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
7.2 Construction
Programme for the Coming Months
7.3 Key
Issues for the Coming Month
7.4 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 Sea State
Table 5.4 Impact Dolphin Monitoring Survey Details March 2015
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 March 2015
Figure 6 Environmental
Complaint Handling Procedures
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 March 2015
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
This report
documents the findings of EM&A works conducted in the period between 1 and 31 March
2015. As informed
by the Contractor, major activities in the reporting period were:-
Marine-base
-
Cellular structure installation and
backfilling
-
Capping Beams structures
-
Conforming sloping seawalls
-
Surcharge remove & laying
-
Earthwork fill
-
Deep Cement Mixing
-
Jet grout columns works
-
Geotechnical Instrumentation works
-
Maintenance of silt curtain & silt
screen at sea water intake of HKIA
Land-base
-
Maintenance works of Site Office at
Works Area WA2
-
Maintenance works of Public Works
Regional Laboratory at Works Area WA3
-
Maintenance 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 |
5 sessions |
Impact
water quality monitoring |
13 sessions |
Impact
dolphin monitoring |
2
surveys |
Joint
Environmental site inspection |
4
sessions |
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 Water Quality
For water quality,
two (2) Action Level Exceedances of SS at IS10 and SR5
during Flood tide were recorded on 23 March 2015. No Action and Limit Level exceedances were recorded on other monitoring date in the
reporting month. After investigation, there is no adequate information
to conclude the recorded exceedances are related to
this Contract.
Behaviour:
Of the five sightings, one group was noted as feeding, three group
has boat association behavior and one group was noted as travelling, locations
of sighting with different behaviour are mapped in
Figure 5d
Complaint,
Notification of Summons and Successful Prosecution
As
informed by the Contractor on 09 March 2015, there is an air quality complaint
received on 06 March 2015. The complainant Mr. Fung requested for
follow-up actions to be taken by relevant departments in response to his
Complaint about sand and dust emission from 4-5 uncovered sand barges parking
near the coastline of Tuen Mun,
the complainant concerns about the health problems to residents as the sand is
blown to their apartments. After investigation, there is no
adequate information to conclude the observed impact is related to this
Contract.
No
notification of summons or prosecution was received in the reporting period
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.
-
Control night-time lighting and glare
by hooding all lights.
-
Regular review and provide maintenance
to dust control measures such as sprinkler system.
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 |
3465 2888 |
3465 2899 |
Environmental
Project Office Leader |
Y. H. Hui |
3465 2868 |
3465 2899 |
|
Contractor (China
Harbour Engineering Company Limited) |
Environmental
Officer |
Richard Ng
|
36932253 |
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-base
-
Cellular structure installation and
backfilling
-
Capping Beams structures
-
Conforming sloping seawalls
-
Surcharge remove & laying
-
Earthwork fill
-
Deep Cement Mixing
-
Jet grout columns works
-
Geotechnical Instrumentation works
-
Maintenance of silt curtain & silt
screen at sea water intake of HKIA
Land-base
-
Maintenance works of Site Office at
Works Area WA2
-
Maintenance works of Public Works
Regional Laboratory at Works Area WA3
-
Maintenance 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 |
AMS3B |
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 |
AMS7A |
Chu Kong Air-Sea Union Transportation Company Limited |
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 25 ¢XC and not variable by
more than ¡Ó3 ¢XC; the relative humidity (RH) was < 50% and not variable by
more than ¡Ó5%. A convenient working RH was 40%.
(iii)
All filter
papers were prepared and analysed by ALS Technichem (HK) Pty Ltd., which is a HOKLAS accredited
laboratory and has comprehensive quality assurance and quality control programmes.
(c)
Field
Monitoring
(i)
The power
supply was checked to ensure the HVS works properly.
(ii)
The filter
holder and the area surrounding the filter were cleaned.
(iii)
The filter
holder was removed by loosening the four bolts and a new filter, with stamped
number upward, on a supporting screen was aligned carefully.
(iv)
The filter
was properly aligned on the screen so that the gasket formed an airtight seal
on the outer edges of the filter.
(v)
The swing
bolts were fastened to hold the filter holder down to the frame. The pressure applied was sufficient to
avoid air leakage at the edges.
(vi)
Then the
shelter lid was closed and was secured with the 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-5025A Calibration Kit prior to
the commencement of baseline monitoring. Bi-monthly 5-point calibration of the
HVS will be carried out during impact monitoring.
(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 |
77 |
72-85 |
374 |
500 |
AMS3B |
77 |
72-84 |
368 |
500 |
AMS7A |
78 |
72-84 |
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 |
55 |
35-96 |
176 |
260 |
AMS3B |
62 |
47-95 |
167 |
260 |
AMS7A |
36 |
24-50 |
183 |
260 |
Table 3.1 Noise
Monitoring Equipment
Equipment |
Brand and
Model |
Integrated Sound
Level Meter |
Rion NL-31 & B&K2238 |
Acoustic
Calibrator |
Rion NC-74 & B&K 4231 |
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 |
NMS3B |
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 1.2 m above the ground for free-field
measurements at NMS2. A correction of +3 dB(A) shall
be made to the free field measurements.
(b)
All measurement at NMS3B were free field measurements in the
reporting month at NMS3B. 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 5m/s, or wind with gusts exceeding 10m/s. The wind
speed shall be checked with a portable wind speed meter capable of measuring
the wind speed in m/s.
(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 |
68 |
67-69* |
75 |
NMS3B |
67 |
64-68* |
70/65^ |
*+3dB(A) Façade correction
included
^ Daytime noise Limit Level of 70 dB(A) applies to
education institutions, while 65dB(A) applies during school examination period.
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 and Lowrance
x-4 |
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.
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 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS8 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)9 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS10 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
(1) 23 Mar15 |
0 |
1 |
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 |
(1) 23 Mar15 |
0 |
1 |
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 |
0 |
2 |
2 |
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Note: S:
Surface; and
M: Mid-depth.
1.
Not applicable as SS was not measured in
situ;
2.
After considering the above mentioned
investigation results, it appears that it was unlikely that the SS exceedances were attributed to active construction
activities of this Contract;
3.
IEC, contractor and ER were informed via
email;
4.
Monitoring data, all plant, equipment and
Contractor's working methods were checked;
5.
Since it is considered that the SS exceedance is unlikely to be project related, as such,
actions 5-7 under the EAP are not considered applicable.
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 76C |
Computers (T7000 Tablet, Intel Atom)
|
Windows 7/MSO 13 Logger |
Camera |
Nikon D7100 300m 2.8D fixed focus Nikon D90 80-400mm zoom lens |
Laser Rangefinder |
Range Finder Bushnell 1000m |
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 |
03/19/2015 |
NWL |
1 |
67 |
67 |
|
03/20/2015 |
NWL |
1 |
6.1 |
42.6 |
||
03/20/2015 |
NEL |
1 |
30.3 |
|||
03/20/2015 |
NEL |
2 |
6.2 |
|||
2 |
03/30/2015 |
NWL |
0 |
1.8 |
63.3 |
|
03/30/2015 |
NWL |
1 |
53 |
|||
03/30/2015 |
NWL |
2 |
8.5 |
|||
03/31/2015 |
NWL |
1 |
4.9 |
46 |
||
03/31/2015 |
NWL |
2 |
5 |
|||
03/31/2015 |
NEL |
1 |
30.3 |
|||
03/31/2015 |
NEL |
2 |
5.8 |
|||
TOTAL in March 2015 |
218.9 |
*Remark:
Surveys conduct under Beaufort Sea State 3 or below are considered as under favourable condition.
Table 5.4 Impact
Dolphin Monitoring Survey Details March 2015
Date |
Location |
No. Sightings ¡§on effort¡¨ |
No. Sightings ¡§opportunistic¡¨ |
03/19/2015 |
NW L |
2 |
1 |
NEL |
0 |
0 |
|
03/20/2015 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
03/30/2015 |
NW L |
1 |
1 |
NEL |
0 |
0 |
|
03/31/2015 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
TOTAL in March 2015 |
3 |
2 |
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 (km) |
NWL
Track (km) |
NEL
Sightings |
NWL
Sightings |
NEL
Encounter Rate |
NWL
Encounter Rate |
19 & 20 March 2015 |
36.5 |
73.1 |
0 |
2 |
0.0 |
2.7 |
30 & 31 March 2015 |
36.1 |
73.2 |
0 |
1 |
0.0 |
1.4 |
Encounter Rate of Total Number of
Dolphins (ANI)** |
||||||
Date |
NEL
Track (km) |
NWL
Track (km) |
NEL
Dolphins |
NWL
Dolphins |
NEL
Encounter Rate |
NWL
Encounter Rate |
19 & 20 March 2015 |
36.5 |
73.1 |
0 |
4 |
0.0 |
5.5 |
30 & 31 March 2015 |
36.1 |
73.2 |
0 |
3 |
0.0 |
4.1 |
* 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/H |
19/01/2015 |
N/A |
HyD |
Hong Kong ¡V Zhuhai ¡V Macao
Bridge Hong Kong Boundary Crossing Facilities |
EP-354/2009/D |
13/03/2015 |
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-RS0049-15 |
20/01/2015 |
17/03/2015 |
CHEC |
Reclamation
Works in Contract HY/2010/02 |
NCO |
Construction
Noise Permit |
GW-RS0270-15 |
18/03/2015 |
20/06/2015 |
CHEC |
Reclamation
Works in Contract HY/2010/02 |
NCO |
Construction
Noise Permit |
GW-RE1405-14 |
22/12/2014 |
21/06/2015 |
CHEC |
Section of
TKO Fill Bank under Contract HY/2010/02 |
-
Date of the observed impact was not specified by
the complainant so the site activities/active construction works within the
complaint period 2-6 March 2015 were reviewed.
-
1hr TSP and 24hrs TSP monitoring data within the
complaint period 1- 16 March 2015 have been reviewed.
-
Site inspections were conducted jointly with RSS
and the Contractor on 12 March 2015.
-
There is no sufficient information provided by the
complainant to make sure that the concerned barges are related to this project.
-
Date of the observed impact was not specified by
the complainant so the impact air quality monitoring (IAQM) results within the
period 1- 16 March 2015 for monitoring stations close to the concerned area ¡V
AQMS1, ASR1, ASR5, ASR6 and ASR10 have been reviewed, AL/LL exceedance
of 24hr TSP and 1-hr was not recorded within the period 1- 16 March 2015.
-
In addition, the sand delivery record from 2 to 6
March 2015 provided by the Contractor shows that there was no delivery of sand
material by pelican barge from 2 to 6 March 2015.
-
Furthermore, site inspections were conducted
jointly with RSS and the Contractor on 12 March 2015, no generation of fugitive
dust and barges loaded with sand material were observed.
Marine-base
-
Cellular
structure installation and backfilling
-
Capping
Beams structures
-
Conforming
sloping seawalls
-
Surcharge
remove & laying
-
Marine fill
-
Earthwork
fill
-
Deep Cement
Mixing
-
Jet grout
columns works
-
Geotechnical
Instrumentation works
-
Removal of
Temporary Seawall
-
Installations
of Precast Culverts except sloping outfalls
-
Maintenance
of silt curtain & silt screen at sea water intake of HKIA
Land-base
-
Maintenance
works of Site Office at Works Area WA2
-
Maintenance
works of Public Works Regional Laboratory at Works Area WA3
-
Maintenance
of Temporary Marine Access at Works Area WA2
*Construction
activities in April and May 2015 will be changed subject to works progress.
-
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.
-
Control night-time
lighting and glare by hooding all lights.
-
Regular review and
provide maintenance to dust control measures such as sprinkler system.
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.
l Regular
review and provide maintenance to dust control measures such as sprinkler
system.
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, enclosure for noisy plants or
enhancement works to provide sufficient acoustic decoupling measure(s).
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 Acoustic decoupling measures should be
properly implemented for all existing and incoming construction vessels with
continuous and regularly checking to ensure effective implementation of
acoustic decoupling measures.
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.
l Control night-time lighting and glare by hooding
all lights.
[1] A noteworthy
observation is to show that either the conduct of the surveys themselves is
affected, i.e., the noted vessel or works impedes the progress or view of the survey
platform. In addition, the vessel or construction works may be different or
additional to that observed previously and further, are of such a nature that
they are a likely to create an impact on the movement or behaviour
of the subject of the impact survey, in this case, the dolphins.