|
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 Quarterly Environmental Monitoring
and Audit Report
- AUGUST 2019 TO OCTOBER
2019 -
|
|
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 |
|
|
|
|
|
|
|
|
CHECKED by: |
|
|
Raymond Dai Environmental Team Leader |
|
|
DATE: |
|
|
16 December 2019 |
2.2 Scope of the Project and Site
Description
2.3 Project
Organization and Contact Personnel
2.4 Principal
Work and Activities
4.2. Air Quality Monitoring Results
4.3. Water
Quality Monitoring Results
5.5. Review of the Reasons for and the
Implications of Non-compliance.
5.6. Summary of action taken in the event of
and follow-up on non-compliance.
6. Complaints,
Notification of Summons and Prosecution
7. Cumulative
Construction Impact due to the Concurrent Projects
lIST
OF TABLES
Table 1.1 Principal Work Activities in the reporting
period for Contractor no. HK/2012/08
Table 2.1 Schedule
2 Designated Projects under this Project
Table 2.2 Contact
Details of Key Personnel
Table 2.3 Principal
Work Activities in the reporting period for Contracor no. HK/2012/08
Table 3.1 Continuous
Noise Monitoring Stations
Table 3.2 Air
Monitoring Stations
Table 3.3 Water
Quality Monitoring Stations
Table 3.4 Marine
Water Quality Monitoring Frequency and Parameters
Table 4.1 Continuous
Noise Monitoring Stations for Contract no. HK/2012/08
Table 4.3 Air
Monitoring Station for Contract no. HK/2012/08
Table 4.5 Water
Quality Monitoring Station for Contract no. HK/2012/08
Table 4.6
Summary of Water Quality Monitoring Exceedance in the reporting period
Table 4.7 Details
of Waste Disposal for Contract no. HK/2012/08
Table
6.1 Cumulative
Statistics on Complaints
Table
6.2 Cumulative
Statistics on Successful Prosecutions
lIST OF FIGUREs
Figure 2.2 Project Organization Chart
Figure 3.1 Locations
of Environmental Monitoring Stations
lIST OF APPENDIces
Appendix
2.1 Environmental
Mitigation Implementation Schedule
Appendix 3.1 Action
and Limit Level
Appendix
4.1 Noise Monitoring Graphical Presentations
Appendix
4.2 Air
Quality Monitoring Graphical Presentations
Appendix
4.3 Water
Quality Monitoring Graphical
Presentations
Appendix 5.1 Event
Action Plans
Appendix 8.1 Construction
Programme of Individual Contracts
Construction Activities for the Reported Period
Contract no. HK/2012/08 – Wan Chai Development
Phase II – Central- Wan Chai Bypass at Wan Chai West
Table 1.1
Principal Work Activities in the reporting period
for Contract no. HK/2012/08
|
August |
September |
October |
|
· Roadworks · Drainage · Seawall coping |
· Remediation works |
· Remediation works |
Noise Monitoring
Air Quality Monitoring
Water Quality Monitoring
Complaints, Notifications of Summons
and Successful Prosecutions
1.1.1.
Lam Geotechnics Limited (LGL) has
been appointed to work as the Environmental Team (ET) under Environmental
Permit no. EP-122/2002/E to implement the Environmental Monitoring and Audit (EM&A)
programme as stipulated in the EM&A Manual of the approved Environmental
Impact Assessment (EIA) Report Central Reclamation Phase III -
Studies, Site Investigation, Design and Construction (Register No.:
AEIAR-040/2001) since 1
May 2013.
1.1.2.
This report documents the finding of EM&A works for
Environmental Permit (EP) no. EP-122/2002/E, during
the period from 1st August 2019 to 31th October 2019.
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 Monitoring
Requirements – summarizes all
monitoring parameters, monitoring locations, monitoring frequency, duration and action
plan.
Section 4 Monitoring
Results
– summarizes the monitoring results obtained in the reporting period.
Section 5 Compliance
Audit
– summarizes the auditing of monitoring results, all exceedances
environmental parameters.
Section 6 Complaints, Notification of summons and Prosecution
–
summarizes the cumulative statistics on complaints,
notification of summons and prosecution
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 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 Civil Engineering and
Development Department (CEDD) is associated with Designated Project 1 (DP1) and
Designated Project 2 (DP2).
2.2.5.
Contract HY/2010/08 – Central Wanchai Bypass – 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 |
|||
|
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 |
2.4.1 During this reporting period, the principle work
activities of the contracts are included as follows:
Contract no. HK/2012/08 – Wan Chai Development Phase II – Central- Wan Chai
Bypass at Wan Chai West
Table
2.3 Principal Work Activities in the reporting period for HK/2012/08
|
August |
September |
October |
|
· Roadworks · Drainage · Seawall coping |
· Remediation works |
· Remediation works |
2.4.2 Implementation status of the recommended mitigation
measures during this reporting period is presented in Appendix
2.1.
NOISE Monitoring Stations
3.1.1.
The continuous noise monitoring station for the Project is listed and
shown in Table 3.1 and Figure 3.1.
Appendix 3.1 shows the established Action/Limit
Levels for the monitoring works.
Table 3.1 Continuous Noise
Monitoring Stations
|
District |
Station |
Description |
|
Central |
ACL3 |
City Hall |
Noise Monitoring Parameters, Frequency and Duration
3.1.2. 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 everyday.
3.1.3. 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
3.1.4. 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.
3.1.5. 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.
3.1.6. 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
3.2.1.
The air quality monitoring stations for the
Project are listed and shown in Table 3.2 and Figure 3.1. Appendix 3.1 shows the
established Action/Limit Levels for the monitoring works.
Table 3.2 Air Quality Monitoring
Stations
|
Station ID |
Monitoring
Location |
|
ACL1 |
City Hall |
|
ACL2a |
Contractor HK/2012/08 Site Office |
Air Quality Monitoring Parameters, Frequency and Duration
3.2.2.
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.
3.2.3.
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.
3.2.4.
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
3.2.5.
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.
3.2.6.
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
3.2.7.
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.
3.2.8.
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.
3.2.9.
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.
3.2.10.
All the collected samples shall be kept in a
good condition for 6 months before disposal.
WATER Quality Monitoring Stations
3.3.1 The water
quality monitoring stations for the Project are listed and shown in Table
3.3 and Figure 3.1. Appendix 3.1 shows the
established Action/Limit Levels for the monitoring works.
Table
3.3 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
3.3.2 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.
3.3.3 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
3.3.4 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 3.4 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 3.4 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
3.3.5
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
3.3.6
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).
3.3.7
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
3.3.8
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 (e.g. Hach model 2100P
or an approved similar instrument).
Sampler
3.3.9
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
3.3.10
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
3.3.11
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
3.3.12
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
3.3.13
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
3.3.14
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.
3.3.15
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.
3.3.16
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.
Laboratory Measurement / Analysis
3.3.17
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.
4.0.1.
The environmental monitoring will be implemented based on the division
of works areas of each designed 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 3.1. The monitoring results are
presented in according to the Individual Contract(s).
4.0.2. In the reporting period, the concurrent
contracts are:
Contract
no. HK/2012/08 – Wan Chai Development Phase II – Central – Wan Chai Bypass at
Wan Chai West.
4.1.1 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
The proposed division of noise
monitoring station is summarized in Table 4.1 below.
Table
4.1 Continuous
Noise
Monitoring Station 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.
4.1.2 Limit level
exceedances were recorded on 2, 5, 10, 17, 22, 28 and 31 August 2019 in August reporting
period. After investigation, no construction works was conducted by Contractor
HK/2012/08 at CRIII area on 2, 5, 10, 17, 22, 28 and 31 August 2019. Meanwhile,
public events were held at area opposite to the monitoring station during the
concerned period and considered as the major noise contribution. As such, the
exceedance was not related to Project.
4.1.3 Limit level
exceedances were recorded on 23 and 28 September 2019 in September reporting
period. After investigation, no construction works was conducted by Contractor
HK/2012/08 at CRIII area on 23 and 28 September 2019. Meanwhile, public events
were held at area opposite to the monitoring station during the concerned
period and considered as the major noise contribution. As such, the exceedance was
not related to Project.
4.1.4 Limit level exceedances were recorded
on11, 15, 18 and 31 October 2019 in October reporting period. After
investigation, no construction works was conducted by Contractor HK/2012/08 at
CRIII area 11, 15, 18 and 31 October 2019. Meanwhile, public events were held
at area opposite to the monitoring station during the concerned period and
considered as the major noise contribution. As such, the exceedance was not
related to Project.
4.1.5 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 4.1
4.1.6 As WDII RSS confirmation of construction
works completion at CRIII area on 21 October 2019 and agreed with IEC on 1
November 2019, the continuous noise monitoring at ACL3 – City Hall for Contract
no. HK/2012/08 under EP-122/2002/E was suspended from 1 November 2019 onward.
4.2.1
1-hour
and 24-hour Total Suspended Particulates (TSP) monitoring were conducted at
ACL1 – City Hall and ACL2 – PLA Barracks (ACL2a Contractor HK/2012/08 Site
Office since 7 December 2013) on every six days basis.
4.2.2
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.
4.2.3
Air
Quality Monitoring at ACL2 was temporarily suspended during the period from
14th November, 2013 to 3rd December, 2013.
4.2.4
The
Proposal for Relocation of Air Quality Monitoring Station at People’s
Liberation Army Headquarter (ACL2) was approved by EPD on 27 November 2013.
4.2.5
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.
4.2.6
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
4.2.7 The
proposed division of air quality monitoring stations are summarized in Table
4.3 below.
Table
4.3 Air
Quality Monitoring Stations for Contract no. HK/2012/08
|
Station |
Description |
|
ACL1 |
City Hall |
|
ACL2a |
Contractor HK/2012/08 Site Office |
4.2.8
One
action level exceedance of 1hr TSP was recorded at ACL2a – Contractor
HK/2012/08 Site Office on 24 August 2019 in August reporting period.
4.2.9
After the
investigation, no construction works was undertaken under Contract HK/2012/08
around the monitoring location on the monitoring date and no particular
observation regarding dust emission was observed during sampling periods.
Mitigation measure including water spraying for haul road and dusty surface
were generally implemented by the Contractor of HK/2012/08. Meanwhile, elevated
Air Quality Health index (AQHI) (From Level 5 to Level 7) was recorded at EPD
Central/Western General Station, Central Roadside Station and Causeway Bay
Roadside Station. Elevated PM2.5 (Range from 74.95μg/m3 to 96.95μg/m3) and PM10
(Ranged from 62.5μg/m3 to 122.8μg/m3) level were recorded at the above
mentioned monitoring station. In addition, similar elevation in TSP level were
recorded across the same period on 24 August 2019 at other AQM station at Central
area. In view of the above, the exceedance was considered to be not related to
the Project works under Contract HK/2012/08 and potentially contributed by
ambient air quality condition.
4.2.10
No action
or limit level exceedance was recorded in September and October 2019 reporting
period.
4.2.11
The air quality monitoring results measured
in this reporting period are reviewed and summarized. Details of air monitoring results and
graphical presentation can be referred in Appendix 4.2.
4.2.12
As WDII
RSS confirmation of construction works completion at CRIII area on 21 October
2019 and agreed with IEC on 1 November 2019, the air quality monitoring at ACL1
– City Hall and ACL2a – Contractor HK/2012/08 Site Office for Contract no.
HK/2012/08 under EP-122/2002/E was suspended from 1 November 2019 onward.
4.3.1 The
proposed division of water quality monitoring stations are summarized in Table
4.5 below.
Table 4.5
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 |
||
4.3.2
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
4.6 and Appendix 4.3
4.3.3
Water quality monitoring at M5B and Culvert J
were conducted three days per week during reporting period starting form 26
September 2014.
4.3.4 Two action level exceedances were
recorded on 7 and 19 August 2019 during Flood tide in August reporting period.
After the investigation, no marine
construction activity was conducted under Contract HK/2012/08 was conducted on
7 August 2019. In view of no marine works, it is considered that the exceedance
was not related to Project works. No
exceedance was recorded in the subsequent monitoring on 7 August 2019 ebb tide.
After the investigation, no marine
construction activity was conducted under Contract HK/2012/08 was conducted on
19 August 2019. In view of no marine works, it is considered that the
exceedance was not related to Project works.
No exceedance was recorded in the subsequent monitoring on 19 August
2019 ebb tide.
4.3.5
With
respect to the confirmation of completion of marine work by WDII RSS, the water
quality monitoring at M5B and Culvert J was temporary suspended from 23 August
2019 onward after completion of 4 weeks post-construction monitoring and with
agreement from IEC.
Table 4.6 Summary of Water Quality Monitoring
Exceedance in Reporting Period
|
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 |
2 |
0 |
0 |
0 |
0 |
0 |
|
Culvert J1 |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Total |
0 |
0 |
2 |
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 – Wan Chai Development
Phase II – Central – Wan Chai Bypass at Wan Chai West
4.4.1
No Inert and Non-inert C&D wastes were disposed
in this reporting period. Details of the waste flow table are summarized in Table
4.7
Table
4.7 Details of Waste Disposal for Contract no. HK/2012/08
|
Waste Type |
Quantity this quarter |
Cumulative
Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert
C&D materials disposed, m3 |
0 0 |
8005 51779 |
TM38 TKO137 |
|
Inert
C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Non-inert
C&D materials disposed, m3 |
0 |
1925 |
SENT
Landfill |
|
Non-inert
C&D materials recycled, m3 |
NIL |
NIL |
NIL |
|
Chemical
waste disposed, kg |
NIL |
NIL |
NIL |
5.0.1. The Event Action Plan for construction
noise and air quality are presented in Appendix
5.1.
Contract no.
HK/2012/08 – Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan
Chai West
5.1.1
Limit level exceedances were recorded on 2,
5, 10, 17, 22, 28 and 31 August 2019 in August reporting period. After
investigation, the exceedance was not related to Project.
5.1.2
Limit level exceedances were recorded on 23
and 28 September 2019 in September reporting period. After investigation, the
exceedance was not related to Project.
5.1.3
Limit level exceedances were recorded on 11,
15, 18 and 31 October 2019 in October reporting period. After investigation,
the exceedance was not related to Project.
5.1.4
As WDII RSS confirmation of construction
works completion at CRIII area on 21 October 2019 and agreed with IEC on 1
November 2019, the continuous noise monitoring at ACL3 – City Hall for Contract
no. HK/2012/08 under EP-122/2002/E was suspended from 1 November 2019 onward.
Contract no.
HK/2012/08 – Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan
Chai West
5.2.2
No action
or limit level exceedance was recorded in September and October 2019 reporting
period.
5.2.3
As WDII
RSS confirmation of construction works completion at CRIII area on 21 October
2019 and agreed with IEC on 1 November 2019, the air quality monitoring at ACL1
– City Hall and ACL2a – Contractor HK/2012/08 Site Office for Contract no.
HK/2012/08 under EP-122/2002/E was suspended from 1 November 2019 onward.
Contract no.
HK/2012/08 – Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan
Chai West
5.4.1
There was no non-compliance from the site audits
in the reporting period. During environmental site inspections conducted during
the reporting period, minor deficiencies were noted.
5.5.1
There
was no non-compliance from the site audits in the reporting period.
5.6.1
There was no particular action taken since no
project-related non-compliance was recorded from the site audits and
environmental monitoring in the reporting period.
5.7.1
In respect to EPD concern on muddy discharge
and surface runoff from construction works during wet season, the following
mitigation measures was implemented by Contractor(s):
|
Contract No. |
Mitigation
Measures implemented |
|
HK/2012/08 |
·
Deployment of embankment along seawall ·
Regular cleaning the sand / silt / mud sitting
along the seawall ·
Hard paved the area along seafront ·
Cover the stockpile material to avoid
excessive surface runoff ·
Regular review and maintenance of the site
drainage system ·
Discharge of wastewater via wastewater
treatment plant if necessary |
6.0.1.
No
environmental complaint was received in this reporting quarter.
6.0.2.
The details of cumulative complaint log and summary of complaints are
presented in Appendix
6.1.
6.0.3. No notification
of summons or prosecution was received in the reporting period. Cumulative statistic on complaints and
successful prosecutions are summarized in Table 6.1 and Table 6.2 respectively.
Table 6.1 Cumulative Statistics on Complaints
|
Reporting Period |
No. of Complaints |
|
Commencement works to last reporting quarter |
5 |
|
August 2019 – October 2019 |
0 |
|
Project-to-Date |
5 |
Table 6.2 Cumulative Statistics on Successful Prosecutions
|
Environmental
Parameters |
Cumulative
No. Brought Forward |
No. of
Successful Prosecutions this quarter (Offence Date) |
Cumulative
No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Water |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
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 period.
7.0.3.
According to the construction programme of
Central-Wanchai Bypass at Wanchai West at the Central Reclamation Phase III
area including remediation works, was performed in October 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 trimming work at WCR1 and WCR3 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; seabed reinstatement at Causeway Bay; 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 period. Besides, no project related
exceedance was recorded during the air, noise and water environmental
monitoring events in the reporting period. 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.
8.0.1. 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.
8.0.2. No non-compliances were noted and no
prosecutions were received during the reporting period.
8.0.3. Mitigation measures according to the
environmental mitigation implementation schedule and the EIA were generally
implemented by the Contractor in this reporting period. Environmental site
audit was conducted by the Environmental Team and the Independent Environmental
Checker and no cumulative environmental impact was identified in the reporting
period. Hence, the EM&A programme was considered effective and shall be
maintained.
8.0.4. The
construction programmes of individual contracts are provided in Appendix 8.1.