Sha Tin Cavern Sewage Treatment Works EIA Report

10 LANDSCAPE AND VISUAL IMPACT

10.1 Introduction

10.1.1.1 This section presents the findings of the assessment of potential landscape and visual impacts associated with the Project.

10.1.1.2 Landscape and visual impacts assessment are assessed in accordance with the criteria and guidelines as stated in Annexes 10 and 18 of the TM and EIAO Guidance Note No. 8/2010 on “Preparation of Landscape and Visual Impact Assessment under the Environmental Impact Assessment Ordinance”.

10.1.1.3 The assessment area for landscape impact assessment shall include areas within a 500m distance from the site boundary of the Project and any other areas likely to be impacted by the Project. The assessment area for the visual impact assessment shall be defined by the visual envelope of the Project.

10.1.1.4 The list of all DPs under Schedule 2 within the assessment area is listed in Section 1.2 of this Report. The alternative options/alignments/designs for the Project considered are discussed in Section 2 of this Report.

10.2 Environmental Legislation, Standards and Criteria

10.2.1.1 The following legislation, standards and guidelines are applicable to landscape and visual impact assessment associated with the construction and operation of the Project:

 EIAO (Cap.499 S.16) and the EIAO-TM, particularly Annexes 10 and 18;

 EIAO Guidance Note No. 8/2010;

 Town Planning Ordinance (Cap. 131);

 Protection of Endangered Species of Animals and Plants Ordinance (Cap. 586);

 HKSPG Chapters 4, 10 and 11;

 AFCD Nature Conservation Practice Note No. 2 - Measurement of Diameter at Breast Height (DBH);

 AFCD Nature Conservation Practice Note No. 3 – The Use of Plant Names;

 ETWB TCW No. 29/2004 - Registration of Old and Valuable Trees (OVT), and Guidelines for their Preservation;

 ETWB TCW No. 8/2005 - Aesthetic Design of Ancillary Buildings in Engineering Projects;

 DEVB TCW No. 2/2012 - Allocation of Space for Quality Greening on Roads;

 DEVB TCW No. 3/2012 - Site Coverage of Greenery for Government Building Projects;

 DEVB TCW No. 6/2015 - Maintenance of Vegetation and Hard Landscape Features;

 DEVB TCW No. 7/2015 - Tree Preservation;

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 Geotechnical Engineering Office (GEO) Publication No. 1/2011 – Technical Guidelines on Landscape Treatment and Bio-Engineering for Man-Made Slopes and Retaining Walls;

 Guidelines on Tree Transplanting (September 2014) issued by Greening, Landscape and Tree Management (GLTM) Section of DEVB;

 Guidelines on Tree Preservation during Development (April 2015) issued by GLTM Section of DevB; and

 Study on Landscape Value Mapping of .

10.2.1.2 The OZP gazetted under the Town Planning Ordinance provides the statutory framework for land use development. Reference has been made to the Approved OZP No. S/MOS/22 (15.1.2016) and the Approved Sha Tin OZP No. S/ST/32 (11.12.2015).

10.3 Assessment Methodology

10.3.1 Landscape Impact Assessment Methodology

10.3.1.1 The landscape impacts have been assessed according to the following procedures.

 Identification of the baseline landscape resources (LRs) and landscape characters found within the study area. This is achieved by site visits and desktop study of topographical maps, information databases and photographs.

 Assessment of the degree of sensitivity of the LRs and landscape character areas (LCAs). This is influenced by a number of factors including whether the resource/character is common or rare, whether it is considered to be of local, regional, national or global importance, whether there are any statutory or regulatory limitations/requirements relating to the resource, the quality of the resource/character, the maturity of the resource and the ability of the resource/character to accommodate change.

 The sensitivity of each landscape feature and character area is classified as follows:

High: Important landscape character or resource of particularly distinctive character or high importance, sensitive to relatively small change.

Medium: Landscape character or resource of moderately valued landscape characteristics reasonably tolerant to change.

Low: Landscape character or resource, the nature of which is largely tolerant to change.

 Identification of potential sources of landscape changes. These are the various elements of the construction works and operation procedures that would generate landscape impacts.

 The magnitude of landscape changes is classified as follows:

Large: The landscape character or landscape resource would incur a major change.

Intermediate: The landscape character or landscape resource would incur a moderate change.

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Small: The landscape or landscape resource would incur slight or barely perceptible change.

Negligible: The landscape or landscape resource would incur no discernible change.

 Identification of potential landscape mitigation measures. These may take the form of adopting basic engineering design to prevent and/or minimise adverse landscape impacts before adopting other mitigation or compensatory measures to alleviate the impacts. Potential mitigation measures shall also include the preservation of vegetation and natural landscape resources, transplanting trees in good condition and value, provision of screen planting, re-vegetation of disturbed lands, compensatory planting, woodland restoration, aesthetic design of aboveground structures including provision of finishes, colour scheme, texture of materials used and any measures to mitigate the impact on the existing and planned land use and visually sensitive receivers (VSRs). A programme for the mitigation measures is provided. The agencies responsible for the funding, implementation, management and maintenance of the mitigation measures are identified.

 Prediction of the significance of landscape impacts before and after the implementation of the mitigation measures. By synthesizing the magnitude of the various impacts and the sensitivity of the various landscape resources, it is possible to categorise impacts in a logical, well-reasoned and consistent fashion. Table 10.1 shows the rationale for dividing the degree of significance into four thresholds, namely insubstantial, slight, moderate, and substantial, depending on the combination of a negligible-small-intermediate-large magnitude of change and a low-medium-high degree of sensitivity of landscape resource /character.

Table 10.1 Relationship between Landscape Sensitivity and Magnitude of Change in Defining Impact Significance Moderate / Large Moderate Substantial Substantial

Moderate / Intermediate Slight / Moderate Moderate Magnitude Substantial of Change Insubstantial / Small Slight / Moderate Moderate Slight

Negligible Insubstantial Insubstantial Insubstantial

Low Medium High

Sensitivity of Landscape Character Area and Resource

Note: All impacts are Adverse unless otherwise noted with Beneficial.

 The significance of landscape impacts is categorised as follows:

Substantial: Adverse / beneficial impact where the proposal would cause significant deterioration or improvement in existing landscape quality.

Moderate: Adverse / beneficial impact where the proposal would cause a noticeable deterioration or improvement in existing landscape quality.

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Slight: Adverse / beneficial impact where the proposal would cause a barely perceptible deterioration or improvement in existing landscape quality.

Insubstantial: No discernible change in the existing landscape quality.

 Prediction of Acceptability of Impacts. An overall assessment of the acceptability, or otherwise, of the impacts according to the five criteria set out in Annex 10 of the EIAO-TM.

10.3.2 Visual Impact Assessment Methodology

10.3.2.1 The visual impacts have been assessed according to the following procedures.

 Identification of the Visual Envelope during the construction and operation phases of the project. This is achieved by site visit and desktop study of topographic maps, photographs and preparation of cross-sections to determine visibility of the Project from various locations.

 Identification of the VSRs within the Visual Envelope at construction and operation phases. These are the people who would reside within, work within, play within, or travel through, the Visual Envelope.

 Assessment of the degree of sensitivity of the VSRs. Factors considered include:

o The type of VSRs, which is classified according to whether the person is at home, at work, at play, or travelling. Those who view the change from their homes are considered to be highly sensitive as the attractiveness or otherwise of the outlook from their home will have a substantial effect on their perception of the quality and acceptability of their home environment and their general quality of life. Those who view the impact from their workplace are considered to be only moderately sensitive as the attractiveness or otherwise of the outlook will have a less important, although still material, effect on their perception of their quality of life. The degree to which this applies depends on whether the workplace is industrial, retail or commercial. Those who view the impact whilst taking part in an outdoor leisure activity may display varying sensitivity depending on the type of leisure activity. Those who view the impact whilst travelling on a public thoroughfare will also display varying sensitivity depending on the speed of travel.

o other factors which are considered (as required by EIAO GN 8/2010) include the value and quality of existing views, the availability and amenity of alternative views, the duration or frequency of view, and the degree of visibility.

 The sensitivity of VSRs is classified as follows:

High: The VSR is highly sensitive to any change in their viewing experience.

Medium: The VSR is moderately sensitive to any change in their viewing experience.

Low: The VSR is only slightly sensitive to any change in their viewing experience.

 Identification of relative numbers of VSRs. This is expressed in terms of whether there are “many“, “medium” and “few” VSRs in any one category of VSR.

 Identification of potential sources of visual changes. These are the various elements of the construction works and operation that would generate visual changes.

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 Assessment of the potential magnitude of visual changes. Factors considered include:

o the compatibility with the surrounding landscape;

o the duration of the impact;

o the reversibility of the impact;

o the scale of the impact and distance of the source of impact from the viewer; and

o the degree of visibility of the impact, and the degree of which the impact dominates the field of vision of the viewer.

 The magnitude of visual changes is classified as follows:

Large: The VSRs would suffer a major change in their viewing experience.

Intermediate: The VSRs would suffer a moderate change in their viewing experience.

Small: The VSRs would suffer a small change in their viewing experience.

Negligible: The VSRs would suffer no discernible change in their viewing experience.

 Identification of potential landscape mitigation measures. These may take the form of adopting basic engineering design to prevent and/or minimise adverse visual impacts before adopting other mitigation or compensatory measures to alleviate the impacts. Potential mitigation measures shall also include the preservation of vegetation and natural landscape resources, provision of screen planting, re-vegetation of disturbed lands, compensatory planting, woodland restoration, aesthetic design of aboveground structures including provision of finishes, colour scheme, texture of materials used and any measures to mitigate the impact on the existing and planned land use and VSRs. A programme for the mitigation measures is provided. The agencies responsible for the funding, implementation, management and maintenance of the mitigation measures are identified.

 Prediction of the significance of visual impacts before and after the implementation of the mitigation measures. By synthesizing the magnitude of the various visual impacts and the sensitivity of the VSRs, and the numbers of VSRs that are affected, it is possible to categorise the degree of significance of the impacts in a logical, well-reasoned and consistent fashion. Table 10.2 shows the rationale for dividing the degree of significance into four thresholds, namely, insubstantial, slight, moderate and substantial, depending on the combination of a negligible-small- intermediate-large magnitude of change and a low-medium-high degree of sensitivity of VSRs.

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Table 10.2 Relationship between VSRs Sensitivity and Magnitude of Change in Defining Impact Significance Moderate / Large Moderate Substantial Substantial

Slight / Moderate / Intermediate Moderate Magnitude Moderate Substantial of Change Insubstantial / Slight / Small Moderate Slight Moderate

Negligible Insubstantial Insubstantial Insubstantial

Low Medium High

Sensitivity of VSRs

Note: All impacts are Adverse unless otherwise noted with Beneficial.

 The significance of visual impacts is categorised as follows:

Substantial: Adverse / beneficial impact where the proposal would cause significant deterioration or improvement in existing visual quality.

Moderate: Adverse / beneficial impact where the proposal would cause a noticeable deterioration or improvement in existing visual quality.

Slight: Adverse / beneficial impact where the proposal would cause a barely perceptible deterioration or improvement in existing visual quality.

Insubstantial: No discernible change in the existing visual quality.

 Prediction of Acceptability of Impacts. An overall assessment of the acceptability, or otherwise, of the impacts according to the five criteria set out in Annex 10 of the EIAO-TM.

10.4 Review of Planning and Development Control Framework

10.4.1.1 Relevant plan(s) and/or studies which may identify areas of high landscape value, country parks, coastal protection area, GB and CA designations are reviewed. Any guidelines on landscape and urban design strategies and frameworks that may affect the appreciation of the Project are also reviewed. The aim is to gain an insight of the future outlook of the affected area so as to assess whether the Project can fit into the surrounding setting. Any conflict with statutory town plan(s) is highlighted and appropriate follow-up action is recommended.

10.4.1.2 Apart from the statutory OZPs, a number of adopted / draft departmental Layout Plans as listed below are also reviewed:

 Adopted Area 64 Layout Plan No. L/ST 64/1A

 Adopted Sha Tin New Town Area 72 Layout Plan – A Kung Kok Fishermen’s Village No. L/ST 72/1

 Draft Sha Tin Area 75 – Layout Plan No. L/ST 75/2D.

10.4.1.3 The Study Area of the Project is covered under two OZPs. They are the Approved Ma On Shan OZP No. S/MOS/22 (15.1.2016) and the Approved Sha Tin OZP No. S/ST/32

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(11.12.2015). The landuse zones overlaid on the Project layout is shown in Figure No. 60334056/EIA/10.01. The land uses zones to be potentially affected by the Project and the future outlook of the area is discussed and summarised Table 10.3.

Table 10.3 Summary of the Review of Planning and Development Control Framework Approx. Current Design Potential change to the OZP Plan Area of the and Land Use OZP and the anticipated Title and Land Use Conservation Zonings future outlook of the area No. Zones to Intention in the due to the Project. be affected OZP Approved Other 28ha Sewage Under the Project, the existing Sha Tin OZP Specified generated in the STSTW will be No. S/ST/32 Uses (OU) Sha Tin is treated decommissioned and (11.12.2015) in the existing demolished. The STSTW will and STSTW. be relocated to Caverns. The Approved Ma demolished site will be cleared On Shan and pending for future OZP No. developments. Since the S/MOS/22 future developments at the (15.1.2016) site of the existing STSTW after its decommissioning are under a separate project, any recommendation to the change in OZP shall be made later. GB 1.41ha The current Under the Project, the existing planning natural woodland slopes in the intention of this GB Zone at Nui Po Shan will zone is primarily be removed for the for defining the construction and operation of limits of urban the relocated STSTW facilities and sub-urban at the Main Portal Area, development Secondary Portal Area, areas by natural Ventilation Shaft and woodland slopes associated access road and at Nui Po Shan. site formation works. The Project shall be carefully designed to blend in the proposed above ground structures with the existing sloped woodland backdrop.

10.4.1.4 Since there would be change in the land use in the Approved Sha Tin OZP No. S/ST/32 (11.12.2015) and Approved Ma On Shan OZP No. S/MOS/22 (11.12.2016), ongoing liaison with PlanD regarding the revised boundary of the GB Zone shall be carried out throughout the design process. It is recommended that both the Sha Tin OZP and Ma On Shan OZP shall be amended to incorporate the latest changes arising from the Project when the design layouts are finalised.

10.4.1.5 Having reviewed the adopted / draft departmental Layout Plans as listed in Para 10.4.1.2, there would not be any conflict to the Layout Plans due to the Project.

10.5 Baseline Study

10.5.1 Landscape Resources

10.5.1.1 The details of Baseline LRs which will be potentially affected by the Project, together with their sensitivity are described in Table 10.4. The locations of baseline LRs are mapped in Figure No. 60334056/EIA/10.11. Photo views illustrating the LRs within the study area are illustrated in Figure Nos. 60334056/EIA/10.12 to 10.14.

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Table 10.4 Baseline LRs and their Sensitivity LRs Description Sensitivity LR-01 Amenity Planting in the Existing STSTW Medium This LR covers extensive at grade trees and shrubs planting, vertical greening and green roof within the existing STSTW Site. Trees and shrubs are found in the landscape areas between access road and buildings/structures. Trees found are all common landscape species. There is no OVT nor endangered and protected species identified within this resource. Green roofs are found on a number of utility buildings with common landscape species. Vertical greening is found on the facade of existing sludge storage tank. Most of the vegetation are recently established and considered as young to semi-mature. It is a common landscape resource. The quality of the existing vegetation is medium. The ability to accommodate change is high and the sensitivity of this LR is considered as medium. LR-02 Waterbodies in Shing Mun River and Sha Tin Hoi High This LR comprises waterbodies of Shing Mun River, which is an artificial river channel, and Sha Tin Hoi at the mouth of the Shing Mun River in Tolo Harbour. These waterbodies are popular place for water sports, such as rowing, canoeing and dragon boat racing. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate change is low. The sensitivity of this LR is considered as high. LR-03 Landscape Areas in Sha Tin Racecourse High This LR is the racecourse in the . Penfold Park, which is the key landscape areas encircled by the racing track in the Racecourse, comprises features green areas, ornamental tree and shrub planting. It is a unique landscape resource which is of regional importance. The quality of this resource is high and the ability of this resource to accommodate change is low. The sensitivity of this LR is considered as high. LR-04 Ma On Shan Promenade High This promenade locates along the coast of Ma On Shan overlooking Sha Tin Hoi and offers a magnificent view of the peaks of , featuring a panorama of the sea and the sky. Ma On Shan Promenade provides both active and passive recreations for the local residents. Lush tree and shrub planting are found along the promenade. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate changes is low. The sensitivity of this LR is considered as high. LR-05 Shing Mun River Promenade High This promenade locates at the both sides of Shing Mun River and provides places to appreciate the day and night views along Shing Mun River. Shing Mun River Promenade is a linear space comprising cycle track and riverside walk with lush tree and shrub planting. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate changes is low. The sensitivity of this LR is considered as high.

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LRs Description Sensitivity LR-06 Landscape Areas within Kam Tai Court High Landscape areas within Kam Tai Court provide spaces for passive and active recreation for the local residents. Ornamental trees and shrub planting are found in the landscape areas of Kam Tai Court. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate changes is low. The sensitivity of this LR is considered as high. LR-07 Roadside Planting Areas along Ma On Shan Road Medium Roadside planting areas along Ma On Shan Road comprise predominately tree and shrub planting. Plant species found are common roadside landscape species in Hong Kong. The quality of this LR is considered as medium. The ability to accommodate changes and the sensitivity of this LR is considered as medium. LR-08 Woodland on Slopes of Nui Po Shan High Woodland planting on existing slope comprises canopy trees and understory vegetation. They are common species found in woodland of Hong Kong. This is a local hillside landscape feature in Hong Kong which provides natural green backdrop for the urban fringe of Ma On Shan region. This LR is a common landscape resource. The quality of these resources is high. The ability to accommodate change is low and the sensitivity of this resource is considered as high. LR-09 Landscape Areas within Chevalier Garden High Landscape areas within Chevalier Garden provide open spaces for passive and active recreation for the local residents. Ornamental trees and shrub planting are found in the landscape areas of Chevalier Garden. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate changes is low. The sensitivity of this LR is considered as high. LR-10 Roadside Planting Areas along Tolo Highways Medium Roadside planting areas along Tolo Highways comprise predominately tree and shrub planting. Plant species found are common roadside landscape species in Hong Kong. The quality of this LR is considered as medium. The ability to accommodate changes and the sensitivity of this LR is considered as medium. LR-11 Woodland on Slopes of Medium Woodland planting on existing natural slopes and man-made slopes at Kau To Shan comprises mature trees and understory vegetation. Vegetation found is common native and exotic species in woodlands of Hong Kong. It is a common landscape resource. The quality of these resources is medium. The ability to accommodate changes and the sensitivity of this LR is considered as medium. LR-12 Landscape Areas at Ah Kung Kok Fishermen Village Medium Landscape Areas found at Ah Kung Kok Fishermen Village are mainly amenity planting along the internal road of the village. Vegetation found is common landscape species in Hong Kong. It is a common landscape resource. The quality of these resources is medium. The ability to accommodate changes and the sensitivity of this LR is considered as medium.

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LRs Description Sensitivity LR-13 Stream Running along Mui Tsz Lam Road Low This is an engineered stream course running along Mui Tsz Lam Road. There is no landscape treatment at the embankment and the bottom of the stream course. It is a common landscape resource. The ability to accommodate changes is high and the sensitivity of this LR is considered low. LR-14 Landscape Areas in Shatin Hospital Medium Amenity tree and shrub planting is found within the landscape areas of Shatin Hospital. It is a common landscape resource. The quality of this resource is medium and the ability of this resource to accommodate changes is medium. The sensitivity of this LR is considered as medium. LR-15 Landscape Areas in Hyatt Regency Hong Kong, Sha Tin High Landscape areas within Hyatt Regency provide amenity landscape for the hotel residents. Ornamental trees and shrub planting are found in the landscape areas. It is a common landscape resource. The quality of this resource is high and the ability of this resource to accommodate changes is low. The sensitivity of this LR is considered as high. LR-16 Landscape Areas in Marine Outer Waters District Medium Headquarter and Water Supplies Department (WSD) Salt Water Pumping Station Buffer tree planting is found at the periphery of Marine Outer Waters District Headquarter (HQ) and WSD Salt Water Pumping Station. It is a common landscape resource. The quality of this resource is medium and the ability of this resource to accommodate changes is medium. The sensitivity of this LR is considered as medium. LR-17 Cycle Track connecting the waterfront promenade and Medium A Kung Kok Street This is a two-way cycle track connecting the waterfront promenade at Shing Mun River Channel and A Kung Kok Street. The total length of this section of the cycle track is approximately 300m. It is a common recreational resource. The quality of this resource is medium and the ability to accommodate changes is medium. The sensitivity of this LR is considered as medium.

10.5.2 Landscape Character Areas (LCAs)

10.5.2.1 The details of Baseline LCAs which will be potentially affected by the Project, together with their sensitivity are described in Table 10.5. The locations of baseline LCAs are mapped in Figure No. 60334056/EIA/10.21. Photo views illustrating the LCAs within the study area are illustrated in Figure Nos. 60334056/EIA/10.22 to 10.24.

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Table 10.5 Baseline LCAs and their Sensitivity LCAs Description Sensitivity LCA-01 Sha Tin Waterfront Industrial LCA Low This LCA comprises low-lying reclaimed land adjoining the Shing Mun River Channel. It is primarily characterised by an extensive area of STSTW including tanks, associated plants buildings, car park and pumping station. Trees, shrubs, vertical greening and roof greening have been extensively planted to the STSTW Site. Most of the greening works were implemented in 2011. The maturity of the vegetation found on site is considered as young. Marine Outer Waters District HQ is located at the northern end of this LCA. This LCA has high ability to accommodate change. The overall sensitivity of this LCA is therefore considered as low. LCA-02 Sha Tin Hoi and Shing Mun River Inshore Water LCA High This is an area of artificial river channel and coastal water lying close to the shore and enclosed to a certain degree by landmasses which create a sense of enclosure. This is a common landscape character in Hong Kong which has low ability to accommodate change. The sensitivity of this LCA is therefore considered as High. LCA-03 Ma On Shan Waterfront Residential LCA High This is an area which comprises of high rise residential buildings, schools, public open spaces. It is characterised by the mixes of landscape areas of various sizes which distribute between buildings providing passive and active recreation for the local residents. Lush amenity areas are commonly found within the landscape areas of this LCA. This is a common residential landscape in Hong Kong which has low ability to accommodate change. The sensitivity of this LCA is therefore considered as High. LCA-04 Ma On Shan Transportation Corridor LCA Low This LCA is characterised by major highways corridors in Ma On Shan. Major features include flyovers, signage gantries, interchange, traffic islands and associated roadside buffer planting areas. This type of LCA is common to Hong Kong. It has high ability to accommodate changes. The sensitivity is considered as low. LCA-05 A Kung Kok and Tai Shui Hang Miscellaneous Urban High Fringe LCA This LCA is found on the periphery of the urban area of Ma On Shan and Sha Tin. It is characterised by the scattered village houses at A Kung Kok and Tai Shui Hang, medium rise residential development of Chevalier Garden and Shatin Hospital, site offices developed along the edge of hillsides. They are transitional landscapes which are characterised by a diverse range of features, significant vegetation cover and incoherent human structures with features having little formal relationship to each other. This LCA has medium ability to accommodate change. The sensitivity of this LCA is considered as high.

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LCAs Description Sensitivity LCA-06 Nui Po Shan Upland and Hillside LCA High This LCA consists of hillsides, knolls, ridges and spurs in Nui Po Shan. It contains few human features and retains a rugged, tranquil character, with rocky outcrops or boulder fields and muted natural colours. Woodland is found at the lower slopes. This LCA has low ability to accommodate change. The sensitivity of this LCA is considered as high. LCA-07 A Kung Kok Settled Valley LCA High This LCA lies between spurs at A Kung Kok defined largely by the valley topography. Low rise institutional uses, which include Cheshire Home Shatin, Breakthrough Youth Village, Richard Bulter Chalets, Shing Mun Springs and the Neighbourhood Advice-Action Council Harmony Manor, are settled at the both sides of A Kung Kok Shan Road running along the valley. At the lower part of the valley, woodlands are found between developments and at the both sides of the A Kung Kok Shan Road. This LCA has low ability to accommodate changes. The sensitivity of this LCA is considered as high. LCA-08 Sha Tin Racecourse LCA High This LCA comprises of low-lying reclaimed land for horse racing course adjoining the Shing Mun River in Sha Tin. It is primarily characterised by racing tracks with grass lawn. Penfold Park is encircled by the tracks. This LCA has low ability to accommodate change. The overall sensitivity of this LCA is therefore considered as high. LCA-09 Ma Liu Shui Transportation Corridor LCA Low This LCA is characterised by major highways corridors in Ma Liu Shui. Major features include flyovers, signage gantries, interchange, traffic islands and associated roadside buffer planting areas. This type of LCA is common to Hong Kong. It has high ability to accommodate changes. The sensitivity is considered as low. LCA-10 Kau To Shan Residential Urban Fringe LCA High This LCA comprises of low-density residential developments at the hillsides of Kau To Sha. This landscape is characterised by individual houses or villas built on hillside with narrow winding roads and a backdrop of mature hillside vegetation. It is a fairly coherent residential landscape with a high coverage of vegetation which possesses a relatively informal and tranquil character. This type of LCA is of local importance and common to Hong Kong. It has low ability to accommodate changes. The sensitivity is considered as high. LCA-11 Tai Shui Hang Upland and Hillside LCA High This LCA consists of hillsides, knolls, ridges and spurs in Tai Shui Hang. It is generally covered in scrub vegetation with rocky outcrops or boulder fields. Woodland is found on lower slopes. It contains few human features and retains a rugged, tranquil character. This LCA has low ability to accommodate change. The sensitivity of this LCA is considered as high.

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LCAs Description Sensitivity LCA-12 Tai Shui Hang Settled Valley LCA High This LCA lies between spurs at Tai Shui Hang in close proximity to the urban areas, defined largely by the valley topography. Mui Tsz Lam Road and a natural meandering stream course are found at the valley. At the lower part of the valley, woodlands are found on both sides of the stream course and Mui Tsz Lam Road. It retains a tranquil character with little human influence. This LCA has low ability to accommodate change. The sensitivity of this LCA is considered as high. LCA-13 Nui Po Shan Peak LCA High This LCA is located at the peak of the knoll of Nui Po Shan. It has a remote, rugged and exposed character with little human influence. It is characterised by its steep terrain and muted natural colours, covered predominantly with grasses and shrubs. This LCA has low ability to accommodate change. The sensitivity of this LCA is considered as high.

10.5.3 Broad Brush Tree Survey

10.5.3.1 A board brush tree survey was carried out in accordance with the Appendix J of the EIA Study Brief to identify dominant tree species, maturity, rarity and any plant species of conservation interest, etc. which would be potentially affected to provide baseline information on the LRs and LCAs. The broad brush tree survey findings including tree survey plans and tree schedule are illustrated in Appendix 10.01.

10.5.3.2 Six tree groups were that would be potentially affected were surveyed. It is estimated that approximately 2,086 nos. of trees were surveyed within the groups. The dominant tree species include Acacia confusa, Aporusa chinensis, Casuarina equisetifolia, Cleistocalyx operculatus, Hibiscus tiliaceus, Leucaena leucocephala, Lophostemon confertus, Pinus massoniana, Schefflera heptaphylla, Sterculia lanceolata, Syzygium jambos, and Terminalia mantaly. They are generally of mature size. There is no OVT identified within the project boundary. All tree species surveyed are common in Hong Kong. There is no tree of specific conservation interest.

10.5.4 Visual Envelope

10.5.4.1 The prominent lowland location of the Study Area gives rise to a large visual envelope which extends beyond the vicinity in several directions. The visual envelope of the Project is embraced by the ridgeline of Ma On Shan to the East, the ridgeline of Kau To Shan to the West, the high-rise residential developments which include Kam Tai Court, Yan On Estate and Heng On Estate to the north and the high-rise residential developments which include Jubilee Garden, The Palazzo, Royal Ascot, Wo Che Estate, - Shatin, Yue Tin Court and Yu Chui Court to the south. The Visual Envelope of the Project is shown in Figure No. 60334056/EIA/10.31.

10.5.5 Visually Sensitive Receivers (VSRs)

10.5.5.1 Within the Visual Envelope, a number of key VSRs have been identified during construction and operation phases. They are listed, together with their baseline assessment and sensitivity, in Table 10.6 and mapped in Figure No. 60334056/EIA/10.31.

10.5.5.2 The sensitivity of VSRs is assessed in accordance with EIAO Guidance Note No. 8/2010. Key factors including type of VSRs, number of individuals within the VSRs, quality of existing view, availability of alternative views, degree of visibility, duration of view and frequency of view of the VSRs are evaluated.

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10.5.5.3 There are four types of Key VSR Types identified in the Visual Envelope of the Project. They include Residential VSRs who are living in the adjacent high rise residential developments to the East and the South of the Site and the low rise private housing on Kau To Shan, Institutional VSRs at work or at study including temporarily occupants in hotel or hospital etc., Recreational VSRs at play in open space, promenade, hiking trail and waterbody and Travelling VSRs travelling on a public thoroughfare.

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Table 10.6 Baseline VSRs and their Sensitivity Duration of Frequency of Number of Quality of Availability of Degree of View View VSR Individuals Existing View Alternative Visibility VSRs Type of VSRs (Long/ (Frequent/ Sensitivity ID. (Many/ (Good/Fair/ Views (Full/ Partial/ Medium/ Occasional/ Medium/ Few) Poor) (Yes/No) Glimpse) Short) Rare) R-01 Residents in Chevalier Garden Residential Many Good Yes Full Long Frequent High R-02 Residents in Pictorial Garden, Residential Many Good Yes Full Long Frequent High Garden Vista, Ravana Garden, etc. R-03 Residents in City One Residential Many Good Yes Full Long Frequent High R-04 Residents in Wo Che Estate Residential Many Good Yes Full Long Frequent High R-05 Residents in including Residential Many Good Yes Full Long Frequent High Jubilee Garden and The Palazzo R-06 Residents in Royal Ascot Residential Many Good Yes Full Long Frequent High R-07 Residents in Low Rise Private Residential Many Good Yes Full Long Frequent High Residential Developments at Kau To Shan including Windsor Park, Kam On Gardens, Greenland Villas, Yucca Villa, Pine Villa, Jade Villa, Windsor Heights, Evergreen Gardens, Double Haven House, Forest Hill, Greenery Villas and Shatin Knoll, etc. R-08 Residents in Potential Residential Many Good Yes Full Long Frequent High Residential Development at Lai Ping Road R-09 Residents in Ah Kung Kok Residential Few Fair No Partial Long Frequent Medium Fishermen Village R-10 Residents in the Hong Kong Residential Many Good Yes Full Long Frequent High Jockey Club Shatin Staff Quarters R-11 Residents in Sui Wo Court Residential Many Good Yes Full Long Frequent High

AECOM 10-15 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Duration of Frequency of Number of Quality of Availability of Degree of View View VSR Individuals Existing View Alternative Visibility VSRs Type of VSRs (Long/ (Frequent/ Sensitivity ID. (Many/ (Good/Fair/ Views (Full/ Partial/ Medium/ Occasional/ Medium/ Few) Poor) (Yes/No) Glimpse) Short) Rare) R-12 Residents in Kam Tai Court Residential Many Good Yes Full Long Frequent High R-13 Residents in Shek Mun Estate Residential Many Good Yes Full Long Frequent High I-01 Occupants in Tsung Tsin Institutional Medium Good Yes Partial Medium Occasional Medium Secondary School and Kowloon City Baptist Church Hay Nien Primary School I-02 Occupants in Shatin Hospital, Institutional Medium Good Yes Full Medium Occasional Medium Bradbury Hospice and Cheshire Home I-03 Occupants in Hyatt Regency Institutional Medium Good Yes Full Medium Occasional Medium Hong Kong I-04 Occupants in Chinese University Institutional Medium Good Yes Full Medium Occasional Medium of Hong Kong I-05 Occupants in Hong Kong Institutional Medium Good Yes Partial Medium Occasional Medium Science Park I-06 Occupants in Jockey Club Ti-I Institutional Medium Good Yes Partial Medium Occasional Medium College I-07 Occupants in Hong Kong Institutional Medium Good Yes Partial Medium Occasional Medium Institute of Vocational Education I-08 Occupants in the Neighbourhood Institutional Medium Good Yes Partial Medium Occasional Medium Advice-Action Council Harmony Manor I-09 Occupants in Hong Kong Sports Institutional Medium Good Yes Partial Medium Occasional Medium Institute I-10 Occupants in Shek Mun Institutional Medium Good Yes Partial Medium Occasional Medium Industrial Area I-11 Occupants in Shatin Hospital Institutional Medium Good Yes Partial Medium Occasional Medium

AECOM 10-16 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Duration of Frequency of Number of Quality of Availability of Degree of View View VSR Individuals Existing View Alternative Visibility VSRs Type of VSRs (Long/ (Frequent/ Sensitivity ID. (Many/ (Good/Fair/ Views (Full/ Partial/ Medium/ Occasional/ Medium/ Few) Poor) (Yes/No) Glimpse) Short) Rare) O-01 Recreational Users in Ma On Recreational Many Good Yes Partial Medium Occasional High Shan Promenade O-02 Recreational Users including Recreational Many Good Yes Partial Medium Occasional High cyclists along cycle track in the promenades at both sides of the Shing Mun River Channel O-03 Water based recreational users Recreational Medium Good Yes Partial Medium Occasional High in the waterbodies from Tolo Harbour to Shing Mun River Channel O-04 Recreational Users in Sha Tin Recreational Many Good Yes Partial Medium Occasional High Racecourse and Penfold Park O-05 Hikers in Walking Trails Recreational Medium Good Yes Full Medium Occasional High O-06 Recreational Users Pak Shek Recreational Many Good Yes Partial Medium Occasional High Kok Promenade T-01 Travellers along Tolo Highways Travelling Many Fair Yes Glimpse Short Rare Low T-02 Travellers along Tate’s Cairn Travelling Many Fair Yes Glimpse Short Rare Low Highways T-03 Passengers on MTR East Rail Travelling Many Fair Yes Glimpse Short Rare Low Line T-04 Travellers along Ma On Shan Travelling Many Fair Yes Glimpse Short Rare Low Road and MTR Ma On Shan Rail

AECOM 10-17 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

10.6 Landscape Impact Assessment

10.6.1 Sources of Landscape Impacts

10.6.1.1 The sources of landscape impacts in the construction phase would include:

 Decommission and demolition of the existing STSTW;

 Construction of Main Tunnel Portals and ancillary facilities at Main Portal Area at A Kung Kok Street including Administration Building, Ventilation Building No. 1, Electrical Substation No. 1, etc. and associated site formation and natural terrain mitigation works including check dams;

 Construction of Secondary Tunnel Portal and ancillary facilities at Secondary Portal Area at Mui Tsz Lam Road including Ventilation Building No. 2, Electrical Substation No.2, etc. and associated site formation;

 Construction of Ventilation Shaft and a temporary project specific magazine at Nui Po Shan and associated access road connecting to existing A Kung Kok Shan Road;

 Decommission of the temporary project specific magazine after the completion of the construction of caverns;

 Construction of an underground twin 2m dia. pipe connecting the relocated STSTW and the existing emergency outfall;

 Temporary works at Area between A Kung Kok Street and Ma On Shan Road including construction of temporary site access and the temporary stockpiling area; and

 Temporary works at Area 73 including temporary site access, staff office area, temporary stocking piling area and workshops, etc.

10.6.1.2 The sources of landscape impacts in the operation phase would include:

 Ancillary facilities at Main Portal Area at A Kung Kok Street including Main Tunnel Portals, Administration Building, Ventilation Building No. 1, Electrical Substation No. 1 and associated site formation and natural terrain mitigation works including check dams;

 Ancillary facilities at Secondary Portal Area at Mui Tsz Lam Road including Secondary Tunnel Portal, Ventilation Building No. 2 and Electrical Substation No. 2 and associated site formation; and

 Ventilation Shaft at Nui Po Shan and associated access road connecting to existing A Kung Kok Shan Road.

10.6.1.3 As the construction of tunnels and caverns are conducted below ground, it is anticipated that there would not be any potential landscape impacts.

10.6.1.4 Since the sewage and sludge treatment facilities of the CSTW and the water reclamation facilities for the non-potable use of treated effluent from the CSTW would be installed inside the caverns, there would not be any potential landscape impacts due to installation of these facilities.

10.6.2 Magnitude of Landscape Impacts

10.6.2.1 The magnitude of unmitigated landscape impacts associated with the construction phase and operational phases of the Project are assessed and described in Table 10.7.

AECOM 10-18 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Table 10.7 Magnitude of Landscape Impacts during Construction and Operation Magnitude of Change Landscape (Large/ Intermediate/ Resources/ Potential Source of ID Description of Impacts Small/ Negligible) Character Impact Areas Construc- Oper- tion ation Landscape Resources LR-01 Amenity  Decommission and Under the demolition works, Small Small Planting in the demolition of existing majority of the at-grade Existing STSTW STSTW. vegetation will be preserved where possible. Only green roofs, vertical greening attached to existing buildings and vegetation above existing underground structures will be removed. LR-02 Waterbodies in  Construction of an The outfall shall be Negligible Negligible Shing Mun River underground twin 2m constructed by trenchless and Sha Tin Hoi dia. pipe connecting the method under the Shing Mun relocated STSTW and River bed, it is anticipated that the existing emergency there would not be any outfall. temporary loss of waterbodies during construction. As the outfall is an underground structure, it is anticipated that there would not be any landscape impact on the waterbodies during operation. LR-03 Landscape Nil Nil Negligible Negligible Areas in Sha Tin Racecourse LR-04 Ma On Shan Nil Nil Negligible Negligible Promenade LR-05 Shing Mun River Nil Nil Negligible Negligible Promenade LR-06 Landscape Nil Nil Negligible Negligible Areas within Kam Tai Court LR-07 Roadside  Temporary Works at Based on a broad brush Intermediate Intermediate Planting Areas Area between A Kung estimate, approximately 190 along Ma On Kok Street and Ma On nos. of existing trees will be Shan Road Shan including removed during construction. construction of Affected tree species include temporary site access Aleurites moluccana, and the temporary Bauhinia purpurea, Bombax stockpiling area; and ceiba, Casuarina  Temporary Works at equisetifolia, Delonix regia, Area 73 including Ficus microcarpa, Leucaena temporary site access, leucocephala and Melaleuca staff office area, cajuputi subsp. Cumingiana. temporary stocking They are generally of medium piling area and form and fair amenity value. workshops, etc. Affected trees are in the range of 4-10m high, 3-9m spread and 100-600mm trunk diameter.

AECOM 10-19 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Magnitude of Change Landscape (Large/ Intermediate/ Resources/ Potential Source of ID Description of Impacts Small/ Negligible) Character Impact Areas Construc- Oper- tion ation LR-08 Woodland on  Construction and Based on a broad brush Large Large Slopes of Nui Po Operation of facilities at estimate, approximately 638 Shan Main Portal Area and nos. of existing trees will be associated natural removed during construction. terrain mitigation works Affected tree species include including check dams; Acacia confusa, Aporusa  Construction and dioica, Cleistocalyx Operation of facilities at operculata, Litchi chinensis, Secondary Portal Area; Cratoxylum cochinchinense,  Construction of a Ficus microcarpa, Macaranga temporary project tanarius, and Schefflera specific magazine and heptaphylla. They are associated site generally of medium form and formation works; fair to poor amenity value.  Decommission of the Affected trees are in the range temporary project of 3-14m high, 3-10m spread specific magazine; and and 95-800mm trunk  Construction and diameter. Operation of Ventilation Shaft at Nui Po Shan and associated access road connecting to existing A Kung Kok Shan Road. LR-09 Landscape Nil Nil Negligible Negligible Areas within Chevalier Garden LR-10 Roadside Nil Nil Negligible Negligible Planting Areas along Tolo Highways LR-11 Woodland on Nil Nil Negligible Negligible Slopes of Kau To Shan LR-12 Landscape Nil Nil Negligible Negligible Areas at Ah Kung Kok Fishermen Village LR-13 Stream Running Nil Nil Negligible Negligible along Mui Tsz Lam Road LR-14 Landscape Nil Nil Negligible Negligible Areas in Shatin Hospital LR-15 Landscape Nil Nil Negligible Negligible Areas in Hyatt Regency Hong Kong, Sha Tin LR-16 Landscape Nil Nil Negligible Negligible Areas in Marine Outer Waters District HQ and WSD Salt Water Pumping Station

AECOM 10-20 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Magnitude of Change Landscape (Large/ Intermediate/ Resources/ Potential Source of ID Description of Impacts Small/ Negligible) Character Impact Areas Construc- Oper- tion ation LR-17 Cycle Track Temporary Works at Area Approximately 300m of the Large Large connecting the 73 including temporary site cycle track will be temporary waterfront access, staff office area, alienated during the promenade and temporary stocking piling construction phase. A Kung Kok area and workshops, etc. Street LCAs LCA-01 Sha Tin  Decommission and There would be permanent Small Small Waterfront demolition of existing change in landscape Industrial LCA STSTW. character of the area under decommission and demolition works due to the clearance of aboveground and underground facilities and associated green roof and vertical greening and associated vegetation within the STSTW. All other vegetation that would not be affected by the demolition works will be retained. LCA-02 Sha Tin Hoi and  Construction of an The outfall shall be Negligible Negligible Shing Mun River underground twin 2m constructed by trenchless Inshore Water dia. pipe connecting the method under the Shing Mun LCA relocated STSTW and River bed, it is anticipated that the existing emergency there would not be impact on outfall. the waterbodies during construction. As the outfall is an underground structure, it is anticipated that there would not be any landscape impact on this LCA during operation. LCA-03 Ma On Shan Nil Nil Negligible Negligible Waterfront Residential LCA LCA-04 Ma On Shan  Temporary Works at During construction Intermediate Intermediate Transportation Area between A Kung approximately 17,700 m2 of Corridor LCA Kok Street and Ma On existing vegetation along Shan including roadside within the LCA will construction of be removed. There would be temporary site access temporary change in and the temporary character in this LCA due to stockpiling area; and the construction activities  Temporary Works at including temporary site Area 73 including assess, staff office and temporary site access, temporary stockpiling at the staff office area, Area between A Kung Kok temporary stocking Street and Ma On Shan and piling area and Area 73. workshops, etc. During operation, the irreversible unmitigated impact will be the same as the construction phase.

AECOM 10-21 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Magnitude of Change Landscape (Large/ Intermediate/ Resources/ Potential Source of ID Description of Impacts Small/ Negligible) Character Impact Areas Construc- Oper- tion ation LCA-05 A Kung Kok and  Construction and During construction, Large Large Tai Shui Hang Operation of facilities at approximately 30,100m2 and Miscellaneous Main Portal Area and 7,300m2 of woodland within Urban Fringe associated natural this LCA would be removed LCA terrain mitigation works due to the construction works including check dams; at Main Portal Area and and Secondary Portal Area.  Construction and There would be temporary Operation of facilities at change in character in this Secondary Portal Area. LCA due to the construction activities. During operation, the irreversible unmitigated impact will be the same as the construction phase. LCA-06 Nui Po Shan Nil Nil Negligible Negligible Upland and Hillside LCA LCA-07 A Kung Kok  Construction of a During construction, Large Large Settled Valley temporary project approximately 22,500m2 of LCA specific magazine and woodland within this LCA associated site would be removed due to the formation works; construction and  Decommission of the decommission of the temporary project temporary project specific specific magazine; and magazine, construction of  Construction and Ventilation Shaft at Nui Po Operation of Ventilation Shan and associated access Shaft at Nui Po Shan road. There would be and associated access temporary change in road connecting existing character in this LCA due to to A Kung Kok Shan the construction activities. Road. During operation, the irreversible unmitigated impact will be the same as the construction phase. LCA-08 Sha Tin Nil Nil Negligible Negligible Racecourse LCA LCA-09 Ma Liu Shui Nil Nil Negligible Negligible Transportation Corridor LCA LCA-10 Kau To Shan Nil Nil Negligible Negligible Residential Urban Fringe LCA LCA-11 Tai Shui Hang Nil Nil Negligible Negligible Upland and Hillside LCA LCA-12 Tai Shui Hang Nil Nil Negligible Negligible Settled Valley LCA LCA-13 Nui Po Shan Nil Nil Negligible Negligible Peak LCA

AECOM 10-22 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

10.6.3 Significance of Unmitigated Landscape Impacts

10.6.3.1 The significance of landscape impacts, before implementation of mitigation measures, in the construction and operation phases are assessed and presented in Table 10.12.

10.7 Visual Impact Assessment

10.7.1 Sources of Visual Impacts

10.7.1.1 The sources of visual impacts in the construction phase would include:

 Decommission and demolition of the existing STSTW;

 Construction of Main Tunnel Portals and ancillary facilities at Main Portal Area at A Kung Kok Street including Administration Building, Ventilation Building No. 1, Electrical Substation No. 1, etc. and associated site formation and natural terrain mitigation works including check dams;

 Construction of Secondary Tunnel Portal and ancillary facilities at Secondary Portal Area at Mui Tsz Lam Road including Ventilation Building and Electrical Substation, etc. and associated site formation;

 Construction of Ventilation Shaft and a temporary project specific magazine at Nui Po Shan and associated access road connecting to existing A Kung Kok Shan Road;

 Decommission of the temporary project specific magazine;

 Construction of an underground twin 2m dia. pipe connecting the relocated STSTW and the existing emergency outfall;

 Temporary Works at Area between A Kung Kok Street and Ma On Shan Road including construction of temporary site access and the temporary stockpiling area; and

 Temporary Works at Area 73 including temporary site access, staff office area, temporary stocking piling area and workshops, etc.

10.7.1.2 The sources of visual impacts in the operation phase would include:

 Ancillary facilities at Main Portal Area at A Kung Kok Street including Main Tunnel Portals, Administration Building, Ventilation Building No. 1, Electrical Substation No. 1, etc. and associated site formation and natural terrain mitigation works including check dams;

 Ancillary facilities at Secondary Portal Area at Mui Tsz Lam Road including Secondary Tunnel Portal, Ventilation Building No. 2 and Electrical Substation No. 2, etc. and associated site formation; and

 Ventilation Shaft at Nui Po Shan and associated access road connecting existing A Kung Kok Shan Road.

10.7.1.3 The locations and development details of permanent aboveground structures that would cause potential visual impact are summarised in Table 10.8.

AECOM 10-23 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Table 10.8 Locations and Development Details of Permanent Aboveground Structures Approximate Building Height (m) Approximate Location and Level (mPD) of the roof of Coverage (m) [Note] the structure [Note] Main Portal Area Administration Building 32m (+39mPD) 115m x 35m Ventilation Building No. 1 51m (+59mPD) 55m x 20m Electrical Substation No. 16m (+23.5mPD) 30m x 20m 1 Secondary Portal Area Ventilation Building No. 2 36m (+51mPD) 50m x 25m Electrical Substation No. 16m (+30.5mPD) 30m x 20m 2 Nui Po Shan Area Ventilation Shaft 5m (+182mPD) 12m dia. Note: Exact levels, heights and dimensions would be subject to detailed design.

10.7.1.4 As the construction of tunnels and caverns are conducted below ground, it is anticipated that there would not be any potential visual impacts.

10.7.1.5 Since the sewage and sludge treatment facilities of the CSTW and the water reclamation facilities for the non-potable use of treated effluent from the CSTW would be installed inside the caverns, there would not be any potential visual impacts due to installation of these facilities.

10.7.2 Magnitude of Visual Impacts

10.7.2.1 The magnitude of changes during construction and operation phases is assessed based on the viewing distance, compatibility of the project with the surrounding landscape, duration of changes, scale of development, reversibility of change, potential blockage of view as shown in Table 10.9.

10.7.2.2 During construction, the proposed temporary works at the existing STSTW, the areas at the both sides of Ma On Shan Road and the hillsides of A Kung Kok and along Mui Tsz Lam Road are generally at low level but cover a relatively large area. The compatibility of the Project during construction phase is considered as medium. The construction works will last for a few years and the duration of impact would be medium. The scale of development is considered large as the Project covers large temporary works areas. All permanent works including site formation constructed during construction phase are considered irreversible. Generally, there would not be any potential blockage of view during construction.

10.7.2.3 During the operation, the compatibility of the Project is considered high as there will not be any aboveground structures at STSTW and the proposed facilities at Main Portal Area, Secondary Portal Area, Ventilation Shaft and access road are relatively localised and would fit in well with the surrounding landscape and visual context. The compatibility of the Project during operation is considered as high. The duration of impact due to permanent aboveground works is long. The scale of development is medium as all the proposed permanent works are small scale and localised. All permanent works during operation phase are considered as irreversible. Generally, there would not be any potential blockage of view during operation.

10.7.2.4 It is predicted that there would be large to medium magnitude of impact on VSRs at low level who are immediately close to the Project and adjacent elevated VSRs who have an overview of the Project; and slight to insubstantial magnitude of impact on distant VSRs during construction and operation.

AECOM 10-24 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Table 10.9 Magnitude of Visual Impacts during Construction and Operation Compatibility of Magnitude of the Project with Duration of Scale of Reversibility of Potential Change the Surrounding Impacts Development Viewing Change Blockage of View (Large/ Landscape (Long/ Medium/ (Large/ Medium/ VSR Source of Distance (Yes/ No) (Full/ Partial/ Nil) Intermediate/ VSR (High/ Medium/ Short) Small) ID. Visual Impact Small/ Negligible) (m) Low) Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- ruction ion ruction ion ruction ion ruction ion ruction ion ruction ion R-01 Residents in Chevalier As listed in 50m Medium High Medium Long Large Medium No No Partial Partial Large Large Garden Para. 10.7.1 R-02 Residents in Pictorial As listed in 750m Medium High Medium Long Large Medium No No Nil Nil Small Small Garden, Garden Vista, Para. 10.7.1 Ravana Garden etc. R-03 Residents in City One As listed in 1500m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Para. 10.7.1 R-04 Residents in Wo Che As listed in 2100m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Estate Para. 10.7.1 R-05 Residents in Fo Tan As listed in 1200m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible including Jubilee Garden Para. 10.7.1 and The Palazzo R-06 Residents in Royal Ascot As listed in 700m Medium High Medium Long Large Medium No No Nil Nil Small Small Para. 10.7.1 R-07 Residents in Low Rise As listed in 300m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Private Residential Para. 10.7.1 Developments at Kau To Shan including Windsor Park, Kam On Gardens, Greenland Villas, Yucca Villa, Pine Villa, Jade Villa, Windsor Heights, Evergreen Gardens, Double Haven House, Forest Hill, Greenery Villas and Shatin Knoll, etc. R-08 Residents in Potential As listed in 900m Medium High Medium Long Large Medium No No Nil Nil Small Small Residential Development Para. 10.7.1 at Lai Ping Road R-09 Residents in Ah Kung As listed in 100m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Kok Fishermen Village Para. 10.7.1 R-10 Residents in The Hong As listed in 1600m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Kong Jockey Club Shatin Para. 10.7.1 Staff Quarters R-11 Residents in Sui Wo As listed in 2000m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Court Para. 10.7.1

AECOM 10-25 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Compatibility of Magnitude of the Project with Duration of Scale of Reversibility of Potential Change the Surrounding Impacts Development Viewing Change Blockage of View (Large/ Landscape (Long/ Medium/ (Large/ Medium/ VSR Source of Distance (Yes/ No) (Full/ Partial/ Nil) Intermediate/ VSR (High/ Medium/ Short) Small) ID. Visual Impact Small/ Negligible) (m) Low) Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- ruction ion ruction ion ruction ion ruction ion ruction ion ruction ion R-12 Residents in Kam Tai As listed in 150m Medium High Medium Long Large Medium No No Nil Nil Large Large Court Para. 10.7.1 R-13 Residents in Shek Mun As listed in 1300m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Estate Para. 10.7.1 I-01 Occupants in Tsung Tsin As listed in 100m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Secondary School and Para. 10.7.1 Kowloon City Baptist Church Hay Nien Primary School I-02 Occupants in Shatin As listed in 250m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Hospital, Bradbury Para. 10.7.1 Hospice and Cheshire Home I-03 Occupants in Hyatt As listed in 200m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Regency Hong Kong Para. 10.7.1 I-04 Occupants in Chinese As listed in 600m Medium High Medium Long Large Medium No No Nil Nil Small Small University of Hong Kong Para. 10.7.1 I-05 Occupants in Hong Kong As listed in 1500m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Science Park Para. 10.7.1 I-06 Occupants in Jockey As listed in 1800m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Club Ti-I College Para. 10.7.1 I-07 Occupants in Hong Kong As listed in 2000m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Institute of Vocational Para. 10.7.1 Education I-08 Occupants in The As listed in 100m Medium High Medium Long Large Medium No No Nil Nil Small Small Neighbourhood Advice- Para. 10.7.1 Action Council Harmony Manor I-09 Occupants in Hong Kong As listed in 1000m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Sports Institute Para. 10.7.1 I-10 Occupants in Shek Mun As listed in 1200m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Industrial Area Para. 10.7.1 I-11 Occupants in Shatin As listed in 800m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Hospital Para. 10.7.1 O-01 Recreational Users in Ma As listed in 50m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate On Shan Promenade Para. 10.7.1

AECOM 10-26 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Compatibility of Magnitude of the Project with Duration of Scale of Reversibility of Potential Change the Surrounding Impacts Development Viewing Change Blockage of View (Large/ Landscape (Long/ Medium/ (Large/ Medium/ VSR Source of Distance (Yes/ No) (Full/ Partial/ Nil) Intermediate/ VSR (High/ Medium/ Short) Small) ID. Visual Impact Small/ Negligible) (m) Low) Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- Const- Operat- ruction ion ruction ion ruction ion ruction ion ruction ion ruction ion O-02 Recreational Users As listed in 10m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate including cyclists along Para. 10.7.1 cycle track in the promenades at the both sides of the Shing Mun River Channel O-03 Water based recreational As listed in 20m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate users in the waterbodies Para. 10.7.1 from Tolo Harbour to Shing Mun River Channel O-04 Recreational Users in As listed in 300m Medium High Medium Long Large Medium No No Nil Nil Small Small Sha Tin Racecourse and Para. 10.7.1 Penfold Park O-05 Hikers in Walking Trails As listed in 300m Medium High Medium Long Large Medium No No Nil Nil Small Small Para. 10.7.1 O-06 Recreational Users Pak As listed in 1400m Medium High Medium Long Large Medium No No Nil Nil Negligible Negligible Shek Kok Promenade Para. 10.7.1 T-01 Travellers along Tolo As listed in 100m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Highways Para. 10.7.1 T-02 Travellers along Tate’s As listed in 100m Medium High Medium Long Large Medium No No Nil Nil Large Large Cairn Highways Para. 10.7.1 T-03 Passengers on MTR East As listed in 120m Medium High Medium Long Large Medium No No Nil Nil Intermediate Intermediate Rail Line Para. 10.7.1 T-04 Travellers along Ma On As listed in 10m Medium High Medium Long Large Medium No No Nil Nil Large Large Shan Road and MTR Ma Para. 10.7.1 On Shan Rail

AECOM 10-27 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

10.7.3 Significance of Unmitigated Visual Impacts

10.7.3.1 The significance of visual impacts, before the implementation of mitigation measures, in the construction phase and operation phase are assessed in accordance with the methodology set out in Table 10.2 of the Report and described in Table 10.13.

10.7.4 Recommended Photomontage Viewpoints

10.7.4.1 Computer generated photomontages will be prepared to illustrate the potential landscape and visual impact of the Project. The criteria for the selection of representative viewpoints for photomontages include: -

 the viewpoints which cover the aboveground structure viewed from major public viewpoint represents key VSRs or VSR groups who would be potentially affected by the proposed Project; and

 the viewpoints which shall be able to represent the worst case scenarios and demonstrate the compatibility of the aboveground structures to the adjacent visual context and illustrate the visual effect during Day 1 without mitigation measures, Day 1 with mitigation measures and Year 10 with mitigation measures.

10.7.4.2 Based on the location of the proposed aboveground structures, proposed viewpoint from key representative VSRs are mapped in Figure No. 60334056/EIA/10.31 and the computer generated photomontages to illustrate the potential landscape and visual impact of the Project is shown in Figure Nos. 60334056/EIA/10.51 to 10.56. They are described as follow:

 Viewpoint P1 near Tsung Tsin Secondary School and Kowloon City Baptist Church Hay Nien Primary School to illustrate the potential landscape and visual impact due to the works at Main Portal Area;

 Viewpoint P2 from Ma On Shan Country Trail to illustrate the potential landscape and visual impact due to the works at Secondary Portal Area;

 Viewpoint P3 near The Neighbourhood Advice-Action Council Harmony Manor to illustrate the potential landscape and visual impact due to the works at the Ventilation Shaft, temporary project specific magazine site and associated access road;

 Viewpoint P4 from Ah Kung Kok Fishermen Village to illustrate the potential landscape and visual impact due to the works at the Main Portal Area;

 Viewpoint P5 from Waterfront Promenade along Shing Mun River to illustrate the potential landscape and visual impact due to the works at the Main Portal Area from a distant view; and

 Viewpoint P6 from Tate’s Cairn Highways to illustrate the potential landscape and visual impact due to the works at the Main Portal Area from an elevated highway.

10.8 Landscape and Visual Mitigation Measures

10.8.1.1 The proposed engineering works have been designed to minimise any potential landscape and visual impact as much as possible. Unavoidably, there would be some potential landscape and visual impact. Landscape and Visual Mitigation Measures are therefore proposed to alleviate the potential adverse landscape and visual impact.

10.8.1.2 The proposed landscape and visual mitigation measures in the construction and operation are listed in Tables 10.10 and 10.11 below, together with an indication of Funding,

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Implementation and Maintenance Agencies and illustrated in Figure Nos. 60334056/EIA/10.41 to 10.46.

Table 10.10 Landscape and Visual Mitigation Measures for Construction Phase Implement- Funding ID No. Landscape and Visual Mitigation Measures action Agency Agency CM1 Preservation of Existing Vegetation DSD DSD All the existing Trees to be retained and not to be affected by the Project shall be carefully protected during construction accordance with DEVB TCW No. 7/2015 - Tree Preservation and the latest Guidelines on Tree Preservation during Development issued by GLTM Section of DevB. Any existing vegetation in landscaped areas and natural terrain not to be affected by the Project shall be carefully preserved. CM2 Transplanting of Affected Trees DSD DSD Trees unavoidably affected by the works shall be transplanted as far as possible in accordance with DEVB TCW No. 7/2015 - Tree Preservation and the latest Guidelines on Tree Transplanting issued by GLTM Section of DevB. CM3 Compensatory Tree Planting DSD DSD Any Trees to be felled under the Project shall be compensated in accordance with DEVB TCW No. 7/2015 - Tree Preservation. For trees to be compensated on slopes, the guidelines for tree planting stipulated in GEO Publication No. 1/2011 will be followed. CM4 Control of Night-time Lighting Glare DSD DSD Any lighting provision of the construction works at night shall be carefully control to prevent light overspill to the nearby VSRs and into the sky. CM5 Erection of Decorative Screen Hoarding DSD DSD Decorative Hoarding, which is compatible with the surrounding settings, shall be erected during construction to minimise the potential landscape and visual impacts due to the construction works and activities. CM6 Management of Construction Activities and DSD DSD Facilities The facilities and activities at works sites and areas, which include site office, temporary storage areas, temporary works etc., shall be carefully managed and controlled on the height, deposition and arrangement to minimise any potential adverse landscape and visual impacts. CM7 Reinstatement of Temporarily Disturbed DSD DSD Landscape Areas All hard and soft landscape areas disturbed temporarily during construction due to temporary excavations, temporary works sites and works areas shall be reinstated to equal or better quality, to the satisfaction of the relevant Government Departments.

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Table 10.11 Landscape and Visual Mitigation Measures for Operation Phase Implement- Maintenance/ ID Landscape and Visual Mitigation Funding action Management No. Measures Agency Agency Agency OM1 Tree and Shrub Planting at the DSD DSD DSD Temporary Project Magazine Site after Completion of Engineering Works The Temporary Project Magazine Site shall be planted with tree and shrub planting after completion of works. OM2 Aesthetically pleasing design of DSD DSD DSD Aboveground Structures The Aboveground Structures of the Project including Tunnel Portals, Administration Buildings, Electrical Substations and Ventilation Shaft in the regard of layouts, forms, materials and finishes shall be sensitively designed so as to blend in the structures to the adjacent landscape and visual context. OM3 Aesthetically pleasing design of DSD DSD HyD Highways Structures Highways Structures proposed shall be sensitively designed in the regard of form, tonal colour and texture so as to minimise any potential adverse landscape and visual impact. OM4 Reprovision of Cycle Track DSD DSD HyD The affected cycle track shall be reprovided after construction on a like to like basis. OM5 Provision of Green Roof DSD DSD DSD Green Roof shall be proposed to enhance the landscape quality of the Aboveground Structures including Administration Buildings and Electrical Substations and mitigate any potential adverse visual impact on adjacent VSRs. OM6 Provision of Buffer Planting DSD DSD DSD Buffer Planting shall be provided at the perimeter of the Main and Secondary Portal Areas to screen and soften the proposed Aboveground Structures. OM7 Hydroseeding on the disturbed DSD DSD Lands ground surface after demolition Department works prior to future (LandsD) or redevelopment of the existing future STSTW development agent in

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Implement- Maintenance/ ID Landscape and Visual Mitigation Funding action Management No. Measures Agency Agency Agency Hydroseeding will be provided as a existing temporary landscape and visual STSTW* mitigation measure for disturbed ground surface after demolition of aboveground and underground facilities in the existing STSTW in case the redevelopment of the STSTW site could not commence immediately after the completion of demolition works. OM8 Woodland Mix Planting on Soil DSD DSD DSD Slopes Woodland Mix Planting, tree whips and/or shrub mix, shall be applied to new soil cut and fill slopes in accordance with technical guidelines set out in GEO Publication No. 1/2011 at the tunnel portals and site formation works for Access Road to Nui Po Shan Ventilation Shaft and Temporary Project Magazine Site. * Remarks: The future development agent has yet to be identified as there is no confirmed planning and schedule for the development of the vacated site. Nevertheless, the arrangement of maintenance/management agencies shall follow the prevailing government practices as given in DEVB TCW No. 6/2015 or its version.

10.8.1.3 The construction phase mitigation measures listed above shall be implemented as early as possible in order to minimise the landscape impacts in the construction stage. The operation phase mitigation measures listed above shall be adopted during the detailed design and be built as part of the construction works at the last stage of the construction period so that they are in place at the date of commissioning of the Project. However, it should be noted that the full effect of the soft landscape mitigation measures would not be appreciated for several years. Photomontages of the proposed project without and with mitigation measures illustrating the appearance after 10 years of the proposed works are shown in Figure Nos. 60334056/EIA/10.51 to 10.56.

10.9 Residual Impact

10.9.1 Significance of Residual Landscape Impacts

10.9.1.1 The potential significance of the landscape impacts during the construction and operation phases, before and after mitigation, is provided in Table 10.12. The assessment follows the proposed methodology and assumes that the appropriate mitigation measures identified in Tables 10.10 and 10.11 above would be implemented, and the full effect of the soft landscape mitigation measures would be realised after ten years.

10.9.1.2 Under the proposed decommissioning and demolition works for the existing STSTW, the existing buildings and underground structures will be removed. Majority of the existing at- grade vegetation will be preserved in-situ. Green roofs, vertical greening attached to existing buildings and vegetation above existing underground structures and utilities will be removed during demolition. The magnitude of impact is considered small. The sensitivity of the Amenity Planting in the Existing STSTW (LR-01) is medium and the resultant unmitigated landscape impact on this LR would be slight during construction and operation. With the implementation of proposed mitigation measures, including preservation of

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existing vegetation, transplanting of affected trees, compensatory tree planting and hydroseeding on the disturbed ground surface after demolition works, there would not be any discernible net gain or loss to LR-01 with proposed mitigation measures. It is predicted that there would be slight residual impact on LR-01 during construction, insubstantial residual impact during day 1 and year 10 of operation.

10.9.1.3 Under the construction of temporary works at area between A Kung Kok Street and Ma On Shan Road including construction of temporary site access and the temporary stockpiling area, it is estimated that approximately 190 nos. of existing trees and 17,700m2 of vegetation in the Roadside Planting Areas along Ma On Shan Road (LR-07) would be affected during the construction. Affected trees species include Aleurites moluccana, Bauhinia purpurea, Bombax ceiba, Casuarina equisetifolia, Delonix regia, Ficus microcarpa, Leucaena leucocephala and Melaleuca cajuputi subsp. Cumingiana. They are generally of medium form and fair amenity value. The affected trees are in the range of 4-10m high, 3-9m spread and 100-600mm trunk diameter. The sensitivity of this LR is medium and the magnitude of impact is intermediate. The resultant unmitigated landscape impact on this LR would be moderate during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees, compensatory tree planting, reinstatement of temporarily disturbed landscape areas, there would not be any discernible net gain or loss in area to LR-07 with proposed mitigation measures. Based on a broad brush estimate, approximate 190 nos. heavy standard trees can be compensated within the reinstated landscape area of this LR. It is predicted that there would be moderate residual impact during construction, slight residual impact during day 1 of operation and insubstantial residual impact on LR-07 when the proposed compensatory planting and roadside amenity planting become mature during year 10 of the operation.

10.9.1.4 Based on a broad brush estimate, approximately 638 nos. of existing trees and 59,900m2 existing vegetation will be removed on Slopes of Nui Po Shan (LR-08) for the construction at Main Portal Area, Secondary Portal Area, Ventilation Shaft at Nui Po Shan and associated access road, and site formation for Temporary Project Magazine. Affected tree species include Acacia confusa, Aporusa dioica, Cleistocalyx operculata, Litchi chinensis, Cratoxylum cochinchinense, Ficus microcarpa, Macaranga tanarius, and Schefflera heptaphylla. They are generally of medium form and fair to poor amenity value. Affected trees are in the range of 3-14m high, 3-10m spread and 95-800mm trunk diameter. The sensitivity of this LR is high and the magnitude of impact is large. The resultant unmitigated landscape impact on this LR would be substantial during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees and compensatory tree planting, reinstatement of temporarily disturbed landscape areas, tree and shrub planting at the Temporary Project Magazine Site after construction, provision of green roof, buffer planting and woodland mix planting on new soil slopes. Based on a broad brush estimate, approximately 140 nos. heavy standard trees can be compensated in Temporary Project Magazine Site (within approximate 3,900m2 compensatory woodland mix planting) after Completion of Engineering Works and approximately 10,000 nos. of tree whips can be compensated on the woodland mix planting areas on new slopes and the reinstatement planting areas (approximately 30,800m2 planting areas) of this LR. As such, there would be a net permanent loss of 25,200m2 of LR-08 due to the Project. It is predicted that there would be substantial residual impact during construction, moderate residual impact during day 1 of operation after implementation of landscape works and slight residual impact on LR-08 when the proposed compensatory planting, buffer planting and woodland mix planting become mature during year 10 of the operation.

10.9.1.5 During construction, approximately 300m of the cycle track connecting the waterfront promenade at Shing Mun River Channel and A Kung Kok Street will be temporarily alienated in order to form a temporary access road connecting to the works area at Area 73. The sensitivity of this LR is medium and the magnitude of impact is large. The resultant unmitigated landscape impact on the cycle track would be moderate during construction and operation. With the implementation of proposed mitigation measures, there would not be any net gain or loss to this landscape resource with proposed mitigation measures. It

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is predicted that there would still be moderate residual impact during construction and the residual impact would be reduced to insubstantial after the affected cycle track is reprovided.

10.9.1.6 Apart from LR-01, LR-07, LR-08 and LR-17, it is predicted that there would not be any discernable change in other LRs identified within the study boundary of the Project.

10.9.1.7 Under the Project, it is anticipated that there would be permanent change in Sha Tin Waterfront Industrial LCA (LCA-01) due to the decommission and demolition of the existing STSTW including clearance of aboveground and underground facilities and associated green roof and vertical greening and associated vegetation during construction. Majority of existing vegetation at-grade will be retained. The sensitivity of this LCA is low. The magnitude of impact is small. The resultant unmitigated landscape impact on this LCA would be slight during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees, compensatory tree planting, control of night-time lighting glare, erection of decorative screen hoarding, management of construction activities and facilities and hydroseeding on the disturbed ground surface after demolition works, it is predicted that there would be slight residual impact during construction, insubstantial residual impact during day 1 and year 10 of the operation.

10.9.1.8 It is predicted that there would be a temporary change in Ma On Shan Transportation Corridor LCA (LCA-04) due to the construction of temporary site assess, temporary staff office, stockpiling and associated works during construction phase. It is estimated that approximate 17,700 m2 of existing vegetation along roadsides in the LCA will be removed during construction. The magnitude of impact is intermediate. The sensitivity of this LCA is low. The resultant unmitigated landscape impact on this LCA would be moderate during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees, compensatory tree planting, control of night-time lighting glare, erection of decorative screen hoarding, management of construction activities and facilities, reinstatement of temporarily disturbed landscape areas, reprovisioning of the affected cycle track and provision of roadside amenity planting, it is predicted that there would be moderate residual impact during construction, slight residual impact during day 1 of operation and insubstantial residual impact on LCA-04 when the proposed compensatory planting and roadside amenity planting become mature during year 10 of the operation.

10.9.1.9 It is predicted that there would be a temporary change in A Kung Kok and Tai Shui Hang Miscellaneous Urban Fringe LCA (LCA-05) due to the construction activities at Main Portal Area and Secondary Portal and associated temporary works and permanent change in landscape character due to the operation of the Project. It is estimated that approximate 37,400m2 woodland on the hillside slope at Nui Po Shan will be lost during construction. The magnitude of impact is large. The sensitivity of this LCA is high. The resultant unmitigated landscape impact on this LCA would be substantial during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees, compensatory tree planting, control of night-time lighting glare, erection of decorative screen hoarding, management of construction activities and facilities, reinstatement of temporarily disturbed landscape areas, aesthetically pleasing design of aboveground structures, provision of green roof on aboveground structures, provision of buffer planting and woodland mix planting on new soil slopes, it is predicted that there would be substantial residual impact during construction, moderate residual impact during day 1 of operation after implementation of landscape works and slight residual impact on LCA-05 when the proposed compensatory planting, buffer planting and woodland mix planting become mature during year 10 of the operation.

10.9.1.10 It is predicted that there would be a temporary change in A Kung Kok Settled Valley LCA (LCA-07) due to the construction of Ventilation Shaft, temporary Magazine Site and associated access road and permanent change in the landscape character due to the operation of the Project. It is estimated that approximate 22,500m2 woodland on the valley of Nui Po Shan will be lost during construction. The magnitude of impact is large. The

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sensitivity of this LCA is high. The resultant unmitigated landscape impact on this LCA would be substantial during construction and operation. With the implementation of proposed mitigation measures, including preservation of existing vegetation, transplanting of affected trees, compensatory tree planting, control of night-time lighting glare, erection of decorative screen hoarding, management of construction activities and facilities, reinstatement of temporarily disturbed landscape areas, tree and shrub planting of the Temporary Magazine Site after construction, aesthetically pleasing design of the Ventilation Shaft and retaining structures for the access road, provision woodland mix planting on new soil slopes, it is predicted that there would be substantial residual impact during construction, moderate residual impact during day 1 of operation after implementation of landscape works and slight residual impact on LCA-07 when the proposed compensatory planting, tree and shrub planting on the Temporary Magazine Site and woodland mix planting on new soil slopes become mature during year 10 of the operation.

10.9.1.11 Apart from LCA-01, LCA-04, LCA-05 and LCA-07, it is predicted that there would not be any discernable change in other LCAs identified within the study boundary of the Project.

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Table 10.12 Significance of Landscape Impacts during Construction and Operation Phases Impact Significance Magnitude of Change Significance of Residual Impact Sensitivity before Mitigation (Negligible, Small, (Insubstantial, Slight, Recommended (Insubstantial, Slight, Moderate, ID Landscape Resource / (Low, Medium, High) Intermediate, Large) Moderate, Substantial) Mitigation Substantial) No. Character Areas Measures Operation Construction Operation Construction Operation Construction Operation Construction Day 1 Year 10 Landscape Resources LR-01 Amenity Planting in the Medium Medium Small Small Slight Slight CM1, CM2, CM3, Slight Insubstantial Insubstantial Existing STSTW OM7 LR-02 Waterbodies in Shing Mun High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial River and Sha Tin Hoi LR-03 Landscape Areas in Sha Tin High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Racecourse LR-04 Ma On Shan Promenade High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial LR-05 Shing Mun River Promenade High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial LR-06 Landscape Areas within Kam High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Tai Court LR-07 Roadside Planting Areas Medium Medium Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Moderate Slight Insubstantial along Ma On Shan Road CM7 LR-08 Woodland on Slopes of Nui High High Large Large Substantial Substantial CM1, CM2, CM3, Substantial Moderate Slight Po Shan CM7, OM1, OM5, OM6, OM8 LR-09 Landscape Areas within High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Chevalier Garden LR-10 Roadside Planting Areas Medium Medium Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial along Tolo Highways LR-11 Woodland on Slopes of Kau Medium Medium Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial To Shan LR-12 Landscape Areas at Ah Kung Medium Medium Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Kok Fishermen Village LR-13 Stream Running along Mui Low Low Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Tsz Lam Road LR-14 Landscape Areas in Shatin Medium Medium Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Hospital LR-15 Landscape Areas in Hyatt High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Regency Hong Kong, Sha Tin

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Impact Significance Magnitude of Change Significance of Residual Impact Sensitivity before Mitigation (Negligible, Small, (Insubstantial, Slight, Recommended (Insubstantial, Slight, Moderate, ID Landscape Resource / (Low, Medium, High) Intermediate, Large) Moderate, Substantial) Mitigation Substantial) No. Character Areas Measures Operation Construction Operation Construction Operation Construction Operation Construction Day 1 Year 10 LR-16 Landscape Areas in Marine Medium Medium Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Outer Waters District HQ and WSD Salt Water Pumping Station LR-17 Cycle Track connecting the Medium Medium Large Large Moderate Moderate CM7 and OM4 Moderate Insubstantial Insubstantial waterfront promenade and A Kung Kok Street Landscape Character Area LCA-01 Sha Tin Waterfront Industrial Low Low Small Small Slight Slight CM1, CM2, CM3, Slight Insubstantial Insubstantial LCA CM4, CM5, CM6, CM7, OM7 LCA-02 Sha Tin Hoi and Shing Mun High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial River Inshore Water LCA LCA-03 Ma On Shan Waterfront High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Residential LCA LCA-04 Ma On Shan Transportation Low Low Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Moderate Slight Insubstantial Corridor LCA CM4, CM5, CM6, CM7, OM4 LCA-05 A Kung Kok and Tai Shui High High Large Large Substantial Substantial CM1, CM2, CM3, Substantial Moderate Slight Hang Miscellaneous Urban CM4, CM5, CM6, Fringe LCA CM7, OM2, OM5, OM6, OM8 LCA-06 Nui Po Shan Upland and High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Hillside LCA LCA-07 A Kung Kok Settled Valley High High Large Large Substantial Substantial CM1, CM2, CM3, Substantial Moderate Slight LCA CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM8 LCA-08 Sha Tin Racecourse LCA High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial LCA-09 Ma Liu Shui Transportation Low Low Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Corridor LCA LCA-10 Kau To Shan Residential High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Urban Fringe LCA

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Impact Significance Magnitude of Change Significance of Residual Impact Sensitivity before Mitigation (Negligible, Small, (Insubstantial, Slight, Recommended (Insubstantial, Slight, Moderate, ID Landscape Resource / (Low, Medium, High) Intermediate, Large) Moderate, Substantial) Mitigation Substantial) No. Character Areas Measures Operation Construction Operation Construction Operation Construction Operation Construction Day 1 Year 10 LCA-11 Tai Shui Hang Upland and High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial Hillside LCA LCA-12 Tai Shui Hang Settled Valley High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial LCA LCA-13 Nui Po Shan Peak LCA High High Negligible Negligible Insubstantial Insubstantial Not Required Insubstantial Insubstantial Insubstantial

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10.9.2 Significance of Residual Visual Impacts

10.9.2.1 The potential significance of the Visual impacts during the construction and operation phases, before and after mitigation, is provided in Table 10.13. The assessment followed the proposed methodology and assumed that the appropriate mitigation measures identified in Tables 10.10 and 10.11 above would be implemented, and the full effect of the visual mitigation measures should be realised after ten years.

10.9.2.2 Photomontages illustrating the potential visual impact during operation with and without mitigation measures from representative VSRs due to the Project are shown in Figure Nos. 60334056/EIA/10.51 to 10.56. The potential visual impacts are assessed and summarised as below:

 Viewpoint P1 near Tsung Tsin Secondary School and Kowloon City Baptist Church Hay Nien Primary School (I-01) which is an at-grade view approximately 100m form the Main Portal Area representing the potential visual impact on the VSRs to the north. The layout and massing of the above ground structures at the Main Portal Area have been carefully planned and designed. A variation of building profile is proposed with the taller Ventilation Building at the hillside and lower Administration Building and Electrical Substation near the development edge. The step down profile can avoid the wall effect and fits in well with the natural slope profile of the hillside. With the implementation of proposed mitigation measures which include aesthetically pleasing architectural design of the aboveground structures at Main Portal Area, provision of green roof on administration and ventilation buildings, provision of buffer planting at the edge of the Main Portal Area and woodland mix planting on the soil slopes of the portals, it is considered that the proposed facilities at the Main Portal Area are visually compatible with the adjacent hillside landscape and visual setting of the area.

 Viewpoint P2 is taken from the Ma On Shan Country Trail (O-05) which is approximately 300m from the Secondary Portal Area. A step down building profile with the tallest Ventilation Building at the hillside and lower Electrical Substation near the development edge is proposed. The step down building profile can avoid the wall effect and fits in well with the natural slope profile of the hillside. With the implementation of proposed mitigation measures which include aesthetically pleasing architectural design of the aboveground structures at Secondary Portal Area, provision of green roof on ventilation building, provision of buffer planting at the edge of the Secondary Portal Area and woodland mix planting on the soil slopes of the portals, it is considered that the proposed facilities at the Secondary Portal Area are visually compatible with the adjacent hillside landscape and visual setting of the area.

 Viewpoint P3 from The Neighbourhood Advice-Action Council Harmony Manor (I-08) to illustrate the potential visual impact due to the works at the Ventilation Shaft and associated access road. The access road has been designed to follow the existing topography of the Nui Po Shan to minimise extent of slope works and retaining structures. It is anticipated that there would be potential adverse visual impact due to the loss of existing vegetation and the creation of new retaining structures on Nui Po Shan. With the implementation of proposed mitigation measures which include application of texture and finishes to the retaining wall and ventilation shafts, provision of buffer planting along the retaining structures of the access road and the Ventilation Shaft, provision of woodland mix planting on soil slopes, it is considered that the proposed Ventilation Shaft and associated access road are visually compatible with the adjacent hillside landscape and visual setting of the area.

 Viewpoint P4 from Ah Kung Kok Fishermen Village which is an at-grade view approximately 100m away from the proposed Administration Building representing the potential visual impact on the Residents in Ah Kung Kok Fishermen Village (R-09). The layout and massing of the Main Portal Area have been carefully planned and designed. A step down building profile is proposed to match the slope profile of the existing natural terrain. With the implementation of proposed mitigation measures which include aesthetically pleasing architectural design of the aboveground structures at Main Portal

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Area, provision of green roof on administration and ventilation building, provision of buffer planting at the edge of the Main Portal Area and woodland mix planting on the soil slopes of the portals, it is considered that the proposed Administration Building is visually compatible with the adjacent hillside landscape and visual setting of the area.

 Viewpoint P5 from Waterfront Promenade along Shing Mun River which is an at-grade view approximately 700m away from the Main Portal Area representing potential visual impact on Recreational Users along Shing Mun River (O-02) and other VSRs from the south-east of the site. The proposed building profile fits in well with the adjacent natural slope profile. With the implementation of proposed mitigation measures which include aesthetically pleasing architectural design of the aboveground structures at Main Portal Area, provision of green roof on administration and ventilation building, provision of buffer planting at the edge of the Main Portal Area and woodland mix planting on the soil slopes of the portals, it is considered that the proposed facilities at the Main Portal Area are visually compatible with the adjacent hillside landscape and visual setting of the area.

 Viewpoint P6 from Tate's Cairn Highways which is an elevated view approximately 200m away from the Main Portal Area representing potential visual impact on Travellers along Tate's Cairn Highways (T-02) and other distant VSRs from the west of the site. The proposed building profile has preserved the view to the ridge line of Nui Po Shan behind. With the implementation of proposed mitigation measures which include aesthetically pleasing architectural design of the aboveground structures at Main Portal Area, provision of green roof on administration and ventilation buildings, provision of buffer planting at the edge of the Main Portal Area and woodland mix planting on the soil slopes of the portals, it is considered that the proposed facilities at the Main Portal Area are visually compatible with the adjacent hillside landscape and visual setting of the area.

10.9.2.3 As a whole, there would be moderate residual impact during construction and day 1 of operation on immediately adjacent elevated VSRs R-01 and R-12 who have full overview of the project. It is predicted the residual impact on these VSRs would be reduced to slight when the proposed landscape works become mature during year 10 of operation.

10.9.2.4 There would be slight residual impact during construction and day 1 of operation on elevated VSRs further away and VSRs at low level who are close to the Project including R-02, R-06 R-07, R-08, R-09, I-01, I-02, I-03, I-08, O-01, O-02, O-03, O-04, O-05, T-01, T- 02, T-03, and T-04. It is predicted the residual impact on these VSRs would be reduced to insubstantial when the proposed landscape works become mature during year 10 of operation.

10.9.2.5 It is predicted that there would be insubstantial residual visual impact during construction and operation on long distant VSRs including R-03, R-04, R-05, R-10, R-11, R-13, I-04, I- 05, I-06, I-07, I-09, I-10, I-11 and O-06.

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Table 10.13 Significance of Visual Impacts during Construction and Operation Phases Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 R-01 Residents in High High Large Large Substantial Substantial CM1, CM2, CM3, Moderate Moderate Slight Chevalier CM4, CM5, CM6, Garden CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 R-02 Residents in High High Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Pictorial CM4, CM5, CM6, Garden, Garden CM7, OM1, OM2, Vista, Ravana OM3, OM4, OM5, Garden etc. OM6, OM7, OM8 R-03 Residents in High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial City One CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 R-04 Residents in Wo High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Che Estate CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 R-05 Residents in Fo High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Tan including CM4, CM5, CM6, Jubilee Garden CM7, OM1, OM2, and The OM3, OM4, OM5, Palazzo OM6, OM7, OM8 R-06 Residents in High High Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Royal Ascot CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8

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Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 R-07 Residents in High High Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Low Rise CM4, CM5, CM6, Private CM7, OM1, OM2, Residential OM3, OM4, OM5, Developments OM6, OM7, OM8 at Kau To Shan including Windsor Park, Kam On Gardens, Greenland Villas, Yucca Villa, Pine Villa, Jade Villa, Windsor Heights, Evergreen Gardens, Double Haven House, Forest Hill, Greenery Villas and Shatin Knoll, etc. R-08 Residents in High High Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Potential CM4, CM5, CM6, Residential CM7, OM1, OM2, Development at OM3, OM4, OM5, Lai Ping Road OM6, OM7, OM8 R-09 Residents in Ah Medium Medium Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Kung Kok CM4, CM5, CM6, Fishermen CM7, OM1, OM2, Village OM3, OM4, OM5, OM6, OM7, OM8 R-10 Residents in the High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Hong Kong CM4, CM5, CM6, Jockey Club CM7, OM1, OM2, Shatin Staff OM3, OM4, OM5, Quarters OM6, OM7, OM8

AECOM 10-41 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 R-11 Residents in Sui High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Wo Court CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 R-12 Residents in High High Large Large Substantial Substantial CM1, CM2, CM3, Moderate Moderate Slight Kam Tai Court CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 R13 Residents in High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Shek Mun CM4, CM5, CM6, Estate CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-01 Occupants in Medium Medium Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Tsung Tsin CM4, CM5, CM6, Secondary CM7, OM1, OM2, School and OM3, OM4, OM5, Kowloon City OM6, OM7, OM8 Baptist Church Hay Nien Primary School I-02 Occupants in Medium Medium Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Shatin Hospital, CM4, CM5, CM6, Bradbury CM7, OM1, OM2, Hospice and OM3, OM4, OM5, Cheshire Home OM6, OM7, OM8 I-03 Occupants in Medium Medium Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Hyatt Regency CM4, CM5, CM6, Hong Kong CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-04 Occupants in Medium Medium Small Small Slight Slight CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Chinese CM4, CM5, CM6, University of CM7, OM1, OM2, Hong Kong OM3, OM4, OM5, OM6, OM7, OM8

AECOM 10-42 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 I-05 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Hong Kong CM4, CM5, CM6, Science Park CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-06 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Jockey Club Ti-I CM4, CM5, CM6, College CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-07 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Hong Kong CM4, CM5, CM6, Institute of CM7, OM1, OM2, Vocational OM3, OM4, OM5, Education OM6, OM7, OM8 I-08 Occupants in Medium Medium Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial the CM4, CM5, CM6, Neighbourhood CM7, OM1, OM2, Advice-Action OM3, OM4, OM5, Council OM6, OM7, OM8 Harmony Manor I-09 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Hong Kong CM4, CM5, CM6, Sports Institute CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-10 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Shek Mun CM4, CM5, CM6, Industrial Area CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 I-11 Occupants in Medium Medium Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Shatin Hospital CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8

AECOM 10-43 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 O-01 Recreational High High Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Users in Ma On CM4, CM5, CM6, Shan CM7, OM1, OM2, Promenade OM3, OM4, OM5, OM6, OM7, OM8 O-02 Recreational High High Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Users including CM4, CM5, CM6, cyclists along CM7, OM1, OM2, cycle track in OM3, OM4, OM5, the promenades OM6, OM7, OM8 at the both sides of the Shing Mun River Channel O-03 Water based High High Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial recreational CM4, CM5, CM6, users in the CM7, OM1, OM2, waterbodies OM3, OM4, OM5, from Tolo OM6, OM7, OM8 Harbour to Shing Mun River Channel O-04 Recreational High High Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Users in Sha CM4, CM5, CM6, Tin Racecourse CM7, OM1, OM2, and Penfold OM3, OM4, OM5, Park OM6, OM7, OM8 O-05 Hikers in High High Small Small Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Walking Trails CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 O-06 Recreational High High Negligible Negligible Insubstantial Insubstantial CM1, CM2, CM3, Insubstantial Insubstantial Insubstantial Users Pak Shek CM4, CM5, CM6, Kok Promenade CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8

AECOM 10-44 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

Impact Significance Residual Impact Significance Threshold Magnitude of Change AFTER Mitigation Receptor Sensitivity Threshold BEFORE (Negligible, Small, Mitigation Recommended (Insubstantial, Slight, Moderate, (Low, Medium, High) ID. No. Key VSRs Intermediate, Large) (Insubstantial, Slight, Mitigation Substantial) Measures Moderate, Substantial) Operation Construction Construction Operation Construction Operation Construction Operation DAY 1 YEAR 10 T-01 Travellers along Low Low Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Tolo Highways CM4, CM5, CM6, CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 T-02 Travellers along Low Low Large Large Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Tate’s Cairn CM4, CM5, CM6, Highways CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 T-03 Passengers on Low Low Intermediate Intermediate Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial MTR East Rail CM4, CM5, CM6, Line CM7, OM1, OM2, OM3, OM4, OM5, OM6, OM7, OM8 T-04 Travellers along Low Low Large Large Moderate Moderate CM1, CM2, CM3, Slight Slight Insubstantial Ma On Shan CM4, CM5, CM6, Road and MTR CM7, OM1, OM2, Ma On Shan OM3, OM4, OM5, Rail OM6, OM7, OM8

AECOM 10-45 August 2016 Sha Tin Cavern Sewage Treatment Works EIA Report

10.10 Environmental Monitoring and Audit

10.10.1.1 The detailed landscape and engineering design of the Project shall be undertaken so as to ensure compliance with the landscape and visual mitigation measures described in Section 10.8.

10.10.1.2 A baseline review shall be undertaken at the commencement of the construction contracts to update the status of landscape resources, character areas and VSRs.

10.10.1.3 Implementation of the recommended mitigation measures would be regularly audited during construction phase. Details of EM&A requirement are discussed in the separate EM&A Manual.

10.11 Conclusion

10.11.1.1 It is considered that the residual landscape and visual impact is acceptable with mitigation measures implemented during construction and operation phases.

AECOM 10-46 August 2016