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 5
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 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 ¡°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 a Variation of Environmental Permit (EP-324/2008/A) (VEP)
on 31 January 2012. The VEP (EP-324/2008/B) was subsequently granted on 17
March 2014 which superseded the previous EP (EP-324/2008/A).
The construction works for this Project will be 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/B) 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 2013 and
31 October 2014. As informed by the Contractor, construction activities in the
reporting period were:-
-
Site clearance;
-
Ground investigation;
-
Construction of site accommodation;
-
Tree felling and transplantation;
-
Piling
works;
-
Pipe
laying;
-
Retaining
wall construction;
-
Excavation;
-
Backfilling;
-
Drainage;
-
Temporary
bridge construction;
-
Noise
barrier construction;
-
Houses
demolition; and
-
Bridge demolition.
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.
Two (2) Limit Level exceedances were recorded
on 12 and 18 June 2014 respectively for noise monitoring at M3 in the reporting
period. The exceedances were considered
non-project-related. The details of exceedance are
given in Appendix M of the Monthly EM&A Report of June 2014.
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
|
Terence Kong
|
2828 5919
|
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;
-
Construction of site accommodation;
-
Tree felling and transplantation;
-
Piling
works;
-
Pipe
laying;
-
Retaining
wall construction;
-
Excavation;
-
Backfilling;
-
Drainage;
-
Temporary
bridge construction;
-
Noise
barrier construction;
-
Houses
demolition; and
-
Bridge demolition.
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 Tai Po and Tai Mei Tuk Automatic Weather Stations.
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)
|
76.9
|
61.7 ¨C 89.6
|
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)
|
45.6
|
0.2 ¨C 176.1
|
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*
|
68.0
|
64.9 ¨C 72.9
|
75
|
M3#
|
64.6
|
60.1 ¨C 69.7
|
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
Two (2) Limit Level exceedances
were recorded on 12 and 18 June 2014 respectively for noise monitoring at M3 in
the reporting period. The exceedances were considered
non-project-related. The details of exceedance are
given in Appendix M of the Monthly EM&A Report of June 2014.
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
|
10,986 m3 (of which 0m3 was broken concrete)
|
Tuen Mun
38
|
General refuse
|
965 m3
|
NENT Landfill
|
Paper/cardboard
packaging
|
507 kg
|
Recycling Contractors
|
Plastics
|
0 kg
|
Recycling Contractors
|
Metals
|
28 kg
|
Recycling Contractors
|
C&D
materials reused on site
|
3,560 m3
|
Site Area
|
C&D
materials reused in other projects
|
708 m3
|
Other projects
|
C&D
materials reused in NENT for backfilling
|
6,566 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
For construction noise, no Action Level exceedance was recorded. Two (2) Limit Level exceedances were recorded on 12 and 18 June 2014
respectively for noise monitoring at M3 in the reporting period.
7
Summary of
Complaints, Notifications of Summons and Successful Prosecutions
7.1.1
One (1) noise-and-odour-related
complaint was received on 19 December 2013 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 2013.
7.1.2
One (1) air-and-odour-related
complaint was received on 24 February 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 February 2014.
7.1.3
One (1) air-related complaint was received on
23 October 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 October 2014.
7.1.4
No notification of summons and successful
prosecution was received in the reporting period.
7.1.5
The statistics on complaints, notifications of
summons and successful prosecutions are summarized in Appendix H.
7.1.6
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
Two (2) Limit Level exceedances
were recorded on 12 and 18 June 2014 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 maintain effective wheel
washing facilities and clear the mud trails left on public road.
11.1.3
The Contractor should spray the stockpiles with
water or cover them entirely by tarpaulin sheets for dust suppression.
11.1.4
The Contractor was reminded to spray water on
main haul roads to maintain the surfaces wet and suppress dust. (Reminder)
Construction Noise Impact
11.1.5
The Contractor should re-position the generator
and air compressors to reduce the noise generated to the house nearby.
11.1.6
The Contractor should further wrap the upper
part of the breaker with absorptive materials to minimize noise generation.
Water Quality Impact
11.1.7
The Contractor should review measures to
prevent silt and debris from depositing in drainage systems and clear the muddy
water in the U-channel and public road.
11.1.8
The Contractor was reminded to divert muddy
water to desilting facilities prior to discharge.
(Reminder)
11.1.9
The Contractor should clear the muddy water and
add sand bundings near the site boundary to prevent
the discharge of muddy water when necessary.
Chemical and Waste
Management
11.1.10
The Contractor should label the chemical
containers properly.
11.1.11
The Contractor should close all the gaps
between the drip tray and the generator.
11.1.12
The Contractor should educate workers to
recycle wastes properly and clear the refuse in the recycle bins regularly.
11.1.13
The Contractor was reminded to use absorptive
materials to soak leaked oil, if any, when maintaining the power pack. (Reminder)
11.1.14
The Contractor should clear oil stains on the
ground and prevent oil leakage to air, soil and water bodies.
11.1.15
The Contractor should provide drip trays to
chemicals and generator to prevent any oil leakage.
11.1.16
The Contractor should clear the general refuse
regularly to maintain site hygiene.
Landscape and
Visual Impact
11.1.17
No adverse observation was identified in the
reporting month.
Miscellaneous
11.1.18
The Contractor should clear the stagnant water
to prevent mosquito breeding.
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. Two (2) Limit Level exceedances were recorded on 12 and 18 June 2014
respectively for noise monitoring at M3 in the reporting period.
11.3.3
One (1) noise-and-odour-related
complaint was received on 19 December 2013 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 2013.
11.3.4
One (1) air-and-odour-related
complaint was received on 24 February 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 February 2014.
11.3.5
One (1) air-related complaint was received on
23 October 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 October 2014.
11.3.6
No notification of summons and successful
prosecution was received in the reporting period.