Contents
Page
EXECUTIVE SUMMARY iii
1 INTRODUCTION AND PROJECT INFORMATION 12
1.1 Background............................................................................................................ 12
1.2 Construction
Programme and Activities................................................................ 12
1.3 Project
Organisation................................................................................................ 2
1.4 Purpose of the
Report............................................................................................ 32
2 SUMMARY OF EM&A REQUIREMENTS 32
2.1 Environmental Impact Hypothesis under Monitoring............................................ 32
2.2 Monitoring
Requirements....................................................................................... 32
2.3 Environmental
Mitigation Measures...................................................................... 42
3 SUMMARY OF EM&A MONITORING DATA 52
3.1 Monitoring Data...................................................................................................... 52
3.2 Summary of
Monitoring Exceedances.................................................................. 52
4 ENVIRONMENTAL NON-CONFORMANCE 62
4.1 Summary of
Environmental Non-Compliance...................................................... 62
4.2 Summary of
Environmental Complaints............................................................... 72
4.3 Summary of
Environmental Summon and Successful Prosecutions.................. 72
5 REVIEW OF THE VALIDITY OF EIA
PREDICTIONS 72
6 REVIEW OF EM&A PROGRAMME 72
7 CONCLUSIONS 72
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 Data 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 20154 and October 20165.
The impact stage
EM&A programme for the Project includes air quality, noise and water
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, only 51
exceedance events
waeres recorded and the exceedances wasere concluded not related to the
Project. No necessary remedial
actions have been taken.
No environmental non-compliance was noted. NoOne environmental complaint, which was concluded as 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. Due to the loading requirement
of a fresh water main under the box culvert, installation of the base slab at
Box Culvert ID4 has been
scheduled to be commenced in December 2016.
has to be scheduled in November 2015 after the
utilities diversions were completed, and therefore the construction works were temporary
suspended.
The
construction works at the box culvert ID4 are temporarily suspended until the
utilities diversion works complete. The
4-week post construction water quality monitoring will be conducted after the
installation of the base slab finishes, hence the completion of the box culvert
works. As
such, impact monitoring for water quality is anticipated to be resumed in
December 2016 during the course of remaining box culvert works. As such, impact
monitoring for water quality is anticipated to be resumed in November 2015
during the course of remaining box culvert works.
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 current VEP (EP-324/2008/D) was granted on 27
August 2015.
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
Decking Construction for Bridge E;
¡P
Demolition of Existing Vehicular Bridge;
¡P
E & M Work for New Valve Control &
Telemetry House;
¡P
Erection of Temporary support for demolition of
J-bridge;
¡P
Filling Works at Tong Hang East;
¡P
Footbridge Construction;
¡P
FRP Lining on Existing Water Main;
¡P
Installation of Stone Cladding;
¡P
Noise Barrier Construction;
¡P
Pier / Pier Table Construction;
¡P
Pile Cap Works;
¡P
Piling Works;
¡P
Piling Works for Viaduct ;
¡P
Piling Works for Noise Barrier;
¡P
Portal Beam Construction;
¡P
Pre-drilling;
¡P
Pre-drilling works and Piling Works for Noise
Barrier;
¡P
Pre-drilling Works and Piling Works for
Viaduct ;
¡P
Road Works at Fanling
Highway;
¡P
Retaining Wall Construction ;
¡P
Road Works;
¡P
Sewer Works ;
¡P
Slope Works;
¡P
Socket H-pile Installation ;
¡P
Steel Posts and Panels Installation of Noise
Barrier;
¡P
Storm Drains Laying;
¡P
Tree Felling Works;
¡P
Utilities Duct Laying;
¡P
Viaduct Segment Erection;
¡P
Water Main Connection Works;
¡P
Water Main Laying; and
¡P
Waterworks.
¡P
Tree felling works;
¡P
Abutment construction for Bridge E;
¡P
Erection of temporary support at DSD nullah;
¡P
Piling works;
¡P
Piling works for Bridge E;
¡P
Utilities duct laying;
¡P
Socket H-pile installation;
¡P
Road works at Fanling Highway;
¡P
Traffic diversion for Fanling Highway;
¡P
Retaining structure construction;
¡P
Construction of valve control Telemetry House;
¡P
Pre-drilling works;
¡P
Pile cap works;
¡P
Pier / Pier table construction;
¡P
Noise barrier construction;
¡P
Sewer pipes laying;
¡P
Water pipes laying;
¡P
Storm drains laying;
¡P
Lagging wall and capping beam for bored pile wall;
¡P
Filling Works at Tong Hang East;
¡P
Catch fence erection;
¡P
Cable detection and trial trenches;
¡P
Pile cap construction for Bridge E;
¡P
ADMS installation;
¡P
E & M work for new valve control &
Telemetry House;
¡P
Demolition of central divider at Fanling Highway;
¡P
Viaduct segment erection;
¡P
Socket H-pile load test;
¡P
Sewer works at TWSRW;
¡P
Diversion of DN600;
¡P
Erection of temporary support at DSD nullah for
Bridge E;
¡P
Box culvert inlet structure;
¡P
Portal beam construction;
¡P
Decking construction for Bridge E;
¡P
Construction of temporary steel ramp for Kiu Tau
Footbridge; and
¡P
Slope 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 1.1Table 1.1.
Table 1.11 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.
|
2638
6181 |
|
||
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 20152014 and October 20162015.
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
For water
quality, it is also anticipated that with proper protection measures being
implemented, the water quality during construction phase would be locally
confined and controllable.
2.1.4
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 and water quality have been monitored. The specific parameters, monitoring
frequency and the respective Action and Limit Levels are given in Table
2.1Table 2.1
and the location of the monitoring station is shown in the Figure 2.
Table
2.11 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 |
Water
Quality |
||||
Depth |
|
-- |
-- |
Three
occasions per week |
Temperature |
¢XC |
-- |
-- |
Three
occasions per week |
Salinity |
ppt |
-- |
-- |
Three
occasions per week |
pH |
-- |
-- |
-- |
Three
occasions per week |
DO |
mg/L |
6.7 |
4mg/L
or 40% saturation at 15 degree Celsius |
Three
occasions per week |
DO Saturation |
% |
-- |
-- |
Three
occasions per week |
Turbidity |
NTU |
81.9NTU or 120%
of upstream control station¡¦s Tby of the same day |
91.9NTU
or 130% of upstream control station¡¦s Tby of the
same day |
Three
occasions per week |
SS |
mg/L |
42.6 mg/L or
120% of upstream control station¡¦s SS of the same day |
46.8
mg/L or 130% of upstream station¡¦s SS of the same day and specific sensitive
receiver water quality requirements |
Three
occasions per 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.
2.2.3
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. Due to the loading requirement of a
fresh water main under the box culvert, installation of the base slab at Box
Culvert ID4 has been scheduled to be commenced in December 2016. The 4-week post construction water
quality monitoring will be conducted after the installation of the base slab
finishes, hence the completion of the box culvert works. As such, impact monitoring for water
quality is anticipated to be resumed in December 2016 during the course of
remaining box culvert works.
1.1.1
The box
culvert works have been partially completed by the end of March 2014 except the
last construction activity, which is the installation of a base slab at Box
Culvert ID4. Due to the loading
requirement of a fresh water main under the box culvert, installation of the
base slab at Box Culvert ID4 has to
be scheduled in November 2015 after the utilities diversions were completed, and
therefore the construction works are
temporarily suspended. The 4-week post construction water quality
monitoring will be conducted after the installation of the base slab finishes,
hence the completion of the box culvert works. As such, impact monitoring for water
quality is anticipated to be resumed in November
2015 during the course of remaining box culvert
works.
2.3.1
Environmental mitigation measures have been
recommended in the EM&A Manual and is 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 Mmeteorological datacondition 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
3.1Table 3.1.
Table 3.11 Summary
of Monitoring Data in the Reporting Period
Monitoring
Location |
Minimum |
Maximum |
Average |
Air
Quality |
|||
1-hour Total
Suspended Particulate |
|||
SR77 |
58.9mg/m3 |
279.3mg/m3 |
138.9mg/m3 |
24-hour Total
Suspended Particulate |
|||
SR77 |
22.8mg/m3 |
172.3mg/m3 |
91.9mg/m3 |
Construction
Noise |
|||
SR77 |
59.5dB(A) |
76.5dB(A) |
64.5dB(A) |
Water Quality |
|||
DO |
|||
I5 |
4.3mg/L |
5.4mg/L |
4.9mg/L |
C3a |
5.2mg/L |
7.6mg/L |
6.4mg/L |
C3b |
8.6mg/L |
9.2mg/L |
8.9mg/L |
Turbidity |
|||
I5 |
4.9NTU |
17.7NTU |
11.3NTU |
C3a |
4.1NTU |
11.1NTU |
7.6NTU |
C3b |
4.8NTU |
46.9NTU |
25.9NTU |
SS |
|||
I5 |
3.2mg/L |
3.7mg/L |
3.4mg/L |
C3a |
10.0mg/L |
19.0mg/L |
14.5mg/L |
C3b |
5.1mg/L |
27.5mg/L |
16.3mg/L |
3.2.1
The number of exceedance events recorded in the reporting period is
summarized in Table 3.2Table 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
3.22 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 |
1 |
0 |
|
Water Quality |
|||
DO |
Action Level |
2 |
0 |
Limit Level |
0 |
0 |
|
Turbidity |
Action Level |
0 |
0 |
Limit Level |
1 |
0 |
|
SS |
Action Level |
0 |
0 |
Limit Level |
0 |
0 |
3.2.3
The
Contractor has been reminded to strengthen the mitigation measures including:
¡P
Silt removal facilities, channels and manholes
should be well inspected and maintained regularly;
¡P
All plant and equipment should be well maintained
and in good operating condition to avoid black smoke emission;
¡P
Water treatment facilities should be properly
maintained and avoid untreated water entering storm drain;
¡P
Proper drainage channels/bunds should be provided
at the site boundaries to collect/intercept the surface run-off from works
areas;
¡P
Water spraying or covering of tarpaulin should be
properly implemented whenever necessary for the unpaved roads, access roads and
construction areas;
¡P
All vehicles should be washed to remove any dusty
materials before leaving the construction site;
¡P
Vessels and equipment operating should be checked
regularly and properly maintained;
¡P
Secondary containment, like drip trays and/or bundings, should be provided for all chemical containers to
retain any oil/chemical waste leakage within the construction site;
¡P
Chemical waste should be stored, handled and
disposed of properly; and
¡P
On site segregation should be implemented as far as
practicable for reuse and recycle.
¡P
Water spraying or covering of tarpaulin should be
properly implemented whenever necessary for the unpaved roads, access roads
construction areas;
¡P
All vehicles should be washed to remove any dusty
materials before leaving the construction site;
¡P
Wheel washing facilities should be properly
maintained to ensure proper functioning;
¡P
All types of wastes, both on land floating in the
river stream, should be collected sorted properly, also be disposed timely
properly. Refuse collection bins
should be labelled properly;
¡P
Provide proper chemical storage and chemical waste
management;
¡P
Water treatment facilities should be properly
maintained avoid untreated water entering storm drain;
¡P
Secondary containment should be provided for all
powered mechanical equipment within the construction site;
¡P
A spill response procedure shall be in place
absorption material available for minor spillages;
¡P
Good housekeeping should be maintained general
refuse should be removed regularly;
¡P
Plant equipment should be properly maintained to
avoid emitting black smoke;
¡P
Proper drainage channels/bunds should be provided
at the site boundaries to collect/intercept the surface run-off from works
areas
¡P
Vessels and equipment operating should be checked
regularly properly maintained;
¡P
Secondary containment, like drip trays/or bundings,
should be provided for all chemical containers to retain any oil/chemical waste
leakage within the construction site; and
¡P
Chemical waste should be stored, handled disposed
of properly.
4.1.1
No environmental
non-compliance was recorded in the reporting period.
4.2.1
NoOne (1)
environmental complaint was received in the reporting period. period regarding water quality of Ng Tung River. 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,
noise and water quality, environmental impact would be locally confined and
controllable. During the reporting
period, 5only 1
exceedances wereas recorded and the exceedances wereas concluded not related to the
Project. Hence, it is considered
that the EIA predictions is 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. Due to the loading requirement of a
fresh water main under the box culvert, installation of the base slab at Box
Culvert ID4 has been scheduled to be commenced in December 2016. The 4-week post construction water
quality monitoring will be conducted after the installation of the base slab
finishes, hence the completion of the box culvert works. As such, impact monitoring for water
quality is anticipated to be resumed in December 2016 during the course of
remaining box culvert works.
1.1.1
The box culvert works have been
partially completed by the end of March 2014 except the last construction
activity, which is the installation of a base slab at Box Culvert ID4. Due to the loading requirement of a fresh
water main under the box culvert, installation of the base slab at Box Culvert
ID4 has to be scheduled in November 2015 after the
utilities diversions were completed, and therefore the construction works were
temporarily suspended. The 4-week post construction water quality
monitoring will be conducted after the installation of the base slab finishes,
hence the completion of the box culvert works. As such, impact monitoring for water
quality is anticipated to be resumed in November 2015 during the course of
remaining box culvert works.
7.1.1
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.
7.1.2
In
the reporting period, 51
exceedance events have has been recorded and the exceedances were was
concluded not related to the Project.
No necessary remedial actions have been taken.
7.1.3
No
environmental non-compliances were noted. One environmental complaint, which
was concluded as unlikely due to the construction works of this Project after
investigations, was received. No environmental related prosecution or notification of summons were 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. Due to the loading requirement of a
fresh water main under the box culvert, installation of the base slab at Box
Culvert ID4 has been scheduled to be commenced in December 2016. The 4-week post construction water
quality monitoring will be conducted after the installation of the base slab
finishes, hence the completion of the box culvert works. As such, impact monitoring for water
quality is anticipated to be resumed in December 2016 during the course of
remaining box culvert works. 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. Due to the loading requirement
of a fresh water main under the box culvert, installation of the base slab at
Box Culvert ID4 has to
be scheduled in November 2015 after the utilities diversions were completed,
and therefore the construction works are temporarily suspended. The 4-week
post construction water quality monitoring will be conducted after the
installation of the base slab finishes, hence the completion of the box culvert
works. As such, impact monitoring
for water quality was not
necessary in the reporting period due to temporary suspension of the
construction works and is
anticipated to be resumed in November 2015 during the course of remaining box
culvert works.