8.1
All 1-hour and 24-hour TSP levels complied with the action and limit levels
in the reporting months.
8.2
All the daytime construction noise levels complied with limit level in
the reporting month.
8.3
Marine water quality monitoring continued in the reporting month. A
total of thirteen monitoring sessions were conducted in which 68 exceedances were recorded. All exceedances
were considered not related to the Project. Interim notification of exceedance was issued for each exceedance
event.
8.4
Environmental site inspections were conducted 4 times in the reporting
month. Remedial measures were advised for those deficiencies observed for the
Contractor to follow-up.
8.5
Two landscape site audits were conducted in the reporting month. The
Contractor protected most exposed slopes/surfaces by hydroseeding,
shotcreting and tarpaulin sheeting. Some hydroseeding previously
covered by dust generated from soil nail installation did not germinate
satisfactorily. 2 retained trees outside
Rhine Terrace were suspected to be dead after removal of rock fall fence. Remedial
measures were advised for those deficiencies observed for the Contractor to
follow-up. Exposed slope surface at
8.6
No new environmental permit and licence was applied or obtained in the
reporting month.
8.7
No environmental complaint, notification of summons and prosecution was
received in the reporting month.
8.8
According to the environmental site inspections performed in the
reporting month, the following recommendations were provided:
Air Quality
·
Provide proper maintenance for the PME to avoid emission of
dark smoke;
·
Install proper wheel washing bays and ensure all vehicles
leaving the site be sufficiently cleaned;
·
Provide continuous water spraying for the rock breaking
activities;
·
Maintain tarpaulin coverage on 3 sides and on the top
during soil nail installation.
·
Cover the exposed slopes/surfaces by hydroseeding,
shotcreting or tarpaulin cover; and
·
Ensure tarpaulin cover for truckloads and excavated material.
Construction Noise
·
Schedule the noisy construction operation close to the
NSR.
·
Display NEL for air compressor;
·
Use silent equipment; and
·
Throttle down idle equipment.
Water Quality
· Provide, operate and maintain wastewater treatment systems regularly;
·
Reuse wastewater after proper treatment, especially for bore
piling and site investigation;
·
Provide sufficient wastewater treatment prior to discharge;
·
Proper maintenance of drainage system;
·
Regular inspect and clean up surface channels and
sedimentation tanks; and
·
Maintain low-lying works areas regularly.
Chemical and Waste Management
· Remove waste materials from the site to avoid accumulation regularly;
·
Provide sufficient maintenance for all the equipment to avoid
dripping of diesel;
·
Provide drip trays with sufficient capacity for diesel drums
and chemical containers;
·
Provide sufficient and adequate notices or warning signs on
site to alert site personnel on the waste and chemical disposal requirements;
·
Instigate vigilant staff patrol, if deemed necessary, to spot and
rectify problems immediately;
·
Properly maintain the chemical waste storage area
·
Place tarpaulin sheeting beneath the replaced equipment
parts to avoid seepage of oil on bare ground; and
·
Remove stagnant water ponds/Apply pesticides to prevent mosquito
breeding.
Landscape and Visual
· Erect hoarding and rock fall fence in accordance with agreed design at proper location;
·
Provide proper protection for the retain trees;
·
Protect the retain trees outside Golden Villa and Rhine
Terrace;
·
Conduct tree transplanting/felling in accordance with proper procedures;
and
·
Conduct regular landscape & visual site inspections to ensure tree
felling, retaining and transplanting following proper procedures.