3.1
Environmental site inspections are required to inspect the construction activities
and operation of the temporary CWSF in order to ensure that appropriate
environmental protection and pollution control mitigation measures are properly
implemented.
3.2
There
were 4 site inspections conducted in April 2006 for the temporary CWSF at TKO 137
on 6, 13, 20 and 27 April 2006.
3.3
Site
inspections were carried out by ET to monitor the implementation of proper
environmental pollution control and mitigation measures for the Project. After
the site inspection, the Contractor was notified of the ET’s observations and
recommendations. A corrective action plan detailing the environmental
observations had also been prepared by the ET. The Contractor then completed
this plan to propose/report their remedial works. This corrective action plan
submission procedure was adopted for each subsequent ET’s inspection to notify
all the relevant parties of the Contractor’s follow up actions. The site
inspection summaries are attached in Appendix H. Particular observations are
described as follows:
Air Quality
·
Fugitive dust was observed during transferring, sorting and dumping of C&D
waste. Haul road appeared dry and fugitive dust was observed. The Contractor
was reminded to provide sufficient water spraying.
·
Wheel-washing bay at Area B2 was found mal-function. The Contractor was
reminded to repair the wheel-washing bay as soon as possible.
·
The weather condition was mostly wet and windy in the reporting month.
Water truck for dampening the haul road was deployed. However, the dampening
frequency was inadequate.
·
Two automatic wheel washing facilities were installed at the site egress
of the Project.
·
Vehicles
were travelling below the speed limit in the temporary CWSF. There were
sufficient speed limit signs on site to advise the drivers.
·
No
dark emission was noted from the equipment in the reporting month. All the
powered mechanical equipment (PME) were regularly
maintained.
Noise
·
The
major noise source was vehicle movement in the temporary CWSF. Since the nearby
NSRs were remote from the temporary CWSF, the noise
impact was minimal. There was no specific observation noted regarding noise
issue.
Water Quality
·
The Contractor had removed all waste from the trapezoidal channel by 13 April
2006.
·
Silty material was found accumulated inside the
u-channel at Area B2.
·
Water ponding was found outside the site
office in Area B1. The Contractor was reminded to fill the area or remove the
water regularly.
·
Stagnant water was found inside the trapezoidal channel at Area A. The
Contractor was reminded to clear the stagnant water regularly to prevent
mosquitoes breeding.
·
Bunding along the trapezoidal channel had yet provided.
The Contractor was reminded to provide bunding along
the trapezoidal channel to prevent surface runoff and muddy water released from
site.
·
Besides
the afore-said issues, the Contractor was reminded to maintain the drainage
systems regularly. It was recommended to arrange additional maintenance for the
silt traps at the wheel washing bays before and after rainstorms so as to
ensure their maximum treatment capacities.
Chemical and Waste Management
·
A chemical waste store had been provided on site.
·
Oily water was accumulated inside the drip tray of the generator and oil
bucket without drip tray were observed behind the CEDD site office at Area A. The
Contractor was reminded to remove the oily water in drip tray and provide drip
tray to the oil bucket.
·
Oil stains from oil buckets were found near tipping hall. The Contractor
was reminded to remove the oil stain and dispose of as chemical waste.
·
The
Contractor provided waste skips to collect general refuse and would dispose of
them regularly to the SENT Landfill.
Landscape and Visual
·
Hoarding
was erected at the site egress and aligned along the site boundary in
connection with the Fill Bank at TKO 137.
Review of Environmental Monitoring
Procedures
3.4
The
monitoring works conducted by the Environmental Team were inspected regularly.
The observations for the monitoring works were recorded and summarised as
follows:
·
The
monitoring team recorded the observations around the monitoring stations within
and outside of the construction site.
·
The
monitoring team recorded the temperature, air pressure and general weather
condition on the monitoring day.
Assessment of Environmental Monitoring
Results
3.5
All
monitoring results were audited against the A/L levels and any exceedances would be validated.
3.6
The
monitoring results in this reporting period were comparable with the
established action and limit levels.
Advice on the Solid and Liquid Waste
Management Status
3.7
As advised by the
Contractor, there was no disposal of inert C&D materials, C&D waste and
chemical waste in the reporting month.
3.8
The
actual amounts of different types of waste generated by the activities of the
Project in the month are shown in Table 3.1.
Table 3.1 Actual
Amounts of Waste Generated in April 2006
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill
collected |
66,710.26 ton |
- |
|
Sorted
waste (inert material) |
9,667.85 ton |
TKO Fill Bank |
|
Sorted
waste (non-inert material) |
58,864.30 ton |
SENT Landfill |
|
C&D waste |
0 tonne |
SENT Landfill |
|
Chemical waste |
0 Litre |
Chemical Waste Treatment Centre |
3.9
The
Contractor should provide sufficient drip trays for all the oil drums/chemical
containers. Besides, these drip trays should be covered by tarpaulin sheet to
minimize rainfall accumulation.
3.10
The
Contractor should use suitable containers with proper labels to store chemical
wastes inside a designated chemical waste store in accordance with Code of Practice
on the Packaging, Labelling and Storage of Chemical Wastes. The Contractor
should also advise their workers of the proper procedures in handling the
chemical waste. All the trip
tickets for chemical waste disposal were properly kept in the site office. No
chemical waste disposal was undertaken in the reporting month.
3.11
The
Contractor should provide sufficient preventive measures during equipment
maintenance works so as to avoid oil leakage on the ground. In the event of any
oil leakage, the Contractor should clean up the polluted soil and handle all
the materials using for this cleaning works as chemical waste.
Environmental Licences and Permits
3.12
No
new environmental license and permit was applied or obtained in the reporting
month.
3.13
The Contractor had submitted the drainage plan for review, both ET and
IEC had provided comments and the revised plan was awaiting.
The Contractor was also advised to apply for the effluent discharge license.
3.14
The
status of all permits/licences obtained/in use during the reporting period are
summarised in Table 3.2.
Table 3.2 Summary
of Environmental Licensing and Permit Status
|
Description |
Permit No. |
Valid Period |
Remarks |
|
|
From |
To |
|||
|
Environmental Permit |
EP-134/2002/F |
26/1/06 |
- |
(Valid) · Site clearance · Construction of a temporary storm water
system · Stockpiling of 6 million m3
of public fill · Setting up two barging points for
transporting the stockpiled public fill by barges · Setting up a temporary barging point at
the existing Explosive Off-loading Barging Point for the period of May 2004
to December 2004 for transporting the stockpiled public fill by barge · Construction and operation of a
Construction and Demolition Material Sorting Facility (C&DMSF) · Setting up a Construction and Demolition
Material Crushing Facility at the · Remove the temporary fill bank |
|
Registration as a Chemical Waste Producer |
5213-839-P2896-01 |
25/1/06 |
-- |
(Registered) |
Implementation Status of Environmental
Mitigation Measures
3.15
An
updated summary of the Environmental Mitigation Implementation Schedule (EMIS)
is presented in Appendix I. Most of the necessary mitigation measures were
implemented properly. Any deficiencies were noted in the remarks of the
schedule.
Summary of Exceedances of the Environmental Quality Performance Limit
3.16
There
were two limit level exceedances on 24-hr TSP recorded
at stations TKO1 and TKO2 in the reporting month.
3.17
The
event action plans and the interim notifications of environmental quality exceedances are attached in Appendix J and K respectively.
Summary of Complaints, Notifications of
Summons and Successful Prosecutions
3.18
No
complaints, notifications of summons and prosecutions were received in the
reporting month. A summary of environmental complaints and prosecutions was
given in Table 3.3.
Table 3.3 Summary of Environmental Complaints and Prosecutions
|
Complaints logged |
Summons served |
Successful Prosecution |
|||
|
Apr 2006 |
Cumulative |
Apr 2006 |
Cumulative |
Apr 2006 |
Cumulative |
|
0 |
0 |
0 |
0 |
0 |
0 |