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 October 2007 for the temporary CWSF at TKO
137 on 5, 11, 18 and 25 October 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
·
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.
·
Minor fugitive dust was observed during dumping of
non-inert waste. The Contractor was advised to improve the water spraying at
the non-inert stockpile and to provide longer water spraying time to the load
of the trucks at the weigh-bridge in Area B1.
·
Dark smoke was observed emitted from an excavator in
Area A. The Contractor has repaired the plant as observed on 11 October 2007.
·
Automatic wheel washing facilities were installed at
the site egress of the Project.
·
The weather condition was mostly dry in the reporting
month. The dampening frequency by water truck was inadequate.
·
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
·
The removal of deposited mud inside the trapezoidal
channel under the access bridge next the CEDD’s site
office in Area A was in progress. The Contractor has cleared the deposited mud
as observed on 25 October 2007.
·
Silt and mud was deposited on the access bridge and
road next the CEDD’s site office in Area A. The
contractor has cleared the deposited silt and mud as observed on 18 October
2007.
·
General refuse was found inside u-channel and desilting pit in Area A, and Area B1. The Contractor has cleared
the refuse as observed on 25 October 2007.
·
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
·
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, recycled metal and chemical
waste and no disposal of inert C&D 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 October 2007
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill
collected |
57,126.81 ton |
- |
|
Sorted waste (inert material) |
11,523.16 ton |
TKO Fill Bank |
|
Sorted waste (non-inert material) |
44,446.39 ton |
SENT Landfill |
|
Recycling (Metal) |
41.49 ton |
Recycling companies |
|
Non-inert C&D
waste |
0.001 cu |
SENT Landfill |
|
Inert C&D
waste |
0 tonne |
TKO Fill Bank |
|
Chemical waste |
0 kg |
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 |
|||
|
October 2007 |
Cumulative |
October 2007 |
Cumulative |
October 2007 |
Cumulative |
|
0 |
2 |
0 |
0 |
0 |
0 |