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 5 site inspections conducted in August 2007 for the temporary CWSF at TKO 137
on 2, 8, 16, 23 and 30 August 2007.
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 of
non-inert waste in Area A. The Contractor was reminded to increase water
spraying frequency by water truck or provide more water sprinklers for dust
suppression.
·
Dark smoke was observed emitted from a bulldozer at 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 wet in the reporting month. The
dampening frequency by water truck was adequate.
·
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
·
Deposited mud was found on part of the access road in Area B2, inside
the catchpit & u-channel in Area B1 and inside the desilting pit & u-channel.
Deposited mud was also left inside the trapezoidal channel under the access
bridge next to CEDD’s site office in Area A. The Contractor was reminded to
clear the deposited mud inside the drainage system after rainfall.
·
Stagnant water was found inside the trapezoidal channel in Area A. The
Contractor was reminded to pump out the stagnant water and properly maintain
the drainage system.
·
General refuse was found inside the catchpit and u-channel in Area B2,
near the site exit in Area B1, and inside desilting pits, u-channel and the
trapezoidal channel in Area A. The Contractor was advised to clear the refuse
and properly maintain the drainage system.
·
Muddy water was observed discharged directly into the trapezoidal
channel from the opening under the access bridge next to CEDD’s site office.
The Contractor was requested to provide bunding along the trapezoidal channel
to divert the muddy water to the desilting facilities prior to discharge.
·
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
·
Oil stains were found on ground in Area B1. The Contractor was reminded
to clear the 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 and recycled metal and no
disposal of inert C&D waste and 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 August 2007
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill
collected |
69,270.56 ton |
- |
|
Sorted
waste (inert material) |
15,902.52 ton |
TKO Fill Bank |
|
Sorted
waste (non-inert material) |
52,610.22 ton |
SENT Landfill |
|
Recycling
(Metal) |
77.81 ton |
Recycling companies |
|
Non-inert C&D
waste |
1.55 tonne |
SENT Landfill |
|
Inert C&D waste |
0 tonne |
TKO Fill Bank |
|
Chemical waste |
0 Litre |
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. No disposal
of chemical waste was 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, notifications 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 |
|||
|
August 2007 |
Cumulative |
August 2007 |
Cumulative |
August 2007 |
Cumulative |
|
0 |
2 |
0 |
0 |
0 |
0 |