Contract No: HK/2011/07

 

Wanchai Development Phase II and Central Wanchai Bypass

Sampling, Field Measurement and Testing Works (Stage 2)

 

Environmental Permit no. EP-356/2009,

Further Evironmental permit nos. fep-02/356/2009, FEP-03/356/2009, Fep-04/356/2009 ,Fep-05/356/2009 AND  Fep-06/356/2009

 

Monthly Environmental Monitoring & Audit Report

 

- March 2013 -


CLIENTS:

PREPARED BY:

 

 

Civil Engineering and Development

Department

 

and

 

Highways Department

 

Lam Geotechnics Limited

 

11/F Centre Point

181-185 Gloucester Road,

Wanchai, H.K.

 

Telephone: (852) 2882-3939

Facsimile: (852) 2882-3331

E-mail: info@lamenviro.com

Website: http://www.lamenviro.com

 

 

 

 

 

Certified by:



 

 

 

 

 

                                               

Raymond Dai

Environmental Team Leader

 

 

 

DATE:

 

 

April 2013


Table of contents

 

EXECUTIVE SUMMARY. 4

1.     Introduction. 13

1.1        Scope of the Report 14

1.2        Structure of the Report 14

2.     Project Background. 16

2.1        Background. 16

2.2        Scope of the Project and Site Description. 16

2.3        Division of the Project Responsibility. 17

2.4        Project Organization and Contact Personnel 18

3.     Status of Regulatory Compliance. 26

3.1        Status of Environmental Licensing and Permitting under the Project 27

4.     Monitoring Requirements. 37

4.1        Noise Monitoring. 39

4.2        Air Monitoring. 40

4.3        Water Quality Monitoring. 43

5.     Monitoring Results. 48

5.1        Noise Monitoring Results. 48

5.2        Real-time Noise Monitoring. 50

5.3        Air Monitoring Results. 50

5.4        Water Monitoring Results. 51

5.5        Waste Monitoring Results. 57

6.     Compliance Audit. 60

6.1        Noise Monitoring. 61

6.2        Real-time noise Monitoring. 61

6.3        Air Monitoring. 61

6.4        Water Quality Monitoring. 61

6.5        Review of the Reasons for and the Implications of Non-compliance. 63

6.6        Summary of action taken in the event of and follow-up on non-compliance. 63

7.     Cumulative Construction Impact due to the Concurrent Projects. 65

8.     Environmental Site Audit. 65

9.     Complaints, Notification of Summons and Prosecution. 66

10.    Conclusion. 70


lIST OF TABLES

 

Table I         Summary of Water Quality Monitoring Exceedances in Reporting Month

Table II        Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting Month

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 3.1      Summary of the current status on licences and/or permits on environmental protection pertinent to the Project

Table 3.4      Cumulative Summary of Valid Licences and Permits under Contract no. HK/2009/01

Table 3.5      Summary of submission status under FEP-02/356/2009 Condition

Table 3.6      Cumulative Summary of Valid Licences and Permits under Contract no. HK/2009/02

Table 3.7      Summary of submission status under FEP-03/356/2009 Condition

Table 3.8      Cumulative Summary of Valid Licences and Permits under Contract no. HY/2009/15

Table 3.9      Summary of submission status under FEP-04/356/2009 Condition

Table 3.10    Cumulative Summary of Valid Licences and Permits under Contract no. HK/2010/06

Table 3.11    Summary of submission status under EP-356/2009 and FEP-05/356/2009 Condition

Table 3.12    Cumulative Summary of Valid Licences and Permits under Contract no. HY/2009/19

Table 3.13    Cumulative Summary of Valid Licences and Permits under Contract no. HK/2012/08

Table 3.14    Summary of submission status under EP-356/2009 and FEP-06/356/2009 Condition

Table 4.1      Noise Monitoring Station

Table 4.2      Real Time Noise Monitoring Station

Table 4.3      Air Monitoring Station

Table 4.4     Marine Water Quality Stations for Water Quality Monitoring

Table 4.5      Marine Water Quality Monitoring Frequency and Parameters

Table 4.6     Marine Water Quality Stations for Enhanced Water Quality Monitoring

Table 4.7     Marine Water Quality Stations for Additional DO Monitoring

Table 5.2     Noise Monitoring Station for Contract nos. HK/2009/01, HK/2009/02 and HK/2010/06

Table 5.3     Noise Monitoring Station for Contract no. HY/2009/15

Table 5.4     Noise Monitoring Station for Contract no. HY/2009/19

Table 5.5      Real Time Noise Monitoring Station for Contract no. HY/2009/19

Table 5.7    Air Monitoring Station for Contract no. HK/2009/01

Table 5.8     Air Monitoring Station for Contract no. HK/2009/02

Table 5.9     Air Monitoring Station for Contract no. HY/2009/15

Table 5.10    Air Monitoring Stations for Contract no. HY/2009/19

Table 5.12    Water Monitoring Stations for Contract no. HK/2009/01

Table 5.13    Water Monitoring Stations for Contract no. HK/2009/02

Table 5.14    Water Monitoring Stations for Contract no. HK/2010/06

Table 5.15    Water Monitoring Stations for Contract no. HY/2009/15

Table 5.16    Water Monitoring Stations for Contract no. HY/2009/19

Table 5.17    Summary of Water Quality Monitoring Exceedances in Reporting Month

Table 5.18    Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting Month

Table 5.19    Details of Waste Disposal for Contract no. HK/2009/01

Table 5.20    Details of Waste Disposal for Contract no. HK/2009/02

Table 5.21    Details of Waste Disposal for Contract no. HY/2009/15

Table 5.22    Details of Waste Disposal for Contract no. HK/2010/06

Table 5.23    Details of Waste Disposal for Contract no. HY/2009/19

Table 8.1     Summary of Environmental Inspections for Contract no. HK/2009/01

Table 8.3     Summary of Environmental Inspections for Contract no. HY/2009/15

Table 8.4     Summary of Environmental Inspections for Contract no. HK/2010/06

Table 9.1      Cumulative Statistics on Complaints

Table 9.2      Cumulative Statistics on Successful Prosecutions

Table 10.1    Construction Activities and Recommended Mitigation Measures in Coming Reporting Month

 

 

lIST OF FIGUREs

 

Figure 2.1       Project Layout

Figure 2.2       Project Organization Chart

Figure 2.3     Locations of Environmental Monitoring Stations

 

 

 

lIST OF APPENDIces

 

Appendix 3.1  Environmental Mitigation Implementation Schedule

Appendix 4.1  Action and Limit Level

Appendix 4.2  Copies of Calibration Certificates

Appendix 5.1  Monitoring Schedule for Reporting Month and Coming month

Appendix 5.2  Noise Monitoring Results and Graphical Presentations

Appendix 5.3  Air Quality Monitoring Results and Graphical Presentations

Appendix 5.4  Water Quality Monitoring Results and Graphical Presentations

Appendix 5.4a  Additional Dissolved Oxygen Monitoring Results

Appendix 5.5  Real-time Noise Monitoring Results and Graphical Presentations

Appendix 6.1  Event Action Plans

Appendix 6.2  Summary for Notification of Exceedance

Appendix 7.1  Complaint Log

Appendix 8.1  Construction Programme of Individual Contracts


 

EXECUTIVE SUMMARY

  1. This is the Environmental Monitoring and Audit (EM&A) Monthly Report íVMarch 2013 for the Project of Wan Chai Development Phase II and Central-Wanchai Bypass under Environmental Permit no. EP-356/2009 and Further Environmental permit nos. FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009, FEP-05/356/2009 and FEP-06/356/2009. This report presents the environmental monitoring findings and information recorded during the period February 2013 to March 2013. The cut-off date of reporting is at 27th of each reporting month.

 

Construction Activities for the Reported Period

 

  1. During this reporting period, the major work activities for Contract no. HK/2009/01 included:

Marine Works (at Wan Chai)

íP          Rockfilling at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385.

íP          Installation of sheet pile wall for temporary open channel between CH290 and CH385.

íP          Construction of mass concrete coping for new seawall.

íP          Installation of ELS for construction of proposed box culvert Bay 8 and Bay 9.

 

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

íP          Rockfilling and rock protection to cross-harbour watermains.

íP          Final inspection for the CHWM (TST section) by WSD.

íP          Installation of interim connecting pipe between existing main and the proposed pipeline.

íP          CCTV inspection for cross-harbour water main (including CHA, CHB, CHE & CHF).

 

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

íP          Mainlaying works at Zone B6-1A, B6-3, B6-4, B6-5B, A2-3A, A3-2B, A3-3C, C1-2 and X2-1.

íP          Reinstatement works in combined Zone A1-2A & A1-3A.

íP          Mainlaying works in Zone A2-3A and A3-2B.

íP          Mainlaying works at Zone A3-3C .

íP          Mainlaying works at Zone C1-2.

íP          Reinstatement works in Zone B6-5 and subsequent mainlaying works in Zone B6-4 and B6-5B.

íP          Mainlaying works in Zone B6-1A and Zone B6-3 (previously named B1-5A).

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

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

íP          HEC and PCCW cabling works in Zone A1-1 which connected to the proposed transformer rectifier at new reclaimed area.

íP          Mainlaying works in Zone X2-1 of Convention Avenue.

 

Tunnel Works

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

íP          Diaphragm wall construction works at Stage 2 (North).

íP          1st Piling rig for pre-bored H piling works under atrium was mobilized to Site.

 

E & M

íP          Full commissioning test for Cooling Water Pumping Station P3 & P4.

íP          Full commissioning test for Cooling Water Pumping Station P5.

íP          FSD inspection for Cooling Water Pumping Stations P3 & P4.

íP          FSD inspection for Cooling Water Pumping Station P5.

 

  1. During this reporting period, the major work activities for Contract no. HK/2009/02 included:

íP          Modification work of PTI at Expo Drive East .

íP          Modification of existing covered walkway along Expo Drive East.

íP          Pressure tests for both intake main of GE/HC and SHK in the whole WCR1 area. 

íP          Pressure tests within northern part of WCR1 for both intake main of CRB and discharge main of SHK.

íP          Owing to the substantial settlement in the thrust blocks embedding the completed intake pipelines near to their corresponding P7 & P8 Cooling Water Pumping Station recorded, the flexible joints connecting with the structure had been detached and the subsided pipeline would be re-installed.  Site investigation was being carried out.

íP          The defeated cable joint box near the proposed combined access chamber had been rectified.

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

íP          Footpath reinstatement for the trenches near Harbour Centre.

íP          Dry tests at WSD Salt Water Pumping Station.  Wet test after completion of the proposed intake culvert.

íP          Drilling hole and installation of pipe bracket for aeration and chlorination pipe inside salt water intake culvert between Bay 8 and Bay 11.

íP          Installation of stoplog at Bay 2A of the proposed intake culvert

íP          Diver work at Bay 1B of the proposed intake culvert followed by concrete plug.

íP          The stability check to the proposed sheet pile removal works at Bay 2B.

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

íP          The ABWF works in WSD Salt Water Pumping Station, including maintenance platform and external finishes.

íP          The second T&C

íP          The trial period for the Outfall B.

íP          Switching over works for sewage to WCE PTW.

íP          Backfilling for the receiving pit adjacent to WCE PTW at Hung Hing Road.

íP          Saw cutting D-wall for 1050 dia. concrete pipe installation between Bay 1 and the existing drainage.  The associated platform for pipe laying and manhole MH1 construction.

íP          Proposed precast caisson seawall 2X ; infilling works.

íP          Concreting of top-slab for PT2 & PT3 at Level 1 (+4.15mPD).

íP          Concreting of eastern concrete staircase (ST1) from Level 1 to Observation Deck Level.

íP          Construction of Feature Tower on Observation Deck.

íP          Concreting of base slab with stem wall for PT4 & PT5 at Level 1 (under +4.15mPD).

íP          Installation of concrete block and plastering works wall for Stair-03 (2nos.) on Level 1 to Observation Deck Level.

íP          ABWF including brickworks and E&M cable tray at 1/F, 2/F and  M/F.

íP          Planter wall and parapet wall construction on the Observation Deck.

íP          Installation of winch & pulley system of proposed moveable ramp.  Formwork erection for the late cast roof slab.

íP          Eastern Bulkhead Wall, Panel BHP5 and BHP8 were concreted. Excavation for Panel BHP1 and BHP6.

íP          Dredging works at TWCR4 after passing the 1-month T&C period of the completed sewage outfall.

 

  1. During this reporting period, the major work activities for Contract no. HY/2009/15 included:

íP          Removal of eastern breakwater of CBTS

                         

  1. During this reporting period, the major work activities for Contract no. HK/2010/06 included:

íP          Pile Casing Cutting

íP          Sheet Piling Works

íP          Utility Diversion Works

íP          Precast Unit Box Construction (mainland China)

 

  1. During this reporting period, the major work activities for Contract no. HY/2009/19 included:

íP          D-wall Construction (North & South Section)

íP          Guide wall construction for D-wall / Barrette at North side

íP          Construction works for Box Culvert T1

íP          Marine Piling

íP          Construct ion of socket-H pile

íP          Construction works for Culvert U1

íP          Construction of Pile caps & columns (Land)

íP          Dismantling of marine platform

íP          Demolition of parapet at IEC Link

íP          Construction of Pile caps & columns (Marine)

íP          Construction of dewatering well for Cut & Cover Tunnel

íP          D8-D9 Gantry Fabrication for precast segment

íP          ELS for Cut & Cover Tunnel

 

  1. During this reporting period, the major work activities for Contract no. HK/2012/08 included:

íP          Site preparation works

íP          Site survey

 

Noise Monitoring

  1. Noise monitoring during daytime and restricted hour were conducted at the stations M1a, M2b, M3a, M4b, M5b and M6 on a weekly basis in the reporting month.
  2. No action and 4 limit level exceedances at M6 íV HK Baptist Church Henrietta Secondary School were recorded on 7, 12, 19 and 26 March 2013 in this reporting month. Execeedances on 7, 12 and 19 March 2013 were concluded as non-project related and exceedance on 26 March 2013 was concluded as Project related.

 

Real-time Noise Monitoring

  1. As the land-based piling and filling works- DP3 at Tin Hau had been completed on 3 September 2012 and confirmed by RSS, the real-time noise monitoring results at FEHD Hong Kong Transport Section Whitfield Depot was excluded under EP-356/2009 since 28 November 2012.
  2. The real-time noise monitoring at RTN2-Oil Street Community Liaison Centre has been relocated to City Garden Electric Centre (RTN2a- Electric Centre) on 5 Oct 2012, which is a representative of 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. 24-hour real time noise monitoring was conducted at RTN2a íV Hong Kong Electric Centre. No project related exceedance was recorded in the reporting month.

 

Air Quality Monitoring

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

CMA2a: from 4 Mar 2013 to 5 Mar 2013

  1. No exceedance was recorded in the reporting month.

 

 

 

Water Quality Monitoring

  1. Due to the blockage of the road access to C5e and C5w on 27 Mar 2013 during mid-flood tide the sample was taken under contingency C5 on 27 Mar 2013 during mid-flood.
  2. WDII/RSS advised that the dredging works for submarine pipeline at Victoria Harbour had been completed in January 2012. Therefore, the concurrent dredging activities at Sewage Pipeline Zone and reclamation shoreline zone TCBR under the EP-356/2009 scenario 2B no longer exist. As such, with reference to Table 5.39 of the EIA Report for Wan Chai Development Phase II and Central-Wan Chai Bypass, the application of silt screen for cooling water intakes for Queensway Government Offices was suspended and the others were remains unchanged.
  3. Based on the joint inspection on 4 Jan 2012 for the NPR area, the 4-week water quality monitoring at WSD9, WSD10, WSD15, WSD17, C8, C9 to confirm no water deterioration with respect to NPR was commenced since 7 Jan 2012 and was completed on 6 Feb 2012 water quality monitoring.
  4. Water quality monitoring at WSD10 and WSD15 will be temporary suspended while water quality monitoring at WSD9 and WSD17 was implemented with respect to HK/2009/02 from 8 Feb 12 onwards;
  5. Water quality monitoring at C8 and C9 have been implemented with respect to HY/2009/19 since the marine bore piling work started on 28 Jan 12.
  6. Based on the safety concern when external façade refurbishment was conducted by contractor employed by Provident Centre (C9) between 9 January 2012 to 30 July 2012 which caused to the inaccessibility of sampling either land and marine since 3 Feb 2012, there is a fine adjustment of the sampling location of water quality monitoring at C9 since 10 March 2012 to the closest accessible point prior to the completion of the external façade refurbishment work.
  7. Due to the access of water monitoring station at WSD19 was blocked by LCSD construction works from 3 April 2012 to 2 May 2012 and lead to the inaccessibility of sampling either land and marine, there is a fine adjustment of the sampling point of WSD 19 since 5 April 2012 to the closest accessible point prior to the completion of the construction activities.
  8. Due to the dredging works for Cross Harbour Water Mains from Wan Chai to Tsim Sha Tsui- DP6 was completed on 26 March 2012, the temporary suspension of impact water quality monitoring at WSD7 and WSD20 after 27 April 2012 for the water quality monitoring at WSD7 and WSD20 have been monitored for 4-week period after the completion of DP6 to confirm no water deterioration.
  9. Water quality monitoring at 14 monitoring stations was conducted three days per week during the reporting period. The action and limit level exceedances of water quality monitoring are summarized in Table I.

 


Table I    Summary of Water Quality Monitoring Exceedances in Reporting Month

 

Contract no.

Water Monitoring Station

Mid-flood

Mid-ebb

DO

Turbidity

SS

DO

Turbidity

SS

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

HK/2009/01

WSD19

0

0

1

0

0

0

0

0

0

1

0

2

 

C1

0

0

0

0

0

0

1

0

0

0

0

0

 

C3

1

2

0

0

0

0

1

1

0

0

0

0

 

C4e

1

0

0

0

1

0

0

0

0

0

0

0

 

C4w

1

0

0

0

0

0

0

0

0

0

0

1

Monitoring finished on 27 April 2012

WSD20

0

0

0

0

0

0

0

0

0

0

0

0

WSD7

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/01

& HK/2010/06

C2

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/02

C5e

0

0

0

0

0

0

0

0

0

0

1

0

 

C5w

0

0

1

0

0

0

0

0

0

0

0

0

Monitoring started on

8 Feb 2012

WSD21

0

0

0

0

0

1

0

0

0

0

0

2

WSD9

0

0

0

0

0

0

0

0

0

1

0

0

 

WSD17

0

0

1

0

0

0

0

0

0

0

0

0

HY/2009/15

C7

0

0

0

0

0

0

0

0

0

1

0

0

HY/2009/19

Monitoring started on 28 Jan 2012

C8

0

0

0

0

0

0

0

0

0

0

0

0

C9

0

0

0

1

0

0

0

0

0

0

0

0

Total

3

2

3

1

1

1

2

1

0

3

1

5

Remarks: -     The cessation of seawater intake operation for C6 was confirmed on 17 May 2011, the water monitoring at C6 was then terminated since 17 May 2011.

         -   WSD9 and WSD17 were implemented with respect to HK/2009/02 from 8 Feb 2012.

-   4-week water quality monitoring at WSD9, WSD10, WSD15, WSD17, C8 and C9 were completed on 6 Feb 2012.

-   C8 and C9 were implemented with respect to HY/2009/19 from 28 Jan 2012.

-   WSD7 and WSD20 water quality monitoring were temporarily suspended from 27 Apr 2012.

 

  1. Investigation found that the exceedances were not project-related. The details of the recorded exceedances can be referred to the Section 6.4.

 

  1. Enhanced DO monitoring at 4 monitoring stations in Causeway Bay Typhoon Shelter and Ex-Public Cargo Works Area was conducted three days per week during the reporting period. The action and limit level exceedances of water quality monitoring are summarized in Table II.

      


Table II   Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting Month

Contract no.

Water Monitoring Station

Mid-flood

Mid-ebb

DO

DO

AL

LL

AL

LL

HY/2009/15

C6

0

0

0

0

C7

0

0

0

0

Ex-WPCWA SW

0

2

0

1

Ex-WPCWA SE

2

2

0

4

Total

2

4

0

5

 

  1. There were 2 action level exceedances and 9 limit level exceedances of enhanced dissolved oxygen recorded in this reporting month. Investigation found that the exceedances are not related to the Project works. The details of the recorded exceedances can be referred to the Section 6.4.
  2. In response to the Condition 2.18 of the Environmental Permit no. EP-356/2009 requiring that a silt curtain / impermeable barrier system be installed to channel water discharge flow from Culvert L to locations outside the embayment area, a proposed replacement of the requirement with additional dissolved oxygen monitoring has been conducted at three monitoring stations, namely A, B and C between the eastern seawall of Central Reclamation Phase III and the HKCEC Extension since November 2011 under EP-356/2009 so that DO level between the eastern seawall of Central Reclamation Phase II and the HKCEC extension could be continuously monitored.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. One environmental complaint was received on 6 March 2013.
  2. A water quality complaint was received by ET on 6 March 2013 (ICC Ref. No: 1-407481502 dated 8 March 2013, forwarded by RSS). The complainant reported that dropping of fine rock material into surrounding waterbody was observed during rock breaking operation..
  3. ET confirmed with RSS that excavation works, installation of buoy, flashing light and silt curtain and dredging works were undertaken at Eastern Breakwater during the concerned period on 6 March 2013.
  4. Reviewing the photo record provided by RSS, the condition of the silt curtain deployed around the Eastern Breakwater on 6 March 2013 was found to be in good condition. It is considered that the silt curtain was properly in place during the concerned period and the concerned act of dropping of fine rock material was confined within the silt curtain boundary without adverse impact to the nearby water quality. Further follow up was conducted on 12 March 2013 during weekly environmental audit inspection, the silt curtain deployed around the concerned area was found to be maintained in good condition and the water quality at the concerned work area was generally satisfactory.
  5. The contractor was advised and committed to implement preventive measures to minimize the potential impact of work including conducting regular diver check to ensure the integrity and the extend of silt curtain deployment and to provide adequate back up stock of silt curtain for emergency use. The details of cumulative complaint log and updated summary of complaints are presented in Appendix 9.1.

 

 

Site Inspections and Audit

  1. The Environmental Team (ET) conducted weekly site inspections for Contract nos. HK/2009/01, HK/2009/02, HY/2009/15 HK/2010/06, HY/2009/19 and HK/2012/08 under EP no. EP-356/2009 in the reporting month. Major observations and recommendations made during the audit sessions were rectified by the Contractors. No non-conformance was identified during the site inspections.

Future Key Issues

  1. In coming reporting month, the principal work activities of individual contracts are anticipated as follows:

 

Contract no. HK/2009/01 - Wan Chai Development Phase II íV Central íVWanchai Bypass at HKCEC

Marine Works

íP          Rockfilling at east of HKCEC (up to -4.0mPD). Filling works up to +4.0mPD would be postponed due to the condition of maintaining the intakes of cooling system at HKCEC water channel (Portion 2).

íP          Installation of additional sheet pile wall for temporary open channel between CH220 and CH260.

íP          Shoring system for temporary open channel between CH290 and CH385. Subsequent steel bridge construction over the temporary open channel.

íP          Construction of mass concrete coping for new seawall.

íP          Installation of ELS for construction of proposed box culvert Bay 8 and Bay 9.

íP          Rockfilling and rock armour protection works to cross-harbour watermains.

íP          Installation of interim connecting pipe between existing main and the proposed pipeline.

íP          CCTV inspection for cross harbour watermains (including CHA, CHB, CHE & CHF) .

íP          Reinstatement works including demolition of existing chamber, ABWF and further tree transplantation would be commenced upon completion of testing and commissioning of proposed cross-harbour watermains and disconnection of existing watermain.

 

 

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

íP          Works at Zone B6-1A, B6-3, B6-4, B6-5B, A2-3A, A3-2B, A3-3C, C1-2 and X2-1.

íP          Mainlaying works at Zone A2-3A and A3-2B.

íP          Mainlaying works at Zone A3-3C.

íP          Mainlaying works in Zone C1-2.

íP          Mainlaying works for proposed sewerage system in Zone B6-1A.

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

íP          Final cleaning and sterilization for cross harbour watermains.

íP          Final inspection for CHWM (Wan Chai section) by WSD.

íP          Mainlaying works at Zone X2-1.

 

Tunnel Works

íP          Installation of pre-bored H-pile in CWB Stage 2 under the atrium link (from Ch120 to Ch220) .

íP          CWB diaphragm wall construction under the atrium link was currently.

íP          Trench cutter mobilizes to Site.

íP          Bulkhead Wall at Ch120.

 

E&M Works

íP          Full commissioning for Cooling Water Pumping Station P5.

 

 

Contract no. HK/2009/02 - Wan Chai Development Phase II íV Central íV Wan Chai Bypass at WanChai East

íP          Footpath reinstatement works of cooling mains near Harbour Centre / Great Eagle Centre.

íP          T&C and switch-over for the proposed cooling water intake system to CRB (P9)..

íP          Construct mini-piles and pile cap for rectifying the subsided intake pipes for both GE/HC and SHK.

íP          DN800 salt watermins (CHS8A) installation works inside Ex-pet Garden.

íP          Construction of Bay 1B and Bay 2B intake culvert.

íP          Installation for the proposed stoplog at Bay 2A.

íP          Excavation and prepare for connection with the existing DN600 salt watermains at Hung Hing Road.

íP          Reinstatement works of DSD receiving pit at Hung Hing Road.

íP          Decommissioning of the abandoned sewage outfall.

íP          Construction of Drain FRP-N (1050 dia. pipe) from the proposed Box Culvert N1 with the existing drainage system.

íP          Construction of Bay 4 of the proposed Box Culvert N1.

íP          ABWF, brickworks and parapet/planter wall construction in Ferry Pier.

íP          Installation of moveable ramp system.

íP          Civil works above the caisson seawall 2X including staircase ST-1 and the plant room underneath the staircase.

íP          Construction of Eastern Bulkhead wall.

íP          Dredging of TWCR4 dredging works.

 

 

 

Contract no. HY/2009/15 - Central-Wanchai Bypass íV Tunnel (Causeway Bay Typhoon Shelter Section)

íP          Removal of eastern breakwater of CBTS

íP          Installation of temporary wave protection barrier at eastern breakwater

 

Contract no. HK/2010/06 - Wan Chai Development Phase II íV Central íV Wan Chai Bypass over MTR Tsuen Wan Line

íP          Sheet Piling Works

íP          Utility Diversion Works

íP          Precast Unit Box Construction (mainland China)

 

Contract no. HY/2009/19- Wan Chai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link

íP          D-wall Construction (North & South Section)

íP          Construction works for Box Culvert T1

íP          Construction works for Culvert U1

íP          Construction of Pile caps & columns (Land)

íP          Dismantling of marine platform

íP          Demolition of parapet at IEC Link

íP          Construction of Pile caps & columns (Marine)

íP          D8-D9 Gantry Fabrication for precast segment

íP          ELS for Cut & Cover Tunnel

 

Contract no. HK/2012/08 íV Wan Chai Development Phase II íV Central- Wan Chai Bypass at Wan Chai West

íP          Hoarding erection

íP          Marine GI

 

1.         Introduction

1.1          Scope of the Report

1.1.1.     Lam Geotechnics Limited (LGL) has been appointed to work as the Environmental Team (ET) under Environmental Permit no. EP-356/2009 and Further Environmental permit nos. FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009, FEP-05/356/2009 and FEP-06/356/2009 to implement the Environmental Monitoring and Audit (EM&A) programme as stipulated in the EM&A Manual of the approved Environmental Impact Assessment (EIA) Report for Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) and in the EM&A Manual of the approved EIA Report for Central-Wan Chai Bypass and Island Eastern Corridor Link (Register No. AEIAR-014/2001).

1.1.2.     This report presents the environmental monitoring and auditing work carried out in accordance to the Section 10.3 of EM&A Manual and ížEnvironmental Monitoring and Audit RequirementsíĘ under Particular Specification Section 27.

1.1.3.     This report documents the finding of EM&A works for Environmental Permit no. EP-356/2009, Further Environmental Permit no. FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 and during the period of February 2013 to March 2013. The cut-off date of reporting is at 27th of each reporting month.

 

1.2          Structure of the Report

 

Section 1        Introduction íV details the scope and structure of the report.

 

Section 2        Project Background íV summarizes background and scope of the project, site description, project organization and contact details of key personnel during the reporting period.

 

Section 3        Status of Regulatory Compliance íV summarizes the status of valid Environmental Permits / Licenses during the reporting period.

 

Section 4        Monitoring Requirements íV summarizes all monitoring parameters, monitoring methodology and equipment, monitoring locations, monitoring frequency, criteria and respective event and action plan and monitoring programmes.

 

Section 5        Monitoring Results íV summarizes the monitoring results obtained in the reporting period.

 

Section 6        Compliance Audit íV summarizes the auditing of monitoring results, all exceedances environmental parameters.

 

Section 7        Cumulative Construction Impact due to the Concurrent Projects íV summarizes the relevant cumulative construction impact due to the concurrent activities of the concurrent Projects.

 

Section 8        Site Inspection íV summarizes the findings of weekly site inspections undertaken within the reporting period, with a review of any relevant follow-up actions within the reporting period.

 

Section 9        Complaints, Notification of summons and Prosecution íV summarizes the cumulative statistics on complaints, notification of summons and prosecution

 

Section 10       Conclusion

2.         Project Background

2.1          Background

2.1.1.     ížWan Chai Development phase II and Central-Wan Chai BypassíĘ and ížCentral-Wan Chai Bypass and Island Eastern Corridor LinkíĘ (hereafter called ížthe ProjectíĘ) are Designed Project (DP) under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO). The Environmental Impact Assessment (EIA) Reports for Central-Wan Chai Bypass and Island Eastern Corridor Link (Register No. AEIAR-041/2001) and Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) have been approved on 31 August 2001 and 11 December 2008 respectively.

2.1.2.     The key purpose of Wan Chai Development Phase II (WDII) is to provide land at Wan Chai North and North Point for construction of the Central-Wan Chai Bypass and Island Eastern Corridor Link (CWB). Land formed under the project will be developed as a world-class waterfront promenade joining that at the new Central waterfront for public enjoyment.

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

 

2.2          Scope of the Project and Site Description

2.2.1.     The Project is located mainly in Wan Chai North, Causeway Bay and North Point, and is demarcated by Gloucester Road and Victoria Park Road to the south, Fenwick Pier Street to the west and Tong Shui Road Interchange to the east, as shown in Figure 2.1.

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

2.2.3.     The scope of the Project comprises:

íP          Land formation for key transport infrastructure and facilities, including the Trunk Road (i.e. CWB) and the associated slip roads for connection to the Trunk Road and for through traffic from Central to Wan Chai and Causeway Bay. The land formed for the above transport infrastructure will provide opportunities for the development of an attractive waterfront promenade for the enjoyment of the public

íP          Reprovisioning / protection of the existing facilities and structures affected by the land formation works mentioned above

íP          Extension, modification, reprovisioning or protection of existing storm water drainage outfalls, sewerage outfalls and watermains affected by the revised land use and land formation works mentioned above

íP          Upgrading of hinterland storm water drainage system and sewerage system, which would be rendered insufficient by the land formation works mentioned above

íP          Provision of the ground level roads, flyovers, footbridges, necessary transport facilities and the associated utility services

íP          Construction of the new waterfront promenade, landscape works and the associated utility services

íP          The Trunk Road (i.e. CWB) within the study area and the associated slip roads for connection to the Trunk Road.

 

2.2.4.     The project also contains various Schedule 2 DPs that, under the EIAO, require Environmental Permits (EPs) to be granted by the DEP before they may be either constructed or operated. Table 2.1 summarises the five individual DPs under this Project. Figure 2.1 shows the locations of these Schedule 2 DPs.

Table 2.1      Schedule 2 Designated Projects under this Project

Item

Designated Project

EIAO Reference

Reason for inclusion

DP1

Central-Wanchai Bypass (CWB) including its road tunnel and slip roads

Schedule 2, Part I, A.1 and A.7

Trunk road and road tunnel more than 800 m in length

DP2

Road P2 and other roads which are classified as primary/district distributor roads

Schedule 2, Part I, A.1

Primary / district distributor roads

DP3

Reclamation works including associated dredging works

Schedule 2, Part I, C.1 and C.12

Reclamation more than 5 ha in size and a dredging operation less than 100 m from a seawater intake point

DP5

Wan Chai East Sewage Outfall

Schedule 2, Part I, F.5 and F.6

Submarine sewage pipelines with a total diameter more than 1,200 mm and include a submarine sewage outfall

DP6

Dredging for the Cross-harbour Water Mains from Wan Chai to Tsim Sha Tsui

Schedule 2, Part I, C.12

A dredging operation less than 100 m from a seawater intake point

 

2.3          Division of the Project Responsibility

2.3.1.     Due to the multi-contract nature of the Project, there are a number of contracts sub-dividing the whole works area into different work areas to be commenced. Contractors of individual contracts will be required by the EP holder to apply Further Environmental Permits (FEP) such that the impact monitoring stations are sub-divided accordingly to facilitate the implementation of EM&A programme and to streamline the EM&A reporting for individual FEP holders correspondingly.

2.3.2.     The details of individual contracts are summarized in Table 2.2.

 

 

 

Table 2.2 Details of Individual Contracts under the Project

Contract No.

Contract Title

Associated DP(s)

Construction Commencement Date

HK/2009/01

Wan Chai Development Phase II íV Central íVWanchai Bypass at Hong Kong Convention and Exhibition Centre

DP3, DP6

23 July 2010

DP1, DP2

25 August 2011

HK/2009/02

Wan Chai Development Phase II íV Central íV Wan Chai Bypass at WanChai East

DP3, DP5

5 July 2010

DP1

26 April 2011

HY/2009/11

Wan Chai Development Phase II and Central íV Wan Chai Bypass íV North Point Reclamation

DP3

17 March 2010

HY/2009/15

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

DP3

10 November 2010

DP1

13 July 2011

HK/2010/06

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

DP3

22 March 2011

04/HY/2006

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

DP1