CIVIL ENGINEERING AND DEVELOPMENT DEPARTMENT PROJECT PROFILE
Container Terminal 10 Development
Page i July 2008
CONTAINER TERMINAL 10 DEVELOPMENT
PROJECT PROFILE
JULY 2008
CIVIL ENGINEERING AND DEVELOPMENT DEPARTMENT
CIVIL ENGINEERING AND DEVELOPMENT DEPARTMENT PROJECT PROFILE
Container Terminal 10 Development
Page ii July 2008
TABLE OF CONTENTS
1 BASIC INFORMATION ............................................................................................................1
1.1 Project Title .........................................................................................................................1
1.2 Purpose and Nature of Project.............................................................................................1
1.3 Name of Project Proponent .................................................................................................2
1.4 Location and Scale of Project and History of Site...............................................................2
1.5 Number and Types of Designated Projects to be covered by the Project Profile................2
1.6 Name and Telephone Numbers of Contact Person..............................................................3
2 OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME...........................4
2.1 Project Implementation and Timetable ...............................................................................4
3 POSSIBLE IMPACTS ON THE ENVIRONMENT ................................................................5
3.1 General ................................................................................................................................5
4 POSSIBLE ENVIRONMENTAL IMPACTS DURING CONSTRUCTION ........................6
4.1 Air Quality...........................................................................................................................6
4.2 Noise....................................................................................................................................6
4.3 Water Quality ......................................................................................................................6
4.4 Waste Management and Land Contamination ....................................................................7
4.5 Ecology and Fisheries .........................................................................................................7
4.6 Cultural Heritage .................................................................................................................8
4.7 Landscape and Visual Quality.............................................................................................9
4.8 Risk Assessment …….…………………...…..…..……………………….………………9
5 POSSIBLE ENVIRONMENTAL IMPACTS DURING OPERATION...............................10
5.1 Air Quality.........................................................................................................................10
5.2 Noise..................................................................................................................................10
5.3 Water Quality ....................................................................................................................10
5.4 Waste Management ...........................................................................................................10
5.5 Ecology and Fisheries .......................................................................................................11
5.6 Cultural Heritage ...............................................................................................................11
5.7 Landscape and Visual Quality...........................................................................................11
5.8 Glare ..................................................................................................................................11
5.9 Risk Assessment................................................................................................................11
6 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT.................................13
7 ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED ...............14
7.1 Air Quality Impact.............................................................................................................14
7.2 Noise Impact......................................................................................................................14
7.3 Water Quality Impact ........................................................................................................14
7.4 Sediment Management ......................................................................................................15
7.5 Waste Management Implications ......................................................................................15
7.6 Ecological and Fisheries Impact........................................................................................15
7.7 Cultural Heritage Impact ...................................................................................................16
7.8 Landscape and Visual Impact............................................................................................16
7.9 Glare Impact ......................................................................................................................16
7.10 Risk Assessment................................................................................................................17
8 USE OF PREVIOUSLY APPROVED EIA REPORTS.........................................................18
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LIST OF DRAWING
Drawing No. PW-GS08-007 Proposed Container Terminal 10 – Preliminary Feasibility Study
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Container Terminal 10 Development
Page 1 July 2008
1 BASIC INFORMATION
1.1 Project Title
1.1.1 Container Terminal 10 (CT10) Development at Southwest Tsing Yi
1.2 Purpose and Nature of the Project
1.2.1 To develop a container terminal including back-up areas on a proposed reclamation site and
a proposed land formation site at Southwest Tsing Yi subject to the feasibility and site
availability of re-provisioning of affected facilities including oil depots.
1.2.2 The scope of the Project includes the following major works:
� Dredging, construction of seawalls, and reclamation to provide an approximately 180
ha land platform for the development of a container terminal, back-up areas, essential
infrastructure, supporting facilities and re-provisioning of affected facilities including
oil depots;
� Site formation and geotechnical works to provide an approximately 130 ha land
platform for the development of a container terminal, back-up areas, essential
infrastructure, supporting facilities and re-provisioning of the affected facilities
including oil depots;
� Dredging, construction of seawalls, reclamation, site formation, geotechnical works
and construction of essential infrastructure for off-site re-provisioning of oil depots;
� Dredging and realignment of navigation fairways and maintenance dredging during
the operational phase of CT10;
� Construction of quay decks and foundations;
� Construction of waterfront trans-shipment centre for oil and liquefied petroleum gas
(LPG) facilities;
� Construction of interchanges to provide connections between Route 3, Route 8 and
the proposed Tsing Yi Lantau Link, associated road and utilities diversion works and
associated re-provisioning works for the affected facilities;
� Construction of roads, footpaths, roadside planters, signage and road markings, road
lighting, etc. and all other associated roadworks;
� Construction of temporary roads and stormwater drainage system for the reclamation
and land formation works;
� Construction of stormwater drainage system, and extension/re-alignment of existing
box culverts and drainage channels;
� Construction of sewerage system including twin rising mains, gravity sewers and
sewage pumping stations, and extension/re-alignment of existing sewage outfalls;
� Construction of water supply system including fresh and salt water supply mains, fire
hydrants, service reservoirs and salt water pumping stations;
� Provision of public utility services including IT/telecommunication connections;
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� Provision of associated environmental mitigation measures;
� Landscape works and tree preservation scheme; and
� Environmental monitoring.
1.3 Name of Project Proponent
1.3.1 Civil Engineering Office, Civil Engineering and Development Department has undertaken
to carry out a preliminary feasibility study and associated site investigation for re-
provisioning, land formation and infrastructure works to determine the feasibility of
developing the proposed CT10 at Southwest Tsing Yi.
1.4 Location and Scale of Project and History of Site
1.4.1 The Southwest Tsing Yi site is located on the southwestern part of Tsing Yi island, on the
eastern edge of the Ma Wan Channel. The CT10 will be developed on a proposed
reclamation site of 180 ha and a proposed land formation site of 130 ha at Southwest Tsing
Yi. The proposed location of CT10 is shown on Drawing No. PW-GS08-007 at Enclosure 1.
It is intended to provide not less than eight 400m long berths. The exact layout of the
proposed CT10 and the required reclamation and land formation are subject to further study
and will be confirmed after detailed investigation.
1.4.2 The existing site of Southwest Tsing Yi mainly comprises industrial facilities and container
related and Government facilities such as oil depots, dockyards, mid-stream sites, godown
sites, bus depot, fire station, WSD service reservoir, open storage areas, vehicles repair area
and electricity generation station. The total area of the existing oil depots at Southwest Tsing
Yi is approximately 58 ha. All or some of these oil depots will need to be relocated to allow
the CT10 development to take place. The exact number and the extent of affected facilities
including oil depots are subject to further study and will be confirmed after detailed
investigation.
1.4.3 Under the preliminary feasibility study, an initial assessment of re-provisioning sites will be
conducted to ascertain their feasibility in broad term. Subject to the feasibility and site
availability of re-provisioning of affected facilities including oil depots, another project
profile for application for a separate EIA study brief for decommissioning, construction and
operation of oil depots will be submitted. Re-provisioning site(s) will be subject to
subsequent detailed investigation and another environmental impact assessment.
1.5 Number and Types of Designated Projects to be Covered by the Project Profile
1.5.1 The Project comprises a Schedule 3 Designated Project (DP) as an engineering feasibility
study of this development project with a study area covering more than 20 ha, which
requires an EIA report. The Project also includes Schedule 2 DPs that, under the EIAO,
require Environmental Permits (EPs) to be granted by the DEP before they may be either
constructed or operated. The EIA study for this Schedule 3 DP will identify the exact types
of Schedule 2 DPs to be included in the Project. It is expected that the following elements
under this Project would be classified as Schedule 2 DPs and are covered in this Project
Profile:
� Distributor roads (considered as a DP under Schedule 2, Part I, A.1 of the EIAO)
� A container terminal (including its container backup facility) (considered as a DP
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under Schedule 2, Part I, B.3 of the EIAO)
� Reclamation works (including associated dredging works) more than 5 ha in size
(considered as a DP under Schedule 2, Part I, C.1 of the EIAO)
� Decommissioning of dockyards (considered as a DP under Schedule 2, Part II, 17 of
the EIAO)
� Re-provisioning of dockyards (considered as a DP under Schedule 2, Part I, B.6 of the
EIAO)
1.6 Name and Telephone Number of Contact Person
Name: Ms. PANG, Alice (Civil Engineering Office, Civil Engineering and
Development Department)
Telephone No: 2762 5627
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2 OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME
2.1 Project Implementation and Timetable
2.1.1 The CT10 development at Southwest Tsing Yi will be implemented to a fast track
programme. It is anticipated that the preliminary feasibility study would commence in early
2009 for completion in early 2011. The preliminary feasibility study will be carried out by
consultants to be appointed.
2.1.2 Interactions with broader programme requirements or other proposed/committed projects
(all of which are subject to confirmation by the relevant project proponents) that shall be
considered in the EIA Study include:
� Tsing Yi Lantau Link.
� Harbour Area Treatment Scheme (HATS).
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3 POSSIBLE IMPACTS ON THE ENVIRONMENT
3.1 General
3.1.1 Whilst, currently, details of the various development components have yet to be worked out,
the preliminary feasibility study will adopt a proactive approach in minimizing the likely
environmental impacts through landuse and transport planning. The following are possible
impacts on the environment arising from the CT10 development:
� Construction work will involve reclamation, construction of surcharge, handling and
stockpiling of excavated materials for roadworks, drainage and waterworks, etc.,
concreting works, remediation works during decommissioning of oil depots and
construction traffic movements on unpaved roads. These activities will increase the
levels of dust. Moreover, during the operation phase, vehicular emissions from
increased numbers of vehicles on new roads could cause air quality impact.
� Quay cranes, plant and machinery used as well as non-mechanical construction
activities will generate increased noise levels. Major noise sources would include
civil works and general construction activities. During the operational phase, traffic
noise would be generated from the increased number of vehicles, especially heavy
goods vehicles such as container tractors and trailers, using the new roads.
Operational noise associated with quay cranes and various trading/logistic/business
activities within the CT10 would be a concern.
� Waste generated during the construction phase and decommissioning of oil depots
would comprise excavated materials, construction waste, contaminated mud/soil,
chemical waste and general refuse, with associated dust and odour emissions, noise,
potential hazards and water pollution.
� Reclamation works and potentially polluted runoff may result in water quality and
marine ecological impacts.
� Reclamation works may affect areas of potential marine archaeological deposit which
have not been investigated and/or adequately studied previously.
� Reclamation may result in changes in hydrodynamic and flow regime in a number of
water bodies in Hong Kong. Possible impacts on water quality of major flow channels,
in particular, the dispersion of HATS effluent, will need to be studied.
� As large quantity of contaminated (and uncontaminated) mud may be generated,
potential sites will need to be identified to accommodate the disposal. Also, source of
fill material will be identified. If marine sand is required, potential sites and their
environmental impacts will be assessed. Quantity of marine sediment arising from the
regular maintenance dredging during operational phase of the CT10 will also be
assessed.
� The proposed reclamation may affect the existing drainage outfalls and the hinterland
drainage system. As such , a drainage impact assessment will need to be conducted.
� Landscape and visual impacts may arise from the CT10 development.
� High mast lighting resulting from the potential 24-hour 7-day per week operation of
the CT10 may cause glare impact.
� There is a possibility of cumulative environmental impacts as a result of concurrent
projects undertaken near the CT10 development.
� Risk to life may arise during construction and operation of the CT10 due to adjacent
operating oil depots.
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4 POSSIBLE ENVIRONMENTAL IMPACTS DURING CONSTRUCTION
4.1 Air Quality
4.1.1 Subject to detailed investigation, the nearest residential air sensitive receivers (ASRs) are on
Tsing Yi, but are slightly more than 400 m from the boundary of the site. A smaller number
of other facilities (e.g. dockyards and industrial facilities) that are also considered to be
ASRs lying between 100 m and 500 m from the site. For those ASRs that are within 500 m
of the site, there are no significant topographical features between the site and the ASRs.
The prevailing wind direction is easterly. The ASRs are not located down wind of the site.
Possible construction phase air quality impacts would include:
� Fugitive dust arising from the newly reclaimed areas and surcharged areas,
conveyance of filling materials, site formation and geotechnical works, construction
activities, movement of construction traffic over the site area, and wind erosion of
open sites and stockpiling areas.
� Cumulative impact of fugitive dust resulting from any adjacent construction works
that may be implemented at the same time as the CT10 development works.
� Odour generation from dredging and reclamation activities, sediment management
and remediation works to land contamination.
4.2 Noise
4.2.1 Subject to detailed investigation, the nearest residential noise sensitive receivers (NSRs) are
on the eastern side of Tsing Yi, and are more than 300 m from the boundary of the site.
Possible construction noise impacts may result from:
� Neighbouring concurrent construction works.
� The use of powered mechanical equipment on construction site.
� Land traffic, especially heavy vehicles, along site access roads.
� Marine traffic, especially derrick lighters and barges, during transportation and lifting
of construction materials.
� Construction of quay foundations and decks.
� General construction activities associated with site clearance, geotechnical works,
dredging/ reclamation works and works for the provision of infrastructure including
roads and drains.
4.3 Water Quality
4.3.1 During construction, impacts would principally arise from dredging and reclamation works
and realignment of Ma Wan Channel. The proposed method of construction involves
dredging and disposal of marine sediments beneath the seawalls, in order to minimize
subsequent settlement. Reclamation for the container terminal would take place using a
mixture of marine sand and public fill. Dredging will also be required in the approaches to
the proposed container terminal development, to ensure sufficient depth of water to
accommodate vessels of the predicted size. Dredging will be undertaken by grab dredgers
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and/or suction hopper dredgers, and filling by pelican barge or trailer suction hopper
dredgers. The finer portion of fill material and a proportion of dredged mud may be lost to
the surrounding water column, become suspended and transported away from the work area
by tidal currents, creating a sediment plume. Formation of the sediment plume may cause
impacts at nearby sensitive receivers, including those within Victoria Harbour and
surrounding waters. Possible water quality impacts during the construction phase and
disposal of dredged materials off-site would include:
� Change in coastline configuration that may influence the hydrodynamic and water
quality conditions near Ma Wan Channel and western part of Victoria Harbour.
� Temporary elevation in concentration of suspended solids (SS) and generation of
sediment plumes, release of organic and inorganic contaminants and nutrients during
dredging and filling.
� Increase in SS levels and turbidity arising from construction site runoff and
wastewater generated from construction activities.
� Change in sediment deposition rate that could affect the ecological sensitive receivers
in the vicinity to the construction area.
4.4 Waste Management and Land Contamination
4.4.1 There are a number of oil storage facilities in the Southwest Tsing Yi area, and also a
dockyard. The land on which these facilities are sited may be contaminated as a result of
their operation. Potential contaminants include inorganic substances (such as metals) and
organic compounds (such as petroleum hydrocarbons). The most significant potential
contaminants are expected to be petroleum hydrocarbons, which may have entered the soil
as a result of accidental leaks or spillage during operation of the facilities. The actual extent
of contamination cannot be estimated with any certainty, and will be affected by factors
such as operational procedures and the facilities and the history of spillages or other
incidents. There is therefore a wide margin of uncertainty relating to both the lateral and
vertical extent of contamination. However, given the extent and scale of the potentially
contaminative uses, it is expected that large-scale remediation works would be required.
4.4.2 Wastes generated by the construction works are likely to include:
� Site wastes including refuse.
� Sewage from site toilets & canteens.
� Chemical wastes such as waste lubricating oils.
� Construction and demolition materials.
� Dredged sediment.
� Contaminated soil due to decommissioning of oil depots.
Such wastes may result in environmental impacts if not properly controlled/ managed.
4.5 Ecology and Fisheries
4.5.1 Subject to detailed investigation, the main habitat type in developed areas of Southwest
Tsing Yi (i.e., around Tsing Yi Road and associated slopes) is plantation woodland. The
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mid-slope areas above Tsing Yi Road fall within an afforestation site. The area below Tsing
Yi Road, which includes the site area, is almost entirely developed over reclaimed land, and
supports no vegetated habitat of note. Few species of bird of prey of note have been
recorded in the past that may potentially utilize the coastal environs of Southwest Tsing Yi
as a roost and /or feeding ground. From the ecological baseline profile, there would be no
particular issues of concern as regards terrestrial/freshwater ecology. However, it will be
necessary to confirm there will be no adverse cumulative ecological impacts from other
infrastructure developments.
4.5.2 It appears that the immediate site area does not have any natural shoreline although there are
areas of natural shoreline in the vicinity that may be subject to potential impacts from a
change in hydrodynamics and/or water quality from the CT10 development. Subject to
detailed investigation, the Southwest Tsing Yi community could be considered as having
lower than average ecological value compared with other surveyed areas with a similar
character. However, potential induced impacts on inter-tidal communities through
deteriorating water quality from container terminal construction and operation, particularly
dredging of potentially contaminated sediment, and through potential changes in operational
hydrodynamics and/or surface drainage run-off are anticipated. The water quality of the
Gazetted Tung Wan Beach in Ma Wan will need to be studied.
4.5.3 With reference to data provided by Agriculture, Fisheries and Conservation Department, the
marine waters in the immediate study area are not an important habitat for the Chinese
White Dolphin. Accordingly, no significant direct impacts on the Chinese White Dolphin
are anticipated from the CT10 development.
4.5.4 Subject to further study, there would be permanent loss of approximately 180 ha of benthic
habitat and overlying water column off Southwest Tsing Yi. Possible impacts to near shore
waters and fisheries due to dredging and reclamation will also need to be studied.
4.5.5 The only fish culture zone (FCZ) in the vicinity of Tsing Yi is that at Ma Wan. The open-sea
areas east and west of Ma Wan have the highest productivity for adult fish. Potential
induced impacts on fisheries resources from deteriorating water quality, and particularly
dispersal of potentially contaminated sediment towards the sensitive Ma Wan FCZ to the
northwest are anticipated.
4.6 Cultural Heritage
4.6.1 The land-based portions of the site have been developed as oil depots, dockyards, container
related uses and other industrial uses. It is likely that this development has removed any
features of cultural or historical significance that may have existed along the coastline of
Southwest Tsing Yi. There are no graded buildings, deemed or declared monuments of
historical importance either within or near to the site boundary, and no listed archaeological
sites. Potential impact upon areas/ items of significant cultural heritage on land is considered
minimal, as there would be no physical encroachment or interference with known cultural
heritage areas.
4.6.2 In common with other coastal areas of Hong Kong, there is the potential for sites of marine
archaeological interest to be present on the seabed. However, the high flows through the
nearby Ma Wan Channel and the works carried out for the construction of the oil depots and
related berthing facilities are likely to result in an unfavourable environment for the
preservation of significant remains.
4.6.3 Potential marine archaeological deposit if present within the reclamation/dredging area
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would be affected by the proposed reclamation and dredging works off the southwest shore
of Tsing Yi. It is therefore considered necessary to conduct a marine archaeological
investigation (MAI) to ascertain if there are any marine archaeological resources to be
impacted by the marine works.
4.7 Landscape and Visual Quality
4.7.1 The site is segregated from the rest of Tsing Yi by Cheung Tsing Highway, Tsing Yi Road
West and the vegetated uplands of Tsing Yi. The existing uses of the site are predominantly
waterfront industries (oil depots, mid-stream sites, dockyards and container related uses) and
open water. The primary sources of impact may arise from the impingement of views from
both sea and land due to the reclamation works. Such impact should be addressed in the
landscape and visual impact assessment to be carried out under the preliminary feasibility
study. Possible impacts on residential development at Ma Wan will need to be studied.
4.7.2 The landscape character of the area currently consists of waterfront industry, set against the
grass/scrub covered uplands of Tsing Yi. The coastal waters in this vicinity are close to
major shipping channels and hence are characterized by a high density of marine traffic. The
developed nature of this area is further reinforced by the surrounding transport infrastructure
such as Tsing Ma Bridge, Stonecutters Bridge and the proposed Tsing Yi Lantau Link. The
impacts of development of a container terminal on the landscape character of this area is
therefore considered to be limited.
4.8 Risk Assessment
4.8.1 The oil depots are classified as a Potentially Hazardous Installation (PHI). The 1 km radius
PHI consultation zone may impinge upon the CT10 development. Therefore, Quantitative
Risk Assessment (QRA) should be undertaken to ensure that risk associated with oil depots
complies with Government Risk Guidelines in case construction workers of the CT10 is
brought into the consultation zone. The QRA might cover different scenarios during the
phased construction of CT10 at Southwest Tsing Yi and the phased decommissioning of oil
depots.
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5 POSSIBLE ENVIRONMENTAL IMPACTS DURING OPERATION
5.1 Air Quality
5.1.1 Potential operation phase air quality impact would include:
� Emissions of nitrogen dioxide (NO2) and respirable suspended particulates (RSP)
from vehicles (especially heavy vehicles).
� Odour from the sewage pumping stations should be taken into account.
� Emissions from cargo handling equipments powered by diesel fuel, marine vessels
and emissions and the like.
5.2 Noise
5.2.1 Potential operation noise impact would include:
� Traffic noise arising from the new roads for the CT10 development, which may affect
existing and future noise sensitive receivers (NSRs).
� Fixed plant noise sources (such as ventilation exhaust fans, sewage pumping stations,
utilities, etc.) and noise associated with quay cranes, various freight forwarding
activities and movement of containers.
5.3 Water Quality
5.3.1 Given the strategic importance of the HATS outfall, it is noted that the possible impact of
the container terminal development on dispersion and dilution is an issue of concern that
requires detailed examination. Possible impacts on other major sewage and stormwater
outfalls will also need to be studied. Potential operational phase water quality impact would
include:
� Runoff arising from the CT10 development and new roads.
� Change in coastline, due to reclamation, that may influence the hydrodynamic and
water quality conditions.
� Impact on ecological sensitive receivers due to diversion of storm water and sewage
outfalls.
� Pollution due to accidental fuel spillage from marine vessels.
� Sewage generated from the CT10 will be diverted to the Stonecutters Island Sewage
Treatment Works through a new sewerage system and associated impacts are not
expected. Capacity of any public sewerage system to be connected with the new
system will need to be assessed.
� Sediment plume and marine sediment arising from regular maintenance dredging
during operation phase of the CT10.
5.4 Waste Management
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5.4.1 Wastes generated during the operation phase would mainly comprise:
� Industrial and chemical wastes.
� Commercial wastes (from offices and restaurants).
5.4.2 The closest Refuse Transfer Station is located at Sham Shui Kok. Therefore, with suitable
waste management arrangements provided, resulting on-site/off-site impacts are not
expected.
5.5 Ecology and Fisheries
5.5.1 Reclamation would cause permanent loss of sea area. Given the scale and location of the
land use, direct ecological and fisheries impact will need to be assessed. There might be
indirect impact arising from the loss of foraging ground due to reclamation. Potential
indirect fisheries/ecological impact due to changes in water quality or hydrodynamics
induced by reclamation at Southwest Tsing Yi will need to be studied.
5.5.2 Potential pollution sources during the operation phase would be storm water run-off from
the CT10 area, possibly contaminated with oils and other substances draining from road
surfaces. Given the scale and location of the land use for the CT10, pollution impacts on
ecological sensitive receivers and fisheries are minimal.
5.6 Cultural Heritage
5.6.1 Cultural heritage impacts during the operation phase are not expected.
5.7 Landscape and Visual Quality
5.7.1 Landscape and visual impacts during operation would result from the new coastline and
from the CT10 development on the newly reclaimed area. The CT10 would consist mainly
of low-rise industrial development and quay cranes. Impacts would occur primarily from
visual obstruction to views from Ma Wan, Northeast Lantau and hillsides in the hinterland
of Tsing Yi. Landscape and visual impacts from any operational noise mitigation measures
(e.g. noise barriers, if any) of new roads should also be addressed. Impacts on any loss of
natural vegetation and landscape and the impact on the visual context as a result of the loss
of huge area of waterbody will be addressed in the landscape and visual impact assessment
to be carried out under the preliminary feasibility study.
5.8 Glare
5.8.1 Operation of the CT10 would likely be 24-hour, 7-day per week. Floodlights and high mast
lighting installed in the CT10 may generate glare and light pollution to Ma Wan, Northeast
Lantau and hillsides in the hinterland of Tsing Yi.
5.9 Risk Assessment
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5.9.1 The oil depots are classified as a Potentially Hazardous Installation (PHI). The 1 km radius
PHI consultation zone may impinge upon the CT10 development. Therefore, Quantitative
Risk Assessment (QRA) should be undertaken to ensure that risk associated with oil depots
complies with Government Risk Guidelines in case working population of the CT10 is
brought into the consultation zone. The QRA might cover different scenarios during the
phased development of CT10 at Southwest Tsing Yi. .
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6 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT
6.1.1 The major existing and planned sensitive receivers and sensitive parts of the natural
environment that might be affected by the Project include:
� Coastal waters along Southwest Tsing Yi;
� Marine resources (including fisheries and fish culture zone at Ma Wan);
� Visual value of Victoria Harbour, Ma Wan and Northeast Lantau;
� Visual sensitive receivers (including travellers along Tsing Ma Bridge and hillsides in
the hinterland of Tsing Yi; and urban dwellers in North East Lantau, Ma Wan, Tsing
Yi, Sham Tseng and Hong Kong Island West);
� Water quality and amenity value of Tung Wan Beach at Ma Wan;
� Water quality sensitive receivers (such as a seawater intake for Tsing Yi salt water
pumping station at the east of Tsing Yi Island and a private seawater intake system for
flushing of the “Park Island” residential housing estate on Ma Wan Island);
� Proposed Tsing Yi Lantau Link;
� Landscape conservation in Tsing Yi; and
� Low-density and low-rise recreation and tourism development located about 450m to
the north of the proposed CT10 site.
6.1.2 The major elements of the surrounding environment and existing and planned land uses that
might affect the area of new development proposed under the Project and re-provisioning of
oil depots include:
� Route 3 and Route 8;
� Tsing Ma Bridge;
� Proposed Tsing Yi Lantau Link;
� Oil depots in Tsing Yi;
� Ship-building/ship repairing sites;
� Power station and Chemical Waste Treatment Works in Tsing Yi; and
� Marine borrow area and mud disposal facility at South of Tsing Yi.
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7 ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED
7.1 Air Quality Impact
7.1.1 Since no particularly severe impacts are predicted, the mitigation measures required will be
similar to those employed on all major infrastructure projects in Hong Kong, and aimed
mainly at minimizing the generation of dust during construction. Construction dust is not
likely to be an issue, with the implementation of proper dust control and suppression
measures as stipulated in the Air Pollution Control (Construction Dust) Regulation.
7.1.2 Operational air quality impacts arising from traffic on the new roads would be minimized
through incorporation of set-backs, to provide sufficient separation between the major roads
and the air sensitive receivers and the use of marine fuels with lower sulphur contents.
7.2 Noise Impact
7.2.1 With the application of mitigation in the form of quieter alternative mechanical plant,
installation of movable noise barriers, reduction in number of plant and on-time percentage
of powered mechanical equipment, construction noise criteria would be likely to comply
with relevant criteria. Alternative mitigation measures such as quiet construction methods,
scheduling/ phasing of noisy construction works, and other possible measures for reducing
construction noise impact may also need to be explored. Prohibition of carrying out
construction activities during night time period (23:00 – 07:00) may be considered to
alleviate construction noise impact to the surrounding area.
7.2.2 Operational phase traffic noise arising from the new roads, quay cranes and movement of
containers and other goods/ packages in the CT10 would be minimized with the
implementation of noise mitigation measures such as provision of setbacks, berms,
alternative road alignments, appropriate adjustment of site layouts and building design, etc.
Other direct mitigation measures as stipulated in the Technical Memorandum on
Environmental Impact Assessment Process should also be investigated (noise barriers
should be recommended if necessary) to reduce noise impacts to sensitive receivers. In
accordance with the noise assessment for the Hong Kong International Airport conducted by
the Airport Authority, the CT10 would be located outside the noise exposure forecast 25
(NEF25) contour and hence the aircraft noise impact on the development would be
acceptable.
7.3 Water Quality Impact
7.3.1 Mitigation measures considered necessary during dredging and filling operations would
include:
� Installation of silt curtains during dredging works.
� Construction of the seawall in the early stages of the reclamation to effectively
confine sediment release during dredging and filling.
� Reduction of the dredging rate, use of tightly closed grabs, and control of grab
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descent speed to minimize disturbance to the seabed and sediment loss during
dredging and raising of grabs.
� Barges for filling material transportation should be fitted with water tight seals to their
bottom opening to prevent leakage of materials.
7.3.2 For land-based construction activities, water quality impact would be readily mitigated with
the adoption of good site arrangement and management practices.
7.4 Sediment Management
7.4.1 The requirements and procedures for dredged mud disposal under the Environment,
Transport and Works Bureau Technical Circular No. 34/2002 should be followed.
7.5 Waste Management Implications
7.5.1 Environmental protection measures may include minimizing the generation of construction
and demolition (C&D) material, maximizing the use of inert C&D material in reclamation
and other construction works, and minimizing the disposal of dredged sediment (both during
construction and maintenance stage).
7.5.2 A number of potential mitigation measures may be implemented to remediate land
contamination associated with the oil depots and dockyard. There are a number of possible
remedial techniques that may be applicable to any contamination present at Southwest Tsing
Yi. Extensive remediation works would be required if there is widespread contamination of
soil(and possibly also groundwater) with petroleum hydrocarbons.
7.5.3 Waste management measures and good site practices in waste handling, disposal and
transportation should be implemented, in particular, during decommissioning of oil depots.
7.6 Ecological and Fisheries Impact
7.6.1 In general, the mitigation measures recommended for ecology are also applicable to
fisheries. Due to the generally degraded terrestrial and marine ecosystems around Southwest
Tsing Yi, there is limited potential for adverse on-site ecological impacts on habitats and
species of conservation concern. It should be noted that as there will be a net loss of
ecological resources (e.g. benthic habitat at the reclamation site). An opportunity for
ecological enhancement is to maximize the availability of sloping boulder seawalls as an
artificial habitat conducive to colonization by inter-tidal and sub-tidal benthic species and
fisheries.
7.6.2 In general, proper implementation of the good practice measures to control liquid wastes and
water quality will also be effective in avoiding/minimizing the potential for impacts on the
coastal/marine ecosystem.
7.6.3 To reduce impact on the marine environment, closed-grab dredger and silt curtains should
be deployed to minimize impacts. Seawalls with specially designed facing may be
constructed to enhance colonization by marine organisms. Reclamation should be carried
out behind a seawall and only when the seawall is above sea level.
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7.7 Cultural Heritage Impact
7.7.1 An MAI should be conducted by qualified marine archaeologists to assess the marine
archaeological impact to the affected seabed in the terminal. In accordance with the
guidelines from the Antiquities and Monuments Office (AMO), the MAI consists of 4 tasks,
i.e. (1) Baseline Review, (2) Geophysical Survey, (3) Establishing Archaeological Potential,
and (4) Remote Operated Vehicle (ROV)/Diver Survey/Watching Brief. The archaeological
potential of the study area should be firstly identified and established based on the results of
Tasks 1 and 2 in order to facilitate formulation of a strategy for investigation. If there is an
indication of archaeological potential within the study area, Task 4 will be required to be
carried out.
7.8 Landscape and Visual Impact
7.8.1 Impacts could be effectively controlled by careful attention to the extent and form of the
planned reclamation and the type and height of proposed structures to be placed on the
newly reclaimed area. In addition, landscape design of the overall area would help to reduce
impacts. In addition to tree preservation, the following mitigation measures would be
considered for implementation where feasible and necessary:
Roadside Landscaping
� Implementation of roadside planting.
� Use of planted bunds or landscaped berms to screen developments from the
surrounding areas.
Open Space Framework
� Implementation of an open space framework, with green spines and nodes, creating
an attractive landscape environment for the CT10 and the adjoining waterfront.
Noise Barrier Design
� Use of transparent panels to reduce visual obstruction.
� Use of planting adjacent to noise barriers.
� Appropriate colour selection of panels and support structures to relate to other
streetscape structures or surrounds.
� Design of support structures to incorporate a high level of quality and aesthetics.
Opening up views from hillsides in the hinterland of Tsing Yi
� Provision of view corridors as an open spatial connection to the hillsides in the
hinterland of Tsing Yi
� Stepping down building heights along the waterfront to reduce visual obstruction.
7.9 Glare Impact
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7.9.1 For reduction of glare and light pollution, floodlights in particular would need to be
carefully positioned and angled so as to minimize light escape to surrounding non-target
areas. High mast lighting should neither be pointing skywards nor generating glare impact,
which would, in turn, affect safety of aircraft operation. A Glare Impact Assessment should
be undertaken in this respect.
7.10 Risk Assessment
7.10.1 A QRA should be undertaken and risk mitigation measures may be specified to reduce the
risk associated with oil depots. The following risk mitigation measures would be considered
for the CT10 operation where necessary and practicable :
� Locate the high density CT10 working population area away from the oil depots.
� Locate the outdoor working area away from the oil depots.
� Maximize the use of indoor working environment.
� Emergency plan for response to potential oil and LPG leakage events.
� Decommission all/most of the oil depots before construction and operation of CT10.
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8 USE OF PREVIOUSLY APPROVED EIA REPORTS
8.1.1 There are no relevant EIA reports already approved under the EIA Ordinance. However, the
following studies are relevant and will be referred to in the preliminary feasibility study for
CT10 :
� Study on Hong Kong Port – Maser Plan 2020 (completed in 2004)
� Tsing Yi Lantau Link – Feasibility Study (in progress)
� South-East Tsing Yi Port Development – Planning and Engineering Feasibility Study
for Container Terminal No. 9 (completed in 1991)
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LIST OF DRAWING