This risk assessment document identifies hazards, persons at risk, risk ratings, and proposed control measures for flushing and chemical treatment activities at a power plant project in KSA. Hazards identified include power tools, noise, manual handling, hazardous substances, compressed air, working at heights, foreign objects in eyes, electrical works, electrical equipment, slips/trips/falls, and fluid spills from vehicles/equipment. Risk control measures proposed include training, use of personal protective equipment, inspections, maintenance, and administrative controls. The risk assessment was conducted by Sajid Ali on September 18, 2015.