status as under the EP Stipulation
Table 3-1 Summary
of EM&A Impact Monitoring Requirements
Table 3-2 Location
of Air Quality Monitoring
Table 3-3 Designated
Noise Monitoring Station according to the EM&A Manual
Table 3-4 Noise
Monitoring Stations of the EM&A Programme
Table 3-5 Air
Quality Monitoring Equipment
Table 3-6 Construction
Noise Monitoring Equipment
Table 3-7 Action
and Limit Levels for Air Quality
Table 3-8 Action
and Limit Levels for Construction Noise, dB(A)
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results
Table 4-2 Summaries
of Breaches of Air Quality A/L Levels
Table 5-1 Summary
of Construction Noise Monitoring Results
Table 5-2 Summaries
of Breaches of Construction Noise A/L Levels
Table 7-1 Summary
of Quantities of Inert C&D Materials
Table 7-2 Summary
of Quantities of C&D Wastes
Table 8-1 Summary
of Submission for Seahorse Monitoring
Table 8-2 Summary
of Submission for Marine Ecological Monitoring
Table 9-1 Summary
of Site Observations
Table 10-1 Statistical
Summary of Environmental Complaints
Table 10-2 Statistical
Summary of Environmental Summons
Table 10-3 Statistical
Summary of Environmental Prosecution
Table 11-1 Environmental
Mitigation Measures in the Reporting Month
List
of Appendices
Appendix
A Layout Plan of the
Project
Appendix
B Organization
structure and contact details
Appendix
C Monitoring
Location
Appendix
D Event and Action
Plan
Appendix E Database of Monitoring
Results
Appendix F Graphical plots
of Monitoring Results
Appendix G Weather
Information
Appendix H Waste Flow Table
Appendix I Implementation
Schedule of Environmental Mitigation Measures
1.1.1
Civil Engineering
and Development Department (hereafter referred as ¡§CEDD¡¨) is the Project
Proponent and the Permit Holder of Agreement No. CE 59/2005 (EP)
Development of a Bathing Beach at Lung Mei, Tai Po (hereinafter
referred as ¡§the Project¡¨), which is a Designated Project to be implemented
under Environmental Permit number EP-388/2010 (hereinafter
referred as ¡§the EP-388/2010¡¨ or ¡§the EP¡¨).
1.1.2
The major construction activities of the
Project comprise construction of 200-metre
long bathing beach with a groyne at each end, a shark prevention
net; a public car park; retaining walls; and the associated roadworks, drainage
and sewerage works. Layout plan of the Project is shown in Appendix A. Designated
works of the Project under the EP shall
include:
(i)
Construction of a 200m long beach with a groyne at each end of the beach which includes dredging and
sandfilling works;
(ii)
Construction of one culvert at the eastern side of the
beach and another small section of culvert and open drainage channel with
gabion embankments at the western end, both to collect and divert surface
runoff from upstream locations; and
(iii)
Construction of a beach building with associated beach
building facilities, kiosk and a carpark and associated road improvement works
adjoining the facility.
1.1.3
CEDD is Site
Resident Engineers (hereinafter referred as ¡§SRE¡¨) responsible for the Project
management; Welcome Construction CO., Ltd is a Main Contractor (hereinafter
referred as ¡§the Main Contractor¡¨) responsible to construction of the Project
Works; and Action-United Environmental Services & Consulting (hereinafter referred
as ¡§AUES¡¨) has been commissioned as an Independent Environmental Team
(hereinafter referred as ¡§the ET¡¨) to implement the relevant EM&A program
in accordance with the approved EM&A Manual, as well as the associated
duties. Moreover, Environmental
Resources Management is Independent Environmental Checker (hereinafter referred
as ¡§IEC¡¨) of the Project.
1.1.4
As part of the EM&A program, baseline
monitoring to determine the ambient environmental conditions including air
quality, noise and water quality were undertaken between 7 June 2017 and 21
October 2017. After
completed baseline monitoring, Baseline Monitoring Report for Air Quality and Noise (AUES Ref.: TCS00874/16/600/R0022v3) and Baseline
Monitoring Report for
Water Quality (AUES Ref.:
TCS00874/16/600/R0036v2) has been verified by IEC and submitted to EPD for endorsement. These baseline
monitoring reports has summarized the key findings of
baseline condition and
determined a set
of Action and Limit Levels (A/L Levels) based on the baseline
data. The A/L Levels will serve as the
yardsticks for assessing the acceptability of the environmental impact during
construction phase of the Project Works impact monitoring.
1.1.5
The construction phase of the
Project was commenced on 1st December 2017 and EM&A programme was commenced at the same day.
The marine work under the Project was commenced on 24th
January 2018 subsequently.
1.1.6
As advised by the Contractor and confirmed by CEDD, all marine dredging
was completed in late October 2019 and all sand laying underwater has been substantially completed in late
August 2020. It is confirmed that no further filling operation in the site
after sub-tidal profile survey check conducted on 31 August 2020 and CEDD have
no adverse comment on
it. The standing type silt
curtain installed as per Figure 3 of the Environmental Permit No. EP-388/2010
was removed and the shark prevention net was installed on 17 September 2020. In view of completion of all the marine activities
including dredging and sand laying underwater, the impact marine water quality monitoring for the Project was terminated on 31
August 2020 according to the updated EM&A Manual
Section 5.1.5. The notification of
termination of impact marine water quality monitoring was issued to CEDD, IEC
and EPD without adverse comment received.
1.1.7
This is the 13th Quarterly EM&A report presenting the monitoring results and
inspection findings for the reporting period from 1 December 2020 to 28 February
2021.
1.2.1
The Quarterly EM&A Report is structured
into the following sections:-
Section 1 Introduction
Section 2 Project
Organization and Construction progress
Section 3 Summary of
Impact Monitoring Requirements
Section 4 Air Quality
Monitoring
Section 5 Construction
Noise Monitoring
Section 6 Water
Quality Monitoring
Section 7 Waste Management
Section 8 Ecology
Section 9 Site
Inspection
Section 10 Environmental
Complaint and non-compliance
Section 11 Implementation
Status of Mitigation Measures
Section 12 Conclusion
and Recommendation
2.1.1
Organization structure and contact details of relevant parties
with respect to on-site environmental management are shown in Appendix B.
2.2.1
The
major construction activities undertaken in the Reporting Period are listed
below:-
Table 2-1 Major
Construction Activities of the Works during the Reporting Period
Month |
Major Construction Activities |
December 2020 |
¡P
Road widening; ¡P
Sand profile formation (land based); ¡P
E&M works; and ¡P
Landscaping |
January
2021 |
¡P
E&M works; and ¡P
Landscaping |
February
2021 |
¡P
E&M works; and ¡P
Landscaping |
2.3.1
Summary of currently relevant permits,
licenses, and/or notifications on environmental protection for this Project in
this Reporting Period is presented in Table 2-1.
Table 2-1 Status of Environmental Licenses and Permits
Item |
Description |
License/Permit Status |
||
Permit
no./Account no./ Ref. no. |
From |
To |
||
1 |
Air pollution Control (Construction
Dust) Regulation |
Ref. Number: 418137 |
N/A |
N/A |
2 |
Chemical Waste Producer Registration |
Waste
Producers Number (WPN): PN5213-728-W3437-01 |
21 August
2017 |
End of
Project |
3 |
Water Pollution Control Ordinance |
License No.: WT00028905-2017 |
24 October
2017 |
31 October
2022 |
4 |
Waste Disposal (Charges for Disposal of
Construction Waste) Regulation |
Billing
Account for Disposal of Construction Waste: Account No. 7017686 |
3 July 2013 |
End of
Project |
2.3.2
The submission status as under the EP requirement
is presented in Table 2-2.
Table 2-2 Submission Status as under the EP Stipulation
Item |
EP
condition |
Description |
Status |
1 |
2.3 |
Management Organization of the Main Construction Companies |
The updated version to be submitted in May 2018 |
2 |
2.4 |
Report for Capture and
Relocation of Common Rat
Snake |
Approved by EPD on 15 Sep 2017 (EPD ref.: (15) in
EP2/N5/C/46 Pt.6 dated 15 Sep 2017) |
3 |
2.5 |
Landscape Plan |
Submitted to EPD on 28 June 2017 |
4 |
3.12 |
Mangrove Seedling Planting Proposal |
Not yet submitted |
5 |
3.13 |
Detailed Landscape As-built
Drawing(s) |
Not yet submitted |
6 |
4.3 |
Baseline Monitoring Report for Air Quality
and Noise (AUES Ref.: TCS00874/16/600/R0022v3) |
Approved by EPD on 8 Jan 2018 (EPD ref.: (36) in
EP2/N5/C/46 Pt.6 dated 8 Jan 2018) |
7 |
Baseline Monitoring Report for Water Quality(AUES Ref.: TCS00874/16/600/R0036v2) |
Approved by
EPD on 10 Jan 2018 (EPD ref.: (37) in EP2/N5/C/46 Pt.6 dated 10 Jan 2018) |
3.1.1
The EM&A requirements are set out in the EM&A manual and environmental
issues such as air quality, construction noise and water quality were identified
as the key issues during the construction phase of the Project. In view
of completion of all the marine activities, the impact marine water
quality monitoring for the Project was terminated on 31 August 2020 according to the updated EM&A
Manual Section 5.1.5. A summary of the EM&A
requirements for air quality and noise monitoring are presented in the
sub-sections below.
3.2.1
According to the Project EM&A Manual, the impact monitoring program
covers the following environmental issues:
Air Quality;
Construction Noise
3.2.2
A summary of the monitoring parameters is presented in Table
3-1 below.
Table 3-1 Summary
of EM&A Impact Monitoring Requirements
Environmental
Issue |
Parameters |
Air Quality |
1-hour TSP 24-hour TSP |
Noise |
Leq (30min) in six consecutive Leq(5 min) between 07:00-19:00 on normal
weekdays |
Air Quality
3.3.1
There are air quality monitoring locations (A4 and
A6) recommended in
Section 3.1 of the EM&A Manual.
During liaison with the landlord of A6, he refused to provide access and
location for
installation of High Volume Air Sampler (HVAS). Therefore, alternative location (A7) was proposed by
ET in accordance with Section 3.4 of the EM&A Manual. The proposed alternative locations are considered capable
of effectively representing the baseline conditions at the impact monitoring
locations. The proposal (ref no.: TCS00874/16/300/L0016b) for alternative monitoring
locations was verified by IEC and it has been submitted to EPD for approval on 8 May 2017. The air quality
monitoring locations
are in Table
3-2 and illustrated in Appendix C.
Table 3-2 Location of Air Quality Monitoring
Station ID |
Location |
A4 |
No. 101 Lung Mei Tsuen |
A7 |
Hong Kong Eco-Farm |
Construction
Noise
3.3.2
According to Section 4.1 of the
EM&A Manual, four
designated noise sensitive receivers (N1, N2, N3 and N4) were
recommended and they are listed in Table 3-3.
Table 3-3 Designated
Noise Monitoring Station according to the EM&A Manual
NSR |
Location |
N1 |
Village house - No. 165A Lung Mei |
N2* |
Village house - No. 103 Lung Mei |
N3 |
Village house - No. 70 Lo Tsz Tin |
N4 |
Village house - No. 79 Lo Tsz Tin |
Remarks:
(*) Noise monitoring should be conducted at N2a (i.e House No. 101 Lung Mei) if it is changed to residential
use during construction phase.
3.3.3
As confirmed on the first day of
baseline monitoring, N2a (House no. 101 Lung Mei) has been changed to
residential use. Therefore, the
noise monitoring is conducted at N2a and to replace N2. Moreover, due to the lack of accessibility of noise
monitoring at NSR N3 (Village house ¡V No. 70 Lo Tsz Tin), alternative location was
proposed to
replace N3 to carry out the noise monitoring. Having reviewed the
surrounding condition, NSR N3a (Village house ¡V No. 66C Lo Tsz Tin) was proposed
with the
rationales summarized in below.
1)
The
distance between N3 and N3a is about 18 meter apart and N3a locates at close
proximity of the project site and major site activities which are likely to
have noise impacts;
2)
N3a is
a village type residential house and it is a noise sensitive receiver (NSR);
3)
Accessibility
for noise monitoring work at N3a is available; and
4)
Minimal
disturbance would be only caused to the proposed monitoring location N3a.
3.3.4
The proposal (ref no.:
TCS00874/16/300/L0016b) for alternative monitoring locations was
verified by IEC and it has been submitted to EPD for approval on 8 May 2017. The noise monitoring
stations under the EM&A programme are listed in Table 3-4 and illustrated in Appendix C.
Table 3-4 Noise Monitoring Stations of the EM&A Programme
Station ID |
Address |
N1 |
Village
house No. 165A of Lung Mei |
N2a |
Village
house No. 101 of Lung Mei |
N3a |
Village
house No. 66C of Lo Tsz Tin |
N4 |
Village
house No. 79 of Lo Tsz Tin |
3.4.1
The frequency and the
duration for impact monitoring are summarized below.
Air Quality Monitoring
Parameters: |
1-hour TSP and 24-hour TSP |
Frequency: |
3 times every six
days for 1-hour TSP and once every 6 days for 24-hour TSP |
Duration: |
Throughout the
construction period |
Noise Monitoring
Parameters: |
LAeq(30min) and statistical results L10 & L90 |
Frequency: |
Leq (30min) in 6
consecutive Leq(5min) for once a week during
07:00-19:00 on normal weekdays |
Duration: |
Throughout the
construction period |
Air Quality Monitoring
3.5.1
The 24-hour and 1-hour 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. If the ET proposes to use a direct
reading dust meter to measure 1-hour TSP levels, it shall submit sufficient
information to the IEC to prove that the instrument is capable
of achieving a comparable results to the HVS. The instrument should be calibrated
regularly, and the 1-hour sampling shall be determined on yearly basis by the
HVS to check the validity and accuracy of the results measured by direct
reading method. The filter paper of 24-hour
TSP measurement shall be determined by HOKLAS accredited laboratory.
3.5.2
All equipment to be used for air quality monitoring is listed in Table
3-5.
Table 3-5 Air
Quality Monitoring Equipment
Equipment |
Model |
24-Hour TSP |
|
High Volume Air Sampler |
TISCH High Volume Air Sampler, HVS Model
TE-5170 |
Calibration Kit |
TISCH Calibration Kit Mode TE-5025A |
1-Hour TSP |
|
Portable Dust Meter |
Sibata LD-3B Laser Dust Meter |
Noise Monitoring
3.5.3
Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1)
and 804: 1985 (Type 1) specifications shall be used for carrying out the noise
monitoring. The sound level meter
shall be checked using an acoustic calibrator. The wind speed shall be checked with a
portable wind speed meter capable of measuring the wind speed in ms-1
for reference.
3.5.4
Monitoring equipment to be used for construction noise measurement
is listed in Table 3-6.
Table 3-6 Construction
Noise Monitoring Equipment
Equipment |
Model |
Integrating Sound Level Meter |
Rion NL-52 |
Acoustic Calibrator |
Rion NC-73 |
Portable Wind Speed Indicator (#) |
Anemometer
AZ Instrument 8908 |
(#) Wind speed is reference data only and there is no calibration certificate for portable wind speed indicator.
Air Quality
1-hour TSP
3.6.1
Operation of the 1-hour TSP meter will follow manufacturer¡¦s Operation and Service Manual.
3.6.2
The 1-hour TSP monitor, brand named ¡§Sibata LD-3B Laser Dust Meter¡¨ is a portable, battery-operated laser
photometer. The 1-hour TSP meter provides a real time 1-hour
TSP measurement based on 900 light scattering. The 1-hour TSP
monitor consists of the following:
a.
A pump
to draw sample aerosol through the optic chamber where TSP is measured;
b.
A
sheath air system to isolate the aerosol in the chamber to keep the optics
clean for maximum reliability; and
c.
A
built-in data logger compatible with Windows based program to facilitate data
collection, analysis and reporting.
3.6.3
The 1-hour
TSP meter to be used will be within the valid period, calibrated by the manufacturer
prior to purchasing. Zero response of the instrument will be checked before and after each monitoring event. Annually calibration with the High
Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.
24-hour TSP
3.6.4
The equipment used for 24-hour TSP measurement is the High
Volume Sampler (hereinafter the ¡§HVS¡¨) brand named TISCH, Model TE-5170 TSP
High Volume Air Sampler, which complied with EPA Code of Federal Regulation, Appendix B to Part 50. The HVS consists of the following:
a.
An anodized aluminum shelter;
b.
A 8¡¨x10¡¨ stainless steel filter holder;
c.
A blower motor assembly;
d.
A continuous flow/pressure recorder;
e.
A motor speed-voltage control/elapsed time indicator;
f.
A 7-day mechanical timer, and
g.
A power supply of 220v/50 hz
3.6.5
For HVS for 24-hour TSP monitoring, the HVS is mounted in a
metallic cage with a top for protection and also it is sat on the existing
ground or the roof of building. The
flow rate of the HVS between 0.6m3/min and 1.7m3/min will
be properly set in accordance with the manufacturer¡¦s instruction to within the
range recommended in EPA Code of Federal
Regulation, Appendix B to Part 50. Glass Fiber Filter 8" x 10" of
TE-653 will be used for 24-Hour TSP monitoring and would be supplied by
laboratory. The general procedures
of sampling are described as below:-
A horizontal platform with appropriate support to secure the
samples against gusty wind should be provided;
No two samplers should be placed less than 2 meters apart;
The distance between the sampler and an obstacle, such as
building, must be at least twice the height that the obstacle protrudes above
the sample;
A minimum of 2 meters of separation from any supporting structure,
measured horizontally is required;
Before placing any filter media at the HVS, the power supply will
be checked to ensure the sampler work properly;
The filter paper will be set to align on the screen of HVS to
ensure that the gasket formed an air tight seal on the outer edges of the
filter. Then filter holder frame
will be tightened to the filter hold with swing bolts. The holding pressure should be
sufficient to avoid air leakage at the edge.
The mechanical timer will be set for a sampling period of 24 hours
(00:00 mid-night to 00:00 mid-night next day). Information will be recorded on the
field data sheet, which would be included the sampling data, starting time, the
weather condition at current and the filter paper ID with the initial weight;
After sampling, the filter paper will be collected and transfer
from the filter holder of the HVS to a sealed envelope and sent to a local
HOKLAS accredited laboratory for quantifying.
3.6.6
All the sampled 24-hour TSP filters will be
collected and put into the filter envelope provided by the laboratory. The sample will be kept in normal air conditioned
room conditions, i.e. 70% HR (Relative Humidity) and 25oC and
delivery to the office within 48 hours and sent to laboratory for analysis. The sampled filter will be kept in the
laboratory for six
months prior to disposal.
3.6.7
The HVS used for 24-hour TSP monitoring will be calibrated before
the commencement for sampling, and after in two months interval for 1 point
checking of maintenance and six months interval for five points calibrate in
accordance with the manufacturer¡¦s instruction using the NIST-certified
standard calibrator (TISCH Calibration Kit Model TE-5025A) to establish a relationship
between the follow recorder meter reading in cfm (cubic feet per minute) and
the standard flow rate, Qstd, in m3/min. Motor brushes of HVS will be regularly
replaced of about five hundred hours per time.
Construction Noise
3.6.8
As referred to in the Technical Memorandum (TM) issued under the
NCO, sound level meters in compliance with the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804:1985 (Type 1) specifications
shall be used for carrying out the noise monitoring. Immediately prior to and
following each noise measurement the accuracy of the sound level meter shall be
checked using an acoustic calibrator generating a known sound pressure level at
a known frequency. Measurements may be accepted as valid only if the
calibration levels from before and after the noise measurement agree to within
1.0 dB.
3.6.9
All noise measurements will be performed with the meter set to
FAST response and on the A-weighted equivalent continuous sound pressure level (Leq). Leq(30 min) in six
consecutive Leq(5 min) measurements will be used as the
monitoring parameter for the time period between 07:00-19:00 hours on weekdays.
3.6.10
The sound level meter will be mounted on a tripod at a height of
1.2 m and placed at the assessment point and oriented such that the microphone
is pointed to the site with the microphone facing perpendicular to the line of
sight. The windshield will be fitted for all measurements. Where a
measurement is to be carried out at a building, the assessment point would
normally be at a position 1 m from the exterior of the building façade. Where a
measurement is to be made for noise being received at a place other than a
building, the assessment point would be at a position 1.2 m above the ground in
a free-field situation, i.e. at least 3.5 m away from reflective surfaces such
as adjacent buildings or walls.
3.6.11
Immediately prior to and following each noise measurement the
accuracy of the sound level meter will be checked using an acoustic calibrator
generating a known sound pressure level at a known frequency. Measurements will be accepted as valid
only if the calibration level from before and after the noise measurement
agrees to within 1.0 dB.
3.6.12
Noise measurements will not be made in fog, rain, wind with a
steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The wind speed
will be checked with a portable wind speed meter capable of measuring the wind
speed in m/s.
3.6.13
Valid calibration
certificates of monitoring equipment of air quality and construction noise are
shown in respectively monthly EM&A Reports.
3.7.1
The meteorological information including wind direction, wind speed,
humidity, rainfall, air pressure and temperature etc. during impact
monitoring is
extracted from the closest Hong Kong Observatory Station. To obtain the most appropriate meteorological information
where available,
Air Temperature/Pressure and Relative Humidity will be extracted from Tai Po
Station and wind speed and direction will be extracted from Tai Mei Tuk Station.
3.8.1
The baseline results form the basis for determining the
environmental acceptance criteria for the impact monitoring. A summary of the Action/Limit (A/L)
Levels for air quality, construction noise and water quality are shown in Table
3-7 and 3-8 respectively.
Table 3-7 Action
and Limit Levels for Air Quality
Monitoring Station |
Action Level (mg /m3) |
Limit Level (mg/m3) |
||
1-hour TSP |
24-hour TSP |
1-hour TSP |
24-hour TSP |
|
A4 |
275 |
142 |
500 |
260 |
A7 |
274 |
141 |
500 |
260 |
Table 3-8 Action and Limit
Levels for Construction Noise, dB(A)
Time Period: 0700-1900 hours on normal weekdays |
||
Monitoring Location |
Action Level |
Limit Level Note 1 & Note 2 |
N1,
N2a, N3a, and N4 |
When one documented complaint
is received |
75 |
Note 1: Acceptable Noise Levels for school should be
reduced to 70 dB(A) and65 dB(A) during examination period
Note 2: If works are to be carried out during
restricted hours, the conditions stipulated in the construction noise
permit issued by the NCA have to be followed.
3.8.2
Should
non-compliance of the environmental quality criteria occurs, remedial actions
will be triggered according to the Event and Action Plan which presented in Appendix D.
3.9.1
The impact monitoring data were handled by the
ET¡¦s in-house data
recording and management system.
3.9.2
The monitoring data recorded in the equipment were downloaded
directly from the equipment at the end of each monitoring day. The downloaded monitoring data were
input into a computerized database properly maintained by the ET. The laboratory results were input
directly into the computerized database and checked by personnel other than
those who input the data.
3.9.3
For monitoring parameters that require laboratory analysis, the
local laboratory shall follow the QA/QC requirements as set out under the
HOKLAS scheme for the relevant laboratory tests.
4.1.1
In the Reporting Period, air quality monitoring was performed at the proposed monitoring
locations A4 and A7.
4.2.1
Summary of air quality monitoring
results during the Reporting Period are tabulated in Table 4-1. The database of monitoring result
throughout the Reporting Period is shown in Appendix E and
the relevant graphical plots are shown in Appendix F.
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results
Monitoring Location |
1-hour TSP (µg/m3) |
24-hour TSP (µg/m3) |
||||
Max |
Min |
Mean |
Max |
Min |
Mean |
|
A4 |
84 |
56 |
68 |
139 |
18 |
87 |
Record Date |
25-Feb-21 |
4-Dec-20,
16-Dec-20 |
16 sessions |
28-Jan-21 |
11-Feb-21 |
16 sessions |
A7 |
83 |
53 |
67 |
83 |
10 |
49 |
Record Date |
28-Dec-20 |
10-Feb-21 |
16 sessions |
9-Feb-21 |
11-Feb-21 |
16 sessions |
4.2.2
Breaches of air quality A/L levels and
statistical analysis of compliance for the air quality monitoring results are summarized in Table 4-2.
Table 4-2 Summaries
of Breaches of Air Quality A/L Levels
Location |
Exceedance |
1-hour TSP |
24- hour TSP |
Total |
A4 |
Action Level |
0 |
0 |
0 |
Limit Level |
0 |
0 |
0 |
|
A7 |
Action Level |
0 |
0 |
0 |
Limit Level |
0 |
0 |
0 |
4.2.3
As shown in Tables 4-1 to 4-2, all the 1-hour and 24-Hour TSP monitoring results were below the
Action/Limit Levels. Hence, no
Notification of Exceedance (NOE) was issued in this Reporting Period.
4.2.4
The summary of weather conditions during the Reporting Period is
presented in Appendix G.
5.1.1
In the Reporting Period, construction noise quality was performed at the designated monitoring
locations N1, N2a, N3a and N4.
5.2.1
In the Reporting Period, 13 sessions of noise monitoring
conducted. Free-field status were performed at N1 and N3a and façade correction (+3dB(A)) has been
added for the correction in according to the acoustical principles and EPD
guidelines. The noise monitoring
results at the designated locations are summarized in Tables 5-1. The database of monitoring result
throughout the Reporting Period is shown in Appendix E and
the relevant graphical plots are shown in Appendix F.
Table 5-1 Summary of Construction Noise Monitoring
Results
Monitoring
Location |
Leq, 30min (dB((A)) |
|
Max |
Min |
|
N1(*) |
66 |
58 |
Record Date |
22-Dec-20 |
16-Feb-21 |
N2a |
65 |
55 |
Record Date |
22-Dec-20,
28-Dec-20 |
29-Jan-21 |
N3a(*) |
66 |
50 |
Record Date |
25-Feb-21 |
6-Jan-21 |
N4 |
62 |
56 |
Record Date |
25-Feb-21 |
10-Dec-20 |
Remark:
(*) A façade correction of +3dB(A)
has been added according to acoustical principles and EPD guidelines.
5.2.2
Breaches of construction noise A/L
levels and statistical analysis of compliance for construction noise monitoring results are summarized in Table 5-2.
Table 5-2 Summaries
of Breaches of Construction Noise A/L Levels
Station |
Limit Level |
Action Level |
Received Date |
N1 |
0 |
0 |
N/A |
N2a |
0 |
||
N3a |
0 |
||
N4 |
0 |
5.2.3
In
this Reporting Period, the
noise level measured at all designated monitoring locations were below 75dB(A),
also no construction noise complaint received. Therefore, no Action and Limit Levels exceedance was triggered
and no corrective action required.
6.1.1
In view of
completion of all the marine activities, the impact marine water
quality monitoring for the Project was terminated on 31 August 2020 according
to the updated EM&A Manual Section 5.1.5. The notification of termination of
impact marine water quality monitoring was issued to CEDD, IEC and EPD without
adverse comment received. Pursuant to updated EM&A Manual Section 5.1.6, post-project
marine water quality monitoring was conducted in September 2020 and October
2020 for 4 weeks to fulfill the EM&A requirement and the results were
presented in the monthly EM&A report (October 2020).
7.1.1
Waste management was carried out by an on-site Environmental
Officer or an Environmental Supervisor from time to time.
7.2.1
All types of waste arising from the construction work are classified
into the following:
Construction & Demolition (C&D)
Material;
Chemical Waste;
General Refuse; and
Excavated Soil.
7.2.2
The quantities of waste for disposal in this Reporting Period are
summarized in Tables 7-1 and 7-2 and the Monthly Summary Waste
Flow Table is shown in Appendix H. Whenever possible, materials were reused on-site as far as
practicable.
Table 7-1 Summary
of Quantities of Inert C&D Materials
Types
of Waste |
Quantity |
Disposal
Location |
||
Dec 2020 |
Jan 2021 |
Feb 2021 |
||
Total C&D Materials (Inert) (¡¥000m3) |
0.054 |
0.724 |
0 |
Tuen Mun Area 38 |
Reused in this Contract (Inert) (¡¥000m3) |
0 |
0 |
0 |
NA |
Reused in other
Projects (Inert) (¡¥000m3) |
0 |
0 |
0 |
NA |
Disposal as Public
Fill (Inert) (¡¥000m3) |
0.054 |
0.724 |
0 |
Tuen Mun Area 38 |
Table 7-2 Summary
of Quantities of C&D Wastes
Types
of Waste |
Quantity |
Disposal
Location |
||
Dec 2020 |
Jan 2021 |
Feb 2021 |
||
Recycled Metal (¡¥000kg) |
0 |
0 |
0 |
NA |
Recycled Paper / Cardboard Packing (¡¥000kg) |
0 |
0 |
0 |
NA |
Recycled Plastic (¡¥000kg) |
0 |
0 |
0 |
NA |
Chemical Wastes (¡¥000kg) |
0 |
0 |
0 |
NA |
General Refuse (¡¥000m3) |
0.006 |
0.003 |
0.0041 |
NENT |
Seahorse Translocation
Surveys
8.1.1
The
seahorse captured and translocation was conducted in the period of 17
to 20
January 2018. Since the two tagged seahorses were not recorded at the
Ting Kok East reception site during the first 7 days Post-translocation
Seahorse Survey on 21 to 27
January 2018, Option 2 of monitoring programme was therefore
adopted to perform the Post-translocation
Seahorse Survey in accordance
with the approved method
statement (Seahorses Translocation Plan (Version 1, 11 January 2018)
refers). The Post-translocation
Seahorse Survey should be performed in the first year for a period of one year
after the completion of seahorse translocation. The proposed survey time would be at
least 28 man-hours (including 14 man-hours during daytime and 14 man-hours
during nighttime for each survey). The survey
frequency is listed below:
Daily for first week
three times per week for the second to fourth week
once a week for the
second to fourth month
once a month for the
fifth to twelve month
8.1.2
The
one year Post-translocation Seahorse
Survey at Ting Kok East
was completed in January 2019.
Post-construction will be undertaken
at the installed shark net during the maintenance period of the Project. A summary of submission regarding
seahorse monitoring is shown in below Table 8-1.
Table 8-1 Summary
of Submission for Seahorse Monitoring
EM&A Ref. |
Submission |
First Submission Date |
Latest Version
Submission Date |
S7.2.3.3 |
Seahorse
Translocation Plan |
19 Sep 2017 |
30 Nov 2017 |
S7.2.3.8 |
Pre-translocation
Survey Report for Seahorse |
1 Dec 2018 |
11
June 2020 |
S7.2.3.4 |
Seahorse
Translocation Report |
29 Jan 2018 |
11
June 2020 |
S7.2.3.9 |
Post-translocation monitoring report (all reports) |
||
1st Week |
29 Jan 2018 |
To be updated by the
Contractor |
|
2nd Week |
4 Feb 2018 |
||
3rd Week |
27 Mar 2018 |
||
4th Week |
27 Mar 2018 |
||
Second Month |
27 Mar 2018 |
||
Third Month |
27 Mar 2018 |
||
Fourth Month |
25 May 2018 |
||
Fifth Month |
28 August 2018 |
||
Sixth Month |
28 August 2018 |
||
Seven Month |
28 August 2018 |
||
Eighth Month |
4 Oct 2018 |
14 July 2020 |
|
Ninth Month |
19 Oct 2018 |
14 July 2020 |
|
Tenth Month |
18 Nov 2018 |
11
June 2020 |
|
Eleventh Month |
21 Dec 2018 |
14 July 2020 |
|
Twelfth Month |
15 Feb 2019 |
14 July 2020 |
|
S7.2.3.10 |
Post-construction
monitoring report |
To be confirmed |
To be confirmed |
Marine Ecological
Monitoring
8.1.3
In
accordance to Section 7.2 of the updated EM & A manual, it is required to
conducting marine ecological monitoring after marine fauna relocation at a
six-monthly interval at (i) vicinity site near bathing beach at Lung Mei and
(ii) The Reception Site of Ting Kok East until expiry
of the Contract Maintenance Period.
8.1.4
The
objectives of the marine ecological monitoring are to collect data for
determining whether
there is any impact on the marine ecological resources (i) in the vicinity of
the Site
due to the development of the bathing beach at Lung Mei, and (ii) at the
Reception Site
of Ting Kok East due to translocation of the target
marine fauna.
Marine Fauna Translocation
8.1.5
Target
marine fauna, including fishes, starfish, sea urchins and sea cucumbers, shall
be translocated
from the intertidal area of the Site at Lung Mei to the intertidal area at the Reception Site of Ting Kok
East before commencement of sand filling works or any other works that may cause disturbances to
the existing marine ecology. The translocation
works shall cover capturing, handling, holding, transporting and releasing of the captured target marine
fauna.
8.1.6
Baseline quantitative quadrat
surveys were conducted at the vicinity site of Lung Mei beach and Ting Kok East
in June 2017.
Moreover, fauna translocation was completed in
January 2018. After the translocation, marine ecological
monitoring was conducted
at a six-monthly interval at vicinity site near bathing beach at Lung Mei and the reception Site of Ting Kok
East until expiry of the Contract Maintenance Period.
8.1.7
A summary of submission regarding marine ecological monitoring is
shown in below Table 8-2.
Table 8-2 Summary
of Submission for Marine Ecological Monitoring
EM&A Ref. |
Submission |
First Submission Date |
Latest Version
Submission Date |
S7.2.2.3 |
Fauna
Translocation ¡V Stage 1 |
9 Oct 2017 |
18 Dec 2017 |
S7.2.2.3 |
Fauna
Translocation ¡V Stage 2 |
19 Dec 2017 |
28 Dec 2017 |
S7.2.2.3 |
Fauna
Translocation ¡V Stage 3 and 4 |
5 Jan 2018 |
5 Jan 2018 |
S7.2.2.4 |
Fauna
Translocation Report |
29 May 2018 |
15 Jan 2019 |
S7.2.1.4
& S7.2.2.6 |
Report
for Baseline Marine Ecological Survey on inter-tidal habitat (Lung Mei) |
20
Jul 2017 |
15
Jan 2019 |
S7.2.1.4
& S7.2.2.6 |
Report
for Baseline Marine Ecological Survey on inter-tidal habitat (Ting Kok) |
26
Jun 2017 |
5
Oct 2019 |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (1st
Report) |
11
Jul 2018 |
15
Dec 2018 |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(1st Report) |
11
Jul 2018 |
15
Dec 2018 |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (2nd
Report) |
29
Jan 2019 |
18
May 2019 |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(2nd Report) |
11
Jan 2019 |
18
May 2019 |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (3rd
Report) |
29
July 2019 |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(3rd Report) |
29
July 2019 |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (4th
Report) |
To
be submitted |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(4th Report) |
To
be submitted |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (5th
Report) |
To
be submitted |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(5th Report) |
To
be submitted |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Lung Mei (6th
Report) |
To
be submitted |
To
be submitted |
S7.2.1.4
& S7.2.2.6 |
Marine
Fauna Post-translocation Monitoring Report for Ting Kok
(6th Report) |
To
be submitted |
To
be submitted |
9.1.1
According to the approved EM&A Manual, the environmental site
inspection shall be formulation by ET Leader. The site inspection
and audits should be conducted twice per month by ET.
9.2.1
In this Reporting Period, 6 events of weekly joint site
inspection were
carried out for Contract 1 to evaluate site environmental
performance. The
summaries of the findings during site inspection are presented
in Table
9-1
and the details of site inspection can be found in
relevant EM&A monthly reports.
Table 9-1 Summary of Site Observations
Reporting Month |
Date of site
inspection |
Nos. of Findings/
Deficiencies |
Follow-Up
Status |
December 2020 |
18th and 28th December
2020 |
0 |
NA |
January 2021 |
12th and 25th
January 2021 |
0 |
NA |
February 2021 |
10th and 25th
February 2021 |
0 |
NA |
9.2.2
In the
Reporting Period, no non-compliance and observation was recorded during the
site inspection. The environmental performance of the
Project was therefore considered satisfactory.
10.1.1
In
the Reporting Period, no environmental complaint, summons and
prosecution was received.
10.1.2
The statistical summary table of environmental complaint, summons
and prosecution are presented in Tables
10-1, 10-2 and 10-3.
Table 10-1 Statistical Summary
of Environmental Complaints
Reporting Period |
Environmental Complaint
Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
|
1 ¡V 31
December 2020 |
0 |
2 |
NA |
1 ¡V 31
January 2021 |
0 |
2 |
NA |
1 ¡V 28
February 2021 |
0 |
2 |
NA |
Table 10-2 Statistical Summary
of Environmental Summons
Reporting Period |
Environmental Summons
Statistics |
||
Frequency |
Cumulative |
Summons Nature |
|
1 ¡V 31
December 2020 |
0 |
0 |
NA |
1 ¡V 31
January 2021 |
0 |
0 |
NA |
1 ¡V 28
February 2021 |
0 |
0 |
|