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 May 2007 for the temporary CWSF at TKO 137
on 4, 10, 17, 23 and 31 May 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 manual sorting
and dumping of non-inert waste at Area A. Fugitive dust was occasionally
observed along the main haul road during dry weather. The Contractor was
reminded to provide sufficient water spraying.
·
Mud was occasionally observed deposited along the edge
of the haul road. The Contractor was reminded to clear the deposited mud
regularly.
·
The Contractor was advised to relocate the blower for
mist spraying for excavation works next to the VGF tipping hall to a lower
position to increase the effectiveness of dust suppression.
·
Dark smoke was observed emitted from a loader in Area
B1. The Contractor was reminded to properly maintain the plants on site.
·
Automatic wheel washing facilities were installed at the
site egress of the Project.
·
The weather condition was wet and windy in the
reporting month. Water truck for dampening the haul road was deployed. 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
·
Stagnant muddy water was observed inside the
trapezoidal channel in Area A. The Contractor was reminded to desilt the muddy
water 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 stain and used batteries were found placed on
bareground in Area B1 near the workshop. The Contractor was reminded to
properly store the chemicals and batteries on site and clear the oil stain.
·
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, 55,094.25 tonnes
of public fill were collected in the reporting month. There were 11,508.48
tonnes of sorted inert material, 50,441.71 tonnes of sorted non-inert material
disposed in the reporting month. 44.58 tonnes of metal were sorted and dispose
offsite for recycling. There was no non-inert waste generated at TKO and
disposed to Landfill. There was no disposal of 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 2007
|
Waste Type |
Actual Amount |
Disposal Locations |
|
Public fill
collected |
55,094.25 ton |
- |
|
Sorted waste (inert material) |
11,508.48 ton |
TKO Fill Bank |
|
Sorted waste (non-inert material) |
50,441.71 ton |
SENT Landfill |
|
Recycling (Metal) |
44.58 ton |
Recycling companies |
|
Non-inert
C&D waste |
0 tonne |
SENT Landfill |
|
Inert C&D
waste |
0 tonne |
TKO Fill Bank |
|
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 obtained in the reporting month.
3.13
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
3.14
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
3.15
There
was one limit level exceedance of 24-hour TSP recorded in the reporting month.
The exceedance was considered partially due to the Project.
3.16
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
3.17
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 |
|||
|
May 2007 |
Cumulative |
May 2007 |
Cumulative |
May 2007 |
Cumulative |
|
0 |
2 |
0 |
0 |
0 |
0 |