6.1
The Quarterly Environmental Monitoring
and Audit (EM&A) Report presents the EM&A works undertaken in the period between 22nd
February and 31st May 2013 in accordance with EM&A
Manual.
6.2
No Action/Limit Level exceedance
was recorded for air quality and underwater noise.
6.3
For water quality monitoring, there are 17 Action Level exceedances
and 6 Limit Level exceedances were recorded for
dissolved oxygen. 30 Action Level exceedances and 101
Limit Level exceedances for turbidity were recorded.
22 Action exceedances and 92 Limit Level exceedances for suspended solids were recorded.
6.4
According
to the investigation, no major marine construction activities were conducted
during the monitoring period between 22 February and 19 March 2013. No
pollution discharge from the marine works and sediment plume due to natural
fluctuation of shallow water were observed. Therefore, all exceedances
are considered not due to the Contract.
6.5
One Action Level exceedance
was recorded for noise as one documented complaint was received to complaint the noise nuisance due to loading of metal
parts at barge near the seawall of Works Area WA6 early morning (around 8:45a.m)
on 18 May 2013 (Saturday) in the reporting
month. No Limit Level exceedance for noise was
recorded.
6.6
During this quarter of dolphin monitoring, no
adverse impact from the Contract on Chinese White Dolphins was noticeable from
general observations, and the dolphin occurrence in West Lantau
survey area remained the same as in the baseline period. No Action/Limit Level exceedance
was recorded in the reporting period.
6.7
Although the average dolphin encounter rates in the
present three-month study period were similar to the ones in the three-month
baseline monitoring period, the spatial occurrence of dolphins appeared to be
noticeably different between the two periods, with lower usage of the area to
the north of Tai O Peninsula (i.e. the vicinity of HKLR09 construction site)
during the present impact monitoring period.
6.8
Dolphin usage in West Lantau
waters should be continuously monitored, to examine whether such avoidance of
the northern portion of the study area by the dolphins will continue in the
upcoming quarters.
6.9
Environmental site inspection was conducted on 26th February 2013, 5th, 12th,
19th and 26th March 2013, 2nd, 9th,
16th, 26th and 30th April 2013, 7th, 14th, 21st
and 31st May 2013 by ET in the reporting month. All deficiencies identified during the site
inspection have already rectified / improved during the follow-up audit
session.
6.10 The
inspection to the Sha Lo Wan (West) Archaeological
Site was conducted on 25th March 2013. No access to Sha Lo
Wan (West) Archaeological site for works areas and storage of construction
equipment was observed.
6.11 There
were
four environmental complaints, no notification of summons and successful
prosecution received in
the reporting period.
6.12 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.
6.13 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 accidential
spillage of or other hazardours 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.