10.1 The Environmental Monitoring and Audit (EM&A) Report presents the EM&A works undertaken in April 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 six Action Level and one Limit Level exceedances for suspended solids were recorded. No
Action/Limit Level exceedances for dissolved oxygen
and turbidity were recorded.
10.4
According
to the investigation, no pollution discharge was observed from the site. In
addition, sediment plume due to natural fluctuation of shallow water and
discharging from the area outside the site boundary to the
monitoring station were observed. In addition, some of the exceeded results were similar or within
the ranges baseline monitoring results. Therefore, the exceedances
are considered not due to the Contract.
10.5
Dolphin
transect survey was carried out on 15th and
23rd April 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 16th and 25th April 2014.
10.7 Environmental site inspection was conducted on 4th, 8th, 15th, 25th and 29th April 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 No inspection to the Sha Lo Wan (West) Archaeological Site was conducted in the reporting month.
10.9 There were one environmental complaint, no 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.