River water used for power plant cooling system?

I work in a power plant and we use river water in our cooling system. I have to enter a vessel where this cooling tower water has passed through. The river water is treated with sodium hypochlorite and there will not be any vaporizing of the water while individuals are in the vessel. Should I be concerned with Legionella?


Since the water will neither be aerosolized nor drunk, the risk should be minimal or non-existent.