Environmental Team for
EP-598/2022 – Mai Po Nature Reserve
Infrastructure Upgrade Project
Final Environmental Monitoring and
Audit Review Report
REMARKS:
The information supplied and contained within this report is, to the best of our knowledge, correct at the time of printing.
Ka Shing accepts no responsibility for changes made to this report by third parties.
Ka Shing Management Consultancy Ltd. www.ka-shign.net
Unit 2, 13/F Kai Yue Commercial Building, 2C Argyle St,
Mong Kok, Kowloon
Certified By Environmental Team Leader:_____________________
(Joan Choi)
Company: Ka Shing
Management Consultancy Ltd.
WWF Hong Kong
Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
.
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Table of Contents
EXECUTIVE SUMMARY ...................................................................................................................... 3
E1. Introduction ..................................................................................................................... 3
E2. Environmental Monitoring and Audit Progress .............................................................. 3
E3. Water Quality .................................................................................................................. 3
E4. Breaches of Action and Limit Levels .............................................................................. 4
E5. Complaint Log ................................................................................................................ 4
E6. Notification of Summons and Successful Prosecutions .................................................. 4
E7. Reporting Changes .......................................................................................................... 4
1. INTRODUCTION………….. ..................................................................................................... 5
1.1 Background………… ..................................................................................................... 5
1.2 Purpose of the report……………………. ...................................................................... 5
1.3 Project Organization………………………. ................................................................... 6
1.4 Construction Programme ................................................................................................ 7
1.5 Summary of EM&A Requirement .................................................................................. 7
1.6 Status of Compliance with Environmental Permit (EP) Conditions ............................... 7
2 WATER QUALITY…………………. ........................................................................................ 9
2.1 Monitoring Requirements ............................................................................................... 9
2.2 Monitoring Equipment .................................................................................................. 11
2.3 Monitoring Procedure ................................................................................................... 12
2.4 QA/QC results and detection limits .............................................................................. 12
2.5 Discussion and Recommendations ................................................................................ 14
2.6 Summary of Results and Observations ......................................................................... 14
3 ENVIRONMENTAL SITE INSPECTION ............................................................................. 16
3.1 Site Audits…………………. ........................................................................................ 16
3.2 Implementation Status of Environmental Mitigation Measures ................................... 19
4 ENVIRONMENTAL NON-COMPLIANCE ........................................................................... 20
4.1 Summary of Exceedances ............................................................................................. 20
4.2 Summary of Environmental Non-Compliance.............................................................. 20
4.3 Summary of Environmental Complaint ........................................................................ 20
4.4 Summary of Environmental Summon and Successful Prosecution .............................. 20
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5 COMMENTS, CONCLUSION AND RECEOMMENDATIONS .......................................... 21
5.1 Comments…………………… ..................................................................................... 21
5.2 Conclusion…………………......................................................................................... 21
5.3 Recommendations……………… ................................................................................. 22
LIST OF TABLES
Table E 1
Summary Table for EM&A Activities in the Reporting Month
Table E 2
Summary Table for Events Recorded in the Reporting Month
Table 1. 1
Key Contacts of the Project
Table 1. 2
Status of Environmental Licences, Notifications and Permits
Table 1. 3
Summary Table for Status of Compliance / Required Submission under EP
Table 2. 1
Summary of Monitoring Parameters
Table 2. 2
Water Quality Monitoring Locations
Table 2. 3
Action and Limit Levels for Water Quality
Table 2. 4
Event / Action Plan for Water Quality
Table 2. 5
Equipment Used in water impact Monitoring
Table 2. 6
Summary of exceedances of the Action Level
Table 3. 1
Observations and Follow Up Action of Site Audit
LIST OF APPENDICES
Appendix A Location of the Project
Appendix B Locations for Water Quality Monitoring
Appendix C Calibration Certificates of Equipment
Appendix D The Graphical Presentation of Water Quality Monitoring
Appendix E The Environmental Mitigation Implementation Schedule (EMIS)
Appendix F Waste Generation in the Reporting Month
Appendix G The Summary of Exceedance Record
Appendix H Complaint Log
Appendix I Summary of Successful Prosecution
Appendix J The Construction Programmes
Appendix K Locations of Representative Air Sensitive Receivers (ASRs), Noise Sensitive
Receivers (NSRs) and Water Sensitive Receivers (WSRs)
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EXECUTIVE SUMMARY
E1. Introduction
This is the Final Environmental Monitoring and Audit (EM&A) Report presents EM&A for the
Mai Po Nature Reserve Infrastructure Upgrade Project No. EP-598/2022. This report was
prepared by Ka Shing Management Consultancy Ltd. (Ka Shing) under “Mai Po Nature Reserve
Infrastructure Upgrade Project No. EP-598/2022” (hereinafter called the “Service Contract”).
This report documents the findings of Environmental Monitoring and Audit (EM&A) work
conducted from 1
st
June to 16
th
October 2023.
E2. Environmental Monitoring and Audit Progress
The monthly EM&A programme was undertaken by the ET in accordance with the EM&A
Manual. A summary of the monitoring and audit activities during the reporting period is
presented below:
Table E 1 Summary Table for EM&A Activities in the Reporting Month
EM&A Activities
Date
Water Quality Monitoring
Please refer to the Appendix D for more details
Weekly Environmental Site Inspection
5 ,12, 19 & 26 June 2023
Weekly Environmental Site Inspection
3 ,11 ,20 & 25 July 2023
Weekly Environmental Site Inspection
1 ,8 ,15,23&29 August 2023
Weekly Environmental Site Inspection
5 ,12 ,19 & 26 September 2023
Weekly Environmental Site Inspection
5 ,10 & 16 October 2023
E3. Water Quality
All water quality monitoring at Sluice Gate 7 and Sluice Gate 19 was conducted as scheduled
from June to August 2023. During the reporting month in June 2023, exceedances of the Action
Level and Limit Level of Suspended Solid, Dissolved Oxygen and Turbidity were observed. As
the site work carried out on the aforesaid dates did not involve any wet trade works, the
exceedances were not considered to be related to the construction activities. The exceedances
may be due to external factors which were not project-related. In July and August 2023, no
project-related exceedance of Action/ Limit Level of Suspended Solid, Dissolved Oxygen and
Turbidity were observed.
According to Section 4.2.8 of the EM&A Manual, the precautionary water quality monitoring
shall be carried out when foundation works are carried out at TH2 and TH3. The foundation
works of TH2 and TH3 are completed on 12
th
Jul 2023 and 01
st
Aug 2023 respectively.
Precautionary water monitoring conducted on 1
st
, 3
rd
, 5
th
and 8
th
August 2023 showed no
exceedance of Action/ Limit Level. According to Section 4.2.9 of the EM&A Manual, post-
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construction monitoring is not required. Therefore, water quality monitoring at Sluice Gate 7 and
Sluice Gate 19 is no longer necessary after 8
th
August 2023.
E4. Breaches of Action and Limit Levels
Summary of the environmental exceedances of the reporting month is tabulated in Table E2.
Table E 2 Summary Table for Events Recorded in the Reporting Month
Environmental
Monitoring
Parameter
No. of non-
project
related
exceedances
Total No. of
non-project
related
exceedances
No. of
exceedances
related to the
project
Total No. of
exceedance
related to
the
project
AL
LL
AL
LL
Water Quality
SS
2
2
2
0
0
0
DO
2
2
2
0
0
0
Turbidity
4
4
4
0
0
0
Water Quality
SS
0
0
0
0
0
0
DO
0
0
0
0
0
0
Turbidity
0
0
0
0
0
0
Water Quality
SS
0
0
0
0
0
0
DO
0
0
0
0
0
0
Turbidity
0
0
0
0
0
0
E5. Complaint Log
No environmental complaint was received in the reporting period.
E6. Notification of Summons and Successful Prosecutions
No notification of summons or successful prosecutions was received in the reporting period.
E7. Reporting Changes
There was no reporting change in the reporting period.
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1. INTRODUCTION
1.1 Background
1.1.1 The Mai Po Nature Reserve has served Hong Kong as one of the most valuable ecological
assets in the city, and is managed by the World Wide Fund for Nature Hong Kong (“WWF”).
WWF proposes to update of an existing concrete footpath of about 1.5m wide to a raised
wooden boardwalk of about 1.65m wide, construction of a new three-storey tower hide (TH2)
and the associated access wooden boardwalk of about 156m long and 1.65m wide; and
construction of a new three-storey tower hide (TH3) and the associated access wooden
boardwalk of about 85m long and 1.65m wide. The location of the Project as shown in the
Appendix A of this report.
1.1.2 The project site is located in Mai Po Nature Reserve (MPNR) where has been managed by
World Wide Fund for Nature Hong Kong (“WWF”) since 1984. More than 20,000 people per
year visiting the MPNR and growing in visitor numbers is anticipated. Most of the existing
facilities have been in use for more than 20 years, in order to cater for an increasing number of
visitors and providing the good condition of facilities in the future, the upgrade of
infrastructure is proposed. The WWF had completed an Environmental Impact Assessment
(EIA) and is the Permit Holder.
1.1.3 The Project under Mai Po Nature Reserve Infrastructure Upgrade Project (Register No.
AEIAR-233/2022) is approved by the EIA report and later granted an EP. The approved EIA
report described both the construction phase and operational phase.
1.1.4 Ka Shing Management Consultancy Ltd. has been commissioned by the WWF to undertake
the assignment as the Environmental Team (ET) for the Designated Project of Mai Po Nature
Reserve Infrastructure Upgrade Project.
1.1.5 In accordance with the Project EM&A Manual requirements, water quality monitoring, and
site inspections should be covered in this Contract. Overall, the EM&A works follows the
demarcation of monitoring responsibilities.
1.2 Purpose of the report
1.2.1 This is the final EM&A Report which summarises the impact monitoring results and audit
findings for the EM&A programme during the reporting period from 1
st
June 2023 to 16
th
October 2023.
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1.3 Project Organization
1.3.1 EM&A Organization
1.3.2 Different parties with different levels of involvement in the Project organization under EP no.:
EP-598/2022 include:
• Project Proponent – WWF Hong Kong
• Contractor– Mak Ko Kee Building Construction Ltd
• Environmental Team (ET) – Ka Shing Management Consultancy Ltd.
• Independent Environmental Checker (IEC) – Ove Arup & Partners Hong Kong
Limited
1.3.3 The key personnel contact names and numbers under Mai Po Nature Reserve Infrastructure
Upgrade Project and the other contact names and numbers under WWF (Hong Kong) are
summarised in Table 1.1.
Table 1. 1 Key Contacts of the Project
Party
Role
Contact Person
Phone No.
Fax No.
WWF Hong Kong
Project Proponent
Mr. Alex WONG
2526 1011
2161 9628
Contractor
(Mak Ko Kee Building
Construction Ltd)
Site Agent
Mr. Kin Hung LAM
2649 1883
2647 7389
Ka Shing Management
Consultancy Ltd.
ETL
Ms. Joan CHOI
2618 2166
2120 7752
Ove Arup & Partners
Hong Kong Limited
IEC
Mr. Ricky CHUI
2268 3437
2268 3380
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1.4 Construction Programme
1.4.1 A copy of Contractors’ construction programmes is provided in Appendix J.
1.4.2 A summary of the relevant permits, licences, and/or notifications on environmental protection
for this Project is presented in Table 1.2.
Table 1. 2 Status of Environmental Licences, Notifications and Permits
Permit / Licence No.
Valid Period
Status
From
To
1. Environmental Permit (EP)
EP-598/2022
16 Feb 2022
N/A
Valid
2. Air Pollution Control (Construction Dust) Regulation
493298
02 Jun 2023
N/A
Notified
1.5 Summary of EM&A Requirement
1.5.1 The EM&A programme requires water quality monitoring as well as environmental site audits.
The EM&A requirements are described in the following sections, including:
⚫
All monitoring parameters;
⚫
Action and Limit levels for all environmental parameters;
⚫
Event / Action Plans;
⚫
Environmental mitigation measures, as recommended in the Project EIA study final report;
and
⚫
Environmental requirements in contract documents.
1.6 Status of Compliance with Environmental Permit (EP) Conditions
1.7.1 The status of statutory environmental compliance with the EP conditions under the
EIAO, submission status under the EP and implementation status of mitigation
measures are presented in Table 1.3:
Table 1. 3 Summary Table for Status of Compliance / Required Submission under EP
EP Conditions
Submission
Status
1.12
Notification of Commencement Date of
Construction
Completed
2.1
Employment of Environmental Team (ET)
Completed
2.4
Employment of IEC
Completed
2.7
Employment of Qualified Ecologist
Completed
2.8
Submission of Environmental Permit (EP)
Submission Schedule
Completed
2.9
Submission of Tree Pruning or Felling Plan
Completed
2.11
Submission of Egretry Mitigation Measures
Completed
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Plan
2.13
Submission of Method Statement and
Management Plan for the Design and
Construction of the Wooden Boardwalk
Completed
2.14
Submission of Water Quality Mitigation
Measures Plan
Completed
2.15
Measures to Mitigate Ecological Impacts for
water birds and wetland-dependent species
Completed
2.16
Measures to Mitigate Ecological Impacts for
roost and pre-roost sites of Collared Crow and
ardeid
Completed
3.2(i)
Conducting baseline environmental monitoring
Completed
3.2(ii)
Conducting impact monitoring
Completed
3.2(iii)
carrying out remedial actions described in the
Event/Action Plans of the EM&A Manual
Completed
3.2(iv)
Logging and keeping records of the details of
conducting baseline and impact monitoring
Completed
3.3
Submission of copy of Baseline Monitoring
Report
Completed
3.4
Submission of copy of Monthly EM&A Report
Completed
4.1
Submission of electronic copies of the Baseline
Monitoring Report and Monthly EM&A
Reports
Completed
4.2
Internet address of a dedicated web site
Completed
4.3
The Internet website is user-friendly for the
public access
Completed
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2 WATER QUALITY
2.1 Monitoring Requirements
2.1.1 The Environmental Monitoring and Audit requirements are set out in the approved EM&A
Manual. Water quality was identified as key environmental issues during the construction
phase. A summary of the requirements (Monitoring Parameters, Time and Frequency) for
conducting impact water quality monitoring is presented in the sub-sections below.
Table 2. 1 Summary of Monitoring Parameters
Environmental
Aspect
Parameters
Frequency and period
Water Quality
• Water depth
• pH
• Temperature in
o
C
• Salinity in mg/L
• Turbidity in NTU
• Dissolved Oxygen (DO) in %
saturation and mg/L
• Suspended Solids (SS) in mg/L
• Oil and Grease (O&G) in mg/L
3 times per week, with a
minimum interval of 36 hours,
when foundation works are
carried out at TH2 and TH3
2.1.2 Surrounding the Project Site, there are also a number of commercial fishponds while the
Site itself is located within the Mai Po Marshes Site of Special Scientific Interest and the
Inner Deep Bay Site of Special Scientific Interest is located west of the Project Site. Within
the 500m assessment area, eight representative Water Sensitive Receivers (WSRs) have
been identified, as shown in Appendix K. According to the approved EM&A Manual,
water quality monitoring should be performed at designated monitoring stations. Layout
plans showing the approved monitoring locations are attached in Appendix B. Details
regarding the two designated water quality monitoring stations are shown in Table 2.2
below:
Table 2. 2 Water Quality Monitoring Locations
LOCATION
EASTING
NORTHING
Sluice Gate 7
822107
839868
Sluice Gate 19
821344
838681
2.1.3 Precautionary monitoring results shall be evaluated against Action and Limit levels shown
in Table 2.3, with action being taken as per the Event/Action Plan shown in Table 2.4
where necessary. Please note that the Event/Action Plan relates only to exceedances that
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are directly attributable to the construction works of this Project, over which the installation
contractor has control. The advice of the IEC shall be sought in case of any concern.
Table 2. 3 Action and Limit Levels for Water Quality
Parameter
Performance
Criteria
Monitoring Location
Sluice Gate 7
Sluice Gate 19
Dissolved Oxygen (mg/L)
Action Level
2.85
2.47
Limit Level
2.83
2.45
Suspended Solids (mg/L)
Action Level
99.6
120.3
Limit Level
107.9
121.7
Turbidity (NTU)
Action Level
47.1
122.2
Limit Level
47.2
122.8
Table 2. 4 Event / Action Plan for Water Quality
EVENT
CONTRACTOR / ET
IEC
ER
Action
1.
Repeat sampling event.
1.
Discuss with
1.
Discuss with IEC on
Level
2.
Inform EPD and AFCD and
Contractor/ET on the
the proposed
Exceedance
confirm notification of the
mitigation measures
mitigation measures;
non-compliance in
2.
Review proposals on
2.
Make agreement on
writing.
mitigation measures
the mitigation
3.
Discuss with contractor
submitted by Contractor
measures to be
and the IEC the most
and advise the ER
implemented;
appropriate method of
accordingly.
3.
Assess the
reducing water quality
3.
Assess the effectiveness
effectiveness of the
pollution during
of the implemented
implemented
construction and agree
mitigation measures.
mitigation measures.
with EPD.
4.
Repeat measurements
after implementation of
mitigation for
confirmation of
compliance.
5.
If non-compliance
continues, increase
measures in Step 3 and
repeat measurement in
Step 4. If non-compliance
occurs a third time,
suspend construction
works and continue
sampling until normal
water quality resumes.
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EVENT
CONTRACTOR / ET
IEC
ER
Limit Level
Suspend construction works
Undertake Steps 1-3
Undertake Steps 1-3
Exceedance
and undertake Steps 1-4
immediately
immediately and consider
immediately. Construction
and instruct, if necessary,
works should only continue
the Contractor to slow
when the water quality shows
down or to stop all or
compliance again.
part of the construction
works until no
exceedance of Limit level.
2.2 Monitoring Equipment
2.2.1 DO and water temperature should be measured in-situ by a DO/temperature meter. The
equipment should be portable and weather proof using a DC power source. It should have a
membrane electrode with automatic temperature compensation complete with a cable. The
equipment should be capable of measuring:
• A DO level in the range of 0-20 mg/l and 0-200% saturation; and
• A temperature of between 0 and 45 degrees Celsius.
2.2.2 A portable pH meter capable of measuring a range between 0.0 and 14.0 should be provided
to measure pH under the specified conditions (e.g., Orion Model 250A or an approved
similar instrument) according to the Standard Methods, APHA.
2.2.3 Turbidity should be measured in situ by the nephelometric method. The instrument should
be portable and weatherproof using a DC power source complete with cable, sensor and
comprehensive operation manuals. The equipment should be capable of measuring turbidity
between 0-1000 NTU.
2.2.4 A water sampler, consisting of a transparent PVC or glass cylinder of a capacity of not less
than two litres which can be effectively sealed with cups at both ends should be used.
2.2.5 In-situ monitoring instruments should be checked, calibrated and certified by a laboratory
accredited under HOKLAS or other international accreditation scheme before use, and
subsequently re-calibrated at 3 monthly intervals.
2.2.6 Equipment used in water quality monitoring is summarized in Table below. Calibration
certificates of equipment used are attached in Appendix C.
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Table 2. 5 Equipment Used in water impact Monitoring
Environmental Aspect
Equipment
Model
Serial number
Water Quality
Multifunctional Meter
Pro DSS
18E105421
2.3 Monitoring Procedure
2.3.1 Field measurement procedures for each set of the water quality measurement are as follows:
i. The DO probe of the multifunctional meter (Model Pro DSS) is checked by wet bulb
method; the pH and turbidity probes are checked against standard solutions. Record the
checking result;
ii. Record the field condition including weather conditions and any other potential source
of interference;
iii. Lower the water sampler into water body and rinse it with water in the target water
body;
iv. Fill the water sampler until adequate sample is collected. Replicate sample at each
monitoring location is required;
v. Rinse the bottles by the sample before transferring samples into containing bottles;
vi. Rinse the probe of multifunctional meter (Model Pro DSS) with distilled water;
vii. Measure and record temperature, turbidity, pH value and DO of each bottle of sample;
viii. Bottles containing sample is stored temporarily in insulation box with ice until reaching
the HOKLAS laboratory (ETS-Testconsult Ltd).
ix. The QA/QC details shall be in accordance with the requirements of HOKLAS.
2.3.2 The water samples shall be delivered to a HOKLAS laboratory as soon as possible for
analysis, which shall start the next working day after the collection of samples. Analyses
shall follow standard methods as described in APHA Standard Methods for the
Examination of Water and Wastewater, 19th Edition, unless otherwise specified (APHA
2540D for SS and APHA 5520C for O&G). The QA/QC details shall be in accordance with
the requirements of HOKLAS.
2.4 QA/QC results and detection limits
QA/QC results
2.4.1 Responses of sensors and electrodes have been checked with certified standard solutions
before each use. Wet bulb calibration for a DO meter have been carried out before
measurement at each monitoring location.
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2.4.2 The monitoring data were managed by the ET’s in-house data recording and system. The
Laboratory, responsible for the analysis, adhered to QA/QC requirements as outlined under
the HOKLAS scheme.
2.4.3 In-situ monitoring data measured by the equipment were recorded by both field operators
and the equipment itself. Laboratory analysis results were directly issued by the designated
laboratory. All data were subsequently entered into a computerized database, appropriately
maintained by the ET. Cross-checking of results was conducted by other personnel.
2.4.4 In addition to the water quality parameters, other relevant data have also been measured and
recorded in field logs, including coordinates of the sampling stations, the location of
construction works at the time of sampling, sampling depth, weather conditions, special
phenomena and work activities undertaken around the monitoring and works area that may
influence the monitoring results, etc.
2.4.5 Throughout the monitoring period until August 2023, no significant change was observed in
the trend line of in-situ data measured for each water monitoring at designated monitoring
locations.
2.4.6 With the implementation of the measures recommended in the approved EM&A Manual, no
project-related exceedance of water quality monitoring was identified.
2.4.7 The above QA/QC results demonstrate that the equipment, lab analysis, field personnel, and
methodology for the EM&A monitoring are fit for their intended purpose and can provide data
of acceptable quality and reliability, as per the requirements outlined in the EM&A Manual.
The QA/QC information assures that any exceedances or non-compliances detected are valid
and not due to monitoring deficiencies.
Detection limits
2.4.8 DO and Temperature Measuring Equipment capable of measuring DO in the range of 0 to 20
mg/L and 0 to 200% saturation; and temperate of 0 to45 C, which shall be checked, calibrated.
2.4.9 Portable salinometer capable of measuring salinity in the range of 0-40 mg/l shall be provided
for measuring salinity of the water and certified before use by a HOKLAS laboratory.
2.4.10 Turbidity Measurement Equipment capable of measuring turbidity between 0-1000 NTU and
certified before use by a HOKLAS laboratory.
2.4.11 A high density 1L capacity polythene bottle shall be used to collect a water sample from just
below the water surface for SS measurements while water sample for O&G measurement shall
be collected in glass bottles and preserved by addition of H
2
SO
4
. At least two replicate samples
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should be collected from each location. After fully filling the bottles, they shall be cooled to 4
C without being frozen.
2.5 Discussion and Recommendations
2.5.1 The monitoring of water quality was conducted during typical wet season in Hong Kong.
2.5.2 Review of the conditions may need to be conducted regularly, in particular during weather
condition changes. If the changes in baseline conditions are evident, the environmental
performance criteria should be re-established by agreement of the ER and IEC and
submitted to EPD for endorsement.
2.6 Summary of Results and Observations
2.6.1 All water quality monitoring was conducted as scheduled from June to August 2023.
2.6.2 The monitoring results and graphical presentation of water quality monitoring at the
monitoring stations are shown in Appendix D.
2.6.3 From June to August 2023, no project-related exceedances of the Action/ Limit Level of
Dissolved Oxygen, Suspended Solids, and Turbidity were observed Detail is summarized as
below:
Table 2. 6 Summary of exceedances of the Action Level
Environmental
Monitoring
Parameter
No. of non-
project
related
exceedances
Total No. of
non-project
related
exceedances
No. of
exceedances
related to the
project
Total No. of
exceedance
related to
the
project
AL
LL
AL
LL
Water Quality
SS
2
2
2
0
0
0
DO
2
2
2
0
0
0
Turbidity
4
4
4
0
0
0
Water Quality
SS
0
0
0
0
0
0
DO
0
0
0
0
0
0
Turbidity
0
0
0
0
0
0
Water Quality
SS
0
0
0
0
0
0
DO
0
0
0
0
0
0
Turbidity
0
0
0
0
0
0
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2.6.4 As the site work carried out in June 2023 did not involve any wet trade works, the
exceedances were not considered to be related to the Project. The exceedances may be due
to external factors which were not project-related. The summary of exceedance record in
reporting month is shown in Appendix G.
2.6.5 According to Section 4.2.8 of the EM&A Manual, the precautionary water quality
monitoring shall be carried out when foundation works are carried out at TH2 and TH3.
The foundation works of TH2 and TH3 are completed on 12
th
Jul 2023 and 01
st
Aug 2023.
2.6.6 Precautionary water monitoring conducted on 1
st
, 3
rd
, 5
th
and 8
th
August 2023 showed no
exceedance of Action/ Limit Level. According to Section 4.2.9 of the EM&A Manual, post-
construction monitoring is not required. Therefore, water quality monitoring at Sluice Gate
7 and Sluice Gate 19 is no longer necessary after 8
th
August 2023.
2.6.5 Site audits were carried out on a weekly basis to monitor and audit the timely
implementation of water quality mitigation measures within the site boundaries of this
Project. The summaries of site audits are attached in Table 3.1.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
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16
3 ENVIRONMENTAL SITE INSPECTION
3.1 Site Audits
3.1.1 Site audits were carried out by ET on weekly basis to monitor the timely implementation of
proper environmental management practices and mitigation measures on the Service
Contract site.
3.1.2 Site audits were conducted once a week by ET with the client’s Representative and the
Contractor from June to October 2023 in the reporting period. Joint site audits with the
Client representative, the Contractor and IEC were conducted twice a week.
3.1.3 During site inspections in the reporting period, no non-compliance was identified. The
observations and recommendations made during the audit sessions are summarised in
Table 3.1.
Table 3. 1 Observations and Follow Up Action of Site Audit
Parameters
Date
Observations
Follow Up Action
Air Quality
05/6/2023
The NRMM label for the excavator
is missing. Please ensure the label is
properly demonstrated.
The NRMM label has been
displayed for the excavator.
12/06/2023
Imposition of speed controls for
vehicles on Site.
Imposition of speed controls for
vehicles on Site.
12/06/2023
Use of approved non-road mobile
machinery (NRMM) for all site
works areas.
The NRMM label has been
displayed for the excavator.
19/06/2023
Imposition of speed controls for
vehicles on Site.
Imposition of speed controls for
vehicles on Site.
19/06/2023
Use of approved non-road mobile
machinery (NRMM) for all site
works areas.
The NRMM label has been
display for the excavator.
26/06/2023
Use of approved non-road mobile
machinery (NRMM) for all site
works areas.
The NRMM label has been
display for the excavator.
11/07/2023
The NRMM label for the generator
is missing. Please ensure the label is
properly demonstrated.
The NRMM labels are displayed
on the generator.
26/09/2023
Regular watering to the exposed
grounds and unpaved roads is
necessary. (TH2 & TH3)
Regular watering to the exposed
grounds and unpaved roads has
been used.
05/10/2023
Regular watering to the exposed
grounds and unpaved roads is
necessary. (TH2)
Regular watering to the exposed
grounds and unpaved roads has
been used.
10/10/2023
Solid screen is recommenced to be
erected around the dusty work.
(TH2)
The dusty work was screened.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
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17
Parameters
Date
Observations
Follow Up Action
Construction
Noise Impact
11/07/2023
The QPME label for the generator
is missing. Please ensure the label is
properly demonstrated.
The QPME labels are displayed on
the generator.
Water
Quality
12/6/2023
Perimeter channels at site
boundaries shall be provided to
intercept storm runoff from outside
the works areas so that it will not
wash across the works areas and to
direct all site runoff only into
adjacent drained geiwai.
Perimeter channels at site
boundaries has been provided to
intercept storm runoff from outside
the works areas so that it will not
wash across the works areas and to
direct all site runoff only into
adjacent drained geiwai.
12/6/2023
A perimeter bund has been
constructed around the work sites
for TH2 and TH3 to ensure that any
runoff generated from within these
sites is discharged only into the
adjacent drained geiwai.
A perimeter bund has been
constructed around the work sites
for TH2 and TH3 to ensure that any
runoff generated from within these
sites is discharged only into the
adjacent drained geiwai.
12/6/2023
Tarpaulin covering the perimeter
bund to prevent construction site
runoff leakage through sand bags.
Tarpaulin has been covering the
perimeter bund to prevent
construction site runoff leakage
through sand bags.
19/6/2023
Perimeter channels at site
boundaries shall be provided to
intercept storm runoff from outside
the works areas so that it will not
wash across the works areas and to
direct all site runoff only into
adjacent drained geiwai.
Perimeter channels at site
boundaries has been provided to
intercept storm runoff from outside
the works areas so that it will not
wash across the works areas and to
direct all site runoff only into
adjacent drained geiwai.
19/6/2023
Tarpaulin covering the perimeter
bund to prevent construction site
runoff leakage through sand bags.
Tarpaulin has been covering the
perimeter bund to prevent
construction site runoff leakage
through sand bags.
03/07/2023
Tarpaulin covering the perimeter
bund to
prevent construction site runoff
leakage
through sand bags.
Tarpaulin covering the bund to
construction site runoff leakage
through sand bags.
03/07/2023
A perimeter bund will be
constructed around the work sites
for TH2 and TH3 to ensure that any
runoff generated from within these
sites is discharged only into the
adjacent drained geiwai.
A perimeter bund has constructed
around the work sites for TH2 and
TH3 to ensure that any runoff
generated from within these sites is
discharged only into the adjacent
drained geiwai.
11/07/2023
During re-fueling, drip trays shall
be provided at any fuel connection
point. Any spilled fuel shall be
collected and taken off-site for
proper treatment disposal.
The fuel bottle was removed.
20/07/2023
Incomplete/damaged perimeter
bund were found on sites (TH2 &
TH3)
All damages on 2m-high opaque
screen were fixed.
01/08/2023
Damaged sand bags/bund at TH3
entrance.
Repair sand bags/bund at TH3
entrance
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Environmental Team for
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Final EM&A Report
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Parameters
Date
Observations
Follow Up Action
Water
Quality
15/08/2023
Perimeter bund shall be constructed
around the work site at TH2.
Perimeter bund constructed around
the work site at TH2.
23/08/2023
Channel shall be provided the work
site at TH2. Clear the blockage of
the channel.
The blockage in the channel has
been cleared.
29/08/2023
Bunds shall be constructed the work
areas at TH2 & TH3.
Bunds has been constructed the
work areas at TH2 & TH3.
Ecology
05/06/2023
Install a 2m-high solid, opaque
screen around works areas.
Install a 2m-high solid, opaque
screen around works areas.
11/07/2023
Install a 2m-high solid, opaque
screen around works areas.
The defect on the screen was fixed.
20/07/2023
Damages on perimeter screen (both
TH2 & TH3) were found after
typhoon.
Damages / Incompletion on
tarpaulin covered perimeter bunds
(TH2 &TH3). Sand bund was
reinstated at the Entrance of TH2.
25/07/2023
Perimeter screen of TH2 is under
modification
The modification of 2m-high
opaque screen is completed.
01/08/2023
Loosen hoarding screen was found
at TH2.
Repair hoarding screen at TH2.
08/08/2023
Install 2m-high solid, opaque screen
at TH2.
2m-high solid, opaque screen at
TH2 has been installed.
15/08/2023
Install 2m-high solid, opaque screen
at TH3.
2m-high solid, opaque screen at
TH3 has been installed.
Waste /
Chemical
Management
12/06/2023
The Contractor shall ensure that
different types of wastes are
segregated on-site and stored in
different containers, skips or
stockpiles to facilitate
reuse/recycling of waste and, as the
last resort, disposal at different
outlets.
The Contractor has been ensured
that different types of wastes are
segregated on-site and stored in
different containers, skips or
stockpiles to facilitate
reuse/recycling of waste and, as the
last resort, disposal at different
outlets.
19/06/2023
The Contractor shall ensure that
different types of wastes are
segregated on-site and stored in
different containers, skips or
stockpiles to facilitate
reuse/recycling of waste and, as the
last resort, disposal at different
outlets.
The Contractor has been ensured
that different types of wastes are
segregated on-site and stored in
different containers, skips or
stockpiles to facilitate
reuse/recycling of waste and, as the
last resort, disposal at different
outlets.
08/08/2023
Objects and material need cover or
remove at the outside of TH3.
Objects and material used tarpaulin
covering.
08/08/2023
Material need cover or remove at
TH2.
Material was covering.
Landscape
and Visual
--
No environmental deficiency was
identified during the reporting
period.
--
Permit
/Licences
05/09/2023
No Environmental Permit displayed
at TH3.
The Environmental Permit was
displayed at TH3.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
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Parameters
Date
Observations
Follow Up Action
Other
29/08/2023
Damage found on screen / re-install
the fall-off part of the screen.
Damage on the screen and reinstall
the fall-off part of the screen at
works areas TH2 & TH3 have been
fixed.
05/09/2023
The screen at TH2 is not in an
upright position.
The screen at TH2 was made to the
upright position.
12/09/2023
The screen at TH2 is not 2m-high
as required.
The screen was made to 2m-
high at TH2.
19/09/2023
Gap is found on the screen at TH2.
The screen was fixed.
05/10/2023
Make good the defect on the screen
The screen was fixed.
3.2 Implementation Status of Environmental Mitigation Measures
3.2.1 According to the EIA Report, Environmental Permit and the EM&A Manual of the Project,
the mitigation measures detailed in the documents are recommended to be implemented
during the construction phase. An updated summary of the Environmental Mitigation
Implementation Schedule (EMIS) is provided in Appendix E.
3.2.2 During site inspections in the reporting period, the Contractor’s readiness with the
mitigation measures was found generally satisfactory despite some
observations/recommendations as detailed above were raised.
3.2.3 Waste generated from this Project includes inert C&D materials and non-inert C&D
materials. Non-inert C&D materials are made up of general refuse and waste that cannot be
reused or recycled and has to be disposed of at the designated landfill sites. Throughout the
reporting period, no waste was disposed of at the designated landfill, demonstrating that no
waste was sent there during the entire reporting period. The amount of wastes generated by
the construction works of the Project during the reporting period is shown in Appendix F.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
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4 ENVIRONMENTAL NON-COMPLIANCE
4.1 Summary of Exceedances
4.1.1 All water quality monitoring was conducted as scheduled from June to August 2023.
During the monitoring period, no project-related exceedance to action/ limit Level of
suspended solid, dissolved oxygen and turbidity were observed.
4.1.2 Based on the monitoring results of the environmental parameters at the designated
stations during the reporting period from June to August 2023, it has been determined that
no project-related exceedances of the action/limit levels for suspended solids, dissolved
oxygen, and turbidity were observed. The summary of exceedance records for the
reporting period can be found in Appendix G.
4.2 Summary of Environmental Non-Compliance
4.2.1 No environmental project-related non-compliance was recorded during the reporting
period.
4.3 Summary of Environmental Complaint
4.3.1 In accordance with the EM&A Manual, complaints should be referred to the ET for action.
During the complaint investigation works, the ET and IEC as established according to EP
can carry out Ad-hoc site inspections to identify the source of the complaint, review the
effectiveness of the Contractor’s remedial measures and the updated situation once
received the complaint. In addition, additional monitoring and audit can also be arranged
immediately to verify the situation if necessary. ET and IEC will also oversee the
circumstances that leading to the complaint do not recur. Moreover, ET and IEC can
cooperate efficiently with the Contractor on site for completion of the investigation.
4.3.2 There was no environmental complaint received during the reporting period.
4.4 Summary of Environmental Summon and Successful Prosecution
4.4.1 There was no successful environmental prosecution or notification of summons received
since the Project commencement.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
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21
5 COMMENTS, CONCLUSION AND RECEOMMENDATIONS
5.1 Comments
5.1.1 The mitigation measures detailed in the Environmental Permit, the EM&A Manual and the
EIA report were implemented throughout the reporting period. With the environmental
monitoring and site inspection ensuring the timely implementation of mitigation measures,
the environmental performance of the Project was acceptable.
5.1.2 The overall performance of the monitoring methodology adopted and environmental
management system in this Project was effective.
5.1.3 Baseline and impact water quality monitoring was carried out according to the requirements
listed in the EM&A Manual. Water quality monitoring at Sluice Gate 7 and 19 proceeded
as planned from June to August 2023. In June, levels of Suspended Solid, Dissolved
Oxygen, and Turbidity exceeded the Action and Limit Levels, likely due to external, non-
project factors as no wet trade works were involved then. No such exceedances were noted
in July and August.
5.1.4 Based on the investigation, the occasional exceedances were non-project related. In general,
the monitoring parameters were within the range of the baseline levels.
5.2 Conclusion
5.2.1 This is the Final Environmental Monitoring and Audit (EM&A) Report presenting EM&A
for the Mai Po Nature Reserve Infrastructure Upgrade Project No. EP-598/2022. This report
documents the findings of Environmental Monitoring and Audit (EM&A) programme from
1
st
June to 16
th
October 2023.
5.2.2 Impact monitoring for construction water quality was performed from June to August 2023.
5.2.3 Similar to predictions from the EIA report, no project-related exceedance was identified from
the EM&A programme during the reporting period.
5.2.4 No environmental complaint, notification of summons or successful prosecutions was
received during the reporting period.
5.2.5 The ET has kept track on the EM&A programme to ensure compliance of environmental
requirements and the proper implementation of all necessary mitigation measures.
5.2.6 Weekly site inspections were performed during the reporting period.
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Environmental Team for
EP-598/2022 – Mai Po Nature Reserve Infrastructure Upgrade Project
Final EM&A Report
.
22
5.2.7 The EM&A programme was found to be effective and efficient in monitoring impacts
arising from the Project. The findings of the environmental monitoring program suggest that
no adverse impacts on sensitive receivers were brought about by the Project. The
environmental mitigation measures provided by the Contractor were generally acceptable
apart from some minor deficiencies, which were rectified timely by the Contractor. In
conclusion, the Project was environmentally acceptable.
5.3 Recommendations
5.3.1 With the success of the overall EM&A programme, the deterioration of the environment
caused by the Project was cost-effectively identified and necessary prompt effective
mitigation measures were implemented to avoid any unacceptable impacts.
5.3.2 The EM&A programme was found to be effective in monitoring impacts related to the
Project. The findings of the environmental monitoring program suggest that no adverse
impacts on sensitive receivers were brought about by the Project. In conclusion, the Project
was environmentally acceptable. No particular recommendation was advised for the
improvement of the programme.