Write a risk assessment for Site hazard identification

A robust workplace risk assessment and site hazard identification procedure should combine a baseline workplace survey, task-specific job hazard analysis (JHA), and field-level review before and during work. Start by identifying the jobs or tasks being performed, where hazards are located, who may be exposed, and the likely severity and likelihood of injury. Break each job into steps, observe the work, identify hazards at each step, and review findings with the employees who perform the work so that existing and potential hazards are captured accurately. Field-level assessments should then be used on site in real time to confirm that conditions have not changed and that controls remain adequate before work begins. [6] [3] [1]

1. Conduct a baseline survey of the workplace, including processes, tasks, equipment, layout, traffic routes, lighting, noise, chemical use, and environmental conditions.
2. Break each job into logical steps and observe the task being performed.
3. For each step, identify hazard types, hazard sources, body parts at risk, who may be exposed, and possible consequences.
4. Consider both obvious and less visible hazards such as struck-by, caught-in, falls, chemical exposure, dust, electrical contact, ergonomic strain, repetitive motion, and environmental hazards.
5. Assess risk by rating severity and probability, then assign a risk priority or code.
6. Determine whether existing controls are adequate; if not, define additional controls before work starts.
7. Document the assessment, communicate findings to affected workers, and certify the hazard assessment where required.
8. Repeat the assessment when conditions change, after incidents or near misses, when new equipment or materials are introduced, and at each site as needed.

[5] [14] [7] Risk evaluation should be systematic and documented. A practical method is to use a matrix that combines the severity of potential injury with the probability of occurrence to assign a risk priority code. High-risk activities require immediate suspension until the hazard is eliminated, controlled, or reduced. Medium-risk activities are unacceptable until controls are implemented as soon as possible. Low-risk activities may not require additional controls, but legal or standard-specific protections may still apply. This approach helps prioritize resources and ensures the most serious hazards are addressed first. [2] [2] [1]

Control measures should follow the hierarchy of controls. First eliminate the hazard where possible, then substitute safer materials, equipment, or methods. Next apply engineering controls such as guarding, isolation, ventilation, barriers, interlocks, or mechanical handling aids. Then use administrative controls such as safe work procedures, permits, supervision, scheduling, signage, inspections, and training. PPE should be the last line of defense and must not replace feasible higher-level controls. Interim measures may be needed until permanent controls are in place. [1] [4] [9]

• Stop or postpone high-risk work until effective controls are in place.
• Revise the work method to remove exposure, such as doing the task from ground level instead of at height or using safer equipment.
• Install physical safeguards such as machine guards, edge protection, ventilation, isolation, or traffic separation.
• Introduce administrative measures such as permits to work, lockout/tagout, exclusion zones, housekeeping, supervision, competency checks, and emergency arrangements.
• Provide targeted training and pre-job briefings so workers understand hazards, controls, and changes in conditions.
• Verify controls in the field before starting work and whenever conditions change.
• Record corrective actions, assign responsibility, and track completion dates.

[3] [8] [3] Safe systems of work should be written for tasks with significant risk and should describe the job steps, hazards, required controls, competency requirements, equipment to be used, emergency arrangements, and any permits or authorizations needed. Before work starts, hold a site-specific job briefing with the crew to review the JHA, confirm controls, discuss site hazards not already captured, and agree on how the work will be done safely. The JHA should be treated as a living document and updated when conditions, scope, personnel, or environment change. [9] [3] [3]

PPE requirements must be based on the hazard assessment and matched to the specific exposure, body part at risk, and worker. Typical categories include eye and face, head, hearing, hand, foot, respiratory, fall, leg, torso, and flotation protection where relevant. PPE must be selected only after considering whether the hazard can be eliminated or controlled by other means, and employers must ensure the PPE fits each employee, communicate selection decisions, and require its use where hazards remain. For tasks involving heat, sparks, flying particles, chemicals, noise, or respiratory contaminants, the assessment should specify the exact PPE and any supporting controls such as ventilation. [5] [12] [10]

• Use incident history, near misses, and previous assessments to prioritize jobs and recurring hazards.
• Involve frontline workers in hazard identification and solution development.
• Inspect workplaces regularly to confirm controls remain effective and to identify new hazards.
• Review SDSs, equipment manuals, and manufacturer warnings when chemicals or machinery are involved.
• Maintain equipment, guards, and safety devices; ensure the correct tool is used for the task.
• Integrate findings into training, accident prevention programs, and written procedures.
• Reassess after changes in equipment, materials, process, staffing, or site conditions, and after any accident.

[9] [7] [2] For compliance, employers should ensure the assessment is documented and retained in the format required by the applicable occupational health and safety rules. At minimum, documentation should identify the workplace, the assessor or certifier, the assessment date, and the fact that it is a certification of the hazard assessment. Where a JHA-based PPE assessment form is used, complete all required certification fields. Compliance also requires communicating hazards and controls to workers, documenting PPE decisions where required, and keeping assessments current through periodic review and reassessment after changes or incidents. [7] [13] [11]