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 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 Contract commenced on 1 November 2013 and will tentatively be completed in early 2020. 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 Seventy-third Monthly EM&A report presenting the EM&A works carried out during the period from 1 to 30 November 2019 for the Contract No. HY/2012/08 Northern Connection Sub-sea Tunnel Section (the “Contract”) in accordance with the Updated EM&A Manual of the TM-CLK Link Contract. As informed by the Contractor, major activities in the reporting period included:

Land-based Works

· Construction of Thermal barrier – TBM tunnel;

· Construction of Walkway Corbel & Cover – TBM Tunnel;

· Road & Drainage works – Portion N-A;

· Gantry Crane Removal – Portion N-A;

· RC structure – Portion S-A;

· Backfilling – Portion S-A & S-C;

· Water Treatment Facilities Dismantling – Portion S-C;

· Road & Drainage - Portion S-C

Marine-based Works

· Seawall Modification Works – Portion S-B

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

Water Quality Monitoring 13 sessions

Impact Dolphin Monitoring 2 sessions

Joint Environmental Site Inspection 4 sessions

Implementation of Marine Mammal Exclusion Zone

Daily marine mammal exclusion zone was in effect during the period of silt curtain installation in open waters under this Contract. No sighting of the Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was recorded in November 2019 during the exclusion zone monitoring.

Summary of Breaches of Action/Limit Levels

Breaches of Action and Limit Levels for Air Quality

Five (5) Action Level and Three (3) Limit Level exceedances of 1-hour TSP Monitoring were recorded in the air quality monitoring of this reporting month.

Breaches of Action and Limit Levels for Water Quality

One (1) Action Level exceedance for Depth-averaged suspended soilds was recorded in the water quality monitoring of this reporting month.

Breaches of Action and Limit Levels for Dolphin Monitoring

Whilst one (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between September and November 2019, 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. Due to monthly variation in dolphin occurrence within the study area, it would be more appropriate to draw conclusion on whether any impacts on dolphins have been detected related to the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section in the quarterly EM&A reports, where comparison on distribution, group size and encounter rates of dolphins between the quarterly impact monitoring period and baseline monitoring period will be made.

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.

No environmental complaint was received in this reporting period.

No environmental summons was received in this reporting period.

Reporting Change

There was no change in the monitoring programme in this reporting period.

Upcoming Works for the Next Reporting Month

Works to be undertaken in the next monitoring period of December 2019 include the following:

Land-based Works

· Construction of Thermal barrier – TBM tunnel;

· Construction of Walkway Corbel & Cover – TBM Tunnel;

· Road & Drainage works – Portion N-A;

· Gantry Crane Removal – Portion N-A;

· RC structure – Portion S-A;

· Backfilling – Portion S-A & S-C;

· Water Treatment Facilities Dismantling – Portion S-C;

· Road & Drainage - Portion S-C;

· Tower Crane Removal – Portion S-C;

· Gantry Crane Removal – Portion S-C

Marine-based Works

· Seawall Modification Works – Portion S-B

Future Key Issue

Potential environmental impacts arising from the above upcoming construction activities in the next reporting month of December 2019 are mainly associated with dust, marine water quality, 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-354/2009/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/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). Ramboll 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 in early 2020. 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 Seventy-third Monthly 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 in November 2019.

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 24/SD	Ken T.M. Cheng	2762 4062	3188 6614
SOR (AECOM Asia Company Limited)	Chief Resident Engineer	Roger Man Andrew Westmoreland	2293 6388 2293 6360	2293 6300 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 (Dragages – Bouygues Joint Venture)	Deputy Environmental Manager	Bryan Lee	2293 7323	2293 7499
	24-hour hotline		2293 7330
ET (ERM-HK)	ET Leader	Jasmine Ng	2271 3311	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 Contract 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
· Construction of Thermal barrier – TBM tunnel; · Construction of Walkway Corbel & Cover – TBM Tunnel; · Road & Drainage works – Portion N-A; · Gantry Crane Removal – Portion N-A; · RC structure – Portion S-A; · Backfilling – Portion S-A & S-C; · Water Treatment Facilities Dismantling – Portion S-C; · Road & Drainage - Portion S-C Marine-based Works · Seawall Modification Works – Portion S-B

Construction Activities Undertaken

Land-based Works

· Construction of Thermal barrier – TBM tunnel;

· Construction of Walkway Corbel & Cover – TBM Tunnel;

· Road & Drainage works – Portion N-A;

· Gantry Crane Removal – Portion N-A;

· RC structure – Portion S-A;

· Backfilling – Portion S-A & S-C;

· Water Treatment Facilities Dismantling – Portion S-C;

· Road & Drainage - Portion S-C

Marine-based Works

· Seawall Modification Works – Portion S-B

Figure 1.2 Locations of Construction Activities – November 2019

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

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 commenced on 24 October 2014.

High volume samplers (HVSs) were used to carry out the 1-hour and 24-hour TSP monitoring on 1, 4, 7, 10, 13, 16, 19, 22, 25 and 28 November 2019 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 meter 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. Copies of the calibration certificates for the equipment are presented in Appendix E.

Table 2.1 Locations of Impact Air Quality Monitoring Stations and Monitoring Dates in this Reporting Period

Monitoring Station	Monitoring Dates	Location	Description	Parameters & Frequency
ASR1	1, 4, 7, 10, 13, 16, 19, 22, 25 and 28 November 2019	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) 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

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 K.

2.1.3 Monitoring Schedule for the Reporting Month

The schedule for air quality monitoring in November 2019 is provided in Appendix F.

2.1.4 Results and Observations

The monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4, respectively. Detailed impact air quality monitoring results and graphical presentations are presented in Appendix G.

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

Station	Average (µg/m³)	Range (µg/m³)	Action Level (µg/m³)	Limit Level (µg/m³)
ASR1	223	83 - 626	331	500
ASR5	233	91 - 534	340	500
AQMS1	124	66 - 202	335	500
ASR6	139	47 - 216	338	500
ASR10	78	13 - 143	337	500

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

Station	Average (µg/m³)	Range (µg/m³)	Action Level (µg/m³)	Limit Level (µg/m³)
ASR1	135	71 - 207	213	260
ASR5	140	74 - 196	238	260
AQMS1	84	58 - 105	213	260
ASR6	101	56 - 137	238	260
ASR10	64	33 - 92	214	260

The weather condition during the monitoring period varied from sunny to cloudy. The major dust sources in the reporting period included construction activities under the Contract as well as nearby traffic emissions.

A total of 10 1-hour TSP and 24-hour TSP monitoring were undertaken in this reporting month. Five (5) Action Level and Three (3) Limit Level exceedances of 1-hour TSP Monitoring were recorded in the air quality monitoring of this reporting month.

Meteorological information collected at the ASR5, including wind speed and wind direction, is provided in Appendix H.

2.2 Water Quality Monitoring

2.2.1 Monitoring Requirements & Equipment

The Seawall Modification Works has commenced on 12 August 2019. Water quality monitoring was carried out in this reporting month.

In accordance with the approved Environmental Review Report dated 21 March 2018 for the Change in Design of Vertical Seawall to Sloping Seawall on Southern Landfall, Updated Impact water quality monitoring programme and water quality monitoring stations IS17, SR7 and IS(Mf)11 specified under the EM&A Manual for HZMB HKBCF project will be adopted. (Figure 2.2; Table 2.5).

The Action and Limit Levels of the water quality monitoring were adopted from the EM&A Manual for HZMB HKBCF project. The Action and Limit Levels are provided in Appendix D.

Table 2.5 Locations of Water Quality Monitoring Stations and the Corresponding Monitoring Requirements

Station ID	Type	Coordinates		*Parameters, unit	Depth	Frequency
		Easting	Northing
IS(Mf)11	Impact Station (Close to HKBCF construction site)	813562	820716	Ÿ Temperature(°C) Ÿ pH(pH unit) Ÿ Turbidity (NTU) Ÿ Water depth (m) Ÿ Salinity (ppt) Ÿ DO (mg/L and % of saturation) · SS (mg/L)	3 water depths: 1m below sea surface, mid-depth and 1m above sea bed. If the water depth is less than 3m, mid-depth sampling only. If water depth less than 6m, mid-depth may be omitted.	Impact monitoring: 3 days per week, at mid-flood and mid-ebb tides during the construction period of the Contract.
IS17	Impact Station (Close to HKBCF construction site)	814539	820391
SR7	Sensitive receivers (Tai Mo Do)	814293	821431
IS(Mf)9	Impact Station (Close to HKBCF construction site)	813273	818850
IS(Mf)16	Impact Station (Close to HKBCF construction site)	814328	819497
IS8(N)	Impact Station (Close to HKBCF construction site)	814413	818570
SR4(N2)	Sensitive receiver (Tai Ho Inlet)	814688	817996
SR4a	Sensitive receiver	815247	818067
CS(Mf)3(N)	Control Station	808814	822355
CS(Mf)5	Control Station	817990	821129
*Notes: In addition to the parameters presented monitoring location/position, time, water depth, sampling depth, tidal stages, weather conditions and any special phenomena or works underway nearby were also recorded. Water Quality Monitoring Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2 May 2017. Water Quality Monitoring Station SR4 was relocated to SR4(N) since 2 March 2018. Water Quality Monitoring Station SR4(N) was relocated to SR4(N2) since 12 June 2019 Water Quality Monitoring Station IS8 was relocated to IS8(N) since 12 June 2019.

Table 2.6 summarizes the equipment used in the impact water quality monitoring programme. Copies of the calibration certificates are attached in Appendix E.

Table 2.6 Water Quality Monitoring Equipment

Equipment	Model
Multi-Parameters	YSI ProDss 00019CB2
Multi-Parameters	YSI ProDss 0001C6A7
Multi-Parameters	YSI ProDss 16H104233
Multi-Parameters	YSI ProDss 17H105557
Positioning Equipment	Furuno GP-170
Water Depth Detector	Lowrance Mark 5x / Garmin Striker 4

2.2.2 Action & Limit Levels

The Action and Limit levels of water quality impact monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix K.

2.2.3 Monitoring Schedule for the Reporting Month

The schedule for water quality monitoring in November 2019 is provided in Appendix F.

2.2.4 Results and Observations

Impact water quality monitoring was conducted at all designated monitoring stations in the reporting month. Results and graphical presentations of impact water quality monitoring are presented in Appendix J.

In this reporting period, a total of thirteen (13) monitoring events were undertaken in which One (1) Action Level exceedance for Depth-averaged suspended soilds was recorded in the water quality monitoring.

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, Contract No. HY/2012/08 has taken over the responsibility for implementation of dolphin monitoring from HZMB HKLR Contract No. HY/2011/03 since October 2019.

2.3.2 Monitoring Equipment

Table 2.7 summarises the equipment used for the impact dolphin monitoring.

Table 2.7 Dolphin Monitoring Equipment

Equipment	Model
Global Positioning System (GPS)	Garmin 18X-PC Geo One Phottix
Camera	Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens
Laser Binocular	Infinitor LRF 1000
Marine Binocular	Bushell 7 x 50 marine binocular with compass and reticules
Vessel for Monitoring	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 2.3. The co-ordinates of all transect lines are shown in Table 2.8 below.

Table 2.8 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	805476	820800*	14	Start Point	817537	820220
2	End Point	805476	826654	14	End Point	817537	824613
3	Start Point	806464	821150*	15	Start Point	818568	820735
3	End Point	806464	822911	15	End Point	818568	824433
4	Start Point	807518	821500*	16	Start Point	819532	821420
4	End Point	807518	829230	16	End Point	819532	824209
5	Start Point	808504	821850*	17	Start Point	820451	822125
5	End Point	808504	828602	17	End Point	820451	823671
6	Start Point	809490	822150*	18	Start Point	821504	822371
6	End Point	809490	825352	18	End Point	821504	823761
7	Start Point	810499	822000*	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	821176	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	24*	Start Point	805476*	815900*
12	End Point	815542	824882	24*	End Point	805476*	819100*

Remarks: The coordinates of several starting and ending points have been revised due to the presence of a work zone to the north of the airport platform with intense construction activities in association with the construction of the third runway expansion for the Hong Kong International Airport. Co-ordinates in red and marked with asterisk are revised co-ordinates of transect line.

2.3.5 Action & Limit Levels

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

2.3.6 Monitoring Schedule for the Reporting Month

Dolphin monitoring was carried out on 5, 19, 27 and 28 of November 2019. The dolphin monitoring schedule for the reporting month is shown in Appendix F.

2.3.7 Results & Observations

A total of 265.50 km of survey effort was collected, with 98.8% of the total survey effort being conducted under favourable weather conditions (i.e. Beaufort Sea State 3 or below with good visibility) in November 2019. Among the two areas, 98.80 km and 166.70 km of survey effort were collected from NEL and NWL survey areas, respectively. The total survey effort conducted on primary and secondary lines were 189.94 km and 75.56 km respectively. The survey efforts are summarized in Appendix I.

One Chinese White Dolphins sighting was recorded during the two sets of surveys in November 2019. The dolphin sighting was made in NWL, while none was sighted in NEL. The lone dolphin sighting was made during on-effort search and was made on primary lines. The dolphin groups were not associated with any operating fishing vessel.

No dolphin sighting was made in the proximity of the TM-CLKL alignment. The distribution of dolphin sightings during the reporting month is shown in Figure 2.4.

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) in November 2019 with the results present in Tables 2.9 and 2.10.

Table 2.9 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: November 5^th / 19^th	0.0	0.0
NEL	Set 2: November 27^th / 28^th	0.0	0.0
NWL	Set 1: November 5^th / 19^th	1.7	1.7
NWL	Set 2: November 27^th / 28^th	0.0	0.0

Note: Dolphin Encounter Rates are deduced from the Two Sets of Surveys (Two Surveys in Each Set ) in November 2019 in Northeast (NEL) and Northwest Lantau (NWL)

Table 2.10 Monthly 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)
	Primary Lines Only	Both Primary and Secondary Lines	Primary Lines Only	Both Primary and Secondary Lines
Northeast Lantau	0.0	0.0	0.0	0.0
Northwest Lantau	0.9	0.6	0.9	0.6

Note: Overall dolphin encounter rates (sightings per 100 km of survey effort) from all four surveys are conducted in November 2019 on primary lines only as well as both primary lines and secondary lines in Northeast and Northwest Lantau.

Due to monthly variation in dolphin occurrence within the survey area, it would be more appropriate to draw conclusion on whether any unacceptable impacts on dolphins have been detected in relation to the construction activities of this Contract in the quarterly EM&A reports, where comparison on distribution, group size and encounter rates of dolphins between the quarterly impact monitoring period and baseline monitoring period will be made.

2.3.8 Implementation of Marine Mammal Exclusion Zone

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. In the reporting month, four (4) site inspections were carried out on 7, 14, 21 and 28 November 2019.

Key observations and recommendations during the site inspections in this reporting period are summarized in Table 2.11.

Table 2.11 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Month

Inspection Date	Observations	Recommendations/ Remarks
7 November 2019	Works Area – TBM tunnel Ÿ The cement batching station should be sheltered on top and 3 sides. Works Area – Portion S-A Ÿ Drip tray should be provided for the chemical containers. Ÿ Broken water barrier should be removed. Reminder from the SOR Works Area - Portion S-A Ÿ The lifting eyes should be filled with sand.	Works Area – TBM tunnel Ÿ The Contractor was reminded to shelter the cement batching station on top and 3 sides. Works Area – Portion S-A Ÿ The Contractor was reminded to provide drip tray for the chemical containers. Ÿ The Contractor was reminded to remove the broken barrier. Reminder from the SOR Works Area - Portion S-A Ÿ The Contractor was reminded to fill the lifting eyes with sand.
14 November 2019	Works Area – Portion S-B Ÿ The damaged NRMM label for the excavator should be replaced. Works Area – Portion N-A Ÿ Water spraying should be applied on main haul raod. Ÿ Drip tray should be provided for the chemical containers. Reminder from the SOR Works Area – Portion S-B Ÿ Stagnant water should be cleared.	Works Area – Portion S-B Ÿ The Contractor was reminded to replace the damaged NRMM label for the excavator. Works Area – Portion N-A Ÿ The Contractor was reminded to apply water spraying on main haul road. Ÿ The Contractor was reminded to provide drip tray for the chemical containers. Reminder from the SOR Works Area – Portion S-B Ÿ The Contractor was reminded to clear the stagnant water.
21 November 2019	Works Area – TBM tunnel Ÿ The NRMM label should be replaced. Ÿ Food waste from the skip should be removed and better housekeeping should be maintained. Works Area – Portion S-B Ÿ Drip tray should be provided for the chemical containers. Reminder from the SOR Works Area – Portion S-A Ÿ Broken water barrier should be replaced.	Works Area – TBM tunnel Ÿ The Contractor was reminded to replace the NRMM label. Ÿ The Contractor was reminded to remove the food waste from the skip and maintain better housekeeping. Works Area – Portion S-B Ÿ The Contractor was reminded to provide drip tray for the chemical containers. Reminder from the SOR Works Area – Portion S-A Ÿ The Contractor was reminded to replace the broken water barrier.
28 November 2019	Works Area – Portion S-A Ÿ Food waste should be removed. Works Area – TBM tunnel Ÿ The faded NRMM label should be replaced.	Works Area – Portion S-A Ÿ The Contractor was reminded to remove the food waste. Works Area – TBM tunnel Ÿ The Contractor was reminded to replace the NRMM label.

Inspection Date

Observations

Recommendations/ Remarks

7 November 2019

Works Area – TBM tunnel

Ÿ The cement batching station should be sheltered on top and 3 sides.

Works Area – Portion S-A

Ÿ Drip tray should be provided for the chemical containers.

Ÿ Broken water barrier should be removed.

Reminder from the SOR

Works Area - Portion S-A

Ÿ The lifting eyes should be filled with sand.

Works Area – TBM tunnel

Ÿ The Contractor was reminded to shelter the cement batching station on top and 3 sides.

Works Area – Portion S-A

Ÿ The Contractor was reminded to provide drip tray for the chemical containers.

Ÿ The Contractor was reminded to remove the broken barrier.

Reminder from the SOR

Works Area - Portion S-A

Ÿ The Contractor was reminded to fill the lifting eyes with sand.

14 November 2019

Works Area – Portion S-B

Ÿ The damaged NRMM label for the excavator should be replaced.

Works Area – Portion N-A

Ÿ Water spraying should be applied on main haul raod.

Ÿ Drip tray should be provided for the chemical containers.

Reminder from the SOR

Works Area – Portion S-B

Ÿ Stagnant water should be cleared.

Works Area – Portion S-B

Ÿ The Contractor was reminded to replace the damaged NRMM label for the excavator.

Works Area – Portion N-A

Ÿ The Contractor was reminded to apply water spraying on main haul road.

Ÿ The Contractor was reminded to provide drip tray for the chemical containers.

Reminder from the SOR

Works Area – Portion S-B

Ÿ The Contractor was reminded to clear the stagnant water.

21 November 2019

Works Area – TBM tunnel

Ÿ The NRMM label should be replaced.

Ÿ Food waste from the skip should be removed and better housekeeping should be maintained.

Works Area – Portion S-B

Ÿ Drip tray should be provided for the chemical containers.

Reminder from the SOR

Works Area – Portion S-A

Ÿ Broken water barrier should be replaced.

Works Area – TBM tunnel

Ÿ The Contractor was reminded to replace the NRMM label.

Ÿ The Contractor was reminded to remove the food waste from the skip and maintain better housekeeping.

Works Area – Portion S-B

Ÿ The Contractor was reminded to provide drip tray for the chemical containers.

Reminder from the SOR

Works Area – Portion S-A

Ÿ The Contractor was reminded to replace the broken water barrier.

28 November 2019

Works Area – Portion S-A

Ÿ Food waste should be removed.

Works Area – TBM tunnel

Ÿ The faded NRMM label should be replaced.

Works Area – Portion S-A

Ÿ The Contractor was reminded to remove the food waste.

Works Area – TBM tunnel

Ÿ The Contractor was reminded to replace the NRMM label.

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

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 included mainly construction wastes (inert and non-inert). Reference has been made to the waste flow table prepared by the Contractor (Appendix M). The quantities of different types of wastes are summarized in Table 2.12.

Table 2.12 Quantities of Different Waste Generated in the Reporting Month

Month/Year	Inert Construction Waste ^(a) (tonnes)	Inert Construction Waste Re-used (tonnes)	Non-inert Construction Waste ^(b) (tonnes)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)	Marine Sediment (m³)
Month/Year	Inert Construction Waste ^(a) (tonnes)	Inert Construction Waste Re-used (tonnes)	Non-inert Construction Waste ^(b) (tonnes)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)	Category L	Category M (M_p & M_f)	Mixed (L+M)
November 2019	6,215	0	525	273,630	1,000	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.

2.6 Environmental Licenses and Permits

The status of environmental licensing and permit is summarized in Table 2.13 below.

Table 2.13 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	363510	19 August 2013	Throughout the Contract	DBJV	Northern Landfall
Construction Dust Notification	403620	10 June 2016	Throughout the Contract	DBJV	Southern Landfall
Chemical Waste Registration	5213-422-D2516-02	18 January 2017	Throughout the Contract	DBJV	Northern Landfall
Chemical Waste Registration	5213-951-D2591-01	25 May 2016	Throughout the Contract	DBJV	Southern Landfall
Construction Waste Disposal Account	7018108	28 August 2013	Throughout the Contract	DBJV	Waste disposal in Contract No. HY/2012/08
Waste Water Discharge License	WT00031435-2018	2 August 2018	31 August 2023	DBJV	Southern Landfall
Waste Water Discharge License	WT00034060-2019	25 July 2019	30 June 2024	DBJV	Northern Landfall (4 Discharge Point)
Construction Noise Permit	GW-RW0406-18	17 October 2019	15 April 2020	DBJV	Urmston Road in front of Pillar Point
Construction Noise Permit	GW-RW0374-19	20 August 2019	19 February 2020	DBJV	WA23 @ Tsing Yi
Construction Noise Permit	GW-RS0766-19	2 September 2019	25 February 2020	DBJV	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

Five (5) Action Level and Three (3) Limit Level exceedances of 1-hour TSP Monitoring were recorded in the air quality monitoring of this reporting month.

One (1) Action Level exceedance for Depth-averaged suspended soilds was recorded in the water quality monitoring of this reporting month.

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between September and November 2019

Cumulative statistics are provided in Appendix L.

2.9 Summary of Complaints, Notification of Summons and Successful Prosecutions

The Environmental Complaint Handling Procedure is provided in Figure 2.5.

No environmental complaint was received in this reporting period.

No environmental summons was received in this reporting period.

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

3 Future Key Issues

3.1 Construction Activities for the Coming Month

As informed by the Contractor, the major works for the Contract in December 2019 are summarized in Table 3.1.

Table 3.1 Construction Works to Be Undertaken in the Coming Month

Works to be undertaken
Land-based Works · Construction of Thermal barrier – TBM tunnel; · Construction of Walkway Corbel & Cover – TBM Tunnel; · Road & Drainage works – Portion N-A; · Gantry Crane Removal – Portion N-A; · RC structure – Portion S-A; · Backfilling – Portion S-A & S-C; · Water Treatment Facilities Dismantling – Portion S-C; · Road & Drainage - Portion S-C; · Tower Crane Removal – Portion S-C; · Gantry Crane Removal – Portion S-C Marine-based Works · Seawall Modification Works – Portion S-B

Works to be undertaken

Land-based Works

· Construction of Thermal barrier – TBM tunnel;

· Construction of Walkway Corbel & Cover – TBM Tunnel;

· Road & Drainage works – Portion N-A;

· Gantry Crane Removal – Portion N-A;

· RC structure – Portion S-A;

· Backfilling – Portion S-A & S-C;

· Water Treatment Facilities Dismantling – Portion S-C;

· Road & Drainage - Portion S-C;

· Tower Crane Removal – Portion S-C;

· Gantry Crane Removal – Portion S-C

Marine-based Works

· Seawall Modification Works – Portion S-B

3.2 Key Issues for the Coming Month

3.3 Monitoring Schedule for the Coming Month

The tentative schedule for environmental monitoring in December 2019 is provided in Appendix F.

4 Conclusions and recommendations

4.1 Conclusions

This Seventy-third Monthly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 to 30 November 2019 , 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), water quality monitoring and dolphin monitoring were carried out in this reporting month.

Five (5) Action Level and Three (3) Limit Level exceedances of 1-hour TSP Monitoring were recorded in the air quality monitoring of this reporting month.

One (1) Action Level exceedance for Depth-averaged suspended soilds was recorded in the water quality monitoring of this reporting month.

Environmental site inspection was carried out four (4) times in November 2019. Remedial actions recommended for the deficiencies identified during the site audits were properly implemented by the Contractor.

No non-compliance event was recorded during the reporting period.

No environmental complaint was received in this reporting period.

No environmental summons was received in this 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.