10.1
The Environmental Monitoring and Audit
(EM&A) Report presents the EM&A works undertaken in September 2014 in accordance with
EM&A Manual.
10.2 No
Action/Limit Level exceedance was recorded for air
quality
and construction noise.
10.3
For
water quality monitoring, there are eleven Action Level and thirteen Limit
Level exceedances for suspended solids were recorded.
In addition, no Action/Limit Level exceedance for
dissolved oxygen and turbidity were recorded.
10.4
According
to the investigation, the exceedances are considered
not due to the Contract due to the following reasons:
1)
No
pollution discharge was observed from the site;
2)
The sea
conditions were rough. Localized plumes due to natural fluctuation were
observed in the monitoring area;
3)
Sediment
plume due to natural fluctuation of shallow water and movement of vessel;
4)
Sediment
plume discharging to the monitoring stations from the area outside the site
boundary;
5)
Adverse
water quality outside the site boundary; and
6)
The
major marine construction works (e.g. bored piling works) has not been
commenced.
10.5
Dolphin
transect survey was carried out on 10th and
23rd September 2014. 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 1st and 5th September 2014.
10.7 Environmental
site inspection was conducted on 2nd,
10th, 17th, 26th and 30th September
2014 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 30th
September 2014.
No access
to Sha Lo Wan (West) Archaeological site for works
areas and storage of construction equipment was observed.
10.9 There
were no environmental complaint,
notification of summons and successful prosecution received.
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.