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 March 2008 for the temporary CWSF at TKO 137
on 6, 12, 19
and 26 March 2008.
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
·
Minor
fugitive dust was observed during dumping and manual sorting at the non-inert
stockpile and during unloading by dump truck at VGF in Area A. The Contractor
was reminded to provide longer water spraying time to suppress generation of
dust.
·
Minor
fugitive dust was observed at Area B3. The Contractor was reminded to provide
water spraying for dust suppression during dry weather at the unpaved area of
Area B3.
·
Dark
smoke was observed emitting from an excavator (C6) and a dozer (D2) at the
non-inert stockpile in Area A. The Contractor was reminded to properly maintain
the plant on site.
·
Automatic wheel washing facilities were installed at
the site egress of the Project.
·
The weather condition was mostly dry in the reporting
month. Water truck was deployed for dust suppression.
·
Vehicles
were travelling below the speed limit in the temporary CWSF. There were
sufficient speed limit signs on site to advise the drivers.
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
·
Accumulation
of silt was observed inside a desilting pit next to
trapezoidal channel in Area A. The Contractor was reminded to remove the silt
regularly and properly maintain the drainage system.
·
General
refuse was observed inside the U-channel in Area B2 and a desilting
pit in Area A. The Contractor was reminded to remove the refuse and properly
maintain the drainage system.
·
Besides
the afore-said issues, it was recommended to arrange 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
·
Oil stains were found on ground near the
sub-contractor site office at Area B1. The Contractor was reminded to clear the
oil stains / contaminated soil 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 ET 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 were disposal of
sorted inert material, sorted non-inert material, non-inert C&D waste and
metal, no disposal of chemical waste in the reporting month. 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 March 2008
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill collected |
59099.62 ton |
- |
|
Sorted waste (inert
material) |
13371.36
ton |
TKO
Fill Bank |
|
Sorted waste (non-inert
material) |
43582.79
ton |
SENT
Landfill |
|
Recycling (Metal) |
36.52
ton |
Recycling
companies |
|
Non-inert C&D waste |
1.4 ton |
SENT Landfill |
|
Inert
C&D waste |
0
ton |
TKO
Fill Bank |
|
Chemical waste |
0 L |
Chemical Waste Treatment
Centre |
3.8
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.
3.9
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. Disposal
of chemical waste was not undertaken in the reporting month.
3.10
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
3.11
No
new environmental license and permit was obtained in the reporting month.
3.12
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) |
|
Certificate of Approval – Air Pollution Control (Furnaces, Ovens and
Chimneys) (Installation and Alteration) Regulations |
-- |
4/9/06 |
-- |
(Approved) |
|
Effluent Discharge License |
RE/D1180/839/1 |
13/11/06 |
30/11/11 |
(Valid) |
Implementation
Status of Environmental Mitigation Measures
3.13
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
3.14
There
was no exceedance of 1-hour and 24-hour TSP
monitoring recorded in the reporting month.
3.15
The
event action plans are attached in Appendix J.
Summary of
Complaints, Notifications of Summons and Successful Prosecutions
3.16
No environmental
complaint, notification of summons and prosecutions were received in the
reporting month. A summary of environmental complaints and prosecutions was
given in Table 3.3 and the cumulative statistics of complaints is presented in
Appendix M.
Table 3.3 Summary
of Environmental Complaints and Prosecutions
|
Complaints
logged |
Summons
served |
Successful
Prosecution |
|||
|
March 2008 |
Cumulative |
March 2008 |
Cumulative |
March 2008 |
Cumulative |
|
0 |
4 |
0 |
0 |
0 |
0 |