Introduction
This is the sixth monthly
Environmental Monitoring and Audit (EM&A) report prepared by Maunsell
Environmental Management Consultants Limited (MEMCL) for the “Temporary
Construction Waste Sorting Facility at Tseung Kwan O
Area 137” (the Project). This report documents the findings of EM&A Works
conducted during the impact period in April 2006 for Tseung
Kwan O Area 137.
As advised by the Contractor, the project
commenced on 12 November 2005. The construction activities in April 2006 were:
l
Temporary access road construction including road kerb and
U-channel;
l
Widening of temporary access road;
l
Installation of surveillance system and public address
system;
l
Construction of Engineer’s site office and car parking area;
l
Operation of Construction Waste Sorting Facilities (CWSF) by
manual sorting; and
l
Installation of water spraying system for dust suppression.
Environmental Monitoring Works
Air Quality
1-hr TSP Monitoring
All the monitoring data complied
with the
24-hr TSP Monitoring
There were two limit level exceedances
recorded on 4 April 2006 at monitoring station TKO1 and TKO2. Exceedances recorded were considered related to the
Project.
Complaints,
Non-compliance and Prosecutions
No environmental complaints,
non-compliances or prosecutions were received in the reporting month.
Permits and
Licences
No new permit or license was
obtained / applied in the reporting month. The Contractor was advised to apply
for the effluent discharge license.
Environmental
Site Inspection
There were 4 site inspections conducted
in April 2006. Due to the wet weather condition, water ponding
was occasionally observed at site office area in Area B1 and inside the
trapezoidal channel. Fugitive dust was observed during transferring and dumping
of materials. The Contractor had installed the sprinkler system at tipping hall
by 27 April 2006, yet the water supply was still awaiting.
Construction waste inside the trapezoidal
channel had been cleared by 13 April 2006. The Contractor was reminded to
prevent any silty materials or waste entering to the
channel. The wheel-washing bay at Area B2 was found mal-function,
the Contractor was reminded to repair it as soon as possible.
Future Key
Issues
The weather is expected to be wet
and windy in the forthcoming month and as such, the Contractor should provide
preventive measures to prevent surface runoff, such as bunding around the
site boundaries, to ensure functional temporary drainage
system is in place around the site and to maintain sufficient dust suppression
measures for vehicle movement along haul roads and during sorting activities. It is
recommended to implement sufficient mitigation measures to eliminate dust
emission from dump truck traffic and sorting activities.
It is also recommended to implement
all necessary preventive measures to avoid oil leakage on ground/soil, such as
provision of drip trays for all oil drums/chemical containers and placement of tarpaulin
sheets on the ground during maintenance of equipment on site. In the event of
any oil leakage problem, the Contractor should properly remove the leaked oil
and handle the contaminated soil as chemical waste.