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 and noise monitoring.
This is the second
monthly EM&A Report presenting the EM&A works carried out during the
period between 1 and 31 May 2018. As informed by the Contractor, major
activities in the reporting period were:
|
Locations
|
Site Activities
|
|
Kai Tak
|
·
Pipe piling
·
Sheet piling
·
Hoarding erection
·
U-channel and drainage works
·
Construction of site offices
|
|
Ma Tau Kok
|
·
Site investigation
·
Site clearance
·
Tree felling
·
Temporary Traffic Management implementation
·
Alternation and temporary reinstatement of road pavements for
Temporary Traffic arrangement stages
·
Installation of monitoring instrument
·
Hoarding erection
·
Existing bus shelter removal
·
Provision of temporary bus shelters
·
Demolition of existing vehicular ramp and booth structure
|
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 Action Level exceedance was recorded since no noise related
complaint was received in the reporting month.
No
exceedance of Limit Level of noise was recorded in the reporting month.
Complaint,
Notification of Summons and Successful Prosecution
One (1) complaint (received by 1823 hotline on 30 April 2018) was
referred by the Contractor on 11 May 2018. The investigation report was
finalized on 21 May 2018. No 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:
|
Locations
|
Site Activities
|
|
Kai Tak
|
·
Pipe piling
·
Sheet piling
·
Hoarding erection
·
U-channel and drainage works
·
Construction of site offices
|
|
Ma Tau Kok
|
·
Site investigation
·
Site clearance
·
Tree felling
·
Temporary Traffic Management implementation
·
Alternation and temporary reinstatement of road pavements
for Temporary Traffic arrangement stages
·
Installation of monitoring instrument
·
Hoarding erection
·
Existing bus shelter removal
·
Provision of temporary bus shelters
·
Demolition of existing vehicular ramp and booth structure
·
Pile pilling
|
Potential environmental impacts arising
from the above construction activities are mainly associated with construction dust, construction noise, water pollution
control, and waste management.
Gammon
Construction Limited was commissioned by the Highways Department as the Civil Contractor
for Works Contract HY/2014/07. AECOM Asia Company Limited (AECOM) was appointed
by Gammon Construction Limited as the Environmental Team (ET) to undertake the
Environmental Monitoring and Audit (EM&A) programme during construction
phase of the Project.
1.1.1
This is the second monthly EM&A Report which
summaries the impact monitoring results and audit findings for the Project
during the reporting period between 1 and 31 May 2018.
1.2.1
This monthly EM&A Report is organized as follows:
·
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
2.1.1
CKR is a dual 3-lane trunk road across central
Kowloon linking the West Kowloon in the west and the Kai Tak Development (KTD)
in the east. The CKR will be about 4.7 km long with an underground tunnel
section of about 3.9 km long, in particular, there will be an underwater tunnel
of about 370 m long in Kowloon Bay to the north of the To Kwa Wan Typhoon
Shelter. It will connect the West Kowloon Highway at Yau Ma Tei Interchange
with the road network at Kowloon Bay and the future Trunk Road T2 at KTD which
will connect to the future Tseung Kwan O – Lam Tin Tunnel (TKO-LTT) and Cross
Bay Link (CBL). CKR, Trunk Road T2 and TKO-LTT will form a strategic highway
link, namely Route 6, connecting West Kowloon and Tseung Kwan O. In addition, 3
ventilation buildings, which will be located in Ya Ma Tei, Ho Man Tin and
ex-Kai Tak airport area, are proposed to ensure acceptable air quality within
the tunnel.
2.1.2
The Environmental Impact Assessment (EIA) Report for Central Kowloon Route (Register No.: AEIAR-171/2013)
was approved on 11 July 2013 under the Environmental Impact Assessment
Ordinance (EIAO). Following the approval of the EIA Report, an Environmental
Permit (EP) for CKR was granted on 9 August 2013 (EP No.: EP- 457/2013) for the
construction and operation. Variation of EP (VEP) was subsequently applied
and the latest EP (EP No. EP-457/2013/C) was issued by the Director of
Environmental Protection (DEP) on 16 January 2017. Further Environmental Permit (EP No.
FEP-01/457/2013/C) for CKR – Kai Tak West was issued on 28 February 2018.
2.1.3
The
construction of the CKR had been divided into different sections. This Work
Contract HY/2014/07 – Kai Tak West (KTW) (“The Project”) will include a road which is a trunk road, including new roads, and major
extensions or improvements to existing roads; a road fully enclosed by decking
above and by structure on the sides for more than 100 m; and reclamation works
(including associated dredging works) more than 1 ha in size and a boundary of
which is less than 100 m from an existing residential area.
2.1.4
The site layout plan of the Project is
shown in Figure 1.1.
2.2.1
The major construction activities under
this Project include:
(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.
2.3.1
The major construction activities
undertaken in the reporting month are summarized in Table 2.1.
Table 2.1 Construction Activities in the reporting month
|
Locations
|
Site Activities
|
|
Kai
Tak
|
·
Pipe piling
·
Sheet piling
·
Hoarding erection
·
U-channel and drainage works
·
Construction of site offices
|
|
Ma
Tau Kok
|
·
Site investigation
·
Site clearance
·
Tree felling
·
Temporary Traffic Management implementation
·
Alternation and temporary reinstatement of road pavements
for Temporary Traffic arrangement stages
·
Installation of monitoring instrument
·
Hoarding erection
·
Existing bus shelter removal
·
Provision of temporary bus shelters
·
Demolition of existing vehicular ramp and booth structure
|
2.3.2
The
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
|
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
|
Mr. Brian Kam
|
9456 9541
|
2516 6260
|
|
Environmental Officer
|
Ms. Phoebe Ng
|
9869 1105
|
|
AECOM
|
Contractor’s
Environmental Team (ET)
|
ET Leader
|
Mr. Y T Tang
|
3922 9392
|
2317 7609
|
2.5.1
Relevant
environmental licenses, permits and/or notifications on environmental
protection for this Project and valid in the reporting month are summarized in
Table 2.3.
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
|
|
PP-RE0021-18
|
2 May 2018
|
31 Oct 2018
|
Valid
|
Percussive
Piling at Kai Tak Area
|
|
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
|
--
|
|
Billing Account
for Construction Waste Disposal
|
|
7029909
|
22 Jan 2018
|
End of Project
|
Account Active
|
--
|
|
Notification
Under Air Pollution Control (Construction Dust) Regulation
|
|
429442
|
5 Jan 2018
|
5 Jul 2025
|
Notified
|
--
|
Monitoring Requirements
3.1.1
In accordance with the
approved EM&A Manual, measurement of 24-hour and 1-hour Total Suspended
Particulates (TSP) level at the designated air quality monitoring station is
required. Impact
24-hour TSP monitoring should be carried out for at least once every 6 days, and 1-hour TSP monitoring should be done at least 3 times
every 6 days while the highest dust impact is expected. The Action and Limit
Levels of the air quality monitoring is provided in Appendix D.
Monitoring Equipment
3.1.2
24-hour TSP air quality monitoring was performed using
High Volume Sampler (HVS) located at the designated monitoring station. The HVS
meets all the requirements of the EM&A Manual.
3.1.3
A portable direct reading dust meter was used to carry
out the 1-hour TSP monitoring.
3.1.4
Brand and model of the equipment is given in Table 3.1.
Table 3.1 Air Quality Monitoring
Equipment
Monitoring Locations
3.1.5
The monitoring station for construction dust monitoring
pertinent to the Project has been identified based on the approved EM&A
Manual for the Project. The location of
the construction dust monitoring station is summarized in Table 3.2 and shown in Figure 3.1.
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)
|
Note:
[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
3.1.6
24-hour TSP
Monitoring
(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 others;
(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.
3.1.7
1-hour TSP
Monitoring
(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
3.1.8
The schedule for environmental monitoring
in May 2018 is provided in Appendix F.
Monitoring Requirements
3.2.1
In accordance
with the EM&A Manual, impact noise monitoring should be conducted for at least once a week during the construction phase
of the Project. Table 3.3 summarizes the monitoring parameters, frequency and
duration of impact noise monitoring. The Action and Limit Levels of the noise
monitoring is provided in Appendix D.
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
|
Monitoring
Equipment
3.2.2
Noise monitoring was performed using sound level meter at
each designated monitoring station. The sound
level meters deployed comply with the International Electrotechnical Commission
Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator was deployed to check the
sound level meters at a known sound pressure level. Brand and model of the equipment is given in Table 3.4.
Table 3.4 Noise Monitoring Equipment
for Regular Noise Monitoring
Monitoring Locations
3.2.3
The monitoring stations for construction noise monitoring
pertinent to the Project have been identified based on the approved EM&A
Manual for the Project. Locations of the
noise monitoring stations are summarized in Table 3.5 and shown in Figure 3.2.
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
3.2.4
Table 3.6 summarizes the monitoring
parameters, frequency and duration of impact noise monitoring.
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
3.2.5
Monitoring Procedure
(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: A
(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.
3.2.6
Maintenance and
Calibration
(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
3.2.7
The schedule for environmental monitoring
in May 2018 is provided in Appendix F.
3.3
Landscape and Visual
3.3.1
As per the EM&A Manuals, the landscape and visual
mitigation measures shall be implemented and site inspections should be undertaken
once every two weeks during the construction period. A summary of the
implementation status is presented in Section
6.
4.1.1
The Contractor has implemented environmental mitigation
measures and requirements as stated in the EIA Reports, the EP and EM&A
Manuals. The implementation status of the environmental mitigation measures
during the reporting period is summarized in Appendix C.
Status of required submissions under the EP during the
reporting period is summarised in Table 4.1.
Table 4.1 Status of Required Submission under Environmental Permit
|
EP Condition
|
Submission
|
Submission
Date
|
|
Condition 3.4 of
EP- 457/2013/C
and
Condition 3.4 of
FEP-01/457/2013/C
|
Monthly EM&A Report for April 2018
|
14 May 2018
|
5.1.1
The monitoring results for 24-hour TSP and 1-hour TSP
are summarized in Table 5.1 and Table 5.2
respectively. Detailed air
quality monitoring results and daily
extract of meteorological observations are presented in Appendix G.
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
|
27.7
|
17.2 – 49.1
|
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
|
70.5
|
58.9 – 79.4
|
302.4
|
500
|
5.1.2
No Action and
Limit Level exceedance was recorded for 24-hour TSP monitoring at the monitoring
location in the reporting month.
5.1.3
No Action and
Limit Level exceedance was recorded for 1-hour TSP monitoring at the monitoring
location in the reporting month.
5.1.4
The event and action plan is annexed in
Appendix I.
5.1.5
Major dust sources during the monitoring included
construction dust and nearby traffic emission.
5.2.1
The monitoring results for noise are summarized in Table 5.3 and the monitoring data is provided in Appendix H.
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
|
58.5 – 66.8
|
75
|
|
E-N21a
|
59.6 – 67.7
|
75
|
5.2.2
No noise complaint was
received in the reporting month; hence, no Action Level exceedance was
recorded.
5.2.3
No Limit Level exceedance of noise was recorded
at the monitoring station in the reporting month.
5.2.4
The event and action plan is annexed in Appendix I.
5.2.5
Major noise sources during the
monitoring included construction noise from the Project site and nearby traffic
noise.
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, 468 m3 of
inert C&D
material was generated and disposed of as public fill in the
reporting month. 27.650 kg general refuse was generated and sent to NENT
Landfill in the reporting month. No metals, paper/cardboard packaging
and plastics were collected by recycle contractor in the reporting month. No
chemical waste
was collected by licensed contractor in the reporting period.
No Type 1 or 2 Marine sediment was disposed of. The waste flow table is annexed in Appendix K.
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. The Contractor is
reminded to properly maintain the site tidiness and dispose of the wastes
accumulated on site regularly and properly.
5.3.4
The Contractor is reminded that chemical waste
containers should be properly treated and stored temporarily in designated
chemical waste storage area on site in accordance with the Code of Practise on
the Packaging, Labelling and Storage of Chemical Wastes.
5.4.1
Bi-weekly inspection of the
implementation of landscape and visual mitigation measures was conducted on 2,
16 and 30 May 2018. A summary of the site inspection 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, 5 site inspections were
carried out on 2, 9, 16, 23 and 30 May 2018. Joint
inspections with the IEC, ER, the Contractor and the ET were conducted on 16
May 2018. 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 Observations and
Recommendations of Site Audit
|
Parameters
|
Date
|
Observations and Recommendations
|
Follow-up
|
|
Air Quality
|
2 May 2018
|
· The Contractor
was reminded to enhance the watering for exposed surface at Kai Tak.
|
The item was
rectified by the Contractor on 4 May 2018.
|
|
16 May 2018
|
· An NRMM label
was observed missing on a drum roller at Kai Tak. The Contractor was reminded
to adhere the NRMM label on the machine.
|
The item was rectified
by the Contractor on 23 May 2018.
|
|
30 May 2018
|
· The stockpiles
of fill material was not covered at Kai Tak. The Contractor was advised to
cover the stockpiles of fill material with impervious sheeting as dust
suppression measures.
|
The item was rectified
by the Contractor on 31 May 2018.
|
|
Noise
|
Nil
|
Nil
|
Nil
|
|
Water Quality
|
Nil
|
Nil
|
Nil
|
|
Waste/ Chemical Management
|
16 May 2018
|
· Chemical
containers were observed without drip tray at Kai Tak. The Contractor was
reminded to provide a drip tray for the chemical containers.
|
The item was
rectified by the Contractor on 23 May 2018.
|
|
23 May 2018
|
· Oil stain was
observed near an air compressor at Kai Tak Site Area. The Contractor was
advised to remove the oil stain to prevent land contamination.
|
The item was rectified
by the Contractor on 24 May 2018.
|
|
Landscape
& Visual
|
Nil
|
Nil
|
Nil
|
|
Permits/
Licenses
|
Nil
|
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.
6.2.1
All 24-hour TSP result was below the
Action and Limit Levels at all monitoring locations in the reporting month.
6.2.2
All 1-hour TSP result was below the Action
and Limit Levels at all monitoring locations in the reporting month.
6.2.3
No noise
complaint was received in the reporting month; hence, no Action Level exceedance was recorded.
6.2.4
No Limit Level exceedance for noise was recorded
at all monitoring stations in the reporting month.
6.3.1
No environmental non-compliance was
recorded in the reporting month.
6.4.1
One (1) complaint (received by 1823 hotline on 30 April
2018) was referred by the Contractor on 11 May 2018. The investigation report
was finalized on 21 May 2018. It is considered that the Contractor has
provided sufficient dust mitigation measures such as watering during breaking
activities and covering stockpiles of dusty materials during the concerned road
works. Cumulative statistics on environmental complaints
is provided in Appendix J.
6.5.1
No environmental related prosecution or notification of
summons was received in the reporting month. Cumulative statistics on
notification of summons and successful prosecutions is provided in Appendix J.
7.1.1
The major construction works between June 2018 and August 2018
is provided in Table 7.1.
Table 7.1 Construction Activities in the coming three month
|
Locations
|
Site Activities
|
|
Kai
Tak
|
·
Pipe piling
·
Sheet piling
·
Hoarding erection
·
U-channel and drainage works
·
Construction of site offices
|
|
Ma
Tau Kok
|
·
Site investigation
·
Site clearance
·
Tree felling
·
Temporary Traffic Management implementation
·
Alternation and temporary reinstatement of road pavements
for Temporary Traffic arrangement stages
·
Installation of monitoring instrument
·
Hoarding erection
·
Existing bus shelter removal
·
Provision of temporary bus shelters
·
Demolition of existing vehicular ramp and booth structure
·
Pile pilling
|
7.2.1
Potential environmental impacts arising
from the above construction activities are mainly associated with construction dust, construction noise, and
waste management.
7.3.1
The tentative schedule for environmental
monitoring in June 2018 is provided in Appendix F.
8.1.1
24-hour TSP and noise monitoring were
carried out in the reporting month.
8.1.2
All 24-hour TSP monitoring results complied
with the Action / Limit Level at in
the reporting month.
8.1.3
All 1-hour TSP result was below the Action
and Limit Levels at all monitoring locations in the reporting month.
8.1.4
No noise complaint was received in the reporting month. Hence, no
Action
Level exceedance was recorded.
8.1.5
No Limit Level exceedance
for noise was recorded
at all monitoring
stations in the reporting month.
8.1.6
5 nos. of environmental site inspections were carried out in May 2018. Recommendations on remedial actions were given to the Contractor
for the deficiencies identified during the site audit.
8.1.7
One (1) complaint (received by 1823 hotline
on 30 April 2018) was referred by the Contractor on 11 May 2018. The investigation report was finalized on 21
May 2018. Referring
to the Contractor's information, no notification of summons and successful
prosecution was received in the reporting month.
8.2.1
According to the environmental site
inspections performed in the reporting month, the following recommendations
were provided:-
Air Quality Impact
· The Contractor was reminded to provide dust
mitigation measures for stockpiles of fill material and exposed surface at
works site; and
· The Contractor was reminded to provide NRMM label for
machinery.
Construction 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
· The Contractor was reminded to provide secondary
containment for chemical containers; and
· The Contractor was reminded to clean up
spillage/leakage of oil.
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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