1.
This is the 30th 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
2015.
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, 10th, 16th,
22nd and 28th July 2015 |
24-hr TSP Monitoring |
6th, 10th, 16th,
22nd and 28th July 2015 |
Noise Monitoring |
7th, 17th, 23rd and
29th July 2015 |
Water Quality Monitoring |
2nd, 4th, 6th, 8th,
10th, 13th, 15th, 17th, 20th,
22nd, 24th, 27th, 29th and 31st
July 2015 |
6th and 28th July 2015 |
|
Additional Land-based
Dolphin Behaviour and Movement Monitoring |
6th and 16th July 2015 |
Environmental Site
Inspection |
7th, 14th, 21st and
28th July 2015 |
Archaeological Site
Inspection |
(1) N/A |
Remark:
(1) 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) |
4 |
6 |
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 four Action Level and six Limit Level exceedances for suspended
solids were recorded. No Action/Limit Level exceedance for dissolved oxygen and
turbidity were recorded.
8.
According to the investigation, no pollution discharge was observed from
the site. In addition, adverse water quality outside the site boundary and 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 observed. Therefore, the exceedances are considered not due
to the Contract.
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
Fabrication of lifting frames
Deliveries of frame structures
WA7
Fabrication of cofferdam frame structures
Maintenance of Reverse Circulation Drill (RCD)
equipment
Marine
Viaduct (P0 to P80)
Inter-face coring tests
Full depth coring test
Sonic test
Grouting work
Casing installation
Installation of sheetpiles
on cofferdam
RCD excavation
Pile
Cap Construction:
Installation of precast cap shells
Concreting
Kingpost installation and associated steel
welding works
Concreting trimming
Rock excavation
Steel Fixing works of pile cap
Works
with Cofferdam:
Installation of waling strut
Installation of sheet pile
Installation of temporary working platform
Installation of shear pin
Installation of bored pile casing
Excavation works and casting of concrete plug
Dewatering works and sealing works
Additional welding
Column
Construction:
Lifting works
Lift concreting
Pier head works
Pier head concreting
Precast
Column Erection
Installation of base units and precast units
Stressing of vertical nailing tendons
Deck
Erection
Setting up of equipment
Fabrication of Lifting Frames (LF)
Segment erection
Precast
Segment
Segment casting
Land
Viaduct (P81 to Abutment at Scenic Hill Tunnel (SHT))
Excavation works
ELS excavation
Pier head construction
Installation of steel bracket and girder
system
Removal of formwork & falsework
Erection of soffit formwork was completed,
formwork & falsework erection
Steel fixing
Nailing work and removal of formwork