10.1 The Environmental Monitoring and Audit (EM&A) Report presents the EM&A works undertaken in December 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 one Action Level and one 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 as sediment plume discharging to the monitoring stations from
the area outside the site boundary was observed and the exceeded result was
within the ranges baseline monitoring results.
10.5 Dolphin transect survey was carried out on 3rd and 10th December 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 5th and 18th December 2014.
10.7 Environmental site inspection was conducted on 2nd, 9th, 16th, 23rd and 30th December 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 December 2014. No access to Sha Lo Wan (West) Archaeological site for works areas and storage of construction equipment was observed.
10.9 There were three environmental complaints, 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.