Contract No: HK/2009/05

 

Wanchai Development Phase II and Central Wanchai Bypass

Sampling, Field Measurement and Testing Work (Stage 1)

 

Environmental Permit no. EP-356/2009,

Further Evironmental permit nos. fep-01/356/2009, fep-02/356/2009, FEP-03/356/2009, Fep-04/356/2009

and fep-05/356/2009

 

Quarterly Environmental Monitoring
and Audit Report

 

- June to August 2011 -

 

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:

 

 

21 September 2011

Table of contents

 

EXECUTIVE SUMMARY. 4

1.   Introduction. 9

1.1    Scope of the Report 9

1.2    Structure of the Report 9

2.   Project Background. 10

2.1    Background. 10

2.2    Scope of the Project and Site Description. 10

2.3    Division of the Project Responsibility. 11

2.4    Project Organization and Contact Personnel 12

2.5    Principle Work and Activities. 14

3.   Monitoring Requirements. 18

3.1.    Noise Monitoring. 18

3.2.    Air Monitoring. 19

3.3.    Water Quality Monitoring. 21

4.   Monitoring Results. 24

4.1.    Noise Monitoring Results. 24

4.2.    Real Time Noise Monitoring Results. 25

4.3.    Air Monitoring Results. 25

4.4.    Water Monitoring Results. 27

4.5.    Waste Monitoring Results. 30

5.   Compliance Audit. 35

5.1.    Noise Monitoring. 35

5.2.    Real-time Noise Monitoring. 35

5.3.    Air Monitoring. 35

5.4.    Water Quality Monitoring. 35

5.5.    Site Audit 36

5.6.    Review of the Reasons for and the Implications of Non-compliance. 36

5.7.    Summary of action taken in the event of and follow-up on non-compliance. 36

6.   Complaints, Notification of Summons and Prosecution. 36

7.   Cumulative Construction Impact due to the Concurrent Projects. 42

8.   Conclusion. 43


lIST OF TABLES

 

Table I        Principle Work Activities for Contract no. HY/2009/11

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

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

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

Table V       Principle Work Activities for Contract no. HK/2010/06

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      Principle Work Activities for Contract no. HY/2009/11

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

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

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

Table 2.8      Principle Work Activities for Contract no. HK/2010/06

Table 3.1     Noise Monitoring Stations

Table 3.2     Real Time Noise Monitoring Station

Table 3.3     Air Monitoring Stations

Table 3.4      Marine Water Quality Stations for Water Quality Monitoring

Table 3.5     Marine Water Quality Monitoring Frequency and Parameters

Table 3.6      Marine Water Quality Stations for Enhanced Water Quality Monitoring

Table 4.1      Noise Monitoring Stations for Contract no. HY/2009/11

Table 4.2      Noise Monitoring Station 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     Real Time Noise Monitoring Station for Contract no. HY/2009/11

Table 4.5     Air Monitoring Stations for Contract no. HY/2009/11

Table 4.6      Air Monitoring Stations for Contract no. HK/2009/01

Table 4.7      Air Monitoring Station for Contract no. HK/2009/02

Table 4.8      Air Monitoring Station for Contract no. HY/2009/15

Table 4.9     Water Monitoring Stations for Contract no.  HY/2009/11

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

Table 4.11     Water Monitoring Stations for Contract no. HK/2009/02

Table 4.12     Water Monitoring Stations for Contract no. HK/2010/06

Table 4.13     Water Monitoring Stations for Contract no. HY/2009/15

Table 4.14     Summary of Water Quality Monitoring Exceedances in Reporting Quarter

Table 4.15    Details of Waste Disposal for Contract no. HY/2009/11

Table 4.16    Details of Waste Disposal for Contract no. HK/2009/01

Table 4.17    Details of Waste Disposal for Contract no. HK/2009/02

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

Table 4.19    Details of Waste Disposal for Contract no. HK/2010/06

Table 5.1     Summary of Water Quality Monitoring Exceedances in Reporting Quarter

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 3.2   Report of Review Baseline Noise Level

Appendix 3.3   Report on Noise Level Review for Real-time Noise Monitoring during Night Time

Appendix 4.1   Noise Monitoring Graphical Presentations

Appendix 4.2   Air Quality Monitoring Graphical Presentations

Appendix 4.3   Water Quality Monitoring Graphical Presentations

Appendix 4.4   Real-time Noise Monitoring Results and Graphical Presentations

Appendix 5.1   Event Action Plans

Appendix 6.1   Complaint Log

Appendix 8.1   Construction Programme of Individual Contracts

EXECUTIVE SUMMARY

  1. This is the Quarterly Environmental Monitoring and Audit (EM&A) Report  /span> June to August 2011 prepared for the Project of Wan Chai Development Phase II and Central-Wanchai Bypass under Environmental Permit no. EP-356/2009 and Further Environmental permit nos. FEP-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009. This report presents the environmental monitoring and audit findings and information during the period from 28th May to 27th August 2011. The cut-off date of reporting is at 27th of each reporting quarter.

 

Construction Activities for the Reported Period

  1. During this reporting period, the principle work activities for Contract no. HY/2009/11 are summarized as below:

Table I     Principle Work Activities for Contract no. HY/2009/11

June 2011

July 2011

August 2011

Ÿ     Reclamation works;

Ÿ     Concreting;

Ÿ     Slotted panel fixing;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works;

Ÿ     Construction & installation of Concrete Block; and

Ÿ    Installation of Caisson Seawall

Ÿ     Reclamation works;

Ÿ     formworks erection for the pocket of buoyancy tanks;

Ÿ     Sealed the gap between installed caisson seawalls;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works (Open Channel U); and

Ÿ     Installation of Caisson Seawall. 

Ÿ     Reclamation works;

Ÿ     Geo-textile laying;

Ÿ     Formworks erection for the pocket of buoyancy tanks;

Ÿ     Sealed the gap between installed caisson seawalls; and

Ÿ    Drainage Construction works.

 

  1. During this reporting period, the principle work activities for Contract no. HK/2009/01 are summarized as below:

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

June 2011

July 2011

August 2011

Ÿ     Reclamation works of HKCEC water Channel;

Ÿ     Assembly of jack-up barge at Tsim Sha Tsui;

Ÿ     Installation of sheet pile water channel at Dome Promenade;

Ÿ     Removal of rock armours within the HKCEC Water Channel;

Ÿ     Installation of cross-harbour water mains nos. B2 & As;

Ÿ     Thrust block construction for cross-harbour watermains nos. A1 & B1 was commenced on 7 Jun 2011 when the steel formwork was installed into its working position;

Ÿ     Trench excavations for proposed pipe laying works in Convention Avenue, VIP Drop-off Area;

Ÿ     Mainlaying works at Zone B1-2 had been completed and the road reinstatement works;

Ÿ     Mainlaying works at Zone B1-5;

Ÿ     Mainlaying works at Zone A4-3A;

Ÿ     Backfilling works for Temporary diversion of 2nos. DN900 cooling water discharge pipes of Convention Plaza;

Ÿ     The fenced off area at Zone B4-2 would be continued as a water tank establishment area for cross harbour watermains installation until the original seawall had been reinstated; and

Ÿ     Utility diversion works for conflicting utilities at Salisbury Garden of Tsim Sha Tsui

Ÿ     Reclamation works of HKCEC Water Channel;

Ÿ     Assembly of jack-up barge at Tsim Sha Tsui;

Ÿ     Installation of sheet pile Water Channel at Dome Promenade;

Ÿ     Removal of rock armours within the HKCEC Water Channel;

Ÿ     Installation of cross-harbour water mains nos. A3 & A4, B3 and B4 were completed;

Ÿ     Thrust block construction for cross-harbour watermains nos. A2 & B2 was completed; Platform erection for crawler crane mobilization near the existing seawall at Salisbury Garden was in progress. Grouting works would be carried out stoutly to stabilize the existing waterworks before commencing the mentions crawler crane mobilization;

Ÿ     Trench excavations for proposed pipe laying works in Convention Avenue, VIP Drop-off Area;

Ÿ     Trench for temporary diversion of 2nos. DN900 cooling water discharge pipes of Convention Plaza had been backfilled and reinstated; and

Ÿ     The fenced off area at VIP Drop-off Area near seawall would be continued as a water tank establishment area for cross harbor watermains installation until the original seawall had been reinstated and subsequent relocation of the mentioned water tanks.

 

Ÿ     Trench backfilling and seawall reinstatement for the completed cross-harbour watermains and the existing seawall near Expo Promenade;

Ÿ     Reclamation of HKCEC1 within the HKCEC Water Channel;

Ÿ     Installation of sheet pile water channel at Dome Promenade;

Ÿ     Installation of cross-harbour watermains nos. A5 & B5, A6 & B6 and A7 were completed;

Ÿ     Site clearance works at Zone B2-1 was commenced and the HKCEC logo was removed. Such clearance was for the re-provision of loading and unloading area for HKCEC at the time when Zone B1-4 was being fencing off for the proposed mainlaying works;

Ÿ     Mainlaying works and the subsequent carriageway reinstatement in Zone A4-3A and A5-1;

Ÿ     Temporary trench reinstatement works in Zone A1-1 and Zone A2-2 had been completed;

Ÿ     Mainlaying works at Zone A4-1 and B1-5;

Ÿ     After the completion of reinstatement works at Zone B1-5, mainlaying works at Zone B1-4;

Ÿ     Trench reinstatement works in Zone A3-3; and

Ÿ     A substantial change in TTA along Convention Avenue was implemented. The trench excavation works at Zone B4-2 was resumed.

 

  1. During this reporting period, the principle work activities for Contract no. HK/2009/02 are summarized as below:

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

June 2011

July 2011

August 2011

Ÿ       Tseung Kwan O public fill sorting facility 31,000m3 sorted fill produced this month;

Ÿ      Internal and external decoration for new public toilet;

Ÿ      FEHD pre-inspection of new public toilet;

Ÿ      Modification works for disable toilet;

Ÿ      Modification of hoarding and reinstatement works for public toilet opening was carried out;

Ÿ      Basement structure and ground floor slab of passenger terminal building;

Ÿ      Modification of existing finger pier deck and tree pits;

Ÿ      Stripping interior fixing of existing ferry pier at Expo Drive East;

Ÿ      Erection of bamboo scaffolding;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Pipe jacking across Harbour Road;

Ÿ      Approximate 18m cooling mains was laid at Harbour Road and adjacent to Harbour Centre in this reporting period;

Ÿ      Excavation and lateral support for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Laying blinding layer for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Hacking H-pile head for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Excavation and lateral support at Wan Shing Street;

Ÿ      Dredging for submarine outfall pipe;

Ÿ      Approximate 180m HDPE pipe was laid;

Ÿ      Modification of ELS and formwork for top slab of DSD extension chamber;

Ÿ      Marine piling works for new ferry pier was ongoing. 43 out of 83 nos. marine piles and

Ÿ      Excavation and lateral support for WSD & DSD receiving pits

Ÿ      Tseung Kwan O public fill sorting facility 99565 m3 sorted fill produced this month;

Ÿ      FEHD final inspection of new public toilet was conduct and the public toilet was handed over to FEHD;

Ÿ      Demolition of gangway in Finger Pier was completed;

Ÿ      Stripping interior fixing of existing ferry pier at Expo Drive East;

Ÿ      Continue SI works for NB2 footing at Expo Drive East;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Approximate 110 m cooling mains was laid at Great Eagle, Harbour Centre and Harbour Road area;

Ÿ      Hacking of H-pile head for WSD Salt Water Pumping Station;

Ÿ      Base slab of WSD Salt Water Pumping Station was cased on 13 July 2011 at -4.52 mPD;

Ÿ      Excavation and lateral support at Wan Shing Street;

Ÿ      Dredging for submarine outfall pipe was ongoing;

Ÿ      Marine piling works for new ferry pier was ongoing. 78 out of 83 nos. marine piles were completed as of 20 July 2011;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Gas main diversion at WSD receiving pits;

Ÿ      Setting up TBM machine was substantially completed;

Ÿ      Lean concrete works for P9 pumping Station was commenced;

Ÿ      4 no. of pre-bored H piling works of WSD Salt Water Intake culvert at new seawall area was completed; and

Ÿ      SI works for Box Culvert N1 was completed at WCR1 area.

 

Ÿ      Tseung Kwan O public fill sorting facility 18,615.6 m3 sorted fill produced this month;

Ÿ      Rectification of Public Toilet external cladding and louver;

Ÿ      Dismantle steel scaffolding in Finger Pier;

Ÿ      Demolition of gangway in Finger Pier;

Ÿ      Erection of bamboo scaffolding in Finger Pier;

Ÿ      Fixing PVC conduit of C1, C2, C6 & C7 column of G/F in Passenger Terminal Building;

Ÿ      Connection of C.I pipe for G/F Passenger Terminal Building;

Ÿ      Air testing on the C.I pipe at the toilet area Passenger Terminal Building;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Hydraulic pressure test of P.E pipe along Tonnochy Road;

Ÿ      Breaking concrete slab of bus bay;

Ÿ      Approximate 60m cooling mains was laid at Great Eagle, Harbour Centre and Harbour Road area;

Ÿ      PVC and G.I cable pipe duct was installed at Great Eagle and Harbour Centre;

Ÿ      4th layer struts and 3rd layer struts of WSD Salt Water Pumping Station were dismantled;

Ÿ      Welding test for 3rd layer railing and strut at the Wan Shing Street receiving pit;

Ÿ      Dredging for submarine outfall pipe was ongoing;

Ÿ      Marine piling works for new ferry pier was ongoing. 79 out of 83 nos. marine piles were completed;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Gas main diversion at WSD receiving pits;

Ÿ      Lean concrete works for P9 pumping Station; and

Ÿ     Complete connection chamber at DSD Screening Plant.

 

  1. Contract no. HY/2009/15 was commenced on 10 November 2010. During this reporting period, the principle work activities for Contract no. HY/2009/15 are summarized as below:

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

June 2011

July 2011

August 2011

Ÿ      Dredging of odorous sediment at TS4;

Ÿ      Seawall block construction at TS4;

Ÿ      Maintenance of navigation channel;

Ÿ      Diaphragm wall preparation work at TS1 and TPCWAE;

Ÿ      Grouting works at Abutment A;

Ÿ      Night time protection works at CHT; and

Ÿ      Trial trench work at Hung Hing Road and POC

Ÿ      Seawall block construction and filling preparation works at TS4;

Ÿ      Maintenance of navigation channel;

Ÿ      Night time protection works at CHT; and

Ÿ      Trial trench work at Hung Hing Road and POC

 

Ÿ      Seawall block construction and reclamation work at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area;

Ÿ      Night time protection works at CHT;

Ÿ      Trial trench work at Hung Hing Road and POC; and

Ÿ      Precautionary works at Abutment A

 

 

  1. Contract no. HK/2010/06 was commenced on 22 March 2011. During this reporting period, the principle work activities for Contract no. HK/2010/06 are summarized as below:

Table V    Principle Work Activities for Contract no. HK/2010/06

March 2011

April 2011

May 2011

Ÿ      Erection of Staging Platform; and

Ÿ      Marine Bored Piling

 

Ÿ      Erection of Staging Platform; and

Ÿ      Marine Bored Piling

 

 

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works; and

Ÿ      Installation of temporary staging platforms

 

Noise Monitoring

  1. Noise monitoring during day time and evening time were conducted at the M1a, M2b, M3a, M4b and M5b on a weekly basis in the reporting quarter. The Action and Limit level exceedances recorded in the reporting quarter are listed below. Investigation found that exceedances were not related to the Project. Investigation found that exceedances were not related to the Project.

Ÿ             Ten limit level exceedances at M1a on 2, 8, 14 and 24 and 29 June, 5, 13, 19 and 25 July 2011 and 22 August 2011 during the evening time period; and

Ÿ             Seven Action levels were recorded due to seven recorded noise complaints on 10, 23 and 27 July 2011, 8 and 26 August 2011.

 

Real-time Noise Monitoring

  1. Real-time noise monitoring at FEHD Hong Kong Transport Section Whitefield Depot and Oil Street Community Centre have been commenced on 5 October 2010 for the filling works of Contract no. HY/2009/11 and HY/2009/15.  /span>No project-related exceedance was recorded in the reporting quarter.

 

Air Quality Monitoring

  1. 1hr and 24hr TSP monitoring were conducted at CMA1b, CMA2a, CMA3a, CMA4a, CMA5a and CMA6a in the reporting quarter. No exceedance was recorded during the reporting quarter.

 

  1. The odour patrol along the odour route with 8 sniffing locations was conducted by a qualified odour patrol member on 11, 25 July, 4 and 23 August 2011 at the concerned hours (afternoon for higher daily temperature). The odour intensity detected at 8 locations was found to be from level 0 up to level 1 which were below the Action Level.

 

Water Quality Monitoring

  1. Water quality monitoring was conducted at 18 monitoring stations namely WSD7, WSD9, WSD10, WSD15, WSD17, WSD19, WSD20, WSD 21, C1, C2, C3, C4e, C4w, C5e, C5w, C7, C8 and C9 during the reporting period.

 

  1. Total 4 turbidity exceedances and 9 SS exceedances were recorded during mid-flood while 2 DO exceedances, 4 turbidity exceedances and 11 SS exceedances were recorded during mid-ebb in the reporting period. Investigations were found that all exceedances are not related to the Project works. The details of the recorded exceedances can be referred to the Section 5.4.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. There were ten environmental complaints recorded in the reporting quarter. Investigations revealed that the complaints were followed-up and preventive actions were recommended to the Contractor. Details can be referred to the Section 6.0.

 

 

 

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-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 to implement the Environmental Monitoring and Audit (EM&A) programme as stipulated in the EM&A Manual of the approved Environmental Impact Assessment (EIA) Report for Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) and in the EM&A Manual of the approved EIA Report for Central-Wan Chai Bypass and Island Eastern Corridor Link (Register No. AEIAR-014/2001).

1.1.2.        This report presents the environmental monitoring and auditing work carried out in accordance to the Section 10.4 of EM&A Manual and  /span>Environmental Monitoring and Audit Requirements /span> under Particular Specification Section 27.

1.1.3.        This report documents the finding of EM&A works during the period from 28th May to 27th August 2011.

1.2               Structure of the Report

 

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

 

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

 

Section 3     Monitoring Requirements  summarizes all monitoring parameters, monitoring locations, monitoring frequency, duration and action plan.

 

Section 4     Monitoring Results  summarizes the monitoring results obtained in the reporting period.

 

Section 5     Compliance Audit  summarizes the auditing of monitoring results, all exceedances environmental parameters.

 

Section 6     Complaints, Notification of summons and Prosecution   summarizes the cumulative statistics on complaints, notification of summons and prosecution

 

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

 

Section 8     Conclusion

2.     Project Background

2.1               Background

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

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

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

 

2.2               Scope of the Project and Site Description

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

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

2.2.3.        The scope of the Project comprises:

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

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

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

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

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

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

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

 

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

Table 2.1   Schedule 2 Designated Projects under this Project

Item

Designated Project

EIAO Reference

Reason for inclusion

DP1

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

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

Trunk road and road tunnel more than 800 m in length

DP2

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

Schedule 2, Part I, A.1

Primary / district distributor roads

DP3

Reclamation works including associated dredging works

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

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

DP5

Wan Chai East Sewage Outfall

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

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

DP6

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

Schedule 2, Part I, C.12

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

 

 

2.3               Division of the Project Responsibility

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

2.3.2.        In the reporting period, Contract no. HK/2010/06 - Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen Wan Line under the Project was commenced on 22 March 2011. The details of individual contracts are summarized in Table2.2.

Table 2.2  Details of Individual Contracts under the Project

Contract No.

Contract Title

Associated DP(s)

Construction Commencement Date

HK/2009/01

Wan Chai Development Phase II  Central –Wanchai Bypass at Hong Kong Convention and Exhibition Centre

DP3, DP6

23 July 2010

DP1, DP2

25 August 2011

HK/2009/02

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

DP3, DP5

5 July 2010

DP1

26 April 2011

HY/2009/11

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

DP3

17 March 2010

HY/2009/15

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

DP3

10 November 2010

HK/2010/06

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

DP3

22 March 2011

 

2.4               Project Organization and Contact Personnel

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

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

Table 2.3  Contact Details of Key Personnel

Party

Role

Post

Name

Contact No.

Contact Fax

AECOM

Engineer for WDII

Principle Resident Engineer

Mr. Frankie Fan

2587 1778

2587 1877

Engineer for CWB

Principle Resident Engineer

Mr. Peter Poon

3916 1818

3529 2829

China Harbour- CRBC Joint Venture

Contractor under Contract no. HY/2009/11

Project Director

Mr. Cho Yu Fun

3157 1086

3157 1085

Project Manager

Mr. Gregory Wong

3157 1086

Site Agent

Mr. Daniel Cheung

3157 1086

Environmental Officer

Mr. C. M. Wong

3157 1086

Chun Wo  Leader Joint Venture

Contractor under Contract no. HK/2009/01

Site Agent

Mr. Paul Yu

9456 9819

2634 1626

Operation Manager

Mr. Lau Yee Ching

9466 3918

Construction Manager

Mr. Jerry Siu

9493 3664

Construction Manager

Mr. Ricky Lai

9487 6549

Construction Manager

Mr. KK Yuen

3498 1213

Environmental Officer (Compliance Manager)

Mr. Andy Mak

9103 2370

Chun Wo  CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Project Manager

Mr. Chan Sing Cho

3658 3002

2827 9996

Site Agent

Mr. Eric Lam

3658-3048

Environmental Manager

Mr. C.P. Ho

3658-3000

Environmental Officer

Ms. Flora Ng

3658-3064

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Manager

Mr. M Y Wong

2823 7879

2528 5651

Site Agent

Mr. Simon Tang

3557 6358

2566 2192

 

 

Construction Manager

Mr. C K Kwok

9779 2162

 

 

 

Assistant Construction Manager (East)

Mr. Gene Cheung

6105 4880

 

 

 

Assistant Construction Manager (West)

Mr. Tony Chiu

9090 0606

 

 

 

Section Agent (West)

Mr. Tang Ka Tung

9473 4771

 

 

 

Environmental Manager

Mr. Samuel Tsui

3557 6347

 

 

 

Environmental Officer

Mr. Daniel Sin

3557 6215

 

Gammon

-Leader JV

Contractor under Contract no. HK/2010/06

Manager

Mr. Simon Tong

9124 2471

2529 2880

Site Agent

Mr. Keith Tse

2529 2068

Environmental Officer

Mr. Lee Wai Man

9481 6024

ENVIRON Hong Kong Limited

Independent Environmental Checker (IEC)

Independent Environmental Checker (IEC)

Mr. David Yeung

3743 0788

3548 6988

Lam Geotechnics Limited

Environmental Team (ET)

Environmental Team Leader (ETL)

Mr. Raymond Dai

2882 3939

2882 3331

 

2.5               Principle Work and Activities

2.5.1.        During this reporting period, the principle work activities for Contract no. HY/2009/11 are summarized in Table2.4.

Table 2.4   Principle Work Activities for Contract no. HY/2009/11

June 2011

July 2011

August 2011

Ÿ     Reclamation works;

Ÿ     Concreting;

Ÿ     Slotted panel fixing;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works;

Ÿ     Construction & installation of Concrete Block; and

Ÿ    Installation of Caisson Seawall

Ÿ     Reclamation works;

Ÿ     formworks erection for the pocket of buoyancy tanks;

Ÿ     Sealed the gap between installed caisson seawalls;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works (Open Channel U); and

Ÿ     Installation of Caisson Seawall. 

Ÿ     Reclamation works;

Ÿ     Geo-textile laying;

Ÿ     Formworks erection for the pocket of buoyancy tanks;

Ÿ     Sealed the gap between installed caisson seawalls; and

Ÿ    Drainage Construction works.

 

2.5.2.        During this reporting period, the principle work activities for Contract no. HK/2009/01 are summarized in Table 2.5.

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

June 2011

July 2011

August 2011

Ÿ     Reclamation works of HKCEC water Channel;

Ÿ     Assembly of jack-up barge at Tsim Sha Tsui;

Ÿ     Installation of sheet pile water channel at Dome Promenade;

Ÿ     Removal of rock armours within the HKCEC Water Channel;

Ÿ     Installation of cross-harbour water mains nos. B2 & As;

Ÿ     Thrust block construction for cross-harbour watermains nos. A1 & B1 was commenced on 7 Jun 2011 when the steel formwork was installed into its working position;

Ÿ     Trench excavations for proposed pipe laying works in Convention Avenue, VIP Drop-off Area;

Ÿ     Mainlaying works at Zone B1-2 had been completed and the road reinstatement works;

Ÿ     Mainlaying works at Zone B1-5;

Ÿ     Mainlaying works at Zone A4-3A;

Ÿ     Backfilling works for Temporary diversion of 2nos. DN900 cooling water discharge pipes of Convention Plaza;

Ÿ     The fenced off area at Zone B4-2 would be continued as a water tank establishment area for cross harbour watermains installation until the original seawall had been reinstated; and

Ÿ     Utility diversion works for conflicting utilities at Salisbury Garden of Tsim Sha Tsui

Ÿ     Reclamation works of HKCEC Water Channel;

Ÿ     Assembly of jack-up barge at Tsim Sha Tsui;

Ÿ     Installation of sheet pile Water Channel at Dome Promenade;

Ÿ     Removal of rock armours within the HKCEC Water Channel;

Ÿ     Installation of cross-harbour water mains nos. A3 & A4, B3 and B4 were completed;

Ÿ     Thrust block construction for cross-harbour watermains nos. A2 & B2 was completed; Platform erection for crawler crane mobilization near the existing seawall at Salisbury Garden was in progress. Grouting works would be carried out stoutly to stabilize the existing waterworks before commencing the mentions crawler crane mobilization;

Ÿ     Trench excavations for proposed pipe laying works in Convention Avenue, VIP Drop-off Area;

Ÿ     Trench for temporary diversion of 2nos. DN900 cooling water discharge pipes of Convention Plaza had been backfilled and reinstated; and

Ÿ     The fenced off area at VIP Drop-off Area near seawall would be continued as a water tank establishment area for cross harbor watermains installation until the original seawall had been reinstated and subsequent relocation of the mentioned water tanks.

 

Ÿ     Trench backfilling and seawall reinstatement for the completed cross-harbour watermains and the existing seawall near Expo Promenade;

Ÿ     Reclamation of HKCEC1 within the HKCEC Water Channel;

Ÿ     Installation of sheet pile water channel at Dome Promenade;

Ÿ     Installation of cross-harbour watermains nos. A5 & B5, A6 & B6 and A7 were completed;

Ÿ     Site clearance works at Zone B2-1 was commenced and the HKCEC logo was removed. Such clearance was for the re-provision of loading and unloading area for HKCEC at the time when Zone B1-4 was being fencing off for the proposed mainlaying works;

Ÿ     Mainlaying works and the subsequent carriageway reinstatement in Zone A4-3A and A5-1;

Ÿ     Temporary trench reinstatement works in Zone A1-1 and Zone A2-2 had been completed;

Ÿ     Mainlaying works at Zone A4-1 and B1-5;

Ÿ     After the completion of reinstatement works at Zone B1-5, mainlaying works at Zone B1-4;

Ÿ     Trench reinstatement works in Zone A3-3; and

Ÿ     A substantial change in TTA along Convention Avenue was implemented. The trench excavation works at Zone B4-2 was resumed.

 

2.5.3.        During this reporting period, the principle work activities for Contract no. HK/2009/02 are summarized in Table 2.6.

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

June 2011

July 2011

August 2011

Ÿ       Tseung Kwan O public fill sorting facility 31,000m3 sorted fill produced this month;

Ÿ      Internal and external decoration for new public toilet;

Ÿ      FEHD pre-inspection of new public toilet;

Ÿ      Modification works for disable toilet;

Ÿ      Modification of hoarding and reinstatement works for public toilet opening was carried out;

Ÿ      Basement structure and ground floor slab of passenger terminal building;

Ÿ      Modification of existing finger pier deck and tree pits;

Ÿ      Stripping interior fixing of existing ferry pier at Expo Drive East;

Ÿ      Erection of bamboo scaffolding;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Pipe jacking across Harbour Road;

Ÿ      Approximate 18m cooling mains was laid at Harbour Road and adjacent to Harbour Centre in this reporting period;

Ÿ      Excavation and lateral support for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Laying blinding layer for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Hacking H-pile head for WSD Salt Water Pumping Station at Wan Shing Street;

Ÿ      Excavation and lateral support at Wan Shing Street;

Ÿ      Dredging for submarine outfall pipe;

Ÿ      Approximate 180m HDPE pipe was laid;

Ÿ      Modification of ELS and formwork for top slab of DSD extension chamber;

Ÿ      Marine piling works for new ferry pier was ongoing. 43 out of 83 nos. marine piles and

Ÿ      Excavation and lateral support for WSD & DSD receiving pits

Ÿ      Tseung Kwan O public fill sorting facility 99565 m3 sorted fill produced this month;

Ÿ      FEHD final inspection of new public toilet was conduct and the public toilet was handed over to FEHD;

Ÿ      Demolition of gangway in Finger Pier was completed;

Ÿ      Stripping interior fixing of existing ferry pier at Expo Drive East;

Ÿ      Continue SI works for NB2 footing at Expo Drive East;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Approximate 110 m cooling mains was laid at Great Eagle, Harbour Centre and Harbour Road area;

Ÿ      Hacking of H-pile head for WSD Salt Water Pumping Station;

Ÿ      Base slab of WSD Salt Water Pumping Station was cased on 13 July 2011 at -4.52 mPD;

Ÿ      Excavation and lateral support at Wan Shing Street;

Ÿ      Dredging for submarine outfall pipe was ongoing;

Ÿ      Marine piling works for new ferry pier was ongoing. 78 out of 83 nos. marine piles were completed as of 20 July 2011;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Gas main diversion at WSD receiving pits;

Ÿ      Setting up TBM machine was substantially completed;

Ÿ      Lean concrete works for P9 pumping Station was commenced;

Ÿ      4 no. of pre-bored H piling works of WSD Salt Water Intake culvert at new seawall area was completed; and

Ÿ      SI works for Box Culvert N1 was completed at WCR1 area.

 

Ÿ      Tseung Kwan O public fill sorting facility 18,615.6 m3 sorted fill produced this month;

Ÿ      Rectification of Public Toilet external cladding and louver;

Ÿ      Dismantle steel scaffolding in Finger Pier;

Ÿ      Demolition of gangway in Finger Pier;

Ÿ      Erection of bamboo scaffolding in Finger Pier;

Ÿ      Fixing PVC conduit of C1, C2, C6 & C7 column of G/F in Passenger Terminal Building;

Ÿ      Connection of C.I pipe for G/F Passenger Terminal Building;

Ÿ      Air testing on the C.I pipe at the toilet area Passenger Terminal Building;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Hydraulic pressure test of P.E pipe along Tonnochy Road;

Ÿ      Breaking concrete slab of bus bay;

Ÿ      Approximate 60m cooling mains was laid at Great Eagle, Harbour Centre and Harbour Road area;

Ÿ      PVC and G.I cable pipe duct was installed at Great Eagle and Harbour Centre;

Ÿ      4th layer struts and 3rd layer struts of WSD Salt Water Pumping Station were dismantled;

Ÿ      Welding test for 3rd layer railing and strut at the Wan Shing Street receiving pit;

Ÿ      Dredging for submarine outfall pipe was ongoing;

Ÿ      Marine piling works for new ferry pier was ongoing. 79 out of 83 nos. marine piles were completed;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Gas main diversion at WSD receiving pits;

Ÿ      Lean concrete works for P9 pumping Station; and

Ÿ     Complete connection chamber at DSD Screening Plant.

 

2.5.4.        Major construction activities for Contract no. HY/2009/15 was commenced on 10 November 2010. During this reporting period, the principle work activities for Contract no. HY/2009/15 are summarized as below:

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

June 2011

July 2011

August 2011

Ÿ      Dredging of odorous sediment at TS4;

Ÿ      Seawall block construction at TS4;

Ÿ      Maintenance of navigation channel;

Ÿ      Diaphragm wall preparation work at TS1 and TPCWAE;

Ÿ      Grouting works at Abutment A;

Ÿ      Night time protection works at CHT; and

Ÿ      Trial trench work at Hung Hing Road and POC

Ÿ      Seawall block construction and filling preparation works at TS4;

Ÿ      Maintenance of navigation channel;

Ÿ      Night time protection works at CHT; and

Ÿ      Trial trench work at Hung Hing Road and POC

 

Ÿ      Seawall block construction and reclamation work at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area;

Ÿ      Night time protection works at CHT;

Ÿ      Trial trench work at Hung Hing Road and POC; and

Ÿ      Precautionary works at Abutment A

 

 

2.5.5.        Contract no. HK/2010/06 was commenced on 22 March 2011. During this reporting period, the principle work activities for Contract no. HK/2010/06 are summarized as below:

Table 2.8   Principle Work Activities for Contract no. HK/2010/06

June 2011

July 2011

August 2011

Ÿ      Erection of Staging Platform; and

Ÿ      Marine Bored Piling

 

Ÿ      Erection of Staging Platform; and

Ÿ      Marine Bored Piling

 

 

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works; and

Ÿ      Installation of temporary staging platforms

 

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 Stations

Station

Description

M1a

Harbour Road Sports Centre

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

M4b

Victoria Centre

M5b

City Garden

M6

HK Baptist Church Henrietta Secondary School

 

Real time Noise Monitoring Stations

3.1.1.        The noise monitoring stations for the Project are listed and shown in Table 3.2 and Figure 3.1.. Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.2  Real Time Noise Monitoring Station

District

Station

Description

Tin Hau

RTN1

FEHD Hong Kong Transport Section Whitefield Depot

North Point

RTN2

Oil Street Community Liaison Centre

 

Noise Monitoring Parameters, Frequency and Duration

3.1.2.        The construction noise level shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq). Leq (30 minutes) shall be used as the monitoring parameter for the time period between 0700 and 1900 hours on normal weekdays. For all other time periods, Leq (5 minutes) shall be employed for comparison with the Noise Control Ordinance (NCO) criteria. Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

3.1.3.        Noise monitoring shall be carried out at all the designated monitoring stations. The monitoring frequency shall depend on the scale of the construction activities. The following is an initial guide on the regular monitoring frequency for each station on a weekly basis when noise generating activities are underway:

 -           one set of measurements between 0700 and 1900 hours on normal weekdays.

3.1.4.        If construction works are extended to include works during the hours of 1900  0700 as well as public holidays and Sundays, additional weekly impact monitoring shall be carried out during respective restricted hours periods. Applicable permits under NCO shall be obtained by the Contractor.

3.1.5.        If construction works are extended to include works during the hours of 1900  0700 as well as public holidays and Sundays, additional weekly impact monitoring shall be carried out during respective restricted hours periods. Applicable permits under NCO shall be obtained by the Contractor.

3.1.6.        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.

 

3.1.7.        Noise baseline level review was commenced in this reporting period. Detailed review report showed in Appendix 3.2.

3.1.8.        Real time noise baseline level review at night time period (2300 to 0700) was commenced in this reporting period. Detailed review report showed in Appendix 3.3.

 

3.2.                        Air Monitoring

Air Quality Monitoring Stations

3.2.1.        The air monitoring stations for the Project are listed and shown in Table 3.3 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.3  Air Monitoring Stations

Station ID

Monitoring Location

Description

CMA1b

Oil Street Community Liaison Centre

North Point

CMA2a

Causeway Bay Community Centre

Causeway Bay

CMA3a

CWB PRE Site Office *

Causeway Bay

CMA4a

Society for the Prevention of Cruelty to Animals

Wan Chai

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

Wan Chai

CMA6a

WDII PRE Site Office *

Wan Chai

* Remarks: As per the ENPC meeting in January 2011, the monitoring stations CMA3a - Future CWB site office at Wanchai Waterfront Promenade and CMA6a - Future AECOM site office at Work Area were renamed as remark.

Air Monitoring Parameters, Frequency and Duration

3.2.2.        One-hour and 24-hour TSP levels should be measured to indicate the impacts of construction dust on air quality. The 24-hour TSP levels shall be measured by following the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.

3.2.3.        All relevant data including temperature, pressure, weather conditions, elapsed-time meter reading for the start and stop of the sampler, identification and weight of the filter paper, and any other local atmospheric factors affecting or affected by site conditions, etc., shall be recorded down in detail.

3.2.4.        For regular impact monitoring, the sampling frequency of at least once in every six-days, shall be strictly observed at all the monitoring stations for 24-hour TSP monitoring. For 1-hour TSP monitoring, the sampling frequency of at least three times in every six-days should be undertaken when the highest dust impact occurs.

impact monitoring for odour patrol

3.2.5.        Odour patrols along the shorelines of Causeway Bay Typhoon Shelter and ex-Wan Chai Public Cargo Working Area when there is temporary reclamation in Causeway Bay Typhoon Shelter and/or in the ex-Wan Chai Public Cargo Working Area, or when there is dredging of the odorous sediment and slime at the south-western corner of the Causeway Bay Typhoon Shelter. Odour patrols will be carried out at bi-weekly intervals during July, August and September by a qualified person of the ET who shall:

 -         be at least 16 years of age;

 -         be free from any respiratory illnesses; and

 -         not be allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30 min

 -         before and during odour patrol

3.2.6.        Odour patrol shall be conducted by independent trained personnel / competent persons patrolling and sniffing around the shore as shown in Figure 3.1 to detect any odour at the concerned hours (afternoon is preferred for higher daily temperature).

3.2.7.        The qualified person will use the nose (olfactory sensor) to sniff odours at different locations. The main odour emission sources and the areas to be affected by the odour nuisance will be identified.

3.2.8.        The perceived odour intensity is to be divided into 5 levels which are ranked in the descending order as follows:

 -             0 - Not detected. No odour perceived or an odour so weak that it cannot be easily characterized or described;

 -             1 - Slight Identifiable odour, and slight chance to have odour nuisance;

 -             2 - Moderate Identifiable odour, and moderate chance to have odour nuisance;

 -             3 - Strong Identifiable, likely to have odour nuisance;

 -             4 - Extreme Severe odour, and unacceptable odour level.

 

3.2.9.        The findings including odour intensity, odour nature and possible odour sources, and also the local wind speed and direction at each location will be recorded. In addition, some relevant meteorological and tidal data such as daily average temperature, and daily average humidity, on that surveyed day will be obtained from the Hong Kong Observatory Station for reference. The Action and Limit levels for odour patrol are shown in Appendix 3.1.

3.2.10.    The qualified odour patrol member has individual n-butanol thresholds complied with the requirement of European Standard Method of Air Quality  Determination of Odour Concentration by Dynamic Olfactometry (EN13725) in the range of 20 to 80 ppb. The certificate for the qualified odour panel member is shown in Appendix 4.2.

3.3.               Water Quality Monitoring

3.3.1.        The EIA Report has identified that the key water quality impact would be associated with the dredging works during the construction phase.  Marine water quality monitoring for dissolved oxygen (DO), suspended solid (SS) and turbidity is therefore recommended to be carried out at selected WSD flushing water intakes. The impact monitoring should be carried out during the proposed dredging works to ensure the compliance with the water quality standards.

Water Quality Monitoring Stations

3.3.2.        It is proposed to monitor the water quality at 9 WSD salt water intakes and 14 cooling water intakes along the seafront of the Victoria Harbour. The proposed water quality monitoring stations of the Project are shown in Table 3.4 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.4   Marine Water Quality Stations for Water Quality Monitoring

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD7

Kowloon South

834150.0

818300.3

WSD9

Tai Wan

837921.0

818330.0

WSD10

Cha Kwo Ling

841900.9

817700.1

WSD15

Sai Wan Ho

841110.4

816450.1

WSD17

Quarry Bay

839790.3

817032.2

WSD19

Sheung Wan

833415.0

816771.0

WSD20

Kennedy Town

830750.6

816030.3

WSD21

Wan Chai

836220.8

815940.1

RW1

Wan Chai (Reprovision)

836188.8

815911.1

Cooling Water Intake

C1

HKCEC Extension

835885.6

816223.0

C2

Telecom House

835647.9

815864.4

C3

HKCEC Phase I

835836.2

815910.0

C4e

Wan Chai Tower and Great Eagle Centre (Eastern)

835932.8

815888.2

C4w

Wan Chai Tower and Great Eagle Centre (Western)

835629.8

815889.2

C5e

Sun Hung Kai Centre (Eastern)

836250.1

815932.2

C5w

Sun Hung Kai Centre (Western)

836248.1

815933.2

C6

World Trade Centre

837009.6

815999.3

C7

Windsor House

837193.7

816150.0

C8

City Garden

837970.6

816957.3

C9

Provident Garden

838355.0

817116.6

RC1

Proposed HKAPA Extension

835487.7

815987.7

RC5

Sun Hung Kai Centre (Reprovision)

836291.4

816029.7

RC7

Windsor House (Temporary Dilution)

837245.2

816156.6

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.

 

Water Quality Parameters and frequency

3.3.3.        Monitoring of dissolved oxygen (DO), turbidity and suspended solids (SS) shall be carried out at WSD flushing water intakes and cooling water intakes. DO and Turbidity are measured in-situ while SS is determined in laboratory. 

3.3.4.        In association with the water quality parameters, other relevant data shall also be measured, such as monitoring location/position, time, sampling depth, water temperature, pH, salinity, dissolved oxygen (DO) saturation, weather conditions, sea conditions, tidal stage, and any special phenomena and work underway at the construction site etc.

3.3.5.        The interval between two sets of monitoring should not be less than 36 hours except where there are exceedances of Action and/or Limit Levels, in which case the monitoring frequency will be increased. Table 3.5 shows the proposed monitoring frequency and water quality parameters. Duplicate in-situ measurements and water sampling should be carried out in each sampling event. For selection of tides for in-situ measurement and water sampling, tidal range of individual flood and ebb tides should be not less than 0.5m.

Table 3.5  Marine Water Quality Monitoring Frequency and Parameters

Activities

Monitoring Frequency1

Parameters2

During the 4-week baseline monitoring period

Three days per week, at mid-flood and mid-ebb tides

Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity

During marine construction works

Three days per week, at mid-flood and mid-ebb tides

Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity

After completion of marine construction works

Three days per week, at mid-flood and mid-ebb tides

Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity

Notes:

1.       For selection of tides for in-situ measurement and water sampling, tidal range of individual flood and ebb tides should be not less than 0.5m.

2.       Turbidity should be measured in situ whereas SS should be determined by laboratory.

 

Enhanced Water Quality Monitoring in the ex-Wan Chai Public Cargo

Working Area and the Causeway Bay Typhoon Shelter

3.3.6.        The enhanced water quality monitoring and audit programme is to avoid aggravation of odour nuisance from seawater arising from temporary reclamation in the ex-Wan Chai Public Cargo Working Area and the Causeway Bay Typhoon Shelter.

3.3.7.        Dissolved oxygen monitoring at the intakes C6 and C7 in Causeway Bay Typhoon Shelter when there is temporary reclamation in Causeway Bay Typhoon Shelter and at the south-western and south-eastern corners of the ex-Wan Chai Public Cargo Working Area. The proposed water quality monitoring stations of the Project are shown in Table 3.6 and Figure 3.1.

Table 3.6   Marine Water Quality Stations for Enhanced Water Quality Monitoring

Station

Location

C6

Excelsior Hotel

C7

Windsor House

Ex-WPCWA-SW

South-western of the ex-Wan Chai Public Cargo Working Area

Ex-WPCWA-SE

South-eastern of the ex-Wan Chai Public Cargo Working Area

3.3.8.        The monitoring of dissolved oxygen are to be carried out 3 days per week, at mid-flood and mid-ebb tides for 3 water depths (1m below water surface, mid-depth and 1m above sea bed, except where the water depth less than 6m, the mid-depth may be omitted. If the water depth be less than 3m, only the mid-depth will be monitored).

Daily SS Monitoring and 24 hours Turbidity Monitoring System

3.3.9.        During dredging of the sediment at the south-western corner of the Causeway Bay Typhoon Shelter, daily monitoring of suspended solids and 24 hour monitoring of turbidity at the cooling water intakes (C6 and C7) shall be conducted.

3.3.10.    The 24 hours monitoring of turbidty at the cooling water intakes (C6 and C7) shall be established by setting up a continuous water quality monitoring station in front of the intakes during the dredging activities. The monitoring system include the turbidity sensor and data logger which is capable of data capturing at every 5 minutes. The data sahll be downloaded daily and compared with the Action and Limit level determined during the baseline water qualtiy monitoring at the cooling water intake locations.

4.     Monitoring Results

4.0.1.        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).

 

   4.1.          Noise Monitoring Results

Contract no. HY/2009/11  Central  Wanchai Bypass, North Point Reclamation

4.1.1.        The proposed division of noise monitoring stations for Contract no. HY/2009/11 are summarized in Table 4.1 below:

Table 4.1   Noise Monitoring Stations for Contract no.  /span>HY/2009/11

Station

Description

M4b

Victoria Centre

M5b

City Garden

 

4.1.2.        There was no exceedance recorded in reporting quarter. Noise monitoring results measured in this reporting period are reviewed and summarized. Details of graphical presentation can be referred in Appendix 4.1. 

 

Contract no. HK/2009/01 - Wan Chai Development Phase II  Central –Wanchai Bypass at HKCEC and Contract no. HK/2009/02 - Wan Chai Development Phase II  Central  Wan Chai Bypass at WanChai East

4.1.3.        The proposed division of noise monitoring stations are summarized in Table 4.2 below.

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

Station

Description

M1a

Harbour Road Sports Centre

4.1.4.        Ten limit level exceedances at M1a on 2, 8, 14 and 24 and 29 June, 5, 13, 19 and 25 July 2011 and 22 August 2011 during construction works at evening time for Contract no. HK/2009/02 in reporting quarter. Major noise source was contributed from Tonnochy Road and water sport competition at Wan Chai Training Swimming Pool. The dredging work was complied with the conditions under valid Construction Noise Permit during the measurement.

4.1.5.        One Action level was recorded due to one noise complaint on 26 August 2011 in relation to HK/2009/01. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.1.

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

4.1.6.        The noise monitoring for HY/2009/15 was commenced on 10 November 2010. The proposed division of noise monitoring stations are summarized in Table 4.3 below.

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

Station

Description

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

 

4.1.7.        Six Action levels were recorded due to six noise complaints in relation to HY/2009/15. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.1.

   4.2.          Real Time Noise Monitoring Results

4.2.1          No construction activity was conducted during night time period (2300 to 0700) in this reporting month.

4.2.2          Calibration and maintenance of real time noise meters were conducted at RTN1 on 5 July 2011 from 0900 to 0930 hours and at RTN2 on 7 July 2011 from 1600 to 1630 hours, respectively. No monitoring was conducted during the mentioned periods.

Contract no. HY/2009/11  Central  Wanchai Bypass, North Point Reclamation

4.2.3          The proposed division of real time noise monitoring stations are summarized in Table 4.4 below. Real time noise monitoring for the filling works under contract no. HY/2009/11 was commenced on 5 October 2010.

Table 4.4  Real Time Noise Monitoring Station for Contract no. HY/2009/11

District

Station

Description

Tin Hau

RTN1

FEHD Hong Kong Transport Section Whitefield Depot

North Point

RTN2

Oil Street Community Liaison Centre

 

4.2.4          Real time noise monitoring results were reviewed and no project-related Action and Limit level exceedance were recorded in the reporting period. Details of real time noise monitoring results and graphical presentation can be referred to Appendix 4.2

   4.3.          Air Monitoring Results

Contract no. HY/2009/11  Central  Wanchai Bypass, North Point Reclamation

4.3.1.        The proposed division of air monitoring stations is summarized in Table 4.5 below.

Table 4.5  Air Monitoring Stations for Contract no. HY/2009/11

Station

Description

CMA1b

Oil Street Community Liaison Centre

CMA2a

Causeway Bay Community Centre

 

4.3.2.        Since the filling work was commenced in mid-August 2010, the 1hr and 24-hr TSP monitoring were commenced on 12 August and 11 August 2010 respectively. Until the commencement of the permanent power supply connection at CMA1b on 22 September 2010, the 24hr TSP at CMA1b was then commenced on 27 September 2010. No exceedance was recorded in the reporting quarter. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.2.

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

4.3.3.        Air monitoring was commenced on 1 April 2011 in response to the commencement of the land-filling work for Contract no. HK/2009/01. The proposed division of air monitoring stations are summarized in Table 4.6  below. No exceedance was recorded in the reporting period.

Table 4.6   Air Monitoring Stations for Contract no. HK/2009/01

Station

Description

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

CMA6a

WDII PRE Site Office *

* Remarks: As per the ENPC meeting in January 2011, the monitoring stations CMA6a - Future AECOM site office at Work Area was renamed as remark.

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

4.3.4.        Air monitoring was commenced in mid-January 2011 for the land-filling work for Contract no. HK/2009/02. The proposed division of air monitoring stations is summarized in Table 4.7 below. No exceedance was recorded in the reporting period.

Table 4.7   Air Monitoring Station for Contract no. HK/2009/02

Station

Description

CMA4a

Society for the Prevention of Cruelty to Animals

 

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

4.3.5.        Air monitoring was commenced on 15 March 2011 for the land filling work for Contract no. HY/2009/15.  /span>The proposed division of air monitoring stations are summarized in Table 4.8 below. No exceedance was recorded in the reporting period.

Table 4.8   Air Monitoring Station for Contract no. HY/2009/15

Station

Description

CMA3a

CWB site office at Wanchai Waterfront Promenade

 

4.3.6.        The odour patrol along the odour route with 8 sniffing locations was conducted by a qualified odour patrol member on 11, 25 July, 4 and 23 August 2011 at the concerned hours (afternoon for higher daily temperature). The odour intensity detected at 8 locations was found to be from level 0 up to level 1 which were below the Action Level. The details of the odour patrol results and meteorological conditions and on the date of odour patrol are shown in Appendix 4.2.

4.3.7.        Additional sniffing location, OP2a was conducted for the place where is in the new shoreline of ex-WPCWA (reclamation area) or odour likely detected by the odour patrol member. The odour patrol route and the sniffing locations are shown in Figure 3.1.

 

   4.4.          Water Monitoring Results

Contract no. HY/2009/11  Central  Wanchai Bypass, North Point Reclamation

4.4.1.        Water quality monitoring for Contract no. HY/2009/11 was commenced on 19 March 2010. The proposed division of water monitoring stations for Contract no. HY/2009/11 is summarized in Table 4.9 below:

Table 4.9  Water Monitoring Stations for Contract no.  /span>HY/2009/11

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD9

Tai Wan

837921.0

818330.0

WSD10

Cha Kwo Ling

841900.9

817700.1

WSD15

Sai Wan Ho

841110.4

816450.1

WSD17

Quarry Bay

839790.3

817032.2

Cooling Water Intake

C8

City Garden

837970.6

816957.3

C9

Provident Garden

838355.0

817116.6

 

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

4.4.2.        Water quality monitoring for Contract no. HK/2009/01 was commenced on 8 July 2010. The proposed division of water monitoring stations is summarized in Table 4.10 below.

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

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD7

Kowloon South

834150.0

818300.3

WSD19

Sheung Wan

833415.0

816771.0

WSD20

Kennedy Town

830750.6

816030.3

Cooling Water Intake

C1

HKCEC Extension

835885.6

816223.0

C2

Telecom House

835647.9

815864.4

C3

HKCEC Phase I

835836.2

815910.0

C4e

Wan Chai Tower and Great Eagle Centre (Eastern)

835932.8

815888.2

C4w

Wan Chai Tower and Great Eagle Centre (Western)

835629.8

815889.2

Remarks:

The water monitoring stations for the dredging works under Contract No. HK/2009/01 should also include WSD9, WSD17, WSD 21 and C5 if water quality monitoring at these locations have not been carried out by others. Similarly, the water monitoring stations for the dredging works under Contract No. HK/2009/02 should also include WSD7, WSD9, WSD17, WSD 19, C1, C2, C3 and C4 if water quality monitoring at these locations have not been carried out by others.

 

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

4.4.3.        Water quality monitoring for Contract no. HK/2009/02 was commenced on 8 July 2010. The proposed division of water monitoring stations is summarized in Table 4.11 below.

Table 4.11 Water Monitoring Stations for Contract no. HK/2009/02

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD21

Wan Chai

836220.8

815940.1

Cooling Water Intake

C5e

Sun Hung Kai Centre (Eastern)

836250.1

815932.2

C5w

Sun Hung Kai Centre (Western)

836248.1

815933.2

Remarks:

The water monitoring stations for the dredging works under Contract No. HK/2009/01 should also include WSD9, WSD17, WSD 21 and C5 if water quality monitoring at these locations have not been carried out by others. Similarly, the water monitoring stations for the dredging works under Contract No. HK/2009/02 should also include WSD7, WSD9, WSD17, WSD 19, C1, C2, C3 and C4 if water quality monitoring at these locations has not been carried out by others.

 

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

4.4.4.        Water monitoring for Contract no. HK/2010/06 was commenced on 8 March 2011. The proposed division of water monitoring stations are summarized in Table 4.12 below.

Table 4.12 Water Monitoring Stations for Contract no. HK/2010/06

Station Ref.

Location

Easting

Northing

Cooling Water Intake

C2

Telecom House

835647.9

815864.4

 

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

4.4.5.        Due to the commencement of the maintenance dredging on 10 November 2010, water quality monitoring for Contract no. HY/2009/15 was commenced on 9 November 2010. The proposed division of water monitoring stations is summarized in Table 4.13 below.

Table 4.13 Water Monitoring Stations for Contract no. HY/2009/15

Station Ref.

Location

Easting

Northing

Cooling Water Intake

C6

Excelsior Hotel

837009.6

815999.3

C7

Windsor House

837193.7

816150

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.

4.4.6.        The enhanced water quality monitoring at C6, C7, Ex-WPCWA-SW and Ex-WPCWA-SE was commenced on 13 January 2011. 13 Action level and 6 Limit level exceedances of dissolved oxygen level at Causeway Bay Typhoon Shelter and ex-Public Cargo Works Area were recorded.

4.4.7.        During dredging of the sediment at the south-western corner of the Causeway Bay Typhoon Shelter between 7 and 28 June 2011, daily monitoring of suspended solids and 24 hours monitoring of turbidity at the cooling water intakes at C7 was be conducted. Due to no power supply from the Windsor House pumping House, there was no monitoring data in a short period on 7, 12, 13, 14, 15 and 25 June 2011. No project-related exceedance was recorded in the daily SS monitoring and 24 hours turbidity monitoring.

4.4.8.        As per the meeting with the representative of Excelsior Hotel and World Trade Centre on 17 May 2011, they confirmed that the seawater intake for The Excelsior was no longer in use and replaced by the connected permanent water supply from WSD pipelines since 11 January 2011. Thus, the impact water quality monitoring for the cooling intake - C6 was terminated effective from 26 May 2011. 

4.4.9.        Water monitoring results measured in this reporting period are reviewed and summarized in Table 4.14. Details of water quality monitoring results and graphical presentation can be referred in Appendix 4.3.

Table 4.14 Summary of Water Quality Monitoring Exceedances in Reporting Quarter

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

HY/2009/11

WSD9

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD10

0

0

1

0

0

0

0

0

0

0

0

0

 

WSD15

0

0

0

0

0

1

0

0

0

0

1

2

 

WSD17

0

0

0

0

0

0

0

0

0

0

1

0

 

C8

0

0

0

0

0

0

0

0

0

0

1

0

 

C9

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/01

WSD19

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD20

0

0

0

1

1

1

0

0

0

0

0

0

 

WSD7

0

0

0

0

0

0

0

0

0

0

0

0

 

C1

0

0

0

0

0

0

0

0

0

0

0

0

 

C3

0

0

0

1

2

1

0

0

0

4

2

2

 

C4e

0

0

0

0

0

0

0

0

0

0

1

0

 

C4w

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/01

& HK/2010/06

C2

0

0

0

1

2

0

0

0

0

0

0

0

HK/2009/02

C5e

0

0

0

0

0

0

0

0

0

0

0

0

 

C5w

0

0

0

0

1

0

0

0

0

0

1

0

 

WSD21

0

0

0

0

0

0

0

0

0

0

0

0

HY/2009/15

C7

0

0

0

0

0

0

2

0

0

0

0

0

Total

0

0

1

3

6

3

2

0

0

4

7

4

Remarks: -  /span> 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.

4.4.10.    All exceedances have been investigated and were considered unlikely to be related to project works. Water monitoring results measured in this reporting period are reviewed and summarized.  Details of graphical presentation can be referred in Appendix 4.2.

   4.5.          Waste Monitoring Results

Contract no. HY/2009/11  Central  Wanchai Bypass, North Point Reclamation

4.5.1.        Non-inert C&D waste was disposed in this reporting period.  Details of the waste flow table are summarized in Table 4.15

Table 4.15 Details of Waste Disposal for Contract no. HY/2009/11

Waste Type

Quantity this quarter

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

NIL

NIL

N/A

Inert C&D materials recycled, m3

NIL

NIL

N/A

Non-inert C&D materials disposed, m3

438.75

443.625

 

SENT Landfill

Non-inert C&D materials recycled, m3

NIL

NIL

N/A

Chemical waste disposed, kg

N/A

N/A

N/A

Marine Sediment (Type 1  Open Sea Disposal), m3

0

(Bulk Volume)

89,500

(Bulk Volume)

South of Cheung Chau

Marine Sediment (Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal), m3

0

 /span>(Bulk Volume)

129,200

 /span>(Bulk Volume)

East of Sha Chau

 

4.5.2.        There was no marine sediment disposed and no dredging work undertaken in the reporting period. Contractor submitted a letter dated 20 July 2011 to confirm that the dredging works and dumping operation were completed.

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

4.5.3.        Inert and non-inert C&D waste was disposed of for the site preparation works in this reporting period. Details of the waste flow table are summarized in Table 4.16.

Table 4.16 Details of Waste Disposal for Contract no. HK/2009/01

Waste Type

Quantity this quarter

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

306.52

6,828.75

TKO137

Inert C&D materials recycled, m3

389.96

389.96

N/A

Non-inert C&D materials disposed, m3

102.64

401.22

 

SENT Landfill

Non-inert C&D materials recycled, kg

38,370

116,458

N/A

Chemical waste disposed, kg

1,300

3,830

N/A

Marine Sediment (Type 1  Open Sea Disposal) , m3

7,106

 /span>(Bulk Volume)

76,570.2

(Bulk Volume)

South of Cheung Chau

Marine Sediment (Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal) , m3

0

(Bulk Volume)

 

12,599

(Bulk Volume)

 

East of Cha Chau

 

 

4.5.4.        There were marine sediments Type 1  Open Sea Disposal disposed in the reporting period. The maximum dredging rate in Cross Harbour Water Mains marine work zone and HKCEC shoreline zone under Hong Kong Convention Exhibition Centre (HKCEC) marine work zone are 486m3 per day respectively, which were complied with the recommended maximum dredging rate per day listed in Table 2 of FEP-02/356/2009.

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

4.5.5.        Inert and non-inert C&D waste was disposed of for the site preparation works in this reporting period. Details of the waste flow table are summarized in Table 4.17.

Table 4.17 Details of Waste Disposal for Contract no. HK/2009/02

Waste Type

Quantity this quarter

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

14,112

25,635

TKO137

Inert C&D materials recycled, m3

NIL

NIL

N/A

Non-inert C&D materials disposed, m3

64

168

SENT Landfill

Non-inert C&D materials recycled, m3

NIL

NIL

N/A

Chemical waste disposed, kg

1,104

2,115

N/A

Marine Sediment (Type 1  Open Sea Disposal), m3

31,378

 /span>(Bulk volume)

150,157

(Bulk Volume)

South of Cheung Chau

 

Marine Sediment (Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal), m3

9,712

(Bulk Volume)

104,390

 /span>(Bulk Volume)

 

East of Sha Chau

* Remarks: The quantities of the disposed sediments have been further clarified by the Contractor and recorded in the Monthly EM&A Report (Aug 2011). The cumulative quantity of disposed marine sediment Type I and sediment Types I & II in last reporting quarter were 118,779m3 and 94,678m3 respectively.

4.5.6.        There were marine sediments Type 1  Open Sea Disposal and Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal marine sediment disposed in the reporting period at a maximum dredging rate 1,108m3 per day, which was complied with the recommended maximum dredging rate per day in sub-marine pipeline work zone listed in Table 2 of FEP-03/356/2009.

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

4.5.7.        Inert and non-inert C&D waste was disposed of for the site preparation works in this reporting period. Details of the waste flow table are summarized in Table 4.18.

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

Waste Type

Quantity this quarter

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

9,546.4

9,549.9

Tuen Mun Area 38

58.7

58.7

TKO137 FB

Inert C&D materials recycled, m3

0

184.0

To Contract HY/2009/11

29

29

Ex-PCWA

Non-inert C&D materials disposed, m3

65.1

104.5

SENT Landfill

 

Non-inert C&D materials recycled, kg

190

13,815

N/A

Chemical waste disposed, kg

2,000

2,000

N/A

Marine Sediment (Type 1  Open Sea Disposal) , m3

13,155

(Bulk Volume)

27,663

(Bulk Volume)

N/A

Marine Sediment (Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal) , m3

10,240

(Bulk Volume)

 

142,042

 /span>(Bulk Volume)

 

East of Sha Chau

Marine Sediment (Type 3  Special Treatment / Disposal contained in Geosynthetic Containers)

0

 

2,750

(Bulk Volume)

 

East of Sha Chau

 

4.5.8.        Due to the late notification of the Contractor on the quantities of disposed Type I sediment, quantities from February 2011 to reporting quarter were included in Monthly EM&A Report for June 2011.

4.5.9.        There were marine sediments Type 1  Open Sea Disposal (Dedicate Sites) & Type 2   Confined Marine Disposal marine disposed from the dredging works at TCBR and TPCWA in the reporting period at a maximum dredging rate 1,025m3 per day, which was complied with the recommended maximum dredging rate per day in shoreline zone listed in Table 2 of FEP-04/356/2009.

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

4.5.10.    No C&D waste was disposed of for the site preparation works in this reporting period. Details of the waste flow table are summarized in Table 4.19.

Table 4.19 Details of Waste Disposal for Contract no. HK/2010/06

Waste Type

Quantity this month

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

NIL

NIL

N/A

Inert C&D materials recycled, m3

NIL

NIL

N/A

Non-inert C&D materials disposed, m3

NIL

NIL

N/A

Non-inert C&D materials recycled, kg

NIL

NIL

N/A

Chemical waste disposed, L

600

600

N/A

Marine Sediment (Type 1  Open Sea Disposal), m3

0

(Bulk Volume)

2,338

(Bulk Volume)

South Cheung Chau

Marine Sediment (Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined Marine Disposal) , m3

0

(Bulk Volume)

11,165

(Bulk Volume)

East Sha Chau

4.5.11.    Contractor clarified that there was 4,674m3 Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined marine sediment disposed in May 2011. Thus, the cumulative disposed Type 1  Open Sea Disposal (Dedicate Sites) & Type 2  Confined marine sediment was 11,165m3.

4.5.12.    There was no marine sediment disposed in this reporting quarter.

5.     Compliance Audit

5.0.1.        The Event Action Plan for construction noise, air quality and water quality are presented in Appendix 5.1.

5.1.               Noise Monitoring

5.1.1          Ten limit level exceedances at M1a on 2, 8, 14 and 24 and 29 June, 5, 13, 19 and 25 July 2011 and 22 August 2011 during construction works at evening time for Contract no. HK/2009/02 in reporting quarter. Major noise source was contributed from Tonnochy Road and water sport competition at Wan Chai Training Swimming Pool. The dredging work was complied with the conditions under valid Construction Noise Permit during the measurement.

5.1.2          Seven Action levels were recorded due to seven recorded noise complaints on 10, 23 and 27 July 2011, 8 and 26 August 2011

5.2.               Real-time Noise Monitoring

5.2.1          No project-related exceedance was recorded in the real-time noise results in reporting quarter.

5.3.               Air Monitoring

5.3.1.        No exceedance was recorded in the reporting quarter.

5.4.               Water Quality Monitoring

5.4.1.        The summary of water quality exceedances recorded in reporting quarter is presented in the Table 5.1.

Table 5.1  Summary of Water Quality Monitoring Exceedances in Reporting Quarter

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

HY/2009/11

WSD9

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD10

0

0

1

0

0

0

0

0

0

0

0

0

 

WSD15

0

0

0

0

0

1

0

0

0

0

1

2

 

WSD17

0

0

0

0

0

0

0

0

0

0

1

0

 

C8

0

0

0

0

0

0

0

0

0

0

1

0

 

C9

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/01

WSD19

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD20

0

0

0

1

1

1

0

0

0

0

0

0

 

WSD7

0

0

0

0

0

0

0

0

0

0

0

0

 

C1

0

0

0

0

0

0

0

0

0

0

0

0

 

C3

0

0

0

1

2

1

0

0

0

4

2

2

 

C4e

0

0

0

0

0

0

0

0

0

0

1

0

 

C4w

0

0

0

0

0

0

0

0

0

0

0

0

HK/2009/01

& HK/2010/06

C2

0

0

0

1

2

0

0

0

0

0

0

0

HK/2009/02

C5e

0

0

0

0

0

0

0

0

0

0

0

0

 

C5w

0

0

0

0

1

0

0

0

0

0

1

0

 

WSD21

0

0

0

0

0

0

0

0

0

0

0

0

HY/2009/15

C7

0

0

0

0

0

0

2

0

0

0

0

0

Total

0

0

1

3

6

3

2

0

0

4

7

4

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.

5.4.2.        All exceedances have been investigated and were considered unlikely to be related to project works.

5.5.               Site Audit

5.4.3.        There was no non-compliance from the site audits in the reporting period. During environmental site inspections conducted during the reporting quarter, minor deficiencies were noted.

5.6.               Review of the Reasons for and the Implications of Non-compliance

5.6.1.        No project-related non-compliance from monitoring was recorded in the reporting period.

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

5.7.1.        There was no particular action taken since no project-related non-compliance was recorded from the site audits and environmental monitoring in the reporting period.

 

6.     Complaints, Notification of Summons and Prosecution

6.0.1.        There were ten environmental complaints received in this quarter.

6.0.2.        In June 2011, there was one odour complaint received on 9 June 2011 regarding an odour nuisance suspected generating from the discharge point  Channel T at Watson Road in part of the site area was related to CWB under Contract no. HY/2009/11. During the weekly site inspection on 7 and 17 June 2011, there was no any odour impact detected in the site area. According to the site record, there was muddy water discharged from the unknown source at upstream of Channel T during heavy rainstorm. No any site surface runoff to the Channel T and out of site boundary was observed in the inspection. In order to prevent muddy water washing out to the water body under heavy rainstorm, a silt curtain was installed at the outfall of the channel by Contractor. Besides, regular removal of refuse in the channel has been conducted by Contractor. A further site investigation on 28 June 2011 revealed that no odour nuisance was detected at the upstream of the Channel T and no source of odour nuisance was identified at site. As such, it was concluded that the source of odour nuisance was not related to the Project works.

6.0.3.        Although no source of odour nuisance was identified at site, the muddy water and dirt from the unknown source at upstream of Channel T may cause a potential smell during low tide and low water flow. Contractor was reminded to remove the silt curtain at the channel on non-rainy day so as to avoid the accumulation of the sediment and dirt in the water channel.

6.0.4.        In July 2011, there were six environmental complaints received on 9, 10, 23 and 27 July 2011.

6.0.5.        A complaint letter to Contractor HY/2009/11was raised by Cayley Property Management Limit on 9 July 2011 regarding a series of pump breakdown events at seawater intake of City Garden on 4, 6, 7 and 8 July 2011. A lot of rubbish such as plastic bags, nylon bags, nylon-wire mesh was observed sucking from the seawater intake at the seawater front of Block 7 of City Garden affecting the operation of seawater pump plant. Contractor conducted formation works for installation of caisson seawall at C27, C28, C29 and C30 on 4, 6, 7 and 8 July 2011 and no dredging work was conducted during this time period. Water mitigation measures of an 80m long silt curtain at the site boundary in front of City Garden Relocation of silt curtain and silt curtain at the outfall of the channel were provided and maintained to accommodate the site works. All vessels are equipped with rubbish collection facilities and disposed the rubbish regularly. Also, daily cleaning actions had been taken by contractor to minimize floating refuse within the site boundary.

6.0.6.        Referring to the record provided by Cayley Property Management Limit, the trapped rubbish was unlikely generated from the construction works. Moreover, it has been reported several times that discharge from outfall pipeline near the intake pump was observed. It was considered that complaint is not related to Project works.

6.0.7.        An ICC complaint no.1-301520309 was received at 00:56 on 10 July 2011. There was complained a derrick barge unloading rockfill material off the shore facing the Harbour Grant HK Hotel. Also, the same complaint was raised by District Councillor, Mr. Wong on 11 July 2011. ET confirmed with the Resident Site Staff that the complaint was referred to Contract HY/2009/15 for the loading and unloading of fill material at two barges operation in the sea at around 300m adjacent to Island Eastern Corridor (Oil Street Chainage) where is outside the Site of HY/2009/15 in the period of around 19:45 on 9 July to 1:00 on 10 July 2011.

6.0.8.        The material loading and unloading operation processed in restricted hours was checked without a valid CNP. It was found that the operation was due to an unexpected water leakage of the hopper barge and consideded as an incident. According to the incident report provided from RSS on 20 July 2011, the barge S22 was inclined slightly at around 19:30 on 9 July and slightly water leakage might occur. Due to marine safety concern, the hopper barge would open the hopper to release the contained materials in order to reduce the weight and stablize the barge. In consider of slight water leakage, the operator decided to use the nearby Derrick Barge ST32 to help for unload the general fill materials first and the unloading operation was started at around 7:45pm, and end at around 1:00 am. Contractor was reminded to provide frequent check of vessel condition so as to prevent recurrent by barge defect.

6.0.9.        The noise complaint via 1823 (ICC no. 1-304013959) by Ms. Yau, the resident at Victoria Centre on 23 July 2011 in last reporting month, she complained that noise impact was generated from the operations at the reclamation area of Causeway Bay Typhoon Shelter at 7am while most of the residents at Victoria Centre were sleeping. RSS confirmed to start the rock breaking activities at 8m as a mitigation measure to minimize the noise nuisance in the vicinity of the residents. Further investigation revealed that no construction noise exceedance was recorded at noise monitoring station of Victoria Centre on 25 July and 4 August 2011 during daytime period while breaking and excavation works were undertaken during monitoring. In conclusion, it was related to the construction works under Contract HY/2009/15 and mitigation measure was provided. No further complaint from complainant was received after proposed the mitigation measure.

6.0.10.    A noise impact complaint ICC no. 1  03887687 was received by ET on 28 July 2011. It was complained by a resident Ms. Law at Block 1, Victoria Centre on 23 July 2011. She concerned that Highways Department published a notice in their Management Office about construction works will be conducted at 0700 hours during July to December 2011 including Saturday, Sunday and public holiday. RSS confirmed that the notice was prepared by Victoria Centre‘s Management office to their resident and advice was only given on the extension construction works to 7am-9pm Monday to Saturday except Public Holidays and Sundays. As a mitigation measure to minimize the noise nuisance in the vicinity of the residents, rock breaking activities will be started at 8am and is expected to be completed by mid-August 2011. The complainant was satisfied with the arrangement and no further complaint was received after proposed measures. Further investigation revealed that no construction noise exceedance was recorded at noise monitoring station of Victoria Centre on 19 and 25 July 2011 during daytime period while breaking and excavation works were undertaken during monitoring. In conclusion, it was related to the construction works under Contract HY/2009/15 and mitigation measure was provided. No further complaint from complainant was received after proposed the mitigation measure.

6.0.11.    A noise impact complaint ICC no. 1  04616162 was received by ET on 28 July 2011. It was complained by Mr. Law from Victoria Centre Management Office on 27 July 2011 regarding construction noise generated by the construction operations of Central-Wanchai Bypass at noon rather than in morning at 7am. RSS confirmed to start the rock breaking activities at 8m as a mitigation measure to minimize the noise nuisance in the vicinity of the residents. Further investigation revealed that no construction noise exceedance was recorded at noise monitoring station of Victoria Centre on 25 July and 4 August 2011 during daytime period while breaking and excavation works were undertaken during monitoring. In conclusion, it was related to the construction works under Contract HY/2009/15 and mitigation measure was provided. No further complaint from complainant was received after proposed the mitigation measure.

6.0.12.    Another noise complaint via 1823 (ICC no.1-304615409) by Ms. Chiu on 27 July 2011, she complained on the construction noise generated from the construction operations of Central-Wanchai Bypass in the morning at 7am rather than at noon. RSS confirmed to start the rock breaking activities at 8m as a mitigation measure to minimize the noise nuisance in the vicinity of the residents. Further investigation revealed that no construction noise exceedance was recorded at noise monitoring station of Victoria Centre on 25 July, 4 and 10 August 2011 during daytime period while breaking and excavation works were undertaken during monitoring.

6.0.13.    In August 2011, there were three environmental complaints received on 8, 10 and 26 August 2011.

6.0.14.    The complainant, Ms. Chiu did not satisfy with the response on her complaint on 27 July (ICC no.1-304615409) regarding the noise nuisance from the rock-breaking during morning in front of Victoria Centre. She has further complained via 1823 on 8 August 2011. Highways contacted the complainant on 15 August 2011 that the noisy rock breaking operation had been completed. No further complaint from complainant was received after the liaison. In conclusion, it was related to the construction works under Contract HY/2009/15 and mitigation measure was provided.

6.0.15.    An ICC complaint no. 1  306740207 was received on 10 August 2011. The complainant, Mr. Yip complained that muddy water was discharged from work site to the seafront near Oil Street during heavy rain. According to the Hong Kong Observatory, there was amber rainstorm on August 2011. Confirmed with RE, muddy water was caused by a heap of earth being washed to the sea by heavy rain. The heap of earth was referred as a small stockpile placed close to the seafront in front of Oil Street within the site area under handover transition period from contract HY/2009/11 to contract HY/2009/19. The necessary mitigation measures to protect the small stockpile against rainfall were missing at the time of complaint. The stockpile at the seafront near Oil Street had been removed. The cause of the complaint is still under investigation between ET and RSS of CWB. To avoid any further environmental deficiency, Contractors shall ensure all necessary environmental mitigation measures will not be missing during site area handover.

6.0.16.    A noise complaint was raised by Grand Hyatt and a complainant via 1823 on 26 August 2011 regarding construction noise and vibration nuisance generated from the works at Convention Avenue and inside the HKCEC1 reclamation area. Confirmed with the Resident Site Staff, the construction works were referred to the Contractor HK/2009/01 and the excavator mounted breaker at Convention Avenue and drilling rig at HKCEC1 reclamation area were the dominant construction noise source during this period. The drilling rig at HKCEC1 reclamation area and excavator mounted breaker at Convention Avenue were then temporary suspended after received the complaint.

6.0.17.    Investigation revealed that the erected noise barriers (4m cantilevered movable noise barrier for the drilling rig and 1m movable noise barrier for the excavator mounted breaker) were not located close to the plants to provide adequate noise screening. Contractor was advised to avoid concurrent operation of construction plants at site. Further enhancement of movable noise barriers at HKCEC1 and providing noise enclosure for the excavator mounted breaker at Convention Avenue are needed. Further investigation and checking on 31 August and 7 September 2011 revealed that the implemented noise mitigation measures were in proper and minimize the noise impact.

6.0.18.    The details of cumulative complaint log and summary of complaints are presented in Appendix 6.1.

6.0.19.    No notification of summons or prosecution was received in the reporting period. Cumulative statistic on complaints and successful prosecutions are summarized in Table 6.1 and Table 6.2 respectively.

Table 6.1  Cumulative Statistics on Complaints

Reporting Period

No. of Complaints

Commencement works (Mar 2010) to last reporting quarter

11

Jun - Aug 2011

10

Project-to-Date

21

 

Table 6.2  Cumulative Statistics on Successful Prosecutions

Environmental Parameters

Cumulative No. Brought Forward

No. of Successful Prosecutions this quarter (Offence Date)

Cumulative No. Project-to-Date

Air

-

0

0

Noise

-

0

0

Water

-

0

0

Waste

-

0

0

Total

-

0

0

 

6.0.20.    According to the information provided by Contractor HK/2009/02 on 7 July 2011, a short dumping incident vessel Hang Yang 862 (hereafter referred to as “Hang Yang  under Contract HK/2009/02 was recorded on 6 June 2011 at around 12:13p.m. Hang Yang was approved to include as an additional vessel in Permit no. EP/MD/11-093 (Valid period between 28 April to 28 May 2011) by EPD on 28 April 2011. It was called in by the JV for dumping works on 25 May 2011 when it was still valid under EP/MD/11-093. However, due to unanticipated slow working progress, the loading of marine deposits onto Hang Yang was not completed until 6 June 2011. Due to the expiry of Permit no. EP/MD/11-093, the Contractor renewed a new Permit EP/MD/12-012 for 2 hopper barges (B21521V and B21637V) for the period from 29 May to 28 November 2011 which were not included the Hang Yang. Hence, the dumping works by Hang Yang on 6 June 2011 was considered as short dumping.

6.0.21.    The Contractor HK/2009/02 reviewed and enhanced the communication mechanism between the office staff and frontline site staff on the checking all legal documents pertaining to any marine dumping prior to the departure of vessels from the site. No vessel will be allowed to depart to any dumping site in the absence of a copy of valid dumping permit personally inspected by the foreman-in-charge. Regular internal audits on the checking system and the standard form of “Hopper Barge Departure Inspection Checklist shall be implemented as proposed remedial measures.

6.0.22.    A suspected breach of dumping permits condition under EP/MD/12-012 and EP/MD/12-033 was concerned by EPD regarding the excavated construction material spilled into the sea during the loading process at Contract HK/2009/02 construction site on 4 and 8 July 2011. A warning letter was issued to the Contractor HK/2009/02 by EPD on 14 July 2011 to require the Contractor to comply with the permit requirement and step up the improvement measures on the loading and dumping operations for the full compliance of the permit condition. Contractor have taken action and implemented the following enhancement measures:

 -       Slow down the up-lifting speed for the skipping of dump truck during unloading process;

 -       Filter excess fluid from excavated materials before loading into the dump truck; and

 -       Erection of protective screen at the edge of the barge to avoid excavated material spilling into the sea during loading process

 

7.     Cumulative Construction Impact due to the Concurrent Projects

7.0.1.        According to Condition 3.4 of the EP-356/2009, this section addresses the relevant cumulative construction impact due to the concurrent activities of the current projects including the Central Reclamation, Central-WanChai Bypass and Island Eastern Corridor Link projects.

7.0.2.        According to the construction programme of Wan Chai Development Phase II, Central-Wan Chai Bypass and Island Eastern Corridor Link projects, the major construction activities at Reclamation Shoreline Sub-zones under Wan Chai Development Phase II were the filling works at NPR1, NPR2E, NPR2W, WCR1, HKCEC1, TPCWAE and TCBR1E, dredging at TCBR1W, Submarine sewage pipeline, seawall block construction at TCBR1W, navigation channel and mooring area and Cross Harbour Water Mains, and marine works at MTR Tunnel Crossing in the reporting month. The major environmental impact was water quality impact at North Point, Causeway Bay and Wan Chai.

7.0.3.        The major environmental impacts generated from the filling work at Central Reclamation Phase III were only located along the coastline of Central and Admiralty. As no project related exceedance was recorded in the Project, it was considered no adverse environmental impact caused by the Project works. Thus, it is evaluated the cumulative construction impact from the concurrent projects including Wan Chai Development Phase II and Central Reclamation Phase III was insignificant.

8.     Conclusion

8.0.1.        The EM&A programme was carried out in accordance with the EM&A Manual requirements, minor alterations to the programme proposed were made in response to changing circumstances.

8.0.2.        No non-compliances were noted and no prosecutions were received during the reporting quarter.

8.0.3.        The construction programmes of individual contracts are provided in Appendix 8.1.