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 “Contractor”) responsible for construction
of the Project; 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 programme 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 Environmental Monitoring and
Audit (EM&A) programme, 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) were verified by IEC and submitted to EPD for endorsement. These Baseline Monitoring Reports have 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
This is the 40th monthly EM&A report presenting the monitoring results and inspection
findings for the reporting period from 1st to 31st March 2021.
1.2.1
The Monthly 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.
The responsibilities of respective parties are:
Engineer or Engineers
Representative (ER)
2.1.2
The ER is responsible for overseeing the construction works and
for ensuring that the works are undertaken by the Contractor in accordance with
the specification and contract requirements. The duties and responsibilities of
the ER with respect to EM&A are:
·
monitor the Contractor’s compliance with contract specifications,
including the effective implementation and operation of environmental
mitigation measures and other aspects of the EM&A programme;
·
instruct the Contractor to follow the agreed protocols or those in
the Contract Specifications in the event of exceedances or complaints;
·
comply with the agreed Event and Action Plans in the event of any
exceedance;
·
liaise with the IEC and assist as necessary in the implementation
of the EM&A program; and
·
participate in joint site inspection undertaken by
the ET and IEC.
The Contractor
2.1.3
The duties and responsibilities of the Contractor are:
·
work within the scope of the construction contract and other
tender conditions;
·
provide assistance to the ET in carrying out monitoring;
·
Submit proposals on mitigation measures in
case of exceedances of Action and Limit levels in accordance with the Event and
Action Plans;
·
implement measures to reduce impact where Action and Limit levels
are exceeded;
·
implement the corrective actions instructed by ER/ET/IEC;
·
participate in the site inspections undertaken by the ET and the
IEC, as required, and undertake any corrective actions instructed by ER/ET/IEC;
and
·
adhere to the procedures for carrying out
complaint investigation.
Environmental Team (ET)
2.1.4
The ET will be led and managed by the ET Leader. The ET leader will have relevant
education, training, knowledge, experience and professional qualifications and
the appointment will be subject to the approval of the Director of
Environmental Protection and ER.
Suitably qualified staff will be included in the ET, and the ET should
not be in any way an associated body of the Contractor or the Independent
Environmental Checker (IEC) for the Project.
2.1.5
The duties and responsibilities of the ET are:
·
monitor various environmental parameters as required in this
EM&A Manual;
·
assess the EM&A data and review the success of the EM&A programme determining the adequacy of the mitigation
measures implemented and the validity of the EIA predictions as well as
identify any adverse environmental impacts before they arise;
·
carry out regular site inspection to investigate and audit the Contractor’s
site practice, equipment and work methodologies with respect to pollution
control and environmental mitigation, and effect proactive action to pre-empt
issues;
·
review the Contractor’s working programme
and methodology, and comment as necessary;
·
review and prepare reports on the environmental monitoring data,
site environmental conditions and audits;
·
report on the environmental monitoring and audit results and
conditions to the IEC, Contractor, EPD and ER;
·
recommend suitable mitigation measures to the Contractor in the
case of exceedance of Action and Limit levels in accordance with the Event and
Action Plans;
·
adhere to the procedures for carrying out complaint investigation;
and,
·
the ET Leader will keep a contemporaneous
log-book and record each and every instance or circumstance or change of
circumstances which may affect the environmental impact assessment and every
non-conformance with the recommendations of the EIA Reports or the EPs.
Independent Environmental Checker (IEC)
2.1.6
The duties and responsibilities of the IEC are:
·
review and monitor the implementation of the EM&A programme and the overall level of environmental
performance being achieved;
·
arrange and conduct monthly independent site inspections/audits of
the works;
·
validate and confirm the accuracy of monitoring results,
monitoring equipment, monitoring stations, monitoring procedures and locations
of sensitive receivers;
·
carry out random sample check and audit on monitoring data and
sampling procedures, etc;
·
audit the EIA recommendations and requirements against the status
of implementation of environmental protection measures on site;
·
on needed basis, audit the Contractor’s construction methodology
and agree the appropriate, reduced impact alternative in consultation with ER,
the ET and the Contractor;
·
provide specialist advice to ER and the Contractor on
environmental matters;
·
check complaint cases and the effectiveness of corrective
measures;
·
check that the necessary mitigation measures recommended in the
EIA, EP and Contract documents, or as subsequently required, are effectively
implemented;
·
review EM&A report submitted by the ET leader and feedback
audit results to ET by signing off relevant EM&A proformas;
·
report the findings of site inspections/ audits and other
environmental performance reviews to ER, ET, EPD and the Contractor;
2.2.1
The 3-month rolling construction program is enclosed in Appendix C and the major construction
activities undertaken in the Reporting Period are listed below:-
·
E&M
works;
·
Landscaping;
·
Lookout
tower finishing works; and
·
Speed enforcement camera
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): 5213-728-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
|
Re-submitted to EPD on 19 March 2021
|
|
5
|
3.13
|
Detailed Landscape As-built Drawing(s)
|
Re-submitted to EPD on 12 April 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 Environmental Monitoring and Audit requirements are set out in
the EM&A manual. Environmental issues such as air quality and construction
noise were identified as the key issues during the construction phase of the
Project. 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 programme
covers the following environmental issues:
Ÿ
Air Quality; and
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 D.
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 and illustrated in Appendix D.
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 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, 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 D.
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
3-6.
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 3-7.
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:-
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 Appendix E.
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
3-10, 3-11 and 3-12 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 F.
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 were performed at the proposed monitoring locations A4 and A7. The
air quality monitoring schedule is presented in Appendix G and the monitoring results are summarized in the following
sub-sections.
4.2.1
In the Reporting Period, 5 sessions of 1-hour TSP and were performed
at Stations A4 and A7. There were 6 sessions
of 24-hour TSP monitoring scheduled in the Reporting Period, however, 1 session
at A4 and A7 was failed due to the power issue. The monitoring results for air quality monitoring are summarized in Tables 4-1 to 4-2. The detailed 24-hour
TSP and 1-hour TSP monitoring data are presented in Appendix H and the relevant graphical plots are shown in Appendix I. The
meteorological data during the impact monitoring period are summarized in Appendix J.
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results (A4)
|
Date
|
24-hour TSP (mg/m3)
|
1-hour TSP (mg/m3)
|
|
Date
|
Start Time
|
1st reading
|
2nd reading
|
3rd reading
|
|
1-Mar-21
|
34
|
3-Mar-21
|
9:27
|
73
|
67
|
69
|
|
6-Mar-21
|
56
|
9-Mar-21
|
13:01
|
89
|
93
|
78
|
|
12-Mar-21
|
27
|
15-Mar-21
|
9:10
|
74
|
71
|
70
|
|
18-Mar-21
|
12
|
20-Mar-21
|
9:33
|
80
|
83
|
75
|
|
24-Mar-21
|
19
|
26-Mar-21
|
13:50
|
78
|
75
|
69
|
|
30-Mar-21
|
#
|
|
|
Average
(Range)
|
30
(12 – 56)
|
Average
(Range)
|
76
(67 – 93)
|
Remark (#) power
failure for HVS
Table 4-2 Summary
of 24-hour and 1-hour TSP Monitoring Results (A7)
|
Date
|
24-hour TSP (mg/m3)
|
1-hour TSP (mg/m3)
|
|
Date
|
Start Time
|
1st reading
|
2nd reading
|
3rd reading
|
|
1-Mar-21
|
86
|
3-Mar-21
|
12:45
|
69
|
66
|
63
|
|
6-Mar-21
|
40
|
9-Mar-21
|
13:05
|
93
|
87
|
80
|
|
12-Mar-21
|
59
|
15-Mar-21
|
9:15
|
72
|
76
|
77
|
|
18-Mar-21
|
50
|
20-Mar-21
|
9:42
|
65
|
69
|
75
|
|
24-Mar-21
|
20
|
26-Mar-21
|
9:21
|
76
|
79
|
74
|
|
30-Mar-21
|
#
|
|
|
Average
(Range)
|
51
(20 – 86)
|
Average
(Range)
|
75
(63 – 93)
|
Remark (#) power
failure for HVS
4.2.2
As shown in Tables 4-1 to 4-2, all the 1-hour TSP and
24-hour TSP monitoring results were below
the Action / Limit Level. No
Notification of Exceedance (NOE) was issued in this Reporting Period.
5.1.1
In the Reporting Period, construction noise quality
monitoring were performed at the designated monitoring
locations N1, N2a, N3a and N4. The noise quality monitoring schedule is presented in Appendix G and the monitoring results are summarized in the following
sub-sections.
5.2.1
In the Reporting Period, 4 sessions
of noise monitoring were carried out at the designated locations. Free-field status were performed
at N1 and N3a and
façade correction (+3 dB(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 to 5-4. The detailed noise monitoring data are presented in Appendix H and the relevant graphical plots are shown in Appendix I.
Table 5-1 Construction
Noise Monitoring Results of N1, dB(A)
|
Date
|
Start Time
|
Leq30min
|
*Corrected Leq30min
|
|
3-Mar-21
|
9:30
|
57
|
60
|
|
9-Mar-21
|
13:01
|
62
|
65
|
|
15-Mar-21
|
13:08
|
71
|
74
|
|
26-Mar-21
|
9:01
|
63
|
66
|
Remark: (*)
A façade correction of +3dB(A) has been added
according to acoustical principles and EPD guidelines.
Table 5-2 Construction
Noise Monitoring Results of N2a, dB(A)
|
Date
|
Start Time
|
Leq30min
|
Corrected Leq30min
|
|
3-Mar-21
|
10:02
|
65
|
NA
|
|
9-Mar-21
|
13:35
|
64
|
NA
|
|
15-Mar-21
|
13:40
|
74
|
NA
|
|
26-Mar-21
|
9:34
|
64
|
NA
|
Table 5-3 Construction
Noise Monitoring Results of N3a, dB(A)
|
Date
|
Start Time
|
Leq30min
|
*Corrected Leq30min
|
|
3-Mar-21
|
10:45
|
58
|
61
|
|
9-Mar-21
|
14:09
|
61
|
64
|
|
15-Mar-21
|
14:20
|
60
|
63
|
|
26-Mar-21
|
10:15
|
62
|
65
|
Remark: (*)
A façade correction of +3dB(A) has been added
according to acoustical principles and EPD guidelines.
Table 5-4 Construction
Noise Monitoring Results of N4, dB(A)
|
Date
|
Start Time
|
Leq30min
|
Corrected Leq30min
|
|
3-Mar-21
|
15:15
|
58
|
NA
|
|
9-Mar-21
|
14:41
|
61
|
NA
|
|
15-Mar-21
|
15:00
|
66
|
NA
|
|
26-Mar-21
|
10:57
|
56
|
NA
|
5.2.2
As shown in
Table
5-1 to Table 5-4, all the
designated locations measured results were below 75dB(A)
of the acceptance criteria. Furthermore, no
complaint on construction noise was registered,
indicating no exceedance of Action Level. No non-compliance was therefore found
during the Reporting Period.
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 K.
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
|
|
Total C&D Materials (Inert) (‘000m3)
|
0.01
|
NA
|
|
Reused in this Contract (Inert) (‘000m3)
|
0
|
NA
|
|
Reused in other
Projects (Inert) (‘000m3)
|
0
|
NA
|
|
Disposal as Public
Fill (Inert) (‘000m3)
|
0.01
|
Tuen Mun Area 38
|
Table 7-2 Summary
of Quantities of C&D Wastes
|
Types
of Waste
|
Quantity
|
Disposal
Location
|
|
Recycled Metal (‘000kg)
|
0
|
NA
|
|
Recycled Paper / Cardboard Packing (‘000kg)
|
0
|
NA
|
|
Recycled Plastic (‘000kg)
|
0
|
NA
|
|
Chemical Wastes (‘000kg)
|
0
|
NA
|
|
General Refuse (‘000m3)
|
0.005
|
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
|
|
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
|
12 April 2021
|
|
Tenth Month
|
18 Nov 2018
|
12 April 2021
|
|
Eleventh Month
|
21 Dec 2018
|
|
