1                             Introduction

1.1                       Background

1.1.1                 Hong Kong as a whole sees a general shortage of sports grounds and indoor sports centres. In particular, a shortfall of sports centres and standard sports grounds in East Kowloon is anticipated based on population projection. In 2006, the Hong Kong SAR Government proposed the development of a multi-purpose sports complex at Kai Tak with the strong support from sports communities and local communities including district councils. It is anticipated that the Kai Tak Multi-purpose Sports Complex (MPSC or the Project) will provide high-quality sports facilities that will help to alleviate Hong Kong’s shortage of public sports facilities and will also provide new venues suitable for hosting major local and international sports events.

1.1.2                 A Comprehensive Planning and Engineering Review of South East Kowloon Development (SEKD) was commissioned in 2004 and a Preliminary Outline Development Plan (PODP) was first prepared as part of Kai Tak Planning Review (KTPR) by the Planning Department. In 2007, Civil Engineering and Development Department (CEDD) of HKSAR commissioned the “Kai Tak Development Engineering Study” including a Schedule 3 Environmental Impact Assessment (EIA) study, to confirm the feasibility of the PODP. The EIA was prepared as part of the engineering study and approved under the Environmental Impact Assessment Ordinance (EIAO) on 4 March 2009. The Project is one of the key components in the PODP.

1.2                       The Project

1.2.1                 The Project site covers a land area of about 28.2 hectares situated in the North Apron Area of the former Kai Tak International Airport. It is bounded by the Central Kowloon Route to the south and dissected by Road D2 (Shing Kai Road) in the middle. The scope of the Project includes a multi-purpose complex comprising a 50,000 seat Main Stadium, a 7,000-seat Public Sports Ground, an Indoor Sports Centre, and other ancillary/supporting facilities such as car parking spaces, commercial area for retail, food and beverage outlets, office spaces for sports-related organizations and a hotel. The Main stadium shall be multi-functional to meet the specific requirements of different events, promote high utilisation and deliver a good spectator experience. While priority will be given to major sports events, non-sporting events such as concerts, exhibitions, carnivals, etc. may also be held in the main stadium. An indicative master layout plan of the Project is shown in Figure 1-1.

1.2.2                 The construction works of the Project are scheduled to commence in 2017 for completion in 2020/2021. The tentative construction programme is shown in Appendix E.

1.3                       Designated Projects

1.3.1                 The potential environmental impacts of the Project have been broadly addressed in the Schedule 3 EIA report for the Kai Tak Development (KTD). The approved EIA report for the KTD recommended that a further EIA study be required under the EIAO to address the environmental impacts of the Project in detail given that the Project has been identified as a designated project under the following sub-items of Part I, Schedule 2 of the EIAO (Cap. 499):

l   The Main Stadium of the Project under item O.6 “An open air concert venue with a capacity to accommodate more than 10 000 persons”

l   The Main Stadium of the Project under item O.7 “An outdoor sporting facility with a capacity to accommodate more than 10 000 persons”

1.3.2                 A project profile (No. PP-509/2014) was submitted to the Environmental Protection Department (EPD) on 3 June 2014 and a study brief (No. ESB- 274/2014) specifying the scope of the required environmental impact assessment was issued by EPD on 16 July 2014.

1.3.3                 Subsequently, an EIA study was carried out in July 2014. The purpose of the EIA study was to provide information on the nature and extent of environmental impacts arising from the construction and operation of the Project and associated works that will take place concurrently.

1.4                       Purpose of this Environmental Monitoring and Audit (EM&A) Manual

1.4.1                 The purpose of this EM&A Manual (hereafter called the “Manual”) is to guide the establishment of an EM&A programme to assure compliance with the standards and predictions in the EIA study involving the construction and operation of Kai Tak Multi-Purpose Sports Complex. The environmental performance will be routinely monitored and audited for evaluating the effectiveness of the recommended mitigation measures and to investigate any further need for additional mitigation measures or remedial action.

1.4.2                 This EM&A Manual is prepared based on the findings and recommendations in the EIA report and with reference to the requirements stipulated in Annex 21 of the Technical Memorandum on Environmental Impact Assessment Process (EIAO-TM):

(i)            To propose EM&A programme to monitor the environmental performance of the Project;

(ii)          To check the implementation status of mitigation measures to minimize construction and operational impacts on the environment;

(iii)        To identify the need for additional mitigation measures;

(iv)        To advise the responsibilities of different parties involved in the Project and communication flow among them;

(v)          To detail monitoring requirements (locations, environmental parameters, frequency, duration) before and during the construction period and in the operational period;

(vi)        To propose monitoring equipment required and quality assurance;

(vii)      To determine Action and Limit Levels of each environmental parameter based on the legislative criteria and standards for compliance checking;

(viii)    To set up Event and Action Plan for remedial actions if exceedance of compliance is identified;

(ix)        To devise procedures for handling complaint/consultation; and

(x)          To detail reporting requirements

1.5                       Structure of EM&A Manual

1.5.1                 This EM&A Manual comprises the following Chapters:

l   Ch. 1      Introduction

l   Ch. 2      Project Organization

l   Ch. 3      Air Quality Impact

l   Ch. 4      Hazard to Life

l   Ch. 5      Noise Impact

l   Ch. 6      Water Quality Impact

l   Ch. 7      Sewerage and Sewage Treatment Implications

l   Ch. 8      Waste Management Implications

l   Ch. 9      Land Contamination

l   Ch. 10    Terrestrial Ecological Impact

l   Ch. 11    Landscape and Visual Impact

l   Ch. 12    Cultural Heritage Impact

l   Ch. 13   Environmental Audit

l   Ch. 14    Reporting

l   Ch. 15    Conclusion

 

2                             project Organization

2.1                       Introduction

2.1.1                 The implementation of the recommended EM&A programme requires participation of relevant parties in a correlative and collaborative manner. The project organization and lines of communication with respect to the recommended EM&A works are shown in Figure 2-1. The roles and responsibilities of the key EM&A programme participants involved are described in the following sections.

2.2                       The Contractor

2.2.1                 The Contractor implies all construction contractors and sub-contractors working on the Project site. He should:

(i)            Engage the Environmental Team (ET) to carry out EM&A works

(ii)          Notify the ET the construction activities that may have environmental concern

(iii)        Participate in the site inspection carried out by the ET and to rectify any environmental deficiency identified

(iv)        Propose and implement necessary measures to mitigate any exceedance in Action/Limit Levels recorded in accordance to the Event and Action Plans

(v)          Investigate complaints according to the agreed procedures

2.3                       Architect’s Representatives (AR)

2.3.1                 The AR shall be responsible to oversee the construction work of all contractors to ensure that the contract specifications are met. He should:

(i)            Supervise the Contractor’s activities to ensure that they comply with the requirements in the approved EIA report, EM&A Manual, Environmental Permit (EP) and the contract specifications

(ii)          Employ the Independent Environmental Checker (IEC) to audit and check the EM&A works carried out by the ET

(iii)        Follow the agreed procedures in the Event and Action Plan in case of any exceedance and instruct the Contractor to carry out remedial actions

(iv)        Participate in joint site inspections and audits undertaken by the ET

(v)          Investigate complaints according to the agreed procedures and instruct the Contractor to follow up

(vi)        Assist the ET in implementation of EM&A programme when required

2.4                       Independent Environmental Checker (IEC)

2.4.1                 The IEC shall be appointed by the AR to audit and verify the EM&A works carried out by the ET and to oversee the environmental performance of the project site. He shall not have any association with the Contractor or ET. The IEC should possess at least 7 years of experience in EM&A. The IEC should:

(i)            Review and verify EM&A Reports and submissions for EP prepared by the ET and advise for improvement

(ii)          Audit and confirm the validity and accuracy of monitoring activities and results. He may carry out random sample check and audit on monitoring data and sampling procedures, etc.

(iii)        Audit the EIA recommendations and requirements against the status of implementation of environmental protection measures on site

(iv)        Review the implementation status and effectiveness of mitigation measures onsite and ensure that they are carried out properly

(v)          Conduct monthly and ad-hoc site inspections

(vi)        Investigate complaints according to the agreed procedures

(vii)      Review the proposal of mitigation measures by the Contractor in an event of exceedance according to the Event and Action Plan

2.5                       Environmental Team (ET)

2.5.1                 The ET shall be led and managed by the ET Leader. The ET Leader shall be an independent party from the Contractor and have relevant professional qualifications, or have sufficient relevant EM&A experience subject to the approval of the Architect’s Representative (AR). The ET Leader shall possess at least 7 years of experience in EM&A and/or environmental management. The ET should carry out the EM&A programme and to check the Contractor’s compliance with the environmental protection requirements in the EIA, EM&A Manual and EP. The ET should:

(i)            Set up monitoring stations to carry out monitoring, statistical analysis and compliance checking against legislative standard and guidelines

(ii)          Repeat field measurement in case of exceedance and propose mitigation measures for improvement

(iii)        Conduct weekly and ad-hoc site inspections to audit the Contractor’s site practice on pollution prevention and the effectiveness and adequacy of mitigation measures

(iv)        Advise the Contractor rectification work required when environmental deficiency is identified

(v)          Prepare monthly, quarterly and final EM&A reports to summarise environmental performance and to anticipate future key issues

(vi)        Review and comment on work schedule and methodology as necessary

(vii)      Support the Contractor for submissions required under the EP

(viii)    Investigate complaints and propose corrective measures according to the agreed procedures

(ix)        Liaise with the IEC on environmental performance matters and timely submission of all EM&A proforma for IEC’s approval

2.5.2                 The ET Leader shall keep a contemporaneous logbook for recording each and every instance or circumstance or change of circumstances that may affect the compliance with the recommendations of the EIA report. This logbook shall be kept readily available for inspection by the IEC, and the Director of Environmental Protection (DEP) or his authorised officers.

 

3                             air quality IMPACT

3.1                       Introduction

3.1.1                 The EIA report assessed the air quality impact which would be induced by the Project. With proper implementation of mitigation measures, no adverse impact on air quality during construction phase is anticipated. Monitoring on air quality shall cover the construction phase. Operational phase air quality is mainly affected by the background pollutant level and offsite air pollutant sources. Monitoring during operational phase is not required. This chapter outlines the proposed mitigation measures, and details the environmental monitoring and audit programme.

3.2                       Monitoring Parameters

3.2.1                 Levels of 1-hour Total Suspended Particulates (TSP) shall be measured by the ET in order to monitor the construction air quality impact.

3.3                       Monitoring Equipment

3.3.1                 1-hour TSP levels will be measured in accordance to the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.

3.3.2                 Other than using high volume sampler, 1-hour TSP levels can be measured alternatively by direct reading from portable dust meters upon approval from AR. The meters should be capable of producing comparable results as that by the high volume sampling method, to indicate short event impacts.

3.4                       Monitoring Requirements

High Volume Sampler

3.4.1                 The ET shall provide sufficient number of high volume samplers (HVSs) for measurement at the various ASRs during each monitoring event. The HVSs shall comply with the following specifications for carrying out the 1-hour TSP monitoring:

(a)      0.6 - 1.7 m3 per minute adjustable flow range;

(b)     equipped with a timing / control device with +/- 5 minutes accuracy for 24 hours operation;

(c)      installed with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;

(d)     capable of providing a minimum exposed area of 406 cm2;

(e)      flow control accuracy: +/- 2.5% deviation over 24-hour sampling period;

(f)      equipped with a shelter to protect the filter and sampler;

(g)     incorporated with an electronic mass flow rate controller or other equivalent devices;

(h)     equipped with a flow recorder for continuous monitoring;

(i)       provided with a peaked roof inlet;

(j)       incorporated with a manometer;

(k)     able to hold and seal the filter paper to the sampler housing at horizontal position;

(l)       equipped with easily changeable filter; and

(m)   capable of operating continuously for a 24-hour period.

3.4.2                 Clearly labelled calibration kit and filter papers shall also be provided. The HVSs should be equipped with an electronic mass flow controller and be calibrated against a traceable standard at regular intervals.

3.4.3                 Calibration should first be conducted after installing the HVSs and repeated on a bi-monthly basis. The transfer standard shall be traceable to the internationally recognised primary standard and be calibrated annually. The concern parties such as IEC shall properly document the calibration data for future reference. All the data should be converted into standard temperature and pressure condition.

3.4.4                 The flow-rate of the sampler before and after the sampling exercise with the filter in position shall be verified to be constant and be recorded in the data sheet in Appendix B.

Direct Reading Meter

3.4.5                 If the ET prefers to adopt direct reading method for 1-hour TSP, he should provide adequate support to the IEC for verifying the capacity of the meter as with the HVSs in obtaining comparable measurements. The meter shall be calibrated at regular intervals in accordance to the specification in the manufacturer’s manual. The calibration certificates shall be available to the IEC for checking upon request. The validity and accuracy of the meter shall also be tested against the results by the HVS periodically.

Collection of Wind Data

3.4.6                 For recording wind speed and wind direction, the ET shall install wind data monitoring equipment near the dust monitoring locations. The installation location shall be proposed by the ET and agreed with the IEC. The installation and operation of the equipment shall meet the following criteria:

(a)      The wind sensors should be installed 10 m above ground so that they are clear of obstructions or turbulence caused by buildings.

(b)     The wind data should be captured by a data logger. The data shall be downloaded for analysis at least once a month.

(c)      The wind data monitoring equipment should be re-calibrated at least once every six months.

(d)     Wind direction should be divided into 16 sectors of 22.5 degrees each.

3.4.7                 If agreed by the AR and the IEC, the ET may obtain wind data using alternative method.

Laboratory Testing

3.4.8                 Filter paper to be placed in the HVSs should have a size of 8" x 10" and be labelled before sampling. It should be clean without pinholes, and be conditioned in a humidity-controlled chamber for over 24-hours and be pre-weighed before use for the sampling.

3.4.9                 After air is passed through the HVSs, the filter paper inside will be loaded with dust. It shall be collected inside a clean and tightly sealed plastic bag for transporting to a laboratory. It shall be reconditioned in the humidity-controlled chamber followed by accurate weighing by an electronic balance with accuracy up to 0.1 mg. The balance shall be regularly calibrated against a traceable standard.

3.4.10             All samples should be kept in good condition for 6 months before disposal.

3.4.11             The testing laboratory should be HOKLAS accredited. It should be clean and should maintain a stable temperature and humidity. Measuring and conditioning instruments should be readily available for handling the dust samples. It should carry out result analysis, equipment calibration and maintenance.

3.4.12             If a site or non-HOKLAS laboratory will be responsible for conducting the testing, the laboratory equipment shall be approved by the AR and the measurement procedures shall be witnessed by the IEC. Any measurement performed by the laboratory shall be demonstrated to the satisfaction of the AR and the IEC. The IEC shall regularly audit the measurement performed by the laboratory to ensure the accuracy of measurement results. The ET Leader shall provide the AR with one copy of the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B for his reference.

3.5                       Monitoring Location

3.5.1                 Five representative Air Monitoring Stations (AMSs) are proposed. Their details and locations are shown in Table 3.1 and Figure 3-1 respectively.

Table 3.1     Proposed Air Monitoring Stations

Monitoring Stations

Location

Existing Air Sensitive Receivers

AMS1

The Hong Kong Society For The Blind Workshop And Hostel, 160 To Kwa Wan Road

AMS2

Sky Tower, Tower 7, 38 Sung Wong Toi Road

Planned Air Sensitive Receivers

AMS3

Kai Tak Area 2B Site 4 (2B4) (residential use)

AMS4

Kai Tak Area 1K Site 3 (1K3) (residential use)

AMS5

Kai Tak Area 1L Site 3 (1L3) (residential use)

3.5.2                 As AMS3 to AMS5 are planned air sensitive receivers, monitoring works should be conducted when these residential buildings in Kai Tak Area Sites 2B4, 1K3 and 1L3 have been completed and being occupied.

3.5.3                 Nevertheless, since Kai Tak has many planned and ongoing construction activities, the status and locations of dust sensitive receivers may change after issuing this manual. The ET Leader shall propose alternative monitoring locations taking into account the following considerations and seek approval from the AR and the IEC:

(a)      locate at the site boundary or such locations close to the major dust emission source;

(b)     locate close to the sensitive receivers; and

(c)      take into account the prevailing meteorological conditions.

3.6                       Placement of Equipment

3.6.1                 The ET shall agree with the AR in consultation with the IEC on the position of the HVS for the installation of the monitoring equipment. When positioning the samplers, the following points shall be noted:

(a)      a horizontal platform with appropriate support to secure the samplers against gusty wind should be provided;

(b)     no two samplers should be placed less than 2 meters apart;

(c)      the distance between the sampler and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the sampler;

(d)     a minimum of 2 meters of separation from walls, parapets and penthouses is required for rooftop samplers;

(e)      a minimum of 2 meters separation from any supporting structure, measured horizontally is required;

(f)      no furnace or incinerator flue is nearby;

(g)     airflow around the sampler is unrestricted;

(h)     the sampler is more than 20 meters from the dripline;

(i)       any wire fence and gate, to protect the sampler, should not cause any obstruction during monitoring;

(j)       permission must be obtained to set up the samplers and to obtain access to the monitoring stations; and

(k)     a secured supply of electricity is needed to operate the samplers.

3.7                       Baseline Monitoring

3.7.1                 Baseline monitoring shall be conducted to determine the existing air quality in terms of 1-hour levels before commencement of construction work. A consecutive measurement for 14 days should be carried out at all monitoring stations. At least 3 sets of 1-hour TSP data shall also be collected every day during this period, at the predicted time in which greatest impact is expected.

3.7.2                 During the baseline monitoring, there should be no major construction or dust generating activities near the monitoring stations. The ET shall propose a monitoring schedule to the IEC so that he can conduct onsite audit to ensure the accuracy of the measurement where necessary.

3.7.3                 Alternative baseline AMS that can give representative baseline result may be proposed for AR and IEC’s approval with justifications.

3.7.4                 In exceptional cases, when insufficient baseline monitoring data or questionable results are obtained, the ET shall liaise with the IEC and AR to agree on an appropriate set of data to be used as a baseline reference and submit to EPD for approval.

3.7.5                 The baseline monitoring data shall be reviewed once every three months. When there is seasonal change to ambient conditions, the baseline condition may need to be updated. Repeated measurement shall be conducted during which no dust generating activity is being carried out near the AMS. If a change in ambient condition is recorded, the baseline levels and therefore air quality criteria should be revised accordingly and agreed with the IEC and EPD.

3.8                       Impact Monitoring

3.8.1                 Impact monitoring shall be carried out throughout the construction period at all AMSs. 1-hour TSP shall be carried out at least 3 times in every 6 days when the highest dust impact takes place. Similar to baseline monitoring, the ET shall submit a monitoring schedule to the IEC for onsite audit of the accuracy of the monitoring result where necessary.

3.8.2                 If exceedance of air quality criteria is recorded, more frequent measurement shall be carried out within the specified timeframe in accordance with the Action Plan. The additional monitoring shall be continued until the excessive dust emission or the deterioration in air quality is rectified, and upon agreement with the IEC. A sample of the field record sheet for air quality monitoring can be found at Appendix B.

3.9                       Air Quality Performance Limit

3.9.1                 The following table shows the action and limit levels for 1-hour TSP.

Table 3.2                Action and Limit Levels for Air Quality

Parameters

Action

Limit

1-hour TSP Level in µg m-3

For baseline level £ 384 µg m-3, Action level = (baseline level * 1.3 + Limit level)/2;

For baseline level > 384 µg m-3, Action level = Limit level

500µg/m3

 

3.10                   Event and Action Plan

3.10.1             Should non-compliance of the air quality criteria occur, actions in accordance with the Action Plan in Appendix C shall be carried out.

3.11                   Mitigation Measures

3.11.1             The EIA proposed a number of construction phase mitigation measures in Section 3.7 and operational phase mitigation measures in Section 3.8. Dust control measures stipulated in the Air Pollution Control (Construction Dust) Regulation and good site practice shall be adopted. Examples of dust suppression measures for controlling the dust nuisance throughout the construction phase are listed below:

 

Construction Phase

(a)      Dusty materials (e.g. debris) should be wetted by misting / water-spraying before any loading, unloading, transfer or transport operation;

(b)     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;

(c)      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, backfilled or reinstated where practicable within 24 hours of the excavation or unloading;

(d)     Haulage and delivery vehicles should be confined to designated roads;

(e)      Provide vehicle washing (e.g. wheel washing bay & high pressure water jet where practicable) at every vehicle exit point for cleaning vehicle body and wheels;

(f)      The vehicle washing area and the road between washing area and site exit should be paved with concrete, bituminous or other hardcores;

(g)     Dusty materials on every vehicle's body and wheels should be removed in washing area before leaving the site;

(h)     Regular maintenance of all plant equipment;

(i)       Throttle down or switch off unused machines or machine in intermittent use;

(j)       If the site is adjacent to area where accessible to the public (e.g. road and service lane etc.), hoarding of not less than 2.4 m high from ground level should be erected along the adjoining section, except for a site entrance or exit. The hoarding should be well maintained throughout the construction period;

(k)     Where a scaffolding is erected around the perimeter of a building under construction, effective dust screens, sheeting or netting should be provided to enclose the scaffolding from the ground floor level of the building, or a canopy should be provided from the first floor level up to the highest level of the scaffolding; and

(l)       Exposed earth should be properly treated by compaction, turfing, hydroseeding, vegetation planting or sealing with latex, vinyl, bitumen, shotcrete or other suitable surface stabiliser within six months after the last construction activity on the construction site or part of the construction site where the exposed earth lies

Operational Phase

(a)      Fresh air intake point of the hotel in MPSC should be located at least 5m above ground (outside the annual NO2 exceedance zone).

(b)     The entry of heavy goods vehicles should avoid peak hours, weekdays from 7 am to 10 am and from 4 pm to 7 pm, except for major events (i.e. more than 20,000 persons);

(c)      Provision of electrical vehicle (EV) charging facilities in at least one-third of the car parking spaces for private cars;

(d)     Provision of EV charging enabling facilities in all car parking spaces provided for private cars.;

(e)      Giving priority to EV to use the car parking spaces as far as practicable;

(f)      If the operator provides transport services for the staff and/or guests, electric saloon cars, coaches, etc. should be used under normal operation; and,

(g)     Reduction of car parking space.

3.11.2             Mitigation measures are detailed in the Environmental Mitigation Implementation Schedule (EMIS) (see Appendix A). Implementation status and the effectiveness of the proposed construction phase mitigation measures shall be audited through weekly site inspection.

 

4                             hazard to life

4.1                       Introduction

4.1.1                 Based on the latest available information, no new Potentially Hazardous Installation is proposed in KTD area and all existing/planned hazardous sources within or in vicinity of KTD have been considered in the approved EIA Report for the KTD. The project site falls outside all the Consultation Zones / study areas of the identified hazardous sources. Hence, no adverse potential hazard to life impact on the Project is anticipated, and no environmental monitoring or audit is proposed.

 

5                             noise IMPACT

5.1                       Introduction

5.1.1                 The EIA report assessed the noise impact which would be induced by the Project. With proper implementation of mitigation measures, no adverse noise impact is anticipated during both construction and operational phases. Monitoring on noise levels shall be carried out throughout the construction phase, while monitoring of music, singing and instrument performing activities (hereafter music events) during operational phase is required. This chapter outlines the proposed mitigation measures, and details the EM&A programme for noise.

5.2                       Monitoring Parameters

5.2.1                 Construction noise level shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq). Leq (30min) for the time period between 0700 and 1900 hours on normal weekdays. For all other time periods, Leq (5min) shall be employed for comparison with the Noise Control Ordinance (NCO) criteria.

5.2.2                 For music events held during daytime or evening time periods (i.e. 7 a.m. to 11 p.m.), noise level from the events shall be measured in terms of A-weighted Leq (5 min) and Leq (15 min), rounded up or down to the nearest integer. Background noise level shall be measured in terms of A-weighted Leq (5 min).

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

5.3                       Monitoring Equipment

5.3.1                 Sound level meters shall be employed to measure construction noise levels. It should comply with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications in accordance with the Technical Memorandum (TM) issued under the NCO and the Noise Control Guidelines for Music, Singing and Instrument Performing Activities.

5.3.2                 An acoustic calibrator shall be used to validate the accuracy of the sound level meter before and after each noise measurement. The calibrator can generate a known sound pressure level at a known frequency. The noise recorded will only be accepted if the calibration levels before and after the noise measurement agree to within 1.0 dB.

5.3.3                 Sufficient number of the above equipment shall be provided by the ET, who should also be responsible for installation, operation, maintenance and dismantlement. All equipment and instrumentation shall be clearly labelled.

5.4                       Monitoring Requirement

5.4.1                 Noise measurement shall normally be carried out at a point 1 m from the exterior of the sensitive receiver building façade and 1.2 m above the ground. If the normal monitoring position cannot be accessed, an alternative position may be chosen, and a correction to the measurements shall be made. For reference, a correction of +3 dB(A) shall be made to the free field measurements. The ET shall agree with the IEC on the monitoring position and the corrections adopted. The agreed position shall be chosen in subsequent baseline and impact monitoring.

5.4.2                 Noise measurements should be made in accordance with standard acoustical principles and practices in relation to weather conditions.

5.5                       Monitoring Location

Construction phase

5.5.1                 Seven representative Noise Monitoring Stations (NMSs) are proposed. Their details and locations are shown in Table 5.1 and Figure 5-1 respectively.

Table 5.1        Proposed Construction Noise Monitoring Stations

Monitoring Stations

Location

Existing Noise Sensitive Receiver

NMS1*

The Hong Kong Society for The Blind Workshop and Hostel, 19 Mok Cheong Street

NMS2*

Sky Towers, 38 Sung Wong Toi Road

Planned Noise Sensitive Receiver

NMS1A*

Sung Wong Toi Road Public Housing Site

NMS2A*

Sung Wong Toi Road CDA Site (mixed use)

NMS3

Kai Tak Area 2B Site 4 (2B4) (residential use)

NMS4

Kai Tak Area 1K Site 3 (1K3) (residential use)

NMS5

Kai Tak Area 1L Site 3 (1L3) (residential use)

* Since NMS1A & NMS2A are planned (i.e. not existing) noise sensitive receivers, noise monitoring should be carried out at NMS1 & NMS2 respectively before the population intake of the planned developments. Once the planned developments are completed and occupied, NMS1A shall replace NMS1, while NMS2A shall replace NMS2.

5.5.2                 As NMS3 to NMS5 are planned noise sensitive receivers, monitoring works should be carried out when these residential buildings in Kai Tak Area 2B Site 4, 1K Site 3 and 1L Site 3 have been completed and being occupied.

Operation phase

5.5.3                 Three representative NMSs are proposed for measurement for music events held during daytime or evening time periods at the Main Stadium. Their details and locations are shown in Table 5.2 and Figure 5-2 respectively.

Table 5.2        Proposed Music Event Noise Monitoring Stations

Monitoring Stations

Location

Planned Noise Sensitive Receiver

NMS1A

Sung Wong Toi Road Public Housing Site

NMS3

Kai Tak Area 2B Site 4 (2B4) (residential use)

NMS5

Kai Tak Area 1L Site 3 (1L3) (residential use)

5.5.4                 Since Kai Tak has many planned and ongoing construction activities, the status and locations of noise sensitive receivers (NSRs) may change after this manual is issued. The ET Leader shall propose alternative monitoring locations taking into account the following considerations and seek approval from the AR and the IEC:

(a)      locate close to the major site activities which are likely to have noise impacts;

(b)     locate close to the most affected existing NSRs; and

(c)      take into account the possibility of minimizing disturbance to occupants at the NSRs during monitoring.

5.6                       Baseline Monitoring

5.6.1                 Baseline noise measurement shall be conducted to determine the background noise level before commencement of work. Daily measurement of A-weighted levels Leq, L10 and L90 shall be carried out for at least two weeks. The sample period shall be 30 minutes between 0700 and 1900.

5.6.2                 During the baseline monitoring, there should be no major construction or noise generating activities near the monitoring stations. The ET shall propose a monitoring schedule to the IEC so that he can conduct onsite audit to ensure the accuracy of the measurement where necessary.

5.6.3                 Alternative baseline NMS that can give representative baseline result may be proposed for AR and IEC’s approval with justifications.

5.6.4                 In exceptional cases, when insufficient baseline monitoring data or questionable results are obtained, the ET shall liaise with the IEC and AR to agree on an appropriate set of data to be used as a baseline reference.

5.6.5                 No baseline noise monitoring is required for operation phase.

5.7                       Impact Monitoring

Construction phase

5.7.1                 For daytime construction work on normal weekdays (0700-1900 Monday to Saturday), one set of 30-min measurement shall be carried out at each NMS every week based on the measurement procedures under the Noise Control Ordinance-TM. Similar to baseline monitoring, the ET shall submit a monitoring schedule to the IEC beforehand.

 

5.7.2                 If noise exceedance is recorded, additional noise monitoring shall be carried out in accordance with the Event and Action Plan. The monitoring shall be considered completed if the exceedance is being rectified or proved to be from source other than from the Project’s construction works. Similar to baseline monitoring, the ET shall submit a monitoring schedule to the IEC for onsite audit of the accuracy of the monitoring result where necessary.

5.7.3                 A sample of the noise monitoring data sheet can be found in Appendix B.

Operation phase

5.7.4                 No noise monitoring is required for sports events. For music events held in the daytime or evening time period, the event organizer shall appoint an appropriate person to measure the noise level at each NMS for every 5 minutes and every 15 minutes period throughout the event. The prevailing background noise level should be measured before and after the event. The background noise level measured before the event will be used to determine the Action Level for the monitoring of that event. A sample of the noise monitoring form can be found in Appendix B.

5.7.5                 If noise exceedance is recorded at any NMS, the appropriate person should provide immediate feedback to event organiser. The event organiser shall take subsequent agreed action(s) in accordance with the Event and Action Plan.

5.8                       Noise Performance Limit

5.8.1                 The EIAO-TM sets the statutory limit for noise from construction works. The Noise Control Guideline for Music, Singing and Instrument Performing Activities sets the requirements for noise from music events.

Table 5.3        Action and Limit Levels for Construction Noise

Time Period

Action Level

Limit Level

0700-1900 hours on normal weekdays

When one documented complaint is received

75dB(A)

Table 5.4        Trigger and Action Levels for Noise from Music Events

Time Period

Trigger Level

Action Level

7 a.m. to 11 p.m. during music events (including rehearsal and main event)

Measured in Leq(15min), 7 dB above the background noise level at the NMS (as determined in Section 5.7)

Measured in Leq(5min), 10 dB above the background noise level at the NMS
(as determined in Section 5.7)

5.9                       Event and Action Plan

5.9.1                 Should non-compliance of the noise criteria occur, actions in accordance with the Event and Action Plan in Appendix C shall be carried out.

5.10                   Mitigation Measures

5.10.1             The EIA proposed a number of mitigation measures. Some examples are provided below.

Construction Phase

(a)      Adopt good site practice, such as throttle down or switch off equipment unused or intermittently used between works.

(b)     Regular maintenance of equipment to prevent noise emission due to impair.

(c)      Position mobile noisy equipment in location and point the noise sources to directions away from NSRs.

(d)     Use silencer or muffler for equipment.

(e)      Make good use structures for noise screening.

(f)      Use Quality Powered Mechanical Equipment (QPME) and quiet equipment which produce lower noise level.

(g)     Erect movable noise barriers of 3m height to shed large plant equipment (breaker, backhoe, mobile crane) or hand-held items (poker, wood saw, power rammer & compactor) near low-rise NSR, with special design where necessary, e.g. with noise absorbing material or bend top. Its length should be at least five times greater than its height. The minimum surface density of the movable noise barrier is 10 kg/m2. It is anticipated that a noise reduction of at least 5 dB can be achieved. Alternatively, acoustic shed/enclosure/silencer (generator, air compressor, concrete pump) or acoustic mat (piling) can be adopted. A noise reduction of 10 dB can be achieved.

(h)     Carry out regular site inspection to audit the implementation of mitigation measures.

(i)       Carry out noise monitoring and audit throughout the construction period.

Operational Phase

(a)      The structure of the Main Stadium shall be soundproofing and complete. The entrances of the stadium shall have special acoustic design (e.g. double acoustic door) such that the soundproofing performance of the structure is not compromised.

(b)     The retractable roof, which forms part of the design of the Main Stadium, shall comprise of four panels of equal size along the North-South direction. The roof will be closed under circumstances described in the Event and Action Plan.

(c)      There should be no air-gap between the base structure of the stadium and the fixed roof to avoid noise leakage. Rubber bearing or other devices with similar function shall be used to avoid the noise leakage between the fixed roof and the retractable roof.

(d)     A distributed public address system shall be adopted with the loudspeakers directed towards spectator stand.

(e)      A cover shall be built over the spectator stand of the Public Sports Ground. To increase the soundproofing performance of the cover, sound absorption panels shall be attached underneath the entire cover.

(f)      For noise from fixed plant of the ventilation system, partial enclosures and silencers can effectively reduce the noise level by 10-20dB.

(g)     Crowd management measures should be adopted for major events which finish at or later than 10:30 p.m. Crowd shall be managed and dispersed according to the pre-determined routes and towards the future Kai Tak Station and To Kwa Wan Station with minimal noise nuisance.

(h)     No organised events should be held concurrently in the Main Stadium and the Public Sports Ground.

5.10.2             Detailed mitigation measures are listed out in the EMIS in Appendix A. Implementation status and the effectiveness of these measures shall be audited through regular site inspection.

 

6                             water quality IMPACT

6.1                       Introduction

6.1.1                 Potential water pollution sources from construction and operation of MPSC have been identified including construction runoff, sewage, possible contamination due to oil and grease, use of fertilizers, pesticides and waste construction materials. Sewage generated during construction and operation will be disposed offsite and ultimately to Stonecutters Island Sewage Treatment Works. Other sources of polluted water will be intercepted for reuse, or disposal as chemical waste, or discharge into stormwater system. It can be concluded that there is no significant water quality impact to the sensitive receivers provide that the mitigation measures are properly implemented during construction and operation phases.

6.1.2                 As mitigation is required, site audit should be carried out to ensure the effectiveness of the mitigation measures.

6.2                       Construction Phase

6.2.1                 No off-site marine water quality impact would be expected from the Project and there would not be any marine-based works for the proposed works. Subject to the requirements in the effluent discharge licence to be issued under the Water Pollution Control Ordinance, regular water quality monitoring will be carried out at representative water discharge locations to ensure that relevant water quality standard can be met.

6.2.2                 Weekly site audit should be carried out to check the implementation status of the recommended water quality impact mitigation measures throughout construction period.

6.3                       Operation Phase

6.3.1                 The sewerage and storm water system should be designed and constructed to separate the sewage from the uncontaminated surface runoff. Rainwater harvesting system shall be adopted for the Project as far as practicable. Provisions shall be made to collect the contaminated surface runoff, such as the use of interception system and oil and petrol interceptors. As the Project area would be serviced by public sewers, no unacceptable water quality impact is anticipated. No operational phase monitoring or audit is proposed.

6.3.2                 In the case when natural turf is adopted in the Main Stadium or the Public Sports Ground, the operator shall prepare a Stormwater Re-use Management Plan stating the management of fertilizers and pesticides following the Pesticide Ordinance, LCSD and AFCD guidelines, safe and proper use and handling of fertilizers and pesticides, the reuse of surface runoff and monitoring and audit requirements, so that the application of fertilizer and pesticide are properly controlled and implemented in order to protect the Victoria Harbour Water Control Zone. The management plan shall include the management and operation of the intercepting system, stating that the storage tanks should be emptied prior to application of pesticides and fertilizers. It is necessary to include selection of sampling points at suitable locations in the management plan. The content of the Stormwater Re-use Management Plan is listed in Appendix F.

6.4                       Mitigation Measures

6.4.1                 The EIA proposed a number of construction phase mitigation measures. Some examples are provided below.

a)    Provide drainage channels in construction site

b)   Register as a chemical waste producer

c)    Provide sufficient number of chemical toilets if necessary and employ licensed contractor for regular clean-up and maintenance

d)   Cover slope and loose materials with tarpaulin before rainstorm and inspect the area afterwards

e)    Cover manhole to prevent silty runoff from entering the foul sewer

6.4.2                 Examples of operational phase mitigation measures are provided below:

a)    Separate sewerage and stormwater systems shall be properly maintained

b)   Oil interceptor shall be provided in car parking areas

c)    All manholes, sand traps and oil interceptors shall be cleaned and maintained regularly

d)   Rubbish and litter shall be cleaned regularly

e)    Use artificial turf. If natural turf is used and the application of fertilizers and pesticides is needed, the surface water from the turf that may contain residual fertilizers and pesticides shall be intercepted for reuse or treatment.

6.4.3                 Detailed mitigation measures are listed out in the EMIS in Appendix A. Implementation status and the effectiveness of these measures shall be audited through regular site inspection.

 

7                             sewerage and sewage treatment IMPLICATIONS

7.1                       Introduction

7.1.1                 Based on the estimated sewage flow of the Project, and the sewerage and sewage treatment capacity in Kai Tak Development area, no adverse sewerage impact caused by the Project is anticipated. No monitoring or audit is proposed.

 

8                             waste management IMPLICATIONS

8.1                       Introduction

8.1.1                 Wastes generated during the construction phase includes Construction and Demolition (C&D) materials from excavation, site formation and demolition, bentonite from piling works, chemical waste from equipment maintenance and general refuse from workers. It is the Contractor’s responsibility to ensure all the waste arising from the Project is handled, stored and disposed of in accordance with good waste management practices, relevant legislation and waste management guidelines. Provided that the waste is handled, transported and disposed of using approved methods and that the recommended good site practices are strictly followed, adverse environmental impact is not anticipated. General refuse and chemical waste will be generated from maintenance of equipment during operational phase.

8.2                       Mitigation Measures

8.2.1                 Examples of construction and operational phases mitigation measures are given as follows and details are listed out in the EMIS in Appendix A. Implementation status and the effectiveness of these measures shall be audited through regular site inspection.

a)    Adopt good site practice such as providing sufficient waste collection points and regular removal.

b)   Allocate area for proper storage and sorting of construction materials to prevent contamination.

c)    General refuse should be stored in enclosed bins or compaction units separate from C&D materials. A reputable waste collector should be employed by the contractor to remove general refuse from the site, separately from C&D materials.

d)   An enclosed and covered area is preferred to reduce the occurrence of ‘windblown’ light material.

e)    If chemical wastes were to be produced at the construction site, the Contractor would be required to register with the EPD as a Chemical Waste Producer, and to follow the guidelines stated in the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

f)    Minimize unnecessary waste generation by means of promotion materials, such as wider use of information technology and announcements.

8.3                       Environmental Audit and Monitoring

Construction phase

8.3.1                 The contractor should formulate waste management measures on waste minimization, storage, handling and disposal in a Waste Management Plan as part of Environmental Management Plan in accordance with the Environment, Transport and Works Bureau Technical Circular (Works) No. 19/2005. Weekly site audit should be conducted to check the implementation status of the recommended waste management measures throughout construction period.

Operation Phase

8.3.2                 During the operational phase of the Project, no adverse waste impact is expected if the mitigation measures are implemented properly. No monitoring or audit is required.

 

9                             land contamination

9.1                       Introduction

9.1.1                 The land contamination issues in the Project Site have been reviewed and assessed. Basically, the land contamination previously identified in the North Apron had been cleaned up and the site is considered clean for the intended use. Also, there will be no use with potential land contamination in the Project site. Environmental monitoring in relation to land remediation is not required.

 

10                         Terrestrial ECOLOGICAL IMPACT

10.1                   Introduction

10.1.1             The EIA report assessed the ecological impact which would be induced by the Project. With proper implementation of mitigation measures, no significant impact on ecology is anticipated. This chapter outlines the proposed mitigation measures and the environmental monitoring and audit programme.

10.2                   Mitigation Measures

10.2.1             Mitigation measures proposed for air quality, noise, water quality and landscape and visual impacts are also applicable to terrestrial ecology. In addition, the following mitigation measures should be implemented:

(a)      Erection of hoarding, fencing or provision of clear demarcation of work zones; and

(b)     Designation of areas for placement of equipment, building materials and wastes which should be away from drainage channels

10.2.2             With proper implementation of mitigation measures, un-acceptable terrestrial ecological residual impact is not expected. Detailed mitigation measures are listed out in the EMIS in Appendix A.

10.3                   Environmental Monitoring & Audit

10.3.1             Implementation status and the effectiveness of these measures shall be audited through regular site inspection during the construction phase. No specific environmental monitoring programme on terrestrial ecology for construction and operational phases are required.

 

11                         landscape and visual IMPACT

11.1                   Introduction

11.1.1             EM&A for landscape and visual and glare resources should be undertaken during the design, construction and operational phases of the Project. This is particularly important at detail design stage since many potential adverse landscape, visual and glare impacts need to be addressed prior to construction phase. The further design, implementation and maintenance of landscape and glare mitigation measures needs to be checked to ensure that they are fully realised and that potential conflicts between the proposed landscape measures and any other project works and operational requirements are resolved at the earliest possible date and without compromise to the intention of the mitigation measures. In addition, implementation of the recommended mitigation measures will be monitored through the site audit programme.

11.2                   Audit Requirements

11.2.1             The design, implementation and maintenance of mitigation measures should be checked regularly to ensure that they are fully realised and compliant with the intended aims of the measures. Any potential conflicts among the proposed mitigation measures, the project works, and operational requirements should also be identified and resolved early.

11.3                   Design Phase Audit

11.3.1             The landscape and glare measures proposed to mitigate the landscape, visual and glare impacts of the scheme should be embodied into the detailed landscape and engineering design specifications, drawings and contract documents including the protection of identified valuable landscape resources and the requirements for successful establishment and growth of new tree planting and shrubs, so as to ensure the effectiveness of the mitigation measures described above. A Registered Landscape Architect shall be appointed by the Project Proponent independently to check the landscape design to ensure that the proposed landscape measures and additional measures (if required), are fully incorporated for mitigating the landscape and visual impacts and for resolving any potential conflicts with civil engineering, geo-technical, structural, lighting, signage, drainage, underground utility and operational requirements prior to construction.

11.3.2             The design phase EM&A requirements for landscape and visual resources comprise the audit of detailed landscape works specifications to be prepared during the detailed design stage together with ensuring that the design is sensitive to landscape and visual impacts and that landscape resources are retained as far as practicable. Monitoring of design works against the recommendations of the landscape and visual impact assessments should be undertaken as and when the designs are produced to ensure that they fulfil the intentions of the mitigation measures.

11.3.3             Landscape proposals and details of architectural design, chromatic treatment and visual and landscape mitigation measures for all above ground structures, including stadia and ancillary buildings, should be submitted to Planning Department for review to demonstrate that they would be sensibly designed in a manner that responds to the existing urban context. The proposals should be submitted well in advance of the commencement of project construction.

11.3.4             The Registered Landscape Architect shall review the designs as and when they are prepared and liaise with the Project Engineer and Project Landscape Architect to ensure all measures have been incorporated in the design in a format that can be specified to the Contractor for implementation. In the event of a non-conformity, the Event and Action plan as detailed in Appendix C should be followed.

11.4                   Construction and Operational Phase Audit

11.4.1             A specialist landscape contractor should be employed by the Project Proponent prior to the undertaking of the main contract in order to facilitate the advance preparation and relocation of any trees in conflict with the proposed works. A lead in time of up to 18 months may be necessary in this advance works period in order to prepare trees suitably for transplantation should it be necessary.

11.4.2             A specialist landscape sub-contractor shall be employed by the works Contractor for the implementation of tree and soft landscape works and subsequent maintenance operations during a 12 month establishment period. The planting should commence during the construction contract and monitoring of the planting establishment should be undertaken for a 12 month period through the first operational year of the project.

11.4.3             All measures undertaken by the advance works specialist contractor as well as those by the works contractor and the specialist landscape sub-contractor during the construction phase and first year of the operational phase shall be audited by a Registered Landscape Architect, as a member of the Environmental Team (ET), on a regular basis to ensure compliance with the intended aims of the measures. Site inspections should be undertaken once every two weeks throughout the construction period and once every two months during the operational phase. The broad scope of the audit is detailed below but should also be undertaken with reference to the more specific checklist provided in Table 11.1. Operational phase auditing will be restricted to the 12 months of the establishment of the landscape works and thus only the items below concerning this period are relevant to the operational phase.

·           the extent of the agreed works areas should be regularly checked during the construction phase. Any trespass by the contractor outside the limit of the works, including any damage to existing trees shall be prohibited;

·           the progress of the engineering works should be regularly reviewed on site to identify the earliest practical opportunities for the landscape works to be undertaken;

·           the methods of protecting vegetation proposed by the contractor are acceptable and enforced;

·           all landscape works are carried out in accordance with the specifications;

·           the planting of new trees, shrubs, groundcover, climbers, ferns, grasses and other plants, together with the replanting of any transplanted trees are carried out properly and during the appropriate season;

·           all necessary horticultural operations and replacement planting are undertaken at the earliest possible opportunity throughout the Establishment Period, to ensure the healthy establishment and growth of both transplanted trees and all newly established plants.

Table 11.1     Construction/Operational Phase Audit Checklist

Area of Works

Items to be Monitored

Advance planting

monitoring of implementation and maintenance of planting, and against possible incursion, physical damage, fire, pollution, surface erosion, etc.

Clearance of existing vegetation

identification and demarcation of trees / vegetation to be cleared, checking of extent of works to minimise damage, monitoring of adjacent areas against possible incursion, physical damage, fire, pollution, surface erosion, etc.

Plant supply

monitoring of operations relating to the supply of specialist plant material (including the collecting, germination and growth of plants from seed) to ensure that plants will be available in time to be used within the construction works.

Soiling, planting, etc.

monitoring of implementation and maintenance of soiling and planting works and against possible incursion, physical damage, fire, pollution, surface erosion, etc.

Decorative treatment of site hoarding

implementation and maintenance, to ensure compliance with agreed designs and check that it matches the surrounding environment and does not cause visual intrusion.

Architectural treatment of structures, retaining walls, elevated road structures and other engineering works.

implementation and maintenance of mitigation measures, to ensure compliance with agreed designs.

Establishment Works

monitoring of implementation of maintenance operations during Establishment Period

11.4.4             In the event of non-compliance the responsibilities of the relevant parties is detailed in the Event and Action Plan provided in Appendix C.

11.5                   Mitigation and Enhancement Measures

11.5.1             The Landscape and Visual Impact Assessment of the EIA report recommended a series of mitigation and enhancement measures to ameliorate the landscape and visual impacts of the Project. The measures include the following:


Table 11.2     Recommended Construction Phase Landscape and Visual Mitigation/Enhancement Measures

ID
No.*

Type

Landscape / Visual Mitigation Measure

Funding / Implementation

Management / Maintenance

CM1

Visual /

Glare

Controlled Night-Time Lighting
(to mitigate adverse visual and glare impact)

Project
Proponent

Contractor

 

All security floodlights for construction sites shall be equipped with adjustable shield, frosted diffusers and reflective covers, and be carefully controlled to minimize light pollution and night-time glare to nearby receivers

 

CM2

 

Visual

Temporary Landscape Treatments
(to mitigate adverse visual impact)

Project
Proponent

Contractor

 

Including vertical greening, pot planting and application of green roofing to site offices, Hydroseeding of site formation areas and short term greening of site boundaries and land not immediately developed.

 

CM3

Visual

Decoration of Hoarding
(to mitigate adverse visual impact)

Project
Proponent

Contractor

 

Erection of screen hoardings should be designed appropriately to be compatible with the existing urban context, either brightly and imaginatively or with visually unobtrusive design and colours where more appropriate.

 

 

Table 11.3     Recommended Operational Phase Landscape and Visual Mitigation / Enhancement Measures

ID No.*

Type

Landscape / Visual Mitigation Measure

Funding /

Implementation

Management / Maintenance

OM1

Landscape Resources /

Visual

Greening of Walkways, Ramps and Decks
(to mitigate against potential deterioration of landscape resources and visual amenity)

Project
Proponent

Facility Management Departments

Greening shall be incorporated into at-grade areas and as raised planting areas on pedestrian walkways, ramps and decks.

OM2

Landscape Resources /

Visual

Green Roofs and Vertical Greening
(to mitigate against lost landscape resources and provide visual amenity)

Project
Proponent

Facility Management Departments

Green roofs and vertical greening should be provided to all built structures where feasible and opportunities should be maximised for incorporation on covered walkways and shade structures.

OM3

 

Landscape Resources

Compensatory Tree Planting
(to mitigate against lost landscape resources)

Project
Proponent

Facility Management Departments

A new parkland area is created in the project development to be used for the implementation of compensatory tree planting to offset the net loss of key landscape resources. It is recommended that 340 trees be planted in this regard and a compensatory tree planting proposal outlining the locations of tree compensation will be submitted separately in seeking relevant government department’s approval in accordance with DEVB TC No.7/2015.

OM4

Landscape Character /

Visual

Responsive Building Design
(to enhance landscape character and mitigate against visual inconformity)

Project
Proponent

Facility Management Departments

All above ground structures, including, stadia, hotel and ancillary buildings, shall be sensitively designed in a manner that responds to the existing and planned urban context in terms of scale, height and bulk (visual weight) as well as use of appropriate building materials and colour to create a cohesive visual mass. Subdued tones should be considered for the colour palette with non-reflective finishes to reduce glare effect.

OM5

Landscape Character /

Visual

Integration of Development Boundaries
(to enhance landscape character and mitigate against visual inconformity)

Project
Proponent

Facility Management Departments

The project boundaries shall be without fences or barriers, providing seamless physical and visual integration with the surrounding public spaces. Careful consistency of levels and materials shall create and indefinite development edge, integrating the development into the future Sung Wong Toi Park, the Station Square Open Space Corridor and the Metropark.

OM6

Landscape Character / Visual

Integration with Dining Cove and Waterfront Promenade
(to enhance landscape character and mitigate against visual inconformity)

Project
Proponent

Facility Management Departments

Careful design consideration of the interface of the raised stadium deck at 13mPD with that of the Waterfront Promenade at 5mPD shall be undertaken. Visual articulation and physical penetration of the development at promenade level shall be created by avoiding a continuous boundary wall. Furthermore integrated design of the adjacent proposed retail development shall ensure visual cohesion and an improved character setting.

OM7

Landscape Resources/ Landscape Character/ Visual

Light Penetration Under Deck
(to enable resource mitigation, enhance landscape character and mitigate against visual sterility)

Project
Proponent

Facility Management Departments

The landscape deck shall be cut back and light wells incorporated to maximise natural light penetration to at-grade covered areas under the deck, to allow for enhanced visual amenity, improved utilisation of ground space and significant incorporation of both horizontal and vertical greening at ground level.

OM8

Landscape Resources/
Landscape Character/
Visual

Urban Park

(to mitigate against lost landscape resources, provide visual amenity and enhance development landscape character)

Project
Proponent

Facility Management Departments

Incorporation of a new park within the development area shall facilitate the visual corridors outlined by the urban design framework to create an urban light well, protecting longer views and providing visual amenity to nearby receivers. The park shall maximise tree and shrub planting with emphasis on incorporating native species and integrate facilities primarily for the regular use of adjacent residential communities.

OM9

Visual

Bespoke Amenity Area Lighting
(to mitigate against visual impact from glare and enhance visual amenity)

Project
Proponent

Facility Management Departments

Development of a bespoke project amenity area lighting scheme shall be incorporated that minimises general area light pollution, provides thematic lighting, responds to user demand intensity and minimises pavement obstruction and visual clutter. The following shall be practically considered:

·         mounting height and direction of fixtures to avoid sensitive receivers;

·         reflectance so as to avoid glare effect;

·         incorporation of low level downlighting integrated onto building facades, walls and structures;

·         utilising area movement sensors;

·         programming of operation for minimised utilisation.

12                         cultural heritage IMPACT

12.1                   Introduction

12.1.1             No EM&A programme is required during the construction and operation phases of the proposed works as there are no adverse impacts on known sites of archaeological interest, potential areas of archaeological interest or built heritage.

 

13                         environmental audit

13.1                   Introduction

13.1.1             While a number of mitigation measures are proposed in the EIA report, regular site inspection is recommended for direct observation of the implementation progress to ensure they are properly implemented. Through a well-established action and reporting system, additional pollution control measures to identified environmental deficiency can be proposed and carried out at early stage. Site inspection is a useful way to enforce the environmental protection requirements onsite during construction.

13.2                   Site Inspection

13.2.1             The ET Leader should be responsible for the site environmental audit. He should design the environmental site inspection, deficiency and action reporting system and conduct regular and ad-hoc site inspection. He should prepare a proposal on the site inspection and reporting methodology to the Contractor for agreement and AR for approval.

13.2.2             Weekly site inspection shall be performed by the ET within the site where environmental protection measures will be implemented and also offsite where the construction activities may directly or indirectly be impacted upon. Bi-weekly site inspection shall also be performed for landscape and visual impacts. The following shall be noted during the inspection:

a)             environmental protection and pollution control mitigation measures proposed in the EIA, contract specification, EP and this Manual

b)             works progress and programme

c)             ongoing results of the EM&A programme

d)            individual works methodology proposals (including associated pollution control measures)

e)             relevant environmental protection and pollution control laws

f)              previous site inspection results

13.2.3             The Contractor shall inform the ET on any update of all relevant information on the construction contract necessary for him to carry out the site inspection. After each site inspection, the ET shall submit an inspection report to the Contractor and the AR within 24 hours. It should include inspection result on any identification of environmental deficiency and corresponding mitigation recommendations for taking immediate rectification action. Follow up of identified problem from the previous inspection shall also be included. The Contractor shall report on any rectification actions after the site inspection in accordance to the procedures and timeframe proposed by the ET in the environmental site inspection, deficiency and action reporting system.

13.2.4             If significant environmental issue is identified, additional site inspection shall be performed. This may also be required upon receipt or during investigation of environmental complaint in accordance to the Action Plan for environmental monitoring and audit.

13.3                   Compliance with Legal and Contractual Requirements

13.3.1             The environmental protection and pollution control laws in Hong Kong and project contract stipulate environmental protection and pollution control requirement for construction activities.

13.3.2             As such, the Contractor should submit all work method statements for AR’s approval and ET Leader’s review on environmental compliance with the contractual requirements. Sufficient environmental protection and pollution control measures shall be demonstrated in the method statement.

13.3.3             The ET Leader should also check that the work progress and programme can comply with legal requirement on environmental terms and to prevent violation in the future.

13.3.4             The Contractor shall regularly copy relevant documents to the ET for checking, including but not limited to updated Work Progress Reports, updated Works Programme, application letters for different licence/permits under the environmental protection laws, and all valid licences/permits. The site diary shall also be available for inspection upon ET Leader’s request.

13.3.5             Should any non-compliance with the contractual and legislative requirements is identified after reviewing the documents, the ET should notify the AR and Contractor so that follow-up actions can be taken. He should also inform the AR and Contractor if the current status on licence/permit application and any environmental protection and pollution control preparation works may not meet the works programme or the construction work may lead to potential violation of environmental protection and pollution control requirements in due course.

13.3.6             The Contractor shall carry out remedial actions immediately upon receipt of ET’s advice. The AR shall check with the Contractor to ensure that appropriate actions has been taken accordingly and can satisfy the environmental protection and pollution control requirement.

13.4                   Environmental Complaints

13.4.1             Upon receipt of complaint, the ET shall be notified and investigation work shall be undertaken. He shall follow the procedures as listed below:

a)             log complaint and date of receipt on to the complaint database

b)             investigate the complaint to determine its validity, and to identify if the problem is caused by work activities

c)             if the complaint is proved valid and due to works, formulate corresponding mitigation measures with the IEC

d)            advise the Contractor on any rectification work required

e)             evaluate the mitigation implementation progress and the updated situation

f)              if the complaint is transferred from the EPD, submit an interim report on the complaint investigation and remediation progress to the EPD within the time frame assigned by the EPD

g)             conduct additional monitoring and audit to verify the situation if necessary, and to determine any valid reason that the complaint will not recur

h)             respond to the complainant by reporting the investigation result and follow-up actions taken (within the time frame set by the EPD if the complaint is made by the EPD)

i)               record the complaint, investigation, the subsequent actions and results in the monthly EM&A reports

13.4.2             The Contractor and AR should provide necessary information and assistance to the ET for completing the investigation work. The Contractor shall implement any identified mitigation measures immediately and the AR shall ensure that the work has been carried out accordingly.

 

14                         reporting

14.1                   Introduction

14.1.1             The ET shall prepare baseline monitoring report, monthly EM&A reports, quarterly EM&A report and final EM&A report. They shall be submitted to the EPD in paper and electronic formats in a timely manner.

14.2                   Baseline Monitoring Report

14.2.1             Baseline monitoring of air quality and noise surveys are proposed. The baseline monitoring report shall be submitted within 10 workings days after completion of the monitoring work. The recipients include the IEC, Contractor and AR. It should first be verified by the IEC before formal submission to the EPD. The ET shall liaise with the relevant parties on the number of copies required. The report format and monitoring data format shall be agreed with the EPD prior to submission. The baseline monitoring report generally includes but not limited to the following:

a)             up to half a page executive summary;

b)             brief project background information;

c)             drawings showing locations of the baseline monitoring stations;

d)            monitoring results (in both hard and soft copies) together with the following information:

a.       monitoring methodology;

b.      equipment used and calibration details;

c.       parameters monitored;

d.      monitoring locations (and depth);

e.       monitoring date, time, frequency and duration;

f.       quality assurance (QA) / quality control (QC) results and detection limits;

e)             details of influencing factors, including:

a.       major activities, if any, being carried out on the site during the period;

b.      weather conditions during the period; and

c.       other factors which might affect results;

f)              determination of the Action and Limit Levels for each monitoring parameter and statistical analysis of the baseline data;

g)             revisions for inclusion in the EM&A Manual; and

h)             comments, recommendations and conclusions.

14.3                   EM&A Report

14.3.1             The ET Leader shall prepare monthly EM&A reports which summarize the result and findings in all EM&A work conducted in accordance to the Manual, such as monitoring and site inspection. It shall be submitted within 10 workings days of the end of each reporting month, with the first report due in the month after construction commences. The recipients include the IEC, Contractor, AR and the EPD. It should first be verified by the IEC before formal submission. The ET shall liaise with the relevant parties on the exact number of copies required and the report format for both paper and electronic format prior to submission of the first EM&A report.

14.3.2             As there may be changes in surrounding environment and nature of work in progress, the ET Leader shall review and update the number and location of monitoring stations and parameters to be monitored every 6 months or on as needed basis.

14.4                   First EM&A Report

14.4.1             The first EM&A report generally includes but not limited to the following:

a)                  Executive summary (1-2 pages):

a.       breaches of Action and Limit levels;

b.      complaint log;

c.       notifications of any summons and successful prosecutions;

d.      reporting changes; and

e.       future key issues.

b)                 Basic project information:

a.       project organisation including key personnel contact names and telephone numbers;

b.      construction programme;

c.       management structure, and

d.      works undertaken during the month

c)                  Environmental status:

a.       works undertaken during the month with illustrations (such as location of works); and

b.      drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations (with co-ordinates of the monitoring locations)

d)            A brief summary of EM&A requirements including:

a.       all monitoring parameters;

b.      environmental quality performance limits (Action and Limit levels);

c.       Event and Action Plans;

d.      environmental mitigation measures, as recommended in the project EIA Report; and

e.       environmental requirements in contract documents;

e)             Implementation status:

a.       advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the project EIA Report;

f)              Monitoring results (in both hard and CD copies) together with the following information:

a.       monitoring methodology;

b.      equipment used and calibration details;

c.       parameters monitored;

d.      monitoring locations;

e.       monitoring date, time, frequency, and duration;

f.       weather conditions during the period;

g.      major activities being carried out on site during the period;

h.      any other factors which might affect the monitoring results; and

i.        QA/QC results and detection limits;

g)             Report on non-compliance, complaints, and notifications of summons and successful prosecutions:

a.       record of all non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);

b.      record of all complaints received (written or verbal) for each media, including locations and nature of complaints investigation, liaison and consultation undertaken, actions and follow-up procedures taken, results and summary;

c.       record of all notification of summons and successful prosecutions for breaches of current environmental protection / pollution control legislation, including locations and nature of the breaches, investigation, follow-up actions taken, results and summary;

d.      review of the reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution sources and working procedures; and

e.       description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance;

h)             Others

a.       an account of the future key issues as reviewed from the works programme and work method statements;

b.      advice on the solid and liquid waste management status; and

c.       comments (for examples, effectiveness and efficiency of the mitigation measures), recommendations (for example, any improvement in the EM&A programme) and conclusions.

14.5                   Subsequent EM&A Reports

14.5.1             Subsequent EM&A report generally includes but not limited to the following:

a)             Executive summary (1 - 2 pages):

a.       breaches of Action and Limit levels;

b.      complaints log;

c.       notifications of any summons and successful prosecutions;

d.      reporting changes; and

e.       future key issues.

b)             Basic project Information:

a.       project organization including key personnel contact names and telephone numbers;

b.      programme;

c.       management structure; and

d.      works undertaken during the month.

c)             Environmental status:

a.       works undertaken during the month with illustrations (such as location of works etc.); and

b.      drawing showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations.

d)            Implementation status:

a.       advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the project EIA;

e)             Monitoring results (in both hard and diskette copies) together with the following information:

a.       monitoring methodology;

b.      equipment used and calibration details;

c.       parameters monitored;

d.      monitoring locations;

e.       monitoring date, time, frequency, and duration;

f.       weather conditions during the period;

g.      major activities being carried out on site during the period;

h.      any other factors which might affect the monitoring results; and

i.        QA / QC results and detection limits.

f)                  Report on non-compliance, complaints, and notifications of summons and successful prosecutions:

a.       record of all non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);

b.      record of all complaints received (written or verbal) for each media, including locations and nature of complaints investigation, liaison and consultation undertaken, actions and follow-up procedures taken, results and summary;

c.       record of all notification of summons and successful prosecutions for breaches of current environmental protection / pollution control legislation, including locations and nature of the breaches, investigation, follow-up actions taken, results and summary;

d.      review of the reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution sources and working procedures; and

e.       description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.

g)                 Others

a.       an account of the future key issues as reviewed from the works programme and work method statements;

b.      advice on the solid and liquid waste management status; and

c.       comments (for examples, effectiveness and efficiency of the mitigation measures), recommendations (for example, any improvement in the EM&A programme) and conclusions.

h)             Appendix

a.       Action and Limit levels;

b.      graphical plots of trends of monitored parameters at key stations over the past four reporting periods for representative monitoring stations annotated against the following:

                                                                       i.      major activities being carried out on site during the period;

                                                                     ii.      weather conditions during the period; and

                                                                   iii.      any other factors that might affect the monitoring results.

c.       monitoring schedule for the present and next reporting period;

d.      cumulative statistics on complaints, notifications of summons and successful prosecutions; and

e.       outstanding issues and deficiencies.

14.6                   Quarterly EM&A Summary Reports

14.6.1             The quarterly EM&A summary report shall consist of around 5 pages (3 pages of text and tables and 2 pages of figures). It generally includes but not limited to the following:

(a)           up to half a page executive summary;

(b)          basic project information:

a.       a synopsis of the project organisation, programme;

b.      contacts of key management;

c.       proponents' contacts and any hotline telephone number for the public to make enquiries; and

d.      a synopsis of works undertaken during the quarter.

(c)           a brief summary of EM&A requirements:

a.       monitoring parameters;

b.      environmental quality performance limits (Action and Limit Levels); and

c.       environmental mitigation measures, as recommended in the EIA Report;

(d)          environmental status:

a.       a synopsis of work undertaken during the quarter;

b.      drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;

(e)           implementation status:

a.          advice on the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the EIA report, summarised in the updated implementation schedule;

(f)           graphical plots of the trends of monitored parameters over the past 4 months (the last month of the previous quarter and the present quarter) for representative monitoring stations annotated against;

a.          the major activities being carried out on site during the period;

b.         weather conditions during the period; and

c.          any other factors which might affect the monitoring results;

(g)          advice on the solid and liquid waste management status;

(h)          summary of non-compliance

d.         a summary of non-compliance (exceedances) of the environmental quality performance limits (Action and Limit Levels);

e.          a brief review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures;

f.          a summary description of the actions taken in the event of non-compliance and any follow-up procedures related to earlier non-compliance;

g.         a summary record of all complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken;

(i)            comments (e.g. effectiveness and efficiency of the mitigation measures), recommendations (e.g. any improvement in the EM&A programme) and conclusions for the quarter; and

(j)            Project Proponent’s contacts and any hotline telephone number for the public to make enquiries.

14.7                   Final EM&A Report for Construction Phase

14.7.1             The “Guidelines for Development Projects in Hong Kong Environmental Monitoring and Audit” recommends that the termination of EM&A programme shall be determined on the following basis

i.        Completion of construction activities and insignificant environmental impacts of the remaining outstanding construction works;

ii.       Trends analysis to demonstrate the narrow down of monitoring exceedances due to construction activities and, return of ambient environmental conditions in comparison with baseline data; and

iii.      No environmental complaint and prosecution involved.

14.7.2             Prior to the proposed termination, the proposed termination may be required to consult related local community and should be endorsed by the IEC, AR and the Project Proponent or the Permit Holder prior to final approval from the Director of Environmental Protection.

14.7.3             A Final EM&A report shall be prepared summarizing the results and findings of the EM&A works throughout the construction period. It should be submitted within 14 working days after project completion. It generally includes but not limited to the following:

(a)           An executive summary;

(b)           Drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;

(c)           Basic project information:

a.         a synopsis of the project organisation;

b.        contacts of key management; and

c.         a synopsis of work undertaken during the entire construction period.

(d)          A brief summary of EM&A requirements:

a.         monitoring parameters;

b.        environmental quality performance limits (Action and Limit levels); and

c.         environmental mitigation measures, as recommended in the project EIA Report;

d.        Event and Action Plans.

(e)           A summary of the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the project EIA Report, summarised in the updated implementation schedule;

(f)            Graphical plots of the trends of monitored parameters over the construction period for representative monitoring stations, including the post-project monitoring annotated against:

a.         the major activities being carried out on site during the period;

b.        weather conditions during the period; and

c.         any other factors which might affect the monitoring results.

(g)           Summary of non-compliance:

a.         a summary of non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);

b.         a brief review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures as appropriate;

c.         a summary description of the actions taken in the event of non-compliance;

d.        a summary record of notifications of summons and successful prosecutions for breaches of the current environmental protection/pollution control legislations, locations and nature of the breaches, investigation, follow-up actions taken and results;

(h)          A review of the validity of EIA predictions through comparison with the monitoring data and identification of shortcomings in EIA recommendations;

(i)            A review of the effectiveness and cost-effectiveness of the monitoring methodology

(j)            A review of the effectiveness and efficiency of the mitigation measures and of the performance of the overall EM&A programme;

(k)          Recommendations for improvement;

(l)            Evaluation on the return of environmental condition the baseline or predicted conditions in the EIA Report; and

(m)        Conclusion on the environmental acceptability of the project.

14.8                   Data Keeping

14.8.1             The ET shall keep the site documents (such as monitoring field records, site inspection forms etc.) in order and make available for inspection upon request. These documents do not form part of the EM&A report. The monitoring data should also be input into electronic format for checking upon request. All documents and data shall be kept for at least one year after completion of the construction contract.

14.9                   Interim Notification of Environmental Quality Limit Exceedances

14.9.1             Should any exceedance in environmental quality performance limit be recorded, the ET Leader should immediately inform the IEC, AR, Contractor and EPD as appropriate in accordance to the Event and Action Plan. He should advise to the IEC, AR, Contractor and EPD the investigation result, remediation actions performed, effectiveness of the measures and proposal of further actions required. A sample interim notification template can be found in Appendix D.

 

15                         conclusion

15.1.1             This Manual lists out the EM&A requirements for environmental parameters air quality, hazard to life, noise, water quality, sewerage and sewage treatment, waste management, land contamination, ecology, landscape and visual and cultural heritage. The EM&A programme covers the design, construction and operational phases of the Project to monitor the environmental impacts on the neighbouring sensitive receivers. Regular monitoring and/or site inspection are recommended under different phases. The following table summarizes the monitoring requirements for each environmental aspect:

Table 15-1      Summary of EM&A Requirements

Aspects

Environmental Monitoring and Audit

Design Phase

Construction Phase

Operational Phase

Air Quality

O

P

O

Hazard to Life

O

O

O

Noise

O

P

P

Water Quality

O

O

P(1)

Sewerage and Sewage Treatment

O

O

O

Waste Management

O

P

O

Land Contamination

O

O

O

Ecology

O

P

O

Landscape and Visual

P

P

P

Cultural Heritage

O

O

O

(1): Water quality of re-use surface run-off during operational phase will be monitored if natural turf is adopted at the Main Stadium or the Public Sports Ground.

15.1.2             Any non-compliance identified should be notified to all parties according to the Event and Action Plan and remediation measures should be undertaken. Complaints received should be investigated and problems related to construction works should be resolved till satisfaction. Baseline, monthly, quarterly and final EM&A reports shall be prepared to regularly report the monitoring results and evaluate the EM&A works.