Secondary Boundary Fence Section 4 - Monthly EM&A Report for Jan 2011

The Frontier Closed Area (FCA) is an integral part of the package of measures aimed at maintaining the integrity of the boundary of the Hong Kong Special Administrative Region (HKSAR) with mainland China, and combating illegal immigration and other cross-boundary criminal activities. Following a recent review, the HKSAR Government has concluded that with the erection of a secondary boundary fence (SBF) along the boundary patrol road (BPR) and construction of new sections of the BPR and primary boundary fence (PBF) at certain sections along the boundary, the FCA coverage can be substantially reduced without affecting the objective of maintaining the integrity of the boundary.

The PBF and SBF (hereafter referred to as ‘The Project’) will be erected along the northern and southern curbs of the realigned BPR respectively to facilitate the Hong Kong Police Force (HKPF) in combating cross-boundary criminal activities. The reduced FCA will comprise a narrow strip of land covering the realigned BPR and areas to its north, together with the points of crossing the boundary (i.e. the Boundary Control Points and Sha Tau Kok town). Areas south of the SBF will generally be excised from the FCA.

An Environmental Impact Assessment (EIA) for the proposed works was carried out under the Environmental Impact Assessment Ordinance (EIAO, Cap 499). An EIA Report and an Environmental Monitoring and Audit (EM&A) Manual were completed in January 2009 and approved by the Environmental Protection Department (EPD) in April 2009 (Register No. AEIAR-136/2009). The entire length of the proposed works is about 21.7 km from west of Pak Hok Chau to east of Sha Tau Kok and is divided into four sections. A general layout plan of the Project site is presented in Figure 1.1, while the location of the SBF at Section 4 in Sha Tau Kok is presented in Figure 1.2.

An Environmental Permit (EP) covering the overall proposed works was issued in June 2009 (Permit No. EP-347/2009). An application for Variation of the Environmental Permit (VEP) (Application No. VEP-314/2010) was subsequently submitted on 24 May 2010 and the amended Environmental Permit (Permit No. EP-347/2009/A) was issued by EPD on 9 June 2010.

With regard to Section 4, an application for a Further Environmental Permit (FEP) covering the works under Works Order No. ASD 010962 (also known as Works Order No. 1) was submitted to EPD on 2 March 2010 (Application No. FEP-104/2010) and this was granted on 29 March 2010 (Permit No. FEP-03/347/2009). Furthermore, another application for an FEP covering the works under Works Order Nos. ASD 010969 and ASD 010974 (also known as Works Order Nos. 2 and 3 respectively) – including a new section of SBF consisting of transparent panel, a new checkpoint and kiosk – was submitted to EPD on 13 August 2010 (Application No. FEP-112/2010) and was granted on 7 September 2010 (Permit No. FEP-04/347/2009/A).

The Architectural Services Department (ArchSD) has been entrusted with the management of the Project by the Project Proponent – the Secretary for Security of the HKSAR Government. Mott MacDonald Hong Kong Limited (MMHK) has in turn been commissioned by ArchSD as the consulting engineer for the entire Project under Consultancy Agreement No. 9SN005, and is the Engineer’s Representative (ER) for construction of the Project.

For Section 4 of the Project, MMHK and ENVIRON Hong Kong Limited (ENVIRON) have been commissioned as the Environmental Team (ET) and Independent Environmental Checker (IEC) respectively to undertake the Environmental Monitoring and Audit (EM&A) programme as described in the approved EM&A Manual of the Project. Also, the Contract to undertake and perform the construction works for Section 4 was awarded to Chun Wo Construction & Engineering Company Limited (‘The Contractor’) and is scheduled to last for approximately 18 months. It formally commenced on 28 May 2010, and the construction works and EM&A programme under the above-mentioned EP and FEP(s) also commenced on this date. The construction works programme is presented in Appendix A.

This monthly EM&A report summarises the environmental monitoring and audit works, list of activities and mitigation measures implemented at Section 4 during the period of 1 to 31 January 2011 inclusive (‘reporting month’).

The scope of works for Section 4 consists of:

¡ Erection of an SBF from the entrance of the Sha Tau Kok town (i.e. the location of ‘Gate One’) to the Sha Tau Kok Control Point (approximately 0.5 km);

¡ Use of transparent panel for a section of an SBF;

¡ Provision of a two-storey high checkpoint at ‘Gate One’;

¡ Addition of a kiosk/guard house on an existing footpath of Sha Tau Kok Road; and

¡ Removal of the existing checkpoint at Shek Chung Au.

1.2 Project Organisation

The organisation chart and lines of communication with respect to the on-site environmental management structure together with the contact information of the key personnel are shown in Appendix B.

1.3 Works Undertaken in the Reporting Month

The following activities have taken place during the reporting month:

Works Order No. 1 (ASD 010962):

¡ No major works. (Substantial completion was certified on 12 October 2010.)

Works Order No. 2 (ASD 010969):

¡ Tree pruning work;

¡ Installation of transparent panel for the new boundary fence;

¡ Construction of footing for the new boundary fence;

¡ Construction of steel frame and mesh for the new boundary fence;

¡ Excavation works for footing of steel fence;

¡ Reinstatement of pavement and carriageway; and

¡ Construction of footing for the new pedestrian gate.

Works Order No. 3 (ASD 010974):

¡ Erection of hoarding for the new check point;

¡ Construction of stud wall and retaining wall at the new check point site; and

¡ Construction of footing and super-structural works at the new check point site.

Figure 1.1: General Layout Plan

Figure 1.2: Location of Secondary Boundary Fence and Noise Monitoring Station at Section 4

1. EM&A Requirements

1.1 Summary of EM&A Requirements

The EM&A programme requires environmental monitoring of construction noise as well as environmental site inspections for air quality, noise, water quality, waste management, ecology, landscape and visual, as specified in the approved EM&A Manual.

Originally, the EM&A Manual designated two locations as noise monitoring stations during the construction phase. However, currently noise levels at only one of these monitoring stations (as shown in Figure 1.2) are monitored. The reasons for this arrangement are detailed in Section 3.2.

A summary of impact EM&A requirements is presented in Table 2.1. The Environmental Quality Performance Limits and the Event and Action Plans (for construction noise only) are shown in Appendix C and Appendix D respectively.

Table 2.1: Summary of EM&A Impact Requirements

Parameters	Description	Location(s)	Frequency	Duration
Air	On-site Inspection	Active Works Sites	Weekly	During Construction
Noise	L_eq, 30min	STK-DBD	Weekly	During Construction
Waste management	On-site Waste Audit	Active Works Sites	Weekly	During Construction
Waste management	On-site Waste Inspection	Active Works Sites	Weekly	During Construction
Wastewater	On-site Wastewater Audit	Active Works Sites	Weekly	During Construction
Ecology	On-site Audit of Recommended Ecological Mitigation Measures	Active Works Sites	Periodically (by Contractor)	As specified in EM&A Manual (see Table E.5)
Landscape and Visual	On-site Audit of Recommended Landscape and Visual Mitigation Measures	Active Works Areas	Regular intervals (by Contractor/ Landscape Sub-Contractor)	As specified in EM&A Manual (see Table E.6)
General Site Conditions	Environmental Site Inspection	Works areas and areas affected by works	Weekly	During Construction

1.2 Implementation of Environmental Mitigation Measures

The Contractor is required to implement mitigation measures listed in the latest valid EP and FEP(s) (where applicable), EIA Report and EM&A Manual. During routine site inspections, the Contractor's implementation of mitigation measures, if any, are to be inspected and reviewed. A schedule of the implementation of mitigation measures identified at the EIA stage is given in Appendix E.

2. Noise Impact Monitoring

2.1 Monitoring Parameters, Frequency and Duration

Following the requirements in the EM&A Manual for noise, noise monitoring has to be carried out during the construction phase. Continuous noise monitoring for the A-weighted levels L_eq, L₁₀ and L₉₀ is undertaken once per every week during daytime hours (between 07:00 and 19:00) on normal weekdays.

Table 3.1 summarizes the monitoring parameters, frequency and duration of air quality monitoring. The noise monitoring schedule during the reporting month is presented in Appendix F.

Table 3.1: Noise Monitoring Parameters, Frequency and Duration

Monitoring Station	Parameter	Frequency	Duration
STK-DBD	L_eq, L₉₀ & L₁₀	Once every week	30 min

2.2 Monitoring Location

Originally, two construction noise monitoring stations were proposed in the EM&A Manual, namely: STK03 (Block 1, Sha Tau Kok Estate) and STK05 (Village House at Sha Tau Kok). STK03 was mainly selected for the construction works related to the SBF and the new checkpoint in Sha Tau Kok, while STK05 was mainly selected for the removal of the existing checkpoint at Shek Chung Au.

However, access to STK03 to perform noise monitoring was not granted, therefore an alternative nearby location – STK-DBD (HKPF Operation Base, Sha Tau Kok Division, Border District) – was proposed by ET and agreed to by IEC and EPD. Baseline noise monitoring was subsequently conducted at STK-DBD from 16 to 29 March 2010.

Currently, there is no solid timetable or programme for the demolition works of the existing checkpoint at Shek Chung Au, although the end of 2011 has been proposed as a possible commencement date. This is subject to future confirmation of the demolition programme by the Security Bureau and HKPF. No noise monitoring at STK05 has been carried out at this stage.

As a result, only one noise impact monitoring station is included in the current EM&A programme for Section 4. The location of the agreed noise quality monitoring station is listed in Table 3.2 and shown in Figure 1.2.

Table 3.2: Noise Impact Monitoring Location

Monitoring Station	Description of Location	Type of measurement
STK-DBD	HKPF Operational Base, Sha Tau Kok Division, Border District	Façade

Monitoring Station

Description of Location

Type of measurement

STK-DBD

HKPF Operational Base,

Sha Tau Kok Division, Border District

Façade

2.3 Monitoring Equipment

Integrating Sound Level Meter will be used for noise monitoring. It is a Type 1 sound level meter capable of giving a continuous readout of the noise level readings including equivalent continuous sound pressure level (L_eq) and percentile sound pressure level (L_x). They comply with International Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1). Table 3.3 summarizes the noise monitoring equipment model(s) being used.

Table 3.3: Noise Monitoring Equipment

Equipment	Model(s)
Precision Integrating Sound Level Meter	Rion NL-18 & NL-31
Acoustic Calibrator	Castle GA607

2.4 Equipment Calibration

The calibration frequencies of the monitoring equipment are provided in Table 3.4.

Table 3.4: Noise Monitoring Equipment Calibration Frequencies

Equipment, Model and Serial Number	Calibration Frequency	Calibration Due Date(s)
Precision Integrating Sound Level Meter (NL7-SLM-02) Rion NL-18 (serial number 00570459)	Every year	12 Dec 2011
Precision Integrating Sound Level Meter Rion NL-31 (serial number 01262786)	Every year	10 May 2011
Acoustic Calibrator Castle GA607 (serial number 040162)	Every year	9 Dec 2011

The calibration certificates are presented in Appendix G.

2.5 Monitoring Methodology

2.5.1 Field Monitoring

¡ The Sound Level Meter was set on a tripod at a height of at least 1.2 m above the ground.

¡ Façade measurements were made at the monitoring locations.

¡ The battery condition was checked to ensure the correct functioning of the meter.

¡ Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:

- frequency weighting: A

- time weighting: Fast

- time measurement: 5-minute intervals (between 07:00 and 19:00); L_eq (30 min) was determined by calculating the logarithmic average of six L_eq (5-min) data.

¡ Prior to and after each noise measurement, the meter was calibrated using a Calibrator for 94 dB at 1 kHz. If the difference in the calibration level before and after measurement was more than 1 dB, the measurement would be considered invalid and have to be repeated after re-calibration or repair of the equipment.

¡ During the monitoring period, the L_eq, L₁₀ and L₉₀ noise levels were recorded. In addition, any site observations and noise sources were recorded on a standard record sheet.

2.5.2 Maintenance and Calibration

¡ The microphone head of the sound level meter and calibrator is cleaned with soft cloth at quarterly intervals.

¡ The meter and calibrator are sent to the supplier or Hong Kong Laboratory Accreditation Scheme (HOKLAS) laboratory to check and calibrate at yearly intervals.

2.6 Results of Impact Monitoring

The measured construction noise levels, in terms of L_eq (30-min), during the reporting month are summarised in Table 3.5. Detailed results, including general weather conditions and graphical presentations are presented in Appendix H.

Table 3.5: Results of Noise Impact Monitoring

Monitoring Station	Measured L_eq (30-min) Range, dB(A)	Limit Level for L_eq, dB(A)
STK-DBD	62 – 65	75

Note: All figures are rounded off to the nearest whole number.

No exceedance of Action / Limit Levels for construction noise was recorded.

No direct comparison between the measured noise levels and the construction noise levels predicted in the EIA Report for this Project was possible due to the minor nature of site works conducted during the reporting month.

Wind data obtained from the nearest Hong Kong Observatory monitoring station, at Ta Kwu Ling, covering all noise monitoring days during the reporting month is included in Appendix K.

3. Environmental Site Inspection and Audit

3.1 Site Inspections

Environmental site inspections were carried out on a weekly basis to monitor the proper implementation of environmental pollution control and mitigation measures for Section 4. In the reporting month, one monthly site inspections were carried out jointly by the ER, Contractor, ET and IEC on 31 January 2011, and additional weekly site inspections were carried out by the ER, Contractor and ET on 8, 14, 19 and 25 January 2011. The EM&A schedule is presented in Appendix F.

Major findings provided jointly by the ET and IEC during the joint monthly site inspections, and provided by ET during the additional weekly site inspections, are summarised in Table 4.1. In general, the works site areas were found to be in compliance with the environmental mitigation requirements listed in the EM&A Manual and no adverse impacts were found.

Table 4.1: Summary of Environmental Site Inspections

Date of Inspection	Major Observations	Status
8 Jan 2011	The Contractor is again reminded to provide and maintain all necessary tree protection works in the areas covered by Works Order No. 2. This includes placement of construction materials away from trees and proper fencing of precautionary areas.	Tree protection measures, including fencing of precautionary areas and backfilling of excavated soil as early as possible as possible after completion of footing for the new boundary fence, were provided in the works areas covered by Works Order No. 2, as observed on 31 Jan 2011. (closed)
	Extra hoarding was provided at the site entrance. However, some construction dust was still observed in the public area and should be cleared as soon as possible.	Construction dust was cleared from the public area, as observed on 14 Jan 2011. (closed)
	The EP and FEP were not observed at the new checkpoint site. The Contractor is asked to reinstate these as soon as possible.	The EP and FEP were displayed at the new checkpoint site entrance, as observed on 25 Jan 2011. (closed)
14 Jan 2011	Some material from site concrete works had spilt to the adjacent car park. The Contractor is reminded to prevent dusty construction materials from leaving the site area. Wheel wash facilities should be implemented if required.	As observed during the follow-up site inspection on 19 Jan 2011, water hose was used to clean a cement truck during concrete works before its departure from the new checkpoint site. No silty run-off or dusty construction materials were discharged from the site. (closed)
19 Jan 2011	Nil.	N/A
25 Jan 2011	Some discarded plastic bottles were observed within a site boundary. The Contractor is reminded to dispose of these properly.	Discarded plastic bottles were removed from site and disposed of, as observed on 31 Jan 2011. (closed)
31 Jan 2011	Nil.	N/A

3.2 Environmental Meetings

During the reporting month, one environmental meeting was held on 31 January 2011.

3.3 Status of Environmental Submissions, Permits and Licences

A summary of status of all environmental submissions, valid permits/licences, and/or notifications to EPD for this Project during the reporting month is presented in Table 4.2. A summary of submissions made under the valid EP and FEP(s) for Section 4 during the same period is presented in Table 4.3.

Table 4.2: Status of Environmental Submissions, Permits and Licences

Statutory Reference	Description	Permit / Reference No.	Valid Period	Status
EIAO	Environmental Permit	EP-347/2009/A	9 Jun 2010 – present	Valid
EIAO	Further Environmental Permit	FEP-03/347/2009	29 Mar 2010 – present	Valid
EIAO	Application for Further Environmental Permit (Remaining Section)	FEP-112/2010	-	Submitted to EPD on 13 Aug 2010. Approved by EPD on 7 Sep 2010.
EIAO	Further Environmental Permit (Remaining Section)	FEP-04/347/2009/A	7 Sep 2010 – present	Valid
APCO	Notification pursuant to Section 3(1) of the Air Pollution Control (Construction Dust) Regulation (Form NA)	312959 EPD notified on 4 Jan 2010	-	Valid

Legend: EIAO – Environmental Impact Assessment Ordinance (Cap 499)

APCO – Air Pollution Control Ordinance (Cap 311)

WPCO – Water Pollution Control Ordinance (Cap 358)

WDO – Waste Disposal Ordinance (Cap 354)

NCO – Noise Control Ordinance (Cap 400)

Table 4.3: Environmental Submissions Made under the Valid EP & FEP(s) during the Reporting Month

EP/FEP Ref.	Description	Submission Date
EP Condition 4.5 & FEP(s) Condition 4.5	Monthly EM&A Report (Dec 2010)	14 Jan 2011

3.4 Advice on the Solid and Liquid Waste Management Status

The construction and demolition (C&D) material and general refuse generated by Section 4 of the Project in the reporting month are shown in Appendix I. Wastes were handled and disposed from site in accordance with the EM&A Manual and all relevant legislation and regulations.

3.5 Review of Environmental Monitoring Procedures

The monitoring works conducted by the Environmental Team have been reviewed regularly. No changes in the environmental monitoring procedures are considered necessary at this stage.

3.6 Implementation Status of Environmental Mitigation Measures

An Implementation Schedule of Mitigation Measures from the EIA Report / EM&A Manual is provided in Appendix E, in the following order (see Table 4.4):

Table 4.4: Implementation Schedule of Mitigation Measures

Parameter	Table
Air Quality	Table E.1
Noise	Table E.2
Water Quality	Table E.3
Waste Management	Table E.4
Ecology	Table E.5
Landscape and Visual	Table E.6

4. Record of Non-compliance, Complaints, Notifications of Summons and Successful Prosecutions

4.1 Non-compliance of Action and Limit Levels

There was no breach of Action or Limit Levels for construction noise impact monitoring in the reporting month.

4.2 Environmental Complaints

No environmental complaints were received or made against Section 4 of the Project during the reporting month. The complaint log is presented in Appendix J.

4.3 Notifications of Summons and Successful Prosecutions

No notifications of summons or successful prosecution were received or made against Section 4 of the Project during the reporting month.

5. Future Key Issues

5.1 Construction Programme for the Next Reporting Month

The major construction works forecast for Section 4 in February 2011 will be:

Works Order No. 1 (ASD 010962):

¡ No major works forecast.

Works Order No. 2 (ASD 010969):

¡ Tree felling and pruning work;

¡ Delivery of materials to site;

¡ Installation of transparent panel for the new boundary fence.

¡ Construction of footing for the new boundary fence;

¡ Erection of steel frame and mesh along the boundary fence; and

¡ Excavation works for the new boundary fence;

¡ Fabrication works for the new boundary fence;

¡ Construction of footing for the new pedestrian gate.

¡ Construction of footing for the new vehicular gates.

Works Order No. 3 (ASD 010974):

¡ Erection of hoarding for the new check point;

¡ Construction of retaining wall at the new check point site; and

¡ Construction of footing and super-structural works at the new check point site.

5.2 Key Issues for the Next Reporting Month

Based on the forecast major construction works listed in Section 6.1, the key environmental issues to be considered include:

5.2.1 Air

¡ All plant and equipment to be maintained to prevent any undue air emissions.

¡ Any excavated dusty materials or stockpile of dusty materials should be covered entirely by impervious sheeting or sprayed with water so as to maintain the entire surface wet, and recovered or backfilled or reinstated within 24 hours of the excavation or unloading;

¡ All dusty materials should be sprayed with water prior to any loading, unloading or transfer; and

¡ Every vehicle should be washed to remove any dusty materials from its body and wheels before leaving the construction sites.

5.2.2 Noise

¡ Noisy equipment and noisy activities should be located as far away from the Noise Sensitive Receivers (NSRs) as is practical;

¡ Unused equipment should be turned off. Powered Mechanical Equipment (PME) should be kept to a minimum and the parallel use of noisy equipment / machinery should be avoided;

¡ Adoption of Level 1 site-specific direction mitigation measures (use of quiet plant and movable noise barrier) for construction/demolition work undertaken at a distance of 60m or less to the NSRs; and

¡ Regular maintenance of all plant and equipment.

5.2.3 Water Quality

¡ No discharge of silty water into the storm drain and drainage channel within and the vicinity of the site;

¡ Any construction plant which causes pollution to the water system due to leakage of oil or fuel shall be removed off-site immediately; and

¡ Excavated soil which needs to be temporarily stockpiled should be stored in a specially designated area and provided with a tarpaulin cover to avoid runoff into the drainage channels.

5.2.4 Waste

¡ Control measures should be taken at the stockpiling area to prevent the generation of dust and pollution of stormwater channels, fish ponds or river channels;

¡ Different types of waste should be segregated, stored, transported and disposed of in accordance with the relevant legislative requirements and guidelines; and

¡ Records of quantities of wastes generated, recycled and disposal (with locations) shall be kept.

5.2.5 Ecology

¡ Good site practices for controlling the dust and water quality (avoid stockpiles adjacent to wetlands, covering the stockpiles with impervious sheeting, control of vehicle speed, no discharge of silty water to the rivers, streams and drainage channels); and

¡ Clear definition of works limit to avoid impact on adjacent habitats.

5.2.6 Landscape and Visual

¡ Retain trees that have high amenity or ecology value and contribute most to the landscape and amenity of the site and its immediate environs;

¡ Creation of precautionary area around trees to be retained equal to half of the tree canopy diameter. Precautionary area to be fenced;

¡ Prohibition of the storage of materials including fuel, the movement of construction vehicles, and the refuelling and washing of equipment including concrete mixers within the precautionary area;

¡ Pruning of the branches of existing trees identified for transplantation and retention to be based on the principle of crown thinning maintaining their form and amenity value;

¡ The rectification and repair of damaged vegetation following the construction phase to its original condition prior to the commencement of the works or replacement using specimens of the same species, size and form where appropriate to the design intention of the area affected;

¡ All works affecting the trees identified for retention and transplantation will be carefully monitored. This includes the key stages in the preparation of trees, the implementation of protection measures and health monitoring throughout the construction period; and

¡ Construction site controls should be enforced including the storage of materials, the location and appearance of site accommodation and the careful design of site lighting to prevent light spillage.

5.3 Monitoring Schedule for the Next Reporting Month

The tentative schedule for environmental monitoring in February 2011 is provided in Appendix F. Actual monitoring dates may change due to unforeseen events such as inclement weather.

6. Conclusions and Recommendations

6.1 Conclusions

The construction phase and EM&A programme for Section 4 commenced on 28 May 2010. EM&A was performed from 1 to 31 January 2011 during which some minor site works have commenced. All monitoring and audit results in the reporting month were checked and reviewed.

Construction noise monitoring was carried out in the reporting month. As no noise-related complaint was received or follow-up by ET during the reporting month, no Action Level exceedance was recorded. All noise monitoring results obtained complied with the Limit Level.

Environmental site inspections were carried out five times during the reporting month. During the site audits, recommendations on remedial actions were given to the Contractor for any deficiencies identified.

Wastes were handled and disposed from site in accordance with the EM&A Manual and all relevant legislation and regulations.

No environmental complaints, notification of summons of successful prosecutions were received or made against Section 4 of the Project during the reporting month.

Overall, the EM&A programme for Section 4 during the reporting month was in compliance with the relevant EIA Report, EM&A Manual, EP and FEP(s) and all relevant legislation and regulations.

6.2 Recommendations

No further recommendations were made at this stage pending more site progress achieved.

Appendices

Appendix A. Construction Works Programme____________________________________________________ 16

Appendix B. Project Organisation Chart for Section 4_______________________________________________ 17

Appendix C. Environmental Quality Performance Limits_____________________________________________ 18

Appendix D. Event and Action Plans____________________________________________________________ 19

Appendix E. Schedule of Mitigation Measures from the EIA Report and EM&A Manual______________________ 21

Appendix F. EM&A Schedule_________________________________________________________________ 33

Appendix G. Calibration Certificates____________________________________________________________ 34

Appendix H. Noise Monitoring Results and Graphical Presentation____________________________________ 35

Appendix I. Monthly Waste Flow Table_________________________________________________________ 37

Appendix J. Complaint Log__________________________________________________________________ 39

Appendix K. Weather Information from Hong Kong Observatory_______________________________________ 40

Appendix A. Construction Works Programme

Appendix B. Project Organisation Chart for Section 4

Appendix C. Environmental Quality Performance Limits

Table C.1: Action and Limit Levels for Construction Noise

Time Period	Action Level	Limit Level
Daytime (07:00-19:00) except general holidays and Sundays Measurements in L_eq (30min)	When one documented complaint is received	75 dB(A)

Time Period

Action Level

Limit Level

Daytime (07:00-19:00) except general holidays and Sundays

Measurements in L_eq (30min)

When one documented complaint is received

75 dB(A)

Appendix D. Event and Action Plans

Table D.1: Event and Action Plan for Construction Noise

EVENT	ACTION
	ET Leader	IEC	ER	Contractor
Action Level	1. Notify IEC and the Contractor. 2. Carry out investigation. 3. Report the results of investigation to IEC and the Contractor. 4. Discuss with the Contractor and formulate remedial measures. 5. Increase monitoring frequency to check mitigation measures.	1. Review with analyzed results submitted by ET. 2. Review the proposed remedial measures by the Contractor and advise ER accordingly. 3. Supervise the implement of remedial measures.	1. Confirm receipt of notification of exceedance in writing. 2. Notify the Contractor. 3. Require the Contractor to propose remedial measures for the analyzed 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 the source. 2. Notify IEC, ER, EPD and the Contractor. 3. Repeat measurement 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 & actions taken for the exceedances. 7. Assess effectiveness of the 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 Leader and the Contractor on the potential remedial actions. 2. Review the Contractor’s remedial actions whenever necessary to assure their effectiveness and advise ER accordingly. 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of exceedance in writing. 2. Notify the Contractor. 3. Require the Contractor to propose remedial measures for the analyzed noise problem. 4. Ensure remedial measures are properly implemented. 5. If exceedance continues, consider what activity of the work is responsible and instruct the Contractor to stop that activity 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 activity of works as determined by the ER until the exceedance is abated.

Appendix E. Schedule of Mitigation Measures from the EIA Report and EM&A Manual

Table E.1: Recommended Mitigation Measures – Air Quality

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
2.5.2	3.2.2	The following good site practice should be implemented: ¡ any excavated dusty materials or stockpile of dusty materials should be covered entirely by impervious sheeting or sprayed with water so as to maintain the entire surface wet, and recovered or backfilled or reinstated within 24 hours of the excavation or unloading; ¡ the working area of excavation should be sprayed with water immediately before, during and immediately after the operations so as to maintain the entire surface wet; ¡ dusty materials carried by vehicle leaving a construction site should be covered entirely by clean impervious sheeting; ¡ the area where vehicle washing takes place and the section of the road between the washing facilities and the exit point should paved with concrete, bituminous materials or hardcores; ¡ the portion of road leading only to a construction site that is within 30m of designated vehicle entrance or exit should be kept clear of dusty materials; ¡ all dusty materials should be sprayed with water prior to any loading, unloading or transfer; ¡ vehicle speed should be limited to 10kph except on completed access roads; ¡ every vehicle should be washed to remove any dusty materials from its body and wheels before leaving the construction sites.	Contractor	DC	4, REC

EIA Ref.

EM&A Manual Ref.

Recommended Mitigation Measures

Who to implement?

When to implement? (1)

Implementation Status (2)

2.5.2

3.2.2

The following good site practice should be implemented:

¡ any excavated dusty materials or stockpile of dusty materials should be covered entirely by impervious sheeting or sprayed with water so as to maintain the entire surface wet, and recovered or backfilled or reinstated within 24 hours of the excavation or unloading;

¡ the working area of excavation should be sprayed with water immediately before, during and immediately after the operations so as to maintain the entire surface wet;

¡ dusty materials carried by vehicle leaving a construction site should be covered entirely by clean impervious sheeting;

¡ the area where vehicle washing takes place and the section of the road between the washing facilities and the exit point should paved with concrete, bituminous materials or hardcores;

¡ the portion of road leading only to a construction site that is within 30m of designated vehicle entrance or exit should be kept clear of dusty materials;

¡ all dusty materials should be sprayed with water prior to any loading, unloading or transfer;

¡ vehicle speed should be limited to 10kph except on completed access roads;

¡ every vehicle should be washed to remove any dusty materials from its body and wheels before leaving the construction sites.

Contractor

4, REC

Legend: (1) DC - During Construction

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Table E.2: Recommended Mitigation Measures – Noise

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
3.8.14	4.8.1	The following good site practical should be implemented: ¡ The Contractor shall adopt the Code of Practice on Good Management Practice to Prevent Violation of the Noise Control Ordinance (Chapter 400) (for Construction Industry) published by EPD; ¡ The Contractor shall observe and comply with the statutory and non-statutory requirements and guidelines; ¡ Before commencing any work, the Contractor shall submit to the Engineer Representative for approval the method of working, equipment and noise mitigation measures intended to be used at the site; ¡ The Contractor shall devise and execute working methods to minimise the noise impact on the surrounding sensitive uses, and provide experienced personnel with suitable training to ensure that those methods are implemented; ¡ Noisy equipment and noisy activities should be located as far away from the Noise Sensitive Receivers (NSRs) as is practical; ¡ Unused equipment should be turned off. Powered Mechanical Equipment (PME) should be kept to a minimum and the parallel use of noisy equipment / machinery should be avoided; ¡ Regular maintenance of all plant and equipment; ¡ Material stockpiles and other structures should be effectively utilised as noise barriers, where practicable.	Contractor	DC	4
3.8.1 -3.8.3	4.8.2 -4.8.3	Other than good site practice, the Contractor is required to adopt Levels 1 and 2 site-specific direct mitigation measures as specified below during the construction phase. With construction / demolition work undertaken at a distance of 60m or less to the NSRs, below mitigation measures should be included: Level 1 – Use of Quiet Plant and Movable Noise Barrier ¡ The Contractor shall obtain particular models of plant that are quieter than standards given in the Technical Memorandum on Noise from Construction Work other than Percussive Piling (GW-TM). ¡ Purpose-built movable noise barriers should be used to mitigate construction noise directly at sources that are not usually mobile provide that the direct line of sight to the source is blocked.	Contractor	DC	P
3.8.9	4.8.4	In addition to the use of quiet plant and movable noise barrier, alternative demolition method of existing boundary fence at Section 2-3 shall be used where demolition works would be undertaken at a distance of 12m or less to the NSRs. These particular mitigation measures should be included: Level 2 – Alternative Demolition Method of Existing Boundary Fence ¡ The use of welder is recommended to replace the use of hand-held driller; ¡ The use of hand-held breaker with movable noise barrier is recommended to replace the use of mini-robot mounted breaker; and the duration for the use of hand-held breaker is minimal as only the surface level of the footing to be broken; and ¡ The removal of the footing of the existing boundary fence should be carried by concrete crusher mini-robot mounted after the surface level broken by hand-held breaker.	Contractor	DC	P

Legend: (1) DC - During Construction

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Table E.3: Recommended Mitigation Measures – Water Quality

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
4.7.1	5.3.1	Good site practices in addition to the implementation of mitigation measures would minimize the impact to the surrounding environment. General Prevention and Precaution Measures: ¡ The site should be confined to avoid silt runoff to the site. ¡ No discharge of silty water into the storm drain and drainage channel within and the vicinity of the site. ¡ Any soil contaminated with chemicals/oils shall be removed from site and the void created shall be filled with suitable materials. ¡ Stockpiles to be covered by tarpaulin to avoid spreading of materials during rainstorms; ¡ Suitable containers shall be used to hold the chemical wastes to avoid leakage or spillage during storage, handling and transport; ¡ Chemical waste containers shall be labelled with appropriate warning signs in English and Chinese to avoid accidents. there shall also be clear instructions showing what action to take in the event of an accidental; ¡ Storage areas shall be selected at safe locations on site and adequate space shall be allocated to the storage area; ¡ Any construction plant which causes pollution to the water system due to leakage of oil or fuel shall be removed off-site immediately; ¡ Spillage or leakage of chemical waste to be controlled by using suitable absorbent materials; ¡ Chemicals will always be stored on drip trays or in bunded areas where the volume is 110% of the stored volume; ¡ Regular clearance of domestic waste generated in the temporary sanitary facilities to avoid waste water spillage. ¡ Temporary sanitary facilities to be provided for on-site workers during construction.	Contractor	DC	4, REC
4.7.2 - 4.7.3	5.3.2 - 5.3.3	Concreting Work A temporary drainage channel and associated facilities should be provided to collect the runoff generated and prevent concrete-contaminated water from entering watercourses. Adjustment of pH can be achieved by adding a suitable neutralising reagent to wastewater prior to discharge. The concreting works should be temporarily isolated with proper methods, such as by placing of sandbags or silt curtains with lead edge at bottom and properly supported props.	Contractor	DC	N/A
4.7.4	5.3.4	Soil Excavation and Stockpiling Excavated soil which needs to be temporarily stockpiled should be stored in a specially designated area and provided with a tarpaulin cover to avoid runoff into the drainage channels.	Contractor	DC	4
4.7.5 - 4.7.6	5.3.5 -5.3.6	Site Depot All compounds in works areas should be located on areas of hard standing with provision of drainage channels and settlement ponds where necessary to allow interception and controlled release of settled/treated water. Hard standing compounds should drain via an oil interceptor. The oil interceptor should be regularly inspected and cleaned to avoid wash-out of oil during storm conditions. A bypass should be provided to avoid overload of the interceptor's capacity. Any contractor generating waste oil or other chemicals as a result of his activities should register as a chemical waste producer. Disposal of the waste oil should be done by a licensed collector. Good housekeeping practices should be implemented to minimise careless spillage and to keep the storage and the work space in a tidy and clean condition. Appropriate training including safety codes and relevant manuals should be given to the personnel who regularly handle the chemicals on site.	Contractor	DC	P
4.7.7	5.3.7	Construction of Checkpoint Sewage system should be constructed to divert domestic sewage, which will be generated from the sanitary facilities provided in the new checkpoint at Sha Tau Kok, to public sewer connected to government sewage treatment facilities.	Contractor	DC	N/A

Legend: (1) DC - During Construction

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Table E.4: Recommended Mitigation Measures – Waste Management

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
5.6.7	6.3.6	Site Clearance The topsoil and vegetation removed and excavated material may have to be temporarily stockpiled on-site. Control measures should be taken at the stockpiling area to prevent the generation of dust and pollution of stormwater channels, fish ponds or river channels. However, to eliminate the risk of blocking drains in the wet season, it is recommended that stockpiling of excavated materials during the wet season should be avoided as far as practicable.	Contractor	DC	4
5.6.10 - 5.6.12	6.3.8	Construction and Demolition Materials Careful design, planning and good site management can minimize over-ordering and generation of waste materials such as concrete mortars and cement grouts. The design of formwork should maximize the use of standard wooden panels so to achieve high reuse levels. Alternatives such as steel formwork or plastic facing should be considered to increase the potential for reuse. The Contractor should recycle as much of the C&D materials as possible on-site. Proper segregation of waste on-site will increase the feasibility of certain components of the waste stream by the recycling contractors. Different areas of the worksite shall be designated for such segregation and storage wherever site conditions permit. Trip-ticket system should be employed to monitor the disposal of C&D material and solid at public filling facilities and landfills, and to control fly-tipping. Government has established a differentiated charging scheme for the disposal of waste to landfill, construction waste sorting facilities and public fill facilities. This will provide additional incentives to reduce the volume of waste generated and to ensure proper segregation of wastes.	Contractor	DC	4
5.6.13 - 5.6.14	6.3.9 - 6.3.13	Chemical Waste For those processes which generate chemical waste, it may be possible to find alternatives which generate reduced quantities or even no chemical waste, or less dangerous types of chemical waste. Chemical waste that is produced, as defined by Schedule 1 of the Waste Disposal (Chemical Waste) (General) Regulation, should be handed in accordance with the Code of Practice on the Packaging, Handling and Storage of Chemical Waste as follows: 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 litres unless the specification have been approved by the EPD; and ¡ display a label in English and Chinese in accordance with instructions prescribed in Schedule 2 of the Regulations, The storage area for chemical wastes should: ¡ be clearly labelled and used solely for the storage of chemical waste; ¡ be enclosed on at least 3 sides; ¡ have an impermeable floor and bunding, of capacity to accommodate 110% of the volume of the largest container or 20% by volume of the chemical waste stored in that area whichever is the greatest; ¡ have adequate ventilation; ¡ be covered to prevent rainfall entering (water collected within the bund must be tested and disposed as chemical waste if necessary); and ¡ be arranged so that incompatible materials are adequately separated. Disposal of chemical waste should: ¡ be via a licensed waste collector; and ¡ be to a facility licensed to receive chemical waste, such as the Chemical Waste Treatment Facility which also offers a chemical waste collection service and can supply the necessary storage containers, or ¡ to be re-user of the waste, under approval from the EPD.	Contractor	DCP	N/A
5.6.16	6.3.15	General Refuse Should be stored in enclosed bins or compaction units separate from C&D and chemical wastes. The Contractor should employ a reputable waste collector to remove general refuse from the site, separate from C&D and chemical wastes, on a regular basis to minimise odour, pest and litter impacts. Burning of refuse on construction sites is prohibited by law.	Contractor	DC	4, REC
5.6.18	6.3.16	Construction Waste Management Plan A construction waste management plan (CWMP) should be prepared and developed by the contractor to ensure proper collection, treatment and disposal of waste on site. This CWMP will also take into account the requirement to handle chemical wastes on site which will need to be managed by a licensed waste collection contractor.	Contractor	DC	4

Legend: (1) DC - During Construction

DCP - During Construction Planning

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Table E.5: Recommended Mitigation Measures – Ecology

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
Table 6.38	7.2	Ecological Impacts on Floral Species of Conservation Concern ¡ Erection of protective fencing to protect the plant during construction period	Contractor	DC	4
Table 6.40	7.2	Potential Ecological Impacts on Offsite Habitats ¡ Good site practices for controlling the dust and water quality (avoid stockpiles adjacent to wetlands, covering the stockpiles with impervious sheeting, control of vehicle speed, no discharge of silty water to the rivers, streams and drainage channels); ¡ Clear definition of works limit to avoid impact on adjacent habitats.	Contractor	DC	4
Table 6.39 - Table 6.45	7.2	Disturbance to Wetland-Dependent Birds, Raptors, Terrestrial Birds and Egretry ¡ Good working practices include switching off unused equipment, keep minimum number of powered mechanical equipment in operation at the same period, the use of stockpiles and other structures to form noise barriers where practicable, avoidance of feeding the wildlife to cause disturbance, site confinement and proper cover of stockpiles with impervious sheeting to minimize construction noise, uncontrolled surface runoff and discharge of silts; ¡ Avoidance of construction works using Power Mechanical Equipments within the Wetland Conservation Area during bird migratory season (15th November – 15th March); and ¡ Restriction of excavation works within a 150m buffer zone from the egretry to ardeid non-breeding season (from August to February).	Contractor	DC	4

Legend: (1) DC - During Construction

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Table E.6: Recommended Mitigation Measures – Landscape and Visual

EIA Ref.	EM&A Manual Ref.	Recommended Mitigation Measures	Who to implement?	When to implement? (1)	Implementation Status (2)
		Preservation of Existing Vegetation
Table 7-13 CP1	Table 9-1	¡ To retain trees that have high amenity or ecology value and contribute most to the landscape and visual amenity of the site and its immediate environs.	Project Landscape Architect / Contractor	TCP	4
Table 7-13 CP1	Table 9-1	¡ Creation of precautionary area around trees to be retained equal to half of the trees canopy diameter. Precautionary area to be fenced.	Project Landscape Architect / Contractor	BCP	4
Table 7-13 CP1	Table 9-1	¡ Prohibition of the storage of materials including fuel, the movement of construction vehicles, and the refuelling and washing of equipment including concrete mixers within the precautionary area.	Project Landscape Architect / Contractor	TCP	4, REC
Table 7-13 CP1	Table 9-1	¡ Phased segmental root pruning for trees to be retained and transplanted over a suitable period (determined by species and size) prior to lifting or site formation works which affect the existing rootball of trees identified for retention. The extent of the pruning will be based on the size and the species of the tree in each case.	Project Landscape Architect / Contractor	TCP	4
Table 7-13 CP1	Table 9-1	¡ Pruning of the branches of existing trees identified for transplantation and retention to be based on the principle of crown thinning maintaining their form and amenity value.	Project Landscape Architect / Contractor	TCP	4
Table 7-13 CP1	Table 9-1	¡ The watering of existing vegetation particularly during periods of excavation when the water table beneath the existing vegetation is lowered.	Project Landscape Architect / Contractor	TCP	N/A
Table 7-13 CP1	Table 9-1	¡ The rectification and repair of damaged vegetation following the construction phase to its original condition prior to the commencement of the works or replacement using specimens of the same species, size and form where appropriate to the design intention of the area affected.	Project Landscape Architect / Contractor	TCP	N/A
Table 7-13 CP1	Table 9-1	¡ All works affecting the trees identified for retention and transplantation will be carefully monitored. This includes the key stages in the preparation of the trees, the implementation of protection measures and health monitoring through out the construction period.	Project Landscape Architect / Contractor	TCP	4, REC
Table 7-13 CP1	Table 9-1	¡ Detailed landscape and tree preservation proposals will be submitted to the relevant government departments for approval under the lease conditions and in accordance with ETWB TCW No. 2/2004 and WBTC No. 3/2006.	Project Landscape Architect / Contractor	TCP	P
Table 7-13 CP1	Table 9-1	¡ The tree preservation works should be implemented by approved Landscape Contractors and inspected and approved on site by a qualified Landscape Architect. A tree protection specification would be included within the contract documents.	Contractor	TCP	4
		Preservation of Existing Topsoil
Table 7-13 CP2	Table 9-1	¡ Topsoil disturbed during the construction phase should be tested using a standard soil testing methodology and where it is found to be worthy of retention stored for re-use.	Contractor	TCP	4
Table 7-13 CP2	Table 9-1	¡ The soil will be stockpiled to a maximum height of 2m and will be either temporarily vegetated with hydroseeded grass during construction or covered with a waterproof covering to prevent erosion.	Contractor	TCP	4
Table 7-13 CP2	Table 9-1	¡ The stockpile should be turned over on a regular basis to avoid acidification and the degradation of the organic material, and reused after completion. Alternatively, if this is not practicable, it should be considered for use elsewhere, including other projects.	Contractor	TCP	4
		Permanent and Temporary Works Areas
Table 7-13 CP3	Table 9-1	¡ Where appropriate to the final design the landscape of these works areas should be restored following the completion of the construction phase.	Contractor	TCP	N/A
Table 7-13 CP3	Table 9-1	¡ Construction site controls should be enforced including the storage of materials, the location and appearance of site accommodation and the careful design of site lighting to prevent light spillage.	Contractor	TCP	4
		Mitigation Planting
Table 7-13 CP4	Table 9-1	¡ Replanting of disturbed vegetation should be undertaken at the earliest possible stage of the construction phase.	Contractor	TCP	N/A
Table 7-13 CP4	Table 9-1	¡ Use of native plant species predominantly in the planting design for the buffer areas.	Contractor	TCP	N/A
Table 7-13 CP4	Table 9-1	¡ The tree planting works should be implemented by approved Landscape Contractors and inspected and approved on site by a qualified Landscape Architect. A tree planting specification would be included within the contract documents.	Contractor	TCP	N/A
		Transplantation of Existing Trees
Table 7-13 CP5	Table 9-1	¡ The tree transplanting works should be implemented by approved Landscape Contractors and inspected and approved on site by a qualified Landscape Architect. A tree protection / transplanting specification would be included within the contract documents.	Contractor	PTCPW	N/A
		Design of the Fence and associated Structures
Table 7-14 OP1	Table 9-2	Design of Boundary Fence, Boundary Patrol Road and Police Check Point – These structural elements will be designed in accordance with security requirement from Police Force and incorporate design features as part of design mitigation measures including: 1. Integrated design approach – the boundary fence should integrated, as far as technically feasible, with existing built structures such as existing road, footpath and track and embankment of fishponds, river and drainage channel as part of design mitigation measures to reduce the potential cumulative impact of the proposed works. The location and orientation of the police check points should be away from landscape and visually sensitive areas such wetland, fishpond and agricultural field. 2. Building massing - the proposed use of simple responsive design for the built structures with a low building height profile to reduce the potential visual mass of the structure within a rural context. 3. Treatment of built structures - the architectural design should seek to reduce the apparent visual mass of the facilities further through the use of natural materials such as wooden frame, vertical greening or other sustainable materials such as recycled plastic. 4. Responsive building and fence finishes - In terms of the proposed finishes natural tones should be considered for the colour palette with non-reflective finishes are recommended to reduce glare effect. The use of colour blocking on the proposed fence could be used to break up the visual mass of the structure. 5. Responsive lighting design – Aesthetic design of architectural and track lighting with following glare design measures: - Directional and full cut off lighting is recommended particularly for areas adjacent to existing village to minimise light spillage. - Minimise geographical spread of lighting, only applied for safety and security reasons; - Limited lighting intensity to meet the minimum safety and operation requirement; and - High-pressure sodium road lighting is recommended for more stringent light control reducing spillage and thus visual impacts.	ArchSD	TDP	P
		Compensatory Planting Proposals
Table 7-14 OP2	Table 9-2	¡ Utilise native to Hong Kong will be utilized within the buffer planting areas.	Contractor	TDP	P
Table 7-14 OP2/3	Table 9-2	¡ A qualified or registered landscape architect will be involved in the design, construction supervision and monitoring, and maintenance period to oversee the implementation of the recommended landscape and visual mitigation measures including the tree preservation and landscape works on site.	Contractor	TDP	4
Table 7-14 OP2	Table 9-2	Tree and Shrub Planting – Given the rural nature of the proposed alignment it is recommended that the where possible tree and shrub species which are native to Hong Kong be used. In addition where possible the planting of new trees and shrubs will aim to link together existing woodland areas and small tree groups to improve the connectivity between habitats and create more coherent landscape framework. The planting of small groups of trees along the alignment of the proposed fence will serve to de-emphasise the horizontality of the fence structure and provide for better sense of visual integration with the landscape context. Where practicable vertical greening measures should also be considered on engineering structures.	Contractor	TDP	P
Table 7-14 OP2	Table 9-2	Compensatory Planting Proposals – Given the works extent is largely limited along existing roadside embankment to minimise impact to existing village settlements and valuable landscape resources such as wetland, fishpond, stream course and existing trees, and considered the importance of tree retention within the works area, new tree planting will concentrate in selected new amenity areas along the alignment, infilling between retained and transplanted trees. The preliminary planting proposals for the proposed works include the planting of some 357 new trees utilising a combination of mature to light standard sized stock (i.e. approximately 15% of mature trees, 75% of standard trees, and 10% light standard trees). These trees will be planted in woodland clumps and small tree groups at strategic locations to de-emphasise the horizontality of the fence alignment. Based on preliminary findings the proposed planting will result in a compensatory planting ratio of 1:1 (new planting: trees recommended for felling). This compares favourably with the report's assertion that some 357 trees would be felled due to the proposed works. With the proposed preservation of existing trees, transplantation of trees in conflict with the proposals and the planting of new trees the project area will contain approximately 2000 trees. Trees forming part of the new planting will provide screening to neighbourhood villagers and will utilise species native to Hong Kong. These proposals will be subject to review at detailed design stage of the project.	Contractor	TDP	P

Legend: (1) TCP - Throughout Construction Phase

BCP - Before Construction Phase Commences

PTCPW - Prior to the Commencement of the Proposed Works

TDP - Throughout Design Phase

(2) 4 - Implemented

P - Partially Implemented

5 - Not Implemented

REC - Rectified by Contractor

(REC) - Partially Rectified by Contractor

! - Pending Contractor’s Rectification Action

N/A - Not Applicable

Appendix F. EM&A Schedule

Appendix G. Calibration Certificates

Appendix H. Noise Monitoring Results and Graphical Presentation

Appendix I. Monthly Waste Flow Table

Table I.1: Monthly Summary Waste Flow Table for 2010

	Actual Quantities of Inert C&D Materials Generated Monthly (in ‘000 m³)										Actual Quantities of C&D Wastes Generated Monthly
Month	Total Quantity Generated		Broken Concrete		Reused in the Contract		Reused in other Projects		Disposed of at Public Fill		Metals (‘000 kg)		Paper/ Cardboard (‘000 kg)		Plastics (‘000 kg)		Chemical waste (‘000 kg)		Others (e.g. refuse) (‘000 m³)
	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.
Jan	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Feb	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mar	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0
Apr	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0
May	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0.0195
Jun	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0
Sub-total	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0	-	0.0195
Jul	-	0.0195	-	0	-	0	-	0	-	0.0195	-	0	-	0	-	0	-	0	-	0.013
Aug	-	0.1625	-	0	-	0	-	0	-	0.1625	-	0	-	0	-	0	-	0	-	0.013
Sep	-	0.2405	-	0	-	0	-	0	-	0.2405	-	0	-	0	-	0	-	0	-	0
Oct	-	0.0780	-	0	-	0	-	0	-	0.0780	-	0	-	0	-	0	-	0	-	0.0007
Nov	-	0.1755	-	0	-	0	-	0	-	0.1755	-	0	-	0	-	0	-	0	-	0
Dec	-	0.2925	-	0	-	0	-	0	-	0.2925	-	0	-	0	-	0	-	0	-	0.0065
Total	-	0.9685	-	0	-	0	-	0	-	0.9685	-	0	-	0	-	0	-	0	-	0.0527

Table I.2: Monthly Summary Waste Flow Table for 2011

	Actual Quantities of Inert C&D Materials Generated Monthly (in ‘000 m³)										Actual Quantities of C&D Wastes Generated Monthly
Month	Total Quantity Generated		Broken Concrete		Reused in the Contract		Reused in other Projects		Disposed of at Public Fill		Metals (‘000 kg)		Paper/ Cardboard (‘000 kg)		Plastics (‘000 kg)		Chemical waste (‘000 kg)		Others (e.g. refuse) (‘000 m³)
	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.	Est.	Act.
Jan	-	0.1365	-	0	-	0	-	0	-	0.1365	-	0	-	0	-	0	-	0	-	0
Feb
Mar
Apr
May
Jun
Sub-total	-	0.1365	-	0	-	0	-	0	-	0.1365	-	0	-	0	-	0	-	0	-	0
Jul
Aug
Sep
Oct
Nov
Dec
Total

Appendix J. Complaint Log

Table J.1: Complaint Log for the Reporting Month (January 2011)

Log Ref.	Location	Complainant / Date of Contact	Details of Complaint	Investigation / Mitigation Action	File Closed
N/A	N/A	N/A	N/A	N/A	N/A

Note: No environmental complaint was received in January 2011.

Appendix K. Weather Information from Hong Kong Observatory

This Appendix presents wind data obtained from the nearest Hong Kong Observatory monitoring station, at Ta Kwu Ling, during noise impact monitoring days.