KOC.he.018 - Occupational Health Risk Assessment Procedure

KOC.HE.018 – Occupational Health Risk Assessment Procedure Page 1 of 21

Occupational Health Risk Assessment Procedure Document Number: KOC.HE.018 Approver: (Technical)

Manager HSE

Author:

Team Leader Health & Environment

Approver: (Administrative)

Manager HSE

Document Coordinator:

Team Leader Standards

Scope:

All KOC Directorates Control Tier:

Issue Date: Revision/Review Date:

July 14, 2011

Issuing Group:

HSE Group

June 18, 2012

Next Review Date:

June 17, 2015

Tier 3

1.0. Purpose / Scope Occupational Health Risk Assessment (OHRA) is a key to identify all types of hazards, evaluate all types of OH risks to the business, and to estimate the potential health risk due to chemical, biological, physical, ergonomic and psychological hazards or other occupational health hazards on an identified working population under a specific set of environmental and working conditions and for a certain timeframe. This procedure provides the approaches to occupational health risk assessment which would serve as the foundation of preventive health practice among employees and the contractors in KOC. The purpose of this qualitative health risk assessment is to: 1. Identify the types of chemical, physical, biological, ergonomic and psychological hazards that are, or are likely to be present in the work areas of all the KOC operational areas. 2. Establish which employees or groups of employees are potentially exposed to the occupational health hazards in KOC. 3. Prioritize the Occupational Health Hazards based on qualitative risk assessments that estimates the extent of exposure. 4. Prioritize the control measures for improving the occupational health status of the employees 5. Comply with regulatory requirements, company policy and business requirements Implementation of this procedure will enable KOC to enhance the occupational health status of individual employees of the company and ensuring remedial action to minimize or eliminate the occupational health hazards

2.0. Definitions Acute Health Effects – Acute health effects are those that occur suddenly and in a short time (seconds to hours) following exposure, generally to higher levels or concentrations of a health hazard. An acute exposure runs a comparatively short course. Biological Hazards – Materials and organisms including all infectious organisms (bacteria, fungi, parasites, viruses, etc.,) which can cause disease in humans due to the exposure. Other biological hazards include human tissues, biologic toxins or select agents, fluids, cells or cell culture and animals known to be vehicles or reservoirs of zoonotic diseases. Control Tier 3

Revision Date June 18, 2012 Uncontrolled Copy if printed.


Carcinogen: A substance or agent that can cause cells to become cancerous by altering their genetic structure so that they multiply continuously and become malignant. Asbestos, DDT, and tobacco smoke are examples of carcinogens. Ceiling Limit – Ceiling limit refers to the concentration of a chemical or material that no person should be exposed to for any period of time during the work day. Chemical Hazards - An element or mixture of elements or synthetic substances that are considered harmful to human health. These arise from excessive airborne concentrations of mists, vapors, gases, or solids in the form of dusts or fumes. In addition to the hazard of inhalation, some of these materials may act as skin irritants or may be toxic by absorption through the skin. Chronic health effect: Prolonged or repeated exposures over many days, months or years. Symptoms may not be immediately apparent. Chronic health effects are often irreversible. Examples: lead or mercury poisoning, cancer. Consequence - It is the undesirable result of an incident. It is usually measured in terms of personal injury, damage to property, business interruption, cost implication, legal implication or adverse reputation. Dose – A term used interchangeably with dosage to express the amount of energy or substance absorbed in a unit volume of an organ or individual. Environment - Surroundings in which an organization operates, including air, water, land, natural resources, humans and their interrelations. Ergonomic Hazards – Conditions of a job, process, or operation that contribute to the risk of developing back injuries and Repetitive Strain Injuries Exposure – The condition of being subjected to something, as to infectious agents, extremes of weather, radiation, and other environmental factors which may have a harmful health effect / risk. In the other term, the extent of actual contact with chemical, physical, biological agents and others by inhalation, ingestion, dermal and eye. Exposure Assessment – Determination or estimation (qualitative or quantitative) of the magnitude, frequency, duration and routes of exposure. Frequency – The number of occurrences of a specific event over a time period (usually a year) Hazards – A state or condition or physical or chemical characteristic is having the potential for causing damage to property, people, or environment. Hazard Analysis – It is a systematic and quantitative assessment of potential hazards and its probable consequences. Hazard Identification – Determining whether an occupational health hazards can cause adverse health effects in humans and what those effects might be. Health – Health is a state of complete physical, mental and social well-being and not merely the absence of diseases or infirmity Health Consequences – These are the effects of the event on health, either negative (such as injury, disease or disadvantage), or positive. Control Tier 3



Health Outcomes – The health status of individuals, groups within the working environment, or environment as a whole in the facility Health Risk – The likelihood that, under specified conditions of exposure, the health of a certain population will be harmed. Health risk is the combination of likelihood that harm to health may occur (which is related to exposure) multiplied by the severity of health effects (hazard). Health Risk Management – Health risk management is a consolidated effort to manage all potential health hazards associated with an activity, project, process or system. Health Risk Register (HRR) – A document providing a, but complete overview of identified hazards, corresponding occupational health risks, cause, consequence of any activity or facility within KOC jurisdiction and theirs control measures necessary to manage them. Likelihood – A measure of expected frequency with which an event may occur. It can be expressed as a frequency, a probability of occurrence during a time interval or a conditional probability. Occupational Exposure Limits (OELs) – It is the level of chemical substances concentration in the work environment which does not lead to health damages of workers being exposed to them during the work shift. The terms are referred to as ‘Maximum Exposure Limits (MELs) and as ‘Occupational Exposure Standards’. Occupational Health (OH) – The medical systems that protect and enhance workers’ health, productivity and wellness by anticipating, recognizing, evaluating, controlling and managing workplace health hazards. These systems also mitigate illnesses and injuries by promptly recognizing, treating, investigating, and taking corrective actions. OH hazards can be chemical, physical, ergonomic, and biological in nature or related to stress or IAQ (Indoor Air Quality). Health Risk – The likelihood that, under specified conditions of exposure, the health of a certain population will be harmed. Health risk is the combination of likelihood that harm to health may occur (which is related to exposure) multiplied by the severity of health effects (hazard). Occupational Health Risk Assessment (OHRA) – OHRA is the systematic identification of occupational health hazards in the workplace and subsequent evaluation of occupational health risks. This process takes existing control measures into account and identifies and recommends further preventive or control actions where appropriate. Psychological hazard – Of or involving the influence of social factors or human interactive behavior. Physical Hazard: A factor within the environment that can harm the body without necessarily touching it. Vibration and noise are examples of physical hazards. Risk Management – The process of evaluating alternative actions, selecting options and implementing them in response to occupational health risk assessments. The decision making will incorporate scientific, technological and economic information. The process requires value judgments, for example on the tolerability and practicality of costs. Sensitizer: A chemical that causes a substantial proportion of exposed people or animals to develop an allergic reaction in normal tissue after repeated exposure to the chemical.

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Severity: The level of damage due to the exposure of the specific hazard. Short-Term Exposure Limit (STEL) – The maximum amount of harmful gas or dust to which a person may be exposed for a brief period (usually 15 minutes) without being physically harmed. Exposures above the TLV (Threshold Limit Value) – TWA (Time Weighted Average) up to the TLV-STEL should not be less than 15 minutes, should occur no more than four times per day, and there should be at least 60 minutes between successive exposures in this range. Significant Health Aspect – Any process / operation / activities / condition that interact with the worker’s health and it can create the occupational health risk to the employees. For. E.g., carrying excess load

3.0. General Requirements 

KOC HSE Management System Guidelines – Element 3, Risk Assessment, Management and Compliance



KOC HSE Management System Manual – Sections 4.3.1 (HSE Aspects, Hazards and Risk Management) and 4.3.3 (Objectives, Targets and Programs)



OHSAS 18001:2007 – Occupational Health and Safety Assessment Series (OHSAS) Requirements



Relevant HSEMS Procedures

4.0. Key Responsibilities 4.1. Higher Management (DMDs)  Ensure that the appropriate equipment, materials, supplies, and training services required by this procedure are budgeted and acquired.  Ensure compliance with this procedure through their auditing process.  Implement immediate corrective action for deficiencies discovered in this procedure.  Monitoring the ongoing effectiveness of this procedure.  Ensure the directorate’s compliance with this procedure.  Provide necessary resources for the implementation of this procedure within the directorate.  Responsible for reviewing and monitoring the management program for the high risks 4.2. Manager (All Groups)  Ensure that the occupational health risks are identified and assessed for all activities and / or facilities under their jurisdiction  Review and approve the Health Risk Register for their respective group as well as manage all activities and / or facilities under their jurisdiction.  Ensure availability of adequate resources (including manpower) to identify the occupational health aspects, assess as well as manage the occupational health risk for activities or facilities under their jurisdiction including training and awareness needs.  Record, maintain, review, update and communicate the Health Risk Register (HRR) for their respective group’s employees.

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4.3. HSE Team Leaders (Directorates / Assets)  Coordinate and support Managers and Higher Management to develop, review and maintain their respective group health risk register.  The contractors health risk register shall be reviewed by HSE team’s directorate / asset upon request from representative superintend of contract.  Coordinate and arrange for awareness needs to the employees as per the requirement. 4.4. Health and Environment Team Leader  Review, approve and maintain the template for Health Risk Register to ensure that the occupational health risks are evaluated consistently and all groups utilize the same template as a standard template across the KOC.  Coordinate and support Manager HSE to develop and review the occupational health hazard identification and health risk assessment for HSE group.  Responsible for monitoring the status of the significant occupational health risks of HSE group  Support HSE Teams - Directorates / Assets in awareness needs to the employees as per the requirement. 4.5. Employees 

KOC Employees to familiarize with Health Risk Registers of their respective groups to ensure implication of the significant occupational health aspects that are related to their own job / work functions.



Follow and Comply with their respective Group Health Risk Register and related control measures.

4.6 Superintendent of Contract  Ensure that the occupational health risks are identified and assessed by the Contractor for all activities and / or as per scope of work of contract. (The type of contract required to perform the HSE Risk Assessment are mentioned in Section No. 8.0 Specific Requirements for each type of Contract of KOC Document No. KOC.GE.033)  Review and approve the Health Risk Register for Contractors.  Ensure that the contractor communicating control measures to the personnel whose jobs are associated with significant occupational health risks. 4.7. Contractors  The contractor shall follow and comply with Health Risk Register requirements of respective groups and communicating control measures to the personnel whose jobs are associated with significant occupational health risks.  The contractor shall establish, implement and maintain Health Risk Register as per their scope of work / activity in line with this procedure.  The contractors Health Risk Register shall be reviewed by HSE teams - directorate / asset and approved by respective superintendent of contract.

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5.0. Procedure 5.1. Occupational Health Risk Assessment (OHRA) Process The OHRA process is summarized in the following diagram. The individual steps of OHRA process are explained separately.

Identify health hazards

Identify exposed groups and tasks

Evaluate and assess health risks

No Set priorities for high & medium risk areas

Yes Are existing precautions adequate?

Remedial Action Plan

Maintain records

Monitor, review and revise when necessary

5.1.1. Occupational Health Hazard Identification In general, the occupational health hazard identification process requires involvement of a competent and qualified person who has had training and experience in occupational health hazard identification, together with individuals involved and familiar with the activity being assessed The following section explains how occupational health hazards can be assessed in terms of their composition (i.e., the nature of the agent that is causing them); by the effect that the exposure causes or by reference to the workplace location in which the hazard occurs / emits. There are five key factors that influence the effects of potential health hazards:     

Time period of exposure; Level of Exposure (dose) Mode of exposure (e.g., inhalation or ingestion or skin contact) Individual susceptibility; Characteristics of the agent

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Occupational Health hazards can be classified as follows:

5.1.1.1. Physical     

Noise; Vibration (hand-arm, whole body); Ionizing and non-ionizing radiation; Thermal work environment; Ventilation  Illumination (Lux)

5.1.1.2. Chemical o o o o o o

Systemic poisons (e.g., heavy metals, pesticides); Irritants; Sensitizers (that cause skin and respiratory reactions); Acids and alkalis / caustic agents; Carcinogens. Toxic gases (ex: H2 S)

5.1.1.3. Biological    

Wildlife (animals including and guard dogs, reptiles, insects, plants); Due to Viruses, Bacteria, Fungi, Parasites; Bloodborne pathogens Contaminated food and drink; Poor hygiene (Catering, Accommodation, Toilet facilities, Waste disposal).

5.1.1.4. Psychological         

Workplace Stress Language difficulties Overcrowding; Discrimination; Bullying and harassment; Job design (control, content, workload); Job Organization (shift patterns, sleep deprivation, rotations); Lack of Leisure and recreation opportunities; Substance abuse / dependence and smoking.

5.1.1.5. Ergonomic Factors      

Man Machine interfaces Manual handling Repetitive movements Acoustic comfort Chromatic environment Ambient light (illumination) level

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The following environmental conditions can affect the exposure to occupational health hazards:     

Temperature and climate (e.g. extreme heat or cold) and wide temperature variations; Humidity and air quality; Daylight (extremes of dark or light); Transport; Location in relation to available occupational health services and facilities (distance and access);

The examples cited are not exhaustive and the hazard identification process will determine the occupational health hazard profile for the specific activity. Health hazards exposure can generate acute (immediate), and / or chronic (delayed) health effects: Acute effects (e.g., asthma):    

Occur suddenly; Appear within seconds to hours following exposure; Usually have an easily identifiable cause; May lead to removal from the hazard and / or seeking early medical attention.

Chronic Effects (e.g., asbestosis)  Occur gradually over a long period of time (often years);  May not be easily diagnosed or associated with a specific hazard;  Do not result in immediate remedial action as the individual may not be aware of the exposure and its potential results at the time. In order to make Occupational Health Hazard Identification more manageable and practicable, the group’s activities / job functions shall be assessed based on divisions as follows, provided all work areas and job functions are included in the assessment. Typical divisions include: 

Area / units (e.g. Offices, Ahmadi Hospital, Gathering Centre, Booster Station, etc.,);



Activities (e.g., Computer activity, Laboratory activity, Inspection activity, Sewage Disposal activity).

The following aspects shall to be taken into account for assessing the occupational health risks for each of the above mentioned hazards    

Workplace Activities Equipment and Materials Location

5.1.2.1. Workplace Layout It is important to consider whether the physical layout (for e.g., incorrect light, poor ventilation or lighting, confined space, ergonomic factors) of the work area can make the activity more risky to worker’s health.

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5.1.2.2. Activities All levels of workplace activity, including routine / non-routine tasks and emergency activities shall be reviewed before concluding the level of risk. Discussions with the personnel actually doing the job or others relevant shall be done, if needed.

5.1.2.3. Equipment and Materials Workplace equipment can cause a risk to workers’ health especially if it has been poorly designed, is used incorrectly or malfunctions. When listing the equipment and materials used in an activity, it will be necessary to consider the following:

5.1.2.3.1. Equipment:  Condition of the equipment;  Specific hazards linked to the equipment (noise, vibration, radiation, heat, cold and exhaust emissions)  Availability of training and method of use

5.1.2.3.2. Materials:  Physical and chemical characteristics of the materials  Quality of information (e.g., language and availability of material safety data sheet) pertaining to the materials being used.  Dispersion of the material during the activity may increase the hazard

5.1.2.3.3. Location Special consideration must be given to jobs which, under certain circumstances, are considered as safe and low risk but when performed in extreme conditions (e.g. extreme heat, cold or noise, altitude, confined space) render the task more hazardous and risky. Special consideration should also be given to personal protective equipment (PPE) and / or work / rest regimens when considering these highly hazardous situations. In certain cases, however, PPE may represent an additional risk (e.g., in extreme heat). Additionally, the location whether it is hazardous area or non-hazardous area should also be considered.

5.2. Occupational Health Risk Evaluation Occupational Health risk evaluation must consider the information generated in Hazard Identification Process as well as the following additional information.

5.2.1. Individual Susceptibility Occupational Health risk assessment is usually generic. It is important to consider the factors that influence the health variability, which includes: heredity, age, personal habits (e.g., smoking), medical and occupational history as well as health status.

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5.2.2. Exposures In order to assess the degree of exposure to an identified occupational health hazard, it may be necessary to quantify the level of personal and / or area (environmental) exposure and benchmark against accepted standards.

5.2.3. Cumulative Exposures Multiple exposures to occupational health hazards can occur either simultaneously or consecutively, adding to an individual’s total dose and potentially increasing the occupational health risk. If, for example, a combination of chemicals with similar toxicity is encountered, the effect may be the sum of the effect of all the chemicals or even more. Similarly, if several short tasks are carried out, exposures from each task may be cumulative (e.g., manual handling).

5.2.4. Existing Controls In assessing the level of exposure, the effectiveness of existing controls e.g., engineering, provision of PPE and work-rest periods should be taken into account. The risk is estimated based on the existing controls that are in place.

5.2.5. Hierarchy of Controls Control measure selection based on degree of risk. The greater the risk, the greater the effort required to control it and the further up the hierarchy you may have to go, and as mentioned below in the section 5.4.1:

5.2.6. Threshold Levels The threshold level of exposure is the level at which no adverse health effects are observed. For some occupational health hazards there are defined threshold levels [e.g., Occupational Exposure Limit (OEL)]. For most occupational health hazards threshold levels have not been established.

5.3. Setting Priorities The risk associated with a particular activity is judged by estimating the probability and consequence in relative terms, ‘low’, medium or ‘high’. This approach to the expression of risk is adequate for evaluation, allowing for a structured approach to be adopted in different working situations. An Occupational Health Risk Assessment (OHRA) is a useful tool in ranking occupational health risks. A ranking can be obtained by assigning to each identified occupational health hazard within the activity a severity and likelihood, based on their potential to cause ill health and the exposure. Therefore, the Health Risk Score will be determined by multiplying Severity (S), Likelihood (L) and Exposure (E), as per the formula S x L x E. The following tables (Table 1-4) describe the method for ranking the occupational health risk from each activity / area.

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Table 1: Severity Condition and Scoring for Occupational Health Risk Severity of Health Risk

Severity score

Criteria

None

No reported case of occupational illness / injuries

1

Slight

At least one suspected case of occupational illness / injuries

2

Moderate

At least two suspected cases of occupational illness / injuries

3

At least one reported case of occupational illness / injuries

4

More than one reported case of occupational illness / injuries

5

High Very High

Table 2: Likelihood Criteria and Scoring for Occupational Health Risk

Likelihood Very Unlikely

Likelihood score *

Criteria Absence of exposure sources and other conditions

1

Unlikely

Rare / occasional existence of exposure sources and other conditions

2

Possible

Frequent existence of exposure sources and other conditions

3

Likely

Very frequent existence of exposure sources and other conditions

4

Very Likely

Continuously presence of exposure sources and other conditions

5

Note *: For getting the total likelihood score (1 or 2 or 3 or 4 or 5), Refer Appendix B: Nomenclature for Likelihood for the details of the conditions / criteria

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Table 3: Exposure Condition and Scoring for Occupational Health Risk Exposure Condition

Likelihood score

Criteria

Not Occurred

Never occur

1

Infrequently

Once a month to once a year

2

Occasionally

Once a week to once a month

3

Frequently

Approximately one time daily

4

Continuously

Occurs many time daily

5

As stated above, the occupational health risk will be calculated by multiplying Severity (S), Likelihood (L) and Exposure (E). Based on the total score, the occupational health risk will be categorized into low, medium and high. The risk score and the respective risk rating are provided in the following table (Table-4).

Table 4: Risk Score and Respective Risk Rating for Occupational Health Risk Level of Risk Score [Severity (S) x Likelihood (L) x Exposure (H)]

Risk Rating

1 - 42

Low

43 - 84

Medium

85 - 125

High

For calculating the occupational health risk for each work activity / area, example provided below (Table - 5) as a reference. The list is not covering all the condition / category of severity, likelihood, exposure and it provided only for illustration only.

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Table 5: Example for Calculating Occupational Health Risk (OHRA) Score

Severity (S)

Likelihood (L)

Exposure (E)

Total Score (S x L x E)

None (1)

Very Unlikely (1)

Not Occurred (1)

1

Slight (2)

Very Likely (5)

Continuously (5)

50

Moderate (3)

Very Unlikely (1)

Not Occurred (1)

3

Moderate (3)

Likely (4)

Frequently (4)

48

Moderate (3)

Very Unlikely (1)

Continuously (5)

15

Moderate (3)

Possible (3)

Continuously (5)

45

High (5)

Likely (4)

Frequently (4)

80

Very High (5)

Very Likely (5)

Continuously (5)

125

Risk Rating Low

Medium

High

5.4. Reducing Risks: Remedial Actions 5.4.1. Controlling adverse exposure The general principles of controlling adverse exposure to occupational health hazards are wellknown and the following hierarchy of controls needs to be taken into account for preventing the adverse health effects in each workplace of the respective group. 

Eliminate the hazard altogether. For example – get rid of the dangerous machine.



Substitute the hazard with a safer alternative. For example – replace the machine with a safer one.



Isolate the hazard from anyone who could be harmed. For example – keep the machine in a closed room and operate it remotely.



Engineering controls to reduce the risk. For example – attach guards to the machine to protect users.



Administrative controls to reduce the risk. For example – train workers how to use the machine safely.



Personal Protective Equipment (PPE). For example – wear gloves and goggles when using the machine.

It should be noted that this hierarchy of control can be applied to all occupational health hazard categories.

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5.4.2. Remedial Action Plan Where the need for action to reduce occupational health risks is identified by OHRA, a remedial Action Plan should be drawn up. For high risk activity, the adequate control measures shall be established to bring the risk levels to medium before the activity can be performed. For medium risk activity, the activity shall be further analyzed to determine if any additional control measures are required. If required, such additional control measures shall be established before the activity can be performed. For low risk activity, no additional control measures will be required. This action plan should state which additional control or recovery measures are required for controlling the health risk in the workplaces. This action plan should include priorities of control measures, responsible person and target dates for actions. Each group should develop a plan to ensure that the action plan has been carried out efficiently, effectively and on time. The remedial action plan can be accompanied with the occupational health risk rating that are developed (Refer Appendix-A).

5.5. Record Management 5.5.1. Recording OHRA A written record of the OHRA should be kept. The record of the OHRA should:       

Be communicated to relevant group’s employee Be readily retrievable when needed for audits and periodic review; Meet statutory and company legal requirements; Be kept for a period as required for national practice Include exposure monitoring where applicable Be linked to occupational health records where applicable Be linked to the company HSE management system

5.5.2. Review of OHRA OHRA should be reviewed annually, and in particular, in response to changes in activities, chemical, equipment or others.

5.6. Health Risk Register (HRR) 5.6.1. Health Risk Register (HRR) – KOC.HE.019 Occupational Health Hazard Identification, Occupational Health Risk Evaluation and Remedial Action Plan shall be recorded in a Health Risk Register (HRR). The HRR is a controlled Microsoft Excel spreadsheet that enables all occupational health risk aspects to be clearly identified along with key information regarding their control and actions. The template for the Health Risk Register (HRR)-KOC.HE.019 is shown in Appendix-A of this procedure. The editable version of the HRR is available in KOC HSEMS portal. All groups shall utilize only this standard template to ensure that all occupational health aspects are evaluated consistently across KOC.

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All groups shall prepare and upload their controlled copy of Health Risk Register in their respective intranet portal and shall be accessible to all their employees and contract personnel. The Groups Health Risk Register shall have the document number as follows: KOC.HE.019.XXX Where, “XXX” shall be the respective Group’s Abbreviation (all in capital letters) For example: 

The HRR for Operations (SK) group will be KOC.HE.019.OSK



The HRR for Support Services (WK) group will be KOC.HE.019.SSWK



The HRR for Field Development (NK) group will be KOC.HE.019.FDNK



The HRR for Public Relations & Information group will be KOC.HE.019.PRI



The HRR for Research & Technology group will be KOC.HE.019.RT



The HRR for Industrial Services group will be KOC.HE.019.IS



The HRR for Ahmadi Services group will be KOC. HE.019.AS



The HRR for Planning group will be KOC. HE.019.P

However, for groups having same initials, a second letter shall be added for distinguishing each other. For example: 

The HRR for Exploration group will be KOC.HE.019.EX and the HRR for Engineering group will be KOC.HE.019.EN



The HRR for Major Project (I) group will be KOC.HE.019.MPI and the HRR for Major Project (II) group will be KOC.HE.019.MPII All Controlling teams shall ensure that their contractors are aware of their respective health risk register.

In case the Health Risk Register (HRR) is deemed necessary and appropriate to have at any team level, then such HRR shall have the document number as follows: KOC.HE.019.XXX.YYY Where, “XXX” shall be the respective Group’s abbreviation (all in capital letters) And, “YYY” shall be the respective Team’s abbreviation (all in capital letters) For example: 

The HRR for Production Operations (WK) team, which is under Operations (WK) group, the document number will be KOC.HE.019.OWK.POWK

6.0. Key Documents / Tools / References o

IPIECA (International Petroleum Industry Environmental Conservation Association) / OGP (International Association of Oil and Gas Producers) 2005, A roadmap to Health Risk Assessment in the oil and gas industry

o

Kuwait Environmental Public Authority Regulations

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o

Salvatore DiNardi: The Occupational Environment: Its Evaluation, Control, and Management, Second Edition

o

OHSAS 18001:2007 – Occupational Health and Safety Assessment Series

o

KOC.GE.001 – HSEMS Manual

o

KOC.GE.004 - HSE Compliance Identification and Tracking Procedure

o

KOC.GE.005 – HSE Compliance Register

o

KOC.GE.013 - HSEMS Document Control Procedure

o

KOC.GE.045 – HSE Records Management Procedure

o

KOC.HE.019 – Occupational Health Risk Register (Template)

7.0. Abbreviations  HRR- Health Risk Register.  HSE – Health, Safety and Environment  HSEMS – Health, Safety and Environment Management System  IAQ – Indoor Air Quality  IPIECA - International Petroleum Industry Environmental Conservation Association  KOC – Kuwait Oil Company  KEPA – Kuwait Environment Public Authority  OGP - Oil and Gas Producers     

OEL - Occupational Exposure Limits OH - Occupational Health OHRA - Occupational Health Risk Assessment PPE- Personal Protective Equipment STEL- Short Term Exposure Limit

8.0. HSE Records (Retention Period)  Group Health Risk Register (Indefinite and updated as required)  Group Health Risk Remedial Action Plan, as applicable (Indefinite and updated as required)

Review and Revision Log Review / Revision Date

Document Approver

Document Author

July 14, 2011

Manager Medical Group


Draft procedure circulated among HSEMS Implementation Committee members for review & comments

Sept. 18, 2011

Manager Medical Group


Final procedure approved by HSEMS Implementation Committee and Issued for Implementation

Revision Details

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June 18, 2012

Manager HSE


Title of the procedure changed from “Occupational Health Impact Assessment Procedure” to “Occupational Health Risk Assessment Procedure”. Approver (Technical) changed due to the changes in the scope of work of the procedure. Section 1.0. Purpose / Scope modified and amended Section 2.0. Definitions modified and new definitions are added. Section 3.0. General Requirements are updated and amended. Section 4.0. Key Responsibilities are updated. Section 5.0. Procedure for “Occupational Health Impact Assessment” Process is replaced with “Occupational Health Risk Assessment (OHRA)” Process and the sub-sections are amended and updated accordingly. Section 6.0. New references are added and updated. Section 7.0. Abbreviations are updated. Section 8.0. Retention period for Health Risk register (HRR) is incorporated. Appendix A: “KOC Health Impact Assessment (HIA) Screening Checklist” is replaced with KOC Health Risk Register (Template). Appendix B: “Appendix B: Nomenclature for Likelihood” added for the reference.

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Control Tier 3 Uncontrolled Copy if printed.

Target date / Period Remarks

Specify if there is any relevant information and other measures related to the identified activity / hazard

Priorities the additional controls Responsible Personnel (Designation) for Controls Measures

Residual Risk Rating

Residual Level of Risk Score

Revised Exposure Score

Revised Severity Score Revised Likelihood of Occurrence Score (with additional controls)

Additional Controls Required

Existing Controls

Legal Requirements Applicable Relevant Reference to HSE Compliance Register

Risk Rating

Level of Risk Score = Severity * Likelihood * Exposure

Exposure Score

Likelihood of Occurrence Score

Severity Score

Health Effects

Sources / Causes

Occupational Health Hazard

Activity

Area

Ref. Number

Specify the target date/period for the completion of implementation of the additional controls

Specify the personnel (designation) responsible for those identified additional controls required

Identify and prioritize the additional controls

Not Occurred = 1, Infrequently = 2, Occasionally = 3, Frequently = 4, Continuously = 5 (Refer to table :3) The level of risk is calculated by multiplying the revised severity score and revised likelihood of occurrence score (with additional controls) and revised exposure score If Level of Risk Score 1-42, Low,: If between 43 - 84, Medium; if 85-125, High (Refer to Table:4)

Very Unlikely – 1; Unlikely – 2; Possible – 3; Likely – 4; Very Likely – 5 (Refer to Table: 2)

None – 1, Slight – 2, Moderate – 3, High – 4, Very High – 5 (Refer to Table – 1)

To define those proved existing measures to eliminate / reduce the Health Risk & they can be represented in specific mechanisms, actions, procedures, specification, standards, practices etc. To define those required additional measures to eliminate / reduce the Health Risk & they can be represented in specific mechanisms, actions, procedures, specification, standards, practices etc.

To identify the reference number from HSE Compliance Register

If Level of Risk Score 1-42, Low,: If between 43 - 84, Medium; if 85-125, High (Refer to Table:4) Yes (Y) if Legal requirements are applicable; No (N) if no legal requirements are applicable

The level of risk is calculated by multiplying the severity score, likelihood of occurrence score and exposure score

Not Occurred = 1, Infrequently = 2, Occasionally = 3, Frequently = 4, Continuously = 5 (Refer to table :3)

None – 1, Slight – 2, Moderate – 3, High – 4, Very High – 5 (Refer to Table – 1) Very Unlikely – 1; Unlikely – 2; Possible – 3; Likely – 4; Very Likely – 5 (Refer to Table: 2)

Serial number of the Work Area / Activity To identify the area of the process / activity E.g. South Tank Form, Office, etc. To identify the activity that is performed at the area. E.g. Computer Operation, Cleaning etc. To define the Hazard that can create the occupational health risk to the employee (Refer section 5.1.1.1 to 5.1.1.5 of this procedure) To define the sources / causes that emits / produces the hazard. E.g, Fumes from the welding, Repetitive motion in the workplace. To define the health effects due to the exposure to the hazard identified. E.g, Metal Fume Fever, Musculoskeletal Disorders KOC.HE.018 – Occupational Health Risk Assessment Procedure Page 18 of 21

Appendix A: KOC Health Risk Register (Template) Health Risk Rating Remedial Action Plan

Revision Date June 14, 2012


Appendix B: Nomenclature for Likelihood Note: Each bullet of the criterion for the likelihood in the following table carries one (1) point and an additional point will be added for each criterion to arrive at the range of total point. The likelihood score (1 or 2 or 3 or 4 or 5) to be provided, if the total points are within the range provided in the column next to the criteria in the following table. Criteria

Range of total points

Likelihood score

Non-Hazardous Materials being used for the process / operation No need to open any system / pipeline for inspection Completely closed process No leaks and spillage of chemicals and other hazardous materials / gases in the work area No history of fugitive release and leaks No draining or decontamination involved in the process / operations Good Ventilation in the work area Area noise level well below the occupational exposure limits Absence of radiation sources Atmospheric temperature less than 250 C and it is within the comfortable level (23 -260 C)  No fungi / bacterial sources (for. e.g., stagnant water) in the work area  No need of working with the awkward postures like twisting, pending and others

1-12

1

Likelihood

Very Unlikely

         

Control Tier 3



Likelihood

Unlikely

Possible

Criteria  Enclosed process. No intentional releases of the chemical (s) / toxic gases occur. Fugitive or inadvertent releases may occur  Absence of hand operations involving potential close contact with hazardous chemicals  System infrequently opened for maintenance or routine operation.  Adequate draining and decontamination done prior to opening  No leaks and spills  Non-volatile liquid and non-dusty solid  Good Enclosure and ventilation at points of potential significant exposure. History of good ventilation performance.  Area noise level well below the occupational exposure limits  Completely sealed and regularly inspected ionizing radiation source  Atmospheric temperature less than 250 C and it is within the comfortable level (23 -260 C)  Occasional presence of fungi / bacterial sources (for. e.g., stagnant water) in the work area  Rarely working with the awkward postures like twisting, pending and others

      

Partially enclosed process. Limited hand operations involving potential close contact with chemicals Few leaks and spills Low volatile liquid and low dusty solid used for the process Good Ventilation but incomplete enclosure and history of good ventilation performance Area noise level below the occupational exposure limits Completely sealed and regularly inspected ionizing radiation source, but activity is once a week  Atmospheric Temperature greater than 260C but less than 320C  Frequent (once a month) presence of fungi / bacterial sources (for. e.g., stagnant water) in the work area  Frequently (once a month) working with the awkward postures like twisting, pending and others

Control Tier 3


Likelihood score

13-24

2

25-34

3



Likelihood

Likely

Criteria  Controlled release process. Deliberate or planned release of chemicals.  System occasionally opened for maintenance or operation with fair but incomplete draining and decontamination.  Occasional leaks and spills  Moderately volatile liquid and moderately dusty solid used for the process  Fair Ventilation but incomplete enclosure and history of fair ventilation performance  Area noise level above the occupational exposure limits  Completely sealed and regularly inspected ionizing radiation source, but activity twice a week  Atmospheric Temperature greater than 320C but less than 350C  Frequent (once a week) presence of fungi / bacterial sources (for. e.g., stagnant water) in the work area  Frequently (once a week) working with the awkward postures like twisting, pending and others


Likelihood score

35-44

4

45-56

5

o Open process. Chemical (s) are routinely in contact with the atmosphere and no measures are taken to prevent their release (e.g., open process vessels)

o Hand operation involving potential contact with chemicals (hand dumping, sampling, cleaning containers, etc.,)

o Frequent opening of system for maintenance or routine operation with inadequate draining and Very Likely

decontamination prior to opening. Frequent leaks and spills Highly volatile liquid and Highly dusty solid used for the process Absence of adequate system enclosure and ventilation History of poor ventilation performance Area noise level above the occupational exposure limits Completely sealed and regularly inspected ionizing radiation source, but activity more than 2 times a week o Atmospheric Temperature greater than 350C o Continuous presence of fungi / bacterial sources (for. e.g., stagnant water) in the work area o Continuously working with the awkward postures like twisting, pending and others

o o o o o o

Control Tier 3


KOC.he.018 - Occupational Health Risk Assessment Procedure

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