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-364/2009/B,

Further Evironmental permit nos. fep-01/364/2009, fep-02/364/2009, FEP-03/364/2009, FEP-05/364/2009/A, FEp-06/364/2009/a, FEp-07/364/2009/a, FEp-08/364/2009/a and FEP-09/364/2009/B

 

Quarterly Environmental Monitoring
and Audit Report

 

- March 2013 to may 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:

 

 

27June 2013


Table of contents

 

1. Introduction. 1

1.1 Scope of the Report 1

1.2 Structure of the Report 1

2. Project Background. 2

2.1 Background. 2

2.2 Scope of the Project and Site Description. 2

2.3 Division of the Project Responsibility. 3

2.4 Project Organization and Contact Personnel 4

2.5 Principal Work and Activities. 6

3. Monitoring Requirements. 11

3.1. Noise Monitoring. 11

3.2. Air Monitoring. 13

4. Monitoring Results. 16

4.1. Noise Monitoring Results. 16

4.2. Real Time Noise Monitoring Results. 19

4.3. Air Monitoring Results. 22

4.4. Waste Monitoring Results. 25

5. Compliance Audit. 29

5.1. Noise Monitoring. 29

5.2. Air Monitoring. 29

5.3. Site Audit 31

5.4. Review of the Reasons for and the Implications of Non-compliance. 33

5.5. Summary of action taken in the event of and follow-up on non-compliance. 33

6. Complaints, Notification of Summons and Prosecution. 34

7. Cumulative Construction Impact due to the Concurrent Projects. 35

8. Conclusion. 35


lIST OF TABLES

 

Table I Principal Work Activities for Contract no. HY/2009/17

Table II Principal Work Activities for Contract no. HY/2009/18

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

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

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

Table VI Principal Work Activities for Contract no. HY/2009/19

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

Table VIII 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. HY/2009/17

Table 2.5 Principal Work Activities for Contract no. HY/2009/18

Table 2.6 Principal Work Activities for Contract no. HK/2009/01

Table 2.7 Principal Work Activities for Contract no. HK/2009/02

Table 2.8 Principal Work Activities for Contract no. HY/2009/15

Table 2.9 Principal Work Activities for Contract no. HK/2010/06

Table 2.10 Principal Work Activities for Contract no. HY/2009/19

Table 2.11 Principal Work Activities for Contract no. HK/2012/08

Table 3.1 Noise Monitoring Station

Table 3.2 Real Time Noise Monitoring Station

Table 3.3 Air Monitoring Stations

Table 4.1 Noise Monitoring Stations for Contract no. HY/2009/17

Table 4.2 Noise Monitoring Station for Contract no. HY/2009/18

Table 4.3 Noise Monitoring Stations for Contract nos. HK/2009/01 and HK/2009/02

Table 4.4 Noise Monitoring Station for Contract nos. HY/2009/15

Table 4.5 Noise Monitoring Stations for Contract no. HY/2009/19

Table 4.6 Real Time Noise Monitoring Station for Contract no. HY/2009/17

Table 4.7 Real Time Noise Monitoring Stations for Contract no. HY/2009/19

Table 4.8 Air Monitoring Stations for Contract no. HY/2009/17

Table 4.7 Air Monitoring Stations for Contract no. HY/2009/18

Table 4.10 Air Monitoring Stations for Contract no. HK/2009/01

Table 4.11 Air Monitoring Station for Contract no. HK/2009/02

Table 4.12 Air Monitoring Station for Contract no. HY/2009/15

Table 4.13 Air Monitoring Stations for Contract no. HY/2009/19

Table 4.14 Details of Waste Disposal for Contract no. HY/2009/17

Table 4.15 Details of Waste Disposal for Contract no. HK/2009/01

Table 4.16 Details of Waste Disposal for Contract no. HK/2009/02

Table 4.17 Details of Waste Disposal for Contract no. HY/2009/18

Table 4.18 Details of Waste Disposal for Contract no. HY/2009/15

Table 4.19 Details of Waste Disposal for Contract no. HY/2009/19

Table 4.20 Details fo Waste Disposal for Contract no. HK/2010/06

Table 4.21 Details of Waste Disposal for Contract no. HK/2012/08

 

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 Results and Graphical Presentations

Appendix 4.2 Real-time Noise Monitoring Results and Graphical Presentations

Appendix 4.3 Air Quality Monitoring Results and Graphical Presentations

Appendix 5.1 Event Action Plans

Appendix 6.1 Complaint Log

Appendix 6.2 Notification of Exceedance

Appendix 8.1 Construction Programme of Individual Contracts


 

EXECUTIVE SUMMARY

 

  1. This is the Environmental Monitoring and Audit (EM&A) Quarterly Report March 2013 to May 2013 specific for Environmental Permit no. EP-364/2009/A, Further Environmental Permit nos. FEP-01/364/2009, FEP-02-364/2009, FEP-03-364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/A, FEP-08/364/2009/A and FEP-09/364/2009/B. The EM&A report is prepared by the Environmental Team (ET) employed under Contract No. HK/2011/07 Wan Chai Development Phase II and Central Wanchai Bypass Sampling, Field Measurement and Testing Works (Stage 2). This report presents the environmental monitoring findings and information recorded during the period March 2013 to May 2013. The cut-off date of reporting is at 28th of each reporting quarter.

 

  1. In the reporting quarter, the principal work activities of individual contracts are included as follows:

 

Contract no. HY/2009/17 - Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced piling works under FEP-03/364/2009

Major construction activities for Contract no. HK/2009/17 have been commenced on 5 October 2010. During this reporting period, the principal work activities for Contract no. HY/2009/17 are summarized as below:

Table I Principal Work Activities for Contract no. HY/2009/17

March 2013

April 2013

May 2013

Ÿ   No further work under designated project

Ÿ   No further work under designated project

Ÿ   No further work under designated project and Further Environmental Permit surrendered on 25 Apr 2013

 

Contract no. HY/2009/18 - Central - Wan Chai Bypass (CWB) - Central Interchange under FEP-05/364/2009/

Major construction activities for Contract no. HY/2009/18 have been commenced on 21 April 2011. During this reporting period, the principal work activities for Contract no. HY/2009/18 are summarized as below:

Table II Principal Work Activities for Contract no. HY/2009/18

March 2013

April 2013

May 2013

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

 

 

Contract no. HK/2009/01 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Hong Kong Convention and Exhibition Centre - Tunnel Works under FEP-02/364/2009

Major construction activities for Contract no. HK/2009/01 have been commenced on 25 August 2011. During this reporting period, the principal work activities are summarized as below:

 

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

March 2013

April 2013

May 2013

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

Ÿ  Diaphragm wall construction works at Stage 2 (North)

Ÿ  Mobilization of 1st Piling rig for pre-bored H piling works under atrium

 

 

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

Ÿ  Diaphragm wall construction works at Stage 2 (North)

Ÿ  Temporary bulkhead wall construction works between Stage1/Stage2.

Ÿ  Pre-bored H piling works for CWB (Stage1b)

Ÿ  Piling rig for pre-bored H piling works under atrium was mobilized to Site

 

Ÿ   Pre-drilling works for CWB (Stage 2)

Ÿ   Diaphragm wall construction works at Stage 2 (North)

Ÿ   Temporary bulkhead wall construction works between Stage1 / Stage2

Ÿ   Pre-bored H piling works for CWB (Stage1b)

Ÿ   3rd Piling rig for pre-bored H piling works under atrium

 

Contract no. HK/2009/02 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Wan Chai East (CWB Tunnel) under FEP-01/364/2009

Major construction activities for Contract no. HK/2009/02 have been commenced on 26 April 2011. During this reporting period, the principal work activities are summarized as below:

 

 

 

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

March 2013

April 2013

May 2013

Ÿ   Casting of Base slab Bay 4, Bay8, Bay9 & Bay10

Ÿ   Waterproofing installation at WCR1 of Tunnel Portion 1

Ÿ   Rebar fixing for base slab Bay 11 to Bay 14

Ÿ   3 nos. bored piles PN12, PC12 & PS14 were concreted

Ÿ   Excavation for other 4 nos. bored piles PS13, PC14, PS18 & PS19

Ÿ   The outstanding sewerage works in Wan Shing Street by heading method

Ÿ   Silt curtain installation for dredging works at TWCR4 was completed on 5 Mar 2013.

Ÿ   Works associated with footpath modification and proposed sewerage works for Hung Hing Road Flyover Diversion Stage 1 implementation.

 

 

Ÿ  Concreting of Eastern Bulkhead Wall, Panel BHP1, BHP6, BHP11 and BHP15

Ÿ  Casting of Base slab Bay 11, Bay 12 & Bay 13

Ÿ  Waterproofing installation at WCR1 of Tunnel Portion 1

Ÿ  Rebar fixing for base slab Bay 2 and Bay 14 - Bay 16

Ÿ  Concreting of 6 nos. bored piles PN13, PC14, PC16, PS13, PS18 & PS19.

Ÿ  Excavation for other 6 nos. bored piles PN14, PN15, PC13, PC15, PC17 & PS17.

Ÿ  Extraction of the temporary sheet pile wall at WCR2.

Ÿ  The outstanding sewerage works in Wan Shing Street by heading method was and pipe installation between MH4.21A and MH4.24

Ÿ  Backfilling works along Wan Shing Street

Ÿ  Works associated with footpath modification and proposed sewerage works for Hung Hing Road Flyover Diversion (Stage 1) implementation.

 

Ÿ   Remedial works for P7 & P8 at WCR1 area.

Ÿ   Excavation works for pile cap construction

Ÿ   Remedial works of concrete plug at Bay 1B of Salt Water Intake Culvert

Ÿ   Reinforcement fixing at Bay 1B base slab

Ÿ   Steel pile cutting works at Bay 2A/2B interface of Salt Water Culvert

Ÿ   Casting of Base slab at Bay 2B of Salt Water Intake Culvert and steel fixing for its wall and top slab.

Ÿ   Installation of HDPE pipes from Bay 4 to Bay 11 (except Bay 7)

Ÿ   The HDPE pipe at Bay 3 would be carried out after the completion of Intake Culvert Bay 1B & Bay 2B.

Ÿ   Construction of Bay 4 base slab of Box Culvert N1c

Ÿ   Concreting of Eastern Bulkhead Wall, Panel BHC4, BHC10, BHP13 and BHC14 Excavation for Panel BHC2

Ÿ   Preparation works for BHC12

Ÿ   Casting of base slab (Bay 14)

Ÿ   Rebar fixing for base slab Bay 1 & Bay 2 at WCR1 of Tunnel Portion 1 and that for Bay

Ÿ   15 & Bay 16 was in progress.

Ÿ   Bored piles PN14, PN15, PN16, PC13, PC15, PC17 & PS17 were concreted

Ÿ   Excavation for bored pile PN17

 

 

Contract no. HY/2009/15 - Central-Wanchai Bypass Tunnel (Causeway Bay Typhoon Shelter Section) under FEP-06/364/2009/A

Major construction activities for Contract no. HY/2009/15 has been commenced on 13 July 2011. During this reporting period, the principal work activities are summarized as below:

 

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

March 2013

April 2013

May 2013

Ÿ   ELS works at TS4

Ÿ   Rock breaking works at TPCWAE

Ÿ   Tunnel works at TS1

Ÿ   Horizontal drilling for mined tunnel

Ÿ   Construction of Diaphragm Wall at TS2

 

 

Ÿ  ELS works at TS4

Ÿ  Rock trimming and concrete works at TPCWAE

Ÿ  Tunnel works at TS1

Ÿ  Horizontal drilling for mined tunnel

Ÿ  Construction of Diaphragm Wall at TS2

 

Ÿ  ELS works and pipe roofing works at TS4

Ÿ  RC structure works at TPCWAE

Ÿ  Tunnel works at TS1

Ÿ  Excavation for mined tunnel

Ÿ  Construction of Diaphragm Wall at TS2

 

 

Contract no. HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link under FEP-07/364/2009/A

Major construction activities for Contract no. HY/2009/19 have been commenced on March 2011. During this reporting period, the principal work activities are summarized as below:

 

Table VI Principal Work Activities for Contract no. HY/2009/19

March 2013

April 2013

May 2013

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  Construction of socket-H pile

Ÿ  Construction works for Culvert U1

Ÿ  Construction of Pile caps & columns (Land)

Ÿ  Demolition of parapet at IEC Link

Ÿ  Construction of Pile caps & columns (Marine)

Ÿ  Construction of dewatering well for Cut & Cover Tunnel

Ÿ  D8-D9 Gantry Fabrication for precast segment

Ÿ  ELS for Cut & Cover Tunnel

 

Ÿ   Road works at Watson Road

Ÿ   Bored piling (Land)

Ÿ   D-wall and Barrette Construction

Ÿ   Construction works for Box Culvert T1

Ÿ   Construct ion of socket-H pile

Ÿ   Construction works for Culvert U1

Ÿ   Dismantling of marine platform

Ÿ   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

Ÿ   Laying of 1500f pipe will continue

 

Ÿ   Road works at Watson Road

Ÿ   Bored piling (Land)

Ÿ   D-wall and Barrette Construction

Ÿ   Construction works for Box Culvert T1

Ÿ   Construction works for Culvert U1

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

Ÿ   D8-D9 Gantry Fabrication for precast segment

Ÿ   ELS for Cut & Cover Tunnel

Ÿ   Laying of 1500f pipe

Ÿ   Portal gantry works

Ÿ   Launching of girder

Ÿ   Launching of segments

Ÿ   Unloading segments from derrick

Ÿ   Extraction of temporary pile from marine section

 

 

 

Contract no. HK/2010/06 - Wan Chai Development Phase II - Central - Wan Chai Bypass over MTR Tsuen Wan Line under FEP-08/364/2009/A

 

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

March 2013

April 2013

May 2013

Ÿ   Utility works in section 2

Ÿ   Utility works in section 2

Ÿ   Nil

 

Contract no. HK/2012/08 Wan Chai Development Phase II Central- Wan Chai Bypass at Wan Chai West under FEP-09/364/2009B

 

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

March 2013

April 2013

May 2013

Ÿ   Site preparation works

Ÿ   Site survey

Ÿ   Site preparation works

Ÿ   Site survey

Ÿ   Site preparation works

Ÿ   Site survey

 

Noise Monitoring

  1. Per EPDs letter dated 3 Aug 2012 (received by ET on 6 Aug 2012 through HyD), noise monitoring at M8 City Hall commenced on 7 Aug 2012, and the monitoring station M7e International Finance Centre (Eastern Podium) has become a reference station starting from 7 Aug 2012.
  2. Due to safety concerns, the monitoring location for M4b Victoria Centre has been finely adjusted from 7 June 2012.
  3. Monitoring for report of review baseline noise level was performed from 11 April 2011 to 8 June 2011. Then the report was submitted on the 20 June 2011, verified by IEC on 18 July 2011 and was approved by ER by January 2012. The new baseline is used for the noise calculation starting from the January 2012 reporting month.
  4. Noise monitoring was conducted at M1a - Harbour Road Sports Center; M2b - Noon-day gun area; M3a - Tung Lo Wan Fire Station; M4b - Victoria Center; M5b - City Garden, M6 - HK Baptist Church Henrietta Secondary School, M7e and M7w International Finance Centre eastern and western wing, and M8 City Hall on a weekly basis.
  5. No action and 4 limit level exceedances at M6 HK Baptist Church Henrietta Secondary School were recorded on 7, 12, 19 and 26 March 2013 in this reporting quarter. Exceedances on 7, 12 and 19 March 2013 were concluded as non-project related and exceedance on 26 March 2013 was concluded as Project related.
  6. No action and 4 limit level exceedances at M6 HK Baptist Church Henrietta Secondary School were recorded on 3, 12, 16 and 23 April 2013 in this reporting quarter. Execeedances on 3, 16 and 23 April 2013 were concluded as non-project related and exceedance on 12 April 2013 was concluded as Project related.
  7. No action and 3 limit level exceedances at M6 HK Baptist Church Henrietta Secondary School were recorded on 2, 7 and 21 May 2013 in this reporting quarter. The exceedances were concluded as non-project related.

 

Real time Noise Monitoring

  1. 24-hour real time noise monitoring was conducted at RTN1 - FEHD Hong Kong Transport Section Whitefield Depot for the pilling works in FEHD Whitfield Depot and RTN2 Tunnel (North Point Section) and Island Eastern Corridor Link during the period from 28 September 2012 til 10am on 5 October 2012 in the reporting period.
  2. Real time noise monitoring station at Oil Street Community Liaison Centre (RTN2- Oil Street Community Centre) was relocated from Oil Street Community Liaison Centre to Hong Kong Electric (RTN2a- Electric Centre) on 5 Oct which is a representative of the noise sensitive receiver City Garden. 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.
  3. As confirmed by CWB RSS, the IECL parapet removal operations will commence in March 2013. Liaison was conducted with HK Baptist Church Henrietta Secondary School and Po Leung Kuk Yu Lee Mo Fan Memorial School regarding the set up of RTN3 real time noise monitoring station. Po Leung Kuk Yu Lee Mo Fan Memorial School grant permission for set up on 4 Sep 2012 and station set up was performed on 14 Sep 2012.
  4. Real Time Noise Monitoring at RTN3- Po Leung Kuk Yu Lee Mo Fan Memorial School was commenced since 06 Oct 2012.
  5. Causeway Bay Community Centre has granted permission for set up of real time noise monitoring station on 21 Dec 2012 and station set up was performed on 27 Dec 2012. The Baseline noise level of RTN4- Causeway Bay Community Centre will adopt the results from the baseline noise monitoring report for EP/364/2009 in 22 April 2010 in which approved by EPD.
  6. According to clause 3.1 stated in EP-364/2009B, the real-time monitoring system shall be in place no later than two weeks before the commencement date of demolition works of the existing Island Eastern Corridor. IEC demolition associated construction works was commenced on 3 Feb 2013 and Real time noise monitoring at RTN4-Causeway Bay Community Centre was commenced on 13 Jan 2013.
  7. No limit level exceedance was recorded in March reporting month and no project related exceedance was recorded in April and May reporting month at RTN1- FEHD Hong Kong Transport Section Whitfield Depot during this reporting quarter.
  8. No limit level exceedance was recorded in March reporting month and no project related exceedance was recorded in April and May reporting month at RTN2a-Hong Kong Electric Centre during this reporting quarter.
  9. No limit level exceedance was recorded in March and April reporting month and no project related exceedance was recorded in the May reporting month at RTN3-Yu Lee Mo Fan Memorial School during this reporting quarter.
  10. No project related exceedances was recorded in March and April reporting month and no limit level exceedance was recorded in May reporting month at RTN4-Causeway Bay Community 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. 1-hour and 24-hour Total Suspended Particulates (TSP) monitoring were conducted at CMA1b - Oil Street Community Liaison Centre; CMA2a - Causeway Bay Community Center; CMA3a - CWB PRE Site Office Area; CMA4a Society for the Prevention of Cruelty to Animals; CMA5a - Children Garden opposite to Pedestrian Plaza; MA1e and MA1w International Finance Centre eastern and western wing on every six days basis.
  3. 2 action level and no limit level exceedances were recorded during 1hr-TSP monitoring on 15 April 2013 at CMA1b Oil Street Site Office in this reporting quarter. The exceedances were concluded as non-project related.
  4. 2 action level and no limit level exceedances were recorded during 1hr-TSP monitoring on 15 April 2013 at CMA3a CWB PRE Site Office in this reporting quarter. The exceedances were concluded as non-project related.
  5. 2 action level and 1 limit level exceedances were recorded during 1hr-TSP monitoring on 15 April 2013 at MA1e International Finance Centre (Eastern Wing) in this reporting quarter. The exceedances were concluded as non-project related.
  6. 3 action level and no limit level exceedances were recorded during 1hr-TSP monitoring on 15 April 2013 at MA1w International Finance Centre (Western Wing) in this reporting quarter. The exceedances were concluded as non-project related.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. There was no environmental complaint received in this 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-364/2009A and Further Environmental permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-03/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/A, FEP-08/364/2009/A and FEP-09/364/2009/B 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 10.3 of EM&A Manual and Environmental Monitoring and Audit Requirements under Particular Specification Section 27.

1.1.3.     This report documents the finding of EM&A works during the period from March 2013 to May 2013.

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.     Design and Construction of Central Wan Chai Bypass and Island Eastern Corridor Link under the Project involves the construction and operation of a trunk road and its road tunnel more than 800m in length between portals that is shown at Figure 2.1.

2.2.2.     The study area encompasses existing developments from Central to North Point. The scope of the Central-Wanchai Bypass (CWB) and Island Eastern Corridor Link (IECL) includes:

          A dual three-lane trunk road, approximately 4.5 km in length, and tunnel approximately 3.7 km in length defined from the connection with the existing Rumsey Street Flyover in Central, through to a connection with the existing Island Eastern Corridor to the east of the Causeway Bay Typhoon Shelter (CBTS);

          The Central Interchange near the Rumsey Street Flyover to provide road connections to the Central area;

          Tunnel control buildings and ventilation buildings;

          Slip roads to connect the CWB to the local road system in the Wan Chai North and Causeway Bay area;

          Associated road lighting, road signing, traffic control and surveillance system; and

          Other associated works.

 

2.2.3.     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 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.     In the reporting period, all the contracts were commenced and contract no. 04/HY/2006 had been completed. 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

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

04/HY/2006

Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong Street

DP1

September 2010

HK/2009/01

Wan Chai Development Phase II Central Wan Chai Bypass at Hong Kong Convention and Exhibition Centre Tunnel Works

DP1, DP2

25 August 2011

HK/2009/02

Wan Chai Development Phase II Central Wan Chai Bypass at Wan Chai East(CWB Tunnel)

DP1

26 April 2011

HY/2009/15

Central-Wanchai Bypass Tunnel (Causeway Bay Typhoon Shelter Section)

DP1

13 July 2011

HY/2009/19

Central Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link

DP1

24 March 2011

HK/2010/06

Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen Wan Line

DP3

22 March 2011

HK/2012/08

Wan Chai Development Phase II- Central-Wan Chai Bypass at Wan Chai West

DP1,DP2, DP3

DP works under
EP-364 to be commenced tentatively in June 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

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

Lam Woo & CO., LTD.

Contractor under Contract no. HY/2009/17

General Manager

Mr. Thomas Tang

6111 5351

2566 7522

Contractors Representative

Mr. Chung Man Shek

2566 4866

2566 7522

Site Agent

Mr. Tony Au

 

9725 5874

2566 7522

Environmental Officer

Dr. Priscilla Choy

9161 7287

2566 7522

Environmental Supervisor

Mr. Tam Chun Pong

6461 3062

2566 7522

Chun Wo Leader Joint Venture

Contractor under Contract no. HK/2009/01

Joint Venture Board Representative

Mr. PL Yue

2162 9909

2634 1626

Sub Agent

Mr. Terry Wong

9757 9846

Construction Manager

Mr. Wyman Wong

9627 2467

Construction Manager

Mr. Jack Chu

9775 2467

Construction Manager

Mr. Andy Yu

9648 4896

Environmental Officer (Compliance Manager)

Mr. Andy Mak

9103 2370

Environmental Supervisor

Mr. Kwong Weng Kit

6253 3356

Chun Wo CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Project Manager

Mr. Chan Sing Cho

3658-3002

2827 9996

Quality & Environmental Manager (Environmental Officer)

Mr. C.P. Ho

3658-3000

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 Manager /

Environmental Officer

Mr. M.H. Isa

9884 0810

Environmental Engineer

Calvin Leung

9286 9208

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

Leighton Contractors (Asia) Limited

Contractor under Contract no. HY/2009/18

Site Agent

Mr. Jimmy Chu

2214 7700

2140 6799

Deputy Site Agent

Mr Roger Wong

2214 7703

Environmental Officer

Mr. Anfernee Chow

2214 7721

Environmental Engineer Graduate

Phil Mak

2214 7738

Environmental Supervisor

K. P. Lai

6461 4660

Environmental Supervisor

Ray Cheng

22147742

Environmental Supervisor

Bosco Lee

22147711

Environmental Supervisor

Ryan Tsui

2214 7705

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Director

Mr. K C Cheung

2823 7813

2566 2192

Site Manager

Mr. J.H. Chen

3557 6368

Contractors Representative

Mr. Andrew Wong

3557 6407

Head of construction

Mr. Roger Cheung

3557 6371

Environmental Officer

Mr. Daniel Sin

3557 6215

Enviromental Supervisor

Ms Esther Choi

35576348

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. Clement Pang

9481 6024

Environmental Supervisor

Mr. Jacky Cheung

9735 9200

ENVIRON Hong Kong Limited

Independent Environmental Checker (IEC)

Independent Environmental Checker (IEC)

Mr. David Yeung

3465 2888

3465 2899

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.     Major construction activities for Contract no. HK/2009/17 have been commenced on 5 October 2010. During this reporting period, the principal work activities for Contract no. HY/2009/17 are summarized in Table2.4.

 

 

 

 

Table 2.4 Principal Work Activities for Contract no. HY/2009/17

March 2013

April 2013

May 2013

Ÿ   No further work under designated project

Ÿ   No further work under designated project

Ÿ   No further work under designated project and Further Environmental Permit surrendered on 25 Apr 2013

2.5.2.     Major construction activities for Contract no. HY/2009/18 have been commenced on 21 April 2011. During this reporting period, the principal work activities for Contract no. HY/2009/18 are summarized in Table2.5:

Table 2.5 Principal Work Activities for Contract no. HY/2009/18

March 2013

April 2013

May 2013

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

Ÿ  Excavation of trial pit

Ÿ  Transplanting of trees

Ÿ  Hoarding erection and modification

Ÿ  Installation of couplers, UU detection, trial trench, pre-drilling

Ÿ  Excavation

Ÿ  Drainage works

Ÿ  Tunnel works

Ÿ  Trough structure construction and associated drilling and grouting

Ÿ  Road works

Ÿ  OHVD installation

Ÿ  Pre-bored H-piling

Ÿ  Bridges construction

Ÿ  Scaffolding / false-work erection

 

 

 

2.5.3.     Major construction activities for Contract no. HK/2009/01 have been commenced on 25 August 2011. During this reporting period, the principal work activities are summarized in Table2.6:

Table 2.6 Principal Work Activities for Contract no. HK/2009/01

March 2013

April 2013

May 2013

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

Ÿ  Diaphragm wall construction works at Stage 2 (North)

Ÿ  Mobilization of 1st Piling rig for pre-bored H piling works under atrium

 

 

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

Ÿ  Diaphragm wall construction works at Stage 2 (North)

Ÿ  Temporary bulkhead wall construction works between Stage1/Stage2.

Ÿ  Pre-bored H piling works for CWB (Stage1b)

Ÿ  Piling rig for pre-bored H piling works under atrium was mobilized to Site

 

Ÿ   Pre-drilling works for CWB (Stage 2)

Ÿ   Diaphragm wall construction works at Stage 2 (North)

Ÿ   Temporary bulkhead wall construction works between Stage1 / Stage2

Ÿ   Pre-bored H piling works for CWB (Stage1b)

Ÿ   3rd Piling rig for pre-bored H piling works under atrium

2.5.4.     Major construction activities for Contract no. HK/2009/02 have been commenced on 26 April 2011. During this reporting period, the principal work activities are summarized in Table2.7:

Table 2.7 Principal Work Activities for Contract no. HK/2009/02

March 2013

April 2013

May 2013

Ÿ   Casting of Base slab Bay 4, Bay8, Bay9 & Bay10

Ÿ   Waterproofing installation at WCR1 of Tunnel Portion 1

Ÿ   Rebar fixing for base slab Bay 11 to Bay 14

Ÿ   3 nos. bored piles PN12, PC12 & PS14 were concreted

Ÿ   Excavation for other 4 nos. bored piles PS13, PC14, PS18 & PS19

Ÿ   The outstanding sewerage works in Wan Shing Street by heading method

Ÿ   Silt curtain installation for dredging works at TWCR4 was completed on 5 Mar 2013.

Ÿ   Works associated with footpath modification and proposed sewerage works for Hung Hing Road Flyover Diversion Stage 1 implementation.

 

 

Ÿ  Concreting of Eastern Bulkhead Wall, Panel BHP1, BHP6, BHP11 and BHP15

Ÿ  Casting of Base slab Bay 11, Bay 12 & Bay 13

Ÿ  Waterproofing installation at WCR1 of Tunnel Portion 1

Ÿ  Rebar fixing for base slab Bay 2 and Bay 14 - Bay 16

Ÿ  Concreting of 6 nos. bored piles PN13, PC14, PC16, PS13, PS18 & PS19.

Ÿ  Excavation for other 6 nos. bored piles PN14, PN15, PC13, PC15, PC17 & PS17.

Ÿ  Extraction of the temporary sheet pile wall at WCR2.

Ÿ  The outstanding sewerage works in Wan Shing Street by heading method was and pipe installation between MH4.21A and MH4.24

Ÿ  Backfilling works along Wan Shing Street

Ÿ  Works associated with footpath modification and proposed sewerage works for Hung Hing Road Flyover Diversion (Stage 1) implementation.

 

Ÿ   Remedial works for P7 & P8 at WCR1 area.

Ÿ   Excavation works for pile cap construction

Ÿ   Remedial works of concrete plug at Bay 1B of Salt Water Intake Culvert

Ÿ   Reinforcement fixing at Bay 1B base slab

Ÿ   Steel pile cutting works at Bay 2A/2B interface of Salt Water Culvert

Ÿ   Casting of Base slab at Bay 2B of Salt Water Intake Culvert and steel fixing for its wall and top slab.

Ÿ   Installation of HDPE pipes from Bay 4 to Bay 11 (except Bay 7)

Ÿ   The HDPE pipe at Bay 3 would be carried out after the completion of Intake Culvert Bay 1B & Bay 2B.

Ÿ   Construction of Bay 4 base slab of Box Culvert N1c

Ÿ   Concreting of Eastern Bulkhead Wall, Panel BHC4, BHC10, BHP13 and BHC14 Excavation for Panel BHC2

Ÿ   Preparation works for BHC12

Ÿ   Casting of base slab (Bay 14)

Ÿ   Rebar fixing for base slab Bay 1 & Bay 2 at WCR1 of Tunnel Portion 1 and that for Bay

Ÿ   15 & Bay 16 was in progress.

Ÿ   Bored piles PN14, PN15, PN16, PC13, PC15, PC17 & PS17 were concreted

Ÿ   Excavation for bored pile PN17

 

2.5.5.     Major construction activities for Contract no. HY/2009/15 have been commenced on 13 July 2011. During this reporting period, the principal work activities are summarized in Table 2.8:

Table 2.8 Principal Work Activities for Contract no. HY/2009/15

March 2013

April 2013

May 2013

Ÿ   ELS works at TS4

Ÿ   Rock breaking works at TPCWAE

Ÿ   Tunnel works at TS1

Ÿ   Horizontal drilling for mined tunnel

Ÿ   Construction of Diaphragm Wall at TS2

 

 

Ÿ  ELS works at TS4

Ÿ  Rock trimming and concrete works at TPCWAE

Ÿ  Tunnel works at TS1

Ÿ  Horizontal drilling for mined tunnel

Ÿ  Construction of Diaphragm Wall at TS2

 

Ÿ  ELS works and pipe roofing works at TS4

Ÿ  RC structure works at TPCWAE

Ÿ  Tunnel works at TS1

Ÿ  Excavation for mined tunnel

Ÿ  Construction of Diaphragm Wall at TS2

 

2.5.6.     Major construction activities for Contract no. HY/2009/19 have been commenced on March 2011. During this reporting period, the principal work activities are summarized in Table 2.9:

Table 2.9 Principal Work Activities for Contract no. HY/2009/19

March 2013

April 2013

May 2013

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  Construction of socket-H pile

Ÿ  Construction works for Culvert U1

Ÿ  Construction of Pile caps & columns (Land)

Ÿ  Demolition of parapet at IEC Link

Ÿ  Construction of Pile caps & columns (Marine)

Ÿ  Construction of dewatering well for Cut & Cover Tunnel

Ÿ  D8-D9 Gantry Fabrication for precast segment

Ÿ  ELS for Cut & Cover Tunnel

 

Ÿ   Road works at Watson Road

Ÿ   Bored piling (Land)

Ÿ   D-wall and Barrette Construction

Ÿ   Construction works for Box Culvert T1

Ÿ   Construct ion of socket-H pile

Ÿ   Construction works for Culvert U1

Ÿ   Dismantling of marine platform

Ÿ   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

Ÿ   Laying of 1500f pipe will continue

 

Ÿ   Road works at Watson Road

Ÿ   Bored piling (Land)

Ÿ   D-wall and Barrette Construction

Ÿ   Construction works for Box Culvert T1

Ÿ   Construction works for Culvert U1

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

Ÿ   D8-D9 Gantry Fabrication for precast segment

Ÿ   ELS for Cut & Cover Tunnel

Ÿ   Laying of 1500f pipe

Ÿ   Portal gantry works

Ÿ   Launching of girder

Ÿ   Launching of segments

Ÿ   Unloading segments from derrick

Ÿ   Extraction of temporary pile from marine section

 

 

2.5.7.     Major construction activities for Contract no. HK/2010/06 have been commenced on March 2011. During this reporting period, the principal work activities are summarized in Table 2.10:

Table 2.10 Principal Work Activities for Contract no. HK/2010/06

March 2013

April 2013

May 2013

Ÿ   Utility works in section 2

Ÿ   Utility works in section 2

Ÿ   Nil

 

2.5.8.     Major construction activities for Contract no. HK/2012/08 have been commenced on March 2013. During the reporting period, the principal work activities are summarized in Table 2.11

Table 2.11 Principal Work Activities for Contract no. HK/2012/08

 

March 2013

April 2013

May 2013

Ÿ   Site preparation works

Ÿ   Site survey

Ÿ   Site preparation works

Ÿ   Site survey

Ÿ   Site preparation works

Ÿ   Site survey

2.5.9.     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 Station

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

*M7e

International Finance Centre (Eastern End of Podium)

M7w

International Finance Centre (Western End of Podium)

M8

City Hall

* Remark 1: Location ID has been updated from M7 to M8 for City Hall

* Remark 2: M7e has become a reference station starting from 7 Aug 2012

Real time Noise Monitoring Stations

3.1.2.     The 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

RTN2a

Electric Centre (Replacement of RTN2)

North Point

RTN3

Pok Leung Kuk Yu Lee Mo Fan Memorial School

Tin Hau

RTN4

Causeway Bay Community Centre

* RTN2 was relocated from Oil Street Community Liaison Centre to Electric Centre on

05 Oct 2012 and re-designated as RTN2a.

 

 

 

 

Noise Monitoring Parameters, Frequency and Duration

3.1.3.     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.

3.1.4.     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.

3.1.5.     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.

3.1.6.     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.

Monitoring Equipment

3.1.7.     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.

3.1.8.     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.

3.1.9.     The sound level meter shall be checked using an acoustic calibrator generating a known sound pressure level at a known frequency before deployment to the site and during each site visit. Measurements may be accepted as valid only if the calibration level from before and after the noise measurement agree to within 1.0 dB.

3.2.                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 Site Office*

North Point

CMA2a

Causeway Bay Community Centre

Causeway Bay

CMA3a

Future CWB site office at Wanchai Waterfront Promenade

Causeway Bay

CMA4a

Society for the Prevention of Cruelty to Animals

Wan Chai

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

Wan Chai

CMA6a

Future AECOM site office at Work Area

Wan Chai

MA1e

International Finance Centre (Eastern End of Podium)

Central

MA1w

International Finance Centre (Western End of Podium)

Central

Remarks*: The location ID of monitoring station CMA1b was updated as Oil Street Site Office in

April 2013.

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.

3.2.7.     Laboratory Measurement / Analysis

3.2.8.     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.

3.2.9.     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.

 

 

4.       Monitoring Results

4.0.1.     Per EPDs letter dated 3 Aug 2012 (received by ET on 6 Aug 2012 through HyD), noise monitoring at M8 City Hall commenced on 7 Aug 2012, and the monitoring station M7e International Finance Centre (Eastern Podium) has become a reference station starting from 7 Aug 2012.

4.0.2.     Due to safety concerns, the monitoring location for M4b Victoria Centre has been finely adjusted from 7 June 2012.

4.0.3.     Monitoring for report of review baseline noise level was performed from 11 April 2011 to 8 June 2011. Then the report was submitted on the 20 June 2011, verified by IEC on 18 July 2011 and was approved by ER by January 2012. The new baseline is used for the noise calculation starting from the January 2012 reporting month.

4.0.4.     The environmental monitoring will be implemented based on the division of works areas of each designed project managed under different contracts with separate FEP applied by individual contractors. Overall layout showing work areas of various contracts, latest status of work commencement and monitoring stations is shown in Figure 2.1 and Figure 3.1. The monitoring results are presented in according to the Individual Contract(s).

4.0.5.     In the reporting period, the concurrent contracts are as follows:

Ÿ   Contract no. HY/2009/15 Central-Wanchai Bypass Tunnel (Causeway Bay Typhoon Shelter Section) under FEP-06/364/2009/A

Ÿ   Contract no. HY/2009/17 Central Wanchai Bypass (CWB) at FEHD Whitfield Depot Advanced piling works under FEP-03/364/2009

Ÿ   Contract no. HY/2009/18 Central Wanchai Bypass (CWB) Central Interchange under FEP-05/364/2009/A

Ÿ   Contract no. HY/2009/19 Central Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link under FEP-07/364/2009

Ÿ   Contract no. HK/2009/01 Wanchai Development Phase II Central Wanchai Bypass at Hong Kong Convention and Exhibition Centre

Ÿ   Contract no. HK/2009/02 Wanchai Development Phase II Central- Wanchai Bypass at Wanchai East

  4.1.       Noise Monitoring Results

Contract no. HY/2009/17 Central Wanchai Bypass (CWB) at FEHD Whitfield Depot Advanced piling works under FEP-03/364/2009

4.1.1.     The proposed division of noise monitoring stations for Contract no. HY/2009/17 is summarized in Table 4.1 below:

Table 4.1 Noise Monitoring Stations for Contract no. HY/2009/17

Station

Description

M4b

Victoria Centre

4.1.2.     No exceedance was recorded in this reporting quarter.

4.1.3.     Noise monitoring results measured in this reporting period are reviewed and summarized. Details of graphical presentation can be referred in Appendix 4.1.

 

Contract no. HY/2009/18 Central Wanchai Bypass (CWB) Central Interchange under FEP-05/364/2009/A

4.1.4.     Noise monitoring for the Central Interchange works under contract no. HY/2009/18 was commenced on 22 April 2011.The proposed division of noise monitoring stations for Contract no. HY/2009/18 are summarized in Table 4.2 below.