Table 13.13.1 Implementation Schedule for Construction
Dust Control
EIA Ref # |
Environmental Protection Measures / Mitigation
Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
S3.8.4 |
Sai Kung River ·
Twice daily watering
of the work site with active operations (material handling and haul roads)
when the weather and the work site are dry.
Ho Chung Channel and Pak Kong River ·
Twice daily watering
of the work site with active operations (material handling) when the weather
and the work site are dry.
·
Extensive watering of
the haul roads (at least every two hours daily) to keep the haul roads in wet
condition.
|
Work site/ During construction period |
Contractor |
|
Ö |
|
Air Pollution Control (Construction Dust) Regulation |
S3.8.6 |
Dust mitigation measures stipulated in the Air Pollution Control (Construction Dust) Regulation shall be incorporated to control dust emission. Notice shall be given to the authority prior to commencement of works. |
Work site/ During construction period |
Contractor |
|
Ö |
|
Air Pollution Control (Construction Dust)
Regulation |
S3.8.7 |
The speed of haul road traffic should be limited
to 10 kph. |
Work site/ During
construction period |
Contractor |
|
Ö |
|
Air Pollution Control
(Construction Dust) Regulation |
S3.8.8 |
To minimise odour nuisance at nearby ASRs, the following odour
control measures are recommended:
·
any odorous dredged
material should be placed remote from air sensitive receivers; ·
any odorous permitted
stockpiled material should be removed within two days of work to reduce the
amount of time available for decomposition; and ·
any odorous permitted
stockpiled material should be covered with plastic tarpaulin sheets. |
Work site/ During
construction period |
Contractor |
|
Ö |
|
Air Pollution Control
(Construction Dust) 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, and O – Operation,
and
Dec - Decommissioning
Table 113.3.2 Implementation Schedule for Construction
Noise Control
EIA Ref # |
Environmental Protection Measures / Mitigation
Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
S 4.8.1-S4.8.3 |
Use
of quiet PME |
Work site / During the construction period |
Contractor |
|
Ö |
|
ProPECC PN2/93 and Noise Control Ordinance |
S 4.8.4-S4.8.10 |
Use
of movable noise barriers and temporary noise barrier |
Work site / During the construction period |
Contractor |
|
Ö |
|
ProPECC PN2/93 and Noise Control Ordinance |
S 4.8.11 |
Good Site Practice ·
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 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; and ·
Material stockpiles
and other structures should be effectively utilised, wherever practicable, in
screening noise from on-site construction activities. |
Work site / During the construction period |
Contractor |
|
Ö |
|
ProPECC PN2/93 and Noise Control Ordinance |
S4.10.1 |
Environmental
Monitoring and Audit (EM&A) programme is recommended to be implemented
during the construction stage. |
Work site / During the construction period |
Contractor |
|
Ö |
|
- |
# 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 and, O – Operationn, and Dec - Decommissioning
Table 13.13.3 Implementation Schedule for Water Quality
Control
EIA Ref # |
Environmental Protection Measures
/ Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and
Guidelines |
||
Des |
C |
O |
|||||
S5.8.2 –S5.8.3 |
Channel
Excavation Works ·
·
|
Work site / During the
construction period |
Contractor |
|
Ö |
|
- |
S5.8.5 |
Construction Runoff and
Drainage ·
Before commencing any
site formation work, all sewer and drainage connections should be sealed to
prevent debris, soil, sand etc. from entering public sewers/drains. ·
Temporary ditches
should be provided to facilitate run-off discharge into appropriate
watercourses, via a silt retention pond.
·
Boundaries of
earthworks should be marked and surrounded by dykes or embankments for flood
protection, as necessary. ·
Sand/silt removal
facilities such as sand traps, silt traps and sediment basins should be
provided to remove sand/silt particles from runoff to meet the requirements
of the Technical Memorandum standard under the WPCO. The design of silt
removal facilities should be based on the guidelines provided in ProPECC PN
1/94. All drainage facilities and
erosion and sediment control structures should be inspected monthly and
maintained to ensure proper and efficient operation at all times and
particularly during rainstorms. ·
Water pumped out from
foundation excavations should be discharged into silt removal facilities. ·
Careful programming of
the works to minimise surface excavations for the drainage improvement works
during the wet season. If excavation
of soil cannot be avoided during the wet season, exposed slope surfaces
should be covered by a tarpaulin or other means. Other measures that need to
be implemented before, during, and after rainstorms are summarised in ProPECC
PN 1/94. ·
Exposed soil areas
should be minimised to reduce potential for increased siltation and
contamination of runoff. ·
Earthwork final
surfaces should be well compacted and subsequent permanent work should be
immediately performed. ·
Open stockpiles of
construction materials or construction wastes on-site should be covered with
tarpaulin or similar fabric during rainstorms.
|
Work site / During the
construction period |
Contractor |
|
Ö |
|
ProPECC PN 1/94; WPCO |
S5.8.6-S5.8.7 |
General
Construction Activities ·
Debris and refuse
generated on-site should be collected, handled and disposed of properly to
avoid entering the adjacent watercourses. Stockpiles of cement and other
construction materials should be kept covered when not being used.
·
|
Work site / During the
construction period |
Contractor |
|
Ö |
|
ProPECC PN 1/94; WPCO |
S5.8.8 |
Sewage
from Construction Workforce ·
Temporary sanitary
facilities, such as portable chemical toilets, should be employed on-site
where necessary to handle sewage from the workforce. A licensed contractor
would be responsible for appropriate disposal and maintenance of these
facilities. |
Work site / During the
construction period |
Contractor |
|
Ö |
|
WPCO |
S5.8.10- S5.8.12 |
Accidental Spillage of Chemicals on Site
·
In case of the
occurrence of accidental spillage of chemicals, it is required to take
immediate actions to control the release of chemicals into the nearby water
bodies. It is recommended that the contractor of the project should develop
an emergency plan to deal with accidental spillage of chemicals in the
construction site. ·
Good site practices
would avoid the accidents to occur. Areas for chemical storage should be
securely locked and kept as far from the drainage systems or stream courses
as possible. The storage area should 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,
to minimise the impacts from any potential accidents. ·
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: o
Suitable
containers should be used to hold the chemical wastes to avoid leakage or
spillage during storage, handling and transport; o
Chemical waster
containers should be suitably labelled to notify and warn the personnel who
are handling the wastes to avoid accidents; o
Storage area
should be selected at a safe location on site and adequate space should be
allocated to the storage area. |
Work site / During the
construction period |
|
|
Ö |
|
|
S5.10.1 |
· Water quality monitoring requirements and regular audit during construction phase should be carried out. |
Drainage channel / During the
operation period |
Contractor |
|
Ö |
|
- |
# 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 and, O – Operationn, and Dec - Decommissioning
Table 13.13.4 Implementation Schedule for Waste
Management Implications
EIA Ref # |
Environmental
Protection Measures/Mitigation Measures |
Location/ Timing |
Implementation
Agent |
Implementation Stages* |
Relevant
Legislation and Guidelines |
||
Des |
C |
O |
|||||
S6.5.2 – S6.5.3 |
Good Site Practices and Waste Reduction Measures 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 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
Chemical Waste Treatment Facility. ·
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) shall be proposed. ·
A
Waste Management Plan shall be prepared and submitted to the Engineer for
approval. One may make reference to ETWB TCW No. 15/2003 for details. ·
In
order to monitor the disposal of C&D materials at landfills and public
filling areas, and to control fly tipping, a trip-ticket system shall be
included as one of the contractual requirements. One may make reference to ETWB TCW
No. |
Work site / During the construction period |
Contractor |
|
Ö |
|
Waste Disposal Ordinance (Cap.54),
|
S6.5.9 |
Excavated Riverbed Material Use of water-tight trucks for the transportation
of excavated riverbed material to the designated barging point for disposal
at the designated public filling area, or transported directly to the public
filling area.
|
Work site /
During the construction period |
Contractor |
|
Ö |
|
WDO |
S6.5.11 |
General Refuse General refuse shall be stored in enclosed bins
or compaction units separate from C&D material. A reputable waste collector shall be employed by the contractor
to remove general refuse from the site, separately from C&D
material. An enclosed and covered
area is preferred to reduce the occurrence of 'wind blown' light material. |
Work site /
During the construction period |
Contractor |
|
Ö |
|
Public Health
and Municipal Services Ordinance (Cap. 132) |
S6.5.10 |
Chemical Waste If chemical wastes are produced at the construction
site, the Contractor shall register with the EPD as a Chemical Waste Producer
and 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 shall be used, and incompatible chemicals shall be
stored separately. Appropriate labels
shall be securely attached on each chemical waste container indicating the
corresponding chemical characteristics of the chemical waste, such as
explosives, flammable, oxidizing, irritant, toxic, harmful, corrosive, etc. The Contractor shall use a licensed
collector to transport and dispose of the chemical wastes generated at the
Chemical Waste Treatment Centre at Tsing Yi, or other |
Work site / During the construction period |
Contractor |
|
Ö |
|
Waste Disposal (Chemical Waste) (General)
Regulation |
# All recommendations and requirements resulted during the course of EIA
Process, including ACE and / or accepted public comment to the proposed
project.
·
Des - Design, C - Construction, and O - Operation and Dec –
Decommissioning
Table
13.13.5 Implementation Schedule for Land Contamination
EIA Ref # |
Environmental Protection Measures
/ Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and
Guidelines |
||
Des |
C |
O |
|||||
S.7.7.2
– S.7.7.3 |
Land Contamination
Assessment
|
Identified areas
which require specific contamination investigation /After land resumption and during construction period |
Contractor |
|
Ö |
|
ProPECC PN3/94 and Guidance Notes
for Investigation and Remediation of Contaminated Sites of: Petrol Filling
Stations, Boatyards, and Car Repair / Dismantling Workshops. |
S.7.9.1 |
Mitigation Measures Mitigation measures
for handling of the
|
Contaminated sites identified in the CAR /
During construction period |
Contractor |
|
Ö |
|
Waste Disposal Ordinance, Waste Disposal
(Chemical Waste) (General) 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 and,
O – Operation, and Dec - Decommissioning
Table 13.13.6 Implementation Schedule for Ecological
Requirements
EIA Ref # |
Environmental Protection Measures / Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
S8.7.2 & S8.7.5 |
·
For the Sai Kung River, the base of the improved
channel should be lined with natural substrates (e.g., gravel, cobbles and
boulders). Substrates found in the existing river section should be used to
line the new channel. Substrates lining the improved channel should be
arranged to re-create the existing riffle-pool sequence found in the river.
Pits would be provided in the gabion to allow planting of herbaceous riparian
vegetation. ·
For the Ho Chung River, newly widened sections of
riverbed should be lined with natural substrates (e.g., cobbles and
boulders), with the size and arrangement of these substrates selected to
complement adjacent areas of the existing riverbed. The substrates should be
sourced as far as practicable from materials excavated during the river
widening. Pits should be provided in the gabion to allow planting of
herbaceous riparian vegetation.
|
Work site /
During planning & design stage, and construction stage |
Contractor |
Ö |
Ö |
|
-
|
S8.7.10 &
S8.8.5 |
·
At the Sai Kung and Ho Chung Rivers the following
measures would be implemented: ·
Drainage improvement works would be limited to
downstream sections of the existing rivers. ·
Within the proposed works areas, drainage
improvement works would be conducted in sections (approximately 250m in
length) along only one bank of the river at a time. Excavation works would be
restricted to an enclosed dry section of the river, with containment measures
such as bunds and barriers used within the river to minimise the impacts upon
the downstream water body. Using this approach to construction works, only
localised areas of the river would be subject to disturbance at any one time,
and flow would be maintained within the rivers. ·
The excavation works for channels should be
carried out in the dry condition, with construction carried out by land-based
plant. Excavation works should be restricted to an enclosed dry section of
the river, with containment measures such as bunds and barriers used within
the river to minimise the impacts upon the downstream water body. Site runoff
should be directed towards regularly cleaned and maintained silt traps and
oil/grease separators to minimise the risk of sedimentation and pollution of
river water. The silt and oil/grease separators should be appropriately
designed for the local drainage and ground conditions. To minimise leakage
and loss of sediments during excavation in narrow channels, tightly sealed
closed grab excavators should be deployed where material to be handled is
wet.
|
Work
site/during construction phase |
Contractor |
|
Ö |
|
-
|
S8.8.6 |
·
Noise mitigation measures including the use of
quiet construction plant and temporary noise barriers (Section 4 of the EIA report refers) should be
implemented to minimise disturbance to habitats adjacent to the works areas.
In particular, measures such as noise barriers should be used to minimise
disturbance to the bat roost identified close to the Pak Kong works area. |
Pak Kong/during
construction phase |
Contractor |
|
Ö |
|
- |
S8.8.7 |
·
Two small trees and six seedlings of the rare
tree species Ehretia acuminata recorded on the southern bank of the existing
Ho Chung River to be transplanted to another area within the Ho Chung site
boundary before the commencement of construction phase activities. The exact
location for transplantation would be confirmed during the design stage.
Fencing would be erected around the transplanted trees/seedlings to minimise
potential construction phase disturbance.
|
Ho Chung works site/before construction phase |
Contractor |
|
Ö |
|
- |
S8.8.9 |
·
Seeds from the existing Ehritia acuminata trees
should be collected and propagated. The seeds should be collected from mature
fruits (the fruiting period of E. acuminata is from May to September) prior
to transplantation, and germinated in containers under suitable conditions.
Following germination and growth, the seedlings should be planted at suitable
locations within the Ho Chung Works Area (to be determined during the
detailed design stage). The survival of newly planted seedlings should be
monitored. Seed collection, propagation, planting and monitoring of E.
acuminata should be undertaken by a suitably qualified
botanist/horticulturalist appointed by the Project Proponent. A detailed
methodology for these works should be formulated during the detailed design
stage of the Project, in consultation with AFCD.
|
Ho Chung works site/before construction phase |
Contractor |
|
Ö |
|
- |
S8.8.14 |
·
|
Work site / During planning & design stage, and construction stage |
Contractor |
Ö |
Ö |
|
- |
S8.8.15- S8.8.16 |
·
· Compensatory planting should make use of native plant species with flowers/fruits attractive to wildlife. |
Works site/during construction phase |
Contractor |
|
Ö |
|
- |
S8.10.1 |
· The proper implementation of ecological mitigation measures should be audited. Details are provided in the EM&A Manual. |
Works site/during construction phase |
Contractor/ET |
Ö |
Ö |
|
- |
S8.10.2- S8.10.3 |
·
A
·
Contingency plan should be implemented if the post-construction
phase monitoring demonstrates that re-colonisation is unsuccessful. Details are provided in
the EM&A Manual.
|
Works site/before and during construction phase, operation phase |
Contractor /Ecologist appointed by Project Proponent
(DSD) |
Ö |
Ö |
Ö |
- |
S8.10.4 |
·
|
Ho Chung works site/before and during construction phase |
botanist/ horticulturalist appointed by
the Project Proponent (DSD) |
Ö |
Ö |
|
- |
# 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 and , O
– Operation, and Dec – Decommissioning
Table 13.13.7 Implementation Schedule for Landscape and
Visual Mitigation Measures
EIA Ref # |
Environmental Protection Measures / Mitigation
Measures |
Location / Timing |
Implementation/ Maintenance Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
Fig A9.12A |
LMM
1 - Gabions with Pits to Plant Riparian Vegetation ·
During detailed design, there should be
co-ordination between the designers to ensure that pits are allowed in
gabions with sufficient soil for the planting of riparian vegetation. |
Works site/during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
DSD Particular Specification WBTC 2/2004 |
Fig A9.12A |
LMM
2 - Rip Rap and Riffles Treatment to Channel Base ·
The channel base should be covered in rip-rap
which is considered to be more aesthetically appropriate than fair-faced
concrete. Riffles with different water depths should be created incorporating
aquatic plants. |
Works site/during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
DSD Particular Specification |
Fig A9.12A |
LMM
3
- Surface Treatment of Flood Walls and Retaining Walls ·
At the design stage, there should be
comprehensive planning by the designers to ensure that the appearance of
flood walls incorporate aesthetic treatments which is considered to be
aesthetically appropriate than fair-faced concrete. |
Works site/before and during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
DSD Particular Specification |
Fig A9.12B |
LMM
4 – Compensatory Planting along Drainage Channel ·
At the detailed design stage, tree and shrub
planting should be included by the designer using amenity species along
footpath areas or woodland seedling tree and shrub on slopes. |
Works site/during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
WBTC
14/2002 WBTC 2/2004 |
Fig A9.12B |
LMM
5 - New Roadside Tree Planting along Access Roads ·
Allowance should be made for planting of heavy
standard size trees in the ratio of one tree planted every tree felled. |
Works site/during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
WBTC
14/2002 WBTC 2/2004 |
Fig A9.12B |
LMM
6 - Grass Concrete Slabs ·
Grass concrete slabs should be used in
maintenance access over covered culverts and access ramps to produce a more
pronounced greening effect. |
Works site/during construction phase |
12 months establishment
period: Contractor Operation: DSD |
|
Ö |
Ö |
DSD Particular Specification |
# 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 and O – Operation
[Input will be provided as soon as possible]Table 13.
13.8 Implementation Schedule for Cultural
Heritage
EIA Ref # |
Environmental Protection Measures / Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
S10.10.1 |
The
Contractor should report to the Engineer, DSD and the AMO immediately for any
discovery of the Antiquities or supposed antiquities during the course of the
construction works. |
Work
site /during construction phase |
Contractor |
|
Ö |
|
Antiquities
and Monuments Ordinance |
S10.10.2 |
Mitigation Measures during Construction Stage · Higher earth god shrine: Protective measures should be provided for the shrine if works are taken place in close proximity. The protective measures should consist of the following:
(1) High visibility fencing at a distance of one meter around the shrine; and
(2) Heavy
duty plastic sheeting to be placed over the exterior surfaces of the shrine for
duration of ongoing works.
· A pedestrian access path to the shrine should be maintained through out the construction period. As the shrine is located within the works area, for purposes of public safety, the path should be marked with a temporary fence and the access route clearly marked by signage. ·
The
Che Kung Temple, Ho Chung: Vehicle parking is currently available in an
open lot directly to the northwest of the temple. If the works area infringes
on the parking area, alternative parking facilities should be made
available. Clear signage for
directions to the temple should be provided from Hiram’s Highway.
· Mature Trees along the banks of all three rivers: The felling of mature trees should be avoided. If it is unavoidable, any trees that are removed from the area should be replaced by trees of the same species. |
Specified
Resources / during construction phase |
Contractor |
|
Ö |
|
- |
# 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 and , O – Operation, and Dec
– Decommissioning
Table 13.13.9 Implementation Schedule for Other EIA
Requirements
EIA Ref # |
Environmental Protection Measures / Mitigation Measures |
Location / Timing |
Implementation Agent |
Implementation Stages* |
Relevant Legislation and Guidelines |
||
Des |
C |
O |
|||||
- |
Environmental Monitoring and Audit (EM&A) ·
Site
inspection shall be carried out regularly by the Environmental Team (ET) to
inspect construction activities to ensure that the recommended environmental
protection and pollution control mitigation measures are properly
implemented. Details of the requirements and procedures in conducting site
inspections are given in the EM&A Manual. ·
On
the receipt of any complaints, the Environmental Team Leader (including
co-operation s required from other parties) shall promptly undertake
investigation work and the necessary actions carried out as based on the
results of the investigation. Details of the recommended complaints handling
procedures and actions are given in the EM&A Manual. |
Work
Site/ During
construction period |
Contractor and ET |
|
Ö |
|
- |
# 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 and, O – Operation,
and
Dec - Decommissioning
Table 13.1 Implementation
Schedule for Construction Dust Control
Table 13.2 Implementation
Schedule for Construction Noise Control
Table 13.3 Implementation
Schedule for Water Quality Control
Table 13.4 Implementation
Schedule for Waste Management Implications
Table
13.5 Implementation Schedule for Land Contamination
Table
13.6 Implementation Schedule for Ecological Requirements
Table
13.7 Implementation Schedule for Landscape and Visual
Table
13.8 Implementation Schedule for Cultural Heritage
Table
13.9 Implementation Schedule for Other EIA Requirements
13 IMPLEMENTATION
SCHEDULE OF THE PROPOSED MITIGATION MEASURES