Monthly EM&A Report No. 1

A.1 NISHIMATSU Construction Company Limited (“Contractor”) commenced the construction works of Highway Department (HyD) Central Kowloon Route Contract No. HY/2014/09 - Ho Man Tin Access Shaft (“The Project”) on 20 February 2018. This is the first monthly Environmental Monitoring and Audit (EM&A) report presenting the EM&A works carried out during the period from 20 February 2018 to 28 February 2018.

A.2 A summary of the construction works that undertaken for the Project during the reporting month is listed below.

Construction Activities undertaken

· Diaphragm wall construction

· Decant of Housing Authority Mock Up Centre

· Site Establishment

A.3 A summary of regular construction noise and construction dust monitoring activities in this reporting period is listed below:

Regular construction noise monitoring during normal working hours

M-N3

1 time

Construction dust (24-hour TSP) monitoring

M-A3

1 time

Construction dust (1-hour TSP) monitoring

M-A3

1 time

A.4 No construction work was conducted during time period other than normal working hours during this reporting month.

A.5 Inert construction and demolition (C&D) materials and non-inert C&D materials were the wastes that generated from this Project. During the reporting month, 1,343 m³ inert C&D material was generated from the Project. No plastics and no paper/ cardboard packaging were generated and sent to recyclers for recycling during reporting period, respectively. About 16 m³ of non-recyclable non-inert C&D materials, such as general refuse, were disposed of at landfill. No metal and chemical waste were generated during this reporting month.

A.6 Bi-weekly inspection of the implementation of landscape and visual mitigation measures was conducted on 28 February 2018. Details of the audit findings and implementation status are presented in Section 6.

A.7 Joint weekly site inspections were conducted by representatives of the Contractor, Engineer and Contractor’s ET on 21 and 28 February 2018. The representative of IEC joined the site inspection on 28 February 2018. Details of the audit findings and implementation status are presented in Section 6.

A.8 No change has been made from the described in the approved EM&A, such as construction method, mitigation proposals and design changes.

A.9 No exceedance of the Action and Limit Levels of regular construction noise monitoring was recorded during the reporting period.

A.10 No exceedance of the Action and Limit Levels of 24-hour TSP and 1-hour TSP monitoring were recorded during the reporting period.

A.11 No complaint was received during reporting period.

A.12 No summon or prosecution was received in this reporting period.

A.13 No reporting changes were revised in this reporting period.

A.14 A summary of the construction activities to be undertaken in the in the next reporting month is listed below:

Construction Activities to be undertaken

· Diaphragm wall construction

· Decant of Housing Authority Mock Up Centre

· Site RE Office Construction

1. Basic Project Information

1.1. Central Kowloon Route (CKR) is a 4.7 km long dual 3-lane trunk road in Central Kowloon linking Yau Ma Tei Interchange in West Kowloon with the road network on Kai Tak Development and Kowloon Bay in East Kowloon.

1.2. The Central Kowloon Route – Design and Construction Environmental Impact Assessment Report (Register No.: AEIAR-171/2013) was approved with conditions by the Environmental Protection Department (EPD) on 11 July 2013. An Environmental Permit (EP 457/2013) was issued on 9 August 2013. Variations of EP (VEP) was subsequently applied for and the latest EP (EP-457/2013/C) was issued by EPD on 16 January 2017.

1.3. The construction of the CKR had been divided into different sections. This Contract No. HY/2014/09 - Ho Man Tin Access Shaft (HMTS) (“The Project”) covers part of the construction activities located at Ho Man Tin under the EP which includes:

· Central Portion

i. Decant of Housing Authority Mock Up Centre and Site Establishment

ii. Diaphragm Walls Construction

iii. Excavation of Vertical Access Shaft approximately 100m deep and 21m internal diameter

The alignment and works area for the Contract No. HY/2014/09 - are shown in Appendix A.

1.4. A summary of the major construction activities undertaken in this reporting period is shown in Table 1.1. The construction programme is presented in Appendix B.

Table 1.1 Summary of the construction Activities Undertaken during the Reporting Month.

Construction Activities undertaken

· Diaphragm wall construction

· Decant of Housing Authority Mock Up Centre

· Site Establishment

1.5. The project organisational chart specifying management structure and contact details are shown in Appendix C.

1.6. A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2

Table 1.2 Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations

Permit/ Licences/ Notification	Reference	Validity Period	Remarks
Environmental Permit	EP- 457/2013/C	Throughout the Contract	Permit granted on 16 January 2017
Notification of Construction Works under the Air Pollution Control (Construction Dust) Regulation (Form NA)	428806	Throughout the Contract	Notification issued on 18/12/ 2017
Wastewater Discharge Licence	WT00030288-2018	Until 28/02/2023	Licence granted on 14/02/2018
Chemical Waste Producer Registration	WPN5111-236-N2345-03	Throughout the Contract	Registration complete on 19/12/2017
Construction Noise Permit	-	-	Application submitted on 15/2/2018
Billing Account for Disposal of Construction Waste	7029654	Throughout the Contract	Account granted on 22/12/2017

2. Environmental Status

2.1. Environmental permit (EP) conditions under the EIAO, submission status under the EP and implementation status of mitigation measures had been reviewed and implemented on schedule. The status of required submissions under the EP (EP-457/2013/C) as of the reporting period for the Project are summarised in Table 2.1

Table 2.1 Summary of Status of Required Submission for EP-457/2013/C for the Project

EP Condition (EP-457/2013/C)	Submission	Submission date
Condition 1.12	Notification of Commencement Date of Construction of the Project	1 February 2018
Condition 2.3	Community Liaison Group	5 January 2018
Condition 2.4	Management organisation of the main construction companies	22 December 2017
Condition 2.5	Construction Programme and EP Submission Schedule	08 January 2018 / 18 January 2018
Condition 2.6	Design Drawing	08 January 2018
Condition 2.8	Landscape Mitigation Plan	12 January 2018
Condition 2.9	Construction Noise Mitigation Plan (CNMMP)	15 February 2018
Condition 3.3	Baseline Monitoring Report	1 February 2018
Condition 3.4	EM&A Monthly Report	14 March 2018

2.2. Details of the major construction activities undertaken in this reporting period are shown in Table 2.2.

Table 2.2 Summary of the construction Activities Undertaken during the Reporting Month.

Location of works	Construction activities undertaken	Remarks on progress
Demolition Site Area	· Decant of Housing Authority Mock Up Centre	· 98% completion
	· Site establishment	· 95% completion
Portion 1 A	· Diaphragm wall construction	· 0 out of 22 panels completed

2.3. The drawing showing the the project are, environmental sensitive receivers and the location of the monitoring station is attached in Appendix A and Appendix K. Co-ordinates of the monitoring location is shown in below:

SKH Tsoi Kung Po Secondary School (M-A3 / M-N3) under HK80 Geographical Coordinates – Latitude: 22.314719, Longitude: 114.180694

3. Summary of Environmental Monitoring Requirement

3.1. The EM&A requirements for impact monitoring are set out in the approved EM&A Manual. Environmental aspects such as the construction air quality and noise were identified as the key issues during the construction phase of the Project. The summary of the of all monitoring parameters are tabulated in Table 3.1

Table 3.1 Summary of Monitoring Parameter

Impact Monitoring	Sampling Parameter
Air Quality	1-hour TSP
Air Quality	24-hour TSP
Noise	L_eq _{30 min}, L₁₀ and L₉₀ as reference.

3.2. The Action and Limit Levels are presented in Table 3.2 and the Event-Action Plan (EAP) for dust monitoring is presented in Appendix D.

Table 3.2 Action and Limit Levels for Air Quality Monitoring

Monitoring Location

Action Level

(μg/m³)

Limit Level

(μg/m³)

Action Level

(μg/m³)

Limit Level

(μg/m³)

1-Hour

24-Hour

M-A3

333

500

153

260

3.3. The Action and Limit Levels are presented in Table 3.3 and the Event-Action Plan (EAP) for noise monitoring is presented in Appendix E.

Table 3.3 Action and Limit Levels for Noise Monitoring

Monitoring Location

Action Level

Limit Level in dB(A)

0700-1900 hours on Normal Weekdays

M-N3

When one documented complaint is received

70 dB(A) during normal teaching periods

and

65 dB(A) during examination periods

3.4. Should non-compliance of the criteria occur, action in accordance with the Action Plan in Appendix D and Appendix E shall be carried out.

3.5. The environmental mitigation measures that recommended in the Implementation Schedule for Environmental Mitigation Measures (EMIS) in the approved EM&A Manual in Appendix F covered the issues of dust, noise, water and waste as showed in Table 3.4 below:

Table 3.4 Environmental Mitigation Measures

Issues	Environmental Mitigation Measures
Air Quality	- Tarpaulin covering of any dusty materials on a vehicle leaving the site; - Imposition of speed controls for vehicles on site haul roads; - Use of regular watering to reduce dust emissions from exposed site surfaces and roads; - Side enclosure and covering of any aggregate or stockpiling of dusty materials to reduce emissions; - Where possible, routing of vehicles and positioning of construction plant should be at the maximum possible distance from ASRs.
Noise	- Good site practices to limit noise emissions at the sources; - Use of quite plant and working methods; - Use of site hoarding or other mass materials as noise barrier to screen noise at ground level of NSRs; - Scheduling of construction works outside school examination period in critical area.
Water	- Drainage systems were regularly and adequately maintained; - Effluent discharged from the construction site should comply with standards stipulated in the TM-DSS; - Open stockpiles of construction materials on sites should be covered.
General	- The site was generally kept tidy and clean.

3.6. All environmental requirements were complied in the reporting period.

4. Monitoring Results

4.1. Monitoring Parameters

Air Quality

4.1.1. The impact monitoring had been carried out in accordance with section 5.8 of the approved EM&A Manual to determine the 1-hour and 24-hour total suspended particulates (TSP) levels at the monitoring location in the reporting report.

4.1.2. The sampling frequency of at least once in every 6 days, shall be strictly observed at the monitoring station for 24-hour TSP monitoring. For 1-hour TSP monitoring, the sampling frequency of at least 3 times in every 6 days should be undertaken when the highest dust impact occurs.

4.1.3. General meteorological conditions (wind speed, direction and precipitation) and notes regarding any significant adjacent dust producing sources had also been recorded throughout the impact monitoring period.

Noise

4.1.4. Construction noise level shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq). Leq (30min) shall be used as the monitoring parameter for the time period between 0700 and 1900 hours on normal weekdays.

4.1.5. For all other time periods, Leq (5min) shall be employed for comparison with the Noise Control Ordinance (NCO) criteria.

4.1.6. As supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

4.2. Monitoring Equipment

Air Quality

4.2.1. 1-hour TSP levels and 24-hour TSP had been measured with direct reading dust meter and High Volume Samplers respectively. It has been demonstrated its capability in achieving comparable results with high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50).

4.2.2. The 1-hour TSP meter was calibrated by the manufacturer prior to purchasing. Zero response of the instrument was checked before and after each monitoring event. Operation of the 1-hour TSP meter followed manufacturer’s Operation and Service Manual. The 24-hour TSP meter was calibrated against firmware 80570-8100-V1.0.4, annually. Operation of the 24-hour TSP meter followed manufacturer’s Operation and Service Manual. Valid calibration certificate of dust monitoring equipment is attached in Appendix H.

4.2.3. A summary of the equipment that was deployed for the 24- hour averaged monitoring is shown in Table 4.1. The TSP monitoring was conducted as per the schedule presented in Appendix G.

4.2.4. The equipment used for 1-hour TSP and 24-hour TSP measurement and calibration are summarised in Table 4.1

Table 4.1 Construction Dust Monitoring Equipment

Monitoring Parameter	Monitoring Equipment	Serial Number	Date of Calibration
1-hour TSP	TSI 8532 Laser Dust Monitor	8532114409	20 Dec 2017
24-hour TSP	TE-5170X High Volume Sampler	4479	24 Feb 2018
24-hour TSP	TE-5025 Calibration Kit	3465	2 Feb 2018

Noise

4.2.5. Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications has been used for carrying out the noise monitoring. The sound level meter has been checked using an acoustic calibrator. The wind speed and other metrological data has been recorded from Hong Kong Observatory- King’s Park meteorological station, along with portable wind speed meter stand by as back up if malfunction occurred or data was not recorded from HKO.

4.2.6. An acoustic calibrator and sound level meter using for the monitoring is within the valid period and were calibrated per year. Valid calibration certificate of noise monitoring equipment is attached in Appendix I.

4.2.7. The details of equipment using for monitoring are listed in Table 4.2, as below:

Table 4.2 Monitoring Equipment Used in Monitoring

Monitoring Equipment	Serial Number	Date of Calibration
Nti XL2 Sound Level Meter	A2A-09696-E0	3 Nov 2017
Pulsar 105 Acoustic Calibrator	63705	17 Sep 2017

4.3. Monitoring Methodology and QA/QC results

Air Quality

4.3.1. The 1-hour TSP monitor, portable dust meter (TSI Dust Trak Aerosol Monitor Model 8532) was used for the impact monitoring. The 1-hour TSP meter provides a real time 1-hour TSP measurement based on 90^o light scattering. Three 1-hour TSP level were logged per every six days.

4.3.2. The 24-hour TSP monitor, High Volume Sampler (Tisch TE 5170 High Volume Air Sampler) was used for the impact monitoring. The 24-hour TSP monitoring consists of the following:

u The HVS was set at the monitoring location, with electricity supply connected and secured;

u HVS was calibrated before commencing the 1^st measurement;

u The filter paper was weight and provided by HOKLAS lab (Acumen Laboratory and Testing Limited and ALS Technichem (HK) Pty Ltd) before and after the sampling. Certificate of HOKLAS accredited laboratory can be referred to Appendix J;

u The airflow over time during sampling process was recorded by the HVS.

4.3.3. HVS was free- standing with no obstruction. The following criteria were considered in the installation of the HVS:

u Appropriate support to secure the samples against gusty wind needed to be provided the monitoring station;

u A minimum of 2m separation from walls, parapets and penthouses was required for rooftop samplers;

u No furnace or incinerator flues was nearby;

u Airflow around the sampler was unrestricted; and

u Permission could be obtained to set up the samplers and gain access to the monitoring station.

4.3.4. Preparation of Filter Papers

u Glass fiber filters were labelled and sufficient filters that were clean and without pinholes were selected;

u All filters were equilibrated in the conditioning environment for 24 hours before weighing. The conditioning environment temperature was around 25℃ and not varied by more than ±3℃; the relative humidity (RH)was 40%; and

u Acumen Laboratory and Testing Limited and ALS Technichem (HK) Pty Limited, as HOKLAS accredited laboratory, implemented comprehensive quality assurance and quality control programmes on the filters.

4.3.5. Field Monitoring

u The power supply was checked to ensure that the HVS was working properly;

u The filter holder and area surrounding the filter were cleaned;

u The filter holder was removed by loosening the foul bolts and a new filter, with stamped number upward, on a supporting screen was aligned carefully;

u The filter was properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter;

u The swing bolts were fastened to hold the filter holder down to the frame. The pressure applied should be sufficient to avoid air leakage at the edges;

u The shelter lid was closed and secured with an aluminum strip;

u The HVS was warmed- up for about 5 minutes to establish run- temperature conditions;

u A new flow rate record sheet was inserted into the flow recorder;

u The flow rates of the HVS was checked and adjusted to between 1.22-1.37 , which was within the range specified in the EM&A Manual (i.e. 0.6- 1.7 );

u The programmable timer was set for a sampling period of 24 hours ±hour, and the starting time, weather condition and filter number were recorded;

u The initial elapsed time was recorded;

u At the end of sampling, the sampled filter was removed carefully and folded in half so that only surfaces with collected particulate matter were in contact;

u The filter paper was placed in a clean plastic envelope and sealed; all monitoring information was recorded on a standard data sheet and

u The filters were sent to (Acumen Laboratory and Testing Ltd and ALS Technichem (HK) Pty Ltd) for analysis.

4.3.6. Maintenance and Calibration

u The HVS and their accessories were maintained in a good working condition. For example, motor brushes were replaced routinely and electrical wiring was checked to ensure a continuous power supply; and

u The flow rate of each HVS with mass flow controller was calibrated using an orifice calibrator, Initial calibrations of the dust monitoring equipment were conducted upon installation and prior to commissioning. Five- point calibration was carried out for HVS using TE-5025 Calibration Kit. HVS is calibrated bimonthly. The calibration records for the HVS is given in Appendix H.

4.3.7. Wind Data Monitoring

u The wind speed has been recorded from Hong Kong Observatory- King’s Park meteorological station, along with portable wind speed meter stand by as back up if malfunction occurred or data was not recorded from HKO

Noise

4.3.8. All noise measurements by the meter were set to FAST response and on the A-weighted equivalent continuous sound pressure level (Leq) in decibels dB(A). was used as the monitoring metric for the time period between 0700 –1900 hours on normal weekdays. The measured noise levels were logged every 5 minutes throughout the monitoring period.

4.3.9. Prior to the noise measurement, the accuracy of the sound level meter was checked using an acoustic calibrator generating a known sound pressure level at a known frequency. Checking was conducted before and after the monitoring. The calibration level before and after the noise measurement is agreed to within 1.0 dB.

4.3.10. Noise measurements should not be made in presence of fog, rain, wind with a steady speed exceeding 5 ms-1 or wind with gusts exceeding 10 ms-1. The wind speed was checked with a portable wind speed meter capable of measuring with speeds in ms-1.

4.4. Monitoring Location

Air Quality

4.4.1. In order to identify and seek for the access of the dust monitoring locations designated in the EM&A Manual, site visit was conducted by ET. During the site visit, the original proposed monitoring location was declined by the management office of Ko Fai House,Kwun Fai Court due to the set-up of equipment on the rooftop and the middle level of building. Alternative air monitoring station had been proposed by ET and approved by IEC before the baseline monitoring started. 1 designated monitoring location was identified and agreed with IEC and EPD. Details of air monitoring station are described in Table 4.3. The location plan of air quality monitoring station is shown in Appendix K.

Table 4.3 Location of the Dust Monitoring Station

Air Quality Monitoring Station	Dust Monitoring Station
M-A3	SKH Tsoi Kung Po Secondary School

Noise

4.4.2. According to the EM&A Manual, construction noise impact monitoring should be conducted at designated monitoring station. In order to the access to some of the proposed monitoring locations stated in the EM&A Manual was either rejected or unavailable, alternative location was proposed and agreed by the ER. IEC and EPD. The details of construction noise monitoring location are listed in Table 4.4 and shown in Appendix K along with location of noise sensitive receivers (NSRs) related to this Works Contract.

Table 4.4 Noise Monitoring Station

Noise

Monitoring Station

Identified Noise

Monitoring Station

Type of Measurement

M-N3

SKH Tsoi Kung Po Secondary School

Façade

4.5. Monitoring date, time, frequency and duration

4.5.1. A summary of impact monitoring duration, sampling parameter and frequency is presented in Table 4.5.

Table 4.5: Summary of Impact Monitoring Programme

Impact Monitoring	Duration	Sampling Parameter	Frequency
Dust	1-hour continuous measurement	1-hour TSP	3 times per six days
Dust	24-hour continuous sampling	24-hour TSP	Once per six days
Noise	30-minute continuous measurement	L_eq _{30 min}, L₁₀ and L₉₀ as reference.	Once L_eq _{30 min} from 0700 – 1900 per seven days

4.6. Result Summary

Air Quality

4.6.1. According to our field observations, the major dust source identified at the designated air quality monitoring station in the reporting month are summarised in Table 4.6

Table 4.6 Observation at Dust Monitoring Station

Monitoring Station	Major Dust Source
M-A3	No obvious dust emission was observed

4.6.2. Air quality impact monitoring for the reporting month was carried out on 24 February 2018. The results for 1-hour TSP and 24-hour TSP are summarized in Table 4.7 and Table 4.8. The measurement data and details of influencing factors such as weather conditions and site observation are presented in Appendix L.

Table 4.7 Summary of 1-hour TSP Monitoring Results

Monitoring Location	Range(μg/m3)
M-A3	122 – 137

Table 4.8 Summary of 24-hour TSP Monitoring Results

Monitoring Location	Range(μg/m3)
M-A3	57

Noise

4.6.3. According to our field observations, the major noise source identified at the designated noise monitoring station in the reporting month are summarised in Table 4.9:

Table 4.9 Observation at Noise Monitoring Station

Monitoring Station	Major Noise Source
M-N3	Traffic

4.6.4. The construction noise impact monitoring for the reporting month was carried out on 24 February 2018. The measurement data are shown in Appendix M and summarized in Tables 4.10:

Table 4.10 Summary of Noise Monitoring Results –M-N3

Time Period	Parameter	Range, dB(A)
Time Period	Parameter	L_eq	L₁₀	L₉₀
Normal working hour from 0700-1900	L_{eq 30min}	68.6	76.5	64.8

4.7. Waste management

4.7.1. 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, vegetative wastes 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. With reference to relevant handling records and trip tickets of this Project, the quantities of different types of waste generated in the reporting month are summarised in Table 4.11. Details of cumulative waste management data are presented as a waste flow table in Appendix N.

Table 4.11 Quantities of waste generated from the Project

Reporting period	Quantity
	Inert C&D Materials	Chemical Waste	Non-inert C&D Materials
			Others, e.g. General Refuse disposed at Landfill	Recycled materials
				Paper/card board	Plastics	Metals
Feb-18	1.343	0	0.016	0	0	0

5. Summary of Complaints, Notification of Summons and Prosecutions

5.1. The Environmental Complaint Handling Procedure is shown in below Table 5.1:

Table 5.1 Environmental Complaint Handling Procedure

Complaint Received via Project Hotline			Complaint Received via 1823 or from other government departments

Contractor notify ER, ET and IEC			ER notify Contractor, ET and IEC

Contractor log complaint and date of receipt onto the complaint database. Contractor, ER and ET to conduct investigation of complaint

If complaint is considered not valid			If complaint is found valid

ET or ER to reply the complainant if necessary			Contractor to identify and implement remedial measures in consultation with the IEC, ET and ER.

			The ER, ET and IEC to review the effectiveness of the Contractor's remedial measures and the updated situation; ET to undertake additional monitoring and audit to verify the situation if necessary, and oversee that circumstances leading to the complaint do not recur. ER to conduct further inspection as necessary.

If the complaint is referred by the EPD, the Contractor to prepare interim report on the status of the complaint investigation and follow-up actions stipulated above, including the details of the remedial measures and additional monitoring identified or already taken, for submission to EPD within the time frame assigned by the EPD

The ET to record the details of the complaint, results of the investigation, subsequent actions taken to address the complaint and updated situation including the effectiveness of the remedial measures, supported by regular and additional monitoring results in the monthly EM&A reports

5.2. No exceedance of the Action and Limit Levels of the regular construction noise was recorded during the reporting period

5.3. No exceedance of the Action and Limit Level of 1-hour TSP and 24-hour TSP monitoring was recording during the reporting period.

5.4. No environmental complaint were received in the reporting period.

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

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

6. EM&A Site Inspection

6.1. Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. In the reporting period, two (2) site inspections were carried out on 21 and 28 February2018.

6.2. One joint site inspection with IEC also undertaken on 28 February 2018. Minor deficiencies were observed during weekly site inspection or joint site inspection. Key observations during the site inspections are summarized in Table 6.1.

Table 6.1 Site Observations

Date

Environmental Observations

Follow-up Status

21 February 2018

Observation(s) and Recommendation(s)

1. Some protection fences were broken at demolition site area.

2. Lube oil bottles should be placed in tray to prevent leakage or spillage at demolition site area.

1. Protection fences were replaced by a good condition one.

2. Chemical which were not in use were collected back by the subcontractors to prevent the storage and spillage on site.

28 February 2018

Observation(s) and Recommendation(s)

1. Plastic Waste and bags outside the drilling rig areas should be removed to maintain good housekeeping.

2. Loosen Cases of generator should be tightened to prevent noise generation.

3. No Label of “General Waste” is attached to the skip near the pedestrian walkway for collection of general debris

4. The Wet Sep was not operating and could not be switched on due to electric shock while site audit was conducted. Maintenance should be provided to ensure normal operation.

5. Debris was found near the tree protection zones at the demolition area. E.g. emptied diesel drum, which should be placed in chemical waste storage, was found in a plastic drum.

6. All scattered steel bars should be segregated and stored in designated area on site for recycling or reuse.

1. Plastic waste and bags were removed from the passageway in order to keep from free of obstruction.

2. Loosen Cases of generator was fixed and tightened to prevent noise generation.

3. Label of “General Waste” was displayed onto the skip near the pedestrian walkway for indication

4. WetSep was operated in automatic mode now and the pH was functioned properly to show the pH value of wastewater.

5. Emptied diesel drum was removed from tree protection zone.

6. All scattered steel bars were segregated and ready for recycling.

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

6.4. According to the EIA Study Report, Environmental Permit, contract documents and EM&A Manual, the mitigation measures detailed in the documents are implemented as much as practical during the reporting period. An updated Implementation Status of Environmental Mitigation Measures (EMIS) is provided in Appendix F.

7. Future Key Issues

7.1. Work to be undertaken in the next reporting month are:

· Diaphragm wall construction

· Decant of Housing Authority Mock Up Centre

· Site Office Construction

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

7.2. The tentative schedule of regular construction noise monitoring, 1-hour TSP and 24-hour TSP monitoring in the next reporting period is presented in Appendix P. The regular construction noise monitoring, 1-hour TSP monitoring 24-hour TSP monitoring will be conducted at the same monitoring location in the next reporting period.

7.3. The construction programme for the Project for the next reporting month is presented in Appendix B.

8. Conclusion and Recommendations

8.1. This 1^st monthly Environmental Monitoring and Audit (EM&A) Report presents the EM&A works undertaken during the period from 20 February 2018 to 28 February 2018 in accordance with the EM&A Manual and the requirement under EP- 457/2013/C

8.2. Air quality (including 1-hour TSP and 24-hour TSP) and noise impact monitoring were carried out in the reporting period. All monitoring results are satisfactory. No exceedance of the Action and Limit Level was recorded during the reporting period.

8.3. Weekly environmental site inspection were conducted during the reporting period. Joint site inspection with IEC were carried out on 28 February 2018. Minor deficiencies were observed during site inspection and were rectified within the specified deadlines. The environmental performance of the Project was therefore considered satisfactory.

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

8.5. No notification of summons or prosecution was received since commencement of the Contract.

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.