10.1 The Environmental Monitoring and Audit (EM&A) Report presents the EM&A works undertaken in January 2014 in accordance with EM&A Manual.
10.2 No Action/Limit Level exceedance was recorded for air quality (1-hr TSP) and construction noise.
10.3 For 24-hour TSP monitoring, no Limit Level exceedance was recorded. One Action Level exceedance was recorded at AMS1 on 20 January 2014.
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. In addition, construction works from other site and stockpile
of dusty materials without proper cover at near the monitoring station was
observed. Therefore, the exceedance is considered not
due to the Contract.
10.5
For
water quality monitoring, there are seven Action Level and fourteen Limit Level
exceedances for suspended solids were recorded. In
addition, there are four Action Level and six Limit Level exceedances
for turbidity were recorded.
10.6
According
to the investigation, no pollution discharge was observed from the site. In
addition, adverse water quality outside the site boundary was observed.
Sediment plume and floating wastes discharging to the monitoring stations from
the area outside the site boundary was also observed. Routine marine
construction works was conducted as usual and water quality mitigation measures
such as casing and silt curtains were properly implemented. Therefore, the exceedances are considered not due to the Contract.
10.7
Dolphin
transect survey was carried out on 3rd and 24th
January 2014. No adverse impact on Chinese White Dolphins was noticeable from general observations.
10.8
Two
days of additional Land-based Dolphin Behaviour
and Movement Monitoring was
conducted on 22nd and 27th January 2014 in the reporting
month. Monitoring Results
and analysis will be presented in a separate report
10.9 Environmental site inspection was conducted on 7th, 14th, 21st and 28th January 2014 by ET in the reporting month. All deficiencies identified during the site inspection have already rectified / improved during the follow-up audit session.
10.10 No inspection to the Sha Lo Wan (West) Archaeological Site was conducted in the reporting month.
10.11 There were two environmental complaints, no notification of summons and successful prosecution received.
10.12 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.
10.13 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 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.