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Contract No. CM 04/2024 – Outlying Islands Sewerage Stage 2 – South Lantau Sewerage Works –
Environmental Team Services (2025 - 2027) |
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Monthly Environmental Monitoring and Audit Report
for: July 2026 Revision 1 |
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Certified By: ______________ Lau Hoi Wai, Josephine Environmental Team Leader Report Date: 11 August 2026 |
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Content:
1.2 Environmental
Monitoring & Audit Programme
1.3 Monthly
Environmental Monitoring & Audit Report
2. Basic project
Information and Environmental Status
2.3 Works
undertaken during the Reporting Month
2.4 Drawing
Showing the Project Area, Environmental Sensitive Receivers and Monitoring
Locations
3.2 Environmental
Mitigation Measures
3.3 Environmental
Monitoring Requirements and Contractual Requirements
3.4 Site
Inspection and Audit Reports
4.3 Monitoring
Date, Time, Frequency and Duration
5.1 Completion
of Water Quality Monitoring
6.4 Monitoring
Date, Time, Frequency and Duration
8. Complaints,
Notification of Summons and Prosecution
10.3 Ecological
Impact Monitoring
10.4 Review of
the Reasons for and the Implications of Non-compliance
10.5 Summary of Action Taken in the Event of and
Follow-Up on Non-Compliance
Tables:
Table 2.1: Contact
Details of Key Personnel
Table 3.1: Summary
of Submission Status under EP-538/2017
Table 3.3: Summary
of Environmental Inspections
Table 4.1: Noise
Monitoring Equipment
Table 4.2: Noise
Monitoring Station
Table 7.1: Summary
of Quantities of Waste Material
Table 8.1: Cumulative
Statistics on Complaints
Table 8.2: Summary
of Complaints
Table 8.3: Cumulative
Statistics on Successful Prosecutions
Table 9.1: Construction
Activities and Recommended Mitigation Measures in Coming Reporting 3 Months
Table 10.1: Summary of
Ecological Impact Monitoring
Figures:
Figure 2.2 Contract Layout Plan
Figure
2.3 Locations of Noise Monitoring
Station
Figure
6.1 Mark up Figure 5.4i extracted
from approved EIA Report (AEIAR-210/2017)
Figure 6.2 Location Plan for Temporary Holding
Nursery
Appendices:
Appendix 4.1 Calibration Certificates for Noise Meter and
Acoustic Calibrator
Appendix 4.3 Noise Monitoring Results and Graphical
Presentations
Appendix 7.1 Monthly Summary Waste Flow Table
Appendix 9.1 3
Months Rolling Programme
This Monthly
Environmental Monitoring and Audit (“EM&A”) Report summarise project
monitoring and auditing data, with full interpretation illustrating the
acceptability or otherwise of any environmental impacts and identification or
assessment of the implementation status of agreed mitigation measures, including
monitoring results and findings of the EM&A Programme, along with findings
recorded during the site Inspections and audits, reports of Complaints,
Notifications of Summons and Successful Prosecutions, and other necessary
observations obtained within this reporting month of July 2026.
In the reporting
month, the principal work activities conducted are as follow:
Excavation, sewer laying,
construction of manhole at Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma Wan
Road;
Trenchless drilling works (Chi Ma Wan
Road);
Excavation and Excavation and Lateral
Support (“ELS”) work at Pui O Sewage Pumping Station (“POSPS’);
Superstructure Reinforced Concrete
(“RC”) works at San Shek Wan Sewerage Treatment Works (“SSWSTW”);
Waterproofing work at SSWSTW;
Excavation and site formation at
SSWSTW;
Retaining
wall construction at SSWSTW;
Electrical and Mechanical (“E&M”)
Installation at POSPS;
E&M Installation at SSWSTW;
Architectural Builders
Works and Finishes Work (“ABWF”) work at POSPS; and
ABWF work at SSWSTW
Noise Monitoring
Noise Monitoring has
been conducted at 8 of the designated monitoring locations (N12a, N12b, N13,
N14, N15b, N16a, N16b, and N17) where construction works has been conducted
nearby during the reporting month.
No action or limit level
exceedance was recorded in construction noise level in this reporting period.
Water Quality
Monitoring
Subsequent
to the completion of
marine work on 24 May 2025, water quality monitoring was considered completed by
30 May 2025. No water quality monitoring is conducted in this reporting month.
Should marine works
resume, water quality monitoring will be conducted in accordance with the
requirement stipulated in the EM&A Manual accordingly.
Ecological Impact
Monitoring
Transplanting of the
trees of Aquilaris sinensis was
completed on 26 April 2022. Maintenance works for trees in holding nursery have
commenced.
As per latest
version of PTP, 4 tree found (1 no. of Aquilaria
sinensis and 3 nos. of Gmelina chinensis) within the site of SSWSTW
which are considered to be the plant species with conservative importance for
temporarily transplanted to the nursery at Kam Tin and eventually be
transplanted to Pui O Pumping Station.
The weekly site
audit was carried out by ET include checking whether good site practices are
being properly implemented by the Contractor.
The extent of the
work site boundaries was checked by the ET during the weekly site audit.
Complaints,
Notification of Summons and Prosecution
No environmental
complaint was recorded in the reporting month.
No notification of
summons and successful prosecution regarding construction works were recorded
in the reporting month.
Reporting Changes
Mr Kelvin Tso has replaced Mr Kevin Chan as Engineer’s Representative of the subject. His contact details have been updated in Table 2.1
Future Key Issues
The
construction works scheduled to be conducted in the coming 3 reporting months
are listed as follows:
Excavation, sewer laying,
construction of manhole at Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma Wan
Road;
Excavation and site formation at
SSWSTW;
Trenchless drilling works (Chi Ma Wan
Road);
Excavation and ELS work at POSPS;
Superstructure RC works at SSWSTW;
Waterproofing Work at SSWSTW;
Excavation
and site formation at SSWSTW;
Retaining wall construction at
SSWSTW;
E&M Installation at POSPS;
E&M Installation at SSWSTW;
ABWF
Work at POSPS;
ABWF
Work at SSWSTW; and
Slope
Work near SSWSTW
Key construction activities
for the next three months with the recommended mitigation measures to be
implemented are presented as follows:
|
Key Construction
Works |
Recommended
Mitigation Measures |
|
Excavation, sewer laying,
construction of manhole at Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma Wan
Road; Excavation and site formation at
SSWSTW; Trenchless drilling works (Chi Ma
Wan Road); Excavation and ELS work at POSPS; Superstructure RC works at SSWSTW; Waterproofing Work at SSWSTW; Excavation
and site formation at SSWSTW; Retaining wall construction at
SSWSTW; E&M Installation at POSPS; E&M Installation at SSWSTW; ABWF
Work at POSPS; ABWF
Work at SSWSTW; and Slope
Work near SSWSTW |
·
Prevention of site runoff
during heavy rainstorms. ·
Implementation of noise
pollution control in accordance with Construction Noise Mitigation Plan; ·
Dust control during dust
generating works; ·
Adopt surface drainage
and sediment control facilities for sewage installation in village and public
roads; ·
Adopt temporary drainage
and sediment control facilities on Site; ·
Regular water spraying on
excavation works for dust control; and ·
Proper waste handling,
recycling and storage. |
1.1.1
The Environmental Protection Department (“EPD”)
completed the Outlying Islands Sewerage Master Plan (“SMP”) Study in 1994 and
drew up a SMP for Lantau Island and other outlying islands. The proposed
sewerage works of the SMP were divided into 2 stages. The Stage 2 Works of the SMP were subsequently
reviewed by EPD under the Outlying Islands Sewerage Master Plan Stage 2 Review
(SMP Review Study) in 2001.
1.1.2
The proposed sewerage works for South Lantau were
further reviewed in 2008 under the Review of Sewerage Scheme for South Lantau
(Review Study). According to the Review Study, the proposed sewerage works for
South Lantau would serve the unsewered areas of Shui Hau, Tong Fuk, Cheung Sha,
San Shek Wan, Pui O and Ham Tin.
1.1.3
The Outlying Islands Sewerage Stage 2 – South Lantau
Sewerage Works, herein referred to as “the Project”, referred to the sewerage
works for South Lantau that would serve the unsewered areas of Shui Hau, Tong
Fuk, Cheung Sha, San Shek Wan, Pui O and Ham Tin.
1.1.4
The Project mainly comprises of the following items:
a)
Construction of a secondary sewage treatment works
(“STW”) at San Shek Wan in South Lantau;
b)
Construction of sewage pumping station (“SPS”) at Pui
O, San Shek Wan, Cheung Sha, Cheung Fu Street, Shui Hau and Tong Fuk;
c)
Construction of about 1.4km of twin submarine outfalls
with a diameter of 350mm for the disposal of treated effluent from the STW at
San Shek Wan;
d)
Construction of about 10.1km of gravity sewers with
diameters ranging from 150mm to 375mm along South Lantau Road and Chi Ma Wan
Road and at Pui O; and
e)
Construction of about 3.1km of twin rising mains with
a diameter of 200mm to 250mm along South Lantau Road and Chi Ma Wan Road.
1.2.1
An Environmental Impact Assessment (“EIA”) was
subsequently prepared to review the potential environmental impact that would
be due to the Project during its construction works and operational works. The
EIA Report was submitted and approved on 24 April 2017, and Environmental
Permit (“EP”) No. EP-538/2017 was subsequently granted on 13 July 2017.
1.2.2
Environmental Monitoring & Audit (“EM&A”)
Programme is therefore implemented in accordance with the EM&A Manual under
the EIA Report.
1.2.3
Umwelt Consulting Limited (“UCL”) has been appointed
to work as the Environmental Team (“ET”) under EP No. EP-538/2017 to implement
the Environmental Monitoring and Audit (“EM&A”) programme as stipulated in
the EM&A Manual of the approved EIA Report for the Outlying Islands
Sewerage Stage 2 – South Lantau Sewerage Works (Register No.: AEIAR-210/2017).
1.3.1
This Monthly EM&A Report summarise project monitoring
and auditing data, with full interpretation illustrating the acceptability or
otherwise of any environmental impacts and identification or assessment of the
implementation status of agreed mitigation measures, including monitoring
results and findings of the EM&A Programme, along with findings recorded
during the site Inspections and audits, reports of Complaints, Notifications of
Summons and Successful Prosecutions, and other necessary observations obtained
within this reporting month of July 2026.
1.3.2
The structure of this
Report is detailed as follows:
a)
Section 1 Introduction –
Details the scope and
structure of the report.
b)
Section 2 Basic project Information and Environmental
Status –
Summarizes project organization and key personnel contact, construction
programme and works undertaken for the
month. Construction programme, works undertaken during the month with illustrations, drawing showing the
project area, environmental sensitive receivers
and monitoring locations.
c)
Section 3 Implementation Status –
Advice on the
implementation status of environmental
protection and pollution control/mitigation measures, as recommended in the EIA Report and summarised in the
updated implementation
schedule.
d)
Section 4 Noise Monitoring –
Summarizes the
monitoring results obtained in the reporting period,
including monitoring methodology, name of laboratory and equipment used and calibration details, parameters
monitored, monitoring locations (and
depth), monitoring date, frequency, and duration, for impact noise monitoring.
e)
Section 5 Water Quality Monitoring –
Summarizes the
monitoring results obtained in the reporting period,
including monitoring methodology, name of laboratory and equipment used and calibration details, parameters
monitored, monitoring locations (and
depth), monitoring date, frequency, and duration, for impact water quality
monitoring.
f)
Section 6 Ecology –
Summarizes the audit
findings during the reporting month on ecological aspects.
g)
Section 7 Waste Management –
Summarizes the status
of waste management, including the amount and types of waste generated, and
respective treatment approach.
h)
Section 8 Report on Complaints, Notification of
Summons and Successful Prosecutions –
Summarizes:
Ø Record of all
complaints received (written or verbal) for each media, including locations and nature of complaints investigation,
liaison and consultation undertaken, actions
and follow-up procedures taken, results and summary.
Ø Record of
notifications of summons and successful prosecutions for breaches of the current environmental protection/pollution
control legislations, including locations and nature
of the breaches, investigation, follow-up actions taken, results and summary.
Ø Review of the
reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution
sources and working procedures; and
Ø Description of the
actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to
non-compliance.
i)
Section 9 Future Key Issues –
An account of the future key issues as reviewed from
the works programme and
work method statements.
j)
Section 10 Conclusion –
Summarises the
findings conclusion drawn from the environmental monitoring and audit programme
in this reporting month.
2.1.1
Drainage Services Department (“DSD”) is the project
proponent and the permit holder of the Project. For the construction phase of
the Project, Contractor(s), ET and Independent Environmental Checker (“IEC”)
are appointed to manage and control environmental issues. Key personnel and
contact particulars are summarized in Table 2.1.
2.1.2
Upon conclusion of Contract No: SD 15/2022 Outlying
Island Sewerage Stage 2 – South Lantau Sewage Works – Environmental Team
Services (2023 – 2024), the subsequent contract, Contract No. CM 04/2024
Outlying Islands Sewerage Stage 2 – South Lantau Sewerage Works – Environmental
Team Services (2025–2027), was awarded to Umwelt Consulting Limited (“UCL”). Mr. Ting Po Chung, Ivan was appointed as the
environmental team leader (“ETL”) for the Project with effect from 1 February
2025. With effect from 1 March 2026, Mr. Ting Po Chung, Ivan ceased to be the
ETL and was replaced by Ms Lau Hoi Wai, Josephine as the Environmental Team
Leader (“ETL”) of the subject project. Her contact details have been updated in Table 2.1.
2.1.3
Mr Kelvin
Tso has replaced Mr Kevin Chan as Engineer’s Representative of the subject
project. His contact details have been updated in Table 2.1.
Table 2.1: Contact
Details of Key Personnel
|
Party |
Role |
Post |
Name |
Contact No. |
Contact Fax |
|
Drainage Services Department |
The Engineer for the Contract |
Engineer |
Mr. KK Chan |
3965 8202 |
3104 6426 |
|
Binnies Hong Kong Limited |
Engineer’s Representative |
Resident Engineer |
Mr. Kelvin Tso |
3529 3003 |
- |
|
Kwan Lee – Chun Wo Joint Venture |
Contractor |
Sub Agent |
Mr. Daniel Chu |
6737 6701 |
2744 6937 |
|
Environmental Supervisor |
Ms. Joey Pang |
6978 2876 |
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|
Environmental Supervisor |
Mr. Philip Wong |
6908 8920 |
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|
SJ Consultants Hong Kong Limited |
IEC |
IEC |
Ms. Kitty Lee |
3995 8140 |
3422 3631 |
|
Umwelt Consulting Limited |
ET |
ET Leader |
Ms. Josephine Lau |
3756 9590 |
3582 3310 |
2.2.1
The proposed sewerage works will collect the sewage
generated from the unsewered areas of Shui Hau, Tong Fuk, Cheung Sha, San Shek
Wan, Pui O and Ham Tin in South Lantau (i.e. within the Project Catchment Area)
and convey it to a proposed sewage treatment works at San Shek Wan for
treatment and disposal into outer bay of Pui O / Chi Ma Wan via a submarine
outfall.
2.2.2
The Project was divided into 3 contracts. The current contract, Contract No. DC/2020/02
- Construction of San Shek Wan Sewage Treatment Works, Associated Submarine
Outfall and Pui O Sewerage Works (“the Contract”) would have the following
implementations. The works site of the Contract is also given in Figure 2.1.
2.2.3
The major components of the Contract under
Environmental Permit (“EP”) (EP No. EP-538/2017) comprises:
a)
Construction of a secondary sewage treatment works
(“STW”) at San Shek Wan in South Lantau;
b)
Construction of a sewage pumping station (“SPS”) at Pui
O, San Shek Wan, Cheung Sha and Cheung Fu Street;
c)
Construction of about 1.4km of submarine outfall with
a diameter of 350mm for the disposal of treated effluent from the STW at San
Shek Wan;
d)
Construction of about 10.1km of gravity sewers with
diameters ranging from 150mm to 375mm along South Lantau Road and Chi Ma Wan road and at Pui O; and
e)
Construction of about 3.1km twin rising mains with a
diameter of 200mm to 250mm along South Lantau Road and Chi Ma Wan Road.
2.3.1
In the reporting month, the principal work activities
conducted are as follow:
a)
Excavation, sewer laying, construction of manhole at
Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma Wan Road
b)
Trenchless drilling works (Chi Ma Wan Road)
c)
Excavation and ELS work at POSPS
d)
Superstructure RC works at SSWSTW
e)
Waterproofing Work at SSWSTW
f)
Excavation and Site formation at SSWSTW
g)
Retaining wall construction
at SSWSTW
h)
E&M Installation at POSPS
i)
E&M Installation at SSWSTW
j)
ABWF work at POSPS
k)
ABWF work at SSWSTW
2.3.2
The locations of the works are shown in Figure 2.2.
2.4.1
Noise monitoring location plans with sensitive
receivers are shown in Figure 2.3.
3.1.1
Mitigation measures according to the environmental
mitigation implementation schedule in Annex A of EM&A Manual were generally
implemented by the Contractor. Hence, the EM&A programme was considered
effective and shall be maintained.
3.2.1
Environmental mitigation measures mentioned the EIA
Report were weekly reviewed and recorded in Weekly Environmental Site Audit
Checklist. Also, a summary of the current status on
submissions and measures mentioned in the EP No. EP-538/2017 are shown in Table 3.1.
Table 3.1: Summary of Submission Status under
EP-538/2017
|
EP Condition |
Submission and Revision No. |
Date of Latest Submission |
|
2.10 |
Waste Management Plan (Rev. 5) (electronic copy) |
4 April 2022# |
|
2.11 |
Preservation and/or Transplantation Plan for Plant
Species of Conservation Importance (Rev. 23) |
9 September 2022# |
|
2.12 |
Compensatory Woodland Planting Plan (Rev. 23) |
15 May 2023^ |
|
2.13 |
Silt Curtain Deployment Plan (Rev. 11) |
1 June 2022# |
|
2.14 |
Landscape Mitigation Plan |
To be confirmed |
|
2.15 |
Construction Noise Mitigation Plan (Rev. 20) |
4 August 2022# |
Note:
^ Submission
was made to EPD
# Approval
from EPD was received
3.3.1
A summary of the current status
on licences and/or permits on environmental protection pertinent to the Project
is shown in Table 3.2.
Table 3.2: Summary of the Current Status on Licences
and/or Permits on Environmental Protection Pertinent to The Project
|
Permits and/or Licences |
Permit. No. / Account No. |
Issued Date |
Valid Period & Expiry Date |
Status |
|
Notification of Works Under APCO |
466408 |
14 Apr 2021 |
N/A |
Valid |
|
Wastewater Discharge Licence under Water Pollution
Control Ordinance |
SSWSTW: WT00039636-2021 |
30 Dec 2021 |
30 Dec 2021 to |
Valid |
|
POPS: WT00039820-2021 |
31 Dec 2021 |
31 Dec 2021 to |
Valid |
|
|
SSWSTW: Gravity Sewer & Raising Main:
WT00042613-2022 |
09 Jan 2023 |
09 Jan 2023 to |
Valid |
|
|
Billing account under Waste Disposal Ordinance |
Account No.: 7040411 |
05 May 2021 |
N/A |
Valid |
|
Registration as a Chemical Waste Producer |
WPN 0000-931-K3428-01 |
13 May 2021 |
N/A |
Valid |
|
Construction Noise Permit under Noise Control
Ordinance for SSWSTW |
GW-RS0087-26 |
30 Jan 2026 |
13 Feb 2026 to 12 Aug 2026 |
Valid |
|
Construction Noise Permit under Noise Control
Ordinance for POSPS |
GW-RS0740-26 |
22 Jun 2026 |
27 Jun 2026 to
26 Dec 2026 |
Valid |
Note: Only valid permits or permits under applications
within the reporting month are included.
3.4.1
Within this reporting month, weekly environmental site
inspections were conducted on 3, 6, 13, 20 and
31. IEC attended the SSEMC meeting held on 20 July 2026. The ET and contractor participated in the holding
nursery visit for transplanted trees on 31 July 2026.
3.4.2
No non-compliance was found during the site inspections
while reminders on environmental measures were recommended. Reminders and/or
Observations recorded during site inspections in this reporting month are
listed in Table 3.3.
Table 3.3: Summary of Environmental Inspections
|
Inspection Date |
Reminder and Recommendations |
Close-out Date / Status |
|
3 July 2026 |
Pui O Sewage Pumping Station No Reminder and/or
Observation San Shek Wan Sewage Treatment Works Reminder 1: The contractor is
reminded to clean construction debris |
Contractor has rectified on 6 July 2026 |
|
6 July 2026 |
Pui O Sewage
Pumping Station No Reminder and/or
Observation San Shek Wan
Sewage Treatment Works Reminder 1: The contractor is
reminded to clean construction debris |
Contractor has rectified on 13 July 2026 |
|
13 July 2026 |
Pui O Sewage
Pumping Station No Reminder and/or
Observation San Shek Wan
Sewage Treatment Works Reminder 1: The contractor is
reminded to maintain the housekeeping |
Contractor has rectified the reminders on 20 July 2026 |
|
20 July 2026 |
Pui O Sewage
Pumping Station No Reminder and/or
Observation San Shek Wan
Sewage Treatment Works Reminder 1: The contractor is
reminded to properly store chemical on site Roadside Works
Site (South Lantau Road) Reminder 1: The contractor is
reminded to properly store chemical on site |
Contractor has rectified the reminder on 27 July 2026 |
|
31 July 2026 |
Pui O Sewage
Pumping Station No Reminder and/or
Observation San Shek Wan
Sewage Treatment Works The contractor is
reminded to maintain the housekeeping Kam Tin Nursery No Reminder and/or
Observation |
To be verified in next
inspection. |
4.1.1
The impact noise monitoring should be carried out at
all the designated monitoring stations when there are project-related
construction activities undertaken within a radius of 300m from the monitoring
stations.
4.1.2
The monitoring station shall normally be at a point 1m
from the exterior of the sensitive receiver’s building façade and be at a
position 1.2m above the ground.
4.1.3
Façade measurements were made at the monitoring
locations. For free-field measurement, a correction factor of +3dB(A) will be
applied.
4.1.4
The battery condition was checked to ensure the
correct functioning of the meter.
4.1.5
Parameters such as frequency weighting, the time
weighting and the measurement time were set as follows:
a)
Frequency weighting: A,
b)
Time weighting: Fast,
c)
Measurement time set: continuous 5 mins
4.1.6
Prior and after to the noise measurement, the meter
was checked using the acoustic calibrator for 94dB (A) at 1000 Hz. If the
difference in the calibration level before and after measurement was more than
±1.0 dB (A), the measurement would be considered invalid and repeat of noise
measurement would be required after recalibration or repair of the equipment.
4.1.7
Noise measurements will be made in accordance with
standard acoustical principles and shall not be made in fog, rain, wind with a
steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The wind speed
shall be checked with a portable wind speed meter capable of measuring the wind
speed in m/s.
4.1.8
Noise monitoring was performed using sound level meter
at the designated monitoring locations. The sound level meters shall comply
with the International Electrotechnical Commission Publications 651:1979 (Type
1) and 804:1985 (Type 1) specifications. Acoustic calibrator shall be deployed
to check the sound level meters at a known sound pressure level. Brand and
model of the equipment is given in Table 4.1.
Table 4.1: Noise Monitoring Equipment
|
Equipment |
Brand and Model |
Serial Number |
Valid Until |
|
Integrated Sound Level Meter |
Rion – NL-52 |
1198668 |
19 Jan 2027 |
|
Acoustic Calibrator |
Rion – NC-75 |
34202223 |
19 Jan 2027 |
|
Rion – NC-75 |
34256525 |
23 Mar 2027 |
4.1.9
The calibration certificates of the noise monitoring
equipment are attached in Appendix 4.1.
4.1.10
The microphone head of the sound level meter was
cleaned with soft cloth at regular intervals.
4.1.11
The sound level meter and calibrator were calibrated
at yearly intervals.
4.1.12
The construction noise level shall be measured in
terms of the A-weighted equivalent continuous sound pressure level (“Leq”). Leq(30min)
should be used as the monitoring parameter. Supplementary information for data
auditing, statistical results such as L10 and L90 shall
also be obtained for reference.
4.1.13
For impact monitoring for construction of village
sewers / rising main, noise monitoring should be undertaken on weekly basis. 1 set of Leq(30min)
noise level as 6 consecutive Leq(5min) between 07:00-19:00 hours
on normal weekdays has been taken.
4.2.1
The noise monitoring stations for the Project are
listed and shown in Table 4.2. Impact noise monitoring was conducted
once per week at the noise monitoring stations with construction works being
conducted nearby. Noise monitoring has been conducted at 8 noise monitoring
stations N12a, N12b, N13, N14, N15b, N16a, N16b and N17 in the reporting month.
4.2.2
Monitoring station N17 Bui O Public School is an
institutional sensitive receiver. During the reporting month, no examination
was conducted, as such the construction noise criteria is 70db(A).
4.2.3
Table 4.2: Noise Monitoring Station
|
Monitoring Station ID + |
Monitoring Location |
Measurement Type |
Level (in terms of no. of floor) |
|
N01a |
Shui Hau Village |
Free-Field |
G/F |
|
N01c |
Shui Hau Village |
Free-Field |
G/F |
|
N03a |
Tong Fuk Village |
Free-Field |
G/F |
|
N05a |
Residences at Cheung Fu Street |
Free-Field |
G/F |
|
N07 |
Government Holiday Bungalows |
Free-Field |
G/F |
|
N08 |
Cheung Sha Ha Tsuen |
Free-Field |
G/F |
|
N10 |
Cheung Sha Sheung Tsuen |
Façade |
G/F |
|
N11b |
San Shek Wan – Ming Garden |
Free-Field |
G/F |
|
N12a * |
Lo Uk Tsuen |
Free-Field |
G/F |
|
N12b * |
Lo Uk Tsuen |
Free-Field |
G/F |
|
N13 * |
Pui O San Wai Tsuen |
Free-Field |
G/F |
|
N14 * |
South Lantau Community Centre |
Free-Field |
G/F |
|
N15b * |
Pui O Lo Wai Tsuen |
Façade |
G/F |
|
N16a * |
Residences at Ham Tin |
Façade |
G/F |
|
N16b * |
Residences at Ham Tin |
Free-Field |
G/F |
|
N17 * |
Bui O Public
School |
Façade |
R/F |
NOTE:
+ Fine
adjustment of noise monitoring stations at all locations was proposed as per EP
Condition 3.1.
* Measurement
was conducted at the station in the reporting month.
4.3.1
For daytime construction work on normal weekdays,
monitoring of Leq(30min) should
be carried out at each station at 0700-1900 hours on normal weekdays at a
frequency of once a week. Impact monitoring schedule can be referred to Appendix
4.2.
4.4.1
Noise monitoring results measured in this reporting
period are reviewed and summarized. Details of noise monitoring results and
graphical presentation can be referred in Appendix 4.3.
4.4.2
No action or limit level
exceedance was recorded in construction noise level in this reporting period.
5.1.1
Subsequent to the completion of
marine work on 24 May 2025, water quality monitoring was considered
completed by 30 May 2025. No water quality monitoring is conducted in this
reporting month.
5.1.2
Should marine works resume, water quality monitoring will be conducted
in accordance with the requirement stipulated in the EM&A Manual
accordingly.
6.1.1
The weekly site audit to be carried out by the ET
should include checking whether good site practices are being properly
implemented by the Contractor
6.1.2
Impact monitoring of the transplanted Aquilaris sinensis at holding nursery and 1 retain tree of Aquilaris
sinensis in SSWSTW Project Site, establishment and after-establishment
caring measures of the compensatory mixed woodland to ensure the affected tree
would not be affected by any unacceptable construction works. The trees would
be treated with establishment works immediately after transplanting.
6.1.3
Site inspection at the
nursery was conducted on 31 July 2026. No reminder was recorded.
6.2.1
The extent of the work site boundaries should be
checked by the ET during the weekly site audit. Any disturbance by the
Contractor outside the works area especially any damage to the vegetation and
surrounding habitats outside the Project area shall be reported to ER and IEC.
6.2.2
To identify any unacceptable construction works for
the trees of Aquilaris sinensis during
transplanting, establishment and after-establishment caring measures of the
compensatory mixed woodland.
6.3.1
As per latest version of PTP, 4 trees found (1 no. of Aquilaria sinensis and 3
nos. of Gmelina chinensis) within the site of SSWSTW (Figure 6.1) which are considered to be the plant species with
conservative importance for temporarily transplanted to the nursery (Figure 6.2) at Kam Tin and eventually be transplanted to Pui O
Pumping Station.
6.4.1
The recommended good site practices to be audited once
every week as part of the site audit programme. The weekly site audit to be
carried out by the ET includes checking whether good site practices are being
properly implemented by the Contractor. Results are recorded in Weekly
Environmental Site Audit Checklist.
6.4.2
Monitoring programme for
post-transplantation was conducted on 31 July 2026.
6.5.1
The weekly site audit was carried out by ET include
checking whether good site practices are being properly implemented by the
Contractor.
6.5.2
The extent of the work site boundaries was checked by
the ET during the weekly site audit.
6.5.3
Results and findings of site audit in this reporting
month are listed in Table 3.3.
7.1.1
The quantities of waste for disposal in the Reporting
Period are summarized in Table 7.1. The Monthly
Summary Waste Flow Table is shown in Appendix 7.1.
Table 7.1: Summary of Quantities of Waste Material
|
Waste
Type |
Quantity
this month |
Quantity
(the end of last month) |
Cumulative
Quantity-to-Date |
|
Hard
Rock and Large Broken Concrete (Inert), in ‘000m3 |
0 |
0 |
0 |
|
Reused
in this Contract (Inert), in ‘000m3 |
0 |
0 |
0 |
|
Reused
in other Projects (Inert), in ‘000m3 |
0 |
0 |
0 |
|
Disposal
as Public Fill (Inert), in ‘000m3 |
0.15 |
0.2 |
31.998 |
|
Metals,
in ‘000kg |
0.004 |
0 |
142.266 |
|
Paper
/ Cardboard Packing, in ‘000kg |
0.049 |
0 |
1.838 |
|
Plastics,
in ‘000kg |
0.004 |
0 |
0.134 |
|
Chemical
Wastes, in ‘000kg |
0 |
0 |
0.36 |
|
General
Refuses, in ‘000kg |
65.53 |
34.47 |
1683.25 |
|
Marine
Sediment (Type 1 – Open Sea Disposal), m3 |
0 |
0 |
1360.2 |
|
|
|||
8.1.1
No environmental complaint was recorded in the
reporting month.
8.1.2
No notification of summons and successful prosecution
regarding construction works were recorded in the reporting month.
8.1.3
Cumulative statistic on complaints, summary of
complaints and successful prosecutions are summarized in Table 8.1, Table 8.2 and Table 8.3 respectively.
Table 8.1: Cumulative Statistics on Complaints
|
Reporting Period |
No. of Complaints |
|
Project commencement to the end of last reporting
month |
4 |
|
This Reporting Month (July 2026) |
0 |
|
Total: |
4 |
Table 8.2: Summary of Complaints
|
Date of Notification from EPD |
Date of Complaint |
Description of Complaint |
Validity of Complaint |
Close-Out Date / Status |
|
26 May 2022 |
22 May 2022 |
A complaint is regarding to noise nuisance from
marine site of San Shek Wan, Lantau Island. |
Based on the investigation, the works activities of
marine works did not result in any noise nuisance to Noise Sensitive
Receivers (NSRs), noise nuisance from the Project is unlikely to be valid. |
The interim report was submitted to EPD in June
2022. EPD replied no further comments on the final investigation report on 13
July 2022. |
|
23 Dec 2022 |
21 Dec 2022 |
A complaint is regarding to the water quality for
Pui O Beach, Lantau Island. |
Based on the investigation, the works activities at
POPS did not result in any water quality impacts to the Pui O Beach. |
The interim report was submitted to EPD on 4 Jan
2023. |
|
16 Aug 2024 |
15 Aug 2024 |
A complaint is regarding to the damaged silt curtain
and potential water quality impact. |
Based on the investigation, no marine works since
Dec 2023 till present, the land-based works activities at POPS did not result
in any water quality impacts to the Pui O Wan |
The interim report was submitted to EPD on 31 Aug
2024. |
|
16 Sep 2025 |
16 Sep 2025 |
A complaint is regarding to oil sheen observed at
Pui O Wetland, Lantau Island. |
Based on the investigation, no evidence of oil
leakage within our project site, it is considered that the oil pollution
would not due to our site operation. As such the
case is considered closed. |
The Final Investigation Report was submitted to EPD
by 17 Oct 2025. |
Table 8.3: Cumulative Statistics on Successful
Prosecutions
|
Environmental Parameters |
Cumulative No. Brought Forward |
No. of Successful Prosecutions this month (Offence
Date) |
Cumulative No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Water |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Other |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
9.1.1
In coming reporting 3 months, the
scheduled construction activities are listed as follows:
Ø Excavation, sewer
laying, construction of manhole at Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma
Wan Road
Ø Excavation and
site formation at SSWSTW
Ø Trenchless
drilling works (Chi Ma Wan Road)
Ø Excavation and
ELS work at POSPS
Ø Superstructure RC
works at SSWSTW
Ø Waterproofing
Work at SSWSTW
Ø Excavation wall construction at SSWSTW
Ø Retaining wall
construction at SSWSTW
Ø E&M
Installation at POSPS
Ø E&M
Installation at SSWSTW
Ø ABWF work at
POSPS
Ø ABWF work at
SSWSTW
Ø Slope Work near SSWSTW
9.1.2
The scheduled construction activities and the
recommended mitigation measures for the coming 3 months are listed in Table 9.1. The major
construction activities for the next 3 months are summarized in 3 Months Rolling Programme – August to October 2026 in Appendix 9.1
Table 9.1: Construction Activities and Recommended
Mitigation Measures in Coming Reporting 3 Months
|
Key
Construction Works |
Recommended
Mitigation Measures |
|
·
Excavation, sewer laying, construction
of manhole at Pui O Lo Uk Tsuen, South Lantau Road, Chi Ma Wan Road ·
Excavation and site formation at SSWSTW ·
Trenchless drilling works (Chi Ma Wan
Road) ·
Excavation and ELS work at POSPS ·
Superstructure RC works at SSWSTW ·
Waterproofing Work at SSWSTW ·
Excavation and site formation at SSWSTW ·
Retaining wall construction at SSWSTW ·
E&M Installation at POSPS ·
E&M Installation at SSWSTW ·
ABWF work at POSPS ·
ABWF work at SSWSTW ·
Slope Work near SSWSTW |
·
Prevention of site runoff
during heavy rainstorms. ·
Implementation of noise
pollution control in accordance with Construction Noise Mitigation Plan; ·
Dust control during dust
generating works; ·
Adopt surface drainage
and sediment control facilities for sewage installation in village and public
roads; ·
Adopt temporary drainage
and sediment control facilities on Site; ·
Regular water spraying on
excavation works for dust control; and ·
Proper waste handling,
recycling and storage. |
10.1.1
Noise Monitoring has been conducted at 8 of the
designated monitoring locations where construction works has been conducted
nearby during the reporting month.
10.1.2
No action or limit level
exceedance was recorded in construction noise level in this reporting period.
10.2.1
Subsequent to the completion of
marine work on 24 May 2025, water quality monitoring was considered
completed by 30 May 2025. No water quality monitoring is conducted in this
reporting month.
10.3.1
Transplanting of the trees of Aquilaris
sinensis was completed on 26 April 2022. Maintenance works for trees in
holding nursery have commenced.
10.3.2
As per latest version of PTP, 4 trees found (1 no. of Aquilaria sinensis and 3
nos. of Gmelina chinensis) within the site of SSWSTW which are
considered to be the plant species with conservative importance for temporarily
transplanted to the nursery at Kam Tin and eventually be transplanted to Pui O
Pumping Station.
10.3.3
The weekly site audit was carried out by ET include
checking whether good site practices are being properly implemented by the
Contractor.
10.3.4
The extent of the work site boundaries was checked by
the ET during the weekly site audit.
10.3.5
Within this reporting
period, holding nursery visit for transplanted trees on 31 July 2026.
10.3.6
No non-compliance was found during the site inspection
while reminders on environmental measures were recommended. Results and
findings of these inspections in this reporting period are listed below in Table 10.1
Table 10.1: Summary of Ecological Impact Monitoring
|
Inspection
Date |
Reminder
and Recommendations |
Close-out
Date / Status |
|
31 July 2026 |
No Reminder and/or
Observation |
N/A. |
10.4.1
No environmental non-compliance was recorded in the
reporting month.
10.5.1
There was no particular action taken since no
non-compliance was recorded in the reporting month.
10.5.2
The performance of the environmental management system
of the reporting period was generally satisfied. Mitigation measures according
to the environmental mitigation implementation schedule and the EIA were
generally implemented by the Contractor. Hence, the EM&A programme was
considered effective and shall be maintained.
10.6.1
No complaints were recorded in the reporting month.
10.6.2
No notification of summons and successful prosecution
regarding construction works were recorded in the reporting month.