Table
of Contents
2......... Project Information
2.3 Construction
Programme and Activities
2.5 Status
of Environmental Licences, Notification and Permits
3......... Environmental Monitoring
Requirements
3.1 Construction
Dust Monitoring
3.2 Construction
Noise Monitoring
3.3 Construction
Water Monitoring
4......... Implementation Status of
Environmental Mitigation Measures
5.1 Construction
Dust Monitoring
5.2 Regular
Construction Noise Monitoring
5.3 Construction
Water Monitoring
6......... ENVIRONMENTAL SITE INSPECTION AND AUDIT
7......... Environmental
Non-conformance
7.1 Summary
of Monitoring Exceedances
7.2 Summary
of Environmental Non-Compliance
7.3 Summary
of Environmental Complaints
7.4 Summary
of Environmental Summon and Successful Prosecutions
8.1 Construction
Programme for the Next Three Months
8.2 Key
Issues for the Coming Month
8.3 Monitoring
Schedule for the Coming Month
9......... ConclusionS AND RECOMMENDATIONS
List of Tables
Table
2.1......... Construction Activities
in the reporting month
Table
2.2......... Contact Information of Key Personnel
Table
2.3......... Status of Environmental Licenses, Notifications and Permits
Table
3.1 ........ Air Quality Monitoring Equipment
Table
3.2 ........ Location of Construction Dust Monitoring Station
Table
3.3 ........ Noise Monitoring Parameters, Frequency and Duration
Table
3.4 ........ Noise Monitoring Equipment for Regular Noise
Monitoring
Table
3.5 ........ Noise Monitoring Stations during Construction Phase
Table
3.6 ........ Noise Monitoring Parameters, Frequency and Duration
Table
3.7
Water Quality Monitoring Equipment
Table
3.8 Impact Water Quality Monitoring Stations
Table
3.9
Water Quality Monitoring Parameters, Frequency and Duration
Table
4.1......... Status of Required
Submission under Environmental Permit
Table
5.1 ........ Summary of 24-hour TSP Monitoring Result in the Reporting Period
Table
5.2 ........ Summary of 1-hour TSP Monitoring Result in the Reporting Period
Table
5.3 ........ Summary of Construction Noise Monitoring Results in the Reporting Period
Table
5.4 Summary
of Impact Water Quality Monitoring Results in October 2020
Table
5.5 Summary
of Impact Water Quality Monitoring Results in November 2020
Table
5.6 Summary
of Water Quality Exceedances in November 2020
Table
6.1 ........ Observations and Recommendations of Site Audit
Table
8.1......... Construction Activities
in the coming three months
List of Figures
Site Layout Plan |
|
Location of Air Quality Monitoring Station |
|
Locations of Noise Monitoring Station |
|
Locations of Water Monitoring Station |
List
of Appendices
Construction Programme |
|
Project Organization Structure |
|
Implementation Schedule of Environmental Mitigation Measures |
|
Summary of Action and Limit Levels |
|
Calibration Certificates of Equipment |
|
EM&A Monitoring Schedules |
|
Air Quality Monitoring Results and their Graphical Presentations |
|
Noise Monitoring Results and their Graphical Presentations |
|
Water Monitoring Results |
|
Detail of Water Quality Exceedance |
|
Event and Action Plan Cumulative Statistics on Complaints, Notification of Summons and Successful
Prosecutions |
|
Monthly Summary Waste Flow Table |
Central Kowloon Route
– Kai Tak West (CKR-KTW; Contract No. HY/2014/07) (hereafter called “the
Project”) covers part of the construction of the Central Kowloon Route (CKR).
The Project comprises
the follow works:
·
50x30m
access shaft with noise enclosure at Ma Tau Kok
(MTK);
·
100m long
cut-and-cover (C&C) tunnel at MTK;
·
Demolition
and re-provisioning of MTK Public Pier;
·
160m long
underwater tunnel (UWT) (Stage 1);
·
210m long
UWT (Stage 2);
·
60m long
C&C tunnel at Kai Tak;
·
130m long depressed
road and 200m long underpass at Kai Tak;
·
390m long
underground tunnel ventilation adit at Kai Tak;
·
Seawall
demolition and construction of new landing steps; and
·
Barging
Point enclosure and conveyor system.
The EM&A programme commenced on 4 April 2018.The impact EM&A for the Project includes air
quality, noise and water quality monitoring.
This is the thirty-second
monthly EM&A Report presenting the EM&A works carried out during the
period between 1 and 30 November 2020. As informed by the Contractor, major activities
in the reporting period were:
Locations |
Site Activities |
Kai Tak |
·
Casting tunnel wall at underpass and ventilation adit; ·
Base slab and wall, roof slab construction at underpass and
depressed road; ·
Backfilling at Underpass; ·
Removal of ELS at underpass and depressed road; ·
Falsework erection at underpass, depressed road and cut
& cover tunnel. |
Ma Tau Kok |
·
TTM implementation; ·
Pipe piling works for cut and cover tunnel; ·
Rock Excavation; ·
Shotcreting at the Access Shaft; ·
Fresh water pipe installation works; ·
Constrcution of MTK east wall and traffic deck; ·
Block paving at Covered Walkway. |
Kowloon Bay |
·
Concrete packing between wailing and CPP Wall; ·
Roof slab and base slab construction; ·
Waterproofing application; ·
Removal of gas pipe line. |
Barging Point |
·
Barging point operation (Spoil Disposal). |
Breaches of Action and Limit Levels for Air Quality
All 24-hour TSP result was below the Action
and Limit Levels at all monitoring locations in the reporting month.
All 1-hour TSP result was below the Action and
Limit Levels at all monitoring locations in the reporting month.
Breaches of Action and Limit Levels for Noise
Regular Noise Monitoring
No exceedance of Action and Limit Level of noise was
recorded in the reporting month .
Breaches of Action and Limit Levels for Water
After received the remaining laboratory results of Copper and
Total PAHs in October 2020, no unreported Action level and Limit level
exceedance was recorded for both parameters.
No Action level and Limit level exceedance were recorded at
measured DO, Total PAHs and Copper in reporting month.
One (1) Action Level and no Limit level exceedances was recorded
at measured Turbidity level in the reporting month.
Two (2) Action Level and Two (2) Limit Level exceedances were
recorded at measured Suspended Solids level in the reporting month.
Based on the findings from the completed IRs on 12, 14, 19,
21, 28 and 30 October 2020, and 6, 9 November 2020, the exceedances were
unrelated to the Project.
Complaint, Notification of Summons and Successful Prosecution
No environmental related complaints, notification of summons and
successful prosecution were received in the reporting month.
Reporting Changes
No report changes in the reporting period.
Future Key Issues
Key issues to be
considered in the next three months included:
Locations |
Site Activities |
Kai Tak |
·
Base slab and wall, roof slab construction at cut &
cover, underpass and depressed road; ·
Backfilling works and ELS removal at cut & cover,
underpass and depressed road; ·
Dismantle of working platform. |
Ma Tau Kok |
·
TTM implementation; ·
Pipe piling works for cut and cover tunnel east portion; ·
Fresh water pipe installation works; ·
Constrcution of traffic deck; ·
Covered walkway construction; ·
Relocation of MTK public pier. |
Kowloon Bay |
·
Backfilling and ELS removal works; ·
Roof slab, base slab and wall construction; ·
Waterproofing application; ·
Preparation works for Stage 2 UWT. |
Barging Point |
·
Barging point operation (Spoil Disposal); ·
Demolition of Kai Tak Barging Point; ·
Preparation works for taking over 1123 Barging Point. |
·
Section 1:
Introduction
·
Section 2:
Project Information
·
Section 3:
Environmental Monitoring Requirement
·
Section 4:
Implementation Status of Environmental Mitigation Measures
·
Section 5:
Monitoring Results
·
Section 6:
Environmental Site Inspection and Audit
·
Section 7: Environmental Non-conformance
·
Section 8:
Future Key Issues
·
Section 9:
Conclusions and Recommendations
(a) construction of approximately 160m long cut-and-cover tunnel and
370m long underwater tunnel between the tunnel section at Ma Tau Kok and the depressed road of the CKR within Kai Tak Development;
(b) reconstruction of the seawall at Ma Tau Kok
public pier, and the sloping seawall at the Former Kai Tak Airport Runway;
(c) construction of approximately 125m long depressed road and 200m long
underpass of the CKR within Kai Tak Development;
(d) construction of approximately 360m long underground tunnel ventilation
adit of the CKR;
(e) reconstruction of Kowloon City Ferry Pier Public Transport
Interchange; and
(f) other associated works.
Table 2.1 Construction Activities in the reporting month
Locations |
Site Activities |
Kai
Tak |
·
Casting tunnel wall at underpass and ventilation adit; ·
Base slab and wall, roof slab construction at underpass and
depressed road; ·
Backfilling at Underpass; ·
Removal of ELS at underpass and depressed road; ·
Falsework erection at underpass, depressed road and cut
& cover tunnel. |
Ma Tau
Kok |
·
TTM implementation; ·
Pipe piling works for cut and cover tunnel; ·
Rock Excavation; ·
Shotcreting at the Access Shaft; ·
Fresh water pipe installation works; ·
Constrcution of MTK east wall and traffic deck; ·
Block paving at Covered Walkway. |
Kowloon
Bay |
·
Concrete packing between wailing and CPP Wall; ·
Roof slab and base slab construction; ·
Waterproofing application; ·
Removal of gas pipe line. |
Barging
Point |
·
Barging point operation (Spoil Disposal). |
Table 2.2 Contact Information of Key Personnel
Party |
Role |
Position |
Name |
Telephone |
Fax |
Arup-Mott
MacDonald Joint Venture |
Residential
Engineer (ER) |
Engineer’s Representative |
Mr.
Jeffrey Lau |
2268 3640 |
2268 3954 |
ERM |
Independent
Environmental Checker (IEC) |
Independent
Environmental Checker |
Ms. Mandy To |
2271 3313 |
2723 5660 |
Gammon |
Contractor |
Contracts Manager |
Mr. Alan Yan |
2516 8823 |
2516 6260 |
Environmental Manager |
Ms Michelle Tang |
9267 8866 |
2516 6260 |
||
AECOM |
Contractor’s Environmental
Team (ET) |
ET Leader |
Mr. Y T Tang |
3922 9393 |
2317 7609 |
Table 2.3 Status of Environmental Licenses, Notifications and Permits
Permit / License No. / Notification/
Reference No. |
Valid Period |
Status |
Remarks |
|
From |
To |
|||
Further Environmental Permit |
||||
FEP-01/457/2013/C |
28 Feb 2018 |
End of Project |
Valid |
-- |
Wastewater Discharge License |
||||
WT00030290-2018 |
22 Mar 2018 |
31 May 2023 |
Valid |
Ma Tau Kok |
WT00030668-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Site Office at
Kai Tak West |
WT00030358-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Kai Tak West |
WT00030333-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Barging Point at
Portions 4B & 4C |
WT00030330-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Kowloon Bay |
Construction Noise Permit |
||||
GW-RE0709-20 |
27 Aug 2020 |
26 Feb 2021 |
Valid |
Barging Point Operation at
Kai Tak Barging Point |
GW-RE0603-20 |
4 Aug 2020 |
3 Nov 2020 |
Valid until 3
Nov 2020 |
Rock Breaking at Ma Tau Kok |
GW-RE0891-20 |
5 Nov 2020 |
4 Feb 2021 |
Valid on 5 Nov
2020 |
General Works at Ma Tau Kok |
GW-RE0874-20 |
20 Oct 2020 |
14 Apr 2021 |
Valid |
General Works at Kai Tak |
GW-RE0478-20 |
13 Jun 2020 |
12 Dec 2020 |
Superseded on 24
Nov 2020 |
ELS Installation and Excavation
at Stage 1 Underwater Tunnel |
GW-RE0989-20 |
24 Nov 2020 |
20 May 20201 |
Valid on 24
Nov 2020 |
ELS Removal at Stage 1 UWT |
GW-RE0761-20 |
1 Oct 2020 |
31 Mar 2021 |
Valid |
Kai Tak Haul Road |
Chemical
Waste Producer Registration |
||||
5118-247-G2347-47 |
30 Jan 2018 |
End of Project |
Valid |
-- |
5118-247-G2347-48 |
30 Jan 2018 |
End of Project |
Valid |
-- |
Marine Dumping Permit |
||||
EP/MD/21-038 |
8 Oct 2020 |
7 Apr 2021 |
Valid |
Sediments requiring Type 1
- Open Sea Disposal |
EP/MD/21-063 |
24 Oct 2020 |
23 Nov 2020 |
Valid until 23 Nov 2020 |
Sediments requiring Type 1
(Dedicated Site) and Type 2 Confined Marine Disposal |
Billing Account for Construction
Waste Disposal |
||||
7029909 |
22 Jan 2018 |
End of Project |
Account Active |
-- |
7031949 |
27 Aug 2020 |
26 Nov 2020 |
Account renewed on 27 Nov 2020 |
Billing Account for Disposal of Construction
Waste (by vessels) |
27 Nov 2020 |
26 Feb 2021 |
|||
Notification Under Air Pollution Control
(Construction Dust) Regulation |
||||
429442 |
5 Jan 2018 |
5 Jul 2025 |
Notified |
-- |
Monitoring Requirements
Monitoring Equipment
Table 3.1 Air Quality Monitoring Equipment
Tisch
Total Suspended Particulate Mass Flow Controlled High Volume Air Sampler |
|
Calibration
Kit (24-hour
TSP) |
TISCH
Environmental Orifice |
Portable
direct reading dust meter |
Sibata Digital Dust Monitor |
Monitoring Locations
Table 3.2 Location of Construction Dust Monitoring Station
Location |
Monitoring Station |
Description |
E-A14a
[1] |
Block
B of Merit Industrial Centre |
Rooftop
(13/F) |
[1] The air monitoring station
proposed in the EM&A Manual (i.e. Wyler Gardens with ID: E-A14) was not
available for impact dust monitoring, therefore impact monitoring was conducted
at E-A14a as an alternative which was agreed by the ER, IEC and EPD.
Monitoring
Methodology
(a)
The HVS
was installed in the vicinity of the air sensitive receivers. The following criteria were considered in the
installation of the HVS as far as practicable: -
(i)
A horizontal platform with
appropriate support to secure the sampler against gusty wind was provided.
(ii)
Two samplers should
not be placed less than 2m apart from each other;
(iii)
The distance between the HVS and
any obstacles, such as buildings, was at least twice the height that the obstacle
protrudes above the HVS.
(iv)
A minimum of 2 meters separation
from walls, parapets and penthouse for rooftop sampler.
(v)
A minimum of 2 meters separation
from any supporting structure, measured horizontally is required.
(vi)
No furnace or incinerator flues
nearby.
(vii)
Airflow around the sampler was
unrestricted.
(viii)
The sampler was located more than
20 meters from any dripline.
(ix)
Any wire fence and gate, required
to protect the sampler, did not obstruct the monitoring process.
(x)
Permission was obtained to set up
the samplers and access to the monitoring station.
(xi)
A secured supply of electricity
was obtained to operate the sampler.
(b)
Preparation
of Filter Papers
(i)
Glass fibre filters, G810 were
labelled and sufficient filters that were clean and
without pinholes were selected.
(ii)
All filters were equilibrated in
the conditioning environment for 24 hours before weighing. The conditioning
environment temperature was around 25 °C and not variable by more than ±3 °C;
the relative humidity (RH) was < 50% and not variable by more than ±5%. A
convenient working RH was 40%.
(iii)
All filter papers were prepared
and analysed by ALS Technichem (HK) Pty Ltd., which is a HOKLAS accredited laboratory
and has comprehensive quality assurance and quality
control programmes.
(c)
Field
Monitoring
(i)
The power
supply was checked to ensure the HVS works properly.
(ii)
The filter holder and the area surrounding
the filter were cleaned.
(iii)
The filter holder was removed by
loosening the four bolts and a new filter, with stamped number upward, on a
supporting screen was aligned carefully.
(iv)
The filter was properly aligned
on the screen so that the gasket formed an airtight seal on the outer edges of
the filter.
(v)
The swing bolts were fastened to
hold the filter holder down to the frame.
The pressure applied was sufficient to avoid
air leakage at the edges.
(vi)
Then the shelter lid was closed and
was secured with the aluminium strip.
(vii)
The HVS was warmed-up for about 5
minutes to establish run-temperature conditions.
(viii)
A new flow rate record sheet was
set into the flow recorder.
(ix)
On site temperature and
atmospheric pressure readings were taken and the flow rate of the HVS was checked
and adjusted at around 1.3 m3/min, and
complied with the range specified in the EM&A Manual (i.e. 0.6-1.7 m3/min).
(x)
The programmable digital timer
was set for a sampling period of 24 hrs, and the starting time, weather condition
and the filter number were recorded.
(xi)
The initial elapsed time was
recorded.
(xii)
At the end of sampling, on site
temperature and atmospheric pressure readings were taken and the final flow rate
of the HVS was checked and recorded.
(xiii)
The final elapsed time was recorded.
(xiv)
The sampled filter was removed carefully
and folded in half length so that only surfaces with
collected particulate matter were in contact.
(xv)
It was then placed in a clean
envelope and sealed.
(xvi)
All monitoring information was
recorded on a standard data sheet.
(xvii)
Filters were then sent to ALS Technichem (HK)
Pty Ltd. for analysis.
(d)
Maintenance
and Calibration
(i)
The HVS and its accessories were maintained in good working condition, such as replacing
motor brushes routinely and checking electrical wiring to ensure a continuous power
supply.
(ii)
HVSs were calibrated using
TE-5025A Calibration Kit upon installation and thereafter at bi-monthly intervals.
(iii)
Calibration certificate
of the TE-5025A Calibration
Kit and the HVSs are provided in Appendix E.
(a)
Measuring Procedures
The measuring procedures of the 1-hour dust
meter are in accordance with the Manufacturer’s Instruction Manual as follows:
(i)
Turn the power on.
(ii)
Close the air collecting opening cover.
(iii)
Push the “TIME SETTING” switch to [BG]
(iv)
Push “START/STOP”
switch to perform background measurement for 6 seconds.
(v)
Turn the knob at SENSI ADJ position to insert
the light scattering plate.
(vi)
Leave the equipment for 1 minute upon “SPAN CHECK”
is indicated in the display.
(vii)
Push “START/STOP” switch to perform automatic
sensitivity adjustment. This measurement takes 1 minute.
(viii)
Pull out the knob and return it to MEASURE
position.
(ix)
Push the “TIME SETTING” switch the time set
in the display to 3 hours.
(x)
Lower down the air collection opening cover.
(xi)
Push “START/STOP” switch to start measurement.
(b)
Maintenance and
Calibration
(i)
The 1-hour TSP meter was
calibrated at 1-year intervals against a continuous particulate TEOM Monitor,
Series 1400ab. Calibration certificates of the Laser Dust Monitors are
provided in Appendix E.
Monitoring Schedule for the Reporting
Month
Monitoring Requirements
Table 3.3 Noise Monitoring Parameters, Frequency and Duration
Parameter and Duration |
Frequency |
30-mins
measurement at each monitoring station between 0700 and 1900 on normal weekdays.
Leq, L10 and L90
would be recorded. |
At least once per week |
Table 3.4 Noise Monitoring Equipment for Regular Noise Monitoring
B&K (Model No. 2250-L & 2238) |
|
Acoustic
Calibrator |
B&K (Model
No. CAL21) |
Monitoring Locations
Table 3.5 Noise Monitoring Stations during Construction Phase
Location |
Monitoring Station |
Description |
Measurement |
E-N12a [1] |
19 Hing Yan Street |
Rooftop (9/F) |
Façade |
E-N21a [1] |
Block B of Merit Industrial Centre |
Rooftop (13/F) |
Free field[2] |
Notes:
[1] The noise monitoring stations proposed in the
EM&A Manual (i.e. Grand Waterfront Tower 3 with ID: E-N12 and Hang Chien Court Block J with ID: E-N21) were not available for impact
noise monitoring, therefore impact monitoring was conducted at E-N12a and
E-N21a as an alternative which was
agreed by the ER, IEC and EPD.
[2] A
correction of +3 dB(A) was made to the free field measurements.
Monitoring
Parameters, Frequency and Duration
Table 3.6 Noise Monitoring Parameters, Frequency and Duration
Location |
Parameter and Duration |
Frequency |
E-N12a
and E-N21a |
30-mins measurement at each monitoring
station between 0700 and 1900 on normal weekdays. Leq,
L10 and L90 would be recorded. |
At
least once per week |
Monitoring Methodology
(a)
The sound level meter was set on
a tripod at a height of 1.2 m above the ground.
(b)
Façade measurement was made at E-N12a.
(c)
Free field measurements was made at monitoring location E-N21a. A correction of +3 dB(A)
shall be made to the free field measurements.
(d)
The battery condition was checked to ensure the correct
functioning of the meter.
(e)
Parameters such as frequency weighting,
the time weighting and the measurement time were set as follows:
(i)
frequency weighting
(ii)
time weighting: Fast
(iii)
time measurement: Leq(30-minutes) during non-restricted
hours i.e. 0700 – 1900 on normal weekdays.
(f)
Prior to and after each noise
measurement, the meter was calibrated using the acoustic calibrator for 94 dB(A)
at 1000 Hz. If the difference in the calibration
level before and after measurement was more than 1 dB(A), the measurement would
be considered invalid and repeat of noise measurement would be required after
re-calibration or repair of the equipment.
(g)
During the monitoring period, the
Leq, L10 and L90
were recorded. In addition, site conditions
and noise sources were recorded on a standard record sheet.
(h)
Noise measurement was paused
during periods of high intrusive noise (e.g. dog barking, helicopter noise) if
possible. Observations were recorded when intrusive noise was unavoidable.
(i)
Noise monitoring was cancelled in
the presence of fog, rain, wind with a steady speed exceeding 5m/s, or wind
with gusts exceeding 10m/s.
(a)
The microphone
head of the sound level meter was cleaned with soft
cloth at regular intervals.
(b)
The meter
and calibrator were sent to the supplier or HOKLAS laboratory to check and
calibrate at yearly intervals.
(c)
Calibration
certificates of the sound level meters and acoustic calibrators are
provided in Appendix E.
Monitoring Schedule for the Reporting
Month
Table 3.7 Water Quality Monitoring Equipment
Equipment |
Brand and Model |
Detection Limit |
Dissolved Oxygen
Meter |
YSI 6820 V2 |
0 – 20 mg/L 0-200% saturation |
Water Temperature
Meter |
0-45 degree Celsius |
|
Salinity Meter |
0-40 parts per thousand
(ppt) |
|
Turbiditimeter |
0-1000 NTU |
|
pH meter |
pH 0.0 to 14.0 |
|
Water Sampler |
Kahlsico Water Sampler |
N.A |
Echo Sounder |
Eagle Cuda-168 |
N.A |
Global
Positioning System |
JRC DGPS 224
Model JLR-4341 with J-NAV 500 Model NWZ4551 |
N.A |
Table 3.8 Impact Water Quality Monitoring Stations
Type of Station |
Station |
Location |
Easting |
Northing |
Water
Quality Monitoring Station |
IS1 |
Planned Kai Tak Cooling Water Intake (subject to its
implementation) |
839050 |
819377 |
IS2 |
To Kwa Wan Typhoon Shelter |
838450 |
819399 |
|
IS3 |
Tai Wan Salt Water Intake |
837948 |
818202 |
|
Control
Station |
C1 |
Control
Station 1 |
837787 |
817712 |
C2 |
Control
Station 2 |
838237 |
818804 |
|
C3 |
Control
Station 3 |
839105 |
819019 |
Table 3.9 Water Quality Monitoring Parameters, Frequency and Duration
Parameter |
Frequency and Duration |
Dissolved Oxygen, Temperature, Turbidity,
pH value, Salinity, Suspended Solids, Copper and Total PAHs |
Three days per week, at mid-flood and mid-ebb tides |
All monitoring equipment were
checked and calibrated before use. Responses of sensors and electrodes were also
checked with certified standard solutions before each use.
The interval between 2 sets of
monitoring was not less than 36 hours.
Individual flood and ebb tides
not less than 0.5m.
At least 3 replicate in-situ measurements
and water sampling were carried out in each sampling event.
Measurements were taken at 3 water
depths, namely 1m below water surface, mid-depth and 1m above sea bed, except where the water depth less than 6m, the mid-depth
station may be omitted. Should the water depth be less than 3m, only the
mid-depth station was monitored.
Analysis of suspended solids was carried
out by ALS Technichem (HK) Pty Ltd. Sufficient water samples
were collected at the monitoring stations for carrying out the laboratory analysis.
The analysis followed the standard methods as described in APHA Standard
Methods for the Examination of Water and Wastewater, 19th Edition (APHA 2540D
for SS).
Analysis of copper was carried
out by ALS Technichem (HK) Pty Ltd. Sufficient water samples
were collected at the monitoring stations for carrying out the laboratory
analysis. The analysis followed the standard methods as described in USEPA
Method for inductively coupled plasma-mass spectrometry (ICP-MS), Revision 1
(ICP-MS USEPA 6020A for copper).
Analysis of total polycyclic
aromatic hydrocarbon (PAHs) was carried out by ALS Technichem
(HK) Pty Ltd. Sufficient
water samples were collected at the monitoring stations for carrying out the
laboratory analysis. The analysis followed the standard methods as described in
USEPA Methods for Gas Chromatography-Mass Spectrometry Detector, Revision 3, (GC-MSD
USEPA 3510C,USEPA 3630C,USEPA 8270C for total PAHs).
Water samples for suspended
solids measurements were collected in high density polythene bottles, packed in
ice (cooled to 4oC without being frozen), and delivered to a HOKLAS
laboratory as soon as possible after collection.
Monitoring Schedule for the Reporting
Month
Table 4.1 Status of Required Submission under Environmental Permit
EP Condition |
Submission |
Submission
Date |
Condition 3.4 of |
Monthly EM&A Report for
October 2020 |
13 November 2020 |
Table 5.1 Summary of 24-hour TSP
Monitoring Result in the Reporting Period
ID |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
E-A14a |
64.2 |
41.8 – 83.2 |
197.3 |
260 |
Table 5.2 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) |
E-A14a |
60.0 |
52.5
– 63.1 |
302.4 |
500 |
Table 5.3 Summary of Construction Noise Monitoring Results in the Reporting Period
ID |
Range, dB(A), Leq (30 mins) |
Limit Level, dB(A), Leq (30 mins) |
E-N12a |
65.0
– 67.6 |
75 |
E-N21a |
65.0
– 69.6 |
75 |
Table 5.4 Summary of Impact Water Quality Monitoring Results in October 2020
Locations |
Parameters |
|||||||||
Temperature (oC) |
pH value |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Salinity (ppt) |
Suspended Solids (mg/L) |
Copper |
Total PAHs (µg/L) |
|||
Surface &
Middle |
Bottom |
|||||||||
CS1 |
Avg. |
25.59 |
7.98 |
6.15 |
6.13 |
3.89 |
34.16 |
3.82 |
1.28 |
<1.6 |
Min. |
22.55 |
7.34 |
5.43 |
5.37 |
2.43 |
30.33 |
2.21 |
<1 |
<1.6 |
|
Max. |
28.72 |
8.22 |
6.76 |
6.79 |
9.07 |
35.67 |
6.59 |
2.00 |
<1.6 |
|
CS2 |
Avg. |
25.59 |
7.98 |
6.15 |
6.13 |
3.64 |
34.09 |
3.92 |
1.23 |
<1.6 |
Min. |
22.61 |
7.38 |
5.34 |
5.26 |
1.60 |
30.07 |
2.54 |
<1 |
<1.6 |
|
Max. |
28.69 |
8.17 |
6.75 |
6.74 |
8.13 |
35.63 |
6.81 |
2.00 |
<1.6 |
|
CS3 |
Avg. |
25.59 |
7.98 |
6.15 |
6.13 |
3.57 |
34.09 |
4.32 |
1.29 |
<1.6 |
Min. |
22.68 |
7.39 |
5.52 |
5.10 |
1.38 |
30.01 |
2.51 |
<1 |
<1.6 |
|
Max. |
28.70 |
8.16 |
6.76 |
6.76 |
8.14 |
35.61 |
7.08 |
2.33 |
<1.6 |
|
IS1 |
Avg. |
25.60 |
7.97 |
6.16 |
6.12 |
3.64 |
34.09 |
3.88 |
1.13 |
<1.6 |
Min. |
22.66 |
7.40 |
5.61 |
5.29 |
1.37 |
29.98 |
2.33 |
<1 |
<1.6 |
|
Max. |
28.69 |
8.16 |
6.76 |
6.75 |
7.80 |
35.62 |
6.26 |
2.00 |
<1.6 |
|
IS2 |
Avg. |
25.61 |
7.98 |
6.16 |
6.13 |
3.68 |
34.07 |
4.04 |
1.44 |
<1.6 |
Min. |
22.63 |
7.40 |
5.57 |
5.21 |
1.57 |
29.99 |
2.37 |
<1 |
<1.6 |
|
Max. |
28.71 |
8.17 |
6.75 |
6.74 |
7.42 |
35.62 |
7.42 |
2.00 |
<1.6 |
|
IS3 |
Avg. |
25.59 |
7.98 |
6.17 |
6.14 |
3.79 |
34.13 |
4.13 |
1.23 |
<1.6 |
Min. |
22.54 |
7.38 |
5.51 |
5.34 |
1.88 |
30.40 |
2.48 |
<1 |
<1.6 |
|
Max. |
28.69 |
8.18 |
6.74 |
6.75 |
8.28 |
35.63 |
7.38 |
2.00 |
<1.6 |
Table 5.5 Summary of Impact Water Quality Monitoring Results in November 2020
Locations |
Parameters |
|||||||||
Temperature (oC) |
pH value |
Dissolved Oxygen (mg/L) |
Turbidity (NTU) |
Salinity (ppt) |
Suspended Solids (mg/L) |
Copper1 |
Total PAHs1 (µg/L) |
|||
Surface &
Middle |
Bottom |
|||||||||
CS1 |
Avg. |
22.18 |
8.11 |
6.94 |
6.91 |
1.84 |
35.48 |
3.34 |
1.00 |
<1.6 |
Min. |
21.74 |
7.99 |
6.46 |
6.43 |
1.42 |
34.92 |
2.46 |
<1 |
<1.6 |
|
Max. |
22.69 |
8.28 |
7.36 |
7.33 |
2.61 |
35.72 |
4.19 |
1.00 |
<1.6 |
|
CS2 |
Avg. |
22.18 |
8.12 |
6.96 |
6.93 |
1.76 |
35.47 |
3.27 |
1.00 |
<1.6 |
Min. |
21.75 |
8.00 |
6.47 |
6.43 |
1.44 |
34.93 |
2.38 |
<1 |
<1.6 |
|
Max. |
22.58 |
8.27 |
7.38 |
7.37 |
2.23 |
35.72 |
4.43 |
1.00 |
<1.6 |
|
CS3 |
Avg. |
22.20 |
8.12 |
6.97 |
6.97 |
1.65 |
35.44 |
2.78 |
1.00 |
<1.6 |
Min. |
21.75 |
7.99 |
6.43 |
6.42 |
1.31 |
34.82 |
2.09 |
<1 |
<1.6 |
|
Max. |
22.59 |
8.29 |
7.39 |
7.44 |
2.20 |
35.71 |
3.93 |
1.00 |
<1.6 |
|
IS1 |
Avg. |
22.19 |
8.13 |
6.95 |
6.95 |
1.74 |
35.48 |
3.06 |
1.00 |
<1.6 |
Min. |
21.75 |
8.00 |
6.46 |
6.45 |
1.36 |
35.21 |
2.29 |
<1 |
<1.6 |
|
Max. |
22.61 |
8.31 |
7.39 |
7.39 |
2.29 |
35.71 |
4.51 |
1.00 |
<1.6 |
|
IS2 |
Avg. |
22.19 |
8.14 |
6.98 |
6.97 |
1.70 |
35.49 |
3.16 |
1.00 |
<1.6 |
Min. |
21.76 |
8.03 |
6.57 |
6.60 |
1.41 |
35.24 |
2.47 |
<1 |
<1.6 |
|
Max. |
22.59 |
8.33 |
7.41 |
7.39 |
2.21 |
35.72 |
4.01 |
1.00 |
<1.6 |
|
IS3 |
Avg. |
22.18 |
8.12 |
6.94 |
6.92 |
1.80 |
35.47 |
3.37 |
1.00 |
<1.6 |
Min. |
21.74 |
8.01 |
6.49 |
6.48 |
1.38 |
35.04 |
2.60 |
<1 |
<1.6 |
|
Max. |
22.66 |
8.27 |
7.38 |
7.38 |
2.31 |
35.71 |
4.06 |
1.00 |
<1.6 |
|
Note: |
|
|||||||||
1.
Some of laboratory results of Copper and Total PAHs
in October 2020 were in progress, the summary for those parameters will be
reported in next reporting period. |
Table 5.6 Summary of Water Quality Exceedances in November 2020
Station |
Exceedance Level |
DO (S&M) |
DO (Bottom) |
Turbidity |
Suspended Solids |
Copper |
Total PAHs |
|||||||
Action |
Limit |
Action |
Limit |
Action |
Limit |
Action |
Limit |
Action |
Limit |
Action |
Limit |
|||
IS1 |
Ebb |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Flood |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
||
IS2 |
Ebb |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Flood |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
||
IS3 |
Ebb |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Flood |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
||
|
Total |
0 |
0 |
0 |
0 |
1 |
0 |
2 |
2 |
0 |
0 |
0 |
0 |
|
|
|
|||||||||||||
Table 6.1 Observations and Recommendations of Site Audit
Parameters |
Date |
Observations and Recommendations |
Follow-up |
Air Quality |
4 November 2020 |
· Exposed area at the Kai Tak Barging Point was observed to
be dry. The Contractor was reminded to provide water spraying regularly on
the exposed area for dust suppression. |
The item was rectified by the
Contractor on 6 November 2020. |
· Residual silt was observed rested on the worker’s pathway
at Ma Tau Kok. The Contractor was reminded to
remove the residual silt for dust suppression. |
The item was rectified by the
Contractor on 6 November 2020. |
||
18 November 2020 |
Reminder: · The Contractor was reminded to provide water spraying
regularly on the haul road at Marine Platform. |
The item was rectified by the
Contractor on 19 November 2020. |
|
Noise |
11 November 2020 |
Reminder: · The Contractor was reminded to erect the noise barrier on
the engine of the breaker at Ma Tau Kok before
commencing breaking. |
The item was rectified by the
Contractor on 13 November 2020. |
25 November 2020 |
Reminder: · The Contractor was reminded to affix the noise emission
label on the air compressor at Ma Tau Kok before
operation. |
The item was rectified by the
Contractor on 27 November 2020. |
|
Water Quality |
11 November 2020 |
Reminder: · The Contractor was reminded to improve the bunding at
Covered Walkway to prevent muddy water seepage. |
The item was rectified by the
Contractor on 14 November 2020. |
18 November 2020 |
Reminder: · The Contractor was reminded to improve the bunding along
the site boundary at Ma Tau Kok. |
The item was rectified by the
Contractor on 26 November 2020 |
|
Waste/ Chemical Management |
4 November 2020 |
· Chemicals were observed stored without drip tray at Stage
1 area. The Contractor was reminded to provide a drip tray for chemical
storage. |
The item was rectified by the
Contractor on 9 November 2020. |
18 November 2020 |
· General refuse was not stored with enclosed bin at Kai
Tak. The Contractor was reminded to provide proper handling for general
refuse storage. |
The item was rectified by the
Contractor on 24 November 2020. |
|
Landscape & Visual |
Nil |
Nil |
Nil |
Permits/ Licenses |
Nil |
Nil |
Nil |
Table 8.1 Construction Activities in the coming three months
Locations |
Site Activities |
Kai
Tak |
·
Base slab and wall, roof slab construction at cut &
cover, underpass and depressed road; ·
Backfilling works and ELS removal at cut & cover,
underpass and depressed road; ·
Dismantle of working platform. |
Ma
Tau Kok |
·
TTM implementation; ·
Pipe piling works for cut and cover tunnel east portion; ·
Fresh water pipe installation works; ·
Constrcution of traffic deck; ·
Covered walkway construction; ·
Relocation of MTK public pier. |
Kowloon
Bay |
·
Backfilling and ELS removal works; ·
Roof slab, base slab and wall construction; ·
Waterproofing application; ·
Preparation works for Stage 2 UWT. |
Barging
Point |
·
Barging point operation (Spoil Disposal); ·
Demolition of Kai Tak Barging Point; ·
Preparation works for taking over 1123 Barging Point. |