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Task Hazard Assessment AECOM Imagineed <br /> Sub-Slab Vapor Implant Install EIIIJWX0 1 0 01-01-22-02 <br /> job/taskREMINDER: Use 4-Sight at the start of, and continuously throughout the <br /> Job Steps Potential Hazards Risk Critical Actions To Mitigate Hazards Risk <br /> List all steps required to perform How could you be hurt? (initial List control measures required to eliminate, control or protect against the potential hazards (final) <br /> a task in the sequence they What would the injury be? ) associated with each job step to minimize the risk of <br /> are performed injury or environmental impact. Identify any`Stop Work'triggers. <br /> • Make sure drill is straight to ensure a vertical hole is drilled. <br /> • Ensure that area is clear of power/extension cords. Position power cords behind <br /> body. <br /> 2f. Flying/shattering objects 8 2f. Have bystanders maintain a 5 foot distance from the operation at all times. Wear all <br /> required <br /> 4 <br /> 22 . Back strain from moving drill 6 2 . Bend knees to lift out drill out of case to prevent back strain. Stretch before working. 4 <br /> Do not use awkward positioning. <br /> 8 <br /> 2i. Hand positioning/pinch points <br /> 2i. Use leather gloves to install drill bits and lock in place. While moving drill, keep hands 4 <br /> away from the top of the drill bit. 4 <br /> On- <br /> Site <br /> Edits: <br /> 3. Starting the hammer drill 3a.Strain or sprain from hammer 7 3a. Make Shop-Vac hose positioned next to drill area in order to collect dust and 4 <br /> drill binding in hole. concrete cuttings: <br /> • Concrete is much more difficult to core; be careful of rebar and aggregate in <br /> concrete. <br /> • Gently and slowly apply force to penetrate the slab surface. DO NOT FORCE. <br /> Let the drill bit do the work.This is not good for drill bit and may cause machine to <br /> bind up. Potential to spin and strain wrists. Let go of drill assembly immediately. If <br /> too much force is required then switch out dull bit with new. <br /> • If you force bit into concrete it may cause breakage. <br /> • Be careful if restarting in borehole. Make sure the bit is not bound up or it could <br /> send the machine into a spin. <br /> 3b.Finger injury from pinch points 8 3b. Make sure fingers are clear of drill bit area. <br /> 4 <br /> On- <br /> Site <br /> Edits: <br /> DCSA Task Hazard Assessment Form <br /> Version 1—October 22,2018 2 of 5 <br />