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 commenced on 1st
December 2017. Accordingly, the impact monitoring of the EM&A programme
commenced on the same date.
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
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 suspension of air
quality and noise monitoring was submitted to EPD on 28 April 2021 and the
Proposal was approved by EPD on 17 May 2021.
1.1.8
This is the 14th Quarterly EM&A report presenting the monitoring results and
inspection findings for the reporting period from 1st March 2021 to 31st
May 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
|
|
March 2021
|
·
E&M works;
·
Landscaping;
·
Lookout tower finishing works; and
·
Speed enforcement camera
|
|
April
2021
|
·
E&M works (installation of CCTV, public
announcement, fan and lighting system etc.);
·
Landscaping;
·
Lookout tower finishing works; and
·
Speed enforcement camera
|
|
May
2021
|
·
E&M works (installation of CCTV, public
announcement, fan and lighting system etc.); and
·
Landscaping
|
2.3
Summary of Environmental Submissions
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 was 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
|
Re-submitted to EPD on 12 April 2021
|
|
4
|
3.12
|
Mangrove Seedling Planting Proposal
|
Approved by EPD on 22 April 2021 (EPD ref.: () in
EP2/N5/C/46 Pt.9 dated 22 April 2021)
|
|
5
|
3.13
|
Detailed Landscape As-built
Drawing(s)
|
Re-submitted to EPD on 7 May 2021
|
|
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:
Ÿ
Air Quality;
Ÿ
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
|
Ÿ 1-hour TSP
Ÿ 24-hour TSP
|
|
Noise
|
Ÿ
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 – 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 – 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
|
Ÿ Parameters:
|
1-hour TSP and 24-hour TSP
|
|
Ÿ Frequency:
|
3 times every six
days for 1-hour TSP and once every 6 days for 24-hour TSP
|
|
Ÿ Duration:
|
Throughout the
construction period
|
Noise Monitoring
|
Ÿ Parameters:
|
LAeq(30min) and statistical results L10 & L90
|
|
Ÿ Frequency:
|
Leq (30min) in 6
consecutive Leq(5min) for once a week during
07:00-19:00 on normal weekdays
|
|
Ÿ 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 / Rion
NC-74 / Rion NC-75
|
|
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:-
Ÿ
A horizontal platform with appropriate support to secure the
samples against gusty wind should be provided;
Ÿ
No two samplers should be placed less than 2 meters apart;
Ÿ
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;
Ÿ
A minimum of 2 meters of separation from any supporting structure,
measured horizontally is required;
Ÿ
Before placing any filter media at the HVS, the power supply will
be checked to ensure the sampler work properly;
Ÿ
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.
Ÿ
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;
Ÿ
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.
Event Action Plan
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
Data Management and Data QA/QC Control
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.
Air Quality Monitoring
4.1.1
In the Reporting Period, air quality monitoring was performed at the proposed monitoring
locations A4 and A7.
4.2.1
There were 15 sessions
of 24-hour TSP monitoring scheduled in the Reporting Period. However, power supply for HVS at
Location A4 was disconnected by the Contractor since 30 March 2021, thus 10
sessions of 24-hour TSP at A4 were unable to carry out in the Reporting Period. Besides, power supply for HVS at
Location A7 was disconnected by the Contractor on 30 March 2021 and reconnected on 9 April
2021, and interrupted again on 5 May 2021.
The incident of 24-hour TSP monitoring are
summarized in below table.
|
Scheduled Monitoring Date
|
Status of 24-hr TSP Monitoring
|
|
A4
|
A7
|
|
30-Mar-21
|
Power failure
|
Power failure
|
|
1 Apr 2021
|
Power failure
|
Power failure
|
|
7 Apr 2021
|
Power failure
|
Make-up sample was conducted on 9 Apr 2021
|
|
13 Apr 2021
|
Power failure
|
On Schedule
|
|
19 Apr 2021
|
Power failure
|
On Schedule
|
|
24 Apr 2021
|
Power failure
|
On Schedule
|
|
29 Apr 2021
|
Power failure
|
On Schedule
|
|
5 May 2021
|
Power failure
|
Power failure
|
|
11 May 2021
|
Power failure
|
Power failure
|
|
17 May 2021
|
Power failure
|
Power failure
|
4.2.2
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
|
93
|
54
|
71
|
56
|
12
|
30
|
|
Record Date
|
9-Mar-21
|
26-Apr-21
|
14 sessions
|
6-Mar-21
|
18-Mar-21
|
5 sessions
|
|
A7
|
93
|
61
|
72
|
137
|
16
|
53
|
|
Record Date
|
9-Mar-21
|
26-Apr-21
|
14 sessions
|
24-Apr-21
|
19-Apr-21
|
10 sessions
|
Remark: There were 15 sessions of 24-hour TSP
monitoring scheduled in the Reporting Period, however, 5 session at A7 and 10 sessions
of A4 were failed due to the power issue.
4.2.3
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
|
4.2.4
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. No
Notification of Exceedance (NOE) was issued in this Reporting Period.
4.2.5
The summary of weather conditions during the Reporting Period is
presented in Appendix G.
4.2.6
Some of the 24-hour TSP monitoring
data of Location A4 and A7 were absent in the Reporting Period due to power
issue. Although the some events of
24-hour TSP monitoring were not able to carry out, the justification on whether
the ability of the EM&A programme to detect air quality impacts can be
maintained though monitoring was suspended is presented below.
(a)
All civil
works under the Project were substantial completed in the Reporting Period and
the impact source from the Project has been largely eliminated. The potential air
quality environmental impacts associated with the remaining works were
considered negligible. A
proposal for suspension of air quality and noise monitoring was submitted to
EPD on 28 April 2021 and the Proposal was approved by
EPD on 17 May 2021.
(b)
The 1-hour TSP monitoring
was measured in-situ during the
construction phase and it is capable to readily detect any non-compliance of
air quality. During the Reporting
Period, the 1-hour TSP monitoring results at Stations A4 and A7 are ranged from
54mg/m3 to 93mg/m3 which are far below the
Action/ Limit Level, it is considered non-compliance of air quality of 24-hour
TSP was unlikely to triggered.
(c)
April
and May 2021 is typical wet season in Hong Kong and the weather becomes humid
and hot. It is considered that the
dust impact is not significant when compare to dry season. There were no non-compliance of
air quality monitoring results recorded during the dry season in previous
months, and it is believed that non-compliance of air quality of 24-hour TSP in April
and May 2021 is not anticipated.
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, 11 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(*)
|
74
|
59
|
|
Record Date
|
15-Mar-21
|
14-Apr-21
12-May-21
|
|
N2a
|
74
|
56
|
|
Record Date
|
15-Mar-21
|
14-Apr-21
|
|
N3a(*)
|
67
|
51
|
|
Record Date
|
1-Apr-21
|
14-Apr-21
|
|
N4
|
66
|
53
|
|
Record Date
|
15-Mar-21
|
1-Apr-21
|
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:
Ÿ
Construction & Demolition (C&D)
Material;
Ÿ
Chemical Waste;
Ÿ
General Refuse; and
Ÿ
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
|
|
Mar 2021
|
Apr 2021
|
May 2021
|
|
Total C&D Materials (Inert) (‘000m3)
|
0.01
|
0
|
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)
|
0.01
|
0
|
0
|
Tuen Mun Area 38
|
Table 7-2 Summary
of Quantities of C&D Wastes
|
Types
of Waste
|
Quantity
|
Disposal
Location
|
|
Mar 2021
|
Apr 2021
|
May 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)
|
0.005
|
0.0105
|
0
|
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:
Ÿ
Daily for first week
Ÿ
three times per week for the second to fourth week
Ÿ
once a week for the
second to fourth month
Ÿ
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
|
Approval Status
|
|
S7.2.3.3
|
Seahorse
Translocation Plan
|
19 Sep 2017
|
30 Nov 2017
|
Approved by EPD
|
|
S7.2.3.8
|
Pre-translocation
Survey Report for Seahorse
|
1 Dec 2018
|
11
June 2020
|
Approved by EPD
|
|
S7.2.3.4
|
Seahorse
Translocation Report
|
29 Jan 2018
|
11
June 2020
|
Approved by EPD
|
|
S7.2.3.9
|
Post-translocation monitoring report (all reports)
|
|
|
1st Week
|
29 Jan 2018
|
To be updated by the
Contractor
|
The
report was submitted to EPD on 23 June 2021
|
|
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
|
12 April 2021
|
Approved by EPD on 27 Apr 21
|
|
Tenth Month
|
18 Nov 2018
|
12 April 2021
|
|
Eleventh Month
|
21 Dec 2018
|
12 April 2021
|
|
Twelfth Month
|
15 Feb 2019
|
12 April 2021
|
|
S7.2.3.10
|
Post-construction monitoring
report
|
To
be submitted
|
To
be submitted
|
Pending approval
|
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
