EXECUTIVE SUMMARY

Introduction

1. This is the 4^th Environmental Monitoring and Audit (EM&A) Report prepared by Cinotech Consultants Limited for the ¡§Drainage Improvement in Northern Hong Kong Island ¡V Hong Kong West Drainage Tunnel¡¨ (the Project). This report documents the findings of EM&A Works conducted in July 2008.

2. The site activities undertaken in the reporting month included:

• Further establishment of project organization and staffing;
• Boulder stabilization, initial tunnel excavation and installation of temporary facilities at Eastern Portal;
• Erection of SOR¡¦s Site Offices, installation of temporary facilities, slope works, ELS works, marine works and horizontal pipe piling works at Western Portal;
• Utilities trial pits and additional ground investigation works at Intakes E7, DG1, MB16 and M3;
• Approved in Principle (AIP) & Detailed Design Approval (DDA) submissions for temporary works at both portals and Intake W0;
• DDA submission for permanent works for Main Tunnel Precast Segmental Lining;
• Environmental impact monitoring; and
• TBM design and fabrication overseas.

Environmental Monitoring Works

3. Environmental monitoring for the Project was performed in accordance with the updated EM&A Manual and the monitoring results were checked and reviewed. Site audits were conducted once per week. The implementation of the environmental mitigation measures, Event Action Plans and environmental complaint handling procedures were also checked.

4. Summary of the non-compliance of the reporting month is tabulated in Table I.

Table I Summary Table for Non-compliance Recorded in the Reporting Month

Parameter	No. of Exceedance		No. of Exceedance Due to the Project		Action Taken
	Action Level	Limit Level	Action Level	Limit Level
Eastern Portal
1-hr TSP	0	0	0	0	N/A
24-hr TSP	0	0	0	0	N/A
Noise	0	0	0	0	N/A
Western Portal
1-hr TSP	0	0	0	0	N/A
24-hr TSP	0	0	0	0	N/A
Noise	0	0	0	0	N/A
Water	0	0	0	0	N/A

Eastern Portal

1-hour TSP Monitoring

5. All 1-hour TSP monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

24-hour TSP Monitoring

6. All 24-hour TSP monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

Construction Noise

7. All construction noise monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

Western Portal

1-hour TSP Monitoring

8. All 1-hour TSP monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

24-hour TSP Monitoring

9. All 24-hour TSP monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

Construction Noise

10. All construction noise monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

Water Quality

11. All water quality monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.

Environmental Licenses and Permits

12. Licenses/Permits granted to the Project include the Environmental Permit (EP) for the Project, An Environmental Permit No. EP-272/2007 was issued on 26 April 2007 and Environmental Permit No. EP-272/2007/A was issue on 26 October 2007. Later, the further Environmental Permit (FEP-01/272/2007/A) was issued on 28 January 2008 to Dragages-Nishimatsu Joint Venture as the Permit Holder.

13. Registration of Chemical Waste Producer (License: 5213-148-D2393-02 for Eastern Portal and No. 5213-172-D2393-01 for Western Portal), Water Discharge License (License No.: EP860/W10/XY0175 for Area of Mount Butler Office, EP860/W10/XY0177 for Eastern Portal and EP820/W9/XT086 for Western Portal) and Construction Noise Permit (License No.: GW-RS0114-08 for Eastern Portal and GW-RS0363-08 for Western Portal)

Key Information in the Reporting Month

14. Summary of key information in the reporting month is tabulated in Table II.

Table II Summary Table for Key Information in the Reporting Month

Event	Event Details		Action Taken	Status	Remark
	Number	Nature
Complaint received	1	Noise	Complaint investigation	Investigation report was submitted	Under reviewed by IEC
Changes to the assumptions and key construction / operation activities recorded	0	---	N/A	N/A	---
Status of submissions under EP	2	Baseline Environmental Monitoring Report_v.4.0 (for Western Portal)	Submitted to EPD on 8 July 2008 (EP condition 3.2)	No comment from EPD	---
		Monthly EM&A Report (June 08)	Submitted to EPD on 10 July 2008 (EP condition 3.3)	Verified by IEC
Notifications of any summons & prosecutions received	0	---	N/A	N/A	---
Future Key Issues:
Major site activities for the coming month include: Tunnel excavation works at Eastern Portal; Slope works, ELS works, marine works and horizontal pipe piling works at Western Portal; and Utilities trial pits and additional ground investigation works at 19 nos. Intake sites.