1.
This is the 2nd 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
March 2013.
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,
22nd and 27th March 2013 |
24-hr TSP
Monitoring |
6th, 12th, 18th,
22nd and 27th March 2013 |
Noise Monitoring |
1st, 7th, 13th,
19th, 23rd and 28th March 2013 |
Water Quality
Monitoring |
1st, 4th, 6th,
8th, 11th, 13th, 15th, 18th,
20th, 23rd, 25th, 27th and 29th
March 2013 |
8th and 22th March
2013 |
|
*Construction-phase
underwater Noise Monitoring |
With Bored Piling Activities: 18th, 19th, 20th,
21st, 22nd, 23rd, 25th, 27th,
28th March 2013 Without Bored Piling Activities: 13th, 14th, 15th
and 26th March 2013 |
*Dolphin Behaviour Monitoring |
With Bored Piling Activities: 18th, 19th, 20th,
21st, 22nd, 23rd, 25th, 27th,
28th and 29th March 2013 Without Bored Piling Activities: 6th, 7th, 8th,
9th, 11th to 17th, 24th and 30th
March 2013 |
*Land-based
Dolphin Behaviour and Movement Monitoring |
With Bored Piling Activities: 18th, 19th, 20th,
21st, 22nd, 23rd, 25th, 27th,
28th March 2013 Without Bored Piling Activities: 6th, 7th, 9th
to 17th, 24th and 30th March 2013 |
Environmental Site
Inspection |
5th, 12th, 19th
and 26th March 2013 |
Archaeological
Site Inspection |
25th March 2013 |
Remark: *Dolphin-related monitoring was conducted
in the reporting month. According to the EM&A Manual for HKLR, the dolphin-related
monitoring was conducted during the bored piling activities (e.g. installation
of permanent casting for bored piling activities) which presented in Appendix A. The dolphin-related monitoring conducted
without bored piling activities are for reference only.
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 |
23 |
75 |
0 |
0 |
|
Suspended Solids (SS) |
16 |
62 |
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 twenty-three
Action Level exceedances and seventy-five Limit Level
exceedances for turbidity were recorded. Sixteen
Action exceedances and sixty-two Limit Level exceedances for suspended solids were recorded.
8.
According to the investigation,
no major marine construction activities were conducted during the monitoring
period between 1 and 19 March 2013. No pollution discharge from the marine
works after 19 March 2013 (casing installation works) were observed. Therefore,
all 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). Action and Limit Levels for water quality monitoring works
was changed starting from 25 March 2013.
12.
Major site activities for the coming reporting month will include:
WA4
Preparation
for bored piling
Fabrication
of temporary piling platforms and rebar cages
Loading and
unloading
Setup of
casting yard
WA7
Preparation
for bored piling
Fabrication
of temporary piling platforms and rebar cages
Loading and
Unloading
Portion A
Site
clearance and formation
Timber
Scaffolding
Ground
Investigation
Set-up
facilities for marine delivery of concrete from land plants
Portion C
Trial Pit
excavation for U/U
Ground
Investigation
Erection of
hoarding & fencing
Site office
area set up
Pre-drilling
work at western water, along slopping seawall
Protection
work to the fuel pipes along the access road
Slewing
work for CLP 11kVA and 132kVA power cable
Western
Water
Ground
Investigation for design
Pre-drilling
Work
Loading and
Unloading
Preparation
work for bored piling
Setting up
of silt-curtain
Bored
piling excavation and concreting works