EXECUTIVE SUMMARY
I.
Introduction
This
is the 24th Monthly EM&A Report prepared by Fugro Technical
Services Limited for the Contract No. HY/2018/08 Central Kowloon Route ¡V
Central Tunnel. The Contract No. HY/2018/08 commenced on 19 September 2019.
This report summarized the monitoring results and audits findings of the
EM&A programme under the issued EP (EP No.: EP-457/2013/D) and in
accordance with the EM&A Manual during the reporting period from 01/08/2021
to 31/08/2021.
II.
Summary of Main Works Undertaken and Key Measures Implemented
The
main construction works carried out in the reporting period were as follow:
Ho Man Tin
¡P
Drill and Blast excavation;
¡P
Mucking out from tunnel;
¡P
Site and shaft Installation;
¡P
Pilot tunnel exaction by Tunnel Boring Machine (TBM).
Yau Ma Tei
¡P
Drill and blast excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Ma Tau Kok
¡P
Drill and break excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Princess
Margaret Road
¡P Drilling and extensive grouting.
Ka Tak
Barging Point
¡P
Spoiling handling and disposal.
III.
Summary of Exceedances, Investigation and Follow-up
No
Action and Limit Level exceedance was recorded for construction dust monitoring
in the reporting month.
Three
(3) Action Level exceedances were recorded for construction noise
due to the noise-related complaints received in the reporting month. No Limit
Level exceedance was recorded for construction noise monitoring in the
reporting month.
IV. Complaint Handling, Prosecution and Public Engagement.
One (1) noise-related
complaint was received in the last reporting month (i.e. 17 July 2021). The
investigation report for the complaint was finalized on 23 August 2021.
One (1) noise-related, one
(1) air & odour- related, and one (1) noise & odour related complaint (i.e.
23, 26 August 2021) were received in the reporting month.
The complaint cases in July and August 2021
are summarized in Table I.
Table
I Environmental
Complaints Log
Complaint Log No. |
Date of Complaint |
Received From |
Nature of Complaint |
Status |
EC073_CKRCT20210717_264 |
17th July
2021 |
Contract Complaint
Hotline |
Construction Noise |
Investigation report
was finalized on 23 Aug 2021. |
EC075_CKRCT20210823_289 |
23rd
August 2021 |
Email |
Air & Odour |
Investigation report
was finalized on 6 Sep 2021. |
EC076_CKRCT
2020826_292 |
26th
August 2021 |
Contract Complaint
Hotline |
Construction Noise
& Odour |
Investigation report
was finalized on 6 Sep 2021. |
EC077_CKRCT20210826_291 |
26th
August 2021 |
Email & Contract
Complaint Hotline |
Construction Noise |
Investigation report
was finalized on 9 Sep 2021. |
No
notification of summons and prosecutions were received in the reporting period.
No
public engagement activities were conducted in the reporting period.
V.
Reporting Change
There
were no reporting changes during the reporting month.
VI.
Future Key Issues
The
main works will be anticipated in the next reporting period are as follow:
Ho Man Tin
¡P
Drill and Blast excavation;
¡P
Mucking out from tunnel;
¡P
Site and shaft Installation;
¡P
Pilot tunnel exaction by Tunnel Boring Machine (TBM).
Yau Ma Tei
¡P
Drill and blast excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Ma Tau Kok
¡P
Drill and break excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Princess Margaret
Road
¡P Drilling and extensive grouting.
Ka Tak
Barging Point
¡P
Spoiling handling and disposal.
The
recommended mitigation measures corresponding to the main works in the next
reporting period are listed as follow:
¡P
Good relationship shall be maintained with the nearby sensitive
receivers/ stakeholders which may be affected by the construction works such as
providing better/ more detail information of the work nature and inform in
advance of the works to the nearby residents;
¡P
Any excavated, stockpile of dusty material or load of dusty
materials on a vehicle leaving a construction site should be covered entirely
by impervious sheeting;
¡P
All construction plants / machineries should be checked / serviced
on a regular basis during the courses of construction to minimize the emission
of noise generation and eliminate dark smoke emission;
¡P
All C&D materials generated should be transported and stored at
temporary storage area. Suitable materials should be sorted for reuse on-site;
¡P
Every vehicle shall be cleaned thorough at the designated wheel
washing area onsite;
¡P
Wastewater generated from drilling shall be properly collected for
reuse or treated by wastewater treatment facilities before discharge;
¡P
Provision of drip trays for equipment likely cause spillage of chemical
/ fuel, and provide routine maintenance;
¡P
Erecting temporary noise barrier for noisy Powered Mechanical
Equipment (PME) and deployment of Quality Powered Mechanical Equipment (QPME)
as many as practicable;
¡P
Conditions in the Environmental Permit and License should be
followed;
¡P
All recommended mitigation measures specified in the approved EIA
Report and EM&A Manual shall be implemented;
¡P
All vehicles should be cleaned
before leaving the construction site to ensure no muddy deposited by them on
roads.
The
following EP submissions were submitted during the reporting month:
Table II Status of Required Submission under Environmental
Permit
EP Condition |
Submission |
Submission Date |
3.4 |
Monthly EM&A Report (July 2021) |
13 August 2021 |
Contents
1.3 Construction Programme and Activities
1.4 Works undertaken during the month
1.5 Status of Environmental Licences, Notification and Permits
2.1 Construction Dust and Noise Monitoring Location
2.2 Construction Dust Monitoring
2.3 Construction Noise Monitoring
2.4 Construction Dust and Noise Monitoring Schedule
2.5 The Action and Limit Levels
3.1 Construction Dust Monitoring
3.2 Construction Noise Monitoring
5.1 Complaint Handling, Prosecution and Public Engagement
5.2 Summary of Environmental Non-Compliance
5.3 Summary of Monitoring Exceedance
Tables
Table I ¡V Environmental
Complaints Log
Table II ¡V Status of Required Submission under
Environmental Permit
Table 1.1 ¡V Contact Information of Key
Personnel
Table 1.2 ¡V Environmental Licenses, Notification
and Permits Summary
Table 2.1 ¡V Construction Dust and Noise
Monitoring Location
Table 2.2 ¡V Construction Dust Monitoring Equipment
Table 2.3 ¡V Construction Noise Monitoring Parameters, Frequency and Duration
Table 2.4 ¡V Construction Noise Monitoring Equipment
Table 3.1 ¡V Summary of 1-hour TSP Monitoring Results in the Reporting Period
Table 3.2 ¡V Summary of 24-hour TSP Monitoring Results in the Reporting Period
Table 3.3 ¡V Summary of Construction Noise
Monitoring Results in the Reporting Period
Table 4.1 ¡V Observations and Recommendation
of Site Inspection in the Reporting Period
Table 5.1 ¡V Environmental Complaints Log
Table 6.1 ¡V Status of Required Submission under Environmental Permit
Figures
Figure 1 The Site Layout Plan of the
Contract
Figure 2.1 The Location of the Construction
Dust and Noise Monitoring Stations (Ho Man Tin)
Figure 2.2 The Location of the Construction
Dust and Noise Monitoring Stations (Ma Tau Kok)
Figure 2.3 The Location of the Construction
Dust and Noise Monitoring Stations (Yau Ma Tei)
Appendices
Appendix A Construction Programme
Appendix
B Project Organization Chart
Appendix
C Calibration Certificate for
Construction Dust Monitoring Equipment
Appendix
D Calibration Certificate for Construction
Noise Monitoring Equipment
Appendix
E Environmental Monitoring Schedule
Appendix
F Action and Limit Levels for
Construction Dust and Noise Monitoring
Appendix G Construction Dust Monitoring Results and Meteorological Observations
Appendix
H Construction Noise Monitoring Results
Appendix
I Event and Action Plan
Appendix
J Implementation Status of
Environment Mitigation Measures (Construction Phase)
Table 1.1
Contact
Information of Key Personnel
Party |
Position |
Name |
Telephone |
Highways Department (HyD) |
E13/CKR |
Mr. Joe Lam |
2762 3380 |
Arup-Mott MacDonald Joint Venture (AMMJV) |
Senior Resident Engineer |
Mr. Ben Poon |
3619 5967 |
ERM-Hong Kong, Limited (ERM) |
Independent Environmental Checker (IEC) |
Ms. Mandy To |
2271 3000 |
Bouygues Travaux Publics (BTP) |
Environmental Manager |
Mr. Simon Wong |
9281 4346 |
Fugro Technical Services Limited |
ET Leader |
Mr. David Hung |
3565 4371 |
¡P
Drill and Blast excavation;
¡P
Mucking out from tunnel;
¡P
Site and shaft Installation;
¡P
Pilot tunnel exaction by Tunnel Boring Machine (TBM).
Yau Ma Tei
¡P
Drill and blast excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Ma Tau Kok
¡P
Drill and break excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Erection of noise enclosure;
¡P
Site and shaft installation.
Princess Margaret Road
¡P Drilling and extensive grouting.
Ka Tak Barging Point
¡P
Spoiling handling and disposal.
Table 1.2 Environmental
Licenses, Notification and Permits Summary
Permit/
Notification/ License |
Reference No |
Valid From |
Valid Till |
Form NB |
448930, 448970,
448971 |
Mid-Sep 2019 |
NA |
Billing Account for Disposal of C&D waste |
Account no. 7034790 |
6 Aug 2019 |
NA |
Chemical
Waste Producer Registration (Ho Man
Tin Construction site) |
5111-236-B2557-02 |
25 Sep 2019 |
NA |
Chemical
Waste Producer Registration (Yau Ma
Tei Construction site) |
5213-225-B2557-05 |
19 Apr 2021 |
NA |
Chemical
Waste Producer Registration (Ma Tau
Kok Construction site) |
5213-247-B2557-06 |
19 Apr 2021 |
NA |
Construction Noise Permit |
|||
Construction
Noise Permit (Ho Man
Tin Construction site) |
GW-RE0679-21 |
14 Jul 2021 |
13 Sep 2021 |
Construction
Noise Permit (Yau Ma
Tei Construction site) |
GW-RE0680-21 |
17 Jul 2021 |
16 Sep 2021 |
Construction
Noise Permit (Ma Tau
Kok Construction site) |
GW-RE0637-21 |
4 Jul 2021 |
3 Nov 2021 |
Construction
Noise Permit (Ma Tau
Kok Construction site) |
GW-RE0818-21 |
26 Aug 2021 |
16 Feb 2022 |
Construction
Noise Permit (Kai Tak Barging Point) |
GW-RE0423-21 |
10 May 2021 |
8 Nov 2021 |
Construction
Noise Permit (Extensive
Grouting at Chi Man Street ¡V 19:00-23:00) |
GW-RE0682-21 |
22 Jul 2021 |
21 Sep 2021 |
Construction
Noise Permit (Extensive
Grouting at Chi Man Street ¡V 23:00-04:00) |
GW-RE0667-21 |
16 Jul 2021 |
14 Oct 2021 |
Construction
Noise Permit (Extensive
Grouting at Chi Man Street ¡V 23:00-07:00) |
GW-RE0765-21 |
12 Aug 2021 |
5 Oct 2021 |
Water Discharge License |
|||
Water
Discharge License |
WT00034873-2019 (Ho Man
Tin Construction site) |
22 Nov 2019 |
30 Nov 2024 |
WT00035436-2019 (Portion 18) |
2 Apr 2020 |
30 Apr 2025 |
|
WT00037883-2021 (Yau Ma
Tei Construction site) |
30 Apr 2021 |
30 Apr 2026 |
|
WT00037723-2021 (Ma Tau
Kok Construction site) |
7 Apr 2021 |
30 Apr 2026 |
Table 2.1
Construction Dust and Noise Monitoring Locations
Dust Monitoring Station ID |
Noise Monitoring Station ID |
Monitoring Location |
M-A3 |
M-N3 |
SKH Tsoi Kung Po Secondary School |
/ |
E-N12a |
19 Hing Yan Street |
E-A14a |
E-N21a |
Block B of Merit Industrial Centre |
W-A6 |
/ |
Man Cheong building |
/ |
W-N18 |
Hydan Place |
/ |
W-N25A |
Prosperous Garden Block 1 |
Notes:
1. The dust and noise monitoring
stations proposed in the EM&A Manual for M-A6/ M-N6 (i.e. Ko Fai House,
Kwun Fai Court) was not available for impact dust and noise monitoring,
therefore impact monitoring was conducted at M-A3/ M-N3 as an alternative which
was agreed by the ER, IEC and EPD;
2. The noise monitoring station proposed
in the EM&A Manual for E-N12 (i.e. Grand Waterfront Tower 3) was not
available for impact dust and noise monitoring, therefore impact monitoring was
conducted at E-N12a as an alternative which was agreed by the ER, IEC and EPD;
3. The dust and noise monitoring
stations proposed in the EM&A Manual for E-A14 (i.e. Wyler Gardens) and E-N21 (i.e Hang Chien
Court Block J) was not available for impact dust and noise monitoring,
therefore impact monitoring was conducted at E-A14a/ E-N21a as an alternative
which was agreed by the ER, IEC and EPD;
4. The dust monitoring stations
proposed in the EM&A Manual for W-A5 (i.e. The Coronation) was not
available for impact dust monitoring, therefore impact monitoring was conducted
at W-A6 as an alternative which was agreed by the ER, IEC and EPD.
Monitoring Requirement
Monitoring Equipment
Table 2.2 Construction
Dust Monitoring Equipment
Equipment |
Brand |
Model |
Serial No. |
High Volume Sampler (24-hour TSP) |
Tisch |
TE-5170 |
4388 |
Calibrator |
Tisch |
TE-5025A |
2154 |
Portable direct reading dust meter (1-hour TSP) |
Sibata |
LD-5R |
620480 |
Monitoring Methodology
for HVS
¡P
Sufficient support is provided to secure the samplers against gusty
wind.
¡P
No two samplers are placed less than 2 meters apart.
¡P
The distance between the sampler and an obstacle, such as
buildings, is at least twice the height that the obstacle protrudes above the
sampler.
¡P
A minimum of 2 meters of separation from walls, parapets and
penthouses is required for rooftop samples.
¡P
A minimum of 2 meters separation from any supporting structure,
measured horizontally is required.
¡P
No furnaces or incineration flues are nearby.
¡P
Airflow around the samplers is unrestricted.
¡P
The samplers are more than 20 meters from the drip line.
¡P
Any wire fence and gate, to protect the sampler, should not cause
any obstruction during monitoring.
¡P
Permission must be obtained to set up the samplers and to obtain
access to the monitoring stations.
¡P
A secured supply of electricity is needed to operate the samplers.
Maintenance
and Calibration for HVS
Monitoring Methodology
for Direct Reading Dust Meter
a) Pulling up the air sampling inlet cover
b) Changing the Mode 0 to BG
c) Pressing Start/Stop switch
d) Turning the knob to SENSI.ADJ and press it
e) Pressing Start/Stop switch again
f) Returning the knob to the position MEASURE slowly
g) Pressing the timer set switch to set measuring time
h) Removing the cap and start the measurement
Maintenance
and Calibration for Direct Reading Dust Meter
Monitoring
Requirement
Table 2.3
Construction Noise Monitoring Parameters, Frequency and Duration
Parameter |
Duration |
Frequency |
A-weighted equivalent continuous sound pressure level (Leq). L10 and L90 were also recorded |
30 minutes |
At least once per week |
Monitoring Equipment
Table 2.4 Construction
Noise Monitoring Equipment
Equipment |
Brand |
Model |
Serial No. |
Acoustic Calibrator |
Casella |
CEL-120/1 |
5230736 |
Sound Level Meter |
Casella |
CEL-63X |
1488293 |
Monitoring Methodology
a) Free field measurements was made at monitoring location M-N3. A correction of +3 dB(A) shall be made to the free field measurements.
b) The battery condition should be checked to ensure good functioning of the meter.
c) Parameters such as frequency weighting, the time weighting and the measurement time should set as follow:
(i) Frequency weighting: A
(ii) Time weighting: Fast
(iii) Measurement time: 30 minutes
d) Prior to and after noise measurement, the meter shall be calibrated using the calibrator for 94.0 dB at 1000 Hz. If the difference in the calibration level before and after measurement is more than 1.0 dB, the measurement will be considered invalid and repeat of noise measurement is required after re-calibration or repair of the equipment.
e) The wind speed at the monitoring station shall be checked with the portable wind meter. Noise monitoring should be cancelled in the presence of fog, rain, and wind with a steady speed exceeding 5 m/s, or wind with gusts exceeding 10 m/s.
f) Noise measurement should be paused during periods of high intrusive noise if possible and observation shall be recorded when intrusive noise is not avoided.
g) At the end of the monitoring period, the Leq, L10 and L90 should be recorded. In addition, site conditions and noise sources should also be recorded on a standard record sheet.
Maintenance
and Calibration
a) The microphone head of the sound level meter and calibrator should be cleaned with a soft cloth at quarterly intervals.
b) The sound level meter and calibrator should be calibrated annually by a HOKLAS laboratory or the manufacturer.
The
calibration certificates for noise monitoring equipment are provided in Appendix D.
Table 3.1 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
Station ID |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
M-A3 |
58 |
52-65 |
333 |
500 |
Table 3.2 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
Station ID |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
M-A3 |
32 |
23-59 |
153 |
260 |
Table 3.3 Summary
of Construction Noise Monitoring Results in the Reporting Period
Station ID |
1Measured Noise Level, dB(A), Leq (30 mins) |
1 2Corrected Noise Level, dB(A), Leq (30 mins) |
Action
Level |
3Limit Level dB(A), Leq (30 mins) |
M-N3 |
67.9-68.7 |
N.A. |
When one documented compliant is received |
For Schools: 70dB(A) during normal teaching period and 65 dB(A) during examination periods |
Notes:
1. Free field noise levels
were adjusted with a correlation of +3 dB(A);
2. Corrected Noise Level =10*
log (10^ (Measured Noise Level/10) ¡V 10^ (Baseline Noise Level/10)), where the Baseline
Noise Level = 67.7 dB(A);
3. The Limit Level 70 dB(A)
was adopted as there was no examination during the reporting period.
Table 4.1 Observations
and Recommendation of Site Inspection in the Reporting Period
Environmental
Aspect |
Date |
Observations
and Recommendations |
Follow-up
Actions |
Air Quality |
24th August 2021 |
The Contractor was reminded to provide wheel washing for all vehicles that leave the construction site to prevent dusty materials out of the site boundary. |
The item was rectified by the Contractor on 30th August 2021. |
Noise |
Nil |
Nil |
Nil |
Water Quality |
Nil |
Nil |
Nil |
Waste Management |
Nil |
Nil |
Nil |
Landscape and Visual |
Nil |
Nil |
Nil |
Permit/ Licenses |
Nil |
Nil |
Nil |
Table 5.1 Environmental
Complaints Log
Complaint Log No. |
Date of Complaint |
Received From |
Nature of Complaint |
Status |
EC073_CKRCT20210717_264 |
17th July
2021 |
Contract Complaint
Hotline |
Construction Noise |
Investigation report
was finalized on 23 Aug 2021. |
EC075_CKRCT20210823_289 |
23rd
August 2021 |
Email |
Air & Odour |
Investigation report
was finalized on 6 Sep 2021. |
EC076_CKRCT
2020826_292 |
26th
August 2021 |
Contract Complaint
Hotline |
Construction Noise
& Odour |
Investigation report
was finalized on 6 Sep 2021. |
EC077_CKRCT20210826_291 |
26th
August 2021 |
Email & Contract
Complaint Hotline |
Construction Noise |
Investigation report
was finalized on 8 Sep 2021. |
Table 6.1
Status of Required Submission under Environmental Permit
EP Condition |
Submission |
Submission Date |
3.4 |
Monthly EM&A Report (July 2021) |
13 August 2021 |
Ho Man Tin
¡P
Drill and Blast excavation;
¡P
Mucking out from tunnel;
¡P
Site and shaft Installation;
¡P
Pilot tunnel exaction by Tunnel Boring Machine (TBM).
Yau Ma Tei
¡P
Drill and blast excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Site and shaft installation;
¡P
Erection of noise enclosure.
Ma Tau Kok
¡P
Drill and break excavation;
¡P
Mucking out from tunnel;
¡P
Canopy installation;
¡P
Site and shaft installation;
¡P
Erection of noise enclosure.
Princess Margaret Road
¡P Drilling and extensive grouting.
Ka Tak Barging Point
¡P
Spoiling handling and disposal.
¡P
Good relationship shall be maintained with the nearby sensitive
receivers/ stakeholders which may be affected by the construction works such as
providing better/ more detail information of the work nature and inform in
advance of the works to the nearby residents;
¡P
Any excavated, stockpile of dusty material or load of dusty
materials on a vehicle leaving a construction site should be covered entirely
by impervious sheeting;
¡P
All construction plants / machineries should be checked / serviced
on a regular basis during the courses of construction to minimize the emission
of noise generation and eliminate dark smoke emission;
¡P
All C&D materials generated should be transported and stored at
temporary storage area. Suitable materials should be sorted for reuse on-site;
¡P
Every vehicle shall be cleaned thorough at the designated wheel
washing area onsite;
¡P
Wastewater generated from drilling shall be properly collected for
reuse or treated by wastewater treatment facilities before discharge;
¡P
Provision of drip trays for equipment likely cause spillage of
chemical / fuel, and provide routine maintenance;
¡P
Erecting temporary noise barrier for noisy Powered Mechanical
Equipment (PME) and deployment of Quality Powered Mechanical Equipment (QPME)
as many as practicable;
¡P
Conditions in the Environmental Permit and License should be
followed;
¡P
All recommended mitigation measures specified in the approved EIA
Report and EM&A Manual shall be implemented.
¡P
All vehicles should be cleaned
before leaving the construction site to ensure no muddy deposited by them on
roads.
Air Quality Impact
¡P The Contractor was reminded to provide wheel washing for all vehicles that leave the construction site to prevent dusty materials out of the site boundary.
Construction Noise Impact
¡P No specific observation was identified in the reporting month.
Water Quality Impact
¡P No specific observation was identified in the reporting month.
Waste Management
¡P No specific observation was identified in the reporting month.
Landscape and Visual Impact
¡P No specific observation was identified in the reporting month.
Permit/ Licenses
¡P No specific observation was identified in the reporting month.