Method Statement and Risk Analysis Guidelines

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Contents

Page Introduction 2 Scope 2 Roles and Responsibilities 3 Risk Management Process 5

Figure 1 – The Risk Management Process 6 1 Preparation 7 2 Hazard Identification 7 3 Risk Evaluation 8

Table 1 – Severity categories and description 9 Table 2 – Likelihood categories and description 9 Table 3 – Risk matrix to determine Risk Level 10

4 Risk Control 10 Table 4 – Acceptability of risk and recommended actions 11 Figure 2 – Hierarchy of Control Measures 11

5 Record Keeping 13 6 Implementation and Review 13 Glossary 15 Appendix A: Instructions for Activity-Based Risk Assessment 16 Appendix B: Worked Examples 20 Appendix C: Instructions for Trade-Based Risk Assessment 23 Appendix D: Worked Examples (Trade-Based Risk Assessment) 26

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INTRODUCTION Risk Management is a key component of the new safety and health management framework underpinned by the new Workplace Safety and Health Act (WSH Act). The WSH Act aims to reduce risks at source by making stakeholders accountable for managing the risks they create. Risk Management entails: 1) Risk assessment of any work activity; 2) Control and monitoring of such risks; and 3) Communicating these risks to all persons involved. These requirements are enshrined in the WSH (Risk Management) Regulations, which came into operation 1 September 2006. Risk Assessment is an integral part of risk management. It is the process of: 1) Identifying and analysing safety and health hazards associated with work; 2) Assessing the risks involved; and 3) Prioritising measures to control the hazards and reduce the risks. Every workplace, including factories, should conduct risk assessments for all routine and non-routine work undertaken.

SCOPE This set of guidelines outlines the risk management process and within it, provides a 3-step process for Risk Assessment:

Applying these basic principles of risk assessment will help you meet your obligations under the legislation. Depending on the industry and nature of work activities, companies can adopt the Activity-Based risk assessment approach described in this Guide.* Alternatively, other approaches can be used to achieve the same or higher levels of protection against risks in your workplace. The information in this Guide will be particularly useful for small and medium enterprises. Larger establishments, including process chemical plants with complex processes and operations, may adopt other established methods of hazard

* For more details and examples, please refer to the Appendix.

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2 HAZARD IDENTIFICATION

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identification and risk analysis commonly used for process plant risk assessment, while still applying the basic principles in this Guide.

ROLES AND RESPONSIBILITIES Risk management duties are imposed on every employer, self-employed person and principal (including contractor and sub-contractor). These parties must take all reasonably practicable measures to ensure that the workplace is safe to every person within its premises. Where contractors and suppliers undertake work for their customers, they must take all reasonably practicable measures to eliminate or reduce the risk that may be posed by their machinery, equipment or hazardous substances to as low as reasonably practicable. Contractors and suppliers must also provide information of any machinery, equipment or hazardous substances to their customers who may require the information to conduct risk assessment in their workplaces. For example, contractors and suppliers should provide operation manuals, maintenance manuals, safety data sheets etc. RISK ASSESSMENT TEAM Risk assessment is never a one man show; it should be conducted by a multi-disciplinary team who have a thorough knowledge of the work to be undertaken. Team members should include management staff, process or facility engineers, technical personnel, supervisors, production operators, maintenance staff and safety personnel if available. The risk assessment team should also include contractors/suppliers personnel who are involved with the work, whenever necessary. The team leader should have undergone training in risk assessment. A safety consultant trained and has experience in job safety analysis and risk management could be engaged to assist in the conduct of risk assessment. The Employer should: 1) Designate, assign, appoint or engage a competent person leading a team of

personnel (including contractors) associated with the process or activity to conduct risk assessments;

2) Ensure that the risk control measures are implemented without undue delay after the completion of risk assessment;

3) Inform all persons working at the workplace of the risks, and the means to minimise or, where possible, eliminate the risks;

4) Provide a risk assessment register to record the findings of risk assessment;

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5) Endorse and approve the risk assessments conducted; 6) Keep risk assessment records for inspection for at least three years from the

date of the assessment; and submit the records to the Commissioner for Workplace Safety and Health if the Commissioner so requires;

7) Review and update the risk assessment at least once every three years or whenever there is a significant change in the work, or after an incident involving the work process;

8) Ensure that all employees are aware of the risk assessment for the work activity they carry out;

9) Develop and implement safe work procedures (SWPs) for work which poses safety or health risks to workers; and

10) Keep a written description of SWPs and produce this to the inspector for inspection when requested.

The Team Leader should: 1) Have adequate knowledge of the risk assessment method; 2) Recommend appropriate risk control measures to reduce or eliminate the risks

identified; 3) Prepare a record of the risk assessment for the employer after completion of the

assessment; and 4) Assist management in monitoring the effectiveness of risk control measures after

their implementation. Employees should: 1) Participate in the risk assessment or assist in conducting the risk assessment; 2) Adhere to SWPs established to reduce any safety and health risks in the

workplace; and 3) Inform their supervisors of any shortcomings in the SWPs or risk control

measures. Contractors and Suppliers Whenever necessary, contractors and suppliers should work with the risk assessment team to identify hazards, evaluate and control the risks that machinery, equipment or hazardous substances may pose.

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RISK MANAGEMENT PROCESS Unless the workplace or worksite is not ready, the risk assessment team should visit the workplace or worksite to ensure that all work areas are covered, including routine and non-routine operations. Routine operations include activities such as preparatory and troubleshooting work activities. Non-routine operations include commissioning, repair and maintenance of plants. The team should also consider various environmental situations, e.g., weather and soil conditions, where these operations are carried out. Other methods of risk assessments may be adopted, but all methods should include the 3 basic steps of:

and the selection of control measures must be based on the principles of Hierarchy of Control. The outcome of the risk assessment conducted, regardless of the method used, should be effective risk control measures.

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Figure 1 – THE RISK MANAGEMENT PROCESS

Risk Assessment (RA)

Estimate risk levels based on identified hazards.

Prioritise the hazards to be controlled

6 Implementation

& Review

Formulate control measures according to the Hierarchy of Controls: • Elimination • Substitution • Engineering

controls • Administrative

controls • PPE

Analyse and evaluate residual risk

Keep risk assessment reports for at least 3 years.

Review risk assessments:

• Once every 3 years;

• Whenever new information on OSH risks surfaces;

• When there are changes to work processes and / or;

• After any accident / incident.

Form RA Team

Gather relevant information

Identify hazards

Identify potential accidents / incidents

COMMUNICATION

1 Preparation

2 Hazard

Identification

3 Risk

Evaluation

4 Risk

Control

5 Record Keeping

RISK CONTROL

RISK EVALUATION 2 HAZARD

IDENTIFICATION 1 3

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1 PREPARATION Prior to conducting a risk assessment, the following information should be obtained as far as possible: • Plant layout plan • Process flowchart • List of work activities in the process† • List of chemicals, machinery and / or tools used • Records of past incidents and accidents • Relevant legislation, codes of practice or specifications • Observations and interviews • Inspection records • Details of existing risk controls • Health and safety audit reports • Feedback from staff, clients, suppliers or other stakeholders • Safe work procedures (SWPs) • Other information such as safety data sheets (SDSs), manufacturer’s instruction

manual • Copies of any relevant previous risk assessments Based on the work process, the steps of each work activity will be listed out in sequence. In this Guide, each step of the process is referred to as a work activity.

This starts off the risk assessment process. 2 HAZARD IDENTIFICATION

Based on the information gathered on the process, hazards can be identified for each work activity. Hazard identification is perhaps the most important step in risk assessment because hazards can only be controlled if they are identified. Hazard identification involves identifying the hazards associated with each work activity and the type of potential accidents/incidents that can result from the hazards. Hazard identification is then repeated for all work activities of the process.

† In this Guide, the work process is divided into sequential steps, which are referred to as work activities.

Work Activity 1

Work Activity 2

Work Activity n

A work process broken down into n work activities

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The aim is to spot hazards, brainstorm on all the possible types of accidents, incidents and/or ill-health that can occur due to the hazard(s), and identify potential victims or persons-at-risk. To aid hazard identification, workplace safety and health hazards can be identified by considering: • Method of work e.g. repeated tasks and unsafe work practices • Electrical and mechanical hazards • Manual material handling e.g. lifting, pulling and pushing • Chemicals e.g. corrosive substances • Machinery e.g. unguarded machines • Temporary structures e.g. scaffolds • Environmental conditions, e.g. slippery surfaces, lighting, unstable soil conditions • Layout and location of equipment Possible types of accidents, incidents and ill health include (but not limited to):

• Person falling from height • Object falling from height • Slips or falls on the level • Electrocution • Asphyxiation • Drowning

• Noise induced deafness • Dermatitis • Collapse of structure • Fire and explosion • Struck by or against object • Soft tissue damage (sprains, strains)

Potential victims or persons-at-risk include: • Persons directly involved in the

operation • Visitors of the workplace

• Persons not directly involved in the operation

• Members of the public 3 RISK EVALUATION

Risk evaluation is the process of estimating the risk levels of the identified hazards and if the risks can be accepted. This is used as a basis for prioritising actions to control identified hazards and thereby, minimising safety and health risks. Risk evaluation consists of: 1) Identifying existing risk control measures; 2) Assessing potential severity of identified hazards; 3) Determining likelihood of occurrence of accidents, incidents and/or ill health

arising from identified hazards; and 4) Assessing risk levels based on the severity and likelihood.

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(1) Identifying existing risk control measures The presence of existing control measures should first be identified for each work activity of the process. By considering the effectiveness of the existing controls and the consequences that can occur should these controls fail; the risk of the activity can be assessed. Examples of risk control measures include engineering controls, SWPs and personal protective equipment (PPE). Risk has 2 parts:

I. Expected SEVERITY of the hazard; and II. LIKELIHOOD of the occurrence of the accident / incident or ill health; taking

into account the existing risk controls.

(2) Assessing potential severity of identified hazards Severity is the degree or extent of injury or harm caused by accidents/incidents arising from workplace hazards. Severity is classified into 3 categories: Minor, Moderate and Major (Table 1).

Table 1 – Severity categories and description Severity Description

Minor No injury, injury or ill-health requiring first aid treatment only (includes minor cuts and bruises, irritation, ill-health with temporary discomfort)

Moderate Injury requiring medical treatment or ill-health leading to disability (includes lacerations, burns, sprains, minor fractures, dermatitis, deafness, work-related upper limb disorders)

Major Fatal, serious injury or life-threatening occupational disease (includes amputations, major fractures, multiple injuries, occupational cancer, acute poisoning and fatal diseases)

As the severity of the hazard refers to the intrinsic or inherent nature of the adverse effect (e.g. cancer, amputation or fatal injury) that may result from the hazard, it does not depend on the controls in place. Therefore, in assigning the severity level, the existing controls should not be taken into account.

RISK

Severity Minor

Moderate Major

Likelihood Remote

Occasional Frequent

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(3) Determining likelihood of occurrence of accidents, incidents and/or ill health arising from identified hazards LIKELIHOOD of occurrence of an accident, incident or ill health is also classified into 3 categories: Remote, Occasional and Frequent (Table 2).

Table 2 – Likelihood categories and description

Likelihood Description

Remote Not likely to occur

Occasional Possible or known to occur

Frequent Common or repeating occurrence To minimise the subjectivity of estimating likelihood, in addition to looking at existing controls, the following sources of information should be considered:

• Past incident and accident records • Industry practice and experience • Relevant published literature

(4) Assessing risk levels based on the severity and likelihood Once severity and likelihood have been established, the risk level is determined using a 3 X 3 risk matrix. The risk level may be classified as low, medium or high and depends on the combination of severity and likelihood (Table 3). To determine the risk level, select the appropriate row for Severity and the appropriate column for Likelihood; the cell where they intersect indicates the Risk Level.

Table 3 – Risk matrix to determine risk level Likelihood

Severity

Remote Occasional Frequent

Major Medium Risk High Risk High Risk

Moderate Low Risk Medium Risk High Risk

Minor Low Risk Low Risk Medium Risk E.g. For Moderate Severity and Occasional Likelihood, the Risk Level is Medium. 4 RISK CONTROL

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Severity

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Based on the risk level determined in the risk evaluation step, risk controls should be selected to reduce the risk level to an acceptable level. This can be done by reducing the Severity and/or Likelihood. As indicated in the risk matrix in Table 3, when the risk level is High, effective and practicable risk controls must be implemented to reduce High Risk to at least Medium Risk. Table 4 shows the acceptability of risk and recommended actions for different risk levels, which can be used to guide the selection of risk controls.

Table 4 – Acceptability of risk and recommended actions Risk level

Risk Acceptability Recommended actions

Low Risk Acceptable

No additional risk control measures may be needed. However, frequent review may be needed to ensure that the risk level assigned is accurate and does not increase over time.

Medium Risk

Moderately acceptable

A careful evaluation of the hazards should be carried out to ensure that the risk level is reduced to as low as is practicable within a defined time period. Interim risk control measures, such as administrative controls, may be implemented. Management attention is required.

High Risk

Not acceptable

High Risk level must be reduced to at least Medium Risk before work commences. There should not be any interim risk control measures and risk control measures should not be overly dependent on personal protective equipment or appliances. If need be, the hazard should be eliminated before work commences. Immediate management intervention is required before work commences.

It is essential for risks to be eliminated or reduced “at source”. If a risk cannot be controlled completely by engineering measures, it is necessary to protect the employees by administrative control or personal protection. The control of hazards and reduction of risks can be accomplished by following the Hierarchy of Control Measures (Figure 2). These control measures are not usually mutually exclusive e.g. engineering controls can be implemented together with administrative controls like training and SWPs.

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ELIMINATION Elimination of hazards refers to the total removal of the hazards and hence effectively making all the identified possible accidents, incidents and ill health impossible.

This is a permanent solution and should be attempted in the first instance. If the hazard is eliminated, the risk associated of the hazard will be eliminated. SUBSTITUTION This involves replacing the hazard by one that presents a lower risk. E.g. Asbestos can be substituted with non-asbestos materials. ENGINEERING CONTROLS Engineering controls are physical means that limit the hazard. These include structural changes to the work environment or work processes, erecting a barrier to interrupt the transmission path between the worker and the hazard. E.g. Isolation or containment of hazards, machine guarding, manual handling devices/equipment etc. ADMINISTRATIVE CONTROLS These reduce or eliminate exposure to a hazard by adherence to procedures or instructions. Documentation should emphasise all the steps to be taken and the controls to be used in carrying out the activity safely. E.g. Permit-to-work systems, scheduling of incompatible works etc.

PPE Eg : Safety boots, helmet, glasses etc.

Figure 2 – Hierarchy of Control Measures

ADMINISTRATIVE CONTROL Eg: SWPs, effective training etc.

ENGINEERING CONTROL Eg: Use & maintain

a local exhaust ventilation system

SUBSTITUTION Eg : Substitute solvent-based paint with water-based paint

ELIMINATION Eg : Eliminate sharp

protrusions in work area

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PERSONAL PROTECTIVE EQUIPMENT (PPE) This should be used only as a last resort, after all other control measures have been considered, or as a short term contingency during emergency / maintenance / repair or as an additional protective measure. The success of this control depends critically on the protective equipment being chosen correctly, fitted correctly, worn at all times and maintained properly. Safe Work Procedures (SWPs) Arising from the risk assessment, SWPs for work which may pose safety and health risks should be established and implemented. The SWPs should include the safety precautions to be taken in the course of work and during an emergency, as well as the provision of PPE. Residual Risks Residual risks are the remaining risks after implementation of risk controls. The risk assessment team should ensure that residual risks are acceptable and manageable; and highlight the residual risks of each of the controls. For example, if the risk control involves the use of safety harnesses and lanyards (a type of PPE), one of the residual risks is that the workers may not anchor the lanyards to protect themselves. In this case, the risk assessment team may highlight training (administrative control) as a further measure to ensure that residual risks are further minimised. Once all the risk controls are selected and their residual risks highlighted, the risk assessment team needs to identify the action officers and follow-up dates. In this way, the specific action officers to implement the controls can be clearly identified, and the follow-up dates will help to ensure timeliness in implementation. 5 RECORD KEEPING A written description of the risk assessment must be kept for reference for 3 years. The Risk Assessment Form can be used for record keeping, training and reviewing. All risk assessment records should be concise and kept in a register. The records should include the following information: 1) Names and designations of risk assessment team members 2) Inventory of work activities by process or location, associated with machinery,

equipment and chemicals 3) Hazards identification for each work activity, and possible types of accident or

incident 4) Existing risk control measures 5) Risk level for each hazard

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6) Recommendations on additional risk controls required 7) Persons involved in implementing the measures on risk reduction 8) Signatures, date and designations of the persons conducting risk assessment 9) Signature, date and designation of management approving or endorsing the

assessment

6 IMPLEMENTATION & REVIEW The results of risk assessment must be approved and endorsed by the top management. The employer should as far as is practicable, implement the recommended risk control measures as soon as possible.

An action plan should be prepared to implement the measures. The plan should include a time line of implementation and responsibilities of persons implementing the safety and health control measures. The plan should be monitored regularly until all the measures are implemented.

Regular review of the risk assessment plan is critical. While employers are required to review their plans every three years, a review should take place whenever:

1) New information on safety and health risks surfaces; 2) There are changes to the area of work and / or 3) After any accident / incident.

The risk assessment team should undertake the same 3 steps (hazard identification, risk evaluation and risk control) when conducting a risk assessment review.

Regular auditing is required to ensure that risk control measures have been implemented and are functioning effectively.

COMMUNICATION Throughout the risk management process, communication amongst stakeholders at every step is essential. Communication: • Engages and involves people to contribute to the risk management process • Provides clarity on the risks, processes, control measures, perceptions etc. • Helps stakeholders to make informed decisions • Enables stakeholders to know the risks they face and the appropriate control

measures to implement to reduce the risks.

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GLOSSARY

Contractor A person engaged by another person (referred to as principal) otherwise than under a contract of service –

a) to supply any labour for gain or reward; or b) to do any work for gain or reward,

in connection with any trade, business, profession or undertaking carried on by the other person.

Hazard Anything or any source or situation with the potential to cause harm or injury. Hazards may be classified as: • Chemical, e.g. acids, alkalis, solvents; • Biological, e.g. bacteria, fungi and viruses; • Electrical, e.g. frayed wires; • Ergonomic, e.g. repetitive work, awkward postures, prolonged standing; • Mechanical, e.g. damaged equipment, forklifts, cranes, power presses; • Physical, e.g. excessive noise, heat, radiation;

Likelihood Probability or frequency of an event occurring

Occupational Safety & Health Management System (OSHMS) OSHMS is part of the overall management system that facilitates the management of the safety and health risks associated with the business of the organization. This includes organizational structure, planning activities, responsibilities, practices, procedures, processes and resources for developing, implementing, achieving, reviewing and maintaining the organisation’s OSH policy. (Source: SS 506: OSH Management System)

Principal A person who, in connection with any trade, business, profession or undertaking carried on by him, engages any other person otherwise than under a contract of service –

a) to supply any labour for gain or reward; or b) to do any work for gain or reward.

Risk Likelihood that a hazard will cause a specific harm or injury. More specifically, it is the likelihood of accidents or ill-health occurring at work and the consequences of such occurrences.

Risk Assessment OSH risk assessment is the process of identifying hazards, evaluating the risks, and determining the appropriate options for risk control.

Risk Management OSH risk management involves the assessment of risks associated with any work activity or trade, control and monitoring of such risks, as well as communicating these risks.

Safe Work Procedures (SWPs) Step-by-step procedures of doing or carrying out work safely.

Self-employed person A person who works for gain or reward otherwise than under a contract of service, whether or not employing others.

Severity Degree or extent of injury or harm caused by hazard, or as a result of an accident.

Subcontractor A person engaged by any contractor or subcontractor –

a) To supply any labour for gain or reward; or b) To do any work for gain or reward,

which the contractor or subcontractor has been engaged as contractor or subcontractor.

APPENDIX A

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INSTRUCTIONS TO EMPLOYERS & PERSONS CONDUCTING RISK ASSESSMENT

1. Before completing the risk assessment form, complete the Inventory of Work Activities Form. You may use one inventory form for each work process.

2. Outline the process workflow and indicate the process location under the “Process / Location” column.

3. For each work process, list all activities (routine and non-routine) in sequence under the “Work Activities” column. You may use one Risk Assessment Form for each work process.

4. Record the names and designations of risk assessment team members in the Risk Assessment Form.

5. Start with the first activity listed in the Inventory of Work Activities Form. Record this in columns 1a and 1b of the Risk Assessment Form.

6. Identify the hazards associated with each activity and record these in column 1c. 7. For each hazard identified, determine the consequence (possible accident / ill

health and persons-at-risk) and record this in column 1d. 8. If there is any existing control measure(s) for the hazard, record this in column 2a. 9. Determine the severity of the accident or incident or ill health based on the table

below, and record this in column 2b.

Severity Description

Minor No injury, injury or ill-health requiring first aid treatment only (includes minor cuts and bruises, irritation, ill-health with temporary discomfort)

Moderate Injury requiring medical treatment or ill-health leading to disability (includes lacerations, burns, sprains, minor fractures, dermatitis, deafness, work-related upper limb disorders)

Major Fatal, serious injury or life-threatening occupational disease (includes amputations, major fractures, multiple injuries, occupational cancer, acute poisoning and fatal diseases)

10. Taking into consideration the existing control measure(s), estimate the likelihood of occurrence of each accident or incident or ill health based on the table below, and record this in column 2c.

Likelihood Description

Remote Not likely to occur

Occasional Possible or known to occur

Frequent Common or repeating occurrence

11. Based on the severity and likelihood, assign the Risk Level for each hazard using

the risk matrix below, and record this in column 2d.

APPENDIX A

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Likelihood Severity

Remote Occasional Frequent

Major Medium Risk High Risk High Risk

Moderate Low Risk Medium Risk High Risk

Minor Low Risk Low Risk Medium Risk

12. Based on the Risk Level assigned, suggest appropriate risk control measures (see table below) and record these in column 3a following the hierarchy: Elimination, Substitution, Engineering Controls, Administrative Measures and Personal Protective Equipment.

Risk level

Risk Acceptability Recommended actions

Low Risk Acceptable

No additional risk control measures may be needed. However, frequent review may be needed to ensure that the risk level assigned is accurate and does not increase over time.

Medium Risk

Moderately acceptable

A careful evaluation of the hazards should be carried out to ensure that the risk level is reduced to as low as is practicable within a defined time period. Interim risk control measures, such as administrative controls, may be implemented. Management attention is required.

High Risk

Not acceptable

High Risk level must be reduced to at least Medium Risk before work commences. There should not be any interim risk control measures and risk control measures should not be overly dependent on personal protective equipment or appliances. If need be, the hazard should be eliminated before work commences. Immediate management intervention is required before work commences.

13. With the consensus of management or employer, assign a suitable person to implement the recommended risk control(s), and indicate the follow-up date in column 3b.

14. Repeat risk assessment for other activities and processes listed in the Inventory of Work Activities Form.

15. Management or employer must endorse and approve the risk assessment; communicate all risk assessments to employees; monitor follow-up actions, and keep the risk assessment records for at lest 3 years.

16. Conduct another round of risk assessment after the risk control measures have been implemented; use a new form to indicate the reduction in risk levels.

17. Review the risk assessment records every 3 years or whenever there are changes in processes or work activities or after an accident/incident, whichever is earlier.

Severity

APPENDIX A

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INVENTORY OF WORK ACTIVITIES

Company: No. Process / Location Work Activities 1.

APPENDIX A

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RISK ASSESSMENT FORM

Company: Process/ Location:

Conducted by: (Names, designations) (Date)

Approved by: (Name, designation) (Date)

Last Review Date: Next Review Date:

1. Hazard Identification 2. Risk Evaluation 3. Risk Control

1a. 1b. 1c. 1d. 2a. 2b. 2c. 2d. 3a. 3b.

No. Work Activity Hazard Possible Accident / Ill Health & Persons-at-

Risk

Existing Risk Control (if any)

Severity Likelihood Risk Level

Additional Risk Control

Measures

Action Officer,

Designation (Follow-up

date)

APPENDIX B

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APPENDIX B WORKED EXAMPLES Here are two worked examples of risk assessment forms. The activities associated with each process, type of hazards, and the risk control measures in these examples are generic and not exhaustive, and may not be applicable to similar work in your workplace. SCENARIO 1 – SPRAY PAINTING A factory employs a worker to carry out spray painting of 15-kg metal drums. The work activities of the spray paint worker involve moving the metal drums into the spray paint booth, preparing and mixing solvent-based paint, and carrying out spray painting. The worker is provided with safety shoes, organic vapour respirators, and rubber gloves for his work. He moves 30 drums manually into the spray booth in a typical working day. Safety data sheets for the spray paint indicate the presence of toxic and flammable solvents such as toluene and xylene. Safe work procedures for spray painting are implemented.

RISK ASSESSMENT FORM Company: XYP Co Pte Ltd Process/ Location: Spray Painting / Workshop


Ho Beng Long, Plant Manager; Ong Huat Teng, Supervisor; Tan Ah Lim, Spray Painter. 01 September 2004 Approved by:

(Name, designation) (Date)

Song Heng Poh General Manager 01 September 2005 Last Review Date: 01 Sep 2004 Next Review Date: 01 Sep 2007

1. Hazard Identification 2. Risk Evaluation 3. Risk Control 1a. 1b. 1c. 1d. 2a. 2b. 2c. 2d. 3a. 3b.

No. Activity Hazard Possible Accident

/ Ill Health & Persons-at-Risk

Existing Risk Control Severity

Likeli- hood

Risk Level

Additional Risk Control Measures

Action Officer, Designation

(Follow-up date) Falling object

Worker’s feet can be crushed by metal drum causing injury

Safety shoes Moderate Frequent High 1 Moving metal drums to spray booth Unsafe work

practice Manual handling of 15 kg drum can cause back injury

Training Moderate Occasional Medium

Provide mechanical lifting devices e.g. forklift for moving metal drums to spray booth

Ho Beng Long, Plant Manager (15/12/2004)

Toxic solvent vapours

Exposure to spray paint solvents can cause ill health

Organic vapour respirators; Safe work procedures; Local exhaust ventilation system for spray booth

Moderate Remote Low 2 Preparing and mixing paint

Flammable Fire from solvents Safe work Major Remote Medium

Substitute solvent- based paint with high-solids coatings or use airless spray method; Keep minimum quantity of flammable liquids in

Ho Beng Long, Plant Manager (02/01/2006); Tan Ah Lim, Operator; Ong Huat Teng, Supervisor,

APPENDIX B

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solvents and ignition sources

can result in serious injury or death of worker and nearby people

procedures

the vicinity of spraying operation; Provide adequate fire extinguishers.

(15/09/2004); Ho Beng Long, Plant Manager, (30/09/2004)

Toxic solvent vapours

Exposure to spray paint solvents can result in ill health

Organic vapour respirators, Safe work procedures; Local exhaust ventilation system

Moderate Remote Low 3 Carrying out spray painting

Flammable spray paint mists / vapours and ignition sources

Explosion from spray paint mists & vapours can result in serious injury or death of worker and nearby people

Safe work procedures; Emergency plan; PPE

Major Remote Medium

Regular maintenance of spray booth e.g. changing of filters and testing for airflow; Monitor worker’s exposure to solvent vapours Use explosion proof type of lights and fixtures; Use a non-sparking exhaust fan; Bond and ground spraying equipment and conductive objects

Ho Beng Long, Plant Manager (15/01/2005) Tan Ah Lim, Operator; Ong Huat Teng, Supervisor (15/09/2004) Ho Beng Long, Plant Manager (30/09/2004)

APPENDIX B

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SCENARIO 2 – PAPER SLITTING PROCESS A worker operates a paper slitting machine. His work includes loading 10 kg of paper rolls onto the machine, cutting the paper and unloading the cut paper. He also needs to repair and maintain the machine regularly as well as to change the blades of the machine.

RISK ASSESSMENT FORM Company: XYP Co Pte Ltd Process/ Location: Paper Slitting / Cutting Dept


Ho Beng Long, Production Manager; Ong Huat Teng, Supervisor; Tan Ah Lim, Operator. Approved by:



1. Hazard Identification 2. Risk Evaluation 3. Risk Control 1a. 1b. 1c. 1d. 2a. 2b. 2c. 2d. 3a. 3b.

No. Work Activity Hazard

Possible Accident/Ill-health & Persons-at-Risk

Existing Risk Control (if any)

Severity Likeli-hood

Risk Level

Additional Risk Control Measures

Action Officer, Designation

(Follow-up date) 1 Loading the

machine with paper roll

Slitting knives or blades

Small cuts when contacting the knives during setting

Instructions on safe work practice

Minor Occasional Low Use leather hand gloves Ong Huat Teng, Supervisor; Tan Ah Lim, Operator (30/9/2004)

Unguarded machine

Serious cuts & hands getting caught in the rotating parts of the machine

Audio & visual warning; delayed start-up after “on-button” pressed

Major Occasional High Introduce daily start-up check on safety function; Install machine guarding on rotating parts

Ong Huat Teng, Supervisor; (13/03/2005) Ho Beng Long, Plant Mgr (01/02/2005)

2 Operating the machine

Flying fragments

Serious cuts & eye injuries by flying fragments of blades that break during slitting

Warning signs; Training of new employees; Face shields; Safety goggles; PPE

Major Remote Medium Use knife with stronger blades; Install machine guarding on rotating parts

Ho Beng Long, Production Mgr (10/10/2005); (01/02/2005)

3 Unloading slit papers

Heavy load

Muscular strain when lifting slit papers on pallets

Correct lifting posture

Minor Occasional Low Consider mechanical devices e.g. “scissors” stacker

Ho Beng Long, Production Mgr (01/11/2004)

4 Repair & maintenance of the machine

Unguarded machine; unsafe work practice

Serious cuts from knives & getting caught in rotating parts if machine is accidentally started

Delayed start-up after “on-button” pressed

Major Occasional High Install guarding on rotating parts; Lock-out & tag-out procedure for repair & maintenance

Ho Beng Long, Production Mgr (01/02/2005); Ong Huat Teng, Supervisor (01/12/2004)

APPENDIX C

23

INSTRUCTIONS TO EMPLOYERS & PERSONS CONDUCTING TRADE-BASED RISK ASSESSMENT

Before completing the risk assessment form, complete the Inventory of Trades Form. 1. List all trades or jobs and the names of persons doing the job under the “Trade”

column. 2. For each trade or job, list and describe the main activities under the “Main

activities” column. You may use one Trade-Based Risk Assessment Form for each trade. 3. Record the names and designations of risk assessment team members in the

Risk Assessment Form. 4. Start with the first trade listed in the Inventory of Trade Form. Record this in the

Risk Assessment Form. 5. Identify the hazards associated with the activity of the trade, categorise the

hazards by type (e.g. chemical, physical, electrical and mechanical hazards) and briefly describe these in column 1.

6. For each hazard identified, indicate whether it can cause harm (i.e. whether the hazard poses a risk) by a tick in the “Yes” or “No” box in column 2.

7. If the hazard can cause harm, list all possible risk control measures (including existing measures) in column 3a to eliminate the hazard or reduce the risk following the hierarchy of control measures: “Elimination, Substitution, Engineering Controls, Administrative Controls and PPE”. Leave blank spaces for future additions.

8. Tick the boxes next to the listed actions that are existing hazard control measures.

9. For those items that are not ticked, indicate the names of persons who are responsible for implementing the control measures, and state the dates of implementation in column 3b.

10. For any existing hazard control measures to be removed, state the reasons in column 3b.

11. Repeat steps 2 to 8 for the other trades listed in the Inventory of Trades Form. 12. Management or employer must endorse and approve the risk assessments.

Employer must communicate all risk assessments to employees, monitor the follow-up actions, and keep the risk assessment records for at least 3 years.

13. After the risk control measures have been implemented, conduct another round of risk assessment using a new risk assessment form.

14. Review the risk assessment records every 3 years or whenever there are changes in trades or work activities or after an accident/incident, whichever is earlier.

APPENDIX C

24

INVENTORY OF TRADES

Company:

No Trade Main Activity

APPENDIX C

25

TRADE-BASED RISK ASSESSMENT FORM Company: Job:


Approved by: (Name, designation) (Date)

Last Review Date: Next Review

Date:

1. Hazard

Identification 2. Risk Evaluation 3. Risk Control Actions

1. 2. 3a. 3b.

Hazards associated with trade

Is hazard likely to

harm someone?

List of risk control measures Tick if it is an existing measure

Implementation date & Action officer / Remarks

Yes No

Yes No

Yes No

APPENDIX D

26

APPENDIX D WORKED EXAMPLES (TRADE- BASED RISK ASSESSMENT FORM) The activities associated with each trade, type of hazards, and the risk control measures in these examples are generic and not exhaustive, and may not be applicable to similar work in your workplace. SCENARIO 1 – SPRAY PAINTING A factory employs a worker to carry out spray painting of 15-kg metal drums. The work activities of the spray paint worker involve moving the metal drums into the spray paint booth, preparing and mixing solvent-based paint, and carrying out spray painting. The worker is provided with safety shoes, organic vapour respirators, and rubber gloves for his work. He moves 30 drums manually into the spray booth in a typical working day. Safety data sheets for the spray paint indicate the presence of toxic and flammable solvents such as toluene and xylene. Safe work procedures for spray painting are implemented.

TRADE-BASED RISK ASSESSMENT FORM Company: XYP Co Pte Ltd Job: Spray Painter


Ho Beng Long, Production Manager; Ong Huat Teng, Supervisor; Tan Lim, Operator. Approved by:



1. Hazard Identification 2. Risk Evaluation 3. Risk Control Actions 1. 2. 3a. 3b.


Is hazard likely to harm someone?

List of risk control measures Tick if it is an existing measure.


Moving drums using mechanical devices 15/12/2004 – Ho Beng Long Use safety shoes

Limbs crushed due to falling metal drum while moving it to spray booth

Yes No

Other suggestion for actions can be added here Handle drums using mechanical devices 15/12/2004 – Ho Beng Long Conduct training on the correct way of moving a metal drum

Back injury due to manual handling of drum while moving drum to spray booth

Yes No

Other suggestion for actions can be added here Substitute solvent-based paint with high-solids coatings 02/01/2006 – Ho Beng Long Use airless spray method 16/02/2005 – Ho Beng Long Install a local exhaust ventilation system

Excessive exposure of toxic solvent vapours during: • preparation and

Yes No Implement safe work procedures

APPENDIX D

27

Conduct regular maintenance of spray booth 15/01/2005 – Ho Beng Long Monitor worker’s exposure to solvent vapours 15/01/2005 – Ho Beng Long Use organic vapour respirators

mixing of paint • spray painting

Yes No

Other suggestion for actions can be added here Substitute solvent-based paint with high-solids coatings 02/01/2006 – Ho Beng Long Use a non-sparking exhaust fan 15/09/2004 – Ong Huat Teng Use airless spray method 16/02/2005 – Ho Beng Long Bond and ground spraying equipment and conductive objects 15/09/2004 – Tan Lim; Ong Huat Teng Use explosion proof type of lights and fixtures 15/09/2004 – Tan Lim; Ong Huat Teng Install a local exhaust ventilation system Implement safe work procedures Conduct regular emergency response exercise Keep min quantity of flammable liquids in spraying vicinity 15/09/2004 – Ong Huat Teng, Tan Lim Provide adequate fire extinguishers 30/09/2004 – Ho Beng Long Use PPE

Fire and explosions due to: • Flammable solvents

and ignition sources from the preparation and mixing of paint

• Flammable solvents and ignition sources from spray painting

Yes No

Yes No

Other suggestion for actions can be added here SCENARIO 2 – PAPER SLITTING PROCESS A worker operates a paper slitting machine. His work includes loading 10 kg of paper rolls onto the machine, cutting the paper and unloading the cut paper. He also needs to repair and maintain the machine regularly as well as to change the blades of the machine.

TRADE-BASED RISK ASSESSMENT FORM Company: XYP Co Pte Ltd Job: Paper slitting machine Operator


Ho Beng Long, Production Manager; Ong Huat Teng, Supervisor; Tan Lim, Operator. Approved by:



1. Hazard Identification 2. Risk Evaluation 3. Risk Control Actions 1. 2. 3a. 3b.


Is hazard likely to harm someone?

List of risk control measures. Tick if it is an existing measure.


APPENDIX D

28

Implement safe work practice Use leather hand gloves 30/09/2004 – Ong Huat Teng, Tan Lim

Cuts from knives due to contact with blades while loading machine with paper roll

Yes No

Other suggestion for actions can be added here Delayed start-up after “on-button” is pressed Install machine guarding on rotating parts 01/02/2005 – Ho Beng Long Implement lock-out and tag-out procedures 01/12/2004 – Ong Huat Teng

Cuts from knives due to: Accidental start-up of machine during the repair & maintenance

Yes No

Other suggestion for actions can be added here

Install machine guarding on rotating parts 01/02/2005 – Ho Beng Long Delayed start-up after “on-button” pressed Conduct daily start-up check on safety functions 13/03/2005 – Ong Huat Teng Implement lock-out tag-out for repair & maintenance Install audio and visual warning alarms and LED Conduct training on safe work procedures Tie up loose hair Tuck in any loose clothing

Limbs/clothing/ hair getting caught in rotating parts due to: • Unguarded machine

during operation • Unguarded machine

during repair and maintenance

Yes No

Yes No

Other suggestion for actions can be added here Replace manual lifting with mechanical devices 01/11/2004 – Ho Beng Long Handle smaller loads at a time Conduct training on correct lifting posture Observe regular rest intervals

Muscular strain due to: Heavy load when lifting slit papers on pallets for unloading purpose

Yes No

Other suggestion for actions can be added here Replace knife with stronger blades 10/10/2005 – Ho Beng Long Install machine guarding on rotating parts 01/02/2005 – Ho Beng Long Conduct training for new employees Display warning signs Provide and use face shields, safety goggles

Serious cuts and eye injuries due to: Flying fragments of blades that break during operation of slitting machine

Yes No

Other suggestion for actions can be added here

A Quick Guide to Risk Assessment

Part 1: Introduction What is Risk Assessment? It is the process of:

1. Identifying and analysing safety and health hazards associated with work

2. Assessing the risks involved and 3. Prioritising measures to control the hazards and

reduce the risks

Why should we do Risk Assessment? Risk assessment allows us identify the hazards at the workplace and implement effective risk control measures before they escalate into accidents and injuries. Under the new Workplace Safety and Health (Risk Management) Regulations, every workplace, including factories, should conduct risk assessments for all routine and non-routine work undertaken.

How is Risk Assessment done? Prior to conducting Risk Assessment, adequate preparation must be done. A risk assessment team should be formed, preferably consisting personnel from the various levels of participation in the work activity.

Relevant information should also be collated to facilitate better understanding of the work process.

Having completed the preparation work, workplace risks may then be assessed in 3 simple steps:

1. Hazard Identification 2. Risk Evaluation 3. Risk Control

What to know? • Where the work is carried out • Who is doing the work • What equipment is used • What steps are involved • What the existing control

measures are • What do existing regulations

and codes of practices stipulate

Where to find? • Plant layout plan • Flowchart of processes • List of work activities/trades • List of chemicals, machinery

and tools used • Records of past incidents and

accidents • Relevant legislations, codes of

practice or specifications • Observations and interviews • Inspection records • Details of existing risk controls • Health and safety audit

reports • Feedback from staff, clients,

suppliers or other stakeholders • Safe work procedures and

copies of previous risk assessments

Part 2: Generic Steps of Risk Assessment

• Identify hazards

• Identify potential

accidents or incidents

• Estimate the risk levels of

the workplace hazards

identified

• Prioritise the hazards to

be controlled

• Formulate the control

measures according to

the Hierarchy of Controls

• Analyse and evaluate

residual risks

1 2 HAZARD IDENTIFICATION

RISK EVALUATION

RISK CONTROL 3

Hazard Identification involves identifying the hazards associated with the activity of each process and type of potential accidents or incidents. During this phase, the aim is to spot hazards, brainstorm on all the possible types of accidents and ill health that can happen due to the hazard, and identify the persons that can be victims of the accident or ill health.

STEP 1: Hazard Identification

Types of accident, incident and ill health may include: √ Person falling from height √ Object falling from height √ Slips or falls on the same level √ Electrocution √ Asphyxiation √ Drowning √ Noise induced deafness √ Dermatitis √ Collapse of structure √ Fire and explosion √ Struck by or against object √ Soft tissue damage (sprains, strains)

Persons-at-risk may include: √ Persons directly involved in the operation √ Persons not directly involved in the operation √ Visitors to the workplace √ Members of the public

You may wish to consider the following when trying to look for instances of hazardous work:

Method of work e.g. repeated tasks and unsafe work practices

Electrical and mechanical hazards Excessive manual material handling e.g. lifting, pulling and pushing

Excessive exposure to chemicals e.g. corrosive substances

Machinery e.g. unguarded machines Temporary structures e.g. scaffolds Environmental conditions e.g. slippery surfaces, lighting, unstable soil conditions

Layout and location of equipment


1 2 RISK EVALUATION

RISK CONTROL

A simple way of identifying hazards for a particular work activity is to divide the work activity into the major steps of carrying out the work and analyse the steps individually for the presence of hazards. It is also important to differentiate between hazards and accidents or ill-health, which are events caused by inadequate control of hazards. The following chart illustrates the method of identifying hazards systematically and also gives examples for hazards leading up to certain events:

Work Activity Divide into Major Steps Spot the Hazards

Accidents or Ill-health Arising from Hazards

e.g. Spray Painting

1. Moving metal drums to the spray booth 2. Preparing and mixing paint 3. Carrying out spray painting

- Toxic solvent vapours - Flammable spray paint mists

or vapours and ignition sources

- Exposure to spray paint solvents can result in ill health

- Explosion from spray paint mists and vapours can result in serious injury or death of the worker and nearby people

… … … … … …

Further expansion for step 3:

… … …… … …


1 2 RISK EVALUATION

RISK CONTROL

Risk evaluation is the process of estimating the risk levels for the hazards and their acceptability. This is used as a base for prioritising actions to control these hazards and minimise safety and health risks. Risk is made up of 2 parts:

1. Predicted SEVERITY of the hazard and, 2. LIKELIHOOD of occurrence of the accident, incident or ill health taking into account the existing risk controls

Factors to take into consideration: EXISTING RISK CONTROLS must be taken into account when assessing risks. By considering the effectiveness of these controls, and the consequences of their failure, the risk of the activity can be better assessed. SEVERITY is the degree or extent of injury or harm caused by the hazards, or as a result of an accident. The severity is classified into 3 categories: Minor, Moderate and Major. LIKELIHOOD of occurance of an accident, incident or ill health may be defined as the probability that the said incident will happen and is also classified into 3 categories: Remote, Occasional or Frequent. To minimise the subjectivity of estimating likelihood, in addition to looking at existing risk controls, the following sources of information should be considered:

√ Past incident and accident records √ Industry practice and experience √ Relevant published literature

RISK LEVEL may be determined once the severity and likelihood have been established. This may be achieved by using a 3 by 3 matrix. The size of the matrix may vary according to complexity of the work conditions. The following chart illustrates how severity and likelihood come together to help determine risk level.

STEP 2: Risk Evaluation


RISK EVALUATION

RISK CONTROL

2 3

Risk Evaluation Map

Minor

Moderate

Major

No injury, injury or ill-health requiring first aid treatment only (includes minor cuts and bruises, irritation, ill-health with temporary discomfort

Injury requiring medical treatment or ill-health leading to disability (includes lacerations, burns, sprains, minor fractures, dermatitis, deafness)

Fatal, serious injury or life-threatening occupational disease (includes amputations, major fractures, multiple injuries, occupational cancer, acute poisoning and fatal diseases)

Determine Severity

Remote

Occasional

Frequent

Not likely to occur

Possible or known to occur

Common or repeating occurance

Determine Likelihood

Minor Moderate

Major

Low Risk

Low Risk

Medium Risk

Low Risk

Medium Risk

High Risk

Medium Risk

High Risk

High Risk

Severity Remote Occasional Frequent Likelihood

Determine Risk

Severity

Likelihood

Example: If the consequence of a hazard is identified to have moderate severity and occasional likelihood, the risk level may be determined to be medium.

RISK CONTROL

RISK EVALUATION


1 3

How to establish methods of eliminating or reducing the risks? Based on the risk level determined in STEP 2, risk controls should be selected to reduce or confine the risk level to an acceptable level. The following table suggests the acceptability of risk for different risk levels.

Risk Level Acceptability of Risk Low Acceptable Medium Moderately Acceptable High Not Acceptable

In order to prioritise the risk controls adequately, the formulation of such risk controls may take into consideration the relative risk levels of the different hazards and the cost and benefit of the controls. The residual risk after the implementation of the controls should also be evaluated. Reasonably practicable measures must be taken to maintain the risk level within the acceptable range. It is essential for risks to be eliminated or reduced ‘at source’. If the risk level is high, work cannot commence until the risk level is reduced to the medium level. What risk control methods are there? Methods to control risks may be analysed according to the Hierarchy of Controls: Elimination, Substitution, Engineering Controls, Administrative Controls and Personal Protective Equipment. Elimination of the hazard should take first priority while personal protective equipment should be the last line of defence. Following is an example of the possible control measures applicable to a spray painting activity.

STEP 3: Risk Control


RISK EVALUATION

RISK CONTROL

3

Spray Painting of Article

Inhalation of toxic vapours

WORK ACTIVITY HAZARD POSSIBLE CONTROL MEASURES

Use automated machines to carry out spray painting. Enclose the article to be spray-painted.

Replace the harmful components of the spray painting chemicals with non-toxic chemicals

Train workers on the hazards of spray painting and assigned competent persons to carry out the work activity.

Alter the process plan so that the article does not need to be spray painted. Colour the article using a different method. For example using pre-coloured materials

Elimination

Substitution

Engineering Controls

Administrative Controls

Provide approved and adequate PPE for the spray painting activity. Respirators must be fit-tested and workers must be trained to use them correctly.

Personal Protective Equipment

HIERARCHY OF CONTROLS


RISK EVALUATION

RISK CONTROL

3

Part 3: Risk Assessment as a Component of Risk Management Risk assessment, when carried out appropriately, will allow better understanding of the risks at the workplace and their control measures. It is a key component of Risk Management. Besides Risk Assessment, Risk Management also consists of other components such as Communication, Record Keeping and Implementation and Review. Together they form the Risk Management Process. A schematic diagram of the Risk Management Process is illustrated below:

Risk Assessment (RA)

Estimate risk levels based on identified hazards.

Prioritise the hazards to be controlled

6 Implementation

& Review

Formulate control measures according to the Hierarchy of Controls:

• Elimination • Substitution • Engineering

controls • Administrative

controls • PPE Analyse and

evaluate residual risk

Keep risk assessment reports for at least 3 years.

Review risk assessments:

• Once every 3 years;

• Whenever new information on OSH risks surfaces;

• When there are changes to work processes and / or;

• After any accident/incident.

Form RA Team

Gather relevant information

Identify hazards

Identify potential accidents / incidents

COMMUNICATION

1 Preparation

2 Hazard

Identification

3 Risk

Evaluation

4 Risk

Control

5 Record Keeping

Occupational Safety and Health Division (OSHD) Ministry of Manpower (MOM)

- 1 -

AN AID TO HAZARD IDENTIFICATION AND CONTROL IN RISK ASSESSMENT FOR SOME TYPICAL PROCESSES AND WORK ACTIVITIES

IN CHEMICAL & GAS BOTTLING PLANTS The information here is intended to assist employers, manufacturers, suppliers and users conducting risk assessments to identify hazards, possible accidents/ill-health, and suitable control measures from common work activities in chemical and gas bottling plants. The processes and work activities stated here are only some typical examples and may vary from workplace to workplace. The possible hazards, accidents/ill-health and suggested control measures supplied below are not exhaustive. Other possible hazards not indicated should also be controlled to required standards but are not dealt with here. It is essential for risks to be eliminated or reduced “at source”. If a risk cannot be controlled completely by engineering measures, it is necessary to protect the employees by administrative control@ or personal protection. The control of hazards and reduction of risks can be accomplished by following the hierarchy of control methods below. These control measures are not usually mutually exclusive. e.g. engineering controls can be implemented together with administrative controls like training and safe work procedures. @ Training, safe work procedures, scheduling incompatible work, etc. For ease of reference in completing the Risk Assessment Form in Appendix 12 of MOM’s OSH Guidelines on Risk Assessment, the items in the examples provided in this aid have been arranged and labelled ‘1a.’, ‘1b.’ etc. to indicate the respective columns in the Risk Assessment Form to which the items apply. The “Possible Risk Control” items may apply to either Existing Risk Control (2a) or Additional Risk Control (2b) in the Risk Assessment Form.

Least preferred

Most preferred

PPPPEE

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EEnnggiinneeeerriinngg CCoonnttrroollss

EElliimmiinnaattee // SSuubbssttiittuuttee


- 2 -

Chemical Handling and Blending Process 1a. 1b. 1c. 1d. 2a. or 3a.

No. Work Activity Hazard Possible Accident / Ill-Health

Possible Risk Control

Moving vehicles Injuries or deaths from traffic accident

• Attend and complete forklift driver training • Abide by speed limit • Designate loading/unloading bay • Install warning alarms

Leaking drums / containers

Chemical spill, excessive inhalation / skin absorption of chemicals

• Install gas/vapour detection systems • Place drum/containers on spill control pallets • Build bund walls • Implement emergency plans • Conduct regular drills

Inhalation of fugitive chemical emissions

Ill-health from chemical overexposure

• Install gas/vapour detection systems • Install ventilation system in storage area • Provide well-ventilated, non-air-conditioned work area

Inhalation of hazardous products from undesirable reactions upon incompatible mixing

Ill-health from chemical overexposure

• Engage competent person in charge to manage hazardous substances

• Segregate incompatibles • Provide well-ventilated, non-air-conditioned work area • Label chemicals • Obtain and use information in MSDSs • Provide hazard communication training • Implement safe work procedures

1 Receiving bulk chemicals

Fire and explosions from excessive heat produced and flammable vapours

Injuries / deaths • Segregate incompatibles • Prohibit ignition, heat sources, smoking and open flames • Provide well-ventilated, non-air-conditioned work area • Label chemicals • Obtain and use information in MSDSs • Provide hazard communication training • Implement safe work procedures • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills

2 Weighing of raw materials

Fire and explosions Injuries / deaths • Install local exhaust ventilation system • Install dilution ventilation • Provide well-ventilated work area • Prohibit ignition, heat sources, smoking and open flames


- 3 -

1a. 1b. 1c. 1d. 2a. or 3a.



• Implement safe work procedures • Provide and attend training on fire and explosion safety • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills

Excessive inhalation of solvent vapours

Ill-health due to chemical overexposure

• Install local exhaust ventilation system • Build enclosure around weighing scale • Automate weighing system • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Practice good housekeeping • Provide and attend training on solvent hazards and control

measures • Provide, use and maintain respiratory protection

Excessive skin absorption of solvents

Dermatitis, ill-health due to chemical overexposure

• Automate washing/cleaning system • Implement safe work procedures • Provide and attend training on solvent hazards and control

measures • Provide, use and maintain eye, body and hand protection

Excessive inhalation of dust (from raw materials in powder or solid form)


• Install local exhaust ventilation system • Build enclosure around weighing scale • Automate weighing system • Implement safe work procedures • Practice good housekeeping • Provide and attend training on dust hazards and dust control

measures • Provide, use and maintain respiratory, eye, face, body and

hand protection Burnt by corrosive solutions (e.g. acids, alkalis etc)

Eye / skin burns • Install local exhaust ventilation system • Build enclosure around weighing scale • Automate weighing system • Implement safe work procedures • Provide eye wash, emergency shower • Practice good housekeeping • Provide and attend training on corrosive hazards and their


- 4 -

1a. 1b. 1c. 1d. 2a. or 3a.



control measures • Provide, use and maintain eye, face, body and hand

protection Splashes by chemicals during agitation / mixing / blending

Eye / skin irritation, dermatitis

• Install covers on mixer/blender • Build enclosures around mixer/blender • Implement safe work procedures • Provide and attend training • Provide, use and maintain eye and face protection

Limbs caught in moving mechanical parts of mixer / blender

Amputations, fractures, sprains

• Install machine guarding • Install sensors • Install warning alarms • Implement safe work procedures • Provide and attend training on machine guarding

Fire & explosions Injuries / deaths • Install local exhaust ventilation • Build covers on mixer/blender • Build enclosures around mixer/blender • Install dilution ventilation in work area • Prohibit ignition, heat sources and open flames • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Provide and attend training on fire and explosion safety • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills

Excessive inhalation of solvent vapours produced by agitation, mixing or blending


• Install local exhaust ventilation • Build covers on mixer/blender • Build enclosures around mixer/blender • Install dilution ventilation in work area • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Provide and attend training on solvent hazards and control


3 Mixing/Blending

Excessive noise exposure from moving

Noise induced deafness • Substitute noisy mechanical parts with quieter ones • Build enclosures padded with noise-absorbing materials


- 5 -

1a. 1b. 1c. 1d. 2a. or 3a.



mechanical parts of mixer / blender

around mixer/blender • Maintain mechanical parts regularly • Provide and attend hearing conservation training • Implement safe work procedures • Put up warning signs • Provide, use and maintain hearing protection

Splashed by chemicals during agitation / mixing / blending


• Install covers on mixer/blender • Build enclosures around mixer/blender • Implement safe work procedures • Provide and attend training • Provide, use and maintain eye and face protection

Fire & explosions Injuries / deaths • Automate packing system • Install local exhaust ventilation system • Install dilution ventilation in work area • Prohibit ignition, heat sources and open flames • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Provide and attend training on fire and explosion safety • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills

Excessive inhalation of solvent vapours produced during packing


• Automate packing system • Install local exhaust ventilation system • Install dilution ventilation in work area • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Provide and attend training • Provide, use and maintain respiratory protection

Splashed by chemicals during packing


• Automate packing system • Build enclosures around packing system • Implement safe work procedures • Provide and attend training • Provide, use and maintain eye and face protection

4 Packing into smaller containers / drums

Repeated lifting of packed containers /

Back aches, strains • Automate packing system • Use pallets with adjustable heights that respond to weight of


- 6 -

1a. 1b. 1c. 1d. 2a. or 3a.



drums packed containers/drums • Provide mechanical lifting aids • Implement safe work procedures • Provide and attend ergonomics training • Use proper lifting posture • Provide adequate breaks

Electrocution Electric shock, deaths • Implement log out/tag out • Implement safe work procedures • Provide and attend training • Put up warning signs

5 Maintenance of mixer/blender

Limbs caught in moving mechanical parts of mixer / blender


• Implement log out/tag out • Implement safe work procedures • Provide and attend training on machine guarding • Put up warning signs

Electrocution Electric shock, deaths • Implement log out/tag out • Implement safe work procedures • Provide and attend training • Put up warning signs

Limbs caught in moving mechanical parts of mixer/blender


• Implement log out/tag out • Implement safe work procedures • Provide and attend training on machine guarding • Put up warning signs

Excessive skin absorption of solvents

Dermatitis • Automate washing/cleaning system • Implement safe work procedures • Provide and attend training • Provide, use and maintain eye, body and hand protection

6 Cleaning/washing of mixer/blending

Excessive inhalation of solvent vapours


• Install local exhaust ventilation • Install dilution ventilation in work area • Provide well-ventilated, non-air-conditioned work area • Implement safe work procedures • Provide and attend training on solvent hazards and control



- 7 -

Typical Process for Pipe Maintenance 1a. 1b. 1c. 1d. 2a. or 3a.



Scalded from contact with heated piping

Burns on skin / eye • Monitor isolation and purging with Distributed Control System

• Put up warning signs • Communicate hazard to others in the vicinity prior to work

commencement • Barricade area

1 Isolate and purge pipeline with steam

Excessive noise exposure from steam emission

Noise induced deafness • Put up warning signs • Communicate hazard to others in the vicinity prior to work

commencement • Barricade area • Provide, use and maintain hearing protection

Inhalation of residue chemicals in pipe

Ill-health due to acute chemical overexposure

• Ensure adequate purging • Ensure temperature and pressure within pipes are lowered

to ambient temperature • Install gas/vapour detection systems • Implement permit-to-work systems • Put up warning signs • Implement safe work procedures • Provide and attend training on chemical safety • Barricade area • Provide, use and maintain respiratory, body, face and hand

protection Burnt by corrosive chemical residue in pipe

Burns on skin / eye • Ensure adequate purging • Ensure temperature within pipes are lowered to ambient

temperature • Implement permit-to-work systems • Put up warning signs • Implement safe work procedures • Provide and attend training on chemical safety • Barricade area • Provide, use and maintain respiratory, body, face and hand

protection

2 Remove pipe

Hit by pipes and other protrusions

Bruises, sprains • Place warning tape on low overhead protrusions and pipes • Barricade area • Provide, use and maintain head protection


- 8 -

1a. 1b. 1c. 1d. 2a. or 3a.



Excessive noise due to machining works

Noise induced deafness • Substitute noisy machines with quieter ones • Enclose noisy processes • Use silencers and mufflers • Put up warning signs • Provide and attend hearing conservation training • Provide, use and maintain hearing protection

Excessive inhalation of cleaning solvent vapours


• Install local exhaust ventilation system • Cover and build enclosures around degreasing machines • Install dilution ventilation in work area • Implement safe work procedures • Provide and attend training on solvent hazards and control

measures • Put up warning signs • Provide, use and maintain respiratory protection

3 Maintenance of pipe off-site

Excessive skin absorption of cleaning solvents

Dermatitis, ill-health due to chemical overexposure

• Mechanise degreasing machines • Implement safe work procedures • Provide and attend training • Put up warning signs • Provide, use and maintain eye, body and hand protection

4 Re-install pipe Hit by pipes and other protrusions

Bruises, sprains • Place warning tape on low overhead protrusions and pipes • Barricade area • Provide, use and maintain head protection

Typical Process for Loading Chemicals into Isotankers 1a. 1b. 1c. 1d. 2a. or 3a.

No. Work Activity Hazard Possible Accident / Ill-Health Possible Risk Control

1 Connect transfer pipes from vessel to isotanker

Hit by falling valve Body / head injuries • Substitute heavy valves with lighter ones • Use mechanical lifting aids • Practice good housekeeping to ensure valve surface is kept

clean and is not slippery • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE


- 9 -

1a. 1b. 1c. 1d. 2a. or 3a.


Falling from heights Deaths, fractures, sprains

• Provide a secure work platform • Install barricades • Provide, use and maintain fall arrest devices

Chemical splash as valve is accidentally opened upon impact with the ground

Skin / eye burns • Use a quick connect valve instead of one with a handle that can easily twist open upon impact on ground

• Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

Fugitive emissions of chemicals created in headspace of isotanker during filling

Ill-health due to chronic chemical overexposure

• Implement bottom-loading isotankers to minimise agitation during filling

• Provide and attend training on chemical safety • Implement safe work procedures • Provide, use and maintain PPE

Chemical leaks due to corrosion or wear and tear of transfer pipes

Spills, ill-health due to chemical overexposure

• Engage a competent person to be in charge of hazardous substances to ensure compatibility of pipe material with chemicals transferred

• Conduct periodic checks and maintenance • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

Undesirable hazardous products from mixing of incompatible chemicals


• Label all chemical drums/containers • Ensure isotankers are clean before topping up/charging • Provide and attend chemical safety training

2 Load chemicals into isotanker

Fire and explosion Deaths, injuries • Install solvent vapour recovery system • Implement bottom-loading isotankers to reduce solvent

vapour emissions • Prohibit ignition, heat sources and open flames • Implement safe work procedures • Provide and attend training on fire and explosion safety • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills

3 Uncouple transfer pipes from isotanker

Hit by falling valve Head / body injuries • Substitute heavy valves with lighter ones • Use mechanical lifting aids • Practice good housekeeping to ensure valve surface is kept

clean and is not slippery


- 10 -

1a. 1b. 1c. 1d. 2a. or 3a.


Falling from heights Deaths, fractures, sprains

• Provide a secure work platform • Install barricades • Implement safe work procedures • Provide and attend training • Provide, use and maintain fall arrest devices


Eye / skin burns or irritation

• Use a quick connect valve instead of one with a handle that can easily twist open upon impact on ground


Typical Process for Unloading Chemicals from Isotankers 1a. 1b. 1c. 1d. 2a. or 3a.




1 Connect transfer pipes from isotanker to receiving vessel


Eye / skin burns, eye / skin irritation



Undesirable hazardous products from mixing of incompatible chemicals

Ill-health due to inhalation of hazardous chemicals

• Use pipes with different diameters for incompatible chemicals

• Colour code pipes • Label pipes clearly • Ensure hazard communication between driver and plant

personnel • Provide and use Material Safety Data Sheets • Provide and attend chemical safety training

2 Load chemicals into receiving vessel

Fire and explosions from Deaths, injuries • Install solvent vapour recovery system


- 11 -

1a. 1b. 1c. 1d. 2a. or 3a.


heat produced and flammable vapours

• Implement bottom-loading isotankers to reduce solvent vapour emissions

• Prohibit ignition, heat sources and open flames • Implement safe work procedures • Provide and attend training on fire and explosion safety • Install deluge / fixed water systems • Implement emergency plans • Conduct regular drills









3 Uncouple transfer pipes from receiving vessel





Typical Process for the Changeover of Gas Cylinders 1a. 1b. 1c. 1d. 2a. or 3a.


- 12 -


Inhalation of residue gas in line


• Isolate and purge line upstream • Monitor isolation and purge through computerised system • Build enclosures around gas cylinders • Install local exhaust ventilation system • Implement safe work procedures • Inform and train chemical suppliers / contractors • Provide and attend training • Provide, use and maintain PPE

Inhalation of remaining gas in cylinder


• Install on-line gas level indicator • Install gas detection system • Isolate and purge cylinder before disconnection • Monitor isolation and purge through computerised system • Install local exhaust ventilation system • Implement safe work procedures • Inform and train chemical suppliers / contractors • Provide and attend training • Provide, use and maintain PPE

Uncontrolled leak of upstream gas into gas cylinder storage area

Ill-health due to chemical overexposure, unconsciousness, deaths

• Isolate and purge line upstream • Install local exhaust ventilation system • Install gas detection system • Install pressure indicator • Install warning alarm • Implement emergency shutdown system • Inform and train chemical suppliers / contractors • Provide and attend training • Conduct emergency planning • Provide, use and maintain PPE

1 Disconnect line from cylinder

Hit by flying hose Bruises • Isolate line upstream • Install pressure indicator • Provide and attend training

Hit by toppling/falling cylinder

Head / body injuries • Secure cylinders • Install pallets with mounted rollers for ease of moving

cylinders • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

2 Remove gas cylinder after checking it is empty

Manual lifting of heavy Back aches / pains • Use mechanical lifting aids


- 13 -

1a. 1b. 1c. 1d. 2a. or 3a.


cylinder • Install pallets with mounted rollers for ease of moving cylinders

• Use proper lifting posture and method • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

Hit by toppling/falling cylinder

Head / body injuries • Secure cylinders • Install pallets with mounted rollers for ease of moving

cylinders • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

Manual lifting of heavy cylinder

Back aches / pains • Use mechanical lifting aids • Install pallets with mounted rollers for ease of moving

cylinders • Use proper lifting posture and method • Implement safe work procedures • Provide and attend training • Provide, use and maintain PPE

3 Replace empty cylinder with filled cylinder

Excessive inhalation of gas due to leaking cylinder


• Install local exhaust ventilation system • Install gas detection system • Install pressure regulator and indicator • Implement safe work procedures • Inform and train chemical suppliers / contractors • Provide and attend training • Provide, use and maintain PPE

CONSTRUCTION METHOD STATEMENT

Client

THOMAS ENTERPRISES INC.

Project

10 TRINITY SQUARELONDON

THOMAS ENTERPRISES INC. 10 TRINITY SQUARE CONSTRUCTION METHOD STATEMENT

1 of 16 November 2008

BRUCESHAW

EXECUTIVE SUMMARY This report has been commissioned by Thomas Enterprises Inc. to prepare a Construction Method Statement in support of a detailed planning application for the proposed development of 10 Trinity Square in the City of London.. The development involves the renovation of the former Port of London Authority, Grade II* listed building on Trinity Square, into a luxury hotel and ancillary facilities, and private residential apartments. This report outlines how this project, will be constructed efficiently, under controlled environmental conditions. This method statement describes how we propose to minimise inconvenience to the neighbouring owners. Our high level target programme, which Bruce Shaw prepared in conjunction with the Architect, Woods Bagot and structural engineer Buro Happold to reflect the design information as detailed in Appendix A and the Buro Happold 3D Visualisation in Appendix B.

a) Woods Bagot have informed us that the planning application is to be made in November 2008 and DP9 have informed us that consent is projected for April 2009. Notwithstanding the implications of a delayed planning consent, it is important that ‘soft strip’, asbestos removal and protection within the existing building starts no later than the end of April 2009. The very nature of the finishes within the existing building and the implications for English Heritage make this a key activity, which should not be delayed. The principal demolition works will be in the courtyard and the existing original elevations are to be retained which will reduce noise and disruption to the neighbouring owners.

b) The first phase site investigations and structural survey investigations are complete and analysis

has enabled Buro Happold to make key decisions in respect of piling and foundation design. The site investigation suggests that the central courtyard does contain rubble from war damage, existing masonry footings and vaults which will impose an added constraint on the planned progress of the works prior to the piling activity. On the basis of known information the early construction activities have been sequenced to reflect these circumstances and the predicted ‘Soft Opening’ for the hotel will be at the end of February 2012.

c) The limited site investigation work has given a good indication of the position and nature of the

existing foundations of the main building and the piling and new foundation design has been tailored to ensure the minimum disturbance to the existing structure whilst at the same time maximising the available space within the new basement areas.

d) We have encouraged an experienced contractor to challenge our methodology and programme and their comments support the decisions of the Project Team.

e) Based on an April 2009 commencement of demolition ‘soft strip’, we anticipate that the

building envelope will be enclosed by circa August 2011, when scaffolding will be removed and the final internal works and landscaping will be carried out with minimal noise detriment to the neighbouring owners.

THOMAS ENTERPRISES INC.10 TRINITY SQUARECONSTRUCTION METHOD STATEMENT


BRUCESHAW

CONTENTS

1.0 Introduction

2.0 Programme of Works

3.0 Materials and Resource Use

3.1. Deconstruction3.2 Construction3.3 Plant and Equipment3.4 Hours of Work

4.0 Proposed Construction Methodology

4.1. Site Enabling and Deconstruction4.2. Basement Excavation and Foundation Strategy4.3. Retaining Structures4.4. Superstructure4.5. Façade4.6. Fit-Out Works4.7. Mechanical and Electrical Services4.8. External Works and Landscaping4.9. Commissioning and Building Handover

5.0 Site Logistics

5.1. Introduction5.2. Concrete Pumps5.3. Site Accommodation5.4. Personnel Access5.5. Deliveries5.6. Craneage5.7. Construction Vehicle Movements

6.0 Potential Environmental Impacts

6.1 Potential Impacts during Demolition and Construction

7.0 Mitigation Issues

7.1. Demolition and Construction Method Statement7.2. Management of Trade Contractors7.3. Public Relations7.4. Environmental Management Plan (EMP)7.5. Construction Vehicle Management7.6. Access and Egress7.7. Road Cleanliness7.8. Management of Noise, Vibration and Dust7.9. Waste Management Plan7.10. Protection of Archaeological Resources7.11. Protection of Ecological Resources7.12. Protection of Views7.13. Protection of Water Resources7.14. Energy and Water Usage

8.0 Conclusion

Appendix A – References / Design Information

Appendix B - Buro Happold 3D Visualisation

Prepared by Kieran Rothery



BRUCESHAW

1.0 INTRODUCTION This report has been prepared for the sole benefit, use and information of the Client, Thomas Enterprises Inc. for the purposes set out in the report or instructions commissioning it. The liability of Bruce Shaw Partnership in respect of the information contained in this report will not be extended to any third party. The report is a qualified assessment based on current information and is subject to refinement as the project evolves. We have prepared our report to outline how this project will be constructed including a review of the construction methodology and site logistics. This report describes the proposed outline programme and key activities for deconstruction of part of the existing on-site buildings, the adjoining Seething Lane Garden, along with the subsequent construction works. Potentially significant environmental impacts associated with these activities are identified and, where necessary, proposals for mitigation are outlined. Please refer to the ‘Design and Access Statement’ as prepared by Woods Bagot that accompanies the planning application for a description of the Proposed Development itself. Planning for deconstruction and construction is necessarily broad at this stage and may be subject to modification during detailed construction planning. Consequently, a number of aspects of construction in relation to environmental issues cannot, at this stage, be accurately predicted. For example, the number of vehicles required during site works will be dependent on progress of the works against the construction programme. This report has been written by Bruce Shaw, with assistance from Woods Bagot, URS and Buro Happold. 2.0 PROGRAMME OF WORKS The total duration for the excavations and reinforced concrete works to the basement as indicated in our high level target programme is estimated to be 76 weeks and will comprise the following key stages: · Deconstruction, enabling works and site clearance; · Basement and foundation excavation, and construction of basements; Refurbishment to the Grade II* Listed Building (this is covered under a separate listed building consent) superstructure construction, fit-out and removal of construction machinery plant will follow with a degree of concurrency for 72 weeks leading to a target ‘soft opening’ at the end of February 2012 and a fully operational hotel coinciding with the opening ceremony of the London Olympic Games in July 2012 Our construction methodology statement which follows explains how this will be achieved. The above programme assumes a traditional approach to the challenge of excavating and constructing the basement structures to both Seething Lane Garden and the central courtyard and this is favoured by potential contractors who have considered the problem in some detail as an exercise on our behalf to verify our assumptions.



BRUCESHAW

3.0 MATERIALS AND RESOURCE USE 3.1 Deconstruction A specialist waste management organisation will be employed during the demolition and construction works with specific responsibility for the coordination of the disposal of all surplus materials and the management of an effective document control system to track and confirm that the proper procedures have been followed. The location of the waste handling site that the materials will be taken to will vary dependent upon their specific make up but we anticipate that sites in Hackney, Barking, Bromley by Bow, Greenwich, Edmonton and Rainham in Essex will be used amongst others as appropriate. Wherever possible, materials will be recycled and re-used either onsite, or provided for use elsewhere. Approximately 63,000 cubic metres (m3) of building material is expected to be generated during demolition of the existing buildings and excavation of the basement, which comprises: · 15,000 m3 demolition waste; and · 48,000 m3 excavated material from the basement and foundations. 3.2 Construction Estimates of key construction materials are listed below: · 10,000 m3 of reinforced concrete; · 1,600 tonnes of structural steelwork · 4,800 m2 façade cladding; and · 20,000 m2 internal walls, partitions and general fit-out materials. 3.3 Plant and Equipment Consideration has been given to the types of plant that are likely to be used on-site during the demolition and construction phases of the Proposed Development. The plant and equipment associated with each key element of the construction process is set out in Table 1.

Table 1: Estimated Types of Plant during the Demolition and Construction Phase

Stage Plant Deconstruction Substructure Superstructure Fit-out

360o Excavators Breakers/Crushers/Dumpers Mobile/Tower Cranes Air Compressors Power Tools Hand/Power Tools Wheel Washing Plant Piling Rigs Scaffold Delivery Trucks Skips and Skip Trucks Forklift Trucks

Note: - Usage of plant at each stage. 3.4 Hours of Work It is anticipated that the core working hours for demolition and construction will be set out as follows: · 0800 – 1800 hours Weekdays; · 0800 – 1300 hours Saturday; and · Working on Sunday will be subject to reasonable notice. All work outside these hours will be subject to prior agreement, and/or reasonable notice to the City of London (CoL), who may impose certain restrictions. Although night time working will not normally be undertaken, it is expected that some deliveries will take place at night and that certain works may have to be undertaken during this period.



BRUCESHAW

4.0 PROPOSED CONSTRUCTION METHODOLOGY 4.1 Site Enabling and Deconstruction Prior to deconstruction we propose that the asbestos removal and soft strip out works within the existing building is completed. Deconstruction proper will then commence once access into the courtyard can be provided, and although subject to the Highways Authorities agreement, it may be possible to make an earlier start to construction of the upper levels by using a temporary crane for specific and coordinated lifts positioned on Savage Gardens or Muscovy Street. The construction access/egress to the courtyard will be provided by the construction of two ‘tunnels’, which will subsequently be incorporated within the permanent works. Provision of this essential access requires careful temporary removal of a line of columns and a limited amount of the existing façade to the Savage Gardens elevation as well as some minor internal demolition. We anticipate that this could be completed within twelve weeks, to allow truck access to the courtyard for the removal of construction and demolition waste. The results of the site investigation have confirmed the presence of significant war damage debris and existing masonry structures and it will be necessary to carefully coordinate the removal of this material prior to piling works. The Project Team will ensure that all appropriate measures are taken by the contractors responsible for this key element of the work. 4.2 Basement Excavation and Foundation Strategy Phase 1 will take the construction as close as possible to the works access with the exact position dependent on the agreed location for the works access as Diagram 1 and detailed analysis of the ground conditions. During excavations, detailed monitoring of existing services, old tunnels and the like will be required. Archaeological input will also need to be considered, all which may have a negative timing implication on the proposed construction programme. Phase 2 will be retained so that the construction access can be used allowing the courtyard and Seething Lane Garden works to progress concurrently. The reinforced concrete works to the courtyard will commence before the concrete works to Seething Lane Garden and a crane would be engaged full time in this area servicing the frame construction. The reinforced concrete to Seething Lane Garden would progress in the same two phases as the excavations. However the reinforced concrete to Phase 1 would have to be complete prior to Phase 2 commencing. Between Phase 1 and Phase 2 the fact the truck route needs to be maintained for the courtyard works, so there is no significant opportunity for overlap. However, once the excavation works commence in Phase 2 of Seething Lane Garden, the steel frame will have commenced in the courtyard. This will mean that the construction access will not be a significant materials route during Phase 2. Materials such as structural steel will be lifted by crane over the building and utilised in the courtyard. The new ground floor slab of the Seething Lane Garden would also be used as a loading area for two of the three proposed cranes. The excavation works in Seething Lane Garden needs to be carried out in two phases as Diagram 1.

Diagram 1

Phase 2

Phase 1

Access Tunnels



BRUCESHAW

4.0 PROPOSED CONSTRUCTION METHODOLOGY continued 4.3 Retaining Structures It is expected that excavation of the Seething Lane Garden would be performed following installation of perimeter retaining walls. Retaining measures will be designed by suitable contractors to allow for earth pressures and groundwater control issues. Without detailed knowledge of proposed excavation sequence, it is likely that propped retaining walls will be required for the basement excavation. A specialist contractor will carry out a final detailed retaining wall design once the final basement level has been established. The presence of existing hard standing, footings and substructures may present obstructions during retaining works and basement excavation and will need to be considered in design of such works. Groundwater inflow will be considered when determining the details of basement construction and appropriate retaining walls. Retaining measures should be designed for groundwater cut-off. Drawdown of groundwater levels around the exterior of the site should be minimised as this may induce ground settlement affecting adjacent structures. 4.4 Superstructure The superstructure works comprise new build which is primarily steel frame construction with composite concrete floors and works within the existing building to accommodate the additional loading imposed by the new floors and alterations to the fabric of the building to allow for the change of use from offices to hotel. Of particular importance is the architectural steelwork which will be required within the courtyard as part of the rotunda and façade support. Internal partitions will be a mix of blockwork and a proprietary partitioning system and the building finishes will be world class, specified and installed to the highest of standards. 4.5 Façade The courtyard glazing is a critical activity and one which will have a significant influence on the detailed design. In conjunction with Woods Bagot and Buro Happold, we have selected five specialist international façade contractors, with the necessary expertise to undertake the work and the overall lead time to site commencement is predicted to be 26 months. Therefore we met with each of the façade contractors in August 2008 to introduce the project and to establish a shortlist of suitable contractors. In response to the pre-qualification process, a number of façade contractors have been selected to assist Woods Bagot with the planning submission during October 2008. Detailed design with the preferred façade contractors is scheduled to start by December 2008.

4.6 Fit-Out Works The first fix for the fit out to the inner rooms and apartments can commence as soon as the temporary weathering has been completed, which will allow the interior fit-out together with mechanical, electrical and plumbing systems will commence. Both operatives and materials will be supplied to each floor utilising materials hoists strategically located around the building. Work shall progress from the lowest floor upwards. Temporary lighting and power systems will be installed at each floor to serve these operations. Temporary welfare (toilet and washing) facilities will be provided every third floor for ease of access for all operatives. 4.7 Mechanical and Electrical Services Long lead time issues and the essential coordination of the architectural and structural and mechanical and electrical design requires that it should be sufficiently advanced by the end of January 2009 to enable contractor procurement and negotiations to commence early 2009.

4.8 External Works and Landscaping It is anticipated that once the structure and building envelopes have been completed to the top floor that works on completing the common/service areas surrounding the building will commence. This will include completion of service and drainage lines, waterproofing to the basement, landscaping of Seething Lane Garden, paving and erection of external lighting. Only when all external works are finalised and the building envelope is completed, will the safety hoarding be dismantled and final ‘dressing’ of external public areas take place. 4.9 Commissioning and Building Handover As each system is completed throughout the buildings, they will be tested in accordance with the mandatory specifications and codes. No enclosed spaces will be closed such as ceiling areas and service shafts until such tests are completed and signed off. Fire sprinkler systems will be tested and inspected as required under national regulations. On completion of all works the buildings and systems shall be subjected to statutory inspections and testing before finally being handed over and occupied by the tenants.



BRUCESHAW

5.0 SITE LOGISITICS 5.1 Introduction The management of the site logistics is key to the success of the project and will require a dedicated logistics team to develop a detailed plan to control and manage the site. Deliveries will only be accepted on a just-in-time principle. There will be no storage allowed on-site and it is expected that all deliveries will be booked in with the logistics team not less than 24 hours prior to arrival on-site. A delivery zone will be established on site and will be able to hold say three to four trucks at any time with consideration being given to the provision of an offsite holding area for vehicles with possibly limited material storage to facilitate efficient deliveries. The principles of the logistics plan will be detailed in all tender and contract documents issued to suppliers and sub-contractors. It is anticipated that site logistics will form a significant part of the pre-appointment meetings for contractors and sub contractors and that regular coordination meetings will be held throughout the construction phase of the project. In view of the location of the site, the constraints on traffic and the permits that will be required for vehicles to access the site, a senior member of the logistics team will be nominated as a liaison officer responsible for communication with the local highway authorities and neighbours with regard to traffic problems, planned large deliveries and road maintenance issues. In this way it is anticipated that the risk of material shortages at key times can be reduced to a minimum. 5.2 Concrete Pumps Concrete pumps will be used extensively throughout the project. For the courtyard the pump will be driven in through the access tunnel and parked in various locations depending on pour requirements whether at basement or at upper floor levels. For Seething Lane Garden the pump could be parked in the loading bay on Pepys Street allowing the concrete trucks to back straight up to it just off the main street. A traffic marshal will be in place to ensure that there are no trucks parked up on the public street and that they are called in as required. 5.3 Site Accommodation As shown in Diagram 2, it would be possible to utilise some of the proposed ground floor rooms as project office and welfare accommodation. This would mean any external space which can be agreed with the local highway authorities could be used solely for loading/temporary storage. The site accommodation will be relocated towards the end of the project out to the Seething Lane Garden area as the programme requires. The main pedestrian entrance would be right alongside the accommodation area so would heighten security and ease Health and Safety concerns. 5.4 Personnel Access The proposed site personnel access is anticipated to be located at the corner of Muscovy Street and Seething Lane Garden and will consist of a swipe card system with CCTV. All personnel will be issued with access swipe cards and a ‘no card, no entry’ principle will be applied. It also allows site management to quickly and easily track what resources are on site on a day to day basis. It is good practice from both a Health & Safety and logistics perspective to keep the pedestrian access and vehicular access for deliveries completely segregated.

Diagram 2

5.5 Deliveries Each contractor will have their own views on the detailed arrangements but it is likely that Seething Lane Garden and the Main Building / Courtyard will have their own separate delivery areas. Diagram 2 above shows a likely scenario. All deliveries will need to be kept off the main streets and the area will need to be protected by rigid barriers; it could have a ‘roll in roll out’ system meaning that the delivery trucks must follow the flow of the traffic. This will reduce disturbance to the neighbours and the general public and ensure that there is no on-street loading or unloading which has clear safety and traffic management benefits for all involved. Delivery arrangements will of course need to be agreed with the City of London.

4 nr builders’ hoists 1 pedestrian entrance 1 nr large loading bay staff accommodation

Pedestrian Entrance – CCTV, Swipe Card & 24 Hr Security

Possible Drive-In Drive-Out Loading Bay Position

Workers Accommodation

Management Offices & Accommodation

Raised Loading Platform with 2 no builders hoists

Builders hoist installed in lift shaft.

Builders hoist installed in truck lift shaft.



BRUCESHAW

5.0 SITE LOGISITICS continued 5.6 Craneage The intention is to place tower cranes on the roof of the existing building as Diagram 3 to facilitate the construction but there may be an advantage to be gained by setting a crane on the new Seething Lane Garden ground floor slab as soon as it is complete because the slab could also be used as hard standing for unloading / loading of materials. Excavated material from the courtyard will be brought out from the side of the building into the Seething Lane Garden Phase 2 area and taken away with the excavated material from Phase 2. This option will be subject to further discussion with potential contractors during the procurement process because whilst it is a viable option for consideration, in practice it is thought that this may not bring about any significant programme benefit as achieving the proposed hotel soft opening date is not dependent on the delivery of the works to Seething Lane Garden provided the works access tunnel to the Central Courtyard is available and maintained as long as necessary. This would also be a more expensive option for the construction team to undertake in view of the access restrictions and safety considerations. Nonetheless, a study of the average lifting requirements for each major phase of the works will need to be carried out to obtain estimates of the actual daily volume of tasks required per crane but at this point in time we would expect three cranes to be employed and located as suggested on the sketch below. These locations are indicative and will need to be agreed with the City of London (CoL). Buro Happold propose that the three tower cranes are placed above the main existing stair cores although some additional temporary support structure may be required to the lower existing floors as Appendix B.

Diagram 3

60m LuffingCrane

60 m Luffing Jib Crane erected outside loading bay by mobile crane

Possible Drive-In Drive-Out Loading Bay Position

60 m Luffing Jib Crane



BRUCESHAW

5.0 SITE LOGISITICS continued 5.7 Construction Vehicle Movements Heavy Goods Vehicle (HGV) movements during this phase will have to be monitored closely with detailed traffic management and logistics plans updated and monitored daily. The total duration of deconstruction works is assessed at approximately 26 weeks. Following deconstruction, the total duration for the basement excavations will be approximately 72 weeks. Major material deliveries for steelwork and the like will commence prior to the completion of the excavations until completion of the project. Table 2 provides indicative deconstruction and construction HGV movements for the Proposed Development. Table 2: Indicative Deconstruction and Construction Activities, and Approximate Duration Activity Approximate HGV

Movements Estimated Loads per Day

Deconstruction 1,300 10

Basement Excavation 4,300 40

Superstructure and Fit-out 2,400 8

Total Period of Activities

8,000

58

6.0 POTENTIAL ENVIRONMENTAL IMPACTS 6.1 Potential Impacts during Demolition and Construction A review has been undertaken of the potential sources of adverse impacts associated with demolition and construction works. The results of this have been presented in Table 3. Table 3: Issue Potential Impacts Dust/Air Quality Wind blown dust from ground surfaces, stockpiles, vehicles, work faces

and cutting and grinding of materials. Exhaust emissions from lorries and plant delivering and removing materials including dust and particulates.

Ecology Disturbance to nesting birds. Water/mud runoff into drains. Energy Usage Indirect impacts associated with energy consumption such as CO2

emissions, depletion of natural resources, air pollution etc (material selection and embodied energy issues are covered during the sustainable design section).

Fuel & construction materials storage

Accidental spills, discharges to drains/stormwater systems, contamination to ground.

Hazardous materials & contaminated land

Exposure of the workforce to deleterious/hazardous materials and contaminated land, mobilisation of any source contaminants and creation of pathway from source to groundwater receptor.

Noise Increased road noise levels from vehicles. Increased noise levels from plant during deconstruction, piling and general construction works (e.g. from the use of air compressors and diamond cutters) on-site.

Site & surroundings pedestrian access

Restrictions on pedestrian access to walkways, footpaths and roads.

Traffic Traffic congestion caused by site traffic. Increased vehicle movements mainly consisting of HGVs. Transfer of mud and material from vehicles onto the public highway. Disruption from abnormal or hazardous loads. Exhaust emissions.

Waste Waste generation and its disposal. Water and Water Usage Increased sediment loadings to stormwater system. Potentially

contaminated stormwater runoff. Natural resources depletion. Vibration Increased vibration levels from vehicles. Increased vibration levels

from plant during deconstruction, piling and general construction works (e.g., from piling rigs attached to slave cranes).

Townscape Views Views impacted and/or impeded from construction equipment, particularly cranes.

Note: HGV – Heavy Goods Vehicles, CO2 – Carbon Dioxide.



BRUCESHAW

7.0 MITIGATION MEASURES 7.1 Demolition and Construction Method Statement A principal contractor for the demolition phase will be appointed to develop a Demolition and Construction Method Statement (DCMS). The DCMS will identify all the procedures to be adhered to through demolition and construction. Individual trade contracts will incorporate environmental control, health and safety regulations, and current guidance. This will ensure that all contractors involved with the demolition and construction phases are committed to agreed best practice. Trade contractors will be required to demonstrate how they will meet the targets of the DCMS. The DCMS will include the following items:

− Demolition and construction programme; − Broad plan of the demolition and construction works, highlighting the various stages and their

context within the whole project; − Details of the Environmental Management Plan (refer below), including restricted operations, site

access and housekeeping procedures; − Detailed site layout arrangements (including requirements for temporary works) during the

project, including plans for storage, accommodation, vehicular movement, delivery and access; − Site working hours; − Details of operations likely to result in disturbance, with an indication of the expected duration of

each phase with key dates. This should include a procedure for prior notification of CoL and relevant statutory and non-statutory (including neighbours) parties, so that local arrangements can be agreed;

− A procedure to ensure communication is maintained with CoL and the local community to provide information on any operations likely to cause disturbance (through for example; meetings and newsletters);

− Provisions for affected parties to register complaints and procedures for responding to complaints; and

− Provisions for reporting to CoL and the Applicant. 7.2 Management of Trade Contractors Individual contractors (e.g. for waste removal) will incorporate relevant requirements in respect of environmental control, based largely on the standard of ‘good working practice’ as outlined in the DCMS, as well as statutory requirements. Potential Trade Contractors will be required to demonstrate how they will achieve the provisions of the DCMS, how targets will be met and how potential effects will be minimised. 7.3 Public Relations A designated Project Team member will deal with complaints and enquiries. This individual will be named at the site entrance, with a contact number, and will be identified to CoL and community groups prior to the start of construction, and whenever a change of responsibility occurs.

7.4 Environmental Management Plan (EMP) Matters concerning site activities during demolition and construction that relate to environmental issues will be discussed and agreed with CoL in advance of works commencing. As such, the site will be managed in accordance with best practice. This includes the agreement of the DCMS and the EMP, which will include:

− A commitment to environmental protection (all Consultants and Trade Contractors will be invited to declare their support for this at the tender stage);

− Document planning provisions. This section provides background information and considerations on impact types to help the project team plan both their activities in relation to environmental issues and their control measures. References will also be included on what will be needed to comply with the environmental elements of any planning conditions;

− Detail on control measures and activities to be undertaken to minimise environmental impact; − Monitoring and record-keeping requirements; − Establishment of baseline levels for noise, vibration and dust; − Details of a dedicated point of contact during both normal working hours and after hours, with

responsibility to deal with environmental issues if they arise; and − Commitment to a periodic review of the EMP and regular environmental audits of its

implementation. Any complaints will be logged on-site, fully investigated and reported to the relevant department of CoL as soon as possible. The complainant will be informed as to what action has been taken. In the event of unusual activities or events, CoL and other relevant third parties (i.e. statutory and non-statutory bodies) will be notified in advance of the work being carried out.



BRUCESHAW

7.0 MITIGATION MEASURES continued 7.5 Construction Vehicle Management Whilst no long-term road closures are envisaged, short-term closures of Seething Lane and/or Muscovy Street will be required in order to establish and remove the tower cranes and to deliver large items of building plant. The requirement for short-term road closures will be discussed and agreed with the CoL during preparation of the DCMS. At present the side of the proposed development site facing Seething Lane Garden contains space for approximately 11 cars, which will be removed during the demolition phase of the Proposed Development. There will be a general policy of no on-site car parking and the site labour force will be encouraged to use public transport. Unapproved parking on public roads will not be allowed. Provisions will be made within the Proposed Development site, where possible, for essential on-site parking only. Any local traffic management measures for site access will be agreed with the CoL. 7.6 Access and Egress Each contractor will have their own views on the detailed arrangements but it is likely that Seething Lane Garden and the Main Building/Courtyard will have their own separate delivery areas. Diagram 2 above shows a likely scenario. All deliveries will need to be kept off the main streets and the area will need to be protected by rigid barriers; it could have a ‘roll in roll out’ system meaning that the delivery trucks must follow the flow of the traffic. This will reduce disturbance to the neighbours and the general public and ensure that there is no on-street loading or unloading which has clear safety and traffic management benefits for all involved. Delivery arrangements will of course need to be agreed with the CoL. In consultation and agreement with the Highways Authorities a traffic management system will be established to avoid congestion in the vicinity of the Proposed Development. Loading and unloading will be restricted to certain times of the day to further minimise the likelihood of congestion on highways surrounding the site and strict monitoring and control of all vehicles entering, exiting and travelling across the site will be maintained including:

− The setting of specific delivery and collection times; − Consolidation of deliveries wherever possible; − A system of ‘just in time’ deliveries; and − The requirement for prior authorisation when visiting the site via vehicle, which is managed by

the logistics manager. The manager will agree at least a week in advance delivery schedules and then reviewing and prioritising them on a daily basis.

The use of a waste compactor on-site will be investigated as an additional way of reducing the number of vehicle trips related to waste collection, where applicable.

7.7 Road Cleanliness To minimise site-generated material on roads, the Contractor will take measures to include the provision of suitable facilities at site exits, where necessary. This will include wheel-washing facilities and, in addition, the use of a suitable means to clean all highways in the vicinity of the site from any site generated matter. Collected debris will be disposed of as controlled waste in accordance with the Duty of Care Regulations (1991) at a licensed waste disposal facility.



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7.0 MITIGATION MEASURES continued 7.8 Management of Noise, Vibration and Dust Full assessments of activities with the potential to generate high levels of noise and vibration are presented in the ‘Acoustic Assessment’ that accompanies this planning application.. Mitigation measures will be incorporated within the DCMS. Best practicable means of preventing, reducing and minimising noise will be adopted in agreement with CoL. This aspect of the works is likely to be regulated by an agreement under Section 61 of the Control of Pollution Act (COPA). In addition, it is expected that the Proposed Development will adhere to the relevant CoL Code of Practice during demolition and construction. On-site good practice procedures will be followed in order to mitigate noise, vibration and air pollution (e.g. through dust and fume generation) impacts under the Considerate Contractors Scheme. Measures currently planned to be adopted include:

− Use of hoarding around the entire perimeter of the site to assist in the screening of noise and dust generation from low-level sources;

− Hydraulic deconstruction and construction to be used in preference to percussive techniques where practical;

− Off-site pre-fabrication to be used, where practical, including the use of pre-fabricated structural elements, cladding, toilets, mechanical and electrical risers and packaged plant rooms;

− All plant and equipment to be used for the works to be properly maintained, silenced where appropriate, and operated to prevent excessive noise and switched off when not in use and where practicable;

− Plant will be certified to meet relevant current legislation and British Standard 5228 (BS5228) Standards;

− All Trade Contractors to be made familiar with current legislation and the guidance in BS5228 (Parts 1 and 2), which will form a prerequisite of their appointment;

− Threshold vibration limits will be set and monitoring equipment established at locations outside the site that are deemed sensitive, such as nearby office areas and churches and listed buildings;

− Loading and unloading of vehicles, dismantling of site equipment such as scaffolding or moving equipment or materials around site will be conducted in such a manner as to minimise noise generation. Where practical these will be conducted away from noise sensitive areas;

− Deviation from approved method statements to be permitted only with prior approval from the Principal Contractor and other relevant parties. This will be facilitated by formal review before any deviation is undertaken;

− Noise complaints, or exceedences of action levels, will be reported to the Contractor and immediately investigated;

− Brushing and water spraying of heavily used site hard surfaces and access points as required; − Wherever possible, plant and equipment will be switched off when not in use; − Vehicles transporting materials capable of generating dust to and from site to be suitably

sheeted on each journey to prevent release of materials and particulate matter; − Effective wheel/body washing facilities to be provided and used as necessary; − Burning of wastes or unwanted materials will not be permitted on-site; and − All hazardous materials including chemicals, cleaning agents, solvents and solvent containing

products to be properly sealed in containers at the end of each day prior to storage in appropriately protected and bunded storage areas.

As far as possible, demolition and construction works will be carried out using methods that minimise noise. For actions such as breaking out of old foundations, there is little reasonable choice other than to use percussion tools in one form or another. Quieter types of machinery will be specified for these works where possible. The use of music broadcasting equipment on site will not be permitted, to minimise noise pollution to adjacent buildings and occupied areas. The piling will be employed during the substructure construction. The auger piling rig generates little vibration or ground movement unless an obstruction is encountered. Noise related impacts attributable to the piling, along with other construction related noise impacts will be controlled through generic and site-specific mitigation measures outlined within the DCMS. All piling contractors will be asked to submit method statements clearly identifying the proposed machinery and their methods of ensuring that no excessive vibration or noise is generated.



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7.0 MITIGATION MEASURES continued 7.9 Site Waste Management Plan A formal and detailed Waste Management Plan will be obtained from the successful contractor. The disposal of all waste or other materials removed from the Site will be in accordance with the requirements of the Environment Agency, Control of Pollution Act (COPA), 1974, Environment Act 1995, Special Waste Regulations 1996 and the Duty of Care Regulations 1991. In general and in accordance with the principles of the UK Government’s ‘Waste Strategy 2000’, a principal aim during demolition and construction will be to reduce the amount of waste generated and exported from the Proposed Development site. This approach complies with the waste hierarchy whereby the intention is first to minimise, then to treat at source or compact and, finally, to dispose of off-Site as necessary. All relevant contractors will be required to investigate opportunities to minimise and reduce waste generation, such as:

− Agreements with material suppliers to reduce the amount of packaging or to participate in a packaging take-back scheme;

− Implementation of a ‘just-in-time’ material delivery system to avoid materials being stockpiled, which increases the risk of their damage and disposal as waste;

− Attention to material quantity requirements to avoid over-ordering and generation of waste materials;

− Re-use of materials wherever feasible (e.g. re-use of crushed concrete from demolition process for fill (crushed using an on-site concrete crusher); re-use of excavated soil for landscaping; re-use of internal equipment and plant from existing buildings). Concrete will be taken off the Proposed Development site for crushing and re-use. The Government has set broad targets of the use of reclaimed aggregate, and in keeping with best practice, contractors will be required to maximise the proportion of materials recycled;

− Segregation of waste at source where practical; and Re-use and recycling of materials off-site where re-use on-site is not practical (e.g. through use of an off-site waste segregation facility and re-sale for direct re-use or re-processing) Our expectations in this regard are shown in the Table 4.

Overall, the waste management for the site is likely to comprise of the following:

− The material from the courtyard demolition and excavations will be loaded onto trucks within the courtyard and driven straight out through a designated carriageway through Seething Lane Garden. A strict internal traffic management plan would have to be adhered to, to ensure there are no jams at the tunnel entrance/exit;

− The waste material from Seething Lane Garden will be loaded directly into trucks within the Seething Lane Garden area. Once the excavation becomes too deep to load directly into trucks a tower crane will likely be used for the removal of the final portion of the dig; and

− The soft demolition strip out material will be brought down in builders’ hoists situated alongside the proposed loading area on Pepys Street and will be loaded directly into waiting skips.

Skips will be covered to prevent dust and debris blowing around the site, and will be cleared on a regular basis. Burning of wastes or unwanted materials will not be permitted on-site. All hazardous materials including chemicals, cleaning agents, solvents and solvent containing products will be properly sealed in containers at the end of each day prior to storage in appropriately protected and bunded storage areas.

As the new buildings become enclosed, the rubbish will be collected in lightweight floor-based wheeled skips that can manoeuvre around the configuration of the units. The skips will then be taken to ground floor level by hoist, and either disposed of into larger skips, or if suitable, placed into a compactor to reduce the volume of the waste before it is taken off-site. Table 4

Material Target Probable Location Architectural Salvage Structural steel for re-use Metals Hardcore (brick / block / concrete etc…) Excavated Material / clay etc Timber Glass (non-tempered, non-laminated and non-bomb proofing film etc…) Mixed waste Asbestos Other toxic / hazardous materials

100% re-used 100% re-used 100% recycled 100% recycled Up to 80% re-used The amount re-used will depend on the material 100% recycled The amount recycled will depend on the material 100% landfill Action subject to relevant, specific legislation

Several architectural salvage companies in East London. Any complete sections salvaged during the demolition works will be retained by the contractor for re use in temporary works on this or possibly other projects with the balance taken to transfer stations in Edmonton, Canning Town and Bethnal Green. Every effort will be made to recycle these materials on site with any surplus being taken to waste transfer stations in Stratford and Hackney. Clay – 100% processed for re-use (subject to analysis):at a site in Dagenham where the material will then be lime / cement stabilised to create a suitable engineered fill for use as a sub-base or piling mat for construction projects. We will attempt to salvage any re-useable timber for hoardings, battening, shuttering etc for possible for use on site with the balance being retained by the contractor or processed at a waste transfer station in Barking or Hackney. Processing facility in Greenwich. All will be taken to transfer stations in Hackney or Ockenden, Essex and fully sorted to maximise recycling potential. An absolute minimum will remain for transport to landfill. May be taken to a licensed site in Longfield, Kent or other suitable alternative. Example: Oils can often be reclaimed and a suitable facility is located in Rainham, Essex



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7.0 MITIGATION MEASURES continued 7.10 Protection of Archaeological Resources The precise details of any further archaeological evaluation and the subsequent mitigation strategy will be agreed with the CoL Senior Planning and Archaeology Officer and English Heritage (where appropriate) prior to any intrusive ground works. Any necessary archaeological work will be conducted in accordance with a ‘Written Scheme of Investigation’ drawn up in consultation with the CoL. Refer to the ‘Archaeological Assessment’ that accompanies this planning application for further details. 7.11 Protection of Ecological Resources The ‘Ecological Impact Assessment’ that accompanies this planning application describes the baseline ecological conditions on the Proposed Development site, assesses the site’s ecological value and details the mitigation measures necessary to eliminate any adverse impacts on the ecological status of the area. In the event that ecological issues are identified during the course of project activities, consultation with the Principal Contractor, project team and relevant statutory and advisory bodies such as Natural England and the Environment Agency (EA) will be undertaken as necessary. We are awaiting the final draft of the Ecology Report to complete our report. 7.12 Protection of Views Views of the existing building by the general public will be affected to some degree during the demolition and construction works and we intend to mitigate the impact by the imaginative decoration of the construction site hoardings which may include a representation of the finished scheme or other suitable images. 7.13 Protection of Water Resources In summary, surface drainage, ground water seepage, and any minor dewatering will pass via settlement tank facilities to the foul water sewer. Discharge arrangements into the foul water sewer will be agreed with Thames Water Utilities Limited. All liquids and solids of a potentially hazardous nature (e.g. diesel fuel, oils, and solvents) will be stored on surfaced areas, with bunding, to the satisfaction of the EA. The Principal Contractor will ensure that any water that may have come into contact with contaminated materials will be disposed of in accordance with the Water Resources Act (1991) and other legislation, and to the satisfaction of the EA and/or Thames Water.

7.14 Energy and Water Usage All relevant contractors will be required to investigate opportunities to minimise and reduce use of energy and water, such as:

− Use of alternatives to diesel/petrol powered equipment where possible; − The incorporation of sources of renewable energy to offset the use of main utilities will be

considered; − Selection and specification of energy efficient plant and equipment wherever viable; − Implementation of staff based initiatives such as turning off taps, plant and equipment when not in

use both on-site and within site offices; encouraging a paper-reduced office and encouraging double sided printing and photocopying when these activities are necessary;

− Use of recycling water systems such as wheel washes; and − Use of a rainwater harvesting system for use in equipment and vehicle washing will also be

investigated. The energy and water consumption of the project will be monitored, either through sub-metering or reading utility bills, to allow comparison against best practice benchmarks and improvements to be made.



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APPENDIX A REFERENCES HMSO, (1991); Statutory Instrument 1991 No. 2839 - The Environmental Protection (Duty of Care) Regulations 1991. HMSO, (1991); Statutory Instrument 1988 No. 818 (c.26) - Control of Pollution Act 1974 (Commencement No. 19) Order 1988. British Standard Institute (BSi), (1997); BS 5228-1-5:1992-1997 – Noise and Vibration Control on Construction and Open Sites. HMSO, (1995); Environmental Act 1995. HMSO, (1996); Special Waste Regulations 1996. DETR, (2000); Waste Strategy 2000 for England and Wales. HMSO, (1994); Water Resources Act 1991 (c.57).

DESIGN INFORMATION This report has been prepared from the following drawings and documents: Architects Drawings Revision Drawing Title

Dwg No. A2100 P6 Proposed Plan - Basement 4 Dwg No. A2101 P6 Proposed Plan - Basement 3 Dwg No. A2102 P7 Proposed Plan - Basement 2 Dwg No. A2103 P7 Proposed Plan - Basement 1 Dwg No. A2104 P7 Proposed Plan - Lower Ground Floor Dwg No. A2105 P7 Proposed Plan - Ground Floor Dwg No. A2106 P7 Proposed Plan - Ground Floor Mezzanine Dwg No. A2107 P7 Proposed Plan - First Floor Dwg No. A2108 P7 Proposed Plan - Second Floor Dwg No. A2109 P8 Proposed Plan - Third Floor Dwg No. A2110 P6 Proposed Plan - Fourth Floor Dwg No. A2111 P6 Proposed Plan - Fifth Floor Dwg No. A2112 P7 Proposed Plan - Sixth Floor Dwg No. A2113 P7 Proposed Plan - Seventh Floor Dwg No. A2114 P6 Proposed Plan – Tower Plans Dwg No. A2115 P2 Proposed Plan – Roof Plan Dwg No. A2116 P7 Proposed Plan - Roof Plan Dwg No. A3000 P3 Proposed Elevation South East Dwg No. A3001 P4 Proposed Elevation East Dwg No. A3002 P4 Proposed Elevation North Dwg No. A3003 P3 Proposed Elevation West Dwg No. A3004 P3 Proposed Elevation South Dwg No. A3005 P3 Proposed Elevation Pavillion West Dwg No. A3101 P3 Proposed Section B-B Dwg No. A3102 P3 Proposed Section C-C Dwg No. A3104 P3 Proposed Section E-E Dwg No. A3107 P2 Proposed Section D-D Structural Strategy Statement for Planning – Revision 02 dated November 2008 prepared by Buro Happold

THOMAS ENTERPRISES INC.10 TRINITY SQUARECONSTRUCTION METHOD STATEMENT


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APPENDIX B - BURO HAPPOLD 3D VISUALISATION

1. 2.

4. 3.

Method Statement and Risk Analysis Guidelines

Documents

Transcript of Method Statement and Risk Analysis Guidelines