1.
This is the 54th 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 July
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 |
5th, 11th,
17th, 21st and 27th July 2017 |
24-hr
TSP Monitoring |
5th, 11th,
17th, 21st and 27th July 2017 |
Noise
Monitoring |
6th,
12th, 19th, 24th and 31st July
2017 |
Water
Quality Monitoring |
3rd, 5th,
7th, 10th, 12th, 14th, 17th,
19th, 21st, 24th, 26th, 28th
and 31st July 2017 |
4th and 13th
July 2017 |
|
Environmental
Site Inspection |
4th, 11th,
18th and 25th July 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) |
13 |
9 |
0 |
0 |
0 |
0 |
Dissolved Oxygen (DO)
(Bottom) |
10 |
20 |
0 |
0 |
0 |
0 |
|
Turbidity |
0 |
0 |
0 |
0 |
0 |
0 |
|
Suspended Solids (SS) |
0 |
1 |
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 twenty three Action Level and twenty nine Limit Level exceedances
were recorded for dissolved oxygen. One Limit Level exceedance was recorded for
suspended solids and no Action/Limit Level exceedance for turbidity was
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)
Control Station value already exceeded either the Baseline Action or
Limit Levels.
3)
Monitoring station is situated at the upstream of the construction sites;
4)
Rough sea condition was recorded during the water quality monitoring.
The low dissolved oxygen results are considered due to the stirring up of
bottom sediments which cause the decomposition of organic matter by bacteria.
5)
Sediment plume due to natural fluctuation of shallow water was observed.
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
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 Load Centre
¡P
Pillar box installation
¡P
Installation for TCSS¡¦s CCTV high mast
¡P
Installation for HKPF¡¦s high mast
¡P
Installation for C&ED¡¦s high mast
Marine
Viaduct (P0 to P80)
Deck
Erection
¡P
Segment erection
¡P
Dismantling the remaining LF3
External
Prestressing Tendon Installation
Internal
Prestressing Grouting
Turnaround
Facilities
¡P
Steel fixing for longitudinal stitch between
box girders
¡P
Strands installation and stressing for
extended platforms
¡P
strands installation for stressing
¡P
Casting of stitches between I-beams and box
girder
¡P
Strands installation for I-beams
¡P
Assembly of Megashor
tower for corner beams
¡P
Erect 4 number of Corner Beams