Contract No: HK/2011/07

 

Wanchai Development Phase II and Central Wanchai Bypass

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 and fep-05/356/2009

 

Quarterly Environmental Monitoring
and Audit Report

 

- December 2012 to FeBruary 2013 -

 

CLIENTS:

PREPARED BY:

 

 

Civil Engineering and Development

Department

 

and

 

Highways Department

 

Lam Geotechnics Limited

 

11/F Centre Point

181-185 Gloucester Road,

Wanchai, H.K.

 

Telephone: (852) 2882-3939

Facsimile: (852) 2882-3331

E-mail: info@lamenviro.com

Website: http://www.lamenviro.com

 

 

 

 

 

CHECKED by:



 

 

 

 

 

Raymond Dai

Environmental Team Leader

 

 

 

DATE:

 

 

March 2013


Table of contents

 

EXECUTIVE SUMMARY. 4

1. Introduction. 13

1.1 Scope of the Report 13

1.2 Structure of the Report 13

2. Project Background. 14

2.1 Background. 14

2.2 Scope of the Project and Site Description. 14

2.3 Division of the Project Responsibility. 15

2.4 Project Organization and Contact Personnel 16

2.5 Principal Work and Activities. 18

3. Monitoring Requirements. 24

3.1. Noise Monitoring. 24

3.2. Air Monitoring. 25

3.3. Water Quality Monitoring. 28

4. Monitoring Results. 34

4.1. Noise Monitoring Results. 34

4.2. Real Time Noise Monitoring Results. 35

4.3. Air Monitoring Results. 37

4.4. Water Monitoring Results. 38

4.5. Waste Monitoring Results. 44

5. Compliance Audit. 49

5.1. Noise Monitoring. 49

5.2. Real-time Noise Monitoring. 49

5.3. Air Monitoring. 49

5.4. Water Quality Monitoring. 49

5.5. Site Audit 51

5.6. Review of the Reasons for and the Implications of Non-compliance. 51

5.7. Summary of action taken in the event of and follow-up on non-compliance. 51

6. Complaints, Notification of Summons and Prosecution. 51

7. Cumulative Construction Impact due to the Concurrent Projects. 53

8. Conclusion. 53


lIST OF TABLES

 

Table I Principal Work Activities for Contract no. HY/2009/11

Table II Principal Work Activities for Contract no. HK/2009/01

Table III Principal Work Activities for Contract no. HK/2009/02

Table IV Principal Work Activities for Contract no. HY/2009/15

Table V Principal Work Activities for Contract no. HK/2010/06

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. HY/2009/11

Table 2.5 Principal Work Activities for Contract no. HK/2009/01

Table 2.6 Principal Work Activities for Contract no. HK/2009/02

Table 2.7 Principal Work Activities for Contract no. HY/2009/15

Table 2.8 Principal Work Activities for Contract no. HK/2010/06

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 Stations for Contract no. HY/2009/11

Table 4.2 Noise Monitoring Station for Contract nos. HK/2009/01 and HK/2009/02

Table 4.3 Noise Monitoring Station for Contract nos. HY/2009/15

Table 4.4 Real Time Noise Monitoring Station for Contract no. HY/2009/11 and HY/2009/19

Table 4.6 Real Time Noise Monitoring Station for Contract no. HY/2009/11 andHY/2009/19

Table 4.7 Air Monitoring Stations for Contract no. HY/2009/11

Table 4.8 Air Monitoring Stations for Contract no. HK/2009/01

Table 4.9 Air Monitoring Stations for Contract no. HY/2009/19

Table 4.10 Air Monitoring Station for Contract no. HY/2009/15

Table 4.11 Air Monitoring Station for Contract no. HY/2009/19

Table 4.12 Water Monitoring Stations for Contract no. HY/2009/11

Table 4.13 Water Monitoring Stations for Contract no. HK/2009/01

Table 4.14 Water Monitoring Stations for Contract no. HK/2009/02

Table 4.15 Water Monitoring Stations for Contract no. HK/2010/06

Table 4.16 Water Monitoring Stations for Contract no. HY/2009/15

Table 4.16a Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting period

Table 4.18 Summary of Water Quality Monitoring Exceedances in Reporting period

Table 4.19 Details of Waste Disposal for Contract no. HY/2009/11

Table 4.20 Details of Waste Disposal for Contract no. HK/2009/01

Table 4.21 Details of Waste Disposal for Contract no. HK/2009/02

Table 4.22 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

EXECUTIVE SUMMARY

  1. This is the Quarterly Environmental Monitoring and Audit (EM&A) Report December 2012 to February 2013 prepared for the Project of Wan Chai Development Phase II and Central-Wanchai Bypass under Environmental Permit no. EP-356/2009 and Further Environmental permit nos. FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009. This report presents the environmental monitoring and audit findings and information during the period from December 2012 to February 2013. The cut-off date of reporting is at 27th of each reporting period.

 

Construction Activities for the Reported Period

  1. During this reporting period, the principal work activities for Contract no. HK/2009/01 are summarized as below:

Table I Principal Work Activities for Contract no. HK/2009/01

December 2012

January 2013

February 2013

Marine Works (at Wan Chai)

Ÿ Rockfilling of HKCEC3E (East of HKCEC) between CH290 and CH385

Ÿ Lateral supporting temporary pipe pile wall including grouting and tie back installation works

Ÿ Removal of existing seawall and rock armour at Expo Drive East

Ÿ Dredging works for Type 2 sediment beneath Expo Drive East Bridge

Ÿ Installation of precast seawall blocks for caisson and box culvert (Bay 10) installation

Ÿ Fabrication of 3 nos. precast concrete caisson seawall, 1 no. precast concrete box culvert (namely Bay10) and 2 nos. precast discharge outfall in precasting yard at Guangdong, China

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains

Ÿ Thrust block construction for A18B18

Ÿ Reinstatement works for the TST landfall was temporary suspended and the site area was handed over to LCSD

Ÿ Construction of transformer rectifier at new reclaimed area

 

Fresh Watermains, Cooling Watermains and Salt Watermains (On Land)

Ÿ Mainlaying works at Zone B6-1, B6-3, B6-5, B3-1, A1-1, A1-2, A1-4, A1-2A & A1-3A, A2-3D, A3-2A, A3-4A, A3-5A, A3-3C, C1-6 and Run-out of Renaissance Hotel

Ÿ Mainlaying works and partially reinstatement in Zone A1-1 & A1-2

Ÿ Mainlaying works and subsequent reinstatement in Zone A2-3D (Stage 1), A3-2A & Heading No. 1 and A3-4B

Ÿ Mainlaying works at Zone A3-4A, A3-5A and A3-3C

Ÿ Mainlaying and chamber construction works at the traffic island near junction of Convention Avenue and Fenwick Pier Street

Ÿ Mainlaying works in Zone C1-6 of Expo Drive East and TTA Zone C1-4

Ÿ Mainlaying works for proposed sewerage system in Zone B6-1, B6-3 (previously named B1-5A) and B6-5 (previously named B2-1)

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains 23 out of 27 sections of cooling mains pipeline has been satisfied the pressure test.

 

E&M

Ÿ Full commissioning test for Cooling Water Pumping Station P1

Ÿ Site test for all E&M equipment and facilities in Cooling Water Pumping Station P5

Ÿ Preparation works including testing and commissioning of all E&M equipment, BMS system and facilities in Cooling Water Pumping Station P3 and P4

Marine Works (at Wan Chai)

Ÿ Rockfilling of HKCEC3E (East of HKCEC) between CH290 and CH385

Ÿ Dredging works for Type 2 sediment near Wan Chai West Ferry Pier

Ÿ Rockfilling at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for subsequent open channel construction

Ÿ Installation of precast seawall blocks for caisson and box culvert (Bay 10) installation

Ÿ Installation of precast units including caisson seawalls, box culvert (namely Bay10) and discharge outfall was commenced and substantially completed

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains

Ÿ Reinstatement works including seawall coping, gully, drawpit and tree transplantation for the TST landfall was resumed.

Ÿ Construction of transformer rectifier at new reclaimed area was completed in reporting month and its cabling work

 

Fresh Watermains, Cooling Watermains and Salt Watermains (On Land)

Ÿ Mainlaying works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A2-3D (Stage 2), A3-3B, A3-4A, A3-5A, A3-3C and C1-4.

Ÿ Mainlaying works and substantially reinstatements in combined Zone A1-1 & A1-2, Zone A1-4 and Run-out of Renaissance Hotel.

Ÿ Mainlaying works at Zone A1-3 (CHWM).

Ÿ Mainlaying works at Zone A1-2 (CHWM), Zone A2-3D (Stage 2) and A3-3B.

Ÿ Mainlaying works at Zone A3-4A and A3-5A.

Ÿ Mainlaying works at Zone A3-3C.

Ÿ Mainlaying and chamber construction works at the traffic island near junction of Convention Avenue and Fenwick Pier Street.

Ÿ The preparation works (including exposure of installed gate valve and repair of gate valve) at Convention Avenue for facilitating the changeover of cooling mains system of HKAPA.

Ÿ Mainlaying works at Zone C1-4.

Ÿ Mainlaying works for proposed sewerage system in Zone B6-1, B6-3 (previously named B1-5A) and B6-5 (previously named B2-1)

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains 25 out of 27 sections of cooling mains pipeline has been satisfied the pressure test.

 

Tunnel Works

Ÿ Backfilling works on top of SCL protection works.

Ÿ Pre-bored H piling works for the proposed CWB and altogether 10 nos. and 9 nos. of pre-bored H piles.

Ÿ Pre-drilling works for CWB (Stage 2).

Ÿ Ground treatment works for proposed CWB diaphragm wall.

Ÿ Plant Mobilization for diaphragm wall construction works at Stage 2.

 

E&M

Ÿ Full commissioning test for Cooling Water Pumping Station P1

Ÿ Site test for all E&M equipment and facilities in 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 Rockfilling at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for subsequent open channel construction.

Ÿ Installation of precast block seawall (Type 1, 2 & 3).

Ÿ Construction of mass concrete coping for new seawall.

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains.

Ÿ Reinstatement works including seawall coping, gully, drawpit and tree transplantation for the TST landfall.

Ÿ Flushing to the cross-harbour water main (including CHA, CHB, CHE & CHF).

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 B6-1, B6-3, B6-5, A1-2A & A1-3A, A3-3C and C1-2 .

Ÿ Mainlaying works and substantially reinstatements in Zone A1-2, A2-3D (Stage 2), C1-4 and A3-4A.

Ÿ Grouting, pipe connection and reinstatement works in combined Zone A1-2A & A1-3A.

Ÿ Grouting, pipe connection and reinstatement works in Zone A1-3B.

Ÿ Mainlaying works and substantially reinstatements in Zone A3-5A, A3-3B and footpath of Fenwick Pier Street.

Ÿ Preparation works at Zone A3-3C for subsequent connection works.

Ÿ The preparation works (including exposure of installed gate valve and repair of butterfly valve) at Convention Avenue for facilitating the changeover of cooling mains system of HKAPA.

Ÿ The preparation works (including exposure of installed gate valve and repair of gate valve) at Convention Avenue for facilitating the changeover of cooling mains system of SOC.

Ÿ Mainlaying works at Zone C1-2.

Ÿ Mainlaying works and coring works at external wall of seawater pumping stations for proposed sewerage system in Zone B6-1.

Ÿ Mainlaying works and substantially reinstatements in Zone B6-3 (previously named B1-5A) and B6-5 (previously named B2-1).

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains.

Ÿ CCTV inspection for cross-harbour watermains (land pipe at Wan Chai).

Ÿ Pressure test for cross harbour watermains (whole length of land pipes in Wan Chai).

Ÿ Trench excavation for HEC and PCCW cabling works connected to the proposed transformer rectifier at new reclaimed area.

 

Tunnel Works

Ÿ Backfilling works on top of SCL protection works.

Ÿ Pre-bored H piling works for the proposed CWB stage 1b

Ÿ Pre-drilling works for CWB (Stage 2).

Ÿ Diaphragm wall construction works at Stage 2.

Ÿ Removal of remaining guide wall along Convention Avenue.

 

E & M

Ÿ Full commissioning test for Cooling Water Pumping Station P1.

Ÿ Site test for all E&M equipment and facilities in Cooling Water Pumping Station P5.

Ÿ Initial commissioning test for Cooling Water Pumping Station P5.

 

 

  1. During this reporting period, the principal work activities for Contract no. HK/2009/02 are summarized as below:

Table II Principal Work Activities for Contract no. HK/2009/02

December 2012

January 2013

February 2013

Ÿ Concreting the slab with hanger wall for planting area (+13.55mPD) between G.L.3-6/B-C & E-F on Observation Deck Level (+14.65mPD)

Ÿ Concreting the base slab and wall of sprinkler water tank machine room and the slab of Machine Room

Ÿ Installation of concrete block wall for store room 1 and room 2 on Level 1

Ÿ Erecting the wall stem formwork for caisson seawall precast unit 2X on flat-top barge

Ÿ Modification work of PTI at Expo Drive East

Ÿ Modification work of bus station at Expo Drive East near EVA

Ÿ Breaking up the existing covered walkway footing at Expo Drive East

Ÿ Rectification works at bending block of cooling mains

Ÿ E&M works and ABWFs installation at WSD Salt Water Pumping Station

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 3 to Bay 5

Ÿ Concreting of the structure at salt water intake culvert Bay 10 and Bay 11 at WCR1

Ÿ Steel fixing of the shaft of Bay 2a in salt water intake seaside cofferdam

Ÿ Breaking the existing concrete road slab for DN800 salt water mains at Ex-pet garden near gate 1

Ÿ Installation the shoring to trial pit of the permanent connection point to existing DN 600 water main at Hung Hing Road was commenced

Ÿ Installation of precast concrete short pipe extended from the existing 1800 drainage at Box Culvert N landside

 

Ÿ Modification work of PTI at Expo Drive East.

Ÿ Modification work of bus station at Expo Drive East near EVA.

Ÿ Breaking up the existing covered walkway footing at Expo Drive East.

Ÿ Concreting the retaining wall base slab of Bay1, Bay 2 and Bay 5 at Expo Drive East.

Ÿ Rectification works at bending block of cooling mains.

Ÿ Backfilling at the conjunction between Tonnochy road and Harbour Road was commenced after replacement of cable joint.

Ÿ E&M works and ABWFs installation at WSD Salt Water Pumping Station.

Ÿ Concreting infill mass concrete at both sides and concreting 1m width x 300mm high mass for cover M.J. at Bay 9 to Bay 11 in salt water intake landside cofferdam.

Ÿ Backfilling grade 200mm rock material in the trench at Bay 6 to Bay 8 in salt water intake landside cofferdam.

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 3 to Bay 5.

Ÿ The shafts of Intake chamber No.1 and No.2 for Bay 2A in salt water intake seaside cofferdam were casted the 2nd layer of the horizontal struts.

Ÿ Placing concrete for bend blocks btw CHS8A 150-165 at Ex-pet garden near new Gate No.2.

Ÿ Installation the shoring to trial pit of the permanent connection point to existing DN 600 water main at Hung Hing Road.

Ÿ Saw cutting of southern diaphragm wall for the connection between existing drainage and Bay 1 of box culvert N1.

Ÿ Laying 1800mm dia. concrete pipe for the connection between existing drainage and Bay 1 of box culvert N1.

Ÿ Erecting formwork for concrete surround for concrete pipe.

Ÿ Concreting of columns (total 6nos.) from M/F (+11.15mPD) to Observation Deck Level (+14.65mPD) and Slab with beam between G.L.1-3/B-F on Level 2 (+7.65mPD).

Ÿ Concreting of columns (total 9nos.) from Level 2 (+7.65mPD) to Observation Deck Level (+14.65mPD).

Ÿ Concreting of portion 2 for column C2C from +11.65mPD to +13.90mPD up to Observation Deck Level (+14.65mPD).

Ÿ Concreting of portion 1 for column C2E from +7.65mPD to +11.65mPD up to Observation Deck Level (+14.65mPD).

Ÿ Steel fixing and Formwork erection to Observation Deck Level at from GL 3-8 & 9-15.

Ÿ Installation of concrete block wall for store room 1 and room 2 on Level 1.

Ÿ Placing concrete of the final portion for precast scission seawall 2X.

 

Ÿ Modification work of PTI at Expo Drive East.

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ Pressure tests and the necessary rectification works for the installed cooling watermains.

Ÿ Backfilling for trench at the junction between Tonnochy Road and Harbour Road.

Ÿ E&M works and their T&C in Cooling Water Pumping Stations P7, P8 and P9.

Ÿ Wet Tests at WSD Salt Water Pumping Station.

Ÿ Backfilling grade 200 mm rock materials from Bay 6 to Bay 11 in salt water intake landside cofferdam.

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 19B to Bay 24.

Ÿ Diver work for excavation down to formation level at Bay 1B in salt water intake seaside cofferdam.

Ÿ Mainlaying works for DN800 salt watermains (CHS8A) at Ex-Pet Garden.

Ÿ Works for the Outfall B had been and the dye test.

Ÿ Switching over works for sewage to WCE PTW.

Ÿ RC structures for the proposed Ferry Pier.

Ÿ Construction of eastern concrete staircase to Observation Deck Level.

Ÿ Concreting of base slab with stem wall for PT2 & PT3 at Level 1 (under +4.15mPD).

Ÿ Installation of concrete block wall for store room 1 and store room 2 on Level 1.

Ÿ Application of protective coating to proposed precast caisson seawall 2X

Ÿ Eastern Bulkhead Wall, Panel BHP3, BHP7 and BHP9 were cast (3 out of 13 panels) and excavation for Panel BHP5.

 

 

  1. 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 III Principal Work Activities for Contract no. HY/2009/15

December 2012

January 2013

February 2013

Ÿ TZ1 and TS2 reclamation works

Ÿ Formation of temporary seawall at TS2

Ÿ TZ1 and TS2 reclamation works

Ÿ Formation of temporary seawall at TS2

 

Ÿ Removal of eastern breakwater of CBTS

 

 

  1. 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 IV Principal Work Activities for Contract no. HK/2010/06

December 2012

January 2013

February 2013

Ÿ Sheet piling

Ÿ Platform Disassembly

Ÿ Bored pile casing cutting

Ÿ Grouting

Ÿ Disassembly of staging platform

Ÿ Pile case cutting

Ÿ Sheet pile installation

Ÿ Dredging

Ÿ Construction of pre-cast unit in mainland China

 

Ÿ Pile Head Breaking

Ÿ Pile Casing Cutting

Ÿ Sheet Piling Works

Ÿ Dredging

Ÿ Utility Diversion Works

Ÿ Precast Unit Box Construction (mainland China)

 

 

  1. 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 V Principal Work Activities for Contract no. HY/2009/19

December 2012

January 2013

February 2013

Ÿ Marine bored piling

Ÿ Construction works for Box Culvert T

Ÿ Construction of 1500f drainage pipe

Ÿ Road works at Watson Road

Ÿ Bored piling (Land)

Ÿ Pre-drilling works for bored pile and Diaphragm wall

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 cap & column (Land)

Ÿ Dismantling of marine platform

Ÿ Demolition of parapet at IEC Link

Ÿ Construction of Pile caps & columns (Marine)

Ÿ Cut & Cover Tunnel sheet piling works and installation of King Post

Ÿ Construction of dewatering well for Cut & Cover Tunnel

Ÿ Road works at Watson Road

Ÿ Bored piling (Land)

Ÿ Pre-drilling works for bored pile and Diaphragm wall

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 cap & column (Land)

Ÿ Dismantling of marine platform

Ÿ Demolition of parapet at IEC Link

Ÿ Construction of Pile caps & columns (Marine)

Ÿ Cut & Cover Tunnel sheet piling works and installation of King Post

Ÿ D8-D9 Gantry Fabrication for precast segment will continue

Ÿ Construction of dewatering well for Cut & Cover Tunnel

Ÿ ELS for Cut & Cover Tunnel

 

Noise Monitoring

  1. Noise monitoring during day time and evening time were conducted at the M1a, M2b, M3a, M4b, M5b and M6 on a weekly basis in the reporting period. The Action and Limit level exceedances recorded in the reporting period are listed below. Investigation found that exceedances were not related to the Project. Investigation found that exceedances were not related to the Project.
  2. Thirteen limit level exceedance was recorded at M6 on 29 November 2012, 11, 17 and 27 December 2012, 3, 8, 15, 24 and 29 January 2013, 7, 15, 19 and 26 February 2013. The limit level exceedances were considered as non-project related.
  3. Two limit level exceedances were recorded at M1a on 24 and 29 January 2013. The limit level exceedances were considered as non-project related.

 

Real-time Noise Monitoring

  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.
  2. Real-time noise monitoring at FEHD Hong Kong Transport Section Whitefield Depot and Oil Street Community Centre have been commenced on 5 October 2010 for the filling works of Contract no. HY/2009/11.
  3. Real-time noise monitoring at FEHD Hong Kong Transport Section Whitefield Depot commenced external wall renovation since 1 June 2012
  4. 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.
  5. Limit level exceedance was recorded at RTN2a-Electric Centre on 7 Dec 2012 in the reporting quarter. After checking with contractor, no major noisy construction works were conducted during the time period and the non CWB project construction activities near Electric Centre was considered to be the major source of noise impact. As such, the exceedance was concluded as non-project related.
  6. Limit level exceedances were recorded at RTN2a-Electric Centre during daytime on 31 Jan 2013 and during restricted hours on 5, 11 and 12 Feb 2013. After checking with contractor, on 31 Jan 2013, no noisy construction activities were undertaken during the recorded period. The exceedance was non-continuous and considered to be contributed by the IEC traffic. On 11 and 12 Feb 2013, no construction activities were conducted and the exceedances were considered to be contributed by the Chinese New Year pyrotechnic display and IEC traffic respectively. As such, the exceedances were concluded as non-project related..

 

Air Quality Monitoring

  1. Due to extension of site boundary by contractor of HY/2009/19, location of air monitoring station CMA1b Oil Street Community Liaison Centre has been finely adjusted on 21 April 2012.
  2. Due to lack of electric supply, the 24-hr TSP monitoring at the following stations were rescheduled as below:

CMA2a: from 13 December 2012 to 14 December 2012

CMA3a: from 22 December 2012 to 24 December 2012

from 26 Jan 2013 to 28 Jan 2013

CMA6a: from 1 December 2012 to 3 December 2012

CMA5a: from 26 Feb 2013 to 27 Feb 2013

 

  1. 1hr and 24hr TSP monitoring were conducted at CMA1b, CMA2a, CMA3a, CMA4a, CMA5a and CMA6a in the reporting period. No exceedance was recorded during the reporting period.

 

Water Quality Monitoring

  1. Water quality monitoring was conducted at 14 monitoring stations namely WSD7, WSD19, WSD20, WSD 21, C1, C2, C3, C4e, C4w, C5e, C5w, C7, C8 and C9 during the reporting period.
  2. Due to the blockage of road access to C1 on 15 Dec 2012 during mid-flood, the water quality monitoring was cancelled at C1 on 15 December 2012 during mid-flood.
  3. 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. Due to the blockage of road access to C2 on 7 Jan 2013 during mid-flood, the water quality monitoring at C2 was cancelled on 7 Jan 2013 during mid-flood.
  5. Due to the blockage of road access to C5e and C5w on 7 Jan 2013 during mid-ebb tide and 9, 11, 14 Jan the sample was taken under contingency C5 on 7 Jan 2013 during mid-ebb and 9, 11, 14 Jan during mid-flood and mid-ebb.
  6. Water quality monitoring was cancelled on 12 February 2013 due to closing of construction site within the Chinese New year Holiday
  7. Due to the lack of lighting on the road access to C5e and C5w on 4 Feb 2013 during mid-ebb tide Jan the sample was taken under contingency C5 on 4 Feb 2013 during mid-ebb.
  8. Total 5 DO exceedances, 16 turbidity exceedances and 11 SS exceedances were recorded during mid-flood while 1 DO exceedance, 10 turbidity exceedances and 5 SS exceedances were recorded during mid-ebb in the reporting period. Investigations were found that all were not project-related. The details of the recorded exceedances can be referred to the Section 5.4.
  9. 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. There were 22 DO exceedance during mid-flood and 8 DO exceedances during mid-ebb recorded in this reporting period. Investigation found that all exceedances were not project- related.
  10. 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.
  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 was completed on 6 Feb 2012 water quality monitoring.
  12. Water quality monitoring at WSD10 and WSD15 will be temporary suspended while water quality monitoring at WSD9 and WSD17 was implemented with respect to HK/2009/02 from 8 Feb 12 onwards;
  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.
  14. Based on the safety concern when external fa蓷de refurbishment was conducted by contractor employed by Provident Centre (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 fa蓷de refurbishment work.
  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.
  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.
  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.

 

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. There was no environmental complaint recorded in the reporting period.

 

 

1. Introduction

1.1          Scope of the Report

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-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 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 December 2012 to February 2013

1.2          Structure of the Report

 

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. Project Background

2.1          Background

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 Island Eastern Corridor Link (Register No. AEIAR-041/2001) and Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) have been approved on 31 August 2001 and 11 December 2008 respectively.

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 east-west Connaught Road Central/Harcourt Road / Gloucester Road Corridor (the Corridor) which is currently operating beyond its capacity. The CWB will provide relief to the existing congestion along the Corridor and cater for the anticipated growth of traffic on Hong Kong Island. Without the CWB and its access roads, there will not be sufficient capacity to serve the heavy traffic demands at both strategic and local levels.

 

2.2          Scope of the Project and Site Description

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, Causeway Bay and North Point shorelines. Major land uses include the Hong Kong Convention & Exhibition Centre (HKCEC) Extension, the Wan Chai Ferry Pier, the ex-Wan Chai Public Cargo Working Area (ex-PCWA), the Royal Hong Kong Yacht Club (RHKYC), the Police Officers' Club, the Causeway Bay Typhoon Shelter (CBTS) and commercial and residential developments.

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          Division of the Project Responsibility

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 Hong Kong Convention and Exhibition Centre

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 (Causeway Bay Typhoon Shelter Section)

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 Man Yiu Street and Man Kwong Street

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

 

2.4          Project Organization and Contact Personnel

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

Engineers Representative for WDII

Principal Resident Engineer

Mr. Frankie Fan

2587 1778

2587 1877

Engineers Representative for CWB

Principal Resident Engineer

Mr. Peter Poon

3916 1818

3529 2829

Chun Wo Leader Joint Venture

Contractor under Contract no. HK/2009/01

Joint Venture Board Representative

Mr. PL Yue

2162 9909

2587 1878

Site Agent

Mr. Paul Yu

9456 9819

Deputy Site Agent

Mr Andy Yu

9648 4896

Sub-Agent

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

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Director

Chan Wai Hung

2823 7813

2865 5229

Site Manager

P J Fan

3557 6368

2566 2192

 

 

Contractors Representative

Mr. David Lau

3557 6368

2566 2192

 

 

Head of Construction Manager

Roger Cheung

3557 6371

2566 2192

 

 

Senior Construction Manager

Gene Cheung

3557 6395

2566 2192

Environmental Officer

Mr. Daniel Sin

3557 6215

 

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

Mr. Lee Wai Man

9481 6024

Environmental Supervisor

Clement Pang

9735 9200

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. Cheung Kit Cheung

6909 1555

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          Principal Work and Activities

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

December 2012

January 2013

February 2013

Marine Works (at Wan Chai)

Ÿ Rockfilling of HKCEC3E (East of HKCEC) between CH290 and CH385

Ÿ Lateral supporting temporary pipe pile wall including grouting and tie back installation works

Ÿ Removal of existing seawall and rock armour at Expo Drive East

Ÿ Dredging works for Type 2 sediment beneath Expo Drive East Bridge

Ÿ Installation of precast seawall blocks for caisson and box culvert (Bay 10) installation

Ÿ Fabrication of 3 nos. precast concrete caisson seawall, 1 no. precast concrete box culvert (namely Bay10) and 2 nos. precast discharge outfall in precasting yard at Guangdong, China

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains

Ÿ Thrust block construction for A18B18

Ÿ Reinstatement works for the TST landfall was temporary suspended and the site area was handed over to LCSD

Ÿ Construction of transformer rectifier at new reclaimed area

 

Fresh Watermains, Cooling Watermains and Salt Watermains (On Land)

Ÿ Mainlaying works at Zone B6-1, B6-3, B6-5, B3-1, A1-1, A1-2, A1-4, A1-2A & A1-3A, A2-3D, A3-2A, A3-4A, A3-5A, A3-3C, C1-6 and Run-out of Renaissance Hotel

Ÿ Mainlaying works and partially reinstatement in Zone A1-1 & A1-2

Ÿ Mainlaying works and subsequent reinstatement in Zone A2-3D (Stage 1), A3-2A & Heading No. 1 and A3-4B

Ÿ Mainlaying works at Zone A3-4A, A3-5A and A3-3C

Ÿ Mainlaying and chamber construction works at the traffic island near junction of Convention Avenue and Fenwick Pier Street

Ÿ Mainlaying works in Zone C1-6 of Expo Drive East and TTA Zone C1-4

Ÿ Mainlaying works for proposed sewerage system in Zone B6-1, B6-3 (previously named B1-5A) and B6-5 (previously named B2-1)

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains 23 out of 27 sections of cooling mains pipeline has been satisfied the pressure test.

 

E&M

Ÿ Full commissioning test for Cooling Water Pumping Station P1

Ÿ Site test for all E&M equipment and facilities in Cooling Water Pumping Station P5

Ÿ Preparation works including testing and commissioning of all E&M equipment, BMS system and facilities in Cooling Water Pumping Station P3 and P4

 

Marine Works (at Wan Chai)

Ÿ Rockfilling of HKCEC3E (East of HKCEC) between CH290 and CH385

Ÿ Dredging works for Type 2 sediment near Wan Chai West Ferry Pier

Ÿ Rockfilling at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for subsequent open channel construction

Ÿ Installation of precast seawall blocks for caisson and box culvert (Bay 10) installation

Ÿ Installation of precast units including caisson seawalls, box culvert (namely Bay10) and discharge outfall was commenced and substantially completed

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains

Ÿ Reinstatement works including seawall coping, gully, drawpit and tree transplantation for the TST landfall was resumed.

Ÿ Construction of transformer rectifier at new reclaimed area was completed in reporting month and its cabling work

 

Fresh Watermains, Cooling Watermains and Salt Watermains (On Land)

Ÿ Mainlaying works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A2-3D (Stage 2), A3-3B, A3-4A, A3-5A, A3-3C and C1-4.

Ÿ Mainlaying works and substantially reinstatements in combined Zone A1-1 & A1-2, Zone A1-4 and Run-out of Renaissance Hotel.

Ÿ Mainlaying works at Zone A1-3 (CHWM).

Ÿ Mainlaying works at Zone A1-2 (CHWM), Zone A2-3D (Stage 2) and A3-3B.

Ÿ Mainlaying works at Zone A3-4A and A3-5A.

Ÿ Mainlaying works at Zone A3-3C.

Ÿ Mainlaying and chamber construction works at the traffic island near junction of Convention Avenue and Fenwick Pier Street.

Ÿ The preparation works (including exposure of installed gate valve and repair of gate valve) at Convention Avenue for facilitating the changeover of cooling mains system of HKAPA.

Ÿ Mainlaying works at Zone C1-4.

Ÿ Mainlaying works for proposed sewerage system in Zone B6-1, B6-3 (previously named B1-5A) and B6-5 (previously named B2-1)

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains 25 out of 27 sections of cooling mains pipeline has been satisfied the pressure test.

 

Tunnel Works

Ÿ Backfilling works on top of SCL protection works.

Ÿ Pre-bored H piling works for the proposed CWB and altogether 10 nos. and 9 nos. of pre-bored H piles.

Ÿ Pre-drilling works for CWB (Stage 2).

Ÿ Ground treatment works for proposed CWB diaphragm wall.

Ÿ Plant Mobilization for diaphragm wall construction works at Stage 2.

 

E&M

Ÿ Full commissioning test for Cooling Water Pumping Station P1

Ÿ Site test for all E&M equipment and facilities in 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 Rockfilling at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for subsequent open channel construction.

Ÿ Installation of precast block seawall (Type 1, 2 & 3).

Ÿ Construction of mass concrete coping for new seawall.

 

Cross-Harbour Watermains Installation (CHA & CHB) and Marine Works (at TST)

Ÿ Rockfilling and rock protection to cross-harbour watermains.

Ÿ Reinstatement works including seawall coping, gully, drawpit and tree transplantation for the TST landfall.

Ÿ Flushing to the cross-harbour water main (including CHA, CHB, CHE & CHF).

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 B6-1, B6-3, B6-5, A1-2A & A1-3A, A3-3C and C1-2 .

Ÿ Mainlaying works and substantially reinstatements in Zone A1-2, A2-3D (Stage 2), C1-4 and A3-4A.

Ÿ Grouting, pipe connection and reinstatement works in combined Zone A1-2A & A1-3A.

Ÿ Grouting, pipe connection and reinstatement works in Zone A1-3B.

Ÿ Mainlaying works and substantially reinstatements in Zone A3-5A, A3-3B and footpath of Fenwick Pier Street.

Ÿ Preparation works at Zone A3-3C for subsequent connection works.

Ÿ The preparation works (including exposure of installed gate valve and repair of butterfly valve) at Convention Avenue for facilitating the changeover of cooling mains system of HKAPA.

Ÿ The preparation works (including exposure of installed gate valve and repair of gate valve) at Convention Avenue for facilitating the changeover of cooling mains system of SOC.

Ÿ Mainlaying works at Zone C1-2.

Ÿ Mainlaying works and coring works at external wall of seawater pumping stations for proposed sewerage system in Zone B6-1.

Ÿ Mainlaying works and substantially reinstatements in Zone B6-3 (previously named B1-5A) and B6-5 (previously named B2-1).

Ÿ Final cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains.

Ÿ CCTV inspection for cross-harbour watermains (land pipe at Wan Chai).

Ÿ Pressure test for cross harbour watermains (whole length of land pipes in Wan Chai).

Ÿ Trench excavation for HEC and PCCW cabling works connected to the proposed transformer rectifier at new reclaimed area.

 

Tunnel Works

Ÿ Backfilling works on top of SCL protection works.

Ÿ Pre-bored H piling works for the proposed CWB stage 1b

Ÿ Pre-drilling works for CWB (Stage 2).

Ÿ Diaphragm wall construction works at Stage 2.

Ÿ Removal of remaining guide wall along Convention Avenue.

 

E & M

Ÿ Full commissioning test for Cooling Water Pumping Station P1.

Ÿ Site test for all E&M equipment and facilities in Cooling Water Pumping Station P5.

Ÿ Initial 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

December 2012

January 2013

February 2013

Ÿ Concreting the slab with hanger wall for planting area (+13.55mPD) between G.L.3-6/B-C & E-F on Observation Deck Level (+14.65mPD)

Ÿ Concreting the base slab and wall of sprinkler water tank machine room and the slab of Machine Room

Ÿ Installation of concrete block wall for store room 1 and room 2 on Level 1

Ÿ Erecting the wall stem formwork for caisson seawall precast unit 2X on flat-top barge

Ÿ Modification work of PTI at Expo Drive East

Ÿ Modification work of bus station at Expo Drive East near EVA

Ÿ Breaking up the existing covered walkway footing at Expo Drive East

Ÿ Rectification works at bending block of cooling mains

Ÿ E&M works and ABWFs installation at WSD Salt Water Pumping Station

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 3 to Bay 5

Ÿ Concreting of the structure at salt water intake culvert Bay 10 and Bay 11 at WCR1

Ÿ Steel fixing of the shaft of Bay 2a in salt water intake seaside cofferdam

Ÿ Breaking the existing concrete road slab for DN800 salt water mains at Ex-pet garden near gate 1

Ÿ Installation the shoring to trial pit of the permanent connection point to existing DN 600 water main at Hung Hing Road was commenced

Ÿ Installation of precast concrete short pipe extended from the existing 1800 drainage at Box Culvert N landside

 

Ÿ Modification work of PTI at Expo Drive East.

Ÿ Concreting the retaining wall base slab of Bay1, Bay 2 and Bay 5 at Expo Drive East.

Ÿ Rectification works at bending block of cooling mains.

Ÿ E&M works and ABWFs installation at WSD Salt Water Pumping Station.

Ÿ Concreting infill mass concrete at both sides and concreting 1m width x 300mm high mass for cover M.J. at Bay 9 to Bay 11 in salt water intake landside cofferdam.

Ÿ Backfilling grade 200mm rock material in the trench at Bay 6 to Bay 8 in salt water intake landside cofferdam.

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 3 to Bay 5.

Ÿ The shafts of Intake chamber No.1 and No.2 for Bay 2A in salt water intake seaside cofferdam were casted the 2nd layer of the horizontal struts.

Ÿ Placing concrete for bend blocks btw CHS8A 150-165 at Ex-pet garden near new Gate No.2.

Ÿ Installation the shoring to trial pit of the permanent connection point to existing DN 600 water main at Hung Hing Road.

Ÿ Saw cutting of southern diaphragm wall for the connection between existing drainage and Bay 1 of box culvert N1.

Ÿ Laying 1800mm dia. concrete pipe for the connection between existing drainage and Bay 1 of box culvert N1.

Ÿ Erecting formwork for concrete surround for concrete pipe.

Ÿ Concreting of columns (total 6nos.) from M/F (+11.15mPD) to Observation Deck Level (+14.65mPD) and Slab with beam between G.L.1-3/B-F on Level 2 (+7.65mPD).

Ÿ Concreting of columns (total 9nos.) from Level 2 (+7.65mPD) to Observation Deck Level (+14.65mPD).

Ÿ Concreting of portion 2 for column C2C from +11.65mPD to +13.90mPD up to Observation Deck Level (+14.65mPD).

Ÿ Concreting of portion 1 for column C2E from +7.65mPD to +11.65mPD up to Observation Deck Level (+14.65mPD).

Ÿ Steel fixing and Formwork erection to Observation Deck Level at from GL 3-8 & 9-15.

Ÿ Installation of concrete block wall for store room 1 and room 2 on Level 1.

Ÿ Placing concrete of the final portion for precast scission seawall 2X.

Ÿ Modification work of PTI at Expo Drive East.

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ Pressure tests and the necessary rectification works for the installed cooling watermains.

Ÿ Backfilling for trench at the junction between Tonnochy Road and Harbour Road.

Ÿ E&M works and their T&C in Cooling Water Pumping Stations P7, P8 and P9.

Ÿ Wet Tests at WSD Salt Water Pumping Station.

Ÿ Backfilling grade 200 mm rock materials from Bay 6 to Bay 11 in salt water intake landside cofferdam.

Ÿ Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert Bay 19B to Bay 24.

Ÿ Diver work for excavation down to formation level at Bay 1B in salt water intake seaside cofferdam.

Ÿ Mainlaying works for DN800 salt watermains (CHS8A) at Ex-Pet Garden.

Ÿ Works for the Outfall B had been and the dye test.

Ÿ Switching over works for sewage to WCE PTW.

Ÿ RC structures for the proposed Ferry Pier.

Ÿ Construction of eastern concrete staircase to Observation Deck Level.

Ÿ Concreting of base slab with stem wall for PT2 & PT3 at Level 1 (under +4.15mPD).

Ÿ Installation of concrete block wall for store room 1 and store room 2 on Level 1.

Ÿ Application of protective coating to proposed precast caisson seawall 2X

Ÿ Eastern Bulkhead Wall, Panel BHP3, BHP7 and BHP9 were cast (3 out of 13 panels) and excavation for Panel BHP5.

 

 

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

December 2012

January 2013

February 2013

Ÿ TZ1 and TS2 reclamation works

Ÿ Formation of temporary seawall at TS2

Ÿ TZ1 and TS2 reclamation works

Ÿ Formation of temporary seawall at TS2

 

Ÿ Removal of eastern breakwater of CBTS

 

 

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

December 2012

January 2013

February 2013

Ÿ Sheet piling

Ÿ Platform Disassembly

Ÿ Bored pile casing cutting

Ÿ Grouting

Ÿ Disassembly of staging platform

Ÿ Pile case cutting

Ÿ Sheet pile installation

Ÿ Dredging

Ÿ Construction of pre-cast unit in mainland China

Ÿ Sheet Piling Works

Ÿ Utility Diversion Works

Ÿ Precast Unit Box Construction (mainland China)

 

 

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

December 2012

January 2013

February 2013

Ÿ Marine bored piling

Ÿ Construction works for Box Culvert T

Ÿ Construction of 1500f drainage pipe

Ÿ Road works at Watson Road

Ÿ Bored piling (Land)

Ÿ Pre-drilling works for bored pile and Diaphragm wall

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 cap & column (Land)

Ÿ Dismantling of marine platform

Ÿ Demolition of parapet at IEC Link

Ÿ Construction of Pile caps & columns (Marine)

Ÿ Cut & Cover Tunnel sheet piling works and installation of King Post

Ÿ Construction of dewatering well for Cut & Cover Tunnel

Ÿ Road works at Watson Road

Ÿ Bored piling (Land)

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 will continue

Ÿ ELS for Cut & Cover Tunnel will continue

 

 

2.5.6.     Implementation status of the recommended mitigation measures during this reporting period is presented in Appendix 2.1.

3. Monitoring Requirements

3.1.          Noise Monitoring

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

City Garden

M6

HK Baptist Church Henrietta Secondary School

 

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.

3.2.                Air Monitoring

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

Causeway Bay Community Centre

Causeway Bay

CMA3a

CWB PRE Site Office *

Causeway Bay

CMA4a

Society for the Prevention of Cruelty to Animals

Wan Chai

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

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    Water Quality Monitoring

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 Victoria Harbour. The proposed water quality monitoring stations of the Project are shown in Table 3.4 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.4 Marine Water Quality Stations for Water Quality Monitoring

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD7

Kowloon South

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

Quarry Bay

839790.3

817032.2

WSD19

Sheung Wan

833415.0

816771.0

WSD20

Kennedy Town

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 Chai Tower and Great Eagle Centre (Eastern)

835932.8

815888.2

C4w

Wan Chai Tower and Great Eagle Centre (Western)

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

Windsor House

837193.7