10.1
The Environmental Monitoring
and Audit (EM&A) Report presents the EM&A works undertaken in September 2015 in accordance with EM&A Manual.
10.2
No Action/Limit Level exceedance was recorded for air quality and
construction noise.
10.3
There are four Action Level and three Limit Level exceedances for suspended
solids were recorded. No Action/Limit Level exceedance for dissolved oxygen and
turbidity were recorded.
10.4
According to the investigation, no pollution discharge was observed from
the site. In addition, dispersion of sediment plume to the monitoring stations
from the area outside the site boundary (i.e. works area not under and related
to HY/2011/09) and sediment plume due to natural fluctuation of shallow water
were observed. Therefore, the exceedances are considered not due to the
Contract.
10.5
Dolphin
transect survey was carried out on 7th and 10th September 2015. No adverse impact on Chinese White Dolphins was noticeable from general
observations.
10.6
Two days of additional Land-based Dolphin
Behaviour and Movement Monitoring were conducted on 4th and 23rd
September 2015.
10.7
Environmental site inspection was
conducted on 1st, 8th, 15th, 22nd and 30th September
2015 by ET in the reporting month. All deficiencies identified during the site inspection have already
rectified / improved during the follow-up audit session.
10.8
The inspection to the Sha Lo
Wan (West) Archaeological Site was conducted on 21st September 2015.
No access to Sha Lo Wan (West) Archaeological site for works areas and storage
of construction equipment was observed.
10.9
There was no environmental
complaint, no notification of summons and successful prosecution
received in the reporting month.
10.10 The ET will keep track on the EM&A programme to ensure
compliance of environmental requirements and the proper implementation of all
necessary mitigation measures.
10.11 According to the environmental audit performed in the reporting month,
the following recommendations were made:
Air Quality Impact
·
To
regularly maintain the quality of machinery and vehicles on site.
·
To
implement dust suppression measures on all haul roads, stockpiles, dry surfaces
and excavation works.
·
To provide hoarding along the entire length of that
portion of the site boundary.
Noise Impact
·
To
inspect the noise sources inside the site.
·
To
space out noisy equipment and position the equipment as far away as possible
from sensitive receivers.
·
To
provide temporary noise barriers for operations of noisy equipment near the
noise sensitive receivers, if necessary.
Water Impact
·
To prevent any surface runoff
discharge into any stream course and sea.
·
To review and implement
temporary drainage system.
·
To identify any wastewater
discharges from site.
·
To ensure properly maintenance
for de-silting facilities.
·
To clear the silt and sediment
in the sedimentation tanks.
·
To review the capacity of
de-silting facilities for discharge.
·
To divert all the water
generated from construction site to de-silting facilities with enough handling
capacity before discharge.
·
To avoid accumulation of stagnant and ponding water on site.
Ecology Impact
·
To implement Spill Response Plan in the event of accidental
spillage of or other hazardous chemicals.
·
To implement Dolphin Exclusion Zone during the installation of
bored pile casing located in the waters to the west of Airport.
·
To implement Dolphin Watching Plan after the bored piling casing
is installed.
·
To ensure the acoustically-decoupled measures were implemented for air
compressors and other noisy equipment mounted on construction vessels according
to acoustic decoupling measures plan.
Waste/Chemical Management
·
To
check for any accumulation of waste materials or rubbish on site.
·
To ensure the performance of sorting of C&D
materials at source (during generation);
·
To carry out inspection of dump truck at site exit
to ensure inert and non-inert C&D materials are properly segregated before
removing off site.
·
To
avoid any discharge or accidental spillage of chemical waste or oil directly from the
site.
·
To
avoid improper handling or storage of oil drum on site.