EXECUTIVE SUMMARY

Introduction

1. This is the 3^rd monthly Environmental Monitoring and Audit (EM&A) Report prepared by Cinotech Consultants Limited for the project ¡§Contract No. HY/2011/09 ¡V Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V Section between HKSAR Boundary and Scenic Hill¡¨ (hereinafter called the ¡§Contract¡¨). This report documents the findings of EM&A Works conducted in April 2013.

Environmental Monitoring and Audit Progress

2. A summary of the monitoring activities in this reporting month is listed in Table I below:

Table I Summary Table for Monitoring Activities in the Reporting Month

Parameter(s)	Date(s)
1-hr TSP Monitoring	2^nd, 8^th, 12^th, 18^th, 24^th and 30^th April 2013
24-hr TSP Monitoring	2^nd, 8^th, 12^th, 18^th, 24^th and 30^th April 2013
Noise Monitoring	3^rd, 9^th, 15^th and 25^th April 2013
Water Quality Monitoring	1^st, 3^rd, 5^th, 8^th, 10^th, 12^th, 15^th, 17^th, 19^th, 22^th, 24^th, 26^th and 29^th April 2013
Dolphin Monitoring (Line-transect Vessel Surveys)	9^th and 17^th April 2013
^(1)Construction-phase underwater Noise Monitoring	With Bored Piling Activities: 2^nd, 3^rd, 5^th, 8^th, 9^th, 10^th, 25^th, 26^th, 27^th, 29^th and 30^th April 2013 Without Bored Piling Activities: 11^th April 2013
^(1)Dolphin Behaviour Monitoring	With Bored Piling Activities: 1^st, 2^nd, 3^rd, 5^th, 7^th, 8^th, 10^th and 11^th April 2013
^(1)Land-based Dolphin Behaviour and Movement Monitoring	With Bored Piling Activities: 1^st, 2^nd, 4^th, 5^th, 7^th, 8^th, 9^th, 10^th and 11^th April 2013
Environmental Site Inspection	2^nd, 9^th, 16^th, 26^th and 30^th April 2013
Archaeological Site Inspection	^(2)N/A

Remark: ^(1)Dolphin-related monitoring was conducted in the reporting month. According to the EM&A Manual for HKLR, the dolphin-related monitoring was conducted during the bored piling activities (e.g. installation of permanent casting for bored piling activities) which presented in Appendix A. The dolphin-related monitoring conducted without bored piling activities are for reference only.

⁽²⁾ No archaeological site inspection was conducted in the reporting month.

Breaches of Action and Limit Levels

3. Summary of the environmental exceedances of the reporting month is tabulated in Table II.

Table II Summary Table for Events Recorded in the Reporting Month

Environmental Monitoring	Parameter	No. of Exceedance		No. of Exceedance related to the Construction Activities of this Contract
		Action Level	Limit Level	Action Level	Limit Level
Air Quality	1-hr TSP	0	0	0	0
	24-hr TSP	0	0	0	0
Noise	Leq(30min)	0	0	0	0
Water Quality	Dissolved Oxygen (DO) (Surface & Middle)	0	0	0	0
	Dissolved Oxygen (DO) (Bottom)	0	0	0	0
	Turbidity	0	0	0	0
	Suspended Solids (SS)	1	0	0	0
Undewater Noise	RMS sound pressure level re 1µPa	0	0	0	0

1-hour TSP Monitoring

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

24-hour TSP Monitoring

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

Construction Noise

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

Water Quality

7. All water quality monitoring was conducted as scheduled in the reporting month. There is one Action Level exceedance for suspended solids were recorded.

8. According to the investigation, no pollution discharge from the marine works and sediment plume due to natural fluctuation of shallow water was observed. Therefore, all exceedances are considered not due to the Contract.

Complaint Log

9. One environmental complaint was received in the reporting month.

Notification of Summons and Successful Prosecutions

10. No notification of summons and successful prosecution was received in the reporting month.

Reporting Changes

11. This report has been developed in compliance with the reporting requirements for the subsequent monthly EM&A Report as required by the EM&A Manual for Hong Kong Link Road (EM&A Manual).

Future Key Issues

12. Major site activities for the coming reporting month will include:

WA4

Ÿ Fabrication of rebar cages

Ÿ Loading and unloading

Ÿ Setup of casting yard

WA7

Ÿ Preparation for bored piling

Ÿ Fabrication of rebar cages

Ÿ Loading and Unloading

Portion A (Land Section)

Ÿ Site clearance and formation

Ÿ Timber Scaffolding

Ÿ Pre-drilling work

Ÿ Set-up facilities for marine delivery of concrete from land plants

Ÿ Slewing of the tele-communication & AA COM cables

Portion C

Ÿ Erection of hoarding & fencing

Ÿ Pre-drilling work

Ÿ Protection work to the fuel pipes

Ÿ Backfilling works

Ÿ Fabrication of reinforcement cage and piling jacket, setting up for land piling work

Western Water

Ÿ Pre-drilling Work

Ÿ Loading and Unloading

Ÿ Setting up of silt-curtain

Ÿ Platform installation for pre-drilling works

Ÿ Installation of temporary casings for the piling platform

Ÿ Installation of permanent casing

Ÿ Bored piling works