I.
Introduction
This is the 1st Monthly EM&A
Report prepared by Fugro Technical Services Limited
for the Contract no. HY/2018/08 Central Kowloon Route – 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/C) and in accordance with
the EM&A Manual during the reporting period from 20/09/2019 to 30/09/2019.
II.
Summary of Main Works Undertaken and
Key Measures Implemented
No construction works were carried out in the
reporting period.
No particular key mitigation measures were
taken during the reporting period.
III.
Summary of Exceedances,
Investigation and Follow-up
No Action or Limit Level Exceedance
was recorded in the reporting period.
IV.
Complaint Handling, Prosecution and
Public Engagement
No complaints, 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:
·
Pre-treatment for diaphragm wall;
·
Pre-drilling for ventilation building
foundation.
The recommended mitigation measures
corresponding to the main works in the next reporting period are listed as
follow:
·
Mitigation measures in form of regular
watering under a good site practice should be adopted;
·
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;
·
Bulk stock of cement, dry pulverised
fuel ash (PFA) or works of grout mixing should be covered entirely by
impervious sheeting or placed in an area sheltered on the top and the 3 sides;
·
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;
·
All C&D materials generated should
be transported and stored at temporary storage area. Suitable materials should
be sorted for reuse on-site;
·
Wastewater to be treated by wastewater
treatment facilities before discharge;
·
Provision of drip trays for equipment
likely cause spillage of chemical / fuel, and provide routine maintenance;
·
Conditions in the Environmental Permit
and License should be followed;
·
All recommended mitigation measures
specified in the approved EIA Report and EM&A Manual shall be implemented.
The following EP submissions (EP-457/2013/C)
were submitted during the reporting month:
Table I Status of Required Submission under
Environmental Permit
EP Condition |
Submission |
Submission Date |
2.8 |
Landscape Mitigation Plan of the Project |
27 September 2019 |
2.9 |
Construction Noise
Mitigation Measure Plan |
27 September 2019 |
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
Tables
Table I – Status of
Required Submission under Environmental Permit
Table 1.1 – Contact Information of Key Personnel
Table 1.2 – Environmental Licenses, Notification
and Permits Summary
Table 2.1 – Construction Dust and Noise
Monitoring Location
Table 2.2 – Construction Dust Monitoring
Equipment
Table 2.3 – Construction Noise Monitoring
Parameters, Frequency and Duration
Table 2.4 – Construction Noise Monitoring
Equipment
Table 3.1 – Summary of 1-hour TSP Monitoring
Results in the Reporting Period
Table 3.2 – Summary of 24-hour TSP Monitoring
Results in the Reporting Period
Table 3.3 – Summary of Construction Noise Monitoring
Results in the Reporting Period
Table 4.1 – Observations and Recommendation of
Site Inspection in the Reporting Period
Table 6.1 – Status of Required Submission under
Environmental Permit
Figures
Figure 1 The Site Layout Plan of the Project
Figure 2 The Location of the Construction Dust and Noise
Monitoring Station
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)
Appendix K Cumulative Statistics on Exceedances,
Complaints, Notifications of Summons and Successful Prosecutions
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 |
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 |
5111-236-B2557-02 |
25 Sep 2019 |
NA |
Table 2.1
Construction Dust and Noise Monitoring Location
Dust Monitoring Station ID |
Noise Monitoring Station ID |
Monitoring Location |
M-A3 |
M-N3 |
SKH
Tsoi Kung Po Secondary School |
Notes:
1. The dust and noise monitoring station proposed
in the EM&A Manual (i.e. Ko Fai House, Kwun Fai
Court with ID: M-A6/
M-N6) 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 coordinates of SKH Tsoi Kung Po
Secondary School can be represented as follow:
Latitude: 22.314719, Longitude: 114.180694
(HK80 Geographical Coordinates)
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 |
Portable
direct reading dust meter (1-hour TSP) |
Sibata |
Model
LD-3B |
647594 |
Monitoring Methodology for HVS
·
Sufficient support is provided to
secure the samplers against gusty wind.
·
No two samplers are placed less than 2
meters apart.
·
The distance between the sampler and
an obstacle, such as buildings, is at least twice the height that the obstacle
protrudes above the sampler.
·
A minimum of 2 meters of separation
from walls, parapets and penthouses is required for rooftop samples.
·
A minimum of 2 meters separation from
any supporting structure, measured horizontally is required.
·
No furnaces or incineration flues are
nearby.
·
Airflow around the samplers is
unrestricted.
·
The samplers are more than 20 meters
from the drip line.
·
Any wire fence and gate, to protect
the sampler, should not cause any obstruction during monitoring.
·
Permission must be obtained to set up
the samplers and to obtain access to the monitoring stations.
·
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 Methodology 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 |
4358443 |
Sound
Level Meter |
Casella |
CEL-63X |
4181568 |
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: continuous 5 minutes interval
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 |
36 |
29 – 42 |
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 |
29 |
19 – 39 |
153 |
260 |
Table 3.3 Summary of Construction Noise Monitoring Results in
the Reporting Period
Station ID |
Range, dB(A), Leq (30 mins) |
Action Level |
Limit Level dB(A), Leq
(30 mins) |
M-N3 |
66.5 – 68.2 |
When one documented compliant is received |
For Schools: 70dB(A) during normal teaching period and 65 dB(A) during examination periods |
Note: Free field noise levels were adjusted
with a correlation of +3 dB(A).
Table 4.1 Observations
and Recommendation of Site Inspection in the Reporting Period
Environmental
Aspect |
Date |
Observations and
Recommendations |
Follow-up Actions |
Air Quality |
24 Sep 2019 |
The Contractor was reminded to provide clear Non-road Mobile Machinery (NRMM) labels for the excavator and machine. |
The item was rectified by the Contractor on 30 Sep 2019. |
30 Sep 2019 |
Three sides and top shelter should be provided for cement mixing area. Regular watering of site area should be exercised. |
The item will be followed up in next reporting period. |
|
Noise |
Nil |
Nil |
Nil |
Water Quality |
30 Sep 2019 |
Sandbags along the edge of the channel near drill rig SD-40 should be provided. |
The item will be followed up in next reporting period. |
Waste Management |
24 Sep 2019 |
The Contractor was reminded to provide a drip tray for the drill machine. |
The item was rectified by the Contractor on 30 Sep 2019. |
Landscape and Visual |
Nil |
Nil |
Nil |
Permit/ Licenses |
24 Sep 2019 |
EP shall be displayed at the site entrance. |
The item was rectified by the Contractor on 30 Sep 2019. |
Table 6.1 Status of
Required Submission under Environmental Permit
EP Condition |
Submission |
Submission Date |
2.8 |
Landscape
Mitigation Plan of the Project |
27 September
2019 |
2.9 |
Construction Noise Mitigation Measure Plan |
27 September 2019 |
·
Pre-treatment for diaphragm wall;
·
Pre-drilling for ventilation building
foundation.
·
Mitigation measures in form of regular
watering under a good site practice should be adopted;
·
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;
·
Bulk stock of cement, dry pulverised
fuel ash (PFA) or works of grout mixing should be covered entirely by
impervious sheeting or placed in an area sheltered on the top and the 3 sides;
·
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;
·
All C&D materials generated should
be transported and stored at temporary storage area. Suitable materials should
be sorted for reuse on-site;
·
Wastewater to be treated by wastewater
treatment facilities before discharge;
·
Provision of drip trays for equipment
likely cause spillage of chemical / fuel, and provide routine maintenance;
·
Conditions in the Environmental Permit
and Discharge License should be followed;
·
All recommended mitigation measures
specified in the approved EIA Report and EM&A Manual shall be implemented.
Air Quality Impact
·
The Contractor was reminded to
provide clear NRMM labels for the excavator and machine.
·
Three sides and top shelter
should be provided for cement mixing area.
·
Regular watering of site area
should be exercised.
Construction Noise Impact
·
No specific observation was identified
in the reporting month.
Water Quality Impact
·
Sandbags along the edge of the
channel near drill rig SD-40 should be provided.
Waste Management
·
The Contractor was reminded to
provide a drip tray for the drill machine.
Landscape and Visual Impact
·
No specific observation was
identified in the reporting month.
Permit/ Licenses
·
EP shall be displayed at the
site entrance.