EXECUTIVE SUMMARY

 i.    This Quarterly Environmental Monitoring and Audit (EM&A) Summary Report is prepared for Contract No. SPW 07/2020 “Environmental Team for Construction of Yuen Long Effluent Polishing Plant Stage 1”. Drainage Services Department (DSD) has appointed Fugro Technical Services Limited (FTS) to undertake the Environmental Team services for the project and implement the EM&A works.

ii.    This is the 8th Quarterly EM&A Summary Report for the Contract which summaries findings of the EM&A programme during the reporting period from 1 January 2023 to 31 March 2023. As informed by the Contractor, major activities in the reporting period were shown in section 1.4.1.

iii.     The EM&A methodology has been effective in monitoring the environmental impacts of the Project and the effectiveness of the mitigation measures. The data collected were useful in determining whether the Project had caused unacceptable impacts on the sensitive receivers. Analysis of all EM&A data collected throughout the baseline and the impact periods demonstrated the environmental acceptability of the Project.

Breaches of Environmental Quality Performance Limits (AL levels)

iv.    No Action and Limit Level exceedance was recorded for air quality monitoring and construction noise monitoring in the reporting period.

v.    No Action and Limit Level exceedance was recorded for water quality in the reporting period.

vi.    No Action / Limit Level exceedance was recorded for noise levels at stations (NMS1 and NMS2) in close proximity to the active ardeid night roosts during the reporting period.

vii.     A total of five (5) Action Level exceedances and two (2) Limit Level exceedances were recorded for the ecological monitoring of birds during the reporting period. However, these exceedances were not project-related.

viii.    No corrective actions were required according to the Event and Action Plans for the Monitoring Parameters.

Land Contamination

ix.   Regular site inspection was carried out to ensure the recommended mitigation measures are properly implemented. The signed final Contamination Assessment Report (CAR) for “Main Storeroom & Workshops”, “Mechanical Workshop”, “Waste Storage Area” and “SAS Thickener House-1” were submitted to EPD respectively on 1st November 2021, 23rd November 2021, 29th April 2022 and 6th July 2022. No contaminated soil and ground water was found within the Main Storeroom & Workshop, Mechanical Workshop, Waste Storage Area and SAS Thickener House-1 and no remedial action is required for both locations. Part of the Site investigation (SI) work within the SAS Thickener House-2 (i.e. ENV-BH18, ENV-BH19, ENV-BH20 and ENV-BH21) was completed by 23rd February 2023. While the laboratory results of sampling works show that there is no contaminated soil or groundwater within the SAS Thickener House-2, the findings are summarized in the CAR for the area which was certified by ET Leader and verified by IEC on 30 March 2023 and will be submitted to EPD.

Complaint Log

x.    No complaints were received in the reporting period.

Notifications of Summons and Successful Prosecutions

xi.    No notifications of summons and successful prosecutions were received in the reporting period.

Reporting Change

 

xii.    There were no reporting changes during the reporting period.


 

 

Contents

1.        INTRODUCTION  

2.       SUMMARY OF EM&A REQUIREMENTS AND MONITORING RESULTS 

3.       LANDSCAPE AND VISUAL 

4.       LAND CONTAMINATION  

5.       SITE INSPECTION AND AUDIT 

6.       NON-COMPLIANCE, COMPLAINTS, NOTIFICATIONS OF SUMMONS AND SUCCESSFUL PROSECUTIONS 

7.       IMPLEMENTATION STATUS OF ENVIRONMENTAL MITIGATION MEASURE 

8.       CONCLUSION AND RECOMMENDATION  

 


 


Tables

Table 1.1 – Contact Information of Key Personnel

Table 1.2 – Main Construction Works Carried out in the Reporting Period

Table 2.1 – Air Quality and Noise Monitoring Location

Table 2.2 – Coordinates of Water Quality Monitoring Locations

Table 2.3 – Summary of Water Quality Exceedance

Table 5.1 – Observations and Recommendations of Site Audit

Table 5.2 – Waste Generated by the Construction and Disposal Ground

Table 7.1 – Status of submissions required under the EP


Figures

Figure 1         Location of Proposed Yuen Long Effluent Polishing Plant

Figure 2         Location of Construction Dust Monitoring Stations

Figure 3         Noise Monitoring Locations

Figure 4         Water Quality Monitoring Locations

Figure 5         Ecology Monitoring Locations


Appendices

Appendix A    Construction Programme

Appendix B    Project Organization Chart

Appendix C    Action and Limit Levels

Appendix D   Graphical Presentation of Monitoring Data

Appendix E    Event and Action Plan

Appendix F    Waste Flow Table

Appendix G   Implementation Status of Environmental Mitigation Measures

Appendix H    Cumulative statistics on Environmental Complaints, Notifications of Summons and Successful Prosecutions