The power plant requires a proper balance of its water chemistry in order for the plant to run smoothly.
Much of the water used to generate electricity is recycled. This recycling creates several different loops of water throughout the generating station. Each day, samples are collected and analyzed, to determine the integrity of each loop and to determine the amount of chemical additions that are necessary to safeguard the equipment. Generation equipment is very expensive and quite sensitive to the water chemistry.
All the chemical data obtained is transferred into a computer program which is designed to aid in calculations of required chemicals. The program also allows comparison of data over a number of months or years. Trends are able to be plotted on graphs, and statistical data is readily compiled.