Contents
2.1.1
Monitoring Requirements and Equipment
2.1.2
Results and Observations
2.2.1
Monitoring Requirements and Equipment
2.2.2
Results and Observations
2.3.1
Monitoring Requirements and Equipment
2.3.2
Results and Observations
2.4.1
Egretry Monitoring Requirements
2.4.2
Egretry Monitoring Methodology
2.4.3
Results and Observations of Egretry Monitoring
2.4.4
Flight Corridor Monitoring Requirements
2.4.5
Flight Corridor Monitoring Methodology
2.4.6
Results and Observations of Flight Corridor Monitoring
2.8 Summary oF Complaints,
Notification OF Summons AND Successful Prosecutions
Annex
B Construction
Programme
Annex
C2 The graphical
plots of the trends (AIR QUALITY MONITORING)
Annex
c3 Event and action
plan
Annex
D1 The graphical plots of the
trends (Noise MONITORING)
annex
d2 event and action plan
Annex
E1 The graphical
plots of the trends (water quality MONITORING)
Annex G2 Mitigation Measures Implementation Status
List
of Tables
Table 1.2 Contact Information of Key Personnel
Table 1.3 Major CONStRUCTION WORKS IN THE REPORTING
PERIOD
Table 1.4 Summary of Status for the Environmental
Aspects under the EM&A Manual
Table 2.1 Action and Limit Levels for Air Quality
(Dust)
Table 2.2 Air Quality Monitoring Details
Table 2.3 Summary of 1-Hour RSP Monitoring Results
in the Reporting Period
Table 2.4 Summary of 24-hour rolling average RSP
Monitoring Results in the Reporting Period
Table 2.5 Summary of 24-hour rolling average FSP
Monitoring Results in the Reporting Period
Table 2.6 Action and Limit Levels for Construction
noise
Table 2.7 Noise Monitoring Details
Table 2.8 Summary of Construction Noise Monitoring
Results in the Reporting Period
Table 2.9 Calculated Action and Limit Levels for
Water Quality
Table 2.10 Locations of Impact Water Quality Monitoring
Stations and Monitoring Requirements
Table 2.11 SUMMARY OF impact water quality MONITORING
RESULTS IN THE REPORTING PERIOD
Table 2.12 Summary of EXCEEDANCES RECORDED FOR water QUALITY
MONITORING in the reporting period
Table 2.13 number of nests and ardeids recorded at MPV
Egretry
Table 2.14 usage of flight paths recorded at MPV egretry
Table 2.15 usage of flight paths and flight heights
recorded at mpv egretry
Table 2.16 number of nests and ardeids recorded at MPLV
Egretry
Table 2.17 usage of flight paths recorded at MPLV egretry
Table 2.18 usage of flight paths and flight heights
recorded at mpLv egretry
Table 2.19 number of Birds recorded at the Flight Corridor
Table 2.20 usage of flight paths recorded at the Flight
Corridor
Table 2.21 usage of flight paths and flight heights
recorded at the Flight Corridor
Table 2.22 Key Observations Identified during the site
inspection in this Reporting Month
Table 2.24 Statistics on environmental complaint, notification
of summons or Successful prosecution
List
of Figures
FIGURE
1.1 Location of Project
FIGURE
2.1 Locations of Air Quality Monitoring Stations
FIGURE
2.2 Locations of Noise Monitoring Stations
FIGURE
2.3 Location of Water Quality Monitoring Stations
FIGURE
2.4 Location of Egretry and 100m Buffer Area
FIGURE
2.5 Location of Egretry and Vantage Points
FIGURE
2.6 Flight Paths at MPV and MPLV Egretries
FIGURE
2.7 Location of Egretry and 100m Buffer Area
(recorded in EIA and in 2025)
FIGURE
2.8 Location of 300m Flight Corridor and Vantage
Point for Flight Corridor Monitoring
FIGURE 2.9
Flight Paths Observed at the 300m Flight Corridor
This is
the Quarterly Environmental Monitoring and Audit (EM&A) Report presenting
the EM&A works during the period of June 2026 - August 2026 for the San Tin
Technopole Phase 1 Development (the Project) in accordance with the EM&A
Manual. Three (3) works contracts, Package 1 Contract 1 (ND/2024/09),
Package 2 Contract 1 (ND/2024/10) and Contract 2 (ND/2025/01), are active in
this reporting period.
· The construction of ND/2024/09
commenced on 29 September 2025;
· The construction of ND/2024/10
commenced on 18 September 2025 and
· The construction of ND/2025/01
commenced on 1 August 2026.
A summary
of EM&A activities conducted in the reporting period is listed below:
Air
Quality Monitoring
Continuous impact
monitoring
Noise
Monitoring
• ND/2024/09
13 sessions
• ND/2024/10
13 sessions
• ND/2025/01
4 sessions
Water
Quality Monitoring
• ND/2024/09
39 sessions
• ND/2024/10
39 sessions
• ND/2025/01
13 sessions
Ecological Monitoring
2 sessions for Pre-construction Site Check and Nest Control
1 session for Flight Corridor Monitoring
3 sessions for Mai Po Lung Village (MPLV) Egretry
3 sessions for Mai Po Village (MPV) Egretry
6 sessions for Pre-construction
survey for Fauna Species for conservation importance
1 session for
Pre-construction Vegetation Survey
Environmental
Site Inspection
• ND/2024/09
14 sessions
• ND/2024/10
13 sessions
• ND/2025/01
4 sessions
During
the reporting period, the frequency of all monitoring works
followed the requirements of the EM&A Manual, and all equipment used had
valid calibration certificates. The weather conditions were predominantly sunny and partly cloudy, providing
generally favorable circumstances for conducting impact monitoring of air
quality, noise, and water quality.
No
exceedance of Action and Limit Levels was recorded for impact noise monitoring
in the reporting period.
No
Project-related Action or Limit level exceedance was recorded in the reporting
period. A total of one (1) Action Level and one (1) Limit Level exceedances
were recorded for impact water quality monitoring, investigation was conducted,
and all exceedances were confirmed to be not Project‑related. Therefore, no further
action under the Event and Action Plan was required.
Environmental Complaints, Non-compliance & Summons
There was
no environmental notification of summons or prosecution recorded in the
reporting period. One (1) complaint related to waste management was received
under Contract No. ND/2024/09 on 25 June 2026. An investigation was conducted
by the ET and no evidence was identified to
indicate that the source of the problem was due to works activities. Therefore,
no additional mitigation measures were required to be implemented by the
Contractor. The case was subsequently closed.
There was no reporting change in the reporting period.
San Tin
Technopole Phase 1 Development (“the Project”) mainly covers innovation &
technology (I&T) land parcels to the north of San Tin Highway/Fanling Highway, some residential land to the south and the
key infrastructure areas with road connections. The construction of the Project
will be delivered under various works contracts and
its scope of works comprises the following elements:
• Site formation of land for
innovation and technology development, housing, community, commercial and other
developments;
• Engineering infrastructure works
including but not limited to roadworks, drainage, sewerage, waterworks, pumping
stations, fresh water and flushing water service reservoirs, Common Utility
Tunnel (CUT) and other associated buildings / structures / E&M systems for
the Project; and
• Landscaping works;
The
Environmental Impact Assessment (EIA) Report for the San Tin/Lok Ma Chau
Development Node (STLMC DN) (Register No. AEIAR-261/2024) was
approved on 17 May 2024. Three (3) works contracts, ND/2024/09, ND/2024/10 and
ND/2025/01, are active in this reporting period. The construction of
ND/2024/09 commenced on 29 September 2025, the construction of ND/2024/10
commenced on 18 September 2025 and the construction of ND/2025/01 commenced on
1 August 2026. The location of the Project, including the associated works
areas of each active works contract is shown in Figure 1.1. The relevant
Environmental Permits (EPs) under the Project and the respective works
contracts are summarized in Table 1.1.
Table 1.1 Summary of Environmental Permits under the
Project and the Respective Active Works Contracts
|
EP |
Designated Project |
Work Contracts |
||
|
ND/2024/09 |
ND/2024/10 |
ND/2025/01 |
||
|
EP-640/2024 |
San Tin / Lok Ma Chau Water
Reclamation Plant |
P |
|
|
|
EP-641/2024 |
San Tin / Lok Ma Chau Effluent
Polishing Plant |
P |
|
|
|
EP-664/2025 |
Revitalisation of San Tin Eastern Main Drainage
Channel |
|
|
|
|
EP-665/2025 |
Recreational Development (“Open
Space”) along San Tin Western Main Drainage Channel and at Mai Po Lung
Village within Deep Bay Buffer Zone 2 |
|
|
|
|
EP-666/2025 |
New Primary Distributor Road (Road
P1) and District Distributor Roads (Roads D1, D2, D3, D4, D5 and D6) for San
Tin / Lok Ma Chau Development Node |
P(a) |
|
P(b) |
(a)
construction activity will commence on 24 September 2026
(b)
construction activity under ND/2025/01 was commenced at non-DP area only
in the reporting period.
ERM-Hong
Kong, Limited (ERM) is commissioned to undertake the role of Environmental Team
(ET) for the Project in accordance with the requirements specified in the
Environmental Permit(s), the Environmental Monitoring and Audit (EM&A)
Manual, the EIA Report of the STLMC DN project and other relevant statutory
requirements.
This is
the Quarterly EM&A Summary Report for the Project which summarises
the key findings of the EM&A programme during the
reporting period from June 2026 to August 2026.
The organisation
structure of the Project is shown in Annex A. The key personnel contact names and
details are summarised in Table 1.2 below.
Table 1.2 Contact Information of Key Personnel
|
Party |
Position |
Name |
Telephone |
|
San Tin Technopole
Project hotline |
-- |
-- |
3152 3537 |
|
Environmental Team
(ET) (ERM-Hong Kong, Limited) |
ET Leader |
Raymond Chow |
2271 3281 |
|
|
ET Leader
Representative (EP-640/2024) |
Manson Yeung |
2271 3012 |
|
|
ET Leader
Representative (EP-641/2024) |
Pako Yu |
2271 3027 |
|
Independent
Environmental Checker (IEC) (Mott MacDonald Hong
Kong Limited) |
IEC |
Thomas Chan |
2828 5967 |
|
IEC Representative (EP-640/2024) |
Sunny Chan |
2828 5962 |
|
|
IEC Representative (EP-641/2024) |
Jay Chua |
2828 5710 |
|
|
Contract
No. ND/2024/09 |
|||
|
Civil Engineering and
Development Department |
Senior Engineer |
Vicky W.K. Yuen |
3426 2590 |
|
Engineer |
Stanley C.Y. Hung |
3152 3564 |
|
|
Engineer’s
Representative (ER) (AECOM - Halcrow Joint
Venture) |
Chief Resident
Engineer |
Albert Yu |
8493 0329 |
|
Senior Resident
Engineer |
Timonthy Chan |
8494 6981 |
|
|
Senior Resident
Engineer |
Tony Chan |
8491 4870 |
|
|
Contractor (CR15G - Tung Lee
Joint Venture) |
Construction Manager |
K. K. Yuen |
9498 1213 |
|
Site Agent |
Wilson Chan |
9656 8865 |
|
|
Sub Agent |
Paul So |
5989 0614 |
|
|
Environmental Officer |
Frank Liu |
6900 3526 |
|
|
Environmental
Supervisor |
Johnny Kam |
6178 4786 |
|
|
Contract
No. ND/2024/10 |
|||
|
Civil Engineering and
Development Department |
Senior Engineer |
Albert S. Lam |
3547 1635 |
|
Engineer |
Patrick P.L. Wan |
3152 3472 |
|
|
Engineer’s
Representative (ER) (Arup - Binnies Joint
Venture) |
Chief Resident
Engineer |
Victor Go |
2608 7688 |
|
Senior Resident
Engineer |
Raymond Cheung |
2908 4924 |
|
|
Contractor (Kuly
Construction & Engineering Company
Limited) |
Senior Project Manager |
Ma Kin Man |
9552 1734 |
|
Site Agent |
Tang Wing Kai |
9300 7037 |
|
|
Environmental Officer |
Brenda Yiu |
9346 3966 |
|
|
Contract
No. ND/2025/01 |
|||
|
Civil Engineering and
Development Department |
Chief Engineer |
S. P. Chow |
3152 3399 |
|
Senior Engineer |
Tony Tong |
3152 3507 |
|
|
Engineer |
Cherry Suen |
3152 2876 |
|
|
Engineer’s
Representative (ER) (Arup - Binnies Joint
Venture) |
Chief Resident
Engineer |
Victor Go |
2608 7688 |
|
Senior Resident
Engineer |
Roy Lau |
6386 5410 |
|
|
Contractor (CRBC – Maylon Joint
Venture) |
Site Agent |
Wilmer Ng |
6313 4818 |
|
Environmental Manager |
Calvin So |
9724 6254 |
|
|
Environmental Officer |
Karen Leung |
5239 3606 |
|
As informed by the Contractor, details of the
major construction works carried out in this reporting
period are listed in Table 1.3. The construction programme is shown in Annex B.
Table 1.3 Major CONStRUCTION WORKS IN THE REPORTING PERIOD
|
June
2026 |
July
2026 |
August
2026 |
|
Contract
No. ND/2024/09 |
||
|
• Site Formation Works (Area C) • Operation of Shredding Facilities • Vegetation Removal Works (Pond C) • Asbestos Survey • Tree Felling Works • Ground Investigation (soil
sampling) for contaminated soil treatment • GI works • Arsenic soil treatment |
• Site Formation Works (Area C) • Operation of Shredding Facilities • Vegetation Removal Works (Pond B) • Pond reprofiling works (Pond D and
E) • Desilting and marine disposal
(Channel C) • Tree Felling Works • Ground Investigation (soil
sampling) for contaminated soil treatment • GI works • Arsenic soil treatment • Asbestos Abatement Works |
• Site Formation Works (Area C) • Operation of Shredding Facilities • Reuse of marine disposal from
Channel G • Tree Felling Works • Arsenic soil treatment |
|
Contract
No. ND/2024/10 |
||
|
• Ground Investigation Work • Construction for Box Culvert • Construction of Sewerage Pipe •
Construction of
Containment Wall |
•
Ground Investigation Work •
Construction for Box Culvert •
Construction of Sewerage Pipe •
Construction of Containment Wall • Site Formation
Works |
• Construction for Box Culvert • Construction of Sewerage Pipe • Construction of containment wall • Construction of Site Formation |
|
Contract
No. ND/2025/01 |
||
|
- |
- |
• Site clearance and demolition works • Tree felling works • Ground investigation works • Environmental ground investigation
works for contaminated soil • Ground improvement works (Part 1C) |
The
status for all environmental aspects is presented in Table 1.4.
The EM&A programme requirements remained unchanged during the reporting
period.
Table 1.4 Summary of Status for the Environmental Aspects under the EM&A Manual
|
Parameters |
Status |
|
Air Quality |
|
|
Impact Monitoring |
On-going for Contract Nos. ND/2024/09 and ND/2024/10.
ND/2025/01 commenced on 1 August 2026, monitoring conducted continuously |
|
Noise |
|
|
Baseline Monitoring |
The results of baseline noise monitoring for Contract Nos. ND/2024/09
and ND/2024/10 and ND/2025/01 were reported in Baseline Monitoring Report and
submitted to EPD under the EM&A Manual Section 16.3 and EP Condition 3.3. The works area of ND/2025/01 will be expanded in September 2026,
baseline monitoring commenced in August 2026. |
|
Impact Monitoring |
On-going for Contract Nos. ND/2024/09 and ND/2024/10. ND/2025/01
commenced on 1 August 2026, monitoring conducted once per week |
|
Water Quality |
|
|
Baseline Monitoring |
The results of baseline water quality monitoring for Contract Nos.
ND/2024/09 and ND/2024/10 were reported in Baseline Monitoring Report and
submitted to EPD under the EM&A Manual Section 16.3 and EP Condition 3.3. The works area of ND/2025/01 will be expanded in September 2026,
baseline monitoring commenced in August 2026. |
|
Impact Monitoring |
On-going for Contract Nos. ND/2024/09 and ND/2024/10. ND/2025/01
commenced on 1 August 2026, monitoring conducted 3 days per week |
|
Waste Management |
|
|
Waste Monitoring |
On-going |
|
Land Contamination |
|
|
Contamination Assessment Plan (CAP), Remediation Action Plan (RAP) and
Remediation Report (RR) |
On-going |
|
Ecology |
|
|
Wetland Compensation Monitoring (Monitoring on Construction Phase
Disturbance) |
The 12-month baseline monitoring was completed under NDO 08/2024. To
be conducted when construction activities occur within 400m from the
contiguous pond / wetland habitats on the northern portion of the Project
area. The monitoring will commence in September 2026. |
|
Wetland Compensation Monitoring (Monitoring on Wetland Enhancement) |
The 12-month baseline monitoring was completed under NDO 08/2024. To
be conducted at certain milestones between the commencement of pond filling
and the full operation of San Tin Technopole. |
|
Night Roost Monitoring |
Pre-construction Night Roost Survey commenced in September 2025 and
completed in March 2026, a standalone report was prepared. The monitoring
will commence in September 2026. |
|
Egretry Monitoring |
On-going between March and early September. |
|
Flight Corridor Monitoring |
Flight Corridor Monitoring commenced in August 2026. |
|
Woodland Compensation Monitoring |
To be conducted after completion of compensatory planting. |
|
Pre-construction Vegetation Survey |
Pre-construction Vegetation Survey for contract ND/2025/01 commenced in
May 2026, a standalone report for the survey will be prepared. |
|
Post-transplantation / Post-seedling Planting Monitoring of Flora
Species of Conservation Importance |
To be conducted after the transplantation / seedling planting. |
|
Pre-construction Survey for Fauna Species of Conservation Importance |
Pre-construction Survey for Fauna Species of Conservation Importance
for contract ND/2025/01 commenced in July 2026, a standalone report for the
survey will be prepared. |
|
Post-translocation Monitoring of Fauna Species of Conservation
Importance |
To be conducted after the translocation in August 2026 for contract
ND/2025/01. |
|
Pre-construction Site Check and Nest Control |
Pre-construction Site Check and Nest Control commenced in March 2026
and completed in July 2026. The associated nest control measures to be
conducted in non-breeding season (August to February) after pre-construction
survey. The standalone reports were prepared. |
|
Pre-construction Site Check for Eurasian Otter |
To be conducted prior to the commencement of construction activities. |
|
Wildlife Corridor Monitoring |
To be conducted upon establishment of the wildlife corridors. |
|
Site Environmental Audit |
|
|
Regular Site Inspection |
On-going |
|
Environmental Log Book |
On-going |
The
EM&A programme also involved environmental site
inspections and related auditing conducted by the ET for checking the
implementation of the required environmental mitigation measures recommended in
the approved EIA Report and relevant EP submissions. Details of the EP
submissions status shall be referred to corresponding EM&A reports.
The environmental licenses and
permits, including EP, discharge license under Water Pollution Control
Ordinance, registration as chemical waste producer, construction noise permit
and specified processes license, which were valid in the reporting period are
presented in corresponding EM&A monthly report. No
non-compliance with environmental statutory requirements was recorded in the
reporting period.
According
to the EM&A Manual of the Project, impact air quality monitoring in terms
of 1-hour average Respirable Suspended Particulate (RSP), 24-hour rolling
average RSP and 24-hour rolling average Fine Suspended Particulate (FSP)
concentrations, was conducted continuously with air sensors. The results
of these monitoring parameters are compared with the corresponding Action and
Limit levels listed in Table 2.1.
Table 2.1 Action and Limit Levels for Air Quality (Dust)
|
Parameter |
Action Level |
Limit Level |
|
1-hour RSP |
150 μg/m3 |
Not applicable |
|
24-hour RSP (rolling average) |
Not applicable |
100 μg/m3 |
|
24-hour FSP (rolling average) |
Not applicable |
50 μg/m3 |
The
monitoring locations and air sensors used in the continuous impact air quality
monitoring are summarised in Table 2.2 and
illustrated in Figure 2.1.
The copies of the calibration certificates for the onsite air sensors at the
monitoring stations and the transfer standards shall be referred to
corresponding Monthly EM&A reports.
Table 2.2 Air Quality Monitoring Details
|
Monitoring Station |
Relevancy to Works Contract |
Location |
Equipment |
|
M02 |
ND/2025/01 |
Ha Wan Fisherman San Tsuen |
MAS-Dust (S/N: dev9204Z250700025) |
|
M03 |
ND/2024/10 & ND/2025/01 |
Pun Uk Tsuen |
MAS-Dust (S/N: dev9204Z250700007) |
|
M04 |
ND/2024/10 & ND/2025/01 |
Chau Tau Tsuen |
MAS-Dust (S/N: dev9204Z250700006) |
|
M06 |
ND/2024/09 |
Mai Po San Tsuen |
MAS-Dust (S/N: dev9204Z250800014) |
|
M09 |
ND/2024/10 & ND/2025/01 |
Wing Ping Tsuen |
MAS-Dust (S/N: dev9204Z250700005) |
|
M10 |
ND/2025/01 |
Village house near San Tin Siu Hum Tuen |
MAS-Dust (S/N: dev9204Z250700026) |
|
M11 |
ND/2024/09 |
Shek Wui Wai |
MAS-Dust (S/N: dev9204Z250800013) |
|
M13 |
ND/2024/09 |
Rolling Hills (rooftop area) |
MAS-Dust (S/N: dev9204Z250800016) |
|
M14 |
ND/2024/09 |
Rolling Hills (outside of Rolling Hills) |
MAS-Dust (S/N: dev9204Z250800015) |
|
M15a (a) |
ND/2024/09 |
The STEP |
MAS-Dust (S/N: dev9204Z250900019) |
(a)
The permission from the property management office of M15a – The STEP
has been granted in October 2025. The air quality monitoring at M15a
commenced on 18 October 2025.
During
the reporting period, weather conditions were predominantly sunny and partly
cloudy, providing generally favorable circumstances for conducting impact
monitoring of air quality. Wind conditions during the reporting period
extracted from the Hong Kong Observatory (HKO)’s weather station at Wetland
Park are presented in Annex C1. Starting from April 2026, wind data were
extracted directly from the Hong Kong Observatory (HKO) via DATA.GOV.HK to
ensure completeness and accuracy.
The
monitoring data for 1-hour RSP, 24-hour rolling average RSP and 24-hour rolling
average FSP concentrations in the reporting period are summarized in Table
2.3 to Table 2.5. Major dust sources in the reporting period
included haul road traffic and earth moving construction activities associated
with the site formation works and tree felling works. The graphical plots
of the trends of monitored parameters (the last month of the previous quarter
and the present quarter) are provided in Annex C2.
Table 2.3 Summary of 1-Hour RSP Monitoring Results in the Reporting Period
|
Monitoring Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
M02 |
19.9 |
4.2 - 45.6 |
150 |
Not applicable |
|
M03 |
5.9 |
0.9 - 24.6 |
150 |
Not applicable |
|
M04 |
16.5 |
4.0 - 44.2 |
150 |
Not applicable |
|
M06 |
17.9 |
3.2 - 61.5 |
150 |
Not applicable |
|
M09 |
15.6 |
5.5 - 47.1 |
150 |
Not applicable |
|
M10 |
21.1 |
3.6 - 59.0 |
150 |
Not applicable |
|
M11 |
17.7 |
1.5 - 45.6 |
150 |
Not applicable |
|
M13 |
18.4 |
3.8 - 64.1 |
150 |
Not applicable |
|
M14 |
14.4 |
3.2 - 45.0 |
150 |
Not applicable |
|
M15a |
10.4 |
1.6 - 42.4 |
150 |
Not applicable |
Table 2.4 Summary of 24-hour rolling average RSP Monitoring Results in the Reporting
Period
|
Monitoring Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
M02 |
19.8 |
7.4 - 38.1 |
Not applicable |
100 |
|
M03 |
5.9 |
1.3 - 15.9 |
Not applicable |
100 |
|
M04 |
16.6 |
4.9 - 33.9 |
Not applicable |
100 |
|
M06 |
18.0 |
4.5 - 45.0 |
Not applicable |
100 |
|
M09 |
15.7 |
6.0 - 37.9 |
Not applicable |
100 |
|
M10 |
21.0 |
6.9 - 40.7 |
Not applicable |
100 |
|
M11 |
17.8 |
2.1 - 36.3 |
Not applicable |
100 |
|
M13 |
18.5 |
4.5 - 39.6 |
Not applicable |
100 |
|
M14 |
14.5 |
4.2 - 32.0 |
Not applicable |
100 |
|
M15a |
10.5 |
2.5 - 23.9 |
Not applicable |
100 |
Table 2.5 Summary of 24-hour rolling average FSP
Monitoring Results in the Reporting Period
|
Monitoring Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
M02 |
10.3 |
3.4 - 20.3 |
Not applicable |
50 |
|
M03 |
4.8 |
1.3 - 12.0 |
Not applicable |
50 |
|
M04 |
12.5 |
4.9 - 25.8 |
Not applicable |
50 |
|
M06 |
13.5 |
4.5 - 26.5 |
Not applicable |
50 |
|
M09 |
13.0 |
6.0 - 28.2 |
Not applicable |
50 |
|
M10 |
12.6 |
3.7 - 29.0 |
Not applicable |
50 |
|
M11 |
13.5 |
2.1 - 23.7 |
Not applicable |
50 |
|
M13 |
13.9 |
4.5 - 28.1 |
Not applicable |
50 |
|
M14 |
10.3 |
4.2 - 24.3 |
Not applicable |
50 |
|
M15a |
9.4 |
2.5 - 21.2 |
Not applicable |
50 |
No
exceedance of Action and Limit Levels was recorded for impact air quality
monitoring in the reporting period. No action was thus required to be
undertaken in accordance with the Event and Action Plan presented in Annex C3.
According
to the EM&A Manual of the Project, noise impact monitoring was conducted
once per week during the construction phase of the Project. The Action
and Limit Levels for construction noise of the Project are provided in Table
2.6 below.
Table 2.6 Action and Limit Levels for Construction noise
|
Time Period |
Action
Level |
Limit Level |
|
0700 - 1900 hours on normal weekdays |
When one documented
complaint is received |
75 dB(A)(a),(b) |
Note:
(a)
If works
are to be carried out during restricted hours, the conditions stipulated
in the Construction Noise Permit (CNP) issued by the Noise Control Authority have to be followed.
(b)
70 dB(A) and 65 dB(A)
for schools during normal teaching periods and school examination periods,
respectively.
Noise
monitoring was performed using sound level meter at the designated monitoring
stations provided in Table
2.7 and Figure 2.2. The copies of the calibration
certificates for the equipment shall be referred to corresponding Monthly
EM&A reports.
Table 2.7 Noise Monitoring Details
|
Monitoring Station |
Relevancy to Works Contract |
Location |
Parameter and Frequency |
Type of Measurement |
|
|
|
|||
|
CM1 |
ND/2024/09 |
69
Mai Po San Tsuen |
30-minute
measurement between 0700 and 1900 on normal weekdays (Monday to Saturday) Once
per week for 30 mins during the construction period of the relevant works
contracts of the Project |
Free field |
|
CM3 |
ND/2024/09 |
Scenic
Heights Block B2 |
Free
field |
|
|
CM4 |
ND/2024/09 |
30
Rolling Hills Phase II |
Façade |
|
|
CM9 |
ND/2024/10
& ND/2025/01 |
285B
Wing Ping Tsuen |
Free field |
|
|
CM10 |
ND/2024/10
& ND/2025/01 |
291
Chau Tau Tsuen |
Free
field |
|
|
CM11 |
ND/2024/10
& ND/2025/01 |
218
Chau Tau Tsuen |
Free
field |
|
|
CM12 |
ND/2025/01 |
74
Pun Uk Tsuen |
Free-field |
|
|
CM13 |
ND/2025/01 |
Village
house to the south of lamp post EA2021 |
Free-field |
|
|
CM14 |
ND/2025/01 |
616
Siu Hom Tsuen |
Façade
|
|
|
CM15 |
ND/2025/01 |
310
Wing Ping Tsuen |
Free-field |
|
|
CM16 |
ND/2025/01 |
Village
House near Pak Shek Au |
Free-field |
|
|
CM19 |
ND/2025/01 |
Temporary
Structure near Lok Ma Chau |
Free-field |
During
the reporting period, weather conditions were predominantly sunny and partly
cloudy, providing generally favorable circumstances for conducting impact
monitoring of noise. Results for noise monitoring are summarised
in Table 2.8. Major noise sources during the noise monitoring
included noise from use of Powered Mechanical Equipment (PME) for pile wall
construction, tree felling, demolition and site formation works. The graphical
plots of the trends of monitored parameters (the last month of the previous
quarter and the present quarter) are provided in Annex D1.
Table 2.8 Summary of Construction Noise Monitoring Results in the Reporting Period
|
Monitoring Station |
Average, dB(A), |
Range, dB(A), Leq (30 min) |
Limit Level, dB(A), Leq (30 min) |
|
CM1 (a) |
70.3 |
68.9 - 71.5 |
75 |
|
CM3 (a) |
53.2 |
47.7 - 56.0 |
75 |
|
CM4 |
46.9 |
42.6 - 48.8 |
75 |
|
CM9 (a) |
65.3 |
63.4 - 66.9 |
75 |
|
CM10 (a) |
59.9 |
55.6 - 64.7 |
75 |
|
CM11 (a) |
57.3 |
53.8 - 59.6 |
75 |
|
CM12 (a) |
54.4 |
51.8 - 55.1 |
75 |
|
CM13 (a) |
63.7 |
62.6 - 64.8 |
75 |
|
CM14 |
74.4 |
74.0 - 74.7 |
75 |
|
CM15 (a) |
70.2 |
69.6 - 70.5 |
75 |
|
CM16 (a) |
58.9 |
56.4 - 60.2 |
75 |
|
CM19 (a) |
64.8 |
63.8 - 65.3 |
75 |
Note(s):
(a)
A correction of +3 dB(A) was made to the free field measurements.
No
exceedance of Action and Limit Levels was recorded for construction noise
monitoring in the reporting period. No action was thus required to be
undertaken in accordance with the Event and Action Plan presented in Annex D2.
Water
quality impact monitoring was carried out to ensure that any deterioration of
water quality was detected, and that timely action was taken to rectify the
situation if the deterioration of water quality is caused by the Project.
Impact water quality monitoring was undertaken three days per week during the
reporting period in accordance with the EM&A Manual. Each water
quality impact monitoring was scheduled such that the interval between two
water quality impact monitoring was more than 36 hours to record representative
water quality data throughout the week.
Two (2)
replicate in-situ measurements and samples were collected at each monitored
water depth of each designated monitoring stations.
Dissolved Oxygen (DO), pH value, salinity, temperature and turbidity were
measured in-situ whereas the level of suspended solids (SS) were determined by
SGS Hong Kong Limited which is a HOKLAS accredited laboratory.
The
calculated Action and Limit Levels of water quality monitoring with reference
to the Baseline Water Quality Monitoring Report are provided in Table 2.9.
Table 2.9 Calculated Action and Limit Levels for Water Quality
|
Parameter |
Action Level |
Limit Level |
|
San Tin Eastern Main
Drainage Channel (STEMDC) - Station D1’ |
||
|
DO in mg/L (a) |
1.2 mg/L |
1.2 mg/L |
|
SS in mg/L (b), (c) |
105 mg/L, or 120% of upstream
control station’s (U1a) SS recorded on the same day |
113 mg/L, or 130% of upstream
control station's (U1a) SS recorded on the same day |
|
Turbidity in NTU (b), (c) |
97 NTU, or 120% of upstream
control station’s (U1a) turbidity recorded on the same day |
102 NTU, or 130% of upstream
control station's (U1a) turbidity recorded on the same day |
|
San Tin Western Main
Drainage Channel (STWMDC) - Stations D2a, D2b’, D2c and D2d |
||
|
DO in mg/L (a) |
1.3 mg/L |
1.1 mg/L |
|
SS in mg/L (b),
(c) |
38 mg/L, or 120% of upstream control stations’ (U2a
and U2b) SS recorded on the same day |
46 mg/L, or 130% of upstream
control stations’ (U2a and U2b) SS recorded on the same day |
|
Turbidity in NTU (b),
(c) |
42 NTU, or 120% of upstream
control stations’ (U2a and U2b) turbidity recorded on the same day |
52 NTU, or 130% of upstream
control stations’ (U2a and U2b) turbidity recorded on the same day |
|
Small Watercourses
along Sam Tam Road - Station D7 |
||
|
DO in mg/L (a) |
0.6 mg/L |
0.6 mg/L |
|
SS in mg/L (b) |
5 mg/L |
5 mg/L |
|
Turbidity in NTU (b) |
11 NTU |
12 NTU |
|
Small Watercourses
near Mai Po Village - Station D8 |
||
|
DO in mg/L (a) |
1.4 mg/L |
1.2 mg/L |
|
SS in mg/L (b) |
7 mg/L |
8 mg/L |
|
Turbidity in NTU (b) |
12 NTU |
13 NTU |
Note(s):
(a) For DO, non-compliance of the
water quality limits occurs when monitoring result is lower than the limits.
(b) For SS and turbidity,
non-compliance of the water quality limits occurs when monitoring result is
higher than the limits
(c) For clarity, the exceedance of
Action / Limit Levels for SS and turbidity is considered to occur when both the
baseline percentile criteria (based on 95%-ile / 99%-ile of collected baseline data) and control station
criteria (based on 120% / 130% of control station data collected on the same
day during impact monitoring) are exceeded. In case more than one upstream
control station is involved, the higher number would be considered as the
control criteria. Exceeding either the baseline
percentile criteria or control station criteria alone does not constitute the
exceedance of the corresponding Action / Limit Levels.
The
locations of the impact water quality monitoring station and monitoring
requirements are summarised in Figure 2.3 and Table 2.10.
The copies of the calibration certificates for the equipment shall be referred
to corresponding Monthly EM&A reports.
Subjected
to the safety concern of the access path to station D2d arise
from the private fish pond maintenance work, a joint
site visit with the RSS, IEC and the Safety Officer from ND/2024/09 was
conducted on 6 August 2026. The access to station D2d was confirmed unsafe for routine monitoring and alternative
monitoring location for station D2d was also explored in
the same visit. However, no suitable alternative monitoring location could be
identified due to access constraints and absence of a practical and safety
access route. Therefore, both RSS and IEC had no adverse comment for temporary
suspension of station D2d under safety concern. The proposal for temporary
suspension of station D2d and the supplementary information were submitted to
EPD on 6 August 2026 and 17 August 2026, respectively.
Environmental
site audits, including weekly site inspections of construction works by
representatives from ET, Engineer and Contractor; and joint site inspection
with Independent Environmental Checker (IEC) were conducted during the
reporting period. Based on the audit results and the observation for the
reporting period, environmental pollution control and mitigation measures for
the Project were properly implemented.
Table 2.10
Locations of Impact Water Quality Monitoring Stations and
Monitoring Requirements
|
Monitoring Station |
Relevancy to Works
Contract |
Coordinates |
Description |
Parameters and
Frequency |
|
|
Easting |
Northing |
||||
|
U1a’ (a) |
ND/2024/10 & ND/2025/01 |
826821 |
838974 |
Upstream Station |
In-situ measurements • DO (mg/L) • DO Saturation (%) • Salinity • Temperature (℃) • pH • Turbidity (NTU) Laboratory measurements • SS (mg/L) 3 days per week during the construction
period of the relevant works contracts of the Project. |
|
U1b’ (a) |
ND/2024/10 & ND/2025/01 |
827206 |
840556 |
Upstream Station (Alternative Monitoring
location of U1b) |
|
|
G1a |
ND/2024/10 & ND/2025/01 |
826686 |
839212 |
Gradient Station |
|
|
G1b |
ND/2024/10 & ND/2025/01 |
826472 |
839908 |
Gradient Station |
|
|
G1c |
ND/2024/10 & ND/2025/01 |
826339 |
840303 |
Gradient Station |
|
|
G1d |
ND/2024/10 & ND/2025/01 |
826316 |
840657 |
Gradient Station |
|
|
D1’ (a) |
ND/2024/10 & ND/2025/01 |
825363 |
841422 |
Impact Station |
|
|
D1’T (b) |
ND/2024/10 & ND/2025/01 |
825536 |
840985 |
Impact Station |
|
|
U2a |
ND/2024/09 |
826181 |
838334 |
Upstream Station |
|
|
U2b’ (a) |
ND/2024/09 |
825517 |
838767 |
Upstream Station (Alternative Monitoring
location of U2b) |
|
|
G2 |
ND/2024/09 |
825588 |
839518 |
Gradient Station |
|
|
D2a |
ND/2024/09 |
825200 |
839396 |
Impact Station |
|
|
D2b’ (a) |
ND/2024/09 |
824726 |
840180 |
Impact Station (Alternative Monitoring
location of D2b) |
|
|
D2c |
ND/2024/09 |
824846 |
840373 |
Impact Station |
|
|
D2d (c) |
ND/2024/09 |
825239 |
839846 |
Impact Station |
|
|
D7 |
ND/2024/09 |
824254 |
838831 |
Impact Station |
|
|
D8 |
ND/2024/09 |
824188 |
839310 |
Impact Station |
|
Note(s):
(a) EPD approved the alternative
stations (U1a’, U1b’, D1’ U2b’ and D2b’) on 18 March 2026.
(b) Adjustment of water quality
monitoring stations D1’T has been adopted as a temporary replacement of the
original stations D1’ due to influence of the ongoing river maintenance works
in San Tin Eastern Main Drainage Channel (STEMDC) since 11 February 2026. As no
river maintenance works were observed on 25 March 2026, water quality
monitoring was resumed at station D1’ starting from 25 March 2026.
(c) Impact water quality monitoring
at station D2d was temporary suspended since 7 August 2026 due to safety
concerns of the access path to station D2d arises from the private fish pond maintenance works.
During
the reporting period, weather conditions were predominantly sunny and partly
cloudy, providing generally favorable circumstances for conducting impact
monitoring of water quality.
Due to
safety concern under red rainstorm warning signal hoisted on 31 July 2026, the
scheduled water quality monitoring on 31 July 2026 was cancelled.
Results
for water quality monitoring are summarised in Table
2.11 below. No major source of construction works was observed during the
water quality monitoring in the reporting period.
The
graphical plots of the trends of monitored parameters are in Annex E1.
Table 2.11
SUMMARY OF impact water quality MONITORING RESULTS IN THE REPORTING PERIOD
|
Monitoring Station |
Average |
Range |
||||
|
DO (mg/L) |
Turbidity (NTU) |
SS (mg/L) |
DO (mg/L) |
Turbidity (NTU) |
SS (mg/L) |
|
|
U1a/U1a’ |
7.9 |
53.0 |
23.3 |
5.8 - 9.7 |
4.7 - 789.0 |
2.2 - 270.0 |
|
U1b’ |
7.8 |
49.9 |
46.2 |
6.6 - 9.4 |
1.8 - 1000.0 |
1.0 - 1300.0 |
|
G1a |
6.9 |
40.5 |
24.0 |
5.4 - 9.4 |
1.7 - 684.0 |
1.4 - 485.0 |
|
G1b |
6.5 |
24.4 |
13.7 |
4.4 - 8.5 |
5.1 - 168.0 |
2.4 - 64.0 |
|
G1c |
7.0 |
18.5 |
12.1 |
5.3 - 9.2 |
1.5 - 78.9 |
2.0 - 78.0 |
|
G1d |
7.5 |
29.9 |
20.6 |
5.4 - 14.1 |
4.6 - 242.0 |
1.2 - 260.0 |
|
D1’ /D1’T |
3.3 |
36.8 |
26.7 |
1.4 - 7.4 |
12.3 - 104.0 |
6.0 - 85.5 |
|
U2a |
8.2 |
82.4 |
186.5 |
6.7 - 9.8 |
1.9 - 1000.0 |
3.3 - 6200.0 |
|
U2b’ |
4.9 |
17.8 |
12.5 |
2.5 - 8.1 |
2.6 - 215.5 |
2.1 - 126.0 |
|
G2 |
5.6 |
44.0 |
25.0 |
4.3 - 8.1 |
5.3 - 632.0 |
1.0 - 515.0 |
|
D2a |
3.9 |
10.0 |
6.6 |
2.4 - 7.5 |
3.1 - 57.0 |
2.0 - 37.5 |
|
D2b’ |
3.6 |
21.8 |
14.2 |
1.4 - 6.7 |
9.3 - 71.3 |
4.5 - 46.0 |
|
D2c |
2.6 |
28.7 |
18.2 |
1.4 - 6.4 |
9.3 - 150.5 |
4.5 - 85.5 |
|
D2d |
2.9 |
30.7 |
16.3 |
1.4 - 10.1 |
9.9 - 134.0 |
4.0 - 48.0 |
|
D7 |
1.5 |
5.6 |
2.4 |
0.7 - 4.6 |
1.8 - 10.9 |
1.0 - 5.7 |
|
D8 |
2.9 |
6.2 |
2.6 |
1.7 - 5.2 |
3.5 - 11.1 |
1.1 - 5.7 |
No
Project‑related Action or Limit level exceedance was recorded in the reporting
period. A total of one (1) Action Level and one (1) Limit Level exceedances
were recorded for impact water quality monitoring, investigation was conducted,
and all exceedances were confirmed to be not Project‑related. Therefore, no further
action under the Event and Action Plan was required in accordance with the
Event and Action Plan presented in Annex E2. Details of exceedances recorded in the
reporting period were summarized in Table 2.12 below.
Table 2.12
Summary of EXCEEDANCES RECORDED FOR water QUALITY MONITORING in the
reporting period
|
Month |
Monitoring Station |
Parameter |
Exceedance Level |
No. of exceedance(s) |
Date |
|
June 2026 |
D2c |
SS |
Action Level |
1 |
15 June 2026 |
|
July 2026 |
- |
- |
- |
- |
- |
|
August 2026 |
D7 |
SS |
Limit Level |
1 |
17 August 2026 |
According to Sections 10.13.1.6 –
10.13.1.8 of the EIA Report and Sections 9.3.3.1 – 9.3.3.5 of the EM&A
Manual of the Project, two active egretries,
including Mai Po Lung Village (MPLV) Egretry and Mai
Po Village (MPV) Egretry, were observed within /
adjacent to Project boundary, and buffer area(s) of 100m from the footprint of
both egretries were proposed (Figure 2.4).
Considering the condition, location
and extent of egretry could change periodically with
or without additional human disturbance, pre-construction surveys are necessary
to confirm the latest boundary of the egretries
before commencement of the construction works, and the 100m buffer area should
be verified according to the latest site observation on the egretries.
The pre-construction surveys for egretries were
conducted monthly between March and September 2025 during breeding season. Two
ardeid species, Chinese Pond Heron (Ardeola
bacchus) and Little Egret (Egretta garzetta) were recorded in both egretries.
Peak counts of 76 nests at MPV and 111 nests at MPLV Egretries
were recorded respectively, which are comparable to the findings in the
approved EIA report (84 nests at MPV and 86 nests at MPLV). A total of
eight major flight lines were identified at both egretries,
where the flight path preference was similar to those
recorded in the approved EIA report. The extent of both egretries recorded during the pre-construction egretry survey is provided in Figure 2.4.
During the construction phase, egretry monitoring survey would be
conducted monthly for the MPV Egretry and MPLV Egretry during breeding season (between March and early
September) by qualified ecologist with at least 5
years of relevant working experience. Upon the completion of the enhancement
work at the “Open Space”, egretry monitoring survey
shall be continued monthly for the first three breeding seasons. The monitoring
requirements for the egretry monitoring during the
construction phase and upon the completion of the enhancement work at the “Open
Space” shall be the same.
The implementation of seasonal
control within the 100m buffer area should be confirmed (i.e. construction
activities shall be avoided during the ardeid breeding period) during
monitoring and no direct impact to the egretries
shall be induced by construction works (except for the small area of
encroachment as stated in the EIA Report).
The location of the egretries and the vantage points for the flight path
surveys are presented in Figure
2.5. The egretry monitoring survey was
undertaken on 26 June, 20 July and 10 August 2026 at MPLV and 15 June, 17 July
and 17 August 2026 at MPV during the reporting period, respectively by
qualified ecologist with at least 5 years of relevant working experience. The
status of egretries and ardeid nesting activities
were identified. Active nests, which was determined by the presence of
incubating adults or chicks, was counted directly from vantage points along the
edge of a colony with the use of binoculars or by the naked eye, depending on
the proximity between the surveyor and the colony.
The species, abundance and number of
nests were recorded, whilst the latest boundary of the egretries
was updated during pre-construction survey, where appropriate. These data were
compared with that recorded in the baseline.
The nest status (vacant or
occupied), notable breeding behaviours (e.g.
brooding, feeding of chicks), and presence of adult/juveniles were identified.
In addition, the physical environment, including identification of trees that
are supporting nests within or in close proximity to
the egretries, were recorded as supplementary
information during monitoring.
Flight path surveys for the breeding
ardeids were undertaken at the proposed vantages points for egretries
(i.e. VP1A and VP1B for MPV Egretry, and VP2A and
VP2B for MPLV Egretry respectively) (see Figure 2.6) for two hours in the
early morning, starting about 15-30 minutes before sunrise, which is the peak
period of bird activity.
The flight path and flight height of
ardeid individuals were followed by means of high-power binoculars to identify
their landing locations, wherever possible. Where the ardeids fly out of sight
prior to landing, the location at which they are lost from sight were recorded.
Any changes in site condition or
disturbances detected or observed (e.g. tree-crown pruning works) within or in close proximity to the egretries,
including both construction and non-construction related activities, during
each monitoring were also recorded.
At this stage, a specific triggering
point for investigation of any significant decrease in breeding ardeid numbers
has not yet been established. This is because the commencement programme and extent of construction works
within and adjacent to the concerned egretries and
their associated 100 m buffer areas have yet to be confirmed. Baseline
information on ardeid breeding activity will continue to be collected through
routine egretry monitoring in accordance with the
EM&A Manual. Subject to confirmation of the
construction schedule and availability of contract‑specific information, the need for
and applicability of a triggering point, including its definition and
investigation mechanism, will be reviewed and established if considered
necessary at a later stage to ensure timely identification and assessment of
any construction‑related impacts. The extent of the egretries
recorded in the approved EIA (2012 -2021 and 2022) and during the 2025
pre-construction survey is presented in Figure 2.7 for comparison.
In the MPV egretry,
nesting and breeding activities of ardeids were recorded on Albizia lebbeck and Aleurites moluccana
in the reporting period. Given the egretry is
closely adjacent to the Castle Peak Road (San Tin Section), intensive human
disturbance (e.g. traffic of large container trucks) were observed. No
construction activities were observed at the egretry
or within the 100m buffer area during the reporting period. Details of number
of nests and abundance of adults and juveniles in this reporting period are
presented in Table 2.13 while usage of flight paths and flight heights
are provided in Table 2.14 and Table 2.15, respectively.
The flight paths of the egretry are presented in Figure 2.6.
Table 2.13 number of
nests and ardeids recorded at MPV Egretry
|
Month |
Species |
Number of Nests |
Number of Adults |
Number of
Chicks/Juveniles |
|
June 2026 |
Little Egret |
5 |
6 |
1 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
1 |
1 |
0 |
|
July 2026 |
Little Egret |
0 |
0 |
0 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
0 |
0 |
0 |
|
August 2026 |
Little Egret |
0 |
0 |
0 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
0 |
0 |
0 |
|
June 2026 - August 2026 |
Little Egret |
5 |
6 |
1 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
1 |
1 |
0 |
Table 2.14 usage of
flight paths recorded at MPV egretry
|
Month |
Flight Path |
Number of Usage |
Percentage |
|
June 2026 |
Flight Path 1 |
10 |
11.6% |
|
|
Flight Path 2 |
0 |
0.0% |
|
|
Flight Path 3 |
38 |
44.2% |
|
|
Flight Path 4 |
27 |
31.4% |
|
|
Flight Path 5 |
4 |
4.7% |
|
|
Flight Path 5a |
4 |
4.7% |
|
|
Flight Path 6 |
0 |
0.0% |
|
|
Flight Path 7 |
3 |
3.5% |
|
|
Total |
86 |
100.0% |
|
July 2026 |
Flight Path 1 |
0 |
0.0% |
|
|
Flight Path 2 |
0 |
0.0% |
|
|
Flight Path 3 |
0 |
0.0% |
|
|
Flight Path 4 |
0 |
0.0% |
|
|
Flight Path 5 |
0 |
0.0% |
|
|
Flight Path 5a |
0 |
0.0% |
|
|
Flight Path 6 |
0 |
0.0% |
|
|
Flight Path 7 |
0 |
0.0% |
|
|
Total |
0 |
0.0% |
|
August 2026 |
Flight Path 1 |
0 |
0.0% |
|
|
Flight Path 2 |
0 |
0.0% |
|
|
Flight Path 3 |
0 |
0.0% |
|
|
Flight Path 4 |
0 |
0.0% |
|
|
Flight Path 5 |
0 |
0.0% |
|
|
Flight Path 5a |
0 |
0.0% |
|
|
Flight Path 6 |
0 |
0.0% |
|
|
Flight Path 7 |
0 |
0.0% |
|
|
Total |
0 |
0.0% |
|
June 2026 - August 2026 |
Flight Path 1 |
10 |
11.6% |
|
Flight Path 2 |
0 |
0.0% |
|
|
Flight Path 3 |
38 |
44.2% |
|
|
Flight Path 4 |
27 |
31.4% |
|
|
Flight Path 5 |
4 |
4.7% |
|
|
Flight Path 5a |
4 |
4.7% |
|
|
Flight Path 6 |
0 |
0.0% |
|
|
Flight Path 7 |
3 |
3.5% |
|
|
Total |
86 |
100.0% |
Table 2.15 usage of
flight paths and flight heights recorded at mpv egretry
|
Month |
Flight height(m) |
Flight Path 1 |
Flight Path 2 |
Flight Path 3 |
Flight Path 4 |
Flight Path 5 |
Flight Path 5a |
Flight Path 6 |
Flight Path 7 |
|
June 2026 |
0-10 |
3 |
0 |
38 |
26 |
3 |
4 |
0 |
3 |
|
|
11-20 |
7 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
10 |
0 |
38 |
27 |
4 |
4 |
0 |
3 |
|
July 2026 |
0-10 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
11-20 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
August 2026 |
0-10 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
11-20 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
|
Total (June 2026 – August 2026) |
10 |
0 |
38 |
27 |
4 |
4 |
0 |
3 |
In the MPLV egretry,
nesting and breeding activities of ardeids were recorded on Ficus virens,
Ficus benjamina, Ficus Microcarpa, Melaleuca cajuputi subsp. cumingiana, and
Peltophorum pterocarpum
in the reporting period. Given the egretry is
closely adjacent to the Castle Peak Road (San Tin Section), intensive human
disturbance (e.g. traffic of large container trucks) were observed. No
construction activities were observed at the egretry
or within the 100m buffer area during the reporting period. Details of number
of nests and abundance of adults and juveniles in this reporting period are
presented in Table 2.16 while usage of flight paths and flight heights
are provided in Table 2.17 and Table 2.18, respectively.
A new flight path towards southeast
of egretry was observed during the reporting period,
the updated flight paths of the egretry are presented
in Figure 2.6.
Table 2.16 number of
nests and ardeids recorded at MPLV Egretry
|
Month |
Species |
Number of Nests |
Number of Adults |
Number of
Chicks/Juveniles |
|
June 2026 |
Little Egret |
6 |
12 |
5 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
36 |
42 |
13 |
|
July 2026 |
Little Egret |
12 |
7 |
12 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
11 |
8 |
12 |
|
August 2026 |
Little Egret |
4 |
6 |
4 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
18 |
12 |
17 |
|
June 2026 – August 2026 |
Little Egret |
22 |
25 |
21 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
65 |
62 |
42 |
Table 2.17 usage of
flight paths recorded at MPLV egretry
|
Month |
Flight Path |
Number of Usage |
Percentage |
|
June 2026 |
Flight Path 1 |
23 |
13.6% |
|
|
Flight Path 2 |
37 |
21.9% |
|
|
Flight Path 3 |
4 |
2.4% |
|
|
Flight Path 4 |
7 |
4.1% |
|
|
Flight Path 5 |
65 |
38.5% |
|
|
Flight Path 6 |
26 |
15.4% |
|
|
Flight Path 7 |
0 |
0.0% |
|
|
Flight Path 8 |
6 |
3.6% |
|
|
Flight Path 9 |
1 |
0.6% |
|
|
Total |
169 |
100.0% |
|
July 2026 |
Flight Path 1 |
9 |
12.2% |
|
|
Flight Path 2 |
11 |
14.9% |
|
|
Flight Path 3 |
7 |
9.5% |
|
|
Flight Path 4 |
13 |
17.6% |
|
|
Flight Path 5 |
14 |
18.9% |
|
|
Flight Path 6 |
13 |
17.6% |
|
|
Flight Path 7 |
3 |
4.1% |
|
|
Flight Path 8 |
1 |
1.4% |
|
|
Flight Path 9 |
3 |
4.1% |
|
|
Total |
74 |
100.0% |
|
August 2026 |
Flight Path 1 |
4 |
8.50% |
|
|
Flight Path 2 |
10 |
21.30% |
|
|
Flight Path 3 |
10 |
21.30% |
|
|
Flight Path 4 |
10 |
21.30% |
|
|
Flight Path 5 |
9 |
19.10% |
|
|
Flight Path 6 |
0 |
0.00% |
|
|
Flight Path 7 |
1 |
2.10% |
|
|
Flight Path 8 |
3 |
6.40% |
|
|
Flight Path 9 |
0 |
0.00% |
|
|
Total |
47 |
100.0% |
|
June 2026 – August 2026 |
Flight Path 1 |
36 |
12.4% |
|
Flight Path 2 |
58 |
20.0% |
|
|
Flight Path 3 |
21 |
7.2% |
|
|
Flight Path 4 |
30 |
10.3% |
|
|
Flight Path 5 |
88 |
30.3% |
|
|
Flight Path 6 |
39 |
13.4% |
|
|
Flight Path 7 |
4 |
1.4% |
|
|
Flight Path 8 |
10 |
3.4% |
|
|
Flight Path 9 |
4 |
1.4% |
|
|
Total |
290 |
100.0% |
Table 2.18 usage of
flight paths and flight heights recorded at mpLv egretry
|
Month |
Flight height(m) |
Flight Path 1 |
Flight Path 2 |
Flight Path 3 |
Flight Path 4 |
Flight Path 5 |
Flight Path 6 |
Flight Path 7 |
Flight Path 8 |
Flight Path 9 |
|
June 2026 |
0-10 |
22 |
32 |
1 |
5 |
63 |
17 |
0 |
1 |
0 |
|
|
11-20 |
1 |
5 |
3 |
2 |
2 |
9 |
0 |
5 |
1 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
23 |
37 |
4 |
7 |
65 |
26 |
0 |
6 |
1 |
|
July 2026 |
0-10 |
9 |
9 |
5 |
9 |
12 |
12 |
1 |
0 |
3 |
|
|
11-20 |
0 |
2 |
2 |
4 |
2 |
1 |
2 |
1 |
0 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
9 |
11 |
7 |
13 |
14 |
13 |
3 |
1 |
3 |
|
August 2026 |
0-10 |
2 |
9 |
10 |
9 |
9 |
0 |
1 |
3 |
0 |
|
|
11-20 |
2 |
1 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
4 |
10 |
10 |
10 |
9 |
0 |
1 |
3 |
0 |
|
June 2026 – August 2026 |
0-10 |
33 |
50 |
16 |
23 |
84 |
29 |
2 |
4 |
3 |
|
11-20 |
3 |
8 |
5 |
7 |
4 |
10 |
2 |
6 |
1 |
|
|
21-30 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
36 |
58 |
21 |
30 |
88 |
39 |
4 |
10 |
4 |
According to Section 10.13.1.13 of
the EIA Report and Section 9.3.5 of the EM&A Manual of the Project, bird
usage of the flight corridor should be monitored to ensure no adverse impacts
arise from construction activities. Construction phase monitoring should be
conducted, focusing on the composition of bird species and their abundance
using the flight corridor, observed from suitable vantage point(s) such as the
Lok Ma Chau (LMC) Lookout.
The 12-month pre-construction
baseline surveys were conducted monthly from December 2024 to November 2025,
using LMC Lookout as the designated vantage point. To ensure comparable
results, the construction phase monitoring will also use Lok Ma Chau Lookout as
the vantage point (Figure 2.8).
The location of the flight corridor
and the vantage point for the monitoring surveys at LMC Lookout are presented
in Figure 2.8. The flight
corridor monitoring was undertaken on 24 August 2026.
The ecological surveyor was
stationed at a fixed point (see Figure
2.8) for two hours in the early morning, starting about 30 minutes
before sunrise, which is the peak period of bird activity. During the survey,
the surveyor will scan the 300m corridor area to spot any birds flying across
the corridor. Binoculars and/or telescope will be used
to aid in the identification of bird species and numbers.
For each observation of birds in
flight, the number, species, time, flight direction and height above ground
will be recorded. Height above the ground will be estimated in relation to the
level of LMC Loop and adjacent fishpond area, and/or the location of the
surveyor. Given the difficulty of accurately measuring height above ground from
a distance, four height classes will be used: 0-10m, 11-20m, 21-30m and 30m or
above. Existing infrastructures, such as buildings, lampposts and the hillock
near Ha Wan Tsuen Road, will be used as reference points to help ensure higher
accuracy in height measurement during the survey.
Additionally, any special
observations that could aid in impact identification, such as high aggregation
of birds in particular locations, will also be recorded.
A total of 28 individuals of five
bird species were recorded traversing the flight corridor during the survey.
The recorded species included Little Egret (Egretta garzetta),
Chinese Pond Heron (Ardeola bacchus), Grey Heron (Ardea cinerea), Great
Egret (Ardea alba), and Black Kite (Milvus migrans). No noisy
construction activities were observed within the flight corridor during the
reporting period.
Bird movements were recorded along
Flight Path 1 and Flight Path 2, with the majority of
movements concentrated along Flight Path 1. Details of the abundance of birds
recorded are presented in Table 2.19, while usage of flight paths
(Number of Individuals) and flight heights are provided in Table 2.20 and
Table 2.21, respectively. Flight Paths Observed at the 300m
Flight Corridor are presented in Figure
2.9.
Table 2.19 number of
Birds recorded at the Flight Corridor
|
Month |
Species |
Number of Individuals |
|
August 2026 |
Little Egret (Egretta garzetta) |
19 |
|
|
Black Kite (Milvus migrans) |
5 |
|
|
Chinese Pond Heron (Ardeola bacchus) |
2 |
|
|
Grey Heron (Ardea cinerea) |
1 |
|
|
Great Egret (Ardea alba) |
1 |
|
|
Total |
28 |
Table 2.20 usage of
flight paths recorded at the Flight Corridor
|
Month |
Flight Path |
Flight Path Usage
(Number of Individuals) |
Percentage |
|
August 2026 |
Flight Path 1 |
26 |
92.9% |
|
|
Flight Path 2 |
2 |
7.1% |
|
|
Total |
28 |
100.0% |
Table 2.21 usage of
flight paths and flight heights recorded at the Flight Corridor
|
Month |
Flight height (m) |
Flight Path 1 (Number of
Individuals) |
Flight Path 2 (Number of
Individuals) |
|
August 2026 |
0-10 |
1 |
0 |
|
|
11-20 |
16 |
0 |
|
|
21-30 |
9 |
0 |
|
|
>30 |
0 |
2 |
|
|
Total |
26 |
2 |
Site
inspections were carried out on a weekly basis with the Contractor and ER to
monitor the implementation of proper environmental pollution control and
mitigation measures for air quality, noise, water quality, waste management,
landscape and visual impacts under the Project. In the reporting period,
fourteen (14) site inspections were carried out for ND/2024/09, thirteen (13)
site inspections were carried out for ND/2024/10 and four (4) site inspections
were carried out for ND/2025/01. Details of comments and recommendations were
provided during site inspections shall be referred to corresponding EM&A
monthly reports. Key observations during the site
inspections are summarized in Table 2.22.
No site
inspection was conducted by EPD in the reporting period.
Table 2.22
Key Observations Identified during the site inspection in this
Reporting Period
|
Inspection Date |
Environmental Observations |
Follow-up Status |
|
ND/2024/09 |
||
|
2
June 2026 |
·
No particular
observation. |
· N/A |
|
8
June 2026 |
·
No particular
observation. The contractor was reminded to remove general refuse
regularly. |
· N/A |
|
17
June 2026 |
·
No particular
observation. |
· N/A |
|
22
June 2026 |
• No particular
observation. |
· N/A |
|
29
June 2026 |
·
No particular
observation. |
· N/A |
|
6
July 2026 |
·
No particular
observation. |
· N/A |
|
13
July 2026 |
·
No particular
observation. The contractor was reminded to remove construction waste
regularly. |
· N/A |
|
22
July 2026 |
·
The contractor was
reminded to replace Non-road mobile machinery (NRMM)
label of excavator. |
· The NRMM label on the excavator
has been replaced. |
|
27
July 2026 |
·
The contractor was
reminded to remove debris regularly to avoid blockage of drainage. |
· The debris in the drainage system
has been cleared regularly to prevent blockages. |
|
3
August 2026 |
·
No particular
observation. |
· N/A |
|
10
August 2026 |
·
The contractor was
reminded to provide watering regularly. |
· Watering have been provided
regularly. |
|
17
August 2026 |
• The Contractor was reminded to
provide NRMM label for breaker. Reminder: ·
The contractor was
reminded to provide regular watering for dusty works. |
· The NRMM label has been provided
for breakers. |
|
26
August 2026 |
·
The contractor was
reminded to provide drip tray/ tarpaulin for breaker head. |
· Breaker head has been removed off
site. |
|
31
August 2026 |
• The contractor was reminded to
provide drip tray for chemical container Reminder: ·
The contractor was
reminded to provide sandbags for gullies. |
· A drip tray has been provided for
chemical container. |
|
ND/2024/10 |
||
|
2 June 2026 |
• No particular
observation. |
• N/A |
|
11 June 2026 |
• No particular
observation. |
• N/A |
|
17 June 2026 |
• Accumulated waste shall be cleared
properly on site. |
• The waste was removed from the
site. |
|
23 June 2026 |
• No particular
observation. |
• N/A |
|
30 June 2026 |
• No particular
observation. • The contractor was reminded to
collect and treat the stagnant water properly prior discharge. |
• N/A |
|
7 July 2026 |
• No particular
observation. • The contractor was reminded to
review the site drainage bypass to prevent the water from upstream mixed with
the wastewater generated on site. No untreated wastewater discharged directly
offsite was observed. |
• N/A |
|
16 July 2026 |
No particular observation. |
• N/A |
|
23 July 2026 |
• NRMM label for the generator shall
be replaced with a correct colour code one. • Idle stockpiles shall be covered
properly. |
·
NRMM label was
replaced. ·
Stockpiles were
covered properly. |
|
28 July 2026 |
• Muddy water overflow from the site
was observed. The contractor shall provide suitable measures to collect the
muddy water; and confine in the site. Also, provide adequate blockages to
avoid overflow. |
• Muddy water was collected and
treated immediately. Sandbag was stacked at entry to
prevent muddy water overflow. No muddy water
overflow after the measures implemented. |
|
4 August 2026 |
• No particular
observation. • The contractor was reminded to
clear the accumulated mud on the access road regularly to prevent muddy water
generated under heavy rain. |
• N/A |
|
11 August 2026 |
• No particular
observation. • The contractor was reminded to
cover the stockpiles properly when idle. |
·
N/A |
|
20 August 2026 |
• CNP shall be displayed at the
appropriate point at the site boundary. |
·
CNPs were displayed
at the site entries. |
|
27 August 2026 |
• No particular
observation. • The contractor was reminded to
collect and treat the stagnant water properly on site after heavy rain. |
·
N/A |
|
ND/2025/01 |
||
|
6 August 2026 |
• The contractor was reminded to
place NRMM label on excavator. |
·
The excavator has
left the site. |
|
13 August 2026 |
• The Contractor was reminded to
provide hoarding along site boundary. Reminder: • The contractor was reminded to
provide regular watering along haul road. |
·
The item is pending
in the reporting period. |
|
20 August 2026 |
• The Contractor was reminded to
provide drip tray for chemical container. |
·
The works area has
been cleared. |
|
26 August 2026 |
• The contractor was reminded to
keep site tidiness properly. Reminder: • The contractor was reminded to
provide mitigation measures properly for the drainage channel. |
·
Housekeeping has been
carried out immediately. |
Waste
generated from the Works Contracts of the Project include
inert construction and demolition (C&D) materials
and non-inert C&D wastes. Sorting of C&D
materials was carried out on site. Sufficient numbers of
receptacles were available for general refuse collection and sorting.
Reference
has been made to the waste flow tables prepared by the Contractors. The
quantities of different types of waste are summarised
in Table 2.23. Details of cumulative waste management data are
presented as a waste flow table in Annex F.
Table 2.23
Comparison of Estimated Amount of Waste Generated for Construction of
the Project and Actual Amount Generated during the Reporting Period
|
Type of Waste |
Estimated Amount for the Project (m3) |
Actual Amount during
Reporting Period (m3) |
|
Inert
C&D materials (or public fills) to be disposed of |
5,522,800 |
13.58 |
|
Non-inert C&D materials (or
C&D waste) to be disposed of |
7,800 |
4,123.48 |
Note:
(a)
Assumed Inert C&D
waste density = 1,300kg/m3
(b)
Assumed Non-inert
C&D waste density = 800 kg/m3
A summary
of the Environmental Mitigation Implementation Schedule is presented in Annex G1 and the
Environmental Mitigation implementation status in this reporting period is
presented in Annex G2.
The necessary mitigation measures were implemented properly for the Project.
There was
no notification of summons or prosecution recorded in the reporting period.
One (1)
complaint related to waste management was received under Contract No.
ND/2024/09 on 25 June 2026. An investigation was conducted by the ET to
determine the validity of the complaint and assess whether the source of the
problem was due to works activities. The complaint could not be
substantiated, and no evidence was identified to indicate that the source of
the problem was due to works activities. Therefore, no additional mitigation
measures were required to be implemented by the Contractor. The case was
subsequently closed. Statistics on environmental complaint, notification of
summons and successful prosecution for this project summarized in Table 2.24.
Table 2.24
Statistics on environmental complaint, notification of summons or
Successful prosecution
|
Reporting Period |
Complaints |
Notification of
summons |
Successful prosecution |
|
This reporting period (June 2026 – August 2026) |
1 |
0 |
0 |
|
From commencement date of construction to
this reporting period |
1 |
0 |
0 |
This
EM&A Report presents the findings of the EM&A activities undertaken for
the Project during the period of June 2026 – August 2026 in accordance with the
EM&A Manual and the requirements of the EPs. The environmental
monitoring (impact and baseline), site inspection, environmental complaint
handling and EM&A reporting in works areas under Contract Nos. ND/2024/09,
ND/2024/10 and ND/2025/01 were covered and carried out.
Air
quality (1-hour RSP, 24-hour rolling average RSP and 24-hour rolling average
FSP), noise, water quality and ecological monitoring were carried out in the
reporting period.
The
monitoring results for impact air quality monitoring complied with the Action/
Limit levels in the reporting period.
The
monitoring results for impact noise monitoring complied with the Action/ Limit
levels in the reporting period.
No
Project-related Action or Limit level exceedance was recorded in the reporting
period. A total of one (1) Action Level and one (1) Limit Level exceedances
were recorded for impact water quality monitoring, investigation was conducted,
and all exceedances were confirmed to be not Project‑related. Therefore, no further
action under the Event and Action Plan was required.
Environmental
site inspections were carried out during the reporting period. Recommendations
on remedial actions were given to the Contractors for
the deficiencies identified during the site inspections.
Based on
observation from the impact monitoring results and site inspections recorded,
it was considered that mitigation measures were effective and efficient in
controlling the potential impacts due to construction of the project during the
reporting period.
There was
no notification of summons or prosecution recorded in the reporting period.
One (1)
complaint related to waste management was received under Contract No.
ND/2024/09 on 25 June 2026. An investigation was conducted by the ET to
determine the validity of the complaint and assess whether the source of the
problem was due to works activities. The complaint could not be
substantiated, and no evidence was identified to indicate that the source of
the problem was due to works activities. Therefore, no additional mitigation
measures were required to be implemented by the Contractor. The case was subsequently
closed.
The ET
will keep track on the construction works to confirm
compliance with environmental requirements and the proper implementation of all
necessary mitigation measures.
|