Table 12.1 Implementation
Schedule of Mitigation Measures
|
EIA Ref. |
Recommeded Mitigation Measures |
Location of the Measures |
Implementation Agent |
Implementation Stage(1) |
Relevant Legislation and Guidelines |
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Des |
C |
O |
Dec |
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Air Quality Impact (Construction Phase) |
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|
4.7.1 |
Hourly watering with intensity of 0.0455 L/m2 (tentatively) on the active construction area so as to achieve a dust removal efficiency of 87.5%. |
Active works areas |
CEDD/Contractor |
|
ü |
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EIAO-TM, AQOs |
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4.7.2 |
Ÿ
To minimize the dust impact to the surrounding ASRs, dust suppression
measures stipulated in the Air Pollution Control (Construction Dust)
Regulation should be incorporated to control dust emission from the
site. Major control measures relevant
to this Project are listed below, and they are recommended to be included in
relevant contract documents.
-
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;
-
Any
dusty material remaining after a stockpile is removed should be wetted with
water and cleared from the surface of roads;
-
A
stockpile of dusty material should not extend beyond the pedestrian barriers,
fencing or traffic cones;
-
The
load of dusty materials on a vehicles leaving a construction site should be
covered entirely by impervious sheeting to ensure that the dusty materials do
not leak form the vehicle;
-
Where
practicable, vehicles washing facilities including a 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;
-
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;
-
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;
-
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;
-
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;
-
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;
-
Any
skip hoist for material transport should be totally enclosed by impervious
sheeting;
-
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 three sides;
-
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; and
-
Exposed
earth should be properly treated by compaction, turfing,
hydroseeding, vegetation planting or sealing with
latex, vinyl, bitumen, shortcrete 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.
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All works areas |
CEDD/Contractor |
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ü |
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Air Pollution Control (Construction Dust) Regulation |
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Air Quality Impact (Operational Phase) |
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N/A |
N/A |
N/A |
N/A |
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N/A |
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|
Noise Impact (Construction Phase) |
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|
5.8.1 – 5.8.4 |
Adoption of Quiet PMEs Ÿ
To reduce the noise impacts at the affected NSRs
during normal daytime working hours, mitigation measures such as adopting
quiet PME and construction noise barriers are recommended.
Construction Noise Barriers Ÿ To alleviate
the construction noise impact on the affected NSRs, construction noise
barriers or enclosures would be erected to provide screening from the
construction plant.
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All works areas |
CEDD/Contractor |
|
ü |
|
|
EIAO-TM |
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|
Noise Impact (Operational Phase) |
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|
5.8.5 |
Direct mitigation measures in the form of
Vertical Noise Barriers, Cantilevered Noise Barriers, Semi-Enclosures and
Full Enclosures are proposed on the Project Roads such that the noise level
would be reduced to fulfil the EIAO requirements for RIW sites at: Ÿ
Sau Mau Ping Road and Lin Tak Road,
Ÿ
J/O Clear Water Bay Road and On Sau Road and
Ÿ
New Clear Water Bay Road and Shun Lee Tsuen Road
Ÿ
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Project roads |
CEDD/Contractor |
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ü |
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EIAO-TM |
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Water Quality Impact (Construction Phase) |
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|
6.9.1 - 6.9.13 |
Construction Site Run-off and General
Construction Activities Boring and Drilling Water Ÿ
Water used in ground boring and drilling for site
investigation or rock / soil anchoring should as far as practicable be re-circulated after sedimentation. When
there is a need for final disposal, the wastewater should be discharged into
storm drains via silt removal facilities.
Wheel Washing Water Ÿ
All vehicles and plant should be cleaned before
they leave a construction site to minimize the deposition of earth, mud,
debris on roads. A wheel washing bay should be provided at every site exit if
practicable and wash-water should have sand and silt settled out or removed
before discharging into storm drains. The section of construction road between
the wheel washing bay and the public road should be paved with backfill to
reduce vehicle tracking of soil and to prevent site run-off from entering
public road drains.
Rubbish and Litter Ÿ Good site practices should be adopted to
remove rubbish and litter from construction sites so as to prevent the
rubbish and litter from spreading from the site area. It is recommended to
clean the construction sites on a regular basis.
Construction Site Run-off Ÿ
The site practices outlined in ProPECC PN 1/94
“Construction Site Drainage” should be followed as far as practicable to
minimise surface run-off and the chance of erosion. The following measures are recommended to
protect water quality and sensitive uses of the coastal area, and when
properly implemented should be sufficient to adequately control site
discharges so as to avoid water quality impact.
Ÿ
Surface run-off from construction sites should be
discharged into storm drains via adequately designed sand/silt removal facilities such as sand
traps, silt traps and sedimentation basins. Channels or earth bunds or sand
bag barriers should be provided on site to properly direct stormwater to such
silt removal facilities. Perimeter channels at site boundaries should be
provided on site boundaries where necessary to intercept storm run-off from
outside the site so that it will not wash across the site. Catchpits and perimeter channels should be constructed in
advance of site formation works and earthworks.
Ÿ
Silt removal facilities, channels and manholes
should be maintained and the deposited silt and grit should be removed
regularly, at the onset of and after each rainstorm to prevent local
flooding. Any practical options for the diversion and re-alignment of drainage should comply with both
engineering and environmental requirements in order to provide adequate
hydraulic capacity of all drains. Minimum distance of 100m should be
maintained between the discharge points of construction site run-off and the
existing saltwater intakes. No effluent will be discharged into typhoon
shelter.
Ÿ
Construction works should be programmed to
minimize soil excavation works in rainy seasons (April to September). If
excavation in soil cannot be avoided in
these months or at any time of year when rainstorms are likely, for the
purpose of preventing soil erosion, temporary exposed slope surfaces should
be covered e.g. by tarpaulin, and temporary access roads should be protected
by crushed stone or gravel, as excavation proceeds. Intercepting channels
should be provided (e.g. along the crest / edge of excavation) to prevent
storm runoff from washing across exposed soil surfaces. Arrangements should
always be in place in such a way that adequate surface protection measures
can be safely carried out well before the arrival of a rainstorm.
Ÿ
Earthworks final surfaces should be well
compacted and the subsequent permanent work or surface protection should be
carried out immediately after the final surfaces are formed to prevent
erosion caused by rainstorms. Appropriate drainage like intercepting channels
should be provided where necessary.
Ÿ
Measures should be taken to minimize the ingress
of rainwater into trenches. If excavation of trenches in wet seasons is
necessary, they should be dug and backfilled in short sections. Rainwater
pumped out from trenches or foundation excavations should be discharged into
storm drains via silt removal facilities.
Ÿ
Construction materials (e.g. aggregates, sand and
fill material) on sites should be covered with tarpaulin or similar fabric
during rainstorms.
Ÿ
Manholes (including 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. Discharge of surface
run-off into foul sewers must always be prevented in order not to unduly
overload the foul sewerage system.
Ÿ
Good site practices should be adopted to remove
rubbish and litter from construction sites so as to prevent the rubbish and
litter from spreading from the site area. It is recommended to clean the
construction sites on a regular basis.
Site Effluent Ÿ There is a need to apply to EPD for a
discharge licence for discharge of effluent from the construction site under
the WPCO. The discharge quality must
meet the requirements specified in the discharge licence. All the runoff and wastewater generated
from the works areas should be treated so that it satisfies all the standards
listed in the TM-DSS. The beneficial
uses of the treated effluent for other on-site activities such as dust
suppression, wheel washing and general cleaning etc., can minimise water
consumption and reduce the effluent discharge volume. If monitoring of the treated effluent
quality from the works areas is required during the construction phase of the
Project, the monitoring should be carried out in accordance with the relevant
WPCO licence which is under the ambit of regional office (RO) of EPD.
|
All works areas |
CEDD/Contractor |
|
ü |
|
|
ProPECC PN 1/94 Construction Site Drainage TM-DSS Water Pollution Control Ordinance |
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|
6.9.14 - 6.9.16 |
Accidental
Spillage and Potential Contamination of Surface Water and Groundwater Ÿ Contractor must register as a chemical
waste producer if chemical wastes would be produced from the construction activities. The Waste Disposal Ordinance (Cap 354) and
its subsidiary regulations in particular the Waste Disposal (Chemical Waste)
(General) Regulation, should be observed and complied with for control of
chemical wastes.
Ÿ Any service shop and maintenance
facilities should be located on hard standings within a bunded
area, and sumps and oil interceptors should be provided. Maintenance of vehicles and equipment
involving activities with potential for leakage and spillage should only be
undertaken within the areas appropriately equipped to control these
discharges.
Ÿ Disposal of chemical wastes should be
carried out in compliance with the Waste Disposal Ordinance. The Code of Practice on the Packaging,
Labelling and Storage of Chemical Wastes published under the Waste Disposal
Ordinance details the requirements to deal with chemical wastes. General requirements are given as follows:
-
Suitable
containers should be used to hold the chemical wastes to avoid leakage or
spillage during storage, handling and transport;
-
Chemical
waste containers should be suitably labelled, to notify and warn the
personnel who are handling the wastes, to avoid accidents; and
-
Storage
area should be selected at a safe location on site and adequate space should
be allocated to the storage area.
|
All works areas |
CEDD/Contractor |
|
ü |
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|
Waste Disposal Ordinance Waste Disposal (Chemical Waste) (General) Regulation The Code of Practice on the Packaging, Labelling and
Storage of Chemical Wastes |
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|
6.9.17 - 6.9.18 |
Sewage
Effluent from Construction Workforce Ÿ The construction workforce on site will
generate sewage. It is recommended to
provide sufficient chemical toilets in the works areas. A licensed waste collector should be deployed
to clean the chemical toilets on a regular basis.
Ÿ Notices should be posted at conspicuous
locations to remind the workers not to discharge any sewage or wastewater
into the surrounding environment.
Regular environmental audit of the construction site will provide an
effective control of any malpractices and can encourage continual improvement
of environmental performance on site.
It is anticipated that sewage generation during the construction phase
of the project would not cause water pollution problem after undertaking all
required measures.
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All works areas |
CEDD/Contractor |
|
ü |
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Water Pollution Control Ordinance |
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|
6.9.19 |
Construction
Works in Close Proximity of Inland
Waters Ÿ The practices outlined in ETWB TC (Works)
No. 5/2005 “Protection of natural
streams/rivers from adverse impacts arising from construction works”
should also be adopted where applicable to minimize the water quality impacts
upon any natural streams or surface water systems. Relevant mitigation measures from the ETWB
TC (Works) No. 5/2005 are listed below:
-
Construction
works close to the inland waters should be carried out in dry season as far
as practicable where the flow in the surface channel or stream is low.
-
The
use of less or smaller construction plants may be specified in areas close to
the water courses to reduce the disturbance to the surface water.
-
Temporary
storage of materials (e.g. equipment, chemicals and fuel) and temporary
stockpile of construction materials should be located well away from any
water courses during carrying out of the construction works.
-
Stockpiling
of construction materials and dusty materials should be covered and located
away from any water courses.
-
Construction
debris and spoil should be covered up and/or disposed of as soon as possible
to avoid being washed into the nearby water receivers.
-
Proper
shoring may need to be erected in order to prevent soil or mud from slipping
into the watercourses.
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All works areas |
CEDD/Contractor |
|
ü |
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Water Pollution Control Ordinance |
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|
Water Quality Impact (Operational Phase) |
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|
6.9.20 - 6.9.23 |
Ÿ Best Management Practices (BMPs) to reduce
storm water and non-point source pollution have been proposed for the RIW as
follows:
Design
Measures Ÿ Exposed surface shall be avoided within
the RIW sites to minimize soil erosion. The development site shall be either
hard paved or covered by landscaping area where appropriate.
Ÿ The streams and channelized nullahs near
the RIW sites will be retained to maintain the original flow path. The
drainage system will be designed to avoid flooding.
Ÿ Green areas / tree / shrub planting etc.
will be introduced along roadside amenity strips and central dividers as far
as possible, which can help to reduce soil erosion.
Ÿ Evergreen trees species, which in general
generate relatively smaller amount of fallen leaves, should be selected where
possible.
Devices/
Facilities to Control Pollution Ÿ Screening facilities such as standard
gully grating and trash grille, with spacing which is capable of screening
off large substances such as fallen leaves and rubbish should be provided at
the inlet of drainage system.
Ÿ Road gullies with standard design and silt
traps and oil interceptors should be incorporated during the detailed design
to remove particles present in stormwater runoff, where appropriate.
Administrative
Measures Ÿ Good management measures such as regular
cleaning and sweeping of road surface/ open areas are suggested. The road
surface/ open area cleaning should also be carried out prior to occurrence
rainstorm.
Ÿ Manholes, as well as stormwater gullies,
ditches provided at the Project sites should be regularly inspected and
cleaned (e.g. monthly). Additional inspection and cleansing should be carried
out before forecast heavy rainfall.
|
All works areas |
CEDD/HyD |
ü |
|
ü |
|
Water Pollution Control Ordinance |
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Waste Management Implication (Construction Phase) |
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|
7.6.1 – 7.6.3 |
Good Site Practices Ÿ Appropriate waste handling, transportation
and disposal methods for all waste arising generated during the construction
works for the Project should be implemented to ensure that construction
wastes do not enter the nearby streams or drainage channel.
Ÿ It is anticipated that adverse impacts
would not arise on the construction site, provided that good site practices
are strictly followed. Recommendations
for good site practices during the construction activities include:
-
Nomination
of approved personnel, such as a site manager, to be responsible for good
site practices, and making arrangements for collection of all wastes
generated at the site and effective disposal to an appropriate facility.
-
Training of site personnel in proper waste management
and chemical waste handling procedures.
-
Provision of sufficient waste reception/ disposal
points, of a suitable vermin-proof design that minimises windblown litter.
-
Arrangement for regular collection of waste for
transport off-site and final disposal.
-
Appropriate measures to minimise windblown litter and
dust during transportation of waste by either covering trucks or by
transporting wastes in enclosed containers.
-
Regular
cleaning and maintenance programme for drainage systems, sumps and oil
interceptors.
-
A
recording system for the amount of wastes generated, recycled and disposed
(including the disposal sites) should be proposed.
-
A
Waste Management Plan should be prepared and should be submitted to the
Engineer for approval. One may make
reference to ETWB TCW No. 19/2005
for details.
Ÿ In order to monitor the disposal of
C&D materials at landfills and public filling areas, as appropriate, and
to control fly tipping, a trip-ticket system should be included as one of the
contractual requirements to be implemented by an Environmental Team
undertaking the Environmental Monitoring and Audit work. One may take
reference to DEVB TCW No.6/2010 for details.
|
All works areas |
CEDD/Contractor |
|
ü |
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Waste Disposal Ordinance DEVB TCW No. 6/2010, ETWB TCW No. 19/2005 |
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|
7.6.4 – 7.6.5 |
Waste Reduction Measures Ÿ Good management and control of
construction site activities/ processes can minimise the generation of waste.
Waste reduction is best achieved at the planning and design stage, as well as
by ensuring the implementation of good site practices. Recommendations to
achieve waste reduction include:
-
Segregate
and store different types of construction related waste in different
containers, skips or stockpiles to enhance reuse or recycling of materials
and their proper disposal.
-
Provide
separate labelled bins to segregate recyclable waste such as aluminium cans
from other general refuse generated by the work force, and to encourage
collection by individual collectors.
-
Any
unused chemicals or those with remaining functional capacity shall be
recycled.
-
Maximising the use of reusable steel formwork to
reduce the amount of C&D materials.
-
Prior
to disposal of C&D waste, it is recommended that wood, steel and other
metals shall be separated for re-use and / or recycling to minimise the quantity
of waste to be disposed of to landfill.
-
Adopt
proper storage and site practices to minimise the potential for damage to, or
contamination of, construction materials.
-
Plan
the delivery and stock of construction materials carefully to minimise the amount
of waste generated.
-
Minimize
over ordering of concrete, mortars and cement grout by doing careful check
before ordering.
Ÿ In addition to the above measures, other
specific mitigation measures are recommended below to minimise environmental
impacts during handling, transportation and disposal of wastes.
|
All works areas |
CEDD/Contractor |
ü |
ü |
|
|
Waste Disposal Ordinance ETWB TCW No. 19/2005 |
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|
7.6.6 – 7.6.8 |
Construction and Demolition Materials Ÿ The C&D materials generated from site
clearance, demolition of existing roads, slope excavation works, and
construction of new roads, retaining wall and piling works should be sorted
on-site into inert C&D materials (that is, public fill) and C&D waste.
To minimise the impact resulting from collection and
transportation of C&D materials as far as practicable. C&D
waste, such as wood, plastic, steel and other metals should be reused or
recycled and, as a last resort, disposed to landfill. A suitable area should
be designated within the site for temporary stockpiling of C&D materials
and to facilitate the sorting process. Within the stockpile areas, the
following measures should be taken to control potential environmental impacts
or nuisance:
-
Waste
such as soil should be handled and stored well to ensure secure containment;
-
Covering
material during heavy rainfall;
-
Stockpiling
area should be provided with covers and water spraying system to prevent
materials from wind-blown or being washed away;
-
Locating
stockpiles to minimise potential visual impacts; and
-
Minimising land intake of stockpile areas as far as
possible.
General Refuse Ÿ General refuse should be stored in
enclosed bins or compaction units separate from C&D materials. A reputable waste collector should be
employed by the contractor to remove general refuse from the site, separately
from C&D materials. An enclosed
and covered area is preferred to reduce the occurrence of 'wind blown' light material.
Chemical Wastes Ÿ If chemical wastes were to be produced at
the construction site, the Contractor would be required to register with the
EPD as a Chemical Waste Producer, and to follow the guidelines stated in the
Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.
Good quality containers compatible with the chemical wastes should be used,
and incompatible chemicals should be stored separately. Appropriate labels
should be securely attached on each chemical waste container indicating the
corresponding chemical characteristics of the waste such as explosive,
flammable, oxidizing, irritant, toxic, harmful, corrosive, etc. The
Contractor shall use a licensed collector to transport the chemical wastes.
The licensed collector shall deliver the waste to the Chemical Waste
Treatment Centre at Tsing Yi, or other licensed facility, in accordance with
the Waste Disposal (Chemical Waste) (General) Regulation.
|
All works areas |
CEDD/Contractor |
|
ü |
|
|
Waste Disposal Ordinance Waste Disposal (Chemical Waste) (General) Regulation Public Health and Municipal
Services Ordinance (Cap. 132) - Public Cleansing and Prevention of Nuisances
Regulation Land (Miscellaneous
Provisions) Ordinance Code of Practice on the Packaging, Labelling and Storage of Chemical
Wastes Packaging, Labelling and Storage of Chemical
Wastes |
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|
Waste Management Implication (Operational Phase) |
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|
N/A |
N/A |
N/A |
N/A |
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Land Contamination (Construction Phase) |
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|
N/A |
N/A |
N/A |
N/A |
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Land Contamination (Operational Phase) |
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|
N/A |
N/A |
N/A |
N/A |
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|
Ecological Impact (Terrestrial) (Construction Phase) |
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|
9.13.2-9.13.5 |
Measures to Avoid/ Minimize Impacts to Flora Species of Conservation Importance Ÿ Within the Project Site boundary, two flora species of conservation
importance (Incense Tree and Luofushan Joint-fir) would be subject to direct
impacts. A detailed vegetation survey
should be conducted by a qualified ecologist / botanist within the Project
Site boundary.
Ÿ
A Transplantation
Proposal should be prepared by a qualified ecologist / botanist with detailed
findings of the vegetation survey (i.e. number and locations of the affected
individuals, assessment of the suitability and / or practicality of the
transplantation) and locations of receptor site(s), transplantation
methodology, implementation programme of
transplantation, post-transplantation monitoring and maintenance programme.
The proposal should be submitted to and approved by AFCD prior to commencement
of any works (including ground investigation). The approved transplantation
works should be supervised by a qualified botanist / horticulturist /
Certified Arborist with relevant experience in transplanting flora species of
conservation importance. After
transplantation, a 3-year monitoring and maintenance programme of the transplanted species
should be conducted to ensure the establishment of the transplanted trees.
Ÿ Hoarding or fencing should be erected around the works areas during
the construction phase to restrict access, to adjacent habitats supporting
flora species of conservation importance, by site workers and to reduce human
disturbance.
|
All
works areas |
CEDD/Contractor |
|
ü |
|
|
EIAO-TM |
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|
9.13.6-9.13.8 |
Measures to Avoid/ Minimize Habitat Loss to Woodland and Plantation Ÿ
Habitat loss could
be avoided in the first instance by retaining existing vegetation wherever
possible, particularly mature and semi-mature trees present within the works
areas. Any trees retained should be
adequately protected during construction phase to promote their health and
longevity. Areas which would be
temporarily affected by construction activities (i.e. slope works) should be
reinstated after completing the construction works.
Ÿ
Hoarding
or fencing should be erected around the works areas during construction phase
to restrict access to natural habitats adjacent to works areas by site
workers.
|
All
works areas |
CEDD/Contractor |
ü |
ü |
|
|
EIAO-TM |
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|
9.13.9-9.13.12 |
Measures to Minimise Disturbance from Construction Activities Ÿ
Construction dust should be suppressed to avoid
and minimize the dust covering
leaves of plants that would affect their photosynthesis, and thus their
health and growth:
-
Regular
spraying of haul roads.
-
Proper
storage of construction materials.
-
Covering
trucks or transporting wastes in enclosed containers to minimize windblown
litter and dust during transportation of waste.
Ÿ
Noise impact during construction phase should be
avoided and minimized to reduce the disturbance to the habitats adjacent to
the works areas:
-
Machines
and plant (e.g. trucks) that may be in intermittent use should be shut down
between work periods or should be throttled down to a minimum.
-
Machines
and plants known to emit strong directional noise should, wherever possible,
be orientated so that the noise is directed away from the nearby
habitats.
-
Material
stockpiles and other structures should be effectively utilized, wherever
practicable, in screening noise from on-site construction activities.
-
Using
Quiet Mechanical Plant (QMP) to limit noise emissions at source.
-
QMP
and other machines and plants (e.g. air compressors, concrete pumps) should
be covered by noise enclosure to further reduce noise impact.
Ÿ
Through night-time lighting control during construction phase, glare disturbance to
wildlife would be controlled.
|
All
works areas |
CEDD/Contractor |
|
ü |
|
|
EIAO-TM |
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|
9.13.13 |
Measures to Minimise Pollution to Watercourses Ÿ Good site practices should be adopted to
avoid any pollution from entering the watercourses. Practices to minimize surface runoff and to
reduce suspended solid levels should be undertaken.
-
Drainage
arrangements should include sediment traps to collect and
control construction run-off.
-
All
works and storage area should be restricted to the site boundary.
-
General
refuse and construction wastes should be collected and disposed of in a
timely and appropriate manner.
-
Regular
check of the construction boundary to avoid unmitigated impacts imposed on
nearby watercourse.
|
All
works areas |
CEDD/Contractor |
|
ü |
|
|
EIAO-TM |
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|
Ecological Impact (Terrestrial) (Operational Phase) |
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|
9.13.14 |
Measures to Minimize Impacts from Noise Barriers Ÿ
During
the operational phase, the road networks and associated noise barriers may
result in bird collision and mortality.
Mitigation measures such as use of tinted materials and superimposing dark patterns or strips on the barrier, as per EPD / Highways Department requirements
would be employed to minimise incidents of mortality from collision.
|
All
works areas |
CEDD/Contractor |
|
|
ü |
|
EIAO-TM |
||||
|
Landscape and Visual (Construction Phase) |
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|
10.10.4 (Table 10.9) |
All existing trees to be retained shall be
carefully protected during construction. |
All works
areas |
CEDD/Contractor |
ü |
ü |
|
|
DEVB TC (W)
No.7/2015 and Guidelines on Tree Preservation during
Development, GLTMS of DEVB |
||||
|
10.10.4 (Table 10.9) |
Tree Transplantation Detailed
transplanting proposal will be submitted to relevant government departments
for approval in accordance with ETWB TCW No. 29/2004, DEVB TC (W) No.7/2015 and “Guidelines
on Tree Transplanting”, GLTMS of DEVB. |
All works
areas |
CEDD/Contractor |
ü |
ü |
|
|
ETWB TCW No. 29/2004 DEVB TC (W) No.7/2015 Guidelines on Tree Transplanting, GLTMS of DEVB |
||||
|
10.10.4 (Table 10.9) |
Erection of decorative screen hoarding for
reducing visual impacts |
All works
areas |
CEDD/Contractor |
|
ü |
|
|
EIAO-TM |
||||
|
10.10.4 (Table 10.9) |
Measures to avoid / minimize impacts to
flora species of conservation importance. |
All works areas |
CEDD/Contractor |
ü |
ü |
|
|
EIAO-TM |
||||
|
Landscape and Visual (Operational Phase) |
||||||||||||
|
10.10.4 (Table 10.10) |
Compensatory tree planting for loss of
existing trees (Compensation for
loss of road side amenity ) |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD/LCSD |
ü |
ü |
ü |
|
DEVB TC (W)
No.7/2015 GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Compensatory woodland planting |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD/ArchSD |
ü |
ü |
ü |
|
DEVB TC (W)
No.7/2015 GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Compensatory shrub mix planting |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD |
ü |
ü |
ü |
|
DEVB TC (W)
No.7/2015 GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Hydro-seeding planting with shrub seed mix |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD |
ü |
ü |
ü |
|
DEVB TC (W)
No.7/2015 GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Tall buffer advance screen tree / shrub /
climber planting |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD |
ü |
ü |
ü |
|
DEVB TC (W)
No.7/2015 GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Planting of road verges, central divider
and around structures |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD, LCSD |
ü |
ü |
ü |
|
ETWB(W) No. 2/2004 Subject to ACABAS
approval |
||||
|
10.10.4 (Table 10.10) |
Reinstate modified watercourse |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage -DSD |
ü |
ü |
ü |
|
EIAO-TM |
||||
|
10.10.4 (Table 10.10) |
Provision of visually pleasing aesthetic
treatment on noise barriers ( with climbers provided if space available) and
enclosures |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage -HyD |
ü |
ü |
ü |
|
ETWB(W) No. 2/2004 Subject to ACABAS
approval |
||||
|
10.10.4 (Table 10.10) |
Hard Landscape Treatment Carriageway,
Structures and Roadside Furniture (for example, pleasing aesthetic finishing
of retaining wall) |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD/LCSD/ArchSD |
ü |
ü |
ü |
|
ETWB(W) No. 10/2005 Subject to ACABAS
approval |
||||
|
10.10.4 (Table 10.10) |
Planting of toe planters for slope
enhancement |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –LCSD |
ü |
ü |
ü |
|
EIAO-TM GEO publication No.
1/2011 |
||||
|
10.10.4 (Table 10.10) |
Planting of
berm planters/ planting strips for slope enhancement |
All
works areas
|
Design and Construction Stage - CEDD Operational Stage –HyD |
ü |
ü |
ü |
|
EIAO-TM GEO publication No.
1/2011 |
||||
|
Landfill Gas Hazard (Construction Phase) |
||||||||||||
|
11.9.2 - 11.9.4 |
Ÿ Contractors shall note the possible
presence of landfill gas in the ground (even if it is unlikely) and shall
take this into account in the design, construction of the proposed works.
Ÿ A Safety Officer or an appropriately
qualified person, trained in the use of gas detection equipment, landfill gas
related hazards and the appropriate actions to take in the event of adverse
circumstances, shall be present on site throughout the works, in particular,
when works are undertaken below ground.
Ÿ The contractor shall take cognizance of
the presence of surface water and leachate management system and landfill gas
management systems near the proposed works area. The contractor shall take
all reasonable care to avoid any damage, loss, injury, interruption or
impairment of the integrity of the landfill facilities within the works
limits, storage area and across road area. The contractor shall also liaise
and seek EPD and their landfill contractor – Hong Kong Landfill Restoration
Group Limited (HKLRG) agreement on site arrangement before carrying out the
proposed work.
|
Works
areas within landfill consultation zones
|
CEDD/Contractor
|
|
ü |
ü |
|
EPD’s Landfill Gas Hazard Assessment
Guidance Note
|
||||
|
11.9.5 - 11.9.11 |
Safety Measures
Ÿ The contractor shall be aware of, and
inform all workers accordingly, that methane and carbon dioxide is always
likely to be present in the soil voids.
Ÿ All personnel working on site and all
visitors to the site be informed of the nearby
landfill site and the possibility of landfill gas in the vicinity of the
proposed works area. Safety warning notices shall be posted.
Ÿ No worker shall be allowed to work alone
at any time inside the trenches or joint bays or near to any excavation. At
least one other worker shall be available to assist in a rescue in an
emergency case.
Ÿ Smoking and naked flames shall be strictly
prohibited within the site or confined space if any. ‘No Smoking’ and ‘No
Naked Flame’ notices shall be posted prominently at the site entrance and
other conspicuous locations.
Ÿ All electrical equipment, such as motors
and extension cords, shall be intrinsically safe.
Ÿ Adequate safely equipment shall be available
at all times. This includes but is not limited to fire extinguishing
equipment, breathing apparatus and personal protective equipment.
Ÿ In the event of working inside a confined
space is required, sufficient approved resuscitation equipment, breathing
apparatus and safety torches shall be available. Persons involved in or
supervising such work shall be trained and practiced for the use of such
equipment. A permit-to-work system for entry into confined space shall be
established by an approved qualified person and consistently enforced. All
relevant Ordinances, Legislations, Guidelines and Codes of Practice
pertaining to work in confined space must be strictly adhered to.
|
Works
areas within landfill consultation zones
|
CEDD/Contractor
|
|
ü |
|
|
EPD’s Landfill Gas Hazard Assessment Guidance Note Labour Department’s Code of Practice for Safety and
Health at Work in Confined Space |
||||
|
11.9.12-11.9.16 |
Monitoring
Ÿ The works area shall be monitored
periodically during construction for the presence of methane, carbon dioxide
and oxygen using gas detection equipment. The gas detection equipment shall
be an intrinsically safe portable instrument, appropriately calibrated and
capable of measuring the following gases in the ranges indicated below:
- Methane 0 – 100% LEL and 0 – 100% v/v; - Carbon dioxide 0 – 100%; and - Oxygen 0 – 21%. Ÿ During construction, monitoring of
excavations shall be undertaken as follows:
Ÿ For excavation deeper than 1 m,
measurements shall be made:
- At the ground surface before excavation
commences; - Immediately before any worker enters an
excavation; - At the beginning of each working day for
the entire period the excavation remains open; and - Periodically through the working day
whilst workers are in the excavation. Ÿ For excavation between 300 mm and 1 m
deep, measurements shall be made:
- Directly after the excavation has been
completed; and - Periodically whilst the excavation remains
open. Ÿ For excavation less than 300 mm,
monitoring may be omitted at the discretion of the Safety Officer or other
appropriate qualified person.
Ÿ The monitoring frequency and area to be
monitored shall be set down prior to commencement of ground works either by
the Safety Officer or by an appropriately qualified person.
Ÿ Monitoring should be undertaken by the
Safety Officer or by an appropriately qualified person. The monitoring results shall be recorded
and kept on site and shall be readily available at all times for inspection
by the relevant authority.
Ÿ Depending upon the results of measurements,
actions will vary. Actions shall be
set down by the Safety Officer or other appropriately qualified person prior
to commencement of occupancy of the proposed works area.
|
Works
areas within landfill consultation zones
|
CEDD/Contractor
|
|
ü |
|
|
EPD’s Landfill Gas Hazard Assessment Guidance Note |
||||
|
Landfill Gas Hazard (Operational Phase) |
||||||||||||
|
11.10.2 – 11.10.3 |
Ÿ The presence of landfill gas should be
assumed at all times by maintenance workers.
Ÿ
All
maintenance workers inspecting any manhole should be fully trained in the
issue of landfill gas hazard.
Ÿ
Any
manhole which is large enough to permit to access to personnel should be
subject to safe entry procedures.
Ÿ
Working
in confined spaces is controlled by the Factories and Industrial Undertakings
(Confined Spaces) Regulations of the Factories and Industrial Undertakings
Ordinance. Following the Code of Practice on Safety and Health at Work in
Confined Spaces (Labour Department, Hong Kong) maintains compliance with the
above regulations.
Ÿ
A
strictly regulated “work permit procedure” should be implemented and the
relevant safety procedures must be rigidly followed.
Ÿ
Adequate
communication with maintenance staff should be maintained with respect to
landfill gas hazard.
Ÿ Utility companies should undertake a
landfill gas surveillance exercise at the utility manholes/inspection
chambers.
Ÿ Undertaken using an intrinsically safe
portable instrument, appropriately calibrated and capable of measuring the
following gases in the ranges indicated:
- Methane 0 – 100% LEL and 0 – 100% v/v; - Carbon dioxide 0 – 100%; and - Oxygen 0 – 21%. Ÿ Undertaken for the
duration of the site occupancy, or until such time that EPD agrees that
surveillance is no longer required.
Ÿ Depending on the results of the
measurements, actions required will vary and should be set down by
appropriately qualified person.
|
Works
areas within landfill consultation zones
|
Maintenance contractor/Utility companies
|
|
|
ü |
|
EPD’s Landfill Gas Hazard Assessment Guidance Note Labour Department’s Code of Practice for Safety and
Health at Work in Confined Space |
||||
Note:
(1)
Des =
Design; C = Construction; O = Operation; Dec = Decommissioning