3.
ENVIRONMENTAL
MONITORING AND AUDIT
3.1
Air Quality
Monitoring Results
3.1.1
The monitoring results for AMS6 are reported in the
monthly EM&A Reports (for December 2018 and January 2019) prepared for
Contract Nos. HY/2011/03. The monitoring results for AMS2, AMS3C and AMS7B are reported in the monthly
EM&A Reports (for December 2018 and January 2019) prepared for
Contract Nos. HY/2013/04.
3.1.2
Summary
of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at
AMS6 is reported in the monthly EM&A Reports (December 2018 and January
2019) prepared by Contract No. HY/2011/03.
3.1.3
There was no Action and Limit Level exceedance of 1-hr
TSP level and 24-hr TSP level recorded at station AMS2, AMS3C and AMS7B by the
Environmental Team of Contract No. HY/2013/04 during the reporting period.
3.2
Noise
Monitoring Results
3.2.1 The
monitoring results for NMS2 and NMS3C are reported in the monthly EM&A
Reports (for December 2018 and January 2019) prepared for Contract No. HY/2013/04.
3.2.2 No noise exceedances were recorded at station NMS2 and
NMS3C by the ET of Contract No. HY/2013/04 during the reporting period.
3.3
Water Quality
Monitoring Results
3.3.1 The
monitoring and investigation results for the monitoring stations shown in Table 2.2 were reported in the monthly
EM&A Report (December 2018 and January 2019) prepared
for Contract No. HY/2013/04. There were Action Level exceedances recorded at
different WQM stations recorded on three days. After investigation, it was
concluded that all exceedances were not relevant to Contract No. HY/2013/03.
3.3.2 There was no Action and
Limit Level exceedance recorded on other monitoring dates at the monitoring
stations shown at Table 2.2 by the
Environmental Team of Contract No. HY/2013/04 during the reporting period.
3.4
Ecology
Monitoring Results
3.4.1 The
dolphin survey results for all transects were reported in the monthly EM&A
Reports (for December 2018 and January 2019) prepared by
Contract No. HY/2013/04. There was no Action and Limit Level exceedance
recorded by the Environmental Team of Contract No. HY/2013/04 during the
reporting period (December 2018 to January 2019).
3.5
Implementation
of Environmental Measures
3.5.1 As all the
sections under Contract No. HY/2013/03 (includes the construction works of HY/2013/06
within Contract No. HY/2013/03 works area) were handed over to the relevant
authorities on 24 October 2018 and the site had been changed to a closed area,
no site audit was conducted during the reporting period.
3.5.2 A summary of the Implementation Schedule of
Environmental Mitigation Measures (EMIS) is presented in Appendix D. All necessary mitigation measures at this stage of
works were implemented properly.
3.5.3 As confirmed by RSS, all surplus filling materials
transported from Contract No. HY/2013/03 to other projects by marine vessels
have been completed with the last batch delivered on 07 May 2018.
3.5.4 With respect to condition 3.26A of EP-353/2009/K
approved by EPD on 11 April 2016, the numbers and operating periods of floating
grout production facilities and floating concrete batching plants on-site to
review on the compliance to this EP condition were checked. Under Contract No.
HY/2013/03, no floating concrete batching plant was operated
on-site during the reporting period.
3.5.5 As all the works in Box Culvert B had been completed,
the silt curtain was uninstalled. The Dolphin Watching Plan (DWP) is no longer
applicable.
3.5.6 The landscape work of green roof for Contract No.
HY/2013/03 was commenced on 07 November 2017. The landscape work of all areas
at ground level for Contract No. HY/2013/03 was commenced at early February
2018. Detail commencement date of each building were shown in Table 3.1. Bi-monthly landscape establishment monitoring was
conducted on 25 Jan 2019.
Table 3.1 Commencement date of green roof for each
building
|
Building No. of Green Roof |
Commencement dates of planting
for roof greening |
|
037 |
07
Nov 2017 |
|
043 |
20
Dec 2017 |
|
041 |
27
Dec 2017 |
|
026 |
22
Jan 2018 |
|
039 |
22
Jan 2018 |
|
All areas at ground level |
Early Feb 2018 |
|
031 |
08 Mar 2018 |
|
046 |
08 Mar 2018 |
3.6
Advice on the
Solid and Liquid Waste Management Status
3.6.1 The Contractor of Contract No. HY/2013/03 registered
as a chemical waste producer for the Contract. Sufficient numbers of
receptacles were available for general refuse collection and sorting.
3.6.2 No
extracted marine sediment was treated using cement solidification/stabilisation
(Cement S/S) techniques under Contract No. HY/2013/03 during this reporting
period. No marine sediment extracted from this Contract was disposed to the
Marine Fill Committee (MFC) allocated disposal sites directly without treatment
during this reporting period. As a practical mean, the disposal operation is
managed by one contractor who is also responsible for applying dumping permit
and its subsequent extension applications from EPD. Contract No. HY/2013/03 has
been assigned to coordinate and arrange for disposal of extracted marine
sediment from all three Contracts (Contract Nos. HY/2013/02, HY/2013/03 and
HY/2013/04).
3.6.3 The barge for disposal of marine sediment was morn at
the temporary loading and unloading at the east shore of the HKBCF Island,
which has been being used by reclamation contractor (Contract No. HY/2010/02)
for reclamation activities. In terms of safety consideration and to avoid
mixing of sediment between contracts, each dumping date was allocated to one
Contract. The quantity of marine sediment disposed on each date was from one
Contract.
3.6.4 During
dumping, Contractor of Contract No. HY/2013/03 is responsible for transporting
the marine sediment from the site area of Contract No. HY/2013/03 to the barge.
The estimated quantity of marine sediment in each truck is confirmed by
Resident Site Staff of Contract Nos. HY/2013/02, HY/2013/03 and HY/2013/04. The
trip tickets for transportation and disposal of marine sediment are collected
and checked. Contract No. HY/2013/03 as the dumping permit holder is
responsible for reporting to EPD the quantity disposed of as the condition
stipulated in the dumping permit. The disposal site allocated to this Project
are the Mud Pit CMP Vd of the Confined Marine
Sediment Disposal Facility to the East of Sha Chau (ESC).
3.6.5 No marine sediment extracted from bored piling from
this Contract was disposed to allocated dumping site during this reporting
period. As confirmed by RSS, all marine sediments extracted from HY/2013/02,
HY/2013/03 and HY/2013/04 have been completed with the last batch disposal on
30 August 2017. The summary of marine sediment disposed during this reporting
period is shown in the following table:
Table 3.2 Summary of Marine Sediment Disposed to
Dumping Site
|
Month/Year |
Quantity disposed (in‘000m3) |
|||
|
|
HY/2013/02 |
HY/2013/03 |
HY/2013/04 |
Total |
|
Dec 2018 |
0.000 |
0.000 |
0.000 |
0.000 |
|
Jan 2019 |
0.000 |
0.000 |
0.000 |
0.000 |
|
Total |
0.000 |
0.000 |
0.000 |
0.000 |
3.6.6 The
summary of waste flow table for Contract No. HY/2013/03 (includes Contract No.
HY/2013/06 within Contract No. HY/2013/03 works area) is detailed in Appendix E.
3.6.7 Contract No. HY/2013/03 has been assigned to arrange
for delivery of surplus filling materials from Contract No. HY/2013/03 to other
projects, including Tuen Mun
- Chek Lap Kok Link (TM- CLKL) project
of HZMB, the Airport Authority Hong Kong’s Three Runway (3RS) Project, Wan Chai
Development Phase II project, Contract No. HY/2013/02 of HKBCF and Hong Kong
Link Road (HKLR) project of HZMB. As confirmed by RSS, all surplus filling
materials delivery to other projects have been completed with the last batch on
07 May 2018. The total transported quantity up to the last batch is 379.48358
(in‘000m³). The summary
of surplus filling materials delivered to other projects up to the end of May
2018 is shown in Table 3.3.
Table 3.3 Summary of Surplus Filling Materials
Delivered from Contract No. HY/2013/03 to other projects
|
Month/Year |
Density
(in tonnes/m3) |
Quantity
disposed (in ‘000m3) |
|||||
|
To HY/2013/02 |
To TM-CLKL Project |
To 3RS Project |
To WDII Project |
To HKLR Project |
Total |
||
|
May 2017 |
2.3 |
0 |
12.637 |
0 |
0 |
0 |
12.637 |
|
Jun 2017 |
2.63925 |
0 |
14.769 |
11.238 |
0 |
0 |
26.007 |
|
Jul 2017 |
1.9 |
0 |
4.406 |
34.875 |
10.048 |
0.760 |
50.089 |
|
Aug 2017 |
1.9 |
0.480 |
0 |
67.942 |
2.761 |
7.455 |
78.638 |
|
Sep 2017 |
1.9 |
5.544 |
0 |
62.770 |
0 |
4.648 |
72.962 |
|
Oct 2017 |
/ |
3.384 |
0 |
45.92809 |
0 |
0 |
49.31209 |
|
Nov 2017 |
/ |
5.412 |
0 |
5.507 |
0 |
0 |
10.919 |
|
Dec 2017 |
/ |
12.57173 |
0 |
0 |
0 |
0 |
12.57173 |
|
Jan 2018 |
/ |
10.228 |
0 |
0 |
0 |
0 |
10.228 |
|
Feb 2018 |
/ |
0 |
0 |
0 |
0 |
0 |
0 |
|
Mar 2018 |
/ |
0.45276 |
0 |
0 |
0 |
0 |
0.45276 |
|
Apr 2018 |
/ |
0 |
42.544 |
0 |
0 |
0 |
42.544 |
|
May 2018 |
/ |
0 |
13.123 |
0 |
0 |
0 |
13.123 |
|
Total |
/ |
38.07249 |
87.479 |
228.26009 |
12.809 |
12.863 |
379.48358 |
Remarks:
ž
The variation in density is due to different
compositions of surplus filling materials
ž There may be discrepancies in the
total quantities with the quantities of inert C&D materials stated in
Appendix E, due to rounding errors
ž No density was given from October
2017 to May 2018 due to the direct volume figures as provided and confirmed by
the RSS
3.7
Environmental
Licences and Permits
3.7.1 The valid environmental licences and permits for
Contract No. HY/2013/03 (includes Contract No. HY/2013/06 within Contract No.
HY/2013/03 works area) during the reporting period are summarized in Appendix F. The Contractor of Contract
No. HY/2013/06 was advised to register as a chemical waste producer when
chemical waste is expected to generate for the foreseeable future from the
operations (For Registration as Waste Producer Pursuant to Waste Disposal
(Chemical Waste) (General) Regulation).