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-145/2009), an Environmental Permit (EP-354/2009) for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4 November 2009, and EP variation (VEP) (EP-354/2009A) was issued on 8 December 2010. Another application for VEP (EP-354/2009/B) was granted on 28 January 2014.

Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A. ENVIRON Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).

Layout of the Contract components is presented in Figure 1.1.

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

1.2 Scope of Report

This is the First Quarterly EM&A Report under the Contract No. HY/2012/08 Tuen Mun – Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section. This report presents a summary of the environmental monitoring and audit works from 1 November 2013 to 28 February 2014.

1.3 Organization Structure

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

Table 1.1 Contact Information of Key Personnel

Party	Position	Name	Telephone	Fax
Highways Department	Engr 16/HZMB	Kenneth Lee	2762 4996	3188 6614
SOR (AECOM Asia Company Limited)	Chief Resident Engineer	Edwin Ching Andrew Westmoreland	2450 3111 2450 3511	2450 3099 2450 3099
ENPO / IEC (ENVIRON Hong Kong Ltd.)	ENPO Leader	Y.H. Hui	3465 2888	3465 2899
ENPO / IEC (ENVIRON Hong Kong Ltd.)	IEC	F. C. Tsang	3465 2828	3465 2899
Contractor (Dragages – Bouygues Joint Venture)	Environmental Manager	C.F. Kwong	2293 7322	2670 2798
Contractor (Dragages – Bouygues Joint Venture)	Environmental Officer 24-hour complaint hotline	Bryan Lee Rachel Lam	2293 7323 2293 7342	2670 2798
ET (ERM-HK)	ET Leader	Jovy Tam	2271 3113	2723 5660

1.4 Summary of Construction Works

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

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

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

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

Table 1.2 Summary of Construction Activities Undertaken during the Reporting Period

Construction Activities Undertaken
Marine-based Works
· Dredging
· Removal of existing seawall
· Placement of rock grade 400
· Delivery of 1,946 seawall blocks
· Vertical seawall construction
· Sloping seawall construction
· Marine sheet piling for box culvert extension
· Predrilling for box culvert foundation
· Temporary pontoon installation at River Trade Terminal (RTT)
Land-based Works
Site WA 23
· Sorting of rock material
Site WA 18
· Completion of chain-link fence, site hoarding works, site formation works
· Site office structural works
· Temporary outdoor substation civil works
· Site office construction
Portion N6
· CLP Substation Superstructure
· CLP Substation Footing & underground utilities works
· CLP Substation structure works
· CLP Substation E&M works

Figure 1.2 Locations of Construction Activities – November 2013 to February 2014

Tuen Mun – Land-based and Marine-based Works Area

Land-based Works at Site WA-23

Tsing Yi – Site WA-23

2 EM&A Results

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

2.1 Air quality

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

2.1.1 Monitoring Requirements and Equipment

In accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times 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.

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

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

Monitoring Station	Location	Description	Parameters & Frequency	Monitoring Dates
ASR1	Tuen Mun Fireboat Station	Office	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	2, 7, 13, 19, 25 and 29 November 2013; 5, 11, 17, 23 and 28 December 2013; 3, 9, 15, 21, 27 and 30 January 2014; 5, 8, 12, 18, 24, and 28 February 2014
ASR5	Pillar Point Fire Station	Office
AQMS1	Previous River Trade Golf	Bare ground
AQMS2/ASR6*	Bare ground at Ho Suen Street/ Butterfly Beach Laundry*	Bare ground/ Office
ASR10	Butterfly Beach Park	Recreational uses
* Notes:
AQMS2 was relocated and HVS was re-installed at ASR6 (Butterfly Beach Laundry) on 17 January 2014. AQMS2 was then superseded by ASR6 for the impact air quality monitoring. Impact air quality monitoring at ASR6 commenced on 21 January 2014.

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 Anemometer	MetPak, WindSonic (Wind Direction: WE570; Wind Speed Sensor: WE550)

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 Anemometer

MetPak, WindSonic (Wind Direction: WE570; Wind Speed Sensor: WE550)

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 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.

2.1.4 Results and Observations

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

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

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

Month/Year	Station	Average (µg/m³)	Range (µg/m³)	Action Level (µg/m³)	Limit Level (µg/m³)
November 2013 to February 2014	ASR 1	202	56 - 474	331	500
	ASR 5	224	43 - 559	340	500
	AQMS1	173	48 - 431	335	500
	AQMS2/ASR6	201	56 - 425	338	500
	ASR10	154	46 - 645	337	500

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

Month/Year	Station	Average (µg/m³)	Range (µg/m³)	Action Level (µg/m³)	Limit Level (µg/m³)
November 2013 to February 2014	ASR 1	124	32 - 249	213	260
	ASR 5	142	39 - 258	238	260
	AQMS1	124	40 - 228	213	260
	AQMS2/ASR6	134	38 - 269	238	260
	ASR10	90	34 - 166	214	260

In this reporting period, a total of twenty-three monitoring events were undertaken in which twenty-one Action Level exceedances and two Limit Level exceedances for 1-hr TSP; five Action Level exceedances and one Limit Level exceedance for 24-hr TSP were recorded in ten air quality monitoring events.

Meteorological information collected at the ASR5, including wind speed and wind direction, is provided in Appendix G. Meteorological data between 4 and 14 February 2014 is not available due to power failure.

2.2 Water Quality Monitoring

The baseline water quality monitoring undertaken by the Hong Kong – Zhuhai – Macao Bridge Hong Kong Projects (HKZMB) between 6 and 31 October 2011 has included all monitoring stations for the Project. Thus, the baseline monitoring results and Action/Limit Level presented in HKZMB Baseline Monitoring Report ([2]) are adopted for this Project.

2.2.1 Monitoring Requirements & Equipment

In accordance with the Updated EM&A Manual, impact water quality monitoring was carried out three days per week during the construction period at nine (9) water quality monitoring stations (Figure 2.2; Table 2.5).

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

Station ID	Type	Coordinates		*Parameters, unit	Depth	Frequency
		Easting	Northing
IS12	Impact Station	813218	823681	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.
IS13	Impact Station	813667	824325
IS14	Impact Station	812592	824172
IS15	Impact Station	813356	825008
CS4	Control / Far Field Station	810025	824004
CS6	Control / Far Field Station	817028	823992
SR8	Sensitive receiver (Gazettal beaches in Tuen Mun)	816306	825715
SR9	Sensitive receiver (Butterfly Beach)	813601	825858
SR10A	Sensitive receiver (Ma Wan FCZ)	823741	823495
*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.

Table 2.6 summarizes the equipment used in the impact water quality monitoring programme.

Table 2.6 Water Quality Monitoring Equipment

Equipment	Model	Qty.
Water Sampler	Kahlsico Water-Bottle Model 135DW 150	1
Dissolved Oxygen Meter	YSI Pro 2030	1
pH Meter	HANNA HI 8314	1
Turbidity Meter	HACH 2100Q	1
Monitoring Position Equipment	“Magellan” Handheld GPS Model eXplorist GC	4
Monitoring Position Equipment	DGPS Koden KGP913MK2 ⁽¹⁾	1

2.2.2 Action & Limit Levels

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

2.2.3 Monitoring Schedule for the Reporting Period

The schedules for water quality monitoring in the reporting period are provided in Appendix E.

2.2.4 Results and Observations

During this reporting period, marine dredging activities were undertaken at Portions N-A and N-B, but no dredging was undertaken on 31 January 2014. A closed grab dredger was used and silt curtains (cage-type and single floating type) were deployed during dredging works in accordance with the EP. The level of dredging activities was within the working rate described in the EP and the approved EIA Report. It is useful to note that heavy marine traffic (not associated with the Project) was commonly observed nearby the Project site and its vicinity.

Impact water quality monitoring was conducted at all designated monitoring stations in the reporting period under favourable weather conditions. Monitoring results are presented graphically in Appendix H and detailed impact water quality monitoring data were reported in the First to Fourth Monthly EM&A Report.

In this reporting period, a total of fifty-one monitoring events were undertaken in which five Action Level exceedances for depth-averaged SS were recorded in two monitoring events.

2.3 Dolphin Monitoring

2.3.1 Monitoring Requirements

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

2.3.2 Monitoring Equipment

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

Table 2.7 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

2.3.3 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	814577	13	Start Point	816506	819480
1	End Point	804671	831404	13	End Point	816506	824859
2	Start Point	805475	815457	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	820690	19	Start Point	822513	823268
7	End Point	810499	824613	19	End Point	822513	824321
8	Start Point	811508	820847	20	Start Point	823477	823402
8	End Point	811508	824254	20	End Point	823477	824613
9	Start Point	812516	820892	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	818449	23	Start Point	814559	821739
11	End Point	814556	820992	23	End Point	814559	824768
12	Start Point	815542	818807
12	End Point	815542	824882

2.3.5 Action & Limit Levels

The action and limit levels of dolphin impact monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix J.

2.3.6 Monitoring Schedule for the Reporting Period

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

2.3.7 Results & Observations

A total of 1137.92 km of survey effort was collected, with 95.0% of the total survey effort being conducted under favourable weather conditions (ie Beaufort Sea State 3 or below with good visibility) in this reporting quarter. Amongst the two areas, 428.91 km and 709.01 km of survey effort were collected from NEL and NWL survey areas, respectively. The total survey effort conducted on primary and secondary lines were 852.63 km and 285.29 km, respectively. The survey efforts are summarized in Appendix I.

A total of 59 groups of 249 Chinese White Dolphin sightings were recorded during the two sets of surveys in this reporting quarter. All except four sightings were made during on-effort search. Fifty on-effort sightings were made on primary lines, while five other on-effort sightings were made on secondary lines. During this reporting quarter, only three groups of 16 dolphins were sighted in NEL, while the other 56 groups of 233 dolphins were sighted NWL.

For the detailed comparison of dolphin occurrence and usage of NEL and NWL survey area between the impact phase and baseline phase monitoring, only the quarterly data of December 2013 – February 2014 from the impact phase monitoring was used in the present report to tally with the three-month period of baseline monitoring (September – November 2011).

Encounter rates of Chinese White Dolphins are deduced from the survey effort and on-effort sighting data made under favourable conditions (Beaufort 3 or below with good visibility) in the reporting quarter with the results 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: Dec 5^th/9^th	2.68	8.05
	Set 2: Dec 13^th/19^th	0.0	0.0
	Set 3: Jan 7^th/9^th	0.0	0.0
	Set 4: Jan 21^st/23^rd	0.0	0.0
	Set 5: Feb 6^th/12^th	0.0	0.0
	Set 6: Feb 14^th/20^th	0.0	0.0
NWL	Set 1: Dec 5^th/9^th	6.95	30.57
	Set 2: Dec 13^th/19^th	6.82	27.27
	Set 3: Jan 7^th/9^th	10.00	39.99
	Set 4: Jan 21^st/23^rd	11.84	50.33
	Set 5: Feb 6^th/12^th	7.44	17.86
	Set 6: Feb 14^th/20^th	6.20	29.47

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

Table 2.10 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)
	December 2013 – February 2014	September 2011 – November 2011	December 2013 – February 2014	September 2011 – November 2011
Northeast Lantau	0.45 ± 1.10	6.00 ± 5.05	1.34 ± 3.29	22.19 ± 26.81
Northwest Lantau	8.21 ± 2.21	9.85 ± 5.85	32.58 ± 11.21	44.66 ± 29.85

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

Table d 4.6

Group size of Chinese White Dolphins ranged from 1 - 12 individuals per group in North Lantau region during December 2013 to February 2014. 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 2.11.

Table 2.11 Average Dolphin Group Size

	Average Dolphin Group Size
	December 2013 – February 2014	September 2011 – November 2011
Overall	0.45 ± 1.10	6.00 ± 5.05
Northeast Lantau	8.21 ± 2.21	9.85 ± 5.85
Northwest Lantau	0.45 ± 1.10	6.00 ± 5.05

During this month of dolphin monitoring, no unacceptable impact from the construction activities of this Contract was recorded from the general observations.

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

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

2.3.8 Marine Mammal Exclusion Zone Monitoring

Daily 250 m marine mammal exclusion zone monitoring was undertaken during the period of dredging activities under this Contract. One sighting of the Indo-Pacific humpback dolphin (i.e. Chinese White Dolphin) Sousa chinensis was recorded on 20 February 2014 during the exclusion zone monitoring. The dolphin group of three was sighted within the 250 m marine mammal exclusion zone from a dredging barge sighting platform by the marine mammal observer. The marine dredging work was subsequently suspended until the observer has confirmed that the area is continuously clear of dolphin for a period of 30 minutes. The Dolphin Intrusion Report is presented in Appendix J of the Forth Monthly EM&A Report.

2.4 Coral Monitoring

The first quarterly Coral Post-Translocation Monitoring was conducted on 17 January 2014 and the results were provided in the First Quarterly Post-Translocation Coral Monitoring Report.

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. Seventeen (17) site inspections were carried out in the reporting quarter on 5, 12, 20, 27 November 2013; 4, 10, 18, 24 and 31 December 2013; 7, 14, 22 and 29 January 2014; 5, 11, 19 and 26 February 2014.

Key observations during the site inspections in this reporting period are summarized in Table 2.12.

Table 2.12 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Period

Inspection Date	Environmental Observations	Recommendations/ Remarks
5 November 2013	Portion N-A · Floating Type Silt Curtain was not deployed properly	Portion N-A · The Contractor secured the floating type silt curtain as recommended.
Dredging barge · Oily floor on dredging barge · Label on chemical container was missing and they were placed at secured area. · Black smoke was observed when dredger was under operation	Dredging barge · The Contractor cleaned the oily floor by appropriate chemical absorbance · The Contractor placed the chemical containers at the secured area with proper label. · The Contractor was reminded to maintain the plants regularly.
12 November 2014	Site WA-23	Site WA-23
· Residual sandy materials were found leaving at the edge of loading area	· The Contractor was reminded to clean up the residual sandy material nearby at the loading area at site WA 23 upon completion of sandy materials transfer.
· The Contract was reminded to cover the temporary stockpiles at site WA 23 properly when piling is completed.	· The Contract covered the temporary stockpiles at site WA 23.
Site WA-18	Site WA-18
· Drip tray stopper was found missing and stagnant of water was found in the drip tray.	· The Contractor was reminded to ensure the trip tray is sealed and clean up the stagnant water.
20 November 2013	Barge - GD1 · Sediment flow was observed outside the cage-type silt curtain in the dredging site Site WA-18 · Several oil drums was observed without chemical labels · Sandy materials were observed near the drainage area.	Barge - GD1 · The Contractor was reminded to regularly check the silt curtain to prevent sediment outflow into the sea. Site WA-18 · The contractor was reminded to provide chemical labels for the oil drums · Bunds should be provided to avoid sediment runoff
27 November 2013	Barge - GD1 · Oil stain was observed on the barge · Drip tray should be provided for the chemical containers. Site WA-23 · EP should be displayed conspicuously in the site entrance.	Barge - GD1 · The Contractor was reminded to regularly check for oil leakage and proper maintenance. · The Contractor was reminded to provide drip tray for the chemical containers.
Site WA-23 · The Contractor was reminded to display EP conspicuously in the site entrance.
4 December 2013	Barge - Crown Asia 1 · A proper chemical waste container with good conditions and capacity should be provided.	Barge - Crown Asia 1 · The contractor was reminded to provide a proper chemical waste container with adequate capacity and to maintain in good conditions.
10 December 2013	Barge – Wing Ko · Oil stain was observed, drip tray should be provided for the chemical containers Portion N-A · Silt curtain was found damaged.	Barge – Wing Ko · The contractor was reminded to clean up the oil stain as chemical waste and provide drip tray for the chemical containers. Portion N-A · The contractor was reminded to repair the damaged silt curtain to maintain efficiency.
18 December 2013	Barge – Crown Asia 1 · Drip tray should be maintained with adequate capacity to avoid oil spillage. Any oil spill observed should be cleaned up probably as chemical waste.	Barge – Crown Asia 1 · The contractor was reminded to regularly check the efficiency of drip tray and clean up the oil stain.
24 December 2013	Barge - Crown Asia 1 · Cage-type silt curtain was nor deployed properly and found broken. · Dredging grab was found leaking remarkable. Site WA-18 · Sandy materials were exposed over the ground without proper cleanup.	Barge - Crown Asia 1 · The Contractor was required to conduct immediate maintenance of the silt curtain and deploy it properly. · The Contractor was reminded to conduct regular check and maintenance on the dredging grab. · The Contractor was reminded to drip off the excessive muddy water within the cage-type silt curtain before loading the marine sediments to the hover barge. Site WA-18 · The Contractor was reminded to clean up the area of dust nuisance regularly and frequent watering on exposed ground.
31 December 2013	Site WA-23 · A proper tree protection zone should be set up to avoid disturbance to the remaining natural habitat. · Oil stain was observed near the drip tray for the chemical containers. The chemical container was observed without drip tray and labels. Site WA-18 · The Contractor was reminded to provide the drip tray plug and maintain the capacity of drip trays for the chemical containers	Site WA-23 · The Contractor was reminded to maintain the tree protection zone properly. · The Contractor was reminded to clean up stained soil as chemical waste · The Contractor was reminded to provide drip tray and label for the chemical container. Site WA-18 · The Contractor was reminded to regularly check and maintain the capacity of drip trays to avoid spillage.
7 January 2014	Portion N-A · The Contractor was reminded to tie the silt curtain to the existing sloping seawall. Portion N6 · Water spraying should be applied with breaking works to avoid dust generation. · The idle exposed stockpile should be fully covered by tarpaulin. · Cut-off drain should be provided at the site entrance to avoid silty water runoff.	Portion N-A · The Contractor was reminded to regularly check for maintenance of the silt curtain. Portion N6 · The Contractor was reminded to implement watering regularly throughout the site area. · The Contractor was reminded to cover the stockpile while not in use. · The Contractor was reminded to provide measures for silty water runoff.
14 January 2014	Barge - Crown Asia 1 · Materials other than chemical containers should be removed from the drip tray and chemical labels should be provided. · Dark smoke was observed at the dredger. Portion N6 · The Contractor was reminded to regularly check and maintain the cut-off drain to avoid water runoff. Site WA-18 · Dusty materials on the paved road should be cleared to avoid dust generation.	Barge - Crown Asia 1 · The Contractor was reminded to tidy up the drip tray area and provide chemical labels for the chemical containers. · The Contractor was reminded to regularly maintain the dredger to control dark smoke emission. Portion N6 · The Contractor was reminded to clear the sandy materials in the cut-off drain. Site WA-18 · The Contractor was reminded to clear the dusty materials on the ground.
22 January 2014	Portion N6 · Exposed slopes should be fully covered by tarpaulin. · Chemical labels should be provided to the chemical containers. Site WA-18 · Waste materials should be cleared regularly and to maintain site tidiness.	Portion N6 · The Contractor was reminded to cover the exposed slopes with tarpaulin. · The Contractor was reminded to provide chemical labels to the chemical containers. Site WA-18 · The Contractor was reminded to regularly clear the waste materials and provision of site cleanliness.
29 January 2014	Site WA-18 · C&D waste materials should be properly sorted out for recycling.	Site WA-18 · The Contractor was reminded to regularly sort out C&D waste materials before disposal.
5 February 2014	Barge - Tai Hip 2 · Drip tray should be provided to the oil drum to avoid chemical spillage.	Barge - Tap Hip 2 · The Contractor was reminded to provide drip tray for the oil drum and regular maintenance for the drip tray.
11 February 2014	Barge - Tai Hip 2 · Chemical labels should be provided to the oil drum and the drip tray for the winch should be maintained regularly to avoid oil spillage Barge - Crown Asia 1 · Excess sandy materials should be cleared from the decks and exposed fittings of the barge.	Barge - Tap Hip 2 · The Contractor was reminded to regularly clear the oily liquid from the drip tray and provide labels for all chemical containers. Barge - Crown Asia 1 · The Contractor was reminded to regularly clean the decks to avoid sediment runoff.
19 February 2014	Barge – Crown Asia 1 · Drip tray for the oil gun should be maintained and the oil gun should be properly stored while not in use. · Chemical containers should be properly stored in the drip tray Portion N6 · Stockpile not in use should be fully covered · Chemical labels should be provided to the oil drum.	Barge – Crown Asia 1 · The Contractor was reminded to maintain the capacity of drip trays regularly and store the oil gun properly while not in use. · The Contractor was reminded to provide drip trays for the chemical containers Portion N6 · The Contractor was reminded to fully cover the exposed stockpile. · The Contractor was reminded to provide chemical labels for the oil drum.
26 February 2014	Barge - Sun Leung Kee 13 · Sheet piling driving machine should be maintained regularly and the oil stain should be cleared as chemical waste.	Barge - Sun Leung Kee 13 · The Contractor was reminded to check the sheet piling driving machine to prevent oil spill and clean up the oil stain as chemical waste.

Inspection Date

Environmental Observations

Recommendations/ Remarks

5 November 2013

Portion N-A

· Floating Type Silt Curtain was not deployed properly

Portion N-A

· The Contractor secured the floating type silt curtain as recommended.

Dredging barge

· Oily floor on dredging barge

· Label on chemical container was missing and they were placed at secured area.

· Black smoke was observed when dredger was under operation

Dredging barge

· The Contractor cleaned the oily floor by appropriate chemical absorbance

· The Contractor placed the chemical containers at the secured area with proper label.

· The Contractor was reminded to maintain the plants regularly.

12 November 2014

Site WA-23

· Residual sandy materials were found leaving at the edge of loading area

· The Contractor was reminded to clean up the residual sandy material nearby at the loading area at site WA 23 upon completion of sandy materials transfer.

· The Contract was reminded to cover the temporary stockpiles at site WA 23 properly when piling is completed.

· The Contract covered the temporary stockpiles at site WA 23.

Site WA-18

· Drip tray stopper was found missing and stagnant of water was found in the drip tray.

· The Contractor was reminded to ensure the trip tray is sealed and clean up the stagnant water.

20 November 2013

Barge - GD1

· Sediment flow was observed outside the cage-type silt curtain in the dredging site

Site WA-18

· Several oil drums was observed without chemical labels

· Sandy materials were observed near the drainage area.

Barge - GD1

· The Contractor was reminded to regularly check the silt curtain to prevent sediment outflow into the sea.

Site WA-18

· The contractor was reminded to provide chemical labels for the oil drums

· Bunds should be provided to avoid sediment runoff

27 November 2013

Barge - GD1

· Oil stain was observed on the barge

· Drip tray should be provided for the chemical containers.

Site WA-23

· EP should be displayed conspicuously in the site entrance.

Barge - GD1

· The Contractor was reminded to regularly check for oil leakage and proper maintenance.

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

Site WA-23

· The Contractor was reminded to display EP conspicuously in the site entrance.

4 December 2013

Barge - Crown Asia 1

· A proper chemical waste container with good conditions and capacity should be provided.

Barge - Crown Asia 1

· The contractor was reminded to provide a proper chemical waste container with adequate capacity and to maintain in good conditions.

10 December 2013

Barge – Wing Ko

· Oil stain was observed, drip tray should be provided for the chemical containers

Portion N-A

· Silt curtain was found damaged.

Barge – Wing Ko

· The contractor was reminded to clean up the oil stain as chemical waste and provide drip tray for the chemical containers.

Portion N-A

· The contractor was reminded to repair the damaged silt curtain to maintain efficiency.

18 December 2013

Barge – Crown Asia 1

· Drip tray should be maintained with adequate capacity to avoid oil spillage. Any oil spill observed should be cleaned up probably as chemical waste.

Barge – Crown Asia 1

· The contractor was reminded to regularly check the efficiency of drip tray and clean up the oil stain.

24 December 2013

Barge - Crown Asia 1

· Cage-type silt curtain was nor deployed properly and found broken.

· Dredging grab was found leaking remarkable.

Site WA-18

· Sandy materials were exposed over the ground without proper cleanup.

Barge - Crown Asia 1

· The Contractor was required to conduct immediate maintenance of the silt curtain and deploy it properly.

· The Contractor was reminded to conduct regular check and maintenance on the dredging grab.

· The Contractor was reminded to drip off the excessive muddy water within the cage-type silt curtain before loading the marine sediments to the hover barge.

Site WA-18

· The Contractor was reminded to clean up the area of dust nuisance regularly and frequent watering on exposed ground.

31 December 2013

Site WA-23

· A proper tree protection zone should be set up to avoid disturbance to the remaining natural habitat.

· Oil stain was observed near the drip tray for the chemical containers. The chemical container was observed without drip tray and labels.

Site WA-18

· The Contractor was reminded to provide the drip tray plug and maintain the capacity of drip trays for the chemical containers

Site WA-23

· The Contractor was reminded to maintain the tree protection zone properly.

· The Contractor was reminded to clean up stained soil as chemical waste

· The Contractor was reminded to provide drip tray and label for the chemical container.

Site WA-18

· The Contractor was reminded to regularly check and maintain the capacity of drip trays to avoid spillage.

7 January 2014

Portion N-A

· The Contractor was reminded to tie the silt curtain to the existing sloping seawall.

Portion N6

· Water spraying should be applied with breaking works to avoid dust generation.

· The idle exposed stockpile should be fully covered by tarpaulin.

· Cut-off drain should be provided at the site entrance to avoid silty water runoff.

Portion N-A

· The Contractor was reminded to regularly check for maintenance of the silt curtain.

Portion N6

· The Contractor was reminded to implement watering regularly throughout the site area.

· The Contractor was reminded to cover the stockpile while not in use.

· The Contractor was reminded to provide measures for silty water runoff.

14 January 2014

Barge - Crown Asia 1

· Materials other than chemical containers should be removed from the drip tray and chemical labels should be provided.

· Dark smoke was observed at the dredger.

Portion N6

· The Contractor was reminded to regularly check and maintain the cut-off drain to avoid water runoff.

Site WA-18

· Dusty materials on the paved road should be cleared to avoid dust generation.

Barge - Crown Asia 1

· The Contractor was reminded to tidy up the drip tray area and provide chemical labels for the chemical containers.

· The Contractor was reminded to regularly maintain the dredger to control dark smoke emission.

Portion N6

· The Contractor was reminded to clear the sandy materials in the cut-off drain.

Site WA-18

· The Contractor was reminded to clear the dusty materials on the ground.

22 January 2014

Portion N6

· Exposed slopes should be fully covered by tarpaulin.

· Chemical labels should be provided to the chemical containers.

Site WA-18

· Waste materials should be cleared regularly and to maintain site tidiness.

Portion N6

· The Contractor was reminded to cover the exposed slopes with tarpaulin.

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

Site WA-18

· The Contractor was reminded to regularly clear the waste materials and provision of site cleanliness.

29 January 2014

Site WA-18

· C&D waste materials should be properly sorted out for recycling.

Site WA-18

· The Contractor was reminded to regularly sort out C&D waste materials before disposal.

5 February 2014

Barge - Tai Hip 2

· Drip tray should be provided to the oil drum to avoid chemical spillage.

Barge - Tap Hip 2

· The Contractor was reminded to provide drip tray for the oil drum and regular maintenance for the drip tray.

11 February 2014

Barge - Tai Hip 2

· Chemical labels should be provided to the oil drum and the drip tray for the winch should be maintained regularly to avoid oil spillage

Barge - Crown Asia 1

· Excess sandy materials should be cleared from the decks and exposed fittings of the barge.

Barge - Tap Hip 2

· The Contractor was reminded to regularly clear the oily liquid from the drip tray and provide labels for all chemical containers.

Barge - Crown Asia 1

· The Contractor was reminded to regularly clean the decks to avoid sediment runoff.

19 February 2014

Barge – Crown Asia 1

· Drip tray for the oil gun should be maintained and the oil gun should be properly stored while not in use.

· Chemical containers should be properly stored in the drip tray

Portion N6

· Stockpile not in use should be fully covered

· Chemical labels should be provided to the oil drum.

Barge – Crown Asia 1

· The Contractor was reminded to maintain the capacity of drip trays regularly and store the oil gun properly while not in use.

· The Contractor was reminded to provide drip trays for the chemical containers

Portion N6

· The Contractor was reminded to fully cover the exposed stockpile.

· The Contractor was reminded to provide chemical labels for the oil drum.

26 February 2014

Barge - Sun Leung Kee 13

· Sheet piling driving machine should be maintained regularly and the oil stain should be cleared as chemical waste.

Barge - Sun Leung Kee 13

· The Contractor was reminded to check the sheet piling driving machine to prevent oil spill and clean up the oil stain as chemical waste.

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

2.6 Waste Management Status

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

Wastes generated during this reporting period include mainly construction wastes (inert and non-inert), imported fill, recyclable materials, chemical wastes and marine sediments. Reference has been made to the waste flow table prepared by the Contractor (Appendix L). The quantities of different types of wastes are summarized in Table 2.13.

Table 2.13 Quantities of Different Waste Generated in the Reporting Period

Month/Year	Inert Construction Waste ^(a) (tonnes)	Imported Fill (tonnes)	Inert Construction Waste Re-used (tonnes)	Non-inert Construction Waste ^(b) (tonnes)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)	Marine Sediment (m³)
Month/Year	Inert Construction Waste ^(a) (tonnes)	Imported Fill (tonnes)	Inert Construction Waste Re-used (tonnes)	Non-inert Construction Waste ^(b) (tonnes)	Recyclable Materials ^(c) (kg)	Chemical Wastes (kg)	Category L	Category M
November 2013	2,835	47,449	0	152	130	0	21,100	13,200
December 2013	883	204,421	0	12	130	0	40,500	5,000
January 2014	9,012	310,256	0	45	130	0	34,000	12,500
February 2014	0	219,319	0	28	0	20	18,500	24,500
Total	12,730	781,445	0	237	390	20	114,100	55,200
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 2.14 below.

Table 2.14 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/A	8 December 2010	Throughout the Contract	HyD	Tuen Mun-Chek Lap Kok Link
Environmental Permit	EP-354/2009/B	28 January 2014	Throughout the Contract	HyD	Application for VEP on 20 January 2014 to replace EP-354/2009/A
Construction Dust Notification	363510	19 August 2013	Throughout the Contract	DBJV	-
Chemical Waste Registration	5213-422-D2516-01	10 September 2013	Throughout the Contract	DBJV	-
Construction Waste Disposal Account	7018108	19 August 2013	Throughout the Contract	DBJV	Waste disposal in Contract HY/2012/08
Waste Water Discharge License	WT00017707-2013	18 November 2013	30 November 2018	DBJV	Discharge of Construction Runoff
Construction Noise Permit	GW-RW0691-13	15 October 2013	14 April 2014	DBJV	For Dredging and Reclamation Works
Construction Noise Permit	GW-RW0035-13	27 January 2014	26 July 2014	DBJV	For Dredging and Reclamation Works, superseded by GW-RW0095-14 on 10 Feb 2014
Construction Noise Permit	GW-RW0095-14	10 February 2014	9 August 2014	DBJV	For Dredging and Reclamation Works
Construction Noise Permit	GW-RW0822-13	14 November 2013	10 May 2014	DBJV	For works in site WA18
Construction Noise Permit	GW-RS0814-13	15 November 2013	10 May 2014	DBJV	For works in site WA23
Construction Noise Permit	GW-RW0029-14	27 January 2014	26 July 2014	DBJV	For Portion N6, superseded by GW-RW0077-14 on 17 Feb 2014
Construction Noise Permit	GW-RW0077-14	17 February 2014	16 August 2014	DBJV	For Portion N6
Marine Dumping Permit	EP/MD/14-072	1 November 2013	30 April 2014	DBJV	For Type 1
Marine Dumping Permit	EP/MD/14-071	1 December 2013	31 December 2013	DBJV	For Type 1 (dedicated site) and Type 2
Marine Dumping Permit	EP/MD/14-108	1 January 2014	31 January 2014	DBJV	For Type 1 (dedicated site) and Type 2
Marine Dumping Permit	EP/MD/14-124	1 February 2014	28 February 2014	DBJV	For Type 1 (Dedicated site) and Type 2
Notes:
HyD = Highways Department DBJV = Dragages – Bouygues Joint Venture VEP = Variation of Environmental Permit

2.8 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.

2.9 Summary of Exceedances of the Environmental Quality Performance Limit

For air quality impact monitoring, a total of twenty-three monitoring events were undertaken and exceedances were recorded in ten monitoring events (Table 2.15). Upon further investigation, the recorded exceedances in air quality monitoring were considered to be sporadic events of cumulative anthropogenic activities in this area of Hong Kong and the construction works under this Contract were unlikely the major cause of the recorded exceedances. Detailed investigation findings were presented in Appendix L of the First to Fourth Monthly EM&A Report.

Table 2.15 Summary of Exceedances for Air Quality Impact Monitoring

Station	Exceedance Level	1-hr TSP	24-hr TSP	Number of Exceedances
Station	Exceedance Level	1-hr TSP	24-hr TSP	1-hr TSP	24-hr TSP
AQMS1	Action Level	2013-11-07 2014-01-03 2014-02-28	2014-01-03	3	1
AQMS1	Limit Level	-	-	0	0
ASR1	Action Level	2013-11-19 2013-12-11 2014-01-03 2014-01-15 2014-01-27	2013-12-11 2013-12-28	5	2
ASR1	Limit Level	-	-	0	0
ASR5	Action Level	2013-11-07 2013-11-19 2013-12-11 2013-12-23 2013-12-28 2014-01-03 2014-01-27	2013-12-11 2013-12-28	7	2
ASR5	Limit Level	2013-12-11	-	1	0
AQMS2/ASR6	Action Level	2013-12-11 2013-12-23 2013-12-28 2014-01-27 2014-02-12	-	5	0
AQMS2/ASR6	Limit Level	-	2013-12-23	0	1
ASR10	Action Level	2013-12-28	-	1	0
ASR10	Limit Level	2013-11-07	-	1	0
Total number of Action level Exceedances:				21	5
Total number of Limit level Exceedances:				2	1

For marine water quality impact monitoring, a total of fifty-one monitoring events were undertaken and exceedances were recorded in two monitoring events (Table 2.17). The exceedances were well within the natural range and were unlikely to be due to the marine works of this Contract upon further investigation. Detailed investigation findings are presented in Appendix L of the First to Fourth Monthly EM&A Report. In addition, the construction impact on depth-averaged SS was assessed to compare the quarterly mean values of depth-averaged SS with the relevant ambient mean values. Results showed that the quarterly mean values of depth-averaged SS at all monitoring stations are well below the ambient mean values (Table 2.16), thus no further action is required in accordance with the Updated EM&A Manual.

Table 2.16 Comparison between Quarterly Mean and Ambient Mean Values of Depth-averaged Suspended Solids

Station	Baseline Mean		Ambient Mean ^(a)		Quarterly Mean (November 2013 to February 2014)
	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood
CS4	10.2	9.0	13.3	11.7	5.2	5.0
CS6	10.9	11.7	14.1	15.2	5.2	5.2
IS12	9.2	9.5	12.0	12.3	5.2	5.3
IS13	10.0	10.5	13.0	13.7	5.2	5.3
IS14	10.4	9.7	13.5	12.6	5.3	5.4
IS15	9.6	11.0	12.5	14.2	5.7	5.6
SR10A	10.3	10.2	13.3	13.3	5.4	5.1
SR8	10.1	11.3	13.1	14.7	5.5	5.4
SR9	8.8	9.9	11.4	12.8	5.4	5.6
Grand Total	10.0	10.3	13.0	13.4	5.4	5.3
Notes:
(a) Ambient mean value is defined as a 30% increase of the baseline mean value

Table 2.17 Summary of Exceedances for Marine Water Quality Impact Monitoring

Station	Exceedance Level ^(a)	DO (Surface and Middle)		DO (Bottom)		Turbidity (depth-averaged)		SS (depth-averaged)
Station	Exceedance Level ^(a)	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood	Mid-ebb	Mid-flood
CS4	AL	-	-	-	-	-	-	-	-
CS4	LL	-	-	-	-	-	-	-	-
CS6	AL	-	-	-	-	-	-	-	-
CS6	LL	-	-	-	-	-	-	-	-
IS12	AL	-	-	-	-	-	-	-	-
IS12	LL	-	-	-	-	-	-	-	-
IS13	AL	-	-	-	-	-	-	-	-
IS13	LL	-	-	-	-	-	-	-	-
IS14	AL	-	-	-	-	-	-	-	-
IS14	LL	-	-	-	-	-	-	-	-
IS15	AL	-	-	-	-	-	-	2013-12-06	2013-12-04
IS15	LL	-	-	-	-	-	-	-	-
SR8	AL	-	-	-	-	-	-	-	2013-12-06
SR8	LL	-	-	-	-	-	-	-	-
SR9	AL	-	-	-	-	-	-	2013-12-06	2013-12-06
SR9	LL	-	-	-	-	-	-	-	-
SR10	AL	-	-	-	-	-	-	-	-
SR10	LL	-	-	-	-	-	-	-	-
Total AL Exceedances:		0	0	0	0	0	0	2	3
Total LL Exceedances:		0	0	0	0	0	0	0	0
Notes:
(a) AL = Action Level; LL = Limit Level

One Action Level exccedance of impact dolphin monitoring was recorded in this reporting quarter. Following the review of monitoring data and marine works details in accordance with the procedures stipulated in the Event and Action Plan of Updated EM&A Manual, the recorded exceedance was considered to be due to natural seasonal variation of dolphin ranging pattern. Detailed investigation findings are presented in Appendix K.

Cumulative statistics are provided in Appendix K.

2.10 Summary of Complaints, Notification of Summons and Successful Prosecutions

The Environmental Complaint Handling Procedure is provided in Figure 2.4.

No complaints, notification of summons and prosecution were received in the reporting period.

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

3 Future Key Issues

3.1 Construction Activities for the Coming Quarter

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

Table 3.1 Construction Works to Be Undertaken in the Coming Quarter

Works to be undertaken
Marine-based Works
· Dredging
· Reclamation at Portion N-A
· Vertical Seawall construction
· Sloping Seawall construction
· Marine Sheet Piling for Box Culvert extension
· Predrilling for Box culvert Foundation
Land-based Works
Site WA-18 · Site office construction Portion N6
· CLP Substation Footing & underground utilities works
· CLP Substation Superstructure

3.2 Key Issues for the Coming Quarter

Potential environmental impacts arising from the above upcoming construction activities are mainly associated with dust, marine water quality, marine ecology and waste management issues.

3.3 Monitoring Schedule for the Coming Quarter

Impact monitoring for air quality, marine water quality and marine ecology (include dolphin monitoring and post-translocation coral monitoring) are scheduled to continue for the next reporting period.

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

4 Conclusions

This First Quarterly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 November 2013 to 28 February 2014, in accordance with the Updated EM&A Manual and the requirements of EP-354/2009/B.

Air quality (including 1-hour TSP and 24-hour TSP), marine water quality and dolphin monitoring were carried out in the reporting period. Twenty-one Action Level and two Limit Level exceedances for 1-hr TSP, and five Action Level and one Limit Level exceedances for 24-hr TSP were recorded during the reporting period. Five Action Level exceedances for depth-averaged SS were recorded in marine water quality impact monitoring during the reporting period. Investigation findings showed that the Project works were unlikely to be the major cause of the recorded exceedances in air quality and water quality monitoring. Nevertheless, the Contractor was reminded to ensure that all dust mitigation measures are provided at the construction sites and the proper deployment of cage-type silt curtains at the dredging site.

A total of 59 groups of 249 Chinese White Dolphin sightings were recorded during the two sets of surveys from November 2013 to February 2014. During this month of dolphin monitoring, no unacceptable impact from the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was noticeable from general observations. Although the dolphins infrequently occurred along the alignment of TM-CLKL Northern Connection Sub-Sea Tunnel Section in the past and during the baseline monitoring period, it is apparent that dolphin usage has been significantly reduced in NEL. It is critical to monitor the dolphin usage in North Lantau region in the upcoming quarters, to determine whether the dolphins are continuously affected by the various construction activities in relation to the construction works of the Contract, and whether suitable mitigation measure can be applied to revert the situation.

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

No complaint and summons/ prosecution was received during the reporting period.

The monitoring programme has been reviewed and was considered as adequate to cater for the nature of works in progress. Change to the monitoring programme was thus not recommended at this stage. The monitoring programme will be evaluated as appropriate in the next reporting period. The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

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

([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.

Appendix A	Project Organization
Appendix B	Three Months Programme
Appendix C	Environmental Mitigation And Enhancement Measure Implementation Schedules (EMIS)
Appendix D	Action And Limit Levels
Appendix E	Monitoring Schedule
Appendix F	Air Quality Monitoring Results
Appendix G	Meteorological Data
Appendix H	Water Quality Monitoring Results
Appendix I	Impact Dolphin Monitoring
Appendix J	Event And Action Plan
Appendix K	Cumulative Statistics On Exceedance And Complaint
Appendix L	Waste Flow Table

Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

Appendix G

Appendix H

Appendix I

Appendix J

Appendix K

Appendix L

Executive Summary

1 Introduction

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

This is the First Quarterly EM&A Report under the Contract No. HY/2012/08 Tuen Mun – Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section. This report presents a summary of the environmental monitoring and audit works from 1 November 2013 to 28 February 2014.

1.3 Organization Structure

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

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

The implementation schedule of environmental mitigation measures 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 Water Quality Monitoring

2.2.1 Monitoring Requirements & Equipment

2.2.2 Action & Limit Levels

2.2.3 Monitoring Schedule for the Reporting Period

2.2.4 Results and Observations

2.3 Dolphin Monitoring

2.3.1 Monitoring Requirements

2.3.2 Monitoring Equipment

2.3.3 Monitoring Parameter, Frequencies & Duration

2.3.4 Monitoring Location

2.3.5 Action & Limit Levels

2.3.6 Monitoring Schedule for the Reporting Period

2.3.7 Results & Observations

2.3.8 Marine Mammal Exclusion Zone Monitoring

2.4 Coral Monitoring

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

3 Future Key Issues

3.2 Key Issues for the Coming Quarter

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

4 Conclusions