10.1
The Environmental Monitoring and Audit
(EM&A) Report presents the EM&A works undertaken in November 2013 in accordance with
EM&A Manual.
10.2 No
Action/Limit Level exceedance was recorded for air
quality
(24-hr TSP) and construction noise.
10.3 For 1-hour TSP monitoring, no Action Level exceedance was recorded. One Limit Level exceedance was recorded on 18 November 2013.
10.4 According to the investigation, no dust
generation works was conducted at near the monitoring station during the
monitoring and observable dust source from construction activity under Contract
No. HY/2011/09 was observed. Therefore, the exceedance
is considered not due to the Contract.
10.5 For
water quality monitoring, there
are seven Action Level and six Limit Level exceedances
for suspended solids were recorded.
10.6 According to the investigation, no pollution
discharge was observed from the site. In addition, sediment plume due to
natural fluctuation of shallow water and localized plume in the monitoring area
were observed. Water quality mitigation measures such as casting and silt
curtain were also properly implemented. Therefore, the exceedances
are considered not due to the Contract.
10.7
Dolphin
transect survey was carried out on 6th and 15th
November 2013. No adverse impact on Chinese White Dolphins was noticeable from general observations.
10.8 Environmental
site inspection was conducted on 5th,
12th, 19th and 29th November 2013 by ET
in the reporting month.
All deficiencies identified
during the site inspection have already rectified / improved during the
follow-up audit session.
10.9 No inspection to the Sha Lo Wan (West) Archaeological Site was conducted in the reporting month.
10.10 There was one environmental complaint, no notification of summons and
successful prosecution received.
10.11 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.
10.12 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.