TABLE OF CONTENTS
Page
1.1 Project
Organization and Contacts of Key Management
1.3 Summary of
Construction Works
2 Environmental Monitoring and Audit
Requirements
2.3 Environmental
Quality Performance Limits (Action/Limit Levels)
2.4 Environmental
Mitigation Measures
2.5 Environmental
Impact Hypotheses Tested
5 Advice on the Solid and Liquid Waste
Management Status
6 Summary of Exceedances of the Environmental
Quality Performance Limit
7 Summary of Complaints, Notifications of
Summons and Successful Prosecutions
8 REVIEW of THE VALIDITY OF THE EIA/ERR
Predictions
9 Review of the effectivness and efficiency of
mitigation measures
10 Review of success of EM&A Programme
11 Comments, recommendations and Conclusions
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 4.1 Summary of Construction Noise Monitoring
Results in the Reporting Period
Table 5.1 Summary
of Waste Flow Table for
Contract No. HY/2012/06
Figure
1.1 General
Project Layout Plan of Contract No. HY/2012/06
Figure 1.3a-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
EXECUTIVE SUMMARY
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, EP-324/2008/C and
EP-324/2008/D on 31 January 2012, 17 March 2014, 27 March 2015 and 27
August 2015 respectively. The current valid VEP was applied on 29 December 2016
and the VEP (EP-324/2008/E) was subsequently granted on 26 January 2017.
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 three works contracts. Contract No. HY/2012/06 ¡°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¡±. In addition, Contract No. ¡°Provision of
Bus-Bus Interchange on Fanling Highway Kowloon Bound¡±
was carried out within the site boundary of Contract No. 02/HY/2015. This
report focuses on Contract No. HY/2012/06 ¡°Widening of Fanling
Highway ¨C Tai Hang to Wo Hop Shek Interchange¡± in Stage 2 of the Project and ¡°Provision of Bus-Bus Interchange on Fanling Highway Kowloon Bound¡± under Works Order Nos.
CB128520-5 and CB128519-0 in Contract No. 02/HY/2015 ¡°Highway Department Term
Contract (Management and Maintenance of Roads in Tai Po and North District
excluding High Speed Roads 2016-2022)¡±. The construction works of Works Order Nos. CB128520-5 and CB128519-0
under Contract No. 02/HY/2015 have been completed on 23 May 2018.
Pursuant to
the EP (EP-324/2008/E) 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 2019 and 31 October 2020. As informed by the Contractor,
construction activities of Contract No. HY/2012/06 in the reporting period
were:
- Noise Barrier installation and maintenance
- Excavation
- Backfilling
- Sign gantry installation
- Road resurfacing
- Landscape works
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 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 notification of summons or
successful prosecution was received in the reporting period.
One (1) noise and dust related complaint was received on 14 November
2019 and followed up by the Environmental Team. The complainant complained about
dust and noise nuisance caused continuously by road construction works at Tai
Wo Service Road West. After investigation, there is no adequate information to
conclude that the complaint is related to this project.
1
Introduction
1.1
Project
Organization and Contacts of Key Management
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 of [HY/2012/06] (China State Construction Engineering
(Hong Kong) Limited) |
Environmental Officer |
Michael Tsang |
9277 4956 |
2672 2501 |
|
C C Chow |
9679 6315 |
2672 2501 |
||
|
Contractor of [02/HY/2015] (Chiu Hing Construction & Transportation
Company Limited) |
Safety Officer |
Marty Tai |
9106 5318 |
- |
|
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
Summary
of Construction Works
1.3.1
Details of the construction works of Contract No. HY/2012/06 carried
out by the Contractor in this reporting period are listed below:
- Site clearance
- Noise Barrier installation and maintenance
- Excavation
- Backfilling
- Sign gantry installation
- Road resurfacing
- Landscape works
1.3.2
The general layout plan of the Project
site of Contract No. HY/2012/06 and Works Order Nos. CB128520-5 and CB128519-0
under 02/HY/2015 showing the contract
areas are shown in Figure 1.1 and Figure 1.2 respectively.
1.3.3
The environmental mitigation measures implementation schedule are presented in Appendix C.
2
Environmental
Monitoring and Audit Requirements
2.1
Monitoring
Parameters
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
Monitoring
Locations
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 1.3a.
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 1.3a-b shows the locations
of the monitoring stations.
2.3
Environmental
Quality Performance Limits (Action/Limit Levels)
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
Environmental
Mitigation Measures
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
air
quality monitoring
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) |
62.6 |
55.6 ¨C 87.6 |
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) |
25.5 |
7.9 ¨C 63.6 |
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
Noise
MONITORING
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* |
67.7 |
64.7 ¨C 70.5 |
75 |
|
M3# |
63.2 |
59.1 ¨C 67.5 |
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 Level 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
Advice
on the Solid and Liquid Waste Management Status
5.1.1
As advised by the Contractor of Contract No. HY/2012/06,
10,523 m3 of inert C&D
material was generated in the reporting month (5,349 m3 disposed of
as public fill to Tuen Mun 38, 2,313 m3 of
inert C&D materials was reused on site, 1,987 m3 of inert
C&D materials was reused in other projects and 784 m3 was broken
concrete). For C&D wastes, 1,165 m3 of general refuse was disposed of at NENT
landfill, 308 kg of paper/cardboard packaging, 0 kg of plastics and 63,965 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 for Contract No.
HY/2012/06
|
Waste Type |
Actual Amount |
Disposal/Reuse Locations |
|
Inert
C&D materials disposed of as public fill |
5,439 m3 |
Tuen Mun 38 |
|
Broken
concrete |
784 m3 |
Tuen Mun 38 |
|
C&D
wastes disposed as general refuse |
1,165 m3 |
NENT Landfill |
|
Paper/cardboard
packaging |
308 kg |
Recycling Contractors |
|
Plastics |
0 kg |
Recycling Contractors |
|
Metals |
63,965 kg |
Recycling Contractors |
|
C&D
materials reused on site |
2,313 m3 |
Site Area |
|
C&D
materials reused in other projects |
1,987 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 Level 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.
7
Summary
of Complaints, Notifications of Summons and Successful Prosecutions
7.1.1
No notification of summons or successful prosecution was
received in the reporting period.
7.1.2
One (1) noise and dust related complaint was
received on 14 November 2019 and followed up by the Environmental Team. The
complainant complained about dust and noise nuisance caused continuously by
road construction works at Tai Wo Service Road West. After investigation, there
is no adequate information to conclude that the complaint is related to this
project.
7.1.3
The statistics on complaints, notifications of summons and
successful prosecutions are summarized in Appendix H.
7.1.4
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
REVIEW
of THE VALIDITY OF THE EIA/ERR Predictions
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.
9
Review
of the effectivness and efficiency of mitigation
measures
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.
10
Review
of success of EM&A Programme
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
Comments
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:
Contract No.
HY/2012/06
Air
Quality Impact
- The Contractor was advised to cover the
stockpile on site with imperious sheeting.
- The Contractor was advised to replace
the decolored NRMM label.
- The
Contractor was reminded to provide NRMM label to the excavator and bulldozer.
- The
Contractor was advised to implement watering for dusty work.
- The Contractor was advised watering the exposed
area regularly.
- The
Contractor was reminded to cover the stockpile at entirely.
- The Contractor was advised to wash the vehicle
wheel before the vehicle leaving the construction site.
- The
Contractor was reminded to clean the silt at boundary.
Construction
Noise Impact
¡¤
The Contractor was reminded to provide soundproof cloth to
the breaker.
Water
Quality Impact
- The Contractor was advised to
remove the silt at the site boundary.
- The Contractor was reminded
to remove the soil water and treat it properly.
Chemical and Waste Management
- The Contractor was advised to
remove the construction material and waste.
- The Contractor was advised to provide sufficient waste collection point.
- The Contractor was advised to
remove the general refuse and improve the site tidiness.
- The Contractor was advised to
provide drip tray to the chemical on for preventing potential leakage.
- The Contractor was advised to provide onsite waste sorting for
the general refuse, construction waste and recyclable material.
Landscape and Visual Impact
¡¤
Nil.
Miscellaneous
- The Contractor was reminded
to improve the site housekeeping.