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 and FEP-03/356/2009

 

Quarterly Environmental Monitoring
and Audit Report

 

- March to MAY 2010 -

 

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:

 

 

9 July 2010

Table of contents

 

EXECUTIVE SUMMARY. iii

1.   Introduction. 1

1.1    Scope of the Report 1

1.2    Structure of the Report 1

2.   Project Background. 2

2.1    Background. 2

2.2    Scope of the Project and Site Description. 2

2.3    Division of the Project Responsibility. 3

2.4    Project Organization and Contact Personnel 4

2.5    Project Organization and Contact Personnel 5

3.   Monitoring Requirements. 8

3.1.    Noise Monitoring. 8

3.2.    Air Monitoring. 8

3.3.    Water Quality Monitoring. 9

4.   Monitoring Results. 12

4.1.    Noise Monitoring Results. 12

4.2.    Air Monitoring Results. 13

4.3.    Water Monitoring Results. 13

4.4.    Waste Monitoring Results. 14

5.   Compliance Audit. 17

5.1.    Noise Monitoring. 17

5.2.    Air Monitoring. 17

5.3.    Water Quality Monitoring. 17

5.4.    Site Audit 18

5.5.    Review of the Reasons for and the Implications of Non-compliance. 18

5.6.    Summary of action taken in the event of and follow-up on non-compliance. 18

6.   Complaints, Notification of Summons and Prosecution. 19

7.   Cumulative Construction Impact due to the Concurrent Projects. 20

8.   Conclusion. 21


lIST OF TABLES

 

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

Table II     Site Preparation Works for Contract no. HK/2009/01

Table III     Site Preparation Works for Contract no. HK/2009/02

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    Site Preparation Works for Contract no. HK/2009/01

Table 2.6    Site Preparation Works for Contract no. HK/2009/02

Table 3.1   Noise Monitoring Station

Table 3.2   Air Monitoring Station

Table 3.3    Marine Water Quality Stations for Water Quality Monitoring

Table 3.4   Marine Water Quality Monitoring Frequency and Parameters

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

Table 4.2   Water Monitoring Stations for Contract no. HY/2009/11

Table 4.3   Details of Waste Disposal for Contract no. HY/2009/11

Table 4.4   Details of Waste Disposal for Contract no. HK/2009/01

Table 4.5   Details of Waste Disposal for Contract no. HK/2009/02

Table 6.1   Cumulative Statistics on Complaints

Table 6.2   Cumulative Statistics on Successful Prosecutions

 

lIST OF FIGUREs

 

Figure 2.1     Project Layout

Figure 2.2     Project Organization Chart

Figure 3.1      Locations of Environmental Monitoring Stations

 

lIST OF APPENDIces

 

Appendix 2.1   Environmental Mitigation Implementation Schedule

Appendix 3.1   Action and Limit Level

Appendix 4.1   Noise Monitoring Graphical Presentations

Appendix 4.2   Water Quality Monitoring Graphical Presentations

Appendix 5.1   Event Action Plans

Appendix 5.2   Summary for Notification of Exceedance       

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> March to May 2010 for Contract No. HK/2009/05 –Wanchai Development Phase II and Central Wanchai Bypass - Sampling, Field Measurement and Testing Work (Stage 1). This report presents the environmental monitoring findings and information recorded during the period from 17th March 2010 to 27th May 2010. 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

March 2010

April 2010

May 2010

Ÿ          Dredging works,

Ÿ          Special Hoarding erection and

Ÿ          Erection of Refuse Collection Point (RCP)

Ÿ          Dredging Works;

Ÿ          Construction of haul road for Harbour Height;

Ÿ          Construction of break water;

Ÿ          Construction of special site hoarding and

Ÿ          Construction of Community Liaison Center (CLC).

Ÿ          Sediment dredging;

Ÿ          Breakwater demolition;

Ÿ          Special site hoarding construction;

Ÿ          Casting Caisson Seawall (in Mainland China); and

Ÿ         Casting Seawall Block (in Mainland China)

 

  1. Major marine activities for Contract no. HK/2009/01 are anticipated to be commenced in the end of June 2010. The major site preparation works in this reporting periods included:

Table II    Site Preparation Works for Contract no. HK/2009/01

March 2010

April 2010

May 2010

Ÿ         No site preparation works

Ÿ          Interim Engineer’s Principal Office at Works areas WA1

Ÿ          Erection of interim Engineer’s Principal Office at Works areas WA2

Ÿ          Trial Pile staging, silt screen and silt curtain

Ÿ          Hoarding erection along the southern side & eastern side of the site

Ÿ          Marine site investigation for cross harbour water mains and reclamation.

Ÿ          Dewatering at existing pump houses is completed. Inspection and structural condition

Ÿ          Fabrication of special made flat top barge for dredging inside the HKCEC water channel

Ÿ          Production of pipes and fittings for cooling water mains

 

Ÿ          Installation of inclinometer no. E1.

Ÿ          Ground investigation for P1 pipe pile wall.

Ÿ          Erection of interim Engineer’s Principal Office at Works areas WA2;

Ÿ          Pre-drilling works and fabrication of staging for trial pile, derrick barge is carrying out transportation of materials to the designated pile position;

Ÿ          Hoarding erection along the southern and eastern side;

Ÿ          Marine ground investigation;

Ÿ          Installation of geotechnical instrumentation is underway and inclinometers points of E1, E2, E3, E4 and E8

Ÿ          Fabrication of pipe pile wall staging at the existing promenade piled deck;

Ÿ          Inspection and structural condition survey, field measurement for pumping stations P1, P3, P4 and P5;

 

Ÿ          Fabrication of special made flat top barge for dredging inside the HKCEC water channel;

Ÿ          Silt screens installation for HKCEC Phase 1, Government Buildings, China Resources, Great Eagle & Harbour Centre, Telecom House, Shui On and HKAPA;

Ÿ          Temporary silt curtain installation at HKCEC Extension (Pumping Station P6);

Ÿ          Fabrication of silt screens for Sheung Wan & Kowloon South Pumping Station, and remaining HKCEC Extension;

Ÿ          Temporary works on the existing promenade piled deck for installation of pipe pile wall P1;

Ÿ          Existing RC. Parapet on the north side of water channel near Expo Drive West Bridge was removed partially; removal of rock amour on sloping seawall is in progress;

Ÿ          Fabrication of mud barges and crane barge for dredging within HKCEC water channel; and

Ÿ          Wheel washing facility at the north entrance to the water channel.

 

  1. Major construction activities for Contract no. HK/2009/02 are anticipated to be commenced in the end of June 2010. The major site preparation works in this reporting periods included:

Table III    Site Preparation Works for Contract no. HK/2009/02

March 2010

April 2010

May 2010

Ÿ          No site preparation works

Ÿ          Removal Major construction activities for existing footing at WSD Salt Water Pumping Station;

Ÿ          Site clearance; and

Ÿ          Hoarding & fencing erection

Ÿ          Installation of Silt Screen and Silt Curtain;

Ÿ          Construction of Temporary Seawall (Sheet Pile);

Ÿ          Road Modification Works;

Ÿ          Removal Existing Footing at WSD Salt Water Pumping Station;

Ÿ          Pre-drilling Works at WSD Salt Water Pumping Station;

Ÿ          Site Clearance; and

Ÿ          Hoarding Erection

 

Noise Monitoring

  1. Three action level exceedances were recorded due to the noise complaints on 21 March and 4 May 2010 regarding noise nuisance from the dredging works in North Point district during the restricted hours. Although no non-compliance of the CNP conditions, the Contractor HY/2009/11 has implemented mitigation measures to reduce the working hours during restricted hours.

 

  1. Noise monitoring during day time and evening time were conducted at the City Garden and Causeway Bay Community Centre on a weekly basis in the reporting period. Two limit level exceedances were recorded at Causeway Bay Community Centre on 8 April and 4 May 2010. All exceedances were marginally exceeded the limit level and found not to be attributed to the project works as major noise source was obtained from the Island Eastern Corridor. It can be concluded that the exceedances were not due to the project.

 

Air Quality Monitoring

  1. No air quality monitoring was undertaken during the reporting period.

 

Water Quality Monitoring

  1. Water quality monitoring was conducted at 6 designated monitoring stations namely WSD9, WSD10, WSD15, WSD17, C8 and C9 on 57 tidal monitoring events during the reporting period.  /span>Total 18 exceedances of SS and 11 exceedances of turbidity were recorded during mid-flood while 8 exceedances of SS and 2 exceedances of turbidity were recorded during mid-ebb in the reporting period. Investigation found that the exceedances were mainly due to the numerous unknown outfalls from the nearby coastal area enclosed by the silt screen. It causes the potential for accumulation and trapping of pollutants behind the silt screens and may lead to potential water quality deterioration at the seawater intake points.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. Two complaints were recorded on 21 March 2010 and another complaint was recorded on 4 May 2010 regarding noise nuisance from the dredging works in North Point district.  The complaint on 21 March 2010 was also related to dark smoke emission from dredger. Investigations for the complaints were found no non-compliances with respect to the EM&A requirements. Routine inspection was strengthened on checking dark smoke emission from diesel operating plant and equipment.

 

 

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) for Contractor No. HK/2009/05 Wan Chai Development Phase II and Central –Wan Chai Bypass  Sampling, Field Measurement and Testing Work (Stage 1) 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 17th March 2010 to 27th May 2010.

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. HY/2009/11 - Central  Wanchai Bypass, North Point Reclamation under the Project has been commenced on 17 March 2010. Two Contracts under the Project are anticipated to be commenced in end of June 2010.  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

End of June 2010

DP1, DP2

Pending

HK/2009/02

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

DP3, DP5

End of June 2010

DP1

Pending

HY/2009/11

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

DP3

17 March 2010

 

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

Principal Resident Engineer

Mr. Frankie Fan

2607 0838

2687 2322

Engineer for CWB

Chief Resident Engineer

Mr. David Kwan

3916 1800

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

Paul Yu

9456 9819

2634 1626

Operation Manager

Ho Wing Tai

9306 1356

Construction Manager

David Wong

9653 8635

Construction Manager

Wilson Lau

5183 1270

Construction Manager

Alex Tsang

9194 9383

Environmental Officer (Compliance Manager)

Ho Wing Tai

9306 1356

Environmental Engineer

Ken Yang

9262 6791

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. Anthony Wu

3658 3004

Environmental Officer (Compliance Manager)

Mr. Barry Leung

3658 3031

Environmental Engineer

Ms. Flora Ng

3658-3064

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

March 2010

April 2010

May 2010

Ÿ          Dredging works,

Ÿ          Special Hoarding erection and

Ÿ          Erection of Refuse Collection Point (RCP)

Ÿ          Dredging Works;

Ÿ          Construction of haul road for Harbour Height;

Ÿ          Construction of break water;

Ÿ          Construction of special site hoarding and

Ÿ          Construction of Community Liaison Center (CLC).

Ÿ          Sediment dredging;

Ÿ          Breakwater demolition;

Ÿ          Special site hoarding construction;

Ÿ          Casting Caisson Seawall (in Mainland China); and

Ÿ         Casting Seawall Block (in Mainland China)

 

2.5.2.        Major marine activities for Contract no. HK/2009/01 are anticipated to be commenced in the end of June 2010. The major site preparation works in this reporting periods are summarized in Table 2.5.

Table 2.5   Site Preparation Works for Contract no. HK/2009/01

March 2010

April 2010

May 2010

Ÿ         No site preparation works

Ÿ          Interim Engineer’s Principal Office at Works areas WA1

Ÿ          Erection of interim Engineer’s Principal Office at Works areas WA2

Ÿ          Trial Pile staging, silt screen and silt curtain

Ÿ          Hoarding erection along the southern side & eastern side of the site

Ÿ          Marine site investigation for cross harbour water mains and reclamation.

Ÿ          Dewatering at existing pump houses is completed. Inspection and structural condition

Ÿ          Fabrication of special made flat top barge for dredging inside the HKCEC water channel

Ÿ          Production of pipes and fittings for cooling water mains

Ÿ          Installation of inclinometer no. E1.

Ÿ          Ground investigation for P1 pipe pile wall.

Ÿ          Erection of interim Engineer’s Principal Office at WA2;

Ÿ          Pre-drilling works and fabrication of staging for trial pile, derrick barge is carrying out transportation of materials to the designated pile position;

Ÿ          Hoarding erection along the southern and eastern side;

Ÿ          Marine ground investigation;

Ÿ          Installation of geotechnical instrumentation is underway and inclinometers points of E1, E2, E3, E4 and E8

Ÿ          Fabrication of pipe pile wall staging at the existing promenade piled deck;

Ÿ          Inspection and structural condition survey, field measurement for pumping stations P1, P3, P4 and P5;

Ÿ          Fabrication of special made flat top barge for dredging inside the HKCEC water channel;

Ÿ          Silt screens installation for HKCEC Phase 1, Government Buildings, China Resources, Great Eagle & Harbour Centre, Telecom House, Shui On and HKAPA;

Ÿ          Temporary silt curtain installation at HKCEC Extension (Pumping Station P6);

Ÿ          Fabrication of silt screens for Sheung Wan & Kowloon South Pumping Station, and remaining HKCEC Extension;

Ÿ          Temporary works on the existing promenade piled deck for installation of pipe pile wall P1;

Ÿ          Existing RC. Parapet on the north side of water channel near Expo Drive West Bridge was removed partially; removal of rock amour on sloping seawall is in progress;

Ÿ          Fabrication of mud barges and crane barge for dredging within HKCEC water channel; and

Ÿ          Wheel washing facility at the north entrance to the water channel.

 

2.5.3.        Major construction activities for Contract no. HK/2009/02 are anticipated to be commenced in the end of June 2010. The major site preparation works in this reporting periods are summarized in Table 2.6.

Table 2.6   Site Preparation Works for Contract no. HK/2009/02

March 2010

April 2010

May 2010

Ÿ          No site preparation works

Ÿ          Removal Major construction activities for existing footing at WSD Salt Water Pumping Station;

Ÿ          Site clearance; and

Ÿ          Hoarding & fencing erection

Ÿ          Installation of Silt Screen and Silt Curtain;

Ÿ          Construction of Temporary Seawall (Sheet Pile);

Ÿ          Road Modification Works;

Ÿ          Removal Existing Footing at WSD Salt Water Pumping Station;

Ÿ          Pre-drilling Works at WSD Salt Water Pumping Station;

Ÿ          Site Clearance; and

Ÿ          Hoarding Erection

2.5.4.        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.  /span>Appendix 3.1 shows the established Action/Limit Levels for the monitoring works.

Table 3.1  Noise Monitoring Station

Station

Description

M1a

Harbour Road Sports Centre

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

M4a

Causeway Bay Community Centre

M5b

City Garden

M6

HK Baptist Church Henrietta Secondary School

M7a

Harbour Building

 

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.

3.2.                        Air Monitoring

Air Quality Monitoring Stations

3.2.1.        The air 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  Air Monitoring Station

Station ID

Monitoring Location

Description

CMA1b

Oil Street Community Liaison Centre

North Point

CMA2a

Causeway Bay Community Centre

Causeway Bay

CMA3a

Future CWB site office at Wanchai Waterfront Promenade

Causeway Bay

CMA4a

Society for the Prevention of Cruelty to Animals

Wan Chai

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

Wan Chai

CMA6a

Future AECOM site office at Work Area

Wan Chai

MA1b

Harbour Building

Central

 

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.

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 12 cooling water intakes along the seafront of the Victoria Harbour. The proposed water quality monitoring stations of the Project are 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   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

C4

Wan Chai Tower and Great Eagle Centre

835932.8

815888.2

C5

Sun Hung Kai Centre

836250.1

815932.2

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

 

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 3.4 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 3.4  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.

 

 

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

M4a

Causeway Bay Community Centre

M5b

City Garden

 

4.1.2.        Day time and evening period noise monitoring was conducted at the City Garden and Causeway Bay Community Centre once per week in the reporting period.

4.1.3.        Three action level exceedances were recorded due to the noise complaints, on 8 April and 4 May 2010. There were complained on the construction noise nuisance from the dredging work activities during restricted hours. Contractor’s site practical and measurement results were reviewed. There were found no non-compliance and considered as invalid exceedances. The details of the complaints can be referred to Section 6 and Appendix 6.1.

4.1.4.        Two limit level exceedances were recorded at M4a on 8 April and 4 May 2010. All exceedances were investigated and found not to be attributed to the project works as major noise source was obtained from the Island Eastern Corridor. It can be concluded that the exceedances were not due to the project.

4.1.5.        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

4.1.6.        The commencement of marine construction works for Contract nos. HK/2009/01 and HK/2009/02 are anticipated in the end of June 2010. The noise monitoring will be commenced concurrently with the commencement of construction works for these two contracts.

   4.2.          Air Monitoring Results

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

4.2.1.        The major construction activities of Contract no. HY/2009/11 was dredging works in the reporting period. No major dust impact is anticipated to be caused by the dredging works. Air monitoring will be commenced from the filling work for Contract no. HY/2009/11.Therefore, no air monitoring was conducted in the reporting period.

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

4.2.2.        No major dust impact is anticipated to be caused by the site preparation works. Air monitoring will be commenced from the filling works for Contract no. HK/2009/01 and HK/2009/02. Therefore, no air monitoring was conducted in the reporting period.

   4.3.          Water Monitoring Results

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

4.3.1.        The proposed division of water monitoring stations for Contract no. HY/2009/11 are summarized in Table 4.2 below:

Table 4.2  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

 

4.3.2.        Water quality monitoring were conducted at 6 designated monitoring stations namely WSD9, WSD10, WSD15, WSD17, C8 and C9 on 57 tidal monitoring events during the reporting period.

4.3.3.        Due to the amber rainstorm warning and thunderstorm on 19 May 2010 during mid-ebb, we concern about the safety during work over water under adverse weather and consider the water quality being substantially affected by urban runoff did not represent the normal impact condition. At such, water quality monitoring for this tide was cancelled.

4.3.4.        For the suspended solid, total fifteen action level exceedances and eleven limit level exceedances were recorded in the reporting period. The details of exceedances are as follows:

Mid-flood

Two limit level exceedances were recorded at WSD17;

Four action level and two limit level exceedances were recorded at C8; and

Five action level and five limit level exceedances were recorded at C9

Mid-ebb

One action and one limit level exceedances were recorded at WSD17;

Two action level exceedances were recorded at C8; and

Three action level and one limit level exceedances were recorded at C9

4.3.5.        For the turbidity, total three action level and ten limit level exceedances were recorded in the reporting period. The details of exceedances are as follows:

Mid-flood

Four limit level exceedances were recorded at C8; and

Two action level and five limit level exceedances were recorded at C9

Mid-ebb

One action level and one limit level exceedances were recorded at C8; and

4.3.6.        Investigation found that the numerous exceedances were mainly due to the numerous unknown outfalls from the nearby coastal area enclosed by the silt screen. It causes the potential for accumulation and trapping of pollutants behind the silt screens and may lead to potential water quality deterioration at the seawater intake points.

4.3.7.        Water monitoring results measured in this reporting period are reviewed and summarized.  Details of graphical presentation can be referred in Appendix 4.2.

 

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

4.3.8.        Water monitoring for Contract no. HK/2009/01 and HK/2009/02 is anticipated to be commenced on end of June. Installations of silt screen and silt curtain are untaken in the reporting period.

 

   4.4.          Waste Monitoring Results

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

4.4.1.        Non-inert C&D waste and marine sediment were disposed of in the reporting period. Details of the waste flow table are summarized in Table 4.3

Table 4.3  Details of Waste Disposal for Contract no. HY/2009/11

Waste Type

Quantity this quarter, m3

Cumulative Quantity-to-Date, m3

Disposal / Dumping Grounds

Inert C&D materials disposed

NIL

NIL

N/A

Inert C&D materials recycled

NIL

NIL

N/A

Non-inert C&D materials disposed

4.72

4.72

SENT Landfill

Non-inert C&D materials recycled

NIL

NIL

N/A

Chemical waste disposed

N/A

N/A

N/A

Marine Sediment (Type 1  Open Sea Disposal)

36,000

36,000

South of Cheung Chau

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

46,000

 

46,000

 

East of Sha Chau

 

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. The maximum dredging rate in North Point Shoreline Zone is 3,000m3 per day in the reporting period, which is complied with the criteria listed in Table 5.10 of EIA Report Register No. AEIAR-125/2008.

 

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

4.4.2.        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 4.4.

Table 4.4  Details of Waste Disposal for Contract no. HK/2009/01

Waste Type

Quantity this quarter, m3

Cumulative Quantity-to-Date, m3

Disposal / Dumping Grounds

Inert C&D materials disposed

NIL

NIL

N/A

Inert C&D materials recycled

NIL

NIL

N/A

Non-inert C&D materials disposed

24

24

SENT Landfill

Non-inert C&D materials recycled

NIL

NIL

N/A

Chemical waste disposed

NIL

NIL

N/A

Marine Sediment (Type 1  Open Sea Disposal)

NIL

NIL

N/A

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

NIL

NIL

N/A

 

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

4.4.3.        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 4.5.

Table 4.5  Details of Waste Disposal for Contract no. HK/2009/02

Waste Type

Quantity this quarter, m3

Cumulative Quantity-to-Date, m3

Disposal / Dumping Grounds

Inert C&D materials disposed

NIL

NIL

N/A

Inert C&D materials recycled

NIL

NIL

N/A

Non-inert C&D materials disposed

22

22

SENT Landfill

Non-inert C&D materials recycled

NIL

NIL

N/A

Chemical waste disposed

NIL

NIL

N/A

Marine Sediment (Type 1  Open Sea Disposal)

NIL

NIL

N/A

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

NIL

NIL

N/A

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.        Three action level exceedances were recorded due to the noise complaints, on 21 March and 4 May 2010. There were complained on the construction noise nuisance from the dredging work activities during restricted hours. Contractor’s site practical and measurement results were reviewed. There were found no non-compliance and considered as invalid exceedances. The details of the complaints can be referred to Section 6 and Appendix 6.1.

5.1.2.        Two limit level exceedances were recorded at M4a on 8 April and 4 May 2010. All exceedances were investigated and found not to be attributed to the project works as major noise source was obtained from the Island Eastern Corridor. It can be concluded that the exceedances were not due to the project.

5.2.               Air Monitoring

5.2.1.        No air monitoring was conducted in this reporting period.

5.3.               Water Quality Monitoring

5.3.1.        For the suspended solid, the details of exceedances in the reporting period are as follows:

Mid-flood

Two limit level exceedances were recorded at WSD17;

Four action level and two limit level exceedances were recorded at C8; and

Five action level and five limit level exceedances were recorded at C9

Mid-ebb

One action and one limit level exceedances were recorded at WSD17;

Two action level exceedances were recorded at C8; and

Three action level and one limit level exceedances were recorded at C9

5.3.2.        For the turbidity, the details of exceedances in the reporting period are as follows:

Mid-flood

Four limit level exceedances were recorded at C8; and

Two action level and five limit level exceedances were recorded at C9

Mid-ebb

One action level and one limit level exceedances were recorded at C8; and

 

5.3.3.        Frequent action and limit level exceedances of turbidity and suspended solid were recorded at C8 and C9. Major exceedances were occurred during the mid-flood tide in the water quality monitoring. Investigation was found that the numerous unknown outfalls from the nearby coastal area enclosed by the silt screen at C8 and C9. It causes the potential for accumulation and trapping of pollutants behind the silt screens and may lead to potential water quality deterioration at the seawater intake points. Contractor was reminded to avoid the pollutant and refuse entrapment problems. Besides, regular maintenance of the silt screens and refuse collection shall be performed at the monitoring stations at regular intervals on a daily basis.

5.3.4.        The exceedances were recorded at WSD17. No muddy boom was observed during the water monitoring. Reviewed the data of the nearest monitoring station to the marine work area in the same tide, no exceedance was recorded. As such, it is concluded as natural variation and non-project related exceedance. Summary for notification of exceedances can be referred to Appendix 5.2.

5.4.               Site Audit

5.4.1.        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. However, the Contractor rectified all deficiencies after receipt of notification.

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

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

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

5.6.1.        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.        Three noise complaints were recorded regarding the construction noise emission from the dredging works at North Point district. Investigations for the complaints were found no non-compliances with respect to the EM&A requirements. The complaint on 21 March 2010 was also related to dark smoke emission from dredger. Routine inspection was strengthened on checking dark smoke emission from diesel operating plant and equipment. The details of cumulative complaint log and summary of complaints are presented in Appendix 6.1.

6.0.2.        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

March-May 2010

3

Project-to-Date

3

 

Table 6.2  Cumulative Statistics on Successful Prosecutions

Environmental Parameters

Cumulative No. Brought Forward

No. of Successful Prosecutions this month (Offence Date)

Cumulative No. Project-to-Date

Air

-

0

0

Noise

-

0

0

Water

-

0

0

Waste

-

0

0

Total

-

0

0

 

6.0.3.        An incident regarding the suspected breach of Marine Dumping Permit for Contract no. HY/2009/11 by EPD letter dated 20 April 2010, RSS has conducted a site investigation with Contractor on 22 April 2010. Contractor for Contract no. HY/2009/11 has reported the details of the incident and their improvement measures to EPD on 23 April 2010. According to the EPD letter dated 20 May 2010, they have invited Contractor to assist the investigation for their explanation or clarification on the above incident. Any updated information will be reported in the next reporting report.

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-Wan Chai Baypass and Island Eastern Corridor Link projects.

7.0.2.        According to the construction programme of Central-Wan Chai Baypass and Island Eastern Corridor Link projects, the major construction activity under Wan Chai Development Phase II was the dredging work at North Point Reclamation Stage 1 in the reporting period. The major environmental impact was water quality impact at North Point.  /span>No construction activities were undertaken in the Central-Wan Chai Baypass and Island Eastern Corridor Link projects.

7.0.3.        The major environmental impacts generated from the Central Reclamation Projects were located along the coastline of Central and Admiralty while only dredging work at North Point Reclamation Stage 1 was in operation in this reporting period. Besides, water quality mitigation measures were properly in place for the dredging works under Contract no. HY/2009/11 in this reporting period. No project–related exceedance were recorded. Thus, it is evaluated that the cumulative construction impact from the concurrent projects including Wan Chai Development Phase II and Central Reclamation 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.        Two noise monitoring at M4a - Causeway Bay Community Centre was recorded marginally exceeded the limit level in the reporting period. After review the contractor’s site practices and site investigation, it was found that the major noise source was contributed from the traffic noise of the Island Eastern Corridor during the measurement and was not due to the Project.

8.0.3.        There were three complaints regarding noise nuisance from the dredging works in North Point District. The complaint on 21 March 2010 was also related to dark smoke emission from dredger. Routine inspection was strengthened on checking dark smoke emission from diesel operating plant and equipment. Investigations for the complaints were found no non-compliances with respect to the EM&A requirements.

8.0.4.        Numerous action and limit exceedances of SS concentration and turbidity were found in the reporting period. Investigation was found that discharges from outfalls located near seawater intake monitoring stations are major influencing factors that adversely impact water quality. It can be concluded that the exceedances were influenced by either adverse factors or ambient conditions and were unrelated to the marine works for the Project.

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