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 Sea State
Table 5.4 Impact Dolphin
Monitoring Survey Details May 2016
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
Contract 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 2016
Figure 6 Environmental
Complaint Handling Procedures
List of Appendices
Appendix A Contract
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 2016
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 May 2016. As informed by the Contractor, major
activities in the reporting period were:-
-
Sloping
Seawalls
-
Rubble
Mound Seawall
-
Rock
fill
-
Maintenance
of silt curtain & silt screen at sea water intake of HKIA (As
informed by the Contractor, the silt curtain at NE Airport Cooling Water Intake
has been removed on 10 May 2016.)
Land-base
-
Surcharge
removal & laying
-
Deep
Cement Mixing
-
Installations
of Precast Culverts except sloping outfalls
-
Construction
of Sloping Outfalls
-
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 |
5 sessions |
|
1-hour TSP monitoring |
5
sessions |
|
Noise monitoring |
5
sessions |
|
Impact water quality monitoring |
12 sessions |
|
Impact dolphin monitoring |
2
surveys |
|
Joint Environmental site inspection |
4
sessions |
For impact air quality monitoring, no exceedance of 1-Hour TSP or
24-Hour TSP was recorded at all monitoring stations in the reporting month.
Breaches of Action and Limit Levels for Water Quality
Complaint, Notification of Summons and
Successful Prosecution
No complaint, notification of
summons or prosecution was received in the reporting period.
Reporting Change
No reporting change in the reporting month.
Future Key Issues
Key issues to be considered in the coming
month included:
-
Site
runoff should be properly collected and treated prior to discharge;
-
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 |
Paul Appleton |
3698 5889 |
2698 5999 |
|
IEC / ENPO (Ramboll
Environ Hong Kong Limited) |
Independent Environmental Checker |
Raymond Dai |
3465 2888 |
3465 2899 |
|
Environmental Project Office Leader |
Y. H. Hui |
3547 2133 |
3465 2899 |
|
|
Contractor
(China Harbour
Engineering Company Limited) |
Environmental Officer |
Louie Chan |
3693 2254 |
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
-
Sloping
Seawalls
-
Rubble
Mound Seawall
-
Rock
fill
-
Maintenance
of silt curtain & silt screen at sea water intake of HKIA (As
informed by the Contractor, the silt curtain at NE Airport Cooling Water Intake
has been removed on 10 May 2016.)
Land-base
-
Surcharge
removal & laying
-
Deep
Cement Mixing
-
Installations
of Precast Culverts except sloping outfalls
-
Construction
of Sloping Outfalls
-
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 |
|
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 Contract. 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 |
78 |
71-85 |
374 |
500 |
|
AMS3B |
78 |
72-85 |
368 |
500 |
|
AMS7 |
78 |
70-84 |
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 |
42 |
17-61 |
176 |
260 |
|
AMS3B |
37 |
21-63 |
167 |
260 |
|
AMS7 |
59 |
27-95 |
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-73 & 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 |
66 |
64-67* |
75 |
|
NMS3B |
67 |
65-69* |
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 Turbidity Meter |
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 |
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 |
1 |
0 |
1 |
|
|
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 |
0 |
0 |
0 |
|
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
|
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 suspended
solids exceedance was attributed to active construction activities of
this Contract;
3. IEC, Contractor, ER and EPD were
informed via email;
4. Monitoring data, all plant, equipment and
Contractor's working methods were checked;
5. Since it is considered that the suspended solids
exceedance is unlikely to be contract 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 |
815456 |
113.870287 |
22.277678 |
|
1 |
804671 |
831404 |
113.869975 |
22.421696 |
|
2 |
805475 |
815913 |
113.878079 |
22.281820 |
|
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 |
820880 |
113.926749 |
22.326757 |
|
7 |
810499 |
824613 |
113.926688 |
22.360464 |
|
8 |
811508 |
821123 |
113.936539 |
22.328966 |
|
8 |
811508 |
824254 |
113.936486 |
22.357241 |
|
9 |
812516 |
821303 |
113.946320 |
22.330606 |
|
9 |
812516 |
824254 |
113.946279 |
22.357255 |
|
10* |
813525 |
820827 |
113.956112 |
22.326321 |
|
10* |
813525 |
824657 |
113.956066 |
22.360908 |
|
11 |
814556 |
818853 |
113.966155 |
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) |
|
|
05/12/2016 |
NWL |
1 |
12.3 |
108.6 |
|
|
05/12/2016 |
NWL |
2 |
50 |
|
|
1 |
05/13/2016 |
NWL |
1 |
6.8 |
|
|
05/13/2016 |
NWL |
2 |
3 |
||
|
05/13/2016 |
NEL |
1 |
30 |
||
|
05/13/2016 |
NEL |
2 |
5.2 |
||
|
05/13/2016 |
NEL |
3 |
1.3 |
||
|
2 |
05/23/2016 |
NWL |
1 |
16.2 |
109 |
|
05/24/2016 |
NWL |
1 |
45.4 |
||
|
05/24/2016 |
NWL |
2 |
7.9 |
||
|
05/25/2015 |
NWL |
2 |
3.1 |
||
|
05/25/2015 |
NEL |
1 |
4.4 |
||
|
05/25/2015 |
NEL |
2 |
13.6 |
||
|
05/25/2015 |
NEL |
3 |
18.4 |
||
|
TOTAL
in May 2016 |
217.6 |
||||
*Remark: Surveys conduct under Beaufort Sea
State 3 or below are considered as under favourable condition.
Table 5.4 Impact Dolphin Monitoring Survey Details May 2016
|
Date |
Location |
No.
Sightings ¡§on effort¡¨ |
No.
Sightings ¡§opportunistic¡¨ |
|
05/12/2016 |
NWL |
1 |
0 |
|
NEL |
0 |
0 |
|
|
05/13/2016 |
NWL |
0 |
0 |
|
NEL |
0 |
0 |
|
|
05/23/2016 |
NWL/WL |
1 |
7* |
|
NEL |
0 |
0 |
|
|
05/24/2016 |
NWL |
2 |
0 |
|
NEL |
0 |
0 |
|
|
05/25/2016 |
NWL |
0 |
0 |
|
NEL |
0 |
0 |
|
|
TOTAL in MAY 2016 |
4 |
7 |
|
* Group of dolphin was sighted at WL area while vessel
based dolphin monitoring was conducted in NWL
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 |
|
12 and 13 May 16 |
36.5 |
72.1 |
0 |
1 |
0.0 |
1.4 |
|
23, 24 and 25 May 16 |
36.4 |
72.6 |
0 |
3 |
0.0 |
4.1 |
|
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 |
|
12 and 13 May 16 |
36.5 |
72.1 |
0 |
2 |
0.0 |
2.8 |
|
23, 24 and 25 May 16 |
36.4 |
72.6 |
0 |
12 |
0.0 |
16.5 |
* 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/K |
11/04/2016 |
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 |
-- |
25/07/2014 |
-- |
CHEC |
Works Area WA1 |
|
WDO |
Chemical Waste Producer Registration |
5213-951-C1186-30 |
28/10/2015 |
N/A |
CHEC |
Chemical waste produced in Contract HY/2010/02
(WA1) |
|
WDO |
Chemical Waste Producer Registration |
5213-951-C1186-21 |
30/3/2012 |
N/A |
CHEC |
Chemical waste produced in Contract HY/2010/02
(WA2) |
|
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-RE0385-16 |
19/04/2016 |
14/10/2016 |
CHEC |
Section of TKO Fill Bank under Contract HY/2010/02 |
|
NCO |
Construction Noise Permit |
GW-RS0095-16 |
05/02/2016 |
03/08/2016 |
CHEC |
Reclamation Works in Contract HY/2010/02 |
Marine-base
- Sloping Seawalls
- Rubble Mound
Seawall
- Re-alignment and
maintenance of silt curtain
Land-base
- Surcharge removal
& laying
- Deep Cement
Mixing
- Installations of
Precast Culverts except sloping outfalls
- 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 June and July 2016 will be changed subject to works progress.
- Site runoff should be
properly collected and treated prior to discharge;
- 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.