1.
This is the 32nd 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 September 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 |
4th, 10th, 16th,
22nd and 28th September 2015 |
|
24-hr TSP Monitoring |
4th, 10th, 16th,
22nd and 28th September 2015 |
|
Noise Monitoring |
1st, 11th, 17th,
23rd and 29th September 2015 |
|
Water Quality Monitoring |
2nd, 4th, 7th, 9th,
11th, 14th, 16th, 18th, 21st,
23rd, 25th, 28th and 30th September
2015 |
|
7th and 10th September 2015 |
|
|
Additional Land-based
Dolphin Behaviour and Movement Monitoring |
4th and 23rd September 2015 |
|
Environmental Site
Inspection |
1st, 8th, 15th, 22nd
and 30th September 2015 |
|
Archaeological Site
Inspection |
21st
September 2015 |
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 |
3 |
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 three 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, 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) and sediment plume due to natural fluctuation of shallow water were
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
Ÿ
Fabrication of lifting frames
Ÿ
Deliveries of frame structures
WA7
Ÿ
Fabrication of cofferdam frame structures
Ÿ
Maintenance of Reverse Circulation Drill (RCD) equipment
Marine
Viaduct (P0 to P80)
Ÿ
Inter-face coring tests
Ÿ
Full depth coring test
Ÿ
Sonic test
Ÿ
Grouting work
Ÿ
Casing installation
Ÿ
Installation of sheetpiles
on cofferdam
Ÿ
RCD excavation
Pile
Cap Construction
Ÿ
Installation of precast cap shells
Ÿ
Concreting
Ÿ
Kingpost installation and associated steel
welding works
Ÿ
Concreting trimming
Ÿ
Rock excavation
Ÿ
Steel Fixing works of pile cap
Works
with Cofferdam
Ÿ
Installation of waling strut
Ÿ
Installation of sheet pile
Ÿ
Installation of temporary working platform
Ÿ
Installation of shear pin
Ÿ
Installation of bored pile casing
Ÿ
Excavation works and casting of concrete plug
Ÿ
Dewatering works and sealing works
Ÿ
Additional welding
Column
Construction
Ÿ
Lifting works
Ÿ
Lift concreting
Ÿ
Pier head works
Ÿ
Pier head concreting
Precast
Column Erection
Ÿ
Installation of base units and precast units
Ÿ
Stressing of vertical nailing tendons
Deck
Erection
Ÿ
Setting up of equipment
Ÿ
Segment erection
Precast
Segment
Ÿ
Segment casting
Land
Viaduct (P81 to Abutment at Scenic Hill Tunnel (SHT))
Ÿ
ELS excavation
Ÿ
excavation works and waling installation
Ÿ
Pile cap work
Ÿ
Falsework erection
Ÿ
soffit formwork
Ÿ
Removal of steel bracket system
Ÿ
Steel fixing
Ÿ
Concreting
Ÿ
Removal of formwork
Ÿ
Casting of Portal
Ÿ
Erection of steel bracket system