Construction Programme for the Coming Months
4.1
The construction programme for the Project is shown in
Appendix B.
4.2
The activities to be conducted in the next two months
included:
l
Operation
of Construction Waste Sorting Facilities (CWSF) by full-scale mechanical
sorting;
l
Modification
and improvement works for mechanical sorting plant;
l
Construction
of water meter applied from WSD;
l
Sloping
trimming to enlarge the operational area for the mechanical sorting plant;
l
Hydroseeding
to trimmed slope at Portion A;
l
General
site formation for surface runoff at portion A; and
l
Drainage
works at portion A.
4.3
Key issues to be considered in the coming month include:
·
Chemical and waste management;
·
Treatment of runoff and wastewater prior to discharge;
·
Dust generated from loading and unloading activities; and
·
Dust generated from dump trucks traffic.
4.4
The following mitigation measures are required:
Air Quality
Impact
·
To
prohibit any open burning on site;
·
To
provide adequate water spraying on haul roads and working platforms;
·
To
operate and maintain automatic wheel washing facilities properly;
·
To
dampen the fill material prior to unloading or movement;
·
To
provide road sweeping on the haul roads near site egress and the public roads
outside site egress;
·
To
provide proper maintenance for equipment and vehicles on site;
·
To
ensure implementation of the dust mitigation measures for the construction
activities, if any;
·
To
maintain proper operation of the mist spraying systems;
·
To
ensure vehicle speed below 10 km/hr in the temporary CWSF;
·
To
investigate any other dust sources around the air sensitive receivers; and
·
To
follow up any exceedance, if any, caused by the temporary CWSF operation.
Noise Impact
·
To
identify the noise sources inside and outside of the site;
·
To
follow up any exceedance caused by the temporary CWSF operation;
·
To
switch off equipment if not in use;
·
To
operate silent equipment; and
·
To
re-schedule the work activities in the event of valid noise exceedance.
Water Quality
Impact
·
To
operate and maintain the wastewater treatment facility for the site toilet;
·
To
provide covers for the drip trays to avoid stagnant water ponding due to
rainfall;
·
To ensure cleanliness of oil interceptor bypass tank
and all the drainage channels;
·
To
maintain the existing silt trap to ensure sufficient treatment of wheel wash
water frequently;
·
To
maintain the drainage system in the temporary CWSF; and
·
To
avoid formation of any stagnant water or provide insecticide to avoid mosquito
breeding in the temporary CWSF.
Chemical and
Waste Management
·
To
remove waste from the site regularly;
·
To
properly store and handle chemical wastes on site;
·
To
implement trip ticket system for all the imported public fill and general
refuse disposal;
·
To
provide and manage sufficiently sized drip trays for diesel drums or chemical
containers;
·
To
maintain proper housekeeping at the workshop area;
·
To
provide all the preventive measures during equipment maintenance;
·
To
remove the oil stains in the event of leakage and handle all the materials
using for this cleaning works as chemical waste; and
·
To
identify C&D material by packaging, labelling, storage, transportation and
disposal in accordance with statutory regulations.
Monitoring Schedule for the Coming Months
4.5
The tentative schedule for environmental monitoring
programme for August 2006 is shown in Appendix L.