1.
This is the 11th 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 December
2013.
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 |
4th, 10th,
16th, 21st and 27th December 2013 |
|
24-hr TSP Monitoring |
4th, 10th,
16th, 21st and 27th December 2013 |
|
Noise Monitoring |
5th, 11th
, 17th , 23rd
and 30th December 2013 |
|
Water Quality Monitoring |
2nd, 4th,
6th, 9th, 11th, 13th, 16th,
18th, 20th, 24th, 26th , 28th
and 30th December 2013 |
|
3rd and 20th
December 2013 |
|
|
Additional Land-based Dolphin Behaviour
and Movement Monitoring |
(1) N/A |
|
Environmental Site Inspection |
3rd, 10th,
17th , 24th and 31st December 2013 |
|
Archaeological Site Inspection |
30th December 2013 |
Remark:
(1) In view of the construction activities have no significant
change in the reporting month, the additional land-based dolphin behavior and
movement monitoring was not conducted in December 2013. The review report for Land-based
Dolphin Behaviour and Movement Monitoring has been
submitted to DCVJV on 7 January 2014.
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 |
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 |
2 |
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 |
4 |
6 |
0 |
0 |
|
|
Suspended Solids (SS) |
24 |
12 |
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 Limit Level exceedance
was recorded. Two Action Level exceedances for 24-hr
TSP monitoring at AMS1were recorded on 10 and 27 December 2013.
6.
According to the investigation, no dust generation works was conducted
at near the monitoring station during the monitoring and observable dust source
from construction activity under Contract No. HY/2011/09. In addition, construction
works from other site and stockpile of dusty materials without proper cover at near
the monitoring station was observed. Therefore, the exceedance
is considered not due to the Contract.
Construction Noise
7.
All construction noise monitoring was conducted as scheduled in the
reporting month. No Action/Limit Level exceedance was
recorded.
Water Quality
8.
All water quality monitoring was conducted as scheduled in the reporting
month. There are twenty-four Action Level and twelve Limit Level exceedances for suspended solids were recorded. In addition,
there are four Action Level and six Limit Level exceedances
for turbidity were recorded.
9.
According to the investigation, no pollution discharge was observed from
the site. In addition, sediment plume discharging to the monitoring stations
from the area outside the site boundary and localized plume in the monitoring
area were observed. Therefore,
the exceedances are considered not due to the
Contract.
Complaint Log
10.
No environmental complaint was received in the reporting month.
Notification of Summons and Successful Prosecutions
11.
No notification of summons and successful prosecution was received in
the reporting month.
12.
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).
13.
Major site activities for
the coming reporting month will include:
WA4
Ÿ Fabrication
of rebar cages
Ÿ Fabrication
of temporary piling platforms
WA7
Ÿ Fabrication
of rebar cages
Ÿ Loading and
Unloading of rebar materials
Marine
Viaduct (P0 to P84)
Ÿ Piling
works for the temporary jetty
Ÿ Installation
of temporary casings, jackets, temporary piles, platform and permanent casings
Ÿ Dismantling
of jacket
Ÿ Pile
excavation by Reverse Circulation Drill (RCD) method
Ÿ Pile
excavation by Kelly method
Ÿ Inter-face
Coring Test and Sonic Test
Ÿ Predrilling works
Ÿ Operation
of floating concrete batching plants
Ÿ Erection of
temporary supports for receiving the precast shells
Land
Viaduct (P85 to P114)
Ÿ Land piling
and concreting works
Ÿ Construction
of ingress and egresses
Ÿ Drainage
and water main diversion
Ÿ Tree
felling/transplant work
Ÿ Excavation
works and Earth Lateral Support (ELS)
Ÿ Pile cap
and column construction
Ÿ Predrilling works