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 9
11 Comments, recommendations and Conclusions 9
11.1 Comments 9
11.2 Recommendations 10
11.3 Conclusions 11
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
¡°Widening of Tolo Highway / Fanling
Highway between Island House Interchange and Fanling¡±
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 ¡°Widening of Fanling Highway ¨C
Tai Hang to Wo Hop Shek Interchange¡± and the entrusted portion to CEDD under
Contract No. CV/2012/09 ¡±Liantang/Heung
Yuen Wai Boundary Control Point Site Formation and Infrastructure Works ¨C
Contract 3¡±. This report focuses on Contract No. HY2012/06 ¡°Widening
of Fanling Highway ¨C Tai Hang to Wo
Hop Shek Interchange¡± 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 2014 and
31 October 2015. As informed by the Contractor, construction activities in the
reporting period were:
-
Site clearance;
-
Ground investigation;
-
Tree felling and transplantation;
-
Piling
works;
-
Pipe
laying;
-
Retaining
wall construction;
-
Excavation;
-
Backfilling;
-
Drainage;
-
Temporary
bridge construction;
-
Box
culvert construction;
-
Noise
barrier construction;
-
Houses
demolition;
-
Soil
nail;
-
Footbridge
demolition; and
-
House
construction.
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 Level exceedance of construction noise was recorded in the
reporting period since no noise complaints related to 0700 ¨C 1900 hours on
normal weekdays were received.
One (1) Limit Level
exceedance was recorded on 15 January 2015 for noise monitoring at M3 in the reporting period. The exceedance was
considered non-project-related.
Complaint, Notification of Summons and
Successful Prosecution
One (1) water-related complaint was received on 31 December 2014 and
followed up by the Environmental Team in the reporting period. The full
complaint investigation report is annexed in Appendix M of the Monthly EM&A
Report for December 2014.
One (1) odour-related
complaint was received on 25 March 2015 and followed up by the Environmental
Team in the reporting period. The full complaint investigation report is
annexed in Appendix M of the Monthly EM&A Report for March 2015.
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
Programme
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:
-
Site clearance;
-
Ground investigation;
-
Tree felling and transplantation;
-
Piling
works;
-
Pipe
laying;
-
Retaining
wall construction;
-
Excavation;
-
Backfilling;
-
Drainage;
-
Temporary
bridge construction;
-
Box
culvert construction;
-
Noise
barrier construction;
-
Houses
demolition;
-
Soil
nail;
-
Footbridge
demolition; and
-
House
construction.
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
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 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, with several
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)
|
76.7
|
60.2 ¨C 88.7
|
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)
|
42.7
|
7.6 ¨C 157.8
|
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*
|
69.1
|
64.7 ¨C 71.2
|
75
|
M3#
|
63.9
|
54.7 ¨C 67.9
|
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
There was no noise complaint related to 0700 ¨C
1900 hours on normal weekdays was received and
followed up by Environmental Team in the reporting period. Hence, no
Action Level exceedance was recorded.
4.1.5
One (1) Limit Level exceedance was recorded on
15 January 2015 for noise monitoring at M3 in the reporting period. The
exceedance was considered non-project-related.
4.1.6
The graphical plots of the trends of the
monitoring results are provided in Appendix G.
5.1.1
As advised by the Contractor, 10,986 m3 of
inert C&D material was disposed of as public fill to Tuen Mun 38 (of which 0m3 was broken concrete), while
965 m3 of general refuse was disposed of at NENT landfill. 507 kg of paper/cardboard packaging, 0 kg of plastics and 28 kg of
metals were collected
by recycling contractors in the reporting period. 3,560 m3, 708 m3, and
6,566 m3 of inert C&D materials were reused on site, in other
projects and in NENT for backfilling purpose respectively. 0kg 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
|
19,600 m3 (of which 0m3 was broken concrete)
|
Tuen Mun
38
|
General refuse
|
1,135 m3
|
NENT Landfill
|
Paper/cardboard
packaging
|
842 kg
|
Recycling Contractors
|
Plastics
|
375 kg
|
Recycling Contractors
|
Metals
|
90 kg
|
Recycling Contractors
|
C&D
materials reused on site
|
7,458 m3
|
Site Area
|
C&D
materials reused in other projects
|
7,416 m3
|
Other projects
|
C&D
materials reused in NENT for backfilling
|
4,114 m3
|
NENT Landfill
|
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
One (1) Limit Level exceedance was recorded on
15 January 2015 for noise monitoring at M3 in the reporting period. The
exceedance was considered non-project-related.
7
Summary of
Complaints, Notifications of Summons and Successful Prosecutions
7.1.1
One (1) water-related complaint was received on
31 December 2014 and followed up by the Environmental Team in the reporting
period. The full complaint investigation report is annexed in Appendix M of the
Monthly EM&A Report for December 2014.
7.1.2
One (1) odour-related
complaint was received on 25 March 2015 and followed up by the Environmental
Team in the reporting period. The full complaint investigation report is
annexed in Appendix M of the Monthly EM&A Report for March 2015.
7.1.3
No notification of summons and successful prosecution
was received in the reporting period.
7.1.4
The statistics on complaints, notifications of
summons and successful prosecutions are summarized in Appendix H.
7.1.5
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
One (1) Limit Level exceedances were recorded
on 15 January 2015 respectively for noise monitoring at M3 in the reporting
period. The exceedances were considered non-project-related. As a result, this
is generally in line with the EIA and 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 spray the soil stockpiles
with water or cover them entirely by tarpaulin for dust suppression.
11.1.3
The Contractor was reminded to enhance the
water spraying frequency for dust suppression.
11.1.4
The Contractor was reminded to set up watering
facilities as soon as possible and enhance the water spraying frequency to
suppress dust. (Reminder)
11.1.5
The Contractor was recommended to set up the
wheel washing bay properly to avoid runoff from wheel washing.
11.1.6
The Contractor was recommended to clean the public road and
site entrances regularly to prevent dusty materials from entering public roads.
11.1.7
The Contractor should cover cement stock with impervious
sheeting entirely.
11.1.8
The load on vehicle should be covered entirely before
leaving the site.
Construction Noise Impact
11.1.9
The Contractor was reminded to wrap the breaking tip of the
breaker with sound-proof materials to minimize noise generation during breaking
activities. (Reminder)
11.1.10
The Contractor was recommended to maximize the area of the
sound-proof canvas or use equivalent measures to close the gap between the
canvas and the ground, and wrap the breaker with effective sound-proof
materials.
Water Quality Impact
11.1.11
The Contractor was reminded to cover the slope
entirely with tarpaulin to prevent soil from depositing in drainage systems.
(Reminder)
11.1.12
The Contractor was recommended to clear the
muddy water regularly and review the wheel-washing facilities.
11.1.13
The Contractor was recommended to review their
mechanism to collect muddy water to prevent muddy water from discharging to
public areas by clearing the mud accumulating in the U-channel or carrying out
equivalent measures.
11.1.14
The Contractor was recommended to use another
means such as pH papers to monitor the pH of the water in the sedimentation
tank regularly.
11.1.15
The Contractor was recommended to ensure all
water discharged from the construction site has passed the sedimentation tank.
11.1.16
The Contractor was recommended to clear the
runoff from the public road and ensure there are sufficient sand bundings surrounding the site area.
Chemical and Waste
Management
11.1.17
The Contractor should clear the oil stains, and
inspect and maintain the machine whenever necessary.
11.1.18
The Contractor should clear general refuse
regularly and provide receptacles for general refuse collection to maintain
site hygiene.
11.1.19
The Contractor was recommended to provide a
drip tray to retain the oil leakage and dispose of the stained soil properly as
chemical waste.
11.1.20
The Contractor was recommended to stick
appropriate labels on the chemical container.
Landscape and Visual
Impact
11.1.21
No adverse observation was identified in the
reporting month.
Miscellaneous
11.1.22 The
Contractor was recommended to post the latest version of Environmental Permit
at all site entrances.
11.1.23 The
Contractor was recommended to clear the stagnant water to prevent mosquito
breeding and clear the refuse to maintain site hygiene.
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
For construction noise, no Action Level
exceedance was recorded. One (1) Limit Level exceedances were recorded on 15
January 2015 respectively for noise monitoring at M3 in the reporting period.
11.3.3
One (1) water-related complaint was received on
31 December 2014 and followed up by the Environmental Team in the reporting
period. The full complaint investigation report is annexed in Appendix M of the
Monthly EM&A Report for December 2014.
11.3.4
One (1) odour-related
complaint was received on 25 March 2015 and followed up by the Environmental
Team in the reporting period. The full complaint investigation report is
annexed in Appendix M of the Monthly EM&A Report for March 2015.
11.3.5
No notification of summons and successful
prosecution was received in the reporting period.