Contents
Page
2.3 Construction Programme and
Activities
3 STATUS OF ENVIRONMENTAL LICENSES,
NOTIFICATION AND PERMITS
4.4 Monitoring
Parameters, Frequency and Duration
4.6 Monitoring Schedule for the
Reporting month
5.4 Monitoring Parameters, Frequency and
Duration
5.6 Monitoring
Schedule for the Reporting Month
6.4 Monitoring Parameters, Frequency and
Duration
6.7 Monitoring
Schedule for the Reporting Month
8 ENVIRONMENTAL SITE INSPECTION AND
AUDIT
9 IMPLEMENTATION STATUS OF
ENVIRONMENTAL MITIGATION MEASURES
10 SUMMARY OF EP SUBMISSION IN THE
REPORTING MONTH
11 ENVIRONMENTAL NON-CONFORMANCE
11.1 Summary of Monitoring Exceedances
11.2 Summary of Environmental
Non-Compliance
11.3 Summary of Environmental Complaints
11.4 Summary of Environmental Summon and
Successful Prosecutions
12.1 Construction Programme for the Next
Month
12.2 Key Issues for the Coming Month
12.3 Monitoring Schedule for the Next
Month
13 CONCLUSIONS AND RECOMMENDATIONS
List of Tables
Table
2.1 Contact Information of Key Personnel
Table 3.1 Status of Environmental Licenses, Notifications and
Permits
Table 4.1 Air Quality Monitoring Equipment
Table 4.2 Location of Air Quality Monitoring
Table 4.3 Air Quality Monitoring Parameters, Frequency and
Duration
Table 4.4 Summary of 1-hr TSP Monitoring Results
Table 4.5 Summary of 24-hr TSP Monitoring Results
Table 5.1 Noise Monitoring Equipment
Table 5.2 Location of Noise Monitoring
Table 5.3 Noise Monitoring Parameters, Frequency and Duration
Table 5.4 Summary of Noise Monitoring Results
Table 6.1 Water Quality Monitoring Equipment
Table 6.2 Water Quality Monitoring Parameters, Frequency and
Duration
Table 6.3 Locations of Water Quality Monitoring
Table 6.4 Action and Limit Levels for Water Quality Monitoring
Table 8.1 Observations and Recommendations of Site Audit
Table 10.1 Status of Required Submission under Environmental Permit
List of Figures
Figure 2 Air
and Noise Monitoring Locations
Figure 3 Water Quality Monitoring
Locations
List of Appendices
Appendix A Construction
Programme
Appendix B Project Organization
Structure
Appendix C Calibration Certificates
of Monitoring Equipment
Appendix D EM&A Monitoring
Schedules
Appendix E Meteorological Data
Extracted from Hong Kong Observatory
Appendix F Air Quality Monitoring Results and their Graphical
Presentation
Appendix G Summary of Event and
Action Plan
Appendix H Noise Monitoring Results
and their Graphical Presentation
Appendix I Laboratory Results for
Water Quality
Appendix J Water Quality Monitoring Results
and their Graphical Presentation
Appendix L Implementation Schedule of Environmental Mitigation
Measures (EMIS)
Appendix M Investigation Report for Exceedances
Appendix N Statistics on Complaints, Notifications
of Summons and Successful Prosecutions
The Entrusted Portion of Widening of Tolo
Highway / Fanling Highway between Island House
Interchange and Fanling Stage 2 (hereafter called
¡§the Project¡¨) covers part of the construction of the widening of Tolo Highway / Fanling Highway
between Island House Interchange and Fanling which
aimed to widen Tolo Highway and Fanling
Highway to dual 4-lane carriageway in order to alleviate the current traffic
congestion problems and to cope with the increasing transport demands to and
from the urban areas and also cross boundary traffic. The Project covers construction
activities at Yuen Leng along the existing Fanling Highway.
The impact EM&A for the Project includes air quality, noise and
water quality monitoring. The
EM&A programme commenced on 5 November 2013.
This report documents the findings of EM&A works conducted in February
2016. As informed by the
Contractor, the major activities in the reporting month were:
¡P
Decking
Construction for Bridge E;
¡P
Cable
Detection and Trial Trenches;
¡P
E
& M Work for New Valve Control & Telemetry House;
¡P
Filling
Works at Tong Hang East;
¡P
FRP
Lining on Existing Water Main;
¡P
Storm
Drains Laying;
¡P
Noise
Barrier Construction;
¡P
Pier
/ Pier Table Construction;
¡P
Pile
Cap Works;
¡P
Portal
Beam Construction;
¡P
Pre-drilling;
¡P
Retaining
Wall Construction;
¡P
Road
Works at Fanling Highway;
¡P
Sewer
Works;
¡P
Tree
Felling Works;
¡P
Utilities
Duct Laying;
¡P
Viaduct
Segment Erection;
¡P
Slope
Works; and
¡P
Water
Main Connection Works.
No exceedance of
Action and Limit Level was recorded for 24-hour TSP monitoring at the
monitoring location AM1(SR77) in the reporting month.
No exceedance of
Action and Limit Level was recorded for 1-hour TSP monitoring at the monitoring
location AM1(SR77) in the reporting month.
No noise complaint was received in the
reporting month, so no Action Level exceedance was
recorded. Also, no Limit Level exceedance of noise monitoring was recorded in the
reporting month.
One (1) exceedance
of Limit Level of Turbidity was recorded at the monitoring location I5 on 22
February 2016 in the reporting month. Two (2) exceedances of Action Level on Dissolved Oxygen were recorded at the monitoring location I5 on 19 February 2016 and 22 February 2016. Investigation for the exceedances
were conducted which concluded that the exceedances were
not related to the project works.
The investigation reports are presented in Appendix M.
The box culvert
works have been partially completed by the end of March 2014 except the last
construction activity, installation of a base slab at Box Culvert ID4. Due to the loading requirement of a
fresh water main under the box culvert, installation of the base slab at Box
Culvert ID4 originally scheduled from 19 February 2016. However, the mentioned
works were now cancelled and postponed to the next dry season after the
utilities diversions complete.
The construction
works are temporarily suspended until the utilities diversion works complete. The 4-week post construction water
quality monitoring will be commenced after the installation of the base slab
finishes, hence the completion of the box culvert works. Impact monitoring for
water quality was only carried out on 19 February 2016 and 22 February 2016 in the reporting
month and is anticipated to be resumed in the next dry season during the course
of remaining box culvert works.
No complaint, notification
of summons and successful prosecution was received in the reporting month.
The major
construction works in the coming reporting month are anticipated to include:
¡P
Cable
Detection and Trial Trenches;
¡P
Decking
Construction for Bridge E;
¡P
Filling
Works at Tong Hang East;
¡P
Storm
Drains Laying;
¡P
Noise
Barrier Construction;
¡P
Pier
/ Pier Table Construction;
¡P
Pile
Cap Works;
¡P
Portal
Beam Construction;
¡P
Pre-drilling
Works and Piling Works for Viaduct;
¡P
Retaining
Wall Construction;
¡P
Road
Works at Fanling Highway;
¡P
Sewer
Works;
¡P
Slope
Works;
¡P
Socket
H-pile Installation;
¡P
Tree
Felling Works;
¡P
Utilities
Duct Laying;
¡P
Viaduct
Segment Erection; and
¡P
Water
Main Connection Works.
Potential environmental impacts arising from
the above construction activities are anticipated to be mainly associated with
construction dust, noise, water quality and waste management.
1.1.1
Chun
Wo Construction &
Engineering Co Ltd (Chun Wo) was commissioned by the Civil
Engineering and Development Department (CEDD) as the Civil Contractor for the Entrusted
Portion of Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling Stage 2.
Meinhardt Infrastructure & Environment Ltd
(MIEL) has been appointed by Chun Wo
as the Environmental Team (ET) to fulfill the
corresponding EM&A requirements pursuant to Environmental Permit No. EP-324/2008/D in accordance with the Updated EM&A
Manual (dated October 2013) for Widening of Tolo
Highway/Fanling Highway between Island House
Interchange and Fanling Stage 2. The EM&A programme commenced in 5
November 2013.
1.2.1
This
is the monthly EM&A Report which summaries the impact monitoring results and
audit findings for the Project during the reporting month of February 2016.
1.3.1
This
monthly EM&A Report comprises the following sections:
¡P
Section
1: Introduction
¡P
Section
2: Project Information
¡P
Section
3: Status of Environmental Licenses, Notifications and Permits
¡P
Section
4: Air Quality Monitoring
¡P
Section
5: Noise Monitoring
¡P
Section
6: Water Monitoring
¡P
Section
7: Waste Management
¡P
Section
8: Environmental Site Inspection and Audit
¡P
Section
9: Implementation Status of Environmental Mitigation Measures
¡P
Section
10: Summary of EP Submission in the Reporting Month
¡P
Section
11: Environmental Non-Conformance
¡P
Section
12: Future Key Issues
¡P
Section
13: Conclusions and Recommendations
2.1.1
Tolo Highway and Fanling Highway are expressways
in the North East New Territories connecting Sha Tin,
Tai Po and Fanling. These highways form a vital part of the
strategic Route 1, which links Hong Kong Island to Shenzhen. At present, this section of Route 1 is a
dual 3-lane carriageway. However,
at several major interchanges along this section of Route 1, the highway is
only dual-2 lane. Severe congestion
is a frequent occurrence during peak periods, particularly in the Kowloon bound
direction.
2.1.2
The
objective of the Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling is to widen Tolo Highway
and Fanling Highway to dual 4-lane carriageway in
order to alleviate the current traffic congestion problems and to cope with the
increasing transport demands to and from the urban areas and also cross
boundary traffic.
2.1.3
The
construction works for the Widening of Tolo Highway /
Fanling Highway between Island House Interchange and Fanling are to be delivered in 2 stages:
¡P
Stage
1 ¡V Construction works between Island House Interchange and Tai Hang; and
¡P
Stage
2 ¡V Construction works between Tai Hang and Wo Hop Shek Interchange.
2.1.4
The
construction works of Stage 1 under the EP commenced in November 2009 and was planned
to be completed in December 2013 tentatively. The works of Stage 2 was planned to
commence in November 2013 and complete by end of 2016. Hyder-Arup-Black
and Veatch Joint Venture (HABVJV) was appointed by the Highways Department (HyD) as the consultants for the design and construction
assignment for the Project. Mott
MacDonald Hong Kong Ltd is the Independent Environmental Checker (IEC) of both
Stage 1 and Stage 2 works.
2.1.5
A
portion of Stage 2 works of Widening of Tolo Highway
/ Fanling Highway between Island House Interchange
and Fanling (hereafter called ¡§the Project¡¨) is
entrusted to the contractor of Contract No. CV/2012/09 Liantang
/ Heung Yuen Wai Boundary Control Point Site Formation and Infrastructure Works
Contract 3, i.e. Chun Wo. AECOM Asia Co Ltd was appointed by the
CEDD as the consultant for the design and construction assignment for the Liantang development.
2.1.6
The
Project is a Designated Project under the Environmental Impact Assessment Ordinance
(EIAO) (Cap. 499). An Environmental
Impact Assessment (EIA) Report together with an Environmental Monitoring and
Audit (EM&A) Manual were approved on 14 July 2000 (Register Number:
EIA-043/2000). The Project is governed
by an Environmental Permit (EP) (EP-324/2008) which was granted on 23 December
2008. A variation of EP (VEP) was
applied and the VEP (EP-324/2008/A) was subsequently granted on 31 January
2012. An additional VEP has been applied
on 24 February 2014 and the VEP (EP-324/2008/B) was subsequently granted on 17
March 2014. Furthermore, an additional VEP has been applied on
9 March 2015 and the VEP (EP-324/2008/C) was subsequently granted on 27 March
2015. The current VEP (EP-324/2008/D) was granted on 27 August 2015.
2.2.1
The
major construction activities under the Entrusted Portion of Widening of Tolo Highway / Fanling Highway
between Island House Interchange and Fanling Stage 2
include:
¡P
At-Grade
Road Works ¡V Temporary and permanent road formation, pipe laying, road drainage,
footpath and noise barrier construction;
¡P
Demolition
of existing Kiu Tau Footbridge and Footbridge Reprovision; and
¡P
Box
Culvert Extension ¡V Flow diversion of existing stream, excavation, sub-base and
blinding, base, wall and top slab construction.
2.2.2
Figure 1 shows the works areas for the
Entrusted Portion of Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling Stage 2.
2.3.1
The
major construction activities undertaken in the reporting month are summarized
below:
¡P
Decking
Construction for Bridge E;
¡P
Cable
Detection and Trial Trenches;
¡P
E
& M Work for New Valve Control & Telemetry House;
¡P
Filling
Works at Tong Hang East;
¡P
FRP
Lining on Existing Water Main;
¡P
Storm
Drains Laying;
¡P
Noise
Barrier Construction;
¡P
Pier
/ Pier Table Construction;
¡P
Pile
Cap Works;
¡P
Portal
Beam Construction;
¡P
Pre-drilling;
¡P
Retaining
Wall Construction;
¡P
Road
Works at Fanling Highway;
¡P
Sewer
Works;
¡P
Tree
Felling Works;
¡P
Utilities
Duct Laying;
¡P
Viaduct
Segment Erection;
¡P
Slope
Works; and
¡P
Water
Main Connection Works.
2.3.2
The
construction programme is presented in Appendix A.
2.4.1
The
project organization structure is shown in Appendix B. The key personnel contact names and
numbers for the Project are summarised in Table 2.1.
Table 2.1 Contact Information of Key Personnel
Party |
Role |
Position |
Name |
Telephone |
Fax |
AECOM |
Engineer¡¦s
Representative |
Senior
Resident Engineer |
Mr. Alan Lee |
2171 3303 |
2171 3498 |
Resident Engineer (Environmental) |
Mr. |
2171 3350 |
|||
Mott MacDonald |
Independent Environmental Checker (IEC) |
IEC |
Mr. Steven Tang |
2828 5920 |
2827 1823 |
Chun Wo |
Contractor |
Site Agent |
Mr. Daniel Ho |
2638 6144 |
2638 7077 |
Environmental Officer |
Mr. |
2638 6181 |
|||
Meinhardt |
Environmental Team (ET) |
ET Leader |
Mr. Fredrick Leong |
2859 1739 |
2540 1580 |
3.1.1
The
relevant environmental licenses, permits and/or notifications on environmental
protection for this Project and valid in the reporting month are summarized in Table 3.1.
Table 3.1 Status of Environmental Licenses, Notifications and Permits
Permit / License No. / Notification / Reference No. |
Valid Period |
Status |
Remarks |
|
From |
To |
|||
Environmental Permit |
||||
EP-324/2008/D |
27 Aug 2015 |
-- |
Granted on 27/08/2015 |
|
Construction Noise Permit |
||||
GW-RN0495-15 |
12 Aug 2015 |
11 Feb 2016 |
Valid |
For
stressing of tendons at the southward of site office in the night time |
GW-RN0497-15 |
14 Aug 2015 |
13 Feb 2016 |
Valid |
For
stressing of tendons at the northward of site office in the night time |
GW-RN0525-15 |
29 Aug 2015 |
13 Feb 2016 |
Valid |
For
road diversion and maintenance of Fanling Highway
Northbound |
GW-RN0542-15 |
1 Sep 2015 |
25 Feb 2016 |
Valid |
For
installation of temporary pedestrian ramp & demolition of existing
pedestrian ramp at Kiu Tau footbridge |
GW-RN0608-15 |
28 Sep 2015 |
29 Feb 2016 |
Valid |
For
formwork erection of portal PT5 |
GW-RN0633-15 |
15 Oct 2015 |
29 Feb 2016 |
Valid |
For
operating water pumping in Kiu Tau within
restricted hours |
GW-RN0655-15 |
1 Dec 2015 |
29 Feb 2016 |
Valid |
For
connection of the DN2300 Dongjiang watermain |
GW-RN0677-15 |
26 Oct 2015 |
29 Feb 2016 |
Valid |
For
formwork erection of AB10 |
GW-RN0699-15 |
10 Nov 2015 |
27 Feb 2016 |
Valid |
For
Segment erection of AC9 |
GW-RN0695-15 |
29 Nov 2015 |
28 Feb 2016 |
Valid |
For
coring works along Fanling Highway during public
holidays |
GW-RN0712-15 |
16 Nov 2015 |
29 Feb 2016 |
Valid |
For
formwork erection of pier AA12 to AD7 |
GW-RN0736-15 |
24 Nov 2015 |
29 Feb 2016 |
Valid |
For
saw-cut method of the DN2300 Dongjiang watermain |
GW-RN0765-15 |
1 Dec 2015 |
27 Feb 2016 |
Cancelled on 29
Jan 2016 |
For
segment erection crossing over MTRC¡¦s Rail Track of Pier AB11 and AD12 |
GW-RN0812-15 |
20 Dec 2015 |
29 Feb 2016 |
Valid |
For
lane shifting work at southbound of Fanling Highway |
GW-RN0837-15 |
23 Dec 2015 |
29 Feb 2016 |
Valid |
For
road diversion and maintenance of Fanling Highway
Southbound |
GW-RN0892-15 |
9 Jan 2016 |
8 Jul 2016 |
Valid |
For
loading and unloading along Fanling Highway both
bounds |
GW-RN0894-15 |
5 Jan 2016 |
27 Feb 2016 |
Valid |
For
falsework erection of Pier AB11 |
GW-RN0001-16 |
8 Jan 2016 |
27 Feb 2016 |
Valid |
For
segment erection of AC5 |
GW-RN0049-16 |
26 Jan 2016 |
29 Feb 2016 |
Valid |
For
general works on Tai Wo Service Road West |
GW-RN0056-16 |
2 Feb 2016 |
18 Mar 2016 |
Valid |
For
AB11 Crosshead Concreting |
GW-RN0060-16 |
1 Feb 2016 |
30 Jun 2016 |
Valid |
For
segment erection crossing over MTRC¡¦s Rail Track of Pier AB11 and AD12 |
GW-RN0064-16 |
16 Feb 2016 |
13 Aug 2016 |
Valid |
For
road diversion and maintenance of Fanling Highway
Northbound |
GW-RN0086-16 |
16 Feb 2016 |
7 May 2016 |
Valid |
For
segment erection of pier AA4, AB6, AD7 and AA18 |
GW-RN0113-16 |
25 Feb 2016 |
24 Aug 2016 |
Valid |
For
Segment Delivery to Kiu Tau |
Wastewater
Discharge License |
||||
WT00016832-2013 |
28 Aug 2013 |
31 Aug 2018 |
Valid |
-- |
Chemical
Waste Producer Registration
|
||||
5113-634-C3817-01 |
7 Oct 2013 |
-- |
Valid |
-- |
Billing
Account for Construction Waste Disposal |
||||
7017914 |
2 Aug 2013 |
-- |
Account Active |
-- |
Notification
Under Air Pollution Control (Construction Dust) Regulation |
||||
-- |
31 Jul 2013 |
30 Jul 2019 |
Notified |
-- |
4.1.1
In
accordance with the Updated EM&A Manual, 1-hr and 24-hr total suspended
particulate (TSP) levels at the designated air quality monitoring station are
required. Impact 24-hour TSP monitoring
should be carried out for at least once every 6 days. For the 1-hr TSP impact monitoring, the
sampling frequency of at least three times in every 6 days should be undertaken
when the highest dust impact occurs.
4.2.1
The
1hr- TSP and 24-hr TSP air quality monitoring were performed using a High
Volume Sampler (HVS), of which its location and operation satisfy, as far as
practicable, all the requirements as specified in the Updated EM&A Manual. The brand and model of the equipment are
given in Table 4.1.
Table 4.1 Air Quality Monitoring Equipment
Equipment |
Brand
and Model |
Quantity |
Serial Number |
High
Volume Sampler |
Tisch
Total Suspended Particulate Mass Flow Controlled High Volume Air Sampler
(Model No. TE-5170 MFC) |
1 |
2359 |
4.2.2
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.
4.2.3
Calibration
of the HVS (five point calibration) using Calibration Kit was carried out every
two months. The HVS calibration
orifice will be calibrated annually.
Calibration certificate of the TE-5025A Calibration Kit and the HVS are
provided in Appendix C.
4.3.1
Air
quality monitoring was conducted at the location specified in the Updated
EM&A Manual. Table 4.2 describes the details of the air
quality monitoring station with its location as shown in Figure 2.
Table 4.2 Location of Air Quality Monitoring
Air
Monitoring Station ID |
Monitoring
Location |
Description |
AM1(SR77)
* |
Yuen Leng 2 * |
Residential,
Ground floor |
Remark:
* Location
and Station / ASR ID as identified in Updated EM&A Manual / EIA Report for
Widening of Tolo Highway/Fanling
Highway between Island House Interchange and Fanling
4.4.1
Table 4.3 summarizes the monitoring
parameters, frequency and duration of impact TSP monitoring.
Table 4.3 Air Quality Monitoring Parameters, Frequency and Duration
Parameter |
Frequency
and Duration |
1-hour
TSP |
At least
three times in every 6 days should be undertaken when the highest dust impact
occur |
24-hour
TSP |
Once
every 6 days |
4.5.1
With
the consideration of criteria stated in the Updated EM&A Manual, the HVS
was installed in the vicinity of the air sensitive receivers.
4.5.2
The
relevant data including temperature, pressure, weather conditions, elapsed-time
meter reading for the start and stop of the sampler, identification and weight
of the filter paper, and any special phenomena observed were recorded. The weather information was referenced
from Hong Kong Observatory (http://www.weather.gov.hk/wxinfo/pastwx/extractc.htm).
4.5.3
A
HOKLAS accredited laboratory with constant temperature and humidity control,
and equipped with necessary measuring and conditioning instruments, to handle
the 24-hr TSP samples, was employed for sample analysis.
4.5.4
Filter
papers of size 8"x10" were labelled before sampling. They were inspected to be clean with no
pin holes and conditioned in a humidity controlled chamber for over 24-hr and
were pre-weighed before use for the sampling.
4.5.5
The
24-hr TSP levels were measured by following the standard high volume sampling
method for TSP as set out in the Title 40 of the United States Code of Federal
Regulations, Chapter 1 (Part 50), Appendix B. TSP was sampled by drawing air through a
conditioned, pre-weighted filter paper inside the HVS at a controlled air flow
rate. After 24-hr sampling, the
filter papers loaded with dust were kept in a clean and tightly sealed plastic
bag, and then returned to the laboratory for reconditioning in the humidity
controlled chamber followed by accurate weighing by an electronic balance with
a readout down to 0.1 mg.
4.5.6
All
the collected samples were kept in a good condition for 6 months before disposal.
4.5.7
For
1-hr TSP monitoring, monitoring methodology is the same as 24-hr TSP monitoring
which has been presented in Section 4.5.1 to Section 4.5.6, but with sampling period changed
to 1 hour.
4.6.1
The
schedule for environmental monitoring for the reporting month is provided in Appendix
D. Meteorological
data extracted from Hong Kong Observatory for the reporting month
is provided in Appendix E.
4.7.1
The
monitoring results for 1-hr and 24-hr TSP are summarised in Table 4.4 and Table 4.5 respectively. Detailed air quality monitoring results
and the graphical presentation of air quality monitoring data for the current
and past three reporting months are presented in Appendix F.
Table 4.4 Summary of 1-hr TSP Monitoring Results
ASR ID |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
AM1(SR77) * |
128.3 |
83.1 ¡V183.5 |
292.7 |
500 |
Remark:
* Station /
ASR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway
between Island House Interchange and Fanling
Table 4.5 Summary of 24-hr TSP Monitoring Results
ASR ID |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
AM1(SR77) * |
89.2 |
45.7 ¡V153.6 |
170.3 |
260 |
Remark:
* Station /
ASR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway
between Island House Interchange and Fanling
4.7.2
No
exceedance of Action and Limit Level was recorded for
24-hour TSP monitoring at the monitoring location AM1(SR77)
in the reporting month.
4.7.3
No
exceedance of Action and Limit Level was recorded for
1-hour TSP monitoring at the monitoring location AM1(SR77)
in the reporting month.
4.7.4
The
Event and Action Plan for the occurrence of non-compliance of the air quality
criteria is annexed in Appendix G.
5.1.1
In
accordance with the Updated EM&A Manual, the impact noise monitoring
frequency shall depend on the scale of the construction activities. An initial guide on the regular
monitoring frequency should be at least once per week when noise generating
activities are underway.
5.2.1
Noise
monitoring was performed using a sound level meter at the monitoring station. The sound level meter deployed complies with
the International Electrotechnical Commission
Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications. An acoustic calibrator was deployed to
check the sound level meter at a known sound pressure level. The brand and model of the equipment is
given in Table 5.1.
Table 5.1 Noise Monitoring Equipment
Equipment |
Brand and Model |
Quantity |
Serial Number |
Sound Level Calibrator |
Rion (Model No. NC-74) |
1 |
34857296 |
Sound Level Meter |
B&K (Model No. 2238) |
1 |
2694908 |
5.2.2
The
sound level calibrator and sound level meter were verified by a certified
laboratory every year. Calibration
certificates of the sound level meter and acoustic calibrator are provided in Appendix
C.
5.3.1
Impact
noise monitoring was conducted at the location specified in the Updated EM&A
Manual. Table 5.2 describes the details of the noise monitoring
station with its location as shown in Figure 2.
Table 5.2 Location of Noise Monitoring
NSR ID |
Monitoring Location |
Description |
M1(SR77) * |
Yuen Leng 2 * |
Residential, Ground floor |
Remark:
* Location and
Station / NSR ID as identified in Updated EM&A Manual / EIA Report for
Widening of Tolo Highway/Fanling
Highway between Island House Interchange and Fanling
5.4.1
Table 5.3 summarizes the monitoring
parameters, frequency and duration of impact noise monitoring.
Table 5.3 Noise Monitoring Parameters, Frequency and Duration
Parameter
and Duration |
Frequency |
30-mins
measurement at between 0700 and 1900 on normal weekdays. Leq, L10 and
L90 would be recorded. |
At least
once per week |
5.5.1
The monitoring procedures are summarised as follows:
¡P
The sound level meter was set on a tripod at a
height of 1.2 m above the ground for free-field measurements at monitoring
station SR77;
¡P
The battery condition was checked to ensure good
functioning of the meter;
¡P
Parameters such as frequency weighting, the time
weighting and the measurement time were set as follows:
¡P
Frequency weighting: A
¡P
Time weighting: Fast
¡P
Parameters: Leq, L10 and
L90
¡P
Time measurement: Leq(30-minutes)
during non-restricted hours i.e. 07:00 ¡V 19:00 hrs on
normal weekdays
¡P
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 1dB(A), the measurement would be considered invalid and
repeat of noise measurement would be required after re-calibration or repair of
the equipment.
¡P
At the end of the monitoring period, the Leq, L10 and L90 were recorded. In addition, site conditions and noise
sources were recorded on a standard record sheet.
¡P
A façade correction of +3dB (A) shall be made to
the noise parameter obtained by free field measurement.
5.6.1
The
schedule for environmental monitoring for the reporting month is provided in Appendix
D. Meteorological
data extracted from Hong Kong Observatory for the reporting month
is provided in Appendix E.
5.7.1
The monitoring results for noise are summarized in Table 5.4 and the monitoring results and the graphical
presentation of noise level for the current and past three reporting months are presented in Appendix
H.
Table 5.4 Summary of Noise Monitoring Results
Noise Monitoring Station ID |
Average, dB(A), Leq
(30min) (2) |
Range, dB(A), |
Action Level |
Limit Level, dB(A) |
M1(SR77) (1) |
63.7 |
62.5 ¡V 64.5 |
When one documented
valid complaint is received |
75 |
Remark:
(1) Station / NSR ID as identified in
Updated EM&A Manual / EIA Report for Widening of Tolo
Highway/Fanling Highway between Island House
Interchange and Fanling
(2) +3dB(A)
façade correction included
5.7.2
Major
noise sources during the noise monitoring included construction activities of
the Project and that along Tai Wo Service Road East, and
nearby traffic noise.
5.7.3
No
noise complaint was received in the reporting month, so no Action Level exceedance was recorded. Also, no Limit Level exceedance
of noise monitoring was recorded in the reporting month.
5.7.4
The Event and Action Plan for the occurrence of
non-compliance of the noise criteria is annexed in Appendix G.
6.1.1
The box culvert works have been partially completed
by the end of March 2014 except the last construction activity, installation of
a base slab at Box Culvert ID4. Due
to the loading requirement of a fresh water main under the box culvert,
installation of the base slab at Box Culvert ID4 originally scheduled from 19
February 2016. However, the mentioned works were now cancelled and postponed to
the next dry season after the utilities diversions complete.
6.1.2
The construction works are temporarily suspended
until the utilities diversion works complete. The 4-week post construction water
quality monitoring will be commenced after the installation of the base slab
finishes, hence the completion of the box culvert works.
6.1.3
Impact monitoring for water quality was only
carried out on 19 February 2016 and 22 February 2016 in the
reporting month. These samplings
were intended to serve as pioneer water monitoring before the commencement
of the construction works at the box culvert. However, the remaining
box culvert works has subsequently delayed and is anticipated
to be resumed in the next dry season.
As such, only 2 water quality monitoring has been recorded.
6.2.1 In accordance with the Updated EM&A Manual, during the course of the culvert extension works, monitoring shall be undertaken on three occasions per week. The interval between two sets of monitoring shall not be less than 36 hours except where there are exceedances of Action and/or Limit levels.
6.2.2 Since there was no box culvert works conducted in the reporting months, the water monitoring has been conducted for 2 sampling days only. The results are nonetheless included in Appendix I and Appendix J for reference.
6.3.1 The equipment used in the water quality monitoring programme is summarised in Table 6.1.
Table 6.1 Water Quality Monitoring Equipment
Equipment |
Model and Make |
Turbidity meter |
HACH Model 2100Q is (Serial No.
13120C029845) |
Multifunctional Meter (Scope of Test: Conductivity, Dissolved Oxygen, pH, Salinity and Temperature) |
Professional
Plus (Serial
No. 10D101566) |
6.3.2 The monitoring instruments were checked, calibrated and certified by a laboratory accredited under HOKLAS before use and subsequently re-calibrated at 3-monthly intervals throughout all stages of the water quality monitoring. Copies of the calibration certificates for the water quality monitoring equipment are attached in Appendix C.
6.4.1 Measurements for each monitoring station were conducted 3 days per week for the reporting month. Table 6.2 summarises the monitoring parameters, frequency and duration of the baseline water quality monitoring.
Table 6.2 Water Quality Monitoring Parameters, Frequency and Duration
Monitoring Stations |
Parameter, unit |
Frequency |
Control Stations: C3a and C3b Impact Station: I5 |
- Depth, m - Temperature, ¢XC - Salinity, ppt - pH - DO,
mg/L - DO
Saturation, % - Turbidity, NTU - SS, mg/L |
3 days per week |
6.5.1 According to the Updated EM&A Manual, measurements were taken at all impact and control stations as summarised in Table 6.3. The locations of the monitoring stations are shown in Figure 3.
Table 6.3 Locations of Water Quality Monitoring
Station |
Description |
Easting |
Northing |
I5 |
Downstream of Ma (Yuen Leng) |
833931 |
837859 |
C3a |
Upstream of Ma ( |
833816 |
837644 |
C3b |
Upstream of Ma (Yuen Leng) |
833931 |
837736 |
6.6.1 The parameters of in-situ measurements included water depth, dissolved oxygen (DO), dissolved oxygen saturation (DOS), turbidity level, pH value and water temperature.
6.6.2 Since water depths for all monitoring stations were less than 1m throughout the whole baseline measurement period, only mid-depth level was monitored.
6.6.3 At each monitoring station, at least duplicate readings of dissolved oxygen content and turbidity were taken. The probes were retrieved out of the water after the first measurement and then re-deployed for the second measurement.
6.6.4 Water samples were collected by the water sampler and filled into polyethylene bottles for laboratory determination of suspended solids. Sampling bottles were pre-rinsed with the same water samples, and filled up to the rim, capped tightly and labeled immediately. The sample bottles were then packed into a cool-box kept at 4¢XC, and delivered to a HOKLAS accredited laboratory, Enviro Labs Ltd. (HOKLAS no.: 128) for analysis. The results for laboratory analysis of suspended solids are presented in Appendix I.
6.7.1 The schedule for environmental monitoring for the reporting month is provided in Appendix D. Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix E.
6.8.1 The water quality criteria, namely Action and Limit Levels, as specified in the Updated EM&A Manual are shown in Table 6.4.
Table 6.4 Action and Limit Levels for Water Quality Monitoring
Parameters |
Action |
Limit |
DO in mg/L |
6.7 mg/L |
4 mg/L or 40% saturation at 15 degree Celsius |
SS in mg/L |
42.6 mg/L or 120% of upstream control
station¡¦s SS of the same day |
46.8 mg/L or 130% of upstream station¡¦s SS of the same day and specific sensitive receiver water quality requirements |
Turbidity (Tby) in NTU |
81.9NTU or 120% of upstream control station¡¦s Tby of the same day |
91.9NTU or 130% of upstream control station¡¦s Tby of the same day |
Notes:
For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits.
For SS and Tby, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.
6.8.2 The detailed water quality monitoring results and the graphical presentation of water quality monitoring data for the current and past three reporting months are presented in Appendix J.
6.8.3 The possible influences in monitoring results were suspected to be natural variation.
6.8.4 One (1) exceedance of Limit Level of Turbidity was recorded at the monitoring location I5 on 22 February 2016 in the reporting month. Two (2) exceedances of Action Level on Dissolved Oxygen were recorded at the monitoring location I5 on 19 February 2016 and 22 February 2016. Investigation for the exceedances were conducted which concluded that the exceedances were not related to the project works. The investigation reports are presented in Appendix M.
6.8.5
The Event and Action Plan for
the occurrence of non-compliance of the water quality criteria is annexed in Appendix
G.
7.1.1
The
Contractor has registered as a chemical waste producer of the Project. The C&D materials and waste sorting were
carried out on-site. Receptacles
were provided for general refuse collection.
7.1.2
As
advised by the Contractor, a total of 1,876m3 of excavated material
has been generated. 1,205m3 of inert C&D materials was disposed of
at public fill to Tuen Mun
Area 38. 20m3 of inert C&D
materials was reused on site. 110m3
of general refuse was disposed of at North East New Territories (NENT) Landfill. No plastics were collected by recycling
contractor in the reporting month. No paper/cardboard packaging was
collected by recycling contractor in the reporting month. No metals were collected by recycling
contractor in the reporting month. No
chemical waste was collected by licensed contractor in the reporting period. Details of the waste management data are
presented in Appendix K.
Table 8.1 Observations and Recommendations of Site Audit
Parameters |
Date |
Observations and Recommendations |
Follow-up |
Water
Quality |
1 February 2016 |
Observation: Wastewater was observed being
discharged without proper wastewater treatment near the works area opposite
to SA25. The Contractor was advised to review the wastewater treatment system
at the site. |
The Road side has been cleared of silty wastewater as observed during 18 Feb 2016 site
inspection. |
Air
Quality |
18 February 2016 |
Reminder: Contractor is reminded to maintain
site staff entering and leaving construction works sites through proper site
entrance and cleaned properly if necessary. |
Please refer to Observation identified during 22 Feb 2016 site inspection. |
22 February 2016 |
Observation: Muddy trail was observed outside
the site entrance SA22. The Contractor was advised to clear up the mud
outside the site entrance. |
The muddy trail and mud outside
SA22 was removed as observed during 29 Feb 2016 site inspection. |
|
22 February 2016 |
Reminder: The Contractor was reminded to
maintain the wheel washing facility at SA22. |
This item was improved as observed
during 29 Feb 2016 site inspection. |
|
29 February 2016 |
Reminder: The
Contractor was reminded to implement sufficient watering at SA22 for dust
suppression. |
This item was improved as observed
during 7 Mar 2016 site inspection. |
|
Noise |
N/A |
N/A |
N/A |
Waste / Chemical Managem-ent |
N/A |
N/A |
N/A |
Landscape
& Visual |
N/A |
N/A |
N/A |
Permits /
Licenses |
N/A |
N/A |
N/A |
9.1.1
The
Contractor has implemented the relevant environmental mitigation measures as specified
in the EIA Reports, EPs and updated EM&A Manual. The implementation status of
environmental mitigation measures during the reporting period is summarized in Appendix
L.
10.1.1 The status of the required
submission under the EP during the reporting period is summarized in Table 10.1.
Table 10.1 Status of Required Submission under Environmental Permit
EP
Condition |
Submission |
Submission
Date |
Condition
3.3 |
Monthly
EM&A Report for January 2016 |
12
February 2016 |
11.1.1 No exceedance
of Action and Limit Level was recorded for 24-hour TSP monitoring at the
monitoring location AM1(SR77) in the reporting month.
11.1.2 No exceedance
of Action and Limit Level was recorded for 1-hour TSP monitoring at the
monitoring location AM1(SR77) in the reporting month.
11.1.3 No noise complaint was received in
the reporting month, so no Action Level exceedance
was recorded. Also, no Limit Level exceedance of noise monitoring was recorded in the
reporting month.
11.1.4 One (1) exceedance
of Limit Level of Turbidity was recorded at the monitoring location I5 on 22
February 2016 in the reporting month. Two (2) exceedances
of Action Level on Dissolved Oxygen were recorded at the monitoring location I5
on 19 February 2016 and 22 February 2016.
Investigation for the exceedances were
conducted which concluded that the exceedances were
not related to the project works.
The investigation reports are presented in Appendix M.
11.2.1 No environmental non-compliance was
recorded in the reporting month.
The cumulative statistics are provided in Appendix N.
11.3.1 No
environmental complaints were received in the reporting month. The cumulative statistics are provided in Appendix
N.
11.4.1 No environmental related prosecution
or notification of summons was received in the reporting month. The cumulative statistics are provided
in Appendix N.
12.1.1 The major construction works in the coming
reporting month are anticipated to include:
¡P
Cable
Detection and Trial Trenches;
¡P
Decking
Construction for Bridge E;
¡P
Filling
Works at Tong Hang East;
¡P
Storm
Drains Laying;
¡P
Noise
Barrier Construction;
¡P
Pier
/ Pier Table Construction;
¡P
Pile
Cap Works;
¡P
Portal
Beam Construction;
¡P
Pre-drilling
Works and Piling Works for Viaduct;
¡P
Retaining
Wall Construction;
¡P
Road
Works at Fanling Highway;
¡P
Sewer
Works;
¡P
Slope
Works;
¡P
Socket
H-pile Installation;
¡P
Tree
Felling Works;
¡P
Utilities
Duct Laying;
¡P
Viaduct
Segment Erection; and
¡P
Water
Main Connection Works.
12.2.1 Key issues to be considered in the
coming month are anticipated to include:
¡P
Site
discharges should be properly collected and treated prior to discharge;
¡P
Properly
maintain all drainage facilities and wheel washing facilities on site;
¡P
Expose
slopes and dusty stockpile should be covered up properly if no work will be
conducted;
¡P
Operation
of construction plant should be sequenced where practicable;
¡P
Good
housekeeping should be maintained and general refuse should be removed
regularly;
¡P
Chemical
waste should be stored, handled and disposed of properly;
¡P
Properly store and label oils and chemicals
on site; and
¡P
A
spill response procedure shall be in place and absorption material available
for minor spillages.
12.3.1 The tentative schedule for
environmental monitoring for the coming month is provided in Appendix D.
13.1.1 The construction phase EM&A
programme of the Project commenced on 5 November 2013.
13.1.2 The 1-hr TSP, 24-hr TSP and noise
monitoring were carried out in the reporting period.
13.1.3 No exceedance
of Action and Limit Level was recorded for 24-hour TSP monitoring at the
monitoring location AM1(SR77) in the reporting month.
13.1.4 No exceedance
of Action and Limit Level was recorded for 1-hour TSP monitoring at the
monitoring location AM1(SR77) in the reporting month.
13.1.5 No noise complaint was received in
the reporting month, so no Action Level exceedance
was recorded. Also, no Limit Level exceedance of noise monitoring was recorded in the
reporting month.
13.1.6 One (1) exceedance
of Limit Level of Turbidity was recorded at the monitoring location I5 on 22
February 2016 in the reporting month. Two (2) exceedances
of Action Level on Dissolved Oxygen were recorded at the monitoring location I5
on 19 February 2016 and 22 February 2016.
Investigation for the exceedances were
conducted which concluded that the exceedances were
not related to the project works.
The investigation reports are presented in Appendix M.
13.1.7 Four (4) environmental site inspections were
carried out in the reporting month.
Recommendations on remedial actions were given to the Contractors for
the deficiencies identified during the site audit.
13.1.8 The box culvert works have been
partially completed by the end of March 2014 except the last construction
activity, installation of a base slab at Box Culvert ID4. Due to the loading requirement of a
fresh water main under the box culvert, installation of the base slab at Box
Culvert ID4 originally scheduled from 19 February 2016. However, the mentioned
works were now cancelled and postponed to the next dry season after the utilities
diversions complete.
13.1.9 The construction works are
temporarily suspended until the utilities diversion works complete. The 4-week post construction water
quality monitoring will be commenced after the installation of the base slab
finishes, hence the completion of the box culvert works. Impact monitoring for
water quality was only carried out on 19 February 2016 and 22 February 2016 in
the reporting month and is anticipated to be resumed in the next dry season
during the course of remaining box culvert works.
13.2.1 According to the environmental site
inspections performed in the reporting month, the following recommendations
were provided:
¡P
Water
treatment facilities should be properly maintained and avoid untreated water
entering storm drain.
¡P
Proper
drainage channels/bunds should be provided at the site boundaries to
collect/intercept the surface run-off from works areas.
¡P
Water
spraying or covering of tarpaulin should be properly implemented whenever necessary for the unpaved roads,
access roads and construction areas.
¡P
All
vehicles should be washed to remove any dusty materials before leaving the
construction site.
Noise
¡P
Vessels
and equipment operating should be checked regularly and properly maintained.