Appendix C -
Implementation Schedule of Environmental Mitigation Measures
EIA Ref. |
EM&A Log Ref |
Environmental Mitigation Measures |
Location |
Implementation Status |
Air Quality |
||||
S5.5.6.1 of HKBCFEIA |
A1 |
The contractor shall follow the procedures and requirements given in the
Air Pollution Control (Construction Dust) Regulation |
All construction
sites |
V |
S5.5.6.2 of HKBCFEIA
and S4.8.1 of TKCLKLEIA |
A2 |
Proper watering of exposed spoil should be undertaken throughout the
construction phase: ¡P
Any excavated or
stockpile of dusty material should be covered entirely by impervious sheeting
or sprayed with water to maintain the entire surface wet and then removed or
backfilled or reinstated where practicable within 24 hours of the excavation
or unloading; ¡P
Any dusty materials
remaining after a stockpile is removed should be wetted with water and
cleared from the surface of roads; ¡P
A stockpile of dusty
material should not be extend beyond the pedestrian barriers, fencing or
traffic cones. ¡P
Where practicable,
vehicle washing facilities with high pressure water jet should be provided at
every discernible or designated vehicle exit point. The area where vehicle
washing takes place and the road section between the washing facilities and
the exit point should be paved with concrete, bituminous materials or hardcores; ¡P
When there are open
excavation and reinstatement works, hoarding of not less than 2.4m high
should be provided as far as practicable along the site boundary with
provision for public crossing. Good site practice shall also be adopted by
the Contractor to ensure the conditions of the hoardings are properly
maintained throughout the construction period; ¡P
The portion of any road
leading only to construction site that is within 30m of a vehicle entrance or
exit should be kept clear of dusty materials; ¡P
Surfaces where any
pneumatic or power-driven drilling, cutting, polishing or other mechanical
breaking operation takes place should be sprayed with water or a dust
suppression chemical continuously; ¡P
Any area that involves
demolition activities should be sprayed with water or a dust suppression
chemical immediately prior to, during and immediately after the activities so
as to maintain the entire surface wet; ¡P
Where a scaffolding is
erected around the perimeter of a building under construction, effective dust
screens, sheeting or netting should be provided to enclose the scaffolding
from the ground floor level of the building, or a canopy should be provided
from the first floor level up to the highest level of the scaffolding; ¡P
Any skip hoist for
material transport should be totally enclosed by impervious sheeting; ¡P
Every stock of more than
20 bags of cement or dry pulverised fuel ash (PFA) should be covered entirely
by impervious sheeting or placed in an area sheltered on the top and the 3
sides; ¡P
Cement or dry PFA
delivered in bulk should be stored in a closed silo fitted with an audible
high level alarm which is interlocked with the material filling line and no
overfilling is allowed; ¡P
All unpaved
roads/exposed area shall be watered which results in dust suppression by
forming moist cohesive films among the discrete grains of road surface
material. ¡P
No burning of debris or
other materials on the works areas is allowed; ¡P
Water spray shall be
used during the handling of fill material at the site and at active cuts,
excavation and fill sites where dust is likely to be created; ¡P
Open dropping heights
for excavated materials shall be controlled to a maximum height of 2m to
minimise the fugitive dust arising from unloading; ¡P
During transportation by
truck, materials shall not be loaded to a level higher than the side and tail
boards, and shall be dampened or covered before transport. Materials having the potential to
create dust shall not be loaded to a level higher than the side and tail
boards, and shall be covered by a clean tarpaulin. The tarpaulin shall be properly
secured and shall extend at least 300mm over the edges of the side and tail
boards; ¡P
Loading, unloading,
transfer, handling or storage of bulk cement or dry PFA should be carried out
in a totally enclosed system or facility, and any vent or exhaust should be
fitted with an effective fabric filter or equivalent air pollution control
system; and ¡P
Exposed earth should be
properly treated by compaction, turfing, hydroseeding, vegetation planting or sealing with latex,
vinyl, bitumen, shotcrete or other suitable surface stabiliser within six
months after the last construction activity on the construction site or part
of the construction site where the exposed earth lies. |
All construction
sites |
V |
S5.5.6.3 of HKBCFEIA
and S4.8.1 of TKCLKLEIA |
A3 |
The Contractor should undertake proper watering on all exposed spoil and
associated work areas (with at least 8 times per day) throughout the
construction phase. |
All construction
sites |
V |
S5.5.6.4 of HKBCFEIA
and S4.11 of TKCLKLEIA |
A4 |
Implement regular dust monitoring under EM&A programme during the
construction stage. |
Selected representative dust
monitoring station |
V |
S5.5.7.1 of HKBCFEIA |
A5 |
The following mitigation measures should be adopted to prevent fugitive
dust emissions for concrete batching plant: ¡P
Loading, unloading,
handling, transfer or storage of any dusty materials should be carried out in
totally enclosed system; ¡P
All dust-laden air or
waste gas generated by the process operations should be properly extracted
and vented to fabric filtering system to meet the emission limits for TSP; ¡P
Vents for all silos and
cement/ pulverised fuel ash (PFA) weighing scale should be fitted with fabric
filtering system; ¡P
The materials which may
generate airborne dusty emissions should be wetted by water spray system; ¡P
All receiving hoppers
should be enclosed on three sides up to 3m above unloading point; ¡P
All conveyor transfer
points should be totally enclosed; ¡P
All access and route
roads within the premises should be paved and wetted; and ¡P
Vehicle cleaning
facilities should be provided and used by all concrete trucks before leaving
the premises to wash off any dust on the wheels and/or body. |
All construction
sites |
N/A |
S5.5.2.7 of HKBCFEIA |
A6 |
The following mitigation measures should be adopted to prevent fugitive dust emissions at barging point: ¡P
All road surface within
the barging facilities will be paved; ¡P
Dust enclosures will be
provided for the loading ramp; ¡P
Vehicles will be
required to pass through designated wheels wash facilities; and ¡P
Continuous water spray
at the loading points. |
All construction
sites |
N/A (Construction in
process) |
Construction Noise (Air borne) |
||||
S6.4.10 of HKBCFEIA |
N1 |
Use of good site practices to limit noise emissions by considering the
following: ¡P
only well-maintained
plant should be operated on-site and plant should be serviced regularly
during the construction programme; ¡P
machines and plant (such
as trucks, cranes) that may be in intermittent use should be shut down
between work periods or should be throttled down to a minimum; ¡P
plant known to emit
noise strongly in one direction, where possible, be orientated so that the
noise is directed away from nearby NSRs; ¡P
silencers or mufflers on
construction equipment should be properly fitted and maintained during the
construction works; ¡P
mobile plant should be
sited as far away from NSRs as possible and practicable; ¡P
material stockpiles, mobile container site officer and other structures should
be effectively utilised, where practicable, to screen noise from on-site
construction activities. |
All construction
sites |
V |
S6.4.11 of HKBCFEIA |
N2 |
Install temporary hoarding located on the site boundaries between noisy
construction activities and NSRs. The conditions of the hoardings shall be
properly maintained throughout the construction period. |
All construction
sites |
V |
S6.4.12 of HKBCFEIA |
N3 |
Install movable noise barriers (typically density @14kg/m2), acoustic mat or full enclosure close to noisy plants
including air compressor, generators, saw. |
For plant items
listed in Appendix 6D of the
EIA report at all construction sites |
N/A |
S6.4.13 of HKBCFEIA |
N4 |
Select ¡§Quiet plants¡¨ which comply with the BS 5228 Part 1 or TM
standards. |
For plant items
listed in Appendix 6D of the
EIA report at all construction sites |
V |
S6.4.14 of HKBCFEIA |
N5 |
Sequencing operation of construction plants where practicable. |
All construction
sites where practicable |
V |
S5.1 of TMCLKLEIA |
N6 |
Implement a noise monitoring under EM&A programme. |
Selected representative noise
monitoring station |
V |
Waste Management (Construction Waste) |
||||
S12.6 of TMCLKLEIA |
WM1 |
The
Contractor shall identify a coordinator for the management of waste. |
All construction
sites |
V |
S12.6 of TMCLKLEIA |
WM2 |
The Contractor shall apply for and obtain the appropriate
licenses for the disposal of public fill, chemical waste and effluent
discharges. |
All construction
sites |
V |
S12.6 of TMCLKLEIA |
WM3 |
EM&A of waste handling, storage, transportation,
disposal procedures and documentation through the site audit programme shall
be undertaken. |
All construction
sites |
V |
S8.3.8 of HKBCFEIA
and S12.6 of TMCLKLEIA |
WM4 |
Construction and Demolition Material The
following mitigation measures should be implemented in handling the waste: ¡P
Maintain temporary
stockpiles and reuse excavated fill material for backfilling and
reinstatement; ¡P
Carry out on-site
sorting; ¡P
Make provisions in the
Contract documents to allow and promote the use of recycled aggregates where
appropriate; ¡P
Adopt ¡¥Selective
Demolition¡¦ technique to demolish the existing structures and facilities with
a view to recovering broken concrete effectively for recycling purpose, where
possible; ¡P
Implement a trip-ticket
system for each works contract to ensure that the disposal of C&D
materials are properly documented and verified; ¡P
Implement an enhanced
Waste Management Plan similar to ETWBTC (Works) No. 19/2005 ¡V ¡§Environmental
Management on Construction Sites¡¨ to encourage on-site sorting of C&D
materials and to minimize their generation during the course of construction;
¡P
In addition, disposal of
the C&D materials onto any sensitive locations such as agricultural
lands, etc. should be avoided. The Contractor shall propose the final
disposal sites to the Project Proponent and get its approval before
implementation; and ¡P
The surplus surcharge
should be transferred to a fill bank. |
All construction
sites |
V |
S8.3.9- S8.3.11 of
HKBCFEIA and S12.6 of TMCLKLEIA |
WM5 |
C&D
Waste ¡P
Standard formwork or
pre-fabrication should be used as far as practicable in order to minimise the
arising of C&D materials. The use of more durable formwork or plastic
facing for the construction works should be considered. Use of wooden
hoardings should not be used, as in other projects. Metal hoarding and falsework should be
used to enhance the possibility of recycling. The purchasing of construction
materials will be carefully planned in order to avoid over ordering and
wastage. ¡P
The Contractor should
recycle as much of the C&D materials as possible on-site. Public fill and
C&D waste should be segregated and stored in different containers or
skips to enhance reuse or recycling of materials and their proper disposal.
Where practicable, concrete and masonry can be crushed and used as fill.
Steel reinforcement bar can be used by scrap steel mills. Different areas of
the sites should be considered for such segregation and storage. |
All construction
sites |
V |
S8.2.12- S8.3.15 of
HKBCFEIA and S12.6 of TMCLKLEIA |
WM6 |
Chemical
Waste ¡P
Chemical waste that is
produced, as defined by Schedule 1 of the Waste Disposal (Chemical Waste)
(General) Regulation, should be handled in accordance with the Code of
Practice on the Packaging, Labelling and Storage of Chemical Wastes. ¡P
Containers used for the
storage of chemical wastes should be suitable for the substance they are
holding, resistant to corrosion, maintained in a good condition, and securely
closed; have a capacity of less than 450 liters unless the specification has
been approved by the EPD; and display a label in English and Chinese in
accordance with instructions prescribed in Schedule 2 of the regulation. ¡P
The storage area for
chemical wastes should be clearly labelled and used solely for the storage of
chemical waste; enclosed on at least 3 sides; have an impermeable floor and bunding of sufficient capacity to accommodate 110% of the
volume of the largest container or 20 % of the total volume of waste stored
in that area, whichever is the greatest; have adequate ventilation; covered
to prevent rainfall entering; and arranged so that incompatible materials are
adequately separated. ¡P
Disposal of chemical
waste should be via a licensed waste collector; be to a facility licensed to
receive chemical waste, such as the Chemical Waste Treatment Centre which
also offers a chemical waste collection service and can supply the necessary
storage containers; or be to a reuser of the waste,
under approval from the EPD. |
All construction
sites |
V |
S8.3.16 of HKBCFEIA
and S12.6 of TMCLKLEIA |
WM7 |
Sewage ¡P
Adequate numbers of
portable toilets should be provided for the workers. The portable toilets
should be maintained in a state, which will not deter the workers from
utilizing these portable toilets. Night soil should be collected by licensed
collectors regularly. |
All construction
sites |
V |
S8.3.17 of HKBCFEIA
and S12.6 of TMCLKLEIA |
WM8 |
General
Refuse ¡P
The site and
surroundings shall be kept tidy and litter free. General refuse generated
on-site should be stored in enclosed bins or compaction units separately from
construction and chemical wastes. ¡P
A reputable waste
collector should be employed by the Contractor to remove general refuse from
the site, separately from construction and chemical wastes, on a daily basis
to minimize odour, pest and litter impacts. Burning of refuse on construction
sites is prohibited by law. ¡P
Aluminium cans are often
recovered from the waste stream by individual collectors if they are
segregated and made easily accessible. Separate labelled bins for their
deposit should be provided if feasible. ¡P
Office wastes can be
reduced through the recycling of paper if volumes are large enough to warrant
collection. Participation in a local collection scheme should be considered
by the Contractor. In addition, waste separation facilities for paper,
aluminum cans, plastic bottles etc., should be provided. ¡P
Training should be
provided to workers about the concepts of site cleanliness and appropriate
waste management procedure, including reduction, reuse and recycling of
wastes. ¡P
Sufficient dustbins shall be provided for storage of waste
as required under the Public Cleansing and Prevention of Nuisances
By-laws. In addition, general
refuse shall be cleared daily and shall be disposed of to the nearest
licensed landfill or refuse transfer station. ¡P
All waste containers
shall be in a secure area on hardstanding. |
All construction
sites |
V |
Water Quality (Construction Phase) |
||||
|
W1 |
Mitigation during the marine works
to reduce impacts to within acceptable levels have been recommended and will
comprise a series of measures that restrict the method and sequencing of
backfilling, as well as protection measures. Details of the measures are
provided below: ¡P
Reclamation filling for
the Project shall not proceed until at least 200m of leading seawall at the reclamation
area formed above +2.2mPD, unless otherwise agreement was obtained from EPD,
except for the 300m gaps for marine access. All underwater filling works
shall be carried out behind seawalls to avoid dispersion of suspended solids
outside the Project limit; ¡P
Except for the filling
of the cellular structures, not more than 15% public fill shall be used for
reclamation filling below +2.5mPD during construction of the seawall; ¡P
After the seawall is
completed except for the 300m marine access as indicated in the EPs, not more
than 30% public fill shall be used for reclamation filling below +2.5mPD,
unless otherwise agreement from EPD was obtained; ¡P
Upon completion of 200m
leading seawall, no more than a total of 60 filling barge trips per day shall
be made with a cumulative maximum daily filling rate of 60,000 m3 for HKBCF
and TMCLKL southern landfall reclamation during the filling operation; and ¡P
Upon completion of the
whole section of seawall except for the 300m marine access as indicated in
the EPs, no more than a total of 190 filling barge trips per day shall be
made with a cumulative maximum
daily filling rate of 190,000 m3 for the remaining filling operations for
HKBCF and TMCLKL southern landfall reclamation. ¡P
Floating type perimeter
silt curtains shall be around the HKBCF site before the commencement of
marine works. Staggered layers of silt curtain shall be provided to prevent
sediment loss at navigation accesses. The length of each staggered layers
shall be at least 200m; ¡P
Single layer silt
curtain to be applied around the North-east airport water intake; ¡P
The silt-curtains should
be maintained in good condition to ensure the sediment plume generated from
filling be confined effectively within the site boundary; ¡P
The filling works shall
be scheduled to spread the works evenly over a working day; ¡P
Cellular structure shall
be used for seawall construction; ¡P
A layer of geotextile
shall be placed on top of the seabed before any filling activities take place
inside the cellular structures to form the seawall; ¡P
The conveyor belts shall
be fitted with windboards and conveyor release
points shall be covered with curtain to prevent any spillage of filling
materials onto the surrounding waters; and ¡P
An additional layer of
silt curtain shall be installed near the active stone column installation
points. A layer of geotextile with stone blanket on top shall be placed on
the seabed prior to stone column installation works. |
During filling |
V |
S9.11.1.3 of HKBCFEIA and S6.10 of TMCLKLEIA |
W2 |
Land Works General construction activities on land should also be governed by
standard good working practice.
Specific measures to be
written into the works contracts should include: ¡P
wastewater from
temporary site facilities should be controlled to prevent direct discharge to
surface or marine waters; ¡P
sewage effluent and discharges from on-site kitchen facilities shall be directed to
Government sewer in accordance
with the requirements of the WPCO or collected for disposal offsite. The use of soakaways shall be avoided; ¡P
storm drainage shall be directed to storm drains via adequately designed
sand/silt removal facilities such as sand traps, silt traps and sediment basins. Channels, earth bunds or sand bag barriers should be provided on
site to properly direct stormwater to such silt
removal facilities. Catchpits and perimeter channels should be constructed in
advance of site formation works
and earthworks; ¡P
silt removal facilities,
channels and manholes shall be maintained and any deposited silt and grit shall be removed regularly, including specifically at
the onset of and after each rainstorm; ¡P
temporary access roads
should be surfaced with crushed stone or gravel; ¡P
rainwater pumped out
from trenches or foundation
excavations should be discharged into storm drains via silt removal
facilities; ¡P
measures should be taken
to prevent the washout of construction materials, soil, silt or debris into
any drainage system; ¡P
open stockpiles of construction materials (e.g. aggregates and sand) on site should be
covered with tarpaulin or similar
fabric during rainstorms; ¡P
manholes (including any
newly constructed ones) should always be adequately covered and temporarily
sealed so as to prevent silt, construction materials or debris from getting
into the drainage system,
and to prevent storm run-off from getting into foul sewers; ¡P
discharges of surface
run-off into foul sewers must
always be prevented
in order not to unduly overload the foul sewerage system; ¡P
all vehicles and plant should be cleaned before they leave the construction
site to ensure that no earth, mud or debris is deposited by them on roads. A
wheel washing bay should be provided at every site exit; ¡P
wheel wash overflow
shall be directed to silt removal facilities before being discharged to the
storm drain; ¡P
the section of
construction road between the wheel washing bay and the public road should be
surfaced with crushed stone or coarse gravel; ¡P
wastewater generated
from concreting, plastering, internal decoration, cleaning work and other
similar activities, shall be screened to remove large objects; ¡P
vehicle and plant servicing areas, vehicle wash bays and lubrication facilities
shall be located under roofed areas. The drainage in these covered areas
shall be connected to foul sewers via a petrol interceptor in accordance with
the requirements of the WPCO or collected for offsite disposal; ¡P
the contractors shall
prepare an oil / chemical cleanup plan and ensure that leakages or spillages
are contained and cleaned up immediately; ¡P
waste oil should be
collected and stored for recycling or disposal, in accordance with the Waste
Disposal Ordinance; ¡P
all fuel tanks
and chemical storage areas should be provided with locks and be sited on
sealed areas. The storage areas should be surrounded by bunds with a capacity
equal to 110% of the storage capacity of the largest tank; and ¡P
surface run-off from bunded areas should pass through
oil/grease traps prior to discharge to the storm water system.. |
All
land-based construction sites |
V |
S9.14 of HKBCFEIA and S6.10 of TMCLKLEIA |
W3 |
Implement a water quality monitoring programme |
At identified monitoring location |
V |
S6.10 of TMCLKLEIA |
W4 |
All construction works shall be subject to routine audit
to ensure implementation of all EIA recommendations and good working
practice. |
All construction site
areas |
V |
Ecology (Construction Phase) |
||||
S10.7 of HKBCFEIA and
S8.14 of TMCLKLEIA |
E1 |
¡P
Install silt curtain
during the construction ¡P
Limit works fronts ¡P
Construct seawall prior
to reclamation filling where practicable ¡P
Good site practices ¡P
Strict enforcement of no
marine dumping ¡P
Site runoff control ¡P
Spill response plan |
Seawall, reclamation area |
V |
S10.7 of HKBCFEIA |
E2 |
¡P
Watering to reduce dust generation;
prevention of siltation of freshwater habitats; Site runoff should be
desilted, to reduce the potential for suspended sediments, organics and other
contaminants to enter streams and standing freshwater. |
Land-based works areas |
V |
S10.7 of HKBCFEIA and
S8.14 of TMCLKLEIA |
E3 |
¡P Good site practices,
including strictly following the permitted works hours, using quieter
machines where practicable, and avoiding excessive lightings during night
time. |
Land-based works areas |
V |
S10.7 of HKBCFEIA and
S8.14 of TMCLKLEIA |
E4 |
¡P Dolphin
Exclusion Zone ¡P Dolphin
watching plan |
Marine works |
V |
S10.7 of HKBCFEIA and
S8.14 of TMCLKLEIA |
E5 |
¡P Decouple
compressors and other equipment on working vessels ¡P Proposal
on design and implementation of acoustic decoupling measures applied during
reclamation works ¡P Avoidance
of percussive piling |
Marine works |
V |
S10.7 of HKBCFEIA and
S8.14 of TMCLKLEIA |
E6 |
¡P Control
vessel speed ¡P Skipper
training ¡P Predefined
and regular routes for working vessels; avoid Brothers Islands |
Marine traffic |
V |
S10.10 of HKBCFEIA
and S8.14 of TMCLKLEIA |
E7 |
¡P Vessel
based dolphin monitoring |
Northeast and
Northwest Lantau |
V |
Fisheries |
||||
S11.7 of HKBCFEIA |
F1 |
¡P Reduce
re-suspension of sediments ¡P Limit
works fronts ¡P Good site
practices ¡P Strict
enforcement of no marine dumping ¡P
Spill response plan |
Seawall, reclamation area |
V |
S11.7 of HKBCFEIA |
F2 |
¡P Install
silt-grease trap in the drainage system collecting surface runoff |
Reclamation area |
V |
Landscape & Visual (Construction Phase) |
||||
S14.3.3. 3 of
HKBCFEIA and S10.9 of TMCLKLEIA |
LV1 |
Mitigate
Landscape Impacts G1/CM4 Grass-hydroseed or sheeting bare soil surface and stock pile
areas. G9 Reserve
of loose natural granite rocks for re-use. Provide new coastline to
adopt ¡§natural-look¡¨ by means of using armour rocks in the form of natural
rock materials and planting strip area accommodating screen buffer to enhance
¡§natural-look¡¨ of new coastline. |
All construction site
areas |
N/A |
S10.9 of TMCLKLEIA |
LV2 |
Mitigate
Landscape Impacts CM7 Ensure no run-off
into water body adjacent to the Project Area. |
All construction site
areas |
V |
S14.3.3. 3 of
HKBCFEIA |
LV4 |
Mitigate
Visual Impacts V1 Minimize
time for construction activities during construction period. |
All construction site
areas |
V |
S10.9 of TMCLKLEIA |
LV5 |
Mitigate
Visual Impacts CM6 Control night-time
lighting and glare by hooding all lights. |
All construction site
areas |
V |
EM&A |
||||
S15.2.2 of HKBCFEIA |
EM1 |
An Independent Environmental Checker needs to be employed
as per the EM&A Manual. |
All construction site
areas |
V |
S15.5 - S15.6 of HKBCFEIA |
EM2 |
¡P
An Environmental Team
needs to be employed as per the EM&A Manual. ¡P
Prepare a systematic
Environmental Management Plan to ensure effective implementation of the
mitigation measures. ¡P
An environmental impact
monitoring needs to be implementing by the Environmental Team to ensure all
the requirements given in the EM&A Manual are fully complied with. |
All construction site
areas |
V |
Legend:
V = implemented;
x = not implemented;
N/A = not applicable