Environmental Team for Hung Shui Kiu/Ha Tsuen New Development Area Stage 1 Works

EXECUTIVE SUMMARY

This is the 7th Monthly Environment Monitoring and Audit (EM&A) Report for Hung Shui Kiu/ Ha Tsuen New Development Area Stage 1 Works – Site Formation and Engineering Infrastructure (the Project). This report was prepared by Acuity Sustainability Consulting Limited under Service Contract No. WD/02/2021 Environmental Team for Hung Shui Kiu / Ha Tsuen New Development Area Stage 1 Works – Site Formation and Engineering Infrastructure (hereinafter called the “Service Contract”). This report documents the findings of EM&A works during the reporting period from 1 June to 30 June 2023.

The project construction commenced on 5 December 2022 and the construction phase EM&A programme started on 6 December 2022.

Key Construction Works in the Reporting Period

A summary of construction activities undertaken during the reporting period is presented below:

· Dewatering;

· Erection of formwork for manhole;

· Erection of metal scaffolding for manhole;

· Rectification works of the cut slope; and

· Connecting the box culvert to the existing drainage pipe.

Environmental Monitoring and Audit Programme

The monthly EM&A programme was undertaken by the ET in accordance with the Updated EM&A Manual. A summary of the monitoring and audit activities during the reporting period is presented below:

Table I Summary of EM&A activities in the Reporting Period

EM&A Activities	Date
Water Quality Monitoring	1, 3, 5, 7, 9, 13, 15, 17, 19, 21, 23, 27 and 29 June 2023
Weekly Environmental Site Inspection	8, 15, 23 and 30 June 2023

Breaches of Action and Limit Levels

A summary of the environmental exceedances of the reporting month is tabulated in Table II.

Table II Summary of Exceedance in the Reporting Period

Environmental Monitoring	Parameter	No. of non-project related exceedances		Total No. of non-project related exceedances	No. of exceedances related to the the project		Total No. of exceedance related to the project
Environmental Monitoring	Parameter	AL	LL	Total No. of non-project related exceedances	AL	LL	Total No. of exceedance related to the project
Water Quality	pH	0	0	0	0	0	0
	DO	0	0	0	0	0	0
	Turbidity	0	3	3	0	0	0
	SS	0	6	6	0	0	0

Water Quality

All water quality monitoring was conducted as scheduled in the reporting period. Three (3) limit level exceedances of turbidity and six (6) limit level exceedances of Suspended Solids were recorded during impact water quality monitoring in the reporting period. After investigation, nine exceedances are considered as non-project related.

Complaint Log

No environmental complaint was received in the reporting period.

Notification of Summons and Successful Prosecutions

No notification of summons or successful prosecutions was received in the reporting period.

Reporting Changes

There was no reporting change in the reporting period.

Future Key Issues

The major site activities for the coming months are summarized below:

· Construction of manhole;

· Pipe laying works; and

· Drilling of borehole for pond deposit investigation

1 Introduction Project Background

1.1. The HSK/HT NDA occupies an area of approximately 714 ha and is located in the north-western part of the New Territories, midway between Tuen Mun and Tin Shui Wai New Towns. It is bounded by Tin Ying Road/ Ping Ha Road/ Kiu Hung Road to the east, Castle Peak Road to the south, Kong Sham Western Highway (“KSWH”) to the west, and Tin Ha Road, Lau Fau Shan Road and hillslopes along Deep Bay Road to the north. In the wider context, the proposed Project is strategically located in close proximity to Shenzhen, particularly Shenzhen Bay Control Point, Qianhai, and Shekou and efficiently linked with the Greater Pearl River Delta (“PRD”) region. The KSWH and the possible highway connecting the Project area with the Tuen Mun - Chek Lap Kok Link, the Hong Kong International Airport, Kwai Tsing Container Terminals, and the Hong Kong-Zhuhai-Macao Bridge and its Boundary Crossing facilities. New strategic highway infrastructure connecting the Project area with the urban area will also be planned to address the long-term development needs of North West New Territories (“NWNT”). The proposed West Rail Hung Shui Kiu Station (“HSK Station”), with its alignment traversing the Project allows convenient and efficient access to and from the Project area.

1.2. The works under HSK/HT NDA Stage 1 works comprises the construction of interim section of new distributor road (Road D1) (hereinafter call “the Project”) that is a designated project (“DP”) (defined under item A1 in Schedule 2 of the Environmental Impact Assessment Ordinance) connecting the site for the first batch of multi-storey buildings (“MSBs”) at Sites 3-6, 3-7 and 3-8 to the existing Ha Tsuen Roundabout of KSWH.

1.3. The HSK/HT NDA Stage 1 works would be implemented under a fast track programme, involving various complex tasks for providing infrastructure and forming the five development sites to be conducted in parallel, so as to tie in with operation of the development MSBs or other land-efficient means and population intake of the village resite house in 2025 tentatively.

1.4. The scope of works for interim section of Road D1 comprise the followings:

(i) Site formation works for Site 3-7 and Site 3-8;

(ii) Land decontamination works including ground investigation works for Site 3-7 and Site 3-8 and other areas within the boundaries of the site;

(iii) Construction of a district distributor road connecting to the existing interchange underneath KSWH, construction of local roads, widening of a section of Fung Kong Tsuen Road and associated junction/ road improvements; and

(iv) Engineering infrastructure works comprising sewerage works (including a pumping station), drainage works (including a detention pond), waterworks and landscaping works.

1.5. Pursuant to the Environmental Impact Assessment Ordinance (EIAO), the Director of Environmental Protection Department (EPD) granted the Environmental Permits (Nos.: EP-526/2017, EP-527/2017, EP-528/2017, EP-529/2017, EP-530/2017 and EP-531/2017) to the CEDD for the Project. The HSK/HT NDA Stage 1 works comprise the interim section of Road D1 that is governed under Environmental Permit No. EP-528/2017. No other DPs are identified within the scope of HSK/HT NDA Stage 1 works.

1.6. Acuity Sustainability Consulting Limited (ASCL) is commissioned by Civil Engineering and Development Department (CEDD) to undertake the Environmental Team (ET) services as required and/or implied, both explicitly and implicitly, in the Environmental Permit (EP), Environmental Impact Assessment (EIA) Report (Register No. AEIAR-203/2016) and Environmental Monitoring and Audit (EM&A) Manual for the Project; and to carry out the EM&A programme in fulfillment of the EIA Report’s, EM&A requirements under Service Contract No. WD/02/2021.

1.7. For the construction phase of the Project, the construction has been commenced on 5 December 2022 and the construction phase EM&A programme was started on 6 December 2022.

1.8. This is the 7th Monthly EM&A Report summarizing the key findings of the construction phase EM&A programme from 1 June to 30 June 2023 (the reporting period) and is submitted to fulfill the requirements in Condition 3.4 of EP-528/2017 and Section 15.3 of the Updated EM&A Manual of the Project.

Construction Works Programme and Construction Works Area

1.9. The construction works commenced on 5 December 2022. The construction works programme and the construction works area of the Project are shown in Appendix A and Figure 1 respectively. A summary of construction activities undertaken during this reporting period is presented below:

· Dewatering;

· Erection of formwork for manhole;

· Erection of metal scaffolding for manhole;

· Rectification works of the cut slope; and

· Connecting the box culvert to the existing drainage pipe.

Project Organization

1.10. Different parties with different levels of involvement in the Project organization include:

· Project Proponent: Civil Engineering and Development Department (CEDD)

· Supervisor / Engineer’s Representative (ER): Mott MacDonald Hong Kong Limited

· Contractor: China Geo-Engineering Corporation

· Environmental Team (ET): Acuity Sustainability Consulting Limited

· Independent Environmental Checker (IEC): Lam Environmental Services Limited

1.11. The key personnel contact names and numbers are summarized in Appendix B.

License, Notifications and Permits

1.12. A summary of the relevant permits, licences, and/or notifications on environmental protection for this Project is presented in Table 1.1.

Table 1.1 Status of Environmental License, Notifications and Permits

Permit / License No.	Valid Period		Status
Permit / License No.	From	To	Status
Environmental Permit
EP-528/2017	21/02/2017	N/A	Valid
Notification pursuant to Air Pollution Control (Construction Dust) Regulation
467008	29/04/2021	N/A	Valid
Billing Account for Disposal of Construction Waste
7040500	13/05/2021	N/A	Valid
Registration of Chemical Waste Producer
467007	29/04/2021	N/A	Valid
Effluent Discharge License under Water Pollution Control Ordinance
WT00043404-2023	26/04/2023	30/04/2028	Valid

Submission Status under Environmental Permit

1.13. The summary of submission status under Environmental Permit EP-528/2021 was presented in Appendix K.

2 Air Quality Monitoring Requirement

2.1. In accordance with the Updated EM&A Manual, the ET shall carry out impact monitoring during the construction phase of the Project. 1-hour Total Suspended Particulates (TSP) should be conducted at a frequency of at least three times in every six days when the highest dust impact occurs.

Monitoring Location

2.2. According to the Updated EM&A Manual, the designated locations for impact air quality monitoring are listed in Table 2.1 and their locations are shown in Figure 2.1.

Table 2.1 Summary of Proposed Air Quality Monitoring Location

Station(s)	EIA ID	Monitoring Location
AM23	P1032	Planned Port Back-up, Storage and Workshop (at Site 3-6)
AM24	P1501	Planned Port Back-up, Storage and Workshop (at Site 3-8)
AM25a	-	San Wai Sewage Treatment Plant near the Planned Port Back-up, Storage and Workshop (at Site 3-14)

2.3. In accordance with Table A2.4 in Appendix A of the Updated EM&A Manual, impact air quality monitoring will be carried out at monitoring stations AM23, AM24 and AM25a after the occupation of the planned port back-up, storage, and workshop.

2.4. As confirmed with ER, the planned port back-up, storages, and workshops at Site 3-6, Site 3-8 and Site 3-14 are not constructed yet. Thus, the impact air quality monitoring will be carried out at AM23, AM24 and AM25a after the construction and occupation of these planned port back-up, storages, and workshops. No air quality monitoring was carried out in this reporting month.

3 Water Quality Monitoring Requirement

3.1. In accordance with the Updated EM&A Manual, impact water quality monitoring should be carried out three days per week at all designated monitoring stations during the construction period. The interval between two sets of monitoring should not be less than 36 hours.

3.2. Replicate in-situ measurements of dissolved oxygen (DO), temperature, turbidity, pH, and suspended solids (SS) for each independent sampling event shall be collected to ensure a robust statistically interpretable database.

Monitoring Location

3.3. Impact water quality monitoring was conducted at 6 monitoring stations which is summarized in Table 3.1. The location of water quality monitoring stations is shown in Figure 3.1.

Table 3.1 Summary of Impact Water Quality Monitoring Stations

Station	Description	Easting	Northing
U1	Upstream Station	815936	834150
U2	Upstream Station	816240	834009
SW	Gradient station (Downstream of U1 and the construction site of Road D1)	816304	834321
HT	Gradient station (Downstream of U2 and the construction site of Road D1)	816866	834314
TKW1	Gradient station (Downstream of the construction site of Road D1)	816563	834686
TKW	Gradient station (Downstream of TKW1 and construction site of Road D1)	816594	834690

Remark: The original water quality monitoring station DB was surrounded by scrubs and vegetation and located along the steep slope of the hill to south-west of Fung Kong Tsuen. The watercourse runs towards the north of Road D1, but no downstream watercourse was identified. Thus, water quality monitoring station DB is not recommended for this Contract without upstream/ downstream monitoring locations identified. An updated water quality monitoring stations TKW and TKW1 were proposed by ET and approved by IEC and EPD.

Monitoring Parameter and Frequency

3.4. The parameters that have been selected for measurement in-situ and in the laboratory are those that are either determined in the EIA to be those that are likely be affected by the construction works or a standard check on water quality conditions. Parameters to be measured in the impact water quality monitoring are listed in Table 3.2.

Table 3.2 Parameters measured in the Impact Water Quality Monitoring

Parameters	Units	Abbreviations	Frequency
In-situ measurements			3 days per week
Dissolved oxygen	mg/L	DO
Dissolved oxygen saturation	%	DO%
Temperature	℃	-
pH	-	-
Turbidity	NTU	-
Laboratory measurements
Suspended Solids	mg/L	SS

3.5. Monitoring location and position, time, sampling depth, weather conditions and any special phenomena or work underway nearby was also recorded.

Sampling Depths & Replication

3.6. During impact water quality monitoring, each station was sampled, and measurements / water samples were taken at three depths, 1 m below the water surface, mid-depth and 1 m above riverbed. If the water depth was less than 6 m, mid-depth might be omitted. If the water depth was less than 3 m, mid-depth sampling only. For in situ measurements, duplicate readings were made at each water depth at each station. Duplicate water samples were collected at each water depth at each station.

Monitoring Equipment

3.7. A multi-parameter meter (Model HORIBA U-53) was used to measure DO, turbidity, salinity, pH, and temperature.

Dissolved Oxygen and Temperature Measuring Equipment

3.8. The instrument for measuring dissolved oxygen and temperature should be portable and weatherproof complete with cable, sensor, and use DC power source. The equipment was capable of measuring:

· A dissolved oxygen level in the range of 0 – 20 mg/L and 0 - 200% saturation; and

· The temperature within 0 - 45 ℃.

3.9. The equipment had a membrane electrode with automatic temperature compensation complete with a cable.

3.10. Sufficient stocks of spare electrodes and cables were available for replacement where necessary.

Turbidity Measurement Equipment

3.11. Turbidity was measured in situ by using the nephelometric method. The instrument was portable and weatherproof using a DC power source complete with cable, sensor and comprehensive operation manuals. The equipment was capable of measuring turbidity between 0 and 1000 NTU. The probe cable was not less than 25 m in length.

Water Depth Detector

3.12. A portable, battery-operated and handheld echo sounder was used for the determination of water depth at each designated monitoring station.

3.13. The instrument was consisting of a potentiometer, a glass electrode, a reference electrode and a temperature-compensating device. It was readable to 0.1 pH value in a range of 0 to 14. Standard buffer solutions of at least pH 7 and pH 10 were used for calibration of the instrument before and after use.

Sample Container and Storage

3.14. Following collection, water samples for laboratory analysis were stored in high density polyethylene bottles with appropriate preservatives added, packed in the ice (cooled to 4 ℃ without being frozen). The sample were delivered to Acumen Laboratory and Testing Limited (ACUMEN) (HOKLAS Registration No. 241) and analysed as soon as possible after collection of the water samples. Sufficient volume of samples was collected to achieve the detection limit.

Calibration of In Situ Instruments

3.15. The pH meter, DO meter and turbidimeter were checked and calibrated before use. DO meter and turbidimeter were certified before use and subsequently recalibrated at quarterly basis throughout all stage of water quality monitoring programme. Response of sensors and electrodes were checked with certified standard solutions before each use. Wet bulb calibration for a DO meter was carried out before measurement.

3.16. For the on-site calibration of field equipment (Multi-parameter Water Quality System), the BS 1427:2009, “Guide to on-site test methods for analysis of waters” was observed.

Back-up Equipment

3.17. Sufficient stocks of spare parts were maintained for replacements when necessary. Backup monitoring equipment was also be made available so that monitoring can proceed uninterrupted even when some equipment is under maintenance, calibration, etc.

3.18. Table 3.3 summarizes the equipment used in the water quality monitoring programme. Copies of the calibration certificates of multi-parameter water quality monitoring system are shown in Appendix E.

Table 3.3 Water Quality Monitoring Equipment

Equipment	Brand and Model Number (Serial Number)	Quantity
Multi-parameter Water Quality System	HORIBA U-53 (PORBNFNT)	1

Monitoring Methodology

3.19. A multi-parameter meter (Model HORIBA U-53) was used to measure DO, turbidity, salinity, pH and temperature.

Operating/ Analytical Procedures

3.20. At each measurement, two consecutive measurements of DO concentration, DO saturation, salinity, turbidity, pH and temperature were taken. The probes were retrieved out of water after the first measurement and then re-deployed for the second measurement. Where the difference in the value between the first and second readings of each set was more than 25% of the value of the first reading, the reading was discarded, and further readings were taken.

Laboratory Analytical Methods

3.21. Duplicate samples from each independent sampling event are required for all parameters. Analysis of suspended solids were carried out by ACUMEN and comprehensive quality assurance and control procedures in place in order to ensure the quality and consistency of the results. The reporting limit and detection limit are provided in Table 3.4 and the detection limits for the in-situ measurement are shown in Table 3.5.

Table 3.4 Method for Laboratory Analysis for Water Samples

Determinant	Proposed Method	Limit of Reporting
Total Suspended Solid (SS)	APHA 2540 D	1.0 mg/L

Table 3.5 Detection Limits and Precision for Water Quality Parameters

Parameters	Detection limit	Accuracy	Precision
DO	0 – 20 mg/L	± 0.1 mg/L	25%
Temperature	0 – 45 ℃	± 0.1 ℃
pH	0 – 14	± 0.1
Turbidity	0 – 1000 NTU	± 2 NTU

QA/QC Requirements

Decontamination Procedures

3.22. Water sampling equipment used during the course of the monitoring process was decontaminated by manual washing and rinsed with distilled water after each sampling event. All of the disposable components/ accessories were discarded after sampling.

Sampling Management and Supervision

3.23. All sampling bottles were labelled with the sample ID numbers (including the sampling station), and sampling date. Water samples were dispatched to the testing laboratory for analysis as soon as possible. All the collected samples were stored in a cool box to keep the temperature less than 4 ℃ but without frozen. All water samples were handled under chain of custody protocols and relinquished to the laboratory representatives at locations specified by the laboratory.

Quality Control Measures for Sample Testing

3.24. Quality control of laboratory analysis of water samples was performed by ACUMEN for every batch of 20 samples:

· One method blank; and

· One set of QC sample

Event and Action Plan

3.25. Should any non-compliance of the criteria occur, action in accordance with the Event and Action Plan in Appendix H shall be followed. Investigation of the exceedances of environmental quality performance limits should be conducted, and the ET will immediately notify the IEC and the EPD, as appropriate. The notification should be followed up with advice to the IEC and the EPD on the results of the investigation, proposed actions and success of the action taken, with any necessary follow-up proposals.

Results and Observations

3.26. All water quality monitoring was conducted as scheduled in the reporting month. The water quality monitoring schedule for this reporting month is shown in Appendix D.

3.27. Due to insufficient water flow at water quality monitoring station U1 on 2, 4 and 6 May 2023, the water quality monitoring at U1 was cancelled.

3.28. The monitoring results and graphical presentation of water quality monitoring at the monitoring stations are shown in Appendix F.

3.29. During the reporting month, three (3) limit level exceedances of turbidity and six (6) limit level exceedances of SS were recorded during impact water quality monitoring in the reporting period. Summaries of exceedance records are shown in Table 3.6 and Table 3.7.

Table 3.6 Summary of Exceedance Records of Water Quality Monitoring

Date	Station	Parameter (Unit)	Depth-averaged Measured Value	Exceedance		Exceedances due to the Project (Y/N)
Date	Station	Parameter (Unit)	Depth-averaged Measured Value	AL	LL	Exceedances due to the Project (Y/N)
01/06	TKW1	Turbidity (NTU)	202.5		ü	N
	TKW		190.0		ü	N
	SW		33.8		ü	N
	TKW1	Suspended Solid (mg/L)	46.0		ü	N
	TKW		36.5		ü	N
	SW		15.0		ü	N
05/06	TKW1	Suspended Solid (mg/L)	22.5		ü	N
05/06	TKW	Suspended Solid (mg/L)	28.5		ü	N
09/06	SW	Suspended Solid (mg/L)	21.5		ü	N

Table 3.7 Summary of Exceedance Records of Water Quality Monitoring

Parameter	No. of non-project related exceedances		Total No. of non-project related exceedances	No. of exceedance related to the Project		Total No. of exceedance related to the Project
Parameter	AL	LL	Total No. of non-project related exceedances	AL	LL	Total No. of exceedance related to the Project
pH	0	0	0	0	0	0
Dissolved Oxygen	0	0	0	0	0	0
Turbidity	0	3	3	0	0	0
Suspended Solids	0	6	6	0	0	0

3.30. In view of the non-project related exceedances of action and limit levels record frequently in December 2022, review of the water quality baseline condition was proposed to reflect the baseline condition during the dry season and to reduce the number of false alarms.

3.31. A baseline water quality monitoring during the dry season was conducted between 6 December 2022 and 30 December 2022. The updated Baseline Monitoring Report was submitted to IEC and verified on 24 March 2023, and the derived wet season action and limit levels was adopted to review the water quality monitoring results during the reporting period.

3.32. The derived dry season action and limit levels for water quality monitoring will be applied to the monitoring period between November and March, and the derived wet season action and limit levels will be applied to April to October. The (wet season) action and limit levels for this reporting period are presented in Table 3.8.

Table 3.8 Derived Wet Season Action and Limit Levels for Water Quality

Parameters	Action Levels	Limit Levels
SW
DO (mg/L) (3)	3.7	3.5
Turbidity (NTU)	21.4	22.9
SS (mg/L)	9.7	9.9
pH	Less than 6.6 or greater than 8.4	Less than 6.5 or greater than 8.5
HT
DO (mg/L) (3)	2.4	2.2
Turbidity (NTU)	32.3	32.6
SS (mg/L)	34.0	38.7
pH	Less than 6.6 or greater than 8.4	Less than 6.5 or greater than 8.5
TKW1
DO (mg/L) (3) (4)	2.8	2.8
Turbidity (NTU)	27.9	29.2
SS (mg/L)	16.0	18.4
pH	Less than 6.6 or greater than 8.4	Less than 6.5 or greater than 8.5
TKW
DO (mg/L) (3)	2.5	2.4
Turbidity (NTU)	24.2	24.6
SS (mg/L)	19.8	21.6
pH	Less than 6.6 or greater than 8.4	Less than 6.5 or greater than 8.5

Notes:

(1) For DO, non-compliance of the water quality limit occurs when monitoring result is lower than the limit.

(2) For Turbidity and Suspended Solids (SS), non-compliance of the water quality limit occurs when monitoring result is higher than the limit.

(3) The derived Action Levels and Limit Levels for dissolved oxygen only apply to mid-depth.

(4) The derived action and limit level for DO at TKW1 come up with the same value at 2.8 mg/L. If monitoring results exceeded 2.8 mg/L, it will be considered as limit level exceedance, actions according to the Event and Action Plan will be carried out.

3.33. After confirmation of exceedance of the water quality monitoring results, ET has sent the emails for Notification of Exceedance (NOE) to inform relevant parties (i.e., EPD, ER, IEC and Contractor) about the exceedances. After investigation, nine (9) exceedances are considered as non-project related.

5 Environmental Site Inspection and Audit

5.1. Site inspections were carried out by ET on a weekly basis to monitor the implementation of proper environmental pollution control mitigation measures for the Project. During the reporting period, site inspections were carried out on 8, 15, 23 and 30 June 2023. Joint IEC site inspection was carried out on 30 June 2023.

5.2. Bi-weekly landscape and visual site audits were carried out by a Registered Landscape Architect (RLA) on 8 and 23 June 2023. No particular observation was recorded in this reporting period.

5.3. During site inspection in the reporting period, no non-conformance was identified. Key observations and reminders during the site inspection and landscape and visual site audit are described in Table 5.1.

Table 5.1 Summary of Site Inspections and Recommendations

Inspection Date	Key Observation / Reminders	Follow-up Action
8 June 2023	No major environmental deficiency was observed during the site inspection.	Nil
15 June 2023	1. Overflow was observed at the decontamination area to detention pond, the Contactor weas reminder to divert the site effluent from detention pond back to the decontamination area.	1. The site effluent was diverted from the detention pond back to the decontamination area.
23 June 2023	1. The Contactor was reminder to properly cover the dusty material to reduce surface runoff at the decontamination area.	1. The dusty material was properly covered to reduce surface runoff at the decontamination area.
30 June 2023	1. pH value (9.56) displayed on WetSep was observed exceed the discharge license requirement. The Contractor was remaindered that all discharge of site effluent shall be meet the requirement specified in the discharge license.	1. After being confirmed with the Contractor the discharge limit for pH values specified in discharge license was 6 – 10, no exceedance of pH value was observed during the next weekly site inspection.

Implementation Status of Environmental Mitigation Measures

5.4. According to the EIA Report, EP and the Updated EM&A Manual, the mitigation measures detailed in the documents are recommended to be implemented during the construction phase. A summary of the Project Implementation Schedule is provided in Appendix C.

6 Environmental Non-Conformance Summary of Exceedances

6.1. Three (3) limit level exceedances of turbidity and six (6) limit level exceedances of SS were recorded during impact water quality monitoring in the reporting period. After investigation, nine exceedances are considered as non-project related.

6.2. Should the monitoring results of the environmental monitoring parameters at any designated monitoring stations indicate that the Action / Limit Levels are exceeded, the actions in accordance with the Event and Action Plans in Appendix H would be carried out.

6.3. Bi-weekly landscape and visual site audits were carried out by a Registered Landscape Architect (RLA) on 8 and 23 June 2023. No particular observation was recorded during the audits.

6.4. Should the audit results indicate that the nonconformity occasion, the actions in accordance with the Event and Action Plans in Appendix H would be carried out.

Summary of Environmental Non-Compliance

6.5. No environmental non-compliance was recorded in the reporting period.

Summary of Environmental Complaint

6.6. No environmental complaint was received in the reporting period. The Cumulative Complaint Log is presented in Appendix J.

Summary of Environmental Summon and Successful Prosecution

6.7. There was no successful environmental prosecution or notification of summons received since the Project commencement. The Cumulative Log for environmental summon and successful prosecution is presented in Appendix J.

7 Future Key Issues

7.1. Works to be undertaken in the next reporting period are summarized below:

· Construction of manhole;

· Pipe laying works; and

· Drilling of borehole for pond deposit investigation

7.2. Potential environmental impacts arising from the above construction activities are mainly associated with construction dust impact, noise impact, water quality impact and waste management.

Recommendation

7.3. The key environmental mitigation measures for the Project in the coming reporting period associated with above construction activities will include:

Dust

· Regular watering to reduce dust emissions from exposed site surface;

· Stockpile of dusty materials shall be covered entirely by impervious sheeting;

· Provide vehicles washing facilities at all site exits to wash away any dusty materials from vehicle body;

· NRMM Labels should be displayed on the applicable equipment on site by the Contractor;

· Provision of water sprinklers along the haul road for dust suppression; and

· All vehicle and plant should be cleaned before they leave a construction site.

Noise

· Only well-maintained plant should be operated on-site, and plant should be maintained regularly during the construction programme;

· Quality Powered Mechanical Equipment (QPME) should be adopted as far as possible.

Water Quality

· No effluent discharge would be allowed before acquired the effluent discharge license.

· Surface run-off from construction sites should be discharged into stormwater drains via adequately designed sand/ silt removal facilities;

· Channels/ earth bunds/ sandbags barriers should be provided on site to properly direct stormwater to silt removal facilities;

· Silt removal facilities, channels and manholes should be maintained, and the deposited silt and grit should be removed regularly;

· Open stockpiles of construction materials on sites should be covered with tarpaulin or similar fabric during rainstorms;

· Perimeter channels should be provided on site boundaries where necessary to intercept stormwater run-off from outside the site so that it will not wash across the site;

· Catchpits and perimeter channels should be constructed in advance of site formation works and earthworks.

Waste Management

· Provision of sufficient waste disposal points and regular collection of waste;

· Regular cleaning and maintenance programme for drainage system; and

· Chemical containers shall be stored with drip tray underneath.

Landscape and Visual

· Construction activities shall be carefully designed to minimize impact on existing retained trees.

7.4. The construction programme for the Project for the next reporting period is presented in Appendix A.

8 Conclusions and Recommendations Conclusion

8.1. This Monthly EM&A Report presents the EM&A works during the reporting period from 1 June to 30 June 2023 in accordance with the Updated EM&A Manual.

8.2. Three (3) limit level exceedances of turbidity and six (6) limit level exceedances of SS were recorded during impact water quality monitoring in the reporting period. After investigation, nine exceedances are considered as non-project related.

8.3. Environmental site inspections were conducted on 8, 15, 23 and 30 June 2023 by the ET in the reporting period.

8.4. No environmental complaint was received in the reporting period.

8.5. No notification of summons and prosecution was received in the reporting period.

8.6. The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

8.7. No change to the EM&A programme was made in this reporting period.

Comments/ Recommendations

8.8. No further comment or recommendation was provided in this Monthly EM&A Report.

Rev.	Description of Modification	Date
1.	First issue for comments	13/07/2023
2.	Second issue for comments	18/07/2023

Appendix A	Construction Programme
Appendix B	Project Organization Chart
Appendix C	Project Implementation Schedule (PIS)
Appendix D	Environmental Monitoring Schedule
Appendix E	Calibration Certification
Appendix F	Water Quality Monitoring Results and Graphical Presentation
Appendix G	Quality Control Report for Suspended Solids
Appendix H	Event and Action Plan
Appendix I	Waste Generation in the Reporting Month
Appendix J	Summary of Complaint, Notification of summons and Prosecution
Appendix K	Summary of Submission Status under Environmental Permit
Appendix L	Laboratory Report for Suspended Solids
Appendix M	Incident Report (s) for Water Quality Monitoring Exceedance

Month	Actual Quantalities of Inert C&D Materials Generated Monthly						Actual Quantities of C&D Wastes Generated Monthly
	Total Quantity Generated	Hard Rock and Lage Broken Concrete	Reused in the Contract	Reused in other Projects	Disposed as Public Fill	Imported Fill	Metals	Paper / Carboard Packing	Plastics	Chemical Waste	Others e.g., general refuse
	(in ‘000m3)	(in ‘000m3)	(in ‘000m3)	(in ‘000m3)	(in ‘000m3)	(in ‘000m3)	(in ‘000kg)	(in ‘000kg)	(in ‘000kg)	(in ‘000kg)	(in ‘000m3)
Jun 2023	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.065

Table I	Summary of EM&A activities in the Reporting Period
Table II	Summary of Exceedance in the Reporting Period
Table 1.1	Status of Environmental License, Notifications and Permits
Table 2.1	Summary of Proposed Air Quality Monitoring Location
Table 3.1	Summary of Impact Water Quality Monitoring Stations
Table 3.2	Parameters measured in the Impact Water Quality Monitoring
Table 3.3	Water Quality Monitoring Equipment
Table 3.4	Method for Laboratory Analysis for Water Samples
Table 3.5	Detection Limits and Precision for Water Quality Determinates
Table 3.6	Summary of Exceedance Records of Water Quality Monitoring
Table 3.7	Summary of Exceedance Records of Water Quality Monitoring
Table 3.8	Derived Dry Season Action and Limit Levels for Water Quality
Table 5.1	Summary of Site Inspections and Recommendations

Figure 1	Layout Plan for Road D1
Figure 2.1	Air Quality Monitoring Locations
Figure 3.1	Locations of Impact Water Quality Monitoring Stations