Table of Content
1.4 Summary of
Construction Works
1.5 Summary of EM&A
Programme Requirements
2.......... AIR QUALITY MONITORING
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.......... ENVIRONMENTAL SITE INSPECTION AND AUDIT
4.2 Advice on the Solid
and Liquid Waste Management Status
4.3 Environmental
Licenses and Permits
4.4 Implementation
Status of Environmental Mitigation Measures
4.5 Summary of
Exceedances of the Environmental Quality Performance Limit
4.6 Summary of Complaints,
Notification of Summons and Successful Prosecutions
5.1 Construction
Programme for the Coming Two Months
5.2 Key Issues for the
Coming Two Months
5.3 Monitoring Schedule
for the Coming Month
6.......... 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 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 Impact Noise Monitoring
Results in the Reporting Period
Table 4.1 Summary of Environmental Licensing
and Permit Status
List of Figures
Figure
1.1 General Layout Plan
Figure 2.1 Monitoring
Locations
List of
Appendices
Appendix A Project Organization Structure
Appendix B Implementation Schedule of Environmental Mitigation Measures
Appendix
C Summary of Action and Limit Levels
Appendix D Calibration Certificates of Equipments
Appendix E EM&A Monitoring Schedules
Appendix F Air Quality Monitoring Results and their
Graphical Presentations
Appendix G Noise Monitoring Results and their Graphical
Presentations
Appendix H Meteorological Data
for February 2014
The Project “Development at
(hereafter called “the Project”) is proposed to form
platforms for housing development and associated
uses in area of about 20 hectares, and to carry out
necessary infrastructural upgrading or improvement
works to cater for the proposed development.
China State Construction Engineering (
The impact EM&A for the Project includes air
quality and noise monitoring. The EM&A programme for Sau Ming Primary
School (ID 4) and Sau Mau Ping Catholic Primary School (ID 5) commenced on 1
May 2008, while for Kwun Tong Government Secondary School (ID
The monitoring stations ID 4 & ID 5 will serve
both the entire Development of Anderson Road
(Schedule 3 Designated Project (DP)) project as well
as the Widening of Po Lam Road (Schedule 2 DP) project.
The
construction for the
Widening of Po Lam Road (Schedule 2 DP) project was
commenced on 21 September 2011.
This
report documents the findings of
EM&A works for ID
l Site
clearance
l Establishment
of temporary access road and temporary drainage
l Slope
stabilization and upgrading works
l Temporary
traffic arrangement and road work at New Clear Water Bay Road, Sau Mau Ping
Road, Sau Fung Street , J2 and J/O Po Lam Road
l Toe / Berm
planter and platform drainage construction
l Retaining
wall structural works
l Trench
excavation and pipe laying
l RE wall
panel installation and backfilling
l Pipe pile
construction of Footbridge C
l Structural
works at Footbridges A, B and C
l Pipe
Jacking at Sau Mau Ping Road
l Earth work
and C&D stock pile
l Breaking of
rock trench at public road
l Drainage
construction at public road
l Construction
of the twin 1800mm dia. pipes
l Construction
of the coping structure at R15b
l Installation
of precast panel to Bridge A
l Installation
of noise barriers
l Waterworks
l Mini-pile
construction of Footbridge A tower B
Breaches of Action
and Limit Levels for Air Quality
No exceedance of Action and Limit Level was recorded for both 1-hour TSP
and 24-hour TSP monitoring at all monitoring locations in the reporting month.
Breaches of Action
and Limit Levels for Noise
According to the information provided by the
Contractor, no Action Level exceedance was recorded since no noise related
complaint was received in the reporting month.
No exceedance
of Limit Level of noise was recorded in the reporting month.
Complaint,
Notification of Summons and Successful Prosecution
As informed by the
Contractor on 6 March 2014, two summonses were received regarding the suspected
violation case of Water Pollution Control Ordinance (Cap. 358) within site
working area of the project on 4 May 2013.
According to the information provided by the
Contractor, no environmental complaint and no
notification of summons and successful prosecution were received in the reporting month.
Reporting Changes
There was
no reporting change in the reporting month.
Future Key Issues
- 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 areas with
proper drainage system to handle run-off from maintenance works;
- Collection and segregation of construction waste and general refuse
should be carried out properly and regularly;
- Site runoff should be properly collected and treated prior to discharge;
- Regular review and maintenance of drainage systems and desilting
facilities;
- Exposed slopes/soil stockpiles should be properly treated to avoid
generation of silty surface run-off during rainstorm;
- Proper mitigation measures should be provided to avoid relocation of
treated contaminated soil;
- Regular review and maintenance of wheel washing facilities provided at
all site entrances/exits;
- Suppress dust generated from work processes with use of bagged cements,
earth movements, drilling works, breaking works, excavation activities, exposed
areas/slopes/soil stockpiles and haul road traffic;
- Conduct regular inspection of the working machineries within works area
to avoid any dark smoke emission and oil leakage;
- Quieter powered mechanical equipment should be used;
- Provision of proper and effective noise control measures, such as
erection of movable noise barriers during blasting, breaking and drilling works
and at crushing plant works area and provision of acoustic material wrapping to
breaking tips of breakers; 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 |
ER (Ove Arup) |
Chief Resident Engineer |
Dennis Leung |
3656 3000 |
3656 3100 |
Senior Resident
Engineer |
Michael Wright |
3656 3000 |
3656 3100 |
|
Resident Engineer (Safety and Environmental) |
Kenneth Lee |
3656 3000 |
3656 3100 |
|
IEC (ENVIRON) |
Independent Environmental Checker |
David Yeung |
3465 2888 |
3465 2899 |
Contractor (CSCE) |
Site Agent |
C S Yeung |
2704 2095 |
2702 6553 |
Environmental Manager |
Leo Chung |
2704 2095 |
2702 6553 |
|
ET (AECOM) |
ET Leader |
Yiu Wah Fung |
3922 9366 |
2317 7609 |
l Site
clearance
l Establishment
of temporary access road and temporary drainage
l Slope
stabilization and upgrading works
l Temporary
traffic arrangement and road work at New Clear Water Bay Road, Sau Mau Ping Road,
Sau Fung Street , J2 and J/O Po Lam Road
l Toe / Berm
planter and platform drainage construction
l Retaining
wall structural works
l Trench
excavation and pipe laying
l RE wall
panel installation and backfilling
l Pipe pile
construction of Footbridge C
l Structural
works at Footbridges A, B and C
l Pipe
Jacking at Sau Mau Ping Road
l Earth work
and C&D stock pile
l Breaking of
rock trench at public road
l Drainage
construction at public road
l Construction
of the twin 1800mm dia. pipes
l Construction
of the coping structure at R15b
l Installation
of precast panel to Bridge A
l Installation
of noise barriers
l Waterworks
l Mini-pile
construction of Footbridge A tower B
- All monitoring parameters;
- Monitoring schedules for the reporting month and
forthcoming months;
- Action and Limit levels for all environmental
parameters;
- Event / Action Plan;
- Environmental mitigation measures, as
recommended in the Project EIA study final report; and
- Environmental requirement in contract documents.
Table 2.1 Air Quality Monitoring Equipment
Table 2.2 Locations of Air Quality Monitoring
Stations
|
|
Roof top of the premises facing |
2 |
On Yat House |
Roof top of the
premises facing Lee On Road |
3 |
Sau Nga House |
Roof top of the premises facing |
4 |
|
Roof top of the premises |
5 |
|
Roof top of the premises |
Table 2.3 Air Quality Monitoring Parameters,
Frequency and Duration
ID |
1-hour TSP |
At least 3 times every 6 days |
24-hour TSP |
At least 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)
The distance between the HVS and any obstacles,
such as buildings, was at least twice the height that the obstacle protrudes
above the HVS.
(iii)
A minimum of 2 meters separation from walls,
parapets and penthouse for rooftop sampler.
(iv)
A minimum of 2 meters separation from any
supporting structure, measured horizontally is required.
(v)
No furnace or incinerator flues nearby.
(vi)
Airflow around the sampler was unrestricted.
(vii)
Permission was obtained to set up the samplers and
access to the monitoring stations.
(viii)
A secured supply of electricity was obtained to
operate the samplers.
(ix)
The sampler was located more than 20 meters from
any dripline.
(x)
Any wire fence and gate, required to protect the
sampler, did not obstruct the monitoring process.
(xi)
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
(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 aluminium 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
(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)
HVSs were calibrated using TE
(iii)
Calibration certificate of the TE
(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 D.
|
Average (mg/m3) |
Range (mg/m3) |
Action Level
(mg/m3) |
Limit Level (mg/m3) |
ID |
78.5 |
67.4 – 83.6 |
201.5 |
500 |
ID 2 |
80.3 |
69.7 – 84.2 |
197.0 |
500 |
ID 3 |
80.6 |
70.8 – 84.2 |
203.7 |
500 |
ID 4 |
79.1 |
71.9 – 83.7 |
264.6 |
500 |
ID 5 |
79.3 |
67.7 – 84.4 |
267.4 |
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) |
ID |
41.6 |
32.3 – 56.1 |
170.2 |
260 |
ID 2 |
53.9 |
33.3 – 99.7 |
200.0 |
260 |
ID 3 |
50.2 |
38.6 – 71.7 |
200.0 |
260 |
ID 4 |
42.5 |
36.6 – 49.9 |
181.3 |
260 |
ID 5 |
54.0 |
44.0 – 62.6 |
180.8 |
260 |
Table 3.1 Noise Monitoring Equipment
|
|
Acoustic Calibrator |
Rion (Model No. NC-73) |
Table 3.2 Locations of Impact Noise Monitoring
Stations
|
|
|
2 |
On Yat House |
|
3 |
Sau Nga House |
|
4 |
|
|
5 |
|
|
Table 3.3 Noise
Monitoring Parameters, Frequency and Duration
Monitoring Station |
Parameter and Duration |
Frequency |
ID |
30-mins measurement at each monitoring
station between 0700 and 1900 on normal weekdays. 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 all monitoring
locations.
(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; Leq(5-minutes)
during restricted hours i.e. 19:00
– 23:00 and 23:00 – 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 D.
Table 3.4 Summary of Impact 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) |
ID |
61.2 |
56.0 – 63.6 |
*65/70 |
ID 2 |
62.6 |
58.5 – 65.2 |
75 |
ID 3 |
61.6 |
55.0 – 66.4 |
75 |
ID 4 |
63.6 |
58.8 – 65.3 |
*65/70 |
ID 5 |
59.7 |
48.4 – 64.2 |
*65/70 |
Note: *Daytime noise Limit Level
of 70dB(A) applies to education institutions while 65dB(A) applies
during school examination period.
Table 4.1 Summary of Environmental Licensing and
Permit Status
Description |
Permit No. |
Valid
Period |
Remarks |
||
From |
To |
||||
EIAO |
Environmental Permit |
EP-140/2002 |
-- |
-- |
- Widening of a section of
Po Lam Road - Improvement works to
existing roads |
APCO |
NA notification |
-- |
16/04/09 |
-- |
-
Whole Construction Site |
WPCO |
Discharge License |
WT0002558-2009 |
|
|
-
Discharge of Construction Runoff |
Discharge License |
EP670/I/C0613/293 |
02/02/12 |
28/02/17 |
- Discharge from Road L6 |
|
WDO |
Chemical Waste Producer Registration |
5213-292-C3249-32 |
|
-- |
-
Whole Construction Site |
Waste Charges Account |
7006839 |
12/03/08 |
-- |
-
Whole Construction Site |
|
Construction Noise Permit |
GW-RE0982-13 |
20/09/13 |
03/02/14 |
- Hiu
Kwong Street Works |
|
GW-RE0164-14 |
20/02/14 |
19/07/14 |
- Hiu
Kwong Street Works |
||
GW-RE0189-14 |
20/02/14 |
19/07/14 |
-
Whole Construction Site |
l Log complaint and date of receipt
onto the complaint database and inform the IC(E) immediately;
l Investigate the complaint to determine
its validity, and assess whether the source of the problem is due to works
activities;
l Identify mitigation measures in
consultation with the IC(E) if a complaint is valid and due to works;
l Advise the Contractor if additional
mitigation measures are
required;
l Review the Contractor’s response to
identified mitigation measures, and the updated situation;
l If the complaint is transferred from
EPD, submit interim report to EPD on status of the complaint investigation and
follow-up action within the time frame assigned by EPD;
l Undertake additional monitoring and
audit to verify the situation if necessary, and review that circumstances
leading to the complaint to not recur;
l Report investigation results and
subsequent actions to complainant (if the source of complaint is EPD, the
results should be reported within the time frame assigned by EPD); and
l Record the complaint, investigation,
the subsequent actions and the results in the monthly EM&A reports.
l Establishment
of temporary access road and temporary drainage
l Slope
stabilization and upgrading works
l Temporary
traffic arrangement and road work at New Clear Water Bay Road, Sau Mau Ping
Road, Sau Fung Street , J2 and J/O Po Lam Road
l Toe / Berm
planter and platform drainage construction
l Retaining
wall structural works
l Trench
excavation and pipe laying
l RE wall
panel installation and backfilling
l Pipe pile
construction of Footbridge C
l Structural
works at Footbridges A, B and C
l Pipe
Jacking at Sau Mau Ping Road
l Earth work
and C&D stock pile
l Breaking of
rock trench at public road
l Drainage
construction at public road
l Construction
of the twin 1800mm dia. pipes
l Construction
of the coping structure at R15b
l Installation
of precast panel to Bridge A
l Installation
of noise barriers
l Waterworks
l Mini-pile
construction of Footbridge A tower B
-
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 areas with proper drainage system to handle
run-off from maintenance works;
-
Collection and segregation
of construction waste and general refuse should be carried out properly and regularly;
-
Site runoff should be
properly collected and treated prior to discharge;
-
Regular review and
maintenance of drainage systems and desilting facilities;
-
Exposed slopes/soil
stockpiles should be properly treated to avoid generation of silty surface
run-off during rainstorm;
-
Proper mitigation measures
should be provided to avoid relocation of treated contaminated soil;
-
Regular review and
maintenance of wheel washing facilities provided at all site entrances/exits;
-
Suppress dust generated
from work processes with use of bagged cements, earth movements, drilling
works, breaking works, excavation activities, exposed areas/slopes/soil
stockpiles and haul road traffic;
-
Conduct regular inspection
of the
working machineries within works area to avoid any dark smoke emission and oil
leakage;
-
Quieter powered mechanical
equipment should be used;
-
Provision of proper and
effective noise control measures, such as erection of movable noise barriers
during blasting, breaking and drilling works and at crushing plant works area and provision of acoustic material wrapping to breaking tips of
breakers; and
-
Proper protection and
regular inspection of existing trees, transplanted/retained trees.