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Development of Anderson Road Quarry Project Profile Civil Engineering and Development Department May 2012
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Development of Anderson Road Quarry Project Profile · Project Profile Development of Anderson Road Quarry Civil Engineering and Development Department - i - May 2012 Project Profile

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Page 1: Development of Anderson Road Quarry Project Profile · Project Profile Development of Anderson Road Quarry Civil Engineering and Development Department - i - May 2012 Project Profile

Development of Anderson Road Quarry

Project Profile

Civil Engineering and Development Department

May 2012

Page 2: Development of Anderson Road Quarry Project Profile · Project Profile Development of Anderson Road Quarry Civil Engineering and Development Department - i - May 2012 Project Profile

Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - i - May 2012

Project Profile

Table of Contents

1. BASIC INFORMATION ................................................................................................. 1

1.1 Project Title ................................................................................................................ 1

1.2 Project Background .................................................................................................... 1

1.3 Purpose and Nature of Project ................................................................................... 1

1.4 Name of Project Proponent ........................................................................................ 1

1.5 Location and Scale of Project .................................................................................... 2

1.6 Number and Types of Designated Project to be Covered by the Project Profile ....... 2

1.7 Name and Telephone Number of Contact Person ...................................................... 2

2. OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME ................ 3

2.1 Project Planning and Implementation ........................................................................ 3

2.2 Project Timetable ....................................................................................................... 3

2.3 Interaction with Other Projects .................................................................................. 3

3. POSSIBLE IMPACT ON THE ENVIRONMENT ....................................................... 3

3.1 Air Quality ................................................................................................................. 3

3.2 Noise .......................................................................................................................... 4

3.3 Water Quality ............................................................................................................. 4

3.4 Solid Waste ................................................................................................................ 4

3.5 Landfill Gas ............................................................................................................... 5

3.6 Ecology ...................................................................................................................... 5

3.7 Cultural Heritage ........................................................................................................ 5

3.8 Land Contamination................................................................................................... 6

3.9 Landscape and Visual................................................................................................. 6

4. MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT ....................... 6

4.1 Air Quality ................................................................................................................. 6

4.2 Noise .......................................................................................................................... 7

4.3 Water Quality ............................................................................................................. 7

4.4 Solid Waste ................................................................................................................ 8

4.5 Ecology ...................................................................................................................... 8

4.6 Land Contamination................................................................................................... 8

4.7 Landscape and Visual................................................................................................. 9

5. ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED IN

THE DESIGN AND ANY FURTHER ENVIRONMENTAL IMPLICATIONS ........ 9

5.1 General ....................................................................................................................... 9

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - i - May 2012

5.2 Air quality .................................................................................................................. 9

5.3 Noise ........................................................................................................................ 10

5.4 Water Quality ........................................................................................................... 11

5.5 Solid Waste .............................................................................................................. 13

5.6 Ecology .................................................................................................................... 14

5.7 Land Contamination................................................................................................. 14

5.8 Landscape and Visual............................................................................................... 15

6. USE OF PREVIOUSLY APPROVED EIA REPORTS .............................................. 16

DRAWINGS

TKZ0743 - DEVELOPMENT OF ANDERSON ROAD QUARRY – INVESTIGATION : THE STUY AREA FOR ENVIRONMENTAL IMPACT ASSESSMENT

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 1 - May 2012

1. BASIC INFORMATION

1.1 Project Title

1.1.1 Development of Anderson Road Quarry

1.2 Project Background

1.2.1 In 1992, the then Development Progress Committee endorsed the hybrid development scheme recommended in the Study on Rehabilitation of Anderson Road Quarries. The Quarry Rehabilitation Contract No. GE/96/10 was signed in 1997 for quarry operation and rehabilitation up to June 2016.

1.2.2 In January 2007, the feasibility of the proposed development at the lower quarry site (the quarry area at the southwest of Anderson Road) was reviewed and confirmed by Civil Engineering and Development Department. The lower quarry site will provide land for public rental housing with a planned population of about 48,300 as well as associated Government, institutional or community facilities and public open space uses on the development platforms. The site formation works is now in progress.

1.2.3 In January 2011, PlanD commissioned a 18 months study, Agreement No. CE 4/2010 (TP) - Planning Study on Future Land Use at Anderson Road Quarry (the Planning Study), to examine the future land use and explore the development potential of the upper quarry area (the quarry area at the northeast of Anderson Road) for residential (including public housing) and other uses and impacts of the proposed developments on the surrounding areas. The Recommended Outline Development Plan proposed under the Planning Study will become the basis of the future development of the upper quarry area and for further engineering investigation and detailed design for the implementation of necessary infrastructural works.

1.3 Purpose and Nature of Project

1.3.1 The area of the upper quarry site is about 86 ha. The target population of the development at the upper quarry site ranges from 22,000 to 30,000 subject to the final recommendation of the Planning Study.

1.3.2 The Project will include the engineering study (the Study) to ascertain the engineering feasibility of implementing the development proposal of the upper quarry site, the associated road improvement works as recommended under the Planning Study.

1.3.3 The Study also includes the environmental impact assessment (EIA) for the development proposal of the upper quarry site, which is the subject EIA of this Project Profile.

1.4 Name of Project Proponent

1.4.1 New Territories East Development Office of Civil Engineering and Development Department, Hong Kong Special Administrative Region Government.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 2 - May 2012

1.5 Location and Scale of Project

1.5.1 The location of the Study Area for EIA, the upper quarry site, is shown on Drawing no. TKZ0743.

1.5.2 Study Area for EIA covers the proposed development site which is located on the southwestern slopes of the Tai Sheung Tok Hill at the far north-eastern edge of East Kowloon, and is close to the major population centres of Kwun Tong, Lam Tin and Sau Mau Ping. It includes the existing Anderson Road Quarry which covers an area of about 86 hectares, out of which a platform of about 40 hectares would be formed under the current Quarry Rehabilitation Contract managed by CEDD.

1.6 Number and Types of Designated Project to be Covered by the Project Profile

1.6.1 The Project includes an engineering feasibility study and the preliminary design of the development proposal within Study Area for EIA (the development platform of area about 40 hectares). The Project consists of the following Designated Project under Environmental Impact Assessment Ordinance (EIAO) that requiring an EIA report:

(i) Item 1 of Schedule 3 of the Environmental Impact Assessment Ordinance (EIAO), i.e. “Engineering feasibility study of urban development projects with a study area covering more than 20 hectares or involving a total population of more than 100,000”.

1.6.2 The Project also includes the feasibility study on the proposed road improvement works (locations subject to the final recommendations of the Planning Study). Upon confirmation of the feasible scheme of these proposed works and if any of them falls within item(s) of Schedule 2 of the EIAO, another study will be conducted for the EIA of these proposed works.

1.6.3 Rock cavern developments are proposed within the development site and their proposed use and location will be subject to the final recommendations of the Planning Study. The EIA for cavern developments will be dealt with separately when the respective details are available.

1.7 Name and Telephone Number of Contact Person

1.7.1 All enquiries regarding the project can be addressed to:

Mr WONG Wai Man (Chief Engineer/New Territories East 1) New Territories East Development Office, CEDD Suite 1213, Chinachem Golden Plaza 77 Mody Road Tsimshatsui Kowloon Tel. No.: 2301 1384 Fax No.: 2721 8630

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 3 - May 2012

2. OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME

2.1 Project Planning and Implementation

2.1.1 The Project Proponent will engage consultants to ascertain the feasibility of implementing the recommended development proposal at the upper quarry site and the associated road improvement works recommended under the Planning Study.

2.1.2 Specialist Environmental Consultants will be employed for undertaking the EIA study according to the Study Brief to be issued by the Director of Environmental Protection and to respond on behalf of the Project Proponent on issues related to the EIA.

2.2 Project Timetable

2.2.1 The Study including the EIA study is anticipated to commence in late 2012 for completion within a study period of approximately 16 months. Implementation programme with appropriate phasing including the design finalization, commencement of construction, commissioning and operation as well as contract packaging for implementation of the recommended development proposal will be formulated under the Study.

2.3 Interaction with Other Projects

2.3.1 The project may have interaction with the other projects including, but not limited to the Development at Anderson Road (DAR).

3. POSSIBLE IMPACT ON THE ENVIRONMENT

3.1 Air Quality

Construction Impacts

3.1.1 Construction works include site formation, the infrastructure provision and any other infrastructure activities. The major temporary air pollution will be dust generated as a result of these construction works and vehicle movement on unpaved haul roads. Due to the extent of the proposed development, extensive site formation works and subsequent construction works may have the potential to pose adverse air quality impacts on the nearby air sensitive receivers.

Operational Impacts

3.1.2 The major permanent sources of air pollutants are the vehicular emissions from traffic on local roads. Odour from the refuse collection points is another potential source of air pollution.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 4 - May 2012

3.2 Noise

Construction Impacts

3.2.1 The noise generated from construction activities, piling works, construction plant, traffic along site access roads, and related powered mechanical equipment have the potential to pose adverse noise impacts to the surrounding sensitive receivers.

Operational Impacts

3.2.2 The future noise environment will be affected by road traffic and fixed noise sources at the proposed development such as ventilation shafts, pump houses, electricity sub-stations, markets, bus termini, open car/lorry parks, refuse handling areas, etc.

3.3 Water Quality

Construction Impacts

3.3.1 Potential water quality impact during construction phase will be arisen from the surface runoff, the sewage from construction workforce (including toilets, kitchens), and the accidental spillage of chemicals.

Operational Impacts

3.3.2 Potential water quality impact during operational phase will be due to the sewage generated from residential, commercial and institutions buildings in the development site. Under the Planning Study conducted by PlanD, the consultants had compared the estimated sewage flow of the proposed development with the capacity of the sewerage system in the East Kowloon stated in the Final Report of the “Review of Central and East Kowloon Sewerage Master Plans” and concluded that it generally have sufficient capacity. .

3.4 Solid Waste

Construction Phase

3.4.1 Solid wastes will mainly be generated from a wide range of construction activities such as site formation, construction of roads and drains, and construction of the proposed development and infrastructure. The wastes arising from construction will largely consist of construction and demolition materials and waste, chemical waste, and general refuse. The quantities of wastes to be generated during construction of the proposed development will largely depend on the programmes of various works packages and also require off-site disposal.

Operational Phase

3.4.2 The operation of the proposed developments and associated infrastructure will generate a significant amount of municipal solid waste. The storage and handling of this waste will have the potential to cause adverse environment impact.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 5 - May 2012

3.5 Landfill Gas

3.5.1 There are five landfill sites in the vicinity of Study Area for EIA and none of their consultation zones fall within Study Area for EIA. Therefore, no qualitative assessment of landfill gas hazard will be necessary.

3.6 Ecology

3.6.1 Study Area for EIA, the development site, is recently operated as a quarry and it is highly disturbed and absent of flora of conservation interest. There should have no direct or indirect loss of habitats within Study Area for EIA due to the proposed development.

3.6.2 Study Area for EIA is bounded by housing estates and construction site at its southwest and Tai Sheung Tok Hill at its northeast. Within the 500 m ecology impact assessment area from Study Area for EIA, natural vegetation, mature woodland and stream at Tseng Lan Shue, which is at the north and northeast back side hill slopes of Tai Sheung Tok Hill, were identified. As the highest 20% of the Tai Sheung Tok Hill ridgeline will be designated as “building free zone” for protecting the ridgeline, such “building free zone” will also serve as an ecological barrier to the ecosystem at the back side hill slope of Tai Sheung Tok Hill. The ecological impacts are considered insignificant.

3.6.3 The potential terrestrial ecological impacts arising from the proposed development will be associated with :-

Construction Phase

(a) Disturbance to wildlife and vegetation, such as air pollution, water pollution, noise and glare;

(b) Increased sediment load;

(c) Toxic pollutants from construction operations; and

(d) Soil compaction.

Operational Phase

(a) Ecological barrier; and

(b) Disturbance to wildlife and vegetation, such as air pollution, water pollution, noise and glare.

3.7 Cultural Heritage

3.7.1 There is no declared monument or graded historical building in Study Area for EIA. The nearest two identified historical buildings namely Li Ancestral Hall (Grade 3) and Chu Ancestral Hall (No Grade), both in Ma Yau Tong, are rather distant from

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 6 - May 2012

the proposed work site. No adverse cultural heritage impact is therefore anticipated during construction and operation of the Project.

3.8 Land Contamination

3.8.1 While there are no extensive areas of contaminated land such as landfills, chemical stores etc. in Study Area for EIA, there is potential for the presence of residues from vehicle repairing workshops and underground fuel tanks to create an adverse impact that will need to be cleaned up during the site formation phase.

3.8.2 The contaminated land impacts are likely to be related to the following: health risks to site workers; disposal of contaminated soils, where encountered; and potential health risks to future users of the areas. The land contamination issue and its impact within Study Area for EIA will be identified and assessed.

3.9 Landscape and Visual

3.9.1 The expected sources of landscape and visual impacts arising from the development of Study Area for EIA are as follows:-

Construction Phase

(a) Visual appearance of any temporary use prior to the residential development;

(b) Construction activities on the existing available land; and

(c) Obstruction of or intrusion into views by the residential development.

Operational Phase

(a) Visual intrusion and obstruction created by the development; and

(b) Visual quality of the new development.

4. MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT

4.1 Air Quality

4.1.1 Study Area for EIA is located on the south-western slopes of the Tai Sheung Tok Hill at the far north-eastern edge of urban East Kowloon, and lies close to the major population centres of Kwun Tong, Lam Tin Sau Mau Ping and the proposed DAR. The average elevation of the platform of the upper quarry site is about 200 mPD.

4.1.2 The industrial areas in Kwun Tong and Kowloon Bay are about 1500m from Study Area for EIA. Chimney impacts from these industrial areas are considered insignificant.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 7 - May 2012

4.1.3 Air pollutants from vehicular emission from existing road network around Study Area for EIA, such as New Clear Water Bay Road, Anderson Road, Sau Mau Ping Road, Shun On Road, Lee On Road, Po Lam Road etc. may have the potential to post air quality impacts on the future development of upper quarry site have to be assessed and addressed.

4.1.4 The representative future and existing Air Sensitive Receivers (ASRs) in the vicinity of Study Area for EIA are summarised in Table 4.1 under paragraph 4.3.3 below.

4.2 Noise

4.2.1 The existing noise in the vicinity of the Study Area for EIA is dominated by the traffic noise from the surrounding road networks including New Clear Water Bay Road, Anderson Road, Sau Mau Ping Road, Shun On Road, Lee On Road, Po Lam Road, Tseung Kwan O Road, etc.

4.2.2 Representative Noise Sensitive Receivers (NSRs) are selected to represent both existing and future land uses affected by the implementation of the proposed development. The existing NSRs are the same as the corresponding ASRs, as indicated in Table 4.1 under paragraph 4.3.3 below.

4.3 Water Quality

4.3.1 The Study Area for EIA is located at the north of the DAR. Surface runoff within Study Area for EIA is collected within the basins formed on the lower platforms of the existing quarry and will be discharged to the stormwater drainage system currently constructed under the DAR.

4.3.2 The representative future and existing Environmental Sensitive Receivers in the vicinity of Study Area for EIA are summarized in Table 4.1 below.

Table 4.1 Representative Environmental Sensitive Receiver in the Vicinity of Study Area for EIA.

Description Nature of

Sensitive Receiver* Type of

Sensitive Receiver

Planned Public Housing at DAR R, GIC ASR, NSR, WSR

Shun Lung House and Community Centre, Shun Chi Court

R, GIC ASR, NSR

Lee Foo House and Lee Hung House, Shun Lei Estate

R ASR, NSR

On Chung House and On Yat House, Shun On Estate

R ASR, NSR

Tine Wan House, Shun Tin Estate R ASR, NSR

Ningpo No. 2 College E ASR, NSR

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Civil Engineering and Development Department - 8 - May 2012

Sau Ming School E ASR, NSR

Sau Nga House, Sau Mau Ping Estate R ASR, NSR

Sau Mau Ping Shopping Centre OU ASR, NSR

Sau Mau Ping Estate Ancillary Facilities Block

R ASR, NSR

Sau Mau Ping Catholic Primary School

E ASR, NSR

Tat Yi House, Po Tat Estate R ASR, NSR

Star Legend Terrace R ASR, NSR

Ma Yau Tong village house R ASR, NSR

Siu To Yuen Village house R ASR, NSR

Lun Wo Tsuen Village house R ASR, NSR

* R – residential; E – educational; GIC – government, institutional or community; OU – other specified uses.

4.4 Solid Waste

4.4.1 The existing solid waste arising from Study Area for EIA is minimal. It is anticipated that the major sources of solid waste from the future developments are domestic waste.

4.5 Ecology

4.5.1 Study Area for EIA covers the whole of the existing quarry site at the south-western side of Tai Sheung Tok Hill. Ecological resources are mainly at another side of the hill. Habitat loss within Study Area for EIA will be minimal.

4.6 Land Contamination

4.6.1 The existing environment of Study Area for EIA is mainly urban in character. The main expected contaminants may come from residues from the recent quarry operation in the upper quarry site.

4.6.2 The number of sensitive receivers likely to be impacted by the identified contamination concerns is expected to be limited to current land users and future site workers employed during the construction phase of the project.

4.6.3 Land-based excavation and grading works will be required for the proposed development in the area. These construction activities are cause for concern as they may interfere with potentially contaminated soil underlying, and hence creating the potential to impact sensitive receivers.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 9 - May 2012

4.7 Landscape and Visual

4.7.1 The composition of landscape elements within Study Area for EIA will be dominated by rehabilitation works of the Anderson Road Quarry and that of the existing and planned surrounding public housing estates. Site landscape and visual impacts are likely to result from the new developments and infrastructure subject to the land use of the proposed development.

4.7.2 Subject to the landscape and visual impact assessment, the following receiver group areas would be identified based on existing land use and topographical conditions:

(a) Surrounding public housing estates;

(b) Kwun Tong district, including Jordon Valley; and

(c) Northern shoreline of Hong Kong Island.

4.7.3 Visual sensitive receivers (VSRs) can be located within the above receiver group areas and they may be classified into residential buildings, non-residential buildings, and public in external areas including travellers on transport routes.

5. ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED

IN THE DESIGN AND ANY FURTHER ENVIRONMENTAL IMPLICATIONS

5.1 General

5.1.1 The EIA study will investigate those environmental impacts and propose the appropriate mitigation measures with the intention that all development proposals recommended by the project would be environmentally acceptable and cost effective. The residual impacts, if any, would be confined within the allowable limits. Environmental monitoring and auditing of potential impacts that may arise from implementation of the works proposed by the Project would be provided for the construction and operational phases. Subject to the findings of the EIA study, the following mitigation measures will be incorporated in the design and construction of the Project.

5.2 Air quality

Construction Phase

5.2.1 In order to prevent adverse impacts on air quality, the control measures stipulated in the Air Pollution Control (Construction Dust) Regulations should be implemented wherever applicable, to limit the dust emissions from the site. Mitigation measures, including but not limited to the following, will be put in place.

� Stockpiles of dusty material will not extend beyond site boundaries.

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Project Profile Development of Anderson Road Quarry

Civil Engineering and Development Department - 10 - May 2012

� In the process of material handling, any material which has the potential to create dust will be treated with water or sprayed with a wetting agent where practicable.

� Any vehicles with an open load compartment used for transferring dusty materials off-site will be properly fitted with side and tail boards and cover.

� Stockpiles of sand and aggregate will be enclosed on three sides and water sprays will be used to dampen stored materials and when receiving raw material.

� The site will be frequently cleaned and watered to minimise fugitive dust emissions.

� Motorised vehicles on the site will be restricted to a maximum speed of 15 km/hr and shall be confined to designated haul routes which will be paved or surfaced with hardcore.

Operational Phase

5.2.2 The proposed mitigation measures to improve the air quality within the Study Area for EIA are to be considered as follows :-

(a) Vehicle Emissions from Open Roads

� adequate buffer distance, tree planting and dense shrub plantation are recommended to separate the pedestrian and roads.

(b) Odour Impact from Refuse Collection Points (RCPs)

� proper waste management system would be adopted.

5.3 Noise

Construction Noise

5.3.1 In order to mitigate adverse noise impacts, the following general mitigation measures will be put in place.

� Quiet plant will be used to reduce noise generated.

� Movable and temporary barriers will be provided to screen NSRs from particular items of plant or noisy operations.

� Noise screening structures or purpose-built noise barriers will be provided along the site boundary to provide additional protection to NSRs nearby.

� Good site practices will be implemented as effective noise mitigation measures. These will include, but not limited to, locating noisy equipment and activities as far from NSRs as practical, scheduling noisy activities to minimise exposure of nearby NSRs to high levels of construction noise,

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Civil Engineering and Development Department - 11 - May 2012

proper maintenance of construction plant and devising methods of working to minimise noise impacts on the surrounding environment.

Operational Phase

5.3.2 For road traffic noise, noise mitigation designs such as environmentally friendly layout design and where necessary, noise barriers, should be incorporated in the layout plan of the proposed development. Environmentally friendly layout designs may include locating buildings to avoid exposure to traffic noise, using non-noise sensitive structures such as podium to shield traffic noise and adequate setback distance away from noisy roads.

5.3.3 For the potential impacts arising from other fixed noise sources including utilities services in the vicinity, the following mitigation measures and appropriate building design should be adopted.

� For the NSRs, proper arrangement of housing blocks and the use of special block design.

� For the noise sources, careful siting of noisy machinery within Study Area for EIA; by enclosing the noisy machinery within building structures; by use of acoustic louver, silencer for ventilating fan, acoustic door and absorptive wall lining; and any opening of the building to be located facing away from any NSRs.

5.4 Water Quality

Construction Phase

5.4.1 In order to prevent adverse impacts on water quality, the following general mitigation measures will be put in place.

� Good site practice in accordance with the ProPECC PN 1/94 “Construction Site Drainage” and “Recommended Pollution Control Clauses for Construction Contracts” issued by EPD, and procedures in the Environment, Transport and Works Bureau (ETWB) Technical Circular (Works) (TCW) No. 5/2005 “Protection of Natural Stream/Rivers from adverse impact arising from construction works”.

� Site run-off should be properly treated and collected to ensure the effluent comply with Water Pollution Control Ordinance. Temporary sand traps or other silt removal facilities should be provided to remove the oil, lubricants, grease, silt, grit and debris from the wastewater before discharging into the outlets.

� Silt removal facilities will be maintained regularly.

� Open stockpiles of materials on site will be avoided or where unavoidable covered with tarpaulin or similar fabric during rainstorms.

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Civil Engineering and Development Department - 12 - May 2012

� Silt curtains or sand bag barriers will be used to confine the disturbed area during sediment removal activities.

� Where possible, works entailing soil excavation will be minimised during the rainy season (April to September).

� To minimize the impacts of concrete washings, infiltration/sedimentation pits will be used to settle out the washings before treatment/re-use/discharge. If necessary, treatment units with pH adjustment will be adopted.

� Oil interceptors will be provided and properly maintained for collecting spillage or leakages from site workshops. The waste oil removed will be collected by licensed collectors.

� Mobile toilets or other appropriate means will be provided to store sewage before disposal through licensed collection agent or discharging to main sewerage system.

� For bore piling operations, the resulting suspension will be settled in sedimentation/infiltration pit until supernatant is clear and the bentonite solids will be disposed appropriately.

Operational Phase

5.4.2 The following general mitigation measures are to be considered:

� provision of sand/silt and oil/grease traps, porous pavements and detention ponds at suitable locations to prevent ingress of pollutants to the stormwater system, which would serve to reduce the loading from the storm drains to the Victoria Harbour;

� construction of drainage works to prevent increased risk of flooding;

� adopting proper sewerage system to collect sewage flows from the developments; and

� adoption of rainwater and grey water recycling as an alternative source of flushing water and landscape irrigation.

In view of the building construction of the proposed development being no earlier

than 2020 and the possible advancement in the technology of the rainwater

harvesting and grey water recycling systems, it is considered more appropriate to

propose such systems by individual developer to suit the design layout of the

individual development and to apply the respective environmental permit deemed

necessary under the EIAO process. In this regards, the study on the adoption of

rainwater harvesting and grey water recycling will not be included in the subject

EIA.

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Civil Engineering and Development Department - 13 - May 2012

5.5 Solid Waste

Construction Phase

5.5.1 Solid waste arising from construction will largely consist of spoil generated during earthworks, and general construction waste/surplus materials (such as C&D materials, chemical waste and general refuse).

5.5.2 As the development would require the import of fill material, the C&D materials will be stored separately and reused in the works.

5.5.3 The following measures will be implemented to reduce the quantities of C&D materials for disposal off site:

� All C&D materials will be sorted and re-used wherever possible;

� Waste haulier should obtain the necessary registration and licences under the Waste Disposal Ordinance and the Waste Disposal (Chemical Waste) (General) Regulation from the Environmental Protection Department;

� Nomination of an approved person to be responsible for good site practice, arrangements for collection and effective disposal to an appropriate facility, of all waste generated at the site;

� Separation of chemical wastes for special handling and appropriate treatment at a licensed facility;

� A recording system for the amount of wastes generated, recycled and disposed of (including the disposal sites);

� In order to monitor the disposal of C&D materials and solid wastes at public fill reception facilities and landfills, and control fly-tipping, a trip-ticket system shall be implemented by the Contractor, in accordance with the contract and the requirements of DEVB TC(W) No. 6/2010 “Trip Ticket System for Disposal of Construction & Demolition Materials”.

� A Waste Management Plan (WMP) shall be prepared and this WMP shall be submitted to the Engineer for approval. The WMP will be in accordance with ETWB TC(W) No. 19/2005 "Environmental Management on Construction Sites".

� Segregation and storage of different types of waste in different containers, skips or stockpiles to enhance reuse of recycling of materials and their proper disposal.

� Any unused chemicals or those with remaining functional capacity shall be recycled;

� Use of reusable non-timber formwork to reduce the amount of C&D materials; and

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� Proper storage and site practices to minimize the potential for damage or contamination of construction materials.

Operational Phase

5.5.4 The following mitigation measures are to be considered:

� The refuse collection points (RCP) should be enclosed to minimize noise, odour and visual nuisance, and it should be fitted with a deodourizing unit and ventilation system to remove odour. Each RCP should be fitted with a water point and high pressure hose for cleansing operations, with connection to the foul sewerage system.

� Domestic waste recycling should be encouraged, with provision of collection bins at appropriate locations in all housing estates and promotion campaigns for waste paper recovery, plastic bag collection and ‘sort and recovery’ of waste materials.

5.6 Ecology

5.6.1 The mitigation measures that are to be implemented to minimize the impacts on air quality, noise and water quality will also help to minimize any impacts on ecological resources.

5.6.2 As regards ecological impact, the best mitigation is avoidance and will be used wherever possible. For impact which is considered unavoidable, mitigation measures will be adopted to minimize such impact, e.g. translocation of important species, confining works in specific area/ season, etc. Compensation will be provided for the loss of important species or habitats, if any, on like-for-like basis whenever possible.

5.6.3 Any residential development proposal should be compatible with the surrounding land uses setting. Mitigation measures should also be devised in the operational phase when necessary.

5.7 Land Contamination

5.7.1 The following mitigation measures will be implemented during the construction phase to minimize any potential exposure to contaminated soils or groundwater:

� Site workers should wear gloves, masks and other protective clothing where exposure to vapour or contaminated soil may be encountered;

� Contaminated materials should be removed with bulk earth movers to prevent human contact;

� Adequate washing facilities should be provided and smoking/eating should be prohibited in the area;

� Contaminated soil which have been stockpiled or are being transported should be covered with tarpaulin;

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� Leakage of pollutants or leaching from excavated soil should be prevented by storing on an impermeable surface;

� Only licensed waste hauliers should be used to collect and transport any contaminated material to an appropriate disposal site and procedures should be developed to ensure that illegal disposal of wastes does not occur; and

� The necessary waste disposal permits should be obtained, as required, from the appropriate authorities, in accordance with the Waste Disposal Ordinance (Cap 354), Waste Disposal (Chemical Waste) (General) Regulation (Cap 354), as required.

5.7.2 Mitigation measures will also be determined with reference to EPD’s documents such as “The Guidance Notes for Contaminated Land Assessment Remediation (Aug 2007)”, “The Guidance Manual for Use of Risk-based Remediation Goals for Contaminated Land Management (Dec 2007)” and “Practice Guide for Investigation and Remediation of Contaminated Land (Aug 2011)”.

5.8 Landscape and Visual

Mitigation Measures to be Incorporated in the Design Layout of the Proposed Development

5.8.1 The following measures are to be considered during the design stage to minimize the landscape and visual impacts, including, but not limited to:

� controlling building height profiles and providing stepped building heights;

� preserving and establishing visual and open space links, including provision of view and breeze corridors; and

� adopting urban and landscape design principles.

Construction Phase

5.8.2 The following general mitigation measures will be implemented to alleviate the impacts for the construction phase, including, but not limited to:

� Erosion control measures should be implemented for protection of construction works and the landscape if heavy rains occur;

� Measures should be taken to store and use construction equipment and building materials where they are not visually intrusive, or easily washed away or where they produce less dust; and

� Damaged vegetation and trees, not earmarked for removal, should be rectified, repaired or replaced, using the same species, size and form, to the original condition as far as possible.

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� Minimization of light pollution techniques to be implemented. This includes having more lights with focused beams rather than energy wasting, floodlighting which might impact on the nighttime character of the area; and

� Haul roads should be rehabilitated at the earliest opportunity to be compatible with their existing surrounding landscape or planned surrounding landscape.

Operational Phase

5.8.3 The following general mitigation measures are to be considered for the operational phase, including, but not limited to:

� Proper arrangement of building blocks and provision of appropriate building height profiles;

� provision of visual and open space links and view corridors and breezeways;

� provision of urban design measures as identified in the design stage;

� Tree transplanting and compensatory planting will mitigate the impact on the existing tree/woodland;

� Roadside planting is proposed alongside all roads within the development. It will enhance local identity, if theme planting is used, and reduce visual impact through screening;

� Amenity strips will be provided to local roads, wherever practicable, to mitigate their visual appearance;

� Road structures, such as pedestrian bridges, will be designed to improve the visual appearance of the road corridor; and

� Landscape treatment will be provided to open drainage channels, refuse collection points, where practicable, to enhance their visual appearance.

6. USE OF PREVIOUSLY APPROVED EIA REPORTS

3.1 No previous approved EIA report exists for the proposed project. However, reference may be made to the following previously approved EIA report of the project that is adjacent to the Study Area for EIA :

Application No. Title

EIA-005/1998 Planning and Engineering Feasibility Study for Development at Anderson Road

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