Contents
2.1.1
Monitoring Requirements and Equipment
2.1.2
Results and Observations
2.2.1
Monitoring Requirements and Equipment
2.2.2
Monitoring Schedule for the Reporting Month
2.2.3
Results and Observations
2.3.1
Monitoring Requirements and Equipment
2.3.2
Monitoring Schedule for the Reporting Month
2.3.3
Results and Observations
2.4.1
Egretry Monitoring Requirements
2.4.2
Egretry Monitoring Methodology
2.4.3
Results and Observations of Egretry Monitoring
2.8 Summary oF Complaints,
Notification OF Summons AND Successful Prosecutions
Annex
B Construction
Programme
Annex
C Environmental
Licenses and Permits of the Project
Annex
D1 CALIBRATION
CERTIFICATES (ONSITE SENSORS)
Annex
D2 CALIBRATION CERTIFICATES
(TRANSFER STANDARDS)
Annex
D3 AIR QUALITY MONITORING
RESULTS
Annex
D5 EVENT AND ACTION PLAN
FOR AIR QUALITY MONITORING
Annex
E1 Calibration
Certificates (Sound Level Meters and Acoustic Calibrators)
Annex
E2 Noise Monitoring
Schedule during Reporting Period
Annex
E3 Noise Monitoring
Results
Annex
E4 Event and Action
Plan for Noise Monitoring
Annex
F1 Calibration
Certificates of Water Quality Monitoring Equipment
Annex
F2 Water Quality
Monitoring Schedule during Reporting Period
Annex
F3 Water Quality
Monitoring Results
Annex
F4 Event and Action
Plan for Water Quality Monitoring
Annex
G Ecological
Monitoring Schedule during Reporting Period
Annex
I Environmental
Mitigation Implementation Schedule
Annex
J Tentative
Schedules of Environmental Monitoring for Future 3 Months
Annex K Status of EP Submissions
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 impact 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 impact Water Quality Monitoring Equipment
Table 2.12 number of nests and ardeids recorded at MPLV
Egretry
Table 2.13 usage of flight paths recorded at MPLV egretry
Table 2.14 usage of flight paths and flight heights
recorded at mpLv egretry
Table 2.15 Key Observations Identified during the site
inspection in this Reporting Month
Table 2.16 Quantities of Waste Generated in Reporting
Period
Table 2.17 Statistics on environmental complaint,
notification of summons or Successful prosecution
Table 3.1 Major Construction Works in the Next
Three Months
Table 3.2 summary table for the air quality
monitoring stations under ND/2025/01
Table 3.3 summary table for the Noise monitoring
stations under ND/2025/01
Table 3.4 summary table for the Water Quality
monitoring stations under ND/2025/01
List
of Figures
FIGURE
2.7 Location of Egretry and 100m Buffer Area
(recorded in EIA and in 2025)
This is
the Monthly Environmental Monitoring and Audit (EM&A) Report presenting the
EM&A works during the period of July 2026 for the San Tin Technopole Phase
1 Development (the Project) in accordance with the EM&A Manual. Two
(2) works contracts, Package 1 Contract 1 (ND/2024/09) and Package 2 Contract 1
(ND/2024/10), are active in this reporting period.
·
The
construction of ND/2024/09 commenced on 29 September 2025; and
·
The
construction of ND/2024/10 commenced on 18 September 2025;
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
5 sessions
·
ND/2024/10
5 sessions
Water
Quality Monitoring
·
ND/2024/09
13 sessions
·
ND/2024/10
13 sessions
Ecological Monitoring
1 session for Pre-construction Site Check and Nest Control, 1 session for Mai
Po Lung Village (MPLV) Egretry and 1 session for Mai
Po Village (MPV) Egretry
Environmental
Site Inspection
·
ND/2024/09
4 sessions
·
ND/2024/10
4 sessions
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.
Breaches
of Action and Limit Levels for Air Quality
No exceedance of Action and Limit Levels was recorded for impact air
quality monitoring in the reporting period
Breaches of
Action and Limit Levels for Noise
No
exceedance of Action and Limit Levels was recorded for impact noise monitoring
in the reporting period.
Breaches
of Action and Limit Levels for Water Quality
No
exceedance of Action and Limit Levels was recorded for impact water quality
monitoring in the reporting period.
Environmental Complaints, Non-compliance & Summons
There was
no environmental complaint, notification of summons or prosecution recorded in
the reporting period.
Reporting
Change
There was no reporting change in the reporting period.
Key
Issues For The Next Three Months
The construction activities of ND/2025/01 will be commenced on 1 August
2026.
Potential
environmental impacts arising from the upcoming construction activities in the
next three months are mainly associated with dust emission, noise from plant
operation, handling and storage of C&D materials generated from
construction activities, efficiency of wastewater and drainage management and
tree protection. The ET will keep track on the construction works to
confirm compliance with environmental requirements and the proper
implementation of all necessary mitigation measures.
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. Two (2) works contracts, ND/2024/09 and ND/2024/10,
are active in this reporting period. The construction of ND/2024/09
commenced on 29 September 2025 and the construction of ND/2024/10 commenced on
18 September 2025. 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
|
Designated Project |
Work Contracts |
||
|
ND/2024/09 |
ND/2024/10 |
||
|
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 |
|
|
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 Monthly EM&A Report
for the Project which summarises the key findings of
the EM&A programme during the reporting period of
July 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 |
|
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) |
Project Director |
Kit Chan |
9681 8144 |
|
Site Agent |
Wilson Chan |
9656 8865 |
|
|
Sub Agent |
Ken Lam |
9494 3132 |
|
|
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 |
|
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
|
Construction
Works Undertaken |
Key
Issues |
Key
Mitigation Measures |
|
Contract
No. ND/2024/09 |
||
|
• 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 |
• Dust emission • Handling and storage of construction and
demolition (C&D) materials • Noise from use of Powered Mechanical
Equipment (PME) • Emission of dark smoke from PMEs • Proper discharge of wastewater • Prevention and proper discharge of surface
runoff • Tree protection |
• Good site practices • Regular water spraying on stockpiles • Provide tarpaulin sheets coverage on
stockpiles and reuse of C&D materials as far as practicable • Use of QPME and noise barrier/acoustic
mat/enclosure • Regular maintenance of PMEs • Implementation of wastewater and drainage management • Retain and protect all existing trees and
vegetation within the study area which are not directly affected by the works |
|
Contract
No. ND/2024/10 |
||
|
• Ground Investigation Work • Construction for Box Culvert • Construction of Sewerage Pipe • Construction of Containment Wall • Site Formation Works |
• Dust emission • Handling and storage of C&D materials • Noise from use of PME • Emission of dark smoke from PMEs • Proper discharge of wastewater • Prevention and proper discharge of surface
runoff • Tree protection |
• Good site practices • Regular water spraying on stockpiles • Provide tarpaulin sheets coverage on
stockpiles and reuse of C&D materials as far as practicable • Use of Quality Powered Mechanical Equipment
(QPME) and noise barrier/acoustic mat/enclosure • Regular maintenance of PMEs • Implementation of wastewater and drainage management • Retain and protect all existing trees and
vegetation within the study area which are not directly affected by the works |
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, monitoring
conducted continuously. |
|
Noise |
|
|
Baseline Monitoring |
The results of baseline noise monitoring for Contract Nos. ND/2024/09,
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. |
|
Impact Monitoring |
On-going for Contract Nos. ND/2024/09 and ND/2024/10, monitoring
conducted once per week. |
|
Water Quality |
|
|
Baseline Monitoring |
The results of baseline water quality monitoring for Contract Nos.
ND/2024/09, 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. |
|
Impact Monitoring |
On-going for Contract Nos. ND/2024/09 and ND/2024/10, 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. |
|
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 for the survey will be prepared. |
|
Egretry Monitoring |
On-going between March and early September. |
|
Flight Corridor Monitoring |
To be conducted when construction activities occur within this flight
corridor. |
|
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. A stand alone report will be 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 |
Taking into
account the construction works, impact monitoring of air quality, noise, water
quality, ecological and waste management were carried out in the reporting
period. The monitoring schedule of noise, water quality and ecology are
provided in Annex E2, Annex F2 and Annex G, respectively.
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. The
relevant EP submissions are listed in Annex K.
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 Annex C.
No non-compliance with environmental statutory requirements was recorded.
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.
Copies of the calibration certificates for the onsite air sensors at the
monitoring stations and the transfer standards are presented in Annex D1 and Annex D2 respectively.
Table 2.2
Air Quality Monitoring Details
|
Monitoring Station |
Relevancy to Works Contract |
Location |
Equipment |
|
M03 |
ND/2024/10 |
Pun Uk Tsuen |
MAS-Dust
(S/N:
dev9204Z250700007) |
|
M04 |
ND/2024/10 |
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 |
Wing
Ping Tsuen |
MAS-Dust
(S/N:
dev9204Z250700005) |
|
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.
The
monitoring data and the graphical presentation for 1-hour RSP, 24-hour rolling
average RSP and 24-hour rolling average FSP concentrations are summarised 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 monitoring data and the graphical presentation
are provided in Annex D3.
Wind data during the reporting period extracted from the Hong Kong Observatory
(HKO)’s weather station at Wetland Park via DATA.GOV.HK are presented in Annex D4.
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) |
|
M03 |
5.9 |
1.1 - 24.6 |
150 |
Not applicable |
|
M04 |
18.9 |
7.2 - 44.2 |
150 |
Not applicable |
|
M06 |
21.8 |
7.5 - 61.5 |
150 |
Not applicable |
|
M09 |
17.7 |
8.4 - 47.1 |
150 |
Not applicable |
|
M11 |
24.7 |
4.8 - 45.6 |
150 |
Not applicable |
|
M13 |
21.1 |
7.3 - 64.1 |
150 |
Not applicable |
|
M14 |
16.3 |
5.1 - 45.0 |
150 |
Not applicable |
|
M15a |
11.0 |
3.1 - 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) |
|
M03 |
6.0 |
2.2 - 15.9 |
Not applicable |
100 |
|
M04 |
18.9 |
10.0 - 33.9 |
Not applicable |
100 |
|
M06 |
21.9 |
10.4 - 45.0 |
Not applicable |
100 |
|
M09 |
17.7 |
9.7 - 37.9 |
Not applicable |
100 |
|
M11 |
24.9 |
7.0 - 36.3 |
Not applicable |
100 |
|
M13 |
21.0 |
10.8 - 39.6 |
Not applicable |
100 |
|
M14 |
16.2 |
8.6 - 32.0 |
Not applicable |
100 |
|
M15a |
11.0 |
4.6 - 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) |
|
M03 |
4.6 |
1.8 - 11.7 |
Not applicable |
50 |
|
M04 |
12.4 |
6.6 - 23.7 |
Not applicable |
50 |
|
M06 |
13.6 |
7.4 - 23.2 |
Not applicable |
50 |
|
M09 |
13.0 |
7.4 - 25.5 |
Not applicable |
50 |
|
M11 |
18.2 |
4.0 - 23.7 |
Not applicable |
50 |
|
M13 |
12.6 |
7.0 - 20.4 |
Not applicable |
50 |
|
M14 |
9.5 |
4.9 - 19.1 |
Not applicable |
50 |
|
M15a |
9.3 |
3.9 - 21.2 |
Not applicable |
50 |
No
exceedance of Action and Limit Levels was recorded in the reporting period. No
action was thus required in accordance with the Event and Action Plan presented
in Annex D5.
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.
According
to the EM&A Manual of the Project, baseline noise monitoring shall be
carried out daily at all identified monitoring stations for at least two weeks
prior to the commencement of construction works.
Noise
monitoring was performed using sound level meter at the designated monitoring
stations provided in Table
2.7 and Figure 2.2, in accordance with the requirements stipulated
in the EM&A Manual. Acoustic calibrator was deployed to check the
sound level meters at a known sound pressure level. Details of the
deployed equipment are provided in Table 2.7.
Copies of the calibration certificates for the equipment are presented in Annex E1.
Table 2.7
impact Noise Monitoring Details
|
Monitoring Station |
Relevancy to Works Contract |
Location |
Parameter and Frequency |
Monitoring Dates |
Equipment |
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 |
3,
7, 16, 23 and 30 July 2026 |
Sound Level Meter: Rion NL-52 (S/N: 00542913 & 01010406) Acoustic Calibrator: Larson Davis CAL200
(S/N: 11333) |
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 |
285B
Wing Ping Tsuen |
Free field |
|||
|
CM10 |
ND/2024/10 |
291
Chau Tau Tsuen |
Free
field |
|||
|
CM11 |
ND/2024/10 |
218
Chau Tau Tsuen |
Free
field |
The
schedule for impact noise monitoring during the reporting period is provided in
Annex E2.
Results
for noise impact monitoring are summarised in
Table 2.8. Major noise sources during the noise monitoring included
noise from use of Powered Mechanical Equipment (PME), tree felling, demolition
and site formation works. The monitoring data and the graphical presentation
are provided in Annex E3.
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) |
70.8 |
69.9 - 71.5 |
75 |
|
CM3 (a) |
53.5 |
47.7 - 56.0 |
75 |
|
CM4 |
47.6 |
42.8 - 48.8 |
75 |
|
CM9 (a) |
64.4 |
63.4 - 65.3 |
75 |
|
CM10 (a) |
59.0 |
55.6 - 62.2 |
75 |
|
CM11 (a) |
57.2 |
55.7 - 58.4 |
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 E4.
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 monitoring stations under works contracts ND/2024/09 and ND/2024/10 are shown in Figure 2.3 and Table 2.10.
Table 2.10
Locations of Impact Water Quality Monitoring Stations and
Monitoring Requirements
|
Monitoring Station |
Relevancy to Works
Contract |
Coordinates |
Description |
Parameters and
Frequency |
Monitoring Dates |
|
|
Easting |
Northing |
|||||
|
U1a’ (a) |
ND/2024/10 |
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. |
2, 4, 6, 8, 10, 13, 15, 17, 20, 22, 24, 27
and 29 July 2026(c) |
|
U1b’ (a) |
ND/2024/10 |
827146 |
840550 |
Upstream Station (Alternative Monitoring
location of U1b) |
||
|
G1a |
ND/2024/10 |
826686 |
839212 |
Gradient Station |
||
|
G1b |
ND/2024/10 |
826472 |
839908 |
Gradient Station |
||
|
G1c |
ND/2024/10 |
826339 |
840303 |
Gradient Station |
||
|
G1d |
ND/2024/10 |
826316 |
840657 |
Gradient Station |
||
|
D1’ (a) |
ND/2024/10 |
825363 |
841421 |
Impact Station |
||
|
D1’T (b) |
ND/2024/10 |
825536 |
840985 |
Impact Station |
|
|
|
U2a |
ND/2024/09 |
826181 |
838334 |
Upstream Station |
2, 4, 6, 8, 10, 13, 15, 17, 20, 22, 24, 27
and 29 July 2026(c) |
|
|
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 |
840168 |
Impact Station (Alternative Monitoring
location of D2b) |
||
|
D2c |
ND/2024/09 |
824846 |
840373 |
Impact Station |
||
|
D2d |
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 in the reporting period, water quality
monitoring was conducted at station D1’.
(c) Impact water quality monitoring
on 31 July 2026 was cancelled due to safety concern under red rainstorm warning
signal hoisted.
The
equipment used in the impact water quality monitoring work is summarised in Table 2.11 below. Copies of the
calibration certificates are attached in Annex F1.
Table 2.11
impact Water Quality Monitoring Equipment
|
Parameters
(Unit) |
Equipment |
|
In-situ Measurement |
|
|
Dissolved Oxygen (mg/L
and % of saturation) |
[HORIBA]/
[U-53] (S/N: FXMONLLF) |
|
Salinity (ppt) |
|
|
Temperature (°C) |
|
|
pH |
|
|
Turbidity (NTU) |
|
|
Current Velocity (m/s) |
雲境天合 LS300-B |
|
Laboratory Analysis |
|
|
Suspended Solids (SS)
(mg/L) |
Sample Container: 1L Clear Plastic Bottle |
The
schedule for water quality monitoring during the reporting period is provided
in Annex F2.
A total
of twenty-six (26) monitoring events for impact water quality monitoring were
conducted at all designated monitoring stations in the reporting period. 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. Impact water
quality monitoring results and graphical presentations are provided in Annex F3.
No
exceedance of Action and Limit Levels was recorded for impact water quality
monitoring in the reporting period. No action was thus required in accordance
with the Event and Action Plan presented in Annex F4.
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 20 July 2026 at MPLV and 17 July 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,
no nesting or breeding activities of ardeids were recorded during the reporting
period. No construction activities were observed at the egretry
or within the 100m buffer area during the reporting period.
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.
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 are presented in Table 2.12 while usage of flight paths and
flight heights are provided in Table 2.13 and Table 2.14
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 2.12 number of
nests and ardeids recorded at MPLV Egretry
|
Species |
Number of Nests |
Number of Adults |
Number of
Chicks/Juveniles |
|
Little Egret |
12 |
7 |
12 |
|
Chinese Pond Heron (Ardeola bacchus) |
11 |
8 |
12 |
Table 2.13 usage of
flight paths recorded at MPLV egretry
|
Flight Path |
Number of Usage |
Percentage |
|
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% |
Table 2.14
usage of flight paths and flight heights recorded at mpLv egretry
|
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 |
|
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 |
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,
four (4) site inspections were carried out on 6, 13, 22 and 27 July 2026 for
ND/2024/09, and four (4) site inspections were carried out on 7, 16, 23 and 28
July 2026 for ND/2024/10.
No site
inspection was conducted by EPD in the reporting period.
Key
observations during the site inspections are summarized in Table 2.15.
Table 2.15
Key Observations Identified during the site inspection in this
Reporting Month
|
Inspection Date |
Environmental Observations |
Follow-up Status |
|
ND/2024/09 |
||
|
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. |
|
·
ND/2024/10 |
||
|
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. |
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 2.16. Details of cumulative waste management data are
presented as a waste flow table in Annex H.
Table 2.16
Quantities of Waste Generated in Reporting Period
|
Month |
Contract
No. |
Inert
C&D Materials (a) (b) (m3) |
Imported
Fill (c) (m3) |
Inert
Construction Waste Reused (d) (m3) |
Non-inert
Construction Waste (e) (tonnes) |
Recyclable
Materials (f) (tonnes) |
Chemical
Waste (tonnes) |
|
July 2026 |
ND/2024/09 |
0.00 |
0.00 |
0.00 |
55.56 |
0.021 |
0.00 |
|
ND/2024/10 |
13.58 |
0.00 |
0.00 |
221.01 |
0.000 |
0.00 |
|
|
Sub-total |
13.58 |
0.00 |
0.00 |
276.57 |
0.021 |
0.00 |
Note:
(a)
Inert construction wastes include hard rock and large broken concrete,
and materials disposed as public fill.
(b)
The conversion factor for inert C&D Materials is 2.4 tonnes/m3.
(c)
Imported materials from any source outside of the Project.
(d)
Reuse of inert construction waste generated under the Project.
(e)
Non-inert construction wastes include general refuse disposed at
landfill.
(f)
Recyclable materials include metals, paper, cardboard, plastics and
others.
A summary
of the Environmental Mitigation Implementation Schedule is presented in Annex I. The necessary
mitigation measures were implemented properly for the Project.
There was
no environmental complaint, notification of summons or successful prosecution
recorded in the reporting period. Statistics on environmental complaint,
notification of summons and successful prosecution for this project summarized
in Table 2.17.
Table 2.17
Statistics on environmental complaint, notification of summons or Successful
prosecution
|
Reporting Period |
Complaints |
Notification of
summons |
Successful prosecution |
|
This reporting period (July 2026) |
0 |
0 |
0 |
|
From commencement date of construction to
this reporting period |
1 |
0 |
0 |
Works to be undertaken in the next three months
are summarised in Table 3.1 below, together with key issues and the key
mitigation measures.
Table 3.1
Major Construction Works in the Next Three Months
|
Construction Works to
be Undertaken |
Key Issues |
Key Mitigation
Measures |
|
Contract No.
ND/2024/09 |
||
|
• 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) • Reuse of Marine Disposal from
Channel G • Tree Felling Works • Haul road (East & West)
construction • Arsenic soil treatment • Asbestos Abatement Works |
• Dust emission • Handling and storage of Asbestos • Handling and storage of C&D
materials • Handling contaminated soil • Noise from use of PME • Emission of dark smoke from PMEs • Proper discharge of wastewater • Prevention and proper discharge of
surface runoff • Tree protection |
• Good site practices • Regular water spraying on
stockpiles • Provide tarpaulin sheets coverage
on stockpiles and reuse of C&D materials as far as practicable • Use of QPME and noise
barrier/acoustic mat/enclosure • Regular maintenance of PMEs • Implementation of wastewater and
drainage management •
Retain and protect all existing trees and vegetation within the study
area which are not directly affected by the works •
Carry out land remediation in accordance with the approved EIA Land
Contamination Assessment. •
Properly house and cover excavated contaminated materials and exposed
contaminated surfaces to prevent contaminated runoff. •
Prohibit open stockpiling of contaminated materials. •
Collect and manage all contaminated runoff and wastewater generated from
decontamination works. •
Divert contaminated wastewater to suitable wastewater treatment
facilities (WTF) as required. •
Equip WTF with appropriate treatment processes (e.g. oil interceptor,
activated carbon) to reduce pollutants to acceptable levels and remove
prohibited substances (e.g. TPH) to undetectable levels. •
Ensure all treated effluent complies with TM‑DSS requirements. •
Discharge treated effluent to foul sewers or tanker off-site for
proper disposal. •
Ensure all asbestos handled by qualified specialists |
|
Contract No.
ND/2024/10 |
||
|
• Ground Investigation Work • Construction for Box Culvert • Construction of Sewerage Pipe • Construction of Containment Wall • Site Formation Works |
• Dust emission • Handling and storage of C&D
materials • Noise from use of PME • Emission of dark smoke from PMEs • Proper discharge of wastewater • Prevention and proper discharge of
surface runoff • Tree protection |
• Good site practices • Regular water spraying on
stockpiles • Provide tarpaulin sheets coverage
on stockpiles and reuse of C&D materials as far as practicable • Use of QPME and noise
barrier/acoustic mat/enclosure • Regular maintenance of PMEs • Implementation of wastewater and
drainage management • Retain and protect all existing
trees and vegetation within the study area which are not directly affected by
the works |
|
Contract No.
ND/2025/01 |
||
|
•
Site Clearance and
demolition • Tree Felling Works • Ground investigation • Asbestos survey and removal • Excavation and treatment of
high-Arsenic soil • Backfilling of treatment soil |
• Dust emission • Handling and storage of C&D
materials • Noise from use of PME • Emission of dark smoke from PMEs • Proper discharge of wastewater • Prevention and proper discharge of
surface runoff Tree protection • Handling and storage of Asbestos • Handling contaminated soil |
• Good site practices • Regular water spraying on
stockpiles • Provide tarpaulin sheets coverage
on stockpiles and reuse of C&D materials as far as practicable • Use of QPME and noise
barrier/acoustic mat/enclosure • Regular maintenance of PMEs • Implementation of wastewater and
drainage management •
Retain and protect all existing trees and vegetation within the study
area which are not directly affected by the works •
Carry out land remediation in accordance with the approved EIA Land
Contamination Assessment. •
Properly house and cover excavated contaminated materials and exposed
contaminated surfaces to prevent contaminated runoff. •
Prohibit open stockpiling of contaminated materials. •
Collect and manage all contaminated runoff and wastewater generated
from decontamination works. •
Divert contaminated wastewater to suitable wastewater treatment
facilities (WTF) as required. •
Equip WTF with appropriate treatment processes (e.g. oil interceptor,
activated carbon) to reduce pollutants to acceptable levels and remove
prohibited substances (e.g. TPH) to undetectable levels. •
Ensure all treated effluent complies with TM‑DSS requirements. •
Discharge treated effluent to foul sewers or tanker off-site for
proper disposal. • Ensure all
asbestos handled by qualified specialists |
The ET
will keep track on the construction works to confirm compliance with
environmental requirements and the proper implementation of all necessary
mitigation measures. The ET will also recommend to the Contractors about
the environmental toolbox topics on the abovementioned key issues for the next
reporting period.
The
tentative schedules for environmental monitoring in August, September and
October 2026 are provided in Annex
J. The upcoming air quality, noise and water quality monitoring
stations under ND/2025/01 summarized in Table
3.2 to Table 3.4. Detailed information for the monitoring will be
reported in the monthly report for August 2026.
Table 3.2
summary table for the air quality monitoring stations under ND/2025/01
|
Monitoring Station |
Location |
|
M02 |
Ha
Wan Fisherman San Tsuen |
|
M03 |
Pun Uk Tsuen |
|
M04 |
Chau
Tau Tsuen |
|
M09 |
Wing
Ping Tsuen |
|
M10 |
Village
house near San Tin Siu Hum Tsuen |
Table 3.3
summary table for the Noise monitoring stations under ND/2025/01
|
Monitoring Station |
Location |
|
|
CM9 |
285B
Wing Ping Tsuen |
|
|
CM10 |
291
Chau Tau Tsuen |
|
|
CM11 |
218
Chau Tau Tsuen |
|
|
CM12 |
74
Pun Uk Tsuen |
|
|
CM13 |
Village
house to the south of lamp post EA2021 |
|
|
CM14 |
616
Siu Hom Tsuen |
|
|
CM15 |
310
Wing Ping Tsuen |
|
|
CM16 |
Village
House near Pak Shek Au |
|
|
CM19 |
Temporary
Structure near Lok Ma Chau |
|
Table 3.4
summary table for the Water Quality monitoring stations under ND/2025/01
|
Monitoring Station |
Coordinates |
Description |
|
|
Easting |
Northing |
||
|
U1a’ |
826821 |
838974 |
Upstream Station |
|
U1b’ |
827146 |
840550 |
Upstream Station (Alternative Monitoring
location of U1b) |
|
G1a |
826686 |
839212 |
Gradient Station |
|
G1b |
826472 |
839908 |
Gradient Station |
|
G1c |
826339 |
840303 |
Gradient Station |
|
G1d |
826316 |
840657 |
Gradient Station |
|
D1’ |
825363 |
841421 |
Impact Station |
This
EM&A Report presents the findings of the EM&A activities undertaken for
the Project during the period of July 2026 in accordance with the EM&A
Manual and the requirements of the EPs. The environmental monitoring,
site inspection, environmental complaint handling and EM&A reporting in
works areas under Contract Nos. ND/2024/09 and ND/2024/10 were covered and
carried out.
Air
quality (1-hour RSP, 24-hour rolling average RSP and 24-hour rolling average
FSP), noise (impact and baseline), 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.
The
monitoring results for impact water quality monitoring complied with the
Action/ Limit levels in the reporting period
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.
There was
no environmental complaint notification of summons or prosecution recorded in
the reporting period.
The ET
will keep track on the construction works to confirm compliance with
environmental requirements and the proper implementation of all necessary
mitigation measures.