EIA Report

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 14^th monthly Environmental Monitoring and Audit (EM&A) report presenting the EM&A works carried out during the period from 1 March 2019 to 31 March 2019.

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

Construction Activities undertaken

· Access Shaft Excavation +50mPD down to +15mPD

· Access Shaft Excavation – Soil/ Rock excavation from +15mPD down to +11mPD

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

5 times

Construction dust (24-hour TSP) monitoring

M-A3

5 times

Construction dust (1-hour TSP) monitoring

M-A3

15 times

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, 7887 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 4 m³ of non-recyclable non-inert C&D materials, such as general refuse, were disposed of at landfill. About 3 m³of yard waste were recycled. 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 12, 26 March 2019. Details of the audit findings and implementation status are presented in Section 5.

A.7 Joint weekly site inspections were conducted by representatives of the Contractor, Engineer and Contractor’s ET on 5, 12, 19, 26 March 2019. The representative of IEC joined the site inspection on 5 March 2019. Details of the audit findings and implementation status are presented in Section 5.

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 environmental complaint was received in the 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

· Rock Excavation

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:

l 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

· Access Shaft Excavation +50mPD down to +15mPD

· Access Shaft Excavation – Soil/ Rock excavation from +15mPD down to +11mPD

1.5. There are no updates on the scope of works and construction methodologies.

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

1.7. 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 16/01/2018
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
Billing Account for Disposal of Construction Waste	7029654	Throughout the Contract	Account granted on 22/12/2017
Construction Noise Permit	GW-RE0178-19	Until 24/05/2019	CNP granted on 22/3/2019

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	Monthly EM&A Report (February 2019)	13 March 2019

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
	· Access Shaft Excavation +50mPD down to +15mPD	· 12,250 out of 12,250 m³
	· Access Shaft Excavation – Soil/ Rock excavation from +15mPD down to +11mPD	· 1,302 out of 1,400m³

2.3. The drawing showing the project are, environmental sensitive receivers and the location of the monitoring station are 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. Monitoring Results

3.1. Monitoring Parameters

Air Quality

3.1.1. 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.

3.1.2. 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.

3.1.3. 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

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

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

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

3.2. Monitoring Equipment

Air Quality

3.2.1. 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).

3.2.2. 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.

3.2.3. A summary of the equipment that was deployed for the 24- hour averaged monitoring is shown in Table 3.1. The TSP monitoring was conducted as per the schedule presented in Appendix G.

3.2.4. The equipment used for 1-hour TSP and 24-hour TSP measurement and calibration are summarised in Table 3.1

Table 3.1 Construction Dust Monitoring Equipment

Monitoring Parameter	Monitoring Equipment	Serial Number	Date of Calibration
1-hour TSP	Sibata LD-3B Digital Dust Indicator	296093	15 Oct 2018
24-hour TSP	TE-5170X High Volume Sampler	1048	9, 27 Mar 2019
24-hour TSP	TE-5025 Calibration Kit	3465	22 Jan 2019

Noise

3.2.5. 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.

3.2.6. 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.

3.2.7. The details of equipment using for monitoring are listed in Table 3.2, as below:

Table 3.2 Monitoring Equipment Used in Monitoring

Monitoring Equipment	Serial Number	Date of Calibration
Nti XL2 Sound Level Meter	A2A-13661-E0	10 Sep 2018
Pulsar 105 Acoustic Calibrator	63705	11 Sep 2018

3.3. Monitoring Methodology and QA/QC results

Air Quality

3.3.1. The 1-hour TSP monitor, portable dust meter (Sibata Digital Dust Indicator LD-3B) 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.

3.3.2. 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.

3.3.3. 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.

3.3.4. 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.

3.3.5. 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.

3.3.6. 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.

3.3.7. 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

3.3.8. All noise measurements by the meter were set to FAST response and on the A-weighted equivalent continuous sound pressure level (L_eq) 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.

3.3.9. 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.

3.3.10. 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.

3.4. Monitoring Location

Air Quality

3.4.1. 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 3.3. The location plan of air quality monitoring station is shown in Appendix K.

Table 3.3 Location of the Dust Monitoring Station

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

Noise

3.4.2. 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 3.4 and shown in Appendix K along with location of noise sensitive receivers (NSRs) related to this Works Contract.

Table 3.4 Noise Monitoring Station

Noise

Monitoring Station

Identified Noise

Monitoring Station

Type of Measurement

M-N3

SKH Tsoi Kung Po Secondary School

Free-field

3.5. Monitoring date, time, frequency and duration

3.5.1. A summary of impact monitoring duration, sampling parameter and frequency is presented in Table 3.5.

Table 3.5: 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

3.6. Result Summary

Air Quality

3.6.1. 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 3.6

Table 3.6 Observation at Dust Monitoring Station

Monitoring Station	Major Dust Source
M-A3	Nearby Traffic emissions

3.6.2. Air quality impact monitoring for the reporting month was carried out on 4, 9, 15, 21, 27 March 2019 for 1-hour TSP and 24-hour TSP. The results for 1-hour TSP and 24-hour TSP are summarized in Table 3.7 and Table 3.8. The measurement data and details of influencing factors such as weather conditions and site observation are presented in Appendix L.

Table 3.7 Summary of 1-hour TSP Monitoring Results

Monitoring Location	Range(μg/m3)	Action Level(μg/m3)	Limit Level(μg/m3)
M-A3	51-69	333	500

Table 3.8 Summary of 24-hour TSP Monitoring Results

Monitoring Location	Range(μg/m3)	Action Level(μg/m3)	Limit Level(μg/m3)
M-A3	27-141	153	260

Noise

3.6.3. According to our field observations, the major noise source identified at the designated noise monitoring station in the reporting month are summarised in Table 3.9:

Table 3.9 Observation at Noise Monitoring Station

Monitoring Station	Major Noise Source
M-N3	Traffic, School activity

3.6.4. The construction noise impact monitoring for the reporting month was carried out on 4, 9, 15, 21, 27 March 2019. The measurement data are shown in Appendix M and summarized in Tables 3.10:

Table 3.10 Summary of Noise Monitoring Results –M-N3

Time Period

Parameter

Range, dB(A)

Action Level

Limit Level

L_eq*

L₁₀*

L₉₀*

Normal working hour from 0700-1900

L_{eq 30min}

67.7-69.0

70.1-70.8

66.0-66.5

When one documented compliant is received

For schools: 70dB(A) during normal teaching period and 65 dB(A) during examination periods

Remarks:

1. * Free Field Noise levels were adjusted with a correction of +3 dB(A).

Waste management

3.6.5. 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 3.11. Details of cumulative waste management data are presented as a waste flow table in Appendix N.

Table 3.11 Quantities of waste generated from the Project

Reporting period	Quantity
	Inert C&D Materials (in ‘000m3)	Chemical Waste (in ‘000kg)	Non-inert C&D Materials
			Others, e.g. General Refuse disposed at Landfill (in ‘000m3)	Recycled materials
				Paper/card board (in ‘000kg)	Plastics (in ‘000kg)	Metals (in ‘000kg)
Mar-19	7.887	0.000	0.004 0.003(yard waste for recycle)	0.000	0.000	0.000

4. Summary of Complaints, Notification of Summons and Prosecutions

4.1. The Environmental Complaint Handling Procedure is shown in below Table 4.1:

Table 4.1 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

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

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

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

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

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

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

5. EM&A Site Inspection

5.1. 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, four (4) site inspections were carried out on 5, 12, 19, 26 March 2019, along with bi-weekly inspection of the implementation of landscape and visual mitigation measures conducted on 12, 26 March 2019.

5.2. One joint site inspection with IEC also undertaken on 5 March 2019. Minor deficiencies were observed during weekly site inspection or joint site inspection. Key observations during the site inspections are summarized in Table 5.1.

Table 5.1 Site Observations

Date	Environmental Observations	Follow-up Status
5 Mar 2019	No Observations	-
12 Mar 2019	1. Drip tray was unplugged. 2. Stagnant water was found in Portion 1A.	1. Drip tray was plugged. 2. Stagnant water was removed in Portion 1A.
19 Mar 2019	No Observations	-
26 Mar 2019	No Observations	-

5.3. 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.

6. Future Key Issues

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

· Access Shaft Rock Excavation

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

6.2. 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.

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

7. Conclusion and Recommendations

7.1. This 14^th monthly Environmental Monitoring and Audit (EM&A) Report presents the EM&A works undertaken during the period from 1 March 2019 to 31 March 2019 in accordance with the EM&A Manual and the requirement under EP- 457/2013/C

7.2. 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.

7.3. Weekly environmental site inspections were conducted during the reporting period. Joint site inspection with IEC were carried out on 5 March 2019. No deficiencies was observed during site inspection. The environmental performance of the Project was therefore considered satisfactory.

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

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

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

EVENT	ACTION
ACTION LEVEL
1.Exceedance for one sample	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Inform IEC and ER; 3. Repeat measurement to confirm finding; 4. Increase monitoring frequency to daily.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method.	1. Notify Contractor.	1. Rectify any unacceptable practice; 2. Amend working methods if appropriate.
2.Exceedance for two or more consecutive samples	1. Identify source; 2. Inform IEC and ER; 3. Advise the ER on the effectiveness of the proposed remedial measures; 4. Repeat measurements to confirm findings; 5. Increase monitoring frequency to daily; 6. Discuss with IEC and Contractor on remedial actions required; 7. If exceedance continues, arrange meeting with IEC and ER; 8. If exceedance stops, cease additional monitoring.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method; 3. Discuss with ET and Contractor on possible remedial measures; 4. Advise the ET on the effectiveness of the proposed remedial measures; 5. Supervise Implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Ensure remedial measures properly implemented.	1. Submit proposals for remedial to ER within 3 working days of notification; 2. Implement the agreed proposals; 3. Amend proposal if appropriate.
LIMIT LEVEL
1.Exceedance for one sample	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Inform ER, Contractor and EPD; 3. Repeat measurement to confirm finding; 4. Increase monitoring frequency to daily; 5. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method; 3. Discuss with ET and Contractor on possible remedial measures; 4. Advise the ER on the effectiveness of the proposed remedial measures; 5. Supervise implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Ensure remedial measures properly implemented.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; Implement the agreed proposals; 4. Amend proposal if appropriate.
2.Exceedance for two or more consecutive samples	1. Notify IEC, ER, Contractor and EPD; 2. Identify source; 3. Repeat measurement to confirm findings; 4. Increase monitoring frequency to daily; 5. Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented; 6. Arrange meeting with IEC and ER to discuss the remedial actions to be taken; 7. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results; 8. If exceedance stops, cease additional monitoring.	1. Discuss amongst ER, ET, and Contractor on the potential remedial actions; 2. Review Contractor’s remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. In consultation with the IEC, agree with the Contractor on the remedial measures to be implemented; 4. Ensure remedial measures properly implemented; 5. If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Resubmit proposals if problem still not under control; 5. Stop the relevant portion of works as determined by the ER until the exceedance is abated.

EVENT	ACTION
Action Level	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Notify IEC and Contractor; 3. Report the results of investigation to the IEC, ER and Contractor; 4. Discuss with the Contractor and formulate remedial measures; 5. Increase monitoring frequency to check mitigation effectiveness.	1.Review the analysed results submitted by the ET; 2. Review the proposed remedial measures by the Contractor and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures are properly implemented	1. Submit noise mitigation proposals to IEC; 2. Implement noise mitigation proposals.
Limit Level	1. Identify source; 2. Inform IEC, ER, EPD and Contractor; 3. Repeat measurements to confirm findings; 4. Increase monitoring frequency; 5. Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented; 6. Inform IEC, ER and EPD the causes and actions taken for the exceedances; 7. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results; 8. If exceedance stops, cease additional monitoring.	1. Discuss amongst ER, ET, and Contractor on the potential remedial actions; 2. Review Contractors remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1.Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures properly implemented; 5. If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Resubmit proposals if problem still not under control; 5. Stop the relevant portion of works as determined by the ER until the exceedance is abated.

Environmental Mitigation Implementation Schedule – Contract No. HY/2014/09 (Ho Man Tin Access Shaft)

EIA Ref.	EM&A Log Ref.	Recommended Mitigation Measures	Objectives of the Recommended Measures & Main Concerns to address	Implementation Agent	Location / Timing	Implementation Stage	Requirements and/ or standards to be achieved	Implementation Status
Construction Dust Impact
S4.3.10	D1	The contractor shall follow the procedures and requirements given in the Air Pollution Control (Construction Dust) Regulation	Minimize dust impact at the nearby sensitive receivers	Contractor	All construction sites	Construction stage	· APCO · To control the dust impact To meet HKAQO and TM-EIA criteria	· Implemented
S4.3.10	D2	· Mitigation measures in form of regular watering under a good site practice should be adopted. Watering once per hour on exposed worksites and haul road should be conducted to achieve dust removal efficiencies of 91.7%. While the above watering frequencies are to be followed, the extent of watering may vary depending on actual site conditions but should be sufficient to maintain an equivalent intensity of no less than 1.3 L/m² to achieve the dust removal efficiency.	Minimize dust impact at the nearby sensitive receivers	Contractor	All construction sites	Construction stage	· APCO · To control the dust impact To meet HKAQO and TM-EIA criteria	· Implemented
S4.3.10	D3	· Proper watering at exposed spoil should be undertaken throughout the construction phase; · Any excavated or stockpile of dusty material should be covered entirely by impervious sheeting or sprayed with water to maintain the entire surface wet and then removed or backfilled or reinstated where practicable within 24 hours of the excavation or unloading; · Any dusty materials remaining after a stockpile is removed should be wetted with water and cleared from the surface of roads; · A stockpile of dusty material should not be extended beyond the pedestrian barriers, fencing or traffic cones; · The load of dusty materials on a vehicle leaving a construction site should be covered entirely by impervious sheeting to ensure that the dusty materials do not leak from the vehicle. · Where practicable, vehicle washing facilities with high pressure water jet should be provided at every discernible or designated vehicle exit point. The area where vehicle washing takes place and the road section between the washing facilities and the exit point should be paved with concrete, bituminous materials or hardcores; · When there are open excavation and reinstatement works, hoarding of not less than 2.4m high should be provided and properly maintained as far as practicable along the site boundary with provision for public crossing. Good site practice shall also be adopted by the Contractor to ensure the conditions of the hoardings are properly maintained throughout the construction period; · The portion of any road leading only to construction site that is within 30m of a vehicle entrance or exit should be kept clear of dusty materials; · Surfaces where any pneumatic or power-driven drilling, cutting, polishing or other mechanical breaking operation takes place should be sprayed with water or a dust suppression chemical continuously; · Any area that involves demolition activities should be sprayed with water or a dust suppression chemical immediately prior to, during and immediately after the activities so as to maintain the entire surface wet; · Any skip hoist for material transport should be totally enclosed by impervious sheeting; · Every stock of more than 20 bags of cement or dry-pulverised fuel ash (PFA) should be covered entirely by impervious sheeting or placed in an area sheltered on the top and the 3 sides; · Loading, unloading, transfer, handling or storage of bulk cement or dry PFA should be carried out in a totally enclosed system or facility, and any vent or exhaust should be fitted with an effective fabric filter or equivalent air pollution control system · Exposed earth should be properly treated by compaction, turfing, hydroseeding, vegetation planting or sealing with latex, vinyl, bitumen, shotcrete or other suitable surface stabilizer within six months after the last construction activity on the construction site or part of the construction site where the exposed earth lies.	Minimize dust impact at the nearby sensitive receivers	Contractor	All construction sites	Construction stage	· APCO · To control the dust impact To meet HKAQO and TM-EIA criteria	· Implemented
S4.3.10	D6	Implement regular dust monitoring under EM&A programme during the construction stage.	Monitoring of dust impact	Contractor	Selected rep. dust monitoring station	Construction stage	· TM-EIA	· Implemented
Construction Noise (Airborne)
S5.4.1	N1	Implement the following good site practices: · Only well-maintained plant should be operated on-site and plant should be serviced regularly during the construction programme; · Machines and plant (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum; · Plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs; · Silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works; · Mobile plant should be sited as far away from NSRs as possible and practicable; · Material stockpiles, mobile container site office and other structures should be effectively utilized, where practicable, to screen noise from on-site construction activities.	Control construction airborne noise	Contractor	All construction sites	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N2	Install temporary hoarding located on the site boundaries between noisy construction activities and NSRs. The conditions of hoardings shall be properly maintained throughout the construction period.	Reduce the construction noise levels at low-level zone of NSRs through partial screening	Contractor	All construction sites	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N3	Install movable noise barriers (typical design is wooden framed barrier with a small-cantilevered on a skid footing with 25mm thick internal sound absorptive lining), acoustic mat or full enclosure, screen the noisy plants including air compressors, generators and handheld breakers, etc.	Screen the noisy plant items to be used at all construction sites	Contractor	All construction sites where practicable	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N4	Use ‘Quiet plant’	Reduce the noise levels of plant items	Contractor	All construction sites where practicable	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N5	Loading/ unloading activities should be carried out inside the full enclosure of mucking out points.	Reduce the noise levels of loading/ unloading activities	Contractor	Mucking out locations	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N6	Sequencing operation of construction plants where practicable.	Operate sequentially within the same work site to reduce the construction airborne noise	Contractor	All construction sites where practicable	Construction stage	· Annex 5, TM-EIAO	· Implemented
S5.4.1	N7	Implement a noise monitoring programme under EM&A programme.	Monitor the construction noise levels at the selected representative location	Contractor	Selected rep. noise monitoring station	Construction stage	· TM-EIAO	· Implemented
Water Quality (Construction Phase)
S6.9.1.1	W1	In accordance with the Practice Note for Professional Persons on Construction Site Drainage, Environmental Protection Department, 1994 (ProPECC PN1/94), construction phase mitigation measures shall include the following: Construction Runoff · At the start of site establishment, perimeter cut-off drains to direct off-site water around the site should be constructed with internal drainage works and erosion and sedimentation control facilities implemented. Channels (both temporary and permanent drainage pipes and culverts), earth bunds or sand bag barriers should be provided on site to direct stormwater to silt removal facilities. The design of the temporary on-site drainage system will be undertaken by the contractor prior to the commencement of construction; · The dikes or embankments for flood protection should be implemented around the boundaries of earthwork areas. Temporary ditches should be provided to facilitate the runoff discharge into an appropriate watercourse, through a silt/ sediment trap. The sediment/ silt traps should be incorporated in the permanent drainage channels to enhance deposition rates; · The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94, which states that the retention time for silt/ sand traps should be 5 minutes under maximum flow conditions. Sizes may vary depending upon the flow rate, but for a flow rate of 0.1 m³/s a sedimentation basin of 30 m³ would be required and for a flow rate of 0.5 m³/s the basin would be 150 m³. The detailed design of the sand/ silt traps shall be undertaken by the contractor prior to the commencement of construction; · All exposed earth areas should be completed and vegetated as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks where practicable. Exposed slope surfaces should be covered by tarpaulin or other means; · The overall slope of the site should be kept to a minimum to reduce the erosive potential of surface water flows, and all traffic areas and access roads protected by coarse stone ballast. An additional advantage accruing from the use of crushed stone is the positive traction gained during prolonged periods of inclement weather and the reduction of surface sheet flows; · All drainage facilities and erosion and sediment control structures should be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rainstorms. Deposited silt and grit should be removed regularly and disposed of by spreading evenly over stable, vegetated areas; · Measures should be taken to minimize the ingress of site drainage into excavations. If the excavation of trenches in wet periods is necessary, they should be dug and backfilled in short sections wherever practicable. Water pumped out from trenches or foundation excavations should be discharged into storm drains via silt removal facilities; · Open stockpiles of construction materials (for example, aggregates, sand and fill material) of more than 50m³ should be covered with tarpaulin or similar fabric during rainstorms. Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system; · Manholes should always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system and storm runoff being directed into foul sewers; · Precautions be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecasted, and actions to be taken during or after rainstorms are summarized in Appendix A2 of ProPECC PN 1/94. Particular attention should be paid to the control of silty surface runoff during storm events, especially for areas located near steep slopes; · All vehicles and plant should be cleaned before leaving a construction site to ensure no earth, mud, debris and the like is deposited by them on roads. An adequately designed and site wheel washing facilities should be provided at every construction site exit where practicable. Wash-water should have sand and silt settled out and removed at least on a weekly basis to ensure the continued efficiency of the process. The section of access road leading to, and exiting from, the wheel wash bay to the public road should be paved with sufficient backfall toward the wheel wash bay to prevent vehicle tracking of soil and silty water to public roads and drains; · Oil interceptors should be provided in the drainage system downstream of any oil/ fuel pollution sources. The oil interceptors should be emptied and cleaned regularly to prevent the release of oil and grease into the storm water drainage system after accidental spillage. A bypass should be provided for the oil interceptors to prevent flushing during heavy rain; · Construction solid waste, debris and rubbish on site should be collected, handled and disposed of properly to avoid water quality impacts; · All fuel tanks and storage areas should be provided with locks and sited on sealed areas, within bunds of a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled fuel oils from reaching water sensitive receivers nearby; · Adopt best management practices; · All earth works should be conducted sequentially to limit the amount of construction runoff generated from exposed areas during the wet season (April to September) as far as practicable.	To minimize water quality impact from the construction site runoff and general construction activities	Contractor	All construction sites where practicable	Construction stage	· Water Pollution Control Ordinance · ProPECC PN 1/94 · TM-EIAO · TM-DSS	· Implemented, rectified after observation
S6.9.1.2	W2	Underground Works · Uncontaminated discharge should pass through sedimentation tanks prior to of-site discharge; · The wastewater with a high concentration of SS should be treated (e.g. by sedimentation tanks with sufficient retention time) before discharge. Oil interceptors would also be required to remove the oil, lubricants and grease from the wastewater; · Direct discharge of the bentonite slurry (as a result of D-wall) is not allowed. It should be reconditioned and reused wherever practicable. Temporary storage locations (typically a properly closed warehouse) should be provided on site for any unused bentonite that needs to be transported away after all the related construction activities area completed. The requirements in ProPECC PN 1/94 should be adhered to in the handling and disposal of bentonite slurries.	To minimize construction water quality impact from the works	Contractor	All access shaft location	Construction stage	· Water Pollution Control Ordinance · ProPECC PN 1/94 · TM-DSS · TM-EIAO	· Implemented
S6.9.1.3	W3	Sewage Effluent · Portable chemical toilets and sewage holding tanks are recommended for handling the construction sewage generated by the workforce. A licensed contractor should be employed to provide appropriate and adequate portable toilets and be responsible for appropriate disposal and maintenance.	To minimize water quality from sewage effluent	Contractor	All construction sites where practicable	Construction stage	· Water Pollution Control Ordinance · TM-DSS	· Implemented
S6.9.1.6	W6	Accidental Spillage In order to prevent accidental spillage of chemicals, the following is recommended: · All the tanks, containers, storage area should be bunded and the locations should be locked as far as possible from the sensitive watercourse and stormwater drains; · The Contractor should register as a chemical waste producer if chemical wastes would be generated. Storage of chemical waste arising from the construction activities should be stored with suitable labels and warnings. Disposal of chemical wastes should be conducted in compliance with the requirements as stated in the Waste Disposal (Chemical Waste) (General) Regulation.	To minimize water quality impact from accidental spillage	Contractor	All construction site where practicable	Construction stage	· Water Pollution Control Ordinance · ProPECC PN 1/94 · TM-EIAO · TM-DSS	· Implemented, rectified after observation
Waste Management (Construction Waste)
S7.4.1	WM1	On-site sorting of C&D material · Geological assessment should be carried out by competent persons on site during excavation to identify materials which are not suitable to use as aggregate in structural concrete (e.g. volcanic rock, Aplite dyke rock, etc.). Volcanic rock and Aplite dyke rock should be separated at the source sites as far as practicable and stored at designated stockpile area preventing them from delivering to crushing facilities. The crushing plant operator should also be reminded to set up measures to prevent unsuitable rock from ending up at concrete batching plants and be turned into concrete for structural use. Details regarding control measures at source site and crushing facilities should be submitted by the Contractor for the Engineer to review and agree. In addition, site records should also be kept for the types of rock materials excavated and the traceability of delivery will be ensured with the implementation of Trip Ticket System and enforced by site supervisory staff as stipulated under DEVB TC(W) No. 6/2010 for tracking of the correct delivery to the rock crushing facilities for processing into aggregates. Alternative disposal option for the reuse of volcanic rock and Aplite Dyke rock, etc. should be explored.	Separation of unsuitable rock from ending up at concrete batching plants and be turned into concrete for structural use	Contractor	All construction sites	Construction stage	· DEVB (W) No. 6/2010	· Implemented
S7.5.1	WM2	Construction and Demolition Material · Maintain temporary stockpiles and reuse excavated fill material for backfilling and reinstatement; · Carry out on-site sorting; · Make provisions in the Contract documents to allow and promote the use of recycled aggregates where appropriate; · Adopt ‘selective demolition’ technique to demolish the existing structures and facilities with a view to recovering broken concrete effectively for recycling purpose, where possible; · Implement a trip-ticket system for each works contract to ensure that the disposal of C&D materials are properly documented and verified; and · Implement an enhanced Waste Management Plan similar to ETWBTC (Works) No. 19/2005 – “Environmental Management on Construction Sites” to encourage on-site sorting of C&D materials and to minimize their generation during the course of construction.	Good site practice to minimize the waste generation and recycle the C&D materials as far as practicable so as to reduce the amount for final disposal	Contractor	All construction sites	Construction stage	· Land (Miscellaneous Provisions) Ordinance · Waste Disposal Ordinance · ETWB TCW No. 19/2005	· Implemented
S7.5.1	WM3	C&D Waste · Standard formwork or pre-fabrication should be used as far as practicable in order to minimize the arising of C&D materials. The use of more durable formwork or plastic facing for the construction works should be considered. Use of wooden hoardings should not be used, as in other projects. Metal hoarding should be used to enhance the possibility of recycling. The purchasing of construction materials will be carefully planned in order to avoid over ordering and wastage; · The Contractor should recycle as much of the C&D materials as possible on-site. Public fill and C&D waste should be segregated and stored in different containers or skips to enhance reuse or recycling of materials and their proper disposal. Where practicable, concrete and masonry can be crushed and used as fill. Steel reinforcement bar can be used by scrap steel mills. Different areas of the sites should be considered for such segregation and storage.	Good site practice to minimize the waste generation and recycle the C&D materials as far as practicable so as to reduce the amount for final disposal	Contractor	All construction sites	Construction stage	· Land (Miscellaneous Provisions) Ordinance · Waste Disposal Ordinance · ETWB TCW No. 19/2005	· Implemented
S7.5.1	WM6	Chemical Waste · Chemical waste that is produced, as defined by Schedule 1 of the Waste Disposal (Chemical Waste) (General) Regulation, should be handled in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes; · Containers used for the storage of chemical wastes should be suitable for the substance they are holding, resistant to corrosion, maintained in a good condition, and securely closed, have a capacity of less than 450 L unless the specification has been approved by EPD, and display a label in English and Chinese in accordance with instructions prescribed in Schedule 2 of the regulation; · The storage area for chemical wastes should be clearly labelled and used solely for the storage of chemical waste, enclosed on at least 3 sides, have an impermeable floor and bunding of sufficient capacity to accommodate 110% of the volume of the largest container or 20% of the total volume of waste stored in that area, whichever is the greatest, have adequate ventilation, covered to prevent rainfall entering, and arranged so that incompatible materials are adequately separated; · Disposal of chemical waste should be via a licensed waste collector, be to a facility licensed to receive chemical waste, such as the Chemical Waste Treatment Centre which also offers a chemical waste collection service and can supply the necessary storage containers, or be to a reuser of the waste, under approval from EPD.	Control the chemical waste and ensure proper storage, handling and disposal	Contractor	All construction sites	Construction stage	· Waste Disposal (Chemical Waste) (General) Regulation · Code of Practice on the Packaging, Labelling and Storage of Chemical Waste	· Implemented
S7.5.1	WM7	General Refuse · General refuse generated on-site should be stored in enclosed bins or compaction units separately from construction and chemical wastes; · A reputable waste collector should be employed by the Contractor to remove general refuse from the site, separately from construction and chemical wastes, on a daily basis to minimize odour, pest and litter impacts. Burning of refuse on construction sites is prohibited by law. · Aluminum cans are often recovered from the waste stream by individual collectors if they are segregated and made easily accessible. Separate labelled bins for their deposit should be provided if feasible; · Office wastes can be reduced through the recycling of paper if volumes are large enough to warrant collection. Participation in a local collection scheme should be considered by the Contractor.	Minimize production of the general refuse and avoid odour, pest and litter impacts	Contractor	All construction sites	Construction stage	· Waste Disposal Ordinance	· Implemented
Hazard to Life
S9.18	H1	Blasting activities regarding transport and use of explosives should be supervised and audited by competent site staff to ensure full compliance with the blasting permit conditions.	To ensure that the risks from the proposed explosives handling and transport would be acceptable	Contractor	Works areas at which explosives would be used	Construction stage	· Dangerous Goods Ordinance	· N/A
S9.6, para.4	H2	Detonators shall not be transported in the same vehicle with other Category 1 Dangerous Goods.	To reduce the risk of explosion during the transport of cartridged emulsion	Contractor	-	Construction stage	· Dangerous Goods Ordinance	· N/A
S9.6, para.8	H3	The explosives delivery trucks should be approved by Mines Division and should meet the regulatory requirements for transport of explosives.	To comply with the requirements for approval of an explosives delivery vehicle	Contractor	-	Construction stage	· Dangerous Goods Ordinance	· N/A
S9.10, para.7 and S9.18	H4	Blast cover should be provided for shaft at HMT, and kept closed during blasting. Provision of blast doors or heavy duty blast curtains should be implemented at the shaft to prevent flyrock and control the air overpressure.	To ensure safe use of explosives	Contractor	Shaft	Construction stage	-	· N/A
S9.16	H5	Only the required quantity of explosives for a particular blast should be transported to avoid the return.	To reduce risks during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	ž vcv
S9.18	H7	The approved truck dedicated for transport of explosives should comply with the “Guidance Note on Requirements for Approval of an Explosives Delivery Vehicle” issued by CEDD Mines Division. The truck should be periodically inspected and properly maintained in good operation conditions. The fuel carried in the fuel tank should be minimized to reduce the duration of fire. Adequate fire fighting equipment shall be provided, inspected and replaced periodically (e.g. fire extinguishers).	To reduce the risk during explosives transport	Contractor	Works areas of which explosives would be used	Construction stage	· Dangerous Goods Ordinance	· N/A
S9.18	H8	The driver and his assistant should be physically healthy, experienced and have good safe driving records. The driver should hold a proper driving licence for the approved transport truck. Dedicated training programme and regular road safety briefing sessions/ workshops should be provided to enhance their safe driving attitude and practice. Smoking should be strictly prohibited.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· Implemented
S9.18	H9	Emergency response plans in case of road accident should be prepared and implemented. The driver and his assistant should be familiar with the emergency procedures including evacuation, and proper communication/ fire-fighting equipment should be provided to the driver and his assistant.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· Implemented
S9.18	H10	Close liaison and communication among Mines Division, Contractors for transport of explosives, and working staff of the blasting should be established. In case of any change of work schedule leading to cancellation or variation of explosives required, relevant parties should be informed in time to avoid unused explosives at the work sites.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H11	Close liaison and communication with Fire Services Department should be established to reduce the accidental detonation escalated from a fire. The contractors for transport of explosives should use the preferred transport routes as far as practicable.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H12	Contingency plan should be prepared for transport of explosives under severe weather conditions such as rainstorms and thunderstorms.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H13	For explosive transport, all packages of explosives on the truck should be properly stored in the truck compartment as required. Packaging of the explosives should remain intact (i.e. damage free) until they are transferred to the blasting site.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H14	Availability of a parking space should be ensured before commencement of transport of explosives. Location for loading and unloading of explosives should be as close as possible to the shaft. No hot work should be performed in the vicinity during the time of loading and unloading.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H22	It is recommended to explore to minimize the use of the cartridged emulsion explosives and maximize the use of bulk emulsion explosive as far as practicable.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
S9.18	H24	It is recommended to explore to use smaller explosive charges such as ‘cast boosters’ or ‘mini-cast booster’ instead of cartridged emulsion as primers for bulk emulsion. This option reduces the quantity of explosives required for transportation for the sections where bulk emulsion will be used.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage	-	· N/A
Landscape & Visual
S10.10.1 Table 10.11	LV1	Good Site Management · Large temporary stockpiles of excavated material shall be covered with unobtrusive sheeting to prevent dust and dirt spreading to adjacent landscape areas and vegetation, and to create a neat and tidy visual appearance. · Construction plant and building material shall be orderly and carefully stored in order to create a neat and tidy visual appearance.	Minimize visual impact	Contractor	Within Project site	Construction stage	-	· Implemented
S10.10.1 Table 10.11	LV4	Screen Hoarding · Decorative screen hoarding should be erected to screen the public from the construction area. It should be designed to be compatible with the existing urban context.	Minimize visual impact	Contractor	Within Project site	Construction stage	-	· Implemented
S10.10.1 Table 10.11	LV5	Lighting Control during Construction · All lighting in the construction site shall be carefully controlled to minimize light pollution and night-time glare to nearby residencies and GIC. The Contractor shall consider other security measures, which shall minimize the visual impacts.	Minimize visual impact	Contractor	Within Project site	Construction stage	-	· Implemented
S10.10.1 Table 10.11	LV6	Erosion Control · The potential for soil erosion shall be reduced by minimizing the extent of vegetation disturbance on site and by providing a protective cover over newly exposed soil.	Minimize landscape impact	Contractor	Within Project site	Construction stage	-	· N/A
S10.10.1 Table 10.11	LV7	Tree Protection & Preservation · Carefully protected during construction. Tree protection measures will be detailed at the Tree Removal Application stage and plans submitted to the relevant Government Department for approval in due course in accordance with ETWB TC no. 3/2006.	Minimize landscape and visual impact	Contractor	Within Project site	Construction stage	· ‘Guidelines for Tree Risk Management and Assessment Arrangement on an Area Basis and on a Tree Basis’, Greening, Landscape and Tree Management (GLTM) Section, DEVB · Latest recommended horticultural practices from GLTM Section, DEVB	· Implemented
S10.10.1 Table 10.11	LV8	Tree Transplantation · For trees unavoidably affected by the Project that have to be removed, where practical transplantation will be chosen as the top priority method of removal. If this is not possible or practical compensatory planting will be provided for trees unavoidably felled (See LV10). For trees unavoidably affected by the Project works that are transplanted, transplantation must be carried out in accordance with ETWB TCW 2/2004 and 3/2006.	Minimize landscape and visual impact	Contractor	Within Project site and designated off-site locations	Prior to Construction stage	· ETWB TCW 3/2006 · Latest recommended horticultural practices from Greening, Landscape and Tree Management (GLTM) Section, DEVB · ETWB TCW 2/2004	· N/A
S10.10.1 Table 10.11	LV9	Compensatory Planting · For trees unavoidably affected by the Project that have to be removed, where practical transportation will be chosen as the top priority method of removal but if this is not possible or practical compensatory planting will be provided for trees unavoidably felled. All felled trees shall be compensated for by planting trees to the satisfaction of relevant Government projects. Required numbers and locations of compensatory trees shall be determined and agreed separately with Government during the Tree Felling Application process under ETWBTC 3/2006. · Compensatory tree planting may be incorporated into public open spaces and along roadside amenity areas affected by the construction works and therefore be part of the bigger wider planting plans. Onsite compensation planting is preferred but if necessary, additional receptor sites outside the Works Area shall be agreed separately with Government during the Tree Felling Application process.	Minimize visual impact and also enhance landscape	Contractor	Within Project site	Construction stage	· ETWB TCW 3/2006 · Latest recommended horticultural practices from Greening, Landscape and Tree Management (GLTM) Section, DEVB · ETWB TCW 2/2004	· Implemented
Cultural Heritage Impact (Construction Phase)
S11.4.4	CH1	The contractor should be alerted during the construction on the possibility of locating archaeological remains and as a precautionary measure, AMO shall be informed immediately in case of discovery of antiquities or supposed antiquities in the subject sites.	To preserve any cultural heritage items which may be removed and damaged by the excavation	Contractor	During construction works	Construction stage	· AMOs requirements	· Implemented
EM&A Project
S13.2	EM1	An Independent Environmental Checker needs to be employed as per the EM&A Manual	Control EM&A Performance	Highways Department	All construction sites	Construction stage	· EIAO Guidance Note No. 4/2010 · TM-EIAO	· Implemented
S13.2-13.4	EM2	· An Environmental Team needs to be employed as per the EM&A Manual; · Prepare a systematic Environmental Management Plan to ensure effective implementation of the mitigation measures; · An environmental impact monitoring needs to be implemented by the Environmental Team to ensure all the requirements given in the EM&A Manual are fully complied with.	Perform environmental monitoring & auditing	Highways Department/ Contractor	All construction sites	Construction stage	· EIAO Guidance Note No. 4/2010 · TM-EIAO	· Implemented

Date	Weather	Start Time	-	End Time	L_Aeq*	L₁₀*	L₉₀*
4/3/2019	Cloudy	9:27	-	9:57	69.0	70.8	66.4
9/3/2019	Cloudy	10:26	-	10:56	68.9	70.5	66.3
15/3/2019	Cloudy	9:41	-	10:11	68.2	70.6	66.5
21/3/2019	Sunny	9:08	-	9:38	67.7	70.1	66.0
27/3/2019	Sunny	9:14	-	9:44	68.1	70.5	66.3

Monthly Summary Waste Flow Table

Name of Department: Highways Department Contract No. / Works Order No.: __HY/2014/09__

Monthly Summary Waste Flow Table for March 2019

[to be submitted not later than the 15^th day of each month following reporting month] (All quantities shall be rounded off to 2 decimal places.)

Month	Actual Quantities of Inert Construction Waste Generated Monthly
	(a)=(b)+(c)+(d)+(e) Total Quantity Generated			(b) Hard Rock and Large Broken Concrete			(c) Reused in the Contract			(d) Reused in other Projects		(e) Disposed of as Public Fill		Imported Fill
	(in ‘000m³)			(in ‘000m³)			(in ‘000m³)			(in ‘000m³)		(in ‘000m³)		(in ‘000m³)
Jan	4.507			0.755			0.000			0.000		3.752		0.000
Feb	5.032			0.242			0.000			0.000		4.790		0.000
Mar	7.887			0.148			0.000			0.000		7.739		0.000
Apr
May
Jun
Sub-total*	17.426			1.145			0.000			0.000		16.281		0.000
Jul
Aug
Sep
Oct
Nov
Dec
Sub-total*	17.426			1.145			0.000			0.000		16.281		0.000

Month	Actual Quantities of Non-inert Construction Waste Generated Monthly
	Metals		Paper/ cardboard packaging			Plastics			Chemical Waste				Others, e.g. General Refuse disposed at Landfill
	(in ‘000kg)		(in ‘000kg)			(in ‘000kg)			(in ‘000kg)				(in ‘000m³)
	generated	recycled	generated		recycled	generated		recycled	generated		recycled		generated
Jan	0.000	0.000	0.000		0.000	0.000		0.000	0.000		0.000		0.003
Feb	0.000	0.000	0.000		0.000	0.000		0.000	0.000		0.000		0.002 0.002 (yard waste for recycle)
Mar	0.000	0.000	0.000		0.000	0.000		0.000	0.000		0.000		0.004 0.003 (yard waste for recycle)
Apr
May
Jun
Sub-total	0.000	0.000	0.000		0.000	0.000		0.000	0.000		0.000		0.014
Jul
Aug
Sep
Oct
Nov
Dec
Total	0.000	0.000	0.000		0.000	0.000		0.000	0.000		0.000		0.014

Location:	SKH Tsoi Kung Po Secondary School
Monitoring date:	4, 9, 15, 21, 27 March 2019
Parameter :	TSP 1-hour
Other Factors	nearby traffic

Location:	SKH Tsoi Kung Po Secondary School
Monitoring date:	4, 9, 15, 21, 27 March 2019
Parameter :	TSP 24-hour
Other Factors	Nearby Traffic emissions

Location:	SKH Tsoi Kung Po Secondary School
Monitoring date:	4, 9, 15, 21, 27 March 2019
Parameter :	L_eq,L_10,L₉₀
Other Factors	nearby traffic

EVENT	ACTION
	ET	IEC	ER	CONTRACTOR
Action Level	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Notify IEC and Contractor; 3. Report the results of investigation to the IEC, ER and Contractor; 4. Discuss with the Contractor and formulate remedial measures; 5. Increase monitoring frequency to check mitigation effectiveness.	1.Review the analysed results submitted by the ET; 2. Review the proposed remedial measures by the Contractor and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures are properly implemented	1. Submit noise mitigation proposals to IEC; 2. Implement noise mitigation proposals.
Limit Level	1. Identify source; 2. Inform IEC, ER, EPD and Contractor; 3. Repeat measurements to confirm findings; 4. Increase monitoring frequency; 5. Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented; 6. Inform IEC, ER and EPD the causes and actions taken for the exceedances; 7. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results; 8. If exceedance stops, cease additional monitoring.	1. Discuss amongst ER, ET, and Contractor on the potential remedial actions; 2. Review Contractors remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1.Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures properly implemented; 5. If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Resubmit proposals if problem still not under control; 5. Stop the relevant portion of works as determined by the ER until the exceedance is abated.

Date	1-hour TSP (μg/m³)
Date	Weather	Start Time	1^st Hour (μg/m³)	2^nd Hour (μg/m³)	3^rd Hour (μg/m³)
4/3/2019	Cloudy	9:26	63	60	65
9/3/2019	Cloudy	10:25	62	56	51
15/3/2019	Cloudy	9:40	57	52	59
21/3/2019	Sunny	9:07	57	63	68
27/3/2019	Sunny	9:13	65	69	62

Air Quality
Location	Action Level	Limit Level	Total
M-A3	0	0	0
Noise
Location	Action Level	Limit Level	Total
M-N3	0	0	0