EXECUTIVE SUMMARY

Introduction

1.              This is the 41st 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 June 2016.

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

6th, 10th, 16th, 22nd and 28th June 2016

24-hr TSP Monitoring

6th, 10th, 16th, 22nd and 28th June 2016

Noise Monitoring

1st, 7th, 17th, 23rd and 29th June 2016

Water Quality Monitoring

1st, 3rd, 6th, 8th, 10th, 13th, 15th, 17th, 20th, 22nd, 24th, 27th and 29th June 2016

Dolphin Monitoring (Line-transect Vessel Surveys)

8th and 20th June 2016

Additional Land-based Dolphin Behaviour and Movement Monitoring

2nd  and 16th June 2016

Environmental Site Inspection

7th, 14th, 21th and 28th June 2016

Archaeological Site Inspection

28th June 2016

 

 

 


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

Total No. of Exceedance

No. of Exceedance related to the Construction Activities of this Contract

Total 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

0

0

24-hr TSP

0

0

0

0

0

0

Noise

Leq(30min)

0

0

0

0

0

0

Water Quality

Dissolved Oxygen (DO) (Surface & Middle)

0

0

0

0

0

0

Dissolved Oxygen (DO) (Bottom)

3

0

3

0

0

0

Turbidity

0

0

0

0

0

0

Suspended Solids (SS)

0

0

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 are three Action Level and no Limit Level exceedances were recorded for dissolved oxygen (bottom depth). No Action/Limit Level exceedance for dissolved oxygen (surface and middle depth), turbidity and suspended solids were recorded.

8.              According to the investigation, the exceedances are considered not due to the Contract due to the following reasons:

1)      No pollution discharge was observed from the site; and

2)      Control Station value already exceeded either the Baseline Action or Limit Levels.

Complaint Log

 

9.              No 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   Cross Beam Precast Shell construction

 

Ancillary and Associated Facilities

Ÿ   E&M installation

Ÿ   E&M ducting installation

Ÿ   Installation of precast parapets

Ÿ   Construction of median and side barriers

Ÿ   Construction of sign gantry footing

 

Marine Viaduct (P0 to P80)

Precast Column Erection

Ÿ   Vertical Tendons Stressed

Ÿ   Grouting Vertical Tendons

Ÿ   Pier Head Concrete

Double Blade Column

Ÿ   Pier head construction

 

Deck Erection

Ÿ   Segment erection

Ÿ   Erection of SOP segments, movement joint, in-situ RC works

Radar platform erection

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

Ÿ   Removal of filled platform

Ÿ   Reinstatement of slope area and drainage

Ÿ   Construction of longitudinal stitching