Air Quality Measures

New Distributor Roads Serving the Planned KTD

AEIAR-130/2009 S3.2

AEIAR 130/2009 EM&A Manual S2.2

8 times daily watering of the work site with active dust emitting activities.

Contractor

All relevant worksites

Implemented

Decommissioning of the Radar Station of the former Kai Tak Airport

AEIAR-130/2009 S5.2.19

AEIAR 130/2009 EM&A Manual S4.2.4

The excavation area should be limited to as small in size as possible and backfilled with clean and/or treated soil shortly after excavation work.

 The exposed excavated area should be covered by the tarpaulin during night time.

 The top layer soils should be sprayed with fine misting of water immediately before the excavation.

Contractor

All relevant worksites

Not Applicable

Trunk Road T2

AEIAR-174/2013 S4.9.2.1

AEIAR-174/2013 EM&A Manual S2.3.1.1

Watering of the construction areas 12 times per day to reduce dust emissions by 91.7%, with reference to the “Control of Open Fugitive Dust Sources” (USEPA AP-42). The amount of water to be applied would be 0.91L/m2 for the respective watering frequency.

Contractor

All relevant worksites

 Implemented

Dust enclosures with watering would be provided along the loading ramps and conveyor belts for unloading the C&D materials to the barge for dust suppression.

Contractor

All relevant worksites

Not Applicable

8 km per hour is the recommended limit of the speed for vehicles on unpaved site roads.

Contractor

All relevant worksites

Implemented

Good Site Practices

AEIAR-130/2009 S3.2, S5.2.19, AEIAR-174/2013 S4.9.2.2

AEIAR 130/2009 EM&A Manual S2.2, S4.2, AEIAR-174/2013 EM&A Manual S2.3.1.2

Stockpiling site(s) should be lined with impermeable sheeting and bunded. Stockpiles should be fully covered by impermeable sheeting to reduce dust emission.

Contractor

All relevant worksites

Partially Implemented

Use of regular watering to reduce dust emissions from exposed site surfaces and unpaved roads, particularly during dry weather. Use of frequent watering for particularly dusty construction areas and areas close to ASRs.

Contractor

All relevant worksites

Implemented

Misting for the dusty material should be carried out before being loaded into the vehicle. Any vehicle with an open load carrying area should have properly fitted side and tail boards.

Contractor

All relevant worksites

Implemented

Material having the potential to create dust should not be loaded from a level higher than the side and tail boards and should be dampened and covered by a clean tarpaulin.

Contractor

All relevant worksites

Implemented

Tarpaulin covering of all dusty vehicle loads transported to, from and between site locations; The tarpaulin should be properly secured and should extent at least 300 mm over the edges of the sides and tailboards. The material should also be dampened if necessary before transportation.

Contractor

All relevant worksites

Partially Implemented

The vehicles should be restricted to maximum speed of 10 km per hour. Confined haulage and delivery vehicle to designated roadways insider the site. Onsite unpaved roads should be compacted and kept free of lose materials.

Contractor

All relevant worksites

Implemented

Vehicle washing facilities should be provided at every vehicle exit point. Every vehicle should be washed to remove any dusty materials from its body and wheels before leaving the construction sites.

The area where vehicle washing takes place and the section of the road between the washing facilities and the exit point should be paved with concrete, bituminous materials or hardcores.

Contractor

All relevant worksites

Implemented

Every main haul road should be scaled with concrete and kept clear of dusty materials or sprayed with water so as to maintain the entire road surface wet.

Contractor

All relevant worksites

Implemented

Every stock of more than 20 bags of cement or dry pulverised fuel ash (PFA) should be covered entirely by impervious sheeting or placed in an area sheltered on the top and the 3 sides.

Contractor

All relevant worksites

Implemented

Cement or dry PFA delivered in bulk should be stored in a closed silo fitted with an audible high level alarm which is interlocked with the material filling line and no overfilling is allowed.

Contractor

All relevant worksites

Implemented

Loading, unloading, transfer, handling or storage of bulk cement or dry PFA should be carried out in a totally enclosed system or facility, and any vent or exhaust should be fitted with an effective fabric filter or equivalent air pollution control system.

Contractor

All relevant worksites

Implemented

Side enclosure and covering of any aggregate or dusty material storage piles to reduce emissions. Where this is not practicable owing to frequent usage, watering shall be applied to aggregate fines.

Contractor

All relevant worksites

Implemented

Open stockpiles shall be avoided or covered. Prevent placing dusty material storage piles near ASRs.

Contractor

All relevant worksites

Implemented

Routing of vehicles and position of construction plant should be at the maximum possible distance from ASRs.

Contractor

All relevant worksites

Implemented

Dark smoke

Dark smoke emission shall be control in accordance with the Air Pollution Control (Smoke) Regulation and ETWB TCW 19/2005.

Contractor

All relevant worksites

Implemented

Plant and equipment should be well maintained to prevent dark smoke emission.

Contractor

All relevant worksites

Implemented

Noise Measures

Trunk Road T2

AEIAR-174/2013 S5.9.2.1

AEIAR-174/2013 EM&A Manual S3.4.1.1

The use of quieter plant, including Quality Powered Mechanical Equipment (QPME) is specified for the list of equipment:
• Concrete lorry mixer
• Dump Truck, 5.5 tonne < gross vehicle weight <= 38 tonne
• Generator, Super Silenced, 70 dB(A) at 7m
• Poker, vibratory, Hand-held (electric)
• Water Pump, Submersible (Electric)
• Mobile Crane - KOBELCO CKS900
• Excavator, wheeled/tracked - HYUNDAI R80CR-9

Contractor

All relevant worksites

Implemented

Use of temporary or fixed noise barriers with a surface density of at least 10kg/m² to screen noise from movable and stationary plant.

Contractor

All relevant worksites

Implemented

Use of enclosures with covers at top and three sides and a surface density of at least 10kg/m² to screen noise from generally static noisy plant such as air compressors.

Contractor

All relevant worksites

Implemented

Use of acoustic fabric for the silent piling system, drill rigs, rock drills etc.

Contractor

All relevant worksites

Implemented

Good Site Practices

AEIAR-130/2009 S3.3, S5.3.10, AEIAR-174/2013 S5.9.2.1

AEIAR 130/2009 EM&A Manual S2.3, S4.3.2, AEIAR-174/2013 EM&A Manual  S3.4.1.1

Only well-maintained plant should be operated on-site and plant shall be serviced regularly during the construction/ decommissioning program.

Contractor

All relevant worksites

Implemented

Silencers or mufflers on construction equipment should be utilized and shall be properly maintained during the construction/ decommissioning program.

Contractor

All relevant worksites

Implemented

Mobile plant, if any, should be sited as far away from NSRs as possible.

Contractor

All relevant worksites

Implemented

Machines and plant (such as trucks) that may be in intermittent use shall be shut down between works periods or should be throttled down to a minimum.

Contractor

All relevant worksites

Implemented

Plant known to emit noise strongly in one direction shall, wherever possible, be orientated so that the noise is directed away from the nearby NSRs.

Contractor

All relevant worksites

Implemented

Material stockpiles and other structures should be effectively utilized, wherever practicable, in screening noise from on-site construction/ decommissioning activities.

Contractor

All relevant worksites

Implemented

Use of site hoarding as a noise barrier to screen noise at low level NSRs.

Contractor

All relevant worksites

Implemented

For the use of hand held percussive breakers (with mass of above 10kg) and portable air compressors (supply air at 500 kPa or above), the noise level of such PME shall comply with a stringent noise emission standard and a noise emission label shall be obtained from the DEP before use at any time in construction site.

Contractor

All relevant worksites

Implemented

Quiet powered mechanical equipment (PME) shall be used for the construction of the Project.

Contractor

All relevant worksites

Implemented

Full enclosures shall be used to screen noise from relatively static PMEs (including air compressor, bar bender, concrete pump, generator and water pump) from sensitive receiver(s).

Contractor

All relevant worksites

Implemented

Movable cantilevered noise barriers shall be used to screen noise from mobile PMEs (including asphalt paver, breaker, excavator and hand-held breaker) from sensitive receiver(s). These movable cantilevered noise barriers shall be located close to the mobile PMEs and shall be moved/adjusted iteratively in step with each movement of the corresponding mobile PMEs in order to maximize their noise reduction effects.

Contractor

All relevant worksites

Implemented

Only approved or exempted Non-road Mobile Machineries (NRMMs) including regulated machines and non-road vechicles with proper labels are allowed to be used in specified activities on-site.

Contractor

All relevant worksites

Implemented

Water Quality Measures

Trunk Road T2

Accidental Spillage

AEIAR-174/2013 S6.4.8.5

AEIAR-174/2013 EM&A Manual S4.2.1.1

All bentonite slurry should be stored in a container that resistant to corrosion, maintained in good conditions and securely closed; The container should be labelled in English and Chinese and note that the container is for storage of bentonite slurry only.

Contractor

All relevant worksites

Implemented

The storage container should be placed on an area of impermeable flooring and bunded with capacity to accommodate 110% of the volume of the container size or 20% by volume stored in the area and enclosed with at least 3 sides.

Contractor

All relevant worksites

Implemented

The storage container should be sufficiently covered to prevent rainfall entering the container or bunded area (water collected within the bund must be tested and disposed of as chemical waste, if necessary). An emergency clean up kit shall be readily available where bentonite fluid will be stored or used.

Contractor

All relevant worksites

Implemented

The handling and disposal of bentonite slurries should be undertaken in accordance within ProPECC PN 1/94. Surplus bentonite slurries used in construction works shall be reconditioned and reused wherever practicable. Residual bentonite slurry shall be disposed of from the site as soon as possible as stipulated in Clause 8.56 of the General Specification for Civil Engineering Works. The Contractor should explore alternative disposal outlets for the residual bentonite slurry (dewatered bentonite slurry to be disposed to a public filling area and liquid bentonite slurry, if mixed with inert fill material, to be disposed to a public filling area) and disposal at landfill should be the last resort.

Contractor

All relevant worksites

Implemented

AEIAR-174/2013 S6.4.8.8

AEIAR-174/2013 EM&A Manual S4.2.1.1

In order to protect against impacts to the surrounding marine waters of the KTTS and Victoria Harbour in the event of an accidental spillage of fuel or oil, the Contractor will be required to prepare a spill response plan to the satisfaction of AFCD, EPD, FSD, Police, TD and WSD to define procedures for the control, containment and clean-up of any spillage that could occur on the construction site.

Contractor

All relevant worksites

Implemented

Dredging, Reclamation and Filling

No dredging, reclamation or filling in the marine environment shall be carried out.

Contractor

All relevant worksites

Implemented

Decommissioning of the Radar Station of the former Kai Tak Airport

Building Demolition

AEIAR-130/2009 S5.4

AEIAR 130/2009 EM&A Manual S4.4

The site practices outlined in ProPECC PN 1/94 “Construction Site Drainage” should be followed as far as practicable in order to minimise surface runoff and the chance of erosion.

Contractor

All relevant worksites

Not Applicable

There is a need to apply to EPD for a discharge licence under the WPCO for discharging effluent from the construction site. The discharge quality is required to meet the requirements specified in the discharge licence. All the runoff, wastewater or extracted groundwater generated from the works areas should be treated so that it satisfies all the standards listed in the TM-DSS. It is anticipated that the wastewater generated from the works areas would be of small quantity. Monitoring of the treated effluent quality from the works areas should be carried out in accordance with the WPCO license which is under the ambit of regional office (RO) of EPD.

Contractor

All relevant worksites

Not Applicable

General Construction Works

Construction Runoff

AEIAR-130/2009 S3.4, S5.4/ AEIAR-174/2013 S6.4.8.1

AEIAR 130/2009 EM&A Manual  S2.4, S4.4/ AEIAR-174/2013 EM&A Manual S4.2.1.1

Exposed soil areas should be minimised to reduce the potential for increased siltation, contamination of runoff, and erosion. Construction runoff related impacts associated with the above ground construction activities can be readily controlled through the use of appropriate mitigation measures which include the use of sediment traps and adequate maintenance of drainage systems to prevent flooding and overflow.

Contractor

All relevant worksites

Partially Implemented

Construction site should be provided with adequately designed perimeter channel and pre-treatment facilities and proper maintenance. The boundaries of critical areas of earthworks should be marked and surrounded by dykes or embankments for flood protection. Temporary ditches should be provided to facilitate runoff discharge into the appropriate watercourses, via a silt retention pond. Permanent drainage channels should incorporate sediment basins or traps and baffles to enhance deposition rates. The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94.

Contractor

All relevant worksites

Implemented

Ideally, construction works should be programmed to minimise surface excavation works during the rainy season (April to September). All exposed earth areas should be completed as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks where practicable. If excavation of soil cannot be avoided during the rainy season, or at any time of year when rainstorms are likely, exposed slope surfaces should be covered by tarpaulin or other means.

Contractor

All relevant worksites

Implemented

Sediment tanks of sufficient capacity, constructed from pre-formed individual cells of approximately 6 to 8 m3 capacity, are recommended as a general mitigation measure which can be used for settling surface runoff prior to disposal. The system capacity is flexible and able to handle multiple inputs from a variety of sources and particularly suited to applications where the influent is pumped.

Contractor

All relevant worksites

Implemented

Open stockpiles of construction materials (for examples, aggregates, sand and fill material) of more than 50 m³ should be covered with tarpaulin or similar fabric during rainstorms. Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system.

Contractor

All relevant worksites

Implemented

Manholes (including newly constructed ones) should always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system and storm runoff being directed into foul sewers.

Contractor

All relevant worksites

Implemented

Precautions to be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecast, and actions to be taken during or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94. Particular attention should be paid to the control of silty surface runoff during storm events.

Contractor

All relevant worksites

Implemented

Oil interceptors should be provided in the drainage system and regularly cleaned to prevent the release of oils and grease into the storm water drainage system after accidental spillages. The interceptor should have a bypass to prevent flushing during periods of heavy rain.

Contractor

All relevant worksites

Implemented

An adequately designed and located wheel washing bay should be provided at every site exit, and wash-water should have sand and silt settled out and removed at least on a weekly basis to ensure the continued efficiency of the process. The section of access road leading to, and exiting from, the wheel-wash bay to the public road should be paved with sufficient backfall toward the wheel-wash bay to prevent vehicle tracking of soil and silty water to public roads and drains.

Contractor

All relevant worksites

Implemented

Drainage

It is recommended that on-site drainage system should be installed prior to the commencement of other construction activities. Sediment traps should be installed in order to minimise the sediment loading of the effluent prior to discharge into foul sewers. There should be no direct discharge of effluent from the site into the sea.

Contractor

All relevant worksites

Implemented

All temporary and permanent drainage pipes and culverts provided to facilitate runoff discharge should be adequately designed for the controlled release of storm flows. All sediment control measures should be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rain storms. The temporarily diverted drainage should be reinstated to its original condition when the construction work has finished or the temporary diversion is no longer required.

Contractor

All relevant worksites

Implemented

Stormwater Discharges

Minimum distances of 100 m should be maintained between the existing or planned stormwater discharges and the existing or planned seawater intakes.

Contractor

All relevant worksites

Implemented

Sewage Effluent

Construction work force sewage discharges on site are expected to be connected to the existing trunk sewer or sewage treatment facilities. The construction sewage may need to be handled by portable chemical toilets prior to the commission of the on-site sewer system. Appropriate numbers of portable toilets should be provided by a licensed contractor to serve the large number of construction workers over the construction site. The Contractor should also be responsible for waste disposal and maintenance practices.

Contractor

All relevant worksites

Implemented

Debris and Litter

In order to maintain water quality in acceptable conditions with regard to aesthetic quality, contractors should be required, under conditions of contract, to ensure that site management is optimised and that disposal of any solid materials, litter or wastes to marine waters does not occur. Debris and refuse generated on-site should be collected, handled and disposed of properly to avoid entering into the adjacent harbour waters. Stockpiles of cement and other construction materials should be kept covered when not being used.

Contractor

All relevant worksites

Implemented

Accidental Spillage

Oils and fuels should only be used and stored in designated areas which have pollution prevention facilities. To prevent spillage of fuels and solvents to the nearby harbour waters, all fuel tanks and storage areas should be provided with locks and be sited on sealed areas, within bunds of a capacity equal to 110% of the storage capacity of the largest tank, to prevent spilled fuel oils from reaching the coastal waters of the Victoria Harbour WCZ. The bund should be drained of rainwater after a rain event.

Contractor

All relevant worksites

Implemented

Waste Management Measures

Waste Management Plan

AEIAR-174/2013 S11.4.8.1

AEIAR-174/2013 EM&A Manual S9.2.1.2

Contractor should be requested to submit an outline Waste Management Plan (WMP) prior to the commencement of construction work, in accordance with the ETWB TC(W) No.19/2005 so as to provide an overall framework of waste management and reduction.

Contractor

All relevant worksites

Implemented

Good Site Practices

AEIAR-130/2009 S3.5, S5.5

AEIAR 130/2009 EM&A Manual S2.5, S4.5

Nomination of an approved person, such as a site manager, to be responsible for good site practices, arrangements for collection and effective disposal to an appropriate facility, of all wastes generated at the site.

Contractor

All relevant worksites

Implemented

Training of site personnel in proper waste management and chemical waste handling procedures.

Contractor

All relevant worksites

Implemented

Provision of sufficient waste disposal points and regular collection for disposal.

Contractor

All relevant worksites

Implemented

Appropriate measures to minimize windblown litter and dust during transportation of waste by either covering trucks or by transporting wastes in enclosed containers.

Contractor

All relevant worksites

Implemented

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

Contractor

All relevant worksites

Implemented

Waste Reduction Measures

Sort C&D waste from demolition of the remaining structures to recover recyclable portions such as metals.

Contractor

All relevant worksites

Implemented

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

Contractor

All relevant worksites

Implemented

Encourage collection of aluminum cans, PET bottles and paper by providing separate labelled bins to enable these wastes to be segregated from other general refuse generated by the work force.

Contractor

All relevant worksites

Implemented

Any unused chemicals or those with remaining functional capacity should be recycled.

Contractor

All relevant worksites

Implemented

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

Contractor

All relevant worksites

Implemented

Construction and Demolition Materials

Where it is unavoidable to have transient stockpiles of C&D material within the work site pending collection for disposal, the transient stockpiles shall be located away from waterfront or storm drains as far as possible.

Contractor

All relevant worksites

Implemented

Open stockpiles of construction materials or construction wastes on-site should be covered with tarpaulin or similar fabric.

Contractor

All relevant worksites

Implemented

Skip hoist for material transport should be totally enclosed by impervious sheeting.

Contractor

All relevant worksites

Implemented

Every vehicle should be washed to remove any dusty materials from its body and wheels before leaving a construction site.

Contractor

All relevant worksites

Implemented

The area where vehicle washing takes place and the section of the road between the washing facilities and the exit point should be paved with concrete, bituminous materials or hardcores.

Contractor

All relevant worksites

Implemented

The load of dusty materials carried by vehicle leaving a construction site should be covered entirely by clean impervious sheeting to ensure dust materials do not leak from the vehicle.

Contractor

All relevant worksites

Implemented

All dusty materials should be sprayed with water prior to any loading, unloading or transfer operation so as to maintain the dusty materials wet.

Contractor

All relevant worksites

Implemented

The height from which excavated materials are dropped should be controlled to a minimum practical height to limit fugitive dust generation from unloading.

Contractor

All relevant worksites

Implemented

When delivering inert C&D material to public fill reception facilities, the material should consist entirely of inert construction waste and of size less than 250mm or other sizes as agreed with the Secretary of the Public Fill Committee. In order to monitor the disposal of the surplus C&D material at the designed public fill reception facility and to control fly tipping, a trip-ticket system as stipulated in the ETWB TCW No. 31/2004 “Trip Ticket System for Disposal of Construction and Demolition Materials” should be included as one of the contractual requirements and implemented by an Environmental Team undertaking the Environmental Monitoring and Audit work. An Independent Environmental Checker should be responsible for auditing the results of the system.

Contractor

All relevant worksites

Implemented

Chemical Waste

After use, chemical wastes (for example, cleaning fluids, solvents, lubrication oil and fuel) should be handled according to the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes. Spent chemicals should be collected by a licensed collector for disposal at the CWTF or other licensed facility, in accordance with the Waste Disposal (Chemical Waste) (General) Regulation.

Contractor

All relevant worksites

Implemented

General Refuse

General refuse should be stored in enclosed bins or compaction units separate from C&D material. A licensed waste collector should be employed by the contractor to remove general refuse from the site, separately from C&D material. Effective collection and storage methods (including enclosed and covered area) of site wastes would be required to prevent waste materials from being blown around by wind, wastewater discharge by flushing or leaching into the marine environment, or creating odour nuisance or pest and vermin problem.

Contractor

All relevant worksites

Implemented

Land Contamination Measures

For any excavation works conducted at Radar Station

As the risk due to dermal contact with groundwater by site workers is uncertain, it is recommended that personnel protective equipment (PPE) be used by site workers as a mitigation measure.

Contractor

All relevant worksites

Not Applicable

Landscape and Visual Impact

New Distributor Roads Serving the Planned KTD

Construction Phase

All existing trees should be carefully protected during construction.

Contractor

All relevant worksites

Not Applicable

Trees unavoidably affected by the works should be transplanted where practical. Detailed transplanting proposal will be submitted to relevant government departments for approval in accordance with ETWBC 2/2004 and 3/2006. Final locations of transplanted trees should be agreed prior to commencement of the work.

Contractor

All relevant worksites

Not Applicable

Control of night-time lighting.

Contractor

All relevant worksites

Not Applicable

Erection of decorative screen hoarding.

Contractor

All relevant worksites

Implemented

Trunk Road T2

Construction Phase

AEIAR-174/2013
S9.9.1.1

AEIAR-174/2013 EM&A Manual S7.2.1.2

All works shall be carefully designed to minimize impacts on existing landscape resources and visually sensitive receivers. Existing trees within works area shall be retained and protected.

Contractor

All relevant worksites

Not Applicable

Existing trees of good quality and condition that are unavoidably affected by the works should be transplanted.

Contractor

All relevant worksites

Not Applicable

Large temporary stockpiles of excavated material shall be covered with unobtrusive
sheeting to prevent dust and dirt spreading to adjacent landscape areas and vegetation, and to create a neat and tidy visual appearance.

Contractor

All relevant worksites

Partially Implemented

Construction plant and building material shall be orderly and carefully stored in order to create a neat and tidy visual appearance.

Contractor

All relevant worksites

Implemented

Erection of decorative screen hoarding should be designed to be compatible with the existing urban context.

Contractor

All relevant worksites

Implemented

All lighting in construction site shall be carefully controlled to minimize light pollution and night-time glare to nearby residences and GIC user. The contractor shall consider other security measures, which shall minimize the visual impacts.

Contractor

All relevant worksites

Not Applicable

General Condition

The Permit Holder shall display conspicuously a copy of this Permit on the Project site(s) at all vehicular site entrances/exits or at a convenient location for public’s information at all times. The Permit Holder shall ensure that the most updated information about the Permit, including any amended Permit, is displayed at such locations.  If the Permit Holder surrenders a part or the whole of the Permit, the notice he sends to the Director shall also be displayed at the same locations as the original Permit.  The suspended, varied or cancelled Permit shall be removed from display at the Project site(s).

Contractor

All relevant worksites

Implemented