Under Contract No. HY/2012/07, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Southern Connection Viaduct 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). Ramboll Environ Hong Kong Ltd. was employed by the HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A. Further applications for variation of environmental permit (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 southern landfall of TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area under EP-354/2009/D was handed-over to Contract No. HY/2012/07 after completion of reclamation works by Contract No. HY/2010/02 in June 2016.

The construction phase of the Contract commenced on 31 October 2013 and will be tentatively completed by 2018. The impact monitoring of the EM&A programme, including air quality, noise, water quality and marine ecological monitoring as well as environmental site inspections, commenced on 31 October 2013.

This is the Fifteenth Quarterly EM&A Report presenting the EM&A works carried out during the period from 1 June 2017 to 31 August 2017 for the Southern Connection Viaduct Section 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:

June 2017

Marine Works

· Uninstallation of marine piling platform;

· Pier construction;

· Launching gantry operation;

· Installation of deck segment and pier head segment; and

· Construction of underslung truss scheme (no additional seabed will be occupied other than those assumed in the approved EIA Report).

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

July 2017

Marine Works

· Uninstallation of marine piling platform;

· Pier construction;

· Launching gantry operation;

· Installation of deck segment and pier head segment; and

· Construction of underslung truss scheme (no additional seabed will be occupied other than those assumed in the approved EIA Report).

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

August 2017

Marine Works

· Uninstallation of marine piling platform;

· Launching gantry operation;

· Installation of deck segment and pier head segment; and

· Construction of underslung truss scheme (no additional seabed will be occupied other than those assumed in the approved EIA Report).

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

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

24-hour TSP monitoring 17 sessions

1-hour TSP monitoring 18 sessions

Noise monitoring 18 sessions

Water quality monitoring ([1]) 39 sessions

Dolphin monitoring 6 sessions

Joint Environmental site inspection 13 sessions

Breaches of Action and Limit Levels for Air Quality

No exceedance of Action and Limit Levels was recorded for air quality monitoring in the reporting period.

Breaches of Action and Limit Levels for Noise

No exceedance of Action and Limit Levels was recorded for construction noise monitoring in the reporting period.

Breaches of Action and Limit Levels for Water Quality

Thirty (30) Action Level and fourteen (14) Limit Level of Dissolved Oxygen (DO) exceedances and one (1) Action Level of Suspended Solids (SS) exceedances were recorded for water quality impact monitoring in the reporting period.

Impact Dolphin Monitoring

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2017. No unacceptable impact from the construction activities of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphins) was noticeable from general observations during the dolphin monitoring in this reporting quarter. The exceedance is considered unlikely due to the works of this Project upon further investigation.

Daily marine mammal exclusion zone monitoring was undertaken during the period of marine works under this Contract. No Passive Acoustic Monitoring (PAM) was implemented as the marine piling works were not carried out outside the daylight hours in this reporting period. No sighting of the Chinese White Dolphin was recorded in the monitoring period during the exclusion zone monitoring.

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 this reporting period.

Upcoming Works for the Next Reporting Period

Works to be undertaken in the coming quarter include the following:

September 2017

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Launching gantry operation;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

October 2017

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Launching gantry operation;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

November 2017

Land-based Works

· Pier construction;

· Re-alignment of Cheung Tung Road;

· Road works along North Lantau Highway;

· Launching gantry operation;

· Installation of pier head and deck segments; and

· Slope work of Viaducts A, B & C.

Future Key Issues

Potential environmental impacts arising from the above upcoming construction activities in the coming quarterly period are mainly associated with air quality, noise, marine water quality, marine ecology and waste management issue.

Party	Position	Name	Telephone	Fax
HyD (Highways Department)	Project Coordinator	Stanley Chan	2762 3406	3188 6614
	Senior Engineer	Steven Shum	2762 4133	3188 6614
SOR (AECOM Asia Company Limited)	Chief Resident Engineer	Daniel Ip	3553 3800	2492 2057
	Resident Engineer	Kingman Chan	3691 3950	3691 2899
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 (Gammon Construction Limited)	Environmental Manager	Brian Kam	3520 0387	3520 0486
Environmental Officer	Roy Leung	3520 0387	3520 0486
	24-hour Complaint Hotline		9738 4332
ET (ERM-HK)	ET Leader	Jovy Tam	2271 3113	2723 5660

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

1.5 Summary of EM&A Programme Requirements

The EM&A programme required environmental monitoring for air quality, noise, 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 described in the following sections, which include:

· Monitoring parameters;

· Monitoring schedules for the reporting months and forthcoming months;

· Action and Limit levels for all environmental parameters;

· Event Action Plan;

· Results and observations;

· Environmental mitigation measures, as recommended in the approved EIA Report; and

· Environmental requirement in contract documents.

2 EM&A RESULTS

2.1 Air Quality

The baseline air quality monitoring undertaken by the HZMB Projects during October 2011 included the two monitoring stations ASR9A and ASR9C for this Project. Thus, the baseline monitoring results and Action/Limit Level presented in HZMB Baseline Monitoring Report ([2]) are adopted for this Project.

2.1.1 Monitoring Requirements and Equipment

In accordance with the Updated EM&A Manual, impact 1-hour TSP monitoring was conducted three (3) times every six (6) days while the highest dust impact was expected. Impact 24-hour TSP monitoring was carried out once every six (6) days. The Action and Limit Levels of the air quality monitoring is provided in Appendix D.

1-hour TSP and 24-hour TSP monitoring were conducted at 2 alternative air quality monitoring stations, ASR8A (Area 4) and ASR9 (entrance of MTR Depot) during the reporting period in accordance with the requirement of the Updated EM&A Manual. The monitoring stations are indicated in Figure 2.1 and details are presented in Table 2.1.

High Volume Samplers (HVSs) were used for carrying out 1-hour and 24-hour TSP monitoring during the reporting period. The HVSs meets all requirements of the Updated EM&A Manual. Brand and model of the equipment are given in Table 2.2.

Wind data monitoring equipment was installed at Area 4 during the reporting period for logging wind speed and wind direction. The wind sensor was setup such that it was clear of obstructions or turbulence caused by building. The wind data monitoring equipment is recalibrated at least once every six months.

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

Monitoring Station (1)	Monitoring Period	Location	Description	Parameters & Frequency
ASR8A	2, 8, 14, 20, 26 and 29 June 2017 5, 11, 17, 20 and 26 July 2017 1, 7, 10, 16, 22, 28 and 31 August 2017	Area 4	On ground at the works area, Area 4	Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times per day every 6 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour every 6 days
ASR9	MTR Depot	On the ground nearby MTR Depot entrance

Monitoring Station (1)

Monitoring Period

Location

Description

Parameters & Frequency

ASR8A

2, 8, 14, 20, 26 and 29 June 2017

5, 11, 17, 20 and 26 July 2017

1, 7, 10, 16, 22, 28 and 31 August 2017

Area 4

On ground at the works area, Area 4

Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times per day every 6 days

Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour every 6 days

ASR9

MTR Depot

On the ground nearby MTR Depot entrance

Note:

(1) Air Quality Monitoring Stations ASR9A and ASR9C at Siu Ho Wan MTRC Depot proposed in accordance with the Updated EM&A were relocated to ASR9 and ASR8A respectively.

(2) Changes in monitoring schedule are provided in Section 2.1.3.

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 Sensor	Global Water (Wind Speed Sensor: WE550; Wind Direction Sensor: WE570)
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 are provided in Appendix D. The Event and Action plan is presented in Appendix J.

2.1.3 Monitoring Schedule for the Reporting Quarter

The schedules for air quality monitoring in the reporting quarter are provided in Appendix E. 24-hour TSP at ASR8A and ASR9 on 22 August 2017 was canceled due to adverse weather.

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. Monitoring results are presented graphically in Appendix F. Detailed impact air quality monitoring results and meteorological information were reported in the Forty-fourth to Forty-sixth Monthly EM&A Reports.

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

Month	Station	Average (µg/m3)	Range (µg/m3)	Action Level (µg/m3)	Limit Level (µg/m3)
June 2017	ASR 8A	60	38-97	394	500
June 2017	ASR 9	89	41-147	393	500
July 2017	ASR 8A	49	41-61	394	500
July 2017	ASR 9	63	38-93	393	500
August 2017	ASR 8A	55	13-163	394	500
August 2017	ASR 9	74	15-212	393	500

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

Month	Station	Average (µg/m3)	Range (µg/m3)	Action Level (µg/m3)	Limit Level (µg/m3)
June 2017	ASR 8A	42	38-45	178	260
June 2017	ASR 9	46	41-51	178	260
July 2017	ASR 8A	37	20-43	178	260
July 2017	ASR 9	41	30-54	178	260
August 2017	ASR 8A	30	15-71	178	260
August 2017	ASR 9	39	20-61	178	260

The major dust sources in the reporting period include construction activities under the Contract as well as nearby traffic emissions.

In this reporting period, a total of 18 monitoring events for 1-hour TSP and 17 monitoring events for 24-hour TSP were undertaken within the reporting period, in which no Action or Limit Level exceedance for 1-hour and 24-hour TSP for air quality was recorded during the reporting period.

2.2 Noise Monitoring

The baseline noise monitoring undertaken by the HZMB Projects during the period of 18 October to 1 November 2011 included the monitoring station NSR1 for this Project. Thus, the baseline monitoring results and Action/ Limit Level presented in HZMB Baseline Monitoring Report ([3]) are adopted for this Project.

2.2.1 Monitoring Requirements and Equipment

In accordance with the Updated EM&A Manual, impact noise monitoring should be conducted once per week during the construction phase of the Contract.

Noise monitoring was conducted at the alternative noise monitoring station, NSR1A (Pak Mong Village Pavilion) during the reporting period in accordance with the requirement of Updated EM&A Manual. Figure 2.2 shows the location of the monitoring station. Table 2.5 describes the details of the monitoring station.

Noise monitoring was performed using sound level meter at the designated monitoring station in the reporting quarter. The deployed sound level meter complies with the International Electrotechnical Commission Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator was deployed to check the sound level meter at a known sound pressure level. Brand and model of the equipment is given in Table 2.6.

Table 2.5 Location of Impact Noise Monitoring Station and Monitoring Dates in this Reporting Period

Monitoring Station	Monitoring Period	Location	Parameters & Frequency
NSR1A	2, 8, 14, 20, 26 and 29 June 2017 5, 11, 17, 20 and 26 July 2017 1, 7, 10, 16, 22, 28 and 31 August 2017	Pak Mong Village Pavilion	Ÿ 30-mins measurement at each monitoring station between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would be recorded. Ÿ At least once a week
Note: (1) Noise Monitoring Station NSR1 at Pak Mong Village proposed in accordance with the Updated EM&A was relocated to NSR1A.

Monitoring Station

Monitoring Period

Location

Parameters & Frequency

NSR1A

2, 8, 14, 20, 26 and 29 June 2017

5, 11, 17, 20 and 26 July 2017

1, 7, 10, 16, 22, 28 and 31 August 2017

Pak Mong Village Pavilion

Ÿ 30-mins measurement at each monitoring station between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would be recorded.

Ÿ At least once a week

Note:

(1) Noise Monitoring Station NSR1 at Pak Mong Village proposed in accordance with the Updated EM&A was relocated to NSR1A.

Table 2.6 Noise Monitoring Equipment

Equipment	Brand and Model
Integrated Sound Level Meter	Rion NL-31 / NL-52
Acoustic Calibrator	Rion NC-73

Equipment

Brand and Model

Integrated Sound Level Meter

Rion NL-31 / NL-52

Acoustic Calibrator

Rion NC-73

2.2.2 Action and Limit Levels

The Action and Limit levels of the noise monitoring are provided in Appendix D. The Event and Action plan is presented in Appendix J.

2.2.3 Monitoring Schedule for the Reporting Quarter

The schedule for construction noise monitoring in the reporting period is provided in Appendix E.

2.2.4 Results and Observations

The monitoring results for noise monitoring are summarized in Table 2.7. Monitoring results are presented graphically in Appendix G and detailed impact noise monitoring results are reported in the Forty-fourth to Forty-sixth Monthly EM&A Reports.

Table 2.7 Summary of Construction Noise Monitoring Results at NSR1A in the Reporting Period

Month	Average , dB(A), Leq (30mins)	Range, dB(A), Leq (30mins)	Limit Level, dB(A), Leq (30mins)
June 2017	62	61-62	75
July 2017	63	62-63	75
August 2017	63	61-64	75

A total of 18 monitoring events were undertaken in the reporting period with no Action Level and Limit Level exceedance recorded at the monitoring station in the reporting period. No action is thus required to be undertaken in accordance with the Event Action Plan presented in Appendix J.

Major noise sources during the noise monitoring included construction activities, nearby construction works, insect noise and nearby traffic noise and aircraft noise.

2.3 Water Quality Monitoring

The baseline water quality monitoring undertaken by the HZMB Projects between 6 and 31 October 2011 included all monitoring stations except SR4a for the Project. Thus, the baseline monitoring results except for station SR4a and Action/Limit Level presented in HZMB Baseline Monitoring Report ([4]) are adopted for this Project. Baseline water quality monitoring was conducted at station SR4a from 29 August to 24 September 2013.

2.3.1 Monitoring Requirements and Equipment

Impact water quality monitoring was carried out to ensure that any deterioration of water quality was detected, and that timely action was taken to rectify the situation. Impact water quality monitoring was undertaken three days per week during the construction period at seven water quality monitoring stations in accordance with the Updated EM&A Manual.

Due to Three-Runway System (3RS) marine construction works, an alternative water quality control station CS(Mf)3(N) was proposed to replace control station CS(Mf)3. The Proposal of Alternative Water Quality Monitoring Station ([5]) was submitted to EPD on 31 March 2017 and granted on 6 April 2017. Water quality monitoring at CS(Mf)3(N) is undertaken since 2 May 2017. The locations of the monitoring stations under the Contract are shown in Figures 2.3 and 2.4 and Table 2.8.

Results of water quality monitoring for the period between June and July 2017 were adopted from the published EM&A data of Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works ([6])([7]).

The locations of the monitoring stations covered by Contract No. HY/2010/02 with those overlapped with Contract No. HY/2012/07 are presented in Table 2.8.

Table 2.8 Locations of Water Quality Monitoring Stations and the Corresponding Monitoring Requirements

Station ID	Type	Coordinates		*Parameters, unit	Depth	Frequency
		Easting	Northing
IS(Mf)9	Impact Station (Close to HKBCF construction site)	813273	818850	Ÿ Temperature(°C) Ÿ pH(pH unit) Ÿ Turbidity (NTU) Ÿ Water depth (m) Ÿ Salinity (ppt) Ÿ Dissolved Oxygen (DO) (mg/L and % of saturation) · Suspended Solid (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.
IS(Mf)16	Impact Station (Close to HKBCF construction site)	814328	819497
IS8	Impact Station(Close to HKBCF construction site)	814251	818412
SR4	Sensitive receiver (Tai Ho Inlet)	814760	817867
SR4a	Sensitive receiver	815247	818067
SR4(N)	Sensitive receiver (Tai Ho)	814705	817859
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. Station SR4a is not covered by HY/2010/02. Data from Station SR4(N) is considered representative of those from SR4a since they are located 50m from each other and coral colonies, which is the SR concerned at SR4a, are also presented along the seawall nearby SR4(N).

Table 2.9 summarizes the equipment used in the impact water quality monitoring programme.

Table 2.9 Water Quality Monitoring Equipment

Equipment	Brand and Model
Multi-parameters (Dissolved Oxygen, Salinity, Turbidity, Temperature, pH)	YSI ProDSS / YSI 6920 V2 Sonde

Positioning Equipment	Furuno GP-170
Water Depth Detector	Lowrance Mark 5x / Garmin Striker 4
Water Sampler	WildCo Vertical Alpha Bottles 1120-2.2L /1120-3.2L Aquatic Research Instrument Vertical/Horizontal Point Water Sampler 2.2L / 3.0L

Notes: Water quality monitoring equipment used for water quality monitoring for the period between June and July 2017 could be referred to the published Monthly EM&A Reports of Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works. Available at http://www.hzmbenpo.com/

2.3.2 Action & Limit Levels

The Action and Limit Levels of the water quality monitoring are provided in Appendix D.

2.3.3 Monitoring Schedule for the Reporting Quarter

The schedules for water quality monitoring in the reporting quarter are provided in Appendix E ([8]). Water quality monitoring on 23 August 2017 was canceled due to adverse weather.

2.3.4 Results and Observations

In this reporting period, a total of 39 monitoring events for impact water quality monitoring were conducted at monitoring stations in the reporting period. Monitoring results are presented graphically in Appendix H and detailed impact water quality monitoring results were reported in the Forty-fourth to Forty-sixth Monthly EM&A Reports.

Results of water quality monitoring between 1 June 2017 and 31 July 2017 were adopted from the published EM&A data of Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works ([9]) ([10]).

2.4 Dolphin Monitoring

2.4.1 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 Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) from the Contract. 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.

2.4.2 Monitoring Equipment

Table 2.10 summarizes the equipment used for the impact dolphin monitoring.

Table 2.10 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

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

2.4.3 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.

2.4.4 Monitoring Location

The impact dolphin monitoring was carried out in the NEL and NWL along the line transect as depicted in Figure 2.5a and 2.5b. The co-ordinates of all transect lines are shown in Table 2.11 and 2.12 below ([11]).

Table 2.11 Impact Dolphin Monitoring Line Transect Co-ordinates (June –July 2017)

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

Table 2.12 Impact Dolphin Monitoring Line Transect Co-ordinates (August 2017)

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

2.4.5 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 J.

2.4.6 Monitoring Schedule for the Reporting Period

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

2.4.7 Results & Observations

A total of 793.06 km of survey effort was collected, with 97.8% of the total survey effort being conducted under favourable weather conditions (i.e. Beaufort Sea State 3 or below with good visibility). Among the two areas, 290.58 km and 502.48 km of survey effort were conducted in NEL and NWL survey areas respectively. The total survey effort conducted on primary lines was 575.14 km, while the effort on secondary lines was 217.92 km. Survey effort conducted on both primary and secondary lines were considered as on-effort survey data. The survey efforts are summarized in Appendix I.

During the six sets of monitoring surveys in June to August 2017, a total of twelve (12) groups of 34 Chinese White Dolphins were sighted. All dolphin sightings were made during on-effort, while eight of the twelve on-effort dolphin sightings were made on primary lines. In this quarterly period, all dolphin groups were sighted in NWL, no sighting of dolphin was sighted in NEL. Summary table of the dolphin sightings is shown in Appendix II.

Encounter rates of Chinese White Dolphins deduced from the survey effort and on-effort sighting data from the primary transect lines under favourable conditions (Beaufort 3 or below) in the reporting period with the results presented in Tables 2.13 and 2.14.

Table 2.13 Individual Survey Event Encounter Rates

Survey Area	Survey period	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)
Survey Area	Survey period	Primary Lines Only	Primary Lines Only
NEL	Set 1: 14th/ 15th Jun 2017	0.0	0.0
	Set 2: 20th / 26th Jun 2017	0.0	0.0
	Set 3: 20th /24th Jul 2017	0.0	0.0
	Set 4: 27th / 28th Jul 2017	0.0	0.0
	Set 5: 7th / 15th Aug 2017	0.0	0.0
	Set 6: 21st /31st Aug 2017	0.0	0.0
NWL	Set 1: 14th/ 15th Jun 2017	0.00	0.00
	Set 2: 20th / 26th Jun 2017	0.00	0.00
	Set 3: 20th /24th Jul 2017	1.64	14.79
	Set 4: 27th / 28th Jul 2017	0.00	0.00
	Set 5: 7th / 15th Aug 2017	4.95	6.61
	Set 6: 21st /31st Aug 2017	6.58	18.09

Note: Dolphin Encounter Rates are deduced from the six sets of surveys (two surveys in each set) in the reporting period in Northeast (NEL) and Northwest Lantau (NWL)

Table 2.14 Quarterly Average Encounter Rates

Survey Area	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)
Survey Area	June – August 2017	September -November 2011	June – August 2017	September -November 2011
Northeast Lantau	0.0	6.00 ± 5.05	0.0	22.19 ± 26.81
Northwest Lantau	2.20 ± 2.88	9.85 ± 5.85	6.58 ± 8.12	44.66 ± 29.85

Note: encounter rates deduced from the baseline monitoring period (September – November 2011) have been recalculated based only on survey effort and on-effort sighting data made along the primary transect lines under favourable conditions

Group size of Chinese White Dolphins ranged from one (1) to nine (9) individuals per group in North Lantau region during June to August 2017. 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 2.15.

Table 2.15 Comparison of Quarterly Average Group Sizes

	Average Dolphin Group Size
	June – August 2017	September - November 2011
Overall	2.83 ± 2.33 (n = 12)	3.72 ± 3.13 (n = 66)
Northeast Lantau	---	3.18 ± 2.16 (n = 17)
Northwest Lantau	2.83 ± 2.33 (n = 12)	3.92 ± 3.40 (n = 49)

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2017.

During this quarter of dolphin monitoring, no unacceptable impact from the activities of this Contract on Chinese White Dolphins was noticeable from the general observations.

Although the dolphins infrequently occurred along the alignment of TM-CLKL Southern Connection Viaduct in the past and during the baseline monitoring period, it is apparent that dolphin usage has been significantly reduced in both NEL and NWL, and many individuals have shifted away from the important habitat around the Brothers Islands.

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.

2.4.8 Marine Mammal Exclusion Zone Monitoring

Daily marine mammal exclusion zone monitoring was undertaken during the period of marine works under this Contract. No sighting of Chinese White Dolphin was recorded in the monitoring period during the exclusion zone monitoring.

Passive Acoustic Monitoring (PAM) was decommissioned in this reporting period as no marine piling works was carried out outside the daylight hours since September 2015. Daytime marine mammal exclusion zone was still in effect to cater for temporary staging installation and uninstallation works.

2.5 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. Thirteenth (13) site inspections were carried out in the reporting quarter on 7, 14, 21 and 29 June 2017, 5, 12, 19 and 27 July 2017, 2, 9, 16, 24 and 31 August 2017.

Key observations during the site inspections in this reporting period are summarized in Table 2.16.

Table 2.16 Specific Observations Identified during the Weekly Site Inspection in this Reporting Period

Inspection Date	Location & Environmental Observations	Recommendations/ Remarks
7 June 2017	Viaduct D (Pier D13) Ÿ Accumulated general refuse should be cleared regularly. Viaduct D (Pier D14) Ÿ Drip tray under the generator was observed not well plugged. Ramp D Ÿ Chemical containers were observed not placed in drip tray.	Viaduct D (Pier D13) Ÿ The Contractor was reminded to clear accumulated general refuse. Viaduct D (Pier D14) Ÿ The Contractor was reminded to plug drip tray under the generator. Ramp D Ÿ The Contractor was reminded to place chemical containers in drip tray.
14 June 2017	Southern Landfall Portion A (Portion S-b) Ÿ Chemical containers were observed not placed in drip tray. Ÿ Stagnant water inside drip tray nearby the chemical containers should be cleared.	Southern Landfall Portion A (Portion S-b) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to clear stagnant water inside drip tray nearby the chemical containers.
21 June 2017	Viaduct D (Pier D13) Ÿ NRMM label should be displayed clearly on the generator. Ÿ Stagnant water inside drip tray should be cleared. Viaduct B (Pier B16) Ÿ Exposed slope was observed not fully covered by tarpaulin. Viaduct C (Pier C12) Ÿ Exposed stockpile was observed not fully covered by tarpaulin.	Viaduct D (Pier D13) Ÿ The Contractor was reminded to display NRMM label clearly on the generator. Ÿ The Contractor was reminded to clear stagnant water inside drip tray. Viaduct B (Pier B16) Ÿ The Contractor was reminded to fully cover exposed slope by tarpaulin. Viaduct C (Pier C12) Ÿ The Contractor was reminded to fully cover exposed stockpile by tarpaulin.
29 June 2017	Viaduct E (Pier E6) Ÿ Chemical containers were observed not placed in drip tray. Ÿ Stagnant water inside drip tray should be cleared. Viaduct E (Pier E10) Ÿ Chemical containers were observed not placed in drip tray.	Viaduct E (Pier E16) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to clear stagnant water inside drip tray. Viaduct E (Pier E10) Ÿ The Contractor was reminded to place chemical containers in drip tray.
5 July 2017	Viaduct E (Pier E4) Ÿ Chemical containers in the deck were observed not placed in drip tray. Ÿ NRMM label should be provided on the generator.	Viaduct E (Pier E4) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to provide NRMM label on the generator.
12 July 2017	Southern Landfall Portion A (Portion S-c) Ÿ Chemical container was observed not placed in drip tray.	Southern Landfall Portion A (Portion S-c) Ÿ The Contractor was reminded to place chemical container in drip tray.
19 July 2017	Viaduct E (Pier E12) Ÿ General refuse should be cleared regularly. Viaduct E (Pier E11) Ÿ Chemical containers were observed not placed in drip tray. Ÿ Air compressor was observed not fully placed in drip tray.	Viaduct E (Pier E12) Ÿ The Contractor was reminded to clear general refuse regularly. Viaduct E (Pier E11) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to fully place the air compressor in drip tray.
27 July 2017	Ramp C (Area I) Ÿ Chemical containers on the deck were observed not placed in drip tray. Ÿ General refuse should be cleared regularly. Viaduct C (Pier C15) Ÿ Stockpile was observed not being fully covered by tarpaulin. Ramp D (Area I) Ÿ Chemical containers were observed not placed in drip tray. Ÿ Watering should be provided on unpaved road.	Ramp C (Area I) Ÿ The Contractor was reminded to place chemical containers on the deck in drip tray. Ÿ The Contractor was reminded to clear general refuse regularly. Viaduct C (Pier C15) Ÿ The Contractor was reminded to fully cover stockpile by tarpaulin. Ramp D (Area I) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to provide watering on unpaved road.
2 August 2017	Viaduct B (Pier B16) Ÿ General refuse in the skip should be cleared. Viaduct B (Pier B11) Ÿ Chemical containers in the deck were observed not placed in drip tray.	Viaduct B (Pier B16) Ÿ The Contractor was reminded to clear general refuse in the skip. Viaduct B (Pier B11) Ÿ The Contractor was reminded to place chemical containers in drip tray.
9 August 2017	Viaduct E (Pier E11) Ÿ Chemical container was observed not placed in drip tray. Ÿ General refuse in the skip should be cleared.	Viaduct E (Pier E11) Ÿ The Contractor was reminded to place chemical container in drip tray. Ÿ The Contractor was reminded to clear general refuse in the skip.
16 August 2017	Southern Landfall Portion A (HKBCF Portion S-c) Ÿ Watering on exposed area should be applied more frequently. Ÿ Chemical labels should be provided to the chemical containers.	Southern Landfall Portion A (HKBCF Portion S-c) Ÿ The Contractor was reminded to apply watering on exposed area. Ÿ The Contractor was reminded to provide chemical labels to the chemical containers.
24 August 2017	Viaduct E (Pier E11) Ÿ Chemical container was observed not placed in drip tray. Ÿ Stagnant water was observed inside drip tray.	Viaduct E (Pier E11) Ÿ The Contractor was reminded to place chemical container in drip tray. Ÿ The Contractor was reminded to clear stagnant water inside drip tray.
31 August 2017	Viaduct E (Pier E4) Ÿ Chemical containers on the deck were observed not placed in drip tray. Ÿ General refuse should be cleared regularly. Southern Landfall Portion A (HKBCF Portion S-c) Ÿ General refuse should be cleared regularly.	Viaduct E (Pier E4) Ÿ The Contractor was reminded to place chemical containers on the deck in drip tray. Ÿ The Contractor was reminded to clear general refuse regularly. Southern Landfall Portion A (HKBCF Portion S-c) Ÿ The Contractor was reminded to clear general refuse regularly.

Inspection Date

Location & Environmental Observations

Recommendations/ Remarks

7 June 2017

Viaduct D (Pier D13)

Ÿ Accumulated general refuse should be cleared regularly.

Viaduct D (Pier D14)

Ÿ Drip tray under the generator was observed not well plugged.

Ramp D

Ÿ Chemical containers were observed not placed in drip tray.

Viaduct D (Pier D13)

Ÿ The Contractor was reminded to clear accumulated general refuse.

Viaduct D (Pier D14)

Ÿ The Contractor was reminded to plug drip tray under the generator.

Ramp D

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

14 June 2017

Southern Landfall Portion A (Portion S-b)

Ÿ Chemical containers were observed not placed in drip tray.

Ÿ Stagnant water inside drip tray nearby the chemical containers should be cleared.

Southern Landfall Portion A (Portion S-b)

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

Ÿ The Contractor was reminded to clear stagnant water inside drip tray nearby the chemical containers.

21 June 2017

Viaduct D (Pier D13)

Ÿ NRMM label should be displayed clearly on the generator.

Ÿ Stagnant water inside drip tray should be cleared.

Viaduct B (Pier B16)

Ÿ Exposed slope was observed not fully covered by tarpaulin.

Viaduct C (Pier C12)

Ÿ Exposed stockpile was observed not fully covered by tarpaulin.

Viaduct D (Pier D13)

Ÿ The Contractor was reminded to display NRMM label clearly on the generator.

Ÿ The Contractor was reminded to clear stagnant water inside drip tray.

Viaduct B (Pier B16)

Ÿ The Contractor was reminded to fully cover exposed slope by tarpaulin.

Viaduct C (Pier C12)

Ÿ The Contractor was reminded to fully cover exposed stockpile by tarpaulin.

29 June 2017

Viaduct E (Pier E6)

Ÿ Chemical containers were observed not placed in drip tray.

Ÿ Stagnant water inside drip tray should be cleared.

Viaduct E (Pier E10)

Ÿ Chemical containers were observed not placed in drip tray.

Viaduct E (Pier E16)

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

Ÿ The Contractor was reminded to clear stagnant water inside drip tray.

Viaduct E (Pier E10)

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

5 July 2017

Viaduct E (Pier E4)

Ÿ Chemical containers in the deck were observed not placed in drip tray.

Ÿ NRMM label should be provided on the generator.

Viaduct E (Pier E4)

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

Ÿ The Contractor was reminded to provide NRMM label on the generator.

12 July 2017

Southern Landfall Portion A (Portion S-c)

Ÿ Chemical container was observed not placed in drip tray.

Southern Landfall Portion A (Portion S-c)

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

19 July 2017

Viaduct E (Pier E12)

Ÿ General refuse should be cleared regularly.

Viaduct E (Pier E11)

Ÿ Chemical containers were observed not placed in drip tray.

Ÿ Air compressor was observed not fully placed in drip tray.

Viaduct E (Pier E12)

Ÿ The Contractor was reminded to clear general refuse regularly.

Viaduct E (Pier E11)

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

Ÿ The Contractor was reminded to fully place the air compressor in drip tray.

27 July 2017

Ramp C (Area I)

Ÿ Chemical containers on the deck were observed not placed in drip tray.

Ÿ General refuse should be cleared regularly.

Viaduct C (Pier C15)

Ÿ Stockpile was observed not being fully covered by tarpaulin.

Ramp D (Area I)

Ÿ Chemical containers were observed not placed in drip tray.

Ÿ Watering should be provided on unpaved road.

Ramp C (Area I)

Ÿ The Contractor was reminded to place chemical containers on the deck in drip tray.

Ÿ The Contractor was reminded to clear general refuse regularly.

Viaduct C (Pier C15)

Ÿ The Contractor was reminded to fully cover stockpile by tarpaulin.

Ramp D (Area I)

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

Ÿ The Contractor was reminded to provide watering on unpaved road.

2 August 2017

Viaduct B (Pier B16)

Ÿ General refuse in the skip should be cleared.

Viaduct B (Pier B11)

Ÿ Chemical containers in the deck were observed not placed in drip tray.

Viaduct B (Pier B16)

Ÿ The Contractor was reminded to clear general refuse in the skip.

Viaduct B (Pier B11)

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

9 August 2017

Viaduct E (Pier E11)

Ÿ Chemical container was observed not placed in drip tray.

Ÿ General refuse in the skip should be cleared.

Viaduct E (Pier E11)

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

Ÿ The Contractor was reminded to clear general refuse in the skip.

16 August 2017

Southern Landfall Portion A

(HKBCF Portion S-c)

Ÿ Watering on exposed area should be applied more frequently.

Ÿ Chemical labels should be provided to the chemical containers.

Southern Landfall Portion A

(HKBCF Portion S-c)

Ÿ The Contractor was reminded to apply watering on exposed area.

Ÿ The Contractor was reminded to provide chemical labels to the chemical containers.

24 August 2017

Viaduct E (Pier E11)

Ÿ Chemical container was observed not placed in drip tray.

Ÿ Stagnant water was observed inside drip tray.

Viaduct E (Pier E11)

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

Ÿ The Contractor was reminded to clear stagnant water inside drip tray.

31 August 2017

Viaduct E (Pier E4)

Ÿ Chemical containers on the deck were observed not placed in drip tray.

Ÿ General refuse should be cleared regularly.

Southern Landfall Portion A

(HKBCF Portion S-c)

Ÿ General refuse should be cleared regularly.

Viaduct E (Pier E4)

Ÿ The Contractor was reminded to place chemical containers on the deck in drip tray.

Ÿ The Contractor was reminded to clear general refuse regularly.

Southern Landfall Portion A

(HKBCF Portion S-c)

Ÿ The Contractor was reminded to clear general refuse regularly.

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

2.6 Waste Management Status

The Contractor has 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), recyclable materials, chemical waste and marine sediment. Reference has been made to the waste flow table prepared by the Contractor (Appendix K). The quantities of different types of wastes are summarized in Table 2.17.

Table 2.17 Quantities of Different Waste Generated in the Reporting Period

Month / Year	Inert Construction Waste (a) (m3)	Imported Fill (m3)		Inert Construction Waste Re-used (m3)		Non-inert Construction Waste (b) (kg)		Recyclable Materials (c) (kg)		Chemical Wastes (kg)		Marine Sediment (m3)
Month / Year	Inert Construction Waste (a) (m3)	Imported Fill (m3)		Inert Construction Waste Re-used (m3)		Non-inert Construction Waste (b) (kg)		Recyclable Materials (c) (kg)		Chemical Wastes (kg)		Category L	Category M
June 2017	4,394	0	98		148,600		63		0		0			0
July 2017	4,921	0	696		159,980		91		800		1,056			0
August 2017	3,897	0	0		159,230		56		0		0			0
Total	13,212	0	794		467,810		210		800		1,056			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.

2.7 Environmental Licenses and Permits

The status of environmental licensing and permit is summarized in Table 2.18 below.

License/ Permit	License or Permit No.	Date of Issue	Date of Expiry	License/ Permit Holder	Remarks
Environmental Permit	EP-353/2009/K	11-Apr-16	N/A	HyD	Hong Kong Boundary Crossing Facilities
Environmental Permit	EP-354/2009/D	13-Mar-15	N/A	HyD	Tuen Mun- Chek Lap Kok Link
Construction Dust Notification	361571	05-Jul-13	N/A	GCL
Construction Dust Notification	362093	17-Jul-13	N/A	GCL	For Area 23
Chemical Waste Registration	5213-951-G2380-17	12-Jun-14	N/A	GCL	Viaducts A, B, C, D & E
Chemical Waste Registration	5213-961-G2380-13	10-Oct-13	N/A	GCL	Chemical waste produced in Contract No. HY/2012/07 (Area 1 adjacent to Cheng Tung Road, Siu Ho Wan)
Chemical Waste Registration	5213-961-G2380-14	10-Oct-13	N/A	GCL	Chemical waste produced in Contract No. HY/2012/07 (Area 2 adjacent to Cheung Tung Road, Pak Mong Village)
Chemical Waste Registration	5213-974-G2588-03	04-Nov-13	N/A	GCL	Chemical waste produced in Contract No. HY/2012/07 (WA5 adjacent to Cheung Tung Road, Yam O)
Construction Waste Disposal Account	7017735	10-Jul-13	N/A	GCL	-
Construction Waste Disposal Account	7019470	03-Mar-14	N/A	GCL	Vessel CHIT Account
Waste Water Discharge License	WT00019017-2014	13-May-14	31-May-19	GCL	Discharge for marine portion
Waste Water Discharge License	WT00019018-2014	13-May-14	31-May-19	GCL	Discharge for land portion
Construction Noise Permit for night works and works in general holidays	GW-RW0708-16	20-Dec-16	18-Jun-17	GCL	General works at WA5
Construction Noise Permit for night works and works in general holidays	GW-RW0294-17	19-Jun-17	18-Dec-17	GCL	General works at WA5
Construction Noise Permit for night works and works in general holidays	GW-RS1309-16	20-Dec-16	19-Jun-17	GCL	Broad Permit for Whole Site Areas
Construction Noise Permit for night works and works in general holidays	GW-RS0540-17	20-Jun-17	15-Dec-17	GCL	Broad Permit for Whole Site Areas
Construction Noise Permit for night works and works in general holidays	GW-RS0408-17	11-May-17	30-Sep-17	GCL	Pre-casted pile cap shell installation at E8-E13
Construction Noise Permit for night works and works in general holidays	GW-RS0668-17	7-Aug-17	6-Feb-18	GCL	Pre-casted pile cap shell installation at E8-E13
Construction Noise Permit for night works and works in general holidays	GW-RS0456-17	31-May-17	31-Jul-17	GCL	Broad Permit for Segment Launching at Land Portion
Construction Noise Permit for night works and works in general holidays	GW-RS0639-17	31-Jul-17	29-Sep-17	GCL	Broad Permit for Segment Launching at Land Portion
Construction Noise Permit for night works and works in general holidays	GW-RS0688-17	17-Aug-17	31-Aug-17	GCL	Contingency plan for DN800T works at Tung Chung Seafront Road
Construction Noise Permit for percussive piling	PP-RS0010-17	12-Jun-17	15-Sep-17	GCL	Percussive piling at Portion A
Marine Dumping Permit	EP/MD/17-153	01-Jan-17	30-Jun-17	GCL	For dumping Type I sediment
Marine Dumping Permit	EP/MD/18-031	01-Jul-17	31-Dec-17	GCL	For dumping Type I sediment
Marine Dumping Permit	EP/MD/17-196	01-Jul-17	31-Jul-17	GCL	For dumping Type II sediment
Marine Dumping Permit	EP/MD/18-047	1-Aug-17	31-Aug-17	GCL	For dumping Type I and Type II sediment

([1]) Results of impact water quality monitoring were adopted from the published EM&A data of Contract No. HY/2010/02 HKBCF- Reclamation Works. Available at: http://www.hzmbenpo.com/

([2]) Agreement No. CE 35/2011 (EP) Baseline Environmental Monitoring for Hong Kong - Zhuhai - Macao Bridge Hong Kong Projects - Investigation. Baseline Environmental Monitoring Report (Version C). Submitted on 8 March 2012 and subsequently approved by EPD.

(1) Agreement No. CE 35/2011 (EP) Baseline Environmental Monitoring for Hong Kong - Zhuhai - Macao Bridge Hong Kong Projects - Investigation. Baseline Environmental Monitoring Report (Version C). Submitted on 8 March 2012 and subsequently approved by EPD.

([4]) Agreement No. CE 35/2011 (EP) Baseline Environmental Monitoring for Hong Kong - Zhuhai - Macao Bridge Hong Kong Projects - Investigation. Baseline Environmental Monitoring Report (Version C). Submitted on 8 March 2012 and subsequently approved by EPD.

([5]) The Proposal of Alternative Water Quality Monitoring Station with the verification letter from IEC was submitted to EPD on 31 March 2017, and subsequently replied with no objection on.6 April 2017.

([6]) Published EM&A data for impact water quality monitoring by Contract No. HY/2010/02 are available at: http://www.hzmbenpo.com/

([7]) Technical issues have been observed from impact monitoring of the Contract and thus published information is adopted from Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works.

([8]) The schedules for water quality monitoring for the period between June and July 2017 could be referred to the published Monthly EM&A Reports of Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works. Available at http://www.hzmbenpo.com/

([9]) Published EM&A data for impact water quality monitoring by Contract No. HY/2010/02 are available at: http://www.hzmbenpo.com/

([10]) Technical issues have been observed from impact monitoring of the Contract and thus published information is adopted from Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works.

([11]) Proposal on the changes of transect lines for dolphin monitoring was approved by EPD on

28 July 2017 (Reference number: (19) in EP2/G/A/129 Pt. 8).

Station	Baseline Mean		Ambient Mean (a)		Quarterly Mean (June to August 2017)
	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood
CS(Mf)3(N)	9.2	12.8	12.0	16.6	6.3	7.6
CS(Mf)5	9.2	11.5	11.9	14.9	6.0	5.3
SR4/SR4(N)	10.3	12.3	13.4	16.0	7.8	9.3
SR4a	9.1	9.8	11.9	12.7	9.2	9.9
IS8	11.3	13.5	14.6	17.6	6.9	8.3
IS(Mf)9	10.9	14.3	14.2	18.5	6.6	7.4
IS(Mf)16	11.4	10.3	14.8	13.4	7.6	6.1
Notes:
(a) Ambient mean value is defined as a 30% increase of the baseline mean value (b) Water Quality Monitoring Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2 May 2017.

TABLE OF CONTENTS

Executive Summary

1 Introduction

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

1.2 Scope of Report

This is the Fifteenth Quarterly EM&A Report under the Contract No. HY/2012/07 Tuen Mun – Chek Lap Kok Link – Southern Connection Viaduct Section. This report presents a summary of the environmental monitoring and audit works from 1 June to 31 August 2017.

The construction phase of the Contract commenced on 31 October 2013. The rolling construction programme for the period of June to August 2017 is shown in Appendix B.

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

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

2 EM&A RESULTS

2.1.1 Monitoring Requirements and Equipment

2.1.2 Action & Limit Levels

2.1.3 Monitoring Schedule for the Reporting Quarter

2.1.4 Results and Observations

2.2.1 Monitoring Requirements and Equipment

2.2.2 Action and Limit Levels

2.2.3 Monitoring Schedule for the Reporting Quarter

2.2.4 Results and Observations

A total of 18 monitoring events were undertaken in the reporting period with no Action Level and Limit Level exceedance recorded at the monitoring station in the reporting period. No action is thus required to be undertaken in accordance with the Event Action Plan presented in Appendix J.

Major noise sources during the noise monitoring included construction activities, nearby construction works, insect noise and nearby traffic noise and aircraft noise.

2.3.1 Monitoring Requirements and Equipment

2.3.2 Action & Limit Levels

The Action and Limit Levels of the water quality monitoring are provided in Appendix D.

2.3.3 Monitoring Schedule for the Reporting Quarter

2.3.4 Results and Observations

Results of water quality monitoring between 1 June 2017 and 31 July 2017 were adopted from the published EM&A data of Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works ([9]) ([10]).

2.4.1 Monitoring Requirements

2.4.2 Monitoring Equipment

2.4.3 Monitoring Parameter, Frequencies & Duration

2.4.4 Monitoring Location

2.4.5 Action & Limit Levels

2.4.6 Monitoring Schedule for the Reporting Period

2.4.7 Results & Observations

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2017.

During this quarter of dolphin monitoring, no unacceptable impact from the activities of this Contract on Chinese White Dolphins was noticeable from the general observations.

2.4.8 Marine Mammal Exclusion Zone Monitoring

2.5 EM&A Site Inspection

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

2.6 Waste Management Status

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

2.7 Environmental Licenses and Permits

In response to the site audit findings, the Contractor has carried out corrective actions.

A summary of the Environmental Mitigation and Enhancement Measure Implementation Schedules (EMIS) is presented in Appendix C. The necessary mitigation measures were implemented properly for this Contract.

Results for 1-hour TSP, 24-hour TSP and construction noise monitoring complied with the Action/ Limit levels in the reporting period.

The Environmental Complaint Handling Procedure is provided in Figure 2.6.

3 Future Key Issues

As informed by the Contractor, the major works for the Contract in the coming quarter are summarized below:

3.2 Key Issues for the Coming Quarter

4 Conclusions and recommendations