1.
This is the 10th 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 November
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 |
6th, 12th,
18th, 22nd and 28th November 2013 |
24-hr TSP Monitoring |
6th, 12th,
18th, 22nd and 28th November 2013 |
Noise Monitoring |
7th, 13th
, 19th and 25th
November 2013 |
Water Quality Monitoring |
1st, 4th,
6th, 8th, 11th, 13th, 15th,
18th, 20th, 22nd, 26th , 28th
and 30th November 2013 |
6th and 15th
November 2013 |
|
Additional Land-based Dolphin Behaviour
and Movement Monitoring |
(1) N/A |
Environmental Site Inspection |
5th, 12th,
19th and 29th
November 2013 |
Archaeological Site Inspection |
(2)N/A |
Remark:
(1) The additional land-based dolphin behavior and movement
monitoring was not conducted in the reporting month. In view of the
construction activities have no significant change in the two months, the
monitoring in November and December 2013 will be considered/reviewed
in the monthly EM&A report for December 2013.
(2) No archaeological site inspection was conducted
in the reporting month.
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 |
1 |
0 |
0 |
24-hr TSP |
0 |
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 |
0 |
0 |
0 |
0 |
|
Suspended Solids (SS) |
7 |
6 |
0 |
0 |
1-hour TSP Monitoring
4.
All 1-hour TSP monitoring was conducted as scheduled in the reporting month. No Action Level exceedance
was recorded. One Limit Level exceedance was recorded
on 18 November 2013.
5.
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 was observed. Therefore, the exceedance
is considered not due to the Contract.
24-hour TSP Monitoring
6.
All 24-hour TSP monitoring was conducted as scheduled in the reporting month. No Action/Limit Level exceedance was recorded.
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 seven Action Level and six Limit Level exceedances
for suspended solids were recorded.
9.
According to the investigation, no pollution discharge was observed from
the site. In addition, sediment plume due to natural fluctuation of shallow
water and localized plume in the monitoring area were observed. Water quality
mitigation measures such as casting and silt curtain were also properly
implemented. Therefore,
the exceedances are considered not due to the
Contract.
Complaint Log
10.
One 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
Fabrication
of rebar cages
Fabrication
of temporary piling platforms
WA7
Fabrication
of rebar cages
Loading and
Unloading of rebar materials
Marine
Viaduct (P0 to P84)
Piling
works for the temporary jetty
Beams and
deck installation for jetty
Installation
of temporary casings, jackets and permanent casings
Dismantling
of jacket
Pile
excavation by Reverse Circulation Drill (RCD) method
Pile
excavation by Kelly method
Inter-face
Coring Test and Sonic Test
Installation
of temporary piles, platform and permanent casing
Predrilling works
Operation
of floating concrete batching plants
Casting of
precast shell for pile cap
Land
Viaduct (P85 to P114)
Land piling
and concreting works
Formation
of piling platform along seawall
Kicker pour
for column
Rebar
threading for coupler
Marine
landing access establishment work
Construction
of ingress and egresses
Trial
trenches for pile cap
Drainage
and water main diversion
Tree
felling/transplant work
Pile head
excavation / trimming
Pile cap
and column construction
Predrilling works
Construction
of cofferdam for pilcaps