Construction Environmental Management Plan ENC023 Workshop 1.0

Hong Kong Institute of Vocational Education EN-C023 Construction Environmental Management Plan

Engineering Discipline In-service Training Workshop

Hong Kong Institute of Vocational Education Engineering Discipline In-service Training

Professional Certificate in Environmental Management for Construction (Environmental Officer)Construction Environmental Management Plan (EN-C023) Group Workshop

Study Name

:

Lam Chun Hin Eddie Pang Lee Ching Suen Kai Leung Yan Siu Man

Programme code Course Code Submission Date :

:

55996M

EN-C023 : 11th October 2012

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Hong Kong Institute of Vocational Education Engineering Discipline In-service Training Workshop EN-C023 Construction Environmental Management Plan

Environmental Management Plan for Contract DC/2007/12 Design & Construction of Tsuen Wan Drainage Tunnel

Maeda-CREC-SELI Joint Venture Drafted By Signature Name Position Date Environmental Engineer Environmental Officer (Quality & Environmental Manager) Project Manager Prepared By Approved By

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Hong Kong Institute of Vocational Education Engineering Discipline In-service Training Workshop EN-C023 Construction Environmental Management Plan Amendments History Since Last Issue Text Affected Remarks

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Contents 1. 2. INTRODUCTION ENVIRONMENTAL MANAGEMENT APPROACH 2.1 General 2.2 Environmental Policy 2.3 Environmental Requirements 2.4 Environmental and Impact Assessment (EIA) Report 2.5 The Environmental Permit (EP) 2.6 Environmental Monitoring and Audit (EM&A) Manual JOINT VENTURES ORGANISATION FOR ENVIRONMENTAL MANAGEMENT 3.1 Joint Venture Details 3.2 Environmental Organisation Chart 3.3 Environmental Roles and Responsibilites 3.4 Employment of Environmental Monitoring and Audit (EM&A) Personnel 3.5 Environmental Communication ENVIRONMENTAL TRAINING IN-HOUSE RULES AND REGULATIONS ENVIRONMENTAL COMMITTEES PROMOTION PERFORMANCE MONITORING 8.1 Environmental Inspections and Audits 8.2 Environmental Non-Conformance (NC) REVIEW OF PERFORMANCE AND REQUIREMENTS ENVIRONMENTAL EMERGENCY PROCEDURE ENVIRONMENTAL IMPACT ASSESSMENT 11.1 Methodology 11.2 Scope of Works 11.3 Identification of Potential Environmental Aspects / Impacts 11.4 Environmental Significant Aspect / Impact NUISANCE ABATMENT/ MITIGATION MEASURES 12.1 Air 12.2 Noise 12.3 Water / Wastewater Discharge 12.4 Ecology 12.5 Cultural HeritagePage 4 of 67

3.

4 5 6 7 8

9 10 11

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12.6 12.7 12.8 13

Fisheries Dangerous and Hazardous Goods Other Environmental Aspects

WASTE MANAGEMENT 13.1 Waste Reduction and Minimisation Measures 13.2 Objectives and Target of Waste Management 13.3 On Site Sorting of C&D Waste 13.4 Waste Flow 13.5 Chemicals Waste ENVIRONMENTAL MONITORING AND AUDIT ENVIRONMENTAL RECORDS

14 15

APPENDICES Attachment 1 Attachment 2 Attachment 3 Attachment 4 Attachment 5 Attachment 6 Attachment 7 Attachment 8 Attachment 9 Attachment 10 Attachment 11 Attachment 12 Attachment 13 Attachment 14 Environmental Policy Project Organization Chart (Environmental Management Structure) Environmental Team Leader and the Environmental Team Construction Environmental Guidelines Location plan of sensitive receivers Proposed location plans for Air monitoring stations Sketch of Typical Noise Barrier Layout and Sketch of Noise Enclosures at the Tunnel Portal Proposed location plans of Noise monitoring stations Layout plans for collection of surface run-off and proposed pollutant discharge points at Intake I-1, Intake I-2, Intake I-3 and Outfall O-1 Location plans for Water Quality monitoring stations Layout plan showing the Sites temporary storage of C&D materials Environmental Records Forms Monthly Summary Waste Flow Table for the Year 2010

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1.

INTRODUCTION This Environmental Management Plan (EMP) is to describe the environmental issues in this project of Drainage Service Department (DSD) with the contract no. DC/2007/12, which is a Designated Project (DP) defined under the Environmental Impact Assessment (EIA) Ordinance. In this plan, the arrangements for the environmental nuisances; and avoidance, reuse, recovery and recycling, storage, collection, treatment and disposal of different categories of waste to be generated from the construction activities throughout the construction period are demonstrated. It is required to comply with all the requirements as specified in the EIA Report and the conditions specified in the Environmental Permit (EP) including any variation of the Environmental Permit; and a Variation Environmental Permit (VEP) if the conditions during construction are different from that specified in the Approved EIA Report. The Project has also to implement the EM&A programme in accordance with the procedures and requirements included in the Environmental Monitoring and Audit (EM&A) Manual to ensure the implementation and the effectiveness of the environmental protection and pollution control measures to be adopted properly. The approaches of environmental management system is illustrated in the EMP, which will be implemented that to assure the requirements stated in the EIA report are effectively fulfilled during the project. It also demonstrated the management framework and target that to achieve the continuous improvements, e.g. reduce environmental nuisances and Construction and Demolition (C&D) materials arising from Works. The mitigation measures in different categories of environmental issues are also set out that will be executed during construction during construction period, to attain the requirements stated in the EIA report. Awareness of the environmental responsibilities of Maeda-CREC-SELI Joint Venture (the JV) environmental management team in the EMP can be demonstrated that the implementation of EMP comprises not only the statuary legislation, but also the requirements of contract and the EIA Report. It will ensure the effective contract specific implementation and reporting on compliance with the stated mitigation measures, as well as the monitoring and auditing requirements and remedial actions defined in the EIA Report In addition, the implementation of EMP provides evident and records to the JV to meet the requirements and be granted merit of the standard of management system, e.g. ISO 9000/18000, from the profession institutes. This document is cross referenced to the procedures of Maeda Corporations (Joint Venture Leaders) Quality and Environmental Manual where appropriate. The contents of the project EMP will include the following details: A) The commitment and strategy in implementation of the environmental management on the site. B) Organization structure and duties and responsibility of staffs in the environmental management system. C) Details of licensing of corresponding legislations, e.g. environment licences or permits, and other requirements in the EIA report. D) Identification of environmental aspects and nuisancesPage 6 of 67

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E) Implementation of environmental nuisances abatement and mitigation measures F) Performance monitoring and checking system with documentation and auditing. To adhere with contract specific Environmental Monitoring and Audit (EM&A) Manual, the JV shall employ an independent Environmental Team (ET) which is approved by the Supervising Officer to undertake the specified requirements in the EM&A Manual. To comply with and observe all ordinances, by-laws regulations and rules for the time being in force in Hong Kong governing all forms of pollution and the protection of the environment, the JV will process the application of all licences or environmental related permits (e.g. Discharges Licence, Licences for Specified Process Construction Noise Permit, Noise Emission Labels etc.) that are required for construction.This document together with the Waste Management Plan (WMP), and the Environmental Mitigation Implementation Schedule (EMIS) which is the programme for the provision of the mitigation measures; the Project Environmental Aspects, Impacts and Controls Checklists (PEAICC) and Environmental Monitoring Record (EMR) form, will form the basic requirements of the JV in managing and controlling potential environmental impacts associated with the construction activities for this Project.

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2.

ENVIRONMENTAL MANAGEMENT APPROACHThe principal requirement of the project specific EMP is to provide a management system to cover all the environmental aspects associated with the works. The EMP will also be supported by all related environmental documents and records, governed under statutory requirements and the JVs standard procedures and site specific method statements. The project specific EMP will be prepared and submitted prior to the commencement of construction activities.

2.1

General A fundamental element of the Maeda-CREC-SELI Joint Ventures philosophy on the proposed management of the contract is the identification of the environmental aspects associated with the construction process. All potential environmental impacts will be assessed for significance and appropriate mitigation measures will be determined for each identified significant impact, in order to eliminate or minimize their adverse affect on the environment and neighbourhood. Maeda-CREC-SELI Joint Venture is committed to following the policies and procedures outlined in this EMP, as well as to regulatory compliance, waste minimization, risk reduction and continual improvement of the Environmental Management System.

2.2

Environmental Policy In recognition of the prominence of environmental issues, Maeda-CREC-SELI Joint Venture is committed to giving environmental protection the highest practicable priority in all works. A copy of the signed JVs Environmental Policy (extracted from the JVs Quality and Environmental Manual) is enclosed as Attachment 1 In summary Maeda-CREC-SELI Joint Venture shall: (a) implement environmental controls and mitigation as set out in the approved EMP as well as any additional measures necessary for compliance with the environmental control standards; (b) follow directions given by the Supervising Officer, or the ET as required to implement event/action plans; and (c) comply with the environmental controls for mitigation of construction related impacts

2.3

Environmental Requirements Maeda-CREC-SELI Joint Venture shall comply with and observe all ordinances, by-laws regulations and rules for the time being in force in Hong Kong governing all forms of pollution and the protection of the environment. In addition, Maeda-CREC-SELI Joint Venture shall for apply licences or environmental related permits (e.g. Discharge Licence, Licence for Specified Process, Construction Noise Permit, Noise Emission Labels, etc.) are required in construction, which shall include but not be limited to the following:

2.3.1

Legislation for Management of Air QualityPage 8 of 67

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(i) (ii) (iii) (iv) (v) (vi) (vii) (viii) (ix) 2.3.2

Air Pollution Control Ordinance (Cap 311) 1983; Air Pollution Control (Air Control Zones)(Declaration)(Consolidation) Order 1993; Air Pollution Control (Construction Dust) Regulation 1977; Air Pollution Control (Dust and Grit Emission) Regulations 1974; Air Pollution Control (Fuel Restriction) Regulations 1990; Air Pollution Control (Furnaces Ovens and Chimneys) Installation and Alternation Regulations 1972; Air Pollution Control (Open Burning) Regulation 1996; Air Pollution Control (Smoke) Regulation 1983; Air Pollution Control (Specified Process) Regulations 1987;

Legislation for Management of Noise (i) (ii) (iii) (iv) (v) (vi) Noise Control Ordinance (Cap 400) 1988; Noise Control Regulation (General) Regulations 1989; Noise Control (Construction Work) Regulation 1996; Noise Control (Construction Work Designated Areas) Notice 2001; Noise Control (Hand Held Percussive Breakers) Regulations 1991; Noise Control (Air Compressors) 1991;

2.3.3

Legislation for Management of Water Quality (i) (ii) (iii) Water Pollution Control Ordinance (Cap 358) 1980; Dumping at Sea Ordinance (Cap 446) 1995; Foreshores and Sea Bed (Reclamations) Ordinance (Cap.127) 1985;

2.3.4

Legislation for Management of Wastes (i) (ii) (iii) Waste Disposal Ordinance (Cap 354) 1980; Waste Disposal (Chemical Waste) (General) Regulation 1992; Land (Miscellaneous Provision) Ordinance (Cap.28) 1972;

2.3.5

Legislation for Environmental Impact Assessment (i)Environmental Impact Assessment Ordinance (Cap. 499) 1997;

2.3.6

Legislation for Conservation (i) (ii) (iii) The Animals and Plants (Protection Of Endangered Species) Ordinance (Cap. 187) 1976; Wild Animals Protection Ordinance (Cap.170) 1976; Forests and Countryside Ordinance (Cap.96) 1950;

2.3.7

Other Legislation for Environmental Management (i) Factories and Industrial Undertakings Ordinance (Cap 59);Page 9 of 67

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(ii) (iii) (iv) (v) (vi) (vii) (viii)

Buildings Ordinance (Cap 121); Buildings Ordinance (Application to New Territories) Ordinance (Cap 121); Public Health and Municipal Services Ordinance (Cap 132); Public Cleansing and Prevention of Nuisances (Regional Council) By-Laws (Cap 132); Public Cleansing and Prevention of Nuisances (Urban Council) By-Laws (Cap 132); Summary Offences Ordinance (Cap 228); Merchant Shipping (Oil Pollution) (Hong Kong) Order 1975;

Relevant enacted ordinances and their Regulations as above shall be maintained on the Site by Maeda-CREC-SELI Joint Venture and copies of the above will be provided to the Supervising Officer for reference. In the event of discrepancies between the PS, the EM&A Manual and the Environmental Permit during the course of execution of the Contract, the Environmental Permit will take precedence.2.4

Environmental and Impact Assessment (EIA) Report The EIA Report provides an assessment of the predicted scope and extent of likely impacts resulting from the Design & Construction of Tsuen Wan Drainage Tunnel. Mitigation recommendations have been specified to ensure that the environmental quality objectives are met. The recommended mitigation measures from the EIA Report are summarized in the form of an Implementation Schedule (IS). An integral part of these recommendations is the requirement to undertake an EM&A process to verify the level of environmental performance achieved and the effectiveness of the recommended mitigation measures.

2.5

The Environmental Permit (EP) Maeda-CREC-SELI Joint Venture shall ensure full compliance in all respects with the conditions stated in the Environmental Permit issued by the Director of Environmental Protection (DEP) in respect of the Works or project which the Works forms a part thereof under the Environmental Impact Assessment Ordinance (Cap. 499) including any Variation of the Environmental Permit. Maeda-CREC-SELI Joint Venture has the responsibility to apply for a Variation of Environmental Permit (VEP) under Section 13 of the Ordinance when the need for variation of conditions of the environmental permit arises. In general, a variation of the environmental permit would be issued without the need for an environmental impact assessment report if the Director is satisfied that there is no material change to the environmental impact of the designated project with mitigation measures in place and the designated project complies with the requirements & the Technical Memorandum on Environmental Impact Assessment Process. If an environmental impact assessment report is required, the procedures described in Sections 5, 6, 7 and 8 of the Ordinance should be followed.

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Copies of the most updated information about the Permit, including any amended Environmental Permit shall be displayed conspicuously on the Project site(s) at all vehicular site entrances/exits or at convenient locations for public information at all times. Suspended, varied or cancelled Permits shall be removed from display at the Project sites; and another environmental permit is required to be obtained by Maeda-CREC-SELI Joint Venture under the EIAO before the Project could be continued, in the event of any suspension, variation or cancellation of the Permit by the Director with the consent of the Secretary for the Environment, Transport and Works under Section 14 of the EIAO. If there is a breach of any condition of this Permit, the Director or his authorized officer may with the consent of the Secretary for the Environment, Transport and Works, order the cessation of associated work until remedial action is taken in respect of the resultant environmental damage. Associated works shall not be carried out without the permission of the Director or his authorized officer. Any person, who operates the Project contrary to the conditions in the Environmental Permit, may be convicted of an offence under the EIAO.2.6

Environmental Monitoring and Audit (EM&A) Manual The Environmental Permit imposes the requirements for monitoring the environmental impacts of the project for verification of predictions or the effectiveness of measures to mitigate its environmental impacts whether such impacts occur within or outside the physical boundary of the project. The Environmental Permit also imposes the requirements for the formulation of environmental audit, including any necessary compliance, in order to review the environmental monitoring data, assess compliance with regulatory requirements, policies and standards, and identify any remedial works required to redress unacceptable or unanticipated environmental impacts. Before the commencement of construction, Maeda-CREC-SELI Joint Venture shall undertake baseline monitoring in accordance with the updated EM&A Manual. The Environmental Monitoring and Audit (EM&A) Manual is: to guide the set up of an EM&A programme to ensure compliance with the Environmental Impact Assessment (EIA) study recommendations, to assess the effectiveness of and to identify any further need for additional mitigation measures or remedial action.

The EM&A Manual outlines the monitoring & auditing protocols which will be necessary to achieve the objective of the EM&A programme. For details please refer to Section 14 of this EMP. Implementation of the EM&A programme by the Environmental Team and the EM&A data will reflect the Projects compliance with the environmental quality standard. It also serves as a feedback to Maeda-CREC-SELI Joint Venture, Drainage Services Department (DSD), the Project Proponent, and the Environmental Protection Department (EPD) in determining if the existing mitigation measures are adequate.Page 11 of 67

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3. 3.1

JOINT VENTURES ORGANIZATION FOR ENVIRONMENTAL MANAGEMENT Joint Venture Details Maeda-CREC-SELI Joint Venture comprises three experienced construction Companies, namely Maeda Corporation (JV Leader), China Railway Engineering Corporation, and SELISocieta Esecuzione Lavori Idraulici S.p.A Maeda-CREC-SELI Joint Venture will take the leading role to monitor and manage environmental issues associated with the contract throughout the works. Partnering with JV, the sub-contractors or suppliers are responsible for their specific areas of works.

3.2

Environmental Organisation Chart The proposed management structure for environmental organization of the project is shown in Attachment 2.

3.3

Environmental Roles and Responsibilities The Project Manger is ultimately responsible for the Projects environmental management including task allocation to all staff, and provision of resources and facilities for the implementation of the project environmental management system according to the EMP. The Project Environmental Officer with the assistance of the Environmental Supervisors shall be responsible for all the project related environmental issues including but not limited to the application of permits and licences from EPD and other Government Departments; reporting and monitoring the performance of implementation control and mitigation measures in reducing the environmental impacts. A Resources Plan for the environmental management of the Works will also be prepared and developed to identify additional site staff assigned for other environmental aspects, such as mosquito breeding control, maintenance of treatment plants and automatic wheel washing facilities etc., wherever necessary. A project environmental team comprising, site identified personnel and the Environmental Team (ET) together with Supervising Officers Representative will be set up to manage and control environmental issues for the execution of the Contract.

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The environmental roles and responsibilities of the core staff are summarized in the following table: Title Project Manager Responsibilities Ultimately responsible for the Projects environmental performance; Approving this EMP and committing to the implementation of it and other management systems in all aspects relating to environmental protection; and Task allocation to all staff. & Reviewing this EMP and environmental aspects for the project; Arrange internal and external environmental management audits as according to the environmental audit program developed; To supervise and monitor the implementation of statutory and contractual requirements. Advising the Project Manager on all environmental issues in respect of complying with the stipulated and relevant requirements. Prepare, implement and update the Environmental Management Plan; Advice on measures to be taken in the interest of environmental protection, and implement such measures; Liaise on all matters relating to environment monitoring and auditing; Carry out inspections of the Site for identifying potential hazards to the environment, and to report findings with recommendations for corrective action; Participate in the weekly environmental walk with the nominated Supervising Officer, and to supervise and monitor the environmental performance on the site; Check and ensure that any polluting or potential polluting situation is prompt rectified; Attend Site Safety and Environmental Management Committee (SSEMC) meetings and Site Safety and Environmental Committee ((SSEC) meetings; Compile the monthly environmental report for submission to the Supervising Officer at least 5 working days before the SSEMC meetings; Reviewing method statements, in conjunction with Project Safety Officer, prior to authorization, issue andPage 13 of 67

Quality Environmental Manager

Environmental Officer

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Title

Responsibilities implementation; Arranging environmental Training or including site specific induction training and tool box talks for the staff and workers on the Site; and to organize environmental promotional activities; Ensuring that each sub-contractor has been made aware of his environmental obligations via sub-contract kick-off meeting and on the implementation an environmental management system; Handling external complaints; and Oversee and supervise the Tree Preservation works. and Overall superintendence and control of all site matters; Arranging sufficient resources for the execution of this EMP and the respective mitigation measures; and Ensuring that all site staff and sub-contractors staff and labour comply with legislation and the requirement as stated in this EMP. Contact person for all site environmental related matters. Assist the Environmental Officer carrying out his duties; Carry out daily site environmental inspections based on a checklist approved by the Supervising Officer's Representative, and to ensure that follow-up action is taken promptly to rectify defects and deficiencies identified; Advise the Environmental Officer on the up keeping of environmental performance and standards of the Site; Attend the weekly environmental walk if required; Supervise and promote the execution of environmental protection works by the workers on the Site; Attend SSEMC meetings and SSEC meetings; and Conduct toolbox talks as assigned by the Joint Venture's Project Manager after acquiring the necessary qualifications. Monitor the various environmental parameters as required in the EM&A Manual; Analyze the EM&A data and review the effectiveness and success of EM&A programme; and confirm the adequacy ofPage 14 of 67

Construction Manager (Tunnels) Construction Manager (Geotechnical Civil)

Environmental Supervisor

Environmental Team Leader and the Environmental Team

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Title

Responsibilities mitigation measures implemented; and the validity of the EIA predictions and to identify any adverse environmental impacts arising; Carry out bi-weekly site inspections to investigate and audit the Joint Ventures site practice, equipment and work methodologies with respect to pollution control and environmental mitigation, and anticipate environmental issues for proactive action before problems arise; Audit and prepare audit reports on the environmental monitoring data and the site environmental conditions; Report on the EM&A results to the IEC, Joint Venture, the SOs Representative, and the EPD; Recommend suitable mitigation measures to the Joint Venture in the case of exceedance of action and Limit levels in accordance with the Event and Action Plans; and Adhere to the procedures for carrying out complaint investigation work following the procedures specified in EM&A Manual. Ensuring that environmental mitigation measures are properly executed.

Construction Team/ Other site personnel

3.4

Environmental Team and Environmental Team Leader Referring to the requirement of the Environmental Permit, experienced personnel, i.e. an independent Environmental Team with a Leader, shall be employed to undertake the tasks of Environmental Monitoring and Audit (EM&A) according to the EM&A programme specified in EM&A Manual. The independent Environmental Team (ET) shall be established within one month before the commencement of construction of the Project. The ET shall be independent from any associated body of any member from the Joint Venture or the Independent Environmental Checker (IEC) for the Project. The ET shall be headed by an ET Leader. The ET and the ET Leader shall be responsible for the implementation of the EM&A programme in accordance with the EM&A requirements as contained in the EM&A Manual of the Project. The Organization and Job reference of proposed ET and CV of the proposed ET Leader are enclosed in the Attachment 3. The responsibilities of the Environmental Team (ET) shall cover without limitation the following as specified in the Contract: (i) Liaise with other parties such as IEC, EPD and Government departments regarding anyPage 15 of 67

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environmental issues arising from the project; Schedule the environmental monitoring activities; Carry out site monitoring against various environmental parameters as specified in the EM&A Manual; (iv) Verify the validity of data upon receipt of field measurements and laboratory results; (v) Prepare reports, as specified in the EM&A Manual, in a timely manner and ensure the quality of the outputs; (vi) Review and comment on the environmental performance based on monitoring results. (vi) Liaise with the SO and JV upon receipt of complaints and/or breaching of statutory limits; (vii) Ensure the Event/ Action Plan as stated in the EM&A Report is implemented; (viii) Investigate the causes of complaints and/or limit exceedances; (ix) Advise on suitable mitigation measures in case of exceedance of Action and Limit levels in accordance with the Event and Action plans; (x) Ensure the proposed mitigation measures listed in the EP and its subsequent variations are implemented and maintained; (xi) Perform regular audits of the environmental monitoring data; (xii) Perform site inspections during audit; (xiii) Provide advice on any pollution control measures, if necessary, after a site inspection. (ii) (iii)3.5

Environmental Communication The chart below illustrates the line of communication among the keys parties, including the Employer, EPD, Supervising Officer, IEC, ET, JV and its subcontractors, in relation to the implementation of relevant environmental processes specified under the Environmental Impacts Assessment Ordinance for execution of the Project.

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DSD

Liaison

EPD EIA OfficeRecommendation & Improvement Recommendation & Improvement

Liaison

Supervising Officer / Supervising Officers RepresentativeSupervision

Independent Environmental CheckerMonitoring And Auditing

Maeda-CRECSELI Joint VentureSupervision

Environmental TeamSubmission of EM&A Reports

Sub-contractors

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4.

ENVIRONMENTAL AWARENESS AND TRAINING Promoting environmental awareness for the Project is an implicit part of running an effective Environmental Management System (EMS). In general, the following measures will be adopted and implementation will be properly recorded:

4.1

Environmental Awareness and Induction Course Forming part of the EMS, all site staff, including site managerial staff, site supervisory staff and workers employed by the JV and its sub-contractors of all tiers will be given a site specific induction in environmental awareness training on environmental and waste management at the commencement of their employment for the construction works. The induction training shall be conducted by the Environmental Officer or Supervisor, which will cover all necessary subjects on the environmental management specified under the updated project EMP that includes but is not limited to the items such as legislation requirements, site environmental impacts, abatement measures, targets, reporting channel, in-house rules and regulations etc.

4.2

Legislation Update Through subscribing to a legal database, the Environmental Officer is able to advise the project team on any new legislation relating to the JVs environmental aspects.

4.3

Toolbox Talks Maeda-CREC-SELI Joint Venture recognises that environmental improvement is everyones responsibility and the success of it heavily relies on the awareness of its frontline staff and subcontractors. Thus, on a regular basis, Maeda-CREC-SELI Joint Venture will arrange environmental toolbox talks on environmental nuisance, abatement and waste management for its workers of subcontractors whose activities may have significant environmental impacts. The frequency of the environmental toolbox talks will be arranged to suit the subcontractors performance.Refresher courses will be arranged to strengthen environmental awareness of the construction team as necessary.

4.4

Communication to Subcontractors All Sub-contractors, prior to commencement on site, shall attend a Subcontract Kick-Off Meeting. This kick-off meeting and the subsequent progress meetings shall form the basic channel for Maeda-CREC-SELI Joint Venture to formally communicate any environmental requirements to the Sub-contractors. A copy of the Construction Environmental Guidelines (CEG) enclosed as Attachment 4 and Maeda-CREC-SELI Joint Ventures and Employers environmental policy statements will be forwarded to each of the Sub-contractors during the kick-off meetings.Page 18 of 67

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4.5

Experience Sharing Also through the Environmental Officer, the project team is able to share successful experiences with other projects undertaken by each member of Maeda-CREC-SELI Joint Venture.

4.6

External Seminar As part of the Continuing Professional Development (CPD) programme, the project team may nominate members to attend relevant environmental seminars. Other informal communication channels may be established such as awareness training, environmental Toolbox Talks and other environmental promotion programmes.

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5.

IN-HOUSE RULES AND REGULATIONS In-house rules and regulations on environmental nuisance abatement and waste management will be developed for the integrated Quality Management System (QMS) and Environmental Management System (EMS) of Maeda-CREC-SELI Joint Venture. These are additional to the standard procedures below, which will include also those instructed and specified by Supervising Office and the Employer and shall be incorporated in the execution of the Contract.

5.1

Standard Procedures As a major part of the EMS Document, the Standard Procedures provide a wide range of practical guidelines in various categories: SP/ENV/01 Aspect Management, SP/ENV/02 Monitoring and Measurement, SP/ENV/03 Emergency Preparedness and Responses, SP/ENV/04 Non-conformance Control, SP/ENV/05 Management System Audit, and SP/ENV/07 Permit-to-Work (Noise). These procedures will be introduced to all levels of site staff as part of the training on MaedaCREC-SELI Joint Ventures QMS and EMS.

5.2

Procurement It is the JVs procurement policy that plywood containing tropical hardwoods shall not be used on site. Suppliers providing plywood shall confirm that their material does not contain any tropical hardwoods.

5.3

Housekeeping & Cleanliness As mentioned in the following sections, Maeda-CREC-SELI Joint Venture will undertake regular site inspections to ensure good site practice and housekeeping and an acceptable state of cleanliness. Any deficiencies identified shall be rectified as soon as practicable. To ensure the full compliance with the in-house rules and regulations on environmental nuisance abatement and waste management, all the relevant rules and regulations applicable to the Works will be documented, reviewed, amended and communicated to all levels of staff working on the Site Should any individuals or parties intentionally violate the in-house rules and regulations on environmental nuisance abatement and waste management, they will immediately be dismissed and removed off site by the Project Manager.Page 20 of 67

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6. 6.1

ENVIRONMENTAL COMMITTEES Site Safety and Environmental Management Committee A Site Safety and Environmental Management Committee (SSEMC) shall be formed to involve the managerial levels of the project Employer, the Supervising Officer and the JV to discuss the site safety and environmental matters. The main functions and objectives of the committee include, but are not limited to the following: Review and advice on the EMP in accordance with the Policy and environmental requirements in the Project. Monitor the adequacy of the EMP. Ensure the implementation of the EMP on all work areas. Enhance communication between the SO and the Joint Venture on environmental matters. Examine environmental reports and comment on corrective action proposals to implement changes following from the report findings. Consider and discuss reports and information supplied by the Government, or outside consultants. Review the waste management plan and its implementation on site.

6.2

Site Safety and Environmental Committee A Site Safety and Environmental Committee (SSEC) shall be formed to review and to monitor EMP implementation. Different from the SSEMC, the SSEC comprises only the JV project team and its sub-contractors representatives. The main functions and objectives of the committee include: Plan, monitor and review the environmental performance from sub-contractors views. Ensure the implementation of the EMP. Review environmental inspection findings and the Environmental Officers recommendations for resolution and its implementation. Study, review and monitor the environmental audit reports/corrective action plans/action results. Discuss the feedback collected and reviewed by the Environmental Officer from all levels or from Members of the SSEC, then the SSEC shall make recommendation to the top project management for implementation. Monitor and review the implementation of the follow up action of feedback.

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7

PROMOTION For promoting and maintaining the awareness on environmental nuisance abatement and waste management amongst all persons on the Site, the following initiatives will be established and arranged:

7.1

Environmental Bulletins An Environmental Bulletin Board will be established at prominent locations on site, e.g. site office or site entrance, so that every site personnel has a chance to see the information during the working day. A Suggestion Box will be provided on the bulletin board as a means for site personnel to feedback their suggestions and comments on environmental matters on site. Any important messages or items displayed on the bulletin board will be coated with protective PVC sheets. The Environmental Officer / Supervisor shall be responsible for displaying of items on the bulletin board. Generally the following items will be displayed on the Environmental Bulletin Board. Environmental Policy, Promotion posters (CITA Training Scheme, HKCAetc), Site Environmental Organization Chart, Updated SSEC meeting minutes, Promotional activities, The most recent environmental inspection checklist, Emergency notice, Emergency contact telephone list Accident Statistics Non-compliance statistics

The Project Environmental Officer / Supervisor will check and update the items properly at the end of each month. 7.2 Environmental Banners Environmental banners will be prepared and displayed at prominent locations on site, e.g. site office or site entrance, in order that every site personnel has a chance to see them.

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7.3

Environmental Campaigns For recognition and commending those site personnel, teams or sub-contractors with good performance on environmental nuisance abatement and waste management, Maeda-CRECSELI Joint Venture will regularly organize various competitions regarding environmental awareness or promotion activities. In recent years, an Environmental Slogan Competition was held to encourage JV staff to provide interesting and suitable slogans and the winning slogans will be printed on banners for site display. Maedas Kaizen Campaign was another typical example to promote the selfawareness on environmental protection among JVs employees. All of the staff may propose ideas in relation to possible ways to improve site or office environment and the winners ideas will be adopted in all work areas of JV. The project teams are also encouraged to organize similar competitions or campaigns for their own site staff.

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8. 8.1

PERFORMANCE MONITORING Environmental Inspections For the purpose of monitoring environmental performance, the Joint Ventures EMS includes a monitoring mechanism in addition to the EM&A programme outlined in the contract specific EM&A Manual which is specified below. Monitoring of environmental performance shall be conducted at two principal levels. Firstly, the construction personnel shall on an ongoing basis, through their normal surveillance of site operations, ensure the compliance of site activities, including the operations of subcontractors, with: Legislative requirements pertaining to the works; Specific stipulations required by EPD (e.g. conditions of permit or licences); Approved method statements; and General site practices

Secondly, the Project Environmental Officer / Supervisor shall undertake monthly audit checks on all site activities in order to ensure fulfillment of environmental requirements in the Contract including licenses or permits. Such checks shall be site-wide and encompass all pertinent environmental issues applicable to the ongoing works. In addition, regular environmental management system audits will be conducted by the Maedas Quality and Environmental Manager to review the overall environmental performance in accordance to the Project specific requirements, e. g. EMP, and the JV EMS that follow ISO 14000:2004 Standard. As according to the contract requirement, joint weekly environmental inspections will be required. The inspection team comprises Joint Venture environmental officer, the Contractors Agent and representative of the Supervising Officer or Employer. According to the EM&A Manual, bi-weekly environmental site inspection will be carried out by ET. Project Specific and comprehensive checklists, namely the Environmental Monitoring Record (EMR) as attached at Appendix 13 for site inspections, will be developed with the agreement of Supervising Officer. 8.2 Environmental Non-conformance (NC) Exceedance cases of monitoring results, complaints, site deficiencies, violations of legislation or contractual clauses, if confirmed to be work-related, can be considered as nonconformances. All suspected incidents of non-conformance whether originated internally or by others (including the SO, ET, IEC, EPD and the like) shall be brought to the attention of the Project Environmental Officer for his/her further action.Page 24 of 67

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The Project Environmental Officer shall establish the facts concerning the suspected incident. Having established a basic fact of a non-conformance, the Project Environmental Officer shall raise a non-conformance report (environmental) (NCR(E)) to the concerned parties for followup action. A copy of the proforma is attached at Appendix 13. Following the above the Project Environmental Officer / Supervisor shall obtain acknowledgement of the NC from the parties responsible by having them sign the NCR(E). The party responsible for the NC occurrence shall determine the underlying reason(s), methods of redressing the occurrence and means of ensuring similar NC does not happen again. The Project Environmental Officer / Supervisor shall review the proposed corrective / preventive actions for adequacy. The proposed corrective actions and preventive action will be agreed with Supervising Officer. Upon receipt of a duly approved NCR(E) the party responsible shall undertake the proposals as approved. Proposed corrective / preventive actions shall be monitored during their execution, expedited as necessary, and verified for adequacy upon completion. The closing of the identified non-compliance will be subject to the agreement of the Supervising Officer. 8.3 Top Management Site Safety and Environmental Inspection To show the commitment of JVs top management to environmental control and improvement, the top management of the Hong Kong Office will inspect in person the active construction sites on a half-year basis. The inspection will focus on areas of housekeeping, surface runoff / site effluent management, dust control, waste management and mosquito breeding control. Comments or advice arising from the inspection will be recorded and conveyed to the project senior management for follow-up actions. 8.4 Daily Safety & Environmental Coordination Meeting Chaired by the Construction Managers or their designated representatives, the site internal meeting will be held daily at 13:00 to provide an opportunity for the Joint Venture together and sub-contractors to exchange site information and report any important issues. Assigned supervisory staff including sub-contractors will attend the meeting.

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9.

REVIEW OF REQUIREMENTS Environmental performance review comprises the regular assessment of the effectiveness of the EMP, site practices and procedures to ensure the required mitigation measures are routinely implemented and that they are being effective in achieving the required environmental standards. The criteria of the reviews shall be derived from the following: the approaches, procedures and commitments given under the EMP of JV; the clauses contained within the JVs internal and or Contractual Documentation; and those parts of the JV method statements which relate to the minimisation of environmental impacts or other specified environmental protection measures.

The reviews shall focus on the effectiveness of the implemented measures to achieve the purpose, not simply the fact that a measure has been implemented. Review protocols shall be developed by the JVs Project Environmental Officer with the assistance of ET Leader prior to the commencement of works and it is suggested that the protocols should include inspection and auditing of the following: the allocation of responsibility for fulfilling environmental requirements, and agreed mitigation measures, and the effectiveness of lines of communication with regard to environmental issues; compliance with procedures established to enable an effective response to environmental incidents, exceedances or non-compliance; the extent and accuracy of record-keeping related to environmental performance indicators; the effectiveness of staff training in ensuring high levels of awareness with regard to environmental requirements; and the effectiveness of environmental management activities.

The protocols shall comprise checklists of environmental requirements and shall be amended, throughout the construction phase as necessary, to focus on areas of frequent non-compliance and to reflect the potential impacts associated with specific activities within the construction programme. The JVs Project Environmental Officer shall review, at the commencement of the construction project, details of the locations of sensitive receivers used for air, noise and water that have been identified in the EIA and any other potential sources of environmental nuisance arising from the construction works.

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Details of the locations of sensitive receivers and the potential sources of environmental nuisance arising from the construction works, will be prepared with references to the locations plan showing the sensitive receivers may refer to Attachment 5. The Project Environmental Officer will regularly review the Project Environmental Management Plan to ensure due compliance with the latest statutory requirements, and prepare a report for the JV Board and the senior management team on a monthly basis. The review of the environmental performance shall include but not limited to the following: Regular inspection reports; Environmental Monitoring Record (EMR); Summary of permit to work records; Project Environmental Aspects, Impacts and Controls Checklists (PEAICC); Emergency response plan of environmental incidents; Environmental complaint or NC; etc.

The JV Board and the senior management team will conduct monthly management reviews to ensure the overall effectiveness and continual improvement of the EMS, allocate sufficient resources and identify on-going improvement objectives.

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10.

ENVIRONMENTAL EMERGENCY PROCEDURE Emergency procedures for dealing with exceptional circumstance, outside normal operational parameters, resulting in heightened environmental impacts such as: Fire with extinguishing fluids and fire-damaged materials arising; Spillage of fuels and chemicals, or loss of containment thereof; Discharge of significant amounts of wastewater and construction run-off to any Public drainage system or out of the Site particularly during adverse weather. Receiving any complaint on the environmental aspects from external parties including the Employer, Government Departments and the Public.

Fire Initially, the Project Safety Plan shall be followed in order to summons the emergency services and provide for the orderly evacuation of personnel from affected areas. Throughout the fire fighting operations the principal concerns must necessarily be the preservation of life and the extinguishing of the fire. Spillage Spillage may occur for a number of reasons despite various precautions. Where spillage of liquid occurs on an impermeable surface, it shall be covered with sand or proprietary soak-up materials where available until such time as it has been absorbed and may then be removed. If spillage on permeable surface, then contaminated material will be removed where necessary to do so, and reinstated with clean material. Thereafter, the spillage or contaminated materials shall be suitably contained for disposal as chemical waste. To ensure all workers are aware of the proper procedures to handle spillage, drills will be conducted regularly. In addition, a spill control and response plan has been prepared for works at the Intakes and work sites specified in the EIA Report. Rainstorm In addition to the foregoing precautions the following are to be taken at any time of year when rainstorms are likely: Temporarily exposed surfaces will be covered e.g. by tarpaulin. Temporary access roads will be protected by crushed stone or gravel. Trenches will be dug and backfilled in short sections. Measures will be taken to minimize the ingress of rainwater into trenches.Page 29 of 67

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Actions to be taken when a rainstorm is imminent or forecast: Silt removal facilities, will be checked to ensure that they can function properly. Open stockpiles of construction materials on site will be covered with tarpaulin or similar fabric. All temporary covers to slopes and stockpiles will be secured. Actions to be taken during or after rainstorms: Silt removal facilities will be checked and maintained to ensure satisfactory working conditions.

Flooding To avoid the potential discharge of significant amounts of wastewater to any public drainage system and out of the Site area, regular inspections are required on the stomewater drains, surface channels or temporary drainage systems within and adjacent to the works site, particularly if there is adverse weather forecast, In the event of flooding, we will immediately bund off the source of discharge or the outlets with sufficient sandbags; and try to block the source and stop the related operations. If the situation continues, then we will divert or pump the discharge to the waste water treatment facilities. External Complaints To facilitate the immediate response to external complaints relating to environmental issues, the Environmental Officer and/or the Project Manager, whoever is available, should be contacted for handling and resolving the event. A non-conformance report will be raised to monitor the closing and settlement of the issues following the procedure as specified at section 8.2 above. Reporting In any of the above cases including any complaints received on the environmental aspects from external parties, all site personnel shall be aware that the Project Manager and the Environmental Officer are to be notified of such occurrence of environmental incidents. The Project Manager shall then notify the Supervising Officer as soon as practicable and furnish a detail report, if required.

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11.

ENVIRONMENTAL IMPACT ASSESSMENT Identifying and evaluating environmental aspects (EAs) is fundamental to the EMS of the JV in order to control and minimize the environmental impacts arising from construction activities, products and services, in addition to those identified on the EIA Report. Environmental aspects were identified and evaluated in a systematic and comprehensive approach following the JV standard procedures. With the intend to helps JV to identify and assess the Environmental Aspects (EAs) that can be controlled directly, and those that it can be influenced taking into account planned or new developments, or new or modified activities, products and services during execution of the Project.

11.1

Methodology Upon the award of Contract to Maeda-CREC-SELI Joint Venture, a detailed and comprehensive Environmental Impact Assessment in addition to those environmental impacts specifically identified in the EIA, EM&A and EP, will be conducted by the Environmental Officer to identify all the potential environmental impacts that will be generated from the execution of works.Maeda-CREC-SELI Joint Venture will develop generic Construction Environmental Guidelines (CEG) to address various impacts potentially arising from construction works. The CEG, shown in Attachment 4, forms a basis for considering corresponding mitigation measures against each predictable and specified potential significant impact generated by the construction activities. Whereby a specific schedule of significant impacts including those environmental impacts specifically identified in the EIA, EM&A and EP, and appropriate control and mitigation measures to avoid or minimize the nuisance will be developed for implementation and monitoring by the project environmental team.

11.2

Scope of Works The scope of Works comprises but not limited to the following: (a) (b) (c) (d) Design and construction of the Main Tunnel of about 5.1km long with an internal diameter of 6.5m including man and vehicle access and a dry weather flow channel; Design and construction of a 4.5m internal diameter Adit Tunnel for Intake 1-2 and a 5.5m internal diameter Adit Tunnel for Intake 1-3, including man and vehicle accesses and dry weather flow channels within the Adit Tunnels; Design and construction of man access adits, deaeration chambers, vertical drop shafts, air vent shafts, man access shafts and vortex shafts each for Intakes 1-2 and 1-3; Construction of three intakes: (i) Intake I-I at the intersection of two existing surface channels at the junction of Wo Yi Hop Road and Shing Mun Road; (ii) Intake 1-2 at the existing stream bed adjacent to a bridge at Lo Wai; (iii) Intake 1-3 at the existing stream bed at Tso Kung Tam, about 350m off Route Twisk;Page 31 of 67

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(e) (f)

Construction of Outfall O-1 at Yau Kom Tau, Tsuen Wan; Construction of associated slope stabilization works and other ancillary works for Intake I-1, Intake I-2, Intake I-3 and Outfall O-1; (g) Construction of the drainage improvement works in the local area of Lo Wai; (h) Provision of the Landscape Softworks and the Establishment Works including tree felling, tree transplanting, tree protection and compensation planting; (i) Design, construction and removal of all Temporary Works required for construction of the permanent Works, including the parts of the permanent Works designed by the Supervising Officer; (j) Topographical and boulder survey at Lo Wai and Tso Kung Tam in the vicinity of Intakes I-2 and I-3 in accordance with the Employer's drawings; and topographical survey for Lo Wai drainage improvement works in accordance with the Employer's drawings; (k) Condition survey of all existing buildings, structures, slopes, roads, utilities, retaining walls, facilities and the like within the Site to be affected or potentially affected by the construction of the Works; (l) Assessment, monitoring, design and construction of any protective measures required to limit ground movements and vibrations to prevent damage to the Existing Buildings and Structures (EBS) including, but not be limited to, existing buildings, structures, tunnels, slopes, roads, utilities, retaining walls, parks, pavements, streets furniture and other man-made facilities; (m) Undertake the strengthening works within the existing WSD Tai Lam Chung Water Tunnel No.3; (n) Design, supply, install, calibrate, monitor, protect, maintain, report and remove of geotechnical instrumentations, including those for the existing WSD Tai Lam Chung Water Tunnel No.3; (0) Design of protective measure to guard against any damage/adverse effects to the existing trees within the Site which are not required to be transplanted or felled; (P) Design, construction, testing and commissioning, operation, maintenance and subsequent removal of temporary drainage and sewerage diversions; (q) Liaison with utility undertakings and arrangement of permanent and/or temporary diversions of the existing utilities during the course of the Works; (r) Close liaison with all relevant authorities and utility undertakings having works and/or facilities to be affected or potentially affected by the execution of the Works to ensure that the design, construction and commissioning of the Works is carried out to their satisfaction; (s) Take over from the Employer, record and report the readings and maintain and repair/replace if necessary, all piezometers and standpipes installed within the Site; (t) Design, construct, testing and commissioning of the communication system for the tunnels; (u) Design, supply, install, calibrate, monitor, protect, maintain and report flow measurement devices in the streams / channels / tunnel / box culvert / sea at Intakes I-1, I-2, I-3 and Outfall O-1; (v) Develop, implement, operate and maintain a tunnel data management system (TDMS).The proposed tunnel section flows from the junction of Shing Mun Road and Wo Yi Hop Road and discharges to south of Yau Kom Tau underneath Castle Peak Road. Page 32 of 67

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11.3

Identification of Potential Environmental Aspects/ Impacts Upon the award of Contract, the Environmental Officer shall assess the current version of Environmental Aspects: Generic Checklist (EAGC) that is maintained by Maedas Quality and Environmental Manager.

11.3.1

Preliminary AssessmentThis Project is a Designed Project defined under the Environmental Impact Assessment (EIA) Ordinance. Preliminary assessment of potential environmental impacts has been conducted to determine the significant aspects and environmental impacts, with the proposed suitable means of control or mitigation measures to avoid or minimize the nuisance from the execution of works by the Employer. Details of the Environmental Impact Assessment Report (Ref. EIA/108/2005) are accessible on the EPD web site.

11.3.2

Work Phase Assessment In addition to the above, during the construction period, a work phase risk assessment that is associated with environmental and safety aspects will be conducted and incorporated into the preparation of method statement for particular construction activities. The assessment will aim at determining the appropriate control and mitigation measure of the potential environmental impacts. Hence method statements could serve as the logical plans specifying the mitigation measures in reducing and abetting of the environmental impacts arising from the execution of Works.

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11.4 Environmental Significant Aspect/ Impact In additional to the major environmental Impacts recommended in the Environmental Impacts Assessment (EIA) Report, additional environmental impacts may be generated from the proposed construction methods. Through the identification of Environmental Aspects derived from construction activities, respective operational controls for significant aspects could be developed and a schedule of items to be covered for regular checking and inspection throughout the Contract will be maintained. The potential major/ significant environmental impacts of the Project are summarized as follows:-

Air Noise Water Waste Ecology Cultural Heritage Fisheries Dangerous and Hazardous Goods Other Environmental Aspects etc.

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12.

NUISANCE ABATMENT/ MITIGATION MEASURES By the same principle, mitigation measures identified from work phase assessment that are additional to those recommended and proposed under the Environmental Impact Assessment Report will be implemented to alleviate all identified environmental impacts/ constraints associated with the execution of the Project to acceptable levels. Detailed descriptions of the proposed mitigation measures and preventive actions and corrective actions for the major / significant environmental aspects are discussed and summarized below. A Location plan of nearby sensitive receivers or features (including residents, watercourse and natural environment) likely to be affected by the construction activities is enclosed in Attachment 5.

12.1

Air

Applicable Licence and Statutory Requirements

The main legislative instrument to control air quality within Hong Kong is the Air Pollution Control Ordinance (APCO, (Cap. 311)) and its subsidiary regulations applicable to this EMP which includes: Air Pollution Control (Smoke) Regulations; Air Pollution Control (Appeal Board) Regulations; Air Pollution Control (Specified Processes) Regulations; Air Pollution Control (Fuel Restriction) Regulations; Air Pollution Control (Vehicle Design Standards) (Emission) Regulations; Air Pollution Control (Motor Vehicle Fuel) Regulation; Air Pollution Control (Open Burning) Regulation; and Air Pollution Control (Construction Dust) Regulation.

The following table summarizes the required licence for the project construction and their status. Registration & Licensing Requirement Notification of commencement of Works under APCO License for Specified ProcessPage 35 of 67

Current Status Submitted under cover of DC200712/M45/100/00152 dated 02 Jan 2008 Not required for this work

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List of activities on the Site that will cause air pollution are:1. Tunneling; 2. Site formation at Outfall O-1 & Intake I-3 including bulk excavation, soil nailing and

Removal of boulders;3. Piling work at Outfall O-1, Intake I-1, I-2 & I-3 including temporary & permanent soldier

piles & temporary pipe piles;4. Pipe jacking at Intake I-2; 5. Excavation at the Outfall and Intake sites including temporary / permeation grouting; 6. Operation of ancillary equipment, e.g. air compressor, generator, material

unloading/loading and feeding system. Particular site abetment measures corresponding to the above activities: 1. The ventilation system for tunneling is equipped with a dust scrubber for passage of air from the cutterhead. 2. A water spray system will be provided at the excavation work place to suppress dust emission. Sprinkling of water with the aid of tarpaulin sheet will be provided for soil nail drilling works. 3. A water spraying system will be provided to reduce the dust generation, Dust emission issues will further be controlled by adopting the augering method, Tarpaulin and sand bags will be used to cover and surround the drill pits during installation of composite pile or soldier pile by down the hole method. 4. Excavation and pipe jacking works The excavation/pipe jacking work will be carrying out underground, water spray system will be provided at the excavation work place to suppress all the flying dust, to avoid the generation to the atmosphere. A ventilation fan will be installed at an open area. Fresh air will be blown to the excavation face via a ventilation duct. The ventilation system is to be provided with a suitable silencer and filter. 5. All cement/ grout debagging and mixing to be undertaken within an enclosure consisting of at least three sides and a roof to avoid cement fines being discharged into the atmosphere. 6. General plant and equipment operation: Site access roads will be kept damp by water spraying to minimize dust generation. All the dump trucks loaded with dry excavated materials for disposal will be covered by automatic mechanical cover before leaving the sites. Wheel washing basin and water treatment plants will be provided at the exit of the sites to clean the wheels of all trucks before they are allowed to leave the site area. All stockpiles of dry excavated materials will be covered with tarpaulin sheets. All exhausts of plant and equipment will be regularly repaired and maintained to their optimum working conditions. Plants shall be switched off when not in use or idling.

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General Air Pollution Minimisation and Mitigation Measures 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. To implement good site practice during the course of the Contract to minimize cumulative dust impact; Dust levels are expected to be reduced by over 75% if the construction site can apply water four times every day together with strict implementation of dust suppression measures as stipulated in the Air Pollution Control (Construction Dust) Regulation,. Where a site boundary adjoins a road, streets or other area accessible to the public, hoarding of not less than 2.4m high from ground level will be provided along the entire length except for a site entrance or exit; Effective dust screens, sheeting or netting will be provided to enclose the working area whilst dust emitting activities are being undertaken. Dump trucks for material transport will be totally enclosed by automatic mechanical cover; Any excavated dusty materials or stockpile of dusty materials will be covered entirely by impervious sheeting or sprayed with water so as to maintain the entire surface wet, and recovered or backfilled or reinstated within 24 hours of the excavation or unloading; Working area of excavation will be sprayed with water immediately before, during and immediately after the operations so as to maintain the entire surface wet; Stockpile of dusty materials will be either covered entirely by impervious sheeting, placed in an area sheltered on the top and the 3 sides; or sprayed with water so as to maintain the entire surface wet; Dusty materials remaining after a stockpile is prior to any loading, unloading or transfer operation will be sprayed with water so as to maintain the dusty material wet ; The load of dusty materials carried by vehicle leaving a construction site will be covered entirely by clean impervious sheeting to ensure that the dusty materials do not leak from the vehicle; Vehicle speed will be limited to 10 kph except on completed access roads to minimize fugitive dust emission; At exit point leading out of the construction sites automatic wheel washing facilities, if applicable with high pressure jet, will be provided, and vehicles will be washed to remove dusty materials from its body and wheels before leaving the construction sites;; The area where vehicle washing takes place and the section of the road between the washing facilities and the exit points will be paved with concrete, bituminous materials or hardcores; and kept clear of dusty materials or sprayed with water so as to maintain the entire road surface wet; Handling of cement de-bagging process will be in enclosed environment; A stock of more than 20 cement bags will be covered or sheltered;

14. 15.

Preventive Action 1. 2. At all times maintain a clean and tidy site condition so that there is no loose debris, packaging or other material capable of being transported by wind. Regular site inspections and surveillances will be conducted by the Environmental Officer and Environmental Supervisors throughout the construction period to monitor thePage 38 of 67

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dust emission conditions especially at the work areas and outside hoarding area during day time and all area after each working day. The inspection details are mentioned in the Section 8.1 Impact Monitoring For monitoring the effectiveness and efficiency of the air pollution abatement measures implemented on Site, the following baseline and impact monitoring programme will be implemented during construction phase by the Environmental Team in accordance with the EM&A Manual: Type of Monitoring Baseline Impact Details 1 hour TSP 1 hour TSP Frequency 3 times per day 3 times every 6 days Duration 14 consecutive days During Construction Phase Monitoring Locations ASR 1 - Sik Sik Yuen Ho Fung College ASR 3 - Hong Hoi Chee Hong Temple ASR 8 - Beach Tower (Long Beach Gardens) ASR 9 - Greenview Terrace (Block 1) For the proposed location plan for air monitoring stations please refer to Attachment 6. Others All diesel operated plant and equipment on site are required to run on Ultra-Low-Sulphur Diesel (ULSD) fuel that contains not more than 0.005% by weight of sulphur. All deliveries and consumption of ULSD diesel on site shall be recorded by the Environmental Officer/ Supervisor with details of date of delivery, name of supplier, quantity and plants used etc. on the Summary for Delivery of ULSD form, which is included in Attachment 13. The summary is required to be submitted to the Supervisor Officer monthly for review. 12.2 Noise Tunneling works are expected to be undertaken over the 24 hours period each day. The depth of the tunnel ranges from 7m to 200m below ground level. With regard to 24-hour working, a Construction Noise Permit (CNP) will be necessary for the construction during restricted period as the main tunnel will be driven by TBM (Working 24 hours). During restricted hours, construction activities will be contained within the tunnel. All material excavated during restricted hours will be stockpiled and will be removed off site only during normal working hours (7am to 7pm). These measures will significantly reduce noise generated from tunnel construction during night time.

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Applicable Licence and Statutory Requirements It is noted that Regulations under the Noise Control Ordinance (NCO, (Cap. 400)) are made from time to time. Those currently in force are: Noise Control (Hand Held Percussive Breakers) Regulations; Noise Control (Air Compressors) Regulations.

Other related reference: Technical Memorandum on Noise from Construction Works other than Percussive Piling (TM1) The following table summarizes the required licence for the project construction and their status. Registration & Licensing Requirement Current Status

Noise Labels for Compressors & Hand Held Breakers Valid Construction Noise Permits for any works in restricted To be processed upon contract hours award Noise impacts that arise from general construction works during normal working hours (i.e. 0700 to 1900 hours on any day not being a Sunday or public holiday) at the openable windows of noise sensitive buildings are to be assessed as per the guidelines contained in the TMEIA. The recommended noise standards are 75dB(A) for domestic premises, 70dB(A) for educational institutions, 65dB(A) during examinations, which shall be measured immediately 1 metre outside the external wall/ window of the closest sensitive noise receiver, like residential building and school. If construction works cannot be carried out in normal working hours construction with the use of Powered Mechanical Equipment (PME) Construction Noise Permit (CNP) shall be obtained from the EPD. The EPD is guided by the GW-TM when assessing such an application. EPD will compare the Acceptable Noise Levels ANLs, as promulgated in the GW-TM, and the Corrected Noise Level (CNLs) (after accounting for factors such as barrier effects and reflections) associated with the proposed PME operations. A CNP will be issued if the CNL is equal to or less than the ANL. The ANLs are related to the noise sensitivity of the area in question and different Area Sensitivity Ratings (ASR) have been drawn up to reflect the background characteristics of different areas.

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Acceptable Noise Levels (ANL, Leq, 5 min dB(A)) Time Period All days during the evening (1900-2300 hours) and general holidays (including Sundays) during the day and evening (0700-2300 hours) All days during the night-time (2300-0700 hours) Area Sensitivity Rating A 60 B 65 C 70

45

50

55

Determination of the Area Sensitivity Ratings for the NSRs in the EIA report has been made with reference to relevant TMs. For the NSRs at Intake 1 and outfall 1, an Area Sensitivity Rating of C is assigned as the area is classified as the urban area and directly influenced by road traffic noise from major roads (i.e. Cheung Pei Shan Road and Tuen Mun Road). For the NSRs at Intakes 2 and 3, an Area Sensitivity Rating of A is assigned as the area is classified as low density area and not influenced by road traffic noise from main roads. Ground-borne Noise and Vibration TBM and breaking activities will be used to excavate rock. The interaction between the operation of equipment and the rock will induce ground borne noise and vibration, the varying extent depending on the geological conditions and equipment used. TM for the Assessment of Noise from Places other than Domestic Premises, Public Places or Construction Sites (PL-TM) under the NCO stipulates that noise transmitted primarily through the structural elements of building, or buildings, shall be 10 dB(A) less than the relevant ANLs. Based on the principle for ground borne noise criteria (i.e. taking account of the minus 10dB (A) requirement under the NCO PL-TM), ground borne construction noise levels inside domestic premises and schools relying on open window for ventilation will be limited to 65dB(A) and 60dB(A) respectively, with reference to the daytime airborne noise criterion of 75dB(A) and 70dB(A) in accordance with TMEIA. In the evening (1900 2300hrs) and during night time (2300 0700hrs), ground borne noise level will be limited to 10dB(A) below the respective ANLs for the Area Sensitivity Rating category of A, B and C at the NSRs along the proposed project. A summary of these criteria is

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Ground borne Noise Criteria (ANL, Leq, 5 min dB (A)) Time Period Area Sensitivity Rating A All days during the evening (1900-2300 hours) and general holidays (including Sundays) during the day and evening (0700-2300 hours) All days during the night-time (2300-0700 hours) B C

50

55

60

35

40

45

All works shall be stopped immediately if the maximum noise level exceeds the limit and necessary mitigation measures shall be taken to reduce the noise levels to within the acceptable range. In the assessment, practicable direct noise mitigation measures have been identified and recommended to achieve the noise criteria as far as practicable. Provision of indirect technical remedies in the form of noise insulation, shield, barriers or enclosure is considered. List of activities on the Sites that will cause noise pollution 1) Tunneling and its backup system, e.g. conveyor belt system, hopper 2) Site formation at Outfall O-1 & Intake I-3 including bulk excavation, soil nailing and removal of boulders; 3) Piling work at Outfall O-1, Intake I-1, I-2 & I-3 including temporary & permanent soldier piles & temporary pipe piles; 4) Pipes jacking at Intake I-2; 5) Excavation at the Outfall and Intake sites including temporary / permeation grouting; 6) Operation of ancillary equipment, e.g. air compressor, generator, bulk material Loading/unloading and feeding system. Particular site abetment measures corresponding to the above activities: For 1) tunneling and its back-up system, A noise enclosure constructed with noise absorbent acoustic materials as the internal lining will be provided to enclose the portal, gantry crane system and the spoil hoppers. The set-up will be adequate to reduce noise level to enable tunneling work at night. For activities 2) to 6), (i) (ii) (iii) Movable noise barriers will be provided to enclose / screen the noise generating activities as far as practicable; Noise labels will be displayed on each noise concern areas where the noise level at these areas may be exceeding required level from time to time during operation; All staff are required to wear a proper ear protectors at the noise concerned workingPage 42 of 67

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(iv) (v)

area as needed, e.g. during breaking of rock; Noise measuring devices will be provided at the sensitive locations to monitor the noise levels; Alert, alarm and action system is adopted;

General Noise Minimisation and Mitigation Measures

The construction of Works may lead to noise generation if noise mitigation measures are not undertaken. It is predicted that various construction activities associated with the earthworks, excavation and construction may cause temporary impacts without mitigation. Best practice measures, Quiet plant and mobile noise barriers are recommended to suppress noise emissions from construction activities where noise exceedance is anticipated. Appropriate mitigation measures such as the use of quiet equipment and movable barriers will be developed to ensure that noise can be reduced to acceptable levels without causing programme delays. 1. Good site practice and noise management can significantly reduce the impact of construction site activities on nearby NSRs. The following package of measures will be followed during construction:

Only well-maintained plant will be operated on-site and plant will be serviced regularly during the construction period; Machines and plant that may be in intermittent use will be shut down between work periods or will be throttled down to a minimum; Plant known to emit noise strongly in one direction, should, where possible, be orientated to direct noise away from the NSRs; mobile plant should be sited as far away from NSRs as possible; and Material stockpiles and other temporary structures should be effectively utilised, where practicable, to screen noise from on-site construction activities. All hoods cover panels and inspection hatches of powered mechanical plant such as generator, air compressors etc. shall be closed during operation. Application of properly designed silencers, mufflers, acoustically dampened panels and acoustic mats/ sheds consider being adapted to operating noisy plants. Summary of noise emission labels for QPME used on site will be maintained updated by the Environmental Engineer or Supervisor. Temporary/ movable full height noise barriers, will be constructed to block the line of sight to the sensitive receivers if found necessary. The barriers will be constructed using acoustic materials or materials to achieve the best noise reduction performance. Please refer to Attachment 7 for the sketch of Typical Noise Barrier.

2.

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3. Tunnel Excavation Work

For the tunnel excavation, it is anticipated that excavation will be carried out well within the main tunnel within the initial length (approx. 25m for the Launching Chamber), and at the openings leading to the connection adits tunnels, however, appropriate noise enclosures will be also provided to further minimize the noise nuisance to the nearby receivers if necessary. To alleviate the construction noise impact at the tunnel Portal located at Outfall O-1 where 24-hour working is to be undertaken, noise enclosures shall be constructed with appropriate dimensions, approximately 10mH x15mW x 45mL will be extended to cover the openings of the tunnel structure and temporary ancillary structures. To enhance the noise reduction effect, absorbent acoustic panels with noise absorbent acoustic materials as the internal lining or for noise enclosure will be used. It is envisaged that the noise impact can be reduced by max. 35dB. Major plant and equipment like the TBM, Overhead Crane, Belt Conveyor, Diesel Loco, Gravel Loader (Small belt conveyor) including the tunnel ventilation system and the muck pit area will be housed inside the noise enclosure. Please refer to Attachment 8 for the layout and sketch of the acoustic noise enclosure at the Tunnel portal. Prior to the erection of noise enclosure for the TBM, temporary noise barriers shall be erected to mitigate noise impact for construction of access road from Castle Peak Road leading to the Outfall O-1, site formation, tunnel portal formation, and various ancillary works.

Preventive Action 1. Regular site inspections and surveillance will be conducted throughout the construction period to monitor the construction noise conditions especially at the work areas where noisy equipment is in operation. The inspection details are mentioned in Section 8.1 above. 2. A Permit to Work System will be implemented strictly in accordance with the JVs standard procedure for all works within restricted hours , i.e. from 1900-07:00 hours and all time on Sundays and general holidays for general works other than percussive piling. We will ensure that works are executed with proper supervision under a valid CNP and in compliance with the conditions specified under the CNP. 3. Ad hoc/ un-announced inspections will be arranged by the Environmental Officer/ Supervisor to verify and ensure the compliance of permits condition in respect of plant and work schedules during restricted works hours. Non-conformance reports will be raised for any deficiencies. Please refer to Section 8.2 above. 4. Before the commencement of any work that may generate a significant noise impact, method statements shall be submitted to the Supervising Officer for approval providing details such as methods of working, equipment and sound-reducing measures (e.g. uses of silenced type of equipment, etc.) intended to be used.Page 44 of 67

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EMP 04 21OCT 12


Impacts Monitoring For monitoring the effectiveness and efficiency of the noise pollution abatement measures implemented on Site, the following baseline and impact monitoring programme will be implemented during construction phase by the Environmental Team in accordance with the EM&A Manual: Type of Monitoring Baseline Details A-weighted level LAeq, LA10 and LA90 Frequency Daily in a sampling period of 30 minutes between 0700 and 1900. Duration 2 weeks Monitoring Locations NSR 1 - Sik Sik Yuen Ho Fung College at Intake 1 NSR 3 - Hong Hoi Chee Hong Temple at Intake 2 NSR 6 Squatters at Intake 3 NSR 8 - Beach Tower (Long Beach Gardens) at Outfall 1 NSR 9 - Greenview Terrace (Block 1) at Outfall 1 3 months

Documents

Construction Environmental Management Plan ENC023 Workshop 1.0