Contract No: HK/2015/01

 

Wanchai Development Phase II and Central Wanchai Bypass

Sampling, Field Measurement and Testing Work (Stage 3)

 

Environmental Permit no. EP-364/2009/E,

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, FEP-12/364/2009/D

 

Quarterly Environmental Monitoring
and Audit Report

 

- June to August 2018

 

 

 

 

 

 

 

 

 

 

 

 

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:

 

 

 

3 October 2018


Table of contents

 

1. Introduction.. 10

1.1 Scope of the Report 10

1.2 Structure of the Report 10

2. Project Background.. 11

2.1 Background. 11

2.2 Scope of the Project and Site Description.. 11

2.3 Division of the Project Responsibility. 12

2.4 Project Organization and Contact Personnel 15

2.5 Principal Work and Activities. 17

3. Monitoring Requirements. 20

3.1. Noise Monitoring. 20

3.2. Air quality monitoring. 22

4. Monitoring Results. 24

4.1. Noise Monitoring Results. 25

4.2. Real Time Noise Monitoring Results. 28

4.3. Air quality monitoring Results. 32

4.4. Waste Monitoring Results. 35

5. Compliance Audit.. 41

5.1. Noise Monitoring. 41

5.2. Air quality monitoring. 41

5.3. Real Time Noise Monitoring. 42

5.4. Site Audit 43

5.5. Review of the Reasons for and the Implications of Non-compliance. 43

5.6. Summary of action taken in the event of and follow-up on non-compliance. 43

6. Complaints, Notification of Summons and Prosecution.. 43

7. Cumulative Construction Impact due to the Concurrent Projects 46

8. Conclusion.. 47


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 June to August 2018 specific for Environmental Permit no. EP-364/2009/E, 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/, FEP-11/364/2009/B and FEP-12/364/2009/D. 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 from 27 June 2018 to 26 August 2017. The cut-off date of reporting is at 26th of each reporting quarter.

 

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

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

June 2018

July 2018

August 2018

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Installation of breakwater

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Construction of seawall coping

Ÿ   Installation of tie back

Ÿ   Construction of Box Culvert O Bay 17B, 14A and 14B

Ÿ   Fabrication of precast units for Box Culvert O

Ÿ   Remedial works against water leakage and CCTV inside tunnel

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   Trimming high spot at Cheung Chau South

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Remedial works against water leakage and CCTV inside tunnel

Ÿ   Installation of breakwater

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Construction of seawall coping

Ÿ   Installation of precast units for Box Culvert O Bay 13 and 14

Ÿ   Backfilling and drainage connection works for Box Culvert O

Ÿ   Fabrication of precast units for Box Culvert O

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Demolition of Southern D-Wall

Ÿ   Rectification of defects for Box Culvert O

Ÿ   Pipe piling works for Box Culvert O Bay 12 and construction of DN1200 pipe

Ÿ   Backfilling and drainage connection works for Box Culvert O

Ÿ   Fabrication of seawall blocks

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   Removal of sorting facility at TKO Area 137

 

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

June 2018

July 2018

August 2018

Ÿ   Approach ramp structure construction & drainage works.

Ÿ   Bridge superstructure, parapet & noise enclosure works.

Ÿ   Retaining wall D construction.

Ÿ   FEHD depot re-provision works.

Ÿ   Oil street drainage works.

Ÿ   Watson Road Watermains laying works.

Ÿ   Hing Fat Street road and drainage works.

Ÿ   Demolition of TD bridge

Ÿ   Trough B & C construction

Ÿ   Approach ramp structure, drainage and noise enclosure construction works

Ÿ   Bridge noise enclosure installation works

Ÿ   FEHD depot re-provision works

Ÿ   Oil street drainage works

Ÿ   Watson Road Watermains laying works

Ÿ   Hing Fat Street road and drainage works

Ÿ   Trough B & C construction

Ÿ   SR13 drainage works

Ÿ   Seawall block reinstatement near box culvert T1

Ÿ   Approach ramp structure, drainage and noise enclosure construction works

Ÿ   Bridge noise enclosure installation works

Ÿ   FEHD depot re-provision works

Ÿ   Oil street drainage works

Ÿ   Watson Road Watermains laying works

Ÿ   Hing Fat Street road and drainage works

Ÿ   Trough B & C construction.

Ÿ   SR13 drainage works.

Ÿ   Seawall block reinstatement near box culvert T1

 

Contract no. HK/2012/08 Wan Chai Development Phase II Central- Wan Chai Bypass at Wan Chai West under FEP-09/364/2009/B and FEP-12/364/2009/D

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

June 2018

July 2018

August 2018

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Asphalt paving

Ÿ   Construction of roundabout

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Construction of roundabout

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Construction of roundabout

 

 

 

 

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

June 2018

July 2018

August 2018

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Junction modification,

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Junction modification

 

 

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

June 2018

July 2018

August 2018

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of Thermal Barrier inside the Tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of Thermal Barrier inside the Tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of road marking inside tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Man Po Street widening works

Ÿ   Traffic sign installation at various locations

 

Noise Monitoring

  1. 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.
  2. With respect to the demolition of Ex-Harbour Road Sports Centre, the respective noise monitoring station M1a Harbour Road Sports Centre were finely adjusted on 16 and 25 May 2017 and thereafter to the Footbridge for Harbour Road Sports for noise monitoring.
  3. One limit level exceedance was recorded at M6 - HK Baptist Church Henrietta Secondary School on 7 June 2018 in the June 2018 reporting period. After the investigation, the exceedance recorded was concluded as non-project related.
  4. No action or limit level exceedance was recorded in the July 2018 reporting period.
  5. No action or limit level exceedance was recorded in the August 2018 reporting period.

 

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. With respect to the non-CWB Project building construction at Oil Street, the real-time noise monitoring station RTN2a- Hong Kong Electric Centre was finely adjusted from Northeast Side to Northwestern side at Roof Top location.
  9. 24-hour real time noise monitoring was conducted at RTN1- FEHD Hong Kong Transport Section Whitfield Depot.

No limit level exceedance was recorded in the June, July and August 2018 reporting period

  1. 24-hour real time noise monitoring was conducted at RTN2a-Hong Kong Electric Centre.

No limit level exceedance was recorded in the June, July and August 2018 reporting period.

  1. 24-hour real time noise monitoring was conducted at RTN3 Yu Lee Mo Fan Memorial School.

Limit level exceedances was recorded on 16 June 2018 in the June 2018 reporting period. After investigation, the exceedances recorded was considered as non-Project related.

No limit level exceedance was recorded in the July 2018 reporting period.

Limit level exceedance was recorded on 21 August 2018in the August 2018 reporting period. After the investigation, the exceedance was concluded as non-project related.

  1. 24-hour real time noise monitoring was conducted at RTN4-Causeway Bay Community Centre.

No limit level related exceedance was recorded in June 2018 reporting period.

No limit level exceedance was recorded in the July 2018 reporting period.

Limit level exceedance was recorded on 7 August 2018 in the August 2018 reporting period. After the investigation, the exceedance was concluded as non-project related.

 

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. With respect to the proposed demolition of eastern podium of Oil Street Site Office, the respective air quality monitoring station CMA1b Oil Street Site Office was finely adjusted from East podium of the Oil Street Site Office to the West podium of the Oil Street Site Office on 21 December 2016.
  3. With respect to the proposed demolition of the Oil Street Site Office, the respective air quality monitoring station CMA1b Oil Street Site Office was finely adjusted from the Oil Street Site Office to Harbor Grand Hotel Boundary Wall from 05 June 2017 onwards.
  4. 1-hour and 24-hour Total Suspended Particulates (TSP) monitoring were conducted at CMA1b - Harbor Grand Hotel Boundary Wall; CMA2a - Causeway Bay Community Center; CMA3a - CWB PRE Site Office Area; CMA4a Society for the Prevention of Cruelty to Animals; CMA5b Pedestrian Plaza; MA1e and MA1w International Finance Centre eastern and western wing on every six days basis.
  5. No action or limit level exceedance was recorded in the June, July and August 2018 reporting period.
  6. With respect to access restriction and safety concern, the air quality monitoring at MA1e International Finance Centre Eastern Podium was temporary suspended from 23 July 2018 to 3 August 2018.

 

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. One environmental complaint was received in the June 2018 reporting period.

An EPD complaint was referred to the ET on 25 June 2018 (CASE Ref: H05/RS/00015954-18). The complainant reported that construction dust and muddy water discharge was found at the site near Wan Chai Pier on 11 June 2018 afternoon. ET confirmed with the Resident Site Staff that marine construction activity of removal of TWCR4 and stockpile of fill material at WCR3 Area were conducted under the Contractor of HK/2009/02 on 11 June 2018 afternoon. The Contractor of HK/2009/02 reported that double silt curtain was in place as mitigation measures during the marine activity and regular spraying water was provided as dust mitigation measures at WCR3 Area. Follow-up inspection was conducted on 28 June 2018, excavation works was observed at WCR3 Area and mitigation measures including watering during excavation was generally in place. Other dust mitigation measure includes covering the stockpile material and watering the dusty surface and haul road were generally in place. No particular dust impact was observed. No muddy water discharge or surface runoff related water quality monitoring impact was observed at Contract HK/2009/02 site area. Mitigation measures for marine activity includes providing double layers of silt curtain to enclose the marine activity area was generally in place and additional tarpaulin was provided to cover the temporary cut slope to avoid the potential surface runoff. In view of the public concern, the Contractor of HK/2009/02 was reminded to keep review the performance of dust mitigation measures including watering during excavation and material handling, covering the stockpile material and watering the dusty surface and haul road to avoid potential dust impact and minimize any potential dust impact to the surroundings. The Contractor of HK/2009/02 was also reminded to maintain regular checking on the embankment, silt curtain and tarpaulin condition to ensure no gap / void to avoid potential water quality related impact..

  1. Two Summons to Defendant were issued to the Contractors of Contract HY/2009/19 in the July 2018 reporting period.

The first Summons to Defendant was issued to the Contractors of Contract HY/2009/19 on 9 July 2018 regarding to use powered mechanical equipment, namely concrete lorry mixer, for the purpose of carrying out the construction work other than percussive pilling in respect to which a construction noise permit was not in force.

The second Summons to Defendant was issued to the Contractors of Contract HY/2009/19 on 19 July 2018 regarding to carry out construction work prescribed for the purpose of section 6(2) of the Noise Control Ordinance, namely handling of steel bars, in respect of which construction noise permit was not in forced.

  1. No environmental complaint and summons was received in the August 2018 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-364/2009/E 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, FEP-11/364/2009/B and FEP-12/364/2009/D 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 27 June 2018 to 26 August 2018.

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, the following construction Contracts were on-going and Contract HY/2009/01, HY/2009/17, 04/HY/2006, HY/2009/15, HY/2009/18 and HK/2010/06 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

(Completed)

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

(Completed)

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

(Completed)

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

10 March 2014

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.

2.3.6.     The Construction works under HY/2009/15 was confirm completed by the RSS from 27 October 2017 onwards. The weekly site audit inspection and the associated monitoring station for HY/2009/15 were temporary suspended from 27 October 2017 onwards.

2.3.7.     The Construction works under HY/2009/18 was confirm completed by the RSS from 25 April 2018 onwards. The weekly site audit inspection and the associated monitoring station for HY/2009/18 were temporary suspended from 27 April 2018 onwards.

2.3.8.     As confirmed with WDII RSS and with respect to the joint inspection conducted with IEC on 25 May 2018, RSS, ET and IEC share the view that there is no adverse environmental impact of remaining works under Contract HK/2009/01 and the respective environmental site inspection and associated monitoring station were temporary suspended from 26 May 2018 onwards.

 

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

Chief Resident Engineer

Ms. Gloria Tang

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

9304 8355

2634 1626

Environmental Officer

Mr. Terry Tsang

6683 9394

Chun Wo CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Site Agent

Mr. Paul Yu

3658-3002

2827 9996

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

Site Agent

Mr. William Luk

9456 9819

Deputy Site Agent

Mr. Andy Chan

3758 8879

Environmental Manager /

Environmental Officer

Mr. M.H. Isa

3757 8218

Assistant Environmental Officer

Mr. James Chan

3757 8217

Leighton Contractors (Asia) Limited

Contractor under Contract no. HY/2009/18

Site Agent

Mr. Jimmy Chu

2214 7700

2140 6799

Construction Manager

Mr. Darren Grant

3971 1460

Environmental Supervisor

Ms. Penny Yiu

3937 1065

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Director

Mr. Chris Leung

3577 6393

2566 2192

Site Agent

Mr. Patrick Ho

3557 6405

Environmental Officer

Mr. Desmond Ho

3557 6347

China State- Leader JV

Contractor under Contract no. HK/2012/08

Project Director

Mr. C.N. Lai

9137 1811

2877 1522

Site Agent

Mr. George Cheung

9268 1918

Environmental Officer

Mr. James MA

9130 9549

Environmental Supervisor

Mr. Y. L. Ho

9856 5669

China State

Contractor under Contract no. HY/2010/08

Project Director

Chris Leung

9210 7116

3465 2899

Site Agent

Mr. Thomas Lui

3557 6407

Environmental Officer

Mr. Gabriel Wong

3557 6466

Leighton Joint Venture

Contractor under Contract no. HY/2011/08

Site Agent

Mr. Colman Wong

2823 1410

21406799

Environmental Officer

Ms. Penny Yiu

3973 1065

Lam Geotechnics Limited

Environmental Team (ET)

Environmental Team Leader (ETL)

Mr. Raymond Dai

2882 3939

2882 3331

RAMBOLL 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. 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

June 2018

July 2018

August 2018

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Installation of breakwater

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Construction of seawall coping

Ÿ   Installation of tie back

Ÿ   Construction of Box Culvert O Bay 17B, 14A and 14B

Ÿ   Fabrication of precast units for Box Culvert O

Ÿ   Remedial works against water leakage and CCTV inside tunnel

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   Trimming high spot at Cheung Chau South

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Remedial works against water leakage and CCTV inside tunnel

Ÿ   Installation of breakwater

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Construction of seawall coping

Ÿ   Installation of precast units for Box Culvert O Bay 13 and 14

Ÿ   Backfilling and drainage connection works for Box Culvert O

Ÿ   Fabrication of precast units for Box Culvert O

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   New PMMA for the replacement of 8 nos. of damaged PMMA panels

Ÿ   Drainage work

Ÿ   Backfilling behind seawall block

Ÿ   Removal of temporary reclamation of TWCR4

Ÿ   Demolition of Southern D-Wall

Ÿ   Rectification of defects for Box Culvert O

Ÿ   Pipe piling works for Box Culvert O Bay 12 and construction of DN1200 pipe

Ÿ   Backfilling and drainage connection works for Box Culvert O

Ÿ   Fabrication of seawall blocks

Ÿ   Temporary drainage system for stock piling at Portion 5

Ÿ   Backfilling for sewerage trench at Wan Shing Street

Ÿ   Removal of sorting facility at TKO Area 137

 

 

 

 

 

2.5.2.     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

June 2018

July 2018

August 2018

Ÿ   Approach ramp structure construction & drainage works.

Ÿ   Bridge superstructure, parapet & noise enclosure works.

Ÿ   Retaining wall D construction.

Ÿ   FEHD depot re-provision works.

Ÿ   Oil street drainage works.

Ÿ   Watson Road Watermains laying works.

Ÿ   Hing Fat Street road and drainage works.

Ÿ   Demolition of TD bridge

Ÿ   Trough B & C construction

Ÿ   Approach ramp structure, drainage and noise enclosure construction works

Ÿ   Bridge noise enclosure installation works

Ÿ   FEHD depot re-provision works

Ÿ   Oil street drainage works

Ÿ   Watson Road Watermains laying works

Ÿ   Hing Fat Street road and drainage works

Ÿ   Trough B & C construction

Ÿ   SR13 drainage works

Ÿ   Seawall block reinstatement near box culvert T1

Ÿ   Approach ramp structure, drainage and noise enclosure construction works

Ÿ   Bridge noise enclosure installation works

Ÿ   FEHD depot re-provision works

Ÿ   Oil street drainage works

Ÿ   Watson Road Watermains laying works

Ÿ   Hing Fat Street road and drainage works

Ÿ   Trough B & C construction.

Ÿ   SR13 drainage works.

Ÿ   Seawall block reinstatement near box culvert T1

 

2.5.3.     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

June 2018

July 2018

August 2018

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Asphalt paving

Ÿ   Construction of roundabout

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Construction of roundabout

Ÿ   Construction of Slip Road 1

Ÿ   Construction of drainage

Ÿ   Construction of roundabout

 

 

 

 

 

2.5.4.     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

June 2018

July 2018

August 2018

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Junction modification,

Ÿ   Tree replanting works in VP

Ÿ   Drainage improvement works

Ÿ   Utility diversion works

Ÿ   Retaining wall works

Ÿ   Junction modification

 

2.5.5.     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

June 2018

July 2018

August 2018

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of Thermal Barrier inside the Tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of Thermal Barrier inside the Tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Construction of Ventilation Buildings, inclusive of Administration Building, Central Ventilation Building, East Ventilation Shaft/Building, West Ventilation Building

Ÿ   Application of road marking inside tunnel, asphalt pavement

Ÿ   Installation of Electricals and Mechanicals

Ÿ   Installation of Tunnel Features

Ÿ   Man Po Street widening works

Ÿ   Traffic sign installation at various locations

 

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

3. Monitoring Requirements

3.1.          Noise Monitoring

Noise Monitoring Stations

3.1.1.     The noise monitoring stations for the Project are listed and shown in Table 3.1 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.1 Noise Monitoring Station

Station

Description

M1a*

Footbridge at Ex-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*: Location ID has been updated from M7 to M8 for City Hall

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

Remarks***: The location ID of monitoring station M1a was updated as Footbridge for Ex-Harbour Road Sports Centre in May 2017.

 

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

Remarks*: 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

Harbour Grand Hotel Boundary Wall

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. The location ID of monitoring station CMA1b was updated as Harbour Grand Hotel Boundary Wall with respect to the fine adjustment of monitoring station from the Oil Street Site Office to Harbour Grand Hotel Boundary Wall from 05 June 2017 onwards due to demolition of Oil Street Site Office.

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 period.

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.     The Construction works under HY/2009/18 was confirm completed by the RSS from 25 April 2018 onwards. The associated monitoring station for HY/2009/18 were temporary suspended from 27 April 2018 onwards.

4.0.6.     The Construction works under HY/2009/15 was confirm completed by the RSS from 27 October 2017 onwards. The associated monitoring station for HY/2009/15 were temporally suspended from 27 October 2017 onwards.

4.0.7.     As confirmed with WDII RSS and with respect to the joint inspection conducted with IEC on 25 May 2018, RSS, ET and IEC share the view that there is no adverse environmental impact of remaining works under Contract HK/2009/01 and the associated monitoring station were temporary suspended from 26 May 2018 onwards.

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

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/2009/02 Wanchai Development Phase II Central- Wanchai Bypass at Wanchai East under FEP-01/364/2009

Ÿ   Contract no. HK/2012/08 Wan Chai Development Phase II Central- Wan Chai Bypass at Wan Chai West under FEP-09/364/200/B

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

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

 

  4.1.       Noise Monitoring Results

 

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

4.1.1.     The commencement of construction works for Contract no. HK/2009/02 under FEP-01/364/2009 is on 26 April 2011.The proposed division of air quality monitoring stations are summarized in Table 4.2 below.

Table 4.2 Noise Monitoring Stations for Contract no. HK/2009/02

Station

Description

M1a

Footbridge at Ex-Harbour Road Sports Centre

Reporting period of June 2018

4.1.2.     No action or limit level exceedance was recorded in the June, July and August 2018.

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

 

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

4.1.4.     Noise monitoring for the tunnel works under contract no. HY/2009/19 was commenced on 24 April 2011. The proposed division of noise monitoring stations are summarized in Table 4.4 below.

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

Station

Description

M4b

Victoria Centre

M5b

City Garden

M6

HK Baptist Church Henrietta Secondary School

 

 

 

Reporting period of June 2018

4.1.5.     One limit level exceedance was recorded at M6 - HK Baptist Church Henrietta Secondary School on 7 June 2018 in the reporting period.

4.1.6.     No construction work was conducted under HY/2009/19 around the monitoring location and nearby traffic noise was observed as major noise source during monitoring. As such, the exceedance was considered as non-Project related.

 

Reporting period of July 2018

4.1.7.     No action or limit level exceedance was recorded in the reporting period.

Reporting period of August 2018

4.1.8.     No action or limit level exceedance was recorded in the reporting period.

4.1.9.     Noise monitoring results measured in this reporting period are reviewed and summarized. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.1 and the Notification of Exceedance can be referred in Appendix 6.2.

 

Contract no. HY/2010/08 Central-Wanchai Bypass Wanchai Bypass Tunnel (Slip Raod 8 Section) under FEP-09/364/2009/B

4.1.10.   The commencement of construction works for Contract no. HY/2010/08 under FEP-10/364/2009/B was on 02 September 2013. Noise monitoring was commenced on 02 September 2013. The proposed divisions of noise monitoring stations are summarized in Table 4.5 below.

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

Station

Description

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

*M7e International Finance Centre (Eastern End of Podium)

*M7e International Finance Centre (Eastern End of Podium)

M7w International Finance Centre (Western End of Podium)

M7w International Finance Centre (Western End of Podium)

M8 City Hall

M8 City Hall

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

4.1.11.   As confirmed with CWB RSS, junction modification works in Central area would be conducted by Contract HY/2010/08 starting from July 2018 and tentatively completed in September 2018. The noise monitoring station M7e - International Finance Centre (Eastern End of Podium), M7w - International Finance Centre (Western End of Podium) and M8 City Hall would tentatively associated with Contract HY/2010/08.

4.1.12.   No action or limit level exceedance was recorded in the June, July and August 2018 reporting period.

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

 

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

4.1.14.   Noise monitoring for the Central Interchange works under contract no. HY/2011/08 was commenced on 22 April 2011.The proposed division of noise monitoring stations for Contract no. HY/2011/08 are summarized in Table 4.6 below:

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

Station

Description

M4b

Victoria Centre

*M7e

International Finance Centre (Eastern End of Podium)

M7w

International Finance Centre (Western End of Podium)

M8

City Hall

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

 

4.1.15.   No action or limit level exceedance was recorded in the June, July and August 2018 reporting period.

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

  4.2.       Real Time Noise Monitoring Results

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

4.2.1.     Real time noise monitoring results measured in this reporting period are reviewed and summarized. Details of real time noise monitoring results and graphical presentation can be referred to Appendix 4.2

4.2.2.     The proposed division of noise monitoring stations are summarized in Table 4.7 below. Real time noise monitoring for major construction works under contract no. HY/2009/19 was commenced on 24 April 2011.

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

Location ID

District

Description

RTN1

Tin Hau

FEHD Hong Kong Transport Section Whitefield Depot

RTN2a

North Point

Electric Centre (Replacement of RTN2)

RTN3

North Point

Pok Leung Kuk Yu Lee Mo Fun Memorial School

RTN4

Tin Hau

Causeway Bay Community Centre

* Real time noise monitoring results and graphical presentation during night time period are for information only.

*Real-time noise monitoring results and graphical presentation for RTN3 during restricted hours are for information only as no night classes were conducted at the educational institute.

Reporting period of June 2018

4.2.3.     No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.4.     No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.5.     Limit level exceedances were recorded at RTN3 - Yu Lee Mo Fan Memorial School was recorded on 16 June 2018 in the reporting period.

After checking with Contractor HY/2009/19, despite welding works for green roof was conducted on 16 June 2018, no major noise concern was considered. In view of the above, the exceedance was considered as non-project related and potentially contributed by nearby IEC traffic.

4.2.6.     No limit level exceedance was recorded at RTN4 Causeway Bay Community Centre in the reporting period.

 

 

Reporting period of July 2018

4.2.7.     No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.8.     No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.9.     No limit level exceedance was recorded at RTN3 - Yu Lee Mo Fan Memorial School in the reporting period.

4.2.10.   No limit level exceedance was recorded at RTN4 Causeway Bay Community Centre in the reporting period.

Reporting period of August 2018

4.2.11.   No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.12.   No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.13.   Limit level exceedance was recorded on 21 August 2018 at RTN3 - Yu Lee Mo Fan Memorial School in the reporting period.

After checking with the Contractor, no construction activities was conducted under Contract HY/2009/19 around the monitoring station. Meanwhile, heavy rainfall was recorded at Eastern District and considered as major contribution to the recorded noise level. As such, the exceedance was concluded as non-Project related.

4.2.14.   Limit level exceedance was recorded on 7 August 2018 at RTN4 Causeway Bay Community Centre in the reporting period.

4.2.15.   After checking with the Contractor, no construction activities was conducted under Contract HY/2009/19 around the monitoring station. Meanwhile, installation of lighting system conducted by non-CWB contractor was observed at Causeway Bay Community Centre roof top around the monitoring station and considered as major contribution to the recorded noise level. As such, the exceedance was concluded as non-Project related.

4.2.16.   Real time noise monitoring results measured in this reporting period are reviewed and summarized. Details of real time noise monitoring results and graphical presentation can be referred to Appendix 4.2

 

 

 

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

4.2.17.   The proposed division of noise monitoring stations are summarized in Table 4.8 below. Real time noise monitoring for major construction works under contract no. HY/2011/08 was commenced on 19 March 2015.

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

Location ID

District

Description

RTN1

Tin Hau

FEHD Hong Kong Transport Section Whitfield Depot

RTN2a1

North Point

Hong Kong Electric Centre

RTN4

Tin Hau

Causeway Bay Community Centre

* Real time noise monitoring results and graphical presentation during restrict hours and night time period are for information only and noise during CNP period shall be controlled under NCO.

Remarks 1: With respect to the possession of site area Portion Xa and Portion Xb since 7 March 2016 as confirmed by CWB RSS, real time noise monitoring station RTN2a was associated with Contract no. HY/2011/08 from 07 March 2016 onwards

Reporting period of June 2018

4.2.18.   No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.19.   No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.20.   No limit level exceedance was recorded at RTN4 Causeway Bay Community Centre in the reporting period.

Reporting period of July 2018

4.2.21.   No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.22.   No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.23.   No limit level exceedance was recorded at RTN4 Causeway Bay Community Centre in the reporting period.

Reporting period of August 2018

4.2.24.   No limit level exceedance was recorded at RTN1 - FEHD Hong Kong Transport Section Whitfield Depot in the reporting period.

4.2.25.   No limit level exceedance was recorded at RTN2a - Hong Kong Electric Centre in the reporting period.

4.2.26.   Limit level exceedance was recorded on 7 August 2018 at RTN4 Causeway Bay Community Centre in the reporting period.

After checking with the Contractor, Installation of cladding and plastering works was conducted at EVB and no particular noise was considered. Meanwhile, installation of lighting system conducted by non-CWB contractor was observed at Causeway Bay Community Centre roof top around the monitoring station and considered as major contribution to the recorded noise level. As such, the exceedance was concluded as non-Project related

4.2.1.     Real time noise monitoring results measured in this reporting period are reviewed and summarized. Details of real time noise monitoring results and graphical presentation can be referred to Appendix 4.2

 

 

 

 

  4.3.       Air quality monitoring Results

4.3.1       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.

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

4.3.2       The commencement of construction works for HK/2009/02 under FEP-01/364/2009 is on 26 April 2011. The proposed division of air quality monitoring stations are summarized in Table 4.11 below.

Table 4.11 Air quality monitoring Station for Contract no. H