TABLE OF CONTENTS

Executive SUMMARY			Page
1	INTRODUCTION		1-2
1.1	Basic Project Information		1
1.2	Project Organization		2
1.3	Construction Programme		2
1.4	Construction Works Undertaken During the Reporting Period		2
2	EM&A Requirement		3-6
2.1	Summary of EM&A Requirements		3-4
2.2	Monitoring Requirements		4
2.3	Action and Limit Levels		4-6
2.4	Event Action plans		6
2.5	Mitigation Measures		6
3	ENVIRONMENTAL MONITORING AND AUDIT		6-10
3.1	Air Quality Monitoring Result		6
3.2	Noise Monitoring Results		7
3.3	Water Quality Monitoring Results		7-8
3.4	Dolphin Monitoring		8
3.5	Implementation Status of Environmental Mitigation Measures		8-9
3.6	Advice on the Solid and Liquid Waste Management Status		9-10
3.7	Environmental Licenses and Permits		10
4	Summary of Exceedance, Complaint, notification of summons and sucessful prosecution		11
4.1	Summary of Exceedance of the Environmental Quality Performance Limit		11
4.2	Summary of Complaints, Notification of Summons and Successful Prosecution		11
5	Comments, recommendation and conclusion		12-13
5.1	Comments		12
5.2	Recommendations		12
5.3	Conclusions		12-13
Figures
Figure 1		Air Quality and Noise Monitoring Stations for HKBCF
Figure 2		Water Quality Monitoring Stations(construction phases)
Figure 3		Dolphin Monitoring Transect Line and Layout Map

Table
Table 1.1	Contact Information of Key Personnel
Table 2.1	Air Quality and Noise Monitoring Locations
Table 2.2	Water Quality Monitoring Stations(construction phases)
Table 2.3	Action and Limit Levels for 1-hour TSP
Table 2.4	Action and Limit Levels for 24-hour TSP
Table 2.5	Action and Limit Levels for Construction Noise
Table 2.6	Action and Limit Levels for Water Quality
Table 2.7	Action and Limit Levels for Chinese White Dolphin Monitoring ¡V Approach to Define Action
	Level (AL) and Limit Level (LL)
Table 2.8	Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White Dolphin Monitoring
Table 3.1	Summary of marine sediment disposed to dumping site via Contract No. HY/2013/03

APPENDIX
Appendix A	Location of Works Areas
Appendix B	Project Organization for Environmental Works
Appendix C	Construction Programme
Appendix D	Event and Action Plan
Appendix E	Waste Flow Table & Marine Sediment
Appendix F	Environmental Licenses and Permits
Appendix G	Implementation Schedule for Environmental Mitigation Measures (EMIS)
Appendix H	Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions
Appendix I	Environmental Site Inspection Schedule
Appendix J	Investigation Report on Action or Limit Level Non-compliance

Executive SUMMARY

This Quarterly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) ¡V Infrastructure Works Stage I (Western Portion) (hereafter referred to as ¡§the Contract¡¨) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to China Harbour Engineering Co., Ltd. (hereafter referred to as ¡§the Contractor¡¨) and ETS-Testconsult Limited was appointed as the Environmental Team (ET) by the Contractor.

The Contract is part of Hong Kong ¡V Zhuhai ¡V Macao Bridge HKBCF which is a ¡§Designated Project¡¨, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation works of the Contract was started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014.

ETS-Testconsult Limited has been appointed by the Contractor to implement the Environmental Monitoring & Audit (EM&A) programme for the Contract in accordance with the Updated EM&A Manual for HKBCF (Version 1.0) and provide environmental team services to the Contract.

This is the Sixth Quarterly Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries findings of the EM&A works conducted during the reporting period from 01 March 2016 to 31 May 2016.

Environmental Monitoring and Audit Progress

The EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). It should be noted that the air quality and noise monitoring works for the Contract are covered by Contract No. HY/2010/02 ¡§Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works¡¨ and Contract No. HY/2011/03 ¡§Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V Section between Scenic Hill and HKBCF¡¨. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7 and noise monitoring at NMS2 and NMS3B show in Figure 1, water quality monitoring show in Figure 2 and dolphin monitoring show in Figure 3 as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02 and HY/2011/03. However, this is subject to ENPO¡¦s final decision on which ET should carry out the monitoring works at these stations.

The dates of environmental site inspections during the reporting period are listed below:

Environmental Site Inspection Date
March 2016	April 2016	May 2016
03, 11, 17, 24 and 31	07, 15, 21 and 28	05, 12, 20 and 26

Breaches of Action and Limit Levels

Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.

There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

Although the marine construction works of temporary loading and unloading point was completed in December 2015 and no marine works was carried out during this reporting period, water quality monitoring and impact dolphin monitoring are still required in this reporting month.

There was one Limit Level exceedance of SS on impact water quality monitoring at station SR4(N) during mid-flood tide recorded on 20 May 2016. After investigation, there was concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during the reporting period. There was no Action and Limit Level exceedance recorded on other date at the monitoring stations showed in Table 2.2 by the Environmental Team of Contract No. HY/2010/02 during the reporting period. The Investigation Report No. 003 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance was provided in Appendix J.

Impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2010/02.

Implementation of Environmental Measures

Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for the Project. Potential environmental impacts due to the construction activities were monitored and reviewed.

Complaint Log

There was no complaint received in relation to the environmental impact during the reporting period.

Notifications of Summons and Successful Prosecutions

There were no notification of summon or prosecution received during the reporting period.

Reporting Change

The Environmental Permit (EP) was updated from No. EP-353/2009/J to No. EP-353/2009/K for HKBCF which was applied on 24 March 2016 and was issued on 11 April 2016. These documents are available through the EIA Ordinance Register.

1 INTRODUCTION

1.1 Basic Project Information

1.1.1 This Quarterly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/02 Hong Kong¡VZhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) ¡V Infrastructure Works Stage I (Western Portion) (hereafter referred to as ¡§the Contract¡¨) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to China Harbour Engineering Co., Ltd. (hereafter referred to as ¡§the Contractor¡¨) and ETS-Testconsult Limited was appointed as the Environmental Team (ET) by the Contractor.

1.1.2 The Contract is part of Hong Kong ¡V Zhuhai ¡V Macao Bridge HKBCF which is a ¡§Designated Project¡¨, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and an Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation works of the Contract started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014. The works area of the Contract is shown in Appendix A.

1.1.3 This is the Sixth Quarterly Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries the audit findings of the EM&A programme during the reporting period from 01 March 2016 to 31 May 2016.

1.2 Project Organization

1.2.1 The project organisation structure and lines of communication with respect to the on-site environmental management structure is shown in Appendix B. The key personnel contact names and numbers are summarized in Table 1.1.

Table 1.1 Contact Information of Key Personnel

Party	Position	Name of Key Staff	Tel. No.	Fax No.
Engineer or Engineer¡¦s Representative (AECOM Asia Co. Ltd.)	Resident Engineer	Mr. Fred Yeung	63308293	31525116
Environmental Project Office / Independent Environmental Checker (Ramboll Environ Hong Kong Limited)	Environmental Project Office Leader	Mr. Y. H. Hui	34652888	34652899
	Independent Environmental Checker	Mr. Raymond Dai	34652888	34652899
	Environmental Site Supervisor	Mr. Ray Yan	51818165	34652899
Contractor (China Harbour Engineering Co., Ltd.)	Environmental Officer	Mr. Richard Ng	59770593	39150300
	Environmental Supervisor	Ms. Joy Chan	54005086	39150300
	Environmental Supervisor	Ms. Selena Yang	55122662	39150300
Environmental Team (ETS-Testconsult Ltd.)	Environmental Team Leader	Mr C. L. Lau	2946 7791	2695 3944

1.3 Construction Programme

1.3.1 A copy of the Contractor¡¦s construction programme is provided in Appendix C.

1.4 Construction Works Undertaken During the Reporting Period

1.4.1 A summary of the construction activities undertaken during this reporting period is shown below:

¡± Bored piles works in Portion A1, D, C1, C2& F;

¡± Temporary marine loading and unloading point for segment delivery in Portion A1;

¡± Filling works (land based) in Portion A & B1;

¡± Pier / Abutment in Portion D;

¡± Pile Cap in Portion D & A1;

¡± Pre-bored H-pile for sign gantries in Portion D;

¡± Loading test of preliminary pre-bored socketed steel H-pile in Portion D;

¡± UU Detection Works in Portion I;

¡± Pit excavation work and duct laying in Portion I;

¡± Footing construction of directional signs in Portion I;

¡± Storm drain construction;

¡± Construction of alternative site entrance;&

¡± Marine sediment excavation activities from the land-based works and corresponding disposal at the designated disposal sites.

2 EM&A Requirement

2.1 Summary of EM&A Requirements

2.1.1 The monthly EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). It should be noted that the air quality and noise monitoring works for the Contract are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works and Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V Section between Scenic Hill and HKBCF. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7, noise monitoring at NMS2 and NMS3B show at Figure 1 and Table 2.1, water quality monitoring stations show at Figure 2 and Table 2.2 and dolphin monitoring show at Figure 3 as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02 and HY/2011/03. However, this is subject to ENPO¡¦s final decision on which ET should carry out the monitoring works at these stations.

The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at 23 transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2010/02. The dolphin monitoring should adopt line-transect vessel survey method. The survey follows pre-set and fixed transect lines in the two areas defined by AFCD as: Northeast Lantau survey area; and Northwest Lantau survey area. Figure 3 shows the co-ordinates for the transect lines and layout map.

2.1.2 A summary of air and noise monitoring locations are presented in Table 2.1. The location of air quality and noise monitoring stations are shown as in Figure 1.

Table 2.1 Air Quality and Noise Monitoring Locations

Environmental Monitoring	Identification No.	Location Description
Air Quality	AMS6^(1)	Dragonair / CNAC (Group) Buidling
	AMS7^(1) (^2^)	Hong Kong SkyCity Marriott Hotel
Noise	NMS2^(^3^)	Seaview Crescent
	NMS3B^(^3^)(^4^)	Site Boundary of Site Office Area at Works Area WA2

Remarks:

(1) The ET of this Contract should conduct impact air quality monitoring at the AMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.

(2) The air quality monitoring location AMS7A was relocated back to the original monitoring location AMS7 of the updated EM&A Manual started from January 2016.

(3) ET of this Contract should conduct impact noise monitoring at the NMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.

(4) The Action and Limit Levels for schools will be applied for this alternative monitoring location.

2.1.3 A summary of water quality monitoring stations are presented in Table 2.2. The location of water quality monitoring stations are shown as in Figure 2.

Table 2.2 Water Quality Monitoring Stations (construction phases)

Station	Description	East	North
IS7	Impact Station (Close to HKBCF construction site)	812244	818777
IS10	Impact Station (Close to HKBCF construction site)	812577	820670
IS(Mf)11	Impact Station (Close to HKBCF construction site)	813562	820716
SR3	Sensitive receivers (San Tau SSSI)	810525	816456
SR4(N)	Sensitive receivers (Tai Ho)	814705	817859
SR5	Sensitive receivers (Artificial Reef in NE Airport)	811489	820455
SR6	Sensitive receivers (Sha Chau and Lung Kwu Chau Marine Park)	805837	821818
SR7	Sensitive receivers (Tai Mo Do)	814293	821431
SR10A^[1]	Sensitive receivers (Ma Wan FCZ)1	823741	823495
SR10B(N)^[1]	Sensitive receivers (Ma Wan FCZ)2	823683	823187
CS(Mf)3	Control Station	809989	821117
CS(Mf)5	Control Station	817990	821129
CS4	Control Station	810025	824004
CS6	Control Station	817028	823992
CSA^[2]	Control Station	818103	823064

Note:

[1]: Additional monitoring station for Ma Wan FCZ.

[2]: Additional control monitoring station for Ma Wan FCZ

Remarks:

The ET of this Contract should conduct impact water quality monitoring at the WQMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project. The ET of the Contract shall communicate and share the monitoring data to the ET(s) of other works contracts if the water quality monitoring station(s) is/are as part of EM&A programme.

2.2 Monitoring Requirements

2.2.1 The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule, meteorological information are detailed in the monthly EM&A Reports prepared for Contract Nos. HY/2010/02 and HY/2011/03.

2.3 Action and Limit Levels

2.3.1 The Action and Limit Levels for 1-hr TSP and 24-hr TSP are provided in Table 2.3 and Table 2.4 respectively.

Table 2.3 Action and Limit Levels for 1-hour TSP

Monitoring Station.	Action Level,mg/m^3	Limit Level,mg/m^3
AMS6 ¡V Dragnair / SNAC (Group) Building (HKIA)	360	500
AMS7A ¡V Chu Kong Air-Sea Union Transportation Co. Ltd.	370	500
AMS7 ¡V Hong Kong SkyCity Marriott Hotel	370	500

Table 2.4 Action and Limit Levels for 24-hour TSP

Monitoring Station.	Action Level,mg/m^3	Limit Level,mg/m^3
AMS6 ¡V Dragnair / SNAC (Group) Building (HKIA)	173	260
AMS7A ¡VChu Kong Air-Sea Union Transportation Co. Ltd.	183	260
AMS7 ¡V Hong Kong SkyCity Marriott Hotel	183	260

2.3.2 If exceedance(s) at these station(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the quarterly EM&A Report.

2.3.3 The Action and Limit Levels for construction noise are provided in Table 2.5

Table 2.5 Action and Limit Levels for Construction Noise

Parameter	Action Level	Limit Level
07:00 ¡V 19:00 hours on normal weekdays	When one documented complaint is received	75 dB(A)*

Notes:

If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.

* Reduce to 70 dB(A) for schools and 65 dB(A) during school examination period.

2.3.4 If exceedance(s) at these station(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the quarterly EM&A Report.

2.3.5 The Action and Limit Levels for Water Quality are provided in Table 2.6

Table 2.6 Action and Limit Levels for Water Quality

Parameters	Action	Limit
DO in mg/L (Surface, Middle & Bottom)	Surface and Middle 5.0 Bottom 4.7	Surface and Middle 4.2 (except 5 mg/L for FCZ) Bottom 3.6
SS in mg/L (depth-averaged) at all monitoring stations and control stations	23.5 and 120% of upstream control station's SS at the same tide of the same day*	34.4 and 130% of upstream control station's SS at the same tide of the same day and 10mg/L for WSD Seawater intakes*
Turbidity in NTU (depth-averaged)	27.5 and 120% of upstream control station's turbidity at the same tide of the same day*	47.0 and 130% of upstream control station's turbidity at the same tide of the same day*

* Remarks: Reference is made to EPD approval of adjustment of water quality assessment criteria issued and became effective on 18 February 2013.

Notes: 1 "depth-averaged" is calculated by taking the arithmetic means of reading of all three depths.

2 For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits.

3 For turbidity, SS, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

4 All the figures given in the table are used for reference only and the EPD may amend the figures whenever it is considered as necessary.

5 The 1%-ile of baseline data for dissolved oxygen (surface and middle) and dissolved oxygen (bottom) are 4.2mg/L and 3.6mg/L respectively.

2.3.6 If exceedance(s) at these station(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the quarterly EM&A Report.

2.3.7 The Action and Limit Levels for Chinese White Dolphin Monitoring are provided in Table 2.7 & Table 2.8

Table 2.7 Action and Limit Levels for Chinese White Dolphin Monitoring ¡V Approach to Define Action Level (AL) and Limit Level (LL)

	North Lantau Social Cluster
	NEL	NWL
Action Level	(STG < 70% of baseline) & (ANI < 70% of baseline)	(STG < 70% of baseline) & (ANI < 70% of baseline)
Limit Level	[(STG < 40% of baseline) & (ANI < 40% of baseline)] AND [ (STG < 40% of baseline) & (ANI < 40% of baseline)]

For North Lantau Social Cluster, action level will be trigger if either NEL or NWL fall below the criteria; limit level will be triggered if both NEL and NWL fall below the criteria.

Table 2.8 Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White Dolphin Monitoring

	North Lantau Social Cluster
	NEL	NWL
Action Level	STG < 4.2) & (ANI < 15.5 )	(STG < 6.9) & (ANI < 31.3)
Limit Level	[(STG < 2.4) & (ANI < 8.9)] AND [(STG < 3.9) & (ANI < 17.9)]

The ET of this Contract should conduct impact dolphin monitoring as part of EM&A programme according to latest notification from ENPO when the monitoring transect(s) is/are no longer covered by another ET of the HZMB project.

2.3.8 If exceedance(s) at these transect(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the quarterly EM&A Report.

2.4 Event Action Plans

2.4.1 The event and action plan is provided in Appendix D.

2.5 Mitigation Measures

2.5.1 Environmental mitigation measures for the Contract were recommended in the Approved EIA Report. Appendix G lists the recommended mitigation measures and the implementation status.

3 Environmental Monitoring and Audit

3.1 Air Quality Monitoring Results

3.1.1 The monitoring results for AMS6 and AMS7 are reported in the monthly EM&A Reports (March 2016, April 2016 and May 2016) prepared for Contract Nos. HY/2011/03 and HY/2010/02 respectively.

3.1.2 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.

3.1.3 There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

3.2 Noise Monitoring Results

3.2.1 The monitoring results for NMS2 and NMS3B were reported in the monthly EM&A Reports (March 2016, April 2016 and May 2016) prepared by Contract No. HY/2010/02.

3.2.2 There was no exceedance of noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

3.3 Water Quality Monitoring Result

3.3.1 Although the marine construction works of temporary loading and unloading point was completed in December 2015 and no marine works was carried out during this reporting period, water quality monitoring and impact dolphin monitoring are still required in this reporting month.

3.3.2 The monitoring results for the monitoring stations showed in Table 2.2 are reported in the monthly EM&A Reports (March 2016, April 2016 and May 2016) prepared for Contract No. HY/2010/02. There was one exceedance recorded during the reporting period. One Limit Level exceedance of SS on impact water quality monitoring at station SR4(N) during mid-flood tide was recorded on 20 May 2016.

3.3.3 Exceedance was not due to operation of the works under Contract No. HY/2013/02 because it was confirmed that no any marine works was carried out at the temporary loading and unloading point in Portion A1 from 16 May 2016 to the water quality monitoring period on 20 May 2016 under Contract No. HY/2013/02 so that it was unlikely to generate any suspended solids to cause the SS exceedances recorded at SR4(N) during mid-flood tide on 20 May 2016.The exceedance was recorded during flood tide in which the direction of flow was flowing from east to west and the monitoring station SR4(N) is located at the south-east side and far away from the above mentioned works area. Secondly, suspended solids values recorded at Impact Station closer to the works (e.g. IS7) were below the Action and Limit Level during the same tide on the same day. Therefore it is unlikely that the exceedance recorded was contributed by the works under Contract No. HY/2013/02. The water quality mitigation measures as mentioned in EM&A Manual and EP was fully implemented in this Contract which including to ensure the maintenance of the silt curtain by Contract No. HY/2010/02 on a daily basis etc. Hence, the exceedance was considered as non-Project related.

3.3.4 After investigation, there was concluded that the exceedance was not relevant to this Contract due to the above mentioned reasons. The Investigation Report No. 003 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance was provided in Appendix J. There was no Action and Limit Level exceedance recorded on other date at the monitoring stations showed in Table 2.2 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

3.3.5 Although the exceedance was not relevant to this Contract, the Contractor was reminded to ensure all construction activities that generate wastewater with high concentrations of suspended solid (SS) should be collected to sedimentation tanks or package treatment systems for proper treatment prior to disposal. The Contractor was also reminded to ensure that all silt removal facilities, channels and manholes shall be maintained and any deposited silt and grit shall be removed regularly.

3.4 Dolphin monitoring Result

3.4.1 Although the marine construction works of temporary loading and unloading point was completed in December 2015 and no marine works was carried out during this reporting period, impact dolphin monitoring is still required in this reporting period.

3.4.2 Impact dolphin monitoring results at all transects were reported in the EM&A Report prepared for Contract No. HY/2010/02. One limit level exceedance was recorded in the monitoring period (March 2016 ¡V May 2016).

3.4.3 During this reporting period, no marine works was conducted by Contract No. HY/2013/02. After checked the Contractor¡¦s Marine Travel Route record, there have not any vessel in or out the HKBCF perimeter silt curtain during the reporting period.

3.4.4 After investigation, there was concluded that the exceedance was not relevant to this Contract due to the above mentioned reasons. The Investigation Report (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance was prepared by the ET of Contract No. HY/2010/02 and detailed in the quarterly EM&A Report prepared for Contract No. HY/2010/02.

3.4.5 Although the exceedances were not relevant to this Contract, the Contractor was reminded to ensure provision of ongoing maintenance to the silt curtains and to carry out maintenance work by the Contractor of Contract No. HY/2010/02 once defects were found.

3.5 Implementation of Environmental Measures

3.5.1 In response to the site audit findings, the Contractor carried out corrective actions. Details of site audit findings and the corrective actions during the reporting period are presented in Appendix F.

3.5.2 The Contractor waters 8 times per day on all exposed soil within the project site and associated works areas when construction activities are being undertaken.

3.5.3 The Contractor was reminded to provide well-maintained plant operated on-site and plant served regularly;

3.5.4 The Contractor was reminded to switch off vehicles and equipment while not in use;

3.5.5 The Contractor was reminded to schedule the construction works to minimize noise nuisance etc.

3.5.6 The Contractor was reminded to ensure all construction activities that generate wastewater with high concentrations of suspended solid (SS) should be collected to sedimentation tanks or package treatment systems for proper treatment prior to disposal.

3.5.7 Training material of Regular Marine Travel Route Plan was prepared. Since the training material is under review, and marine delivery operation still not commence, the RMTRP training is not yet started. There have not any vessel in or out the HKBCF perimeter silt curtain so that no Marine Travel Route was recorded.

3.5.8 The tool box training of dolphin was carried out in Dec 2015. According to the action plan and communication flow chart of dolphin instruction, if any dolphin intruded BCF perimeter silt curtain, ETL should be informed. There was no notification received on any dolphin intrusion during the reporting period.

3.5.9 A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E. Most of the necessary mitigation measures were implemented properly.

3.6 Advice on the Solid and Liquid Waste Management Status

3.6.1 The Contractor registered as a chemical waste producer for the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.

3.6.2 5674 m³ of excavated marine sediment was generated in this reporting period. The excavated marine sediment was stored properly on site during this reporting period until further instruction by the Engineer. The disposal of excavated sediment as per EP-353/2009/K to be implemented subject to confirmation.

3.6.3 The summary of waste flow table is detailed in Appendix G.

3.6.4 Disposal of Marine Sediment

3.6.4.1 For the marine sediment disposal, after the acceptance of the review of the approved Sediment Quality Report (SQR) for this Project under EPD letter dated 19 August 2015, an approval to dispose the marine sediment extracted from bored piling for this Project was then approved under memo from Secretary, Marine Fill Committee of CEDD dated 20 August 2015 for the disposal of marine sediment extracted from bored piling works. The disposal sites allocated to this Project are the Mud Pit CMP2 of the Confined Marine Sediment Disposal Facility to the South of The Brothers (or at the East of Sha Chau). As advised by CEDD in the memo dated 19 February 2016, from 00:00 on 22 March 2016 onward, the disposal space at CMP2 of the South of The Brothers is closed and all disposal of contaminated sediment is to be carried out at CMP Vd to the East of Sha Chau (ESC). As a practical means, the disposal operation is managed by one contractor who is also responsible for applying dumping permit and its subsequent extension applications from EPD. Contract No. HY/2013/03 has been assigned to coordinate and arrange for disposal of extracted marine sediment from Contract Nos. HY/2013/02, HY/2013/03 and HY/2013/04.

3.6.4.2   For the dumping arrangement, the barge for disposal of marine sediment will moor at the temporary loading and unloading at the east shore of the HKBCF Island, which has been being used by contractor Contract No. HY/2010/02 for reclamation activities. In terms of safety consideration and to avoid mixing of sediment between contracts, each dumping date will be allocated to one Contract. The quantity of marine sediment disposed on each date is from one Contract.

3.6.4.3 During dumping, HY/2013/02 is responsible for transporting the marine sediment from his site area to the barge by Land transportation. The estimated quantity of marine sediment in each truck is confirmed by Resident Site Staff of each Contract. The trip tickets for transportation and disposal of marine sediment are collected and checked. Contract No. HY/2013/03 as the dumping permit holder (EP/MD/16-177, EP/MD/16-202, EP/MD/17-007 and EP/MD/17-029 in this reporting period) is responsible for reporting to EPD the quantity disposed of as the condition stipulated in the dumping permit.

3.6.5 Marine sediment extracted from bored piling in this Contract was disposed to allocated dumping site via Contract No. HY/2013/03 on March and April 2016. The quantity disposed up to end of May 2016 was 9816 m³. The Monthly Summary of Marine sediment disposed to dumping site was provided in Appendix G and Table 3.1.

Table 3.1 Summary of marine sediment disposed to dumping site via Contract No. HY/2013/03

Month/Year	Quantity disposed (m^3)
January 2016	1272
February 2016	2816
March 2016	600
April 2016	5218
May 2016	0
Total =	9816

3.6.6 The Contractor shall ensure no spilling and overflowing of materials during loading / unloading / transportation is allowed.

3.6.7 The Contractor was reminded that chemical waste containers should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packing, Labelling and Storage of Chemical Waste.

3.7 Environmental Licenses and Permits

3.7.1 The valid environmental licenses and permits during the reporting period are summarized in Appendix H.

4 Summary of exceedance, complaint, notification of summons and successful prosecution

4.1 Summary of Exceedance of the Environmental Quality Performance Limit

4.1.1 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.

4.1.2 There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

4.1.3 There was no Action and Limit Level exceedance of noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

4.1.4 There was one Limit Level exceedance of SS on impact water quality monitoring at station SR4(N) during mid-flood tide recorded on 20 May 2016. After investigation, there was concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during the reporting period. There was no Action and Limit Level exceedance recorded on other date at the monitoring stations showed in Table 2.2 by the Environmental Team of Contract No. HY/2010/02 during the reporting period. The Investigation Report No. 003 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance was provided in Appendix J.

4.1.5 Impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2010/02.

4.2 Summary of Complaints, Notification of Summons and Successful Prosecution

4.2.1 There was no complaint received in relation to the environmental impact during the reporting period.

4.2.2 There were no notifications of summons or prosecutions received during the reporting period.

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

5 Comments, recommendations and conclusion

5.1 Comments

5.1.1 According to the environmental site inspection undertaken during the reporting period, the following recommendations were provided:

n The Contractor was reminded to provide drip tray for the chemical container;

n The Contractor was reminded to dispose the general waste properly;

n The Contractor was reminded to store the C&D waste/material properly;

n The Contractor was reminded to clean stagnant water;

n The contractor was reminded to provide appropriate NRMM label for the machines;

n The Contractor was reminded to enhance the water spraying

n The Contractor was reminded to provide additional watering for the breaking works; and

n The Contractor was reminded to provide water spraying for the haul road regularly to prevent fugitive dust emission.

5.1.2 A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E. Most of the necessary mitigation measures were implemented properly.

5.2 Recommendations

5.2.1 With implementation of the recommended environmental mitigation measures, the contract¡¦s environmental impacts were considered environmentally acceptable. The weekly environmental site inspections ensured that all the environmental mitigation measures recommended were effectively implemented.

5.2.2 The recommended environmental mitigation measures, as included in the EM&A programme, effectively minimize the potential environmental impacts from the Contract. Also, the EM&A programme effectively monitored the environmental impacts from the construction activities and ensure the proper implementation of mitigation measures. No particular recommendation was advised for the improvement of the programme.

5.3 Conclusions

5.3.1 The site preparation work of the Contract was started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014. This is the Sixth Quarterly EM&A Report which summaries findings of the EM&A work during the reporting period from 01 March 2016 to 31 May 2016.

5.3.2 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.

5.3.3 There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

5.3.4 There was no Action and Limit Level exceedance of noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

5.3.5 There was one Limit Level exceedance of SS on impact water quality monitoring at station SR4(N) during mid-flood tide recorded on 20 May 2016. After investigation, there was concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during the reporting period. There was no Action and Limit Level exceedance recorded on other date at the monitoring stations showed in Table 2.2 by the Environmental Team of Contract No. HY/2010/02 during the reporting period. The Investigation Report No. 003 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance was provided in Appendix J.

5.3.6 Impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2010/02.

5.3.7 Environmental site inspections were carried out on 03, 11, 17, 24 and 31 March 2016, 07, 15, 21 and 28 April 2016 and 05, 12, 20 and 26 May 2016. Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site inspections.

5.3.8 There was no complaint received in relation to the environmental impact during the reporting period.

5.3.9 There was no notification of summons and successful prosecution was received during the reporting period.