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, fep-05/356/2009,

 Fep-06/356/2009 and FEP-07/356/2009

 

Quarterly Environmental Monitoring
and Audit Report

 

- September 2013 to November 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:

 

 

18 December 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. 19

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. 36

4.4.       Water Monitoring Results. 38

4.5.       Waste Monitoring Results. 43

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. 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 4.15        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 4.21        Details of Waste Disposal for Contract no. HK/2010/06

Table 4.22        Details of Waste Disposal for Contract no. HY/2009/19

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 – September 2013 to November 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, FEP-05/356/2009, FEP-06/356/2009 and FEP-07/356/2009. This report presents the environmental monitoring and audit findings and information during the period from September 2013 to November 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

September 2013

October 2013

November 2013

Marine Works (at Wan Chai)

Ÿ Rockfilling at Area 3 (East of Expo Bridge). Rockfilling work in accordance with proposed alignment up to +2.5mPD. Rock materials from HATS.

Ÿ Bottom slab of Bay 8. Preparation work for blinding layer at Bay 9.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue. 5 nos. pre-bored H-piles were installed.

Ÿ Pre-drilling for D-walls at Area 8 (interface wall, bulkhead). Installation of sleeve pipe for predrilling work in order to remove the G75 rock before site investigation.

Ÿ Ground treatment work and guide wall construction. Formation for soil platform. Plate load test.

 

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

Ÿ The stage 2 & 3 connection. The stage 4 capping works for XHWM.

 

XHWM, Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at West Foyer of HKCEC. Planter reinstatement, kerbworks, hard paving. All reinstatement works.

Ÿ Cooling main works in Zone C1-2. Cooling main works along Expo Drive East and Fleming Road..

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3. 

Ÿ Temporary ducting and cabling works at junction between Expo Drive East and Expo Drive Central.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220). 45 nos. pre-bored H-piles had been excavated. 32 nos. pre-bored H-piles were grouted i.e. 22 nos. drilled and 26 nos. grouted.

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206.

Ÿ Demolition of the Promenade Deck.

Ÿ ELS work at bottom-up area. Fabrication of steel strutting members. Installation of ELS.

 

Marine Works (at Wan Chai)

Ÿ Rock filling up to +4.2 mPD for D-wall construction.

Ÿ Bottom slab of Bay 8. Preparation work for blinding layer at Bay 9. Water leakage was found and re-grouting.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue.

Ÿ Pre-drilling for D-walls at Area 8 (interface wall, bulkhead).

Ÿ Ground treatment work and guide wall construction.

 

XHWM, Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at HKCEC north & northwest. Reinstatement works at West Foyer of HKCEC. Planter reinstatement, kerbworks, hard paving and all other minor reinstatement works.

Ÿ Cooling main works in Zone C1-2. Cooling main works along Expo Drive East and Fleming Road.

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3. 

Ÿ Relocation works of fire hydrant in Zone X2-1.

Ÿ Temporary ducting and cabling works at junction between Expo Drive East and Expo Drive Central.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220).

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206.

Ÿ Demolition of the Promenade Deck. Installation of sheet pile for demolition of P5 Pump house.  

Ÿ ELS work at bottom-up area. Fabrication of steel strutting members. Installation of ELS.

 

Marine Works (at Wan Chai)

Ÿ Further rock filling from HATS at East side in order to extend the work area.

Ÿ Concreting at base slab of bay 8 and bay 9. Wall and roof slab construction work and he box culvert.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue.

Ÿ First panel at temporary bulk head wall and C1/C2 interface wall

Ÿ Installation of end plates to block the existing intakes P7 & P9.

Ÿ Outfall construction for discharge pipes at Expo Drive East.

 

Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at HKCEC north & northwest.

Ÿ Cooling main laying works along Expo Drive East in Zone C2-1 and C1-3.

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220).

Ÿ Installation of pre-bored H-pile in CWB Stage 3.

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206. Further filling to P7 & P9.

Ÿ Demolition of the Promenade Deck. Installation of sheet pile for demolition of P5 Pump house and the works for tie-back.  

Ÿ Installation of ELS at first layer for Stage 1.

 

  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

September 2013

October 2013

November 2013

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ The outstanding VSD parts for P7 Cooling Water Pumping Station reinstalled .

Ÿ The 60 days for T&C period of P7 cooling water system. The T&C period of P9.

Ÿ The temporary EVA construction for P7, P8 and P9 Cooling Water Pumping Stations.

Ÿ Rectification works for P8 discharge mains near Gate No.1

Ÿ 60-Day T&C for P9 Cooling Water Pumping Station.

Ÿ Installation of Aeration and Chlorination Pipes at Salt Water Intake Culvert Bay 2 to Bay 5.

Ÿ Temporary discharge pipe near CHS8A 160m.

Ÿ Trench excavation and ELS installation for the Y-section connecting with the existing DN600 watermains at Hung Hing Road.  Pipe fabrication for the Y-Section.

Ÿ Additional horizontal gate valve chamber under VO No.114 located at CHS8A230m.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ The base slab, wall and top slab at Bay 5.

Ÿ Blinding layer for 1050mm FRP pipe near Bay 4 and Bay 5.

Ÿ The access shafts of inspection manholes IM-01 and IM-02 at Bay 5.

Ÿ Construction of stoplog chamber extension SLO-01, SLO-02 and SLO-03 at Bay 6. The stoplog installation.

Ÿ Formwork erection and rebar fixing for the 6nos. Temporary Covered Walkway in the vicinity of Ferry Pier. 

Ÿ Interface coring and shear pin installation for the Eastern Bulkhead Wall.

Ÿ The road modification works along Wan Shing Street for HHR Flyover Diversion (Stage 1).

Ÿ Pavement works at Wan Shing Street next to ECO gas infill station.

Ÿ Trimming of lifted-in sheetpile in front of SPCA’s Guard Room.

Ÿ Breaking up the existing carriageway next to SPCA’s Main Vehicular Access.

Ÿ 90.7% of seawall blocks installation at WCR4/TWCR4 (844nos. out of 936nos.).

Ÿ 95% of geotextile at WCR4/TWCR4 area

 

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ 60-Day Trial Operation for P7 Cooling Water Pumping Station.

Ÿ Fire Certificate for all P7, P8 and P9 Cooling Water Pumping Stations.

Ÿ Leakage rectification works for P8 discharge mains near Gate No.1.

Ÿ The DN150 washout pipe testing under VO No.114 located at CHS8A230m. All necessary fittings and ready for gate valve installation by WSD.

Ÿ Pressure test to Y-Section for connection with the existing DN600 pipe at Hung Hing Road had been completed.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ Bulkhead Removal at Bay 5 and Bay 6.

Ÿ The guiderail installation at stoplog chambers at Bay 6.

Ÿ The remedial works at Bay 3 and Bay 6.

Ÿ Revised certified ELS design for modifying the existing ELS for the construction of Manhole No. FRP-N-MH2.

Ÿ The 6nos. Temporary Covered Walkway in the vicinity of Ferry Pier .

Ÿ Installation of base plates for seatings at Observation Deck Level of Ferry Pier.

Ÿ Remedial works for the Eastern Bulkhead Wall.

 

Hung Hing Road Flyover Diversion (Stage 1):

 

Ÿ The road modification works along Wan Shing Street for HHR Flyover Diversion (Stage 1).

Ÿ Pavement works at Wan Shing Street next to SPCA’s Main Vehicular Access.

Ÿ Backfilling works at Wan Shing Street next to HEC station entrance. Pavement works.

Ÿ Sorted public fill at WCR4/TWCR4.

Ÿ Seawall blocks installation at WCR4/TWCR4.

Ÿ Geotextile at WCR4/TWCR4 area..

 

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ Modification of road junction between Expo Drive and Expo Drive East.

Ÿ Mainline of P8 discharge mains was tested. The leakage portion near Gate No.1 had been fixed.

Ÿ The 60-day trial operation for P7 Cooling Water Pumping Station. 

Ÿ Rectification works of the special movement joint for P8 discharge main at CHBH152m.  Defected special movement joint was delivered off site for repairing works.

Ÿ Backfilling between CHAI 80 and CHAI 160, and CHAG 150m and CHAG 210m (Except the combined area).

Ÿ Installation of 3 standpipes and the Water Tightness Test of Salt Water Intake Culvert.

Ÿ For DN800 pipe, horizontal gate valve installation. Beforehead, epoxy coating and flange adaptor installation.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ Stoplog installation at Bay 6 of Box Culvert N1.

Ÿ The remedial works at Bay 6 of Box Culvert N1.

Ÿ Modifying the existing ELS for the construction of Manhole No. FRP-N-MH2.

Ÿ DSD had accepted the Box Culvert N1 Bay 1 to Bay 6.  Another site inspection for stoplog removal trial was conducted with DSD.

Ÿ The Wall of FRP-N-MH2 construction and beforehead, the 1050mm FRP pipe Installation between Bay 4 and Bay 5.

Ÿ Water infilling to Box Culvert N1 for subsequent waternightness test. Remedial works to stop leakage at 1050mm FRP pipe.

Ÿ Backfilling for 1050mm FRP installation.

Ÿ Remaining connection between FRP-N-MH2 and SLO-03.

Ÿ Excavation to the formation level for the Temporary Covered Walkway footing (GL5) in the vicinity of Ferry Pier.  Sand replacement test.

Ÿ Re-grouting works for the Eastern Bulkhead Wall.

Ÿ Proof drilling for re-grouting works for the Eastern Bulkhead Wall.

 

Hung Hing Road Flyover Diversion (Stage 1):

 

Ÿ Pavement works at Wan Shing Street next to HEC station entrance.

Ÿ All road markings and traffic sign installation.

Ÿ Implementation of HHR Flyover Diversion (Stage 1).

 

WCR4/TWCR4 Reclamation:

 

Ÿ Public fill at WCR4/TWCR4.

Ÿ Seawall blocks installation at WCR4/TWCR4.

Ÿ Geotextile at WCR4/TWCR4 area.

 

 

  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

September 2013

October 2013

November 2013

Ÿ Construction of EVA

 

Ÿ Construction of EVA

 

Ÿ Construction of EVA

Ÿ Maintenance dredging

 

 

  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

September 2013

October 2013

November 2013

Ÿ Sheet piling works

 

Ÿ Sheet piling works

 

Ÿ Sheet piling works

 

 

  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

September 2013

October 2013

November 2013

Ÿ D-wall and Barrette Construction

Ÿ Construction works for Box Culvert T1

Ÿ Backfill works for Box Culvert U1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

 

 

Ÿ D-wall and Barrette Construction

Ÿ Removal of strut at ELS

Ÿ Construction works for Box Culvert T1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ ELS and Cut & Cover Tunnel

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

Ÿ Demolition of parapet at IEC link

Ÿ Construction of King Post at ELS

 

 

Ÿ D-wall and Barrette Construction

Ÿ Removal of strut at ELS will commence

Ÿ Construction works for Box Culvert T1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ ELS, EVB and Cut & Cover Tunnel

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

Ÿ Demolition of parapet at IEC link

Ÿ Construction of King Post at ELS

 
  1. Contract no. HK/2012/08 was commenced on 5 March 2013. During this reporting period, the principal work activities for Contract no. HK/2012/08 are summarized as below:

Table VI     Principal Work Activities for Contract no. HK/2012/08

September 2013

October 2013

November 2013

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Demolition of the existing Expo Drive West Bridge

 

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Preparation works for abandoning watermains at Lung King Street

 

 

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Preparation works for abandoning watermains at Lung King Street

Ÿ Seawall rock mound formation

 

 

  1. Contract no. HY/2010/08 was commenced on 21 March 2013. During this reporting period, no principal work activities for Contract no. HK/2012/08.

 

 

 

 

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. Nine limit level exceedances were recorded at M6 on 6, 10, 17 and 26 September 2013, 3 and October 2013, 5, 18 and 26 November 2013. The limit level exceedances were considered as non-project related.
  3. Due to adverse weather condition, the noise monitoring at the following stations were rescheduled:

M2b: From 3 September 2013 to 6 September 2013

M6:   From 3 September 2013 to 6 September 2013

 

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. No project related exceedance was recorded in September, October and November reporting month at RTN2a-Hong Kong Electric Centre during this reporting quarter.

 

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. The location ID of air monitoring station CMA1b was updated as Oil Street Site Office in April 2013.
  3. Due to interruption of electric supply, the 24-hr TSP monitoring at the following stations were rescheduled as below:

CMA3a: from 16 October 2013 to 17 October 2013

CMA5a: from 14 November 2013 to 15 November 2013.

  1. Due to the hoisting of Gale warning signal no.8, the 24hr TSP monitoring events on was rescheduled from 23 September 2013 to 24 September 2013.
  2. 1hr and 24hr TSP monitoring were conducted at CMA1b, CMA2a, CMA3a, CMA4a, CMA5a and CMA6a in the reporting period.
  3. The odour patrol along the odour route with 7 sniffing locations was conducted by a qualified odour patrol member on 3 and 17 September 2013 at the concerned hours (afternoon for higher daily temperature).No Action and Limit Level was recorded during this reporting month.

 

 

Water Quality Monitoring

  1. Water quality monitoring was conducted at 11 monitoring stations namely WSD9, WSD17, WSD19, WSD 21, C1, C7, P1, P3, P4, P5 and RW21-P789 during the reporting period.
  2. Due to the Amber Rainstorm Warning was hoisted on 4 September 2013, water quality monitoring at ebb tide was cancelled.
  3. Due to the Gale warning signal no.8 was hoisted on 23 September 2013, water quality monitoring at flood tide were cancelled.
  4. Due to obstruction by construction material on 31 August 2013, water quality monitoring at water quality monitoring station P4 during flood tide was cancelled.
  5. Due to damaged geotextile enclosing the silt screen on 15 October 2013, water quality monitoring at P3 during flood tide was cancelled.
  6. Action and Limit level of water quality monitoring was transited from wet season to dry season from 1 October 2013.
  7. Due to out of order of the lighting system on 4 November 2013, water quality monitoring at RW21-P789 during flood tide was cancelled.
  8. Since marine dredging works was commenced under contract HK/2012/08. The respective water quality monitoring station WSD19, P1, P3, P4, and P5 have been started under contract HK/2012/08 September 2013.
  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.
  10. 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.

xxxiii.        Total 17 DO exceedances, 45 turbidity exceedances and 15 SS exceedances were recorded during mid-flood while 21 DO exceedance, 29 turbidity exceedances and 8 SS exceedances were recorded during mid-ebb in the reporting period. All the exceedances were concluded as non-project-related. The details of the recorded exceedances can be referred to the Section 5.4.

  1. 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 46 DO exceedance during mid-flood and 41 DO exceedances during mid-ebb recorded in this reporting period.  Investigation found that all exceedances were not project- related.
  2. 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. 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.
  4. 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;
  5. 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.
  6. Due to the marine piling under Contract no. HY/2009/19 was completed on 4 March 2013, the temporary suspension of impact water quality monitoring at C8 and C9 from 4 March 2013 have been monitored for 4-week period after the completion of marine works to confirm no water deterioration.
  7. Based on the safety concern when external façade 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 façade refurbishment work.
  8. 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.
  9. 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.
  10. 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-02/356/2009, FEP-03/356/2009, FEP-04/356/2009, FEP-05/356/2009, FEP-06/356/2009 and FEP-07/356/2009  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 September 2013 to November 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

(Completed)

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

(Completed)

HY/2009/17

Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced piling works.

DP1

5 October 2010

(Completed)

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

5 March 2013

 

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

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

Mr. PL Yue

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

Fan Chun Wai

6487 4488

Chun Wo – CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Project Manager

Mr. David Lau

3658-3022

2827 9996

Quality & Environmental Manager (Environmental Officer)

Mr. C.P. Ho

9191 8856

China State Construction Engineering (HK) Ltd.

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. Eric Yip

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

China State-

Leader JV

Contractor

under Contract

no. HK/2012/08

Project Director

Andrew Tse

9137 1811

2877 1522

 

 

Project Manager

Victor Wu

9193 8871

 

 

 

Deputy Project Manager

George Cheung

9268 1918

 

 

 

Site Agent

Paul Lui

9095 7922

 

 

 

Environmental Officer

James Ma

9130 9549

 

 

 

Environmental Supervisor

Ching Man, Chan

6050 4919

 

China State

 

Contractor

under Contract

no. HY/2010/08

Project Director

Cheung Kit Cheung

3557 6399

2566 8061

 

 

 

Project Manager

Chan Ying Lun

9812 0592

 

 

 

Deputy Project Manager

Chris Leung

3467 4299

 

 

 

Site Agent

Dave Chan

3467 4277

 

 

 

Environmental Officer

C.M. Wong

3557 6464

 

 

 

Environmental Supervisor

Louis Lam Tsz Kwan

3557 6470

 

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

September 2013

October 2013

November 2013

Marine Works (at Wan Chai)

Ÿ Rockfilling at Area 3 (East of Expo Bridge). Rockfilling work in accordance with proposed alignment up to +2.5mPD. Rock materials from HATS.

Ÿ Bottom slab of Bay 8. Preparation work for blinding layer at Bay 9.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue. 5 nos. pre-bored H-piles were installed.

Ÿ Pre-drilling for D-walls at Area 8 (interface wall, bulkhead). Installation of sleeve pipe for predrilling work in order to remove the G75 rock before site investigation.

Ÿ Ground treatment work and guide wall construction. Formation for soil platform. Plate load test.

 

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

Ÿ The stage 2 & 3 connection. The stage 4 capping works for XHWM.

 

XHWM, Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at West Foyer of HKCEC. Planter reinstatement, kerbworks, hard paving. All reinstatement works.

Ÿ Cooling main works in Zone C1-2. Cooling main works along Expo Drive East and Fleming Road..

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3. 

Ÿ Temporary ducting and cabling works at junction between Expo Drive East and Expo Drive Central.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220). 45 nos. pre-bored H-piles had been excavated. 32 nos. pre-bored H-piles were grouted i.e. 22 nos. drilled and 26 nos. grouted.

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206.

Ÿ Demolition of the Promenade Deck.

Ÿ ELS work at bottom-up area. Fabrication of steel strutting members. Installation of ELS.

 

Marine Works (at Wan Chai)

Ÿ Rock filling up to +4.2 mPD for D-wall construction.

Ÿ Bottom slab of Bay 8. Preparation work for blinding layer at Bay 9. Water leakage was found and re-grouting.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue.

Ÿ Pre-drilling for D-walls at Area 8 (interface wall, bulkhead).

Ÿ Ground treatment work and guide wall construction.

 

XHWM, Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at HKCEC north & northwest. Reinstatement works at West Foyer of HKCEC. Planter reinstatement, kerbworks, hard paving and all other minor reinstatement works.

Ÿ Cooling main works in Zone C1-2. Cooling main works along Expo Drive East and Fleming Road.

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3. 

Ÿ Relocation works of fire hydrant in Zone X2-1.

Ÿ Temporary ducting and cabling works at junction between Expo Drive East and Expo Drive Central.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220).

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206.

Ÿ Demolition of the Promenade Deck. Installation of sheet pile for demolition of P5 Pump house.  

Ÿ ELS work at bottom-up area. Fabrication of steel strutting members. Installation of ELS.

 

Marine Works (at Wan Chai)

Ÿ Further rock filling from HATS at East side in order to extend the work area.

Ÿ Concreting at base slab of bay 8 and bay 9. Wall and roof slab construction work and he box culvert.

Ÿ Fabrication work for steel bridge on the top of temporary open channel along Convention Avenue.

Ÿ First panel at temporary bulk head wall and C1/C2 interface wall

Ÿ Installation of end plates to block the existing intakes P7 & P9.

Ÿ Outfall construction for discharge pipes at Expo Drive East.

 

Cooling Watermains, Salt Watermains and Sewer (On Land)

Ÿ Design of the additional anode between the new pipe and existing pipeline.

Ÿ Reinstatement works at HKCEC north & northwest.

Ÿ Cooling main laying works along Expo Drive East in Zone C2-1 and C1-3.

Ÿ Salt watermain laying works along west of Convention Avenue, J/O Convention Avenue & Fenwick Per Street, Harbour Road in Zone A3-5C, A3-1, A3-5B, A2-4A, A5-5 and A5-2. Salt watermain laying works along west of Convention Avenue near Grand Hyatt Hotel in Zone A1-5C, A1-5A3.

 

Tunnel Works

Ÿ Installation of pre-bored H-pile in CWB Stage 2 Atrium Link (from CH120 to CH220).

Ÿ Installation of pre-bored H-pile in CWB Stage 3.

Ÿ Construction of the Common D-wall.

Ÿ Filling of the existing open water channel from CH100 to CH206. Further filling to P7 & P9.

Ÿ Demolition of the Promenade Deck. Installation of sheet pile for demolition of P5 Pump house and the works for tie-back.  

Ÿ Installation of ELS at first layer for Stage 1.

 

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

September 2013

October 2013

November 2013

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ The outstanding VSD parts for P7 Cooling Water Pumping Station reinstalled .

Ÿ The 60 days for T&C period of P7 cooling water system. The T&C period of P9.

Ÿ The temporary EVA construction for P7, P8 and P9 Cooling Water Pumping Stations.

Ÿ Rectification works for P8 discharge mains near Gate No.1

Ÿ 60-Day T&C for P9 Cooling Water Pumping Station.

Ÿ Installation of Aeration and Chlorination Pipes at Salt Water Intake Culvert Bay 2 to Bay 5.

Ÿ Temporary discharge pipe near CHS8A 160m.

Ÿ Trench excavation and ELS installation for the Y-section connecting with the existing DN600 watermains at Hung Hing Road.  Pipe fabrication for the Y-Section.

Ÿ Additional horizontal gate valve chamber under VO No.114 located at CHS8A230m.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ The base slab, wall and top slab at Bay 5.

Ÿ Blinding layer for 1050mm FRP pipe near Bay 4 and Bay 5.

Ÿ The access shafts of inspection manholes IM-01 and IM-02 at Bay 5.

Ÿ Construction of stoplog chamber extension SLO-01, SLO-02 and SLO-03 at Bay 6. The stoplog installation.

Ÿ Formwork erection and rebar fixing for the 6nos. Temporary Covered Walkway in the vicinity of Ferry Pier. 

Ÿ Interface coring and shear pin installation for the Eastern Bulkhead Wall.

Ÿ The road modification works along Wan Shing Street for HHR Flyover Diversion (Stage 1).

Ÿ Pavement works at Wan Shing Street next to ECO gas infill station.

Ÿ Trimming of lifted-in sheetpile in front of SPCA’s Guard Room.

Ÿ Breaking up the existing carriageway next to SPCA’s Main Vehicular Access.

Ÿ 90.7% of seawall blocks installation at WCR4/TWCR4 (844nos. out of 936nos.).

Ÿ 95% of geotextile at WCR4/TWCR4 area

 

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ 60-Day Trial Operation for P7 Cooling Water Pumping Station.

Ÿ Fire Certificate for all P7, P8 and P9 Cooling Water Pumping Stations.

Ÿ Leakage rectification works for P8 discharge mains near Gate No.1.

Ÿ The DN150 washout pipe testing under VO No.114 located at CHS8A230m. All necessary fittings and ready for gate valve installation by WSD.

Ÿ Pressure test to Y-Section for connection with the existing DN600 pipe at Hung Hing Road had been completed.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ Bulkhead Removal at Bay 5 and Bay 6.

Ÿ The guiderail installation at stoplog chambers at Bay 6.

Ÿ The remedial works at Bay 3 and Bay 6.

Ÿ Revised certified ELS design for modifying the existing ELS for the construction of Manhole No. FRP-N-MH2.

Ÿ The 6nos. Temporary Covered Walkway in the vicinity of Ferry Pier .

Ÿ Installation of base plates for seatings at Observation Deck Level of Ferry Pier.

Ÿ Remedial works for the Eastern Bulkhead Wall.

 

Hung Hing Road Flyover Diversion (Stage 1):

 

Ÿ The road modification works along Wan Shing Street for HHR Flyover Diversion (Stage 1).

Ÿ Pavement works at Wan Shing Street next to SPCA’s Main Vehicular Access.

Ÿ Backfilling works at Wan Shing Street next to HEC station entrance. Pavement works.

Ÿ Sorted public fill at WCR4/TWCR4.

Ÿ Seawall blocks installation at WCR4/TWCR4.

Ÿ Geotextile at WCR4/TWCR4 area..

 

Ÿ Modification of existing covered walkway along Expo Drive East.

Ÿ Modification of road junction between Expo Drive and Expo Drive East.

Ÿ Mainline of P8 discharge mains was tested. The leakage portion near Gate No.1 had been fixed.

Ÿ The 60-day trial operation for P7 Cooling Water Pumping Station. 

Ÿ Rectification works of the special movement joint for P8 discharge main at CHBH152m.  Defected special movement joint was delivered off site for repairing works.

Ÿ Backfilling between CHAI 80 and CHAI 160, and CHAG 150m and CHAG 210m (Except the combined area).

Ÿ Installation of 3 standpipes and the Water Tightness Test of Salt Water Intake Culvert.

Ÿ For DN800 pipe, horizontal gate valve installation. Beforehead, epoxy coating and flange adaptor installation.

Ÿ The remaining ABWF works and boundary wall in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

Ÿ Stoplog installation at Bay 6 of Box Culvert N1.

Ÿ The remedial works at Bay 6 of Box Culvert N1.

Ÿ Modifying the existing ELS for the construction of Manhole No. FRP-N-MH2.

Ÿ DSD had accepted the Box Culvert N1 Bay 1 to Bay 6.  Another site inspection for stoplog removal trial was conducted with DSD.

Ÿ The Wall of FRP-N-MH2 construction and beforehead, the 1050mm FRP pipe Installation between Bay 4 and Bay 5.

Ÿ Water infilling to Box Culvert N1 for subsequent waternightness test. Remedial works to stop leakage at 1050mm FRP pipe.

Ÿ Backfilling for 1050mm FRP installation.

Ÿ Remaining connection between FRP-N-MH2 and SLO-03.

Ÿ Excavation to the formation level for the Temporary Covered Walkway footing (GL5) in the vicinity of Ferry Pier.  Sand replacement test.

Ÿ Re-grouting works for the Eastern Bulkhead Wall.

Ÿ Proof drilling for re-grouting works for the Eastern Bulkhead Wall.

 

Hung Hing Road Flyover Diversion (Stage 1):

 

Ÿ Pavement works at Wan Shing Street next to HEC station entrance.

Ÿ All road markings and traffic sign installation.

Ÿ Implementation of HHR Flyover Diversion (Stage 1).

 

WCR4/TWCR4 Reclamation:

 

Ÿ Public fill at WCR4/TWCR4.

Ÿ Seawall blocks installation at WCR4/TWCR4.

Ÿ Geotextile at WCR4/TWCR4 area.

 

 

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

September 2013

October 2013

November 2013

Ÿ Construction of EVA

 

Ÿ Construction of EVA

 

Ÿ Construction of EVA

Ÿ Maintenance dredging

 

 

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

September 2013

October 2013

November 2013

Ÿ Sheet piling works

 

Ÿ Sheet piling works

 

Ÿ Sheet piling works

 

 

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

September 2013

October 2013

November 2013

Ÿ D-wall and Barrette Construction

Ÿ Construction works for Box Culvert T1

Ÿ Backfill works for Box Culvert U1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

 

 

Ÿ D-wall and Barrette Construction

Ÿ Removal of strut at ELS

Ÿ Construction works for Box Culvert T1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ ELS and Cut & Cover Tunnel

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

Ÿ Demolition of parapet at IEC link

Ÿ Construction of King Post at ELS

 

 

Ÿ D-wall and Barrette Construction

Ÿ Removal of strut at ELS will commence

Ÿ Construction works for Box Culvert T1

Ÿ Removal of marine platform

Ÿ Construction of pile cap, pier & cross head (Marine)

Ÿ ELS, EVB and Cut & Cover Tunnel

Ÿ Installation of dewatering well

Ÿ Laying of 1500f pipe

Ÿ Launching of segments

Ÿ Extraction of temporary pile from marine section

Ÿ Construction of bridge truss TA1

Ÿ Demolition of parapet at IEC link

Ÿ Construction of King Post at ELS

 

 

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

September 2013

October 2013

November 2013

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Demolition of the existing Expo Drive West Bridge

 

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Preparation works for abandoning watermains at Lung King Street

 

 

Ÿ Site preparation works

Ÿ Site survey

Ÿ ELS for box culvert La at Lung King Street

Ÿ Dredging

Ÿ Preparation works for abandoning watermains at Lung King Street

Ÿ Seawall rock mound formation

 

 

2.5.7.     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 Pr