This Monthly Environmental
Monitoring and Audit (EM&A) Report is prepared for Contract No. SPW 01/2025
“Environmental Team for Construction of Yuen Long Effluent Polishing Plant
Stage 1”. Drainage Services Department (DSD) has appointed Aurecon Hong Kong
Limited (Aurecon) to undertake the Environmental Team services for the project
and implement the EM&A works.
This is the 65th
Monthly EM&A Report for the construction phase which summaries findings of
the EM&A programme during the reporting period from 1 August 2026 to 31 August
2026. As informed by the Contractors, major activities in the reporting month
were:
Contract DC/2019/10:
· Pipe
works for Modification of Existing Inspection Chamber and Inlet Effluent Pipes
from Nam Sang Wai Sewage Pumping Station
· Pipe works for Modification of Existing
Inspection Chamber and Inlet Effluent Pipes from Nam
Sang Wai Sewage Pumping Station
· ABWF and E&M works at IW (Remaining area)
· RC works at PST Stage 2
· RC work at SDB
· ELS and RC work at ADB and Underpass
· RC works at AGS
· RC and ABWF structure at TTS
· ABWF and E&M works at STB
· ELS work at Sludge Digester no. 4-6 and UC4
· E&M work at Sludge
Digester no. 1-3
· Water test and rectification work at Sludge
Digester no. 1-3
· E&M work at Biogas Holder no. 2
· Disposal of construction waste as indicated in Appendix
I.
Contract DE/2020/01:
·
Installation of PV panels.
·
Disposal
of construction waste as indicated in Appendix I.
Breaches
of Environmental Quality Performance Limits (AL levels)
No
Action and Limit Level exceedance was recorded for air quality monitoring and construction
noise monitoring in the reporting month.
No Action and Limit Level
exceedance was recorded for water quality monitoring in the reporting month.
No
Action / Limit exceedance was recorded for noise levels at stations (NMS1 and
NMS2) in close proximity to the two active ardeid night roosts (ANR1 and ANR2)
observed within the Survey Area during the reporting month.
No
Action / Limit exceedance for the ecological monitoring of birds in the
reporting month.
No corrective actions were required
according to the Event and Action Plans for the Monitoring Parameters.
Land
Contamination
Regular
site inspection was carried out to ensure the recommended mitigation measures
are properly implemented. The signed final Contamination Assessment Report
(CAR) for “Main Storeroom & Workshops”, “Mechanical Workshop”, “Waste
Storage Area”, “SAS Thickener House-1”, “SAS Thickener House-2”and “Screening
Press House” were submitted to EPD respectively on 1st November
2021, 23rd November 2021, 29th April 2022, 6th
July 2022, 19th June 2023 and 29th October 2024. No
contaminated soil and ground water was found within the Main Storeroom &
Workshop, Mechanical Workshop, Waste Storage Area, SAS Thickener House-1, SAS
Thickener House-2 and Screening Press House, and no remedial action is required
for these locations.
Complaint
Log
No complaints were received in the
reporting period.
Notifications
of Summons and Successful Prosecutions
No notifications of summons and successful
prosecutions were received in the reporting period.
Reporting
Change
There were no reporting changes during
the reporting month.
Future
Key Issues
The main works will be anticipated in
the next three months are as follow:
Contract
DC/2019/10:
· Fixing
GRC panel at CLP Substation
· Pipe
works for Modification of Existing Inspection Chamber and Inlet Effluent Pipes
from Nam Sang Wai Sewage Pumping Station
· ABWF
and E&M works at IW (Remaining area)
· RC
works at PST Stage 2
· RC
work at SDB
· RC
work at Underpass
· RC
work at ADB
· External
UU works at site-wide
· RC
structure at AGS and Water Tightness Test
· RC
structure at TTS and Water Tightness Test and AWBF Works
· ABWF, E&M
and T&C work at STB
· ELS
work at UC2 and UC3
· E&M, Water
Tightness Test and Lining work at Sludge Digester no. 1-3
· RC work
at PP1
· ELS work
at Sludge Digester no. 4-6 and UC4
· E&M
work at Biogas Holder no. 2 & 3
· Demolition
of existing consolidation tank at Zone 3
Contract DE/2020/01:
·
Installation of PV panels