What is the cloud we see coming out of the Harris cooling tower?
What you see coming out of the cooling tower at Harris is water vapor. The water vapor is used in cooling plant components only; it is not part of the radioactive process. The Harris cooling tower is a hollow structure in which water is cooled, releasing its heat through water evaporating into the air. About 500,000 gallons of water per minute is circulated between the cooling tower basin and the condenser. The tower is 526 feet tall.