EXECUTIVE SUMMARY

Introduction

1. This is the 2^nd 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 during the period between 29^th April and 31^st May 2008.

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

• Further establishment of project organization and staffing;
• Boulder stabilization, soil nailing and pipe roofing works and installation of temporary facilities at Eastern Portal;
• Erection of Contractor¡¦s & SOR¡¦s Site Offices, installation of temporary facilities, soil nailing and slope works at Western Portal;
• Renovation works for SOR Principal Office at Mount Butler Area;
• Approved in Principle (AIP) & Detailed Design Approval (DDA) submissions for temporary works at both portals;
• 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 approved 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
Noise	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 period. No Action/Limit Level exceedance was recorded.

24-hour TSP Monitoring

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

Construction Noise

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

24-hour TSP Monitoring

9. No 24-hour TSP monitoring was conducted in the reporting period.

Construction Noise

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

Environmental Licenses and Permits

11. 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.

12. Registration of Chemical Waste Producer (License: 5213-148-D2393-02 for Eastern Portal and No. 5213-172-D2393-01 for Western Portal) and Construction Noise Permit (License No.: GW-RS0114-08 for Eastern Portal and GW-RS0264-08 for Western Portal)

Key Information in the Reporting Month

13. 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	2	Noise	Complaint investigation	Investigation report was submitted	Closed
Changes to the assumptions and key construction / operation activities recorded	0	---	N/A	N/A	---
Status of submissions under EP	3	Baseline Environmental Monitoring Report_v.2.0 (for Eastern and Western Portal)	Submitted to EPD on 14 May 2008 (EP condition 3.2)	No comment from EPD	---
		Monthly EM&A Report (17^th April to 28^th April 08)	Submitted to EPD on 15 May 2008 (EP condition 3.3)	No comment from IEC
		Baseline Environmental Monitoring Report_v.3.0 (for Western Portal)	Submitted to EPD on 22 May 2008 (EP condition 3.2)	Received comment from EPD on 29 May 2008
Notifications of any summons & prosecutions received	0	---	N/A	N/A	---

Future Key Issues:

Major site activities for the coming month include:

Both Eastern and Western Portal

• Utilities diversion;
• Soil nail works;
• Pipe roofing works and installation of temporary facilities;
• Boulder stabilization and soil slope.

Only at Western Portal

• Marine works;
• Site investigation;
• Erection of SOR¡¦s Site office;
• Excavation for slope cutting;
• Shallow excavation and temporary support.