TABLE OF CONTENTS
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
Table 5.4 Impact Dolphin
Monitoring Survey Details in June 2012
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 Sightings in June 2012
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 June 2012
Appendix I Impact Daytime
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 Sightings
Appendix
M Monthly
Summary of Waste Flow Table
This report documents the findings of EM&A works
conducted in the period between 1 and 30 June 2012. As informed by the
Contractor, major activities in the reporting period were:-
Marine-based Works
-
Construction of cellular
wall;
-
Geotextile laying
and fabrication;
-
Stone
column installation trial;
-
Silt
curtain fabrication and deployment; and
-
Stone
blankets laying.
Land-based Works
-
Site office erection and construction at Works Area
WA2;
-
Public Works Regional Laboratory erection and
construction at Works Area WA3; and
-
Constructing site access at area WA2 to
Ying Hei Road, Tung Chung.
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 |
Day, evening and night time noise monitoring |
4 sessions |
Impact water quality monitoring |
13 sessions |
Impact dolphin monitoring |
6 sessions |
Joint Environmental site inspection |
4 sessions |
Breaches of Action
and Limit Levels for Air Quality
No
Action/Limit Level exceedance of 1-hour TSP and 24-hour TSP results was recorded in the reporting
month.
Breaches of Action and
Limit Levels for Noise
No
Action/Limit Level exceedance of construction noise was recorded in the
reporting month.
Breaches of Action
and Limit Levels for Water Quality
Two (2) Action Level exceedances were recorded at measured suspended
solid (SS) in the reporting
month. Investigation results show that the exceedances were not due to the Project works.
Impact Dolphin Monitoring
A total of
eighteen dolphin sightings were recorded during the six surveys, one on the 12th
June, two on the 13th June, seven on the 14th of June, three on the 15th June
and five on the 20th June. No
dolphins were seen on the 25th June.
Of the eighteen sightings, thirteen were ˇ§on effortˇ¨ and five were ˇ§off
effortˇ¨.
The
predominant behavior of the dolphin observed was
engaged in feeding but only one group was associated with fishing vessel (hang
trawler) at the time of the sighting.
No other
active construction sites were noted during the surveys within Hong Kong
waters. Marine construction work
was noted close to the Hong KongˇVChina maritime border in Chinese waters and
dolphins were observed in this area (near Tai O).
Complaint, Notification of
Summons and Successful Prosecution
No Project related environmental complaint was received in the reporting month.
No notification of summons and successful prosecution was received in the reporting month.
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 |
Engineerˇ¦s Representative (ER) (Ove Arup & Partners Hong Kong Limited) |
Chief Resident Engineer |
Michael Lo |
2528 3031 |
2668 3970 |
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 |
C. M. Wong |
9448 0325 |
-- |
|
ET (AECOM Asia
Company Limited) |
ET Leader |
Echo Leong |
3922 9280 |
2317 7609 |
Marine-based Works
-
Construction of cellular
wall;
-
Geotextile laying and fabrication;
-
Stone column
installation trial;
-
Silt
curtain fabrication and deployment; and
-
Stone
blankets laying.
Land-based Works
-
Site
office erection and construction at Works Area WA2;
-
Public
Works Regional Laboratory erection and construction at Works Area WA3; and
-
Constructing
site access at area WA2 to Ying Hei Road, Tung Chung.
-
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 |
*Remark: Permission
on setting up and carrying out impact monitoring works was sought, however, access to the premise has not been granted yet on this report issuing
date.
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 ˇÓ2.5%
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 Manufacturerˇ¦s Instruction Manual as
follows:-
(i)
Turn the power on.
(ii)
Close the air collecting opening cover.
(iii)
Push the ˇ§TIME SETTINGˇ¨ switch to [BG].
(iv)
Push ˇ§START/STOPˇ¨ 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 ˇ§SPAN CHECKˇ¨
is indicated in the display.
(vii)
Push ˇ§START/STOPˇ¨ 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 ˇ§TIME SETTINGˇ¨ switch the time set in the display
to 3 hours.
(x)
Lower down the air collection opening cover.
(xi)
Push ˇ§START/STOPˇ¨ 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 |
73.0 |
66.8 ˇV 77.1 |
374 |
500 |
AMS3A |
77.0 |
62.5 ˇV 86.7 |
368 |
500 |
AMS7 |
71.3 |
63.8 ˇV 76.2 |
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 |
33.4 |
13.0 ˇV 43.6 |
176 |
260 |
AMS3A |
47.4 |
25.1 ˇV 90.9 |
167 |
260 |
AMS7 |
43.4 |
28.5 ˇV 54.0 |
183 |
260 |
Table 3.1 Noise
Monitoring Equipment
Equipment |
Brand and Model |
Integrated Sound Level Meter |
Rion NL-31 |
Acoustic Calibrator |
Rion NC-73 |
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 |
1m from the exterior façade of the container office 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)
Façade measurements were made at NMS3A.
(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 ˇV 1900 on normal weekdays; Leq(5-minutes) during restricted
hours i.e. 19:00 ˇV 23:00 and
23:00 ˇV 07:00 of normal weekdays, whole day of Sundays and Public Holidays.
(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 |
68.8* |
60.8 ˇV 73.5* |
75 |
NMS3A |
69.6 |
56.7 ˇV 74.8 |
75 |
*+3dB(A) Façade correction included
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 |
ˇP
Depth, m ˇP
Temperature, oC ˇP
Salinity,
ppt ˇP
Dissolved Oxygen (DO), mg/L ˇP
DO Saturation, % ˇP
Turbidity, NTU ˇP
pH ˇP
Suspended Solids (SS), mg/L |
Three times per week during mid-ebb and mid-flood
tides (within ˇÓ 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 accrediated
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 once per monitoring day 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 |
1 (18 June 12) |
0 |
1 (18 June 12) |
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 |
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 |
1 (4 June 12) |
0 |
1 (4 June 12) |
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 |
1 |
0 |
0 |
0 |
0 |
0 |
2 (4; 18 June
12) |
|
|
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 |
Garmin 18X-PC Geo One Phottix |
Computers (Corei7) x2 |
Windows /MSO 10 Logger |
AIS receiver |
Logger ˇV GPS linked |
Camera |
Nikon D90 300m 2.8D fixed focus Nikon D90
20-300m zoom lens |
Laser Rangefinder |
Infinitor LRF1000/Visionking 900 |
Marine Binocular x3 |
Nexus 7 x 50 marine binocular with compass and
reticules Fujinn 7 x 50 marine binocular with compass and reticules
|
ˇP Northeast Lantau survey area; and
ˇP Northwest Lantau survey area.
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
Date |
Status |
Sea State |
Distance (km) |
(on effort only) |
|||
12-6-12 |
ON |
0.5 |
20.5 |
12-6-12 |
ON |
1 |
4.6 |
12-6-12 |
ON |
1.5 |
17.8 |
12-6-12 |
ON |
2 |
1.9 |
12-6-12 |
ON |
2.5 |
5.3 |
12-6-12 |
ON |
3 |
2.8 |
Total |
52.9 |
||
13-06-12 |
ON |
0.5 |
32.6 |
13-06-12 |
ON |
1 |
17.7 |
Total |
50.3 |
||
14-06-12 |
ON |
0.5 |
13.7 |
14-06-12 |
ON |
1 |
22.5 |
14-06-12 |
ON |
1.5 |
5.6 |
14-06-12 |
ON |
2 |
32.5 |
14-06-12 |
ON |
2.5 |
8.1 |
Total |
82.4 |
||
15-06-12 |
ON |
1 |
13.8 |
15-06-12 |
ON |
1.5 |
5.3 |
15-06-12 |
ON |
2 |
28.5 |
15-06-12 |
ON |
2.5 |
3.3 |
15-06-12 |
ON |
3 |
8 |
Total |
58.9 |
||
20-06-12 |
ON |
1 |
31.5 |
20-06-12 |
ON |
1.5 |
40.3 |
20-06-12 |
ON |
2 |
10.1 |
Total |
81.9 |
||
25-06-12 |
ON |
2 |
15.9 |
25-06-12 |
ON |
2.5 |
14.9 |
25-06-12 |
ON |
3 |
4.3 |
Total |
35.1 |
||
TOTAL JUNE 2012 |
361.5 |
Table 5.4 Impact
Dolphin Monitoring Survey Details in June 2012
Date |
Location |
No. Sightings
ON EFFORT |
No. Sightings
OFF EFFORT |
Total km ON
EFFORT |
12-06-12 |
NW Lantau |
0 |
1 |
52.9 |
13-06-12 |
NW and NE Lantau |
2 |
0 |
50.3 |
14-06-12 |
NW Lantau |
6 |
1 |
82.4 |
15-06-12 |
NW and NE Lantau |
2 |
1 |
58.9 |
20-06-12 |
NW Lantau |
3 |
2 |
81.9 |
25-06-12 |
NW Lantau and NE Lantau |
0 |
0 |
35.1 |
Total km ON EFFORT June 2012 |
361.5 |
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/D |
07/03/2012 |
N/A |
HyD |
Hong Kong ˇV Zhuhai ˇV Macao Bridge Hong Kong Boundary Crossing
Facilities |
EP-354/2009/A |
08/12/2010 |
N/A |
Tuen Mun ˇV 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 |
WPCO |
Discharge License |
N/A |
Application in process |
N/A |
CHEC |
Discharge of Construction
Runoff |
WDO |
Chemical Waste Producer
Registration |
5213-951-C1186-21 |
30/3/2012 |
N/A |
CHEC |
Chemical waste produced in
Contract HY/2010/02 |
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-RS0392-12 |
16/4/2012 |
15/10/2012 |
CHEC |
Marine-based areas in Contract
HY/2010/02 |
NCO |
Construction Noise Permit |
GW-RS0378-12 |
16/4/2012 |
15/10/2012 |
CHEC |
Works Area WA3 in Siu Ho Wan |
NCO |
Construction Noise Permit |
GW-RS0430-12 |
27/4/2012 |
18/10/2012 (Cancelled from 1900 on 6 June
2012) |
CHEC |
Works Area WA2 in Tung Chung |
NCO |
Construction Noise Permit |
GW-RS0616-12 |
6/6/2012 |
5/12/2012 |
CHEC |
Works Area WA2 in Tung Chung |
Details
of these two Action Level exceedances are shown in
Section 4.7.3 and Appendix J.
Marine-based Works
-
Geotextile laying
and fabrication;
-
Stone
column installation trial;
-
Construction
of cellular wall;
-
Construction
of seawalls;
-
Silt
curtain fabrication and deployment; and
-
Stone
blankets laying.
Land-based Works
-
Site office
erection and construction at Works Area WA2;
-
Public
Works Regional Laboratory erection and construction at Works Area WA3; and
-
Constructing
site access at area WA2 to Ying Hei Road, Tung Chung.
- 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 and oil drums should be properly stored and labelled.
l All plants and
vehicles on site should be properly maintained to prevent oil leakage.
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 and empty chemical containers should be cleared and disposed of as
chemical waste.
Landscape and Visual Impact
l All existing,
retained/transplanted trees at the works areas should be properly fenced off
and regularly inspected.