1.
This is the 63rd 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 April 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 |
6th, 12th,
18th, 24th and 30th April 2018 |
24-hr
TSP Monitoring |
6th, 12th,
18th, 24th and 30th April 2018 |
Noise
Monitoring |
4th,
13th, 19th and 25th April 2018 |
Water
Quality Monitoring |
2nd,
4th, 6th, 10th, 12th, 14th,
16th, 18th, 20th, 23rd, 26th,
28th and 30th April 2018 |
6th and 13th
April 2018 |
|
Environmental
Site Inspection |
3rd, 10th,
17th and 24th March 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 |
0 |
0 |
0 |
0 |
0 |
0 |
24-hr TSP |
1 |
0 |
1 |
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) |
4 |
0 |
4 |
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 exceedances were recorded.
24-hour
TSP Monitoring
5.
All 24-hour TSP monitoring was conducted as scheduled in the reporting
month. There is one Action Level exceedance was recorded.
6.
According to the investigation, the exceedances are considered not due
to the Contract due to the following reasons:
1)
No dust generation construction works was conducted at near the
monitoring station during monitoring; and
2)
No observable dust source from construction activity was observed.
Construction Noise
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 no Limit Level exceedances were recorded for suspended solids. No
Action/Limit Level exceedance for dissolved oxygen and turbidity were recorded.
8.
According to the investigation, the exceedances are considered not due
to the Contract due to the following reasons:
1)
No major marine construction activity was conducted;
2)
No pollution discharge from construction activity was observed;
3)
Sediment plume due to natural fluctuation of shallow water was observed;
and
4) 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.
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:
Western Water
¡P
Installation of cat ladders at pile cap walls;
¡P
Dismantling NSS access platforms; and
¡P
Installation of permanent maintenance
platforms.
P68
¡P
Construction of permanent rockfill platform
Portion
A
¡P
Construction of the sloping seawall; and
¡P
Reinstatement of South Perimeter Road (P81 ¡V
P83)