|
Appendixes |
|
|
Appendix A Site Map and Works Area
Appendix D Implementation Status of
Environmental Mitigation Measures
Appendix E Monitoring Locations
Appendix G Interim Notifications of
Environmental Quality Limits Exceedances
|
TABLES |
|
|
Table 3-1 Frequency of Air Quality; Noise and Water
Quality Monitoring
Table 3-2 Air Quality Monitoring Locations
Table 3-3 Noise Monitoring Locations
Table 3-4 Water Quality Monitoring Locations
Table 3-5 Action & Limit Levels for Air Quality
Table 3-6 Action & Limit Levels for Noise
Table 3-7 Action & Limit Levels for Water
Quality
Table 3-8 Summary of Air Quality Monitoring Results
Table 3-9 Summary of Impact Noise Monitoring Results
Table 3-10 Summary of Impact Water Quality Monitoring
Results
Table 4-1 Waste Generated from July to September
2009
Table 4-2 Summary of Project- related Exceedances
Table 5-1 Cumulative
Statistic of Environmental Complaints
Table 6-1 Cumulative Statistics of notification of
summons and successful prosecutions
1
This
quarterly EM&A summary report under the Main Contract for the Design and
Construction of Tsuen Wan Drainage Tunnel (hereafter referred to as the
“Project”) to Maeda-CREC-SELI Joint Venture (MCSJV), which summarises the
findings of environmental impact monitoring works during the period from July
to September 2009.
2
Noise monitoring
was performed at five monitoring stations (NSR1, NSR3, NSR6, NSR8 and
NSR9). Air quality monitoring was
carried out at four monitoring stations (ASR1, ASR3, ASR8 and ASR9). Water quality monitoring was carried out at
three monitoring stations (Intake I-1, Intake I-2 and Intake I-3). Noise level
was measured in terms of Leq, L10 and L90 (30min). Air quality was measured in terms of 1-hour
Total Suspended Particulates (TSP). Water quality was measured in terms of
Temperature, pH, Dissolved Oxygen (DO), Turbidity (Tby) and Suspended Solid
(SS).
3 Details of all monitoring stations are summarized in the below table.
|
Type of Monitoring |
Monitoring Station ID |
Name of Premises |
Status of Monitoring Works during the Reporting Period |
|
Air Quality
Monitoring |
ASR1 |
|
Ongoing |
|
ASR3 |
|
Ongoing |
|
|
ASR8 |
|
Ongoing |
|
|
ASR9 |
Greenview
Terrace (Block 1) |
Ongoing |
|
|
Noise
Monitoring |
NSR1 |
|
Ongoing |
|
NSR3 |
|
Ongoing |
|
|
NSR6 |
Squatters |
Ongoing |
|
|
NSR8 |
|
Ongoing |
|
|
NSR9 |
Greenview
Terrace (Block 1) |
Ongoing |
|
|
Water
Quality Monitoring |
I-1 |
Intake I-1 |
Ongoing |
|
I-2 |
Intake I-2 |
Ongoing |
|
|
I-3 |
Intake I-3 |
Ongoing |
|
|
O-1 |
Outfall
O-1 |
Not yet
commenced until construction of stilling basin is in place. |
4
The major construction
activities undertaken by the Contractor during the period from July to
September 2009 include site cleaning and tidying and
tree transplanting at I-1, I-2, I-3 and Outfall; drilling rig at I-3 and
Outfall; soil nailing at I-1, I-3 and Outfall; breaking up exiting boulder at I-1, I-2, I-3 and
Outfall; formation of access road at I-3 and Outfall; erosion control mat and
green wire mesh at Outfall; Excavation and Lateral Support (ELS) at I-1;
construction of skin wall at I-2 and I-3; and formation of steel platform at
I-2.
5
No
construction activities were carried out during the restricted hours during the
reporting period.
6
No water
quality monitoring was done on 4 July, 27 July and 12 August 2009 due to
thunderstorm warning.
7
No project
related exceedance of air quality and water quality monitoring was recorded.
For noise monitoring, no exceedance of Limit level was recorded, however, six
environmental complaints on noise trigger the excceedances of Action Levels
during the reporting period. The below table summarizes the exceedances of air
quality, noise and water quality in the reporting period.
|
Parameter |
Action
Level Exceedance |
Limit
Level Exceedance |
|
Air |
Nil |
Nil |
|
Noise |
Five complaints were received on 29 July,
11, 12, 14 and 17 August 2009 One complaint was received on 7 September
2009 |
Nil |
|
DO |
Nil |
Nil |
|
Turbidity |
One
recorded at I-3 on 20 July 2009 (non project related) |
One
recorded at I-2 on 24 July 2009 (non project related) |
|
SS |
Two
recorded at I-1 and I-3 on 6 and 20 July 2009 (non project related) One
recorded at I-1 on 28 August 2009 (non project related) One
recorded at I-1 on 16 September 2009 (non project related) |
Six
recorded at I-1, I-2 and I-3 on 6, 8, 10, 13 and 24 July 2009 (non project
related) Two
recorded at I-1 and I-2 on 14 August 2009 (non project related) Two
recorded at I-1 and I-3 on 11and 14 September 2009 (non project related) |
8 Waste figures during the reporting period are summarized in the below table.
|
Status of Waste Management |
|
|
Inert
C&D Material Disposed of to Public Fill at Tuen Mun (m3) |
13,396.5 |
|
Inert
C&D Material Reused in other Contract* (m3) |
8,280.0 |
|
Metals
Generated (kg) |
Nil |
|
Paper /
Cardboard Packaging (kg) |
700.0 |
|
Plastics
(kg) |
Nil |
|
Chemical
Waste (kg) |
Nil |
|
General
Waste Disposed of to NENT Landfill (m3) |
43.9 |
* Other Contracts include Proposed Rural Theme Park-Yuen Long,
9 During the reporting period, seven environmental
complaints were received. One environmental complaint was received by EPD on 10 July 2009
regarding construction dust from the Outfall Construction Site. The
complaint was considered not justifiable since no action & limit level
exceedance on construction dust were identified. Two environmental complaints were received by SOR on 29 July and 11 August
2009 regarding daytime construction noise exceedances recorded at Greenview
Terrace (NSR9) on 8, 22, 23, 27 and 29 July 2009 and a large amount dust
generated at the outfall construction site. Two other environmental
complaints from Greenview Terrace were received by SOR via Apple Daily on 12
August 2009 and by EPD on 14 August 2009. These complaints also referred to the
daytime construction noise level exceedances and construction dust generated at
the outfall construction site. One environmental complaint from
10
No
Notification of Summons was received since the commencement of the Project.
1.1.1
The
Drainage Services Department (DSD) proposes to construct a tunnel of an
internal diameter of 6.5m and length 5.13km, with the purpose to alleviate the
flooding risk in Tsuen Wan and Kwai Chung.
1.1.2
This
project is a Designated Project under Schedule 2 Part I Category Q, of the
Environmental Impact Assessment Ordinance (EIAO) as part of the proposed Tsuen
Wan Drainage Tunnel (TWDT) passes underneath the existing Tai Mo Shan Country
Park. An Environmental Impact Assessment
(EIA) Study has therefore been undertaken to provide information on the nature
and extent of environmental impacts arising from the construction and operation
of the proposed designed project and related activities taking place
concurrently. From the EIA the
recommendations for monitoring contained herein, are made.
1.1.3
The Maeda-CREC-SELI
Joint Venture (MCSJV) was awarded by DSD with
the Contract – Design and Construction of Tsuen Wan Drainage Tunnel.
1.1.4
Hyder was
commissioned by the MCSJV as the ET to implement an EM&A program in
accordance with the EM&A Manual. The
proposed tunnel section flows from the junction of Shing Mun Road and Wo Yi Hop
Road and discharges to south of Yau Kom Tau underneath Castle Peak Road as
shown in Appendix A.
1.1.5 The construction works of the Project commenced on January 2008. This is the sixth quarterly EM&A report summarising the impact monitoring results and audit findings of the EM&A program during the reporting period in July – September 2009.
2.1 Project Organization and Management Structure
2.1.1 The organization chart and lines of communication with respect to the on-site environmental management are shown in Appendix B.
2.2.1
It is
anticipated that the overall project programme from the detail design to
completion of all civil works shall take approximately 54 months. The construction programme is presented in Appendix
C.
2.2.2
The major
construction activities undertaken in the reporting quarter are:
· Site cleaning and tidying at I-1, I-2, I-3 and Outfall;
· Tree transplanting at I-1, I-2, I-3 and Outfall;
· Drilling rig at I-3 and Outfall;
· Soil nailing at I-1, I-3 and Outfall;
· Breaking up exiting boulder at I-1, I-2, I-3 and Outfall;
· Formation of access road at I-3 and Outfall;
· Erosion control mat and green wire mesh at Outfall;
· Excavation and Lateral Support (ELS) at I-3;
· Construction of skin wall at I-2 and I-3; and
· Formation of steel platform at I-2;
2.3.1 The environmental mitigation measures that have been implemented and their status are given in Appendix D.
3.1.1 The EM&A requirements are stipulated in the EM&A Manual. The principal purposes of the EM&A program are to assess the compliance with applicable environmental legislation and associated regulations; to ensure the implementation of mitigation measures specified in the EM&A Manual; and to identify any remedial works necessary for redressing any unacceptable or unanticipated environmental impacts.
3.2 EM&A on Air Quality; Noise and Water Quality
3.2.1
The air
quality, noise and water quality frequencies and parameters are shown in Table 3-1.
|
Type of Monitoring |
Monitoring Station ID |
Parameter |
Frequency |
|
Air Quality
Monitoring |
ASR1; ASR3;
ASR8 and ASR9 |
1-hour TSP |
Once every 6-day |
|
Noise
Monitoring |
NSR1; NSR3;
NSR6; NSR8 and NSR9 |
Leq (30 min.) |
Once every week |
|
Water Quality
Monitoring |
I-1; I-1-C;
I-2; I-2-C; I-3; I-3-C |
DO (mg/l) |
Three days per week |
|
SS (mg/l) |
|||
|
Turbidity (NTU) |
|||
|
pH |
|||
|
Temperature (oC) |
Table 3-1 Frequency of Air Quality; Noise and Water Quality Monitoring
3.3.1 The monitoring locations for air quality; noise and water quality are shown in Tables 3-2; 3-3; 3-4 and Appendix E.
|
Monitoring Station ID |
Name of Premises |
Floor Level |
|
ASR1 |
|
G/F |
|
ASR3 |
|
Podium |
|
ASR8 |
|
G/F |
|
ASR9 |
Greenview Terrace (Block 1) |
G/F |
Table 3-2 Air Quality Monitoring Locations
|
Name of Premises |
Floor Level |
|
|
NSR1 |
|
G/F |
|
NSR3 |
|
Podium |
|
NSR6 |
Squatters |
G/F |
|
NSR8 |
|
G/F |
|
NSR9 |
Greenview Terrace (Block 1) |
Podium (up to 6 July2009) Roof* (from 16 July 2009) |
* The noise monitoring location of NSR9 had been adjusted at rooftop from 16 July 2009.
Table 3-3 Noise Monitoring Locations
|
Monitoring Station ID |
Name of Premises |
|
I-1 |
Intake I-1 |
|
I-1-C |
Control of Intake I-1 |
|
I-2 |
Intake I-2 |
|
I-2-C |
Control of Intake I-2 |
|
I-3 |
Intake I-3 |
|
I-3-C^ |
Control of Intake I-3 |
|
O-1 (FT)* |
Outfall 1During Flood Tide |
|
O-1 (ET)* |
Outfall 1During Ebb Tide |
|
O-1-C (FT)*# |
Control of Outfall O-1 During Flood Tide |
|
O-1-C (ET)*# |
Control of Outfall O-1 During Ebb Tide |
Note: *Water
quality monitoring will be undertaken when the construction of rip rap is in
placed.
#Note that there are two control stations for
Outfall O-1; one for sampling during flood tide and one for sampling during ebb
tide. Only one of those control stations
for Outfall O-1 shall be sampled during each sampling. Control station to be sampled will be
determined base on the tidal information provided by the Hong Kong Observatory.
^ The
upper stream location (I-3-C^) had been relocated from end of February 2009 due
to coarse stone blockage.
Table 3-4 Water Quality Monitoring Locations
3.4
Performance Limits (
3.4.1
In accordance
with the EM&A Manual; the appropriate Action and Limit Levels for Air
Quality; Noise and Water Quality were established and are presented in Table 3-5; Table 3-6 and Table 3-7. Should non-compliance of the air quality;
noise and water quality criteria occur; actions in accordance with the Event /
Action Plan stipulated in contract specific EM&A Manual should be carried
out.
|
Station |
1-hr TSP Level in μg/m3 |
|
|
Action Level |
Limit Level |
|
|
ASR1 |
307 |
500 |
|
ASR3 |
327 |
500 |
|
ASR8 |
337 |
500 |
|
ASR9 |
329 |
500 |
Table 3-5 Action & Limit Levels for Air Quality
|
Time Period |
Action |
Limit |
|
0700 – 1900 hrs on normal weekdays |
When one documented complaint is received |
75 dB(A)* |
* For
educational establishments the limit level shall be 70dB(A) and reduced to
65dB(A) during examination periods between 0700-1900 hrs on normal weekdays.
Table 3-6 Action & Limit Levels for Noise
|
Parameters |
Action |
Limit |
|
DO in mg/l (Surface; Middle & Bottom) |
Surface & Middle 5%-ile of baseline data for surface and
middle layer. Bottom 5%-ile of baseline data for bottom layer. |
Surface & Middle 4mg/l except 5mg/l for FCZ or 1%-ile of baseline data for surface and
middle layer Bottom 2mg/l or 1%-ile of baseline data for
bottom layer |
|
SS in mg/l (Depth-averaged) |
95%-ile of baseline data or 120% of
upstream control station’s SS at the same tide of the same day |
99%-ile of baseline or 130% of upstream control
station’s SS at the same tide of the same day and specific sensitive receiver
water quality requirements (e.g. required suspended solids levels for
concerned sea water intakes) |
|
Turbidity (Tby) in NTU (Depth-averaged) |
95%-ile of baseline data or 120% of
upstream control station’s Tby at the same tide of the same day |
99%-ile of baseline or 130% of upstream
control station’s Tby at the same tide 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.
· All the figures given in the table are used for reference only and the EPD may amend the figures whenever it is considered as necessary.
Table 3-7 Action & Limit Levels for Water Quality
3.5.1
All
measured air quality monitoring levels were complying with the Action and Limit
Levels in the reporting period. A summary of air quality monitoring results is
presented in Table 3-8 and Appendix
F.
|
1-hour TSP (mg/m3) |
Action Level |
Limit Level |
|||
|
Range |
(mg/m3) |
(mg/m3) |
|||
|
ASR1 |
36.8 |
- |
209.5 |
307 |
500 |
|
ASR3 |
22.7 |
- |
197.5 |
327 |
500 |
|
ASR8 |
21.6 |
- |
205 |
337 |
500 |
|
ASR9 |
41.1 |
- |
239.5 |
329 |
500 |
Italic
indicates the exceedances of Action Levels
Bold indicates the exceedances of Limit Levels
Table 3-8 Summary of Air Quality Monitoring Results
3.5.2 Six Action Level exceedances for noise monitoring was recorded in the reporting quarter as six noise complaints were received on 29 July, 11, 12, 14 and 17 August as well as 7 September 2009. All measured noise monitoring levels were complying with the Limit Level in the reporting period. A summary of noise monitoring results is presented in Table 3-9 and Appendix F.
|
Leq (30mins) dB(A) |
Limit Level |
|||
|
Range |
dB(A) |
|||
|
NSR1 |
64 |
- |
69 |
70 |
|
NSR3 |
68 |
- |
73 |
75 |
|
NSR6 |
52 |
- |
59 |
75 |
|
NSR8 |
63 |
- |
69 |
75 |
|
NSR9 |
70 |
- |
75 |
75 |
Bold indicates
the exceedances of Limit Levels
Table 3-9 Summary of Impact Noise Monitoring Results
3.5.3
A summary
of water quality monitoring results is presented in Table
3-10 and Appendix
F.
3.5.4
No water
quality monitoring was done on 4 July, 27 July and 12 August 2009 due to
thunderstorm warning.
3.5.5
None of exceedance
related to project construction activities was recorded during reporting
quarter but a total of ten non project related exceedances were recorded.
3.5.6
A total of eight non project related exceedances
were recorded in July 2009 including:
§
exceedance
of Control Limit Level of SS (130% higher than I-1-C) recorded on 10 July and
exceedance of Control Action Level of SS (120% higher than I-1-C) recorded on
20 July at I-1 were
below baseline Action / Limit Level and were within the range of baseline SS concentration.
No direct disturbance was observed from the site. The
exceedance was considered to be contributed by natural variation and no action
was therefore required.
§
exceedances of Control Limit
Level of SS (130% higher than I-2-C) recorded at I-2 on 6, 8, and 13 July were below baseline Action / Limit Level and were
within the range of baseline SS concentration. No direct disturbance was
observed from the site. The exceedances were considered to be contributed by
natural variation and no action was therefore required.
§ exceedance of Baseline Limit Level of turbidity recorded at I-2 on 24 July was below the turbidity level at 1-2-C. The exceedance of Baseline Limit Level of SS recorded on 24 July at I-2 was slightly above the SS level at I-2-C and still complied within the Action and Limit levels at control station (I-2-C). No direct disturbance was observed from the site. The exceedances were considered to be contributed by other sources at upstream and no action was therefore required.
§ exceedance of Control Action Level of SS (120% higher than I-3-C) recorded on 6 July and exceedance of Control Limit Level of SS (130% higher than 1-3-C) recorded on 10 July at I-3 were below both baseline Action and Limit Levels and were within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedances were considered to be contributed by natural variation and no action was therefore required.
§ exceedance of Baseline Action Level of turbidity recorded on 20 July at I-3 was below the turbidity level at 1-3-C and no exceedance of SS level was recorded for this monitoring. No direct disturbance was observed from the site. The exceedances were considered to be contributed by natural variation and no action was therefore required.
3.5.7
A total of three non project related exceedances
were recorded in August 2009 including:
§ exceedance of Control Limit Level of SS (130% higher than I-1-C) recorded at I-1 on 14 August 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedance was considered to be contributed by natural variation and no action was therefore required.
§ exceedance of Control Action Level of SS (120% higher than I-1-C) recorded at I-1 on 28 August 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedance was considered to be contributed by natural variation and no action was therefore required.
§ exceedance of Control Limit Level of SS (130% higher than I-2-C) recorded at I-2 on 14 August 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedance was considered to be contributed by natural variation and no action was therefore required.
3.5.8
A total of three non project related exceedances
were recorded in September 2009 including:
§ exceedance of Control Limit Level of SS (130% higher than I-1-C) recorded at I-1 on 11 September 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedance was considered to be contributed by natural variation and no action was therefore required.
§ exceedance of Control Action Level of SS (120% higher than I-1-C) recorded at I-1 on 16 September 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. The exceedance was considered to be contributed by natural variation and no action was therefore required.
§ exceedance of Control Limit Level of SS (130% higher than I-3-C) recorded at I-3 on 14 September 2009 was below baseline Action / Limit Level and was within the range of baseline SS concentration. No direct disturbance was observed from the site. The exceedance was considered to be contributed by natural variation and no action was therefore required
3.5.9
The
above mentioned exceedances were considered as non project related, however,
proper mitigation measures had been implemented during measurements. Details of
the above mentioned investigations could be referred to the notifications of
exceedances as enclosed in Appendix
G.
|
Monitoring Station |
Temperature |
DO (mg/L) |
pH |
Turbidity (NTU) |
Suspended Solid (mg/L) |
||||||||||||||||||||||||||
|
Range |
Range |
Action
/ Limit Level |
Range |
Range |
Action
/ Limit Level |
Range |
Action
/ Limit Level |
||||||||||||||||||||||||
|
I-1 |
25.70 |
- |
29.00 |
3.43 |
- |
7.32 |
3.42 |
/ |
3.34 |
5.32 |
- |
7.76 |
2.07 |
- |
7.47 |
9.75 |
/ |
12.47 |
2.00 |
- |
8.30 |
8.85 |
/ |
10.17 |
|||||||
|
I-1-C |
25.25 |
- |
28.80 |
3.15 |
- |
7.59 |
|
- |
|
5.28 |
- |
7.86 |
2.21 |
- |
7.63 |
|
- |
|
2.00 |
- |
8.70 |
|
- |
|
|||||||
|
I-2 |
25.15 |
- |
28.80 |
3.71 |
- |
7.40 |
3.66 |
/ |
3.63 |
5.41 |
- |
7.81 |
1.03 |
- |
40.40 |
6.63 |
/ |
6.99 |
2.00 |
- |
59.45 |
7.68 |
/ |
8.34 |
|||||||
|
I-2-C |
25.50 |
- |
28.90 |
3.16 |
- |
7.55 |
|
- |
|
5.50 |
- |
7.66 |
1.09 |
- |
41.45 |
|
- |
|
2.00 |
- |
58.85 |
|
- |
|
|||||||
|
I-3 |
25.30 |
- |
28.70 |
3.74 |
- |
7.50 |
3.65 |
/ |
3.51 |
5.41 |
- |
7.71 |
1.17 |
- |
4.00 |
3.99 |
/ |
4.18 |
2.00 |
- |
4.10 |
6.13 |
/ |
7.23 |
|||||||
|
I-3-C |
25.35 |
- |
28.55 |
3.49 |
- |
7.19 |
|
- |
|
5.38 |
- |
7.72 |
1.44 |
- |
4.38 |
|
- |
|
2.00 |
- |
2.85 |
|
- |
|
|||||||
|
|||||||||||||||||||||||||||||||
Note: Italic indicates the exceedances of
Action Levels
Bold indicates the exceedances of Limit Levels
Table 3-10 Summary of Impact Water Quality Monitoring Results
4 Quarterly Summary; Environmental Condition and Non-Compliance Records
4.1 Summary of Waste Disposal Records
4.1.1 According to the information provided by the Contractor; the quantities of C&D materials in the reporting period are summarized in Table 4-1.
|
Status of Waste Management |
July 09 |
August 09 |
September 09 |
|
Inert C&D Material Disposed of to Public Fill at Tuen Mun (m3) |
3,219.0 |
6,403.3 |
3,774.2 |
|
Inert C&D Material Reused in other Contract* (m3) |
3,615.0 |
2,695.0 |
1,970.0 |
|
Metals Generated (kg) |
Nil |
Nil |
Nil |
|
Paper / Cardboard Packaging (kg) |
400.0 |
Nil |
300 |
|
Plastics (kg) |
Nil |
Nil |
Nil |
|
Chemical Waste (kg) |
Nil |
Nil |
Nil |
|
General Waste Disposed of to NENT Landfill (m3) |
9.6 |
11.7 |
22.6 |
*
Other Contracts include Proposed Rural Theme Park-Yuen Long,
Table 4-1 Waste Generated from July to September 2009
4.2.1 The weather conditions during the period from July to September 2009 were mainly sunny, cloudy and sometimes fine weather.
4.3 Summary of Project-Related Exceedances
4.3.1 Summary of exceedance results are summarized in Table 4-2. For the exceedances that are considered to be non-related to the construction activities; please refer to the monthly EM&A reports separately. Appendix G shows the Interim Notifications of Environmental Quality Limits Exceedances recorded in the reporting period.
|
Environmental Monitoring |
Total No. of Measurement |
Action Level Exceedance |
% of Action Level Exceedance |
Limit Level Exceedance |
% of Limit Level Exceedance |
|
Air Quality |
192 |
0 |
0 |
0 |
0 |
|
Noise |
79 |
6 (complaints) |
7.6% |
0 |
0 |
|
Water |
222 |
0 |
0 |
0 |
0 |
Table 4-2 Summary of Project- related Exceedances
5.1.1
A complaint
hotline at 9850 3241 of the Contractor has been established for the
Project.
5.1.2
During the
reporting period, seven
environmental complaints were received.
5.1.3
One environmental complaint was received by EPD on 10 July 2009
regarding construction dust from the Outfall Construction Site. The complaint
was considered not justifiable since no action & limit level exceedance on
construction dust were identified. Detail of the complaint investigation can be
referred to Appendix H.
5.1.4
Two environmental complaints were received by SOR on 29 July and 11 August
2009 regarding daytime construction noise exceedances recorded at Greenview
Terrace (NSR9) on 8, 22, 23, 27 and 29 July 2009 and a large amount dust
generated at the outfall construction site. Two other environmental complaints from Greenview Terrace were
received by SOR via Apple Daily on 12 August 2009 and by EPD on 14 August 2009.
These complaints also referred to the daytime construction noise level
exceedances and construction dust generated at the outfall construction site. One environmental complaint was
received by SOR on 7 September 2009 regarding daytime construction noise
exceedance recorded at Greenview Terrace (NSR9) on 22 August 2009 at the
outfall construction site. In accordance with the 1-hr TSP monitoring from July
to August 2009, all 1-hr TSP concentrations at ASR9 were below the established
Action and Limit Levels and no exceedance of 1-hr TSP was recorded during this
period. However, the dust complaint on 22 July 2009 was found due to the soil
nailing works. The documented complaints for noise were considered to trigger
the action level and the Contractor was reminded to enhance the on-site noise
mitigation measures, such as tools box talk for Contractor’s Team was carried
out for reminding that the movable barrier should be placed to the breaking
activities as much as possible, three movable noise barriers had been placed on
site and the movable noise barriers were modified, a joint filler wall was
installed at the vertical face of westbound to mitigate the noise rebound from
the vertical face to high level of Greenview Terrace and noise monitoring
frequency would be maintained twice per week until no further complaint from
Greenview Terrace. Detail of the complaint investigation can be referred to
Appendix H.
5.1.5
One environmental complaint from
5.1.6
Cumulative
statistics of environmental complaints are shown in Table
5-1.
|
Complaints Received in the Reporting Period |
Cumulative Number of Complaints |
|
7 |
10 |
Table 5-1 Cumulative Statistic of Environmental Complaints
6 Summary of Notification of Summons; Successful Prosecutions and Corrective Actions
6.1.1
No summons
and successful prosecution was received during the reporting period.
6.1.2 Cumulative statistics of Notification of Summon; Successful Prosecutions and Convictions are shown in Table 6-1.
|
Notification of Summons |
Successful Prosecution |
||
|
July – September 09 |
Cumulative |
July
– September 09 |
Cumulative |
|
0 |
0 |
0 |
0 |
Table 6-1 Cumulative Statistics of notification of summons and successful prosecutions
7 Comments; Recommendations and Conclusion
7.1.1
During the
reporting period, no project related exceedance of air quality was recorded but
six Action Level
exceedances of noise monitoring
were recorded. Exceedances of water
quality monitoring were recorded but none of these exceedances were related to
Project’s construction activities.
7.1.2
Waste
management mitigation measures have been implemented by the Contractor within
the reporting period. Waste figures during
the reporting period are summarized in the below table.
|
Status of Waste Management |
|
|
Inert C&D Material Disposed of to Public Fill at Tuen Mun (m3) |
13,396.5 |
|
Inert C&D Material Reused in other Contract* (m3) |
8,280.0 |
|
Metals Generated (kg) |
Nil |
|
Paper / Cardboard Packaging (kg) |
700.0 |
|
Plastics (kg) |
Nil |
|
Chemical Waste (kg) |
Nil |
|
General Waste Disposed of to NENT Landfill (m3) |
43.9 |
* Other Contracts include Proposed Rural Theme Park-Yuen Long,
7.1.3
During the
reporting period, seven environmental
complaints were received. One environmental complaint
was received by EPD on 10 July 2009 regarding construction dust from the
Outfall Construction Site. The
complaint was considered not justifiable since no action & limit level
exceedance on construction dust were identified. Two environmental complaints were received by SOR on 29 July and 11 August
2009 regarding daytime construction noise exceedances recorded at Greenview
Terrace (NSR9) on 8, 22, 23, 27 and 29 July 2009 and a large amount dust
generated at the outfall construction site. Two other environmental
complaints from Greenview Terrace were received by SOR via Apple Daily on 12
August 2009 and by EPD on 14 August 2009. These complaints also referred to the
daytime construction noise level exceedances and construction dust generated at
the outfall construction site. One environmental complaint
from
7.1.4
No
Notification of Summons has been received since the commencement of the
Project.
7.1.5
There were totally
seven environmental complaints received during the reporting period and the
Contractor was reminded to enhance the on-site noise mitigation measures. All
the noise mitigation measures mentioned in Section 5.1.4 and 5.1.5 were
implemented during the reporting period and no exceedances of Limit levels of
the measured noise levels were recorded .
|
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Organization Chart |
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Work Programme |
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Implementation Status of Environmental Mitigation Measures |
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Monitoring Locations |
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Monitoring Results |
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Interim Notifications of Environmental Quality Limits Exceedances |
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Complaint Log |
