City of Fitchburg, WI

Treatment

Chlorine is added to the City's water to disinfect the water and minimize the risk of contamination by bacteria and

and viruses. The City maintains and average free chlorine residual around 0.6 parts per million.

Fluoride is added to the City's water system to strength teeth and to help prevent tooth decay. The City maintains an

average fluoride level in the water system of 1.1 parts per million.

Polyphosphates is a food grade additive added to the water supplied from three of the City's high capacity wells to

maintain water clarity and reduce the possibility of iron stains. Polyphosphates do not remove the iron in the water,

rather they hold the iron in solution; reducing the amount of iron that settles to and accumulates on the bottom of

the water mains.