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Contract
No: HK/2011/07 Wanchai Development Phase II and Sampling, Field Measurement and
Testing Work (Stage 2) Environmental
Permit no. EP-356/2009, Further
Evironmental permit nos. fep-02/356/2009, FEP-03/356/2009, Fep-04/356/2009,
fep-05/356/2009 and Fep-06/356/2009 Quarterly Environmental Monitoring
and Audit Report
- March 2013 to May 2013 -
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CLIENTS: |
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Civil
Engineering and Development Department and Highways
Department |
Lam Geotechnics
Limited 11/F Centre
Point Wanchai, H.K. Telephone: (852) 2882-3939 Facsimile: (852) 2882-3331 E-mail: info@lamenviro.com Website: http://www.lamenviro.com |
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CHECKED by: |
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Raymond Dai Environmental Team Leader |
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DATE: |
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June 2013 |
2.2 Scope of the Project and Site Description
2.3 Division
of the Project Responsibility
2.4 Project
Organization and Contact Personnel
2.5 Principal Work and Activities
4.2. Real Time Noise
Monitoring Results
5.2. Real-time Noise Monitoring
5.6. Review of the Reasons for and the Implications of
Non-compliance
5.7. Summary of action taken in the event of and follow-up on
non-compliance
6. Complaints,
Notification of Summons and Prosecution
7. Cumulative
Construction Impact due to the Concurrent Projects
lIST
OF TABLES
Table I Principal Work
Activities for Contract no. HK/2009/01
Table II Principal Work
Activities for Contract no. HK/2009/02
Table III Principal Work
Activities for Contract no. HY/2009/15
Table IV Principal Work Activities for Contract no. HK/2010/06
Table V Principal Work
Activities for Contract no. HY/2009/19
Table VI Principal Work Activities for Contract no. HK/2012/08
Table 2.1 Schedule 2 Designated
Projects under this Project
Table 2.2 Details of Individual
Contracts under the Project
Table 2.3 Contact Details of
Key Personnel
Table 2.4 Principal Work Activities for Contract no. HK/2009/01
Table 2.5 Principal Work Activities for Contract no. HK/2009/02
Table 2.6 Principal Work
Activities for Contract no. HY/2009/15
Table 2.7 Principal Work
Activities for Contract no. HK/2010/06
Table 2.8 Principal Work
Activities for Contract no. HY/2009/19
Table 2.9I Principal Work Activities for Contract no. HK/2012/08
Table 3.1 Noise Monitoring
Stations
Table 3.2 Real Time Noise
Monitoring Station
Table 3.3 Air Monitoring
Stations
Table 3.4 Marine Water Quality
Stations for Water Quality Monitoring
Table 3.5 Marine Water Quality
Monitoring Frequency and Parameters
Table
3.6 Marine Water Quality Stations for Enhanced Water
Quality Monitoring
Table
3.7 Marine Water Quality Stations for Additional DO
Monitoring
Table 4.1 Noise Monitoring Station for Contract nos. HK/2009/01
and HK/2009/02 and HK/2010/06
Table 4.2 Noise Monitoring
Station for Contract nos. HY/2009/15
Table 4.3 Noise Monitoring Stations for Contract no. HY/2009/19
Table 4.4 Real Time Noise
Monitoring Station for Contract no. HY/2009/11 and HY/2009/19
Table 4.6 Air Monitoring Stations for Contract no. HK/2009/01
Table 4.7 Air Monitoring Station for Contract no. HK/2009/02
Table 4.8 Air Monitoring Station
for Contract no. HY/2009/15
Table 4.9 Air Monitoring Stations for Contract no. HY/2009/19
Table 4.10 Water Monitoring
Stations for Contract no. HY/2009/11
Table 4.11 Water Monitoring Stations for Contract no. HK/2009/01
Table 4.12 Water Monitoring Stations for Contract no. HK/2009/02
Table 4.13 Water Monitoring Stations for Contract no. HK/2010/06
Table 4.14 Water Monitoring
Stations for Contract no. HY/2009/15
Table 4.15 Water Monitoring Stations for
Contract no. HY/2009/19
Table 4.15a Summary of
Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting period
Table 4.16 Summary of Water Quality Monitoring Exceedances in Reporting
period
Table 4.17 Details of Waste Disposal for Contract no. HK/2009/02
Table 4.18 Details of Waste Disposal for Contract no. HK/2009/01
Table 4.19 Details of Waste Disposal for Contract no. HK/2009/02
Table 4.20 Details of Waste Disposal for Contract no. HY/2009/15
Table 5.1 Summary of Water
Quality Monitoring Exceedances in Reporting period
Table 5.1a Summary of Enhanced
Dissolved Oxygen Monitoring Exceedances in Reporting period
Table 6.1 Cumulative Statistics
on Complaints
Table 6.2 Cumulative Statistics
on Successful Prosecutions
lIST OF FIGUREs
Figure
2.1 Project Layout
Figure
2.2 Project Organization Chart
Figure 3.1 Locations of Environmental
Monitoring Stations
lIST OF APPENDIces
Appendix
2.1 Environmental Mitigation
Implementation Schedule
Appendix 3.1 Action and Limit Level
Appendix
4.1 Noise Monitoring
Graphical Presentations
Appendix
4.2 Air Quality Monitoring
Graphical Presentations
Appendix
4.3 Water Quality Monitoring
Graphical Presentations
Appenidx 4.3a Additional Dissolved Oxygen
Monitoring Results
Appendix 4.4 Real-time Noise Monitoring Results and Graphical Presentations
Appendix 5.1 Event Action Plans
Appendix 6.1 Complaint Log
Appendix 7.1 Construction Programme of
Individual Contracts
Construction Activities for the
Reported Period
Table I Principal Work Activities for Contract
no. HK/2009/01
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March 2013 |
April 2013 |
May 2013 |
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Marine Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Installation
of sheet pile wall for temporary open channel between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ
Installation of ELS for construction of
proposed box culvert Bay 8 and Bay 9. Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Ÿ Rockfilling
and rock protection to cross-harbour watermains. Ÿ Final
inspection for the CHWM (TST section) by WSD. Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline. Ÿ CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF). Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1A, B6-3, B6-4, B6-5B, A2-3A, A3-2B, A3-3C, C1-2 and X2-1. Ÿ Reinstatement
works in combined Zone A1-2A & A1-3A. Ÿ Mainlaying
works in Zone A2-3A and A3-2B. Ÿ Mainlaying
works at Zone A3-3C . Ÿ Mainlaying
works at Zone C1-2. Ÿ Reinstatement
works in Zone B6-5 and subsequent mainlaying works in Zone B6-4 and B6-5B. Ÿ Mainlaying
works in Zone B6-1A and Zone B6-3 (previously named B1-5A). Ÿ Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling
watermains. Ÿ Pressure
test for cross harbour watermains (whole length of land pipes in Wan Chai). Ÿ HEC and
PCCW cabling works in Zone A1-1 which connected to the proposed transformer
rectifier at new reclaimed area. Ÿ Mainlaying
works in Zone X2-1 of Tunnel Works Ÿ Pre-drilling
works for CWB (Stage 2). Ÿ Diaphragm
wall construction works at Stage 2 (North). Ÿ 1st Piling
rig for pre-bored H piling works under atrium was mobilized to Site. E & M Ÿ Full
commissioning test for Cooling Water Pumping Station P3 & P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Ÿ FSD
inspection for Cooling Water Pumping Stations P3 & P4. Ÿ
FSD inspection for Cooling Water Pumping
Station P5. |
Marine Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Installation
of shoring for temporary open channel between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ Installation
of ELS for construction of proposed box culvert Bay 8 and Bay 9. Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Ÿ Grade 75
Rockfilling and rock protection to cross-harbour watermains. Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline at
Ÿ CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF) . Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline at
Ÿ Installation
of interim connecting pipe between land main and submarine pipeline at Zone
B1-5A. Ÿ Ÿ Pre-handover
and final handover by WSD . Ÿ
HEC and PCCW cabling works in Zone A1-1 which
connected to the proposed transformer rectifier at new reclaimed area. Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1B, B6-2A, B6-4, B6-5B, A2-3A, A1-5C, A3-3C, C1-2 and X2-1. Ÿ Washout
pit construction in Zone A2-3A and A3-2B and Reinstatement works in Zone
A3-2B. Ÿ TTA at
Zone A1-5C at Ÿ Mainlaying
works at Zone C1-2 and X2-1. Ÿ Mainlaying
works in Zone B6-4 and B6-5B. Ÿ Mainlaying
works in Zone B6-1B and B6-2A. Ÿ Connection
works for 2nd Intake pipe of Convention Plaza (CP). Ÿ Trench excavation
in Zone X2-1 of Tunnel Works Ÿ Pre-drilling
works for CWB (Stage 2). Ÿ Diaphragm
wall construction works at Stage 2 (North). The remaining Diaphragm wall
would be carried out after mobilization of Trench Cutter on site. Ÿ Temporary
bulkhead wall construction works between Stage1 / Stage2. Ÿ Trench
cutter was mobilized to Site. Ÿ Pre-bored
H piling works for CWB (Stage1b). Ÿ 2nd Piling
rig for pre-bored H piling works under atrium was mobilized to Site. E & M Ÿ Full commissioning
test for Cooling Water Pumping Station P3. Ÿ Handover
inspection for Cooling Water Pumping Station P1. Ÿ Handover
inspection for Cooling Water Pumping Station P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Application of Epoxy Lining to Existing Box
Culvert M (VO No.31) Ÿ Epoxy
lining application to the eastern box of the existing Box Culvert M. Ÿ
Epoxy lining application to the western box
of the existing Box Culvert M. |
Marine Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ Installation
of ELS for construction of proposed box culvert Bay 8 and Bay 9. Ÿ Prefabrication
of steel bridge on the top of temporary open channel along Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Ÿ Defect
rectification works for submarine pipeline A and pipeline B (removal of
silt). Ÿ All
recorded defects inspected by WSD during final handover inspection. Ÿ Installation
of ICCP monitoring system for new provided cross harbour watermain. Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1B, B6-2A, B6-4, B6-5B, A1-5C, A3-3C, C1-2 and X2-1. Ÿ Reinstatement
works at Zone A2-3A. Ÿ Mainlaying
works in Zone B6-1B, B6-2A, B6-4 and B6-5B at north & west of HKCEC. Ÿ Mainlaying
works in Zone A1-5C. Ÿ Temporary
ducting and cabling works at junction between E & M Ÿ Full
commissioning test for Cooling Water Pumping Station P3. Ÿ Handover
inspection for Cooling Water Pumping Station P1. Ÿ Handover
inspection for Cooling Water Pumping Station P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Application of Epoxy Lining to Existing Box
Culvert M (VO No.31) Ÿ Full
commissioning test for Cooling Water Pumping Station P5. |
Table II Principal Work Activities for Contract no.
HK/2009/02
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March 2013 |
April 2013 |
May 2013 |
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Ÿ Modification work of PTI at Ÿ Modification of existing covered walkway along Ÿ Pressure tests for both intake main of GE/HC and SHK in the whole WCR1
area. Ÿ Pressure tests within northern part of WCR1 for both intake main of
CRB and discharge main of SHK. Ÿ Owing to the substantial settlement in the thrust blocks embedding the
completed intake pipelines near to their corresponding P7 & P8 Cooling
Water Pumping Station recorded, the flexible joints connecting with the
structure had been detached and the subsided pipeline would be
re-installed. Site investigation was
being carried out. Ÿ The defeated cable joint box near the proposed combined access chamber
had been rectified. Ÿ Major E&M works and their T&C in Cooling Water Pumping
Stations P7, P8 and P9. Ÿ Footpath reinstatement for the trenches near Harbour Centre. Ÿ Dry tests at WSD Salt Water Pumping Station. Wet test after completion of the proposed
intake culvert. Ÿ Drilling hole and installation of pipe bracket for aeration and
chlorination pipe inside salt water intake culvert between Bay 8 and Bay 11. Ÿ Installation of stoplog at Bay Ÿ Diver work at Bay 1B of the proposed intake culvert followed by
concrete plug. Ÿ The stability check to the proposed sheet pile removal works at Bay
2B. Ÿ Mainlaying works for DN800 salt watermains (CHS Ÿ The ABWF works in WSD Salt Water Pumping Station, including
maintenance platform and external finishes. Ÿ The second T&C Ÿ The trial period for the Outfall B. Ÿ Switching over works for sewage to WCE PTW. Ÿ Backfilling for the receiving pit adjacent to WCE PTW at Ÿ Saw cutting D-wall for 1050 dia. concrete pipe installation between
Bay 1 and the existing drainage. The
associated platform for pipe laying and manhole MH1 construction. Ÿ Proposed precast caisson seawall 2X ; infilling works. Ÿ Concreting of top-slab for PT2 & PT3 at Level 1 (+4.15mPD). Ÿ Concreting of eastern concrete staircase (ST1) from Level 1 to Observation
Deck Level. Ÿ Construction of Ÿ Concreting of base slab with stem wall for PT4 & PT5 at Level 1
(under +4.15mPD). Ÿ Installation of concrete block and plastering works wall for Stair-03
(2nos.) on Level 1 to Observation Deck Level. Ÿ ABWF including brickworks and E&M cable tray at 1/F, 2/F and M/F. Ÿ Planter wall and parapet wall construction on the Observation Deck. Ÿ Installation of winch & pulley system of proposed moveable ramp. Formwork erection for the late cast roof
slab. Ÿ Eastern Bulkhead Wall, Panel BHP5 and BHP8 were concreted. Excavation
for Panel BHP1 and BHP6. Ÿ Dredging works at TWCR4 after passing the 1-month T&C period of
the completed sewage outfall. |
Ÿ Modification work of PTI at Ÿ Modification of existing covered walkway along Ÿ Pressure tests for both intake main of GE/HC and SHK in the whole WCR1
area. Ÿ Remedial works for P7, P8. Mini pile foundation to support the
rectified pipeworks. Ÿ Major E&M works and their T&C in Cooling Water Pumping
Stations P7, P8 and P9. Ÿ Footpath reinstatement for the trenches near Harbour Centre. Ÿ Dry tests at WSD Salt Water Pumping Station. Wet test after completion of the proposed
intake culvert. Ÿ Drilling hole and installation of pipe bracket for aeration and
chlorination pipe inside salt water intake culvert between Bay 4 and Bay 11 (except
Bay 7) . Ÿ Installation of stoplog at Bay Ÿ Remedial works for concrete plug at Bay 1B. Ÿ Mainlaying works for DN800 salt watermains (CHS Ÿ Backfilling works of Bay19B at the junction between Ÿ The ABWF works in WSD Salt Water Pumping Station, including
maintenance platform and external finishes. Ÿ The whole sewage outfall system under Section VI was handed over to
DSD. Ÿ Backfilling for the receiving pit adjacent to WCE PTW at Ÿ Re-construction for the DSD Pumping Station boundary wall at Ÿ The manhole for 1050 dia. concrete pipe between Bay 1 and the existing
drainage. Ÿ Installation of concrete block and plastering works wall for toilet
over PT2 & PT3 at Level 1 (+4.15mPD). Ÿ Concreting of base slab and stem wall for PT4 & PT5 at Level 1
(+4.15mPD) and top-slab. Ÿ Installation of Steel frame on Observation Deck. Ÿ Formwork erection for the late cast roof slab. Ÿ Concreting of western concrete staircase to Level 2; and its construction
to Observation Deck Level. Ÿ Concreting of base slab and stem wall for PT1 at Level 1 (+4.15mPD). Ÿ Concreting of Ÿ Installation of bracket and railing for the proposed movable ramp
system. Ÿ Planter wall and parapet wall construction at Level 2 and Observation
Deck. Ÿ ABWF including brickworks and E&M cable tray at 1/F, 2/F and M/F. Ÿ Dredging of TWCR4 dredging works. |
Ÿ Modification
work of PTI at Ÿ Modification
of existing covered walkway along Ÿ Blinding
layer at CP4 in front of P7 Cooling Water Pumping Station. Ÿ Demolition
of thrust block for rectifying the P9 cooling watermains and the defeated
pipe had been replaced. Ÿ Major
E&M works and their T&C in Cooling Water Pumping Stations P7, P8 and
P9. Ÿ Footpath
reinstatement near Harbour Centre. Ÿ Utility
diversion for the outstanding DAV Chamber for P9 intake mains at Ÿ Both jacking
pit (at Bay 11) and receiving pit (at Bay 19B) for the construction of Intake
Culvert. Ÿ Backfilling
works for the Intake Culvert at Ÿ Backfilling
between Bay 6 to Bay 8. Ÿ Mainlaying
works for DN800 salt watermains (CHS8A) at Ÿ Backfilling
work at CH175 - CH195. Construction of bend block between CH150 – CH160 and
backfilling works near Gate No.1. Ÿ The ABWF
works in WSD Salt Water Pumping Station, including maintenance platform and
external finishes. Ÿ Dry tests
at WSD Salt Water Pumping Station. Ÿ Backfilling
for the receiving pit adjacent to WCE PTW at Ÿ Re-construction
for the DSD Pumping Station boundary wall at Ÿ Re-construction
for the DSD Pumping Station footpath next to the boundary wall. Ÿ Backfilling works between Bay 1 and the existing drainage. Ÿ Bracket & guard rail installation together with temporary
scaffolding erection for proposed movable ramp installation. Ÿ The last cast roof slab was concreted and the temporary falsework had
been dismantled. Ÿ Backfilling works for pipe trenches and the road modification works along
Ÿ Dredging at TWCR4 and WCR4. Ÿ Rockfilling by Grade 200 at TWCR4. |
Table III
Principal Work Activities for
Contract no. HY/2009/15
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March 2013 |
April 2013 |
May 2013 |
|
Ÿ Removal of
eastern breakwater of CBTS |
Ÿ Removal of
eastern breakwater of CBTS Ÿ Installation
of temporary wave protection barrier at eastern breakwater |
Ÿ Removal of
eastern breakwater of CBTS Ÿ Installation
of temporary wave protection barrier at eastern breakwater Ÿ Temporary
works for EVA |
Table IV Principal
Work Activities for Contract no. HK/2010/06
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March 2013 |
April 2013 |
May 2013 |
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Ÿ Pile
Casing Cutting Ÿ Sheet
Piling Works Ÿ Utility
Diversion Works Ÿ
Precast Unit Box Construction (mainland |
Ÿ Sheet
Piling Works Ÿ Utility
Diversion Works Ÿ Road
surfacing preparatory works Ÿ Precast
Unit Box Installation Preparation Works (mainland |
Ÿ Sheet
Piling Works Ÿ Road
resurfacing works Ÿ Road
opening preparatory works Ÿ Precast
Unit Box Installation Preparation Works (mainland |
Table V Principal Work Activities for Contract no.
HY/2009/19
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March 2013 |
April 2013 |
May 2013 |
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Ÿ D-wall Construction
(North & South Section) Ÿ Guide wall
construction for D-wall / Barrette at North side Ÿ Construction
works for Box Culvert T1 Ÿ Marine
Piling Ÿ Construct
ion of socket-H pile Ÿ Construction
works for Culvert U1 Ÿ Construction
of Pile caps & columns (Land) Ÿ Dismantling
of marine platform Ÿ Demolition
of parapet at IEC Link Ÿ Construction
of Pile caps & columns (Marine) Ÿ Construction
of dewatering well for Cut & Cover Tunnel Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel |
Ÿ Bored
piling (Land) Ÿ D-wall and
Barrette Construction Ÿ Construction
works for Box Culvert T1 Ÿ Construct
ion of socket-H pile Ÿ Construction
works for Culvert U1 Ÿ Dismantling
of marine platform Ÿ Demolition
of parapet at IEC Link Ÿ Construction
of Pile caps & columns (Marine) Ÿ Construction
of dewatering well for Cut & Cover Tunnel Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel Ÿ Laying of
1500f pipe |
Ÿ D-wall and
Barrette Construction Ÿ Construction
works for Box Culvert T1 Ÿ Construction
works for Culvert U1 Ÿ Removal of
marine platform Ÿ Construction
of pile cap, column & cross head (Marine) Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel Ÿ Laying of
1500f pipe Ÿ Portal
gantry works Ÿ Launching
of girder Ÿ Launching
of segments Ÿ Unloading
segments from derrick Ÿ
Extraction of temporary pile from marine
section |
Table VI Principal
Work Activities for Contract no. HK/2012/08
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March 2013 |
April 2013 |
May 2013 |
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Ÿ Site
preparation works Ÿ Site
survey |
Ÿ Site
preparation works Ÿ Site survey |
Ÿ Site
survey Ÿ Marine
ground investigation |
Noise Monitoring
M3a: from 11 April 2013 to 12 April 2013 and from
16 May 2013 to 18 May 2013
M4b: from 11 April 2013 to 12 April 2013 and from
16 May 2013 to 18 May 2013
M5b: from 2 April 2013 to 3 April 2013 and from 11
April 2013 and 12 April 2013 and from 16 May 2013 to 18 May 2013
M6: from 2
April 2013 to 3 April 2013 and from 11pril 2013 and 12 April 2013 and from 30
Apr 2013 to 2 May 2013 and from 16 May 2013 to 18 May 2013
Real-time Noise Monitoring
Air Quality Monitoring
CMA1b: from 19 Apr 2013 to 20 Apr 2013
CMA2a: from 4 Mar 2013 to 5 Mar 2013
CMA3a: from 8 Apr 2013 to 9 Apr 2013, from 25 Apr 2013 to
26 Apr 2013 and from 1 May 2013 to 2 May 2013
CMA4a: from 18 May 2013 to 20 May 2013
Water Quality Monitoring
Complaints, Notifications of
Summons and Successful Prosecutions
9.0.1. One
environmental complaint was received on 6 March 2013.
9.0.2. A
water quality complaint was received by ET on 8 March 2013 (ICC Ref. No: 1-407481502
dated 8 March 2013, forwarded by RSS). The complainant reported that dropping
of fine rock material into surrounding waterbody was observed during rock
breaking operation..
9.0.3. ET
confirmed with RSS that excavation works, installation of buoy, flashing light
and silt curtain and dredging works were undertaken at Eastern Breakwater
during the concerned period on 6 March 2013.
9.0.4. Reviewing
the photo record provided by RSS, the condition of the silt curtain deployed
around the Eastern Breakwater on 6 March 2013 was found to be in good
condition. It is considered that the silt curtain was properly in place during
the concerned period and the concerned act of dropping of fine rock material
was confined within the silt curtain boundary without adverse impact to the
nearby water quality. Further follow up was conducted on 12 March 2013 during
weekly environmental audit inspection, the silt curtain deployed around the
concerned area was found to be maintained in good condition and the water
quality at the concerned work area was generally satisfactory.
9.0.5. The contractor
was advised and committed to implement preventive meaures to miminize the
potential impact of work including conducting regular diver check to ensure the
integrity and the extend of silt curtain deployment and to provide adequtae
back up stock of silt curtain for emergency use. The details of cumulative
complaint log and updated summary of complaints are presented in Appendix
9.1.
1.1.1.
Lam
Geotechnics Limited (LGL) has been appointed to work as the Environmental Team
(ET) under Environmental Permit no. EP-356/2009 and Further Environmental
permit nos. FEP-02/356/2009,
FEP-03/356/2009,
FEP-04/356/2009, FEP-05/356/2009 and
FEP-06/356/2009 to implement the Environmental Monitoring and
Audit (EM&A) programme as stipulated in the EM&A Manual of the approved
Environmental Impact Assessment (EIA) Report for Wan Chai Development phase II
and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) and in the EM&A
Manual of the approved EIA Report for Central-Wan Chai Bypass and Island
Eastern Corridor Link (Register No. AEIAR-014/2001).
1.1.2.
This
report presents the environmental monitoring and auditing work carried out in
accordance to the Section 10.4 of EM&A Manual and “Environmental
Monitoring and Audit Requirements” under Particular
Specification Section 27.
1.1.3.
This report documents the finding of EM&A works
during the period from March 2013 to May 2013
Section 1 Introduction – details the scope and structure of the
report.
Section 2 Project Background – summarizes background and scope of the
project, site description, project organization and contact details of key
personnel during the reporting period.
Section 3 Monitoring Requirements – summarizes all monitoring parameters,
monitoring locations, monitoring frequency, duration and action plan.
Section 4 Monitoring Results – summarizes the monitoring results obtained
in the reporting period.
Section 5 Compliance Audit – summarizes the auditing of monitoring results, all
exceedances environmental parameters.
Section 6 Complaints,
Notification of summons and Prosecution – summarizes the cumulative
statistics on complaints, notification of summons and prosecution
Section 7 Cumulative
Construction Impact due to the Concurrent Projects – summarizes the
relevant cumulative construction impact due to the concurrent activities of the
concurrent Projects.
Section 8 Conclusion
2.1.1.
“Wan
Chai Development phase II and Central-Wan Chai Bypass” and “Central-Wan Chai
Bypass and Island Eastern Corridor Link” (hereafter called “the Project”) are
Designed Project (DP) under the Environmental Impact Assessment Ordinance (Cap.
499) (EIAO). The Environmental Impact
Assessment (EIA) Reports for Central-Wan Chai Bypass and
2.1.2.
The
key purpose of Wan Chai Development Phase II (WDII) is to provide land at Wan
Chai North and North Point for construction of the Central-Wan Chai Bypass and
Island Eastern Corridor Link (CWB). Land formed under the project will be
developed as a world-class waterfront promenade joining that at the new Central
waterfront for public enjoyment.
2.1.3.
There
is a compelling and present need for the CWB to provide relief to the very
congested
2.2.1.
The
Project is located mainly in Wan Chai North, Causeway Bay and North Point, and
is demarcated by Gloucester Road and Victoria Park Road to the south, Fenwick
Pier Street to the west and Tong Shui Road Interchange to the east, as shown in
Figure 2.1.
2.2.2.
The
study area encompasses existing developments along the Wan Chai,
2.2.3.
The scope of the Project comprises:
·
Land formation for key transport infrastructure and
facilities, including the Trunk Road (i.e. CWB) and the associated slip roads for
connection to the Trunk Road and for through traffic from Central to Wan Chai and
Causeway Bay. The land formed for the above transport infrastructure will provide
opportunities for the development of an attractive waterfront promenade for the
enjoyment of the public
·
Reprovisioning / protection of the existing
facilities and structures affected by the land formation works mentioned above
·
Extension, modification, reprovisioning or
protection of existing storm water drainage outfalls, sewerage outfalls and
watermains affected by the revised land use and land formation works mentioned
above
·
Upgrading of hinterland storm water drainage system
and sewerage system, which would be rendered insufficient by the land formation
works mentioned above
·
Provision of the ground level roads, flyovers,
footbridges, necessary transport facilities and the associated utility services
·
Construction of the new waterfront promenade,
landscape works and the associated utility services
·
The Trunk Road (i.e. CWB) within the study area and
the associated slip roads for connection to the Trunk Road.
2.2.4.
The
project also contains various Schedule 2 DPs that, under the EIAO, require
Environmental Permits (EPs) to be granted by the DEP before they may be either
constructed or operated. Table 2.1 summarises the five
individual DPs under this Project. Figure 2.1 shows the locations of these Schedule 2 DPs.
Table
2.1 Schedule 2 Designated Projects
under this Project
|
Item |
Designated Project |
EIAO Reference |
Reason for inclusion |
|
DP1 |
Central-Wanchai Bypass (CWB) including its road tunnel and slip roads |
Schedule 2, Part I, A.1 and A.7 |
Trunk road and road tunnel more than 800 m in length |
|
DP2 |
Road P2 and other roads which are classified as primary/district
distributor roads |
Schedule 2, Part I, A.1 |
Primary / district distributor roads |
|
DP3 |
Reclamation works including associated dredging works |
Schedule 2, Part I, C.1 and C.12 |
Reclamation more than 5 ha in size and a dredging operation less than
100 m from a seawater intake point |
|
DP5 |
Wan Chai East Sewage Outfall |
Schedule 2, Part I, F.5 and F.6 |
Submarine sewage pipelines with a total diameter more than 1,200 mm
and include a submarine sewage outfall |
|
DP6 |
Dredging for the Cross-harbour Water Mains from Wan Chai to Tsim Sha
Tsui |
Schedule 2, Part I, C.12 |
A dredging operation less than 100 m from a seawater intake point |
2.3.1.
Due
to the multi-contract nature of the Project, there are a number of contracts
sub-dividing the whole works area into different work areas to be
commenced. Contractors of individual
contracts will be required by the EP holder to apply Further Environmental
Permits (FEP) such that the impact monitoring stations are sub-divided
accordingly to facilitate the implementation of EM&A programme and to
streamline the EM&A reporting for individual FEP holders correspondingly.
2.3.2.
The
details of individual contracts are summarized in Table2.2.
Table
2.2 Details of Individual Contracts
under the Project
|
Contract
No. |
Contract Title |
Associated
DP(s) |
Construction
Commencement Date |
|
HK/2009/01 |
Wan Chai Development Phase II – Central –Wanchai Bypass at |
DP3, DP6 |
23 July 2010 |
|
DP1, DP2 |
25 August 2011 |
||
|
HK/2009/02 |
Wan Chai Development Phase II – Central – Wan Chai Bypass at WanChai
East |
DP3, DP5 |
5 July 2010 |
|
DP1 |
26 April 2011 |
||
|
HY/2009/11 |
Wan Chai Development Phase II and Central – Wan Chai Bypass – North
Point Reclamation |
DP3 |
17 March 2010 (Under applicationof surrender) |
|
HY/2009/15 |
Central-Wanchai Bypass – Tunnel ( |
DP3 |
10 November 2010 |
|
DP1 |
13 July 2011 |
||
|
HK/2010/06 |
Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen
Wan Line |
DP3 |
22 March 2011 |
|
04/HY/2006 |
Reconstruction of Bus Terminus near |
DP1 |
September 2010 |
|
HY/2009/17 |
Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced
piling works. |
DP1 |
5 October 2010 |
|
HY/2009/18 |
Central - Wan Chai Bypass (CWB) – Central Interchange |
DP1 |
21 April 2011 |
|
HY/2009/19 |
Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link |
DP1 |
24 March 2011 |
|
HK/2012/08 |
Wan Chai
Development Phase II Central- Wan Chai Bypass at
Wan Chai West |
DP1,DP2,
DP3 |
March 2013 |
2.4.1.
Civil Engineering and Development Department and
Highways Department are the overall project controllers for the Wan Chai
Development Phase II and Central-Wan Chai Bypass respectively.
For the construction phase of the Project, Project Engineer, Contractor(s),
Environmental Team and Independent Environmental Checker are appointed to
manage and control environmental issues.
2.4.2.
The
proposed project organization and lines of communication with respect to
environmental protection works are shown in Figure 2.2. Key
personnel and contact particulars are summarized in Table 2.3:
Table 2.3 Contact Details of Key Personnel
|
Party |
Role |
Post |
Name |
Contact
No. |
Contact
Fax |
|
AECOM |
Engineer’s Representative for
WDII |
Principal Resident Engineer |
Mr. Frankie Fan |
2587 1778 |
2587 1877 |
|
Engineer’s Representative for CWB |
Principal Resident Engineer |
Mr. Peter Poon |
3912 3388 |
3912 3010 |
|
|
Chun Wo – Leader Joint Venture |
Contractor under Contract no. HK/2009/01 |
Joint
Venture Board Representative |
|
2162 9909 |
2587 1878 |
|
Deputy Site
Agent |
Mr Andy Yu |
9648 4896 |
|||
|
Construction
Manager |
Mr Terry
Wong |
9757 9846 |
|||
|
Construction
Manager |
Mr. Wyman
Wong |
9627 2467 |
|||
|
Construction
Manager |
Mr. Jack Chu |
9775 3008 |
|||
|
Environmental
Officer (Compliance Manager) |
Mr. Andy
Mak |
9103 2370 |
|||
|
Environmental
Supervisor |
Kwong Weng
Kit |
6253 3356 |
|||
|
Chun Wo – CRGL Joint Venture |
Contractor under Contract no. HK/2009/02 |
Deputy
Project Manager |
Mr. Chan Sing Cho |
3658 3002 |
2827 9996 |
|
Quality & Environmental Manager (Environmental Officer) |
Mr. C.P. Ho |
3658 3000 |
|||
|
|
Contractor under Contract no. HY/2009/15 |
Project Director |
K C Cheung |
3557 6399 |
2566 2192 |
|
Site Manager |
J H Chen |
3557 6368 |
|||
|
|
|
Contractor’s Representative |
Andrew Wong |
3557 6358 |
|
|
|
|
Head of Construction Manager |
Roger Cheung |
3557 6371 |
|
|
|
|
Senior Construction Manager |
Gene Cheung |
3557 6395 |
|
|
Environmental Officer |
Mr. Daniel Sin |
3557 6347 |
|||
|
Gammon -Leader JV |
Contractor under Contract no. HK/2010/06 |
Project
Manager |
Mr. Paul Lui |
9095 7922 |
2529 2880 |
|
Site Agent |
Mr. Keith Tse |
2529 2068 |
|||
|
Environmental Officer |
Clement
Pang |
9735 9200 |
|||
|
Environmental
Supervisor |
Jacky
Cheung |
9779 2292 |
|||
|
Chun Wo - CRGL - MBEC Joint Venture |
Contractor under Contract no. HY/2009/19 |
Project Manager |
Mr. Rayland Lee |
3758 8879 |
2570 8013 |
|
Site Agent |
Mr. Paul Yu |
9456 9819 |
|||
|
Environmental Engineer |
Mr. Calvin Leung |
9286 9208 |
|||
|
Environmental Manager / Environmental Officer |
Mr. M.H. Isa |
9884 0810 |
|||
|
Construction Manager (Marine) |
William Luk |
9610 1101 |
|||
|
Construction Manager (Land) |
Patrick Cheung |
9643 3012 |
|||
|
Construction Manager (Land) |
Eric Fong |
6191 9337 |
|||
|
Operation Manager (Land) |
Yung Kwok Wah |
9834 1010 |
|||
|
ENVIRON Hong Kong Limited |
Independent
Environmental Checker (IEC) |
Independent Environmental Checker (IEC) |
Mr. David Yeung |
34652888 |
34652899 |
|
Lam Geotechnics Limited |
Environmental
Team (ET) |
Environmental Team Leader (ETL) |
Mr. Raymond Dai |
2882 3939 |
2882 3331 |
2.5.1.
During
this reporting period, the principal work activities for Contract no.
HK/2009/01 are summarized in Table 2.4.
Table
2.4 Principal Work Activities for Contract no.
HK/2009/01
|
March 2013 |
April 2013 |
May 2013 |
|
Marine
Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Installation
of sheet pile wall for temporary open channel between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ
Installation of ELS for construction of
proposed box culvert Bay 8 and Bay 9. Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Ÿ Rockfilling
and rock protection to cross-harbour watermains. Ÿ Final
inspection for the CHWM (TST section) by WSD. Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline. Ÿ CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF). Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1A, B6-3, B6-4, B6-5B, A2-3A, A3-2B, A3-3C, C1-2 and X2-1. Ÿ Reinstatement
works in combined Zone A1-2A & A1-3A. Ÿ Mainlaying
works in Zone A2-3A and A3-2B. Ÿ Mainlaying
works at Zone A3-3C . Ÿ Mainlaying
works at Zone C1-2. Ÿ Reinstatement
works in Zone B6-5 and subsequent mainlaying works in Zone B6-4 and B6-5B. Ÿ Mainlaying
works in Zone B6-1A and Zone B6-3 (previously named B1-5A). Ÿ Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling
watermains. Ÿ Pressure
test for cross harbour watermains (whole length of land pipes in Wan Chai). Ÿ HEC and
PCCW cabling works in Zone A1-1 which connected to the proposed transformer
rectifier at new reclaimed area. Ÿ Mainlaying
works in Zone X2-1 of Tunnel
Works Ÿ Pre-drilling
works for CWB (Stage 2). Ÿ Diaphragm
wall construction works at Stage 2 (North). Ÿ 1st Piling
rig for pre-bored H piling works under atrium was mobilized to Site. E & M Ÿ Full
commissioning test for Cooling Water Pumping Station P3 & P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Ÿ FSD
inspection for Cooling Water Pumping Stations P3 & P4. Ÿ
FSD inspection for Cooling Water Pumping
Station P5. |
Marine
Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Installation
of shoring for temporary open channel between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ Installation
of ELS for construction of proposed box culvert Bay 8 and Bay 9. Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Ÿ Grade 75
Rockfilling and rock protection to cross-harbour watermains. Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline at
Ÿ CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF) . Ÿ Installation
of interim connecting pipe between existing main and the proposed pipeline at
Ÿ Installation
of interim connecting pipe between land main and submarine pipeline at Zone
B1-5A. Ÿ Ÿ Pre-handover
and final handover by WSD . Ÿ
HEC and PCCW cabling works in Zone A1-1 which
connected to the proposed transformer rectifier at new reclaimed area. Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1B, B6-2A, B6-4, B6-5B, A2-3A, A1-5C, A3-3C, C1-2 and X2-1. Ÿ Washout
pit construction in Zone A2-3A and A3-2B and Reinstatement works in Zone
A3-2B. Ÿ TTA at
Zone A1-5C at Ÿ Mainlaying
works at Zone C1-2 and X2-1. Ÿ Mainlaying
works in Zone B6-4 and B6-5B. Ÿ Mainlaying
works in Zone B6-1B and B6-2A. Ÿ Connection
works for 2nd Intake pipe of Convention Plaza (CP). Ÿ Trench
excavation in Zone X2-1 of Tunnel
Works Ÿ Pre-drilling
works for CWB (Stage 2). Ÿ Diaphragm
wall construction works at Stage 2 (North). The remaining Diaphragm wall
would be carried out after mobilization of Trench Cutter on site. Ÿ Temporary
bulkhead wall construction works between Stage1 / Stage2. Ÿ Trench
cutter was mobilized to Site. Ÿ Pre-bored
H piling works for CWB (Stage1b). Ÿ 2nd Piling
rig for pre-bored H piling works under atrium was mobilized to Site. E & M Ÿ Full
commissioning test for Cooling Water Pumping Station P3. Ÿ Handover
inspection for Cooling Water Pumping Station P1. Ÿ Handover
inspection for Cooling Water Pumping Station P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Application
of Epoxy Lining to Existing Box Culvert M (VO No.31) Ÿ Epoxy
lining application to the eastern box of the existing Box Culvert M. Ÿ
Epoxy lining application to the western box
of the existing Box Culvert M. |
Marine
Works (at Wan Chai) Ÿ Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Ÿ Construction
of mass concrete coping for new seawall. Ÿ Installation
of ELS for construction of proposed box culvert Bay 8 and Bay 9. Ÿ Prefabrication
of steel bridge on the top of temporary open channel along Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Ÿ Defect
rectification works for submarine pipeline A and pipeline B (removal of
silt). Ÿ All
recorded defects inspected by WSD during final handover inspection. Ÿ Installation
of ICCP monitoring system for new provided cross harbour watermain. Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Ÿ Mainlaying
works at Zone B6-1B, B6-2A, B6-4, B6-5B, A1-5C, A3-3C, C1-2 and X2-1. Ÿ Reinstatement
works at Zone A2-3A. Ÿ Mainlaying
works in Zone B6-1B, B6-2A, B6-4 and B6-5B at north & west of HKCEC. Ÿ Mainlaying
works in Zone A1-5C. Ÿ Temporary
ducting and cabling works at junction between E & M Ÿ Full
commissioning test for Cooling Water Pumping Station P3. Ÿ Handover
inspection for Cooling Water Pumping Station P1. Ÿ Handover
inspection for Cooling Water Pumping Station P4. Ÿ Full
commissioning test for Cooling Water Pumping Station P5. Application
of Epoxy Lining to Existing Box Culvert M (VO No.31) Ÿ Full
commissioning test for Cooling Water Pumping Station P5. |
2.5.2.
During
this reporting period, the principal work activities for Contract no.
HK/2009/02 are summarized in Table 2.5.
Table
2.5 Principal Work Activities for Contract no.
HK/2009/02
|
March 2013 |
April 2013 |
May 2013 |
|
Ÿ Modification work of PTI at Ÿ Modification of existing covered walkway along Ÿ Pressure tests for both intake main of GE/HC and SHK in the whole WCR1
area. Ÿ Pressure tests within northern part of WCR1 for both intake main of
CRB and discharge main of SHK. Ÿ Owing to the substantial settlement in the thrust blocks embedding the
completed intake pipelines near to their corresponding P7 & P8 Cooling
Water Pumping Station recorded, the flexible joints connecting with the
structure had been detached and the subsided pipeline would be
re-installed. Site investigation was
being carried out. Ÿ The defeated cable joint box near the proposed combined access chamber
had been rectified. Ÿ Major E&M works and their T&C in Cooling Water Pumping
Stations P7, P8 and P9. Ÿ Footpath reinstatement for the trenches near Harbour Centre. Ÿ Dry tests at WSD Salt Water Pumping Station. Wet test after completion of the proposed
intake culvert. Ÿ Drilling hole and installation of pipe bracket for aeration and
chlorination pipe inside salt water intake culvert between Bay 8 and Bay 11. Ÿ Installation of stoplog at Bay Ÿ Diver work at Bay 1B of the proposed intake culvert followed by
concrete plug. Ÿ The stability check to the proposed sheet pile removal works at Bay
2B. Ÿ Mainlaying works for DN800 salt watermains (CHS Ÿ The ABWF works in WSD Salt Water Pumping Station, including
maintenance platform and external finishes. Ÿ The second T&C Ÿ The trial period for the Outfall B. Ÿ Switching over works for sewage to WCE PTW. Ÿ Backfilling for the receiving pit adjacent to WCE PTW at Ÿ Saw cutting D-wall for 1050 dia. concrete pipe installation between
Bay 1 and the existing drainage. The
associated platform for pipe laying and manhole MH1 construction. Ÿ Proposed precast caisson seawall 2X ; infilling works. Ÿ Concreting of top-slab for PT2 & PT3 at Level 1 (+4.15mPD). Ÿ Concreting of eastern concrete staircase (ST1) from Level 1 to Observation
Deck Level. Ÿ Construction of Ÿ Concreting of base slab with stem wall for PT4 & PT5 at Level 1
(under +4.15mPD). Ÿ Installation of concrete block and plastering works wall for Stair-03
(2nos.) on Level 1 to Observation Deck Level. Ÿ ABWF including brickworks and E&M cable tray at 1/F, 2/F and M/F. Ÿ Planter wall and parapet wall construction on the Observation Deck. Ÿ Installation of winch & pulley system of proposed moveable ramp. Formwork erection for the late cast roof
slab. Ÿ Eastern Bulkhead Wall, Panel BHP5 and BHP8 were concreted. Excavation
for Panel BHP1 and BHP6. Ÿ Dredging works at TWCR4 after passing the 1-month T&C period of
the completed sewage outfall. |
Ÿ Modification work of PTI at Ÿ Modification of existing covered walkway along Ÿ Pressure tests for both intake main of GE/HC and SHK in the whole WCR1
area. Ÿ Remedial works for P7, P8. Mini pile foundation to support the
rectified pipeworks. Ÿ Major E&M works and their T&C in Cooling Water Pumping
Stations P7, P8 and P9. Ÿ Footpath reinstatement for the trenches near Harbour Centre. Ÿ Dry tests at WSD Salt Water Pumping Station. Wet test after completion of the proposed
intake culvert. Ÿ Drilling hole and installation of pipe bracket for aeration and
chlorination pipe inside salt water intake culvert between Bay 4 and Bay 11 (except
Bay 7) . Ÿ Installation of stoplog at Bay Ÿ Remedial works for concrete plug at Bay 1B. Ÿ Mainlaying works for DN800 salt watermains (CHS Ÿ Backfilling works of Bay19B at the junction between Ÿ The ABWF works in WSD Salt Water Pumping Station, including
maintenance platform and external finishes. Ÿ The whole sewage outfall system under Section VI was handed over to
DSD. Ÿ Backfilling for the receiving pit adjacent to WCE PTW at Ÿ Re-construction for the DSD Pumping Station boundary wall at Ÿ The manhole for 1050 dia. concrete pipe between Bay 1 and the existing
drainage. Ÿ Installation of concrete block and plastering works wall for toilet
over PT2 & PT3 at Level 1 (+4.15mPD). Ÿ Concreting of base slab and stem wall for PT4 & PT5 at Level 1
(+4.15mPD) and top-slab. Ÿ Installation of Steel frame on Observation Deck. Ÿ Formwork erection for the late cast roof slab. Ÿ Concreting of western concrete staircase to Level 2; and its construction
to Observation Deck Level. Ÿ Concreting of base slab and stem wall for PT1 at Level 1 (+4.15mPD). Ÿ Concreting of Ÿ Installation of bracket and railing for the proposed movable ramp
system. Ÿ Planter wall and parapet wall construction at Level 2 and Observation
Deck. Ÿ ABWF including brickworks and E&M cable tray at 1/F, 2/F and M/F. Ÿ Dredging of TWCR4 dredging works. |
Ÿ Modification
work of PTI at Ÿ Modification
of existing covered walkway along Ÿ Blinding
layer at CP4 in front of P7 Cooling Water Pumping Station. Ÿ Demolition
of thrust block for rectifying the P9 cooling watermains and the defeated
pipe had been replaced. Ÿ Major
E&M works and their T&C in Cooling Water Pumping Stations P7, P8 and
P9. Ÿ Footpath
reinstatement near Harbour Centre. Ÿ Utility
diversion for the outstanding DAV Chamber for P9 intake mains at Ÿ Both jacking
pit (at Bay 11) and receiving pit (at Bay 19B) for the construction of Intake
Culvert. Ÿ Backfilling
works for the Intake Culvert at Ÿ Backfilling
between Bay 6 to Bay 8. Ÿ Mainlaying
works for DN800 salt watermains (CHS8A) at Ÿ Backfilling
work at CH175 - CH195. Construction of bend block between CH150 – CH160 and
backfilling works near Gate No.1. Ÿ The ABWF
works in WSD Salt Water Pumping Station, including maintenance platform and
external finishes. Ÿ Dry tests
at WSD Salt Water Pumping Station. Ÿ Backfilling
for the receiving pit adjacent to WCE PTW at Ÿ Re-construction
for the DSD Pumping Station boundary wall at Ÿ Re-construction
for the DSD Pumping Station footpath next to the boundary wall. Ÿ Backfilling works between Bay 1 and the existing drainage. Ÿ Bracket & guard rail installation together with temporary
scaffolding erection for proposed movable ramp installation. Ÿ The last cast roof slab was concreted and the temporary falsework had
been dismantled. Ÿ Backfilling works for pipe trenches and the road modification works along
Ÿ Dredging at TWCR4 and WCR4. Ÿ Rockfilling by Grade 200 at TWCR4. |
2.5.3.
Major construction activities for Contract no.
HY/2009/15 was commenced on 10 November 2010. During this reporting period, the
principal work activities for Contract no. HY/2009/15 are summarized as below:
Table
2.6 Principal Work Activities for Contract no. HY/2009/15
|
March 2013 |
April 2013 |
May 2013 |
|
Ÿ Removal of
eastern breakwater of CBTS |
Ÿ Removal of
eastern breakwater of CBTS Ÿ Installation
of temporary wave protection barrier at eastern breakwater |
Ÿ Removal of
eastern breakwater of CBTS Ÿ Installation
of temporary wave protection barrier at eastern breakwater Ÿ Temporary
works for EVA |
2.5.4.
Contract
no. HK/2010/06 was commenced on 22 March 2011. During this reporting period,
the principal work activities for Contract no. HK/2010/06 are summarized as
below:
Table
2.7 Principal Work Activities for Contract no. HK/2010/06
|
March 2013 |
April 2013 |
May 2013 |
|
Ÿ Pile
Casing Cutting Ÿ Sheet
Piling Works Ÿ Utility
Diversion Works Ÿ
Precast Unit Box Construction (mainland |
Ÿ Sheet
Piling Works Ÿ Utility
Diversion Works Ÿ Road
surfacing preparatory works Ÿ Precast
Unit Box Installation Preparation Works (mainland |
Ÿ Sheet
Piling Works Ÿ Road
resurfacing works Ÿ Road
opening preparatory works Ÿ Precast
Unit Box Installation Preparation Works (mainland |
2.5.5.
Contract no. HY/2009/19 was commenced on 24 March
2011. During this reporting period, the principal work activities for Contract
no. HY/2009/19 are summarized as below:
Table
2.8 Principal Work Activities for Contract no. HY/2009/19
|
March 2013 |
April 2013 |
May 2013 |
|
Ÿ D-wall Construction
(North & South Section) Ÿ Guide wall
construction for D-wall / Barrette at North side Ÿ Construction
works for Box Culvert T1 Ÿ Marine
Piling Ÿ Construct
ion of socket-H pile Ÿ Construction
works for Culvert U1 Ÿ Construction
of Pile caps & columns (Land) Ÿ Dismantling
of marine platform Ÿ Demolition
of parapet at IEC Link Ÿ Construction
of Pile caps & columns (Marine) Ÿ Construction
of dewatering well for Cut & Cover Tunnel Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel |
Ÿ Bored
piling (Land) Ÿ D-wall and
Barrette Construction Ÿ Construction
works for Box Culvert T1 Ÿ Construct
ion of socket-H pile Ÿ Construction
works for Culvert U1 Ÿ Dismantling
of marine platform Ÿ Demolition
of parapet at IEC Link Ÿ Construction
of Pile caps & columns (Marine) Ÿ Construction
of dewatering well for Cut & Cover Tunnel Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel Ÿ Laying of
1500f pipe |
Ÿ D-wall and
Barrette Construction Ÿ Construction
works for Box Culvert T1 Ÿ Construction
works for Culvert U1 Ÿ Removal of
marine platform Ÿ Construction
of pile cap, column & cross head (Marine) Ÿ D8-D9
Gantry Fabrication for precast segment Ÿ ELS for
Cut & Cover Tunnel Ÿ Laying of
1500f pipe Ÿ Portal
gantry works Ÿ Launching
of girder Ÿ Launching
of segments Ÿ Unloading
segments from derrick Ÿ
Extraction of temporary pile from marine
section |
2.5.6.
Contract no. HK/2012/08 was commenced on March 2013.
During this reporting period, the principal work activities for Contract no. HK/2012/08
are summarized as below:
Table
2.9I Principal Work Activities for Contract no. HK/2012/08
|
March 2013 |
April 2013 |
May 2013 |
|
Ÿ Site
preparation works Ÿ Site
survey |
Ÿ Site
preparation works Ÿ Site
survey |
Ÿ Site
preparation works Ÿ Site
survey Ÿ Marine
ground investigation |
2.5.7.
Implementation
status of the recommended mitigation measures during this reporting period is
presented in Appendix 2.1.
Noise Monitoring Stations
3.1.1. The noise monitoring stations for the Project
are listed and shown in Table 3.1 and Figure 3.1. Appendix 3.1 shows the established Action/Limit
Levels for the monitoring works.
Table
3.1 Noise Monitoring Stations
|
Station |
Description |
|
M1a |
Harbour Road Sports Centre |
|
M2b |
Noon Gun Area |
|
M3a |
Tung Lo Wan Fire
Station |
|
M4b |
Victoria Centre |
|
M5b |
|
|
M6 |
HK |
Real
time Noise Monitoring Stations
3.1.1.
The real-noise monitoring stations for the Project are
listed and shown in Table 3.2 and Figure 3.1.. Appendix 3.1 shows the established Action/Limit Levels for
the monitoring works.
Table
3.2 Real Time Noise
Monitoring Station
|
District |
Station |
Description |
|
Tin Hau |
RTN1 |
FEHD Hong Kong Transport Section Whitefield Depot |
|
North Point |
RTN2 |
Oil Street Community Liaison Centre |
|
North Point |
RTN2a |
Electric Centre |
Noise Monitoring
Parameters, Frequency and Duration
3.1.2. The construction noise level
shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq).
Leq (30 minutes) shall be used as the monitoring parameter for the
time period
between 0700 and 1900 hours on normal weekdays. For all other time periods, Leq
(5 minutes) shall be employed for comparison with the Noise Control
Ordinance (NCO) criteria.
Supplementary information for data auditing, statistical results such as L10
and L90 shall also be obtained for reference.
3.1.3. Noise monitoring shall be
carried out at all the designated monitoring stations. The monitoring frequency
shall depend on the scale of the construction activities. The following is an initial
guide on the regular
monitoring frequency for each station on a weekly basis when noise generating
activities are underway:
·
one
set of measurements between 0700 and 1900 hours on normal weekdays.
3.1.4. If construction works are extended to include works during
the hours of 1900 – 0700 as well as public holidays and Sundays, additional
weekly impact monitoring shall be carried out during respective restricted
hours periods. Applicable permits under NCO shall be obtained by the
Contractor.
3.1.5. Real time noise shall be carried out at the
designated monitoring stations. The following is an initial guide on the
regular monitoring frequency for each station on a 24 hours daily basis when
noise generating activities are underway:
·
One
set of measurements between 0700 and 1900 hours on normal weekdays.
·
One
set of measurements between 1900 and 2300 hours on normal weekdays and 0700 and
2300 hours on public holidays.
·
One
set of measurements between 2300 and 0700 hours on next day on everyday.
Monitoring Equipment
3.1.6. As referred
to in the Technical Memorandum ™ issued under the NCO, sound level meters in
compliance with the International Electrotechnical Commission Publications 651:
1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying
out the noise monitoring. Immediately prior to and following each noise
measurement the accuracy of the sound level meter shall be checked using an
acoustic calibrator generating a known sound pressure level at a known
frequency. Measurements may be accepted as valid only if the calibration level
from before and after the noise measurement agree to within 1.0 dB.
3.1.7. Noise
measurements shall not be made in fog, rain, wind with a steady speed exceeding
5 m/s or wind with gusts exceeding 10 m/s. The wind speed shall be checked with
a portable wind speed meter capable of measuring the wind speed in m/s.
Air Quality Monitoring
Stations
3.2.1.
The
air monitoring stations for the Project are listed and shown in Table
3.3 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the
monitoring works.
Table 3.3 Air Monitoring Stations
|
Station ID |
Monitoring
Location |
Description |
|
CMA1b |
Oil Street Community
Liaison Centre |
North Point |
|
CMA2a |
|
|
|
CMA3a |
CWB PRE Site Office * |
|
|
CMA4a |
Society for the
Prevention of Cruelty to Animals |
Wan Chai |
|
CMA5a |
Children Playgrounds
opposite to |
Wan Chai |
|
CMA6a |
WDII PRE Site Office * |
Wan Chai |
* Remarks: As per the ENPC
meeting in January 2011, the monitoring stations CMA3a - Future CWB site office
at Wanchai Waterfront Promenade and CMA6a - Future AECOM site office at Work Area
were renamed as remark.
Air Monitoring Parameters,
Frequency and Duration
3.2.2.
One-hour
and 24-hour TSP levels should be measured to indicate the impacts of
construction dust on air quality. The 24-hour TSP levels shall be measured by
following the standard high volume sampling method as set out in the Title 40
of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.
3.2.3.
All
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 other local atmospheric factors affecting or
affected by site conditions, etc., shall be recorded down in detail.
3.2.4.
For
regular impact monitoring, the sampling frequency of at least once in every six-days,
shall be strictly observed at all the monitoring stations for 24-hour TSP
monitoring. For 1-hour TSP monitoring, the sampling frequency of at least three
times in every six-days should be undertaken when the highest dust impact
occurs.
Sampling Procedure and
Monitoring Equipment
3.2.5 High
volume samplers (HVSs) in compliance with the following specifications shall be
used for carrying out the 1-hour and 24-hour TSP monitoring:
·
0.6
- 1.7 m3 per minute adjustable flow range;
·
equipped
with a timing / control device with +/- 5 minutes accuracy for 24 hours
operation;
·
installed
with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
·
capable
of providing a minimum exposed area of 406 cm2;
·
flow
control accuracy: +/- 2.5% deviation over 24-hour sampling period;
·
equipped
with a shelter to protect the filter and sampler;
·
incorporated
with an electronic mass flow rate controller or other equivalent devices;
·
equipped
with a flow recorder for continuous monitoring;
·
provided
with a peaked roof inlet;
·
incorporated
with a manometer;
·
able
to hold and seal the filter paper to the sampler housing at horizontal
position;
·
easily
changeable filter; and
·
capable
of operating continuously for a 24-hour period.
3.2.6 Initial
calibration of dust monitoring equipment shall be conducted upon installation
and thereafter at bi-monthly intervals. The transfer standard shall be
traceable to the internationally recognized primary standard and be calibrated
annually. The concern parties such as IEC shall properly document the calibration
data for future reference. All the data should be converted into standard
temperature and pressure condition.
Laboratory Measurement /
Analysis
3.2.7 A clean
laboratory with constant temperature and humidity control, and equipped with
necessary measuring and conditioning instruments to handle the dust samples
collected, shall be available for sample analysis, and equipment calibration
and maintenance. The laboratory should be HOKLAS accredited.
3.2.8 An
alternative non-HOKLAS
accredited laboratory was set-up for carrying out the laboratory
analysis, the laboratory equipment was approved by the ER on 8
February 2011 and
the measurement procedures were witnessed by the IEC. Any measurement performed by
the laboratory was be demonstrated to the satisfaction of the ER and IEC. IEC shall
regularly audit to the measurement performed by the laboratory to ensure the
accuracy of measurement results.
3.2.9 Filter
paper of size 8" x 10" shall be labelled before sampling. It shall be
a clean filter paper with no pinholes, and shall be conditioned in a
humidity-controlled chamber for over 24-hours and be pre-weighed before use for
the sampling.
3.2.10 After
sampling, the filter paper loaded with dust shall be kept in a clean and
tightly sealed plastic bag. The filter paper shall then be returned to the
laboratory for reconditioning in the humidity controlled chamber followed by
accurate weighing by an electronic balance with readout down to 0.1 mg. The
balance shall be regularly calibrated against a traceable standard.
3.2.11 All the
collected samples shall be kept in a good condition for 6 months before
disposal.
impact monitoring for
odour patrol
3.2.12 Odour patrols along the
shorelines of Causeway Bay Typhoon Shelter and ex-Wan Chai Public Cargo Working
Area when there is temporary reclamation in Causeway Bay Typhoon Shelter and/or in the ex-Wan Chai Public Cargo
Working Area, or when there is dredging of the odorous sediment and slime at
the south-western corner of the Causeway Bay Typhoon Shelter. Odour patrols
will be carried out at bi-weekly intervals during July, August and September by
a qualified person of the ET who shall:
·
be
at least 16 years of age;
·
be
free from any respiratory illnesses; and
·
not
be allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30
min
·
before
and during odour patrol
3.2.13 Odour patrol shall be conducted by independent
trained personnel / competent persons patrolling and sniffing around the shore
as shown in Figure 3.1 to detect any odour at
the concerned hours (afternoon is preferred for higher daily temperature).
3.2.14 The qualified person will use the nose (olfactory
sensor) to sniff odours at different locations. The main odour emission sources
and the areas to be affected by the odour nuisance will be identified.
3.2.15 The perceived odour intensity is to be divided into
5 levels which are ranked in the descending order as follows:
·
0 -
Not detected. No odour perceived or an odour so weak that it cannot be easily
characterized or described;
·
1 -
Slight Identifiable odour, and slight chance to have odour nuisance;
·
2 -
Moderate Identifiable odour, and moderate chance to have odour nuisance;
·
3 -
Strong Identifiable, likely to have odour nuisance;
·
4 -
Extreme Severe odour, and unacceptable odour level.
3.2.16 The findings including odour intensity, odour
nature and possible odour sources, and also the local wind speed and direction
at each location will be recorded. In addition, some relevant meteorological
and tidal data such as daily average temperature, and daily average humidity,
on that surveyed day will be obtained from the Hong Kong Observatory Station
for reference. The Action and Limit levels for odour patrol are shown in Appendix 3.1.
3.3.1. The EIA Report has identified that the key water
quality impact would be associated with the dredging works during the
construction phase. Marine water quality
monitoring for dissolved oxygen (DO), suspended solid (SS) and turbidity is
therefore recommended to be carried out at selected WSD flushing water
intakes. The impact monitoring should be
carried out during the proposed dredging works to ensure the compliance with
the water quality standards.
3.3.2. The
updated EM&A Manual for EP-356/2009 (Version in March 2011) is approval by
EPD on 29 April 2011. As such, the Action Level and Limit Level for the wet
season (April – September) will be effected and applied to the water quality
monitoring data from 30 April 2011.
Water Quality Monitoring Stations
3.3.3. It is proposed to monitor the water quality at 9
WSD salt water intakes and 14 cooling water intakes along the seafront of the
Table
3.4
Marine Water Quality Stations for Water
Quality Monitoring
|
Station Ref. |
Location |
Easting |
Northing |
|
WSD Salt Water Intake |
|||
|
WSD7 |
|
834150.0 |
818300.3 |
|
WSD9 |
Tai Wan |
837921.0 |
818330.0 |
|
WSD10 |
Cha Kwo Ling |
841900.9 |
817700.1 |
|
WSD15 |
Sai Wan Ho |
841110.4 |
816450.1 |
|
WSD17 |
|
839790.3 |
817032.2 |
|
WSD19 |
Sheung Wan |
833415.0 |
816771.0 |
|
WSD20 |
|
830750.6 |
816030.3 |
|
WSD21 |
Wan Chai |
836220.8 |
815940.1 |
|
RW1 |
Wan Chai (Reprovision) |
836188.8 |
815911.1 |
|
Cooling Water Intake |
|||
|
C1 |
HKCEC Extension |
835885.6 |
816223.0 |
|
C2 |
Telecom House |
835647.9 |
815864.4 |
|
C3 |
HKCEC Phase I |
835836.2 |
815910.0 |
|
C4e |
Wan |
835932.8 |
815888.2 |
|
C4w |
Wan |
835629.8 |
815889.2 |
|
C5e |
Sun Hung Kai Centre (Eastern) |
836250.1 |
815932.2 |
|
C5w |
Sun Hung Kai Centre (Western) |
836248.1 |
815933.2 |
|
C6 |
World Trade Centre |
837009.6 |
815999.3 |
|
C7 |
|
837193.7 |
816150.0 |
|
C8 |
|
837970.6 |
816957.3 |
|
C9 |
Provident Garden |
838355.0 |
817116.6 |
|
RC1 |
Proposed HKAPA Extension |
835487.7 |
815987.7 |
|
RC5 |
Sun Hung Kai Centre (Reprovision) |
836291.4 |
816029.7 |
|
RC7 |
|
837245.2 |
816156.6 |
|
P1 |
HKCEC
Phase I |
835774.7 |
816179.4 |
|
P3 |
The |
835824.6 |
816212.0 |
|
P4 |
Shui on Centre |
835865.6 |
816220.0 |
|
P5 |
Government
Buildings ( |
835895.2 |
816215.2 |
Remarks: - The cessation of
seawater intake operation for C6 was confirmed on 17 May 2011, the water
monitoring at C6 was then terminated since 17 May 2011.
-
WSD9 and WSD17 were implemented with respect to HK/2009/02 from 8 Feb 2012.
- 4-week water quality monitoring at WSD9,
WSD10, WSD15, WSD17, C8 and C9 were completed on 6 Feb 2012.
- C8 and C9 were implemented with respect to
HY/2009/19 from 28 Jan 2012.
- WSD7 and WSD20 water quality monitoring were
temporarily suspended from 27 Apr 2012.
Water Quality Parameters
and frequency
3.3.4. Monitoring of dissolved oxygen (DO), turbidity and
suspended solids (SS) shall be carried out at WSD flushing water intakes and
cooling water intakes. DO and Turbidity are measured in-situ while SS is
determined in laboratory.
3.3.5. In association with the water quality parameters,
other relevant data shall also be measured, such as monitoring
location/position, time, sampling depth, water temperature, pH, salinity,
dissolved oxygen (DO) saturation, weather conditions, sea conditions, tidal
stage, and any special phenomena and work underway at the construction site
etc.
3.3.6. The interval between two sets of monitoring should not
be less than 36 hours except where there are exceedances of Action and/or Limit
Levels, in which case the monitoring frequency will be increased. Table 3.5 shows the proposed
monitoring frequency and water quality parameters. Duplicate in-situ measurements and water
sampling should be carried out in each sampling event. For selection of tides for in-situ
measurement and water sampling, tidal range of individual flood and ebb tides
should be not less than 0.5m.
Table
3.5 Marine Water Quality Monitoring Frequency
and Parameters
|
Activities |
Monitoring Frequency1 |
Parameters2 |
|
During the 4-week
baseline monitoring period |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
During marine construction works |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
After completion of marine construction works |
Three days per week,
at mid-flood and mid-ebb tides |
Turbidity, Suspended
Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
Notes:
1. For
selection of tides for in-situ measurement and water sampling, tidal range of
individual flood and ebb tides should be not less than 0.5m.
2.
Turbidity should be
measured in situ whereas SS should be determined by laboratory.
Dissolved Oxygen and
Temperature Measuring Equipment
3.3.7. The instrument should be a portable, weatherproof
dissolved oxygen measuring instrument complete with cable, sensor,
comprehensive operation manuals, and use a DC power source. It should be
capable of measuring:
·
a
dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation
·
a
temperature of 0-45 degree Celsius
3.3.8. It should have a membrane electrode with automatic
temperature compensation complete with a cable. Sufficient stocks of spare
electrodes and cables should be available for replacement where necessary.
(e.g. YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer with
reel and cable or an approved similar instrument).
3.3.9. Should salinity compensation not be build-in in the
DO equipment, in-situ salinity shall be measured to calibrate the DO equipment
prior to each DO measurement.
Turbidity Measurement
Instrument
3.3.10 The
instrument should be a portable, weatherproof turbidity-measuring instrument
complete with comprehensive operation manual. The equipment should use a DC
power source. It should have a photoelectric sensor capable of measuring
turbidity between 0‑1000 NTU and be complete with a cable (e.g. Hach
model 2100P or an approved similar instrument).
Sampler
3.3.11 Water sampler comprises a transparent PVC
cylinder, with a capacity of not less than 2 litres, and can be effectively
sealed with latex cups at both ends. The sampler should have a positive
latching system to keep it open and prevent premature closure until released by
a messenger when the sampler is at the selected water depth (e.g. Kahlsico
Water Sampler or an approved similar instrument).
Sample Container and
Storage
3.3.12 Water
samples for suspended solids measurement should be collected in high-density
polythene bottles, packed in ice (cooled to 4°C without being frozen), and
delivered to ALS Technichem (HK) Pty Ltd. as soon as possible after collection
for analysis.
Water Depth Detector
3.3.13 A
portable, battery-operated echo sounder shall be used for the determination of
water depth at each designated monitoring station. This unit can either be
handheld or affixed to the bottom of the workboat, if the same vessel is to be
used throughout the monitoring programme.
Salinity
3.3.14 A portable
salinometer capable of measuring salinity in the range of 0-40 ppt shall be
provided for measuring salinity of the water at each of monitoring location.
Monitoring Position
Equipment
3.3.15 A
hand-held or boat-fixed type digital Global Positioning System (GPS) with
waypoint bearing indication or other equivalent instrument of similar accuracy
shall be provided and used during monitoring to ensure the monitoring vessel is
at the correct location before taking measurements.
Calibration of In-situ Instruments
3.3.16 All
in-situ monitoring instrument shall be checked, calibrated and certified by a
laboratory accredited under HOKLAS or equivalent before use, and subsequently
re-calibrated at 3 monthly intervals throughout all stages of the water quality
monitoring. Responses of sensors and electrodes should be checked with
certified standard solutions before each use. Wet bulb calibration for a DO
meter shall be carried out before measurement at each monitoring location.
3.3.17 For the on
site calibration of field equipment by the ET, the BS 127:1993, "Guide to
Field and on-site test methods for the analysis of waters" should be
observed.
3.3.18 Sufficient
stocks of spare parts should be maintained for replacements when necessary.
Backup monitoring equipment shall also be made available so that monitoring can
proceed uninterrupted even when some equipment is under maintenance,
calibration, etc.
Laboratory Measurement /
Analysis
3.3.19 Analysis
of suspended solids has been carried out in a HOKLAS accredited laboratory, ALS
Technichem (HK) Pty Ltd. Water samples of about 1L shall be collected at the
monitoring stations for carrying out the laboratory SS determination. The SS
determination work shall start within 24 hours after collection of the water
samples. The SS determination shall follow APHA 19ed or equivalent methods
subject to the approval of IEC and EPD.
Enhanced Water Quality
Monitoring in the ex-Wan Chai Public Cargo
Working Area and the
3.3.10. The enhanced water quality monitoring and audit
programme is to avoid aggravation of odour nuisance from seawater arising from
temporary reclamation in the ex-Wan Chai Public Cargo Working Area and the
Causeway Bay Typhoon Shelter.
3.3.11. Dissolved oxygen monitoring at the intakes C6 and
C7 in Causeway Bay Typhoon Shelter when there is temporary reclamation in
Causeway Bay Typhoon Shelter and at the south-western and south-eastern corners
of the ex-Wan Chai Public Cargo Working Area. The proposed water quality
monitoring stations of the Project are shown in Table 3.6 and Figure 3.1.
Table 3.6 Marine
Water Quality Stations for Enhanced Water Quality Monitoring
|
Station |
Location |
|
C6 |
Excelsior Hotel |
|
C7 |
|
|
Ex-WPCWA-SW |
South-western of the ex-Wan Chai
Public Cargo Working Area |
|
Ex-WPCWA-SE |
South-eastern of the ex-Wan Chai
Public Cargo Working Area |
3.3.12. The monitoring of dissolved oxygen are to be
carried out 3 days per week, at mid-flood and mid-ebb tides for 3 water depths
(1m below water surface, mid-depth and 1m above sea bed, except where the water
depth less than 6m, the mid-depth may be omitted. If the water depth be less
than 3m, only the mid-depth will be monitored).
Daily SS Monitoring and 24
hours Turbidity Monitoring System
3.3.13. During dredging of the sediment at the
south-western corner of the Causeway Bay Typhoon Shelter, daily monitoring of suspended solids and 24 hour monitoring
of turbidity at the cooling water intakes (C6 and C7) shall be conducted.
3.3.14. The 24 hours monitoring of turbidty at the cooling water
intakes (C6 and C7) shall be established by setting up a
continuous water quality monitoring station in front of the intakes during the
dredging activities. The monitoring
system include the turbidity sensor and data logger which is capable of data capturing at every 5 minutes. The data shall be downloaded daily and compared with the Action and Limit
level determined during the baseline water qualtiy monitoring at the cooling
water intake locations.
Additional Dissovled
oxygen Monitoring FOR CULVERT L WATER DISCHARGE FLOW
3.3.15
In response to the Condition 2.18 of the Environmental Permit no.
EP-356/2009 requiring that a silt curtain / impermeable barrier system be
installed to channel water discharge flow from Culvert L to locations outside
the embayment area, a proposed replacement of the requirement with additional
dissolved oxygen monitoring has been conducted at three monitoring stations,
namely A, B and C between the eastern seawall of Central Reclamation Phase III
and the HKCEC Extension since November 2011 under EP-356/2009 so that DO level
between the eastern seawall of Central Reclamation Phase II and the HKCEC
extension could be continuously monitored.
3.3.16 The proposed DO monitoring
stations of the Project are shown in Table 3.7
Table
3.7 Marine Water Quality Stations for Additional
DO Monitoring
|
Station |
Easting |
Northing |
|
A |
835468 |
815857 |
|
B |
835572 |
815961 |
|
C |
835659 |
816271 |
3.3.17
The monitoring of dissolved oxygen are to be carried out once per week,
at mid-flood and mid-ebb tides for 3 water depths (1m below water surface,
mid-depth and 1m above sea bed, except where the water depth less than 6m, the
mid-depth may be omitted. If the water depth be equal to or less than 3m, only
the mid-depth will be monitored).
4.0.1. The environmental monitoring will be implemented
based on the division of works areas of each designed project managed under
different contracts with separate FEP applied by individual contractors. Overall layout showing work areas of various
contracts, latest status of work commencement and monitoring stations is shown
in
Figure
2.1 and Figure 3.1. The monitoring
results are presented in according to the Individual Contract(s).
4.0.2 The
major work activities for Contract no. HY/2009/11 was confirmed substantial
complete by RSS on 4 January 2012. The FEP surrender application
was submitted to EPD by contractor on 16 Jan 2012 that they would
surrender the permit on 1 Jan 2012. Moreover, the construction site was
handed over to contractor HY/2009/19 on 4 January 2012. However, the surrender
of the FEP for HY/2009/11 withdrew by contractor on 14 February 2012 due to
some outstanding works was confirmed by RSS on 10 Feb 2012.
Therefore, the noise, air and water quality monitoring were keeping in
view for the commencement of the works under this
contract. No construction activity was conducted by HY/2009/11 up to 4 January 2012.
4.0.3 According to EP-364/2009/A
Part B, “Scale and Scope of Designated Project”, Remarks (c),”The permanent and
temporary reclamation and associated dredging works related to the CWB
construction are separately covered by environmental permit No. EP-356/2009 issued
to Civil Engineering and Development Department”, and marine piling works
to be conducted by the Contractor of Contract no. HY/2009/19 from 28 January
2012 was considered to be governed under EP-356/2009. As the construction site
area of Contract no. HY/2009/11 had already been handed over to Contract no.
HY/2009/19, the designated noise, water and air quality monitoring stations for
Contract no. HY/2009/11 would be shared with Contract no. HY/2009/19 from 28
January 2012.
Contract no. HK/2009/01 - Wan Chai Development
Phase II – Central –Wanchai Bypass at HKCEC and Contract no. HK/2009/02 - Wan
Chai Development Phase II – Central – Wan Chai Bypass at WanChai East and Contract
no. HK/2010/06 Wan Chai Development Phase II – Central-Wan Chai Bypass over MTR
Tsuen Wan Line
4.1.1.
The
proposed divisions of noise monitoring stations are summarized in Table
4.1 below.
Table 4.1 Noise Monitoring Station for Contract nos. HK/2009/01 and HK/2009/02 and HK/2010/06
|
Station |
Description |
|
M1a |
Harbour Road Sports Centre |
4.1.2.
No
exceedance was recorded in this reporting period. Details of noise monitoring
results and graphical presentation can be referred in Appendix 4.1
Contract no. HY/2009/15 - Central-Wanchai Bypass – Tunnel (
4.1.3. The noise monitoring for HY/2009/15 was
commenced on 10 November 2010. The
proposed division of noise monitoring stations are summarized in Table
4.2 below.
Table
4.2
Noise Monitoring Station for Contract nos. HY/2009/15
|
Station |
Description |
|
M2b |
Noon Gun Area |
|
M3a |
Tung Lo Wan Fire Station |
4.1.4.
No
exceedance was recorded in this reporting period. Details of noise monitoring
results and graphical presentation can be referred in Appendix 4.1
Contract no. HY/2009/19 – Central- Wan Chai Bypass
Tunnel (North Point Section) and Island Eastern Corridor Link
4.1.5.
Noise
quality monitoring at M4b and M5b have been implemented with respect to
HY/2009/19 since the marine bore piling work started on 28 Jan 2012.
4.1.6.
The
proposed division of noise monitoring stations for Contract no. HY/2009/19 are
summarized in Table 4.3 below:
Table 4.3
Noise Monitoring
Stations for Contract no. HY/2009/19
|
Station |
Description |
|
M3a |
Tung Lo Wan Fire Station |
|
M4b |
Victoria Centre |
|
M5b |
|
|
M6 |
HK |
4.1.7.
Eleven
limit level exceedances was recorded at M6 on 7, 12, 19, 26 March, 3, 12, 16,
23 April, 2, 7 and 21 May 2013. Major traffic jam and no major work activities
were observed during monitoring, the exceedances on 7, 12, 19 March, 3, 16, 23
April, 2, 7 and 21 May were considered as non-project related.
4.1.8.
Breaking
works for pile head under HY/2009/19 were observed during monitoring on 26 March
2013. Despite nearby traffic was observed, it was considered that the breaking
operation was the major noise contribution. As such, the limit level exceedance
was concluded as project related. The temporary noise blanket at marine
platform was confirmed in place and rectification measures including provision
of additional noise screen for breakers and reduction in the number of breakers
in parallel use were implemented by the contractor after exceedance was
identified
4.1.9.
Breaking
works for pile head under HY/2009/19 were observed during monitoring on 12
April 2013. Despite nearby traffic was observed, it was considered that the
breaking operation was the major noise contribution. As such, the limit level
exceedance was concluded as project related. The temporary noise blanket at
marine platform was confirmed in place and rectification measures including
provision of additional noise blanket at top side of marine pier and reduction
in the number of breakers in parallel use were implemented by the contractor
after exceedance was identified
4.1.10.
Noise
monitoring results measured in this reporting period are reviewed and
summarized. Details of graphical
presentation can be referred in Appendix 4.1.
4.2.1 As the land-based piling
and filling works- DP3 at Tin Hau had been completed on 3 September 2012 and
confirmed by RSS, the real-time noise monitoring results at FEHD Hong Kong
Transport Section Whitfield Depot was excluded under EP-356/2009 since 28
November 2012.
4.2.2 The real-time noise
monitoring results at RTN1 (FEHD Hong Kong Transport Section Whitfield
Depot) was excluded under EP-356/2009 since 28 October 2012, as the land-based
piling and filling works- DP3 at Tin Hau had been completed on 3 September 2012
and confirmed by RSS
4.2.3 Oil Street Community Liaison Centre was confirmed
to be demolished in mid-October by CWB RSS.
This presented a need for relocation of RTN2 – Oil Street Community
Liaison Centre. After liaison with Hong
Kong Electric, permission was granted on 21 Sep 2012 for real time noise
monitoring set up at City Garden Electric Centre (RTN2a – Electric Centre),
which is a representative of the noise sensitive receiver City Garden. The real-time noise monitoring at RTN2-Oil
Street Community Liaison Centre has been relocated to City Garden Electric
Centre (RTN2a- Electric Centre) on 5 Oct 2012. The baseline noise level of
RTN2a will adopt the results derived from the baseline noise monitoring
conducted in Electric Centre from 4 December 2009 to 17 December 2009.
Contract no. HY/2009/19 – Central- Wan Chai Bypass
Tunnel (North Point Section) and Island Eastern Corridor Link
4.2.4
The
proposed divisions of real time noise monitoring stations are summarized in Table
4.4 below. Real time noise monitoring for the marine bored piling works
under contract no. HY/2009/19 was commenced on 28 January 2012.
4.2.5
Real-time
noise monitoring at FEHD Hong Kong Transport Section Whitefield Depot commenced
external wall renovation since 1 June 2012
4.2.6 The
major work activities for Contract no. HY/2009/11 was confirmed substantial complete
by RSS on 4 January 2012. The construction site was handed over to contractor
HY/2009/19 on 31 December 2011 in
this reporting period and the FEP-01/356/2009 was
surrendered on 22 October
2012.
The monitoring was temporary suspended since 5 January 2012.
4.2.7 Limit level exceedance was
recorded at RTN2a-Electric Centre during restricted hours on 20 May 2013 and
during daytime on 21 May 2013. After checking with contractor, no construction
work was conducted 20 May 2013 at the concerned location during the recorded
period and no major noisy construction work was conducted at the concerned
location on 21 May 2013. The exceedances were non-continuous and considered to
be contributed by near by IEC traffic.
4.2.8 Details of real time noise
monitoring results and graphical presentation can be referred to Appendix 4.2
Table
4.4 Real Time Noise
Monitoring Station for Contract no. HY/2009/11 and HY/2009/19
|
District |
Station |
Description |
|
Tin Hau |
RTN1 |
FEHD Hong Kong Transport Section
Whitefield Depot |
|
North Point |
RTN2 |
Oil Street Community Liaison Centre |
|
North Point |
RTN2a |
Electric Centre |
l
Real time noise monitoring results and
graphical presentation during night time period are for information only.
l RTN2 had been
relocated to RTN2a since 5 Oct 2012
l RTN1 monitoring
had been finished on 28 Nov 2012
4.3.1.
The location ID of air monitoring station CMA1b was
updated as Oil Street Site Office in the reporting month.
4.3.2.
Due to lack of electric supply, the 24-hr TSP
monitoring at the following stations were rescheduled as below:
CMA1b:
from 19 Apr 2013 to 20 Apr 2013
CMA2a:
from 4 Mar 2013 to 5 Mar 2013
CMA3a: from 8 Apr 2013 to 9 Apr 2013,
from 25 Apr 2013 to 26 Apr 2013
and from 1 May 2013
to 2 May 2013
CMA4a:
from 18 May 2013 to 20 May 2013
Contract no. HY/2009/11 – Central – Wanchai Bypass,
North Point Reclamation
4.3.3.
The major work activities for Contract no.
HY/2009/11 was confirmed substantial complete by RSS on 4 January 2012. The
construction site was handed over to contractor HY/2009/19 and the FEP-01/356/2009
was surrendered on 22 October 2012. The monitoring for the contract was
temporary suspended on 6 January 2012.
Contract no. HK/2009/01 - Wan Chai Development
Phase II – Central –Wanchai Bypass at HKCEC
4.3.4.
Air
monitoring was commenced on 1 April 2011 in response to the commencement of the
land-filling work for Contract no. HK/2009/01. The proposed division of air
monitoring stations are summarized in Table 4.6
below.
4.3.5.
1 action level and no limit level exceedances were
recorded during 1hr-TSP monitoring on 15 April 2013 at CMA6a – WD2 PRE Office
in this reporting month. The exceedances were concluded as non-project related.
Table 4.6 Air Monitoring Stations for Contract no. HK/2009/01
|
Station |
Description |
|
CMA5a |
Children Playgrounds opposite to |
|
CMA6a |
WDII PRE Site Office * |
Contract no. HK/2009/02 - Wan Chai Development
Phase II – Central – Wan Chai Bypass at WanChai East
4.3.6.
Air
monitoring was commenced in mid-January 2011 for the land-filling work for
Contract no. HK/2009/02. The proposed division of air monitoring stations is
summarized in Table 4.7 below. No exceedance was recorded in the
reporting period.
Table 4.7 Air Monitoring Station
for Contract no. HK/2009/02
|
Station |
Description |
|
CMA4a |
Society for the Prevention of Cruelty to Animals |
Contract no. HY/2009/15 - Central-Wanchai Bypass – Tunnel (
4.3.7.
Air
monitoring was commenced on 15 March 2011 for the land filling work for
Contract no. HY/2009/15. The proposed division of air monitoring
stations are summarized in Table 4.8 below.
4.3.8.
2 action level and no limit level exceedances were
recorded during 1hr-TSP monitoring on 15 April 2013 at CMA3a – CWB PRE Site
Office in this reporting month. The exceedances were concluded as non-project
related.
Table
4.8
Air
Monitoring Station for Contract no. HY/2009/15
|
Station |
Description |
|
CMA3a |
CWB site office at Wanchai
Waterfront Promenade |
Contract no. HY/2009/19 –Central- Wan Chai Bypass
Tunnel (North Point Section) and Island Eastern Corridor Link
4.3.9.
Air monitoring at CMA1b and CMA2a have been
implemented with respect to HY/2009/19 since the marine bore piling works
started on 28 Jan 2012. No exceedance was recorded in the reporting
period.
4.3.10.
2 action level and no limit level exceedances were
recorded during 1hr-TSP monitoring on 15 April 2013 at CMA1b – Oil Street Site
Office in this reporting month. The exceedances were concluded as non-project
related.
4.3.11.
The proposed division of air monitoring stations is
summarized in Table 4.9 below.
Table
4.9 Air
Monitoring Stations for Contract no. HY/2009/19
|
Station |
Description |
|
CMA1b |
Oil Street Community Liaison Centre |
|
CMA2a |
|
Contract no. HK/2009/01 - Wan Chai Development
Phase II – Central –Wanchai Bypass at HKCEC
4.4.1.
Water quality monitoring for Contract no. HK/2009/01 was
commenced on 23 July 2010. The proposed division of water monitoring stations
is summarized in Table 4.10 below.
4.4.2.
WQM
events on 22 April 2013 at monitoring stations C2, C3, C4e and C4w were
temporarily suspended. Upon confirmation with WDII RSS and the IEC, water
quality monitoring at relocated intakes monitoring location P1, P3, P4 and P5
were commenced since 24 April 2013.
Table 4.10 Water Monitoring Stations for Contract no. HK/2009/01
|
Station
Ref. |
Location |
Easting |
Northing |
|
WSD Salt Water Intake |
|||
|
WSD7 |
|
834150.0 |
818300.3 |
|
WSD19 |
Sheung Wan |
833415.0 |
816771.0 |
|
WSD20 |
|
830750.6 |
816030.3 |
|
Cooling Water Intake |
|||
|
C1 |
HKCEC
Extension |
835885.6 |
816223.0 |
|
C2 |
Telecom
House |
835647.9 |
815864.4 |
|
C3 |
HKCEC Phase
I |
835836.2 |
815910.0 |
|
C4e |
Wan |
835932.8 |
815888.2 |
|
C4w |
Wan |
835629.8 |
815889.2 |
|
P1 |
HKCEC Phase
I |
835774.7 |
816179.4 |
|
P3 |
The |
835824.6 |
816212.0 |
|
P4 |
Shui on
Centre |
835865.6 |
816220.0 |
|
P5 |
Government
Buildings ( |
835895.2 |
816215.2 |
Remarks:
- The
water monitoring stations for the dredging works under Contract No. HK/2009/01
should also include WSD9, WSD17, WSD 21 and C5 if water quality monitoring at
these locations have not been carried out by others. Similarly, the water
monitoring stations for the dredging works under Contract No. HK/2009/02 should
also include WSD7, WSD9, WSD17, WSD 19, C1, C2, C3 and C4 if water quality
monitoring at these locations have not been carried out by others.
-
WSD7 and WSD20 water quality monitoring were temporarily suspended since
27 Apr 2012.
Contract no. HK/2009/02 - Wan Chai Development Wan
Chai Development Phase II – Central – Wan Chai Bypass at WanChai East
4.4.3.
Water
quality monitoring for Contract no. HK/2009/02 was commenced on 8 July 2010.
The proposed division of water monitoring stations is summarized in Table
4.11 below.
4.4.4.
Due
to the blockage of the road access to C5e and C5w on 27 Mar 2013 during
mid-flood tide the sample was taken under contingency C5 on 27 Mar 2013 during mid-flood.
Table 4.11 Water Monitoring Stations for Contract no. HK/2009/02
|
Station
Ref. |
Location |
Easting |
Northing |
|||
|
WSD Salt Water Intake |
||||||
|
WSD21 |
Wan Chai |
836220.8 |
815940.1 |
|||
|
WSD9 |
Sheung Wan |
833415.0 |
816771.0 |
|||
|
WSD17 |
|
830750.6 |
816030.3 |
|||
|
Cooling Water Intake |
||||||
|
C5e |
Sun Hung
Kai Centre (Eastern) |
836250.1 |
815932.2 |
|||
|
C5w |
Sun Hung
Kai Centre (Western) |
836248.1 |
815933.2 |
|||
Remarks:
-
The
water monitoring stations for the dredging works under Contract No. HK/2009/01
should also include WSD9, WSD17, WSD 21 and C5 if water quality monitoring at
these locations have not been carried out by others. Similarly, the water
monitoring stations for the dredging works under Contract No. HK/2009/02 should
also include WSD7, WSD9, WSD17, WSD 19, C1, C2, C3 and C4 if water quality
monitoring at these locations has not been carried out by others.
-
Water
quality monitoring at WSD9 and WSD 17 was implemented with respect to
HK/2009/02 from 8 Feb 2012.
Contract no. HK/2010/06 - Wan Chai
Development Phase II – Central –Wanchai Bypass over MTR Tsuen Wan Line
4.4.5.
Water
monitoring for Contract no. HK/2010/06 was commenced on 8 March 2011. The
proposed division of water monitoring stations are summarized in Table 4.12
below.
Table
4.12
Water Monitoring Stations for Contract
no. HK/2010/06
|
Station
Ref. |
Location |
Easting |
Northing |
|
Cooling Water Intake |
|||
|
C2 |
Telecom
House |
835647.9 |
815864.4 |
Contract no.
HY/2009/15 - Central-Wanchai Bypass – Tunnel (
4.4.6.
Due to the commencement of the
maintenance dredging on 10 November 2010, water quality monitoring for Contract
no. HY/2009/15 was commenced on 9 November 2010. The proposed division of water
monitoring stations is
summarized in Table 4.13 below.
Table
4.13 Water Monitoring Stations for Contract no.
HY/2009/15
|
Station Ref. |
Location |
Easting |
Northing |
|
Cooling Water Intake |
|||
|
C6 |
Excelsior Hotel |
837009.6 |
815999.3 |
|
C7 |
|
837193.7 |
816150 |
Remarks: - The cessation of seawater intake operation for C6
was confirmed on 17 May 2011, the water monitoring at C6 was then terminated
since 17 May 2011.
Contract no. HY/2009/19 – Central- Wan Chai Bypass
Tunnel (North Point Section) and Island Eastern Corridor Link
4.4.7. Due to the
commencement of the marine bored piling on 28 Jan 2012, water quality
monitoring for Contract no. HY/2009/19 was commenced on 28 Jan 2012. The
proposed division of water monitoring stations are summarized in Table
4.14 below.
4.4.8.
As confirmed by HY/2009/19 contractor, there was no marine work to be
conducted on 26 December 2012, water quality monitoring at C8 and C9 were
temporary suspended on 26 December 2012 during mid-ebb and mid-flood.
4.4.9.
As confirmed by CWB RSS, the marine pilling works under contract
HY/2009/19 was confirmed completed by 4 March 2013. The water quality monitoring at the
respective monitoring stations C8 and C9 were temporarily suspended since 30
March 2013.
Table 4.14 Water Monitoring Stations for Contract no.
HY/2009/19
|
Station
Ref. |
Location |
Easting |
Northing |
|
Cooling Water Intake |
|||
|
C8 |
|
837970.6 |
816957.3 |
|
C9 |
Provident
Garden |
838355.0 |
817116.6 |
Remarks: C8 and C9 water monitoring
commenced on 28 Jan 2012.
4.4.10.
Due to the Amber Rainstorm signal was hoisted on 20 May 2013, water
quality monitoring at ebb tide were cancelled.
4.4.11.
Based on the joint inspection on 4 Jan 2012 for the NPR area, the 4-week
water quality monitoring at WSD9, WSD10, WSD15, WSD17, C8, C9 to confirm no
water deterioration with respect to NPR was commenced since 7 Jan 2012 and it
was completed on 6 February 2012.
4.4.12.
Water quality monitoring at WSD10 and WSD15 was temporary suspended
while water quality monitoring at WSD9 and WSD17 was implemented with respect
to HK/2009/02 from 8 Feb 12 onwards;
4.4.13.
Water quality monitoring at C8 and C9 have been implemented with respect
to HY/2009/19 since the marine bore piling work started on 28 Jan 12.
4.4.14.
Based on the safety concern when external façade refurbishment was
conducted by contractor employed by Provident Center (C9) between 9 January
2012 to 30 July 2012 which caused to the inaccessibility of sampling either
land and marine since 3 Feb 2012, there is a fine adjustment of the sampling
location of water quality monitoring at C9 since 10 March 2012 to the closest
accessible point prior to the completion of the external façade refurbishment
work.
4.4.15.
With respect to the trial dredging at WCR2 was scheduled on 20, 22, 24,
25 March and 1, 3 , 11, 13, 15, 17, 19, 20 Apr and 3 May 2012, on-going water
quality monitoring results at WSD21 during this period was checked and
indicated that there was no contribution due to the trial dredging
operation. Enhanced review of water quality around WCR2 was also
implemented and no deterioration in the water quality was observed.
4.4.16. Due to the access of water monitoring station at WSD19 was blocked
by LCSD construction works from 3 April 2012 to 2 May 2012 and lead to the
inaccessibility of sampling either land and marine, there is a fine adjustment
of the sampling point of WSD 19 since 5 April 2012 to the closest accessible
point prior to the completion of the construction activities.
4.4.17. Due to the dredging works for Cross Harbour Water Mains from
Wan Chai to Tsim Sha Tsui- DP6 was completed on 26 March 2012, the temporary
suspension of impact water quality monitoring at WSD7 and WSD20 after 27 April
2012 for the water quality monitoring at WSD7 and WSD20 have been monitored for
4-week period after the completion of DP6 to confirm no water deterioration.
4.4.18.
As
per the meeting with the representative of Excelsior Hotel and World Trade
Centre on 17 May 2011, they confirmed that the seawater intake for The
Excelsior was no longer in use and replaced by the connected permanent water
supply from WSD pipelines since 11 January 2011. Thus, the impact water quality
monitoring for the cooling intake - C6 was terminated effective from 26 May
2011.
4.4.19.
24 hours
monitoring of turbidity at the cooling water intakes at C7 was conducted. With respect to the seawall collapsing at TS4 on 17 November 2011, the
24 hours turbidity monitoring and was kept in November 2011. Since the
reinstating the seawall was completed on 13 January 2012 and no any water deterioration
was performed, 24 hour turbidity monitoring was then suspended on 27 January
2012.
4.4.20. Investigations were found that 6 turbidity and 5 SS
exceedances which were Project-related to Contract no. HK/2009/02 in October 2012. The details of the recorded exceedances can be referred to
the Section 5.4.
4.4.21.
The
enhanced water quality monitoring at C6, C7, Ex-WPCWA-SW and Ex-WPCWA-SE was
commenced on 13 January 2011. No
project-related exceedance was recorded in the daily SS monitoring and 24 hours
turbidity monitoring.
4.4.22.
Water
monitoring results measured in this reporting period are reviewed and
summarized in Table
4.15. Details of water quality
monitoring results and graphical presentation can be referred in Appendix 4.3.
Table 4.15 Summary of Water Quality Monitoring Exceedances in Reporting period
|
Contract no. |
Water Monitoring Station |
Mid-flood |
Mid-ebb |
|||||||||||
|
DO |
Turbidity |
SS |
DO |
Turbidity |
SS |
|||||||||
|
|
LL |
|
LL |
|
LL |
|
LL |
|
LL |
|
LL |
|||
|
HK/2009/01 |
WSD19 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
1 |
4 |
|
|
|
C1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
|
|
|
C3 |
1 |
7 |
0 |
0 |
0 |
0 |
1 |
6 |
0 |
0 |
0 |
0 |
|
|
|
C4e |
1 |
5 |
0 |
0 |
2 |
0 |
0 |
4 |
0 |
1 |
0 |
0 |
|
|
|
C4w |
2 |
3 |
0 |
0 |
1 |
0 |
1 |
4 |
0 |
0 |
0 |
1 |
|
|
P1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
P3 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
P4 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
P5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
HK/2009/01 & HK/2010/06 |
C2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HK/2009/02 |
C5e |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
|
|
|
C5w |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Monitoring started
on 8 Feb 2012 |
WSD21 |
1 |
0 |
0 |
0 |
3 |
1 |
0 |
0 |
0 |
0 |
1 |
2 |
|
|
WSD9 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
||
|
|
WSD17 |
0 |
0 |
1 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HY/2009/15 |
C7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
|
HY/2009/19 Monitoring started on 28 Jan 2012 |
C8 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
C9 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
Total |
5 |
15 |
4 |
1 |
8 |
1 |
3 |
14 |
1 |
7 |
3 |
7 |
||
Remarks: - The cessation of
seawater intake operation for C6 was confirmed on 17 May 2011, the water
monitoring at C6 was then terminated since 17 May 2011.
- WSD9 and WSD17 were implemented with respect to
HK/2009/02 from 8 Feb 2012.
- 4-week water quality monitoring at WSD9,
WSD10, WSD15, WSD17, C8 and C9 were completed on 6 Feb 2012.
- C8 and C9 were implemented with respect to
HY/2009/19 from 28 Jan 2012.
- C8 & C9 was temporary
suspended on 30 March 2013 due to the marine works for Contract no. HY/2009/19
had been completed on 4 March 2013
-
WSD7 and WSD20 were temporarily suspended from 27 Apr 2012
4.4.23.
Enhanced
DO monitoring at 4 monitoring stations in Causeway Bay Typhoon Shelter and
Ex-Public Cargo Works Area was conducted three days per week during the reporting
period. The action and limit level exceedances of water quality monitoring are
summarized in Table 4.15a.
Table 4.15a
Summary of Enhanced
Dissolved Oxygen Monitoring Exceedances in Reporting period
|
Contract
no. |
Water
Monitoring Station |
Mid-flood |
Mid-ebb |
||
|
DO |
DO |
||||
|
|
LL |
|
LL |
||
|
HY/2009/15 |
C6 |
0 |
0 |
0 |
0 |
|
C7 |
0 |
0 |
0 |
0 |
|
|
Ex-WPCWA SW |
0 |
5 |
1 |
3 |
|
|
Ex-WPCWA SE |
3 |
5 |
2 |
5 |
|
|
Total |
3 |
10 |
3 |
8 |
|
4.4.24.
There
were 6 action level exceedances and 18 limit level exceedances of enhanced
dissolved oxygen recorded in this reporting month. Investigation found that the
exceedances are not related to the Project works. Details of graphical presentation can be
referred in Appendix 4.3.
Contract no. HK/2009/01 - Wan Chai Development
Phase II – Central –Wanchai Bypass at HKCEC
4.5.1. No Inert C&D waste was recycled
and non-inert C&D
waste was disposed of for the site works in this reporting period. Details of
the waste flow table are summarized in Table 4.16.
Table 4.16 Details of Waste Disposal for
Contract no. HK/2009/01
|
Waste Type |
Quantity this quarter |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
5561.5 |
27806.915 |
TKO137, TM38 |
|
Inert C&D materials recycled, m3 |
0 |
5104.5 |
N/A |
|
Non-inert C&D materials disposed, m3 |
80.5 |
1314.98 |
SENT Landfill |
|
Non-inert C&D materials recycled, kg |
0 |
151143 |
N/A |
|
Chemical waste disposed, kg |
450 |
9450 |
N/A |
|
Marine Sediment (Type 1 – Open Sea Disposal)
, m3 |
0 (Bulk Volume) |
97428.2 (Bulk Volume) |
South of Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal
(Dedicate Sites) & Type 2 – Confined Marine Disposal) , m3 |
0 (Bulk Volume) |
52250 (Bulk Volume) |
East of Cha Chau |
|
Dredged Sediment Requiring Type 3 – Special Treatment / Disposal contained in Geosynthetic
Containers |
0 (Bulk Volume) |
6773 (Bulk Volume) |
East of Cha Chau |
4.5.2. There were no Marine Sediment (Type 1 –
Open Sea Disposal) and Marine Sediment
(Type 1- Open Sea Disposal (Dedicate Sites) & Type 2- Confined Marine
Disposal) disposed of in this reporting quarter.
Contract no. HK/2009/02 - Wan Chai Development
Phase II – Central – Wan Chai Bypass at WanChai East
4.5.3. Inert and non-inert C&D waste were disposed of for the
site works in this reporting period. Details of the waste flow table are
summarized in Table 4.17.
Table
4.17 Details of Waste Disposal for
Contract no. HK/2009/02
|
Waste Type |
Quantity this quarter |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
3850.7 |
233232.78 |
TKO137/ TM 38 |
|
Inert C&D materials recycled, m3 |
NIL |
18161 |
N/A |
|
Non-inert C&D materials disposed, m3 |
89.715 |
898.57 |
SENT Landfill |
|
Non-inert C&D materials recycled, m3 |
NIL |
NIL |
N/A |
|
Chemical waste disposed, kg |
1400 |
7436 |
SENT Landfill |
|
Marine Sediment (Type 1 – Open Sea
Disposal), m3 |
29340 |
184167 (Bulk volume) |
South of Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal
(Dedicate Sites) & Type 2 – Confined Marine Disposal), m3 |
11900 |
129320 (Bulk volume) |
East of Sha Chau |
4.5.4. There were Marine Sediment (Type 1 –
Open Sea Disposal) and Marine
Sediment (Type 1- Open Sea Disposal (Dedicate Sites) & Type 2- Confined
Marine Disposal) disposed of in this reporting quarter.
Contract no. HY/2009/15 -
Central-Wanchai Bypass – Tunnel (
4.5.5. No inert and non-inert C&D waste were disposed of for the site works
in this reporting period. Details of the waste flow table are summarized in Table
4.18.
Table
4.18 Details of Waste Disposal for
Contract no. HY/2009/15
|
Waste Type |
Quantity this quarter |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
NIL |
141579.2 |
Tuen Mun Area 38 |
|
NIL |
65216 |
TKO137 FB |
|
|
Inert C&D materials recycled, m3 |
NIL |
184.0 |
To Contract HY/2009/11 |
|
NIL |
304 |
Ex-PCWA |
|
|
|
NIL |
111.9 |
TS4 |
|
Non-inert C&D materials disposed, m3 |
NIL |
252.2 |
SENT Landfill |
|
Non-inert C&D materials recycled, kg |
NIL |
299361.5 |
N/A |
|
Chemical waste disposed, kg |
NIL |
8,200 |
N/A |
|
Marine Sediment (Type 1 – Open Sea Disposal)
, m3 |
NIL |
100,208 (Bulk
Volume) |
South of Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal (Dedicate
Sites) & Type 2 – Confined Marine Disposal) , m3 |
NIL |
218,665 (Bulk
Volume) |
East of Sha Chau |
|
Marine Sediment (Type 3 – Special Treatment
/ Disposal contained in Geosynthetic Containers) |
0 |
7,050 (Bulk Volume) |
East of Sha Chau |
|
Marine Sediment (Type 2 – Confined Marine
Disposal), m3 |
7850 (Bulk Volume) |
7850 (Bulk Volume) |
East of Sha Chau |
4.5.6. There was Marine Sediment (Type 1 – Open Sea
Disposal (Dedicate Sites) & Type 2 – Confined Marine Disposal) were disposed
in this reporting quarter.
Contract
no. HK/2010/06 - Wan Chai Development Phase II – Central –Wanchai Bypass over
MTR Tsuen Wan Line
4.5.7. Non-inert C&D and Inert
C&D waste were disposed of
for the site works in this reporting period. Details of the waste flow table
are summarized in Table 4.19.
Table
4.19 Details of Waste Disposal for
Contract no. HK/2010/06
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
214.8 |
12087.8 |
TM38 |
|
Inert C&D materials recycled, m3 |
0 |
267 |
N/A |
|
Non-inert C&D materials disposed, m3 |
134.33 |
184.48 |
N/A |
|
Non-inert C&D materials recycled, m3 |
0 |
60.58 |
N/A |
|
Chemical waste disposed, L |
0 |
2200 |
N/A |
|
Marine Sediment (Type 1 – Open Sea Disposal), m3 |
0 (Bulk Volume) |
3,891 (Bulk Volume) |
South Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal
(Dedicate Sites) & Type 2 – Confined Marine Disposal) , m3 |
0 (Bulk Volume) |
(Bulk Volume) |
|
4.5.8. There was no Marine Sediment (Type 1- Open Sea
Disposal) and no Marine Sediment (Type 1 – Open Sea Disposal (Dedicate Sites)
& Type 2 – Confined Marine Disposal) were disposed in this reporting
quarter.
Contract
no. HY/2009/19 – Central- WanChai Bypass Tunnel (North Point Section) and
Island Eastern Corridor Link
4.5.9. Inert and non-inert C&D waste were disposed of
in this reporting quarter
Table 4.20 Details of Waste
Disposal for Contract no. HY/2009/19
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
29408.24 |
183323.17 |
TM38 |
|
Inert C&D materials recycled, m3 |
39544.72 |
40867.72 |
N/A |
|
Non-inert C&D materials disposed, m3 |
85.18 |
343.54 |
N/A |
|
Non-inert C&D materials recycled, kg |
57.34 |
239.22 |
N/A |
|
Chemical waste disposed, L |
0.17 |
0.46 |
N/A |
|
Marine Sediment (Type 1 – Open Sea Disposal), m3 |
79 |
162 |
South Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal
(Dedicate Sites) & Type 2 – Confined Marine Disposal) , m3 |
17 |
681 |
|
4.5.10. There were marine sediments Type1- Open Sea
Disposal and Type 1 – Open Sea Disposal (Dedicate Sites) & Type 2 –
Confined Marine Disposal in the reporting period.
5.0.1. The Event Action Plan for construction noise, air
quality and water quality are presented in Appendix 5.1.
5.1.1
Eleven
limit level exceedances was recorded at M6 on 7, 12, 19, 26 March, 3, 12, 16,
23 April, 2, 7 and 21 May 2013. Major traffic jam and no major work activities
were observed during monitoring, the exceedances on 7, 12, 19 March, 3, 16, 23
April, 2, 7 and 21 May were considered as non-project related.
5.1.2
Breaking
works for pile head under HY/2009/19 were observed during monitoring on 26
March 2013. Despite nearby traffic was observed, it was considered that the
breaking operation was the major noise contribution. As such, the limit level
exceedance was concluded as project related. The temporary noise blanket at
marine platform was confirmed in place and rectification measures including
provision of additional noise screen for breakers and reduction in the number
of breakers in parallel use were implemented by the contractor after exceedance
was identified
5.1.3
Breaking
works for pile head under HY/2009/19 were observed during monitoring on 12
April 2013. Despite nearby traffic was observed, it was considered that the
breaking operation was the major noise contribution. As such, the limit level
exceedance was concluded as project related. The temporary noise blanket at
marine platform was confirmed in place and rectification measures including
provision of additional noise blanket at top side of marine pier and reduction
in the number of breakers in parallel use were implemented by the contractor
after exceedance was identified
5.1.4 Noise monitoring results measured in this reporting
period are reviewed and summarized.
Details of graphical presentation can be referred in Appendix 4.1.
5.2.2
Limit
level exceedance was recorded at RTN2a-Electric Centre during restricted hours
on 20 May 2013 and during daytime on 21 May 2013. After checking with
contractor, no construction work was conducted 20 May 2013 at the concerned
location during the recorded period and no major noisy construction work was
conducted at the concerned location on 21 May 2013. The exceedances were
non-continuous and considered to be contributed by near by IEC traffic.
5.2.3 Details of real time noise
monitoring results and graphical presentation can be referred to Appendix 4.2
5.3.1.
2
action level and no limit level exceedances were recorded during 1hr-TSP
monitoring on 15 April 2013 at CMA1b – Oil Street Site Office in this reporting
month. The exceedances were concluded as non-project related.
5.3.2.
2
action level and no limit level exceedances were recorded during 1hr-TSP
monitoring on 15 April 2013 at CMA3a – CWB PRE Site Office in this reporting
month. The exceedances were concluded as non-project related.
5.3.3.
1
action level and no limit level exceedances were recorded during 1hr-TSP
monitoring on 15 April 2013 at CMA6a – WD2 PRE Office in this reporting month.
The exceedances were concluded as non-project related.
5.4.1.
The
summary of water quality exceedances recorded in reporting period is presented
in the Table 5.1 and Table 5.1a.
Table 5.1 Summary of Water Quality Monitoring Exceedances in
Reporting period
|
Contract
no. |
Water
Monitoring Station |
Mid-flood |
Mid-ebb |
|||||||||||
|
DO |
Turbidity |
SS |
DO |
Turbidity |
SS |
|||||||||
|
|
LL |
|
LL |
|
LL |
|
LL |
|
LL |
|
LL |
|||
|
HK/2009/01 |
WSD19 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
1 |
4 |
|
|
|
C1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
|
|
|
C3 |
1 |
7 |
0 |
0 |
0 |
0 |
1 |
6 |
0 |
0 |
0 |
0 |
|
|
|
C4e |
1 |
5 |
0 |
0 |
2 |
0 |
0 |
4 |
0 |
1 |
0 |
0 |
|
|
|
C4w |
2 |
3 |
0 |
0 |
1 |
0 |
1 |
4 |
0 |
0 |
0 |
1 |
|
|
|
P1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
|
P3 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
|
P4 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
|
P5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HK/2009/01 & HK/2010/06 |
C2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HK/2009/02 |
C5e |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
|
|
|
C5w |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Monitoring started on 8 Feb 2012 |
WSD21 |
1 |
0 |
0 |
0 |
3 |
1 |
0 |
0 |
0 |
0 |
1 |
2 |
|
|
WSD9 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
||
|
|
WSD17 |
0 |
0 |
1 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HY/2009/15 |
C7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
|
HY/2009/19 Monitoring started on 28 Jan 2012 |
C8 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
C9 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
|
Total |
5 |
15 |
4 |
1 |
8 |
1 |
3 |
14 |
1 |
7 |
3 |
7 |
||
- WSD9 and
WSD17 were implemented with respect to HK/2009/02 from 8 Feb 2012.
- 4-week
water quality monitoring at WSD9, WSD10, WSD15, WSD17, C8 and C9 were completed
on 6 Feb 2012.
- C8 and C9 were implemented with respect to
HY/2009/19 from 28 Jan 2012.
- C8 & C9 was temporary suspended on 30
March 2013 due to the marine works for Contract no. HY/2009/19 had been
completed on 4 March 2013
- WSD7
and WSD20 were temporary suspended since 27 April 2012
5.4.2. All exceedances in Table 5.1 have been investigated. Total 20 DO exceedances,
5 turbidity exceedances and 9 SS exceedances were recorded during mid-flood
while 17 DO exceedance, 8 turbidity exceedances and 10 SS exceedances were
recorded during mid-ebb in the reporting period. Investigation revealed that
exceedances from 8 to 12 April 2013 at C3, C4e and C4w were project-related
exceedances. All the other remaining exceedances were concluded as
non-project-related.
Table 5.1a
Summary of Enhanced Dissolved Oxygen
Monitoring Exceedances in Reporting period
|
Contract no. |
Water Monitoring Station |
Mid-flood |
Mid-ebb |
||
|
DO |
DO |
||||
|
|
LL |
|
LL |
||
|
HY/2009/15 |
C6 |
0 |
0 |
0 |
0 |
|
C7 |
0 |
0 |
0 |
0 |
|
|
Ex-WPCWA SW |
0 |
5 |
1 |
3 |
|
|
Ex-WPCWA SE |
3 |
5 |
2 |
5 |
|
|
Total |
3 |
10 |
3 |
8 |
|
5.5.1. There was no non-compliance from the site audits in
the reporting period. During environmental site inspections conducted during
the reporting period, minor deficiencies were noted.
5.6.1
One project-related exceedance at M6 during
noise monitoring on 26 Mar 2013 was recorded.
5.6.2 One
project related exceedances at M6 during noise monitoring on 12 April 2013 was recorded.
5.6.3 Project related
exceedances at C3, C4e and C4w during water monitoring on 8-12 April 2013 was
recorded.
5.7.2 There was
one limit level exceedances of noise monitoring recorded on 26 March 2013 at
M6- HK Henrietta Secondary School that was considered in relation to pile head
breaking works conducted during monitoring.
5.7.3 Following
the Event and Action Plan, additional noise monitoring was conducted on 27
March 2013 and a proposal for remediation measures was submitted by the
contractor after the exceedance was identified.
5.7.4 The temporary noise blanket at
marine platform was confirmed in place and rectification measures including
provision of additional noise screen for breakers and reduction in the number
of breakers in parallel use were implemented by the contractor.
5.7.5 There was
one limit level exceedances of noise monitoring recorded on 12 April 2013 at
M6- HK Henrietta Secondary School that was considered in relation to pile head
breaking works conducted during monitoring.
5.7.6 Following
the Event and Action Plan, additional noise monitoring was conducted on 15
April 2013 and a proposal for remediation measures was submitted by the
contractor after the exceedance was identified.
5.7.7 The temporary noise blanket at
marine platform was confirmed in place and rectification measures including
provision of additional noise blanket at top side of marine pier and reduction
in the number of breakers in parallel use were implemented by the contractor.
5.7.8 There was
DO exceedence at C3, C4e and C4w recorded during both flood and ebb tide from 8
to 12 April 2013 in this reporting month. Deterioration of water circulation
within the water channel underneath HKCEC resulted from partial blockage of
water flow at HKCEC3E was observed and was considered as the major contribution
of the low DO level recorded.
5.7.9 The
Contractor, RE and IEC were informed when the exceedances were recorded. A
water pump was provided by the contractor at the water intake wells underneath
HKCEC. ET recommended the contractor to suspend the filling work at HKCEC3E,
clear the partial blockage and review the mitigation measures implemented to
restore the water quality (DO) at the concerned area.
5.7.10 Upon
considering the exceedance is related to the Project, the filling works at
HKCEC3E was suspended on 13 April 2013. Mitigation measures including provision
of water pump and opening of silt curtain enclosure at the concerned area which
blocks the water circulation without adversely impact nearby water quality.
5.7.11 The
effectiveness of the mitigation measure is closely reviewed at the concerned
area and the trend of DO is closely monitored. Rock filling at east side of
6.0.1. One
environmental complaint was received on 6 March 2013.
6.0.2. A water
quality complaint was received by ET on 8 March 2013 (ICC Ref. No: 1-407481502
dated 8 March 2013, forwarded by RSS). The complainant reported that dropping of
fine rock material into surrounding waterbody was observed during rock breaking
operation..
6.0.3. ET
confirmed with RSS that excavation works, installation of buoy, flashing light
and silt curtain and dredging works were undertaken at Eastern Breakwater during
the concerned period on 6 March 2013.
6.0.4. Reviewing
the photo record provided by RSS, the condition of the silt curtain deployed
around the Eastern Breakwater on 6 March 2013 was found to be in good
condition. It is considered that the silt curtain was properly in place during
the concerned period and the concerned act of dropping of fine rock material
was confined within the silt curtain boundary without adverse impact to the
nearby water quality. Further follow up was conducted on 12 March 2013 during
weekly environmental audit inspection, the silt curtain deployed around the
concerned area was found to be maintained in good condition and the water
quality at the concerned work area was generally satisfactory.
6.0.5. The contractor
was advised and committed to implement preventive meaures to miminize the
potential impact of work including conducting regular diver check to ensure the
integrity and the extend of silt curtain deployment and to provide adequtae
back up stock of silt curtain for emergency use.
6.0.6.
The details of cumulative complaint
log and summary of complaints are presented in Appendix
6.1.
6.0.7. No notification of summons or prosecution was received in the reporting
period. Cumulative statistic
on complaints and successful prosecutions are summarized in Table
6.1 and Table 6.2 respectively.
Table 6.1 Cumulative Statistics on Complaints
|
Reporting Period |
No. of Complaints |
|
Commencement works
(Mar 2010) to last reporting period |
27 |
|
March
2013- May 2013 |
1 |
|
Project-to-Date |
28 |
Table 6.2 Cumulative Statistics on Successful
Prosecutions
|
Environmental Parameters |
Cumulative No. Brought Forward |
No. of Successful Prosecutions this quarter (Offence Date) |
Cumulative No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Water |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
7.0.2. According
to the Monthly EM&A report (April 2013) of Central Reclamation Phase III
(CRIII), Installation of cable wall at PLA berth, footpath construction and Modification to the junction of Road D8 and
Road P2 were performed in the May 2013 reporting month. The water quality
monitoring was completed in October 2011 and no Project-related exceedance was
recorded for air and noise monitoring.
It can be concluded that cumulative construction impact due to the
concurrent activities of the current projects with the Central Reclamation
Phase III (CRIII) was insignificant
7.0.3. According
to the construction programme of Wan Chai Development Phase II, Central-Wan
Chai Bypass and Island Eastern Corridor Link projects, the major construction
activity under Wan Chai Development Phase II were marine works at HKCEC areas,
cross-harbour Watermains, Fresh Watermains and Cooling Watermains
Installations, tunnel works at Wan Chai East, ELS work at TS4 and deep
excavation at TPCWAE TCBR1W. Excavation and tunnel works at Central
Interchange, ELS and box culvert construction at North Point area. The major
environmental impact was water quality impact at
7.0.4. The major
environmental impacts generated from tunnel works at Central and tunnel works
at Wan Chai East, IECL and Causeway Bay Typhoon Shelter were undertaken in the
reporting month. No significant air impact from construction activities was
anticipated in the reporting month. Besides, there was works-related limit
level exceedance during water quality monitoring event in the reporting month
and rectification measures have been implemented by contractor. Thus, it is
evaluated that the cumulative construction impact from the concurrent projects
including Wan Chai Development Phase II was insignificant.
8.0.1. The EM&A programme was carried out in
accordance with the EM&A Manual requirements, minor alterations to the
programme proposed were made in response to changing circumstances.
8.0.2. No non-compliance was noted and no prosecution was
received during the reporting period.
8.0.3. The construction programmes
of individual contracts are provided in Appendix 7.1.