Introduction
This is the seventh
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 May 2006 for Tseung Kwan O Area 137.
As advised by the Contractor, the project
commenced on 12 November 2005. The construction activities in May 2006 were:
l
Temporary
access road construction including road kerb and U-channel;
l
Installation
of steel fence along temporary access road;
l
Construction
of car parking shelter at Engineer’s office;
l
Operation
of Construction Waste Sorting Facilities (CWSF) by manual sorting;
l
Installation
of water spraying system for dust suppression;
l
Forming
end-tipping platform and access ramp for mechanical sorting plant; and
l
Erection
of mechanical sorting plant.
Environmental Monitoring Works
Air Quality
1-hr
TSP Monitoring
All the monitoring data
complied with the
24-hr
TSP Monitoring
All the monitoring data
complied with the
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 May 2006. Due to the wet weather condition, water
ponding was occasionally observed at Area A and inside the tipping hall.
Fugitive dust was occasionally 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.
The
Contractor was reminded to prevent any silty materials or waste entering to the
channel by providing bundings along the trapezoidal channel. The Contractor was
also reminded to clear the accumulated silt inside the perimeter channel in
Area B2, particularly after heavy rainfall.
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.