1. BACKGROUND

1.1 An application (No. ESB-038/1999) 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 10 August 1999 with a project profile (No. PP-057/1999).

1.2 The Applicant proposes to carry out road widening and junction improvement works to increase the junction capacities of Hing Wah Street with Cheung Sha Wan Road, Lai Chi Kok Road and Tung Chau Street. The project is a Designated Project under Schedule 2, A.1, of the EIAO: "A road which is an expressway, trunk road, primary distributor road or district distributor road including new roads, and major extensions or improvements to existing roads".

1.3 Hing Wah Street between Cheung Sha Wan Road and Lai Chi Kok Road is a one-way southbound road whereas Hing Wah Street between Lai Chi Kok Road and Tung Chau Street is a dual one-lane road at present. It is planned to widen it into a dual three-lane carriageway in future to tie in with the West Kowloon Reclamation road network system (Figure 1).

1.4 Pursuant to section 5(7)(a) of the EIAO, the Director of Environmental Protection (the Director) issues this Environmental Impact Assessment (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 designated projects 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 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;

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

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

(v) 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 project in relation to the sensitive receivers and potential affected uses;

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

(vii) to investigate the extent of side-effects of proposed mitigation measures that may lead to other forms of impacts;

(viii) to identify constraints associated with the mitigation measures recommended in the EIA study;

(ix) 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

(x) to identify, within the study area, any individual project(s) that fall under Schedule 2 of the EIA Ordinance; to ascertain whether the findings of this EIA study have adequately addressed the environmental impacts of those projects; and where necessary, to identify the outstanding issues that need to be addressed in any further detailed EIA studies.

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 Environmental Impact Assessment Process of the Environmental Impact Assessment Ordinance (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 sections 1.2 and 1.3 above. The EIA study shall address the likely key issues described below together with any other key issues identified during the course of the EIA study :

(i) the air quality impacts arising from the operation phase, in particular any potential impacts on the existing wholesale poultry market;

(ii) the noise impacts arising from construction and operation of the project.

3.3 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. The EIA study shall include the following technical requirements on specific impacts:

3.3.1 Air Quality Impact

3.3.1.1 The Applicant shall follow the criteria and guidelines for evaluating and assessing air quality impact as stated in Annexes 4 and 12 of the Technical Memorandum.

3.3.1.2 The assessment area for air quality impact shall be defined by a distance of 500m from the boundary of the project area.

3.3.1.3 For construction impacts, the Applicant shall follow the requirements of the Air Pollution Control (Construction Dust) Regulation in dust control and shall initiate an audit and monitoring program during the construction stage to ensure construction dust impacts are controlled within the relevant standards as stipulated in Annex 4 of the TM.

3.3.1.4 The air quality assessment shall include the following :

General

(i) presentation of background air quality in the study area for the purpose of evaluating the cumulative air quality impacts of the proposed project;

(ii) description of the topographical and man-made features which may affect the dispersion characteristics of air pollutants within the study area;

(iii) identification of representative air sensitive receivers and/or potential affected uses;

(iv) identification of emission characteristics and provision of an emission inventory of the existing, committed and planned air pollution sources;

(v) description of the assessment method (whether it be analytical, numerical or physical) and the associated assumptions, validity of the method and limits of application;

(vi) analysis of operational activities (after commissioning), the related air quality impact and characterization;

(vii) assessment and evaluation of the net and cumulative air quality impacts;

(viii) presentation of the assessment results in the form of summary tables and pollution contours, whenever practicable, for comparison with relevant air quality standards and for the examination of the land use implications of these impacts;

(ix) proposals for effective mitigation measures to reduce the cumulative air pollution impacts to established standards; and

(x) the EIA report submitted should include all input and output(s) of the model run(s) in electronic format.

Specific

(xi) To address the possible impacts of aerial emissions on the surrounding environment from vehicles; and

(xii) To address air quality resulting from the widening works, during construction and operation stages, on the existing Wholesale Poultry Market and to determine whether the resulting air quality will have any detrimental effect on the poultry.

3.3.2 Noise Impact

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

3.3.2.2 The noise impact assessment shall include the following :

(i) Determination of Assessment Area

The noise impact assessment shall include all areas within 300m 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, closer than 300m from the project boundary, provides acoustic shielding to those receivers located further away.

(ii) Provision of Background Information

The Applicant shall provide all background information relevant to the project including relevant studies, previous or current. Background noise levels will be required for assessment of fixed or other noise sources, for which the planning standards involve background noise levels.

(iii) Identification of Noise Sensitive Receivers

(a) The Applicant shall refer to Annex 13 of the TM when identifying the noise sensitive receivers (NSRs). The NSRs shall include all existing and all planned/committed noise sensitive developments and uses earmarked on the relevant Outline Zoning Plans, Outline Development Plans and Layout Plans.

(b) The Applicant shall select assessment points to represent all identified NSRs for carrying out the 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 including 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 and for operational 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) of the project 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 paragraphs 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 to replace percussive piling shall be proposed as far as practicable.

(c) 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 tasks) to minimize the impact. If the mitigated noise levels still exceed the relevant criteria, the duration of the noise exceedance shall be given.

(vi) Road Traffic Noise

(a) Calculation of Noise Levels

The Applicant shall analyse the scope of the proposed road alignment(s) to identify appropriate new and existing road sections for the purpose of traffic noise impact assessment. When an existing road section undergoes major modification which will directly result in 25% increase in lanes or substantial changes in alignment or character (e.g. change to a high speed road) of the existing road, it shall be regarded as a new road for the purpose of this noise impact assessment.

The Applicant shall calculate the expected road traffic noise using methods described in the U.K. Department of Transport's "Calculation of Road Traffic Noise" (1988). Calculations of future road traffic noise shall be based on the peak hour traffic flow in respect of the maximum traffic projection within a 15 years period upon commencement of operation of the proposed roadwork. The Applicant shall calculate the traffic noise levels in respect of each road section and the overall noise levels from the combined road sections (both new and existing) at the NSRs.

(b) Presentation of Noise Levels

The Applicant shall present the prevailing and future traffic noise levels in L10, (1 hr) at the NSRs at various representative floor levels (in m P.D.) on tables and plans of suitable scale.

Quantitative assessment at the NSRs for the proposed road alignment(s) shall be carried out and compared against the criteria set out in Table 1A of Annex 5 in the Technical Memorandum. The potential noise impact of proposed road alignment(s) shall be quantified by estimating the total number of dwellings, classrooms and other noise sensitive elements that will be exposed to noise levels exceeding the criteria set in Table 1A of Annex 5 in the Technical Memorandum.

(c) Proposals for Noise Mitigation Measures

After rounding of the predicted noise levels according to the U.K. Department of Transport's "Calculation of Road Traffic Noise" (1988), the Applicant shall propose direct technical remedies within the project limits in all situations where the predicted traffic noise level exceeds the criteria set in Table 1A of Annex 5 in the TM by 1 dB(A) or more. Specific reasons for not adopting certain direct technical remedies in the design to reduce the traffic noise to a level meeting the criteria in the TM or to maximize the protection for the NSRs as far as possible should be clearly quantified and laid down. The total number of dwellings, classrooms and other noise sensitive element that will be benefited by the provision of direct technical remedies should be provided.

The total number of dwellings, classrooms and other noise sensitive elements that will still be exposed to noise above the criteria with the implementation of all recommended direct technical remedies shall be quantified.

In case where a number of the NSRs cannot all be protected by the recommended direct technical remedies, the Applicant shall identify and estimate the total number of existing dwellings, classrooms and other noise sensitive elements which may qualify for indirect technical remedies under the ExCo directive "Equitable Redress for Persons Exposed to Increased Noise Resulting from the Use of New Roads", the associated costs and any implications for such implementation. For the purpose of determining the eligibility of the affected premises for indirect technical remedies, reference shall be made to the following three criteria:

(1) the predicted overall noise level from the new road together with other traffic noise in the vicinity must be above a specified noise level (e.g. 70 dB(A) for domestic premises and 65 dB(A) for education institutions, all in L10(1 hr));

(2) the predicted overall noise level is at least 1.0 dB(A) more than the prevailing traffic noise level, i.e. the total traffic noise level existing before the works to construct the road were commenced; and

(3) the contribution to the increase in the predicted overall noise level from the new road must be at least 1.0 dB(A).

(vii) Assessment of Side Effects and Constraints

The Applicant shall identify, assess and propose means to minimize any side effects and to resolve any potential constraints arising from the inclusion of any recommended direct technical remedies.

(viii) Evaluation of Constraints on Planned Noise Sensitive Developments/Land Uses

For planned noise sensitive uses which will still be affected even with all practicable direct technical remedies in place, the Applicant shall propose, evaluate and confirm the practicality of additional measures within the planned noise sensitive uses and shall make recommendations on how these noise sensitive uses will be designed for the information of relevant parties.

The Applicant shall take into account the agreed environmental requirements/constraints identified by the study to assess the development potential of the concerned sites, which shall be made known to the relevant parties.

3.3.3 Waste Management Implications

3.3.3.1 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.

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

(i) Analysis of Activities and Waste Generation

The Applicant shall identify 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 shall be fully evaluated.

(b) Having taken into account all the opportunities for reducing waste generation, 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 described in detail. The disposal method recommended for each type of wastes shall take into account the result of the assessment in (c) below.

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

(c1) potential hazard;
(c2) air and odour emissions;
(c3) noise;
(c4) wastewater discharge; and
(c5) public transport.

3.3.4 Water Pollution

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

The Applicant shall include the following in the water quality impact assessment:

(i) establishment of pertinent water quality objectives, criteria and standards for the water systems;

(ii) identification and analysis of all existing and future water pollution sources during both construction and operation stages, including point discharges and non-point sources to surface water runoff;

(iii) prediction of impacts on the water system; and

(iv) proposals for upgrading or providing any effective infrastructure, water pollution prevention and mitigation measures to be implemented during the construction and operation stages to reduce the water quality impacts to within acceptable standards.

3.3.5 Impact on Cultural Heritage

The Applicant should identify any direct or indirect impacts on any sites of cultural heritage which could be affected by the project in order to avoid causing any negative impacts. In the event any potential impacts are identified on any archaeological sites, historic buildings and structures within or near to the project area the Applicant shall recommend any necessary monitoring and mitigation measures. Such monitoring and mitigation measures if necessary shall be agreed with the Antiquities and Monuments Office. The following historic buildings and structures are located near to the Study Area as shown in Figure 2 and should be considered in the first instance:

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 project and, if affirmative, shall define the scope of the EM&A requirements for the project in the EIA study. An operational noise monitoring programme should be proposed to verify the traffic noise predictions or the effectiveness of noise mitigation measures.

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.

4.3 The Applicant shall prepare a project implementation schedule (in the form of a checklist) containing all the EIA study recommendations and mitigation measures with reference to the implementation programme.

5. SUMMARY of ENVIRONMENTAL OUTCOMES

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

This EIA study brief is valid for 24 months from 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) 40 copies of the EIA report in English and 50 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, 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 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 Report prepared in HyperText Markup Language (HTML) (version 4.0 or later) and in DynaDoc Format (version 3.0 or later) [for Chinese documents] and in Portable Document Format (PDF version 3.0 or later) [for English documents], 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 Report shall be included in the beginning of the document, and all graphics in the report shall be in interlaced GIF format.

7.4 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.

7.5 When the EIA Report and the Executive Summary are made available for public inspection under s.7(1) of the EIA Ordinance, 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 updated electronic copies.

8. OTHER PROCEDURAL REQUIREMENTS

8.1 During the EIA study, 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 project mentioned in Section 1 of this EIA study brief and in Project Profile (No. PP-057/1999), 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 project fundamentally alter the key scope of the EIA study brief, the Applicant shall apply to the Director for a fresh EIA study brief.