executive summary
ES01
This is the 99th monthly Environmental Monitoring & Audit (EM&A) report
presenting the monitoring results and inspection findings for the reporting period from 1 to 31 October 2021 (hereinafter ‘the
Reporting Period’).
Environmental
Monitoring and Audit Activities
ES02
To facilitate the project management and
implementation, Liantang/Heung Yuen Wai
Boundary Control Point and Associated Works of the Project is
divided to six CEDD contracts
including Contract 2 (CV/2012/08), Contract 3 (CV/2012/09), Contract 4 (NE/2014/02), Contract 5 (CV/2013/03), Contract
6 (CV/2013/08) and Contract 7 (NE/2014/03) and an ArshSD
contract (Contract SS C505).
ES03
Substantial
completion for the Works has been achieved for all Contracts in 2019. Proposal for partial termination of the
construction phase EM&A programme for Contracts 2, 4, 7 and SS C505 was
approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52
Pt.17). Moreover, termination
proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: () in Ax
(3) to EP 2/N7/A52 Pt.18). Therefore, air quality monitoring stations AM1c, AM8
& AM9b, noise monitoring stations NM1, NM7, NM8, NM9 & NM10 and water
quality monitoring stations WM4, WM4-CA & WM4-CB and ET’s site inspection
and audit for relevant works area for Contracts 2, 3, 4, 7 and SS C505 was
ceased accordingly.
ES04
In the Reporting Period, environmental monitoring activities under the EM&A programme in the
Reporting Period are summarized in the following table.
|
Environmental Aspect
|
Environmental Monitoring Parameters /
Inspection
|
Reporting Period
|
|
Number of Monitoring Locations to undertake
|
Total Occasions
|
|
Air Quality
|
1-hour
TSP
|
6 (#)
|
96
|
|
24-hour
TSP
|
6 (#)
|
30
|
|
Construction Noise
|
Leq(30min) Daytime
|
5 (~)
|
20
|
|
Water Quality
|
Water in-situ measurement and/or sampling
|
WM1
& WM1-C
|
12 Scheduled &
0 extra (*)
|
|
WM2A(a)
& WM2A-Cx
|
12 Scheduled &
0 extra (*)
|
|
WM2B
& WM2B-C
|
12 Scheduled &
0 extra (*)
|
|
WM3x
&WM3-C
|
12 Scheduled &
0 extra (*)
|
|
Joint Site Inspection / Audit
|
IEC, ET,
the Contractor and RE joint site Environmental Inspection and Auditing
|
Contract 6
|
4
|
Remark:
(*) Water
sampling was unable to carry
out at WM2B and WM2B-C in the Reporting Period due to shallow water. Besides,
WM3-C was also unable to carry out in the Reporting Period due to shallow
water. (Water depth under 150mm). WM4,
WM4-CA and WM4-CB were ceased after last monitoring carried out on 3 May 2021
according to Partial Termination Proposal for Contract 3 approved by EPD on 4
May 2021. Water quality monitoring on 13 October 2021 was cancelled due to
adverse weather condition (Typhoon Signal No.8 inforce on 13 October 2021)
(#)
Number of air monitoring location changed to 6 since the partial termination proposal
approved by EPD on 9 Jul 2020 and 4 May 2021.
(~)
Number of noise monitoring location changed to 5 since the partial termination proposal
approved by EPD on 9 Jul 2020 and 4 May 2021.
ES05
Construction phase for
Contract 6 are substantially completed.
In view of substantial
completion of construction work and in consideration of the scale and nature of
remaining works under
Contract 6, a revised “Proposal
for termination of the Construction Phase EM&A Programme for the remaining Contract 6 of the
Project” submitted to EPD on 15 July 2021 for approval. However, it is noted that additional
works involving the construction of flood walls
and maintenance ramp around Kong Yiu Drainage Channel to the south of Heung
Yuen Wai Boundary Control Point (BCP) are proposed to be carried out under Contract 6 between Q4 of 2021 and
Q3 2022. In consideration of the
additional works pose potential environmental impact, the Proposal was withdrawn
by AECOM on 25 October 2021.
Action and Limit (A/L) Levels exceedance
ES06
In the Reporting Period, no exceedance was recorded for construction noise, air quality and water quality monitoring. The summary of exceedance in the Reporting Period is shown below.
|
Environmental Aspect
|
Monitoring
Parameters
|
Action Level
|
Limit Level
|
Event
& Action
|
|
NOE
Issued
|
Investigation
Result
|
Project
related exceedance
|
Corrective
Actions
|
|
Air Quality
|
1-hour TSP
|
0
|
0
|
0
|
--
|
--
|
--
|
|
24-hour TSP
|
0
|
0
|
0
|
--
|
--
|
--
|
|
Construction Noise
|
Leq(30min) Daytime
|
0
|
0
|
0
|
--
|
--
|
--
|
|
Water Quality
|
DO
|
0
|
0
|
0
|
--
|
--
|
--
|
|
Turbidity
|
0
|
0
|
0
|
--
|
--
|
|
SS
|
0
|
0
|
0
|
Environmental
Complaint
ES07
No environmental complaint was recorded in the Reporting Period.
Notification
of Summons and Successful Prosecutions
ES08
No environmental summons and prosecutions were recorded in the Reporting Period.
Reporting Change
ES09
No reporting change was recorded in the Reporting period.
Site Inspection
ES10
In the Reporting Period, joint site
inspection to evaluate the site environmental performance at Contract
6 has been carried out by the RE, ET, IEC and the Contractor on 7, 12, 20 and 28 October 2021. No non-compliance was noted during the site inspection.
Future Key Issues
ES11
Since
the construction works under the Project were substantial completed, the
potential environmental impacts associated with Project are considered
negligible.
However, the Contractor was reminded that the environmental
mitigation measures shall be properly implemented and maintained where applicable, as per the Mitigation
Implementation Schedule,
in the remaining construction period and operational phase.
