The
Project “Landslide Preventive Works at Po Shan, Mid-levels – Design and
Construction (Natural Terrain Risk Mitigation Works)” (hereafter called “the
Project”) includes the installation of about 700 numbers of soil nails and
about 60 numbers of raking drains on the natural terrain within the concerned
area.
China State – China Railway Joint Venture
(CCJV) was commissioned as the Contractor of the Project. ENSR Asia (HK) Ltd.,
which was integrated into AECOM Asia Company Limited as of 1 May 2009, was
employed by CCJV as the Environmental Team to carry out the EM&A programme.
The
impact environmental monitoring and audit for the Project includes the air
quality, noise, ecology, landscape and visual monitoring. The construction of
the Project and the EM&A programme commenced on 1 April 2008.
This
report documented the findings of EM&A works conducted in the period
between 1 and 30 November 2009. As informed by the Contractor, construction
activity in the reporting period was:
-
Removal of Winch system and working platform at Portion A1;
-
Laying of corrosion mat and wire mesh to soil profile at soil nailing
area at Portion A1 and A2; and
-
Hydroseeding to Portion A1, A2 and B1.
Breaches of Action and Limit Levels
There
was no action / limit level exceedance recorded for 1-hour and 24-hour TSP
monitoring.
In
the reporting month, all noise level recorded complied with the limit level.
Complaint, Notification of Summons
and Successful Prosecution
There
was no complaint, notification of summons and successful prosecution received
in the reporting month.
Reporting Change
There
was no reporting change required in the reporting month.
Future Key Issues
The weather in the
forthcoming month is expected to be dry and windy. The Contractor was reminded
to closely monitor and provide adequate irrigation to the transplanted trees
and compensatory planted species.
Background
1.1
The project site is located at the mostly
undeveloped hillside above the residential development at Po Shan Road and adjacent to the trimmed
back slope on the site of the catastrophic 1972 Po Shan Road failure. Previous
studies had been carried out and results indicated that the natural hillside
above Po Shan Road
is affected by high groundwater level and unfavourable geology. Sub-surface
drainage measures by means of sub-horizontal drains had been installed in
1984-85. These measures have been successful in lowering the main ground water
table, thus improving the stability of the slopes such that large-scale failure
has not occurred in the last twenty years.
1.2
The objective of the Project “Landslide Preventive
Works at Po Shan, Mid-levels – Design and Construction (Natural Terrain Risk
Mitigation Works)” under Contract CE 28/2004 (GE) is to carry out detailed
design and supervision of landslide preventive works on local repair of the
hillside to minimize slope deterioration and shallow instability.
1.3
The proposed landslide preventive works would be
constructed to protect the existing residential developments at the toe of the
project site.
1.4
The scope of works of this Project includes the
installation about 700 numbers of soil nails and about 60 numbers of raking
drains on the natural terrain within the concerned area. The length of the soil
nails is about 20m with a
spacing of 2m
horizontally and 3m
vertically; the length of raking drains is about 10m with a spacing of 5m horizontally and 15m vertically.
1.5
According to the Environmental Permit
(EP-235/2005/B) and the EM&A Manual of the Project, there is a need of an
EM&A programme including air quality, noise, ecology, and landscape and
visual monitoring.
1.6
AECOM Asia Company, integrating the operation of
ENSR
Asia (HK) Ltd. as of 1 May 2009, was employed by the
Contractor, China
State – China Railway
Joint Venture, as the Environmental Team (ET) to undertake the Environmental
Monitoring and Audit (EM&A) works for the Project. In accordance with the
EM&A Manual of the Project, environmental monitoring of air quality, noise,
ecology, landscape and visual and environmental site inspections would be
required for this Project.
Scope of Report
1.7
This is the nineteenth monthly Environmental
Monitoring and Audit (EM&A) Report under the Contract CE 28/2004 (GE) –
Landslide Preventive Works at Po
Shan Road, Mid-Levels – Design and Construction
(Natural Terrain Risk Mitigation Works). This report presented a summary of the
environmental monitoring and audit works, list of activities, and mitigation
measures proposed by the ET for the Project in November 2009.
Project Organization
1.8
The project organization 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
|
|
CEDD
|
Senior Engineer
|
H. W. Sun
|
2762 5375
|
2714 0247
|
|
ER (MGS)
|
Resident Engineer
|
Lawrence Shek
|
3188 0400
|
3188 0775
|
|
Assistant Resident Engineer
|
S. F. Chau
|
3188 0400
|
3188 0775
|
|
IEC (ENVIRON)
|
Independent
Environmental Checker
|
David Yeung
|
3743 0788
|
3548 6988
|
|
Contractor
(CCJV)
|
Project Manager
|
C. Y. Mak
|
3188 0538
|
3188 1710
|
|
Safety and
Environmental Officer
|
Yue Kin Fung
|
3188 0538
|
3188 1710
|
|
ET (AECOM)
|
ET Leader
|
Edith Ng
|
3105 8525
|
2891 0305
|
Summary of Construction Works
1.9
The Contactor has carried out major activities
in the reporting month. The construction work undertaken in this reporting
period is listed below:
-
Removal of Winch system and working platform at Portion A1;
-
Laying of corrosion mat and wire mesh to soil profile at soil nailing
area at Portion A1 and A2; and
-
Hydroseeding to Portion A1, A2 and B1.
1.10
The general layout plan of the Project site
showing the contract area is shown in Figure 1.1. The construction programme is
provided in Appendix B.
1.11
The mitigation measures implementation schedule
are presented in Appendix C.
Summary of EM&A Programme Requirements
1.12
The EM&A programme required environmental
monitoring for air quality, noise, ecology and landscape and visual and
environmental site inspections for air quality, noise, ecology, landscape and
visual and waste management. The EM&A requirements for each parameter
described in the following sections include:
- All
monitoring parameters;
- Monitoring
schedules for the reporting month and forthcoming months;
- Action
and Limit levels for all environmental parameters;
- Event
/ Action Plan;
- Environmental
mitigation measures, as recommended in the Project EIA study final report; and
- Environmental
requirement in contract documents.
Monitoring Requirements
2.1
In accordance with the EM&A Manual, 1-hour and
24-hour TSP levels at 2 air quality monitoring stations were established. Impact
1-hour and 24-hour TSP monitoring was conducted for at least once every 7 days
during the construction phase of the Project. The Action and Limit level of the
air quality monitoring is provided in Appendix D.
Monitoring Equipment
2.2
24-hour TSP air quality monitoring was performed
using High Volume Sampler (HVS) located at each designated monitoring station.
The HVS meets all the requirements of the EM&A Manual. Portable direct
reading dust meters were used to carry out the 1-hour TSP monitoring. Table 2.1
summarises the equipment used.
Table
2.1 Air Quality Monitoring Equipment
|
Equipment
|
Model
|
|
High Volume
Sampler
|
GS 2310 Accu-vol
system
|
|
Calibrator
|
GMW 25
|
|
1-hour TSP Dust
Meter
|
Laser Dust
Monitor – Model LD-3
|
Monitoring Parameters, Frequency and Duration
2.3
Table 2.2 summarizes the monitoring parameters,
frequency and duration of impact TSP monitoring.
Table
2.2 Air Quality Monitoring
Parameters, Frequency and Duration
|
Monitoring
Station
|
Parameter
|
Frequency
and Duration
|
|
CA1 & CA2
|
|
At least once every 7 days
|
|
1-hour TSP
|
At least 3 times every 7 days
|
Monitoring Locations
2.4
Both monitoring stations were set up at the
proposed locations in accordance with EM&A Manual. Table 2.3 describes
details of the two monitoring stations. The monitoring locations are shown in
Figure 2.1.
Table
2.3 Locations of Air Quality
Monitoring Stations
|
Monitoring Station
|
Identity / Description
|
|
CA1
|
Access road to Po
Shan Mansions
|
|
CA2
|
Podium of Hamilton Court
|
Monitoring Methodology
24-hour TSP Monitoring
Installation
2.5
The HVS was installed in the vicinity of the air
sensitive receivers. The following
criteria were considered in the installation of the HVS.
·
A horizontal platform with appropriate support to secure
the sampler against gusty wind was provided.
·
The distance between the HVS and any obstacles, such as
buildings, was at least twice the height that the obstacle protrudes above the
HVS.
·
A minimum of 2 meters separation from walls, parapets and
penthouse was required for rooftop sampler.
·
No furnace or incinerator flues were nearby.
·
Airflow around the sampler was unrestricted.
·
Permission was obtained to set up the samplers and to
obtain access to the monitoring stations.
·
A secured supply of electricity is needed to operate the
samplers.
Preparation of Filter Papers
·
Glass
fibre filters, G810 were labeled and sufficient filters that were clean and
without pinholes were selected.
·
All filters
were equilibrated in the conditioning environment for 24 hours before
weighing. The conditioning environment
temperature was around 25 °C
and not variable by more than ±3
°C; the relative humidity (RH) was < 50% and not variable by
more than ±5%. A convenient working RH
was 40%.
·
ALS Technichem (HK) Pty Ltd. has comprehensive quality assurance and
quality control programmes.
Field Monitoring
·
The
power supply was checked to ensure the HVS works properly.
·
The
filter holder and the area surrounding the filter were cleaned.
·
The
filter holder was removed by loosening the four bolts and a new filter, with
stamped number upward, on a supporting screen was aligned carefully.
·
The
filter was properly aligned on the screen so that the gasket formed an airtight
seal on the outer edges of the filter.
·
The
swing bolts were fastened to hold the filter holder down to the frame. The pressure applied should be sufficient to
avoid air leakage at the edges.
·
Then
the shelter lid was closed and was secured with the aluminum strip.
·
The HVS
was warmed-up for about 5 minutes to establish run-temperature conditions.
·
A new
flowrate record sheet was set into the flow recorder.
·
The
range specified in the EM&A Manual was between 0.6-1.7 m3/min.
·
The
programmable timer was set for a sampling period of 24 hrs + 1 hr, and
the starting time, weather condition and the filter number were recorded.
·
The
initial elapsed time was recorded.
·
At the
end of sampling, the sampled filter was removed carefully and folded in half
length so that only surfaces with collected particulate matter were in contact.
·
It was
then placed in a clean plastic envelope and sealed.
·
All monitoring information was recorded on a standard
data sheet.
·
Filters were sent to ALS
Technichem (HK) Pty Ltd. for
analysis.
Maintenance and Calibration
·
The HVS
and its accessories are maintained in good working condition, such as replacing
motor brushes routinely and checking electrical wiring to ensure a continuous
power supply.
·
HVSs are
calibrated using GMW-25 Calibration Kit prior to the commencement of baseline
air quality monitoring, and will be calibrated at bi-monthly intervals
throughout all stages of the impact monitoring.
·
Calibration
records are shown in Appendix E.
1-hour TSP Monitoring
Measuring Procedures
2.6
The measuring procedures of the 1-hour dust meter
are in accordance with the Manufacturer’s Instruction Manual as follows:
·
Set
POWER to “ON”, push BATTERY button, make sure
that the meter’s indicator is in the range with a red line and allow the
instrument to stand for about 3 minutes (Then, the air sampling inlet has been
capped).
·
Push
the knob at MEASURE position.
·
Push
“O-ADJ” button. (Then meter’s indication is 0).
·
Push
the knob at SENSI ADJ position and set the meter’s indication to S value
described on the Test Report using the trimmer for SENSI ADJ.
·
Pull
out the knob and return it to MEASURE position.
·
Push
“START” button.
Maintenance and Calibration
·
The
1-hour TSP meter would be checked at 3-month intervals and calibrated at 1-year
intervals throughout all stages of the air quality baseline monitoring.
Calibration records are shown in Appendix E.
Monitoring Results
2.7
The monitoring results for 1-hour TSP and 24-hour
TSP are summarized in Table 2.4 and 2.5 respectively and the monitoring results
are provided in Appendix F.
Table
2.4 Summary of 1-hour TSP Monitoring
Results in the Reporting Period
|
|
Average (mg/m3)
|
Range (mg/m3)
|
Action Level
(mg/m3)
|
Limit Level (mg/m3)
|
|
CA1
|
73.3
|
68.0
– 77.6
|
309.3
|
500
|
|
CA2
|
70.4
|
64.6
– 74.3
|
319.6
|
500
|
Table
2.5 Summary of 24-hour TSP
Monitoring Results in the Reporting Period
|
|
Average (mg/m3)
|
Range (mg/m3)
|
Action Level
(mg/m3)
|
Limit Level (mg/m3)
|
|
CA1
|
63.2
|
17.6
– 160.6
|
166.8
|
260
|
|
CA2
|
53.9
|
32.5
– 91.1
|
187.0
|
260
|
2.8
Air quality monitoring was carried out for both
1-hour TSP and 24-hour TSP at all the monitoring stations in the reporting
month.
2.9
The air quality monitoring results, in terms of
1-hour TSP and 24-hour TSP, were below the action and limit level at both
monitoring locations in the reporting month. The event action plan is annexed
in Appendix G.
2.10
Weather information including wind speed and wind
direction is annexed in Appendix H. The information was obtained from Hong Kong
Observatory Victoria Peak Automatic Weather Station and Central Pier Anemometer
Station.
Monitoring Requirements
3.1
In
accordance with the EM&A Manual, impact noise levels should be obtained at
2 noise monitoring stations. Impact noise monitoring was conducted for at least
once per week during the construction phase of the Project. The Action and
Limit level of the noise monitoring is provided in Appendix D.
Monitoring Equipment
3.2
Integrating
Sound Level Meter was employed for noise monitoring. They were Type 1 sound level meters capable
of giving a continuous readout of the noise level readings including equivalent
continuous sound pressure level (Leq) and percentile sound pressure
level (Lx). They comply with International Electrotechnical Commission
Publications 651:1979 (Type 1) and 804:1985 (Type 1). Portable electronic wind speed indicator
capable of measuring wind speed in m/s was employed to check the wind speed. Table 3.1 details the noise monitoring
equipment used.
Table
3.1 Noise Monitoring Equipment
|
Equipment
|
Model
|
|
Integrating Sound
Level Meter
|
Rion NL-31
|
|
Calibrator
|
Rion NC-73
|
Monitoring Locations
3.3
Two monitoring stations were set up in accordance
with EM&A Manual. Table 3.2 describes details of the two monitoring
stations. The monitoring locations are shown in Figure 2.1.
Table
3.2 Locations of Noise Monitoring
Stations
|
Monitoring Station
|
Identity / Description
|
|
CN1
|
Access road to Po
Shan Mansions
|
|
CN2
|
Podium of Po Shan
Mansions
|
Monitoring Parameters
3.4
One set
of 30-mins measurement at each monitoring station between 0700 and 1900 on
normal weekdays at a frequency of once per week was required to determine the
impact noise level. Leq, L10 and L90 would be
recorded.
Monitoring Methodology
Monitoring Procedures
·
The Sound Level Meter was set on a tripod at a height of 1.2 m above the ground.
·
Façade measurements were made at all three monitoring
locations.
·
The battery condition was checked to ensure the correct
functioning of the meter.
·
Parameters such as frequency weighting, the time
weighting and the measurement time were set as follows:
-
frequency weighting: A
-
time weighting: Fast
-
time measurement: Leq(30 minutes) during
non-restricted hours i.e. between 07:00 and 19:00 on normal weekdays
·
Prior to and after each noise measurement, the meter was
calibrated using a Calibrator for 94 dB at 1000 Hz. If the difference in the calibration level
before and after measurement was more than 1 dB(A), the measurement would be
considered invalid and repeat of noise measurement would be required after
re-calibration or repair of the equipment.
·
The wind speed was frequently checked with a portable
wind meter.
·
During the monitoring period, the Leq , L10
and L90 were recorded.
In addition, site conditions and noise sources were recorded on a
standard record sheet.
·
Noise measurement was paused during periods of high
intrusive noise (e.g. dog barking, helicopter noise) if possible. Observations
were recorded when intrusive noise was unavoidable.
·
Noise monitoring was cancelled in the presence of fog,
rain, wind with a steady speed exceeding 5
m/s, or wind with gusts exceeding 10 m/s.
Maintenance and Calibration
·
The microphone head of the sound level meter and calibrator
is cleaned with soft cloth at quarterly intervals.
·
The
meter should be checked and calibrated at yearly intervals.
·
Calibration
details for the sound level meter and calibrator are provided in Appendix E.
Monitoring Results
3.5
The monitoring results for noise are summarized in
Table 3.3 and the monitoring data is provided in Appendix I.
Table
3.3 Summary of 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)
|
|
CN1
|
63.3
|
62.9
– 65.0
|
75.0
|
|
CN2
|
62.6
|
62.3
– 63.8
|
75.0
|
3.6
There
was no noise complaint received in the reporting month, hence, no action level
exceedance was recorded. At both monitoring locations, CN1 and CN2, all the
monitoring results (daytime) were below the limit level of 75 dB(A).
3.7
All the
monitoring results lied within the range of the predicted noise levels in the
EIA report.
3.8
Major
noise sources during the noise monitoring included the construction activities
from the Project and nearby traffic noise.
Monitoring Requirement
4.1
As
required under Environmental Permit No. EP-235/2005/B, the Permit Holder is required
to carry out monitoring of the plant species of conservation interest to check
on the health and condition of the plants twice a month during the construction
period of the Project.
4.2
It is
required to undertake the ecological tasks to fulfill the requirements of the
Environmental Permit (EP). As required
by Conditions 2.11 and 3.5 of the EP, a suitably qualified ecologist with 7 or more years
of relevant experience shall be employed to conduct the ecological monitoring.
Monitoring Location
4.3
The ecological
monitoring was carried out for plant individuals of conservation interest
identified within the proposed works area.
Monitoring Methodology
4.4
The
ecological monitoring was conducted twice in the reporting month on 17 and 24
November 2009 by Ms. Gigi C C Lam, who had over 7 years of relevant ecological
experience.
4.5
The
plants of conservation interest, which were tagged during the baseline survey,
were checked during each monitoring.
Monitoring Results
4.6
Site
clearance and hydroseeding were in progress during the monitoring visits.
4.7
No
adverse observation was identified in the reporting month.
Monitoring Requirement
5.1
During the construction phase of the Project,
landscape and visual monitoring should be carried out bi-weekly by a Registered
Landscape Architect (RLA) to check if the design, implementation and
maintenance of the landscape and visual mitigation measures are fully realized.
A detailed report is annexed in Appendix J.
Summary of Inspection – 3 November 2009
Matters Arising from Previous Inspections
5.2
The Contractor had rectified all tree ID numbers
for the remaining existing trees as observed on site.
5.3
Pruning of side branch of existing tree T678
overhanging the footpath and removal of dead tree T612 with half broken branch
was outstanding. The Contractor was
reminded to carry out the works as soon as possible.
5.4
It was noted that the Contractor’s clarification
of the status of existing trees T516 and T517 located immediately outside of
the works boundary was still outstanding.
The Contractor was reminded to provide necessary information as soon as
possible.
Protection of Existing Trees
5.5
It was observed that the Contractor has tied
safety ropes to existing trees for installation of geotextile and
wire-mesh. The Contractor was requested
to remove the ropes from trees immediately, and was reminded not to use trees
as anchor points in future.
Recommendations
5.6
The Contractor was again reminded to clarify the
status of missing trees as soon as possible.
5.7
The Contractor was recommended to prune tree
T678 and remove dead tree T612 as soon as possible.
5.8
The Contractor was requested to remove safety
ropes from trees and not to use trees as anchor points.
Summary of Inspection – 17 November 2009
Matters Arising from Previous Inspections
5.9
The Contractor had removed all safety ropes from
existing trees.
5.10
The Contractor had pruned the side branch of
existing tree T678 overhanging the footpath and removal of dead tree T612 with
half broken branch.
5.11
It has been clarified that T516 and T517 located
immediately outside of the works boundary were already missing during the
initial tree survey before the commencement of construction of the Project.
Protection of Existing Trees
5.12
No particular observation was made during the
inspection period.
Recommendations
5.13
No particular recommendation was made during the
inspection period.
Next Landscape and Visual Audit Schedule
5.14
The landscape and visual audits in the next
reporting month was tentatively scheduled to 1, 15 and 29 December 2009.
Site Inspection
6.1
Site Inspections were carried out on a weekly
basis to monitor the implementation of proper environmental pollution control and
mitigation measures for the Project. In the reporting month, 4 site inspections
were carried out on 3, 10, 17 and 24 November 2009. The detail findings of the
landscape and visual audits in the reporting month are presented separately in
Section 5. The environmental site inspection summaries are attached in Appendix
K. Particular observations are described below.
Air Quality
6.2
No adverse observation was identified in the
reporting month.
Noise
6.3
No adverse observation was identified in the
reporting month.
Water Quality
6.4
No adverse observation was identified in the
reporting month.
Chemical and Waste Management
6.5
No adverse observation was identified in the
reporting month.
Ecology
6.6
No adverse observation was identified in the
reporting month.
Landscape and Visual
6.7
It was observed that the Contractor has tied
safety ropes to existing trees for installation of geotextile and
wire-mesh. The Contractor was requested
to remove the ropes from trees immediately, and was reminded not to use trees
as anchor points in future. The Contractor had removed all safety ropes from
existing trees during the audit on 17 November 2009.
Assessment of Environmental Monitoring Results
6.8
All monitoring results were audited against the
Action / Limit levels and any exceedance would be validated and issued when
necessary.
6.9
The monitoring results in the reporting period
were comparable with the EIA predictions. Detailed discussions are given in
Section 2 and 3.
Advice on the Solid and Liquid Waste Management Status
6.10
The Contractor is registered as a chemical waste
producer for this Project.
6.11
As advised by the Contractor, no C&D waste
was disposed offsite in the reporting month. C&D material was reused on
site as much as possible.
Environmental Licenses and Permits
6.12
The environmental licenses and permits for this
Project and valid in the reporting month is summarized in Table 6.1.
Table
6.1 Summary of Environmental
Licensing and Permit Status
|
Description
|
Permit No.
|
Valid Period
|
Remarks
|
|
From
|
To
|
|
Environmental
Permit
|
EP-235/2005/B
|
23/11/07
|
--
|
-
Installation of about 700 nos. of soil nails
and about 60 nos. of raking drains in the natural terrain;
-
Rock slope stabilisation works at upper
portion of the natural terrain; and
-
Other associated works.
|
|
Registration
as a Chemical Waste Producer
|
5213-141-C3250-02
|
13/12/06
|
--
|
Spent
lubricating oil and mineral oil
|
|
Effluent
Discharge License
|
EP880/W10/XX0261
|
07/11/06
|
31/12/11
|
--
|
|
Notification
of Constriction Work under APCO (Construction Dust)
|
001012125
|
18/07/06
|
--
|
--
|
Implementation Status of Environmental Mitigation Measures
6.13
In response to the site audit findings, the
Contractor carried out corrective actions.
6.14
A summary of the Implementation Schedule of
Mitigation Measures (EMIS) is presented in Appendix C. Most of the necessary
mitigation measures were implemented properly.
Summary of Exceedances of the Environmental Quality Performance Limit
6.15
All 1-hour TSP, 24-hour TSP and noise monitoring
results complied with the Action / Limit levels.
6.16
No exceedance was recorded in the reporting
month.
Summary of Complaints, Notification of Summons and Successful
Prosecutions
6.17
The Environmental Complaint Handling Procedure
is annexed in Figure 6.1.
6.18
No environmental complaint, notification of summons
and successful prosecutions was received in the reporting month.
Construction Programme for the Coming Months
7.1
The construction programme for the Project is
provided in Appendix B.
7.2
The major construction work in December 2009
will be:
- Compensatory planting to Soiling Nailing Area at Section 3.
Key Issues for Coming Month
7.3
Key issues to be considered in the coming month
included:
- Avoid
causing damage to the trees and to plants species of conservation interest;
- Adequate
irrigation should be provided to the transplanted trees and compensatory
planted species.
7.4
The following mitigation measures are required:
Air Quality Impact
- Nil
Construction Noise Impact
- Nil
Water Quality Impact
- Nil
Chemical and Waste Management
- Nil
Ecological Impact
- Disturbance
to existing vegetation should be minimized wherever possible.
Landscape and Visual Impact
- For
tree planting operations, method statement should be checked against
specification requirements;
- All
retained trees within the working boundary should be checked regularly.
Monitoring Schedule for the Coming Months
7.5
The tentative schedule for environmental monitoring
in December 2009 is provided in Appendix L.
Conclusions
8.1
The construction phase of the project commenced
in April 2008.
8.2
1-hour TSP and 24-hour TSP monitoring was carried
out in the reporting month. All monitoring results complied with the action /
limit level. No exceedance was recorded.
8.3
All impact daytime noise monitoring results
complied with the limit level in the reporting month.
8.4
Environmental site inspections were carried out 4
times in November 2009. Recommendations on remedial actions were given to the
Contractor for the deficiencies identified during the site audit.
8.5
Two landscape and visual audits were carried out in
the reporting month. The Contractor has tied safety ropes to existing trees for
installation of geotextile and wire-mesh.
The Contractor was requested to remove the ropes from trees immediately,
and was reminded not to use trees as anchor points in future.
8.6
Two ecological audits were carried out in the
reporting month. No specific observation
was identified in the reporting month.
8.7
No environmental complaint, notification of
summons and prosecution was received in the reporting month.
Recommendations
8.8
According to the environmental site inspections
performed in the reporting month, the following recommendations were provided:
Air Quality Impact
- Nil
Construction Noise Impact
- Nil
Water Quality Impact
- Nil
Chemical and Waste Management
- Nil
Ecological Impact
- All
identified vegetation of conservation interest should be preserved;
-
The Contractor was recommended to take necessary
measures to prevent damage to all vegetation within the Project site.
Landscape and Visual Impact
-
The Contractor was requested not to use trees as
anchor points.
