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 Detail December 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 December
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 December 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 December 2016. As informed by the Contractor, major activities in
the reporting period were:-
-
Sloping Seawalls
-
Rubble Mound Seawall
-
Maintenance of silt curtain
Land-base
-
Surcharge removal & laying
-
Construction of Permanent Seawall
-
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 |
6 sessions |
|
1-hour TSP monitoring |
6
sessions |
|
Noise monitoring |
5
sessions |
|
Impact water quality monitoring |
13 sessions |
|
Impact dolphin monitoring |
2
surveys |
|
Joint Environmental site inspection |
5
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
IEC/ENPO received an environmental complaint
referred by EPD on 1 December 2016. The complaint content provided by EPD
is extracted as follows. The Complainant complained that there is a large
quantity of slurry at East Coast Road, and suspected that the source of the
slurry is a construction site of CHEC next to a hotel. After investigation,
there is no adequate information to conclude the complaint is related to this
Contract.
RSS received a complaint received an
environmental complaint referred Government’s hotline (1823) on 2 December
2016.The Complainant complained that, “the whole stretch of East Coast Road
& Tung Fai Road is truly disgusting. The stone debris big and small and the
mud is a nuisance to those who use the road every day. When dry there is a lot
of dust and when it rains or when the road washing trucks are out it becomes a muddy
mess. Cars and pedestrians are covered in dust or mud, cars are hit by stones
is a daily hazard. Washing of construction vehicles is inadequate as the sand
and soil is carried out onto the roads. Oversight of road conditions is not
carried out by the Airport Authority. An alternative route should be created
for the large number of construction vehicles as they drive fast.” After
investigation, there is no adequate information to conclude the complaint is
related to this Contract.
A noise complaint was referred to the ENPO at
8:56 am on the 14 December 2016 by EPD; ENPO referred this complaint to this
Contract on the same day. With referred to a complaint lodged by a member of
the public about hammering noise was generated from manual construction
activities at unidentified source near the HZMB construction sites at night
time. The complainant stated that the noise nuisance lasted for a month. After
reviewing the information provided by the complainant and checking with the
Contractor, the only construction activity conducted at night time in the past
month was transportation of filling material for this Contact HY/2010/02,
neither hammering activities nor manual construction activities which might
cause noise nuisance were conducted in the past month, as such, it is
considered that the complaint is not related to this Contract.
A complaint was received on 28 December 2016, and
the complainant complained that construction site of artificial island of Hong
Kong- Zhuhai-Macao Bridge has severer mosquito infestation and furthermore, the
complainant complained the poor hygiene and insufficient washing facility on
works are of CHEC, and requested follow-up actions. The complaint was under investigation in the reporting month,
investigation actions and results will be reported in the next reporting month.
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 |
3465 2850 |
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
-
Maintenance of silt curtain
Land-base
-
Surcharge removal & laying
-
Construction of Permanent Seawall
-
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 ±2.5% 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 °C and not variable by more
than ±3 °C; the relative humidity (RH) was < 50% and not variable by more
than ±5%. 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 |
71 |
67-75 |
374 |
500 |
|
AMS3B |
71 |
68-74 |
368 |
500 |
|
AMS7 |
72 |
69-75 |
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 |
77 |
44-119 |
176 |
260 |
|
AMS3B |
63 |
36-101 |
167 |
260 |
|
AMS7 |
78 |
34-127 |
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 – 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 |
67 |
65-68* |
75 |
|
NMS3B |
68 |
67-69* |
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 |
·
Depth, m ·
Temperature, oC ·
Salinity,
ppt ·
Dissolved Oxygen (DO), mg/L ·
DO Saturation, % ·
Turbidity, NTU ·
pH ·
Suspended Solids (SS), mg/L |
Three times per week during
mid-ebb and mid-flood tides (within ± 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 |
(1) 14
Dec 2016 |
0 |
(1) 14
Dec 2016 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
IS10 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
IS(Mf)11 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
IS(Mf)16 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
IS17 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR3 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR4(N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR5 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR6 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR10A |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
SR10B (N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Total |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
|
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Note: S:
Surface; and
M: Mid-depth.
Photo record which shows the sea
condition and surrounding of monitoring location (IS(Mf)9
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 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 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) |
|
1 |
12/01/2016 |
NWL |
1 |
2.7 |
108.9 |
|
12/01/2016 |
NWL |
2 |
36.9 |
||
|
12/01/2016 |
NWL |
3 |
26.4 |
||
|
12/02/2016 |
NWL |
1 |
6.1 |
||
|
12/02/2016 |
NEL |
1 |
36.8 |
||
|
2 |
12/28/2016 |
NWL |
1 |
10.4 |
109.1 |
|
12/28/2016 |
NWL |
2 |
17.3 |
||
|
12/28/2016 |
NWL |
3 |
6.4 |
||
|
12/29/2016 |
NWL |
1 |
5 |
||
|
12/29/2016 |
NWL |
2 |
5.5 |
||
|
12/29/2016 |
NWL |
3 |
15.4 |
||
|
12/29/2016 |
NWL |
4 |
12.4 |
||
|
12/29/2016 |
NEL |
1 |
11.7 |
||
|
12/29/2016 |
NEL |
2 |
22.9 |
||
|
12/29/2016 |
NEL |
3 |
2.1 |
||
|
TOTAL in December 2016 |
218 |
||||
*Remark: Surveys conduct under Beaufort Sea State 3 or
below are considered as under favourable condition.
Table 5.4 Impact Dolphin Monitoring
Survey Detail December 2016
|
Date |
Location |
No. Sightings “on effort” |
No. Sightings “opportunistic” |
|
12/01/2016 |
NWL |
1 |
1 |
|
NEL |
0 |
0 |
|
|
12/02/2016 |
NWL |
0 |
0 |
|
NEL |
0 |
0 |
|
|
12/28/2016 |
WL* |
0 |
1* |
|
NEL |
0 |
0 |
|
|
12/29/2016 |
NWL |
0 |
0 |
|
NEL |
0 |
0 |
|
|
TOTAL in December 2016 |
1 |
2 |
|
* 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 |
|
1&2 Dec 2016 |
36.8 |
72.1 |
0 |
1 |
0 |
1.4 |
|
28&29
Dec 2016 |
36.7 |
60 |
0 |
0 |
0 |
0 |
|
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 |
|
1&2 Dec 2016 |
36.8 |
72.1 |
0 |
2 |
0 |
2.8 |
|
28&29
Dec 2016 |
36.7 |
60 |
0 |
0 |
0 |
0 |
* 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 –
Zhuhai – Macao Bridge Hong Kong
Boundary Crossing Facilities |
|
EP-354/2009/D |
13/03/2015 |
N/A |
Tuen Mun – 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-RS1231-16 |
13/12/2016 |
10/4/2017 |
CHEC |
Reclamation
Works in Contract HY/2010/02 |
·
Review of the
information provided by the complainant
·
Checking whether
there were any construction activities under Contract HY/2010/02 which would
generate large amount of mud/sediment.
·
Review of the information provided by the
complainant
·
Checking whether there were any construction
activities under Contract HY/2010/02 which would generate large amount of dust
and mud/slurry.
·
Review of the observations made during site
inspection jointly conducted with Contractor and RSS on 1 and 8 December 2016.
·
Review of the information provided by the
complainant
·
Checking the construction activities of this
Contract HY/2010/02 at night time in November and December 2016
Marine-base
-
Sloping Seawalls
-
Rubble Mound Seawall
-
Maintenance of silt curtain
Land-base
-
Surcharge removal & laying
-
Construction of Permanent Seawall
-
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 January 2017 and February 2017 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.