The construction works of CCGT Units No. 1 and No. 2 of the Additional Gas-fired Generation Units Project at the Black Point Power Station commenced on 5 December 2016 and 4 June 2020 respectively. This is the 18^th quarterly Environmental Monitoring and Audit (EM&A) report presenting the EM&A works carried out during the period from 1 March 2021 to 31 May 2021 for CCGT Unit No. 1 and CCGT Unit No. 2 in accordance with the EM&A Manual and the requirements of EP-507/2016/C and FEP-03/507/2016/C.

Summary of the Construction Works undertaken during the Reporting Period

The major construction works undertaken during the reporting period include:

CCGT Unit No. 1
Month	Construction Activities undertaken
March 2021	n Testing and commissioning.
April 2021	n Testing and commissioning.
May 2021	n Testing and commissioning.
CCGT Unit No. 2
Month	Construction Activities undertaken
March 2021	n Piling works; n 1500mm drainage installation; n Sheetpiling; n Water main construction; n Service trench construction; n Construction of site office; and n Installation of cable.
April 2021	n Piling works; n Pile tests; n Strom drain diversion; n Haul road and utility diversion; n Excavation and backfilling for trenches; and n Construction of site office.
May 2021	n Pile tests; n Excavation and backfilling for trenches; n Hoarding relocation; n New site office construction; n Excavation and Lateral Support (ELS) for pits; n Electric cable installation; and n Pile cap excavation.

The construction of CCGT Unit No. 1 was completed on 31 May 2021.

Environmental Site Inspection

For both CCGT Units No.1 and No.2, joint weekly site inspections were conducted by representatives of the Contractors, CAPCO Project Team and ET on 4, 11, 18 and 25 March 2021; 1, 8, 15, 22 and 29 April 2021; and 6, 13, 21 and 27 May 2021. The representative of the IEC joined the site inspections on 18 March 2021, 8 April 2021 and 13 May 2021. Details of the audit findings and implementation status are presented in Section 6.

Environmental Exceedance/Non-conformance/Complaint/Summons and Prosecution

For both CCGT Units No.1 and No.2:

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

No complaint was received during the reporting period.

No summon or prosecution was received in this reporting period.

1. Introduction

The Castle Peak Power Company Limited (CAPCO) is a joint venture between CLP Power Hong Kong Limited (CLP) and China Southern Power Grid Company Limited with CLP as the operator. ERM-Hong Kong, Limited (ERM) and Mott MacDonald Hong Kong Limited were appointed by CAPCO as the Environmental Team (ET) and the Independent Environmental Checker (IEC), respectively, to undertake the Environmental Monitoring and Audit (EM&A) activities for the installation of CCGT Units No.1 and No. 2 of the Additional Gas-fired Generation Units Project at the Black Point Power Station (BPPS) (“the Project”).

1.1 Purpose of the Report

This is the eighteenth quarterly EM&A report which summarises the audit findings during the reporting period from 1 March 2021 to 31 May 2021 for CCGT Units No. 1 and No. 2.

1.2 Structure of the Report

Following this introductory section, the remainder of this Quarterly EM&A Report is organised as follows:

n Section 2: Project Information

It summarises the background and scope of the project, site description, project organisation and contact details, construction programme, construction works undertaken and status of the Environmental Permits/Licenses during the reporting period;

n Section 3: Environmental Monitoring Requirement

It presents the environmental monitoring requirements for the Project;

n Section 4: Implementation Status of the Environmental Protection Requirements

It summarises the implementation of environmental protection measures during the reporting period;

n Section 5: Monitoring Results

It summarises the monitoring results obtained in the reporting period;

n Section 6: Environmental Site Inspection

It summarises the audit findings of the weekly site inspections undertaken within the reporting period;

n Section 7: Environmental Non-conformance

It summarises any monitoring exceedance, environmental complaints and summons within the reporting period;

n Section 8: Conclusion

2. Project information

2.1 Background

The scope of the Project involves the phased construction and operation of up to two additional combined cycle gas turbine (CCGT) units (with an installed capacity of up to 1,200 MW) at the BPPS. The additional generation units will be of CCGT configuration using natural gas as the primary fuel. It is a Designated Project under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO). The current EM&A Programme includes both the CCGT Units No. 1 and No. 2.

An EIA of the Additional Gas-fired Generation Units Project was prepared in accordance with the EIA Study Brief (No. ESB-286/2015) and the Technical Memorandum of the Environmental Impact Assessment Process (EIAO-TM) and submitted under the EIAO in February 2016. Subsequent to the approval of the EIA (EIAO Register Number AEIAR-197/2016), an Environmental Permit (EP-507/2016) (EP) for CCGT Unit No. 1 was granted by the Director of Environmental Protection (DEP) on 14 June 2016. An Application for Variation of an Environmental Permit (No. VEP-531/2017) was submitted to EPD on 28 July 2017 and the Variation of Environmental Permit (No. EP-507/2016/A) was granted on 21 August 2017. A FEP (FEP-02/507/2016/B) was granted to the Contractor, Leighton Contractors (Asia) Limited, of the CCGT Unit No. 1 on 13 September 2017.

Applications for Variation of Environmental Permit (EP-507/2016/A) and variation of Further Environmental Permit (FEP-02/507/2016/A) were submitted to EPD on 29 October 2018. The Variation of Environmental Permit (No. EP-507/2016/B) and variation of Further Environmental Permit (No. FEP-02/507/2016/B) were granted on 22 November 2018.

An application for Variation of Environmental Permit (No. VEP-575/2020) was submitted to EPD on 30 March 2020 to include CCGT Unit No. 2 and the Variation of Environmental Permit (EP-507/2016/C) was granted on 27 April 2020.

The Contractor, Leighton Contractors (Asia) Limited, has completed the civil works of CCGT Unit No. 1 in June 2020. The application for surrender of FEP (FEP-02/507/2016/B) was submitted to EPD on 16 July 2020.

Application for Further Environmental Permit (FEP-201/2020) was submitted to EPD on 3 August 2020 and the Further Environmental Permit (FEP-03/507/2016/C) was granted to the Contractor, Gammon Engineering & Construction Company Limited, of the CCGT Unit No. 2 on 28 August 2020.

2.2 General Site Description

The proposed location for the Project is within the existing boundaries of the BPPS site. The size of the land reserved for the additional generation units and the associated facilities (the Project Site) is about 55,320 m². Commissioning works for CCGT Unit No.1 and construction works for CCGT Unit No.2 are currently ongoing at the Project Site. The construction of CCGT Unit No. 1 was completed on 31 May 2021.

The location plan of key Project components for CCGT Units No. 1 and No. 2 is shown in Appendix A.

2.3 Construction Programme and Activities

The construction of CCGT Unit No. 1 was completed on 31 May 2021. The site photographic records on the completion of construction works are shown in Appendix B. A summary of the major construction activities undertaken in this reporting period is shown in Table 2.1. The construction programme for CCGT Units No. 1 and No. 2 is presented in Appendices C1 and C2, respectively.

Table 2.1 Summary of the Construction Activities Undertaken during the Reporting Period

CCGT Unit No. 1
Month	Construction Activities undertaken
March 2021	n Testing and commissioning.
April 2021	n Testing and commissioning.
May 2021	n Testing and commissioning.
CCGT Unit No. 2
Month	Construction Activities undertaken
March 2021	n Piling works; n 1500mm drainage installation; n Sheetpiling; n Water main construction; n Service trench construction; n Construction of site office; and n Installation of cable.
April 2021	n Piling works; n Pile tests; n Strom drain diversion; n Haul road and utility diversion; n Excavation and backfilling for trenches; and n Construction of site office.
May 2021	n Pile tests; n Excavation and backfilling for trenches; n Hoarding relocation; n New site office construction; n Excavation and Lateral Support (ELS) for pits; n Electric cable installation; and n Pile cap excavation.

2.4 Project Organisation

The project organisational chart and contact details for CCGT Units No. 1 and No. 2 are shown in Appendices D1 and D2, respectively.

2.5 Status of Environmental Licenses, Notification and Permits

2.5.1 CCGT Unit No. 1

A summary of the valid permits, licences, and/or notifications on environmental protection for CCGT Unit No. 1 is presented in Table 2.2.

Table 2.2 Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations for CCGT Unit No. 1

Permit/ Licences/ Notification	Reference	Validity Period	Remarks
Environmental Permit	EP-507/2016	Throughout the Contract	Permit granted on 14 Jun 2016
Variation of Environmental Permit	EP-507/2016/C	Throughout the Contract	Permit granted on 27 Apr 2020
Notification Pursuant to Section 3(1) of the Air Pollution Control (Construction Dust) Regulation	417935	Throughout the Contract	Notification received on 14 Jun 2017
Billing Account for Disposal of Construction Waste	417676	Throughout the Contract	Notification received on 8 Jun 2017
Chemical Waste Producer Registration	5214-421-K3324-01	Throughout the Contract	Registration approved on 6 Jul 2018
Billing Account for Disposal of Construction Waste	7028380	Throughout the contract	Approved on 26 Jul 2017
Billing Account for Disposal of Construction Waste	7029093	Throughout the contract	Approved on 19 Oct 2017
Application for Installation of Furnace, Chimney and Flue Premises	-	Throughout the contract	Approved on 3 Jun 2019 for steam cleaning of boiler

2.5.2 CCGT Unit No. 2

A summary of the valid permits, licences, and/or notifications on environmental protection for CCGT Unit No.2 is presented in Table 2.3.

Table 2.3 Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations for CCGT Unit No. 2

Permit/ Licences/ Notification	Reference	Validity Period	Remarks
Environmental Permit	EP-507/2016	Throughout the Contract	Permit granted on 14 Jun 2016
Variation of Environmental Permit	EP-507/2016/C	Throughout the Contract	Permit granted on 27 Apr 2020
Further Environmental Permit	FEP-03/507/2016/C	Throughout the Contract	Permit granted on 28 Aug 2020
Notification Pursuant to Section 3(1) of the Air Pollution Control (Construction Dust) Regulation	458265	Throughout the Contract	EPD Acknowledgement of receipt dated 17 Jul 2020
Chemical Waste Producer Registration	WPN5213-432-G2892-01	Throughout the Contract	Registration approved on 24 Aug 2020
Billing Account for Disposal of Construction Waste	7037977	Throughout the Contract	Approved on 5 Aug 2020
Billing Account for Disposal of Construction Waste	703999311	Throughout the Contract	Approved on 16 Mar 2021
Construction Noise Permit	GW-RW0019-21	14 Feb 2021 – 13 Aug 2021	Approved on 22 Jan 2021
Wastewater Discharge Licence	WT00037278-2020	28 Jan 2021 – 31 Jan 2026	Licence granted on 28 Jan 2021

3. ENVIRONMENTAL MONITORING REQUIREMENT

3.1 Water Quality Monitoring

3.1.1 CCGT Unit No. 1

In accordance with the EM&A Manual, monitoring works is required at a frequency of once per week on the first year of commissioning of the CCGT Unit No.1. The monitoring details including monitoring requirement, locations of monitoring stations have been confirmed and approved by EPD before commissioning of the CCGT Unit No.1.

Baseline water quality monitoring has been conducted from 20 April 2020 to 15 May 2020. The Baseline Water Quality Monitoring Report has been submitted to EPD on 4 August 2020.

The construction of CCGT Unit No. 1 was completed on 31 May 2021 and the operation phase water quality monitoring will be commenced in June 2021.

3.1.2 CCGT Unit No. 2

In accordance with the EM&A Manual, monitoring works are required at a frequency of once per week on the first year of commissioning of the CCGT Unit No.2. The monitoring details including monitoring requirement, locations of monitoring stations will be confirmed and approved by EPD before commissioning of the CCGT Unit No.2.

4. IMPLEMENTATION STATUS OF THE ENVIRONMENTAL PROTECTION REQUIREMENTS

4.1 Submissions under the Project

The Contractors have implemented all the environmental mitigation measures and requirements as stated in the EIA Report, Environmental Permit (EP) and EM&A Manual for the installation of CCGT Units No. 1 and No. 2.

4.1.1 CCGT Unit No. 1

The implementation status of the environmental mitigation measures for CCGT Unit No.1 during the reporting period is summarised in Appendix E. The status of the required submissions under the EP and EM&A Manual for the Project is presented in Table 4.1.

Table 4.1 Status of Required Submission under the CCGT Unit No. 1

EP Condition	Submission	Submission Date
Sections 15.1 & 15.5 of EM&A Manual (AEIAR-197/2016)	17^th Quarterly EM&A Report	31 March 2021
Condition 3.2 under Environmental Permit No. EP-507/2016/C	51^st Monthly EM&A Report	12 March 2021
	52^nd Monthly EM&A Report	13 April 2021
	53^rd Monthly EM&A Report	11 May 2021

4.1.2 CCGT Unit No. 2

The implementation status of the environmental mitigation measures for CCGT Unit No.2 during the reporting period is summarised in Appendix D. The status of the required submissions under the EP and EM&A Manual for the Project is presented in Table 4.2.

Table 4.2 Status of Required Submission under the CCGT Unit No. 2

EP Condition	Submission	Submission Date
Sections 15.1 & 15.5 of EM&A Manual (AEIAR-197/2016)	17^th Quarterly EM&A Report	31 March 2021
Condition 3.2 under Environmental Permit No. EP-507/2016/C and FEP-03/507/2016/C.	51^st Monthly EM&A Report	12 March 2021
	52^nd Monthly EM&A Report	13 April 2021
	53^rd Monthly EM&A Report	11 May 2021

5. MoNITORING RESULTS

5.1 Waste Management

The waste generated from this Project includes inert construction and demolition (C&D) materials, and non-inert C&D materials. Non-inert C&D materials are made up of general refuse and recyclable wastes such as plastics and paper/cardboard packaging waste. Steel materials generated from the project are also grouped into non-inert C&D materials as the materials were not disposed of with other inert C&D materials.

5.1.1 CCGT Unit No. 1

With reference to relevant handling records and trip tickets of CCGT Unit No. 1, the quantities of different types of waste generated in the reporting period are summarised in Table 5.1. Details of waste management data are presented in Appendix F1.

Table 5.1 Quantities of Waste Generated from CCGT Unit No. 1

Reporting Month	Quantity
	Inert C&D Materials ^{(a) (b)}	Chemical Waste ^(d)	Non-inert C&D Materials
			General Refuse ^(c)	Recycled materials
			General Refuse ^(c)	Paper/cardboard	Plastics	Metals
	(in '000m³)	(in'000 kg)	(in '000m³)	(in'000 kg)	(in'000 kg)	(in'000 kg)
March 2021	0	0	0	0	0	0
April 2021	0	0	0	0	0	0
May 2021	0	0	0	0	0	0
Notes: (a) Inert C&D materials include bricks, concrete, building debris, rubble and excavated spoil. (b) The inert C&D materials generated from the Project were sent to Tuen Mun Area 38 Fill Bank during the reporting period. (c) The general refuse generated from the Project was sent to WENT landfill during the reporting period. (d) Chemical waste includes waste oil and spent pipes with lubricating oil. It is assumed density of waste oil to be 0.8 kg/L. (e) The cut-off date for waste management data during the reporting period: n March 2021: 31 March 2021; n April 2021: 30 April 2021; and n May 2021: 31 May 2021.

The estimated amount of waste generated from the Project predicted by EIA Report and the actual cumulative quantities of waste generated from the construction phase of the Project during the reporting period are presented in Table 5.2. Mitigation measures recommended in EIA Report were implemented by the Contractor as far as practicable and were considered effective in reducing the total quantity of wastes generated during the reporting period.

Table 5.2 Comparison of Estimated Amount of Waste and Actual Amount Generated during the Reporting Period for CCGT Unit No. 1

Type of Material	Estimated Amount for Project	Actual Amount during Reporting Period
Total Amount of Inert C&D Materials disposed as Public Fill ^(a) (in '000m³)	80.96	0
Amount of Inert C&D Materials Reused in the Contract (in '000m³)	8.89	0
Amount of Inert C&D Materials Reused in Other Projects (in '000m³)	-	0
Total Amount of Non-Inert C&D Materials and General Refuse disposed at WENT Landfill ^(b) (in '000m³)	1.525	0
Chemical Waste ^(c) (in '000kg)	10.20	0
Notes: (a) Inert C&D materials include site clearance waste, excavated materials, building works generated from construction of CCGT Unit No.1 for the entire project. (b) Non-inert C&D materials include site clearance waste, excavated materials, building works generated from construction period of CCGT Unit No.1 for the entire project. The amount of general refuse was estimated 780 kg per day for construction of CCGT Unit No.1. There are 73 working days in the reporting period. (c) Chemical waste includes waste oil and spent pipes with lubricating oil. Density of waste oil is assumed to be 0.8 kg/L. There are 3 months in the reporting period.

5.1.2 CCGT Unit No. 2

With reference to relevant handling records and trip tickets of CCGT Unit No. 2, the quantities of different types of waste generated in the reporting period are summarised in Table 5.3. Details of waste management data are presented in Appendix F2.

Table 5.3 Quantities of Waste Generated from CCGT Unit No. 2

Reporting Month	Quantity
	Inert C&D Materials ^{(a) (b)}	Chemical Waste ^(d)	Non-inert C&D Materials
			General Refuse ^(c)	Recycled materials
			General Refuse ^(c)	Paper/cardboard	Plastics	Metals
	(in '000m³)	(in'000 kg)	(in '000m³)	(in'000 kg)	(in'000 kg)	(in'000 kg)
March 2021	1.386	1.120	0.072	0	0	0
April 2021	1.578	0	0.009	0	0	10.850
May 2021	1.512	0	0.023	0	0	0
Notes: (a) Inert C&D materials include bricks, concrete, building debris, rubble and excavated spoil. (b) The inert C&D materials generated from the Project were sent to Tuen Mun Area 38 Fill Bank during the reporting period. (c) The general refuse generated from the Project was sent to WENT landfill during the reporting period. (d) Chemical waste includes waste oil and spent pipes with lubricating oil. It is assumed density of waste oil to be 0.8 kg/L. (e) The cut-off date for waste management data during the reporting period: n March 2021: 31 March 2021; n April 2021: 30 April 2021; and n May 2021: 31 May 2021.

The estimated amount of waste generated from the Project predicted by EIA Report and the actual cumulative quantities of waste generated from the construction phase of the Project during the reporting period are presented in Table 5.4. Mitigation measures recommended in EIA Report were implemented by the Contractor as far as practicable and were considered effective in reducing the total quantity of wastes generated during the reporting period.

Table 5.4 Comparison of Estimated Amount of Waste and Actual Amount Generated during the Reporting Period for CCGT Unit No. 2

Type of Material	Estimated Amount for Project	Actual Amount during Reporting Period
Total Amount of Inert C&D Materials disposed as Public Fill ^(a) (in '000m³)	85.050	4.138
Amount of Inert C&D Materials Reused in the Contract (in '000m³)	12.010	0.338
Amount of Inert C&D Materials Reused in Other Projects (in '000m³)	-	0
Total Amount of Non-Inert C&D Materials and General Refuse disposed at WENT Landfill ^(b) (in '000m³)	1.525	0.104
Chemical Waste ^(c) (in '000kg)	10.20	1.120
Notes: (a) Inert C&D materials include site clearance waste, excavated materials, building works generated from construction of CCGT Unit No.2 for the entire project. (b) Non-inert C&D materials include site clearance waste, excavated materials, building works generated from construction period of CCGT Unit No.2 for the entire project. The amount of general refuse was estimated 780 kg per day for construction of CCGT Unit No.2. There are 73 working days in the reporting period. (c) Chemical waste includes waste oil and spent pipes with lubricating oil. Density of waste oil is assumed to be 0.8 kg/L. There are 3 months in the reporting period.

6. ENVIRONMENTAL SITE INSPECTION

6.1 CCGT Unit No. 1

Joint weekly site inspections were conducted by representatives of the Contractors, CAPCO Project Team and ET on 4, 11, 18 and 25 March 2021; 1, 8, 15, 22 and 29 April 2021; and 6, 13, 21 and 27 May 2021. The representative of the IEC joined the site inspections on 18 March 2021, 8 April 2021 and 13 May 2021. No non-compliance was recorded during the site inspections.

Findings and recommendations for the site inspection in this reporting period are summarised as follows:

Month	Date	Findings and Recommendations
March 2021	4 March 2021	There were no major observations.
	11 March 2021	There were no major observations.
	18 March 2021	There were no major observations. Regarding the planter audit, CAPCO was recommended to closely monitor BPT800 and BPT766.
	25 March 2021	There were no major observations.
April 2021	1 April 2021	There were no major observations.
	8 April 2021	There were no major observations. Regarding the planter audit, CAPCO was recommended to closely monitor BPT800, BPT766, BPT792, BPT942 and BPT945, provide enough space between planters, provide appropriate tree tags and clean the weeds and remove foreign objects regularly.
	15 April 2021	There were no major observations.
	22 April 2021	There were no major observations.
	29 April 2021	There were no major observations.
May 2021	6 May 2021	There were no major observations.
	13 May 2021	There were no major observations. Regarding the planter audit, CAPCO was recommended to closely monitor BPT800, BPT766, BPT792, BPT942 and BPT945, provide appropriate tree tags and clean the weeds and remove foreign objects regularly.
	21 May 2021	There were no major observations.
	27 May 2021	There were no major observations.

All follow-up actions requested by ET and IEC during the site inspections were undertaken as reported by CAPCO and the Contractors. The abovementioned environmental issues had been addressed and mitigated during the reporting period.

6.2 CCGT Unit No. 2

Findings and recommendations for the site inspection in this reporting period are summarised as follows:

Month	Date	Findings and Recommendations
March 2021	4 March 2021	The Contractor (Gammon) was reminded to cover the stockpile of cement bags entirely by impervious sheeting.
	11 March 2021	There were no major observations.
	18 March 2021	The Contractor (Gammon) was reminded to dispose of the washing machine properly.
	25 March 2021	The Contractor (Gammon) was reminded to provide drip tray for chemical container.
April 2021	1 April 2021	The Contractor (Gammon) was reminded to provide sufficient watering along the haul road for dust suppression.
	8 April 2021	There were no major observations.
	15 April 2021	There were no major observations.
	22 April 2021	There were no major observations.
	29 April 2021	The Contractor (Gammon) was reminded to provide sufficient watering along the haul road for dust suppression.
May 2021	6 May 2021	There were no major observations.
	13 May 2021	There were no major observations.
	21 May 2021	The Contractor (Gammon) was reminded to provide sufficient watering throughout the site and for breaking works for dust suppression.
	27 May 2021	The Contractor (Gammon) was reminded to cover the stockpiles entirely with impervious sheets or provide watering for dust suppression.

All follow-up actions requested by ET and IEC during the site inspections were undertaken as reported by CAPCO and the Contractor. The abovementioned environmental issues had been addressed and mitigated during the reporting period.

7. Environmental Non-conformance

7.1.1 Summary of Monitoring Exceedance

No environmental monitoring is required during construction of CCGT Units No.1 and No.2.

7.1.2 Summary of Environmental Non-compliance

No non-compliance event was recorded during the reporting period for CCGT Units No.1 and No.2.

7.1.3 Summary of Environmental Compliant

No environmental complaint was received during the reporting period for CCGT Units No.1 and No.2.

7.1.4 Summary of Environmental Summon and Successful Prosecution

No summon or prosecution was received during the reporting period for CCGT Units No.1 and No.2.

8. Conclusions

This 18^th quarterly Environmental Monitoring and Audit (EM&A) Report presents the EM&A works carried out during the period from 1 March 2021 to 31 May 2021 for CCGT Unit No. 1 and CCGT Unit No. 2 in accordance with the EM&A Manual and the requirements of EP-507/2016/C and FEP-03/507/2016/C.

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

No environmental complaint, summon or prosecution was received during the reporting period.

The Contractor have implemented possible and feasible mitigation measures to mitigate the potential environmental impacts during construction. The ET will continue to keep track of the EM&A programme to ensure compliance of environmental requirements and the effectiveness and efficiency of the mitigation measures implemented. If necessary, the Contractor will provide more mitigation measures to further alleviate the impacts.

The construction of CCGT Unit No. 1 was completed on 31 May 2021. The ET will prepare a Final EM&A Review Report for CCGT Unit No. 1 to summarise the findings of the construction EM&A programme.