1.
This is the 51st 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
2017.
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 |
3rd, 7th,
13th, 19th, 25th and 28th April
2017 |
24-hr
TSP Monitoring |
3rd, 7th,
13th, 19th, 25th and 28th April
2017 |
Noise
Monitoring |
5nd,
11th, 20th and 26th April 2017 |
Water
Quality Monitoring |
3rd, 6th,
8th, 10th, 12th, 14th, 18th,
20th, 22nd, 24th, 26th and 28th April 2017 |
5th and 13th
April 2017 |
|
Environmental
Site Inspection |
6th, 11th,
18th and 25th April 2017 |
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) |
0 |
0 |
0 |
0 |
0 |
0 |
|
Turbidity |
0 |
0 |
0 |
0 |
0 |
0 |
|
Suspended Solids (SS) |
4 |
1 |
5 |
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 four Action Level and one Limit Level exceedances were
recorded for suspended solids. 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 due to the following reasons:
1)
No pollution discharge from construction activity was observed;
2)
The exceeded results were similar or within the ranges baseline
monitoring results;
3)
Monitoring station is situated at the upstream of the construction sites;
4)
Adverse water quality outside the site boundary was observed while no
construction vessel for this Contract was travelling nearby.
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.
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).
12.
Major site activities for
the coming reporting month will include:
WA4
¡P
Establishment for Asphalt Plant
Ancillary
and Associated Facilities
¡P
Sealing of deck openings and preparation deck
surface for waterproofing
¡P
Waterproofing and asphalt laying
¡P
Watermain
installation
¡P
Installation of carrier drains
¡P
Installation of precast parapet skins
¡P
Construction of median and side barriers
¡P
Construction of longitudinal stitching
¡P
Erection of sign gantry
¡P
Reinstatement of slope area and drainage works
¡P
Reinstatement of sloping seawall
¡P
Fill slope for CLK South Road realignment
¡P
Laying of asphalt pavement
¡P
Sealing of gantry crane loading opening
E&M
Works
¡P
E&M installation
¡P
E&M ducting installation
¡P
E&M works inside SHT building
¡P
Street light cables and poles installation
¡P
Cable hanger installation
¡P
Construction of Lad Centre
Marine
Viaduct (P0 to P80)
Deck
Erection
¡P
Segment erection
External
Prestressing Tendon Installation
Internal
Prestressing Grouting
Turnaround
Facilities
¡P
Stitching works
¡P
Erection of I-beam supporting towers