What is the temporary, annual switch in water disinfection?
During the majority of the year, chloramine is used for drinking water disinfection in the City of Falls Church water system. For a short period each year, disinfection switches from chloramine to chlorine. This change is part of an annual program to clean water pipes in the City of Falls Church water system and maintain water quality throughout the year. A temporary change to chlorine is a standard water treatment practice for water systems that use chloramine during the majority of the year.