Cycle Track between Tsuen Wan and Tuen
Mun (Tuen Mun to So Kwun Wat)
Environmental Monitoring and Audit Manual
Civil Engineering and Development Department
April 2022
Contents
Chapter
1.2. Project Implementation Programme
1.4. Contents
in this EM&A Manual
2.1. Key
Parties and Organisation Chart
3.2. EM&A
Requirements During Construction Phase
3.3. EM&A Requirements During Operational Phase
4.2. EM&A
Requirements During Construction Phase
4.3. Noise
Mitigation Measures
4.4. EM&A Requirements During Operational Phase
5.4. Measurement and Laboratory Analysis
5.6. Baseline Water Quality Monitoring
5.7. Impact Water Quality Monitoring
5.10. Construction Site Audit and Inspection
12.2. Environmental Compliance
12.3. Environmental
Complaints
13.2. Baseline Monitoring Report
13.4. Quarterly
EM&A Summary Reports
13.5. Final
EM&A Summary Report
13.6. Termination
of EM&A Programme
13.8. Electronic
Reporting of EM&A Information
13.9. Interim
Notifications of Environmental Quality Limit Exceedances
14. Implementation Schedule
of Mitigation Measures
Figures
|
Locations
of Noise Monitoring Stations |
Appendices
|
Construction Noise Monitoring Field Record
Sheet |
|
|
Sample Template for Interim Notifications of
Environmental Quality Limits Exceedances |
1.1.1. The EIA Study Brief (No: ESB-295/2016) for “Cycle Track between Tsuen Wan and Tuen Mun (Tuen Mun to So Kwun Wat)” (the Project) includes the requirement to prepare an Environmental Monitoring and Audit (EM&A) programme.
1.1.2. The scope of the Project comprises the following:
i. Construction of new cycle tracks of about 3.6 km long from Hin Fat Lane and Hoi Wing Road at Tuen Mun to Kwun Tsing Road at So Kwun Wat with associated footpaths
ii. Construction of a marine cycle bridge with footpath of about 200 m long between Cafeteria Old Beach and Kadoorie Beach.
iii. Provision of cycle parking areas near Hin Fat Lane, Cafeteria Old Beach and Kwun Tsing Road.
1.1.3. The alignment of cycle track is shown in Figure 1.1.
1.2.1. The construction is scheduled to commence in the 1st quarter of 2023 and will be completed by the 3rd quarter of 2026 tentatively.
1.3.1. The purpose of this EM&A Manual (hereafter refer to as the “Manual”) is to guide the setup of an EM&A programme to ensure compliance with the EIA study recommendations, to assess the effectiveness of the recommended mitigation measures and to identify any further need for additional mitigation measures or remedial action. This Manual outlines the monitoring and audit programme for both the construction and operational phase of the Project. It aims to provide systematic procedures for monitoring, auditing and minimising environmental impacts associated with the construction and operational phases.
1.3.2. This Manual specifies the EM&A requirements to ensure that the mitigation measures recommended in the EIA are effectively implemented and the whole EM&A programme properly managed.
1.4.1. This EM&A Manual is prepared in accordance with Annex 21 of the Technical Memorandum on EIA Process (EIAO-TM) and the EIA Study Brief for the Project and follows the approach recommended in the EM&A Guidelines for Development Projects in Hong Kong.
1.4.2. The EM&A Manual contains the following information:
§ project organization for the Project;
§ responsibilities of the Contractor, the
Engineer or Engineer’s Representative (ER) and Environmental Team (ET) with
respect to the environmental monitoring and audit requirements during the
course of the Project;
§ requirements with respect to the
construction programme schedule and the necessary environmental monitoring and audit
programme to track the varying environmental impact;
§ details of the methodologies to be adopted,
including all field laboratories and analytical procedures, and details on
quality assurance and quality control programme;
§ definition of Action and Limit Levels;
§ establishment of Event and Action Plans;
§ requirements for reviewing pollution sources
and working procedures required in the event of non-compliance with the
environmental criteria and complaints;
§ requirements for presentation of
environmental monitoring and audit data and appropriate reporting procedures.
1.4.3. An implementation schedule of the environmental mitigation measures has been developed and presented in Section 14 in accordance with the requirements of Clause 3.5.3 of the EIA Study Brief.
2.1.1.
Involvement of relevant parties in a
collaborative and interactive manner is essential for the implementation of the
recommended EM&A programme. The
lines of communication with respect to EM&A works are shown in the Project
Organisation diagram below.
Project Organisation
2.1.2.
Sufficient and
suitably qualified professional and technical staff shall be employed by the
respective parties to ensure full compliance with their duties and
responsibilities, as required under this EM&A Manual for the whole duration
of this Project.
2.1.3.
Civil
Engineering and Development Department (CEDD) is the project proponent and
works department and hence will assume overall responsibility for the
construction of the Project.
2.1.4.
Environmental
Protection Department (EPD) is the statutory enforcement body for environmental
protection matters in Hong Kong.
2.1.5.
The Engineer’s
Representative (ER) shall appoint an appropriate member of the resident site
staff, who shall:
(i)
monitor
the Contractor’s compliance with the contract specifications, including the
EM&A programme, and the effective implementation and operation of
environmental mitigation measures in a timely manner;
(ii)
ensure that
impact monitoring is conducted at the correct locations at the correct
frequency as identified in the EM&A programme;
(iii)
instruct
the Contractor to follow the agreed protocols or those In the Contract
Specifications in the event of exceedances or complaints;
(iv)
review
the programme of works with a view to identifying any potential environmental
impacts before they arise;
(v)
check
that mitigation measures that have been recommended in the EIA Report, this
document and contract documents, or as required, are correctly implemented in a
timely manner, when necessary;
(vi)
report
the findings of site audits and other environmental performance reviews to CEDD;
(vii)
verify
the environmental acceptability of permanent and temporary works, relevant
design plans and submissions; and
(viii)
comply
with the agreed Event Contingency Plan in the event of any exceedance.
2.1.6.
The Contractor
shall assign an on-site environmental coordinator to oversee Contractor’s
environmental performance and the implementation of the EM&A duties. The coordinator shall be a person who has
relevant professional qualifications in environmental control and is subject to
approval by the ER.
2.1.7.
The broad
categories of works of the Contractor comprise the following:
(i)
Work
within the scope of the construction contract and other tender conditions with
respect to environmental requirements;
(ii)
Operate
and strictly adhere to the guidelines and requirements in this EM&A
programme and contract specifications;
(iii)
Provide
assistance to ET in carrying out monitoring;
(iv)
Participate
in the site inspections undertaken by the ET as required, and undertake
correction actions;
(v)
Provide
information / advice to the ET regarding works activities which may contribute,
or be continuing to the generation of adverse environmental conditions;
(vi)
Submit
proposals on mitigation measures in case of exceedances of Action and Limit
levels in accordance with the Event / Action Plans;
(vii)
Implement
measures to reduce impact where Action and Limit levels are exceeded; and
(viii)
Adhere
to the procedures for carrying out complaint investigation.
2.1.8.
The Contractor
should also participate in the environmental performance review undertaken by
the ER and undertake any corrective actions as instructed by the ER.
2.1.9.
An Independent
Environmental Checker (IEC) shall be employed before the commencement of
construction of the Project. The IEC shall not be in any way an associated body
of the Contractor or the ET for the Project. The IEC shall be a person who has
at least 7 years of experience in EM&A or environmental management.
2.1.10.
The IEC shall
be responsible for the duties defined in this Manual, and shall audit the
overall EM&A programme, including the implementation of all environmental
mitigation measures, submissions required in this Manual, as well as any other
relevant submissions required under the Environmental Permit. The IEC shall be responsible for verifying
the environmental acceptability of permanent and temporary works, relevant
design plans and submissions under the EP. The IEC shall verify the logbook
prepared and kept by the ET Leader. The
IEC shall notify EPD within 24 hours of receipt of notification from the ET
Leader of any such instance or circumstance or change of circumstances or
non-compliance with the EIA Report or the Environmental Permit, which might
affect the monitoring or control of adverse environmental impact.
2.1.11.
The main
duties of the IEC are to carry out independent environmental audit of the
project. This shall include, inter
alias, the following:
(i)
Review and
audit in an independent, objective and professional manner in all aspects of
the EM&A programme;
(ii)
Validate
and confirm the accuracy of monitoring results, appropriateness of monitoring
equipment, monitoring locations with reference to the locations of the nearby
sensitive receivers, and monitoring procedures;
(iii)
Carry
out random sample check and audit on monitoring data and sampling procedures, etc.;
(iv)
Conduct
random site inspection (at least once a month);
(v)
Audit
the EIA recommendations and EP requirements against the status of
implementation of environmental protection measures on site;
(vi)
Review
the effectiveness of environmental mitigation measures and Project
environmental performance; and
(vii)
On an
as needed basis, verify and certify the environmental acceptability of the
construction methodology (both temporary and permanent works), relevant design
plans and submissions under the environmental permit. Where necessary, the IEC shall agree in
consultation with the ET Leader and the Contractor the least impact alternative;
(viii)
Verify
investigation results of complaint cases and the effectiveness of corrective measures;
(ix)
Verify
EM&A reports submitted and certified by the ET Leader; and
(x)
Feedback
audit results to ER/ ET by signing according to the Event/ Action Plans specified
in this Manual.
2.1.12.
An
Environmental Team (ET) shall be established before the commencement of
construction of the Project. The ET shall not be in any way an associated body
of the Contractor or the IEC for the Project. The ET shall be headed by an ET
Leader. The ET Leader shall be a person who has at least 7 years of experience
in environmental monitoring and auditing (EM&A) or environmental
management.
2.1.13.
The ET Leader
shall be responsible for the implementation of the EM&A programme in accordance
with the EM&A requirements specified in this Manual and the EP. The ET Leader shall keep a contemporaneous
logbook for recording each and every instance or
circumstance or change of circumstances that may affect the compliance with the
recommendations of the EIA report. This
logbook shall be kept readily available for inspection by the IEC, and Director
of Environmental Protection (DEP) or his authorised officers.
2.1.14.
Sufficient and
suitably qualified professional and technical staff shall be employed by the
respective parties to ensure full compliance with their duties and
responsibility, as required under the EM&A programme for the duration of
the project.
2.1.15.
The broad
categories of works of the ET comprise the following:
(i)
To
monitor the various environmental parameters as required by the EM&A programme;
(ii)
To
follow up and close out of the non-compliance actions;
(iii)
To
investigate and audit the Contractor’s equipment and work methodologies with
respect to pollution control and environmental mitigation, and to anticipate
environmental issues that may require mitigation before the problem arises;
(iv)
To
audit and prepare audit reports on the environmental monitoring data and the
site environmental conditions;
(v)
To
review the EM&A programme after the collection and analysis of the baseline
data;
(vi)
To
modify the EM&A programme in terms of parameters, sites, sample sizes,
frequency etc. if appropriate in consultation with the ER and EPD; and
(vii)
To
report the environmental monitoring and audit results to the IEC, Contractor and the ER.
3.1.1. The air quality impact assessment in the EIA has concluded that no significant impacts would arise from the construction and operation of the Project. With proper implementation of dust control measures required under the Air Pollution Control (Construction Dust) Regulation and good site practices as recommended in the EIA report, the Project would unlikely result in adverse air quality impacts. The ET shall check the Contractor’s implementation of air quality control measures to minimize the construction dust emissions during the regular site environmental audits.
3.2.1. No specific construction dust monitoring is recommended, given that the dust control measures as required under the Air Pollution Control (Construction Dust) Regulation and the mitigation measures recommended in the EIA are properly implemented.
3.2.2. The ET shall undertake regular environmental site inspection (at least once per week) during the construction works to ensure the proper implementation of mitigation measures for potential construction dust emissions.
· The works area for site clearance shall be sprayed with water before, during and after the operation so as to maintain the entire surface wet;
· Restricting heights from which materials are to be dropped, as far as practicable, to minimize the fugitive dust arising from unloading/ loading;
· Immediately before leaving a construction site, all vehicles shall be washed to remove any dusty materials from the bodies and wheels. However, all spraying of materials and surfaces should avoid excessive water usage;
· Where a vehicle leaving a construction site is carrying a load of dusty materials, the load shall be covered entirely by clean impervious sheeting to ensure that the dusty materials will not leak from the vehicle;
· Travelling speeds should be controlled to reduce traffic induced dust dispersion and re-suspension within the site from the operating haul trucks;
· Erection of hoarding of not less than 2.4 m high from ground level, where appropriate;
· Any stockpile of dusty materials shall be covered entirely by impervious sheeting; and/or placed in an area sheltered on the top and 4 sides;
· All dusty materials shall be sprayed with water or a dust suppression chemical immediately prior to any loading, unloading or transfer operation so as to maintain the dusty materials wet.
· Non-road Mobile Machinery should be approved or exempted with a label issued by EPD. The label should be displayed at a conspicuous position of the machine or vehicle.
· The requirements stipulated in the Works Branch Development Bureau Technical Circular (Works) No. 8/2010 Enhanced Specification for Site Cleanliness and Tidiness should be followed as far as practicable to enhance the cleanliness and tidiness of construction sites.
3.3.1. No specific monitoring during the operational phase of the Project is required.
4.1.1. The construction noise impact assessment in the EIA indicated that noise impacts would be expected from the construction of the Project at existing NSRs. Noise monitoring during construction phase of the project is therefore recommended.
4.1.2. Regular site audits should be undertaken to inspect the construction activities and works area in order to ensure the recommended mitigation measures are properly implemented to minimize the noise disturbance to the existing NSRs.
4.2.1. Noise monitoring is recommended to be undertaken at the following monitoring stations. Details of the proposed monitoring stations are provided in Table 4.1 and their locations are indicated in Figure 4.1.
Table 4.1 Proposed Noise Monitoring Stations
|
Noise Monitoring Station ID |
Description |
|
NM1 |
Crossroads Foundation |
|
NM2 |
Seacoast Royale Tower 3 |
|
NM3 |
TMTL 518 Tower 8 |
|
NM4 |
Blessing Villa Block F |
|
NM5 |
Villa La Plage House 8 |
|
NM6 |
Boulder Lodge Staff Quarter |
|
NM7 |
Castle Peak Sam Chau Ma Temple |
|
NM8 |
The Salvation Army Sam Shing Nursery School |
|
NM9 |
Fu Hong Society Yau Chong Home |
4.2.2. Should the status and location of NSRs be changed after issuing this Manual, the ET Leader shall propose updated monitoring location(s) and seek approval from IEC and agreement from EPD of the proposal. When proposing alternative monitoring location, it should be chosen based on the following criteria:
· Locations that are close to the major site activities which are likely to have noise impacts;
· Close to the noise sensitive receivers; and
· For monitoring locations located in the vicinity of the sensitive receivers, care should be taken to cause minimal disturbance to the occupants during monitoring.
4.2.3. The monitoring location shall normally be at a point 1 m from the exterior of the building facade and be at a position 1.2 m above the ground.
4.2.4. If there is a problem with access to the normal monitoring position, an alternative position may be chosen, and appropriate correction to the measurements shall be made. For reference, a correction of +3 dB(A) shall be made to the free field measurements. The ET Leader shall agree with the IEC on the monitoring position and the corrections adopted.
4.2.5. Noise measurements shall be recorded on a field data sheet together with relevant information including project name, date and time of sampling, monitoring location and parameters, site observations and remarks. Sample noise field data sheets are shown in Appendix A of this Manual for reference. The ET Leader may modify the data record sheet for this EM&A programme but the format of which should be agreed by the IEC.
4.2.6. Construction noise level at the proposed noise monitoring stations shall be measured by the ET in terms of the A-weighted equivalent continuous sound pressure level (Leq). Noise measurements shall be carried out with an integrating sound level meter using the ‘fast’ response mode. Leq(30 min) shall be used as the monitoring parameter for the time period between 07:00-19:00 hours on normal weekdays. For all other time periods, Leq(5 min) will be employed for comparison with the Noise Control Ordinance (NCO) criteria.
4.2.7. Supplementary information for data auditing statistical results such as L10 and L90 shall also be obtained for reference. Sample noise field data sheets are shown in Appendix A of this Manual for reference. The ET Leader may modify the data record sheet for this EM&A programme but the format of which should be agreed by the IEC.
4.2.8. As referred to in the Technical Memorandum (TM) issued under the Noise Control Ordinance (NCO), sound level meters in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications should be used for carrying out the noise monitoring. Immediately prior to, and following, each noise measurement the accuracy of the sound level meter should be checked using an acoustic calibrator generating a known sound pressure level at a known frequency. Measurements may be accepted as valid only if the calibration level from before and after the noise measurement agrees to within 1.0 dB. Noise measurements shall not be made in the presence of fog, rain, wind with a steady speed exceeding 5 m/s or wind with gusts exceeding 10 m/s. The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m/s.
4.2.9. Annual calibration of all sound level meters and acoustic calibrators shall be conducted by a laboratory in Hong Kong or the manufacturer in compliance with national standards as recommended by the manufacturer of the sound level meter and acoustic calibrator.
4.2.10. The ET Leader shall be responsible for the provision of the monitoring equipment and associated accessories and power supply. He shall ensure that sufficient noise measuring equipment and associated instrumentation are available for carrying out the regular impact monitoring and ad hoc monitoring. All the equipment and associated instrumentation shall be clearly labelled.
4.2.11. The ET shall conduct noise monitoring at the designated monitoring station. Noise monitoring shall be conducted on a weekly basis when construction activities are underway within 300 m of the proposed monitoring station. Before the monitoring starts, a schedule of noise monitoring should be submitted to the IEC for approval and onsite audit of the accuracy of the monitoring result where necessary. As it is expected that no construction works can be conducted during the restricted hours defined under the Noise Control Ordinance (NCO) while meeting the noise criteria, one set of measurement shall be taken between 07:00-19:00 hours normal weekdays when construction works are underway.
4.2.12.
The Action and Limit Levels for construction
noise monitoring are defined in Table
4.2.
Table 4.2 Action and Limit Levels for Construction Noise Monitoring
|
Noise Sensitive Uses |
0700 to 1900 hours on any day not being a Sunday or general holiday, Leq (30 min), dB(A) |
|
|
Action |
Limit |
|
|
Domestic Premise |
When one documented complaint is received |
75 |
|
Hostel |
75 |
|
|
Place of Public Worship |
70 |
|
|
Education Institution |
70 during normal teaching period / 65 during examination period |
|
4.2.13. The Action and Limit levels for construction noise monitoring are defined in Table 4.2. Should non-compliance of the noise criteria occur, actions in accordance with the Event and Action Plan given in Table 4.3 should be carried out.
Table 4.3 Event and Action Plan for Construction Noise Monitoring
|
Event |
Action |
|||
|
ET Leader |
IEC |
ER |
Contractor |
|
|
Action Level is reached |
1.
Notify IEC, ER
and Contractor 2.
Carry out
investigation 3.
Report the
results of investigation to the IEC, ER and Contractor 4.
Discuss with the
Contractor and formulate remedial measures 5.
Increase
monitoring frequency to check mitigation effectiveness |
1. Review the analysed results submitted by the ET 2. Review the proposed remedial measures by the
Contractor and advise the ER accordingly 3. Supervise the implementation of remedial measures |
1.
Confirm receipt of
notification of failure in writing 2.
Notify
Contractor 3.
Require
Contractor to propose remedial measures for the analysed noise problem 4.
Ensure remedial
measures are properly implemented |
1. Submit noise mitigation proposals to IEC 2. Implement noise mitigation proposals |
|
Limit Level is reached |
1.
Notify IEC, ER,
EPD and Contractor 2.
Identify source 3.
Repeat
measurement to confirm findings 4.
Increase
monitoring frequency 5.
Carry out analysis
of Contractor's working procedures to determine possible mitigation to be
implemented 6.
Inform IEC, ER
and EPD the causes & actions taken for the exceedances 7.
Assess
effectiveness of Contractor's remedial actions and keep IEC, EPD and ER
informed of the results 8.
If exceedance
stops, cease additional monitoring |
1.
Discuss amongst
ER, ET, and Contractor on the potential remedial actions 2.
Review
Contractor's remedial actions whenever necessary to assure their
effectiveness and advise the ER accordingly 3.
Supervise the
implementation of remedial measures |
1. Confirm receipt of notification of failure in writing 2. Notify Contractor 3. Require Contractor to propose remedial measures for
the analysed noise problem 4. Ensure remedial measures are properly implemented 5. If exceedance continues, consider what portion of the
work is responsible and instruct the Contractor to stop that portion of work
until the exceedance is abated |
1. Take immediate action to avoid further exceedance 2. Submit proposals for remedial actions to IEC within 3
working days of notification 3. Implement the agreed proposals 4. Resubmit proposals if problem still not under control 5. Stop the relevant portion of works as determined by
the ER until the exceedance is abated |
|
Note: ET – Environmental Team IEC – Independent Environmental Checker ER – Engineer’s Representative |
||||
4.3.1. Mitigation measures to reduce the construction noise impacts, which involves the adoption of quality PME, provision of temporary noise barrier and noise enclosure for PME, use of quieter equipment or construction method (e.g. non-explosive chemical expansion agent and hydraulic crusher), and good scheduling of works to avoid concurrent construction activities, have been recommended in Section 4.8 to 4.10 of the EIA Report. All the recommended mitigation measures are detailed in the implementation schedule in Table 14.2.
4.3.2. In general, to reduce the noise impact on Crossroads Foundation, Starfront Royale Tower 1 and 2, Seacoast Royale Tower 3, TMTL 518 Tower 8, Blessing Villa Block F, Surfside, Villa La Plage, Boulder Lodge Staff Quarter, Castle Peak Sam Chau Ma Temple and Fu Hong Society Yau Chong Home, non-explosive chemical expansion agent and a concrete pump instead of circular wood saw and concrete lorry mixer, respectively, will be used during the construction of drainage and utilities, while the hand-held jigsaw will replace the circular wood saw for site clearance works.
4.3.3. Due to site constraints, dump truck, lorry and concrete lorry mixer would not be able to access the site at workfronts 008 and 009. Similarly, as an additional mitigation measures to reduce the noise impact on Crossroads Foundation, Starfront Royale Tower 1 and 2, Seacoast Royale Tower 3, TMTL 518 Tower 8 and Villa La Plage, dump truck and lorry will be restricted from accessing workfronts 003, 004, 005, 006, 010, 011 and 012. Considering the inaccessible/restricted distance to the above workfronts is relatively short, only a concrete pump with noise enclosure will be required to replace the concrete lorry mixer. All transportation of materials, including the concrete, will be carried out by trolley with manpower.
4.3.4. Based on site survey, the G/F of Blessing Villa Block F will be completely blocked by boundary walls and will not have direct line-of-sight to the nearby Project workfronts (i.e. workfronts 008 and 009). Nevertheless, additional temporary noise barrier will be provided in front of the NSR so as to offer protection to the upper floors. Cross-sectional drawing to demonstrate the provision of the boundary wall and temporary noise barriers is provided in Figure 4.4.1 of the EIA Report for reference. To further reduce the noise impact on Blessing Villa Block F, the concrete pump will be placed at least 11.5m away.
4.3.5. For Seacoast Royale Tower 3 and Villa La Plage, Contractor shall erect substantial fixed barriers with a minimum surface density of 10 kg/m2 and constructed with sufficient height and length to completely screen the PME to be used on the construction site such that none of the PME will be visible when viewed from any openings of the NSRs. The fixed noise barriers shall also be constructed with no openings and gaps at joints to avoid noise leakage. A plant inventory for N016A Villa La Plage House 15 and N017A Villa La Plage House 25 is shown in Appendix 4-4F of the EIA Report and the cross-sectional drawings to demonstrate the provision of substantial fixed barriers in front of Seacoast Royale Tower 3 and Villa La Plage are provided in Figures 4.4.2 to 4.4.5 of the EIA Report for reference. To further reduce the noise impact, the concrete pump will be placed at least 7.5m away from Seacoast Royale Tower 3 and 26m away from Villa La Plage.
4.3.6. Additional temporary noise barriers shall be provided in front of Castle Peak Sam Chau Ma Temple to block the sightline to the adjacent workfront to alleviate the potential noise impact. Recommendation to further reduce the construction noise impact to Castle Peak Sam Chau Ma Temple is summarised in Table 4.4 below. In any case, the Contractor shall establish a communication channel with the operator of Castle Peak Sam Chau Ma Temple and maintain liaison with the temple on the works schedule, in particular when the PMEs are unavoidably close to the temple, e.g. when the asphalt paver is operating at 30m or less away from the temple, the Contractor shall re-schedule the works when no ritual services are held in the temple, in collaboration with the temple operator. Nevertheless, the works near Castle Peak Sam Chau Ma Temple are expected to last only for a short period (~ 1 week). With continuous liaison, construction noise impacts on the temple are expected to be controlled to acceptable level.
Table 4.4 Recommendation for Works near Castle Peak Sam Chau Ma Temple
|
Recommendation |
PME |
|
Operate the PME
at least 30m away from the NSR and provided with movable noise barrier in
between. |
- Dump Truck (5.5 tonne < gross vehicle weight ≤ 38 tonne) |
|
Place the PME
at least 30m away from the NSR and provided with noise enclosure. |
-
Air Compressor, air flow > 10m3/min and ≤ 30m3/min -
Generator, super silenced -
Concrete Pump, stationary |
|
Maintain
liaison with the temple operator on works schedule; Provided with movable
noise barrier in between. |
-
Asphalt Paver -
Drill/grinder, hand-held (electric) -
Jig-saw, hand-held,
wood (electric) -
Excavator, mini-robot mounted -
Mobile Crane -
Lorry, with crane/grab, 5.5 tonne < gross vehicle weight ≤ 38 tonne -
Road Roller -
Poker, vibratory, hand-held (electric) |
|
Maintain
liaison with the temple operator on works schedule; Provided with noise
enclosure. |
-
Breaker, hand-held, mass >10kg and < 20kg |
|
Maintain
liaison with the temple operator on works schedule; Use of quieter
construction method |
-
Non-explosive Chemical Expansion Agent |
4.3.7. For the Salvation Army Sam Shing Nursery School, the prediction result indicated that no exceedance is anticipated during non-examination period, while up to 2 dB(A) noise exceedance is expected to occur if works are to be conducted during the examination period for the Salvation Army Sam Shing Nursery School. As precautionary measures, terms will be specified in the contractual documents requiring Contractor to liaise with the school’s management for the schedule of construction works, to avoid carrying out noisy construction activities during examination period.
4.3.8. Concurrent projects located within the 300m of the Project have been identified. The key concurrent projects include HyD’s Widening of Castle Peak Road – Castle Peak Bay, Traffic Improvement Scheme in Tuen Mun; ASD’s District Open Space in Area 27 (Sam Shing), Tuen Mun; HKHA’s Construction of Public Housing Development at Hin Fat Lane, Tuen Mun; MTRC’s Tuen Mun South Extension; HyD’s Tuen Mun Bypass and, CEDD’s Site Formation and Infrastructure Works for Public Housing Developments at Tuen Mun Central. According to the information available at the time of preparing the EIA report, the construction period for the concurrent projects mentioned above is between 2020 and 2036, whilst for the Traffic Improvement Scheme in Tuen Mun, there is no scheduled start date for the works as it is still at early feasibility study stage. Tentative completion of this Traffic Improvement Scheme in Tuen Mun is 2031.
4.3.9. Given the long project extent, the Project will be constructed in phases, and the construction activities of the cycle tracks Project will be implemented in separated sections (e.g. 300m between two active working sections) to avoid cumulative impacts due to concurrent works of this Project. The Contractor of this Project will liaise with the corresponding parties of the concurrent projects to schedule their works avoiding concurrent works in 300m of these other projects as far as possible. Given that there will be no complicated and large-scale civil works to be carried out under this Project, it will take relatively short time to complete corresponding construction works for a workfront. Scheduling of works to avoid cumulative construction noise impacts with other projects having less than 300m separation distance is considered feasible. Considering that careful scheduling of the construction works will have taken place, cumulative construction noise impacts are not expected to occur. The above arrangement shall be included in the work contracts to ensure proper implementation and execution by the future Contractor.
4.3.10. In view of the works areas being located in close proximity to the densely populated areas, the Contractor will be required to submit a Construction Noise Management Plan (CNMP) to EPD for approval prior to the commencement of construction of the Project. The CNMP shall be prepared with reference to Section 8 and Annex 21 of the EIAO-TM as well as EIA report and this EM&A manual during the design, tendering and implementation stage. The CNMP shall be checked independently and endorsed by the Project Engineer and CEDD to ensure that the proposals are practicable and could be effectively implemented on site, before submission of the CNMP to EPD. Details on the use of plants and equipment, their on-time percentages and the adoption of noise mitigation measures for the construction phase shall be clearly provided in the CNMP, demonstrating that the construction works to be undertaken will comply with all prevailing environmental standards and requirements. All noise mitigation measures implemented shall be properly maintained during construction of the Project.
4.3.11. With the adequate use of mitigation measures and construction works arrangement, adverse noise impacts are expected to be alleviated. All of the proposed mitigation measures discussed in Section 4.3 have been confirmed with the Project Engineer to be practicable and feasible for the proposed construction works within the intended construction programme. It will also be stipulated in the Work Contract requiring the Contractor to implement the above recommendation appropriately.
4.4.1. No specific monitoring during the operational phase of the Project is required.
5.1.1. The water quality impact assessment in the EIA Report identified that the key issue of water quality would be related to marine viaduct piling works during construction phase. Site runoff, general construction activities, sewage arising from the workforce, and spillage of chemicals are not expected to cause adverse impacts to the water environment, provided that proper mitigation measures are implemented.
5.1.2. In addition to the recommended mitigation measures, water quality monitoring should be undertaken of the Project to determine the environmental performance of the Project in terms of its water quality impacts. A monitoring programme is recommended for both baseline conditions and during the construction phase to detect any deterioration of water quality, as well as to ensure the performance of the proposed mitigation measures.
5.2.1. The water quality parameters, as presented in Table 5.1 shall be monitored to ensure the water quality and to detect any water quality deterioration situations and to take actions on time.
Table 5.1 Water Quality Parameters
|
Parameters |
Type of Analysis |
|
Dissolved Oxygen (DO) (mg/L and % saturation) |
In situ measurement |
|
Temperature (degree Celsius) |
In situ measurement |
|
pH value |
In situ measurement |
|
Turbidity (NTU) |
In situ measurement |
|
Salinity (ppt) |
In situ measurement |
|
Water depth (m) |
In situ measurement |
|
Suspended solids (SS) (mg/L) |
Laboratory analysis |
5.2.2. In addition to the water quality parameters specified above, relevant data shall also be measured, such as monitoring location / position, time, saturation, weather conditions and any special phenomena and works underway at the construction site.
5.3.1. Water quality monitoring equipment with the following specifications shall be supplied and maintained by the ET.
5.3.2.
The
instrument should be portable, weatherproof dissolved oxygen measuring with
cable, sensor, comprehensive operation manuals, and use a DC power source. It should be capable of measuring:
· DO level in the range of 0 – 20 mg /L and 0 – 200% saturation; and
· Temperature of 0 – 45 degree Celsius.
5.3.3.
It
should have a membrane electrode with automatic temperature compensation
connected with a cable. Sufficient
stocks of spare electrodes and cables should be available for replacement where
necessary. (e.g. YSI model 59 meter, YSI 5739 probe,
YSI 5795A submersible stirrer with reel and cable or an approved similar
instrument).
5.3.4.
pH
meter should be used to measure pH value of water samples in situ. It should be readable to 0.1 pH in a range of
0 to 14. Standard buffer solutions of at
least pH 7 to pH 10 shall be used for calibration of the instrument before and
after use.
5.3.5.
The
instrument should be a portable, weatherproof turbidity-measuring instrument
with a comprehensive operation manual.
The equipment should use a DC power source. It should have a photoelectric sensor capable
of measuring turbidity between 0-1000 NTU and be equipped with a cable (e.g. Hach model 2100P or an approved similar instrument).
5.3.6.
A
water sampler should comprise a transparent PVC cylinder, with a capacity of
not less than 2 litres, and can be effectively sealed with latex cups at both
ends. The sampler should have a positive
latching system to keep it open and prevent premature closure until released by
a messenger when the sampler is at the selected water depth (e.g.
Kahlsico Water Sampler or an approved similar
instrument).
5.3.7.
Water
samples for suspended solids measurement shall be collected in high density
polythene bottles, packed in ice (chilled to 4°C without being frozen), and
delivered to the laboratory as soon as possible after collection.
5.3.8.
A
portable, battery-operated echo sounder should be used for determining water
depth at each designated monitoring station.
This unit can either be handheld or affixed to the bottom of the work boat, if the same vessel is to be used throughout the
monitoring programme.
5.3.9. A portable salinometer capable of measuring salinity in the range of 0–40 ppt shall be provided for measuring salinity of the water at each monitoring location.
5.3.10. A hand-held or boat-fixed digital Global Positioning System (GPS) or other equivalent instrument of similar accuracy shall be provided and used during water monitoring to ensure the water sampling locations are correct during water quality monitoring work.
5.3.11.
A
transparent PVC or glass cylinder, which has a volume of not less than 2 litres
and can be sealed at both ends with cups, should be equipped with a positive
latching system. During the water
sampling, a messenger is released to trigger the closure of the water sampler
at suitable water depth.
5.3.12.
All
in-situ monitoring instruments should be checked, calibrated
and certified by a laboratory accredited under HOKLAS or another international
accreditation scheme before use, and subsequently re-calibrated at 3 monthly
intervals throughout all stages of the water quality monitoring. Responses of sensors and electrodes should be
checked with certified standard solutions before each use. Wet bulb calibration for a DO meter should be
carried out before measurement at each monitoring location.
5.3.13.
For
the on-site calibration of field equipment, the BS 127:1993, Guide to Field and
On-Site Test Methods for the Analysis of Water should be observed.
5.3.14.
Sufficient
stocks of spare parts should be maintained for replacements when necessary.
Backup monitoring equipment shall also be made available so that monitoring can
proceed uninterruptedly even when some equipment is under maintenance,
calibration, etc.
5.4.1. Analysis of suspended solids shall be carried out in a HOKLAS or another international accredited laboratory. Water samples of about 1,000 ml shall be collected at the monitoring stations for carrying out the laboratory SS determination. The detection limit shall be 1 mg/L or better. The SS determination shall follow APHA 17ed 2540D or equivalent methods subject to approval of EPD.
5.4.2.
If
a site laboratory is set up or a non-HOKLAS and non-international accredited
laboratory is hired for carrying out the laboratory analysis, the laboratory
equipment, analytical procedures, and quality control shall be approved by
EPD. The ET Leader shall provide the ER
with one copy of the relevant chapters of the “Standard Methods for the
Examination of Water and Wastewater” updated edition and any other relevant
document for his reference.
5.4.3.
For
the testing methods of other parameters as recommended by EIA or required by
EPD, detailed testing methods, pre-treatment procedures, instrument use,
Quality Assurance/Quality Control (QA/QC) details (such as blank, spike
recovery, number of duplicate samples per batch, etc.), detection limits and
accuracy shall be submitted to EPD for approval prior to the commencement of
monitoring programme. The QA/QC shall be
in accordance with the requirement of HOKLAS or international accredited
scheme. The QA/QC results shall be
reported. EPD may also request the laboratory to carry out analysis of known
standards provided by EPD for quality assurance. Additional duplicate samples may be required
by EPD for inter laboratory calibration. Remaining samples after analysis shall
be kept by the laboratory for 3 months in case repeat analysis is
required. If in-house or non-standard
methods are proposed, details of the method verification may also be required
to submit to EPD. In any circumstance,
the sample testing shall have comprehensive quality assurance and quality
control programmes. The laboratory shall
prepare to demonstrate the programmes to EPD or his representatives when
requested.
5.5.1.
Water quality monitoring will be carried out in
the proximity of the marine piling areas.
The proposed monitoring locations are provided in Table
5.2.
5.5.2.
The ET could review the monitoring locations
and the monitoring period in light of the actual
construction activities. However, the ET
Leader should report and seek approval from IEC and EPD for any alteration of
the monitoring stations.
Table 5.2 - Proposed Water Quality Monitoring Locations
|
Monitoring Location ID |
Description |
Easting |
Northing |
||||||
|
W1 |
Impact Monitoring Station |
816239 |
826294 |
||||||
|
W2 |
Impact Monitoring Station |
816088 |
826380 |
||||||
|
C1 |
Control Station 1 |
815929 |
826060 |
||||||
|
C2 |
Control Station 2 |
816348 |
825812 |
||||||
|
W2 W1 C1 C2 Piling Area for Viaduct Proposed viaduct section of alignment Proposed at-grade section of alignment |
|||||||||
5.6.2.
The baseline monitoring shall be conducted for
at least 4 weeks prior to the commencement of marine piling works with a frequency
of 3 days in a week, at mid-flood and mid-ebb tides. The interval between two sets of monitoring
shall not be less than 36 hours. EPD
shall also be notified immediately for any changes in schedule.
5.6.3.
There shall not be any construction activities in
the vicinity of the stations during the baseline monitoring. In the exceptional case when insufficient
baseline monitoring data or questionable results are obtained, the ET Leader
should seek approval from EPD for an appropriate set of data to be used as
baseline reference. Baseline monitoring
schedule shall be sent to EPD 2 weeks prior to the commencement of baseline
monitoring.
5.6.4.
Other relevant data shall also be recorded,
such as: monitoring location / position, time, water depth, tidal stages,
weather conditions and any special phenomena underway near the monitoring
station. Duplicate in-situ measurements and samples shall be collected for each
independent sampling event to ensure a robust statistically interpretable
database.
5.7.1.
During the construction at marine viaduct
sections, impact monitoring shall be carried out 3 days in a week, at mid-flood
and mid-ebb tides. If no exceedances are
recorded during the three-month’s period, the monitoring frequency can then be
reduced to once per week, with sampling /measurement at the designated
monitoring stations. The interval
between two sets of monitoring shall not be less than 36 hours except where
there are exceedances. However, the ET
Leader should report and seek agreement form IEC, ER
and approval then from EPD before changing the monitoring frequency.
5.7.2.
All monitoring information including date and
time, weather conditions, operator, identification and
description of monitoring locations, works, progress and construction activities,
method, analytical data and calculation etc., shall be recorded in the
monitoring data sheet. The water quality
monitoring schedule shall be sent to EPD on or before the first day of the
monitoring month, EPD shall be notified immediately of any changes in schedule
in written format.
5.8.1.
The Action and Limit levels for the water
quality monitoring are shown in Table 5.3. These
thresholds shall be applied to ensure that any water quality deterioration can
be readily detected.
Table 5.3 Action Level and Limit Level for Water Quality Monitoring
|
Parameter |
Action
Level |
Limit
Level |
|
DO in
mg/L |
<
5%-ile of baseline data |
<
4mg/L or < 1%-ile of baseline data |
|
SS in
mg/L |
>
95%-ile of baseline data or >120% of upstream
control station of the same day |
> 99%-ile of baseline data or 130% of upstream control station
of the same day |
|
Turbidity
in NTU |
>
95%-ile of baseline data or >120% of upstream
control station of the same day |
>
99%-ile of baseline data or > 130% of upstream
control station of the same day |
|
Note: 1.
For DO, non-compliance of
the water quality limits occurs when monitoring result is lower than the
limits. 2.
For SS and turbidity,
non-compliance of the water quality limits occurs when monitoring result is
higher than the limits 3.
3. All the figures given
in the table are used for reference only and the EPD may amend the figures
whenever it is considered as necessary |
||
5.9.1.
If the monitoring results at any designated
monitoring stations indicate that the water quality thresholds are exceeded,
appropriate actions in accordance with the Event and Action Plan in Table 5.4 shall be carried out.
Table 5.4 Event and Action Plan for Water Quality Monitoring
|
Event |
Action |
|||
|
ET Leader |
IEC |
ER |
Contractor |
|
|
Action Level being exceeded
by one sampling day |
1.
Repeat in-situ
measurement to confirm findings; 2.
Identify
source(s) of impact; 3.
Inform the IEC
and the Contractor; 4.
Check monitoring
data, all plant, equipment and the Contractor’s working methods; 5.
Discuss mitigation
measures with the IEC and the Contractor; 6.
Repeat
measurement on next day of exceedance. |
1. Discuss with the ET and the Contractor on the
mitigation measures; 2. Review proposals on mitigation measures submitted by
the Contractor and advise the ER accordingly; 3. Access the effectiveness of the implemented
mitigation measures. |
1.
Discuss with the
IEC on the proposed mitigation measures; 2.
Make agreement
on the mitigation measures to be implemented. |
1.
Inform the ER
and confirm notification of the non-compliance in writing; 2.
Rectify
unacceptable practice; 3.
Check all plant
and equipment; 4.
Consider changes
of working methods; 5.
Discuss with the
ET, ER and the IEC and propose mitigation measures to the IEC and the ER; 6.
Implement the
agreed mitigation measures. |
|
Action Level being exceeded
by more than one consecutive sampling days |
1. Repeat in-situ measurement to confirm findings; 2. Identify source(s) of impact; 3. Inform the IEC and the Contractor; 4. Check monitoring data, all plant, equipment and
Contractor’s working methods; 5. Discuss mitigation measures with the IEC and the Contractor; 6. Ensure mitigation measures are implemented; 7. Prepare to increase the monitoring frequency to daily; 8. Repeat measurement on next day of exceedance. |
1. Discuss with the ET and the Contractor on the
mitigation measures; 2. Review proposals on mitigation measures submitted by
the Contractor and advise the ER accordingly; 3. Access the effectiveness of the implemented
mitigation measures. |
1.
Discuss with IEC
on the proposed mitigation measures; 2.
Make agreement
on the mitigation measures to be implemented; 3.
Access the
effectiveness of the implemented mitigation measures. |
1.
Inform the ER
and confirm notification of the non-compliance in writing;
2.
Rectify
unacceptable practice; 3.
Check all plant
and equipment; 4.
Consider changes
of working methods; 5.
Discuss with the
ET, ER and the IEC and propose mitigation measures to the IEC and ER within 3
working days; 6.
Implement the
agreed mitigation measures. |
|
Limit Level being exceeded
by one consecutive sampling day |
1.
Repeat in-situ
measurement to confirm findings; 2.
Identify
source(s) of impact; 3.
Inform the IEC,
the Contractor and the DEP; 4.
Check monitoring
data, all plant, equipment and the Contractor’s working methods; 5.
Discuss
mitigation measures with the IEC, the ER and the Contractor; 6.
Ensure
mitigation measures are implemented; 7.
Increase the
monitoring frequency to daily until no exceedance of Limit Level. |
1. Discuss with the ET and the Contractor on the
mitigation measures; 2. Review proposals on mitigation measures submitted by
the Contractor and advise the ER accordingly; 3. Access the effectiveness of the implemented
mitigation measures. |
1.
Discuss with the
IEC, the ET and the Contractor on the proposed mitigation measures; 2.
Request the
Contractor to critically review the working methods; 3.
Make agreement
on the mitigation measures to be implemented; 4.
Access the
effectiveness of the implemented mitigation measures. |
1. Inform the Engineer and confirm notification of the
non-compliance in writing; 2. Rectify unacceptable practice; 3. Check all plant and equipment; 4. Consider changes of working methods; 5. Discuss with the ET, ER, the IEC and the ER and
propose mitigation measures to the IEC and the ER within 3 working days; 6. Implement the agreed mitigation measures. |
|
Limit Level being exceeded
by more than one consecutive sampling days |
1.
Repeat in-situ measurement
to confirm findings; 2.
Identify
source(s) of impact; 3.
Inform the IEC,
the Contractor and DEP; 4.
Check monitoring
data, all plant, equipment and Contractor’s working methods; 5.
Discuss
mitigation measures with the IEC, the ER and the Contractor; 6.
Ensure
mitigation measures are implemented; 7.
Increase the
monitoring frequency to daily until no exceedance of Limit Level for two
consecutive days. |
1. Discuss with ET and Contractor on the mitigation measures; 2. Review proposals on mitigation measures submitted by
the Contractor and advise the ER accordingly; 3. Access the effectiveness of the implemented
mitigation measures. |
1.
Discuss with the
IEC, the ET and the Contractor on the proposed mitigation measures; 2.
Request Contractor
to critically review the working methods; 3.
Make agreement
on the mitigation measures to be implemented; 4.
Access the
effectiveness of the implemented mitigation measures; 5.
Consider and
instruct, if necessary, the Contractor to slow down or to stop all or part of
the works until no exceedance of Limit Level. |
1. Inform the ER and confirm notification of the
non-compliance in writing; 2. Rectify unacceptable practice; 3. Check all plant and equipment; 4. Consider changes of working methods; 5. Discuss with the ET, the IEC and the ER and propose
mitigation measures to the IEC and the ER within 3 working days; 6. Implement the agreed mitigation measures; 7. As directed by the ER, slow down or stop all or part
of the construction activities. |
|
Notes: ET – Environmental Team IEC – Independent Environmental Checker ER – Engineer’s Representative |
||||
5.10.1.
Regular weekly site audit should be carried out
to ensure that the recommended mitigation measures are properly implemented
during the construction phase, especially the piling works at marine viaduct
sections. It can also provide an
effective control of any improper malpractices and therefore achieve continual
improvement in environmental performance on site. Site audit shall include site inspections and
compliance audits.
5.10.2.
Site inspection shall be carried out by the ET
and attentions shall be paid to the mitigation measures recommended for water
pollution control. In
the event that the recommended mitigation measures are not fully or
properly implemented, deficiencies shall be recorded and reported to the site
management and suitable actions shall be taken, which may include:
· Record the problems and investigate the cause;
· Issue action notes to the Contractor who is responsible for the works;
· Implement remedial and corrective actions immediately;
· Re-inspect the site condition upon completion of the remedial and corrective actions; and
· Record the event and discuss with the Contractor for preventive actions.
5.11.1. In order to alleviate potential water quality impacts from the construction of marine viaduct section, the following mitigation measures are recommended:
§ The rate of constructing a pile is 15 m/day and 2 piles will be constructed per day; the diameter of pile is 600mm; the working hour shall be 12 hour per day from 07:00 to 19:00.
§ Cage type silt curtains (i.e. size adjustable to suit environmental condition) must be deployed with an efficiency of 75% or higher for reduction of sediment release from the bored pile installation. The engineer will review using higher efficiency silt curtain in later stage.
§ Restrict beach users from entering the piling works area.
§ Maintain close liaison with LCSD on construction works schedule of marine viaduct during swimming season from March to October.
§ No more than 1/3 of the bathing area (for each beach) shall be closed and only one side of the beach (for each beach) shall be occupied during the construction.
§ Contingency plan setup with LCSD on alert beach users if there are unpredicted sediment suspension.
5.11.2. The practices outlined in ProPECC PN 1/94 Construction Site Drainage are recommended to be adopted to minimize potential water quality impacts from construction site runoff and other construction activities. Design of mitigation measures should be submitted by the Contractor to the Engineer for approval. The contractor should obtain valid discharge license under the Water Pollution Control Ordinance and the discharge should comply with the terms and conditions stipulated in the license.
5.11.3. The mitigation measures should cover, but not limited to the following Best Management Practices:
· No construction site discharge will be allowed within 100m of the boundaries of a gazetted beach in any direction, including rivers, streams and storm drains.
· Sand/silt removal facilities such as sand traps, silt traps and sediment basins should be provided to remove sand/silt particles from runoff to meet the requirements of the Technical Memorandum standards under the WPCO. The design of silt removal facilities should be based on the guidelines provided in ProPECC PN 1/94. All drainage facilities and erosion and sediment control structures should be inspected monthly and maintained to ensure proper and efficient operation at all times and particularly during rainstorms.
· Work programmes should be designed to minimize the size of work areas to minimize the soil exposure soil and reduce the potential for increased siltation and runoff;
· Boundaries of earthworks should be marked and surrounded by dykes or embankments for flood protection, as necessary.
· Silt removal facilities, channels and manholes should be maintained and cleaned regularly to ensure the proper function;
· Water pumped out from excavations should be discharged into silt removal facilities;
· Careful programming of the works to minimize soil excavation during the rainy season; If excavation of soil cannot be avoided during the wet season (April to September), exposed slope surfaces should be covered by a tarpaulin or other means. Other measures that need to be implemented before, during, and after rainstorms are summarized in ProPECC PN 1/94.
· Earthwork surfaces should be well compacted and the subsequent permanent work or surface protection should be carried out immediately after the final surfaces are formed;
· Open stockpiles of construction materials on site should be covered with tarpaulin or similar fabric during rainstorms.
· Wastewater generated from the washing down of mixer trucks and drum mixers and similar equipment should wherever practicable be recycled. The discharge of wastewater should be kept to a minimum;
· To prevent pollution from wastewater overflow, the pump sump of any water recycling system should be provided with an on-line standby pump of adequate capacity and with automatic alternating devices;
5.11.7. Good site practices should be adopted to clean the rubbish and litter on construction sites to avoid the rubbish, debris and litter from entering to nearby water bodies. It is recommended to clean the construction sites on a regular basis.
5.11.10. Under normal circumstances, surplus wastewater may be discharged into foul sewers after treatment in silt removal and pH adjustment facilities (to within the pH range of 6 to l0). Disposal of wastewater into storm drains will require more elaborate treatment. Surface run-off should be segregated from the concreting works area as much as possible, and diverted to the stormwater drainage system. Surface run-off contaminated by materials during concreting works should be adequately treated before disposal into stormwater drains.
5.11.13. The ProPECC PN 5/93 is applicable to the Project during the operational phase. Runoff from the cycle track will be conveyed into designated drainage systems. Silt trap/interceptor would be provided and maintained in the designated drainage systems to minimize water quality impact arising from surface runoff. The wastewater (i.e., sewage effluent from visitors) arising will be collected by existing sewerage pipeline. The administrative measures such as regular cleaning of cycle track surface, maintenance of silt trap, etc. would be in place.
6.1.1. Based on the waste management implication assessed in the EIA report, it has concluded that some construction wastes (including inert and non-inert wastes), chemical waste and general refuse will be generated from the construction activities. Construction and demolition (C&D) waste will be reused on site as far as practicable.
6.1.2. Through proper on-site handling and storage (covered containers), reuse (of inert construction wastes) and off-site disposal (via approved waste collectors to approved waste facilities and/or disposal grounds) the generation, handling and disposal of these wastes are not expected to give rise to any adverse environmental impacts. The ET shall check the Contractor’s implementation of waste management practices during the regular site environmental audits to ensure wastes are being managed properly.
6.1.3. Given the nature of use of the project, there is no EM&A requirement considered necessary during the operational phase.
6.2.1.
Regular site audit should be carried out to
ensure that the recommended mitigation measures are properly implemented during
the construction phase.
6.2.2.
Site inspection shall be carried out by the ET
on weekly basis and attentions shall be paid to the mitigation measures
recommended for waste management. In the event that the recommended mitigation measures are
not fully or properly implemented, deficiencies shall be recorded and reported
to the site management and suitable actions shall be taken.
6.3.1. The practice of avoiding and minimising waste generation and waste recycling should be adopted as far as practicable as below:
· An on-site environmental co-ordinator employed by the Contractor should be identified at the outset of the works. Prior to commencement of Project works, the co-ordinator shall prepare a WMP in accordance with the requirements set out in the ETWB TC(W) No. 19/2005, Waste Management on Construction Sites, for the Engineer Representative (ER) ‘s approval. The WMP shall include monthly and yearly Waste Flow Tables (WFT) that indicate the amounts of waste generated, recycled and disposed of (including final disposal site), and which should be regularly updated;
· The Contractor’s waste management practices and effectiveness shall also be audited by the ER on regular basis;
· The reuse/ recycling of all materials on site shall be investigated and exhausted prior to treatment/ disposal off-site. 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;
· Encourage collection of aluminium cans, paper and plastic bottles by providing separate labelled bins to enable these wastes to be segregated from other general refuse generated by the workforce;
· Plan and stock construction materials carefully to minimise amount of waste generated and avoid unnecessary generation of waste;
· Good site practices shall be adopted from the commencement of works to avoid the generation of waste, reduce cross contamination of waste and to promote waste minimisation;
· Toolbox talks should be provided to workers about the concepts of site cleanliness and appropriate waste management procedures, including waste reduction, reuse and recycling; and
· The Contractor shall comply with all relevant statutory requirements and guidelines and their updated versions that may be issued during the course of project construction.
· All C&D materials shall be sorted on-site into inert and non-inert C&D materials, and where the materials can be recycled or reused, they shall be further segregated. Inert material, or public fill will comprise stone, rock, masonry, brick, concrete and soil which is suitable for land reclamation and site formation whilst non-inert C&D materials include all other wastes generated from the construction process such as plastic packaging and vegetation (from site clearance);
· The Contractor shall be responsible for identifying what materials can be recycled/ reused, whether on-site or off-site. In the event of the latter, the Contractor shall make arrangements for the collection of the recyclable materials. Any remaining non-inert C&D materials shall be collected and disposed of at landfills whilst any inert C&D materials shall be re-used on site as far as possible. Alternatively, if no use of the inert material can be found on-site, the materials can be delivered to a Public Fill Reception Facilities after obtaining the appropriate licence;
· In order to monitor the disposal of C&D materials and solid wastes at public filling facilities and landfills, and control fly-tipping, a trip-ticket system shall be implemented by the Contractor, in accordance with the contract and the requirements of DB TC (Works) No. 6/2010 Trip Ticket System for Disposal of Construction and Demolition Materials;
· Prior to disposal off-site, non-inert C&D materials will have to be temporarily put in a suitably covered storage area where it will have to be regularly cleaned and maintained to avoid attracting vermin and pests. With proper on-site handling and storage as well as regular disposal of these wastes, no adverse impacts will be envisaged; and
· Dump trucks with mechanical cover shall be used to minimise windblown litter and dust during transportation of waste.
· Under the Waste Disposal (Chemical Waste) (General) Regulation, the Contractor shall register as a Chemical Waste Producer if chemical wastes such as spent lubricants and paints are generated on site. Only licensed chemical waste collectors shall be employed to collect chemical waste generated at site. The handling, storage, transportation and disposal of chemical wastes shall be conducted in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes and A Guide to the Chemical Waste Control Scheme both published by EPD.
· A sufficient number of covered bins shall be provided on site for the containment of general refuse to prevent visual impacts and nuisance to the sensitive surroundings. These bins shall be cleared daily and the collected waste disposed of to the refuse transfer stations or landfills. Further to the issue of DB TC (Works) No. 8/2010 Enhanced Specification for Site Cleanliness and Tidiness, the Contractor is required to maintain a clean and hygienic site throughout the project works.
6.3.3. Waste collection facilities (e.g. litter bins) will be included in the design of the supporting facilities, and at regular intervals along the route. The Government Department responsible for managing the facilities will be responsible for arranging for regular collection of litter from these facilities. Separate collection bins shall be provided for aluminium cans, plastic drinks bottles and paper wastes, which will facilitate recycling of these waste streams.
6.3.4. General refuse should be removed on a daily basis to minimize potential odour, pest and litter impacts. General refuse will have to be temporarily put in a suitably covered refuse collection point where it will have to be regularly cleaned and maintained to avoid attracting vermin and pests.
7.1.1. The land contamination assessment has been carried out which included a review of historical / current land uses, desktop review and the site inspection. Other relevant information was also collected from related government departments. No potential land contamination issue is identified within the Project area. In addition, potentially contaminating activities or land uses under the Project are not anticipated
7.2.1. Environmental monitoring and audit are not required for the Project on land contamination aspect.
8.1.1. The EIA has evaluated the ecological consequences of the Project and recommended measures to avoid and minimize the impacts arising from the Project.
8.1.2. Regular site audits will serve to inspect the implementation status of the mitigation measures and good practices recommended in the EIA report.
8.2.1. No site or habitat of conservation importance would be directly impacted. Direct impacts on the three plant species of conservation importance would be avoided.
8.2.2.
Most sections of alignments and facilities
confined to developed area. Only a few
sections would encroach mixed woodland, plantation woodland and
grassland/shrubland due to site constraints. Even though, the alignments would
only go through the fringe of woodland and plantation, and the actual loss of
trees are expected to be much smaller.
8.2.3.
During the construction phase, site runoff would
need to pass through sedimentation tanks to reduce the concentration of
SS. In accordance with the Practice Note
for Professional Persons on Construction Site Drainage, Environmental Protection
Department, 1994 (ProPECC PN 1/94), best management practices should
be implemented on site as far as practicable to control site runoff and
drainage at all work sites during construction, so that the treated runoff will
be discharged to public drainage system in compliance with the WPCO. Construction effluent, site run-off and
sewage should be properly collected and/or treated. Wastewater from a construction site should be
managed. Proper locations for discharge
outlets of wastewater treatment facilities well away from the natural
streams/rivers should be identified.
Effluent monitoring should be incorporated to make sure that the
discharged effluent from construction sites meets the effluent discharge guidelines. The best practices are detailed in the water
quality chapter.
8.2.4. The temporary and permanent loss of fringe of woodland habitat, if any, does not require specific mitigations under EcoIA, as their ecological values are ranked as Low or Low to moderate. The loss of trees will be mitigated by the compensatory planting provided in landscape impact assessment.
8.2.5. Besides the adoption of the water quality measures, including but not limited to the deployment of cage type silt curtains for reduction of sediment release to marine habitat from the bored pile installation as stated in the water quality chapter, no other specific mitigation measures for marine ecology are required.
8.2.6. No specific mitigation measures would be required for the operational phase of present Project.
8.2.7. There will be loss of small area (about 19 m2) of seabed. Although there will be no direct encroachment of coral or gorgonian in the proposed viaduct, a low coverage (<5%) of common hard coral and common gorgonians was found in the vicinity of the proposed viaduct. As a precautionary approach, it is recommended that a coral survey should be conducted within the piling footprint prior to the commencement of piling works, to verify that there are no significant coral colonies within the footprint and confirm the corals are not feasible for translocation. Should coral colonies of significant sizes and feasible for translocation be identified, coral translocation should be conducted. A Coral Translocation Plan should be submitted to AFCD for approval before the coral translocation. The plan should cover the pre-translocation survey findings (i.e. findings from the verification survey, including the number, locations, species, sizes, conditions and feasibility for translocations of coral colonies), identifications of coral recipient site, the translocation methodology and coral post-translocation monitoring and reporting requirements. The verification survey and all translocation activities should be carried out by experienced marine ecologists as agreed by AFCD.
8.2.8.
As there will be a vertical above-seabed
substructure to support the marine viaduct, the subtidal portion of many
man-made structures could provide hard substrates for colonization of corals or
other epibenthos. The submerged structures in the future marine viaduct could
also provide hard surface for colonization of marine sessile epibenthos. It is also
known that by suitable design, the colonization of epibenthos would be faster
and/or of higher abundance, and the ecological functions of epibenthic
communities on the subtidal portions of these structures could be further
enhanced.
8.2.9. One of the approaches is to provide uneven surface or selected patterns on the future substructure (either incorporating on the structures or installing additional panels/ tiles with such features). The enhanced surface could provide microhabitats for various marine organisms to colonise and grow, and develop into communities to provide feeding and hiding habitats for juveniles of marine fauna, and thereby effectively enhance biodiversity and ecosystem functions of the new man-made structures. A study would be conducted prior to commencement of the marine works for the marine viaduct section to explore if feasible and practical ecological enhancement measures could be adopted as trial.
9.1.1. The EIA has evaluated the implications on fisheries and recommended water quality mitigation measures to avoid and minimise the impact arising from the Project.
9.2.1. Site inspections during construction phase should be carried out to monitor any malpractice leading to deterioration of water quality of the surroundings.
9.3.1. No fisheries specific mitigation measures and monitoring would be required, and mitigation measures recommended in the water quality impacts will minimise any adverse impacts on fisheries.
9.3.2. Precautionary practices to prevent fisheries impacts due to the deterioration of marine water quality should be implemented. Good site practices as listed in the water quality section should be maintained to mitigate the surface runoff generate from the construction works.
9.3.3.
No specific
mitigation measures would be required for the operational phase of the Project.
10.1.1. The EIA has recommended landscape and visual mitigation measures to be undertaken during construction and operation phases of the Project. The implementation of landscape mitigation measures should be checked to ensure that they are fully realised and that potential conflicts between the proposed landscape measures and any other project works and operational requirements are resolved at the earliest possible date and without compromise to the intention of the mitigation measures.
10.2.1. The EM&A comprises monitoring and auditing of proper implementation of mitigation measures and site practices to reduce landscape and visual impacts. Site inspections should be undertaken by the ET at least twice a month during the construction period.
10.3.1. Mitigation measures recommended in the EIA for construction and operational phase of the Project are provided Table 10.1 and Table 10.2, respectively. Detailed requirements of the mitigation measures are provided in the Implementation Schedule in Section 14.
Table 10.1 Proposed Construction Phase Mitigation Measures
|
Mitigation Code |
Mitigation Measure |
|
CP1 |
Preservation of Existing Trees - Trees / woodland within the Works Area which are unaffected by the
works shall be protected and preserved during the detailed design stage and
construction phase. The tree preservation proposals shall be coordinated with
the layout and design of the engineering and architectural works at the
detailed design stage for further retention of individual trees. The
preservation of existing tree shall provide instant greening and screening
effect for proposed works. Tree protection works to be undertaken in
accordance with DEVB TC(W) 4/2020 on “Tree Preservation” and tree risk
assessment in accordance with “Guidelines for Tree Risk Assessment and
Management Arrangement” by DEVB. |
|
CP2 |
Preservation of Existing Topsoil - Topsoil disturbed
during the construction phase will be tested using a standard soil testing
methodology and where it is found to be worthy of retention stored for
re-use. The soil will be stockpiled to a maximum height of 2 m and will be
either temporarily vegetated with hydro-seeded grass during construction or
covered with a waterproof covering to prevent erosion. The stockpile should
be turned over on a regular basis to avoid acidification and the degradation
of the organic material, and reused after
completion. Alternatively, if this is not practicable, it should be
considered for use elsewhere, including other projects. This is also considered a general measure for
good site practice. |
|
CP3 |
Works Area and Temporary Works Areas - The landscape of these
works areas should be restored to their original
status or redesigned as new amenity areas following the completion of the
construction phase. Construction site controls shall be enforced, where
possible, to ensure that the landscape and visual impacts arising from the
construction phase activities are minimized including the storage of
materials, the location and appearance of site accommodation and the careful
design of site lighting to prevent light spillage. Screen hoarding may not be
practicable for several linear sections of this project due to the close
viewing distances involved and spatial constraints of the works areas. |
|
CP4 |
Mitigation Planting - Replanting of existing / disturbed vegetation shall be undertaken as
soon as technically feasible during the construction phase. The priority
shall be areas at the periphery of the site to ensure that proposed planting
fulfils its role in mitigating the predicted impacts including screening
views of the Project as early as possible during the operational phase. |
|
CP5 |
Transplantation of Existing Trees - Existing 147 trees
recommended to be transplanted under the current proposal, final recipient
site should be, as far as space allows, adjacent to their current locations
alongside of the cycle track or within supporting facilities to retain their
contribution to the local landscape context. The implementation programme of
the proposed works should reserve enough time for advance tree transplanting
preparation works to enhance the survival of these transplant trees.
Transplanting proposals will subject to the findings of the detailed tree
survey and felling application undertaken at the detailed design stage and
upon to the approval by relevant departments. |
|
CP6 |
Coordination with Concurrent Projects- Coordinated
implementation program with concurrent projects such Castle Peak Road
Widening in order to minimize cumulative landscape
impact during the construction Phase. |
Table 10.2 Proposed Operational Phase Mitigation Measures
|
Mitigation Code |
Mitigation Measure |
|
OP1 |
Design
of Cycle Track and Associated Facilities - the cycle track will incorporate design
features as part of design mitigation measures including: 1. Integrated design approach
– the alignment of cycle track should integrate, as far as technically
feasible, with existing built structures such as existing road, footpath and
coastal walkways, shade structures and other open space facilities as part of
design mitigation measures to reduce the potential cumulative impact of the
proposed works. The location and orientation of the associated facilities
should be away from landscape and visually sensitive areas such open coastal
waterfronts. 2. Building and infrastructure
massing – the proposed use of responsive design with cycle bridges and
related structures to be low profile and as light weight as is structurally
feasible in order to reduce the intrusion of built
scale into the waterfront and roadside public realm. 3. Treatment of built
structures - the architectural and engineering design should seek to reduce
the apparent visual mass of the built facilities and infrastructure such as
cycle bridges through the use of natural materials
such as wooden frame, vertical greening or other sustainable materials such
as recycle plastic. 4. Responsive building
finishes - In terms of the building finishes natural tones should be
considered for the colour palette with non-reflective finishes recommended on
the outward facing building facades to reduce glare effect. 5. Responsive lighting design
– Aesthetic design of architectural and track lighting with following glare
design measures: ·
Directional and full cut off lighting is recommended particularly for
recreation and roadside areas to minimize light spillage to the surrounding
areas. ·
Minimize geographical spread of lighting, only applied for safety at
the key access points and staircases; ·
Limited lighting intensity to meet the minimum safety and operation
requirement; and ·
High-pressure sodium road lighting is recommended for more stringent
light control reducing spillage and thus visual impacts. |
|
OP2 |
Roadside
and Amenity Planting – This planting will utilise large ornamental trees,
either with high canopy and thin foliage to allow visual access in the views
from the adjacent neighbourhoods to the further roadside or leisure landscape
or dense foliage at selected locations to provide shade environment for
cyclist and to give accent to the existing roadside planting. Native species will be utilised on sloping
or wooded areas thereby enriching the ecological connectivity between
existing woodland habitats with the advantage of creating a more coherent
landscape framework. Large Feature Trees will be utilised along the cycle
track, where space allows, with the design intent to create shaded
environment and instant greening effect at key sections of the route. Smaller
ornamental and preferably native species will also be incorporated within the
planting proposal to add to create visual interest for the public and to help
create a comprehensive planting framework that could enhance both ecological
and landscape value of the surroundings. |
|
OP3 |
Compensatory Planting Proposals – The Project Proponent would implement the compensatory planting as proposed in the Tree Preservation and Removal Proposal (TPRP) to be submitted to relevant government departments for approval in accordance with DEVB TC(W) No. 4/2020 to compensate for the trees to be felled. As far as practicable, implementation of compensatory tree planting should be of a ratio not less than 1:1 in terms of number of trees removed including dead trees, but excluding trees of undesirable species. Based on the cycle track layout, approximately 207 nos. of trees within areas of the existing public realm are proposed to be compensated. However, there would be limited space available for new tree planting in the vicinity of the proposed cycle track. Given these constraints, space within the Project is available for the planting of approximately 50 nos. new trees on a sustainable basis. As for the remaining 157 nos. new trees to be planted offsite, the Project Proponent will actively liaise with all the relevant departments throughout the TPRP process to confirm their planting locations. |
|
OP4 |
Treatment
of Retaining Wall and Slopes- In accordance with GEO Publication No. 1/2011, these engineering
structures will be aesthetically enhanced through the use
of soft landscape works including tree and shrub planting to give
man-made slopes a more natural appearance blending into the local rural
landscape. Whip sized planting is
preferred on the face of soil cut slopes and at the crest and toe of the
slope, and within berm planters these smaller, younger plants adapt to their
new growing conditions more
quickly than larger
sized stock and establish a naturalistic effect
more rapidly. |
|
OP5 |
Protection and reinstatement
of rocky shore at headlands – The proposed cycle bridges will pass over an
area of rocky shore, with various existing rock outcrops and features visible
at low tide. The design shall aim to avoid impacting these rocky features and
where unavoidably impacted shall remove elements for later reinstatement on
completion of the works in order to help integrate
the new structures with the natural shoreline context. |
|
OP6 |
Design of an Elegant Bridge
Structure and Crossings – The proposed cycle is potentially a visually
prominent structure. As such it is important that careful attention is given
to the design of the structure, the associated profile, arrangement of piers
and the compatibility with its landscape context. The design of railing and parapets with sculptural
and decorative forms shall be employed to lift the aesthetics of these
structures beyond a purely functional / utilitarian appearance. |
11.1.1. The EIA concluded that no adverse impacts on cultural heritage resources would be expected from the construction or operational phase of the Project. No specific monitoring is required during the construction phase. However, mitigation measures should be implemented to minimize potential impacts during the construction phase.
11.2.1. There are no potential direct and indirect impacts arising from the construction of the cycle path on Sites of Archaeological Interest and Graded Historic Buildings. Some potential works impacts have been identified on eight other built heritage items during the construction phase and mitigation may include a range of measures. The descriptions below will provide the detailed requirements for each of the mitigation actions recommended. The descriptions are abbreviated in Table 11.1 by the letters shown in brackets.
11.2.2. The Marine Archaeological Investigation did not locate any underwater cultural heritage resources so there is no need for any mitigation measures.
11.2.3. As a precautionary measure, AMO should be informed immediately in case of discovery of antiquities or supposed antiquities in the course of works, so that appropriate mitigation measures, if needed, can be timely formulated and implemented in agreement with AMO. If there are any buildings / structures both at grade level and underground which were built on or before 1969, the project proponent is required to alert AMO in an early stage or once identified.
11.2.7.
Any proposed works in close proximity to buildings or structures used by the public
have the potential to create an unsafe environment for members of the public.
11.2.8. The contractor should ensure that safe public access if possible, through provision of clearly marked paths separated from the construction works areas is provided for any such affected cultural heritage structure.
Table 11.1 Proposed Mitigation during construction phase for other built heritage items identified as having potential impacts
|
Reference |
Description |
Proposed works |
Distance to proposed works |
Mitigation recommendation |
|
Other built heritage items without grading |
||||
|
HB-03 |
Tai Shan Shek Kam Dong Tablet, Cafeteria Old Beach |
Cycle track and footpath on viaduct |
10m |
BZ, SPA |
|
at-grade |
7m |
|||
|
HB-07 |
Tsing Shan Sam Chau Ma Miu, Sam Shing Hui |
At-grade cycle track and footpath |
2.5m |
BZ, SPA |
|
HB-08 |
Ki Lun Rock, Ki Lun Kong Public Park, Sam Shing Hui |
At-grade cycle track and footpath |
7m |
BZ |
|
HB-09 |
Tsing Shan Sam Shing Hui Rural Committee Building,
Sam Shing Hui |
At-grade cycle track |
11m |
CS, BZ, SPA |
|
|
||||
|
HB-11 |
Guard House, Former Perowne
Barracks, No. 2 Castle Peak Road – Castle Peak Bay, Tuen
Mun, New Territories |
At-grade cycle track |
4.3m |
CS, BZ, SPA |
|
HB-12 |
School Building, Former Perowne
Barracks, No. 2 Castle Peak Road – Castle Peak Bay, Tuen
Mun, New Territories |
At-grade cycle track |
5.8m |
CS, BZ, SPA |
|
|
||||
|
Note: Buffer Zones (BZ), Safe Public Access (SPA), Vibration Monitoring (VM), Condition Survey (CS) |
||||
11.2.9.
Mitigation measures for cultural heritage
will not be required during operational phases.
12.1.1.
Site inspection provides a direct means to
trigger and enforce the specified environmental protection and pollution
control measures necessary to comply with the contract specifications. They shall be undertaken regularly and
routinely by the ET to inspect the activities at the works site in order to ensure that appropriate environmental protection
and pollution control mitigation measures are properly implemented by the
Contractor in accordance with the EM&A recommendations. With well-defined pollution control and
mitigation specifications and a well-established site inspection, deficiency
and action reporting system, site inspection is one of the most effective tools
to enforce the environmental protection requirements on the site.
12.1.2. The ET Leader is responsible for formulation of the environmental site inspection, deficiency and action reporting system, and for carrying out the site inspections under the EM&A works. He/she shall prepare and submit a proposal on the site inspection, deficiency and action reporting procedures within 21 days of the construction contract commencement to the Contractor for agreement and to the ER and IEC for approval. The ET’s proposal for rectification would be made known to the IEC.
12.1.3. The ET shall conduct a site inspection at least once a week during the construction period of the Project. The areas of inspection shall include, but shall not be limited to, the environmental situation, and pollution control and mitigation measures within the site. It should also review the environmental situation outside the site area that is likely to be affected, directly or indirectly, by the site activities. The ET Leader shall make reference to the following information in conducting the inspection:
· The EIA recommendations and requirements in this Manual on environmental protection and pollution control mitigation measures;
· On-going results of the EM&A programme;
· Works progress and programme;
· Individual works methodology proposals (which shall include proposals on associated pollution control measures);
· The contract specifications on environmental protection and pollution prevention;
· The relevant environmental protection and pollution control laws, ProPECC Notes; and
· Previous site inspection results undertaken by the ET.
12.1.4. The Contractor shall update the ET with all relevant information of the contract for him/ her to carry out the site inspections. The inspection results and its associated recommendations on improvements to the environmental protection and pollution control works shall be submitted to the IEC and the Contractor in a site inspection proforma within 24 hours, for reference and for taking immediate action.
12.1.5. The Contractor shall follow the procedures and time frame as stipulated in the environmental site inspection, deficiency and action reporting system formulated by the ET to report on any remedial measures subsequent to the site inspections.
12.1.6. The ET shall conduct ad-hoc site inspections if significant environmental problems are identified. The IEC shall also conduct independent site audits. Inspections may also be required subsequent to receipt of any environmental complaints, or as part of the investigation work, as specified in the Event and Action Plan for environmental monitoring and audit programme.
12.2.1. The ET Leader shall review the progress and programme of the works to check that relevant environmental laws have not been violated, and that any foreseeable potential for violating the laws can be prevented.
12.2.2. The Contractor shall regularly copy relevant documents to the ET so that the checking work can be carried out. The documents shall at least include updated Work Progress Reports, the updated Works Programme, application letters for different license/permits under the environmental protection laws, and all valid licence(s)/permit(s). The site diary shall also be available for the ET’s inspection upon his request.
12.2.3. To ensure the works comply with statutory requirements, all method statements of works submitted by the Contractor to the ER for approval should be copied to the ET Leader for vetting to ensure sufficient environmental protection and pollution control measures have been included. Any proposed changes to the mitigation measures shall be certified by the ET Leader and verified by the IEC as conforming to the relevant information and recommendations contained in the EIA Report.
12.2.4. After reviewing the document, the ET Leader shall advise the ER and the Contractor of any non-compliance with the contractual and legislative requirements on environmental protection and pollution control for them to take follow-up actions. If the ET Leader’s review concludes that the current status on licence/ permit application and any environmental protection and pollution control preparation works may not cope with the works programme or may result in potential violation of environmental protection and pollution control requirements by the works in due course, he/she shall also advise the Contractor and the ER accordingly. The review shall be copied to IEC for any follow-up action.
12.2.5. Upon receipt of the advice, the Contractor shall undertake immediate action to remedy the situation. The ER shall check that the Contractor has taken appropriate action in order that the environmental protection and pollution control requirements are fulfilled.
12.3.1. Complaints reviewed on environmental issues shall be referred to the ET Leader for carrying out complaint investigation procedures. Upon receipt of complaints the ET shall undertake the tasks outlined below.
· Log complaint and date of receipt onto the complaint database and inform the IEC immediately;
· Investigate the complaint to determine its validity, and to assess whether the source of the problem is due to works activities;
· If a complaint is valid and due to works, identify mitigation measures in consultations with the IEC;
· If mitigation measures are required, advise the Contractor accordingly;
· Review the Contractor’s implementation of the identified mitigation measures, and the concurrent situation;
· If the complaint is transferred from EPD, submit interim report to EPD on status of the complaint investigation and follow-up action within the time frame assigned by EPD;
· Undertake additional monitoring and audit to verify the complaint if necessary, and ensure that any valid reason for complaint does not recur through proposed amendments to work methods, procedures, machines and/or equipment, etc;
· Report the investigation results and the subsequent actions to the source of complaint. (If the source of complaint is identified through EPD, the results should be reported within the time frame assigned by EPD); and
· Log a record on the complaint, investigation, the subsequent actions and the results in the monthly EM&A reports.
12.3.2. The ET Leader shall immediately notify the ER, IEC, Contractor and EPD of any complaints received and keep him well informed of the actions being taken to settle these complaints.
12.3.3. During the complaint investigation work, the Contractor and ER shall co-operate with the ET Leader in providing all the necessary information and assistance for completion of the investigation. If mitigation measures are identified to be required in the investigation in consultation with the IEC, the Contractor shall promptly carry out the measures. The ER shall ensure that the Contractor has implemented the mitigation measures.
12.4.1. All documentation is required to be filed in a traceable and systematically manner and ready for inspection upon request. All EM&A results and findings shall be documented in the EM&A report prepared by the ET and endorsed by IEC prior to circulation to the Contractor, ER and EPD.
13.1.1. The following reporting requirements are based upon a paper-documented approach. However, the same information shall be provided in an electronic medium upon agreeing the format with the ER, IEC and EPD. All the monitoring data shall also be submitted in an agreed electronic format in accordance with the requirements under Annex 21 of the EIAO TM. This would enable a transition from a paper/historic and reactive approach to an electronic/real time proactive approach.
13.2.1. The baseline monitoring report shall include at least the following:
1. Up to a
half-page executive summary;
2. Brief
project background information;
3. Drawings
showing locations of the baseline monitoring stations;
4. Monitoring
results (in both hard and soft copies) together with the following information:
(i) Monitoring
methodology;
(ii) Name of
laboratory and types of equipment used and calibration details;
(iii) Parameters
monitored;
(iv) Monitoring
locations (and depth);
(v) Monitoring
date, time, frequency and duration; and
(vi) quality assurance
(QA) / quality control (QC) results and detection limits.
5. Details
of influencing factors, including:
(i) Major
activities, if any, being carried out on the site during the period;
(ii) Weather
conditions during the period; and
(iii) Other
factors which might affect the results.
6. Determination
of the Action/ Limit levels for each monitoring parameter and statistical
analysis of the baseline data, the analysis will conclude if there is any
significant difference between control and impact stations for the parameters monitored;
7. Revisions
for inclusion in the EM&A Manual; and
8. Comments
and conclusions.
13.3.1. The results and findings of all EM&A work required in this Manual shall be presented in a monthly EM&A report prepared and certified by the ET Leader. The monthly EM&A reports shall be verified by IEC and then submitted to EPD.
13.3.2. Each EM&A monthly report shall be submitted within 10 working days of the end of each reporting month. The first report is due in the month after the construction commences. The monthly EM&A report shall be submitted to the ER, the Contractor, the IEC and EPD. Before submission of the first EM&A report, the ET Leader shall liaise with the parties on the exact number of copies needed and format of the monthly reports for both hard and soft copy.
13.3.3. The ET Leader shall review the number and location of monitoring stations and parameters to be monitored every six months or on a needed basis in order to cater for the changes in surrounding environment and nature of works in progress.
13.3.4. The first monthly EM&A report shall include at least the following, where applicable:
1.
Executive
Summary (1-2 pages);
-
Breaches of Action/ Limit levels;
-
Complaint Log;
-
Notifications of any summons and successful prosecutions;
-
Reporting Changes; and
-
Future key issues.
2.
Basic
Project Information
-
Project organisation including key personnel contact names and telephone numbers;
-
Programme with fine tuning of activities showing the inter-relationship
with environmental protection/mitigation measures for the month;
-
Management structure; and
-
Work undertaken during the month.
3.
Environmental
Status
-
Works undertaken during the month with illustrations (such as location of
works); and
-
Drawings showing the project area, any environmental sensitive receivers
and the locations of the monitoring and control stations.
4.
Summary
of EM&A requirements including:
-
All monitoring parameters;
-
Environmental quality performance limits (Action/ Limit levels);
-
Event/Action Plans;
-
Environmental mitigation measures, as recommended in the project EIA study
final report;
-
Environmental requirements in contract documents;
5.
Implementation
Status
-
Advice on the implementation status of environmental protection and
pollution control/ mitigation measures as recommended in the project EIA
report, summarised in the updated implementation schedule.
6.
Monitoring
Results (in both hard and soft copies) together with the following information
-
Monitoring methodology;
-
Name of laboratory and types of equipment used and calibration details;
-
Parameters monitored;
-
Monitoring locations;
-
Monitoring date, time, frequency, and duration;
-
Weather conditions during the period;
-
Graphical plots of the monitored parameters in the month annotated
against:
i. Major activities being
carried out on site during the period;
ii. Weather conditions
that may affect the results; and
iii. Any other factors
which might affect the monitoring results;
-
QA/QC results and detection limits;
-
Waste generation and disposal records;
-
All monitoring results should be tabulated with exceedances highlighted
for ease of reference; and
-
Compare/contrast and assess the EM&A data with the EIA predictions and
provide discussion for any discrepancies.
7.
Report
on Non-compliance, Complaints, Notifications of Summons and Successful
Prosecutions
-
Compliance status with the EP under the EIAO and any EP submissions;
-
Record of all non-compliance (exceedances) of the environmental quality
performance limits (Action/ Limit levels);
-
Record of all complaints received (written or verbal) for each media,
including locations and nature of complaints investigation, liaison and
consultation undertaken, actions and follow-up procedures taken, results and summary;
-
Record of all notifications of summons and successful prosecutions for
breaches of the current environmental protection/ pollution control
legislation, including locations and nature of the breaches, investigation,
follow-up actions taken, result and summary;
-
Review of the reasons for and the implications of non-compliance,
complaints, summons and prosecutions including review
of pollution sources and working procedures; and
-
Description of the actions taken in the event of non-compliance and
deficiency reporting and any follow-up procedures related to earlier
non-compliance.
8.
Comments,
Recommendations and Conclusions
-
An account of the future key issues reviewed from the works programme and
work method statements;
-
Advice on the solid and liquid waste management status; and
-
Submission of implementation status proforma, proactive environmental
protection proforma, regulatory compliance proforma, site inspection proforma,
data recovery schedule and complaint log summarising the EM&A of the
period.
13.3.5. The subsequent monthly EM&A reports shall include the following:
1.
Executive
Summary (1-2 pages)
-
Breaches of Action/ Limit levels;
-
Complaint log;
-
Notifications of any summons and successful prosecutions;
-
Reporting changes;
-
Future key issues.
2.
Environmental
Status
-
Programme with fine tuning of activities showing the inter-relationship
with environmental protection/mitigation measures for the month;
-
Work undertaken during the month with illustrations including key
personnel contact names and telephone numbers; and
-
Drawings showing the project area, any environmental sensitive receivers
and the locations of the monitoring and control stations.
3.
Monitoring
Results (in both hard and electronic copies) together with the following
information.
-
Monitoring methodology;
-
Types of equipment used and calibration details;
-
Parameters monitored;
-
Monitoring locations;
-
Monitoring date, time, frequency, and duration;
-
Weather conditions during the period;
-
Graphical plots of the monitored parameters in the month annotated
against:
i. Major activities being
carried out on site during the period;
ii. Weather conditions
that may affect the results; and
iii. Any other factors
which might affect the monitoring results;
-
QA/QC results and detection limits;
-
Waste generation and disposal records;
-
All monitoring results should be tabulated with exceedances highlighted
for ease of reference; and
-
Compare/contrast and assess the EM&A data with the EIA predictions and
provide discussion for any discrepancies.
4.
Implementation
Status
-
Advice on the implementation status of environmental protection and
pollution control/mitigation measures as recommended in the Project EIA report,
summarised in the updated implementation schedule.
5.
Report
on Non-compliance, Complaints, Notifications of Summons and Successful Prosecutions
-
Record of all non-compliance (exceedances) of the environmental quality
performance limits (Action/ Limit levels);
-
Record of all complaints received (written or verbal) for each media,
including locations and nature of complaints investigation, liaison and
consultation undertaken, actions and follow-up procedures taken, results and summary;
-
Record of all notifications of summons and successful prosecutions for
breaches of the current environmental protection/pollution control legislation,
including locations and nature of the breaches, investigation, follow-up
actions taken, result and summary;
-
Review of the reasons for and the implications of non-compliance,
complaints, summons and prosecutions including review
of pollution sources and working procedures; and
-
A description of the actions taken in the event of non-compliance and
deficiency reporting and any follow-up procedures related to earlier
non-compliance.
6.
Comments,
Recommendations and Conclusions
-
An account of the future key issues reviewed from the works programme and
work method statements;
-
Advice on the solid and liquid waste management status; and
-
Submission of implementation status proforma, proactive environmental
protection proforma, regulatory compliance proforma, site inspection proforma,
data recovery schedule and complaint log summarising the EM&A of the
period.
7.
Appendix
-
Action/ Limit Levels;
-
Graphical plots of trends of monitored parameters at key stations over the
past four reporting periods for representative monitoring stations annotated
against the following:
i. Major activities being
carried out on Site during the periods;
ii. Weather conditions
during the period; and
iii. Any other factors
which might affect the monitoring results
-
Monitoring schedule for the present and next reporting period;
-
Cumulative statistics on complaints, notifications of summons and
successful prosecutions; and
-
Outstanding issues and deficiencies.
13.4.1. The quarterly EM&A summary report, which should generally be around 5 pages (including about 3 of text and tables and 2 of figures), should contain at least the following listed information. Apart from these, the first quarterly summary report should also confirm that the monitoring work is proving effective and that it is generating data with the necessary statistical power to categorically identify or confirm the absence of impact attributable to the works.
1.
Up to
half a page executive summary;
2.
Basic project
information including a synopsis of the project organisation, programme,
contacts of key management, and a synopsis of work undertaken during the quarter;
3.
A brief summary of EM&A requirements including:
-
Monitoring parameters;
-
Environmental quality performance limits (Action/ Limit levels); and
-
Environmental mitigation measures, as recommended in the project EIA report;
4.
Advice
on the implementation status of environmental protection and pollution
control/mitigation measures, as recommended in the project EIA study report,
summarised in the updated implementation schedule, including waste generation
and disposal records;
5.
Drawings
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations;
6.
Graphical
plots of the trends of monitored parameters over the past 4 months (the last
month of the previous quarter and the present quarter) for representative
monitoring stations annotated against;
-
The major activities being carried out on site during the period;
-
Weather conditions during the period; and
-
Any other factors that might affect the monitoring results.
7.
Advice
on the solid and liquid waste management status;
8.
A
summary of non-compliance (exceedances) of the environmental quality
performance limits (Action/ Limit levels);
9.
A brief
review of the reasons for and the implications of non-compliance including
review of pollution sources and working procedures;
10.
A
summary description of the action taken in the event of non-compliance and any
follow-up procedures related to earlier non-compliance;
11.
A
summary record of all complaints received (written or verbal) for each media,
liaison and consultation undertaken, actions and follow-up procedures taken;
12.
A
summary record of all notifications of summons and successful prosecutions for
breaches of the current environmental protection/pollution control legislation,
locations and nature of the breaches, investigation, follow-up actions taken
and results;
13.
Comments
(e.g. effectiveness and efficiency of the mitigation measures),
recommendations (e.g. any improvement in the EM&A programme) and
conclusions for the quarter; and
14.
Proponent’s
contacts and any hotline telephone number for the public to make enquiries.
13.5.1. The final EM&A summary report shall include the following:
1.
An
executive summary;
2.
Basic
project information including a synopsis of the project organisation, programme,
contacts of key management, and a synopsis of work undertaken during the entire
construction phase of the works;
3.
A brief summary of EM&A requirements including:
-
Monitoring parameters;
-
Environmental quality performance limits (Action/ Limit levels); and
-
Environmental mitigation measures, as recommended in the project EIA study
final report.
4.
Advice
on the implementation status of environmental protection and pollution control/
mitigation measures, as recommended in the project EIA study report, summarised
in the updated implementation status proformas, including waste generation and
disposal records;
5.
Drawings
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations;
6.
Compliance
status with the EP under the EIAO and any EP submissions;
7.
Graphical
plots of the trends of monitored parameters over the period of construction (of
the project) for representative monitoring stations annotated against;
-
The major activities being carried out on site during the period;
-
Weather conditions during the period;
-
Any other factors which might affect the monitoring results; and
-
The return of ambient environmental conditions.
8.
Compare/contrast
and assess the EM&A data with the EIA predictions and annotate with explanation
for any discrepancies;
9.
Provide
clear-cut decisions on the environmental acceptability of the project with
reference to the specific impact hypothesis;
10.
Advice
on the solid and liquid waste management status;
11.
A
summary of non-compliance (exceedances) of the environmental quality
performance limits (Action/ Limit levels);
12.
A brief
review of the reasons for and the implications of non-compliance including
review of pollution sources and working procedures;
13.
A
summary description of the actions taken in the event of non-compliance and any
follow-up procedures related to earlier non-compliance;
14.
A
summary record of all complaints received (written or verbal) for each media,
liaison and consultation undertaken, actions and follow-up procedures taken;
15.
Review
the monitoring methodology adopted and with the benefit of hindsight, comment
on its effectiveness (including cost effectiveness);
16.
A
summary record of all notification of summons and successful prosecutions for
breaches of the current environmental protection/pollution control legislation,
locations and nature of the breaches, investigation, follow-up actions taken
and results;
17.
Review
the practicality and effectiveness of the EIA process and EM&A programme (e.g. effectiveness and efficiency of the mitigation
measures);
18.
Recommend
any improvement in the EM&A programme; and
19. A conclusion to state the return of ambient
and/or the predicted scenario as per EIA findings.
13.6.1. The EM&A program could be terminated upon completion of those construction activities that have the potential to cause significant environmental impacts. The proposed termination by the Contractor should only be implemented after the proposal has been endorsed by the IEC, the ER and the Project proponent followed by final approval from the Director of Environmental Protection.
13.7.1. Site-based document such as the monitoring field records, laboratory analysis records, site inspection forms, etc. are not required to be included in the monthly EM&A reports, for submission. However, the document shall be well kept by the ET and be ready for inspection upon request. All relevant information shall be clearly and systematically recorded in the document. The monitoring data shall also be recorded in electronic form, and the software copy can be available upon request. All the documents and data shall be kept for at least one year after completion in construction of the Project.
13.8.1. To facilitate public inspection of the Baseline Monitoring Report and regular EM&A Reports via the EIAO Internet Website and at the EIAO Register Office, electronic copies of these Reports shall be prepared in Hyper Text Markup Language (HTML) (latest version) and in Portable Document Format (PDF version 1.3 or later), unless otherwise agreed by the Director and. For the HTML version, a content page capable of providing hyperlink to each section and sub-section of these Reports will be included in the beginning of the document. Hyperlinks to all figures, drawings and tables in these Reports will be provided in the main text from where the respective references are made. All graphics in these Reports will be in interlaced GIF format unless otherwise agreed by the Director. The content of the electronic copies of these Reports must be the same as the hardcopies
13.8.2. A dedicated web site will be set up with notification in writing to the Director of the Internet address where the environmental monitoring and project data is to be placed, within six weeks after the commencement of construction of the Project. All environmental monitoring and audit data and reports shall be made available to the public via a dedicated web site to be set up in the shortest practicable time and in no event later than two weeks after the relevant environmental monitoring data are collected or become available, unless otherwise agreed with the Director.
13.8.3. The internet website will enable user-friendly public access to the monitoring data and project data including the project profile of the Project, the EIA Report, the Environmental Permit(s), all environmental monitoring and audit data and reports, and all finalized submissions and plans required under the relevant environmental permit(s). The internet website shall have features capable of:
1.
Providing access to all
environmental monitoring data collected since the commencement of works
2.
Searching by date
3.
Searching by types of
monitoring data
4.
Hyperlinks to relevant
monitoring data after searching; or otherwise as agreed by the Director
13.9.1. With reference to Event/Action Plans in previous sections, when the environmental quality limits are exceeded, the ET shall immediately notify the IEC, ER and EPD, as appropriate. The notification shall be followed up with advice to EPD on the results of the investigation, proposed actions and success of the actions taken, with any necessary follow-up proposals. A sample template for the interim notifications is shown in Appendix B.
14.1.1. The implementation schedules for the recommended mitigation measures for each environmental aspect covered in this EIA are given in Table 14.1 to Table 14.7.
Table 14.1 Implementation Schedule of Recommended Mitigation Measures – Air Quality
|
EIA Ref. |
EM&A Ref. |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Who to implement the
measures? |
Location / Ti |
What requirements or
standards for the measures to achieve? |
|
Construction Phase |
||||||
|
3.6.1 |
3.2.3 |
Dust control requirements stipulated in Air Pollution
Control (Construction Dust) Regulation should be implemented: |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ The
works area for site clearance shall be sprayed with water before, during and
after the operation so as to maintain the entire
surface wet |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Restricting
heights from which materials are to be dropped, as far as practicable to
minimize the fugitive dust arising from unloading/ loading |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Immediately
before leaving a construction site, all vehicles shall be washed to remove
any dusty materials from the bodies and wheels. However, all spraying of
materials and surfaces should avoid excessive water usage |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Where
a vehicle leaving a construction site is carrying a load of dusty materials,
the load shall be covered entirely by clean impervious sheeting to ensure
that the dusty materials will not leak from the vehicle |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Travelling
speeds should be controlled to reduce traffic induced dust dispersion and
re-suspension within the site from the operating haul trucks |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Erection
of hoarding of not less than 2.4 m high from ground level, where appropriate |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Any
stockpile of dusty materials shall be covered entirely by impervious
sheeting; and/or placed in an area sheltered on the top and 4 sides |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ All
dusty materials shall be sprayed with water or a dust suppression chemical
immediately prior to any loading, unloading or transfer operation so as to maintain the dusty materials wet |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO-TM, Air Pollution Control
(Construction Dust) Regulation |
|
3.6.1 |
3.2.3 |
§ Non-road
Mobile Machinery should be approved or exempted with a label issued by EPD.
The label should be displayed at a conspicuous position of the machine or
vehicle |
Air Quality (NRMM emissions) |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 4 of EIAO -TM, Air Pollution Control (Non-road Mobile Machinery) (Emission)
Regulation |
|
3.6.1 |
3.2.3 |
§ The
requirements stipulated in the Works Branch Development Bureau Technical
Circular (Works) No. 8/2010 Enhanced Specification for Site Cleanliness and
Tidiness should be followed as far as practicable to enhance the cleanliness
and tidiness of construction sites |
Air Quality (fugitive dust) Control during
Construction Phase |
Contractors |
At all construction areas of the site during
the entire construction period |
Works Branch Development Bureau Technical
Circular (Works) |
|
Operational Phase |
||||||
|
N/A |
N/A |
None
specific |
N/A |
N/A |
N/A |
N/A |
Table 14.2 Implementation Schedule of Recommended Mitigation Measures – Noise
|
EIA Ref. |
EM&A Ref. |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Who to implement the
measures? |
Location / Ti |
What requirements or
standards for the measures to achieve? |
|
Construction Phase |
||||||
|
4.8.1 |
4.3 |
Good
site practice and noise management should be followed: § only well-maintained plants should be operated on-site and plants should be serviced regularly during the
construction works; § machines and plants that may be in intermittent use
should be shut down between work periods or should be throttled down to a minimum; § plants known to emit noise strongly in one direction
should, where possible, be orientated to direct noise away from the NSRs; § mobile plant should be sited as far away from NSRs as
possible; § material stockpiles and other structures should be
effectively utilized, where practicable, to screen noise from on-site
construction activities; § contractor shall prepare their own Construction Noise
Management Plan before construction commencement; and § silencers
or mufflers on construction equipment should be utilized where appropriate
and should be properly maintained during the construction periods. |
Noise control |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 5 of EIAO-TM, contractual requirements |
|
4.8.4, Table 4.5 |
4.3 |
Use
of quieter PME. |
Noise control |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 5 of EIAO-TM, contractual requirements |
|
4.8.5,
Table 4.6 |
4.3 |
Use
of temporary noise barrier with a minimum surface density of 10 kg/m2
and fitted with appropriate absorptive material to minimize multiple
reflections of noise due to confined space of the surroundings and the
proposed barriers for PME. The temporary noise barrier shall be constructed
with sufficient length (e.g. at least five times greater
than its height) or bent around the noise sources and shall have no opening
or gaps at joints to avoid noise leakage. The use of cantilevered top cover
to provide screening benefits at upper floors shall be considered when
necessary. |
Noise control |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 5 of EIAO-TM, contractual requirements |
|
4.8.6,
Table 4.6 |
4.3 |
Use of
noise enclosure with a sufficient surface density of no less than 10 kg/m2
is proposed to surround certain PMEs. The internal wall of the
enclosure should be lined with 50 mm of sound-absorbent material, or with 25
mm of similar material if mounted on battens. |
Noise control |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 5 of EIAO-TM, contractual requirements |
|
4.8.8,
4.9.3, Table 4.7 |
4.3 |
To reduce the construction noise impact, quieter type
wire saw and hydraulic crusher will be adopted by
the Contractor for the demolition of boundary wall at workfront
020 as considered in the unmitigated scenario. Non-explosive chemical
expansion agent and a concrete pump instead of circular wood saw and concrete
lorry mixer, respectively, will be used during the construction of drainage
and utilities, while the hand-held jigsaw will replace the circular wood saw
for site clearance works. Other quieter equipment / construction methods not
adopted in the assessment shall be considered during the design, tendering
and implementation stage of the construction works as appropriate. |
Noise control |
Contractors |
Works near Crossroads Foundation, Starfront Royale Tower 1 and 2, Seacoast Royale Tower 3,
TMTL 518 Tower 8, Blessing Villa Block F, Surfside, Villa La Plage, Bayview Terrace, Boulder Lodge Staff Quarter,
Castle Peak Sam Chau Ma Temple and Fu Hong Society
Yau Chong Home. |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.4 |
4.3 |
Due to
site constraints, dump truck, lorry and concrete lorry mixer would not be
able to access the site at workfronts 008 and 009.
Similarly, as an additional mitigation measures to reduce the noise impact on
Crossroads Foundation, Starfront Royale Tower 1 and
2, Seacoast Royale Tower 3, TMTL 518 Tower 8 and Villa La Plage,
dump truck, lorry and concrete lorry mixer will be restricted from accessing workfronts 003, 004, 005, 006, 010, 011 and 012.
Considering the inaccessible/restricted distance to the above workfronts is relatively short, only a concrete pump with
noise enclosure will be required to replace the concrete lorry mixer. All
transportation of materials, including the concrete, will be carried out by
trolley with manpower. |
Noise Control |
Contractors |
Works near Crossroads
Foundation, Starfront Royale Tower 1 and 2,
Seacoast Royale Tower 3, TMTL 518 Tower 8, Blessing Villa, Surfside and Villa
La Plage. |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.5 |
4.3 |
Additional
temporary noise barrier will be provided in front of Blessing Villa Block F so as to offer protection to the upper floors. To further
reduce the noise impact on Blessing Villa Block F, the concrete pump will be
placed at least 11.5m away from the NSR. |
Noise control |
Contractors |
Works near Blessing Villa Block F |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.6 |
4.3 |
Contractor
shall erect substantial fixed barriers with a minimum surface density of 10
kg/m2 and constructed with sufficient height and length to
completely screen the PME to be used on the construction site such that none
of the PME will be visible when viewed from any openings of the NSRs. The
fixed noise barriers shall also be constructed with no openings and gaps at
joints to avoid noise leakage. Cross-sectional
drawings to demonstrate the provision of substantial fixed barriers in front
of Seacoast Royale Tower 3 and Villa La Plage are
provided in Figures 4.4.2 to 4.4.5 of the EIA Report for reference.
To further reduce the noise impact, the concrete pump will be placed at least
7.5m away from Seacoast Royale Tower 3 and 26m away from Villa La Plage. |
Noise control |
Contractors |
Works near Seacoast Royale Tower 3 and Villa La
Plage. |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.7,
Table 4.9 |
4.3 |
Additional
temporary noise barriers shall be provided in front of Castle Peak Sam Chau
Ma Temple to block the sightline to the adjacent workfront
to alleviate the potential noise impact. In any case, the Contractor shall
establish a communication channel with the operator of Castle Peak Sam Chau
Ma Temple and maintain liaison with the temple on the works schedule, in
particular when the PMEs are unavoidably close to the temple, e.g. when the
asphalt paver is operating at 30m or less away from the temple, the
Contractor shall re-schedule the works when no ritual services are held in
the temple, in collaboration with the temple operator. Table 4.7 summarises
the recommendation on the use of PME. |
Noise Control |
Contractors |
Works near Castle Peak
Sam Chau Ma Temple |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.8 |
4.3 |
Contractor shall liaise with the school’s management
for the schedule of construction works to avoid carrying out noisy
construction activities during examination period. |
Noise Control |
Contractors |
Works near The Salvation
Army Sam Shing Nursery School |
Annex 5 of EIAO-TM, contractual requirements |
|
4.9.9 |
4.3 |
The Contractor
shall submit a Construction Noise Management Plan (CNMP) to EPD for approval
prior to the commencement of construction of the Project. The CNMP shall be
checked independently and endorsed by the Project Engineer and CEDD to ensure
that the proposals are practicable and could be effectively implemented on site, before submission of the CNMP to EPD. Details on the
use of plants and equipment, their on-time percentages
and the adoption of noise mitigation measures for the construction phase
shall be clearly provided in the CNMP, demonstrating that the construction
works to be undertaken will comply with all prevailing environmental
standards and requirements. All noise mitigation measures implemented shall
be properly maintained during construction of the Project. |
Noise Control |
Contractors |
Prior to the
commencement of construction of the Project |
Annex 5 of EIAO-TM, contractual requirements |
|
4.10.2 |
4.3 |
Given
the long project extent, the Project will be constructed in phases, and the
construction activities of the cycle tracks Project will be implemented in
separated sections (e.g. 300m between two active
working sections) to avoid cumulative impacts due to concurrent works of this
Project. The Contractor of this
Project will liaise with the corresponding parties of the concurrent projects
to schedule their works avoiding concurrent works within 300m of these other
projects as far as possible. |
Noise Control |
Contractors |
At all construction areas of the site during
the entire construction period |
Annex 5 of EIAO-TM, contractual requirements |
|
Operational Phase |
||||||
|
N/A |
N/A |
None
specific |
N/A |
N/A |
N/A |
N/A |
Table 14.3 Implementation Schedule of Recommended Mitigation Measures – Water Quality
|
EIA Ref. |
EM&A Ref. |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Who to implement the
measures? |
Location / Ti |
What requirements or
standards for the measures to achieve? |
|
Construction Phase |
||||||
|
5.7.1 |
5.11.1 |
§ The rate of constructing a pile is 15 m/day and 2
piles will be constructed per day; the diameter of pile is 600mm; the working
hour shall be 12 hour per day from 07:00 to 19:00. § Cage type silt curtains (i.e.
size adjustable to suit environmental condition) must be deployed with an
efficiency of 75% or higher for reduction of sediment release from the bored
pile installation. The engineer will review using higher efficiency silt
curtain in later stage. § Restrict beach users entering the piling works area. § Maintain close liaison with LCSD on construction
works schedule of marine viaduct during swimming season from March to
October. § No more than 1/3 of the beach area (for each beach)
shall be closed and only one side of the beach (for each beach) shall be occupied
during the construction. § Contingency plan setup with LCSD on alert beach users
if there are unpredicted sediment suspension. |
Water quality control |
Contractors |
Piling Works at Marine Viaduct Section during
the entire construction period |
Annex 6 of EIAO-TM, WPCO |
|
5.7.3 |
5.11.3 |
§ No construction site discharge will be allowed within
100m of the boundaries of a gazetted beach in any direction, including
rivers, streams and storm drains. § Sand/silt removal facilities such as sand traps, silt
traps and sediment basins should be provided to remove sand/silt particles
from runoff to meet the requirements of the Technical Memorandum standards
under the WPCO. The design of silt
removal facilities should be based on the guidelines provided in ProPECC PN 1/94. All drainage facilities and erosion and
sediment control structures should be inspected monthly and maintained to ensure proper and efficient operation at all times and
particularly during rainstorms. § Work programmes should be designed to minimize the
size of work areas to minimize the soil exposure soil and reduce the
potential for increased siltation and runoff; |
Control of site runoff |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
|
|
§ Boundaries of earthworks should be marked and
surrounded by dykes or embankments for flood
protection, as necessary. § Silt removal facilities, channels and manholes should
be maintained and cleaned regularly to ensure the proper function; § Water pumped out from excavations should be
discharged into silt removal facilities; § Careful programming of the works to minimize soil
excavation during the rainy season; If excavation of soil cannot be avoided
during the wet season (April to September), exposed slope surfaces should be
covered by a tarpaulin or other means. Other measures that need to be
implemented before, during, and after rainstorms are summarized in ProPECC PN 1/94. § Earthwork surfaces should be well compacted
and the subsequent permanent work or surface protection should be carried out
immediately after the final surfaces are formed; § Open stockpiles of construction materials on site
should be covered with tarpaulin or similar fabric during rainstorms. § Wastewater generated from the washing down of mixer
trucks and drum mixers and similar equipment should wherever practicable be
recycled. The discharge of wastewater should be kept to a minimum;
§ To prevent pollution from wastewater overflow, the
pump sump of any water recycling system should be provided with an on-line
standby pump of adequate capacity and with automatic alternating devices; |
|
|
|
|
|
|
|
Under normal circumstances, surplus wastewater may be discharged into foul sewers after treatment in silt removal and pH adjustment facilities (to within the pH range of 6 to l0). Disposal of wastewater into storm drains will require more elaborate treatment. Surface run-off should be segregated from the concreting works area as much as possible, and diverted to the stormwater drainage system. Surface run-off contaminated by materials during concreting works should be adequately treated before disposal into stormwater drains; |
|
|
|
|
|
5.7.4 |
5.11.4 |
Portable chemical toilets and sewage holding tanks should be provided for handling the construction sewage generated by the workforce. A licensed contractor should be employed to provide appropriate and adequate portable toilets to cater populations and be responsible for appropriate disposal and maintenance |
Control of Sewage Effluent
from on-site Workforce |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.5 |
5.11.5 |
Notices should be posted at conspicuous locations to
remind the workers not to discharge any sewage or wastewater into the nearby
environment during the construction phase of the Project. Regular
environmental audit on the construction site should be conducted to provide an
effective control of any malpractices and achieve continual improvement of
environmental performance on site. It is anticipated that sewage generation
during the construction phase of the Project would not cause water quality
impact after undertaking all required measures. |
Control of Sewage Effluent
from on-site Workforce |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.7 |
5.11.7 |
Good site practices should be adopted to clean
the rubbish and litter on construction sites to avoid the rubbish, debris and litter from entering to nearby water bodies. It
is recommended to clean the construction sites on a regular basis. |
Control for general activities |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.8 |
5.11.8 |
Wastewater generated from the washing down of mixer
trucks and drum mixers and similar equipment should wherever practicable be
recycled. The discharge of wastewater should be kept to a minimum |
Control for general activities |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.9 |
5.11.9 |
To prevent pollution from wastewater overflow,
the pump sump of any water recycling system should be provided with an
on-line standby pump of adequate capacity and with automatic alternating
devices |
Control for general activities |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.10 |
5.11.10 |
Under normal circumstances, surplus wastewater
may be discharged into foul sewers after treatment in silt removal and pH
adjustment facilities (to within the pH range of 6 to l0). Disposal of
wastewater into stormdrains will require more
elaborate treatment. Surface run-off should be segregated from the concreting
works area as much as possible, and diverted to the
stormwater drainage system. Surface run-off contaminated by materials during
concreting works should be adequately treated before disposal into stormwater
drains |
Control for general activities |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.11 |
5.11.11 |
Illegal disposal of chemicals should be
strictly prohibited. Registration to EPD as a CWP (Chemical Waste Producers)
is required if chemical wastes are generated and need to be disposed of.
Disposal of chemical wastes should be carried out in compliance with the
Waste Disposal Ordinance (WDO). The Code of Practice on Packaging, Labelling
and Storage of Chemical Wastes published under the WDO should be used as a
guideline for handing chemical wastes |
Control for accidental spillage |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
5.7.12 |
5.11.12 |
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 any nearby storm water drains, fall 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. The bund should be drained of rainwater after a rain event |
Control for accidental spillage |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
Operational Phase |
||||||
|
5.7.13 |
5.11.13 |
The ProPECC PN 5/93 is applicable to the
Project during the operational phase. Runoff from the cycle track will be
conveyed into designated drainage systems. Silt trap/interceptor would be
provided and maintained in the designated drainage systems to minimize water
quality impact arising from surface runoff. The wastewater (i.e., sewage
effluent from visitors) arising will be collected by existing sewerage
pipeline. The administrative measures such as regular cleaning of cycle track
surface, maintenance of silt trap, etc. would be in place. |
Control for runoff and sewerage |
Operator |
At the project site area during the operational period |
ProPECC
PN5/93, |
Table 14.4 Implementation Schedule of Recommended Mitigation Measures - Waste Management Implications
|
EIA Ref. |
EM&A Ref. |
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Who to implement the measures? |
Location / Ti |
What requirements or standards for the measures to achieve? |
|
Construction Phase |
||||||
|
6.4.2 |
6.3.2 |
C&D Materials § All
C&D materials shall be sorted on-site into inert and non-inert C&D
materials, and where the materials can be recycled or reused, they shall be
further segregated. Inert material, or public fill will comprise
stone, rock, masonry, brick, concrete and soil which is suitable for land
reclamation and site formation whilst non-inert C&D materials include all
other wastes generated from the construction process such as plastic packaging
and vegetation (from site clearance). § The
Contractor shall be responsible for identifying what materials can be
recycled/ reused, whether on-site or off-site. In the event of the latter,
the Contractor shall make arrangements for the
collection of the recyclable materials. Any remaining non-inert
C&D materials shall be collected and disposed of at landfills whilst any
inert C&D materials shall be re-used on site as far as possible.
Alternatively, if no use of the inert material can be found on-site, the
materials can be delivered to a Public Fill Reception Facilities after
obtaining the appropriate licence § In order to monitor the disposal of
C&D materials and solid wastes at public filling facilities and
landfills, and control fly-tipping, a trip-ticket system shall be implemented
by the Contractor, in accordance with the contract and the requirements of DB
TC (Works) No. 6/2010 Trip Ticket System for Disposal of Construction and
Demolition Materials. |
Waste management during
construction |
Contractors |
At all construction areas
of the site during the entire construction period |
Annex 7 of EIAO-TM, Waste
Disposal Ordinance |
|
6.4.2 |
6.3.2 |
§ Prior
to disposal off-site, non-inert C&D materials will have to be temporarily
put in a suitably covered storage area where it will have to be regularly
cleaned and maintained to avoid attracting vermin and pests. With proper
on-site handling and storage as well as regular disposal of these wastes, no
adverse impacts will be envisaged. § Dump
trucks with mechanical cover shall be used to minimise windblown litter and
dust during transportation of waste. |
Waste management during
construction |
Contractors |
At all construction areas
of the site during the entire construction period |
Annex 7 of EIAO-TM, Waste
Disposal Ordinance |
|
6.4.2 |
6.3.2 |
Chemical Waste § Under
the Waste Disposal (Chemical Waste) (General) Regulation, the Contractor
shall register as a Chemical Waste Producer if chemical wastes such as spent
lubricants and paints are generated on site. Only licensed chemical waste
collectors shall be employed to collect chemical waste generated at site. The
handling, storage, transportation and disposal of
chemical wastes shall be conducted in accordance with the Code of Practice on
the Packaging, Labelling and Storage of Chemical Wastes and A Guide to the
Chemical Waste Control Scheme both published by EPD. |
Waste management during
construction |
Contractors |
At all construction areas
of the site during the entire construction period |
Annex 7 of EIAO-TM, Waste
Disposal Ordinance |
|
6.4.2 |
6.3.2 |
General Refuse § A sufficient number of
covered bins shall be provided on site for the containment of general refuse
to prevent visual impacts and nuisance to the sensitive
surroundings. These bins shall be cleared daily
and the collected waste disposed of to the refuse transfer stations or
landfills. Further to the issue of DB TC (Works) No. 8/2010 Enhanced
Specification for Site Cleanliness and Tidiness, the Contractor is required
to maintain a clean and hygienic site throughout the project works. |
Waste management during
construction |
Contractors |
At all construction areas
of the site during the entire construction period |
Annex 7 of EIAO-TM, Waste
Disposal Ordinance |
|
Operational Phase |
||||||
|
6.4.3 |
6.3.3 |
Waste collection facilities (e.g.
litter bins) will be included in the design of the supporting facilities, and
at regular intervals along the route. The Government Department
responsible for managing the facilities will be responsible for arranging for
regular collection of litter from these facilities. Separate
collection bins shall be provided for aluminium cans, plastic
drinks bottles and paper wastes, which will facilitate recycling of
these waste streams. |
Waste
management during operation |
Maintenance
department |
Operation
|
Annex
7 of EIAO-TM, Waste Disposal Ordinance |
|
6.4.4 |
6.3.4 |
General
refuse should be removed on a daily basis to
minimize potential odour, pest and litter impacts. General refuse will have
to be temporarily put in a suitably covered refuse collection point where it
will have to be regularly cleaned and maintained to avoid attracting vermin
and pests. |
Waste management during
operation |
Maintenance department |
Operation |
Annex 7 of EIAO-TM, Waste
Disposal Ordinance |
Table 14.5 Implementation Schedule of Recommended Mitigation Measures – Ecology and Fisheries
|
EIA Ref. |
EM&A Ref. |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Who to implement the
measures? |
Location / Ti |
What requirements or
standards for the measures to achieve? |
|
Construction Phase |
||||||
|
8.9.4 |
8.2.3 |
In
accordance with the Practice Note for Professional Persons on Construction
Site Drainage, Environmental Protection Department, 1994 (ProPECC
PN 1/94), best management practices should be implemented on site as far as
practicable to control site runoff and drainage at all work sites during
construction, so that the treated runoff will be discharged to public
drainage system in compliance with the WPCO.
Construction effluent, site run-off and sewage should be properly collected
and/or treated. Wastewater from a
construction site should be managed.
Proper locations for discharge outlets of wastewater treatment
facilities well away from the natural streams/rivers should be
identified. Effluent monitoring should
be incorporated to make sure that the discharged effluent from construction
sites meets the effluent discharge guidelines. |
Control for general activities |
Contractors |
At all construction areas of the site during
the entire construction period |
ProPECC
PN1/94, WPCO |
|
Operational Phase |
||||||
|
N/A |
N/A |
None specific |
N/A |
N/A |
N/A |
N/A |
Table 14.6 Implementation Schedule of Recommended Mitigation Measures – Landscape and Visual
|
EM&A Ref. |
Recommended Environmental Protection Measures/
Mitigation Measures |
Objectives of the recommended measures & main
concerns to address |
Who to implement the measures? |
Location / Ti |
What requirements or standards for the measures to
achieve? |
|
|
Construction Phase |
||||||
|
10.10.8 Table
10.12 CP1 |
10.3.1 Table 10.1 CP1 |
CP1 - Preservation of Existing Trees -
Trees / woodland within the Works Area which are unaffected by the works
shall be protected and preserved during the detailed design stage and
construction phase. The tree preservation proposals shall be coordinated with
the layout and design of the engineering and architectural works at the
detailed design stage for further retention of individual trees. The
preservation of existing tree shall provide instant greening and screening
effect for proposed works. Tree protection works to be undertaken in
accordance with DEVB TC(W) 4/2020 on “Tree Preservation” and tree risk
assessment in accordance with “Guidelines for Tree Risk Assessment and
Management Arrangement” by DEVB. |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM, DEVB TC(W) No. 4/2020 |
|
10.10.8 Table
10.12 CP2 |
10.3.1 Table 10.1 CP2 |
CP2 - Preservation of Existing Topsoil
- Topsoil disturbed during the construction phase will be tested using a
standard soil testing methodology and where it is found to be worthy of
retention stored for re-use. The soil will be stockpiled to a maximum height
of 2 m and will be either temporarily vegetated with hydro-seeded grass
during construction or covered with a waterproof covering to prevent erosion.
The stockpile should be turned over on a regular basis to avoid acidification
and the degradation of the organic material, and
reused after completion. Alternatively, if this is not practicable, it should
be considered for use elsewhere, including other projects. This is considered a
general measure for good site practice |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM |
|
10.10.8 Table
10.12 CP3 |
10.3.1 Table 10.1 CP3 |
CP3 - Works Area and Temporary Works
Areas - The landscape of these works areas should be
restored to their original status or redesigned as new amenity areas
following the completion of the construction phase. Construction site
controls shall be enforced, where possible, to ensure that the landscape and
visual impacts arising from the construction phase activities are minimized
including the storage of materials, the location and appearance of site
accommodation and the careful design of site lighting to prevent light
spillage. Screen hoarding may not be practicable for several linear sections
of this project due to the close viewing distances involved and spatial
constraints of the works areas |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM |
|
10.10.8 Table
10.12 CP4 |
10.3.1 Table 10.1 CP4 |
CP4 - Mitigation Planting - Replanting
of existing / disturbed vegetation shall be undertaken as soon as technically
feasible during the construction phase. The priority shall be areas at the
periphery of the site to ensure that proposed planting fulfils its role in
mitigating the predicted impacts including screening views of the Project as
early as possible during the operation phase |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM, DEVB TC(W) No. 4/2020 |
|
10.10.8 Table
10.12 CP5 |
10.3.1 Table 10.1 CP5 |
CP5 - Transplantation of Existing Trees
- Existing 147 trees recommended to be transplanted under the current
proposal, final recipient site should be, as far as space allows, adjacent to
their current locations alongside of the cycle track or within supporting
facilities to retain their contribution to the local landscape context. The
implementation programme of the proposed works should reserve enough time for
advance tree transplanting preparation works to enhance the survival of these
transplant trees. Transplanting proposals will subject to the findings of the
detailed tree survey and felling application undertaken at the detailed
design stage and upon to the approval by relevant departments |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM, DEVB TC(W) No. 4/2020 |
|
10.10.8 Table
10.12 CP6 |
10.3.1 Table 10.1 CP6 |
CP6 -
Coordination with Concurrent Projects- Coordinated implementation program
with concurrent projects such Castle Peak Road Widening in
order to minimize visual and cumulative landscape impact during the
construction Phase |
Good site practices and to minimize landscape and
visual impact |
Project Proponent – CEDD (Via the ER / Contractor) |
Work
sites during construction |
Annex
10 and Annex 18 of EIAO-TM, |
|
Operational Phase |
||||||
|
10.10.8 Table
10.13 OP1
|
10.3.1 Table 10.2 OP1 |
To
incorporate design features considering: -
Integrated design approach -
Building and infrastructure massing -
Treatment of built structures -
Responsive building finishes -
Responsive lighting design |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
Annex
10 and Annex 18 of EIAO-TM, |
|
10.10.8 Table
10.13 OP2
|
10.3.1 Table 10.2 OP2 |
Roadside and
Amenity Planting – This planting will utilise large ornamental trees, either
with high canopy and thin foliage to allow visual access in the views from
the adjacent neighbourhoods to the further roadside or leisure landscape or
dense foliage at selected locations to provide shade environment for cyclist
and to give accent to the existing roadside planting. Native species will be utilises
on sloping or wooded areas thereby enriching the ecological connectivity
between existing woodland habitats with the advantage of creating a more
coherent landscape framework. Large Feature Trees will be utilises
along the cycle track where space allows, with the design intent to create
shaded environment and instant greening effect at key sections of the route.
Smaller ornamental and preferably native species will also be incorporated
within the planting proposal to add to create visual interest for the public
and to help create a comprehensive planting framework that could enhance both
ecological and landscape value of the surroundings. |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
Annex
10 and Annex 18 of EIAO-TM, |
|
10.10.8 Table
10.13 OP3 |
10.3.1 Table 10.2 OP3 |
Compensatory Planting Proposals - The Project Proponent would implement the compensatory planting as proposed in the Tree Preservation and Removal Proposal (TPRP) to be submitted to relevant government departments for approval in accordance with DEVB TC(W) No. 4/2020 to compensate for the trees to be felled. As far as practicable, implementation of compensatory tree planting should be of a ratio not less than 1:1 in terms of number of trees removed including dead trees, but excluding trees of undesirable species. Based on the cycle track layout, approximately 207 nos. of trees within areas of the existing public realm are proposed to be compensated. However, there would be limited space available for new tree planting in the vicinity of the proposed cycle track. Given these constraints, space within the Project is available for the planting of approximately 50 nos. new trees on a sustainable basis. As for the remaining 157 nos. new trees to be planted offsite, the Project Proponent will actively liaise with all the relevant departments throughout the TPRP process to confirm their planting locations. |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
Annex
10 and Annex 18 of EIAO-TM, |
|
10.10.8 Table
10.13 OP4 |
10.3.1 Table 10.2 OP4 |
Treatment of Retaining Wall and Slopes- In accordance with GEO
Publication No. 1/2011, these engineering structures will be aesthetically
enhanced through the use of soft landscape works
including tree and shrub planting to give man-made slopes a more natural
appearance blending into the local rural landscape. Whip sized planting is preferred on the
face of soil cut slopes and at the crest and toe of the slope, and
within berm planters these smaller, younger plants adapt to their new growing conditions more quickly than
larger sized stock
and establish a naturalistic effect
more rapidly. |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
Annex
10 and Annex 18 of EIAO-TM, |
|
10.10.8 Table
10.13 OP5 |
10.3.1 Table 10.2 OP5 |
Protection
and reinstatement of rocky shore at headlands – The proposed cycle bridges
will pass over an area of rocky shore, with various existing rock outcrops
and features visible at low tide. The design shall aim to avoid impacting
these rocky features and where unavoidably impacted shall remove elements for
later reinstatement on completion of the works in order to
help integrate the new structures with the natural shoreline context. |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
Annex
10 and Annex 18 of EIAO-TM, |
|
10.10.8 Table
10.13 OP6 |
10.3.1 Table 10.2 OP6 |
Design of an
Elegant Bridge Structure and Crossings – The proposed cycle bridges is
potentially a visually prominent structure. As such it is important that
careful attention is given to the design of the structure, the associated
profile, arrangement of piers and the compatibility with its landscape
context. The design of railing and parapets with sculptural
and decorative forms shall be employed to lift the aesthetics of these
structures beyond a purely functional / utilitarian appearance. |
To
enhance the visual compatibility to the neighbouring environment |
Project
Proponent – CEDD (Via the detailed design consultant / Contractor) |
Project
sites during design |
EIAO-TM |
Table 14.7 Implementation Schedule of Recommended Mitigation Measures – Cultural Heritage
|
EIA Ref. |
EM&A Ref. |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Who to implement the
measures? |
Location / Ti |
What requirements or
standards for the measures to achieve? |
|
Construction Phase |
||||||
|
11.6.5, 11.6.6 Table 11.2 |
11.2.4, 11.2.5 Table 11.1 |
§ A condition survey will be carried out by qualified building surveyor or engineer in advance of works for other built heritage items that may be affected by ground-borne vibration. The Condition Survey Report should contain descriptions of the structure, identification of fragile elements, an appraisal of the condition and working methods for any proposed monitoring and precautionary measures that are recommended. § The condition
survey report for the other built heritage items must be submitted to AMO for
comment before construction activities commence. The location of proposed monitoring points
in the building should avoid damaging the historic fabric and agreed by the
owner. The contractor should implement the approved monitoring and
precautionary measures |
Condition Survey |
Contractor |
Works near HB-09, HB-11 and HB-12 |
Annex 10 of EIAO-TM |
|
11.6.7 Table 11.2 |
11.2.6 Table 11.1 |
A
buffer zone should be provided to separate the building or structure from the
construction works. The buffer zone should be clearly marked out by temporary
fencing. The buffer zone should be made at least 1m from the proposed works
or if this is not possible as large as the site restrictions allow |
Provision of Buffer
Zones |
Contractor |
Works near HB-03, HB-07, HB-08, HB-09, HB-11,
HB-12 |
Annex 10 of EIAO-TM |
|
11.6.8, 11.6.9, Table 11.2 |
11.2.7, 11.2.8, Table 11.1 |
§ Any proposed works in close proximity to buildings or structures used by the public have the potential to create an unsafe environment for members of the public. § The
contractor should ensure that safe public access if
possible, through provision of clearly marked paths separated from the
construction works areas is provided for any such affected cultural heritage
structure |
Provision of Safe Public Access |
Contractor |
Works near HB-03, HB-07, HB-09, HB-11, HB-12 |
Annex 10 of EIAO-TM |
|
Operational Phase |
||||||
|
N/A |
N/A |
§ None specific |
N/A |
N/A |
N/A |
N/A |