TABLE OF CONTENTS
Page
1.4 Summary of Construction Works
1.5 Summary of EM&A Programme Requirements
2.4 Monitoring Parameters, Frequency and Duration
2.6 Monitoring Schedule for the Reporting Month
3.4 Monitoring Parameters, Frequency and Duration
3.6 Monitoring Schedule for the Reporting Month
4.3 Monitoring Parameters, Frequency and Duration
4.6 Monitoring Schedule for the Reporting Month
5.3 Monitoring Frequency and Conditions
5.4 Monitoring Methodology and Location
5.6 Monitoring Schedule for the Reporting Month
6 ENVIRONMENTAL
SITE INSPECTION AND AUDIT
6.2 Advice on the Solid and Liquid Waste Management Status
6.3 Environmental Licenses and Permits
6.4 Implementation Status of Environmental Mitigation Measures
6.5 Summary of Exceedances of the Environmental Quality
Performance Limit
6.6 Summary of Complaints, Notification of Summons and
Successful Prosecutions
7.1 Construction Programme for the Coming Months
7.2 Key Issues for the Coming Month
7.3 Monitoring Schedule for the Coming Month
8 ConclusionS AND RECOMMENDATIONS
List of
Tables
Table 1.1 Contact Information of Key Personnel
Table 2.1 Air Quality Monitoring
Equipment
Table 2.2 Locations of Impact Air
Quality Monitoring Stations
Table 2.3 Air Quality Monitoring
Parameters, Frequency and Duration
Table 2.4 Summary of 1-hour TSP
Monitoring Results in the Reporting Period
Table 2.5 Summary of 24-hour TSP
Monitoring Results in the Reporting Period
Table 3.1 Noise Monitoring
Equipment
Table 3.2 Locations of Impact Noise
Monitoring Stations
Table 3.3 Noise Monitoring
Parameters, Frequency and Duration
Table 3.4 Summary of Construction
Noise Monitoring Results in the Reporting Period
Table 4.1 Water Quality Monitoring
Equipment
Table 4.2 Impact Water Quality
Monitoring Parameters and Frequency
Table 4.3 Impact Water Quality
Monitoring Stations
Table 4.4 Laboratory Analysis for
Suspended Solids
Table 4.5 Summary of
Water Quality Exceedances
Table 5.1 Dolphin Monitoring
Equipment
Table 5.2 Impact Dolphin Monitoring
Line Transect Co-ordinates (Provided by AFCD)
Table 5.3 Impact Dolphin Monitoring
Survey Effort Summary, Effort by Area and Beaufort
State
Table 5.4 Impact Dolphin Monitoring
Survey Details in May 2013
Table 5.5. The Encounter Rate of Number of Dolphin Sightings
& Total Number of Dolphins per Area
Table 6.1 Summary of Environmental Licensing and Permit Status
Figures
Figure 1 General
Project Layout Plan
Figure
2 Impact
Air Quality and Noise Monitoring Stations and Wind Station
Figure
3 Impact
Water Quality Monitoring Stations
Figure
4 Impact
Dolphin Monitoring Line Transect Layout Map
Figure 5 Impact
Dolphin Monitoring Survey Efforts and Sightings in May 2013
Figure 6 Environmental
Complaint Handling Procedure
List of Appendices
Appendix
A Project
Organization for Environmental Works
Appendix B Three Month
Rolling Construction Programmes
Appendix
C Implementation
Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary of Action
and Limit Levels
Appendix E Calibration Certificates of
Monitoring Equipments
Appendix F EM&A Monitoring Schedules
Appendix
G Impact Air
Quality Monitoring Results and their Graphical Presentation
Appendix H Meteorological Data for Monitoring
Periods on Monitoring Dates in May
2013
Appendix
I Impact
Construction Noise Monitoring Results and their Graphical Presentation
Appendix
J Impact Water Quality Monitoring Results
and their Graphical Presentation
Appendix
K Impact
Dolphin Monitoring Survey Sighting Summary
Appendix M Monthly Summary of Waste Flow Table
Appendix N Cumulative Statistics on
Exceedances, Complaints, Notifications of Summons and Successful Prosecutions
This report documents the findings of EM&A works conducted in the period between 1 and 31 May 2013. As informed by the Contractor, major activities in the reporting period were:-
Marine-based
Works
-
Cellular structure installation
-
Connecting arc cell installation
-
Laying geo-textile
-
Sand blanket laying
-
Maintenance of silt curtain
-
Stone column installation
-
Laying stone blanket
-
Band drain installation
-
Backfill cellular structure
-
Instrumentation works
-
Construction of temporary seawall
-
Ground investigation
-
Installation of silt screen at sea water intake of HKIA
Land-based
Works
-
Maintenance works of Site Office at Works Area WA2
-
Maintenance works of Public Works Regional Laboratory
at Works Area WA3
-
Geo-textile fabrication at Works Area WA2
-
Silt curtain fabrication at Works Area WA4
-
Green roof construction at Works Area WA2
-
Construction of Temporary Marine Access at Works Area WA2
A summary of monitoring and audit
activities conducted in the reporting period is listed below:
24-hour Total Suspended
Particulates (TSP) monitoring 1-hour TSP monitoring |
5 sessions 5 sessions |
Noise monitoring |
4 sessions |
Impact water quality
monitoring |
13 sessions |
Impact dolphin monitoring |
2 surveys |
Joint Environmental site
inspection |
5
sessions |
Breaches of Action and Limit
Levels for Air Quality
All 1-Hour TSP and 24-hour TSP results were below the Action and
Limit Level in the reporting month.
Breaches of Action and Limit
Levels for Noise
For construction noise, no exceedance was recorded at all monitoring stations in the reporting period.
Breaches of Action and Limit
Levels for Water Quality
Five (5) Action Level Exceedances of SS at IS(Mf)6, IS(Mf)9, IS7 and IS8 at Mid-Flood tide and IS(Mf)9 at Mid-Ebb tide were recorded on 8 May 2013. After investigation, the water quality exceedances were considered not to be due to the Project works.
Impact
Dolphin Monitoring
A total
of thirteen
dolphin sightings were recorded during the two surveys, seven on 9 May 2013 and
six on 24 May 2013. Of the thirteen sightings, six were ¡§on effort¡¨ (which are all
under favourable condition) and seven were ¡§opportunistic¡¨. A total of
forty-three
individuals were sighted from the two impact dolphin surveys in the reporting
period. Sighting details are summarised and plotted in Appendix K and Figure
5c, respectively.
Breaches of Action and Limit
Levels for Dolphin Monitoring
One (1)
Limit Level Exceedance regarding the impact dolphin monitoring in the period of
March to May 2013 was recorded in the reporting period. The investigation
results will be presented in the upcoming quarterly report.
Complaint, Notification of
Summons and Successful Prosecution
Reporting Change
There was no
reporting change required in the reporting period.
Future Key Issues
Key issues to be considered
in the coming month included:-
-
Site runoff should be properly collected and treated prior
to discharge;
-
Minimize loss of sediment from filling works;
-
Regular review and maintenance of silt curtain systems,
drainage systems and desilting facilities;
-
Exposed surfaces/soil stockpiles should be properly treated
to avoid generation of silty surface run-off during rainstorm;
-
Regular review and maintenance of wheel washing facilities
provided at all site entrances/exits;
-
Conduct regular inspection of various working machineries
and vessels within works areas to avoid any dark smoke emission;
-
Suppress dust generated from work processes with use of
bagged cements, earth movements, excavation activities, exposed surfaces/soil
stockpiles and haul road traffic;
-
Quieter powered mechanical equipment should be used;
-
Provision of proper and effective noise control measures for
operating equipment and machinery on-site, such as erection of movable noise
barriers or enclosure for noisy plants;
-
Closely check and replace the sound insulation materials
regularly;
-
Better scheduling of construction works to minimize noise
nuisance;
-
Properly store and label oil drums and chemical containers
placed on site;
-
Proper chemicals, chemical wastes and wastes management;
-
Maintenance works should be carried out within roofed, paved
and confined areas;
-
Collection and segregation of construction waste and general
refuse on land and in the sea should be carried out properly and regularly; and
-
Proper protection and regular inspection of existing trees,
transplanted/retained trees.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
Engineer¡¦s
Representative (ER) (Ove Arup & Partners Hong Kong Limited) |
Chief Resident Engineer |
Roger Marechal |
3698 5700 |
2698 5999 |
IEC / ENPO (ENVIRON Hong Kong
Limited) |
Independent Environmental
Checker |
Raymond Dai |
3743 0788 |
3548 6988 |
Environmental Project Office
Leader |
Y. H. Hui |
3743 0788 |
3548 6988 |
|
Contractor (China Harbour
Engineering Company Limited) |
General Manager (S&E) |
Daniel Leung |
3157 1086 |
2578 0413 |
Environmental Officer |
C. M. Wong |
3157 1086 |
2578 0413 |
|
24-hour Hotline |
Alan C.C. Yeung |
9448 0325 |
-- |
|
ET (AECOM Asia Company Limited) |
ET Leader |
Echo Leong |
3922 9280 |
2317 7609 |
Marine-based Works
-
Marine-base
-
Cellular structure installation
-
Connecting arc cell installation
-
Laying geo-textile
-
Sand blanket laying
-
Maintenance of silt curtain
-
Stone column installation
-
Laying stone blanket
-
Band drain installation
-
Backfill cellular structure
-
Instrumentation works
-
Construction of temporary seawall
-
Ground investigation
-
Installation of silt screen at sea water intake of HKIA
Land-based Works
-
Maintenance works of Site Office at Works Area WA2
-
Maintenance works of Public Works Regional Laboratory
at Works Area WA3
-
Geo-textile fabrication at Works Area WA2
-
Silt curtain fabrication at Works Area WA4
-
Green roof construction at Works Area WA2
-
Construction of Temporary Marine Access at Works Area WA2
-
All monitoring
parameters;
-
Monitoring
schedules for the reporting month and forthcoming month;
-
Action and
Limit levels for all environmental parameters;
-
Event / Action
Plan;
-
Environmental
mitigation measures, as recommended in the Project EIA reports; and
-
Environmental
requirement in contract documents.
Table
2.1 Air
Quality Monitoring Equipment
Equipment |
Brand and Model |
Portable
direct reading dust meter (1-hour TSP) |
Sibata
Digital Dust Monitor (Model No. LD-3 and
LD-3B) |
High
Volume Sampler |
Tisch
Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High
Volume Air Sampler (Model
No. TE-5170) |
Table
2.2 Locations
of Impact Air Quality Monitoring Stations
Monitoring Station |
Location |
Description |
AMS2 |
Tung Chung Development Pier |
Rooftop of the premise |
AMS3A |
Site Boundary of Site Office Area at Works Area WA2 |
On ground at the area boundary |
AMS6* |
Dragonair/CNAC (Group) Building |
On ground at boundary of the premise |
AMS7 |
Hong Kong SkyCity Marriott Hotel |
On ground at boundary of the premise |
#Remarks: Reference is made to EPD
conditional approval of the omission of air monitoring station (AMS 6) for the
project. The omission will be effective on 19 November 2012.
Table
2.3 Air
Quality Monitoring Parameters, Frequency and Duration
Parameter |
Frequency and Duration |
1-hour
TSP |
Three times every 6
days while the highest dust impact was expected |
24-hour
TSP |
Once every 6 days |
(a)
The HVS was installed in the
vicinity of the air sensitive receivers.
The following criteria were considered in the installation of the HVS.
(i)
A horizontal platform with
appropriate support to secure the sampler against gusty wind was provided.
(ii)
No two samplers should be placed
less than 2 meters apart.
(iii)
The distance between the HVS and
any obstacles, such as buildings, was at least twice the height that the
obstacle protrudes above the HVS.
(iv)
A minimum of 2 meters separation
from walls, parapets and penthouse for rooftop sampler.
(v)
A minimum of 2 meters separation
from any supporting structure, measured horizontally is required.
(vi)
No furnace or incinerator flues
nearby.
(vii)
Airflow around the sampler was
unrestricted.
(viii)
Permission was obtained to set up
the samplers and access to the monitoring stations.
(ix)
A secured supply of electricity
was obtained to operate the samplers.
(x)
The sampler was located more than
20 meters from any dripline.
(xi)
Any wire fence and gate, required
to protect the sampler, did not obstruct the monitoring process.
(xii)
Flow control accuracy was kept
within ¡Ó2.5% deviation over 24-hour sampling period.
(b)
Preparation of Filter Papers
(i)
Glass fibre filters, G810 were
labelled and sufficient filters that were clean and without pinholes were
selected.
(ii)
All filters were equilibrated in
the conditioning environment for 24 hours before weighing. The conditioning
environment temperature was around
(iii)
All filter papers were prepared
and analysed by ALS Technichem (HK) Pty Ltd., which is a HOKLAS accredited
laboratory and has comprehensive quality assurance and quality control
programmes.
(c)
Field Monitoring
(i)
The power supply was checked to
ensure the HVS works properly.
(ii)
The filter holder and the area
surrounding the filter were cleaned.
(iii)
The filter holder was removed by
loosening the four bolts and a new filter, with stamped number upward, on a
supporting screen was aligned carefully.
(iv)
The filter was properly aligned
on the screen so that the gasket formed an airtight seal on the outer edges of
the filter.
(v)
The swing bolts were fastened to
hold the filter holder down to the frame.
The pressure applied was sufficient to avoid air leakage at the edges.
(vi)
Then the shelter lid was closed
and was secured with the aluminum strip.
(vii)
The HVS was warmed-up for about 5
minutes to establish run-temperature conditions.
(viii)
A new flow rate record sheet was
set into the flow recorder.
(ix)
On site temperature and
atmospheric pressure readings were taken and the flow rate of the HVS was
checked and adjusted at around 1.1 m3/min, and complied with the
range specified in the updated EM&A Manual (i.e. 0.6-1.7 m3/min).
(x)
The programmable digital timer
was set for a sampling period of 24 hrs, and the starting time, weather
condition and the filter number were recorded.
(xi)
The initial elapsed time was
recorded.
(xii)
At the end of sampling, on site
temperature and atmospheric pressure readings were taken and the final flow
rate of the HVS was checked and recorded.
(xiii)
The final elapsed time was
recorded.
(xiv)
The sampled filter was removed carefully
and folded in half length so that only surfaces with collected particulate
matter were in contact.
(xv)
It was then placed in a clean
plastic envelope and sealed.
(xvi)
All monitoring information was
recorded on a standard data sheet.
(xvii)
Filters were then sent to ALS
Technichem (HK) Pty Ltd. for analysis.
(d)
Maintenance and Calibration
(i)
The HVS and its accessories were
maintained in good working condition, such as replacing motor brushes routinely
and checking electrical wiring to ensure a continuous power supply.
(ii)
5-point calibration of the HVS
was conducted using TE
(iii)
Calibration certificate of the
HVSs are provided in Appendix E.
(a)
Measuring Procedures
The
measuring procedures of the 1-hour dust meter were in accordance with the
Manufacturer¡¦s Instruction Manual as follows:-
(i)
Turn the power on.
(ii)
Close the air collecting opening
cover.
(iii)
Push the ¡§TIME SETTING¡¨ switch to
[BG].
(iv)
Push ¡§START/STOP¡¨ switch to
perform background measurement for 6 seconds.
(v)
Turn the knob at SENSI ADJ
position to insert the light scattering plate.
(vi)
Leave the equipment for 1 minute
upon ¡§SPAN CHECK¡¨ is indicated in the display.
(vii)
Push ¡§START/STOP¡¨ switch to
perform automatic sensitivity adjustment. This measurement takes 1 minute.
(viii)
Pull out the knob and return it
to MEASURE position.
(ix)
Push the ¡§TIME SETTING¡¨ switch
the time set in the display to 3 hours.
(x)
Lower down the air collection
opening cover.
(xi)
Push ¡§START/STOP¡¨ switch to start
measurement.
(b)
Maintenance and Calibration
(i)
The 1-hour TSP meter was
calibrated at 1-year intervals against a continuous particulate TEOM Monitor,
Series 1400ab. Calibration certificates of the Laser Dust Monitors are provided
in Appendix E.
(ii)
1-hour validation checking of the
TSP meter against HVS is carried out on half-year basis at the air quality monitoring locations.
Table
2.4 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
|
Average (mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit Level
(mg/m3) |
AMS2 |
80 |
82 ¡V 85 |
374 |
500 |
AMS3A |
82 |
76 ¡V 88 |
368 |
500 |
AMS7 |
77 |
67 ¡V 82 |
370 |
500 |
Table 2.5 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
|
Average (mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit Level
(mg/m3) |
AMS2 |
26 |
16 - 44 |
176 |
260 |
AMS3A |
75 |
16 - 154 |
167 |
260 |
AMS7 |
29 |
16 - 42 |
183 |
260 |
Table 3.1 Noise
Monitoring Equipment
Equipment |
Brand and Model |
Integrated Sound Level Meter |
Rion NL-31 |
Acoustic Calibrator |
Rion NC-73 |
Remarks: Monitoring
Table 3.2 Locations
of Impact Noise Monitoring Stations
Monitoring Station |
Location |
Description |
NMS2 |
Seaview Crescent Tower 1 |
Free-field
on the rooftop of the premise |
NMS3A |
Site Boundary of Site Office Area at
Works Area WA2 |
Free-field on
ground at the area boundary. |
Table
3.3 Noise
Monitoring Parameters, Frequency and Duration
Parameter |
Frequency and Duration |
30-mins measurement at each monitoring station between
0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10
and L90 would be recorded. |
At least once per week |
(a)
The sound level meter was set on a
tripod at a height of
(b)
All
measurement at NMS3A were free field measurements in the reporting month at NMS3A. A correction of +3 dB(A) shall be made to the free field measurements.
(c)
The battery condition was checked
to ensure the correct functioning of the meter.
(d)
Parameters such as frequency
weighting, the time weighting and the measurement time were set as follows:-
(i)
frequency weighting: A
(ii)
time weighting: Fast
(iii)
time measurement: Leq(30-minutes)
during non-restricted hours i.e. 07:00 ¡V 1900 on normal weekdays.
(e)
Prior to and after each noise
measurement, the meter was calibrated using the acoustic calibrator for 94dB(A)
at 1000 Hz. If the difference in
the calibration level before and after measurement was more than 1 dB(A), the
measurement would be considered invalid and repeat of noise measurement would
be required after re-calibration or repair of the equipment.
(f)
During the monitoring period, the
Leq, L10 and L90 were recorded. In addition, site conditions and noise
sources were recorded on a standard record sheet.
(g)
Noise measurement was paused
during periods of high intrusive noise (e.g. dog barking, helicopter noise) if
possible. Observations were recorded when intrusive noise was unavoidable.
(h)
Noise monitoring was cancelled in
the presence of fog, rain, wind with a steady speed exceeding
(a)
The microphone head of the sound
level meter was cleaned with soft cloth at regular intervals.
(b)
The meter and calibrator were
sent to the supplier or HOKLAS laboratory to check and calibrate at yearly
intervals.
(c)
Calibration certificates of the
sound level meters and acoustic calibrators are provided in Appendix E.
Table 3.4 Summary
of Construction Noise Monitoring Results in the Reporting Period
|
Average,
dB(A), Leq (30 mins) |
Range,
dB(A), Leq (30 mins) |
Limit Level,
dB(A), Leq (30 mins) |
NMS2 |
65 |
64 ¡V 65* |
75 |
NMS3A |
64 |
62 ¡V 67* |
70^ |
*+3dB(A) Façade
correction included
^
Daytime noise Limit Level of 70 dB(A) applies to education institutions
Table 4.1 Water
Quality Monitoring Equipment
Equipment |
Brand and Model |
Dissolved Oxygen (DO) and Temperature Meter, Salinity Meter and
Turbidimeter |
YSI Model 6820 |
pH Meter |
YSI Model 6820 or Thermo Orion 230A+ |
Positioning Equipment |
JRC DGPS 224 Model JLR-4341 with J-NAV 500 Model NWZ4551 |
Water Depth Detector |
Eagle Cuda-168 |
Water Sampler |
Kahlsio Water Sampler (Vertical) 2.2 L with messenger |
Table 4.2 Impact
Water Quality Monitoring Parameters and Frequency
Monitoring
Stations |
Parameter,
unit |
Frequency |
No.
of depth |
Impact
Stations: IS5, IS(Mf)6, IS7, IS8, IS(Mf)9,
IS10, IS(Mf)11, IS(Mf)16, IS17 Control/Far
Field Stations: CS(Mf)3, CS(Mf)5, CS4, CS6,
CSA Sensitive
Receiver Stations: SR3-SR7, SR10A&SR10B |
¡P
Depth, m ¡P
Temperature, oC ¡P
Salinity, ppt ¡P
Dissolved Oxygen (DO), mg/L ¡P
DO Saturation, % ¡P
Turbidity, NTU ¡P
pH ¡P
Suspended Solids (SS), mg/L |
Three
times per week during mid-ebb and mid-flood tides (within ¡Ó 1.75 hour of the
predicted time) |
3 (1 m
below water surface, mid-depth and 1 m above sea bed, except where the water depth
is less than 6 m, in which case the mid-depth station may be omitted.
Should the water depth be less than 3 m, only the mid-depth station will be
monitored). |
Table 4.3 Impact
Water Quality Monitoring Stations
Station |
Description |
East |
North |
IS5 |
Impact Station (Close to HKBCF
construction site) |
811579 |
817106 |
IS(Mf)6 |
Impact Station (Close to HKBCF
construction site) |
812101 |
817873 |
IS7 |
Impact Station (Close to HKBCF
construction site) |
812244 |
818777 |
IS8 |
Impact Station (Close to HKBCF
construction site) |
814251 |
818412 |
IS(Mf)9 |
Impact Station (Close to HKBCF
construction site) |
813273 |
818850 |
IS10 |
Impact Station (Close to HKBCF
construction site) |
812577 |
820670 |
Impact Station (Close to
HKBCF construction site) |
813562 |
820716 |
|
Impact Station (Close to HKBCF
construction site) |
814328 |
819497 |
|
IS17 |
Impact Station (Close to HKBCF
construction site) |
814539 |
820391 |
SR3 |
Sensitive receivers (San Tau SSSI) |
810525 |
816456 |
SR4(N) |
Sensitive receivers (Tai Ho) |
814705 |
817859 |
SR5 |
Sensitive receivers
(Artificial Reef in NE Airport) |
811489 |
820455 |
SR6 |
Sensitive receivers (Sha Chau
and Lung Kwu Chau Marine Park) |
805837 |
821818 |
SR7 |
Sensitive receivers (Tai Mo Do) |
814293 |
821431 |
SR10A |
Sensitive receivers (Ma Wan
FCZ)1 |
823741 |
823495 |
SR10B(N) |
Sensitive receivers (Ma Wan
FCZ)2 |
823683 |
823187 |
Control Station |
809989 |
821117 |
|
Control Station |
817990 |
821129 |
|
CS4 |
Control Station |
810025 |
824004 |
CS6 |
Control Station |
817028 |
823992 |
CSA |
Control Station |
818103 |
823064 |
(a)
The in-situ water quality parameters,
viz. dissolved oxygen, temperature, salinity, turbidity and pH, were measured
by multi-parameter meters (i.e. Model YSI 6820 CE-C-M-Y) and pH meter (i.e. Thermo Orion 230A+)
respectively.
(a)
Digital Differential Global Positioning Systems (DGPS) were used to ensure that the correct location was selected prior to
sample collection.
(b)
Portable, battery-operated echo
sounders were used for the determination of water depth at each designated
monitoring station.
(c)
All in-situ measurements were
taken at 3 water depths, 1 m below water surface, mid-depth and 1 m above sea bed,
except where the water depth was less than 6 m, in which case the mid-depth
station was omitted. Should the water depth be less than 3 m, only the
mid-depth station was monitored.
(d)
At each measurement/sampling
depth, two consecutive in-situ monitoring (DO concentration and saturation,
temperature, turbidity, pH, salinity) and water sample for SS. The probes were
retrieved out of the water after the first measurement and then re-deployed for
the second measurement. Where the difference in the value between the first and
second readings of DO or turbidity parameters was more than 25% of the value of
the first reading, the reading was discarded and further readings were taken.
(e)
Duplicate samples from each
independent sampling event were collected for SS measurement. Water samples
were collected using the water samplers and the samples were stored in
high-density polythene bottles. Water samples collected were well-mixed in the
water sampler prior to pre-rinsing and transferring to sample bottles. Sample
bottles were pre-rinsed with the same water samples. The sample bottles were
then be packed in cool-boxes (cooled at 4oC without being frozen),
and delivered to ALS Technichem (HK) Pty Ltd. for the analysis of suspended
solids concentrations. The laboratory determination work would be started
within 24 hours after collection of the water samples. ALS Technichem (HK) Pty Ltd. is a
HOKLAS accredited laboratory and has comprehensive quality assurance and
quality control programmes. For QA/QC procedures, one duplicate samples of
every batch of 20 samples was analyzed.
(f)
The analysis method and reporting
and detection limit for SS is shown in Table 4.4.
Table 4.4 Laboratory
Analysis for Suspended Solids
Parameters |
Instrumentation |
Analytical Method |
Reporting Limit |
Detection Limit |
Suspended Solid (SS) |
Weighting |
APHA 2540-D |
0.5mg/L |
0.5mg/L |
(g)
Other relevant data were recorded,
including monitoring location / position, time, water depth, tidal stages,
weather conditions and any special phenomena or work underway at the
construction site in the field log sheet for information.
(a)
All in situ monitoring
instruments would be calibrated and calibrated by ALS Technichem (HK) Pty Ltd.
before use and at 3-monthly intervals throughout all stages of the water
quality monitoring programme. Calibration
details are provided in Appendix E.
(b)
The dissolved oxygen probe of YSI
6820 was calibrated by wet bulb method. Before the calibration routine, the
sensor for dissolved oxygen was thermally equilibrated in water-saturated air.
Calibration cup is served as a calibration chamber and it was loosened from
airtight condition before it is used for the calibration. Calibration at ALS
Technichem (HK) Pty Ltd. was carried out once every three months in a water
sample with a known concentration of dissolved oxygen. The sensor was immersed
in the water and after thermal equilibration, the known mg/L value was keyed in
and the calibration was carried out automatically.
(c)
The turbidity probe of YSI 6820
is calibrated two times a month. A zero check in distilled water was performed
with the turbidity probe of YSI 6820 once per monitoring day. The probe will be
calibrated with a solution of known NTU at ALS Technichem (HK) Pty Ltd. once
every three months.
4.7.3.1
For type, location and duration of
works carried out on 8 May 2013, please refer to the above layout map.
4.7.3.2
Exceedances were not due to marine
based construction works of the Project because:
4.7.3.3
Same work at same portion was carried
out on 6 and 10 May 13 while no exceedance was recorded on these two days at
the same tide.
4.7.3.4
The water depth of IS(Mf)9 was
3.3m and 3.4m during mid ebb tide and mid flood tide respectively. The water
depth of IS(Mf)6, IS7 and IS8 were 3.3m, 3.4m and 3.6m respectively during mid
flood tide.
4.7.3.5
Strong wind and rough sea
condition were experienced during the monitoring period, which is likely to
affect the ambient water quality in such shallow water condition.
4.7.3.6
When impact water quality
monitoring was carried out at IS(Mf)6, IS(Mf)9, IS7 and IS8 at Mid-Flood tide
and IS(Mf)9 at Mid-Ebb tide on 8 May 2013, no silty plume was observed to flow
from the inside to the outside of the site boundary.
4.7.3.7
No exceedance was recorded at
IS(Mf)16 and IS17 which are considered downstream of active works during ebb tide and no exceedance was
recorded at IS10 and IS(Mf)11 which are considered downstream of active works
during flood tide.
4.7.3.8
The exceedances recorded were
likely due to local effects in the vicinity at IS(Mf)6, IS(Mf)9, IS7 and IS8.
4.7.3.9
The exceedances were considered as
Non-Project Related.
4.7.3.10
Nevertheless, the Contractor was
reminded to ensure provision of ongoing maintenance to the silt curtains.
4.7.3.11
The Contractor was reminded to
carry out maintenance work once defects were found.
4.7.3.12
Maintenance work of the silt
curtain was carried out by the Contractor on a daily basis except Sunday and
public holiday.
Table 4.5 Summary
of Water Quality Exceedances
Exceedance Level |
DO (S&M) |
DO (Bottom) |
Turbidity |
SS |
Total |
||||||
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
||
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)6 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 (8 May 13) |
0 |
1 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 (8 May 13) |
0 |
1 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS8 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 (8 May 13) |
0 |
1 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)9 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
1 (8 May 13) |
1 (8 May 13) |
0 |
2 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS10 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)11 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)16 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS17 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR3 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR4(N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR5 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR6 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR10A |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR10B (N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
5 |
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Note: S:
Surface; and
M:
Mid-depth.
Table
5.1 Dolphin
Monitoring Equipment
Equipment |
Model |
Commercially licensed motor
vessel |
15m in length with a 4.5m viewing platform |
Global Positioning System (GPS) x2 |
Integrated into T7000 Garmin GPS Map 78C |
Computers (T7000
Tablet, Intel Atom) |
Windows 7/MSO 13 Logger |
Camera |
Nikon D90 300m 2.8D fixed focus Nikon D90 20-400m zoom lens |
Laser Rangefinder |
Infinitor LRF1000/ Kings 950 |
Marine Binocular x3 |
Nexus 7 x 50 marine binocular with
compass and reticules Fujinon 7 x 50
marine binocular with compass and reticules |
Table
5.2 Impact
Dolphin Monitoring Line Transect Co-ordinates (Provided by AFCD)
|
HK Grid System |
Long Lat in WGS84 |
||
ID |
X |
Y |
Long |
Lat |
1 |
804671 |
814577 |
113.870308 |
22.269741 |
1 |
804671 |
831404 |
113.869975 |
22.421696 |
2 |
805475 |
815457 |
113.878087 |
22.277704 |
2 |
805477 |
826654 |
113.877896 |
22.378814 |
3 |
806464 |
819435 |
113.887615 |
22.313643 |
3 |
806464 |
822911 |
113.887550 |
22.345030 |
4 |
807518 |
819771 |
113.897833 |
22.316697 |
4 |
807518 |
829230 |
113.897663 |
22.402113 |
5 |
808504 |
820220 |
113.907397 |
22.320761 |
5 |
808504 |
828602 |
113.907252 |
22.396462 |
6 |
809490 |
820466 |
113.916965 |
22.323003 |
6 |
809490 |
825352 |
113.916884 |
22.367128 |
7 |
810499 |
820690 |
113.926752 |
22.325043 |
7 |
810499 |
824613 |
113.926688 |
22.360464 |
8 |
811508 |
820847 |
113.936539 |
22.326475 |
8 |
811508 |
824254 |
113.936486 |
22.357241 |
9 |
812516 |
820892 |
113.946329 |
22.326894 |
9 |
812516 |
824254 |
113.946279 |
22.357255 |
10* |
813525 |
818270 |
113.956156 |
22.303225 |
10* |
813525 |
824657 |
113.956065 |
22.360912 |
11 |
814556 |
818449 |
113.966160 |
22.304858 |
11 |
814556 |
820992 |
113.966125 |
22.327820 |
12 |
815542 |
818807 |
113.975726 |
22.308109 |
12 |
815542 |
824882 |
113.975647 |
22.362962 |
13 |
816506 |
819480 |
113.985072 |
22.314192 |
13 |
816506 |
824859 |
113.985005 |
22.362771 |
14 |
817537 |
820220 |
113.995070 |
22.320883 |
14 |
817537 |
824613 |
113.995018 |
22.360556 |
15 |
818568 |
820735 |
114.005071 |
22.325550 |
15 |
818568 |
824433 |
114.005030 |
22.358947 |
16 |
819532 |
821420 |
114.014420 |
22.331747 |
16 |
819532 |
824209 |
114.014390 |
22.356933 |
17 |
820451 |
822125 |
114.023333 |
22.338117 |
17 |
820451 |
823671 |
114.023317 |
22.352084 |
18 |
821504 |
822371 |
114.033556 |
22.340353 |
18 |
821504 |
823761 |
114.033544 |
22.352903 |
19 |
822513 |
823268 |
114.043340 |
22.348458 |
19 |
822513 |
824321 |
114.043331 |
22.357971 |
20 |
823477 |
823402 |
114.052695 |
22.349680 |
20 |
823477 |
824613 |
114.052686 |
22.360610 |
21 |
805476 |
827081 |
113.877878 |
22.382668 |
21 |
805476 |
830562 |
113.877811 |
22.414103 |
22 |
806464 |
824033 |
113.887520 |
22.355164 |
22 |
806464 |
829598 |
113.887416 |
22.405423 |
23 |
814559 |
821739 |
113.966142 |
22.334574 |
23 |
814559 |
824768 |
113.966101 |
22.361920 |
Table 5.3 Impact
Dolphin Monitoring Survey Effort Summary, Effort by Area and Beaufort Sea State
Survey |
Date |
Area |
Beaufort |
Effort (km) |
Total Distance Travelled (km) |
1 |
09-05-13 |
NWL |
1 |
59.5 |
64.6 |
09-05-13 |
NWL |
2 |
5.1 |
||
10-05-13 |
NWL |
1 |
10.2 |
47.2 |
|
10-05-13 |
NEL |
0 |
4.1 |
||
10-05-13 |
NEL |
1 |
31.1 |
||
10-05-13 |
NEL |
2 |
1.8 |
||
2 |
24-05-13 |
NWL |
0 |
15.8 |
63.4 |
24-05-13 |
NWL |
1 |
42.7 |
||
24-05-13 |
NWL |
2 |
0.6 |
||
24-05-13 |
NWL |
3 |
4.3 |
||
27-05-13 |
NWL |
2 |
3.2 |
47.9 |
|
27-05-13 |
NWL |
3 |
6.8 |
||
27-05-13 |
NWL |
4 |
0.3 |
||
27-05-13 |
NEL |
1 |
32.1 |
||
27-05-13 |
NEL |
2 |
3.7 |
||
27-05-13 |
NEL |
3 |
1.8 |
||
TOTAL in MAY 2013 |
223.1 |
*Remark:
Surveys conduct under Beaufort Sea State 3 or below are considered
as under favourable condition.
Table 5.4 Impact
Dolphin Monitoring Survey Details in May 2013
Date |
Location |
No. Sightings ¡§on effort¡¨ |
No. Sightings ¡§opportunistic¡¨ |
NW L |
3 |
4 |
|
NEL |
0 |
0 |
|
10-05-13 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
24-05-13 |
NW L |
3 |
3 |
NEL |
0 |
0 |
|
27-05-13 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
TOTAL in May 2013 |
6 |
7 |
Table 5.5 The Encounter Rate of Number of Dolphin Sightings
& Total Number of Dolphins per Area^
Encounter Rate of Number
of Dolphin Sightings (STG)* |
||||||
Date |
NEL Track |
NWL Track |
NEL Sightings |
NWL Sightings |
NEL Encounter Rate |
NWL Encounter Rate |
09 - 10/05/2013 |
37.0 km |
74.8 km |
0 |
3 |
0.0 |
4.0 |
24 & 27/05/2013 |
37.6 km |
73.4 km |
0 |
3 |
0.0 |
4.1 |
Encounter Rate
of Total Number of Dolphins (ANI)** |
||||||
Date |
NEL Track |
NWL Track |
NEL Dolphins |
NWL Dolphins |
NEL Encounter Rate |
NWL Encounter Rate |
09 - 10/05/2013 |
37.0 km |
74.8 km |
0 |
6 |
0.0 |
8.0 |
24 & 27/05/2013 |
37.6 km |
73.4 km |
0 |
5 |
0.0 |
6.8 |
*
Encounter Rate of Number of Dolphin Sightings (STG) presents encounter rates in terms of groups per 100km.
** Encounter Rate of
Total Number of Dolphins (ANI) presents encounter rates
in terms of individuals per 100km. And the encounter rate is not corrected for
individuals, calculation may represent double counting.
^The table is made only for reference to the
quarterly STG & ANI, which were adopted for the Event & Action Plan.
Air Quality
Noise
Water Quality
Chemical and Waste
Management
Landscape and Visual
Impact
Others
Table 6.1 Summary of Environmental Licensing and Permit Status
Statutory Reference |
License/ Permit |
License or Permit No. |
Valid Period |
License/ Permit Holder |
Remarks |
|
From |
To |
|||||
EIAO |
Environmental
Permit |
EP-353/2009/E |
16/10/2012 |
N/A |
HyD |
Hong
Kong ¡V Zhuhai ¡V Macao Bridge Hong Kong Boundary Crossing Facilities |
EP-354/2009/A |
08/12/2010 |
N/A |
Tuen
Mun ¡V Chek Lap Kok Link (TMCLKL Southern Landfall Reclamation only) |
|||
APCO |
NA
notification |
-- |
30/12/2011 |
-- |
CHEC |
Works
Area WA2 and WA3 |
APCO |
NA
notification |
-- |
17/01/2012 |
-- |
CHEC |
Works
Area WA4 |
WDO |
Chemical
Waste Producer Registration |
5213-951-C1186-21 |
30/3/2012 |
N/A |
CHEC |
Chemical
waste produced in Contract HY/2010/02 |
WDO |
Chemical
Waste Producer Registration |
5213-974-C3750-01 |
31/10/2012 |
-- |
CHEC |
Registration
as Chemical Waste Producer at To Kau Wan(WA4) |
WDO |
Chemical
Waste Producer Registration |
5213-839-C3750-02 |
13/09/2012 |
-- |
CHEC |
Registration
as Chemical Waste Producer at TKO 137(FB) |
WDO |
Billing Account for Disposal of Construction
Waste |
7014181 |
05/12/2011 |
N/A |
CHEC |
Waste
disposal in Contract HY/2010/02 |
NCO |
Construction
Noise Permit |
GW-RS0122-13* |
08/02/2013 |
04/08/2013 |
CHEC |
Marine-based
areas in Contract HY/2010/02 |
*One new application was submitted to EPD on 24 May 2013 for
marine works.
- Training
record shows that related toolbox talk training such as handling and storage of
chemical waste for workers and frontline staff are conducted regularly.
- In
addition, all chemical waste arising from Contractor¡¦s construction activities
are packed, labeled and stored properly by the Contractor and collected by
licensed waste collectors.
- Emergency
drill for oil spillage was conducted on 8 August 2012 which allowed workers and
frontline staff to familiar with the spill response procedures.
- As
informed by the Contractor, all response action and incident reporting
procedure would be carried out in compliance with the spill response plan if
there is any accidental spillage of oil or chemical from construction
activities of this contract.
-
Marine-based Works
-
Marine-base
-
Cellular structure installation
-
Connecting arc cell installation
-
Laying geo-textile
-
Sand blanket laying
-
Maintenance of silt curtain & silt screen at sea water
intake of HKIA
-
Stone column installation
-
Laying stone blanket
-
Band drain installation
-
Backfill cellular structure
-
Instrumentation works
-
Rubble mound seawall construction
-
Construction of temporary seawall
-
Ground investigation
Land-based Works
-
Maintenance works of Site Office at Works Area WA2
-
Maintenance works of Public Works Regional Laboratory
at Works Area WA3
-
Geo-textile fabrication at Works Area WA2
-
Silt curtain fabrication at Works Area WA4
-
Construction of Temporary Marine Access at Works Area WA2
-
Site runoff should be properly collected
and treated prior to discharge;
-
Minimize loss of sediment from filling
works;
-
Regular review and maintenance of silt
curtain systems, drainage systems and desilting facilities;
-
Exposed surfaces/soil stockpiles should
be properly treated to avoid generation of silty surface run-off during
rainstorm;
-
Regular review and maintenance of wheel
washing facilities provided at all site entrances/exits;
-
Conduct regular inspection of various
working machineries and vessels within works areas to avoid any dark smoke
emission;
-
Suppress dust generated from work
processes with use of bagged cements, earth movements, excavation activities,
exposed surfaces/soil stockpiles and
haul road traffic;
-
Quieter powered mechanical equipment
should be used;
-
Provision of proper and effective noise
control measures for operating equipment and machinery on-site, such as
erection of movable noise barriers or enclosure for noisy plants;
-
Closely check and replace the sound
insulation materials regularly;
-
Better scheduling of construction works
to minimize noise nuisance;
-
Properly store and label oil drums and
chemical containers placed on site;
-
Proper chemicals, chemical wastes and
wastes management;
-
Maintenance works should be carried out
within roofed, paved and confined areas;
-
Collection and segregation of
construction waste and general refuse on land and in the sea should be carried
out properly and regularly; and
- Proper
protection and regular inspection of existing trees, transplanted/retained
trees.
Air Quality
Impact
l All working plants and vessels on site should be regularly inspected and
properly maintained to avoid dark smoke emission.
l All vehicles should
be washed to remove any dusty materials before leaving the site.
l Haul roads should be
sufficiently dampened to minimize fugitive dust generation.
l Wheel washing
facilities should be properly maintained and reviewed to ensure properly
functioning.
l Temporary exposed
slopes and open stockpiles should be properly covered.
l Enclosure should be
erected for cement debagging, batching and mixing operations.
l Water spraying should be provided to suppress fugitive dust for any dusty
construction activity.
Construction
Noise Impact
l Quieter powered mechanical equipment should be used as far as possible.
l Noisy operations should be oriented to a direction away from sensitive
receivers as far as possible.
l Proper and effective noise control measures for operating equipment and
machinery on-site should be provided, such as erection of movable noise
barriers or enclosure for noisy plants. Closely check and replace the sound
insulation materials regularly
l Vessels and equipment operating should be checked regularly and properly
maintained.
l Noise Emission Label (NEL) shall be affixed to the air compressor and
hand-held breaker operating within works area.
l Better scheduling of construction works to minimize noise nuisance.
Water Quality
Impact
l Regular review and maintenance of silt curtain systems, drainage systems
and desilting facilities in order to make sure they are functioning
effectively.
l Construction of seawall should be completed as early as possible.
l Regular inspect and review the loading process from barges to avoid
splashing of material.
l Silt, debris and leaves accumulated at public drains, wheel washing bays
and perimeter u-channels and desilting facilities should be cleaned up
regularly.
l Silty effluent should be treated/ desilted before discharged. Untreated
effluent should be prevented from entering public drain channel.
l Proper drainage channels/bunds should be provided at the site boundaries
to collect/intercept the surface run-off from works areas.
l Exposed slopes and stockpiles should be covered up properly during
rainstorm.
Chemical and
Waste Management
l All types of wastes, both on land and floating in the sea, should be
collected and sorted properly and disposed of timely and properly. They should
be properly stored in designated areas within works areas temporarily.
l All chemical containers, batteries and oil drums should be properly
stored and labelled.
l All plants and vehicles on site should be properly maintained to prevent
oil leakage. Proper measures,
like drip trays and/or bundings, should be provided for retaining leaked
oil/chemical from plants.
l All kinds of maintenance works should be carried out within roofed,
paved and confined areas.
l All drain holes of the drip trays utilized within works areas should be
properly plugged to avoid any oil and chemical waste leakage.
l Oil stains on soil surface, accumulated oil mixture and empty chemical
containers should be cleared and disposed of as chemical waste.
l Regular review should be conducted for
working barges and patrol boats to ensure sufficient measures and spill control
kits were provided on working barges and patrol boats to avoid any spreading of
leaked oil/chemicals.
Landscape and
Visual Impact
l All existing, retained/transplanted trees at the works areas should be
properly fenced off and regularly inspected.