Introduction
This is the twenty-ninth monthly
Environmental Monitoring and Audit (EM&A) report prepared by Maunsell
Environmental Management Consultants Limited (MEMCL), which changed the name to
ENSR Asia (HK) Ltd. (ENSR) on 1 May 2007 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 March
2008 for Tseung Kwan O Area 137.
As advised by the
Contractor, the project commenced on 12 November 2005. The construction activities in March 2008
were:
l
Operation
of Construction Waste Sorting Facilities (CWSF) by mechanical sorting plant;
l
Disposal
of sorted waste to Landfill and Fill Bank;
l
Maintenance
work for haul road and mechanical sorting plant;
l
Operation
of Sorting Facility at Area B3; and
l
Survey of inert content of the construction waste.
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 complaint, non-compliance
or prosecution was received in the reporting month.
Permits and Licences
No new permit or license
was obtained in the reporting month.
Environmental Site Inspection
There
were 4 site inspections conducted in March 2008. Due to the dry weather
conditions, minor fugitive dust was occasionally observed during dumping and
manual sorting at the non-inert stockpile at Area A. The Contractor was
reminded to provide longer water spraying time to the load at the weigh-bridge
at Area B1.
Accumulated
silt was observed inside the desilting pit next to the trapezoidal channel in
Area A. The Contractor was reminded to prevent any silty materials or waste
from entering the trapezoidal channel. The Contractor was also reminded to
properly store the chemicals on site to prevent spillage.
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 that a functional temporary drainage system is in place
around the site. The Contractor should also 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 generation from dumping 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.