Contract No: HK/2009/05

 

Wanchai Development Phase II and Central Wanchai Bypass

Sampling, Field Measurement and Testing Work (Stage 1)

 

Environmental Permit no. EP-356/2009,

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

and fep-05/356/2009

 

Quarterly Environmental Monitoring
and Audit Report

 

- september to November 2011 -

 

CLIENTS:

PREPARED BY:

 

 

Civil Engineering and Development

Department

 

and

 

Highways Department

 

Lam Geotechnics Limited

 

11/F Centre Point

181-185 Gloucester Road,

Wanchai, H.K.

 

Telephone: (852) 2882-3939

Facsimile: (852) 2882-3331

E-mail: info@lamenviro.com

Website: http://www.lamenviro.com

 

 

 

 

 

CHECKED by:



 

 

 

 

 

                        

Raymond Dai

Environmental Team Leader

 

 

 

DATE:

 

 

4 January 2012

Table of contents

 

EXECUTIVE SUMMARY. 4

1.   Introduction. 9

1.1    Scope of the Report 9

1.2    Structure of the Report 9

2.   Project Background. 10

2.1    Background. 10

2.2    Scope of the Project and Site Description. 10

2.3    Division of the Project Responsibility. 11

2.4    Project Organization and Contact Personnel 12

2.5    Principle Work and Activities. 14

3.   Monitoring Requirements. 18

3.1.    Noise Monitoring. 18

3.2.    Air Monitoring. 19

3.3.    Water Quality Monitoring. 21

4.   Monitoring Results. 24

4.1.    Noise Monitoring Results. 24

4.2.    Real Time Noise Monitoring Results. 25

4.3.    Air Monitoring Results. 25

4.4.    Water Monitoring Results. 27

4.5.    Waste Monitoring Results. 31

5.   Compliance Audit. 35

5.1.    Noise Monitoring. 35

5.2.    Real-time Noise Monitoring. 35

5.3.    Air Monitoring. 35

5.4.    Water Quality Monitoring. 35

5.5.    Site Audit 37

5.6.    Review of the Reasons for and the Implications of Non-compliance. 37

5.7.    Summary of action taken in the event of and follow-up on non-compliance. 37

6.   Complaints, Notification of Summons and Prosecution. 37

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

8.   Conclusion. 43


lIST OF TABLES

 

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

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

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

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

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

Table 2.1      Schedule 2 Designated Projects under this Project

Table 2.2     Details of Individual Contracts under the Project

Table 2.3     Contact Details of Key Personnel

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

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

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

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

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

Table 3.1     Noise Monitoring Stations

Table 3.2     Real Time Noise Monitoring Station

Table 3.3     Air Monitoring Stations

Table 3.4      Marine Water Quality Stations for Water Quality Monitoring

Table 3.5     Marine Water Quality Monitoring Frequency and Parameters

Table 3.6      Marine Water Quality Stations for Enhanced Water Quality Monitoring

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

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

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

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

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

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

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

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

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

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

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

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

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

Table 4.14     Summary of Water Quality Monitoring Exceedances in Reporting Quarter

Table 4.14a    Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting Quarter

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

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

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

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

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

Table 5.1     Summary of Water Quality Monitoring Exceedances in Reporting Quarter

Table 5.1a     Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting Quarter

Table 6.1     Cumulative Statistics on Complaints

Table 6.2     Cumulative Statistics on Successful Prosecutions

 

 

lIST OF FIGUREs

 

Figure 2.1     Project Layout

Figure 2.2     Project Organization Chart

Figure 3.1      Locations of Environmental Monitoring Stations

 

 

lIST OF APPENDIces

 

Appendix 2.1   Environmental Mitigation Implementation Schedule

Appendix 3.1   Action and Limit Level

Appendix 3.2   Report of Review Baseline Noise Level

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

Appendix 4.1   Noise Monitoring Graphical Presentations

Appendix 4.2   Air Quality Monitoring Graphical Presentations

Appendix 4.3   Water Quality Monitoring Graphical Presentations

Appendix 4.4   Real-time Noise Monitoring Results and Graphical Presentations

Appendix 5.1   Event Action Plans

Appendix 6.1   Complaint Log

Appendix 8.1   Construction Programme of Individual Contracts

EXECUTIVE SUMMARY

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

 

Construction Activities for the Reported Period

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

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

September 2011

October 2011

November 2011

Ÿ     Reclamation works;

Ÿ     Geo-textile laying;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works (Open Channel U);

Ÿ     Sheet Pilling;

Ÿ     Pre-casting of Coping; and

Ÿ     Construction & installation of Seawall Concrete Block

Ÿ     Sheet Pilling;

Ÿ     Geo-textile laying;

Ÿ     Slotted panel fixing;

Ÿ     Reclamation works;

Ÿ     Precasting of Coping;

Ÿ     Drainage Construction works;

Ÿ     Installation of berm blocks;

Ÿ     Construction of FEHD carpark and associated works;

Ÿ     Outfall construction works (Open Channel U); and

Ÿ     Installation of precast concrete blocks at seawall type 6 & 7

Ÿ     Geo-textile laying;

Ÿ     Slotted panel fixing;

Ÿ     Reclamation works;

Ÿ     Installation of Precast Coping;

Ÿ     Drainage Construction works;

Ÿ     Installation of Berm Blocks;

Ÿ     Outfall construction works (Open Channel U); 

Ÿ     Installation of precast concrete blocks at seawall type 6 & 7;

Ÿ     Construction of Seawall Type 8; and

Ÿ     Placing Granite Facing Stone

 

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

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

September 2011

October 2011

November 2011

Ÿ     Installation of silt screen (type 1) at TST;

Ÿ     Seawall toe block installation for reinstating seawall at Zone B1-3;

Ÿ     Dredging within HKCEC Water Channel from CH160 to CH190 for Type 1 & 2 sediment;

Ÿ     Trench backfilling and seawall reinstatement for both the completed cross-harbour watermains and the seawall near Expo Promenade (Zone B1-3);

Ÿ     Installation of cross-harbour watermains nos. A8 & B8;

Ÿ     Final trimming within Principle Fairway for cross-harbour watermains installation;

Ÿ     Platform erection for crawler crane mobilization near the existing seawall at Salisbury Garden had been completed and WSD’s consent had been given for mobilization of crawler crane to the jack-up barge. Mobilization;

Ÿ     The trench excavation works at Zone B1-4, B4-2, A1-2, A2-4A, A3-3, A4-3B, A4-3B, A4-3C and A5-5;

Ÿ     Trench excavation works at Zone A3-2A;

Ÿ     Excavation for jacking pits for pipe laying works by heading method along Convention Avenue at Zone A1-2A, A1-4A and A2-4A;

Ÿ     Heading No. H2, H5 and H6 (Mainlaying works by trenchless method); and

Ÿ    Trench excavation for a 1000 dia. Watermains at Salisbury Garden

Ÿ     Installation of silt screen (type 3) at TST;

Ÿ     Removal of rock armour at North Bank of HKCECC Water Channel between CH156 and CH185;

Ÿ     Rockfilling for sheet pile water channel from Ch120 to Ch160;

Ÿ     Installation of sheet pile for cooling water intake at Dome Promenade between CH120 and CH160;

Ÿ     Construction of retaining wall (Base Slab) at Zone B1-3;

Ÿ     Construction of precast RC outfall for subsequent seawall reinstatement at Zone B1-3;

Ÿ     Reclamation HKCEC3w (up to Ch110) within HKCEC Water Channel;

Ÿ     Installation of cross harbour watermains nos. A9/B9 and A10;

Ÿ     Thrust block construction for A5B5;

Ÿ     Dredging of Type 2 sediment from Ch50 to CH250 for subsequent cross-harbour watermains installation off Tsim Sha Tsui;

Ÿ     Installation of pipe pile wall at TST landfall section was commenced;

Ÿ     Installation of sheet pile wall for pipe trench dredging at TST;

Ÿ     The trench excavation works at Zone B1-4, B4-2m B4-5m A1-2, A2-4A, A3-3, A3-2A, A4-3B, A4-4C and A5-5;

Ÿ     The trench excavation works at Zone B 4-2 and B4-5;

Ÿ     Heading No H2, H5 and H7 (Mainlaying works by trenchless method);

Ÿ     Tree transplant and its corresponding planter modification at Expo Drive were commenced. Such preparation works was catered for subsequent TTA implementation at the time when Zone B1-6 and B202 was being fenced off for the subsequent mainlaying works; and

Ÿ    Trench excavation and pipe laying works for a 1000 dia. watermains (CHF) at Salisbury Garden

Ÿ     Rock-filling for sheet pile water channel from CH120 to CH160;

Ÿ     Dredging works within HKCEC Water Channel from CH190 to CH260 for Type 1&2 sediment;

Ÿ     Removal of rock armours from CH150 to CH260 at the north bank of HKCEC Water Channel;

Ÿ     Installation of sheet pile for cooling water intake at Dome Promenade between CH120 and CH160;

Ÿ     Pre-cast RC outfall for subsequent seawall reinstatement at Zone B1-3 has been concreted;

Ÿ     Reclamation of HKCEC3W (up to CH110) with in HKCEC Water Channel has been commenced and substantially completed;

Ÿ     Installation of cross-harbor watermains nos. B10, A11/B11, A12/B12 and A13;

Ÿ     Trust block construction for A5B5 was substantially completed;

Ÿ     Dredging of Type 3 sediment from CH50 to Ch250 for subsequent cross-harbor watermains installation off Tsim Sha Tsui;

Ÿ     Installation of pipe pile wall at TST seafront;

Ÿ     Installation of sheet pile wall for pipe trench dredging at TST was substantially completed;

Ÿ     Mainlaying works at Zone B1-4, B4-2, B4-5, A3-3, A3-2A, HKCEC Way In/Out, A4-3B, A2-23B and A5-5;

Ÿ     Reinstatement works at Zone B1-4 and A3-3;

Ÿ     Mainlaying works at Zone A1-2 was substantially completed;

Ÿ     Mainlaying works at Zone HKCEC Way In/Out;

Ÿ     Headind No. H2 was substantially complete;

Ÿ     Heading No. H3, H4, H5 and H7;

Ÿ     Mainlaying works and the subsequent carriageway reinstatement in Zone A4-3C was substantially completed;

Ÿ     Tree transplantation and its corresponding planter modification at Expo Drive; and

Ÿ    Trench excavation and pipe laying works for a 1000 dia. Watermains (CHF) at Salisbury Garden

 

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

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

September 2011

October 2011

November 2011

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

Ÿ      Steel fixing of Passenger Terminal Building was completed on 8 September 2011;

Ÿ      Demolition of existing ferry pier;

Ÿ      Racking piles and dredging work of Ferry Pier;

Ÿ      Formwork for lift shaft of Passenger Terminal Building;

Ÿ      Fixing G/F to 1/F R.C wall waling on Passenger Terminal Building;

Ÿ      Construction of wash out chamber at Harbour Road and access manhole at Harbour Centre;

Ÿ      Reinstatement work for footpath and existing inspection chamber at Great Eagle Centre;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Approximate 55m cooling water pipe was laid at Harbour Centre, Harbour Road and ex-pet garden;

Ÿ      Grouting for the cross road pipeline of Harbour Road;

Ÿ      Installation of PVC and G.I cable ducts was ongoing at Harbour Road;

Ÿ      Wall and column construction below -0.8 mPD;

Ÿ      Installation of submarine outfall pipe up to CHA-105 and CHB-130, continue backfill on the HDPE pipelines;

Ÿ      Dredging for submarine outfall pipe;

Ÿ      3 out of 12 nos of pre-bored H-pile for box culverts N1 was reached to founding levels;

Ÿ      1st and 2nd loading test of New Ferry Pier;

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

Ÿ      Dredging inside the piles was ongoing. 45 out of 83 piles;

Ÿ      Wall and column construction below -0.8 mPD;

Ÿ      Casting of the base slab of WSD Receiving Pit;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Half landing slab for P7, P8 & P9 Pumping Stations was completed, top slab false work & formwork erection;

Ÿ      Expo Drive East mass concreting coping formwork erection;

Ÿ      Levelling for proposed bream blocks in progress at Vertical Seawall T4 to T6; and

Ÿ     Commenced fabricating the steel frames for water diversion and temporary sheet piles walls for WCR2 reclamation.

Ÿ     Digging trial pit for bus shelter footing at Expo Drive East;

Ÿ     Fixing up reinforcement for 1/F beam of Passenger Terminal Building;

Ÿ     Erecting formwork of 1/F slab of of Passenger Terminal Building;

Ÿ     Fixing 1/F to 2/F R;C wall waling on Passenger Terminal Building;

Ÿ     Formwork for lift shaft of Passenger Terminal Building;

Ÿ     Demolition of existing ferry pier;

Ÿ     Racking piles and dredging work of Ferry Pier;

Ÿ     Demolition of remaining portion of cover walkway of New Public Toilet;

Ÿ     Construction of wash out chamber at Harbour Road and access manhole at Harbour  Centre;

Ÿ     Reinstatement work for footpath and existing inspection chamber at Great Eagle Centre;

Ÿ     Trench excavation and deck over works along Tonnochy Road;

Ÿ     Installation of PVC and G;I cable ducts was ongoing at Harbour Road;

Ÿ     Approximate 56m cooling water pipe was laid at Harbour Centre; Harbour Road and ex-pet garden;

Ÿ     Installation of submarine outfall pipe up to CHA-105 and CHB-130; continue backfill on the HDPE pipelines;

Ÿ     Dredging for submarine outfall pipe;

Ÿ     Filling up grade 75 to gap between casing sleeves and pile casing of new ferry pier;

Ÿ     3rd and 4th loading test of New Ferry Pier were completed on 26 September 2011 and 11 October 2011;

Ÿ     Grouting plug in piles of New Ferry Pier;

Ÿ     Dredging inside the piles was completed;

Ÿ     Installation of lateral support and excavation for common trench for 132kV cable and manholes of Wan Shing Street;

Ÿ     Rock filling and blinding of Wan Shing Street at Bay 22 was completed;

Ÿ     Excavation and lateral support for DSD receiving pits;

Ÿ     8 out of 12 nos of pre-bored H-pile for box culverts N1 was reached to founding levels as of 20 October 2011;

Ÿ     Re-bar fixing for vent shaft of P7; P8 and P9 pumping station;

Ÿ     Casting of top soffit slab of P7 and P9 pumping station were completed on 4 October 2011; and P8 pumping station were completed on 10 October 2011;

Ÿ     Expo Drive East mass concreting coping formwork erection;

Ÿ     Dismantling and erection of formwork for concrete coping;

Ÿ     Commenced fabricating the steel frames for water diversion and temporary sheet piles walls for WCR2 reclamation;

Ÿ     Installation of temporary sheet pile seawall of WCR-2

Ÿ     Trial panel of the 300mm thick topping slab;

Ÿ     R/F formwork erection and steel fixing of Passenger Terminal Building;

Ÿ     Formwork for lift shaft of Passenger Terminal Building;

Ÿ     Sheet piling for Noise Barrier 2 of Helipad;

Ÿ     Demolition of existing ferry pier;

Ÿ     Dismantling and erection of formwork for concrete coping;

Ÿ     Casting of Expo Drive East mass concreting coping formwork erection of Bays 8 and 9 were completed on 11 November 2011, and Bay 5;

Ÿ     Formwork and rebar fixing for the bus shelter footing at Expo Drive East;

Ÿ     Approximate 50m cooling water pipe was laid at Harbour Centre, Harbour Road, Tonnochy Raod and ex-pet garden;

Ÿ     Approximate 50m cable duct was laid at Harbour Road and Tonnochy Road;

Ÿ     Construction of wash out chamber at Harbour Road and access manhole at Harbour Centre;

Ÿ     Trench excavation and cooling mains installation along Tonnochy Road;

Ÿ     Installation of PVC and G.I cable ducts was ongoing at Harbour Road;

Ÿ     Installation of submarine outfall pipe up to CHA-105 and CHB-130, continue backfilling on the HDPE pipelines;

Ÿ     Dredging for submarine outfall pipe;

Ÿ     Filling up grade 75 to gap between casing sleeves and pile casing of new ferry pier;

Ÿ     Installation of lateral support and excavation for common trench for 132kV cable and manholes of Wan Shing Street;

Ÿ     Rebar fixing of base slab and formwork completed of Wan Shing Street at Bay 22 was completed;

Ÿ     Rock filling and blinding of Wan Shing Street at Bays 23 and 24 were completed on 11 November 2011, and Bay 21 was completed on 18 November 2011;

Ÿ     Base slab of Wan Shing Street at Bays 24;

Ÿ     Excavation and lateral support for DSD receiving pits;

Ÿ     Commence D610 pipe pile wall construction at landside cofferdam of salt water intake culvert;

Ÿ     11 out of 12 nos of pre-bored H-pile for box culverts N1 was casted as of 20 November 2011;

Ÿ     Removal of falsework of P9 was completed on 13 November 2011, and P8 was completed on 19 November 2011;

Ÿ     Fabrication of the steel frames for water diversion and temporary sheet pile walls of WCR2 reclamation commenced; and

Ÿ     Installation of temporary sheet pile seawall of WCR-2

 

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

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

September 2011

October 2011

November 2011

Ÿ      Seawall block construction, reclamation work at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area;

Ÿ      Night time protection works at CHT;

Ÿ      Construction of dewatering well at Hung Hing Road and POC; and

Ÿ      Precautionary works at Abutment A

Ÿ      Seawall block construction, reclamation work and diaphragm wall construction preparation works at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area; and

Ÿ      Night time protection works at CHT

 

 -       Seawall block construction and reclamation work at TS4;

 -       Dredging works at ME4;

 -       Night time protection works at CHT;

 -       Precautionary works at Abutment A

 

 

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

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

September 2011

October 2011

November 2011

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works; and

Ÿ      Installation of temporary staging platforms

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works;

Ÿ      Installation of temporary staging platforms

 

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Concreting of bored piles; and

Ÿ      Pre-drilling works

Ÿ       

 

Noise Monitoring

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

Ÿ             Ten limit level exceedances at M1a on 7, 15 and 20 September, 7, 25 and 31 October, 8, 15 and 21 November 2011 and at M2b   Noon Day Gun Area on 21 November 2011  /span> /span>2011 during the evening time period; and

Ÿ             One Action Level exceedance was recorded due to one recorded noise complaints on 6 November 2011.

 

Real-time Noise Monitoring

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

 

Air Quality Monitoring

  1. 1hr and 24hr TSP monitoring were conducted at CMA1b, CMA2a, CMA3a, CMA4a, CMA5a and CMA6a in the reporting quarter. No exceedance was recorded during the reporting quarter.
  2. Since the land located the Oil Street Community Liaison Centre was handed-over to Food and Environmental Hygiene Department (FEHD) for the construction of temporary FEHD depot in the end of September 2011, the air monitoring station  CMA1b was then removed and temporary suspended on 18 September 2011. After liaison with FEHD, the permission of the installation of HVS at temporary FEHD depot was obtained from the premises owner in the early of November 2011. 1hr and 24hr TSP monitoring at CMA1b were resumed on 14 November 2011 and 19 November 2011 respectively.

 

  1. The odour patrol along the odour route with 8 sniffing locations was conducted by a qualified odour patrol member on 7, 20 September 2011 at the concerned hours (afternoon for higher daily temperature). The odour intensity detected at 8 locations was found to be from level 0 up to level 1 which were below the Action Level.

 

Water Quality Monitoring

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

 

  1. Total 3 DO exceedances, 51 turbidity exceedances and 41 SS exceedances were recorded during mid-flood while 5 DO exceedances, 29 turbidity exceedances and 11 SS exceedances were recorded during mid-ebb in the reporting period. Investigations were found that all exceedances are not related to the Project works except project-related exceedances were recorded at C3 and C4w on 10 October and C3 on 12 October 2011. The details of the recorded exceedances can be referred to the Section 5.4.

 

Complaints, Notifications of Summons and Successful Prosecutions

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

 

 

 

1.     Introduction

1.1               Scope of the Report

1.1.1.        Lam Geotechnics Limited (LGL) has been appointed to work as the Environmental Team (ET) under Environmental Permit no. EP-356/2009 and Further Environmental permit nos. FEP-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 to implement the Environmental Monitoring and Audit (EM&A) programme as stipulated in the EM&A Manual of the approved Environmental Impact Assessment (EIA) Report for Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) and in the EM&A Manual of the approved EIA Report for Central-Wan Chai Bypass and Island Eastern Corridor Link (Register No. AEIAR-014/2001).

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

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

1.2               Structure of the Report

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

Section 8     Conclusion

2.     Project Background

2.1               Background

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

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

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

 

2.2               Scope of the Project and Site Description

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

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

2.2.3.        The scope of the Project comprises:

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

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

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

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

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

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

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

 

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

Table 2.1   Schedule 2 Designated Projects under this Project

Item

Designated Project

EIAO Reference

Reason for inclusion

DP1

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

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

Trunk road and road tunnel more than 800 m in length

DP2

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

Schedule 2, Part I, A.1

Primary / district distributor roads

DP3

Reclamation works including associated dredging works

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

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

DP5

Wan Chai East Sewage Outfall

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

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

DP6

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

Schedule 2, Part I, C.12

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

 

 

2.3               Division of the Project Responsibility

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

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

Table 2.2  Details of Individual Contracts under the Project

Contract No.

Contract Title

Associated DP(s)

Construction Commencement Date

HK/2009/01

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

DP3, DP6

23 July 2010

DP1, DP2

25 August 2011

HK/2009/02

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

DP3, DP5

5 July 2010

DP1

26 April 2011

HY/2009/11

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

DP3

17 March 2010

HY/2009/15

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

DP3

10 November 2010

HK/2010/06

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

DP3

22 March 2011

 

2.4               Project Organization and Contact Personnel

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

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

Table 2.3  Contact Details of Key Personnel

Party

Role

Post

Name

Contact No.

Contact Fax

AECOM

Engineer for WDII

Principle Resident Engineer

Mr. Frankie Fan

2587 1778

2587 1877

Engineer for CWB

Principle Resident Engineer

Mr. Peter Poon

3916 1818

3529 2829

China Harbour- CRBC Joint Venture

Contractor under Contract no. HY/2009/11

Project Director

Mr. Cho Yu Fun

3157 1086

3157 1085

Project Manager

Mr. Gregory Wong

3157 1086

Site Agent

Mr. Daniel Cheung

3157 1086

Environmental Officer

Mr. C. M. Wong

3157 1086

Chun Wo  Leader Joint Venture

Contractor under Contract no. HK/2009/01

Site Agent

Mr. Paul Yu

9456 9819

2634 1626

Operation Manager

Mr. Lau Yee Ching

9466 3918

Construction Manager

Mr. Jerry Siu

9493 3664

Construction Manager

Mr. Ricky Lai

9487 6549

Construction Manager

Mr. KK Yuen

3498 1213

Environmental Officer (Compliance Manager)

Mr. Andy Mak

9103 2370

Chun Wo  CRGL Joint Venture

Contractor under Contract no. HK/2009/02

Project Manager

Mr. Chan Sing Cho

3658 3002

2827 9996

Site Agent

Mr. Eric Lam

3658-3048

Environmental Manager

Mr. C.P. Ho

3658-3000

Environmental Officer

Ms. Flora Ng

3658-3064

China State Construction Engineering (HK) Ltd.

Contractor under Contract no. HY/2009/15

Project Manager

Mr. M Y Wong

2823 7879

2528 5651

Site Agent

Mr. Simon Tang

3557 6358

2566 2192

 

 

Construction Manager

Mr. C K Kwok

9779 2162

 

 

 

Assistant Construction Manager (East)

Mr. Gene Cheung

6105 4880

 

 

 

Assistant Construction Manager (West)

Mr. Tony Chiu

9090 0606

 

 

 

Section Agent (West)

Mr. Tang Ka Tung

9473 4771

 

 

 

Environmental Manager

Mr. Samuel Tsui

3557 6347

 

 

 

Environmental Officer

Mr. Daniel Sin

3557 6215

 

Gammon

-Leader JV

Contractor under Contract no. HK/2010/06

Manager

Mr. Simon Tong

9124 2471

2529 2880

Site Agent

Mr. Keith Tse

2529 2068

Environmental Officer

Mr. Lee Wai Man

9481 6024

ENVIRON Hong Kong Limited

Independent Environmental Checker (IEC)

Independent Environmental Checker (IEC)

Mr. David Yeung

3743 0788

3548 6988

Lam Geotechnics Limited

Environmental Team (ET)

Environmental Team Leader (ETL)

Mr. Raymond Dai

2882 3939

2882 3331

 

2.5               Principle Work and Activities

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

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

September 2011

October 2011

November 2011

Ÿ     Reclamation works;

Ÿ     Geo-textile laying;

Ÿ     Drainage Construction works;

Ÿ     Outfall construction works (Open Channel U);

Ÿ     Sheet Pilling;

Ÿ     Pre-casting of Coping; and

Ÿ     Construction & installation of Seawall Concrete Block

Ÿ     Sheet Pilling;

Ÿ     Geo-textile laying;

Ÿ     Slotted panel fixing;

Ÿ     Reclamation works;

Ÿ     Precasting of Coping;

Ÿ     Drainage Construction works;

Ÿ     Installation of berm blocks;

Ÿ     Construction of FEHD carpark and associated works;

Ÿ     Outfall construction works (Open Channel U); and

Ÿ     Installation of precast concrete blocks at seawall type 6 & 7

Ÿ     Geo-textile laying;

Ÿ     Slotted panel fixing;

Ÿ     Reclamation works;

Ÿ     Installation of Precast Coping;

Ÿ     Drainage Construction works;

Ÿ     Installation of Berm Blocks;

Ÿ     Outfall construction works (Open Channel U); 

Ÿ     Installation of precast concrete blocks at seawall type 6 & 7;

Ÿ     Construction of Seawall Type 8; and

Ÿ     Placing Granite Facing Stone

 

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

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

September 2011

October 2011

November 2011

Ÿ     Installation of silt screen (type 1) at TST;

Ÿ     Seawall toe block installation for reinstating seawall at Zone B1-3;

Ÿ     Dredging within HKCEC Water Channel from CH160 to CH190 for Type 1 & 2 sediment;

Ÿ     Trench backfilling and seawall reinstatement for both the completed cross-harbour watermains and the seawall near Expo Promenade (Zone B1-3);

Ÿ     Installation of cross-harbour watermains nos. A8 & B8;

Ÿ     Final trimming within Principle Fairway for cross-harbour watermains installation;

Ÿ     Platform erection for crawler crane mobilization near the existing seawall at Salisbury Garden had been completed and WSD’s consent had been given for mobilization of crawler crane to the jack-up barge. Mobilization;

Ÿ     The trench excavation works at Zone B1-4, B4-2, A1-2, A2-4A, A3-3, A4-3B, A4-3B, A4-3C and A5-5;

Ÿ     Trench excavation works at Zone A3-2A;

Ÿ     Excavation for jacking pits for pipe laying works by heading method along Convention Avenue at Zone A1-2A, A1-4A and A2-4A;

Ÿ     Heading No. H2, H5 and H6 (Mainlaying works by trenchless method); and

Ÿ    Trench excavation for a 1000 dia. Watermains at Salisbury Garden

Ÿ     Installation of silt screen (type 3) at TST;

Ÿ     Removal of rock armour at North Bank of HKCECC Water Channel between CH156 and CH185;

Ÿ     Rockfilling for sheet pile water channel from Ch120 to Ch160;

Ÿ     Installation of sheet pile for cooling water intake at Dome Promenade between CH120 and CH160;

Ÿ     Construction of retaining wall (Base Slab) at Zone B1-3;

Ÿ     Construction of precast RC outfall for subsequent seawall reinstatement at Zone B1-3;

Ÿ     Reclamation HKCEC3w (up to Ch110) within HKCEC Water Channel;

Ÿ     Installation of cross harbour watermains nos. A9/B9 and A10;

Ÿ     Thrust block construction for A5B5;

Ÿ     Dredging of Type 2 sediment from Ch50 to CH250 for subsequent cross-harbour watermains installation off Tsim Sha Tsui;

Ÿ     Installation of pipe pile wall at TST landfall section was commenced;

Ÿ     Installation of sheet pile wall for pipe trench dredging at TST;

Ÿ     The trench excavation works at Zone B1-4, B4-2m B4-5m A1-2, A2-4A, A3-3, A3-2A, A4-3B, A4-4C and A5-5;

Ÿ     The trench excavation works at Zone B 4-2 and B4-5;

Ÿ     Heading No H2, H5 and H7 (Mainlaying works by trenchless method);

Ÿ     Tree transplant and its corresponding planter modification at Expo Drive were commenced. Such preparation works was catered for subsequent TTA implementation at the time when Zone B1-6 and B202 was being fenced off for the subsequent mainlaying works; and

Ÿ    Trench excavation and pipe laying works for a 1000 dia. watermains (CHF) at Salisbury Garden

Ÿ     Rock-filling for sheet pile water channel from CH120 to CH160;

Ÿ     Dredging works within HKCEC Water Channel from CH190 to CH260 for Type 1&2 sediment;

Ÿ     Removal of rock armours from CH150 to CH260 at the north bank of HKCEC Water Channel;

Ÿ     Installation of sheet pile for cooling water intake at Dome Promenade between CH120 and CH160;

Ÿ     Pre-cast RC outfall for subsequent seawall reinstatement at Zone B1-3 has been concreted;

Ÿ     Reclamation of HKCEC3W (up to CH110) with in HKCEC Water Channel has been commenced and substantially completed;

Ÿ     Installation of cross-harbor watermains nos. B10, A11/B11, A12/B12 and A13;

Ÿ     Trust block construction for A5B5 was substantially completed;

Ÿ     Dredging of Type 3 sediment from CH50 to Ch250 for subsequent cross-harbor watermains installation off Tsim Sha Tsui;

Ÿ     Installation of pipe pile wall at TST seafront;

Ÿ     Installation of sheet pile wall for pipe trench dredging at TST was substantially completed;

Ÿ     Mainlaying works at Zone B1-4, B4-2, B4-5, A3-3, A3-2A, HKCEC Way In/Out, A4-3B, A2-23B and A5-5;

Ÿ     Reinstatement works at Zone B1-4 and A3-3;

Ÿ     Mainlaying works at Zone A1-2 was substantially completed;

Ÿ     Mainlaying works at Zone HKCEC Way In/Out;

Ÿ     Headind No. H2 was substantially complete;

Ÿ     Heading No. H3, H4, H5 and H7;

Ÿ     Mainlaying works and the subsequent carriageway reinstatement in Zone A4-3C was substantially completed;

Ÿ     Tree transplantation and its corresponding planter modification at Expo Drive; and

Ÿ    Trench excavation and pipe laying works for a 1000 dia. Watermains (CHF) at Salisbury Garden

 

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

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

September 2011

October 2011

November 2011

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

Ÿ      Steel fixing of Passenger Terminal Building was completed on 8 September 2011;

Ÿ      Demolition of existing ferry pier;

Ÿ      Racking piles and dredging work of Ferry Pier;

Ÿ      Formwork for lift shaft of Passenger Terminal Building;

Ÿ      Fixing G/F to 1/F R.C wall waling on Passenger Terminal Building;

Ÿ      Construction of wash out chamber at Harbour Road and access manhole at Harbour Centre;

Ÿ      Reinstatement work for footpath and existing inspection chamber at Great Eagle Centre;

Ÿ      Trench excavation and deck over works along Tonnochy Road;

Ÿ      Approximate 55m cooling water pipe was laid at Harbour Centre, Harbour Road and ex-pet garden;

Ÿ      Grouting for the cross road pipeline of Harbour Road;

Ÿ      Installation of PVC and G.I cable ducts was ongoing at Harbour Road;

Ÿ      Wall and column construction below -0.8 mPD;

Ÿ      Installation of submarine outfall pipe up to CHA-105 and CHB-130, continue backfill on the HDPE pipelines;

Ÿ      Dredging for submarine outfall pipe;

Ÿ      3 out of 12 nos of pre-bored H-pile for box culverts N1 was reached to founding levels;

Ÿ      1st and 2nd loading test of New Ferry Pier;

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

Ÿ      Dredging inside the piles was ongoing. 45 out of 83 piles;

Ÿ      Wall and column construction below -0.8 mPD;

Ÿ      Casting of the base slab of WSD Receiving Pit;

Ÿ      Excavation and lateral support for DSD receiving pits;

Ÿ      Half landing slab for P7, P8 & P9 Pumping Stations was completed, top slab false work & formwork erection;

Ÿ      Expo Drive East mass concreting coping formwork erection;

Ÿ      Levelling for proposed bream blocks in progress at Vertical Seawall T4 to T6; and

Ÿ     Commenced fabricating the steel frames for water diversion and temporary sheet piles walls for WCR2 reclamation.

Ÿ     Digging trial pit for bus shelter footing at Expo Drive East;

Ÿ     Fixing up reinforcement for 1/F beam of Passenger Terminal Building;

Ÿ     Erecting formwork of 1/F slab of of Passenger Terminal Building;

Ÿ     Fixing 1/F to 2/F R;C wall waling on Passenger Terminal Building;

Ÿ     Formwork for lift shaft of Passenger Terminal Building;

Ÿ     Demolition of existing ferry pier;

Ÿ     Racking piles and dredging work of Ferry Pier;

Ÿ     Demolition of remaining portion of cover walkway of New Public Toilet;

Ÿ     Construction of wash out chamber at Harbour Road and access manhole at Harbour  Centre;

Ÿ     Reinstatement work for footpath and existing inspection chamber at Great Eagle Centre;

Ÿ     Trench excavation and deck over works along Tonnochy Road;

Ÿ     Installation of PVC and G;I cable ducts was ongoing at Harbour Road;

Ÿ     Approximate 56m cooling water pipe was laid at Harbour Centre; Harbour Road and ex-pet garden;

Ÿ     Installation of submarine outfall pipe up to CHA-105 and CHB-130; continue backfill on the HDPE pipelines;

Ÿ     Dredging for submarine outfall pipe;

Ÿ     Filling up grade 75 to gap between casing sleeves and pile casing of new ferry pier;

Ÿ     3rd and 4th loading test of New Ferry Pier were completed on 26 September 2011 and 11 October 2011;

Ÿ     Grouting plug in piles of New Ferry Pier;

Ÿ     Dredging inside the piles was completed;

Ÿ     Installation of lateral support and excavation for common trench for 132kV cable and manholes of Wan Shing Street;

Ÿ     Rock filling and blinding of Wan Shing Street at Bay 22 was completed;

Ÿ     Excavation and lateral support for DSD receiving pits;

Ÿ     8 out of 12 nos of pre-bored H-pile for box culverts N1 was reached to founding levels as of 20 October 2011;

Ÿ     Re-bar fixing for vent shaft of P7; P8 and P9 pumping station;

Ÿ     Casting of top soffit slab of P7 and P9 pumping station were completed on 4 October 2011; and P8 pumping station were completed on 10 October 2011;

Ÿ     Expo Drive East mass concreting coping formwork erection;

Ÿ     Dismantling and erection of formwork for concrete coping;

Ÿ     Commenced fabricating the steel frames for water diversion and temporary sheet piles walls for WCR2 reclamation;

Ÿ     Installation of temporary sheet pile seawall of WCR-2

Ÿ     Trial panel of the 300mm thick topping slab;

Ÿ     R/F formwork erection and steel fixing of Passenger Terminal Building;

Ÿ     Formwork for lift shaft of Passenger Terminal Building;

Ÿ     Sheet piling for Noise Barrier 2 of Helipad;

Ÿ     Demolition of existing ferry pier;

Ÿ     Dismantling and erection of formwork for concrete coping;

Ÿ     Casting of Expo Drive East mass concreting coping formwork erection of Bays 8 and 9 were completed on 11 November 2011, and Bay 5;

Ÿ     Formwork and rebar fixing for the bus shelter footing at Expo Drive East;

Ÿ     Approximate 50m cooling water pipe was laid at Harbour Centre, Harbour Road, Tonnochy Raod and ex-pet garden;

Ÿ     Approximate 50m cable duct was laid at Harbour Road and Tonnochy Road;

Ÿ     Construction of wash out chamber at Harbour Road and access manhole at Harbour Centre;

Ÿ     Trench excavation and cooling mains installation along Tonnochy Road;

Ÿ     Installation of PVC and G.I cable ducts was ongoing at Harbour Road;

Ÿ     Installation of submarine outfall pipe up to CHA-105 and CHB-130, continue backfilling on the HDPE pipelines;

Ÿ     Dredging for submarine outfall pipe;

Ÿ     Filling up grade 75 to gap between casing sleeves and pile casing of new ferry pier;

Ÿ     Installation of lateral support and excavation for common trench for 132kV cable and manholes of Wan Shing Street;

Ÿ     Rebar fixing of base slab and formwork completed of Wan Shing Street at Bay 22 was completed;

Ÿ     Rock filling and blinding of Wan Shing Street at Bays 23 and 24 were completed on 11 November 2011, and Bay 21 was completed on 18 November 2011;

Ÿ     Base slab of Wan Shing Street at Bays 24;

Ÿ     Excavation and lateral support for DSD receiving pits;

Ÿ     Commence D610 pipe pile wall construction at landside cofferdam of salt water intake culvert;

Ÿ     11 out of 12 nos of pre-bored H-pile for box culverts N1 was casted as of 20 November 2011;

Ÿ     Removal of falsework of P9 was completed on 13 November 2011, and P8 was completed on 19 November 2011;

Ÿ     Fabrication of the steel frames for water diversion and temporary sheet pile walls of WCR2 reclamation commenced; and

Ÿ     Installation of temporary sheet pile seawall of WCR-2

 

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

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

September 2011

October 2011

November 2011

Ÿ      Seawall block construction, reclamation work at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area;

Ÿ      Night time protection works at CHT;

Ÿ      Construction of dewatering well at Hung Hing Road and POC; and

Ÿ      Precautionary works at Abutment A

Ÿ      Seawall block construction, reclamation work and diaphragm wall construction preparation works at TS4;

Ÿ      Maintenance dredging of navigation channel and mooring area; and

Ÿ      Night time protection works at CHT

 

 -       Seawall block construction and reclamation work at TS4;

 -       Dredging works at ME4;

 -       Night time protection works at CHT;

 -       Precautionary works at Abutment A

 

 

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

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

September 2011

October 2011

November 2011

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works; and

Ÿ      Installation of temporary staging platforms

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Pre-drilling works;

Ÿ      Installation of temporary staging platforms

 

Ÿ      Installation of bored pile casing;

Ÿ      Excavation of bored piles;

Ÿ      Concreting of bored piles; and

Ÿ      Pre-drilling works

Ÿ       

 

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

 

3.     Monitoring Requirements

3.1.               Noise Monitoring

Noise Monitoring Stations

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

Table 3.1  Noise Monitoring Stations

Station

Description

M1a

Harbour Road Sports Centre

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

M4b

Victoria Centre

M5b

City Garden

M6

HK Baptist Church Henrietta Secondary School

 

Real time Noise Monitoring Stations

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

Table 3.2  Real Time Noise Monitoring Station

District

Station

Description

Tin Hau

RTN1

FEHD Hong Kong Transport Section Whitefield Depot

North Point

RTN2

Oil Street Community Liaison Centre

 

Noise Monitoring Parameters, Frequency and Duration

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

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

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

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

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

3.1.6.        Real time noise shall be carried out at the designated monitoring stations. The following is an initial guide on the regular monitoring frequency for each station on a 24 hours daily basis when noise generating activities are underway:

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

 -           One set of measurements between 1900 and 2300 hours on normal weekdays and 0700 and 2300 hours on public holidays.

 -           One set of measurements between 2300 and 0700 hours on next day on everyday.

 

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

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

 

3.2.                        Air Monitoring

Air Quality Monitoring Stations

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

Table 3.3  Air Monitoring Stations

Station ID

Monitoring Location

Description

CMA1b

Oil Street Community Liaison Centre

North Point

CMA2a

Causeway Bay Community Centre

Causeway Bay

CMA3a

CWB PRE Site Office *

Causeway Bay

CMA4a

Society for the Prevention of Cruelty to Animals

Wan Chai

CMA5a

Children Playgrounds opposite to Pedestrian Plaza

Wan Chai

CMA6a

WDII PRE Site Office *

Wan Chai

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

Air Monitoring Parameters, Frequency and Duration

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

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

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

impact monitoring for odour patrol

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

 -         be at least 16 years of age;

 -         be free from any respiratory illnesses; and

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

 -         before and during odour patrol

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

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

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

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

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

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

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

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

 

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

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

3.3.               Water Quality Monitoring

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

Water Quality Monitoring Stations

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

Table 3.4   Marine Water Quality Stations for Water Quality Monitoring

Station Ref.

Location

Easting

Northing

WSD Salt Water Intake

WSD7

Kowloon South

834150.0

818300.3

WSD9

Tai Wan

837921.0

818330.0

WSD10

Cha Kwo Ling

841900.9

817700.1

WSD15

Sai Wan Ho

841110.4

816450.1

WSD17

Quarry Bay

839790.3

817032.2

WSD19

Sheung Wan

833415.0

816771.0

WSD20

Kennedy Town

830750.6

816030.3

WSD21

Wan Chai

836220.8

815940.1

RW1

Wan Chai (Reprovision)

836188.8

815911.1

Cooling Water Intake

C1

HKCEC Extension

835885.6

816223.0

C2

Telecom House

835647.9

815864.4

C3

HKCEC Phase I

835836.2

815910.0

C4e

Wan Chai Tower and Great Eagle Centre (Eastern)

835932.8

815888.2

C4w

Wan Chai Tower and Great Eagle Centre (Western)

835629.8

815889.2

C5e

Sun Hung Kai Centre (Eastern)

836250.1

815932.2

C5w

Sun Hung Kai Centre (Western)

836248.1

815933.2

C6

World Trade Centre

837009.6

815999.3

C7

Windsor House

837193.7

816150.0

C8

City Garden

837970.6

816957.3

C9

Provident Garden

838355.0

817116.6

RC1

Proposed HKAPA Extension

835487.7

815987.7

RC5

Sun Hung Kai Centre (Reprovision)

836291.4

816029.7

RC7

Windsor House (Temporary Dilution)

837245.2

816156.6

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

 

Water Quality Parameters and frequency

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

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

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

Table 3.5  Marine Water Quality Monitoring Frequency and Parameters

Activities

Monitoring Frequency1

Parameters2

During the 4-week baseline monitoring period

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

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

During marine construction works

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

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

After completion of marine construction works

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

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

Notes:

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

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

 

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

Working Area and the Causeway Bay Typhoon Shelter

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

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

Table 3.6   Marine Water Quality Stations for Enhanced Water Quality Monitoring

Station

Location

C6

Excelsior Hotel

C7

Windsor House

Ex-WPCWA-SW

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

Ex-WPCWA-SE

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

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

Daily SS Monitoring and 24 hours Turbidity Monitoring System

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

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

4.     Monitoring Results

4.0.1.        The environmental monitoring will be implemented based on the division of works areas of each designed project managed under different contracts with separate FEP applied by individual contractors.  Overall layout showing work areas of various contracts, latest status of work commencement and monitoring stations is shown in Figure 2.1 and Figure 3.1. The monitoring results are presented in according to the Individual Contract(s).

 

   4.1.          Noise Monitoring Results

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

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

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

Station

Description

M4b

Victoria Centre

M5b

City Garden

 

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

 

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

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

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

Station

Description

M1a

Harbour Road Sports Centre

4.1.4.        Nine limit level exceedances at M1a on 7, 15 and 20 September, 7, 25 and 31 October, 8, 15 and 21 November 2011 during construction works at evening time for Contract no. HK/2009/02 in reporting quarter. Major noise source was contributed from Tonnochy Road and water sport competition at Wan Chai Training Swimming Pool. The construction work was complied with the conditions under valid Construction Noise Permit during the measurement.

4.1.5.        One Action Level exceedance was recorded due to one noise complaint on 6 November 2011 in relation to HK/2009/01. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.1.

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

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

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

Station

Description

M2b

Noon Gun Area

M3a

Tung Lo Wan Fire Station

 

4.1.7.        One limit level exceedance was recorded at M2b on 21 November 2011 during construction works at evening time for Contract no. HK/2009/02 in reporting quarter.  /span>Details of noise monitoring results and graphical presentation can be referred in Appendix 4.1.

   4.2.          Real Time Noise Monitoring Results

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

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

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

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

District

Station

Description

Tin Hau

RTN1

FEHD Hong Kong Transport Section Whitefield Depot

North Point

RTN2

Oil Street Community Liaison Centre

 

4.2.3          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 4.2

   4.3.          Air Monitoring Results

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

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

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

Station

Description

CMA1b

Oil Street Community Liaison Centre

CMA2a

Causeway Bay Community Centre

 

4.3.2.        Since the filling work was commenced in mid-August 2010, the 1hr and 24-hr TSP monitoring were commenced on 12 August and 11 August 2010 respectively. Until the commencement of the permanent power supply connection at CMA1b on 22 September 2010, the 24hr TSP at CMA1b was then commenced on 27 September 2010.

4.3.3.        Since the land located the Oil Street Community Liaison Centre was handed-over to Food and Environmental Hygiene Department (FEHD) for the construction of temporary FEHD depot in the end of September 2011, the air monitoring station  CMA1b was then removed and temporary suspended on 18 September 2011 due to not available for the air quality monitoring in the existing location at Oil Street Community Liaison Centre and the rejection or no response from the nearby air sensitive receivers in allowing the implementation of impact air quality monitoring. After liaison with FEHD, the permission of the installation of HVS at temporary FEHD depot was obtained from the premises owner in the early of November 2011. 1hr and 24hr TSP monitoring at CMA1b were resumed on 14 November 2011 and 19 November 2011 respectively.

4.3.4.        No exceedance was recorded in the reporting quarter. Details of noise monitoring results and graphical presentation can be referred in Appendix 4.2.

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

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

Table 4.6   Air Monitoring Stations