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Content |
Chapter Title Page
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Figure 1.1:_ General
Layout Plan Figure 1.2:_ Location
of Secondary Boundary Fence and Noise Monitoring Station at Section 4 |
Tables
This is the 7th Monthly EM&A Report for
the works carried out during the reporting month from 1 to 31 December 2010,
and presents a summary of the environmental monitoring and audit works, list of
activities, and mitigation measures implemented during the abovementioned
reporting month.
Site Activities
The following major construction activities took place
during the reporting month:
Works Order No. 1 (ASD 010962):
¡ No major works. (Substantial
completion was certified on 12 October 2010.)
Works Order No. 2 (ASD 010969):
¡ Tree pruning work;
¡ Installation of transparent panel
for the new boundary fence;
¡ Construction of footing of the new
boundary fence;
¡ Construction of steel frame and mesh
for the new boundary fence; and
¡ Excavation works for footing of
steel fence.
Works Order No. 3 (ASD 010974):
¡ Erection of hoarding for the new
check point;
¡ Excavation at the new check point
site; and
¡ Formation of blinding layer for the
new check point.
Breach of Action and Level Limits
There was no breach of Action or Limit levels for
noise level (measured as Leq) in the reporting month.
Complaints
There was no record of complaints received in the reporting month.
Notification of Summons and Successful Prosecutions
There was no record of Notification of summons and
successful prosecution in the reporting month.
Reporting Changes
There are no reporting changes in the reporting month.
Future Key Issues
Future key issues to be considered in the forthcoming
month include:
Air
¡ Regular maintenance of all plant and
equipment;
¡ Handling of any excavated dusty
materials or stockpile of dusty materials;
¡ Spraying of water prior to any
loading, unloading or transfer of dusty materials; and
¡ Washing of vehicles before leaving
the construction sites.
Noise
¡ Location of noisy equipment and
noisy activities relative to the Noise Sensitive Receivers (NSRs);
¡ Avoiding the operation of unused
equipment, and minimising the use of Powered Mechanical Equipment (PME) and
parallel use of noisy equipment / machinery;
¡ Adoption of Level 1 site-specific
direction mitigation measures (use of quiet plant and movable noise barrier)
for construction/demolition work undertaken at a distance of 60m or less to the
NSRs; and
¡ Regular maintenance of all plant and
equipment.
Water Quality
¡ No discharge of silty water into the
storm drain and drainage channel within and the vicinity of the site;
¡ Removal off-site of construction
plant causing pollution to water system due to leakage of oil or fuel; and
¡ Temporary stockpiling of excavated
soil in a specially designated area with provision of tarpaulin cover.
Waste
¡ Control measures at the stockpiling
area to prevent the generation of dust and pollution of stormwater channels,
fish ponds or river channels;
¡ Segregation, storage, transportation
and disposal of different types of waste; and
¡ Keeping of records of quantities of
wastes generated, recycled and disposal (with locations).
Ecology
¡ Good site practices for controlling
the dust and water quality; and
¡ Clear definition of works limit to
avoid impact on adjacent habitats.
Landscape and Visual
¡ Retain tree with high amenity or
ecology value and contributing most to landscape and amenity of site;
¡ Precautionary area around trees to
be retained equal to half of the tree canopy diameter;
¡ Prohibition of the storage of
materials including fuel, the movement of construction vehicles, and the
refuelling and washing of equipment including concrete mixers within the
precautionary area;
¡ Pruning of the branches of existing
trees identified for transplantation and retention;
¡ Rectification and repair of damaged
vegetation following the construction phase to its original condition;
¡ Careful monitoring of all works
affecting the trees identified for retention and transplantation; and
¡ Enforcement of construction site
controls including storage of materials, location and appearance of site
accommodation and the careful design of site lighting to prevent light spillage.
Environmental mitigation measures will be implemented
on site as recommended and weekly site audits will be carried out to ensure
that the environmental conditions are acceptable.
The Frontier Closed Area (FCA) is an
integral part of the package of measures aimed at maintaining the integrity of
the boundary of the Hong Kong Special Administrative Region (HKSAR) with
mainland
The PBF and SBF (hereafter referred
to as ‘The Project’) will be erected along the northern and southern curbs of
the realigned BPR respectively to facilitate the Hong Kong Police Force (HKPF)
in combating cross-boundary criminal activities. The reduced FCA will comprise a narrow strip
of land covering the realigned BPR and areas to its north, together with the
points of crossing the boundary (i.e. the Boundary Control Points and Sha Tau
Kok town). Areas south of the SBF will
generally be excised from the FCA.
An Environmental Impact Assessment
(EIA) for the proposed works was carried out under the Environmental Impact
Assessment Ordinance (EIAO, Cap 499). An EIA Report and an Environmental
Monitoring and Audit (EM&A) Manual were completed in January 2009 and
approved by the Environmental Protection Department (EPD) in April 2009
(Register No. AEIAR-136/2009). The entire length of the proposed works is about
21.7 km from west of Pak Hok Chau to east of Sha Tau Kok and is divided into
four sections. A general layout plan of the Project site is presented in Figure
1.1, while the location of the SBF at Section 4 in
Sha Tau Kok is presented in Figure
1.2.
An Environmental Permit (EP)
covering the overall proposed works was issued in June 2009 (Permit No.
EP-347/2009). An application for Variation of the Environmental Permit (VEP)
(Application No. VEP-314/2010) was subsequently submitted on 24 May 2010 and
the amended Environmental Permit (Permit No. EP-347/2009/A) was issued by EPD
on 9 June 2010.
With regard to Section 4, an
application for a Further Environmental Permit (FEP) covering the works under Works
Order No. ASD 010962 (also known as Works Order No. 1) was submitted to EPD on
2 March 2010 (Application No. FEP-104/2010) and this was granted on 29 March
2010 (Permit No. FEP-03/347/2009). Furthermore, another application for an FEP
covering the works under Works Order Nos. ASD 010969 and ASD 010974 (also known
as Works Order Nos. 2 and 3 respectively) – including a new section of SBF
consisting of transparent panel, a new checkpoint and kiosk – was submitted to
EPD on 13 August 2010 (Application No. FEP-112/2010) and was granted on 7
September 2010 (Permit No. FEP-04/347/2009/A).
The Architectural Services
Department (ArchSD) has been entrusted with the management of the Project by
the Project Proponent – the Secretary for Security of the HKSAR Government.
Mott MacDonald Hong Kong Limited (MMHK) has in turn been commissioned by ArchSD
as the consulting engineer for the entire Project under Consultancy Agreement
No. 9SN005, and is the Engineer’s Representative (ER) for construction of the
Project.
For Section 4 of the Project, MMHK
and ENVIRON Hong Kong Limited (ENVIRON) have been commissioned as the
Environmental Team (ET) and Independent Environmental Checker (IEC)
respectively to undertake the Environmental Monitoring and Audit (EM&A)
programme as described in the approved EM&A Manual of the Project. Also,
the Contract to undertake and perform the construction works for Section 4 was
awarded to Chun Wo Construction & Engineering Company Limited (‘The
Contractor’) and is scheduled to last for approximately 18 months. It formally
commenced on 28 May 2010, and the construction works and EM&A programme
under the above-mentioned EP and FEP(s) also commenced on this date. The
construction works programme is presented in Appendix A.
This monthly EM&A report
summarises the environmental monitoring and audit works, list of activities and
mitigation measures implemented at Section 4 during the period of 1 to 31
December 2010 inclusive (‘reporting month’).
The scope of works for Section 4
consists of:
¡ Erection of an SBF from the entrance
of the Sha Tau Kok town (i.e. the location of ‘Gate One’) to the Sha Tau Kok
Control Point (approximately 0.5 km);
¡ Use of transparent panel for a
section of an SBF;
¡ Provision of a two-storey high
checkpoint at ‘Gate One’;
¡ Addition of a kiosk/guard house on
an existing footpath of
¡ Removal of the existing checkpoint
at Shek Chung Au.
The organisation chart and lines of
communication with respect to the on-site environmental management structure
together with the contact information of the key personnel are shown in Appendix B.
1.3
Works Undertaken in the Reporting
Month
The following activities have taken
place during the reporting month:
Works Order No. 1 (ASD 010962):
¡ No major works. (Substantial
completion was certified on 12 October 2010.)
Works Order No. 2 (ASD 010969):
¡ Tree pruning work;
¡ Installation of transparent panel
for the new boundary fence;
¡ Construction of footing of the new
boundary fence;
¡ Construction of steel frame and mesh
for the new boundary fence; and
¡ Excavation works for footing of
steel fence.
Works Order No. 3 (ASD 010974):
¡ Erection of hoarding for the new
check point;
¡ Excavation at the new check point
site; and
¡ Formation of blinding layer for the
new check point.
Figure 1.1: General Layout Plan
Figure 1.2: Location of Secondary
Boundary Fence and Noise Monitoring Station at Section 4
2.1
Summary of EM&A Requirements
The EM&A programme requires
environmental monitoring of construction noise as well as environmental site
inspections for air quality, noise, water quality, waste management, ecology,
landscape and visual, as specified in the approved EM&A Manual.
Originally, the EM&A Manual
designated two locations as noise monitoring stations during the construction
phase. However, currently noise levels at only one of these monitoring stations
(as shown in Figure
1.2) are monitored. The reasons for this arrangement
are detailed in Section 3.2.
A summary of impact EM&A
requirements is presented in Table
2.1. The Environmental Quality Performance Limits and
the Event and Action Plans (for construction noise only) are shown in Appendix
C and Appendix
D respectively.
Table 2.1: Summary of EM&A Impact
Requirements
|
Parameters |
Description |
Location(s) |
Frequency |
Duration |
|
Air |
On-site
Inspection |
Active Works Sites |
Weekly |
During Construction |
|
Noise |
Leq,
30min |
STK-DBD |
Weekly |
During Construction |
|
Waste management |
On-site Waste Audit |
Active Works Sites |
Weekly |
During Construction |
|
On-site Waste Inspection |
||||
|
Wastewater |
On-site Wastewater Audit |
Active Works Sites |
Weekly |
During Construction |
|
Ecology |
On-site Audit of Recommended Ecological Mitigation Measures |
Active Works Sites |
Periodically (by Contractor) |
As specified in EM&A Manual (see Table E.5) |
|
Landscape and Visual |
On-site Audit of Recommended Landscape and Visual Mitigation Measures |
Active Works Areas |
Regular intervals (by Contractor/ Landscape Sub-Contractor) |
As specified in EM&A Manual (see Table E.6) |
|
General Site Conditions |
Environmental Site Inspection |
Works areas and areas affected by works |
Weekly |
During Construction |
2.2
Implementation of Environmental
Mitigation Measures
The Contractor is required to
implement mitigation measures listed in the latest valid EP and FEP(s) (where applicable),
EIA Report and EM&A Manual. During routine site inspections, the
Contractor's implementation of mitigation measures, if any, are to be inspected
and reviewed. A schedule of the implementation of mitigation measures
identified at the EIA stage is given in Appendix
E.
3.1
Monitoring Parameters, Frequency and
Duration
Following the requirements in the
EM&A Manual for noise, noise monitoring has to be carried out during the
construction phase. Continuous noise monitoring for the A-weighted levels Leq,
L10 and L90 is undertaken once per every week during
daytime hours (between 07:00 and 19:00) on normal weekdays.
Table 3.1 summarizes the monitoring parameters, frequency
and duration of air quality monitoring. The noise monitoring schedule during
the reporting month is presented in Appendix
F.
Table 3.1: Noise Monitoring Parameters,
Frequency and Duration