Executive Summary
The Hung Shui Kiu Effluent
Polishing Plant (HSKEPP) (hereinafter referred to as “the Project”) is to
provide sewage treatment to the sewage collected from the Hung Shiu Kiu / Ha
Tsuen New Development Area (HSK/HT NDA) and other developments in the North West
New Territories (NWNT), and to subsequently dispose the treated effluent.
The Environmental Impact Assessment (EIA) Report and
its Environmental Monitoring and Audit (EM&A) Manual (Register No.
AEIAR-240/2022) for HSKEPP was approved on 19 October 2022, with an
Environmental Permit (EP) granted on 19 October 2022 (EP No. EP-608/2022) under
the Environmental Impact Assessment Ordinance (EIAO).
The construction was commenced on 6 September 2024.
This is the 1st EM&A report documents the findings of EM&A
works conducted during the period from 6 to 30 September 2024.
EM&A Activities Summary
A summary of the EM&A activities in this reporting
month is listed below:
|
EM&A Activities
|
Date
|
|
Air Quality Monitoring
|
7, 13, 19, 25 and 30 September 2024
|
|
Water Quality Monitoring
|
7, 9, 11, 13, 16, 19, 21, 23, 25, 27 and
30 September 2024
|
|
Environmental Site Inspection
|
12, 16 and 26 September 2024
|
Breaches of Action and Limit Levels for Air Quality
No exceedance of the Action / Limit Level of 1-hour Total
Suspended Particulates (TSP) was recorded in the reporting month. Details are
provided in Appendix F.
Breaches of Action and Limit Levels for Water Quality
No exceedance of the Action / Limit Level of water
quality monitoring was recorded in the reporting month. Details are provided in
Appendix I.
Complaint, Notification of Summons and Successful
Prosecution
No environmental complaint, notification of summons
and successful prosecution were received in the reporting month.
Reporting Changes
There was no reporting change in the reporting month.
Future Key Issues
Key issues to be considered in the next three months
included the following.
|
Site
|
Construction Activities
|
|
Contract No. DC/2023/15
Site Formation Works for Hung Shui Kiu
Effluent Polishing Plant Phase 1
|
- Construction
of Hoarding
- Ground
Investigation Works
- Tree
Felling Works
- Demolition
Works
|
Potential environmental impacts arising from the above
construction activities are mainly associated with construction dust, water
quality and waste management.
WSP (Asia) Limited (WSP) was
appointed by Drainage Services Department (DSD) as the Environmental Team (ET)
to undertake the Environmental Monitoring and Audit (EM&A) programme during
construction phase of the
Hung Shui Kiu Effluent Polishing Plant (HSKEPP) (hereinafter referred to as “the
Project”).
1.1.1 The Environmental Monitoring and Audit (EM&A) programme for the
Project commenced on 6 September 2024. This is the 1st EM&A Report for the Project which summarises the impact
monitoring results and audit findings for the Project during the period from 6 to 30 September 2024.
1.2.1
This monthly EM&A
Report is organized as follows:
(a)
Section
1: Introduction
(b)
Section
2: Project Information
(c)
Section
3: Environmental Monitoring Requirement
(d)
Section
4: Implementation Status of Environmental Mitigation Measures
(e)
Section
5: Monitoring Results
(f)
Section
6: Environmental Site Inspection and Audit
(g)
Section
7: Environmental Non-conformance
(h)
Section
8: Future Key Issues
(i)
Section
9: Conclusions and Recommendations
2.1.1 The Hung Shui Kiu Effluent Polishing Plant (HSKEPP) (the Project)
which is located in the north-western side of the Hung Shiu Kiu / Ha Tsuen New
Development Area (HSK/HT NDA). It is designed to provide reliable, adequate and
quality sewage treatment and sewage effluent disposal for the sewage collected
from the new developments within the HSK/HT NDA and other developments on the
North West New Territories (NWNT).
2.1.2 An Environmental Impact Assessment (EIA) study for the Project was
conducted in accordance with EIA Study Brief No. ESB- 312/2019. The EIA Report
and Environmental Monitoring and Audit (EM&A) Manual (Register No. AEIAR – 240/2022)
were approved on 19 October 2022 under the Environmental Impact Assessment Ordinance (EIAO), with an
Environmental Permit (EP) granted on 19 October 2022 (EP No. EP-608/2022).
2.1.3 According to the approved EM&A Manual of HSKEPP, the EM&A
monitoring for the Project includes air quality monitoring and water quality monitoring. Baseline dust and water
quality monitoring for HSKEPP was carried out within 24 June 2024 and 20 July
2024.
2.2.1 The key elements of this Project comprise below:
(a)
Demolition
of existing structures and buildings within San Wai Preliminary Treatment Works
(SWPTW) for construction of HSKEPP facilities;
(b)
Construction of a sewage treatment plant with a
maximum capacity of Average Dry Weather Flow (ADWF) up to 90,000 m3/day;
(c)
Construction of sludge treatment facilities for
treating sludge generated from Hung Shui Kiu (HSK) Effluent Polishing Plant
(EPP) and additional sludge generated from the San Wai Sewage Treatment Works
(STW) and other nearby STWs;
(d)
Construction of facilities for receiving and
co-digesting pre-treated food or organic wastes;
(e)
Construction of effluent discharge pipe
connecting to the existing discharge tunnel of San Wai STW; and
(f)
Associated
ancillary works.
2.2.2 The layout plan of the Project is shown in Figure 2.1.
2.3.1 The major construction activities undertaken in the reporting month
are summarised below:
Table 2.1 Summary
of Major Construction Activities in the Reporting Period
|
Site
|
Construction Activities
|
|
Contract No. DC/2023/15
Site Formation Works for Hung Shui Kiu
Effluent Polishing Plant Phase 1
|
-
Site Clearance
-
Pre-conditional Surveying
-
Ground Investigation Works
|
2.3.2 The tentative construction programme is presented in Appendix A.
2.4.1 The project organization structure is shown in Appendix B.
The key personnel contact names and numbers for the Project are summarized in Table 2.2.
Table 2.2 Contact
Information of Key Personnel
|
Party
|
Role
|
Position
|
Name
|
Telephone
|
|
DSD
|
Project
Proponent
|
Engr/6
(Harbour Area Treatment Scheme)
|
Mr.
Gabriel Lau
|
2159
3410
|
|
AECOM
|
Engineer’s
Representative
|
Associate
|
Ms.
Yanning Zhang
|
5315
1068
|
|
ERM
|
Independent
Environmental Checker (IEC)
|
Independent
Environmental Checker
|
Ms.
Mandy To
|
2271
3313
|
|
Adrian
Construction Limited
|
Contractor
|
Environmental
Officer
|
Mr.
Tak-chi Tsoi
|
9226
6337
|
|
WSP
|
Environmental
Team (ET)
|
ET
Leader
|
Mr.
Squall Lam
|
2579
8841
|
2.5.1 Relevant environmental licenses, permits and/or notifications on
environmental protection for the Project and valid in the reporting month are
summarized in Table 2.3.
Table 2.3 Status
of Environmental Licenses, Notification and Permits
|
Permit / License No. / Notification/ Reference No.
|
Valid Period
|
Status
|
Remarks
|
|
From
|
To
|
|
Environmental Permit
|
|
EP-608/2022
|
19 Oct 2022
|
-
|
Valid
|
EP-608/2022
|
|
Wastewater Discharge License
|
|
10009181
(Reference No.)
|
-
|
-
|
-
|
Date
of Application:
13th
September 2024
|
|
Chemical Waste Producer
Registration
|
|
5213-511-A3217-01
|
25
Jul 2024
|
-
|
Valid
|
-
|
|
Billing Account for Construction
Waste Disposal
|
|
7051624
|
29 Jul 2024
|
-
|
Valid
|
-
|
|
Notification Under Air Pollution
Control (Construction Dust) Regulation
|
|
-
|
-
|
-
|
-
|
Notification
has been submitted to EPD on 5 July 2024
|
Monitoring Requirements
3.1.1 In accordance with the approved EM&A Manual, 1-hour Total
Suspended Particulates (TSP) level at the designated air quality monitoring
station is required. Impact 1-hour TSP monitoring should be carried out for at
least three times in every six-days at the designated
monitoring stations. The Action and Limit Level of the
air quality monitoring is provided in Table 3.1.
Table 3.1 Action and Limit Levels for 1-hour TSP
|
ID
|
Location
|
Action Level
|
Limit Level
|
|
AM1
|
Tseung Kong Wai
|
263.0 mg/m3
|
500 mg/m3
|
|
AM2
|
Farm House
|
260.6 mg/m3
|
500 mg/m3
|
|
AM3
|
Planned Port Back-up, Storage and Workshop
|
263.4 mg/m3
|
500 mg/m3
|
Monitoring Equipment
3.1.2 1-hour TSP air quality monitoring was performed using portable
direct reading dust meter located at the designated monitoring stations.
Portable direct reading dust meters used for the monitoring were proven to IEC
to be capable of achieving comparable result as that of the dust meter and thus
were used for sampling. The portable direct reading dust meters meet all the
requirements of the EM&A Manual. Brand and model of the equipment is given
in Table 3.2. Their latest
calibration certificates of the portable direct reading dust meter are provided
in Appendix D.
Table 3.2 Air Quality Monitoring Equipment
|
Equipment
|
Brand and Model
|
|
Portable
direct reading dust meter
(1-hour TSP)
|
TSI
Handheld TSP Meter (Model No. AM520; S/N: 5201735004)
|
|
TSI
Handheld TSP Meter (Model No. AM520; S/N: 5201735006)
|
|
TSI
Handheld TSP Meter (Model No. AM520; S/N: 5202345003)
|
Monitoring Locations
3.1.3 The monitoring station for construction dust monitoring pertinent to
the Project has been identified based on the approved EM&A Manual for HSKEPP
of the Project. The location of the construction dust monitoring stations is
summarised in Table 3.3 and shown in Figure 3.1.
Table 3.3 Locations of Construction Dust Monitoring
Station
|
Monitoring Location ID(1)
|
Dust Monitoring Location
|
|
AM1
|
Tseung
Kong Wai
|
|
AM2
|
Farm
House
|
|
AM3
|
Planned
Port Back-up, Storage and Workshop
|
Note:
(1) 1-hour TSP impact
monitoring should be conducted at the monitoring stations when there are
Project-related major construction activities including site formation and
piling works being undertaken within a radius of 500m from the monitoring
stations.
Monitoring Methodology
3.1.4 The 1-hour TSP was sampled by drawing air into the portable dust
monitor where particular concentrations were measured instantaneously with an
in-built silicon detector sensing light scattered by the particulates in the
sampled air. Continuous TSP levels were indicated and logged by a built-in data
logger compatible with Windows based program to facilitate data collection,
analysis and reporting.
Field
Monitoring
3.1.5 The measuring procedures of the 1-hour dust meter was undertaken in
accordance with the Manufacturer’s Instruction Manual as follows:
(a) Power on the meter
(b) Check the data and time
(c) Check the battery and make
sure it is good enough to complete the sampling
(d) Select the “Calibration”
from the menu
(e) Plug in the zero
calibration filter to the meter
(f)
Select
the “Zero Cal” and run it
(g) Back to main menu and
select the “Run Mode/Manual Mode”
(h) Press “Enter” to start the
sampling
(i)
When
sampling is completed, press the “Enter” to stop the sampling
(j)
Back
to the main menu and select the “Data”
(k) Select the “Statistic” and
read back the last memory record
3.1.6 Adoption of the wind data from the existing automatic wind station,
i.e. Lau Fau Shan, operated by
Hong Kong Observatory (HKO) rather than setting up wind data monitoring
equipment is based on the following justifications:
·
Lau
Fan Shan automatic wind station is located in the vicinity of the designated
monitoring locations. This Automatic wind station (22°28'08", 113°59'01") is located at the north of the Project and the
anemometer is set up at 31m above mean sea level. It is clear of obstructions or turbulence caused
by the buildings;
·
This
automatic wind station was considered as the closest wind station to the
Project that could provide representative wind data in Hung Shui Kiu areas; and
·
Wind
data collected by HKO was considered as a reliable data source for the wind
data, it is widely used in many EM&A Projects (e.g. Expansion of Hong Kong
International Airport into a Three-runway System, Siu Ho Wan Station and Siu Ho
Wan Depot Replanning Works – Advance Construction Works). The dataset is more
accurate and reliable that could be downloaded periodically with real-timed
data logger.
3.1.7 The data collected from Lau Fau Shan was used to check the wind speed and wind direction. Details of the collected wind data
were presented in Appendix G.
Maintenance
and Calibration
3.1.8 The portable direct reading dust meter is calibrated every year
against high volume sampler (HVS) to check the validity and accuracy of the
results measured by direct reading method.
Data Management and data qa/qc
control
3.1.9 All monitoring data will be handled by the ET’s in-house data
recording and management system. The monitoring data recorded in the
equipment will be downloaded directly from the equipment at the end of each
monitoring day. The downloaded monitoring data will input into a
computerized database maintained by the ET. The laboratory results
will be input directly into the computerized database and checked by personnel
other than those who input the data.
3.1.10 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.
Monitoring Schedule for the
Reporting Month
3.1.11 The schedule for dust monitoring conducted in
September 2024 is provided in Appendix E.
Monitoring Requirements
3.2.1 In accordance with the approved EM&A Manual and EP, baseline
water quality monitoring was undertaken to establish the baseline water quality
levels at the designated monitoring stations. The stream water quality baseline monitoring was conducted 3 days per week for at least 4 weeks prior
to the commencement of the works, with
sampling/measurement at all designated monitoring stations including control
station as specified in Table 3.7.
3.2.2 Measurements at the C1 and M1 stations for
construction stage at were taken. Water depths, namely,
1m below water surface, mid-depth and 1m above sea/river bed, except where the water depth less that 6m, in which case the mid-depth station may be
omitted. Should the water depth be less than 3m, only the mid-depth station
will be monitored. The Action and Limit Level of
the water monitoring is provided in Table 3.4.
Table 3.4 Action and Limit Levels for Water Quality
|
Parameter
|
Station M1
|
|
Action Level
|
Limit Level
|
|
DO
in mg/L
|
3.8
|
3.7
|
|
Turbidity
in NTU
|
17.2
OR
120%
of upstream control station(s) at the same tide of the same day, whichever is
higher
|
17.7
OR
130% of upstream control station(s) at
the same tide of the same day, whichever is higher
|
|
SS
in mg/L
|
25
OR
120%
of upstream control station(s) at the same tide of the same day, whichever is
higher
|
26
OR
130% of upstream control station(s) at
the same tide of the same day, whichever is higher
|
Monitoring Parameters
3.2.3 Dissolved Oxygen (DO), Salinity, Temperature, pH, and
Turbidity should be monitored at designated water quality monitoring
stations. All parameters should be measured in-situ whereas suspended solids (SS) should be determined by the laboratory. DO should be
presented in mg/L and in % saturation.
3.2.4 Other relevant data should also be recorded, including monitoring
location / position, time, weather conditions and any special phenomena or work
underway at the construction site during the monitoring.
Monitoring equipment
3.2.5 Based on the approved EM&A Manual, the monitoring equipment in Table 3.5 were
used for the in-situ measurement of water quality. A copy of the calibration
certificates for the water quality monitoring equipment are provided in Appendix
D.
Table 3.5 Water Quality Monitoring Equipment
|
Equipment
|
Model
|
|
DO
and Temperature Meter, Salinity Meter, pH meter and Turbidimeter
|
YSI
ProDSS Multi Parameters
|
|
Serial
Number
|
1.
16H104233
2.
21K101469
3.
21G105356
|
|
Water
Depth Sensor
|
Xyorca
XY-453 (S/N: OA35000025)
|
|
Water
Sampler
|
1120-1180
Vertical AlphaTM Bottles
|
Monitoring methodology
Dissolved
Oxygen and Temperature Measuring Instrument
3.2.6 The instrument is a portable and weatherproof DO measuring
instrument complete with cable and sensor and use a DC power source. The
equipment is capable of measuring:
·
a
DO-level in the range of 0 - 20 mg/L and 0 - 200% saturation; and
·
a
temperature of 0 - 45 degree Celsius
3.2.7 It has a membrane electrode with automatic temperature compensation
complete with a cable. Sufficient
stocks of spare electrodes and cables should be available for replacement where
necessary. (For example, YSI model 59 meter, YSI 5739 probe, YSI 5795A
submersible stirrer with reel and cable or an approved similar instrument).
3.2.8 Salinity compensation was not built-in to the DO equipment, in-situ
salinity measured to calibrate the DO equipment prior to each DO measurement.
Turbidity
Measuring Instrument
3.2.9 Turbidity measured in-situ by the nephelometric method. The
instrument is portable and weatherproof using a DC power source complete with
cable, sensor and comprehensive operation manuals. It has a photoelectric
sensor capable of measuring turbidity between 0 - 1000 NTU (for example, Hach
model 2100P or an approved similar instrument). The cable is not less
than 25m in length. The meter calibrated in order to establish the
relationship between NTU units and the levels of suspended solids. The
turbidity measurement carried out on split water sample collected from the same
depths of suspended solids samples.
Sampler
3.2.10 A water sampler is required. It comprises a transparent PVC
cylinder, with a capacity of not less than 2 litres, which can be effectively
sealed with latex cups at both ends. The sampler have a positive latching
system to keep it open and prevent premature closure until released by a messenger
when the sampler is at the selected water depth (for example, Kahlsico Water
Sampler or an approved similar instrument).
Water Depth Detector
3.2.11 A portable, battery-operated echo sounder shall be used for the
determination of water depth at each designated monitoring station. This
unit can either be hand-held or affixed to the bottom of the work boat, if the
same vessel is to be used throughout the monitoring programme.
Salinity Measuring
Equipment
3.2.12 A portable salinometer capable of measuring salinity in the range of
0 - 40 parts per thousand (ppt) provided for measuring salinity of the water at
each monitoring location.
pH
Measuring Equipment
3.2.13 The instrument consists of a potentiometer, a glass electrode, a
reference electrode and a temperature-compensating device. It is readable
to 0.1 pH in a range of 0 to 14. Standard buffer solutions of at least pH 7 and
pH 10 used for calibration of the instrument before and after use.
Details of the method should comply with American Public Health Association (APHA), 19th Edition 4500-HTB.
Sample
Containers and Storage
3.2.14 Water samples for SS determination stored in high density polythene
bottles with no preservative added, packed in ice (cooled to 4°C without being frozen) and delivered to the laboratory and analysed
as soon as possible after collection. Sufficient volume of samples
collected to achieve the detection limit.
calibration
of in-situ instruments
3.2.15 All in-situ monitoring instruments checked, calibrated and certified
by a laboratory accredited under HOKLAS or any other international
accreditation scheme before use and subsequently re-calibrated at 3 monthly
intervals throughout all stages of the water quality monitoring.
Responses of sensors and electrodes checked with certified standard solutions
before each use. Wet bulb calibration for a DO meter carried out before
measurement at each monitoring location.
3.2.16 Sufficient stocks of spare parts shall be maintained for
replacements when necessary. Backup monitoring equipment shall also be made
available so that monitoring can proceed uninterrupted even when some equipment
is under maintenance, calibration, etc.
laboratory measurement/analysis
3.2.17 Analysis of SS levels shall be carried out in a HOKLAS or another
international accredited laboratory. Sufficient water samples (i.e. not
less than 2 litres) collected at the monitoring stations for carrying out the
laboratory determinations, with detection limit shown in Table 3.6. All
samples assigned a unique code and accompanied by Chain of Custody (COC)
sheets.
3.2.18 The SS determination work start within 24 hours after collection of
the water samples. The analyses follow the standard methods according to Table 3.6 and as
described in “American Public Health Association (APHA) Standard Methods for
the Examination of Water and Wastewater”, 19th edition, unless otherwise specified.
Table 3.6 Analytical Methods to be
applied to Water Quality Samples
|
Determinant
|
Standard Method
|
Detection Limit
|
|
Suspended Solids (mg/L)
|
APHA 2540 D
|
2 mg/L
|
3.2.19 For the purpose of QA/QC, all QA/QC results including blank, spike
recovery, number of duplicate samples per batch, etc. reported in accordance
with the requirement of HOKLAS or international accredited scheme. detection
limits and accuracy submitted to EPD for approval prior to the commencement of
monitoring programme. EPD may also request the laboratory to carry out
analysis of known standards provided by EPD for quality assurance.
3.2.20 Additional duplicate samples may require by EPD for inter laboratory
calibration. Remaining samples after analysis kept by the laboratory for 3
months in case repeat analysis is required. If in-house or non-standard
methods are proposed, details of the method verification may also require
submitting to EPD. In any circumstance, the sample testing has
comprehensive quality assurance and quality control programmes. The
laboratory prepares to demonstrate the programmes to EPD or his representatives
when requested.
Monitoring Locations
3.2.21 The monitoring station for water quality monitoring pertinent to the
Project has been identified based on the approved EM&A Manual for HSKEPP of
the Project. The location of the water quality monitoring stations is shown in Table 3.7 and shown in Figure 3.2.
Table 3.7 Locations of Water Quality Monitoring
Stations
|
Monitoring Station No.
|
Description
|
Coordinates
|
|
Easting
|
Northing
|
|
C1
|
Control Station at upstream location of
construction site for stream water quality monitoring during construction
phase
|
816278
|
834038
|
|
M1
|
Impact station at downstream
location of
construction site for stream water
quality
monitoring during construction
phase
|
816571
|
833970
|
Monitoring schedule for the
reporting month
3.2.22 The schedule for water quality monitoring conducted in September
2024 is provided in Appendix E.
4.1.1 The Contractor has implemented environmental mitigation measures and
requirements as stated in the EIA report, the EP and EM&A Manual. The
implementation status of the environmental mitigation measures during the
reporting period is summarized in Appendix C.
5.1.1 According to the approved EM&A manual, 1-hour TSP impact
monitoring should be conducted at the monitoring stations when Project-related
major construction activities being undertaken within a radius of 500m from the
monitoring stations.
5.1.2 The dust monitoring results for 1-hour TSP are summarised in Table 5.1 and the monitoring data with the graphical plots are
presented in Appendix F. The wind speed and wind direction data obtained
from the Lau Fan Shan Automatic
Wind Station operated by Hong Kong Observatory are presented in Appendix G.
Table 5.1 Summary of 1-hour TSP Monitoring Result in
the Reporting Period
|
ID
|
Average (mg/m3)
|
Range (mg/m3)
|
Action Level (mg/m3)
|
Limit Level (mg/m3)
|
|
AM1
|
71.0
|
4 – 155
|
263.0
|
500
|
|
AM2
|
61.0
|
18 – 168
|
260.6
|
500
|
|
AM3
|
64.8
|
29 – 182
|
263.4
|
500
|
5.1.3 No Action and Limit Level exceedance were recorded for 1-hour TSP
monitoring in the reporting month.
5.1.4 The event and action plan is annexed in Appendix H.
5.1.5 Major dust sources during the monitoring included construction dust,
nearby traffic emission and other nearby construction sites.
5.2.1 According to the approved EM&A manual, water
quality monitoring at designated locations are proposed to be carried out
during the construction phase to monitor any sub-standard water discharge into
the nearby water bodies from the HSKEPP.
5.2.2 The water quality monitoring results are summarized in Table 5.2. The monitoring data with graphical plots and their corresponding Action and Limit levels are provided in Appendix I.
Table 5.2 Summary of
Water Quality Monitoring Results in the Reporting Period
|
Parameters
|
Monitoring Station ID
|
|
M1
|
|
Dissolved Oxygen (mg/L)
|
4.26 – 6.44
|
|
Turbidity (NTU) (Depth-averaged)
|
3.16 – 17.78
|
|
Suspended Solid (mg/L) (Depth-averaged)
|
3 – 13
|
5.2.3 No Action and Limit Level exceedance were recorded for water quality monitoring in the reporting
month.
5.2.4 The event and action plan is annexed in Appendix H.
5.3.1 C&D materials and wastes sorting were carried out on site.
Receptacles were available for C&D wastes and general refuse collection.
5.3.2 As advised by the Contractor, no inert C&D materials were generated in the reporting month. No
inert C&D materials were reused in other projects or in the Contract in the
reporting month. No general
refuse and yard waste was disposed
of in the reporting month. No paper / cardboard packaging, plastic wastes and
metals were generated and disposed in the reporting period. The waste flow
table for different wastes in this reporting month is presented in Table 5.3 and the cumulative waste flow table is annexed in Appendix J.
Table 5.3 Quantities
of Waste Generated and Disposal Location in the Reporting Period
|
Sep 2024
|
Quantities
of Waste
|
|
Inert C&D Materials
(in ‘000 kg)
|
Chemical Waste
(in ‘000 L)
|
Non-inert
C&D Materials
|
|
Others,
e.g. General Refuse
(in ‘000
kg)
|
Recycled
Materials
|
|
Paper
(in ‘000
kg)
|
Plastics
(in ‘000
kg)
|
Metals
(in ‘000
kg)
|
Yard Waste
(in ‘000
kg)
|
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
|
Disposal
Locations
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
5.3.3 The Contractor is advised to properly maintain on site C&D
materials and wastes collection, sorting and recording system and maximize
reuse / recycle of C&D materials and wastes.
5.4.1 Site inspection was undertaken by the ET at least once every month during the
construction period (i.e. 26 September 2024). Site inspection
and implementation Schedule of Environmental Mitigation Measures is provided in
Appendix C. The
observations and recommendations made during the site inspections are presented
in Table 6.1.
6.1.1 Site inspections were carried out on a weekly basis to monitor the
implementation of proper environmental pollution control and mitigation
measures for the Project. A summary of the mitigation measures implementation
schedule is provided in Appendix C.
6.1.2 In the reporting month, 3 site inspections were carried out on 12, 16 and 26 September 2024. Joint inspections with the
IEC, ER, the Contractor and the ET were conducted on 26 September 2024. No
non-compliance was recorded during the site inspection. Details of observations
recorded during the site inspections are presented in Table 6.1.
Table 6.1 Observation
and Recommendations of Site Audit
|
Parameters
|
Date
|
Observations and Recommendations
|
Follow-up
|
|
Air
Quality
|
12 Sep 2024
|
The Contractor was reminded to install
wheel washing facility at the site exit. (Reminder)
|
--
|
|
26 Sep 2024
|
The Contractor is reminded to display to
NRMM label for drill rig properly. (Reminder)
|
--
|
|
Noise
|
N.
A.
|
Nil
|
Nil
|
|
Water
Quality
|
N.
A.
|
Nil
|
Nil
|
|
Waste/
Chemical Management
|
16 Sep 2024
|
It is observed that chemical containers
were found placed without drip tray. The Contractor is advised to provide
drip tray to all chemical containers on site. (Observation)
|
Chemical
containers have been placed with drip tray.
|
|
26 Sep 2024
|
It is observed that missing drip trays for chemical container and generators. The Contractor shall provide drip trays for generators
and chemical container. (Observation)
|
Chemical
container and generator have been put on drip trays.
|
|
Landscape
& Visual
|
N.
A.
|
Nil
|
Nil
|
|
Permits/
Licenses
|
N.
A.
|
Nil
|
Nil
|
6.1.3 All follow-up actions requested by Contractor's ET and IEC during
the site inspection were undertaken as reported by the Contractor and confirmed
in the following weekly site inspection conducted during the reporting period.
7.1.1 No Action and Limit Level exceedance was recorded for 1-hour TSP
monitoring in reporting month.
7.1.2 No Action and Limit Level exceedance was recorded for water quality monitoring in reporting month.
7.1.3 Summary of Exceedance is provided in Table 7.1.
Table 7.1 Summary of
Exceedance
|
Environmental Parameter
|
No. of Exceedance This Month
|
Exceedance due to Project Construction
|
|
Action Level
|
Limit Level
|
|
Air
Quality
(Construction Dust – 1-hour TSP)
|
0
|
0
|
0
|
|
Water
Quality
|
Dissolved
Oxygen
|
0
|
0
|
0
|
|
Turbidity
|
0
|
0
|
0
|
|
Suspended
Solid
|
0
|
0
|
0
|
|
Total
|
0
|
0
|
0
|
7.2.1 No environmental non-compliance was recorded in the reporting month.
Summary of Environmental Complaints, Summon and Successful Prosecution are
provided in Table 7.2 and Appendix
K respectively.
Table 7.2 Summary of
Environmental Complaints, Summon and Successful Prosecution
|
|
Total No. Received in this Reporting Month
|
Cumulative No. Received since Project Commencement
|
|
Environmental
Complaints
|
0
|
0
|
|
Notification
of Summons
|
0
|
0
|
|
Successful
Prosecutions
|
0
|
0
|
8.1.1
The major construction works between October 2024 to December 2024 will be:
Table 8.1 Major
Construction for the Next Three Month
|
Location
|
Site Activities
|
|
Contract No. DC/2023/15
Site Formation Works for Hung Shui Kiu
Effluent Polishing Plant Phase 1
|
- Construction
of Hoarding
- Demolition
Works
- Ground
Investigation Works
- Environmental
Site Investigation Works
- Tree
Felling Works
|
8.2.1 Potential environmental impacts arising from the above construction
activities are mainly associated with construction dust, construction noise,
water quality, waste management and landscape.
8.3.1 The tentative schedules for dust and water quality monitoring in October 2024 are provided
in Appendix E.
9.1.1 No Action and Limit Level exceedance was recorded for 1-hour TSP
monitoring in reporting month.
9.1.2 No Action and Limit Level exceedance was recorded for water quality monitoring in reporting month.
9.1.3 3 nos. of environmental site inspections
were carried out in September 2024.
Recommendations for environmental site improvement were given to the Contractor
for the deficiencies identified during the site audit.
9.1.4 No environmental complaint, notification of summon and successful
prosecution was received in the reporting month.
9.2.1 According to the environmental site inspections performed in the
reporting month, the following recommendations were provided:
Air Quality
Impact
·
Provide
proper dust suppression measures, such as wheel washing facility at the site
exit.
·
Ensure
the NRMM label is displayed properly for equipment.
Noise
Impact
·
No
specific observation was identified in the reporting month.
Water Quality Impact
·
No
specific observation was identified in the reporting month.
Chemical and Waste
Management
·
Provide
sufficient no. of drip trays for equipment and chemical containers and ensure
the trip drays are in good condition to prevent chemical spillage.
Landscape & Visual
Impact
·
No
specific observation was identified in the reporting month.
Permits/licenses
·
No specific observation
was identified in the reporting month.
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