Appendix

Environmental Impact [E(TA)31] Assessment Ordinance (Cap. 499)

Section 5(7)

Environmental Impact Assessment Study Brief No. ESB-101/2002

Project Title: Drainage Improvements in Southern Lantau

Name of Applicant: Drainage Services Department

(hereinafter known as the “Applicant”)

1. BACKGROUND

1.1 An application (No. ESB-101/2002) for an Environmental Impact Assessment (EIA) study brief under section 5(1) of the Environmental Impact Assessment Ordinance (EIAO) was submitted by the Applicant on 22 March 2002 with a Project Profile (No. PP-165/2002) for the captioned proposed project.

1.2 The proposed project includes the following major items of works:

(i) Pak Ngan Heung River with location shown in Figure 1:

(a) construction of approximately 140 m four-cell culvert flood bypass under the emergency vehicle access (EVA) for the hairpin meander leading downstream of the access bridge;

(b) construction of approximately 130m of channel by using grasscrete and masonry lined banks with natural bed both at the upstream and downstream of the flood bypass culvert and reprovision of the EVA and the 3.5 m wide access road; and

(c) extension and enlarging of existing U-channel of approximately 120 m to reroute the runoff from Butterfly Hill around the low lying area of Ling Tsui Tau Tsuen into the Pak Ngan Heung River.

(ii) Tai Tei Tong River with location shown in Figure 2: construction of 350 m of channel using grasscrete and masonry lined banks with natural bed from Mui Wo primary School to the rivers confluence.

(iii) Luk Tei Tong 2 River with location shown in Figure 3: construction of 400m of channel using grasscrete and masonry lined banks with natural bed.

(iv) Luk Tei Tong River with location shown in Figure 3 : Extension of existing gabion channelisation downstream to River Silver confluence using a grasscrete and masonry lined channel with natural bed.

1.3 The proposed project is a Designated Project under Schedule 2 Part I of the EIAO and requires an environmental permit under the EIAO for its construction and operation.

1.4 Pursuant to section 5(7)(a) of the EIAO, the Director of Environmental Protection (the Director) issues this EIA study brief to the Applicant to carry out an EIA study.

1.5 The purpose of this EIA study is to provide information on the nature and extent of environmental impacts arising from the construction and operation of the proposed project and related activities taking place concurrently. This information will contribute to decisions by the Director on:

(i) the overall acceptability of any adverse environmental consequences that are likely to arise as a result of the proposed project;

(ii) the conditions and requirements for the detailed design, construction and operation of the proposed project to mitigate against adverse environmental consequences wherever practicable; and

(iii) the acceptability of residual impacts after the proposed mitigation measures are implemented.

2. OBJECTIVES OF THE EIA STUDY

2.1 The objectives of the EIA study are as follows:

(i) to describe the proposed project and associated works together with the requirements for carrying out the proposed project;

(ii) to identify and describe the elements of the community and environment likely to be affected by the proposed project and/or likely to cause adverse impacts to the proposed project, including both the natural and man-made environment and the associated environmental constraints;

(iii) to identify and quantify emission sources and determine the significance of impacts on sensitive receivers and potential affected uses;

(iv) to identify any potential impacts from point and non-point pollution sources on the identified water systems and sensitive receivers during the construction and operation stages;

(v) to identify and quantify any potential losses and damage to flora, fauna and wildlife habitats;

(vi) to identify any potential impacts to the historical, archaeological and cultural resources and propose measures to mitigate these impacts;

(viii) to propose the provision of infrastructure or mitigation measures so as to minimize pollution, environmental disturbance and nuisance during construction and operation of the proposed project;

(ix) to identify, predict and evaluate the residual (i.e. after practicable mitigation) environmental impacts and the cumulative effects expected to arise during the construction and operation phases of the proposed project in relation to the sensitive receivers and potential affected uses;

(x) to identify, assess and specify methods, measures and standards, to be included in the detailed design, construction and operation of the proposed project, which are necessary to mitigate these environmental impacts and reducing them to acceptable levels;

(xi) to investigate the extent of secondary environmental impacts that may arise from the proposed mitigation measures and to identify constraints associated with the mitigation measures recommended in the EIA study, as well as the provision of any necessary modification;

(xii) to design and specify the environmental monitoring and audit requirements, if required, to ensure the implementation and the effectiveness of the environmental protection and pollution control measures adopted; and

(xiii) to consider alternatives with a view to avoiding or minimizing the potential environmental impacts to the sensitive uses, and to compare the environmental benefits and dis-benefits of each of the different drainage channel design and to provide reasons for selecting the preferred design(s) and to describe the part environmental factors played in the selection.

3. DETAILED REQUIREMENTS OF THE EIA STUDY

3.1 The Purpose

The purpose of this study brief is to scope the key issues of the EIA study. The Applicant has to demonstrate in the EIA report that the criteria in the relevant sections of the Technical Memorandum on the EIA Process of the EIAO (hereinafter referred to as the TM) are fully complied with.

3.2 The Scope

The scope of this EIA study covers the proposed project mentioned in section 1.2 above. The EIA study shall address the likely key issues described below; together with any key issues identified during the course of the EIA study.

(i) the potential impacts on the drainage system, hydrology, ground water, and water quality on the Luk Tei Tong freshwater marsh during construction and operation phases of the proposed project,

(ii) the potential aquatic and terrestrial ecological impacts on the Luk Tei Tong freshwater marsh and Butterfly Hill Conservation Area arising from the construction works, including loss of habitats, removal of vegetation and disturbance to animals of the proposed project;

(iii) the potential noise and dust impacts to sensitive receivers during the construction phases, in particular at areas near the school(s), village houses and other residential dwellings of the proposed project; and

(iv) the potential impacts on the cultural heritage sites, in particular Chung Hau Archaeological Site, and the two historical watch towers at Luk Tei Tong and Chung Hau, if they are affected by the construction works of the proposed project.

3.3 Consideration of the Alternative Drainage Channel Designs and Construction Methods

3.3.1 The Alternative Drainage Channel Designs

The project has potential to cause loss of habitat at the Luk Tei Tong freshwater marsh and the associated riparian habitat and the Butterfly Hill. The Applicant should justify in the EIA report why the drainage channel design stated in the project Profile has been selected among other possible alternatives, including environmental and other considerations. A comparison of the environmental benefits and dis-benefits of the possible drainage channel designs shall be made.

3.3.2 Consideration of Alternative Construction Methods and Sequences of Works

Having regard to the cumulative effects of the construction period and the possible adverse construction impacts to the affected sensitive receivers along the rivers, the EIA study shall also explore alternative construction methods and sequences of works for the proposed project with a view to avoiding and minimising adverse environmental impacts to the maximum practicable extent. A comparison of the environmental benefits and dis-benefits of applying different construction methods shall be made. The Applicant shall take into account the environmental implications of potential flooding at downstream areas in wet seasons during construction phases in the comparison.

3.3.3 Taking into the comparisons in sections 3.3.1 and 3.3.2 above, the Applicant shall recommend/justify the adoption of the drainage channel design that will avoid or minimize adverse environmental impacts.

3.4 Technical Requirements

The Applicant shall conduct the EIA study to address all environmental aspects of the activities as described in the scope as set out above and subject to the findings under section 3.3. The EIA study shall include the following technical requirements on specific impacts:-

3.4.1 Ecological Impact (Both Terrestrial and Aquatic)

3.4.1.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing ecological impact as stated in Annexes 8 and 16 of the TM respectively. The assessment area for the purpose of terrestrial ecological assessment shall include all areas within 500 m distance from the site boundary of the works areas, or the area likely to be impacted by the proposed project. For aquatic ecology, the assessment area shall be the same as for the water quality assessment described in section 3.4.2.2.

3.4.1.2 (i) The project involves channelization of natural rivers, which will disturb the bottom sediments, alter water movement of the four rivers (Pak Ngan Heung River, Tai Tei Tong River, Luk Tei Tong River, and Luk Tei Tong 2 River) and affect the riparian habitats. Therefore important habitats including the Luk Tei Tong freshwater marsh, which has a direct ecological linkage with the Luk Tei Tong river system, and Butterfly Hill and the flora and fauna living in or associated with the rivers may be affected by the project. As such, the ecological baseline of the four rivers and the affected areas should be properly established, the environmental impact from the project thoroughly assessed and effective mitigation measures suggested in the EIA report;

(ii) In the ecological impact assessment, the Applicant shall examine the flora, fauna and other components of the ecological habitats within the assessment area. The aim shall be to protect, maintain or rehabilitate the natural environment. The assessment shall identify and quantify as far as possible the potential ecological impacts on the areas such as natural river, riparian, wetland and woodland habitats and the associated wildlife arising from the proposed project, including the impacts of any haul roads, temporary work sites and access.

3.4.1.3 The assessment shall include the following:

(i) A review of the findings of relevant studies and collating all the available information regarding the ecological characters of the assessment area;

(ii) Evaluation of the information collected and identification of any information gap relating to the assessment of potential ecological impacts to the terrestrial and aquatic environment;

(iii) Carrying out the necessary ecological field surveys (the duration of which shall be at least 9 months and shall cover both the wet and dry seasons) and investigations to verify the information collected, fill the information gaps identified and fulfil the objectives of the EIA study;

(iv) Establishing the general ecological profile and describing the characteristics of each habitat found; major information to be provided shall include:

(a) description of the physical environment;

(b) habitat maps of suitable scale (1:1000 to 1:5000) showing the types and locations of habitats in the assessment area;

(c) description of the ecological characteristics of each habitat type including size, vegetation type, species present, dominant species found, species diversity and abundance, community structure, seasonality and inter-dependence of the habitats and species, and presence of any features of ecological importance;

(d) representative colour photos of each habitat type and of any important ecological features identified;

(e) species found that are rare, endangered and/or listed under local legislation, international conventions for conservation of wildlife/habitats or red data books;

(v) Investigation and description of the existing wildlife uses of relevant habitats with special attention to those wildlife groups and habitats of conservation interests; including:

(a) woodlands;

(b) natural stream courses and associated stream fauna;

(d) vertebrates (e.g. avifauna, mammals, fish, herpetofauna);

(e) macro-invertebrates (e.g. dragonflies, butterflies);

(f) and any other habitats and wildlife groups identified as having special conservation interests such as Romer’s Free Frog by this EIA study;

(vi) Description of all recognized sites of conservation importance in the proposed project site and its vicinity and assessment of whether these sites will be affected by the proposed project or not;

(vii) Using suitable methodology, identification and quantification as far as possible of any direct, indirect, on-site, off-site, primary, secondary and cumulative ecological impacts such as destruction of habitats, reduction of species abundance/diversity, loss of feeding grounds, reduction of ecological carrying capacity, habitat fragmentation; and in particular habitat loss and disturbance to stream and wetland-dependent wildlife groups during the construction stage;

(viii) Evaluation of the significance and acceptability of the ecological impacts identified using well-defined criteria;

(ix) Recommendations for all possible alternatives, such as modifications of layout and design and practicable mitigation measures to avoid, minimize and/or compensate for the adverse ecological impacts identified, such as reinstatement of habitats temporarily affected by the proposed project to its original state and if possible with some enhancement features;

(x) Evaluation of the feasibility and effectiveness of the recommended mitigation measures and definition of the scope, type, location, implementation arrangement, resources requirement, subsequent management and maintenance of such measures;

(xi) The EIA study shall aim at maintaining the natural streams in the study area if the ecological field survey as described in (iii) above suggested that they are ecologically important streams.;

(xii) The EIA study shall address the impact on aquatic wildlife in streams due to this project. The study period should include June/July as high summer and wet season, October as passage migration period, and January to April as dry season and spring migration period. The habitants of the streams / rivers, i.e. aquatic wildlife, will be firstly affected by the project;

(xiii) The EIA study shall address the habitat loss, in particular at freshwater marsh at Luk Tei Tong, and the hydrology due to the captioned project

(xiv) Determination and quantification as far as possible of the residual ecological impacts after implementation of the proposed mitigation measures;

(xv) Evaluation of the severity and acceptability of the residual ecological impacts using well-defined criteria;

(xvi) A review of the need for and recommendation for any ecological monitoring programme is required; and

(xvii) Planning on the ecological monitoring after channelization of the three rivers should be included in the future EIA to assess the successfulness of recolonization of flora and fauna in the disturbed rivers and riparian habitats. Contingency habitat rehabilitation plan should also be considered in the EIA, in case wildlife recolonization is shown to be unsuccessful.

3.4.2 Water Quality Impact

3.4.2.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing water pollution as stated in Annexes 6 and 14 of the TM respectively.

3.4.2.2 The assessment area for the water quality impact assessment shall include all areas within 500 m from the project boundary, the area shall include but not limited to the Luk Tei Tong freshwater marsh. This assessment area could be extended to include other areas such as stream courses and the associated water system in the vicinity being impacted during the course of the EIA study if found justifiable.

3.4.2.3 The Applicant shall identify and analyse all physical, chemical and biological disruptions of fresh water or ground water system(s), catchment area(s), stormwater channel(s) and coastal water(s) arising from the construction and operation of the proposed project.

3.4.2.4 The Applicant shall include (1) the construction phase impacts on water quality at the site (2) operational phase impacts on water quality at Luk Tei Tong freshwater marsh and downstream of the site due to the natural process of siltation, flows and water velocity, and re-suspensions of sediments. Essentially, the assessment shall address the following:

(i) Collection and review of background information on the existing and planned water systems and their respective catchments and sensitive receivers which might be affected by the proposed project during construction and operation;

(ii) Characterization of water and sediment quality of the water systems and respective catchments and sensitive receivers which might be affected by the proposed project during construction and operation based on existing information or appropriate site survey and tests;

(iii) Identification and analysis of all existing and planned activities and beneficial uses related to the water system(s) and identification of all water sensitive receivers. The Applicant shall refer to, inter alia, those developments and uses earmarked on the relevant outline zoning plans, outline development plans and layout plans;

(iv) Identification of pertinent water and sediment quality objectives and establishment of other appropriate water and sediment quality criteria or standards for the water system(s) and all the sensitive receivers in (i) & (iii) above;

(v) Review the specific construction methods and configurations, and operation of the proposed project. Identification of any alteration of existing water courses, natural streams/ponds, flow regimes, ground water levels and catchment types or areas;

(vi) Identification, analysis and quantification of all existing, likely future water and sediment pollution sources, including point discharges and non-point sources to surface water runoff and analyse these in relation to the provision and adequacy of future facilities to reduce such pollution in terms of capacity and levels of treatment; evaluation and quantification through appropriate site investigation and tests to the pollution loading intercepted by the proposed project and discharged into the Luk Tei Tong freshwater marsh and the downstream water bodies; evaluation and quantification of the flows and pollution loads collected and discharged into the existing and planned downstream water courses and drainage systems before and after operation of the proposed project;

(vii) Establishment and provision of a pollution load inventory on the quantities and characteristics of all existing and likely future water pollution sources identified above. Field investigation and laboratory tests shall be conducted as appropriate to fill in any major information gaps;

(viii) Cumulative impacts due to all other committed and planned projects and activities or pollution sources in the area along the identified water system(s) and sensitive receivers shall be identified and assessed;

(ix) Assessment and evaluation of any potential water quality impacts on the identified water system(s), respective catchments and sensitive receivers due to sewage arising from the construction stage. Any effluent generated will require appropriate collection, treatment and disposal to within standards and objectives and criteria established in (iv) above;

(x) Assessment and evaluation of any potential stormwater and construction runoff impacts on the water system(s), respective catchments and sensitive receivers during construction stages as to reduce the water and sediment quality impacts to within standards, objectives and criteria established in (iv) above. Best management practices shall be recommended to reduce any potential impacts arising from stormwater runoff during both construction and operation phases;

Waste Water and Non-point Sources Pollution

(xi) Proposals for effective and practicable infrastructure upgrading or provision, water pollution prevention and mitigation measures to be implemented during the construction and operation stages to reduce the water quality impacts to within acceptable levels of standards. Requirements to be incorporated in the project contract document shall also be proposed;

(xii) Evaluation and quantification of residual impacts on the water system(s) and the sensitive receivers with regard to the appropriate water quality criteria, standards or guidelines.

3.4.2.5 The EIA report shall propose measures to avoid the improved drainage channels to be used to collect and divert the grey water from the local villages and discharge it to some previously unpolluted streams in the nearby area.

3.4.3 Construction Air Quality Impact

3.4.3.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing construction air quality impact as stated in section 1 of Annex 4 and Annex 12 of the TM respectively.

3.4.3.2 The assessment area for the construction air quality impact assessment shall generally be defined by a distance of 500 m from the boundary of the proposed project works sites, yet it may be extended depending on the circumstances and the scale of the proposed project.

3.4.1.3 The Applicant shall assess the air pollutant concentrations with reference to the Guidelines for Local-Scale Air Quality Assessment Using Models issued by the Environmental Protection Department (EPD) of the HKSAR dated March, 2000.

3.4.1.4 The air quality assessment shall include the following:

Background and analysis of activities

(xviii) Provide background information relating to air quality issues relevant to the proposed project, e.g. description of the types of activities of the proposed project.

(xix) Give an account, where appropriate, of the consideration/measures that had been taken into consideration in the planning of the proposed project to abate the air pollution impact. That is, the Applicant shall consider alternative construction methods/phasing programmes to minimize the construction air and dust impacts.

(xx) Present the background air quality levels in the assessment area for the purpose of evaluating the cumulative construction air quality impacts.

Identification of Air Sensitive Receivers (ASRs) and examination of emission/dispersion characteristics

(xxi) Identify and describe representative existing and planned/committed ASRs that would likely be affected by the proposed project, including those earmarked on the relevant Outline Zoning Plans, Development Permission Area Plans, Outline Development Plans and Layout Plans. The Applicant shall select the assessment points of the identified ASRs such that they represent the worst impact point on these ASRs. A map showing the location and a description including the name of the buildings, their uses and height of the selected assessment points shall be given. The separation distances of these ASRs from the nearest emission sources should also be given.

(v) Provide an exhaustive list of air pollutant emission sources, including any nearby emission sources, which are likely to have impact on the proposed project. Examples of construction stage emission sources include stock piling, concrete batching and vehicular movements on unpaved haul roads on site and so forth. Confirmation of the validity of the assumptions and the magnitude of the activities (e.g. volume of construction materials handled) shall be obtained from the relevant government/authorities and documented.

Impact Assessment

(vi) The Applicant shall follow the requirements of the Air Pollution Control (Construction Dust) Regulation in dust control to ensure construction dust impacts are controlled to within the relevant standards as stipulated in section 1 of Annex 4 of the TM. A monitoring and audit program during the construction stage shall be implemented to verify the effectiveness of the control measures and to ensure that the construction dust levels are brought under control.

(vii) If the Applicant anticipates a significant construction dust impact that will likely cause exceedance of the recommended limits in the TM at the ASRs despite incorporation of the dust control measures stated in (vi) above, a quantitative assessment shall be carried out to evaluate the construction dust impact at the identified ASRs. The Applicant shall follow the methodology below when carrying out the assessment.

Quantitative Assessment Methodology

(viii) The Applicant shall apply the general principles enunciated in the modelling guidelines while making allowance for the specific characteristic of the proposed project. Specific methodology must be documented to such level of detail (preferably with tables and diagrams) to allow the readers of the EIA report to grasp how the model is set up to simulate the situation at hand without referring to the model input files. Details of the calculation of the emission rates of air pollutants and a map showing the emission sources for input to the modelling shall be presented in the EIA report. The Applicant must ensure consistency between the text description and the model files at every stage of submission. In case of doubt, prior agreement of the general methodology between the Applicant and the Director is advised.

(ix) The Applicant shall identify the key/representative air pollutant parameters related to construction activities (types of pollutants and the averaging time concentration) to be evaluated and provide explanation for choosing these parameters for the assessment of the impact of the proposed project.

(x) The Applicant shall calculate the cumulative air quality impact at the identified ASRs and compare these results against the criteria set out in section 1 of Annex 4 in the TM. The predicted air quality impacts (both unmitigated and mitigated) shall be presented in the form of summary tables and pollution contours, for comparison with relevant air quality standards and for examination of the land use implications of these impacts. Plans of suitable scale should be used for presentation of pollution contours for determining buffer distances required.

Mitigating Measures for Non-compliance

(xi) The Applicant shall propose remedies and mitigating measures, where the predicted air quality impact exceeds the criteria set in section 1 of Annex 4 in the TM. These measures and any constraints on future land use planning shall be agreed with the relevant government departments/authorities and documented. The Applicant shall demonstrate quantitatively that the resultant impacts after incorporation of proposed mitigating measures will comply with the criteria stipulated in section 1 of Annex 4 in the TM.

Submission of Model Files

(xii) All input and output file(s) of the model run(s) shall be submitted to the Director in electronic format.

3.4.4 Construction Noise Impact

3.4.4.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing construction noise impact as stated in Annexes 5 and 13 of the TM respectively.

3.4.4.2 The construction noise impact assessment shall include the following:

(i) Determination of Assessment Area

The assessment area for the construction noise impact assessment shall include all areas within 300 m from the project boundary. Subject to the agreement of the Director, the assessment area could be reduced accordingly if the first layer of Noise Sensitive Receivers (NSRs), closer than 300 m from the project boundary, provides acoustic shielding to those NSRs further from the site.

(ii) Provision of Background Information and Existing Noise Levels

The Applicant shall provide all background information relevant to the proposed project, including relevant previous or current studies. Unless necessary for planning standards, it will not be necessary to investigate the existing noise levels.

(iii) Identification of NSRs

(a) The Applicant shall refer to Annex 13 of the TM when identifying the NSRs. The NSRs shall include all existing NSRs and all planned/committed noise sensitive developments and uses earmarked on the relevant outline zoning plans, outline development plans, layout plans and other published plans, including any land use and development applications approved by Town Planning Board. For planned noise sensitive land uses without committed layouts, the Applicant shall work out indicative site layouts based on the relevant planning parameters.

(b) The Applicant shall select assessment points to represent all identified NSRs for carrying out quantitative noise assessment described below. The assessment points shall be agreed with the Director prior to the quantitative noise assessment. A map showing the location and description such as name of building, use, and floors of each and every selected assessment point shall be given.

(iv) Provision of an Emission Inventory of the Noise Sources

The Applicant shall provide an inventory of noise sources including construction equipment for construction noise assessment. Confirmation of the validity of the inventory shall be obtained from the relevant government departments/authorities.

(v) Construction Noise Assessment

(a) The Applicant shall carry out assessment of noise impact from construction (excluding percussive piling) during day time, i.e. 7 a.m. to 7 p.m., on weekdays other than general holidays in accordance with the methodology stipulated in sections 5.3 and 5.4 of Annex 13 of the TM. The criteria in Table 1B of Annex 5 of the TM shall be adopted in the assessment.

(b) To minimize the construction noise impact, alternative construction methods (e.g. to replace percussive piling) shall be explored and recommended as far as practicable. If the unmitigated construction noise levels are found to exceed the relevant criteria, the Applicant shall propose practicable direct mitigation measures (including movable barriers, enclosures, quieter alternative methods, re-scheduling and restricting hours of operation of noisy task) to minimize the impact. If the mitigated noise levels still exceed the relevant criteria, the duration of the noise exceedance shall be given.

(c) The applicant shall confirm whether construction work during restricted hours is required. If affirmative, the applicant shall evaluate whether construction works in restricted hours as defined under the Noise Control Ordinance (NCO) are feasible or not in the context of programming construction works. Reference shall be made to the relevant technical memoranda issued under the NCO. Regardless of the results of the construction noise impact assessment for restricted hours, the Noise Control Authority will process the Construction Noise Permit application, if necessary, based on the NCO, the relevant technical memoranda issued under the NCO and the contemporary conditions/situations. This aspect should be explicitly stated in the noise chapter and the conclusions and recommendations chapter in the EIA report.

3.4.5 Waste Management Implications

3.4.5.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing waste management implications as stated in Annexes 7 and 15 of the TM respectively.

3.4.5.2 The assessment of waste management implications shall cover the following:

(i) Analysis of Activities and Waste Generation

Identification of the quantity, quality and timing of the waste arising as a result of the construction and operation activities, based on the sequence and duration of these activities;

(ii) Proposal for Waste Management

(a) Prior to considering the disposal options for various types of wastes, opportunities for reducing waste generation and on-site or off-site re-use shall be fully evaluated. Measures, which can be taken in the planning and design stages e.g. by modifying the design approach and in the construction stage for maximizing waste reduction shall be separately considered;

(b) After considering all the opportunities for reducing waste generation and maximizing re-use, the types and quantities of the wastes required to be disposed of as a consequence shall be estimated and the disposal options for each type of waste shall be described in detail. Pre-treatment processes for slurry before disposal shall be addressed in details. The disposal method recommended for each type of waste shall take into account the result of the assessment in (c) below; and

(c) The impact caused by handling (including labelling, packaging & storage), collection, and disposal of wastes shall be addressed in detail and appropriate mitigation measures be proposed. This assessment shall cover the following areas:

- potential hazard;

- air and odour emissions;

- noise;

- wastewater discharge; and

- public transport.

3.4.6 Illustration Materials

The Applicant shall submit design proposal in the form of cross sectional plans, perspective drawings and photomontages, where appropriate, that covers the form and external finishes of the proposed treatment works, and provision of landscape design proposals.

3.4.7 Impact on Cultural Heritage

3.4.7.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing the cultural heritage impacts as stated in section 2 of Annex 10 and sections 1 and 2 of Annex 19 of the TM respectively.

3.4.7.2 The cultural heritage impact assessment shall include the following:

(i) The Applicant shall identify all cultural heritage sites that might be adversely affected by the proposed project. The inventory shall include known and unknown archaeological sites, pre-1950 buildings and structures, post-1950 buildings and structure of high architectural and historical significance, and historic landscape features (e.g. sites of historical events, sites providing a significant historical record, a setting for buildings/monuments of architectural/archaeological importance, historic field patterns, tracks, fish ponds and cultural elements (i.e. fung shui woodlands and clan graves).

(ii) The Applicant shall assess the extent to which those cultural heritage sites might be directly and indirectly affected and recommend possible alternatives (such as modification of layout and design of the proposed project) and practicable monitoring and mitigation measures to be agreed with the Director to avoid or keep the adverse impacts on the cultural heritage sites to the minimum. Besides, a checklist including all the affected cultural heritage sites, impacts identified, recommended mitigation measures as well as the implementation agent and period shall also be included in the EIA report.

(iii) In case where the sources of information prove to be inadequate or where the proposed project area has not been adequately studied before, field surveys and site investigations shall be conducted to assemble the necessary data. Regarding the assessment study on cultural heritage, it shall be conducted by qualified persons with proven records to archaeological and historical building research works in Hong Kong. The archaeological survey shall be carried out by a qualified archaeologist who shall obtain a License from the Antiquity Authority before undertaking the field evaluation under the Antiquities and Monuments Ordinance (Cap.53).

(iv) The information of all the identified archaeological sites, historic buildings and structures including their ownership, historical background, 1:1000 scale location plans, photographs and the like together with the nearby work areas shall be provided. Special attention shall be paid to the Chung Hau Archaeological Site, historic buildings and structures in the vicinity of the proposed project including the following historic building: the two historical watch towers at Luk Tei Tong and Chung Hau

4. ENVIRONMENTAL MONITORING & AUDIT (EM&A) REQUIREMENTS

4.1 The Applicant shall identify in the EIA study whether there is any need for EM&A activities during the construction and operation phases of the proposed project and, if affirmative, to define the scope of the EM&A requirements for the proposed project in the EIA study.

4.2 Subject to the confirmation of the EIA study findings, the Applicant shall comply with the requirements as stipulated in Annex 21 of the TM. The Applicant shall also propose real-time reporting of monitoring data for the proposed project through a dedicated internet website.

4.3 The Applicant shall prepare a project implementation schedule, in the form of a checklist as shown in Appendix 1 attached to this study brief, containing all the EIA study recommendations and mitigation measures with reference to the implementation programme.

5. SUMMARY OF ENVIRONMENTAL OUTCOMES

5.1 The EIA report shall contain a summary of the key environmental outcomes arising from the EIA study, including the population and environmentally sensitive areas protected, environmentally friendly designs recommended, key environmental problems avoided, and environmental benefits of environmental protection measures recommended.

6. DURATION OF VALIDITY

6.1 The EIA study brief is valid for 36 months after the date of issue. If the EIA study does not commence within this period, the Applicant shall apply to the Director for a fresh EIA study brief before commencement of the EIA study.

7. REPORT REQUIREMENTS

7.1 In preparing the EIA report, the Applicant shall refer to Annex 11 of the TM for the contents of an EIA report. The Applicant shall also refer to Annex 20 of the TM which stipulates the guidelines for the review of an EIA report.

7.2 The Applicant shall supply the Director with the following number of copies of the EIA report and the executive summary:

(i) 50 copies of the EIA report in English and 80 copies of the executive summary (each bilingual in both English and Chinese) as required under section 6(2) of the EIAO to be supplied at the time of application for approval of the EIA report.

(ii) when necessary, any addendum to the EIA report and the executive summary submitted in (i) above as required under section 7(1) of the EIAO, to be supplied upon advice by the Director for public inspection.

(iii) 20 copies of the EIA report in English and 50 copies of the executive summary (each bilingual in both English and Chinese) with or without Addendum as required under section 7(5) of the EIAO, to be supplied upon advice by the Director for consultation with the Advisory Council on the Environment.

7.3 The Applicant shall, upon request, make additional copies of the above documents available to the public, subject to payment by the interested parties of full costs of printing.

7.4 In addition, to facilitate the public inspection of the EIA report via the EIAO Internet Website, the Applicant shall provide electronic copies of both the EIA report and the executive summary prepared in Hyper Text Markup Language (HTML) (version 4.0 or later) and in Portable Document Format (PDF)(version 4.0 or later), unless otherwise agreed by the Director. For the HTML version, a content page capable of providing hyperlinks to each section and sub-section of the EIA report and the executive summary shall be included in the beginning of the document. Hyperlinks to all figures, drawings and tables in the EIA report and executive summary shall be provided in the main text from where the respective references are made. All graphics in the report shall be in interlaced GIF format unless otherwise agreed by the Director.

7.5 The electronic copies of the EIA report and the executive summary shall be submitted to the Director at the time of application for approval of the EIA report.

7.6 When the EIA report and the executive summary are made available for public inspection under section 7(1) of the EIAO, the content of the electronic copies of the EIA report and the executive summary must be the same as the hard copies and the Director shall be provided with the most up to date electronic copies.

7.7 To promote environmentally friendly and efficient dissemination of information, both hard copies and electronic copies of future EM&A reports recommended by the EIA study shall be required and their format shall be agreed by the Director.

8. OTHER PROCEDURAL REQUIREMENTS

8.1 If there is any change in the name of the Applicant for this EIA study brief, the Applicant mentioned in this study brief must notify the Director immediately.

8.2 If there is any key change in the scope of the proposed project mentioned in section 1.2 of this EIA study brief and in Project Profile (No. PP-165/2002), the Applicant must seek confirmation from the Director in writing on whether or not the scope of issues covered by this EIA study brief can still cover the key changes, and the additional issues, if any, that the EIA study must also address. If the changes to the proposed project fundamentally alter the key scope of the EIA study brief, the Applicant shall apply to the Director for a fresh EIA study brief.

-- End of Study Brief --

EIA Study Brief No. ESB-101/2002

April 2002

Environmental Assessment and Noise Division

Environmental Protection Department

EIA Ref.	EM&A Ref.	Recommended Mitigation Measures	Objectives of the Recommended Measure & Main Concern to Address	Who to implement the measure?	Location of the measure	When to implement the measure?	What requirements or standards for the measure to achieve?