1.
This is the 7th 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 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 |
1st, 7th,
13th, 19th, 23rd and 29th August
2013 |
|
24-hr TSP Monitoring |
1st, 7th,
13th, 19th, 23rd and 29th August
2013 |
|
Noise Monitoring |
8th, 15th
, 20th and 26th August 2013 |
|
Water Quality Monitoring |
3rd, 5th,
7th, 9th, 12th, 16th, 19th,
21st, 23rd, 26th, 28th and 31st August 2013 |
|
21st and 26th
August 2013 |
|
|
Construction-phase underwater Noise Monitoring |
(1)N/A |
|
Dolphin Behaviour
Monitoring |
(1)N/A |
|
Land-based Dolphin Behaviour
and Movement Monitoring |
(1)(2)N/A |
|
Environmental Site Inspection |
6th, 13th,
20th and 29th August 2013 |
|
Archaeological Site Inspection |
(3)N/A |
Remark:
(1)30days of construction-phase underwater noise monitoring, dolphin
behavior monitoring and land-based dolphin behavior and movement monitoring
have been completed in July 2013 according to EM&A Manual for HKLR. Results
analysis is being undertaken and the final results will be provided in a separate report in September 2013 tentatively.
(2)No additional Land-based Dolphin Behaviour and Movement Monitoring were conducted in August
2013 as the results analysis has not finished.
(3) 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 |
0 |
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) |
1 |
2 |
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 is one Action Level and two Limit Level exceedances
for suspended solids were recorded.
8.
According to the investigation, no pollution discharge from the marine
works. All exceedances are considered not due to the
Contract as sediment plume due to natural fluctuation of shallow water was
observed and water quality
mitigation measures such as casing and silt curtains were properly implemented.
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
Ÿ Fabrication
of rebar cages
Ÿ Fabrication
of temporary piling platforms
WA7
Ÿ Fabrication
of rebar cages
Ÿ Loading and
Unloading
Land
Viaduct (P85 to P114)
Ÿ Set up of
water treatment system
Ÿ Set up of
piling platforms
Ÿ Set up of
barriers
Ÿ Site
clearance
Ÿ Forming of
site access
Ÿ Marine
landing access establishment work
Ÿ Land piling
Ÿ Slewing the
tele-communication cable and AA’s COM cable
Ÿ Tree
felling/transplant
Ÿ Drainage and
water main diversion
Ÿ Pre-drilling
work
Marine
Viaduct (P0 to P84)
Ÿ Piling
works for temporary jetty
Ÿ Installation
of piling jacket
Ÿ Installation
of permanent casings
Ÿ Installation
of temporary casings
Ÿ Pile
excavation by Reverse Circulation Drilling (RCD)
method
Ÿ Pile
excavation by Kelly method
Ÿ Pre-drilling
Work
Ÿ Setting up
of silt-curtain
Ÿ Platform
installation for pre-drilling works and bored piling works