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

 

Monthly Environmental Monitoring & Audit Report

 

- june 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

 

 

 

 

 

Certified by:



 

 

 

 

 

                                               

Raymond Dai

Environmental Team Leader

 

 

 

DATE:

 

 

7 July 2011


Table of contents

 

EXECUTIVE SUMMARY. 4

1.     Introduction. 9

1.1        Scope of the Report 10

1.2        Structure of the Report 10

2.     Project Background. 12

2.1        Background. 12

2.2        Scope of the Project and Site Description. 12

2.3        Division of the Project Responsibility. 13

2.4        Project Organization and Contact Personnel 14

3.     Status of Regulatory Compliance. 20

3.1        Status of Environmental Licensing and Permitting under the Project 20

4.     Monitoring Requirements. 29

4.1        Noise Monitoring. 29

4.2        Air Monitoring. 30

4.3        Water Quality Monitoring. 32

5.     Monitoring Results. 37

5.1        Noise Monitoring Results. 37

5.2        Real-time Noise Monitoring. 38

5.3        Air Monitoring Results. 39

5.4        Water Monitoring Results. 40

5.5        Waste Monitoring Results. 43

6.     Compliance Audit. 48

6.1        Noise Monitoring. 48

6.2        Real-time noise Monitoring. 48

6.3        Air Monitoring. 48

6.4        Water Quality Monitoring. 48

6.5        Review of the Reasons for and the Implications of Non-compliance. 50

6.6        Summary of action taken in the event of and follow-up on non-compliance. 50

7.     Cumulative Construction Impact due to the Concurrent Projects. 51

8.     Environmental Site Audit. 52

9.     Complaints, Notification of Summons and Prosecution. 55

10.    Conclusion. 57


lIST OF TABLES

 

Table I         Summary of Water Quality Monitoring Exceedances in Reporting Month

Table 2.1     Schedule 2 Designated Projects under this Project

Table 2.2      Details of Individual Contracts under the Project

Table 2.3      Contact Details of Key Personnel

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

Table 3.2      Cumulative Summary of Valid Licences and Permits under Contract no. HY/2009/11

Table 3.3      Summary of submission status under FEP-01/356/2009 Condition

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

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

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

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

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

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

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

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

Table 4.1      Noise Monitoring Station

Table 4.2      Real Time Noise Monitoring Station

Table 4.3      Air Monitoring Station

Table 4.4     Marine Water Quality Stations for Water Quality Monitoring

Table 4.5      Marine Water Quality Monitoring Frequency and Parameters

Table 4.6     Marine Water Quality Stations for Enhanced Water Quality Monitoring

Table 5.1     Noise Monitoring Stations for Contract no. HY/2009/11

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

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

Table 5.4      Real Time Noise Monitoring Station for Contract no. HY/2009/11

Table 5.5     Air Monitoring Stations for Contract no. HY/2009/11

Table 5.6     Air Monitoring Stations for Contract no. HK/2009/01

Table 5.7     Air Monitoring Station for Contract no. HK/2009/02

Table 5.8     Air Monitoring Station for Contract no. HY/2009/15

Table 5.9     Water Monitoring Stations for Contract no.  HY/2009/11

Table 5.10    Water Monitoring Stations for Contract no. HK/2009/01

Table 5.11    Water Monitoring Stations for Contract no. HK/2009/02

Table 5.12    Water Monitoring Stations for Contract no. HK/2009/02

Table 5.14    Summary of Water Quality Monitoring Exceedances in Reporting Month

Table 5.15    Details of Waste Disposal for Contract no. HY/2009/11

Table 5.16    Details of Waste Disposal for Contract no. HK/2009/01

Table 5.17    Details of Waste Disposal for Contract no. HK/2009/02

Table 5.18    Details of Waste Disposal for Contract no. HY/2009/15

Table 5.19    Details of Type I Marine Sediment Disposal for Contract no. HY/2009/15

Table 5.20    Details of Waste Disposal for Contract no. HK/2010/06

Table 8.1      Summary of Environmental Inspections for Contract no. HY/2009/11

Table 8.2     Summary of Environmental Inspections for Contract no. HK/2009/01

Table 8.3     Summary of Environmental Inspections for Contract no. HK/2009/02

Table 8.4     Summary of Environmental Inspections for Contract no. HY/2009/15

Table 8.5     Summary of Environmental Inspections for Contract no. HK/2010/06

Table 9.1      Cumulative Statistics on Complaints

Table 9.2      Cumulative Statistics on Successful Prosecutions

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

 

 

lIST OF FIGUREs

 

Figure 2.1          Project Layout

Figure 2.2          Project Organization Chart

Figure 4.1         Locations of Environmental Monitoring Stations

 

 

 

lIST OF APPENDIces

 

Appendix 3.1     Environmental Mitigation Implementation Schedule

Appendix 4.1     Action and Limit Level

Appendix 4.2     Copies of Calibration Certificates

Appendix 5.1     Monitoring Schedule for Reporting Month and Coming month

Appendix 5.2     Noise Monitoring Results and Graphical Presentations

Appendix 5.3     Air Quality Monitoring Results and Graphical Presentations

Appendix 5.4     Water Quality Monitoring Results and Graphical Presentations

Appendix 5.5     Real-time Noise Monitoring Results and Graphical Presentations

Appendix 6.1     Event Action Plans

Appendix 6.2     Summary for Notification of Exceedance

Appendix 9.1     Complaint Log

Appendix 10.1   Construction Programme of Individual Contracts

EXECUTIVE SUMMARY

  1. This is the Environmental Monitoring and Audit (EM&A) Monthly Report ¡V June 2011 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 findings and information recorded during the period 28th May 2011 to 27th June 2011. The cut-off date of reporting is at 27th of each reporting month.

 

Construction Activities for the Reported Period

  1. During this reporting period, the major work activities for Contract no. HY/2009/11 included:

¡P          Reclamation works;

¡P          Concreting;

¡P          Slotted panel fixing;

¡P          Drainage Construction works;

¡P          Outfall construction works;

¡P          Construction & installation of Concrete Block; and

¡P          Installation of Caisson Seawall

 

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

¡P          Reclamation works of HKCEC water Channel;

¡P          Assembly of jack-up barge at Tsim Sha Tsui;

¡P          Installation of sheet pile water channel at Dome Promenade;

¡P          Removal of rock armours within the HKCEC Water Channel;

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

¡P          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;

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

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

¡P          Mainlaying works at Zone B1-5;

¡P          Mainlaying works at Zone A4-3A;

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

¡P          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

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

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

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

¡P          Internal and external decoration for new public toilet;

¡P          FEHD pre-inspection of new public toilet;

¡P          Modification works for disable toilet;

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

¡P          Basement structure and ground floor slab of passenger terminal building;

¡P          Modification of existing finger pier deck and tree pits;

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

¡P          Erection of bamboo scaffolding;

¡P          Trench excavation and deck over works along Tonnochy Road;

¡P          Pipe jacking across Harbour Road;

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

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

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

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

¡P          Excavation and lateral support at Wan Shing Street;

¡P          Dredging for submarine outfall pipe;

¡P          Approximate 180m HDPE pipe was laid;

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

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

¡P          Excavation and lateral support for WSD & DSD receiving pits

 

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

¡P          Dredging of odorous sediment at TS4;

¡P          Seawall block construction at TS4;

¡P          Maintenance of navigation channel;

¡P          Diaphragm wall preparation work at TS1 and TPCWAE;

¡P          Grouting works at Abutment A;

¡P          Night time protection works at CHT; and

¡P          Trial trench work at Hung Hing Road and POC

 

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

¡P          Erection of Staging Platform; and

¡P          Marine Bored Piling

 

Noise Monitoring

  1. Noise monitoring during daytime and restricted hour were conducted at the stations M1a, M2b, M3a, M4b and M5b on a weekly basis in the reporting month. Four limit level exceedances were recorded at M1a - Harbour Road Sports Centre on 2, 8, 14 and 24 June 2011 during restricted hour. Investigation found that major traffic noise was contributed in the noise monitoring and not related to the Project.

 

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. No project-related exceedance was recorded in the reporting month.

 

Air Quality Monitoring

  1. Air quality monitoring has been conducted at stations CMA1b, CMA2a, CMA3a, CMA4a, CMA5a and CMA6a. No exceedance was recorded in the reporting month.

 

Water Quality Monitoring

  1. Water quality monitoring at 18 monitoring stations was conducted three days per week during the reporting period.  The action and limit level exceedances of water quality monitoring are summarized in Table I.

 

Table I    Summary of Water Quality Monitoring Exceedances in Reporting Month

Contract no.

Water Monitoring Station

Mid-flood

Mid-ebb

DO

Turbidity

SS

DO

Turbidity

SS

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

HY/2009/11

WSD9

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD10

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD15

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD17

0

0

0

0

0

0

0

0

0

0

0

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

1

1

0

0

0

3

1

1

 

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

1

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

0

0

0

0

0

0

0

0

 

WSD21

0

0

0

0

0

0

0

0

0

0

0

0

HY/2009/15

C7

0

0

0

0

0

0

0

0

0

0

0

0

Total

0

0

0

3

3

2

0

0

0

3

3

1

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.

 

Complaints, Notifications of Summons and Successful Prosecutions

  1. There was one environmental complaint received on 9 June 2011 regarding an odour nuisance suspected generating from the discharge point ¡V Channel T at Watson Road in part of the site area was related to CWB under Contract no. HY/2009/11. No further complaint was received after follow-up action and investigation.

 

Site Inspections and Audit

  1. The Environmental Team (ET) conducted weekly site inspections for Contract nos. HY/2009/11, HK/2009/01, HK/2009/02, HY/2009/15 and HK/2010/06 under EP no. EP-356/2009 in the reporting month. Major observations and recommendations made during the audit sessions were rectified by the Contractors. No non-conformance was identified during the site inspections.

-           

Future Key Issues

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

 

Contract no. HY/2009/11- North Point Reclamation

¡P          Reclamation works;

¡P          Concreting;

¡P          Slotted panel fixing;

¡P          Drainage Construction works;

¡P          Outfall construction works;

¡P          Sheet Pilling; and

¡P          Construction & installation of Seawall Block

 

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

¡P          Sheet pile installation for a temporary water channel covering the existing cooling water intake at Dome Promenade would be completed.

¡P          Removal of rock armours within the HKCEC Water Channel would be continued.

¡P          Installation of both silt screen type 1 & 3 at Tsim Sha Tsui would be completed. Subsequently, installation of sheet piles near the proposed silt screen type 3 at Tsim Sha Tsui would be commenced.

¡P          Installation of cross-harbour watermains nos. A3 & B3 and A4 & B4 would be completed.

¡P          Platform erection fir crawler crane mobilization near the existing seawall at Salisbury Garden would be continued and anticipated to be completed.

¡P          Works would be continued at Convention Avenue, VIP Drop-off Area would be continued.

¡P          Excavation of trial pot at Zone B5-1 and Zone b5-3 would be continued in order to determine the suitable alignments for laying the proposed G1 ducts to and from the existing HKCEC Phase 2 LV Switch room.

 

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

¡P          Operating Tseung Kwan O Public Fill Sorting Facility;

¡P          Modification works for disable toilet;

¡P          Construction of passenger terminal;

¡P          Demolition of remaining ferry pier;

¡P          Casting seawall coping for Expo Drive East seawall modification;

¡P          Modification of hoarding at Expo Drive East for public toilet opening.

¡P          Trench excavation and pipe laying works for cooling mains;

¡P          Trench excavation and deck over at Tonnochy Road;

¡P          Lean concrete at P7, P8 and P9 pump stations;

¡P          Hacking H-pile head and cast the base slab at -5mPD for WSD Salt Water Pumping Station at Wan Shing Street;

¡P          Excavation and lateral support at Wan Shing Street for WSD Salt Water Intake;

¡P          Pre-bored H-pile at for WSD Salt Water Intake and Box Culvert N1 at WCR1 Area;

¡P          Dredging for submarine outfall pipe; and

¡P          Connection chamber at DSD Screening Plant

 

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

¡P          Seawall block construction at TS4;

¡P          Filling at TS4;

¡P          Maintenance of navigation channel;

¡P          Diaphragm wall construction at TS1 and TPCWAE;

¡P          Precautionary works at Abutment A; and

¡P          Night time protection works at CHT

 

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

¡P          Marine Bored Piling;

¡P          Erection of Staging Platform; and

¡P          Disposal of Type 1 and Type 2 Marine Sediment for Pilling Works

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 10.3 of EM&A Manual and ¡§Environmental Monitoring and Audit Requirements¡¨ under Particular Specification Section 27.

1.1.3.        This report documents the finding of EM&A works for Environmental Permit no. EP-356/2009, Further Environmental Permit no. FEP-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 and during the period 28th May to 27th June 2011. The cut-off date of reporting is at 27th of each reporting month.

 

1.2               Structure of the Report

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

Section 10      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:

¡P          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

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

¡P          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

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

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

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

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

 

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

Table 2.1      Schedule 2 Designated Projects under this Project

Item

Designated Project

EIAO Reference

Reason for inclusion

DP1

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

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

Trunk road and road tunnel more than 800 m in length

DP2

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

Schedule 2, Part I, A.1

Primary / district distributor roads

DP3

Reclamation works including associated dredging works

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

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

DP5

Wan Chai East Sewage Outfall

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

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

DP6

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

Schedule 2, Part I, C.12

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

 

2.3               Division of the Project Responsibility

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

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

 

 

 

Table 2.2 Details of Individual Contracts under the Project

Contract No.

Contract Title

Associated DP(s)

Construction Commencement Date

HK/2009/01

Wan Chai Development Phase II ¡V Central ¡VWanchai 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 ¡V Central ¡V 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 ¡V Wan Chai Bypass ¡V North Point Reclamation

DP3

17 March 2010

HY/2009/15

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

DP3

10 November 2010

DP1

13 July 2011

HK/2010/06

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

DP3

22 March 2011

04/HY/2006

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

DP1

September 2010

HY/2009/17

Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced piling works.

DP1

5 October 2010

HY/2009/18

Central - Wan Chai Bypass (CWB) ¡V Central Interchange

DP1

21 April 2011

HY/2009/19

Central - Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link

DP1

24 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

Principal Resident Engineer

Mr. Frankie Fan

2587 1778

2587 1877

Engineer for CWB

Principal 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 ¡V Leader Joint Venture

Contractor under Contract no. HK/2009/01

Project Director

Simon Tong

9124 2471

2634 1626

Site Agent

Paul Yu

9456 9819

Operation Manager

Lau Yee Ching

9466 3918

Construction Manager

David Wong

9653 8635

Construction Manager

Wilson Lau

5183 1270

Construction Manager

Chan Mui Sang

9864 8615

Environmental Officer (Compliance Manager)

Brian Wan

9312 2827

Environmental Engineer

Shelton Chan

5395 5470

Chun Wo ¡V 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

Deputy Site Agent

Mr. Anthony Wu

3658 3004

Quality & 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 (East)

Mr. Jason Chan

9254 1635

 

 

 

Section Agent (West)

Mr. Tang Ka Tung

9473 4771

 

 

 

Environmental Manager

Mr. Samuel Tsui

3557 6347

 

Gammon

-Leader JV

Contractor under Contract no. HK/2010/06

Project Manager

Mr. Simon Tong

9124 2471

2529 2880

Site Agent

Mr. Book Kin Man

9193 8680

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

 

2.4.3.        For Contract no. HY/2009/11, the principal work activities in this reporting month included:

¡P          Reclamation works;

¡P          Concreting;

¡P          Slotted panel fixing;

¡P          Drainage Construction works;

¡P          Outfall construction works;

¡P          Construction & installation of Concrete Block; and

¡P          Installation of Caisson Seawall

 

2.4.4.        For Contract no. HK/2009/01, the principal work activities in this reporting month included:

¡P          Reclamation works of HKCEC water Channel;

¡P          Assembly of jack-up barge at Tsim Sha Tsui;

¡P          Installation of sheet pile water channel at Dome Promenade;

¡P          Removal of rock armours within the HKCEC Water Channel;

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

¡P          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;

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

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

¡P          Mainlaying works at Zone B1-5;

¡P          Mainlaying works at Zone A4-3A;

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

¡P          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

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

 

2.4.5.        For Contract no. HK/2009/02, the principal work activities in this reporting month included:

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

¡P          Internal and external decoration for new public toilet;

¡P          FEHD pre-inspection of new public toilet;

¡P          Modification works for disable toilet;

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

¡P          Basement structure and ground floor slab of passenger terminal building;

¡P          Modification of existing finger pier deck and tree pits;

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

¡P          Erection of bamboo scaffolding;

¡P          Trench excavation and deck over works along Tonnochy Road;

¡P          Pipe jacking across Harbour Road;

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

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

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

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

¡P          Excavation and lateral support at Wan Shing Street;

¡P          Dredging for submarine outfall pipe;

¡P          Approximate 180m HDPE pipe was laid;

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

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

¡P          Excavation and lateral support for WSD & DSD receiving pits

2.4.6.        For Contract no. HY/2009/15, the principal work activities in this reporting month included:

¡P          Dredging of odorous sediment at TS4;

¡P          Seawall block construction at TS4;

¡P          Maintenance of navigation channel;

¡P          Diaphragm wall preparation work at TS1 and TPCWAE;

¡P          Grouting works at Abutment A;

¡P          Night time protection works at CHT; and

¡P          Trial trench work at Hung Hing Road and POC

2.4.7.        For Contract no. HK/2010/06, the principal work activities in this reporting month included:

¡P          Erection of Staging Platform; and

¡P          Marine Bored Piling

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

Contract no. HY/2009/11- North Point Reclamation

¡P          Reclamation works;

¡P          Concreting;

¡P          Slotted panel fixing;

¡P          Drainage Construction works;

¡P          Outfall construction works;

¡P          Sheet Pilling; and

¡P          Construction & installation of Seawall Block

 

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

¡P          Sheet pile installation for a temporary water channel covering the existing cooling water intake at Dome Promenade would be completed.

¡P          Removal of rock armours within the HKCEC Water Channel would be continued.

¡P          Installation of both silt screen type 1 & 3 at Tsim Sha Tsui would be completed. Subsequently, installation of sheet piles near the proposed silt screen type 3 at Tsim Sha Tsui would be commenced.

¡P          Installation of cross-harbour watermains nos. A3 & B3 and A4 & B4 would be completed.

¡P          Platform erection fir crawler crane mobilization near the existing seawall at Salisbury Garden would be continued and anticipated to be completed.

¡P          Works would be continued at Convention Avenue, VIP Drop-off Area would be continued.

¡P          Excavation of trial pot at Zone B5-1 and Zone b5-3 would be continued in order to determine the suitable alignments for laying the proposed G1 ducts to and from the existing HKCEC Phase 2 LV Switch room.

 

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

¡P          Operating Tseung Kwan O Public Fill Sorting Facility;

¡P          Modification works for disable toilet;

¡P          Construction of passenger terminal;

¡P          Demolition of remaining ferry pier;

¡P          Casting seawall coping for Expo Drive East seawall modification;

¡P          Modification of hoarding at Expo Drive East for public toilet opening.

¡P          Trench excavation and pipe laying works for cooling mains;

¡P          Trench excavation and deck over at Tonnochy Road;

¡P          Lean concrete at P7, P8 and P9 pump stations;

¡P          Hacking H-pile head and cast the base slab at -5mPD for WSD Salt Water Pumping Station at Wan Shing Street;

¡P          Excavation and lateral support at Wan Shing Street for WSD Salt Water Intake;

¡P          Pre-bored H-pile at for WSD Salt Water Intake and Box Culvert N1 at WCR1 Area;

¡P          Dredging for submarine outfall pipe; and

¡P          Connection chamber at DSD Screening Plant

 

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

¡P          Seawall block construction at TS4;

¡P          Filling at TS4;

¡P          Maintenance of navigation channel;

¡P          Diaphragm wall construction at TS1 and TPCWAE;

¡P          Precautionary works at Abutment A; and

¡P          Night time protection works at CHT

 

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

¡P          Marine Bored Piling;

¡P          Erection of Staging Platform; and

¡P          Disposal of Type 1 and Type 2 Marine Sediment for Pilling Works

 

 

3.         Status of Regulatory Compliance

3.1               Status of Environmental Licensing and Permitting under the Project

 

3.1.1.        A summary of the current status on licences and/or permits on environmental protection pertinent to the Project is shown in Table 3.1.

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

Permits and/or Licences

Reference No.

Issued Date

Status

Environmental Permit

EP-356/2009

30 Jul 2009

Valid

Environmental Permit

EP-364/2009/A

4 Aug 2010

Valid

Environmental Permit

EP-364/2009

17 Aug 2009

Superseded

Environmental Permit

EP-376/2009

13 Nov 2010

Valid

Further Environmental Permit

FEP-01/356/2009

18 Feb 2010

Valid

Further Environmental Permit

FEP-02/356/2009

24 Mar 2010

Valid

Further Environmental Permit

FEP-03/356/2009

24 Mar 2010

Valid

Further Environmental Permit

FEP-04/356/2009

22 Nov 2010

Valid

Further Environmental Permit

FEP-05/356/2009

24 Mar 2011

Valid

Further Environmental Permit

FEP-01/364/2009

24 Mar 2010

Valid

Further Environmental Permit

FEP-02/364/2009

21 Apr 2010

Valid

Further Environmental Permit

FEP-03/364/2009

12 Jul 2010

Valid

Further Environmental Permit

FEP-04/364/2009/A

14 Oct 2010

Valid

Further Environmental Permit

FEP-05/364/2009/A

15 Nov 2010

Valid

Further Environmental Permit

FEP-06/364/2009/A

22 Nov 2010

Valid

Further Environmental Permit

FEP-07/364/2009/A

25 Feb 2011

Valid

 

3.1.2.        Due to the multi-contract nature of the Project, the status of permits and/or licences under the individual contract(s) are presented as below:

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

3.1.3.        Summary of the current status on licences and/or permits on environmental protection pertinent and submission under FEP-01/356/2009 for contract no. HY/2009/11 are shown in Table 3.2 and Table 3.3.

 

 

Table 3.2 Cumulative Summary of Valid Licences and Permits under Contract no. HY/2009/11

Permits and/or Licences

Reference No.

Issued Date

Valid Period/ Expiry Date

Status

Further Environmental Permit

FEP-01/356/2009

18 Feb 2010

N/A

Valid

Notification of Works Under APCO

314911

9 Mar 2010

N/A

Valid

Construction Noise Permit (CNP) for non-piling equipment

GW-RS0330-11

15 Apr 2011

1 May 2011 to 31 Oct 2011

Valid

Registration as a Chemical Waste Producer

WPN5213-151-C3631-02

12 Oct 2010

N/A

Valid

Billing Account under Waste Disposal Ordinance

7010037

13 Jan 2010

N/A

Valid

Discharge Licence

WT00007942-2010

29 Nov 2010

30 Nov 2015

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal)

EP/MD/11-116

29 Dec 2010

31 Dec 2010 to 29 Jun 2011

Valid until 29 Jun 2011

Dumping Permit (Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine Disposal)

EP/MD/12-008

28 Apr 2011

30 Apr 2011 to 29 May 2011

Expired

EP/MD/12-025

31 May 2011

1 Jun 2011 to 29 Jun 2011

Valid

 

Table 3.3 Summary of submission status under FEP-01/356/2009 Condition

EP Condition

Submission

Date of Submission

Condition 2.6

Management Organization of Main Construction Companies

18 Dec 2009

Condition 2.7

Submission of works schedule and location plan

8 Feb 2010

Condition 2.8

Revised Silt Curtain Deployment Plan (Rev. 3)

4 Dec 2010

Condition 2.9

Silt Screen Deployment Plan (Rev. 6)

18 May 2011

Condition 2.10

Coral Translocation Plan

20 Nov 2009

Condition 2.16

Revised Noise Management Plan (Rev 5)

19 Feb 2011

Condition 2.17

Landscape Plan

12 May 2010

 

Revised landscape Plan

30 Jun 2010

 

Submission of Supplementary Information - Revised Management & Maintenance Schedule for Submitted Revised Landscape Plan

25 Aug 2010

 

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

3.1.4.        Summary of the current status on licences and/or permits on environmental protection pertinent and submission for contract no. HK/2009/01 under FEP-02/356/2009 are shown in Table 3.4 and Table 3.5.

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

Permits and/or Licences

Reference No.

Issued Date

Valid Period/ Expiry Date

Status

Further Environmental Permit

FEP-02/356/2009

24 Mar 2010

N/A

Valid

 

FEP-02/364/2009

21 Apr 2010

N/A

Valid

Notification of Works Under APCO

313088

6 Jan 2010

N/A

Valid

Construction Noise Permit (CNP) for piling equipment

PP-RS0045-10

21 Dec 2010

21 Dec 2010 to 20 Jun 2011

Expired

Construction Noise Permit (CNP) for non-piling equipment

GW-RS1074-10

3 Dec 2010

09 Dec 2010 to 08 Jun 2011

Valid

 

GS-RS0022-11

12 Jan 2011

23 Jan 2011 to 22 Jul 2011

Withdrawn

 

GW-RS0107-11

8 Feb 2011

16 Mar 2011 to 15 Sep 2011

Valid

 

GW-RS0111-11

11 Feb 2011

28 Feb 2011 to 31 Aug 2011

Valid

 

GW-RS0311-11

1 Apr 2011

7 Apr 2011 to   6  Oct 2011

Withdrawn

 

GW-RS0384-11

29 Apr 2011

27 May 2011 to 26 Nov 2011

Valid

 

GW-RS0421-11

6 May 2011

11 May 2011 to 10 Nov 2011

Valid

 

GW-RS0450-11

20 May 2010

9 Jun 2010 to

8 Dec 2011

Valid

Discharge Licence

WT00006220-2010

18 Mar 2010

31 Mar 2015

Valid

Billing account under Waste Disposal Ordinance

7010069

21 Jan 2010

N/A

Valid

Registration as a Chemical Waste Producer

WPN5213-134-C3585-01

21 Jan 2010

N/A

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal)

EP/MD/12-021

20 May 2011

24 May 2011 to 23 Nov 2011

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine Disposal)

EP/MD/11-164

6 Apr 2011

8 Apr to 7 May 2011

Expired

 

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

EP Condition

Submission

Date of Submission

Condition 2.6

Management Organization of Main Construction Companies

13 Apr 2010

Condition 2.7

Works Schedule and Location Plan

8 Apr 2010

Condition 2.8

Silt Curtain Deployment Plan

19 Apr 2010

Condition 2.9

Silt Screen Deployment Plan

19 Apr 2010

Conditions 2.8 and 2.9

Supplementary Document on Silt Curtain and Silt Screen Deployment Plan

19 Jul 2010

Report on Field Testing for Silt Curtain

26 Aug 2010

Report on Field Testing for Silt Curtain (Rev. A)

15 Nov 2010

Condition 2.12(d)

Alternative Proposal on Concurrent Dredging for Sewage Pipeline and Cross Harbour Water Mains

15 Apr 2011

Condition 2.17

Noise Management Plan

23 Apr 2010

Condition 2.18

Landscape Plan (Erection of Decorative Screen Hoarding along Construction Site around Hong Kong Exhibition and Convention Centre)

15 May 2010

Landscape Plan (Night-time Lighting)

22 Oct 2010

 

Landscape Plan (Rev. B)

15 Nov 2010

 

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

3.1.5.        Summary of the current status on licences and/or permits on environmental protection pertinent and submission for contract no. HK/2009/02 under FEP-03/356/2009 are shown in Table 3.6 and Table 3.7.

 

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

Permits and/or Licences

Reference No.

Issued Date

Valid Period/ Expiry Date

Status

Further Environmental Permit

FEP-03/356/2009

24 Mar 2010

N/A

Valid

 

FEP-01/364/2009

24 Mar 2010

N/A

Valid

Notification of Works Under APCO

313962

2 Feb 2010

N/A

Valid

Construction Noise Permit (CNP) for piling equipment

PP-RS0037-10

3 Nov 2010

1 Dec 2010 to 31 May 2011

Expired

 

PP-RS0046/10

24 Dec 2010

3 Jan to 31 May 2011

Expired

 

PP-RS0011-11

27 April 2011

1 June 2011 to

30 Nov 2011

Valid

Construction Noise Permit (CNP) for non-piling equipment

GW-RS1154-10

8 Dec 2010

8 Jan 2011 to

7 June 2011

Expired

GW-RS0033-11

19 Jan 2011

01 Feb to          31 Jul 2011

Valid

 

GW-RS0074-11

28 Jan 2011

1 Feb 2011 to

7 Jun 2011

Expired

 

GW-RS0093-11

2 Feb 2011

17 Feb 2011 to

16 Jul 2011

Valid

 

GW-RS0116-11

11 Feb 2011

15 Feb 2011 to

14 Jul 2011

Withdrawn

 

GW-RS0225-11

17 Mar 2011

31 Mar 2011 to 30 Sept 2011

Withdrawn

 

GW-RS0235-11

23 Mar 2011

31 Mar 2011 to 20 Jun 2011

Withdrawn

 

GW-RS0280-11

30 Mar 2011

31 Mar 2011 to 30 Sep 2011

Valid

 

GW-RS0310-11

1 April 2011

2 Apr 2011 to 14 July 2011

Withdrawn

 

GW-RS0335-11

8 April 2011

11 Apr 2011 to 30 Sept 2011

Withdrawn

 

GW-RS0343-11

11 April 2011

25 Apr 2011 to 10 Oct 2011

Valid

 

GW-RS0369-11

21 April 2011

1 May 2011 to

31 Oct 2011

Valid

 

GW-RS0377-11

27 April 2011

1 May 2011 to

31 Oct 2011

Valid

 

GW-RE0311-11

4 May 2011

5 May 2011 to 31 Oct 2011

Valid

 

GW-RS0401-11

3 May 2011

18 May 2011 to 17 Nov 2011

Valid

 

GW-RS0414-11

3 May 2011

9 May 2011 to 8 Nov 2011

Valid

 

GW-RS0423-11

9 May 2011

22 May 2011 to 21 Nov 2011

Valid

 

GW-RS0430-11

9 May 2011

16 May 2011 to 15 Nov 2011

Valid

 

GW-RS0453-11

19 May 2011

23 May 2011 to 22 Nov 2011

Valid

 

GW-RS0458-11

17 May 2011

21 May 2011 to 20 Nov 2011

Valid

 

GW-RS0461-11

19 May 2011

23 May 2011 to 22 Nov 2011

Valid

 

GW-RS0473-11

27 May 2011

01 Jun 2011 to 30 Nov 2011

Valid

 

GW-RS0496-11

31 May 2011

07 Jun 2011 to 06 Dec 2011

Valid

 

GW-RS0502-11

8 Jun 2011

13 Jun 2011 to 12 Dec 2011

Valid

Discharge Licence

WT00006249-2010

22 Mar 2010

31 Mar 2015

Valid

WT00006436-2010

15 Apr 2010

30 Apr 2015

Valid

WT00006673-2010

14 May 2010

31 May 2015

Valid

WT00006757-2010

28 May 2010

31 May 2015

Valid

WT00007129-2010

28 July 2010

31 Jul 2015

Valid

WT00008982-2011

26 April 2011

30 Apr 2016

Valid

Billing Account under Waste Disposal Ordinance (Land)

7010255

10 Feb 2010

N/A

Valid

Billing Account under Waste Disposal Ordinance (Marine)

7011496

6 Oct 2010

N/A

Valid

Registration as Chemical Waste Producer

WPN5213-135-C3593-01

10 Mar 2010

N/A

Valid

WPN5213-839-C3593-02

22 Sep 2010

N/A

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal)

EP/MD/10-093

25 Nov 2010

29 Nov 2010 to 28 May 2011

Expired

 

EP/MD/12-012

6 May 2011

29 May 2011 to 28 Nov 2011

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine disposal)

EP/MD/12-009

29 April 2011

10 May 2011 to 9 June 2011

Expired

EP/MD/12-023

24 May 2011

10 June 2011 to 9 July 2011

Valid

 

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

EP Condition

Submission

Date of Submission

Condition 1.12

Commencement Date of Construction of Marine Works

8 April 2010

Condition 2.6

Management Organization of Main Construction Companies

10 April 2010

Condition 2.7

Works Schedule and Location Plans

8 April 2010

Condition 2.8

Silt Curtain Deployment Plan Rev. H

15 Feb 2011

Condition 2.9

Silt Screen Deployment Plan

21 April 2010

 

Supplementary Information for Existing WSD Salt Water Intakes at Quarry Bay and Sai Wan Ho

5 Oct 2010

Condition 2.12 (d)

Alternative Proposal on Concurrent Dredging for Sewage Pipeline and Cross Harbour Water Mains

19 Apr 2011

Condition 2.17

Noise Management Plan

6 May 2010

Condition 2.18

Landscape Plan (Decorative Screen Hoarding)

11 May 2010

 

Landscape Plan (Control of Night Time Lighting)

2 June 2010

 

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

3.1.6.        Summary of the current status on licences and/or permits on environmental protection pertinent and submission for contract no. HY/2009/15 under EP-356/2009 are shown in Table 3.8 and Table 3.9.

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

Permits and/or Licences

Reference No.

Issued Date

Valid Period/ Expiry Date

Status

Further Environmental Permit

FEP-04/356/2009

22 Nov 2010

N/A

Valid

FEP-06/364/2009/A

22 Nov 2010

N/A

Valid

Notification of Works Under APCO

321822

24 Sep 2010

N/A

Valid

Construction Noise Permit (CNP) for non-piling equipment

GW-RS0141-11

14 Feb 2011

15 Feb to

14 Aug 2011

Valid

 

GW-RS0168-11

21 Feb 2011

24 Feb to

23 Aug 2011

Valid

 

GW-RS0220-11

16 Mar 2011

16 Mar to

15 Sep 2011

Valid

 

GW-RS0308-11

1 Apr 2011

4 Apr to

27 Sep 2011

Valid

 

GW-RS0594-11

27 Jun 2011

29 Jun to

28 Dec 2011

Valid

Registration as a Chemical Waste Producer

WPN5213-147-C1169-35

15 Nov 2010

N/A

Valid

Water Discharge Licence

WT00008780-2011

22 Mar 2011

22 Mar 2011 to 31 Mar 2016

Valid

 

WT00008905-2011

11 Apr 2011

11 Apr 2011 to 30 Apr 2016

Valid

Billing Account under Waste Disposal Ordinance

7011553

30 Sep 2010

27 Sep 2010 to 27 Jan 2016

Valid

Billing Account under Waste Disposal Ordinance (Dumping by Vessel)

7011761

28 Apr 2011

1 May 2011  to

30 Oct 2011

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal)

EP/MD/11-120

17 Jan 2011

18 Jan 2011 to 17 Jul 2011

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine disposal)

EP/MD/12-017

19 May 2011

1 Jun 2011 to 30 Jun  2011

Valid until 30 Jun 2011

EP/MD/12-028

9 Jun 2011

1 Jul 2011 to

31 Jul  2011

To be valid since 1 Jul 2011

 

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

EP Condition

Submission

Date of Submission

Condition 2.7

Works Schedule and Location Plans

27 Oct 2010

 

Amendment for Works Schedule and Location Plans

12 Nov 2010

Condition 2.8

Silt Curtain Deployment Plan Rev 2

11 May 2011

Condition 2.9

Silt Screen Deployment Plan Rev3

15 Jun 2011

Condition 2.18

Amendment for Proposal for the Removal of Odorous Sediment and Slime

8 Mar 2011

Condition 2.23

Amendment for Noise Management Plan

27 Jan 2011

 

3.1.7.        Implementation status of the recommended mitigation measures during this reporting period is presented in Appendix 3.1.

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

3.1.8.        Summary of the current status on licences and/or permits on environmental protection pertinent and submission for contract no. HK/2010/06 under EP-356/2009 are shown in Table 3.10 and Table 3.11.

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

Permits and/or Licences

Reference No.

Issued Date

Valid Period/ Expiry Date

Status

Further Environmental Permit

FEP-05/356/2009

24 Mar 2011

N/A

Valid

Notification of Works Under APCO

326344

18 Jan 2011

N/A

Valid

Construction Noise Permit (CNP) for non-piling equipment

GW-RS0240-11

25 Mar 2011

7 Apr 2011 to

6 Oct 2011

Valid

 

GW-RS0293-11

1 Apr 2011

6 Apr 2011 to

5 Oct 2011

Valid

 

GW-RS0605-11

29 Jun 2011

13 Jul 2011 to 12 Jan 2012

To be valid since 13 Jul 2011

Billing Account under Waste Disposal Ordinance

7012338

16 Feb 2011

N/A

Valid

Registration as Chemical Waste Producer

WPN5213-134-G2533-01

11 Feb 2011

N/A

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal)

EP/MD/11-148

15 Mar 2011

22 Mar 2011 to 21 Sept 2011

Valid

Dumping Permit (Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine disposal)

EP/MD/12-016

22 May 2011

22 May 2011 to 21 June 2011

Expired

 

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

EP Condition

Submission

Date of Submission

Condition 2.7

Works Schedule and Location Plans

11 March 2011

Condition 2.8

Silt Curtain Deployment Plan

11 April 2011

Condition 2.9

Silt Screen Deployment Plan

11 April 2011

Condition 2.23

Noise Management Plan

11 March 2011

 

4.         Monitoring Requirements

4.1               Noise Monitoring

Noise Monitoring Stations

4.1.1.        The noise monitoring stations for the Project are listed and shown in Table 4.1 and Figure 4.1.  Appendix 4.1 shows the established Action/Limit Levels for the monitoring works.

Table 4.1 Noise Monitoring Station

Station

Description

M1a

Harbour Road Sports Centre

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

M4b

Victoria Centre

M5b

City Garden

M6

HK Baptist Church Henrietta Secondary School

 

Real-time Noise Monitoring Stations

4.1.2.        The real-time noise monitoring stations for the Project are listed and shown in Table 4.2 and Figure 4.1.. Appendix 4.1 shows the established Action/Limit Levels for the monitoring works.

Table 4.2 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

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

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

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

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

Monitoring Equipment

4.1.6.        As referred to in the Technical Memorandum ™ issued under the NCO, sound level meters in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying out the noise monitoring. Immediately prior to and following each noise measurement the accuracy of the sound level meter shall be checked using an acoustic calibrator generating a known sound pressure level at a known frequency. Measurements may be accepted as valid only if the calibration level from before and after the noise measurement agree to within 1.0 dB.

4.1.7.        Noise measurements shall not be made in fog, rain, wind with a steady speed exceeding 5 m/s or wind with gusts exceeding 10 m/s. The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m/s.

 

4.2               Air Monitoring

Air Quality Monitoring Stations

4.2.1.        The air monitoring stations for the Project are listed and shown in Table 4.3 and Figure 4.1. Appendix 4.1 shows the established Action/Limit Levels for the monitoring works.

Table 4.3 Air Monitoring Station

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

4.2.2.        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.

4.2.3.        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.

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

Sampling Procedure and Monitoring Equipment

4.2.5.        High volume samplers (HVSs) in compliance with the following specifications shall be used for carrying out the 1-hour and 24-hour TSP monitoring:

¡P          0.6 - 1.7 m3 per minute adjustable flow range;

¡P          equipped with a timing / control device with +/- 5 minutes accuracy for 24 hours operation;

¡P          installed with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;

¡P          capable of providing a minimum exposed area of 406 cm2;

¡P          flow control accuracy: +/- 2.5% deviation over 24-hour sampling period;

¡P          equipped with a shelter to protect the filter and sampler;

¡P          incorporated with an electronic mass flow rate controller or other equivalent devices;

¡P          equipped with a flow recorder for continuous monitoring;

¡P          provided with a peaked roof inlet;

¡P          incorporated with a manometer;

¡P          able to hold and seal the filter paper to the sampler housing at horizontal position;

¡P          easily changeable filter; and

¡P          capable of operating continuously for a 24-hour period.

 

4.2.6.        Initial calibration of dust monitoring equipment shall be conducted upon installation and thereafter at bi-monthly intervals. The transfer standard shall be traceable to the internationally recognized primary standard and be calibrated annually. The concern parties such as IEC shall properly document the calibration data for future reference. All the data should be converted into standard temperature and pressure condition.

Laboratory Measurement / Analysis

4.2.7.        A clean laboratory with constant temperature and humidity control, and equipped with necessary measuring and conditioning instruments to handle the dust samples collected, shall be available for sample analysis, and equipment calibration and maintenance. The laboratory should be HOKLAS accredited.

4.2.8.        An alternative non-HOKLAS accredited laboratory was set-up for carrying out the laboratory analysis, the laboratory equipment was approved by the ER on 8 February 2011 and the measurement procedures were witnessed by the IEC.  Any measurement performed by the laboratory was be demonstrated to the satisfaction of the ER and IEC.  IEC shall regularly audit to the measurement performed by the laboratory to ensure the accuracy of measurement results. 

4.2.9.        Filter paper of size 8" x 10" shall be labelled before sampling. It shall be a clean filter paper with no pinholes, and shall be conditioned in a humidity-controlled chamber for over 24-hours and be pre-weighed before use for the sampling.

4.2.10.    After sampling, the filter paper loaded with dust shall be kept in a clean and tightly sealed plastic bag. The filter paper shall then be returned to the laboratory for reconditioning in the humidity controlled chamber followed by accurate weighing by an electronic balance with readout down to 0.1 mg. The balance shall be regularly calibrated against a traceable standard.

4.2.11.    All the collected samples shall be kept in a good condition for 6 months before disposal.

 

4.3               Water Quality Monitoring

4.3.1.        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.

4.3.2.        The updated EM&A Manual for EP-356/2009 (Version in March 2011) is approval by EPD on 29 April 2011. As such, the Action Level and Limit Level for the wet season (April ¡V October) will be effected and applied to the water quality monitoring data from 30 April 2011.

Water Quality Monitoring Stations

4.3.3.        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 4.4 and Figure 4.1.  Appendix 4.1 shows the established Action/Limit Levels for the monitoring works.

Table 4.4      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

RW21

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

Excelsior Hotel

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

4.3.4.        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. 

4.3.5.        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.

Sampling Procedures and Monitoring Equipment

4.3.6.        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 4.5 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 4.5 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.

 

Dissolved Oxygen and Temperature Measuring Equipment

4.3.7.        The instrument should be a portable, weatherproof dissolved oxygen measuring instrument complete with cable, sensor, comprehensive operation manuals, and use a DC power source.  It should be capable of measuring:

¡P          a dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation

¡P          a temperature of 0-45 degree Celsius

4.3.8.        It should have a membrane electrode with automatic temperature compensation complete with a cable.  Sufficient stocks of spare electrodes and cables should be available for replacement where necessary. (e.g. YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved similar instrument).

4.3.9.        Should salinity compensation not be build-in in the DO equipment, in-situ salinity shall be measured to calibrate the DO equipment prior to each DO measurement.

Turbidity Measurement Instrument

4.3.10.    The instrument should be a portable, weatherproof turbidity-measuring instrument complete with comprehensive operation manual.  The equipment should use a DC power source.  It should have a photoelectric sensor capable of measuring turbidity between 0‑1000 NTU and be complete with a cable (e.g. Hach model 2100P or an approved similar instrument).

Sampler

4.3.11.    A water sampler comprises a transparent PVC cylinder, with a capacity of not less than 2 litres, and can be effectively sealed with latex cups at both ends.  The sampler should have a positive latching system to keep it open and prevent premature closure until released by a messenger when the sampler is at the selected water depth (e.g. Kahlsico Water Sampler or an approved similar instrument).

Sample Container and Storage

4.3.12.    Water samples for suspended solids measurement should be collected in high-density polythene bottles, packed in ice (cooled to 4¢XC without being frozen), and delivered to ALS Technichem (HK) Pty Ltd. as soon as possible after collection for analysis.

Water Depth Detector

4.3.13.    A portable, battery-operated echo sounder shall be used for the determination of water depth at each designated monitoring station.  This unit can either be handheld or affixed to the bottom of the workboat, if the same vessel is to be used throughout the monitoring programme. 

Salinity

4.3.14.    A portable salinometer capable of measuring salinity in the range of 0-40 ppt shall be provided for measuring salinity of the water at each of monitoring location.

Monitoring Position Equipment

4.3.15.    A hand-held or boat-fixed type digital Global Positioning System (GPS) with waypoint bearing indication or other equivalent instrument of similar accuracy shall be provided and used during monitoring to ensure the monitoring vessel is at the correct location before taking measurements.

Calibration of In-situ Instruments

4.3.16.    All in-situ monitoring instrument shall be checked, calibrated and certified by a laboratory accredited under HOKLAS or equivalent before use, and subsequently re-calibrated at 3 monthly intervals throughout all stages of the water quality monitoring. Responses of sensors and electrodes should be checked with certified standard solutions before each use.  Wet bulb calibration for a DO meter shall be carried out before measurement at each monitoring location.

4.3.17.    For the on site calibration of field equipment by the ET, the BS 127:1993, "Guide to Field and on-site test methods for the analysis of waters" should be observed.

4.3.18.    Sufficient stocks of spare parts should be maintained for replacements when necessary.  Backup monitoring equipment shall also be made available so that monitoring can proceed uninterrupted even when some equipment is under maintenance, calibration, etc.

4.3.19.    Current calibration certificates of equipments are presented in Appendix 4.2.

Laboratory Measurement / Analysis

4.3.20.    Analysis of suspended solids has been carried out in a HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd.  Water samples of about 1L shall be collected at the monitoring stations for carrying out the laboratory SS determination.  The SS determination work shall start within 24 hours after collection of the water samples.  The SS determination shall follow APHA 19ed or equivalent methods subject to the approval of IEC and EPD.

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

Working Area and the Causeway Bay Typhoon Shelter

4.3.21.    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.

4.3.22.    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 4.6 and Figure 4.1.

Table 4.6      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

 

4.3.23.    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 equal to or less than 3m, only the mid-depth will be monitored).

Daily SS Monitoring and 24 hours Turbidity Monitoring System

4.3.24.    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.

4.3.25.    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.

 

 

 

5.         Monitoring Results

5.0.1.        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 4.1. The monitoring results are presented in according to the Individual Contract(s).

5.0.2.        In the reporting month, the concurrent contracts are as follows:

Ÿ         Contract no. HY/2009/11 Central - Wan Chai Bypass - North Point Reclamation;

Ÿ         Contract no. HK/2009/01 ¡V Wan Chai Development Phase II ¡V Central-Wan Chai Bypass at Hong Kong Convention and Exhibition Centre; and

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

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

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

5.0.3.        The environment monitoring schedules for reporting month and coming month are presented in Appendix 5.1.

 

5.1               Noise Monitoring Results

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

5.1.1.        The proposed division of noise monitoring stations for Contract no. HY/2009/11 are summarized in Table 5.1 below:

Table 5.1      Noise Monitoring Stations for Contract no. HY/2009/11

Station

Description

M4b

Victoria Centre

M5b

City Garden

 

5.1.2.        Day time and evening period noise monitoring was conducted at the City Garden and Victoria Centre in the reporting month.

5.1.3.        Noise monitoring results measured in this reporting period are reviewed and summarized.   No exceedance was recorded in the reporting month. Details of noise monitoring results and graphical presentation can be referred in Appendix 5.2. 

 

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC, Contract no. HK/2009/02 - Wan Chai Development Phase II ¡V Central ¡V Wan Chai Bypass at WanChai East and Contract no. HK/2010/06 Wan Chai Development Phase II ¡V Central-Wan Chai Bypass over MTR Tsuen Wan Line

 

5.1.4.        The proposed division of noise monitoring stations are summarized in Table 5.2 below.

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

Station

Description

M1a

Harbour Road Sports Centre

 

5.1.5.        Daytime and evening period noise monitoring was conducted at the Harbour Road Sport Centre in the reporting month.

5.1.6.        Four limit level exceedances were recorded at M1a - Harbour Road Sports Centre on 2, 8, 14 and 24 June 2011 during restricted hour. Major noise source was contributed from Tonnochy Road and water sport competition at Wan Chai Training Swimming Pool.

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

5.1.7.        The noise monitoring for HY/2009/15 was commenced on 10 November 2010. The proposed division of noise monitoring stations are summarized in Table 5.3 below.

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

Station

Description

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

 

5.1.8.        Noise monitoring results measured in the period of daytime and restricted hour are reviewed and summarized.  No exceedance was recorded in reporting month. Details of noise monitoring results and graphical presentation can be referred in Appendix 5.2. 

 

5.2               Real-time Noise Monitoring

5.2.1.        No construction activity with valid Construction Noise Permit was conducted during night time period (2300 to 0700) in this reporting month.

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

5.2.2.        The proposed division of real-time noise monitoring stations are summarized in Table 5.4 below. Real time noise monitoring for the filling works under contract no. HY/2009/11 was commenced on 5 October 2010.

Table 5.4 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

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

5.2.3.        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 5.5 .

 

5.3               Air Monitoring Results

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

5.3.1.        The major construction activity of Contract no. HY/2009/11 was filling works in the reporting month. Air monitoring had been commenced on 11 August 2010. The proposed division of air monitoring stations are summarized in Table 5.5 below.

Table 5.5      Air Monitoring Stations for Contract no. HY/2009/11

Station

Description

CMA1b

Oil Street Community Liaison Centre

CMA2a

Causeway Bay Community Centre

 

5.3.2.        No exceedance was recorded in the reporting month. Details of air monitoring results and graphical presentation can be referred in Appendix 5.3. 

 

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

5.3.3.        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 5.6 below. No exceedance was recorded in the reporting month.

Table 5.6      Air Monitoring Stations for Contract no. HK/2009/01

Station

Description

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

CMA6a

WDII PRE Site Office

 

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

5.3.4.        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 are summarized in Table 5.7 below. No exceedance was recorded in the reporting month.

Table 5.7      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 ¡V Tunnel (Causeway Bay Typhoon Shelter Section)

5.3.5.        Air monitoring was commenced on 15 March 2011 for the land filling work for Contract no. HY/2009/15. The proposed division of air monitoring stations are summarized in Table 5.8 below. No exceedance was recorded in the reporting month.

Table 5.8      Air Monitoring Station for Contract no. HY/2009/15

Station

Description

CMA3a

CWB PRE Site Office

 

5.4               Water Monitoring Results

 

5.4.1.        Due to the enforcement of amber rainstorm warning on 11 June 2011 at ebb tide, water quality was considered substantially affected by urban runoff, which cannot represent the normal impact condition of water quality and safety concerns on working under adverse weather.  Thus, the impact water monitoring on 11 June 2011 at ebb tide was cancelled.

 

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

5.4.2.        The proposed division of water monitoring stations for Contract no. HY/2009/11 are summarized in Table 5.9 below:

Table 5.9      Water Monitoring Stations for Contract no.  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 ¡V Central ¡VWanchai Bypass at HKCEC

5.4.3.        Water monitoring for Contract no. HK/2009/01 was commenced on 23 July 2010. The proposed division of water monitoring stations are summarized in Table 5.10 below.

Table 5.10    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 ¡V Central ¡V Wan Chai Bypass at WanChai East

5.4.4.        Water monitoring for Contract no. HK/2009/02 was commenced on 8 July 2010. The proposed division of water monitoring stations are summarized in Table 5.11 below.

Table 5.11    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 ¡V Central ¡VWanchai Bypass over MTR Tsuen Wan Line

5.4.5.        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 5.12 below.

Table 5.12    Water Monitoring Stations for Contract no. HK/2009/02

Station Ref.

Location

Easting

Northing

Cooling Water Intake

C2

Telecom House

835647.9

815864.4

 

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

5.4.6.        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 are summarized in Table 5.13 below.

Table 5.13          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

816150.0

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.

 

5.4.7.        The enhanced water quality monitoring at C6, C7, Ex-WPCWA-SW and Ex-WPCWA-SE was commenced on 13 January 2011. One dissolved oxygen level at Ex-WPCWA-SE on 28 May 2011 during mid-ebb was exceeded.

5.4.8.        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.

5.4.9.        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 and no compliance checking for intake water monitoring at C6 was undertaken in this reporting month.  

5.4.10.    Water monitoring results measured in this reporting period are reviewed and summarized.  Details of water quality monitoring results and graphical presentation can be referred in Appendix 5.4.

Table 5.14    Summary of Water Quality Monitoring Exceedances in Reporting Month

Contract no.

Water Monitoring Station

Mid-flood

Mid-ebb

DO

Turbidity

SS

DO

Turbidity

SS

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

HY/2009/11

WSD9

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD10

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD15

0

0

0

0

0

0

0

0

0

0

0

0

 

WSD17

0

0

0

0

0

0

0

0

0

0

0

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

1

1

0

0

0

3

1

1

 

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

1

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

0

0

0

0

0

0

0

0

 

WSD21

0

0

0

0

0

0

0

0

0

0

0

0

HY/2009/15

C7

0

0

0

0

0

0

0

0

0

0

0

0

Total

0

0

0

3

3

2

0

0

0

3

3

1

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.

 

5.4.11.    Investigations were found that the exceedances are not related to the Project works. The details of the recorded excedances can be referred to the Section 6.3.

5.5               Waste Monitoring Results

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

5.5.1.        Non-inert C&D waste was disposed of in the reporting month. The non-inert C&D material is reported the unit in m3 in this reporting month. The non-inert C&D material disposed in last reporting month was 4.875m3. Details of the waste flow table are summarized in Table 5.15.

Table 5.15     Details of Waste Disposal for Contract no. HY/2009/11

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

146.25

151.125

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 ¡V Open Sea Disposal), m3

0

(Bulk Volume)

89,500

(Bulk Volume)

South of Cheung Chau

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

0

(Bulk Volume)

129,200

 (Bulk Volume)

East of Sha Chau

 

5.5.2.        There was no marine sediment disposed and no dredging work undertaken in the reporting month.

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

5.5.3.        Inert and non- inert C&D waste were disposed of in this reporting month. Details of the waste flow table are summarized in Table 5.16.

Table 5.16     Details of Waste Disposal for Contract no. HK/2009/01

Waste Type

Quantity this month

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

88.37

6,610.6

TKO137

Inert C&D materials recycled, m3

0

0

N/A

Non-inert C&D materials disposed, m3

37.38

335.96

SENT Landfill

Non-inert C&D materials recycled, kg

0

78,088

N/A

Chemical waste disposed, kg

1,200

3,730

N/A

Marine Sediment (Type 1 ¡V Open Sea Disposal), m3

6,659

(Bulk Volume)

76,123.2

(Bulk Volume)

South of Cheung Chau

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

0

(Bulk Volume)

12,599

(Bulk Volume)

East of Cha Chau

 

5.5.4.        There were marine sediments Type 1 ¡V Open Sea Disposal disposed in the reporting month. The maximum dredging rate in Cross Harbour Water Main was 486m3 per day which was complied with the recommended maximum dredging rate, 1500m3 per day listed in Table 2 of FEP-02/356/2009.

 

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

5.5.5.        Inert and non- inert C&D waste were disposed of in this reporting month. Details of the waste flow table are summarized in Table 5.17.

Table 5.17     Details of Waste Disposal for Contract no. HK/2009/02

Waste Type

Quantity this month

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

11,535

23,058

TKO137

Inert C&D materials recycled, m3

NIL

NIL

N/A

Non-inert C&D materials disposed, m3

24

128

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 ¡V Open Sea Disposal), m3

4,004

 (Bulk Volume)

99,948

(Bulk Volume)

South of Cheung Chau

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

8,440

 (Bulk Volume)

90,994

(Bulk Volume)

East of Sha Chau

 

5.5.6.        There were marine sediments Type 1 ¡V Open Sea Disposal disposed in the reporting month. The maximum dredging rate in submarine sewage pipelines are 1,022m3 per day respectively, which is complied with the recommended maximum dredging rate, 1500m3 per day listed in Table 2 of FEP-03/356/2009.

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

5.5.7.        Non- inert C&D waste was disposed of in this reporting month. Details of the waste flow table are summarized in Table 5.18.

Table 5.18     Details of Waste Disposal for Contract no. HY/2009/15

Waste Type

Quantity this month

Cumulative Quantity-to-Date

Disposal / Dumping Grounds

Inert C&D materials disposed, m3

NIL

3.5

Tuen Mun

Area 38

 

58.7

58.7

TKO137 FB

Inert C&D materials recycled, m3

NIL

184.0

To Contract HY/2009/11

Non-inert C&D materials disposed, m3

27

66.4

SENT Landfill

Non-inert C&D materials recycled, kg

NIL

13,625

N/A

Chemical waste disposed, kg

NIL

NIL

N/A

Marine Sediment (Type 1 ¡V Open Sea Disposal), m3

2,010

16,518

South of Cheung Chau

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

7,780

(Bulk Volume)

139,582

 (Bulk Volume)

East of Sha Chau

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

0

(Bulk Volume)

2,750

(Bulk Volume)

East of Sha Chau

 

 

5.5.8.        Due to the late notification of the Contractor on the quantities of disposed Type I sediment, quantities from February 2011 to this reporting month could only be included in this report. Details of the quantities of disposed Type I sediment in Contract no. HY/2009/15 are summarized in the Table 5.19. These quantities of disposed sediment have been checked and verified by RSS for CWB. Contractor was reminded to observe the dumping reporting time properly.

Table 5.19     Details of Type I Marine Sediment Disposal for Contract no. HY/2009/15

Waste Type

Month

Quantity this month,

(Bulk Volume)

Disposal / Dumping Grounds

Marine Sediment (Type 1 ¡V Open Sea Disposal), m3

Feb 2011

6,070

South of Cheung Chau

Mar 2011

7,465

South of Cheung Chau

Apr 2011

973

South of Cheung Chau

May 2011

0

South of Cheung Chau

Jun 2011

2,010

South of Cheung Chau

 

5.5.9.        In the reporting month, there were marine sediment Type 1 ¡V Open Sea Disposal and Type 1 ¡V Open Sea Disposal (Dedicate Sites) & Type 2 ¡V Confined Marine Disposal marine sediment disposed from the dredging works at TCBR. The maximum dredging rate, 1,025m3 per day in the reporting month is complied with the recommended maximum dredging rate as stipulated in FEP-04/356/2009 within the marine zones at TCBR.

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

5.5.10.    No inert and Non- inert C&D waste were disposed of in this reporting month. Details of the waste flow table are summarized in Table 5.20.

Table 5.20     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, kg

NIL

NIL

N/A

Marine Sediment (Type 1 ¡V Open Sea Disposal), m3

0

2,338

(Bulk Volume)

South Cheung Chau

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

0

(Bulk Volume)

11,165

(Bulk Volume)

East Sha Chau

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

5.5.12.    In the reporting month, there was no dredging works at MTR tunnel crossing and no marine sediment disposed.

6.         Compliance Audit

6.0.1.        The Event Action Plan for construction noise, air quality and water quality are presented in Appendix 6.1.

 

6.1               Noise Monitoring

 

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

 

6.1.1.        No exceedance was recorded in the reporting month.

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

 

6.1.2.        No exceedance was recorded in the reporting month.

 

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

 

6.1.3.        Four limit level exceedances were recorded at M1a - Harbour Road Sports Centre on 2, 8, 14 and 24 June 2011 during restricted hour. Major noise source was contributed from Tonnochy Road and water sport competition at Wan Chai Training Swimming Pool. The construction works were complied with the conditions under valid Construction Noise Permits during the measurement.

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

6.1.4.        No exceedance was recorded in the reporting month.

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

6.1.5.        No exceedance was recorded in the reporting month.

 

6.2               Real-time noise Monitoring

 

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

6.2.1.        No project-related exceedance was recorded in the reporting month.

 

6.3               Air Monitoring

6.3.1.        No exceedance was recorded in the reporting month.

 

6.4               Water Quality Monitoring

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

6.4.1.        Referring to the exceedances shown in Table 5.9, one SS level was exceeded the Action Level at Stations C8. Since there were numerous unknown outfalls from the nearby coastal area closed to the cooling intakes C8, it causes the potential for accumulation of pollutants near the intakes and may lead to potential water quality deterioration at the seawater intake points. Besides, muddy discharge from the outfalls near Oil Street was recorded in reporting month.

6.4.2.        Major marine works were installations of caisson seawall at NPR2E and reclamation work at NPR1 and NPR2W in this reporting month. Proper condition of silt curtain was provided between the barge and the seawall during the filling material transportation. The recorded SS exceedance was considered as not project-related.

Contract no. HK/2009/01 - Wan Chai Development Phase II ¡V Central ¡VWanchai Bypass at HKCEC

6.4.3.        Referring to exceedances recorded at WSD20 on 30 May and 1 June 2011 during mid-flood, no exceedance was recorded in all stations in the vicinity of the filling works at HKCEC1 and marine works for the Cross Harbour Water Mains. It concluded that the exceedances were not related to Project works.

6.4.4.        For the exceedances recorded at C2 on 15 June 2011, the daily inspection of silt screen and removal of floating debris were provided by Contractor on that day. The maintenance works of the silt curtain at West Bridge of HKCEC water channel was conducted on that day morning. Additional sinkers were installed to enhance the silt curtain effectiveness. According to the observation during the monitoring, the deployed silt curtains along HKCEC water channel were in proper condition and no muddy water dispersion was observed. Thus, it was considered not project-related exceedances.

6.4.5.        An Action Level SS exceedance was recorded at C4e on 30 May 2011. According to the observation and recorded photos, the deployed silt curtains in HKCEC water channel were in proper condition. The daily inspection of silt screen and removal of floating debris were provided by Contractor on that day. Besides, geotextiles were in good condition during their inspection. Thus, it was considered not project-related exceedances.

6.4.6.        Exceedances of turbidity and/or SS level at C3 were recorded on 28 and 30 May, 1, 7 and 13 June 2011. Investigation found that the turbidity levels outside the silt screen on 28 May, 1, 7 and 13 June 2011 were well below the Action Level while turbidity exceedances were recorded inside the silt screen. According to the observation during the monitoring and daily inspection report, the deployed silt screen and silt curtains along HKCEC water channel were in proper condition. Recorded exceedances on these days might be caused by trapping of unknown debris inside the silt screen.

6.4.7.        The turbidity exceedance was recorded on 30 May 2011 while the turbidity level outside the silt screen was slightly higher than the Action Level. Fine particles were observed inside the silt screen during water quality monitoring. According to the observation and recorded photos, the deployed silt curtains at HKCEC water channel were in proper condition. The daily inspection of silt screen and removal of floating debris were provided by Contractor on that day. Geotextiles were in good condition during their inspection. The exceedances were considered in related to accumulation of wastewater and debris from the discharge pipe inside the silt screen and not project related exceedances.

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

6.4.8.        No exceedance was recorded in the reporting month.

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

6.4.9.        There was one DO level at ex- WPCWA SE exceeded the Action Level on 28 May 2011 in the Enhanced DO monitoring. In view that no marine activities were undertaken and no odour nuisance was noted during monitoring, the DO exceedance was considered not related to the Project.

 

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

6.4.10.    No exceedance was recorded in the reporting month.

6.4.11.    Summary for notification of exceedances can be referred to Appendix 6.2.

 

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

6.5.1.        There was no non-compliance from the site audits in the reporting period. The observations and recommendations made in each individual site audit session were presented in Section 8.

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

6.6.1.        To follow-up on the exceedances at C3 in the last reporting month, a discharge pipe for HKCEC located in between the C3 intake inlets and inside the silt screen was diverted out of the silt screen and completed on 5 June 2011. Besides, a bund between the eastern and western of the HKCEC water channel was formatted on 2 June 2011 as an enhance mitigation measure to minimize the potential water quality impact from the tidal effect.

6.6.2.        The implementation of the recommended mitigation measures would be continuously followed-up and reported in the next reporting period.

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 Phase III, Central-Wanchai Bypass and Island Eastern Corridor Link projects.

7.0.2.        From the Monthly EM&A report (May 2011) of Central Reclamation Phase III (CRIII) the key works in June 2011 are as follows:

¡P          Type A filling in FRAW and FRAE above +2.5mPD;

¡P          General filling works above +2.5mPD in IRAE;

¡P          Surcharging in FRAW and FRAE;

¡P          Construction of cantilever slab at caisson;

¡P          Construction of storm and foul drainage and gullies in hinterlands for Road P2 and Road D9;

¡P          Construction of GPO boundary wall;

¡P          Construction of PLA boundary wall and entrance;

¡P          Construction of Promenade enhancement works;

¡P          Construction of buildings at PLA berth;

¡P          Road P2 Underpass ramp structures;

¡P          Precasting for retaining wall (offsite);

¡P          Installation of cooling mains discharge pipes in FRAE and FRAW;

¡P          Construction of CWB structure;

¡P          Backfilling of CWB structure;

¡P          Importation of fill material; and

¡P          Strengthening of Man Yiu Street Footbridge

 

7.0.3.        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 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.

7.0.4.        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.         Environmental Site Audit

8.0.1.        During this reporting month, weekly environmental site audits were conducted for Contracts no. HY/2009/11, HK/2009/01, HK/2009/02, HY/2009/15 and HK/2010/06. No non-conformance was identified during the site audits.

8.0.2.        Four site inspections for Contract no. HY/2009/11 were carried out on 30 May, 7, 17, and 21 June 2011. The results of these inspections and outcomes are summarized in Table 8.1.

Table 8.1 Summary of Environmental Inspections for Contract no. HY/2009/11

Item

Date

Observations

Action taken by Contractor

Outcome

110530_02

30-May-11

Idle stockpile should be covered well.

Providing the tarpaulin to cover the idling stockpile

Completion as observed on 7-Jun-11

110607_01

7-Jun-11

Oil stain was found near the oil drum. Contractor was reminded to clear it and provide the drip tray for the chemical container.

Providing the drip tray underneath the chemical container

Completion as observed on 17-Jun-11

110607_02

7-Jun-11

Worn tarpaulin for slope protection was found at NPR1. It should be replaced for well protection.

Replacement of a new tarpaulin on the stockpile for the dust suppression

Completion as observed on 17-Jun-11

110617_01

17-Jun-11

Unknown silty water washed out from the open channel at reclamation area. Contractor was reminded to check and ensure surface runoff and wastewater from the site shall be treated before discharge.

Deployment of silt curtain at the open channel to suppress the silty water washing out during the rainy weather.

Completion as observed on 21-Jun-11

110617_02

17-Jun-11

Stockpile at reclamation near the waterfront shall be covered by tarpaulin in order to prevent washing away during wet season

Providing the tarpaulin on the stockpile

Completion as observed on 21-Jun-11

110621_01

21-Jun-11

Exposed slope at NPR2 shall be covered by tarpaulin to prevent washing away during rainy day.

Providing the tarpaulin on the stockpile

Completion as observed on 28-Jun-11

110621_02

21-Jun-11

Silt curtain at channel T shall be mounted tightly

Mounting the silt curtain tightly

Completion as observed on 28-Jun-11

110621_03

21-Jun-11

Floating refuse near oil street site office area shall be removed

Removal of the floating refuse

Completion as observed on 28-Jun-11

 

8.0.3.        Four site inspections for Contract no. HK/2009/01 were carried out on 1, 8, 16 and 22 June 2011. The results of these inspections and outcomes are summarized in Table 8.2.

Table 8.2      Summary of Environmental Inspections for Contract no. HK/2009/01

Item

Date

Observations

Action taken by Contractor

Outcome

110601_01

1-Jun-11

Two derrick barges along the west bridge were observed with dark smoke emission. Continuous checking and regular maintenance need to be implemented.

Contractor provided the checking and maintenance works to the derrick barges.

Completion as observed on 8-Jun-11.

110601_02

1-Jun-11

Silt curtain at HKCEC shall be closed properly after access.

Properly closed the silt curtain at HKCEC

Completion as observed on 8-Jun-11.

110608_01

8-Jun-11

Silt curtain at western bridge shall be enhanced so as to avoid gap between the geotextile. Increasing frequency of checking silt curtain is recommended.

Maintenance work on the silt curtain and daily inspection on the silt curtains were provided.

Completion as observed on 16-Jun-11.

110608_02

8-Jun-11

Chemical waste storage cabinet shall be provided at the barge.

Providing the chemical waste storage cabinet at barge

Completion as observed on 16-Jun-11.

110608_03

8-Jun-11

The top cover for the conveyor belt shall be enhanced.

Enhanced the top cover of conveyor belt

Completion as observed on 16-Jun-11.

110616_01

16-Jun-11

Floating refuse near water monitoring stations C2 and C3 shall be removed.

Keeping to removal of floating refuse

Completion as observed on 22-Jun-11.

110616_02

16-Jun-11

Silt curtain for the leveling works at Cross Harbour Water Main shall be weight down.

Repaired and weighted-down the silt curtain

Completion as observed on 22-Jun-11.

110616_03

16-Jun-11

Dark smoke emission was observed from air compressor at north-bound of HKCEC water channel. Maintenance work shall be provided to avoid dark smoke emission.

Removed the air compressor offsite for the maintenance works

Completion as observed on 22-Jun-11.

110616_04

16-Jun-11

It was reminded to clear the filling material on the walkway of the derrick barge after daily works.

Removal of the filling material at the walkway of the barge

Completion as observed on 22-Jun-11.

110622_01

22-Jun-11

Part of silt curtain was sunk below the sea level. Proper maintenance shall be provided after adverse weather.

Maintenance the silt curtain in proper condition

Completion as observed on 29-Jun-11.

 

8.0.4.        Four site inspections for Contract no. HK/2009/02 were carried out on 2, 9, 16 and 23 June 2011 during this reporting period.  The results of these inspections and outcomes are summarized in Table 8.3.

Table 8.3      Summary of Environmental Inspections for Contract no. HK/2009/02

Item

Date

Observations

Action taken by Contractor

Outcome

110602_01

2-Jun-11

Water should be sprayed more frequently on the access road for dust control.

Frequently spray water on the dry access and haul road

Completion as observed on 09-

Jun-11

110609_01

9-Jun-11

Uncovered waste oil container without drip tray was located next to chemical waste storage cabinet. Contractor shall place it properly and dispose it regularly by register collector.

Storage of  the chemical in the cabinet and disposal the chemical waste by register collector

Completion as observed on 16-

Jun-11

110616_01

16-Jun-11

Drip tray shall be provided to the oil container near the site entrance.

Placed all oil container on drip tray

Completion as observed on 23-

Jun-11

110623_01

23-Jun-11

Contractor shall check and ensure that the wastewater at WSD pumping station shall be treated before discharge.

Contractor checked and confirmed wastewater was treated by the sedimentation tank before discharge.

Completion as observed on 30-

Jun-11

110623_02

23-Jun-11

Drip tray shall be provided underneath the air compressor at ex-Pet Garden.

Providing the drip tray underneath the air compressor

Completion as observed on 30-

Jun-11

110623_03

23-Jun-11

Stockpile of C&D material shall be covered after daily work.

Leveling down the  idling C&D material after daily works

Completion as observed on 30-

Jun-11

 

8.0.5.        Four site inspections for Contract no. HY/2009/15 were carried out on 31 May, 7, 14 and 21 June in reporting month.  The results of these inspections and outcomes are summarized in Table 8.4.

Table 8.4      Summary of Environmental Inspections for Contract no. HY/2009/15

Item

Date

Observations

Action taken by Contractor

Outcome

110531_01

31-May-11

Drip tray shall be provided for chemical (Automatic transmission fluid) at TS1

Providing the drip tray underneath the chemical

Completion as observed on 7-Jun-11

110531_02

31-May-11

Accumulation of the stagnant water was found at the drip tray. Contractor was reminded to clear it with proper procedure to avoid   land contamination.

Removal of the stagnant water on the drip tray

Completion as observed on 7-Jun-11

110531_03

31-May-11

A gap was found at the northern seawall block at TS1. Proper measure shall be provided to avoid   silty water washing away during wet season.

Gap filler was provided to minimize the gap at the seawall block.

Completion as observed on 7-Jun-11

110531_04

31-May-11

Silty water was found near the southern side of sea wall block, which might be caused by the runoff from the wheel washing at resting area (protion7).

Sand bags were provided to avoid water run-off to the sea

Completion as observed on 7-Jun-11

110607_01

7-Jun-11

Mud was found along Hing Fat Rd. The contractor was reminded to remove the mud and review the effectiveness of the vehicle wheel washing system.

The mud was removed. Contractor washed the vehicle wheel clearly before leaving the site.

Completion as observed on 14-Jun-11

110607_02

7-Jun-11

Impermeable barrier shall be provided and fully deployed in case of any odour sediment dredging at south-west corner of CWBTS.

Impermeable barrier will be provided if any odour sediment is dredged and disposed.

Completion as observed on 14-Jun-11

110607_03

7-Jun-11

Silt curtain at the Ex-PCWA shall be inspected and maintained.

Keeping maintenance of the silt curtain at ex-PCWA

Completion as observed on 14-Jun-11

110614_01

14-Jun-11

The contractor was reminded to improve the wheel washing system at site entrance. Also, worn sandbags shall be replaced for gully protection. Moreover, Improvement work shall be considered to avoid surface runoff flowing outside the site.

Providing the sand bags for the gullies.

Completion as observed on 21-Jun-11

110614_02

14-Jun-11

The plant shall be repaired to avoid dark smoke emission

Providing maintenance works on the plant

Completion as observed on 21-Jun-11

110614_03

14-Jun-11

Oil spillage was observed at Ex-PCWA reclamation area. The contaminated soil on the bare ground shall be disposed as chemical waste.

Removal the contaminated soil as chemical waste

Completion as observed on 21-Jun-11

110614_04

14-Jun-11

Silt curtain at the entrance of Ex-PCWA shall be maintained.

Maintaining the silt curtain at the entrance of ex-PCWA.

Completion as observed on 28-Jun-11

110621_01

21-Jun-11

The deployed silt curtain at North-east of Ex-TPCWA was found damage. The contractor was reminded that silt curtain at North-east of Ex-TPCWA should be maintained in a good condition prior to conduct any filling work at ex-TPCWA.

Keeping maintenance of the silt curtain at Northeast exit of Ex- TPCWA

Completion as observed on 28-Jun-11

110621_02

21-Jun-11

The trees at yacht club shall be avoided any damage during excavation work at Ex-TPCWA.

The tree was avoided any damage during excavation works

Completion as observed on 28-Jun-11

8.0.6.        Five site inspections for Contract no. HK/2010/06 were carried out on 30 May, 7, 17, 20 and 27 June in reporting month.  The results of these inspections and outcomes are summarized in Table 8.5.

Table 8.5      Summary of Environmental Inspections for Contract no. HK/2010/06

Item

Date

Observations

Action taken by Contractor

Outcome

110530_01

30-May-11

A chemical waste storage cabinet shall be placed at site.

Chemical waste storage cabinet was provided at the flat-top barge.

Completion as observed on 7-June-11

110617_01

17-Jun-11

It was advised that additional measure shall be provided to avoid oil leakage during the refilling fuel to the generator

A trip will be provided when the refilling fuel to generator

Completion as observed on 20-June-11

110627_01

27-Jun-11

Defect was found on the drip tray. Contractor shall repair it to avoid oil spillage.

Repairing of the drip tray was provided

Completion as observed on 27-June-11

 

 

9.         Complaints, Notification of Summons and Prosecution

9.0.1.        There was one environmental complaint received on 9 June 2011 regarding an odour nuisance suspected generating from the discharge point ¡V Channel T at Watson Road in part of the site area was related to CWB under Contract no. HY/2009/11.

9.0.2.        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.

9.0.3.        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.

9.0.4.        The details of cumulative complaint log and updated summary of complaints are presented in Appendix 9.1.

9.0.5.        Cumulative statistic on complaints and successful prosecutions are summarized in Table 9.1 and Table 9.2 respectively.

Table 9.1 Cumulative Statistics on Complaints

Reporting Period

No. of Complaints

Commencement works (Mar 2010) to last reporting month

11

June 2011

1

Project-to-Date

12

 

Table 9.2 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

 

 

10.        Conclusion

10.0.1.    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.

10.0.2.    The scheduled construction activities and the recommended mitigation measures for the coming month are listed in Table 10.1.

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

Contract No.

Key Construction Works

Recommended Mitigation Measures

HY/2009/11

¡P          Reclamation works;

¡P          Concreting;

¡P          Slotted panel fixing;

¡P          Drainage Construction works;

¡P          Outfall construction works;

¡P          Sheet Pilling; and

¡P          Construction & installation of Seawall Block

¡P          To avoid concurrent noisy operation

¡P          To locate the plant and equipments far away to the noise sensitive receivers

¡P          Daily visual inspection of silt screen and silt curtain to ensure its operation properly

¡P          Daily clearance of floating debris behind the silt screen

HK/2009/01

¡P          Sheet pile installation for a temporary water channel covering the existing cooling water intake at Dome Promenade would be completed.

¡P          Removal of rock armours within the HKCEC Water Channel would be continued.

¡P          Installation of both silt screen type 1 & 3 at Tsim Sha Tsui would be completed. Subsequently, installation of sheet piles near the proposed silt screen type 3 at Tsim Sha Tsui would be commenced.

¡P          Installation of cross-harbour watermains nos. A3 & B3 and A4 & B4 would be completed.

¡P          Platform erection fir crawler crane mobilization near the existing seawall at Salisbury Garden would be continued and anticipated to be completed.

¡P          Works would be continued at Convention Avenue, VIP Drop-off Area would be continued.

¡P         Excavation of trial pot at Zone B5-1 and Zone b5-3 would be continued in order to determine the suitable alignments for laying the proposed G1 ducts to and from the existing HKCEC Phase 2 LV Switch room.

¡P          To conform the installation and setting as in the silt screen deployment plan

¡P          Frequency spray water on the dry dusty road and on the surface of concrete breaking

¡P          To cover the dusty material or stockpile by impervious sheet

¡P          To space out noisy equipment and position as far as possible from sensitive receiver.

¡P          To well maintain the mechanical equipments / machineries to avoid abnormal noise nuisance.

¡P          Machines and plant that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum

¡P          Daily visual inspection of silt screen and silt curtain to ensure its operation properly

HK/2009/02

¡P          Operating Tseung Kwan O Public Fill Sorting Facility;

¡P          Modification works for disable toilet;

¡P          Construction of passenger terminal;

¡P          Demolition of remaining ferry pier;

¡P          Casting seawall coping for Expo Drive East seawall modification;

¡P          Modification of hoarding at Expo Drive East for public toilet opening.

¡P          Trench excavation and pipe laying works for cooling mains;

¡P          Trench excavation and deck over at Tonnochy Road;

¡P          Lean concrete at P7, P8 and P9 pump stations;

¡P          Hacking H-pile head and cast the base slab at -5mPD for WSD Salt Water Pumping Station at Wan Shing Street;

¡P          Excavation and lateral support at Wan Shing Street for WSD Salt Water Intake;

¡P          Pre-bored H-pile at for WSD Salt Water Intake and Box Culvert N1 at WCR1 Area;

¡P          Dredging for submarine outfall pipe; and

¡P         Connection chamber at DSD Screening Plant

¡P          To cover the dusty material or stockpile by impervious sheet;

¡P          Frequency spray water on the dry dusty road and on the surface of concrete breaking

¡P          To well maintain the mechanical equipments / machineries to avoid abnormal noise nuisance and dark smoke emission

¡P          To conform the installation and setting as in the silt screen and silt curtain deployment plan

¡P          Movable noise barrier shall be deployed for demolition works

¡P          Daily visual inspection of silt screen and silt curtain to ensure its operation properly

 

HY/2009/15

¡P          Seawall block construction at TS4;

¡P          Filling at TS4;

¡P          Maintenance of navigation channel;

¡P          Diaphragm wall construction at TS1 and TPCWAE;

¡P          Precautionary works at Abutment A; and

¡P          Night time protection works at CHT

 

¡P          To conform the installation and setting as in the silt screen and silt curtain deployment plan

¡P          Frequency spray water on the dry dusty road and on the surface of concrete breaking

¡P          To cover the dusty material or stockpile by impervious sheet

¡P          To space out noisy equipment and position as far as possible from sensitive receiver.

¡P          Daily visual inspection of silt screen and silt curtain to ensure its operation properly

HK/2010/06

¡P          Marine Bored Piling;

¡P          Erection of Staging Platform; and

¡P          Disposal of Type 1 and Type 2 Marine Sediment for Pilling Works

 

¡P          To conform the installation and setting as in the silt screen and silt curtain deployment plan

¡P          To space out noisy equipment and position as far as possible from sensitive receiver.

¡P          Daily visual inspection of silt screen and silt curtain to ensure its operation properly