TABLE OF CONTENTS
Page
EXECUTIVE SUMMARY 2
1 Introduction 4
1.1 Project Organization and Contacts of Key Management 4
1.2 Programme 4
1.3 Summary of Construction Works 4
2 Environmental Monitoring
and Audit Requirements 5
2.1 Monitoring Parameters 5
2.2 Monitoring Locations 5
2.3 Environmental Quality Performance Limits (Action/Limit
Levels) 5
2.4 Environmental Mitigation Measures 5
3 air quality monitoring 6
4 Noise MONITORING 6
5 Advice on the Solid and
Liquid Waste Management Status 7
6 Summary of Exceedances of
the Environmental Quality Performance Limit 7
7 Summary of Complaints,
Notifications of Summons and Successful Prosecutions 8
8 REVIEW of THE VALIDITY OF
THE EIA/ERR Predictions 8
9 Review of the effectivness
and efficiency of mitigation measures 8
10 Review of success of
EM&A Programme 8
11 Comments, recommendations and
Conclusions 9
11.1 Comments 9
11.2 Recommendations 10
11.3 Conclusions 10
List of Tables
Table 1.1 Contact Information of Key Personnel
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 the Number of Exceedances for 1-hr &
24-hr TSP Monitoring
Table 4.1 Summary of Construction Noise Monitoring Results in
the Reporting Period
Table 4.2 Summary of the Number of Monitoring Exceedances for
Construction Noise
Table 5.1 Summary of
Waste Flow Table
Figures
Figure 1.1 General
Project Layout Plan
Figure 1.2a-b Locations
of Monitoring Station
List of
Appendices
Appendix A Project
Organization Structure
Appendix B Construction
Programme
Appendix C Implementation
Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary of Action
and Limit Levels
Appendix E Impact
Air Quality Monitoring Results and their Graphical Presentation
Appendix F Meteorological
Data
Appendix G Impact
Daytime Construction Noise Monitoring Results and their Graphical Presentation
Appendix H Statistics
on Complaints, Notifications of Summons and Successful Prosecutions
The proposed
widening of Tolo Highway and Fanling Highway between Island House Interchange
and Fanling (the Project) is a Designated Project under the Environmental
Impact Assessment Ordinance (Cap. 499) (EIAO). An Environmental Impact
Assessment (EIA) Report (the approved EIA Report) together with an
Environmental Monitoring and Audit (EM&A) Manual (the approved EM&A
Manual) were completed and approved under the EIAO on 14 July 2000 (Register
Number: EIA-043/2000).
The objective of the Project
Ą°Widening of Tolo Highway / Fanling Highway between Island House Interchange
and FanlingĄą is to widen Tolo Highway and Fanling Highway to dual 4-lane
carriageway in order to alleviate the current traffic congestion problems and
to cope with the increasing transport demands to and from the urban areas and
also cross boundary traffic.
The Project is a
designated project and governed by an Environmental Permit (EP-324/2008) issued
by the EPD on 23 December 2008. Subsequently,
the
EPD issued Variation of Environmental Permits of EP-324/2008/A, EP-324/2008/B and EP-324/2008/C on 31 January
2012, 17 March 2014 and 27
March 2015 respectively. The
current valid VEP was applied on 19 August 2015 and the VEP (EP-324/2008/D) was
subsequently granted on 27 August 2015.
The
construction works for this Project are delivered in 2 stages i.e. Stage 1
(between Island House Interchange and Tai Hang) and Stage 2 (between Tai Hang
and Wo Hop Shek Interchange). Stage
2 would be implemented under two works contracts. Contract No. HY2012/06 Ą°Widening of
Fanling Highway ¨C Tai Hang to Wo Hop Shek InterchangeĄą and the entrusted portion
to CEDD under Contract No. CV/2012/09 ĄąLiantang/Heung Yuen Wai Boundary Control
Point Site Formation and Infrastructure Works ¨C Contract 3Ąą. This report focuses on Contract No. HY2012/06 Ą°Widening of Fanling Highway ¨C Tai Hang to
Wo Hop Shek InterchangeĄą in Stage
2 of the Project only.
Pursuant to
the EP (EP-324/2008/D) Condition 2.7, the Capture Survey Trip Report
for Ma Wat River Northern Meander (Version 2) for the Project was submitted on
24 December 2013 by the Environmental Team (ET) and verified by the Independent
Environmental Checker (IEC) on 6 January 2014.
The construction phase of the Contract under the EP and the Environmental
Monitoring and Audit (EM&A) programme of the contract commenced on 21 November
2013. The impact environmental monitoring and audit includes air quality and
noise monitoring.
This
report documents the findings of EM&A works conducted in the period between
1 November 2015 and 31 October 2016. As informed by the Contractor,
construction activities in the reporting period were:
-
Backfilling;
-
Bridge
construcyion;
-
Drainage;
-
Excavation;
-
Footbridge
demolition;
-
Ground investigation;
-
House
construction.
-
Noise
barrier;
-
Retaining
wall construction;
-
Site clearance;
-
Temporary
bridge construction;
-
Piling
works;
-
Pipe
laying;
Reporting Change
There was no reporting change required in
the reporting period.
Breaches of Action and Limit
Levels for Air Quality
No exceedance
of Action and Limit Level was recorded for 1-hour and 24-hour TSP monitoring in
the reporting period.
Breaches of Action and Limit
Levels for Noise
No Action or Limit Level exceedance of construction
noise was recorded in the reporting period. No noise complaints related to 0700
¨C 1900 hours on normal weekdays was received and followed by the Environmental
Team in the reporting period.
Complaint, Notification of
Summons and Successful Prosecution
No complaint, notification of summons or successful prosecution was
received in the reporting period.
1.1.1
The project organization structure is shown in Appendix A. The key personnel
contact names and numbers are summarized in Table 1.1.
Table 1.1 Contact
Information of Key Personnel
Party
|
Position
|
Name
|
Telephone
|
Fax
|
ER
(Hyder-Arup-Black & Veatch Joint
Venture)
|
Chief Resident Engineer
|
Edwin Chung
|
6115 0818
|
2638 0950
|
IEC
(Mott MacDonald Hong Kong Limited)
|
Independent Environmental Checker
|
Steven Tang
|
2828 5920
|
2827 1823
|
Contractor
(China State Construction Engineering
(Hong Kong) Limited)
|
Environmental Officer
|
Michael Tsang
|
9277 4956
|
2672 2501
|
C C Chow
|
9679 6315
|
2672 2501
|
ET
(AECOM Asia Company Limited)
|
ET Leader
|
Y W Fung
|
3922 9393
|
3922 9797
|
1.2.1
The Construction Programme is shown in Appendix B.
1.3.1
Details of the construction works carried out by the Contractor in this
reporting period are listed below:
-
Backfilling;
-
Bridge
construcyion;
-
Drainage;
-
Excavation;
-
Footbridge
demolition;
-
Ground investigation;
-
House
construction.
-
Noise
barrier;
-
Retaining
wall construction;
-
Site clearance;
-
Temporary
bridge construction;
-
Piling
works;
-
Pipe
laying;
1.3.2
The general layout plan of the Project site showing the contract areas
is shown in Figure 1.1.
1.3.3
The environmental mitigation measures implementation schedule are
presented in Appendix C.
2.1.1
The updated EM&A Manual has designated 1 air quality
monitoring station and 2 noise monitoring stations to monitor environmental
impacts on air quality and noise due to Stage 2 of the Project.
2.1.2
The updated EM&A Manual also requires environmental
site inspections for air quality, noise, water quality, chemical, waste
management, ecology and landscape and visual impacts.
2.2.1
For air quality monitoring, the monitoring station was set
up at Fanling Government Secondary School, in accordance with updated EM&A
Manual. The location is shown in Figure 1.2a.
2.2.2
For noise monitoring, the monitoring stations M2
and M3 were set up at West Tai Wo and Fanling Government Secondary School
respectively in accordance with updated EM&A Manual. Figure 1.2a-b shows
the locations of the monitoring stations.
2.3.1
The environmental quality performance limits (i.e.
Action/Limit Levels) of air quality monitoring were derived from the baseline
air quality monitoring results at the monitoring station (AM2); while the
environmental quality performance limits of noise monitoring were defined in
the EM&A Manual.
2.3.2
The environmental quality performance limits are given in
Appendix D.
2.4.1
Relevant environmental mitigation measures were stipulated
in the Particular Specification and EP for the Contractor to adopt. A list of
environmental mitigation measures and their implementation statuses are given
in Appendix C.
2.5
Environmental Impact
Hypotheses Tested
2.5.1
The EIA Report concluded that with proper mitigation
measures implemented, fugitive dust emission during the construction phase
would be controlled and will not exceed the acceptable criteria.
2.5.2
For construction noise, exceedances were
predicted only at 2 schools (SR41 Wong Shiu Chi Middle School and
SR45 HK TeacherĄ¯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 the construction phase within
the scope of this EM&A Programme.
2.5.3
The above criteria have been tested under this EM&A
Programme during the reporting period.
3.1.1
In accordance with the updated EM&A Manual, baseline
1-hour and 24-hour TSP levels at one air quality
monitoring station was established. Impact
1-hour TSP monitoring was conducted for at least three times every 6 days,
while impact 24-hour TSP monitoring was carried out for at least once every 6
days.
3.1.2
The weather was mostly sunny, occasionally fine, cloudy and
rainy days in the reporting period. Weather information including the wind
speed and wind direction is annexed in Appendix F. The information was obtained
from the Hong Kong Observatory.
3.1.3
The monitoring results for 1-hour TSP and 24-hour TSP monitoring
are summarized in Tables 3.1 and 3.2 respectively. Detailed impact air quality
monitoring results are presented in Appendix E.
Table 3.1 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
Location
|
Average (mg/m3)
|
Range (mg/m3)
|
Action Level (mg/m3)
|
Limit Level (mg/m3)
|
AM2
(Fanling
Government Secondary School)
|
73.7
|
60.3 ¨C 96.1
|
317.8
|
500
|
Table 3.2 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
Location
|
Average (mg/m3)
|
Range (mg/m3)
|
Action Level (mg/m3)
|
Limit Level (mg/m3)
|
AM2
(Fanling
Government Secondary School)
|
37.4
|
7.4 ¨C 141.5
|
200.7
|
260
|
3.1.4
The major dust sources in the reporting period included
construction activities from Stage 2 of the Project, as well as nearby traffic
emissions.
3.1.5
All 1-hour and 24-hour TSP results were below the Action
and Limit Level in the reporting period.
3.1.6
Detailed impact air quality monitoring results are
presented in Appendix E.
4.1.1
In
accordance
with the EM&A Manual, impact noise
monitoring was conducted for at least once per week during the construction phase of the Contract.
4.1.2
The monitoring results for construction noise are
summarized in Table 4.1 and the monitoring data are provided in Appendix G.
Table 4.1 Summary of Construction Noise Monitoring
Results in the Reporting Period
|
Average (dB(A))
Leq
(30 mins)
|
Range (dB(A))
Leq
(30 mins)
|
Limit Level (dB(A))
Leq
(30 mins)
|
M2*
|
69.5
|
66.8 ¨C 71.8
|
75
|
M3#
|
64.6
|
60.5 ¨C 69.8
|
65/70
|
*+3dB(A) Façade correction included
# Limit Level of 70dB(A) applies to education institutes while 65dB(A)
applies during school examination period.
4.1.3
The major noise sources during the noise monitoring
included nearby road traffic noise.
4.1.4
No Action or Limit Level exceedance of construction noise
was recorded in the reporting period. No noise complaints related to 0700 ¨C
1900 hours on normal weekdays was received and followed by the Environmental
Team in the reporting period.
4.1.5
The graphical plots of the trends of the monitoring results
are provided in Appendix G.
5.1.1
As advised by the Contractor, 27,116 m3 of inert C&D
material was generated in the reporting month (7,048 m3 disposed of
as public fill to Tuen Mun 38, 12,171 m3 of inert C&D materials
was reused on site, 7,897 m3 of inert C&D materials was reused
in other projects and 0 m3 was broken concrete). For C&D wastes,
865 m3 of general refuse was disposed of at NENT
landfill, 796 kg of paper/cardboard packaging, 5,045 kg of plastics and 21,346 kg of metals were collected by
recycling Contractors, and 0
kg of chemical
wastes was collected by licensed Contractors in the reporting period.
5.1.2
The actual amounts of different types of waste generated by
the activities of the Project in the reporting period are summarized in Table 5.1.
Table 5.1 Summary
of Waste Flow Table
Waste
Type
|
Actual
Amount
|
Disposal/Reuse
Locations
|
Inert C&D
materials disposed of as public fill
|
7,048 m3
|
Tuen Mun 38
|
Broken concrete
|
0 m3
|
Tuen Mun 38
|
C&D wastes
disposed as general refuse
|
865 m3
|
NENT Landfill
|
Paper/cardboard
packaging
|
796 kg
|
Recycling Contractors
|
Plastics
|
5,045 kg
|
Recycling Contractors
|
Metals
|
21,346 kg
|
Recycling Contractors
|
C&D materials
reused on site
|
12,171 m3
|
Site Area
|
C&D materials
reused in other projects
|
7,897 m3
|
Other projects
|
Chemical wastes
|
0kg
|
Licensed Contractors
|
6
Summary
of Exceedances of the Environmental Quality Performance Limit
6.1.1
All 1-hour and 24-hour TSP monitoring results complied with
the Action / Limit Levels in the reporting period.
6.1.2
No Action or Limit Level exceedance of construction noise was
recorded in the reporting period. No noise complains related to 0700 ¨C 1900
hours on normal weekdays was received and followed by the Environmental Team in
the reporting period.
7
Summary
of Complaints, Notifications of Summons and Successful Prosecutions
7.1.1
No complaint, notification of summons or successful
prosecution was received in the reporting period.
7.1.2
The statistics on complaints, notifications of summons and
successful prosecutions are summarized in Appendix H.
7.1.3
A 24-hour complaint hotline at 6628 8366 has been
established for the Project. The hotline number is displayed at the site
entrances, fencings and project signboards, as well as printed on publications
such as newsletters for the public.
8.1.1
All the air quality monitoring results in the reporting
period were below the Action and Limit Levels. The result was in line with the
Environmental Impact Assessment (EIA) and Environmental Review Report (ERR)
prediction that dust generation would be controlled and would not exceed the
acceptable criteria, with proper implementation of the recommended dust
mitigation measures.
8.1.2
All the noise monitoring results in the reporting period
were below the Action and Limit Levels. The result was in line with the Environmental
Impact Assessment (EIA) and Environmental Review Report (ERR) prediction that
with the implementation of noise mitigation measures, the construction noise
from the Project works will meet the stipulated criterion at the residential
NSRs and at a majority of the education institutions.
1.
9.1.1 The impact air
quality and noise monitoring programme ensured that any environmental impacts
to the receivers would be readily detected and timely actions could be taken to
rectify any non-compliance. The
environmental monitoring results indicated that the construction activities in
general were in compliance with the relevant environmental requirements and were
environmentally acceptable.
The weekly site inspections ensured that all the environmental
mitigation measures recommended in the EIA/ERR were effectively implemented.
Despite the minor deficiencies found during site audits, the Contractor has taken
appropriate actions to rectify deficiencies within a reasonable timeframe.
Therefore, the effectiveness and efficiency of the mitigation measures were
considered high in most of the time.
9.1.2
For all the parameters under monitoring as mentioned in Section
8, the measured levels were in line with the EIA and ERR predictions generally.
This indicates that the mitigation measures were effectively and efficiently implemented.
2.
10.1.1 The environmental
monitoring methodology was considered well established as the monitoring
results were found in line with the EIA predictions.
10.1.2 As effective follow-up
actions were promptly taken once exceedances were recorded, no further
exceedance occurred. The EM&A programme was considered successfully and
adequately conducted during the course of the reporting period.
11
Comments, recommendations
and Conclusions
11.1.1
According to the environmental
site inspections performed in the reporting period, the following comments
are made to the Contractor for precautionary and rectification purposes:
Air Quality Impact
11.1.2
The Contractor should dampen the road to reduce dust
generation.
11.1.3
The Contractor should cover the stockpile with impervious
sheeting properly to prevent dust generation.
11.1.4
The Contractor should provide and affix a valid NRMM label
for the mentioned roller and excavator properly.
Construction Noise Impact
11.1.5
The
Contractor should provide the valid NEL on the air compressor.
11.1.6
The
Contractor should provide proper wrapping to the breakerĄ¯s head as mitigating
measure.
11.1.7
The
Contractor should replace the NEL in order to show the information clearly.
Water Quality Impact
11.1.8
The Contractor should remove the stagnant water.
11.1.9
The Contractor should provide sufficient mitigation
measures to prevent deposited silt and grit from entering public drainage.
11.1.10
The Contractor should provide bunding to avoid waste water
to be carried to the public road.
11.1.11
The Contractor should provide waste water treatment and
mechanism to avoid waste water from entering the public pedestrian pathway.
11.1.12
The Contractor should clear the accumulated mud in wheel
washing basins regularly.
11.1.13
The Contractor should clean the sedimentation tank
regularly.
11.1.14
The Contractor should clear the blocked drainage and
provide proper mechanism to avoid waste water from entering the public road.
11.1.15
The Contractor should clean the mud trail and adopt
effective wheel washing mechanism to prevent any muddy trail from entering the
public haul road.
11.1.16
The Contractor should provide sandbags or other equivalent
measures to prevent surface runoff from entering public road.
11.1.17
The Contractor should remove sandy materials deposited near
the existing drainage system; and implement measures to prevent surface runoff
of the site and silt from entering the drainage system.
Chemical and Waste
Management
11.1.18
The Contractor should remove the mud stain and oil stain
properly.
11.1.19
The Contractor should remove the waste frequently.
11.1.20
The Contractor should provide drip tray to the chemicals to
prevent leakage to ground.
11.1.21
The Contractor should review the house-keeping practices
and clear the trash in a timely manner.
11.1.22
The Contractor should clear the oil stain and disposed of
as chemical waste.
11.1.23
The Contractor should remove stagnant water, oil stains and
debris in drip tray properly to prevent overflow.
Landscape and Visual
Impact
11.1.24
The Contractor should keep construction materials away from
trees and improve housekeeping on site.
Miscellaneous
11.1.25 The Contractor should
clean the public road in a timely manner.
11.1.26 The Contractor should
clean the pedestrian pathway regularly.
11.1.27 The Contractor should
remove the standing water on ground and retained water in drip trays to prevent
mosquito breeding.
11.1.28 The Contractor should
remove or turn over the panels such that no water can be retained.
11.2
Recommendations
11.2.1
The impact air quality and noise
monitoring programme ensures that any deterioration in environmental condition
is readily detected and timely actions are taken to rectify any
non-compliances. Assessment and analysis of monitoring results collected
demonstrated the environmental acceptability of the Project. The weekly
environmental site inspections ensure that all the environmental mitigation
measures recommended in the ERR are effectively implemented.
11.2.2
The EM&A programme
effectively monitored the environmental impacts from the construction
activities and no particular recommendations were advised for the improvement
of the programme.
11.3.1
All 1-hour and 24-hour TSP monitoring results complied with
the Action / Limit Levels in the reporting period.
11.3.2
No Action or Limit Level exceedance of construction noise
was recorded in the reporting period. No noise complaints related to 0700 ¨C
1900 hours on normal weekdays was received and followed by Environmental Team
in the reporting period.
11.3.3
No complaint, notification of summons and successful
prosecution was received in the reporting period.