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Contract No: HK/2015/01 Wanchai
Development Phase II and Central Wanchai Bypass Sampling, Field Measurement and Testing Work (Stage 3) Environmental Permit
no. EP-122/2002/E Monthly
Environmental Monitoring & Audit Report
- April 2019 -
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CLIENTS: |
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Civil Engineering and
Development Department |
Lam Geotechnics Limited 11/F Centre Point 181-185
Gloucester Road, Wanchai, H.K. Telephone:
(852) 2882-3939 Facsimile:
(852) 2882-3331 E-mail:
info@lamenviro.com Website:
http://www.lamenviro.com |
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Certified
by: |
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Raymond
Dai Environmental
Team Leader |
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DATE: |
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9 May 2019 |
2.2 Scope of the Project and Site
Description
2.3 Project Organization and Contact
Personnel
3 status
of regulatory compliance
3.1 Status of Environmental Licensing and
Permitting under the Project
5.2 Air Quality Monitoring Results
5.3 Water Quality Monitoring Results
6.4 Review of the Reasons for and the
Implications of Non-compliance
6.5 Summary of action taken in the event of and
follow-up on non-compliance
7 Cumulative
Construction Impact due to the Concurrent Projects
9 Complaints,
Notification of Summons and Prosecution
lIST OF TABLES
Table 1
Summary of Water Quality Monitoring Exceedances in Reporting Month
Table 2.1 Schedule 2
Designated Projects under this Project
Table 2.2 Contact Details of Key Personnel
Table 3.2 Cumulative Summary of Valid Licences and
Permits under Contract no. HK/2012/08
Table 3.3 Cumulative Summary of Valid Licences and Permits
under Contract no. HK/2010/08
Table 4.1 Continuous Noise Monitoring Stations
Table 4.2 Air Quality Monitoring Stations
Table 4.3 Water Quality
Monitoring Station
Table 4.4 Marine Water
Quality Monitoring Frequency and Parameters
Table 5.1 Continuous Noise Monitoring Stations for
Contract no. HK/2012/08
Table 5.2 Continuous Noise Monitoring Stations for
Contract no. HK/2010/08
Table 5.3 Air Quality Monitoring Station for Contract
no. HK/2012/08
Table 5.4 Air Quality Monitoring Station for Contract
no. HK/2010/08
Table 5.5 Water Quality
Monitoring Station for Contract no. HK/2012/08
Table 5.6 Summary of Water Quality Monitoring Exceedance
in Reporting Month
Table 5.7 Details of Waste
Disposal for Contract no. HK/2012/08
Table 5.8 Details of Waste
Disposal for Contract no. HK/2010/08
Table 9.1 Cumulative Statistics on Complaints
Table 9.2 Cumulative Statistics on Successful Prosecutions
LIST OF FIGURES
Figure
2.1 Project Layout
Figure 2.2 Project Organization Chart
Figure 4.1 Locations of Environmental Monitoring Stations
lIST OF APPENDIces
Appendix 3.1 Environmental Mitigation Implementation Schedule
Appendix 4.1 Action and Limit Level
Appendix 4.2 Copies of Calibration Certificates
Appendix
5.1 Monitoring
Schedule for Reporting Month and Coming month
Appendix 5.2 Continuous Noise Monitoring
Results and Graphical Presentations
Appendix
5.3 Air Quality Monitoring Results and
Graphical Presentations
Appendix 5.4 Water
Quality Monitoring
Results and Graphical Presentations
Appendix 6.1 Event Action Plans
Appendix 6.2 Notification
of Exceedance
Appendix 9.1 Complaint Log
Appendix 10.1 Construction Programme of Individual Contracts
Contract no.
HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central- Wan Chai Bypass at Wan
Chai West
¡P
Roadworks
¡P
Drainage
¡P
Seawall coping
Contract no.
HY/2010/08 ¡V Central- Wan Chai Bypass (CWB) ¡V Tunnel (Slip Road 8)
¡P
Junction modification
Noise Monitoring
Air Quality
Monitoring
Water Quality
Monitoring
xiv.
As confirmed by WDII RSS, the dredging works,
seawall modification works and other associated works undertaken at Central
Reclamation Phase III by Contractor HK/2012/08 was commenced in late September
2014. According to the approved EM&A manual under EP-122/2002/E, water
quality monitoring shall be implemented at the Central Reclamation Phase III
works area accordingly to asses any potential water quality impact during the
construction period.
xv.
Water quality monitoring at M5B and Culvert J
were conducted three days per week during reporting period starting from 26
September 2014. The action and limit level exceedance of water quality
monitoring are summarized in Table 1.
Table
1 Summary of Water Quality Monitoring Exceedances in Reporting
Month
|
Contract No. |
Water quality
monitoring station |
Mid-flood |
Mid-ebb |
||||||
|
DO |
SS |
DO |
SS |
||||||
|
AL |
LL |
AL |
LL |
AL |
LL |
AL |
LL |
||
|
HK/2012/08 |
M5B2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Culvert J1 |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Total |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Remarks1: Action or limit level are not
applicable to reference station Culvert J.
Remarks2:
Turbidity measurement are reported as reference.
Complaints,
Notifications of Summons and Successful Prosecutions
Site Inspections and Audit
Future Key Issues
Contract no. HK/2012/08 ¡V Wan Chai Development
Phase II ¡V Central- Wan Chai Bypass at Wan Chai West
¡P
Roadworks
¡P
Drainage
¡P
Seawall coping
¡P
Dismantling of temporary landing step
Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
¡P
Junction modification
1.1.1.
Lam Geotechnics Limited (LGL) has been appointed take up the role as the
Environmental Team (ET) under Contract HK/2015/01 ¡V Wan Chai Development Phase
II and Central Wan Chai Bypass ¡V Sampling, Field Measurement and Testing works
(Stage 3) to implement the Environmental Monitoring and Audit (EM&A)
programme under Environmental Permit EP-122/2002/E and as stipulated in the
EM&A Manual of the approved Environmental Impact Assessment (EIA) Report
for Central Reclamation Phase III - Studies, Site Investigation, Design and
Construction (Register No.: AEIAR-040/2001) since 27 December 2015.
1.1.2.
This report documents the finding of EM&A
works for Environmental Permit (EP) no.
EP-122/2002/E, during the period of April 2019. The
cut-off date of reporting is the last day of each reporting month.
Section 1 Introduction ¡V details the scope and structure of the report.
Section 2 Project
Background ¡V summarizes background and
scope of the project, site description, project organization and contact
details of key personnel during the reporting period.
Section 3 Status of Regulatory Compliance ¡V summarizes the status of valid Environmental Permits /
Licenses during the reporting period.
Section 4 Monitoring
Requirements ¡V summarizes all monitoring
parameters, monitoring methodology and equipment, monitoring locations,
monitoring frequency, criteria and respective event and action plan and
monitoring programmes.
Section 5 Monitoring
Results ¡V summarizes the monitoring
results obtained in the reporting period.
Section 6 Compliance Audit ¡V summarizes
the auditing of monitoring results, all exceedances environmental
parameters.
Section 7 Cumulative Construction Impact due
to the Concurrent Projects ¡V summarizes the relevant cumulative
construction impact due to the concurrent activities of the concurrent Projects.
Section 8 Environmental Site Audit ¡V summarizes the findings of weekly site inspections
undertaken within the reporting period, with a review of any relevant follow-up actions within the reporting period.
Section 9 Complaints, Notification of
summons and Prosecution ¡V summarizes the cumulative statistics on
complaints, notification of summons and prosecution
Section 10 Conclusion
2.1.1
Central Reclamation Phase III - Studies, Site
Investigation, Design and Construction (hereafter called ¡§the Project¡¨) are Designated
Project (DP) under the Environmental Impact Assessment Ordinance (Cap. 499)
(EIAO). The Environmental Impact Assessment (EIA) Reports for Central
Reclamation Phase III - Studies, Site Investigation, Design and Construction
(Register No. AEIAR-040/2001) has been approved on 31 August 2001.
2.2.1.
The design and construction of Central
Reclamation Phase III involves the permanent reclamation and construction and
operation of a trunk road and its road tunnel that is shown at Figure 2.1.
2.2.2.
The key purpose of the study area encompasses the area of Victoria Harbour to the southeast of
the new Outlying Islands Ferry Piers and north of Edinburgh Place and Lung Wui
Road. The area extends eastward to Fenwick Pier Street and the Fleet Arcade,
and includes the existing GPO, Star Ferry Piers, Queens Pier, City Hall, PLA
Headquarters, Hong Kong Red Cross Headquarters building and the Tamar Site. The scope of the Central Reclamation, Phase III includes:
¡P
Reclamation
and seawalls, roads and associated services, North Island Line Protection Works
and Advance Trunk Road Tunnel (ATRT) for the CWB;
¡P
Reprovisioning
of Star Ferry Pier, public landing steps, wallah wallah moorings, and motor
boat/launch operators' kiosks;
¡P
External
cooling water systems which consist of the cooling water pumping shells for
future developments, and the reprovisioning of existing cooling water pumping
stations and associated pipework systems and E&M works;
¡P
Reprovisioning
of existing Leisure and Cultural Services Department (LCSD)'s facilities;
¡P
Provision
of a flood relief path, stormwater culvert extensions, upgrading of hinterland
stormwater drainage resulting from the reclamation, demolition of the existing
waterfront structures and necessary landscaping;
¡P
The
Hong Kong Station Extended Overrun Tunnel (EOT) and associated ventilation
structures entrusted for construction within the CRIII works;
¡P
Reprovisioning
of the Government Heliport at the Wan Chai PCWA and reprovisioning of the Wan
Chai PCWA at Chai Wan Basin.
2.2.3.
The project also contains various Schedule 2 DPs that, under the EIAO,
require Environmental Permits (EPs) to be granted by the DEP before they may be
either constructed or operated. Table 2.1 summarises the four
individual DPs under this Project. Figure 2.1 shows the locations of these Schedule 2 DPs.
Table
2.1 Schedule 2 Designated
Projects under this Project
|
Item |
Designated Project |
EIAO Reference |
|
DP1
|
Reclamation
works |
Schedule
2, Part I, A.7 |
|
DP2
|
Road
P2 and other roads which are classified as primary/district distributor roads
|
Schedule
2, Part I, A.1 |
|
DP3
|
Central-Wanchai
bypass (CWB) |
Schedule
2, Part I, C.1 |
|
DP4 |
The
North Island Line (NIL) Protection Works within CRIII |
Schedule
2, Part I, A.7 |
2.2.4.
Contract HK/2012/08 ¡V Wan Chai Development
Phase II ¡V Central- Wan Chai Bypass at Wan Chai West as part of the Project
works by the Civil Engineering and Development Department (CEDD) is associated
with Designated Project 1(DP1) and Designated Project (DP2).
2.2.5.
Contract HY/2009/18 ¡V Central Wanchai Bypass
¡V Central Interchange as part of the Project works by the Highways Department
(HyD) is associated with Designated Project 2(DP2). As confirmed with Resident
Site Staff, the construction of P1 Road of DP2 under Contract HY/2009/18 have
been completed on 1 November 2017.
2.2.6.
Contract HY/2010/08 ¡V Central Wanchai Bypass ¡V Tunnel as part of the
Project works by the Highways Department (HyD) is associated with Designated
Project 2 (DP2).
2.3.1
Civil
Engineering and Development Department is the overall project controllers for the Central Reclamation Phase III Project. For
the construction phase of the Project, Project Engineer, Contractor(s),
Environmental Team and Independent Environmental Checker are appointed to
manage and control environmental issues.
2.3.2
The
proposed project organization and lines of communication with respect to
environmental protection works are shown in Figure 2.2. Key personnel and contact particulars
are summarized in Table 2.2:
Table 2.2 Contact Details
of Key Personnel
|
Party |
Role |
Post |
Name |
Contact No. |
Contact Fax |
|
AECOM |
Engineer¡¦s
Representative for WDII |
Chief
Resident Engineer |
Ms.
Gloria Tang |
2587
1778 |
2587 1877 |
|
Engineer¡¦s
Representative for CWB |
Chief
Resident Engineer |
Mr.
Dennis Norton |
3912
3188 |
3912
3010 |
|
|
China
State- Build King JV |
Contractor
under Contract no. HK/2012/08 |
Project Director |
C. N. LAI |
9106 5806 |
2877 1522 |
|
Site Agent |
Mr. George Cheung |
9268 1918 |
|||
|
Environmental Officer |
Mr. James Ma |
9130 9549 |
|||
|
Environmental Supervisor |
Mr. Y. L. HO |
9856 5669 |
|||
|
China
State |
Contractor
under Contract no. HY/2010/08 |
Project Director |
Mr. Chris Leung |
3467 4299 |
2566 8061 |
|
Project Manager |
Mr. Chan Ying Lun |
3418 3001 |
|||
|
Site Agent |
Mr. Thomas Lui |
3557 6452 |
|||
|
Environmental Officer |
Mr. Gabriel Wong |
3557 6466 |
|||
|
Ramboll Hong
Kong
Limited |
Independent Environmental
Checker (IEC) |
Independent Environmental
Checker (IEC) |
Mr. David Yeung |
3465
2888 |
3465
2899 |
|
Lam Geotechnics Limited |
Environmental Team (ET) |
Environmental Team Leader (ETL) |
Mr. Raymond
Dai |
2882 3939 |
2882 3331 |
2.3.3
In
this reporting month, the principal work activities of the contract is included
as follows:
Contract no. HK/2012/08 ¡V Wan Chai Development
Phase II ¡V Central- Wan Chai Bypass at Wan Chai West
¡P
Roadworks
¡P
Drainage
¡P
Seawall coping
Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
¡P
Junction modification
2.3.4
In
coming reporting month, the principal work activities of the contract is
anticipated as follows:
Contract no. HK/2012/08 ¡V Wan Chai Development
Phase II ¡V Central- Wan Chai Bypass at Wan Chai West
¡P
Roadworks
¡P
Drainage
¡P
Seawall coping
¡P
Dismantling of temporary landing steps
Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
¡P
Junction modification
3.1.1.
A summary of the current status on licences and/or permits on
environmental protection pertinent to the Project is shown in Table 3.1.
Table 3.1 Summary
of the current
status on licences and/or permits on environmental protection pertinent to the
Project
|
Permits
and/or Licences |
Reference
No. |
Issued
Date |
Status |
|
Environmental Permit |
EP-122/2002/E |
24 Sep 2015 |
Valid |
3.1.2.
The current status on licences and/or permits on environmental
protection pertinent for Contract no. HK/2012/08 showed in Table 3.2.
Table
3.2 Cumulative Summary of Valid Licences and
Permits under Contract no. HK/2012/08
|
Permits and/or Licences |
Reference No. |
Issued Date |
Valid
Period/ Expiry Date |
Status |
|
Notification
of Works Under APCO |
355439 |
4
Feb 2013 |
N/A |
Valid |
|
Registration
as a Chemical Waste Producer |
5213-134-C3790-01 |
30
Jun 2016 |
N/A |
Valid |
|
Billing
Account under Waste Disposal Ordinance |
7016883 |
18 Feb 2013 |
N/A |
Valid |
|
Billing Account under Waste Disposal
Ordinance (Dumping by Vessel) |
- |
- |
- |
- |
|
Construction
Noise Permit |
GW-RS1247-18 |
31 Dec 2018 |
13 Jan 2019 to 12 Jul 2019 |
Valid |
|
GW-RS0294-19 |
2 Apr 2019 |
5 Apr 2019 to 4 Oct 2019 |
Valid |
|
|
Water Discharge
Licence |
WT00018470-2014 |
6 Mar 2014 |
31 Mar 2019 |
Expired |
3.1.3.
The current status on licences and/or permits on environmental
protection pertinent for Contract no. HY/2010/08 showed in Table 3.3.
Table
3.3 Cumulative Summary of
Valid Licences and Permits under Contract no. HY/2010/08
|
Permits
and/or Licences |
Reference
No. |
Issued
Date |
Valid
Period/ Expiry Date |
Status |
|
Notification of Works Under APCO |
357176 |
2 Apr 2013 |
N/A |
Valid |
|
Registration as a Chemical Waste Producer |
WPN5213-147-C1169-44 |
27 Mar 2013 |
N/A |
Valid |
|
Billing Account under Waste Disposal Ordinance |
7017170 |
27 Mar 2013 |
N/A |
Valid |
|
Billing
Account under Waste Disposal Ordinance (Dumping by Vessel) |
7020947 |
22 Dec 2014 |
N/A |
Valid |
|
Construction
Noise Permit |
GW-RS0243-19 |
22/3/2019 |
25 Mar 2019
to 30 April 2019 |
Expired |
3.1.4.
Implementation status of the recommended mitigation measures during this
reporting month is presented in Appendix 3.1.
NOISE Monitoring Stations
4.1.1.
The continuous noise monitoring station for the Project is listed and
shown in Table 4.1 and Figure 4.1.. Appendix 4.1 shows the established Action/Limit
Levels for the monitoring works.
Table 4.1 Continuous Noise
Monitoring Stations
|
District |
Station |
Description |
|
Central |
ACL3 |
City
Hall |
Noise Monitoring
Parameters, Frequency and Duration
4.1.2.
Continuous 24-hour noise
monitoring shall be carried out at the designated monitoring stations. The
following is an initial guide on the regular monitoring frequency for each
station on a 24 hours daily basis when noise generating activities are
underway:
¡P
One
set of measurements between 0700 and 1900 hours on normal weekdays.
¡P
One
set of measurements between 1900 and 2300 hours on normal weekdays and 0700 and
2300 hours on public holidays.
¡P
One
set of measurements between 2300 and 0700 hours on next day on every day.
4.1.3.
If construction works are extended to include
works during the hours of 1900 ¡V 0700 as well as public holidays and Sundays,
additional weekly impact monitoring shall be carried out during respective
restricted hours periods. Applicable permits under NCO shall be obtained by the
Contractor.
Monitoring Equipment
4.1.4.
As referred to in the Technical Memorandum ™
issued under the NCO, sound level meters in compliance with the International
Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type
1) specifications shall be used for carrying out the noise monitoring.
Immediately prior to and following each noise measurement the accuracy of the
sound level meter shall be checked using an acoustic calibrator generating a
known sound pressure level at a known frequency. Measurements may be accepted
as valid only if the calibration level from before and after the noise
measurement agrees to within 1.0 dB.
4.1.5.
Noise measurements shall not be made in fog,
rain, wind with a steady speed exceeding 5 m/s or wind with gusts exceeding 10
m/s. The wind speed shall be checked with a portable wind speed meter capable
of measuring the wind speed in m/s.
4.1.6.
The sound level meter shall be checked using
an acoustic calibrator generating a known sound pressure level at a known
frequency before deployment to the site and during each site visit.
Measurements will be accepted as valid only if the calibration level from
before and after the noise measurement agrees to within 1.0 dB.
Air Quality Monitoring
Stations
4.2.1. The air
quality monitoring stations for the Project are listed and shown in Table
4.2 and Figure 4.1. Appendix 4.1 shows the
established Action/Limit Levels for the monitoring works.
Table 4.2 Air Quality Monitoring Stations
|
Station ID |
Description |
|
ACL1 |
City Hall |
|
ACL2a |
Contractor HK/2012/08 Site Office |
Air QUALITY Monitoring
Parameters, Frequency and Duration
4.2.2. One-hour
and 24-hour TSP levels should be measured to indicate the impacts of
construction dust on air quality. The 24-hour TSP levels shall be measured by
following the standard high volume sampling method as set out in the Title 40
of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.
4.2.3. All
relevant data including temperature, pressure, weather conditions, elapsed-time
meter reading for the start and stop of the sampler, identification and weight
of the filter paper, and any other local atmospheric factors affecting or
affected by site conditions, etc., shall be recorded down in detail.
4.2.4. For
regular impact monitoring, the sampling frequency of at least once in every
six-days, shall be strictly observed at all the monitoring stations for 24-hour
TSP monitoring. For 1-hour TSP monitoring, the sampling frequency of at least
three times in every six-days should be undertaken when the highest dust impact
occurs.
Sampling Procedure and
Monitoring Equipment
4.2.5. High
volume samplers (HVSs) in compliance with the following specifications shall be
used for carrying out the 1-hour and 24-hour TSP monitoring:
¡P
0.6
¡V 1.7 m3 per minute adjustable flow range;
¡P
Equipped
with a timing / control device with +/- 5 minutes accuracy for 24 hours
operation;
¡P
Installed
with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
¡P
Capable
of providing a minimum exposed area of 406 cm2;
¡P
Flow
control accuracy: +/- 2.5% deviation over 24-hour sampling period;
¡P
Equipped
with a shelter to protect the filter and sampler;
¡P
Incorporated
with an electronic mass flow rate controller or other equivalent devices;
¡P
Equipped
with a flow recorder for continuous monitoring;
¡P
Provided
with a peaked roof inlet;
¡P
Incorporated
with a manometer;
¡P
Able
to hold and seal the filter paper to the sampler housing at horizontal
position;
¡P
Easily
changeable filter; and
¡P
Capable
of operating continuously for a 24-hour period.
4.2.6. Initial
calibration of dust monitoring equipment shall be conducted upon installation
and thereafter at bi-monthly intervals. The transfer standard shall be
traceable to the internationally recognized primary standard and be calibrated
annually. The concern parties such as IEC shall properly document the
calibration data for future reference. All the data should be converted into
standard temperature and pressure condition.
Laboratory Measurement /
Analysis
4.2.7. A clean
laboratory with constant temperature and humidity control, and equipped with
necessary measuring and conditioning instruments to handle the dust samples
collected, shall be available for sample analysis, and equipment calibration
and maintenance. The laboratory should be HOKLAS accredited.
4.2.8. Filter
paper of size 8¡¨ x 10¡¨ shall be labelled before sampling. It shall be a clean
filter paper with no pinholes, and shall be conditioned in a
humidity-controlled chamber for over 24-hours and be pre-weighed before use for
the sampling.
4.2.9. After
sampling, the filter paper loaded with dust shall be kept in a clean and
tightly sealed plastic bag. The filter paper shall then be returned to the
laboratory for reconditioning in the humidity controlled chamber followed by
accurate weighing by an electronic balance with readout down to 0.1 mg. The
balance shall be regularly calibrated against a traceable standard.
4.2.10. All the
collected samples shall be kept in a good condition for 6 months before
disposal.
4.2.11. Current
calibration certificates of equipment are presented in Appendix 4.2.
WATER Quality Monitoring
Stations
4.3.1 The water
quality monitoring stations for the Project are listed and shown in Table
4.3 and Figure 4.1. Appendix 4.1 shows the
established Action/Limit Levels for the monitoring works.
Table
4.3 Water Quality Monitoring Stations
|
Station ID |
Description |
Easting |
Northing |
|
Cooling Water Intakes |
|||
|
M5B |
Swire / Government
Headquarters/ Tamar Development/ MTRCL and HSBC Headquarters |
835169 |
816052 |
|
Culverts (Reference Station) |
|||
|
Culvert J |
Culvert J Outfall Location |
835082 |
816071 |
Water Quality Parameters
4.3.2. Monitoring
of dissolved oxygen (DO), turbidity and suspended solids (SS) shall be carried
out at WSD flushing water intakes and cooling water intakes. DO and Turbidity
are measured in-situ while SS is determined in laboratory.
4.3.3. In
association with the water quality parameters, other relevant data shall also
be measured, such as monitoring location/position, time, sampling depth, water
temperature, pH, salinity, dissolved oxygen (DO) saturation, weather
conditions, sea conditions, tidal stage, and any special phenomena and work
underway at the construction site etc.
Sampling Procedures and
Monitoring Equipment
4.3.4. The
interval between two sets of monitoring should not be less than 36 hours except
where there are exceedances of Action and/or Limit Levels, in which case the
monitoring frequency will be increased. Table 4.4 shows the
proposed monitoring frequency and water quality parameters. Duplicate in-situ
measurements and water sampling should be carried out in each sampling event.
For selection of tides for in-situ measurement and water sampling, tidal range
of individual flood and ebb tides should be not less than 0.5m.
Table 4.4 Marine Water Quality Monitoring
Frequency and Parameters
|
Activities |
Monitoring
Frequency1 |
Parameters2 |
|
During the 4-week
baseline monitoring period |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
During marine construction works |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
After completion of marine construction works |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
Notes:
1.
For selection of tides for in-situ measurement
and water sampling, tidal range of individual flood and ebb tides should be not
less than 0.5m.
2.
Turbidity should be measured in situ whereas SS
should be determined by laboratory.
Dissolved Oxygen and
Temperature Measuring Equipment
4.3.5.
The instrument should be a portable, weatherproof
dissolved oxygen measuring instrument complete with cable, sensor,
comprehensive operation manuals, and use a DC power source. It should be
capable of measuring:
¡P
a
dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation
¡P
a
temperature of 0-45 degree Celsius
4.3.6.
It should have 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.
(e.g. YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer with
reel and cable or an approved similar instrument).
4.3.7.
Should salinity compensation not be build-in in the
DO equipment, in-situ salinity shall be measured to calibrate the DO equipment
prior to each DO measurement.
Turbidity Measurement
Instrument
4.3.8.
The instrument should be a portable, weatherproof
turbidity-measuring instrument complete with comprehensive operation manual.
The equipment should use a DC power source. It should have a photoelectric sensor
capable of measuring turbidity between 0‑1000 NTU and be complete with a cable
(e.g. Hach model 2100P or an approved similar instrument).
Sampler
4.3.9.
A water sampler comprises a transparent PVC
cylinder, with a capacity of not less than 2 litres, and can be effectively
sealed with latex cups at both ends. The sampler should 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 (e.g. Kahlsico
Water Sampler or an approved similar instrument).
Sample Container and
Storage
4.3.10.
Water samples for suspended solids measurement
should be collected in high-density polythene bottles, packed in ice (cooled to
4¢XC without being frozen), and delivered to ALS Technichem (HK) Pty Ltd. as
soon as possible after collection for analysis.
Water Depth Detector
4.3.11.
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 handheld or affixed to the bottom of the
workboat, if the same vessel is to be used throughout the monitoring programme.
Salinity
4.3.12.
A portable salinometer capable of measuring
salinity in the range of 0-40 ppt shall be provided for measuring salinity of
the water at each of monitoring location.
Monitoring Position
Equipment
4.3.13.
A hand-held or boat-fixed type digital Global
Positioning System (GPS) with waypoint bearing indication or other equivalent
instrument of similar accuracy shall be provided and used during monitoring to
ensure the monitoring vessel is at the correct location before taking
measurements.
Calibration of In-situ
Instruments
4.3.14.
All in-situ monitoring instrument shall be checked,
calibrated and certified by a laboratory accredited under HOKLAS or equivalent
before use, and subsequently re-calibrated at 3 monthly intervals throughout
all stages of the water quality monitoring. Responses of sensors and electrodes
should be checked with certified standard solutions before each use. Wet bulb
calibration for a DO meter shall be carried out before measurement at each
monitoring location.
4.3.15.
For the on site calibration of field equipment by
the ET, the BS 127:1993, "Guide to Field and on-site test methods for the
analysis of waters" should be observed.
4.3.16.
Sufficient stocks of spare parts should 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.
4.3.17.
Current calibration certificates of equipment are
presented in Appendix 4.2.
Laboratory Measurement /
Analysis
4.3.18.
Analysis of suspended solids has been carried out
in a HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd. Water samples
of about 1L shall be collected at the monitoring stations for carrying out the
laboratory SS determination. The SS determination work shall start within 24
hours after collection of the water samples. The SS determination shall follow
APHA 19ed or equivalent methods subject to the approval of IEC and EPD.
5.0.1. The
environmental monitoring will be implemented based on the division of works
areas of each designated project managed under different contracts with
separate FEP applied by individual contractors. Overall layout showing work areas of
various contracts, latest status of work commencement and monitoring stations
is shown in Figure 2.1 and Figure 4.1. The
monitoring results are presented in according to the Individual Contract(s).
5.0.2. In the
reporting month, the concurrent contracts are:
Ÿ Contract
no. HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central ¡V Wan Chai Bypass at Wan Chai West.
Ÿ Contract
no. HY/2010/08 ¡V Central- Wan Chai Bypass (CWB) ¡V Tunnel (Slip Road 8)
5.0.3. The
environment monitoring schedules for reporting month and coming month are
presented in Appendix 5.1.
5.1.1
Due to safety concerned, the location of the continuous noise monitoring
station at City Hall was finely adjusted to the roof of the City Hall, Low
Block on 1 May 2013.
Contract no. HK/2012/08 ¡V Wan Chai
Development Phase II ¡V Central ¡V Wan Chai Bypass at Wan Chai
West
5.1.2
The proposed division of noise monitoring
stations is summarized in Table 5.1 below.
Table 5.1 Continuous Noise Monitoring Stations for Contract no. HK/2012/08
|
Location
ID |
District |
Description |
|
ACL3 |
Central |
City Hall |
Remarks: Continuous noise monitoring results
and graphical presentation for ACL3 during restricted hours and night time
period are for information only.
5.1.3
Limit level exceedances were recorded on 27
April 2019 in the reporting period.
After the investigation, no construction works was conducted by
Contractor HK/2012/08 at CRIII area on 27 April 2019. Meanwhile, public event
was held at area opposite to the monitoring station during the concerned period
and considered as the major noise contribution. As such, the exceedance was
considered as non-project related.
Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
5.1.4
As confirmed with CWB RSS, junction modification works in Central area
would be conducted by Contract HY/2010/08 starting from July 2018 and
tentatively completed in September 2018. The continuous noise monitoring
station ACL3 located at City Hall would tentatively associated with Contract
HY/2010/08.
5.1.5
The proposed division of noise monitoring stations is summarized in Table
5.2 below.
Table 5.2 Continuous Noise Monitoring Stations for Contract
no. HY/2010/08
|
Location
ID |
District |
Description |
|
ACL3 |
Central |
City Hall |
Remarks: Continuous noise monitoring results
and graphical presentation for ACL3 during restricted hours and night time
period are for information only.
5.1.6
Limit level exceedances were recorded on 27
April 2019 in the reporting period.
After the investigation, only shrub planting was conducted by Contractor
HY/2010/08 at J3 in CRIII area on 27 April 2019. Meanwhile, public event was
held at area opposite to the monitoring station during the concerned period and
considered as the major noise contribution. As such, the exceedance was
considered as non-project related.
5.1.7
Continuous noise monitoring results measured in this reporting period
are reviewed and summarized. Details of continuous noise monitoring results and
graphical presentation can be referred to Appendix
5.2.
5.2.1 Due to the
defective electricity supply found at monitoring station ACL1 and the advice
from City Hall Building Management, the air quality monitoring station ACL1 ¡V
City Hall was finely adjusted on 28 Feb 2014 to an alternate electricity
supply.
5.2.2 Due to the
large scale renovation works at People¡¦s Liberation Army Headquarter, a
Proposal for Relocation of Air Quality Monitoring Station at People¡¦s
Liberation Army Headquarter (ACL2) was formally submitted to EPD on 4th
November, 2013.
5.2.3 The Proposal for
Relocation of Air Quality Monitoring Station at People¡¦s Liberation Army
Headquarter (ACL2) was approved by EPD on 27 November 2013.
5.2.4 According to
the approved proposal for relocation of Air Quality Monitoring station, the
action and limit levels of ACL2a shall adopt the reference monitoring result
from the baseline air monitoring report for EP/364/2009 in 22 April 2010 in
which approved by EPD.
5.2.5 The air quality
monitoring at ACL2a ¡V Contractor HK/2012/08 Site Office was commenced on 7
December 2013.
Contract no. HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central ¡V Wan
Chai Bypass at Wan Chai West
5.2.6 The
proposed division of air quality monitoring stations are summarized in Table
5.3 below.
Table 5.3
Air
Quality Monitoring Station for Contract no. HK/2012/08
|
Station |
Description |
|
ACL1 |
City
Hall |
|
ACL2a |
Contractor HK/2012/08 Site Office |
5.2.7 No action or
limit level exceedance was recorded at ACL1 ¡V City Hall and ACL2a ¡V Contractor
HK/2012/08 Site Office in the reporting month.
Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
5.2.8 As
confirmed with CWB RSS, junction modification works in Central area would be
conducted by Contract HY/2010/08 starting from July 2018 and tentatively
completed in September 2018. The air quality monitoring station ACL1 located at
City Hall would tentatively associated with Contract HY/2010/08.
5.2.9 The
proposed division of air quality monitoring stations are summarized in Table
5.4 below.
Table 5.4 Air Quality Monitoring Station
for Contract no. HY/2010/08
|
Station |
Description |
|
ACL1 |
City
Hall |
5.2.10 No action or
limit level exceedance was recorded at ACL1 ¡V City Hall in the reporting month.
5.2.11 The air
quality monitoring results measured in this reporting period are reviewed and
summarized. Details of air quality
monitoring results and graphical presentation can be referred in Appendix 5.3.
Contract no. HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central ¡V Wan
Chai Bypass at
Wan Chai West
5.3.1 The
proposed division of water quality monitoring stations are summarized in Table
5.5 below.
Table 5.5 Water Quality Monitoring Station
for Contract no. HK/2012/08
|
Station ID |
Description |
||
|
Cooling
Water Intakes |
|
||
|
M5B |
Swire / Government
Headquarters/ Tamar Development/ MTRCL and HSBC Headquarters |
||
|
Culverts (Reference Station) |
|
||
|
Culvert J |
Culvert
J Outfall Location |
||
5.3.2
Water quality monitoring results measured in
this reporting period are reviewed and summarized. Detail of water quality
monitoring results and graphical presentation can be referred in Table
5.6 and Appendix 5.4
5.3.3
No action or limit level exceedance was recorded in this reporting
period.
5.3.4
Due to the hoisting of Amber Rainstorm Warning Signal, the water quality
monitoring event scheduled on 19 April 2019 during flood tide was cancelled.
Table 5.6 Summary of Water Quality Monitoring
Exceedance in Reporting Month
|
Contract No. |
Water quality
monitoring station |
Mid-flood |
Mid-ebb |
||||||
|
DO |
SS |
DO |
SS |
||||||
|
AL |
LL |
AL |
LL |
AL |
LL |
AL |
LL |
||
|
HK/2012/08 |
M5B2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Culvert J1 |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Total |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Remarks1: Action or limit level are not
applicable to reference station Culvert J.
Remarks2: Turbidity measurement are reported as reference.
Contract no. HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central ¡V Wan
Chai Bypass at Wan Chai West
5.4.1 No inert
and non-inert C&D wastes were disposed in this reporting month. Details of
the waste flow table are summarized in Table
5.7
Table 5.7 Details
of Waste Disposal for Contract no. HK/2012/08
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
NIL NIL |
8005 51779 |
TM38 TKO137 |
|
Inert C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Non-inert C&D materials disposed, m3 |
NIL |
1925 |
SENT Landfill |
|
Non-inert C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Chemical waste disposed, kg |
NIL |
NIL |
NIL |
|
Marine Sediment (Type 1 ¡V Open Sea Disposal), m3 |
0 (Bulk volume) |
0 (Bulk volume) |
South of Cheung Chau |
|
Marine Sediment (Type 2) , m3 |
0 (Bulk volume) |
0 (Bulk volume) |
South of The Brothers |
Contract no. HY/2010/08 ¡V Central- Wan Chai
Bypass (CWB) ¡V Tunnel (Slip Road 8)
5.4.2 No inert
and non-inert C&D wastes were disposed in this reporting month. Details of
the waste flow table are summarized in Table 5.8
Table 5.8 Details of
Waste Disposal for Contract no. HY/2010/08
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
NIL |
NIL |
NIL |
|
Inert C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Non-inert C&D materials disposed, m3 |
NIL |
NIL |
NIL |
|
Non-inert C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Chemical waste disposed, kg |
NIL |
NIL |
NIL |
6.0.1 The Event
Action Plan for construction noise, air and water quality are presented in Appendix 6.1.
Contract no. HK/2012/08 ¡V
Wan Chai Development Phase II ¡V Central ¡V Wan Chai Bypass
at Wan Chai West
6.1.1. Limit level
exceedances were recorded on 27 April 2019 in the reporting period. After
investigation, the exceedances were not related to Project.
Contract Contract no. HY/2010/08 ¡V Central- Wan Chai Bypass
(CWB) ¡V Tunnel (Slip Road 8)
6.1.2 Limit level
exceedances were recorded on 27 April 2019 in the reporting period. After
investigation, the exceedances were not related to Project.
Contract no. HK/2012/08 ¡V Wan Chai Development Phase II ¡V Central ¡V Wan
Chai Bypass at Wan Chai West
Contract Contract no.
HY/2010/08 ¡V Central- Wan Chai Bypass (CWB) ¡V Tunnel (Slip Road 8)
Contract no. HK/2012/08 ¡V Wan Chai Development
Phase II ¡V Central ¡V Wan Chai Bypass at Wan Chai West
6.4.1 There was
no non-compliance from the site audits in the reporting period. The
observations and recommendations made in each individual site audit session
were presented in Section 8.
6.5.1 There was
no particular action taken since no non-compliance was recorded from the site
audits in the reporting period.
7.0.1. This
section addresses the relevant cumulative construction impact due to the
concurrent activities of the current projects including the Central Reclamation
Phase III (CRIII), Wan Chai Development Phase II (WDII), Central-WanChai Bypass
(CWB), Island Eastern Corridor Link projects (IECL) and Wan Chai Development
Phase II ¡V Central ¡V Wan Chai Bypass at Wan Chai East (CWB Tunnel).
7.0.2.
According
to the Final EM&A report of Central Reclamation Phase III (CRIII) for
Contract HK 12/02, the major construction activities were completed by end of
January 2014 and no construction activities were undertaken thereafter and the
water quality monitoring was completed in October 2011. As such, it is considered that there
were no cumulative construction impact due to the concurrent activities of the
current projects with the Central Reclamation Phase III (CRIII) undertaken by
contractor HK12/02 in the reporting month.
7.0.3. According to the
construction programme of Central-Wanchai Bypass at Wanchai West at the Central
Reclamation Phase III area include roadworks, drainage, seawall coping and
junction modification were performed in April 2019 reporting period. As no project
related exceedance were recorded during the reporting period, cumulative
construction impact due to the concurrent activities of the current projects
with the Central Reclamation Phase III (CRIII) was considered as insignificant.
7.0.4.
According to the construction programme of Wan Chai Development Phase
II, Central-Wan Chai Bypass and Island Eastern Corridor Link projects, the
major construction activities under Wan Chai Development Phase II were road and
drains construction and TWCR4 reinstatement at Wan Chai. The major construction
activities under Central-Wan Chai Bypass and Island Eastern Corridor Link
Projects were ventilation building ABWF works and junction modification at
Central; road works, drainage improvement work, utility diversion works and
landscape works at Victoria Park; bridge noise enclosure installation works,
road works, drainage works, soft landscape works and ventilation building ABWF
work at North Point area in the reporting period. In addition, other non-Wan
Chai Development Phase II, Central-Wan Chai Bypass and Island Eastern Corridor
Link projects were observed undertaken at Wan Chai North and North Point area.
7.0.5. No significant air impact from construction activities was anticipated
in the reporting month. Besides, no project related exceedance was recorded
during the water, air and noise environmental monitoring events in the
reporting month. Thus, it is evaluated that the cumulative construction impact
from the concurrent projects including Central Reclamation Phase III (CRIII),
Wan Chai Development Phase II (WDII), Central-WanChai Bypass (CWB), Island
Eastern Corridor Link projects (IECL) was insignificant.
8.1.1 During this reporting month, five weekly site inspections were carried out on 2, 9, 16, 23 and
30 April 2019 for Contract no. HK/2012/08. No observation was found during the reporting month.
8.1.2 During this
reporting month, four weekly site inspections were carried out on 4, 10, 17 and 24
April 2019 for Contract no. HY/2010/08. No observation was found during the reporting
month.
9.1.1 No environmental complaint was received
in this reporting month.
9.1.2 The details of cumulative
complaint log and updated summary of complaints are presented in Appendix 9.1
9.1.3 Cumulative
statistic on complaints and successful prosecutions are summarized in Table
9.1 and Table 9.2 respectively.
Table 9.1 Cumulative
Statistics on Complaints
|
Reporting
Period |
No.
of Complaints |
|
July 2013 ¡V March 2019 |
5 |
|
April 2019 |
0 |
|
Total |
5 |
Table 9.2 Cumulative
Statistics on Successful Prosecutions
|
Environmental
Parameters |
Cumulative
No. Brought Forward |
No.
of Successful Prosecutions this month (Offence Date) |
Cumulative
No. Project-to-Date |
|
Air |
0 |
0 |
0 |
|
Noise |
0 |
0 |
0 |
|
Water |
0 |
0 |
0 |
|
Waste |
0 |
0 |
0 |
|
Total |
0 |
0 |
0 |
10.0.1.
The EM&A programme was carried out in
accordance with the EM&A Manual requirements, minor alterations to the
programme proposed were made in response to changing circumstances.
10.0.2.
The scheduled construction activities and the
recommended mitigation measures for the coming month are listed in Table
10.1. The construction programmes of individual contracts are provided
in Appendix 10.1.
Table
10.1 Summary of Key Construction Activities of Individual Contract(s) to be commenced
in Coming Reporting Month
|
Contract No. |
Key Construction
Works |
Recommended Mitigation Measures |
|
HK/2012/08 |
¡P
Roadworks ¡P
Drainage ¡P
Seawall coping ¡P
Dismantling of temporary landing steps |
¡P
Dust control during dust generating works; ¡P
Implementation of proper noise pollution
control; and ¡P
Provision of protection to ensure no
runoff out of site area or direct discharge into public drainage system. |
|
HY/2010/08 |
¡P
Junction modification |
¡P
Dust control during dust generating works ¡P
Implementation of proper noise pollution
control; and ¡P
Provision of protection to ensure no
runoff out of site area or direct discharge into public drainage system. |