1.
This is the 55th 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 August
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 |
2nd, 8th,
14th, 18th, 24th(AMS4), 25th(AMS1)
and 30th August 2017 |
|
24-hr
TSP Monitoring |
2nd, 8th,
14th, 18th, 24th(AMS4), 25th(AMS1)
and 30th August 2017 |
|
Noise
Monitoring |
9th,
15th, 25th and 31st August 2017 |
|
Water
Quality Monitoring |
2nd, 4th,
7th, 9th, 11th, 14th, 16th,
18th, 21st, 24th, 26th, 28th
and 30th August 2017 |
|
8th and 14th
August 2017 |
|
|
Environmental
Site Inspection |
1st, 8th,
15th, 22nd and 29th August 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) |
6 |
1 |
7 |
0 |
0 |
0 |
|
|
Dolphin Monitoring |
Quarterly Analysis (June
to August 2017) |
1 |
0 |
1 |
under investigation |
||
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 six 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)
Sediment plume due to natural fluctuation of shallow water was observed;
4)
Localized sediment plume due to the rough water condition was observed;
5)
Adverse water quality outside the site boundary was observed while no
pollution source from this Contract was observed and no construction vessel for
this Contract was travelling nearby. Dispersion of sediment plume to the
monitoring stations from the area outside the site boundary (i.e. works area
not under and related to HY/2011/09) was also 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
·
Establishment for Asphalt Plant
Ancillary
and Associated Facilities
·
Sealing of deck openings and preparation deck
surface for waterproofing
·
Waterproofing and asphalt laying
·
Watermain
installation
·
Installation of carrier drains
·
Installation of precast parapet skins
·
Construction of median and side barriers
·
Construction of longitudinal stitching
·
Erection of sign gantry
·
Reinstatement of slope area and drainage works
·
Reinstatement of sloping seawall
·
CLK South Road realignment
·
Laying of asphalt pavement
·
Sealing of gantry crane loading opening
E&M
Works
·
E&M installation
·
E&M ducting installation
·
E&M works inside SHT building
·
Street light cables and poles installation
·
Cable hanger installation
·
Construction of Load Centre
·
Pillar box installation
·
Installation for TCSS’s CCTV high mast
·
Installation for HKPF’s high mast
·
Installation for C&ED’s high mast
Marine
Viaduct (P0 to P80)
Deck
Erection
·
Segment erection
·
Dismantling the remaining LF3
External
Prestressing Tendon Installation
Internal
Prestressing Grouting
Turnaround
Facilities
·
Steel fixing for longitudinal stitch between
box girders
·
Strands installation and stressing for
extended platforms
·
strands installation for stressing
·
Casting of stitches between I-beams and box
girder
·
Strands installation for I-beams
·
Assembly of Megashor
tower for corner beams
·
Erect 4 number of Corner Beams