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/D,

Further Evironmental permit nos. fep-01/364/2009, fep-02/364/2009, FEP-05/364/2009/A, FEp-06/364/2009/a, FEp-07/364/2009/D, FEP-09/364/2009/B, fep-10/364/2009/B and fep-11/364/2009/B

 

Quarterly Environmental Monitoring
and Audit Report

 

- SEPTEMBER 2015 to NOVEMBER 2015 -

 

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:

 

 

 

December 2015


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 5

2.5 Principal Work and Activities. 7

3. Monitoring Requirements. 12

3.1. Noise Monitoring. 12

3.2. Air quality monitoring. 14

4. Monitoring Results. 16

4.1. Noise Monitoring Results. 17

4.2. Real Time Noise Monitoring Results. 20

4.3. Air quality monitoring Results. 24

4.4. Waste Monitoring Results. 29

5. Compliance Audit.. 33

5.1. Noise Monitoring. 33

5.2. Air quality monitoring. 34

5.3. Real Time Noise Monitoring. 35

5.4. Site Audit 38

5.5. Review of the Reasons for and the Implications of Non-compliance. 38

5.6. Summary of action taken in the event of and follow-up on non-compliance. 38

6. Complaints, Notification of Summons and Prosecution.. 39

7. Cumulative Construction Impact due to the Concurrent Projects 43

8. Conclusion.. 44


lIST OF TABLES

 

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

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

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

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

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

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

Table VII Principal Work Activities for Contract no. HY/2010/08

Table VIII Principal Work Activities for Contract no. HY/2011/08

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/2009/18

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

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

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

Table 2.8 Principal Work Activities for Contract no. HY/2009/19

Table 2.9 Principal Work Activities for Contract no. HK/2012/08

Table 2.10 Principal Work Activities for Contract no. HY/2010/08

Table 2.11 Principal Work Activities for Contract no. HY/2011/08

Table 3.1 Noise Monitoring Stations

Table 3.2 Real Time Noise Monitoring Stations

Table 3.3 Air quality monitoring Stations

Table 4.1 Noise Monitoring Station for Contract no. HY/2009/18

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

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

Table 4.4 Noise Monitoring Stations for Contract no. HY/2009/19

Table 4.5 Noise Monitoring Stations for Contract no. HY/2010/08

Table 4.6 Noise Monitoring Stations for Contract no. HY/2011/08

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

Table 4.8 Real Time Noise Monitoring Stations for Contract no. HY/2011/08

Table 4.9 Air quality monitoring Stations for Contract no. HY/2009/18

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

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

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

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

Table 4.14 Air quality monitoring Stations for Contract no. HK/2012/08

Table 4.15 Air quality monitoring Stations for Contract no. HY/2010/08

Table 4.16 Air quality monitoring Stations for Contract no. HY/2011/08

Table 4.17 Details of Waste Disposal for Contract no. HK/2009/01

Table 4.18 Details of Waste Disposal for Contract no. HK/2009/02

Table 4.19 Details of Waste Disposal for Contract no. HY/2009/18

Table 4.20 Details of Waste Disposal for Contract no. HY/2009/15

Table 4.21 Details of Waste Disposal for Contract no. HY/2009/19

Table 4.22 Details of Waste Disposal for Contract no. HK/2012/08

Table 4.23 Details of Waste Disposal for Contract no. HY/2010/08

Table 4.24 Details of Waste Disposal for Contract no. HY/2011/08

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 September 2015 to November 2015 specific for Environmental Permit no. EP-364/2009/D, Further Environmental Permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/D, FEP-09/364/2009/B, FEP-10/364/2009/B AND FEP-11/364/2009/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 September 2015 to November 2015. The cut-off date of reporting is at 27th of each reporting quarter.

 

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

 

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 I Principal Work Activities for Contract no. HY/2009/18

September 2015

October 2015

November 2015

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

 

 

 

 

 

 

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

September 2015

October 2015

November 2015

Ÿ   Stage 1 & 2 Backfilling of CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 11 to 17

Ÿ   Stage 3 Box culvert diversion

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 Piling works

Ÿ   Stage 1 & 2 Backfilling works at CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 11 to 17

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 Piling works was completed and ELS works

Ÿ   Stage 1 & 2 Backfilling works at CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 18 to 20

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 ELS works

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

September 2015

October 2015

November 2015

Ÿ   Removal of strut, clearance works was on going at OHVD at Tunnel Portion 1

Ÿ   Construction of road side barrier

Ÿ   Removal of strut layer S3

Ÿ   Waterproofing and screeding works for top slab

Ÿ   Construction of road side barrier

Ÿ   Excavation in Layer S3

Ÿ   Struts installation for layer S4

Ÿ   Struts installation for layer S5

 

 

Ÿ   Removal of strut, clearance works was on going at OHVD at Tunnel Portion 1.

Ÿ   Construction of road side barriers

Ÿ   Removal of strut layer S2 was on going

Ÿ   Waterproofing and screeding works for top slab were on going

Ÿ   Backfilling works and access shaft construction

Ÿ   Construction of road side barriers

Ÿ   Struts installation for layer S5 is now in progress

Ÿ   Excavation for layer S6 is now in progress

 

Ÿ   Removal of stockpile of material, clearance works was on going at OHVD at Tunnel Portion 1.

Ÿ   Construction of road side barriers

Ÿ   Removal of strut layer S1 was on going

Ÿ   Backfilling works and access shaft construction

Ÿ   Construction of road side barriers

Ÿ   Tunnel Portion 3 & 4:

Ÿ   Struts installation for layer S5 is now in progress

Ÿ   Excavation for layer S6 is now in progress

Ÿ   Breaking through bulkhead wall BW3 was in progress

 

 

 

 

 

 

 

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

September 2015

October 2015

November 2015

Ÿ   Construction of OHVD and roadside barrier at Mined Tunnel

Ÿ   Permanent lining structure at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS at TPCWAW

Ÿ   Construction of OHVD and roadside barrier at Mined Tunnel

Ÿ   Permanent lining structure at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS at TPCWAW

Ÿ   Remaining works inside tunnel at TS4 and TPCWAE

 

Ÿ   Construction roadside barrier at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS works at TPCWAW

Ÿ   Construction RC structure at TPCWAW

Ÿ   Remaining works inside tunnel at TS4 and TPCWAE

Ÿ   Removal of standby Dewatering System and monitoring instrument along Hung Hing road

 

 

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

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

September 2015

October 2015

November 2015

Ÿ   Pile cap construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E pile cap/column/crosshead/deck construction

Ÿ   Tunnel Bay 14 backfilling

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/Approach Ramp

 

Ÿ   Pier construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E crosshead/deck construction

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/ADB

Ÿ   Pier 28 to 33 segment erections

 

Ÿ   Pier construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E crosshead/deck construction

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/ADB

Ÿ   Bridge segment erections

Ÿ   Pre-bored H-pile for Approach Ramp

Ÿ   Hing Fat Street modification works

 

 

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

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

September 2015

October 2015

November 2015

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of ELS at MVB

Ÿ   Pre-bored H-pile construction

 

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of MVB

Ÿ   Pre-bored H-pile construction

 

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of MVB

Ÿ   Pre-bored H-pile construction

Ÿ   Construction of concrete plug

Ÿ   Excavation and lateral support installation

 

 

Contract no. HY/2010/08 Central and WanChai Bypass Slip road 8 section under FEP-10/364/2009B

Table VII Principal Work Activities for Contract no. HY/2010/08

September 2015

October 2015

November 2015

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Reprovisional of Bowling Green,

Ÿ   ELS works

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Re-provisional of Bowling Green,

Ÿ   ELS works,

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

 

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Reprovisional of Bowling Green,

Ÿ   ELS works,

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

 

 

Contract no. HY/2011/08 Central - Wan Chai Bypass (CWB) Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning under FEP-11/364/2009B

 

Table VIII Principal Work Activities for Contract no. HY/2011/08

September 2015

October 2015

November 2015

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

 

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

 

 

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. One limit level exceedance was recorded at noise monitoring station M1a Habour Road Sports Center on 24 November 2015 in the reporting quarter. The exceedance was 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. Real-time noise monitoring station RTN1-FEHD Whitfield Depot was finely adjusted from 2/F to roof-top at FEHD Whitfield Depot on 24 June 2013 with respect to the commencement of advance works for IEC parapet demolition.
  8. No limit level exceedance was recorded in September, October and November reporting month at RTN1- FEHD Hong Kong Transport Section Whitfield Depot during this reporting quarter.
  9. No project related exceedance was recorded in November reporting month and no limit level exceedance was recorded in the September and October reporting month at RTN2a-Hong Kong Electric Centre during this reporting quarter.
  10. No limit level exceedance was recorded in September, October and November reporting month at RTN3-Yu Lee Mo Fan Memorial School during this reporting quarter.
  11. No project related exceedance was recorded in September, October and November 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 quality 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. With respect to the removal of Oil Street Site Office, the respective air quality monitoring station CMA1b was finely adjusted on 11 September 2015.
  4. One action level exceedance during 24hr TSP monitoring was recorded at monitoring station CMA1b Oil Street Site Office on 24 September 2015 in the reporting quarter. Investigation found that the exceedance recorded was not related to the Project.
  5. One action level exceedance during 1hr TSP monitoring was recorded at monitoring station CMA1b Oil Street Site Office on 30 September 2015 in the reporting quarter. Investigation found that the exceedance recorded was not related to the Project.
  6. No action or limit exceedance was recorded in the November reporting month in this reporting quarter.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. Four environmental complaints were received in the reporting quarter.

 

  1. First public complaint regarding dropping of excavated material from land to sea referred by EPD was received by ET on 04 September 2015 (EPD Ref.: H05/RS/00022241-15 dated 04 September 2015). The complainant reported that dropping of excavated materials from land to sea during loading of materials by excavator at the construction site to work boat. (Contract HK/2009/02)

 

ET confirmed with the Resident Site Staff that transferring of C&D materials from land to hopper barge by excavator at seaside along CWB Tunnel Portions 3 and 4 was undertaken by Contract HK/2009/02 on 01 September 2015.Mitigation measure including providing tarpaulin sheet to cover the gap between seawall and the hopper barge to prevent dropping of material to the sea was implemented by the Contractor.

 

According to the relevant site records under Contract HK/2009/02, transferring of C&D materials from land to hopper barge by excavator at seaside along CWB Tunnel Portions 3 and 4 was carried out on 01 September 2015 and mitigation measures including provision of tarpaulin sheet between seawall and the hopper barge was implemented by the Contractor of HK/2009/02 on the concerned date. Follow-up inspection was conducted during weekly environmental inspection on 10 September 2015. Transferring of C&D materials from land to barge by excavator was observed at the concerned location and mitigation measures including provision of tarpaulin sheet between seawall and hopper barge and the material transfer works was generally in order. Nevertheless, the Contractor of HK/2009/02 was reminded to maintain the handling procedure for C&D materials transfer from land to hopper barge and regularly inspect the condition of the tarpaulin sheet provided to ensure the nearby water quality are not affected by the loading and unloading of material from land side to hopper barge.

 

The Contractor was reminded to maintain the handling procedure for C&D materials transfer from land to hopper barge and regularly inspect the condition of the tarpaulin sheet provided to ensure the nearby water quality are not affected by the loading and unloading of material from land side to hopper barge.

 

  1. Second public complaint regarding construction noise and dust and exhaust emission referred by EPD was received by ET on 04 September 2015 (EPD Ref.: H04/RS/00022385-15 dated 04 September 2015). The complainant reported that construction noise was generated from the construction site of HK/2012/08 at location outside Fleet Arcade during night time on weekdays and daytime during General Holidays. The complainant also concerned construction dust and exhaust emission from derrick barges during transporting C&D material at the site. (Contract HK/2012/08)

 

ET confirmed with the Resident Site Staff that from 0800 hrs to 1800 hrs on 30 August 2015, removal of scaffold and timber and installation of bulkhead was undertaken by the Contractor of HK/2012/08 at the concerned location. Total one generator and one circular saw were in operation. From 1900hrs on 30 August 2015 to 0700 on 31 August 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location.

From 1900hrs on 31 August 2015 to 0700hrs on 01 September 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location.

From 1900hrs to 2115 hrs on 01 September 2015, unloading of soil was undertaken by the Contractor of HK/2012/08 at the concerned location. Total one derrick barge was in operation.

From 2300hrs on 01 September 2015 to 0700hrs on 02 September 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location. One derrick barge was deployed for unloading of soil on 02 September 2015 during daytime under Contract HK/2012/08 at the concerned location.

 

Based on the relevant site records, from 0800 hrs to 1800 hrs on 30 August 2015, removal of scaffold and timber and installation of bulkhead was undertaken by the Contractor of HK/2012/08 at the concerned location. Total one generator and one circular saw were in operation and the relevant Construction Noise Permit GW-RS0296-15 for the concerned operation was confirmed in place.

 

From 1900hrs on 30 August 2015 to 0700 on 31 August 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location and from 1900hrs on 31 August 2015 to 0700hrs on 01 September 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location.

 

From 1900hrs to 2115 hrs on 01 September 2015, unloading of soil was undertaken by the Contractor of HK/2012/08 at the concerned location. Total one derrick barge was in operation and the Construction Noise Permit GW-RS0296-15 for the concerned operation was confirmed in place. From 2300hrs on 01 September 2015 to 0700hrs on 02 September 2015, no construction works was undertaken by the Contractor of HK/2012/08 at the concerned location. In view of the above, the construction activities conducted under Contract HK/2012/08 during the concerned period was in compliance with the statutory requirement.

 

In addition, one derrick barge was deployed for unloading of soil on 02 September 2015 during daytime under Contract HK/2012/08 at the concerned location. Follow-up inspection was conducted during weekly environmental inspection on 08 September 2015 and no dark smoke emission was observed from the derrick barge moored outside the concerned location. Nevertheless, the Contractor of HK/2012/08 was reminded to conduct regular checking on the condition of the all derrick barges deployed on site to ensure only well maintained equipment are used to avoid potential dark smoke emission affecting nearby public and the Contractor of HK/2012/08 was reminded to upkeep the site control system for construction works carrying out at restricted hours and night time for Construction Noise Permit compliance.

 

The Contractor was reminded to conduct regular checking on the condition of derrick barges deployed on site to ensure only well maintained equipments are used on site to avoid potential dark smoke emission affecting nearby public.

 

The Contractor of HK/2012/08 was reminded to upkeep the site control system for construction works carrying out at restricted hours and night time for Construction Noise Permit compliance.

 

  1. Third public complaint regarding illegal disposal of construction waste referred by EPD was received by ET on 17 November 2015. The complainant reported that a) over 10,000 m3 of bentonite after usage for construction of diaphragm wall was disposed of at Victoria Habour, b) The Contractor recently deployed mobile crane to transfer the bentonite from mud pit on to works barge. The bentonite was then mixed with soil and transported to the Public Fill. During the course, seepage of slurry through grab generated drop off to marine waters and the soil mixing generated dust impact to nearby yacht club, typhoon shelter and affect nearby public and boats, c) Disposal of dredged marine sediment was not carried out in accordance with the Management of Dredged/Excavated Sediment. Instead the marine sediment was covered by sand and soil and transported to the Public Fill, d) White or greyish effluent was discharged directly into Victoria Habour marine waters from wastewater treatment plant on construction site.

 

Interim investigation report was submitted to EPD on 24 November 2015. Due to further investigation undertaken, further information and investigation summary shall be further included in December reporting month.

 

  1. Forth public complaint regarding noise impact referred by RSS was received by ET on 27 November 2015 (ICC Case Ref.: 2-1593165694 dated 26 November 2015). The complainant reported that noise was emanated from the IECL construction site outside City Garden Block 11 due to the windblown slapping of a metal sheet onto adjacent barrier causing nuisance to nearby residents at night time.

 

ET confirmed with the Resident Site Staff that the noise nuisance was caused by the windblown action of the corrugated metal sheet loosely affixed onto the temporary noise barrier panel above a concrete block footing fronting City Garden.

 

The noise nuisance was caused by the windblown action of the corrugated metal sheet loosely affixed onto the temporary noise barrier panel above a concrete blocking footing fronting City Garden. The concerned corrugated metal sheet was removed by the Contractor of HY/2009/19 on 27 November 2015 to avoid further generation of noise nuisance.

 

The Contractor was reminded to check and ensure metal sheetings and other material stored within the construction site are properly affixed to avoid potential noise nuisance due to windblown action.

 

 


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-364/2009/D and Further Environmental permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/D, FEP-09/364/2009/B, FEP-10/364/2009/B and FEP-11/364/2009/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-041/2001).

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 September 2015 to November 2015.

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

(Completed)

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

(Completed)

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

(Completed)

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 late 2013.

HY/2010/08

Central- Wanchai Bypass Tunnel Tunnel (Slip Road 8)

DP1, DP2, DP3

21 March 2013

HY/2011/08

Central - Wan Chai Bypass (CWB) Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning

DP1

8 October 2014

 

2.3.3.     The construction works of Contract no. 04/HY/2006 Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong Street under FEP-04/364/2009/A was completed, and the FEP was surrendered by the Contractor on 11 February 2011.

2.3.4.     Construction of bored pile E3B under HY/2009/17 was confirmed completed and the respective work area under FEP-03/364/2009 was handover and inspected under HY/2009/19 from 19 Dec 2012 onwards. Subsequently, the FEP-03/364/2009 was surrendered by the Contractor on 28 March 2013.

2.3.5.     Construction works under HK/2010/06 was confirmed completed and the respective work area under FEP-08/364/2009/A was handover and inspected under HK/2012/08 from 22 Sep 2014 onwards. Subsequently, the FEP-08/364/2009/A was surrendered by the Contractor on 3 October 2014.

 

 

 

 

 

2.4          Project Organization and Contact Personnel

2.4.1.     Civil Engineering and Development Department and Highways Department are the overall project controllers for the Wan Chai Development Phase II and Central-Wan Chai Bypass respectively. For the construction phase of the Project, Project Engineer, Contractor(s), Environmental Team and Independent Environmental Checker are appointed to manage and control environmental issues.

2.4.2.     The proposed project organization and lines of communication with respect to environmental protection works are shown in Figure 2.2. Key personnel and contact particulars are summarized in Table 2.3.

Table 2.3 Contact Details of Key Personnel

Party

Role

Post

Name

Contact No.

Contact Fax

AECOM

Engineers Representative for WDII

Principal Resident Engineer

Mr. Frankie Fan

2587 1778

2587 1877

Engineers Representative for CWB

Principal Resident Engineer

Mr. Peter Poon

3916 1818

3529 2829

Chun Wo Leader Joint Venture

Contractor under Contract no. HK/2009/01

Project Manager

Mr. Simon Liu

2162 9909

2634 1626

Site Agent

Mr. Andy Yu

9648 4896

Construction Manager

Mr. Terry Wong

9757 9846

Construction Manager

Mr. Wyman Wong

9627 2467

Construction Manager

Mr. Kenneth Chan

9160 3850

Environmental Officer

Ms. Wendy Ng

9103 2370

Assistant Environmental Engineer

Ms. Connie Chan

9047 6148

Chun Wo CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Site Agent

Mr. K.K. Yuen

3658-3002

2827 9996

Project Manager

Mr. Paul Yu

3658 3085

Environmental Officer

Mr. C.P. Ho

9191 8856

Chun Wo - CRGL - MBEC Joint Venture

Contractor under Contract no. HY/2009/19

Project Manager

Mr. David Lau

3758 8879

2570 8013

Deputy Project Manager

Mr. William Luk

9456 9819

Deputy Site Agent

Eric Fong

6191 9337

Environmental Manager /

Environmental Officer

Mr. M.H. Isa

9884 0810

Environmental Engineer

Mr. Calvin Leung

9286 9208

Leighton Contractors (Asia) Limited

Contractor under Contract no. HY/2009/18

Site Agent

Mr. Jimmy Chu

2214 7700

2140 6799

Deputy Site Agent

Mr. Bob Yeung

2214 7703

Environmental Officer

Mr. Chris Chan

2823 1161

Assistant Environmental Engineer

Mr. Christy So

3937 1065

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Director

Mr. Chris Leung

3557 6393

2566 2192

Site Manager

Mr. Y. Huo

3557 6368

Contractors Representative

Mr. Andrew Wong

3557 6371

Environmental Officer

Mr. Andy Mak

3557 6215

Environmental Supervisor

Mr. Harry Wong

3557 6348

China State- Leader JV

Contractor under Contract no. HK/2012/08

Project Director

Mr. C.N. Lai

9137 1811

2877 1522

Project Manager

Mr. Eddie Chung

9193 8871

Site Agent

Mr. Keith Tse

9095 7922

Environmental Officer

Mr. James MA

9130 9549

Environmental Supervisor

Mr. Y.L. Ho

6050 4919

China State

Contractor under Contract no.HY/2010/08

Project Director

Cheung Kit Cheung

3557 6399

3465 2899

Project Manager

Chan Ying Lun

9812 0592

Deputy Project Manager

Chris Leung

3467 4299

Site Agent

Dr. Dave Chan

3467 4277

Environmental Officer

Mr. Gabriel Wong

3557 6464

Environmental Supervisor

Mr. Louis Lam Tsz Kwan

3557 6470

Leighton Joint Venture

Contractor under Contract no. HY/2011/08

Project Manager

Paul Evans

2823 1111

21406799

Site Agent

Colman Wong

9730 0806

Environmental Officer

Malcom Leung

3973 0850

Environmental Supervisor

Christy So

3973 1065

Lam Geotechnics Limited

Environmental Team (ET)

Environmental Team Leader (ETL)

Mr. Raymond Dai

2882 3939

2882 3331

RAMBOLL ENVIRON Hong Kong Limited

Independent Environmental Checker (IEC)

Independent Environmental Checker (IEC)

Mr. David Yeung

3465 2888

3465 2899

 

2.5          Principal Work and Activities

2.5.1.     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 Table2.4:

Table 2.4 Principal Work Activities for Contract no. HY/2009/18

September 2015

October 2015

November 2015

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

Ÿ   Drainage works

Ÿ   Road works

Ÿ   Bridges construction

 

2.5.2.     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 Table2.5:

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

September 2015

October 2015

November 2015

Ÿ   Stage 1 & 2 Backfilling of CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 11 to 17

Ÿ   Stage 3 Box culvert diversion

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 Piling works

Ÿ   Stage 1 & 2 Backfilling works at CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 11 to 17

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 Piling works was completed and ELS works

Ÿ   Stage 1 & 2 Backfilling works at CWB Tunnel top slab

Ÿ   Stage 2 Construction of slip road 2 and 3

Ÿ   Stage 3 RC structure for CWB Tunnel Bay 18 to 20

Ÿ   Removal of abandoned cooling main (P7/P9) at Convention Avenue

Ÿ   Reinstatement of outfall

Ÿ   Reinstatement of triangular planter at Fenwick Pier Street

Ÿ   Roadworks /drains for Expo Drive East

Ÿ   Stage 4 ELS works

 

2.5.3.     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 Table2.6:

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

September 2015

October 2015

November 2015

Ÿ   Removal of strut, clearance works was on going at OHVD at Tunnel Portion 1

Ÿ   Construction of road side barrier

Ÿ   Removal of strut layer S3

Ÿ   Waterproofing and screeding works for top slab

Ÿ   Construction of road side barrier

Ÿ   Excavation in Layer S3

Ÿ   Struts installation for layer S4

Ÿ   Struts installation for layer S5

 

 

Ÿ   Removal of strut, clearance works was on going at OHVD at Tunnel Portion 1.

Ÿ   Construction of road side barriers

Ÿ   Removal of strut layer S2 was on going

Ÿ   Waterproofing and screeding works for top slab were on going

Ÿ   Backfilling works and access shaft construction

Ÿ   Construction of road side barriers

Ÿ   Struts installation for layer S5 is now in progress

Ÿ   Excavation for layer S6 is now in progress

 

Ÿ   Removal of stockpile of material, clearance works was on going at OHVD at Tunnel Portion 1.

Ÿ   Construction of road side barriers

Ÿ   Removal of strut layer S1 was on going

Ÿ   Backfilling works and access shaft construction

Ÿ   Construction of road side barriers

Ÿ   Tunnel Portion 3 & 4:

Ÿ   Struts installation for layer S5 is now in progress

Ÿ   Excavation for layer S6 is now in progress

Ÿ   Breaking through bulkhead wall BW3 was in progress

 

 

2.5.4.     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 2.7:

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

September 2015

October 2015

November 2015

Ÿ   Construction of OHVD and roadside barrier at Mined Tunnel

Ÿ   Permanent lining structure at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS at TPCWAW

Ÿ   Construction of OHVD and roadside barrier at Mined Tunnel

Ÿ   Permanent lining structure at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS at TPCWAW

Ÿ   Remaining works inside tunnel at TS4 and TPCWAE

 

Ÿ   Construction roadside barrier at Mined Tunnel

Ÿ   Fabrication of ELS steel works for TPCWAW

Ÿ   Excavation and installation of ELS works at TPCWAW

Ÿ   Construction RC structure at TPCWAW

Ÿ   Remaining works inside tunnel at TS4 and TPCWAE

Ÿ   Removal of standby Dewatering System and monitoring instrument along Hung Hing road

 

2.5.5.     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 2.8:

Table 2.8 Principal Work Activities for Contract no. HY/2009/19

September 2015

October 2015

November 2015

Ÿ   Pile cap construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E pile cap/column/crosshead/deck construction

Ÿ   Tunnel Bay 14 backfilling

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/Approach Ramp

 

Ÿ   Pier construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E crosshead/deck construction

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/ADB

Ÿ   Pier 28 to 33 segment erections

 

Ÿ   Pier construction for IEC

Ÿ   Construction of EVB and APS structure

Ÿ   Column modification at F1 to F8

Ÿ   Demolition of IEC west bound deck/crosshead/column/pile cap

Ÿ   Bridge E crosshead/deck construction

Ÿ   Watson Road laying of new water pipe

Ÿ   Oil Street drainage works

Ÿ   Excavation / Construction of retaining wall/ADB

Ÿ   Bridge segment erections

Ÿ   Pre-bored H-pile for Approach Ramp

Ÿ   Hing Fat Street modification works

 

 

2.5.6.     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 2.9

Table 2.9 Principal Work Activities for Contract no. HK/2012/08

September 2015

October 2015

November 2015

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of ELS at MVB

Ÿ   Pre-bored H-pile construction

 

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of MVB

Ÿ   Pre-bored H-pile construction

 

Ÿ   Diaphragm wall construction

Ÿ   Grouting

Ÿ   Construction of MVB

Ÿ   Pre-bored H-pile construction

Ÿ   Construction of concrete plug

Ÿ   Excavation and lateral support installation

 

2.5.7.     Major construction activities for Contract no.HY/2010/08 have been commenced on March 2013. During the reporting period, the principal work activities are summarized in Table 2.10

Table 2.10 Principal Work Activities for Contract no. HY/2010/08

September 2015

October 2015

November 2015

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Reprovisional of Bowling Green,

Ÿ   ELS works

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Re-provisional of Bowling Green,

Ÿ   ELS works,

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

 

Ÿ   Tree protection works next to existing BGO,

Ÿ   Drainage improvement works,

Ÿ   Sheet piling works,

Ÿ   Excavation and Lateral Support for U-structure,

Ÿ   Pipe piling & grouting works,

Ÿ   Utility diversion works,

Ÿ   Retaining wall works

Ÿ   Reprovisional of Bowling Green,

Ÿ   ELS works,

Ÿ   Diaphragm Wall, Barrette construction and king post installation works

Ÿ   D-wall drill cutting works

Ÿ   Construction works for subway extension

 

 

 

 

 

 

 

 

2.5.8.     Contract no. HY/2011/08 Central - Wan Chai Bypass (CWB) Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning under FEP-11/364/2009B. During the reporting period, the principal work activities are summarized in Table 2.11

Table 2.11 Principal Work Activities for Contract no. HY/2011/08

September 2015

October 2015

November 2015

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

 

Ÿ   West Ventilation Building Construction

Ÿ   East Ventilation Shaft Construction

Ÿ   Install VE panels bracket and thermal barrier for Tunnel

 

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

North Point

RTN3

Po 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 quality monitoring

Air Quality Monitoring Stations

3.2.1.     The air quality 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 quality monitoring Stations

Station ID

Monitoring Location

Description

CMA1b

Oil Street Site Office*

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

CMA5b

Pedestrian Plaza**

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. With respect to the removal of Oil Street Site Office, the respective air quality monitoring station CMA1b was finely adjusted on 11 September 2015.

Remarks**: With respect to the area handover, the air quality monitoring station CMA5a at Children Playgrounds opposite to the Pedestrian Plaza was relocated to the Pedestrian Plaza on 3 December 2014. The station reference and location ID of the air quality monitoring station CMA5a was updated as CMA5b and Pedestrian Plaza respectively.

 

Air quality 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/2009/18 Central Wanchai Bypass (CWB) Central Interchange under FEP-05/364/2009/A