Appendix 2a Implementation Schedule of Mitigation Measures
for Air Quality Control
EM&A Log Ref |
Environmental Protection Measures /
Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||||
Des |
C |
O |
Dec |
||||||
S.3.53 - 3.56 |
S.2.32 –2.33 |
·
Twice daily watering of the construction site where construction
activities are conducted ·
Implementation of the Air Pollution Control (Construction
Dust) Regulation and Good Site
Practices |
Work site / During the construction
period |
Contractor |
|
ü |
|
|
TM on EIA Process, APCO, Air Pollution Control (Construction
Dust) Regulation |
Appendix 2b Implementation
Schedule of Mitigation Measures for Noise Control
EIA
Ref # |
EM&A
Log Ref |
Environmental
Protection Measures / Mitigation Measures |
Location
/ Timing |
Implementation
Agent |
Implementation
Stages* |
Relevant
Legislation and Guidelines |
|||
Des |
C |
O |
Dec |
||||||
S4.41-4.43 |
S.3.19 |
Use of quiet
equipment |
Work site/During construction period |
Contractor |
|
ü |
|
|
EIAO-TM, NCO |
S.4.44 |
S3.20 |
Use of movable noise barrier
for the following construction activities: ·
construction of viaduct from Tai Lam Kok to Siu Lam
including piling, pile cap, bridge piers and abutment, casting of bridge
beams and lifting of bridge beams ·
construction works at Siu Lam Interchange including
relocation of CLP power sub-station, bored pile wall construction, road
embankment, realignment of access road, roundabout modification, road
pavement, utilities, footpath and road furniture |
Work sites of the viaduct from Tai Lam Kok to Siu Lam and Siu
Lam Interchange /During construction period |
Contractor |
|
ü |
|
|
|
S.4.46 |
S.3.21 |
Restriction
on the usage of operating PME for the following construction activities
during the examination period of the schools: ·
Road reconstruction from Tai Lam Kok to Siu Lam: road
construction (excavation of existing pavement, road pavement, footpath and
road furniture), utilities, fill slopes recompaction, cut slopes
stabilization (soil nailing to cut slopes). ·
Reclamation at Tai Lam Kok: dredging and sand filling. |
Work sites of the road reconstruction from Tai Lam Kok to Siu Lam and reclamation at Tai Lam
Kok/During construction period (examination period of the schools) |
Contractor |
|
ü |
|
|
|
S.4.48 |
S.3.22 |
Rescheduling
of the following concurrent construction activities so as to avoid
simultaneous operating during the examination period of the schools: Seamen’s
Training Centre ·
Piling works for viaduct from Tai Lam Kok to Siu Lam and
dredging works at Tai Lam Kok ·
Piling works for viaduct from Tai Lam Kok to Siu Lam and
seawall construction at Tai Lam Kok ·
Pile cap, bridge pier & abutment and filling works at
Tai Lam Kok ·
Fill slope recompaction and soil nailing to cut slopes
(cut slopes stabilization) for road reconstruction from Tai Lam Kok to Siu
Lam Customs &
Excise Training School ·
Fill slopes recompaction and soil nailing to cut slopes
(cut slopes stabilization) along the existing Castle Peak Road from Tai Lam
Kok to Siu Lam |
Work sites of the road reconstruction from Tai Lam Kok to Siu Lam and viaduct construction from Tai
Lam Kok to Siu Lam/During construction period (examination period of the
schools) |
Contractor |
|
ü |
|
|
|
S4.40 |
S. 3.23 |
Good Site Practices
·
Only well-maintained plant should be operated on-site and
plant should be serviced regularly during the construction program. ·
Silencers or mufflers on construction equipment should be
utilised and should be properly maintained during the construction program. ·
Mobile plant, if any, should be sited as far away from
NSRs as possible. ·
Machines and plant (such as trucks) that may be in intermittent
use should be shut down between work periods or should be throttled down to a
minimum. ·
Plant known to emit noise strongly in one direction should, wherever possible, be
orientated so that the noise is directed away from the nearby NSRs. ·
Material stockpiles and other structures should be
effectively utilised, wherever practicable, in screening noise from on-site
construction activities. |
Work site / During construction period |
Contractor |
|
ü |
|
|
|
S4.60 |
S.3.36 |
A cantilevered
barriers (5.5m high vertical barrier with a 5m cantilever at 45 degrees to
the horizontal) of around 25m located behind the footpath of Castle Peak Road |
Behind the footpath of Castle Peak Road near the Roundabout at
Siu Lam/During operation period |
HyD |
ü |
ü |
ü |
|
EIAO-TM |
|
|
A cantilevered barriers (5.5m high vertical barrier with
a 3m cantilever at 45 degrees to the horizontal) of around 15m located at
northbound carriageway of the slip road to the Siu Lam Interchange; |
Northbound carriageway of the slip road to the Siu Lam
Interchange /During operation period |
|
|
|
|
|
|
|
|
A full enclosure of around 76 m at the slip road to the
Siu Lam Interchange (CH102-CH178); |
Slip road to the Siu Lam Interchange (CH102-CH178) /During
operation period |
|
|
|
|
|
|
|
|
A full
enclosure of around 175 m at the Castle Peak Road viaduct (CH175-CH350) |
Castle Peak Road viaduct
(CH175-CH350) /During operation period |
|
|
|
|
|
|
|
|
A cantilevered
barriers (5.5m high vertical barrier with a 3m cantilever at 45 degrees to
the horizontal) of around 604m located at eastbound carriageway of the Castle
Peak Road viaduct (CH350 – CH954) |
Eastbound carriageway of the Castle Peak Road viaduct (CH350 –
CH954) /During operation period |
|
|
|
|
|
|
# All
recommendations and requirements resulted during the course of EIA/EA Process,
including ACE and/or accepted public comment to the proposed project.
* Des
- Design, C - Construction, O – Operation, and Dec - Decommissioning
Appendix 2c Implementation Schedule of Mitigation
Measures for Water Quality Control
EIA Ref # |
EM&A Log Ref |
Environmental Protection Measures /
Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
|||
Des |
C |
O |
Dec |
||||||
S5.54 |
S.4.36 |
Dredging ·
Dredging should be undertaken using closed grab dredgers with
a maximum total production rate of 3,000 m3 day-1; ·
Deployment of silt curtain around the immediate dredging
area while dredging works are in progress; ·
Filling should commence only after the completion of seawall
construction and should be undertaken behind the seawalls; ·
Mechanical grabs should be designed and maintained to
avoid spillage and seal tightly while being lifted; ·
All vessels should be sized so that adequate clearance is
maintained between vessels and the seabed in all tide conditions, to ensure
that undue turbidity is not generated by turbulence from vessel movement or
propeller wash; ·
All hopper barges and dredgers should be fitted with
tight fitting seals to their bottom openings to prevent leakage of material; ·
Construction activities should not cause foam, oil,
grease, scum, litter or other objectionable matter to be present on the water
within the site or dumping grounds; and ·
Loading of barges and hoppers should be controlled to
prevent splashing of dredged material into the surrounding water. Barges or hoppers should not be filled to
a level that will cause the overflow of materials or polluted water during
loading or transportation. |
Work
site / During the construction period |
Contractor |
|
ü |
|
|
WBTC No. 3/2000 |
S5.55 – 5.56 |
S.4.37-4.38 |
Construction Site Runoff and Drainage ·
Before commencing any site formation work, all sewer and
drainage connections shall be sealed to prevent debris, soil, sand etc. from entering
public sewers/drains. ·
Provision of perimeter channels to intercept storm-runoff
from outside the site. These shall be
constructed in advance of site formation works and earthworks. ·
Temporary ditches such as channels, earth bunds or sand
bag barriers shall be included to facilitate runoff discharge into the
stormwater drain, via a sand/silt basin/trap. ·
Works programmes shall be designed to minimise works
areas at any one time, thus minimising exposed soil areas and reducing the
potential for increased siltation and runoff. ·
Sand/silt removal facilities such as sand traps, silt
traps and sediment basins shall be provided to remove the sand/silt particles
from run-off. These facilities shall
be properly and regularly cleaned and maintained. These facilities shall be
carefully planned to ensure that they would be installed at appropriate
locations to capture all surface water generated on site. ·
Careful programming of the works to minimise excavation
works during the rainy season. ·
Temporary access roads shall be protected by crushed
gravel and exposed slope surfaces shall be protected when rainstorms are
likely. ·
Open stockpiles of construction materials on-site shall
be covered with tarpaulin or similar fabric during rainstorms to prevent
erosion. |
Work
site / During the construction period |
Contractor |
|
ü |
|
|
ProPECC PN
1/94 |
S5.57 |
S.4.39 |
General
Construction Activities ·
Debris and rubbish generated on-site should be collected,
handled and disposed of properly to avoid entering the nearby coastal waters
and stormwater drains. ·
All fuel tanks and store areas shall be provided with
locks and be sited on sealed areas, within bunds of a capacity equal to 110%
of the storage capacity. ·
Open drainage channels and culverts near the works areas
should be covered to block the entrance of large debris and refuse |
Work site /
During the construction period |
Contractor |
|
ü |
|
|
ProPECC PN 1/94 |
S5.58 |
S.4.40 |
Sewage Effluent Portable
toilets shall be provided by the Contractors, where necessary, to handle
sewage from the workforce. |
Work site /
During the construction period |
Contractor |
|
ü |
|
|
ProPECC PN 1/94 |
S5.59 |
S4.41 |
Operation Phase ·
The road drainage should be
directed through silt traps in the gully inlets to remove silt and grit
before entering the public storm water drainage system; and ·
The silt traps should be regularly cleaned and maintained
in good working condition. |
Road drainage system / During
operational period |
Project Proponent |
ü |
|
ü |
|
ProPECC PN
5/93 |
# All recommendations and
requirements resulted during the course of EIA/EA Process, including ACE and/or
accepted public comment to the proposed project.
* Des - Design, C - Construction, O – Operation, and Dec -
Decommissioning
Appendix
2d Implementation Schedule of
Mitigation Measures for Waste Management
EIA Ref # |
EM&A Ref # |
Environmental Protection Measures / Mitigation
Measures |
Location / Timing |
Implementation
Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
|||
Des |
C |
O |
Dec |
||||||
S.6.35–S.6.37 |
S5.3 - S5.5 |
Marine Sediments ·
In accordance with the WBTC No. 3/2000, the seriously contaminated material must be dredged and transported
with great care. Mitigation measures,
including the use of closed-grab dredgers, shall be incorporated. ·
The dredged contaminated
sediment must be effectively isolated from the environment upon final
disposal and shall be disposed of at the East Sha Chau Contaminated Mud Pits. During transportation and disposal of the dredged marine sediments,
the following measures shall be taken to minimise potential impacts on water
quality: ·
Bottom opening of barges shall be
fitted with tight fitting seals to prevent leakage of material. Excess material shall be cleaned from the
decks and exposed fittings of barges and hopper dredgers before the vessel is
moved. ·
Monitoring of the barge loading
shall be conducted to ensure that loss of material does not take place during
transportation. Transport barges or
vessels shall be equipped with automatic self-monitoring devices as specified
by the Director of Environmental Protection. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
WBTC No. 3/2000 |
S.6.38 |
S 5.6 |
Good Site
Practices and Waste Reduction Measures ·
Use waste haulier authorized or
licensed to collect specific category of waste; ·
Obtain the necessary waste disposal permits from the appropriate
authorities, if they are required, in accordance with the Waste Disposal Ordinance (Cap 354, Waste
Disposal (Chemical Waste) (General) Regulation (Cap 354), the Land
(Miscellaneous Provision) Ordinance (Cap 28); ·
nomination of an approved
personnel, such as a site manager, to be responsible for good site practice,
arrangements for collection and effective disposal to an appropriate
facility, of all wastes generated at the site; ·
training of site personnel in
proper waste management and chemical handling procedures; ·
provision of sufficient waste
disposal points and regular collection for disposal; ·
appropriate measures to minimise
windblown litter and dust during transportation of waste by either covering
trucks or by transporting wastes in enclosed containers; ·
separation of chemical wastes for
special handling and appropriate treatment at the CWTF; ·
regular cleaning and maintenance
programme for drainage systems, sumps and oil interceptors; ·
a recording system for the amount of wastes generated,
recycled and disposed of (including the disposal sites); ·
In order to monitor the disposal of C&D and solid
wastes at public filling facilities and landfills, and control fly-tipping, a
trip-ticket system should be included as one of the contractual requirements
and implemented by the Environmental Team.
One may make reference to WBTC No. 5/99 for details; and ·
A Waste Management Plan (WMP) should be prepared and this
WMP should be submitted to the Engineer for approval. One may make reference to WBTC No. 29/2000
for details. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
Waste Disposal Ordinance (Cap.54) |
S6.39 |
S5.7 |
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: ·
segregation and storage of
different types of waste in different containers, skips or stockpiles to enhance
reuse or recycling of materials and their proper disposal; ·
to encourage collection of
aluminium cans by individual collectors, separate labelled bins shall be
provided to segregate this waste from other general refuse generated by the
work force; ·
any unused chemicals or those
with remaining functional capacity shall be recycled; ·
use of reusable non-timber
formwork to reduce the amount of C&D material; ·
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; ·
proper storage and site practices
to minimise the potential for damage or contamination of construction
materials; and ·
plan and stock construction materials carefully to
minimize amount of waste generated and avoid unnecessary generation of waste. |
Work site / During planning and design stage, and
construction stage |
Contractor |
ü |
ü |
|
|
WBTC No. 4/98,
5/98 |
S 6.41 - S.6.43 |
S.5.9 – 5.11 |
Construction and
Demolition (C&D) Waste
·
Careful design, planning
and good site management can minimize over-ordering and generation of waste
materials such as concrete, mortar and cement grouts. The design of formwork should maximize the
use of standard wooden panels so that high reuse levels can be achieved. Alternatives such as steel formwork or
plastic facing should be considered to increase the potential for reuse. ·
The contractor should use
as much of the C&D material as possible on-site. Proper segregation of waste types on site
will increase the feasibility of certain components of the waste stream by
recycling contractors. ·
Inert C&D material
(public fill) are directed to reclamation areas, where they have the added benefit
of offsetting the need for removal of materials from borrow areas for
reclamation purposes, or to an approved public filling area (PFA). |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
S6.44 –S.4.48 |
S.5.12-5.17 |
Chemical Wastes
After use, chemical wastes should be handled according to
the Code of Practice on the Packaging, Labeling and Storage of Chemical
Wastes. Spent chemicals should be
stored and collected by an approved operator for disposal at the Chemical Waste
Treatment Facility or other licensed facility in accordance with the Chemical
Waste (General) Regulation. ·
Containers used for the storage of chemical waste should: ·
·
Be suitable for the
substance they are holding, resistant to corrosion, maintained in good
condition, and securely closed; ·
Have a capacity of less
than 450 litres unless the specifications have been approved by the EPD; and ·
Display a label in English
and Chinese in accordance with instructions prescribed in Schedule 2 of the
Regulations. ·
The storage area for chemical waste should: ·
·
Be clearly labeled and used
solely for the storage of chemical waste; ·
Be enclosed on at least 3
sides; ·
Have an impermeable floor
and bunding, of capacity to accommodate 110% of the volume of the largest
container or 20% by volume of the chemical waste stored in that area,
whichever is the greatest; ·
Have adequate ventilation; ·
Be covered to prevent
rainfall entering (water collected within the bund must be tested and
disposal as chemical waste if necessary); and ·
Be arranged so that
incompatible materials are adequately separated. ·
Disposal of chemical waste should: ·
·
Be via a licensed waste
collector. ·
Be a facility licensed to
receive chemical waste, such as the Chemical Waste Treatment Facility which
offers a chemical waste collection service and can supply the necessary
storage containers; or be a reuser of the waste, under approval from the EPD. ·
Be a reuser of the waste,
under approval from the EPD |
Work site / During the construction period |
Contractor |
|
ü |
|
|
Waste Disposal
(Chemical Waste) (General)
Regulation, Code of
Practice on the Packaging,
Labelling and Storage of
Chemical Wastes |
S.6.49 – S.6.50 |
S.5.18 – 5.19 |
General Refuse ·
General refuse should be stored
in enclosed bins or compaction units separate from C&D and chemical
wastes. A reputable waste collector
should be employed by the contractor to remove general refuse from the site,
separately from C&D and chemical wastes, on a daily or every second day
basis to minimize odour, pest and litter impacts. ·
Office waste can be reduced
through recycling of paper if volumes are large enough to warrant
collection. Participation in a local
collection scheme should be considered if one is available. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
PHMSO &
Air Pollution control (Open
Burning) Regulation |
# All recommendations and requirements resulted during
the course of EIA/EA Process, including ACE and / or accepted public comment to
the proposed project.
* Des - Design, C - Construction, O – Operation, and
Dec - Decommissioning
Appendix
2e Implementation Schedule of
Mitigation Measures for Ecology
EIA Ref
# |
EM&A Ref # |
Environmental
Protection Measures / Mitigation Measures |
Location /
Timing |
Implementation Agent |
Implementation
Stages* |
Relevant Legislation and
Guidelines |
|||||||
Des |
C |
O |
Dec |
||||||||||
S.7.57 |
S.6.4 |
On-site
planting should be provided if there are loss of vegetation due to
construction activities. |
Work site / during construction
period |
Contractor |
|
ü |
|
|
|
||||
S.7.58 – 7.61 |
S.6.5 –S.6.8 |
Erect fences
where practical along the boundary of construction sites. Check the work
site boundaries regularly. Prohibit and
prevent open fires within the site boundary and provide temporary fire
fighting equipment. |
Work Site / during construction
period |
Contractors |
|
ü |
|
|
|
||||
S.7.59 |
S.6.6 |
Reinstate
temporary work sites / disturbed areas to its original condition immediately
after completion of the construction. |
Work Site / during construction
period |
Contractor |
|
ü |
|
|
|
||||
# All recommendations and
requirements resulted during the course of EIA/EA Process, including ACE and/or
accepted public comment to the proposed project.
* Des - Design, C - Construction,
O – Operation, and Dec - Decommissioning
Appendix 2f Implementation Schedule of Mitigation
Measures for Landscape and Visual Impact
EIA Ref # |
EM&A Log Ref |
Environmental Protection Measures /
Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
|||
Des |
C |
O |
Dec |
||||||
S.9.82 |
S.7.6-7.8 |
Construction
programming and management. (LMM1) |
|
|
|
|
|
|
|
|
|
The construction programme for the Project should be
reduced to the shortest possible period, particularly in those locations where
severe or high landscape and visual impacts are expected |
Work site / During the construction period |
Contractor |
ü |
ü |
|
|
|
|
|
Keeping the periphery of the works areas at street level clean
and tidy and attractive and convenient for pedestrians. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Use of colourful hoarding with interesting motifs |
Work site / During the construction period |
Contractor |
ü |
ü |
|
|
|
S.9.83 |
S.7.9-7.11 |
Advanced
planting and erosion control works. (LMM2) |
|
|
|
|
|
|
|
|
|
Advance planting of trees and landscape
areas |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Temporary
hydroseeding of stockpiled topsoil to minimise erosion and improve the visual
appearance. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Maintenance and Management of planting during operation |
Work site / During the operation period |
LCSD♦
|
|
|
ü |
|
WBTC 18/94 LU/GN001 |
S.9.84 |
S.7.12-7.14 |
Maximisation
of amenity planting in road corridor (LMM3) |
|
|
|
|
|
|
|
|
|
Opportunities to incorporate significant amenity areas along
the alignment should be maximised to provide visual relief in an otherwise
congested traffic environment. Efforts to remove the footpath from the
immediate road edge are to be incorporated whenever possible. |
Work site / During Detailed Design |
Design HyD |
ü |
|
|
|
|
|
|
Substantial planting of amenity areas |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Maintenance of planting during operation |
Work site / During the operation period |
LCSD♦
|
|
|
ü |
|
WBTC 18/94 LU/GN001 |
S.9.85 |
S.7.15-7.17 |
Design,
materials and finishes of engineering structures (LMM4). |
|
|
|
|
|
|
|
|
|
The quality of the design of all engineering structures, which
will include viaducts, parapets, piers, slip roads, noise barriers, noise
enclosures and drainage systems. Attention should be given to design modern
and attractive structures. |
Detailed Design |
Design
Consultants |
ü |
|
|
|
ACABAS Submission HyD
Standards |
|
|
High quality finishes to structural elements |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Maintenance and management during operation |
Work site / During the operation period |
HyD STR |
|
|
ü |
|
|
S.9.86 |
S.7.18-7.19 |
Maximisation
of woodland planting on disturbed land. (LMM5) |
|
|
|
|
|
|
|
|
|
Compensatory planting. |
Contractor |
|
ü |
|
|
WBTC 25/93. |
|
|
|
Maintenance and Management of planting during operation |
Work site / During the operation period |
LCSD♦
|
|
|
ü |
|
WBTC 18/94 LU/GN/001 |
S.9.87 |
S.7.20-7.21 |
Urban area
under-viaduct hard and soft landscape works. (LMM6) |
|
|
|
|
|
|
|
|
|
Where viaducts result in sterilised space under viaducts,
extensive hard and soft landscape works should be provided to enhance and
restore the function of the land, including creepers and climbers on
retaining walls and supporting columns. |
Work site / During the construction period |
Contractor |
|
ü |
|
|
|
|
|
Maintenance and management of during operation |
Work site / During the operation period |
LCSD♦
/ ArchSD♦ / HyD♦ |
|
|
ü |
|
WBTC 18/94 LU/GN001 |
# All recommendations and
requirements resulted during the course of EIA/EA Process, including ACE and/or
accepted public comment to the proposed project.
* Des - Design, C - Construction,
O – Operation, and Dec - Decommissioning
♦ Based
on Appendix A to WBTC 18/94