The Washington Aqueduct will be making a temporary switch from the disinfectant chloramine to chlorine from Monday, March 17 to April 28.
“The annual switch in water disinfection is part of a routine program to clean and maintain drinking water systems in the District of Columbia, Arlington County and the northeastern portion of Fairfax County,” according to a press release. “During the temporary switch to chlorine, local water authorities will also conduct system-wide flushing to enhance water quality. This program is a common practice for many U.S. water systems that use chloramine during the majority of the year.”