Chapter Title Page
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12.5 Landscape
and Visual Impact 12.7 Waste
Management Implication 12.10 Cultural
Heritage Impact |
To ascertain and verify the assumptions implicit to and accuracy of EIA study predictions, an EM&A programme would be required. This section further elaborates the requirements of EM&A for the construction and operation of the Project, based on the assessment results of the various issues.
The following sections summarize the recommended EM&A requirements. Details of the EM&A programme are presented in a stand-alone EM&A Manual released separately.
Given residual airborne noise impact is predicted during the construction phase at Wong Chuk Hang Depot, Wong Chuk Hang Nullah, Entrance A of LET Station and SOH Station, to ensure that the nearby NSRs will not be subjected to unacceptable construction noise impact, an Environmental Monitoring and Audit (EM&A) programme is recommended.
Prior to the operation phase of the Project, commissioning tests should be conducted to ensure compliance of both the operational airborne and ground-borne noise levels with the relevant EIAO-TM noise criteria. Details of the test requirements are provided in a stand-alone EM&A Manual.
It is recommended that auditing of mitigation measures should be carried out periodically. The ardeid night roost location should be monitored monthly by a qualified ecologist to check the status. Restriction on working hour can be ceased if the night roost is relocated to an unaffected area.
Adverse water quality impact was not predicted during the construction and operation phase of the Project. Nevertheless, appropriate mitigation measures are recommended to minimize potential water quality impacts.
Water quality monitoring is recommended during the course of marine construction works at Aberdeen Channel to obtain a robust, defensible database of baseline information of marine water quality before construction, and thereafter, to monitor any variation of water quality from the baseline conditions and exceedances of WQOs at sensitive receivers during construction and to ensure the recommended mitigation measures are properly implemented.
Regular audit of the implementation of the recommended mitigation measures during the construction phase at the work areas should also be undertaken during the construction phase to ensure the recommended mitigation measures are properly implemented.
Details of the water quality monitoring and audit programme and the Event and Action Plan are provided in the stand-alone EM&A Manual.
12.5 Landscape and Visual Impact
The design, implementation and maintenance of landscape and visual mitigation measures is a key aspect and should be checked to ensure that they are fully realised, thus EM&A for landscape and visual resources should be undertaken. Implementation of the mitigation measures recommended shall be monitored through the site audit programme.
Blasting activities regarding storage and transport of explosives should be supervised and audited by competent site staff to ensure strict compliance with the blasting permit conditions.
12.7 Waste Management Implication
Waste management would be the contractor’s responsibility to ensure that all wastes produced during the construction of the Project are handled, stored and disposed of in accordance with good waste management practices and EPD’s regulations and requirements. The recommended mitigation measures shall form the basis of the site Waste Management Plan to be developed by the Contractor in the construction phase.
During construction phase, regular site inspection as part of the EM&A procedures should be carried out to determine if wastes are being managed in accordance with approved procedures and the site Waste Management Plan. It should look at different aspects of waste management including waste generation, storage, recycling, treatment, transport and disposal.
In view of the desktop review results and the Site Investigation Results, bulk excavation of soil for land remediation is not expected. As such, any environmental monitoring in relation to land remediation is not required.
On the other hand during construction phase, land contamination monitoring could be carried out in the form of regular site inspection. All related procedures and facilities in handling or storage of chemicals and chemical wastes should be audited regularly to make sure they are in order and intact and reported in the EM&A reports as such.
During operation phase, regular audits are expected in the form of company’s internal and external audits. All the procedures in handling chemicals and chemical wastes would then be audited against company policies, regulations and international standards. Subsequent audit results would be reported in the corresponding audit reports.
The predicted TSP concentrations would comply with the air quality criteria with the implementation of dust suppression measures stipulated in the Air Pollution Control (Construction Dust) Regulation. Dust monitoring is considered necessary during the construction phase and regular site audits are required to ensure that the dust control measures are properly implemented.
12.10 Cultural Heritage Impact
During
the construction phase an archaeological watching brief should be conducted in certain
areas of impacts (refer
to Table 11.32) by a qualified archaeologist. The
archaeologist must submit a proposal for scope and methodology for the watching
brief to the AMO for approval once the construction programme has been
finalised and prior to the licence application. The granting of such licence by
the Antiquity Authority may take up to 8 weeks after submission of the
application form and the required information.
No impacts to archaeological resources will occur during the operation phase.
Vibration levels must be controlled to levels not exceeding 25mm/s. Vibration monitoring should be carried out by the Contractor. The following structures would require monitoring during the construction phase; Old Victoria Barrack Former Explosive Magazine (GB-6), Old Victoria Barracks Montgomery Block (GB-7), Old Victoria Barracks Roberts Block (GB-8), Old British Military Hospital Main Building and Annex (GB-5), Hung Shing Temple on Ap Lei Chau (GB-1), Old Victoria Barracks Block GG (ADM-1), Earth God Shrine on Ap Lei Chau (ALC-2) and Remains of the former Aberdeen Barracks on Ap Lei Chau (ALC-3).
During the construction phase, protective covering in the form of plastic sheeting should be provided for the exterior walls of the Tai Wong Ye Temple (WCH-1) in the vicinity of the construction works, subject to the agreement with the premise landlord. Safe public access should be provided to the temple, separated from the works area by temporary fencing.
A full cartographic and photographic record of the shrine (WCH-19) should be undertaken prior to the demolition of the shrine.
It is recommended that a buffer zone (minimum of 5m or if this is not possible as large as site restrictions allow) should be provided for the shrine (WCH-17). The buffer zone should be marked by temporary fencing. It should be noted that the above mitigation will not fall under the EIAO requirements. The project proponent will undertake to implement the mitigation and the details of implementation including responsible parties and the programme which will be implemented under a separate mechanism to be agreed with relevant government departments and the AMO.