Table C.1 Implementation Schedule for Air Quality Control
EIA Ref # |
EM&A Ref |
Environmental Protection Measures
/ Mitigation Measures |
Objectives of the Recommended
Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards
for the measure to achieve |
||||||||||||||||
Des |
C |
O |
Dec |
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Construction Phase |
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For
the Whole Project (include TCS, TKL, PSK & TKOL Development, WCR, CBL,
Road P2 and Road D4 Flyover) |
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S3.8.1 |
2.9.3 |
The Air Pollution Control (Construction Dust)
Regulation shall be implemented and good site practices shall be
incorporated in the contract clauses to minimize construction dust
impact. A number of practical
measures are listed below: ·
Use of regular
watering to reduce dust emissions from exposed site surfaces and unpaved
road, with complete coverage, particularly during dry weather; ·
Use of frequent
watering for particularly dusty static construction areas and areas close to
ASRs; ·
Side enclosure and
covering of any aggregate or dusty material storage piles to reduce
emissions. Where this is not
practicable owing to frequent usage, watering shall be applied to aggregate
fines; ·
Open stockpiles shall
be avoided or covered. Where possible,
prevent placing dusty material storage piles near ASRs; ·
Tarpaulin covering of
all dusty vehicle loads transported to, from and between site location; ·
Establishment and use
of vehicle wheel and body washing facilities at the exit points of the site; · Provision of wind shield and dust extraction units
or similar dust mitigation measures at the loading points, and use of water
sprinklers at the loading area where dust generation is likely during the
loading process of loose material particularly in dry seasons/periods; · Imposition of speed controls for vehicles on unpaved
site roads. Ten kilometers per hour
is the recommended limit; · Where possible, routing of vehicles and positioning
of construction plant should be at the maximum possible distance from ASRs;
and · Instigation of an environmental monitoring and
auditing program to monitor the construction process in order to enforce
controls and modify method of work if dusty conditions arise. |
To reduce dust impact arising from
the Project at the ASRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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|
TM on EIA process, APCO, Air Pollution
Control (Construction Dust) Regulation |
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S3.8.2 |
2.9.4 |
Strictly limit the truck speed on site not more than
10 km per hour and watering the haul roads at least 4 times a day. |
Reduce 75% dust generation from
haul roads within PSK site formation (levelling & filling) and
construction of WCR |
Haul roads within PSK site
formation & construction of WCR / during construction |
CEDD’s Contractor |
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Ö |
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|
TM on EIA process, APCO, Air Pollution
Control (Construction Dust) Regulation |
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S3.8.2 |
2.9.4 |
Strictly limit the truck speed on site not more than
10 km per hour and water spraying to keep the haul roads in wet condition. |
Reduce 90% dust generation from
haul roads within WCR reclamation works phase 2 & 3 |
Haul roads Within WCR reclamation
works phase 2 & 3 / during construction |
CEDD’s Contractors |
|
Ö |
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|
TM on EIA process, APCO, Air Pollution
Control (Construction Dust) Regulation |
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Operational Phase |
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For WCR |
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S3.8.3 |
2.9.5 |
Eastern Portal Ventilation Building located at the end of eastern portal of WCR shall take 70% of the tunnel emission from eastbound carriageway in the WCR tunnel. The exhaust vent shaft should be designed to exhaust in upward direction with exit velocity of 16m/s and the exhaust height should be at least 25m above ground level. |
To reduce eastern portal emission
from WCR tunnel to nearby ASRs |
Eastern Portal Ventilation
Building/ During design, construction &
operation phases |
CEDD |
Ö |
Ö |
Ö |
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S3.8.3 |
2.9.5 |
The Mid-ventilation building shall take 90% of the tunnel emission from westbound carriageway in the WCR tunnel, and should be relocated from Tiu Keng Leng to the proposed reclamation area near CBL/WCR/Road P2 Interchange. The mid-ventilation building on the reclamation area should be at least 350 m to south of Ocean Shores. The exhaust vent shafts of the ventilation building would still be upward direction with the exit velocity of 16 m/s, and release height still be 6 m above ground. |
To reduce western portal emission
from WCR tunnel to nearby ASRs |
Mid-Ventilation Building/ During design, construction &
operation phases |
CEDD |
Ö |
Ö |
Ö |
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# 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
Table C.2 Implementation Schedule for
Noise Control
EIA Ref # |
EM&A Ref |
Environmental Protection Measures
/ Mitigation Measures |
Objectives of the Recommended
Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards
for the measure to achieve |
|
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Des |
C |
O |
Dec |
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For TCS, TKL, PSK & TKOL Development |
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S4.9.1 |
3.8.1 |
Use of quiet powered mechanical equipment for following tasks: (a) TCS, TKL, PSK & TKOL Development - Mobilisation - Removal of Preloading Mound - Drains, Sewers, Waterworks, Utilities and Roadworks for L651, L661, L662, L671, 672, 673, 681, L721 & L722 - Box Culvert Realignment - Piled Deck at Western Box Culvert - Landscape Works - Rasing of Existing Seawall (for work site in vicinity of NSR 65C2 only) (b) Engineering Infrastructure for TKOL - Northern Cycletrack Footbridge across EC - Cycletrack and Footpath along TKOL - Southern Footbridge across EC (for the work site in vicinity of NSRs 65C2 only) |
To minimize construction noise impact arising from the Project at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.3 |
3.8.2 |
Use of movable noise barrier for following tasks: (a) TCS, TKL, PSL & TKOL Development - Roadworks for L661 & L662 (cantilever barrier for School “65C3”) - Landscape Works - Roadworks for L673 and Road L681 (cantilever barrier for School “67S3” only) - Road L681 (for school “65C2” only) - Drains, Sewers, Waterworks, Utilities for L661 & L662 (for School “65C3” only) |
To minimize construction noise impact arising from the Project at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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For WCR |
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S4.9.1 |
3.8.1 |
Use of quiet powered mechanical equipment for following tasks: (a) Reclamation Phase 1 - Filling behind seawall - Surcharging and Consolidation (Surcharge Removal) - Access Ramp to Tunnel Portal (b) Reclamation Phase 2 - Surcharging and Consolidation (Surcharge Removal) (c) Toll Plaza and At-grade Roads - Road Embankment - Construction of Concrete Pavement - Toll booths and footbridge |
To minimize construction noise impact arising from the WCR at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.1 |
3.8.1 |
(d) Section between Western Portal and Road A - Excavation at Tunnel Portal - Site Formation and construction of New Lam Tin Ambulance Deport - Ambulance Depot Construction - Clearance and Demolition of Ambulance Deport - Foundation Works for Bridge Abutment and Piers - Bridge Deck Construction - Drainage and Utilities Works, at-grade Road Construction, Roadworks and Signage - Installation of noise barriers / enclosures - Landscape Works (e) Section between Road A and VFP - Excavation Works, Cut and Cover tunnel - Piling Works, Pile Caps, Columns, Abutment Construction - Bridge Deck Construction |
To minimize construction noise impact arising from the WCR at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.3 |
3.8.2 |
Use of movable noise barrier for following tasks: (a) Section between Western Portal and Road A - Clearance and Demolition of Ambulance Depot - Foundation Works for Bridge Abutment and Piers - Bridge Deck Construction |
To minimize construction noise impact arising from the WCR at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.3 |
3.8.2 |
- Roadworks & Signage and Noise barrier installation - Excavation at Tunnel portal (for School “StA” only) - Site formation for New Lam Tin Ambulance Deport (for School “StA” only) - Filling at ex-EHC Casting Basin (for “StA” only) (b) Section between Road A & VFP - Bridge Deck Construction |
To minimize construction noise impact arising from the WCR at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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For CBL |
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S4.9.1 |
3.8.1 |
Use of quiet powered mechanical equipment for following tasks: (a) Viaduct Section (Bridges A, B & C) - Piling Works, Pile Cap & Column, Bridge Deck and Roadworks & Signage (b) Road Section along Area 86 - Drainage, Waterworks and Utilities Works - Roadworks and Signage, Noise Barrier Installation and Landscape Works - Laying of 300mm diameter watermain along Wan Po Road (c) WCR/CBL/Road P2 Interchange - Bridge Deck Construction, Roadworks & Signage - Natural terrain mitigation works and Landscape Works |
To minimize construction noise impact arising from the CBL at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.3 |
3.8.2 |
Use of movable noise barrier for following tasks: Road Section along Area 86 - Noise Barrier Installation - Laying of 300mm diameter watermain along Wan Po Road |
To minimize construction noise impact arising from the CBL at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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For Road P2 and Road D4 Flyover |
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4.9.1 |
3.8.1 |
Use of quiet powered mechanical equipment for following tasks: (a) Road D4 Flyover - Piling Works, Pile Cap & Column Construction, Bridge Deck Construction - Drainage, Waterworks, Utilities, Roadworks & Landscape Works (b) Road P2 (Depressed Section) - Diaphragm Wall, Piling Works, Wall & Slab Construction - Decking Construction - Pumping Station Construction - Drainage, Waterworks, Utilities, Roadworks (c) Road P2 (At-Grade Section) - Drainage, Waterworks, Utilities Works - Road Works & Landscape Works |
To minimize construction noise impact arising from the Road P2 and Road D4 Flyover at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.3 |
3.8.2 |
Use of movable noise barrier for following tasks: (a) Road P2 (Depressed Section) - Diaphram Wall, Piling Works, Wall & Slab Construction - Decking Construction - Pumping Station Construction - Roadworks (b) Road P2 (At-grade Section) - Roadworks |
To minimize construction noise impact arising from the Road P2 and Road D4 Flyover at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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For the Whole Project (include TCS, TKL, PSK & TKOL Development, WCR, CBL, Road P2 and Road D4 Flyover) |
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S4.9.5 |
3.8.3 |
Adoption of good site practices listed below: ·
Noisy equipment and activities shall be sited by the
contractor as far from sensitive receivers as is practical. ·
Intermittent noisy activities shall be scheduled to
minimize exposure of nearby NSRs to high levels of construction noise. ·
Idle equipment shall be turned off or throttled down. ·
Noisy equipment shall be properly maintained and used
no more often than is necessary. |
To minimize construction noise impact arising from the Project at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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S4.9.5 |
3.8.3 |
·
Construction activities shall be planned so that
parallel operation of several sets of equipment close to a given receiver is
avoided; ·
Where possible, the numbers of concurrently operating
items of plant shall be reduced through sensitive programming; and · A noise monitoring programme shall be instigated. |
To minimize construction noise impact arising from the Project at the affected NSRs |
Work site / during construction |
CEDD’s Contractors |
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Ö |
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NCO, TM on EIA Process |
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Operation Phase |
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For TCS, TKL, PSK & TKOL Development |
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S4.9.12 |
3.8.5 |
For Pak Shing Kok (Area 78), a 5m high boundary wall at the site boundary of Area 78E facing Wan Po Road and Road L781 is also recommended (refer to Figure 4.7 of EIA Report Volume 2). Due to site constraint, the setback requirement at Area 78E should not be less than 50m from site boundary facing Wan Po Road and junction of Wan Po Road/Road L781. 10m setback from the footpath of Road L781 for Area 78A |
To reduce traffic noise impact on Area 78 from Wan Po Road |
Area 78 / during design stage & operation phase |
PlanD |
Ö |
Ö |
Ö |
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TM on EIA Process |
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S4.9.13 |
3.8.6 |
- A 100m long cantilevered barrier (5.5m high vertical barrier with 4 m cantilever length at 45 degrees), located at at-grade Road L861; - A 30m long cantilevered barrier (5.5m high vertical barrier with 4.5m cantilever length at 45 degrees), located at-grade Road L861; -
low noise surfacing on at-grade Road L861 eastbound
and westbound (~230m in length) as indicted in figure 4.7 of EIA Report
Volume 2. |
To reduce traffic noise impact on Area 86 MTRC Development |
Area 86 / during design stage & operation phase |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
TM on EIA Process |
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S4.9.15 |
3.8.7 |
10 – 15m setback from the footpath of Chi Shin Street for Planned Area 65B (R2) and Area 65C (OU) |
To reduce traffic noise impact on Area 65B & 65C |
Area 65B & 65C/ during design stage & operation phase |
PlanD |
Ö |
Ö |
Ö |
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S4.5.14 |
3.8.12 |
Two proposed landscape decks over Road P2 near Area 72 |
To reduce traffic noise impact from Road P2 on Area 72 |
Area 72/ during design stage & operation phase |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
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TM on EIA Process |
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S4.9.16 |
3.8.8 |
Measures such as installation of air conditioning and appropriate window glazing, according to the Class Assessment Document for Standards School by Arch SD, are recommended for the affected school represented by NSRs 65C1 – 65C3, 67S4 – 67S6, 74S1 – 74S6 and school facades at Area 86. |
To reduce traffic noise impact on affected NSRs |
Affected schools/ during design stage & operation phase |
Arch SD |
Ö |
Ö |
Ö |
|
TM on EIA Process, Class
Assessment Document for Standard Schools |
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S4.9.19 |
3.8.7 |
For planned residential and educational institutes and other specified use development, podium, setback from source lines and/ or boundary walls are recommended to alleviate traffic noise impacts. · 3 m high boundary wall for Educational Institute Areas (Area 67 and Area 74S). · 14 m setback from the footpath of Tong Chun Street for Area 66 – Site 66D. · 15 m setback from the footpath of Road L673 for Area 67. |
To reduce traffic noise impacts on TKO Town Centre South Development |
TKO Town Centre South / during the design stage and operation phase |
PlanD, Arch SD |
Ö |
Ö |
Ö |
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Class Assessment Document for
Standard Schools |
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For WCR |
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S4.9.17 |
3.8.9 |
Low noise surfacing material on slip road S2 to S4 and part of Cha Kwo Ling Road, and part of Road A (detail see Figure 4.6) |
To reduce traffic noise impact on affected NSRs |
Kowloon section of WCR / before operation of WCR |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
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TM on EIA Process |
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S4.9.17 |
3.8.9 |
A 210 m long Cantilevered Barrier, 6L2 (6 m high vertical barrier with 3.5 m horizontal cantilever length), located at the edge of the parapet of the eastbound carriageway of WCR (~ CH 4220 – CH4430) |
To reduce traffic noise impact on affected NSRs |
Kowloon section of WCR / before operation of WCR |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
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TM on EIA Process |
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S4.9.17 |
3.8.9 |
A 105 m long Partial Enclosure (6 m high) for the eastbound carriageway of WCR (CH4430 – CH4535) |
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S4.9.17 |
3.8.9 |
A 285 m long Full Enclosure ( 6 m high) for both carriageways of WCR (CH4435 – CH4720) |
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S4.9.17 |
3.8.9 |
Two 80 m long Cantilevered Barrier, 6L1 (6 m high vertical barrier with 5 m horizontal cantilever length), located at both edges of the parapet of the two carriageways of WCR (CH4720 – CH4800) |
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S4.9.16 |
3.8.9 |
A 40 m long Full Enclosure (6m high ) for both carriageways of WCR (CH4800 – CH4840) |
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S4.9.17 |
3.8.9 |
A 100 m long Full Enclosure (5.5m high) for both carriageways of WCR (CH4900 – CH5000) |
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S4.9.17 |
3.8.9 |
A 460 m long Partial Enclosure (5.5 m high) covering both carriageway, located at the edge of parapet of westbound carriageway of WCR (CH5056 – CH5516) |
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S4.9.17 |
3.8.9 |
A 250 m long Cantilevered Barrier, 5.5L1 (5.5 m high vertical barrier with 3 m cantilever length at 45° to the horizontal), located at the edge of the parapet of the west of the Slip Road EHC 2 (~ CH 070 – CH 320) |
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S4.9.17 |
3.8.9 |
A 70 m long Cantilevered Barrier, 5.5L2 (5.5 m high vertical barrier with 3.5 m horizontal cantilever length), located at the edge of the parapet of the west of the Slip Road EHC 3 (~ CH 100 – CH 170) |
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S4.9.17 |
3.8.9 |
A 235 m long partial enclosure (5.5 m high
vertical barrier with 3.5 m horizontal cantilever length), located at the
edge of the parapet of the west of the Slip Road EHC 3 (~CH 170 – CH405) |
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S4.9.17 |
3.8.9 |
A 7 m high partial enclosure covering both carriageways of Road A (CH 530 – CH 650) instead of the 130 m long cantilevered barrier (CNB-A) of Road A, which was proposed in the “Feasibility Study for Development at CKL Kaolin Mine Site” |
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S4.9.17 |
3.8.9 |
A 65 m long and 3 m high vertical transparent
barrier, with a setback distance (refer to Figure 4.6b of EIA Volume 2) from
Cha Kwo Ling Road Roundabout. The
installation of the barrier subject to confirmation from the temple owner, DO
and AMO in the implementation stage. |
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For Road D4 Flyover |
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S4.9.19 |
3.8.7 |
A 200 m long and
3 m high vertical barrier, along the edge of the parapet of the eastbound
carriageway of Road D4 Flyover (CH230 – CH430) |
To reduce traffic noise impact on affected NSRs |
Road D4 Flyover/ Before operation of Road D4 Flyover |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
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TM on EIA Process |
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For CBL |
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S4.9.21 |
3.8.10 |
For MTRC Area 86 Development, assuming the mitigation measures proposed by the developer to be implemented at the podium along CBL and Road D9, details of proposed barriers and setback is as follows: ·
A 120 m long cantilevered barrier, 5.5L1 (5.5 m high
vertical barrier with 3 m cantilever length at 45° to the horizontal),
located at the kerb of the eastbound carriageway of CBL (CH 9150 – CH 9270). ·
A 140 m long cantilevered barrier, 5.5L5 (5.5 m high
vertical barrier with 1.5 m cantilever length at 45° to the horizontal),
located at the kerb of the eastbound carriageway of the Road D9 (CH 9728 – CH
9868). ·
A 100 m long cantilevered barrier, 5.5L4 (5.5 m high
vertical barrier with 5 m cantilever length at 45° to the horizontal),
located at the central divider of CBL (CH 9300 – CH 9400). ·
A 200 m long cantilevered barrier, 5.5L3 (5.5 m high
vertical barrier with 4.5 m cantilever length at 45° to the horizontal),
located at the central divider of Road D9 (CH 9500 – CH 9700). · A
168 m long cantilevered barrier, 5.5L4 (5.5 m high vertical barrier with 5 m
cantilever length at 45° to the horizontal), located at the central divider
of Road D9 (CH 9700 – CH 9868). |
To reduce traffic noise impact on Area 86 Development from CBL |
CBL / Before operation of CBL |
Funded & Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
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TM on EIA Process |
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For Planned NSRs (Layout have not confirmed during the assessment) |
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S4.8.2 & Table 4.6 |
3.8.11 |
Other than the setback requirements as mentioned above, the following planned residential developments / educational institutes shall fulfill the specified setback requirements. Residential development: Area 78A, 78C, 78E – 10 m setback from site boundary Area 66D - 14 m from site boundary Area 66B & 66C, – 5 m setback from site boundary Education Institutes: Area 78 – 10m setback from site boundary Area 74S – 5m setback from site boundary |
To reduce traffic noise impact on affected NSRs |
Planned Development at Area 78A, 78C, 78E, 66B, 66C, 66D,School at Area 78 & 74S / During design stage |
PlanD (planned residential development) / Arch SD (educational institutes) |
Ö |
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TM on EIA Process |
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4.9.20 |
3.8.8 |
Provision of 5m high vertical barrier for Area 73B subject to the results of the Environmental Assessment undertaken by Housing Authority. |
To reduce traffic noise impact on affected NSRs |
Housing Development at Area 73B / During design stage |
Housing Authority |
Ö |
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WCR Ventilation Building |
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S4.9.26 |
3.8.13 |
Provision of acoustic silencers for the reversible fans (85m3/s reversible fans & 107 m3/s reversible fans) at WCR Eastern Portal Ventilation Building. |
To reduce fixed noise impact on affected NSRs in vicinity of WCR Eastern Portal Ventilation Building |
WCR Eastern Portal Ventilation Building / during design stage and construction stage |
CEDD |
Ö |
Ö |
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||
# 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.
Table C.3 Implementation Schedule for Water Quality Control
EIA Ref # |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|
|||||||||||||||||||||
Des |
C |
O |
Dec |
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Construction Phase
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For WCR
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S5.8.10 |
S4.7
|
Silt
curtain should be installed around the reclamation site.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
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EIAO-TM, WPCO |
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S5.8.12 |
S4.7
|
The
maximum permissible production rates of dredging activities should not exceed
1,400 m3/day for Phase 1 reclamation.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.13 |
S4.7
|
For
filling activities for Phase 1 reclamation, no more than 12 dump cycle should
be performed each day. The maximum
volume of filling per dump cycle should not exceed 250 m3. |
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.14 |
S4.7
|
For
backfilling using public fill, the maximum fine content of fills should not
exceed 5%. |
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.15 |
S4.7
|
For each
reclamation phase, core filling activities should be carried out after
completion of the seawall of that particular phase. |
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.16 |
S4.7
|
Any gaps
that may need to be provided for marine access should be shielded by silt
curtains to control sediment plume dispersion away from the site. |
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.16 |
S4.7
|
Filling
activities for seawall construction should be carried out behind a silt
curtain.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.17 |
S4.7
|
Closed-grab
dredger should be used for dredging.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.18 |
S4.7
|
Properly
maintained closed mechanical grabs should be used for dredging and should be
sealed tightly while being lifted.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.17 |
S4.7
|
All
dredging activities should be carried out behind a silt curtain.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.19 |
S4.7
|
All
barges and hopper dredgers should be fitted with tight seals to their bottom opening
to prevent leakage of materials.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.20 |
S4.7
|
The
decks of all vessels should be kept tidy and free of oil or other substances
that might be accidentally or otherwise washed overboard.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.21 |
S4.7
|
Loading
of barges and hoppers should be controlled to prevent splashing of dredged
materials to the surrounding environment and barges and hoppers should under
no circumstances be filled to a level which would cause overflowing of
material or sediment laden water during loading and transportation
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.22 |
S4.7
|
All
barges and dredgers should maintain adequate clearance between vessels and
the seabed at all states of the tide and should operate at a reduced speeds
to ensure that undue turbidity is not generated by turbulence from vessel
movement or propeller wash.
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.10.2 |
S4.2
|
Water
quality monitoring should be carried out at selected stations before and
during the proposed marine construction works for WCR Reclamation
|
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.23 |
S4.7
|
It
is recommended to conduct the field trial of DCM after completion of the
Phase 1 reclamation so that the trial location can take place in a more
sheltered location behind the Phase 1 seawall.
|
Control
potential impacts from DCM |
Work site/ during design and construction stage |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.24 |
S4.7
|
It is recommended that silt curtains should be
employed during both the DCM field trial and during full-scale DCM for
seawall construction.
|
Control
potential impacts from DCM |
Work site/ during design and construction stage |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.24 |
S4.7
|
A
sand blanket should be placed on top of the mud prior to DCM treatment to
avoid seabed sediment disturbance.
The sand fill layer is to be around 1m deep covering the area of DCM
treatment.
|
Control
potential impacts from DCM |
Work
site/ during design and construction stage |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.25 |
S4.7
|
It
is recommended that the cement slurry injection pressure should be carefully
controlled during the DCM process to prevent leaching out of cement slurry
and the slurry waste should be either properly disposed outside the site or
used for back filling during reclamation after the slurry has solidified.
|
Control
potential impacts from DCM |
Work
site/ during design and construction stage |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.26 |
S4.2,
S4.7 |
It is
recommended to carry out water quality monitoring and audit during the DCM
field trial. |
Control
potential impacts from DCM |
Work
site/ during design and construction stage |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM, WPCO |
|
||||||||||||||||||
S5.8.26 |
S4.7 |
A more
detailed water quality assessment should be carried out based on the monitoring
data of the field trial. All these
should be summarized in a report to be submitted to EPD and AFCD for approval
before starting the DCM operation. |
Control
potential impacts from DCM |
Work
site/ during design and construction stages |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM,
WPCO |
|
||||||||||||||||||
For CBL
and CBL/WCR Interchange |
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
S5.8.27 |
S4.7 |
All
wastewater generated from the piling activities should be collected by a
derrick lighter or other collection system and be treated before controlled
discharge. Spoil should be collected by sealed hopper barges for proper
disposal. |
Control
potential impacts from marine piling activities |
Work
site/ during construction |
CEDD’s
Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|
||||||||||||||||||
S5.8.28 |
S4.7 |
Silt
curtain should be installed around the marine piling activities to reduce the
any impact due accidental release of excavated sediment. |
Control
potential impacts from marine piling activities |
Work
site/ during construction |
CEDD’s
Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|
||||||||||||||||||
For the Whole Project (include TCS,
TKL, PSK & TKOL Development, WCR, CBL, Road P2 and Road D4 Flyover) |
|
|
|
|
|
|
|||||||||||||||||||||||
S5.8.32 |
S4.7
|
There
is a need to apply to EPD for a discharge licence for discharge of effluent
from the construction site under the WPCO. The discharge quality must meet
the requirements specified in the discharge licence. All the runoff and
wastewater generated from the works areas should be treated so that it
satisfies all the standards listed in the TM-DSS. Reuse and recycling of the treated effluent can minimise water
consumption and reduce the effluent discharge volume. The beneficial uses of
the treated effluent may include dust suppression, wheel washing and general
cleaning.
|
Control
potential impacts from construction site effluent |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.29 |
S4.7
|
To
minimize the potential water quality impacts from construction site runoff
and various construction activities, the practices outlined in ProPECC PN
1/94 Construction Site Drainage should be adopted.
|
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.30 |
S4.7 |
Surface run-off from construction
sites should be discharged into storm drains via adequately designed sand/silt
removal facilities such as sand traps, silt traps and sedimentation
basins. Channels or earth bunds or
sand bag barriers should be provided on site to properly direct stormwater to
such silt removal facilities.
Perimeter channels at site boundaries should be provided where
necessary to intercept storm run-off from outside the site so that it will
not wash across the site. Catchpits
and perimeter channels should be constructed in advance of site formation
works and earthworks. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.31 |
S4.7 |
Silt removal facilities, channels
and manholes should be maintained and the deposited silt and grit should be
removed regularly, at the onset of and after each rainstorm to ensure that
these facilities are functioning properly at all times. Any practical options for the diversion
and re-alignment of drainage should comply with both engineering and
environmental requirements in order to ensure adequate hydraulic capacity of
all drains. Minimum distances of 100 m should be maintained between the
discharge points of construction site runoff and the existing TKO saltwater
intake. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.33 |
S4.7 |
Construction works should be
programmed to minimize soil excavation works in rainy seasons (April to
September). If excavation in soil
could not be avoided in these months or at any time of year when rainstorms
are likely, for the purpose of preventing soil erosion, temporary exposed
slope surfaces should be covered e.g. by tarpaulin, and temporary access
roads should be protected by crushed stone or gravel, as excavation
proceeds. Intercepting channels
should be provided (e.g. along the crest / edge of excavation) to prevent
storm runoff from washing across exposed soil surfaces. Arrangements should always be in place to
ensure that adequate surface protection measures can be safely carried out
well before the arrival of a rainstorm. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.34 |
S4.7 |
Earthworks final surfaces should
be well compacted and the subsequent permanent work or surface protection
should be carried out immediately after the final surfaces are formed to
prevent erosion caused by rainstorms.
Appropriate drainage like intercepting channels should be provided
where necessary. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.35 |
S4.7 |
Measures should be taken to
minimize the ingress of rainwater into trenches. If excavation of trenches in
wet seasons is necessary, they should be dug and backfilled in short
sections. Rainwater pumped out from
trenches or foundation excavations should be discharged into storm drains via
silt removal facilities. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.36 |
S4.7 |
Open stockpiles of construction
materials (e.g. aggregates, sand and fill material) on sites should be
covered with tarpaulin or similar fabric during rainstorms. Measures should be taken to prevent the
washing away of construction materials, soil, silt or debris into any
drainage system. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.37 |
S4.7 |
Manholes (including newly
constructed ones) should always be adequately covered and temporarily sealed
so as to prevent silt, construction materials or debris from getting into the
drainage system, and to prevent storm run-off from getting into foul
sewers. Discharge of surface run-off
into foul sewers must always be prevented in order not to unduly overload the
foul sewerage system. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.38 |
S4.7 |
Good
site practices should be adopted to remove rubbish and litter from
construction sites so as to prevent the rubbish and litter from spreading
from the site area. It is recommended
to clean the construction sites on a regular basis.
|
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.39 |
S4.7 |
Under normal circumstances,
groundwater pumped out of wells, etc. for the lowering of ground water level
in basement or foundation construction, and groundwater seepage pumped out of
tunnels or caverns under construction should be discharged into storm drains
after the removal of silt in silt removal facilities. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.40 |
S4.7 |
Groundwater pumped out during
construction of the northern cycle track footbridge and southern footbridge
as well as the proposed sewage pumping station for TKO landfill development
should be temporarily held in storage tanks on site as the volume is
anticipated to be small. It is
recommended that the groundwater should be collected and tankered off site by
a licensed wastewater collector for treatment and disposal at TKO PTW. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.40 |
S4.7 |
The site investigation works at
the detailed design stage of the Project should include groundwater sampling
and analysis to determine the composition of groundwater. The monitoring results of groundwater
quality should be submitted to EPD and DSD for their approval. Should the groundwater quality be found to
exceed the TM standard for discharge into foul sewers, suitable treatment and
disposal method of contaminated groundwater should be recommended. It is proposed that a packaged treatment
unit be installed at the site should pre-treatment be required. All the required on-site pre-treatment of
the collected groundwater should be implemented to the satisfaction of the
EPD. Sampling should be conducted for
the groundwater to ensure that the groundwater quality meets the TM-DSS prior
to the discharge of groundwater to the TKO PTW. Estimate of the volume of groundwater should be made at the
detailed design stage based on the site investigation data. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during design and construction stages |
CEDD’s
Contractors |
Ö |
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.41 |
S4.7 |
Water used in ground boring and
drilling for site investigation or rock / soil anchoring should as far as
practicable be recirculated after sedimentation. When there is a need for final disposal, the wastewater should
be discharged into storm drains via silt removal facilities. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during design and construction stages |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.42 |
S4.7 |
Wastewater generated from the
washing down of mixing trucks and drum mixers and similar equipment should
whenever practicable be recycled. The
discharge of wastewater should be kept to a minimum. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.43 |
S4.7 |
To prevent pollution from
wastewater overflow, the pump sump of any water recycling system should be
provided with an on-line standby pump of adequate capacity and with automatic
alternating devices. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.44 |
S4.7 |
Under
normal circumstances, surplus wastewater may be discharged into foul sewers
after treatment in silt removal and pH adjustment facilities (to within the
pH range of 6 to 10). Disposal of
wastewater into storm drains will require more elaborate treatment. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.45 |
S4.7 |
All vehicles and plant should be
cleaned before they leave a construction site to ensure no earth, mud, debris
and the like is deposited by them on roads.
A wheel washing bay should be provided at every site exit if
practicable and wash-water should have sand and silt settled out or removed
before discharging into storm drains.
The section of construction road between the wheel washing bay and the
public road should be paved with backfall to reduce vehicle tracking of soil
and to prevent site run-off from entering public road drains. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.46 |
S4.7 |
Bentonite slurries used in
diaphragm wall and bore-pile construction should be reconditioned and reused
wherever practicable. If the disposal
of a certain residual quantity cannot be avoided, the used slurry may be
disposed of at the marine spoil grounds subject to obtaining a marine dumping
licence from EPD on a case-by-case basis. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.47 |
S4.7 |
If the used bentonite slurry is
intended to be disposed of through the public drainage system, it should be
treated to the respective effluent standards applicable to foul sewer, storm
drains or the receiving waters as set out in the WPCO Technical Memorandum on
Effluent Standards. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.48 |
S4.7 |
Water used in water testing to
check leakage of structures and pipes should be reused for other purposes as
far as practicable. Surplus unpolluted water could be discharged into storm
drains. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.49 |
S4.7 |
Sterilization is commonly
accomplished by chlorination.
Specific advice from EPD should be sought during the design stage of
the works with regard to the disposal of the sterilizing water. The sterilizing water should be reused
wherever practicable. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during design and construction stages |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.50 |
S4.7 |
Before commencing any demolition
works, all sewer and drainage connections should be sealed to prevent
building debris, soil, sand etc. from entering public sewers/drains |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.51 |
S4.7 |
Wastewater generated from building
construction activities including concreting, plastering, internal
decoration, cleaning of works and similar activities should not be discharged
into the stormwater drainage system.
If the wastewater is to be discharged into foul sewers, it should
undergo the removal of settleable solids in a silt removal facility, and pH
adjustment as necessary. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.52 |
S4.7 |
Acidic wastewater generated from
acid cleaning, etching, pickling and similar activities should be neutralized
to within the pH range of 6 to 10 before discharging into foul sewers. If there is no public foul sewer in the
vicinity, the neutralized wastewater should be tinkered off site for disposal
into foul sewers or treated to a standard acceptable to storm drains and the
receiving waters. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.53 |
S4.7 |
Wastewater collected from canteen
kitchens, including that from basins, sinks and floor drains, should be
discharged into foul sewer via grease traps capable of providing at least 20
minutes retention during peak flow. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.54 |
S4.7 |
Drainage serving an open oil
filling point should be connected to storm drains via a petrol interceptors
with peak storm bypass. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO |
|||||||||||||||||||
S5.8.55 |
S4.7 |
Vehicle and plant servicing areas,
vehicle wash bays and lubrication bays should as far as possible be located
within roofed areas. The drainage in
these covered areas should be connected to foul sewers via a petrol
interceptor. Oil leakage or spillage
should be contained and cleaned up immediately. Waste oil should be collected and stored for recycling or
disposal in accordance with the Waste Disposal Ordinance. |
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM,
WPCO, WDO |
|||||||||||||||||||
S5.8.56 |
S4.7 |
The
presence of construction workers generates sewage. It is recommended to provide sufficient chemical toilets in the
works areas. The toilet facilities
should be more than 30 m from any watercourse. A licensed waste collector should be deployed to clean the
chemical toilets on a regular basis.
|
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.57 |
S4.7 |
Notices
should be posted at conspicuous locations to remind the workers not to discharge
any sewage or wastewater into the nearby environment. Regular environmental audit on the
construction site can provide an effective control of any malpractices and
can encourage continual improvement of environmental performance on
site. It is anticipated that sewage
generation during the construction phase of the project would not cause water
pollution problem after undertaking all required measures.
|
Control
potential impacts from construction site runoff and land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.58 |
S4.7 |
Contractor
must register as a chemical waste producer if chemical wastes would be
produced from the construction activities. The Waste Disposal Ordinance (Cap
354) and its subsidiary regulations in particular the Waste Disposal
(Chemical Waste) (General) Regulation should be observed and complied with
for control of chemical wastes.
|
Control
potential impacts from accidental spillage of chemical |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO, WDO |
|||||||||||||||||||
S5.8.59 |
S4.7 |
Any
service shop and maintenance facilities should be located on hard standings
within a bunded area, and sumps and oil interceptors should be provided.
Maintenance of vehicles and equipment involving activities with potential for
leakage and spillage should only be undertaken within the areas appropriately
equipped to control these discharges.
|
Control
potential impacts from accidental spillage of chemical |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.60 |
S4.7 |
Disposal
of chemical wastes should be carried out in compliance with the Waste
Disposal Ordinance. The Code of Practice on the Packaging, Labelling and
Storage of Chemical Wastes published under the Waste Disposal Ordinance
details the requirements to deal with chemical wastes. General requirements
are given as follows:
· Suitable containers should be used to
hold the chemical wastes to avoid leakage or spillage during storage,
handling and transport. · Chemical waste containers should be
suitably labelled, to notify and warn the personnel who are handling the
wastes, to avoid accidents. · Storage area should be selected at a safe
location on site and adequate space should be allocated to the storage area. |
Control
potential impacts from accidental spillage of chemical |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO, WDO |
|||||||||||||||||||
S5.8.61 |
S4.7 |
To minimize the potential
water quality impacts from the construction works located at or near any
river channels, natural streams or seafront, the practices outlined in ETWB
TC (Works) No. 5/2005 “Protection of natural streams/rivers from adverse
impacts arising from construction works” should be adopted where
applicable. Relevant mitigation
measures are listed below: · The proposed works should preferably be
carried out within the dry season where the flow in the storm culvert/river
channel/stream is low. · The use of less or smaller construction
plants may be specified to reduce the disturbance to the riverbed. · Temporary sewerage system should be
designed to prevent wastewater from entering the river, streams and sea. · Temporary storage of materials (e.g.
equipment, filling materials, chemicals and fuel) and temporary stockpile of
construction materials should be located well away from any water courses
during carrying out of the construction works. · Stockpiling of construction materials and
dusty materials should be covered and located away from any water courses. · Construction debris and spoil should be
covered up and/or disposed of as soon as possible to avoid being washed into
the nearby water receivers. · Construction activities, which generate
large amount of wastewater, should be carried out in a distance away from the
waterfront, where practicable. · Mitigation measures to control site
runoff from entering the nearby water environment should be implemented to
minimize water quality impacts.
Surface channels should be provided along the edge of the waterfront
within the work sites to intercept the runoff. · Construction effluent, site run-off and
sewage should be properly collected and/or treated. · Any works site inside the storm water
courses should be temporarily isolated, such as by placing of sandbags or
silt curtains with lead edge at bottom and properly supported props to
prevent adverse impact on the storm water quality. · Silt curtain should be installed around
the construction activities for the proposed landing steps at the seafront of
TCS to minimize the potential impacts due to accidental spillage of excavated
materials. · Proper shoring may need to be erected in
order to prevent soil/mud from slipping into the storm
culvert/river/stream/sea. · Supervisory staff should be assigned to
station on site to closely supervise and monitor the works. |
Control
potential impacts from construction works located at or near any storm
culverts or in close proximity of inland water or seafront |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.10.2 |
S4.7 |
Monitoring
of the discharge quality of effluent from land-based construction sites
should be conducted.
|
Control
potential impacts from Land-based construction |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|||||||||||||||||||
Operational Phase |
|
|
|
|
|
|
|
||||||||||||||||||||||
For TCS, TKL, PSK &
TKOL Development |
|
|
|
|
|
|
|
||||||||||||||||||||||
S5.8.2 |
S4.7 |
It is recommended to divert all storm discharges from Catchment M and 60% of the total discharges from Catchment L to the southern boundary of TCS. |
Reduce
water quality impact on the EDC |
EDC
/ during construction |
Contractor,
CEDD |
|
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.3 |
S4.3, S4.7 |
It is recommended to conduct water quality field survey at EDC after the proposed drainage diversion works is completed to confirm the suitability of the proposed recreation uses at EDC. The field survey should be conducted at a frequency of twice per year in dry season and wet season respectively after operation of the drainage diversion works. The suitability of the proposed recreation uses at EDC should be continuously reviewed with reference to the field survey data. After a 3-year operation period, a review should be conducted to determine whether the field survey programme should be discontinued. |
Safeguard
users of secondary contact recreation zone in EDC and Junk Bay |
EDC
/ post-project period |
DSD
or future operator of the secondary contact recreation zone |
|
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.3 |
S4.3, S4.7 |
The proposed secondary contact recreation zone in EDC and Junk Bay should be closed in any event of emergency sewage bypass. It is recommended that relevant government departments including EPD and LCSD shall be informed by DSD as soon as possible of any emergency bypass so that appropriate actions can be taken to prevent any water sports activities to be carried out in EDC and Junk Bay. The Plant operators shall maintain good communications with various concerned parties. A list of address, email address, phone and fax number of key persons in relevant departments responsible for action shall be made available to the plant operators. Water quality monitoring should be carried out by DSD to determine when conditions are suitable for re-opening of the EDC and Junk Bay for recreational purposes. |
Safeguard
users of secondary contact recreation zone in EDC and Junk Bay |
EDC
and Junk Bay / In any event of emergency sewage bypass |
DSD,
EPD, LCSD, future operator of the secondary contact recreation zone |
|
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.5 |
S4.7 |
All cleansing effluent generated from the proposed Pak Shing Kok high level fresh water service reservoir should be collected by a licensed waste collector for proper disposal and should not be discharged into the nearby water environment. |
Control
potential impacts from reservoir cleansing |
Pak
Shing Kok high level fresh water service reservoir |
WSD |
|
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.6 |
S4.7 |
The emergency bypass location of the sewage pumping station for the recreational development at TKO landfill should be designed to be located 500 m away from the TKO saltwater intake. A standby pump should be provided to minimize the potential water quality impact from sewage overflow. |
Control
potential impacts from the emergency bypass |
Sewage pumping
at TKO landfill / during
design and operation stage |
CEDD |
Ö |
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.8 |
S4.7 |
For handling, treatment and disposal of
other operational stage effluent, the practices outlined in ProPECC PN 5/93
should be adopted where applicable.
The following relevant recommendations should be followed: · Drainage outlets provided in open areas
and areas subjected to a substantial amount of wind-blown rain, including
open carparks, balconies, podiums, yards, etc., should be connected to storm
drains. · Drainage outlets provided in covered
areas, including covered podiums and other roofed areas, should be discharged
to foul sewers. · Subsoil drains of slopes, road
embankments and earth retaining structures, and groundwater collection drains
for basements, subways and tunnels, and similar drains, should under normal
circumstances, be connected to storm water drains. Silt removal facilities should be provided where necessary. A separate drainage system that connects
to foul sewers should be provided to collect wastewater from basements,
subways and tunnels and similar areas. · Drainage serving the proposed open lorry
park should be connected to storm water drains via a petrol interceptor that
would allow storm water bypass during peak flow periods. · Drainage serving any covered carparks
should be connected to foul sewers via petrol interceptors. · To prevent hazards from sewage
overflowing from the proposed pumping station for handling sewage arising
from TKO landfill site, sewage pump sumps should be provided with a standby
pump whose capacity should not be less than any of the duty pumps, and duty
pumps should not be required to operate more than 10 on-off cycles per hour. · Surface water drainage should be provided
for discharging storm water off slopes and from open surfaces. Such drainage as normally collected in
open surface channels should be led to storm water drains via silt removal
facilities. Runoff in kerb gutters of
roads or channels of building platforms should pass through a gully pit with
necessary gratings to prevent objects from entering the storm water drains. |
Control
potential impacts from operational stage |
Within
Project Site/ during design and operation stage |
Various |
Ö |
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
S5.8.9 |
S4.7 |
For maintenance of stormwater drainage system, reference should be made to Environment, Transport and Works Bureau (ETWB) Technical Circular (Works) No. 14/2004 “Maintenance of Stormwater Drainage Systems and Natural Watercourses” where applicable. |
Control
potential impacts from operational stage |
Within
Project Site/ during operation stage |
DSD |
|
|
Ö |
|
EIAO-TM, WPCO |
|||||||||||||||||||
For WCR |
|
|
|
|
|
|
|
|
|
|
|||||||||||||||||||
S5.8.7 |
S4.7 |
Sewage generated form the site would be collected in holding tank and transferred by lorry to TKO Preliminary Treatment Works (PTW) for treatment. Transfer of sewage should be arranged within office hours of the TKO PTW to facilitate normal plant operators. The proposed sewage tankering away services should be provided on a regular basis to prevent any discharge of sewage to the nearby storm system. If the future operator of the administration building changes the sewage disposal scheme, using either a pumping scheme or a small treatment plant due to change of development parameter, the proposed holding tank could still be used to withhold the raw sewage in case of emergency. |
Control
potential impacts from operational stage |
WCR
toll plaza / during operation |
Transport
Department / Future
Operator of Administration Building |
|
|
Ö |
|
EIAO-TM, WPCO |
|
||||||||||||||||||
# 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
Table C.4 Implementation Schedule for Terrestrial Ecological Impact
EIA Ref # |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|||
Des |
C |
O |
Dec |
|||||||
For the Whole Project (include TCS, TKL, PSK & TKOL Development, WCR, CBL, Road P2 and Road D4 Flyover) |
|
|
|
|
|
|||||
S7.8.5 |
|
Developments proposed under this Project would have
the potential to directly impact two plant species of conservation interest;
Small Persimmon (Diospyros vaccinioides) in the E-WCR Assessment Area,
and Bamboo Orchid (Arundina chinensis) in the PSK Assessment Area.
Affected individuals of these species should be transplanted to suitable
nearby habitats prior to the construction phase. Transplantation should be
conducted by a suitably qualified botanist/horticulturalist. A detailed
transplantation methodology should be formulated during the detailed design
stage for this Project. |
Protect
plant species of conservation interest |
Works
areas/ prior to construction |
Botanist/ horticulturalist appointed by CEDD |
Ö |
Ö |
|
|
- |
S7.8.6 |
|
Standard good site practice measures should be implemented throughout the construction phase. The measures should include: ·
Placement of equipment
or stockpile in designated works areas and access routes selected on existing
disturbed land to minimise disturbance to natural habitats. ·
Construction
activities should be restricted to work areas that should be clearly
demarcated. The work areas should be reinstated after completion of the
works. ·
Waste skips should be
provided to collect general refuse and construction wastes. The wastes should
be disposed of timely and properly off-site. ·
General drainage
arrangements should include sediment and oil traps to collect and control
construction site run-off. · Open burning on works sites is illegal, and should
be strictly prohibited. |
Minimise
disturbance impacts. |
Works
areas/ construction phase |
CEDD’s
Contractors |
|
Ö |
|
|
- |
S7.8.7 |
|
Construction
and operation phase disturbance impacts are expected to be relatively minor
in all three Assessment Areas. Nevertheless, measures should be implemented
to minimise potential disturbance where possible, particularly during the
construction phase. The following measures are recommended: ·
Use of Quiet
Mechanical Plant during the construction phase should be adopted wherever
possible. ·
General measures to
reduce noise generated during the construction phase (as outlined in Section
4.8.5 of the Report) should be effectively implemented. · Hoarding or fencing should be erected around the
works area boundaries during the construction phase. The hoarding would
screen adjacent habitats from construction phase activities, reduce noise
disturbance to these habitats and also to restrict access to habitats
adjacent to works areas by site workers.
The use of hoarding/fencing would be of most importance in the E-WCR
and PSK Assessment Areas, where it would reduce disturbance to moderate-high
ecological value secondary woodland and moderate ecological value stream
habitats. |
Minimise
disturbance impacts. |
Works
areas/ construction phase |
CEDD’s
Contractors |
|
Ö |
|
|
- |
S7.8.13 |
|
The
implementation of mitigation measures detailed in Section 11 of EIA Report
Volume 1 would minimise impacts to habitats adjacent to works areas resulting
from improper storage of materials or dumping of waste. |
Minimise
impacts resulting from storage/ dumping |
Works
areas/ construction phase |
CEDD’s Contractors |
|
Ö |
|
|
- |
S7.8.14 |
|
Measures
to control dust emissions during the construction phase such as regular
spraying of haul roads should be implemented to minimise impacts to adjacent
vegetation and habitats. Further details of measures to minimise dust and air
quality impacts resulting from the proposed development are presented in Section
3 of EIA Report Volume 1 |
Minimise
dust emissions |
Works
areas/ construction phase |
CEDD’s Contractors |
|
Ö |
|
|
- |
S7.8.15 |
|
Measures
to control potential sedimentation/water quality impacts during the
construction phase should be implemented. Such measures are detailed in
Section 5 of EIA Report Volume 1, and should include: ·
To minimize
sedimentation and soil erosion, soil excavation should be scheduled for the
dry season where practicable. Exposed areas of soil should be covered with
tarpaulin or other material to minimize potential sedimentation. ·
Interceptor channels
should be constructed around the boundaries of works areas to collect site
run-off. Run-off should be routed through silt traps/oil interceptors before
being discharged. · Adequate toilet facilities should be provided for site workers. |
Minimise
sedimentation/ water quality impacts |
Works
areas/ construction phase |
CEDD’s Contractors |
|
Ö |
|
|
- |
S7.8.16 |
|
During
the operation phase, it is recommended that all stormwater drainage from
Residential Developments at Area 78 is routed through silt traps and oil
interceptors prior to discharge into the PSK Stream. |
Minimise
sedimentation/ water quality impacts |
Development
Area 78/ operation phase |
CEDD |
|
Ö |
|
|
- |
S7.8.17 |
|
A
tree survey should be conducted to identify any mature trees potentially
affected by the proposed works. Any felling of mature trees should be
compensated for through planting of standard or heavy standard trees.
Compensatory planting should be provided on at least a 1:1 ratio. |
Mitigate
tree felling |
Works
areas/ design, construction phase |
CEDD |
Ö |
Ö |
|
|
- |
S7.8.18 |
|
Landscaping
works on reclaimed land, newly created slopes and roadsides should
incorporate native plant species that are attractive to wildlife (e.g., trees
producing flowers/fruits that attract avifauna and insects). |
Increase
ecological value of landscaped areas |
Works
areas/ construction phase |
CEDD’s
Contractors |
|
Ö |
|
|
- |
For WCR |
|
|
|
|
|
|
|
|
|
|
S7.8.8 |
|
Adequate fencing/hoarding should be erected around works areas close to the E-WCR Stream during the construction phase. The hoarding/fencing would prevent and minimise disturbance from site workers, the dumping/storage of materials close to the Stream and potential accidental spillage of pollutants into the Stream. |
Minimise
impacts to Neon Goby |
Works
areas/ construction phase |
CEDD’s
Contractors |
|
Ö |
|
|
- |
S7.8.9 |
|
It
is recommended that adult Philippine Neon Gobies are captured from the E-WCR Stream and transferred
to fish tanks prior to the start of the construction phase. In this way, the
habitat conditions of the fishes can be closely monitored and controlled,
thereby maximising the probability of their survival. Following the
completion of Phase I Reclamation Works, the fish would be re-introduced into
the preserved E-WCR Stream. |
Minimise
impacts to Neon Goby |
Works
Areas/ design and construction phase |
Ecologist
appointed by CEDD. |
Ö |
Ö |
|
|
- |
S7.8.10 |
|
Detailed
methodologies for the capture and maintenance of adult Philippine Neon Gobies
from the E-WCR Stream should be drafted during the detailed design stage of
the Project. |
Minimise
impacts to Neon Goby |
n.a./design
phase |
Ecologist
appointed by CEDD. |
Ö |
|
|
|
- |
S7.8.11 |
|
The
design of reclamation works for the WCR have been considered to maintain the
connection between the E-WCR Stream and marine habitats. The alignment of the
reclamation would avoid an area of marine habitat at the base of the E-WCR
Stream. This area would in turn be connected to Junk Bay via a large pipe
(2.5m in diameter) running underneath the proposed reclamation for the
remainder of the construction phase. A permanent culvert of similar size
would be constructed to replace the pipe during operation. |
Minimise
impacts to Neon Goby |
WCR
reclamation/ construction phase |
CEDD’s
Contractors |
|
Ö |
|
|
- |
S7.8.12
& S7.10.3 |
|
Further
surveys of the E-WCR stream should be conducted 1-2 years before construction
works commence. The surveys should record the number of Philippine Neon
Gobies present in the Stream. At least four surveys should be conducted,
covering both the wet and dry seasons. The requirement for construction phase
mitigation measures to minimize impacts to Philippine Neon Gobies should be
reviewed based on the findings of these surveys. |
Minimise
impacts to Neon Goby |
WCR
reclamation / design phase |
Ecologist
appointed by CEDD. |
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, O – Operation, and Dec -
Decommissioning
Table C.5 Implementation Schedule for Marine Ecological Impact
EIA Ref # |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|||
Des |
C |
O |
Dec |
|||||||
For WCR |
|
|
|
|
|
|
|
|
|
|
S8.8.3
& S8.10.2 |
|
The
feasibility of transplanting potentially impacted hard corals from the
reclamation area to suitable nearby habitats is investigated during the
detailed design stage of the Project. To achieve this aim, surveys of the
proposed reclamation area should be conducted during the detailed design
stage, at least 8 months prior to the start of the construction phase. These
surveys should focus on identifying and mapping hard corals that would be
suitable for transplantation (i.e., corals encrusting small boulders of a
manageable size that can be moved by divers with lifting aids). If corals
suitable for transplantation are identified during these surveys, a detailed
transplantation methodology (including monitoring of transplanted corals)
should be drafted during the detailed design stage of the Project. |
Minimise
impacts to corals |
WCR
Reclamation area/ design/ construction phase |
Marine
ecologist appointed by CEDD. |
Ö |
Ö |
|
|
|
S8.8.4 |
|
During construction phase for Phase I
reclamation, mitigation measures used to control water quality (e.g.
deployment of a silt curtain and reduced dredging rate as presented in
Section 5) would serve to protect corals in proximity to the reclamation to
acceptable levels. Construction methods for reclamation would involve filling
within enclosed areas behind seawalls with no dredging required for Phase II
and Phase III of the WCR reclamation. These construction methods are expected
to result in no substantial water quality or marine ecological impacts.
Nevertheless, silt curtains would be deployed and other measures implemented
to minimise any potential water quality impacts during these works. |
Minimise
impacts to corals |
WCR/ Construction
phase |
CEDD’s
Contractors |
|
Ö |
|
|
|
S8.8.5 |
|
Mitigation
is recommended to prevent potentially lethal direct impacts of construction
activities on individual Grassy Puffers, if found stranded in rock pools
within the works area. It is recommended that the rock pool is visited after
each spring tide (i.e. about every 2 weeks) during the construction phase of
the WCR reclamation until the shore is no longer available due to filling
associated with the Project. Any puffers present in the pool should be
captured and transferred to a temporary holding tank. Captured fish should be
returned to the sea outside the project works boundary. Owing to their
defence mechanism of self-inflating, particular care should be employed when
capturing and releasing the puffer fish (i.e. keeping the fish submerged in
water at all times to prevent gulping of air, which could be lethal). Details
of mitigation plans to rescue stranded puffers should be drafted at the
detailed design stage. |
Minimise
impacts to Puffer Fish |
WCR/ Design
and Construction phase |
CEDD’s
Contractors |
Ö |
Ö |
|
|
|
S8.8.7 |
|
To provide
suitable substrata for recolonisation by corals, the seawall of the proposed
WCR was recommended to be of a rubble mound design. Elsewhere in Hong Kong
seawall habitat have been found to be suitable to support coral growth. The
rubble mound seawall consisting of haphazardly arranged boulders is expected
to provide a large amount of hard substrata and increased surface areas for
settlement and recruitment of coral assemblages similar to those previously
recorded from this coast. |
Compensate
for loss of rocky shore and hard sub-tidal substrate. |
WCR/ Construction
phase |
CEDD |
Ö |
|
|
|
|
S8.10.3 |
|
No
unacceptable adverse impact on the medium value coral sites within Junk Bay
are anticipated. Nevertheless, EM&A for these coral sites during dredging
works for Phase I of the WCR reclamation is recommended. Details of EM&A
requirements are provided in the EM&A Manual which includes parameters
for monitoring the health and condition of corals during dredging works of
the Project and management actions and supplemental mitigation measures
should impacts arise. Overall, EM&A would serve the purpose of protecting
coral sites in Junk Bay and ensuring the environmental acceptability of the
Project. |
Protecting coral sites in Junk Bay |
WCR/ Construction
phase |
Marine
ecologist appointed by CEDD. |
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, O – Operation, and Dec - Decommissioning
Table C.6 Implementation Schedule for Fisheries
EIA Ref# |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
||||
Des |
C |
O |
Dec |
||||||||
For WCR
and CBL |
|
|
|
|
|
|
|
|
|
||
S9.6.2 |
|
Dredging, reclamation
and marine construction activities incorporate constraints that serve as
appropriate mitigation to control environmental impacts within acceptable
levels. Since no unacceptable adverse
impacts on fisheries are predicted, there would be no need for
fisheries-specific mitigation measures.
The mitigation measures recommended in Section 5 of this EIA Report
for controlling water quality would serve also to protect fisheries from
indirect impacts and ensure no unacceptable impact on fisheries resources and
operations. |
Control
potential impacts from dredging and filling activities |
Work
site/ during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO-TM, WPCO |
|
# 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
Table C.7 Implementation Schedule for Landscape and Visual Impact
EIA Ref # |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|||
Des |
C |
O |
Dec |
||||||
|
Construction |
||||||||
S10.7 S10.8 |
CM1 - The construction area and contractor’s temporary
works areas should be minimized to avoid impacts on adjacent landscape,
including minimization of impacts on natural slopes. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO
TM ETWBC 14/2002 ETWBC 2/2004 LAO1 D12 |
S10.7 S10.8 |
CM2
- Topsoil, where identified, should be stripped and stored for re-use in the
construction of the soft landscape works, where practical. The Contract Specification shall include
storage and reuse of topsoil as appropriate. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO TM |
S10.7 S10.8 |
CM3
- The potential for soil erosion should be reduced by minimizing the extent
of vegetation disturbance on site and by providing a protective cover (e.g.
plastic sheeting or a grass cover established by hydroseeding) over newly
exposed soil. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO TM |
S10.7 S10.8 |
CM4
- All existing trees shall be carefully protected during construction. Detailed Tree Protection Specification
shall be provided in the Contract Specification. Under this specification,
the Contractor shall be required to submit, for approval, a detailed working
method statement for the protection of trees prior to undertaking any works adjacent
to all retained trees, including trees in contractor’s works areas. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO TM ETWBC 14/2002 ETWBC 2/2004 LAO1 D12 |
S10.7 S10.8 |
CM5
- Trees unavoidably affected by the works shall be transplanted where
practical. A detailed Tree
Transplanting Specification shall be provided in the Contract Specification,
if applicable. Sufficient time for necessary tree root and crown preparation
periods shall be allowed in the project programme. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO TM ETWBC 14/2002 ETWBC 2/2004 LAO1 D12 |
S10.7 S10.8 |
CM6
- Control of night time lighting |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO TM |
S10.7 S10.8 |
CM7
- Use of decorative screen hoarding |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
|
Ö |
|
|
EIAO TM |
S10.7 S10.8 |
CM8
- Minimisation of impact on natural coastline |
Minimize
effects of landscape and visual impacts |
Works
site / during construction |
CEDD’s Contractors |
Ö |
Ö |
|
|
EIAO TM |
|
Operation |
|
|
|
|
|
|
|
|
S10.7 S10.8 |
OM1
- Stepped building height profile |
Minimize
effects of landscape and visual impacts |
TCS /
during construction and operation |
PlanD,
TPB or DLO |
Ö |
Ö |
Ö |
|
EIAO TM TPO |
S10.7 S10.8 |
OM2
- Network of open spaces linking
residential areas of TKO and Tiu Keng Leng with the waterfront, Town Park and
Landfill area. The network should
continue along the waterfront to form a continuous, uninterrupted link |
Minimize
effects of landscape and visual impacts |
TCS and
TKL / during construction and operation |
Funded
& Implemented by LCSD. Maintained by LCSD and other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM TPO ETWBTC
2/2004 |
S10.7 S10.8 |
OM3
- Sensitive architectural design of
elevated and built structures, including paved surfaces, retaining walls,
columns, buildings, and other structures on Road P2, Western Coast Road and
Cross Bay Link with particular regard to form and finishes. ACABAS approval shall be required. |
Minimize
effects of landscape and visual impacts |
Road
P2,WCR, CBL / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM ACABAS |
S10.7 S10.8 |
OM4
- Sensitive integration of road
embankments with surrounding ground level. |
Minimize
effects of landscape and visual impacts |
WCR, CBL
and Road P2 / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 |
S10.7 S10.8 |
OM5
- Lighting of roads and bridges should be
designed to minimize glare to all receivers. Poles and fittings should be
designed to conform with the bridge design and subject to ACABAS approval. |
Minimize
effects of landscape and visual impacts |
WCR, CBL
and Road P2 / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM ACABAS |
S10.7 S10.8 |
OM6
- Size and extent of noise barriers and
enclosures should be reduced as much as possible. Where noise barriers are unavoidable, sensitive architectural
styling and chromatic treatment of the noise barriers is important in
minimizing their visual impact on motorist and in elevated views from surrounding
residential receivers. The advice
from ACABAS should be fully incorporated. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM, ACABAS |
S10.7 S10.8 |
OM7
- Sensitive hard landscape design along
roadsides, with particular regard to the creation of an attractive and
user-friendly pedestrian environment. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 |
S10.7 S10.8 |
OM8
- The two deck-overs over Road P2 should
be designed as attractive landscape decks.
Structural design of the deck should allow for adequate soil depth to
permit tree planting (1.5m min). The
appropriate maintenance agencies shall be involved in the approval of the
design of the deck-over. |
Minimize
effects of landscape and visual impacts |
Road P2 /
during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD, LCSD and other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 ETWBC 25/92 |
S10.7 S10.8 |
OM9
- Attractive design of pedestrian subways
and bridges, including murals. ACABAS
approval shall be required. |
Minimize
effects of landscape and visual impacts |
TKL and
TCS / during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD. |
Ö |
Ö |
Ö |
|
EIAO TM ACABAS ETWBTC
2/2004 |
S10.7 S10.8 |
OM10
- Tree, shrub and climber planting
adjacent to roads and structures with particular regard to softening and
screening of roads and noise barriers in low level views from adjacent
areas. Provision of shade trees along
footpaths, and climbing plants against abutment walls and viaduct columns. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction and operation |
Funded
& Implemented by CEDD. Maintained by LCSD and other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 25/92 ETWBTC 2/2004 |
S10.7 S10.8 |
OM11
- Woodland/amenity tree and shrub
planting should be implemented adjacent to the Western Coast Road where it is
at grade. This will include cut and fill slopes. |
Minimize
effects of landscape and visual impacts |
WCR /
during construction and operation |
Funded
& Implemented by CEDD. Maintained by LCSD and / or AFCD and other Govt
Depts in accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 |
S10.7 S10.8 |
OM12
- Any unavoidable geotechnical works for
slope stabilization should employ methods causing minimal visual intrusion,
such as some types of soil nailing.
Sprayed concrete finishes must not be used where viable alternatives
are available. Cut slopes shall be
planted with woodland trees and shrubs to compensate for vegetation lost
during construction. Where rock cut
slopes are created bio-engineering techniques shall be used to reduce
their visual impact. |
Minimize
effects of landscape and visual impacts |
WCR /
during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD, LCSD and other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM GEO
1/2000 ETWBC 2/2004 |
S10.7 S10.8 |
OM13
- Non-invasive climbing plants should be used to soften the appearance of
viaduct columns at ground level. |
Minimize
effects of landscape and visual impacts |
WCR, CBL
and Road P2 / during construction and operation |
Funded
& Implemented by CEDD. Maintained by LCSD and other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 |
S10.7 S10.8 |
OM14
– Predominantly native shrub planting
should be undertaken to screen the proposed works and blend it into the
landscape where appropriate |
Minimize
effects of landscape and visual impacts |
PSK and
WCR / during construction and operation |
Funded
& Implemented by CEDD. Maintained by LCSD and / or other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBC 2/2004 |
S10.7 S10.8 |
OM15 - Tree, planting along roadside amenity strips and central dividers to
provide structure planting for the townscape. |
Minimize
effects of landscape and visual impacts |
Works
site / during construction and operation |
Funded
& Implemented by CEDD. Maintained by LCSD and / or other Govt Depts in
accordance with ETWBTC 2/2004 |
Ö |
Ö |
Ö |
|
EIAO TM ETWBTC
2/2004 ETWBC 25/92 |
S10.7 S10.8 |
OM16 - Sensitive architectural design
to the toll plaza buildings should be implemented to reduce their visual
impact and make them compatible with the surrounding
coastal environment. This is to
include the use of clay tiles of a dark earth-tone colour that harmonises
with the local landscape context to provide texture and pattern to building
surfaces as well as helping to minimize any visual impact |
Minimize
effects of landscape and visual impacts |
WCR /
during construction and operation |
Funded
& Implemented by CEDD. Maintained by HyD |
Ö |
Ö |
Ö |
|
EIAO TM ACABAS |
S10.7 S10.8 |
OM17 – The
massing of new building developments should provide for breezeways in
accordance with the current approved Outline Development Plans. |
Minimize
effects of landscape and visual impacts |
TCS /
during construction and operation |
Implemented
by PlanD/TPB & DLO |
Ö |
Ö |
Ö |
|
EIAO TM TPO Lease
Conditions |
# 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
Table C.8 Implementation Schedule for Waste Management Implications
EIA Ref # |
EM&A Ref |
Environmental Protection Measures/Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location/ Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|||||
Des |
C |
O |
Dec |
|||||||||
For WCR |
|
|
|
|
|
|
|
|
|
|||
S11.6.3 |
|
Dredged Marine Sediments During transportation and disposal of the dredged marine sediments, the following measures should 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 DEP. · Barges or hopper barges shall not be filled to a level that would cause the overflow of materials or sediment-laden water during loading or transportation |
To
minimize potential impacts on marine water quality |
WCR
Phase 1 Reclamation / During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
ETWB TCW No. 34/2002 |
||
For the Whole Project (include TCS,
TKL, PSK & TKOL Development, WCR, CBL, Road P2 and Road D4 Flyover) |
|
|
|
|
|
|||||||
S11.6.4 |
|
Recommendations for good site practices during the construction activities include: · Nomination of an approved person, such as a site manager, to be responsible for good site practices, 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 of waste · Appropriate measures to minimise windblown litter and dust during transportation of waste by either covering trucks or by transporting wastes in enclosed containers · Regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors |
To
ensure proper waste management |
Work
site / During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
Waste
Disposal Ordinance (Cap.54) WBTC
No.21/2002, ETWB TCW No. 15/2003 |
||
S11.6.5 |
|
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 · Encourage collection of aluminium cans by individual collectors by providing separate labelled bins to enable this waste to be segregated from other general refuse generated by the work force · Proper storage and site practices to minimise the potential for damage or contamination of construction materials · Plan and stock construction materials carefully to minimise amount of waste generated and avoid unnecessary generation of waste |
To
achieve waste reduction |
Work
site / During the construction period |
CEDD’s Contractors |
Ö |
Ö |
|
|
WBTC
No.4/98, 5/98 |
||
S11.6.7 |
|
General Refuse General refuse should be stored in enclosed bins or compaction units separate from C&D material. A reputable waste collector should be employed by the contractor to remove general refuse from the site, separately from C&D material. Preferably an enclosed and covered area should be provided to reduce the occurrence of 'wind blown' light material. |
To
ensure proper management of general refuse |
Work
site / During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
Public
Health and Municipal Services Ordinance (Cap. 132) |
||
S11.6.8 |
|
Construction and Demolition
Material ·
In order to
minimise the impact resulting from collection and transportation of C&D
material for off-site disposal, the C&D material from the excavation
works for road formation and engineering infrastructure should be reused
on-site as backfilling material as far as practicable. In addition, granitic rock generated from
the tunnelling works for WCR should be exported for recycling for aggregate. · A Waste
Management Plan should be prepared and this WMP should be submitted to the
Engineer for approval. One may make
reference to ETWB TCW No.15/2003 for details. · A
recording system for the amount of wastes generated, recycled and disposed
(including the disposal sites) should be proposed. · In
order to monitor the disposal of C&D and solid wastes at public filling
facilities and landfills and to control fly-tipping, a trip-ticket system
should be included. One may make reference to ETWB TCW No.31/2004 for
details. |
To
ensure proper management of C&D material |
Work
site / During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
ETWB TCW
No.34/2002 |
||
S11.6.9 |
|
Chemical Wastes If
chemical wastes are produced at the construction site, the Contractor would
be required to register with the EPD as a Chemical Waste Producer and to
follow the guidelines stated in the Code of Practice on the Packaging,
Labelling and Storage of Chemical Wastes.
Good quality containers compatible with the chemical wastes should be
used, and incompatible chemicals should be stored separately. Appropriate labels should be securely attached
on each chemical waste container indicating the corresponding chemical
characteristics of the chemical waste, such as explosive, flammable,
oxidizing, irritant, toxic, harmful, corrosive, etc. The Contractor shall use a licensed
collector to transport and dispose of the chemical wastes, to either the
Chemical Waste Treatment Centre at Tsing Yi, or another licensed facility, in
accordance with the Waste Disposal (Chemical Waste) (General) Regulation |
To
ensure proper management of chemical waste |
Work
site / During the construction period |
CEDD’s Contractors |
|
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, O - Operation and Dec – Decommissioning
Table C.9 Implementation Schedule for Cultural Heritage
EIA Ref# |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
||||
Des |
C |
O |
Dec |
||||||||
For CBL |
|
|
|
|
|
|
|
|
|
||
S13.6.2 |
|
Marine Archaeology A visual diver survey is recommended to be undertaken during the detailed design stage of the Project. The diver survey should include: ·
A
series of transect dives along the western shore which was not covered by the
marine geophysical survey. ·
Circular
searches on Target 1 as shown in Figure 13.1 of EIA Report Volume 2. |
To ascertain the archaeological potential of Target 1 and
the areas to be reclaimed but not covered under the marine geophysical survey |
Target 1 and the areas to be reclaimed but not covered
under the marine geophysical survey / Before commencement of construction period |
CEDD’s Contractors |
Ö |
|
|
|
Guidelines
for MAI |
|
For WCR |
|
|
|
|
|
|
|
|
|
||
S13.6.4 |
|
Built Heritage · A temporary fenced off buffer zone with allowance for public access (minimum 1 m) should be provided around the Cha Kwo Ling Tin Hau temple and Law Mansion. ·
Monitoring of the vibration impacts should be conducted when the construction works are
less than 50m from the temple and the mansion. |
To prevent the damage of Cha Kwo Ling Tin Hau temple and
Law Mansion |
Worksite
/ During construction period |
CEDD’s
Contractors |
|
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, O – Operation, and Dec - Decommissioning
Table C.10 Implementation Schedule for Landfill Gas Hazard
EIA Ref # |
EM&A Ref |
Environmental Protection Measures / Mitigation Measures |
Objectives of the Recommended Measures & Main Concerns |
Location / Timing |
Implementation Agent |
Implementation Stages* |
What requirements or standards for the measure to achieve |
|||
Des |
C |
O |
Dec |
|||||||
For the
Whole Project |
|
|
|
|
|
|
|
|
||
S14.60 |
|
All personnel who work on the site
and all visitors to the site should be aware of the possibility of ignition of
gas in the confined spaces such as manholes, chambers and excavations. Safety notices should be displayed at
prominent position around the site.
Adequate fire extinguisher equipment and fire resistant clothing
should be made available on site. |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
Landfill Gas Hazard Assessment Guidance Note
(EPD/TR8/97) & Code of Practice on Safety and Health at Work in Confined
Space |
S14.60 |
|
Service runs within the
consultation zone should be designated as “special routes” and utilities
companies should be informed of this and should implement precautionary
measures |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
Landfill Gas Hazard Assessment Guidance Note
(EPD/TR8/97) & Code of Practice on Safety and Health at Work in Confined
Space |
S14.60 |
|
Precautionary measures to minimize
landfill gas hazard on-site: · No smoking or burning should be
allowed. · Training should be given to all
relevant construction workers. · No worker shall work alone at any
time in the confined space or any excavation trenches · Construction equipment shall be
equipped with a vertical exhaust at least 0.6 m above ground level and /or
with apark arrestors · Permit to Work procedures to be
adopted for welding, flame cutting or other hot works in trenches or confined
spaces ·
Close all valves immediately after piping assembly
or conducting construction. · Routine
monitoring should be conducted in all excavations to ensure the works area to
be free of landfill gas before any man enters the area. |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the design and construction period |
CEDD’s Contractors |
Ö |
Ö |
|
|
Landfill Gas Hazard Assessment Guidance Note
(EPD/TR8/97) |
S14.60 |
|
Where there are any temporary site
offices, or any equipment stores and mess rooms which have enclosed spaces
with the capacity to accumulate landfill gas, then they should either: · be located on an area which has
been proven to be free of landfill gas (by survey with portable gas
detectors) and monitored manually by the Safety Officer or an approved and
appropriately qualified person to ensure that hazardous concentration of
landfill gas does not occur; or · be raised clear of the ground with
a minimum clear separation (as measured from the highest point on the
ground surface to the underside of lowest floor joist) of 500mm. |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the design and construction period |
CEDD’s Contractors |
Ö |
Ö |
|
|
Landfill Gas
Hazard Assessment Guidance Note (EPD/TR8/97) |
S14.60 |
|
Portable gas detectors should be used to regularly check the levels of methane, carbon dioxide and oxygen in depressions, trenches and other excavations. Minimum frequency would be twice a day (e.g. the morning before site works commence and after the lunch break) during all excavation works. |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the construction period |
CEDD’s Contractors |
|
Ö |
|
|
Landfill
Gas Hazard Assessment Guidance Note (EPD/TR8/97) |
S14.60 |
|
If elevated LFG level is measured during monitoring at depressions trenches and other excavations, ventilation of such excavations should be taken place and sources of ignition should be kept away from areas where build-up of gas is possible. |
Safety & Health of the workers |
Work site
within 250m consultation zone/ During the construction period |
CEDD’s
Contractors |
|
Ö |
|
|
Landfill Gas
Hazard Assessment Guidance Note (EPD/TR8/97) |
S14.61 |
|
Procedures should be established for pre-entry monitoring for ducts, manholes, and chambers in accordance with the requirements of the Factories and Industrial Undertaking (Confined Spaces) Regulation, where applicable. Training should be provided to all the maintenance workers. |
Safety & Health of the workers |
Work
site within 250m consultation zone/ During the operational period |
Utility Companies |
|
|
Ö |
|
Landfill Gas Hazard Assessment Guidance Note
(EPD/TR8/97) & Code of Practice on Safety and Health at Work in Confined
Space |
S14.61 |
|
Atmosphere within utility manholes and chambers should be checked for methane, carbon dioxide and oxygen prior to entry. |
Safety & Health of the workers |
Work
site within 250m consultation zone/ During the operational period |
Utility companies |
|
|
Ö |
|
Landfill Gas
Hazard Assessment Guidance Note (EPD/TR8/97) & Code of Practice on Safety
and Health at Work in Confined Space |
S14.61 |
|
Routine landfill gas surveillance exercise should be undertaken by the utility companies when there are inspection at the manholes and chambers. Undertaken for the duration of the site occupancy, or until such time that EPD agree that surveillance is no longer required and this should be based on all the available monitoring data for methane, carbon dioxide and oxygen. |
Safety & Health of the workers |
Work
site within 250m consultation zone/ During the operational period |
Utility companies |
|
|
Ö |
|
Landfill
Gas Hazard Assessment Guidance Note (EPD/TR8/97) & Code of Practice on
Safety and Health at Work in Confined Space |
S14.61 |
|
If elevated LFG level is measured during monitoring at depressions trenches and other excavations, ventilation of such excavations should be taken place and sources of ignition should be kept away from areas where build-up of gas is possible. |
Safety & Health of the workers |
Work
site within 250m consultation zone/ During the operational period |
Utility companies |
|
|
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, O – Operation, and Dec - Decommissioning