Under Contract No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake Northern Connection Tunnel Buildings, Electrical and Mechanical Works of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the Engineer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A. Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO). Subsequent applications for variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.

The construction phase of the Project commenced on 7 June 2018 and will tentatively be completed by 2021. The impact monitoring of the EM&A programme, including air quality and environmental site inspections, were commenced on 7 June 2018.

This is the Second Monthly EM&A report presenting the EM&A works carried out during the period from 1 to 31 July 2018 for the Contract No. HY/2017/10 Northern Connection Tunnel Buildings, Electrical and Mechanical Works (the “Project”) in accordance with the Updated EM&A Manual of the TM-CLK Link Project. As informed by the Contractor, major activities in the reporting period included:

Land-based Works

· Bar bending and timber formwork at Toll Control Building and Ventilation Plant Room;

· ER’s and the Contractor’s site offices erection at WA18; and

· Additional land ground investigation (GI) at Administration Building, trial pits and laboratory testing.

A summary of monitoring and audit activities conducted in the reporting period is listed below:

24-hour TSP Monitoring 10 sessions

1-hour TSP Monitoring 10 sessions

Joint Environmental Site Inspection 4 sessions

Summary of Breaches of Action/Limit Levels

Breaches of Action and Limit Levels for Air Quality

No exceedance of 1-hour and 24-hour TSP was recorded in this reporting month.

Environmental Complaints, Non-compliance & Summons

There was no environmental complaint, notification of summons or successful prosecution recorded in the reporting period.

Reporting Change

There was no reporting change in the reporting period.

Upcoming Works for the Next Reporting Month

Works to be undertaken in the next monitoring period of August 2018 include the following:

Land-based Works

· Bar bending, timber formwork and concreting at Toll Control Building;

· Architectual, Builder’s Work and Finishing at Ventilation Plant Room;

· ER’s and the Contractor’s site offices erection at WA18; and

· Socket H-pilling at Administration Building.

· Additional land ground investigation (GI) at Maintainence Depot, trial pits and laboratory testing.

Future Key Issues

Potential environmental impacts arising from the above upcoming construction activities in the next reporting month of August 2018 are mainly associated with dust and waste management issues.

1 Introduction

1.1 Background

According to the findings of the Northwest New Territories (NWNT) Traffic and Infrastructure Review conducted by the Transport Department, Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be operating beyond capacity after 2016. This forecast has been based on the estimated increase in cross boundary traffic, developments in the Northwest New Territories (NWNT), and possible developments in North Lantau, including the Airport developments, the Lantau Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.

An Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report (EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009) for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4 November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December 2010. Subsequent applications for variation of environmental permits (VEPs), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.

Under Contract No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the Northern Connection Tunnel Buildings, Electrical and Mechanical Works of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Engineer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET). Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).

The construction phase of the Contract commenced on 7 June 2018 and will be tentatively completed by 2021. The impact monitoring phase of the EM&A programme, including air quality and environmental site inspections, commenced on 7 June 2018.

The general layout plan of the Contract components is presented in Figures 1.1 & 1.2a to c.

1.2 Scope of Report

This is the Second Monthly EM&A Report under the Contract No. HY/2017/10 Tuen Mun – Chek Lap Kok Link – Northern Connection Tunnel Buildings, Electrical and Mechanical Works. This report presents a summary of the environmental monitoring and audit works in July 2018.

1.3 Organization Structure

The organization structure of the Contract is shown in Appendix A. The key personnel contact names and contact details are summarized in Table 1.1 below.

Table 1.1 Contact Information of Key Personnel

Party	Position	Name	Telephone	Fax
HyD (Highways Department)	Project Coordinator	Joseph Lee	2762 4958	3188 6614
	Senior Engineer	Cheng Pan	2762 3383	3188 6614
ER (AECOM Asia Company Limited)	Principle Resident Engineer	S. W. Fok	2293 6200	2293 6300
	Resident Engineer	Desmond Fung	2293 6200	2293 6300
ENPO / IEC (Ramboll Hong Kong Ltd.)	ENPO Leader	Y.H. Hui	3465 2850	3465 2899
ENPO / IEC (Ramboll Hong Kong Ltd.)	IEC	Dr. F.C. Tsang	3465 2851	3465 2899
Contractor (Gammon Construction Limited)	Site Agent	Kenneth Tai	9039 4723	-
Contractor (Gammon Construction Limited)	Environmental Officer	Max Poon	9103 6303	-

ET (ERM-HK)	ET Leader	Dr. Jasmine Ng	2271 3311	2723 5660

1.4 Summary of Construction Works

The construction phase of the Contract commenced on 7 June 2018. The three-month rolling construction programme is shown in Appendix B.

As informed by the Contractor, details of the major works carried out in this reporting month are listed below:

Land-based Works

· Bar bending and timber formwork at Toll Control Building and Ventilation Plant Room;

· ER’s and the Contractor’s site offices erection at WA18; and

· Additional land ground investigation (GI) at Administration Building, trial pits and laboratory testing.

The locations of the construction activities are shown in Figure 1.3. The Environmental Sensitive Receivers in the vicinity of the Project are shown in Figure 1.4.

The implementation schedule of environmental mitigation measures is presented in Appendix C.

Figure 1.3 Locations of Major Construction Activities in the Reporting Month

2 EM&A Results

The EM&A programme required environmental monitoring for air quality and environmental site inspections for air quality, water quality and waste management. The EM&A requirements and related findings for each component are summarized in the following sections

2.1 Air quality

2.1.1 Monitoring Requirements and Equipment

In accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times every six (6) days and impact 24-hour TSP monitoring was carried out once every six (6) days when the highest dust impact was expected. 1-hr and 24-hr TSP monitoring frequency was increased to three times per day every three days and daily every three days, respectively, as excavation works for launching shaft under Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section commenced on 24 October 2014.

Results of air quality monitoring were adopted from the published EM&A data of Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section ([1]).

The Action and Limit Levels of the air quality monitoring were adopted from the published EM&A reports of Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section ([2]). The Action and Limit Levels are provided in Appendix D.

The locations of the monitoring stations overlapped with Contract No. HY/2012/08 are shown in Figure 2.1 and presented in Table 2.1.

Table 2.1 Locations of Impact Air Quality Monitoring Stations and and its Corresponding Monitoring Requirements

Monitoring Station	Monitoring Dates	Location	Description	Parameters & Frequency
ASR1	3, 6, 9, 12, 15, 18, 21, 24, 27 and 30 July 2018	Tuen Mun Fireboat Station	Office	TSP monitoring Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m³), 3 times in every 6 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m³), daily for 24-hour in every 6 days Enhanced TSP monitoring (commenced on 24 October 2014 under Contract No. HY/2012/08) Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m³), 3 times in every 3 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m³), daily for 24-hour in every 3 days
ASR5		Pillar Point Fire Station	Office
AQMS1		Previous River Trade Golf	Bare ground
ASR6		Butterfly Beach Laundry	Office
ASR10		Butterfly Beach Park	Recreational uses

2.1.2 Results and Observations

Results of air quality monitoring were adopted from the published EM&A data of Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section ([3]).

Neither Action nor Limit Levels exceedances was recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. No action is thus required to be undertaken in accordance with the Event Action Plan presented in Appendix E.

2.2 EM&A Site Inspection

Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. In the reporting month, four (4) site inspections were carried out on 6, 13, 20 and 27 July 2018.

Key observations and recommendations during the site inspections in this reporting period are summarized in Table 2.7.

Table 2.2 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Month

Inspection Date	Observations	Recommendations/ Remarks
6 July 2018	Toll Control Building Ÿ Chemical container was observed not placed in drip tray. Ÿ Good housekeeping should be maintained.	Toll Control Building Ÿ The Contractor was reminded to place chemical container in drip tray. Ÿ The Contractor was reminded to maintain good housekeeping.
13 July 2018	Ventilation Plant Room Ÿ Accumulated general refuse should be cleared.	Ventilation Plant Room Ÿ The Contractor was reminded to clear general refuse.
20 July 2018	Ventilation Plant Room Ÿ General refuse should be cleared.	Ventilation Plant Room Ÿ The Contractor was reminded to clear general refuse.
27 July 2018	Maintenance Depot Ÿ NRMM label should be displayed on piling rig. Toll Control Building Ÿ Stagnant water was observed on the chemical container. Ÿ Silt removal should be carried out at the U-channel.	Maintenance Depot Ÿ The Contractor was reminded to display NRMM label on piling rig. Toll Control Building Ÿ The Contractor was reminded to clear stagnant water on the chemical container. Ÿ The Contractor was reminded to install silt removal system at the U-channel.

Inspection Date

Observations

Recommendations/ Remarks

6 July 2018

Toll Control Building

Ÿ Chemical container was observed not placed in drip tray.

Ÿ Good housekeeping should be maintained.

Toll Control Building

Ÿ The Contractor was reminded to place chemical container in drip tray.

Ÿ The Contractor was reminded to maintain good housekeeping.

13 July 2018

Ventilation Plant Room

Ÿ Accumulated general refuse should be cleared.

Ventilation Plant Room

Ÿ The Contractor was reminded to clear general refuse.

20 July 2018

Ventilation Plant Room

Ÿ General refuse should be cleared.

Ventilation Plant Room

Ÿ The Contractor was reminded to clear general refuse.

27 July 2018

Maintenance Depot

Ÿ NRMM label should be displayed on piling rig.

Toll Control Building

Ÿ Stagnant water was observed on the chemical container.

Ÿ Silt removal should be carried out at the U-channel.

Maintenance Depot

Ÿ The Contractor was reminded to display NRMM label on piling rig.

Toll Control Building

Ÿ The Contractor was reminded to clear stagnant water on the chemical container.

Ÿ The Contractor was reminded to install silt removal system at the U-channel.

The Contractor has rectified all of the observations as identified during environmental site inspections in the reporting month.

2.3 Waste Management Status

The Contractor had submitted application form for registration as chemical waste producer under the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.

Wastes generated during this reporting period included mainly construction wastes (inert and non-inert). Reference has been made to the waste flow table prepared by the Contractor (Appendix F). The quantities of different types of wastes are summarized in Table 2.8.

Table 2.3 Quantities of Different Waste Generated in the Reporting Month

Month/Year	Inert C&D Materials ^(a) (m³)	Inert Construction Waste Re-used (m³)	Non-inert Construction Waste ^(b) (kg)	Imported Fill (m³)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)
Month/Year	Inert C&D Materials ^(a) (m³)	Inert Construction Waste Re-used (m³)	Non-inert Construction Waste ^(b) (kg)		Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)
July 2018	830	0	15,190	0	0		0
	Notes:
	(a) Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill. (b) Non-inert construction wastes include general refuse disposed at landfill. (c) Recyclable materials include metals, paper, cardboard, plastics, timber and others.

The Contractor was advised to properly maintain on site C&D materials and waste collection, sorting and recording system, dispose of C&D materials and wastes at designated ground and maximize reuse/ recycle of C&D materials and wastes. The Contractor was also reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.

For chemical waste containers, the Contractor was reminded to treat properly and store temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

2.4 Environmental Licenses and Permits

The status of environmental licensing and permit is summarized in Table 2.9 below.

License/ Permit	License or Permit No.	Date of Issue	Date of Expiry	License/ Permit Holder	Remarks
Environmental Permit	EP-354/2009/D	13 March 2015	N/A	HyD	Tuen Mun- Chek Lap Kok Link
APCO Construction Dust Notification	433493	14 May 2018	N/A	GCL	For Tuen Mun working area
Construction Waste Billing Account	7030836	15 May 2018	N/A	GCL	N/A
Chemical Waste Producer Registration	5213-422-G2827-01	13 June 2018	N/A	GCL	N/A
WPCO Licence for Buildings at C2 area				GCL	Submitted to EPD (Ref:434511, dated 11 June 2018)
WPCO Licence for Buildings at C3 area				GCL	Submitted to EPD (Ref:435029, dated 26 June 2018)
Construction Noise Permit	GW-RW0262-18	9 July 2018	9 Jan 2019	GCL	For Toll Control Building, Administration Building and WA18

([1]) Published EM&A data for impact water quality monitoring by Contract No. HY/2012/08 are available at: http://www.hzmbenpo.com/

([2]) Published EM&A reports of Contract No. HY/2012/08 are available at: http://www.hzmbenpo.com/

([3]) Published EM&A data for impact water quality monitoring by Contract No. HY/2012/08 are available at: http://www.hzmbenpo.com/