APPENDIX I

Implementation Schedule

 

 

Environmental Aspects

Mitigation Measures

Implementation agent

Location

Implementation Stage

EIA Report Reference

Construction Phase

Fugitive Dust Emission

General Site Management:

·        appropriate working methods should be devised and arranged;

·        ensure any installed air pollution control system and measures are operated and/or implemented in accordance with their design merits;

·        in the event of malfunctioning of any control system or equipment, the relevant dusty activities shall stop until the relevant control system or equipment are restored to proper functioning;

·        frequent mist spraying should be applied on dusty areas;

·        no free falling of construction debris shall be allowed at the site.

Contractor

All Construction work sites

All construction stages

Section 4.5

 

Vehicles and Site Haul Road:

·        areas within the site where there are regular vehicle movements should have an approved hard surface;

·        speed controls at an upper limit of 10 to 15 kph should be imposed and their movements should be confined to designed roadways within the site;

·        all dusty vehicle loads should have side and tail boards and should be covered by tarpaulin extending at least 300 mm over the edges of the side and tail boards;

·        wheel-wash troughs and hoses should be provided at exit points of the site.

 

 

 

 

 

Material Stockpiling and Handling:

·        the amount of stockpiling should be minimised;

·        the surface of the stockpile should be kept wet by spraying with water;

·        dust emission during loading of fill material to dump trucks should be mitigated by spraying to sufficiently damp the material prior to any loading or unloading operation;

·        dusty construction debris should be covered or stored inside enclosed areas where practicable to avoid dust generation;

·        other control measures such as enclosed or semi-enclosed windboard should be used, where applicable, to minimise dust emission.

 

 

 

 

 

 

 

Construction Noise

General:

·        use of quiet PME;

·        erect a temporary noise barrier at the western site boundary along Shing Tai Road. If required, additional movable noise barriers can be temporarily erected within the site in the proximity of noisy work areas,

·        phasing of construction activities to minimise concurrent operation of PME;

·        minimise number of PME working concurrently;

·        good site practice and noise management.

Contractor

All Construction work sites

All construction stages

Section 5.3

 

Other Specific Measures:

·        the Contractor shall comply with and observe the Noise Control Ordinance (NCO) and its current subsidiary regulations;

·        before the commencement of any work, the Contractor shall submit to the Engineer for approval the method of working, equipment and sound-reducing measures intended to be used at the site;

·        the Contractor shall devise and execute working methods that will minimise the noise impact on the surrounding environment;

·        provide experienced personnel with suitable training to ensure that these methods are implemented;

·        only well-maintained plants should be operated on-site;

·        plants should be serviced regularly during the construction programme;

·        machines that may be in intermittent use should be shut down or throttled down to a minimum between work periods;

·        silencer and mufflers on construction equipment should be utilised and should be properly maintained during the construction programme;

·        noisy activities can be scheduled to minimise exposure of nearby NSRs to high levels of construction noise.  For example, noisy activities can be scheduled for midday or at times coinciding with periods of high background noise (such as during peak traffic hours);

·        noisy equipment such as emergency generators shall always be sited as far away as possible from noise sensitive receivers;

·        mobile plants should be sited as far away from NSRs as possible;

·        material stockpiles and other structures should be effectively utilised as noise barrier, where practicable.

 

 

 

 

Traffic Noise

·        A 3m high vertical solid wall shall be erected near the northern, western and southern edge at roof level of the bus depot building.

 

Project Architect/ Contractor

Bus depot roof floor

Superstructure Construction

Section 5.4

Traffic Noise/ Hazard

·        The northern and southern sides of the bus depot building adjoining the Petrol/ LPG filling station and HK Post Supercentre shall be constructed as a blank façade without openings.

 

Project Architect/ Contractor

Bus depot building northern and southern facades

Superstructure Construction

Section 5.4, Section 8.3

Waste Management

Overall Waste Management:

·        establish a waste management plan for implementation;

·        storage areas for different waste types - different types of waste should be segregated and stored in different containers, skips or stockpiles to enhance reuse or recycling of materials and their proper disposal.  An on-site temporary storage area equipped with required control measures (e.g. dust) should be provided;

·        trip-ticket system - in order to monitor the disposal of inert C&DM at public filling facilities and the remaining C&D waste to landfills, and control fly-topping, a trip-ticket system should be included as a contractual requirements and audited by the Environmental Team;

·        records of wastes - a recording system for the amount of wastes generated, recycled and disposed (including the disposal sites) should be proposed;

·        training - training should be provided to workers in respect of site cleanliness and appropriate waste management procedure, including waste reduction, reuse and recycling, and avoid contamination of reusable C&DM.

Contractor

All Construction work sites

All construction stages

Section 6.3

 

Construction & Demolition Material

·        “selective demolition” approach recommended for avoiding mixing of reusable/ recyclable  material with waste requiring disposal;

·        generation of surplus construction material is recommended to be minimised by the contractor through careful design, planning, good site management, control of ordering procedures, segregation and reuse of material;

·        proper disposal of inert excavated material offsite to public filling areas.

 

 

 

 

 

Chemical Waste:

·        chemical waste materials have to be stored on-site with suitable containers so that leakage or spillage is prevented during the handling, storage, and subsequent transportation;

·        chemical waste requiring disposal shall be handled, collected and delivered by licensed collectors in accordance with the Waste Disposal (Chemical Waste) (General) Regulation.

 

 

 

 

 

General Refuse:

·        general refuse generated at the construction site shall be stored separated from construction and chemical wastes to avoid cross contamination;

·        Segregation of aluminum cans or other recyclable material for recycling shall be considered as far as practicable.

 

 

 

 

 

Wastewater

Wastewater

·        wastewater effluent generated from the construction works shall be managed in accordance with the requirements under ProPECC Note PN1/94;

·        No effluent discharge shall be made into the embayed water of the Cargo Handling Basin, or stormwater drains at road carriagways and other public areas.

 

 

Contractor

All Construction work sites

All construction stages

Section 10.2

Landscape

·        13 nos. of existing trees (identified in the tree survey report) should be transplanted to Chai Wan Park, Cape Collinson Chinese Permanent Cemetery, Yee Shing Lane Sitting Out Area or the proposed town park at Aldrich Bay;

 

Contractor

Construction Work Sites

Site Clearance

Section 9.2

 

·        Compensatory Planting should be carried out within Site Boundary;

 

Contractor

Ground Floor; 1st and 3rd floor of the proposed building

Construction Stage

Section 9.2

 

·        Street Tree Planting along Road 20/4 and Shing Tai Road outside the site boundary subject to approval by Highway’s Department.

 

Contractor

Road 20/4 & Shing Tai Road

Construction Stage

Section 9.2

Visual

·        Adopt appropriate design in terms of adopting appropriate colour scheme, building materials and façade treatment to ensure visual compatibility within its environmental content.  Recessed grove lines shall be introduced to divide the wall into panels as appropriate. Where appropriate, colours shall also be used to further break down the scale by means of spray-painting on plaster.  Metal cladding and tiling, etc. to be used for the main elevations facing Shing Tai Road and Road 20/4.

 

Project Architect/ Contractor

Northern and southern facades of the bus depot building

Construction Stage

Section 9.3

 

 

 

 

 

 

Environmental Monitoring and Audit

·        Carry out dust monitoring during the execution of construction works in accordance with the recommendation of the EMP.

 

Environmental Team

All Construction work sites

All construction stages

EMP Section 2.6

 

·        Carry out construction noise monitoring during the execution of construction works in accordance with the recommendation of the EMP.

 

Environmental Team

All Construction work sites

All construction stages

EMP Section 2.7

 

·        Carry out regular site inspections to audit proper air quality, construction noise and construction waste management

 

Environmental Team

All Construction work sites

All construction stages

EMP Section 2.11

 

·        Tree transplanting works shall be carried out strictly accordingly to the Transplanting Specification (Appendix D of Tree Survey Report) under the close monitoring of a qualified landscape architect or arboriculturist.

 

 

 

 

 

 

 

Qualified landscape architect/ arboriculturist

Construction site

During tree transplanting

Section 9.2

Operational Phase

 

 

 

 

Noise

·        Buses leaving or returning to the bus depot shall strictly follow the bus routing plan agreed with TD at all time periods except under emergency conditions.

Citybus

Road carriageways in the vicinity of the bus depot

Operational stage

Section 5.5

 

·        Buses from Siu Sai Wan approaching the depot as well as Siu Sai Wan bound buses shall route through the future Sheung On Street Extension and Road 20/4, instead of allowed to use Wing Tai Road and Shing Tai Road at all time periods except under emergency conditions.

 

Citybus

Road carriageways in the vicinity of the bus depot

Operational stage

Section 5.5

Land Contamination Prevention

Diesel Fuel Tanks and Associated Pipelines

·        the underground tanks to be installed shall be of a specified durability and placed within a concrete pit to avoid direct contact of the tank surface with soil.

·        the concrete pit shall be accessible to allow tank integrity test be carried out on an annual basis, or when deemed necessary by an independent qualified surveyor or structural engineer.  Any potential problems such as potential cracking shall be rectified as far as practicable;

·        Diesel fuel pipelines are preferably to be installed above ground.  If underground piping is unavoidable, concrete lined trenches should be constructed to contain the pipelines.  The distance between the diesel fuel refuelling bays and the underground tanks should be minimized as appropriate to avoid the need of long pipelines;

·        proper installation and use of meters (e.g. at the two ends of a filling line) in diesel fuel filling would allow unexpected pressure drop or difference and sign of leakage be detected from routine inspection or during diesel fuel refueling. Any identified leakage should be reported to the plant manager in-charge;

·        any spillage of fuel material should be removed immediately with portable pump when the quantity is large or absorbing materials when the quantity is low or with similar effective tools as appropriate.  Used absorbing material should be properly stored and disposed of as chemical waste;

 

Citybus

Near underground diesel fuel tanks and refueling areas

Operational stage

Section 7.4

 

·        the refuelling of buses shall be undertaken by well trained staff to avoid spillage of fuel. The underground tanks refuelling (from tank trucks) should only be undertaken by authorized staff of fuel company using the company’s standard procedures to avoid spillage of diesel fuel.

 

 

 

 

 

 

Use of Chemicals

·        chemicals used onsite should be properly stored in designated areas;

·        chemicals classified as dangerous goods under the “Dangerous Goods Ordinance” shall be segregated, stored and handling in compliance with the requirements under the Code of Practice on the Packaging, Labeling and Storage of Chemical Waste.

·        any spillage incidents should be reported to the plant manager in-charge.  Immediate action should be taken to confine the spillage and to clean up the spill;

·        if the spillage quantity is large, hand-operated pumps or other efficient measures should be used to clean up the spill effectively.  Used absorbing material for cleaning up of minor spillage should be properly handled, stored and disposed of as chemical waste;

·        the plant manager in-charge should keep a record on incidents of chemical spillage and the actions taken.

 

Citybus

All chemicals storage and usage areas

Operational stage

Section 7.4

Waste Management

·        chemical wastes generated during the operation phase of the bus depot shall be managed in accordance with the requirements under the Waste Disposal (Chemical Waste) (General) Regulation and Code of Practice on the Packaging, Labelling and Storage of Chemical Waste published by EPD.  Chemical waste to be disposed of shall be collected by licensed waste collectors for proper disposal.

·        Sludge generated from the water treatment system of the bus washing machines shall be regularly removed and transported away by licensed collectors for proper disposal.

·        Oily sludge accumulated inside oil/petrol interceptors in the bus washing areas and grease traps in the kitchen areas should also be regularly removed and transported away by licensed collectors for proper disposal.

 

Citybus

All chemicals storage and usage area

 

 

Bus washing areas and kitchen areas

Operational stage

Section 6.5

Wastewater and Disposal Facilities

Wastewater Treatment and Disposal

·        wastewater effluent generated from designated bus washing areas should be diverted to petrol interceptors before being discharged into government sewers;

·        sewage generated from kitchen area should be diverted to grease traps before disposal;

·        the design of the petrol interceptors and grease traps to be installed shall enable the treated effluent to meet the limits stipulated in the Technical Memorandum, “Standards for Effluents Discharged into Drainage and Sewerage Systems, Inland and Coastal Waters”;

·        all rainwater collected from the roof floor carparks shall be diverted to petrol/oil interceptor before discharge.  The design of the interceptors as part of the drainage system which should allow stormwater bypass during peak flow periods;

·        No effluent discharge shall be made into the embayed water of the Cargo Handling Basin, or stormwater drains at road carriagways and other public areas.

 

Citybus

Bus Depot Area

Operational stage

Section 10.2

EMS

·        Implemented the recommended “impact-mitigation oriented” Environmental Management System.

 

Citybus

Bus Depot

Operational stage

EMP Section 3.2