Table of Contents

 

12       Environmental Monitoring and Audit Requirements.. 12-1

12.1       Introduction.. 12-1

12.2       Air Quality Impact.. 12-1

12.3       Noise Impact.. 12-1

12.4       Water Quality Impact.. 12-1

12.5       Sewerage and Sewage Treatment Implications.. 12-2

12.6       Waste Management Implications.. 12-2

12.7       Land Contamination.. 12-2

12.8       Ecological Impact (Terrestrial and Marine) 12-2

12.9       Fisheries Impact.. 12-3

12.10    Landscape and Visual Impacts.. 12-3

 

 

 

 


12      Environmental Monitoring and Audit Requirements

12.1             Introduction

12.1.1.1      This section further elaborates the requirements of environmental monitoring and audit (EM&A) for the construction and operation phases of the Project, based on the assessment results of various environmental issues.

12.1.1.2      The purpose of the EM&A programme is to ascertain and verify the assumptions implicit to, and accuracy of, EIA study predictions. The EM&A programme includes the scope of the EM&A requirements for the Project 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.

12.1.1.3      The following sections summarise the recommended EM&A requirements for the Project. Details of the specific requirements are provided in a stand-alone EM&A Manual.

12.2             Air Quality Impact

12.2.1.1      With the implementation of dust suppression measures stipulated in Air Pollution Control (Construction Dust) Regulation, good site practice and proposed mitigation measures, no adverse dust and odour impact arisen from the construction works would be expected at the ASRs in the vicinity of the site. No air quality monitoring is therefore considered necessary.  Weekly site audit is recommended to be conducted during construction phase in order to ensure the proposed mitigation measures are implemented in an appropriate manner and are effective.

12.2.1.2      Since no significant adverse air quality impact is anticipated during the operation phase of the Project, monitoring and audit is deemed unnecessary.

12.3             Noise Impact

12.3.1.1      Noise monitoring is recommended for the construction phase of the Project to ensure compliance with the daytime construction noise criterion.  The implementation of the recommended mitigation measures for daytime construction activities should also be audited as part of the EM&A programme.  Details of the EM&A requirements are provided in the standalone EM&A Manual.

12.4             Water Quality Impact

12.4.1.1     Water quality monitoring and audit is considered necessary to ensure that the recommended mitigation measures are implemented properly throughout the construction phase and during maintenance dredging in operation phase.  Weekly site audit is recommended to be conducted during construction phase in order to ensure the proposed mitigation measures are implemented in an appropriate manner and are effective. Marine water quality monitoring is recommended during both capital and maintenance dredging works of the Project. Details of the water quality monitoring programme are specified in the EM&A Manual.

12.5             Sewerage and Sewage Treatment Implications

12.5.1.1      Since adverse sewerage impact from the Project would not be anticipated, no EM&A requirement is considered necessary.

12.6             Waste Management Implications

12.6.1.1      It is 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 the recommended good waste management practices and relevant legislation and waste management guidelines. The recommended mitigation measures should form the basis of the site Waste Management Plan (WMP) to be developed by the Contractor in the construction phase.

12.6.1.2      It is recommended that the waste arisings generated during the construction activities should be audited regularly to determine if wastes are being managed in accordance with approved procedures and the site WMP. The audits should look at all aspects of on-site waste management practices including waste generation, storage, recycling, transport and disposal. Apart from site inspections, documents including licences, permits, disposal and recycling records should be reviewed and audited for compliance with the legislation and Contract requirements. In addition, the routine site inspections should check the implementation of the recommended good site practices and other waste management mitigation measures.

12.6.1.3      It is expected that there would be limited quantities of waste to be generated from the operation of the Project and adverse environmental impacts would not be anticipated with the implementation of good waste management practices. No waste monitoring and audit programme for the operation phase of the Project is considered necessary.

12.7             Land Contamination

12.7.1.1      No land contamination impact would be anticipated from the Project, therefore, no monitoring programme is required.

12.8             Ecological Impact (Terrestrial and Marine)

12.8.1.1      Implementation of the recommended mitigation measures described in Section 9.8  should be audited regularly throughout the construction phase.

12.8.1.2     To minimise the direct loss/damage to the coral colonies, translocation and/or other best practicable mitigation measures will be implemented for the directly affected coral colonies. A detailed coral mapping is recommended to identify the exact number of coral colonies (both movable and non-movable) within the affected area. Surveys of finding a suitable recipient site are also recommended. The coral mitigation is recommended to be undertaken during the winter season (November-March) in order to avoid disturbance to the spawning period (i.e. July to October) of the affected coral colonies.  A detailed Coral Mitigation Plan, including description of methodology including translocation (e.g. pre-translocation survey, identification / proposal of coral recipient site) and/or other best practicable mitigation measures, and post-mitigation monitoring programme, should be prepared with reference to recently approved EIA and subject to comment by the AFCD before commencement of the coral mitigation. All the coral mitigation exercises should be conducted by experienced marine ecologist(s) with at least 5 years relevant experience prior to commencement of coral mitigation. During operation phase, coral survey will be carried out to review and update the conditions of corals in the dredging area and its vicinity prior to each maintenance dredging. Subject to the findings of the coral survey, the impact on corals due to maintenance dredging will be reviewed and mitigation measures will be proposed as necessary.

12.9             Fisheries Impact

12.9.1.1     Since no unacceptable fisheries impact would be anticipated during the construction and operation phases of the Project, no specific monitoring for fisheries resources is considered necessary.  Nonetheless, the implementation of the recommended water quality mitigation measures should be regularly audited during the construction phase.

12.10        Landscape and Visual Impacts

12.10.1.1 The design, implementation and maintenance of landscape and visual mitigation measures should be checked to ensure that they are incorporated in the detailed design. Implementation of the applicable recommended mitigation measures should be regularly checked through the site audit programme during the construction phase.