Annex I           Implementation Schedule of the Environmental Protection Measures

 

EIA Report Ref.

EM&A Ref.

Environmental Protection Measures

Location/Duration of Measures/Timing of Completion of Measures

Implementation Agent

Implementation Stage

Relevant Legislation & Guidelines

Des

C

O

Dec

AIR QUALITY

Ecological Reserve

 

 

No measures required.

 

 

 

 

 

 

 

Development Site

 

S4.6.2

 

S3.2

Dust control measures:

·     A vehicle washing facility should be provided at the main exit of the construction site and water recaptured or discharged offsite via sand traps to the drainage paths away from the SSSI.

 

Within the Development Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Excavated spoils should be covered or wetted especially during the dry season.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Exposed surfaces should be sprayed with water or covered entirely to avoid fugitive dust emissions.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2

S3.2

·     Area where dusty work takes place should be sprayed with water immediately prior to, during and immediately after dusty activities so as to maintain the entire surface wet.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2

S3.2

·     Temporary stockpiles of dusty materials, if any, should be covered entirely or sprayed with water.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     During transportation by truck, materials should not be loaded to a level higher than the side and tail boards, and should be dampened or covered before leaving the site.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Dusty load transported by the trucks should be covered entirely to avoid any spillage on to public roads.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     During air flushing for soil nail drilling, dust screen should provided at the three sides of the drilling machine and the soil nailing area to avoid fugitive dust emissions.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Diesel-powered equipment should be properly maintained to avoid black smoke emissions.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2

S3.3

·     In-house management measures such as signage to remind visitors on the prohibition of burning effigy should be provided. 

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Air Pollution Control (Construction Dust) Regulation

Sha Lo Tung Road Improvement

S4.6.2 & 4.6.3

S3.2

Dust control measures:

·     Excavated spoils should be covered or wetted especially during the dry season.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Exposed surface should be kept wet always or entirely covered to avoid fugitive dust emissions.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     During transportation by truck, materials should not be loaded to a level higher than the side and tail boards, and should be dampened or covered before leaving the site.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Dusty loads transported by the trucks should be covered entirely to avoid any spillage on to public roads.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     During air flushing for soil nail drilling, dust screen should provided at the three sides of the drilling machine and the soil nailing area to avoid fugitive dust emissions.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

S4.6.2 & 4.6.3

S3.2

·     Diesel-powered equipment should be properly maintained to avoid black smoke emissions.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Air Pollution Control (Construction Dust) Regulation

NOISE

Ecological Reserve

 

 

No measures required.

 

 

 

 

 

 

 

Development Site

S5.11.1

S4.2.1

·     Weekly noise monitoring should be undertaken at the representative NSRs (N1 and N5) to ensure compliance with the noise criterion at the NSRs 

NSRs N1 and N5/ Throughout the construction period

Environmental Team

 

ü

 

 

Noise Control Ordinance (NCO)

 

S5.8.1

 

S4.2.1

Good Site Practice

·     Only well-maintained plant should be operated on-site and plant should be serviced regularly

 

Within the Development Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

-

S5.8.1

S4.2.1

·     Silencers or mufflers on construction equipment should be utilized and should be properly maintained

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Material stockpiles and other structures should be effectively utilised, wherever practicable, in screening noise from on-site construction activities

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Liaise with the school regarding the examination periods.  Noisy construction activities, including piling, excavation and earth-breaking works, will be carried out outside the examination

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Use of Quiet PME having actual SWL lower than the value specified in the GW-TM 

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Technical Memorandum on Noise from Construction Work other than Percussive Piling

S5.8.2

S4.2.2

·     Choose quieter equipment

Within the Development Site / Operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S5.8.2

S4.2.2

·     Include noise levels specification when ordering new plant items

Within the Development Site / Operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S5.8.2

S4.2.2

·     Locate fixed plant items or noise emission points away from the NSRs as far as practicable

Within the Development Site / Operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S5.8.2

S4.2.2

·     Locate noisy machines in completely enclosed plant rooms or buildings with suitable and practicable noise remedies

Within the Development Site / Operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S5.8.2

S4.2.2

·     Develop and implement a regularly scheduled plant maintenance programme so that plant items are properly operated and serviced.  The programme should be implemented by properly trained personnel

Within the Development Site / Operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

Sha Lo Tung Road Improvement

S5.11.1

S4.2.1

·     Weekly noise monitoring should be undertaken at the representative NSRs (N1 and N5) to ensure compliance with the noise criterion at the NSRs 

NSRs N1 and N5/ Throughout the construction period

Environmental Team

 

ü

 

 

Noise Control Ordinance (NCO)

 

S5.8.1

 

S4.2.1

Good Site Practice

·     Only well-maintained plant should be operated on-site and plant should be serviced regularly

 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

-

S5.8.1

S4.2.1

·     Silencers or mufflers on construction equipment should be utilized and should be properly maintained

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

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

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Material stockpiles and other structures should be effectively utilised, wherever practicable, in screening noise from on-site construction activities

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Liaise with the school regarding the examination periods.  Noisy construction activities, including piling, excavation and earth-breaking works, will be carried out outside the examination

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S5.8.1

S4.2.1

·     Use of Quiet PME having actual SWL lower than the value specified in the GW-TM 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Technical Memorandum on Noise from Construction Work other than Percussive Piling

S5.8.1

S4.2.1

·     Adoption of movable noise barriers (3 m in height with skid footing).  They should be located within a few metres of stationary plant and mobile plant such that the line of sight to the NSR is blocked by the barriers.  The length of the barrier should be at least five times greater than its height. 

Sha Lo Tung Road Improvement Phase 1 Construction Area / Throughout the Phase 1 construction period of Sha Lo Tung Road Improvement

Construction Contractor

 

ü

 

 

-

WATER QUALITY

Ecological Reserve

 

S6.6.1

 

-

Good Construction Practice

·     Conduct all the works during dry season and using hand tools

·     Locate the footing of the temporary footbridge at bare land and avoid vegetated areas as much as practical

·     Avoid or minimize vegetation removal as much as possible

·     Restricting the number of workers within the Ecological Reserve

·     Regularly check the work site boundaries to ensure that they are not breached and that damage does not occur to surrounding habitats in particular the secondary woodland and Sha Lo Tung streams; and

·     No pesticide or herbicide be used for pest and weed control

 

Within the Ecological Reserve / Throughout the construction period

 

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

 

ü

 

ü

 

-

Development Site

S6.6.2

-

Prevention of Construction Runoff from Polluting the Nearby Watercourse and Ecological Sensitive Areas

·     Minimisation of the Development Footprint.  The preliminary Master Layout Plan minimised the development footprint within the Development Site (of approximately 1.625 ha and comprised only about 39.6% of the total site area) so as to reduce the extent of site formation and earth work activities, and the subsequent potential risk of construction runoff. 

 

 

Within the Development Site / Prior to the commencement of construction works

 

 

Design Team of Sha Lo Tung Development Co., Ltd

 

 

ü

 

 

ü

 

 

 

 

-

S6.6.2

-

 

 

·      Completion of Sha Lo Tung Road Improvement in advance.  Before any construction works are undertaken within the Development Site, the Sha Lo Tung Road should be improved with well designed drainage systems.  All of the surface run-off will be collected by the temporary drainage system with sufficient number of sandtraps (with sufficient capacity) and then discharged to the newly constructed stormwater drainage system along the improved Sha Lo Tung Road.

Within the Development Site / Prior to the commencement of construction works for the Development Site

Construction Contractor

 

ü

 

 

-

S6.6.2

-

·     Restrict Earthworks to the Dry Season.  Earthworks within the Development Site will only be undertaken during the dry season (November through March) in order to avoid the risk of construction runoff reaching ecological sensitive areas.  With the implementation of this measure, the risk from excessive construction runoff in the event of a heavy rainstorm can be reduced.  Major earthworks will be strictly prohibited during the wet season to minimise ecological risk to the Sha Lo Tung Valley. 

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2 & S6.6.3

-

·     Adoption of Construction Sequences.  Given that the Development Site is elongated in shape and hilly in nature, the construction sequence should be well managed in order to limit the volume of surface runoff and treated effluent generated on-site, in particular during the wet season (works other than earthworks).  In order to limit the size of exposed areas and volume of the surface runoff, the construction activities will be carried out sequentially (phase by phase and sub-area to sub-area) rather than in parallel (refer to Site Formation Construction Sequence as shown in Figure 3.13 in the EIA Report and Road Improvement Work Plan as shown in Figure 3.22 in the EIA Report).  The site formation works in the northern part of the Development Area will be carried out at a later phase in order to avoid early exposure of the soil and hence to prevent muddy water from spilling over into the Sha Lo Tung SSSI and Sha Lo Tung Stream as well as the wet abandoned agricultural land.  Such arrangement will assist in ensuring that construction runoff is not discharged into Sha Lo Tung Stream.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2 & 6.6.3

-

·     Provision of Temporary Drainage Channels.  Peripheral temporary drainage channels (special designed U-channel, like a “J” shape will be used) (see Figure 6.3) should be constructed along the lower side of all of the works areas within the Development Site prior to the commencement of the construction works.  All of the natural surface run-off will be collected by the temporary drainage system with a sufficient number of sandtraps and oil interceptors and then discharged to the newly constructed stormwater drainage system along Sha Lo Tung Road.  The drainage system capacity shall be designed for a 1:20 year storm event.  A sandtrap of large capacity is proposed to connect between the temporary drainage system within the Development Site and the newly constructed stormwater drains beneath Sha Lo Tung Road.  All surface runoff within the site will be continuously pumped to this sandtrap through a bendable water pipe (e.g. rubber pipe) before it is discharged from the site.  Due to the lower level at the surface water collection point within the Development Site, the surface water within the Site will be transferred to temporary storage tanks (after passing through sandtraps) in which a submersible pump will operate to continuously pump the surface runoff to the proposed sandtrap.  A spare submersible pump will be put in place in the storage tank for contingency purpose.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2

-

·     Provision of Silt Removal Facility.  Sandtraps will be provided on site for wastewater treatment before discharge.  The Contractor will ensure that the sandtraps will be large enough to handle the site runoff / discharges and will be properly maintained.  The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94.  The effectiveness of the sand trap will be checked and maintained regularly.  The sand traps should be cleaned out when the volume of settled sediments amounts to 10% of the total volume of the trap.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2

-

·     Separate Temporary Drainage System for Natural Runoff.  The temporary drainage system may not be able to handle high volume of natural surface runoff from the surrounding hills during heavy rainfalls.  The surface runoff from the Site will be separated from the natural hinterland surface runoff by deployment of two drainage systems.  To cater for the surface water running from the hinterland in particular at the southern end to the low profile of the Site, a separate temporary drainage system including catchpits and drainage pipes will be used to direct the natural surface runoff without any contamination due to site activities to north side of the site (Figure 6.3 in the EIA Report).

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2

-

·     Erection of Site Hoardings and Chain-link Fence with Seal.  Continuous site hoarding and chain-link fence will be erected along the temporary drainage system enclosing the entire Development Site (Figure 6.4 in the EIA Report).  The hoardings and chain-link fence should be firmly attached to the channel (any gaps are to be filled and cemented) in order to avoid any accidental spilling over the peripheral channel to the nearby streams.  All of the excessive runoff due to heavy rainfall or overflow of storage tanks/ sandtraps could be retained within the Site and avoid any accidental discharges into the Sha Lo Tung SSSI Stream as well as the wet abandoned agricultural land.  The erection of the hoardings and chain-link fence will avoid any additional impacts to the existing trees.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S6.6.2

-

·     Daily Inspection.  Green Power will provide a Conservation Specialist to stay on-site during the construction phase.  The Green Power representative will inspect the site daily to inspect of the sandtraps and channels and check the implementation and effectiveness of the runoff control measures.  The person will have the authority to stop the construction works should the implementation and effectiveness of the runoff control measures not be satisfactory.

Within the Development Site / Throughout the construction period

 Conservation Specialist

 

ü

 

 

-

S6.6.4

-

Good Site Practices

·     Discharges to the natural water courses shall only take place when the effluent complies with the requirements under the Water Pollution Control Ordinance.  Discharges in the water gathering ground should meet Group A standards for inland waters specified in the Technical Memorandum, Standards for Effluent Discharged into Drainage and Sewerage Systems, Inland and Coastal Waters.

·     All exposed earth areas will be paved or hydroseeded as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks, where practicable.  In the event of rain or at any time when rainstorms are likely to happen, exposed surfaces should be covered by tarpaulin or by other means.

·     All drainage facilities and erosion and sediment control structures will be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rainstorms.  Deposited silt and grit will be removed regularly and disposed of by spreading evenly over stable, vegetated areas.

·     Measures will be taken to reduce the ingress of site drainage into excavations.  If the excavation of trenches in wet periods is necessary, they will be dug and backfilled in short sections wherever practicable.  Water pumped out from trenches or foundation excavations will be discharged into storm drains via silt removal facilities.

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

·     The wheels of all vehicles leaving and entering the construction site shall be washed to minimise the carry over of mud onto Sha Lo Tung Road and into the water gathering grounds.  Wheel wash water shall be recycled and only discharged into the temporary drainage system.

·     Manholes (including newly constructed ones) will always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system.

·     Precautions to be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecasted, and actions to be taken during or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94.  Particular attention will be paid to the control of silty surface runoff during storm events, especially for areas located near steep slopes.

·     Oil interceptors will be provided in the drainage system and regularly emptied to prevent the release of oil and grease into the storm water drainage system after accidental spillages.  The oil interceptors should be cleaned when the volume of oil amounts to 30% of the total volume of the oil interceptor.  The interceptor will have a bypass to prevent flushing during periods of heavy rain.

·     The sandtraps should be cleaned out when the volume of settled sediments amounts to 10% of the total volume of the traps.

 

Within the Development Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.4

-

General Construction Activities

·     Debris and rubbish generated on-site will be collected, handled and disposed of properly to avoid entering the nearby stormwater drains and open drainage channels.  The refuse collection point will be properly constructed with covers and will be bunded and drained to the sewerage system.

·     Open storm water drains and culverts near the works area will be covered to block the entrance of large debris and refuse. 

·     Earthworks will be schedule in the dry season (November to March) only and construction sequenced accordingly.

 

Within the Development Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

 

S6.6.4

-

Storage and Handling of Oil, Other Petroleum Products and Chemicals

·     Waste streams classifiable as chemical wastes will be properly stored, collected and treated for compliance with Waste Disposal Ordinance or Disposal (Chemical Waste) (General) Regulation requirements.

·     All fuel tanks and chemical storage areas will be provided with locks and be sited on paved areas and at the south of the Development Site.

·     The storage areas will be surrounded by bunds with a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled oil, fuel and chemicals from reaching the receiving waters.

·     Oil leakage or spillage will be contained and cleaned up immediately.  Waste oil should be collected and stored for recycling or disposal, in accordance with the Waste Disposal Ordinance.  The Contractors will prepare guidelines and procedures for immediate clean-up actions following any spillages of oil, fuel or chemicals.

 

Within the Development Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

Waste Disposal Ordinance

Disposal (Chemical Waste) (General) Regulation

S6.6.4

-

Sewage Effluent

·     Appropriate sanitary facilities, such as portable chemical toilets, will be employed at the areas where the temporary connection is not feasible.  Only portable chemical toilets should be used and they will be deployed at a location as far away from the SSSI as possible and at least 320m away from Sha Lo Tung Stream.  The toilets should also be surrounded by temporary interceptor drains and appropriately mounted.  A licensed contractor would be responsible for appropriate disposal (by replacing the used portable chemical toilets and no on site cleansing to be allowed) and maintenance of portable toilets.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.9.1, 6.9.2, 6.10.3

S5.2 & 5.3

·     Water Quality Monitoring should be conducted at three monitoring stations of the Sha Lo Tung Perennial Stream (R1-U, R1-M and R1-D) (see Figure 12.2 in EIA Report for their locations).  The monitoring parameters are detailed in Sections 5.2.1 and 5.3.1 of this Manual. 

         i.            The baseline monitoring should be undertaken 3 days per week for at least four weeks at the designated stations prior to the commencement of the construction works.  Baseline monitoring schedule prepared by the ET should be faxed to the IEC, EPD and WSD 1 week prior to the commencement of baseline monitoring.

        ii.            Impact monitoring for in-situ parameters and SS should be undertaken 3 days per week during the course of construction works.  Impact monitoring for oil and grease, ammonia nitrogen, total reactive phosphorus and 5-day biochemical oxygen demand should be carried out once per month during the construction phase.  The proposed water quality monitoring schedule prepared by the ET should be faxed to the IEC, EPD and WSD on or before the first day of the monitoring month.  The IEC, EPD and WSD should be notified immediately of any changes in schedule by fax.

      iii.            Post-project monitoring should be undertaken for 3 days at the designated stations within a week after the completion of the construction works.  Post-project monitoring schedule prepared by the ET should be faxed to the IEC, EPD and WSD 1 week prior to the commencement of post-project monitoring.  The purpose of the monitoring is to verify that contamination to the watercourses by sewage, oil or chemicals arising from the operational activities is not occurring.  The monitoring results will be submitted to EPD, AFCD and WSD after each monitoring event.  After the first twelve-months of monitoring, the monitoring results will be reviewed by the Sha Lo Tung Development Co., Ltd to determine whether it is necessary to extend the monitoring.  The review results will be provided to EPD and WSD for agreement. 

 

 

 

Sha Lo Tung Perennial Stream / Before construction of the Project

 

Sha Lo Tung Perennial Stream / Throughout the construction of the Project

 

 

 

Sha Lo Tung Perennial Stream (R1-U, R1-M and R1-D) / monthly basis during the first twelve months of the operational phase. Two of the monitoring events should be scheduled on the day just after the Ching Ming Festival Day and Chung Yeung Festival Day. 

Environmental Team /Conservation Specialist

 

 

 

 

 

 

 

 

ü

 

 

 

 

 

 

 

 

 

 

 

 

ü

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ü

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ü

-

S6.6.2

-

Surface Runoff and Drainage

After identifying the sub-divisions in the natural topography based on their drainage characteristics it is possible to develop mitigation measures to minimize the impact of the development on the existing drainage system and in particular the discharge into Sha Lo Tung Stream.  The approach to drainage impact mitigation measures has as an overriding objective to retain and maintain the existing quality and quantity of water flow into the Sha Lo Tung natural stream systems downstream of the Development Site.  In doing so it is intended to draw clear distinctions between the following run-off and drainage circumstances:

·     Development Site subject to vehicular traffic (“development vehicular zones”) – where the run-off will be collected using back of kerb filter drains, trapped road gullys and a piped stormwater system.  This will discharge run-off to a pumping station located beneath the car park area with all flows being discharged back over the crest of the access road and into the structured road drainage to be provided as part of the road improvements ;

·     Developments Site with no vehicular traffic (“development non-vehicular zones”) – where porous or semi permeable paved surfaces will be used in association with grassed swales and soakaways to attenuate run-off.  Terraced construction will control the rate of surface runoff with catchpits providing oxygenation and solids removal at the steps formed.  The run-off from the development non-vehicular zone will be routed to pass through vortex grit separator beneath the proposed car park (location refer to Figure 3.8 of the EIA Report) to remove sediments associated with “first flush” flow (details refer to Annex C of the EIA Report).  After removal of sediments clear water can be discharged via a storage tank and non-developed buffer zones (undeveloped naturally vegetated land between the development boundary and the existing stream system) into the existing stream system, which act to reduce the energy and volume of run-off flows before they enter the existing Sha Lo Tung stream system.  The vortex grit separator will be regularly cleaned and maintained in good working condition.  The initial frequency for clearing the vortex grit separator would be based on systematic monitoring at the start of the wet season, after each significant rainfall event (amber/T3 or above) and at intervals not exceeding one month between April and October.  Removal with clearing/disposal as required.  This will provide the required information on the volume of washed down material and this can be used to determine an effective and efficient clearing frequency programme. 

 

 

Within the Development Site / Throughout the operational phase

 

Sha Lo Tung Development Co., Ltd

 

 

 

ü

 

 

Waste Disposal Ordinance

ProPECC PN 5/93

S6.6.2

-

·     Areas within the development site that are either naturally vegetated, landscaped and/or undisturbed area (“non-development zones”) where run-off will not have any interaction with the development and can pass into the existing stream system via buffer zones.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Waste Disposal Ordinance

ProPECC PN 5/93

S6.6.2

-

·     The hazards and risk associated with accidental oil spillage and leakage are negligible because all storm water run-off from the access road and car park within the Development Site will be isolated, collected in pumping station located beneath the proposed car park and then pumped back into the stormwater drainage system for the upgraded access road where it will re-enter the existing main storm water drainage system for the Ting Kong Road.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S6.6.2

-

·     Adoption of the proposed measures in Annex C of the EIA Report (Drainage Assessment and Mitigation Measures).

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S6.6.2

-

Domestic Sewage Effluent

It should be noted that no restaurant will be provided within the Development Site, and no trade effluent discharge will be generated during the operational phase.

·     To cater for this increase in generated sewage during the festival days, the sewage storage tank will be emptied before the festivals and immediately after the festivals.  Several portable toilets will also be erected at the pick up/ drop off point at the entrance of Sha Lo Tung Road (next to Ting Kok Road) during those days.  All of them will be surrounded by temporary intercept drains and appropriately mounted for contingency purpose.  The sewerage storage (equalisation) tank should also be emptied before and immediately after the festivals and should be maintained regularly. 

 

Within the Development Site / Throughout the operational phase

 

Sha Lo Tung Development Co., Ltd

 

 

 

ü

 

 

Water Pollution Control Ordinance

 

 

 

 

 

 

 

S6.6.2 & 6.6.3

-

·     The sewage will be discharged into the foul sewer.  The pumping station, storage tank and all sewers within the water gathering ground will be designed and constructed to comply with the Buildings (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123I) reg. 47A to ensure that they are watertight.  Other requirements of WSD on the design and details of construction will be complied with through the circulation of drainage plans to the Building Authority.  The sewage tank should be fitted with a level indicator and a high level alarm system.  The detailed design of the sewage tank and the associated facilities will submit to WSD for approval prior the construction.  The sewage storage tank will be located at least 40 m away from Sha Lo Tung Stream.  An adequately maintained duty pump with a 100% standby pumping capacity and alternative power supply is considered to be adequate to address pumping requirements in emergency situations.  An approximately 2 km long 225 mm diameter twin sewerage rising mains will be installed from the Development Site running along Sha Lo Tung Road to the existing sewerage network at Ting Kok Road.  The sewage will be discharged regularly to the Tai Po STW.

Within the Development Site  / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Buildings (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123I) reg. 47A

S6.6.2 & 6.6.3

-

·     Regular inspection and maintenance for the storage tanks, piping materials and joints of sewers will be conducted to ensure that leakage of sewage effluent from the tank and pipeline does not occur. 

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S6.6.2

-

·     If leakage or spillage of sewerage does occur, it should be contained and cleaned up promptly.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

Sha Lo Tung Improvement

 

 

S6.6.3

 

 

-

Prevention of Construction Runoff from Polluting the Nearby Watercourse and Ecological Sensitive Areas

·     Arrange the Earthworks to maximise avoidance of the Wet Season.  All the earthworks under Phases 1, 2 and 3, particularly close to the WSRs including Sha Lo Tung SSSI, stream and Fung Yuen Valley SSSI, will be undertaken during the dry season (November to March) in order to avoid the risk of construction runoff overflow to the downstream ecological sensitive areas. 

 

 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

 

 

Construction Contractor

 

 

 

ü

 

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2 & S6.6.3

-

·     Adoption of Construction Sequences.  Given that the total length of Sha Lo Tung Road is approximately 2.3km, the construction sequence will be well managed in order to limit the volume of surface runoff and treated effluent generated on-site, in particular during the wet season (works other than earthworks).  In order to limit the size of exposed areas and volume of the surface runoff, the construction activities will be carried out sequentially (phase by phase) rather than in parallel (refer to Road Improvement Work Plan as shown in Figure 3.22 of the EIA Report. 

Within the Sha Lo Tung Improvement Site/ Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.2 & 6.6.3

-

·     Provision of Temporary Drainage Channels.  To prevent the discharge of silty surface run-off to the existing watercourse, an effective temporary drainage system will be introduced for the road improvement work.  Prior to the construction, temporary hoarding will be erected and sandbags be placed at toe of the hoarding within the works site (refer to Figure 6.4 in the EIA Report) as to prevent any silty water flowing out of the works site.  As shown in Figure 3.22 in the EIA Report, at least two temporary sandtraps connecting with temporary surface drainage will be proposed at each phase of road improvement works (except Phase 3) prior to discharging into the nearest watercourse to avoid any excessive sediment or blockage of existing natural drainage system.  Similar to the construction activities within the Development Site, all of the surface run-off generated along the section close to Sha Lo Tung Valley (approximately half of the Phase 3) will be collected by the temporary drainage system with a sufficient number of sandtraps (with sufficient capacity) and oil interceptors and then discharged to the newly constructed stormwater drainage system along the improved Sha Lo Tung Road.  The drainage system capacity shall be designed for a 1:20 year storm event.  A sandtrap of large capacity is proposed to connect between the temporary drainage system within the Development Site and the newly constructed stormwater drains beneath Sha Lo Tung Road.  All surface runoff within the site will be diverted to this sandtrap before it is discharged out from the site.  Due to the lower level at the surface water collection point within the Development Site, the surface water within the Site will be stored in temporary storage tanks (after passing through sandtrap) in which a submersible pump will operate to continuously pump the surface runoff to the proposed upstream sandtrap.  A spare submersible pump will be put in place in the storage tank for contingency purpose.

Within the Sha Lo Tung Road Improvement/ Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.4

-

Good Site Practices

·     Discharges to the natural water courses shall only take place when the effluent complies with the requirements under the Water Pollution Control Ordinance.  Discharges in the water gathering ground should meet Group A standards for inland waters specified in the Technical Memorandum, Standards for Effluent Discharged into Drainage and Sewerage Systems, Inland and Coastal Waters.

·     All exposed earth areas will be paved or hydroseeded as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks, where practicable.  In the event of rain or at any time when rainstorms are likely to happen, exposed surfaces should be covered by tarpaulin or by other means.

·     All drainage facilities and erosion and sediment control structures will be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rainstorms.  Deposited silt and grit will be removed regularly and disposed of by spreading evenly over stable, vegetated areas.

·     Measures will be taken to reduce the ingress of site drainage into excavations.  If the excavation of trenches in wet periods is necessary, they will be dug and backfilled in short sections wherever practicable.  Water pumped out from trenches or foundation excavations will be discharged into storm drains via silt removal facilities.

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

·     The wheels of all vehicles leaving and entering the construction site shall be washed to minimise the carry over of mud onto Sha Lo Tung Road and into the water gathering grounds.  Wheel wash water shall be recycled and only discharged into the temporary drainage system.

·     Manholes (including newly constructed ones) will always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system.

·     Precautions to be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecasted, and actions to be taken during or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94.  Particular attention will be paid to the control of silty surface runoff during storm events, especially for areas located near steep slopes.

·     Oil interceptors will be provided in the drainage system and regularly emptied to prevent the release of oil and grease into the storm water drainage system after accidental spillages.  The oil interceptors should be cleaned when the volume of oil amounts to 30% of the total volume of the oil interceptor.  The interceptor will have a bypass to prevent flushing during periods of heavy rain.

·     The sandtraps should be cleaned out when the volume of settled sediments amounts to 10% of the total volume of the traps.

 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.4

-

General Construction Activities

·     Debris and rubbish generated on-site will be collected, handled and disposed of properly to avoid entering the nearby stormwater drains and open drainage channels.  The refuse collection point will be properly constructed with covers and will be bunded and drained to the sewerage system.

·     Open storm water drains and culverts near the works area will be covered to block the entrance of large debris and refuse. 

·     Earthworks will be schedule in the dry season (November to March) only and construction sequenced accordingly.

 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

 

S6.6.4

-

Storage and Handling of Oil, Other Petroleum Products and Chemicals

·     Waste streams classifiable as chemical wastes will be properly stored, collected and treated for compliance with Waste Disposal Ordinance or Disposal (Chemical Waste) (General) Regulation requirements.

·     All fuel tanks and chemical storage areas will be provided with locks and be sited on paved areas and at the south of the Development Site.

·     The storage areas will be surrounded by bunds with a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled oil, fuel and chemicals from reaching the receiving waters.

·     Oil leakage or spillage will be contained and cleaned up immediately.  Waste oil should be collected and stored for recycling or disposal, in accordance with the Waste Disposal Ordinance.  The Contractors will prepare guidelines and procedures for immediate clean-up actions following any spillages of oil, fuel or chemicals.

 

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

 

Construction Contractor

 

 

ü

 

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

Waste Disposal Ordinance

Disposal (Chemical Waste) (General) Regulation

S6.6.4

-

Sewage Effluent

·     Appropriate sanitary facilities, such as portable chemical toilets, will be employed at the areas where the temporary connection is not feasible.  Only portable chemical toilets should be used and they will be deployed at a location as far away from the SSSI as possible and at least 320m away from Sha Lo Tung Stream.  The toilets should also be surrounded by temporary interceptor drains and appropriately mounted.  A licensed contractor would be responsible for appropriate disposal (by replacing the used portable chemical toilets and no on site cleansing to be allowed) and maintenance of portable toilets.

Within the Sha Lo Tung Road Improvement Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

S6.6.3

-

Surface Runoff and Drainage

·     It has been demonstrated that the majority of contaminants in stormwater runoff are transported on sediments.  The runoff from the concrete paved areas including the improved Sha Lo Tung Road and car park will be collected using back of kerb filter drains and trapped roads gullies to Highways Department’s standard drawings H3110.  The gullies on the access road and car park within the Development Site will discharge to a piped drainage system linked by backdrop catchpits and collected in a pumping station located beneath the car park.  The collected run-off will then be pumped back over the crest of the access road and back into the structured highway drainage system that ultimately connects to the existing stormwater system in Ting Kok Road.

Within the Sha Lo Tung Road Improvement Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94)

ProPECC PN 5/93

S6.6.3

-

·     Any oil leakage or spillage will be contained and cleaned up immediately. 

Within the Sha Lo Tung Road Improvement Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S6.6.3

-

·     Surface runoff will be diverted and discharged into the newly constructed stormwater drainage system along the improved Sha Lo Tung Road to Tai Po. 

Within the Sha Lo Tung Road Improvement Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S6.6.2 & 6.6.3

-

Domestic Sewage Effluent

·     The sewage will be discharged into the foul sewer.  The pumping station, storage tank and all sewers within the water gathering ground will be designed and constructed to comply with the Buildings (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123I) reg. 47A to ensure that they are watertight.  Other requirements of WSD on the design and details of construction will be complied with through the circulation of drainage plans to the Building Authority.

Within the Sha Lo Tung Road Improvement Site/ Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Buildings (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123I) reg. 47A

S6.6.2 & 6.6.3

-

·     Regular inspection and maintenance for the storage tanks, piping materials and joints of sewers will be conducted to ensure that leakage of sewage effluent from the tank and pipeline does not occur. 

Within the Sha Lo Tung Road Improvement Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

Water Gathering Ground

S6.6.5

-

·     No earth, building materials, fuel, soil or toxic materials or any other materials which may cause contamination to the WGG are allowed to be stockpiled close to any watercourses within the WGG.

·     No discharge of flammable or toxic solvents, petroleum oil or tar and other toxic substances will be allowed within the WGG.  Any chemicals to be stored or used within the WGG will be subject to the approval of the Director of Water Supplies.  The chemicals stored for use during building construction will include paints, varnishes and the like for application to steel, timber and plywood formwork, concrete additives, solvents and thinners, adhesive, bituminous compounds and tars.  Since they will be stored in small quantities and will be properly stored, collected and treated for compliance with Waste Disposal Ordinance or Disposal (Chemical Waste) (General) Regulation requirements.  All fuel tanks and chemical storage areas will be provided with locks and be sited on paved areas and located next to the temporary stockpiling area at the south of the Development Site (Figure 3.11).  The storage areas will be surrounded by bunds with a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled oil, fuel and chemicals from reaching the receiving waters.  As such, the risk of the chemical spillage to the water sensitive receivers, especially the WGG, is expected to be low.  The storage area will be located at the southern side and the lower part of the Development Site to provide at least 320m buffer distance from the SSSI and Sha Lo Tung Stream.

·     In order to prevent the washing away of construction materials, soil, silt or debris into any drainage system and the watercourses within the WGG, the stockpile of such materials will be placed within a designated area measuring about 3m x 20m in the southern part of the Development Site (Figure 6.3 in the EIA Report).  The designated stockpile area will occupy a proposed cut platform formed within the first phase works area and is located at a substantial distance of approximately 320m from Sha Lo Tung SSSI and streams.  The area will be provided with concrete paving, concrete bunds and interceptor drains along its perimeter to prevent the loss of materials such as soil, silt or debris to the surrounding area.  The stockpile will also be covered with tarpaulin or similar impermeable covering materials during rainstorms to ensure that no impact on the water gathering ground, Sha Lo Tung SSSI and streams will arise.  All unavoidable surplus excavated materials will be removed from the works area and delivered by truck on a daily basis to one of the Government’s public fill reception facilities, eg Tuen Mun Area 38 Fill Bank.

·     Regular cleaning of the silt/grease traps will be carried out to ensure that they function properly at all times.

·     All excavated or filled surfaces which have the risk of erosion will always be protected from erosion.

·     Facilities for washing the wheels of vehicles before leaving the site will be provided.

·     No maintenance activities which may generate chemical wastes shall be undertaken in the water gathering grounds

·     Any construction plant which causes pollution to catchwaters or catchment due to leakage of oil or fuel will be removed off site immediately.

·     Any soil contaminated with fuel leaked from plant will be removed off site and the voids arising from removal of contaminated soil will be replaced by suitable material to the approval of the Director of Water Supplies.

·     Temporary toilet facilities (only portable toilets to be allowed) will be provided at a designated area located at the southern part of the Development Site (next to the temporary stockpiling area).  The toilets will be located at a substantial distance of approximately 320m away from the SSSI and the watercourse within the WGG (see Figure 6.3 in the EIA Report) and will also be surrounded by temporary interceptor drains and appropriately mounted.  The details of the chemical toilets shall be submitted to WSD prior to the construction commencement.  A licensed contractor will be appointed to carry out appropriate disposal (by replacing the used portable chemical toilets and no on site cleansing to be allowed) and maintenance of these facilities.  All waste shall be cleared away daily and disposed of outside the WGG. 

·     All mud and debris will be removed from any waterworks access roads and associated drainage systems.

·     For drainage and sewerage diversions within or affecting the WGG, the agreement of the Director of Water Supplies will be required prior to the commencement of the diversion works.

·     The use of pesticide, herbicides or fertilisers will not be allowed within the WGG without the prior approval from the Director of Water Supplies.

·     Disposal of the containers for fuel, oil and other chemicals or their residues within the WGG is strictly prohibited.  They must be disposed of properly outside the WGG.

·     Watertight and leak-proof sewers will be used in the WGG in order to prevent any leakage of sewage.

·     In the unlikely event of spillage of oil and fuel, oil spill control measures and decontamination kit will be deployed to confine the spreading.  Please note that oil will not be stored on site.

·     Construction site runoff will not be allowed to be discharged to the existing water courses within the WGG. 

Within the Water Gathering Ground / Throughout the construction period of the Project

Construction Contractor

 

ü

 

 

-

Sewerage & Sewage Treatment Implications

Ecological Reserve and Sha Lo Tung Road Improvement

 

 

No measures required.

 

 

 

 

 

 

 

Development Site

S7.8

S6.2

Assuming Option 1 Sewage Disposal Scheme is adopted, the following mitigation measures are proposed:

·     Installation of an approximately 2 km long 225 mm diameter twin sewerage rising mains from the Development Site running along Sha Lo Tung Road to the existing sewerage network at Ting Kok Road;

·     Installation of a stand-by pump of 100% pumping capacity in case of mal-function of the working pump; and

·     Construction of a storage tank (fitted with a level indicator and a high level alarm system, designed and constructed to comply with the Buildings (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123I) reg. 47A) of minimum 180 m3 capacity, to give approximately three days withholding time over maximum visitor attendance over festival periods to cater for the situation if the pumping facilities malfunctioned.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S7.8

S6.3

Measures to manage the increase in sewage generation

·     Provision of adequate permanent water closets and urinals in the complex;

·     Emptying of the sewage storage tank before and immediately after the festivals; and

·     Provision of portable toilets at the entrance of Sha Lo Tung road, next to Ting Kok Road for contingency purpose.

Within the Development Site / Throughout the operation  period

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

WASTE MANAGEMENT

Ecological Reserve

 

S8.4.2

 

S7.2 & 7.3

Enhancement Works and Maintenance and Operation

·     Wastes should be handled and stored in a manner which ensures that they are held securely without loss or leakage thereby minimising the potential for pollution.

Within the Ecological Reserve / Throughout the enhancement works, and maintenance and operation

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

S8.4.2

S7.2 & 7.3

·     Appropriate measures should be employed to minimise windblown litter and dust during transportation by either covering trucks or transporting wastes in enclosed containers.

Within the Ecological Reserve / Throughout the enhancement works, and maintenance and operation

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

S8.4.2

S7.2 & 7.3

·     Temporary green waste storage areas should be well maintained and cleaned regularly.

Within the Ecological Reserve / Throughout the enhancement works, and maintenance and operation

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

Development Site

 

S8.4.3

 

S7.2

Good Site Management Programme

·     The in-situ excavated materials should be optimised to be reused for the backfilling during detailed design stage.

Within the Development Site / Detailed design stage

Sha Lo Tung Development Co., Ltd

ü

 

 

 

-

S8.4.3

S7.2

·     The cutting and filling activities for the site formation and slope works should be planned and arranged in such a way that the requirement for stockpiling will be minimized.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

 

S8.4.3

S7.2

·     Should there be any requirement for the temporary storage of excavated materials destined for reuse within the Project, the stockpile of such materials will be placed within a designated area measuring about 3m x 20m in the southern part of the Development Site (Figure 3.11 in the EIA Report).  The designated stockpile area will occupy a proposed cut platform formed within the first phase works area and is located at a substantial distance of 320 m from Sha Lo Tung SSSI and streams.  The area will be provided with concrete paving, concrete bunds and interceptor drains along its perimeter to prevent the loss of materials such as soil, silt or debris to the surrounding area.  The stockpile will also be covered with tarpaulin or similar impermeable covering materials during rainstorms to ensure that no impact on the water gathering ground, Sha Lo Tung SSSI and streams will arise.  All unavoidable surplus excavated materials will be removed from the works area and delivered by truck on a regular basis to one of the Government’s public fill reception facilities, eg Tuen Mun Area 38 Fill Bank.  The Contractor should consult the EPD (and CEDD) for the final disposal of wastes.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     Good management and control can prevent generation of significant amount of waste.  Waste reduction is best achieved at the planning and design stage, as well as by ensuring the implementation of good site practices.  Recommendations to achieve waste reduction include:

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

        ii.            Encourage collection of aluminium cans and waste paper by individual collectors during construction with separate labelled bins being provided to allow the segregation of these wastes from other general refuse generated by the workforce;

      iii.            Any unused chemicals and those with remaining functional capacity be recycled as far as possible;

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

        v.            Prior to disposal of construction waste, wood, steel and other metals should be separated, to the extent practical for re-use and/or recycling to reduce the quantity of waste to be disposed at landfills;

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

     vii.            Plan and stock construction materials carefully to reduce amount of waste generated and avoid unnecessary generation of waste.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3 & 8.4.4

S7.2 & 7.3

·     Wastes should be handled and stored in a manner which ensures that they are held securely without loss or leakage thereby minimising the potential for pollution.

Within the Development Site / Throughout the construction and operation period

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

S8.4.3

S7.2

·     Only reputable waste collectors authorised to collect the specific category of waste concerned should be employed.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     Appropriate measures should be employed to minimise windblown litter and dust during transportation by either covering trucks or transporting wastes in enclosed containers.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3 & 8.4.4

S7.2 & 7.3

·     The necessary waste disposal permits should be obtained from the appropriate authorities, if they are required, in accordance with the Waste Disposal Ordinance Cap 354, Waste Disposal (Chemical Waste) (General) Regulation Cap 354 and the Land (Miscellaneous Provision) Ordinance Cap 28.

Within the Development Site / Throughout the construction and operation period

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

Waste Disposal Ordinance Cap 354, Waste Disposal (Chemical Waste) (General) Regulation Cap 354 and Crown Land Ordinance Cap 28

S8.4.3

S7.2

·     Chemical waste shall be handled and stored in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes to minimise any danger to health of risk and pollution to the environment.  Under the Chemical Waste Regulations, all producers of chemical waste should register with EPD.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes

S8.4.3

S7.2

·     Collection of general refuse should be carried out frequently, preferably daily.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3 & 8.4.4

S7.2 & 7.3

·     Waste should only be disposed of at licensed sites, and site staff and the Contractor should develop procedures to ensure that illegal disposal of wastes does not occur.

Within the Development Site / Throughout the construction and operation period

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

S8.4.3

S7.2

·     Waste storage areas should be well maintained and cleaned regularly.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     Records of the quantities of wastes generated, recycled and disposed, determined by weighing each load or other method, should be maintained to check whether any targets for waste recycling, reduction etc are being met.

Within the Development Site /Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3 & 8.4.4

S7.2 & 7.3

·     Training and instruction of site staff should be given at the site to increase awareness and draw attention to waste management issues and the need to minimise waste generation.

Within the Development Site / Throughout the construction and operation period

Construction Contractor and Sha Lo Tung Development Co., Ltd

 

ü

ü

 

-

S8.4.3

S7.2

·     The Construction Waste Disposal Charging Scheme was launched on 1 December 2005 and the charging for disposal of construction waste commenced on 20 January 2006.  Through the Charging Scheme, construction waste producers (i.e. contractors) are encouraged to reduce, sort and recycle construction waste, in particular the wood materials, so that their disposal costs can be minimised and valuable landfill space can be preserved.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

Waste Disposal (Charges for Disposal of Construction Waste) Regulation, December 2005

ETWBTC No 31/2004, Trip Ticket System for Disposal of Construction and Demolition Materials

S8.4.3

S7.2

·     The Contractor should separate public fill from non-inert construction waste for disposal at appropriate locations and to sort the construction waste by category on-site to facilitate reuse/recycling and reduce the quantity of waste to be disposed of.  The Contractor will be required to break down any over-sized public fill to less than 250 mm in size for disposal so as to facilitate its re-use by other reclamation or earth-filling projects.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     A trip-ticket system (TTS) will also be established in accordance with Works Bureau Technical Circular No.31/2004 to monitor the disposal of construction waste at the Tuen Mun Area 38 Fill Bank or other approved designated public fill facilities, and to control fly-tipping.  The trip-ticket system will be included as one of the contractual requirements and implemented by the contractor.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     In order to fully implement the TTS, it is recommended that warning signs should be put up at all vehicle accesses to remind the drivers of dump truck of the proper designated disposal outlet and the penalties of offence.  Close-circuited television (CCTV) is recommended to be installed at the access points to monitor and prevent illegal dumping, especially during night time.  Site fences should be installed to prevent illegal dumping at non-designated area within the Site.

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.3

S7.2

·     A Waste Management Plan (WMP) as a part of Environmental Management Plan (EMP) should be prepared by the Contractor prior to the commencement of construction as part of the contractual requirement.  The WMP should be prepared in accordance with ETWB TCW No. 19/2005 which describes the arrangements for avoidance, reuse, recovery, recycling, storage, collection, treatment and disposal of different categories of waste to be generated from the construction activities.  The plan should incorporate site-specific factors, such as the designation of areas for the segregation and temporary storage of reusable and recyclable materials.  The Contractor should implement the waste management practices in the WMP throughout the construction stage of the Project.  The WMP should be reviewed regularly and updated by the Contractor, preferably in a monthly basis, to incorporate any revisions, measures or suggestions discovered during the construction periods for implementation

Within the Development Site / Throughout the construction period

Construction Contractor

 

ü

 

 

-

S8.4.4

S7.2

·     Waste reduction and minimisation should be considered at the planning and design stage.

Within the Development Site / Prior to the commencement of the operation of the Project

Sha Lo Tung Development Co., Ltd

ü

 

 

 

-

S8.4.4

S7.3

·     Different types of wastes (i.e. general refuse and office waste) should be segregated and stored separately.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     Wastes should be handled and stored in a manner which ensures that they are held securely without loss or leakage thereby minimising the potential for pollution.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     The necessary waste disposal permits should be obtained from the appropriate authorities, if they are required, in accordance with the Waste Disposal Ordinance Cap 354, Waste Disposal (Chemical Waste) (General) Regulation Cap 354 and the Land (Miscellaneous Provision) Ordinance Cap 28

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Waste Disposal Ordinance Cap 354, Waste Disposal (Chemical Waste) (General) Regulation Cap 354 and the Land (Miscellaneous Provision) Ordinance Cap 28

S8.4.4

S7.3

·     Collection of general refuse should be carried out on a daily basis.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     General refuse should be collected from lidded bins and delivered to a central collection point and should be stored in enclosed containers to prevent odour, windblown litter, vermin, water pollution and visual impacts.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     A properly constructed covered refused collection point that is bunded and drained to the sewerage system should be provided.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     Waste should only be disposed of at licensed sites.  The Contractor should develop procedures to ensure that illegal disposal of wastes does not occur.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     Waste storage areas should be well maintained and cleaned at least once a day.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     Separation of recyclables from waste stream should be encouraged and may occur before or after the delivery of the wastes to the central collection point.

 

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

-

S8.4.4

S7.3

·     Chemical waste should be handled in accordance with Chemical Waste Regulations and the Code of Practice on the Packaging, Labelling and Storage of Chemical Waste.  Chemical waste should be placed in approved containers, stored in a secure area and sent to a facility licensed to receive chemical waste by the EPD, such as the Clinical Waste Treatment Centre in Tsing Yi.  Under the Chemical Waste Regulations, all producers of chemical waste should register with the EPD.

Within the Development Site / Throughout the operational phase

Sha Lo Tung Development Co., Ltd

 

 

ü

 

Waste Disposal (Chemical Waste) (General) Regulation

Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes

S8.4.4

S7.3

·     Training and instruction of staff should be given to increase awareness and draw attention to waste management issues and the need to minimise waste generation.