1.
This is the 56th
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
2017.
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, 15th, 21st and 27th September
2017 |
|
24-hr TSP Monitoring |
5th,
11th, 15th, 21st and 27th
September 2017 |
|
Noise Monitoring |
6th, 12th, 22nd
and 28th September 2017 |
|
Water Quality Monitoring |
1st,
5th, 7th, 9th, 11th, 13th,
15th, 18th, 20th, 22nd, 25th,
27th and 29th September 2017 |
|
7th
and 13th September 2017 |
|
|
Environmental Site Inspection |
5th,
12th, 19th and 26th September 2017 |
|
Archaeological Site Inspection |
12th
September 2017 |
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 |
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) |
3 |
2 |
5 |
0 |
0 |
0 |
|
1-hour TSP Monitoring
4.
All 1-hour TSP monitoring
was conducted as scheduled in the reporting. The second hour measurement of
1-hr TSP result for AMS1 on 5th September 2017 was not included in
Table 3.4 as it is considered invalid with unknown stain on filter paper. No
exceedance were found for the first and third hour measurement of 1-hr TSP
result on 5th September 2017 and no significant change of
construction activities within the three hours as confirmed with DCVJV.
Therefore, the second hour measurement of 1-hr TSP result for AMS1 on 5th
September 2017 is not representative to show the air quality impact from
construction works and was classified as invalid sample. No Action/Limit Level
exceedances were recorded. 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 three Action
Level and two 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
pollution discharge from construction activity was observed;
2) Adverse
water quality outside the site boundary was observed while no pollution source
from this Contract was observed and no construction vessel for this Contract
was travelling nearby. 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 also 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:
WA4
·
Establishment
for 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 main
·
Erection of
sign gantry
·
Installation
of stormwater drainage
·
Site clearance
/ formation work to reinstatement of SPR
·
Fill slope
and roadworks for CLKSR realignment
·
Installation
of carrier drains
·
Installation
of watermain
·
Laying of
asphalt pavement
E&M Works
·
E&M
ducting installation
·
E&M works
inside SHT building
·
Street light
cables and poles installation
·
Cable hanger
installation
·
Construction
of Load Centre
·
Optic fibre cable laying works
·
LV and HV
cable laying works
·
Cable tray
installation
Marine Viaduct (P0 to P80)
Deck Erection
·
Dismantling
works
·
Stitching
works
·
Movement joints
installation
External Prestressing
Tendon Installation
Internal Prestressing
Grouting
Turnaround Facilities
·
Casting at
top slab for longitudinal stich
·
Petrol
interceptor rebar fixing
·
Erection of
falsework and formwork
·
Wingslab falsework erection
·
Sling
platform erection
·
Grouting
bearing plinth
·
Load transfer
on bearing
·
Concrete
stitching
·
Erect 4
number of Corner Beams