1.
This is the 50th 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 March 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 |
1st, 7th,
13th, 17th, 23rd and 29th March
2017 |
24-hr TSP Monitoring |
1st, 7th,
13th, 17th, 23rd and 29th March
2017 |
Noise Monitoring |
2nd, 8th, 14th, 24th and 30th
March 2017 |
Water Quality Monitoring |
1st, 3rd,
6th, 8th, 10th, 13th, 15th,
17th, 20th |
1st and 13th
March 2017 |
|
Environmental Site Inspection |
7th, 14th,
21st and 28th March 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) |
4 |
4 |
8 |
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 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 four 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) 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) Adverse water quality
outside the site boundary was observed while no construction vessel for this
Contract was travelling nearby.
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
¡P
Foundation works for Asphalt Plant
Ancillary and Associated Facilities
¡P
Sealing of deck openings and
preparation deck surface for waterproofing
¡P
Waterproofing and asphalt laying
¡P
Watermain installation
¡P
Installation of carrier drains
¡P
Installation of precast parapet
skins
¡P
Construction of median and side
barriers
¡P
Construction of longitudinal
stitching
¡P
Erection of sign gantry
¡P
Reinstatement of slope area and
drainage works
¡P
Reinstatement of sloping seawall
¡P
Fill slope for CLK South Road
realignment
¡P
Laying of asphalt pavement
¡P
Sealing of gantry crane loading
opening
E&M Works
¡P
E&M installation
¡P
E&M ducting installation
¡P
Street light cables and poles
installation
¡P
Cable hanger installation
¡P
Construction of Lad Centre
Marine Viaduct (P0 to P80)
Deck Erection
¡P
Segment erection
¡P
Temporary steel structure
dismantling
¡P
Erection of cantilever
¡P
Span erection
External Prestressing Tendon Installation
Internal Prestressing Grouting
Turnaround Facilities
¡P
Stitching works
¡P
Steel fixing
¡P
Erection of formworks and steel fixing
¡P
Erection of extended platform