1.
This is the 31st
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 August
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 |
3rd, 7th,
13th, 19th, 25th and 31st August 2015 |
24-hr TSP Monitoring |
3rd, 7th,
13th, 19th, 25th and 31st August
2015 |
Noise Monitoring |
4th, 14th,
20th and 26th August 2015 |
Water Quality Monitoring |
3rd, 5th,
7th, 10th, 12th, 14th, 17th,
19th, 21st, 24th, 26th, 28th
and 31st August 2015 |
18th and
26th August 2015 |
|
Additional Land-based Dolphin Behaviour and
Movement Monitoring |
13th and 21st August 2015 |
Environmental Site Inspection |
4th, 11th,
18th and 25th August 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) |
1 |
0 |
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 one Action
Level and no 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, sediment plume
due to natural fluctuation of shallow water 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
Segment erection
Precast
Segment
Segment casting
Land
Viaduct (P81 to Abutment at Scenic Hill Tunnel (SHT))
ELS excavation
excavation works and waling installation
Pile cap work
Falsework erection
soffit formwork
Removal of steel bracket system
Steel fixing
Concreting
Removal of formwork
Casting of Portal
Erection of steel bracket system