V. Risk Assessment: 35 Points Determine at least 5 occupational health hazards/risks that can cause injury or illness workers at the construction site shown in Figure 1. For each of the potential risk sources that you identified, perform risk assessment (likelihood and consequence) using the risk assessment matrix shown in the Figure 2, and provide risk rating. Consider the controls already in place in the risk assessment. From the risk rating, determine the top event that can cause the most unwanted occurrence. (5 points each for a total of 25 points) Perform root cause analysis on the top event using the Bow Tie Analysis Model: (10 points) 1. What is top event? (1 point) 2. What is the hazard or potential hazard that can cause an unwanted event to happen or harm? (1 point) 3. What would be the mechanism that may release the hazard or an unwanted event to happen? (1 point) 4. What are the current controls in place to prevent the unwanted event from happening or threat(s) from releasing a hazard? (2 point) 5. As a Hygienist, what controls do you propose to either prevent or reduce the likelihood of the unwanted event from occurring, or if it does occur, reduce the consequence(s) of the event? (3 point) 6. If the unwanted event(s) occurs, what are the possible consequences? (1 point) 7. If the unwanted event occurs what would be the recovery measures to available or to be implemented to reduce the consequences? (1 point) 7. If the unwanted event occurs, what would be the recovery measures to available or to be implemented to reduce the consequences? (1 point) Figure 1 - Equipment operator, Event Risk Rating/Priority (1) Doruequence Likelihood Minor LOW Medium High Major Medium (11) Significant (16) Significant non 1231 D Almost certain (20) Medium Medium (12) SIN Significant (17) LI Low (4) Medium (8) Significant (13) Significant (18) Possible Low (2) Low (5) Medium 10) Significant (14) Significant (19) Unlikely Low Low (1) Medium (6) (3) Medium (10) Significant (15) Pare Figure 2 - Risk assessment matrix