15 environmental outcomes

15.1 Environmental Designs Recommended and Environmentally Friendly Options Considered

15.1.1 This EIA study has been carried out for the proposed Multi-purpose Sports Complex at Kai Tak in accordance with the EIA Study Brief (No. ESB-274/2014). Table 15-1 shows a summary of environmental designs recommended and environmentally friendly measures considered for the Project.

Table 15-1 Summary of Environmental Designs and Environmental Friendly Measures

Issues	Environmental Outcomes/Benefits
Environmental Designs Recommended and Environmentally Friendly Measures Considered	Acoustic Design in Minimizing Noise Transmission - The structure and fixed roof of the Main Stadium will be soundproofing and complete in order to minimize sound leakage - The entrances of the Main Stadium will have special acoustic design to minimize noise leakage (e.g. double acoustic doors) - The retractable roof, which forms part of the design of the Main Stadium, will be closed when needed - Acoustic panels will be attached underneath the fixed roof of the main Stadium to improve the acoustic performance of the roof - A distributed public address system will be adopted with the loudspeakers distributed over and directed towards the spectator stand - The Public Sports Ground will have a cover over the spectator stand with noise absorption panels to mitigate the noise from the spectators. Operation Management in Minimizing Human Noise - Crowd dispersion routes have been designated for spectators to disperse under the podium deck and along covered routes which will partially screen the dispersal route from the nearby noise sensitive receivers for major events in the Main Stadium after 10:30 p.m - The future operator is recommended to manage the crowd dispersal by marshalling the spectators to leave the stadium in an orderly and quiet manner for the crowd dispersal via the designated routes. Design for Minimizing Traffic Emissions - The Project has been designed with minimal car parking spaces to encourage the use of mass transport system which is within walking distances. This would minimize road emissions from private cars and public transport. Green Measures for Minimizing Traffic Emissions - Electric vehicle (EV) charging facilities will be provided for at least one-third of the car parking spaces for private cars - EV charging enabling facilities will be provided for all car parking spaces for private cars - Priority will be given to EV to use the car parking spaces as far as practicable - If the future operator provides transport services for the staff and/or guests, electric saloon cars, coaches, etc. should be used under normal operation - Entry of heavy goods vehicles to MPSC should avoid peak hours, weekdays from 7 am to 10 am and from 4 pm to 7 pm, except for major events (i.e. with more than 20,000 persons). Beneficial Water Reuse for Minimizing Water Wastage - Intercepting and storage system will be provided to collect surface runoff if natural turf is adopted and fertilizers/pesticides are used so as to ensure no residual fertilizers and pesticides from the turf surface run-off are discharged. Beautification of Project Site for Public Enjoyment - The Project site including the public open space will be extensively landscaped. Reduction of Glare Impact of Future Lighting Provision - The lightings will be positioned and adjusted to avoid pointing directly to sensitive receivers - Anti-glare shields will be provided to all lighting. - Paving materials with low reflectance will be adopted to minimize glare impact. Green Measures in Waste Reduction - Prefabricated construction methods should be adopted as far as practicable to minimize construction waste - Sufficient recycling containers will be provided at suitable locations to encourage recycling of such waste aluminum cans, plastics and waste paper - Waste minimization will be promoted through various means, such as wider use of information technology and announcements - The Project Proponent will incorporate appropriate contract provisions to arrange the proposed re-use of excavated materials in their site clearance and site formation and excavation works sites.

Issues

Environmental Outcomes/Benefits

Environmental Designs Recommended and Environmentally Friendly Measures Considered

Acoustic Design in Minimizing Noise Transmission

- The structure and fixed roof of the Main Stadium will be soundproofing and complete in order to minimize sound leakage

- The entrances of the Main Stadium will have special acoustic design to minimize noise leakage (e.g. double acoustic doors)

- The retractable roof, which forms part of the design of the Main Stadium, will be closed when needed

- Acoustic panels will be attached underneath the fixed roof of the main Stadium to improve the acoustic performance of the roof

- A distributed public address system will be adopted with the loudspeakers distributed over and directed towards the spectator stand

- The Public Sports Ground will have a cover over the spectator stand with noise absorption panels to mitigate the noise from the spectators.

Operation Management in Minimizing Human Noise

- Crowd dispersion routes have been designated for spectators to disperse under the podium deck and along covered routes which will partially screen the dispersal route from the nearby noise sensitive receivers for major events in the Main Stadium after 10:30 p.m

- The future operator is recommended to manage the crowd dispersal by marshalling the spectators to leave the stadium in an orderly and quiet manner for the crowd dispersal via the designated routes.

Design for Minimizing Traffic Emissions

- The Project has been designed with minimal car parking spaces to encourage the use of mass transport system which is within walking distances. This would minimize road emissions from private cars and public transport.

Green Measures for Minimizing Traffic Emissions

- Electric vehicle (EV) charging facilities will be provided for at least one-third of the car parking spaces for private cars

- EV charging enabling facilities will be provided for all car parking spaces for private cars

- Priority will be given to EV to use the car parking spaces as far as practicable

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

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

Beneficial Water Reuse for Minimizing Water Wastage

- Intercepting and storage system will be provided to collect surface runoff if natural turf is adopted and fertilizers/pesticides are used so as to ensure no residual fertilizers and pesticides from the turf surface run-off are discharged.

Beautification of Project Site for Public Enjoyment

- The Project site including the public open space will be extensively landscaped.

Reduction of Glare Impact of Future Lighting Provision

- The lightings will be positioned and adjusted to avoid pointing directly to sensitive receivers

- Anti-glare shields will be provided to all lighting.

- Paving materials with low reflectance will be adopted to minimize glare impact.

Green Measures in Waste Reduction

- Prefabricated construction methods should be adopted as far as practicable to minimize construction waste

- Sufficient recycling containers will be provided at suitable locations to encourage recycling of such waste aluminum cans, plastics and waste paper

- Waste minimization will be promoted through various means, such as wider use of information technology and announcements

- The Project Proponent will incorporate appropriate contract provisions to arrange the proposed re-use of excavated materials in their site clearance and site formation and excavation works sites.

15.2 Documentation of Key Assessment Assumptions, Limitation of Assessment Methodologies and Related Prior Agreement(s) with the Director

15.2.1 The key assessment assumptions, limitation of assessment methodologies and all relevant prior agreements with EPD are summarized in Appendix 15.1.

15.3 Individual Environmental Concerns and Key Environmental Problems Avoided/Minimized

15.3.1 A summary of individual environmental concerns for the Project and the key environmental problems avoided/minimized for each aspects in this Project are listed in Table 15-2 below:

Table 15-2 Environmental Concerns and Key Environmental Problems Avoided/Minimized

Issues	Environmental Outcomes/Benefits
Air Quality	Benefits of Environmental Protection Measures Recommended During the construction phase, dust control measures stipulated in the Air Pollution Control (Construction Dust) Regulation (e.g. watering of exposed grounds every hour and proper stockpiling) are proposed to minimize TSP, RSP and FSP emissions. No adverse residual air quality impact is anticipated during the construction phase. During the operation phase, the proposed transport management measures and green initiatives will reduce vehicle emissions from the traffic induced from the Project and contribute towards improving the air quality in the region. Environmentally Sensitive Areas and Estimated Population Protected Existing and planned residential buildings, offices in government institutions and commercial buildings, recreation areas and places of public worship in the vicinity of the Project site. Compensation Areas Included N/A
Hazard to Life	Benefits of Environmental Protection Measures Recommended The Project site is outside the Consultation Zone / study area of the identified hazardous sources. Environmentally Sensitive Areas and Estimated Population Protected N/A Compensation Areas Included N/A
Noise	Benefits of Environmental Protection Measures Recommended Construction noise will be generated from use of powered mechanical equipment. With the implementation of the recommended mitigation measures such as adoption of good site practice and use of quieter PMEs and mobile noise barriers, construction noise levels at all the representative noise sensitive receivers will comply with the daytime noise criterion. During operational phase, no significant change in traffic noise levels is expected and the overall traffic noise levels will comply with the stipulated noise criteria. The proposed acoustic design including the soundproofing structure and fixed roof in the Main Stadium and extended fixed roof in the Public Sports Ground will ensure no unacceptable noise impact on receivers during events at the MPSC. The retractable roof, which forms part of the design of the Main Stadium, will be closed when needed. Specific dispersal routes will be used for the crowd dispersion after 10:30 p.m. The future operator is recommended to direct the crowd after leaving the Main Stadium immediately to the ground level of MPSC instead of on the podium level in order to minimize the exposure of the dispersal route to the nearby sensitive receivers. Environmentally Sensitive Areas and Estimated Population Protected Existing and planned residential buildings, places of public worship, and education institutions in the vicinity of the Project site. Compensation Areas Included N/A
Water	Benefits of Environmental Protection Measures Recommended The Project site is currently occupied by exposed construction sites that encourage soil erosion, causing muddy surface runoff under heavy rain conditions. Also, the existing concreted-paved car parks are impermeable to water, causing accumulation of rainwater. Upon completion of the MPSC, the landscaped area will be grown with vegetation that would prevent soil erosion. The site will be fully installed with a drainage system. During the construction phase, good site practices outlined in ProPECC PN 1/94 Construction Site Drainage will be adopted to minimize wastewater generation that would contaminate the drainage systems and nearby water bodies. During the operational phase, separate sewerage and stormwater systems will be properly maintained. All manholes, sand traps and oil interceptors will be cleaned and maintained regularly. Fertilizers and pesticides will be applied according to the LCSD’s prevailing code of practice and the Pesticides Ordinance (Cap. 133) if natural turf is used. Surface water from natural turf areas of the Main Stadium and Public Sports Ground will be collected and stored in storage tanks for reuse according to a Stormwater Re-use Management Plan. Environmentally Sensitive Areas and Estimated Population Protected Water bodies including To Kwa Wan Typhoon Shelter, Kai Tak Approach Channel, Victoria Harbour and Kai Tak Nullah. Compensation Areas Included N/A
Sewerage and Sewage Treatment	Benefits of Environmental Protection Measures Recommended New sewers will be laid to direct the sewage from MPSC to To Kwa Wan Preliminary Treatment Works for treatment without overloading the system. No discharge into nearby water bodies will be permitted. Environmentally Sensitive Areas and Estimated Population Protected Water bodies including To Kwa Wan Typhoon Shelter, Kai Tak Approach Channel, Victoria Harbour and Kai Tak Nullah. Compensation Areas Included N/A
Waste Management	Benefits of Environmental Protection Measures Recommended Mitigation measures are proposed for minimizing waste generation and off-site disposal via land or marine routes. Precast and prefabricated construction will be adopted. Construction and Demolition Materials will be reused and recycled as much as possible. During the operational phase, adequate solid waste storage facilities will be provided for proper storage disposal after events. Visitors are encouraged to minimize waste generation by means of promotional materials, e.g. wider use of IT and announcement. Environmentally Sensitive Areas and Estimated Population Protected Air and water sensitive receivers within and near the Site and along transportation routes. Compensation Areas Included N/A
Land Contamination	Benefits of Environmental Protection Measures Recommended Land contamination identified in the North Apron had been cleaned up and the site is considered suitable for the intended use for this Project. Environmentally Sensitive Areas and Estimated Population Protected N/A Compensation Areas Included N/A
Terrestrial Ecology	Benefits of Environmental Protection Measures Recommended The Project site is located on a developed area with human activities such as construction works and car parking. No site or species of conservation importance will be directly affected by the proposed development. Indirect impacts will be minimized by implementing air, noise and water quality mitigation measures. Environmentally Sensitive Areas and Estimated Population Protected Vegetation and wildlife within the Study Area Compensation Areas Included N/A
Landscape and Visual	Benefits of Environmental Protection Measures Recommended Construction sites and open car parks within the Project Site will be converted to the extensively landscaped MPSC. The design of MPSC will be coherent with the surrounding Kai Tak Development Area in the future. The Main Stadium will be a landmark viewed from across the Victoria Harbour. Environmentally Sensitive Areas and Estimated Population Protected Landscape resources, landscape character areas and visual sensitive receivers surrounding the Project Site. Compensation Areas Included Compensatory planting for felled trees
Cultural Heritage	Benefits of Environmental Protection Measures Recommended The Project Site is located on reclaimed land with no archaeological significance. No built heritage is found within the Project Site. Environmentally Sensitive Areas and Estimated Population Protected N/A Compensation Areas Included N/A
Key Environmental Problems avoided	- Kai Tak has been vacated after the former Kai Tak Airport was relocated to Chek Lap Kok in 1997. No site formation is necessary. - The Project Site is currently a large chunk of land with exposed construction sites and open parking area. No major demolition works are required. - The Project site will be divided into smaller works zones and construction works will be carried out in phases to minimize concurrent polluting activities. - Precast construction materials (e.g. concrete elements and truss) will be used as far as practicable to avoid onsite production.