1.
This is the 60th 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 January 2018.
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 |
5th, 11th,
17th, 23rd and 29th January 2018 |
|
24-hr
TSP Monitoring |
5th, 11th,
17th, 23rd and 29th January 2018 |
|
Noise
Monitoring |
6th,
12th, 18th, 24th and 30th January
2018 |
|
Water
Quality Monitoring |
2nd,
4th, 6th, 8th, 10th, 12th,
15th, 17th, 19th, 22nd, 24th,
26th, 29th and 31st January 2018 |
|
3rd and 23rd
January 2018 |
|
|
Environmental
Site Inspection |
2nd, 9th,
16th, 23rd and 30th January 2018 |
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 |
Total
No. of Exceedance |
No. of Exceedance related to the Construction Activities of this Contract |
Total No. of Exceedance related to the Construction Activities of this Contract |
||
|
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
||||
|
Air Quality |
1-hr TSP |
2 |
0 |
2 |
0 |
0 |
0 |
|
24-hr TSP |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Noise |
Leq(30min) |
0 |
0 |
0 |
0 |
0 |
0 |
|
Water Quality |
Dissolved Oxygen (DO)
(Surface & Middle) |
0 |
0 |
0 |
0 |
0 |
0 |
|
Dissolved Oxygen (DO)
(Bottom) |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Turbidity |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Suspended Solids (SS) |
1 |
0 |
1 |
0 |
0 |
0 |
|
1-hour
TSP Monitoring
4.
All 1-hour TSP monitoring was conducted as scheduled in the reporting
month. Two Action Level and no Limit Level exceedances were recorded.
5.
According to the investigation, the exceedances are considered not due
to the Contract due to the following reasons:
1)
No observable dust source from construction activity was observed;
2)
High Air Quality Health Index (AQHI) according to EPD (AQHI recorded at
EPD’s Air Quality Monitoring Station in Tung Chung during the 1-hr TSP
monitoring (8:32-14:20) on 17 January 2018 at AMS1 was ranged from (6 to 10+).
The AQHI was recorded with increasing scale from moderate to serious during the
monitoring period which was the dominating factor to the high TSP result;
3)
Dismantling and retrieving metal casing supports of the temporary
platform with insignificant air quality impacts were conducted at P69-70 which
is the nearest site to the monitoring station (AMS1) under Contract No.
HY/2011/09 on 17 January 2018 during the monitoring period (8:32-14:20), and no
exceedance for the 1st 1-hr TSP (08:32-09:32) was recorded.
24-hour
TSP Monitoring
6.
All 24-hour TSP monitoring was conducted as scheduled in the reporting
month. No Action/Limit Level exceedances were 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 is one Action Level
and no Limit Level exceedances were recorded for suspended solids. No
Action/Limit Level exceedance for dissolved oxygen and turbidity were recorded.
9.
According to the investigation, the exceedances are considered not due
to the Contract due to the following reasons:
1)
No pollution discharge from construction activity was observed;
2)
The exceeded results were similar or within the ranges baseline
monitoring results;
3)
Sediment plume due to natural fluctuation of shallow water was observed;
4)
Localized sediment plume due to the rough water condition was observed.
Complaint Log
10.
No 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
·
Operation of Asphalt Plant
Ancillary
and Associated Facilities
·
Breaking off the concrete footings for
reinstatement of slope underneath the deck
·
Reinstatement of sloping seawall
·
Installation of precast parapet facial panel
·
Construction of median and side barriers
·
Construction of longitudinal stitching
·
Sealing of deck openings and preparation deck surface
for waterproofing
·
Installation of fire hydrants and fire main
·
Installation of utility trough covers
·
Erection of sign gantry
·
Installation of the additional pier number and
information signs
·
Installation of the headroom sign and vessel
length restriction sign
·
Installation of the height restriction sign
·
Site clearance / formation work to
reinstatement of SPR
·
Construction of concrete carriageway for Chek Lap Kok South Road
realignment*
·
Installation of carrier drains
·
Installation of watermain
·
Laying of asphalt pavement
·
Fill slope and road works for Chek Lap Kok South Road
realignment*
Note:
*Minor Modification Works:-
·Shifting the bus stop location;
·Shifting the old alignment near P109 southward; and
·Re-instating the underground drainage with the new alignment
due to the minor modification works above.
E&M
Works
·
E&M ducting installation
·
E&M works inside SHT building
·
Street light cables and poles installation
·
Cable hanger installation
·
LV and HV cable laying works
·
Cable tray installation of SMS system
·
Cable laying works for HKPF
·
GPS pole installation
·
Installation of electrical sliding barrier
·
Installation of pile cap lighting
·
Installation of radar at radar platform
Removal
of Temporary works at P68 - P70
·
Jetty Dismantling works at P69 and 70
·
Removal of temporary platform at P68
Deck
Erection
·
Movement joints installation
Turnaround
Facilities
·
Casting of roof finishing and ground level
finish of mobile telecom equipment room
·
Apply waterproof membrane for mobile telecom
equipment room
·
Dismantling of sling platform, box girder
support tower and extended platform
·
Installation of Type K1 Kerb
for traffic island
·
Parapet installation
10m at P0
·
Construction of central barrier and side
barriers
·
Construction of the utility trough