Contents
Page
EXECUTIVE SUMMARY i
1 INTRODUCTION AND PROJECT INFORMATION 1
1.1 Background.............................................................................................................. 1
1.2 Construction
Programme and Activities.................................................................. 1
1.3 Project
Organisation............................................................................................ 232
1.4 Purpose of the
Report............................................................................................ 23
2 SUMMARY OF EM&A REQUIREMENTS 3
2.1 Environmental Impact Hypothesis under Monitoring.............................................. 3
2.2 Monitoring
Requirements..................................................................................... 343
2.3 Environmental
Mitigation Measures.................................................................... 344
3 SUMMARY OF EM&A MONITORING DATA 35
3.1 Monitoring Data...................................................................................................... 35
3.2 Summary of
Monitoring Exceedances.................................................................. 45
4 ENVIRONMENTAL NON-CONFORMANCE 576
4.1 Summary of
Environmental Non-Compliance.................................................... 576
4.2 Summary of
Environmental Complaints............................................................... 57
4.3 Summary of
Environmental Summon and Successful Prosecutions.................. 57
5 REVIEW OF THE VALIDITY OF EIA
PREDICTIONS 57
6 REVIEW OF EM&A PROGRAMME 57
7 CONCLUSIONS 67
Table 1.1 Contact
Information of Key Personnel
Table 2.1 Monitoring
Parameter
Table 3.1 Summary
of Monitoring Data in the Reporting Period
Table 3.2 Summary
of Exceedance Events in the Reporting Period
List of Figures
Figure 2 Environmental
Monitoring Locations
List of Appendices
Appendix A Construction
Programme
Appendix B Project Organization Structure
Appendix C Summary of Event and Action Plan
Appendix D Implementation Schedule of Environmental
Mitigation Measures (EMIS)
Appendix E Summary of Meteorological Condition
Extracted from Hong Kong Observatory
Appendix F Environmental Monitoring Data for Air,
Noise and Water Quality
Appendix G Statistics on Complaints, Notifications
of Summons and Successful Prosecutions
This report documents the findings of EM&A works conducted during
the period between November 2017 and October 2018.
The impact stage EM&A programme for the Project includes air quality
and, noise quality monitoring.
The EM&A programme was carried out by the
ET in accordance with the EM&A Manual requirements. It is concluded from the environmental
monitoring and audit works that adequate environmental mitigation measures have
been implemented by the civil works contractors where appropriate in the
reporting period.
In the reporting period, 1 exceedance event was
recorded and the exceedances
was concluded not related to the Project.
No necessary remedial actions have been taken.
No environmental non-compliance was noted. One environmental complaint was
received,.
which was
concluded that it was
unlikely due to the construction works of this Project after
investigations, was received. No environmental related prosecution or
notification of summons was received in the reporting period.
The box culvert works have been partially completed by the end of March
2014 except the last construction activity, i.e. installation of a base slab at
Box Culvert ID4. The installation of the base slab at Box Culvert ID4 was
commenced in December 2016 and has been completed in March 2017. The 4-week
post-construction water quality monitoring at I5 was completed in the end of April
2017.
1.1.1
The
Project is a Designated Project under the Environmental Impact Assessment
Ordinance (EIAO) (Cap. 499). An
Environmental Impact Assessment (EIA) Report together with an Environmental
Monitoring and Audit (EM&A) Manual were approved on 14 July 2000 (Register
Number: EIA-043/2000). The Project
is governed by an Environmental Permit (EP) (EP-324/2008) which was granted on
23 December 2008. A variation of EP
(VEP) was applied and the VEP (EP-324/2008/A) was subsequently granted on 31
January 2012. An additional VEP has
been applied on 24 February 2014 and the VEP (EP-324/2008/B) was subsequently
granted on 17 March 2014. Furthermore, an additional VEP has been applied on 9 March 2015 and the VEP
(EP-324/2008/C) was subsequently granted on 27 March 2015. The previous VEP
(EP-324/2008/D) was granted on 27 August 2015. The current VEP (EP-324/2008/E)
was granted on 26 January 2017.
1.1.2
Chun
Wo Construction &
Engineering Co Ltd (Chun Wo) was commissioned by the
Civil Engineering and Development Department (CEDD) as the Civil Contractor for
the Entrusted Portion of Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.
Meinhardt Infrastructure & Environment Ltd (MIEL) has been appointed
by Chun Wo as the
Environmental Team (ET) to fulfill the corresponding
EM&A requirements pursuant to Environmental Permit No. EP-324/2008/D in
accordance with the Updated EM&A Manual (dated October 2013) for Widening
of Tolo Highway/Fanling
Highway between Island House Interchange and Fanling
Stage 2. The EM&A programme
commenced in 5 November 2013.
1.1.3
Figure 1 shows the works areas for the
Entrusted Portion of Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.
1.2.1
The
master construction programme for the entire construction period is presented
in Appendix A. The major
construction activities undertaken in the reporting period are summarized
below:
¡P
Cable Detection and Trial
Trenches;
¡P
Remaining Works on New Kiu Tau Footbridge;
¡P
Noise Barrier Construction;
¡P
Roadworks and
Pavement Works;
¡P
Viaduct Segment Erection;
¡P
Water
Main Laying Works (on Grade and on bridge deck);
¡P
Installation of Noise Barrier
Steel Column & Panel and sign gantry (on Grade and on bridge deck);
¡P
Parapet Installation on Bridge
Deck;
¡P
Drainage Work;
¡P
Mini-pile Installation;
¡P
Construction of Profile
Barrier & Planter Wall on Bridge Deck;
¡P
Stressing of External Tendon;
¡P
Construction of Retaining Wall
Behind Abutment and backfill;
¡P
Waterproofing works on Bridge
deck;
¡P
Stitching works for longitudinal
stitch of viaduct;
¡P
Demolition
of Existing Kiu Tau Vehicular Bridge;
¡P
Bitumen
paving on bridge deck;
¡P
Installation
of deck cell light inside the bridge deck;
¡P
Installation
of movement joint on the bridge; and
¡P
Landscaping
works.
1.3.1
The
project organization structure is shown in Appendix B. The key personnel contact names and
numbers for the Project, together with the general enquiry hotline, are
summarised in Table 1.1.
Table 1.1 Contact Information of Key Personnel
Party |
Role |
Position |
Name |
Tele-phone |
Fax |
AECOM |
Engineer¡¦s
Representative |
Senior
Resident Engineer |
Mr. Alan Lee |
2171 3303 |
2171 3498 |
Resident Engineer (Environmental) |
Mr. |
2171 3350 |
|||
Mott MacDonald |
Independent Environmental Checker (IEC) |
IEC |
Mr. Steven Tang |
2828 5920 |
2827 1823 |
Chun Wo |
Contractor |
Site Agent |
Mr. Daniel Ho |
2638 6144 |
2638 7077 |
Environmental Officer |
Mr. Yang Ran |
2638 6147 |
|||
Environmental Supervisor |
Mr. Franki Leung |
2638 7005 |
|||
Meinhardt |
Environmental Team (ET) |
ET Leader |
Mr. Fredrick Leong |
2859 1739 |
2540 1580 |
Enquiry Hotline |
General Enquiry |
-- |
Ms Helena Mak |
6355 1731 |
-- |
1.4.1
This
is the Annual EM&A Review Report which summaries
the impact monitoring results and audit findings for the Project during the
reporting period between November 2017 and October 2018.
2.1.1
The
EIA Report concluded that with proper mitigation measures implemented, fugitive
dust emission during construction phase would be controlled and will not exceed
the acceptable criteria.
2.1.2
For
construction noise, exceedances were predicted only
at 2 schools (SR41 Wong Shiu Chi Middle School and
SR45 HK Teacher¡¦s Association Secondary School) but they are out of the scope
of this EM&A Programme. Hence
the EIA did not anticipate any noise exceedances
during construction phase within the scope of this EM&A Programme.
2.1.3
The
above criteria have been tested under this EM&A Programme during the
reporting period.
2.2.1
In
accordance with the Updated EM&A Manual, environmental parameters including
air quality, noise have been monitored.
The specific parameters, monitoring frequency and the respective Action
and Limit Levels are given in Table 2.1 and the location of the monitoring
station is shown in the Figure 2.
Table 2.1 Monitoring Parameter
Parameter |
Unit |
Action
Level |
Limit Level |
Frequency |
Air Quality |
||||
1-hour
TSP |
mg/m3 |
292.7 |
500 |
Three times every 6 days |
24-hour
TSP |
mg/m3 |
170.3 |
260 |
Once every 6 days |
Construction Noise |
||||
Leq
30min |
dB(A) |
When
one documented valid complaint is received |
75 |
Once every Week |
2.2.2
The
Event and Action Plan for the occurrence of non-compliance of the criteria of
the monitoring parameters is annexed in Appendix C.
2.3.1
Environmental
mitigation measures have been recommended in the EM&A Manual and are given
in Appendix D. The implementation
status for the reporting period is also given in the Appendix.
3.1.1
Monitoring has been conducted in accordance with the
specification in the EM&A Manual in the reporting period. Summary of meteorological
condition for the reporting period have been extracted from Hong Kong
Observatory and
are given in Appendix E. Monitoring
data with graphical presentation for the reporting period have been given in Appendix
F. A summary on the monitoring
results has also been given in Table 3.1.
Table 3.1 Summary of Monitoring Data in the Reporting Period
Monitoring Location |
Minimum |
Maximum |
Average |
Air Quality |
|||
1-hour Total
Suspended Particulate |
|||
SR77 |
68.1mg/m3 |
247.0mg/m3 |
132.8mg/m3 |
24-hour Total Suspended
Particulate |
|||
SR77 |
12.1mg/m3 |
202.7mg/m3 |
66.7mg/m3 |
Construction Noise |
|||
SR77 |
62.0dB(A) |
74.5dB(A) |
71.2dB(A) |
3.2.1
The
number of exceedance events recorded in the reporting
period is summarized in Table 3.2.
3.2.2
Investigation
for the exceedance event in the reporting period has been
completed and the exceedance was concluded not
related to the Project. No necessary
remedial actions have been taken. The
respective investigation report has been presented in the respective Monthly
EM&A Report.
Table 3.2 Summary of Exceedance Events in the Reporting Period
Parameter |
|
Number of Exceedance
Events |
Number of Project Related Exceedance Events |
Air Quality |
|||
1-hour Total
Suspended Particulates |
Action Level |
0 |
0 |
Limit
Level |
0 |
0 |
|
24-hour Total
Suspended Particulates |
Action Level |
1 |
0 |
Limit
Level |
0 |
0 |
|
Construction Noise |
|||
Leq 30min |
Action Level |
0 |
0 |
Limit
Level |
0 |
0 |
3.2.3
The
Contractor has been reminded to strengthen the mitigation measures including:
¡P
Watering
within site and vehicle washing facilities shall be enhanced.
¡P
Stockpiles
and/or excavated dusty materials shall be covered coverage with impervious
sheeting and/or sufficient water spraying for dust suppression.
¡P
Colour
NRMM label shall be provided for all Non Road Mobile Machineries.
¡P
Mud
and debris shall be removed to prevent potential muddy water flow to public
road.
¡P
Housekeeping
shall be enhanced and refuse shall be collected regularly.P
¡P
Secondary
containment and/or drip tray shall be provided for chemicals to prevent any
potential leakage.
¡P
General
housekeeping shall be enhanced throughout the construction site.
Water Quality
¡P
Drainage
facilities shall be well maintained and inspected regularly.
¡P
Preventive
measure shall be enhanced to prevent soil/ rock from engineering the WSD area.
¡P
Trapped
Water shall be pumped or removed to avoid site runoff overflow.
¡P
Enhancement
to water pumping pipe at NB 67 shall be adopted.
¡P
Wastewater
shall be removed and treated properly prior to discharge in accordance with
WPCO License.
4.1.1
No
environmental non-compliance was recorded in the reporting period.
4.2.1
One
(1) environmental complaint was received in the reporting period regarding air
quality nearby Kau
Lung Hang and Hong Lok Yuen was received on 28 Dec
2017. Investigation has been conducted and the
complaint was considered unlikely
due to the construction works of this Project.
4.3.1
No
environmental related prosecution or notification of summons was received in
the reporting period. The cumulative
statistics are provided in is provided in Appendix G.
5.1.1
The
EIA report predicted that with proper implementation of the mitigation measures
for air and noise, environmental impact would be locally confined and
controllable. During the reporting
period, One (1) exceedances
was recorded and the exceedances
w concluded not related to the Project.
Hence, it is considered that the EIA predictions are valid for the reporting
period.
6.1.1
The
EM&A programme was considered successfully and adequately conducted during
the course of the reporting period.
6.1.2
The box culvert works have
been partially completed by the end of March 2014 except the last construction
activity, i.e. installation of a base slab at Box Culvert ID4. The box culvert works have been
completed in the end of March 2017. The 4-week post-construction water quality
monitoring at I5 was completed in the end of April 2017 in the same manner as
the impact monitoring..
7.1.1
The
EM&A programme were carried out by the ET in accordance with the EM&A
Manual requirements. It is concluded from the environmental monitoring and
audit works that adequate environmental mitigation measures have been
implemented by the civil works contractors where appropriate in the reporting
period.
7.1.2
In
the reporting period, 1 exceedance event has been recorded and the exceedances
was concluded not related to the Project.
No necessary remedial actions have been taken.
7.1.3
No
environmental non-compliances were noted. No environmental complaint was
received in the reporting period.
7.1.4
The
box culvert works have been partially completed by the end of March 2014 except
the last construction activity, i.e. installation of a base slab at Box Culvert
ID4. The box culvert works had been completed in March 2017. The 4-week
post-construction water quality monitoring at I5 was completed in the end of
April 2017.