EXECUTIVE SUMMARY

Introduction

1. This is the 23^rd monthly Environmental Monitoring and Audit (EM&A) Report prepared by Cinotech Consultants Limited for the project “Contract No. HY/2011/09 – Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between HKSAR Boundary and Scenic Hill” (hereinafter called the “Contract”). This report documents the findings of EM&A Works conducted in December 2014.

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	1^st, 5^th, 11^th, 17^th, 23^rd and 29^th December 2014.
24-hr TSP Monitoring	1^st, 5^th, 11^th, 17^th, 23^rd and 29^th December 2014.
Noise Monitoring	2^nd , 8^th, 18^th, 24^th and 30^th December 2014
Water Quality Monitoring	1^st, 3^rd, 5^th, 8^th, 10^th, 12^th, 15^th, 17^th , 20^th, 22^nd, 24^th, 27^th, 29^th and 31^st December 2014
Dolphin Monitoring (Line-transect Vessel Surveys)	3^rd and 10^th December 2014
Additional Land-based Dolphin Behaviour and Movement Monitoring	5^th and 18^th December 2014
Environmental Site Inspection	2^nd, 9^th, 16^th, 23^rd and 30^th December 2014
Archaeological Site Inspection	30^th December 2014

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	1	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 are one Action Level and one Limit Level exceedances for suspended solids were recorded. No Action/Limit Level exceedance for dissolved oxygen and turbidity were recorded.

8. According to the investigation, the exceedances are considered not due to the Contract as sediment plume discharging to the monitoring stations from the area outside the site boundary was observed and the exceeded result was within the ranges baseline monitoring results.

Complaint Log

9. Three environmental complaints were 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 Fabrication of temporary piling platforms

WA7

Ÿ Fabrication of rebar cages

Ÿ Loading and Unloading of rebar materials

Marine Viaduct (P0 to P80)

Reverse Circulation Drill (RCD) Method:

Ÿ Excavation works and concreting of piles

Ÿ Interface core, sonic testing and grouting works for piling works

Kelly Method:

Ÿ Piling platform removal and temporary pile extraction

Ÿ Interface coring, sonic testing and grouting works

Pile Cap, Column and Portal Construction:

Ÿ Pile cap construction

Ÿ Pier stem and pier head construction

Ÿ Precast column erection

Ÿ Preparation works for Segments on Pier (SOP) installation

Ÿ Construction of double blade column

Ÿ Commence falsework of the Portal

Ÿ Commence construction of Portal

Deck Erection:

Ÿ Complete stitch concrete works

Land Viaduct (P85 to Abutment at SHT) & Marine Viaduct (P81 - P84)

Ÿ Piling works

Ÿ Pre-bored for sheet pile for cofferdam construction

Ÿ Pile head excavation / trimming

Ÿ Column construction

Ÿ Backfilling and remove ELS

Ÿ Portals construction works

Ÿ Dismantling of falsework system for Portals

Ÿ Erection of steel bracket and falsework system for Portals

Ÿ Installation of temporary jacks and nailing and removal of falsework system