Introduction
This is the twenty-second
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 August 2007 for Tseung
Kwan O Area 137.
As advised by the
Contractor, the project commenced on 12 November 2005. The construction activities in August 2007
were:
l
Operation
of Construction Waste Sorting Facilities (CWSF) by mechanical sorting plant;
l
Modification
and enhancing the mist blower system at the sorting operational area for dust
suppression;
l
Re-location
of the signal transmission antennas for the Surveillance System;
l
Safety
barrier at access ramp leading to VGF End-tipping Platform;
l
Construction
of additional Engineer’s inspection kiosk at Portion A; and
l
Maintenance
of haul road surface.
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
complaint, non-compliances or prosecutions were received in the reporting
month.
Permits and Licences
No new permit or license
was obtained in the reporting month.
Environmental Site Inspection
There were 5
site inspections conducted in August 2007. Due to the occasional rainy weather
conditions, deposited mud was found inside the catchpit,
desilting pit, u-channel and trapezoidal channel. Regular
clearing of the deposited mud inside the drainage system was recommended.
The
Contractor was reminded to prevent any silty
materials or waste from entering the trapezoidal channel by providing bunding along the banks of the 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 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.