Can chemicals used to treat CUDs water cause odors in my home?
CUD began using chlorine dioxide in late 2006 as part of the disinfection process at the water treatment plant. Chlorine dioxide safely and effectively purifies drinking water while reducing disinfection byproducts such as trihalomethane and haloacetic acid. However, chlorine dioxide can sometimes contribute an odor to a customers’ home. Most of the chlorine dioxide added during disinfection disappears by the time the water enters the distribution system. However, a very small amount (less than one-quarter part per million) may remain in until it reaches the tap. When the customer turns on their tap, the chlorine dioxide immediately evaporates. If this gas mixes with petroleum-based vapors from such products paint and carpeting, a noticeable odor is produced. Chlorine dioxide levels in drinking water are strictly regulated by the Environmental Protection Agency (EPA). It is important to remember that the odor is caused by the interaction of chlorine dioxide gas with petroleum-based vap
