Prepared by: LAW, Sau Yee Senior Environmental Officer
Checked by: LAU, Chi Leung
Environmental
Team Leader
Issue Date:
1911 February March 2014 Report
No.: ENA40347191
TABLE OF CONTENTS Page
1.0 |
1 |
|
2.0 |
|
|
|
2.1 Construction Programme |
1 |
|
2.2 Project Organization and Management Structure |
1 |
|
2.3 Contact Details of Key Personnel |
1 |
3.0 |
2 |
|
4.0 |
|
|
|
4.1 Monitoring Requirement |
2 |
|
4.2 Monitoring Equipment |
2 |
|
4.3 Monitoring Parameters, Frequency and Duration |
2 |
|
4.4 Monitoring Locations and Schedule |
2 |
|
4.5 Monitoring Methodology |
3 |
|
4.6 Action and Limit levels |
3 – 4 |
|
4.7 Event-Action Plans |
4 |
|
4.8 Results and Observations |
4 |
5.0 |
|
|
|
5.1 Monitoring Requirements |
4 |
|
5.2 Monitoring Locations |
4 |
|
5.3 Monitoring Parameters and Frequency |
4 |
|
5.4 Monitoring Methodology and Equipment Used |
5 – 6 |
|
5.5 Action and Limit Levels |
6 |
|
5.6 Event and Action Plan |
7 |
|
5.7 Monitoring Duration and Period in this reporting month |
7 |
|
5.8 Marine Water Monitoring Results |
7 |
6.0 |
|
|
|
6.1
Monitoring Requirements |
7 |
|
6.2
Monitoring Equipment |
8 |
|
6.3 Monitoring
Parameters, Duration and Frequency |
8 |
|
6.4
Monitoring Locations and Period |
8 |
|
6.5
Monitoring Procedures and Calibration Details |
8 – 9 |
|
6.6
Action and Limit levels |
9 |
|
6.7
Event-Action Plans |
9 |
|
6.8
Results and Observation |
9 |
7.0 |
|
|
|
7.1 Weekly Site Inspection |
9 – 10 |
|
7.2 Review of Environmental Monitoring Procedures |
10 |
|
7.3 Status of Environmental Licensing and Permitting |
10 |
|
7.4 Implementation Status |
11 |
8.0 |
11 |
|
9.0 |
|
|
|
9.1 Summary of Waste disposed
of in this month |
11 |
|
9.2 Advice on the Solid and Liquid Waste
Management Status |
12 |
10.0 |
|
|
|
10.1 Summary of air quality, noise and marine water quality |
12 |
|
10.2 Summary of Environmental Complaints |
12 |
|
10.3 Summary of Notification of Summons and Prosecution |
12 |
11.0 |
12 – 13 |
|
12.0 |
14 |
|
|
|
|
APPENDIX |
|
Organization Chart and Lines of Communication |
|
Calibration Certificates for Impact Air Quality Monitoring Equipments |
|
Impact Air Quality Monitoring Results |
|
Graphical Plots of Impact Air Quality Monitoring Data |
|
Calibration Certificates for Impact Marine Water Quality Monitoring Equipments |
|
Impact Marine Water Quality Monitoring Results |
|
Graphical Plots of Impact Marine Water Quality Monitoring Data |
|
Calibration Certificates for Impact Noise Monitoring Equipments |
|
Impact Noise
Monitoring Results |
|
Graphical Plots of Impact Noise Monitoring Data |
|
Weather Condition |
|
Event-Action Plans |
|
Construction Programme |
|
Weekly ET’s Site Inspection Record |
|
Implementation Schedule of Mitigation Measures |
|
Site General Layout Plan |
|
QA/QC Results of Laboratory Analysis |
|
Complaint Log |
|
|
Figure 1 |
Locations of Air
Quality Monitoring Stations – Tuen Mun Area 38
Fill Bank |
Figure 2 |
Locations of Water
Quality Monitoring Stations – Tuen Mun Area 38
Fill Bank |
Figure 3 |
Locations of Noise
Quality Monitoring Stations – Tuen Mun Area 38
Fill Bank |
Tables |
|
2.1 |
Contact Details of Key
Personnel |
4.1 |
Air Quality Monitoring
Equipment |
4.2 |
Monitoring parameters,
duration and frequency of air quality monitoring |
4.3 |
Action and Limit levels
for 24-hr TSP and 1-hr TSP |
5.1 |
Monitoring Parameters
and Frequency of the marine water |
5.2 |
Summary of testing
procedure |
5.3 |
Details of Water Quality
Monitoring Equipment (In-site measurement) |
5.4 |
Water Quality Action and
Limit Levels |
5.5 |
Time Schedule of Water
Quality Monitoring |
5.6 |
Summary of Marine Water Quality Exceedances in this reporting month |
6.1 |
Noise Monitoring Equipment |
6.2 |
Duration, Frequencies and Parameters of Noise Monitoring |
6.3 |
Action and Limit Levels for noise monitoring |
7.1 |
Key Findings of Weekly ET Site Inspections in this reporting month |
7.2 |
Summary of environmental
licensing and permit status |
7.3 |
Summary of Environmental
Complaints and Prosecutions |
9.1 |
Actual amounts of waste
generated in this reporting month |
|
|
This monthly Environmental Monitoring
and Audit (EM&A) report No.21 was prepared
by Environmental Team (ET)
of ETS-Testconsult Ltd (ETL)
for the “Contract No. CV/2013/06 Handling
of Surplus Public Fill (2014-2016)
–
Tuen
Mun (TM)
Area
This report documented the findings
of EM&A Works conducted during the operation phase of Fill Bank at TM Area from 21 to 31 Januaryin February 2014.
Site
Activities
As informed by the Contractor, the site activities in this
reporting period were as below:
·
Removal of stockpiled Public Fill to Tipping Hall unloading
point;
·
Operation of the TM Area
38 Fill Bank;
·
Collection and delivery of Public Fill by
barges from the tipping halls at the TM
Area 38 Fill Bank to the Tai Shan Reclamation site in Mainland; and
·
Construction of contractor's site office at area B3;
·
Upgrading of Surveillance
Systems;
·
Construction of
·
Installation of Project Sign Board..
Environmental
Monitoring Progress
The
summary of the monitoring activities in this monitoring month is listed below:
· 24-hour
TSP Monitoring: 25
Occasions at 2 designated locations
· 1-hour
TSP Monitoring: 612 Occasions
at 2 designated locations
· Noise, Daytime: 48 Occasions at 2 designated locations
· Marine
Water Quality Monitoring: 511 Occasions
at 4
designated locations
· Weekly-site
inspection: 24
Occasions
Air Monitoring
No
exceedance of Action and Limit levels
was
recorded for 1-hr and 24-hr
TSP monitoring
in the reporting month.
Noise Monitoring
No
exceedance of Action and Limit levels for noise
monitoring was recorded in the
reporting month.
Marine Water
Quality Monitoring
According to
the summary of marine
water monitoring results, no
exceedance of Action and Limit levels
was
recorded.
Weekly Site Inspection
In general, performance on environmental mitigation measures
implemented was found to be satisfactory in this reporting month. The major
findings observed during site inspections are presented in the Section 7.0.
Environmental
Complaints, Notification of summons and successful prosecutions
No complaint, notification of summon
and prosecution with respect to environmental issues was
received in this monitoring month.
Future
Key Issues
Based on the site
inspections and forecast of engineering works in the coming month, key issues
to be considered are as follows:
·
Dust
generation
from activities on site, such as vehicular movements along unpaved area and
rock crushing activities;
·
Noise
impact from operating equipment and machinery on site;
·
Wastewater
and surface runoff from the site discharged into nearby water body; and
·
Storage and usage of chemicals / fuel
and chemical waste / waste oil.
HKPFH Joint
Venture (HKPFH-JV) appointed
Environmental Team (ET) of ETS-Testconsult Limited (ETL) to undertake the
Environmental Monitoring and Audit (EM&A) for the “Contract No:
CV/2013/06 –Handling of Surplus Public Fill (2014-2016) – Tuen Mun (TM) Area
In accordance with the Condition 5 of
Part C of Environmental Permit (No.: EP-210/2005/B) (the EP), an
EM&A programme as set out in the Project Profile should be implemented.
The EM&A programme requires environmental monitoring for air
quality, water quality and environmental site inspections for air quality,
water quality, landscape and visual, and waste
management. The EM&A requirements for each parameter described in the
following sections include:
§
All monitoring parameters;
§
Monitoring schedules for the reporting month and forthcoming
months;
§
Action and Limit levels for all environmental parameters;
§
Event/Action Plans;
§
Environmental mitigation measures, as recommended in the Project
Profile; and
§
Environmental requirements in contract documents.
Baseline monitoring was completed in May
2003 by Stanger Asia Ltd. Action and
Limit Levels were established for air and water quality parameters based on the
baseline monitoring results.
This report documented the
findings of EM&A Works conducted during the operation phase of Fill Bank at
Tuen Mun Area from 21 to 31 Januaryin February
2014.
2.1
Construction Programme
Details of construction programme are shown in Appendix G.
2.2 Project Organization and Management
Structure
The organization chart and lines of communication with respect to
the on-site environmental management and monitoring program are shown in
Appendix A.
2.3 Contact Details of Key Personnel
The key personnel contact names and telephone numbers are shown in Table 2.1.
Table 2.1 Contact Details of Key Personnel
Organization |
Name of Key Staff |
Project Role |
Tel. No. |
Fax No. |
CEDD |
Mr. P C Mok Mr. K C Wong Mr. C T Chock Mr. Y F Kwong |
Engineer’s Representative |
2762 5514 |
2714
0113 |
IEC (ENVIRON) |
Mr Tony
Cheng |
IEC |
3465 2888 |
3465 2899 |
Contractor
(HKPFH-JV) |
Mr. K W Li |
Project Manager |
9750 6438 |
2744 6937 |
ET (ETL) |
Mr C. L. Lau |
ET
Leader |
2946
7791 |
2695
3944 |
3.0 Construction Progress in this reporting month
As informed by
the Contractor, the activities in the reporting month include:
·
Removal
of stockpiled Public Fill to Tipping Hall unloading point;
·
Operation
of the TM Area 38 Fill Bank;
·
Collection
and delivery of Public Fill by barges from the tipping halls at the TM Area
38 Fill Bank to the Tai Shan Reclamation site in Mainland;
·
Construction
of contractor's site office at area B3;
·
Upgrading
of Surveillance Systems;
·
Construction
of
·
Installation
of Project Sign Board.
·Removal of
stockpiled Public Fill to Tipping Hall unloading point;
·Operation of
the TM Area 38 Fill Bank;
·Collection and
delivery of Public Fill by barges from the tipping halls at the TM Area
38 Fill Bank to the Tai Shan Reclamation site in
Mainland; and
·Construction of
contractor's site office at area B3.
4.1 Monitoring
Requirement
1-hr and 24-hr
TSP levels were monitored in the reporting month. Table 4.3 shows the Action and Limit Levels for the environmental
monitoring works.
4.2 Monitoring Equipment
Both 1-hour and 24-hour TSP air quality monitoring was performed
using a GMWS2310
High Volume Air Sampler (HVS) located at each of the designated monitoring
station. Table 4.1 summarizes the equipment used in the air quality monitoring
programme. Copies of the calibration
certificates for the HVS and calibrator are attached in Appendix B1.
Table 4.1 Air Quality Monitoring Equipment
Equipment |
Model and Make |
HVS |
Greasby GMWS2310 |
Calibrator |
Tisch TE |
4.3 Monitoring Parameters, Frequency and Duration
Table 4.2
summarizes the monitoring parameters, monitoring duration and frequencies of
air quality monitoring.
Table 4.2 Monitoring
parameters, duration, frequency of air quality
monitoring
Parameter |
Duration |
Frequency |
24-hr TSP |
24 hr |
Once per six days |
1-hr TSP |
1 hr |
Three
times per six days |
4.4 Monitoring
Locations and Schedule
In accordance
with the Project Profile, two air-quality monitoring stations, namely TM-A1 and TM-A2, were selected for the
1-hr TSP and 24-hr TSP sampling.
Since the area for existing
air monitoring station
TM-A2 near Tipping Hall No.1 was handed over to EcoPark, air
monitoring station TM-A2 was cancelled and the air monitoring was
carried out at an alternative air monitoring station TM-RA2 (refer to Figure 1
attached) from 28 October 2008.
The locations
of monitoring stations are shown in Figure 1.
During the reporting month, 1-hr and 24-hr TSP monitoring were
carried out as the schedule. The details for 24-hr and 1-hr TSP monitoring
carried out in this reporting month are summarized in Appendix B2.
4.5 Monitoring Methodology
Both 1-hr and 24-hr air quality
monitoring (High Volume Sampler)
Instrumentation
High
volume sampler, as HVS, (Greasby GMWS2310) complete
with appropriate sampling inlets were employed for both 1-hour and 24-hour TSP
monitoring. The sampler is composed of a motor, a filter holder, a flow
controller and a sampling inlet and its performance specification complies with
that required by USEPA standard Title 40, Code of Federation Regulations
Chapter 1 (Part 50).
Installation
The installation of HVS refers to the requirement stated in Appendix D2 “General
Technical Requirements of Environmental Monitoring” in the Environmental
Monitoring and Audit Guidelines for Development Projects in
Operation/Analytical Procedures
Operating/analytical procedures for the
operation of HVS are as below:
·
Prior to the commencement of the dust
sampling, the flow rate of the high volume sampler was properly set (between
·
For TSP sampling, fiberglass filters
(GA-55) were used.
·
The power supply was checked to ensure
the sampler worked properly.
·
On sampling, the sampler was operated 5
minutes to establish thermal equilibrium before placing any filter media at
designated air monitoring station.
·
The filter holding frame was then
removed by loosening the four nuts and carefully a weighted and conditioned
filter was centered with the stamped number upwards, on a supporting screen.
·
The filter was aligned on the screen so
that the gasket formed an air-tight seal on the outer edges of the filter. Then the filter holder frame was tightened to
the filter holder with swing bolts. The applied pressure should be sufficient
to avoid air leakage at the edges.
·
The programmable timer will be set for
a sampling period of 1 hour / 24
hours. Information
was recorded on the record sheet, which included the starting time, the weather
condition and the filter number (the initial weight of the filter paper can be
found out by using the filter number.).
·
After sampling, the filter was
transferred from the filter holder of the HVS to a sealed plastic bag and sent
to the laboratory for weighting. The
elapsed time was also recoded.
·
Before weighting, all filters were
equilibrated in a desiccator for 24 hour with the
temperature of 25oC + 3oC and the relative
humidity (RH) <50% +5%.
Maintenance & Calibration
·
The HVS and their accessories should be
maintained in good working condition, such as replacing motor brushes routinely
and checking electrical wiring to ensure a continuous power supply.
·
HVS should be calibrated at bi-monthly
intervals.
Wind Data Monitoring
Wind
data included wind speed and
wind direction were directly extracted from Tuen Mun Station of Hong Kong Observatory during this
reporting month. The wind data are presented in Appendix E.
4.6 Action
and Limit Levels
Table 4.3 shows the Action and Limit levels for 24-hr TSP and 1-hr TSP
monitoring.
Table 4.3 Action
and Limit Levels for 24-hr TSP and 1-hr TSP
Monitoring Location |
24-hr TSP (mg/m3) |
1-hr TSP (mg/m3) |
||
Action Level |
Limit Level |
Action Level |
Limit Level |
|
TM-A1 |
192 |
260 |
344 |
500 |
TM-RA2 * |
192 |
260 |
344 |
500 |
Remark
(*): Since the
area for existing air monitoring station TM-A2 near Tipping Hall No.1 was handed over to EcoPark, air monitoring station TM-A2
was cancelled and the air monitoring was carried out at an alternative air
monitoring station TM-RA2 from 28 October 2008. Since dust monitoring stations TM-A2 and TM-RA2 are located close to the
major dust emission sources and no significant difference between them on the
prevailing meteorological conditions, the baseline data from TM-A2 can also be
valid in the case of TM-RA2.
4.7 Event-Action Plans
Please refer to Appendix F for details.
4.8 Results and Observations
Totally 52 occasions of
24-hr TSP monitoring and 126 occasions of
1-hr TSP monitoring were carried out in this reporting period. All monitoring
data of both 1-hr and 24-hr TSP monitoring is provided in Appendix B2.
Graphical presentation of 1-hr and 24-hr TSP monitoring results for the reporting
month is shown in Appendix B3. Wind data, including wind speed and wind
direction, are annexed in Appendix E.
No exceedance of Action and Limit level was recorded for 1-hr and 24-hr TSP monitoring in the reporting month.
Generally,
the Contractor implemented sufficient dust mitigation measures, including
operation of wheel washing facilities and road dampening by water bowsers on the main haul roads and unpaved areas.
5.0
MARINE WATER QUALITY MONITORING
5.1 Monitoring Requirements
In accordance
with the Project Profile, impact marine water quality monitoring was conducted
three days per week. Measurements were taken at both mid-flood and mid-ebb
tides at three depths (i.e.
5.2 Monitoring Locations
As stipulated
in the EM&A requirement, there were four monitoring stations undertaken
during the impact monitoring. Figure 2 shows the
locations of the marine water quality monitoring stations.
5.3 Monitoring
Parameters and Frequency
Monitoring of the marine water quality parameters and frequency
are listed in Table 5.1.
Table 5.1 Monitoring
Parameters and Frequency of the marine water
Monitoring
Station |
Parameter |
Frequency |
No. of
Depths |
Control
Stations: TM-FC1 (Mid-ebb) and TM-FC2 (Mid-flood) Impact
Stations: TM-FM1 and TM-FM2 |
Depth (m) |
3
days/week, 2
tides/day |
3 (Surface,
mid-depth & bottom) |
Temperature (°C) |
|||
Dissolved
Oxygen (mg/L and % saturation) |
|||
Turbidity
(NTU) |
|||
Salinity (ppt) |
|||
Suspended
solids (mg/L) |
5.4
Monitoring Methodology and Equipment Used
For Location of
the monitoring stations
Global Positing
System (GPS)
A hand-held digital GPS was used to identify the designated monitoring stations prior to water sampling.
For Water Depth
measurement
Echo Sounder
A portable, battery-operated echo sounder was used for the determination of water depth at each designated monitoring station.
For In-situ Water Quality Measurement
All in-situ monitoring instruments were checked, calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme before use, and subsequently re-calibrated at 3 monthly intervals or sometimes longer throughout all stages of the water quality monitoring.
Dissolved
Oxygen, Salinity and Temperature Measuring Equipment
A portable, weatherproof
dissolved oxygen & salinity measuring
instrument, which complete with cable,
sensor and DC power source (e.g. YSI 85 or equivalent) was used for measuring:
· a dissolved
oxygen level in the range of 0-20 mg/L and 0-200 % saturation;
· a salinity in range 0-40 ppt; and
· a temperature
of 0-45 degree Celsius
A
membrane electrode with automatic temperature compensation complete with a
cable was installed.
Turbidity Measurement Instrument
A portable and weatherproof turbidity meter (HACH model 2100Q) was used during impact monitoring. It has a photoelectric sensor capable of measuring turbidity between 0-1000 NTU. Response of the sensor was checked with certified standard Turbidity solutions before the start of measurement.
For Water Sampling and Sample Analysis
In-situ monitoring was carried out at three depths: 1 meter below water surface, at mid-depth and 1 meter above the seabed. At each sampling depth, duplicate readings of dissolved oxygen content and turbidity were taken. The probes were retrieved out of the water after first measurement and then redeployed for the second measurement. The difference between the two readings of each set was more than 25% of the value of the first reading while a third measurement would be conducted to ensure data precision.
Water Sampler
A water sampler comprising a transparent PVC cylinder, with a capacity of not less than 2 liters, was lowered into the water body at the predetermined depth. The both opening ends of the sampler were then closed accordingly by dead weight and water samples were collected.
Water Container
The sample container, made by high-density polythene, was rinsed
with a portion of the water sample. The water sample was then transferred to
the container, labeled with a unique sample ID and sealed with a screw cap. The
water samples were stored in a cool box maintained at 4oC. The water
samples were then delivered to a local HOKLAS-accredited laboratory
(Environmental Laboratory, ETS-Testconsult Ltd, HOKLAS Registration No. 022) on
the same day for analysis.
The summary of testing method of testing parameter as recommended by EIA or required by EPD, with the QA/QC results in accordance with the requirement of HOKLAS or international accredited scheme is shown in Table 5.2. For the QA/QC procedures, one QC sample, one duplicate sample and one sample spike of every batch of 20 samples were analysis. The QA/QC results are summarized in Appendix K.
Table 5.2 Summary of testing procedure
Laboratory Analysis |
Testing Procedure |
Detection Limit |
Total suspended solids |
In house method
based on APHA 19th ed 2540D |
1.0 mg/L |
In-situ
measurement
All in-situ monitoring instruments were checked, calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme before use. Responses of sensors and electrodes were checked with certified standard solutions before each use. Wet bulb calibration for a DO meter was carried out before the start of measurement.
At each measurement/sampling depth, two consecutive measurements
of dissolved oxygen (DO), dissolved oxygen saturation (DOS), turbidity and
salinity were taken. For turbidity measurement, the sample was collected by
using sampler and then transferred to the cell. The reading of turbidity of the
sample was directly recorded from the Turbidimeter
(HACH 2100Q) after inserting the cell
to the Turbidimeter. For DO, DOS and Salinity,
measurements were conducted three days per week at both mid-ebb and mid-flood
tides at three depths (i.e.
Table 5.3 shows the equipment used for in-situ monitoring of water quality. The calibration certificates are attached in Appendix C1.
Table 5.3 Details of Marine Water Quality
Monitoring Equipment (In-site measurement)
Parameter |
Model |
Date of Calibration |
Due Date |
Equipment No. |
Coordinate
of Monitoring stations |
Garmin eTrex 10 |
----- |
----- |
ET/EW/005/04 |
Dissolved
Oxygen (Saturation), Temperature, Salinity |
YSI
Dissolved Oxygen,
Salinity & Temperature Meter, YSI Pro 2030 |
|
|
ET/EW/008/004 * |
Turbidity |
HACH
Model 2100Q Turbid Meter |
|
|
ET/0505/010 * |
Water
Depth |
Speedtech SM-5 |
----- |
----- |
ET/EW/002/06 |
Remark:(*)
indicates the instrument should be calibrated on use.
5.5 Action
and Limit Levels
The
water quality criteria, namely Action and Limit (A/L) levels are presented in the table below.
Table 5.4 Water Quality Action and Limit Levels
Parameter |
Action
Level |
Limit
Level |
DO (mg/L) |
Surface & Middle <4.78 mg/L (5%-ile of baseline data) Bottom <4.16 mg/L (5%-ile of baseline data) |
Surface & Middle <4.00 mg/L (1%-ile of baseline data) Bottom <2.00 mg/L |
SS (mg/L) (Depth-averaged) |
>120% of the upstream control station’s SS at the same tide
on the same day |
>130% of the upstream control station’s SS at the same tide
on the same day |
Turbidity (NTU) (Depth-averaged) |
>120% of the upstream control station’s turbidity at the same
tide on the same day |
>130% of the upstream control station’s turbidity at the same
tide on the same day |
5.6
Event
and Action Plan
Please
refer to the Appendix F
for details.
5.7
Monitoring
Duration and Period in this reporting month
Totally 5 occasions of
marine water quality monitoring were carried out in this reporting period. Below is
the time schedule for the marine water
quality monitoring events that were conducted in this reporting period:
Table
5.5 Time Schedule of Marine Water Quality Monitoring
February 2014 |
||||||||||||||
|
Sunday |
Monday |
Tuesday |
Wednesday |
Thursday |
Friday |
Saturday |
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1 |
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2 |
3 |
4 ▼ |
5 |
6 ▼ |
7 |
8 ▼ |
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9 |
10 |
11 ▼ |
12 |
13 ▼ |
14 |
15 ▼ |
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16 |
17 |
18 ▼ |
19 |
20 ▼ |
21 |
22 ▼ |
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23 |
24 |
25 ▼ |
26 |
27 ▼ |
28 |
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Remark (▼) : Marine
water quality monitoring carried out by ET
The duration of
marine water quality monitoring is detailed in Appendix C2.
5.8
Marine Water Quality Monitoring Results
The impact water quality measurement results are detailed in
Appendix C2. Appendix C3 presents the water quality monitoring data and
graphical presentations of monitoring results respectively.
The
summary of marine water quality exceedances is shown
in Table 5.6.
Table
5.6 Summary of Marine Water
Quality Exceedances in this reporting month
Tide |
Station |
Exceedance
Level |
DO |
Turbidity |
SS |
Total |
|
Surface & Middle |
Bottom |
||||||
Mid-Ebb |
TM-FM1 |
Action |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
||
TM-FM2 |
Action |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
||
Mid-Flood |
TM-FM1 |
Action |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
||
TM-FM2 |
Action |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
||
Total |
Action |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
According
to the summary of marine water monitoring results, no exceedances of Action and Limit levels were recorded for this reporting month.
6.0 Noise Monitoring
6.1 Monitoring Requirements
Noise monitoring was conducted at 2 designated monitoring
stations as specified in the Sections 26.10
to 26.12 of the Particular Specification for good site
practice.
The equipment, parameter, frequency, duration, methodology,
calibration details, results and observations of the noise monitoring for the
reporting month are presented in this section.
6.2 Monitoring Equipment
An
Integrating Sound Level Meter was used for noise monitoring. It was a Type 1
sound level meter capable of giving a continuous readout of the noise level
reading including equivalent continuous sound pressure level (Leq) and percentile sound pressure level (Lx).
It complies with International Electro Technical Commission Publications
651:1979 (Type1) and 804:1985 (Type1), and speed in m/s was used to monitor the
wind speed.
Table
6.1 summarizes
noise monitoring equipment model being used. A copy of the calibration
certificate for noise meter and calibrator are attached in Appendix D1.
Table 6.1 Noise Monitoring Equipment
Equipment |
Model |
Sound Level Meter |
Rion NL-31 / Rion NL-52 |
Calibrator |
Rion NC-73 /
Castle GA607 |
6.3 Monitoring Parameters, Duration and Frequency
Duration, frequencies and parameters of
noise measurement are presented in Table 6.2.
Table 6.2 Duration,
Frequencies and Parameters of Noise Monitoring
Time period |
Duration/min |
Parameters |
Frequency |
Day-time: 0700-1900 hrs on normal weekday |
30 |
Leq, L10, L90 |
Twice
per week |
6.4 Monitoring Locations and Period
Since Lands Dept did not approve to carry
out noise monitoring at their
own area
where the
noise monitoring stations TM-N1 and TM-N2 located due to the security, noise monitoring
carried out at two
noise monitoring stations TM-RN1
and TM-RN2
(refer to the figure 3
attached) from 18
December 2007.
The noise monitoring
locations,
TM-RN1 and
TM-RN2 are
shown in Figure 3.
The noise measurement at TM-RN1 and TM-RN2 are façade measurement.
The noise-monitoring period of
monitoring stations
is summarized in Appendix D2.
6.5 Monitoring Procedures and Calibration
Details
Operation/Analysis Procedures
·
The Sound Level Meter was set on a
tripod at a height of
·
For free field measurement, the meter
was positioned away from any nearby reflective surfaces.
·
The battery condition was checked to
ensure the correct functioning of the meter.
·
Parameters such as frequency weighting,
the time weighting and the measurement time were set as follows:
-
Frequency weighting: A
-
Time weighting :
Fast
-
Time measurement : 30 min
·
Prior to and after each noise
measurement, the meter was calibrated using a Calibrator for 94 dB at
1000HZ. If the difference in the
calibration level before and after measurement was more than 1dB(A),
the measurement would be considered invalid and repeat measurement would be
required after re-calibration or repair of the equipment.
·
The wind speed was frequently checked
with a portable wind meter.
·
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.
·
Free Field correction to the measurements should be
made. Correction factor of +3dB(A) should be made to
the free Field measurements. Noise
monitoring would be cancelled in the presence of fog, rain, wind
with a steady speed exceeding
Maintenance
and Calibration
·
The microphone head of the sound level
meter and calibrator are cleaned with soft cloth in quarterly intervals.
·
The meter is sent to the supplier or
HOKLAS laboratory to check and calibrated in yearly intervals.
6.6 Action
and Limit Levels
The Action and Limit levels for noise levels derived as illustrated in
Table 6.3.
Table 6.3 Action and Limit Levels for noise
monitoring
Time Period |
Action * |
Limit * |
0700-1900 hrs on normal
weekdays |
When one documented complaint
is received |
65 dB(A) |
6.7 Event-Action Plans
Please refer to the
Appendix F
for details.
6.8
Results and
Observation
Totally 84 occasions of noise
monitoring were carried out in
this reporting month. The detail of the noise monitoring is provided in Appendix D2. Graphical presentation of the monitoring result for the reporting
month is shown in Appendix D3.
Since no documented complaint on noise issue was received in this reporting month, no Action Level exceedance
was recorded. Besides, no exceedance in Limit Level was recorded according to the result from Day-time noise monitoring.
The major sources
of noise pollution observed in this reporting month were noise from
the traveling
dump trucks and from the operation of site
machines.
7.1 Weekly ET Site Inspection
Weekly site inspections were carried out by ET
to monitor the timely implementation of proper environmental pollution control
and mitigation measures for the Project. In this reporting month, two
four weekly site inspections were conducted on 06,
13, 20 and 24 February 23 and 29 January 2014. Summaries of key findings of weekly ET site
inspections in this month are described
in Table 7.1.
Table 7.1 Key Findings of Weekly ET Site Inspections in this reporting month
Date |
Key Findings |
Action(s) Taken recommended by ET |
Action(s) Taken by the Contractor during the site audit |
Rectification Status by ET |
|
C&D
waste, such paper and idle buckets, were found discarded at water truck
filling station. (Previous item) |
To collect and dispose of the
water properly. |
C&D waste,
such paper and idle buckets, discarded at water truck filling station were
cleared. |
Closed |
Oil stain was
noted from a generator at dry soil deposition area. (New item) |
To clear the
oil stain and treat the contaminated material as chemical waste. |
--- |
Follow-up |
|
Skirt curtain
for a generator at dry soil deposition area was dirty. (New item) |
To replace
the dirt skirt curtain by clean one. |
--- |
Follow-up |
|
|
Oil stain was
noted from a generator at dry soil deposition area. (Previous item) |
To clear the
oil stain and treat the contaminated material as chemical waste. |
--- |
Follow-up |
Date |
Key Findings |
Action(s) Taken recommended by ET |
Action(s) Taken by the
Contractor during the site audit |
Rectification
Status by ET |
13 February 2014 |
Skirt curtain
for a generator at dry soil deposition
area was dirty. (Previous item) |
To replace the dirt skirt
curtain by clean one. |
--- |
Follow-up |
|
Oil stain was
noted from a generator at dry soil deposition area. (Previous
item) |
To clear the oil stain and
treat the contaminated material as chemical waste. |
Oil stain
noted from a generator at dry soil deposition area was cleaned up. |
Closed |
Skirt curtain
for a generator at dry soil deposition area was dirty. (Previous
item) |
To replace the dirt skirt
curtain by clean one. |
Clean skirt
curtain for a generator at dry soil deposition area was used. |
Closed |
|
The enclosure
of tipping hall No.2 was damaged. (New item) |
To repair the
damaged part of tipping hall properly. |
--- |
Follow-up |
|
24 February 2014 |
The enclosure
of tipping hall No.2 was damaged. (Previous item) |
To repair the
damaged part of tipping hall properly. |
The damaged
enclosure of tipping hall No.2 was repaired. |
Closed |
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7.2
Review of Environmental Monitoring Procedures
The monitoring works conducted by the ET were inspected internally
on a regular basis. The following observations have been recorded for the
monitoring works:
Air Quality Monitoring
§ The monitoring
team recorded the observations around the monitoring stations within and
outside of the construction site.
§ The monitoring
team recorded the temperature, air pressure and general weather condition on
the monitoring day.
Water Quality Monitoring
§ The monitoring
team recorded
the observations around the monitoring stations, which might affect the
results; and
§ Major water pollution
sources were identified and recorded.
Noise Monitoring
§ The monitoring
team recorded the observations around the monitoring station, which might
affect the results.
§ Major noise
sources were identified and recorded.
7.3
Status of Environmental Licensing and Permitting
All permits/licenses valid in this reporting month are summarized
in Table 7.2.
Table 7.2 Summary of environmental licensing and permit status
Description |
Permit No. |
Valid Period |
Section |
|
From |
To |
|||
Environmental
Permit |
EP-210/2005/B |
|
--- |
Issued |
Marine Dumping Permit |
EP/MD/14-119 |
|
|
Approval for dumping 2,800,000 tons (approximately equal to 1,555,555 cu.m. bulked quantity) of Public Fill (Reclamation
Materials) from Tseung Kwan O Area 137 Fill Bank
and Tuen Mun Area 38 Fill Bank to designated
dumping area at Guanghaiwan of Taishan |
Description |
Permit No. |
Valid Period |
Section |
|
From |
To |
|||
Chemical
Waste Producer |
5296-421-H3555-01 |
|
--- |
Spent battery containing heavy metals and spent lubricating oil |
Billing Account for Waste Disposal |
7018998 |
--- |
--- |
--- |
Effluent
Discharge License |
Application in progress |
7.4
Implementation Status
An updated summary of the Environmental
Mitigation Implementation Schedule (EMIS) is presented in Appendix I. Most of the necessary mitigation measures were implemented
properly.
7.4.2
Implementation Status of Event and Action Plan
No exceedance of Action and Limit levels was recorded for 1-hr and 24-hr TSP monitoring
in the reporting month.
Apart
from this, there was no exceedance
on noise and marine water monitoring parameters
recorded in this monitoring month. Hence no further actions were required.
No complaint, notification of summon and
prosecution with respect to environmental issues was received in this monitoring month.
A summary of environmental complaints, notifications of summons
and successful prosecutions was given in Table 7.3.
Table 7.3 Summary of Environmental Complaints and Prosecutions
Complaints logged |
Summons served |
Successful Prosecution |
|||
|
Cumulative |
February 2014 |
Cumulative |
February 2014 |
Cumulative |
0 |
0 |
0 |
0 |
0 |
0 |
Landscape and visual site audit was carried out on a weekly basis
to monitor environmental issues in order to ensure that all mitigation measures
were implemented timely and properly. The findings in this reporting month were:
§
The maximum stockpiling height at the Fill Bank was limited to a
maximum of +40 mPD;
§
The Contractor hydroseeded the outer
slopes of the Fill Bank as far as practicable;
§ The Contractor
removed the stockpile of public fill in a sequence to allow the outer hydroseeded to be removed later than other portions as far
as practicable; and
§ Lighting was set to minimize night-time glare.
9.0 Waste
Management
9.1
Summary of Waste disposed of in this month
The actual amounts of different types of waste disposed of by the activities of the
Project in the month are shown in Table 9.1
Table 9.1 Actual amounts of
Waste generated in this
reporting month
Waste Type |
Actual Amount |
Disposal Locations |
Public Fill (m3) |
11 |
|
C&D Waste (general refuse) (kg) |
|
WENT
Landfill |
Chemical Waste (kg/L) |
0 |
|
9.2
Advice on the Solid and Liquid Waste Management Status
The Contractor should provide sufficient preventive measures
during equipment maintenance works so as to avoid oil leakage on the ground. In
the event of any oil leakage, the Contractor should clean up the polluted soil
and handle all the materials used for this cleaning works as chemical waste.
The drain outlet of all the bunded areas should be plugged
properly. Besides, pre-cast drip trays were provided for oil drums at several
areas, such as workshop and chemical storage area. The Contractor should
collect and dispose of any stagnant water accumulated in the concrete bunding and drip trays and handle them as chemical waste.
The Contractor should use suitable containers with proper labels
to store chemical wastes in accordance with Code of Practice on the Packaging,
Labeling and Storage of Chemical Waste.
The Contractor should also advise their workers of the proper procedures
in handling the chemical waste. All the trip tickets for chemical waste
disposal should be properly kept in the site
office.
The Contractor was reminded to increase the frequency of
inspection and cleaning of the site drainage system, including permanent
desilting chambers, desilting facilities, oil interceptor bypass tank and all the trapezoidal channels. Moreover, the Contractor should
apply approved pesticides in the stagnant water ponds.
All the runoff from the parking area should be pumped to the
desilting facilities and oil interceptors to remove suspended solids and oil
& grease prior to discharge.
10.0 Environmental Non-conformance
10.1 Summary of air
quality, noise and marine water quality
No exceedance of Action and Limit levels was recorded for 1-hr and 24-hr TSP monitoring in the reporting month.
According
to the summary of marine water monitoring results, no exceedance of Action and Limit levels was recorded for this reporting month.
The noise level
measured at the monitoring station complied with the Limit Level of 65dB(A). No complaint was received regarding noise
issue in this reporting month.
10.2 Summary of
Environmental Complaints
No
complaint was occurred in this reporting month.
10.3 Summary of
Notification of Summons and Prosecution
There was no notification of summon and prosecution respect to
environmental issues registered in this reporting month.
11.0 Conclusions
and recommendations
Conclusions
Impact
monitoring of air quality, noise and water quality were carried out at designated locations in this
reporting month.
According to the
summary of air monitoring results, no exceedance of Action and Limit levels was recorded for 1-hr and 24-hr TSP monitoring in the reporting month.
According
to the summary of marine water monitoring results, no exceedance of Action and Limit levels was recorded in this reporting month.
The noise level
measured at the monitoring station complied with the Limit Level of 65dB(A). No complaint was received regarding noise
issue in this reporting month.
According to the weekly site inspections carried out in this
reporting month, the Contractor generally implemented sufficient dust
mitigation measures, including operation of the mist spraying systems and
automatic wheel washing facilities, dampening of haul roads and stockpiling
areas.
No complaint, prosecution or
notification of summons was received in this
reporting month.
Recommendations
According
to the environmental site inspections performed in the reporting month, the
following recommendations were provided:
Air
Quality
§ Ensure the frequency of
water spraying on haul roads, unloading areas and stockpiles to be sufficient
to suppress the dust sources;
§ Provide proper maintenance
for the powered mechanical equipment and barges to avoid emission of dark
smoke;
§ Provide water spraying onto
the truckloads during inspection of fill material;
§ Conduct road sweeping on
all paved haul roads and
public roads especially outside and near the site
egress by the road sweeper. Undertake water spraying on stockpiling area by
water bowers;
§ Erect adequate speed limit
signs to advise the truck drivers of the speed limit;
§ Operate mist spraying
systems and automatic water sprinklers in the Fill Bank;
§ Implement the dust
mitigation measures for the construction activities;
§ Designate proper haul roads
to ensure effective water spraying; and
§ Ensure all vehicles to be
washed before leaving the site egress by provision, operation and maintenance
of automatic wheel washing facilities.
Noise
§ Conduct noisy activities at
a farther location from the NSRs.
Water Quality
§ Maintain the drainage
system, including the trapezoidal channels and permanent desilting chambers
regularly; and
§ Remove the stagnant water
or provide approved pesticides for the stagnant water in the permanent
desilting chambers, if any.
Chemical and Waste
Management
§ Remove waste materials from
the site to avoid accumulation regularly;
§ Handle and store chemical
wastes properly;
§ Remove unwanted material in
the existing stockpiles and avoid further dumping of such material;
§ Provide and maintain
sufficient drip trays for diesel drums, chemical containers, chemical waste
storage drums and diesel operated generator set;
§ Maintain good housekeeping
at the workshop area;
§ Ensure sufficient tarpaulin
sheets are provided to cover drip trays; and
§ Avoid soil being polluted
during oil filling and equipment maintenance; hence, properly remove and store
the contaminated soil, if any.
Landscape and Visual
§ Provide hydroseeding
on the exposed slopes, on which the final profile has been formed;
§ Erect all the site
hoarding/chaining fences in accordance with agreed design at proper location;
and
§ Maintain the hydroseeded slopes properly.
12.0 Future Key Issues
Based
on the site inspections and forecast of engineering works in the coming month,
key issues to be considered are as follows:
§ Dust generation
from activities on site, such as vehicular movements along unpaved area and
rock crushing activities;
§ Noise impact
from operating equipment and machinery on site and
§ Wastewater and surface
runoff from the site discharged into nearby water body.
- END OF REPORT -
Storage
and usage of chemicals / fuel and chemical waste / waste oil. |
Appendix A
Project Organization Chart
Appendix B1
Calibration Certificates for
Impact Air Quality Monitoring Equipments
Appendix B2
Impact Air Quality Monitoring Results
Summary of 24-hr TSP Monitoring Results
Monitoring
Station : TM-A1
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Monitoring
Station : TM-RA2
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Summary
of 1-hr TSP Monitoring Results
Monitoring Station : TM-A1
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Monitoring Station :
TM-RA2
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Appendix B3
Graphical Plots of Impact Air Quality Monitoring Data
Appendix C1
Calibration Certificates for
Impact Marine Water Quality Monitoring Equipments
Appendix C2
Impact Marine Water Quality Monitoring Results
Appendix C3
Graphical Plots of Impact Marine Water Quality
Monitoring Data
Appendix D1
Calibration Certificates for
Impact Noise Monitoring Equipments
Appendix D2
Impact Noise Monitoring Results
Day-time Noise Monitoring`
Monitoring
Location: TM-RN1
*
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Remark: Since
Lands Department did not approve us to enter their own area where the noise
monitoring stations TM-N1
and TM-N2 located due to the security,
noise monitoring
was carried out at noise monitoring
stations TM-RN1
and TM-RN2
(refer to the figure
3
attached) in
this reporting month.
Monitoring
Location: TM-RN2
*
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Remark: Since Lands Department did not approve us to enter their own area where the noise
monitoring stations TM-N1
and TM-N2 located due to the security,
noise monitoring
was carried out at two noise monitoring
stations TM-RN1
and TM-RN2
(refer to the figure 3
attached)
in this reporting
month.
.
Appendix D3
Graphical Plots of Impact Noise Monitoring Data
Appendix E
Weather Condition
Appendix F
Event-Action Plans
Appendix G
Construction Programme
Appendix H
Weekly ET’s Site Inspection Record
Appendix I
Implementation Schedule of Mitigation Measures
Environmental
Mitigation Implementation Schedule
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Appendix J
Site General Layout plan
Appendix K
QA/QC Results of Laboratory Analysis
QA/QC Results of Laboratory Analysis of Total
Suspended Solids
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Note: (*) %
Recovery of QC sample should be between 80% to 120%.
(#) %
Error of Sample Duplicate should be between –10% to 10%.
(@) %
Recovery of Sample Spike should be between 80% to 120%.
Appendix L
Complaint Log
Complaint Log
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Figures