|
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
- February 2017 -
|
|
CLIENTS: |
|
|
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 |
|
|
|
|
|
|
|
|
Certified by: |
|
|
Raymond Dai Environmental Team Leader |
|
|
DATE: |
|
|
9 March 2017 |
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 Impacts 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. HY/2009/18
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 and HY/2009/18
Table 5.2 Air Quality
Monitoring Station for Contract no. HK/2012/08
Table
5.3 Air
Quality Monitoring Station for Contract no. HY/2009/18
Table
5.4 Water
Quality Monitoring Station for Contract no. HK/2012/08
Table 5.5 Summary of
Water Quality Monitoring Exceedance in Reporting Month
Table
5.6 Details
of Waste Disposal for Contract no. HK/2012/08
Table
5.7 Details
of Waste Disposal for Contract no, HY/2009/18
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 – Wan Chai Development Phase II – Central- Wan
Chai Bypass at Wan Chai West
·
Roadworks
·
Back-filling at tunnel
·
Reinstatement of culvert K
Contract no. HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central
Interchange
·
Nil
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 |
1 |
1 |
0 |
0 |
0 |
0 |
|
Culvert J1 |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Total |
0 |
0 |
1 |
1 |
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 – Wan Chai Development Phase II – Central- Wan Chai Bypass at Wan
Chai West
·
Roadworks
·
Back-filling at tunnel
·
Reinstatement of culvert K
·
Reinstatement of cooling mains
Contract no. HY/2009/18
– Central – Wan Chai Bypass (CWB) – Central Interchange
·
NIL
1.1.1.
Lam Geotechnics Limited (LGL) has been appointed
take up the role as the Environmental Team (ET) under Contract HK/2015/01 – Wan
Chai Development Phase II and Central Wan Chai Bypass – 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 February 2017. The cut-off date of reporting is the last day of each
reporting month.
Section 1 Introduction – details the scope and structure of the
report.
Section 2 Project
Background – 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 – summarizes the status of valid Environmental Permits / Licenses
during the reporting period.
Section 4 Monitoring
Requirements – 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 – summarizes
the monitoring results obtained in the reporting period.
Section 6 Compliance Audit – summarizes the auditing of monitoring results, all
exceedances environmental parameters.
Section 7 Cumulative
Construction Impact due to the Concurrent Projects – summarizes the
relevant cumulative construction impact due to the concurrent activities of the
concurrent Projects.
Section 8 Environmental Site
Audit – 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 – 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:
·
Reclamation and seawalls, roads and
associated services, North Island Line Protection Works and Advance Trunk Road
Tunnel (ATRT) for the CWB;
·
Reprovisioning of Star Ferry Pier, public
landing steps, wallah wallah moorings, and motor boat/launch operators' kiosks;
·
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;
·
Reprovisioning of existing Leisure and
Cultural Services Department (LCSD)'s facilities;
·
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;
·
The Hong Kong Station Extended Overrun Tunnel
(EOT) and associated ventilation structures entrusted for construction within
the CRIII works;
·
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 –
Wan Chai Development Phase II – 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 –Central
– Wan Chai Bypass (CWB) – Central Interchange as part of the Project works by
the Highways Department is associated with Designated Project (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 |
Principal Resident Engineer |
Mr. Frankie Fan |
2587 1778 |
2587 1877 |
|
Engineer’s Representative for CWB |
Principal Resident Engineer |
Mr. Peter Poon |
3922 3388 |
3912 3010 |
|
|
China State- Build King JV |
Contractor under Contract no. HK/2012/08 |
Project Director |
C. N. LAI |
9106 5806 |
2877 1522 |
|
Project Manager |
Mr. Eddie Chung |
9189 8118 |
|||
|
Site Agent |
Mr. Keith Tse |
9037 1839 |
|||
|
Environmental Officer |
Mr. James Ma |
9130 9549 |
|||
|
Environmental Supervisor |
Mr. Y. L. HO |
9856 5669 |
|||
|
Leighton Contractor (Asia) Limited |
Contractor under Contract no. HY/2009/18 |
Site Agent |
Mr. Jimmy Chu |
3973 0803 |
2140 6799 |
|
Environmental Office |
Mr. Chris Chan |
3973 0885 |
|||
|
Environmental Supervisor |
Ms. Christy So |
3973 1065 |
|||
|
RAMBOLL ENVIRON 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 – Wan Chai Development Phase II – Central- Wan Chai Bypass at Wan
Chai West
·
Roadworks
·
Back-filling at tunnel
·
Reinstatement of culvert K
Contract no.
HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central Interchange
·
NIL
2.3.4
In coming reporting month, the principal work
activities of the contract is anticipated as follows:
Contract no.
HK/2012/08 – Wan Chai Development Phase II – Central- Wan Chai Bypass at Wan
Chai West
·
Roadworks
·
Back-filling at tunnel
·
Reinstatement of culvert K
·
Reinstatement of cooling mains
Contract no.
HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central Interchange
·
NIL
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/D |
1 Sep 2009 |
Superseded |
|
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 |
18 Jul 2017 |
Valid |
|
Billing Account under Waste Disposal
Ordinance (Dumping by Vessel) |
- |
- |
- |
- |
|
Construction
Noise Permit |
GW-RS1332-16 |
29 Dec 2016 |
13 Jan 2017 to
12 Jul 2017 |
Valid |
|
Construction
Noise Permit |
GW-RS1340-16 |
23 Dec 2016 |
13 Jan 2017 to
12 Jul 2017 |
Valid |
|
Water Discharge
Licence |
WT00018470-2014 |
6 Mar 2014 |
31 Mar 2019 |
Valid |
|
Dumping Permit
(Type 1- Open Sea Disposal) |
EP/MD/17-159 |
6 Feb 2017 |
8 Feb 2017 to 30
Jun 2017 |
Valid |
|
Dumping Permit
(Type 2- Confined Marine Disposal) |
- |
- |
- |
- |
3.1.3.
The current status on licences and/or permits on
environmental protection pertinent for Contract no. HY/2009/18 showed in Table
3.3.
Table 3.3 Cumulative Summary of Valid Licences and
Permits under Contract no. HY/2009/18
|
Permits and/or Licences |
Reference No. |
Issued Date |
Valid Period/ Expiry Date |
Status |
|
Notification of Works Under APCO |
322293 |
07 Oct 2010 |
Notified |
Valid |
|
Construction Noise Permit (CNP) for
non-piling equipment |
GW-RS1338-16 |
28 Dec 2016 |
1 Jan 2017- 30 Jun 2017 |
Valid |
|
Registration as
a Chemical Waste Producer |
N/A |
N/A |
N/A |
N/A |
|
Dumping Permit
(Type 1- Open Sea Disposal) |
N/A |
N/A |
N/A |
N/A |
|
Dumping Permit
(Type 1 – Open Sea Disposal (Dedicate Sites) & Type 2 – Confined Marine
Disposal) |
N/A |
N/A |
N/A |
N/A |
|
Dumping Permit (Type 2- Confined Marine Disposal) |
N/A |
N/A |
N/A |
N/A |
|
Approval of Tree
Survey Report |
N/A |
N/A |
N/A |
N/A |
|
Approval of
Coral Translocation Report |
N/A |
N/A |
N/A |
N/A |
|
Billing Account
under Waste Disposal Ordinance (Land) |
Account No.: 7011587 |
11 Oct 2010 |
Account approved |
Valid |
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:
·
One set of measurements between 0700 and 1900
hours on normal weekdays.
·
One set of measurements between 1900 and 2300
hours on normal weekdays and 0700 and 2300 hours on public holidays.
·
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 – 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:
·
0.6 – 1.7 m3 per minute adjustable
flow range;
·
Equipped with a timing / control device with
+/- 5 minutes accuracy for 24 hours operation;
·
Installed with elapsed-time meter with +/- 2
minutes accuracy for 24 hours operation;
·
Capable of providing a minimum exposed area
of 406 cm2;
·
Flow control accuracy: +/- 2.5% deviation over
24-hour sampling period;
·
Equipped with a shelter to protect the filter
and sampler;
·
Incorporated with an electronic mass flow
rate controller or other equivalent devices;
·
Equipped with a flow recorder for continuous
monitoring;
·
Provided with a peaked roof inlet;
·
Incorporated with a manometer;
·
Able to hold and seal the filter paper to the
sampler housing at horizontal position;
·
Easily changeable filter; and
·
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:
·
a dissolved oxygen level in the range of 0-20
mg/l and 0-200% saturation
·
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°C 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 equipments 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 – Wan Chai Development Phase II – Central – Wan
Chai Bypass at Wan Chai West.
Ÿ Contract no. HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central
Interchange
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 – Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan
Chai West and Contract no. HY/2009/18 – Central – Wan Chai Bypass (CWB) –
Central Interchange
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 and Contract no. HY/2009/18
|
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 at ACL3 – City Hall on 25 February 2017 during daytime in the
reporting period.
5.1.4
After checking with Contractor, general
formwork and rebar fixing were conducted by Contractor HK/2012/08 at CRIII
works area and no construction activities was conducted by Contractor HY/2009/18
at P1 Road on 25 February 2017 while music event was held at area opposite to
the monitoring station during the concerned period and was considered as the
major noise contribution. As such, the exceedance was considered as non-project
related.
5.1.5
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 – 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 – Contractor HK/2012/08 Site Office
was commenced on 7 December 2013.
Contract
no. HK/2012/08 – Wan Chai Development Phase II – Central – Wan Chai Bypass at
Wan Chai West
5.2.6 The proposed division of air quality monitoring stations are summarized
in Table 5.2 below.
Table 5.2 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 in the reporting month.
5.2.8 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. HY/2009/18 – Central – Wan Chai
Bypass (CWB) – Central Interchange
5.2.9 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. HY/2009/18
|
Station |
Description |
|
ACL1 |
City Hall |
5.2.10 No action or limit level exceedance was recorded 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 – Wan Chai
Development Phase II – Central – Wan Chai Bypass at
Wan
Chai West
5.3.1 The proposed division of water quality monitoring stations are
summarized in Table 5.4 below.
Table 5.4 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 5.5 and Appendix 5.4
5.3.3 One limit level exceedance of suspended solids was recorded on 2
February 2017 during flood tide and one action level exceedance of suspended
solid was recorded on 4 February 2017 during flood tide in the reporting month.
After the investigation, the exceedance was concluded as non-project related.
5.3.4 Despite trimming of rock mound profile was conducted under Contract
HK/2012/08 on the 2 February 2017, Contractor mitigation measure including the
use of silt curtain was in place while elevated turbidity level was recorded at
nearby culvert discharge (22.32NTU). Hence, it is considered the exceedance is
potentially contributed by nearby culvert discharge affecting the water quality
next to the monitoring station M5B and the exceedance was considered not
related to Project. No exceedance was recorded on the subsequent monitoring on
2 February 2017 ebb tide.
5.3.5 No marine construction activity was conducted under Contract HK/2012/08
on 4 February 2017. In view of no marine construction activity conducted, it
was considered that the exceedance was not related to Project. No exceedance
was recorded on the subsequent monitoring on 4 February 2017 ebb tide.
Table 5.5 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 |
1 |
1 |
0 |
0 |
0 |
0 |
|
Culvert J1 |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Total |
0 |
0 |
1 |
1 |
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 – Wan Chai
Development Phase II – Central – Wan Chai Bypass at Wan Chai West
5.4.1 Inert and non-inert C&D wastes were disposed in this reporting
month. Details of the waste flow table are summarized in Table 5.6
Table 5.6 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 |
0 42 |
7648 49931 |
TM38 TKO137 |
|
Inert C&D
materials recycled, m3 |
NIL |
NIL |
NIL |
|
Non-inert
C&D materials disposed, m3 |
30 |
1875 |
SENT Landfill |
|
Non-inert
C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Chemical waste
disposed, kg |
NIL |
NIL |
NIL |
|
Marine Sediment (Type 1 – 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 |
Contractor no. HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central
Interchange
5.4.2 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. HY/2009/18
|
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 – Wan Chai Development Phase II – Central – Wan
Chai Bypass at Wan Chai West
6.1.1 Limit level exceedances were recorded at ACL3 – City Hall on 25 February
2017 during daytime in the reporting period. After the investigation, the
exceedance was concluded as no-project related.
Contract no. HY/2009/18 – Central – Wan Chai
Bypass (CWB) – Central Interchange
6.1.2 Limit level
exceedances were recorded at ACL3 – City Hall on 25 February 2017 during
daytime in the reporting period. After the investigation, the exceedances were
concluded as no-project related.
Contract no. HK/2012/08 – Wan Chai
Development Phase II – Central – Wan Chai Bypass at Wan Chai West
6.2.1.
No action or limit
level exceedance was recorded in the reporting month.
Contract
no. HY/2009/18 – Central – Wan Chai Bypass (CWB) – Central Interchange
6.2.2.
No action or limit
level exceedance was recorded in the reporting month.
Contract no. HK/2012/08 – Wan Chai
Development Phase II – Central – Wan Chai Bypass at Wan Chai West
6.3.1 One limit level
exceedance of suspended solids was recorded on 2 February 2017 during flood
tide and one action level exceedance of suspended solids was recorded on 4
February 2017 during flood tide in the reporting month. After the
investigation, the exceedances were concluded as non-project related.
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 – Central – 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 roadworks, back-filling at
tunnel and Reinstatement of culvert K were performed in February 2017 reporting
month. 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, building demolition and tunnel works at Wan Chai East, tunnel
construction and backfilling works and ELS works at Wan Chai West. The major
construction activities under Central-Wan Chai Bypass and Island Eastern Corridor
Link Projects were road works and ventilation building construction at Central Interchange,
reinstatement of Eastern Breakwater, ELS works and retaining wall construction at
Victoria Park, ELS works and tunnel works at TS3, bridge construction, piling
and tunnel works at North Point area in the reporting month. In addition, other
non-Wan Chai Development Phase II, Central-Wan Chai Bypass and Island Eastern Corridor
Link projects was 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 1, 7, 14, 21 and 28 February 2017 for Contract no. HK/2012/08. No observation was found during the reporting period.
8.1.2 During this reporting month, four weekly site inspections were carried
out on 2, 9, 16 and 23 February 2017 for Contract no. HY/2009/18. 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 – January 2017 |
4 |
|
February 2017 |
0 |
|
Total |
4 |
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 |
·
Roadworks ·
Back-filling at tunnel ·
Reinstatement of culvert K ·
Reinstatement of cooling mains |
·
Dust control during dust generating works; ·
Implementation of proper noise pollution
control; and ·
Provision of protection to ensure no
runoff out of site area or direct discharge into public drainage system. |
|
HY/2009/18 |
·
NIL |
·
NIL |