table of Contents

Executive Summary

1 Introduction

1.1 Background

1.2 Scope of Report

1.3 Organization Structure

1.4 Summary of Construction Works

2 EM&A Results

2.1 Air quality

2.2 Water Quality Monitoring

2.3 Dolphin Monitoring

2.4 EM&A Site Inspection

2.5 Waste Management Status

2.6 Environmental Licenses and Permits

2.7 Implementation Status of Environmental Mitigation Measures

2.8 Summary of Exceedances of the Environmental Quality Performance Limit

2.9 Summary of Complaints, Notification of Summons and Successful Prosecutions

3 Future Key Issues

3.1 Construction Activities for the Coming Quarter

3.2 Key Issues for the Coming Quarter

3.3 Monitoring Schedule for the Coming Quarter

4 Conclusions

Appendix A Project Organization

Appendix B Construction Programme

Appendix C Environmental Mitigation And Enhancement Measure Implementation Schedules (EMIS)

Appendix D Action And Limit Levels

Appendix E Monitoring Schedule

Appendix F Air Quality Monitoring Results

Appendix G Impact Dolphin Monitoring

Appendix H Event And Action Plan

Appendix I Cumulative Statistics On Exceedance And Complaint

Appendix J Waste Flow Table

Executive Summary

Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer. 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 Environ 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 1 November 2013 and will tentatively be completed by the end of 2018. The impact monitoring of the EM&A programme, including air quality, water quality, marine ecological monitoring and environmental site inspections, were commenced on 1 November 2013.

This is the Twelfth Quarterly EM&A report presenting the EM&A works carried out during the period from 1 September 2016 to 30 November 2016 for the Contract No. HY/2012/08 Northern Connection Sub-sea Tunnel Section (the “Project”) in accordance with the Updated EM&A Manual of the TM-CLK Link Project. As informed by the Contractor, the major activities in the reporting quarter included:

Land-based Works

· Box Culvert Extension at Works Area – Portion N-A;

· Preparation of Stage 2 Reclamation – Portion N-A;

· Shaft Structure and Backfilling – Portion N-C;

· Construction of Cross Passage Tympanum – TBM tunnel;

· Cross Passage Lining Installation – TBM Tunnel;

· Corbel Construction – TBM Tunnel;

· Excavation of Sub-sea Tunnel – TBM tunnel;

· Sub-sea Tunnel Gallery Installation – TBM tunnel;

· Deep Band Drain Installation – Portion S-A;

· Dewatering Deep Well Installation – Portion S-A; and

· Jet Grouting, CSM Ground Treatment and Diaphragm Wall Construction – Portion S-A.

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

24-hour TSP Monitoring 29 sessions

1-hour TSP Monitoring 29 sessions

Impact Dolphin Monitoring 6 sessions

Joint Environmental Site Inspection 13 sessions

Implementation of Marine Mammal Exclusion Zone

There was no dredging, reclamation or marine sheet piling works in open waters during this reporting period.  Thus, Passive Acoustic Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by dolphin observers were not in effect during the reporting period.

Summary of Breaches of Action/Limit Levels

Breaches of Action and Limit Levels for Air Quality

No exceedances were recorded from the air quality monitoring in this reporting period.

Dolphin Monitoring

Whilst one (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between September and November 2016, no unacceptable impact from the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was noticeable from general observations during the dolphin monitoring in this reporting quarter.

Environmental Complaints, Non-compliance & Summons

No non-compliance with EIA recommendations, EP conditions and other requirements associated with the construction of this Contract was recorded in this reporting period.

Two environmental complaints regarding whitish effluent discharge at the sea near cell 54-55 of the artificial island of HKBCF and suspected illegal wastewater discharge at Northern Landfall were received from ENPO on 22 September 2016 and from EPD on 28 November 2016 respectively. Upon investigation, the complaints were considered related to this Project.

No notification of summons or successful prosecution recorded in the reporting period.

Reporting Change

There was no reporting change required in the reporting period.

Upcoming Works for the Next Reporting Period

Works to be undertaken in the coming quarterly period include the following:

Marine-based Works

Ÿ Dredging at Portion N-A; and

Ÿ Construction of Vertical Seawall at Portions N-A.

Land-based Works

· Box Culvert Extension at Works Area – Portion N-A;

· Shaft Structure and Backfilling – Portion N-C;

· Construction of Cross Passage Tympanum – TBM tunnel;

· Cross Passage Lining Installation – TBM Tunnel;

· Corbel Construction – TBM Tunnel;

· Excavation of Sub-sea Tunnel – TBM tunnel;

· Sub-sea Tunnel Gallery Installation – TBM tunnel;

· Jet Grouting, CSM Ground Treatment and Diaphragm Wall Construction – Portion S-A

Future Key Issues

As informed by the Contractor, Phase I Reclamation works for the Northern Landfall was substantially completed in December 2014, a proposal letter was sent to EPD on 21 May 2015 to seek approval for the temporary suspension of Water Quality Monitoring. Subsequently, a letter from EPD on 5 June 2015 stated that they have no strong objection to the temporary suspension of the water quality monitoring. Water Quality Monitoring was suspended from 6 June 2015 effectively and will resume when Phase II Reclamation commences in the fourth quarter of 2016 tentatively.

Potential environmental impacts arising from the above upcoming construction activities in the coming quarterly period are expected to be mainly associated with dust, marine ecology 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-354/2009A) was issued on 8 December 2010. 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.

Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer. 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 Environ Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).

Layout of the Contract components is presented in Figure 1.1.

The construction phase of the Contract commenced on 1 November 2013 and will tentatively be completed by 2018. The impact monitoring phase of the EM&A programme, including air quality, water quality, marine ecological monitoring and environmental site inspections, were commenced on 1 November 2013.

1.2 Scope of Report

This is the Twelfth Quarterly EM&A Report under the Contract No. HY/2012/08 Tuen Mun – Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section. This report presents a summary of the environmental monitoring and audit works from 1 September 2016 to 30 November 2016.

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
Highways Department	Engr 16/HZMB	Kenneth Lee	2762 4996	3188 6614
SOR (AECOM Asia Company Limited)	Chief Resident Engineer	Edwin Ching Andrew Westmoreland	2293 6388 2293 6360	2293 6300 2293 6300
ENPO / IEC (Ramboll Environ Hong Kong Ltd.)	ENPO Leader	Y.H. Hui	3465 2850	3465 2899
	IEC	Dr. F.C. Tsang	3465 2851	3465 2899
Contractor (Dragages – Bouygues Joint Venture)	Environmental Manager	C.F. Kwong	2293 7322	2293 7499
	Environmental Officer	Bryan Lee	2293 7323	2293 7499
	Environmental Officer	David Ho	6628 8684	2293 7499
	24-hour complaint hotline	Rachel Lam	2293 7330
ET (ERM-HK)	ET Leader	Jovy Tam	2271 3113	2723 5660

1.4 Summary of Construction Works

The construction phase of this Contract was commenced on 1 November 2013. The construction programme is shown in Appendix B.

As per DBJV’s information, details of major construction works carried out in this reporting period are summarized in Table 1.2.

The general layout plan of the site showing the detailed works areas is shown in Figure 1.2. The Environmental Sensitive Receivers in the vicinity of the Project are shown in Figure 1.3.

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

Table 1.2 Summary of Construction Activities Undertaken during the Reporting Period

Construction Activities Undertaken

Land-based Works

· Box Culvert Extension at Works Area – Portion N-A;

· Preparation of Stage 2 Reclamation – Portion N-A;

· Shaft Structure and Backfilling – Portion N-C;

· Construction of Cross Passage Tympanum – TBM tunnel;

· Cross Passage Lining Installation – TBM Tunnel;

· Corbel Construction – TBM Tunnel;

· Excavation of Sub-sea Tunnel – TBM tunnel;

· Sub-sea Tunnel Gallery Installation – TBM tunnel;

· Deep Band Drain Installation – Portion S-A;

· Dewatering Deep Well Installation – Portion S-A; and

· Jet Grouting, CSM Ground Treatment and Diaphragm Wall Construction – Portion S-A.

Figure 1.2 Locations of Construction Activities – September 2016 to November 2016

Contract no. HY/2013/12, Toll Plaza at Tuen Mun Area 46

2 EM&A Results

The EM&A programme required environmental monitoring for air quality, water quality and marine ecology as well as environmental site inspections for air quality, noise, water quality, waste management, marine ecology and landscape and visual impacts. The EM&A requirements and related findings for each component are summarized in the following sections

2.1 Air quality

As per the requirements under Condition 2.4 of EP-354/2009/D, the Enhanced TSP Monitoring Plan has been prepared under Contract No. HY/2012/08. Details of the monitoring plan are presented in the Enhanced TSP Monitoring Plan ⁽[1]⁾.

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 in every six (6) days and impact 24-hour TSP monitoring was carried out once in 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 commenced on 24 October 2014.

High volume samplers (HVSs) were used to carry out the 1-hour and 24-hour TSP monitoring in the reporting quarter at the five (5) air quality monitoring stations in accordance with the requirements stipulated in the Updated EM&A Manual (Figure 2.1; Table 2.1). Wind anemometer was installed at the rooftop of ASR5 for logging wind speed and wind direction. Details of the equipment deployed are provided in Table 2.2.
Table 2.1 Locations of Impact Air Quality Monitoring Stations and Monitoring Dates in this Reporting Period

Monitoring Station	Location	Description	Parameters & Frequency	Monitoring Dates
ASR1	Tuen Mun Fireboat Station	Office	TSP monitoring Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m^3), 3 times in every 6 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m^3), daily for 24-hour in every 6 days Enhanced TSP monitoring (commenced on 24 October 2014) Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m^3), 3 times in every 3 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m^3), daily for 24-hour in every 3 days	2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 September 2016; 2, 5, 8, 11, 14, 17, 23, 26 and 29 October 2016; and 1, 4, 7, 10, 13, 16, 19, 22, 25 and 28 November 2016
ASR5	Pillar Point Fire Station	Office
AQMS1	Previous River Trade Golf	Bare ground
ASR6	Butterfly Beach Laundry	Office
ASR10	Butterfly Beach Park	Recreational uses

Table 2.2 Air Quality Monitoring Equipment

Equipment	Brand and Model
High Volume Sampler (1-hour TSP and 24-hour TSP)	Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170)
Wind Meter	Davis (Model: Vantage Pro 2 (S/N: AS160104014)
Wind Anemometer for calibration	Lutron (Model No. AM-4201)

2.1.2 Action & Limit Levels

The Action and Limit Levels of the air quality monitoring is provided in Appendix D. The Event and Action plan is presented in Appendix H.

2.1.3 Monitoring Schedule for the Reporting Quarter

The schedules for air quality monitoring in the reporting quarter are provided in Appendix E.

2.1.4 Results and Observations

Impact air quality monitoring was conducted at all designated monitoring stations in the reporting period under favourable weather conditions. The major dust sources in the reporting period include construction activities under the Contract as well as nearby traffic emissions.

The monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4, respectively. Monitoring results are presented graphically in Appendix F and detailed impact air quality monitoring data were reported in the Thirty-fifth to Thirty-seventh Monthly EM&A Report.

Table 2.3 Summary of 1-hour TSP Monitoring Results in this Reporting Period

Month/Year	Station	Average (µg/m^3)	Range (µg/m^3)	Action Level (µg/m^3)	Limit Level (µg/m^3)
September 2016 to November 2016	ASR 1	116	39 - 243	331	500
	ASR 5	116	41 - 236	340	500
	AQMS1	80	34 - 196	335	500
	ASR6	101	41 - 238	338	500
	ASR10	75	39 - 145	337	500

Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting Period

Month/Year	Station	Average (µg/m^3)	Range (µg/m^3)	Action Level (µg/m^3)	Limit Level (µg/m^3)
September 2016 to November 2016	ASR 1	75	42 - 110	213	260
	ASR 5	68	41 - 97	238	260
	AQMS1	57	38 - 91	213	260
	ASR6	64	44 - 93	238	260
	ASR10	59	44 - 108	214	260

No Action or Limit Level exceedances for 1-hr TSP were recorded. No Action or Limit Level exceedances for 24-hr TSP were recorded. Summary of Exceedances for Air Quality Impact Monitoring in this Reporting Quarter is detailed in Table 2.13.

2.2 Water Quality Monitoring

As informed by the Contractor, Phase I Reclamation works for the Northern Landfall was substantially completed in December 2014, a proposal letter was sent to EPD on 21 May 2015 to seek approval for the temporary suspension of Water Quality Monitoring. Subsequently, a letter from EPD on 5 June 2015 stated that they have no strong objection to the temporary suspension of the water quality monitoring. Water Quality Monitoring was suspended from 6 June 2015 effectively and will resume when Phase II Reclamation commences in the fourth quarter of 2016 tentatively.

2.3 Dolphin Monitoring

2.3.1 Monitoring Requirements

Impact dolphin monitoring is required to be conducted by a qualified dolphin specialist team to evaluate whether there have been any effects on the dolphins. In order to fulfil the EM&A requirements and make good use of available resources, the on-going impact line transect dolphin monitoring data collected by HyD’s Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge. Hong Kong Link Road - Section between Scenic Hill and Hong Kong Boundary Crossing Facilities on the monthly basis is adopted to avoid duplicates of survey effort.

2.3.2 Monitoring Equipment

Table 2.5 summarizes the equipment used for the impact dolphin monitoring.

Table 2.5 Dolphin Monitoring Equipment

Equipment	Model
Global Positioning System (GPS) Camera Laser Binoculars Marine Binocular Vessel for Monitoring	Garmin 18X-PC Geo One Phottix Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens Infinitor LRF 1000 Bushell 7 x 50 marine binocular with compass and reticules 65 foot single engine motor vessel with viewing platform 4.5m above water level

2.3.3 Monitoring Parameter, Frequencies & Duration

Dolphin monitoring should cover all transect lines in Northeast Lantau (NEL) and the Northwest Lantau (NWL) survey areas twice per month throughout the entire construction period. The monitoring data should be compatible with, and should be made available for, long-term studies of small cetacean ecology in Hong Kong. In order to provide a suitable long-term dataset for comparison, identical methodology and line transects employed in baseline dolphin monitoring was followed in the impact dolphin monitoring.

2.3.4 Monitoring Location

The impact dolphin monitoring was carried out in the NEL and NWL along the line transect as depicted in Figure 2.2. The co-ordinates of all transect lines are shown in Table 2.6 below.

Table 2.6 Impact Dolphin Monitoring Line Transect Co-ordinates

Line No.		Easting	Northing	Line No.		Easting	Northing
1	Start Point	804671	815456	13	Start Point	816506	819480
1	End Point	804671	831404	13	End Point	816506	824859
2	Start Point	805475	815913	14	Start Point	817537	820220
2	End Point	805477	826654	14	End Point	817537	824613
3	Start Point	806464	819435	15	Start Point	818568	820735
3	End Point	806464	822911	15	End Point	818568	824433
4	Start Point	807518	819771	16	Start Point	819532	821420
4	End Point	807518	829230	16	End Point	819532	824209
5	Start Point	808504	820220	17	Start Point	820451	822125
5	End Point	808504	828602	17	End Point	820451	823671
6	Start Point	809490	820466	18	Start Point	821504	822371
6	End Point	809490	825352	18	End Point	821504	823761
7	Start Point	810499	820880	19	Start Point	822513	823268
7	End Point	810499	824613	19	End Point	822513	824321
8	Start Point	811508	821123	20	Start Point	823477	823402
8	End Point	811508	824254	20	End Point	823477	824613
9	Start Point	812516	821303	21	Start Point	805476	827081
9	End Point	812516	824254	21	End Point	805476	830562
10	Start Point	813525	820872	22	Start Point	806464	824033
10	End Point	813525	824657	22	End Point	806464	829598
11	Start Point	814556	818853	23	Start Point	814559	821739
11	End Point	814556	820992	23	End Point	814559	824768
12	Start Point	815542	818807
12	End Point	815542	824882

2.3.5 Action & Limit Levels

The Action and Limit levels of dolphin impact monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix H.

2.3.6 Monitoring Schedule for the Reporting Period

The dolphin monitoring schedules for the reporting period are shown in Appendix E.

2.3.7 Results & Observations

A total of 892.57 km of survey effort was conducted, with 96.5% of the total survey effort being conducted under favourable weather conditions (ie Beaufort Sea State 3 or below with good visibility) in this reporting quarter. Amongst the two areas, 341.30 km and 551.27 km of survey effort were conducted from NEL and NWL survey areas, respectively. The total survey effort conducted on primary and secondary lines were 640.35 km and 252.22 km, respectively. The survey efforts are summarized in Appendix G.

A total of 13 groups of 48 Chinese White Dolphins sightings were recorded during the six sets of surveys in this reporting quarter. All dolphin sightings were made during on-effort search, and all except one on-effort dolphin sightings were made on primary lines. During this reporting quarter, all dolphin groups were sighted in NWL, while no dolphin was sighted in NEL.

Encounter rates of Chinese White Dolphins are deduced from the survey effort and on-effort sighting data made under favourable conditions (Beaufort 3 or below with good visibility) in the reporting quarter with the results and comparison with baseline results present in Tables 2.7 and 2.8.

Table 2.7 Individual Survey Event Encounter Rates

		Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort)	Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort)
		Primary Lines Only	Primary Lines Only
NEL	Set 1: Sep 13^th/14^th	0.00	0.00
	Set 2: Sep 21^st/23^rd	0.00	0.00
	Set 3: Oct 4^th/7^th	0.00	0.00
	Set 4: Oct 11^th/13^th	0.00	0.00
	Set 5: Nov 2^nd/7^th	0.00	0.00
	Set 6: Nov 18^th/22^nd	0.00	0.00
NWL	Set 1: Sep 13^th/14^th	0.00	0.00
	Set 2: Sep 21^st/23^rd	5.75	30.17
	Set 3: Oct 4^th/7^th	4.13	9.64
	Set 4: Oct 11^th/13^th	2.85	8.54
	Set 5: Nov 2^nd/7^th	1.66	1.66
	Set 6: Nov 18^th/22^nd	2.79	15.34

Note: Dolphin Encounter Rates are deduced from the Two Sets of Surveys (Two Surveys in Each Set) in the reporting quarter in Northeast (NEL) and Northwest Lantau (NWL)

Table 2.8 Quarterly Average Encounter Rates

	Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort)		Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort)
	September – November 2016	September – November 2011	September – November 2016	September – November 2011
Northeast Lantau	0.0	6.00 ± 5.05	0.0	22.19 ± 26.81
Northwest Lantau	2.86 ± 1.98	9.85 ± 5.85	10.89 ± 10.98	44.66 ± 29.85

Note: Encounter rates deduced from the baseline monitoring period have been recalculated based only on survey effort and on-effort sighting data made along the primary transect lines under favourable conditions.

Table d 4.6

nd limit levels of dolphin impact monitoring are shown in Table

Group size of Chinese White Dolphins ranged from 1 - 11 individuals per group in North Lantau region during September to November 2016. The average dolphin group sizes from these three months were compared with the ones deduced from the baseline period in September to November 2011, as shown in Table 2.9.

Table 2.9 Average Dolphin Group Size

	Average Dolphin Group Size
	September – November 2016	September – November 2011
Overall	3.69 ± 2.87 (n = 13)	3.72 ± 3.13 (n = 66)
Northeast Lantau	---	3.18 ± 2.16 (n = 17)
Northwest Lantau	3.69 ± 2.87 (n = 13)	3.92 ± 3.40 (n = 49)

Whilst one limit level exceedance was observed for the quarterly dolphin monitoring data between September and November 2016, no unacceptable impact from the construction activities of this Contract was recorded from the general observations.

Although the dolphins infrequently occurred along the alignment of TM-CLKL Northern Connection Sub-Sea Tunnel Section in the past and during the baseline monitoring period, it is apparent that dolphin usage has been significantly reduced in NEL.

It is critical to monitor the dolphin usage in North Lantau region in the upcoming quarters to determine whether the dolphins are continuously affected by the various construction activities in relation to the HZMB-related works, and whether suitable mitigation measure can be applied to revert the situation.

2.3.8 Implementation of Marine Mammal Exclusion Zone

There was no dredging, reclamation or marine sheet piling works in open waters during this reporting period. Thus, Passive Acoustic Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by dolphin observers were not in effect during the reporting period.

2.4 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. Thirteen (13) site inspections were carried out in the reporting quarter on 7, 14, 21 and 28 September 2016; 5, 12, 19 and 26 October 2016; 2, 9, 16, 23 and 30 November 2016.

Key observations during the site inspections in this reporting period are summarized in Table 2.10.

Table 2.10 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Period

Inspection Date	Environmental Observations		Recommendations/ Remarks
7 September 2016	Works Area – Portion N-B Ÿ Muddy substances in the surface channel should be removed. Works Area – Portion N-A Ÿ Accumulated rubbish should be removed.	Works Area – Portion N-B Ÿ The Contractor was reminded to remove the muddy substances in the surface channel. Works Area – Portion N-A Ÿ The Contractor was reminded to remove the accumulated rubbish. Reminder from SOR Works Area - Portion S-B Ÿ NRMM label should be put on the excavator.
14 September 2016	Works Area – TBM tunnel Ÿ Cement bags should be fully covered. Ÿ Cement mixing machine should be coverd by three sides. Ÿ Chemical containers should be properly labelled and provided with drip trays.	Works Area – TBM tunnel Ÿ The Contractor was reminded to cover the cement bags. Ÿ The Contractor was reminded to cover the cement mixing machine. Ÿ The Contractor was reminded to label the chemical containers and provide with drip trays. Reminder Works Area - Portion S-B Ÿ The Contractor was reminded to provide NRMM label to the machine.
21 September 2016	Works Area – Portion S-C Ÿ Drip trays should be provided to the chemical containers. Ÿ Accumulated general refuse should be cleared..	Works Area – Portion S-C Ÿ The Contractor was reminded to provide drip trays to the chemical containers. Ÿ The Contractor was reminded to clear the accumulated general refuse.
28 September 2016	Works Area – Portion N-A Ÿ Accumulated waste in the skip should be cleared. Works Area – Portion N-C Ÿ Water spraying should be applied more frequently during dry conditions. Ÿ Water spraying should be applied during rock breaking. Works Area - Portion S-B Ÿ Drip tray should be provided to the chemical drums.	Works Area – Portion N-A Ÿ Accumulated waste in the skip should be cleared. Works Area – Portion N-C Ÿ Water spraying should be applied more frequently during dry conditions. Ÿ Water spraying should be applied during rock breaking. Works Area - Portion S-B Ÿ Drip tray should be provided to the chemical drums. Reminder from SOR Works Area – Portion S-B Ÿ NRMM label should be provided to the excavator
5 October 2016	Works Area - TBM Tunnel Ÿ The grouting devices should be enclosed with tarpaulin sheets at the 3 sides and the top. Ÿ Drip tray and labels should be provided to the oil drums. Works Area - Portion S-C Ÿ Drip tray should be provided to the oil drums. Ÿ Accumulated waste should be removed.	Works Area - TBM Tunnel Ÿ The Contractor was reminded to enclose the grouting devices with tarpaulin sheets at the 3 sides and the top. Ÿ The Contractor was reminded to provide drip tray and labels to the oil drums. Works Area - Portion S-C Ÿ The Contractor was reminded to provide drip tray to the chemical drums. Ÿ The Contractor was reminded to remove the accumulated waste.
12 October 2016	Works Area - Portion N-B Ÿ The dust cover of the sewage treatment plant should be closed to avoid dust dispersal. Ÿ The discharged water should be properly directed to the drainage system. Ÿ Stagnant water should be removed from the drainage. Ÿ Muddy substance and stagnant water should be removed from the drainage. Works Area - Portion N-A Ÿ Muddy substance and rubbish should be removed. Works Area - Portion S-C Ÿ Accumulated waste should be removed.	Works Area - Portion N-B Ÿ The Contractor was reminded to close the dust cover of the sewage treatment plant to avoid dust dispersal. Ÿ The Contractor was reminded to properly direct the discharged water to the drainage system. Ÿ The Contractor was reminded to remove the stagnant water from the drainage. Ÿ The Contractor was reminded to remove the muddy substance and stagnant water from the drainage. Works Area - Portion N-A Ÿ The Contractor was reminded to remove the muddy substance and rubbish. Works Area - Portion S-C Ÿ The Contractor was reminded to remove the accumulated waste.
19 October 2016	Works Area –TBM Tunnel Ÿ Drip tray should be provided to the chemical drums. Ÿ Cement bags should be covered by tarpaulin sheet. Reminder from SOR Works Area - Portion S-A Ÿ Noise mitigation measures should be implemented during rock-breaking process.	Works Area –TBM Tunnel Ÿ The Contractor was reminded to provide drip tray to the chemical drums. Ÿ The Contractor was reminded to cover the cement bags by tarpaulin sheet. Reminder from SOR Works Area - Portion S-A Ÿ Noise mitigation measures should be implemented during rock-breaking process.
26 October 2016	Works Area – Portion N-A Ÿ Unwanted containers should be removed. Works Area – Portion S-B Ÿ Grouting facility should be enclosed with tarpaulin sheets at the 3 sides and the top.	Works Area – Portion N-A Ÿ The Contractor was reminded to remove the unwanted containers. Works Area – Portion S-B Ÿ The Contractor was reminded to enclose the grouting facility with tarpaulin sheets at the 3 sides and the top.
2 November 2016	Works Area - TBM Tunnel Ÿ Cement bags should be covered by tarpaulin sheets to avoid dust impacts. Ÿ Drip tray should be provided to the oil drums. Works Area - Portion S-B Ÿ Drip tray should be provided to the oil drums. Ÿ Accumulated waste in the skip should be removed. Ÿ Cement bags should be covered by tarpaulin sheets to avoid dust impacts.	Works Area - TBM Tunnel Ÿ The Contractor was reminded to cover the cement bags by tarpaulin sheets to avoid dust impacts. Ÿ The Contractor was reminded to provide drip tray to the oil drums. Works Area - Portion S-B Ÿ The Contractor was reminded to provide drip tray to the oil drums. Ÿ The Contractor was reminded to remove the accumulated waste in the skip. Ÿ The Contractor was reminded to cover the cement bags by tarpaulin sheets to avoid dust impacts.
9 November 2016	Works Area - Ventilation shaft Ÿ Drip tray should be provided to the oil drums. Works Area - Portion S-B Ÿ Drip tray should be provided to the oil drums. Works Area - Portion S-C Ÿ Accumulated waste should be removed from the waste skip.	Works Area - Ventilation shaft Ÿ The Contractor was reminded to provide drip tray to the oil drums. Works Area - Portion S-B Ÿ The Contractor was reminded to provide drip tray to the oil drums. Works Area - Portion S-C Ÿ The Contractor was reminded to remove the accumulated waste from the waste skip.
16 November 2016	Works Area – Portion N-B Ÿ Stagnant water should be removed. Ÿ Drip tray should be provided to the chemicals.	Works Area – Portion N-B Ÿ The Contractor was reminded to remove the stagnant water. Ÿ The Contractor was reminded to provide drip tray to the chemicals.
23 November 2016	Works Area – Portion S-B Ÿ Cement bags should be covered with tarpaulin sheet. Ÿ Drip tray should be provided to the chemicals.	Works Area – Portion S-B Ÿ The Contractor was reminded to cover the cement bags with tarpaulin sheet. Ÿ The Contractor was reminded to provide drip tray to the chemicals.
30 November 2016	Works Area - Portion N-C Ÿ Drip tray should be provided to the chemicals. Works Area - Portion S-B Ÿ Stagnant water in the drip tray should be removed.	Works Area - Portion N-C Ÿ The Contractor was reminded to provide drip tray to the chemicals. Works Area - Portion S-B Ÿ The Contractor was reminded to remove the stagnant water in the drip tray.

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

2.5 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 include mainly construction wastes (inert and non-inert) and recyclable materials. Reference has been made to the waste flow table prepared by the Contractor (Appendix J). The quantities of different types of wastes are summarized in Table 2.11.

Table 2.11 Quantities of Different Waste Generated in the Reporting Period

Month/Year	Inert Construction Waste ^(a) (tonnes)	Imported Fill (tonnes)	Inert Construction Waste Re-used (tonnes)	Non-inert Construction Waste ^(b) (tonnes)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)	Marine Sediment (m^3)
							Category L	Category M
September 2016	9,450	0	0	335	0	0	0	0
October 2016	23,118	0	0	235	0	0	0	0
November 2016	13,293	8083	0	305	0	0	0	700
Total	45,861	8083	0	875	0	0	0	700
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.

2.6 Environmental Licenses and Permits

The status of environmental licensing and permit is summarized in Table 2.12 below.

Table 2.12 Summary of Environmental Licensing and Permit Status

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	Throughout the Contract	HyD	Application for VEP on 3 March 2015 to supersede EP-354/2009/C
Construction Dust Notification Construction Dust Notification	363510 403620	19 August 2013 10 June 2016	Throughout the Contract Throughout the Contract	DBJV DBJV	Northern Landfall Southern Landfall
Chemical Waste Registration Chemical Waste Registration	5213-422-D2516-01 5213-951-D2591-01	10 September 2013 25 May 2016	Throughout the Contract Throughout the Contract	DBJV DBJV	Northern Landfall Southern Landfall
Construction Waste Disposal Account	7018108	28 August 2013	Throughout the Contract	DBJV	Waste disposal in Contract HY/2012/08
Waste Water Discharge License	WT00017707-2013	18 November 2013	30 November 2018	DBJV	For works in site WA18
Waste Water Discharge License	WT00019248-2014	5 June 2014	30 June 2019	DBJV	For site Portion N6 and Reclamation Area
Marine Dumping Permit	EP/MD/17-086	9 September 2016	8 October 2016	DBJV	Southern Landfall
Marine Dumping Permit	EP/MD/17-108	16 November 2016	15 December 2016	DBJV	Southern Landfall
Construction Noise Permit	GW-RW0644-16	30 November 2016	29 May 2017	DBJV	For Urmston Road in front of Pillar Point
Construction Noise Permit	GW-RW0666-16	13 December 2016	12 June 2017	DBJV	For site WA23A+B
Construction Noise Permit	GW-RW0450-16	27 July 2016	19 January 2017	DBJV	For Urmston Road in front of Pillar Point
Construction Noise Permit	GW-RW0334-16	14 June 2016	13 December 2016	DBJV	For site WA23A+B
Construction Noise Permit	GW-RW0533-16	29 September 2016	28 March 2017	DBJV	For Portion N6
Construction Noise Permit	GW-RS0860-16	25 August 2016	24 February 2017	DBJV	For Southern Landfall
Notes:
HyD = Highways Department DBJV = Dragages – Bouygues Joint Venture VEP = Variation of Environmental Permit

2.7 Implementation Status of Environmental Mitigation Measures

In response to the site audit findings, the Contractors carried out all corrective actions.

A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix C. The necessary mitigation measures relevant to this Contract were implemented properly.

2.8 Summary of Exceedances of the Environmental Quality Performance Limit

For air quality impact monitoring, a total of twenty-nine monitoring events were undertaken in which no Action Level or Limit Level exceedances for 1-hr TSP; no Action Level exceedances or Limit Level exceedances for 24-hr TSP were recorded in this reporting quarter (Table 2.13).

Table 2.13 Summary of Exceedances for Air Quality Impact Monitoring in this Reporting Quarter

Station	Exceedance Level	Date of Exceedances		Number of Exceedances
		1-hr TSP	24-hr TSP	1-hr TSP	24-hr TSP
AQMS1	Action Level	-	-	0	0
	Limit Level	-	-	0	0
ASR1	Action Level	-	-	0	0
	Limit Level	-	-	0	0
ASR5	Action Level	-	-	0	0
	Limit Level	-	-	0	0
ASR6	Action Level	-	-	0	0
	Limit Level	-	-	0	0
ASR10	Action Level	-	-	0	0
	Limit Level	-	-	0	0
Total number of Action level Exceedances:				0	0
Total number of Limit level Exceedances:				0	0

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between September and November 2016, whilst no unacceptable impact from the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was noticeable from general observations.

Cumulative statistics are provided in Appendix I.

2.9 Summary of Complaints, Notification of Summons and Successful Prosecutions

The Environmental Complaint Handling Procedure is provided in Figure 2.3.

Two environmental complaints regarding whitish effluent discharge at the sea near cell 54-55 of the artificial island of HKBCF and suspected illegal wastewater discharge at Northern Landfall were received from ENPO on 22 September 2016 and from EPD on 28 November 2016 respectively. Upon investigation, the complaints were considered related to this Project.

No notification of summons or successful prosecution recorded in the reporting period.

Statistics on complaints, notifications of summons and successful prosecutions are summarized in Appendix I.

3 Future Key Issues

3.1 Construction Activities for the Coming Quarter

As informed by the Contractor, the major works for the Project in the coming quarter are summarized in Table 3.1.

Table 3.1 Construction Works to Be Undertaken in the Coming Quarter

Works to be undertaken

Marine-based Works

· Dredging at Portion N-A; and

· Construction of Vertical Seawall at Portions N-A.

Land-based Works

· Box Culvert Extension at Works Area – Portion N-A;

· Shaft Structure and Backfilling – Portion N-C;

· Construction of Cross Passage Tympanum – TBM tunnel;

· Cross Passage Lining Installation – TBM Tunnel;

· Corbel Construction – TBM Tunnel;

· Excavation of Sub-sea Tunnel – TBM tunnel;

· Sub-sea Tunnel Gallery Installation – TBM tunnel;

· Jet Grouting, CSM Ground Treatment and Diaphragm Wall Construction – Portion S-A.

3.2 Key Issues for the Coming Quarter

As informed by the Contractor, Phase I Reclamation works for the Northern Landfall was substantially completed in December 2014, a proposal letter was sent to EPD on 21 May 2015 to seek approval for the temporary suspension of Water Quality Monitoring. Subsequently, a letter from EPD on 5 June 2015 stated that they have no strong objection to the temporary suspension of the water quality monitoring. Water Quality Monitoring was suspended from 6 June 2015 effectively and will resume when Phase II Reclamation commences in the fourth quarter of 2016 tentatively.

Potential environmental impacts arising from the above upcoming construction activities in the coming quarterly period are expected to be mainly associated with dust, marine ecology and waste management issues.

3.3 Monitoring Schedule for the Coming Quarter

Impact monitoring for air quality and marine ecology (include dolphin monitoring) are scheduled to continue for the next reporting period.

The monitoring programme has been reviewed and was considered as adequate to cater for the nature of works in progress. Change to the monitoring programme was thus not considered to be necessary at this stage. The monitoring programme will be evaluated as appropriate in the next reporting period.

4 Conclusions

This Twelfth Quarterly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 September 2016 to 30 November 2016, in accordance with the Updated EM&A Manual and the requirements of EP-354/2009/D.

Air quality (including 1-hour TSP and 24-hour TSP) and dolphin monitoring were carried out in the reporting period. No Action or Limit Level exceedances for 1-hr TSP were recorded. No Action or Limit Level exceedances for 24-hr TSP were record.

A total of 13 groups of 48 Chinese White Dolphins sightings were recorded during the six sets of surveys in this reporting quarter. All dolphin sightings were made during on-effort search, and all except one on-effort dolphin sightings were made on primary lines. Whilst one limit level exceedance was recorded for the quarterly dolphin monitoring data between September and November 2016, no unacceptable impact from the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was noticeable from general observations. Although the dolphins infrequently occurred along the alignment of TM-CLKL Northern Connection Sub-Sea Tunnel Section in the past and during the baseline monitoring period, it is apparent that dolphin usage has been significantly reduced in NEL. It is critical to monitor the dolphin usage in North Lantau region in the upcoming quarters, to determine whether the dolphins are continuously affected by the various construction activities in relation to the construction works of the Contract, and whether suitable mitigation measure can be applied to improve the situation.

Thirteen weekly environmental site inspections were carried out in the reporting period. Recommendations on remedial actions provided for the deficiencies identified during the site audits were properly implemented by the Contractor. No non-compliance event was recorded during the reporting period.

Two environmental complaints regarding whitish effluent discharge at the sea near cell 54-55 of the artificial island of HKBCF and suspected illegal wastewater discharge at Northern Landfall were received from ENPO on 22 September 2016 and from EPD on 28 November 2016 respectively. Upon investigation, the complaints were considered related to this Project.

No notification of summons or successful prosecution recorded in the reporting period. The monitoring programme has been reviewed and was considered as adequate to cater for the nature of works in progress. Change to the monitoring programme was thus not recommended at this stage. The monitoring programme will be evaluated as appropriate in the next reporting period. The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

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^{([1]) ERM (2013) Enhanced TSP Monitoring Plan. Submitted on 28 October 2013 and subsequently approved by EPD on 1 November 2013.}