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 May 2006 for the temporary CWSF at TKO 137
on 4, 10, 18 and 25 May 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 occasionally observed during
transferring, sorting and dumping of C&D waste. Haul road occasionally
appeared dry. The Contractor was reminded to provide sufficient water spraying.
The Contractor had installed water sprinklers at tipping hall but water
spraying was still awaiting.
·
Two automatic wheel washing facilities were installed
at the site egress of the Project. However, Wheel-washing bays at Areas B1 and
B2 had been found mal-function.
·
Dark smoke was observed from the generator set behind
the Engineer’s site office at Area A.
·
Unpaved area next to Area B1 was found dry and
fugitive dust was observed during vehicular movement. The Contractor was
reminded to dampen all the unpaved areas on site.
·
The weather condition was mostly wet and windy in the
reporting month. Water truck for dampening the haul road was deployed during
drier days. However, the dampening frequency 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
·
Small amount of rubbish, silty material and stagnant
water was found inside the trapezoidal channel after heavy rains.
·
Water ponding was found in open area and tipping hall
at Area A. The Contractor was reminded to fill the area or remove the stagnant
water regularly.
·
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.
·
The Contractor was reminded to apply for the Effluent
Discharge License.
·
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 buckets were found placed on a drip tray without
cover near the tipping hall. The Contractor was reminded to provide tarpaulin
cover to the oil buckets.
·
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 May 2006
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill
collected |
73,082.60 ton |
- |
|
Sorted waste (inert material) |
4,526.19 ton |
TKO Fill Bank |
|
Sorted waste (non-inert material) |
64,560.15 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
was no exceedance on 1-hr and 24-hr TSP recorded in the reporting month.
3.17
The
event action plans is attached in Appendix J.
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 |
|||
|
May 2006 |
Cumulative |
May 2006 |
Cumulative |
May 2006 |
Cumulative |
|
0 |
0 |
0 |
0 |
0 |
0 |