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10 Environmental Monitoring and Audit 10.5 Waste Management Implications |
This Section presents a summary of Environmental Monitoring and Audit (EM&A) requirements for each impact assessment described in this EIA Report.
The extent of the STP building construction works for the proposed Project represent only a small part of the proposed WSW Development. Therefore, regular dust monitoring is not considered necessary during the construction of the Project. Moreover, the on-going EM&A programme for the proposed WSW Development would overlap with any monitoring proposed for this Project.
As the proposed STP will be fully enclosed, installed with a high-efficiency deodorizer with a forced ventilation system, and is not of a large scale; it is anticipated that there would not be significant odour impact due to the proposed STP and sludge generated on the nearby ASRs. Therefore, no monitoring during the operation phase is required.
Upon commissioning of the public trunk sewer, the sewage from the proposed development will be connected to the public sewerage system and the STP will be decommissioned. However, as the STP will remain on-site and not be demolished, no monitoring during the decommissioning phase is required.
The extent of the STP construction works represent only a small part of the proposed WSW Development. As regular noise monitoring of the on-going EM&A programme for the proposed WSW Development would be carried out during the whole construction period of the Project, no noise monitoring is proposed under this project during the construction phase of the proposed STP.
Prior to the operation of the proposed STP, a noise commissioning test should be conducted by the Contractor to check for the compliance of the noise levels from the operation of the fixed plant with the stipulated noise criteria. The testing results should be checked and signed by the Contractor, the Engineer’s Representative and the Environmental Team and verified by Independent Environmental Checker respectively.
During construction phase, regular site audits shall be conducted to check implementation of the recommended mitigation measures.
During operation phase, the management, maintenance and operation of the onsite STP shall follow the O&M Manual for the onsite STP and the Management Manual of the Development, which shall cover the mitigation measures specified in this EIA report. An EM&A program will be implemented according to the EM&A manual. An Environmental Monitoring Team, who will be responsible to conduct reclaimed water quality sampling and testing and reclaimed water supply and use monitoring, should be appointed by the Project Proponent / Estate Manager. For the reclaimed water quality sampling and testing, samples of treated effluent should be taken regularly and tested by a HOKLAS or other internationally accredited laboratory to ensure the quality meet the reuse standard specified in the “Water Supplies Department Inter-departmental Working Group on the Implementation of Reclaimed Water Supply in Sheung Shui and Fanling”.
It 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 should form the basis of the WMP to be developed by the Contractor throughout the Project period. The WMP shall be prepared and implemented in accordance with ETWB TC (W) No. 19/2005 Environmental Management on Construction Site.
Throughout the construction phase of the Project, regular site inspections as part of the EM&A procedures should be carried out to determine if wastes are being managed in accordance with the WMP. Different aspects of waste management including waste generation, storage, recycling, treatment, transport and disposal would be included in the programme.
Mitigation measures for air, noise, water, waste and landscape aspects proposed in respective sections of this EIA Report could serve as precautionary measures to prevent and minimize any indirect disturbance impact or pollution arisen from the construction activities on the local ecology and offsite habitats. These measures include dust control measures, selection of quieter plants, use of movable noise barriers, good site practices for waste and wastewater handling, measures outlined in ProPECC Note PN1/94 to minimise surface runoff from construction site, landscape buffer planting, etc., according to relevant sections of this EIA Report. No ecological specific mitigation measure is considered necessary.
The implementation of the landscape and visual precautionary / enhancement / mitigation measures proposed in Table 8.14 and Table 8.15 should be checked as part of the EM&A procedures during the construction phase and the first year of operation phase during the establishment period of the proposed planting as presented in the separate EM&A Manual.