1.1.1
Water Supplies
Department (WSD) is the
Proponent of the Works
Contract 7/WSD/21 – Construction of Siu Ho Wan Water Treatment Works
Extension and Siu Ho Wan Raw Water Booster Pumping Station (hereinafter named as the “Works Contract”). The Project works predicted by WSD will be
undertaken about 34 months. Layout plan of the Project is shown in Appendix A.
1.1.2
According to the Environmental
Impact Assessment Ordinance (EIAO), the proposed Siu Ho Wan Water Treatment Works
Extension is a Designated Project under Schedule 2, which shall be implemented
under the Environmental Permit EP-207/2005/A (hereinafter called the “EP”). Besides, the works for Siu Ho Wan
Raw Water Booster Pumping Station is a non-designated project which mentioned
in Section 1.10 of Environmental Monitoring and Audit (EM&A) Manual.
1.1.3
The Works Contract construction
activities mainly include:-
a.
Extension
of the existing Siu Ho Wan WTW within the existing Siu Ho Wan WTW compound from
a capacity of 150,000 m3/day to 300,000 m3/day
b.
Uprating
of the treated/fresh water pumping capacity in the existing Siu Ho Wan Raw
Water and Fresh Water Pumping Station within the existing Siu Ho Wan WTW
compound from a capacity of 150,000 m3/day to 300,000 m3/day
c.
Construction
of the proposed Siu Ho Wan Raw Water Booster Pumping Station and the laying of
the associated water mains
1.1.4
On 20 March 2022, China Road and Bridge Corporation
(hereinafter called the “Main Contractor”)
awarded the Works Contracts 7/WSD/21. According to EM&A Manual, only air
quality monitoring is required to be conducted which related to the works area
under Contracts 7/WSD/21
during construction phase of the SHW WTW Extension. Moreover, site inspection and audit is required
under the EM&A program to ensure the recommended environmental mitigation
measures are implemented properly and effective.
1.1.5
The Main-Contractor appointed Action-United Environmental Services &
Consulting (AUES) as the Environmental Team of the Project (hereinafter
referred as the “ET”) to implement air quality (baseline and impact) monitoring
as well as associated duties in accordance with the EM&A Manual
stipulation.
1.1.6
Some design changes of the
Project have been identified after the EIA stage for betterment in the design
development. Some of these changes requires
supplementary environmental review to address their likely environmental
impacts and to identify any additional mitigation measures required for
compliance with the EIAO. Supplementary environmental review has been performed
for the changes and the review results are presented in the “Review Report on
Environmental Impact Assessment (Review Report on EIA)” prepared under
“Agreement No. CE 82/2017 (WS)”. Having reviewed the Review Report on EIA, no
changes to the environmental monitoring requirement in the EM&A Manual are
proposed for the work of SHW WTW Extension.
1.1.7
According to the approved
EM&A Manual, only air quality is required to be monitored during the
construction phase of the Project. As part of the EM&A program, baseline
monitoring is required to determine the ambient environmental conditions. Pursuant
to the EM&A Manual, baseline environmental monitoring is required to be
conducted prior to commencement of the construction works under the Project.
Baseline air quality monitoring was conducted from 8 to 21 April 2022.
During the baseline monitoring period, no major construction activities
under the Project was observed.
1.1.8
As advised by the Contractor, the major construction works under Works Contract was commenced
on 24 May 2022. This is the 27th Monthly
EM&A Report presenting monitoring results and inspection finding for the Project for the
reporting period from 1 to 31 July 2024.
1.2.1
The Monthly EM&A Report is structured into the
following sections:-
Section 1 Introduction
Section 2 Project
Organization and Construction Progress
Section 3 Summary
of Impact Monitoring Requirements
Section 4 Air
Quality Monitoring
Section 5 Waste
Management
Section 6 Site
Inspections
Section 7 Environmental
Complaints and Non-Compliances
Section 8 Implementation
Status of Mitigation Measures
Section 9 Conclusions
and Recommendations
2.1.1
The project organization is shown in Appendix B. The roles and responsibilities of the
various parties involved in the EM&A process and
the organizational structure of the organizations responsible for implementing
the EM&A programme are outlined below.
Water Supplies Department (WSD)
2.1.2
WSD is the Project Proponent and the Permit Holder of the EP of
the development of the Project and will assume overall responsibility for the
project. An Independent Environmental Checker (IEC) shall be employed by WSD to
audit the results of the EM&A works carried out by the ET.
Environmental Protection Department (EPD)
2.1.3
EPD is the statutory enforcement body for environmental protection
matters in Hong Kong.
Project Manager’s Delegate
(PMD)
2.1.4
The PMD is responsible for overseeing the
construction works and for ensuring that the works are undertaken by the Contractor in accordance with the
specification and contract requirements. The duties and responsibilities of the
PDM with respect to EM&A are:
Ÿ Supervise
the Contractor’s activities and
ensure that the requirements in the EM&A Manual are fully complied with;
Ÿ Inform the
Contractor when action is required to
reduce impacts in accordance with the Event and
Action Plans;
Ÿ Comply with the agreed Event Contingency Plan in the event of any
exceedance.
The Contractor
2.1.5
The
Main Contractor is responsible
perform construction works and for ensuring that the works are undertaken
compliance with the specification and contract requirements. The duties and
responsibilities of the Main Contractor
with respect to EM&A are:
Ÿ
Employ an ET to undertake monitoring,
laboratory analysis and reporting of environmental monitoring and audit;
Ÿ
Provide information / advice to the ET
regarding works activities which may contribute, or be continuing to the
generation of adverse environmental conditions;
Ÿ
Submit proposals on mitigation measures in
case of exceedances of Action and Limit levels in accordance with the Event and
Action Plans;
Ÿ
Implement measures to reduce impact whenever
Action and Limit levels are exceeded;
Ÿ
Implement the corrective actions instructed
by PMD;
Ÿ
Accompany joint site audit undertaken by the
ET; and
Ÿ
Adhere to the procedures for carrying out
complaint investigation.
Environmental Team (ET)
2.1.6
The ET
is responsible perform implementation EM&A programmes
of the Contract Works as stipulated in the Updated EM&A Manual ensure the
works are fully compliance with environmental regulations. The duties and
responsibilities of the ET with respect to EM&A are:
Ÿ
Set up all the required environmental
monitoring stations;
Ÿ
Monitor various environmental parameters as
required in the EM&A Manual;
Ÿ
Analyze the EM&A data and review the
success of EM&A programme to cost effectively
confirm the adequacy of mitigation measures implemented and the validity of the
EIA predictions and to identify any adverse environmental impacts arising;
Ÿ
Carry out site inspection to investigate and
audit the Contractor’s site practice,
equipment and work methodologies with respect to pollution control and
environmental mitigation, and take proactive actions to pre-empt problems;
Ÿ
Audit and prepare audit reports on the
environmental monitoring data and site environmental conditions;
Ÿ
Report on the EM&A results to the IEC, Contractor, the PMD and EPD or its delegated representative;
Ÿ
Recommend suitable mitigation measures to the
Contractor in the case of exceedance
of Action and Limit levels in accordance with the Event and Action Plans;
Ÿ
Undertake regular and ad-hoc on-site audits /
inspections and report to the Contractor
and the ER of any potential non-compliance; and
Ÿ
Follow up and close out non-compliance
actions.
Independent Environmental
Checker (IEC)
2.1.7
The
duties and responsibilities of IEC with respect to EM&A are:
Ÿ
Review the EM&A works performed by the ET
(at not less than monthly intervals);
Ÿ
Audit the monitoring activities and results
(at not less than monthly intervals);
Ÿ
Report the audit results to the PMD and EPD in parallel;
Ÿ
Review the EM&A reports (monthly summary
reports) submitted by the ET;
Ÿ
Review the proposal on mitigation measures
submitted by the Contractor in
accordance with the Event and Action Plans;
Ÿ
Check the mitigation measures submitted by
the Contractor in accordance with the
Event and Action Plans;
Ÿ
Check the mitigation measures that have been
recommended in the EIA and this Manual, and ensure they are properly
implemented in a timely manner, when necessary;
Ÿ
Report the findings of site inspections and
other environmental performance reviews to PMD
and EPD;
Ÿ
Coordinate the monitoring and auditing works
for all the on-going contracts in the area in order to identify possible sources
/ causes of exceedances and recommend suitable remedial actions where
appropriate; and
Ÿ
Coordinate the assessment and response to
complaints / enquires from locals, green groups, district councils or the
public at large.
2.2.1
The major construction activities conducted under the Contract in the Reporting Period are listed below. The 3-month rolling construction programme is shown in Appendix C.
Ÿ
ABWF works were in
progress at portion BPS-1
Ÿ
Concreting for
footing at A-G/1-3 was completed at portion WTW-1
Ÿ
Concreting for footing at G-M/1-3 was completed at portion WTW-1
Ÿ
Rebar fixing for wall at A-B/1-6 was in progress at portion WTW-1
Ÿ
Construction of lower slab at CLP transformer room was completed at
portion WTW-2
Ÿ
Installation of DfMA unit was in progress at
portion WTW-2
Ÿ
Laying of DN1200 and associated pipe connection and painting works for
connection with Shek Pik Reservior near existing Dewatering Building was in progress
at portion WTW-7
Ÿ
Installation of lime saturators at existing Chemical Building at WTW-4
2.3
Summary of Environmental permits and Licences
2.3.1
Summary of
the relevant permits, licences, and/or notifications on environmental protection for
the Project are presented in Table 2-1.
Table 2-1 Status of
Environmental Licences
and Permits of the Contract
|
Item
|
Description
|
Licence/Permit Status
|
|
Reference No./ License No./ Account No.
|
Approval Date
|
Expiry Date
|
Status
|
|
1
|
Air
Pollution
Control (Construction Dust) Regulation
|
Ref: 477913
|
23 Mar 2022
|
N/A
|
Valid
|
|
2
|
Waste
Disposal Regulation – Billing Account for Disposal of Construction Waste
|
EPD Ref. No: RS02509
Acc. No.: 7043631
|
08 Apr 2022
|
N/A
|
Valid
|
|
3
|
Chemical
Waste Producer Registration
|
5213-961-C4701-01
|
31
May 2023
|
N/A
|
Valid
|
|
4
|
Water
Pollution Control Ordinance – Discharge Licence
|
WT00041885-2022
|
8
Sep 2022
|
30
Sep 2027
|
Valid
|
|
5
|
Construction Noise Permit
|
GW-RS0374-24
|
1 May 2024
|
30 Sep 2024
|
Valid
|
3.1.1
Only
air quality monitoring is required to carry out related to Works contracts 7/WSD/21
during the construction phase to ensure the dust mitigation measures and performance
properly implementation.
3.1.2
The
other environmental monitoring for Works Area of Pui
O was related to other Works Contracts and will be implemented by other
appointed ET.
3.1.3
According
to the Review Report on EIA, no changes to the environmental monitoring
requirement in the EM&A Manual are proposed for the work of SHW WTW
Extension. Air quality monitoring work will be implemented according to the
EM&A Manual.
3.2.1
The
EM&A program of construction phase monitoring shall cover the following
environmental issues:
Ÿ
Air quality;
3.2.2
A
summary of impact monitoring parameters is presented in Table 3-1:
Table 3-1 Summary
of Monitoring Parameters
|
Environmental
Issue
|
Parameters
|
|
Air
Quality
|
Ÿ 1-hour TSP by Real-Time
Portable Dust Meter( as required in case of complaints); and
Ÿ 24-hour TSP by High Volume
Air Sampler.
|
3.3.1
According
to the Review Report on EIA, air quality monitoring work should be implemented
according to the EM&A Manual. As stated in Section 4 of EM&A Manual,
there was only one air quality monitoring station designated under SHW WTW
Extension. The air quality
monitoring locations is listed in Table 3-2.
Table 3-2 Designated
Air Quality Monitoring Stations
|
Monitoring Station Identification
No
|
Location
|
|
SHWAB
|
Siu Ho Wan WTW Administration
Building
|
3.4.1
The requirements of impact monitoring are stipulated in Sections 2.1.9 of the approved EM&A
Manual and presented as follows.
Air Quality Monitoring
3.4.2
Frequency of impact air quality monitoring is as follows:
|
Ÿ 1-hour TSP
|
3 times every six days (as required in
case of complaints)
|
|
Ÿ 24-hour TSP
|
Once every 6 days during course of
works.
|
Air Quality Monitoring
3.5.1
The 24-hour and 1-hour TSP levels shall be measured by following
the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.
If the ET proposes to use a direct reading dust meter to measure 1-hour
TSP levels, it shall submit sufficient information to the IEC to approve.
3.5.2
The filter paper of 24-hour TSP measurement shall be determined
by HOKLAS accredited laboratory.
3.5.3
All equipment to be used for air quality monitoring are
listed in below table.
Table 3-3 Air
Quality Monitoring Equipment
|
Equipment
|
Model
|
|
24-Hr TSP
|
|
High Volume Air Sampler
|
TISCH High Volume Air Sampler, HVS Model
TE-5170*
|
|
Calibration Kit
|
TISCH Model TE-5025A*
|
|
1-Hour TSP
|
|
Portable Dust Meter
|
Sibata LD-3B Laser Dust monitor
Particle Mass Profiler & Counter / SidePak™
Personal Aerosol Monitor AM510
|
* Instrument was used in the
Reporting Period and the calibration certificate could be referred in Appendix E.
1-hour TSP
3.6.1
Operation of the 1-hour TSP meter will follow manufacturer’s
Operation and Service Manual.
3.6.2
The 1-hour TSP monitor, brand named “Sibata
LD-3B Laser Dust monitor Particle Mass Profiler & Counter” is a portable,
battery-operated laser photometer. The 1-hour TSP meter provides a real time
1-hour TSP measurement based on 900 light scattering. The 1-hour TSP monitor
consists of the following:
a.
A pump
to draw sample aerosol through the optic chamber where TSP is measured;
b.
A
sheath air system to isolate the aerosol in the chamber to keep the optics
clean for maximum reliability; and
c.
A
built-in data logger compatible with Windows based program to facilitate data
collection, analysis and reporting.
3.6.3
The 1-hour TSP meter to be used will be within the valid period,
calibrated by the manufacturer prior to purchasing. Span check and BG of the
instrument will be performed before each monitoring event. A valid calibration
certificate is attached in Appendix E.
24-hour TSP
3.6.4
The equipment used for 24-hour TSP measurement is the High Volume
Sampler (hereinafter the “HVS”) brand named TISCH, Model TE-5170 TSP High
Volume Air Sampler, which complied with EPA
Code of Federal Regulation, Appendix B to Part 50. The HVS consists of the
following:
a.
An
anodized aluminum shelter;
b.
A
8”x10” stainless steel filter holder;
c.
A
blower motor assembly;
d.
A
continuous flow/pressure recorder;
e.
A
motor speed-voltage control/elapsed time indicator;
f.
A 7-day
mechanical timer, and
g.
A
power supply of 220v/50 Hz
3.6.5
For HVS for 24-hour TSP monitoring, the HVS is mounted in a
metallic cage with a top for protection and also it is sat on the existing
ground or the roof of building. The
flow rate of the HVS between 0.6m3/min and 1.7m3/min will
be properly set in accordance with the manufacturer’s instruction to within the
range recommended in EPA Code of Federal
Regulation, Appendix B to Part 50.
Glass Fiber Filter 8" x 10" of TE-653 will be used for 24-Hour
TSP monitoring and would be supplied by laboratory. The general procedures of sampling are
described as below:-
Ÿ A horizontal platform with
appropriate support to secure the samples against gusty wind should be
provided;
Ÿ Installed with elapsed-time
meter with ± 2 minutes accuracy for 24 hours operation;
Ÿ Equipped with a timing/control
device with ± 5 minutes accuracy for 24 hours operation;
Ÿ With flow control accuracy for ± 2.5% deviation over
24-hour sampling period;
Ÿ No two samplers should be
placed less than 2 meters apart;
Ÿ The distance between the
sampler and an obstacle, such as building, must be at least twice the height
that the obstacle protrudes above the sample;
Ÿ A minimum of 2 meters of
separation from any supporting structure, measured horizontally is required;
Ÿ Before placing any filter media
at the HVS, the power supply will be checked to ensure the sampler work
properly;
Ÿ The filter paper will be set to
align on the screen of HVS to ensure that the gasket formed an air tight seal
on the outer edges of the filter.
Then filter holder frame will be tightened to the filter hold with swing
bolts. The holding pressure should
be sufficient to avoid air leakage at the edge.
Ÿ The mechanical timer will be
set for a sampling period of 24 hours (00:00 mid-night to 00:00 mid-night next
day). Information will be recorded
on the field data sheet, which would be included the sampling data, starting
time, the weather condition at current and the filter paper ID with the initial
weight;
Ÿ After sampling, the filter
paper will be collected and transfer from the filter holder of the HVS to a
sealed envelope and sent to a local HOKLAS accredited laboratory for
quantifying.
3.6.6
All the sampled 24-hour TSP filters will be kept in normal air
conditioned room conditions, i.e. 70% HR (Relative Humidity) and 25oC,
for six months prior to disposal.
3.6.7
The HVS used for 24-hour TSP monitoring will be calibrated before
the commencement for sampling, and after in two months interval with the
manufacturer’s instruction using the NIST-certified standard calibrator (Tisch Calibration Kit Model TE-5025A) to establish a
relationship between the follow recorder meter reading in cfm (cubic feet per
minute) and the standard flow rate, Qstd, in m3/min. Motor brushes of HVS will be regularly
replaced of about five hundred hours per time. Valid certificates of the
calibration kit and HVS are attached in Appendix E.
3.7.1
The baseline results form the basis for determining the
environmental acceptance criteria for the impact monitoring. According to the approved Environmental
Monitoring and Audit Manual, the air quality criteria were set up, namely
Action and Limit levels are listed in Tables 3-4.
Table 3-4 Action
and Limit Levels of Air Quality
|
Monitoring Station
|
Action Level (mg /m3)
|
Limit Level (mg/m3)
|
|
1-hour TSP
|
24-hour TSP
|
1-hour TSP
|
24-hour TSP
|
|
SHWAB
|
291
|
170
|
500
|
260
|
3.8.1
The meteorological information including wind direction, wind
speed, humidity, rainfall, air pressure and temperature is extracted from the Chek Lap Kok Station. Meteorological data are attached in Appendix J.
3.9.1
All monitoring data were handled by the ET’s in-house data
recording and management system.
3.9.2
The monitoring data recorded in the equipment were downloaded
directly from the equipment at each monitoring day or after completion of baseline
measurement. The downloaded
monitoring data were input into a computerized database properly maintained by
the ET. The laboratory results were
input directly into the computerized database and checked by personnel other
than those who input the data.
3.9.3
For monitoring parameters that require laboratory analysis, the
local laboratory shall follow the QA/QC requirements as set out under the
HOKLAS scheme for the relevant laboratory tests.
4
Air Quality Monitoring
4.1.1
The air quality monitoring schedule is presented in Appendix G and the monitoring results are summarised in the following
sub-sections.
4.1.2
In the reporting Period, no air quality complaint was received,
thus no 1-hour TSP monitoring required to conduct
according to Section 2.19 of the approved EM&A Manual.
4.2.1
In the Reporting Period, a total of 5 events 24-hour TSP monitoring were carried out and the monitoring
results are summarized in Table 4-1. The
detailed 24-hour monitoring data are presented in Appendix H and the relevant graphical plots are shown in Appendix I.
Table 4-1 Summary of 24-hour TSP Monitoring Result – SHWAB
|
24-hour TSP (mg/m3)
|
|
Date
|
Meas. Result
|
|
5-Jul-24
|
42
|
|
11-Jul-24
|
26
|
|
17-Jul-24
|
37
|
|
23-Jul-24
|
58
|
|
29-Jul-24
|
22
|
|
Average
(Range)
|
37
(22 –
58)
|
4.2.2
As shown in Tables 4-1, all the 24-hour TSP
monitoring results were below the Action/Limit Levels. No Notification of Exceedance (NOE) was
issued in this Reporting Period.
4.2.3
The meteorological data during the impact monitoring days are
summarized in Appendix J.
5.1.1
Waste management was carried out in accordance with the Waste
Management Section in the Environmental Management Plan for the Contract.
5.2.1
All types of waste arising from the construction works are broadly classified into the following:
l Insert
construction and demolition (C&D) material; and
l C&D
waste.
5.2.2
The quantities of waste for disposal in this Reporting Month under
the Contract are summarised in Tables 5-1 and 5-2 and the Waste Flow Table as shown in Appendix K. Whenever possible,
materials were reused on-site as far as practicable.
Table 5-1 Summary
of Quantities of Inert C&D Materials for the Contract
|
Type
|
Quantity in Reporting Month
|
Disposal / Dumping
Ground
|
|
Reused in this Contract (Inert) (in T)
|
0
|
NA
|
|
Reused in other Contracts/ Projects
(Inert) (in T)
|
0
|
NA
|
|
Disposal as Public Fill (Inert) (in T)
|
197.710
|
TM 38
|
Table 5-2 Summary
of Quantities of C&D Wastes for the Contract
|
Type
|
Quantity in Reporting Month
|
Disposal / Dumping
Ground
|
|
|
25.3132
|
NA
|
|
Recycled Paper / Cardboard
Packing (‘000kg)
|
0.2215
|
NA
|
|
Recycled Plastic (‘000kg)
|
0.0084
|
NA
|
|
Chemical Wastes (‘000kg)
|
0
|
NA
|
|
General Refuses (in T)
|
41.220
|
NENT
|
6.1.1
According to the EM&A Manual, the programme of environmental site inspection shall be formulation by ET
Leader. Weekly environmental site
inspections were carried out to confirm the environmental performance.
6.2
Findings / Deficiencies During the Reporting Month
6.2.1
In the Reporting Month, joint site inspections to
evaluate the site environmental performance were carried out by the representatives
of the PMD, ET and the Contractor on
2, 9, 16, 23 and 30 July 2024. Joint site inspection with PMD, ET, IEC and the Contractor was carried out on 16 July
2024. No
non-compliance was recorded.
6.2.2
The findings / deficiencies observed during the weekly site
inspections are listed in Table 6-1.
Table 6-1 Site
Observations for the Contract
|
Date
|
Findings / Deficiencies
|
Follow-Up Status
|
|
2 July 2024
|
Ÿ The Contractor should
display the NRMM label clearly for excavator. (WT-W7)
Ÿ The Contractor should
cover the gully properly to prevent muddy water and sediment run into.
(WT-W7)
Ÿ The Contractor was
reminded to remove stagnant water regularly after rainy days.
Ÿ The Contractor was
reminded to dispose waste properly to enhance house-keeping.
|
Ÿ The NRMM label was
display clearly.
Ÿ The gully was covered
with board to prevent muddy water and sediment.
Ÿ Reminder only.
Ÿ Reminder only.
|
|
9 July 2024
|
Ÿ The Contractor should
spray water regularly at haul road to reduce dust impact. (BPS)
|
Ÿ The Contractor was
spray water at haul road regularly.
|
|
16 July 2024
|
Ÿ The Contractor was
reminded to dispose waste properly to enhance house-keeping.
|
Ÿ Reminder only.
|
|
23 July 2024
|
Ÿ The Contractor was
reminded to remove stagnant water regularly to prevent mosquito breeding.
Ÿ The Contractor was
reminded to dispose waste properly to enhance house-keeping.
|
Ÿ Reminder only.
Ÿ Reminder only.
|
|
30 July 2024
|
Ÿ The Contractor should remove or place
chemical containers inside drip tray to prevent leakage. (WTB)
Ÿ The Contractor was reminded to remove
stagnant water regularly after rainy day.
Ÿ The Contractor was reminded to dispose
waste properly to enhance house-keeping.
|
Ÿ The chemical container was removed.
Ÿ Reminder only.
Ÿ Reminder only.
|
7.1
Environmental Complaints, Summons and Prosecutions
7.1.1
There was no environmental complaint, prosecution or notification of summons received in
the Reporting Month.
7.1.2
The statistical summary table of the environmental complaints, summons and prosecution are presented in Tables 7-1, 7-2 and 7-3. Detailed complaint log for the Contract
is presented in Appendix L.
Table 7-1 Statistical Summary of Environmental Complaints
|
Reporting Month
|
Environmental Complaint Statistics
|
|
Frequency
|
Cumulative
|
Project related complaint
|
|
24
May 2022 to 30
June 2024
|
0
|
0
|
0
|
|
1 to 31 July 2024
|
0
|
0
|
0
|
Table 7-2 Statistical Summary of Environmental Summons
|
Reporting Month
|
Environmental Summons Statistics
|
|
Frequency
|
Cumulative
|
Project related summons
|
|
24
May 2022 to 30
June 2024
|
0
|
0
|
0
|
|
1 to 31 July 2024
|
0
|
0
|
0
|
Table 7-3 Statistical
Summary of Environmental Prosecution
|
Reporting Month
|
Environmental Prosecution Statistics
|
|
Frequency
|
Cumulative
|
Project related prosecution
|
|
24
May 2022 to 30
June 2024
|
0
|
0
|
0
|
|
1 to 31 July 2024
|
0
|
0
|
0
|
8.1.1
The environmental mitigation measures recommended in the ISEMM in
the EM&A Manual covered the issues of dust, noise, water, waste, land contamination and ecology and they are summarised and presented in Appendix M.
8.1.2
The Contract works under the Project shall be implementing the required
environmental mitigation measures according to the EM&A Manual as subject to the site conditions. Environmental mitigation measures
generally implemented by the Contract and the implementation status are shown in Appendix M.
8.2.1
According to the information provided by the Contractor, the major
construction activities under the Contract in the coming
month are listed below:
Ÿ
Construction of base
slab, walls, and columns for WTB
Ÿ
Construction of base
slab, walls, and columns for OLB superstructure
Ÿ
Excavation, pipelaying, pipe connections and backfilling works for
DN1200 watermain, DN100 and DN200 sludge pipes
Ÿ
Construction of R.C.
pipe trough at portion BPS-3
Ÿ
Pipelaying works at portion BPS-3
Ÿ
Pipelaying works at access road of portion WTW-7
Ÿ
E&M modification
works at existing Chemical Building
Ÿ
Installation of lime
saturators at existing Chemical Building
Ÿ
Installation of earthing system at WTB superstructure
Ÿ
Installation of
drainage pipes and concealed conduits at OL&B
Ÿ
Replacement of light
fittings at existing Sludge Dewatering House
Ÿ
ABWF works for BPS
superstructure at portion BPS-1
Ÿ
Construction of
underground utilities at external areas of portion BPS-1
Ÿ
Trench excavation
and pipe laying works of DN1800 and DN 1600 raw watermain
at BPS-1
8.3.1
Special attention should be paid on the potential construction dust impact
since most of the construction sites are adjacent to Siu Ho Wan Sewage
Treatment Works. The Contractor
should fully implement the construction dust mitigation measures as appropriately.
8.3.2
Due to
wet season has approached, the Contractor was reminded that all effluent discharge shall
fulfill the requirement of Discharge Licence under
the Water Pollution Control Ordinance.
8.3.3
All other mitigation measures recommended in the Implementation
Schedule for Environmental Mitigation Measures of the EM&A Manual should be
properly implemented and maintained as far as practicable.
