Appendix 10-1
Implementation Schedule of
recommended Environmental
Mitigation Measures
|
EIA* Ref. |
EM&A Log Ref.* |
Environmental Protection
Measures |
Location/Duration of
Measures/ Timing of Completion of Measures |
Implemen-tation |
Implementation Stage* |
Relevant Legislation & Guidelines* |
|||
|
Des |
C |
O |
Dec |
||||||
|
|
|
Establishment Phase |
|
|
|
|
|
|
|
|
S4.5 |
S4.8 |
Fugitive Dust Emission ·
The dust control measures required under
the Air Pollution Control (Construction Dust) Regulation should be implemented.
Working areas where excavation or earthmoving are taking place shall be sprayed with water or a dust
suppression chemical. Any stockpiling
of excavated material shall be covered by impervious sheeting or sprayed with
water or a dust suppression chemical |
All
construction work areas, especially those located on the northern side of the
site/ During fill bank establishment when dusty activities are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.5 |
S4.8 |
·
Erection of
site hoarding of at least 2.4m high (from ground level) along the northern
side of the site boundary except at the site entrance/exit location |
Northern
site boundary/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.5 |
S4.8 |
·
Installation
of vehicle wheel washing facilities including a high pressure water jet
provided at designated vehicle exit points |
Site
entrance/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.5 |
S4.8 |
·
Paving the
designated main haul roads with concrete, bituminous materials, hardcores or
metal plates |
Main
haul road/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.5 |
S4.8 |
·
The
machinery of the C&DMSF shall be enclosed in a shelter and equipped with
proper dust filtration system (e.g. bag filters) |
C&DMSF/
During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.5 |
S4.8 |
·
The C&DMSF
shall also be designed to facilitate the loading of fill material from public
fill delivery trucks and with drop height minimised to no more than 1m. At
the C&DMSF, the storage areas shall at least be enclosed on three sides |
C&DMSF/
During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM APC(CD)R |
|
S4.7 |
S4.8 |
·
The tipping
hall for transfer of public fill from trucks to barges at the barging point
shall be enclosed on top and three sides |
Barging
Point/ During fill bank establishment |
CED/
Contractor |
Ö |
|
|
Ö |
EIAO-TM APC(CD)R |
|
|
|
* See Notes at
End of Table for Codes |
|
|
|
|
|
|
|
|
S5.4 |
S5.2 |
Construction Noise Impact ·
All
construction works will be carried out during the non-restricted hours (i.e. 7:00
a.m. to 7 p.m. on weekdays other than general holidays) |
All
construction work areas, especially those located on the northern side of the
site/ During fill bank establishment/ When noisy activities are carried out |
Contractor |
|
Ö |
|
|
PN 2/93 |
|
S5.5 |
S5.2 |
·
Before the
commencement of any work that may generate a significant noise impact, the
Contractor shall submit to the Engineer for approval the method of working, equipment
and sound-reducing measures (e.g. use of silenced type of equipment, etc.)
intended to be used |
All
construction work areas, especially those located on the northern side of the
site/ During fill bank establishment/ When noisy activities are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 2/93 |
|
S6.4
& S6.5 |
S7.9 |
Water Quality ·
The existing
drainage channels constructed at TKO Area 137 should be used and realigned to
fit into the design of the fill bank |
Existing
drainage channel/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM PN 1/94
|
|
S. 6.5 |
S7.9 |
·
Before the
complete realignment of the existing channels, earth bunds and sand bag
barriers shall be used to divert flows to the existing/ realigned channel |
All construction
work areas, especially those located near the waterfront on the western and
southern sides/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM PN 1/94
|
|
S. 6.5 |
S7.9 |
·
The
temporary drainage facilities provided shall allow polluted stormwater to be
diverted to existing/ realigned intercepting channels before stockpiling of
public fill should begin. The
intercepting channels shall be equipped with adequately designed sand/ silt
removal facilities to allow the stormwater to be treated before discharge at
the designated outfalls |
All
construction work areas, especially those located near the waterfront on the
western and southern sides/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM PN 1/94 WPCO |
|
S. 6.5 |
S7.9 |
·
Effluent
discharge from the site during the establishment phase shall meet the
relevant discharge limits specified in the Technical Memorandum on Standards for
Effluent Discharged into Drainage and Sewerage Systems, Inland and Coastal
Waters |
Discharge
point/During fill bank establishment/ When construction activities having the
potential to generate a water quality impact are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 1/94 WPCO |
|
S. 6.5 |
S7.9 |
·
Catchpits,
sand and silt removal facilities and intercepting channels provided onsite
should be maintained to ensure proper functioning, and the deposited silt and
grit should be removed weekly at the onset of and after each rainstorm to
ensure that these facilities are functioning at all times |
All
construction work areas/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM PN 1/94
|
|
S7.6 |
S6.3 |
Landfill Gas/ Leachate Migration Hazard ·
The
container office at the site entrance located within the SENT landfill
consultation zone shall be supported by a raised hollow platform to allow passive
ventilation and avoid accumulation of landfill gas beneath the structures |
Within
the SENT Landfill consultation zone/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.6 |
S6.3 |
·
Main site offices
and other site facilities having the potential to trap landfill gas shall be
located outside the SENT landfill consultation zone |
Within
the SENT Landfill consultation zone/ During fill bank establishment |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.6 |
S6.3 |
·
No
underground drainage and sewerage system including underground pipelines and
chambers shall be constructed within the SENT landfill consultation zone |
Within the
SENT Landfill consultation zone/ During fill bank establishment/ When
construction activities such as excavation, trenching and creation of
confined or semi-confined spaces are carried out |
CED/
Contractor |
Ö |
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.6 |
S6.3 |
·
Access by
the general public to the fill bank shall be restricted |
Within
the fill bank/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.3 |
·
The contractor
should be aware of, and should inform supervisor and workers of the risk
nature and associated hazards of landfill gas including fire, explosion and
toxic effect, gas detection method, health effect of leachate and contingency
measures for leachate/ groundwater contamination |
Within
the fill bank/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.3 |
·
Precautions
should be clearly laid down and rigidly adhered for activities such as excavation,
trenching and creation of confined or semi-confined spaces, if any, carried
out within or near the SENT landfill consultation zone |
Within
the SENT Landfill consultation zone/ During fill bank establishment/ When construction
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.3 |
·
In addition
to normal site safety procedures, gas detection equipment and appropriate
breathing apparatus should be available and used when entering confined
spaces or trenches deeper than 2 metres |
Within the
SENT Landfill consultation zone/ During fill bank establishment/ When
construction activities such as excavation, trenching and creation of
confined or semi-confined spaces are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.1 |
·
A Safety
Officer/ Supervisor should be present on site throughout the construction
stage |
Within
the fill bank/ During fill bank establishment |
Contractor |
|
Ö |
|
|
PN 3/96 |
|
S7.8 |
S6.1 |
·
The Safety Officer/
Supervisor should be provided with an intrinsically safe portable
instrument(s), appropriately calibrated and capable of measuring the gases in
the ranges as recommended in the EIA Report |
Within
the fill bank/ During fill bank establishment |
Contractor |
|
Ö |
|
|
PN 3/96 |
|
S7.8 |
S6.1 |
·
A
LFG monitoring programme should be formulated by the Safety Officer/
Supervisor or by a qualified person when construction activities are carried
out. Periodic/routine monitoring should
be conducted during ground-works, in all excavations, and works at confined
spaces, if any. The action plan
recommended in the EIA report should be implemented |
Within
the SENT Landfill consultation zone/ During fill bank establishment/ When
construction activities such as excavation, trenching and creation of
confined or semi-confined spaces are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S7.7 |
S6.4 |
·
During the construction
works for realignment of the existing drainage channels or other construction
activities, should there by any sign of leachate-contaminated groundwater
being encountered, the SENT landfill operation should be informed for the
leachate-contaminated groundwater to be collected and transferred back to the
sewage treatment works of the SENT landfill for treatment by the SENT
operator |
Within
the SENT Landfill consultation zone/ During fill bank establishment / When construction
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
Ö |
|
|
EIAO-TM PN 3/96 |
|
S2.3.4 |
N.A. |
Other Environmental Factors ·
A 2.4m high
site fencing shall be erected along the northern site boundary abutting Fat
Tong Chau to avoid any accidental disturbance of the cultural heritage site
by the workers |
Along
the northern boundary of the site/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM |
|
S2.3.3 |
N.A. |
·
A buffer
zone of at least 10m shall be provided along the eastern boundary of the site
to separate the work areas of the fill bank from the eastern boundary of the
adjacent Clearwater Bay Country Park
|
Along the
northern and eastern boundary of the site/ During fill bank establishment |
Contractor |
|
Ö |
|
|
EIAO-TM |
|
|
|
Operational Phase |
|
|
|
|
|
|
|
|
S4.6 |
S4.8 |
Fugitive Dust Emission ·
Works that involve
the stockpiling of dusty materials are regulated under the Air Pollution Control (Construction Dust)
Regulation as regulatory work. In
accordance with the requirements of the Air
Pollution Control (Construction Dust) Regulation, dust control/ mitigation
measures shall be implemented to ensure full protection of the nearby ASRs |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Working methods
should be devised with consideration of the potential dust generation and
dust control measures required under the Air Pollution Control
(Construction Dust) Regulation and to ensure any installed air pollution
control system and measures are operated and/or implemented in accordance
with their design merits. In the
event of malfunctioning of any control system or equipment, the relevant
dusty activities shall stop until the relevant control system or equipment
are restored to proper functioning |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Frequent
mist spraying should be applied on dusty areas. The frequency of spraying required will depend upon local meteorological
conditions such as rainfall, temperature, wind speed and humidity, the
activity levels at the fill bank.
Mist spaying should be applied to dampen the dusty material without
overwatering |
All
operational work areas, especially those located on the northern side of the
site/ During fill bank operation/ When dusty activities are carried out |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Truck
drivers using the fill bank shall be checked to have a valid dumping licence |
All operational
work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM
|
|
S4.6 |
S4.8 |
·
A buffer
zone of at least 100m shall be maintained between the edge of the stockpiling
area and the nearest ASRs at the TKO Industrial Estate. Within the buffer zone, no dusty material
shall be stockpiled and no loading/ unloading and similar activities should
be allowed |
Buffer
zone/ During fill bank operation |
Contractor |
|
|
Ö |
|
|
|
S4.6 |
S4.8 |
·
Truck speed
limit shall be limited to within 10km per hour |
Site Haul Road/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM
|
|
S4.6 |
S4.8 |
·
Public fill
delivery trucks entering/ leaving TKO Area 137 shall be required to follow a
designated site main haul route that is covered with concrete, bituminous materials,
hardcores or metal plates |
Site Haul Road/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
The main
haul route provided for regular transport of public fill from the barging
point to the C&DMSF shall also be covered with concrete, bituminous
materials, hardcores or metal plates to minimum dust emissions. The designated haul route shall be located
away from nearby ASRs |
Site Haul Road/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Water
lorries and/or road sweepers shall be provided and used in dust
suppression. Frequent watering (at
least three times per day) of the haul roads is necessary. The frequency shall be increased when the weather
is dry, when the truckloads are high, and for haul roads located within 100m
from the northern boundary of the site |
Site Haul Road/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
All dusty fill
material shall be sprayed with water or a dust suppression chemical prior to
loading, unloading or transfer so as to maintain the fill material wet,
except for situations where the moisture content of the dusty material is a
matter of concern |
All operational
work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Frequent
watering (at least three times per day) of the worksites with active dusty operations.
The frequency shall be increased when the weather is dry |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Vehicle washing
facilities including high pressure water jet installed at the existing exit
shall be maintained and operated by designated staff to ensure that these
dust control measures are being used |
Site
entrance/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Before
leaving the fill bank, every vehicle shall be washed to remove any dusty
materials from its body and wheels |
Site
entrance/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Trucks
carrying dusty load entered to the site shall be sprayed with water once the
impervious sheeting covering the load is removed |
Site
entrance/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM
|
|
S4.6 |
S4.8 |
·
Public fill
at the stockpiling area should be handled to avoid segregation,
deterioration, erosion or instability of the material, especially for the
stockpiling surface facing to the north of the site. The portions of site and stockpiling
height allocated and allowed by the project engineers for stockpiling of
public fill shall be followed in the daily operation of the fill bank |
Stockpiling
area/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Temporary
slope surfaces, especially those facing to the north of the site, shall
either be covered with tarpaulin sheeting or other impermeable sheeting, or
sprayed with water or a dust suppression chemical, or protected by other
methods approved by CED. Mist spaying
should be apply to dampen the dusty material without over-watering |
Stockpiling
area/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Final slope
surfaces, especially those facing to the north of the site, shall be treated
by compaction, followed by hydroseeding, vegetation planting or sealing with shotconcrete,
latex, vinyl, bitumen, or other suitable surface stabiliser approved by CED |
Stockpiling
area/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
When belt conveyor
systems are in use for transfer of fill material, the conveyors shall be
enclosed on top and 2 sides. Every
transfer point between any two conveyors shall be enclosed |
Belt
conveyer system/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
An
effective belt scraper shall be installed at the head pulley of every belt
conveyor to dislodge fine particles that may adhere to the belt surface, and
to reduce carrying back of fine particles on the return belt |
Belt
conveyer system/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
The belt
scraper shall be equipped with bottom plates or other similar means to
prevent falling of material from the return belt |
Belt conveyer
system/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
The level
of stockpiling belt conveyor shall be adjustable such that the vertical distance
between the belt conveyor and the material landing point is maintained at no
more than 1m |
Belt
conveyer system/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Dusty material
loaded from a belt conveyor outlet to stockpiles, storage bins, trucks,
barges and other open areas shall be sprayed with water or a dust suppression
chemical |
Belt
conveyer system/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S4.6 |
S4.8 |
·
Loading of
dusty material delivered by barges to the site shall be sprayed with water at
the material landing point. At the
C&DMSF, the loading of material shall be sprayed with water to minimise
dust emission |
C&DMSF
& Barging point/During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM APC(CD)R |
|
S5.5 |
S5.2 |
Fixed Noise Impact
·
The noise
standards specified in the Technical Memorandum for the Assessment of Noise
From Places Other Than Domestic Premises, Public Places or Construction Sites
shall be met |
All
operational work areas, especially those located on the northern side of the
site/ During fill bank operation/ When noisy activities are carried out |
Contractor |
|
|
Ö |
|
NCO
|
|
S3.2 |
S5.2 |
·
The
operating hours of the fill bank shall be restricted to 8:00 a.m. to 9:00
p.m. |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM |
|
S3.2 |
S5.2 |
·
The
operating hours of the barging point and the C&DMSF within the fill bank shall be
restricted to 8:00 a.m. to 7:00 p.m. |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM |
|
S5.5 |
S5.2 |
·
Before the
commencement of any work that may generate a significant noise impact, the
Contractor shall submit to the Engineer for approval the method of working,
equipment and sound-reducing measures (e.g. use of silenced type of equipment,
etc.) intended to be used |
All
operational work areas / During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM |
|
S3.2,
S5.1, S5.5 |
N.A. |
Traffic Noise Impact ·
A marine based
transportation route for public fill shall be provided at TKO Area 137 to
allow public fill to be transported to the site from the planned barging
point in the ex-Kai Tak Airport in addition to land-based access from Wan Po
Road |
Onsite barging
point; barging point at ex-Kai Tak airport barging point / During fill bank
operation |
CED/
Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S3.2,
S5.1, S5.5 |
N.A. |
·
Through the
existing trip-ticket system, truckloads generated from Government/ Public Corporations’
contracts using the proposed fill bank at TKO Area 137, except those
generated within Tseung Kwan O, should be diverted away from Wan Po Road by
using a marine-based access |
Wan Po Road/
During fill bank operation/ When there is public fill intake to the fill bank |
CED/
Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S5.1 |
N.A. |
·
During
the operation-decommissioning overlapping period, delivery of public fill removed
from the fill bank shall all by means of barges |
Onsite
barging point/ During fill bank operation |
Contractor |
|
|
Ö |
Ö |
EIAO-TM |
|
S5.1 |
N.A. |
·
The
temporary fill bank shall not receive further public fill from January 2005
|
All operational
work areas/ During fill bank operation |
Contractor |
|
|
Ö |
Ö |
EIAO-TM |
|
S6.5 |
S7.9 |
Water Quality ·
The
existing/ realigned intercepting channels and the sand/ silt removal
facilities should be used and maintained |
All operational
work areas, especially those located near the waterfront on the western and
southern sides/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Temporary
intercepting drains should be used at the stockpiling area to divert polluted
stormwater to the intercepting channels. Earth bunds and sand bag barriers
shall be used to assist the diversion of polluted stormwater to the
intercepting channels |
All
operational work areas, especially those located near the waterfront on the
western and southern sides/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Effluent
discharged from the site shall meet the relevant discharge limits specified
in the Technical Memorandum on Standards for Effluents Discharged into
Drainage and Sewerage Systems, Inland and Coastal Waters |
Discharge
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94 WPCO |
|
S6.5 |
S7.9 |
·
To
minimise potential water quality impact associated with runoff of polluted
surface water, a buffer distance of at least 100m shall be maintained between
the boundary of the public fill stockpiling area and the sea front |
Along
the northern and eastern boundary of the site/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
A
buffer distance of at least 20m should be maintained between the boundary of
the C&DMSF and the seafront |
Along
the northern and eastern boundary of the site/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Operation
of the C&DMSF shall be served by an effective stormwater intercepting
system. The buffer storage areas at the sorting facility shall
be served by the drainage system for collection of runoff and removal of
suspended solid before the stormwater is discharged to the sea at the
designated outlets |
C&DMSF/
During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94 WPCO |
|
S6.5 |
S7.9 |
·
The
materials temporarily stored at the buffer area of the C&DMSF shall be
minimised by transferring the public fill and C&D waste to the
stockpiling area and SENT landfill especially before rainstorm, and the
materials shall be properly covered when there is any chance for the
materials to be washed away |
C&DMSF/
During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Sorted
material transported to the stockpiling area for storage should not contain
unsuitable material such as organic, soluble material, dangerous or toxic
material, and floatable materials (e.g. bottle, plastic bags, foam box) which
could cause a potential water quality impact |
Stockpiling
area/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Temporary
slope surfaces shall be covered as far as practicable with tarpaulin sheets or
other impermeable sheeting or protected by other methods approved by CED
especially when a rainstorm is imminent or forecast |
Slope
surface/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Final
slope surfaces shall be treated by compaction, followed by hydroseeding,
vegetation planting or sealing with shotconcrete, latex, vinyl, bitumen, or other
suitable surface stabiliser approved by CED to prevent the washing away of
stockpiled material |
Slope
surface/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Existing
and newly constructed catchpits, sand and silt removal facilities and
intercepting channels should be maintained, and the deposited silt and grit
should be removed weekly and on a need basis especially at the onset of and after
each rainstorm to ensure that these facilities are functioning properly at
all times |
All
operational work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
A
wheel washing bay should be provided at the site exit and wash-water should
have sand and silt settled out or removed before being discharged into storm
drains |
Site
entrance/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
The
section of construction road between the wheel washing bay and the public
road should be paved with concrete, bituminous materials or hardcores to reduce
vehicle tracking of soil and to prevent site run-off from entering public
road drains |
Haul
road/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94 |
|
S6.5 |
S7.9 |
·
Sewage
from toilets should be discharged into a foul sewer, or chemical toilets
should be provided |
All
operational work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94 |
|
S6.5 |
S7.9 |
·
Should
the use of chemical toilets be necessary, these should be provided by a
licensed contractor, who will be responsible for disposal and maintenance of
these facilities |
All
operational work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Wastewater
collected from canteen kitchens, including that from basins, sinks and floor
drains, should be discharged into foul sewers via grease traps. If no communal sewer can be provided,
sewage generated from the workforce at the site offices shall be collected by
septic tanks and regularly removed by using vacuum tankers |
All
operational work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Drainage
system provided at car parking areas shall be provided with oil interceptors
in addition to sand/ silt removal facilities |
All operational
work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
The
contractor shall select barges of the right size such that adequate clearance
is maintained between the vessels and the sea bed at all states of the tide
to ensure that undue turbidity is not generated by turbulence from vessel
movement or propeller wash |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
All
vessels used for transportation of fill material should have tight fitting
seals to their bottom openings to prevent leakage of material during
transport |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Relevant
design measures (i)
When
backhoe fixed on an appropriately design flat-top pontoon is in use, the
reach of the backhoe shall be controlled to within the flat-top pontoon of sufficient
length to avoid accidental dropping of public fill into the sea; (ii)
When
hopper barges with mobile crane is in use, guardrails or equivalent shall be
fixed alongside the berthing faces to guide the movement of the crane to
avoid accidental dropping of fill material into the sea; (iii)
When
derrick barges with built-in crane are in use, the reach of the jig shall be
controlled to within the length of the barge to avoid accidental dropping of
public fill into the sea |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94
|
|
S6.5 |
S7.9 |
·
Barges
should not be filled to a level which may cause the overflow of material
during loading or transportation. Barge
effluents should be properly collected and treated before disposal |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 1/94 WPCO |
|
S6.5 |
S7.9 |
·
The
work activities should not cause any visible foam, oil, grease, scum, litter
or other objectionable matters to be present on the water in the vicinity of
the barging point |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM WPCO |
|
S6.5 |
S7.9 |
·
After
the completion of the Stage 2 reclamation works in December 2003, the fill
bank contractor shall be required to provide silt curtains at the outward
side of the basin near the barging point throughout the operational phase when
there is public fill intake by barges.
The silt curtains shall be designed such that they can also function
to confine floating refuse, or separate refuse containment boom should be
provided. A waste collection vessel
should be deployed to remove floating debris on the sea near the fill bank
for proper disposal |
Barging
point/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM
|
|
S6.5 |
S7.9 |
·
Measures
detailed in the ProPECC PN 1/94 on Construction Site Drainage should be
followed |
All
operational work areas/ During fill bank operation |
Contractor |
|
|
Ö |
|
PN 1/94 |
|
S7.8 |
S6.3 |
Landfill Gas Hazard ·
The contractor
should be aware of, and should inform supervisor and workers of the risk
nature and associated hazards of landfill gas including fire, explosion and
toxic effect, gas detection method, health effect of leachate and contingency
measures for leachate/ groundwater contamination |
Within
the SENT Landfill consultation zone/ During fill bank operation |
Contractor |
|
|
Ö |
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.3 |
·
Precautions
should be clearly laid down and rigidly adhered for activities such as excavation,
trenching and creation of confined or semi-confined spaces, if any, carried
out within or near the SENT landfill consultation zone |
Within
the SENT Landfill consultation zone/ During fill bank operation/ When
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
|
Ö |
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.3 |
·
In addition
to normal site safety procedures, gas detection equipment and appropriate breathing
apparatus should be available and used when workers entering confined spaces
or trenches deeper than 2 metres |
Within
the SENT Landfill consultation zone/ During fill bank operation/ When
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
|
Ö |
|
EIAO-TM PN 3/96 |
|
S7.8 |
S6.1 |
·
A Safety
Officer/ Supervisor should be present on site throughout the operational
stage |
Within
the fill bank/ During fill bank operation |
Contractor |
|
|
Ö |
|
PN 3/96 |
|
S7.8 |
S6.1 |
·
The Safety
Officer/ Supervisor should be provided with intrinsically safe portable
instrument(s), appropriately calibrated and capable of measuring the gases in
the ranges as recommended in the EIA Report |
Within
the fill bank/ During fill bank operation |
Contractor |
|
|
Ö |
|
PN 3/96 |
|
S7.8 |
S6.1 |
·
A
LFG monitoring programme should be formulated by the Safety Officer/ Supervisor
or by a qualified person when construction activities are carried out. Periodic/routine monitoring should be
conducted during ground-works, in all excavations, and works at confined
spaces, if any. The action plan
recommended in the EIA report should be implemented |
Within
the SENT Landfill consultation zone/ During fill bank operation/ When
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
|
Ö |
|
EIAO-TM PN 3/96 |
|
S7.7 |
S6.4 |
·
During the
construction works for realignment of the existing drainage channels or other
construction activities, should there by any sign of leachate-contaminated
groundwater being encountered, the SENT landfill operation should be informed
for the leachate-contaminated groundwater to be collected and transferred
back to the sewage treatment works of the SENT landfill for treatment by the
SENT operator |
Within
the SENT Landfill consultation zone/ During fill bank operation/ When activities
such as excavation, trenching and creation of confined or semi-confined
spaces are carried out |
Contractor |
|
|
Ö |
|
EIAO-TM PN 3/96 |
|
S8.12 |
N.A. |
Landscape and Visual ·
The design of
the fill bank and platform heights adopted should allow the fill bank to fit
into the general topography of the surrounding land. Straight edged slopes should be avoided |
Stockpiling
area, barging point and C&DMSF/ During the operational phase of the fill
bank/ When there is public fill intake to the site and stockpiling activities |
CED/ Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S8.10 |
S2.2 |
·
The maximum
stockpiling height at the fill bank shall be limited to a maximum of +35.2mPD |
Stockpiling
area / During the operational phase of the fill bank/ When there is public
fill intake to the site and stockpiling activities |
CED/
Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S8.12 |
N.A. |
·
Surface of
outer slopes of the fill bank shall preferably be hydroseeded or covered with
geo-textile matting of appropriate colour (e.g. dark green/ brown) once
completed. |
Stockpiling
area / During the operational phase of the fill bank/ When there is public
fill intake to the site and stockpiling activities |
CED/
Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S8.12 |
N.A. |
·
The barging
point and the C&DMSF at the fill bank shall not be in operation from 7:00
p.m. to 8:00 a.m. daily to avoid potential visual impact from glare |
Barging
point and C&DMSF/ During the operational phase of the fill bank/ When there
is public fill intake to the site and stockpiling activities |
CED/
Contractor |
Ö |
|
Ö |
|
EIAO-TM |
|
S2.3,
S3.2 |
N.A. |
Other Environmental Factors ·
C&D
waste sorted from mixed C&D material at the C&DMSF shall be removed from
the temporary buffer storage area on a daily basis and transfer to SENT
landfill for disposal |
C&DMSF/
During the operational phase/ When public fill that require sorted is
received at the fill bank |
Contractor |
|
|
Ö |
|
EIAO-TM |
|
|
|
Decommissioning Phase |
|
|
|
|
|
|
|
|
S4.6
& S4.7 |
S4.8 |
Fugitive Dust Emission ·
The dust
control measures recommended for the operational phase shall continue to be
applied during the decommissioning phase of the project |
All decommissioning
work areas, especially those located on the northern side of the site/ During
fill bank decommissioning/ When dusty activities are carried out |
Contractor |
|
|
|
Ö |
EIAO-TM APC(CD)R |
|
S4.7 |
S4.8 |
·
For
excavation activities and removal of fill material, the material handled
shall be sprayed with water or a dust suppression chemical before and after
the operation so as to maintain the entire surface wet |
Stockpiling
area / During fill bank decommissioning/ When dusty activities are carried
out |
Contractor |
|
|
|
Ö |
EIAO-TM APC(CD)R |
|
S4.7 |
S4.8 |
·
All public
fill delivery trucks leaving the fill bank shall be required to be covered entirely
by clean impervious sheeting to ensure that the dusty materials do not leak
from the vehicles |
Site
entrance/ During fill bank decommissioning/ When dusty load is being carried
by trucks |
Contractor |
|
|
|
Ö |
EIAO-TM APC(CD)R |
|
S5.5
& S5.6 |
S5.2 |
Fixed Noise Impact ·
The noise
control measures recommended for the operational phase shall continue to be
applied during the decommissioning phase of the project |
All decommissioning
work areas, especially those located on the northern side of the site/ During
fill bank decommissioning/ When noisy activities are carried out |
Contractor |
|
|
|
Ö |
EIAO-TM NCO |
|
S3.2
& S5.1 |
N.A. |
Traffic Noise Impact ·
A marine based
transportation route for public fill shall be provided at TKO Area 137 to
allow at least 90% of the stockpiled public fill to be transported out of the
site by barges |
Onsite barging
point / During fill bank decommissioning/ When public fill is removed from
the fill bank |
CED/
Contractor |
Ö |
|
|
Ö |
EIAO-TM |
|
S5.1
& S5.6 |
N.A. |
·
Dispatch
rate of trucks delivering the remaining 10% stockpiled public fill off the site
shall be limited to within 200 vehicles/day and 30 vehicles/hour |
Wan Po
Road/ During fill bank decommissioning/ When public fill is removed from the
fill bank |
CED/
Contractor |
Ö |
|
|
Ö |
EIAO-TM |
|
S6.5 |
S7.9 |
Water Quality ·
The
land-based water pollution control measures recommended for the operational
phase shall continue to be applied during the decommissioning phase of the
project. ·
Throughout
the decommissioning phase of the fill bank, a waste collection vessel should be
deployed to remove floating debris on the sea near the fill bank for proper
disposal. |
All
decommissioning work areas, especially those located near the waterfront on
the western and southern sides/ During fill bank decommissioning/ When
decommissioning activities having the potential to generate a water quality
impact are carried out |
Contractor |
|
|
|
Ö |
EIAO-TM PN 1/94
|
|
S7.7
& S7.8 |
S6.1, S6.3, S6.4 |
Landfill Gas Hazard ·
The
landfill gas migration precautionary and protection measures recommended for
the operational phase shall continue to be applied during the
decommissioning phase of the project |
Within the
SENT Landfill consultation zone/ During fill bank decommissioning/ When
activities such as excavation, trenching and creation of confined or
semi-confined spaces are carried out |
Contractor |
|
|
|
Ö |
EIAO-TM PN 3/96 |
|
S8.12 |
N.A. |
Landscape and Visual ·
Stockpiled
public fill should be removed in a sequence to allow the outer hydroseeded |
Stockpiling
area / During the decommissioning phase of the fill bank/ When public fill is
removed from the fill bank |
CED/
Contractor |
Ö |
|
|
Ö |
EIAO-TM |
|
S8.12 |
S2.2 |
·
The barging
point and the C&DMSF at the fill bank shall not be in operation from 7:00
p.m. to 8:00 a.m. daily to avoid potential visual impact from glare |
Barging
point and C&DMSF/ During the decommissioning phase of the fill bank/ When
public fill is removed from the fill bank |
Contractor |
|
|
|
Ö |
EIAO-TM |
|
S4.8 |
S4 |
Environmental Monitoring and Audit
(During establishment, operation and decommissioning) ·
Carry out regular
dust monitoring at the northern site boundary during the establishment,
operation and decommissioning of the fill bank |
All
work sites of the fill bank/ During establishment, operation and
decommissioning/ when dusty activities are carried out |
Carried
out by the ET; checked by the IC(E) |
|
Ö |
Ö |
Ö |
EIAO-TM |
|
S5.7 |
S5 |
·
Carry out
regular auditing on implementation of noise management measures during the
establishment, operation and decommissioning of the fill bank; |
All work
sites of the fill bank/ During establishment, operation and decommissioning/
when noisy activities are carried out |
Carried
out by the ET; checked by the IC(E) |
|
Ö |
Ö |
Ö |
EIAO-TM |
|
S6.8 |
S7 |
·
Carry out water
quality monitoring or review existing data obtained in the ongoing water
quality monitoring during the establishment, operation and decommissioning of
the fill bank |
All
work sites of the fill bank/ During establishment, operation and
decommissioning/ when activities having a potential to generate a water
quality impact is carried out |
Carried
out by the ET; checked by the IC(E) |
|
Ö |
Ö |
Ö |
EIAO-TM |
|
S8.12 |
S8 |
·
Carry out
regular audit to avoid
impacts on landscape and visual resources during the operational and
decommissioning phases |
All
work sites of the fill bank/ During establishment, operation and
decommissioning/ when activities having a potential to generate a landscape/
visual are carried out |
Carried
out by the ET; checked by the IC(E) |
|
Ö |
Ö |
Ö |
EIAO-TM |
|
N.A. |
S9 |
·
Carry out
regular site inspections to audit proper implementation of the recommended
environmental control/ mitigation measures by the contractor to control potential
environmental impact |
All
work sites of the fill bank/ During establishment, operation and
decommissioning/ When activities having a potential to generate a significant
environmental impact are carried out |
Carried
out by the ET; checked by the IC(E) |
|
Ö |
Ö |
Ö |
EIAO-TM |
* EIA Report or
EM&A Manual Section Number;
Des = Detailed
Design Phase;
C = Establishment
Phase;
O = Operational
Phase;
Dec =
Decommissioning Phase;
EIAO-TM =
Technical Memorandum on Environmental Impact Assessment Process;
APC(CD)R = Air
Pollution Control (Construction Dust) Regulation;
PN 2/93 = EPD
Practice Note for Professional Persons (ProPECC PN 2/93) Noise from Construction
Activities – Non-statutory;
PN 1/94 = EPD
Practice Note for Professional Persons (ProPECC PN 1/94) Construction Site
Drainage;
PN 3/96 = EPD
Practice Note for Professional Persons (ProPECC PN 3/96) Landfill Gas Hazard
Assessment for Developments adjacent to Landfills;
NCO = Noise
Control Ordinance (Cap. 400);
WPCO = Water
Pollution Control Ordinance (Cap. 358)