EXECUTIVE SUMMARY

Introduction

1.              This is the 23rd Quarterly 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 (Construction Phase) performed in the period between September and November 2018.

Environmental Monitoring and Audit Progress

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

Table I            Summary Table for Monitoring Activities in the Reporting Period

Parameter(s)

Monitoring Date(s)

1-hr TSP Monitoring

3rd, 7th, 13th, [1]19th, [1]20th, 24th and 28th September 2018

4th, 10th, 16th and 22nd October 2018

24-hr TSP Monitoring

3rd, 7th, 13th, [1]19th, [1]20th, 24th and [2]28th September 2018

[2]2nd, 4th, 10th, 16th and 22nd October 2018

Noise Monitoring

5th, 11th, 20th and 26th September 2018

5th, 11th, 18th and 23rd October 2018

Water Quality Monitoring

1st, 4th, 6th, 8th, 10th, [3]12th, 14th, [4]17th, 19th, 21st, 25th, 27th and 29th September 2018

[5]2nd, 4th, 6th, 8th, 10th, 12th, [5]15th, 18th, 20th and 23rd October 2018

Dolphin Monitoring (Line-transect Vessel Surveys)

5th and 11th September 2018

2nd and 9th October 2018

Post-construction Phase Dolphin Monitoring (Line-transect Vessel Surveys)

5th and 12th November 2018

Environmental Site Inspection

4th, 11th, 18th and 26th September 2018

2nd, 9th, 16th and 23rd October 2018

Archaeological Site Inspection

18th September 2018

[1] 1hr & 24 hr TSP at AMS1 on 19th September 2018 was cancelled due to the power supply and rescheduled to 20th September 2018.

[2] 24 hr TSP at AMS1 on 28th September 2018 was cancelled due to the power supply and rescheduled to 2 October 2018.

[3] Water quality monitoring (Mid-Ebb) on 12th September 2018 was cancelled due to adverse weather (Strong Wind Signal No.3)

[4] Water quality monitoring on 17th September 2018 was cancelled due to adverse weather (Strong Wind Signal No.3)

 [5] Water quality monitoring (Mid-Ebb) on 2nd and 15th October 2018 were cancelled due to safety reason. The reasons for no alternative include:

a) The tidal ranges of the alternative is less than 0.5m
b) Two sets of monitoring are not less than 36 hours

 

3.              Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road (HKLR) has been commissioned on 24 October 2018. As the Construction Phase EM&A Programme under HY/2011/09 have been terminated since 24th October 2018 as per EPD¡¦s letter to SOR (EPD¡¦s ref.: ¡§( ) in AX(2) to EP771/E1/099¡¨ dated 30 November 2018), no impact monitoring (air quality, construction noise, water quality and dolphin) and weekly site audit was carried out starting from 24 October 2018.

Breaches of Action and Limit Levels

4.              Summary of the environmental exceedances of the reporting period is tabulated in Table II.

Table II          Summary Table for Events Recorded in the Reporting Period

 

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)

2

0

0

0

Dolphin Monitoring

Line-transect Vessel Surveys

0

0

0

0

 

5.              Environmental monitoring works were performed in the reporting period and all monitoring results were checked and reviewed.  The details of each exceedance were attached in the Monthly EM&A Reports.

Complaint Log

 

6.              No environmental complaint was received in the reporting period.

Notification of Summons and Successful Prosecutions

 

7.              No notification of summons and successful prosecution was received in the reporting period.

 

Reporting Changes

 

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

Future Key Issues

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

Portion A

¡P             Reinstatement of South Perimeter Road (P81-P83)

 

Pier 115 & Pier 114 Interface Area

¡P             Reinstatement of Slope and drainage works