Contract No: HK/2011/07

Wanchai Development Phase II and Central Wanchai Bypass

Sampling, Field Measurement and Testing Work (Stage 2)

Environmental Permit no. EP-364/2009/C,

Further Evironmental permit nos. fep-01/364/2009, fep-02/364/2009, FEP-05/364/2009/A, FEp-06/364/2009/a, FEp-07/364/2009/a, FEP-09/364/2009/B, fep-10/364/2009/B and fep-11/364/2009/B

Quarterly Environmental Monitoring

and Audit Report

- march 2015 to may 2015 -

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:
	18 June 2015

Table of contents

1. Introduction. 1

1.1 Scope of the Report 1

1.2 Structure of the Report 1

2. Project Background. 2

2.1 Background. 2

2.2 Scope of the Project and Site Description. 2

2.3 Division of the Project Responsibility. 3

2.4 Project Organization and Contact Personnel 5

2.5 Principal Work and Activities. 7

3. Monitoring Requirements. 13

3.1. Noise Monitoring. 13

3.2. Air Monitoring. 15

4. Monitoring Results. 17

4.1. Noise Monitoring Results. 17

4.2. Real Time Noise Monitoring Results. 19

4.3. Air Monitoring Results. 24

4.4. Waste Monitoring Results. 27

5. Compliance Audit. 33

5.1. Noise Monitoring. 33

5.2. Air Monitoring. 33

5.3. Site Audit 34

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

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

6. Complaints, Notification of Summons and Prosecution. 38

7. Cumulative Construction Impact due to the Concurrent Projects. 40

8. Conclusion. 40

lIST OF TABLES

Table I Principal Work Activities for Contract no. HY/2009/18

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

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

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

Table V Principal Work Activities for Contract no. HY/2009/19

Table VI Principal Work Activities for Contract no. HK/2012/08

Table VII Principal Work Activities for Contract no. HY/2010/08

Table VIII Principal Work Activities for Contract no. HY/2011/08

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 Principal Work Activities for Contract no. HY/2009/18

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

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

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

Table 2.8 Principal Work Activities for Contract no. HY/2009/19

Table 2.9 Principal Work Activities for Contract no. HK/2012/08

Table 2.10 Principal Work Activities for Contract no. HY/2010/08

Table 2.11 Principal Work Activities for Contract no. HY/2011/08

Table 3.1 Noise Monitoring Stations

Table 3.2 Real Time Noise Monitoring Stations

Table 3.3 Air Monitoring Stations

Table 4.1 Noise Monitoring Station for Contract no. HY/2009/18

Table 4.2 Noise Monitoring Stations 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 Noise Monitoring Stations for Contract no. HY/2009/19

Table 4.5 Noise Monitoring Stations for Contract no. HY/2010/08

Table 4.6 Noise Monitoring Stations for Contract no. HY/2011/08

Table 4.7 Real Time Noise Monitoring Stations for Contract no. HY/2009/19

Table 4.8 Air Monitoring Stations for Contract no. HY/2009/18

Table 4.9 Air Monitoring Stations for Contract no. HK/2009/01

Table 4.10 Air Monitoring Station for Contract no. HK/2009/02

Table 4.11 Air Monitoring Station for Contract no. HY/2009/15

Table 4.12 Air Monitoring Stations for Contract no. HY/2009/19

Table 4.13 Air Monitoring Stations for Contract no. HK/2012/08

Table 4.14 Air Monitoring Stations for Contract no. HY/2010/08

Table 4.15 Air Monitoring Stations for Contract no. HY/2011/08

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/2009/18

Table 4.19 Details of Waste Disposal for Contract no. HY/2009/15

Table 4.20 Details of Waste Disposal for Contract no. HY/2009/19

Table 4.21 Details of Waste Disposal for Contract no. HK/2012/08

Table 4.22 Details of Waste Disposal for Contract no. HY/2012/08

Table 4.23 Details of Waste Disposal for Contract no. HY/2011/08

Table 6.1 Cumulative Statistics on Complaints

Table 6.2 Cumulative Statistics on Successful Prosecutions

lIST OF FIGUREs

Figure 2.1 Project Layout

Figure 2.2 Project Organization Chart

Figure 3.1 Locations of Environmental Monitoring Stations

lIST OF APPENDIces

Appendix 2.1 Environmental Mitigation Implementation Schedule

Appendix 3.1 Action and Limit Level

Appendix 4.1 Noise Monitoring Results and Graphical Presentations

Appendix 4.2 Real-time Noise Monitoring Results and Graphical Presentations

Appendix 4.3 Air Quality Monitoring Results and Graphical Presentations

Appendix 5.1 Event Action Plans

Appendix 6.1 Complaint Log

Appendix 6.2 Notification of Exceedance

Appendix 8.1 Construction Programme of Individual Contracts

EXECUTIVE SUMMARY

1. This is the Environmental Monitoring and Audit (EM&A) Quarterly Report – March 2015 to May 2015 specific for Environmental Permit no. EP-364/2009/C, Further Environmental Permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/A, FEP-09/364/2009/B, FEP-10/364/2009/B AND FEP-11/364/2009/B. The EM&A report is prepared by the Environmental Team (ET) employed under Contract No. HK/2011/07 – Wan Chai Development Phase II and Central Wanchai Bypass – Sampling, Field Measurement and Testing Works (Stage 2). This report presents the environmental monitoring findings and information recorded during the period March 2015 to May 2015. The cut-off date of reporting is at 27th of each reporting quarter.

2. In the reporting quarter, the principal work activities of individual contracts are included as follows:

Contract no. HY/2009/18 - Central - Wan Chai Bypass (CWB) - Central Interchange under FEP-05/364/2009/

Major construction activities for Contract no. HY/2009/18 have been commenced on 21 April 2011. During this reporting period, the principal work activities for Contract no. HY/2009/18 are summarized as below:

Table I Principal Work Activities for Contract no. HY/2009/18

March 2015	April 2015	May 2015
Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and waterproofing and backfill Ÿ Road works Ÿ Bridges construction	Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and Ÿ waterproofing and backfill Ÿ Road works Ÿ Bridges construction	Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and Ÿ waterproofing and backfill Ÿ Road works Ÿ Bridges construction

Contract no. HK/2009/01 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Hong Kong Convention and Exhibition Centre - Tunnel Works under FEP-02/364/2009

Major construction activities for Contract no. HK/2009/01 have been commenced on 25 August 2011. During this reporting period, the principal work activities are summarized as below:

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

March 2015	April 2015	May 2015
Ÿ Stage 1 Construction of roadside barrier Ÿ Stage 1 Demolition of temporary upstand Ÿ Stage 1 Construction of retaining wall RW1 at slip road 2 Ÿ Stage 2 ELS works Ÿ Stage 2 Removal of 2nd layer of strut/waling at Bay 7 Ÿ Stage 2 Steel fixing and formwork erection at Bay 7, 8 and 9 Ÿ Stage 2 Rebar fixing of exhaust duct Ÿ Stage 3 ELS excavation and strut installing works Ÿ Stage 3 Construction of box culvert Bay 2 (base slab) and S5A and 5B salt water-main connection Ÿ Stage 3 Construction of box culvert Bay 3 to 6 Ÿ Trench excavation works at A3-5B for sewage pipeline at Fenwick Pier Street Ÿ Cooling Main Installation (BI/BG/BF) at Expo Drive East Outfall and BF at Fleming Road Ÿ Installation works for Cooling Main (BF)/ Salt Watermain (S3) / Fresh Watermain (F3) Ÿ Work zone X1-1 to X1-3 Ÿ Construction of C3-1 Outfall Ÿ Reinstatement of cable draw pits at Lung King Street was in progress	Ÿ Stage 1 Construction of roadside barrier and defect rectification Ÿ Stage 2 Backfilling of retaining wall RW1 at slip road 2 Ÿ Stage 2 ELS and demolition works of bulkhead wall at Bay 10 Ÿ Stage 2 Steel fixing and formwork erection at Bay 7, 8 and 9 OHVD Ÿ Stage 2 Construction of exhaust duct at slip road 3 Ÿ Stage 3 ELS excavation and strut installing works Ÿ Stage 3 Base slab construction of box culvert Bay 2 and Bay 7 Ÿ Stage 3 Construction of box culvert Bay 1 Ÿ Stage 3 Construction of Outfall at Expo Drive East and backfilling work Ÿ Sewerage pipeline at Fenwick Pier Street Ÿ Pipe laying works for Cooling Main (BI/BG/BF) Ÿ Work zone X1-1 to X1-4 at Fleming Road Ÿ Pipe laying works of C3-1B and backfilling works of C3-1A	Ÿ Stage 1 Construction of roadside barrier was completed and defect rectification Ÿ Stage 2 Construction of exhaust duct Ÿ Stage 2 Construction of base slab Bay 10 Ÿ Stage 3 ELS excavation and strut installing work Ÿ Stage 3 Box culvert diversion Ÿ Stage 3 Base slab construction of box culvert Ÿ Stage 3 Construction works of Outfall at Expo Drive East Ÿ Cooling Main Installation (BI/BG) at Expo Drive East Ÿ Removal of abandoned cooling main (P7/P8) at Convention Avenue Ÿ Sewerage Pipeline A3-4B at Fenwick Pier Street Ÿ Installation works for Cooling Main (BI/BG) / Salt Watermain (S3)/ Fresh Watermain (F3) Ÿ Reinstatement of Expo Drive East

Contract no. HK/2009/02 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Wan Chai East (CWB Tunnel) under FEP-01/364/2009

Major construction activities for Contract no. HK/2009/02 have been commenced on 26 April 2011. During this reporting period, the principal work activities are summarized as below:

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

March 2015	April 2015	May 2015
Ÿ Core hole at -19mPD for bulk head wall demolition and wire cut Ÿ Blinding layer application for base slab Ÿ Waterproofing application for base slab Ÿ Concreting for base slab Ÿ Struts dismantling Ÿ Construction of capping beam at the west side Ÿ Excavation at the west side Ÿ Installation of observation well, dewatering well, piezometer at the east side Ÿ Grouting and shear pin installation for all D-wall panels at the east side Ÿ Packer tests	Ÿ Bulkhead wall breakthrough by Robot at the north side Ÿ Bulkhead wall breakthrough by saw cut and wire cut Ÿ Waterproofing application for north and south walls Ÿ Rebar fixing at the north wall from Bay 1 to Bay 4 Ÿ Rebar fixing at the south wall of Bay 3 and Bay 4 Ÿ Formworks erection was now in progress at central wall of Bay 4, at south wall and north wall of Bay 1 Ÿ Concrete cast for central wall at Bay 1, Bay 2 and Bay 3 Ÿ Excavation at the west side and struts installation. Ÿ Packer tests at the east side Ÿ Excavation at the east side and welding for struts installation Ÿ Installation of observation well, dewatering well, piezometer at the east side Ÿ Pump test set up and schedule for pump test	Ÿ Removal of scaffolding and clearance works Ÿ Bulkhead wall breakthrough by Robot at -12.9mPD upper part Ÿ Dismantling of temporary working platform Ÿ Preparation for breakthrough the lower part by Robot Ÿ Concrete cast for central wall at Bay 4 Ÿ Concrete cast for south side wall at Bay 1, Bay 2, Bay 3 and Bay 4 Ÿ Concrete cast for north side wall at Bay 1, Bay 2, Bay 3 and Bay 4 Ÿ Concrete cast for OHVD base slab at Bay 1 Ÿ Rebar fixing and formworks erection for OHVD side wall at Bay 1 Ÿ Pump test Ÿ Excavation at Strut Layer S2 of the west side Ÿ Excavation at Strut Layer S2 of the east side

Contract no. HY/2009/15 - Central-Wanchai Bypass – Tunnel (Causeway Bay Typhoon Shelter Section) under FEP-06/364/2009/A

Major construction activities for Contract no. HY/2009/15 has been commenced on 13 July 2011. During this reporting period, the principal work activities are summarized as below:

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

March 2015	April 2015	May 2015
Ÿ Mined Tunnel drill-and-break works at East and West Portal Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW	Ÿ Mined Tunnel drill-and-break works at East and West Portal Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW Ÿ Fabrication of first layer of ELS for TPCWAW	Ÿ Mined Tunnel drill-and-break works at East and West Portal Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW

Contract no. HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link under FEP-07/364/2009/A

Major construction activities for Contract no. HY/2009/19 have been commenced on March 2011. During this reporting period, the principal work activities are summarized as below:

Table V Principal Work Activities for Contract no. HY/2009/19

March 2015	April 2015	May 2015
Ÿ Bored piling (Land) Ÿ Demolition of ELS for Cut &Cover Tunnel and EVB Ÿ Laying of 1350f pipe Ÿ Pre-bored H-pile for Admin. Building continue Ÿ Construction of Bridge E Ÿ Installation of Noise Barrier/enclosure Ÿ IECL Road modification and removal of Median Barrier Ÿ Construction of TB Bridge Ÿ Abutment D12 construction Ÿ Saw cut of parapet at IEC East bound Ÿ Construction for TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ JBI Gantry Installation	Ÿ Demolition of ELS for Cut &Cover Tunnel and EVB Ÿ Pre-bored H-pile for Approach Ramp Ÿ IECL Road modification and removal of Median Barrier Ÿ Abutment D12 construction Ÿ Saw cut of parapet at IEC East bound Ÿ Construction of TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ Saw cut of existing west fast lane of IEC bridge Ÿ Demolition of bulk head wall between C15 to C19 Ÿ Column modification at F1 to F8	Ÿ Demolition of ELS for EVB Ÿ Pre-bored H-pile for Pier 23 Ÿ Construction of TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ Saw cut of existing west fast lane of IEC bridge Ÿ Demolition of bulk head wall between C15 to C19 Ÿ Column modification at F1 to F8 Ÿ

Contract no. HK/2012/08 – Wan Chai Development Phase II – Central- Wan Chai Bypass at Wan Chai West under FEP-09/364/2009B

Table VI Principal Work Activities for Contract no. HK/2012/08

March 2015	April 2015	May 2015
Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Construction of ELS at Zone A1	Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Excavation and installation of lateral support at top-down area Ÿ Pre-bored H-pile construction	Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Construction of top-down slab Ÿ Pre-bored H-pile construction

Contract no. HY/2010/08 – Central and WanChai Bypass – Slip road 8 section under FEP-10/364/2009B

Table VII Principal Work Activities for Contract no. HY/2010/08

March 2015	April 2015	May 2015
Ÿ Tree transplanting works next to W1, Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Construction of Bowling Green Office & Ÿ Construction of ramp for TTA stage II – eastbound	Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Provisional of Bowling Green, Ÿ Milling & paving works for TTA stage II – westbound &. Ÿ Construction of ramp for TTA stage II – eastbound	Ÿ Tree protection works next to existing BGO Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Renovation works for Bowling Green Office, Ÿ Reprovisional of Bowling Green & Ÿ Demolition of an existing bowling green office

Contract no. HY/2011/08 –Central - Wan Chai Bypass (CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning under FEP-11/364/2009B

Table VIII Principal Work Activities for Contract no. HY/2011/08

March 2015	April 2015	May 2015
Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Site preparation for East Vent Shaft	Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Construct reinforcement concrete structure for EVS	Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Construct reinforcement concrete structure for EVS

Noise Monitoring

3. Per EPD’s letter dated 3 Aug 2012 (received by ET on 6 Aug 2012 through HyD), noise monitoring at M8 – City Hall commenced on 7 Aug 2012, and the monitoring station M7e – International Finance Centre (Eastern Podium) has become a reference station starting from 7 Aug 2012.
4. Due to safety concerns, the monitoring location for M4b – Victoria Centre has been finely adjusted from 7 June 2012.
5. Monitoring for report of review baseline noise level was performed from 11 April 2011 to 8 June 2011. Then the report was submitted on the 20 June 2011, verified by IEC on 18 July 2011 and was approved by ER by January 2012. The new baseline is used for the noise calculation starting from the January 2012 reporting month.
6. Noise monitoring was conducted at M1a - Harbour Road Sports Center; M2b - Noon-day gun area; M3a - Tung Lo Wan Fire Station; M4b - Victoria Center; M5b - City Garden, M6 - HK Baptist Church Henrietta Secondary School, M7e and M7w – International Finance Centre eastern and western wing, and M8 – City Hall on a weekly basis.
7. Three limit level exceedances at M6 – HK Baptist Church Henrietta Secondary School were recorded on 21 April 2015, 5 and 27 May 2015 in this reporting quarter. The exceedance on 21 April 2015 was concluded as non-project related and the exceedances on 5 and 27 May 2015 were considered as project related.

Real time Noise Monitoring

8. 24-hour real time noise monitoring was conducted at RTN1 - FEHD Hong Kong Transport Section Whitefield Depot for the pilling works in FEHD Whitfield Depot and RTN2 – Tunnel (North Point Section) and Island Eastern Corridor Link during the period from 28 September 2012 til 10am on 5 October 2012 in the reporting period.
9. Real time noise monitoring station at Oil Street Community Liaison Centre (RTN2- Oil Street Community Centre) was relocated from Oil Street Community Liaison Centre to Hong Kong Electric (RTN2a- Electric Centre) on 5 Oct which is a representative of the noise sensitive receiver City Garden. The baseline noise level of RTN2a will adopt the results derived from the baseline noise monitoring conducted in Electric Centre from 4 December 2009 to 17 December 2009.
10. As confirmed by CWB RSS, the IECL parapet removal operations will commence in March 2013. Liaison was conducted with HK Baptist Church Henrietta Secondary School and Po Leung Kuk Yu Lee Mo Fan Memorial School regarding the set up of RTN3 real time noise monitoring station. Po Leung Kuk Yu Lee Mo Fan Memorial School grant permission for set up on 4 Sep 2012 and station set up was performed on 14 Sep 2012.
11. Real Time Noise Monitoring at RTN3- Po Leung Kuk Yu Lee Mo Fan Memorial School was commenced since 06 Oct 2012.
12. Causeway Bay Community Centre has granted permission for set up of real time noise monitoring station on 21 Dec 2012 and station set up was performed on 27 Dec 2012. The Baseline noise level of RTN4- Causeway Bay Community Centre will adopt the results from the baseline noise monitoring report for EP/364/2009 in 22 April 2010 in which approved by EPD.
13. According to clause 3.1 stated in EP-364/2009B, “the real-time monitoring system shall be in place no later than two weeks before the commencement date of demolition works of the existing Island Eastern Corridor”. IEC demolition associated construction works was commenced on 3 Feb 2013 and Real time noise monitoring at RTN4-Causeway Bay Community Centre was commenced on 13 Jan 2013.
14. Real-time noise monitoring station RTN1-FEHD Whitfield Depot was finely adjusted from 2/F to roof-top at FEHD Whitfield Depot on 24 June 2013 with respect to the commencement of advance works for IEC parapet demolition.
15. No project related exceedance was recorded in March and April reporting month and no limit level exceedance was recorded in May reporting month at RTN1- FEHD Hong Kong Transport Section Whitfield Depot during this reporting quarter.
16. No project related exceedance was recorded in March, April and May reporting month at RTN2a-Hong Kong Electric Centre during this reporting quarter.
17. No limit level exceedance was recorded in March reporting month and no project related exceedance in April reporting month at RTN3-Yu Lee Mo Fan Memorial School during this reporting quarter. Non project related exceedances and one project related exceedance was recorded in the May reporting month at RTN3-Yu Lee Mo Fan Memorial School during this reporting quarter.
18. No limit level exceedances were recorded in March, April and May reporting month at RTN4-Causeway Bay Community Centre during this reporting quarter.

Air Quality Monitoring

19. Due to extension of site boundary by contractor of HY/2009/19, location of air monitoring station CMA1b – Oil Street Community Liaison Centre has been finely adjusted on 21 April 2012.
20. 1-hour and 24-hour Total Suspended Particulates (TSP) monitoring were conducted at CMA1b - Oil Street Community Liaison Centre; CMA2a - Causeway Bay Community Center; CMA3a - CWB PRE Site Office Area; CMA4a – Society for the Prevention of Cruelty to Animals; CMA5a - Children Garden opposite to Pedestrian Plaza; MA1e and MA1w – International Finance Centre eastern and western wing on every six days basis.
21. No action or limit exceedances were recorded in this reporting quarter.

Complaints, Notifications of Summons and Successful Prosecutions

22. Four environmental complaints were received in the reporting quarter.

23. First public complaint regarding construction dust impact referred by EPD was received by ET on 09 April 2015 (EPD Ref.:H05/RS/00008074-15 dated 9 April 2015). The complainant reported that:
24. Construction dust was generated from lorries transporting out of the construction via site exit near Expo Drive Central without wheel washing at the morning of 7 April 2015. Lorries were also found transporting out of the construction site via gates V2 and V8 without wheel washing and causing dust nuisance at about 10:30 hours on 9 April 2015.
25. ET confirmed with the Resident Site Staff that on 7 April 2015, major vehicle movements included oil tanker passing at Gate V2 at Expo Drive East and dump truck passing at Gate V8 at Expo Drive Central under Contract HK/2009/01. On 9 April 2015. major vehicle movements include oil tanker, crane lorry and dump truck passing at Gate V2 at Expo Drive East and dump truck at Gate V8 at Expo Drive Central under Contract HK/2009/01.
26. Mitigation measures adopted by the Contractor of HK/2009/01 at the above locations include water hose was provided for wheel washing at Gate V2 and Gate V8, concrete paving at site exit, dump truck fitted with mechanic cover and cleaned before leaving construction site and regular street washing at Expo Drive Central.
27. According to the relevant site records under Contract HK/2009/01, on 7 April 2015, major vehicle movements included oil tanker passing at Gate V2 at Expo Drive East and dump truck passing at Gate V8 at Expo Drive Central under Contract HK/2009/01 while on 9 April 2015 major vehicle movements include oil tanker, crane lorry and dump truck passing at Gate V2 at Expo Drive East and dump truck at Gate V8 at Expo Drive Central under Contract HK/2009/01.
28. At the above locations, mitigation measures including water hose for wheel washing at Gate V2 and Gate V8; concrete paving at site exit; dump truck fitted with mechanic cover and cleaned before leaving construction site and regular street washing at Expo Drive Central were generally adopted by the Contractor of HK/2009/01.
29. In view of the public concern on the complaint date, the Contractor of HK/2009/01 was advised to conduct cleaning at the concerned site exit point and the section of public road adjoining the site exit to clear any residue grit and silt deposit to avoid further dust impact.
30. Follow up inspection was conducted on 16 April 2015 during weekly environmental inspection and mitigation measures including water spraying for dusty haul road and provision of wheel washing were in place. The construction site exit was observed clear from residue silt / grit at the concerned location.
31. In view of the public concern, the contractor was advised to conduct training to the construction site workers to enhance the effectiveness of wheel washing and to ensure proper wheel washing is provided for dump truck and other vehicle prior to leaving the construction site to avoid generating any dust nuisance.

32. Second public complaint regarding construction noise impact referred by EPD was received by ET on 09 April 2015 (EPD Ref.:H05/RS/00007861-15 dated 9 April 2015). The complainant reported that construction noise was emanated from the construction site at Convention Avenue near Renaissance Harbor View Hotel during the period of Easter Holiday, including April 3 at about 13:00 hours.
33. ET confirmed with the Resident Site Staff that from 3 April 2015 to 7 April 2015, from 08:00 hours to 18:00 hours, and at about 13:00 hours on 3 April 2015 at area CWB Tunnel Stage 3, backfilling works was conducted under HK/2009/01. Either 1 no. of dump truck or 1. no. of excavator was operated on site at each given time during the concerned period.
34. According to the relevant site records under Contract HK/2009/01, from across 08:00hrs to 18:00hrs during the period from 3 April 2015 to 7 April 2015, backfilling works was conducted under Contract HK/2009/01 at CWB Tunnel Stage 3. Either 1 no. of dump truck and 1 no. of excavator was operated on site at each given time during the concerned period and the relevant Construction Noise Permit GW-RS0104-15 for the works was in place and the same construction activity was undertaken at around 13:00hrs on 3 April 2015.
35. No other concurrent construction activity was undertaken at the concerned location during the concerned period under Contract HK/2009/01. The construction activity conducted under Contract HK/2009/01 during the concerned period was in compliance with the statutory requirement.
36. Nevertheless, in view of the concern regarding the noise nuisance raised by the public at the concerned location, it is considered desirable for the Contractor of HK/2009/01 to review the truck unloading procedures of the specific construction task to minimize potential noise emanated during the course for work.

37. Third public complaint regarding visual impact received by the RSS was referred to the ET on 15 April 2015 (ICC Case Ref.: 2-885677297 dated 13 April 2015). The complainant reported that:

“I live in a building next to Gloucester Road in Causeway Bay. Recently, I am suffering from unnecessary light source from the construction site. The banners of the construction companies are always illuminated with very bright lights.”

38. ET confirmed with the Resident Site Staff that the concerned lighting for the banners was maintained under Contract HY/2010/08.
39. The concerned lighting for the banners was maintained under Contract HY/2010/08 and the concerned lighting was subsequently switched off at all times since 13 April 2015 to alleviate the lighting nuisance caused to the surroundings.

40. Fourth public complaint regarding construction noise impact referred by EPD was received by ET on 23 April 2015 (EPD Ref.:H05/RS/00009456-15 dated 23 April 2015). The complainant reported that construction noise emanated from the road work at Fleming Road and Convention Avenue near Renaissance Harbour View Hotel almost every night recently causing nuisance.
41. ET confirmed with the Resident Site Staff that from 21:00hrs on 20 April 2015 to 06:00hrs on 21 April 2015 and from 21:00hrs on 21 April 2015 to 06:00hrs on 22 April 2015, cooling main connection works was undertaken by the Contractor of Contract HK/2009/01 at the concerned location. Total 1 no. of crane lorry and 1 no. of excavator were in operation.
42. According to the relevant site records under Contract HK/2009/01, from 21:00hrs on 20 April 2015 to 06:00hrs on 21 April 2015 and from 21:00hrs on 21 April 2015 to 06:00hrs on 22 April 2015, cooling main connection works was undertaken by the Contractor of Contract HK/2009/01 at the concerned location. Total 1 no. of crane lorry and 1 no. of excavator were in operation during the concerned period and the relevant Construction Noise Permit GW-RS0269-15 was confirmed in place. The construction activity conducted under Contract HK/2009/01 during the concerned period was in compliance with the statutory requirement.
43. In view of the potential noise nuisance, a notice to affected parties was issued by the Contractor of Contract HK/2009/01 to the nearby residents including Renaissance Harbour View Hotel on 17 April 2015. Besides, construction works undertaken by other parties at the concerned location was observed at the concerned period.

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-364/2009C and Further Environmental permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/A, FEP-09/364/2009/B, FEP-10/364/2009/B and FEP-11/364/2009/B 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-041/2001).

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 during the period from March 2015 to May 2015.

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. Design and Construction of Central – Wan Chai Bypass and Island Eastern Corridor Link under the Project involves the construction and operation of a trunk road and its road tunnel more than 800m in length between portals that is shown at Figure 2.1.

2.2.2. The study area encompasses existing developments from Central to North Point. The scope of the Central-Wanchai Bypass (CWB) and Island Eastern Corridor Link (IECL) includes:

· A dual three-lane trunk road, approximately 4.5 km in length, and tunnel approximately 3.7 km in length defined from the connection with the existing Rumsey Street Flyover in Central, through to a connection with the existing Island Eastern Corridor to the east of the Causeway Bay Typhoon Shelter (CBTS);

· The Central Interchange near the Rumsey Street Flyover to provide road connections to the Central area;

· Tunnel control buildings and ventilation buildings;

· Slip roads to connect the CWB to the local road system in the Wan Chai North and Causeway Bay area;

· Associated road lighting, road signing, traffic control and surveillance system; and

· Other associated works.

2.2.3. 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 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, all the contracts were commenced and contract no. 04/HY/2006 had been completed. 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
HY/2009/17	Central – Wan Chai Bypass (CWB) at FEHD Whitfield Depot – Advanced piling works.	DP1	5 October 2010 (Completed)
HY/2009/18	Central – Wan Chai Bypass (CWB) – Central Interchange	DP1	21 April 2011
04/HY/2006	Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong Street	DP1	September 2010 (Completed)
HK/2009/01	Wan Chai Development Phase II – Central – Wan Chai Bypass at Hong Kong Convention and Exhibition Centre – Tunnel Works	DP1, DP2	25 August 2011
HK/2009/02	Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan Chai East(CWB Tunnel)	DP1	26 April 2011
HY/2009/15	Central-Wanchai Bypass – Tunnel (Causeway Bay Typhoon Shelter Section)	DP1	13 July 2011
HY/2009/19	Central – Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link	DP1	24 March 2011
HK/2010/06	Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen Wan Line	DP3	22 March 2011 (Completed)
HK/2012/08	Wan Chai Development Phase II- Central-Wan Chai Bypass at Wan Chai West	DP1,DP2, DP3	DP works under EP-364 to be commenced tentatively in late 2013.
HY/2010/08	Central- Wanchai Bypass Tunnel – Tunnel (Slip Road 8)	DP1, DP2, DP3	21 March 2013
HY/2011/08	Central - Wan Chai Bypass (CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning	DP1	8 October 2014

2.3.3. The construction works of Contract no. 04/HY/2006 – Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong Street under FEP-04/364/2009/A was completed, and the FEP was surrendered by the Contractor on 11 February 2011.

2.3.4. Construction of bored pile E3B under HY/2009/17 was confirmed completed and the respective work area under FEP-03/364/2009 was handover and inspected under HY/2009/19 from 19 Dec 2012 onwards. Subsequently, the FEP-03/364/2009 was surrendered by the Contractor on 28 March 2013.

2.3.5. Construction works under HK/2010/06 was confirmed completed and the respective work area under FEP-08/364/2009/A was handover and inspected under HK/2012/08 from 22 Sep 2014 onwards. Subsequently, the FEP-08/364/2009/A was surrendered by the Contractor on 3 October 2014.

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’s Representative for WDII	Principal Resident Engineer	Mr. Frankie Fan	2587 1778	2587 1877
	Engineer’s Representative for CWB	Principal Resident Engineer	Mr. Peter Poon	3916 1818	3529 2829
Chun Wo – Leader Joint Venture	Contractor under Contract no. HK/2009/01	Site Agent	Mr. Simon Liu	2162 9909	2634 1626
		Deputy Site Agent	Mr. Andy Yu	9648 4896
		Construction Manager	Mr. Wyman Wong	9627 2467
		Construction Manager	Mr. Jack Chu	9775 2467
		Environmental Officer	Mr. Wendy Ng	9803 0057
		Environmental Supervisor	Mr. Connie Chan	2162 9935
Chun Wo – CRGL Joint Venture	Contractor under Contract no. HK/2009/02	Site Agent	Mr. K.K. Yuen	3658-3002	2827 9996
		Project Manager	Mr. Alfred Leung	3658-3022
		Quality & Environmental Manager (Environmental Officer)	Mr. C.P. Ho	3658-3000
Chun Wo - CRGL - MBEC Joint Venture	Contractor under Contract no. HY/2009/19	Project Manager	Mr. David Lau	3758 8879	2570 8013
		Site Agent	Mr. Paul Yu	9456 9819
		Environmental Officer	Mr. M.H. Isa	9884 0810
		Environmental Engineer	Calvin Leung	9286 9208
		Construction Manager (Marine)	William Luk	9610 1101
		Construction Manager (Land)	Patrick Cheung	9643 3012
		Construction Manager (Land)	Eric Fong	6191 9337
		Operation Manager (Land)	Yung Kwok Wah	9834 1010
Leighton Contractors (Asia) Limited	Contractor under Contract no. HY/2009/18	Site Agent	Mr. Jimmy Chu	2214 7700	2140 6799
		Deputy Site Agent	Mr Roger Wong	2214 7703
		Environmental Officer	Ms. Lighting Chan	2823 1161
		Environmental Engineer	Mr. Chris Chan	2214 7721
		Assistant Environmental Engineer	Mr. Penny Yiu	2214 7738
		Environmental Supervisor	K. P. Lai	6461 4660
		Environmental Supervisor	Ray Cheng	22147742
		Environmental Supervisor	Bosco Lee	22147711
		Environmental Supervisor	Ryan Tsui	2214 7705
China State Construction Engineering (HK) Ltd.	Contractor under Contract no. HY/2009/15	Project Director	Mr. K C Cheung	2823 7813	2566 2192
		Site Manager	Mr. Y.Huo	3557 6368
		Contractor’s Representative	Mr. Gene Cheung	3557 6395
		Head of construction	Mr. Roger Cheung	3557 6371
		Environmental Officer	Mr. Andy Mak	3557 6215
		Environmental Supervisor	Ms Esther Choi	35576348
China State- Leader JV	Contractor under Contract no. HK/2012/08	Project Director	Mr. C.N. Lai	9137 1811	2877 1522
		Project Manager	Mr. Eddie Chung	9193 8871
		Site Agent	Mr. Keith Tse	9095 7922
		Environmental Officer	Mr. James MA	9130 9549
		Environmental Supervisor	Mr. Y.L. Ho	6050 4919
China State	Contractor under Contract no.HY/2010/08	Project Director	Cheung Kit Cheung	3557 6399	3465 2899
		Project Manager	Chan Ying Lun	9812 0592
		Deputy Project Manager	Chris Leung	3467 4299
		Site Agent	Dave Chan	3467 4277
		Environmental Officer	C.M. Wong	3557 6464
		Environmental Supervisor	Louis Lam Tsz Kwan	3557 6470
Leighton Joint Venture	Contractor under Contract no. HY/2011/08	Project Manager	Paul Evans	2823 1111	21406799
		Site Agent	Colman Wong	9730 0806
		Environmental Officer	Chris Chan	9765 6151
		Environmental Supervisor	Penny Yiu	2214 7738
Lam Geotechnics Limited	Environmental Team (ET)	Environmental Team Leader (ETL)	Mr. Raymond Dai	2882 3939	2882 3331
ENVIRON Hong Kong Limited	Independent Environmental Checker (IEC)	Independent Environmental Checker (IEC)	Mr. David Yeung	3465 2888	3465 2899

2.5 Principal Work and Activities

2.5.1. Major construction activities for Contract no. HY/2009/18 have been commenced on 21 April 2011. During this reporting period, the principal work activities for Contract no. HY/2009/18 are summarized in Table2.4:

Table 2.4 Principal Work Activities for Contract no. HY/2009/18

March 2015	April 2015	May 2015
Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and waterproofing and backfill Ÿ Road works Ÿ Bridges construction	Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and Ÿ waterproofing and backfill Ÿ Road works Ÿ Bridges construction	Ÿ Planting trees and shrubs Ÿ Transplanting of trees Ÿ Drainage works Ÿ Trough structure construction including excavation, concreting and Ÿ waterproofing and backfill Ÿ Road works Ÿ Bridges construction

2.5.2. Major construction activities for Contract no. HK/2009/01 have been commenced on 25 August 2011. During this reporting period, the principal work activities are summarized in Table2.5:

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

March 2015	April 2015	May 2015
Ÿ Stage 1 Construction of roadside barrier Ÿ Stage 1 Demolition of temporary upstand Ÿ Stage 1 Construction of retaining wall RW1 at slip road 2 Ÿ Stage 2 ELS works Ÿ Stage 2 Removal of 2nd layer of strut/waling at Bay 7 Ÿ Stage 2 Steel fixing and formwork erection at Bay 7, 8 and 9 Ÿ Stage 2 Rebar fixing of exhaust duct Ÿ Stage 3 ELS excavation and strut installing works Ÿ Stage 3 Construction of box culvert Bay 2 (base slab) and S5A and 5B salt water-main connection Ÿ Stage 3 Construction of box culvert Bay 3 to 6 Ÿ Trench excavation works at A3-5B for sewage pipeline at Fenwick Pier Street Ÿ Cooling Main Installation (BI/BG/BF) at Expo Drive East Outfall and BF at Fleming Road Ÿ Installation works for Cooling Main (BF)/ Salt Watermain (S3) / Fresh Watermain (F3) Ÿ Work zone X1-1 to X1-3 Ÿ Construction of C3-1 Outfall Ÿ Reinstatement of cable draw pits at Lung King Street was in progress	Ÿ Stage 1 Construction of roadside barrier and defect rectification Ÿ Stage 2 Backfilling of retaining wall RW1 at slip road 2 Ÿ Stage 2 ELS and demolition works of bulkhead wall at Bay 10 Ÿ Stage 2 Steel fixing and formwork erection at Bay 7, 8 and 9 OHVD Ÿ Stage 2 Construction of exhaust duct at slip road 3 Ÿ Stage 3 ELS excavation and strut installing works Ÿ Stage 3 Base slab construction of box culvert Bay 2 and Bay 7 Ÿ Stage 3 Construction of box culvert Bay 1 Ÿ Stage 3 Construction of Outfall at Expo Drive East and backfilling work Ÿ Sewerage pipeline at Fenwick Pier Street Ÿ Pipe laying works for Cooling Main (BI/BG/BF) Ÿ Work zone X1-1 to X1-4 at Fleming Road Ÿ Pipe laying works of C3-1B and backfilling works of C3-1A	Ÿ Stage 1 Construction of roadside barrier was completed and defect rectification Ÿ Stage 2 Construction of exhaust duct Ÿ Stage 2 Construction of base slab Bay 10 Ÿ Stage 3 ELS excavation and strut installing work Ÿ Stage 3 Box culvert diversion Ÿ Stage 3 Base slab construction of box culvert Ÿ Stage 3 Construction works of Outfall at Expo Drive East Ÿ Cooling Main Installation (BI/BG) at Expo Drive East Ÿ Removal of abandoned cooling main (P7/P8) at Convention Avenue Ÿ Sewerage Pipeline A3-4B at Fenwick Pier Street Ÿ Installation works for Cooling Main (BI/BG) / Salt Watermain (S3)/ Fresh Watermain (F3) Ÿ Reinstatement of Expo Drive East

2.5.3. Major construction activities for Contract no. HK/2009/02 have been commenced on 26 April 2011. During this reporting period, the principal work activities are summarized in Table2.6:

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

March 2015	April 2015	May 2015
Ÿ Core hole at -19mPD for bulk head wall demolition and wire cut Ÿ Blinding layer application for base slab Ÿ Waterproofing application for base slab Ÿ Concreting for base slab Ÿ Struts dismantling Ÿ Construction of capping beam at the west side Ÿ Excavation at the west side Ÿ Installation of observation well, dewatering well, piezometer at the east side Ÿ Grouting and shear pin installation for all D-wall panels at the east side Ÿ Packer tests	Ÿ Bulkhead wall breakthrough by Robot at the north side Ÿ Bulkhead wall breakthrough by saw cut and wire cut Ÿ Waterproofing application for north and south walls Ÿ Rebar fixing at the north wall from Bay 1 to Bay 4 Ÿ Rebar fixing at the south wall of Bay 3 and Bay 4 Ÿ Formworks erection was now in progress at central wall of Bay 4, at south wall and north wall of Bay 1 Ÿ Concrete cast for central wall at Bay 1, Bay 2 and Bay 3 Ÿ Excavation at the west side and struts installation. Ÿ Packer tests at the east side Ÿ Excavation at the east side and welding for struts installation Ÿ Installation of observation well, dewatering well, piezometer at the east side Ÿ Pump test set up and schedule for pump test	Ÿ Removal of scaffolding and clearance works Ÿ Bulkhead wall breakthrough by Robot at -12.9mPD upper part Ÿ Dismantling of temporary working platform Ÿ Preparation for breakthrough the lower part by Robot Ÿ Concrete cast for central wall at Bay 4 Ÿ Concrete cast for south side wall at Bay 1, Bay 2, Bay 3 and Bay 4 Ÿ Concrete cast for north side wall at Bay 1, Bay 2, Bay 3 and Bay 4 Ÿ Concrete cast for OHVD base slab at Bay 1 Ÿ Rebar fixing and formworks erection for OHVD side wall at Bay 1 Ÿ Pump test Ÿ Excavation at Strut Layer S2 of the west side Ÿ Excavation at Strut Layer S2 of the east side

2.5.4. Major construction activities for Contract no. HY/2009/15 have been commenced on 13 July 2011. During this reporting period, the principal work activities are summarized in Table 2.7:

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

March 2015	April 2015	May 2015
Ÿ Mined Tunnel drill-and-break works at East and West Portal Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW	Ÿ Mined Tunnel drill-and-break works at East and West Portal Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW Ÿ Fabrication of first layer of ELS for TPCWAW	Ÿ Construction of OHVD and base slab at Mined Tunnel Ÿ Inner bench excavation Ÿ Permanent lining structure at Mined Tunnel Ÿ Construction of diaphragm wall at TPCWAW Ÿ Installation of king post Ÿ Fabrication of first layer of ELS for TPCWAW Ÿ Excavation of ELS at TPCWAW

2.5.5. Major construction activities for Contract no. HY/2009/19 have been commenced on March 2011. During this reporting period, the principal work activities are summarized in Table 2.8:

Table 2.8 Principal Work Activities for Contract no. HY/2009/19

March 2015	April 2015	May 2015
Ÿ Bored piling (Land) Ÿ Demolition of ELS for Cut &Cover Tunnel and EVB Ÿ Laying of 1350f pipe Ÿ Pre-bored H-pile for Admin. Building continue Ÿ Construction of Bridge E Ÿ Installation of Noise Barrier/enclosure Ÿ IECL Road modification and removal of Median Barrier Ÿ Construction of TB Bridge Ÿ Abutment D12 construction Ÿ Saw cut of parapet at IEC East bound Ÿ Construction for TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ JBI Gantry Installation	Ÿ Demolition of ELS for Cut &Cover Tunnel and EVB Ÿ Pre-bored H-pile for Approach Ramp Ÿ IECL Road modification and removal of Median Barrier Ÿ Abutment D12 construction Ÿ Saw cut of parapet at IEC East bound Ÿ Construction of TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ Saw cut of existing west fast lane of IEC bridge Ÿ Demolition of bulk head wall between C15 to C19 Ÿ Column modification at F1 to F8	Ÿ Demolition of ELS for EVB Ÿ Pre-bored H-pile for Pier 23 Ÿ Construction of TA2 bridge Ÿ Construction of temporary steel tower for IEC demolition Ÿ Saw cut of existing west fast lane of IEC bridge Ÿ Demolition of bulk head wall between C15 to C19 Ÿ Column modification at F1 to F8 Ÿ

2.5.6. Major construction activities for Contract no. HK/2012/08 have been commenced on March 2013. During the reporting period, the principal work activities are summarized in Table 2.10

Table 2.9 Principal Work Activities for Contract no. HK/2012/08

March 2015	April 2015	May 2015
Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Construction of ELS at Zone A1	Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Excavation and installation of lateral support at top-down area Ÿ Pre-bored H-pile construction	Ÿ Diaphragm wall construction Ÿ Installation of dewatering wells Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Construction of top-down slab Ÿ Pre-bored H-pile construction

2.5.7. Major construction activities for Contract no.HY/2010/08 have been commenced on March 2013. During the reporting period, the principal work activities are summarized in Table 2.11

Table 2.10 Principal Work Activities for Contract no. HY/2010/08

March 2015	April 2015	May 2015
Ÿ Tree transplanting works next to W1, Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Construction of Bowling Green Office & Ÿ Construction of ramp for TTA stage II – eastbound	Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Provisional of Bowling Green, Ÿ Milling & paving works for TTA stage II – westbound &. Ÿ Construction of ramp for TTA stage II – eastbound	Ÿ Tree protection works next to existing BGO Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for U-structure works, Ÿ Erection of noise absorption sheetings, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Waterproofing works, Ÿ Renovation works for Bowling Green Office, Ÿ Reprovisional of Bowling Green & Ÿ Demolition of an existing bowling green office

2.5.8. Contract no. HY/2011/08 –Central - Wan Chai Bypass (CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning under FEP-11/364/2009B

Table 2.11 Principal Work Activities for Contract no. HY/2011/08

March 2015	April 2015	May 2015
Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Site preparation for East Vent Shaft	Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Construct reinforcement concrete structure for EVS	Ÿ West Ventilation Building structure construction Ÿ Install VE panels bracket and thermal barrier for Tunnel Ÿ Construct reinforcement concrete structure for EVS

2.5.9. 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 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
*M7e	International Finance Centre (Eastern End of Podium)
M7w	International Finance Centre (Western End of Podium)
M8	City Hall

* Remark 1: Location ID has been updated from M7 to M8 for City Hall

* Remark 2: M7e has become a reference station starting from 7 Aug 2012

Real time Noise Monitoring Stations

3.1.2. 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	RTN2a	Electric Centre
North Point	RTN3	Pok Leung Kuk Yu Lee Mo Fan Memorial School
Tin Hau	RTN4	Causeway Bay Community Centre

* RTN2 was relocated from Oil Street Community Liaison Centre to Electric Centre on

05 Oct 2012 and re-designated as RTN2a.

Noise Monitoring Parameters, Frequency and Duration

3.1.3. The construction noise level shall be measured in terms of the A-weighted equivalent continuous sound pressure level (L_eq). L_{eq (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, L_{eq (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.

3.1.4. 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:

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

3.1.5. 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.

3.1.6. 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.

Monitoring Equipment

3.1.7. 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.

3.1.8. 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.

3.1.9. The sound level meter shall be checked using an acoustic calibrator generating a known sound pressure level at a known frequency before deployment to the site and during each site visit. Measurements may be accepted as valid only if the calibration level from before and after the noise measurement agree to within 1.0 dB.

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 Site Office*	North Point
CMA2a