Central
Reclamation, Phase III
Environmental Monitoring
& Audit
Monthly Report No.1 (Final)
August 2003
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Client |
Territory Development Department, Hong Kong |
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Project |
Supplementary Agreement No. 3 to Agreement No. CE 15/94 |
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Report
No. |
3128-REP-148-01 |
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Date of Issue |
18 September 2003 |
File
Ref. L:\S-proj\CR3\CR3.NEW\3128\ |
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Report Title |
Central
Reclamation, Phase III Environmental
Monitoring & Audit Monthly
Report No.1 (Final) - August 2003 |
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Date |
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Prepared
by : |
Albert
Chan, ACL - Environmental Consultant |
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18 Sep 2003 |
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Reviewed by: |
Susana
Bezy, ACL – ET Leader |
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18
Sep 2003 |
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Authorised by : |
Jon
Varndell, ACL – Project Mgr |
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18
Sep 2003 |
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Distribution |
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Copy No |
Issue to |
Attention |
Corr. Ref. |
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1 |
TDD |
Mr
H H Yeung |
3128/124/OC5260/al |
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2 |
EPD |
Mr
Thomas To |
3128/124/OC5260/al |
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3 |
EPD
(LCO) |
Mr
Y K Chan |
3128/124/OC5260/al |
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4 |
Leighton-China
State-Van Oord JV |
Mr
Malcolm Plummer |
3128/124/OC5260/al |
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5 |
CRIII
Sites/PRE |
Mr
Douglas Miller |
3128/124/OC5260/al |
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6 |
Independent
Checker (Environment) |
Mr
Bill Dogulas |
3128/124/OC5260/al |
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7 |
Environmental
Team Leader |
Ms
Susana Bezy |
3128/124/OC5260/al |
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8 |
Office
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List of Annexes
Annex A Project Organisation/ Contact Information
Annex B Locations of Designated Projects
Annex C Contractor’s Work Programme
Annex D Monitoring Stations Locations
Annex E Environmental Quality Performance Limits for Air, Noise and Water Quality
Annex F Event and Action Plan for Air, Noise and Water Quality
Annex G Noise Monitoring Results
Annex H Graphical Representation of Noise Monitoring Results
Annex I Water Quality Monitoring Results
Annex J Graphical Representation of Water Quality Monitoring Results
Annex K Calibration Certificates
List of Tables
Table 1-1 Activities at Central
District Sites in August 2003....................................................... 2
Table 2.1 Summary of the Environmental License / Permit Status.................................................. 4
Table 2.2 - Summary of the Contractor's Environmental Related Document
Submissions to the Engineer’s Representatives (ER)...................................................................................................................................... 5
Table 2.3 Summary of Environmental Certification Sheet Submissions to
the Environmental Protection Department (EPD)............................................................................................................................................ 7
Table 3-1 Summary
of Impact EM&A Requirements................................................................... 11
– Air
Quality Action and Limit Levels for the City Hall Monitoring Sta....................................... 14
Table
4.1 - Water Quality Monitoring Programme (Seawater Intakes Stations)............................ 15
Table
4.2 - Equipment for Air Quality
Monitoring...................................................................... 16
Table
4.3 – Noise Monitoring Equipment................................................................................... 17
Table
4.4 - Equipment Used for Marine Water Quality Monitoring............................................. 18
Table
6.1 - Water Quality Monitoring Programme...................................................................... 23
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ACL |
Atkins China Limited |
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CRIII |
Central Reclamation Phase III |
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EIA |
Environmental Impact Assessment |
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EM&A |
Environmental Monitoring and Audit |
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EP |
Environmental Permit |
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EPD |
Environmental Protection Department |
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ER |
Engineer’s Representatives |
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ET |
Environmental Team |
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LCSD |
Leisure and Cultural Services Department |
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LCSVO-JV |
Leighton China State Van Oord Joint Venture |
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TDD |
Territory Development Department |
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TSP |
Total Suspended Particulates |
Executive
Summary
The Central Reclamation Phase III Works,
Contract No. HK 12/02, was awarded to Leighton China State Van Oord Joint
Venture (LCSVO-JV) by the Territory Development Department (TDD), Hong Kong
Islands and Islands Development Office.
The works under the Contract HK 12/02 commenced on 28 February 2003.
Atkins China Limited (ACL) has been appointed by TDD to implement the
Environmental Monitoring and Audit (EM&A) programme that was identified in
the EIA Report for the CRIII Project and is providing Environmental Team (ET)
services during the duration of the construction works.
This is the first official Monthly
EM&A Report for the works specified in
Section 1.3 of the CRIII EIA Report.
This report summarises the monitoring results and audit findings of the
EM&A programme during the reporting period from 28 July to 31 August 2003.
Environmental Monitoring and Audit Progress
Noise and water quality monitoring was conducted this month.
Breaches of Action and Limit Levels
Summaries of environmental exceedances during
this reporting period are as follows:
|
Env. Quality |
Parameters |
% Compliance |
Investigation & Corrective Actions |
|
Air
Quality A |
1-Hr TSP |
N/A |
N/A |
|
24-Hr TSP |
N/A |
N/A |
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Noise |
Normal construction hours |
100% |
N/A |
|
Restricted hours |
100% |
N/A |
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Water
Quality |
Suspended Solids |
96% |
Exceedances at seawater intakes
may be due to the unexpected silty discharges from adjacent outfalls or
exceptional localized conditions. Project marine works did not cause the
elevated levels of SS. As such, no remedial actions were required. |
|
Turbidity |
100% |
N/A |
|
|
Dissolved Oxygen |
56% |
Investigations into the DO
levels below the water criteria found that they were attributable to local
ambient conditions and not caused by project marine works. As such, no
remedial actions were required. |
Notes: A -
Air quality monitoring did not commence as no construction activities with the
potential to impact air quality are within range of the closest air quality
sensitive receivers.
B
- There are no Action and Limit Levels for turbidity at seawater intake
stations.
Breaches of the Action and Limit Levels were
found for dissolved oxygen (DO) and suspended solids (SS) during the report
month. However, investigations into the
breaches found that they were not due to project works as they were attributed
to natural ambient conditions or localized influencing factors in proximity of
the affected monitoring stations.
Complaint Log
There were no environmental complaints received
during this reporting period for the Project components addressed in the
Project EIA Report.
Notifications of Summons and Prosecutions
There were no notifications of summons or
prosecutions received during this reporting period.
Site Inspection and
Audit
Site inspections
for the CRIII project works area were undertaken on 14, 21 and 28 August
2003. During the site inspections, one
minor non-compliance and two deficiencies were found. The Contractor subsequently mitigated the non-compliance and
deficiencies. Site visits were also
made to the Engineer's site office for meetings with regard to the Contractor’s
Work programme.
Future Key Issues
Future Key Issues are as follows:
·
The Contractor was approved
to dredge up to the maximum hourly dredge rate of 175 m3 per hour at
IRAW on 28 August 2003 (Ref. 3128/M45/400/OC5172/AC/al) after no adverse water
quality impacts were found from the additional monitoring performed during the
increased dredging rate trial conducted between 18 and 23 August 2003. The ET will continue to closely monitor
water quality to ensure the Contractor's compliance with water quality
criteria.
·
Marine piling works are
expected to commence in September 2003 and the splicing of piles is in
progress. As this marine work may have
the potential to affect water quality, the ET will be extra vigilant in noting
any influences that the piling work will have.
·
The placing of Type D Rock
filling is expected to start during the first week of September 2003. Again, water quality will be monitored closely
to ensure compliance with environmental quality criteria.
·
Mr James Shorthose of ACL is
currently acting as the temporary ETL until Ms Susana Bezy's return in late
September 2003.
The Territory Development Department (TDD) of
the Hong Kong Special Administrative Region (HKSAR) is constructing the Central
Reclamation Phase III Project (CRIII).
The Main Works Contract HK 12/02 for CRIII
commenced on 28th February 2003. Leighton-China State-Van Oord Joint Venture
(LCSVO-JV) was awarded the Contract No. HK 12/02 for the construction of the
CRIII Engineering Works. The Contractor
is presently undertaking site investigation works, dredging works at IRAW,
demolition work at Pier No. 7 and preparation for marine piling works near Pier
No. 8.
Atkins China Limited (ACL) has been
commissioned by TDD to undertake the environmental monitoring and audit work
for the project in accordance with the Environmental Permit (EP No.
EP-122/2002) issued to TDD on 7 March 2002.
The CRIII Project Organisation is shown in Annex A.
This is the first
official monthly
EM&A Report, which presents the results of EM&A work conducted during the period from
28 July to 31 August 2003, inclusive.
Leighton China State Van Oord Joint Venture
(LCSVO-JV) was awarded the Contract No. HK 12/02 for the construction of the
CRIII Engineering Works. The Contract
includes the following Designated Projects which are located within the Central
District Area:
·
Central Reclamation Phase
III - Reclamation works (including associated dredging works) of about 18 ha in
size;
·
Roads P1, P2, D6, D7, D8, D9
and D11 - About 1.05km of primary distributor and about 0.85km of district
distributor;
·
Central - Wan Chai Bypass
Tunnel - About 0.95km of Central - Wan Chai Bypass Tunnel; and
·
North Island Line protection
works - About 0.5km of North Island Line protection works.
The locations of the CRIII Project works are
provided in Annex B (Figures 1
through 4).
Atkins China Limited (ACL) has been
commissioned by TDD to undertake environmental management and monitoring work
in accordance with the (EM&A) Manual for the CRIII project. The Project organisation and management
structure with regard to the environmental works is shown in Annex A.
A copy of the Contractor's proposed
construction programme is provided in Annex C. In future reports this programme will be
streamlined to the major works items.
A summary of the activities undertaken within
the Central District in this reporting month is shown in Table 1.1.
|
Site Area |
Description of Activities |
|
Area CR-1 |
·
Site investigation works |
|
Area CR-2 |
·
Demolition works |
|
Area CR-3 |
·
Site investigation works |
|
Area CR-12 |
·
Splicing of marine piles |
|
IRAW |
·
Dredging works |
The works undertaken during the reporting month include the removal of roof slabs at Pier No. 7, dredging at IRAW, splicing of marine piles at CR12, commencement of site investigation for Central Terminal Building, and the commencement of site investigation works for the Man Yiu Street Footbridge.
A summary of the status of all environmental
permits, license, and/or notification to EPD for this project during the
reporting period are presented in Table 2.1.
|
Item |
Item
Description |
Date of
Application |
Permit Status |
|
1 |
LCSVO-JV submitted an Application for Construction Noise Permit for
carrying out of construction works during evening at site area opposite to
Central Barracks (Ref. H2189/U2c/2454/MP/CST/RC/ST/cm) |
18
August 2003 |
Pending |
|
2 |
LCSVO-JV submitted an Application for Construction Noise Permit for
carrying out of construction works during evening and night-time at Victoria
Harbour near Pier No. 7 (Pier No. 8 & Pier West) (Ref.
H2189/U2c/2453/MP/CST/ RC/ST/cm) |
18
August 2003 |
Pending |
|
3 |
LCSVO-JV submitted an Application for Construction Noise Permit for
carrying out of trial pit works during 21:00 to 06:00 of next day at Man Yiu
Street near General Post Office walkway (Ref. H2189/U2c/2312//MP/ATA/ST/cm) |
12
August 2003 |
Pending |
|
4 |
LCSVO-JV submitted an Application for Construction Noise Permit for
Percussive Piling in Victoria Harbour near Pier No. 7, CNP No. PP-TS0032-03
(Ref. H2189/C1/2253/ MP/CST/DS/ST/cm) |
7
August 2003 |
Issued |
|
5 |
LCSVO-JV submitted an Application for Construction Noise Permit for
carrying out of dredging and filling work during night time in Victoria
Harbour near Pier No. 7, CNP No. GW-TS0372-03 |
4
August 2003 |
Issued |
|
6 |
LCSVO-JV submitted an Application for a Permit to Dump Material
(Contaminated Sediment) at Sea Under the Dumping at Sea Ordinance (Permit No.
EP/MD/04-043). |
2
August 2003 |
Issued |
A summary of the status of the submissions
provided during the month of August 2003 is presented in Table 2.2.
|
Item |
Document Title |
Version |
Date of Submission to ER |
|
1. |
Proposal of Dredging Rates - Dredging Rate
Achieved During Trial (Ref. H2189/C1/2616/MP/CST/EY/ST/cm) |
0 |
27
August 2003 |
A summary of the Environmental Certification
Sheet submissions to EPD for the Month of August 2003 is presented in Table
2.3.
|
No |
Certification
Subject |
Letter Ref. |
Date of
Submission to EPD |
Approved
Status |
|
N/A |
N/A |
N/A |
N/A |
N/A |
Notes: N/A -
No environmental certification sheets were submitted to the EPD during this
report month.
During the reporting period the following
environmental meetings were held:
·
25 August 2003 – Resident
Site Staff, the ET, TDD, the Contractor and representatives from Cinotech had a
meeting at the ER's site office to discuss the Contractor's increased dredging
rate trial and results of the additional water quality monitoring programme.
The environmental monitoring locations are
provided in Annex D.
The EM&A programme requires environmental monitoring for air
quality, noise, water quality, waste management and landscape and visual
aspects as specified in the CRIII Project EIA.
The EM&A requirements for each issue area are described in
subsequent sections including:
·
All required monitoring parameters;
·
Action and Limit Levels; and
·
Event-Action Plans.
A summary of impact EM&A requirements is presented in Table
3-1.
|
Descriptions |
Locations |
Frequencies |
Duration |
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TSP |
24-Hour
TSP |
2
Locations |
Once
every 6 days |
During
Construction |
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1-Hour
TSP |
2
Locations |
Three
times in every 6 days |
During
Construction |
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|
Noise |
Leq (30
mins), L10, L90, |
1
Location |
Continuous
measurements |
Two
weeks before Construction and During Construction |
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Water
Quality |
Dissolved
Oxygen; Salinity; Temp; Suspended
Solids; Turbidity. |
14
Locations |
3 times
a week, Mid-ebb/flood tides |
During
Marine Works |
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Waste |
On-Site
Waste Audit |
Active
Work Sites |
Periodically |
During
Construction |
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On-Site
Waste Inspection |
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|
Landscape
and Visual |
Audits
to ensure effective implementation of mitigation measures |
During
Construction |
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|
General
Site Conditions |
Environmental
Site Inspection |
Works
areas and areas affected by works |
Periodically |
During
Construction |
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Environmental Quality Performance Limits for air, noise and water
quality as provided in the Baseline Monitoring Report (Final) are shown in Annex
E.
The Event Action Plans for air, noise and water quality as provided in
the Baseline Monitoring Report (Final) are shown in Annex F.
The Contractor is expected to implement mitigation measures listed in
the EIA Report, EM&A Manual and Environmental Permit.
Regular site inspections were carried out
to assess whether the project's environmental protection and pollution control
measures are in compliance with the contract specifications. Inspections were conducted on 14, 21 and 28
August 2003.
Air quality monitoring has not commenced
yet as no work areas or construction activities with the potential to impact
air quality are within range of the closest air quality sensitive receivers.
Continuous 24-hour noise monitoring commenced on 14 August 2003.
Impact water quality monitoring at all
monitoring stations was undertaken during this reporting month. The water quality monitoring schedule for
August 2003 is presented in Table 4-1.
|
Date of Sampling |
Tidal State |
Timing of Sampling |
|
1 August 2003 |
Mid Ebb |
13:20 - 15:36 |
|
Mid Flood |
07:25 - 09:45 |
|
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4 August 2003 |
Mid Ebb |
15:22 - 18:05 |
|
Mid Flood |
09:10 - 12:18 |
|
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6 August 2003 |
Mid Ebb |
07:38 - 10:30 |
|
Mid Flood |
13:12 - 15:50 |
|
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8 August 2003 |
Mid Ebb |
08:37 - 11:11 |
|
Mid Flood |
15:45 - 18:10 |
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11 August 2003 |
Mid Ebb |
10:45 - 14:05 |
|
Mid Flood |
16:02 - 19:05 |
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13 August 2003 |
Mid Ebb |
13:01 - 15:42 |
|
Mid Flood |
07:45 - 10:43 |
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15 August 2003 |
Mid Ebb |
13:25 - 16:10 |
|
Mid Flood |
07:45 - 10:44 |
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18 August 2003 |
Mid Ebb |
14:40 - 17:25 |
|
Mid Flood |
08:44 - 11:24 |
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20 August 2003 |
Mid Ebb |
15:38 - 18:44 |
|
Mid Flood |
10:52 - 14:00 |
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22 August 2003 |
Mid Ebb |
07:35 - 10:53 |
|
Mid Flood |
15:18 - 18:28 |
|
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25 August 2003 |
Mid Ebb |
Cancelled A |
|
Mid Flood |
Cancelled A |
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27 August 2003 |
Mid Ebb |
10:52 - 13:52 |
|
Mid Flood |
15:58 - 18:39 |
|
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29 August 2003 |
Mid Ebb |
12:53 - 15:22 |
|
Mid Flood |
07:36 - 10:33 |
Notes: A -
Monitoring was cancelled due to adverse weather conditions (typhoon).
Air quality Monitoring will be performed in
accordance with the methodology described in the EM&A Manual once
construction activities requiring air quality monitoring commence. The locations of the monitoring stations at
City Hall and PLA Headquarters are shown in Annex E.
Continuous 24-hour noise monitoring was performed
in accordance with the methodology described in the EM&A Manual in August
2003. The location of the noise monitoring station at City Hall is shown in Annex
D.
Water quality monitoring was performed in
accordance with the methodology described in the EM&A Manual. Monitoring for the month of August was
conducted at all stations, which comprises of 4 marine-based stations, 8
seawater intake stations and 2 control stations. The locations of the monitoring stations are shown in Annex
D.
The equipment that will be
used for air quality monitoring is listed in Table 4-2.
|
Parameter Measured |
Equipment |
|
24-Hour Sampling |
High Volume Sampler Model
GS2310 by Anderson Instruments to be used for both monitoring stations. |
|
1-Hour Sampling |
MicroDust pro Aerosol
Monitoring System to be used for both monitoring locations. |
The equipment used for
continuous noise quality monitoring is listed in Table 4-3.
|
Equipment |
Model |
|
Integrated Sound Level Meter |
B&K 2238 |
|
Calibrator |
B&K 4231, Class 1 |
The equipment that will be
used for water quality monitoring is listed in Table 4-4.
|
Parameter Measured |
Equipment |
|
Dissolved Oxygen and Temperature Measuring Equipment |
A Dissolved Oxygen meter YSI model 58 was used. ·
This
instrument was portable and weatherproof and used a DC power source. The equipment was capable of measuring: ·
DO levels
in the range of 0-20 mg/l and 0-200% saturation; and ·
temperature
of between 0-45 degree Celsius. ·
The
equipment had a membrane electrode with an automatic temperature compensation
complete with a cable. In addition, a Wirling Psychrometer was used as a
reference thermometer during the sampling. |
|
Turbidity Measurement Instrument |
|
|
pH |
A MP125 pH Meter from Mettler Toledo was used to measure pH. |
|
Salinity / Conductivity Meter |
A Salinity / Conductivity meter YSI model 63 and model 30 was used for determining salinity concentrations. |
|
Sample Containers and Storage |
Water samples for SS analysis were stored in high density polythene bottles with no preservative added, packed in ice and delivered to the laboratory, and analysed as soon as possible after collection. |
No air quality monitoring work was undertaken
during the reporting period as no
work areas or construction activities with the potential to impact air quality
are within range of the closest air quality sensitive receivers.
Noise quality monitoring work was undertaken
during the reporting period. The noise
monitoring results are provided in Annex G. Graphical representation of the noise
monitoring data is provided in Annex H.
It should be noted that the sound level meter
used for monitoring experienced an error between 15 and 20 August 2003 leading
to unusually low measurement levels.
The equipment was rectified on the morning of 21 August 2003 and should
not pose similar problems in the future.
Water quality monitoring was undertaken at
all water quality monitoring locations during the reporting period. The water quality monitoring results from 28
July to 31 August 2003 are presented in Annex F. Graphical representation of the water quality data is provided in
Annex
G.
No waste management audit was scheduled
within this reporting period. The
arrangement of waste management audit will be detailed in the Waste Management
Plan.
As the works undertaken during the reporting
month were related to site investigation works, minor demolition works and
dredging works, the landscape and visual impacts are considered to be minimal.
The monitoring results for this reporting
period, as provided in Section 4 of this report, show a number of exceedances
with respect to water quality. The
total number of exceedances for air, noise and water quality are presented in
following sections.
No exceedances of air quality were observed
as no air quality monitoring work was undertaken during the reporting period.
No exceedances of noise quality were observed
during the reporting period.
The water quality monitoring conducted during
the period showed that DO levels ranged between 2.6 and 10.0 mg/L. DO concentrations of less than 4.7 and 4.6
mg/L were commonly recorded during the period, which is consistent with EPD
routine water quality monitoring results measured during a similar period in
recent years. As such, breaches of the
DO Action Level were due to local ambient conditions and not caused by project
marine works. On 26 August 2003, a
breach of the DO Limit Level was recorded at seawater intake station M4. Again, an investigation into the low DO
level found that it was attributed to local ambient conditions. Since these breaches were not due to the
Contractor's marine works, no remedial actions were required. It should also be noted that a number of
outfalls and stormwater culverts that discharge directly into the harbour are
located along the seawall within the project works area. These outfalls have the potential to
adversely impact water quality in the area.
Elevated concentrations of SS above the Limit
Level were recorded on 28 July 2003 and 8, 11 and 22 August 2003 at seawater
intake stations. It was found that the
elevated SS level on 28 July was not caused by dredging operations, as the
Contractor did not commence dredging works until 29 July 2003. The higher than expected SS level in this
case may be due to discharge influences from outfalls located in proximity of
the affected monitoring stations.
Investigations into the other elevated SS levels also found that they
were not due to marine works. All of
the high SS concentrations recorded were shown to be localized conditions as no
sediment plumes were detected at marine based stations and no unusual
concentrations were measured at adjacent monitoring stations during the same
time. Additionally, these high SS
levels were often recorded at locations with outfalls and stormwater culverts
that discharge into the harbour. No
remedial actions were required for the above breaches, as the Contractor's
marine works did not cause them.
However, the ET will be extra vigilant in recording field observations
in order to identify potential influencing factors for water quality in the
future.
No non-compliances with regard to waste
management were recorded in the reporting month.
No non-compliance with regard to landscape
and visual aspects were recorded in the reporting month.
An environmental non-compliance was observed
during a site inspection conducted on 14 August 2003. Stagnant water was found on the floor surface at the chemical
storage area at CR-14 and construction material in front of the storage area
also prevented clear access to the site.
The Contractor agreed to clean up the storage area during the site
inspection on 14 August and the non-compliance was confirmed to be duly rectified
on 18 August 2003.
Two deficiencies were noted during an
environmental site inspection on 28 August 2003. The first deficiency concerned a portion of the dust screen
enclosing Pier No. 7 that was damaged/ unfastened during bad weather between 24
and 25 August 2003. The damaged section
no longer provided the minimum height of 1 m above the top level of the
structure to be demolished. As for the
second deficiency, it was with respect to a small amount of grease found in a
drip tray holding several chemical containers at Pier No. 7. The Contractor rectified both deficiencies
and compliance was confirmed during a subsequent site inspection.
No environmental complaints were
received during the reporting period.
Further, no prosecution notices or summons were received during the
reporting period.
The key issues to be considered in the coming
month include the following:
·
Marine piling works are to
commence in early to mid September. The
ET will continue to closely monitor water quality monitoring results to ensure
that these works are not affecting water quality;
·
The Contractor is expected
to dredge up to the accepted maximum hourly dredge rate of 175 m3 per hour for
the remaining dredging works at IRAW.
Again, the ET will continue to closely monitor water quality to ensure
the Contractor's compliance with environmental performance criteria;
·
The demolition of Pier No. 7
is progressing ahead of schedule and the ET will ensure proper dust suppression
measures are maintained during the regular environmental site audits.
The construction works scheduled in September
2003 include dredging at IRAW, demolition of Pier No. 7 and existing seawall at
IRAW and site investigation works.
Based on the Contractor’s programme, the Environmental Monitoring
Programme for the next three months is planned as follows:
TSP (24 hr and 1 hr monitoring)
Upon commencement of dust generating activities
within range of the closest air quality sensitive receiver, dependent upon the
Contractor’s programme.
Noise (Continuous Measurements)
The noise monitoring programme throughout the
entire construction period is 24-hour continuous.
Water Quality Monitoring
The water quality monitoring schedule for the next
3 months is provided in the following table.
|
Date of Sampling |
Sampling Time |
|
|
1 September 2003 |
09:23 |
15:35 |
|
3 September 2003 |
11:52 |
17:00 |
|
5 September 2003 |
08:30 |
17:00 |
|
8 September 2003 |
10:49 |
17:00 |
|
10 September 2003 |
12:00 |
17:00 |
|
12 September 2003 |
08:30 |
13:21 |
|
15 September 2003 |
08:56 |
14:53 |
|
17 September 2003 |
10:35 |
15:46 |
|
19 September 2003 |
08:30 |
17:00 |
|
22 September 2003 |
09:31 |
17:00 |
|
24 September 2003 |
11:01 |
17:00 |
|
26 September 2003 |
12:00 |
17:00 |
|
29 September 2003 |
08:30 |
14:31 |
|
1 October 2003 |
10:37 |
16:11 |
|
3 October 2003 |
08:30 |
17:00 |
|
6 October 2003 |
09:40 |
17:00 |
|
8 October 2003 |
11:09 |
17:00 |
|
10 October 2003 |
12:00 |
17:30 |
|
13 October 2003 |
08:30 |
14:00 |
|
15 October 2003 |
08:30 |
14:37 |
|
17 October 2003 |
08:00 |
15:55 |
|
20 October 2003 |
08:30 |
17:00 |
|
22 October 2003 |
09:38 |
16:44 |
|
24 October 2003 |
11:16 |
17:00 |
|
27 October 2003 |
08:00 |
13:30 |
|
29 October 2003 |
09:34 |
15:01 |
|
31 October 2003 |
08:00 |
16:53 |
|
3 November 2003 |
08:30 |
15:48 |
|
5 November 2003 |
09:56 |
16:40 |
|
7 November 2003 |
11:17 |
17:00 |
|
10 November 2003 |
12:00 |
17:30 |
|
12 November 2003 |
08:30 |
14:00 |
|
14 November 2003 |
09:30 |
14:53 |
|
17 November 2003 |
08:30 |
17:00 |
|
19 November 2003 |
08:30 |
15:18 |
|
21 November 2003 |
09:58 |
16:14 |
|
24 November 2003 |
12:00 |
17:30 |
|
26 November 2003 |
08:30 |
14:00 |
|
28 November 2003 |
09:30 |
15:18 |
The construction programme for the next 3
months is provided in Annex C and will be updated by the
Contractor.
The ET will follow the Contractor’s proposed
programme to ensure the compliance of environmental performance and proper
implementation of all necessary mitigation measures.
Dredging works is
progressing at IRAW. DO levels below
4.7 and 4.6 mg/L were recorded on a number of occasions during the reporting
period. It was found that these levels
were attributable to local ambient conditions and not caused by project marine
works. Further, EPD's routine water
quality monitoring data collected in recent years for Victoria Harbour show
that these range of DO concentrations are expected around this time of year.
Elevated levels of SS above
water quality criteria were also recorded during this reporting period. These higher than usual levels were
investigated and were found to be attributable to exceptional localized conditions
and not caused by project marine works.
Discharges from outfalls and stormwater culverts located near the
seawater intake stations are major influencing factors that adversely impact
water quality.
One non-compliance and two
deficiencies were observed during reporting period. The Contractor subsequently rectified the non-compliance and the
two deficiencies after being notified.