I'd swim in the outlet of a nuclear power station. The water is perfectly safe. It's probably the most monitored and controlled water going into any body of water.,(reply>), @Hyperion isnt a nuclear power plant just one giant geothermal engine.... as in the rods only boil water for a turbine?,(reply>), @Akuma look up logical fallacies, like all of them really XD,(reply>), @KazDragon So mission successfully failed,(reply>), @Todd Howard You can know. Actually radioactivity is easy to detect with a geiger counter. Unlike chemically contaminated waters that requires a specialized laboratory for analysis.,(reply>), Who said nuclear power plant? This isn't a nuclear power plant, it is a geothermal power plant. BIG difference. No radiation at all.